Buffering and supporting structure of shock absorber

Abstract

The utility model relates to a shock absorber buffering and supporting structure, which belongs to the technical field of shock absorbers, and comprises a shock absorber main body, an external supporting sleeve, an auxiliary buffering cylinder and an upper limiting plate, the shock absorber main body is provided with a piston rod, the piston rod is provided with a damping valve piston, and the shock absorber main body is provided with a first isolation piston. The piston rod and the shock absorber body are both fixedly provided with connectors, the two external supporting sleeves can be installed on the outer wall of the shock absorber body through bolts, and the external supporting sleeves are provided with side connecting plates. According to the shock absorber buffering and supporting structure, the shock absorber buffering and supporting structure is of an external type and can be matched with an existing shock absorber, the effect of improving the buffering and impact resisting capacity of the shock absorber can be achieved at low cost, the buffering and supporting structure can be disassembled and assembled according to needs, and the buffering and supporting structure can be rapidly maintained and replaced according to needs when damaged; compared with the prior art, an existing shock absorber needs to be reprocessed, and better applicability is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to shock absorber technical field, especially a shock absorber buffer support structure. BACKGROUND

[0002] Shock absorber, is used to restrain spring shock rebound when the shock and the impact from the road, is widely used in the car, for accelerating the attenuation of the frame and the body vibration, to improve the ride comfort of the car.

[0003] Through the retrieval, the existing patent with the public number CN202123371750.4 discloses a kind of buffer type automobile shock absorber, buffer body is arranged, unidirectional damping piece is installed in buffer body, make buffer piston directly under the force of buffer rod Slowly decelerate in buffer cavity and move down to realize buffering, simple structure, does not affect the installation and use of shock absorber, installs positioning plate on dust cover to realize further positioning and stabilization to buffer rod, ensure that buffer rod can be completely matched with piston rod up and down telescopic, ensure that buffer rod normally buffers shock absorber;And install brush ring on positioning plate, can effectively brush the dust adhered to buffer rod, avoid dust with buffer rod into buffer cavity and affect the friction of unidirectional damping piece.

[0004] The above technical scheme has the following defects, such buffer type automobile shock absorber is provided with external buffer rod for additional buffering and supporting of shock absorber, thereby further improving buffering and supporting capacity, but inconvenient to install at existing shock absorber in actual use process, needs to be additionally manufactured alone, therefore, a shock absorber buffering support structure is provided, which can be externally placed and can adapt to existing shock absorber, can realize the effect of improving the buffering and impact resistance of the shock absorber at low cost, and the buffering support structure can be disassembled according to needs, and can be quickly maintained and replaced according to needs when damaged.

[0005] Therefore, the present application improves and solves the above problems, and finally proposes a technical solution that is reasonable in design and can effectively improve the above defects.

[0006] The information disclosed in the background section of this document is intended only to enhance the understanding of the overall background of the present utility model, and should not be considered as acknowledging or implying in any form that this information constitutes prior art known to those skilled in the art. UTILITY MODEL CONTENT

[0007] The utility model provides a kind of shock absorber buffering support structure, solve the problem raised in the above background art, can be installed at existing shock absorber according to needs, to provide additional buffering and support, thereby improving the buffering support capacity of shock absorber, compared with prior art, with better applicability.

[0008] The utility model discloses a shock absorber buffer support structure, including shock absorber main part, external support sleeve, vice buffer cylinder, upper limit board, shock absorber main part is provided with piston rod, the piston rod is installed with damping valve piston, shock absorber main part is provided with one isolation piston, the piston rod and shock absorber main part all are fixedly installed with the connector, two external support sleeve can be installed on the outer wall of shock absorber main part through bolt, external support sleeve is installed with lateral connection board, lateral connection board is provided with two, vice buffer cylinder is slidably connected with vice piston rod, vice buffer cylinder is provided with two isolation piston, upper limit board is provided with two, two upper limit boards can be connected as disc structure through bolt, the top of vice piston rod is connected with upper limit board through screw, vice piston rod is fixedly connected with buffer spring.

[0009] On the basis of the above technical scheme, the utility model still can make following improvement.

[0010] Further, the shock absorber main part is divided into a working chamber and a first air chamber by the damping valve piston, the vice buffer cylinder is divided into a spring chamber and a second air chamber by the second isolation piston, and the first air chamber and the second air chamber can provide two-stage buffering through gas compressibility.

