CN205552373U - Novel bolt fastening spanner - Google Patents

Abstract

The utility model provides a novel bolt fastening wrench which is simple in structure, convenient in conversion, and capable of dealing with various types of bolts. A new type of bolt fastening wrench, comprising a handle, one or both ends of the handle are provided with a rotating shaft, the central axis of the rotating shaft is perpendicular to the length direction where the handle is located, and a solid wrench head is arranged on the rotating shaft, and the wrench head It is a regular polyhedron, and each side of the wrench head is provided with screw slots with different sizes. The structure is simple, the conversion is convenient and fast. With the rotation of the wrench head, screw slots matching various types of hexagonal bolt heads can be set on one tool at the same time, which improves the integration of the tool and the work efficiency during construction. .

Description

A new type of bolt tightening wrench

technical field

The utility model relates to a novel bolt fastening wrench, which is widely used for fastening different types of bolts during on-site construction of electric power systems, and belongs to the technical field of electric power construction sites.

Background technique

A wrench is a commonly used installation and removal tool. It is usually made into an opening or socket at one or both ends of the shank to hold a bolt or nut. When in use, the bolt or nut can be twisted by applying an external force on the handle of the wrench along the thread rotation direction by using the principle of leverage.

Different types of bolts need to be fastened on the construction site of electric power engineering, and the main tools are open-end mechanical hand, ring wrench or socket wrench. Two types of bolts can be tightened with an open-end wrench or a ring wrench, while socket wrenches need to be replaced with socket heads according to different bolt models, which means that construction workers on site need to carry multiple wrenches or socket heads . When working at heights, construction workers carry more tools, which causes great inconvenience to work at heights. If the tool model is not correct, it is necessary to pass the tool up and down with the ground personnel, which reduces the work efficiency and may easily bring safety hazards during the transfer process.

Utility model content

The purpose of the utility model is to overcome the shortage of the above tools and provide a new type of bolt tightening wrench with simple structure, convenient conversion, which can deal with various types of bolts.

The technical solution of the utility model is:

A new type of bolt tightening wrench, including a handle, which is special in that: one or both ends of the handle are provided with a rotating shaft, the central axis of the rotating shaft is perpendicular to the length direction where the handle is located, and a solid shaft is provided on the rotating shaft. The wrench head is a regular polyhedron, and each surface of the wrench head is provided with screw slots with different sizes.

Further, the wrench head includes two bottom surfaces parallel to each other and multiple side surfaces, the side surfaces are rectangular, the bottom surface is a regular polygon, and the central axis of the wrench head coincides with the rotating shaft. Preferably, the wrench head is a regular hexahedron.

Further, the above-mentioned rotating shaft is fixedly connected to the handle, and the wrench head can rotate around the rotating shaft. Or the above-mentioned rotating shaft is movably connected to the handle, and the wrench head is fixedly connected to the rotating shaft.

Further, the above-mentioned handle can adopt a straight handle; an elbow can also be provided at one or both ends of the handle, the bending angle of the elbow is 10°-45°, and the rotating shaft is located on the elbow. The design of the elbow is similar to the existing ring wrench, and can be used for bolt loading and unloading in the recess.

Compared with the prior art, the utility model has the following advantages: simple structure, convenient and fast conversion, with the rotation of the wrench head, screw slots matching various types of hexagonal bolt heads can be set on a tool at the same time, which improves the tool The degree of integration and work efficiency during construction.

Description of drawings

Fig. 1 is the structural representation of the utility model.

FIG. 2 is a side view of FIG. 1 .

Fig. 3 is a front view of Fig. 1 .

Figure 4 is a schematic diagram of other structures of the wrench head.

detailed description

Below in conjunction with accompanying drawing, the using method of the present utility model is described in detail.

A novel bolt tightening wrench is composed of a handle 1, a rotating shaft 2, a wrench head 3, and a screw slot 4. Both ends of the handle are provided with rotating shafts, the central axis of the rotating shaft is perpendicular to the length direction of the handle, and a solid wrench head is arranged on the rotating shaft, and the wrench head includes two mutually parallel bottom surfaces 5 and a plurality of side surfaces 6. The side 6 is rectangular, the bottom 5 is square, the central axis of the wrench head coincides with the rotating shaft, and each side of the wrench head is provided with screw slots of different sizes.

Embodiment 1: Referring to Fig. 1-3, the steel handle 1 and the steel wrench head 3 are connected through the steel rotating shaft 2, and the wrench head 3 is a regular hexahedron, and each of the four sides of the steel wrench head 3 A standard hexagonal inner groove is milled out as the screw slot 4, and the handle can be a straight handle. The rotating shaft is fixedly connected to the handle, and the wrench head can rotate around the rotating shaft. During use, rotate the steel wrench head 3 according to the bolt model to select the corresponding screw slot 4, clamp the bolt head in the screw slot 4, and pull the wrench handle 1 to fasten the bolt.

In this embodiment, a new bolt tightening wrench can handle 8 types of bolts.

Embodiment 2: The wrench head 3 can also adopt the structure shown in Figure 4. The wrench head includes two mutually parallel bottom surfaces 5 and five side surfaces 6, the side surfaces 6 are rectangular, and the bottom surface 5 is a regular pentagon. The central axis of the wrench head coincides with the rotating shaft, and screw slots with different sizes are arranged on the five sides of the wrench head. The rotating shaft is movably connected to the handle, and the wrench head is fixedly connected to the rotating shaft. An elbow is provided at one or both ends of the handle. The bending angle of the elbow is 10°-45°. The rotating shaft is located on the elbow. The design of this elbow is similar to that of the existing ring wrench. Can be used for bolt loading and unloading in recessed places.

This new bolt tightening wrench can handle 10 types of bolts.

Claims (6)

1. A novel bolt fastening wrench, comprising a handle, characterized in that: one or both ends of the handle are provided with a rotating shaft, the central axis of the rotating shaft is perpendicular to the length direction where the handle is located, and a solid shaft is provided on the rotating shaft. The wrench head, the wrench head includes two mutually parallel bottom surfaces and a plurality of side surfaces, the side surfaces are rectangular, the bottom surface is a regular polygon, the central axis of the wrench head coincides with the rotating shaft, each of the wrench head There are screw slots of different sizes on each side. 2. The novel bolt tightening wrench according to claim 1, characterized in that: the wrench head is a regular hexahedron. 3. The novel bolt tightening wrench according to claim 1 or 2, characterized in that: the rotating shaft is fixedly connected to the handle, and the wrench head can rotate around the rotating shaft. 4. The new bolt tightening wrench according to claim 1 or 2, characterized in that: the rotating shaft is movably connected to the handle, and the wrench head is fixedly connected to the rotating shaft. 5. The novel bolt tightening wrench according to claim 1 or 2, characterized in that: one or both ends of the handle are provided with an elbow, and the bending angle of the elbow is 10°-45°, The rotating shaft is located at the elbow. 6. The novel bolt tightening wrench according to claim 1 or 2, characterized in that: the handle is a straight handle.