A plug type anti-loose flange bolt

CN224706111UActive Publication Date: 2026-09-01WENZHOU XINYANG STANDARD PARTS CO LTD
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Patent Information

Application Number
CN202522339161.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-04
Publication Date
2026-09-01
Estimated Expiration
2035-11-04

AI Technical Summary

Technical Problem

[0004]本实用新型提出一种插片式防松动法兰螺栓,解决了现有技术中使用过程中存在的上述问题

Benefits of technology

1、本实用新型采用在螺栓内设卡块卡住被连接件的机械防松结构设计,当螺栓与被连接件连接时卡块伸出卡在被连接件上,实现螺栓与被连接件的机械咬合防松,降低螺栓在实际的使用中出现松动的机率,从而提高螺栓安装的牢固性和稳定性,为用户的工作使用提供便捷。

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Abstract

The utility model discloses a kind of inserted sheet type anti-loose flange bolt, including bolt main body, the inside of bolt main body is equipped with movable slot one, the inside of movable slot one is equipped with movable slot two on one side, the inside of movable slot one is equipped with thread groove on the side away from movable slot two, the inside of movable slot one is fixedly connected with baffle on one side, the inside of movable slot one is slidably installed with push rod, the inside of baffle is located push rod, the inside of thread groove is threadedly connected with the inserted block compatible with push rod, the utility model is equipped with the mechanical anti-loose structure design of the card block in bolt inside and is connected with the mechanical anti-loose structure design of the card block in bolt inside, when bolt is connected with connected component, card block extends and is connected on connected component, realize the mechanical anti-loose structure design of bolt and connected component, reduce the probability that bolt appears loose in actual use, to improve the firmness and stability of bolt installation, provide convenience for user's work use.
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Description

Technical Field

[0001] This utility model relates to the field of flange bolt technology, and in particular to a insert-type anti-loosening flange bolt. Background Technology

[0002] Flange bolts are integral bolts consisting of a hexagonal head, a flange (a gasket that is fixed to the hexagonal head), and a threaded rod (a cylinder with external threads). However, in actual use, we have found that traditional flange bolts are prone to loosening, especially in working environments that are prone to vibration. The vibration force generated by the equipment continuously acts on the bolt, causing it to loosen. This leads to an increase in the gap between the connected parts, affecting the working stability of the equipment and posing safety hazards.

[0003] To address the aforementioned problems, this utility model provides improvements. Summary of the Invention

[0004] This utility model proposes an insert-type anti-loosening flange bolt, which solves the above-mentioned problems existing in the use of the prior art.

[0005] The technical solution of this utility model is implemented as follows: A insert-type anti-loosening flange bolt includes a bolt body, an inner movable groove 1 is provided inside the bolt body, a second movable groove is provided on one side of the inner cavity of the first movable groove, a threaded groove is provided on the side of the inner cavity of the first movable groove away from the second movable groove, a baffle is fixedly connected to one side of the inner cavity of the first movable groove, a push rod is slidably installed in the inner cavity of the first movable groove, the baffle is located inside the push rod, an insert block adapted to the push rod is threadedly connected to the inner side of the threaded groove, a locking block adapted to the push rod is slidably installed in the inner cavity of the second movable groove, an adaptation hole adapted to the push rod is provided on one side of the locking block, and an inclined surface is provided on one side of the inner cavity of the adaptation hole.

[0006] The present invention, as described above, is used for insert-type anti-loosening flange bolts. Further, one end of the push rod is integrally formed with a push block that is adapted to the inclined surface and the adapter hole.

[0007] The present invention, as described above, for insert-type anti-loosening flange bolts, further comprises: a return spring fixedly connected to the inner side of the push rod, one end of which is fixedly connected to the baffle plate. The present invention, as described above, is used for insert-type anti-loosening flange bolts. Further, one end of the locking block is fixedly connected to a plurality of return springs, and the end of the return springs away from the locking block is fixedly connected to the inner wall of the movable groove.

[0008] The present invention further comprises, as described above, a flange integrally formed on the surface of the bolt body for use with insert-type anti-loosening flange bolts.

