Anti-loosening fastener group

Abstract

The utility model relates to an anti-loosening fastener group, which belongs to the technical field of fasteners and comprises a bolt head, a fixed anti-loosening mechanism is arranged on the bolt head, the fixed anti-loosening mechanism comprises a bolt body fixedly connected with the bolt head, a nut is sleeved on the outer side of the bolt body in a threaded manner, and the nut is connected with the bolt head in a threaded manner. And two fixing rods are fixedly mounted in the bolt body. According to the anti-loosening fastener set, through the arranged fixed anti-loosening mechanism, when a structure needs to be fixed, under the mutual cooperation of the structures on the bolt head and the bolt body, the anti-loosening fastener set abuts against a nut through an insertion block after rotating and penetrating through the nut; therefore, the bolt body and the nut are prevented from loosening or even falling off in the long-time use process, the use effect of the fastener set is improved, the service life of the fastener set is prolonged, lossless disassembly can be conducted during disassembly, follow-up repeated utilization is facilitated, and the practical performance of the fastening assembly is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, in particular to an anti-loosening fastener group. Background Art

[0002] Fasteners refer to metal or non-metal parts used to connect, fix and close objects. They are widely used in various machinery, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemicals, meters and supplies. They play a role in maintaining the stability and integrity between components. In the field of fastener technology, connection through threaded fasteners is a common mechanical connection method in people's daily production and life. By using it in conjunction with nuts, it can achieve a locking connection between two or more parts.

[0003] At present, a gasket is arranged between the bolt and the connecting piece to increase the contact area and prevent wear of the connection. At the same time, it can also play a certain role in loosening. However, as the use time of this solution continues to increase, the bolt will cause friction due to the vibration during use. The rotation of the bolt is only limited by the friction force of the spring gasket. As the vibration time increases, the distance between the bolt and the spring gasket increases, the friction force is gradually lost, and the anti-loosening effect is lost, resulting in the fixing effect being affected. Therefore, an anti-loosening fastener group is proposed to solve the above technical problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an anti-loosening fastener group, which has the advantages of easy use, simple structure, good fixing effect, etc., and solves the problem that a gasket is currently provided between the bolt and the connecting piece to increase the contact area and prevent wear at the connection, while also having a certain loosening effect. However, as the use time of this solution continues to increase, the bolt will cause friction due to the vibration during use, and the rotation of the bolt is only limited by the friction force of the spring gasket. As the vibration time increases, the distance between the bolt and the spring gasket increases, the friction force is gradually lost, and the anti-loosening effect is lost, resulting in the problem that the fixing effect is affected.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-loosening fastener set, comprising a bolt head, wherein the bolt head is provided with a fixed anti-loosening mechanism;

[0006] The fixed anti-falling mechanism comprises a bolt body fixedly connected to the bolt head, a nut is threadedly sleeved on the outer side of the bolt body, two fixing rods are fixedly installed inside the bolt body, two movable blocks are slidably connected to the outer sides of the two fixing rods, and plug blocks extending to the outer side of the bolt body are fixedly installed on the opposite sides of the two movable blocks;

[0007] A spring is fixedly installed on the opposite side of the two movable blocks, which is sleeved on the outside of the plug block and fixedly connected to the inner wall of the bolt body. A connecting rope is fixedly connected on the opposite side of the two movable blocks. A limit block is fixedly installed in the middle of the left fixed rod. A connecting rod that penetrates the limit block and extends to the inside of the bolt head is fixedly installed on the outside of the connecting rope. A handle located inside the bolt head is fixedly installed on the left side of the connecting rod.

[0008] Furthermore, a thread is formed on the outer side of the bolt body, and a threaded through hole matching the thread is formed on the inner side of the nut.

[0009] Furthermore, a sliding hole is provided inside the movable block, and the movable block is slidably connected to the fixed rod through the sliding hole.

