CN202498467U

CN202498467U - Plier for detaching screw

Info

Publication number: CN202498467U
Application number: CN201220095193XU
Authority: CN
Inventors: 何庆吉
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-03-14
Filing date: 2012-03-14
Publication date: 2012-10-24
Anticipated expiration: 2022-03-14

Abstract

The utility model discloses a plier for detaching a screw. The plier comprises an upper plier and a lower plier, wherein the upper plier and the lower plier are hinged via a plier shaft, the front ends of the upper plier and the lower plier are jaws, and the engaged surfaces of the jaws are zigzag. Via the zigzag structures, the friction force between the jaws and the screw can be increased, so that the engagement between the jaws and the screw is close, force application during an operation is accurate, and the work of detaching the screw can be conveniently and rapidly finished.

Description

A kind of pliers of knockout screw

Technical field

The utility model relates to a kind of handheld tool, the pliers of definite a kind of knockout screw of saying so.

Background technology

Pliers is a kind of clamping commonly used in the daily life, the instrument of fixation workpiece.For example, when knockout screw, owing to repeatedly use screwdriver or inner hexagon spanner, one/cross recess of head of screw or interior hex slot easy abrasion, even get rusty and drop, can't operate through above-mentioned instrument.Generally speaking, use pliers instead operates more.But present pliers use is still inconvenient, and for example the cutting pliers jaw is wide, can't operate for microcephaly's screw; The nipper plier jaw is narrow, and is little with the contact area of screw, do not use strength during operation.

The utility model content

The purpose of the utility model provides a kind of pliers of knockout screw, can effectively tighten and unclamps various screws, and is easy to operate.

The utility model is the realization above-mentioned purpose, realizes through following technical scheme: a kind of pliers of knockout screw, comprise and clamping and following pincers that it is hinged that last pincers and following pincers pass through to clamp axle, and the last front end that clamps and clamp down is a jaw, the occlusal surface of described jaw is a zigzag.

In order further to realize the purpose of the utility model, can also adopt following technical scheme: the described rear end end face of pincers down is provided with columniform stock groove, columniform second draw-in groove, and the rear end end face of last pincers is provided with columniform first draw-in groove; U type bar is set in the stock groove; U type bar is made up of columniform stock, connecting rod and columniform quarter butt, and stock is installed in the stock groove, and first spring is set on the stock; The port of stock groove is provided with block; One end of first spring is installed on the stock, and the other end of first spring is installed on the block, and the distance between the stock groove and second draw-in groove is identical with connecting rod; The internal diameter of first draw-in groove and second draw-in groove is not less than the external diameter of quarter butt.All offer steel bead groove on the inwall of described first draw-in groove and second draw-in groove, second spring is installed in the steel bead groove, second spring is positioned at steel bead groove port one side steel ball is installed; On the quarter butt upper side wall arc groove is set, arc groove cooperates with steel ball.

The advantage of the utility model is: jagged structure can increase the frictional force between jaw and the screw, makes between jaw and the screw interlock tightr, firmly accurately, can accomplish the work of knockout screw easily efficiently during operation.The utility model also has compactness simple for structure, advantage cheap for manufacturing cost and easy to use.

Description of drawings

Fig. 1 is the utility model structural representation; Fig. 2 analyses and observe the structure for amplifying sketch map along Figure 1A-A; Fig. 3 is the local structure for amplifying sketch map of the I of Fig. 1.

Reference numeral: 4 times pincers of pincers 3 pincers axles, 5 first draw-in grooves, 6 connecting rods, 7 blocks, 8 second draw-in grooves, 9 grooves, 10 first springs, 11 steel balls, 12 second springs, 13 arc grooves, 14 quarter butts, 15 stocks, 16 steel bead grooves on 1 jaw 2.

