High-strength bolt connecting structure with locking device

Abstract

The utility model relates to the technical field of bolt connection reinforcing devices, and particularly discloses a high-strength bolt connection structure with an anti-loosening device, which comprises a first anti-loosening plate and a second anti-loosening plate which are respectively positioned on two sides of a pair of flange plates; the first limiting component is mounted in the first anti-loosening plate; the limiting hole is hexagonal and is formed in the first limiting component, and a nut of the hexagon bolt is embedded into the limiting hole; the second limiting component is made of an elastic material and is used for pressing and touching the nut; the connecting assembly is used for detachably connecting the first anti-loosening plate and the second anti-loosening plate; by using the flange plate, the bolt and the nut on the flange plate can be limited, the risk of relative rotation of the bolt and the nut is reduced, and the reliability of connecting the bolt with the flange plate is improved.

Description

A high-strength bolt connection structure with anti-loosening device Technical Field

[0001] This utility model relates to the technical field of bolt connection reinforcement devices, and in particular to a high-strength bolt connection structure with an anti-loosening device. Background Technology

[0002] Flanges are widely used in the connection and installation of pipes and equipment. A flange is a disc-shaped metal piece with multiple bolt holes around its perimeter. By tightening the bolts, two flanges are firmly connected together.

[0003] Inevitably, after existing flanges are connected by bolts, they are prone to vibration due to external factors during subsequent use. This can cause the bolts used to connect the flanges to rotate relative to each other, which may lead to the bolts loosening and affect the effectiveness of the flange connection. Summary of the Invention

[0004] In view of the above problems, this utility model provides a high-strength bolt connection structure with an anti-loosening device, the purpose of which is to reduce the risk of bolt loosening.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A high-strength bolt connection structure with an anti-loosening device is provided, comprising: a first anti-loosening plate and a second anti-loosening plate, respectively located on both sides of a pair of flanges; a first limiting component installed in the first anti-loosening plate; a limiting hole, hexagonal in shape, opened in the first limiting component for inserting the nut of a hexagonal bolt; a second limiting component, made of elastic material, for pressing against a nut; and a connecting assembly for detachably connecting the first anti-loosening plate and the second anti-loosening plate.

[0007] Furthermore, a plurality of first limiting components are arranged in a circumferential array on a first anti-loosening plate, and a plurality of second limiting components are arranged in a circumferential array on a second anti-loosening plate.

[0008] Furthermore, a countersunk hole is provided in the second anti-loosening plate, and the second limiting component is made of rubber, with one end of the second limiting component bonded and installed in the countersunk hole.

[0009] Furthermore, a stepped hole is provided in the first anti-loosening plate, and the first limiting component is installed in the stepped hole by screws.

[0010] Furthermore, the connecting assembly includes: a connecting rod, one end of which is rotatably disposed within the second anti-loosening plate, and the other end extending toward the first anti-loosening plate; a limiting block disposed on the side of the first anti-loosening plate away from the second anti-loosening plate; a limiting groove formed on the limiting block; and a limiting rod disposed at the end of the connecting rod away from the second anti-loosening plate, capable of being embedded in the limiting groove.

[0011] Furthermore, two limiting rods are symmetrically arranged on both sides of a connecting rod, and the limiting rods are installed perpendicular to the connecting rod; two limiting blocks are arranged on both sides of a connecting rod.

[0012] Furthermore, the limiting groove is opened parallel to the flange, and the opening of the limiting groove faces the central axis of the flange.

[0013] The beneficial effects of this utility model are as follows: by using this utility model, the bolts and nuts on the flange can be limited, reducing the risk of relative rotation between the bolts and nuts and improving the reliability of the bolted flange connection. Attached Figure Description

[0014] Figure 1 is a schematic diagram of the installation structure of the first anti-loosening plate and the second anti-loosening plate provided in the embodiment of this application.

[0015] Figure 2 is a top view of the connecting component and the first anti-loosening plate provided in an embodiment of this application.

