Spray gun and intelligent cover plate and toilet seat using the same

Abstract

The utility model discloses a spray gun, and disclose intelligent apron and toilet with spray gun, wherein spray gun, include: the self -cleaning water outlet is equipped with on drive seat, drive seat is connected with moving mechanism to drive moving mechanism moves, and moving mechanism is equipped with function runner and self -cleaning runner, and self -cleaning runner is connected with self -cleaning water outlet through first hose, and water distribution subassembly includes valve and motor, and valve is equipped with inlet runner and several water distribution runner, and each water distribution runner is connected to function runner and self -cleaning runner in one -to -one pairing, and motor is connected with valve to control inlet runner to select one and water distribution runner intercommunication, and inlet runner is connected with second hose, heating mechanism heats the liquid that passes through second hose, spray gun before using through heating mechanism and water distribution subassembly cooperation, and residual liquid is discharged, realizes the effect of cold water discharge, avoids cold water direct injection to user on, and fully utilizes the time of moving mechanism extension process to clean moving mechanism, guarantees clean and sanitary.

Description

Technical Field

[0001] This utility model relates to the field of spray gun technology, and in particular to a spray gun and a smart toilet seat using the same. Background Technology

[0002] Most existing fully intelligent toilets feature both bidet and feminine wash functions. Their purpose is to control the flow and temperature of the incoming water before spraying it onto the user. This functionality primarily involves controlling components such as the inlet valve, heater, distributor, and spray nozzle. Before use, a section of cold water remains in the spray nozzle's flow channel, which sprays cold water onto the user during the initial stage of use, resulting in a poor user experience. Some spray nozzles have a cooling function, but this process simply discharges liquid, wasting water. Utility Model Content

[0003] The present invention aims to at least partially solve one of the aforementioned technical problems in the related art. To this end, the present invention proposes a spray gun.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] This utility model also proposes an intelligent toilet seat and a toilet with the above-mentioned spray gun.

[0006] The spray gun according to a first aspect embodiment of the present invention includes:

[0007] The drive unit is equipped with a self-cleaning water outlet;

[0008] The moving mechanism is connected to the drive seat to drive the moving mechanism to move. The moving mechanism is provided with a functional flow channel and a self-cleaning flow channel. The self-cleaning flow channel is connected to the self-cleaning water outlet through a first hose. The self-cleaning water outlet faces the moving mechanism.

[0009] The water distribution assembly is installed on the moving mechanism. The water distribution assembly includes a valve and a motor. The valve has an inlet channel and several water distribution channels. Each water distribution channel is paired with a functional channel and a self-cleaning channel. The motor is connected to the valve to control the inlet channel to connect to one of the water distribution channels. The inlet channel is connected to a second hose.

[0010] The heating mechanism heats the liquid flowing through the second hose.

[0011] The spray gun according to the present utility model embodiment has at least the following beneficial effects: before use, the spray gun uses a heating mechanism and a water distribution component to discharge residual liquid, thereby achieving the effect of draining cold water and preventing cold water from being sprayed directly onto the user. At the same time, it makes full use of the time during the extension process of the moving mechanism to clean the moving mechanism, ensuring cleanliness and hygiene.

[0012] According to some embodiments of the present invention, the drive seat is provided with a frame, the inside of which defines a cavity, a self-cleaning water outlet is provided on the frame and faces the cavity, and the moving mechanism can pass through the cavity when it moves.

[0013] According to some embodiments of this utility model, it also includes a first connecting pipe, a water passage is provided on the frame, the self-cleaning outlet is connected to the water passage, one end of the water passage is an installation end, the installation end is an opening, a slot is provided on the side wall of the installation end, a clamp is provided on the first connecting pipe, the first connecting pipe is inserted into the water passage through the installation end, the clamp is slidably clamped in the slot, and the end of the first flexible hose away from the self-cleaning passage is connected to the first connecting pipe.

