Drain valve switch with clutch structure

Abstract

The drain valve switch with the clutch structure is characterized in that the drain valve switch comprises a button body, a threaded piece and a linkage piece, and the button body is provided with a matching hole; the threaded piece is rotationally mounted in the matching hole; the linkage piece is movably installed on the button body, when the linkage piece moves to a first position, the linkage piece is used for limiting the circumferential direction of the threaded piece, and the button body, the threaded piece and the linkage piece can rotate synchronously; when the linkage piece moves to a second position, the linkage piece is used for giving way to the circumferential direction of the threaded piece, and the threaded piece can rotate relative to the matching hole; wherein a first limiting structure is arranged between the linkage piece and the button body, and the first limiting structure is used for limiting the linkage piece so as to prevent the linkage piece from being separated from the button body.

Description

Technical Field

[0001] The embodiment of the utility model relates to the technical field of drain valve switches, and in particular to a drain valve switch with a clutch structure. Background Art

[0002] The toilet drain valve switch is an important component inside the toilet tank, which controls the flushing and draining functions of the toilet.

[0003] In related technology, Chinese patent CN210066925U describes a drain valve switch comprising a button body, a stopper cover, a linkage member, and a threaded member. The stopper cover is located at the bottom of the button body and screws into the portion of the threaded member that extends beyond the button body. The stopper cover prevents the linkage member from falling out. However, the presence of the stopper cover increases the height of the button body, resulting in a high installation height.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present invention, and therefore may include information that does not constitute prior art known to ordinary technicians in this field. Utility Model Content

[0005] The purpose of the present utility model is to provide a drain valve switch with a clutch structure, which at least to a certain extent overcomes the problem of a high button installation height caused by the provision of a limit cover on the drain valve switch in the related art.

[0006] Other features and advantages of the present invention will become apparent from the following detailed description, or may be learned in part by the practice of the present disclosure.

[0007] According to one aspect of the utility model, a drain valve switch with a clutch structure is provided, which is characterized in that it includes a button body, a threaded part and a linkage part, the button body is provided with a matching hole; the threaded part is rotatably installed in the matching hole; the linkage part is movably installed in the button body, when the linkage part moves to a first position, the linkage part is used to limit the circumference of the threaded part, and the button body, the threaded part and the linkage part can rotate synchronously; when the linkage part moves to a second position, the linkage part is used to make way for the circumference of the threaded part, and the threaded part can rotate relative to the matching hole; wherein a first limiting structure is provided between the linkage part and the button body, and the first limiting structure is used to limit the linkage part to prevent the linkage part from detaching from the button body.

[0008] According to one embodiment of the present invention, a slot is provided on the side surface of the button body, and the linkage member can move up and down along the slot.

[0009] According to one embodiment of the present invention, the first limiting structure includes a first undercut and a second undercut, the first undercut is arranged at the bottom of the slot, and the second undercut is arranged at the bottom of the linkage member. After the linkage member is installed in the slot, the second undercut can be supported on the first undercut.

[0010] According to an embodiment of the present invention, the linkage member is inserted into the slot from the bottom of the slot, and the second undercut can be supported on the first undercut after passing over the first undercut.

[0011] According to an embodiment of the present invention, a second limiting structure is provided between the threaded component and the button body, and the second limiting structure is used for axial limiting and circumferential evasion of the threaded component.

[0012] According to one embodiment of the present invention, the second limiting structure includes a third undercut and a fourth undercut, the third undercut is arranged in the matching hole, and the fourth undercut is arranged on the outer wall of the threaded part, and the third undercut and the fourth undercut are used to limit the axial upward movement of the threaded part.

[0013] According to one embodiment of the present invention, the second limiting structure also includes a limiting protrusion, which is arranged on the top periphery of the threaded member, and the third undercut is located between the limiting protrusion and the fourth undercut, and the limiting protrusion and the third undercut are used to limit the axial downward movement of the threaded member.

[0014] According to one embodiment of the present invention, the third undercut is a convex ring extending radially inward along the inner wall of the fitting hole.

[0015] According to one embodiment of the present invention, the linkage member is provided with a limit block, and the threaded member is provided with a protrusion. When the linkage member moves to a first position, the limit block is used to limit the circumferential rotation of the protrusion along the threaded member; when the linkage member moves to a second position, the limit block is used to make way for the circumferential rotation of the protrusion along the threaded member.

[0016] According to one embodiment of the present invention, a strip groove is provided on the linkage member, the length direction of the strip groove is parallel to the axial direction of the threaded member, the limit block is arranged in the strip groove, and the limit block protrudes from the limit groove, when the linkage member moves to the first position, the position of the limit block corresponds to the position of the protrusion, thereby limiting the circumferential rotation of the protrusion along the threaded member; when the linkage member moves to the second position, the limit block and the protrusion are staggered, thereby giving way to the circumferential rotation of the protrusion along the threaded member.

