CN105437122B - a wrench - Google Patents

Abstract

The invention belongs to loading and unloading equipment for unions, and discloses a wrench. The wrench has a long handle, a short handle and a wrench. One end of the short handle is detachably connected to the long handle, and the other end of the short handle is detachably connected to the wrench; the wrench is an arc-shaped member, and the wrench is provided with a union boss. Compatible positioning groove. The wrench can prevent the breakage or deformation of the union boss while completing the tightening and loosening of the union; while the wrench meets the required mechanical strength, it saves production materials and reduces the cost; the structure is simple and light, and it is not easy to damage. Ren's demolition task.

Description

a wrench

technical field

The invention relates to the field of union loading and unloading equipment, in particular to a wrench.

Background technique

The union is a pipe connector that is easy to install and disassemble. It is widely used in corrosive liquid pipelines. It is mainly used in discharge pipelines, input pipelines, temporary fluid pipelines, and pipeline connections for conveying fluids under other working conditions. The two tubes can be separated without moving the tube. At present, the known union seal is sealed after being screwed to a certain degree by external force, which is dangerous when operating under the occasion of high and low pressure tests.

Due to the large size of the three claws of the union, it is difficult to clamp the workpiece with an ordinary wrench, which reduces the operating efficiency of installation and disassembly. The tool used for the installation and disassembly of the union in the prior art is an iron hammer, but the iron hammer is too heavy to be used. It is easy to carry, and the hammer will have a greater impact on the union, causing the union to break or deform, especially at the blowout emergency site, because the blowout site is full of natural gas, do not use a hammer to hit the union, so as not to cause sparks and cause accidents The expansion makes the connection of pipelines more difficult. Therefore, it is important to provide a union wrench with a light structure.

Contents of the invention

In order to solve the problem that the union removal device in the prior art is too bulky, causing the union to break or deform, the invention provides a wrench.

In order to solve the above technical problems, the present invention adopts the following technical solutions:

A wrench includes a long handle, a short handle and a wrench. One end of the short handle is detachably connected to the long handle, and the other end of the short handle is detachably connected to the wrench; The positioning groove that matches the boss.

The short handle and long handle as well as the short handle and the wrench adopt a detachable connection method. This flexible connection can be pin connection, which can realize the detachable short handle and long handle as well as the short handle and the wrench, and is suitable for unions of different sizes. , to replace the claws of the positioning slots of different sizes; it is also possible to replace the damaged long handle or short handle.

Because the size of the union is large, if the wrench claw fixes the outer circumference of the union, the wrench claw needs to be set in a large size. The wrench claw of the present invention is provided with a positioning groove that matches the union boss, so that the wrench claw can be avoided If it is set to a large size, it only needs to match the positioning groove of the wrench with the boss of the union; in addition, if only the positioning groove matching the boss is set on the wrench, tighten the wrench and loosen the union. Sometimes, if the force is too large, it is easy to cause the boss of the union to break or deform so that the disassembly task of the union cannot be completed, and damage to the union will increase the cost. Therefore, the wrench of the present invention is designed as an arc structure. While the groove buckles the boss of the union, the claw can also fit well with part of the outer circumference of the union. The wrench claw of the wrench provided by the invention is an arc-shaped member, and a positioning groove matching the union boss is provided on the wrench claw, which can prevent the union boss from breaking or deforming while the union is tightened and loosened. .

Preferably, several ribs are arranged at the end of the long handle. The short handle and the long handle are in direct contact with the rib plate, rather than the end face of the long handle, and neither the long handle nor the short handle is easily damaged.

As a preference, the end of the connection between the short handle and the wrench provided by the present invention is a U-shaped connecting post, and the end face of the U-shaped connecting post is concave, and is adapted to the arc-shaped end face of the wrench; The plane contact of the contact surface, the linear force on the contact surface is uneven, resulting in uneven force between the wrench and the union. During the use of the wrench, if the mechanical force is large, the short handle and the wrench are seriously worn, the wrench provided by the invention , the end face of the U-shaped connecting column of the short handle fits well with the arc-shaped end face of the wrench, so that the mechanical force can be transmitted well, and the wear of the wrench is also reduced to a minimum.

As a preference, a set of through holes is provided on the U-shaped connecting post of the short handle provided by the present invention.

