Closestool cover plate capable of eliminating twisting stress of water pipe at hinge part of ring cover

Abstract

The utility model discloses a closestool cover plate capable of eliminating twisting stress of a water pipe at a hinged part of a ring cover, which comprises a seat ring and a rear shell which are hinged with each other, a flow path switching valve is arranged on the seat ring, a spray washing device and an external water inlet piece are arranged in the rear shell, and a hollow hinged shaft part is arranged at the hinged part of the seat ring and the rear shell. According to the spray washing device, two hoses penetrate through a hollow hinged shaft part to be connected with a flow path switching valve, a main water inlet pipe penetrates through the hollow hinged shaft part to be connected with the flow path switching valve, and the main water inlet pipe comprises a main pipe shell inner section arranged in the rear shell and a main pipe ring inner section arranged in the seat ring. And the inner section of the main pipe shell is U-shaped at the rear shell and is connected with an external water inlet piece. The shearing torsion of the main water inlet pipe is eliminated through the length and U-shaped extension of the main water inlet pipe of the rear shell, the situation that the upturning or downturning speed of the seat ring is retarded due to distortion of the main water inlet pipe is avoided, and the seat ring is not jammed due to the torsion of the main water inlet pipe during opening, closing and overturning.

Description

A toilet seat that can eliminate the torsional stress of the water pipe at the hinge of the seat. Technical Field

[0001] This utility model relates to a toilet seat that can eliminate the torsional stress of the water pipe at the hinge of the seat. Background Technology

[0002] This single-cooling bidet toilet seat, requiring no external power supply and using a purely mechanical valve to switch between bidet and shower spray, is simple and hygienic to use, making it a popular and well-regarded bathroom product. For example, our company previously applied for a Chinese utility model patent (CN219109291). The flushing assembly integrated into the seat cover as disclosed in U) is a rigid pipe shaft designed to connect the seat and the rear shell to a tap water supply. Water is then routed to a control valve on the side of the seat via a rotatable fitting inside the seat hinge. The control valve connects to the bidet and feminine wash spray nozzles within the flushing assembly. While the control valve is conveniently located on the side of the seat with an exposed control knob, the integrated flushing assembly requires a convex design at the rear of the seat to accommodate the protruding bidet and feminine wash nozzles. This protrusion affects the overall appearance of the seat when it is flipped up. Furthermore, after using the toilet, performing bidet, or feminine wash, water splashed onto the outer wall of the spray nozzles may collect and flow back into the seat from the protruding part. In the humid conditions of a bathroom, this can lead to bacterial growth inside the seat, affecting its hygiene.

[0003] Therefore, the rinsing components for posterior and feminine washes need to be installed inside the rear shell of the seat cover. The main water inlet from the rear shell needs to pass through the hinge shaft to the seat ring and connect to the control valve. Then, the water pipe connected to the control valve in the seat ring passes back through the hinge shaft to the rear shell and connects to the posterior and feminine wash spray lines of the rinsing components. However, since the main water inlet pipe, which makes a near right-angle turn from the rear shell to the seat ring control valve, is made of PVC braided tubing, which is relatively hard, the main water inlet pipe forms a section that is almost parallel to the hinge shaft and a section that is perpendicular to the hinge shaft. When the seat ring is flipped, the section of the main water inlet pipe that is parallel to the hinge shaft will be twisted in the rotation direction. The strong torque generated will affect the smooth opening and closing of the seat ring. Therefore, it is necessary to eliminate or reduce the torque generated by the main water inlet pipe at the hinge shaft between the rear shell and the seat ring when the seat ring is flipped. Summary of the Invention

[0004] This invention provides a toilet seat that can eliminate the torsional stress of the water pipe at the hinge of the seat, effectively solving the above-mentioned problems.

[0005] This utility model is implemented as follows:

[0006] A toilet seat that eliminates torsional stress on the water pipe at the hinge of the seat includes a seat ring and a back cover that are hinged together. A flow path switching valve is installed on the seat ring, and a spray washing device and an external water inlet are installed inside the back cover.

