CN201979413U

CN201979413U - C-shaped vise grip pliers

Info

Publication number: CN201979413U
Application number: CN2011200888217U
Authority: CN
Inventors: 李军
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-03-30
Filing date: 2011-03-30
Publication date: 2011-09-21
Anticipated expiration: 2021-03-30

Abstract

A pair of C-shaped vise grip pliers belongs to a machining tool and particularly relates to a pair of vise grip pliers for clamping. The pair of vise grip pliers comprises an upper pliers arm and a lower pliers arm, wherein the head part of the upper pliers is fixedly connected with a C-shaped upper pliers nose; the head part of the upper pliers arm, which is positioned below the upper pliers nose, is hinged with a C-shaped lower pliers nose; the other end of the lower pliers nose is hinged with one end of the lower pliers arm; the middle part of the lower pliers is hinged with a movable bar; the middle part of the movable bar protrudes downwards; the other end of the movable bar is arranged in the upper pliers arm; a spring is arranged between the middle part of the lower pliers nose and the middle part of the upper pliers arm; an adjusting bolt is arranged at the tail part of the upper pliers arm and enabled to be propped against the end of the movable bar, which is arranged in the upper pliers arm; the tail part of the lower pliers arm is hinged with a pressure lever; one end of the pressure lever is arranged below the protruding part at the lower part of the movable bar; and a tabular clamp block is hinged with one end part of the upper pliers nose and one end part of the lower pliers nose respectively. The pair of vise grip pliers provided by the utility model has a large clamping force and is cushy to operate.

Description

C type locking pliers

Technical field

The utility model belongs to a kind of machining tool, is specifically related to a kind of locking pliers of clamping.

Background technology

Being used for the common tool that holding workpiece processes at present is the pliers that the tiger pincers wait a lever principle of utilization, when holding workpiece, owing to directly have an effect by people's hand, be directly conducted to workpiece by a lever, cause clamping force less, clamped workpiece is got loose, operation effort and clamping effect are bad, when the workpiece that needs clamping to grow, workpiece need be extended internally and clamp operation, this moment, common pliers can't satisfy this demand.

Summary of the invention

The purpose of this utility model is: provide the big and operation of a kind of clamping force can clamp C type locking pliers than farm labourer's part easily.

The purpose of this utility model is achieved in that C type locking pliers, comprise tong arm and following tong arm, clamp on the fixedly connected C type of the head of last tong arm and chew, being positioned at pincers chews the head of last tong arm of below and is hinged to clamp under the C type and chews, the other end that following pincers are chewed is hinged with an end of following tong arm, the middle part of following tong arm is hinged a motion bar, protrude downwards at the middle part of motion bar, the other end of motion bar is arranged in the tong arm, between the middle part that described pincers are down chewed and the middle part of last tong arm inboard extension spring is set, the described afterbody of going up tong arm is provided with the adjusting bolt, and make the adjusting bolt prop up an end of the motion bar in the tong arm, the described afterbody of tong arm down is hinged a depression bar, and an end of depression bar is arranged on the below at protrusion place, described motion bar bottom; Described upward pincers are chewed and are descended to clamp the end of chewing and are hinged a flat clamp respectively.

The utility model is owing to there is motion bar to be connected between tong arm and the following tong arm, constituted the secondary lever, when holding workpiece, only need very little power workpiece can be clamped, last pincers are chewed with clamping down and are chewed owing to be two relative C types, can clamp long workpiece, workpiece can be extended inward and clamps, two flat clamps can tightly be clamped workpiece; Depression bar on the following tong arm is used to provoke the protrusion place of motion bar, two pincers is chewed opened; The effect of extension spring is to chew when clamping at two pincers, makes it the clamping force that keeps certain, regulates bolt and is used to regulate motion bar in the position in last tong arm, and the opening and closing degree change that pincers are chewed can adapt to different workpiece processing requests.

In sum, the big and operation of the utility model clamping force easily.

Description of drawings

Fig. 1 is a kind of structural representation of the present utility model.

The specific embodiment

As shown in Figure 1, straight shape of the mouth as one speaks locking pliers, comprise tong arm 5 and following tong arm 3, pincers chew 7 on the fixedly connected C type of the head of last tong arm 5, being positioned at pincers chews the head of last tong arm 5 of 7 belows and is hinged to clamp under the C type and chews 8, the end that following pincers are chewed 8 the other end and following tong arm 3 is hinged, the middle part of following tong arm 3 is hinged a motion bar 4, protrude downwards at the middle part of motion bar 4, the other end of motion bar 4 is arranged in the tong arm 5, following pincers are chewed between the middle part of 8 middle part and last tong arm 5 inboards extension spring 6 are set, the afterbody of last tong arm 5 is provided with regulates bolt 1, and makes adjusting bolt 1 prop up an end of the motion bar 4 in the tong arm 5, and the afterbody of following tong arm 3 is hinged a depression bar 2, one end of depression bar 2 is arranged on the below at protrusion place, motion bar 4 bottom, last pincers chew 7 and down pincers chew 8 end and be hinged a flat clamp 9 and 10 respectively.

Claims

1.C type locking pliers, it is characterized in that: comprise tong arm and following tong arm, clamp on the fixedly connected C type of the head of last tong arm and chew, being positioned at pincers chews the head of last tong arm of below and is hinged to clamp under the C type and chews, the other end that following pincers are chewed is hinged with an end of following tong arm, the middle part of following tong arm is hinged a motion bar, protrude downwards at the middle part of motion bar, the other end of motion bar is arranged in the tong arm, between the middle part that described pincers are down chewed and the middle part of last tong arm inboard extension spring is set, the described afterbody of going up tong arm is provided with the adjusting bolt, and make the adjusting bolt prop up an end of the motion bar in the tong arm, the described afterbody of tong arm down is hinged a depression bar, and an end of depression bar is arranged on the below at protrusion place, described motion bar bottom; Described upward pincers are chewed and are descended to clamp the end of chewing and are hinged a flat clamp respectively.