Lock nut

Abstract

The utility model discloses a locknut which comprises a head bolt, a fixing assembly is arranged on the head bolt, the fixing assembly comprises a screw rod, a nut body, a groove, a rotating shaft, a cam and a handle, the screw rod is connected to one end of the head bolt, the nut body is connected to the screw rod in a threaded mode, and the groove is formed in the screw rod. One end of the nut body is tightly attached to one end of the head bolt, the groove is formed in the nut body, the rotating shaft is fixedly installed on the nut body, the cam is rotationally connected to the rotating shaft, the cam is tightly attached to the screw rod, the handle is connected to the cam, and the adjusting assembly is arranged on the screw rod. The adjusting assembly comprises an auxiliary connecting block, a protruding block and a main connecting block, the auxiliary connecting block is connected to the screw rod in a sliding mode, and the protruding block is connected to the auxiliary connecting block, so that the technical problem that the expected anti-loosening effect cannot be achieved in practical application in a traditional anti-loosening method such as using a spring washer mentioned in the background technology is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to nut technical field more specifically, it relates to a lock nut. BACKGROUND

[0002] In the prior art, traditional anti-loose methods such as using spring washers often fail to achieve the expected anti-loose effect in practical applications. The principle of spring washers is to absorb vibration through elastic deformation, which theoretically can prevent nut loosening, but in practice, the effect of this method is not ideal, and nut loosening still occurs frequently, especially in high-vibration, frequent temperature change or long-term use environments.

[0003] Secondly, the existing nut design generally lacks adaptability, as they cannot effectively adjust to different lengths of screw rods, which seriously affects the universality and practicality of nuts. In practical applications, the length of the screw rod may vary due to different design requirements or installation environments, and fixed-size nuts cannot flexibly adapt to these changes, which may lead to installation difficulties, unstable connection or the need for additional parts for adjustment.

[0004] Finally, some existing lock nuts are designed with wedge blocks to tighten the bolts to increase friction and anti-loose effect, but this design method has a significant defect that it causes unbalanced stress between the bolt and the nut. The unilateral pressure of the wedge block causes uneven stress distribution at the threaded connection, and this unbalanced stress state may cause additional wear and stress concentration on the bolt and nut. SUMMARY

[0005] (I) Technical problems solved

[0006] To solve the problems in the prior art, the utility model provides a lock nut to solve the technical problem that traditional anti-loose methods such as using spring washers often fail to achieve the expected anti-loose effect in practical applications.

[0007] (II) Technical solutions

[0008] To achieve the above object, the utility model provides the following technical scheme: A lock nut, including head bolt, fixed assembly is arranged on the head bolt, the fixed assembly includes screw rod, nut body, recess, rotating shaft, cam and handle, the screw rod is connected in one end of head bolt, the nut body is connected in screw rod, and one end of nut body is close to one end of head bolt, the recess is set up on the nut body, the rotating shaft is fixedly installed on the nut body, the cam is rotatably connected on the rotating shaft, the cam is close to the screw rod, the handle is connected on the cam Screw rod is equipped with adjusting assembly, adjusting assembly includes from connecting block, protruding block and main connecting block, from connecting block is connected on screw rod, protruding block is connected on from connecting block, main connecting block is connected on one end of screw rod.

[0009] The utility model further sets up, one end of nut body is equipped with the connecting ring, one end of main connecting block is close to the connecting ring, through using the connecting ring makes the fixed process to screw rod is completed.

[0010] The utility model further sets up, and the main connecting block and from connecting block are equipped with the tension spring between connection, through using the tension spring makes the stretching process to it is completed.

[0011] The utility model further sets up, and the main connecting block is equipped with the connecting groove, the connecting groove is matched with protruding block, through using the connecting groove makes the fixed process to it is completed.

[0012] The utility model further sets up, and from connecting block is equipped with the protection assembly, the protection assembly includes screw groove, screw block and limit tube, the screw groove sets up on from connecting block, the screw block is connected in screw groove, through the cooperation of each component makes the rotation process to screw block is completed.

[0013] The utility model further sets up, and the screw rod is equipped with the adjusting nut of screw connection, one end of adjusting nut is close to one end of from connecting block, adjusting nut is equipped with adjusting groove, through the cooperation of each component makes the rotation process to adjusting nut is completed.

[0014] The utility model further sets up, and the side end of adjusting nut is equipped with adjusting screw hole, through using adjusting screw hole makes the fixed process to it is completed.

[0015] The utility model further sets up, and adjusting screw hole is equipped with adjusting bolt of screw connection, through using adjusting bolt makes the stable process to it is completed.

[0016] (Three) beneficial effect

[0017] Compared with the prior art, the present invention provides an anti-loosening nut, which has the following beneficial effects:

[0018] 1. The fixing component achieves effective anti-loosening of the nut through the ingenious cooperation of the screw, nut body, groove, rotating shaft, cam and handle. The operator can turn the handle to make the cam fit tightly against the screw, thereby increasing friction and locking effect. This design not only improves the anti-loosening effect, but also facilitates operation and adjustment. The cam design allows locking at different thread positions, increasing the flexibility of use.

