CN205342931U - Breakout tongs is used in water, electricity and gas installation - Google Patents

Abstract

The utility model discloses a breakout tongs is used in water, electricity and gas installation, comprises a first handle and a second handle, it holds to the front end to use keeping silent of breakout tongs, the front end of first handle is equipped with the seat of keeping silent, the front end of seat of keeping silent is equipped with in first the arcs of recesses and keeps silent, the front end of seat and the one end swivelling joint of arc pole keep silent, the other end of arc pole and the first end swivelling joint of straight -bar, the rear side of arc pole is equipped with the interior arcs of recesses of second and keeps silent, the front end of second handle is " L " shape pole and its turning position rear portion swivelling joint with the seat of keeping silent, the straight -bar is equipped with the bar hole, the second end that the downthehole and straight -bar of the bar of straight -bar was arranged in to the outer end of " L " shape pole is by spacing. The utility model discloses a lever principle has increased clamping -force greatly, through the structure that adopts arc pole, straight -bar and " L " shape pole to mutually support, ensure that breakout tongs in use stabilizes the transmission, improves the stability in use, the straight -bar appears to adopt between the pole to hang to adorn with " L " and is connected and is spacing, can separate straight -bar and " L " shape pole with the bigger body of installation diameter.

Description

A kind of water, electricity and gas installation pipe wrench

Technical field

This utility model relates to a kind of water, electricity and gas installation pipe wrench, particularly relates to a kind of water, electricity and gas installation pipe wrench based on lever principle.

Background technology

Traditional water, electricity and gas many employings of installation pipe wrench, so can improve frictional force, thus improving the stability of clamping body.But; a lot of water, electricity and gas tube surfaces have the epoxy resin protective layer that one layer of anti-corrosion capability is strong; for protecting body; extend its life-span; if through body being clamped frequently with the pipe wrench with latch jaw; then can destroy the protective layer of tube surfaces, make body get rusty, time serious, even can cause leakage.If the latch of the jaw of tradition pipe wrench is removed, then can make the problem that tradition pipe wrench exists frictional force deficiency, clamping is not sufficiently stable.

In order to solve the problems referred to above, the utility model patent that the patent No. is " ZL201520246159.1 " discloses a kind of lossless pipe wrench, movable clip including fixed handle, movable handle and arch, the front end of fixed handle is provided with vertical with fixed handle shank and for arch fixing clamp, the front end of movable handle is provided with hook, the front end of movable handle is hinged at fixing clamp rear portion place with the front end of fixed handle, one end of movable clip is hinged with the fixed handle place, lower end of fixing clamp, the other end is hinged with a fixture block, and fixture block is provided with the pin of horizontal direction.This pipe wrench utilizes lever principle to significantly increase chucking power, so its jaw does not have latch can stably clamp body yet；But, the movable handle of this pipe wrench is in use coordinated by lever and fixture block, and it is disconnected structure, uses middle existence to skid and causes the problem that stability is not enough.

Utility model content

The purpose of this utility model is that providing a kind of to solve the problems referred to above adopts anodontia jaw and the strong water, electricity and gas installation pipe wrench based on lever principle of stability.

This utility model is achieved through the following technical solutions above-mentioned purpose:

A kind of water, electricity and gas installation pipe wrench, including first handle and second handle, with the vice jaw part of described pipe wrench for front end, the front end of described first handle is provided with jaw seat, the front end of described jaw seat is provided with the first indent arc vice jaw, the front end of described jaw seat is rotatably connected by bearing pin with one end of bow, the other end of described bow is rotatably connected by bearing pin with the first end of straight-bar, the rear side of described bow is provided with the second indent arc vice jaw, the front end of described second handle is " L " shape bar, the position, turning of described " L " shape bar is rotatably connected by bearing pin with the rear portion of described jaw seat, the outer-end rear side surface of described " L " shape bar is provided with the first limited block and second limited block of evagination, described straight-bar is provided with bar hole and its first end opening, second end is remained silent, the outer end of described " L " shape bar is placed in the bar hole of described straight-bar and the second end termination of described straight-bar is between described first limited block and described second limited block.

As preferably, described first limited block is positioned at the outermost end of described " L " shape bar, the front side surface of described first limited block and the outer-most end surface uniform circular arcs shape of described " L " shape bar.

Further, more laborsaving in use for the ease of pipe wrench, it is provided with extension spring between described first handle and described second handle.

As preferably, described extension spring is located between the middle part of described first handle and the middle part of described second handle.

The beneficial effects of the utility model are in that:

This utility model adopts lever principle to significantly increase chucking power, so its jaw does not have latch can stably clamp body yet；By the structure adopting bow, straight-bar and " L " shape bar to cooperate, it is ensured that pipe wrench is stable drive in use, improving stability in use, overcoming skids causes the problem that stability is not enough；Adopt to mount between straight-bar with " L " shape bar and be connected and spacing with two limited blocks, while guaranteeing stability, it is also convenient for separating straight-bar and " L " shape bar, so that can significantly enlarging between the first indent arc vice jaw and the second indent arc vice jaw, it is simple to the body that diameter is bigger is installed.