[0009] The present invention provides a further embodiment of the insert-type anti-loosening flange bolt as described above: the bolt body includes a screw and a hexagonal head, wherein the screw and the hexagonal head are integrally formed and connected together.

[0010] The present invention, as described above, is used for insert-type anti-loosening flange bolts. Further, the movable groove and the push rod are both formed on the screw, a portion of the inner cavity of the push rod is formed on the hexagonal head, and the threaded groove is formed on the hexagonal head.

[0011] In summary, the beneficial effects of this utility model are as follows: 1. This utility model adopts a mechanical anti-loosening structure design with a locking block inside the bolt to lock the connected parts. When the bolt is connected to the connected parts, the locking block extends and locks onto the connected parts, realizing mechanical engagement between the bolt and the connected parts to prevent loosening. This reduces the probability of the bolt loosening in actual use, thereby improving the firmness and stability of the bolt installation and providing convenience for users' work.

[0012] 2. This utility model features a push block that is integrally molded with the push rod, meaning the push rod and push block can be considered as a single component. When installing the bolt, the push rod drives the push block into the movable groove two and inserts it into the matching hole on the locking block. Simultaneously, the push block engages with the inclined surface in the matching hole, thereby pushing the locking block to slide within the movable groove two. Furthermore, the locking block slides outward from the bolt. In this way, even if the locking block is located within the connected component, the user can flexibly operate and control the locking block to smoothly enter and exit the movable groove two to complete the bolt installation, providing convenience and assistance for the user's work.

[0013] 3. With the setting of reset spring one and reset spring two, when disassembling the bolt, reset spring one will push the push rod to reset and move out of the locking block. In this way, the locking block can retract into the movable groove two under the action of reset spring two and detach from the connected parts. Therefore, with the cooperation of reset spring one and reset spring two, the push rod and the locking block can be quickly reset, and then the bolt can be disassembled, providing convenience and assistance for users to disassemble working bolts.

[0014] 4. By incorporating a flange, this utility model increases the contact area between the bolts and the connected parts, thereby improving the stability and sealing of the connection.

[0015] 5. This utility model, through the setting of screw and hexagonal head, uses the screw to connect the connected parts together when using bolts, thereby fixing multiple connected parts together. The hexagonal head is hexagonal, and the user can use tools to turn the hexagonal head to drive the screw to rotate for disassembly and assembly, improving the efficiency of bolt disassembly and assembly, and providing convenience and assistance for the user's work. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a three-dimensional sectional view of the present invention; Figure 3 This is an exploded cross-sectional view of the three-dimensional structure of this utility model; Figure 4 This is a cross-sectional view of the three-dimensional structure of the card block.

[0018] In the diagram: 1. Movable groove one, 2. Movable groove two, 3. Threaded groove, 4. Baffle, 5. Push rod, 6. Insert block, 7. Locking block, 8. Inclined surface, 9. Adaptor hole, 10. Push block, 11. Return spring one, 12. Return spring two, 13. Screw, 14. Hexagonal head, 15. Flange. Detailed Implementation

[0019] The following will refer to the appendix in the embodiments of this utility model. Figure 1-4 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Example

[0020] A insert-type anti-loosening flange bolt includes a bolt body with a movable groove 1 inside. A movable groove 2 is formed on one side of the inner cavity of the movable groove 1. A threaded groove 3 is formed on the side of the inner cavity of the movable groove 1 away from the movable groove 2. A baffle 4 is fixedly connected to one side of the inner cavity of the movable groove 1. A push rod 5 is slidably installed in the inner cavity of the movable groove 1. The baffle 4 is located inside the push rod 5. A plug 6 adapted to the push rod 5 is threadedly connected to the inner side of the threaded groove 3. A locking block 7 adapted to the push rod 5 is slidably installed in the inner cavity of the movable groove 2. An adapter hole 9 adapted to the push rod 5 is formed on one side of the locking block 7. An inclined surface 8 is provided on one side of the inner cavity of the adapter hole 9.

