Shock absorber with double-spring structure

Abstract

The utility model discloses a shock absorber with a double-spring structure, which relates to the technical field of double-spring shock absorbers and comprises a piston cylinder, a piston rod is arranged at one end of the piston cylinder, a connecting block is fixed at one end of the piston cylinder far away from the piston rod, and the connecting block is arranged at the bottom of the piston cylinder. When a piston barrel and a piston rod stretch out and draw back, a second spring is compressed to drive an outer sliding block to descend, a first spring follows the compression, a fixing ring barrel on the inner wall of the outer sliding block slides on the outer wall of the piston barrel, and when the fixing ring barrel slides, dust particles can be filtered through an inner rubber ring on the inner wall, so that the dust particles cannot affect sliding of the outer sliding block; the smoothness of the first spring and the second spring during stretching is increased, and the damping effect of the damper is ensured; the outer rubber rings are arranged at the two ends, located on the outer side of the fixing ring cylinder, of the inner rubber ring, dust can be filtered by the inner rubber ring in advance, the service life of the inner rubber ring is prolonged, and the dust filtering effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of double-spring shock absorbers, in particular to a double-spring structure shock absorber. Background Art

[0002] Compared with single spring shock absorber, double spring shock absorber has some obvious advantages, which are mainly reflected in the following aspects:

[0003] Better comfort: Dual spring shock absorbers can better reduce the bumps and shocks of the vehicle by using two springs of different hardness. This design not only improves the riding comfort, but also helps to reduce the physical damage to the driver and passengers;

[0004] Better handling: Since the dual spring shock absorber can more effectively reduce the bumps and vibrations during driving, it can improve the stability and handling of the vehicle. For the driver, this means higher operating accuracy and better control performance;

[0005] Stronger support and shock absorption performance: Dual spring shock absorbers are usually designed to be stronger and more durable, and can provide stronger support and shock absorption performance, which makes it particularly suitable for heavy motorcycles or vehicles that need to withstand greater impact and load;

[0006] Wider adaptability: Dual spring shock absorbers can adapt to a wider range of driving conditions and road conditions, whether it is a flat highway or a rugged mountain road, it can provide stable and effective shock absorption effect;

[0007] Longer service life: Since the dual spring shock absorber has stronger support and shock absorption performance, it can usually withstand longer use and more severe environmental conditions, so it has a longer service life.

[0008] In the process of implementing the solution, the inventors found that the following problems existed in the prior art and have not been well solved: the spring located on the outer wall of the piston cylinder is connected to a cylinder sliding on the outer wall of the piston cylinder, and the spring at the piston rod position is also connected to the cylinder. The cylinder will slide on the outer wall of the piston cylinder in large quantities and frequently during shock absorption. When the vehicle is driving, a large amount of dust particles will be knocked up and attached to the outer wall of the piston cylinder, causing resistance and setbacks when the cylinder slides on the outer wall of the piston cylinder, affecting the shock absorption effect of the double springs. Utility Model Content

[0009] The main purpose of the utility model is to provide a double-spring structure shock absorber, which can effectively solve the problems in the background technology.

[0010] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0011] A double-spring structure shock absorber comprises a piston cylinder, one end of which is provided with a piston rod, a connecting block is fixed to the end of the piston cylinder away from the piston rod, connectors are provided at the ends of the piston rod and the connecting block away from each other, an outer sliding block is sleeved on the end of the outer wall of the piston cylinder close to the piston rod, two annular grooves are cut on the outer walls of the connecting block and the outer sliding block, a spring 1 is sleeved on the outer wall of the piston cylinder located between the connecting block and the outer sliding block, a spring 2 is sleeved on the outer wall of the piston cylinder located at the end of the outer sliding block away from the connecting block, a fixing ring cylinder is fixed to the inner wall of the outer sliding block, an inner rubber ring is bonded to the inner wall of the fixing ring cylinder, and outer rubber rings are provided on both ends of the inner rubber ring.

[0012] Preferably, the outer rubber rings are respectively located outside the fixed ring tube, and the inner rubber ring and the outer rubber ring are integrated.

[0013] Preferably, the inner walls of the inner rubber ring and the outer rubber ring are in contact with the outer wall of the piston cylinder respectively.

[0014] Preferably, the spring 1 and the spring 2 are respectively in contact with the ends of the outer slider that are close to each other, the end of the spring 2 that is away from the outer slider is respectively in contact with the adjacent connector, and the end of the spring 1 that is away from the outer slider is respectively in contact with the adjacent connector.

