Water-cooling driving assembly of cleaning equipment and cleaning equipment

Abstract

The utility model provides a water-cooling driving assembly of cleaning equipment and the cleaning equipment. The water-cooling driving assembly of the cleaning equipment comprises a first shell, a second shell, a water inlet and a water outlet. The first shell and the second shell are detachably and tightly connected in the axial direction; a water spraying waterway channel is formed in the second shell; two ends of the water spraying waterway channel are communicated with the water inlet and the water outlet; a water cooling channel is formed in the first shell and the second shell in the axial direction, and the two ends of the water cooling channel communicate with the water inlet and the water outlet. The water cooling channel is configured to be capable of circulating cooling water to absorb heat in the first shell and the second shell, and the cooling water absorbing heat and cooling water in the water spraying waterway channel are jointly sprayed out from the water outlet. According to the cleaning equipment, the water cooling channels are formed in the first shell and the second shell, heat dissipated when the gear box and the bearing work can be effectively absorbed, heat dissipation is effectively conducted on the cleaning equipment, and the working efficiency of the cleaning equipment is guaranteed.

Description

Technical Field

[0001] The present disclosure relates to the field of cleaning technologies, and particularly to a water-cooled drive assembly of a cleaning device and a cleaning device. Background Art

[0002] As a cleaning tool, a high-pressure cleaning device has a very wide range of uses and can be used to clean cars, floors, walls, roofs, etc. Its main principle is that an electric motor drives a high-pressure water pump to work, increasing the pressure of low-pressure tap water to the high pressure required by the customer through the high-pressure water pump, and spraying the high-pressure water through a high-pressure water outlet, a high-pressure hose, and a spray gun.

[0003] For example, Chinese Patent Application (CN219624594U) discloses a handheld power tool and an electric water gun. The handheld power tool includes a handle and a battery mounting portion for mounting a power supply assembly. The battery mounting portion is arranged on the front side of the handle. The bottom of the handle has a first contact portion, and the bottom of the battery mounting portion or the bottom of the power supply assembly has a second contact portion. The handheld power tool can be supported on a tabletop through the first contact portion and the second contact portion. The handheld power tool can specifically be an electric water gun. However, both the pump body and the gearbox of this electric water gun are made of metal structures. When the motor in the electric water gun drives, and when the gearbox and the bearing work, especially the bearing will emit a large amount of heat. Although the metal structure is heat-resistant and has fast heat dissipation, the cost is high. If the materials of the pump body and the gearbox are changed to plastics or materials with relatively poor heat resistance compared to metals, although the cost is low, they are not heat-resistant and have slow heat dissipation. If effective cooling cannot be carried out, it will seriously affect the service life of the motor and the pump body and the working efficiency of the whole machine. Summary of the Utility Model

[0004] The present disclosure provides a water-cooled drive assembly of a cleaning device and a cleaning device to at least solve one of the technical problems existing in the prior art.

[0005] According to a first aspect of the present disclosure, there is provided a water-cooled drive assembly of a cleaning device, including a first housing, a second housing, a water inlet, and a water outlet; the first housing and the second housing are detachably and closely connected along the axial direction; a water spraying water channel is formed inside the second housing, and two ends of the water spraying water channel are respectively communicated with the water inlet and the water outlet; a water-cooling channel is formed inside the first housing and the second housing along the axial direction, and two ends of the water-cooling channel are respectively connected to the water inlet and the water outlet. The water-cooling channel is configured to be able to circulate cooling water to absorb the heat in the first housing and the second housing, and spray the cooled cooling water together with the cooling water in the water spraying water channel from the water outlet.

[0006] In an implementable embodiment, the water-cooling channel includes:

[0007] The first water-cooling inlet channel is formed within the second housing, and the first end of the first water-cooling inlet channel communicates with the water inlet. The first water-cooling inlet channel is configured to allow the circulation of cooling water to dissipate heat from the second housing.

[0008] The second water-cooling inlet channel is formed within the first housing or at the tightly connected position between the first housing and the second housing; the second water-cooling inlet channel is connected to the second end of the first water-cooling inlet channel, and the second water-cooling inlet channel is configured to allow the circulation of cooling water to dissipate heat from the first housing.