[0011] Further, the first air chamber and the second air chamber are communicated with sealing air valves, the air pressure in the first air chamber and the second air chamber can be adjusted through the sealing air valves, so that the buffering stiffness can be adjusted.

[0012] Further, the lateral connection board on the upper side is provided with a U-shaped groove, and the vice piston rod can be transmitted out of the U-shaped groove.

[0013] Further, the external support sleeve is uniformly provided with heat dissipation holes, and the external support sleeve is uniformly fixedly connected with heat dissipation fins, and the external support sleeve is made of aluminum alloy material, so that the heat dissipation effect of the shock absorber is prevented from being affected by the external support structure.

[0014] Further, the external support sleeve is provided with two, and the external support sleeve is provided with a mounting groove corresponding to the shock absorber main body, so that the two external support sleeves on the two sides can be assembled on the outer wall of the shock absorber main body.

[0015] Further, the upper limit board is provided with a limiting groove corresponding to the piston rod, and the limiting grooves on the two sides can be spliced into a limiting hole, the inner wall diameter of the limiting hole is matched with the diameter of the piston rod, and the diameter of the limiting hole is smaller than the diameter of the connector on the upper side.

[0016] Further, the top of the vice piston rod is a connecting block, the upper limit board is provided with a connecting groove corresponding to the connecting block, and the connecting block can be connected with the connecting groove through a screw, so that the upper limit board can be quickly connected with the upper limit board.

[0017] The utility model provides a shock absorber buffer support structure has the following advantages:

[0018] 1, both sides external support sleeve can be assembled in the outer wall of shock absorber main part through bolt splicing, both sides vice buffer cylinder can be loaded in the outer wall of both sides external support sleeve through screw, both sides upper limit board can be spliced in the outer wall of piston rod through bolt, the end of vice piston rod can be connected with upper limit board through screw, so that the assembly of outer buffer support structure can be completed, such assembly structure can be prefabricated according to existing shock absorber model, and direct assembly is carried out, and existing shock absorber does not need to be processed again.

[0019] 2, the outer wall of external support sleeve is uniformly provided with heat dissipation holes and is installed with heat dissipation fins, which prevents the external support sleeve from affecting the heat dissipation effect of the shock absorber main body.

[0020] 3, when the connecting head is pressed down, the damping valve piston of the piston rod slides in the working cavity, the hydraulic oil damping in the working cavity is responsible for the main energy dissipation, the first gas chamber provides secondary buffering through the gas compressibility, the vice piston rod can slide in the vice buffer cylinder, the buffer spring can be compressed in the spring cavity, the second gas chamber in the bottom can provide secondary buffering through the gas compressibility, and the air pressure in the shock absorber main body and the vice buffer cylinder can be adjusted through the sealing air valves on the two sides, so that the buffer stiffness of the shock absorber main body and the vice buffer cylinder is adjusted.

[0021] 4, such shock absorber buffer support structure is external, can adapt to the shock absorber buffer support structure of existing shock absorber, can realize the effect of improving the shock absorber buffering and impact resistance at low cost, and the buffer support structure can be disassembled as required, and can be quickly maintained and replaced as required when damage occurs, compared with the prior art, the existing shock absorber needs to be reprocessed, and has better applicability.

[0022] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, and the contents of the specification can be implemented, the following preferred embodiments of the utility model are described in detail below. The specific embodiment of the utility model is given in detail by the following embodiments and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0023] The drawings described herein are used to provide further understanding of the utility model, constitute a part of this application, and the illustrative embodiments of the utility model and the description thereof are used to explain the utility model, and do not constitute improper limitation on the utility model. In the drawings:

[0024] Figure 1 The structure diagram of a shock absorber buffer support structure provided by an embodiment of the utility model is shown in the figure.

[0025] Figure 2 A front view of a shock absorber buffer support structure according to an embodiment of the present application is provided.

[0026] Figure 3 A structure diagram of a side-placed connecting plate in a shock absorber buffer support structure according to an embodiment of the present application is provided.

[0027] Figure 4 A structure diagram of an externally-placed supporting sleeve in a shock absorber buffer support structure according to an embodiment of the present application is provided.