[0014] According to some embodiments of the present invention, the moving mechanism includes a moving base and a nozzle. The moving base is connected to a drive base. The nozzle and water distribution assembly are mounted on the moving base. A functional flow channel and a self-cleaning flow channel are provided on the nozzle. One end of the functional flow channel is opened at the top of the nozzle as a spray port. When the moving mechanism moves, the spray port passes through the spray path of the self-cleaning water outlet.

[0015] According to some embodiments of the present invention, the valve includes a first valve body, a second valve body, and a water distribution plate. The first valve body is provided with a plurality of water distribution channels, the second valve body is provided with an inlet channel, and the water distribution plate is rotatably installed between the first valve body and the second valve body. The motor is connected to the water distribution plate through a universal flexible shaft. When the water distribution plate rotates, it can selectively connect one of the inlet channels to the water distribution channels.

[0016] According to some embodiments of this utility model, the valve further includes a connecting shaft, a second connecting pipe and a water inlet chamber that are interconnected on the second valve body, the second connecting pipe and the water inlet chamber forming a water inlet channel, the second connecting pipe being connected to a second flexible hose, a water distribution plate having a water distribution port, one end of the first valve body being connected to one end of the water inlet chamber, the water distribution plate being located in the water inlet chamber and abutting against the end face of the first valve body, one end of each water distribution channel being opened on the end face of the first valve body abutting against the water distribution plate, the water inlet chamber being connected to one of the water distribution channels through the water distribution port, the connecting shaft passing through the first valve body, the water distribution plate and the second valve body, the connecting shaft rotating synchronously with the water distribution plate, and a universal flexible shaft being connected to the connecting shaft.

[0017] According to some embodiments of the present invention, the valve also includes a spring, which is sleeved on the connecting shaft. One end of the spring abuts against the water distribution plate, and the other end abuts against the connecting shaft. The spring applies an elastic force to the water distribution plate, causing it to abut against the first valve body.

[0018] According to some embodiments of the present invention, it also includes an angle detection mechanism, which is used to detect the rotation angle of the universal flexible shaft, and the angle detection mechanism is electrically connected to the motor.

[0019] According to a second aspect of the present invention, a smart cover includes a spray gun.

[0020] The intelligent cover according to the embodiments of this utility model has at least the following beneficial effects: the spray gun can be cooled and self-cleaned before use, which improves the comfort of use and ensures hygiene.

[0021] A toilet according to a third aspect of the present invention includes a spray gun or a smart seat.

[0022] The toilet according to the present invention has at least the following beneficial effects: the spray gun can be cooled and self-cleaned before use, improving user comfort and ensuring hygiene.

[0023] Additional aspects and advantages of this 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

[0024] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0025] Figure 1 This is a schematic diagram of the spray gun's structure;

[0026] Figure 2 yes Figure 1 Another usage scenario diagram;

[0027] Figure 3 This is a schematic diagram of the drive unit's structure;

[0028] Figure 4 This is a schematic diagram of the moving mechanism;

[0029] Figure 5 yes Figure 4 A structural decomposition diagram;

[0030] Figure 6 This is a schematic diagram of the structure of the first connecting pipe;

[0031] Figure 7 This is an exploded view of the valve component.

[0032] Figure 8 This is a cross-sectional view of the valve component.

[0033] Reference numerals: Drive seat 100; Self-cleaning outlet 101; Frame 110; Enclosure 111; Water flow channel 120; Mounting end 121; Slot 122; Moving mechanism 200; Functional flow channel 210; Spray nozzle 211; Self-cleaning flow channel 220; Moving seat 230; Nozzle 240; First hose 310; Second hose 320; Water distribution assembly 400; Valve 410; Inlet flow channel 411; Water distribution flow channel 412; Motor 420; Universal flexible shaft 421; First valve body 431; Second valve body 432; Water distribution plate 433; Second connecting pipe 434; Inlet cavity 435; Water outlet 436; Connecting shaft 440; Spring 450; First connecting pipe 500; Clip 510. Detailed Implementation

[0034] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown 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 this utility model, and should not be construed as limiting this utility model.

