A spray rod device with self-cleaning function, intelligent toilet cover and intelligent toilet

Abstract

The application discloses a spray rod device with a self-cleaning function, an intelligent toilet lid and an intelligent toilet. The spray rod device comprises a fixed part and a spray rod. The spray rod is slidably connected to the fixed part along the axial direction. The spray rod is provided with at least one washing water channel. The top of the spray rod is provided with a self-cleaning water outlet structure. The water output by the self-cleaning water outlet structure flows along the top surface of the spray rod to the end of the spray rod, is blocked by a limiting part arranged on the fixed part, and then flows downwards along the wall surface on both sides of the spray rod. The self-cleaning water outlet structure is arranged on the spray rod, so that the spray rod has the self-cleaning function and can be thoroughly cleaned on the top surface and the wall surface on both sides. The problem that the traditional spray rod device cannot thoroughly clean the spray rod is solved.

Description

Technical Field

[0001] This invention relates to bathroom products, and in particular to a spray bar device with self-cleaning function, a smart toilet seat, and a smart toilet. Background Technology

[0002] Many existing smart toilets come with a spray bar device that can perform posterior wash, feminine wash, and soft wash. The spray bar device generally includes a fixed part, a drive mechanism, the spray bar itself, and a water control unit. The drive mechanism extends or retracts the spray bar relative to the fixed part, switching between working and non-working states. Before use, the spray bar surface often needs to be cleaned. Therefore, most existing spray bar devices have a self-cleaning function. However, these self-cleaning devices typically have a self-cleaning tube or self-cleaning nozzle attached to the fixed part. The water output from this tube or nozzle cleans the spray bar surface; therefore, the spray bar itself does not have a self-cleaning function. Summary of the Invention

[0003] This invention addresses the technical problems existing in the prior art by providing a spray bar device with a self-cleaning function, as well as a smart toilet seat and a smart toilet, wherein the spray bar has a self-cleaning function.

[0004] The technical solution adopted by the present invention to solve its technical problem is: a spray bar device with self-cleaning function, including a fixed part and a spray bar, the spray bar being slidably mounted to the fixed part along its axial direction, the spray bar being provided with at least one flushing water path; a self-cleaning water outlet structure is provided at the top of the spray bar, the water output by the self-cleaning water outlet structure flows along the direction of the top of the spray bar towards one end of the spray bar, and flows downward along the walls on both sides of the spray bar after being blocked by the limiting component provided on the fixed part; the self-cleaning water outlet structure is controlled by a water path control part to control whether water is output.

[0005] Furthermore, the self-cleaning water outlet structure includes a water inlet hole and a water outlet chamber located at the top of the spray bar. The water inlet hole is connected to the water outlet chamber, and the water outlet chamber has an opening on one side near one end of the spray bar, allowing water entering the water outlet chamber from the water inlet hole to flow out.

[0006] Furthermore, the self-cleaning water outlet structure also includes a water guide groove disposed on the top surface of the spray bar. The water guide groove is located on the side where the opening of the water outlet chamber is located. The water flowing out of the water outlet chamber flows in from the first end of the water guide groove near the opening and flows out from the second end of the water guide groove away from the opening.

[0007] Furthermore, the width of the water guide channel gradually decreases from its first end to its second end.

[0008] Furthermore, the water outlet cavity is formed by a recess on the top surface of the spray bar and an arc-shaped guide plate disposed on the spray bar and covering the recess; the water inlet is located on the bottom surface of the recess.

[0009] Furthermore, the arc-shaped guide plate is snapped together with the spray bar.

[0010] Furthermore, one end of the spray bar is the front end of the spray bar; the limiting component is located at the front of the fixed part; the limiting component is an arc-shaped pressure cap located above the spray bar.

[0011] Furthermore, it also includes a water circuit control section, which controls whether the self-cleaning water outlet structure outputs water.

[0012] Furthermore, the water circuit control section has a water inlet and two control states, one state in which the water inlet is connected to the self-cleaning water outlet structure and the flushing water circuit, and the other state in which the water inlet is connected to the flushing water circuit.

