CN206429378U - Hand-held pressure washer - Google Patents

Abstract

The utility model is related to a kind of hand-held pressure washer, including：Body, with fluid input and for the fluid exit to outflowing jet body, the fluid input is connected to out liquid source；Membrane pump, is arranged in the body, for increasing intrinsic liquid stream output pressure.In one of the embodiments, the membrane pump includes：First cavity, with the first inlet and first liquid outlet relative with first inlet；First barrier film, is arranged at the side of first cavity, and pass through the mobile volume for compressing or expanding first cavity；Driving part, to make first barrier film produce reciprocating motion.Above-mentioned hand-held pressure washer is using membrane pump to the waterflow boosting into hand-held pressure washer, the membrane pump is compared to traditional plunger pump, structure is relatively simple, small volume, improves the portability of hand-held pressure washer, is easy to carrying and the ongoing operations of operating personnel.

Description

Handheld Pressure Washers

technical field

The utility model relates to the cleaning field, in particular to a hand-held pressure washer.

Background technique

The appearance of pressure washer brings great convenience to people's life, and it can be used to clean as automobile, glass doors and windows, courtyard road etc., not only efficient but also safe and convenient.

In order to make the pressure washer easy to carry, a portable pressure washer has appeared on the market. The portable pressure washer is that a motor, a pump body and a spray port are integrated to be convenient for the staff to carry. At present, the portable pressure washer uses the high-pressure water flow generated by the moving plunger pump to wash the surface of the object. It can peel off and wash away the dirt to achieve the purpose of cleaning the surface of the object. It is widely used in various fields of life. Compared with the traditional manual cleaning method, the high-pressure cleaner reduces water consumption, saves a lot of time, and has a better cleaning effect. However, due to the use of plunger pumps in the current pressure washer, the volume of the plunger pump itself is relatively large, so that the portability and operation convenience of the above-mentioned portable pressure washers are not good, and it is difficult for the operator to work. And transportation brings considerable trouble.

Utility model content

Based on this, it is necessary to provide a portable hand-held pressure washer for the above-mentioned traditional pressure washer that adopts the plunger pump as the driving source because of the large volume and inconvenient portability and operation.

A handheld pressure washer comprising:

The body has a fluid input end and a fluid output end for spraying fluid outward, and the fluid input end is connected to a liquid outlet source;

The diaphragm pump is arranged in the body and is used to increase the output pressure of the liquid flow in the body.

The above hand-held pressure washer uses a diaphragm pump to pressurize the water flow entering the hand-held pressure washer. Compared with the traditional plunger pump, the diaphragm pump has a relatively simple structure and small volume, which improves the performance of the hand-held pressure washer. Portability, easy for operators to carry and carry out daily operations.

In one of the embodiments, the diaphragm pump has: a first cavity with a first liquid inlet and a first liquid outlet opposite to the first liquid inlet; a first diaphragm disposed on the first liquid inlet; One side of a cavity, which seals the first cavity, compresses or expands the volume of the first cavity by moving; and a driving part, used to make the first diaphragm reciprocate.

In one of the embodiments, the diaphragm pump further includes: at least two one-way valves, respectively provided at the first liquid inlet and the first liquid outlet of the first cavity, for making the fluid one-way to the flow.

In one of the embodiments, the material of the first diaphragm is neoprene, fluororubber or nitrile rubber.

In one of the embodiments, the driving part includes: a motor; and an eccentric wheel, driven by the motor and driving the first diaphragm.

In one of the embodiments, the diaphragm pump further includes: a second chamber, arranged side by side and opposite to the first chamber, having a second liquid inlet and a second outlet opposite to the second liquid inlet. a liquid port; a second diaphragm, disposed on one side of the second cavity, and opposite to the first diaphragm, for compressing or expanding the volume of the second cavity through movement; the driving component, The reciprocating movement of the second diaphragm is performed simultaneously with the reciprocating movement of the first diaphragm.

In one of the embodiments, the diaphragm pump further includes: a speed regulating switch, electrically connected to the motor, and used to adjust the speed of the motor.

