CN222185401U

CN222185401U - Anti-loosening nut assembly

Info

Publication number: CN222185401U
Application number: CN202421089336.5U
Authority: CN
Inventors: 陈德通; 李木盛; 周学余
Original assignee: Wenzhou Datong Metal Products Co ltd
Current assignee: Wenzhou Datong Metal Products Co ltd
Priority date: 2024-05-20
Filing date: 2024-05-20
Publication date: 2024-12-17
Anticipated expiration: 2034-05-20

Abstract

The utility model provides a locknut assembly, which comprises a nut body and an outer fixing sleeve, wherein the outer fixing sleeve is sleeved on the outer side of the nut body, the outer fixing sleeve is fixedly connected with the nut body in the circumferential direction of the nut body, and limiting holes penetrating through two sides of the outer fixing strip are formed in the outer fixing strip. The nut is sleeved with an outer fixing sleeve which is fixed with the nut in the circumferential direction, and the outer fixing sleeve is provided with a structure which can form fixed connection with a fixing surface, so that the nut is prevented from rotating, and the purpose of preventing looseness is achieved.

Description

Locknut assembly

Technical Field

The utility model relates to the technical field of fasteners, in particular to a locknut assembly.

Background

The nut is a part which is screwed with a bolt or a screw rod to play a role in fastening. The nut is a part for tightly connecting mechanical equipment, and the nut and the bolt with the same specification can be connected together through the inner threads.

Under the long-time use of the nut, the nut is affected by the vibration of mechanical equipment and is very easy to loosen, so that the connection between the bolt and the nut is not tight enough to further influence the operation of the machine,

Therefore, it is necessary to design a locknut, if a limiting hole parallel to the axial direction of the locknut can be arranged on the locknut, the limiting hole is connected with a hole on the fixing surface to form a limiting structure, so that the locknut is prevented from rotating, and the purpose of locking is achieved. However, the above-mentioned limiting holes are arranged on the nut to damage the overall structure of the nut and affect the structural strength of the nut, so how to arrange the above-mentioned limiting holes is a problem to be considered.

Disclosure of utility model

The utility model provides a locknut assembly aiming at the problems pointed out in the background art so as to solve the technical problems.

The technical scheme of the utility model is realized as follows:

The locknut assembly comprises a nut body and further comprises an outer fixing sleeve, wherein the outer fixing sleeve is sleeved on the outer side of the nut body, the outer fixing sleeve is fixedly connected with the nut body in the circumferential direction of the nut body, and limiting holes penetrating through two sides of the outer fixing strip are formed in the outer fixing strip.

The utility model further provides that the nut body is a hexagon nut, the outer fixing sleeve is cylindrical, and a hexagon through hole matched with the nut body is formed in the inner side of the outer fixing sleeve.

The utility model further provides that a plurality of limiting holes are arranged, and the limiting holes are arranged at intervals in the circumferential direction of the nut body.

The utility model is further characterized in that a notch groove is arranged on the outer side wall of the outer fixing sleeve, and the notch groove penetrates through two ends of the outer fixing sleeve.

The utility model further provides that the limiting hole is internally connected with a limiting pin.

The utility model further provides that the nut body is connected to the inner side of the outer fixing sleeve in an adapting way.

The utility model is further characterized in that an annular limiting abutting ring is arranged on the inner side wall of the outer fixing sleeve.

The utility model further provides that the limiting abutting ring is provided with a plurality of breaking grooves which are arranged at intervals in the circumferential direction of the limiting abutting ring.

By adopting the technical scheme, the utility model has the beneficial effects that:

The anti-loose nut component provided by the utility model is characterized in that the outer fixing sleeve which is fixed with the outer fixing sleeve in the circumferential direction is sleeved outside the nut, and the outer fixing sleeve is provided with a structure which can form fixed connection with the fixing surface, so that the anti-loose nut component can prevent the rotation of the nut and prevent the rotation of the nut, thereby achieving the anti-loose purpose.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is an exploded view of the present utility model.

Fig. 3 is a side view of the present utility model.

Fig. 4 is a cross-sectional view A-A of fig. 3 in accordance with the present utility model.

Fig. 5 is a cross-sectional view of B-B in fig. 3 in accordance with the present utility model.

The reference numerals in the drawings show that the nut body 1, the outer fixing sleeve 2, the limiting hole 21, the notch groove 22, the limiting abutting ring 23, the breaking groove 24 and the limiting pin 3.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model is illustrated below with reference to fig. 1-5:

Embodiment 1A locknut assembly comprises a nut body 1, wherein the nut body 1 is a hexagon nut.

