A button device, a water tank and a toilet
By designing an integrated molding limiting structure and guide components, the problems of button lever displacement and splitting were solved, improving production and assembly efficiency and enhancing the stability and connection strength of the button device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QUANZHOU KEFA SANITARY WARE
- Filing Date
- 2025-07-15
- Publication Date
- 2026-07-14
AI Technical Summary
The existing toilet button lever is prone to shifting or splitting during pressing, resulting in unstable button force and affecting the function of the drain valve. In addition, the existing limit sleeve needs to be installed separately, which affects production efficiency.
The integrated limiting structure, including the limiting sleeve and connecting arm, features a boss and side opening for easy mold forming. Combined with the guide and the positioning part of the insertion cavity, it achieves stable installation and guidance of the button rod, preventing displacement and splitting, while simplifying the installation process.
The design improved the button lever's positioning and splitting issues, increased production and assembly efficiency, reduced the likelihood of the button lever coming off the assembly, and enhanced connection strength and stability.
Smart Images

Figure CN224495318U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of button technology, and in particular to a button device, a water tank, and a toilet. Background Technology
[0002] Some toilets are equipped with a water tank for flushing. The flush button on the tank has a half-flush button and a full-flush button. When the button lever is long, it is prone to displacement or splitting during pressing, resulting in unstable button force and affecting the function of the flush valve. Existing technology improves the problem of button displacement and splitting by adding a limiting sleeve to the button lever, but this limiting sleeve needs to be installed separately, which affects production efficiency. Utility Model Content
[0003] This utility model provides a button device, a water tank, and a toilet, which improves the problems of button lever displacement and splitting, while also increasing production efficiency.
[0004] To achieve the above objectives, the present invention provides the following technical solution:
[0005] A button device includes a body, the body having at least two button rods, the two button rods being movably connected to the body along their respective axes, and at least one of the two button rods being integrally formed with a limiting structure, the limiting structure having a through space, and the other button rod being movably inserted through the through space.
[0006] Furthermore, the limiting structure includes a limiting sleeve and a connecting arm for the integrally formed limiting sleeve. The limiting sleeve has a through-hole, and the limiting sleeve is integrally formed with the connected button rod through the connecting arm.
[0007] Furthermore, a boss is provided on a portion of the end face of the first end of the limiting sleeve, and a side opening communicating with the passage space is provided on the side of the limiting sleeve.
[0008] Furthermore, the main body is provided with two movable guide members, each guide member having a insertion cavity, the insertion cavity having a first positioning part, and the button rod of the integrally formed limiting mechanism having a second positioning part. The first positioning part and the second positioning part slide against each other, so that the button rod of the integrally formed limiting structure can only be installed in a preset direction.
[0009] Furthermore, the first positioning part includes a first positioning part A and a first positioning part B, and the second positioning part includes a second positioning part A and a second positioning part B located on both sides of the button lever and having different external dimensions. The first positioning part A and the first positioning part B are respectively adapted to the second positioning part A and the second positioning part B in a one-to-one correspondence.
[0010] Furthermore, the first end of the insertion cavity is provided with a protrusion, the first end of the button rod is provided with a spring buckle, and when the protrusion is engaged with the spring buckle, the lower part of the insertion cavity is interference-fitted with the button rod; the first end of the spring buckle is provided with a first guide surface, the second end of the protrusion is provided with a second guide surface, and when the guide is inserted into the insertion cavity, the first guide surface can abut against the second guide surface.
[0011] Furthermore, the second end of the snap fastener is provided with a first limiting surface, and the first end of the protrusion is provided with a second limiting surface. When the snap fastener is engaged with the protrusion, the first limiting surface abuts against the second limiting surface.
[0012] Furthermore, the outer side of the button bar is provided with a flange extending outward along its radial direction. The radial dimension of the flange is larger than the radial dimension of the insertion cavity. When the spring clip is engaged with the protrusion, the flange abuts against the bottom of the guide.
[0013] A water tank includes a tank body and a button device, which is disposed in the tank body and can be used to open the water tank body for drainage by pressing one of two button levers.
[0014] A toilet includes a toilet body, the toilet body having a flushing water passage, a water tank installed in the toilet body, and the water outlet of the water tank being connected to the flushing water passage.
