CN203426912U

CN203426912U - Wrench

Info

Publication number: CN203426912U
Application number: CN201320552351.4U
Authority: CN
Inventors: 宋红燕
Original assignee: China 19th Metallurgical Corp
Current assignee: China 19th Metallurgical Corp
Priority date: 2013-09-06
Filing date: 2013-09-06
Publication date: 2014-02-12
Anticipated expiration: 2023-09-06

Abstract

The utility model relates to a wrench for dismantling and installing a nut. The wrench comprises a wrench body in a rectangular plate shape, at least one end of the wrench body is provided with a clamping opening, the clamping opening comprises two parallel main clamping surfaces and is further provided with two auxiliary clamping surfaces, one end of every auxiliary clamping surface is respectively connected with the two adjacent main clamping surfaces, and included angles of the ends of the two auxiliary clamping surfaces and the two main clamping surfaces are m; the other end of every auxiliary clamping surface extends into the wrench body and is connected with the wrench body, and included angles of the ends of the auxiliary clamping surfaces and the wrench body are n; and the included angles m and n are 120 degrees. Furthermore, the main clamping surfaces are parallel to the long edge of the wrench body. When the nut is dismantled or installed through the wrench, the main clamping surfaces and the auxiliary clamping surfaces of the clamping opening can be in contact with the nut simultaneously, four force bearing points on the outer contour of the nut are stressed in a scattered mode, and the nut does not deform easily. Beside, the wrench is simple in structure and small in size, and the nut can be dismantled or installed extremely convenient in a small space.

Description

Spanner

Technical field

The utility model relates to the spanner that a kind of dismounting nut is used, and concrete is a kind of fork spanner of dismounting hex nut.

Background technology

Spanner is the common tool in productive life, its role is to assist dismounting or mounting nuts, dismountable connector such as bolt.Spanner can be divided into two kinds of monkey wrench and fork spanners, and the opening size of monkey wrench is adjustable, can adapt to the nut dismounting of sizes; Opening for solid wrench size is fixed, and usually adopts the complete use of fork spanner of multiple different size.Monkey wrench in the market or the opening of fork spanner comprise two parallel clamping faces, utilize clamping face to block two parallel surfaces outside nut, then apply external force, just can realize the dismounting of nut.Stressed two stress points that concentrate on two clamping faces due to nut, cause the stressed place of nut be very easy to deform and damage, and the nut of deformed damaged is stressed because clamping, and can not continue to use, and cannot take off from securing member even completely.

Summary of the invention

Technical problem to be solved in the utility model is: a kind of spanner is provided, when dismounting nut, has four stress points to disperse stressed on nut outline, make nut be difficult for deforming.

The utility model solves the technical scheme that its technical problem adopts:

Spanner, comprise the wrench body that rectangle is tabular, at least one end in described wrench body is provided with bayonet socket, described bayonet socket comprises two parallel main clamping faces, on described bayonet socket, be also provided with two auxiliary clamping faces, one end of described two auxiliary clamping faces is connected with two close main clamping faces respectively, and its angle is m; The other end of two auxiliary clamping faces extends and is connected to each other to wrench body is inner, and its angle is n; Described angle m and n are 120 °.

Further, described main clamping face is parallel with the long limit of wrench body.

Further, described wrench body length is 120mm～150mm, and thickness is 5mm, and the bayonet socket hem width degree on described wrench body upper latch notch both sides is 6mm.

Further, the two ends of described wrench body are all provided with bayonet socket, and described bayonet socket shape is identical, and size is different.

Further, the centre position of described wrench body is provided with through hole.

The beneficial effects of the utility model are: use the utility model spanner, when dismounting nut, the main clamping face on bayonet socket can contact with nut with auxiliary clamping face simultaneously, makes have four stress points to disperse on nut outline stressed, and nut is difficult for deforming.And spanner structure is simple, compact size, very convenient when small space carries out nut dismounting.

Accompanying drawing explanation

Fig. 1 is the schematic top plan view of an embodiment of spanner of the present utility model;

Fig. 2 is the schematic top plan view of another embodiment of spanner of the present utility model;

In figure, parts Reference numeral is: 1-wrench body, 2-bayonet socket, 21-bayonet socket limit, the main clamping face of 22-, the auxiliary clamping face of 23-, 3-through hole.

