Pump for a homemade high pressure washer. DIY mini high pressure washer

Today, you no longer need time and effort to deal with dried-on dirt and dust clogged in secluded corners, because new models appear on the market every year. pressure washers... These devices are used to clean windows, cars, walls and doors of houses, barbecues and other items that are difficult to clean with a cloth or brush. The strong pressure of water copes with this task much more efficiently and saves money spent on washing the car in the service, while the water consumption is also minimal. Therefore, having such a sink in your arsenal is useful for everyone.

The leading companies in the production of pressure washers are the German firms Bosch, Karcher (hence the second name of the sink is Karcher) and Elitech. The average price of these sinks on the market starts at 10,000 rubles. Inexpensive car washes cannot be used on more than one car per day, and the most expensive models are limited to seven cars.

Washing device

The main component of the sink (or karcher) is the engine, which creates the necessary water pressure. A pump or motor will do (it is not necessary to buy a new one, take one that works from an old car), the motor is built into the sink body and must be connected to a power source. For the sink body (body), choose a durable material, thick plastic or metal. Even if you purchase a hard-wearing case, it is best not to use the sink for more than three hours in a row. This will disable the sink soon.
Hose attachments are available to facilitate the cleaning process - brushes of various hardness, soft rollers, standard spray guns. If you purchase a pair of attachments, you can expand the functions of your sink by using it as an automatic mop or steam cleaner (you need to equip the sink with a heater).

Internal pressure

The higher the pressure inside the housing, the stronger the stream of water from the hose, which means that the dirt lags behind more easily. Set the pressure carefully, because water can simply break a fragile part of a car or glass, leave dents. Manufacturers set the pressure at 150-170 bar, but 100 bar is enough to clean the car.
If the contamination cannot be cleaned with a jet of water, purchase a special nozzle for a hose, a turbo cutter. It will help to wash tires, discs, remove dirt accumulated in the cracks. You can use a mini-sink both outside and inside the cabin. If you are using a turbo cutter you will need 160 bar pressure.

Electric pump pump

Before purchasing and using a pump for designing your sink, read how to choose the right device.
The material of the pump determines the durability. A bad option is a plastic pump, this will soon fail if you use it for more than 20 minutes at a time. Expensive but reliable pumps are made of brass, as it does not corrode. These pumps are rarely found in commercial car washes.

How to use the mini sink

To wash worked properly, follow these guidelines.

• Be sure to check the functionality of the sink before using it, this will save your time and health.
• Clean and replace the filter installed in the car wash after each use.
• If the sink uses electricity in operation, and the source is unstable, supply it with a battery.
• Do not let children use the sink.
• If repairs are needed, do not hesitate to carry them out. Replace faulty components of the sink.
• Update the gaskets of the device.
• Protect your sink from temperature extremes.

How to make Karcher yourself

Although car washes have achieved widespread use, their cost is high. So, if you want to do the sink yourself, you will need:

• canister;
• irrigation hose with a gun;
• pump;
• Union;
• canister cover;
• tubeless wheel fungus;
• rubber gasket;
• coupling.

These are the components of the future car wash. Materials that come in handy in the manufacturing process:

• drill;
• sealant.

First step. Selection of ingredients.

The required volume of the canister depends on you and the purposes for which you use the car wash: a five-liter canister is enough for a car. Drivers carry a car wash in their luggage, and therefore choose a body both in terms of volume and dimensions.
The irrigation hose must be strong and flexible and must not be twisted or broken. Nylon braided hoses are considered durable. A hose consisting of several layers is more reliable. Don't skimp on this component. There is only one requirement for the gun: it must hold tightly to the hose.

The pump can be foot or automatic. The high power of this pump will not be useful to us, so do not buy expensive. Using an automatic pump is much more convenient than using a foot pump, since you do not have to constantly drag the pump from place to place and do unnecessary foot work. However, the decisive role is played by the cost of the pump, the automatic one is three times more expensive.
Choose the fitting and the coupling at your discretion, the main thing is that they are in close contact with each other. It is preferable to purchase both the fitting and the coupling made of the same material (plastic or metal).

Second phase. Preparing the canister.

