Gas-liquid combined type shock absorber

Abstract

The utility model discloses a gas-liquid combined type shock absorber, and belongs to the technical field of vehicle shock absorbers, the outer side of a shock absorber body is movably sleeved with a damping spring, one end of the shock absorber body is slidably connected with a piston rod, one end of the piston rod is fixedly connected with a movable seat, and the top of the movable seat is fixedly connected with a first connecting ring assembly; according to the gas-liquid combined type shock absorber, through movable blocks arranged on the first connecting ring assembly and the second connecting ring assembly, ring holes can be detached and combined, and after the gas-liquid combined type shock absorber is connected with a vehicle, the gas-liquid combined type shock absorber can be detached and assembled. According to the gas-liquid combined type shock absorber, independent disassembly of the gas-liquid combined type shock absorber can be completed without disassembling a vehicle connecting assembly, the later maintenance convenience is improved, through the arranged adjusting plate, the top hole and the top rod, the elastic strength of the shock absorbing spring can be adjusted, damage to external threads on the surface of the shock absorber body can be avoided, and the supporting stability of the adjusting plate is improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle shock absorber technology, and more specifically, to a gas-liquid composite shock absorber. Background Technology

[0002] Gas-liquid composite shock absorbers are devices that combine the properties of gas and liquid to achieve efficient shock absorption. Their core principle is to provide elastic support through the compressibility of gas and to consume vibration energy through the damping properties of liquid. They have advantages such as fast response speed, wide adjustable damping range, and high durability.

[0003] Currently, commonly used gas-liquid composite shock absorbers, although their shock absorber springs have adjustable strength, lack stability. Moreover, once the shock absorber is installed on the vehicle, it is inconvenient to separate it later. For example, the gas-liquid composite shock absorber disclosed in CN119778413A includes a damper, a first energy storage unit, and a second energy storage unit. The upper chamber of the piston is connected to the first energy storage unit, and the lower chamber of the piston is connected to the second energy storage unit. The damper is installed inside the oil space formed by the oil space between the upper chamber of the piston and the first energy storage unit, the oil space of the upper chamber of the piston, and the oil space of the first energy storage unit.

[0004] As can be seen from the above-mentioned publicly available solutions, after the shock absorber is connected to the vehicle at both ends, it is necessary to disassemble the components connected to the shock absorber on the vehicle before it can be removed during later maintenance and repair. This is cumbersome and time-consuming, reducing the convenience of later maintenance of the shock absorber. In addition, when the shock absorber spring of commonly used shock absorbers can adjust the spring strength, one end of it needs to be connected to the thread on the surface of the shock absorber. After being compressed, it may cause damage to the thread on the surface of the shock absorber, which may cause the support of the shock absorber spring adjustment end to slip, reducing its support stability. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a gas-liquid composite shock absorber. This gas-liquid composite shock absorber, through the movable blocks set in the first connecting ring assembly and the second connecting ring assembly, allows the ring holes to be disassembled and reassembled. After the gas-liquid composite shock absorber is connected to the vehicle, the gas-liquid composite shock absorber can be disassembled without disassembling the vehicle connection assembly, improving the convenience of later maintenance. Furthermore, through the set adjustment plate, top hole, and top rod, not only can the elastic strength of the shock absorber spring be adjusted, but damage to the external threads on the surface of the shock absorber body can also be avoided, improving the support stability of the adjustment plate.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A gas-hydraulic composite shock absorber includes a shock absorber body, a shock absorber spring movably sleeved on the outer side of the shock absorber body, a piston rod slidably connected to one end of the shock absorber body, a movable seat fixedly connected to one end of the piston rod, a first connecting ring assembly fixedly connected to the top of the movable seat, an adjusting plate threadedly connected to the surface of the shock absorber body, a fixed seat fixedly connected to one end of the shock absorber body, a support assembly provided on the surface of the fixed seat, and a second connecting ring assembly fixedly connected to the bottom of the fixed seat. This gas-hydraulic composite shock absorber, through the movable blocks provided by the first and second connecting ring assemblies, allows the ring holes to be disassembled and reassembled. After the gas-hydraulic composite shock absorber is connected to the vehicle, it can be disassembled independently without disassembling the vehicle connection assembly, improving the convenience of later maintenance. Furthermore, the adjusting plate, top hole, and top rod not only adjust the spring force of the shock absorber spring but also prevent damage to the external threads on the surface of the shock absorber body, improving the support stability of the adjusting plate.

[0008] Furthermore, the first connecting ring assembly and the second connecting ring assembly have the same structure. The first connecting ring assembly includes a fixing block. One end of the fixing block has an insertion groove. The side of the insertion groove is fixedly connected to a pin hole. The inner wall of the pin hole is movably connected to a positioning pin. A semi-circular hole is provided in the middle of the fixing block. The fixing block can quickly fix the installation position of the movable block through the positioning pin.

