CN213332004U

CN213332004U - Torsional shear type anti-theft bolt

Info

Publication number: CN213332004U
Application number: CN202021767260.9U
Authority: CN
Inventors: 李平生; 曾念翔
Original assignee: Shenzhen Zhihua Electromechanical Equipment Co ltd
Current assignee: Shenzhen Zhihua Electromechanical Equipment Co ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-06-01
Anticipated expiration: 2030-08-21

Abstract

The utility model discloses a torsional shear type anti-theft bolt, which comprises a circular platform flange, a screw rod and a torsion column; one side of the circular truncated cone flange is connected with the screw, and the other side of the circular truncated cone flange is provided with an anti-theft wrench hole in an inwards concave manner; the torque column is positioned in the anti-theft wrench hole; a torsional shear gap is formed at the joint of the torsional column and the circular truncated cone flange; the circular truncated cone flange, the screw rod and the torsion column are coaxial.

Description

Torsional shear type anti-theft bolt

Technical Field

The utility model relates to a bolt field specifically is a turn round type of cutting theftproof bolt.

Background

In structural connection, the installation moment of torsion of bolt is the important index of ensureing joint strength, and for ensureing the reliability of installation, traditional turn round cuts the bolt and adopts fixation nut, the structure that the stress of bolt bottom was cut, and this kind of bolt must cooperate the nut to use in using, and the installation of cutting round can't be accomplished in independent bolt installation, and traditional turn round cuts the bolt and does not possess theftproof and locking pine function.

SUMMERY OF THE UTILITY MODEL

The invention aims to provide an independently used torsional shear type anti-theft bolt.

The utility model provides a technical scheme as follows that above-mentioned technical problem took:

a torsional shear type anti-theft bolt comprises a circular truncated cone flange, a screw rod and a torsion column;

one side of the circular truncated cone flange is connected with the screw, and the other side of the circular truncated cone flange is provided with an anti-theft wrench hole in an inwards concave manner;

the torque column is positioned in the anti-theft wrench hole;

a torsional shear gap is formed at the joint of the torsional column and the circular truncated cone flange;

the circular truncated cone flange, the screw rod and the torsion column are coaxial.

Furthermore, an anti-theft inclined plane is arranged on the outer side of the circular truncated cone flange.

Furthermore, one side of the circular truncated cone flange, which is connected with the screw rod, is provided with a non-return slope surface.

Furthermore, the anti-theft wrench hole is plum blossom-shaped.

Further, the torsion column is a hexagonal prism.

Further, the torsional shear gap is arranged around the torsional column.

Furthermore, the circular truncated cone flange, the screw rod and the torsion column are integrally formed.

Compared with the prior art, the utility model has the following advantage:

1. the top twist-off mode has flexible use environment and smaller site restriction factor;

2. the screw is screwed with the workpiece, and the screw can be independently used without a matched nut;

3. the inclined circular truncated cone flange prevents the wrench from being fixed from the outer side, and has a certain anti-theft effect;

4. the anti-theft wrench hole of the non-standard part has a certain anti-theft effect;

5. the non-return slope surface effectively prevents the bolt from rotating, and plays a certain role in loosening.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

The present invention will be described in detail with reference to the accompanying drawings so that the above advantages of the present invention can be more clearly understood.

Fig. 1 is a schematic view of a torsional shear type anti-theft bolt of the present invention;

fig. 2 is a side view of a torsional shear type anti-theft bolt of the present invention;

fig. 3 is a cross-sectional view of a torsional shear type anti-theft bolt of the present invention;

fig. 4 is a top view of the torsional shear type anti-theft bolt of the present invention.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "secured" are to be construed broadly and can, for example, be connected or detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1 to 4, a torsional shear type anti-theft bolt includes a circular truncated cone flange 200, a screw 100 and a torque column 300;

one side of the circular truncated cone flange 200 is connected with the screw 100, and the other side is concavely provided with an anti-theft wrench hole 201;

the torque column 300 is positioned in the anti-theft wrench hole 201;

a torsional shear gap 301 is formed at the joint of the torsion column 300 and the circular truncated cone flange 200;

the circular truncated cone flange 200, the screw 100 and the torque column 300 are coaxial. The anti-theft wrench hole 201 is a non-standard part, and a common wrench in the market, such as a hexagonal wrench, cannot be matched with the anti-theft wrench hole 201, so that a certain anti-theft effect is achieved; when the torque reaches a standard value, the torque column 300 is broken at the torsional shear notch 301, and the fixation is finished; the torsional shear type anti-theft bolt is screwed with the threads of a workpiece through the screw 100 and can be independently used without a nut; meanwhile, the circular truncated cone flange 200 can effectively prevent a person from using an adjustable wrench or pliers to loosen the bolt, and has a certain slipping anti-theft effect.

In this embodiment, an anti-theft inclined surface is disposed on the outer side of the circular truncated cone flange 200. When someone uses an adjustable wrench or pliers to fix the bolt from the outer side, the circular truncated cone flange 200 on the inclined surface can effectively reduce the contact area of the bolt and the adjustable wrench, and the anti-skidding and anti-theft effect is achieved.

In this embodiment, a non-return slope surface 202 is disposed on a side where the circular truncated cone flange 200 is connected to the screw 100. In order to prevent the bolt from rotating and loosening due to vibration or other external force, the non-return slope surface 202 can effectively prevent the bolt from rotating and loosening under the condition of screwing the bolt.

In this embodiment, the anti-theft wrench hole 201 is in a plum blossom shape. In order to improve the anti-theft performance, the anti-theft wrench hole 201 in this embodiment may be in a plum-blossom shape, or may be in other shapes such as a triangle shape.

In this embodiment, the torque rod 300 is a hexagonal prism. Most turn round to cut the spanner on the market and be electronic and turn round the mouth and be hexagonal mouth, the electronic spanner cost of cutting of turning round of customization is higher, and torque post 300 is most turn round to cut the spanner on the market for hexagonal prism can be general, and the commonality is strong.

In this embodiment, the torsional shear gap 301 is disposed around the torque post 300.

In this embodiment, the circular truncated cone flange 200, the screw 100 and the torque column 300 are integrally formed.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A torsional shear type anti-theft bolt is characterized by comprising a circular truncated cone flange (200), a screw rod (100) and a torsion column (300);

one side of the circular truncated cone flange (200) is connected with the screw (100), and the other side of the circular truncated cone flange is provided with an anti-theft wrench hole (201) in a concave manner;

the torque column (300) is positioned in the anti-theft wrench hole (201);

a torsional shear gap (301) is arranged at the joint of the torsional column (300) and the circular truncated cone flange (200);

the circular truncated cone flange (200), the screw (100) and the torsion column (300) are coaxial.

2. The twist-shear type theft-proof bolt according to claim 1, characterized in that the outer side of the circular truncated cone flange (200) is provided with a theft-proof slope.

3. The twist-shear type anti-theft bolt according to claim 1, wherein a non-return slope surface (202) is provided on the side where the circular truncated cone flange (200) is connected with the screw (100).

4. The twist-shear type anti-theft bolt according to claim 1, wherein said anti-theft wrench hole (201) is plum blossom shaped.

5. The twist-shear theft bolt according to claim 1, wherein the torque post (300) is a hexagonal prism.

6. The twist-shear antitheft bolt according to claim 1, wherein the twist-shear notch (301) is provided around the torque post (300).

7. The twist-shear type anti-theft bolt according to claim 1, wherein the circular truncated cone flange (200), the threaded rod (100) and the torque post (300) are integrally formed.