Straight cylinder type spring

Abstract

The utility model relates to the technical field of springs, in particular to a straight cylinder type spring which comprises a first positioning sleeve, a second positioning sleeve is connected in the first positioning sleeve in a sliding mode, a first positioning ring is arranged at the upper end of the first positioning sleeve, and a second positioning ring is arranged at the lower end of the second positioning sleeve. The surfaces of the first positioning sleeve and the second positioning sleeve are sleeved with spring bodies, the upper ends and the lower ends of the spring bodies abut against the first positioning ring and the second positioning ring respectively, adjusting assemblies are arranged in the first positioning sleeve and the second positioning sleeve, and each adjusting assembly comprises an adjusting lead screw, an inserting hole, a positioning sliding block and an adjusting block. By rotating a positioning sliding block and an adjusting block, the effective sliding distance of an adjusting lead screw can be adjusted, then the distance between a first positioning ring and a second positioning ring can be adjusted, a spring body can be pressed to different degrees, then the rigidity of the spring is adjusted, and the rigidity of the spring body can be flexibly adjusted; therefore, different load conditions can be adapted.

Description

Technical Field

[0001] This utility model relates to the field of spring technology, specifically to a straight cylindrical spring. Background Technology

[0002] With the increasing automation of industry, the demand for internal vibration damping and external shock absorption in various mechanical equipment is growing. Existing elastic elements, especially springs, play a crucial role in many applications. They are used not only in everyday consumer goods such as furniture and sports equipment, but also in high-end manufacturing industries such as automotive suspension systems and aircraft landing gear. In recent years, researchers have developed various types of springs, such as torsion springs, compression springs, and tension springs, to meet specific needs in different environments. These improvements have effectively enhanced the performance and lifespan of equipment. However, facing increasingly complex engineering challenges, the design concepts and technical parameters of traditional springs still require further optimization and development.

[0003] Currently, the most common straight-tube springs on the market mainly include two types: standard type and irregular cross-section type, both made of steel wire. Standard straight-tube springs are widely used due to their low production cost and wide range of applications. However, they have the problem of difficulty in stiffness adjustment. That is, once the diameter, wire diameter, and number of coils are determined, their load-bearing capacity and deformation are basically fixed and cannot be flexibly adjusted to adapt to different load conditions.

[0004] Therefore, it is necessary to invent a straight-tube spring to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a straight-tube spring to solve the problem of difficulty in stiffness adjustment and the inability to flexibly adjust it to adapt to different load conditions.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a straight cylindrical spring, comprising a first positioning sleeve, a second positioning sleeve slidably connected inside the first positioning sleeve, a first positioning ring provided at the upper end of the first positioning sleeve, a second positioning ring provided at the lower end of the second positioning sleeve, a spring body sleeved on the surfaces of the first and second positioning sleeves, the upper and lower ends of the spring body abutting against the first and second positioning rings respectively, and an adjustment assembly provided inside the first and second positioning sleeves, the adjustment assembly including an adjustment screw, a insertion hole, a positioning slider, and an adjustment block.

[0007] By adopting the above technical solution, when the first positioning ring and the second positioning ring are under pressure, the second positioning sleeve will slide inside the first sleeve, while compressing the spring body and reducing vibration of the equipment. At the same time, the stiffness of the spring body can be adjusted by adjusting the lead screw and the positioning slider.

[0008] Optionally, the adjusting screw is fixedly connected to the inner top wall of the first positioning sleeve, the insertion hole is opened at the upper end of the second positioning sleeve, and the lower end of the adjusting screw passes through the insertion hole.

[0009] By adopting the above technical solution, the second positioning sleeve slides inside the first positioning sleeve, driving the adjusting screw to slide up and down inside the insertion hole.

[0010] Optionally, the positioning slider is slidably connected to the inside of the second positioning sleeve, the adjusting block is fixedly connected to the lower surface of the positioning slider, and the lower end of the adjusting screw is threadedly connected to the positioning slider and the adjusting block.

[0011] By adopting the above technical solution, during the sliding process of the adjusting screw inside the insertion hole, it drives the positioning slider to slide inside the second positioning sleeve. By rotating the positioning slider and the adjusting block, the effective sliding distance of the adjusting screw can be adjusted, thereby adjusting the distance between the first positioning ring and the second positioning ring, compressing the spring body to different degrees, and thus adjusting the stiffness of the spring.

