Fastener structure with self-locking function

Abstract

The utility model provides a fastener structure with a self-locking function, which comprises a fastening plate, one side of the fastening plate is movably connected with a fastening bolt, and one side of the fastening bolt is fixedly connected with a threaded rod; a sliding frame is pushed to move to synchronously drive a limiting inner plate to move, at the moment, the moved limiting inner plate enters the inner side of a limiting groove to be clamped, a top sleeving threaded disc is limited, the fastening performance of the top sleeving threaded disc after fastening of a fastening plate is improved, and the service life of the top sleeving threaded disc is prolonged. And the situation that the top cup joint threaded disc loosens on the surface of the threaded rod to generate spiral displacement is reduced, and the fastening performance of the top cup joint threaded disc is improved. After the two top limiting plates are moved to the inner side of the limiting groove, the bottom sleeving threaded disc is rotated at the moment, the top limiting plates are always kept sliding along the inner side of the limiting groove, after the top limiting plates are moved to one side of the side limiting box to make contact with the side limiting box, the top limiting plates are used for limiting the side limiting box, and the self-locking performance of the top sleeving threaded disc is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fastener structures, and more specifically, relates to a fastener structure with a self-locking function. Background Art

[0002] A fastener structure refers to a device used to connect or fix two or more components. Its design usually includes parts such as threads, heads, and stems to provide the necessary clamping and holding forces. Fasteners are widely used in various machines, equipment, and structures to ensure a firm connection between components. Fasteners with self-locking function are special fasteners. In addition to the connection function of ordinary fasteners, they can also prevent loosening under external conditions such as vibration, impact, or temperature changes.

[0003] In the prior art, the authorized publication number "CN220769911U" discloses a "fastener with a self-locking function" comprising a fixed plate, a first fixing plate, a self-locking bolt unit, and a nut fixing unit; the first fixing plate is provided on the right side of the fixed plate; the self-locking bolt unit comprises a stud, a C-locking block groove, a rotating shaft, a locking block, a spring base, and a spring. The left end of the stud passes through through-holes in the middle of the fixed plate and the first fixing plate, and a C-locking block groove is provided within the stud. The two left corners of the C-locking block groove are movably connected to the left ends of the two locking blocks via two rotating shafts. This self-locking fastener reduces the size of the fastener by incorporating a self-locking structure into the bolt. Furthermore, both the self-locking and unlocking processes require minimal operation. By providing a nut fixing unit, the distance between the self-locking structure and the fixed plate can be adjusted according to the thickness of nuts of different specifications.

[0004] The self-locking structure in the above-mentioned technical solution is relatively cumbersome, taking up a lot of space during the self-locking process, increasing the size of the fastener, and having low practicality. Furthermore, the fastener may loosen in the spiral direction after self-locking, requiring regular tightening, which is quite cumbersome. Therefore, our company has proposed a fastener structure with a self-locking function to solve the above-mentioned problems. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the present invention provides a fastener structure with a self-locking function to solve the problems raised in the above background technology that the existing self-locking structure is relatively cumbersome, occupies more space during the self-locking process, increases the volume of the fastener, and has low practicality. At the same time, the fastener will loosen in the spiral direction after self-locking, and needs to be tightened regularly, which is relatively cumbersome.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A fastener structure with a self-locking function includes a fastening plate, one side of the fastening plate is movably connected to a fastening bolt, one side of the fastening bolt is fixedly connected to a threaded rod, the surface of the threaded rod is threadedly connected to a top sleeve threaded disk, one side of the top sleeve threaded disk is fixedly connected to a limiting pad, and one side of the limiting pad is fixedly connected to a buffer pad.

[0008] As a preference of this embodiment, a limiting groove is provided on the surface of the threaded rod, and a side limiting box is fixedly connected to one side of the top sleeve threaded disk.

[0009] As a preference of this embodiment, a connecting spring is fixedly connected to the inner side of the side limit box, one side of the connecting spring is fixedly connected to a sliding frame, and one side of the sliding frame is fixedly connected to a limiting inner plate.

[0010] As a preference of this embodiment, an inner sliding rail is provided on the inner side of the side limit box, and a sliding side plate is slidably connected to the inner side of the inner sliding rail.