[0019] 2. The adjustment assembly utilizes a combination of connecting blocks, protrusions, and main connecting blocks, along with a tension spring design, to adapt to screws of different lengths. The main connecting block and the connecting block can slide along the screw and are connected by a tension spring, allowing adjustment according to the screw length. The design of the connecting groove and protrusion provides additional fixing points, enhancing the stability of the adjustment. This design greatly improves the versatility of the nut, enabling it to adapt to screws of various lengths and overcoming the limitations of traditional nuts in this regard.

[0020] 3. The protective components, through the design of threaded grooves, threaded blocks, and limiting tubes, provide additional protection and adjustment functions for the nut. The addition of adjusting nuts and adjusting bolts allows for more precise adjustments and fixation. The design of the adjusting groove increases the convenience of operation, while the cooperation of the adjusting screw hole and adjusting bolt provides additional locking force. This multi-layered protection and adjustment mechanism not only improves the anti-loosening effect of the nut but also enhances the stability and reliability of the overall connection, while maintaining the flexibility of adjustment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an anti-loosening nut according to the present invention;

[0022] Figure 2 This is an enlarged structural diagram of A in this utility model;

[0023] Figure 3 This is a schematic diagram of the fixing component in this utility model;

[0024] Figure 4 This is a cross-sectional view of the structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the protective component in this utility model.

[0026] In the figure: 1, head bolt; 2, screw rod; 3, nut body; 4, groove; 5, rotating shaft; 6, cam; 7, handle; 8, from connecting block; 9, protruding block; 10, main connecting block; 11, connecting ring; 12, tension spring; 13, connecting groove; 14, threaded groove; 15, threaded block; 16, limiting tube; 17, adjusting nut; 18, adjusting groove; 19, adjusting screw hole; 20, adjusting bolt. DETAILED DESCRIPTION

[0027] It should be noted that the embodiments and features in the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0029] In the present application, unless otherwise stated, the orientation such as "up, down" is generally with respect to the direction shown in the drawings, or with respect to the vertical, perpendicular or gravity direction; similarly, for the convenience of understanding and description, "left, right" is generally with respect to the left and right shown in the drawings; "inner, outer" refers to the inner and outer with respect to the contour of each component itself, but the above orientation words are not used to limit the present application.

[0030] Please refer to Figures 1-5 A locking nut, comprising a head bolt 1, the head bolt 1 is provided with a fixing assembly, the fixing assembly comprises a screw rod 2, a nut body 3, a groove 4, a rotating shaft 5, a cam 6 and a handle 7, the screw rod 2 is connected to one end of the head bolt 1, the nut body 3 is threadedly connected to the screw rod 2, and one end of the nut body 3 is in close contact with one end of the head bolt 1, the groove 4 is formed in the nut body 3, the rotating shaft 5 is fixedly installed on the nut body 3, the cam 6 is rotatably connected to the rotating shaft 5, the cam 6 is in close contact with the screw rod 2, and the handle 7 is connected to the cam 6, a adjusting assembly is arranged on the screw rod 2, the adjusting assembly comprises a from connecting block 8, a protruding block 9 and a main connecting block 10, the from connecting block 8 is slidingly connected to the screw rod 2, the protruding block 9 is connected to the from connecting block 8, and the main connecting block 10 is slidingly connected to one end of the screw rod 2.

[0031] One end of the nut body 3 is provided with a connecting ring 11, and one end of the main connecting block 10 is in close contact with the connecting ring 11.

[0032] A tension spring 12 is arranged between the main connecting block 10 and the from connecting block 8.

[0033] A connecting groove 13 is formed in the main connecting block 10, and the connecting groove 13 is matched with the protruding block 9.

[0034] In the embodiment, during use, the screw rod 2 is manually screwed along the nut body 3, and as the screwing continues, the end of the head bolt 1 is tightly attached to the end of the nut body 3. At this time, the handle 7 is used to rotate the rotating shaft 5 of the cam 6 along the groove 4 of the nut body 3, and as the rotation continues, the cam 6 is tightly attached to the end of the screw rod 2, so that the fixing of the screw rod 2 is completed. Then, the main connecting block 10 is slid along the screw rod 2, so that the end of the main connecting block 10 is tightly attached to the nut body 3. When the screw rod 2 has different lengths, the slave connecting block 8 is slid along the screw rod 2, and during the sliding, the tension spring 12 between the main connecting block 10 and the slave connecting block 8 is stretched. When the screw rod 2 has a short length, the main connecting block 10 and the slave connecting block 8 are moved towards each other, and when they are in the appropriate position, the connecting groove 13 of the main connecting block 10 is tightly attached to the protrusion 9 of the slave connecting block 8, so that the adjustment is completed.