The specific embodiment

A kind of pliers of knockout screw, as shown in Figure 1, comprise pincers 2 and following pincers 4, on clamp 2 with pincers 4 are hinged through pincers axle 3 down, on clamp 2 with the front end of pincers 4 down be jaw 1, as shown in Figure 3, the occlusal surface of described jaw 1 is a zigzag.Jagged structure can increase the frictional force between jaw and the screw, makes between jaw and the screw interlock tightr, firmly accurately, can accomplish the work of knockout screw easily efficiently during operation.

For the ease of carrying with regular, as depicted in figs. 1 and 2, the described down rear end end face of pincers 4 is provided with columniform stock groove 9, columniform second draw-in groove 8; The rear end end face of last pincers 2 is provided with columniform first draw-in groove 5, and U type bar is set in the stock groove 9, and U type bar is made up of columniform stock 15, connecting rod 6 and columniform quarter butt 14; Stock 15 is installed in the stock groove 9; First spring 10 is set on the stock 15, and the end that the port of stock groove 9 is provided with block 7, the first springs 10 is installed on the stock 15; The other end of first spring 10 is installed on the block 7, and the distance between the stock groove 9 and second draw-in groove 8 is identical with connecting rod 6; The internal diameter of first draw-in groove 5 and second draw-in groove 8 is not less than the external diameter of quarter butt 14.After finishing using, jaw is closed tightly, on clamp 2 with the rear end of following pincers 4 near, be inserted in first draw-in groove 5 quarter butt 14 fixing.When using, quarter butt 14 is extracted out, serve as that axle rotates with stock 15, again quarter butt 14 is inserted into second draw-in groove 8.Last pincers 2, down clamp 4 and U type bar between form closed hoop, can conveniently hang over kit or buckle; U type bar can prevent that jaw from opening, and convenient regular instrument can avoid that jaw scratches when taking other instruments simultaneously.

For further fixedly quarter butt 15, as shown in Figure 2, all offer steel bead groove 16 on the inwall of described first draw-in groove 5 and second draw-in groove 8, second spring, 12, the second springs 12 are installed in the steel bead groove 16 are positioned at steel bead groove 16 ports one side installation steel ball 11; On quarter butt 14 upper side walls arc groove 13 is set, arc groove 13 cooperates with steel ball 11.Quarter butt 15 inserts in first draw-in groove 5 or second draw-in groove 8, and under the effect of steel ball 11, quarter butt 15 is difficult for being pulled out, and can improve the stability of jaw closed.

The technical scheme of the utility model is not restricted in the scope of the described embodiment of the utility model.The utility model not technology contents of detailed description is known technology.

Claims

1. the pliers of a knockout screw; Comprise pincers (2) and clamp (4) down; Last pincers (2) and following clamp (4) are hinged through pincers axles (3), and the last front end that clamps (2) and following pincers (4) is jaw (1), and it is characterized in that: the occlusal surface of described jaw (1) is a zigzag.

2. the pliers of a kind of knockout screw according to claim 1; It is characterized in that: the described rear end end face of pincers (4) down is provided with columniform stock groove (9), columniform second draw-in groove (8); The rear end end face of last pincers (2) is provided with columniform first draw-in groove (5), and U type bar is set in the stock groove (9), and U type bar is made up of columniform stock (15), connecting rod (6) and columniform quarter butt (14); Stock (15) is installed in the stock groove (9); First spring (10) is set on the stock (15), and the port of stock groove (9) is provided with block (7), and an end of first spring (10) is installed on the stock (15); The other end of first spring (10) is installed on the block (7), and the distance between stock groove (9) and second draw-in groove (8) is identical with connecting rod (6); The internal diameter of first draw-in groove (5) and second draw-in groove (8) is not less than the external diameter of quarter butt (14).

3. the pliers of a kind of knockout screw according to claim 1; It is characterized in that: all offer steel bead groove (16) on the inwall of described first draw-in groove (5) and second draw-in groove (8); Second spring (12) is installed in the steel bead groove (16), and second spring (12) is positioned at steel bead groove (16) port one side steel ball (11) is installed; On quarter butt (14) upper side wall arc groove (13) is set, arc groove (13) cooperates with steel ball (11).