CN204628204U - One is anti-unloads anti-theft bolt external member - Google Patents

Abstract

An anti-dismantling and anti-theft bolt kit, which is mainly composed of bolts, special wrench, and tapered pin. The bolts are used to fix parts. When fastening, insert the cylinder on the special wrench into the hole on the top of the bolt, and rotate the special wrench to make the bolt To fasten the part, after tightening, the tapered pin is interference fit into the hole at the top of the bolt, the tapered pin is not exposed. The utility model realizes the function of preventing disassembly through the installation and fixing holes and plugging parts designed at the top, and the special structure that the top is round and unable to apply force. It has the advantages of simple structure, labor-saving construction, high efficiency and quickness, and can effectively The processing cost is reduced, and the effect of anti-dumping and anti-theft is good.

Description

Anti-dismounting and anti-theft bolt kit

technical field

The utility model relates to the technical field of fastening devices, in particular to an anti-unloading and anti-theft bolt kit.

Background technique

As fasteners, bolts have been widely used in various industries. Although ordinary bolts have the advantages of simple operation and convenient disassembly, it brings convenience to some criminals who carry out theft, that is, these criminals can artificially disassemble the bolts and carry out theft as long as they use common dismounting wrenches. In order to effectively prevent this kind of illegal behavior, the prior art has carried out the anti-theft structure design to the bolt. At present, the most common anti-unloading and anti-theft bolt structure is to open an axial pin groove on the screw rod of the bolt, and pass through the screw rod arranged on the nut. When the axial pin slots are used together, the user can insert an anti-theft pin into the axial hole formed by the two axial pin slots, thereby preventing abnormal disassembly of the bolts and nuts. The utility model patents with the above-mentioned similar anti-theft structure have been disclosed on the website of the State Intellectual Property Office of China. Bolts" and "slotted wedge type direct sales anti-theft bolts". However, these structures have the disadvantages of high processing difficulty and high cost.

Contents of the invention

The utility model aims at the shortcomings of the existing anti-unloading bolts, and designs an anti-unloading and anti-theft bolt set, which can effectively reduce costs, reduce processing difficulty, facilitate construction, and improve work efficiency.

The utility model is achieved through the following technical measures:

An anti-dismantling anti-theft bolt kit, mainly composed of bolts, special wrench, tapered pin, the bolts are used to fix parts, when fastening, insert the cylinder on the special wrench into the hole on the top of the bolt, rotate the special wrench to make the bolt After fastening the parts, the tapered pin is interference fit into the hole at the top of the bolt, and the tapered pin is not exposed. Through this technical solution, because the top of the bolt is round, no torque can be applied, thereby preventing dismounting and anti-theft effect.

At least two holes are processed on the top of the bolt.

There are at least two cylindrical structures on the special wrench.

The beneficial effects of the utility model are: an anti-unloading and anti-theft bolt kit, through the installation and fixing hole and the plugging part designed at the top, and the special structure that the top is round and unable to apply force, and then realizes the function of preventing disassembly, with The advantages of simple structure, labor-saving construction, high efficiency and quickness can effectively reduce the processing cost, and the effect of anti-unloading and anti-theft is good.

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Description of drawings

Fig. 1 is a schematic diagram of the principle structure when the utility model is installed.

Fig. 2 is a schematic diagram of the bolt structure of the present invention.

Fig. 3 is a structural schematic diagram of the special wrench of the present invention.

Fig. 4 is a structural schematic diagram of the utility model when it is installed.

Fig. 5 is a schematic diagram of the structure of the tapered pin of the present invention.

Among the figure: 1-bolt, 2-special wrench, 3-tapered pin.

Detailed ways

In order to clearly illustrate the technical features of the solution, the solution will be described below through a specific implementation mode and in conjunction with the accompanying drawings.

An anti-dismantling and anti-theft bolt kit, mainly composed of a bolt 1, a special wrench 2, and a tapered pin 3. The bolt 1 is used to fix the parts, as shown in Figure 1 and Figure 2. When tightening, the special wrench 2 The cylinder is inserted into the hole at the top of the bolt 1, and the special wrench 2 is rotated to make the bolt 1 fasten the part. After tightening, as shown in Figure 3, the tapered pin 3 is interference-fitted into the hole at the top of the bolt 1, and the tapered pin 3 No exposure, through this technical solution, because the top of the bolt 1 is round, no torque can be applied, and thus play the role of anti-dismounting and anti-theft.

As shown in FIG. 2 , at least two holes are processed on the top of the bolt 1 .

As shown in FIG. 3 , the special wrench 2 has at least two cylindrical structures.

Although the preferred examples of the present utility model have been described above in conjunction with the accompanying drawings, the present utility model is not limited to the above-mentioned specific embodiments, and the above-mentioned specific embodiments are only illustrative and not restrictive. Under the enlightenment of the utility model, technicians can also make many forms without departing from the purpose of the utility model and the protection scope of the claims, and these all belong to the protection scope of the utility model.

Claims (3)

1. prevent unloading anti-theft bolt external member for one kind, primarily of bolt (1), special spanner (2), taper pin (3) forms, bolt (1) is used for fixing component, it is characterized in that: time fastening, cylinder on special spanner (2) is inserted in the hole at bolt (1) top, rotate special spanner (2) and make bolt (1) secure component, after tightening, taper pin (3) is interference fit in the hole at bolt (1) top, taper pin (3) does not expose, by this technological scheme, top due to bolt (1) is circular, cause and cannot apply moment, and then play and anti-unload anti-theft function.

2. one as claimed in claim 1 is anti-unloads anti-theft bolt external member, it is characterized in that: the top of described bolt (1) is at least processed with two holes.

3. one as claimed in claim 1 is anti-unloads anti-theft bolt external member, it is characterized in that: described special spanner (2) has two round column structures at least.