CN204209602U

CN204209602U - Rotatable pipe wrench

Info

Publication number: CN204209602U
Application number: CN201420489293.XU
Authority: CN
Inventors: 屈跃曾
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-08-28
Filing date: 2014-08-28
Publication date: 2015-03-18
Anticipated expiration: 2024-08-28

Abstract

The utility model relates to a kind of rotatable pipe wrench, include be provided with fixed caliper one end of cavity by middle part and clamp handle hinged, the afterbody of the other end and moving caliper is hinged, and the head of moving caliper inserts in the cavity of fixed caliper, and fixed caliper and moving caliper form oval pipe wrench bore; Be provided with in clamp handle upper end and prize head, prize head is provided with the convex pleodont that is provided with moving caliper head is meshed prize a boss; Fixed caliper is provided with stopper slot, and it is hinged that what one end of snap close stopping means and clamp handle were provided with prize, and the other end is located in stopper slot.This novel advantage is that running simplifies when installing space is narrow and small; When installing and unload and changing pipeline, eliminate and use common pipe wrench to install or unload the limitation of pipeline by space, the jaw extracting common pipe wrench with needing each property and constantly will adjust common pipe wrench is engaged dynamics with between pipeline, wastes time and energy, simplifies service routine.

Description

Rotatable pipe wrench

Technical field

The utility model relates to Manual pipe tongs field, particularly relates to the Manual pipe tongs that oil drilling uses.

Background technology

In the use procedure of general Manual pipe tongs, there are some problems, one is that caliber is larger, and use pipe wrench volume corresponding also large, weight also weighs, alligator wrench is in use needed to rotate in a direction, if turned after needing pipe wrench to adjust back, often also will constantly Correctional tube jaw footpath one after another, if loosen too large, easily cause pipe wrench from landing pipeline, waste time and energy.During the pipeline that especially installation bore is large, use with it adaptably bigbore pipe wrench time, because pipe wrench self is heavier, if the spacing between the pipeline be provided with in dense space and pipeline or parallel or vertical setting of types pipeline is narrow or with pressing close to wall or corner, the pipeline of dead angle angle that limits by headroom, when Pipe installing operation, pipe wrench cannot operate, particularly difficulty, thus pipe fitting cannot be clamped rapidly or loosen readjustment pipe wrench, thus reduce the result of use of free pliers.

Summary of the invention

The object of the present invention is to provide a kind of rotatable pipe wrench.It is simple and reasonable, easy for operation, need not again and again adjust jaw bore, and not easily landing.

For achieving the above object, the technical scheme that the present invention takes is: a kind of rotatable pipe wrench, its main feature be to include be provided with fixed caliper one end of cavity by middle part and clamp handle hinged, the afterbody of the other end and moving caliper is hinged, the head of moving caliper inserts in the cavity of fixed caliper, and fixed caliper and moving caliper form oval pipe wrench bayonet socket; Be provided with in clamp handle upper end and prize head, prize head is provided with the convex pleodont that is provided with moving caliper head is meshed prize a boss; Fixed caliper is provided with stopper slot, and it is hinged that what one end of snap close stopping means and clamp handle were provided with prize, and the other end is located in stopper slot.

Described rotatable pipe wrench, described snap close stopping means includes snap close limiting plate, by snap close limited block pin-and-hole, bearing pin and prize hinged, between bearing pin and snap close limiting plate, is provided with return spring.

Described rotatable pipe wrench, described clamp handle and the angle β prized between head are 100 °-160 °.

Described rotatable pipe wrench, also includes fixed caliper and clamp handle by prizing a hinge; Fixed caliper and moving caliper are by caliper hinge.

The invention has the beneficial effects as follows: time saving and energy saving, structure is simple, easy to operate, install and unloading and changing connects between threaded pipeline time, especially when installing space is narrow and small, running simplifies; When installing and unload and changing pipeline, eliminate when using common pipe wrench, to install or unloading pipeline is installed or the limitation of unloading space, the jaw extracting common pipe wrench with needing each property and constantly will adjust common pipe wrench is engaged dynamics with between pipeline, waste time and energy, simplify service routine; When using rotatable pipe wrench of the present utility model, only need on the pipeline installed or unload, the fixed caliper of rotatable pipe wrench and moving caliper are stuck in after on pipeline, only need to rotate clamp handle, according to the installation of pipeline or the direction running of unloading, just can automatically sting tight pipeline, after clamp handle runs into obstacle, when needing adjustment readjustment, only need to turn round clamp handle, can jaw be unclamped, when after the clamp handle adjusting angle of revolution, only need again just can according to the installation of pipeline or the direction running of unloading; Do not need to extract pipe wrench one after another, maybe must constantly adjust the jaw of pipe wrench with hand and be engaged dynamics between pipeline, prevent from skidding on the common pipe wrench of use inadaptablely with the dynamics that is engaged between pipeline, increase work efficiency greatly; Especially, when installing or unload large diameter pipeline, pipe wrench is prevented to glide, the casualty accident easily caused; Be install and unload a kind of structure very advanced in threaded plumbing installations at present, use face extremely extensive, especially on chemical industry, boats and ships, aviation, machinery, maintenance, the field such as military, civilian, have promotional value.

Accompanying drawing explanation

Fig. 1 is the main TV structure schematic diagram of rotatable pipe wrench;

Fig. 2 is the partial sectional view of Fig. 1;

Fig. 3 is the A-A sectional view of Fig. 1.