[0009] The water-cooling drainage channel is formed within the second housing. The first end of the water-cooling drainage channel communicates with the water outlet, and the second end communicates with the second water-cooling inlet channel. The water-cooling drainage channel is configured to discharge the cooling water that has absorbed heat.

[0010] In an implementable embodiment, the first water-cooling inlet channel and the water-cooling drainage channel are formed on the same side within the second housing.

[0011] In an implementable embodiment, the second water-cooling inlet channel is formed along the circumferential direction of the first housing within the first housing;

[0012] Or, a sealed sandwich cavity is formed at the tightly connected position between the first housing and the second housing, and the sandwich cavity forms the second water-cooling inlet channel.

[0013] In an implementable embodiment, the second housing further includes:

[0014] An inlet chamber that communicates with the water inlet and the first end of the first water-cooling inlet channel, and a first one-way valve is installed in the inlet chamber;

[0015] An outlet chamber that communicates with the inlet chamber and the first end of the water-cooling drainage channel. A second one-way valve is installed in the outlet chamber, and the second one-way valve and the first one-way valve are configured to prevent reverse flow;

[0016] A confluence chamber that communicates with the inlet chamber, the outlet chamber, and the water outlet. A third one-way valve and a fourth one-way valve that allow water to flow in opposite directions are installed at both ends of the confluence chamber; wherein, the first one-way valve and the third one-way valve close to the first one-way valve are configured to allow water to flow in the same direction, and the second one-way valve and the fourth one-way valve close to the second one-way valve are configured to allow water to flow in the same direction.

[0017] In an implementable embodiment, the cross-sectional area of the inlet chamber is equal to the sum of the cross-sectional areas of the outlet chamber and the water-cooling drainage channel.

[0018] In one implementable embodiment, the water outlet chamber and the water inlet chamber are arranged vertically one above the other, and the centerlines of the one-way valves installed inside them are on the same straight line.

[0019] In one implementable embodiment, the water inlet chamber is perpendicular to the first water-cooled inlet channel;

[0020] The water outlet chamber is perpendicular to the water-cooled drain channel;

[0021] The confluence chamber is parallel to the water inlet chamber and the water outlet chamber.

[0022] In one implementable embodiment, the second housing is an integrally formed structure composed of a water inlet chamber, a water outlet chamber, a confluence chamber, a first water-cooled inlet channel, and a water-cooled drain channel.

[0023] According to the second aspect of the present disclosure, there is also provided a cleaning device including the water-cooled drive assembly in any one of the implementable embodiments in the first aspect above.

[0024] Compared with the prior art, the advantages of the present application are as follows: 1) By forming a water-cooled channel in the first housing and the second housing, the cleaning device of the present application can effectively absorb the heat dissipated when the gearbox and bearings in the housing work, effectively dissipate the heat of the cleaning device, and ensure the working efficiency of the cleaning device. 2) By arranging the water-cooled channel, the cleaning device of the present application can effectively dissipate the heat generated by the gearbox and bearings during the operation of the device, so that the second housing and the gearbox can be made of plastic materials or materials with relatively poor heat resistance to metal, thereby reducing the production cost of the cleaning device. 3) In the cleaning device of the present application, the water-cooled channel is formed along the axial direction of the first housing and the second housing, absorbing the heat in the first housing and the second housing to the greatest extent, improving the heat dissipation efficiency, and extending the service life of the device.

[0025] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present disclosure, nor is it used to limit the scope of the present disclosure. Other features of the present disclosure will become easily understandable through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] By referring to the accompanying drawings and reading the following detailed description, the above and other objects, features, and advantages of the exemplary embodiments of the present disclosure will become easily understandable. In the drawings, several embodiments of the present disclosure are shown in an exemplary and non-limiting manner, wherein:

[0027] In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.