[0015] The beneficial effects of this utility model are:
[0016] 1. This utility model proposes a button device, comprising a main body, on which two button rods movable along their respective axial directions are mounted. The two button rods are movably connected to the main body along their respective axial directions, and at least one of the button rods is integrally formed with a limiting structure. The limiting structure has a through-space, through which the other button rod movably passes. Compared to the existing technology that uses a separate limiting sleeve, this button device uses an integrally formed limiting structure, eliminating the need for additional installation time. This improves production efficiency while addressing the issues of button rod misalignment and splitting.
[0017] 2. The present invention proposes a button device in which a boss is provided on a portion of the end face of the first end of the limiting sleeve, and a side opening communicating with the through space is provided on the side of the limiting sleeve. The boss and the side opening facilitate the mold opening of the injection mold, so that multiple button rods with limiting mechanisms can be formed at one time with one mold.
[0018] 3. The present invention proposes a button device in which the guide member is provided with a plug cavity. The plug cavity for connecting the button rod of the integrally formed limited positioning mechanism is provided with a first positioning part. The button rod of the integrally formed limited positioning mechanism is provided with a second positioning part. The first positioning part and the second positioning part slide in a concave-convex manner with each other, so that the button rod of the integrally formed limited positioning structure can only be installed in a preset direction, thereby improving assembly efficiency.
[0019] 4. The button device proposed in this utility model has a protrusion at the first end of the insertion cavity and a spring buckle at the first end of the button rod. The protrusion can be engaged with the spring buckle. Compared with the threaded connection used in the prior art, the button rod does not need to be rotated multiple times, and the connection can be completed by inserting it once.
[0020] 5. The button device proposed in this utility model has a first limiting surface at the second end of the spring buckle and a second limiting surface at the first end of the protrusion. When the spring buckle is engaged with the protrusion, the first limiting surface abuts against the second limiting surface, reducing the possibility of the button rod coming off.
[0021] 6. The button device proposed in this utility model, when the spring buckle is engaged with the protrusion, the flange abuts against the bottom of the guide member, restricting the insertion stroke of the button rod and avoiding damage to the guide post caused by excessive insertion of the button rod.
[0022] 7. The button device proposed in this utility model has an interference fit between the lower part of the insertion cavity and the button rod, which increases the connection strength between the button rod and the guide post. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of the 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 only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0024] Figure 1 This is a schematic diagram of a button device according to the present invention;
[0025] Figure 2 This is a cross-sectional view of a button device according to the present invention;
[0026] Figure 3 for Figure 2 Enlarged view of a portion of point A in the middle;
[0027] Figure 4 for Figure 2 Enlarged view of a section at point B in the middle;
[0028] Figure 5 This is a schematic diagram of the first and second positioning parts of a button device according to the present invention;
[0029] Figure 6 This is a schematic diagram of the first button lever of a button device according to the present invention;
[0030] Figure 7 This is an exploded view of a button device according to the present invention;
[0031] In the diagram, 10 is the main body; 101 is the mounting hole; 102 is the recess; 201 is the first button lever; 202 is the second button lever; 30 is the limiting structure; 301 is the limiting sleeve; 3011 is the through-hole; 3012 is the boss; 3013 is the side opening; 302 is the connecting arm; 3021 is the reinforcing rib; 401 is the first guide; 402 is the second guide; 50 is the guide post; 501 is the insertion cavity; 502 is the protrusion. 60. Anti-detachment part; 70. Reset part; 80. Decorative ring; 90. Button; 100. Rubber sleeve; 1101. First positioning part A; 1102. First positioning part B; 1201. Second positioning part A; 1202. Second positioning part B; 130. Protrusion; 1301. Second limiting surface; 1302. Second guide surface; 140. Spring buckle; 1401. First guide surface; 1402. First limiting surface; 150. Flange. Detailed Implementation
[0032] The following is combined with Figures 1-7 This utility model will be described in detail.
[0033] Example 1
[0034] A button device includes a body 10, which has at least two button rods. The two button rods are movably connected to the body 10 along their respective axial directions, and at least one of the button rods is integrally formed with a limiting structure 30. The limiting structure 30 has a through-space 3011, through which the other button rod movably passes. Specifically, the two button rods are a first button rod 201 and a second button rod 202, with the first button rod 201 integrally formed with the limiting structure 30. Compared to the prior art which uses a separate limiting sleeve 301, this button device uses an integrally formed limiting structure 30, eliminating the need for additional installation time and improving production efficiency while addressing button rod misalignment and splitting issues. In other embodiments, both button rods may also be integrally formed with the limiting structure 30 to provide more limiting and prevent button rod misalignment and splitting.
