An adjustable stroke spring compression rod
By using an adjustable-stroke spring compression rod, and adjusting the threaded rod length and spring modulus, the problem of poor versatility of compression rods of different specifications is solved, achieving adaptability of the compression rod under different working conditions and simplifying maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI DAHE MATERIAL TECH CO LTD
- Filing Date
- 2025-06-11
- Publication Date
- 2026-05-29
AI Technical Summary
The existing spring compression rods come in a variety of specifications and have poor versatility, leading to difficulties in selection and inconvenience in maintenance.
Design an adjustable stroke spring compression rod. By adjusting the length of the threaded rod and replacing springs with different elastic moduli, the compression length and compression force can be adjusted to meet the needs of different working conditions.
It improves the versatility of the compression rod, reduces design and maintenance workload, and lowers the difficulty of equipment design and maintenance.
Smart Images

Figure CN224301274U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an adjustable stroke spring compression rod, belonging to the field of linkage technology for mechanical equipment in the metallurgical industry. Background Technology
[0002] In some mechanical equipment, such as stamping presses and pressure machines, spring compression rods can be used to provide cushioning and reset functions, protecting equipment parts from excessive impact forces while ensuring the normal operation of the equipment. With the development of technology, they are not only widely used in mechanical equipment, but also increasingly applied in furniture lifting, electronic device switches, and shock absorption devices.
[0003] Currently, there are many types of spring compression rods on the market, with even more diverse specifications, which causes considerable confusion for designers when making choices. Moreover, their versatility is poor, as compression rods of different specifications cannot be interchanged, causing considerable trouble for later maintenance and replacement. Utility Model Content
[0004] The purpose of this invention is to provide an adjustable-stroke spring compression rod, which can not only adjust the compression stroke of the compression rod, but also adjust the magnitude of the compression force, thereby achieving multiple uses with one rod, improving the versatility of the compression rod, and solving the problems existing in the background art.
[0005] The technical solution of this utility model is:
[0006] An adjustable stroke spring compression rod includes a cylinder, a spring, an adjusting ring, a lock nut, a threaded rod, a head lug, and a slider. The cylinder is a circular sleeve with one end blocked. The spring and the slider are respectively disposed inside the cylinder, with the spring located between the blind end of the cylinder and the slider. One end of the threaded rod is threaded to the slider, and the adjusting ring and the lock nut are respectively installed on the threaded rod. The head lug is threaded to the other end of the threaded rod.
[0007] The outer wall of the cylinder is provided with a rectangular window, and the window is provided with a cover.
[0008] The top cover is fixed to the cylinder with bolts.
[0009] The blind end of the cylinder is provided with a tail lug.
[0010] The threaded rod has a T-type thread.
[0011] The adjusting ring is locked onto the threaded rod by a lock nut.
[0012] The beneficial effects of this utility model are: by adjusting the length of the threaded rod entering the cylinder, the compression length of the compression rod can be adjusted, thus adapting to working conditions with different compression lengths; by replacing springs with different elastic moduli through windows designed on the outer wall of the cylinder, the compression force of the compression rod can be adjusted to meet different compression force requirements. This utility model has strong versatility and can be applied to occasions with different compression lengths and compression forces, reducing the workload of design and selection, as well as the specifications and quantity of equipment maintenance spare parts, and lowering the difficulty of equipment design and maintenance. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the present invention after compression;
[0015] Figure 3 This is a schematic diagram of the window of this utility model;
[0016] Figure 4 This is a schematic diagram of the mounting structure of the top cover of this utility model;
[0017] In the diagram: 1. Tail lifting lug; 2. Cylinder body; 3. Spring; 4. Adjusting ring; 5. Lock nut; 6. Threaded rod; 7. Head lug; 8. Slider; 9. Window; 10. Top cover; 11. Bolt; 12. Blind end; 13. Round hole. Detailed Implementation
[0018] The present invention will be further described below with reference to the accompanying drawings and examples.
[0019] See attached document Figure 1-4 An adjustable stroke spring compression rod includes a cylinder 2, a spring 3, an adjusting ring 4, a lock nut 5, a threaded rod 6, a head lug 7, and a slider 8. The cylinder 2 is a cylindrical sleeve with one end blocked. The spring 3 and the slider 8 are respectively disposed inside the cylinder 2. The spring 3 is located between the blind end 12 of the cylinder 2 and the slider 8. One end of the threaded rod 6 is threaded to the slider 8. The adjusting ring 4 and the lock nut 5 are respectively installed on the threaded rod 6. The head lug 7 is threaded to the other end of the threaded rod 6.
