Toilet seat structure capable of automatically returning

Abstract

The invention discloses a toilet seat structure capable of automatically returning, which comprises a toilet seat, a control box and a rotating main shaft are arranged at the rear end of the toilet seat, and a sucker, an overturning driving frame, a torsion spring and a gas flow control device are arranged in the control box. The suction cup can be adsorbed to the top face of the gas flow control device and located above the gas flow control hole, after a user uses the toilet bowl, the gas flow control device can control the flow of air entering the suction cup through the gas flow control hole, and when enough air enters the suction cup, the suction cup is closed. The suction cup can release the suction state with the gas flow control device, and the toilet seat can turn upwards to reset under the rebound action of the torsional spring, so that after a user uses the toilet, the toilet seat can directly leave, and the toilet seat can automatically bounce to recover to the standing state after a period of time, and the toilet seat is convenient to use and low in cost.

Description

Technical Field

[0001] The present invention relates to the technical field of toilets, and more specifically, to a toilet seat structure that can automatically return to its original position. Background Art

[0002] Toilets are widely used in places such as homes and hotels and are an essential sanitary ware. Among them, existing toilets generally include components such as a toilet body, a toilet lid, or a toilet seat. Most toilet seats need to be manually lifted or lowered, and users need to touch the toilet seat with their hands, which is easy to get contaminated with bacteria. With the development of technology, some intelligent toilets that do not require manual touching of the toilet seat have also emerged on the market. For example, a toilet with a toilet seat that can automatically flip upward and its control method, the patent number of which is CN 111173088 B in China. Such toilets are electrically controlled and easy to operate. However, the cost of such toilets is high, and they are driven by electricity, resulting in high energy consumption and easy to malfunction. Summary of the Invention

[0003] The purpose of the present invention is to overcome the above-mentioned defects in the prior art, and provide a toilet seat structure that is novel in structure, reasonable in design, combines mechanical principles, does not require electronic control, is convenient to use, has a low cost, and can automatically return to its original position.

[0004] To achieve the above purpose, the present invention provides a toilet seat structure that can automatically return to its original position, including a toilet seat. A control box and a rotating main shaft are provided at the rear end of the toilet seat. The rotating main shaft is rotatably installed inside the control box. The left and right ends of the rotating main shaft respectively pass through the left and right sides of the control box and are connected to the left and right sides of the rear end of the toilet seat. A suction cup, a flipping drive frame, a torsion spring, and a gas flow control device are provided inside the control box. The suction cup is installed on the rotating main shaft through the flipping drive frame. The torsion spring is installed on the rotating main shaft. The first elastic arm of the torsion spring is connected to the flipping drive frame, and the second elastic arm of the torsion spring is connected to the control box. The gas flow control device is fixedly installed below the suction cup. A gas flow control hole is provided on the gas flow control device. When the suction cup follows the toilet seat and flips downward, it can adsorb on the top surface of the gas flow control device and is located above the gas flow control hole. When enough air enters the suction cup, the suction cup can release the adsorption state, and the toilet seat can flip upward and reset under the elastic return action of the torsion spring.

[0005] Preferably, the gas flow control device includes a contact panel and a gas flow control diaphragm. The gas flow control hole penetrates through the top and bottom surfaces of the contact panel. The gas flow control diaphragm is connected to the bottom surface of the contact panel and is located directly below the gas flow control hole.

[0006] Preferably, the contact panel is made of acrylic board, and the gas flow control diaphragm is made of expanded polytetrafluoroethylene diaphragm.

[0007] Preferably, a double-sided adhesive tape is connected between the contact panel and the gas flow control diaphragm.

[0008] Preferably, the aperture diameter of the gas flow control hole is set to 0.6 mm.

[0009] Preferably, the flipping drive frame includes a main drive seat, a suction cup flipping seat, a fixed base and drive pull rods. The main drive seat is fixedly installed on the rotating main shaft. The suction cup flipping seat is rotatably installed in the middle of the main drive seat through a first rotating shaft member. The suction cup is installed in the middle of the lower end of the suction cup flipping seat. The fixed base is fixedly installed inside the control box and is located at the rear side below the suction cup flipping seat. There are two drive pull rods located on the left and right sides of the suction cup. The front and rear ends of the two drive pull rods are respectively rotatably connected to the suction cup flipping seat and the fixed base through second rotating shaft members.

[0010] Preferably, the control box includes a lower box body and an upper box cover. The upper box cover is fixedly connected to the lower box body, and a waterproof rubber ring is provided between the upper box cover and the lower box body.

[0011] Preferably, a desiccant is provided inside the control box.