Drill a hole in the canister to fit your sleeve. Insert a coupling with a screwed in fitting into this hole. Secure the structure with a sealant so that the coupling does not jump out during operation, and the required pressure remains in the canister.

Stage three. Collecting the lid.

The lid needs to be strong, solid and suitable for the canister. To prevent air from escaping from the canister, attach a rubber gasket to the bottom of the lid. Then punch a hole in it and insert the tubeless fungus into it.

Fourth stage. Collection of constructions. Additional functions.

Tighten the canister with the lid, connect the cord from the pump to the fungus, attach the free edge of the hose to the hole made in the canister using a fitting. The homemade sink is ready. The principle of operation of such a sink is simple: using a pump, air is pumped into the canister with water (while the canister is not filled with water to the brim). Pressurize up to 0.3 bar or higher if your canister can withstand. Under the influence of pressure, the water jets out of the pistol in a stream when the handle is pressed.
If you will be using the sink during the cold season, equip your sink with a special burner to heat the water. For these purposes, you will need a more voluminous canister, it will lose mobility, but with the help of hot water the car is cleared of strongly dried dirt.

Provide a power source for the sink. If the car wash runs on fuel (gasoline or diesel), then there will be no problems with moving. When planning an electric car wash, take care of a working and accessible source of electricity. In this case, you are unlikely to be able to freely transport the sink from place to place, but you do not have to spend money on expensive fuel.
Decide in advance for what purpose you are using the sink. If for cleaning house windows or car wheels, then a compact, mobile car wash with wheels and a long hose will suit you. When using a sink on a production scale, its ability to move is not useful, so it is better to design a stationary sink. It connects directly to the water supply. If necessary, adjust the automatic water supply in order to save.
If you can save on water consumption, then you can't buy washing components. To prevent the item from becoming dirty after washing, purchase special filters. There is no need for an expensive filter that purifies water to a drinking state. A filter is needed to purify water at least from litter, which will disable the sink.

You can even make money on the design of a pressure washer if you open a car wash. The main thing is that the sink you made works. Using the car wash, you can clean bicycles, mopeds, cars, trucks and their components.

How to make a cigarette lighter karcher

This sink design is cost-free. Here's how to create a more complex model:
US you will need:

• windshield washer motor;
• irrigation hose with a gun;
• cigarette lighter (motor power supply), cigarette lighter plug;
• two hoses 3 meters long, one hose must fit freely into the other;
• corrugated hose with a diameter of 25-30 millimeters;
• switch;
• M8 bolt, washer and nut;
• two plastic canisters (volume 10 liters);
• 6 self-tapping screws;
• two-core electric wire 5-7 meters long;
• plastic sleeve;
• power cord;
• brush for washing the car.

Additional materials:

• sealant;
• drill.

First step. Create a hose.

We make a small hole in the bottom of one of the canisters. A thinner hose (up to 6 millimeters) and a two-wire wire are placed inside a thick hose (with a diameter of 10 millimeters or more). Then the hoses we fastened are inserted into the hole of the canister. A plastic sleeve is inserted into the free end of the hose. Further, a thin hose is attached to the washer motor, the wires are also attached to the motor.

Second phase. Creation of a canister with a double bottom.

The second canister is cut approximately in the middle to subsequently make a second bottom out of it with a shuttle. The motor is fixed on the second bottom of the canister; for this purpose, a homemade clamp is used, which can be made from the remains of a cut canister. For this we need an M8 bolt and some sealant.
The wires are also fixed with self-tapping screws and sealant. Then they connect, again using self-tapping screws, the body of the structure: the second bottom and the hinged cover.

Stage three. Completion.

Using a power cord, the wires are connected to the cigarette lighter. A hole is made in the brush for the button, the switch is fixed. The brush itself is pushed onto the edge of a hose with a plastic sleeve. Use the attached diagrams in your work to better understand the text.

DIY high pressure washer 41 photos:

A device such as a pressure washer has become widespread in modern farming. With its help, you can wash a car, terrace, house, etc. At the same time, it is quite possible to build a sink yourself, without having any special skills.

The high pressure washer is presented in the form of a cleaning device, with which you can clean various surfaces, supplied under high pressure with water.

