Water conveying structure of cleaning machine

Abstract

According to the water conveying structure of the cleaning machine, the cleaning machine comprises a cleaning machine body and a water tank which are detachably connected, the water conveying structure is used for conveying water in the water tank to the cleaning machine body, and the water conveying structure comprises a water outlet structure which is arranged on the bottom face of the water tank in a protruding mode; the water outlet structure comprises a cover body, a water outlet valve and a water delivery channel, a water inlet is formed in the top end of the water outlet valve, the cover body covers the water outlet valve, a first gap is formed between the cover body and the bottom surface of the water tank, and the water delivery channel is communicated with the first gap and the water inlet; the water inlet structure is arranged on the cleaning machine main body, and the water inlet structure is communicated with the water conveying channel when the water outlet structure is connected with the water inlet structure; one end of the water pumping device is communicated with the water inlet structure. According to the water conveying structure provided by the embodiment of the utility model, when the water inlet is higher than the lowest water level of the water tank, all water in the water tank can be conveyed into the cleaning machine main body, so that water remaining in the water tank is reduced, and the space utilization rate of the water tank is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure cleaning machines, in particular to a water supply structure of a cleaning machine. Background Art

[0002] Current pressure washers with detachable water tanks and a detachable cleaning machine body typically require a water delivery mechanism to transport water from the tank to the cleaning machine body. To ensure smooth water delivery, the water inlet of the water delivery mechanism is typically located below the lowest point of the water level in the tank to ensure that the water in the tank can be fully delivered to the cleaning machine body. However, in order to maintain the volume of the water tank without increasing the volume of the water tank, the water inlet of the water delivery mechanism often needs to be located above the bottom of the tank. This results in the water below the water inlet being unusable and remaining at the bottom of the tank.

[0003] Therefore, there is an urgent need to provide a water supply structure for a cleaning machine, so that even if the water inlet is higher than the lowest point of the water tank, the water in the water tank can be completely transported to the cleaning machine body to avoid water residue. Utility Model Content

[0004] The technical problem solved by the utility model is to provide a water delivery structure for a cleaning machine, which can completely deliver the water in the water tank to the cleaning machine body, thereby preventing water from remaining at the bottom of the water tank and increasing the amount of usable water.

[0005] In order to solve the above technical problems, an embodiment of the present invention provides a water supply structure of a cleaning machine, wherein the cleaning machine includes a detachably connected cleaning machine body and a water tank, the water supply structure is used to transport water in the water tank to the cleaning machine body, the water supply structure includes: a water outlet structure, the water outlet structure is protrudingly arranged on the bottom surface of the water tank, the water outlet structure includes a cover body, a water outlet valve and a water supply channel, the top of the water outlet valve is provided with a water inlet, the cover body is provided outside the water outlet valve, and a first gap is provided between the cover body and the bottom surface of the water tank, the water supply channel connects the first gap and the water inlet; a water inlet structure, the water inlet structure is provided on the cleaning machine body, and the water inlet structure is connected to the water supply channel when the water outlet structure is connected to the water inlet structure; a water pumping device, one end of the water pumping device is connected to the water inlet structure.

[0006] Optionally, the bottom of the water tank has an upwardly protruding installation cavity, the water outlet valve is arranged in the installation cavity, the cover body is arranged outside the installation cavity, and there is a second gap between the cover body and the side wall of the installation cavity, and the water supply channel connects the first gap, the second gap and the water inlet.

[0007] Optionally, the water outlet valve further includes a shell and a seal, the shell is connected to the seal, the water inlet is arranged at the top of the shell, and the seal is provided with a plurality of water inlet holes, which are connected to the water inlet.

[0008] Optionally, the sealing member includes a valve hole and a valve core, the valve hole is arranged in the sealing member, the valve hole is communicated with the water inlet hole, the bottom of the valve hole has a water outlet, the valve core is arranged in the valve hole, and the valve core is suitable for abutting against the water outlet to seal the water outlet.

[0009] Optionally, the sealing member further includes a spring, which is fixed in the valve hole and sleeved on the valve core.