[0013] Furthermore, the self-cleaning water outlet structure has a water inlet hole provided on the spray bar, and the water circuit control part includes a water circuit switching block, which has the water inlet, a first water outlet connected to the water inlet, and a second water outlet connected to the water inlet. The second water outlet is connected to the flushing water circuit. The water circuit switching block is slidably mounted on the spray bar along the sliding direction of the spray bar, and by sliding relative to the spray bar, the first water outlet is offset from or connected to the water inlet hole.

[0014] Furthermore, the fixed part has a first limiting part and a second limiting part. After the water path switching block slides with the spray rod in the extension direction until it is stopped by the first limiting part, the first water outlet and the water inlet are misaligned as the spray rod continues to slide in the extension direction. After the water path switching block slides with the spray rod in the retraction direction until it is stopped by the second limiting part, the first water outlet and the water inlet are restored to their corresponding connected state as the spray rod continues to slide in the retraction direction. The spray rod is driven by a drive mechanism mounted on the fixed part.

[0015] Furthermore, when the first outlet and the inlet are connected, the water inlet volume is greater than the water inlet volume of the flushing water path.

[0016] Furthermore, the water circuit switching block is fitted with a sealing gasket at its first water outlet. The sealing gasket has a deformable part that can be elastically deformed. The deformable part is provided with a water passage hole that connects to the first water outlet and an annular water groove surrounding the water passage hole. The deformable part of the sealing gasket is attached to the wall surface where the water inlet hole of the spray bar is located.

[0017] Furthermore, the deformable part of the sealing gasket is provided with an outwardly protruding annular protrusion, which is coaxial with the water passage hole, and the deformable part is attached to the wall surface where the water inlet hole of the spray bar is located through the annular protrusion.

[0018] The present invention also provides an intelligent toilet seat, including a fixed body and a spray bar device with self-cleaning function as described above, wherein the fixed part is mounted on the fixed body.

[0019] The present invention also provides a smart toilet seat, including the smart toilet seat as described above.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention provides a self-cleaning water outlet structure on the spray bar, which enables the spray bar itself to have a self-cleaning function and can thoroughly clean the top surface and side walls of the spray bar. It also solves the shortcomings of traditional spray bar devices, such as the large space occupied by the self-cleaning pipe or self-cleaning nozzle and insufficient cleaning of the spray bar.

[0022] 2. The self-cleaning water outlet structure includes the water inlet and the water outlet cavity, making the self-cleaning water outlet structure of the present invention very simple and easy to implement. It also solves the problems of inconvenient assembly, high assembly cost, poor reliability, and easy detachment that exist in existing spray bar devices with added self-cleaning pipes or nozzles. The water outlet cavity is formed by a recess on the top surface of the spray bar and an arc-shaped guide plate disposed on the spray bar and covering the recess, making the formation of the water outlet cavity simpler and more convenient.

[0023] 3. The self-cleaning water outlet structure also includes the water guide groove, which effectively guides the water output from the outlet chamber, ensuring that it flows as far as possible along the direction from the top of the spray bar to one end of the spray bar before encountering the limiting component, preventing it from prematurely flowing down the side of the spray bar when the water pressure is low. In particular, the width of the water guide groove gradually decreases from its first end to its second end, which not only accelerates the water flow but also widens the water outlet angle, allowing the top surface of the spray bar to be thoroughly cleaned.

[0024] 4. Since the water circuit control part has a water inlet, the water circuit control part has two control states. In one state, the water inlet is connected to the self-cleaning water outlet structure and the flushing water circuit. In the other state, the water inlet is connected to the flushing water circuit. This allows the present invention to make the flushing water circuit also output water when the self-cleaning water outlet structure outputs water. Thus, while self-cleaning, the residual cold water in the flushing water circuit and the water supply pipe connected to the water inlet of the water circuit control part can be discharged, and the flushing water circuit can be cleaned.

