A new high-strength bolted joint structure

Abstract

The utility model relates to high -strength bolt technical field discloses a novel high -strength bolt connection structure, including bolt body, the threaded surface rotation of bolt body is connected with nut, the threaded surface sliding connection of bolt body has first gasket, the threaded surface sliding connection of bolt body has second gasket, two threaded rods are inserted to the first gasket inner thread, the surface of second gasket is provided with a plurality of threaded holes, the surface fixed connection of first gasket has two rotating blocks, two rotating blocks are connected with rotating lever in the side of each other close rotation, the circular arc surface fixed connection of rotating lever has the protective housing, the surface fixed connection of first gasket has square block. This novel high -strength bolt connection structure avoids the junction of bolt body and nut in the long -time use process because of the vibration and produces the loosening, causes the fixed effect of bolt body and nut to reduce the situation to appear.

Description

Technical Field

[0001] This utility model relates to the field of high-strength bolt technology, and in particular to a novel high-strength bolt connection structure. Background Technology

[0002] In many fields such as modern machinery manufacturing, construction engineering, and transportation, high-strength bolted connections have become an indispensable basic connection component due to their reliable connection performance and convenient installation.

[0003] However, existing high-strength bolted connections face numerous challenges in practical applications. Under complex working conditions, especially in environments with continuous vibration, alternating loads, or drastic temperature changes, the connection between bolts and nuts is prone to loosening. For example, in the daily operation of highway bridges, the vibrations generated by passing vehicles cause repeated impacts on the bolted connections, leading to the nuts gradually loosening. In heavy machinery on industrial production lines, the high-strength bolted connections often lose their preload due to vibration during long-term high-frequency operation. Once the bolts and nuts loosen, it not only reduces the fixing effect of the connection structure and causes problems such as equipment operating noise and decreased precision, but in severe cases, it may even cause the connected parts to fall off, resulting in structural collapse, equipment damage, and ultimately major safety accidents and economic losses.

[0004] Regarding the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: the connection between the bolt body and the nut may loosen due to vibration during long-term use, resulting in a reduction in the fixing effect between the bolt body and the nut. Utility Model Content

[0005] The technical problem to be solved by this utility model is that the connection between the bolt body and the nut in the prior art is prone to loosening due to vibration during long-term use, which reduces the fixing effect between the bolt body and the nut. To address this, we propose a new high-strength bolt connection structure.

[0006] To achieve the above objectives, this application adopts the following technical solution: a novel high-strength bolt connection structure, comprising a bolt body, a nut rotatably connected to the threaded surface of the bolt body, a first washer slidably connected to the threaded surface of the bolt body, a second washer slidably connected to the threaded surface of the bolt body, two threaded rods inserted into the inner thread of the first washer, and a plurality of threaded holes being formed on the surface of the second washer.

[0007] Preferably, two rotating blocks are fixedly connected to the surface of the first gasket, and a rotating rod is rotatably connected to the side of the two rotating blocks that are close to each other. A protective shell is fixedly connected to the arc surface of the rotating rod.

[0008] Preferably, a square block is fixedly connected to the surface of the first gasket, a rod is slidably inserted into the square block, and a slot is provided on the surface of the protective shell.

[0009] Preferably, one end of the insertion rod has a groove, and a handle is fixedly connected to the surface of the groove.

[0010] Preferably, the arc surface of the insertion rod is fitted with a spring, and the two ends of the spring are fixedly connected to the square block and the handle, respectively.

[0011] Preferably, the arc surface of the rotating rod is fitted with two torsion springs, and the two ends of the torsion springs are fixedly connected to the rotating block and the protective shell, respectively.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] This invention achieves the effect of secondary fixing of the bolt body and nut, avoiding the loosening of the connection between the bolt body and nut due to vibration during long-term use, which would reduce the fixing effect of the bolt body and nut. Attached Figure Description

[0014] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the threaded rod in this utility model;

[0017] Figure 3 This is a schematic diagram of the protective shell in this utility model;

[0018] Figure 4 In this utility model Figure 3 Enlarged view of point A;

[0019] Figure 5 In this utility model Figure 3 A partial structural diagram.

[0020] Legend: 1. Bolt body; 2. Nut; 3. First washer; 4. Second washer; 5. Threaded rod; 6. Threaded hole; 7. Rotating block; 8. Rotating rod; 9. Protective shell; 10. Square block; 11. Insert rod; 12. Handle; 13. Spring; 14. Torsion spring. Detailed Implementation

