CN206200832U - A kind of gap spanner - Google Patents

Abstract

The utility model discloses a gap wrench, which comprises a wrench body. The front end of the wrench body is provided with a first fixed claw and a No. 1 claw. The length of the first fixed claw is shorter than that of the No. 1 claw. It is the first clamping surface, the first clamping surface is a plane, the front end of the first fixed claw is provided with a toothed clamp head, the inner side of the toothed clamp head is provided with several second clamping surfaces, the third The clamping surface is arranged adjacent to the second clamping surface, the third clamping surface is arranged parallel to the first clamping surface, and the third clamping surface is arranged at a certain angle with the second clamping surface. When the utility model is in use, the force-bearing area of the nut and the wrench is greatly increased compared with the traditional wrench, so that the force intensity between the nut and the wrench clamping surface can be effectively reduced, so that the clamping surface of the wrench can be guaranteed The outer surface of the nut and the nut is not easily deformed, which can effectively protect the wrench and the nut.

Description

a gap wrench

technical field

The utility model relates to a tool, in particular to a gap wrench.

Background technique

A wrench is a commonly used installation and removal tool. Hand tools for turning bolts, screws, nuts, and other open or socketed fasteners whose threads hold bolts or nuts tightly by the principle of leverage. The wrench is usually formed with an opening or a sleeve hole for clamping a bolt or a nut at one or both ends of the handle. When in use, an external force is applied to the handle along the thread rotation direction to twist the bolt or nut.

Now when the ordinary wrench is loosening the nut, due to the deviation, the two clamping sides of the fixed claw and the movable claw exert force on the nut on the two opposite sides of the hexagonal nut. At this time, the force bearing area between the nut and the wrench is very large. Small, the pressure generated will be very large, so it is easy to damage the corner edge of the nut and the clamping surface of the wrench.

Utility model content

The purpose of this utility model is to provide a gap wrench to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions:

A gap wrench, comprising a wrench body, the front end of the wrench body is provided with a first fixed claw and a first claw, the length of the first fixed claw is smaller than the first claw, and the inner surface of the first claw is the first clamping Surface, the first clamping surface is a plane, the front end of the first fixed claw is provided with a toothed clamp head, the inner side of the toothed clamp head is provided with several second clamping surfaces, the third clamping surface and the first clamping surface The two clamping surfaces are arranged adjacently, the third clamping surface is arranged parallel to the first clamping surface, and the third clamping surface is arranged at a certain angle with the second clamping surface.

As a further solution of the present invention: the included angle between the third clamping surface and the second clamping surface is 120 degrees.

As a further solution of the present invention: the No. 1 claw is a movable claw, and the movable claw is installed on the wrench body through a pin, and a turbine connected with the movable claw and capable of adjusting the activity of the movable claw is arranged on the wrench body.

As a further solution of the utility model: the No. 1 claw is the second fixed claw.

As a further solution of the present invention: the length of the third clamping surface is less than 5 mm.

Compared with the prior art, when the utility model is in use, the stress area of the nut and the wrench is greatly increased compared with the traditional wrench, so that the stress strength between the nut and the wrench clamping surface can be effectively reduced, so that It can ensure that the clamping surface of the wrench and the outer surface of the nut are not easily deformed, and the wrench and the nut can be effectively protected.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of Embodiment 1 of a gap wrench.

Fig. 2 is a disassembled structure schematic diagram of the first embodiment of the gap wrench.

Fig. 3 is a schematic diagram of the force structure of the first embodiment of the gap wrench.

Fig. 4 is a schematic structural diagram of the second embodiment of the gap wrench.

In the figure: 1-plate body, 2-toothed clamp head, 21-second clamping surface, 22-third clamping surface, 3-movable claw, 31-first clamping surface, 4-pin, 5- Turbine, 6-first fixed claw, 7-second fixed claw.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1-3. In Embodiment 1 of the present utility model, a gap wrench includes a wrench body 1. The front end of the wrench body 1 is provided with a first fixed claw 6 and a No. 1 claw. The first fixed claw 6 The length of the No. 1 claw is shorter than that of the No. 1 claw. This design can make the opening space of the wrench larger, and can play a ratchet effect when tightening the nut. It is more suitable for the wrench to be used in a narrow space; the inner surface of the No. 1 claw is the first clamping surface 31, the first clamping surface 31 is a plane, the front end of the first fixed claw 6 is provided with a toothed pincer 2, and the inner side of the toothed pincer 2 is provided with several second clamping surfaces 21, the first The third clamping surface 22 is arranged in contact with the second clamping surface 21, the third clamping surface 22 is arranged parallel to the first clamping surface 31, and the third clamping surface 22 is arranged at a certain angle with the second clamping surface 21. .