[0011] As a preference of this embodiment, the number of the sliding side plates is two, and one side of the two sliding side plates is fixedly connected to two sides of the sliding frame.

[0012] As a preference of this embodiment, a gripping rod is fixedly connected to one side of the sliding frame, and one side of the gripping rod is arranged perpendicular to one side of the sliding frame.

[0013] As a preference of this embodiment, the surface of the threaded rod is threadedly connected to a bottom sleeve threaded disk, and a top limiting plate is provided on the top of the bottom sleeve threaded disk.

[0014] As a preference of this embodiment, the bottom of the top limit plate is fixedly connected to a top sliding block, the surface of the bottom sleeve threaded disk is fixedly connected to an annular slide rail, and the bottom of the top sliding block is slidably connected to the surface of the annular slide rail.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) The utility model rotates the side limit box to one side of the limit groove by continuously rotating the top sleeve threaded disk. At this time, the connecting spring will push the sliding frame to move along the inner side of the side limit box after losing the limit, and the stability of the horizontal movement of the sliding frame is improved by sliding the sliding side plate and the inner sliding rail. By pushing the sliding frame to move, the limit inner plate will be driven to move synchronously. At this time, the moved limit inner plate will enter the inner side of the limit groove and engage with the top sleeve threaded disk, thereby limiting the top sleeve threaded disk, improving the tightness of the top sleeve threaded disk after tightening the fastening plate, reducing the situation where the top sleeve threaded disk is loose on the surface of the threaded rod and causing spiral displacement, and improving the tightness of the top sleeve threaded disk;

[0017] (2) The utility model can improve the stability of the top limit plate moving along the surface of the bottom sleeve threaded disk by sliding the top sliding block along the surface of the annular slide rail. After the two top limit plates are moved to the inner side of the limit groove, the bottom sleeve threaded disk is rotated to always keep the top limit plate sliding along the inner side of the limit groove. After the top limit plate is moved to one side of the side limit box and contacts it, the side limit box is limited by the top limit plate, thereby improving the self-locking property of the top sleeve threaded disk. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the limit groove structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the side limit box structure of the present utility model;

[0022] Figure 4 This is a schematic diagram of the inner sliding rail structure of the utility model;

[0023] Figure 5 This is a schematic diagram of the top sliding block structure of the utility model;

[0024] Explanation of the numbers in the figure: 1. Fastening plate; 2. Fastening bolt; 3. Threaded rod; 401. Limiting groove; 402. Top sleeve threaded disk; 403. Limiting cushion; 404. Buffer pad; 405. Side limit box; 406. Connecting spring; 407. Inner sliding rail; 408. Sliding frame; 409. Sliding side plate; 4010. Grip; 4011. Limiting inner plate; 501. Bottom sleeve threaded disk; 502. Annular slide rail; 503. Top sliding block; 504. Top limit plate. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts are within the scope of protection of the present invention.

[0026] See also Figures 1 to 4As shown, the embodiment of the present invention provides a fastener structure with a self-locking function, specifically comprising a fastening plate 1, a fastening bolt 2 movably connected to one side of the fastening plate 1, a threaded rod 3 fixedly connected to one side of the fastening bolt 2, a top sleeve threaded disk 402 threadedly connected to the surface of the threaded rod 3, a limiter pad 403 fixedly connected to one side of the top sleeve threaded disk 402, and a buffer pad 404 fixedly connected to one side of the limiter pad 403. In this embodiment, after the top sleeve threaded disk 402 is rotated, it moves along the surface of the threaded rod 3 and cooperates with the fastening bolt 2 to tighten the fastening plate 1. During the tightening process, the limiter pad 403 is in contact with one side of the fastening plate 1, reducing the gap in the connection. The buffer pad 404 improves the cushioning performance after tightening and reduces the occurrence of loosening.

