CN215634312U

CN215634312U - Anti-loosening thread

Info

Publication number: CN215634312U
Application number: CN202122249710.6U
Authority: CN
Inventors: 刘兰; 卢信潮
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-16
Filing date: 2021-09-16
Publication date: 2022-01-25
Anticipated expiration: 2031-09-16

Abstract

The utility model discloses an anti-loose thread, which comprises a screw rod, wherein the screw rod is vertically arranged, a lower nut is sleeved at the position, close to the bottom end, of the outer edge of the screw rod, the lower nut is horizontally arranged, an upper nut is arranged at the top of the lower nut, the upper nut is horizontally arranged, and the upper nut is sleeved at the outer edge of the screw rod. The upper nut and the lower nut are screwed to be in an original matching state, and can be screwed out simultaneously from top to bottom.

Description

Anti-loosening thread

Technical Field

The utility model relates to the technical field of threads, in particular to a locking thread.

Background

In order to improve the friction force between the joint surfaces of the coupling thread pair and improve the thread anti-loosening capability, a series of thread anti-loosening technologies are provided, for the thread connecting device influenced by the working conditions of impact, vibration and the like, the anti-loosening capability is an important index for evaluating the performance of the thread connecting device, and the increase of the friction force between the joint surfaces of the thread pair is one of effective measures for improving the thread anti-loosening capability. With the development of the technology, people often do not meet the configuration of the prior art, and the improvement is carried out on the basis of the prior art, so that the anti-loosening thread is brought.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a check thread.

One of the purposes of the utility model is realized by adopting the following technical scheme:

the utility model provides a check thread, includes the screw rod, the screw rod is vertical setting, the outside edge of screw rod is close to bottom department cover and is equipped with the lower nut, the lower nut sets up for the level, the top of lower nut is equipped with the upper nut, the upper nut sets up for the level, the outside edge at the screw rod is established to the upper nut cover, the top of lower nut is close to right side department and has seted up first fluting, the bottom of upper nut is close to right side department and has seted up the second fluting, be equipped with the snap ring between lower nut and the upper nut, the top and the bottom difference joint of snap ring are at adjacent first fluting and the grooved inner chamber of second.

Furthermore, the screw rod is in threaded connection with the upper nut and the lower nut, and the upper nut and the lower nut are the same in size.

Furthermore, the bottom of the inner cavity of the first slot and the top of the inner cavity of the second slot are both obliquely arranged, the inclined plane at the bottom of the inner cavity of the first slot faces to the upper right, and the inclined plane at the top of the inner cavity of the second slot faces to the lower right.

Furthermore, the cross sections of the first open groove and the second open groove are both arc-shaped, the arc-shaped opening of the first open groove arc-shaped structure faces to one side of the center of the lower nut, and the arc-shaped opening of the second open groove arc-shaped structure faces to one side of the center of the upper nut.

Further, first fluting and the corresponding setting of second fluting, the snap ring with first fluting matches each other with the second fluting, just the top and the bottom of snap ring laminate each other with first fluting and the grooved inner chamber top of second and bottom respectively.

Compared with the prior art, the utility model has the beneficial effects that:

according to the anti-loose thread, in the using process, after the upper nut and the lower nut are screwed down, the upper nut is reversely retreated to the limit, the clamping ring is inserted between the upper nut and the lower nut, because the bottom of the inner cavity of the first groove and the top of the inner cavity of the second groove are obliquely arranged, when the upper nut and the lower nut are screwed down, the clamping ring is mutually extruded, the upper nut restricts the lower nut to play an anti-loose fastening role, the upper nut and the lower nut are screwed down to be in a locked state by using the middle clamping ring, if the thread needs to be disassembled, the clamping ring is taken out, the upper nut and the lower nut are screwed down to be in an original matching state, and the upper nut and the lower nut can be screwed out simultaneously.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

FIG. 1 is a perspective view of the present embodiment;

FIG. 2 is an exploded view of the present embodiment;

fig. 3 is a bottom view of the nut of the present embodiment.