The specific embodiment

Below in conjunction with drawings and Examples, the utility model is further illustrated: as depicted in figs. 1 and 2:

Spanner, comprise the tabular wrench body of rectangle 1, at least one end in described wrench body 1 is provided with bayonet socket 2, described bayonet socket 2 comprises two parallel main clamping faces 22, on described bayonet socket 2, be also provided with two auxiliary clamping faces 23, one end of described two auxiliary clamping faces 23 is connected with two close main clamping faces 22 respectively, and its angle is m; The other end of two auxiliary clamping faces 23 extends and is connected to each other to wrench body 1 is inner, and its angle is n; Described angle m and n are 120 °.

As the most basic a kind of embodiment, the shape of described wrench body 1 is rectangular tabular, and making material can be conventional stiff materials, for example corrosion resistant plate.At least one end in wrench body 1 is provided with bayonet socket 2, and bayonet socket 2 comprises two parallel main clamping faces 22 and two auxiliary clamping faces 23, main stress surface when main clamping face 22 is twisting nut, and complicated clamping face 23 is less important stress surfaces; One end of described two auxiliary clamping faces 23 is connected with two close main clamping faces 22 respectively, and its angle is 120 °; The other end of two auxiliary clamping faces 23 extends and is connected to each other to wrench body 1 is inner, and its angle is 120 °.It is in order just to meet the contour shape of hex nut that angle between clamping face is designed to 120 °.

Utilize main clamping face 22 to block two parallel surfaces of nut, and utilize auxiliary clamping face 23 against living two other side corresponding to nut.Then can apply external force to nut, just can realize the dismounting of nut, due to the contacts side surfaces that has four faces respectively at nut, on nut, there are four stress points to disperse stressed, two stress points while using with respect to traditional spanner, corresponding the reducing of suffered external force of each stress point, makes the damage that is difficult for deforming of nut outline.According to nut specification and profile in the market, the opening shape of bayonet socket 2 can be arranged to different sizes to adapt to different demands.

The above main clamping face 22 can be in a certain angle with the long limit of wrench body 1, and in embodiment as shown in Figure 2, the main clamping face 22 of the bayonet socket on the left side is in a certain angle with the long limit of wrench body 1.This design, the application of force when some environment for use contributes to operating personnel's dismounting.In addition, described main clamping face 22 also can be parallel with the long limit of wrench body 1.Example embodiment as shown in Figure 1, the main clamping face 22 of bayonet socket 2 is parallel with the long limit of wrench body 1, adopts the spanner of this embodiment, when clockwise and counterclockwise both direction rotating nut, bayonet socket stress equalization.

For main clamping face 22 embodiment parallel with the long limit of wrench body 1, can adopt following size design, described wrench body 1 length is 120mm～150mm, and thickness is 5mm, and bayonet socket limit 21 width on described wrench body 1 upper latch notch 2 both sides are 6mm.Adopt such design size, make spanner itself smaller and more exquisite, can conveniently at some small spaces, use.The width on described bayonet socket limit 21 is set to 6mm, and its intensity can meet the dismounting of most of conventional model nut.

Above embodiment, can all be provided with bayonet socket 2 at the two ends of described wrench body 1, and described bayonet socket 2 shapes are identical, and size is different.Because wrench body 1 two ends are all provided with bayonet socket 2, make spanner two ends may be used to dismounting nut, and the bayonet socket size at two ends is different, a spanner can be for two kinds of nut dismounting of different size.

Above embodiment, can also be provided with through hole 3 in the centre position of described wrench body 1, utilize rope or hook that a plurality of spanners are hung up, and is convenient for carrying and preserves.

Claims

1. spanner, comprise the tabular wrench body of rectangle (1), in at least one end of described wrench body (1), be provided with bayonet socket (2), described bayonet socket (2) comprises two parallel main clamping faces (22), it is characterized in that, on described bayonet socket (2), be also provided with two auxiliary clamping faces (23), one end of described two auxiliary clamping faces (23) is connected with close two main clamping faces (22) respectively, and its angle is m; The other end of two auxiliary clamping faces (23) extends and is connected to each other to wrench body (1) is inner, and its angle is n; Described angle m and n are 120 °.

2. spanner as claimed in claim 1, is characterized in that, described main clamping face (22) is parallel with the long limit of wrench body (1).

3. spanner as claimed in claim 2, is characterized in that, described wrench body (1) length is 120mm～150mm, and thickness is 5mm, and bayonet socket limit (21) width on described wrench body (1) upper latch notch (2) both sides is 6mm.

4. the spanner as described in claim 1,2 or 3, is characterized in that, the two ends of described wrench body (1) are all provided with bayonet socket (2), and described bayonet socket (2) shape is identical, and size is different.

5. the spanner as described in claim 1,2 or 3, is characterized in that, the centre position of described wrench body (1) is provided with through hole (3).