The included angle between the third clamping surface 22 and the second clamping surface 21 is 120 degrees.

Described No. 1 claw is movable claw 3, and movable claw 3 is installed on the puller body 1 by pin 4, is provided with the turbine 5 that is connected with movable claw 3 and can regulate movable claw 3 activities on puller body 1.

The length of the third clamping surface is less than 5 mm.

The wrench is an adjustable wrench, and a second clamping surface 21 is provided on the inner side of the toothed pliers head 2, and the third clamping surface 22 is adjacent to the second clamping surface 21. When in use, the turbine 5 can pass through the The position of the movable claw 3 is adjusted so that the first clamping surface 31, the second clamping surface 21, the third clamping surface 22 and the corresponding outer surface of the nut or bolt are tightly clamped, thereby increasing the bearing force between the wrench and the nut or bolt. force contact surface.

When the utility model is in use, the force bearing area of the nut and the wrench is greatly increased compared with the traditional wrench, so that the force intensity between the nut and the clamping surface of the wrench can be effectively reduced, so that the clamping surface of the wrench can be guaranteed The outer surface of the nut and the nut is not easily deformed, which can effectively protect the wrench and the nut.

The length of the third clamping surface is less than 5 mm, and this length range can guarantee the normal use of the ratchet effect of the wrench.

Please refer to Fig. 4, in the second embodiment of the utility model, a gap wrench includes a wrench body 1, the front end of the wrench body 1 is provided with a first fixed claw 6 and a first claw, and the length of the first fixed claw 6 is Smaller than the No. 1 claw, this design can make the opening space of the wrench larger, and can play a ratchet effect when screwing the nut, which is more suitable for the wrench to be used in a narrow space; the inner surface 31 of the No. 1 claw is the first clamping surface 31, the first clamping surface 31 is a plane, and the front end of the first fixed claw 6 is provided with a toothed clamp head 2, and the inner side of the toothed clamp head 2 is provided with several second clamping surfaces 21, and the third The clamping surface 22 is arranged in contact with the second clamping surface 21, the third clamping surface 22 is parallel to the first clamping surface 31, and the third clamping surface 22 is in contact with the second clamping surface 21 and at the joint at an angle.

The angle between the third clamping surface 22 and the second clamping surface 21 is 120 degrees.

The No. 1 claw is the second fixed claw 7 .

The length of the third clamping surface is less than 5 mm.

The wrench is a fixed wrench, and a plurality of continuous second clamping surfaces and third clamping surfaces are provided on the inner side of the toothed pliers head 2. Such a design can realize screwing of different specifications on the same wrench head. One nut is multi-purpose. Compared with the traditional wrench, it can save more tools. It can not only save steel, but also is very convenient to carry.

The length of the third clamping surface is less than 5 mm, and this length range can guarantee the normal use of the ratchet effect of the wrench.

The head of the wrench in the technical solution is provided with a toothed pliers head. The wrench with this structure can minimize the damage to the surface of the nuts and bolts and reduce the damage to the clamping surface of the wrench when screwing the nuts and bolts.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to fall within the scope of the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (5)

1. A gap wrench, comprising a wrench body, the front end of the wrench body is provided with a first fixed claw and a No. 1 claw, it is characterized in that the length of the first fixed claw is less than the No. 1 claw, and the inner part of the No. 1 claw The side is the first clamping surface, and the first clamping surface is a plane. The front end of the first fixed claw is provided with a toothed clamp head, and several second clamping surfaces are provided on the inner side of the toothed clamp head. The third clamping surface is arranged adjacent to the second clamping surface, the third clamping surface is arranged parallel to the first clamping surface, and the third clamping surface is arranged at a certain angle with the second clamping surface. 2. The gap wrench according to claim 1, wherein the angle between the third clamping surface and the second clamping surface is 120 degrees. 3. A gap wrench according to claim 1 or 2, characterized in that the No. 1 claw is a movable claw, and the movable claw is installed on the wrench body through a pin, and a movable claw is provided on the wrench body. And can adjust the turbine of movable claw activity. 4. A gap wrench according to claim 1 or 2, characterized in that the first claw is a second fixed claw. 5. A gap wrench according to claim 1 or 2, characterized in that the length of the third clamping surface is less than 5 mm.