Rubber damping washer

Abstract

The utility model discloses a rubber damping gasket, belongs to the technical field of rubber pad structures, and provides a rubber damping gasket capable of keeping self position precision in the assembling process. The rubber damping gasket comprises a limiting conical part, the upper end of the limiting conical part is large, the lower end of the limiting conical part is small, the upper end of the limiting conical part is provided with a rotation stopping cylinder part and a pressure-bearing cover body, and the rotation stopping cylinder part extends upwards; the edge of the pressure-bearing cover body extends downwards, and a spring matching groove is formed between the inner wall of the pressure-bearing cover body and the outer side face of the limiting conical part and is suitable for being matched with the end of a spring of the shock absorber. The protruding rotation stopping structure is arranged on the gasket, so that the gasket is effectively prevented from rotating relative to the end cover of the shock absorber due to torsion of the spring in the installation process, and the assembly precision is improved; the end cover clamping groove is formed in the protruding outer side face of the gasket to be clamped with the end cover of the shock absorber, pre-positioning is carried out before other parts are assembled on the shock absorber, and the assembling efficiency can be effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of rubber pad structures, and in particular to a rubber shock-absorbing gasket. Background Art

[0002] A rubber gasket structure is required in the automobile shock absorber to prevent the spring from making hard contact with the metal end cap, which accelerates wear and generates noise. The existing shock-absorbing gasket is fixed by compression, so the spring may twist during assembly, causing rotation or movement, which affects the position accuracy and assembly efficiency. Summary of the invention

[0003] The purpose of the present application is to provide a rubber shock-absorbing gasket that can maintain its own position accuracy during the assembly process.

[0004] In order to achieve the above purpose, the present application provides a rubber shock-absorbing gasket: it includes a limiting cone portion, the upper end of the limiting cone portion is large and the lower end is small, the upper end of the limiting cone portion has a rotation-stop cylinder portion and a pressure-bearing cover body, the rotation-stop cylinder portion extends upward and is suitable for being embedded in the end cover of the shock absorber, the edge of the pressure-bearing cover body extends downward, and a spring fitting groove is formed between the inner wall of the pressure-bearing cover body and the outer side surface of the limiting cone portion, which is suitable for fitting with the spring end of the shock absorber, and the limiting cone portion is surrounded by the spring of the shock absorber, thereby constraining each other.

[0005] Preferably, the limiting cone portion includes an embedded vertebral body, the lower end of the embedded vertebral body has a convergence ring body, the inner wall of the convergence ring body is provided with an oil storage groove, which is suitable for storing more lubricating oil between the convergence ring body and the telescopic rod of the shock absorber, so that the telescopic rod can move relatively more smoothly.

[0006] Preferably, the anti-rotation cylinder portion comprises an embedded cylinder body, the outer side surface of the embedded cylinder body has ribs, and the length extension direction of the ribs is parallel to the axis of the embedded cylinder body, so as to facilitate the plug-in operation.

[0007] As a preferred embodiment, there are several ribs on the outer side of the embedded cylinder, and the ribs are equidistantly arranged around the axis of the embedded cylinder. Slots are formed between adjacent ribs, which engage with the protruding strip structure on the inner wall of the shock absorber end cover, thereby effectively limiting the rotation of the rubber gasket under force.

[0008] Preferably, the lower edge of the pressure-bearing cover body has a dust-proof flange, the diameter of which is larger than the diameter of the pressure-bearing cover body, and is used to rest on the edge of the shock absorber end cover to prevent dust from entering the end cover.

[0009] Preferably, an end cover slot is provided on the outer side of the pressure-bearing cover body, and the dust-proof flange has a uniform thickness and is flush with the inner wall of the end cover slot, making it easier to see whether the end cover slot is engaged in place.

[0010] As a preferred embodiment, the limiting cone portion, the anti-rotation cylinder portion, the pressure-bearing cover body and the dust-proof flange are an integrated structure made of rubber material, which can produce a higher buffering effect by utilizing its own soft elasticity.

