Bolt structure with nut anti-retreating function

Abstract

The utility model relates to the technical field of mechanical engineering, and discloses a bolt structure with an anti-retreating nut, which comprises a hexagon bolt head, a connecting ring, a nut shell, a bolt shaft, nut internal texture, a pressure contact block, an axial positioning rod, locking teeth, a moving block, a fixing buckle, a limiting block, a movable spring and a nut end part, the connecting ring is fixedly connected to the lower end of the hexagon bolt head, the nut shell is fixedly connected to the lower end of the connecting ring, and the bolt shaft is fixedly connected to the lower end of the connecting ring. According to the bolt structure with the nut anti-retreating function, firm and reliable top connection is provided through tight combination of the hexagon bolt head and the connecting ring in the structure, the stability of the bolt in the using process is ensured, the bolt shaft is in tight fit with the internal texture of the nut in the nut shell, basic threaded connection is formed, and the bolt structure is convenient to use. The basic threaded structure shows extremely high stability when bearing tensile and compressive forces.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical engineering, in particular to a bolt structure with a nut anti-retraction function. Background Art

[0002] In today's mechanical design and manufacturing field, bolt connection is a basic and widely used fixing method, and its performance directly affects the safety and reliability of the overall structure. With the development of industrial technology, especially in high vibration or high load environments, traditional bolt connection methods face the problem of self-loosening, which may lead to failure of the connection, thereby causing safety hazards and increased maintenance costs. Therefore, it is particularly important to develop a bolt structure that can effectively prevent the bolts from loosening on their own. This demand has spawned research on more advanced and reliable bolt designs, including optimization of thread structures, innovation of locking mechanisms, and the use of more advanced materials and manufacturing technologies. Under this technical background, a bolt structure with nut anti-retraction function came into being. It not only provides anti-loosening characteristics that traditional bolts do not have, but also demonstrates its excellent performance and reliability in a variety of industrial applications, becoming an important advancement in modern mechanical design.

[0003] The prior art patent document CN217055912U discloses a nut anti-slipping device, which includes a screw, a nut, a flat washer and a spring washer; a threaded hole is provided at the top of the screw; the threaded hole matches the screw; when the nut is screwed onto the screw, the flat washer and the spring washer are installed on the screw at the outer end of the nut; when the nut is withdrawn to the top of the bolt, the flat washer plays a limiting role, which can effectively prevent the nut from falling off the screw; the nut has the characteristics of simple structure and is not easy to fall off. In order to overcome the shortcomings of the above-mentioned prior art, the purpose of the utility model is to provide a nut anti-slipping device to ensure that the nut is loosened to a certain extent and is protected by the screw. The nut can be easily detached from the screw by means of a screw thread, a nut, a flat washer, and a spring washer; a threaded hole is formed on the top of the screw; the threaded hole matches the screw; when the nut is screwed onto the screw, a flat washer and a spring washer are installed on the screw at the outer end of the nut, and the outer diameter of the flat washer 3 is larger than the diameter of the threaded opening of the nut 2. Compared with the prior art, the nut can be easily detached by means of a three-combination screw limiter, and the nut can be easily detached from the screw by means of a screw thread.

[0004] However, the nut anti-slip device in the prior art CN217055912U patent has a poor anti-retraction effect and a relatively simple structure, and cannot play a role in actual use, causing inconvenience to the user. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The utility model aims to provide a bolt structure with a nut anti-retraction device to solve the problem that the anti-retraction effect of the nut anti-slipping device proposed in the above background technology is not good.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bolt structure with anti-nut retreat, the bolt structure with anti-nut retreat includes a hexagonal bolt head, a connecting ring, a nut shell, a bolt shaft, an internal texture of the nut, a pressure contact block, an axial positioning rod, a locking tooth, a moving block, a fixing buckle, a limit block, a movable spring, and a nut end, the connecting ring is fixedly connected to the lower end of the hexagonal bolt head, and the nut shell is fixedly connected to the lower end of the connecting ring.

[0009] Preferably, the bolt shaft is fixedly connected to the lower end of the connecting ring, and the internal texture of the nut is fixedly connected to the inside of the nut housing.