Externally, the household mini-sink is compact, small in size apparatus. The body is made of plastic or silumin (materials that are sufficiently resistant to mechanical stress).

Device use area: cleaning different surfaces(car body, furniture, asphalt, tiles and much more).

How the pressure washer works.

The inside of the apparatus is inclined the washer rotates under the action of an electric motor. The plungers located on the washer move along a forward-return path. At the top and bottom, the trajectories of their movements open respectively suction valve and a high pressure valve. He is responsible for supplying water through the hose to the sprayer, forming a set.

Device Specifications

1. The power of the device is determined depending on the planned frequency of use of the sink: the more often we want to use the device, the more powerful the device we need. There is a direct relationship between the washing power and its performance: an increase in power entails increase jet pressure.
2. Indicators of pressure and water flow are one of the most important characteristics. The level of efficiency of the device depends on them by about 80%. Important: for fruitful work, the right amount of water must be supplied to the sink, determined on the basis of its technical characteristics. For example, water consumption the device is equal to the mark of 360 l / h, and the water supply system is able to supply only 200 l / h, this can lead to a breakdown of the sink.
3. Water temperature indicator in no case cannot be exceeded because the built-in pump is designed for a certain temperature. Typically, the indicator varies within 50 degrees (for semi-professional and household devices).

Homemade mini-sink project

The proposed mini-car wash project includes next set main elements:

• pump;
• electric motor;
• coupling for connecting the first two positions;
• container for water and detergents;
• frame;
• nozzle gun;
• high pressure hoses;
• nozzles.

The principle of operation of the manufactured sink is very simple. After water connections water enters the container, where it is pumped through a pump.

Cooking material and tools

To make a mini-sink, you have to acquire the following components.

The pump is one of the main components of the sink. The performance of the device should be high enough(range of developed pressure: 100-200 bar). When choosing a pump for a mini-wash, you should pay attention to the material of its manufacture. It is desirable that the cylinder head is made of brass, the pump pistons are made of ceramic or durable metal. The operating period of such a pump will undoubtedly please you.

A pressure washer cannot be imagined without an electric motor. Obviously, with an increase in engine speed the pump performance also increases, and hence the device as a whole. However, do not overdo it. The optimal option for the power of the electric motor is from 2 to 3 kW, the rotational speed is 1500-2000 rpm. To provide reliable start motor, an additional capacitor bank can be used.

The clutch connects the pump to the motor. The so-called soft clutch - the most acceptable option. It acts as a safety device in case the pump or motor gets stuck, and can also compensate for minor axial misalignment of the shafts.

The optimal volume of the water tank is from 4 to 20 liters. It is recommended to install a special filter (fine mesh) at the tank outlet, which can trap dirt and debris particles, preventing them from entering the pump.

The frame is the basis for fixing the sink elements. The traditional material of its manufacture is curved pipes. Often, wheels and a stop are attached to the frame so that the mini-sink can lean on them during operation. The handle on the frame will provide device movement across the territory.

A rather serious function is performed by a pistol with a nozzle - shapes the shape water jet. By pressing the handle, liquid is supplied, this saves water. It is better to buy the tip ready-made so as not to "rack your brains" over the design of the shut-off valve.

The device is usually supplemented with a nozzle (or several), which forms a stream that is most convenient for cleaning various surfaces. As a tool in the process of construction device you will need a knife, scissors, sealant.

DIY mini-sink assembly technology

One of the most important nuances when assembling a sink is creation of grounding. For these purposes, use a flexible three-core wire (double insulated) and a plug with an earthing terminal. In this case, by means of the contour the socket is also grounded.

The next step is to mount the sink on the frame, that is, we do the following sequentially:

1. We install an electrician.
2. We mount a gun with a nozzle.
3. We carry out the installation of a high pressure hose.

When equipping the water tank with a pump, make sure that all connections are durable and sealed. It is also very important that the device is installed in accordance with the recommendations of the part manufacturers.

We connect a pressure washer to the main water supply using a hose (acceptable sleeve length is at least seven meters).