[0011] As a preferred embodiment, the axes of the limiting cone, the anti-rotation cylinder, the pressure-bearing cover and the dust-proof flange are all collinear, and the entire rubber shock-absorbing pad is a rotating body with uniform material, which has lower directional requirements during installation and is conducive to improving assembly efficiency.

[0012] Compared with the prior art, the beneficial effects of this application are:

[0013] (1) By providing the gasket with a raised anti-rotation structure, the gasket is effectively prevented from rotating relative to the shock absorber end cover due to the torsion of the spring during the installation process, thereby improving the assembly accuracy;

[0014] (2) By providing an end cover slot on the outer side of the gasket protrusion to engage with the end cover of the shock absorber, pre-positioning can be performed before assembling other components to the shock absorber, which can effectively improve the assembly efficiency; on the other hand, the concave limiting cone can help the shock absorber spring slide into the fitting groove, further improving the assembly efficiency and matching stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the first view of the three-dimensional structure of the rubber shock-absorbing gasket.

[0016] Figure 2 This is the second view of the three-dimensional structure of the rubber shock-absorbing gasket.

[0017] Figure 3 This is a first cross-sectional view of the three-dimensional structure of the rubber shock-absorbing gasket.

[0018] Figure 4 This is a second cross-sectional view of the three-dimensional structure of the rubber shock-absorbing gasket.

[0019] Figure 5 This is a planar full-section view of the rubber shock-absorbing gasket.

[0020] In the figure: 1. limiting cone; 101. embedded vertebral body; 102. converging ring body; 103. oil storage tank; 2. anti-rotation cylinder; 201. embedded cylinder; 202. rib plate; 203. slot; 3. pressure cover; 301. spring fitting groove; 302. end cover slot; 4. dustproof flange. DETAILED DESCRIPTION

[0021] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0022] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present application.

[0023] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0024] The terms "including" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0025] like Figure 1-5 The rubber shock-absorbing gasket shown includes a limiting cone portion 1, which is an inverted cone, that is, the upper end is large and the lower end is small. The limiting cone portion 1 is hollow, and the upper and lower ends are connected. The inner wall is also conical. After the shock-absorbing gasket is installed, the limiting cone portion 1 will be surrounded by the spring of the shock absorber. The main part of the limiting cone portion 1 is an embedded vertebral body 101, and the lower end of the embedded vertebral body 101 has a convergence ring body 102. The convergence ring body 102 is the part with the smallest diameter of the limiting cone portion 1, and a step groove is formed between the upper end surface of the convergence ring body 102 and the inner wall of the embedded vertebral body 101, which is used to fit with the raised structure at the bottom of the shock absorber end cover. The inner wall of the convergence ring body 102 is provided with an oil storage groove 103 for storing lubricating oil, which is suitable for storing more lubricating oil between the convergence ring body 102 and the telescopic rod of the shock absorber, so that the telescopic action of the shock absorber can remain smooth for a long time.

[0026] The upper end of the limiting cone 1 is provided with a stop cylinder 2 and a pressure-bearing cover 3, wherein the stop cylinder 2 extends upward, and the specific structure of the stop cylinder 2 includes an embedded cylinder 201, and the outer side surface of the embedded cylinder 201 has ribs 202, and the length extension direction of the ribs 202 is parallel to the axis of the embedded cylinder 201, and there are several ribs 202 on the outer side surface of the embedded cylinder 201, and these ribs 202 are arranged equidistantly around the axis of the embedded cylinder 201, and slots 203 are formed between adjacent ribs 202, which are just engaged with the strip structure of the inner wall of the shock absorber end cover, so that the entire shock-absorbing gasket will not rotate relative to the reserved installation position of the shock absorber.

[0027] The edge of the pressure-bearing cover body 3 extends downward, that is, it bends downward from the horizontal to form a cover shape. A spring fitting groove 301 is formed between the inner wall of the pressure-bearing cover body 3 and the outer side surface of the limiting cone 1, which can just fit with the spring end of the shock absorber. An end cover slot 302 is provided on the outer side surface of the pressure-bearing cover body 3, which can be engaged with the block structure raised on the inner wall of the shock absorber end cover. The lower end edge of the pressure-bearing cover body 3 has a dustproof flange 4. The diameter of the dustproof flange 4 is larger than the diameter of the pressure-bearing cover body 3, and can be easily covered on the edge of the shock absorber end cover to prevent dust from entering the shock absorber end cover. The thickness of the dustproof flange 4 is uniform. Generally, the upper end surface of the dustproof flange 4 will be flush with the inner wall of the end cover slot 302. In this way, when the dustproof flange 4 is squeezed, the end cover slot 302 can be easily separated from the block inside the shock absorber end cover, making it convenient to disassemble the rubber shock-absorbing gasket.