[0021] Reference Figures 1-5As shown, this utility model provides a technical solution: a novel high-strength bolt connection structure, including a bolt body 1, a nut 2 rotatably connected to the threaded surface of the bolt body 1, a first washer 3 slidably connected to the threaded surface of the bolt body 1, and a second washer 4 slidably connected to the threaded surface of the bolt body 1. Two threaded rods 5 are inserted into the inner thread of the first washer 3, and several threaded holes 6 are formed on the surface of the second washer 4. This achieves the effect of secondary fixing of the bolt body 1 and the nut 2, preventing loosening of the connection between the bolt body 1 and the nut 2 due to vibration during long-term use, thus reducing the fixing effect of the bolt body 1 and the nut 2. Two rotating blocks 7 are fixedly connected to the surface of the first washer 3, and a rotating rod 8 is rotatably connected to the side of the two rotating blocks 7 that is close to each other. A protective shell 9 is fixedly connected to the arc surface of the rotating rod 8, achieving the effect of protecting the bolt body 1. This prevents the bolt body 1 from being exposed to the outside environment for a long time, avoiding contact between the bolt body 1 and impurities such as water vapor in the air, which could lead to corrosion of the bolt body 1 and make it difficult for workers to disassemble the bolt body 1. A square... Block 10, a square block 10, has a sliding insert rod 11. The surface of the protective shell 9 has slots to secure it, preventing rotation and potential opening that could reduce its protective effectiveness. One end of the insert rod 11 has a groove, and a handle 12 is fixedly connected to the groove. The handle 12 facilitates movement of the insert rod 11, preventing slippage due to the lack of a suitable stress point on the rod's curved surface. A spring 13 is fitted on the arc surface of the insertion rod 11. The two ends of the spring 13 are fixedly connected to the square block 10 and the handle 12, respectively. The rebound force of the spring 13 achieves the effect of automatically inserting the insertion rod 11, while limiting the movement of the insertion rod 11 and improving the stability of the insertion rod 11 when fixing the protective shell 9. Two torsion springs 14 are fitted on the arc surface of the rotating rod 8. The two ends of the torsion springs 14 are fixedly connected to the rotating block 7 and the protective shell 9, respectively. The torsion force of the torsion springs 14 achieves the effect of automatically opening the protective shell 9, while keeping the protective shell 9 in the open state, thus facilitating the disassembly of the bolt body 1 by the staff.

[0022] Working principle: When the worker needs to perform secondary fixation on the bolt body 1 and nut 2, the second washer 4 is moved. When the second washer 4 is in contact with the surface of the nut 2, the threaded rod 5 is rotated. The threaded rod 5 rotates within the first washer 3. When the threaded rod 5 rotates into the threaded hole 6, the threaded rod 5 can fix the second washer 4. At this time, the second washer 4 can fix the bolt body 1 and nut 2. After fixing, the protective shell 9 can be used to protect the bolt body 1 from rainwater and corrosion. The handle 12 is moved, which drives the insertion rod 11 to move. The spring 13 is stretched. When the insertion rod 11 moves to the appropriate position, the protective shell 9 is rotated. The protective shell 9 drives the rotating rod 8 to rotate. When the protective shell 9 rotates to the appropriate position, the bolt body 1 is fixed in place. When the bolt body 1 is on the surface, the protective shell 9 can protect the bolt body 1. When the handle 12 is released, the rebound force of the spring 13 drives the handle 12 to move. The handle 12 drives the insertion rod 11 to move until the insertion rod 11 is inserted into the surface of the slot of the protective shell 9. At this time, the insertion rod 11 can fix the protective shell 9. When the operator needs to open the protective shell 9, pull the handle 12 to drive the insertion rod 11 to move. The spring 13 is stretched. When the insertion rod 11 is completely separated from the surface of the slot of the protective shell 9, the insertion rod 11 releases the fixation of the protective shell 9. The torque of the torsion spring 14 drives the protective shell 9 to rotate. The protective shell 9 drives the rotating rod 8 to rotate until the protective shell 9 is fully opened. When the handle 12 is released, the rebound force of the spring 13 drives the handle 12 to move to the appropriate position.

[0023] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A novel high-strength bolted connection structure, characterized in that, The device includes a bolt body (1), a nut (2) rotatably connected to the threaded surface of the bolt body (1), a first washer (3) slidably connected to the threaded surface of the bolt body (1), a second washer (4) slidably connected to the threaded surface of the bolt body (1), two threaded rods (5) are inserted into the threaded surface of the first washer (3), and several threaded holes (6) are opened on the surface of the second washer (4); two rotating blocks (7) are fixedly connected to the surface of the first washer (3), a rotating rod (8) is rotatably connected to the side of the two rotating blocks (7) that are close to each other, and a protective shell (9) is fixedly connected to the arc surface of the rotating rod (8); a square block (10) is also fixedly connected to the surface of the first washer (3), a plug rod (11) is slidably inserted into the square block (10), and a slot is opened on the surface of the protective shell (9).

2. The novel high-strength bolt connection structure according to claim 1, characterized in that: A groove is provided at one end of the insertion rod (11), and a handle (12) is fixedly connected to the surface of the groove of the insertion rod (11).

3. The novel high-strength bolted connection structure according to claim 1, characterized in that: The arc surface of the insertion rod (11) is fitted with a spring (13), and the two ends of the spring (13) are fixedly connected to the square block (10) and the handle (12) respectively.

4. The novel high-strength bolted connection structure according to claim 1, characterized in that: The rotating rod (8) has two torsion springs (14) on its arc surface. The two ends of the torsion springs (14) are fixedly connected to the rotating block (7) and the protective shell (9), respectively.

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