[0028] Figure 1 The structural schematic diagram of the cleaning device according to the embodiment of the present disclosure is shownFigure 1 ;

[0029] Figure 2 Shows the structural schematic of the cleaning device according to an embodiment of the present disclosure Figure 2 ;

[0030] Figure 3 Shows the structural schematic of the main body part of the cleaning device according to an embodiment of the present disclosure Figure 1 ;

[0031] Figure 4 Shows the structural schematic of the main body part of the cleaning device according to an embodiment of the present disclosure Figure 2 ;

[0032] Figure 5 Shows Figure 3 the explosion schematic of Figure 1 ;

[0033] Figure 6 Shows Figure 3 the explosion schematic of Figure 2 ;

[0034] Figure 7 Shows Figure 3 the explosion schematic of Figure 3 ;

[0035] Figure 8 Shows Figure 3 the sectional schematic of Figure 1 ;

[0036] Figure 9 Shows Figure 3 the sectional schematic of Figure 2 ;

[0037] Figure 10 Shows the sectional schematic of the second housing according to an embodiment of the present disclosure Figure 1 ;

[0038] Figure 11 Shows the sectional schematic of the second housing according to an embodiment of the present disclosure Figure 2 ;

[0039] Figure 12 Shows the schematic diagram of the water flow direction in the second housing according to an embodiment of the present disclosure;

[0040] Figure 13 Shows the sectional schematic of the second housing according to an embodiment of the present disclosure Figure 3 ;

[0041] Figure 14 Shows the sectional schematic of the second housing according to an embodiment of the present disclosure Figure 4 ;

[0042] Figure 15Shows a cross-sectional schematic view of the second housing according to an embodiment of the present disclosure Figure 5 .

[0043] Description of reference numerals in the figure: 1 - first housing, 2 - second housing, 3 - water inlet, 4 - water outlet, 5 - water cooling channel, 6 - motor, 7 - reduction assembly, 8 - pump body assembly, 9 - water inlet pipe, 10 - water outlet pipe, 11 - gearbox, 12 - eccentric wheel, 13 - bearing, 14 - water pump, 15 - water spraying water channel, 16 - movable plug, 17 - piston cavity, 18 - first water cooling inlet channel, 19 - second water cooling inlet channel, 20 - water cooling drain channel, 21 - sandwich cavity, 22 - motor mounting seat, 23 - water inlet chamber, 24 - first one-way valve, 25 - water outlet chamber, 26 - second one-way valve, 27 - confluence chamber, 28 - third one-way valve, 29 - fourth one-way valve, 30 - first water flow channel, 31 - second water flow channel, 32 - water inlet channel, 33 - water guiding channel, 34 - movable channel, 35 - valve rod, 36 - second housing body, 37 - first cover body, 38 - second cover body. Detailed implementation manners

[0044] To make the objectives, features, and advantages of the present disclosure more obvious and understandable, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present disclosure.

[0045] According to an embodiment of the present disclosure, the present utility model provides a cleaning device. As Figures 1 - 15 shown, a cleaning device includes a first housing 1, a second housing 2, a water inlet 3, and a water outlet 4; the first housing 1 and the second housing 2 are detachably and tightly connected along the axial direction, a water spraying water channel 15 is formed inside the second housing 2, and both ends of the water spraying water channel 15 are respectively communicated with the water inlet 3 and the water outlet 4; a water cooling channel 5 is formed inside the first housing 1 and the second housing 2 along the axial direction, both ends of the water cooling channel 5 are respectively connected to the water inlet 3 and the water outlet 4, and the water cooling channel 5 is configured to be able to circulate cooling water to absorb the heat in the first housing 1 and the second housing 2, and spray the cooled cooling water together with the cooling water in the water spraying water channel 15 from the water outlet 4.

[0046] As Figures 1 - 9As shown, the existing cleaning equipment mainly includes a motor 6, a reduction assembly 7 and a pump assembly 8 arranged in sequence along the power transmission direction, and the cleaning equipment also includes a water inlet pipe 9 and a water outlet pipe 10. The reduction assembly 7 includes a first housing 1, a gear box 11, an eccentric wheel 12 and a bearing 13, and the gear box 11, the eccentric wheel 12 and the bearing 13 are installed in the first housing 1. The pump assembly 8 includes a second housing 2 and a water pump 14, the water pump 14 is installed in the second housing 2 and the pump housing of the water pump 14 is co-arranged with the second housing 2 (that is, a piston cavity 17 is formed in the second housing 2, the pump housing of the water pump 14 is co-arranged with the second housing 2, and the main body of the water pump is installed in the piston cavity 17 of the second housing); the water inlet pipe 9 has a water inlet 3 and the water inlet pipe 9 is connected to the second housing 2; the water outlet pipe 10 has a water outlet 4 and the water outlet pipe 10 is connected to the second housing 2. The first shell 1 and the second shell 2 are detachably and tightly connected along the axial direction. A water spraying waterway channel 15 is formed in the second shell 2. Both ends of the water spraying waterway channel 15 are connected to the water inlet 3 and the water outlet 4 respectively.

