Anti-thread-slipping bolt with double bolt heads

Abstract

The invention discloses an anti-thread-slipping double-bolt-head bolt, and belongs to the field of studs, the anti-thread-slipping double-bolt-head bolt comprises a stud body, anti-thread-slipping structures and a nut, the nut is connected with threads on the outer side of the stud body through internal threads, and the anti-thread-slipping structures are arranged at the two ends of the stud body and used for locking the nut; the anti-thread-slipping structure comprises a fixed seat and a locking seat, the fixed seat and the locking seat are connected through a telescopic rod, and the middle of the locking seat is of a hollow structure; the nut comprises a nut body, the nut body is connected with the locking base in a clamped mode, and threads are arranged in the middle of the nut body and used for being matched with the stud body. According to the double-end bolt, the anti-thread-slipping structures are arranged at the two ends of the bolt, the nut can be locked, the nut can be kept at the working position after being installed, then the thread slipping phenomenon caused by factors such as vibration in the using process is avoided, and the anti-thread-slipping capacity of the double-end bolt is effectively improved.

Description

Technical Field

[0001] The invention relates to the field of stud bolts, in particular to a double-bolt head bolt with anti-slip threads. Background Art

[0002] Stud bolts, also called stud screws or studs, are used to connect mechanical fixed links. Stud bolts have threads on both ends. The middle screw, which can be thick or thin, is mostly used in large equipment that needs to be equipped with accessories, such as sight glasses, mechanical seal seats, reducer racks, etc.

[0003] However, after the traditional double-bolt head bolt is installed, during actual use, due to the vibration of the equipment or the change of the actual working load, the nut will produce uncontrolled rotation, resulting in slippage between the nut and the bolt, causing shaking between the fixed structures on the equipment, affecting the normal operation of the equipment. Therefore, in order to avoid slippage between the nut and the bolt and improve the stability of the bolt, a double-bolt head bolt with anti-slip thread is proposed. Summary of the invention

[0004] The purpose of the present invention is to provide a double-bolt head bolt with anti-slip threads, so as to solve the problem proposed in the above background technology that after the double-bolt head bolt is installed, the vibration of the equipment or the change of the actual working load may cause the nut to produce uncontrolled rotation, resulting in slippage between the nut and the bolt.

[0005] To achieve the above object, the present invention provides the following technical solution: a double-bolt head bolt with anti-slip wire, comprising a stud body, an anti-slip wire structure, and a nut, wherein the nut is connected with the threads on the outside of the stud body through internal threads, and the anti-slip wire structure is arranged at both ends of the stud body for locking the nut;

[0006] The anti-slip wire structure includes a fixed seat and a locking seat, the fixed seat and the locking seat are connected by a telescopic rod, and the middle part of the locking seat is a hollow structure;

[0007] The nut comprises a mother body, which is clamped with a locking seat, and a thread is provided in the middle of the mother body for matching with the stud body;

[0008] As a further preferred embodiment of the present technical solution: a spring is sleeved on the outer side of the telescopic rod, and two ends of the spring act on the fixing seat and the locking seat respectively;

[0009] As a further preferred embodiment of the technical solution: a fixing frame is fixed on the fixing seat, and a second positioning hole is opened on the fixing frame;

[0010] As a further preferred embodiment of the present technical solution: connecting frames are respectively fixed at both ends of the stud body, and a positioning hole 1 is provided on the connecting frame;

[0011] As a further preferred embodiment of the technical solution: the first positioning hole and the second positioning hole cooperate with each other, and a fixing rod is provided inside the first positioning hole and the second positioning hole, and a card slot is provided on the fixing rod;

[0012] As a further preferred embodiment of the technical solution: a groove is provided on the mother body, and a locking block is provided on the locking seat, and the locking block can be stuck in the groove;

[0013] As a further preferred embodiment of the technical solution: the fixing frame is provided with two groups and is respectively arranged on both sides of the connecting frame;

[0014] As a further preferred embodiment of the technical solution: two groups of positioning holes 2 are symmetrically opened on the fixing frame, and two groups of positioning holes 1 are symmetrically opened on the connecting frame;