[0025] 5. The water circuit control part includes the water circuit switching block, which cooperates with the first limiting part and the second limiting part on the fixed part, so that the sliding of the water circuit switching block does not require additional power drive, thus saving more energy, and can control the water inlet of the self-cleaning water outlet structure to open and close at appropriate times.

[0026] 6. The first outlet of the water circuit switching block uses the sealing gasket and spray bar for sealing, achieving dynamic sealing and ensuring long-term effective sealing, thus solving the problem of easy aging and leakage when using O-ring seals. The deformable part of the sealing gasket has an outwardly protruding annular protrusion. The deformable part adheres to the wall surface where the water inlet of the spray bar is located through this annular protrusion. This ensures a good sealing effect while minimizing the contact area between the sealing gasket and the spray bar, thereby reducing the frictional force between the water circuit switching block and the spray bar during relative movement.

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments; however, the self-cleaning spray bar device, smart toilet seat, and smart toilet of the present invention are not limited to the embodiments. Attached Figure Description

[0028] Figure 1 This is an exploded view of the present invention;

[0029] Figure 2 This is a three-dimensional structural schematic diagram of the present invention;

[0030] Figure 3 This is a top view of the spray bar of the present invention (excluding the arc-shaped guide plate and nozzle);

[0031] Figure 4 This is a schematic diagram of the arc-shaped guide plate of the present invention;

[0032] Figure 5 This is an exploded view of the waterway switching block of the present invention;

[0033] Figure 6 This is a cross-sectional view (excluding the fixing bracket) of the waterway switching block of the present invention;

[0034] Figure 7 This is a cross-sectional view of the invention in its initial and water-inlet states;

[0035] Figure 8 This is a top view of the invention in its initial and water-inlet states;

[0036] Figure 9 The spray bar of the present invention Figure 8 A schematic diagram of the self-cleaning water flow direction at the cross-section indicated by part A in the middle;

[0037] Figure 10 This is a schematic diagram of the water flow direction of the spray bar in the initial state of the present invention;

[0038] Figure 11 This is a cross-sectional view of the invention during the extension of the spray bar;

[0039] Figure 12 This is a top view of the invention during the extension of the spray bar;

[0040] Figure 13 This is a cross-sectional view of the invention when the spray bar is extended forward into position;

[0041] Figure 14 This is a top view of the invention when the spray bar is extended forward into position;

[0042] Figure 15 This is a schematic diagram of the water flow direction when the spray bar of the present invention is extended forward to the position;

[0043] Figure 16 This is a cross-sectional view of the invention during the retraction of the spray bar;

[0044] Figure 17 This is a top view of the invention during the retraction of the spray boom;

[0045] Figure 18 This is a cross-sectional view of the invention when the spray bar is retracted into place;

[0046] Figure 19 This is a top view of the invention when the spray bar is retracted into place. Detailed Implementation

[0047] For an example, please refer to [link / reference]. Figures 1-19 As shown, the present invention provides a spray bar device with a self-cleaning function for a toilet, comprising a fixed part 1, a spray bar 2, and a water control part. The spray bar 2 is slidably mounted to the fixed part 1 along its axial direction. The spray bar 2 is provided with at least one flushing water channel 22, such as... Figure 10 , Figure 15 As shown, a self-cleaning water outlet structure 21 is provided at the top of the spray bar 2. The water output from this self-cleaning water outlet structure 21 flows along the top surface of the spray bar 2 towards one end of the spray bar 2, and after being blocked by the limiting component provided on the fixed part 1, flows downward along the walls on both sides of the spray bar 2. The self-cleaning water outlet structure 21 controls whether water is output. Specifically, the self-cleaning water outlet structure 21 has a water inlet hole 211 provided on the spray bar 2 for water intake, and the water inlet hole 211 is controlled to open and close by the water path control part. The fixed part 1 specifically includes a fixed base 11 and a guide rail 12 provided on the fixed base 11, and the spray bar 2 is slidably disposed on the guide rail 12.

