CN215409678U

CN215409678U - Fastening screw with high-strength anti-fracture effect

Info

Publication number: CN215409678U
Application number: CN202121462418.6U
Authority: CN
Inventors: 李彬
Original assignee: Tianjin Tianyu Tongtian Precision Fastener Co ltd
Current assignee: Tianjin Tianyu Tongtian Precision Fastener Co ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2022-01-04
Anticipated expiration: 2031-06-28

Abstract

The utility model discloses a fastening screw with a high-strength anti-fracture effect, which comprises a screw body, wherein an installation groove is formed in the screw body, a circular groove communicated with the installation groove is formed in the top end of the screw body, and an anti-fracture assembly is arranged on the inner wall of the installation groove; the anti-fracture assembly comprises a positioning rod and a threaded rod, a telescopic assembly is arranged between the positioning rod and the threaded rod, the bottom end of the positioning rod is fixedly connected with the inner bottom wall of the mounting groove, the top end of the threaded rod penetrates through the mounting groove and extends to the inside of the circular groove, and the surface of the threaded rod is in threaded connection with a locking nut. The utility model discloses an utilize the subassembly of preventing splitting can be in the same place the screw after the fracture is fixed temporarily, avoid the tradition to use other instruments such as electric drill, reduce the degree of difficulty and the time of dismantling the bolt that breaks, improve and dismantle efficiency.

Description

Fastening screw with high-strength anti-fracture effect

Technical Field

The utility model belongs to the technical field of screws, and particularly relates to a fastening screw with a high-strength anti-fracture effect.

Background

A screw is a common fixing part, which is commonly used in machinery, electrical appliances, buildings, etc., and is generally made of metal or plastic, and is cylindrical, and grooves with concave and convex surfaces engraved thereon are called threads. The primary function of the screw is to engage two objects or to fix the position of an object.

Through retrieval, chinese patent discloses a bolt subassembly that drops after preventing splitting (publication number is CN205744842U), this patent technique utilizes the connecting core of anti-drop connector to pass through the screw rod body through the through-hole, and the connecting core both ends are provided with the dog respectively, after the bolt fastening on the steel truss bridge splits, anti-drop connector can be with the two parts connection and hang after the bolt fracture at the steel truss bridge, but when the screw after the fracture needs to be dismantled, still need to utilize the electric drill to drill the fracture screw in the object, reuse other instruments to dismantle cracked screw, consequently, technical staff in the art provides a fastening screw that has high strength anti-fracture effect, in order to solve the problem that proposes in the above-mentioned background art.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide the fastening screw with the high-strength anti-fracture effect, the fractured screw can be temporarily fixed together by utilizing the anti-fracture assembly, other tools such as an electric drill and the like are avoided being used in the prior art, the difficulty and time for disassembling the fractured bolt are reduced, and the disassembling efficiency is improved.

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

a fastening screw with a high-strength anti-fracture effect comprises a screw body, wherein an installation groove is formed in the screw body, a circular groove communicated with the installation groove is formed in the top end of the screw body, and an anti-fracture assembly is arranged on the inner wall of the installation groove;

the anti-fracture assembly comprises a positioning rod and a threaded rod, a telescopic assembly is arranged between the positioning rod and the threaded rod, the bottom end of the positioning rod is fixedly connected with the inner bottom wall of the mounting groove, the top end of the threaded rod penetrates through the mounting groove and extends into the circular groove, and a locking nut is connected to the surface of the threaded rod in a threaded manner;

through above-mentioned technical scheme, when the bolt breaks, lock nut in the rotatory subassembly of preventing splitting, lock nut is rotatory and move down on the threaded rod surface, links together cracked set screw two parts, utilizes the head of the rotatory screw rod body of instrument, and the screw rod body that will break is dismantled out, the screw rod of renewal can, this mode avoids other instruments such as the tradition use electric drill, reduces the degree of difficulty and the time of dismantling the bolt that breaks, improves and dismantles efficiency.

Furthermore, the shape of the locking nut is an equilateral hexagon, an anti-skid layer is arranged on the surface of the locking nut, and the anti-skid layer is a high-strength rubber component;

through above-mentioned technical scheme, utilize the rotatory lock nut of palm earlier in earlier stage, save the time of locking, latter half locking reuse instrument locks, and the frictional resistance between user and palm and the lock nut is strengthened to the skid resistant course, the condition of skidding is difficult for appearing.

