Dynamic mechanical fastening nut

Abstract

The utility model relates to the technical field of fastening nuts, in particular to a dynamic mechanical fastening nut which comprises a nut body, a screw rod is in threaded connection with the interior of the nut body, a fastening barrel is integrally connected to the bottom of the nut body, and an outer barrel is arranged on the outer side of the fastening barrel. According to the scheme, the auxiliary locking structure is arranged on the nut, so that locking operation between the nut and the screw rod can be achieved, the hidden danger of deformation defects caused by repeated extrusion of an elastic piece in the prior art is avoided, and the safety performance of the nut is improved. And therefore, the problem that the subsequent fastening operation of the nut is easily influenced is solved, and the fastening quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fastening nuts, in particular to a dynamic mechanical fastening nut. Background Art

[0002] A nut, also known as a nut, is a fastener with an internal thread, usually used in conjunction with a bolt or other fasteners with an external thread to achieve connection and fixing functions. The main function of a nut is to provide a stable connection point, through which its internal thread matches the external thread of the bolt to firmly connect two or more parts together. There are many types of nuts, which can be divided into many types according to their shape, size, material and purpose. Common types of nuts include hexagonal nuts, square nuts, round nuts, butterfly nuts, etc. These nuts have different characteristics and applicable scenarios, and can be selected according to specific needs.

[0003] In order to improve the connection stability of the nut and avoid the nut from loosening or displacement which may lead to connection failure, a variety of nuts with self-locking function have been developed on the market. Such nuts usually achieve the self-locking function by squeezing elastic parts. When installing and tightening the nut, the elastic part is squeezed, and the elastic part deforms and squeezes the bolts installed on the inside to achieve the purpose of locking and anti-slip. However, the elastic part may have the hidden danger of deformation defects after multiple squeezing, which may easily affect the subsequent tightening operation of the nut.

[0004] Therefore, it is necessary to design a dynamic mechanical fastening nut to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide a dynamic mechanical fastening nut to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A dynamic mechanical fastening nut comprises a nut, wherein the internal thread of the nut is connected to a screw rod, the bottom of the nut is integrally connected to a fastening cylinder, an external cylinder is arranged on the outside of the fastening cylinder, and an auxiliary locking structure is arranged between the external cylinder and the fastening cylinder.

[0008] As a preferred solution of the utility model, the auxiliary locking structure includes an adjusting screw connected to the external cylinder, a handle is fixedly connected to one side of the adjusting screw and located on the outside of the external cylinder, an elastic column is integrally fixedly connected to the side of the adjusting screw away from the handle, a return spring is fixedly connected to the outside of the elastic column, and a locking head is fixedly connected to the side of the elastic column away from the adjusting screw.

[0009] As a preferred solution of the utility model, the fastening cylinder is provided with a plurality of threaded holes used in conjunction with the adjusting screw, and the adjusting screw and the threaded holes are threadedly connected.

[0010] As a preferred solution of the utility model, a spring movable groove is further provided on a side of the interior of the fastening cylinder away from the threaded hole, and an elastic column and a return spring are embedded and installed inside the spring movable groove.

[0011] As a preferred solution of the utility model, the overall size of the elastic column and the return spring is larger than the overall size of the adjusting screw.

[0012] As a preferred solution of the utility model, the front end of the engaging head adopts a sharp structure design, and it is engaged and fixed with the inside of the thread groove on the outer surface of the screw.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] In view of the problems arising in the existing technical solutions, that is, the nut usually realizes the self-locking function by squeezing the elastic member, and when installing the fastening nut, the elastic member is squeezed, and the elastic member is deformed to squeeze the bolt engaged with the inner side to achieve the purpose of locking and anti-slip. However, the elastic member will have the hidden danger of deformation defects after multiple squeezing, which will easily affect the subsequent fastening operation of the nut. In the utility model, a dynamic mechanical fastening nut is set. When the mechanical fastening nut is used, the fastening nut is located at the outer end of the screw and rotated to achieve the coordination with the nut. When the nut needs to be locked in a certain position on the screw, the adjusting screw is rotated to make it disengage from the threaded hole during the rotation process, and then the front end engaging head is pushed and engaged and inserted into the threaded groove on the outer surface of the screw by the spring force of the reset spring itself, so that the nut and the screw are locked and fixed, thereby avoiding the deformation of the elastic member affecting the fastening stability of the nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0016] Figure 2 for Figure 1 Schematic diagram of internal cross section;

[0017] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of point A;

[0018] Figure 4 It is a structural schematic diagram of the external cylinder of the utility model.

[0019] In the figure: 1. nut; 2. screw; 3. fastening cylinder; 4. external cylinder; 5. auxiliary locking structure; 51. adjusting screw; 52. handle; 53. elastic column; 54. return spring; 55. snap-fit ​​head; 56. threaded hole; 6. spring movable groove. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively with reference to the relevant drawings below. Several embodiments of the utility model are given. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0024] For examples, see Figure 1-4 , the utility model provides a technical solution:

[0025] A dynamic mechanical fastening nut comprises a nut 1, wherein the internal thread of the nut 1 is connected to a screw rod 2, a fastening cylinder 3 is integrally connected to the bottom of the nut 1, an external cylinder 4 is arranged on the outside of the fastening cylinder 3, and an auxiliary locking structure 5 is arranged between the external cylinder 4 and the fastening cylinder 3.