[0048] In this embodiment, the self-cleaning water outlet structure 21 includes a water inlet hole 211 and a water outlet chamber located at the top of the spray bar 2. The water inlet hole 211 is connected to the water outlet chamber, and the water outlet chamber has an opening on one side near one end of the spray bar 2, so that water entering the water outlet chamber from the water inlet hole 211 flows out.

[0049] In this embodiment, the water outlet chamber is formed by a recess 212 on the top surface of the spray bar 2 and an arc-shaped guide plate 3 disposed on the spray bar 2 and covering the recess 212; the water inlet 211 is located on the bottom surface of the recess 212. The arc-shaped guide plate 3 is snap-fitted to the spray bar 2. Specifically, the arc-shaped guide plate 3 has snap-fits 31 at opposite ends, such as... Figure 4 As shown, the recess 212 of the spray bar 2 is provided with slots 2121 at both ends in the width direction of the spray bar 2, such as... Figure 3 As shown, the buckle 31 and the slot 2121 are engaged one by one.

[0050] In this embodiment, the self-cleaning water outlet structure 21 further includes a water guide groove 213 disposed on the top surface of the spray bar 2. The water guide groove 213 is located on the side where the opening of the water outlet chamber is located. Water flowing out of the water outlet chamber flows into the water guide groove 213 from the first end near the opening and flows out from the second end of the water guide groove 213 away from the opening. The width of the water guide groove 213 gradually decreases from its first end to its second end, so that the water guide groove 213 can not only accelerate the water flow, but also expand the water outlet angle, thereby enabling the top surface of the spray bar to be thoroughly cleaned. The horizontal projection of the two side walls extending along the length direction of the water guide groove 213 is approximately V-shaped.

[0051] In this embodiment, one end of the spray bar 2 is the front end of the spray bar 2, that is, the end of the spray bar 2 used for water discharge, and a nozzle 5 is provided on the end of the spray bar 2 used for water discharge. The limiting component is located at the front of the fixing part 1; the limiting component is an arc-shaped pressure cap 121 located on the spray bar 2, and the arc-shaped pressure cap 121 is specifically disposed at the front of the guide rail 12 of the fixing part 1.

[0052] In this embodiment, the water circuit control part has a water inlet 411 and two control states. In one state, the water inlet 411 is connected to the self-cleaning water outlet structure 21 and the flushing water circuit 22. In the other state, the water inlet 411 is connected to the flushing water circuit 22.

[0053] In this embodiment, the water circuit control part includes a water circuit switching block 4, which has the water inlet 411, a first water outlet 412 connected to the water inlet 411, and a second water outlet 413 connected to the water inlet 411. The second water outlet 413 is connected to the flushing water circuit 22. The water circuit switching block 4 is slidably mounted on the spray rod 2 along the sliding direction of the spray rod 2, and by sliding relative to the spray rod 2, the first water outlet 412 is offset from or connected to the water inlet 211.

[0054] In this embodiment, the fixed part 1 has a first limiting part and a second limiting part. After the water path switching block 4 slides with the spray rod 2 in the extension direction and is stopped by the first limiting part, as the spray rod 2 continues to slide in the extension direction, the first water outlet 412 and the water inlet 211 are misaligned. After the water path switching block 4 slides with the spray rod 2 in the retraction direction and is stopped by the second limiting part, as the spray rod 2 continues to slide in the retraction direction, the first water outlet 412 and the water inlet 211 return to their corresponding connected state. The cross-sectional area of ​​the water inlet 211 is larger than the cross-sectional area of ​​the flushing water path. Therefore, when the first water outlet 412 and the water inlet 211 are connected, the water inlet 211 has a larger water inlet than the flushing water path 22. To avoid affecting the reliability of the connection between the second water outlet 413 and the flushing water path 22 when the water path switching block 4 slides relative to the spray rod 2, the flushing water path 22 can be implemented using a retractable hose.

