Radiating fin structure of shock absorber cylinder barrel
By setting symmetrically distributed semi-circular plates and heat dissipation fins on the surface of the shock absorber cylinder and using a limiting and fixing mechanism to stabilize the fin structure, the problem of low heat dissipation efficiency of the shock absorber cylinder is solved, achieving efficient heat conduction and convection, and improving the stability and service life of the shock absorber.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANGZHOU DAHUA SHOCK ABSORBING TECHNOLOGY CO LTD
- Filing Date
- 2025-07-04
- Publication Date
- 2026-05-15
AI Technical Summary
The existing shock absorber cylinder has low heat dissipation efficiency, which makes it difficult to meet the heat dissipation requirements under high load conditions. This leads to an increase in hydraulic oil temperature and a decrease in viscosity, affecting shock absorption performance and equipment stability.
Symmetrically distributed semicircular plates and heat dissipation fins are set on the cylinder surface, and the semicircular plates are stabilized by a limiting and fixing mechanism to increase the heat dissipation area and contact area, ensuring that the fin structure does not loosen during vibration, and achieving efficient heat conduction and convection.
It effectively reduces the temperature of hydraulic oil inside the cylinder, improves the stability and service life of the shock absorber, and prevents viscosity reduction and performance degradation caused by excessively high oil temperature.
Smart Images

Figure CN224245324U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shock absorber cylinder heat dissipation technology, specifically a shock absorber cylinder heat dissipation fin structure. Background Technology
[0002] In the automotive and construction machinery industries, shock absorbers are key components ensuring the smooth operation of equipment. During operation, the hydraulic oil inside the cylinder of a shock absorber generates a significant amount of heat due to the reciprocating motion of the piston. If this heat cannot be dissipated in time, the hydraulic oil temperature will rise, leading to a decrease in hydraulic oil viscosity. This alters the damping characteristics of the shock absorber, reducing its damping performance and potentially causing it to fail, thus impacting the safety and stability of the equipment.
[0003] According to announcement number CN 214946073 U, a shock absorber includes: a screw; an axial shock absorber, a radial shock absorber component, and an axial shock absorber are sequentially sleeved along the length of the screw; wherein, one end of the screw is provided with a thread, and the other end is provided with a nut.
[0004] The device's components are easy and quick to assemble and disassemble; it can dampen LCD displays from different directions for better shock absorption; and its overall structure is flexible, corrosion-resistant, and provides excellent shock absorption. However, the device's heat dissipation relies primarily on natural convection between the cylinder's surface area and the air, which is inefficient and insufficient for high-load operation. Utility Model Content
[0005] The purpose of this invention is to provide a shock absorber cylinder cooling fin structure to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a shock absorber cylinder heat dissipation fin structure, including a cylinder body, a heat dissipation mechanism provided on the surface of the cylinder body, and a limit fixing mechanism provided on the top of the cylinder body;
[0007] The heat dissipation mechanism includes semi-circular plates, which are symmetrically arranged on the surface of the cylinder. Heat dissipation fins are fixedly connected to the surfaces of the two semi-circular plates. Semi-circular inserts are fixedly connected to the bottom of the two semi-circular plates. A fixing ring is fixedly connected to the surface of the cylinder near the bottom. A circular slot is opened at the top of the fixing ring. A first inclined arc block is fixedly connected to the top of the two semi-circular plates.
[0008] Preferably, the surface of the semicircular insert is inserted into the circular slot to limit the semicircular plate and prevent it from moving.
[0009] Preferably, the inner sides of the two semicircular plates are fitted to the surface of the cylinder.
[0010] Preferably, the limiting and fixing mechanism includes an L-shaped cylinder, a guide rod is provided at the top of the L-shaped cylinder, a movable ring is fixedly connected to the bottom end of the guide rod, a second inclined arc block corresponding to the first inclined arc block is fixedly connected to the bottom of the movable ring, connecting holes are symmetrically opened at the front and back of the top of the L-shaped cylinder, a lead screw is symmetrically fixedly connected at the front and back of the top of the movable ring, a first bolt is threadedly connected to the surface of the lead screw, and a second bolt is threadedly connected to the surface of the lead screw.
[0011] Preferably, the top of the L-shaped cylinder has a hole that matches the guide rod, and the guide rod is slidably connected to the hole by passing through the surface of the guide rod.
[0012] Preferably, the lead screw is located inside the connecting hole, the first bolt is located below the L-shaped cylinder, and the second bolt is located above the L-shaped cylinder.
[0013] Preferably, there are two second bolts, which increases the limiting force of the first and second bolts on the lead screw.
