Key structure of water tank

Abstract

The utility model discloses a button structure of a water tank, which comprises a water tank upper cover, a pressing guide column, a pressing button and a middle connecting rod, and the middle connecting rod is provided with a first movable roller which is abutted against and matched with the bottom surface of the pressing button and a second movable roller which is abutted against the top surface of the pressing guide column. When the press key is pressed, the relative movement process between the press key and the middle connecting rod is changed from sliding friction to rolling through the first movable roller, and meanwhile, the relative movement process between the middle connecting rod and the press guide column is changed from sliding friction to rolling through the second movable roller, so that more labor is saved when a user presses the press key; and displacement formed by sliding friction is replaced by the rolling effect of the first movable roller and the second movable roller, so that the press key and the middle connecting rod are more difficult to wear, and the service life is longer.

Description

Technical Field

[0001] This utility model relates to the field of water tanks, and in particular to a button structure for a water tank. Background Technology

[0002] Toilet tanks control flushing through a flush valve and button mechanism. Current toilet tank button designs primarily focus on the contact between the flush valve and the button to achieve valve opening and closing, neglecting the ease of operation and travel length of the button. To address this, some companies have designed a toilet tank button structure with a shorter travel distance and a lever structure to reduce effort during pressing (see patent application number 202420657147.7). However, this design has a problem: because the button plate and the pressing guide plate swing in different directions, and the pressing guide plate also moves on the pressing guide during swinging, hard friction occurs between the button plate and the pressing guide plate, as well as between the pressing guide plate and the pressing guide surface, when the button plate is pressed. This means that the user still needs to overcome the friction between the button plate and the pressing guide plate, and between the pressing guide plate and the top of the pressing guide, thus requiring a certain amount of force from the user, resulting in insufficient effort-saving sensation. The buttons on water tanks are usually made of plastic, which can easily lead to localized wear and damage during long-term friction, thus limiting their lifespan. Utility Model Content

[0003] To address the aforementioned problems, the purpose of this invention is to provide a more labor-saving and wear-resistant button structure for a water tank.

[0004] The technical solution adopted by this utility model to solve the problem is: a button structure for a water tank, comprising:

[0005] The water tank cover has a pressing guide post that can move up and down via a spring;

[0006] The rear end of the button is pivotally connected to the top cover of the water tank and located above the pressing guide post;

[0007] A middle connecting rod is located between the pressing guide post and the pressing button. The front end of the middle connecting rod is pivotally connected to the water tank cover. The middle part of the middle connecting rod is pivotally connected to a first movable roller for abutting against the lower surface of the pressing button. The end of the middle connecting rod is pivotally connected to a second movable roller for abutting against the top surface of the pressing guide post. When the front end of the pressing button is pressed down, the first movable roller drives the middle connecting rod to swing downward and causes the second movable roller to drive the pressing guide post to press down.

[0008] As a further improvement to the above technical solution, the intermediate connecting rod includes a first rod segment at the front and a second rod segment at the rear. The end of the second rod segment is inclined downward toward the pressing guide post. The front end of the first rod segment is pivotally connected to the water tank cover. The first movable roller is located at the connection position between the first rod segment and the second rod segment, and the second movable roller is located at the end of the second rod segment.

[0009] As a further improvement to the above technical solution, when the button is not pressed, the first rod segment is inclined upward toward the second rod segment, and the second rod segment is inclined downward toward the end of the second rod segment. When the button is pressed, the bottom surface of the button abuts against the upper surface of the first rod segment.

[0010] As a further improvement to the above technical solution, a first mounting groove is provided on the top surface of the middle part of the intermediate connecting rod, and a first shaft hole is provided on the left and right sides of the intermediate connecting rod, which extends into the first mounting groove. A first pivot shaft is provided on the first shaft hole and located in the first mounting groove. The first movable roller is inserted into the first pivot shaft and located in the first mounting groove. The first movable roller is higher than the top surface of the middle part of the intermediate connecting rod.

[0011] As a further improvement to the above technical solution, the end of the intermediate connecting rod is provided with two opposing legs, each of which is provided with a second shaft hole. The second movable roller is located between the two legs, and a second pivot shaft is inserted into the second movable roller synchronously inserted into the second shaft hole. The second movable roller protrudes from the outer edge of the legs.

[0012] As a further improvement to the above technical solution, the surface of the press button is provided with a decorative cover.

