Connecting bolt capable of movably connecting internal threads with external threads

Abstract

The utility model relates to the technical field of connecting bolts, in particular to a connecting bolt capable of movably connecting an inner thread with an outer thread, which comprises a bolt body and a nut in threaded connection with the bolt body, an inner cavity is arranged on the side wall of the bottom of the bolt body, an inserting opening is arranged on the bolt body, and the inserting opening and the nut are correspondingly arranged. An anti-falling structure used for preventing the nut from falling off due to vibration is arranged in the inner cavity and comprises a fixed disc fixedly connected into the inner cavity, the fixed disc is vertically and slidably connected with a pull rod, the pull rod is fixedly sleeved with a movable disc, the pull rod is sleeved with a spring, and the two ends of the spring are fixedly connected with the fixed disc and the movable disc correspondingly; a traction piece for driving the insertion block to horizontally move in the insertion opening is arranged on the pull rod. Compared with a bolt in the prior art, through the arrangement of the anti-falling structure, the risk that the nut falls off due to vibration is effectively prevented in daily use, and therefore the stability of connection of the bolt body is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of connecting bolts, in particular to a connecting bolt capable of flexibly connecting an inner thread to an outer thread. Background Art

[0002] A bolt is a mechanical component characterized by a cylindrical, threaded fastener that fits into a nut. The internal thread typically refers to the female thread, the portion located inside the hole, while the external thread refers to the male thread, the portion located outside the cylinder. The design of a flexible internal-to-external connection is primarily designed to facilitate the installation and tightening of the bolt and nut, achieving a secure connection.

[0003] In the prior art, connecting bolts are typically installed by first inserting the bolt through the object to be connected, then tightening the nut to secure the bolt. However, during use, due to external factors such as vibration, the nut and bolt can easily loosen or even separate, causing the bolt's fastening method to fail and affecting the object's securing effect. Utility Model Content

[0004] The purpose of the utility model is to solve the problem in the prior art that due to external factors such as vibration, the nut and the bolt are easily loosened or even separated, resulting in failure of the bolt fastening method, thereby affecting the fixing effect of the article, and to propose a connecting bolt that can flexibly connect the internal thread to the external thread.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A connecting bolt capable of flexibly connecting an internal thread to an external thread comprises a bolt body and a nut threadedly connected to the bolt body, wherein the bottom side wall of the bolt body is provided with an inner cavity, the bolt body is provided with a socket, and the socket and the nut are correspondingly arranged;

[0007] An anti-falling structure is provided in the inner cavity to prevent the nut from falling off due to vibration.

[0008] Preferably, the anti-slip structure includes a fixed disk fixedly connected to the inner cavity, the fixed disk is vertically slidably connected to a pull rod, a movable disk is fixedly sleeved on the pull rod, a spring is sleeved on the pull rod, and both ends of the spring are fixedly connected to the fixed disk and the movable disk respectively, and an insert is slidably inserted into the socket;

[0009] The pull rod is provided with a traction member for driving the inserting block to move horizontally in the socket.

[0010] Preferably, the traction member includes a U-shaped seat fixedly connected to the pull rod and the opposite side walls of the insert block, the U-shaped seat is fixedly connected to a connecting shaft, and the traction rod is rotatably connected to the connecting shaft.

[0011] Preferably, the U-shaped seats on the pull rod are arranged in a circular array, and the sockets and the U-shaped seats are arranged correspondingly.

[0012] Preferably, a sliding opening is provided on the fixing plate to facilitate the pull rod to slide vertically therethrough, and the sliding opening is arranged at the center of the plane of the fixing plate.

[0013] Preferably, the side wall of the movable plate is in contact with the bolt body, and the movable plate is arranged directly above the fixed plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The utility model provides an anti-slip structure. After the nut is threadedly connected to the bolt body, the pull rod is loosened. Under the action of the spring, the movable plate drives the pull rod to move vertically upward. The traction rod rotates, causing the plug sliding in the socket to slide out of the socket. The top of the plug and the bottom of the nut are abutted against each other, effectively preventing the risk of the nut falling off due to vibration in daily use, thereby ensuring the stability of the bolt body connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a connecting bolt capable of flexibly connecting an inner thread to an outer thread proposed by the present invention;

[0017] Figure 2 This is a schematic diagram of the internal structure of a bolt body in a connecting bolt capable of flexibly connecting an inner thread to an outer thread proposed by the present invention;

[0018] Figure 3 This is a partial schematic diagram of a bolt body in a connecting bolt capable of flexibly connecting an inner thread to an outer thread proposed by the present invention;

[0019] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0020] In the figure: 1. Bolt body; 2. Nut; 3. Inner cavity; 4. Fixed plate; 5. Pull rod; 6. Moving plate; 7. Spring; 8. U-shaped seat; 9. Insert block; 10. Connecting shaft; 11. Pull rod; 12. Socket; 13. Sliding mouth. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Reference Figure 1-Figure 4 A connecting bolt capable of flexibly connecting an internal thread to an external thread comprises a bolt body 1 and a nut 2 threadedly connected to the bolt body 1. An inner cavity 3 is provided on the bottom side wall of the bolt body 1. The inner cavity 3 is circular, which is more aesthetically pleasing and facilitates the stable movement and installation of subsequent components. At the same time, the inner cavity 3 is specifically used to place an anti-slip mechanism, which protects key components from the influence of the external environment while also enhancing the seismic resistance of the entire device. A socket 12 is provided on the bolt body 1, and the socket 12 and the nut 2 are correspondingly arranged; a plurality of sockets 12 are arranged in a ring array, the purpose of which is to balance the force on the nut 2 and achieve stable support and anti-slip of the nut 2.

