CN214465495U

CN214465495U - Anti-loosening assembly

Info

Publication number: CN214465495U
Application number: CN202023281928.1U
Authority: CN
Inventors: 高恒瑞; 李刚锋; 王彦宇; 冷哲; 刘昌毅
Original assignee: Beijing Honganshuidi Technology Development Co ltd
Current assignee: Beijing Honganshuidi Technology Development Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-10-22
Anticipated expiration: 2030-12-30

Abstract

The utility model belongs to the fastener field discloses a locking subassembly, locking subassembly include the nut and with nut threaded connection's screw member body, at least one adoption plastic material of nut and screw member body is made, one of them is provided with the joint arch for nut and screw member body, another is provided with the joint recess, the in-process that the relative screw member body of nut revolves soon, the joint arch can the joint in the joint recess, the joint recess has two cell walls, two cell walls set up along nut direction of rotation interval, two cell walls are used for limiting nut to rotate. When the clamping protrusion is clamped in the clamping groove, the nut is rotated, and the clamping protrusion at least abuts against one of the groove walls, so that the rotation of the nut is limited. And when the clamping protrusion is clamped with the clamping groove, the nut and the screw part body are screwed in place, and the nut and the screw part body do not need to be screwed continuously.

Description

Anti-loosening assembly

Technical Field

The utility model relates to a fastener field especially relates to a locking subassembly.

Background

Nuts, also known as nuts, are parts that are screwed together with bolts or screws to effect the fastening. Nuts are further classified into metal nuts and plastic nuts according to manufacturing materials. There are many anti-loosening measures for metal nuts, such as using thread glue, jackscrew, snap spring, double nut, etc., and these methods are commonly used in the field of anti-loosening of metal nuts.

The plastic nut is also called as a plastic nut, the anti-loosening mode of the metal nut has great limitation, the plastic nut is inconvenient to disassemble by using thread glue, the plastic thread is easy to damage, and the jackscrew and the clamp spring are difficult to apply to the plastic thread and easy to damage. The anti-loosening of the screw is realized by applying torque through a torque wrench to tighten the screw, but the plastic screw is easy to deform and difficult to ensure precision due to injection molding, and the screw is easy to damage due to the torque applied by the torque wrench.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a locking subassembly prevents the relative rotation of nut and screw member body.

To achieve the purpose, the utility model adopts the following technical proposal:

a check assembly, comprising:

the nut and with nut threaded connection's screwed part body, the nut with at least one adoption plastic material of screwed part body is made, the nut with one of them is provided with the joint arch of screwed part body, and another is provided with the joint recess, the nut is relative the screwed in-process of screwed part body, the joint arch can the joint in the joint recess, the joint recess has two cell walls, two the cell wall is followed nut direction of rotation interval sets up, two the cell wall is used for the restriction the nut rotates.

Preferably, the nut comprises a body and a cantilever arranged on the body, the body is in threaded connection with the screw part body, the cantilever has elasticity, the clamping protrusion is arranged on the cantilever, and the clamping groove is formed in the screw part body.

Preferably, the cantilever is arranged in a W shape, and the cantilever has two free ends, and the two free ends are connected to the body.

Preferably, the clamping projection is centrally disposed between the two free ends.

Preferably, the cantilever, the clamping protrusion and the body are integrally formed.

Preferably, a clamping mark is arranged on the threaded part body and used for marking the position of the clamping groove.

Preferably, the clamping groove is formed in one axial end of the threaded part body, and the clamping protrusion is arranged at one axial end of the nut and at least partially extends into the threaded hole of the nut.

Preferably, the clamping protrusions and the clamping grooves are provided with a plurality of clamping protrusions which are uniformly distributed in the circumferential direction of the nut, and the clamping protrusions are correspondingly inserted into the plurality of clamping grooves one by one.

Preferably, the nut further comprises an elastic piece, a supporting boss is arranged on the threaded piece body, the elastic piece is sleeved on the threaded piece body and supported on the supporting boss, the elastic piece is located between the nut and the threaded piece body, and the elastic piece abuts against the supporting boss and the nut respectively.

Preferably, the catching protrusion is made of an elastic material.

The utility model has the advantages that:

the utility model provides a locking subassembly, including the nut and with nut threaded connection's screw member body, at least one adoption plastic material of nut and screw member body is made, it is protruding to be provided with the joint on one of them, is provided with the joint recess on another, establishes the nut cover on the screw member body, and the in-process that the relative screw member body of nut was twisted soon makes the protruding joint of joint in the joint recess, realizes the joint of screw member body and nut. The clamping groove is provided with two groove walls which are arranged at intervals along the rotation direction of the nut, when the clamping bulge is clamped in the clamping groove, the nut is rotated, and the clamping bulge at least abuts against one groove wall, so that the rotation of the nut is limited. And when the clamping protrusion is clamped with the clamping groove, the nut and the screw element body are screwed in place, and the nut and the screw element body do not need to be screwed continuously.

