Shock absorber

Abstract

The shock absorber comprises a piston cylinder, a piston rod is arranged at one end of the piston cylinder, an upper connecting block and a lower connecting block are fixedly connected to the ends, away from each other, of the piston cylinder and the piston rod respectively, the same protective shell is arranged on the outer side of the upper connecting block and the outer side of the lower connecting block, and the protective shell is made of thermoplastic elastomers. The upper inner wall and the lower inner wall of the protective shell are each fixedly provided with a set of positioning blocks, the protective shell is made of a thermoplastic elastomer material and can synchronously stretch and contract along with the shock absorber, and the surface hardness of the protective shell resists stone impact and acid and alkali corrosion and prevents mud and sewage from corroding the piston barrel, the piston rod and the shock absorption spring. Heat generated during work of the shock absorber can be exhausted, heat emission is accelerated when the protective shell stretches out and draws back, the shock absorption performance is prevented from being affected by high temperature, the problem that a traditional exposed shock absorber is prone to being impacted and corroded is effectively solved, dents, scratches and damage to a sealing structure are reduced, and the service life is prolonged.

Description

Technical Field

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

[0002] A shock absorber is a damping element in a car's chassis system. Inside the shock absorber, a piston is fixedly mounted on a piston rod. The piston rod and piston assembly reciprocate within the shock absorber's cylinder, thereby maintaining a stable damping force. Its main function is to attenuate the vibrations generated during car operation, thereby improving the car's lifespan, enhancing the smoothness and comfort of the ride, and improving driving safety and operational stability.

[0003] However, shock absorbers are constantly under compression and tension during operation, making them vulnerable parts in the car's use. Their working condition not only directly affects their own service life but also has a significant impact on the durability of other car body components.

[0004] Traditional automotive shock absorbers mostly employ an exposed design, which presents significant drawbacks during vehicle operation. On one hand, mud, sewage, and other impurities from the road surface easily adhere to the shock absorber surface. Over time, these impurities gradually erode the metal components and sealing structure of the shock absorber. On the other hand, stones splashed during driving cause frequent impacts to the shock absorber, potentially resulting in dents, scratches, or even damage to the internal piston rod. This not only directly damages the shock absorber, reducing its damping effect and causing malfunctions such as abnormal noises and oil leaks, but also significantly shortens its lifespan, thereby accelerating the wear and tear on other related components of the vehicle body and affecting the overall driving safety and stability of the vehicle. Therefore, a new shock absorber is proposed to address these issues. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a shock absorber to solve the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A shock absorber includes a piston cylinder, a piston rod at one end of the piston cylinder, an upper connecting block and a lower connecting block fixedly connected to the opposite ends of the piston cylinder and piston rod, respectively, and a common protective shell provided on the outer sides of the upper and lower connecting blocks. The protective shell is made of thermoplastic elastomer, and a set of positioning blocks is fixedly installed on the upper and lower inner walls of the protective shell. Each set of positioning blocks consists of two blocks arranged symmetrically, and slots are provided on the opposite surfaces of each set of positioning blocks. A fixing component is provided between the two sets of positioning blocks, and a common shock-absorbing spring is fixedly connected between the upper and lower connecting blocks. The piston cylinder and piston rod are both located inside the shock-absorbing spring.

[0008] Preferably, the fixing component includes a set of fixing plates fixedly connected to the opposite sides of the upper connecting block and the lower connecting block, with two fixing plates in each set, and a set of limiting springs fixedly connected to the opposite sides of the two fixing plates, with two limiting springs in each set.

[0009] Preferably, each of the two sets of limiting springs has a long plate fixedly connected to one end of each set that is far apart from the other, and an insert plate is fixedly connected to the opposite sides of the two long plates. The two insert plates are respectively inserted into the slots opened in the two positioning blocks.

[0010] Preferably, a set of telescopic rods is fixedly connected to the opposite surfaces of the two fixed plates, with two telescopic rods in each set. The ends of the two sets of telescopic rods that are far apart from each other are fixedly connected to the opposite surfaces of the two long plates, and the two sets of telescopic rods are located in the two sets of limiting springs.

[0011] Preferably, handles are fixedly connected to the top sides of both long plates, and threaded holes and threaded grooves are respectively opened on the top sides of the two handles and the two fixed plates. Threaded posts are installed in the threaded holes, and the other end of the threaded posts is threaded into the threaded grooves that are aligned with the threaded holes.

[0012] Preferably, a set of connecting plates is fixedly connected to the opposite sides of both the upper connecting block and the lower connecting block, and a fixing block is fixedly connected to the opposite sides of both sets of connecting plates.

[0013] Preferably, the outer side of the protective shell has multiple heat dissipation holes, which are arranged in a circumferential array.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The protective shell is made of thermoplastic elastomer material, which can stretch and contract synchronously with the shock absorber. Its surface hardness can resist the impact of stones and is resistant to acid and alkali corrosion, preventing mud and sewage from corroding the piston cylinder, piston rod and shock absorber spring. Multiple heat dissipation holes on the outside of the protective shell are distributed in a circumferential array, which can dissipate the heat generated by the shock absorber during operation. The heat dissipation is accelerated when the protective shell expands and contracts, preventing the shock absorption performance from being affected by high temperature. It effectively solves the problem of traditional exposed shock absorbers being susceptible to impact and corrosion, reduces dents, scratches and damage to the sealing structure, and extends service life.