[0017] From the above technical solution, it can be seen that the advantages and positive effects of the drain valve switch with a clutch structure of the utility model are:

[0018] The drain valve switch with a clutch structure provided by the present invention is movably mounted on the button body via a linkage. When the linkage moves to the first position, the linkage is used to limit the circumference of the threaded part, and the button body, the threaded part and the linkage can rotate synchronously. When the linkage moves to the second position, the linkage is used to make way for the circumference of the threaded part, and the threaded part can rotate relative to the matching hole. A first limiting structure is provided between the linkage and the button body, and the first limiting structure is used to limit the linkage to prevent the linkage from detaching from the button body. In this way, the limiting cover can be removed, the number of parts of the drain valve switch can be reduced, and the height of the button on the button body can be reduced, thereby reducing the installation height of the button.

[0019] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and other features and advantages of the present invention will become more apparent by describing in detail example embodiments thereof with reference to the accompanying drawings.

[0021] Figure 1 A schematic structural diagram of a drain valve switch with a clutch structure at a first angle is shown in an embodiment of the present disclosure.

[0022] Figure 2 A schematic structural diagram of a drain valve switch with a clutch structure at a second angle is shown in an embodiment of the present disclosure.

[0023] Figure 3 A schematic diagram of the exploded structure of a drain valve switch with a clutch structure in an embodiment of the present disclosure is shown.

[0024] Figure 4 A schematic cross-sectional structure diagram of a drain valve switch with a clutch structure in an embodiment of the present disclosure at a first viewing angle is shown.

[0025] Figure 5 A schematic cross-sectional structure diagram of a drain valve switch with a clutch structure in an embodiment of the present disclosure at a second viewing angle is shown.

[0026] Figure 6 A schematic structural diagram is shown of the linkage member limiting the threaded member when the linkage member moves to the first position in an embodiment of the present disclosure.

[0027] Figure 7 yes Figure 6 Schematic diagram of the cross-sectional structure when the intermediate linkage limits the threaded component.

[0028] Figure 8 A structural schematic diagram showing the linkage member giving way to the threaded member when the linkage member moves to the second position in an embodiment of the present disclosure.

[0029] Figure 9 yes Figure 8 Schematic diagram of the cross-sectional structure when the intermediate linkage member gives way to the threaded member.

[0030] The description of the accompanying drawings is as follows:

[0031] 100, button body; 110, matching hole; 111, third undercut; 120, button; 130, inner cavity; 140, slot; 141, first undercut;

[0032] 200, threaded member; 210, fourth undercut; 220, limiting ridge; 230, bump; 240, transmission rod;

[0033] 300, linkage member; 310, second undercut; 320, strip groove; 330, limit block. DETAILED DESCRIPTION

[0034] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. Like reference numerals in the figures represent like or similar structures, and thus their detailed description will be omitted.

[0035] refer to Figures 1 to 4 This embodiment provides a drain valve switch with a clutch structure. The drain valve switch includes a button body 100, a threaded member 200, and a linkage member 300. The button body 100 is provided with a button 120, which is also provided with a mating hole 110. The threaded member 200 is rotatably mounted in the mating hole 110, and the linkage member 300 is movably mounted on the side of the button body 100. A first limiting structure is provided between the linkage member 300 and the button body 100. The first limiting structure is used to limit the linkage member 300 to prevent it from detaching from the button body 100. This allows the limiting cover to be removed, reducing the number of parts in the drain valve switch and reducing the height of the button 120 on the button body 100, thereby reducing the installation height of the button 120.

[0036] The button body 100 defines an inner cavity 130, which is located above and communicates with the mating hole 110. The button 120 is disposed within the inner cavity 130. The threaded member 200 is a hollow structure with openings at both ends. A transmission rod 240 extends through the threaded member 200, and one end of the transmission rod 240 is connected to the button 120. When the button 120 is pressed downward, the button 120 drives the transmission rod 240 downward, and the lower end of the transmission rod 240 activates the starter assembly (not shown) of the drain valve, thereby opening the drain valve for drainage. A button 120 elastic member is disposed at the bottom of the button 120. When the external force pressing the button 120 is removed, the button 120 and the transmission rod 240 are activated by the elastic member to return to their initial position.

[0037] When the linkage member 300 moves to the first position, the linkage member 300 is used to limit the circumferential position of the threaded member 200, and the button body 100, the threaded member 200, and the linkage member 300 can rotate synchronously. When the linkage member 300 moves to the second position, the linkage member 300 is used to make way for the circumferential position of the threaded member 200, and the threaded member 200 can rotate relative to the matching hole 110. The threaded member 200 and the button body 100, as well as the threaded member 200 and the linkage member 300, cannot rotate synchronously.