Drawings

Fig. 1 is a schematic view of a state in which a nut is connected to a screw body in a locking assembly according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of a nut and a screw body in the anti-loosening assembly provided by the embodiment of the invention;

fig. 3 is a schematic structural view of a nut in the anti-loose assembly according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a screw body in the anti-loosening assembly according to an embodiment of the present invention.

In the figure:

1. a nut; 11. a body; 12. a cantilever; 13. clamping the bulges;

2. a screw body; 21. clamping the groove; 22. clamping the mark; 23. supporting the boss;

3. an elastic member.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

The embodiment provides a locking subassembly, relates to the fastener field, and as shown in fig. 1 and fig. 2, locking subassembly includes nut 1 and the screw body 2 with 1 threaded connection of nut, and this embodiment sets up the internal thread on nut 1, corresponds the external screw thread that sets up and 1 threaded connection of nut on screw body 2. At least one of the nut 1 and the screw thread part body 2 is made of a plastic material, the nut 1 is provided with a clamping protrusion 13, the screw thread part body 2 is provided with a clamping groove 21, the nut 1 is sleeved on the screw thread part body 2, the nut 1 is screwed relatively to the screw thread part body 2, and the clamping protrusion 13 is clamped in the clamping groove 21 to realize the clamping of the screw thread part body 2 and the nut 1. The clamping groove 21 is provided with two groove walls which are arranged at intervals along the rotation direction of the nut 1, when the clamping protrusion 13 is clamped in the clamping groove 21, the nut 1 is rotated again, and the clamping protrusion 13 at least abuts against one of the groove walls, so that the rotation of the nut 1 is limited. And when the clamping protrusion 13 and the clamping groove 21 are clamped, the nut 1 and the screw body 2 are already screwed into place, and the screwing is not required to be continued.

In particular, the snap projections 13 are made of an elastic material. When the clamping protrusion 13 abuts against the clamping groove 21 and is deformed by contact, the clamping protrusion 13 can be deformed again, damage to the clamping protrusion 13 caused by contact deformation is prevented, and the service life of the clamping protrusion 13 is prolonged.

Particularly, as shown in fig. 1 and 2, the plurality of clamping protrusions 13 and the plurality of clamping grooves 21 are arranged, the plurality of clamping protrusions 13 are uniformly distributed in the circumferential direction of the nut 1, and the plurality of clamping protrusions 13 are correspondingly inserted into the plurality of clamping grooves 21 one by one. Protruding 13 of joint and joint recess 21 all are provided with two in this embodiment, and two protruding 13 equipartitions of joint are in the circumferencial direction of nut 1, and the contained angle between two joint archs 13 is 180, and two joint archs 13 one-to-one pegs graft in two joint recesses 21. Set up two joint recess 21 and joint arch 13, increased locking effect of locking subassembly, improved the reliability of locking subassembly, even wherein have joint arch 13 or joint recess 21 damage in a set of, no way carry out the joint, another group joint arch 13 and joint recess 21 also can the joint, continue to accomplish locking work.

Further, as shown in fig. 2, the anti-loosening assembly further includes an elastic member 3, a supporting boss 23 is disposed on the screw member body 2, the elastic member 3 is sleeved on the screw member body 2 and supported on the supporting boss 23, the nut 1 is sleeved on the screw member body 2, the elastic member 3 is located between the nut 1 and the screw member body 2, and the elastic member 3 abuts against the supporting boss 23 and the nut 1 respectively. Through setting up elastic component 3, increased the locking effect between nut 1 and the screw member body 2, prevented nut 1 and the relative rotation of screw member body 2.

In particular, as shown in fig. 2 and 3, the clamping groove 21 is arranged on the end surface of the screw body 2 along the axial direction of the screw body 2, so that clamping is facilitated. The clamping protrusion 13 is arranged on the end face of the nut 1 along the axial direction of the nut 1 and can partially extend into a threaded hole of the nut 1, and the clamping protrusion 13 is conveniently clamped in the clamping groove 21.

In the process of screwing up the nut 1, the protruding 13 of joint contacts with the outer wall of screw member body 2 earlier, take place contact deformation, but continue to screw up nut 1 and lead to the protruding 13 fracture of joint easily, in order to solve this problem, as shown in fig. 3, nut 1 includes body 11 and cantilever 12,

body

11 and 2 threaded connection of screw member body, set up cantilever 12 on body 11, set up the protruding 13 of joint on cantilever 12 again, resist the protruding 13 deformation of joint through setting up cantilever 12, prevent joint protruding 13 and fracture because of contact deformation. Preferably, cantilever 12 is made of an elastic material, increasing the stress of cantilever 12, preventing it from deforming and failing to recover.

