Anti-loosening locking nut

Abstract

The utility model relates to the technical field of nuts, in particular to an anti-loosening locking nut which comprises a nut body and a bolt matched with the nut body, a first channel is formed in the surface of one side of the nut body, a first groove is formed in the surface of one side of the bolt, a first fixing block is arranged in the first channel, one end of the first fixing block extends into the first groove, and the other end of the first fixing block extends into the first groove. A sliding groove is formed in the lower surface of the first fixing block, a positioning groove is formed in the upper inner wall of the front portion of the sliding groove, clamping assemblies are arranged in the first containing groove and the second channel, and an anti-loosening locking assembly is arranged on the lower surface of the nut. The integrity of the nut cannot be damaged by the first channel and the second channel, and the nut cannot be damaged; and when the nut vibrates, the nut cannot rotate in the circumferential direction through fixing of the first fixing block and the fixing bolt, and it is ensured that the nut and the bolt are firmly connected.

Description

Technical Field

[0001] The utility model relates to the technical field of nuts, in particular to an anti-loosening locking nut. Background Art

[0002] A nut is a screw cap, a part used for fastening by screwing with a bolt or a screw rod. It is an element that must be used in all manufacturing machinery. According to different materials, it is divided into several major types such as carbon steel, stainless steel, non-ferrous metals (such as copper), etc.

[0003] For example, the authorized announcement number "CN205315449U" is an anti-loosening fastening nut. Although by adjusting the middle part of the hole corresponding to the slot and pushing the movable locking block to lock with the machine screw, the uniformity of force and the firmness after locking are ensured. However, the movable locking block is arranged in the slot of the nut body and is movably connected with the slot, so the integrity of the nut is not good, and the nut is prone to uneven force, resulting in nut damage. Moreover, when the nut is vibrating, it will also rotate circumferentially, causing the connection between the nut and the bolt to become loose. Content of the Utility Model

[0004] The purpose of the utility model is to solve the defects existing in the prior art, and to provide an anti-loosening locking nut.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] Design an anti-loosening locking nut, including a nut and a bolt matching with it. One side surface of the nut is provided with a first channel, the cross-section of the first channel is rectangular, one side surface of the bolt is provided with a first groove, the first channel is internally provided with a first fixing block, the cross-section shape of the rear part of the first fixing block is rectangular, one end of the first fixing block extends into the first groove, the lower surface of the first fixing block is provided with a sliding groove, the upper inner wall of the front part of the sliding groove is provided with a positioning groove, the lower surface of the nut is provided with a first receiving groove, the upper inner wall of the first receiving groove is provided with a second channel, the second channel is communicated with the first channel, and a clamping component is arranged inside the first receiving groove and the second channel. The upper end of the clamping component is clamped with the positioning groove, and an anti-loosening locking component is arranged on the lower surface of the nut.

[0007] Preferably, the clamping component includes a second fixing block. A first spring is arranged between the upper surface of the lower part of the second fixing block and the upper inner wall of the first receiving groove. An installation cavity is arranged inside the second fixing block. A second spring is arranged on the lower inner wall of the installation cavity. The upper end of the second spring is provided with a connecting block. The connecting block is slidably connected with the inner wall of the installation cavity. The upper surface of the connecting block is provided with a steel ball. The steel ball penetrates through the upper inner wall of the installation cavity and abuts against the positioning groove. The lower surface of the second fixing block is provided with a first disassembly block.

[0008] Preferably, one end of the first channel is provided with a second accommodation groove, the front part of the first fixing block is arranged in the second accommodation groove, and a second detachable block is provided on the front surface of the first fixing block.

[0009] Preferably, the anti-loosening locking assembly includes an additional block, a plurality of through holes are provided on the surface of the additional block, a plurality of second grooves are provided on the surface of the bolt corresponding to the through holes one by one, a plurality of fixing bolts are provided outside the additional block, the fixing bolts penetrate through the through holes and are threadedly connected with the second grooves, and a detachable groove is provided on the front surface of the fixing bolt.

[0010] Preferably, the surface of the additional block provided with the through holes is an installation surface, and the installation surface is a flat surface.

[0011] Preferably, a plurality of convex blocks are provided on the upper surface of the nut.