[0007] A hollow hinge shaft is provided at the hinge joint between the seat ring and the rear shell. The spray washing device is connected to the flow path switching valve by two hoses passing through the hollow hinge shaft. The external water inlet is connected to the flow path switching valve by a main water inlet pipe passing through the hollow hinge shaft. The main water inlet pipe includes a main pipe shell inner section set in the rear shell and a main pipe ring inner section set in the seat ring. The main pipe shell inner section is U-shaped in the rear shell and is connected to the external water inlet.

[0008] As a further improvement, the spray washing device includes a buttock wash spray bar sleeve and a feminine wash spray bar sleeve arranged side by side in the middle of the rear housing; the buttock wash spray bar sleeve is connected to the flow path switching valve through a first hose passing through the hollow hinge shaft; the feminine wash spray bar sleeve is connected to the flow path switching valve through a second hose passing through the hollow hinge shaft.

[0009] As a further improvement, the diameter of the hollow hinge shaft is greater than the sum of the outer diameter of the main water inlet pipe, the outer diameter of the first hose, and the outer diameter of the second hose.

[0010] As a further improvement, the inner section of the main shell includes an inner hinge shaft parallel section arranged parallel to the axial direction of the hollow hinge shaft and an inner hinge shaft perpendicular section arranged perpendicular to the axial direction of the hollow hinge shaft. The rear shell is in the width direction along the axial direction of the hollow hinge shaft. The length of the inner hinge shaft parallel section is greater than half the width of the rear shell.

[0011] As a further improvement, the flow path switching valve protrudes from the left or right side wall of the seat ring edge.

[0012] As a further improvement, the main water inlet pipe is a PVC braided pipe, and the first and second hoses are silicone pipes.

[0013] The beneficial effects of this utility model are: a main water inlet pipe and several hoses pass freely through the hollow bushing of the seat ring and the rear shell hinge. When the seat ring flips, the inner section of the main pipe ring and the inner section of the main pipe shell rotate. Since the main water inlet pipe is U-shaped in the rear shell, the shear torque of the main water inlet pipe can be eliminated by the length of the inner section of the main pipe shell and the U-shaped extension. This avoids the main water inlet pipe from twisting and deforming, which hinders the upward or downward flipping speed of the seat ring. As a result, the seat ring is not jammed by the torque of the main water inlet pipe when it opens, closes and flips. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 is a three-dimensional structural diagram of the main water inlet pipe of this utility model, which is U-shaped and connected to the external water inlet component and the flow path switching valve, viewed from the seat ring towards the rear shell.

[0016] Figure 2 is a three-dimensional structural diagram of the main water inlet pipe of this utility model, which is U-shaped and connected to the external water inlet component and the flow path switching valve, viewed from the rear shell towards the seat ring.

[0017] Figure 3 is a partial cross-sectional view of the transverse structure of the main water inlet pipe, the first hose, and the second hose passing through the hollow hinge shaft of this utility model.

[0018] Figure 4 is a longitudinal structural cross-sectional view of the main water inlet pipe, the first hose, and the second hose passing through the hollow hinge shaft of this utility model.

[0019] The accompanying diagrams are labeled as follows:

[0020] 10. Rear shell; 11. Hollow hinge section;

[0021] 20. Seat ring;

[0022] 30. External water inlet fittings;

[0023] 40. Spray washing device; 41. Buttock washing spray bar sleeve; 42. Feminine wash spray bar sleeve;

[0024] 50. Flow path switching valve;

[0025] 60. Main inlet pipe; 61. Main pipe inner section; 611. Parallel section of inner hinge shaft; 612. Vertical section of inner hinge shaft; 62. Main pipe inner section;

[0026] 70. First hose;