[0010] Optionally, the water inlet structure includes a water inlet and a ejector pin, the water inlet protruding from the bottom surface of the cleaning machine body, and the ejector pin is arranged in the water inlet. When the water outlet structure is connected to the water inlet structure, the water inlet is connected to the sealing member, and the ejector pin pushes the valve core to move along the axial direction of the valve hole to open the water outlet.

[0011] Optionally, it further includes a water outlet channel, one end of which is connected to the pumping device, and the other end of which is connected to the spray gun of the cleaning machine body.

[0012] Optionally, the area of ​​the first gap is greater than or equal to the cross-sectional area of ​​the water outlet channel.

[0013] Optionally, the area of ​​the first gap is equal to the product of the height of the first gap and the perimeter of the opening of the cover body.

[0014] Optionally, the pumping device includes a pressure pump.

[0015] Compared with the prior art, the technical solution of the embodiment of the utility model has the following beneficial effects:

[0016] The water supply structure provided by the present technical solution has a water inlet at the top of the water outlet valve higher than the bottom surface of the water tank. When the water inlet structure is connected to the water outlet structure, the water supply channel is connected to the first gap, the water inlet and the water inlet structure. The pumping device is connected to the water inlet structure to provide power for the water supply. At the same time, it is also used to evacuate the air in the water supply channel before the water is transported, causing a pressure difference between the first gap and the water inlet structure, so that the water supply structure meets the conditions for achieving the siphon effect. By utilizing the siphon principle, water can smoothly enter the water supply channel from the first gap and pass through the water inlet located at a high place to complete the water supply. All the water at the bottom of the water tank can be transported to the cleaning machine body without causing water residue at the bottom of the water tank. Without increasing the volume of the water tank, the use space of the water tank is increased and the amount of usable water is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic cross-sectional view of a water supply structure of a cleaning machine in one embodiment of the present invention;

[0018] Figure 2 yes Figure 1 An enlarged structural diagram of the water delivery structure shown;

[0019] Figure 3 This is a structural diagram of a water outlet valve in one embodiment of the present utility model;

[0020] Figure 4 It is a structural schematic diagram of a sealing member in one embodiment of the present invention. DETAILED DESCRIPTION

[0021] As described in the background technology, when the water inlet is higher than the lowest point of the water tank, the water at the bottom of the water tank cannot be transported to the main body of the cleaning machine, which in disguise reduces the usable space of the water tank. If the same water consumption is to be achieved, the volume of the water tank needs to be increased, which is not conducive to the miniaturization and storage of the water tank.

[0022] In order to solve the above problems, an embodiment of the present invention provides a water delivery structure for delivering water in a water tank to a cleaning machine main body, the water delivery structure comprising a water outlet structure, a water inlet structure and a pumping device, the water inlet of the water outlet structure being arranged at the top of the water outlet valve, the cover body being arranged outside the water outlet valve, and a first gap being provided between the cover body and the bottom of the water tank, when the water outlet structure and the water inlet structure are connected, the water delivery channel is connected to the first gap, the water inlet and the water inlet structure, and the pumping device is also connected to the water inlet structure, the pumping device is used to provide power for the flow of water, and before pumping water, the air in the water delivery channel is evacuated so that the pressure at the first gap is greater than the pressure in the water delivery channel, so that water can enter the water delivery channel from the first gap, and by utilizing the principle of siphon effect, water can flow to the water inlet structure through the water inlet, and the water below the water inlet can be completely delivered to the cleaning machine main body, avoiding water residue and maximizing the use of the water tank space.

[0023] In order to make the above-mentioned objects, features and beneficial effects of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0024] Figure 1 This is a schematic cross-sectional view of a water supply structure of a cleaning machine in one embodiment of the present invention; Figure 2 yes Figure 1 An enlarged structural diagram of the water delivery structure shown; Figure 3 This is a structural diagram of a water outlet valve in one embodiment of the present utility model; Figure 4 It is a structural schematic diagram of a sealing member in one embodiment of the present invention.

