A flush toilet water tank with simple key structure

Abstract

A flush toilet water tank with simple button structure, including: top cover, and set up in two groups button main body, driving piece and reset spring in top cover, button main body includes press plate main body and press plate swing arm, press plate main body is located in the upper of driving main body part, the lower of top cover is provided with hinged seat, hinged seat is located in the back of work bin, rotation shaft part can draw into hinged hole along guide groove, press press plate main body, can make press plate main body rotate around hinged seat, and make driving piece move towards down, the utility model discloses, traditional " straight up straight down " press mode is changed to " front end press, rear end rotation " lever mode, the force arm of user press button panel is much greater than the resistance arm of reset spring on button, according to lever principle, user only needs to exert a very small force to overcome the elasticity of reset spring, and flush valve is easily triggered.

Description

Technical Field

[0001] This utility model relates to the field of toilet tank technology, and in particular to a toilet tank with a simple button structure. Background Technology

[0002] Currently, most mainstream two-flush toilet tanks on the market typically include a cylindrical button frame installed at the top cover opening, and two independent T-shaped button assemblies mounted within this frame. Each button assembly is equipped with its own return spring, and its movement is strictly vertical. When the user presses the button, the button lever moves vertically downwards along its axis, directly compressing the return spring below, until it triggers the connected flush valve mechanism.

[0003] This traditional direct-pressure structure has a significant drawback: it requires considerable effort to operate. Because the return spring needs to provide sufficient restoring force to ensure the button accurately resets and seals after operation, its preload is typically quite high. Users must apply sufficient force to completely overcome the spring's elastic potential energy to complete the flushing action. This is not only unfriendly to children, the elderly, or those with mobility issues, but also reduces comfort and convenience during frequent daily use. Therefore, finding a new button structure that changes the force application method, effectively reduces effort, and makes pressing easier and smoother has become a technical problem worthy of attention and improvement in this field. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a toilet tank with a simple button structure.

[0005] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: a toilet tank with a simple button structure, including: a top cover, and two sets of button bodies, a driving component and a return spring disposed on the top cover; The top cover is recessed downwards to form a working chamber, and the working chamber has an opening at the top; the working chamber is provided with a cylindrical spring mounting chamber; a guide cylinder that runs vertically through the bottom of the spring mounting chamber is provided below the spring mounting chamber, and the inner diameter of the guide cylinder is smaller than the inner diameter of the spring mounting chamber. The driving component comprises, from top to bottom, a driving main body, a guide rod, and a driving extension; the guide rod passes through the guide cylinder; the driving main body is located above the spring mounting chamber; the return spring is sleeved on the guide rod and abuts against the driving main body and the guide cylinder; the driving extension is located below the guide cylinder. The button body includes a button plate body and a button plate rotating arm; the button plate body is located above the driving body; a hinge seat is provided below the top cover, and the hinge seat is located on the rear side of the working chamber; a rear clearance groove is provided on the rear side of the working chamber; a hinge hole is provided on the hinge seat, and a guide channel is provided in front of the hinge hole; a rotating shaft is provided at the rear end of the button plate rotating arm; the button plate rotating arm passes through the rear clearance groove; the rotating shaft can slide into the hinge hole along the guide channel; pressing the button plate body can cause the button plate body to rotate around the hinge seat and cause the driving member to move downward.

[0006] Optionally, the hinge seat is a vertical plate seat structure integrally formed on the top cover; each button body is provided with two hinge seats; two button rotating arms are provided, spaced apart on the rear side of the button body, and the two button rotating arms can deform toward the center so that the rotating shaft can be respectively inserted into the hinge holes of the two hinge seats.

[0007] Optionally, the rotating shaft portion has an inclined guide surface at one end facing the guide channel.

[0008] Optionally, the guide channel has a flared channel structure with a gradually expanding cross-section on the side facing the working chamber.

[0009] Optionally, a flat transmission plate is provided on the top of the drive body, and the transmission plate is attached to the lower part of the button body.

[0010] Optionally, a reinforcing inclined plate is provided below the transmission plate and on the front side of the drive body; the working chamber is provided with an avoidance groove on the front side of the spring mounting chamber; when the drive component moves down, the reinforcing inclined plate can sink into the avoidance groove.