[0015] As a further preferred embodiment of the present technical solution: the stud body is provided with a thread matching with a mother body, and the mother body is threadedly connected to the stud body.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In the present invention, by arranging anti-slip wire structures at both ends of the bolt, the nut can be locked so that the nut can be kept in the working position after installation, thereby avoiding the slipping phenomenon caused by factors such as vibration during use, and effectively improving the anti-slip wire ability of the stud bolt;

[0018] 2. By setting a clamping mode between the locking seat and the nut, the locking block on the locking seat cooperates with the groove on the nut, which can limit the rotation of the nut, and the elastic force of the spring makes the nut and the anti-slip wire structure in close contact, reducing the problem of slipping wire and improving stability and fixity;

[0019] 3. In the present invention, the anti-slip wire structure is connected to both ends of the bolt through a fixed rod, which is easy to install. The card groove on the fixed rod can enhance the stability of the installation of the anti-slip wire structure, so that the anti-slip wire structure can better lock the nut and ensure the tightness of the connection. The installation method is simple and convenient, reducing equipment failures and safety hazards caused by slipping wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the three-dimensional structure of a double-bolt head bolt with anti-slip wire proposed by the present invention;

[0021] Figure 2 The invention provides an anti-slip wire structure for a double-bolt head bolt with an anti-slip wire;

[0022] Figure 3 It is a schematic diagram of the local structure of the stud body;

[0023] Figure 4 A partial schematic diagram of a double-bolt head bolt with anti-slip wire proposed by the present invention;

[0024] Figure 5 It is a schematic diagram of the locking seat and the mother body.

[0025] Legend:

[0026] 1. Stud body; 2. Anti-slip wire structure; 3. Nut; 4. Connecting frame; 5. Positioning hole 1; 21. Fixing seat; 22. Locking seat; 23. Fixing frame; 24. Fixing rod; 25. Slot; 26. Positioning hole 2; 27. Spring; 28. Telescopic rod; 29. ​​Locking block; 31. Groove; 32. Mother body. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Example

[0029] See also Figure 1-Figure 5 As shown, the present invention provides a technical solution: a double-bolt head bolt with anti-slip wire, comprising a stud body 1, an anti-slip wire structure 2, and a nut 3, wherein the nut 3 is connected with the outer thread of the stud body 1 through an internal thread, and the anti-slip wire structure 2 is arranged at both ends of the stud body 1 for locking the nut 3;

[0030] The anti-slip wire structure 2 includes a fixing seat 21 and a locking seat 22. The fixing seat 21 and the locking seat 22 are connected by a telescopic rod 28. The middle part of the locking seat 22 is a hollow structure.

[0031] The nut 3 includes a body 32 , which is clamped with the locking seat 22 , and a thread is provided in the middle of the body 32 for matching with the stud body 1 .

[0032] In this embodiment, specifically: the outer side of the telescopic rod 28 is sleeved with a spring 27, and the two ends of the spring 27 act on the fixing seat 21 and the locking seat 22 respectively. Through the combination of the fixing seat 21, the locking seat 22, and the telescopic rod 28 and the spring 27 therebetween, the stud body 1 can be auxiliary supported and positioned from both ends after the nut 3 is fixed. The elastic effect of the spring 27 can absorb a certain amount of vibration energy and reduce the influence of vibration on the tightening state of the nut 3.

[0033] In this embodiment, specifically: a fixing frame 23 is fixed on the fixing seat 21 , and a second positioning hole 26 is opened on the fixing frame 23 .

[0034] In this embodiment, specifically: the two ends of the stud body 1 are respectively fixed with a connecting frame 4, and a positioning hole 5 is provided on the connecting frame 4.

[0035] In this embodiment, specifically: the positioning hole 1 5 and the positioning hole 2 26 cooperate with each other, and a fixing rod 24 is provided inside the positioning hole 1 5 and the positioning hole 2 26 , and a slot 25 is provided on the fixing rod 24 .

[0036] In this embodiment, specifically: a groove 31 is provided on the mother body 32 , and a locking block 29 is provided on the locking seat 22 , and the locking block 29 can be stuck in the groove 31 .