[0038] refer to Figures 1 to 4 The linkage member 300 is movably mounted on the button body 100 .

[0039] A slot 140 is defined on the side of the button body 100. The slot 140 extends vertically downward, and its length is parallel to the axial direction of the screw member 200. The linkage member 300 can be inserted upward from the bottom of the slot 140 and can move up and down along the slot 140.

[0040] The first limiting structure can limit the linkage member 300, preventing the linkage member 300 from being separated from the button body 100 from the bottom of the slot 140. The first limiting structure includes a first undercut 141 and a second undercut 310. The first undercut 141 is provided on both sides of the bottom of the slot 140, and the second undercut 310 is provided on both sides of the bottom of the linkage member 300. When the linkage member 300 is inserted into the slot 140, the second undercut 310 can be supported on the first undercut 141, wherein the second undercut 310 can be supported on the first undercut 141 after passing over the first undercut 141. The ends of the first undercut 141 and the second undercut 310 are both provided with matching guide slopes, which are used to guide the linkage member 300 into the slot 140.

[0041] refer to Figures 1 to 5The threaded member 200 is rotatably mounted in the mating hole 110 , and a second limiting structure is provided between the threaded member 200 and the button body 100 , and the second limiting structure is used for axial limiting and circumferential giving way of the threaded member 200 .

[0042] The second limiting structure includes a third undercut 111 and a fourth undercut 210. The third undercut 111 is disposed within the mating hole 110 and is a protruding ring extending radially inward along the inner wall of the mating hole 110. The third undercut 111 can be a circular plate. The fourth undercut 210 can be provided on both sides of the outer wall of the threaded member 200. The third undercut 111 and the fourth undercut 210 cooperate to limit the upward axial movement of the threaded member 200.

[0043] The second limiting structure also includes a limiting ridge 220, which is disposed on the top periphery of the threaded member 200. The limiting ridge 220 extends outward from the top of the threaded member 200 and is in the form of an annular rib. The third undercut 111 is located between the limiting ridge 220 and the fourth undercut 210. The spacing between the limiting ridge 220 and the third undercut 111 is slightly greater than the thickness of the third undercut 111. The third undercut 111 is sandwiched between the limiting ridge 220 and the fourth undercut 210. When the threaded member 200 rotates circumferentially, the limiting ridge 220 supports the third undercut 111, preventing the threaded member 200 from sliding downwardly along its axial direction out of the mating hole 110.

[0044] refer to Figures 6 to 9 The linkage member 300 is provided with a limit block 330, and an outwardly extending protrusion 230 is provided on the outer side of the limit surface on the threaded member 200. When the linkage member 300 moves to the first position, the limit block 330 can limit the circumferential rotation of the protrusion 230 along the threaded member 200. When the linkage member 300 moves to the second position, the limit block 330 can give way to the circumferential rotation of the protrusion 230 along the threaded member 200.

[0045] The linkage member 300 may be L-shaped, with a strip groove 320 defined at its bottom. The length of the strip groove 320 is parallel to the axial direction of the threaded member 200. A stopper 330 is disposed within the strip groove 320 and protrudes from the stopper. An elastic member, such as a spring, may be disposed between the bottom of the stopper 330 and the bottom of the strip groove 320.

[0046] like Figure 6 and Figure 7As shown, when the linkage member 300 moves to the first position (the linkage member 300 can move upward along the slot 140 to the first position), the position of the limit block 330 corresponds to the position of the protrusion 230, thereby limiting the circumferential rotation of the protrusion 230 along the threaded member 200. The limit block 330 moves upward synchronously with the linkage member 300 to the limit position. At this time, the limit block 330 is located on the rotation trajectory of the protrusion 230, so that the limit block 330 and the protrusion 230 abut each other, thereby forming a circumferential transmission engagement. This enables the button body 100, the threaded member 200, and the linkage member 300 to rotate synchronously in the circumferential direction.

[0047] like Figure 8 and Figure 9 As shown, when the linkage member 300 moves to the second position (the linkage member 300 can move downward along the slot 140 to the second position), the stop block 330 is offset from the protrusion 230, thereby giving way to the circumferential rotation of the protrusion 230 along the threaded member 200. The stop block 330 moves downward synchronously with the linkage member 300 to the giving way position. At this time, the stop block 330 and the protrusion 230 are offset from each other in the axial direction of the threaded member 200, allowing the threaded member 200 to automatically rotate relative to the linkage member 300 and the button body 100.