[0011] Optionally, the front side of the button body is provided with a downwardly extending button panel; the front side of the work compartment is provided with a front clearance groove; when the button body rotates downward, the button panel can pass through the front clearance groove.

[0012] Optionally, the working compartment has limit slots on both sides; the button body has a lower buckle on its side; the lower buckle can abut against the limit slots to prevent the button body from detaching from the working compartment facing upwards.

[0013] The beneficial effects of this invention are as follows: It replaces the traditional "straight up and down" pressing method with a lever-based "front-end pressing, rear-end rotation" method. The force arm of the user pressing the button panel is much greater than the resistance arm of the return spring acting on the button. According to the lever principle, the user only needs to apply a small force to overcome the spring force of the return spring and easily trigger the flush valve. This greatly reduces the downward force, making it especially user-friendly for children, the elderly, and those with mobility impairments, thus improving the product's versatility and user comfort. The button assembly adopts a modular design; the rotating shaft can be inserted into the hinge hole for installation via a "press-slide" method, eliminating the need for screws or other additional fasteners. This simple assembly method greatly improves production and assembly efficiency, while also facilitating later maintenance and replacement.

[0014] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of the toilet flushing tank of this utility model; Figure 2 for Figure 1 Exploded view of the flush toilet tank; Figure 3 for Figure 1 Another exploded view of the center-flush toilet tank; Figure 4 for Figure 1 Cross-sectional view of the flush toilet tank.

[0016] Explanation of key component symbols: 10. Top cover; 11. Hinge seat; 12. Hinge hole; 13. Guide channel; 20. Button body; 21. Button plate body; 22. Button plate rotating arm; 221. Rotating shaft; 23. Button plate panel; 24. Lower latch; 30. Driving component; 31. Driving main body; 311. Transmission plate; 312. Reinforcing inclined plate; 32. Guide rod; 33. Driving extension; 40. Return spring; 50. Working chamber; 51. Spring mounting chamber; 52. Guide cylinder; 53. Rear clearance groove; 54. Clearance inclined groove; 55. Front clearance groove; 56. Limiting latch groove. Detailed Implementation

[0017] 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.

[0018] In the description of this utility model, "multiple" means two or more; "greater than," "less than," and "exceeding" are understood to exclude the stated number; "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.

[0019] 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.

[0020] In this utility model, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection; they can refer to the internal connection of two components or the interaction between two components. 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.

[0021] Example Reference Figures 1 to 4 The present invention proposes a toilet tank with a simple button structure, comprising: a top cover 10, two sets of button bodies 20 disposed on the top cover 10, a driving component 30, and a return spring 40. The top cover 10 is recessed downward to form a working chamber 50, and the working chamber 50 has an opening at the top; the working chamber 50 is provided with a cylindrical spring mounting chamber 51; a guide cylinder 52 that runs vertically through the spring mounting chamber 51 is provided below the spring mounting chamber 51, and the diameter of the inner hole of the guide cylinder 52 is smaller than the diameter of the inner hole of the spring mounting chamber 51. The driving component 30 includes, from top to bottom, a driving main body 31, a guide rod 32, and a driving extension 33; the guide rod 32 passes through the guide cylinder 52; the driving main body 31 is located above the spring mounting chamber 51; the return spring 40 is sleeved on the guide rod 32 and abuts against the driving main body 31 and the guide cylinder 52; the driving extension 33 is located below the guide cylinder 52. The button body 20 includes a button body 21 and a button arm 22. The button body 21 is located above the drive body 31. A hinge seat 11 is provided below the top cover 10 and is located on the rear side of the working chamber 50. A rear clearance groove 53 is provided on the rear side of the working chamber 50. A hinge hole 12 is provided on the hinge seat 11, and a guide channel 13 is provided in front of the hinge hole 12. A rotating shaft 221 is provided at the rear end of the button arm 22. The button arm 22 passes through the rear clearance groove 53. The rotating shaft 221 can slide into the hinge hole 12 along the guide channel 13. Pressing the button body 21 can cause the button body 21 to rotate around the hinge seat 11 and cause the drive member 30 to move downward.

