Control mechanism capable of automatically resetting

Abstract

The utility model discloses a control mechanism capable of resetting automatically, which comprises a rotating main shaft, a sucker, a turnover driving frame, a torsion spring and a gas flow control device, and is novel in structure and reasonable in design, when the rotating main shaft is stressed to rotate, the rotating main shaft can drive the sucker to turn over downwards through the turnover driving frame, and the gas flow control device can reset automatically. The suction cup can be sucked to the top face of the gas flow control device and located above the gas flow control hole, when enough air enters the suction cup, the suction cup can be released from the gas flow control device, the rotating main shaft can rotate and reset under the springback effect of the torsion spring, the mechanical principle is combined, electronic control is not needed, and the suction cup is convenient to use. The cost is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of automatic reset mechanism technology, and more specifically, to a control mechanism that can be automatically reset. Background Technology

[0002] Many products on the market today require an automatic reset function, such as toilet seats, toilet rings, and automatic doors. To achieve this function, an automatic reset mechanism is needed. For example, a toilet with an automatically flipping toilet seat and its control method, as described in Chinese Patent Publication No. CN 111173088B, has an automatic reset mechanism. However, such automatic reset mechanisms are electrically controlled, which are complex in structure, expensive, energy-intensive, and prone to failure. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned defects in the prior art and provide a control mechanism that is novel in structure, reasonable in design, combines mechanical principles, requires no electronic control, is easy to use, low in cost, and can be automatically reset.

[0004] To achieve the above objectives, this utility model provides an automatically resetting control mechanism, including a rotating spindle, a suction cup, a flipping drive frame, a torsion spring, and a gas flow control device. The suction cup is mounted on the rotating spindle via the flipping drive frame, and the torsion spring is mounted on the rotating spindle with its elastic arm connected to the flipping drive frame. The gas flow control device is fixedly mounted below the suction cup and has a gas flow control hole. When the rotating spindle is rotated under force, it can drive the suction cup downwards via the flipping drive frame, allowing the suction cup to adhere to the top surface of the gas flow control device and be positioned above the gas flow control hole. When sufficient air enters the suction cup, it releases the suction from the gas flow control device, and the rotating spindle can rotate and reset under the rebound 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 orifice 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 located directly below the gas flow control orifice.

[0006] Preferably, the contact panel is an acrylic plate.

[0007] Preferably, the gas flow control diaphragm is an expanded polytetrafluoroethylene diaphragm.

[0008] Preferably, double-sided adhesive is used to connect the contact panel and the gas flow control diaphragm.

[0009] Preferably, the diameter of the gas flow control orifice is set to 0.6 mm.

[0010] Preferably, the flip drive frame includes a main drive seat, a suction cup flip seat, a fixed base, and drive rods. The main drive seat is fixedly mounted on a rotating main shaft. The suction cup flip seat is rotatably mounted in the middle of the main drive seat via a first rotating shaft. The suction cup is mounted in the lower middle of the suction cup flip seat. The fixed base is fixed to the lower rear side of the suction cup flip seat. Two drive rods are provided and located on the left and right sides of the suction cup. The front and rear ends of the two drive rods are rotatably connected to the suction cup flip seat and the fixed base via a second rotating shaft, respectively.

[0011] Preferably, the control mechanism further includes a control box, the rotating spindle is rotatably connected to the left and right sides of the control box via bearings, the left and right ends of the rotating spindle extend out of the left and right sides of the control box, and the suction cup, the flip drive frame, the torsion spring and the gas flow control device are all located inside the control box.

[0012] 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.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This utility model has a novel structure and reasonable design. When the rotating main shaft is subjected to force and rotates, the rotating main shaft can drive the suction cup to flip downward through the flipping drive frame, so that the suction cup can be adsorbed on the top surface of the gas flow control device and located above the gas flow control hole. When enough air enters the suction cup, the suction cup can release the adsorption state between the suction cup and the gas flow control device, and the rotating main shaft can rotate and reset under the rebound action of the torsion spring. It combines mechanical principles, does not require electronic control, and greatly reduces costs. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the control mechanism provided in this embodiment of the present invention when the upper box cover is opened;

[0017] Figure 2 This is a schematic diagram of the main structure of the control mechanism provided in the embodiment of the present invention in the initial state;

[0018] Figure 3 This is an assembly drawing of the suction cup and the flip drive frame provided in this embodiment of the utility model;

[0019] Figure 4 This is a schematic diagram of the main structure of the control mechanism provided in this embodiment after it has been flipped.