[0025] Combined with reference Figure 1 and Figure 2 The cleaning machine includes a detachably connected cleaning machine body 10 and a water tank 20, the water delivery structure 100 being used to deliver water in the water tank 20 to the cleaning machine body 10, the water delivery structure including: a water outlet structure, the water outlet structure being protrudingly arranged on the bottom surface of the water tank 20, the water outlet structure including a cover body 31, a water outlet valve 32 and a water delivery channel 33, the top of the water outlet valve 32 having a water inlet 321, the cover body 31 being arranged outside the water outlet valve 32, and a first gap 311 being formed between the cover body 31 and the bottom surface of the water tank 20, the water delivery channel 33 communicating with the first gap 311 and the water inlet 321; a water inlet structure, the water inlet structure being arranged on the cleaning machine body 10, and when the water outlet structure is connected to the water inlet structure, the water inlet structure is communicated with the water delivery channel 33; a water pumping device 40, one end of the water pumping device 40 being communicated with the water inlet structure.

[0026] In this embodiment, the bottom portion of the water tank 20 protrudes upward to form an installation cavity 21 protruding from the bottom of the water tank 20 . The water outlet valve 32 is installed in the installation cavity 21 , and the water outlet valve 32 is sealed to the installation cavity 21 .

[0027] In this embodiment, the cover 31 is disposed outside the installation cavity 21, and a second gap 312 is defined between the cover 31 and the sidewall of the installation cavity 21. The water delivery channel 33 connects the first gap 311, the second gap 312, and the water inlet 321. When water in the water tank 20 enters the first gap 311, it passes through the second gap 312 and reaches the water inlet 321.

[0028] It should be noted that the top and bottom of the installation cavity 21 are both open, the water outlet valve 32 is installed into the installation cavity 21 from the bottom position of the installation cavity 21, and the cover body 31 is covered on the outside of the water outlet valve 32 and the installation cavity 21 from the top position of the installation cavity 21, so that the first gap 311, the second gap 312 and the water inlet 321 can be connected.

[0029] Combined with reference Figure 3 and Figure 4 The water outlet valve 32 also includes a shell 35 and a sealing member 36. The shell 35 is connected to the sealing member 36. The water inlet 321 is arranged at the top of the shell 35. The sealing member 36 is provided with a plurality of water inlet holes 361. The water inlet holes 361 are connected to the water inlet 321.

[0030] In this embodiment, a plurality of water inlet holes 361 are provided on the sealing member 36, and the water inlet holes 361 are arranged around the circumference of the sealing member 36, so that water entering the outlet valve 32 from the water inlet 321 can enter the sealing member 36 from all sides, thereby increasing the water inlet speed.

[0031] In this embodiment, the housing 35 and the sealing member 36 are connected and then installed as a whole in the installation cavity 21 , and the water outlet valve 32 is connected to the installation cavity 21 by bolts.

[0032] Continue to refer Figure 4 The sealing member 36 includes a valve hole 37 and a valve core 38 (see Figure 2 ), the valve hole 37 is arranged in the sealing member 36, the valve hole 37 is communicated with the water inlet hole 361, the bottom of the valve hole 37 has a water outlet 371, the valve core 38 is arranged in the valve hole 37, and the valve core 37 is suitable for abutting against the water outlet 37 to block the water outlet 371.

[0033] Specifically, the sealing member 36 includes a connecting portion 362 and a column 363 arranged in the middle of the connecting portion 362. The connecting portion 362 and the main body 363 are partially hollow to form the valve hole 37. The valve core 38 abuts against the water outlet 371 when the water tank 20 and the cleaning machine body 10 are not connected, thereby preventing the water in the water tank 20 from leaking through the water outlet valve 32.

[0034] In this embodiment, when the water tank 20 and the cleaning machine body 10 are not connected, the seal 36 serves to seal the bottom of the water tank 20. Since the seal 37 is provided, the bottom of the water tank 20 will not leak, and the water tank 20 can be used alone as a water storage container or a tool for transporting water.

[0035] In this embodiment, the sealing member 36 further includes a spring 39 , which is fixed in the valve hole 37 and sleeved on the valve core 38 .