[0009] Furthermore, a movable block is movably connected to the surface of the positioning pin, and an insert block is fixedly connected to one end of the movable block. The surface of the insert block is slidably connected to the inner wall of the insertion groove. A connection hole is opened on the side of the insert block, and one end of the insert block abuts against the surface of the movable seat. The insert block can not only support the movable block, but also make the movable block detachable.

[0010] Furthermore, the support assembly includes a top rod, and the surface of the fixed seat has a top hole. The inner wall of the top hole is threadedly connected to the surface of the top rod. One end of the top rod abuts against the bottom of the adjusting plate, which can limit the downward position of the adjusting plate, thereby reducing the downward compressive strength of the external threads on the surface of the shock absorber body.

[0011] Furthermore, the adjusting plate has a screw hole in the middle, the surface of the shock absorber body has an external thread, the outer contour of the adjusting plate is polygonal, and the adjusting plate can move under the action of the thread, thereby adjusting the elastic strength of the shock absorber spring.

[0012] Furthermore, one end of the movable seat is provided with a stepped limiting boss, the surface of which is movably connected to the inner wall of the shock-absorbing spring. The limiting boss can prevent the position of one end of the shock-absorbing spring from becoming skewed.

[0013] Furthermore, the movable block and the fixed block are surrounded by an annular hole, which is formed by the enclosure and can be disassembled and reassembled, thereby facilitating disassembly from the vehicle connection component.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] (1) This solution uses movable blocks set in the first connecting ring assembly and the second connecting ring assembly to allow the ring holes to be disassembled and reassembled. After the gas-liquid composite shock absorber is connected to the vehicle, the gas-liquid composite shock absorber can be disassembled separately without disassembling the vehicle connection assembly, which improves the convenience of later maintenance.

[0016] (2) This solution, through the setting of adjustment plate, top hole and top rod, can not only adjust the elastic strength of shock absorber spring, but also avoid damage to the external thread on the surface of shock absorber body, and improve the support stability of adjustment plate. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the first connecting ring assembly and the movable seat installation structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the installation structure of the second connecting ring assembly and the shock absorber body of this utility model;

[0020] Figure 4 for Figure 2 A schematic diagram of the fixed block structure;

[0021] Figure 5 for Figure 2 A schematic diagram of the active block structure.

[0022] Explanation of the labels in the diagram:

[0023] 1. Shock absorber body; 11. Piston rod; 12. Shock absorber spring; 2. Movable seat; 21. Limiting boss; 3. First connecting ring assembly; 31. Fixing block; 32. Insertion groove; 33. Pin hole; 34. Positioning pin; 35. Movable block; 36. Insertion block; 37. Connecting hole; 38. Ring hole; 4. Adjusting plate; 5. Fixing seat; 51. Top hole; 52. Top rod; 6. Second connecting ring assembly. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] Please see Figure 1-5 The gas-liquid composite shock absorber includes a shock absorber body 1, which is a gas-liquid composite shock absorber. It also includes an energy storage component, a piston, and a damper. The composition and working principle of this shock absorber body are well-known to those skilled in the art and will not be described in detail here. A shock absorber spring 12 is movably sleeved on the outer side of the shock absorber body 1. A piston rod 11 is slidably connected to one end of the shock absorber body 1. A movable seat 2 is fixedly connected to one end of the piston rod 11. A first connecting ring assembly 3 is fixedly connected to the top of the movable seat 2. The first connecting ring assembly 3 and the second connecting ring assembly 6 have the same structure. The first connecting ring assembly 3 includes a fixing block 31. One end of the fixing block 31 has an insertion groove 32. A pin hole 33 is fixedly connected to the side of the insertion groove 32. A positioning pin 34 is movably connected to the inner wall of the pin hole 33. A semi-circular hole is provided in the middle of the fixing block 31. The fixing block 31 can be quickly fixed to the movable block 35 via the positioning pin 34. The movable block 35 and the fixed block 31 are arranged in an up-down combination, or they can be arranged in a left-right combination, so that they are not affected by vehicle components during disassembly and assembly. The first connecting ring assembly 3 is connected to the vehicle connecting assembly to fix the installation position of one end of the shock absorber body 1. The surface of the shock absorber body 1 is threadedly connected to the adjusting plate 4. One end of the shock absorber body 1 is fixedly connected to the fixed seat 5. The surface of the fixed seat 5 is provided with a support assembly, which includes a top rod 52. The surface of the fixed seat 5 has a top hole 51. The inner wall of the top hole 51 is threadedly connected to the surface of the top rod 52. One end of the top rod 52 abuts against the bottom of the adjusting plate 4, which can limit the downward position of the adjusting plate 4, thereby reducing the downward compressive strength of the external thread on the surface of the shock absorber body 1. The bottom of the fixed seat 5 is fixedly connected to the second connecting ring assembly 6, which is connected to the vehicle connecting assembly to fix the installation position of the other end of the shock absorber body 1.