[0055] In this embodiment, the water circuit switching block 4 is fitted with a sealing gasket 42 at its first outlet 412, such as Figure 6 As shown, the sealing gasket 42 has an elastically deformable portion 421. This portion 421 has a water passage hole 422 communicating with the first water outlet 412 and an annular water groove 423 surrounding the water passage hole 422. The deformable portion 421 of the sealing gasket 42 is attached to the wall surface where the water inlet hole 211 of the spray bar 2 is located. The deformable portion 421 of the sealing gasket 42 has an outwardly protruding annular protrusion 424, which is coaxial with the water passage hole 422. The deformable portion 421 is attached to the wall surface where the water inlet hole 211 of the spray bar 2 is located through this annular protrusion 424. During the water intake process, the water in the water switching block 4 impacts the annular water groove 423 of the sealing gasket 42, causing the deformable part 421 of the sealing gasket 42 to expand outward under the impact of the water, thereby pressing the wall surface where the water inlet 211 of the spray rod 2 is located. When the water pressure is high, the deformable part 421 of the sealing gasket 42 expands outward to a greater extent, making the annular protrusion 424 of the sealing gasket 42 fit more tightly against the wall surface where the water inlet 211 of the spray rod 2 is located, thereby preventing water leakage due to excessive water pressure.

[0056] In this embodiment, as Figure 5 , Figure 6As shown, the water circuit switching block 4 specifically includes a fixed bracket 43, a three-way pipe 41, and a sealing gasket 42. The three ends of the three-way pipe 41 correspond to the inlet 411, the first outlet 412, and the second outlet 413. The three-way pipe is mounted on the fixed bracket 43, and the sealing gasket 42 is fitted onto the end of the three-way pipe 41 where the first outlet 412 is located. When the first outlet 412 is connected to the inlet hole 211, in order to make the water flow rate of the first outlet 412 greater than that of the second outlet 413, a baffle 414 is provided inside the three-way pipe 41. This baffle 414 reduces the size of the inlet of the water channel where the second outlet 413 is located inside the three-way pipe 41. A limiting block 44 is provided on the fixed bracket 43 for cooperating with the first limiting part and the second limiting part. The first limiting part is specifically composed of the arc-shaped pressure cover 121, and the second limiting part is a stop block 122 disposed at the rear of the guide rail 12.

[0057] In this embodiment, the spray bar 2 is driven by a drive mechanism mounted on the fixed part 1. The drive mechanism specifically includes a motor (not shown in the figure) and a gear transmission assembly 6. The motor is connected to the rack 23 on the spray bar 2 along its sliding direction through the gear transmission assembly 6.

[0058] The present invention provides a spray bar device with a self-cleaning function, the initial state of which is as follows: Figure 7 , Figure 8 As shown, at this time, the spray bar 2 is in the retracted state, and the first outlet 412 of the water circuit switching block 4 is connected to the inlet 211. Therefore, the self-cleaning water outlet structure 21 and the flushing water path 22 are both connected to the inlet 411 of the water circuit switching block 4. When water enters the inlet 411 of the water circuit switching block 4, the self-cleaning water outlet structure 21 and the flushing water path 22 simultaneously discharge water, as shown. Figure 10 As shown in Figure 8, due to the relatively large cross-sectional area of ​​the self-cleaning water outlet structure 21, most of the water flows out through it. Specifically, when water enters the outlet chamber from the inlet hole 211, it flows out along a certain trajectory under the guidance of the arc-shaped guide plate 3 and the guide groove 213 where the outlet chamber is located, as shown in Figure 8. Figure 8 The symbol B indicates the water flow area; when the water flows to the position of the arc-shaped pressure cap 121, it is blocked by the arc-shaped pressure cap 121 and flows downward to both sides of the spray bar 2, as shown. Figure 9 As shown, Figure 9 The middle arrow indicates the direction of water flow, thus ensuring a more thorough cleaning of the walls on both sides of the spray bar 2. When the spray bar 2 extends forward, the water path switching block 4 moves forward with it, ensuring that each position of the spray bar 2 is cleaned by water flowing from the self-cleaning water outlet structure 21 at the position of the arc-shaped pressure cap 121. Figure 11 , Figure 12 As shown, Figure 12In the diagram, label C indicates the water flow area. During this process, since the flushing water path 22 is also in the water outlet state, the residual cold water in the water supply pipe connected to the inlet 411 of the flushing water path 22 and the water path switching block 4 can be discharged, and the flushing water path can be cleaned.