[0015] Preferably, a limiting ring is fixed on the outer wall of the piston cylinder located at one end of the outer sliding block away from the connecting block, and the outer diameter of the limiting ring is larger than the outer diameter of the fixed ring cylinder.

[0016] Preferably, two ends of the telescopic rubber sleeve are respectively sleeved on the outer walls of the connecting block and the outer sliding block, and the outer walls of the telescopic rubber sleeve located at the annular groove are connected to clamps.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1. The connecting block is set at the bottom of the piston cylinder. When the piston cylinder and the piston rod are extended and retracted, the second spring is compressed to drive the outer slider down, and the first spring is compressed accordingly. The fixed ring cylinder on the inner wall of the outer slider slides on the outer wall of the piston cylinder. When the fixed ring cylinder slides, the dust particles can be filtered through the inner rubber ring on the inner wall, so that the dust particles will not affect the sliding of the outer slider, increase the smoothness of the first and second springs when they are extended and retracted, and ensure the shock absorption effect of the shock absorber;

[0019] The inner rubber ring is located at both ends of the outer side of the fixed ring tube and is provided with outer rubber rings to filter the dust in advance by the inner rubber ring, which not only increases the service life of the inner rubber ring, but also increases the effect of filtering out dust.

[0020] 2. The connecting block and the outer sliding block are located in the annular groove and the telescopic rubber sleeve connected by the clamp can provide dust protection for the spring together to prevent stones in a large amount of dust from causing impact damage to the outer wall of the piston cylinder after being hit. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the double-spring shock absorber of the utility model;

[0022] Figure 2 This is a structural schematic diagram of the connecting block and the outer sliding block of the double-spring structure shock absorber of the utility model;

[0023] Figure 3 It is a cross-sectional structural schematic diagram of the fixed ring cylinder, the inner rubber ring and the outer rubber ring of the double spring structure shock absorber of the utility model;

[0024] Figure 4 It is a schematic diagram of the enlarged structure of point A of the double-spring structure shock absorber of the utility model.

[0025] In the figure: 1. Piston cylinder; 2. Piston rod; 3. Connecting block; 4. Outer sliding block; 5. Connector; 6. Limiting ring; 7. Annular groove; 8. Telescopic rubber sleeve; 9. Fixed ring cylinder; 10. Inner rubber ring; 11. Outer rubber ring; 13. Spring 2. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0027] like Figure 1-4 As shown, a double-spring structure shock absorber comprises a piston cylinder 1, a piston rod 2 is arranged at one end of the piston cylinder 1, a connecting block 3 is fixed to the end of the piston cylinder 1 away from the piston rod 2, a connector 5 is arranged at the ends of the piston rod 2 and the connecting block 3 away from each other, an outer sliding block 4 is sleeved on the end of the outer wall of the piston cylinder 1 close to the piston rod 2, two annular grooves 7 are cut on the outer walls of the connecting block 3 and the outer sliding block 4, a spring 1 is sleeved on the outer wall of the piston cylinder 1 located between the connecting block 3 and the outer sliding block 4, a spring 2 13 is sleeved on the outer wall of the piston cylinder 1 located at the end of the outer sliding block 4 away from the connecting block 3, a fixing ring cylinder 9 is fixed to the inner wall of the outer sliding block 4, an inner rubber ring 10 is bonded to the inner wall of the fixing ring cylinder 9, and outer rubber rings 11 are arranged on both ends of the inner rubber ring 10.

[0028] Specifically, the outer rubber rings 11 are respectively located outside the fixed ring tube 9 , and the inner rubber ring 10 and the outer rubber ring 11 are integrally formed.

[0029] Specifically, the inner walls of the inner rubber ring 10 and the outer rubber ring 11 are in contact with the outer wall of the piston cylinder 1 respectively.

[0030] Specifically, spring 1 and spring 2 13 are respectively in contact with the ends of the outer slider 4 that are close to each other, and the ends of spring 2 13 that are away from the outer slider 4 are respectively in contact with the adjacent connector 5, and the ends of spring 1 that are away from the outer slider 4 are respectively in contact with the adjacent connector 5.

[0031] Specifically, a limiting ring 6 is fixed to the outer wall of the piston cylinder 1 at one end of the outer slider 4 away from the connecting block 3 , and the outer diameter of the limiting ring 6 is larger than the outer diameter of the fixed ring cylinder 9 to prevent the outer slider 4 from sliding out of the outer wall of the piston cylinder 1 .