[0013] The beneficial effects of this utility model are as follows: When the button is pressed, since the rear end of the button is pivotally connected to the water tank cover, the front end of the button swings downward. At the same time, since the front end of the intermediate connecting rod is pivotally connected to the water tank cover, and the middle part of the intermediate connecting rod is pivotally connected to the first movable roller that abuts against the bottom surface of the button, the button drives the first movable roller to press down, thereby causing the intermediate connecting rod to swing downward. In this process, the lateral displacement of the contact surface generated by the button and the intermediate connecting rod during their mutual movement is completed by the rolling of the first movable roller, thus avoiding sliding friction when the button and the intermediate connecting rod move relative to each other. At the same time, the end of the button abuts against the top of the pressing guide post through the second movable roller. Thus, when the end of the button presses down on the pressing guide post, the lateral displacement generated by the end of the button on the surface of the pressing guide post is also completed by the rolling of the second movable roller, thus avoiding sliding friction when the button and the surface of the pressing guide post move relative to each other. Therefore, the button structure of the water tank disclosed in this solution requires less effort from the user when pressing it. Moreover, the rolling effect of the first and second movable rollers replaces the displacement formed by sliding friction, making the button and the intermediate connecting rod less prone to wear and thus extending their service life. Attached Figure Description

[0014] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a schematic diagram of the structure when the button is pressed but not pressed.

[0016] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure along the AA direction;

[0017] Figure 3 This is a schematic diagram of the structure when the button is pressed.

[0018] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure in the BB direction;

[0019] Figure 5 This is a schematic diagram of the exploded structure of this utility model. Detailed Implementation

[0020] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0021] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0023] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0024] Reference Figures 1 to 5 A button structure for a water tank, comprising:

[0025] The water tank cover 10 has a pressing guide post 20 that can move up and down via a spring.

[0026] Press button 30, the rear end of which is pivotally connected to the water tank cover 10 and located above the pressing guide post 20;

[0027] A middle connecting rod 40 is located between the pressing guide post 20 and the pressing button 30. The front end of the middle connecting rod 40 is pivotally connected to the water tank cover 10. The middle part of the middle connecting rod 40 is pivotally connected to a first movable roller 50 for abutting against the lower surface of the pressing button 30. The end of the middle connecting rod 40 is pivotally connected to a second movable roller 60 for abutting against the top surface of the pressing guide post 20. When the front end of the pressing button 30 is pressed down, the first movable roller 50 drives the middle connecting rod 40 to swing downward and causes the second movable roller 60 to drive the pressing guide post 20 to press down.

[0028] When the button 30 is pressed, its rear end is pivotally connected to the water tank cover 10, causing the front end of the button 30 to swing downwards. Simultaneously, the front end of the intermediate connecting rod 40 is pivotally connected to the water tank cover 10, and the middle of the intermediate connecting rod 40 is pivotally connected to a first movable roller 50 that abuts against the bottom surface of the button 30. Therefore, through the lever principle, the button 30 drives the first movable roller 50 downwards, thereby causing the intermediate connecting rod 40 to swing downwards. During this process, the contact surfaces generated between the button 30 and the intermediate connecting rod 40 during their mutual movement... The lateral displacement of the button 30 is achieved by the rolling of the first movable roller 50, thus avoiding sliding friction when the button 30 moves relative to the intermediate connecting rod 40. Simultaneously, the end of the button 30 abuts against the top of the pressing guide post 20 via the second movable roller 60. Therefore, the lateral displacement generated by the end of the button 30 on the surface of the pressing guide post 20 when it presses down is also achieved by the rolling of the second movable roller 60, thus avoiding sliding friction when the button 30 moves relative to the surface of the pressing guide post 20. Therefore, the button structure of the water tank disclosed in this solution requires less effort from the user when pressing, and the rolling effect of the first movable roller 50 and the second movable roller 60 replaces the displacement caused by sliding friction. Consequently, the button 30 and the intermediate connecting rod 40 are less prone to wear, resulting in a longer service life.

[0029] In this design, the intermediate connecting rod 40 can also be used as a straight rod, but this generally requires the first movable roller 50 and the second movable roller 60 to be relatively large. Considering ease of use, the intermediate connecting rod 40 preferably includes a first rod segment 41 at the front and a second rod segment 42 at the rear. The end of the second rod segment 42 is inclined downward toward the pressing guide post 20. The front end of the first rod segment 41 is pivotally connected to the water tank cover 10. The first movable roller 50 is located at the connection position between the first rod segment 41 and the second rod segment 42, and the second movable roller 60 is located at the end of the second rod segment 42. In use, preferably when the pressing button 30 is not pressed, the first rod segment 41 is inclined upward toward the second rod segment 42, and the second rod segment 42 is inclined downward toward its end. When the pressing button 30 is pressed, the bottom surface of the pressing button 30 abuts against the upper surface of the first rod segment 41. Of course, depending on the layout of the button 30, the state of the intermediate link 40 can also be changed. For example, by adopting the technical features of the existing patent provided in the background art, that is, by setting a downwardly extending pressing platform at the bottom of the button 30 to cooperate with the first movable roller 50 on the intermediate link 40, the first segment 41 can be in a horizontal state when the button 30 is not pressed.