[0012] Preferably, a bottom washer is provided at the bottom of the control box, and fixing bolts for fixedly installing with the toilet are provided on both sides of the bottom of the control box.

[0013] Preferably, the rotating main shaft is rotatably connected to the left and right sides of the control box through bearings, and the left and right ends of the rotating main shaft are respectively connected to the left and right sides of the rear end of the toilet seat through fixing blocks.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] The structure of the present invention is novel and reasonable in design. Combining mechanical principles, it does not require electronic control. When the user uses the toilet, the suction cup can follow the toilet seat and flip downwards. The suction cup can adsorb on the top surface of the gas flow control device and is located above the gas flow control hole, so as to be completely closed with the gas flow control device. When the user finishes using the toilet, the gas flow control device can control the flow of air entering the inside of the suction cup through the gas flow control hole. When enough air enters the suction cup, the suction cup can release the adsorption state with the gas flow control device, and the toilet seat can flip upwards and reset under the action of the springback of the torsion spring. In this way, when the user finishes using the toilet, they can directly leave, and the toilet seat can automatically pop up and return to the upright state after a period of time. Its use is very convenient and the cost is greatly reduced. Description of the Drawings

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 is a schematic structural diagram of the toilet seat structure provided by the embodiment of the present invention in a horizontal state;

[0018] Figure 2 is an exploded view of the toilet seat structure provided by the embodiment of the present invention;

[0019] Figure 3 is a schematic structural diagram of the control box provided by the embodiment of the present invention when the upper box cover is opened;

[0020] Figure 4 is a schematic internal structure diagram of the control box provided by the embodiment of the present invention (when the toilet seat is in a horizontal state);

[0021] Figure 5 is an exploded view of the gas flow control device provided by the embodiment of the present invention;

[0022] Figure 6 is a schematic structural diagram of the toilet seat structure provided by the embodiment of the present invention in an erected state;

[0023] Figure 7 is a schematic internal structure diagram of the control box provided by the embodiment of the present invention (when the toilet seat is in an erected state);

[0024] Figure 8 is an assembly diagram of the suction cup and the flipping drive frame provided by the embodiment of the present invention. Detailed implementation manners

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0026] Please refer to Figure 1 、 Figure 2 and Figure 3, an embodiment of the present invention provides a toilet seat structure that can automatically return to its original position, including a toilet seat 1. A control box 2 and a rotating main shaft 3 are provided at the rear end of the toilet seat 1. The rotating main shaft 3 is rotatably installed inside the control box 2. The left and right ends of the rotating main shaft 3 respectively pass through the left and right sides of the control box 2 and are connected to the left and right sides of the rear end of the toilet seat 1. Inside the control box 2, there are a suction cup 4, a flipping drive frame 5, a torsion spring 6, and a gas flow control device 7. The following will explain each component of this embodiment in detail with reference to the accompanying drawings.

[0027] As Figure 3 and Figure 4 shown, the rotating main shaft 3 can be rotatably connected to the left and right sides of the control box 2 through bearings 10, and the rotating main shaft 3 can rotate following the toilet seat 1. The left and right ends of the rotating main shaft 3 can be respectively connected to the left and right sides of the rear end of the toilet seat 1 through fixing blocks 11. Specifically, during installation, the left and right ends of the rotating main shaft 3 are respectively provided with square ends, and the square ends of the rotating main shaft 3 can be inserted into the direction positioning holes of the fixing blocks 11. The fixing blocks 11 can be detachably connected to the toilet seat 1 through screws.

[0028] As Figure 3 shown, the control box 2 can include a lower box body 21 and an upper box cover 22. The upper box cover 22 is fixedly connected to the lower box body 21, and the upper box cover 22 is located on the top of the lower box body 21.

[0029] As Figure 4 , Figure 7 and Figure 8 shown, the suction cup 4 can be installed on the rotating main shaft 3 through the flipping drive frame 5. Specifically, the flipping drive frame 5 can include a main drive seat 51, a suction cup flipping seat 52, a fixed base 53, and a drive pull rod 54. The main drive seat 51 is fixedly installed on the rotating main shaft 3. The suction cup flipping seat 52 is rotatably installed in the middle of the main drive seat 51 through a first rotating shaft member 55 (such as a shaft body). The suction cup 4 is installed in the middle of the lower end of the suction cup flipping seat 52. The fixed base 53 is fixedly installed at the bottom inside the control box 2 and is located at the rear side below the suction cup flipping seat 52. There are two drive pull rods 54 located on the left and right sides of the suction cup 4. The front and rear ends of the two drive pull rods 54 are respectively rotatably connected to the suction cup flipping seat 52 and the fixed base 53 through a second rotating shaft member 56 (such as a shaft body, rivet, or screw, etc., rotating members).

