Shock absorption structure of automobile shock absorber

Abstract

The utility model discloses a shock absorption structure of an automobile shock absorber, which comprises a shock absorption cylinder body, the shock absorption cylinder body comprises a fixed section positioned at the bottom and a sliding section connected with the fixed section in a sliding manner, a top plate is arranged at the top end of the sliding section, and a base is arranged at the bottom end of the fixed section. A first damping spring is arranged between the lantern ring and the top plate, a second damping spring is arranged between the lantern ring and the bottom plate, magnet pieces are arranged on the opposite faces of the lantern ring and the base respectively, and the same poles of the two magnet pieces are oppositely arranged. The damping device is excellent in damping effect.

Description

Technical Field

[0001] This utility model relates to the field of automotive shock absorber technology, and in particular to a shock-absorbing structure for automotive shock absorbers. Background Technology

[0002] To rapidly dampen vibrations from the chassis and body, improving ride smoothness and comfort, automotive suspension systems are typically equipped with shock absorbers. Shock absorbers are wear-prone components during vehicle use; their performance directly impacts ride stability and the lifespan of other parts. Therefore, shock absorbers should be kept in good working order at all times. Different vehicle weights and road conditions require different levels of shock absorption. Current shock absorbers typically have only one main spring, limiting their damping effect. During compression and recovery, the spring causes noticeable bumps for passengers, affecting ride comfort. Summary of the Invention

[0003] The purpose of this utility model is to design a shock-absorbing structure for automobile shock absorbers to overcome the shortcomings of the above-mentioned technologies.

[0004] This utility model designs a shock-absorbing structure for an automotive shock absorber, which includes a shock-absorbing cylinder. The shock-absorbing cylinder includes a fixed section at the bottom and a sliding section slidably connected to the fixed section. The top of the sliding section is provided with a top plate, and the bottom of the fixed section is provided with a base. A ring is slidably sleeved on the outer surface of the fixed section. A first shock-absorbing spring is provided between the ring and the top plate, and a second shock-absorbing spring is provided between the ring and the base. Magnets are respectively provided on the opposite surfaces of the ring and the base, and the two magnets are arranged with the same pole facing each other.

[0005] The technical advantages of this invention are as follows: Structurally, a first damping spring and a second damping spring are connected in series via a collar. Compared to existing shock absorbers with only one main spring, this provides better damping strength and stability during vehicle operation, a smoother damping process, and increased vehicle comfort. Furthermore, magnets are provided on the opposing surfaces of the collar and the second damping spring. The like poles of the magnets repel each other, preventing the collar from contacting the second damping spring during its up-and-down sliding. This also increases the elasticity of the collar's up-and-down sliding, thereby enhancing the damping effect and preventing hard collisions. When the second damping spring malfunctions and its damping effect decreases, the repulsive action of the two magnets can replace the second damping spring for damping.

[0006] Further optimization involves the fixed section having several ball grooves spaced apart on its outer circumferential surface, each running in the same direction as the collar's sliding motion. Each ball groove contains a ball. The inner wall of the collar has ball tracks that match the shape of the balls to limit and guide their movement. The balls reduce the sliding friction of the collar, enhancing its sliding flexibility and reducing wear between the collar and the fixed section, thus extending the shock absorber's lifespan.

[0007] Preferably, the number of ball grooves is three, which are equally spaced on the outer surface circumference of the fixed section to form a three-point centered sliding shaft, ensuring that the sliding shaft remains in the center position when sliding.

[0008] Further optimization involves creating annular grooves on the surfaces of the collar and the base, with the magnet embedded within these grooves. This facilitates magnet fixation and improves space utilization.

[0009] Further optimization involves a detachable limiting ring at the top of the fixed section to prevent the collar from slipping off the fixed section.

[0010] Preferably, the limiting ring is connected to the top of the fixed section by a thread, so that the limiting ring can be detached and the implementation method is simple and easy to implement.

[0011] Preferably, a limiting mechanism is provided between the limiting ring and the fixed section. The limiting mechanism includes a radial through hole on the limiting ring, a limiting hole in the fixed section that is adapted to the radial through hole, and a bolt passing through the radial through hole and the limiting hole. This allows the limiting ring and the fixed section to be threaded together, and then the bolt limiting structure is added to strengthen the fixation and prevent the limiting ring from separating from the fixed section due to thread failure.