[0035] Figure 5 The diagram shows the first button lever 201 and the limiting structure 30. The limiting structure 30 includes a limiting sleeve 301 and a connecting arm 302 integrally formed with the limiting sleeve 301. The limiting sleeve 301 has a through-hole 3011 and is integrally formed with the button lever, i.e., the first button lever 201, via the connecting arm 302. The connecting arm 302 has several reinforcing ribs 3021 to enhance its strength. A boss 3012 is provided on a portion of the end face of the first end of the limiting sleeve 301, and a side opening 3013 communicating with the through-hole 3011 is provided on the side of the limiting sleeve 301. The boss 3012 and the side opening 3013 facilitate the mold opening of the injection mold, allowing multiple button levers with limiting mechanisms to be formed in one mold at a time.
[0036] In this embodiment, the body 10 is provided with two movable guide members, namely a first guide member 401 and a second guide member 402. Specifically, the body 10 is provided with a mounting hole 101, and the guide members are provided with guide posts 50. There is a guide structure with a concave-convex fit between the outer surface of the guide post 50 and the inner wall of the mounting hole 101. The guide structure includes a protrusion 502 on the outer surface of the guide post 50 and a recess 102 on the inner wall of the mounting hole 101. A reset member 70 is provided between the two guide members and the body 10. The reset member 70 is used to provide a reset force opposite to the pressing direction of the guide members. The guide members are also provided with an anti-detachment part 60, which passes through the body 10. When the pressing force of the guide members disappears, the guide members are reset under the elastic force of the reset member 70. At the same time, the anti-detachment part 60 abuts against the body 10 to prevent the guide members from detaching from the body 10 under the elastic force. It also includes a decorative ring 80 and a button 90. The decorative ring 80 is installed on the body 10, and the button 90 is installed on the first guide 401 and the second guide 402 respectively. The first guide 401 is connected to the first button rod 201, and the second guide 402 is connected to the second button rod 202. The ends of the first button rod 201 and the second button rod 202 away from the body 10 are respectively provided with rubber sleeves 100.
[0037] like Figure 5 As shown, the internal space of the guide post 50 forms an insertion cavity 501. The insertion cavity 501 for connecting the button rod of the integrally formed limiting mechanism is provided with a first positioning part, and the button rod of the integrally formed limiting mechanism is provided with a second positioning part. That is, the first button rod 201 is provided with a second positioning part. The first positioning part and the second positioning part slide against each other, so that the button rod of the integrally formed limiting structure 30 can only be installed in a preset direction, improving assembly efficiency. In other embodiments, the internal space of the guide post 50 of the first guide member 401 and the second guide member 402 may also be provided with an insertion cavity 501. In this case, both the first button rod 201 and the second button rod 202 are provided with a second positioning part, further improving assembly efficiency.
[0038] The first positioning part includes a first positioning part A1101 and a first positioning part B1102. The second positioning part includes a second positioning part A1201 and a second positioning part B1202, which are located on the symmetrical plane of the first button lever 201 and have different external dimensions. The first positioning part A1101 and the first positioning part B1102 are respectively adapted to the second positioning part A1201 and the second positioning part B1202. The difference in external dimensions between the second positioning part A1201 and the second positioning part B1202 restricts the installation direction of the second button lever 202. Further, the first positioning part A1101 and the first positioning part B1102 are guide protrusions, and the second positioning part A1201 and the second positioning part B1202 are guide grooves.
[0039] In this embodiment, as Figure 3 and Figure 4 As shown, the first end of the insertion cavity 501 is provided with a protrusion 130, and the first end of the button rod is provided with a spring buckle 140. When the protrusion 130 is engaged with the spring buckle 140, the lower part of the insertion cavity 501 is interference-fitted with the button rod, increasing the connection strength between the button rod and the guide post 50. The first end of the spring buckle 140 is provided with a first guide surface 1401, and the second end of the protrusion 130 is provided with a second guide surface 1302. When the guide is inserted into the insertion cavity 501, the first guide surface 1401 can abut against the second guide surface 1302, causing the spring buckle 140 to shrink and deform inward, making it easier for the button rod to be inserted into the insertion cavity 501, so that the protrusion 130 is engaged with the spring buckle 140. The second end of the snap fastener 140 is provided with a first limiting surface 1402, and the first end of the protrusion 130 is provided with a second limiting surface 1301. When the snap fastener 140 is engaged with the protrusion 130, the first limiting surface 1402 abuts against the second limiting surface 1301, reducing the possibility of the button lever coming out.
