Shock absorber working cylinder

Abstract

The utility model discloses a working cylinder of a shock absorber, and relates to the technical field of shock absorbers. The shock absorber working cylinder comprises a local outer cylinder, a guide seat is fixedly mounted on the local outer cylinder, an inner cylinder is arranged in the local outer cylinder and fixedly mounted on the guide seat, and at least two groups of flat surfaces are integrally formed on the outer surface of the inner cylinder. At least two groups of oil passing holes communicated with the interior of the inner cylinder are formed in each group of flat surfaces in a penetrating manner, at least two groups of mounting holes communicated with the interior of the inner cylinder are further formed in each group of flat surfaces in a penetrating manner, two groups of plugging pieces are arranged on each group of flat surfaces in an attached manner, and two groups of bolts are arranged on each group of plugging pieces. According to the shock absorber working cylinder, the number of the blocked oil passing holes is controlled only by increasing or decreasing the number of the blocking pieces on the shock absorber working cylinder, and then the flowing effect of oil can be adjusted when different shock absorption effect requirements are met so that the shock absorber working cylinder can adapt to different driving requirements and road conditions.

Description

Technical Field

[0001] This utility model relates to the field of shock absorber technology, and in particular to a shock absorber working cylinder. Background Technology

[0002] Shock absorbers are used to suppress the oscillations caused by the rebound of the spring after absorbing shock and the impact from the road surface. They are widely used in automobiles to accelerate the attenuation of vibrations in the chassis and body, thereby improving the ride smoothness of the car. When driving over uneven roads, although the shock-absorbing spring can filter out the vibrations from the road surface, the spring itself will still have reciprocating motion. Shock absorbers are used to suppress this spring bounce.

[0003] The working cylinder of the shock absorber is the core component of the shock absorber. It is filled with oil. When subjected to external force, the piston will reciprocate in the working cylinder, changing the flow state of the oil. Through the friction between the oil and the hole wall and between liquid molecules, the mechanical energy of the vibration is converted into heat energy, thereby achieving the effect of vibration reduction.

[0004] However, some existing shock absorbers have simple structures and fixed oil valves that cannot be adjusted. The shock absorbers rely on the flow of liquid to provide damping, but the damping force is fixed and cannot be adjusted according to driving conditions. Therefore, we propose a shock absorber working cylinder. Utility Model Content

[0005] The purpose of this invention is to provide a shock absorber working cylinder that can solve the problem that some existing shock absorbers cannot adjust the damping force.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a shock absorber working cylinder, comprising:

[0007] A partial outer cylinder is fixedly mounted with a guide seat. An inner cylinder is set inside the partial outer cylinder and fixedly mounted on the guide seat. The outer surface of the inner cylinder is integrally formed with at least two sets of flat surfaces. Each set of flat surfaces has at least two sets of oil passage holes that communicate with the interior of the inner cylinder. Each set of flat surfaces also has at least two sets of mounting holes that communicate with the interior of the inner cylinder. Each set of flat surfaces is fitted with two sets of sealing plates. Each set of sealing plates is equipped with two sets of bolts. Each set of bolts passes through the corresponding sealing plate and is threaded into the corresponding mounting hole.

[0008] Preferably, a piston rod is movably inserted through the guide seat, and a piston is fixedly installed at one end of the piston rod inside the inner cylinder.

[0009] Preferably, the other end of the piston rod is fixedly mounted with a connector to the outside of the inner cylinder.

[0010] Preferably, the piston is in contact with the inner wall of the inner cylinder.

[0011] Preferably, an end cap is fixedly installed at one end of the inner cylinder.

[0012] Preferably, each set of bolts is flush with the inner wall of the inner cylinder.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The working cylinder of this shock absorber, through the cooperation of oil passage holes, mounting holes, sealing plates and bolts, can control the number of oil passage holes blocked by adding or removing sealing plates. In this way, the flow effect of the oil can be adjusted when different damping effects are required. This allows the working cylinder of the shock absorber to have low damping in the early stage of a damping stroke, which can drive comfortably on low-undulation roads, and high damping in the later stage, which can support the vehicle body when driving on high-undulation roads. This adapts to different driving needs and road conditions. It solves the problem that some existing shock absorbers have simple structures, fixed oil valves that cannot be adjusted, and that the damping force is fixed and cannot be adjusted according to driving conditions, which is why the damping force is fixed. This improves the comfort and smoothness of the shock absorber. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0015] Figure 1 This is a frontal perspective view of the present invention;

[0016] Figure 2 for Figure 1 Enlarged view of the structure at point A in the middle;

[0017] Figure 3 This is a frontal perspective sectional view of the present invention;

[0018] Figure 4 for Figure 3 Enlarged view of the structure at point B.