In one of the embodiments, the diaphragm pump further includes: a control switch, electrically connected to the motor, for turning on or off the motor.

In one of the embodiments, the handheld pressure washer further includes: a power supply component electrically connected to the driving component, and used for providing a DC voltage to the driving component.

In one of the embodiments, the power supply unit provides a driving voltage of 5-40V to the driving unit.

Description of drawings

Fig. 1 is a schematic structural view of a hand-held pressure washer in a preferred embodiment of the present invention;

Fig. 2 is a schematic diagram of the first structure of the diaphragm pump of the hand-held pressure washer according to the first preferred embodiment of the present invention;

3 is a schematic diagram of the second structure of the diaphragm pump of the hand-held pressure washer according to the first preferred embodiment of the present invention;

4 is a schematic diagram of the first structure of the diaphragm pump of the handheld pressure washer according to the second preferred embodiment of the present invention;

Fig. 5 is a schematic diagram of the second structure of the diaphragm pump of the hand-held pressure washer according to the second preferred embodiment of the present invention.

Of which: 100. Hand-held pressure washer 110. Body

111. Fluid input 112. Fluid output

120, 220. Diaphragm pump 121, 221. Driving parts

122, 222. First cavity 123, 223. First diaphragm

1221, 2221. The first liquid inlet 1222, 2222. The first liquid outlet

124, 226, 227. Check valve 1211, 2211. Motor

1212, 2212. Eccentric wheel 130. Power supply components

224. Second cavity 225. Second diaphragm

2241. The second liquid inlet 2242. The second liquid outlet

detailed description

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of this invention. The terminology used in the description of the utility model herein is only for the purpose of describing specific embodiments, and is not intended to limit the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The first preferred embodiment of the utility model discloses a hand-held pressure washer 100. The hand-held pressure washer 100 can connect the water inlet and the water source through a water pipe. Pressurized water flow, and the water with a certain pressure is sprayed onto the surface of the article to achieve the effect of cleaning the article.

The above-mentioned handheld pressure washer 100 includes a body 110, the body 110 includes a spray part and a hand-held part, and the hand-held part is arranged at one end of the spray part. In this embodiment, the hand-held part is a handle for holding, and its shape is roughly Similar to the handle of a gun, the size is about 10 cm, suitable for holding with one hand. Moreover, the center of the entire handheld pressure washer 100 is located at the position of the handle, and when the user holds the handle with one hand, the entire handheld pressure washer 100 can be grasped. Of course, the handle portion can also be a D-shaped handle, which is not limited in the present invention.

Specifically, the above-mentioned body 110 includes a fluid input end 111 and a fluid output end 112, the fluid input end 111 is generally arranged at the bottom end of the above-mentioned hand-held part, and the fluid output end 112 is arranged at the end of the spray part away from the hand-held part, which is convenient for operation. The operator operates the handheld pressure washer 100 to spray water outwards.

The above-mentioned hand-held pressure washer 100 also includes a diaphragm pump 120, the diaphragm pump 120 is arranged in the body 110, specifically, the diaphragm pump 120 can be arranged in the injection part of the body 110, as shown in Figure 2 and Figure 3, the diaphragm The pump 120 includes a driving part 121, a first cavity 122 and a first diaphragm 123. The two ends of the first cavity 122 respectively have a first liquid inlet 1221 and a first liquid outlet 1222. The water entering the diaphragm pump 120 passes through the The first liquid inlet 1221 enters the first cavity 122 and flows out of the first cavity 122 through the first liquid outlet 1222 . The first diaphragm 123 is arranged on one side of the first cavity 122, and the first diaphragm 123 extends from the first liquid inlet 1221 to the first liquid outlet 1222, and the first diaphragm 123 can be reciprocated by The movement changes the volume of the first cavity 122 , thereby changing the water pressure in the first cavity 122 .

