Self-locking check bolt

Abstract

The utility model provides a self-locking type check bolt, relates to self-locking type check bolt technical field, including fixed part, rotary disc and threaded rod, fixed part is provided with threaded hole, threaded hole both sides are provided with a plurality of spacing hole, threaded hole internal thread is connected with threaded rod, threaded rod upper end is provided with rotary disc, threaded rod upper end is provided with rotary disc, threaded rod upper end is provided with rotary disc. A cavity is formed in the threaded rod, and a limiting assembly is arranged on the threaded rod. According to the device, major potential safety hazards such as bolt loosening, fastening force reduction and connection failure caused by influences of vibration, impact and the like in the working process of the bolt can be prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of self-locking anti-loosening bolts, and more specifically, particularly relates to a self-locking anti-loosening bolt. Background Art

[0002] There are many names for bolts, and everyone may call them differently. Some people call them screws, some call them bolts, and some call them fasteners. Although there are so many names, the meaning is the same, they are all bolts. Bolts are a general term for fasteners. Bolts are tools that use the physical and mathematical principles of the circular rotation of the inclined surface of an object and the friction force to gradually fasten objects and parts. Bolts are indispensable in daily life and industrial production and manufacturing, and bolts are also called industrial rice. It can be seen that bolts are widely used. The application scope of bolts includes: electronic products, mechanical products, digital products, power equipment, and electromechanical mechanical products. Bolts are also used in ships, vehicles, water conservancy projects, and even chemical experiments. Anyway, bolts are used in many places. Especially the precision bolts used on digital products. Miniature bolts used in DVDs, cameras, glasses, clocks, electronics, etc.; general bolts for televisions, electrical products, musical instruments, furniture, etc.; as for engineering, construction, and bridges, large bolts and nuts are used; transportation equipment, airplanes, trams, cars, etc. are used in combination with large and small bolts. Bolts have important tasks in industry, and as long as there is industry on earth, the function of bolts will always be important.

[0003] Based on the above, the inventors found that there are the following problems:

[0004] Nowadays, bolts become loose, have reduced fastening force, and fail in connection due to vibration, impact, and other factors during operation, which poses a major safety hazard.

[0005] Therefore, in view of this, the existing structure and defects are studied and improved, and a self-locking anti-loosening bolt is provided to achieve a purpose with greater practical value. Utility Model Content

[0006] The purpose and effect of the self-locking anti-loosening bolt of the utility model are achieved by the following specific technical means:

[0007] A self-locking anti-loosening bolt comprises a fixing part, a rotating disk and a threaded rod, wherein the fixing part is provided with a threaded hole, a plurality of limit holes are provided on both sides of the threaded hole, a threaded rod is threadedly connected in the threaded hole, a rotating disk is provided at the upper end of the threaded rod, a plurality of rectangular grooves are provided on the outer side of the rotating disk, a chamber is provided in the threaded rod, and a limit assembly is provided on the threaded rod.

[0008] Furthermore, the limit assembly includes a handle, a limit rod, a connecting bolt and a connecting plate, the connecting bolt is located in the chamber, a connecting block is provided at the lower end of the connecting bolt, a spring is provided on the connecting bolt, a pair of limit blocks are provided on both sides of the chamber, a threaded groove is provided on the side of the limit block facing the connecting bolt, the connecting block matches the threaded groove, the upper end of the connecting bolt passes through the chamber and extends out of the rotating disk, a connecting plate is provided outside, a handle is provided on the upper end of the connecting plate, a number of limit rods are provided around the connecting bolt, one end of the limit rod is fixedly connected to the connecting plate, and the other end of the limit rod passes through the rectangular groove and is engaged in the limit hole.

[0009] Furthermore, the limiting rods match the limiting holes, and the limiting rods and the limiting holes are the same in number and position.

[0010] Furthermore, the diameter between the limit blocks is larger than the diameter of the spring, and the connecting block is threadedly connected to the thread groove.

[0011] Furthermore, the number of the rectangular grooves is the same as that of the limiting rods, and the diameter of the rectangular grooves is greater than the diameter of the limiting rods.

[0012] Furthermore, a rubber pad is provided on the threaded rod.

[0013] Furthermore, the limiting component is made of metal or plastic.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] When the threaded connection between the threaded rod and the threaded groove is completed, the handle is turned to drive the connection block and the limit block to be released. Under the action of the spring, the connecting plate approaches the rotating plate, driving the limit column on it to engage with the limit hole and the rectangular groove, thereby fixing the rotating plate and avoiding the rotating plate from rotating due to vibration, impact, etc., which causes the tightening force of the thread column and the threaded groove to decrease.