[0028] In the drawings, the components represented by the respective reference numerals are listed as follows:

[0029] 1, shock absorber main body; 2, piston rod; 3, damping valve piston; 4, No. 1 isolation piston; 5, connecting head; 6, working cavity; 7, No. 1 air chamber; 8, externally-placed supporting sleeve; 9, mounting groove; 10, side-placed connecting plate; 11, U-shaped groove; 12, heat dissipation hole; 13, heat dissipation fin; 14, auxiliary buffer cylinder; 15, auxiliary piston rod; 16, No. 2 isolation piston; 17, spring cavity; 18, No. 2 air chamber; 19, sealing air valve; 20, upper-placed limiting plate; 21, buffer spring. DETAILED DESCRIPTION

[0030] The following will be described in detail with reference to the accompanying drawings. Figures 1-4 The principles and features of the present application are described, and the examples are used to explain the present application, not to limit the scope of the present application. In the following paragraphs, the present application is described in more detail with reference to the accompanying drawings. The advantages and features of the present application will be more apparent from the following description and claims. It should be noted that the drawings are greatly simplified and use non-precise proportions, only to facilitate and clarify the purpose of assisting the description of the embodiments of the present application.

[0031] It should be noted that when a component is referred to as "fixed to" another component, it can be directly on the other component or there can be a middle component. When a component is referred to as "connected to" another component, it can be directly connected to the other component or there can be a middle component. When a component is referred to as "disposed on" another component, it can be directly disposed on the other component or there can be a middle component. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] like Figures 1-4 As shown, a shock absorber buffer support structure includes a shock absorber body 1, an external support sleeve 8, a secondary buffer cylinder 14, and an upper limiting plate 20. The shock absorber body 1 is provided with a piston rod 2, and a damping valve piston 3 is installed on the piston rod 2. The shock absorber body 1 is provided with a first isolation piston 4. Both the piston rod 2 and the shock absorber body 1 are fixedly installed with connectors 5. Two external support sleeves 8 can be bolted to the outer wall of the shock absorber body 1. The external support sleeves 8 are provided with side connecting plates 10. There are two side connecting plates 10. The secondary buffer cylinder 14 is slidably connected to a secondary piston rod 15. The secondary buffer cylinder 14 is provided with a second isolation piston 16. There are two upper limiting plates 20. The two upper limiting plates 20 can be bolted together to form a disc structure. The top end of the secondary piston rod 15 is connected to the upper limiting plate 20 by screws. A buffer spring 21 is fixedly connected to the secondary piston rod 15.

[0034] Preferably, the shock absorber body 1 is divided into a working chamber 6 and a first air chamber 7 by a damping valve piston 3, and the auxiliary buffer cylinder 14 is divided into a spring chamber 17 and a second air chamber 18 by a second isolation piston 16. The first air chamber 7 and the second air chamber 18 can provide secondary buffering through gas compressibility.

[0035] Preferably, both the first air chamber 7 and the second air chamber 18 are connected to a sealing air valve 19. The air pressure in the first air chamber 7 and the second air chamber 18 can be adjusted through the sealing air valve 19, thereby adjusting the buffer stiffness.

[0036] Preferably, the upper side connecting plate 10 has a U-shaped groove 11, from which the auxiliary piston rod 15 can be transmitted.

[0037] Preferably, the external support sleeve 8 has heat dissipation holes 12 evenly spaced, and heat dissipation fins 13 are evenly fixedly connected to the external support sleeve 8. The external support sleeve 8 is made of aluminum alloy, thereby preventing the external support structure from affecting the heat dissipation effect of the shock absorber.

[0038] Preferably, there are two external support sleeves 8, and each of the two external support sleeves 8 has a mounting groove 9 corresponding to the shock absorber body 1, so that the two external support sleeves 8 on both sides can be spliced ​​and assembled on the outer wall of the shock absorber body 1.

[0039] Preferably, the upper limiting plate 20 is provided with a limiting groove corresponding to the piston rod 2, and the limiting grooves on both sides can be spliced into a limiting hole, the inner wall diameter of the limiting hole is matched with the diameter of the piston rod 2, and the limiting hole diameter is smaller than the connecting head 5 on the upper side.

[0040] Preferably, the top end of the auxiliary piston rod 15 is a connecting block, and the upper limiting plate 20 is provided with a connecting groove corresponding to the connecting block, so that the upper limiting plate 20 can be quickly connected with the upper limiting plate 20 through screws.