[0016] 2. By cooperating with the fixing plate, limit spring, long plate, insert plate, positioning block, slot, handle, and threaded post in the fixing assembly, when installing the protective shell, pulling the handle causes the long plate to compress the limit spring. After the insert plate aligns with the slot, the limit spring resets and drives the insert plate to insert into the slot. The threaded post fixes the handle and the fixing plate, and the telescopic rod is located inside the limit spring, ensuring that the long plate moves smoothly, thereby achieving rapid fixing of the protective shell. Attached Figure Description

[0017] Figure 1This is a schematic diagram of some parts of the piston cylinder structure of this utility model;

[0018] Figure 2 This is a three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 3 This is a cross-sectional view of the structure of this utility model;

[0020] Figure 4 This is a schematic diagram of some parts of the structural positioning block of this utility model.

[0021] In the diagram: 1. Piston cylinder; 2. Piston rod; 3. Upper connecting block; 4. Lower connecting block; 5. Shock-absorbing spring; 6. Connecting plate; 7. Fixing block; 8. Protective shell; 9. Positioning block; 10. Slot; 11. Fixing plate; 12. Limiting spring; 13. Long plate; 14. Insert plate; 15. Telescopic rod; 16. Handle; 17. Threaded post; 18. Heat dissipation hole. Detailed Implementation

[0022] 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.

[0023] Reference Figure 1-4A shock absorber includes a piston cylinder 1, with a piston rod 2 at one end of the piston cylinder 1. An upper connecting block 3 and a lower connecting block 4 are fixedly connected to the ends of the piston cylinder 1 and piston rod 2 that are far apart from each other. A common protective shell 8 is provided on the outer sides of the upper connecting block 3 and the lower connecting block 4. The protective shell 8 is made of thermoplastic elastomer. A set of positioning blocks 9 is fixedly installed on both the upper and lower inner walls of the protective shell 8. Each set of positioning blocks 9 consists of two blocks arranged symmetrically. A slot 10 is provided on the opposite face of each set of positioning blocks 9. A fixing component is provided between the two sets of positioning blocks 9. The upper connecting block 3 and... A single shock-absorbing spring 5 is fixedly connected between the lower connecting blocks 4. Both the piston cylinder 1 and the piston rod 2 are located within the shock-absorbing spring 5. The fixing assembly includes a set of fixing plates 11 fixedly connected to the opposite sides of the upper connecting block 3 and the lower connecting block 4. Each set of fixing plates 11 consists of two plates. A set of limiting springs 12 is fixedly connected to the opposite sides of the two fixing plates 11. Each set of limiting springs 12 consists of two limiting springs. A long plate 13 is fixedly connected to the ends of the two sets of limiting springs 12 that are far apart from each other. Insert plates 14 are fixedly connected to the opposite sides of the two long plates 13. The two insert plates 14 are respectively inserted into... Within the slots 10 of both positioning blocks 9, a set of telescopic rods 15 are fixedly connected to the opposite faces of the two fixing plates 11. Each set of telescopic rods 15 consists of two rods. The ends of the two sets of telescopic rods 15 that are far apart from each other are fixedly connected to the opposite faces of the two long plates 13. The two sets of telescopic rods 15 are located within the two sets of limiting springs 12. When installing the protective shell 8, the protective shell 8 is fitted onto the outside of the upper connecting block 3 and the lower connecting block 4. Then, the two handles 16 at the top are pulled to bring the two long plates 13 closer together. When the two long plates 13 are close together, they can be compressed synchronously. Two sets of limiting springs 12 are used. When the slots 10 of the two positioning blocks 9 fixedly installed inside the protective shell 8 are aligned with the insert plates 14 fixedly connected to the back of the two long plates 13, the two handles 16 can be released. Under the elastic reset of the two sets of limiting springs 12, the insert plates 14 fixedly connected to one side of the two long plates 13 can be inserted into the two slots 10 respectively. After the upper insert plate 14 is inserted, the lower two insert plates 14 can be installed according to the above operation. After all the insert plates 14 are inserted, they can be limited and fixed by the multiple threaded posts 17.

[0024] Specifically, handles 16 are fixedly connected to the top sides of both long plates 13. Threaded holes and threaded grooves are respectively opened on the top sides of the two handles 16 and the two fixed plates 11. Threaded posts 17 are threaded into the threaded holes. The other end of the threaded post 17 is threaded into the threaded groove that is aligned with the threaded hole. By setting multiple threaded posts 17, after all the two sets of insert plates 14 are inserted, multiple threaded posts 17 are sequentially threaded into the threaded holes opened in the handles 16. Then, by continuing to rotate the threaded posts 17, the other end of the threaded post 17 can be threaded into the threaded groove that is aligned with the threaded hole, thereby realizing the fixed connection between the handles 16 and the fixed plates 11. This completes the installation of the protective shell 8.