[0010] Furthermore, a first through hole is formed at the top and the bottom of the bolt body, and the insert block extends to the outside of the bolt body through the first through hole.

[0011] Furthermore, a second through hole is opened inside the limiting block, and the connecting rod passes through the limiting block through the second through hole.

[0012] Furthermore, a tightening groove is provided inside the bolt head, and the connecting rod extends through the tightening groove to the inside of the bolt head and is fixedly connected to the handle.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] The anti-loosening fastener group is provided with a fixing anti-falling mechanism. When a fixing operation is required on the structure, the bolt head and the structures on the bolt body cooperate with each other, and after the bolt body and the nut are rotated and penetrated, the insert block is used to achieve abutment with the nut, thereby preventing the bolt body and the nut from loosening or even falling off during long-term use, thereby helping to improve the use effect of the fastener group and extend the service life. The fastener group can also be disassembled without loss during disassembly, which is convenient for subsequent reuse, thereby improving the practical performance of the fastening assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic cross-sectional view of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the front view of the structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model.

[0018] In the figure: 1. bolt head; 2. bolt body; 3. nut; 4. fixing rod; 5. movable block; 6. insert block; 7. spring; 8. connecting rope; 9. limit block; 10. connecting rod; 11. handle. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3 An anti-loosening fastener set in this embodiment includes a bolt head 1, and a fixed anti-loosening mechanism is provided on the bolt head 1.

[0021] See also Figure 1 , Figure 2 and Figure 3 The fixed anti-falling mechanism includes a bolt body 2 fixedly connected to the bolt head 1, a nut 3 is threadedly sleeved on the outer side of the bolt body 2, a thread is provided on the outer side of the bolt body 2, and a threaded through hole matching the thread is provided inside the nut 3, so that the bolt body 2 can be assembled conveniently through the threaded through hole inside the nut 3, thereby fixing the object to be fastened.

[0022] Among them, two fixed rods 4 are fixedly installed inside the bolt body 2, and two movable blocks 5 are slidably connected to the outside of the two fixed rods 4. Sliding holes are opened inside the movable blocks 5, and the movable blocks 5 are slidably connected to the fixed rods 4 through the sliding holes, so that the movable blocks 5 can be limited when sliding on the outside of the fixed rods 4 through the sliding holes, so that the movable blocks 5 can move stably inside the bolt body 2.

[0023] Among them, the two movable blocks 5 are fixedly installed with insert blocks 6 extending to the outside of the bolt body 2 on the opposite sides. The top and bottom of the bolt body 2 are opened with a first through hole, and the insert block 6 extends to the outside of the bolt body 2 through the first through hole, so that the insert block 6 extends to the outside of the bolt body 2 through the first through hole to form abutment with the nut 3 after assembly, thereby avoiding loosening after fixation.

[0024] Among them, the two movable blocks 5 are fixedly installed on the opposite sides with springs 7 that are sleeved on the outside of the plug block 6 and fixedly connected to the inner wall of the bolt body 2, and the two movable blocks 5 are fixedly connected on the opposite sides with connecting ropes 8. A limiting block 9 is fixedly installed in the middle of the left fixed rod 4, and a connecting rod 10 that penetrates the limiting block 9 and extends to the inside of the bolt head 1 is fixedly installed on the outside of the connecting rope 8.

[0025] Among them, a second through hole is opened inside the limit block 9, and the connecting rod 10 passes through the second through hole to pass through the limit block 9, so that the position of the connecting rod 10 can be limited by the second through hole, so that the connecting rod 10 can maintain a horizontal and stable state when pulled, and a handle 11 located inside the bolt head 1 is fixedly installed on the left side of the connecting rod 10, and a tightening groove is opened inside the bolt head 1. The connecting rod 10 extends to the inside of the bolt head 1 through the tightening groove and is fixedly connected to the handle 11, which is convenient for the staff to rotationally connect and fix the bolt body 2 and the nut 3 through the tightening groove, and when the bolt body 2 and the nut 3 need to be disassembled, they can be disassembled without damage by pulling the handle 11, so as to facilitate subsequent reuse.