[0030] When the rotating main shaft 3 rotates, the main drive seat 51 and the suction cup flipping seat 52 can rotate following the rotating main shaft 3. Since the position of the fixed base 53 does not change, at this time, the drive pull rod 54 connected between the suction cup flipping seat 52 and the fixed base 53 will continue to pull the suction cup flipping seat 52 to perform a relative flipping movement relative to the main drive seat 51, enabling the suction cup to adjust the angle and better vertically adsorb on the top surface of the gas flow control device 7.

[0031] As Figure 4 shown, the torsion spring 6 is installed on the rotating main shaft 3 and is located on the left and right sides of the main drive seat 51. The first elastic arm of the torsion spring 6 can be connected to the flipping drive frame 5 (such as being inserted into the side hole of the main drive seat 51), and the second elastic arm of the torsion spring 6 can be connected to the control box 2 (such as being fixedly connected by screws). In this embodiment, setting two torsion springs 6 can maintain uniform force. In addition, the surface of the torsion spring 6 can be galvanized, which can make the torsion spring more durable.

[0032] As Figure 4 and Figure 5 shown, the gas flow control device 7 can be located below the suction cup 4. The gas flow control device 7 can include a contact panel 71 and a gas flow control diaphragm 72. A number of gas flow control holes 70 penetrating through the top and bottom surfaces are provided on the contact panel 71. The gas flow control diaphragm 72 is connected to the bottom surface of the contact panel 71 and is located directly below the gas flow control holes 70. The gas flow control diaphragm 72 can control the air flow through the gas flow control holes 70, thereby controlling the separation time between the suction cup 4 and the contact panel 71.

[0033] During specific implementation, the contact panel 71 can preferably be set as an acrylic plate with a thickness of 3 mm, and the gas flow control diaphragm 72 can preferably be set as an expanded polytetrafluoroethylene diaphragm.

[0034] Through experimental tests, it is known that preferably, the aperture of the gas flow control holes 70 can be preferably set to 0.6 mm, which can make the inside of the suction cup reach the air saturation state in about 20 - 35 seconds. If the aperture is less than 0.6 mm, the return time of the toilet seat ring will be too long or sometimes it cannot return. If the aperture is greater than 0.6 mm, the air enters too fast, which is likely to damage the suction cup.

[0035] During actual installation, a double-sided tape 73 (such as a 3M double-sided tape with a thickness of 0.2 mm) can also be provided between the contact panel 71 and the gas flow control diaphragm 72. The contact panel 71 can be adhesively fixed to the inner bottom end of the control box 2 through the double-sided tape 73. In addition, the double-sided tape 73 also facilitates the adhesion of the gas flow control diaphragm 72 to the bottom of the contact panel 71.

[0036] As Figure 5 shown, when the double-sided tape 73 completely covers the area below the gas flow control holes 70 of the contact panel 71, gas flow control holes 70 also need to be provided on the double-sided tape 73. Of course, according to actual needs, in other embodiments, the double-sided tape 73 can also not cover the partial area below the gas flow control holes 70 of the contact panel 71.

[0037] It should be noted here that in addition to being fixed by double-sided tape 73, the contact panel 71 can also be fixed to the control box by screws, buckles or other fixing parts. The gas flow control diaphragm 72 can also be fixed to the bottom of the contact panel 71 by other connection methods, which is not limited to this embodiment.

[0038] As Figure 3 shown, in order to improve the waterproof and sealing performance of the control box, a waterproof rubber ring 23 can also be provided between the upper cover 22 and the lower box body 21 of the control box. The waterproof rubber ring 23 can prevent water from entering the control box during use.

[0039] As Figure 1 and Figure 2 shown, preferably, fixing bolts 9 are provided on both sides of the bottom of the control box 2. The control box 2 can be fixedly installed on the toilet through the fixing bolts 9. Preferably, a bottom gasket 8 can also be provided at the bottom of the control box 2.

[0040] As a further improvement of this embodiment, a desiccant can be additionally provided inside the control box 2. Placing a desiccant inside the control box can keep the air inside the box dry, making it difficult for hardware parts such as torsion springs, screws, and shafts to rust or oxidize.

[0041] The working principle of the present invention is as follows:

[0042] Before the toilet is used, the toilet seat 1 is in the upright state.

[0043] As Figure 1 and Figure 4 shown, when the user needs to use the toilet, the user needs to flip the toilet seat 1 down to fit onto the flat surface of the toilet. At this time, the toilet seat 1 will drive the suction cup 4 to flip downward through the rotating main shaft 3 and the flipping drive frame 5. The suction cup 4 can adsorb on the top surface of the contact panel 71 of the gas flow control device 7 and is located above the gas flow control hole 70, so as to be completely closed with the gas flow control device 7.