[0012] Optionally, a first rubber pad is fixedly connected to the inner top wall of the second positioning sleeve, and a second rubber pad is fixedly connected to the upper surface of the positioning slider.

[0013] By adopting the above technical solution, the first rubber pad and the second rubber pad cooperate to avoid the positioning slider from rigidly contacting the inner top wall of the second positioning sleeve.

[0014] Optionally, the upper end of the first positioning sleeve is provided with a first threaded tooth, and the inner wall of the first positioning ring is provided with a first threaded groove. The first positioning ring and the first positioning sleeve are threadedly connected through the first threaded tooth and the first threaded groove.

[0015] By adopting the above technical solution, the first positioning ring and the first positioning sleeve are easy to disassemble.

[0016] Optionally, the lower end of the second positioning sleeve is provided with a second threaded tooth, and the inner wall of the second positioning ring is provided with a second threaded groove. The second positioning ring and the second positioning sleeve are threadedly connected through the second threaded tooth and the second threaded groove.

[0017] By adopting the above technical solution, the second positioning ring and the second positioning sleeve are easy to disassemble.

[0018] Optionally, the upper surface of the first positioning ring is fixedly connected with a plurality of first connecting screws, and the lower surface of the second positioning ring is fixedly connected with a plurality of second connecting screws.

[0019] By adopting the above technical solution, the first connecting screw and the second connecting screw cooperate to facilitate the connection of the spring with other equipment. Different fasteners can be welded to the surfaces of the first positioning ring and the second positioning ring depending on the usage environment.

[0020] Optionally, the first positioning ring has a first slot on its side wall, the second positioning ring has a second slot on its side wall, and the upper and lower ends of the spring body are fixedly connected with snap-fit ​​blocks, with the upper and lower sets of snap-fit ​​blocks respectively snapping into the first slot and the second slot.

[0021] By adopting the above technical solution, the snap-fit ​​block cooperates with the first and second snap-fit ​​slots, thereby improving the stability of the spring body during use.

[0022] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0023] 1. This utility model can adjust the effective sliding distance of the adjusting screw by rotating the positioning slider and the adjusting block, thereby adjusting the distance between the first positioning ring and the second positioning ring, compressing the spring body to different degrees, and thus adjusting the stiffness of the spring, so that the stiffness of the spring body can be flexibly adjusted to adapt to different load conditions.

[0024] 2. This utility model improves the stability of the spring body during use by fitting the spring body onto the surfaces of the first and second positioning sleeves and then using a snap-fit ​​block to engage with the first and second slots. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the external structure of the positioning sleeve of this utility model;

[0027] Figure 3 This is a schematic diagram of the internal structure of the positioning sleeve of this utility model. Figure 1 (Both sets of positioning sleeves are in a relaxed state);

[0028] Figure 4 This is a schematic diagram of the internal structure of the positioning sleeve of this utility model. Figure 2 (Two sets of positioning sleeves are pressed together);

[0029] Figure 5 This utility model Figure 3 Schematic diagram of the structure at point A in the diagram;

[0030] Figure 6 This is a schematic diagram of the first positioning ring structure of this utility model;

[0031] Figure 7This is a schematic diagram of the second positioning ring structure of this utility model.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. First positioning sleeve; 11. First threaded tooth; 12. Adjusting screw; 2. Second positioning sleeve; 21. Second threaded tooth; 22. Insertion hole; 23. First rubber gasket; 24. Positioning slider; 25. Adjusting block; 26. Second rubber gasket; 3. First positioning ring; 31. First slot; 32. First connecting screw; 33. First threaded groove; 4. Second positioning ring; 41. Second slot; 42. Second connecting screw; 43. Second threaded groove; 5. Spring body; 51. Snap-fit ​​block. Detailed Implementation