[0027] The surface of the positioning pin 34 is movably connected to a movable block 35. One end of the movable block 35 is fixedly connected to an insert block 36. The surface of the insert block 36 is slidably connected to the inner wall of the insertion groove 32. A connecting hole 37 is opened on the side of the insert block 36. One end of the insert block 36 abuts against the surface of the movable seat 2. The insert block 36 can not only support the movable block 35, but also make the movable block 35 detachable. A screw hole is opened in the middle of the adjusting plate 4. The surface of the shock absorber body 1 is opened with an external thread. The outer contour of the adjusting plate 4 is polygonal, which makes it easy to rotate the adjusting plate 4 with a wrench. The adjusting plate 4 can move under the action of the thread, thereby adjusting the elastic strength of the shock absorber spring 12.

[0028] One end of the movable seat 2 is provided with a stepped limiting boss 21. The surface of the limiting boss 21 is movably connected to the inner wall of the shock absorber spring 12. The limiting boss 21 can prevent the position of one end of the shock absorber spring 12 from being skewed. The movable block 35 and the fixed block 31 surround an annular hole 38. The annular hole 38 is formed by the surrounding, and can be disassembled and assembled, thus facilitating the disassembly of the vehicle connection component.

[0029] When the spring strength of the shock absorber 12 needs to be adjusted, the adjusting plate 4 can be rotated counterclockwise with a wrench. The adjusting plate 4 moves upward along the shock absorber body 1, compressing the shock absorber 12 and increasing the spring strength. After the spring strength adjustment is completed, the push rod 52 can be rotated clockwise manually. The push rod 52 moves clockwise so that one end touches the bottom of the adjusting plate 4, thus preventing the adjusting plate 4 from moving downward when the shock absorber 12 is compressed downward, which would damage the external threads on the surface of the shock absorber body 1. This improves the support stability of the adjusting plate 4. When the shock absorber body 1 needs to be disassembled separately, the positioning pin 34 can be removed manually, and then the movable block 35 can be removed, so that the annular hole 38 is opened, thereby detaching both ends of the shock absorber body 1 from the vehicle components, improving the convenience of later maintenance.

[0030] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A gas-liquid composite shock absorber, comprising a shock absorber body (1), wherein a shock absorber spring (12) is movably sleeved on the outer side of the shock absorber body (1), and a piston rod (11) is slidably connected to one end of the shock absorber body (1), characterized in that: One end of the piston rod (11) is fixedly connected with a movable seat (2), the top of the movable seat (2) is fixedly connected with a first connecting ring assembly (3), the surface of the shock absorber body (1) is threadedly connected with an adjusting plate (4), one end of the shock absorber body (1) is fixedly connected with a fixed seat (5), the surface of the fixed seat (5) is provided with a supporting assembly, and the bottom of the fixed seat (5) is fixedly connected with a second connecting ring assembly (6).

2. The gas-liquid composite shock absorber according to claim 1, characterized by: The first connecting ring assembly (3) and the second connecting ring assembly (6) are the same in structure, the first connecting ring assembly (3) comprises a fixed block (31), one end of the fixed block (31) is provided with a plug-in slot (32), the side surface of the plug-in slot (32) is fixedly connected with a pin hole (33), and the inner wall of the pin hole (33) is movably connected with a positioning pin (34).

3. The gas-liquid composite shock absorber according to claim 2, characterized by: The surface of the positioning pin (34) is movably connected with a movable block (35), one end of the movable block (35) is fixedly connected with a plug-in block (36), the surface of the plug-in block (36) is slidably connected with the inner wall of the plug-in slot (32), and the side surface of the plug-in block (36) is provided with a connecting hole (37).

4. The gas-liquid composite shock absorber according to claim 1, characterized by: The supporting assembly comprises a jacking rod (52), the surface of the fixed seat (5) is provided with a top hole (51), and the inner wall of the top hole (51) is threadedly connected with the surface of the jacking rod (52).

5. The gas-liquid composite shock absorber according to claim 1, characterized by: The middle position of the adjusting plate (4) is provided with a threaded hole, the surface of the shock absorber body (1) is provided with an external thread, and the outer contour shape of the adjusting plate (4) is polygonal.

6. The gas-liquid composite shock absorber according to claim 1, characterized by: One end of the movable seat (2) is provided with a stepped limiting boss (21), and the surface of the limiting boss (21) is movably connected with the inner wall of the damping spring (12).

7. The gas-liquid composite shock absorber according to claim 3, characterized by: The movable block (35) and the fixed block (31) enclose a ring hole (38).

Images