In more detail, in order to ensure that the water entering the first cavity 122 continuously flows out from the first liquid outlet 1222, check valves are provided at the first liquid inlet 1221 and the second liquid outlet 1222 respectively. 124, the one-way valve 124 arranged at the first liquid inlet 1221 only allows water flow into the first cavity 122 from the outside, and does not allow the water flow in the first cavity 122 to flow outward from the first liquid inlet 1221 flow out. On the contrary, the one-way valve 124 provided at the first liquid outlet 1222 only allows the water flow in the first cavity 122 to flow out from the first liquid outlet 1222, and does not allow the water flow outside the first cavity 122 to flow out from the first outlet. The liquid port 1222 flows into the first cavity 122 .

The driving part 121 is used to drive the first diaphragm 123 to move, specifically, the driving part 121 includes a motor 1211 and an eccentric wheel 1212, the motor 1211 drives the eccentric wheel 1212 to rotate, and one end of a bearing abuts against the edge of the eccentric wheel 1212 , while the other end of the bearing abuts against one side of the first diaphragm. In this way, the eccentric wheel 1212 drives the first diaphragm 123 to reciprocate through the bearing, thereby continuously changing the pressure of the water in the first cavity 122 .

The work engineering of above-mentioned diaphragm pump 120 is:

The water flows into the body 110 of the hand-held pressure washer 100 from the above-mentioned fluid input port 111 , and after entering the body 110 , the water flows through the diaphragm pump 120 arranged in the body 110 . Specifically, water flows into the first cavity 122 through the first liquid inlet 1221 .

At this time, the above-mentioned driving part 121 drives the eccentric wheel 1212 to rotate through the motor 1211, and then the eccentric wheel 1212 drives the above-mentioned first diaphragm 123 to reciprocate through the bearing, and the first diaphragm 123 is arranged on one side of the above-mentioned first cavity 122, In this way, the motor 1211 drives the above-mentioned first diaphragm 123 to move through the eccentric wheel 1212 , so that the first diaphragm 123 changes the volume of the first cavity 122 .

The driving part 121 drives the first diaphragm 123 to reciprocate. When the first diaphragm 123 moves opposite to the direction where the first cavity 122 is located, the first diaphragm 123 is in a state of expanding the volume of the first cavity 122, thus Originally in the first cavity 122, the instantaneous pressure in the first cavity becomes smaller due to the increase in volume, thereby forcing the external water flow of the first cavity 122 to flow into the first cavity 122, because the one-way valve 124 has a one-way direction of fluid. At this time, the first liquid outlet 1222 of the first cavity 122 is equivalent to a closed state, and the first liquid inlet 1221 is equivalent to an open state, and the water flow cannot flow into the first liquid outlet 1222 from the first liquid outlet 1222. In the first cavity 122 , the water outside the first cavity 122 flows into the first cavity 122 through the first liquid inlet 1221 due to the pressure reduction inside the first cavity 122 .

When the first diaphragm 123 moves toward the direction where the first cavity 122 is located, the first diaphragm 123 is in a state of compressing the volume of the first cavity 122, so that the water originally in the first cavity 122 is compressed by the first cavity. The space of 122 becomes smaller and the water pressure increases, and because the first liquid inlet 1221 has a one-way valve, and the one-way valve 124 has the one-way conductivity of fluid, the first cavity of the first cavity 122 at this time The liquid inlet 1221 is equivalent to being in a closed state, and the first liquid outlet 1222 is in an open state, the water flow cannot flow out from the first liquid inlet 1221 to the outside of the first chamber, and the water flow that is compressed and increased in pressure passes through the first outlet. The liquid port 1222 flows out of the first cavity 122 to obtain a relatively high water flow pressure, and flows out to the outside of the handheld pressure washer through the fluid output port 112 .

The material of the above-mentioned first diaphragm 123 may be chloroprene rubber, fluorine rubber or nitrile rubber and the like.

The above-mentioned driving part 121 also includes a speed regulating switch (not shown in the figure), which can be electrically connected with the motor 1211, and is used to control the pressure of the output liquid flow of the diaphragm pump by changing the speed of the motor.