[0035] This utility model relates to a spray gun, including a drive base 100, a moving mechanism 200, a water distribution component 400, and a heating mechanism.

[0036] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the moving mechanism 200 is mounted on the drive base 100. The drive base 100 can drive the moving mechanism 200 to move via a drive component such as a stepper motor using chain drive, gear and rack drive, etc. In the illustrated direction, the moving direction of the moving mechanism 200 is the forward and backward direction. The drive base 100 is provided with a self-cleaning outlet 101, and the moving mechanism 200 is provided with a functional flow channel 210 and a self-cleaning flow channel 220. One, two, or more functional flow channels 210 can be provided. The self-cleaning flow channel 220 and the self-cleaning outlet 101 are connected by a first flexible hose 310, with the self-cleaning outlet 101 facing the moving mechanism 200. A water distribution component 400 is mounted on the moving mechanism 200 and moves synchronously with the moving mechanism 200 relative to the drive base 100. The water distribution assembly 400 includes a valve 410 and a motor 420. The valve 410 includes an inlet channel 411 and several water distribution channels 412. The number of water distribution channels 412 is the same as the number of functional channels 210 and self-cleaning channels 220. In this embodiment, two functional channels 210 and one self-cleaning channel 220 are provided, and correspondingly, three water distribution channels 412 are provided. Each water distribution channel 412 is paired and connected to the functional channel 210 and the self-cleaning channel 220, that is, one water distribution channel 412 is connected to one functional channel 210, and one water distribution channel 412 is connected to one self-cleaning channel 220. Alternatively, the functional channels 210 and the self-cleaning channels 220 can be inserted into each water distribution channel 412 in a tubular configuration. Motor 420 is connected to valve 410. Motor 420 controls valve 410 to switch states, allowing inlet channel 411 to connect to one of the branch channels 412. Inlet channel 411 connects to second hose 320, which connects to an external liquid supply system such as a water tank, medicine tank, or tap water pipe. Heating mechanism (not shown) can be an electric instant heating component. The heating mechanism can be installed on the second hose 320 or on the external liquid supply system. The heating mechanism heats the liquid, allowing the heated liquid to be transported to inlet channel 411 through the second hose 320.

[0037] The spray gun can be applied to smart toilet seats or toilets, and vice versa. It is used for posterior or feminine washes. In standby mode, the drive seat 100 drives the moving mechanism 200 to a rearward position. When a posterior or feminine wash is needed, the heating mechanism activates, and the external water supply system can supply water to the second hose 320 via a water pump or inlet valve. The motor 420 controls the valve 410 to connect the inlet channel 411, the branch channel 412, and the self-cleaning channel 220. The heating mechanism heats the liquid flowing through the second hose 320 to a specified stable temperature (hereinafter, the heated liquid is referred to as "warm water"). The warm water flows sequentially along the second hose 320, the inlet channel 411, the branch channel 412, the self-cleaning channel 220, and the self-cleaning outlet 101. The self-cleaning outlet 101 flushes the water onto the moving mechanism 200. The drive unit 100 drives the moving mechanism 200 to extend forward, and water cleans the moving mechanism 200. After the moving mechanism 200 extends to the use position and is positioned there, the motor 420 controls the valve 410 to switch states, causing the water inlet channel 411 to switch to the water distribution channel 412 corresponding to the functional channel 210, and warm water is sprayed out from the functional channel 210 to perform posterior or feminine wash on the user. After use, the drive unit 100 drives the moving mechanism 200 to move backward to reset. At this time, the water supply system can stop supplying water, or the water supply system can continue to supply water. At the same time, the valve 410 switches the water outlet state of the self-cleaning channel 220, and the self-cleaning outlet 101 continues to rinse the moving mechanism 200. After the moving mechanism 200 resets, the drive unit 100, the heating mechanism, and the water supply system all enter standby mode. The liquid remaining in the spray gun after the previous use will cool down. Before use, the spray gun uses the heating mechanism and the water distribution component 400 to discharge the remaining liquid, achieving the effect of draining cold water and preventing cold water from being sprayed directly onto the user. At the same time, the time during the extension process of the moving mechanism 200 is fully utilized to clean the moving mechanism 200, ensuring cleanliness and hygiene.

