Self-cleaning device, spray gun, intelligent cover plate and intelligent toilet

Abstract

The application discloses a self-cleaning device applied to a spray gun, which comprises a shell assembly, a liquid inlet channel, a through hole and a groove are arranged on the shell assembly, the through hole is used for slidingly penetrating the gun body of the spray gun, the liquid inlet channel is communicated with the through hole, the groove is arranged at the lower part of the inner wall of the through hole and is communicated with the through hole, and the communication part of the groove and the through hole is located on the movement path of the gun body bottom shell. The self-cleaning device can store the cleaning liquid through the groove at the bottom of the through hole, can comprehensively clean the gun body bottom shell during the extension and contraction of the gun body, avoids missing the cleaning dead angle, and has better cleaning effect.

Description

Technical Field

[0001] This invention relates to the field of smart toilets, and in particular to a self-cleaning device, a spray gun, a smart toilet seat, and a smart toilet. Background Technology

[0002] Some smart toilets are equipped with a spray gun for users to clean. During use, the gun's outer shell is easily contaminated, so a cleaning device is installed on the spray gun to clean the outer shell. However, in some existing technologies, the cleaning device only rinses the top and sides of the outer shell, while the bottom of the outer shell is often only cleaned by the water flowing down from the top and sides. In this method of cleaning the bottom of the outer shell, most of the water flow often fails to completely cover the bottom of the outer shell before being drained away, which cannot ensure that the bottom of the outer shell is thoroughly cleaned. Summary of the Invention

[0003] This invention proposes a self-cleaning device, a spray gun, a smart toilet seat, and a smart toilet, aiming to solve at least some of the technical problems in the prior art.

[0004] To achieve the above objectives, a first aspect of the present invention provides a self-cleaning device applied to a spray gun, comprising: a housing assembly having a liquid inlet channel, a through hole, and a groove thereon, the through hole being for the spray gun body to slide through, the liquid inlet channel communicating with the through hole, and a groove being provided on the bottom wall of the through hole, the groove being located on the movement path of the bottom shell of the spray gun body.

[0005] The self-cleaning device provided according to the first aspect of the present invention stores cleaning fluid by providing a groove at the bottom of the through hole, which enables the gun body bottom shell to be thoroughly cleaned during the gun body extension and retraction process, avoiding missed cleaning dead corners and achieving better cleaning effect.

[0006] According to some embodiments of the present invention, a drain hole is provided on the side wall and / or bottom wall of the groove, and the drain hole connects the interior of the groove with the external space.

[0007] According to some embodiments of the present invention, the liquid flow cross-sectional area of ​​the drain hole is smaller than the liquid flow cross-sectional area of ​​the inlet channel.

[0008] According to some embodiments of the present invention, the through hole includes a first end through which the gun body extends out of the housing assembly, and the self-cleaning device further includes a cover plate assembly, which is movably disposed on the housing assembly and has a first state in which the first end is open and a second state in which the first end is closed.

[0009] According to some embodiments of the present invention, a driving part is provided on the cover plate assembly, the driving part is disposed on the side of the cover plate assembly near the first end, a drain channel is provided on the groove, the inlet of the drain channel is in communication with the internal space of the groove, a sealing part is provided in the drain channel, the sealing part has a third state of opening the drain channel and a fourth state of closing the drain channel, wherein when the cover plate assembly is in the first state, the sealing part is in the fourth state, and during the process of the cover plate assembly switching to the second state, the cover plate assembly drives the sealing part to switch to the third state through the driving part.

[0010] According to some embodiments of the present invention, the sealing portion includes a piston and an elastic member, the elastic member being disposed between the piston and the inlet to provide the piston with an elastic force that causes the piston to block the drain channel, wherein, The driving part is a protruding post. When the cover plate assembly switches to the second state, the protruding post pushes the piston to move, thereby opening the drainage channel; or, The driving unit is a plate-like structure on the cover plate assembly. The piston has a protrusion; when the piston blocks the drainage channel, the protrusion protrudes from the drainage channel. When the cover plate assembly switches to the second state, the driving unit pushes the protrusion to move the piston, thereby opening the drainage channel; or... The driving part is a first magnet, and the piston is provided with a second magnet. The first magnet and the second magnet have the same magnetism. When the cover plate assembly switches to the second state, the cover plate assembly pushes the piston to move by the repulsive force between the first magnet and the second magnet, so as to open the drainage channel.

