CN201970246U - Movable wrench - Google Patents

Abstract

The utility model discloses a movable wrench which can ensure that a pipeline joint is not damaged by pressing or nibbling and can be flexibly used in a narrow area. The head of the movable wrench is a hexahedral quinquangular sleeve; six faces can be evenly stressed; an opening formed by one unfilled corner permits a pipeline to pass through; the handle and the head of the wrench are connected by a rotary shaft and can randomly rotate and apply force at 180 degrees; the tail part of the handle is provided with a force applying rod inserting hole, which is favorable for applying force when the handle rotates to be parallel to a conduit; a force application point is transferred, and the problem that other tools cannot be used for constructing in the narrow area can be solved.

Description

A kind of monkey wrench

Technical field

The utility model relates to the instrument class, particularly a kind of monkey wrench of tightening or unscrewing pipe joint.

Background technology

Monkey wrench is the hand-operated tools that is used for the installation or removal of pipe joint, and the most frequently used Pipe wrench is the opening monkey wrench in the tradition, is made of handle and the active open that is fixed on tiller grip.When oxygen channel is installed, pipe joint often occurs and be mounted the phenomenon that instrument weighs wounded, chews, find that by analysis the oxygen channel joint is Cu alloy material (HPb59-1) manufacturing, littler than existing open-end wrench material therefor hardness, because during the open-end wrench application of force, be the upper and lower surfaces application of forces, make stressed the concentrating of pipe joint cause the distortion generation to weigh wounded, the open-end wrench porch does not have slick and sly excessively the generation to chew; The another one problem is to being installed in the pipeline of narrow location, and existing instrument can't be constructed because of handle is long.

Summary of the invention

The purpose of this utility model is to provide a kind of monkey wrench, and it is uneven and in the not easy-operating problem of narrow location to solve the existing spanner application of force.

For achieving the above object, the application provides following technical scheme:

A kind of monkey wrench, contain Wrench head and pinch bar, Wrench head has an interior hexagonal hole and a handle mounting groove that opening is arranged, and other has a bearing pin pinch bar to be hinged in the handle mounting groove of Wrench head, and the centerline direction of bearing pin is vertical with interior hexagonal hole centerline direction.

Advantage of the present utility model is, when running into narrow location, pinch bar can be folded to the space at the bearing pin place and open wide the place, the convenient use, the advantage that while the utility model also has is the Wrench head uniform force application, and interior hexagonal hole can alleviate instrument chewing pipe joint.

Below in conjunction with embodiment the application is done and to describe in further detail.

Description of drawings

Fig. 1 is the application's monkey wrench structural representation

Fig. 2 is the structural representation of the application's monkey wrench user mode

Number description: 1 opening, 2 interior hexagonal holes, 3 Wrench heads, 4 bearing pins, 5 pinch bars, 6 through holes, 7 link slots, 8 boosting-rods, 9 pipelines, 10 pipe joints.

The specific embodiment

Referring to accompanying drawing, monkey wrench of the present utility model by Wrench head 3 and pinch bar 5 by 4 hinged compositions of bearing pin, the working portion of Wrench head 3 is the interior hexagonal holes 2 that external opening 1 is arranged, also be provided with the link slot 7 that is connected with pinch bar at Wrench head, this link slot 7 is U-lags, and the two ends of bearing pin 4 are fixed on two sidewalls of link slot 7.During use, the opening 1 of Wrench head is passed pipeline 9, interior hexagonal hole 2 covers are received in the pipe joint 10, because of the interior hexagonal hole 2 work application of force districts of Wrench head are six pentagons, to the pipe joint uniform force application, solved pipe joint and weighed wounded problem, opening 1 is made circular arc chamfering with pipe joint 10 contact positions, solves the problem that pipe joint is chewed.As running into the narrow situation of working space, the termination of pinch bar 5 can be rotated 180 ° in the link slot 7 of bearing pin 4 at Wrench head, to change the angle of handle.In addition in order to strengthen the arm of force under the situation that changes angle at handle, be provided with a through hole at the near caudal end part of handle, by this through hole boosting-rod 8 of pegging graft, as shown in Figure 2.

Such scheme can guarantee that pipe joint is not weighed wounded, chews and can use flexibly at narrow zone.Wrench head is six pentagon sleeves, and six faces can be evenly stressed, and the opening of a unfilled corner formation is that pipeline passes through the place.Pinch bar is connected by rotating shaft with head, can be in 180 ° of scopes rotate arbitrarily, the application of force, the handle afterbody has the boosting-rod patchhole, can be beneficial to handle and turn to and carry out the application of force when parallel with conduit, shift the point of application, solved the problem that other instrument of narrow zone can not be constructed.

Claims (2)

1. monkey wrench, contain Wrench head and pinch bar, it is characterized in that, Wrench head has an interior hexagonal hole and a handle mounting groove that opening is arranged, other has a bearing pin pinch bar to be hinged in the handle mounting groove of Wrench head, and the centerline direction of bearing pin is vertical with interior hexagonal hole centerline direction.

2. monkey wrench as claimed in claim 1 is characterized in that at the near caudal end part of handle a through hole being arranged.

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