[0040] In this embodiment, as Figure 4 As shown, the outer side of the button rod is provided with a flange 150 extending radially outward. The radial dimension of the flange 150 is larger than the radial dimension of the insertion cavity 501. When the snap 140 is engaged with the protrusion 130, the flange 150 abuts against the bottom of the guide member, limiting the insertion stroke of the button rod and preventing the button rod from being over-inserted and causing damage to the guide post 50.
[0041] Example 2
[0042] A water tank includes a tank body and a button device as described above. The button device is installed through the tank body and can be used to open the drainage of the tank body by pressing one of two button levers. Specifically, a drain valve is installed inside the tank body. The first button lever 201 and the second button lever 202 in the button device are respectively connected to the full drain button 90 and the half drain button 90 of the drain valve. By pressing the first guide member 401 or the second guide member 402, the drain valve can be opened to fully drain or partially drain, thereby controlling the drainage volume of the water tank.
[0043] Example 3
[0044] A toilet includes a toilet body with a water tank as described above. The water outlet of the water tank is connected to a flushing water path, so that a full flush or a half flush can be activated by pressing a first guide 401 or a second guide 402, respectively.
[0045] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the scope of protection of this utility model.
Claims
1. A button device, comprising a body, characterized in that, The main body is provided with at least two button rods, which are movably connected to the main body along their respective axes. At least one of the two button rods is integrally formed with a limiting structure, which has a through space, and the other button rod is movably inserted through the through space.
2. The button device as described in claim 1, characterized in that, The limiting structure includes a limiting sleeve and a connecting arm integrally formed with the limiting sleeve. The limiting sleeve has the through space, and the limiting sleeve is integrally formed with the connected button rod through the connecting arm.
3. A button device as described in claim 2, characterized in that, The first end of the limiting sleeve has a protrusion on a portion of its end face, and the side of the limiting sleeve has a side opening that communicates with the passage space.
4. A button device as described in claim 1, characterized in that, The main body is provided with two movable guide members, each guide member having a plug-in cavity for connecting the button rod integrally formed with the limiting mechanism. The plug-in cavity is provided with a first positioning part, and the button rod integrally formed with the limiting mechanism is provided with a second positioning part. The first positioning part and the second positioning part slide against each other, so that the button rod integrally formed with the limiting structure can only be installed in a preset direction.
5. A button device as described in claim 4, characterized in that, The first positioning part includes a first positioning part A and a first positioning part B. The second positioning part includes a second positioning part A and a second positioning part B located on both sides of the button lever and having different external dimensions. The first positioning part A and the first positioning part B are respectively adapted to the second positioning part A and the second positioning part B in a one-to-one correspondence.
6. A button device as described in claim 4, characterized in that, The first end of the insertion cavity is provided with a protrusion, and the first end of the button rod is provided with a spring buckle. When the protrusion is engaged with the spring buckle, the lower part of the insertion cavity is interference-fitted with the button rod. The first end of the spring buckle is provided with a first guide surface, and the second end of the protrusion is provided with a second guide surface. When the guide is inserted into the insertion cavity, the first guide surface can abut against the second guide surface.
7. A button device as described in claim 6, characterized in that, The second end of the snap fastener is provided with a first limiting surface, and the first end of the protrusion is provided with a second limiting surface. When the snap fastener is engaged with the protrusion, the first limiting surface abuts against the second limiting surface.
8. A button device as described in claim 6, characterized in that, The outer side of the button rod is provided with a flange extending radially outward, and the radial dimension of the flange is larger than the radial dimension of the insertion cavity; when the snap fastener is engaged with the protrusion, the flange abuts against the bottom of the guide member, and the lower part of the insertion cavity is interference-fitted with the button rod.
9. A water tank, comprising a tank body, characterized in that, It also includes a button device as described in any one of claims 1-8, the button device being disposed in the water tank body, and the water tank body being drained by pressing one of the two button levers.
10. A toilet, comprising a toilet body, wherein the toilet body is provided with a flushing water passage, characterized in that, The toilet body is equipped with a water tank as described in claim 9, and the outlet of the water tank is connected to the flushing water path.