As a preference, two sets of through holes are provided on the two side walls of the wrench provided by the present invention, and a bushing is installed in the through holes. The material of the bushing is different from that of the wrench, and hard materials such as tin bronze can be used, or low-cost materials can be used. For example, it is made of cast iron and other materials; one of the through holes on the two side walls of the wrench is connected with a set of through holes on the U-shaped connecting column through pins. According to actual production needs, the through holes on the two side walls of the wrench A suitable set of holes can be selected to be connected to the through holes of the U-shaped connecting column; in order to avoid wear and tear of the equipment, a bushing is installed in the through hole on the side wall of the wrench and then connected to the through hole of the U-shaped connecting column. Made of hard material, it is not easy to wear and tear, avoiding the wear caused by the contact between the through hole of the wrench and the through hole of the short handle. After the bush is damaged, replace the bush directly without replacing the short handle and the wrench, so that the wrench meets the needs While increasing the mechanical strength, it saves production raw materials and reduces the cost.

The invention provides a wrench. The wrench has a long handle, a short handle and a wrench. One end of the short handle is detachably connected to the long handle, and the other end of the short handle is detachably connected to the wrench. The wrench is an arc-shaped member. A positioning groove matching the union boss is provided on the claw. The wrench can prevent the breakage or deformation of the union boss while completing the tightening and loosening of the union; while the wrench meets the required mechanical strength, it saves production materials and reduces the cost; the structure is simple and light, and it is not easy to damage. Ren's demolition task.

Description of drawings

Fig. 1 is the structural representation of the wrench provided by the present invention;

Fig. 2 is the structural representation when the wrench provided by the present invention is used;

Fig. 3 is the structural representation of the wrench long handle provided by the present invention;

Fig. 4 is a schematic structural view of the short handle of the wrench provided by the present invention.

detailed description

The present invention aims to provide a wrench to solve the problem that the union removal device in the prior art is too bulky, causing the union to break or deform.

In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below in conjunction with specific embodiments and accompanying drawings.

A wrench, comprising a long handle 1, a short handle 2 and a wrench 3, one end of the short handle 1 is detachably connected to the long handle, and the other end of the short handle is detachably connected to the wrench 3; the wrench 3 is an arc-shaped member, The positioning groove 31 matched with the union boss 41 is set on the wrench 3; the arc structure of the wrench 3 and the positioning groove 31 provided on the wrench can be completed while the union 4 is tightened and loosened. Prevent the union boss 41 from breaking or deforming.

Preferably, several ribs 11 are provided at the end of the long handle 1 . The short handle 2 and the long handle 1 are in direct contact with the rib plate 11, rather than the end face of the long handle, and neither the long handle 1 nor the short handle 2 is easily damaged.

Preferably, the end of the short handle 2 and the wrench 3 connected by the present invention is a U-shaped connecting column 22 , and the end surface of the U-shaped connecting column 22 is concave and fits with the arc-shaped end surface of the wrench 3 .

As a preference, a set of through holes 21 are provided on the U-shaped connecting post 22 of the short handle provided by the present invention.

Preferably, two sets of through holes 32 are provided on the two side walls of the wrench provided by the present invention, and a bushing 33 is installed in the through holes. The material of the bushing is different from that of the wrench, and can be made of tin bronze or cast iron.

The wrench provided by the present invention has been introduced in detail above. In this paper, specific examples are used to illustrate the principle and implementation of the present invention, and the descriptions of the above embodiments are only used to help understand the method and central idea of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, some improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims (2)

1. A kind of 1. spanner, it is characterised in that：Including long handle, short handle and pawl is pulled, one end of short handle and long handle are detachable Connection, the other end of short handle and pulls pawl and is detachably connected, if the end of long handle sets arterial highway gusset；It is arc structure to pull pawl Part, the locating slot for setting on pawl and being adapted with union boss is pulled, pulls and two groups of through holes is set on pawl two side, installation lining in through hole Set, for the material of bushing from pulling that pawl is different, the material of bushing is tin bronze or cast iron, short handle with to pull one end that pawl is connected be U Type connecting pole, the end face of U-shaped connecting pole is spill, and the curved end with pulling pawl is adapted.
2. 2. spanner as claimed in claim 1, it is characterised in that：One group of through hole is set on the U-shaped connecting pole of short handle.