[0012] The anti-loosening locking nut proposed by the present utility model has the beneficial effects that: the first channel and the second channel provided do not damage the integrity of the nut, the nut will not have uneven stress, and the nut will not be damaged; after the nut and the bolt are fastened, by inserting the first fixing block into the first channel and the first groove in sequence, and then performing clamping and fixing through the provided clamping assembly, and the provided anti-loosening locking assembly, the nut is fastened by passing the fixing bolt through the through hole and then threadedly connecting with the second groove. When the nut vibrates, through the fixation of the first fixing block and the fixing bolt, the nut will not rotate circumferentially, ensuring the firm connection between the nut and the bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the connection relationship between the nut and the bolt of the present utility model;

[0014] Figure 2 is a structural cross-sectional view of the present utility model;

[0015] Figure 3 is an enlarged view of position A of the present utility model;

[0016] Figure 4 is a schematic structural diagram of the first fixing block of the present utility model.

[0017] In the figure: nut 1, bolt 2, first channel 3, first groove 4, first fixing block 5, sliding groove 6, positioning groove 7, first accommodation groove 8, second channel 9, second fixing block 10, first spring 11, installation cavity 12, second spring 13, connecting block 14, steel ball 15, first detachable block 16, second accommodation groove 17, second detachable block 18, additional block 19, through hole 20, second groove 21, fixing bolt 22, detachable groove 23, installation surface 24, convex block 25. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Referring to Figures 1-4 , a loosening-preventing locking nut includes a nut 1 and a bolt 2 that matches it. A first channel 3 is provided on one side surface of the nut 1. The cross-section of the first channel 3 is rectangular. A first groove 4 is provided on one side surface of the bolt 2. A first fixing block 5 is provided inside the first channel 3. The cross-sectional shape of the rear part of the first fixing block 5 is rectangular. The cross-section of the first channel 3 being rectangular and the cross-sectional shape of the rear part of the first fixing block 5 being rectangular can ensure that the first fixing block 5 does not rotate, facilitating the clamping of the clamping component on the positioning groove 7. One end of the first fixing block 5 extends into the first groove 4. A sliding groove 6 is provided on the lower surface of the first fixing block 5. The function of the sliding groove 6 is to limit the clamping component. A positioning groove 7 is provided on the upper inner wall of the front part of the sliding groove 6. A first receiving groove 8 is provided on the lower surface of the nut 1. A second channel 9 is provided on the upper inner wall of the first receiving groove 8. The second channel 9 communicates with the first channel 3. A clamping component is provided inside the first receiving groove 8 and the second channel 9. The upper end of the clamping component is clamped with the positioning groove 7. A loosening-preventing locking component is provided on the lower surface of the nut 1.

[0020] The clamping component includes a second fixing block 10. A first spring 11 is provided between the upper surface of the lower part of the second fixing block 10 and the upper inner wall of the first receiving groove 8. The first spring 11 serves to reset the second fixing block 10. An installation cavity 12 is provided inside the second fixing block 10. A second spring 13 is provided on the lower inner wall of the installation cavity 12. A connecting block 14 is provided at the upper end of the second spring 13. The connecting block 14 is slidably connected to the inner wall of the installation cavity 12. A steel ball 15 is provided on the upper surface of the connecting block 14. The steel ball 15 penetrates the upper inner wall of the installation cavity 12 and abuts against the positioning groove 7. A first disassembly block 16 is provided on the lower surface of the second fixing block 10. After the nut 1 and the bolt 2 are tightened, when the first fixing block 5 is inserted into the first channel 3 and the first groove 4, the steel ball 15 slides inside the sliding groove 6. When the steel ball 15 reaches the positioning groove 7, under the action of the second spring 13, the steel ball 15 is clamped with the positioning groove 7. When it is necessary to separate the nut 1 from the bolt 2, use pliers to clamp the first disassembly block 16 and pull the second fixing block 10 downward to make the steel ball 15 disengage from the positioning groove 7. Then, the first fixing block 5 can be pulled outward to make the first fixing block 5 disengage from the first groove 4. The second fixing block 10 is reset under the action of the first spring 11, facilitating the next clamping of the first fixing block 5.

[0021] One end of the first channel 3 is provided with a second receiving groove 17. The front part of the first fixing block 5 is arranged in the second receiving groove 17. The second receiving groove 17 can conceal the front part of the first fixing block 5. The front surface of the first fixing block 5 is provided with a second detachable block 18. When operating on the first fixing block 5, the first fixing block 5 can be moved by clamping the second detachable block 18 with pliers.