[0021] This utility model adopts a mechanical anti-loosening structure design with a locking block inside the bolt to lock the connected parts. When the bolt is connected to the connected parts, the locking block extends and locks onto the connected parts, realizing mechanical engagement between the bolt and the connected parts to prevent loosening. This reduces the probability of the bolt loosening in actual use, thereby improving the firmness and stability of the bolt installation and providing convenience for users' work.

[0022] The specific usage process is as follows: After the bolts are tightened and fixed, insert the insert 6 into the threaded groove 3 from one side of the bolts, and tighten the insert 6 to fix it in the threaded groove 3. The insert 6 and the threaded groove 3 are threadedly connected, so the insert 6 will move in the threaded groove 3 during installation. During the movement of the insert 6, it will squeeze and push the push rod 5 towards the locking block 7 to slide in the movable groove 1. At the same time, the push rod 5 will squeeze the return spring 11 fixed on the baffle 4. Then, the push rod 5 will drive the push block 10 into the movable groove 2 and insert it into the adapter hole 9 on the locking block 7. At the same time, the push block 10 cooperates with the inclined surface 8 in the adapter hole 9 to push the locking block 7 to slide in the movable groove 2. Furthermore, the locking block 7 slides outwards from the bolt, simultaneously stretching the return spring 12 until the end of the push block 10 abuts against the inner wall of the movable groove 2. At this point, the locking block 7 stops moving, and the end of the locking block 7 moves out of the inner cavity of the movable groove 2 and locks onto the connected part. It should be noted that under the restriction of the locking block 7, the bolt cannot move linearly. The linear movement of the bolt requires rotation under the engagement of internal and external threads. Therefore, when the bolt cannot move linearly, it can no longer rotate, thus firmly fixing it to the connected part. This prevents the bolt from loosening even in a vibrating working environment, achieving mechanical engagement and anti-loosening with the connected part. Adaptable to most harsh and complex operating environments, providing convenience for users' work, during disassembly, the insert 6 is removed from the threaded groove 3. Without the restriction of the insert 6, the push rod 5 will reset under the action of the return spring 11, causing the push block 10 to leave the movable groove 2 and the adapter hole 9, and disengage from the locking block 7. Simultaneously, the locking block 7 will retract into the movable groove 2 under the action of the return spring 12, disengaging from the connected component. At this point, the bolt is no longer restricted by the straight direction and can be rotated to remove it from the connected component. The push block 10 also features an inclined surface that matches the inclined surface 8, thus allowing the locking block to be moved by the push block 10. 7 slides flexibly within the movable slot 2, allowing the locking block 7 to extend and retract freely and flexibly. It should be noted that the end of the insert block 6 adopts an internal hexagonal groove design, so an internal hexagonal tool can be used when installing and removing the insert block 6, making the user's assembly and disassembly work more labor-saving and convenient. Therefore, a mechanical anti-loosening structure design is adopted, in which a locking block is set inside the bolt to lock the connected parts. When the bolt is connected to the connected parts, the locking block extends and locks onto the connected parts, realizing the mechanical engagement and anti-loosening of the bolt and the connected parts, reducing the probability of the bolt loosening in actual use, thereby improving the firmness and stability of the bolt installation, and providing convenience for the user's work.

[0023] One end of the push rod 5 is integrally formed and connected to a push block 10 that is adapted to the inclined surface 8 and the adapter hole 9.

[0024] Specifically, the push block 10 and the push rod 5 are designed as a single piece. In other words, the push rod 5 and the push block 10 can be considered as one component. When installing the bolt, the push rod 5 drives the push block 10 into the movable groove 2 and inserts it into the adapter hole 9 on the locking block 7. At the same time, the push block 10 cooperates with the inclined surface 8 in the adapter hole 9 to push the locking block 7 to slide in the movable groove 2. The locking block 7 slides outward from the bolt. In this way, even if the locking block 7 is located inside the connected part, the user can flexibly operate and control the locking block 7 to smoothly enter and exit the movable groove 2 to complete the bolt installation, providing convenience and assistance for the user's work.

[0025] A return spring 11 is fixedly connected to the inner side of the push rod 5, and one end of the return spring 11 is fixedly connected to the baffle 4. One end of the locking block 7 is fixedly connected to a plurality of reset springs 12, and the end of the reset springs 12 away from the locking block 7 is fixedly connected to the inner wall of the movable groove 2.