Features of operation and repair

To prevent breakage and further repair of your mini-sink, you should heed the following simple recommendations:

• do not allow children to play with the device;
• in the process of using the sink, hold the gun firmly in your hands;
• do not direct the stream of water at animals and people;
• do not use the device at temperatures below 0 ° C.

If, nevertheless, your device needs repair, it can also be done with your own hands, provided that you know the design of the device.

So, what can break?

1. The most common case is wear of seals in the pumping mechanism, which leads to a significant decrease in its performance. In this case, the seals must be replaced.
2. Rubber rings can also wear out. in the design of the regulator pressure (if installed). A “symptom” of such a problem may be a drop in head and jet density.

Do-it-yourself high-pressure washer does not take much of your time, moreover, will save you money. Other advantages of such a homemade device include:

• lack of complex components of the device;
• ease of use;
• work efficiency comparable to purchased devices;
• very low probability of damage to the treated surface.

The use of a mini-sink in everyday life is undeniable. On condition competent use the device saves you time and money, keeping you and your family clean and comfortable.

In today's world, a large number of people own a car. But given so many cars on the road, not every one of their owners has a garage in use where you can store useful things for your iron horse. It is far from a secret that a car requires personal care, it is especially pleasant to drive a clean car. To wash a car, it is not necessary to constantly stand in line for a wash, or to buy a washer. In order to save money and time, you can make a mini-sink with your own hands, it will fit in the trunk, and you can use it anywhere.

Materials and tools:
- A plastic canister with two necks
- Hose from washing machine 2 m long
- Watering gun on the hose
- Quick-detachable union
- Tubeless tire valve
- Rubber gasket
- Coupling connecting
- Screwdriver and drills
- Rubber glue or sealant
- Automobile compressor

Step one. Air inlet assembly.
After collecting all the materials and preparing the tools, you can get to work. First of all, the author removes the lid from one neck (responsible for the drain). Taking a drill with a thick drill in his hands, he makes a hole in the center of the lid.

Note: when the sink is ready, when using the canister, you will need to put it on its side, with the filling hole down (so that the water comes out under pressure). Therefore, the cover of this outlet is left for the connection with the hose.

The wheel valve is pressed into the hole in the drilled cover. Now you need to let the sealant dry.

Step two. Installation of a water outlet.
In this step, it's time to prepare the second lid. It is removed, and the drill is again taken in hands, only now a feather drill is being used. A hole is made in the cover corresponding to the diameter of the coupling.

A connecting sleeve is inserted into the hole prepared in the cover.

For better fixing on the lid, the joint of the coupling, as in the previous step, is poured with silicone sealant, after which this lid also needs to be dried.

The fastening is no longer needed, only the nut is needed, the reverse side of the coupling is attached to it. The connection is also secured with a sealant.

After drying all connections, you can put the cover back in place.

Step three. Hose-to-spray gun connections.
The idea to use the hose from the washing machine came to the author for a reason, such a hose has the ability to withstand high water pressure. The cut off part of the hose is pushed into the union nut.

The hose cut is attached to the quick-release connector using a special fastener.

The main union and its nut are twisted.

You can now connect the nipple to the spray gun on the boom.

Step four. Connecting the hose to the canister.
In order to prevent air from escaping when water is supplied under pressure in the future, the author inserted a rubber gasket of the required size into the second nut of the hose.

The nut is screwed onto the quick-detachable union.

This completes the assembly of a homemade mini-sink!

Step five. Testing the sink in operation.
Water is poured into the canister.

Recently received very high popularity high pressure washers(AVD), most often they are used in car washes. With the help of AED, you can quickly and efficiently wash the car body, engine compartment, such hard-to-reach places as the underbody and wheel arch liners. But the use of such units is not limited to the car: they are successfully used in agriculture, metallurgy, utilities, etc.

The main cleaning principle is a directional high pressure water jet. Coming out of a special nozzle (nozzle), it is able to effectively clean the most severe impurities and remove complex blockages in pipelines.

Therefore, the "heart" of the AED (or pump) is high pressure.

Having carefully studied this article, you can easily independently assemble a fairly professional high-pressure apparatus by purchasing components for assembly on our website.