[0047] The output shaft of the motor 6 is connected to the movable plug 16 of the water pump through the gear box 11, the eccentric wheel 12, and the bearing 13, and the water is transported by generating pressure by driving the movable plug 16 to reciprocate up and down. Specifically, when the motor starts to rotate, the transmission drives the movable plug 16 to start moving. When the movable plug moves to the first position (for example, when the movable plug moves upward), a low-pressure area is formed in the second shell, and the water at the water inlet 3 of the water inlet pipe is sucked into the second shell 2. When the movable plug 16 moves to the second position (for example, when the movable plug moves downward), a high-pressure area is formed in the second shell, and the liquid is compressed and discharged through the water spray waterway channel 15 and the water outlet 4 of the water outlet pipe.

[0048] Therefore, when the gearbox 11 and the bearing 13 are driven by the motor 6 to spray water, the gearbox 11 and the bearing 13 will emit a lot of heat, especially the bearing 13. Therefore, in order to reduce the production cost, the material of the second housing 2 and the gearbox 11 is changed to plastic or a material with poor heat resistance relative to metal, but the second housing 2, the gearbox 11 such plastic parts (or materials with poor heat resistance relative to metal) are not resistant to high temperature and have slow heat dissipation. If they cannot be effectively cooled, the life of the motor and the pump body and the working efficiency of the whole machine will be seriously affected. Based on this, the present application further improves the second housing 2 and the first housing 1 of the existing cleaning equipment, and a water cooling channel 5 is set across the first housing 1 and the second housing 2, and the cooling water is circulated in the water cooling channel 5 for one circle to absorb the heat generated by the gearbox 11 and the bearing 13, and the cooling water that has absorbed the heat is discharged through the water outlet 4.

[0049] In the cleaning equipment of the present application, the material of the first housing 1 is a heat-conducting material, such as plastic or a material with relatively poor heat resistance compared to metal. The first housing 1 can quickly conduct the heat of the gearbox 11 and the bearing 13 to the cooling water in the water-cooling channel 5. Specifically, the heat generated when the gearbox 11 and the bearing 13 work is conducted to the first housing 1 and the second housing 2. Therefore, a water-cooling channel 5 spanning the two is formed in the first housing 1 and the second housing 2. The cooling water in the water-cooling channel 5 absorbs the heat in the first housing 1 and the second housing 2 and is discharged through the water outlet 4. At the same time, the pressurized cooling water that enters the second housing 2 and flows along the water spraying water channel 15 is also discharged from the water outlet 4. Thus, the purpose of dissipating heat from the gearbox 11, the bearing 13, the first housing 1 and the second housing 2 is achieved, and at the same time, the water spraying work of the equipment can be carried out, thereby reducing the production cost of the cleaning equipment and solving the problem of overheating of plastic parts.

[0050] In one embodiment, as Figures 10 - 13 shown, the water-cooling channel 5 includes:

[0051] A first water-cooling inlet channel 18, formed in the second housing 2 and the first end of the first water-cooling inlet channel 18 is communicated with the water inlet 3. The first water-cooling inlet channel 18 is configured to be able to circulate cooling water to dissipate heat from the second housing 2;

[0052] A second water-cooling inlet channel 19, formed in the first housing 1 or formed at the tightly connected position of the first housing 1 and the second housing 2; the second water-cooling inlet channel 19 is connected to the second end of the first water-cooling inlet channel 18. The second water-cooling inlet channel 19 is configured to be able to circulate cooling water to dissipate heat from the first housing 1;

[0053] A water-cooling drainage channel 20, formed in the second housing 2 and independently arranged from the first water-cooling inlet channel 18. The first end of the water-cooling drainage channel 20 is communicated with the water outlet 4, and the second end is communicated with the second water-cooling inlet channel 19. The water-cooling drainage channel 20 is configured to be able to discharge the heat-absorbed cooling water.