[0034] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0035] This utility model provides, for example Figures 1 to 5 The illustrated straight-tube spring includes a first positioning sleeve 1, with a second positioning sleeve 2 slidably connected inside the first positioning sleeve 1. A first positioning ring 3 is provided at the upper end of the first positioning sleeve 1, and a second positioning ring 4 is provided at the lower end of the second positioning sleeve 2. A spring body 5 is fitted onto the surfaces of the first positioning sleeve 1 and the second positioning sleeve 2, with the upper and lower ends of the spring body 5 abutting against the first positioning ring 3 and the second positioning ring 4, respectively. An adjustment assembly is provided inside the first positioning sleeve 1 and the second positioning sleeve 2, including an adjustment screw 12, a insertion hole 22, and a positioning slide. Block 24, adjusting block 25, adjusting screw 12 are fixedly connected to the inner top wall of the first positioning sleeve 1, insertion hole 22 is opened at the upper end of the second positioning sleeve 2, the lower end of adjusting screw 12 passes through insertion hole 22, positioning slider 24 is slidably connected to the inside of the second positioning sleeve 2, adjusting block 25 is fixedly connected to the lower surface of positioning slider 24, the lower end of adjusting screw 12 is threadedly connected to positioning slider 24 and adjusting block 25, the inner top wall of the second positioning sleeve 2 is fixedly connected to a first rubber gasket 23, and the upper surface of positioning slider 24 is fixedly connected to a second rubber gasket 26.

[0036] Considering that the actual working environment may involve high temperature and high pressure, stainless steel with excellent corrosion resistance and wear resistance is used as the raw material for manufacturing. The spring body 5 is made of high-strength stainless steel wire, and the first positioning sleeve 1 and the second positioning sleeve 2 are made of aluminum. The dimensions of the first positioning sleeve 1, the second positioning sleeve 2 and the spring body 5 are designed according to the actual use scenario. The adjustment components are all made of aluminum alloy. The positioning slider 24 and the lower end of the first positioning sleeve 1 are equipped with self-lubricating bearings to ensure smooth movement and reduce wear. The user can adjust the distance between the first positioning ring 3 and the second positioning ring 4 according to the needs of use, thereby changing the tightness of the spring body 5 and realizing effective control of the stiffness of the entire spring body 5.

[0037] Specifically, the adjusting block 25 is a common hexagonal nut. During the adjustment of the spring body 5, the wrench is inserted into the inside of the second positioning sleeve 2 and placed on the outside of the adjusting block 25. At this time, the wrench is turned, which drives the positioning slider 24 to rotate clockwise. At this time, the adjusting screw 12 moves downward under the action of the positioning slider 24, which in turn drives the first positioning sleeve 1 to slide downward on the surface of the second positioning sleeve 2, which in turn drives the first positioning ring 3 to move downward. The first positioning ring 3 and the second positioning ring 4 cooperate to compress the spring body 5, thereby increasing the stiffness of the spring body 5. Conversely, the spring body 5 is relaxed, and the stiffness of the spring body 5 is reduced.

[0038] participate Figure 1 , Figure 2 , Figure 6 and Figure 7 The upper end of the first positioning sleeve 1 is provided with a first threaded tooth 11, and the inner wall of the first positioning ring 3 is provided with a first threaded groove 33. The first positioning ring 3 and the first positioning sleeve 1 are threadedly connected by the first threaded tooth 11 and the first threaded groove 33. The lower end of the second positioning sleeve 2 is provided with a second threaded tooth 21, and the inner wall of the second positioning ring 4 is provided with a second threaded groove 43. The second positioning ring 4 and the second positioning sleeve 2 are threadedly connected by the second threaded tooth 21 and the second threaded groove 43. The upper surface of the first positioning ring 3 is fixedly connected with multiple sets of first connecting screws 32, and the lower surface of the second positioning ring 4 is fixedly connected with multiple sets of second connecting screws 42. The side wall of the first positioning ring 3 is provided with a first slot 31, and the side wall of the second positioning ring 4 is provided with a second slot 41. The upper and lower ends of the spring body 5 are both fixedly connected with locking blocks 51, and the upper and lower sets of locking blocks 51 are respectively locked inside the first slot 31 and the second slot 41.