[0027] 80. Second hose. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] Referring to Figures 1-3, a toilet seat that can eliminate the torsional stress of the water pipe at the hinge of the seat includes a seat ring 20 and a back cover 10 that are hinged together. A flow path switching valve 50 is provided on the seat ring 20. A spray washing device 40 and an external water inlet 30 are provided on the side wall of the back cover 10 near the flow path switching valve. A hollow hinge shaft 11 is provided at the hinge of the seat ring 20 and the back cover 10. The spray washing device 40 is formed by two flexible hoses passing through the hollow hinge shaft. The shaft 11 is connected to the flow path switching valve 50. An external water inlet 30 is provided on the side wall of the rear housing 10 near the flow path switching valve 50. The external water inlet 30 is connected to the flow path switching valve 50 by a main water inlet pipe 60 passing through the hollow hinge shaft 11. The main water inlet pipe 60 includes a main pipe housing inner section 61 provided in the rear housing 10 and a main pipe ring inner section 62 provided in the seat ring 20. The main pipe housing inner section 61 is U-shaped in the rear housing 10 and is connected to the external water inlet 30.

[0030] The structure of each component of this utility model will be described below.

[0031] Referring to Figures 1 and 2, in this embodiment, the spray washing device 40 includes a posterior wash spray bar sleeve 41 and a feminine wash spray bar sleeve 42 arranged side-by-side in the middle of the rear housing 10. The posterior wash spray bar sleeve 41 is connected to the flow path switching valve 50 through a first hose 70 passing through the hollow hinge shaft 11. The feminine wash spray bar sleeve 42 is connected to the flow path switching valve 50 through a second hose 80 passing through the hollow hinge shaft 11. The flow path switching valve 50 enables the switching of the posterior wash and feminine wash spray bar water paths.

[0032] Referring to Figure 4, the diameter of the hollow hinge portion 11 is larger than the sum of the outer diameters of the main water inlet pipe 60, the first flexible hose 70, and the second flexible hose 80. This prevents the first flexible hose 70, the second flexible hose 80, and the main water inlet pipe 60 from tangling together in the hollow hinge portion 11.

[0033] Referring to Figures 1 to 3, the main pipe housing section 61 includes a parallel section 611 of the inner hinge shaft arranged parallel to the axial direction of the hollow hinge shaft portion 11 and a perpendicular section 612 of the inner hinge shaft arranged perpendicular to the axial direction of the hollow hinge shaft portion 11. The rear shell 10 is in the width direction along the axial direction of the hollow hinge shaft portion 11. The length of the parallel section 611 of the inner hinge shaft is greater than half the width of the rear shell. In one embodiment, the length of the parallel section 611 of the inner hinge shaft is two-thirds of the width of the rear shell 10 along the axial direction of the hollow hinge shaft portion 11. Extending the length of the parallel section 611 of the inner hinge shaft makes the U-shaped structure of the main pipe housing section 61 larger, further improving the ability to eliminate the torsional shear force generated by the main water inlet pipe 60 by extending along the length direction of the main water inlet pipe 60, and preventing the seat ring 20 from getting stuck due to the torque of the main water inlet pipe 60 when it opens, closes and flips.

[0034] Referring to Figures 1 to 3, the flow path switching valve 50 is protruding from the left side wall of the seat ring 20, allowing the user to operate it with one hand, which conforms to the usage habits of most toilet users. In other embodiments, the flow path switching valve 50 is located on the right side wall of the seat ring 20 or on the front side wall, without further limitation here.

[0035] The main water inlet pipe 60 is a PVC braided pipe, and the first flexible hose 70 and the second flexible hose 80 are silicone hoses. The purpose of using the PVC braided hose is to prevent the main water inlet pipe 60 from bursting due to excessive water pressure, given the high water pressure of municipal tap water and the good burst resistance of the PVC braided hose. The first flexible hose 70 and the second flexible hose 80 are silicone hoses. Silicone hoses are relatively flexible, and during the process of the seat ring 20 flipping up or falling down, the torque generated by the first flexible hose 70 and the second flexible hose 80 at the hollow hinge shaft 11 is small and insufficient to affect the smooth opening and closing of the seat ring 20.

[0036] The working principle and specific implementation steps of this utility model are explained in detail below.