[0041] The specific working principle and use method of the utility model are as follows: the two side external supporting sleeve 8 can be assembled on the outer wall of the shock absorber main body 1 through bolts, the two side auxiliary buffer cylinder 14 can be loaded on the outer wall of the two side external supporting sleeve 8 through screws, the two side upper limiting plate 20 can be spliced on the outer wall of the piston rod 2 through bolts, and the end of the auxiliary piston rod 15 can be connected with the upper limiting plate 20 through screws, so that the assembly of the external buffer supporting structure can be completed, the outer wall of the external supporting sleeve 8 is uniformly provided with heat dissipation holes 12 and is provided with heat dissipation fins 13, so that the influence of the external supporting sleeve 8 on the heat dissipation effect of the shock absorber main body 1 is prevented, when the connecting head 5 is pressed down, the damping valve piston 3 of the piston rod 2 slides in the working cavity 6, the hydraulic oil damping in the working cavity 6 is responsible for the main energy dissipation, the primary gas chamber 7 provides secondary buffering through gas compressibility, the upper limiting plate 20 can be pressed down when the connecting head 5 is pressed down, the auxiliary piston rod 15 can slide in the auxiliary buffer cylinder 14, the buffer spring 21 can be compressed in the spring cavity 17, the secondary gas chamber 18 in the bottom can provide secondary buffering through gas compressibility, and the air pressure in the shock absorber main body 1 and the auxiliary buffer cylinder 14 can be adjusted through the sealing gas valve 19 on both sides, so that the buffer stiffness of the shock absorber main body 1 and the auxiliary buffer cylinder 14 is adjusted.

[0042] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form; any ordinary technical personnel in the industry can implement the utility model according to the drawings and the above description; however, any equivalent changes, modifications and evolution of the above-mentioned technical content within the scope of the technical scheme of the utility model are equivalent embodiments of the utility model; meanwhile, any equivalent changes, modifications and evolution of the above-mentioned technical content within the scope of the technical scheme of the utility model are equivalent embodiments of the utility model.

Claims

1. A shock absorber buffer support structure, comprising a shock absorber main body (1), an external support sleeve (8), a secondary buffer cylinder (14), and an upper limiting plate (20), characterized in that: The shock absorber body (1) is provided with a piston rod (2), the piston rod (2) is installed with a damping valve piston (3), the shock absorber body (1) is provided with a first isolation piston (4), the piston rod (2) and the shock absorber body (1) are fixedly installed with a connector (5), two the external support sleeve (8) can be bolted on the outer wall of the shock absorber body (1), the external support sleeve (8) is installed with a side connecting plate (10), the side connecting plate (10) is provided with two, the auxiliary buffer cylinder (14) is slidably connected with a secondary piston rod (15), the auxiliary buffer cylinder (14) is provided with a second isolation piston (16), the upper limiting plate (20) is provided with two, two the upper limiting plate (20) can be bolted to a disc structure, the top end of the secondary piston rod (15) is connected with the upper limiting plate (20) by a screw, and the secondary piston rod (15) is fixedly connected with a buffer spring (21).

2. The shock absorber bump stop structure according to claim 1, wherein The shock absorber body (1) is divided into a working cavity (6) and a first air chamber (7) by the damping valve piston (3), and the auxiliary buffer cylinder (14) is divided into a spring cavity (17) and a second air chamber (18) by the second isolation piston (16).

3. The shock absorber bump stop structure of claim 2, wherein The first air chamber (7) and the second air chamber (18) are communicated with a sealed air valve (19).

4. The shock absorber bump stop structure of claim 1, wherein The side connecting plate (10) is provided with a U-shaped groove (11).

5. The shock absorber bump stop structure of claim 1 wherein, The external support sleeve (8) is uniformly provided with a heat dissipation hole (12), and the external support sleeve (8) is uniformly fixedly connected with a heat dissipation fin (13), and the external support sleeve (8) is made of aluminum alloy.

6. The shock absorber bump stop structure of claim 1 wherein, The external support sleeve (8) is provided with two, and the external support sleeve (8) is provided with a mounting groove (9) corresponding to the shock absorber body (1).

7. The shock absorber bump stop structure of claim 1 wherein, The upper limiting plate (20) is provided with a limiting groove corresponding to the piston rod (2), and the limiting grooves on both sides can be spliced into a limiting hole, the inner wall diameter of the limiting hole is matched with the diameter of the piston rod (2), and the limiting hole diameter is smaller than the upper connector (5).

8. The shock absorber bump stop structure of claim 1, wherein The top end of the secondary piston rod (15) is a connecting block, and the upper limiting plate (20) is provided with a connecting groove corresponding to the connecting block, and the connecting block can be connected with the connecting groove by a screw.

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