[0039] In addition, during installation, the first positioning sleeve 1 is fitted onto the surface of the second positioning sleeve 2, and the adjusting screw 12 is passed through the insertion hole 22. Then, the positioning slider 24 and the adjusting block 25 are threadedly connected to the lower end of the adjusting screw 12, so that the first positioning sleeve 1 is locked onto the surface of the second positioning sleeve 2. Then, the second thread tooth 21 and the second thread groove 43 connect and fix the second positioning ring 4 to the lower end of the second positioning sleeve 2. Next, the spring body 5 is fitted onto the surface of the first positioning sleeve 1 and the second positioning sleeve 2, and the locking block 51 at the lower end of the spring body 5 is locked inside the second locking groove 41. Then, the first positioning ring 3 is connected and fixed to the upper end of the first positioning sleeve 1 using the first thread tooth 11 and the first thread groove 33, and the locking block 51 at the upper end of the spring body 5 is locked inside the first locking groove 31. Next, the stiffness of the spring body 5 is adjusted according to the actual use needs, and the spring is fixed inside the equipment using the first connecting screw 32 and the second connecting screw 42.

[0040] The working principle of this utility model is as follows: By rotating the positioning slider 24 and the adjusting block 25, the effective sliding distance of the adjusting screw 12 can be adjusted, thereby adjusting the distance between the first positioning ring 3 and the second positioning ring 4, pressing the spring body 5 to different degrees, and thus adjusting the stiffness of the spring. This allows the stiffness of the spring body 5 to be flexibly adjusted to adapt to different load conditions. At the same time, after the spring body 5 is sleeved on the surface of the first positioning sleeve 1 and the second positioning sleeve 2, the locking block 51 cooperates with the first locking groove 31 and the second locking groove 41 to improve the stability of the spring body 5 during use.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A straight-tube spring, comprising a first positioning sleeve (1), characterized in that: The first positioning sleeve (1) is slidably connected to the second positioning sleeve (2). The upper end of the first positioning sleeve (1) is provided with a first positioning ring (3), and the lower end of the second positioning sleeve (2) is provided with a second positioning ring (4). The surfaces of the first positioning sleeve (1) and the second positioning sleeve (2) are fitted with spring bodies (5). The upper and lower ends of the spring bodies (5) respectively abut against the first positioning ring (3) and the second positioning ring (4). The first positioning sleeve (1) and the second positioning sleeve (2) are provided with adjustment components. The adjustment components include an adjustment screw (12), a plug hole (22), a positioning slider (24), and an adjustment block (25).

2. A straight-tube spring according to claim 1, characterized in that: The adjusting screw (12) is fixedly connected to the inner top wall of the first positioning sleeve (1), the insertion hole (22) is opened at the upper end of the second positioning sleeve (2), and the lower end of the adjusting screw (12) passes through the insertion hole (22).

3. A straight-tube spring according to claim 1, characterized in that: The positioning slider (24) is slidably connected to the inside of the second positioning sleeve (2), the adjusting block (25) is fixedly connected to the lower surface of the positioning slider (24), and the lower end of the adjusting screw (12) is threadedly connected to the positioning slider (24) and the adjusting block (25).

4. A straight-tube spring according to claim 3, characterized in that: The inner top wall of the second positioning sleeve (2) is fixedly connected to a first rubber gasket (23), and the upper surface of the positioning slider (24) is fixedly connected to a second rubber gasket (26).

5. A straight-tube spring according to claim 1, characterized in that: The upper end of the first positioning sleeve (1) is provided with a first thread tooth (11), and the inner wall of the first positioning ring (3) is provided with a first thread groove (33). The first positioning ring (3) and the first positioning sleeve (1) are threadedly connected by the first thread tooth (11) and the first thread groove (33).

6. A straight-tube spring according to claim 1, characterized in that: The lower end of the second positioning sleeve (2) is provided with a second thread tooth (21), and the inner wall of the second positioning ring (4) is provided with a second thread groove (43). The second positioning ring (4) and the second positioning sleeve (2) are threadedly connected by the second thread tooth (21) and the second thread groove (43).

7. A straight-tube spring according to claim 1, characterized in that: The upper surface of the first positioning ring (3) is fixedly connected with a plurality of first connecting screws (32), and the lower surface of the second positioning ring (4) is fixedly connected with a plurality of second connecting screws (42).

8. A straight-tube spring according to claim 1, characterized in that: The first positioning ring (3) has a first slot (31) on its side wall, and the second positioning ring (4) has a second slot (41) on its side wall. The upper and lower ends of the spring body (5) are fixedly connected with snap-fit ​​blocks (51), and the upper and lower sets of snap-fit ​​blocks (51) are respectively snapped into the first slot (31) and the second slot (41).

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