[0027] See also Figures 1 to 4 As shown, a limiting groove 401 is provided on the surface of the threaded rod 3, and a side limiting box 405 is fixedly connected to one side of the top sleeve threaded disc 402. A connecting spring 406 is fixedly connected to the inner side of the side limiting box 405. A sliding frame 408 is fixedly connected to one side of the connecting spring 406. One side of the sliding frame 408 is fixedly connected to a limiting inner plate 4011. Pushing the sliding frame 408 to move will simultaneously drive the limiting inner plate 4011 to move. At this time, the moved limiting inner plate 4011 will enter the inner side of the limiting groove 401 and engage with the top sleeve threaded disc 402, thereby limiting the position of the top sleeve threaded disc 402. This improves the tightness of the top sleeve threaded disc 402 after being tightened to the fastening plate 1, reduces the possibility of the top sleeve threaded disc 402 loosening and spiral displacement on the surface of the threaded rod 3, and improves the tightness of the top sleeve threaded disc 402.

[0028] See also Figures 1 to 4 As shown, an inner sliding rail 407 is formed on the inner side of the side limit box 405. A sliding side plate 409 is slidably connected to the inner side of the inner sliding rail 407. There are two sliding side plates 409, one side of each sliding side plate 409 being fixedly connected to the opposite sides of the sliding frame 408. In this embodiment, after the connecting spring 406 loses its restraint, it pushes the sliding frame 408 to move along the inner side of the side limit box 405. The sliding movement of the sliding side plates 409 and the inner sliding rail 407 improves the stability of the horizontal movement of the sliding frame 408.

[0029] See also Figures 1 to 4 As shown, a gripping rod 4010 is fixedly connected to one side of the sliding frame 408, and one side of the gripping rod 4010 is arranged perpendicular to one side of the sliding frame 408. After gripping the gripping rod 4010, the sliding frame 408 is pulled. The sliding side plate 409 and the inner sliding rail 407 slide together, causing the sliding frame 408 to slide along the inner side of the side limit box 405. During the sliding process, the connecting spring 406 is compressed, and the limit inner plate 4011 is driven out of the inner side of the limit slot 401. At this time, the threaded disc 402 can be normally rotated along the surface of the threaded rod 3 to be sleeved.

[0030] See also Figure 1 and Figure 5 As shown, the surface of the threaded rod 3 is threadedly connected to a bottom sleeve threaded disk 501, and a top limit plate 504 is provided on the top of the bottom sleeve threaded disk 501. By rotating the bottom sleeve threaded disk 501, the top limit plate 504 is always kept sliding along the inner side of the limit groove 401. After the top limit plate 504 is moved to one side of the side limit box 405 and contacts it, the top limit plate 504 is used to limit the side limit box 405, thereby improving the self-locking property of the top sleeve threaded disk 402. The bottom of the top limit plate 504 is fixedly connected to a top sliding block 503, and the surface of the bottom sleeve threaded disk 501 is fixedly connected to an annular slide rail 502. The bottom of the top sliding block 503 is slidably connected to the surface of the annular slide rail 502. By sliding the top sliding block 503 along the surface of the annular slide rail 502, the stability of the top limit plate 504 moving along the surface of the bottom sleeve threaded disk 501 can be improved.

[0031] The specific usage and function of this embodiment: When in use, first pass the fastening bolt 2 through one side of the fastening plate 1, then rotate the top sleeve threaded disk 402 along the surface of the threaded rod 3, and connect it with the threaded rod 3 through the top sleeve threaded disk 402. After rotating the top sleeve threaded disk 402, it will move along the surface of the threaded rod 3 and cooperate with the fastening bolt 2 to tighten the fastening plate 1. During the tightening process, the limiting cushion 403 is used to fit with one side of the fastening plate 1, which reduces the gap in the connection, and the buffering pad 404 is used to improve the buffering performance after tightening, thereby reducing the occurrence of loosening. By continuously rotating the top sleeve threaded disk 402, the side limit box 405 is rotated to the limit groove 401. On one side, at this time, after the connecting spring 406 loses its limit, it will push the sliding frame 408 to move along the inner side of the side limit box 405, and through the sliding of the sliding side plate 409 and the inner sliding rail 407, the stability of the horizontal movement of the sliding frame 408 is improved. By pushing the sliding frame 408 to move, the limiting inner plate 4011 will be driven to move synchronously. At this time, the moved limiting inner plate 4011 will enter the inner side of the limiting groove 401 and engage, limiting the top sleeve threaded disk 402, thereby improving the tightness of the top sleeve threaded disk 402 after tightening the fastening plate 1, reducing the loosening and spiral displacement of the top sleeve threaded disk 402 on the surface of the threaded rod 3, and improving the tightness of the top sleeve threaded disk 402.