In particular, as shown in fig. 3, the cantilever 12 is disposed in a W shape, so that the problem of breakage of the cantilever 12 due to insufficient length thereof is solved along the length over which the cantilever 12 is deformed. The W-shaped cantilever 12 has two free ends, and the two free ends are connected to the body 11, so that the connection between the cantilever 12 and the body 11 is realized.

If the latch protrusion 13 is disposed at the end of the cantilever 12, which is far away from the free end, although the cantilever 12 can also be used to resist the deformation of the latch protrusion 13, the acting force applied to the cantilever 12 is directly concentrated on one of the free ends, which is easy to cause the one free end to be stressed too much or even broken, in order to solve the problem, as shown in fig. 3, the latch protrusion 13 is disposed between the two free ends, and the acting forces applied to the cantilever 12 by the latch protrusion 13 act on the two free ends, respectively, which not only improves the effect of the cantilever 12 in resisting the deformation of the latch protrusion 13, but also prevents the problem of breakage due to the excessive force applied to the one free end.

Specifically, the cantilever 12, the click projection 13, and the body 11 are integrally formed. The clamping protrusion 13 and the cantilever 12 are integrally formed, so that the processing steps are reduced, the cantilever 12 is not required to be arranged on the body 11 in a special structure or a special method, the integrally formed structure is designed, the number of parts is reduced, the production cost is reduced, and materials are saved.

Further, as shown in fig. 4, when the nut 1 is screwed down and screwed on the screw body 2, an operator cannot see the specific position of the clamping groove 21, does not know whether the clamping protrusion 13 and the clamping groove 21 are clamped or not, a clamping mark 22 is arranged above the screw body 2 corresponding to the clamping groove 21, and the clamping mark 22 is used for marking the position of the clamping groove 21, so that the operator can conveniently determine the position of the clamping groove 21.

In the description of the present embodiments, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In this embodiment, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A check assembly, comprising:

nut (1) and with nut (1) threaded connection's screw body (2), nut (1) with screw body (2) at least one adopts the plastic material to make, nut (1) with one of them is provided with joint arch (13) of screw body (2), and another is provided with joint recess (21), nut (1) is relative screw body (2) the in-process of twisting soon, joint arch (13) can joint in joint recess (21), joint recess (21) have two cell walls, two the cell wall is followed nut (1) direction of rotation interval sets up, two the cell wall is used for the restriction nut (1) rotates.

2. The anti-loosening assembly according to claim 1, wherein the nut (1) comprises a body (11) and a cantilever (12) arranged on the body (11), the body (11) is in threaded connection with the screw body (2), the cantilever (12) has elasticity, the clamping protrusion (13) is arranged on the cantilever (12), and the clamping groove (21) is arranged on the screw body (2).

3. Anti-loose assembly according to claim 2, characterized in that the cantilever (12) is provided in a W-shape, the cantilever (12) having two free ends, both of which are connected to the body (11).

4. Anti loose assembly according to claim 3, characterized in that the snap-in projection (13) is centrally arranged between the two free ends.

5. Anti-loose assembly according to claim 4, characterized in that the cantilever (12), the snap-in projection (13) and the body (11) are integrally formed.

6. The anti-loosening assembly according to claim 2, wherein a clamping mark (22) is arranged on the threaded piece body (2), and the clamping mark (22) is used for marking the position of the clamping groove (21).

7. The anti-loosening assembly according to claim 1, wherein the clamping groove (21) is arranged at one axial end of the threaded piece body (2), and the clamping protrusion (13) is arranged at one axial end of the nut (1) and at least partially extends into the threaded hole of the nut (1).

8. The anti-loosening assembly according to claim 7, wherein a plurality of clamping protrusions (13) and a plurality of clamping grooves (21) are arranged, the clamping protrusions (13) are uniformly distributed in the circumferential direction of the nut (1), and the clamping protrusions (13) are correspondingly inserted into the clamping grooves (21) one by one.

9. The anti-loosening assembly according to any one of claims 1 to 8, further comprising an elastic member (3), wherein a support boss (23) is provided on the threaded member body (2), the elastic member (3) is sleeved on the threaded member body (2) and supported on the support boss (23), the elastic member (3) is located between the nut (1) and the threaded member body (2), and the elastic member (3) abuts against the support boss (23) and the nut (1) respectively.

10. Anti-loose assembly according to any of claims 1 to 8, characterized in that the snap-in projection (13) is made of an elastic material.