[0023] An anti-falling structure is provided in the inner cavity 3 to prevent the nut 2 from falling off due to vibration.

[0024] The anti-slip structure includes a fixed plate 4 fixedly connected to the inner cavity 3. The fixed plate 4 is vertically slidably connected to a pull rod 5. The bottom end of the pull rod 5 extends below the bottom of the bolt body 1. The purpose is to prevent the pull rod 5 from moving into the inner cavity 3 and making it inconvenient for the staff to pull it. The pull rod 5 is fixedly sleeved with a movable plate 6, and the pull rod 5 is sleeved with a spring 7. The spring 7 is set to drive the horizontal movement of the plug 9. The two ends of the spring 7 are fixedly connected to the fixed plate 4 and the movable plate 6 respectively. The plug 9 is slidably inserted into the socket 12.

[0025] The pull rod 5 is provided with a traction member for driving the insert block 9 to move horizontally in the socket 12 .

[0026] The traction member includes a U-shaped seat 8 fixedly connected to the pull rod 5 and the opposite side wall of the insert block 9. The U-shaped seat 8 is fixedly connected to the connecting shaft 10, and the connecting shaft 10 is rotatably connected to the traction rod 11. The U-shaped seat 8 provides a stable installation platform for the installation of the connecting shaft 10 and the traction rod 11.

[0027] The U-shaped seats 8 on the pull rod 5 are arranged in a circular array, and the sockets 12 and the U-shaped seats 8 are correspondingly arranged.

[0028] The fixed plate 4 is provided with a slot 13 for the pull rod 5 to slide vertically through, and the slot 13 is located at the center of the plane of the fixed plate 4. This arrangement ensures that when the pull rod 5 moves vertically, the multiple traction rods 11 are subjected to balanced forces and rotate synchronously, thereby achieving synchronous movement of the insert 9.

[0029] The side wall of the movable plate 6 is in contact with the bolt body 1 , and the movable plate 6 is arranged directly above the fixed plate 4 .

[0030] The functional principle of this utility model can be explained through the following operation modes:

[0031] Insert the components to be connected into the bolt body 1 and tighten the nut 2 to preliminarily secure them. During this process, the insert 9 in the socket 12 is held stationary by the pulling member, specifically by manually pulling the pull rod 5 to keep the insert 9 in the socket 12.

[0032] When further tightening is required, release the pull on the pull rod 5. Under the action of the spring 7, the movable plate 6 and the pull rod 5 move vertically upward together. The pull rod 5 drives the U-shaped seat 8 and the connecting shaft 10 to move together, and the traction rod 11 rotates, so that the plug block 9 sliding in the socket 12 slides out of the socket 12, and the top of the plug block 9 and the bottom of the nut 2 are abutted against each other, thereby preventing the nut 2 from falling off.

[0033] This design significantly improves the stability and reliability of the connecting bolts in dynamic environments by adding a simple and effective mechanical anti-slip structure, and is suitable for application scenarios with high tightening requirements.

[0034] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A connecting bolt capable of flexibly connecting an internal thread to an external thread, comprising a bolt body (1) and a nut (2) threadedly connected to the bolt body (1), characterized in that: An inner cavity (3) is provided on the bottom side wall of the bolt body (1), a socket (12) is provided on the bolt body (1), and the socket (12) and the nut (2) are correspondingly arranged; An anti-fall-off structure for preventing the nut (2) from falling off due to vibration is provided in the inner cavity (3).

2. A connecting bolt capable of flexibly connecting an inner thread to an outer thread according to claim 1, characterized in that: The anti-slip structure includes a fixed disk (4) fixedly connected to the inner cavity (3), the fixed disk (4) is vertically slidably connected to a pull rod (5), a movable disk (6) is fixedly sleeved on the pull rod (5), a spring (7) is sleeved on the pull rod (5), and two ends of the spring (7) are respectively fixedly connected to the fixed disk (4) and the movable disk (6), and an insert (9) is slidably inserted into the socket (12); The pull rod (5) is provided with a traction member for driving the inserting block (9) to move horizontally in the socket (12).

3. A connecting bolt capable of flexibly connecting an inner thread to an outer thread according to claim 2, characterized in that: The traction member comprises a U-shaped seat (8) fixedly connected to the pull rod (5) and the opposite side wall of the insert block (9); a connecting shaft (10) is fixedly connected to the U-shaped seat (8); and a traction rod (11) is rotatably connected to the connecting shaft (10).

4. A connecting bolt capable of flexibly connecting an inner thread to an outer thread according to claim 3, characterized in that: The U-shaped seats (8) on the pull rod (5) are arranged in a circular array, and the sockets (12) and the U-shaped seats (8) are arranged correspondingly.

5. The connecting bolt capable of flexibly connecting an inner thread to an outer thread according to claim 2, characterized in that: The fixed disk (4) is provided with a sliding opening (13) for facilitating the vertical sliding of the pull rod (5), and the sliding opening (13) is arranged at the center of the plane of the fixed disk (4).

6. The connecting bolt capable of flexibly connecting an inner thread to an outer thread according to claim 2, characterized in that: The side wall of the movable plate (6) is in contact with the bolt body (1), and the movable plate (6) is arranged directly above the fixed plate (4).

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