[0054] In the present application, the water-cooling channel 5 is divided into three parts, namely the first water-cooling inlet channel 18, the second water-cooling inlet channel 19 and the water-cooling drainage channel 20. The cooling water flows through the first / second water-cooling inlet channel, absorbs the heat in the second housing 2 and the first housing 1, and then is discharged from the water-cooling drainage channel 20 to the water outlet 4. Therefore, dividing the water-cooling channel into three parts and forming them in the first housing and the second housing respectively makes it easy to manufacture the first housing 1 and the second housing 2 during casting, and these two housings are cast separately. Thus, when it is necessary to form the water-cooling channel, only by tightly connecting the two, the water-cooling channel can be completed. It is simple and convenient, improving the manufacturing efficiency of the first housing and the second housing.

[0055] Further, as Figure 11 shown, for example, the first water-cooling inlet channel 18 and the water-cooling drain channel 20 are formed on the same side within the second housing 2. In this embodiment, the first water-cooling inlet channel 18 and the water-cooling drain channel 20 are arranged on the same side, which is convenient for processing within the second housing 2, and prolongs the flow path of the cooling water, improving the heat dissipation efficiency of the first housing, the second housing, the gearbox, and the bearings.

[0056] For example, the cross-sectional areas of the first water-cooling inlet channel 18 and the water-cooling drain channel 20 are substantially the same, and the first water-cooling inlet channel 18 and the water-cooling drain channel 20 are arranged in an L shape within the second housing 2. On the one hand, it is convenient for processing, and on the other hand, it is convenient for the layout of the second housing and prolongs the flow path of the cooling water, increasing the heat dissipation efficiency of the housing.

[0057] For example, the second water-cooling inlet channel 19 is formed within the first housing 1 along the circumferential direction of the first housing 1;

[0058] Or, it can also be, as Figures 8 - 9 shown, a sealed sandwich cavity 21 is formed at the tightly connected position of the first housing 1 and the second housing 2, and the sandwich cavity 21 is formed as the second water-cooling inlet channel 19.

[0059] The second water-cooling inlet channel 19 is used to dissipate heat from the first housing 1, so the second water-cooling inlet channel 19 can be opened along the circumferential direction of the first housing to communicate with the first water-cooling inlet channel and the water-cooling drain channel. Or when casting the first housing 1, an annular cavity can be reserved, saving the material of the first housing 1 and avoiding subsequent processing. Thus, when the first housing 1 and the second housing 2 are axially and tightly connected, an annular and sealed sandwich cavity 21 is formed at the tightly connected position of the first housing and the second housing, and the sandwich cavity 21 forms the second water-cooling inlet channel 19.

[0060] In this embodiment, it is selected to form a sealed sandwich cavity at the tightly connected position of the first housing 1 and the second housing 2, and the sandwich cavity is formed as the second water-cooling inlet channel, and this method is easier to process.

[0061] As Figures 8 - 13As shown, a gearbox 11 is installed in the first housing 1. The first housing 1 is accommodated at the first end of the second housing 2. An electric motor mounting base 22 for accommodating the first housing 1 is provided outside the first housing 1. The electric motor mounting base 22 is used for installing the electric motor 6. The electric motor mounting base 22 is fixedly connected to the first end of the second housing 2 through threaded parts such as screws and bolts, thereby restricting and fixing the first housing 1 between the electric motor mounting base 22 and the second housing 2. Among them, the first housing 1 and the second housing 2 are hermetically connected through a sealing ring, and a sealed and annular sandwich cavity 21 is constructed therebetween. This sandwich cavity forms the second water-cooling inlet channel 19. Therefore, the cooling water flowing out from the first water-cooling inlet channel 18 and entering the second water-cooling inlet channel 19 will travel around the sandwich cavity 21 and then be discharged from the water-cooling drainage channel 20. The cooling water in the second water-cooling inlet channel 19 will absorb the heat in the first housing 1 and the second housing 2 in direct contact, and further absorb the heat generated by the gearbox 11 and the bearing 13, thereby achieving the purpose of heat dissipation.