[0010] Preferably, the pressure contact block is fixedly connected to the front end of the nut housing, the axial positioning rod is fixedly connected to the left end of the nut housing, the top of the bolt is a hexagonal bolt head, which provides a convenient means of tightening and loosening for the user, and the lower end of the hexagonal bolt head is fixedly connected to the connecting ring, which is further tightly connected to the bolt shaft and the nut housing.

[0011] Preferably, the locking tooth is fixedly connected to the inside of the nut housing, the moving block is movably connected to the front end of the locking tooth, and the external thread of the bolt shaft cooperates with the internal texture of the nut in the nut housing to form a basic fastening structure.

[0012] Preferably, the fixing buckle is fixedly connected to the left and right ends of the moving block, the limit block is fixedly connected to the left and right sides of the fixing buckle, and the pressure contact block is designed to sense the pressure applied by the bolt shaft. This design allows the nut to better absorb and disperse the force when subjected to external force, thereby reducing self-loosening caused by vibration or other external factors.

[0013] Preferably, the movable spring is movably connected to the rear end of the moving block, and the nut end is fixedly connected to the left end of the nut housing. When the bolt is tightened, the moving block is pushed inward, increasing the tightness of the movable spring, so that it can tightly engage with the internal texture of the nut through the locking teeth. This engagement effectively prevents the nut from rotating or loosening on its own when vibrated or subjected to external force.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The bolt structure with nut anti-retraction, the tight combination of the hexagonal bolt head and the connecting ring in the structure, provides a solid and reliable top connection, ensuring the stability of the bolt during use. The bolt shaft and the internal texture of the nut in the nut housing are closely matched to form a basic threaded connection. This basic threaded structure shows extremely high stability when subjected to tensile and compressive forces;

[0016] 2. The bolt structure with nut anti-retraction and the design of the pressure contact block enable the nut to effectively sense and transmit pressure, reducing the risk of self-loosening due to vibration or external force. The combination of the locking teeth and the moving block forms an effective locking mechanism. When the bolt is tightened, this mechanism can prevent the nut from rotating, thereby avoiding the nut from loosening by itself;

[0017] 3. The bolt structure with nut anti-retraction and the introduction of the axial positioning rod provide precise axial positioning, ensuring the precise position control of the nut during the tightening process. The design of the fixing buckle and the limit block limits the range of motion of the moving block, ensuring that the locking mechanism works in the correct position, enhancing the overall accuracy and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the anti-recoil module of the utility model;

[0021] Figure 4 This is a schematic diagram of the bolt module structure of the utility model.

[0022] In the figure: 1. Hexagonal bolt head; 2. Connecting ring; 3. Nut housing; 4. Bolt shaft; 5. Internal texture of nut; 6. Pressure contact block; 7. Axial positioning rod; 8. Locking teeth; 9. Moving block; 10. Fixing buckle; 11. Limiting block; 12. Movable spring; 13. Nut end. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 4The utility model provides a technical solution: a bolt structure with nut anti-retraction, the bolt structure with nut anti-retraction comprises a hexagonal bolt head 1, a connecting ring 2, a nut shell 3, a bolt shaft 4, a nut internal texture 5, a pressure contact block 6, an axial positioning rod 7, a locking tooth 8, a moving block 9, a fixing buckle 10, a limit block 11, a movable spring 12, and a nut end 13. The connecting ring 2 is fixedly connected to the lower end of the hexagonal bolt head 1, the nut shell 3 is fixedly connected to the lower end of the connecting ring 2, the bolt shaft 4 is fixedly connected to the lower end of the connecting ring 2, the nut internal texture 5 is fixedly connected to the inside of the nut shell 3, and the top of the bolt is a hexagonal bolt head 1, which provides a convenient means of tightening and loosening for users, the lower end of the hexagonal bolt head 1 is fixedly connected to the connecting ring 2, and the connecting ring 2 is further tightly connected to the bolt shaft 4 and the nut shell 3, and the external thread of the bolt shaft 4 cooperates with the nut internal texture 5 in the nut shell 3 to form a basic fastening structure.

[0025] The pressure contact block 6 is fixedly connected to the front end of the nut housing 3, the axial positioning rod 7 is fixedly connected to the left end of the nut housing 3, the locking tooth 8 is fixedly connected to the inside of the nut housing 3, and the moving block 9 is movably connected to the front end of the locking tooth 8. At the front end of the nut housing 3, the pressure contact block 6 is designed to sense the pressure applied by the bolt shaft 4. This design allows the nut to better absorb and disperse the force when subjected to external force, thereby reducing self-loosening caused by vibration or other external factors. The axial positioning rod 7 is fixed to one side of the nut housing 3, providing a stable axial position for the entire nut.