[0026] It should be noted that the anti-loosening fastener group, through the set anti-falling mechanism, when it is necessary to fix the structure, with the cooperation between the various structures on the bolt head 1 and the bolt body 2, the insert block 6 is used to achieve abutment with the nut 3 after the nut 3 is rotated and penetrated, thereby preventing the bolt body 2 and the nut 3 from loosening or even falling off during long-term use, thereby helping to improve the use effect of the fastener group and extend its service life, and it can also be disassembled without loss during disassembly, which is convenient for subsequent reuse, thereby improving the practical performance of the fastening assembly.

[0027] The working principle of the above embodiment is:

[0028] When using the anti-loosening fastener group, the bolt body 2 is first passed through the object to be fixed and is sleeved with the nut 3. Then, the bolt head 1 is rotated by a tightening tool to drive the bolt body 2 to rotate. While rotating, the insert block 6 contacts the nut 3 and gradually retracts into the bolt body 2 as the rotation continues, thereby realizing the docking installation of the nut 3 and the bolt body 2. After the insert block 6 passes through the nut 3, the movable block 5 inside the bolt body 2 drives the insert block 6 to re-extend to the outside of the bolt body 2 under the pull of the spring 7, thereby achieving abutment with the nut 3 to avoid loosening or coming loose when vibration occurs. When it needs to be removed later, the handle 11 is pulled to drive the connecting rod 10 to pull the connecting rope 8, and the connecting rope 8 pulls the movable block 5 to retract the insert block 6, thereby removing the nut 3 and the bolt body 2.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-loosening fastener assembly, comprising a bolt head (1), characterized in that: The bolt head (1) is provided with a fixing anti-falling mechanism; The fixed anti-falling mechanism comprises a bolt body (2) fixedly connected to the bolt head (1); a nut (3) is threadedly sleeved on the outer side of the bolt body (2); two fixing rods (4) are fixedly installed inside the bolt body (2); two movable blocks (5) are slidably connected to the outer sides of the two fixing rods (4); and plug blocks (6) extending to the outer side of the bolt body (2) are fixedly installed on the opposite sides of the two movable blocks (5); A spring (7) which is sleeved on the outside of the plug block (6) and fixedly connected to the inner wall of the bolt body (2) is fixedly installed on the opposite side of the two movable blocks (5); a connecting rope (8) is fixedly connected to the opposite side of the two movable blocks (5); a limit block (9) is fixedly installed in the middle of the left fixed rod (4); a connecting rod (10) which penetrates the limit block (9) and extends to the inside of the bolt head (1) is fixedly installed on the outside of the connecting rope (8); and a handle (11) located inside the bolt head (1) is fixedly installed on the left side of the connecting rod (10).

2. The anti-loosening fastener assembly according to claim 1, characterized in that: The outer side of the bolt body (2) is provided with a thread, and the inner side of the nut (3) is provided with a threaded through hole matching the threaded through hole.

3. The anti-loosening fastener assembly according to claim 1, characterized in that: A sliding hole is provided inside the movable block (5), and the movable block (5) is slidably connected to the fixed rod (4) via the sliding hole.

4. The anti-loosening fastener assembly according to claim 1, characterized in that: The top and bottom of the bolt body (2) are both provided with a first through hole, and the insert block (6) extends to the outside of the bolt body (2) through the first through hole.

5. The anti-loosening fastener assembly according to claim 1, characterized in that: A second through hole is provided inside the limiting block (9), and the connecting rod (10) passes through the limiting block (9) through the second through hole.

6. The anti-loosening fastener assembly according to claim 1, characterized in that: A tightening groove is provided inside the bolt head (1), and the connecting rod (10) extends through the tightening groove to the inside of the bolt head (1) and is fixedly connected to the handle (11).

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