Maintenance-free spring buffer

Abstract

The utility model discloses a maintenance-free spring buffer. The maintenance-free spring buffer comprises a mounting plate, a butt joint sleeve, a spring, a butt joint rod and a fastening structure, the butt joint rod is in butt joint with the butt joint sleeve, then the butt joint plate is arranged on the protruding portion on the butt joint sleeve in a sleeved mode, the bolt is locked into the bolt hole and connected with the second bolt hole, and therefore the butt joint plate is fixed to the butt joint sleeve, the fixing block is limited, and the butt joint rod can be fixed in the butt joint sleeve. The butt-joint rod cannot move in the butt-joint sleeve under the limiting of the fixing block so as to be reinforced, then the threaded rod is rotated so that the top block can move upwards to abut against the end face of the butt-joint rod, the butt-joint rod can be firmly fixed in the butt-joint sleeve under the limiting of the fixing block and the fastening pushing of the top block, and the butt-joint rod can be fixed more firmly; and the problem of frequent maintenance due to easy loosening is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of spring buffers, and specifically relates to a maintenance-free spring buffer. Background Technique

[0002] The spring buffer adopts a buffering principle to reduce the vibration generated during vehicle driving and increase the comfort of the vehicle. When the spring buffer is installed on the vehicle, it effectively solves the problem of the weakening of the shock absorber spring, restores the performance of the shock absorber, and at the same time protects the shock absorber and the suspension system, avoiding oil leakage from the oil seal of the shock absorber core.

[0003] Existing patent: CN221628707U, discloses a spring buffer, which relates to the field of buffers and includes a base. An outer shell is arranged above the base. A spring body is arranged inside the outer shell. Fixed components are symmetrically arranged on both sides of the outer shell. The fixed components include a first fixing strip, two second fixing strips, and fixing bolts. The bottom of the first fixing strip is fixedly connected to the base, and the two second fixing strips are respectively arranged on both sides of the first fixing strip.

[0004] When the above-mentioned patent or existing spring buffer is installed, the docking rod will be docked with the docking sleeve and then fixed. After docking, it is not easy to reinforce, resulting in looseness easily occurring during long-term use, causing the docking rod to move in the docking sleeve and collide, thus generating noise and requiring maintenance. Content of the Utility Model

[0005] The purpose of the utility model is to provide a maintenance-free spring buffer to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions: A maintenance-free spring buffer includes a mounting plate, a docking sleeve mounted on the mounting plate, a spring fixed on the mounting plate, a docking rod docked inside the docking sleeve. A fastening structure is arranged on the docking sleeve. The fastening structure includes a fixed block. A fixed block is installed on the docking rod. A docking plate is arranged at the lower end of the fixed block. A bolt hole is arranged on the docking plate. A second bolt hole is arranged on the docking sleeve. A threaded rod is arranged inside the docking sleeve. A threaded sleeve is arranged on the threaded rod. A top block is arranged at the top of the threaded sleeve. A limiting sleeve is arranged inside the docking sleeve.

[0007] Preferably, the top block is pentagonal, the shape of the limiting sleeve is the same as that of the top block, and the top block slides along the inner wall of the limiting sleeve.

[0008] Preferably, at least two docking plates are arranged, and they are symmetrically arranged at the lower end of the fixed block.

[0009] Preferably, the docking plate is in a "concave" shape, an inner groove is formed on the docking plate, and the bolt hole is located in the inner groove.

[0010] Preferably, the surface of the docking sleeve is provided with protruding portions, and the number of the protruding portions is the same as that of the docking plates.

[0011] Preferably, the lower end of the threaded rod does not protrude from the bottom end surface of the mounting plate.

[0012] Preferably, a top spring is arranged inside the docking sleeve, and one end of the top spring is connected to the top block.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] Dock the docking rod with the docking sleeve, then sleeved the docking plate on the protruding portion of the docking sleeve, lock the bolt into the bolt hole and connect it with the second bolt hole to fix the docking plate on the docking sleeve, thereby limiting the fixing block, making the docking rod fixed in the docking sleeve, and under the limitation of the fixing block, the docking rod cannot move in the docking sleeve, so as to carry out reinforcement. Then rotate the threaded rod, so that the top block will move upward and press against the end surface of the docking rod. Under the limitation of the fixing block and the pushing of the top block for fastening, the docking rod will be firmly fixed in the docking sleeve and fixed more firmly, avoiding the problem of easy loosening and the need for frequent maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a front view structural diagram of the present utility model;

[0017] Figure 3 is a front view sectional structural diagram of the fastening structure of the present utility model;

[0018] Figure 4 is a top view structural diagram of the docking sleeve of the present utility model.

[0019] In the figure: mounting plate - 1, docking sleeve - 2, spring - 3, docking rod - 4, fastening structure - 5, fixing block - 51, docking plate - 52, bolt hole - 53, inner groove - 531, second bolt hole - 54, threaded rod - 55, threaded sleeve - 56, top block - 57, limiting sleeve - 58, protruding portion - 501, top spring - 551. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to further explain the technical solution of the present utility model, the following is elaborated in detail through specific embodiments.

[0021] Please refer to Figure 1 andFigure 2 , the present utility model provides a maintenance-free spring buffer, which includes a mounting plate 1, a docking sleeve 2 welded to the middle of the top surface of the mounting plate 1, a spring 3 welded to the top of the mounting plate 1, and the docking sleeve 2 is located within the spring 3, a docking rod 4 docked inside the docking sleeve 2. The docking rod 4 is a buffer docking rod, and a fastening structure 5 is provided on the docking sleeve 2.

