Closestool cover plate quick-release connecting structure
By improving the button and pivot design of the quick-release connection structure of the toilet seat, and utilizing the cooperation of springs and elastic arms, the problem of high frictional resistance of the elastic hook is solved, making the unlocking operation easier and smoother, and improving disassembly efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-04-03
AI Technical Summary
In existing quick-release toilet seat connection structures, the elastic hooks suffer from high frictional resistance due to the compression of the pins and pivots, resulting in a laborious and unsmooth pressing operation.
The design incorporates a button, pivot, pin, and spring. Through the cooperation of the locking plate and the first and second elastic arms, the spring force and guide slope reduce friction, making the unlocking operation easier. The end of the second elastic arm is provided with a raised edge and a clearance groove to shorten the unlocking stroke and ensure stable engagement.
The unlocking operation is smoother and less strenuous, reducing the frictional resistance between the hook and the edge, and improving disassembly efficiency and operational sensitivity.
Smart Images

Figure CN224070307U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a quick-release connection structure for toilet seat panels. Background Technology
[0002] The quick-release connection structure for toilet seat covers is used to connect and quickly remove the seat from the ceramic body. It typically consists of three parts: a pin mounted on the ceramic body, a pivot mounted on the seat, and a button that engages with the pivot. During assembly, the pin engages with both the pivot and the button. To remove the seat, press the button until the pin is released, allowing it to be removed from the pivot. For easier pressing, the pin usually has a spring hook. Pressing the button releases the hook, allowing it to engage with the pivot, eliminating the need to hold the button down. However, because the spring hook is subjected to pressure from both the pin and the pivot, it experiences significant frictional resistance, making pressing difficult and unlocking awkward. Utility Model Content
[0003] This utility model provides a quick-release connection structure for a toilet seat, which makes unlocking easier and overcomes the shortcomings of the prior art. The technical solution adopted by this utility model to solve its technical problem is as follows:
[0004] The toilet seat quick-release connection structure includes a button, a pivot, a pin, and a spring. The button has a locking plate and two first elastic arms arranged symmetrically on the left and right sides. Each first elastic arm has a protrusion on its inner side and a hook on its outer end. The button and the pivot are axially movable and inserted into each other. The pivot has a pin hole corresponding to the pin and a retaining edge corresponding to the hook. The spring is tensioned between the button and the pivot. When connected, the pin is inserted into the pin hole, and the locking plate retracts axially under the force of the spring to lock the pin. When unlocked, the locking plate is released by external force. The spring force overcomes the elastic force and moves axially to release the pin. At the same time, the pin squeezes the protrusion, causing the end of the first elastic arm to expand outward. After the external force is removed, the hook moves axially backward under the elastic force of the spring and locks on the stop edge, thereby keeping the locking piece separated from the pin. The rotating shaft is provided with two second elastic arms that are mirror-symmetrical from left to right. The two second elastic arms are located outside the two first elastic arms respectively. The stop edge is provided at the end of the two second elastic arms respectively. When unlocking, the end of the second elastic arm expands outward under the squeezing action of the hook.
[0005] In a preferred embodiment: a raised edge is provided on the inner side of the end of the second elastic arm, and the hook moves forward axially and touches the raised edge, pushing the end of the second elastic arm outward.
[0006] In a preferred embodiment: a pairing guide ramp is provided between the convex edge and the hook.
[0007] In a preferred embodiment: the outer side of the first elastic arm is provided with a relief groove corresponding to the protruding edge, and when the hook is engaged with the stop edge, the protruding edge is embedded in the relief groove.
[0008] In a preferred embodiment: the pin hole is a blind hole.
[0009] Compared with the prior art, this technical solution has the following advantages:
[0010] 1. The stop is located at the end of the second elastic arm. During the unlocking operation, the pressure applied by the hook to the second elastic arm can cause the end of the second elastic arm to open outward, thereby reducing the resistance to the hook's forward movement and making the unlocking operation smooth and effortless.
[0011] 2. As the second elastic arm opens outward under the push of the hook, the position of the stop edge moves backward as the end of the second elastic arm swings outward in the axial direction. Thus, the hook can engage with the stop edge in advance, which helps to shorten the stroke of the unlocking operation.
[0012] 3. The inner side of the end of the second elastic arm is provided with a protruding edge. Therefore, the hook only needs to be pushed when it moves to the position of the protruding edge. It only needs to pass the protruding edge to engage with the stop edge. The contact time between the hook and the second elastic arm is short, making the operation more labor-saving and sensitive.
[0013] 4. The guide ramp reduces the friction between the hook and the convex edge, further reducing operating resistance.
[0014] 5. The recessed groove accommodates the protruding edge, preventing the second elastic arm from pressing against the first elastic arm, thus making the hook and the guard edge more stable. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0016] Figure 1 An exploded 3D diagram of the quick-release connection structure of the toilet seat is shown.
[0017] Figure 2 It is illustrated Figure 1 A three-dimensional schematic diagram of the button of the quick-release connection structure of the toilet seat shown.
[0018] Figure 3 It is illustrated Figure 1 Another three-dimensional schematic diagram of the button of the quick-release connection structure of the toilet seat shown.
[0019] Figure 4 It is illustrated Figure 1 The diagram shows the assembly of the quick-release connection structure for the toilet seat.
[0020] Figure 5 It is illustrated Figure 1 The diagram shows the quick-release connection structure of the toilet seat, in which the first elastic arm pushes the second elastic arm to swing outward during the unlocking process.
[0021] Figure 6 It is illustrated Figure 1 The diagram shows the quick-release connection structure of the toilet seat, where the hook engages with the edge after unlocking.