[0036] In this embodiment, the spring 39 is sleeved on the valve core 38. When the valve core 38 is subjected to external force, the compression amount of the spring 39 increases, so that the valve core 38 leaves the water outlet 371 to open the water outlet 371. In the absence of external force, under the elastic force of the spring 39, the valve core 38 abuts against the water outlet 371 to block the water outlet 371.

[0037] Continue to refer Figure 1 and Figure 2The water inlet structure includes a water inlet 51 and a ejector pin 52. The water inlet 51 is protrudingly arranged on the bottom surface of the cleaning machine body 10, and the ejector pin 52 is arranged in the water inlet 51. When the water outlet structure is connected to the water inlet structure, the water inlet 51 is connected to the sealing member 36, and the ejector pin 52 pushes the valve core 38 to move along the axial direction of the valve hole 37 to open the water outlet 371.

[0038] Specifically, when the water outlet structure is connected to the water inlet structure, the water inlet 51 is connected to the connecting portion 362 of the seal 36, and the top end of the ejector pin 52 contacts the bottom end of the valve core 38. Under the push of the ejector pin 52, the valve core 38 moves in a direction away from the water outlet 371, thereby releasing the water outlet 371.

[0039] In this embodiment, the specific operating principle of the water supply structure 100 is as follows: when the water tank 20 and the cleaning machine body 10 are not connected, the valve core 38 of the water outlet valve 32 at the bottom of the water tank 20 abuts against the water outlet 371 of the valve hole 37, the water outlet 371 is closed, and no water leakage occurs at the bottom of the water tank 20, so the water tank 20 can be used alone. When the water tank 20 and the cleaning machine body 10 are connected, the water outlet structure is connected to the water inlet structure, the water inlet 51 of the water inlet structure is connected to the connecting portion 362 of the sealing member 36, the ejector pin 52 abuts against the valve core 38 and pushes the valve core 38 away from the water outlet 371, so that the valve core 38 is separated from the water outlet 371 to open the water inlet 371. At this time, the water supply channel 33 connects the first gap 311, the second gap 312, the water inlet 321, the water inlet hole 361, the valve hole 37 and the water outlet 371. The water outlet 371 It is also connected to the water inlet 51 of the water inlet structure, and the water inlet 51 is connected to one end of the pumping device 40; under the action of the pumping device, the air in the water transfer channel 33 is evacuated to form a vacuum environment, so the pressure at the first gap 311 is greater than the pressure in the water transfer channel 33. Under the action of the pressure difference, the water in the water tank 20 enters the water transfer channel 33 through the first gap 311, and meets the conditions of the siphon effect. The water can enter the water inlet 321 located at a high position, thereby achieving the purpose of transporting water from the water outlet structure to the water inlet structure.

[0040] In this embodiment, the position of the water inlet 321 is higher than the lowest point of the water tank 20, but under the principle of siphon effect, the water at the lowest point of the water tank 20 can still be completely sucked into the water inlet structure. Without increasing the volume of the water tank 20, the water in the water tank 20 can be fully utilized to avoid water accumulation, thereby increasing the actual use space of the water tank 20.

[0041] In this embodiment, the pumping device 40 is a pressure pump; in other embodiments, the pumping device 40 may also be other power devices.

[0042] Continue to refer Figure 1 The water supply structure 100 further includes a water outlet channel 60 , one end of which is connected to the pumping device 40 , and the other end of which is connected to the spray gun (not shown) of the cleaning machine body 10 .

[0043] In this embodiment, the pumping device 40 is connected between the water inlet structure and the water outlet channel 60 .

[0044] In this embodiment, the water delivery structure 100 actually delivers the water in the water tank 20 to the spray gun of the cleaning machine body 10, and the cleaning water is sprayed onto the ground or the surface of the object to be cleaned through the spray gun for cleaning.

[0045] In this embodiment, the area of ​​the first gap 311 is greater than or equal to the cross-sectional area of ​​the water outlet channel 60. The area of ​​the first gap 311 determines the amount of water flow entering the water supply channel 33. If the area of ​​the first gap 311 is smaller than the cross-sectional area of ​​the water outlet channel 60, the pressure and flow rate of the cleaning machine will be adversely affected, reducing the overall performance of the cleaning machine. Therefore, the area of ​​the first gap 311 needs to be greater than or equal to the cross-sectional area of ​​the water outlet channel 60 to improve the overall performance of the cleaning machine.