The driving part 121 also includes a control switch (not shown in the figure), which can be electrically connected to the motor 1211 and can control the motor to work or stop.

The hand-held pressure washer 100 also includes a power supply unit 130, which is electrically connected to the driving unit 121, and used to provide the driving unit with a DC driving voltage of 0-40V.

Of course, the handheld pressure washer 100 in this embodiment can also spray any other fluids (for example, oil, solvent, etc.) in addition to water flow, which is not limited by the present invention.

The hand-held pressure washer 100 disclosed in this embodiment uses a diaphragm pump to pressurize the water flow entering the hand-held pressure washer 100. Compared with the traditional plunger pump, the diaphragm pump 120 has a relatively simple structure and a small volume. The portability of the handheld pressure washer 100 is improved, which is convenient for operators to carry and perform daily operations.

As shown in Figure 1 and Figure 4-5, the second preferred embodiment of the utility model discloses a hand-held pressure washer 100, the hand-held pressure washer 100 can connect the water inlet and the water source through the water pipe, and the water flows through The hand-held pressure washer 100 sprays water with a certain pressure outward, and sprays the water with a certain pressure onto the surface of the article to achieve the effect of cleaning the article.

The above hand-held pressure washer 100 also includes a diaphragm pump 220, the diaphragm pump 220 is arranged in the body 110, specifically, the diaphragm pump 220 can be arranged in the injection part of the body 110, as shown in Figure 4 and Figure 5, the diaphragm The pump 220 includes a driving part 221, a first cavity 222, a first diaphragm 223, a second cavity 224, and a second diaphragm 225. The two ends of the first cavity 222 respectively have a first liquid inlet 2221 and a first liquid outlet. The water entering the diaphragm pump 220 enters the first cavity 222 through the first liquid inlet 2221 , and flows out of the first cavity 222 through the first liquid outlet 2222 . The first diaphragm 223 is arranged on one side of the first cavity 222, and the first diaphragm 223 usually extends from the first liquid inlet 2221 to the first liquid outlet 2222. The first diaphragm 223 can be used as The reciprocating movement changes the volume of the first cavity 222 , thereby changing the water pressure in the first cavity 222 .

Similarly, the two ends of the second cavity 224 respectively have a second liquid inlet 2241 and a second liquid outlet 2242, the water flow entering the diaphragm pump 220 enters the second cavity 224 through the second liquid inlet 2241, and The liquid flows out of the second cavity 224 through the second liquid outlet 2242 . The second diaphragm 225 is arranged on one side of the second cavity 224, and the second diaphragm 225 usually extends from the second liquid inlet 2241 to the second liquid outlet 2242. The second diaphragm 225 can be used as The reciprocating movement changes the volume of the second cavity 224 , thereby changing the water pressure in the second cavity 224 .

In more detail, in order to ensure that the water entering the first cavity 222 continuously flows out from the first liquid outlet 2222, check valves are provided at the first liquid inlet 2221 and the second liquid outlet 2222 respectively. 226, the one-way valve 226 arranged at the first liquid inlet 2221 only allows water to enter the first cavity 222 from the outside, and does not allow the water in the first cavity 222 to flow outward from the first liquid inlet 2221 flow out. On the contrary, the one-way valve 226 arranged at the first liquid outlet 2222 only allows the water flow in the first cavity 222 to flow out from the first liquid outlet 2222, and does not allow the water flow outside the first cavity 222 to flow out from the first outlet. The liquid port 2222 flows into the first cavity 222 .

Similarly, in order to ensure that the water flowing into the second cavity 224 continuously flows out from the second liquid outlet 12 port 2242, a one-way valve 227 is provided at the second liquid inlet 2241 and the second liquid outlet 2242, respectively. The one-way valve 227 provided at the second liquid inlet 2241 only allows water to enter the second cavity 224 from the outside, but does not allow the water in the second cavity 242 to flow out from the second liquid inlet 2241 . On the contrary, the one-way valve 227 arranged at the second liquid outlet 2242 only allows the water flow in the second cavity 224 to flow out from the second liquid outlet 2242, and does not allow the water flow outside the second cavity 224 to flow out from the second outlet. The liquid port 2242 flows into the second cavity 224 .