[0037] Referring to Figures 1 to 3, the main water inlet pipe 60, which connects to the flow path switching valve 50 at a near right angle from the rear housing 10, is made of PVC braided tubing, which is relatively hard. The main water inlet pipe 60 forms a section that is almost parallel to the hinge shaft and a section that is perpendicular to the hinge shaft. When the seat ring 20 is flipped, the section of the main water inlet pipe 60 that is parallel to the hinge shaft will be twisted in the rotation direction. The strong torque generated will affect the smooth opening and closing of the seat ring 20. Therefore, it is necessary to eliminate or reduce the torque generated by the main water inlet pipe 60 at the hinge shaft of the rear housing 10 when the seat ring 20 is flipped.

[0038] The working principle of this utility model is as follows: A main water inlet pipe 60, a first flexible hose 70, and a second flexible hose 80 pass freely through the seat ring 20 and the hollow bushing of the rear shell hinge. The seat ring 20 flips, and the inner section 62 of the main pipe ring and the inner section 61 of the main pipe shell rotate. The length of the parallel section 611 of the inner hinge shaft is greater than half the width of the rear shell 10 along the axial direction of the hollow hinge shaft 11. The main water inlet pipe 60 is arranged in a large U-shape in the rear shell 10. The shearing torque of the main water inlet pipe 60 can be eliminated by the length of the inner section 61 of the main pipe shell and the U-shaped extension, so as to avoid the twisting and deformation of the main water inlet pipe 60 from hindering the upward or downward flipping speed of the seat ring 20, so that the seat ring 20 is not jammed by the torque of the main water inlet pipe 60 when it opens, closes and flips.

[0039] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A toilet seat that eliminates the torsional stress of the water pipe at the hinge of the seat cover, comprising a seat ring (20) and a rear shell (10) hinged together, wherein a flow path switching valve (50) is provided on the seat ring (20), and a spray washing device (40) and an external water inlet component (30) are provided inside the rear shell (10), characterized in that, A hollow hinge shaft (11) is provided at the hinge joint of the seat ring (20) and the rear shell (10). The spray washing device (40) is connected to the flow path switching valve (50) by two hoses passing through the hollow hinge shaft (11). The external water inlet (30) is connected to the flow path switching valve (50) by a main water inlet pipe (60) passing through the hollow hinge shaft (11). The main water inlet pipe (60) includes a main pipe shell inner section (61) provided in the rear shell (10) and a main pipe ring inner section (62) provided in the seat ring (20). The main pipe shell inner section (61) is U-shaped in the rear shell (10) and connected to the external water inlet (30).

2. A toilet seat according to claim 1, characterized in that, The spray washing device (40) includes a buttock washing spray bar sleeve (41) and a feminine washing spray bar sleeve (42) arranged side by side in the middle of the rear shell (10); the buttock washing spray bar sleeve (41) is connected to the flow path switching valve (50) through the hollow hinge shaft part (11) via the first hose (70); the feminine washing spray bar sleeve (42) is connected to the flow path switching valve (50) through the hollow hinge shaft part (11) via the second hose (80).

3. A toilet seat according to claim 2, characterized in that, The diameter of the hollow hinge shaft (11) is greater than the sum of the outer diameter of the main water inlet pipe (60), the outer diameter of the first hose (70), and the outer diameter of the second hose (80).

4. A toilet seat according to claim 1, characterized in that, The main shell inner section (61) includes an inner shell hinge shaft parallel section (611) arranged parallel to the axial direction of the hollow hinge shaft part (11) and an inner shell hinge shaft perpendicular section (612) arranged perpendicular to the axial direction of the hollow hinge shaft part (11). The rear shell (10) is in the rear shell width direction along the axial direction of the hollow hinge shaft part (11), and the length of the inner shell hinge shaft parallel section (611) is greater than half of the width of the rear shell.

5. A toilet seat according to claim 1, characterized in that, The flow path switching valve (50) is protruding and located on the left or right side wall of the seat ring (20).

6. A toilet seat according to claim 2, characterized in that, The main water inlet pipe (60) is a PVC braided pipe, and the first hose (70) and the second hose (80) are silicone pipes.

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