[0038] In one embodiment, such as Figure 1 , Figure 2 and Figure 3As shown, the drive base 100 is provided with a frame 110, and the interior of the frame 110 defines a cavity 111. The cavity 111 opens according to the moving direction of the moving mechanism 200. In this embodiment, the moving mechanism 200 moves back and forth, and the cavity 111 is open at both ends. A self-cleaning water outlet 101 is provided on the frame 110, and the self-cleaning water outlet 101 faces the cavity 111. The cavity 111 is located on the moving path of the moving mechanism 200, and the moving mechanism 200 can pass through the cavity 111 when moving. Water is sprayed into the cavity 111 through the self-cleaning water outlet 101, and the water cleans the part of the moving mechanism 200 that is currently in the cavity 111. The water is discharged downward from one end of the cavity 111. The water sprayed from the self-cleaning water outlet 101 impacts the moving mechanism 200, and the cavity 111 prevents water from splashing into the surrounding environment, effectively avoiding splashing onto the user during the cleaning process.

[0039] Furthermore, such as Figure 1 , Figure 3 and Figure 6 As shown, the spray gun also includes a first connecting pipe 500. A water passage 120 is provided on the frame 110, and the self-cleaning outlet 101 communicates with the water passage 120. One end of the water passage 120 is an installation end 121, which is open. A slot 122 is provided on the side wall of the installation end 121. The water passage 120 can be cylindrical, and the slot 122 is arranged in a ring around the central axis of the water passage 120. The first connecting pipe 500 is adapted to the shape of the water passage 120. A clamp 510 is provided on the first connecting pipe 500. The first connecting pipe 500 passes through the installation end 121 and is inserted into the water passage 120. After the first connecting pipe 500 is inserted into place, the clamp 510 aligns with the slot 122. By rotating the first connecting pipe 500, the clamp 510 slides into and engages with the slot 122, thereby fixing the first connecting pipe 500 to the frame 110. One end of the first hose 310 away from the self-cleaning channel 220 is connected to the first connecting pipe 500. One end of the first hose 310 can be fixed to the first connecting pipe 500 by means of plugging or other methods. Water flowing through the first hose 310 flows along the first connecting pipe 500, the water flow channel 120, and the self-cleaning outlet 101.

[0040] In one embodiment, such as Figure 1 , Figure 4 and Figure 5As shown, the moving mechanism 200 includes a moving base 230 and a nozzle 240. The moving base 230 is connected to a drive base 100, which drives the moving base 230 to move back and forth. The nozzle 240 and the water distribution assembly 400 are mounted on the moving base 230 and move synchronously with it. A functional flow channel 210 and a self-cleaning flow channel 220 are provided on the nozzle 240. One end of the functional flow channel 210 is opened at the top of the nozzle 240 as a spray port 211, and water is sprayed upward through the spray port 211 of the functional flow channel 210. When the moving mechanism 200 moves, the spray port 211 passes through the water spray path of the self-cleaning outlet 101, and the water sprayed from the self-cleaning outlet 101 can rinse the spray port 211.

[0041] In one embodiment, such as Figure 5 , Figure 7 and Figure 8 As shown, valve 410 includes a first valve body 431, a second valve body 432, and a water distribution plate 433. The first valve body 431 has several water distribution channels 412, and the second valve body 432 has a water inlet channel 411. The water distribution plate 433 is rotatably mounted between the first valve body 431 and the second valve body 432. Motor 420 is connected to the water distribution plate 433 via a universal joint 421. The universal joint 421 increases the connection distance between the motor 420 and the water distribution plate 433. Valve 410 is mounted at the front of the moving mechanism 200, and motor 420 is mounted at the rear end of the moving mechanism 200. When the moving mechanism 200 moves back and forth through the enclosure 111, interference between motor 420 and the enclosure 110 is avoided, and water spraying onto motor 420 is also prevented. The motor 420 drives the water distribution plate 433 to rotate via the universal flexible shaft 421. The rotation of the water distribution plate 433 connects one of the water inlet channels 411 to the water distribution channel 412 to achieve different water output functions.

