Anti-rebound damper of electric closestool and electric closestool

Abstract

The electric closestool anti-rebound damper comprises a shell and a rotating shaft, an opening is formed in the top of the shell, two ribs are oppositely arranged on the inner wall of the shell at intervals, the middle portion of the rotating shaft is of a step structure, and the lower end of the rotating shaft is of a blade structure; the two end faces of the blade structure are in near-zero clearance fit with the inner wall of the shell, the two sides of the middle of the blade structure are of cambered surface structures, the blade structure is rotatably arranged in the shell, the shell is divided into four cavities through the blade structure and the two ribs, and the four cavities are filled with silicone oil. Gaps for silicone oil to pass through are formed between the end faces of the two ribs and the cambered surface structures of the blade structures, a circular mounting groove is formed in the bottom of the inner wall of the shell, and one end of the rotating shaft is arranged in the circular mounting groove. The closestool cover plate can be prevented from rebounding, the user experience effect is improved, and the risk of fatigue fracture of the supporting shaft caused by rebounding of the cover plate is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen and bathroom accessories, and in particular to an anti-rebound damper for an electric toilet and an electric toilet. Background Art

[0002] Current electric toilets are powered by a motor to open and close. The structure consists of two rotating hinges on the lid, one of which is connected to the motor, while the other is supported by a plastic or metal shaft. During operation, the motor powers the lid open. When it reaches an angle between 85° and 110° (this angle varies depending on the user), the motor disconnects, and the lid automatically opens to its maximum angle by inertia. However, the lid already has a certain speed, and when it reaches its maximum angle, it will collide with the speed, causing it to bounce back and forth (similar to a spring effect), which is not a very pleasant feeling.

[0003] Because the other end of the cover hinge is supported by a circular shaft, when the motor is disconnected, the cover's speed is not buffered, causing collisions and a continuous rebound effect, which finally comes to rest after multiple rebounds. This is not a very pleasant feeling and can easily cause fatigue and fracture of the hinge over time. Summary of the Invention

[0004] The main purpose of the present invention is to propose an anti-rebound damper for an electric toilet and an electric toilet, which aims to replace the existing circular support shaft with a damper. When the motor is disconnected, the damper will generate a buffering force to buffer the speed of the cover, so that it will finally open to the maximum angle position at a lower speed, thereby avoiding adverse effects such as rebound caused by the speed impact.

[0005] To achieve the above-mentioned purpose, the present invention proposes an anti-rebound damper for an electric toilet, comprising: a shell and a rotating shaft, wherein the top of the shell is open, and two ribs are arranged on the inner wall of the shell at relative intervals, the middle part of the rotating shaft is a step structure, and the lower end of the rotating shaft is a blade structure, and the two end surfaces of the blade structure are matched with the inner wall of the shell with a nearly zero gap, and the middle two sides of the blade structure are arc structures, and the blade structure can be rotatably arranged in the shell, and the blade structure and the two ribs divide the shell into four chambers, and the four chambers are filled with silicone oil, and there is a gap for silicone oil to pass between the end surfaces of the two ribs and the arc structure of the blade structure, and a circular mounting groove is provided at the bottom of the inner wall of the shell, and one end of the rotating shaft is arranged in the circular mounting groove.

[0006] An improved technical solution of the present invention is that the bottom of the shell is a flat structure, the upper end of the rotating shaft is a flat structure, the flat part of the bottom of the shell is connected to the toilet seat, and the flat part of the upper end of the rotating shaft is connected to the toilet cover.

[0007] An improved technical solution of the present invention is that it also includes a gasket, a sealing ring and an end cover. A stop is provided at the upper end of the inner wall of the outer cylinder, and the step structure of the rotating shaft is provided on the stop. An installation groove for installing the sealing ring is opened on the rotating shaft above the step structure along the circumferential direction. The gasket is provided on the step structure, and the end cover is provided between the inner wall of the outer shell and the sealing ring.

[0008] An improved technical solution of the present invention is that the end cover and the shell are fixed by ultrasonic welding.

