CN220337255U

CN220337255U - Lock screw

Info

Publication number: CN220337255U
Application number: CN202321908287.9U
Authority: CN
Inventors: 胡启雄
Original assignee: Yuyao Ouxionggu Hardware Products Co ltd
Current assignee: Yuyao Ouxionggu Hardware Products Co ltd
Priority date: 2023-07-19
Filing date: 2023-07-19
Publication date: 2024-01-12
Anticipated expiration: 2033-07-19

Abstract

The utility model relates to the technical field of screws, in particular to a locking screw, which comprises a screw cap, wherein a screw rod is arranged below the screw cap, and the locking screw further comprises: the rotating assembly is arranged inside the screw cap and can fix the screw cap in the threaded hole; the locking assembly is arranged on one side of the rotating assembly, the locking assembly can limit the rotation of the rotating assembly, the locking screw can achieve stronger force inside the ejector rod relative to the screw hole after screwing the screw into the screw hole through the cooperation of the wedge block and the ejector rod, so that when the screw is separated from the screw hole, the screw can still be positioned in the screw hole, and displacement can not occur after the locking screw rotates to a fixed position through the cooperation of the positioning pin, the positioning hole and the limiting plate, and the fixed effect is achieved.

Description

Lock screw

Technical Field

The utility model relates to the technical field of screws, in particular to a locking screw.

Background

Screws are a type of fastener commonly used in the mechanical field, and existing screws generally comprise a bolt and a nut, wherein the bolt is positioned on one side of a fastened article, the nut is positioned on the other side of the fastened article, the bolt and the nut are in threaded connection, and the fastened article is fastened by the screw.

The existing screw can better realize the fastening function in the use process, but is self-locked only through the friction force of the internal thread and the external thread of the screw, the applicable place is limited, for example, the special places such as larger vibration are adopted, the nuts in the existing screw are easy to withdraw from the bolts, the fastening effect of the screw is greatly reduced, and the personal accident is caused by heavy weight, so that the anti-loose screw is provided.

Disclosure of Invention

The present utility model is directed to a locking screw to solve the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a jam screw, includes the nut, the below of nut is provided with the screw rod, still includes: the rotating assembly is arranged inside the screw cap and can fix the screw cap in the threaded hole; and the locking component is arranged on one side of the rotating component and can limit the rotation of the rotating component.

The measures for further optimizing the technical scheme are as follows:

as an improvement, the rotating assembly comprises a cylinder arranged in the nut, a wedge block is arranged on one side of the cylinder, the shape of the wedge block is triangular, a push rod is arranged on one side of the wedge block, a square hole is formed in one side of the nut, a sliding rail is arranged below the push rod, and the push rod sliding rail and the square hole are coaxially arranged.

As an improvement, the locking assembly comprises a connecting rod arranged on one side of the cylinder, a locating pin is arranged in the connecting rod, a limiting plate is arranged in the nut, the limiting plate is arranged on the rotating route of the connecting rod, and a locating hole is formed in one side of the limiting plate.

As an improvement, one side of the wedge-shaped block is provided with an arc groove, and the radius of the arc groove is the same as that of the cylinder.

As an improvement, the upper surface of the cylinder is provided with a cross groove.

As an improvement, anti-skid threads are arranged outside the nut, and blue glue is adhered to the outer side of the threads.

The utility model has at least the following beneficial effects:

compared with the prior art, through the cooperation of wedge and ejector pin, can realize in the screw hole with the screw precession in, the inside stronger power that forms of ejector pin relative screw hole to when screw and screw hole break away from, the screw still can be fixed a position in the screw hole, through the cooperation of locating pin, locating hole and limiting plate, can not take place the displacement again after realizing rotating fixed position, thereby reach fixed effect.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of a portion of the structure of FIG. 1 in accordance with the present utility model;

FIG. 3 is a schematic view of the structure of FIG. 2 in another orientation in accordance with the present utility model;

FIG. 4 is a schematic view of the portion of FIG. 3 according to the present utility model;

FIG. 5 is a schematic view of the structure of FIG. 3 in another orientation in accordance with the present utility model;

in the figure: 1-a nut; 2-a screw; 3-a rotating assembly; a 4-lock assembly; 31-cylinder; 32-wedge blocks; 33-ejector pins; 34-square holes; 35-sliding rails; 41-connecting rods; 42-locating pins; 43-limiting plates; 44-positioning holes; 5-cross grooves; 6-anti-skid lines.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1-5, the present utility model provides a technical solution: the utility model provides a lockscrew, includes nut 1, and the below of nut 1 is provided with screw rod 2, still includes: the rotating assembly 3 is arranged inside the screw cap 1, and the rotating assembly 3 can fix the screw cap 1 in the threaded hole; and a locking assembly 4, wherein the locking assembly 4 is arranged at one side of the rotating assembly 3, and the locking assembly 4 can limit the rotation of the rotating assembly 3.