[0025] Specifically, a set of connecting plates 6 are fixedly connected to the opposite sides of the upper connecting block 3 and the lower connecting block 4, and a fixing block 7 is fixedly connected to the opposite sides of the two sets of connecting plates 6. Multiple heat dissipation holes 18 are opened on the outer side of the protective shell 8. The multiple heat dissipation holes 18 are distributed in a circumferential array. The two sets of fixing blocks 7 are used to install the shock absorber at the designated connection position on the vehicle. The multiple heat dissipation holes 18 can dissipate the heat generated by the shock absorber. At the same time, the protective shell 8 can also accelerate the heat dissipation during the extension and retraction movement.

[0026] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power. The main controller can be any conventional known device, such as a computer, that can control the operation of the electrical components mentioned in the article.

[0027] In use: A protective shell 8 is installed, made of thermoplastic elastomer material. This material combines the elasticity of rubber and the plasticity of plastic, allowing it to stretch and contract synchronously with the shock absorber. Its surface hardness can withstand high-speed impacts from stones and it is resistant to acid and alkali corrosion. When installing the protective shell 8, first, fit it onto the outside of the upper connecting block 3 and the lower connecting block 4. Then, pull the two handles 16 at the top, causing the two long plates 13 to move closer together. Simultaneously, the two long plates 13 compress the two sets of limiting springs 12. When the slots 10 on the two positioning blocks 9 fixedly installed inside the protective shell 8 are fixedly connected to the back of the two long plates 13... When the insert plates 14 are aligned, release the two handles 16. Under the elastic reset action of the two sets of limit springs 12, the insert plates 14 fixedly connected to one side of the two long plates 13 will be driven to be inserted into the two slots 10 respectively. After the upper insert plate 14 is inserted, install the lower two insert plates 14 according to the above operation. After both sets of insert plates 14 are inserted, install the multiple threaded posts 17 in sequence into the threaded holes opened in the handles 16. Then continue to rotate the threaded posts 17 so that the other end of the threaded posts 17 is threaded into the threaded groove aligned with the threaded hole, thereby realizing the fixed connection between the handles 16 and the fixed plate 11. The installation of the protective shell 8 is thus completed.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A shock absorber, comprising a piston cylinder (1), characterized in that, One end of the piston cylinder (1) is provided with a piston rod (2). The piston cylinder (1) and the piston rod (2) are respectively fixedly connected to an upper connecting block (3) and a lower connecting block (4) at their ends. The upper connecting block (3) and the lower connecting block (4) are provided with the same protective shell (8) on their outer sides. The protective shell (8) is made of thermoplastic elastomer. A set of positioning blocks (9) are fixedly installed on the upper and lower inner walls of the protective shell (8). There are two positioning blocks (9) in each set and they are arranged symmetrically. The opposite surfaces of each set of positioning blocks (9) are provided with slots (10). A fixing component is provided between the two sets of positioning blocks (9). The upper connecting block (3) and the lower connecting block (4) are fixedly connected with the same shock-absorbing spring (5). The piston cylinder (1) and the piston rod (2) are both located inside the shock-absorbing spring (5).

2. A shock absorber according to claim 1, characterized in that, The fixing assembly includes a set of fixing plates (11) fixedly connected to the opposite sides of the upper connecting block (3) and the lower connecting block (4). There are two fixing plates (11) in each set. A set of limiting springs (12) is fixedly connected to the opposite sides of the two fixing plates (11). There are two limiting springs (12) in each set.

3. A shock absorber according to claim 2, characterized in that, Two sets of limiting springs (12) are fixedly connected to long plates (13) at their far ends. Two long plates (13) are fixedly connected to insert plates (14) on their opposite sides. The two insert plates (14) are respectively inserted into the slots (10) opened in the two positioning blocks (9).

4. A shock absorber according to claim 3, characterized in that, Each of the two fixed plates (11) has a set of telescopic rods (15) fixedly connected to its opposite face. Each set of telescopic rods (15) consists of two rods. The ends of the two sets of telescopic rods (15) that are far apart from each other are fixedly connected to the opposite faces of the two long plates (13). The two sets of telescopic rods (15) are located in the two sets of limiting springs (12).

5. A shock absorber according to claim 2, characterized in that, The top sides of the two long plates (13) are fixedly connected with handles (16). The top sides of the two handles (16) and the two fixed plates (11) are respectively provided with threaded holes and threaded grooves. Threaded columns (17) are installed in the threaded holes, and the other end of the threaded columns (17) is threaded into the threaded groove that is aligned with the threaded holes.

6. A shock absorber according to claim 1, characterized in that, A set of connecting plates (6) are fixedly connected to the opposite sides of the upper connecting block (3) and the lower connecting block (4), and a fixing block (7) is fixedly connected to the opposite sides of the two sets of connecting plates (6).

7. A shock absorber according to claim 1, characterized in that, The outer side of the protective shell (8) is provided with multiple heat dissipation holes (18), which are arranged in a circular array.

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