The driving part 221 is used to drive the first diaphragm 223 and the second diaphragm 225 to move. Specifically, the driving part 221 includes a motor 2211 and an eccentric wheel 2212. The motor 2211 rotates by driving the eccentric wheel 2212. One end of the two bearings is against the The edge of the above-mentioned eccentric wheel 2212 and the other end of the bearing abut against one side of the first diaphragm 223 and the second diaphragm 225 respectively. In this way, the eccentric wheel 1212 simultaneously drives the first diaphragm 223 and the second diaphragm 225 to reciprocate through the bearing, thereby continuously changing the volume and water pressure in the first cavity 222 and the second cavity 224 .

The work engineering of above-mentioned diaphragm pump 220 is:

The water flow enters the body 110 of the hand-held pressure washer 100 from the above-mentioned fluid input port 111. After the water flow enters the body 110, it passes through the diaphragm pump 220 arranged in the body 110, and the water flow is pressurized by the diaphragm pump 220.

Specifically, the water flows into the first cavity 222 and the second cavity 224 respectively from the first liquid inlet 2221 and the second liquid inlet 2222 . The driving part 221 drives the eccentric wheel 2212 to rotate through the motor 2211, so that the eccentric wheel 2212 drives the first diaphragm 223 and the second diaphragm 225 to reciprocate through the bearing, and the first diaphragm 223 is arranged in one of the first cavity 222 In this way, the motor 2211 drives the above-mentioned first diaphragm 223 to move through the eccentric wheel 2212, so that the first diaphragm 223 changes the volume of the first cavity 222. Similarly, the second diaphragm 225 is arranged on one side of the above-mentioned second cavity 224. In this way, the motor 2211 drives the second diaphragm 225 to move through the eccentric wheel 2212 , so that the second diaphragm 225 changes the volume of the second cavity 224 .

The driving part 221 drives the first diaphragm 223 and the second diaphragm 225 to reciprocate at the same time. The working method of changing the water flow pressure in the first cavity 222 through the reciprocating movement of the first diaphragm 223 has been described in detail in the first embodiment of the utility model, so the utility model will not repeat it here. The second diaphragm 225 works by changing the pressure in the second cavity 224 .

The driving part 221 drives the first diaphragm 223 to move toward the direction where the first cavity 222 is located, and simultaneously moves the second diaphragm 225 to the direction opposite to the direction where the second cavity 222 is located.

When the second diaphragm 225 moved to the opposite direction to the direction where the second cavity 224 was located, the second diaphragm 225 was in the state of expanding the volume of the second cavity 224, so that it was originally in the second cavity 224 due to the increased volume. Make the instantaneous pressure in the second cavity 224 smaller, and then force the external water flow of the second cavity 224 to flow into the second cavity 224. Since the one-way valve 226 has the one-way conductivity of the fluid, the second cavity at this time The second liquid outlet 2242 of 224 is equivalent to being in a closed state, and the water flow cannot flow into the second cavity 224 from the second liquid outlet 2242, and the second liquid inlet 2241 is equivalent to being in an open state, and the second cavity The water outside 224 flows into the second cavity 224 through the second liquid inlet 2241 due to the pressure reduction inside the second cavity 224 .

When the second diaphragm 225 moves toward the direction where the second cavity 224 is located, the second diaphragm 225 is in a state of compressing the volume of the second cavity 224, so that the water originally in the second cavity 224 is compressed by the second cavity. The space of 224 becomes smaller and the water pressure is increased, and because the second liquid inlet 2241 has the check valve 226, and the check valve 224 has the one-way conductivity of the fluid, the second cavity 224 at this time The second liquid inlet 2241 is equivalent to being in a closed state, and the second liquid outlet 2242 is in an open state, and the water flow cannot flow out from the first liquid inlet 2241 to the outside of the first chamber, and the compressed and increased pressure of the water flow passes through the second liquid outlet. The liquid port 2242 flows out of the second cavity 224 to obtain a relatively high water flow pressure, and flows out to the outside of the handheld pressure washer through the fluid output port 112 .