Let us consider how you can assemble a medium-sized high-pressure apparatus for washing cars, cleaning pipelines with a diameter of up to 150-200 mm, pumping out sludge from wells and sedimentation tanks, washing facades, and hydro-sandblasting.

Price pressure washers consists of two main components: a pump (pump) and a drive (, an internal combustion engine, a hydraulic drive). This is the most costly part in creating an AED.

Choice pump(pump) high pressure. We will only touch upon models with a crank mechanism.

You need to rely on three main parameters: working pressure, productivity (water flow) and shaft revolutions. In order to cope with the above tasks, we need a capacity from 900 to 1250 liters per hour and a working pressure from 180 to 250 bar. Low rpm on the pump shaft take priority over high rpm, as this increases the pump life. An important role is played by the width of the connecting rods on the shaft, however, with proper operation (sufficient level and timely oil change, prevention of overheating), this parameter can be neglected.

Electric motor... It is necessary to determine the power of the electric motor (or other drive). Many manufacturers of high pressure pumps willingly publish information about this in the characteristics of their products. For example, let's take a capacity of 900 liters per hour and a working pressure of 200 bar. An approximate calculation, without delving into the exact formulas, will be as follows: the product of capacity (l / min) and pressure (in bar) is divided by 550. We get the power value. The connection of the electric motor to the network is necessary through a contactor or a special starter. All equipment must be grounded.

The simplest way to connect pump and motor is shaft-to-shaft. With this mating method, the motor has only one rear bearing and the pump is bolted to the front motor cover. You can use other types of connections, using a flexible (elastic) coupling and flange, gearbox, belt transmission using pulleys.

On the resulting "monoblock", if desired and possible, you can "hang" pressure, switches "", a thermal valve, a damper, a pressure gauge, a cleaning filter and much more.

Frame.

If the device will be used stationary, then the frame is not necessary. But then you need to find a secure place to mount the electric motor.

If AVD is supposed to be transferred from place to place, then it will be required frame made of metal pipes or a profile, for mobility, you can equip it with wheels and a stop, as well as handles for easy transportation.

The quantity and quality of the water supplied to the high pressure pump is important.

Storage capacity. The best way to solve this issue is a storage tank, which has an autofill from the water supply network using a conventional float valve. It is necessary that the container is not completely sealed, but excludes the possibility of ingress of dirt or particles into it, so as not to damage the seals or ceramic inserts of the pistons (plungers). To do this, a filter is installed at the inlet to the container and the necessary valve is arranged on top. It is not recommended to add detergent solution directly to the container. For this, it is best to use sprayers, foam ejectors.

Most high pressure pumps are capable of drawing water on their own (self-priming), but you should not place the pump higher than 0.5 meters and use a regular garden hose for supply. For these purposes, you need to purchase a rigid hose (delivery-suction). The inner diameter of the hose for a pump with a capacity of 900 liters per hour must be at least 15 mm with a length of 3-5 meters.

Regular "soft" hoses are only suitable for use directly from the pressure water supply network. But do not forget that in such networks there are problems with the water supply necessary for the pump. This can adversely affect pump performance and shorten the life of the internal seals ().

Regulator... When installing a pressure regulator, the best way to connect is to use a bypass channel with its closure in a storage tank. In this case, when you close the gun, water will circulate through the container, and not inside the pump.

High pressure hose or - the length is selected as required, you can use several small hoses and a special connector. So that the hose does not wear out prematurely, because usually in the premises of sinks there are concrete floors without coating, it is worth using a special spiral protection made of polypropylene.

For canal cleaning hoses and (nozzles) are used.

, nozzles, nozzles- everything can be purchased for specific tasks that you set to complete current tasks.

Important Tips:

Pay attention to the screw connections - they must not leak and be securely fastened.

Do not try to unscrew the hose if it is under pressure - turn off AVD and release the pressure!

Clean the filter regularly, even if it is "visually clean".

Do not use gun on / off unnecessarily - frequent firing will wear out the gun regulator and valve!

Mainly for competent use AVD, just read the operating instructions! Your device will serve you for a long time and will require regular replacement of wearing parts in the pump-cuffs, valves, in the pressure regulator and scheduled oil change.