[0022] Figure 7 It is illustrated Figure 1 The diagram shows the quick-release connection structure of the toilet seat, where the locking plate releases the pin after unlocking.
[0023] Figure 8 It is illustrated Figure 1 The diagram shows the quick-release connection structure of the toilet seat after the pin has been removed. Detailed Implementation
[0024] Please refer to Figures 1 to 8 A quick-release toilet seat connection structure includes a button 10, a pivot 20, a pin 30, and a spring 40. The button 10 has a locking piece 12 and two first elastic arms 14 arranged symmetrically in the left and right sides. The first elastic arms 14 have a protrusion 142 on the inner side near the end and a hook 144 on the outer side of the end. The button 10 is axially connected to the pivot 20. The pivot 20 has a pin hole 22 corresponding to the pin 30 and a retaining edge 24 corresponding to the hook 144. The spring 40 is tensioned between the button 10 and the pivot 20. The pivot 20 has two second elastic arms 26 arranged symmetrically in the left and right sides. The two second elastic arms 26 are respectively located outside the two first elastic arms 14, and the retaining edges 24 are respectively provided at the ends of the two second elastic arms 26.
[0025] During connection, the pin 30 is inserted into the pin hole 22, and the locking plate 12 is driven by the elastic force of the spring 40 to move backward along the axis and lock the pin 30. The structure of the locking plate locking the pin is a known structure. Specifically, the locking plate 12 is provided with a locking hole. When the pin 30 is inserted into the pin hole 22, it passes through the locking hole together. The outer wall of the pin 30 is provided with a locking groove. After the locking hole moves axially, the edge enters the locking groove to lock the pin.
[0026] During disassembly, the locking plate 12, driven by external force, overcomes the elastic force of the spring 40 and advances axially to release the pin 60, i.e., the edge of the lock hole exits from the lock groove. Simultaneously, the pin 30, by pressing the protrusion 142, causes the end of the first elastic arm 30 to expand outward, meaning the end of the first elastic arm swings outward. The end of the second elastic arm 26, under the pressure of the hook 144, also expands outward. In other words, under external pressure, the pin pushes the end of the first elastic arm to swing outward, and the first elastic arm in turn drives the end of the second elastic arm to swing outward. When the hook 144 passes behind the stop 24, the end of the second elastic arm 26 swings inward. After the external force is removed, the hook 144, driven by the spring force, retracts axially and locks onto the stop 24, thus keeping the locking plate 12 separated from the pin 30. At this point, the pin 30 can be removed. After the pin 30 is removed, the protrusion 142 of the first elastic arm 14 no longer presses against the pin 30, and the first elastic arm 14, which has lost its support, swings inward to return to its initial state. The hook 144 automatically separates from the stop 24, and under the drive of the spring 40, the button 10 moves axially back to its initial position.
[0027] Preferably, the inner side of the end of the second elastic arm 26 is provided with a protrusion 262. After the hook 144 moves forward axially and touches the protrusion 262, it pushes the end of the second elastic arm 26 outward.
[0028] Preferably, a pair of guide ramps are provided between the convex edge 262 and the hook 144.
[0029] Preferably, the outer side of the first elastic arm 14 is provided with a relief groove 146 corresponding to the protrusion 262, and when the hook 144 is engaged with the stop 24, the protrusion 262 is embedded in the relief groove 146.
[0030] Preferably, the pin hole 32 is a blind hole, so when connecting, after the pin 30 is fully inserted into the lock hole 32, the lock plate can be aligned with the lock groove, ensuring that the edge of the lock hole can be properly inserted into the lock groove.
[0031] The above description is only a preferred embodiment of the present utility model, and therefore cannot be used to limit the scope of the present utility model. All equivalent changes and modifications made in accordance with the scope of the present utility model patent and the contents of the specification should still fall within the scope of the present utility model.
Claims
1. A quick-release connecting structure for a toilet cover, comprising a button, a rotating shaft, a latch and a spring, the button being provided with a locking piece and two first elastic arms symmetrically arranged on the left and right sides, the first elastic arms being provided with a protrusion on the inner side and a hook on the outer end, the button being movably connected with the rotating shaft in the axial direction, the rotating shaft being provided with a pin hole corresponding to the latch and a blocking edge corresponding to the hook, the spring being tensioned between the button and the rotating shaft, when connected, the latch is driven by the elastic force of the spring to retreat in the axial direction and lock the latch, when unlocked, the locking piece is driven by external force to overcome the elastic force and advance in the axial direction to release the latch, at the same time, the latch is extruded by the protrusion to cause the outer end of the first elastic arm to expand outward, after the external force is removed, the hook is driven by the elastic force of the spring to retreat in the axial direction and be clamped on the blocking edge, so that the locking piece and the latch are separated, characterized in that: The rotating shaft is internally provided with two second elastic arms which are mirror-symmetrical to each other, the two second elastic arms are respectively located at the outer sides of the two first elastic arms, and the ends of the two second elastic arms are respectively provided with the blocking edges; when being unlocked, the ends of the second elastic arms are expanded outward under the extrusion of the hooks.
2. The quick-release connection structure of a toilet lid according to claim 1, characterized in that: The inner side of the end of the second elastic arm is provided with a convex edge, and the hooks push the ends of the second elastic arms outward after contacting the convex edge.
3. The quick release connection structure of a toilet seat according to claim 2, wherein: A guide inclined surface is arranged between the convex edge and the hooks.
4. The quick release connection structure of a toilet seat according to claim 2 or 3, characterized in that: A recess is arranged on the outer side of the first elastic arm corresponding to the convex edge, and the convex edge is embedded in the recess when the hooks are clamped with the blocking edges.
5. The quick release connection structure of a toilet seat according to claim 1, characterized in that: The pin hole is a slot.