Torsional shear type high-strength bolt

Abstract

The utility model discloses a torsional shear type high-strength bolt, which relates to the technical field of bolts, and comprises a bolt screw, a bolt anchor head and a wabbler, one end of the bolt screw is fixedly connected with the bolt anchor head, the wabbler is fixedly connected to one end of the bolt screw far away from the bolt anchor head, the top of the wabbler is provided with a cross groove, and the cross groove is fixedly connected with the bolt anchor head. A cross groove is formed in the bolt screw, a wabbler is arranged in the cross groove, an inserting column is arranged at the end, away from the bolt screw, of the wabbler, a cross column matched with the cross groove is fixedly connected to the bottom of the inserting column, and the cross column is movably inserted into the cross groove. When the wabbler and the bolt screw are broken, the wabbler can be broken into a plurality of quincuncial piles with small sizes, and the quincuncial piles can be conveniently separated from the inner rotating piece of the torsional shear type electric wrench.

Description

Technical Field

[0001] The utility model relates to the technical field of bolts, in particular to a torsion shear type high-strength bolt. Background Art

[0002] Bolt: A mechanical part, a cylindrical, threaded fastener that fits into a nut. Composed of a head and a shank (a cylindrical body with external threads), these fasteners, when used with a nut, are used to securely connect two parts with through-holes. This type of connection is called a bolted connection. Removing the nut from the bolt allows the two parts to separate, making bolted connections removable. A shear bolt is a high-strength bolt commonly found in steel structures, with a rounded head.

[0003] However, the existing torsion shear type high-strength bolts mostly have the plum head integrally formed with the bolt screw and the bolt anchor head. The plum head is driven by the rotation of the inner rotating part of the torsion shear type electric wrench and eventually breaks off from the bolt screw. During daily use, the broken plum head often gets stuck in the inner rotating part of the torsion shear type electric wrench, making it inconvenient to use. Utility Model Content

[0004] The purpose of the utility model is to provide a torsional shear type high-strength bolt to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a torsion shear type high-strength bolt, comprising a bolt screw, a bolt anchor head and a plum blossom head, one end of the bolt screw is fixedly connected to the bolt anchor head, the plum blossom head is fixedly connected to the end of the bolt screw away from the bolt anchor head, a cross groove is provided on the top of the plum blossom head, an insertion column is provided on the end of the plum blossom head away from the bolt screw, the bottom of the insertion column is fixedly connected to a cross column arranged to match the cross groove, and the cross column is movably inserted into the inside of the cross groove.

[0006] Preferably, the cross groove is opened through the plum blossom head.

[0007] Preferably, the diameters of the plug posts and the cross posts are both smaller than the diameter of the plum blossom head.

[0008] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention provides a torsion shear type high-strength bolt with a simple structure and is easy to use. By providing a cross groove on the plum blossom head and inserting a cross column inside the plum blossom head, when the plum blossom head and the bolt screw are broken, the plum blossom head will break into multiple smaller plum blossom piles, which can be easily detached from the inner rotating part of the torsion shear type electric wrench. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1It is a structural diagram of the utility model;

[0010] Figure 2 This is a disassembled diagram of the utility model;

[0011] Figure 3 This is a structural diagram of the plug-in column in the utility model.

[0012] In the figure: 1. Bolt screw; 2. Bolt anchor head; 3. Plum blossom head; 4. Cross groove; 5. Insert column; 6. Cross column. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0014] See also Figure 1-Figure 3 The utility model provides a technical solution: a torsion shear type high-strength bolt, comprising a bolt screw 1, a bolt anchor head 2 and a plum head 3. One end of the bolt screw 1 is fixedly connected to the bolt anchor head 2, the plum head 3 is fixedly connected to the end of the bolt screw 1 away from the bolt anchor head 2, a cross groove 4 is provided on the top of the plum head 3, and an insertion column 5 is provided at the end of the plum head 3 away from the bolt screw 1. The bottom of the insertion column 5 is fixedly connected to a cross column 6 adapted to the cross groove 4, and the cross column 6 is movably inserted into the inside of the cross groove 4.

[0015] The cross groove 4 is formed through the torx head 3 , which can effectively reduce the contact area between each independent torx head 3 plug column and the bolt screw 1 .

[0016] The diameters of the plug post 5 and the cross post 6 are both smaller than the diameter of the plum blossom head 3 , which facilitates separation of the plum blossom head 3 , the plug post 5 and the cross post 6 from the torsion shear type electric wrench.

[0017] Specifically, when using the present invention, the end of the bolt screw 1 with the plum head 3 is passed through the workpiece and a nut is threadedly sleeved on the thread groove, and the plum head 3 together with the plug column 5 and the cross column 6 are inserted into the inner rotating part of the torsion shear type electric wrench, and the nut is located in the outer rotating part of the torsion shear type electric wrench. When the nut is tightened, its inner rotating part will drive the plum head 3 to break and separate the plum head 3 from the bolt screw 1. After the installation is completed, the plum head 3 with multiple petals can be more easily dropped out of the torsion shear type electric wrench, and since the diameters of the plug column 5 and the cross column 6 are small, they can also be easily dropped off.

[0018] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A torsion shear type high-strength bolt, comprising a bolt screw (1), a bolt anchor head (2) and a plum blossom head (3), wherein one end of the bolt screw (1) is fixedly connected to the bolt anchor head (2), and the plum blossom head (3) is fixedly connected to the end of the bolt screw (1) away from the bolt anchor head (2), characterized in that: A cross groove (4) is provided on the top of the plum blossom head (3), and an insertion column (5) is provided at one end of the plum blossom head (3) away from the bolt screw (1). A cross column (6) adapted to the cross groove (4) is fixedly connected to the bottom of the insertion column (5), and the cross column (6) is inserted into the interior of the cross groove (4).

2. A torsional shear type high strength bolt according to claim 1, characterized in that: The cross groove (4) is formed through the plum blossom head (3).

3. The torsion shear type high strength bolt according to claim 1, characterized in that: The diameters of the plug post (5) and the cross post (6) are both smaller than the diameter of the plum blossom head (3).

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