[0022] In this invention, the traditional "straight up and down" pressing method is replaced with a "front-end pressing, rear-end rotation" lever method. The force arm of the user pressing the button panel is much greater than the resistance arm of the return spring 40 acting on the button. According to the lever principle, the user only needs to apply a small force to overcome the elastic force of the return spring 40 and easily trigger the flush valve. This greatly reduces the downward force, making it especially user-friendly for children, the elderly, and those with mobility impairments, thus improving the product's versatility and comfort. The button assembly adopts a modular design, allowing the rotating shaft 221 to be inserted into the hinge hole 12 for installation via a "press-slide" method, eliminating the need for screws or other additional fasteners. This simple assembly method greatly improves production and assembly efficiency, while also facilitating later maintenance and replacement.

[0023] In this embodiment, the hinge base 11 is an integrally formed vertical plate base structure on the top cover 10; each button body 20 is provided with two hinge bases 11; two button plate rotating arms 22 are provided, spaced apart on the rear side of the button body 21, and the two button plate rotating arms 22 can deform towards the center so that the rotating shaft part 221 can be respectively inserted into the hinge hole 12 of the two hinge bases 11. The integrally formed vertical plate base structure ensures the strength and positional accuracy of the hinge base 11. The two hinge bases 11 and the two pressable and deformable button plate rotating arms 22 cooperate to form a reliable and easy-to-operate snap-fit ​​installation structure, realizing the quick positioning and fixing of the button and simplifying the assembly process.

[0024] Specifically, the rotating shaft 221 has an inclined guide surface at one end facing the guide channel 13. This inclined guide surface design provides smooth guidance for the rotating shaft 221 to slide into the guide channel 13. This inclined surface automatically corrects the installation position, reducing resistance and friction during assembly, making the "press-to-install" action smoother and more intuitive, further enhancing the assembly experience.

[0025] Furthermore, the guide channel 13 has a flared, trumpet-shaped structure with a gradually widening cross-section on the side facing the work chamber 50. Optimizing the guide channel 13 into a "flared, trumpet-shaped channel" further improves the guiding effect. The flared design provides the rotating shaft portion 221 with greater tolerance and a better guide path, allowing for easy entry even with slight misalignment, reducing assembly difficulty and improving production yield.

[0026] In this embodiment, a flat transmission plate 311 is provided on the top of the drive body 31, and the transmission plate 311 is attached to the lower part of the button body 21. This increases the contact area between the drive member 30 and the button body 20. This surface contact force transmission method is more stable than point contact or line contact, can evenly distribute pressure, prevent local stress concentration, ensure efficient and stable transmission of pressing force, and avoid wear or jamming caused by uneven force.

[0027] Specifically, a reinforcing inclined plate 312 is provided below the transmission plate portion 311 and at the front of the drive body portion 31; the working chamber 50 has a clearance groove 54 at the front of the spring mounting chamber 51; when the drive member 30 moves downward, the reinforcing inclined plate 312 can sink into the clearance groove 54. The reinforcing inclined plate 312 significantly enhances the structural strength of the connection between the drive member 30 body and the transmission plate portion 311, preventing breakage under long-term use. At the same time, the clearance groove 54 provides movement space for the reinforcing inclined plate 312, ensuring that the drive member 30 will not interfere with the working chamber 50 during downward movement, thus ensuring smooth operation.

[0028] In this embodiment, a downwardly extending button panel 23 is provided on the front side of the button body 21; a front clearance groove 55 is provided on the front side of the working chamber 50; when the button body 21 rotates downward, the button panel 23 can pass through the front clearance groove 55. This optimizes the appearance and operating experience of the buttons. The downwardly extending "button panel 23" increases the contact area and force application area for the user's fingers, making operation more comfortable. At the same time, its design of passing through the front clearance groove 55 ensures that the buttons maintain a flat or coordinated fit with the top cover 10 in both static and working states, improving the overall aesthetics of the product.