[0059] When the water path switching block 4 moves forward with the spray bar 2 and is stopped by the arc-shaped pressure cover 121, the water path switching block 4 no longer slides forward with the spray bar 2; only the spray bar 2 continues to slide forward, thus causing the first water outlet 412 of the water path switching block 4 to be misaligned with the water inlet 211. Figure 13 , Figure 14 As shown, the self-cleaning water outlet structure 21 is disconnected from the water path switching block 4, and the self-cleaning state ends. At this time, the flushing water path 22 and the second water outlet 413 remain connected, as shown. Figure 15 As shown, water is output from the flushing water path 22 to achieve the flushing function.

[0060] When the rinsing is finished, the water inlet 411 of the water circuit switching block 4 stops supplying water, and the spray bar 2 slides the water circuit switching block 4 in the retracting direction until the water circuit switching block 4 is stopped by the stop block at the rear of the fixed part 1. Figure 16 , Figure 17 As shown; then, the spray bar 2 continues to slide in the retracting direction until it returns to its initial state, as shown. Figure 18 , 19 As shown, at this time, the first outlet 412 and the inlet 211 of the water circuit switching block 4 are restored to their corresponding connected state, preparing for the next self-cleaning.

[0061] This invention provides a spray bar device with a self-cleaning function. The spray bar 2 is equipped with a self-cleaning water outlet structure 21, enabling the spray bar 2 to have a self-cleaning function and thoroughly clean its top and side walls. This eliminates the need for external self-cleaning pipes or nozzles, making assembly easier, reducing labor costs, and resulting in a simpler and more aesthetically pleasing overall structure. It also avoids the problem of unreliable self-cleaning pipe assembly leading to easy detachment. Under the control of the water path switching block 4, the flushing water path 22 and the self-cleaning water outlet structure 21 can simultaneously discharge water. Therefore, this invention can simultaneously discharge residual cold water from the water supply pipe connected to the inlet 411 of the water path control section and clean the flushing water path 22.

[0062] The present invention provides a smart toilet seat, comprising a fixing body and a spray bar device with a self-cleaning function as described above. The fixing part 1 is mounted on the fixing body. The fixing body is specifically the base plate of the smart toilet seat, but is not limited thereto.

[0063] The present invention provides a smart toilet seat, which includes a smart toilet seat cover as described above, and the smart toilet seat cover is disposed on the toilet seat body of the smart toilet seat.

[0064] In other embodiments, the water circuit control section includes a three-way pipe and a control valve. One end of the three-way pipe is used for water inlet, one of the other two ends is connected to the flushing water circuit, and the other two ends are connected to the self-cleaning water outlet structure through the control valve. The control valve can be a solenoid valve or a check valve, etc.

[0065] The present invention provides a spray bar device with self-cleaning function, an intelligent toilet seat, and an intelligent toilet. The parts not described herein are the same as or can be implemented using existing technologies.

[0066] The above embodiments are only used to further illustrate the self-cleaning spray bar device, smart toilet seat, and smart toilet of the present invention. However, the present invention is not limited to the embodiments. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the technical solution of the present invention.

