A damping bumper

Abstract

A damping rebounder, comprising a shell and a driving assembly slidingly arranged in the inner cavity of the shell; the driving assembly comprises a push rod, a guide damping seat, a guide damping ring, a damping ring seat, a damping rubber ring, a buckle wire tail spike, a spring and a buckle wire tail spike seat; one end of the push rod is threadedly sleeved with the guide damping seat, the guide damping ring is movably sleeved on the surface of the guide damping seat, and the other end of the guide damping seat is sleeved with one end of the damping ring seat; the damping rubber ring is arranged between the guide damping seat and the damping ring seat and abuts against the inner wall of the shell; the buckle wire tail spike is movably hung in the inner cavity of the damping ring seat, one end of the buckle wire tail spike is rotatably connected with the buckle wire tail spike seat; and the spring is arranged between the buckle wire tail spike seat and the damping ring seat. The damping rebounder utilizes the frictional damping of the guide damping ring and the damping rubber ring and the inner wall of the shell when the spring is released, buffers the reset speed of the push rod, smoothly pushes open the cabinet door, and avoids repeated jumping of the door plate.

Description

Technical Field

[0001] This invention relates to the field of rebound device technology, specifically a damped rebound device. Background Technology

[0002] A spring-loaded door opener is a common furniture hardware accessory widely used for opening and closing doors of wardrobes, cabinets, and drawers. Current spring-loaded door openers typically use a spring as the driving element. Pressing the door panel disengages the internal latching mechanism, releasing the spring's elasticity to pop the door panel open. However, in actual use, due to the lack of a buffer structure when the spring is released, the spring force is released instantaneously, causing the door panel to open too quickly. This results in repeated bouncing and vibration at the end of the opening, which not only affects the user experience but also easily causes impact damage to the door panel and hinges, shortening the furniture's lifespan. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a damping rebound device that solves the problem that existing rebound devices lack buffering when the spring is released, causing the door panel to bounce repeatedly when it is opened.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a damped rebound device. It includes a housing, and a driving assembly is slidably disposed within the inner cavity of the housing; The drive assembly includes a push rod, a guide damping seat, a guide damping ring, a damping ring seat, a damping rubber ring, a wire fastening pin, a spring, and a wire fastening pin seat; One end of the push rod is threadedly connected to one end of the guide damping seat, the guide damping ring is movably sleeved on the surface of the guide damping seat, and the other end of the guide damping seat is movably sleeved on one end of the damping ring seat. The damping rubber ring is disposed between the guide damping seat and the damping ring seat, and the outer peripheral wall of the damping rubber ring abuts against the inner wall of the outer shell; The fastening pin is movably hooked into the inner cavity of the damping ring seat, and one end of the fastening pin is rotatably connected to the fastening pin seat. The spring is disposed between the end pin seat and the damping ring seat.

[0005] Preferably, the guide damping ring is a conical ring structure, and its outer wall abuts against the inner wall of the outer shell.

[0006] Preferably, one end of the damping rubber ring abuts against the middle step surface of the damping ring seat, and the other end of the damping rubber ring abuts against the end face of the guide damping ring.

[0007] Preferably, the push rod is slidably sleeved on the front end of the inner cavity of the housing, and the outer peripheral wall of the damping ring seat is slidably fitted with the inner wall of the housing.

[0008] Preferably, the inner wall of the outer shell is symmetrically provided with limiting grooves, and the outer peripheral wall of the damping ring seat is symmetrically provided with limiting strips, the limiting strips being slidably embedded in the corresponding limiting grooves.

[0009] Preferably, one end of the spring abuts against the middle stepped surface of the damping ring seat, and the other end of the spring abuts against the end face of the buckle pin seat.

[0010] Preferably, the outer peripheral wall of the buckle pin holder is assembled to the rear end of the inner cavity of the outer shell by a limiting block, and the outer shell and the buckle pin holder are respectively provided with pin holes, and the two are fixed by a pin shaft passing through the pin holes.