[0020] Figure 5 This is an exploded view of the gas flow control device provided in this embodiment of the utility model;

[0021] Figure 6 This is an assembly diagram of the control mechanism and one type of toilet seat provided in this embodiment of the utility model. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Please refer to Figure 1 The present invention provides an automatic reset control mechanism, including a control box 2 and a rotating spindle 3. The rotating spindle 3 is rotatably installed inside the control box 2, and the left and right ends of the rotating spindle 3 extend out of the left and right sides of the control box 2 respectively. The control box 2 is provided with a suction cup 4, a flip drive frame 5, a torsion spring 6 and a gas flow control device 7. The components of this embodiment will be described in detail below with reference to the accompanying drawings.

[0024] like Figure 1 and Figure 2 As shown, the rotating spindle 3 can be rotatably connected to the left and right sides of the control box 2 via the bearing 10.

[0025] like Figure 1 As shown, the control box 2 may 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 is located on top of the lower box body 21. To improve the waterproof sealing of the control box, a waterproof rubber ring 23 may also be provided between the upper box cover 22 and the lower box body 21. The waterproof rubber ring 23 can prevent water from entering the control box during use.

[0026] like Figure 1 , Figure 2 and Figure 3As shown, the suction cup 4 can be mounted on the rotating main shaft 3 via the flip drive frame 5. Specifically, the flip drive frame 5 may include a main drive seat 51, a suction cup flip seat 52, a fixed base 53, and a drive rod 54. The main drive seat 51 is fixedly mounted on the rotating main shaft 3. The suction cup flip seat 52 is rotatably mounted in the middle of the main drive seat 51 via a first rotating shaft 55 (such as a shaft). The suction cup 4 is mounted in the lower middle of the suction cup flip seat 52. The fixed base 53 can be fixedly mounted inside the bottom of the control box 2 by screws and is located below and behind the suction cup flip seat 52. There are two drive rods 54 located on the left and right sides of the suction cup 4. The front and rear ends of the two drive rods 54 are rotatably connected to the suction cup flip seat 52 and the fixed base 53 via a second rotating shaft 56 (such as a shaft, rivet, or screw).

[0027] When the main shaft 3 rotates, the main drive seat 51 and the suction cup flip seat 52 can rotate with the main shaft 3. Since the position of the fixed base 53 does not change, the drive rod 54 connected between the suction cup flip seat 52 and the fixed base 53 will continue to pull the suction cup flip seat 52 to rotate relative to the main drive seat 51, so that the suction cup can adjust the angle and can be better vertically adsorbed on the top surface of the gas flow control device 7.

[0028] like Figure 2 and Figure 4 As shown, torsion springs 6 are mounted on the rotating spindle 3 and 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 tilting drive frame 5 (e.g., 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 (e.g., fixed by screws). In this embodiment, the use of two torsion springs 6 can maintain uniform force. In addition, the surface of the torsion spring 6 can be galvanized, which makes the torsion spring more durable.

[0029] like Figure 4 and Figure 5 As 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. The contact panel 71 has a plurality of gas flow control holes 70 penetrating its top and bottom surfaces. 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 flow rate of air through the gas flow control holes 70, thereby controlling the separation time between the suction cup 4 and the contact panel 71.

[0030] In specific implementation, the contact panel 71 can preferably be set as an acrylic plate with a thickness of 3mm, and the gas flow control diaphragm 72 can preferably be set as an expanded polytetrafluoroethylene diaphragm.

[0031] Experimental testing revealed that the optimal aperture of the gas flow control orifice 70 is 0.6 mm, which allows the suction cup to reach air saturation in about 20-35 seconds. If the aperture is less than 0.6 mm, the time for the rotating spindle 3 to reset will be too long or it may not reset at all. If the aperture is greater than 0.6 mm, air will enter too quickly, which may damage the suction cup.

[0032] In actual installation, double-sided adhesive tape 73 (such as 3M double-sided adhesive tape with a thickness of 0.2mm) can also be provided between the contact panel 71 and the gas flow control diaphragm 72. The contact panel 71 can be glued and fixed to the bottom of the control box 2 through the double-sided adhesive tape 73. In addition, the double-sided adhesive tape 73 also makes it easy to glue the gas flow control diaphragm 72 to the bottom of the contact panel 71.

[0033] like Figure 5 As shown, when the double-sided adhesive 73 completely covers the area below the gas flow control hole 70 of the contact panel 71, the double-sided adhesive 73 also needs to have the gas flow control hole 70. Of course, depending on actual needs, in other embodiments, the double-sided adhesive 73 may not cover only a partial area below the gas flow control hole 70 of the contact panel 71.