[0048] In another example, the first and second limiting structures may be snap-fit ​​structures, which may include spring plates, ribs, buckles, slots, and the like. For example, a retractable spring plate may be provided at the bottom of the slot 140, and a rib may be provided at the bottom of the linkage member 300. The spring plate and the rib cooperate to prevent the linkage member 300 from sliding out of the bottom of the slot 140. For another example, a rib may be provided on the outer wall of the threaded member 200, and a slot may be provided on the inner wall of the mating hole 110. The rib may be inserted into the slot 140, thereby achieving axial position restriction and circumferential clearance for the threaded member 200. For another example, an outwardly protruding buckle may be provided on the outer wall of the threaded member 200, and a slot may be provided on the inner wall of the mating hole 110. The buckle may be engaged in the slot and movable within the slot. This may also achieve axial position restriction and circumferential clearance for the threaded member 200, and the like.

[0049] In the embodiments of the utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be understood to indicate or imply relative importance; the term "plurality" refers to two or more, unless otherwise expressly defined. Terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; "connected" can mean a direct connection or an indirect connection through an intermediary. For those skilled in the art, the specific meanings of the above terms in the embodiments of the utility model can be understood according to the specific circumstances.

[0050] In the description of the embodiments of the utility model, it needs to be understood that the directions or positional relationships indicated by terms such as "up", "down", "left", "right", "front", and "back" are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the embodiments of the utility model.

[0051] The above are merely preferred embodiments of the utility model and are not intended to limit the utility model. Those skilled in the art will readily appreciate that various modifications and variations of the utility model embodiments are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the utility model embodiments shall be included within the scope of protection of the utility model embodiments.

Claims

1. A drain valve switch with a clutch structure, characterized in that: include: The button body is provided with a matching hole; A threaded member, rotatably mounted in the matching hole; a linkage member movably mounted on the button body, wherein when the linkage member moves to a first position, the linkage member is used to limit the circumferential position of the threaded member, and the button body, the threaded member, and the linkage member can rotate synchronously; when the linkage member moves to a second position, the linkage member is used to give way to the circumferential position of the threaded member, and the threaded member can rotate relative to the matching hole; Wherein, a first limiting structure is provided between the linkage member and the button body, and the first limiting structure is used to limit the linkage member to prevent the linkage member from being separated from the button body.

2. The drain valve switch with a clutch structure according to claim 1, characterized in that: A slot is provided on the side surface of the button body, and the linkage member can move up and down along the slot.

3. The drain valve switch with a clutch structure according to claim 2, characterized in that: The first limiting structure includes a first undercut and a second undercut, the first undercut is arranged at the bottom of the slot, and the second undercut is arranged at the bottom of the linkage member. After the linkage member is installed in the slot, the second undercut can be supported on the first undercut.

4. The drain valve switch with a clutch structure according to claim 3, characterized in that: The linkage member is inserted into the slot from the bottom of the slot, and the second undercut can be supported on the first undercut after passing over the first undercut.

5. The drain valve switch with a clutch structure according to claim 1, characterized in that: A second limiting structure is provided between the threaded component and the button body, and the second limiting structure is used for axial limiting and circumferential evasion of the threaded component.

6. The drain valve switch with a clutch structure according to claim 5, characterized in that: The second limiting structure includes a third undercut and a fourth undercut, the third undercut is arranged in the matching hole, and the fourth undercut is arranged on the outer wall of the threaded part, and the third undercut and the fourth undercut are used to limit the axial upward movement of the threaded part.

7. The drain valve switch with a clutch structure according to claim 6, characterized in that: The second limiting structure also includes a limiting protrusion, which is arranged on the top periphery of the threaded member. The third undercut is located between the limiting protrusion and the fourth undercut, and the limiting protrusion and the third undercut are used to limit the axial downward movement of the threaded member.

8. The drain valve switch with a clutch structure according to claim 6, characterized in that: The third undercut is a convex ring extending radially inwardly along the inner wall of the matching hole.

9. The drain valve switch with a clutch structure according to claim 1, characterized in that: The linkage member is provided with a limit block, and the threaded member is provided with a protrusion. When the linkage member moves to a first position, the limit block is used to limit the circumferential rotation of the protrusion along the threaded member; when the linkage member moves to a second position, the limit block is used to make way for the circumferential rotation of the protrusion along the threaded member.

10. The drain valve switch with a clutch structure according to claim 9, characterized in that: A strip groove is provided on the linkage member, the length direction of the strip groove is parallel to the axial direction of the threaded member, the limit block is arranged in the strip groove, and the limit block protrudes from the limit groove. When the linkage member moves to the first position, the position of the limit block corresponds to the position of the protrusion, thereby limiting the circumferential rotation of the protrusion along the threaded member; when the linkage member moves to the second position, the limit block and the protrusion are staggered, thereby giving way to the circumferential rotation of the protrusion along the threaded member.

Images