In the figure: 1. a screw; 2. a lower nut; 3. screwing a nut; 4. a first slot; 5. a snap ring; 6. and a second slot.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 3, a check thread includes a screw 1, the screw 1 is vertically disposed, a lower nut 2 is sleeved on the outer edge of the screw 1 near the bottom end, the lower nut 2 is horizontally disposed, an upper nut 3 is disposed on the top of the lower nut 2, the upper nut 3 is horizontally disposed, the upper nut 3 is sleeved on the outer edge of the screw 1, the screw 1 is in threaded connection with the upper nut 3 and the lower nut 2, the upper nut 3 and the lower nut 2 have the same size, a first slot 4 is disposed on the top of the lower nut 2 near the right side, a second slot 6 is disposed on the bottom of the upper nut 3 near the right side, the cross sections of the first slot 4 and the second slot 6 are both arc-shaped, the arc-shaped opening of the arc-shaped structure of the first slot 4 faces one side of the center of the lower nut 2, the arc-shaped opening of the arc-shaped structure of the second slot 6 faces one side of the center of the upper nut 3, a snap ring 5 is disposed between the lower nut 2 and the upper nut 3, the top and the bottom of snap ring 5 joint respectively in adjacent first fluting 4 and the inner chamber of second fluting 6, the inner chamber bottom of first fluting 4 and the inner chamber top of second fluting 6 are the slope setting, the setting is when making upper nut 3 and lower nut 2 screw up like this, extrude snap ring 5 each other, the inner chamber bottom inclined plane of first fluting 4 is towards the upper right side, the inner chamber top inclined plane of second fluting 6 is towards the lower right side, first fluting 4 and the corresponding setting of second fluting 6, snap ring 5 matches each other with first fluting 4 and second fluting 6, and the top and the bottom of snap ring 5 laminate each other with the inner chamber top and the bottom of first fluting 4 and second fluting 6 respectively.

The working principle is as follows: in the use, go up

nut

3 and 2 back of screwing up of lower nut, go up nut 3 and move back until the limit, insert between nut 3 and lower nut 2 snap ring 5, because the inner chamber bottom of first fluting 4 and the inner chamber top of second fluting 6 are the slope setting, so when

nut

3 and 2 screwing up of lower nut, extrude snap ring 5 each other, nut 2 under the restriction of nut 3 goes up, play locking fastening effect, reuse middle snap ring 5 in the middle of, it is in the lock dead state to make

nut

3 and 2 screwing up of lower nut, if need will take apart the screw thread, then snap ring 5 takes out, screw up nut 3 and lower nut 2 and screw up the original fit state, can screw out simultaneously from top to bottom.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims

1. A check thread, comprising a screw (1), characterized in that: screw rod (1) is vertical setting, the outside edge of screw rod (1) is close to bottom department cover and is equipped with lower nut (2), lower nut (2) sets up for the level, the top of lower nut (2) is equipped with nut (3), upper nut (3) set up for the level, the outside edge at screw rod (1) is established to upper nut (3) cover, the top of lower nut (2) is close to right side department and has seted up first fluting (4), the bottom of upper nut (3) is close to right side department and has seted up second fluting (6), be equipped with snap ring (5) between lower nut (2) and upper nut (3), the top and the bottom of snap ring (5) joint respectively at the inner chamber of adjacent first fluting (4) and second fluting (6).

2. A check thread as defined in claim 1, wherein: the screw rod (1) is in threaded connection with the upper nut (3) and the lower nut (2), and the upper nut (3) and the lower nut (2) are the same in size.

3. A check thread as defined in claim 1, wherein: the inner cavity bottom of first fluting (4) and the inner cavity top of second fluting (6) are the slope setting, the inner cavity bottom inclined plane of first fluting (4) is towards the upper right side, the inner cavity top inclined plane of second fluting (6) is towards the below right.

4. A check thread as defined in claim 1, wherein: the cross sections of the first open groove (4) and the second open groove (6) are both arc-shaped, the arc-shaped opening of the arc-shaped structure of the first open groove (4) faces one side of the center of the lower nut (2), and the arc-shaped opening of the arc-shaped structure of the second open groove (6) faces one side of the center of the upper nut (3).

5. A check thread as defined in claim 1, wherein: first fluting (4) and the corresponding setting of second fluting (6), snap ring (5) with first fluting (4) and second fluting (6) match each other, just the top and the bottom of snap ring (5) laminate each other with the inner chamber top and the bottom of first fluting (4) and second fluting (6) respectively.