[0044] As Figure 6 and Figure 7 shown, when the user has finished using the toilet, the gas flow control device 7 can control the flow of air entering the inside of the suction cup 4 through the gas flow control hole 70. When enough air (reaching the saturation state) slowly enters the suction cup 4, the suction cup 4 can release the adsorption state with the gas flow control device 7. The toilet seat 1 can flip upward and reset under the elastic return of the torsion spring 6. When the user has finished using the toilet, the user can leave directly, and the toilet seat can automatically pop up and return to the upright state in about 20 - 35 seconds.

[0045] In summary, the structure of the present invention is novel and reasonably designed. Combining mechanical principles and without the need for electronic control, when the user finishes using the toilet and leaves directly, the toilet seat can automatically return to its original position, which is very convenient to use and greatly reduces the cost.

[0046] The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention shall be equivalent replacement methods and are all included in the protection scope of the present invention.

Claims

1. A toilet seat structure capable of automatically returning to its original position, comprising a toilet seat, characterized in that: A control box and a rotating main shaft are provided at the rear end of the toilet seat, and the rotating main shaft can be rotatably installed inside the control box. The left and right ends of the rotating main shaft respectively pass through the left and right sides of the control box and are connected to the left and right sides of the rear end of the toilet seat. A suction cup, a flip drive frame, a torsion spring and a gas flow control device are provided inside the control box. The suction cup is installed on the rotating main shaft through the flip drive frame, and the torsion spring is installed on the rotating main shaft. The first elastic arm of the torsion spring is connected to the flip drive frame, and the second elastic arm of the torsion spring is connected to the control box. The gas flow control device is fixedly installed below the suction cup, and a gas flow control hole is provided on the gas flow control device. When the suction cup follows the toilet seat to flip downward, it can be adsorbed on the top surface of the gas flow control device and be located above the gas flow control hole. When enough air enters the suction cup, the suction cup can release the adsorption state, and the toilet seat can flip upward and reset under the rebound action of the torsion spring.

2. The toilet seat structure capable of automatically returning to its original position according to claim 1, characterized in that: The gas flow control device comprises a contact panel and a gas flow control diaphragm, the gas flow control hole penetrates the top and bottom surfaces of the contact panel, and the gas flow control diaphragm is connected to the bottom surface of the contact panel and is located directly below the gas flow control hole.

3. The toilet seat structure capable of automatically returning to its original position according to claim 2, characterized in that: The contact panel is configured as an acrylic plate, and the gas flow control diaphragm is configured as an expanded polytetrafluoroethylene diaphragm.

4. The toilet seat structure capable of automatically returning to its original position according to claim 2, characterized in that: The contact panel and the gas flow control diaphragm are connected with double-sided adhesive.

5. The toilet seat structure capable of automatically returning to its original position according to claim 1, characterized in that: The aperture of the gas flow control hole is set to 0.6 mm.

6. The toilet seat structure capable of automatically returning to its original position according to claim 1, characterized in that: The flip drive frame includes a main drive seat, a suction cup flip seat, a fixed base and a driving rod. The main drive seat is fixedly mounted on the rotating main shaft. The suction cup flip seat is rotatably mounted on the middle part of the main drive seat through a first rotating shaft. The suction cup is mounted on the middle part of the lower end of the suction cup flip seat. The fixed base is fixedly mounted inside the control box and is located on the lower rear side of the suction cup flip seat. Two driving rods are provided and are located on the left and right sides of the suction cup. The front and rear ends of the two driving rods are rotatably connected to the suction cup flip seat and the fixed base through the second rotating shaft respectively.

7. The toilet seat structure capable of automatically returning to its original position according to claim 1, characterized in that: The control box comprises a lower box body and an upper box cover, wherein the upper box cover is fixedly connected to the lower box body, and a waterproof rubber ring is arranged between the upper box cover and the lower box body.

8. The toilet seat structure capable of automatically returning to its original position according to claim 1, characterized in that: A desiccant is arranged inside the control box.

9. The toilet seat structure capable of automatically returning to its original position according to claim 1, characterized in that: A bottom gasket is provided at the bottom of the control box, and fixing bolts for fixing the control box to the toilet are provided at both sides of the bottom of the control box.

10. The toilet seat structure capable of automatically returning to its original position according to claim 1, characterized in that: The rotating main shaft is rotatably connected to the left and right sides of the control box through bearings, and the left and right ends of the rotating main shaft are respectively connected to the left and right sides of the rear end of the toilet seat through fixed blocks.

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