[0009] To achieve the above-mentioned object, the present invention further provides an electric toilet, which includes the electric toilet anti-rebound damper as described above.

[0010] The beneficial effects of the electric toilet anti-rebound damper and the electric toilet of the present invention are:

[0011] The present invention, through the above technical scheme, includes: a shell and a rotating shaft, wherein the top of the shell is open, and two ribs are relatively spaced apart on the inner wall of the shell, the middle part of the rotating shaft is a step structure, and the lower end of the rotating shaft is a blade structure, and the two end surfaces of the blade structure are matched with the inner wall of the shell with a nearly zero gap, and the middle two sides of the blade structure are arc structures, and the blade structure can be rotatably arranged in the shell, and the blade structure and the two ribs divide the shell into four chambers, and the four chambers are filled with silicone oil. There is a gap for silicone oil to pass between the end surfaces of the two ribs and the arc structure of the blade structure, when the blade structure rotates in a first direction in the shell, the gap changes from small to large, and when the blade structure rotates in a second direction opposite to the first direction in the shell, the gap changes from large to small, thereby adjusting the flow rate of the silicone oil passing through the gap, which can avoid the toilet cover from rebounding, increase the user experience, and avoid the risk of fatigue fracture of the support shaft caused by the rebound of the cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0013] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the anti-rebound damper for an electric toilet of the present invention;

[0014] Figure 2 This is a front view of a preferred embodiment of the anti-rebound damper for an electric toilet of the present invention;

[0015] Figure 3 yes Figure 2 Cross-sectional view in the AA direction;

[0016] Figure 4 yes Figure 3 A magnified schematic diagram of part B in the middle;

[0017] Figure 5 This is a top view of a preferred embodiment of the anti-rebound damper for an electric toilet of the present invention:

[0018] Figure 6 yes Figure 5 Cross-sectional view in the AA direction;

[0019] Figure 7 This is a schematic diagram of the exploded structure of a preferred embodiment of the anti-rebound damper for an electric toilet of the present invention;

[0020] Figure 8 It is a schematic diagram of the overall structure of the rotating shaft;

[0021] Figure 9 It is the main view of the axis of rotation;

[0022] Figure 10 It is a bottom view of the rotation axis.

[0023] Description of Figure Numbers:

[0024] Shell 10:

[0025] Rotating shaft 20: step structure 201; blade structure 202, both end surfaces 203 of the blade structure;

[0026] Ribs 30: end surfaces 301 of two ribs; gap 302.

[0027] Gasket 40:

[0028] Sealing ring 50:

[0029] End cap 60.

[0030] The functional features and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0032] Please refer to Figures 1 to 10 The present invention proposes an anti-rebound damper for an electric toilet. A preferred embodiment of the anti-rebound damper for an electric toilet of the present invention includes a shell 10 and a rotating shaft 20, wherein the top of the shell 10 is open, and two ribs 30 are arranged on the inner wall of the shell 10 at relative intervals. The middle part of the rotating shaft 20 is a step structure 201, and the lower end of the rotating shaft 20 is a blade structure 202. The two end surfaces 203 of the blade structure 202 are matched with the inner wall of the shell 10 with a nearly zero gap 302. The middle two sides of the blade structure 202 are arc structures. The blade structure 202 can be rotatably arranged in the shell 10. The blade structure 202 and the two ribs 30 divide the shell 10 into four chambers. The four chambers are filled with silicone oil. There is a passage for silicone oil to pass between the end surfaces 301 of the two ribs 30 and the arc structure of the blade structure 202. When the blade structure 202 rotates in a first direction within the housing, the gap 302 changes from small to large. When the blade structure 202 rotates in a second direction opposite to the first direction within the housing 10, the gap 302 changes from large to small, thereby adjusting the impedance of the silicone oil passing through the gap 302 to the blade structure 202. When the gap 302 changes from small to large, the impedance of the silicone oil passing through the gap 302 to the blade structure 202 changes from large to small. Conversely, when the gap 302 changes from large to small, the impedance of the silicone oil passing through the gap 302 to the blade structure 202 changes from small to large, thereby avoiding the rebound of the toilet cover, increasing the user experience, and avoiding the risk of fatigue fracture of the support shaft due to the rebound of the cover.