[0032] At the same time, when it is necessary to remove the top sleeve threaded disk 402, first hold the grip rod 4010 and then pull the sliding frame 408. Through the sliding of the sliding side plate 409 and the inner sliding rail 407, the sliding frame 408 will slide along the inner side of the side limit box 405. During the sliding process, the connecting spring 406 will be compressed and the limiting inner plate 4011 will be driven to move out of the inner side of the limiting groove 401. At this time, the top sleeve threaded disk 402 can be rotated normally along the surface of the threaded rod 3.

[0033] After the top sleeve threaded disk 402 is rotated to one side of the fastening plate 1 for tightening, the bottom sleeve threaded disk 501 is rotated along the surface of the threaded rod 3. Through the threaded connection between the bottom sleeve threaded disk 501 and the threaded rod 3, the bottom sleeve threaded disk 501 will move horizontally along the surface of the threaded rod 3 after rotation. Before the bottom sleeve threaded disk 501 is threadedly connected to the threaded rod 3, the top limit plate 504 is first moved along one side of the bottom sleeve threaded disk 501 to adjust the position, and the top sliding block 503 is used to move along the annular slide rail. The sliding of the surface 502 can improve the stability of the top limit plate 504 moving along the surface of the bottom sleeve threaded disk 501. By moving the two top limit plates 504 to the inner side of the limit groove 401, the bottom sleeve threaded disk 501 is rotated at this time to always keep the top limit plate 504 sliding along the inner side of the limit groove 401. By moving the top limit plate 504 to one side of the side limit box 405 and contacting it, the top limit plate 504 is used to limit the side limit box 405, thereby improving the self-locking property of the top sleeve threaded disk 402.

[0034] The contents not described in detail in this specification belong to the prior art known to professionals in this field, and are not the key to the present utility model, so they will not be elaborated on again.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the scope of protection of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A fastener structure with a self-locking function, comprising a fastening plate (1), characterized in that: One side of the fastening plate (1) is movably connected to a fastening bolt (2), one side of the fastening bolt (2) is fixedly connected to a threaded rod (3), the surface of the threaded rod (3) is threadedly connected to a top sleeve threaded disk (402), one side of the top sleeve threaded disk (402) is fixedly connected to a limiting soft pad (403), and one side of the limiting soft pad (403) is fixedly connected to a buffer pad (404).

2. The fastener structure with self-locking function according to claim 1, characterized in that: A limiting groove (401) is provided on the surface of the threaded rod (3), and a side limiting box (405) is fixedly connected to one side of the top sleeve threaded disc (402).

3. The fastener structure with self-locking function according to claim 2, characterized in that: The inner side of the side limit box (405) is fixedly connected to a connecting spring (406), one side of the connecting spring (406) is fixedly connected to a sliding frame (408), and one side of the sliding frame (408) is fixedly connected to a limiting inner plate (4011).

4. The fastener structure with self-locking function according to claim 3, characterized in that: An inner sliding rail (407) is provided on the inner side of the side limit box (405), and a sliding side plate (409) is slidably connected to the inner side of the inner sliding rail (407).

5. The fastener structure with self-locking function according to claim 4, characterized in that: There are two sliding side plates (409), and one side of each of the two sliding side plates (409) is fixedly connected to both sides of the sliding frame (408).

6. The fastener structure with self-locking function according to claim 3, characterized in that: One side of the sliding frame (408) is fixedly connected to a gripping rod (4010), and one side of the gripping rod (4010) is arranged perpendicular to one side of the sliding frame (408).

7. The fastener structure with self-locking function according to claim 1, characterized in that: The surface of the threaded rod (3) is threadedly connected to a bottom sleeve threaded disc (501), and a top limiting plate (504) is provided on the top of the bottom sleeve threaded disc (501).

8. The fastener structure with self-locking function according to claim 7, characterized in that: The bottom of the top limiting plate (504) is fixedly connected to a top sliding block (503), the surface of the bottom sleeve threaded disk (501) is fixedly connected to an annular slide rail (502), and the bottom of the top sliding block (503) is slidably connected to the surface of the annular slide rail (502).

Images