Do you know that if your car is more accustomed to a high-pressure car wash, with your own hands you can also provide it with such a luxury without special stations?

Features of high pressure car wash

Why are most of the special stations equipped with this type of sink? This is due, first of all, to the fact that with the help of this device it is possible to wash the body, bottom, suspension, without making any special efforts. The main positive feature of a high pressure car wash is that a directed jet of liquid easily and effectively removes dirt from the surface of the object. This jet arises from the operation of a high-performance pump, and forms its special tip.

Such a device will be useful not only for, but also for various household needs. So the intention to acquire your own system will also solve many everyday tasks, especially if you have a plot with a spacious house at your disposal. At least the washing of street communications and paths will be many times faster. There are many stores that sell this type of product, but it is much more pleasant to make a high-pressure car wash with your own hands. Moreover, this process is not particularly difficult.

Do-it-yourself high-pressure car wash - basic elements

The first thing to do is purchase all the parts you need to assemble the device. The most important and expensive part of a car wash is the pump. It should be of high performance. In addition, such a pump must develop a pressure of up to 100-200 bar. When choosing this part of the system, it is very important to pay attention to what materials it is made of. The most optimal version of the working part of the pump should look like this: the pistons are made of strong metals or durable ceramics, the heads of the blocks are cast from brass, and a large support area must be provided for the liners of the crank mechanism.

Sometimes, to save money, a car wash is assembled from a compressor, such a system is made, of course, faster with our own hands, and the compressor in this situation acts as a water pump.

Another important part is the electric motor. For a home car wash, it is best to use a 220-watt electric motor, that is, a single-phase one. This type of connection is safe and significantly saves money. Some car wash designs include capacitors and a single-stage gearbox. These elements can make the device easier to use as well as extend the life of the device, but they are not required.

We collect additional elements for a car wash

When creating a car wash with your own hands, you will also need a clutch. This element connects the pump and the electric motor. For high pressure washers, the best option would be to use a "soft" coupling, since it is able to compensate for the misalignment of the shafts along the axis. In addition, this type of clutch plays the role of a safety device in case the pump or gearbox gets jammed.

An important element in the design is the water tank. Indeed, in order for the pump to work uniformly and uninterruptedly, it must receive a certain volume of water. Most often, a tank is used as a container, which is connected to the water supply network. At the outlet in the tank, a special fine mesh is installed, which serves as a filter. This is to prevent dirt from entering the pump and interfering with its operation. The washing effect can be significantly improved by adding detergent to the tank.

A necessary element is also a pump capacity regulator. The regulator in most cases comes complete with an automatic unloading valve. This device is necessary in order to redirect water back into the tank in case of a need arises, in order to avoid overloading the pump. Also, in the process of creating a car wash with your own hands, a frame is used as the basis for all parts. In addition to it, high-pressure hoses are needed for operation, as well as a gun with a nozzle. After all the elements are fixed on the frame and connected to each other, the work on the car wash can be considered completed and you can start using this device.

Expert opinion

Ruslan Konstantinov

Automotive expert. Graduated from ISTU named after M.T. Kalashnikov with a degree in Operation of Transport and Technological Machines and Complexes. More than 10 years of professional car repair experience.

Today, buying a pressure washer is not financially costly. You can find a good household option from 5,000 rubles. The only problem is choosing a good manufacturer. The most demanded in the market are Bosch, Shtil, Karcher and some others. However, there are also many who, for some reason, prefer to assemble a car wash with their own hands, ready-made solutions fundamentally do not suit them. Moreover, in most cases, making such a homemade product is not a rational solution.

On the one hand, a home-made sink will show that your hands are growing from where they need to be, but on the other hand, it is easier and perhaps even cheaper to buy a ready-made solution. This will eliminate the need to search for information from the compressor or from the high pressure fuel pump from diesel engines to assemble your own washing machine. Plus, you will need to find a pistol (again, you need to buy it separately) and some other important structural elements. With all this, no one guarantees that the home-made device will be reliable, and the sink with it will be of high quality. As a hobby option, a home-made device can be considered, but it is hardly an alternative to a factory wash.