Accompanying drawing explanation

Fig. 1 is one of main TV structure schematic diagram of water, electricity and gas installation pipe wrench described in the utility model；

Fig. 2 is the two of the main TV structure schematic diagram of water, electricity and gas installation pipe wrench described in the utility model；

Fig. 3 is the top view of straight-bar described in the utility model, and visual angle is looked with the visual angle in Fig. 1 and Fig. 2 for main in its visual angle.

Detailed description of the invention

Below in conjunction with accompanying drawing, the utility model is described in further detail:

As shown in figures 1 and 3, water, electricity and gas installation pipe wrench described in the utility model includes first handle 11 and second handle 9, with the vice jaw part of described pipe wrench for front end, the front end of first handle 11 is provided with jaw seat 8, the front end of jaw seat 8 is provided with the first indent arc vice jaw 6, the front end of jaw seat 8 is rotatably connected by bearing pin with one end of bow 1, the other end of bow 1 is rotatably connected by bearing pin with the first end of straight-bar 3, the rear side of bow 1 is provided with the second indent arc vice jaw 2, the front end of second handle 11 is " L " shape bar 7, the position, turning of " L " shape bar 7 is rotatably connected by bearing pin with the rear portion of jaw seat 8, the outer-end rear side surface of " L " shape bar 7 is provided with the first limited block 4 and the second limited block 5 of evagination, first limited block 4 is positioned at the outermost end of " L " shape bar 7, the outer-most end surface uniform circular arcs shape of the front side surface of the first limited block 4 and " L " shape bar 7, straight-bar 3 is provided with bar hole 12 and its first end opening, second end is remained silent, the outer end of " L " shape bar 7 is placed in the bar hole 12 of straight-bar 3 and the second end termination of straight-bar 3 is between the first limited block 4 and the second limited block 5, it is provided with extension spring 10 between middle part and the middle part of second handle 9 of first handle 11.

In conjunction with Fig. 1, during use, hand-held first handle 11 and second handle 9 also make second handle 9 outwards rotate to an angle, and " L " shape bar 7 drives straight-bar 3 and bow 1 to rotate, the spacing between the first indent arc vice jaw 6 and the second indent arc vice jaw 2 is made to increase, it is simple to put into body；After putting into body, being pressed for 9 times by second handle, now extension spring 10 also can provide auxiliary power because of reseting elasticity, and " L " shape bar 7 drives straight-bar 3 and bow 1 to reversely rotate, the spacing between the first indent arc vice jaw 6 and the second indent arc vice jaw 2 is made to reduce, it is simple to clamp body tightly.

As shown in Figures 2 and 3, need to increase the enlarging amplitude between the first indent arc vice jaw 6 and the second indent arc vice jaw 2 further so that when installing the bigger body of diameter, after second handle 9 is outwards rotated to an angle, hand-held straight-bar 3 pulls back (or promotion) a bit, then it is lifted up straight-bar 3 making its bar hole 12 traverse the first limited block 4, until making straight-bar 3 completely disengage from " L " shape bar 7, at this moment can rotating curved bar 1 to maximum angle, so that installing the body that diameter is bigger between the first indent arc vice jaw 6 and the second indent arc vice jaw 2.

Above-described embodiment is preferred embodiment of the present utility model; it it is not the restriction to technical solutions of the utility model; as long as without the technical scheme that creative work can realize on the basis of above-described embodiment, be regarded as falling within the scope of the rights protection of this utility model patent.

Claims (4)

1. a water, electricity and gas installation pipe wrench, including first handle and second handle, it is characterized in that: with the vice jaw part of described pipe wrench for front end, the front end of described first handle is provided with jaw seat, the front end of described jaw seat is provided with the first indent arc vice jaw, the front end of described jaw seat is rotatably connected by bearing pin with one end of bow, the other end of described bow is rotatably connected by bearing pin with the first end of straight-bar, the rear side of described bow is provided with the second indent arc vice jaw, the front end of described second handle is " L " shape bar, the position, turning of described " L " shape bar is rotatably connected by bearing pin with the rear portion of described jaw seat, the outer-end rear side surface of described " L " shape bar is provided with the first limited block and second limited block of evagination, described straight-bar is provided with bar hole and its first end opening, second end is remained silent, the outer end of described " L " shape bar is placed in the bar hole of described straight-bar and the second end termination of described straight-bar is between described first limited block and described second limited block.

2. water, electricity and gas installation pipe wrench according to claim 1, it is characterised in that: described first limited block is positioned at the outermost end of described " L " shape bar, the front side surface of described first limited block and the outer-most end surface uniform circular arcs shape of described " L " shape bar.

3. water, electricity and gas installation pipe wrench according to claim 1 and 2, it is characterised in that: it is provided with extension spring between described first handle and described second handle.

4. water, electricity and gas installation pipe wrench according to claim 3, it is characterised in that: described extension spring is located between the middle part of described first handle and the middle part of described second handle.