[0062] Among them, as Figures 10 - 13 shown, specifically, the second housing 2 further includes:

[0063] An inlet chamber 23, which is communicated with the water inlet 3 and the first end of the first water-cooling inlet channel 18. A first one-way valve 24 is installed in the inlet chamber 23;

[0064] An outlet chamber 25, which is communicated with the inlet chamber 23 and the first end of the water-cooling drainage channel 20. A second one-way valve 26 is installed in the outlet chamber 25, and the second one-way valve 26 and the first one-way valve 24 are configured to prevent reverse flow;

[0065] A confluence chamber 27, which is communicated with the inlet chamber 23, the outlet chamber 25 and the water outlet 4. Third one-way valves 28 and fourth one-way valves 29 that allow water to flow in opposite directions are installed at both ends of the confluence chamber 27; among them, the first one-way valve 24 and the third one-way valve 28 close to the first one-way valve are configured to allow water to flow in the same direction, and the second one-way valve 26 and the fourth one-way valve 29 close to the second one-way valve 26 are configured to allow water to flow in the same direction; a water spraying waterway channel 15 is formed between the inlet chamber 23, the outlet chamber 25 and the confluence chamber 27.

[0066] For example, as Figures 10 - 13 shown, the second one-way valve 26 and the first one-way valve 24 are arranged in reverse, the third one-way valve 28 and the fourth one-way valve 29 are arranged in reverse, the first one-way valve 24 and the third one-way valve 28 are arranged in reverse, and the second one-way valve 26 and the fourth one-way valve 29 are arranged in reverse.

[0067] As Figure 11As shown, the piston chamber 17 formed within the second housing 2 communicates with the water inlet chamber 23, the water outlet chamber 25, and the confluence chamber 27. Therefore, when the cleaning device of the present application is operating specifically, the motor 6 is drivingly connected to the movable plug 16 through the gearbox 11, the eccentric wheel 12, and the bearing 13, driving the movable plug 16 to reciprocate up and down within the piston chamber 17. When the movable plug moves to the first position, a low pressure is formed within the second housing 2, causing cooling water to enter the water inlet chamber 23 from the water inlet 3 at the water inlet pipe. At this time, the first check valve 24 and the second check valve 26 are closed, and the pressures in the water inlet chamber 23 and the water outlet chamber 25 are the same. When the movable plug moves to the second position, a high pressure is formed within the second housing. At this time, a part of the cooling water (designated as the first part of the cooling water) within the water inlet chamber 23 enters the first water-cooled inlet passage 18 and travels along the first water-cooled inlet passage 18 and the second water-cooled inlet passage 19 to absorb the heat within the second housing 2 and the first housing 1. Then, the heat-absorbed first part of the cooling water sequentially passes through the water-cooled drain passage 20, the water outlet chamber 25, and enters the confluence chamber 27; at the same time, the second part of the cooling water within the water inlet chamber 23 enters the confluence chamber 27 through the first check valve 24 and the third check valve 28 of the confluence chamber, and the third part of the cooling water within the water inlet chamber flows towards the water outlet chamber 25 and enters the confluence chamber 27 through the second check valve 26 and the fourth check valve 29. After the confluence chamber 27 collects these three parts of the cooling water, it discharges them to the water outlet pipe 10 and then sprays out from the water outlet 4. The cooling water flow path is as Figure 12 shown.

[0068] Among them, as Figures 8 - 9 , Figures 14 - 15As shown, one end of the water outlet pipe 10 has a water outlet 4. The other end of the water outlet pipe 10 is partitioned into two non-communicating first water flow channels 30 and second water flow channels 31. The two ends of the first water flow channel 30 are respectively communicated with the water outlet chamber 25 and the water outlet 4. The cross-sectional diameter of the first water flow channel 30 is smaller than the cross-sectional diameter of the main body of the water outlet pipe 10. When the cooling water flowing out from the water outlet chamber 25 first enters the first water flow channel 30, due to the relatively narrow cross-sectional diameter of the first water flow channel 30, the speed of the cooling water therein increases, so that it can be ejected from the water outlet at a high speed (similar to the principle of a Laval nozzle). The two ends of the second water flow channel 31 are respectively communicated with the water inlet chamber 23 and the water inlet pipe 9. Among them, the water inlet pipe 9 is arranged perpendicular to the water outlet pipe 10. The water inlet pipe 9 includes a communicating water inlet channel 32, a water guiding channel 33 and a movable channel 34. The valve rod 35 is movably connected to the movable channel 34. At least part of the valve rod 35 is accommodated in the movable channel 34. The water inlet channel 32 is used for conducting the water path with an external water pipe. The water guiding channel 33 is communicated with the water inlet chamber 23 through the second water flow channel 31. By the movement of the valve rod 35 in the movable channel 34, the water guiding channel and the movable channel can be conducted or blocked, so as to realize the connection or disconnection of the external water pipe with the water inlet channel 32, the movable channel 34, the water guiding channel 33 and the water inlet chamber 23.