[0030] In this design, preferably, a first mounting groove 43 is provided on the top surface of the middle part of the intermediate connecting rod 40, and a first shaft hole is provided on the left and right side surfaces of the intermediate connecting rod 40, which extends into the first mounting groove 43. A first pivot shaft 51 is provided on the first shaft hole and located in the first mounting groove 43. The first movable roller 50 is inserted into the first pivot shaft 51 and located in the first mounting groove 43. The first movable roller 50 is higher than the top surface of the middle part of the intermediate connecting rod 40.

[0031] Similarly, preferably, the middle connecting rod 40 is provided with two opposing legs 44 at its end, and each of the two legs 44 is provided with a second shaft hole. The second movable roller 60 is located between the two legs 44, and a second pivot shaft 61 is inserted into the second movable roller 60 and is synchronously inserted into the second shaft hole. The second movable roller 60 protrudes from the outer edge of the legs 44.

[0032] The arrangement of the first movable roller 50 and the second movable roller 60 provides support on both sides of the first movable roller 50 and the second movable roller 60. At the same time, the position of the first movable roller 50 and the second movable roller 60 is restricted by the first mounting groove 43 and the two support legs 44, thus improving stability.

[0033] In other embodiments, a shaft can be directly provided on the side of the intermediate connecting rod 40 to pivotally connect the first movable roller 50 and the second movable roller 60.

[0034] Further optimization is preferred, with a decorative cover 31 provided on the surface of the press button 30.

[0035] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the contents of this utility model specification and drawings under the inventive concept of this utility model, or direct or indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A key structure of a water tank, characterized by comprising: include: The water tank cover (10) is provided with a pressing guide post (20) that can move up and down via a spring; Press button (30), the rear end of which is pivotally connected to the water tank cover (10) and located above the pressing guide post (20); The intermediate connecting rod (40) is located between the pressing guide post (20) and the pressing button (30). The front end of the intermediate connecting rod (40) is pivotally connected to the water tank cover (10). The middle part of the intermediate connecting rod (40) is pivotally connected to a first movable roller (50) for abutting against the lower surface of the pressing button (30). The end of the intermediate connecting rod (40) is pivotally connected to a second movable roller (60) for abutting against the top surface of the pressing guide post (20). When the front end of the pressing button (30) is pressed down, the intermediate connecting rod (40) is driven to swing downward through the first movable roller (50) and the second movable roller (60) drives the pressing guide post (20) to press down.

2. The button structure for a water tank as described in claim 1, characterized in that: The intermediate connecting rod (40) includes a first rod segment (41) at the front and a second rod segment (42) at the rear. The end of the second rod segment (42) is inclined downward toward the pressing guide post (20). The front end of the first rod segment (41) is pivotally connected to the water tank cover (10). The first movable roller (50) is located at the connection position between the first rod segment (41) and the second rod segment (42). The second movable roller (60) is located at the end of the second rod segment (42).

3. The button structure for a water tank as described in claim 2, characterized in that: When the button (30) is not pressed, the first rod segment (41) is tilted upward toward the second rod segment (42), and the second rod segment (42) is tilted downward toward the end of the second rod segment (42). When the button (30) is pressed, the bottom surface of the button (30) abuts against the upper surface of the first rod segment (41).

4. The button structure for a water tank as described in claim 1, characterized in that: The top surface of the middle part of the intermediate connecting rod (40) is provided with a first mounting groove (43). The left and right sides of the intermediate connecting rod (40) are provided with a first shaft hole that penetrates into the first mounting groove (43). The first shaft hole is provided with a first pivot shaft (51) located in the first mounting groove (43). The first movable roller (50) is inserted into the first pivot shaft (51) and located in the first mounting groove (43). The first movable roller (50) is higher than the top surface of the middle part of the intermediate connecting rod (40).

5. The button structure for a water tank as described in claim 1, characterized in that: The intermediate connecting rod (40) is provided with two opposing support legs (44) at its end. Each of the two support legs (44) is provided with a second shaft hole. The second movable roller (60) is located between the two support legs (44). The second movable roller (60) is provided with a second pivot shaft (61) that is synchronously inserted into the second shaft hole. The second movable roller (60) protrudes from the outer edge of the support leg (44).

6. The button structure of a water tank according to claim 1, wherein: a decorative surface cover (31) is provided on the surface of the push button (30). ​

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