[0042] The valve component 410 also includes a connecting shaft 440. The second valve body 432 has a second connecting pipe 434 and a water inlet chamber 435 that are interconnected. The second connecting pipe 434 can be integrally formed on the second valve body 432 or installed as an independent component on the second valve body 432. The second connecting pipe 434 and the water inlet chamber 435 constitute a water inlet channel 411. The second connecting pipe 434 is connected to the second flexible hose 320. The water distribution plate 433 has a water distribution port 436. One end of the first valve body 431 is connected to one end of the water inlet chamber 435, or the water inlet chamber 435 can be sleeved on one end of the first valve body 431. The water distribution plate 433 is located in the water inlet chamber 435 and abuts against the end face of the first valve body 431. One end of each water distribution channel 412 is opened on the end face of the first valve body 431 abutting against the water distribution plate 433. The water inlet chamber 435 is selectively connected to the water distribution channel 412 through the water distribution port 436. Water flows along the second flexible hose 320, the second connecting pipe 434, the water inlet chamber 435, the water distribution port 436, and the water distribution channel currently aligned with the water distribution port 436. The connecting shaft 440 passes through the first valve body 431, the water distribution plate 433, and the second valve body 432. The connecting shaft 440 can rotate relative to the first valve body 431 and the second valve body 432. The connecting shaft 440 and the water distribution plate 433 are relatively fixed. The connecting shaft 440 rotates synchronously with the water distribution plate 433. The universal flexible shaft 421 is connected to the connecting shaft 440. The universal flexible shaft 421 drives the water distribution plate 433 to rotate via the connecting shaft 440 to switch the position of the water outlet 436. The valve component 410 also includes a spring 450, which is sleeved on the connecting shaft 440. One end of the spring 450 abuts against the water distribution plate 433, and the other end abuts against the connecting shaft 440. The spring 450 applies an elastic force to the water distribution plate 433, causing it to abut against the first valve body 431, thus keeping the water distribution plate 433 tightly against the end face of the first valve body 431. Furthermore, the spray gun also includes an angle detection mechanism, which is electrically connected to the motor 420. The angle detection mechanism and the motor 420 can be connected to an external control system. By detecting the rotation angle of the universal flexible shaft 421, the rotation stroke of the motor 420 is controlled, which in turn controls the rotation angle of the water distribution plate 433, ensuring that the water outlet 436 switches to the desired function of the water distribution channel 412.

[0043] In the description of this utility model, 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", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0044] 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 utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0045] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," 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 utility model according to the specific circumstances.

[0046] 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.

[0047] 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 present 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.

[0048] Although embodiments of the present 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 present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A spray gun, characterized in that, include: A drive base (100) is provided with a self-cleaning water outlet (101). A moving mechanism (200) is provided, wherein the drive seat (100) is connected to the moving mechanism (200) to drive the moving mechanism (200) to move. The moving mechanism (200) is provided with a functional flow channel (210) and a self-cleaning flow channel (220). The self-cleaning flow channel (220) is connected to the self-cleaning water outlet (101) through a first hose (310). The self-cleaning water outlet (101) faces the moving mechanism (200). Water distribution assembly (400) is installed on the moving mechanism (200). The water distribution assembly (400) includes a valve (410) and a motor (420). The valve (410) is provided with an inlet channel (411) and a plurality of water distribution channels (412). Each water distribution channel (412) is paired and connected to the functional channel (210) and the self-cleaning channel (220). The motor (420) is connected to the valve (410) to control the inlet channel (411) to connect to one of the water distribution channels (412). The inlet channel (411) is connected to a second hose (320). A heating mechanism that heats the liquid flowing through the second hose (320).