[0011] This invention provides a damped rebound device. Compared with the prior art, it has the following advantages: This damping rebound device, by incorporating a guide damping ring and a damping rubber ring in the drive assembly, creates frictional damping between these two rings and the inner wall of the outer casing during the reset process. When the spring is released, the reset speed of the push rod is effectively suppressed by the damping force, thus allowing the cabinet door to be pushed open slowly and smoothly. This avoids the problem of the door panel popping out rapidly and repeatedly bouncing due to the instantaneous release of the spring force. Simultaneously, the guide damping ring adopts a conical ring structure, and its contact area and friction with the inner wall of the outer casing can be adaptively adjusted according to the movement state, further improving the smoothness and reliability of the damping effect. Furthermore, the sliding fit between the outer casing and the damping ring seat through a limiting groove and a limiting strip ensures the accuracy of the movement direction and the consistency of operation of each component. The overall structure is compact, easy to assemble, and has a long service life. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the reverse side of the structure of the present invention; Figure 3 This is a schematic diagram showing the structural breakdown of the present invention; Figure 4 This is a cross-sectional view of the structure of the present invention; Figure 5 This is a schematic diagram of the outer shell of the present invention; Figure 6 This is a schematic diagram of the structural driving component of the present invention.

[0013] In the diagram: 1. Outer shell; 11. Limiting groove; 2. Drive assembly; 21. Push rod; 22. Rubber head; 23. Guide damping seat; 24. Guide damping ring; 25. Damping ring seat; 251. Limiting strip; 26. Damping rubber ring; 27. Wire fastening pin; 28. Spring; 29. ​​Wire fastening pin seat. Detailed Implementation

[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] Please see Figures 1 to 6 The present invention provides a technical solution: a damping rebound device, including a shell 1, the shell 1 being a hollow cylindrical structure with an open front end, the inner cavity of which is used to accommodate and guide the movement of various components of the drive assembly 2, and the rear end of the inner cavity of the shell 1 is provided with a limiting step and a pin hole structure for assembling the hook tail nail seat 29.

[0016] The drive assembly 2 includes a push rod 21, a guide damping seat 23, a guide damping ring 24, a damping ring seat 25, a damping rubber ring 26, a wire fastening tail pin 27, a spring 28, and a wire fastening tail pin seat 29. The front end of the push rod 21 is fixedly provided with a rubber head 22, which is made of flexible material and is used to directly abut against the cabinet door to avoid rigid collision and scratches between the push rod 21 and the cabinet door. The push rod 21 is slidably sleeved on the front end of the inner cavity of the outer shell 1, and the outer peripheral wall of the rear end of the push rod 21 is provided with external threads.

[0017] The guide damping seat 23 is a cylindrical structure with an internal threaded hole at one end. The rear end of the push rod 21 is fixed to one end of the guide damping seat 23 by external thread, thereby realizing the linkage between the push rod 21 and the guide damping seat 23. The guide damping ring 24 is movably sleeved on the outer peripheral wall of the guide damping seat 23, and the other end of the guide damping seat 23 is movably sleeved on the front end of the damping ring seat 25.

[0018] The guide damping ring 24 has a conical ring structure, that is, its outer peripheral wall is in the shape of a cone. The guide damping ring 24 is movably sleeved on the surface of the guide damping seat 23. The conical outer peripheral wall of the guide damping ring 24 abuts against the inner wall of the outer shell 1. When the drive assembly 2 moves, the conical outer wall of the guide damping ring 24 rubs against the inner wall of the outer shell 1, forming a damping force.

[0019] The front end of the damping ring seat 25 is sleeved on the rear end cavity of the guide damping seat 23. The outer peripheral wall of the damping ring seat 25 slides against the inner wall of the outer shell 1 to ensure that the damping ring seat 25 slides smoothly along the axial direction in the inner cavity of the outer shell 1. The middle position of the damping ring seat 25 is provided with an inwardly protruding annular step surface, which is used to abut against the ends of the damping rubber ring 26 and the spring 28.

[0020] The inner wall of the outer casing 1 has symmetrically oriented limiting grooves 11 along the axial direction. The limiting grooves 11 are elongated grooves. The outer peripheral wall of the damping ring seat 25 has symmetrically protruding limiting strips 251 corresponding to the positions of the limiting grooves 11. The limiting strips 251 are slidably embedded in the corresponding limiting grooves 11. The sliding cooperation between the limiting grooves 11 and the limiting strips 251 can restrict the circumferential rotation of the damping ring seat 25 in the inner cavity of the outer casing 1, ensuring the positioning accuracy and motion consistency between the components of the drive assembly 2.

[0021] The damping ring 26 is a ring-shaped elastic body, disposed between the guide damping seat 23 and the damping ring seat 25. One end of the damping ring 26 abuts against the middle step surface of the damping ring seat 25, and the other end of the damping ring 26 abuts against the end face of the guide damping ring 24. At the same time, the outer peripheral wall of the damping ring 26 abuts against the inner wall of the outer shell 1, thereby generating elastic friction damping during movement.