[0011] According to some embodiments of the present invention, a counterweight is provided on the cover plate assembly, or a third magnet is provided on the cover plate assembly and a fourth magnet is provided on the housing assembly, wherein the third magnet and the fourth magnet have opposite magnetic properties, and the third magnet and the fourth magnet are correspondingly arranged when the cover plate assembly is in the second state.

[0012] A second aspect of the present invention provides a spray gun, including the gun body, a bracket, a drive assembly for driving the gun body to slide, and the self-cleaning device described above, the self-cleaning device being disposed on the bracket.

[0013] A third aspect of the present invention provides an intelligent cover plate, including the self-cleaning device described above, or the spray gun described above.

[0014] A fourth aspect of the present invention provides a smart toilet, including the self-cleaning device described above, or the spray gun described above, or the smart toilet seat described above.

[0015] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 A schematic diagram of the spray gun provided in an embodiment of the present invention is shown; Figure 2 It shows Figure 1 A cross-sectional view along the YY direction; Figure 3 A schematic diagram of the housing assembly provided in an embodiment of the present invention is shown; Figure 4 It shows Figure 1 Partial sectional view of the structure along the XX direction; Figure 5 It shows Figure 1 Another structural cross-sectional view (partial) along the XX direction; Figure 6 It shows Figure 1 Another structural cross-sectional view (partial) along the XX direction; Figure label: 1000. Self-cleaning device; 100. Housing assembly; 110. Upper shell; 111. Liquid inlet channel; 120. Lower shell; 121. Groove; 122. Drain hole; 123. Drain channel; 130. Through hole; 131. First end; 140. Shaft hole; 200. Cover plate assembly; 210. Rotating shaft; 220. Drive unit; 230. Counterweight; 300. Sealing part; 310. Piston; 320. Elastic element; 2000, gun body; 3000, support. Detailed Implementation

[0017] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0018] refer to Figure 1 , 23, 4. In some specific embodiments of the present invention, a self-cleaning device 1000 is provided for cleaning the spray gun on a smart toilet. The self-cleaning device 1000 includes a housing assembly 100, which is generally cylindrical with a through hole 130 in the middle. During use, the spray gun body 2000 can slide through the through hole 130 and extend / retract relative to the housing assembly 100. The housing assembly 100 is provided with a liquid inlet channel 111 and a groove 121. The liquid inlet channel 111 penetrates the housing assembly 100 and connects to the through hole 130, thereby allowing cleaning fluid to enter the through hole 130 through the liquid inlet channel 111. The groove 121 is located inside the through hole 130, specifically on the bottom wall of the through hole 130, and is situated along the movement path of the bottom shell of the spray gun body 2000.

[0019] Therefore, when the cleaning fluid enters the through hole 130 through the inlet channel 111, it not only impacts the top and side shells of the gun body 2000, but also accumulates and stores in the groove 121. When the cleaning fluid fills the groove 121, since the connection between the groove 121 and the through hole 130 is located on the movement path of the bottom shell of the gun body 2000, the surface of the cleaning fluid can contact the bottom shell of the gun body 2000. Thus, when the gun body 2000 is extended and the self-cleaning function is activated, the bottom shell of the gun body 2000 can also be thoroughly cleaned. On the other hand, when the gun body 2000 is used up and retracted, since the cleaning fluid is still stored in the groove 121, the cleaning fluid will clean the gun body 2000 again to prevent the wastewater splashed on the bottom shell during the use of the spray gun from not being cleaned in time and becoming difficult-to-clean stains later.

[0020] In this embodiment of the invention, by setting a groove 121 at the bottom of the through hole 130 to store the cleaning fluid, the bottom shell of the gun body 2000 can be thoroughly cleaned during the extension and retraction of the gun body 2000, avoiding missed cleaning dead corners and achieving better cleaning results.

[0021] In some specific embodiments of the present invention, the cleaning step during the retraction of the gun body 2000 can be omitted, and cleaning can be performed only when the gun body 2000 is extended to ensure that the gun body 2000 is clean before the start of a single use.

[0022] refer to Figure 3In this embodiment of the invention, a drain hole 122 is provided on the groove 121, which connects the interior and exterior spaces of the groove 121. Specifically, it can be located on the side wall and / or bottom wall of the groove 121. It is understood that the cleaning fluid entering the through hole 130 from the inlet channel 111 experiences reduced pressure and flow velocity after passing through the top and side walls of the gun body 2000 and being blocked by the wall surface where the drain hole 122 is located. Therefore, its drain velocity is less than its inlet velocity. Thus, even if the drain hole 122 is normally open, the groove 121 can still store cleaning fluid until the liquid surface contacts the bottom shell of the gun body 2000.