[0034] It should be noted that, in addition to being fixed by double-sided adhesive tape 73, the contact panel 71 can also be fixed to the control box by screws, clips or other fasteners. The gas flow control diaphragm 72 can also be fixed to the bottom of the contact panel 71 by other connection methods, not limited to this embodiment.

[0035] The working principle of this utility model is as follows:

[0036] like Figure 4 As shown, when the rotating spindle 3 is rotated by an external force, the rotating spindle 3 can drive the suction cup 4 to flip downward through the flipping drive frame 5. The suction cup 4 can be adsorbed on the top surface of the contact panel 71 of the gas flow control device 7 and located above the gas flow control hole 70, thereby completely closing with the gas flow control device 7.

[0037] like Figure 2 As shown, when no external force is applied to the rotating spindle 3, the gas flow control device 7 can control the flow of air entering the suction cup 4 through the gas flow control hole 70. When enough air slowly enters the suction cup 4 (reaching saturation), the suction cup 4 can release the adsorption state between itself and the gas flow control device 7. The rotating spindle 3 can be flipped upward and reset in about 20-35 seconds under the rebound action of the torsion spring 6.

[0038] like Figure 6As shown, the control mechanism of this embodiment can be installed in conjunction with the toilet seat 1. The left and right ends of the rotating main shaft 3 can be connected to the left and right sides of the rear end of the toilet seat 1. When the user finishes using the toilet, he / she can leave directly, and the toilet seat can automatically pop up and return to the upright state within a period of time.

[0039] It should be noted that, in addition to being installed in conjunction with the toilet seat 1, the control mechanism of this embodiment can also be used with other devices or machines that require an automatic reset function.

[0040] In summary, this utility model has a novel structure and a reasonable design. Combining mechanical principles, it can achieve an automatic reset function without the need for electronic control, thus greatly reducing costs.

[0041] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. An automatically resettable control mechanism, characterized by: The utility model provides a kind of rotating main shaft, suction cup, turnover drive frame, torsion spring and gas flow control device, the suction cup is installed on rotating main shaft by turnover drive frame, the torsion spring is installed on rotating main shaft, the elastic arm of the torsion spring is connected with turnover drive frame, gas flow control device is fixedly installed below suction cup, gas flow control device is equipped with gas flow control hole, when rotating main shaft is forced to rotate, rotating main shaft can drive suction cup to overturn downwards by turnover drive frame, so that suction cup can be adsorbed on the top surface of gas flow control device and be located above gas flow control hole, when enough air enters in suction cup, the suction cup can release the adsorption state between gas flow control device, rotating main shaft can be rotated reset under the rebound action of torsion spring.

2. An automatically resettable control mechanism according to claim 1, wherein: The gas flow control device includes 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 located directly below the gas flow control hole.

3. An automatically resettable control mechanism according to claim 2, wherein: The contact panel is an acrylic plate.

4. A self-resetting control mechanism according to claim 2, wherein: The gas flow control diaphragm is an expanded polytetrafluoroethylene diaphragm.

5. An automatically resettable control mechanism according to claim 2, wherein: Double-sided tape is connected between the contact panel and the gas flow control diaphragm.

6. An automatically resettable control mechanism according to claim 1, wherein: The diameter of the gas flow control hole is 0.6 mm.

7. An automatically resettable control mechanism according to claim 1, wherein: The turnover drive frame includes a main drive seat, a suction cup turnover seat, a fixed base and two drive pull rods, the main drive seat is fixedly installed on the rotating main shaft, the suction cup turnover seat is rotatably installed in the middle of the main drive seat by a first rotating shaft, the suction cup is installed in the middle of the lower end of the suction cup turnover seat, the fixed base is fixed to the lower rear side of the suction cup turnover seat, and the two drive pull rods are located on the left and right sides of the suction cup, the front and rear ends of the two drive pull rods are rotatably connected to the suction cup turnover seat and the fixed base by second rotating shafts, respectively.

8. A self-resetting control mechanism according to any one of claims 1 to 7, wherein: A control box is further included, the rotating main shaft is rotatably connected to the left and right sides of the control box by bearings, the left and right ends of the rotating main shaft pass through the left and right sides of the control box, and the suction cup, the turnover drive frame, the torsion spring and the gas flow control device are all located inside the control box.

9. An automatically resettable control mechanism according to claim 8, wherein: 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 arranged between the upper box cover and the lower box body.

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