Claims

1. A spray bar device with a self-cleaning function, comprising a fixed part and a spray bar, the spray bar being slidably mounted to the fixed part along its axial direction, the spray bar being provided with at least one rinsing water channel; characterized in that: The top of the spray bar is equipped with a self-cleaning water outlet structure. The water output by the self-cleaning water outlet structure flows along the top of the spray bar towards one end of the spray bar, and after being blocked by the limiting component on the fixed part, it flows downward along the walls on both sides of the spray bar. It also includes a water circuit control section, which includes a water circuit switching block. The water circuit switching block has a water inlet, a first water outlet connected to the water inlet, and a second water outlet connected to the water inlet. The second water outlet is connected to the flushing water circuit. The self-cleaning water outlet structure has a water inlet hole provided on the spray bar. The fixing part has a first limiting part and a second limiting part. After the water circuit switching block slides in the extension direction with the spray bar until it is stopped by the first limiting part, as the spray bar continues to slide in the extension direction, the first water outlet and the water inlet hole are misaligned. After the water path switching block slides in the retraction direction with the spray bar until it is stopped by the second limiting part, as the spray bar continues to slide in the retraction direction, the first water outlet and the water inlet are restored to the corresponding connection state.

2. The spray bar device with self-cleaning function according to claim 1, characterized in that: The self-cleaning water outlet structure includes a water inlet hole and a water outlet chamber located at the top of the spray bar. The water inlet hole is connected to the water outlet chamber, and the water outlet chamber has an opening on one side near one end of the spray bar, allowing water entering the water outlet chamber from the water inlet hole to flow out.

3. The spray bar device with self-cleaning function according to claim 2, characterized in that: The water outlet chamber is formed by a recess on the top surface of the spray bar and an arc-shaped guide plate on the spray bar that covers the recess; the water inlet is located on the bottom surface of the recess.

4. The spray bar device with self-cleaning function according to claim 3, characterized in that: The arc-shaped guide plate is snapped together with the spray bar.

5. The spray bar device with self-cleaning function according to claim 2, characterized in that: The self-cleaning water outlet structure also includes a water guide groove on the top surface of the spray bar. The water guide groove is located on the side where the opening of the water outlet chamber is located. The water flowing out of the water outlet chamber flows in from the first end of the water guide groove near the opening and flows out from the second end of the water guide groove away from the opening.

6. The spray boom device with self-cleaning function according to claim 5, characterized in that: The width of the water guide channel gradually decreases from its first end to its second end.

7. The spray boom device with self-cleaning function according to claim 1, characterized in that: One end of the spray bar is the front end of the spray bar; the limiting component is located at the front of the fixed part; the limiting component is an arc-shaped pressure cap located above the spray bar.

8. The spray bar device with self-cleaning function according to claim 1, characterized in that: The water circuit control section has two control states. In one state, the water inlet is connected to the self-cleaning water outlet structure and the flushing water circuit. In the other state, the water inlet is connected to the flushing water circuit.

9. The spray bar device with self-cleaning function according to claim 8, characterized in that: The water path switching block has a second water outlet connected to the water inlet, and the second water outlet is connected to the flushing water path; the water path switching block is slidably mounted on the spray rod along the sliding direction of the spray rod, and by sliding relative to the spray rod, the first water outlet is offset from or connected to the water inlet.

10. The spray bar device with self-cleaning function according to claim 9, characterized in that: The spray bar is driven by a drive mechanism mounted on the fixed part.

11. The spray bar device with self-cleaning function according to claim 9, characterized in that: The water circuit switching block is fitted with a sealing gasket at its first water outlet. The sealing gasket has a deformable part that can be elastically deformed. The deformable part is provided with a water passage hole that connects to the first water outlet and an annular water groove surrounding the water passage hole. The deformable part of the sealing gasket is attached to the wall surface where the water inlet hole of the spray bar is located.

12. The spray bar device with self-cleaning function according to claim 11, characterized in that: The deformable part of the sealing gasket has an outwardly protruding annular protrusion. This annular protrusion is coaxial with the water passage hole, and the deformable part is attached to the wall surface where the water inlet hole of the spray bar is located through this annular protrusion.

13. A smart toilet seat, comprising a fixing body, characterized in that: It also includes a spray bar device with a self-cleaning function as described in any one of claims 1-12, wherein the fixed part is attached to the fixed body.

14. A smart toilet, characterized in that: Including the smart toilet seat as described in claim 13.

Images