CN215634310U

CN215634310U - Screw with anti-loosening function

Info

Publication number: CN215634310U
Application number: CN202122060659.4U
Authority: CN
Inventors: 蒋万军; 黄金森
Original assignee: Mianyang Ruilian Electronic Machinery Technology Co ltd
Current assignee: Mianyang Ruilian Electronic Machinery Technology Co ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2022-01-25
Anticipated expiration: 2031-08-30

Abstract

The utility model discloses a screw with an anti-loosening function, which belongs to the technical field of screws and comprises a screw body, wherein the upper end surface of the screw body is fixedly connected with an upper connecting post, the outer ring surface of the upper connecting post is provided with a ring groove, a lantern ring is arranged in the ring groove, the upper end surface of the lantern ring is provided with through holes, two through holes are arranged, and an external screw is arranged in each through hole.

Description

Screw with anti-loosening function

Technical Field

The utility model relates to the technical field of screws, in particular to a screw with an anti-loosening function.

Background

The screw is a common fastener widely used on machinery, electrical appliances and buildings, is generally made of metal or plastic, is cylindrical, and is called as a thread with grooves engraved and embossed on the surface.

The problem of screw looseness prevention exists among the prior art, can cause the screw to install the phenomenon that can appear becoming flexible in the work piece for a long time, leads to the not enough result of locking degree at last.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a screw with an anti-loosening function, and the screw is used for solving the problem that the existing screw is installed in a workpiece and becomes loose for a long time, and finally the locking degree is insufficient.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model discloses a screw with an anti-loosening function, which comprises a screw body, wherein an upper connecting column is fixedly connected to the upper end surface of the screw body, an annular groove is formed in the outer annular surface of the upper connecting column, a lantern ring is arranged in the annular groove, through holes are formed in the upper end surface of the lantern ring, two through holes are formed in each through hole, and an external screw is arranged in each through hole.

As a further scheme of the utility model: go up spliced pole up end fixedly connected with connecting block, go up the connecting block up end and seted up and twist the groove, twist the shape in groove and set up for regular hexagon, be provided with connecting block and twist the groove and can reach the effect of convenient application of force to the screw body.

As a still further scheme of the utility model: the outer periphery fixedly connected with external screw thread of screw body, the external screw thread is the derotation to setting up, the length matching of external screw thread sets up the length of screw body is provided with the external screw thread and can reaches and make the screw body enter into the work piece more easily.

As a still further scheme of the utility model: the lower end face of the screw body is fixedly connected with the lower connecting column, the lower end face of the lower connecting column is subjected to 45-degree chamfering treatment, and the effect that the inside of a workpiece is not cracked due to the fact that the inside of the workpiece is subjected to the instantaneous pressure stress II is ensured when the screw body enters the workpiece.

As a still further scheme of the utility model: an upper opening groove is formed in the upper end face of the lantern ring, a sealing strip is arranged in the upper opening groove, and the upper opening groove and the sealing strip are arranged to achieve the effect of reducing twisting abrasion when the upper end face of the lantern ring contacts with the lower end face of the upper connecting block.

As a still further scheme of the utility model: the thickness of the lantern ring is less than the opening depth of the ring groove, and the lantern ring can move in position.

As a still further scheme of the utility model: the outer diameter of the lantern ring is larger than that of the screw body, so that the outer screw on the lantern ring can be normally locked.

As a still further scheme of the utility model: the length of outer screw is greater than the degree of depth of clearing hole ensures that outer screw can cooperate the screw body to carry out the effect of the regulation of degree of depth.

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

1. according to the anti-loosening screw, the upper connecting column is fixedly connected to the upper end face of the screw body, the annular groove is formed in the outer annular face of the upper connecting column, the ring groove is internally provided with the lantern ring, the upper end face of the lantern ring is provided with the through holes, the outer screw is arranged in each through hole, the height of the lantern ring is adjusted after the screw body is screwed, the outer screw is further screwed into a workpiece to be fixed, the anti-loosening problem of the screw is solved, and the anti-loosening effect of the screw can be kept at any depth.

2. According to the utility model, the lower end face of the screw body is fixedly connected with the lower connecting column, and the lower end face of the lower connecting column is subjected to 45-degree chamfering treatment, so that the action that the lower end face of the lower connecting column contacts the surface of a workpiece when the screw body is screwed is completed, the problem that the screw body enters the workpiece and cracks are generated is solved, and the effect that the inside of the workpiece cannot crack is achieved.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a cross-sectional view of the screw body according to the present invention;

FIG. 3 is an enlarged view of the structure of FIG. 2 at A according to the present invention;

fig. 4 is an enlarged schematic view of the structure at B in fig. 2 according to the present invention.

In the figure: 1. a screw body; 2. an upper connecting column; 3. a ring groove; 4. a collar; 5. through the hole; 6. an outer screw; 7. an upper connecting block; 8. screwing the groove; 9. an external thread; 10. a lower connecting column; 11. an upper open slot; 12. a sealing strip.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b):

referring to fig. 1 to 4, the screw with anti-loosening function in the embodiment includes a screw body 1, an upper connection column 2 is fixedly connected to an upper end face of the screw body 1, an annular groove 3 is formed in an outer annular surface of the upper connection column 2, a lantern ring 4 is arranged in the annular groove 3, two through holes 5 are formed in an upper end face of the lantern ring 4, and an outer screw 6 is arranged in each through hole 5.