[0016] The design of the rubber pad can increase the friction between the rotating disk and the upper end surface of the fixing part, thereby enhancing the fixing effect of the rotating disk, thereby preventing the installed bolts from being reversed and affecting the fixing effect of the bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic cross-sectional view of a self-locking anti-loosening bolt.

[0018] Figure 2 The utility model is a self-locking anti-loosening bolt Figure 1 A is an enlarged schematic diagram.

[0019] Figure 3 The utility model is a three-dimensional schematic diagram of a self-locking anti-loosening bolt.

[0020] Figure 4 The utility model is a schematic diagram of an exploded view of a self-locking anti-loosening bolt.

[0021] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0022] 1. Fixing piece; 2. Limiting rod; 3. Connecting bolt; 4. Spring; 5. Rotating plate; 6. Fixing piece; 7. Chamber; 8. Limiting block; 9. Threaded groove; 13. Threaded rod; 14. Threaded hole; 15. Limiting hole; 16. Connecting plate; 17. Rubber pad; 18. Connecting block; 19. Rectangular groove. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0024] Example:

[0025] As attached Figure 1 To Attachment Figure 4 As shown:

[0026] The utility model provides a self-locking anti-loosening bolt, comprising a fixing member 6, a rotating disk 5 and a threaded rod 13, wherein the fixing member 6 is provided with a threaded hole 14, a plurality of limiting holes 15 are provided on both sides of the threaded hole 14, and the threaded hole 14 is internally threadedly connected with the threaded rod 13, a rotating disk 5 is provided at the upper end of the threaded rod 13, a plurality of rectangular grooves 19 are provided on the outer side of the rotating disk 5, a chamber 7 is provided in the threaded rod 13, and a limiting assembly is provided on the threaded rod 13.

[0027] Wherein, the limiting assembly comprises a handle 1, a limiting rod 2, a connecting bolt 3 and a connecting plate 16, the connecting bolt 3 is located in the chamber 7, a connecting block 18 is provided at the lower end of the connecting bolt 3, a spring 4 is sleeved on the connecting bolt 3, a pair of limiting blocks 8 are provided on both sides of the chamber 7, a threaded groove 9 is provided on the side of the limiting block 8 facing the connecting bolt 3, the connecting block 18 matches the threaded groove 9, the upper end of the connecting bolt 3 passes through the chamber 7 and extends out of the rotating disk 5, a connecting plate 16 is provided outside, a handle 1 is provided at the upper end of the connecting plate 16, a plurality of limiting rods 2 are provided around the connecting bolt 3, one end of the limiting rod 2 is fixedly connected to the connecting plate 16, and the other end of the limiting rod 2 passes through the rectangular groove 19 and is engaged in the limiting hole 15;

[0028] By fixing the position of the rotating disk 5 and pulling the handle 1 to move away from the threaded rod 13, the connecting bolt 3 is driven to move in the same direction in the chamber 7, and the connecting block 18 is driven to move in the same direction until the connecting block 18 contacts the lower end of the limit block 8 and compresses the spring 4. At this time, the limit rod 2 disengages from the limit groove 15 and moves to the upper end of the rotating disk 5. Then, the handle 1 is pulled and rotated to drive the connecting disk 16, the connecting bolt 3 and the connecting block 18 to rotate, so that the connecting block 18 is threadedly connected with the limit block 8. Through the matching design of the connecting block 18 and the limit block 8, the limit assembly can be fixed in the chamber 7. At this time, the limit assembly releases the fixation of the rotating disk 5. Rotating the rotating disk 5 again can disengage the threaded rod 13 on it from the thread groove 14.

[0029] The limiting rod 2 matches the limiting hole 15, and the limiting rod 2 and the limiting hole 15 are the same in number and position;

[0030] When the threaded connection between the threaded rod 13 and the threaded groove 14 is completed, the handle 1 is rotated to drive the connecting block 18 and the limit block 8 to be released. Under the action of the spring 4, the connecting plate 16 approaches the rotating plate 5, driving the limit column 2 thereon to engage with the limit hole 15 and the rectangular groove 19, thereby fixing the rotating plate 5 and avoiding the rotating plate 5 from rotating due to vibration, impact, etc., which would reduce the fastening force between the threaded column 13 and the threaded groove 14.