[0023] In some specific embodiments of the present invention, the liquid passage cross-sectional area of ​​the drain hole 122 is smaller than that of the liquid passage cross-sectional area of ​​the inlet channel 111, thereby further ensuring the liquid storage effect and liquid storage speed of the groove 121.

[0024] refer to Figure 2 , 3 4. In some specific embodiments of the present invention, the through hole 130 includes a first end 131 through which the gun body 2000 extends beyond the housing assembly 100. That is, the first end 131 is the end of the two openings of the through hole 130 facing the direction of extension of the gun body 2000. The self-cleaning device 1000 also includes a cover plate assembly 200, which is movably disposed on the housing assembly 100. Specifically, a shaft hole 140 is provided on one of the upper shell wall of the first end 131 and the upper side of the cover plate assembly 200, and a rotating shaft 210 is provided on the other. The cover plate assembly 200 is rotatably connected to the housing assembly 100 through the shaft hole 140 and the rotating shaft 210, and the cover plate assembly 200 has a first state in which the first end 131 is opened to allow the gun body 2000 to extend, and a second state in which the first end 131 is closed.

[0025] In this embodiment of the invention, when the cover assembly 200 is in the second state, the gun body 2000 can be isolated from the environment outside the housing assembly 100 when not in use, and will not be contaminated by dust, toilet splashes, etc. On the other hand, when the gun body 2000 is about to extend, a portion of the cleaning fluid entering from the liquid inlet channel 111 can flow along the top of the gun body 2000 to the side of the cover assembly 200 near the spray gun, so that the front shell of the gun body 2000 can be cleaned by the rebound of the cover assembly 200. It is understood that the aforementioned front shell cleaning can be achieved by setting the time difference between the liquid inlet and the extension of the gun body 2000. For example, when the user turns on the spray gun function, the liquid inlet channel 111 first continuously inlets liquid for a preset time, such as 2 seconds. At this time, the cover assembly 200 then moves to the first state.

[0026] It should be noted here that the movement of the cover assembly 200 can be driven in different ways. For example, when the gun body 2000 is extended, the cover assembly 200 can be directly pushed by the gun body 2000 to open the first end 131, or the cover assembly 200 can be rotated by a motor. No specific limitation is made here.

[0027] refer to Figure 5 , 6 In some specific embodiments of the present invention, a driving part 220 is provided on the side of the cover plate assembly 200 near the first end 131, and a drain channel 123 is provided on the bottom wall or side wall of the groove 121. The inlet of the drain channel 123 communicates with the internal space of the groove 121. A sealing part 300 is provided in the drain channel 123. The sealing part 300 has a third state of opening the drain channel 123 and a fourth state of closing the drain channel 123. When the cover plate assembly 200 is in the first state, the sealing part 300 is in the fourth state. During the process of the cover plate assembly 200 switching to the second state, the cover plate assembly 200 can drive the sealing part 300 to switch to the third state through the driving part 220 so that the cleaning liquid stored in the groove 121 is drained away.

[0028] In this embodiment of the invention, when the cover assembly 200 is in the first state with the first end 131 open, the drainage channel 123 is closed, and the groove 121 maintains the state of storing cleaning fluid, so that the bottom shell of the gun body 2000 can be thoroughly cleaned during the extension and retraction process. When the gun body 2000 is fully retracted, the cover assembly 200 also switches to the second state, so that the cover assembly 200 can open the drainage channel 123 while completing the closing function, so that the cleaning fluid can be drained in time when the bottom shell of the gun body 2000 does not need to be cleaned, avoiding the growth of bacteria and odors from residual liquid. On the other hand, other residual water in the gun body 2000 or even the smart cover can also be diverted to the drainage channel 123 for drainage.

[0029] refer to Figure 5 In some specific embodiments of the present invention, the driving part 220 is a protruding post, and the sealing part 300 includes a piston 310 and an elastic member 320. The elastic member 320 is disposed between the piston 310 and the liquid inlet to provide elastic force to the piston 310 so that the piston 310 blocks the liquid outlet end of the drain channel 123. When the cover plate assembly 200 is switched to the second state, the protruding post can push the piston 310 to move to open the liquid outlet end, so that the drain channel 123 can start draining liquid.