In the above-mentioned diaphragm pump 220, the driving part 221 changes the volumes in the first cavity 222 and the second cavity 224 respectively through the first diaphragm 223 and the second diaphragm 225, thereby increasing the water outlet pressure of the hand-held pressure washer 100 , and the driving part 221 simultaneously drives the first cavity 222 and the second cavity 224 to work, which increases the working efficiency of the diaphragm pump 220 .

The material of the first diaphragm 223 and the second diaphragm 225 may be neoprene, fluorine rubber or nitrile rubber.

The driving part 221 also includes a speed regulating switch (not shown in the figure), which can be electrically connected with the motor 2211, and is used to control the pressure of the output liquid flow of the diaphragm pump by changing the speed of the motor.

The driving part 221 also includes a control switch (not shown in the figure), which can be electrically connected to the motor 2211 and can control the motor to work or stop.

The hand-held pressure washer 100 also includes a power supply unit 130, which is electrically connected to the driving unit 221, and used to provide the driving unit with a DC driving voltage of 0-40V.

Of course, the handheld pressure washer 100 in this embodiment can also spray any other fluids (for example, oil, solvent, etc.) in addition to water flow, which is not limited by the present invention.

The hand-held pressure washer 100 disclosed in this embodiment uses a diaphragm pump to pressurize the water flow entering the hand-held pressure washer 100. Compared with the traditional plunger pump, the diaphragm pump 220 has a relatively simple structure and a small volume. The portability of the handheld pressure washer 100 is improved, which is convenient for operators to carry and perform daily operations.

The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

The above-mentioned embodiments only express several implementation modes of the utility model, and the description thereof is relatively specific and detailed, but it should not be understood as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (10)

1. A hand-held pressure washer, characterized in that it comprises: The body has a fluid input end and a fluid output end for spraying fluid outward, and the fluid input end is connected to a liquid outlet source; And a diaphragm pump, arranged in the body, used to increase the output pressure of the liquid flow in the body. 2. The handheld pressure washer according to claim 1, wherein the diaphragm pump has: The first cavity has a first liquid inlet and a first liquid outlet opposite to the first liquid inlet; The first diaphragm is arranged on one side of the first cavity, and seals the first cavity, and compresses or expands the volume of the first cavity by moving; and a driving part for reciprocating the first diaphragm. 3. The handheld pressure washer according to claim 2, wherein the diaphragm pump further comprises: At least two one-way valves are respectively arranged at the first liquid inlet and the first liquid outlet of the first cavity, and are used to make the fluid flow in one direction. 4. The hand-held pressure washer according to claim 2, wherein the material of the first diaphragm is neoprene, fluororubber or nitrile rubber. 5. The hand-held pressure washer according to claim 2, wherein the driving part comprises: motor; and an eccentric driven by the motor and driving the first diaphragm. 6. The handheld pressure washer according to claim 2, wherein the diaphragm pump further comprises: The second cavity is arranged side by side and opposite to the first cavity, and has a second liquid inlet and a second liquid outlet opposite to the second liquid inlet; a second diaphragm, disposed on one side of the second cavity and opposite to the first diaphragm, for compressing or expanding the volume of the second cavity by movement; The driving part reciprocates the second diaphragm while reciprocating the first diaphragm. 7. The handheld pressure washer according to claim 5, wherein the diaphragm pump further comprises: The speed regulating switch is electrically connected with the motor and used to adjust the speed of the motor. 8. The handheld pressure washer according to claim 5, wherein the diaphragm pump further comprises: The control switch is electrically connected with the motor and is used to turn on or off the motor. 9. The handheld pressure washer according to claim 2, further comprising: The power supply part is electrically connected with the driving part, and is used for providing a DC voltage to the driving part. 10. The hand-held pressure washer according to claim 9, wherein the power supply unit provides a driving voltage of 5-40V to the driving unit.