The rotating assembly 3 comprises a cylinder 31 arranged in the nut 1, a wedge block 32 is arranged on one side of the cylinder 31, the wedge block 32 is triangular, a push rod 33 is arranged on one side of the wedge block 32, a square hole 34 is formed in one side of the nut 1, a sliding rail 35 is arranged below the push rod 33, and the sliding rail 35 of the push rod 33 and the square hole 34 are coaxially arranged.

The locking assembly 4 comprises a connecting rod 41 arranged on one side of the cylinder 31, a locating pin 42 is arranged in the connecting rod 41, a limiting plate 43 is arranged in the nut 1, the limiting plate 43 is arranged on the rotating route of the connecting rod 41, and a locating hole 44 is formed in one side of the limiting plate 43.

One side of the wedge-shaped block 32 is provided with an arc groove, and the radius of the arc groove is the same as that of the cylinder 31.

The upper surface of the cylinder 31 is provided with a cross groove 5.

To sum up, firstly, the screw is turned by hand to enable the screw to enter the screw hole, then the cross screwdriver is inserted into the cross groove 5, the cylinder 31 is turned to drive the wedge block 32 to rotate, the wedge block 32 props against the ejector rod 33, the ejector rod 33 is outwards expanded to prop against the wall of the screw hole, and the screw hole is locked, and when the connecting rod 41 reaches the limiting plate 43, the locating pin 42 is inserted into the locating hole 44, so that the cylinder 31 is prevented from relatively rotating in the locking process.

Example 2

The upper surface of the cylinder 31 is provided with a cross groove 5.

The nut 1 is externally provided with anti-skid threads 6, and blue glue is adhered to the outer side of the threads, and the blue glue is mainly divided into a solid type and a liquid type. The solid-type blue gel is a blue solid-type gel whose appearance is generally required to be melted by heating to a specific temperature before use. The liquid-type blue gel is in a blue liquid shape in appearance, can be directly used without heating.

Unlike embodiment 1, embodiment 2 uses anti-slip threads 6 to facilitate screwing the screw into the screw hole, and blue glue can increase the anti-loosening performance of the screw if large machinery is used.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a jam screw, includes nut (1), the below of nut (1) is provided with screw rod (2), its characterized in that: the method also comprises the following steps:

the rotating assembly (3) is arranged inside the screw cap (1), and the screw cap (1) can be fixed in the threaded hole by the rotating assembly (3);

the locking assembly (4), the locking assembly (4) sets up in one side of rotating assembly (3), the rotation of rotating assembly (3) can be restricted to locking assembly (4).

2. A lock screw according to claim 1, wherein: the rotary assembly (3) comprises a cylinder (31) arranged inside a nut (1), a wedge block (32) is arranged on one side of the cylinder (31), the shape of the wedge block (32) is triangular, a push rod (33) is arranged on one side of the wedge block (32), a square hole (34) is formed in one side of the nut (1), a sliding rail (35) is arranged below the push rod (33), and the sliding rail (35) of the push rod (33) and the square hole (34) are coaxially arranged.

3. A lock screw according to claim 2, wherein: the locking assembly (4) comprises a connecting rod (41) arranged on one side of a cylinder (31), a locating pin (42) is arranged in the connecting rod (41), a limiting plate (43) is arranged in the nut (1), the limiting plate (43) is arranged on the rotating route of the connecting rod (41), and a locating hole (44) is formed in one side of the limiting plate (43).

4. A lock screw according to claim 3, wherein: one side of the wedge-shaped block (32) is provided with an arc groove, and the radius of the arc groove is the same as that of the cylinder (31).

5. A lock screw according to claim 4, wherein: the upper surface of the cylinder (31) is provided with a cross groove (5).

6. A lock screw according to claim 5, wherein: anti-skid threads (6) are arranged outside the nut (1), and blue glue is adhered to the outer side of the threads.