[0016] Among them, 1. First anti-loosening plate; 2. Second anti-loosening plate; 3. Flange; 41. First limiting component; 411. Limiting hole; 42. Second limiting component; 51. Connecting rod; 52. Limiting block; 53. Limiting groove; 54. Limiting rod; 6. Bolt; 61. Nut. Detailed Implementation

[0017] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0018] Referring to Figures 1 and 2, this application discloses a high-strength bolt connection structure with an anti-loosening device, comprising: a first anti-loosening plate 1 and a second anti-loosening plate 2, respectively located on both sides of a pair of flanges 3; a first limiting component 41 installed in the first anti-loosening plate 1; a limiting hole 411, hexagonally formed, opened in the first limiting component 41 for the insertion of a nut of a hexagonal bolt 6; a second limiting component 42, made of elastic material, used to press against a nut 61; and a connecting assembly for detachably connecting the first anti-loosening plate 1 and the second anti-loosening plate 2.

[0019] In this embodiment, after welding a pair of flanges 3 onto two devices that need to be connected, hex bolts 6 are passed through the two flanges 3, and nuts 61 are installed on the hex bolts 6 by threaded connection. The two flanges 3 are then locked together by the nuts 61 and the nuts of the hex bolts 6.

[0020] Next, the first anti-loosening plate 1 is placed on one side of the nut of the hexagonal bolt 6, and the nut of the hexagonal bolt 6 is inserted into the limiting hole 411. The limiting hole 411 is hexagonal, and the inner wall of the limiting hole 411 is in contact with the outer wall of the nut of the hexagonal bolt 6 to restrict the rotation of the hexagonal bolt 6. Then, the second anti-loosening plate 2 is placed on one side of the nut 61, and the second limiting component 42 is pressed against the nut 61. There is a certain friction between the second limiting component 42 and the nut 61, and the rotation of the nut 61 is restricted by the second limiting component 42. Finally, the first anti-loosening plate 1 and the second anti-loosening plate 2 are connected and fixed to the flange 3 by the connecting assembly.

[0021] By using this utility model, the bolts 6 and nuts 61 on the flange 3 can be limited, reducing the risk of relative rotation between the bolts 6 and nuts 61 and improving the reliability of the bolts 6 connecting to the flange 3.

[0022] Specifically, a plurality of first limiting components 41 are arranged in a circumferential array on a first anti-loosening plate 1, and a plurality of second limiting components 42 are arranged in a circumferential array on a second anti-loosening plate 2. It is worth mentioning that the first limiting components 41 and the second limiting components 42 can be respectively arranged on the first anti-loosening plate 1 and the second anti-loosening plate 2 according to the number of bolts 6.

[0023] Specifically, a countersunk hole is provided in the second anti-loosening plate 2, and the second limiting component 42 is made of rubber. One end of the second limiting component 42 is bonded and installed in the countersunk hole. It is worth mentioning that the inner diameter of the countersunk hole is larger than the outer diameter of the second limiting component 42, so that the second limiting component 42 can be squeezed and deformed.

[0024] It is worth mentioning that through holes for bolts 6 to pass through are provided on both the second anti-loosening plate 2 and the second limiting component 42.

[0025] Specifically, a stepped hole is provided in the first anti-loosening plate 1, and the first limiting component 41 is installed in the stepped hole by screws; the first limiting component 41 with different sizes of limiting holes 411 can be flexibly replaced by different specifications of bolts 6.

[0026] In this embodiment, the connecting assembly includes: a connecting rod 51, one end of which is rotatably disposed in the second anti-loosening plate 2, and the other end extending toward the first anti-loosening plate 1; a limiting block 52, disposed on the side of the first anti-loosening plate 1 away from the second anti-loosening plate 2; a limiting groove 53, formed on the limiting block 52; and a limiting rod 54, disposed at the end of the connecting rod 51 away from the second anti-loosening plate 2, and capable of being embedded in the limiting groove 53.

[0027] Specifically, when connecting and installing the first anti-loosening plate 1 and the second anti-loosening plate 2, the second limiting component 42 is in a squeezed state. Then, the worker manually rotates the connecting rod 51, which drives the limiting rod 54 to rotate until the limiting rod 54 is embedded in the limiting groove 53. When the worker releases the hand, the second limiting component 42 returns to its deformed state, and the limiting rod 54 is locked in the limiting groove 53, thus completing the installation of the first anti-loosening plate 1 and the second anti-loosening plate 2.

