CN215257323U

CN215257323U - Anti-loosening screw with self-locking capability

Info

Publication number: CN215257323U
Application number: CN202121731518.4U
Authority: CN
Inventors: 侯海祥; 李俊
Original assignee: Suzhou Haimo Precision Hardware Co ltd
Current assignee: Suzhou Haimo Precision Hardware Co ltd
Priority date: 2021-07-28
Filing date: 2021-07-28
Publication date: 2021-12-21
Anticipated expiration: 2031-07-28

Abstract

The utility model provides a check screw with self-locking capability, which relates to the technical field of hardware screws and comprises a screw body, wherein the screw body is provided with a threaded part, the bottom of the screw is provided with a nut, and a locking device is arranged on the screw body close to the outlet of the nut; the locking device comprises inclined holes arranged between adjacent threads and tensioning nails penetrating through the inclined holes, and pressing blocks are arranged at the tail parts of the tensioning nails; the spring is arranged at the bottom of the inclined hole; the surface of the inclined hole is provided with a glass cover, and the glass cover is fixed with the screw body in an adhesive mode; the gasket is arranged on the surface of the tensioning nail, and the end part of the tensioning nail is tightly attached to the gasket. The utility model discloses the device has the effectual advantage of locking.

Description

Anti-loosening screw with self-locking capability

Technical Field

The utility model relates to a five metals screw technical field, concretely relates to check screw with self-locking ability.

Background

During fire fighting operation, the screw is a tool for fastening machine parts of an object step by utilizing the physics and mathematical principles of the inclined circular rotation and friction of the object. Screws are a common term for fasteners, a common spoken word. The screw is indispensable industry requisite in daily life: extremely small screws used for cameras, glasses, clocks, electronics, and the like; general screws for televisions, electric appliances, musical instruments, furniture, and the like; large screws and nuts are used for engineering, buildings and bridges; transportation equipment, airplanes, electric cars, automobiles, and the like are used with screws of different sizes. The screw has an important task in industry, and as long as there is industry on earth, the function of the screw is always important. The screw is a common invention in production and life of people for thousands of years, and is the first invention of human according to the application field.

However, in the prior art, the fastening of the connecting piece is mainly realized by the threaded part of the screw and the connecting piece in threaded fit, but the connection condition can be loosened under the condition of vibration.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a novel locking screw with self-locking capability, which can solve the technical problem in the background art.

The utility model discloses a following technical scheme realizes: a self-locking anti-loosening screw comprises a screw body, wherein a threaded part is arranged on the screw body, a screw cap is arranged at the bottom of the screw, and a locking device is arranged on the screw body close to the outlet of the screw cap;

the locking device comprises inclined holes arranged between adjacent threads and tensioning nails penetrating through the inclined holes, and pressing blocks are arranged at the tail parts of the tensioning nails;

the spring is arranged at the bottom of the inclined hole;

the surface of the inclined hole is provided with a glass cover, and the glass cover is fixed with the screw body in an adhesive mode;

the gasket is arranged on the surface of the tensioning nail, and the end part of the tensioning nail is tightly attached to the gasket.

The utility model discloses preferred embodiment lies in, the glass lid is hemisphere glass lid.

The utility model discloses preferred embodiment lies in, the glass lid is cuboid glass lid.

The utility model discloses preferred embodiment lies in, tensioning nail surface passivation treatment, the gasket surface is provided with the recess.

The utility model has the advantages that the inclined hole and the thread part are parallel on the horizontal plane;

be provided with several inclined hole and tensioning nail on the screw body, the setting of staggering each other between inclined hole and the tensioning nail.

Compared with the prior art, the utility model, through set up overspeed device tensioner on the screw body, this overspeed device tensioner can be connected with the screw hole machinery rigid in the connecting piece when screw in to connecting piece in for the screw increases with the joint strength of screw hole, has strengthened the auto-lock ability of screw.

Drawings

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

fig. 2 is a partially enlarged schematic view of fig. 1.

In the figure: 1. a screw body; 11. a nut; 12. a threaded portion; 13. an inclined hole; 2. a locking device; 21. tensioning the nail; 211. briquetting; 22. a spring; 23. a glass cover; 24. a gasket; 241. and (4) a groove.

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 the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

The present invention will be further explained with reference to the accompanying drawings, and as shown in fig. 1 and fig. 2, the self-locking screw includes a screw body 1, a threaded portion 12 is provided on the screw body 1, a nut 11 is provided at the bottom of the screw, and a locking device 2 is provided on the screw body 1 near the nut 11;

the locking device 2 comprises an inclined hole 13 arranged between adjacent threads and a tension nail 21 penetrating through the inclined hole 13, and a pressing block 211 is arranged at the tail of the tension nail 21;

the spring 22 is arranged at the bottom of the inclined hole 13;

the surface of the inclined hole 13 is provided with a glass cover 23, and the glass cover 23 is fixed with the screw body 1 in an adhesive manner;

the washer 24 is arranged on the surface of the tension nail 21, and the end part of the tension nail 21 is tightly attached with the washer 24.

The utility model discloses the implementation principle of device is: when a screw is screwed into the threaded hole, the friction between the glass cover 23 arranged on the locking device 2 close to the nut 11 and the threaded hole can be broken, the internal tension nail 21 can be extruded out of the inclined hole 13 under the action of the pressure of the spring 22, and can be mechanically connected with the threaded hole along with the rotation of the screw, and after the screw is screwed in place, the screw can be clamped between the threads of the threaded hole, and a transverse extrusion force is added between the screw and the connecting piece, so that the connection strength between the screw and the connecting piece is increased;

meanwhile, in order to not damage the structure of the threaded hole, the tensioning screw should be arranged at a position close to the nut 11 in a small amount, and the tensioning screw should be arranged less, so that the connection strength is not affected by the damage of the threads in the threaded hole when the tensioning screw is too close to the top of the screw.

Further, the glass cover 23 is a hemispherical glass cover 23. Or a cuboid glass cover 23, a glass cover 23 with different types is selected, and the shape of the gasket 24 is also changed.

Further, the surface of the tension nail 21 is passivated, and the surface of the gasket 24 is provided with a groove 241.

The surfaces of the screws are passivated, and a gasket 24 is arranged at the same time, and a groove 241 which is convenient for the head of the tension nail 21 to be connected and fixed is arranged on the gasket 24, so that the tension nail 21 is prevented from puncturing the glass cover 23.

Further, the inclined hole 13 is parallel to the threaded portion 12 in a horizontal plane;

be provided with several inclined hole 13 and tensioning nail 21 on the screw body 1, the setting of staggering each other between inclined hole 13 and the tensioning nail 21.

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

Claims

1. The utility model provides a check screw with self-locking ability, includes the screw body, be provided with screw portion on the screw body, its characterized in that: the bottom of the screw is provided with a nut, and a locking device is arranged on the screw body close to the outlet of the nut;

the spring is arranged at the bottom of the inclined hole;

2. The self-locking anti-loose screw according to claim 1, characterized in that: the glass cover is a hemispherical glass cover.

3. The self-locking anti-loose screw according to claim 1, characterized in that: the glass cover is a cuboid glass cover.

4. The self-locking anti-loose screw according to claim 1, characterized in that: and the surface of the tensioning nail is subjected to passivation treatment, and the surface of the gasket is provided with a groove.

5. The self-locking anti-loose screw according to claim 1, characterized in that: the inclined hole is parallel to the threaded part on the horizontal plane;