The upper connecting block 7 is fixedly connected to the upper end face of the upper connecting column 2, the screwing groove 8 is formed in the upper end face of the upper connecting block 7, the screwing groove 8 is in a regular hexagon shape, and the upper connecting block 7 and the screwing groove 8 are arranged to achieve the effect of conveniently applying force to the screw body 1;

the outer circumferential surface of the screw body 1 is fixedly connected with an external thread 9, the external thread 9 is arranged in a reverse rotation direction, the length of the external thread 9 is matched with that of the screw body 1, and the external thread 9 is arranged to enable the screw body 1 to enter a workpiece more easily;

the lower end face of the screw body 1 is fixedly connected with a lower connecting column 10, and the lower end face of the lower connecting column 10 is subjected to 45-degree chamfering treatment, so that the effect that the inside of a workpiece is not cracked due to instantaneous pressure stress II when the screw body 1 enters the workpiece is ensured;

the upper end face of the lantern ring 4 is provided with an upper open slot 11, a sealing strip 12 is arranged in the upper open slot 11, and the upper open slot 11 and the sealing strip 12 are arranged to achieve the effect of reducing twisting abrasion when the upper end face of the lantern ring 4 contacts the lower end face of the upper connecting block 7;

the thickness of the lantern ring 4 is smaller than the opening depth of the ring groove 3, so that the lantern ring 4 can move in position;

the outer diameter of the lantern ring 4 is larger than that of the screw body 1, so that the outer screw 6 on the lantern ring 4 can be normally locked;

the length of the outer screw 6 is greater than the depth of the through hole 5, ensuring the effect that the outer screw 6 can cooperate with the screw body 1 to adjust the depth.

The screw body 1 is tightened, and then the outer screw 6 is fitted into the through hole 5, and the outer screw 6 is tightened to fasten the screw body 1.

The working principle of the utility model is as follows: when the screw body 1 is installed, the front head of a screwing tool is matched with a screwing groove 8, the screw body 1 is screwed up by an electric tool, an upper connecting column 2 is fixedly connected with the upper end face of the screw body 1, an annular groove 3 is formed on the outer annular surface of the upper connecting column 2, a lantern ring 4 is arranged in the annular groove 3, a through hole 5 is formed on the upper end face of the lantern ring 4, an outer screw 6 is arranged in each through hole 5, the lantern ring 4 is adjusted in height after the screw body 1 is screwed up, and then the outer screw 6 is screwed into a workpiece to be fixed, so that the effect that the screw can keep anti-loosening at any depth is achieved, a lower connecting column 10 is fixedly connected with the lower end face of the screw body 1, the lower end face of the lower connecting column 10 is chamfered at an angle of 45 degrees, when the screw body 1 is screwed up, the action that the lower end face of the lower connecting column 10 contacts with the surface of the workpiece is achieved, and the effect that cracks cannot occur inside the workpiece is achieved, the upper end face of the lantern ring 4 is provided with an upper opening groove 11, a sealing strip 12 is arranged in the upper opening groove 11, and the upper opening groove 11 and the sealing strip 12 are arranged to achieve the effect of reducing twisting abrasion when the upper end face of the lantern ring 4 contacts the lower end face of the upper connecting block 7.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a screw with locking function, includes screw body (1), its characterized in that: the screw comprises a screw body (1), wherein an upper end face of the screw body (1) is fixedly connected with an upper connecting column (2), an annular groove (3) is formed in the outer annular face of the upper connecting column (2), a lantern ring (4) is arranged in the annular groove (3), a through hole (5) is formed in the upper end face of the lantern ring (4), two outer screws (6) are arranged in the through hole (5) through the through hole (5), and each outer screw is arranged in the through hole (5).

2. A screw having a loosening prevention function according to claim 1, wherein: go up spliced pole (2) up terminal surface fixedly connected with connecting block (7), go up connecting block (7) up terminal surface and seted up and twist and move groove (8), twist and move the shape of groove (8) and set up for regular hexagon.

3. A screw having a loosening prevention function according to claim 1, wherein: the outer periphery fixedly connected with external screw thread (9) of screw body (1), external screw thread (9) are the derotation to setting up, the length matching of external screw thread (9) sets up the length of screw body (1).

4. A screw having a loosening prevention function according to claim 1, wherein: the lower end face of the screw body (1) is fixedly connected with a lower connecting column (10), and the lower end face of the lower connecting column (10) is subjected to 45-degree chamfering treatment.

5. A screw having a loosening prevention function according to claim 1, wherein: an upper opening groove (11) is formed in the upper end face of the lantern ring (4), and a sealing strip (12) is arranged in the upper opening groove (11).

6. A screw having a loosening prevention function according to claim 1, wherein: the thickness of the lantern ring (4) is smaller than the opening depth of the ring groove (3).

7. A screw having a loosening prevention function according to claim 1, wherein: the outer diameter of the lantern ring (4) is larger than that of the screw body (1).

8. A screw having a loosening prevention function according to claim 1, wherein: the length of the outer screw (6) is greater than the depth of the through hole (5).