[0037] In this embodiment, specifically: the fixing frames 23 are provided in two groups and are respectively arranged on both sides of the connecting frame 4 .

[0038] In this embodiment, specifically: two groups of positioning holes 26 are symmetrically opened on the fixing frame 23, and two groups of positioning holes 1 5 are symmetrically opened on the connecting frame 4. The cooperation between the fixing rod 24 and the positioning hole 1 5 and the positioning hole 2 26, and the clamping connection between the locking block 29 and the groove 31, form a double locking mechanism, which greatly reduces the possibility of the nut loosening.

[0039] In this embodiment, specifically: the stud body 1 is provided with a thread matched with the mother body 32 , and the mother body 32 is threadedly connected to the stud body 1 .

[0040] Working principle or structural principle: When in use, the nut 3 is threadedly connected with the outer thread of the stud body 1 through the internal thread. When the nut 3 is fixed in a suitable position, the fixing rod 24 is inserted into the matching positioning hole 1 5 and the positioning hole 2 26, and the slot 25 can limit the movement of the fixing rod 24, so that the connecting frame 4 and the fixing seat 21 can be more stably positioned and connected, so that the anti-slip wire structure 2 as a whole can be better fixed to the stud body 1, and the locking block 29 can be stuck in the groove 31. Through this clamping method, the position of the nut 3 on the stud body 1 is locked to prevent the nut 3 from loosening or rotating due to external factors such as vibration, resulting in the thread slipping, thereby ensuring the tightness and stability of the connection.

[0041] 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. A double bolt head bolt with anti-slip wire, characterized in that: It comprises a stud body (1), an anti-slip wire structure (2), and a nut (3), wherein the nut (3) is connected to the outer thread of the stud body (1) through an internal thread, and the anti-slip wire structure (2) is arranged at both ends of the stud body (1) for locking the nut (3); The anti-slip wire structure (2) comprises a fixing seat (21) and a locking seat (22); the fixing seat (21) and the locking seat (22) are connected via a telescopic rod (28); and the middle portion of the locking seat (22) is a hollow structure; The nut (3) comprises a mother body (32) which is clamped with a locking seat (22). A thread is provided in the middle of the mother body (32) for cooperating with the stud body (1).

2. A double bolt head bolt with anti-slip wire according to claim 1, characterized in that: A spring (27) is sleeved on the outer side of the telescopic rod (28), and two ends of the spring (27) act on the fixing seat (21) and the locking seat (22) respectively.

3. The double-bolt head bolt with anti-slip wire according to claim 1, characterized in that: A fixing frame (23) is fixed on the fixing seat (21), and a second positioning hole (26) is provided on the fixing frame (23).

4. The double-bolt head bolt with anti-slip wire according to claim 1, characterized in that: The two ends of the stud body (1) are respectively fixed to a connecting frame (4), and a positioning hole (5) is provided on the connecting frame (4).

5. The double-bolt head bolt with anti-slip wire according to claim 1, characterized in that: The first positioning hole (5) and the second positioning hole (26) cooperate with each other, and a fixing rod (24) is provided inside the first positioning hole (5) and the second positioning hole (26), and a clamping groove (25) is provided on the fixing rod (24).

6. The double-bolt head bolt with anti-slip wire according to claim 1, characterized in that: The mother body (32) is provided with a groove (31), and the locking seat (22) is provided with a locking block (29), and the locking block (29) can be stuck in the groove (31).

7. The double-bolt head bolt with anti-slip wire according to claim 3, characterized in that: The fixing frames (23) are provided in two groups and are respectively arranged on both sides of the connecting frame (4).

8. The double-bolt head bolt with anti-slip wire according to claim 1, characterized in that: Two groups of positioning holes (26) are symmetrically formed on the fixing frame (23), and two groups of positioning holes (5) are symmetrically formed on the connecting frame (4).

9. The double-bolt head bolt with anti-slip wire according to claim 1, characterized in that: The stud body (1) is provided with a thread matched with a mother body (32), and the mother body (32) is threadedly connected to the stud body (1).

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