[0022] The anti-loosening locking assembly includes an additional block 19. The surface of the additional block 19 is provided with a plurality of through holes 20. The surface of the bolt 2 is correspondingly provided with a plurality of second grooves 21 one by one with the through holes 20. A plurality of fixing bolts 22 are arranged outside the additional block 19. The fixing bolts 22 penetrate through the through holes 20 and are threadedly connected with the second grooves 21. The front surface of the fixing bolt 22 is provided with a disassembly groove 23, which is convenient for a screwdriver to extend into the disassembly groove 23 to tighten or loosen the fixing bolt 22.

[0023] The surface of the additional block 19 provided with the through holes 20 is an installation surface 24, and the installation surface 24 is a flat surface, which is convenient for installing the fixing bolts 22.

[0024] The upper surface of the nut 1 is provided with a plurality of convex blocks 25. The convex blocks 25 play a role in increasing the friction between the fixed component and the nut 1.

[0025] Working principle: The provided first channel 3 and second channel 9 do not damage the integrity of the nut 1. The nut 1 will not have the situation of uneven force, and the nut 1 will not be damaged. After the nut 1 and the bolt 2 are tightened, the first fixing block 5 is sequentially inserted into the first channel 3 and the first groove 4, and then is clamped and fixed by the provided clamping assembly. For the provided anti-loosening locking assembly, the fixing bolt 22 passes through the through hole 20 and is then threadedly connected with the second groove 21, so that the nut 1 is fastened. When the nut 1 vibrates, due to the fixation of the first fixing block 5 and the fixing bolt 22, the nut 1 will not rotate circumferentially, ensuring the firm connection between the nut 1 and the bolt 2.

[0026] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An anti-loosening locking nut, comprising a nut (1) and a matching bolt (2), characterized in that: A first channel (3) is provided on one side surface of the nut (1), and the cross section of the first channel (3) is rectangular. A first groove (4) is provided on one side surface of the bolt (2). A first fixing block (5) is provided inside the first channel (3), and the cross section of the rear portion of the first fixing block (5) is rectangular. One end of the first fixing block (5) extends into the first groove (4). A sliding groove (6) is provided on the lower surface of the first fixing block (5), and a positioning groove (7) is provided on the upper inner wall of the front portion of the sliding groove (6). A first accommodating groove (8) is provided on the lower surface of the nut (1), and a second channel (9) is provided on the upper inner wall of the first accommodating groove (8). The second channel (9) is communicated with the first channel (3). A clamping assembly is provided inside the first accommodating groove (8) and the second channel (9), and the upper end of the clamping assembly is clamped with the positioning groove (7). An anti-loosening locking assembly is provided on the lower surface of the nut (1).

2. The anti-loosening locking nut according to claim 1, characterized in that: The clamping assembly comprises a second fixing block (10), a first spring (11) is arranged between the upper surface of the lower part of the second fixing block (10) and the upper inner wall of the first accommodating groove (8), a mounting cavity (12) is arranged inside the second fixing block (10), a second spring (13) is arranged on the lower inner wall of the mounting cavity (12), a connecting block (14) is arranged at the upper end of the second spring (13), the connecting block (14) is slidably connected to the inner wall of the mounting cavity (12), a steel ball (15) is arranged on the upper surface of the connecting block (14), the steel ball (15) passes through the upper inner wall of the mounting cavity (12) and abuts against the positioning groove (7), and a first disassembly block (16) is arranged on the lower surface of the second fixing block (10).

3. The anti-loosening locking nut according to claim 1, characterized in that: A second accommodating groove (17) is provided at one end of the first channel (3), the front portion of the first fixing block (5) is arranged in the second accommodating groove (17), and a second disassembly block (18) is provided on the front surface of the first fixing block (5).

4. The anti-loosening locking nut according to claim 1, characterized in that: The anti-loosening locking assembly comprises an additional block (19), a plurality of through holes (20) are provided on the surface of the additional block (19), a plurality of second grooves (21) are provided on the surface of the bolt (2) in one-to-one correspondence with the through holes (20), a plurality of fixing bolts (22) are provided on the outside of the additional block (19), the fixing bolts (22) pass through the through holes (20) and are threadedly connected to the second grooves (21), and a disassembly groove (23) is provided on the front surface of the fixing bolts (22).

5. The anti-loosening locking nut according to claim 4, characterized in that: The surface of the additional block (19) on which the through hole (20) is arranged is a mounting surface (24), and the mounting surface (24) is a plane.

6. The anti-loosening locking nut according to claim 1, characterized in that: The upper surface of the nut (1) is provided with a plurality of protrusions (25).

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