[0030] Understandably, the outer peripheral wall of the protrusion can be set as a tapered slope. Thus, in an embodiment where the cover plate assembly 200 is driven by the gun body 2000, the gun body 2000 can move relative to the protrusion through the slope of the protrusion, avoiding interference and jamming. However, when the cover plate assembly 200 is driven by a motor, the outer peripheral wall of the protrusion may not be set as a slope.

[0031] refer to Figure 6 In some specific embodiments of the present invention, the driving part 220 may also be part of the plate-shaped body of the cover assembly 200. The sealing part 300 includes a piston 310 and an elastic member 320. The elastic member 320 is disposed between the piston 310 and the liquid inlet to provide elastic force to the piston 310, so that the piston 310 blocks the liquid outlet end of the drain channel 123. A protrusion is provided on the piston 310. When the piston 310 blocks the liquid outlet end, the protrusion protrudes from the liquid outlet end. When the cover assembly 200 switches to the second state, the cover assembly 200 covers the first end 131. The cover assembly 200 pushes against the protrusion to make the piston 310 move and open the liquid outlet end to drain the cleaning liquid.

[0032] In other specific embodiments of the present invention, the driving part 220 is a first magnet (not shown), and the sealing part 300 includes a piston 310 and an elastic member 320. The elastic member 320 is disposed between the piston 310 and the liquid inlet to provide elastic force to the piston 310, causing the piston 310 to block the liquid outlet end of the drain channel 123. A second magnet (not shown) is disposed on the piston 310. The first magnet and the second magnet have the same magnetism. When the cover assembly 200 switches to the second state, the cover assembly 200 covers the first end 131. The cover assembly 200 causes the piston 310 to move and open the liquid outlet end through the repulsive force of the first magnet on the second magnet, so as to drain the cleaning liquid. It can be understood that in this embodiment, the driving force of the cover assembly 200 switching to the second state is greater than the elastic force of the elastic member 320 when the piston 310 blocks the liquid outlet end.

[0033] It is understood that in some of the above embodiments, when the cover assembly 200 is in the second state, there are multiple ways to set the drainage path of the cleaning fluid. For example, the cover assembly 200 is provided with a through hole 130 at the position corresponding to the liquid outlet end of the drainage channel 123, so that even when the cover assembly 200 is completely covered on the liquid outlet end, the cleaning fluid can still be drained through the through hole 130.

[0034] Alternatively, the portion of the cover plate assembly 200 with the sealing part 300 can be defined as the sealing plate (in this embodiment where the drive part 220 is part of the plate-shaped body of the cover plate assembly 200, the portion of the sealing plate used to seal the liquid outlet end is the sealing part 300). When the cover plate assembly 200 is in the second state, the plane where the sealing plate is located does not coincide with the plane where the liquid outlet end is located, or they can be directly set to be parallel to each other. In this case, when the liquid outlet end is not blocked by the piston 310, the cleaning fluid flowing out from the liquid outlet end can be discharged through the gap between the sealing plate and the liquid outlet end.

[0035] refer to Figure 4 , 56. In some specific embodiments of the present invention, a counterweight 230 is provided on the cover plate assembly 200. When the gun body 2000 retracts into the through hole 130, the counterweight 230 can reset the cover plate assembly 200 to the second state and press it against the first end 131.

[0036] In some specific embodiments of the present invention, a third magnet (not shown) is provided on the cover plate assembly 200, and a fourth magnet (not shown) is provided on the housing assembly 100. The third magnet and the fourth magnet have different magnetic properties, and when the cover plate assembly 200 is in the fourth state, the positions of the third magnet and the fourth magnet correspond to each other.

[0037] In this embodiment, by providing a third magnet and a fourth magnet with opposite magnetic properties, the cover assembly 200 and the housing assembly 100 can be kept tightly closed when the cover assembly 200 is in the fourth state, preventing loosening or gaps between them.

[0038] It is understandable that when the first magnet, the second magnet, the third magnet and the fourth magnet are present in the self-cleaning device 1000 at the same time, the repulsive force between the first magnet and the second magnet is less than the attractive force between the third magnet and the fourth magnet, so that the cover assembly 200 and the housing assembly 100 are kept tightly closed, while ensuring that the cover assembly 200 drives the piston 310 to move.

[0039] refer to Figure 3 In some specific embodiments of the present invention, the housing assembly 100 includes an upper housing 110 and a lower housing 120. The groove 121 may be directly disposed on the lower housing 120, or it may be formed by the lower housing 120 and the upper housing 110 together. No limitation is made here.