2. The spray gun according to claim 1, characterized in that: The drive seat (100) is provided with a frame (110), and the interior of the frame (110) defines a cavity (111). The self-cleaning water outlet (101) is disposed on the frame (110) and faces the cavity (111). When the moving mechanism (200) moves, it can pass through the cavity (111).

3. The spray gun according to claim 2, characterized in that: It also includes a first connecting pipe (500), a water passage (120) on the frame (110), a self-cleaning outlet (101) connected to the water passage (120), one end of the water passage (120) being an installation end (121), the installation end (121) being an opening, a slot (122) on the side wall of the installation end (121), a clamp (510) on the first connecting pipe (500), the first connecting pipe (500) being inserted into the water passage (120) through the installation end (121), the clamp (510) being slidably clamped into the slot (122), and the end of the first hose (310) away from the self-cleaning passage (220) being connected to the first connecting pipe (500).

4. The spray gun according to claim 1, characterized in that: The moving mechanism (200) includes a moving base (230) and a nozzle (240). The moving base (230) is connected to the drive base (100). The nozzle (240) and the water distribution assembly (400) are mounted on the moving base (230). The functional flow channel (210) and the self-cleaning flow channel (220) are arranged on the nozzle (240). One end of the functional flow channel (210) is opened at the top of the nozzle (240) as a spray port (211). When the moving mechanism (200) moves, the spray port (211) passes through the spray path of the self-cleaning outlet (101).

5. The spray gun according to any one of claims 1 to 4, characterized in that: The valve (410) includes a first valve body (431), a second valve body (432), and a water distribution plate (433). The first valve body (431) is provided with a plurality of water distribution channels (412), and the second valve body (432) is provided with a water inlet channel (411). The water distribution plate (433) is rotatably installed between the first valve body (431) and the second valve body (432). The motor (420) is connected to the water distribution plate (433) through a universal flexible shaft (421). When the water distribution plate (433) rotates, it can selectively connect one of the water inlet channels (411) with the water distribution channel (412).

6. The spray gun according to claim 5, characterized in that: The valve (410) further includes a connecting shaft (440). The second valve body (432) is provided with a second connecting pipe (434) and a water inlet chamber (435) that are interconnected. The second connecting pipe (434) and the water inlet chamber (435) constitute the water inlet channel (411). The second connecting pipe (434) is connected to the second flexible hose (320). The water distribution plate (433) is provided with a water distribution port (436). One end of the first valve body (431) is connected to one end of the water inlet chamber (435). The water distribution plate (433) is located in the water inlet chamber (435) and abuts against it. On the end face of the first valve body (431), one end of each of the water distribution channels (412) is opened on the end face of the first valve body (431) and the water distribution plate (433) that abuts against each other. The water inlet chamber (435) is connected to the water distribution channel (412) through the water distribution port (436). The connecting shaft (440) passes through the first valve body (431), the water distribution plate (433) and the second valve body (432). The connecting shaft (440) rotates synchronously with the water distribution plate (433). The universal flexible shaft (421) is connected to the connecting shaft (440).

7. The spray gun according to claim 6, characterized in that: The valve (410) also includes a spring (450), which is sleeved on the connecting shaft (440). One end of the spring (450) abuts against the water distribution plate (433), and the other end abuts against the connecting shaft (440). The spring (450) applies an elastic force to the water distribution plate (433) to make it abut against the first valve body (431).

8. The spray gun according to claim 5, characterized in that: It also includes an angle detection mechanism, which is used to detect the rotation angle of the universal flexible shaft (421), and the angle detection mechanism is electrically connected to the motor (420).

9. A smart cover, characterized in that: Includes the spray gun described in any one of claims 1 to 8.

10. A toilet seat, characterized in that: Includes the spray gun as described in any one of claims 1 to 8 or the smart cover as described in claim 9.

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