[0032] Specifically, the two ends of the telescopic rubber sleeve 8 are respectively sleeved on the outer walls of the connecting block 3 and the outer sliding block 4, and the outer walls of the telescopic rubber sleeve 8 located at the annular groove 7 are connected with clamps, which facilitate the installation and positioning of the telescopic rubber sleeve 8 on the outer wall of the annular groove 7. The clamp is a conventional technical means and is a disclosed prior art, so it will not be described in detail in this application.

[0033] Working principle: the connecting block 3 is arranged at the bottom of the piston cylinder 1. When the piston cylinder 1 and the piston rod 2 are extended and retracted, the spring 2 13 is compressed to drive the outer slider 4 to descend and the spring 1 is compressed. The fixed ring cylinder 9 on the inner wall of the outer slider 4 slides on the outer wall of the piston cylinder 1. When the fixed ring cylinder 9 slides, the dust particles can be filtered through the inner rubber ring 10 on the inner wall, so that the dust particles will not affect the sliding of the outer slider 4, increase the smoothness of the spring 1 and the spring 2 13 when they are extended and retracted, and ensure the shock absorption effect of the shock absorber. The inner rubber ring 10 is located at both ends of the outer side of the fixed ring cylinder 9. The outer rubber ring 11 can be provided to the inner rubber ring 10 in advance to filter the dust, which not only increases the service life of the inner rubber ring 10, but also increases the effect of filtering out dust. The connecting block 3 and the outer slider 4 are located at the annular groove 7 and the telescopic rubber sleeve 8 connected by the clamp can provide dust protection for the spring together to prevent stones in a large amount of dust from causing impact damage to the outer wall of the piston cylinder 1 after being hit.

[0034] The circuits, electronic components and control modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by the utility model does not involve improvements to software and methods.

[0035] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A double spring structure shock absorber, comprising a piston cylinder (1), characterized in that: A piston rod (2) is provided at one end of the piston cylinder (1), a connecting block (3) is fixed to the end of the piston cylinder (1) away from the piston rod (2), and a connector (5) is provided at the ends of the piston rod (2) and the connecting block (3) away from each other. An outer sliding block (4) is sleeved on the end of the outer wall of the piston cylinder (1) close to the piston rod (2), and two annular grooves (7) are cut on the outer walls of the connecting block (3) and the outer sliding block (4). A spring 1 is sleeved on the outer wall of the piston cylinder (1) located between the connecting block (3) and the outer sliding block (4), and a spring 2 (13) is sleeved on the outer wall of the piston cylinder (1) located at the end of the outer sliding block (4) away from the connecting block (3). A fixed ring cylinder (9) is fixed to the inner wall of the outer sliding block (4), an inner rubber ring (10) is bonded to the inner wall of the fixed ring cylinder (9), and outer rubber rings (11) are provided at both ends of the inner rubber ring (10).

2. The double spring structure shock absorber according to claim 1, characterized in that: The outer rubber rings (11) are respectively located outside the fixed ring cylinder (9), and the inner rubber ring (10) and the outer rubber ring (11) are integrally formed.

3. The double spring structure shock absorber according to claim 1, characterized in that: The inner walls of the inner rubber ring (10) and the outer rubber ring (11) are in contact with the outer wall of the piston cylinder (1) respectively.

4. The double spring structure shock absorber according to claim 1, characterized in that: The spring 1 and the spring 2 (13) are respectively in contact with the ends of the outer slider (4) that are close to each other, the ends of the spring 2 (13) that are away from the outer slider (4) are respectively in contact with the adjacent connectors (5), and the ends of the spring 1 that are away from the outer slider (4) are respectively in contact with the adjacent connectors (5).

5. The double spring structure shock absorber according to claim 1, characterized in that: A limiting ring (6) is fixed on the outer wall of the piston cylinder (1) at one end of the outer sliding block (4) away from the connecting block (3), and the outer diameter of the limiting ring (6) is greater than the outer diameter of the fixing ring cylinder (9).

6. The double spring structure shock absorber according to claim 1, characterized in that: The two ends of the telescopic rubber sleeve (8) are respectively sleeved on the outer walls of the connecting block (3) and the outer sliding block (4), and the outer wall of the telescopic rubber sleeve (8) located at the annular groove (7) is connected to a clamp.

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