[0040] Furthermore, the drain hole 122 and the drain channel 123 are both located on the lower shell 120, and the inlet channel 111 is located in the upper shell 110.

[0041] refer to Figure 1 In some specific embodiments of the present invention, a spray gun is provided, including a gun body 2000, a bracket 3000, a drive assembly for driving the gun body 2000 to slide, and the aforementioned self-cleaning device 1000, wherein the self-cleaning device 1000 is disposed on the bracket 3000. Specifically, the drive assembly can be a conventional motor, gear, and rack and pinion mechanism to complete the drive control, and the self-cleaning device 1000 is mounted on one end of the bracket 3000 opposite to the drive assembly.

[0042] In some specific embodiments of the present invention, an intelligent cover is also provided, wherein the above-mentioned self-cleaning device 1000 or spray gun is disposed on the intelligent cover.

[0043] In some specific embodiments of the present invention, a smart toilet is also provided, wherein the above-mentioned self-cleaning device 1000, the above-mentioned spray gun, or the above-mentioned smart toilet cover is disposed in the smart toilet.

[0044] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0046] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0047] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0048] In the description of this specification, references to terms such as "some specific embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0049] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A self-cleaning device, applied to a spray gun, characterized in that, The device includes a housing assembly, which has a liquid inlet channel, a through hole, and a groove. The through hole is used for the spray gun body to slide through. The liquid inlet channel communicates with the through hole. The bottom wall of the through hole has a groove located on the movement path of the bottom shell of the gun body.

2. The self-cleaning device according to claim 1, characterized in that, The groove is provided with a drain hole, which connects the inside of the groove with the outside space.

3. The self-cleaning device according to claim 2, characterized in that, The cross-sectional area of ​​the drain hole is smaller than that of the inlet channel.

4. The self-cleaning device according to claim 1, characterized in that, The through hole includes a first end through which the gun body extends out of the housing assembly. The self-cleaning device also includes a cover plate assembly, which is movably disposed on the housing assembly and has a first state with the first end open and a second state with the first end closed.

5. The self-cleaning device according to claim 4, characterized in that, The cover plate assembly is provided with a driving part, which is located on the side of the cover plate assembly near the first end. The groove is provided with a drainage channel, the inlet of the drainage channel is connected to the internal space of the groove, and a sealing part is provided in the drainage channel. The sealing part has a third state of opening the drainage channel and a fourth state of closing the drainage channel. When the cover plate assembly is in the first state, the sealing part is in the fourth state. During the process of the cover plate assembly switching to the second state, the cover plate assembly drives the sealing part to switch to the third state through the driving part.

6. The self-cleaning device according to claim 5, characterized in that, The sealing part includes a piston and an elastic element. The elastic element is disposed between the piston and the inlet to provide the piston with a spring force that causes the piston to block the drain channel. The driving part is a protruding post. When the cover plate assembly switches to the second state, the protruding post pushes the piston to move, thereby opening the drainage channel; or, The driving unit is a plate-like structure on the cover plate assembly. The piston has a protrusion; when the piston blocks the drainage channel, the protrusion protrudes from the drainage channel. When the cover plate assembly switches to the second state, the driving unit pushes the protrusion to move the piston, thereby opening the drainage channel; or... The driving part is a first magnet, and the piston is provided with a second magnet. The first magnet and the second magnet have the same magnetism. When the cover plate assembly switches to the second state, the cover plate assembly pushes the piston to move by the repulsive force between the first magnet and the second magnet, so as to open the drainage channel.

7. The self-cleaning device according to claim 4, characterized in that, The cover plate assembly is provided with a counterweight, or the cover plate assembly is provided with a third magnet and the housing assembly is provided with a fourth magnet. The third magnet and the fourth magnet have opposite magnetic properties. When the cover plate assembly is in the second state, the third magnet and the fourth magnet are set accordingly.

8. A spray gun, comprising the gun body, a support, and a drive assembly for driving the gun body to slide, characterized in that, It also includes a self-cleaning device as described in any one of claims 1-7, wherein the self-cleaning device is disposed on the bracket.

9. A smart cover plate, characterized in that, include: The self-cleaning device as described in any one of claims 1-7, or the spray gun as described in claim 8.

10. A smart toilet, characterized in that, include: The self-cleaning device according to any one of claims 1-7, or the spray gun according to claim 8, or the smart cover according to claim 9.

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