[0019] Reference numerals: 1. Partial outer cylinder; 2. Guide seat; 3. Inner cylinder; 4. Flat surface; 5. Oil passage hole; 6. Mounting hole; 7. Sealing plate; 8. Bolt; 9. Piston rod; 10. Piston; 11. Connecting piece; 12. End cap. Detailed Implementation

[0020] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0021] Please see Figure 1-4This utility model provides a technical solution: a shock absorber working cylinder, including a partial outer cylinder 1, a guide seat 2 fixedly installed on the partial outer cylinder 1, an inner cylinder 3 disposed inside the partial outer cylinder 1, the inner cylinder 3 fixedly installed on the guide seat 2, at least two sets of flat surfaces 4 integrally formed on the outer surface of the inner cylinder 3, each set of flat surfaces 4 having at least two sets of oil passage holes 5 penetrating through and communicating with the interior of the inner cylinder 3, each set of flat surfaces 4 also having at least two sets of mounting holes 6 penetrating through and communicating with the interior of the inner cylinder 3, each set of flat surfaces 4 having two sets of sealing plates 7 fitted together, each set of sealing plates 7 having two sets of bolts 8, each set of bolts 8 penetrating the corresponding sealing plate 7 and threadedly installed into the corresponding mounting hole 6. With the combined action of the oil passage hole 5, mounting hole 6, sealing plate 7, and bolt 8, the number of oil passage holes 5 can be controlled by adding or removing the sealing plate 7. This allows for adjustment of the oil flow effect when different damping requirements are met. As a result, the shock absorber working cylinder has low damping in the early stage of one damping stroke, enabling comfortable driving on low-lying roads, and high damping in the later stage, which can support the vehicle body when driving on high-lying roads. This adapts to different driving needs and road conditions, solving the problem that some existing shock absorbers have simple structures, fixed oil valves that cannot be adjusted, and rely on the flow of liquid to achieve damping, but the damping force is fixed and cannot be adjusted according to driving conditions. This improves the practicality of the shock absorber working cylinder.

[0022] Furthermore, a piston rod 9 is movably inserted through the guide seat 2. One end of the piston rod 9 is fixedly installed with a piston 10 inside the inner cylinder 3, and the other end of the piston rod 9 is fixedly installed with a connector 11 outside the inner cylinder 3. The piston 10 fits against the inner wall of the inner cylinder 3, and an end cap 12 is fixedly installed at one end of the inner cylinder 3. Each set of bolts 8 is flush with the inner wall of the inner cylinder 3.

[0023] Working principle: Adjustments are made according to the needs of different vehicles. When changing the required shock absorption effect, different sealing pieces 7 are installed on the flat surface 4 through the mounting holes 6 to block different numbers of oil passages 5. When the piston 10 moves, it changes the oil flow space, so that in one shock absorption stroke, the damping is small at the front, which can make it comfortable to drive on low undulation roads, and the damping is large at the rear, which can support the body when driving on high undulation roads, so as to adapt to different driving needs and prevent the body from tilting forward and nose-diving during rapid braking.

[0024] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A shock absorber working cylinder, characterized in that, include: A partial outer cylinder (1) is fixedly mounted with a guide seat (2). An inner cylinder (3) is provided inside the partial outer cylinder (1). The inner cylinder (3) is fixedly mounted on the guide seat (2). The outer surface of the inner cylinder (3) is integrally formed with at least two sets of flat surfaces (4). At least two sets of oil passage holes (5) communicating with the interior of the inner cylinder (3) are opened through each set of flat surfaces (4). At least two sets of mounting holes (6) communicating with the interior of the inner cylinder (3) are also opened through each set of flat surfaces (4). Two sets of sealing plates (7) are fitted on each set of flat surfaces (4). Two sets of bolts (8) are provided on each set of sealing plates (7). Each set of bolts (8) is threaded through the corresponding sealing plate (7) and installed on the corresponding mounting hole (6).

2. The shock absorber working cylinder according to claim 1, characterized in that: A piston rod (9) is movably inserted through the guide seat (2), and a piston (10) is fixedly installed at one end of the piston rod (9) inside the inner cylinder (3).

3. A shock absorber working cylinder according to claim 2, characterized in that: The other end of the piston rod (9) is fixedly installed with a connector (11) on the outside of the inner cylinder (3).

4. A shock absorber working cylinder according to claim 3, characterized in that: The piston (10) is in contact with the inner wall of the inner cylinder (3).

5. A shock absorber working cylinder according to claim 4, characterized in that: An end cap (12) is fixedly installed at one end of the inner cylinder (3).

6. A shock absorber working cylinder according to claim 5, characterized in that: Each set of bolts (8) is flush with the inner wall of the inner cylinder (3).

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