[0012] Preferably, the limiting ring has a rubber pad on the surface facing the collar to prevent the top of the collar from directly contacting the limiting ring and to prevent the collar and limiting ring from being damaged by impact. Attached Figure Description

[0013] Figure 1 This is an overall structural diagram of the present invention;

[0014] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0015] Figure 3 This is a structural diagram of the shock-absorbing cylinder in this utility model.

[0016] In the diagram: 1. Shock-absorbing cylinder; 1-1. Fixed section; 1-2. Sliding section; 2. Top plate; 3. Base; 4. Collar; 5. First shock-absorbing spring; 6. Second shock-absorbing spring; 7. Magnet component; 8. Ball groove; 9. Ball; 10. Annular groove; 11. Limiting ring; 12. Radial through hole; 13. Limiting hole; 14. Bolt. Detailed Implementation

[0017] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0018] In this embodiment, as Figure 1 As shown, it includes a shock absorber body 1, which includes a fixed section 1-1 at the bottom and a sliding section 1-2 slidably connected to the fixed section 1-1. The sliding section 1-2 can be slidably connected to the fixed section 1-1 via a hydraulic system or other mechanical transmission methods. A circular top plate 2 is fixed to the top of the sliding section 1-2, and a base 3 is fixed to the bottom of the fixed section 1-1. The base 3 has screw holes distributed circumferentially, and fasteners are installed in the screw holes. The shock absorber body 1 is installed on the vehicle. A collar 4 is fitted on the outer surface of the fixed section 1-1, and the collar 4 can slide up and down along the axial direction of the fixed section 1-1. Figure 2 As shown, a first damping spring 5 is provided between the collar 4 and the top plate 2. The first damping spring 5 is sleeved on the outside of the sliding section 1-2. One end of the first damping spring 5 abuts against the end face of the top plate 2, and the other end abuts against the top of the collar 4, so that the first damping spring 5 plays a damping role when the sliding section 1-2 slides.

[0019] A second damping spring 6 is provided between the collar 4 and the base 3. The second damping spring 6 is sleeved outside the fixed end. One end of the second damping spring 6 abuts against the bottom end of the collar 4 and the other end abuts against the top end of the base 3. Limiting grooves are opened on the surfaces that directly abut against the ends of the two damping springs, including the surfaces of the top plate 2, the base 3 and the collar 4. The ends of the damping springs are directly inserted into the limiting grooves to fix and limit the ends of the damping springs and prevent the damping springs from shifting.

[0020] The first damping spring 5 and the second damping spring 6 can be the same type of spring, or they can be two springs with different elastic coefficients. For example, if the materials are the same and the spring coil diameters are the same, or the wire diameters are different, the elastic coefficient is proportional to the wire diameter. Different damping springs can bear different degrees of damping effect, which greatly enhances the damping performance of the shock absorber.

[0021] Magnet components 7 are provided on the opposite surfaces of the collar 4 and the base 3. The two magnet components 7 are arranged opposite each other with the same pole. They are usually permanent magnets, which can maintain their magnetism for a long time, such as neodymium iron boron magnets.

[0022] The outer periphery of the fixed section 1-1 has several ball grooves 8. Each ball groove 8 extends along the sliding direction of the collar 4 and is evenly distributed in a circular array along the outer periphery of the fixed section 1-1. Each ball groove 8 is equipped with a ball 9. The bottom surface and inner wall of the ball groove 8 are concave to form a curved concave surface, so that the ball 9 can be installed in the ball groove 8 and will not fall out. The ball 9 can roll in the ball groove 8. The inner wall of the collar 4 is provided with a ball track that matches the shape of the ball 9 to limit and guide the movement of the ball 9, so that the collar 4 can slide up and down along the ball groove 8 in the fixed section 1-1. The ball 9 is a steel ball, which can effectively improve the sliding wear resistance.

[0023] It should be noted that the end of the ball groove 8 facing the limiting sleeve is open, and the opening is located at the top of the fixed section 1-1, so that the ball 9 can enter from the opening, which facilitates the loading and unloading of the ball 9.

[0024] In another embodiment, there are three ball grooves 8, which are equidistantly distributed on the outer circumference of the fixed section 1-1.

[0025] In another embodiment, annular grooves 10 are formed on the surfaces of the collar 4 and the base 3 facing each other, and the magnet 7 is embedded in the annular grooves 10.

[0026] In another embodiment, such as Figure 3 As shown, a limiting ring 11 is detachably provided at the top of the fixed section 1-1. The limiting ring 11 can not only prevent the collar 4 from falling off the fixed section 1-1, but also cover the opening of the ball groove 8 to prevent the ball 9 from falling off.

