CN211874921U

CN211874921U - Locking screw subassembly that takes off

Info

Publication number: CN211874921U
Application number: CN202020522371.7U
Authority: CN
Inventors: 韦继贺
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-10
Filing date: 2020-04-10
Publication date: 2020-11-06
Anticipated expiration: 2030-04-10

Abstract

The utility model discloses an anti-loosening screw assembly, including flange nut, flange screw, gasket, the gasket activity nestification is on flange screw's screw rod, flange screw's one end flange nut, be provided with skewed tooth an on flange nut's the flange edge, be provided with skewed tooth b on flange screw's the flange edge, be provided with skewed tooth an, skewed tooth b matched with shell fragment on a plurality of and flange nut, flange screw on the edge of gasket. Through the utility model discloses a design can prevent effectively that screw or nut pine from taking off, makes the work piece main part keep fastening, avoids because screw or nut pine take off the potential safety hazard that produces.

Description

Locking screw subassembly that takes off

Technical Field

The utility model belongs to the technical field of the fastener technique and specifically relates to an anti-loosening screw assembly is related to.

Background

At present, in the fastening of workpieces, a mode of mutually matching screws, bolts, gaskets and nuts is generally adopted to realize the fastening. In order to achieve the anti-loosening effect, anti-loosening nuts and anti-loosening gaskets are often adopted, namely inclined teeth are arranged on the bottom surface of the nut or the gasket, but in the using process, the gasket and the nut or the screw are separated from each other up and down due to the vibration of a workpiece, so that the nut or the screw rotates and is loosened, and the workpiece is loosened. It is therefore necessary to redesign the fit of the washer, nut, screw or bolt.

The above background disclosure is only provided to aid in understanding the concepts and technical solutions of the present invention, and it does not necessarily belong to the prior art of the present patent application, and it should not be used to assess the novelty and inventive step of the present application without explicit evidence that the above content has been disclosed at the filing date of the present patent application.

SUMMERY OF THE UTILITY MODEL

The utility model provides an anti-loosening screw assembly to above-mentioned technical problem.

In order to realize the purpose, the utility model adopts the following technical scheme:

the utility model provides an anti-loosening screw assembly, its includes flange nut, flange screw, gasket, the gasket activity nestification is on flange screw's screw rod, and flange screw's one end flange nut is connected to the gasket activity, be provided with skewed tooth an on flange nut's the flange edge, be provided with skewed tooth b on flange screw's the flange edge, be provided with skewed tooth a, skewed tooth b matched with shell fragment on a plurality of and flange nut, the flange screw on the edge of gasket.

Furthermore, a clamping groove is formed in a screw rod of the flange screw.

Further, the gasket comprises a gasket A and a gasket B; a convex block matched with the clamping groove of the flange screw is arranged in the inner ring of the gasket A; and a clamping block is arranged on the outer ring of the gasket B.

Further, the fixture block on the outer ring of the gasket B is bent downwards, and the bending direction is opposite to the position of the elastic sheet on the surface of the gasket B.

Furthermore, the number of the elastic sheets on the edge of the gasket is odd.

Further, the number of the elastic sheets on the edge of the gasket is even.

Furthermore, a certain included angle a is formed between two opposite elastic sheets on the edge of the gasket along the circumferential center.

Further, the included angle a is 0 ° to 8 °.

The utility model has the advantages of compared with the prior art:

(1) in the technical scheme, the flange nut, the flange screw and the gasket are matched with each other, the elastic sheet on the gasket clamps the inclined teeth on the flange nut or the flange screw, the screw or the nut is effectively prevented from loosening, the workpiece main body is kept fastened, and the potential safety hazard caused by loosening of the screw or the nut is avoided.

(2) The clamping groove on the flange screw is matched with the convex block in the inner ring of the gasket A to limit the rotation of the gasket A; and a clamping block on the outer ring of the gasket B is matched with the positioning hole of the workpiece main body to realize positioning.

Drawings

FIG. 1 is a view showing an embodiment of a screw assembly according to the present invention;

FIG. 2 is a view showing an embodiment of a screw assembly according to the present invention;

FIG. 3 is a view of a screw assembly according to the present invention;

FIG. 4 is a view of the screw assembly embodying structure D of the present invention;

FIG. 5 is a front view of the construction of shim A;

FIG. 6 is a top view of a shim A configuration;

FIG. 7 is an isometric view of a shim A configuration;

FIG. 8 is a front view of the construction of shim B;

FIG. 9 is a top view of the shim B structure;

fig. 10 is an isometric view of the shim B structure.

FIG. 11 is a view of the screw assembly embodying structure E of the present invention;

reference numerals: 1. a flange nut; 11. helical teeth a; 2. a gasket A; 21. a bump; 22. a spring sheet a; 3. a flange screw; 31. a card slot; 32. helical teeth b; 4. a gasket B; 41. a clamping block; 42. a spring sheet b; 5. a workpiece main body; 51. a screw hole; 52. positioning holes; 6. cross recessed pan head screw.

Detailed Description

In the following, an embodiment of the present invention will be described in detail with reference to the drawings, but it should be understood that the scope of the present invention is not limited by the embodiment. It should be understood that the directions "up", "down", "left" and "right" in the following embodiments of the present invention are all based on the position of the corresponding drawing. These directional terms are used for convenience of description only and do not represent limitations on the particular embodiments of the present invention. Unless otherwise specified, like reference numerals in the reference numerals refer to like structures.