[0020] In this embodiment, refer to the appendix Figure 1-4 The cylinder 2 is a circular sleeve with one end blocked; the slider 8 is installed inside the circular hole 13 inside the cylinder 2; the spring 3 is also installed inside the circular hole 13 of the cylinder 2, located between the blind end 12 and the slider 8; the threaded rod 6 is connected to the slider 8 by threads and slides with the slider 8; the adjusting ring 4 is installed on the T-shaped thread outside the threaded rod 6 and can move along the axial direction of the threaded rod 6; the lock nut 5 is also installed on the threaded rod 6 and is close to the outside of the adjusting ring 4; the head ear ring 7 is installed on the top of the threaded rod 7 by threads; the top cover 10 is installed on the upper part of the window 8 on the outer wall of the cylinder 2 and is fixed to the cylinder 2 by bolts 11.
[0021] according to Figure 3 , 4 As shown, the outer wall of the cylinder 2 is designed with a rectangular window 8.
[0022] according to Figure 1 , 2 As shown, the threaded rod 6 is designed with a T-shaped thread. The adjusting ring 4 is also designed with a T-shaped thread inside. The T-shaped thread allows the threaded rod 6 to move axially along the T-shaped thread of the threaded rod 6, thereby adjusting the length L of the threaded rod 6 entering the cylinder 2, and thus adjusting the compression length of the entire compression rod.
[0023] The connection between the tail lifting lug 1 and the cylinder 2 is designed as a threaded connection. Different structures can be replaced according to customer needs, such as lifting lugs, flanges, pins, etc.
[0024] The connection between the head lifting lug 7 and the threaded rod 6 is designed as a threaded connection. Different structures can be replaced according to customer needs, such as lifting lugs, flanges, pins, etc.
[0025] An embodiment of this utility model is as follows:
[0026] The outer diameter of the tail lug 1 and the head lug 7 is 60mm, the inner diameter is 40mm, and the length is 90mm.
[0027] The outer diameter of cylinder 2 is 60mm, the inner diameter is 40mm, and the length is 400mm;
[0028] Spring 3 has a wire diameter of 2mm and a length of 340mm;
[0029] The internal threads of the adjusting ring 4 and the lock nut 5 are T2×2 with a thickness of 10mm;
[0030] The threaded rod 6 is T2×2, with a length of 300mm;
[0031] The diameter of slider 8 is 40mm and its length is 30mm;
[0032] Window 9 is 150mm long and 40mm wide;
[0033] The top cover 10 is 170mm long and 55mm wide;
[0034] Bolt 11 is M5×10.
Claims
1. A spring compression rod with adjustable stroke, characterized in that: It includes a cylinder (2), a spring (3), an adjusting ring (4), a lock nut (5), a threaded rod (6), a head lifting lug (7), and a slider (8). The cylinder (2) is a round sleeve with one end blocked. The spring (3) and the slider (8) are respectively set inside the cylinder (2). The spring (3) is located between the blind end (12) of the cylinder (2) and the slider (8). One end of the threaded rod (6) is threaded to the slider (8). The adjusting ring (4) and the lock nut (5) are respectively installed on the threaded rod (6). The head lifting lug (7) is threaded to the other end of the threaded rod (6).
2. The adjustable stroke spring compression rod according to claim 1, characterized in that: The outer wall of the cylinder (2) is provided with a rectangular window (9), and the window (9) is provided with a cover (10).
3. The adjustable stroke spring compression rod according to claim 2, characterized in that: The top cover (10) is fixed to the cylinder (2) by bolts (11).
4. The adjustable stroke spring compression rod according to claim 1, characterized in that: The blind end (12) of the cylinder (2) is provided with a tail lug (1).
5. The adjustable stroke spring compression rod according to claim 1, characterized in that: The threaded rod (6) has a T-type thread.
6. The adjustable stroke spring compression rod according to claim 1, characterized in that: The adjusting ring (4) is locked onto the threaded rod (6) by a lock nut (5).