[0035] Please refer to Figures 4-5 , as a kind of lock nut implementation of protective assembly: slave connecting block 8 is provided with protective assembly, and the protective assembly includes threaded groove 14, threaded block 15 and limiting tube 16, threaded groove 14 is provided in slave connecting block 8, threaded block 15 is threadedly connected in threaded groove 14, and limiting tube 16 is connected with threaded block 15.

[0036] The screw rod 2 is provided with an adjusting nut 17, and the end of the adjusting nut 17 is tightly attached to the end of the slave connecting block 8. The adjusting nut 17 is provided with an adjusting groove 18.

[0037] The side end of the adjusting nut 17 is provided with an adjusting hole 19.

[0038] The adjusting hole 19 is provided with an adjusting bolt 20.

[0039] More specifically, during use, the adjusting nut 17 is screwed along the end of the screw rod 2, so that the end of the adjusting nut 17 is tightly attached to the end of the slave connecting block 8. When it is tightened, the adjusting bolt 20 is manually screwed along the adjusting hole 19 of the adjusting nut 17, so as to facilitate the tightening process, and the tightening of the adjusting nut 17 is completed, and the fixing of the head bolt 1 and the screw rod 2 is facilitated.

[0040] In summary, the whole device in use or operation: in the process of use, by artificial screw rod 2 along the nut body 3 threaded rotation process, and with the continuous rotation, so that the head bolt 1 one end and one end of the nut body 3 close to this time, using the handle 7 along the cam 6 at the nut body 3 groove 4 at the rotation axis 5 rotation process, and with the rotation process, so that the cam 6 and one end of the screw rod 2 close to make the completion of the fixed process for screw rod 2, then the main connecting block 10 along the screw rod 2 sliding movement process, so that the main connecting block 10 one end and the nut body 3 close to, and in response to different length of screw rod 2, from the connecting block 8 along the screw rod 2 sliding movement process, and in its sliding movement process, so that the main connecting block 10 and the extension spring 12 between the connecting block 8 stretch process, while responding to the length of the screw rod 2, so that the main connecting block 10 and the connecting block 8 move to the location close to, and in the appropriate position, so that the main connecting block 10 connecting groove 13 and the connecting block 8 convex block 9 close to, thus completing the adjustment process.

[0041] In use, the adjusting nut 17 along one end of the screw rod 2 threaded rotation process, so that the adjusting nut 17 one end and one end of the connecting block 8 close to, and in the process of tightening, by artificial adjusting bolt 20 along the adjusting nut 17 on the adjusting screw hole 19 threaded rotation process, thereby promoting the screwing process, so that the completion of the tightening process for adjusting nut 17, promote the fixed process for head bolt 1 and screw rod 2.

[0042] All the above-mentioned solutions, involving two components connected can be selected according to the actual situation of welding, bolt and nut connection, bolt or screw connection or other known connection mode, not here one by one, the above-mentioned are involved in the fixed connection, preferably consider is welding, although the embodiments of the utility model have been shown and described, for those skilled in the art, it can be understood that without departing from the principles and spirit of the utility model, a variety of changes, modifications, replacement and modification can be made to these embodiments, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A lock nut comprising a head bolt (1) characterised in that: The head bolt (1) is provided with a fixing assembly, the fixing assembly comprises a screw rod (2), a nut body (3), a groove (4), a rotating shaft (5), a cam (6) and a handle (7), the screw rod (2) is connected at one end of the head bolt (1), the nut body (3) is threadedly connected on the screw rod (2), and one end of the nut body (3) is in close contact with one end of the head bolt (1), the groove (4) is formed in the nut body (3), the rotating shaft (5) is fixedly installed on the nut body (3), the cam (6) is rotatably connected on the rotating shaft (5), the cam (6) is in close contact with the screw rod (2), and the handle (7) is connected on the cam (6).

2. A lock nut according to claim 1 wherein: One end of the nut body (3) is provided with a connecting ring (11), and one end of the main connecting block (10) is in close contact with the connecting ring (11).

3. A lock nut according to claim 2 wherein: A tension spring (12) is arranged between the main connecting block (10) and the slave connecting block (8).

4. A lock nut according to claim 3 wherein: A connecting groove (13) is formed in the main connecting block (10), and the connecting groove (13) is matched with the protruding block (9).

5. A check nut according to any one of claims 1 to 4, wherein: A protection assembly is arranged on the slave connecting block (8), the protection assembly comprises a threaded groove (14), a threaded block (15) and a limiting tube (16), the threaded groove (14) is formed in the slave connecting block (8), the threaded block (15) is threadedly connected in the threaded groove (14), and the limiting tube (16) is connected with the threaded block (15).

6. A lock nut according to claim 5 wherein: A threaded adjusting nut (17) is threadedly connected on the screw rod (2), one end of the adjusting nut (17) is in close contact with one end of the slave connecting block (8), and an adjusting groove (18) is formed in the adjusting nut (17).

7. A lock nut according to claim 6 wherein: An adjusting screw hole (19) is formed in the side end of the adjusting nut (17).

8. A lock nut according to claim 7 wherein: An adjusting screw bolt (20) is threadedly connected on the adjusting screw hole (19).

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