Furthermore, a positioning block is fixedly connected to the top end of the threaded rod and is positioned inside the circular groove;

through above-mentioned technical scheme, the locating piece is spacing to preventing fracture subassembly and screw rod body, avoids the two to break away from.

Furthermore, the inner bottom wall of the circular groove is provided with scale marks which are distributed annularly, and the scale marks are positioned below the positioning block;

through above-mentioned technical scheme, utilize scale mark and locating piece can find out screw rod body position when splitting, the fracture mouth of being convenient for coincide for the result of use of anti-fracture subassembly is better, can be better dismantle cracked screw rod body.

Furthermore, the telescopic assembly comprises a spring and at least two limiting rods, the bottom end of the spring is fixedly connected with the positioning rod, and the top end of the spring is fixedly connected with the bottom end of the threaded rod;

through the technical scheme, the upper end part of the broken screw body can be separated, and the broken port can be observed conveniently.

Furthermore, the top end of the limiting rod is fixedly connected with the bottom end of the threaded rod, a movable groove matched with the limiting rod is formed in the top end of the positioning rod, and the bottom end of the limiting rod penetrates through the movable groove and extends into the movable groove;

through above-mentioned technical scheme, carry on spacingly to locating lever and threaded rod for after the subassembly of preventing splitting is fixed, locating lever and threaded rod can rotate in step, the normal operating of process is dismantled in the guarantee.

In conclusion, the utility model has the following beneficial effects:

1. through setting up the subassembly of preventing splitting, when the bolt breaks, lock nut in the rotatory subassembly of preventing splitting, lock nut is rotatory and the downstream in the threaded rod surface, links together cracked set screw two parts, utilizes the head of the rotatory screw rod body of instrument, and the screw rod body that will break is dismantled out, the screw rod of renewal can, this mode avoids other instruments such as tradition use electric drill, reduces the degree of difficulty and the time of dismantling the bolt that splits, improves and dismantles efficiency.

2. Through setting up lock nut and skid resistant course, utilize the rotatory lock nut of palm earlier in earlier stage, save the time of locking, latter half locking reuse instrument locks, and the skid resistant course strengthens the frictional resistance between user and palm and the lock nut, the difficult condition of skidding that appears.

Drawings

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

FIG. 2 is a schematic view showing the connection between the mounting groove and the circular groove in the present embodiment;

FIG. 3 is a front sectional view of the present embodiment;

FIG. 4 is an enlarged view at A in FIG. 1;

fig. 5 is an enlarged view of fig. 3 at B.

Description of reference numerals: 1. a screw body; 2. mounting grooves; 3. a circular groove; 301. scale lines; 4. an anti-fracture component; 401. positioning a rod; 402. a threaded rod; 403. locking the nut; 404. positioning blocks; 5. a telescoping assembly; 501. a spring; 502. a limiting rod; 503. a movable groove.

Detailed Description

Example (b):

the present invention is described in further detail below with reference to figures 1-5.

A fastening screw with a high-strength anti-fracture effect comprises a screw body 1, wherein an installation groove 2 is formed in the screw body 1, a circular groove 3 communicated with the installation groove 2 is formed in the top end of the screw body 1, and an anti-fracture assembly 4 is arranged on the inner wall of the installation groove 2; anti-fracture subassembly 4 includes locating lever 401 and threaded rod 402, be provided with flexible subassembly 5 between locating lever 401 and the threaded rod 402, locating lever 401's bottom and the interior diapire fixed connection of mounting groove 2, mounting groove 2 is run through and extends to the inside of circular recess 3 on the top of threaded rod 402, the surface threaded connection of threaded rod 402 has lock nut 403, rotatory lock nut 403, can link together cracked set screw two parts, utilize the head of rotatory screw rod body 1 of instrument, will fracture and get screw rod body 1 and dismantle out, it is comparatively simple to dismantle, save the takedown time.

