CN2406775Y

CN2406775Y - Wrench

Info

Publication number: CN2406775Y
Application number: CN 00213048
Authority: CN
Inventors: 林滨
Original assignee: Vehicle Inspecting And Fixing Center Jinan Military Command Of P L A
Current assignee: Vehicle Inspecting And Fixing Center Jinan Military Command Of P L A
Priority date: 2000-01-10
Filing date: 2000-01-10
Publication date: 2000-11-22
Anticipated expiration: 2010-01-10

Abstract

The utility model relates to a pipe wrench, comprising a hand lever and an upper arm installed on the hand lever, and the lower surface of the upper arm is provided with two plane surfaces which form an included angle; a wedge-shaped body with an inward tip part is arranged on the operating end surface of the hand lever. When the utility model is used, the upper arm is utilized to make pipes positioned, and then the pipes are tightly clamped by matching the wedge-shaped body with the upper arm; namely, the utility model can carry out normal operation. Because the surfaces of the utility model matched with the pipes are all plane surfaces without tooth veins, the pipes can not be damaged, and accordingly, the service life of the pipes are longer.

Description

Pipe wrench

The utility model is a kind of pipe wrench.

Existing pipe wrench is made up of its handle and upper arm, on the lower surface of the upper surface of handle and upper arm bending part anti-skidding groove is arranged, and they play the effect that prevents that pipe from sliding in use.But these grooves can cause damage to pipe too in use.Sometimes even can make the pipe breakage.

The purpose of this utility model is: design a kind of less to pipe damage, help prolonging the pipeline pipe wrench in service life.

The utility model comprises its handle and the upper arm that is installed on the handle, and the lower surface of upper arm has two planes that have angle, and the inside sphenoid in tip is arranged on the operative end surface of handle.

When using the utility model, utilize upper arm that pipe is located, cooperate tube grip with upper arm by sphenoid again, can carry out normal running.The tooth of synchronous belt not because face that cooperates with pipe of the utility model is the plane, thereby can pipe not damaged, thereby make the service life of pipe longer.

For making things convenient for the location of sphenoid, the prominent muscle of inside guiding can be set in the operative end surface both sides of handle, make the sphenoid lower end have the groove that cooperates with groove.Prominent like this muscle and the guide effect of playing cooperating of groove sphenoid.

In said structure, more or less freely for the adjustment that makes sphenoid, one group of roller can be installed between the lower surface of the operative end surface of handle and sphenoid.

Be handled easily, it vertically has the hole that spring is housed the sphenoid upper edge, and the front side of handle has the baffle plate that cooperates with it, and other installs detent mechanism so that make the sphenoid location behind the compression spring.

Above-mentioned detent mechanism comprises the projection on the sphenoid front end face, the location-plate of installing by a bolt on the projection, and the length of location-plate is greater than the spacing of bolt and spring eye.Rotating bolt just can be regulated the degree of tightness of location-plate, so that make it be fixed on a certain position, as is fixed on the front side of baffle plate, thereby sphenoid is fixed on the outermost position.

Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated.

Fig. 1 is the phantom of the utility model embodiment front view;

The cutaway view that Fig. 2 amplifies for Figure 1A portion;

Fig. 3 for Fig. 2 B to partly cut open figure;

Wherein, 1-upper arm, 2-sphenoid, 3-spring, 4-roller, 5-handle, 6-baffle plate, 7-projection, 8-location-plate.

As shown in the figure, present embodiment comprises handle 5 and upper arm 1, and the lower surface of upper arm 1 is made up of two planes that are an angle.One outstanding part is respectively arranged above the operative end surface both sides of handle 5, and its inboard has prominent muscle, and then there is corresponding groove sphenoid 2 both sides, and above-mentioned prominent muscle matches with groove sphenoid 2 is installed on the handle 5.Between the lower surface of the operative end surface of handle 5 and sphenoid 2, one group of roller 4 is arranged.Along it hole that spring 3 is installed is arranged vertically in the sphenoid 2, be fixed with spring 3 front ends on handle 5 front surfaces corresponding and cooperate baffle plate 6 with the position in this hole.One side in sphenoid 2 front end face upper spring holes has a projection 7, by bolt one location-plate 8 is installed on the projection 7, and the length of this location-plate 8 is greater than the spacing of bolt and spring eye.

Claims

1, a kind of pipe wrench comprises its handle (5) and is installed in upper arm (1) on the handle (5) that it is characterized in that: the lower surface of upper arm (1) has two planes that have angle, and the inside sphenoid in tip (2) is arranged on the operative end surface of handle (5).

2, pipe wrench according to claim 2 is characterized in that: the operative end surface both sides of handle (5) have the prominent muscle of inside guiding, and there is corresponding groove sphenoid (2) both sides.

3, pipe wrench according to claim 2 is characterized in that: between the lower surface of the operative end surface of handle (5) and sphenoid (2) one group of roller (4) is arranged.

4, according to claim 1 or 2 or 3 described pipe wrench, it is characterized in that: it vertically has the hole that spring (3) are housed sphenoid (2) upper edge, and the front side of handle (5) has the baffle plate (6) that cooperates with spring (3), and a location mechanism is arranged.

5, pipe wrench according to claim 4, it is characterized in that: said detent mechanism comprises the projection (7) on sphenoid (2) front end face, projection (7) goes up the location-plate of installing by a bolt (8), and the length of location-plate (8) is greater than the spacing of bolt and spring eye.