[0069] In one embodiment, as Figures 10 - 13 shown, the cross-sectional area of the water inlet chamber 23 is equal to the sum of the cross-sectional area of the water outlet chamber 25 and the cross-sectional area of the water-cooled drainage channel 20. In this embodiment, setting the cross-sectional area of the water inlet chamber to be equal to the sum of the cross-sectional area of the water outlet chamber and the cross-sectional area of the water-cooled drainage channel can make the cooling water more easily enter the water-cooled channel for heat absorption work, and also ensure the normal water spraying work of the cleaning equipment.

[0070] For example, further, the water outlet chamber 25 and the water inlet chamber 23 are arranged vertically one above the other, and the center lines of the one-way valves installed inside them are on the same straight line (that is, the center lines of the first one-way valve 24 and the second one-way valve 26 are on the same straight line). The water inlet chamber 23 is arranged perpendicular to the first water-cooled water inlet channel 18; the water outlet chamber 25 is arranged perpendicular to the water-cooled drainage channel 20.

[0071] For example, further, the second housing 2 is an integrally formed structure composed of an inlet chamber 23, an outlet chamber 25, a confluence chamber 27, a first water-cooling inlet passage 18, and a water-cooling drain passage 20. The second housing 2 can be integrally formed by a mold. The integral part is convenient for processing and can effectively maintain the structural strength of the integral part, thereby increasing the service life of the cleaning device. Further still, in order to facilitate the casting of the second housing, the second housing can be divided into three parts. Specifically, the second housing 2 includes a second housing main body 36, a first cover 37, and a second cover 38. The structures of the first cover 37 and the second cover 38 are substantially the same. They are respectively covered on the upper and lower ends of the second housing main body 36, and the first / second cover and the second housing main body 36 are fixedly connected by threaded members to make the three communicate with each other. The water-cooling passage can be formed in the second housing main body 36. The first cover, the second cover, and the second housing main body can be respectively cast and then fixedly connected to form an integral structure, that is, the second housing.

[0072] In this application, the cleaning device is an electric water gun. Preferably, the cleaning device is an electric water gun with a detachable battery pack. The motor 6 is a low-speed motor. Preferably, the rotation speed range of the motor 6 is 1000 r / min - 30000 r / min.

[0073] Preferably, the water pump further includes a transmission mechanism, which is directly connected between the motor and the plunger (movable plug) and is used to convert the rotational motion of the motor into the reciprocating motion of the plunger.

[0074] Preferably, the transmission mechanism is an eccentric mechanism, which is directly connected to the motor and drives the plunger to reciprocate in the receiving chamber (piston chamber) of the pump body.

[0075] Preferably, the transmission mechanism is a crank and connecting rod mechanism, which is directly connected to the motor and drives the plunger to reciprocate in the receiving chamber of the pump body.

[0076] Preferably, the motor is a reciprocating output motor, which is directly connected to the plunger and drives the plunger to reciprocate in the piston chamber.

[0077] Preferably, the number of plungers is one.

[0078] It should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present disclosure, "a plurality of" means two or more unless otherwise specifically defined.

[0079] The orientation or positional relationship indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description,

[0080] instead of indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as a limitation on the present application.

