Traction device for high-strength bolt in bolt-sphere net rack rod piece

Abstract

The invention relates to a traction device for a high-strength bolt in a bolt-sphere net rack rod piece, which is characterized in that the traction device is made of a hard steel bar, one end of the steel bar is processed into a gradually thin needle head shape, and then the front end of the steel bar is folded into a half-moon-shaped hook; the other end is pressed into a flat right-angle hook; the rod piece is inclined by a certain angle, and the rod piece is flatly placed after the high-strength bolt is moved to the position near the conical head; the half-moon-shaped end extends into a conical head hole to be clamped in a thread groove of the high-strength bolt, the high-strength bolt is slowly pulled to an outlet of a conical head, then the flat right-angle hook at the other end is used for pulling the high-strength bolt out of the conical head hole, the sleeve is installed, and the high-strength bolt is connected with the bolt ball after reaching a stable state.

Description

Technical Field

[0001] The patent of this invention relates to a traction device for high-strength bolts inside bolt ball grid rods, which is mainly used in the field of steel structure grid installation. Background Art

[0002] During the installation of the bolt-ball grid structure, the rods and the bolt balls are connected together by high-strength bolts. Since the high-strength bolts are inside the rods in the early stage, it is difficult to take them out when connected with the bolt balls. Usually, the rods are erected manually or mechanically, and then the high-strength bolts are taken out from the cone head before connecting with the bolt balls. This construction method brings great labor intensity to the workers, and is also very dangerous and costly. Summary of the invention

[0003] The purpose of the present invention is to invent a traction device with simple operation, high efficiency and low cost for quickly taking out high-strength bolts from a rod.

[0004] The object of the present invention is achieved in the following ways:

[0005] The traction device is made of hard steel bars. One end of the steel bar is processed into a gradually tapering needle shape, and then the front end is folded into a half-moon shaped hook; the other end is pressed into a flat right-angle hook; the rod is tilted at a certain angle to move the high-strength bolt to the vicinity of the cone head and then the rod is laid flat; one half-moon shaped end is inserted into the cone head hole and stuck in the thread groove of the high-strength bolt, and the high-strength bolt is slowly pulled until it is pulled to the cone head exit, and then the high-strength bolt is pulled out of the cone head hole with the flat right-angle hook at the other end, and the sleeve is installed to connect the high-strength bolt to the bolt ball after it reaches a stable state.

[0006] The advantages of the present invention are: adopting the traction device can effectively improve efficiency, reduce the labor intensity of workers, and reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is the member state diagram.

[0008] Figure 2 yes Figure 1 The tilt diagram.

[0009] Figure 3 It is a half-moon shaped working status diagram.

[0010] Figure 4 This is a working status diagram of a flat right-angle hook.

[0011] Reference Figure 1 , 2, 3, 4, the patent of the present invention includes a half-moon-shaped hook 1, a flat right-angle hook 2, a rod 3, and a high-strength bolt 4. DETAILED DESCRIPTION

[0012] The traction device is made of hard steel bars. One end of the steel bar is processed into a gradually tapering needle shape, and then the front end is folded into a half-moon-shaped hook 1; the other end is pressed into a flat right-angle hook 2; the rod 3 is tilted at a certain angle, so that the high-strength bolt 4 is moved to the vicinity of the cone head and then the rod 3 is laid flat; the half-moon-shaped hook 1 is inserted into the cone head hole and stuck in the thread groove of the high-strength bolt 4, and the high-strength bolt 4 is slowly pulled. When it is pulled to the cone head outlet, the high-strength bolt is pulled out of the cone head hole with the flat right-angle hook at the other end, and the sleeve is installed to connect the high-strength bolt 4 to the bolt ball after it reaches a stable state.

Claims

1. A traction device for high-strength bolts inside bolt ball grid rods, characterized in that: The traction device is made of hard steel bars. One end of the steel bar is processed into a gradually tapering needle shape, and then the front end is folded into a half-moon shaped hook; the other end is pressed into a flat right-angle hook.

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