[0026] Specifically, the auxiliary locking structure 5 includes an adjusting screw 51 connected to the external cylinder 4, a handle 52 is fixedly connected to one side of the adjusting screw 51 and located on the outside of the external cylinder 4, an elastic column 53 is integrally fixedly connected to the side of the adjusting screw 51 away from the handle 52, a return spring 54 is fixedly connected to the outside of the elastic column 53, and a snap-fit ​​head 55 is fixedly connected to the side of the elastic column 53 away from the adjusting screw 51; a plurality of threaded holes 56 used in conjunction with the adjusting screw 51 are opened on the fastening cylinder 3, and the adjusting screw 51 and the threaded holes 56 are threadedly connected; the inner side of the fastening cylinder 3 is far away from the handle 52, and the elastic column 53 is fixedly connected to the outer side of the elastic column 53, and the snap-fit ​​head 55 is fixedly connected to the side of the elastic column 53 away from the adjusting screw 51; A spring movable groove 6 is also provided on one side away from the threaded hole 56, and an elastic column 53 and a return spring 54 are embedded and installed inside the spring movable groove 6. Due to the spring force accumulated after the elastic column 53 and the return spring 54 are compressed, the engaging head 55 can be pushed into the corresponding groove on the outer surface of the screw rod 2 for locking after being released; the overall size of the elastic column 53 and the return spring 54 is larger than the overall size of the adjusting screw rod 51; the front end of the engaging head 55 adopts a sharp structure design, and it is meshed and fixed with the inside of the thread groove on the outer surface of the screw rod 2, so that it can be clamped on the thread groove more firmly;

[0027] The locking nut 51 is then released from the locking nut 56 and the locking nut 53 is released from the locking nut 56. The locking nut 51 is then released from the locking nut 56 and the locking nut 53 is released from the locking nut 56. The locking nut 51 is then released from the locking nut 56 and the locking nut 53 is released from the locking nut 56.

[0028] The working process of the utility model is as follows: when using the dynamic mechanical fastening nut, first hold the handle 52 end, and then pull it outward to compress the elastic column 53 and the return spring 54. After pulling to a certain extent, the thread groove on the outer surface of the adjusting screw 51 and the threaded hole 56 are threadedly matched, and then rotated accordingly to make the adjusting screw 51 and the thread groove inside the threaded hole 56 threadedly connected. At this time, the locking head 55 is moved away from the screw 2 and limited. At this time, the nut 1 can be located on the outer surface of the screw 2 and rotated. When locking is required later, the adjusting screw 51 is located inside the threaded hole 56 and moves in the opposite direction, so that the adjusting screw 51 is disengaged from the threaded hole 56. Then, under the spring force of the return spring 54, the locking head 55 in front is driven to be re-engaged in the thread groove on the outer surface of the screw 2 for re-locking.

[0029] 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 dynamic mechanical fastening nut, comprising a nut (1), characterized in that: The internal thread of the nut (1) is connected to a screw rod (2); the bottom of the nut (1) is integrally connected to a fastening cylinder (3); an external cylinder (4) is arranged on the outside of the fastening cylinder (3); and an auxiliary locking structure (5) is arranged between the external cylinder (4) and the fastening cylinder (3).

2. A dynamic mechanical fastening nut according to claim 1, characterized in that: The auxiliary locking structure (5) comprises an adjusting screw (51) connected to the external cylinder (4); a handle (52) is fixedly connected to one side of the adjusting screw (51) and located outside the external cylinder (4); an elastic column (53) is integrally fixedly connected to the side of the adjusting screw (51) away from the handle (52); a return spring (54) is fixedly connected to the outside of the elastic column (53); and a locking head (55) is fixedly connected to the side of the elastic column (53) away from the adjusting screw (51).

3. A dynamic mechanical fastening nut according to claim 1, characterized in that: The fastening cylinder (3) is provided with a plurality of threaded holes (56) for use with the adjusting screw rod (51), and the adjusting screw rod (51) and the threaded holes (56) are threadedly connected.

4. The dynamic mechanical fastening nut according to claim 1, characterized in that: A spring movable groove (6) is also provided on a side of the interior of the fastening cylinder (3) away from the threaded hole (56), and an elastic column (53) and a return spring (54) are embedded and installed inside the spring movable groove (6).

5. A dynamic mechanical fastening nut according to claim 2, characterized in that: The overall size of the elastic column (53) and the return spring (54) is greater than the overall size of the adjusting screw (51).

6. A dynamic mechanical fastening nut according to claim 2, characterized in that: The front end of the engaging head (55) is designed with a sharp structure, and is engaged and fixed inside the thread groove on the outer surface of the screw rod (2).

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