As shown in fig. 1-10, the utility model relates to an anti-loosening screw assembly, including flange nut 1, flange screw 3, gasket A2, gasket A2 activity nestification is on flange screw 3's screw rod, but flange screw 3's one end flange nut 1 of connection, be provided with skewed tooth a11 on flange nut 1's the flange edge, be provided with skewed tooth b32 on flange screw 3's the flange edge, be provided with a plurality of shell fragment a22 on gasket A2's the edge. The elastic sheet a22 is used for matching with the inclined teeth a11 and the inclined teeth b32 on the flange nut 1 and the flange screw 3, and the flange nut 1 and the flange screw 3 are prevented from being reversely loosened by clamping the inclined teeth.

As shown in fig. 1 to 7, as a further optimization of the technical solution, a clamping groove 31 is arranged on a screw rod of the flange screw 3; as shown in fig. 5 to 7, the inner ring of the gasket a2 is provided with a protrusion 21 which is matched with the slot 31 of the flange screw 3. A certain included angle a is formed between two opposite elastic sheets a22 on the edge of the gasket A2 along the circumferential center, and the included angle a is 0-8 degrees. When a is 0 °, the two opposite spring pieces a22 can simultaneously catch the helical teeth; when 0 degrees < a <8 degrees, the two opposite elastic sheets a22 can independently clamp the inclined teeth, so that the flange nut 1 or the flange screw 3 can be screwed into a deeper thread pitch, and the fixed workpiece body 5 is firmer.

As shown in fig. 8 to 10, as a further optimization of the technical solution, the anti-loose screw assembly further includes a gasket B4, a plurality of elastic pieces B42 are also disposed on an edge of the gasket B4, and a certain included angle a is formed between two opposite elastic pieces B42 on the edge of the gasket B4 along a circumferential center, where the included angle a is 0 to 8 degrees; a fixture block 41 matched with the positioning hole 52 of the workpiece main body 5 is arranged on the outer ring of the gasket B4; the latch 41 is bent downward in the opposite direction to the position of the resilient piece B42 on the surface of the pad B4.

According to the fixed demand of the difference of work piece main part 5, the utility model relates to a when specifically using, including following several kinds of using-way:

(1) as shown in fig. 1, a flange nut 1, a flange screw 3, a gasket a2 and a gasket B4 are used in cooperation with each other; the gasket A2 and the gasket B4 are sleeved on a screw rod of the flange screw 3, the other end of the screw rod is connected with the flange nut 1, the gasket A2 is matched with the flange nut 1, and the gasket B4 is matched with the flange screw 3.

(2) As shown in fig. 2, the flange nut 1, the flange screw 3 and the gasket a2 are used in cooperation with each other, two gaskets a2 are sleeved on a screw rod of the flange screw 3, the other end of the screw rod is connected with the flange nut 1, wherein one gasket a2 is matched with the flange nut 1, and the other gasket is matched with the flange screw 3.

(3) As shown in fig. 3, the flange nut 1, the flange screw 3 and the gasket a2 are used in cooperation with each other, the gasket a2 is sleeved on a screw rod of the flange screw 3, the other end of the screw rod is connected with the flange nut 1, the gasket a2 is only matched with the flange nut 1, and the elastic sheet a22 on the gasket a2 is used for clamping the inclined teeth a11 on the flange nut 1 to prevent the nut from loosening.

(4) As shown in fig. 4, the flange screw 3 and the washer B4 are used separately in cooperation, the washer B4 is sleeved on the screw rod of the flange screw 3, the positioning hole 52 beside the screw hole 51 on the workpiece body 5 is matched with the clamping block 41 on the washer B4 to limit the position of the washer B4, then the flange screw 3 is screwed into the screw hole 51 of the workpiece body 5, and the oblique tooth B32 on the flange screw 3 is clamped by the elastic sheet B42 on the washer B4 to prevent the screw from loosening. In this way, the screw of the flange screw 3 does not have to be provided with a locking groove 31.

(5) Further, as shown in fig. 11, the engagement of the flange screw 3 with the washer a2 or the washer B4 is only a preferred embodiment thereof. During production, the gasket A2 or the gasket B4 can be used with other screws (such as a cross-recessed pan head screw 6 and an inner hexagon screw), and the edge of the pan head of the screw is provided with inclined teeth for mutually clamping with the gasket A2 or the gasket B4.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.

Claims

1. An anti-loosening screw assembly, comprising: the gasket is movably nested on a screw rod of the flange screw, one end of the flange screw is connected with the flange nut, oblique teeth a are arranged on the flange edge of the flange nut, oblique teeth b are arranged on the flange edge of the flange screw, and elastic pieces matched with the oblique teeth a and the oblique teeth b on the flange nut and the flange screw are arranged on the edge of the gasket.

2. The anti-loosening screw assembly of claim 1, wherein: and a clamping groove is formed in the screw rod of the flange screw.

3. The anti-loosening screw assembly of claim 2, wherein: the gasket comprises a gasket A and a gasket B; a convex block matched with the clamping groove of the flange screw is arranged in the inner ring of the gasket A; and a clamping block is arranged on the outer ring of the gasket B.

4. The anti-loosening screw assembly of claim 3, wherein: and a clamping block on the outer ring of the gasket B bends downwards, and the bending direction is opposite to the position of the elastic sheet on the surface of the gasket B.

5. The anti-loosening screw assembly of claim 2, wherein: the number of the elastic sheets on the edge of the gasket is odd.

6. The anti-loosening screw assembly of claim 2, wherein: the number of the elastic sheets on the edge of the gasket is even.

7. The anti-loosening screw assembly of claim 6, wherein: a certain included angle a is formed between two opposite elastic sheets on the edge of the gasket along the circumferential center.

8. The anti-loosening screw assembly of claim 7, wherein: the included angle a is 0-8 degrees.