[0029] In this embodiment, limiting grooves 56 are provided on both sides of the working chamber 50; a lower locking part 24 is provided on the side of the button body 21; the lower locking part 24 can abut against the limiting grooves 56 to prevent the button body 21 from detaching from the working chamber 50 upwards. Through the cooperation of the "lower locking part 24" and the "limiting grooves 56", the button body 20 is restricted from above without affecting the normal rotation of the button, preventing it from jumping upwards due to accidental lifting or changes in the internal pressure of the water tank, thus ensuring the integrity and reliability of the product during transportation, installation and use.

[0030] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications and substitutions are included within the scope defined by the claims of this application.

Claims

1. A toilet tank with a simple button structure, characterized in that, include: Top cover (10), and two sets of button bodies (20), driving components (30) and reset springs (40) disposed on the top cover (10); The top cover (10) is recessed downward to form a working chamber (50), and the working chamber (50) has an opening at the top; the working chamber (50) is provided with a cylindrical spring mounting chamber (51); a guide cylinder (52) that runs vertically through the bottom of the spring mounting chamber (51) is provided below the spring mounting chamber (51), and the diameter of the inner hole of the guide cylinder (52) is smaller than the diameter of the inner hole of the spring mounting chamber (51); The driving component (30) comprises, from top to bottom, a driving main body (31), a guide rod (32), and a driving extension (33); the guide rod (32) passes through the guide cylinder (52); the driving main body (31) is located above the spring mounting chamber (51); the return spring (40) is sleeved on the guide rod (32) and abuts against the driving main body (31) and the guide cylinder (52); the driving extension (33) is located below the guide cylinder (52). The button body (20) includes a button plate body (21) and a button plate rotating arm (22); the button plate body (21) is located above the driving body (31); a hinge seat (11) is provided below the top cover (10), and the hinge seat (11) is located on the rear side of the working chamber (50); a rear clearance groove (53) is provided on the rear side of the working chamber (50); the hinge seat (11) is provided with a hinge hole (12), and the hinge seat (11) is located on the... A guide channel (13) is provided in front of the hinge hole (12); a rotating shaft (221) is provided at the rear end of the button arm (22); the button arm (22) passes through the rear clearance groove (53); the rotating shaft (221) can slide into the hinge hole (12) along the guide channel (13); pressing the button body (21) can make the button body (21) rotate around the hinge seat (11) and make the driving member (30) move downward.

2. The toilet tank with a simple button structure according to claim 1, characterized in that: The hinge seat (11) is a vertical plate seat structure integrally formed on the top cover (10); each button body (20) is provided with two hinge seats (11); two button rotating arms (22) are provided, spaced apart on the rear side of the button body (21), and the two button rotating arms (22) can deform toward the center so that the rotating shaft part (221) can be respectively inserted into the hinge hole (12) of the two hinge seats (11).

3. The toilet tank with a simple button structure according to claim 2, characterized in that: The rotating shaft (221) has an inclined guide surface at one end facing the guide channel (13).

4. The toilet tank with a simple button structure according to claim 3, characterized in that: The guide channel (13) has a flared channel structure with a gradually expanding cross-section on the side facing the working chamber (50).

5. The toilet tank with a simple button structure according to claim 1, characterized in that: The top of the drive body (31) is provided with a flat transmission plate (311), which is attached to the bottom of the button body (21).

6. The toilet tank with a simple button structure according to claim 5, characterized in that: A reinforcing inclined plate (312) is provided below the transmission plate (311) and on the front side of the drive body (31); the working chamber (50) is provided with an avoidance groove (54) on the front side of the spring mounting chamber (51); when the drive member (30) moves down, the reinforcing inclined plate (312) can be inserted into the avoidance groove (54).

7. The toilet tank with a simple button structure according to claim 1, characterized in that: The front side of the button body (21) is provided with a downwardly extending button panel (23); the front side of the work chamber (50) is provided with a front clearance groove (55); when the button body (21) rotates downward, the button panel (23) can pass through the front clearance groove (55).

8. The toilet tank with a simple button structure according to claim 1, characterized in that: The working chamber (50) has limit buckle grooves (56) on both sides; the button body (21) has a lower buckle part (24) on the side; the lower buckle part (24) can abut against the limit buckle groove (56) to prevent the button body (21) from detaching from the working chamber (50) facing upward.

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