Still include external fixation cover 2, external fixation cover 2 is cylindrical, and the inboard of external fixation cover 2 is equipped with the hexagonal through-hole with the 1 adaptation of nut, and external fixation cover 2 cover is in the outside of nut body 1, and the inboard at external fixation cover 2 is connected to the 1 adaptation of nut, through hexagonal structure, is making the circumference of nut body 1, external fixation cover 2 and nut body 1 fixed connection.

The outer fixing sleeve 2 is provided with limiting holes 21 penetrating through two sides of the outer fixing sleeve, the central axis of the limiting holes 21 is parallel to the central axis of the nut body 1, six limiting holes 21 are arranged, and the six limiting holes 21 are arranged at intervals in the circumferential direction of the nut body 1. After the nut body 1 and the bolt are screwed down, the nut body 1 is abutted on the surface of the part or the component, a groove or a concave hole structure corresponding to the limiting hole 21 is arranged on the surface of the part or the component, the limiting pin 3 is connected in the limiting hole 21, the limiting pin 3 enters the groove or the concave hole structure on the surface of the part, and a structure for preventing the external fixing sleeve 2 from rotating is formed, so that the anti-loosening purpose of the nut body 1 is achieved. The limiting pin 3 can form interference connection with the limiting hole 21 and the groove or the concave hole, so that fixed connection is formed, or the groove or the concave hole is provided with internal threads, and the limiting pin 3 is in threaded connection with the groove or the concave hole.

The grooves or recesses on the face of the component part are only located in correspondence with the locations of the limiting holes 21, the number not being in correspondence, and the number of grooves or recesses may be one or two.

The outer side wall of the outer fixing sleeve 2 is provided with a notch groove 22, and the notch groove 22 penetrates through two ends of the outer fixing sleeve 2. Through adopting above-mentioned technical scheme, when the surface welding of external fixation cover 2 and spare part is fixed, breach groove 22 can be used for holding soldering tin for the surface welding of external fixation cover 2 and spare part is more firm stable. Six notch grooves 22 are arranged, and the six notch grooves 22 are arranged at intervals in the circumferential direction of the outer fixing sleeve 2.

The inner side wall of the outer fixing sleeve 2 is provided with an annular limiting abutting ring 23, a hole in the middle of the limiting abutting ring 23 is smaller than a threaded hole in the middle of the nut body 1, the nut body 1 abuts against the surface of a part through the limiting abutting ring 23, one limiting abutting ring 23 plays a role of a gasket, and the other limiting abutting ring 23 can prevent the outer fixing sleeve 2 from loosening along the axial direction of the nut body 1. The limiting abutting ring 23 is provided with a plurality of breaking grooves 24, the breaking grooves 24 are arranged at intervals in the circumferential direction of the limiting abutting ring 23, and the breaking grooves 24 can enhance the deformation capacity of the limiting abutting ring 23 and enhance the capacity of the limiting abutting ring as a gasket.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather to enable any modification, equivalent replacement, improvement or the like to be made within the spirit and principles of the utility model.

Claims

1. A locking nut assembly, comprising a nut body (1), characterized in that it also comprises an outer fixing sleeve (2), wherein the outer fixing sleeve (2) is sleeved on the outer side of the nut body (1), and the outer fixing sleeve (2) and the nut body (1) are fixedly connected in the circumferential direction of the nut body (1), and the outer fixing sleeve (2) is provided with limiting holes (21) penetrating through both sides thereof.

2. A locking nut assembly according to claim 1, characterized in that: the nut body (1) is a hexagonal nut, the outer fixing sleeve (2) is cylindrical, and the inner side of the outer fixing sleeve (2) is provided with a hexagonal through hole adapted to the nut body (1).

3. A locking nut assembly according to claim 2, characterized in that: there are a plurality of limiting holes (21), and the plurality of limiting holes (21) are arranged at intervals in the circumferential direction of the nut body (1).

4. A locking nut assembly according to claim 1, characterized in that: a notch groove (22) is provided on the outer side wall of the outer fixing sleeve (2), and the notch groove (22) is provided through both ends of the outer fixing sleeve (2).

5. The anti-loosening nut assembly according to claim 1, characterized in that a limiting pin (3) is connected inside the limiting hole (21).

6. A locking nut assembly according to claim 1, characterized in that the nut body (1) is adapted to be connected to the inner side of the outer fixing sleeve (2).

7. A locking nut assembly according to claim 1, characterized in that an annular limiting abutment ring (23) is provided on the inner side wall of the outer fixing sleeve (2).

8. A locking nut assembly according to claim 7, characterized in that: a separating groove (24) is provided on the limiting abutment ring (23), and a plurality of separating grooves (24) are provided and are arranged at intervals in the circumferential direction of the limiting abutment ring (23).