[0027] In another embodiment, the inner wall of the limiting ring 11 is provided with an internal thread, and the top outer surface of the fixed section 1-1 is provided with an external thread. Through the matching connection of the internal and external threads, the limiting ring 11 and the fixed section 1-1 are threadedly connected. The threaded connection method is not only simple in structure and easy to implement, but also easy to operate. It also does not require additional connecting parts, which greatly reduces the space occupation rate and optimizes the structure of the entire shock absorber.

[0028] In another embodiment, a limiting mechanism is provided between the limiting ring 11 and the fixed segment 1-1 to further fix the limiting ring 11. The limiting mechanism includes a radial through hole 12 on the limiting ring 11 and a limiting hole 13 on the outer surface of the fixed segment 1-1 that communicates with and is adapted to the radial through hole 12. Both the radial through hole 12 and the limiting hole 13 are provided with internal threads. After a bolt 14 passes through the radial through hole 12 and the limiting hole 13 and is adapted, the limiting ring 11 is fixed to the top outer periphery of the fixed segment 1-1, thereby reinforcing and fixing the limiting ring 11 to the fixed segment 1-1.

[0029] In another embodiment, a rubber pad is provided on the surface of the limiting ring 11 facing the collar 4. The rubber pad can be a rubber ring with a certain thickness, which is directly sleeved on the fixing section 1-1 and fixed to the limiting ring 11. Alternatively, it can be a small circular rubber pad, which is distributed in a ring array on the bottom surface of the limiting ring 11 by bonding or embedding.

[0030] In another embodiment, the rubber pad is directly and movably fitted onto the fixed section 1-1 as a rubber ring, so that the rubber pad can move freely. When the collar 4 contacts the limiting ring 11, the rubber ring is always spaced between the collar 4 and the limiting ring 11, and the friction between the rubber ring and the fixed section 1-1 and the limiting ring 11 will not cause damage.

[0031] This utility model is not limited to the above-described preferred embodiments. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made in their shape or structure, any technical solution that is the same as or similar to this application falls within the protection scope of this utility model.

Claims

1. A shock absorber structure for automobiles, comprising a shock absorber cylinder (1), the shock absorber cylinder (1) comprising a fixed section (1-1) at the bottom and a sliding section (1-2) slidably connected to the fixed section (1-1), the sliding section (1-2) having a top plate (2) at its top end, and the fixed section (1-1) having a base (3) at its bottom end, characterized in that, A ring (4) is slidably sleeved on the outer surface of the fixed section (1-1). A first shock-absorbing spring (5) is provided between the ring (4) and the top plate (2). A second shock-absorbing spring (6) is provided between the ring (4) and the base (3). Magnets (7) are provided on the opposite surfaces of the ring (4) and the base (3). The two magnets (7) are arranged opposite each other with the same pole.

2. The automotive shock absorber damping structure according to claim 1, characterized in that, The outer circumferential surface of the fixed section (1-1) is provided with several ball grooves (8) that run in the same direction as the sliding direction of the collar (4). Each ball groove (8) is equipped with a ball (9). The inner wall of the collar (4) is provided with a ball track that matches the shape of the ball (9) to limit and guide the movement of the ball (9).

3. The automotive shock absorber damping structure according to claim 2, characterized in that, The number of ball grooves (8) is three, which are equally spaced on the outer circumference of the fixed section (1-1).

4. The automotive shock absorber damping structure according to claim 1, characterized in that, The collar (4) and the base (3) have annular grooves (10) on their opposite surfaces, and the magnet (7) is embedded in the annular grooves (10).

5. The automotive shock absorber damping structure according to claim 1, characterized in that, A limiting ring (11) is detachably provided at the top of the fixed section (1-1).

6. The automotive shock absorber damping structure according to claim 5, characterized in that, The limiting ring (11) is connected to the top of the fixed section (1-1) by a thread.

7. The automotive shock absorber damping structure according to claim 6, characterized in that, A limiting mechanism is provided between the limiting ring (11) and the fixed section (1-1). The limiting mechanism includes a radial through hole (12) located on the limiting ring (11), a limiting hole (13) opened in the fixed section (1-1 and adapted to the radial through hole (12), and a bolt (14) passing through the radial through hole (12) and the limiting hole (13).

8. The automotive shock absorber damping structure according to claim 7, characterized in that, The limiting ring (11) has a rubber pad on the surface facing the collar (4).

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