[0022] Please refer to Figure 2 , Figure 3 and Figure 4 , the present utility model provides a maintenance-free spring buffer. The fastening structure 5 includes a fixed block 51. The fixed block 51 is installed on the docking rod 4 and is limited above the docking rod 4. The fixed block 51 will not rotate or move up and down along the surface of the docking rod 4. Two docking plates 52 are integrally formed at the bottom end surface of the fixed block 51. The two docking plates 52 are symmetrically arranged at the lower end of the fixed block 51. Of course, it can also be three, four, etc., which are not limited here. Bolt holes 53 are provided on the docking plates 52, and inner grooves 531 are also provided on the docking plates 52. The bolt holes 53 are located within the inner grooves 531, so that after connecting bolts in the bolt holes 53, they will not protrude from the surface of the docking plates 52 and conflict with the spring 3.

[0023] Second bolt holes 54 are provided on the docking sleeve 2, and a number of protruding portions 501 identical to the docking plates 52 are integrally formed on the surface of the docking sleeve 2. The docking plates 52 are in a "concave" shape, but the docking plates 52 are sleeved on the surface of the protruding portions 501 to avoid the problem that the docking rod 4 can rotate after being docked and installed.

[0024] A rotatably connected threaded rod 55 is assembled inside the docking sleeve 2. The lower end of the threaded rod 55 will not protrude from the bottom end surface of the mounting plate 1, so that the mounting plate 1 will not be resisted by the threaded rod 55 during installation, which is not conducive to installation. A threaded sleeve 56 is threadedly connected to the threaded rod 55. A top block 57 is integrally formed at the top of the threaded sleeve 56. A limiting sleeve 58 is provided inside the docking sleeve 2. The top block 57 is pentagonal. Of course, it can also be quadrilateral, hexagonal, etc., which are not limited here. The shape of the limiting sleeve 58 is the same as that of the top block 57, and the top block 57 slides along the inner wall of the limiting sleeve 58. A top spring 551 is provided inside the docking sleeve 2. One end of the top spring 551 is connected to the top block 57. Through the pushing of the top spring 551, the threads of the threaded rod 55 and the threaded sleeve 56 can be mutually fitted, thereby improving stability.

[0025] Dock the docking rod 4 with the docking sleeve 2, and then press the fixing block 51 against the surface of the docking sleeve 2. At this time, the docking plate 52 will be sleeved on the convex portion 501 above the docking sleeve 2. Lock the bolt into the bolt hole 53 and connect it to the second bolt hole 54 to fix the docking plate 52 on the docking sleeve 2. Then, under the limitation of the fixing block 51, the docking rod 4 will be fixed in the docking sleeve 2, and under the limitation of the fixing block 51, the docking rod 4 cannot move in the docking sleeve 2, thus achieving reinforcement. Then rotate the threaded rod 55. The limiting sleeve 58 limits the top block 57 so that the threaded sleeve 56 cannot rotate. Therefore, when rotating the threaded rod 55, the top block 57 will move upward and press against the end face of the docking rod 4. Under the limitation of the fixing block 51 and the firm pushing of the top block 57, the docking rod 4 will be firmly fixed in the docking sleeve 2 and fixed more tightly, avoiding the problem of easy loosening and the need for frequent maintenance.

[0026] The above are only the preferred examples of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A maintenance-free spring buffer, comprising a mounting plate (1), a docking sleeve (2) mounted on the mounting plate (1), a spring (3) fixed to the mounting plate (1), and a docking rod (4) docked inside the docking sleeve (2), characterized in that: It further includes a fastening structure (5). The fastening structure (5) is provided on the docking sleeve (2). The fastening structure (5) includes a fixing block (51). The fixing block (51) is installed on the docking rod (4). A docking plate (52) is provided at the lower end of the fixing block (51). Bolt holes (53) are provided on the docking plate (52). A second bolt hole (54) is provided on the docking sleeve (2). A threaded rod (55) is provided inside the docking sleeve (2). A threaded sleeve (56) is provided on the threaded rod (55). A top block (57) is provided at the top of the threaded sleeve (56). A limiting sleeve (58) is provided inside the docking sleeve (2).

2. The maintenance-free spring buffer according to claim 1, wherein: The top block (57) is pentagonal. The shape of the limiting sleeve (58) is the same as that of the top block (57), and the top block (57) slides along the inner wall of the limiting sleeve (58).

3. The maintenance-free spring buffer according to claim 1, wherein: At least two docking plates (52) are provided, and they are symmetrically arranged at the lower end of the fixing block (51).

4. The maintenance-free spring buffer according to claim 3, characterized in that: The docking plate (52) is in a "concave" shape. An inner groove (531) is formed on the docking plate (52). The bolt hole (53) is located in the inner groove (531).

5. The maintenance-free spring buffer according to claim 4, characterized in that: A convex portion (501) is provided on the surface of the docking sleeve (2). The number of the convex portions (501) is the same as that of the docking plates (52).

6. The maintenance-free spring buffer according to claim 1, characterized in that: The lower end of the threaded rod (55) does not protrude beyond the bottom end surface of the mounting plate (1).

7. The maintenance-free spring buffer according to claim 1, characterized in that: A top spring (551) is provided inside the docking sleeve (2). One end of the top spring (551) is connected to the top block (57).

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