In figure: 1. clamp handle, 2, prize head, 3, prize a boss, 4, fixed caliper, 5, moving caliper, 6, convex pleodont connects bearing pin, 7, snap close stopping means, 8, snap close stopping means, 8-1, snap close limiting plate, 8-2, snap close limited block pin-and-hole, 8-3, bearing pin, 8-4, return spring, 9, stopper slot, 10, caliper bearing pin, 11, prize a bearing pin, 12, tooth engaged block.

Detailed description of the invention

Below in conjunction with accompanying drawing shownschematically preferred example be described in further detail:

Embodiment 1: see Fig. 1, Fig. 2, a kind of rotatable pipe wrench, include be provided with fixed caliper 4 one end of cavity by middle part and clamp handle 1 hinged, the afterbody of the other end and moving caliper 5 is hinged, the head of moving caliper 5 inserts in the cavity of fixed caliper 4, and fixed caliper 4 and moving caliper 5 form oval pipe wrench bayonet socket; Be provided with in clamp handle 1 upper end and prize 2, prize to be provided with on 2 that the convex pleodont 6 that is provided with moving caliper 5 head is meshed prize a boss 3; Fixed caliper 4 is provided with stopper slot 9, and it is 2 hinged that what one end of snap close stopping means 8 and clamp handle 1 were provided with prize, and the other end is located in stopper slot 9.

Described snap close stopping means 8 includes snap close limiting plate 8-1, by snap close limited block pin-and-hole 8-2, bearing pin 8-3 with to prize 2 hinged, between bearing pin 8-3 and snap close limiting plate 8-1, is provided with return spring 8-4.

It is hinged by prizing a bearing pin 10 with clamp handle 1 that rotatable pipe wrench also includes fixed caliper 4; Fixed caliper 4 is hinged by caliper bearing pin 7 with moving caliper 5.

Embodiment 2: see Fig. 1, Fig. 2, described rotatable pipe wrench, described clamp handle 1 and the angle β prized between 2 are 100 °.All the other are identical with embodiment 1.

Embodiment 3: see Fig. 1, Fig. 2, described rotatable pipe wrench, described clamp handle 1 and the angle β prized between 2 are 160 °.All the other are identical with embodiment 1.

Embodiment 4: see Fig. 1, Fig. 2, described rotatable pipe wrench, described clamp handle 1 and the angle β prized between 2 are 120 °.All the other are identical with embodiment 1.

In the process used, a boss 3 is prized on 2 by prizing on free pliers, fixed caliper 4, moving caliper 5, and the convex pleodont 6 of moving caliper, prize the connection between a boss 3 and occlusion, form " O " shape ring of encirclement to operation pipe fitting, by clamp handle 1, to prize on free pliers upper prizes a boss 3 and the convex pleodont 6 of moving caliper, the occlusion of the snap-in force of shape twin conduit, operation pipe fitting can be clamped rapidly and carry out turn operation, after turning to the angle at certain operation dead angle under the operation of pipe fitting at pipe wrench, when needing readjustment pipe wrench, only need to return lightly and lift or turn round clamp handle 1, and to the counter-rotation clamp handle 1 in pipeline operations, 2 snap close limiting plate 8-1 on snap close stopping means 8 is prized by prizing on free pliers, snap close limiting plate 8-1 is by stopper slot 9, ejection fixed caliper 4, with the pipe fitting opening and loosen occlusion of moving caliper 5, drive the revolution of pipe wrench entirety and readjustment.When the snap close limiting plate 8-1 of pipe wrench in operation on snap close stopping means 8 does not open downwards, the convex pleodont 6 of the moving caliper on moving caliper 5 is connected and is engaged with prizing just can not to throw off between a boss 3.

Stopper slot 9 on fixed caliper 4 with prize 2 upper end and be provided with coordinating of the hinge of snap close stopping means 8, being engaged of the round section joint ring that adjustable fixed caliper 4 is formed with moving caliper 5, the elasticity gap size degree of maximum limit fixed tube part outside diameter size and pipe fitting; When by clamp handle 1 prize a boss 3 sting tight pipeline with the convex pleodont 6 of moving caliper time, move after snap close limiting plate 8-1; When clamp handle 1 being lifted or turning round, can unclamp pipeline rapidly, snap close limiting plate 8-1 moves forward; Instantly by open or close snap close limiting plate 8-1 time, just can open and prize a boss 3 and be engaged round section joint ring with the convex pleodont 6 of moving caliper, forming the convex pleodont 6 of moving caliper with prizing de-ly between a boss 3 hooks or is engaged.Thus realize the effect of free pliers rapidly truly.

The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.

Claims

1. a rotatable pipe wrench, it is characterized in that including be provided with fixed caliper one end of cavity by middle part and clamp handle hinged, the afterbody of the other end and moving caliper is hinged, and the head of moving caliper inserts in the cavity of fixed caliper, and fixed caliper and moving caliper form oval pipe wrench bayonet socket; Be provided with in clamp handle upper end and prize head, prize head is provided with the convex pleodont that is provided with moving caliper head is meshed prize a boss; Fixed caliper is provided with stopper slot, and it is hinged that what one end of snap close stopping means and clamp handle were provided with prize, and the other end is located in stopper slot.

2. rotatable pipe wrench as claimed in claim 1, is characterized in that described snap close stopping means includes snap close limiting plate, by snap close limited block pin-and-hole, bearing pin and prize hinged, between bearing pin and snap close limiting plate, is provided with return spring.

3. rotatable pipe wrench as claimed in claim 1, is characterized in that described clamp handle and the angle β prized between head is 100 °-160 °.

4. rotatable pipe wrench as claimed in claim 1, characterized by further comprising fixed caliper and clamp handle by prizing a hinge; Fixed caliper and moving caliper are by caliper hinge.