[0022] The fastening pin 27 is a rod-shaped component with a hook or claw at one end. The fastening pin 27 is movably hooked into the inner cavity of the damping ring seat 25. One end of the fastening pin 27 extends into the inner cavity of the damping ring seat 25 and forms a detachable hooking engagement with the groove on the inner side wall of the damping ring seat 25. The other end of the fastening pin 27 extends out of the rear end of the damping ring seat 25 and is rotatably connected to the fastening pin seat 29 through a rotating shaft. The fastening pin 27 can swing around the rotating shaft on the fastening pin seat 29 to achieve engagement and disengagement with the damping ring seat 25.

[0023] Spring 28 is sleeved on the outside of the fastening pin 27. One end of spring 28 abuts against the middle step surface of the damping ring seat 25, and the other end of spring 28 abuts against the front end face of the fastening pin seat 29. Spring 28 is always in a compressed state to store elastic force. When the fastening pin 27 is disengaged from the damping ring seat 25, spring 28 releases elastic force and pushes the damping ring seat 25 and the guide damping seat 23 and push rod 21 connected to it forward to reset.

[0024] The wire fastening pin seat 29 is a seat component located at the rear end of the inner cavity of the outer shell 1. The outer peripheral wall of the wire fastening pin seat 29 is assembled to the rear end of the inner cavity of the outer shell 1 by a limiting block, which restricts the axial movement range of the wire fastening pin seat 29. The top and bottom of the outer shell 1 and the wire fastening pin seat 29 are respectively provided with pin holes. The wire fastening pin seat 29 and the outer shell 1 are inserted and fixed to each other by a pin shaft passing through the corresponding pin hole, so that it remains fixed in the outer shell 1.

[0025] When in operation or use, the damping rebound device of the present invention is in the initial unpressed state, the spring 28 is in the compressed energy storage state, the hook part at the front end of the fastening tail 27 is engaged in the slot in the inner cavity of the damping ring seat 25, so that the damping ring seat 25 and the guide damping seat 23 and push rod 21 connected thereto are kept in the retracted position, and the rubber head 22 at the end of the push rod 21 is retracted into the inner cavity of the outer shell 1, at which time the cabinet door is in the closed state.

[0026] When the user needs to open the cabinet door, a pressing force is applied towards the cabinet door. The cabinet door pushes the rubber head 22, and the rubber head 22 transmits the force to the push rod 21. The push rod 21 moves backward along the inner cavity of the outer shell 1. The push rod 21 is fixedly connected to the guide damping seat 23 through the external thread at its rear end. Therefore, the guide damping seat 23 moves backward synchronously. The rear end of the guide damping seat 23 is sleeved on the front end of the damping ring seat 25. When the guide damping seat 23 moves backward, it will push the damping ring seat 25 to move backward together. During this process, the limiting strip 251 on the outer peripheral wall of the damping ring seat 25 slides backward along the limiting groove 11 on the inner wall of the outer shell 1, thereby ensuring that the damping ring seat 25 can only move in a straight line along the axial direction and will not deflect or jam.

[0027] As the damping ring seat 25 moves backward, the axial distance between the middle stepped surface of the damping ring seat 25 and the fixed fastening pin seat 29 is shortened. The spring 28, which is sleeved on the outside of the fastening pin 27, is further compressed, increasing the stored energy. At the same time, the damping rubber ring 26 is squeezed between the guide damping seat 23 and the damping ring seat 25, and its outer peripheral wall is tightly pressed against the inner wall of the outer shell 1, generating a continuous elastic friction force. The conical outer wall of the guide damping ring 24 also contacts the inner wall of the outer shell 1, forming an auxiliary frictional resistance. During this stage, the pressing force applied by the user needs to overcome the elastic force of the spring 28 and the frictional resistance generated by the damping component. Therefore, the pressing feel is stable and has a damping feel.

[0028] When the damping ring seat 25 moves backward to the preset release position, the hook part at the front end of the fastening pin 27 completely disengages from the slot in the inner cavity of the damping ring seat 25, and the locking constraint between the fastening pin 27 and the damping ring seat 25 is released. At this time, the compressed spring 28 loses the restriction of the damping ring seat 25 and immediately releases the stored elastic potential energy. The spring 28 pushes the damping ring seat 25 forward. Since the damping ring seat 25, the guide damping seat 23, and the push rod 21 are linked in sequence, the thrust of the spring 28 will drive the damping ring seat 25, the guide damping seat 23, and the push rod 21 to move forward and accelerate as a whole.