[0028] The limiting cone 1, the anti-rotation cylinder 2, the pressure-bearing cover 3 and the dust-proof flange 4 are an integrated structure, which is formed by rubber material at one time. The axes of the limiting cone 1, the anti-rotation cylinder 2, the pressure-bearing cover 3 and the dust-proof flange 4 are all collinear, and the entire rubber shock-absorbing gasket is a rotating body. In this way, during installation, because there is no directionality, the assembly is faster and the matching accuracy is higher.

[0029] Installation method: first buckle the shock-absorbing gasket on the bottom of the shock absorber end cover, use the end cover slot 302 to cooperate with the shock absorber end cover to achieve pre-limitation, then pass the telescopic rod of the shock absorber damper through the convergence ring body 102, and the end of the coil spring outside the telescopic rod will automatically cooperate with the spring matching groove 301, thereby pressing the pressure-bearing cover body 3 into the end cover of the shock absorber to complete the installation of the rubber shock-absorbing gasket.

[0030] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. A rubber shock-absorbing washer, characterized in that: The limiting cone (1) comprises a larger upper end and a smaller lower end, the upper end of the limiting cone (1) comprises a rotation-stopping cylinder (2) and a pressure-bearing cover (3), the rotation-stopping cylinder (2) extends upward and is suitable for being engaged with the end cover of the shock absorber, the edge of the pressure-bearing cover (3) extends downward, a spring engaging groove (301) is formed between the inner wall of the pressure-bearing cover (3) and the outer side surface of the limiting cone (1), and is suitable for being engaged with the spring end of the shock absorber, and the limiting cone (1) is surrounded by the spring of the shock absorber.

2. The rubber shock-absorbing gasket according to claim 1, characterized in that: The limiting cone (1) comprises an embedded cone (101), the lower end of the embedded cone (101) is provided with a convergence ring (102), and the inner wall of the convergence ring (102) is provided with an oil storage groove (103) suitable for storing more lubricating oil between the convergence ring (102) and the telescopic rod of the shock absorber.

3. The rubber shock-absorbing gasket according to claim 2, characterized in that: The anti-rotation cylinder portion (2) comprises an embedded cylinder (201), the outer side surface of the embedded cylinder (201) has a rib (202), and the length extension direction of the rib (202) is parallel to the axis of the embedded cylinder (201).

4. The rubber shock-absorbing gasket according to claim 3, characterized in that: There are a plurality of ribs (202) on the outer side of the embedded cylinder (201), and the plurality of ribs (202) are arranged equidistantly around the axis of the embedded cylinder (201), and slots (203) are formed between adjacent ribs (202).

5. The rubber shock-absorbing gasket according to claim 4, characterized in that: The lower end edge of the pressure-bearing cover body (3) is provided with a dust-proof flange (4), and the diameter of the dust-proof flange (4) is greater than the diameter of the pressure-bearing cover body (3).

6. The rubber shock-absorbing gasket according to claim 5, characterized in that: An end cover slot (302) is provided on the outer side surface of the pressure-bearing cover body (3), and the dust-proof flange (4) has a uniform thickness and is flush with the inner wall of the end cover slot (302).

7. The rubber shock-absorbing washer according to any one of claims 1 to 6, characterized in that: The limiting cone portion (1), the anti-rotation cylinder portion (2), the pressure-bearing cover body (3) and the dust-proof flange (4) are an integrated structure and are made of rubber material.

8. The rubber shock-absorbing washer according to claim 7, characterized in that: The axes of the limiting cone (1), the anti-rotation cylinder (2), the pressure-bearing cover (3) and the dust-proof flange (4) are all collinear.

Images