CN2111814U - Reset-type open spanner - Google Patents

Abstract

The utility model relates to a high-efficiency reset-typed open spanner, which is composed of a movable clamp claw 1, a clamp handle 2, a shaft 3 and an arresting pin 4, wherein, the movable clamp claw 1 is mutually connected with the clamp handle 2 through the shaft 3, and is restricted by the arresting pin 4 installed on the clamp handle 2; the movable clamp claw 1 can rotate one angle relative to the clamp handle 2 around the shaft 3. The designed high-efficiency reset-typed open spanner has the characteristics of simple structure, convenient operation, high efficiency, etc. Because the clamp opening position of the spanner is open form, the usage of the spanner is no longer limited by space condition. Simultaneously the spanner adopts the lever clamping rotation principle, and the phenomenon that the open spanner is easy to slip in operation is avoided. The service efficiency of the spanner is enhanced for 30-40% than the existing open spanners. The high-efficiency reset-typed open spanner can be directly used for assembling and disassembling joint threads in fluid pipe passages. The utility model is suitably used in flow line production.

Description

Reset-type open spanner

A kind of efficient homing position type open-end wrench belongs to the fastened tools class.

In the prior art, spanner for mechanical industry is extensive use of, has formed the common tool of many kinds, many specifications as a kind of dismantling device of screw element, and spanner is broadly divided into following two classes:

The open-end wrench class is divided adjustable opening spanner (often claiming monkey wrench) and non-adjustable open-end wrench (often claiming solid wrench) again.This class spanner structure is easy, and the scope of application is wide, but exists operating efficiency low, shortcoming such as easy slippage during work.

Seal the spanner class, divide quincunx non-adjustable spanner, box spanner and wheel spanner several again, these several spanners have the operating efficiency height, advantage such as safe and reliable, but also there is certain defective, particularly be subjected to the restriction in space in use, during as the collar nut on the loading and unloading fluid circuit, seal spanner and can't use.

At the problems referred to above that prior art exists, the purpose of the utility model design is, a kind of spanner of novel structure is provided, it not only has open-end wrench concurrently and seals the advantage of spanner, but also has the operating efficiency height, advantage of many uses, safe and reliable.

The efficient homing position type open-end wrench of the utility model design is made of jaw 1, clamp holder 2, axle 3 and spacer pin 4, and its concrete structure can describe in detail with reference to accompanying drawing.

The description of the drawings:

Accompanying drawing one is the front view of efficient homing position type open-end wrench.

As shown in drawings, the reset-type open spanner of the utility model design is made of movable jaw 1, clamp holder 2, axle 3 and spacer pin 4, and movable jaw 1 has stopper slot 5 and links by axle 3 and clamp holder 2, and be contained in spacer pin 4 restriction on the clamp holder 2, can rotate an angle relative to clamp holder 2 around axle 3.

The reset-type open spanner of the utility model design, its principle and function are presented below: as shown in the figure, movable jaw 1 and clamp holder 2 are subjected to the restriction of spacer pin 4, can rotate an angle around axle 3, make and form a minimum and maximum spanner jaws between movable jaw 1 and the clamp holder 2, and the dimensions length of maximum spanner jaws should be than the slightly larger in diameter in the formed garden, summit of operated nut, and the dimensions length of its minimum spanner jaws is more smaller than the distance between two of the operated nut relatively parallel sides. So just can guarantee normal transposition and the clamping of spanner.

The efficient homing position type open-end wrench of the utility model design, because structure makes an one direction clamping, direction is loosened transposition (be clamp holder 2 be clamping direction away from the direction of movable jaw 1).This structure also is the design's outstanding characteristics, in promptly working, after clamp holder 2 drives the nut rotating certain angle, need be to nut conversion clamped position once, at this moment, as long as oppositely (opposite with clamping direction) rotates clamp holder 2, arrive required clamped position, get final product.

The course of work of the efficient homing position type open-end wrench of the utility model design following (supposing counterclockwise to rotate to clamping): hand is held clamp holder 2 is aimed at nut with folder mouthful direction two side planes, insert spanner, the main clamping area 6 of movable jaw 1 is attached on the plane, left side of nut simultaneously, rotate clamp holder 2 to counter clockwise direction, then clamp holder 2 rotates around axle 3, the boss 9 of its upper end (is separation with axle 3) also rotates counterclockwise, and be pressed on the plane, right side of nut and (this shows, axle 3 is equivalent to a fulcrum, and clamp holder 2 equals a lever); Be rotated further clamp holder 2, the folder mouth that the boss of then movable jaw 1 and clamp holder 2 forms is just clamped nut, and under the effect of power, nut rotates, and after turning over an angle, only need clockwise rotate clamp holder 2.At this moment, the key grip size becomes greatly gradually, and when the angular range that rotates when clamp holder 2 reached the maximum magnitude that spacer pin 4 limited, key grip was of a size of maximum, at this moment, clamp holder 2 clockwise rotates by a spacer pin 4 and axle 3 drive activity jaws 1 and since this moment spanner maximum open greater than the formed circle in nut summit, so, just can make spanner arrive next clamped position easily, further clamp nut circulates with this, reaches fastening purpose.

Use the efficient homing position type open-end wrench of the utility model design, have characteristics such as simple in structure, easy to use, efficient, and because the form that its Jia Kou position is an opening, make the use of spanner no longer be subjected to the restriction of steric requirements; Moreover, because spanner has adopted lever to clamp rotary principle, avoided open-end wrench eely phenomenon in operation, guaranteed the safety that the operator uses; The more existing open-end wrench of its service efficiency has improved 30-40%, and the loading and unloading of the comparatively abominable fluid circuit center tap nut of the condition that can be directly used in.

Most preferred embodiment of the present utility model is made of movable jaw 1, clamp holder 2, axle 3 and spacer pin 4 promptly as shown; Movable jaw 1, link to each other with clamp holder 2 by axle 3, and be subjected to the restriction of spacer pin 4, can only rotate an angle relative to clamp holder 2 around axle 3, movable jaw 1 is provided with two angles that are mutually 120 °, promptly main clamping area 6 and secondary surface 7, in two planes, respectively have one or each groove of 120 ° 8, be used for low-angle transposition and clamp; For making wrench operated convenient, open an angle plane on the top of movable jaw 1, be convenient to spanner and insert nut.Simultaneously, be provided with a boss 9 at the top of clamp holder 2, constitute the auxiliary clamping area of the design's open-end wrench, its operation principle and operating process are the same.Simultaneously, spacer pin 4 can be designed to inverted L shape, changes stopper slot 5 in case of necessity over to, makes open-end wrench become non-adjustable spanner and uses.

Claims (5)

1, a kind of efficient homing position type open-end wrench, it is characterized in that open-end wrench is made of movable jaw 1, clamp holder 2, axle 3 and spacer pin 4, movable jaw 1 has stopper slot 5, links by axle 3 and clamp holder 2, be contained in spacer pin 4 restrictions on the clamp holder 2, can be rotated an angle relative to clamp holder 2 around axle 3.

2, open-end wrench as claimed in claim 1 is characterized in that, movable jaw 1 is provided with main clamping area 6 and secondary surface 7, and is mutually hexagonal angle.

As claim 1 and 2 described open-end wrench, it is characterized in that 3, the main clamping area of live splint melon 1 has groove 8, and uniform.

4, open-end wrench as claimed in claim 1 is characterized in that, the top of clamp holder 2 is provided with the auxiliary clamping area that boss 9 constitutes open-end wrench.

5, open-end wrench as claimed in claim 1 is characterized in that, spacer pin 4 can be designed to inverted L shape.