[0014] Compared with the prior art, this utility model provides a shock absorber cylinder heat dissipation fin structure, which has the following beneficial effects:
[0015] 1. The shock absorber cylinder's cooling fin structure, by setting symmetrically distributed semi-circular plates on the cylinder surface and fixing cooling fins to the surface of the semi-circular plates, increases the heat dissipation area. Compared with traditional shock absorber cylinders, the contact area between air and cooling fins is significantly increased, accelerating heat conduction and convection, effectively reducing the working temperature of the hydraulic oil in the cylinder, and reducing problems such as decreased hydraulic oil viscosity and reduced damping performance caused by excessively high oil temperature, thereby improving the stability and service life of the shock absorber.
[0016] 2. The cylinder cooling fin structure of this shock absorber, in its limiting and fixing mechanism, utilizes components such as the L-shaped cylinder, guide rod, moving ring, and second inclined arc block to securely fix the semi-circular plate. The interaction between the second and first inclined arc blocks, adjusted by the lead screw, first bolt, and second bolt, applies uniform and reliable pressure to the semi-circular plate, preventing displacement or loosening during shock absorber operation. This ensures the cooling fin structure remains in a stable working state, enhancing the overall reliability of the shock absorber. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1This is a three-dimensional structural schematic diagram of the present utility model;
[0019] Figure 2 This is a three-dimensional schematic diagram of the semi-circular plate and fins of this utility model.
[0020] Figure 3 This is a three-dimensional schematic diagram of the fixing ring and circular slot of this utility model.
[0021] Figure 4 This is a three-dimensional schematic diagram of the L-shaped cylinder and guide rod of this utility model.
[0022] Figure 5 This is a three-dimensional schematic diagram of the lead screw and guide rod of this utility model;
[0023] Figure 6 This is a three-dimensional schematic diagram of the connecting hole and the second inclined arc block of this utility model.
[0024] In the diagram: 1. Cylinder body; 2. Heat dissipation mechanism; 21. Semicircular plate; 22. Heat dissipation fins; 23. Semicircular insert; 24. Fixing ring; 25. Circular slot; 26. First inclined arc block; 3. Limiting and fixing mechanism; 31. L-shaped cylinder; 32. Guide rod; 33. Moving ring; 34. Second inclined arc block; 35. Connecting hole; 36. Lead screw; 37. First bolt; 38. Second bolt. Detailed Implementation
[0025] 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.
[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0027] This utility model provides the following technical solution:
[0028] Example 1
[0029] Please see Figure 1-3This utility model provides a technical solution: a shock absorber cylinder heat dissipation fin structure, including a cylinder 1, a heat dissipation mechanism 2 provided on the surface of the cylinder 1, and a limit fixing mechanism 3 provided on the top of the cylinder 1;
[0030] The heat dissipation mechanism 2 includes a semi-circular plate 21, which is symmetrically arranged on the surface of the cylinder 1. Heat dissipation fins 22 are fixedly connected to the surface of the two semi-circular plates 21. Semi-circular inserts 23 are fixedly connected to the bottom of the two semi-circular plates 21. A fixing ring 24 is fixedly connected to the surface of the cylinder 1 near the bottom. A circular slot 25 is opened at the top of the fixing ring 24. A first inclined arc block 26 is fixedly connected to the top of the two semi-circular plates 21.
[0031] The surface of the semicircular insert 23 is inserted into the circular slot 25 to limit the semicircular plate 21 so that the semicircular plate 21 will not move.
[0032] The inner sides of the two semi-circular plates 21 are attached to the surface of the cylinder 1.
[0033] Example 2
[0034] Please see Figure 4-6 Furthermore, based on Embodiment 1, a limiting and fixing mechanism 3 is obtained.
[0035] The limiting and fixing mechanism 3 includes an L-shaped cylinder 31, a guide rod 32 is provided at the top of the L-shaped cylinder 31, a movable ring 33 is fixedly connected to the bottom of the guide rod 32, a second inclined arc block 34 corresponding to the first inclined arc block 26 is fixedly connected to the bottom of the movable ring 33, a connecting hole 35 is symmetrically opened at the front and back of the top of the L-shaped cylinder 31, a lead screw 36 is symmetrically fixedly connected at the front and back of the top of the movable ring 33, a first bolt 37 is threadedly connected to the surface of the lead screw 36, and a second bolt 38 is threadedly connected to the surface of the lead screw 36.
[0036] The top of the L-shaped cylinder 31 has a hole that matches the guide rod 32, and the guide rod 32 is slidably connected to the hole by passing through its surface.
[0037] The lead screw 36 is located inside the connecting hole 35, the first bolt 37 is located below the L-shaped cylinder 31, and the second bolt 38 is located above the L-shaped cylinder 31.