[0026] Specifically, the reset spring 11 and reset spring 212 are designed so that when the bolt is disassembled, the reset spring 11 will push the push rod 5 to reset and move out of the locking block 7. In this way, the locking block 7 can retract into the movable groove 2 under the action of the reset spring 212 and disassemble from the connected part. Therefore, with the cooperation of the reset spring 11 and reset spring 212, the push rod 5 and the locking block 7 can be quickly reset, and then the bolt can be disassembled, providing convenience and assistance for the user's bolt disassembly work.

[0027] The bolt body has an integrally formed flange 15 on its surface.

[0028] Specifically, the flange 15 increases the contact area between the bolts and the connected parts, improving the stability and sealing of the connection.

[0029] The bolt body includes a screw 13 and a hexagonal head 14, which are integrally formed and connected together. The movable groove 2 and the push rod 5 are both formed on the screw 13. A portion of the inner cavity of the push rod 5 is formed on the hexagonal head 14, and the threaded groove 3 is formed on the hexagonal head 14.

[0030] Specifically, the screw 13 and hexagonal head 14 are designed so that when using bolts, the screw 13 is used to connect the connected parts together, thereby fixing multiple connected parts together. The hexagonal head 14 is hexagonal, and users can use tools to turn the hexagonal head 14 to drive the screw 13 to rotate for disassembly and assembly, improving the efficiency of bolt disassembly and assembly, and providing convenience and assistance for users' work.

[0031] It should be noted that the functions to be achieved by each hardware component in this utility model are supported by a large number of mature technologies and belong to the prior art. The essence of this utility model is to optimize and combine existing hardware and its connection methods for specific application scenarios to meet the adaptation requirements of specific application scenarios and solve the problems raised in the background technology (without involving improvements to the internal software of the hardware).

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pin style anti-loose flange bolt comprising a bolt body, characterized by: The bolt body has an internal movable groove 1 (1), and a movable groove 2 (2) is provided on one side of the inner cavity of the movable groove 1 (1). A threaded groove (3) is provided on the side of the inner cavity of the movable groove 1 (1) away from the movable groove 2 (2). A baffle (4) is fixedly connected to one side of the inner cavity of the movable groove 1 (1). A push rod (5) is slidably installed in the inner cavity of the movable groove 1 (1). The baffle (4) is located inside the push rod (5). A plug (6) that matches the push rod (5) is threadedly connected to the inner side of the threaded groove (3). A locking block (7) that matches the push rod (5) is slidably installed in the inner cavity of the movable groove 2 (2). A matching hole (9) that matches the push rod (5) is provided on one side of the locking block (7). An inclined surface (8) is provided on one side of the inner cavity of the matching hole (9).

2. A plug type anti-loose flange bolt according to claim 1, characterized in that: One end of the push rod (5) is integrally formed and connected to a push block (10) that is compatible with the inclined surface (8) and the adapter hole (9).

3. The insert-type anti-loosening flange bolt according to claim 2, characterized in that: A reset spring (11) is fixedly connected to the inner side of the push rod (5), and one end of the reset spring (11) is fixedly connected to the baffle (4).

4. The insert-type anti-loosening flange bolt according to claim 3, characterized in that: One end of the card block (7) is fixedly connected to a plurality of reset springs (12), and the end of the reset springs (12) away from the card block (7) is fixedly connected to the inner wall of the movable groove (2).

5. The insert-type anti-loosening flange bolt according to claim 4, characterized in that: The bolt body has an integrally formed flange (15) on its surface.

6. The insert-type anti-loosening flange bolt according to claim 5, characterized in that: The bolt body includes a screw (13) and a hexagonal head (14), which are integrally formed and connected together.

7. The insert-type anti-loosening flange bolt according to claim 6, characterized in that: The movable groove (2) and the push rod (5) are both opened on the screw (13). A portion of the inner cavity of the push rod (5) is opened on the hexagonal head (14), and the threaded groove (3) is opened on the hexagonal head (14).