[0026] The fixing buckle 10 is fixedly connected to the left and right ends of the moving block 9, the limiting block 11 is fixedly connected to the left and right sides of the fixing buckle 10, the movable spring 12 is movably connected to the rear end of the moving block 9, and the nut end 13 is fixedly connected to the left end of the nut shell 3. The fixing buckle 10 is designed to be connected to both sides of the moving block 9 and cooperate with the limiting block 11 to further control and limit the range of movement of the moving block 9 to ensure that it is locked in the correct position and keep the nut stable in a fixed state. The last part of the nut is the nut end 13, which is fixed to one side of the nut shell 3, providing a closed external structure for the entire nut. This design not only enhances the strength of the overall structure.

[0027] Working principle: First, the top of the bolt is a hexagonal bolt head 1, which provides users with a convenient means of tightening and loosening. The lower end of the hexagonal bolt head 1 is fixedly connected to the connecting ring 2, and the connecting ring 2 is further tightly connected to the bolt shaft 4 and the nut housing 3. The external thread of the bolt shaft 4 cooperates with the internal texture 5 of the nut in the nut housing 3 to form a basic fastening structure. At the front end of the nut housing 3, the pressure contact block 6 is designed to sense the pressure applied by the bolt shaft 4. This design allows the nut to better absorb and disperse the force when subjected to external force, thereby reducing self-loosening caused by vibration or other external factors. The axial positioning rod 7 is fixed to one side of the nut housing 3, providing a stable axial position for the entire nut, ensuring that the nut will not deviate during the tightening process, and the locking teeth 8 inside the nut housing 3 are in contact with the movable The movable block 9 is combined to form the core anti-retraction mechanism of the nut. When the bolt is tightened, the movable block 9 is pushed inward, increasing the tightness of the movable spring 12, so that it is tightly engaged with the internal texture 5 of the nut through the locking teeth 8. This engagement effectively prevents the nut from rotating or loosening on its own when vibrated or subjected to external force. In addition, the fixing buckle 10 is designed to be connected to both sides of the movable block 9, and cooperate with the limit block 11 to further control and limit the range of movement of the movable block 9, ensuring that it is locked in the correct position and keeping the nut stable in a fixed state. The last part of the nut is the nut end 13, which is fixed to one side of the nut shell 3, providing a closed external structure for the entire nut. This design not only enhances the strength of the overall structure, but also improves the sealing and durability of the connection between the bolt and the nut.

[0028] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Simple modifications or equivalent substitutions of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. A bolt structure with a nut anti-retraction function, the bolt structure with a nut anti-retraction function comprising a hexagonal bolt head (1), a connecting ring (2), a nut housing (3), a bolt shaft (4), a nut internal texture (5), a pressure contact block (6) and an axial positioning rod (7), characterized in that: The connecting ring (2) is fixedly connected to the lower end of the hexagonal bolt head (1), the nut housing (3) is fixedly connected to the lower end of the connecting ring (2), the bolt shaft (4) is fixedly connected to the lower end of the connecting ring (2), and the nut internal texture (5) is fixedly connected to the inside of the nut housing (3).

2. A bolt structure with nut anti-retraction according to claim 1, characterized in that: The pressure contact block (6) is fixedly connected to the front end of the nut housing (3), and the axial positioning rod (7) is fixedly connected to the left end of the nut housing (3).

3. A bolt structure with nut anti-retraction according to claim 2, characterized in that: The locking tooth (8) is fixedly connected to the inside of the nut housing (3), and the moving block (9) is movably connected to the front end of the locking tooth (8).

4. A bolt structure with nut anti-retraction according to claim 3, characterized in that: The fixing buckle (10) is fixedly connected to the left and right ends of the moving block (9), and the limiting block (11) is fixedly connected to the left and right sides of the fixing buckle (10).

5. A bolt structure with nut anti-retraction according to claim 4, characterized in that: The movable spring (12) is movably connected to the rear end of the moving block (9), and the nut end (13) is fixedly connected to the left end of the nut housing (3).

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