[0029] However, in the initial stage of the forward reset movement, sliding friction occurs between the conical outer peripheral wall of the guide damping ring 24 and the inner wall of the outer shell 1. Due to the self-tightening effect of the conical surface, the guide damping ring 24 will slightly expand radially when moving forward, increasing the contact pressure between it and the inner wall of the outer shell 1, thereby generating a large frictional damping force. At the same time, the outer peripheral wall of the damping ring 26 also maintains elastic contact with the inner wall of the outer shell 1, continuously providing stable viscous frictional resistance during the movement. The combined effect of these two damping forces effectively suppresses the rapid release of the spring 28, keeping the forward movement speed of the damping ring seat 25 and the push rod 21 within a smooth and uniform range, preventing instantaneous popping.

[0030] Under the action of damping, the push rod 21 slowly extends forward to the front end of the outer casing 1, and the rubber head 22 always keeps in contact with the cabinet door, gradually pushing the cabinet door open with a gentle force. When the push rod 21 extends to the maximum stroke position, the limit strip 251 contacts the front stop surface of the limit groove 11, restricting the damping ring seat 25 from moving further forward. At the same time, the push rod 21 stops moving, and the cabinet door is fully opened and stabilized in the open position, without swinging or vibrating back and forth due to inertia.

[0031] When the user closes the cabinet door again, the door pushes the push rod 21 to retract, repeating the process of compressing the spring 28 until the hook of the fastening pin 27 is engaged in the groove of the damping ring seat 25 again. The rebounder returns to the initial energy storage state, the cabinet door remains closed, and it waits for the next press to open.

[0032] As can be seen from the above working process, the present invention utilizes the dual frictional damping generated by the guide damping ring 24 and the damping rubber ring 26 during the release phase of the spring 28 to effectively buffer the pop-out speed of the push rod 21, fundamentally solving the technical problem of the door panel popping out quickly and repeatedly bouncing due to the instantaneous release of the spring 28 in the traditional rebound device, while ensuring the smoothness and reliability of the pressing and opening process.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A damped rebound device, comprising a housing (1), characterized in that: The inner cavity of the outer shell (1) is slidably provided with a drive assembly (2); The drive assembly (2) includes a push rod (21), a guide damping seat (23), a guide damping ring (24), a damping ring seat (25), a damping rubber ring (26), a wire fastening pin (27), a spring (28), and a wire fastening pin seat (29). One end of the push rod (21) is threadedly connected to one end of the guide damping seat (23), the guide damping ring (24) is movably sleeved on the surface of the guide damping seat (23), and the other end of the guide damping seat (23) is movably sleeved on one end of the damping ring seat (25). The damping rubber ring (26) is disposed between the guide damping seat (23) and the damping ring seat (25), and the outer peripheral wall of the damping rubber ring (26) abuts against the inner wall of the outer shell (1); The fastening pin (27) is movably attached to the inner cavity of the damping ring seat (25), and one end of the fastening pin (27) is rotatably connected to the fastening pin seat (29). The spring (28) is disposed between the buckle pin seat (29) and the damping ring seat (25).

2. The damping rebound device according to claim 1, characterized in that: The guide damping ring (24) is a conical ring structure, and its outer wall abuts against the inner wall of the outer shell (1).

3. The damping rebound device according to claim 2, characterized in that: One end of the damping rubber ring (26) abuts against the middle step surface of the damping ring seat (25), and the other end of the damping rubber ring (26) abuts against the end face of the guide damping ring (24).

4. The damping rebound device according to claim 1, characterized in that: The push rod (21) is slidably sleeved on the front end of the inner cavity of the outer shell (1), and the outer peripheral wall of the damping ring seat (25) is slidably attached to the inner wall of the outer shell (1).

5. A damped rebound device according to claim 4, characterized in that: The inner wall of the outer shell (1) is symmetrically provided with limiting grooves (11), and the outer peripheral wall of the damping ring seat (25) is symmetrically provided with limiting strips (251), and the limiting strips (251) are slidably embedded in the corresponding limiting grooves (11).

6. A damped rebound device according to claim 1, characterized in that: One end of the spring (28) abuts against the middle step surface of the damping ring seat (25), and the other end of the spring (28) abuts against the end face of the buckle tail pin seat (29).

7. A damped rebound device according to claim 1, characterized in that: The outer peripheral wall of the buckle pin seat (29) is assembled to the rear end of the inner cavity of the outer shell (1) by a limiting block. The outer shell (1) and the buckle pin seat (29) are respectively provided with pin holes, and the two are fixed by passing through the pin holes with a pin shaft.

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