[0038] There are two second bolts 38, which increases the limiting force of the first bolt 37 and the second bolt 38 on the lead screw 36.
[0039] In actual operation, when this device is in use, the semicircular plates 21 symmetrically arranged on the surface of the cylinder 1 and the heat dissipation fins 22 fixed on their surfaces significantly increase the contact area with the air. When the shock absorber is running, heat is conducted from the cylinder 1 to the semicircular plates 21, and then diffused into the surrounding air by the heat dissipation fins 22. The semicircular insert 23 at the bottom of the semicircular plate 21 is inserted into the circular slot 25 at the top of the fixing ring 24 to initially limit and fix the semicircular plate 21, ensuring that the semicircular plate 21 is tightly fitted to the cylinder 1, reducing the thermal resistance during heat conduction, ensuring that heat can be quickly and efficiently transferred to the heat dissipation fins 22, accelerating the heat convection between the air and the fins, thereby reducing the temperature of the hydraulic oil inside the cylinder 1.
[0040] During installation, the semicircular plate 21 is first initially installed by engaging the semicircular insert 23 with the circular slot 25. Then, the L-shaped cylinder 31 is installed on top of the cylinder body 1, with the guide rod 32 passing through a hole at the top of the L-shaped cylinder 31, allowing the moving ring 33 to slide up and down along the guide rod 32. The second inclined arc-shaped block 34 at the bottom of the moving ring 33 corresponds to the first inclined arc-shaped block 26 at the top of the semicircular plate 21. The height of the moving ring 33 can be adjusted by rotating the first bolt 37 and the second bolt 38 on the screw 36. When the moving ring 33 is adjusted downwards, the second inclined arc-shaped block 34 presses against the first inclined arc-shaped block 26, causing the semicircular plate 21 to further conform to the cylinder body 1, enhancing the fixing effect and ensuring that the heat dissipation fins 22 are in a stable working state. The two second bolts 38 located above the L-shaped cylinder 31 cooperate with the first bolt 37 located below to limit the lead screw 36 from both ends, increase the fixing force on the moving ring 33, prevent it from loosening during the vibration of the shock absorber, ensure the stability of the entire heat dissipation fin 22 structure, and effectively cope with vibration and impact under different working conditions.
[0041] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. A shock absorber cylinder cooling fin structure, comprising a cylinder body (1), characterized in that: The surface of the cylinder (1) is provided with a heat dissipation mechanism (2), and the top of the cylinder (1) is provided with a limit fixing mechanism (3); The heat dissipation mechanism (2) includes a semi-circular plate (21), which is symmetrically arranged on the surface of the cylinder (1). Heat dissipation fins (22) are fixedly connected to the surfaces of the two semi-circular plates (21). Semi-circular inserts (23) are fixedly connected to the bottom of the two semi-circular plates (21). A fixing ring (24) is fixedly connected to the surface of the cylinder (1) near the bottom. A circular slot (25) is opened at the top of the fixing ring (24). A first inclined arc block (26) is fixedly connected to the top of the two semi-circular plates (21).
2. The shock absorber cylinder heat dissipation fin structure according to claim 1, characterized in that: The surface of the semi-circular insert (23) is inserted into the circular slot (25).
3. The shock absorber cylinder cooling fin structure according to claim 1, characterized in that: The inner sides of the two semicircular plates (21) are attached to the surface of the cylinder (1).
4. The shock absorber cylinder cooling fin structure according to claim 1, characterized in that: The limiting and fixing mechanism (3) includes an L-shaped cylinder (31), a guide rod (32) is provided at the top of the L-shaped cylinder (31), a movable ring (33) is fixedly connected to the bottom end of the guide rod (32), a second inclined arc block (34) corresponding to the first inclined arc block (26) is fixedly connected to the bottom of the movable ring (33), a connecting hole (35) is symmetrically opened at the front and back of the top of the L-shaped cylinder (31), a lead screw (36) is symmetrically fixedly connected at the front and back of the top of the movable ring (33), a first bolt (37) is threadedly connected to the surface of the lead screw (36), and a second bolt (38) is threadedly connected to the surface of the lead screw (36).
5. The shock absorber cylinder cooling fin structure according to claim 4, characterized in that: The top of the L-shaped cylinder (31) is provided with a hole that matches the guide rod (32), and the surface of the guide rod (32) is penetrated and slidably connected to the hole.
6. The shock absorber cylinder cooling fin structure according to claim 4, characterized in that: The lead screw (36) is located inside the connecting hole (35), the first bolt (37) is located below the L-shaped cylinder (31), and the second bolt (38) is located above the L-shaped cylinder (31).
7. The shock absorber cylinder cooling fin structure according to claim 4, characterized in that: There are two of the second bolts (38).