[0081] Unless otherwise clearly defined and limited, the terms "connected", "directly connected", "indirectly connected", "fixedly connected", "installed", "assembled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; the terms "installed", "connected", "fixedly connected" may be directly connected or indirectly connected through an intermediate medium, and may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0082] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0083] In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0084] As mentioned above, it is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered by the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A water-cooled drive assembly for a cleaning device, comprising a first housing, a second housing, a water inlet and a water outlet; the first housing and the second housing are detachably and closely connected along the axial direction; a water spraying waterway channel is formed in the second housing, and two ends of the water spraying waterway channel are respectively communicated with the water inlet and the water outlet; characterized in that: Inside the first housing and the second housing, a water cooling channel is formed along the axial direction. Both ends of the water cooling channel are respectively communicated with a water inlet and a water outlet. The water cooling channel is configured to allow cooling water to flow through to absorb the heat in the first housing and the second housing, and to spray out the cooled water that has absorbed heat together with the cooling water in the water spraying water channel from the water outlet.

2. The water-cooled drive assembly of the cleaning device according to claim 1, wherein: The water cooling channel includes: A first water cooling inlet channel, which is formed inside the second housing and the first end of the first water cooling inlet channel is communicated with the water inlet. The first water cooling inlet channel is configured to allow cooling water to flow through to dissipate heat from the second housing; A second water cooling inlet channel, which is formed inside the first housing or at the tightly connected position of the first housing and the second housing; the second water cooling inlet channel is communicated with the second end of the first water cooling inlet channel, and the second water cooling inlet channel is configured to allow cooling water to flow through to dissipate heat from the first housing; A water cooling drainage channel, which is formed inside the second housing. The first end of the water cooling drainage channel is communicated with the water outlet, and the second end is communicated with the second water cooling inlet channel. The water cooling drainage channel is configured to drain the cooled water that has absorbed heat.

3. The water-cooled drive assembly of the cleaning device according to claim 2, wherein: The first water cooling inlet channel and the water cooling drainage channel are formed on the same side inside the second housing.

4. The water-cooled drive assembly of the cleaning device according to claim 2, characterized in that: The second water cooling inlet channel is formed inside the first housing along the circumferential direction of the first housing; Or, a sealed sandwich cavity is formed at the tightly connected position of the first housing and the second housing, and the sandwich cavity forms the second water cooling inlet channel.

5. The water-cooled drive assembly of the cleaning device according to claim 1 or 2 or 3 or 4, characterized in that: The second housing further includes: A water inlet chamber, which is communicated with the water inlet and the first end of the first water cooling inlet channel. A first one-way valve is installed inside the water inlet chamber; A water outlet chamber, which is communicated with the water inlet chamber and the first end of the water cooling drainage channel. A second one-way valve is installed inside the water outlet chamber, and the second one-way valve and the first one-way valve are configured to prevent reverse flow; A confluence chamber, which is communicated with the water inlet chamber, the water outlet chamber and the water outlet. Third one-way valves and fourth one-way valves that allow water to flow in opposite directions are respectively installed at both ends of the confluence chamber; wherein, the first one-way valve and the third one-way valve close to the first one-way valve are configured to allow water to flow in the same direction, and the second one-way valve and the fourth one-way valve close to the second one-way valve are configured to allow water to flow in the same direction.

6. The water-cooled drive assembly of the cleaning device according to claim 5, characterized in that: The cross-sectional area of the water inlet chamber is equal to the sum of the cross-sectional area of the water outlet chamber and the cross-sectional area of the water cooling drainage channel.

7. The water-cooled drive assembly of the cleaning device according to claim 5, characterized in that: The water outlet chamber and the water inlet chamber are arranged vertically one above the other, and the center lines of the one-way valves installed inside them are on the same straight line.

8. The water-cooled drive assembly of the cleaning device according to claim 5, characterized in that: The water inlet chamber is vertically arranged with respect to the first water cooling inlet channel; The water outlet chamber is vertically arranged with respect to the water cooling drainage channel; The confluence chamber is horizontally arranged with respect to the water inlet chamber and the water outlet chamber.

9. The water-cooled drive assembly of the cleaning device according to claim 5, characterized in that: The second housing is an integrally formed structure composed of a water inlet chamber, a water outlet chamber, a confluence chamber, a first water cooling inlet channel and a water cooling drainage channel.

10. A cleaning device, characterized in that, It includes the water cooling drive assembly according to any one of claims 1-9.

Images