[0046] It should be noted that the area of ​​the first gap 311 referred to in the present invention is equal to the product of the height of the first gap 311 and the perimeter of the opening of the cover body 31 , and can be considered as the area for water to pass through and enter the water supply channel 33 .

[0047] In this embodiment, the cover 31 has an opening facing the bottom surface of the water tank 20 . The height of the first gap 311 is the vertical distance between the edge of the opening of the cover 31 and the bottom surface of the water tank 20 .

[0048] In this embodiment, the cover body 31 is a circular cover, the corresponding opening is circular, and the circumference of the opening is the circumference of the circle.

[0049] In this embodiment, the water outlet channel 60 is a circular pipe, and the cross section of the corresponding water outlet channel 60 is circular.

[0050] Although the present invention is disclosed as above, it is not limited thereto. Any person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope defined by the claims.

Claims

1. A water supply structure for a cleaning machine, characterized in that: The cleaning machine comprises a cleaning machine body and a water tank that are detachably connected. The water delivery structure is used to deliver water in the water tank to the cleaning machine body. The water delivery structure comprises: a water outlet structure, the water outlet structure being protrudingly provided on the bottom surface of the water tank, the water outlet structure comprising a cover, a water outlet valve, and a water supply channel; the water outlet valve having a water inlet at the top end thereof; the cover being provided outside the water outlet valve, and a first gap being defined between the cover and the bottom surface of the water tank; and the water supply channel communicating with the first gap and the water inlet; a water inlet structure, the water inlet structure being arranged on the cleaning machine body and being in communication with the water delivery channel when the water outlet structure is connected to the water inlet structure; A pumping device, one end of which is connected to the water inlet structure.

2. The water supply structure of the cleaning machine according to claim 1, characterized in that: The bottom of the water tank has an upwardly protruding installation cavity, the water outlet valve is arranged in the installation cavity, the cover body is arranged outside the installation cavity, and a second gap is provided between the cover body and the side wall of the installation cavity, and the water transfer channel connects the first gap, the second gap and the water inlet.

3. The water supply structure of the cleaning machine according to claim 1, characterized in that: The water outlet valve further comprises a shell and a sealing member, wherein the shell is connected to the sealing member, the water inlet is arranged at the top end of the shell, and the sealing member is provided with a plurality of water inlet holes, which are communicated with the water inlet.

4. The water supply structure of the cleaning machine according to claim 3, characterized in that: The sealing component includes a valve hole and a valve core. The valve hole is arranged in the sealing component, the valve hole is communicated with the water inlet hole, the bottom of the valve hole has a water outlet, the valve core is arranged in the valve hole, and the valve core is suitable for abutting against the water outlet to seal the water outlet.

5. The water supply structure of the cleaning machine according to claim 4, characterized in that: The sealing component further comprises a spring, which is fixed in the valve hole and sleeved on the valve core.

6. The water supply structure of the cleaning machine according to claim 4, characterized in that: The water inlet structure includes a water inlet and a thimble. The water inlet is protrudingly arranged on the bottom surface of the cleaning machine body, and the thimble is arranged in the water inlet. When the water outlet structure is connected to the water inlet structure, the water inlet is connected to the sealing component, and the thimble pushes the valve core to move along the axial direction of the valve hole to open the water outlet.

7. The water supply structure of a cleaning machine according to claim 1, characterized in that: It also includes a water outlet channel, one end of which is connected to the pumping device, and the other end of which is connected to the spray gun of the cleaning machine body.

8. The water supply structure of the cleaning machine according to claim 7, characterized in that: The area of ​​the first gap is greater than or equal to the cross-sectional area of ​​the water outlet channel.

9. The water supply structure of a cleaning machine according to claim 8, characterized in that: The area of ​​the first gap is equal to the product of the height of the first gap and the perimeter of the opening of the cover body.

10. The water supply structure of a cleaning machine according to claim 1, characterized in that: The pumping device includes a pressure pump.

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