The shape of lock nut 403 is equilateral hexagon, lock nut 403's surface is provided with the skid resistant course, the skid resistant course saves the time of locking for high strength rubber component, the top fixedly connected with locating piece 404 of threaded rod 402, locating piece 404 is located circular recess 3's inside, locating piece 404 is spacing to preventing subassembly 4 and screw rod body 1 of splitting, avoid the two to break away from, circular recess 3's inner diapire is provided with annular distribution's scale mark 301, scale mark 301 is located the below of locating piece 404, make the anastomotic effect of fracture mouth better, it is more convenient during the dismantlement.

The telescopic component 5 includes spring 501 and the gag lever post 502 that the quantity is two at least, spring 501's bottom and locating lever 401 fixed connection, spring 501's top and threaded rod 402's bottom fixed connection, make cracked screw rod body 1's upper end part can break away from, the convenience is surveyd the fracture mouth, gag lever post 502's top and threaded rod 402's bottom fixed connection, locating lever 401's top seted up with gag lever post 502 assorted activity groove 503, the bottom of gag lever post 502 runs through activity groove 503 and extends to the inside of activity groove 503, it is spacing to prevent subassembly 4 that splits, the guarantee dismantles the normal operating of process.

The working principle is as follows: when the screw body 1 is broken in the installation or use process, the head of the screw body 1 can be pulled outwards, the positioning block 404 is attached inside the circular groove 3 and drives the threaded rod 402 to move outwards, the spring 501 deforms, the situation of the broken part of the screw body 1 is observed, the head of the screw body 1 returns to the position of the broken part according to the scale mark 301 of the inner bottom wall of the circular groove 3, so that the broken part can be better attached together, the locking nut 403 is rotated by a palm in the early stage, the locking time is saved, the locking is performed by using a tool after locking in the later stage, the friction resistance between a user and the palm and the locking nut 403 is enhanced by the anti-slip layer, the situation of slipping is not easy to occur, the threaded rod 402 moves outwards, the spring stretches, the limiting rod 502 moves in the movable groove 503, and when the limiting rod 502 cannot move, the locking of the broken part of the screw body 1 is completed, the screw body 1 is rotated and taken out.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. The utility model provides a fastening screw with effect of splitting is prevented to high strength, includes screw rod body (1), its characterized in that: the screw rod comprises a screw rod body (1), wherein a mounting groove (2) is formed in the screw rod body (1), a circular groove (3) communicated with the mounting groove (2) is formed in the top end of the screw rod body (1), and an anti-fracture assembly (4) is arranged on the inner wall of the mounting groove (2);

prevent subassembly (4) that splits includes locating lever (401) and threaded rod (402), be provided with between locating lever (401) and the threaded rod (402) flexible subassembly (5), the bottom of locating lever (401) and the interior diapire fixed connection of mounting groove (2), the inside of mounting groove (2) and extension to circular recess (3) is run through on the top of threaded rod (402), the surperficial threaded connection of threaded rod (402) has lock nut (403).

2. A fastening screw having a high-strength fracture-preventing effect according to claim 1, characterized in that: the shape of lock nut (403) is equilateral hexagon, the surface of lock nut (403) is provided with the skid resistant course, the skid resistant course is high strength rubber component.

3. A fastening screw having a high-strength fracture-preventing effect according to claim 1, characterized in that: the top end of the threaded rod (402) is fixedly connected with a positioning block (404), and the positioning block (404) is located inside the circular groove (3).

4. A fastening screw having a high-strength fracture-preventing effect according to claim 1, characterized in that: the inner bottom wall of the circular groove (3) is provided with scale marks (301) distributed in an annular mode, and the scale marks (301) are located below the positioning blocks (404).

5. A fastening screw having a high-strength fracture-preventing effect according to claim 1, characterized in that: the telescopic assembly (5) comprises a spring (501) and at least two limiting rods (502) in number, the bottom end of the spring (501) is fixedly connected with the positioning rod (401), and the top end of the spring (501) is fixedly connected with the bottom end of the threaded rod (402).

6. A fastening screw having a high-strength anti-fracture effect according to claim 5, characterized in that: the top of gag lever post (502) and the bottom fixed connection of threaded rod (402), the top of locating lever (401) is seted up with gag lever post (502) assorted activity groove (503), the bottom of gag lever post (502) runs through activity groove (503) and extends to the inside in activity groove (503).