[0033] It should be noted that the “gradual change” described in this embodiment refers to the distance between the arc surface structure 202 and the inner wall of the housing 10 changing from small to large or from large to small.

[0034] In this embodiment, the bottom of the shell 10 is a flat structure, the upper end of the rotating shaft 20 is a flat structure, the flat part of the bottom of the shell 10 is connected to the toilet seat, and the flat part of the upper end of the rotating shaft 20 is connected to the toilet cover.

[0035] A circular mounting groove is defined at the bottom of the inner wall of the housing 10 , and one end of the rotating shaft 20 is disposed in the circular mounting groove.

[0036] In this embodiment, the anti-rebound damper of the electric toilet also includes a gasket 40, a sealing ring 50 and an end cover 60. A stopper is provided at the upper end of the inner wall of the outer cylinder, and the step structure 201 of the rotating shaft 20 is provided on the stopper. An installation groove for installing the sealing ring 50 is opened on the rotating shaft 20 along the circumferential direction above the step structure 201. The gasket 40 is provided on the step structure 201, and the end cover 60 is provided between the inner wall of the outer shell 10 and the sealing ring 50.

[0037] In this embodiment, the end cover 60 and the housing 10 are fixed by ultrasonic welding.

[0038] The structure and working principle of the anti-rebound damper of the electric toilet of the present invention are further elaborated below.

[0039] The electric toilet anti-rebound damper of the present invention uses a rotating shaft 20 and a shell 10 as support. The flat part of the bottom of the shell 10 is connected to the toilet seat as a fixed surface, and the flat part of the rotating shaft 20 is connected to the flat hole of the toilet cover, thereby replacing the existing circular support shaft.

[0040] The two end faces of the blades of the rotating shaft 20 and the inner wall of the housing 10 form near-zero clearance 302 mating surfaces. The curved surface structure of the rotating shaft 20 mates with the two mating surfaces of the two ribs 30 within the housing 10. During assembly, a suitable amount of silicone oil of appropriate viscosity is injected into the housing 10 as a viscous fluid. A sealing ring 50 prevents silicone oil leakage. The end cap 60 is securely welded to the housing 10 via ultrasonic welding. As a result, the blades of the rotating shaft 20 and the ribs 30 within the housing 10 divide the inner bore of the housing 10 into four chambers: chamber a, chamber b, chamber c, and chamber d. Chamber a and chamber b form a group, and chamber c and chamber d form a group. During operation, when the cover is opened, the cover drives the rotating shaft 20 to rotate. The clockwise rotation of the rotating shaft 20 squeezes the silicone oil in chambers c and d, allowing it to flow through the gap 302 between the end faces 301 of the two ribs 30 and the curved surface structure of the blade structure 202 into chambers a and b. Since the silicone oil flows through a very small gap 302, in order to make the silicone oil flow through quickly, it is necessary to apply a larger external force, so that the silicone oil will inevitably generate resistance to the rotating shaft 20. The rotating shaft 20 will transfer this resistance to the cover plate connected to it, thereby having a buffering effect on the cover plate; and vice versa.

[0041] According to the different damping requirements at different angles, the present invention designs different gaps 302 between the arc structure of the rotating shaft 20 and the end faces 301 of the two ribs 30 of the housing 10 at different angles. This can prevent the cover from rebounding without adding extra burden to the motor.

[0042] It should be noted that, in the present invention, the opening or closing of the cover requires motor drive. The present invention designs the gap 302 between the arc structure of the rotating shaft 20 and the end faces 301 of the two ribs 30 of the outer shell 10 to change with the angle. When the cover is opened from 0° to the motor disconnection stage under the action of the motor, the damping provided by the damper will be very small. When the motor is disconnected from power, the cover will continue to rotate due to inertia. At this time, the damper will increase the damping because the internal fitting gap 302 becomes smaller, so as to have a buffering effect on the cover, thereby avoiding the cover from rebounding, increasing the user experience effect, and avoiding the risk of fatigue fracture of the support shaft due to the rebound of the cover.