[0031] The diameter between the limit blocks 8 is larger than the diameter of the spring 4 , and the connecting block 18 is threadedly connected to the thread groove 9 .

[0032] Among them, the number of the rectangular grooves 19 is the same as that of the limiting rod 2, and the diameter of the rectangular grooves 19 is larger than the diameter of the limiting rod 2; through the design of the rectangular grooves 19, with the cooperation of the rectangular grooves 19, the limiting rod 2 and the limiting hole 15, when the limiting rod 2 and the limiting hole 15 are engaged, the rotating disk 5 can be fixed.

[0033] Wherein, a rubber pad 17 is provided on the threaded rod 13;

[0034] The design of the rubber pad 17 can increase the friction between the rotating disk 5 and the upper end surface of the fixing member 6, thereby enhancing the fixing effect of the rotating disk 5 and preventing the installed bolts from being reversed and affecting the fixing effect of the bolts.

[0035] Wherein, the material of the limit assembly is metal or plastic; the limit assembly can be adjusted according to the material of the bolt.

[0036] The specific usage and function of this embodiment are as follows:

[0037] The utility model fixes the position of the rotating disk 5 and pulls the handle 1 to move away from the threaded rod 13, thereby driving the connecting bolt 3 to move in the same direction in the chamber 7, and driving the connecting block 18 to move in the same direction until the connecting block 18 contacts the lower end of the limit block 8 and compresses the spring 4. At this time, the limit rod 2 disengages from the limit groove 15 and moves to the upper end of the rotating disk 5. Then, the handle 1 is pulled and rotated to drive the connecting disk 16, the connecting bolt 3 and the connecting block 18 to rotate, so that the connecting block 18 is threadedly connected with the limit block 8. Through the design of matching the connecting block 18 with the limit block 8, the limit assembly can be fixed in the chamber 7. At this time, the limit assembly releases the fixation of the rotating disk 5, and rotating the rotating disk 5 again can disengage the threaded rod 13 on it from the thread groove 14.

[0038] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.

Claims

1. A self-locking anti-loosening bolt, comprising a fixing member (6), a rotating disk (5) and a threaded rod (13), characterized in that: The fixing member (6) is provided with a threaded hole (14), a plurality of limiting holes (15) are provided on both sides of the threaded hole (14), a threaded rod (13) is connected to the threaded hole (14), a rotating disk (5) is provided at the upper end of the threaded rod (13), a plurality of rectangular grooves (19) are provided on the outer side of the rotating disk (5), a chamber (7) is provided inside the threaded rod (13), and a limiting assembly is provided on the threaded rod (13).

2. A self-locking anti-loosening bolt as claimed in claim 1, characterized in that: The limiting assembly comprises a handle (1), a limiting rod (2), a connecting bolt (3) and a connecting plate (16); the connecting bolt (3) is located in the chamber (7); a connecting block (18) is provided at the lower end of the connecting bolt (3); a spring (4) is sleeved on the connecting bolt (3); a pair of limiting blocks (8) are provided on both sides of the chamber (7); a threaded groove (9) is provided on the side of the limiting block (8) facing the connecting bolt (3); the connecting block (18) matches the threaded groove (9); the upper end of the connecting bolt (3) passes through the chamber (7) and extends out of the rotating disk (5); a connecting plate (16) is provided outside the rotating disk (5); a handle (1) is provided at the upper end of the connecting plate (16); a plurality of limiting rods (2) are provided around the connecting bolt (3); one end of the limiting rod (2) is fixedly connected to the connecting plate (16); the other end of the limiting rod (2) passes through the rectangular groove (19) and is engaged in the limiting hole (15).

3. A self-locking anti-loosening bolt as claimed in claim 2, characterized in that: The limiting rod (2) matches the limiting hole (15), and the limiting rod (2) and the limiting hole (15) are identical in number and position.

4. A self-locking anti-loosening bolt as claimed in claim 2, characterized in that: The diameter between the limit blocks (8) is greater than the diameter of the spring (4), and the connection block (18) is threadedly connected to the thread groove (9).

5. A self-locking anti-loosening bolt as claimed in claim 2, characterized in that: The number of the rectangular grooves (19) is the same as the number of the limiting rods (2), and the diameter of the rectangular grooves (19) is greater than the diameter of the limiting rods (2).

6. A self-locking anti-loosening bolt as claimed in claim 1, characterized in that: A rubber pad (17) is provided on the threaded rod (13).

7. A self-locking anti-loosening bolt as claimed in claim 1, characterized in that: The material of the limiting component is metal or plastic.

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