[0028] It is worth mentioning that the installation process of the first anti-loosening plate 1 and the second anti-loosening plate 2 can be completed by multiple workers working together; after the installation of the first anti-loosening plate 1 and the second anti-loosening plate 2 is completed, the second limiting component 42 is still in a compressed state, which elastically supports the first anti-loosening plate 1 and the second anti-loosening plate 2.

[0029] Preferably, two limiting rods 54 are symmetrically arranged on both sides of a connecting rod 51, and the limiting rods 54 are installed perpendicular to the connecting rod 51; two limiting blocks 52 are arranged on both sides of a connecting rod 51.

[0030] In this embodiment, four sets of connecting components are arranged in a circumferential array along the circumferential direction of the flange 3.

[0031] Preferably, the limiting groove 53 is opened parallel to the flange 3, and the opening of the limiting groove 53 faces the central axis of the flange 3 to prevent the limiting rod 54 from falling out of the limiting groove 53 and to ensure a reliable connection between the first anti-loosening plate 1 and the second anti-loosening plate 2.

[0032] Those skilled in the art will understand that although preferred embodiments of the present invention have been described, those skilled in the art, once they learn the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention. Clearly, those skilled in the art can make various alterations and modifications to the present invention without departing from its spirit and scope. Thus, if these modifications and modifications of the present invention fall within the scope of the machine equivalents of the claims of the present invention, the present invention also intends to include these modifications and modifications.

Claims

1. A high-strength bolt connection structure with an anti-loosening device, characterized in that, include: The first anti-loosening plate (1) and the second anti-loosening plate (2) are respectively located on both sides of a pair of flanges (3); the first limiting component (41) is installed in the first anti-loosening plate (1); the limiting hole (411) is hexagonal and opened in the first limiting component (41) for the nut of the hexagonal bolt (6) to be inserted; the second limiting component (42) is made of elastic material and is used to press the nut (61); the connecting assembly is used to detachably connect the first anti-loosening plate (1) and the second anti-loosening plate (2).

2. The high-strength bolt connection structure with anti-loosening device according to claim 1, characterized in that, A plurality of first limiting components (41) are arranged in a circumferential array on a first anti-loosening plate (1), and a plurality of second limiting components (42) are arranged in a circumferential array on a second anti-loosening plate (2).

3. The high-strength bolt connection structure with anti-loosening device according to claim 1, characterized in that, A countersunk hole is provided in the second anti-loosening plate (2), and the second limiting component (42) is made of rubber. One end of the second limiting component (42) is bonded and installed in the countersunk hole.

4. The high-strength bolt connection structure with anti-loosening device according to claim 1, characterized in that, The first anti-loosening plate (1) has a stepped hole, and the first limiting component (41) is installed in the stepped hole by screws.

5. The high-strength bolt connection structure with anti-loosening device according to claim 1, characterized in that, The connecting assembly includes: a connecting rod (51), one end of which is rotatably disposed in the second anti-loosening plate (2), and the other end extending toward the first anti-loosening plate (1); a limiting block (52), disposed on the side of the first anti-loosening plate (1) away from the second anti-loosening plate (2); a limiting groove (53), formed on the limiting block (52); and a limiting rod (54), disposed at the end of the connecting rod (51) away from the second anti-loosening plate (2), and capable of being embedded in the limiting groove (53).

6. The high-strength bolt connection structure with anti-loosening device according to claim 5, characterized in that, Two limiting rods (54) are symmetrically arranged on both sides of a connecting rod (51), and the limiting rods (54) are installed perpendicular to the connecting rod (51); two limiting blocks (52) are arranged on both sides of a connecting rod (51).

7. The high-strength bolt connection structure with anti-loosening device according to claim 5, characterized in that, The limiting groove (53) is opened parallel to the flange (3), and the opening of the limiting groove (53) faces the central axis of the flange (3).

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