[0043] The anti-rebound damper for the electric toilet proposed by the present invention does not add too much extra burden to the motor, thereby avoiding the risk of needing to replace a larger motor.

[0044] The damping force of the anti-rebound damper of the electric toilet proposed by the present invention will change due to the opening speed of the cover plate. The faster the speed, the greater the damping force generated by the damper, and vice versa.

[0045] In addition, the present invention can change the viscosity of the silicone oil (the greater the viscosity, the worse the fluidity of the silicone oil), easily meeting the user's needs for cover plates of different specifications.

[0046] In summary, the beneficial effects of the anti-rebound damper of the electric toilet of the present invention are:

[0047] The present invention, through the above technical scheme, includes: a shell and a rotating shaft, wherein the top of the shell is open, and two ribs are relatively spaced apart on the inner wall of the shell, the middle part of the rotating shaft is a step structure, and the lower end of the rotating shaft is a blade structure, and the two end faces of the blade structure are matched with the inner wall of the shell with a nearly zero gap, and the middle two sides of the blade structure are arc structures, and the blade structure can be rotatably arranged in the shell, and the blade structure and the two ribs divide the shell into four chambers, and the four chambers are filled with silicone oil, and there is a gap for silicone oil to pass through between the end faces of the two ribs and the arc structure of the blade structure, when the blade structure rotates in a first direction in the shell, the gap changes from small to large, and when the blade structure rotates in a second direction opposite to the first direction in the shell, the gap changes from large to small, thereby adjusting the flow rate of the silicone oil passing through the gap, which can avoid the cover plate rebound, increase the user experience effect, and avoid the risk of fatigue fracture of the support shaft caused by the cover plate rebound.

[0048] To achieve the above objectives, the present invention also proposes an electric toilet, which includes the electric toilet anti-rebound damper as described in the above embodiment. The structure and working principle of the electric toilet anti-rebound damper have been explained in detail above and will not be repeated here.

[0049] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An anti-rebound damper for an electric toilet, characterized in that: include: The outer shell and the rotating shaft are provided with two ribs at relative intervals on the inner wall of the outer shell, the middle part of the rotating shaft is a step structure, and the lower end of the rotating shaft is a blade structure. The two end surfaces of the blade structure are matched with the inner wall of the outer shell with a nearly zero clearance. The middle two sides of the blade structure are mirror-symmetrical gradient arc structures. The blade structure can be rotatably arranged in the outer shell. The blade structure and the two ribs divide the outer shell into four chambers. The four chambers are filled with silicone oil. There is a gap between the end surfaces of the two ribs and the arc structure of the blade structure for silicone oil to pass through. When the blade structure rotates in a first direction in the outer shell, the gap changes from small to large. When the blade structure rotates in a second direction opposite to the first direction in the outer shell, the gap changes from large to small. A circular mounting groove is provided at the bottom of the inner wall of the outer shell, and one end of the rotating shaft is arranged in the circular mounting groove.

2. The anti-rebound damper for an electric toilet according to claim 1, characterized in that: The bottom of the shell is a flat structure, the upper end of the rotating shaft is a flat structure, the flat part of the bottom of the shell is connected to the toilet seat, and the flat part of the upper end of the rotating shaft is connected to the toilet cover.

3. The anti-rebound damper for an electric toilet according to claim 1, characterized in that: It also includes a gasket, a sealing ring and an end cover. A stop is provided at the upper end of the inner wall of the outer cylinder, and the step structure of the rotating shaft is provided on the stop. An installation groove for installing the sealing ring is opened on the rotating shaft above the step structure along the circumferential direction. The gasket is provided on the step structure, and the end cover is provided between the inner wall of the outer shell and the sealing ring.

4. The anti-rebound damper for an electric toilet according to claim 3, characterized in that: The end cover and the shell are fixed by ultrasonic welding.

5. An electric toilet, characterized in that: The electric toilet includes the electric toilet anti-rebound damper according to any one of claims 1 to 4.

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