CN2167815Y - Self-lock pliers - Google Patents

Self-lock pliers Download PDF

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Publication number
CN2167815Y
CN2167815Y CN 93236456 CN93236456U CN2167815Y CN 2167815 Y CN2167815 Y CN 2167815Y CN 93236456 CN93236456 CN 93236456 CN 93236456 U CN93236456 U CN 93236456U CN 2167815 Y CN2167815 Y CN 2167815Y
Authority
CN
China
Prior art keywords
pliers
voussoir
self
circular arc
steel ball
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 93236456
Other languages
Chinese (zh)
Inventor
曹胜元
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN 93236456 priority Critical patent/CN2167815Y/en
Application granted granted Critical
Publication of CN2167815Y publication Critical patent/CN2167815Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a pair of self-lock pliers used as a universal hardware tool, which comprises a left pliers body and a right pliers body. The utility model is characterized in that the switching joint of the left pliers body is provided with a fixed wedge block whose two wedge faces are respectively attached with a plurality of steel balls and a circular arc block. The steel balls and the circular arc block can fall into a circular hole of the switching joint of the right pliers body. The self-lock pliers needs no gripping force to a pliers handle or needs smaller gripping force to wrench a part after the part is clamped. And the clamping injure to the part is small. Compared with an ordinary pliers, the self-lock pliers can wrench the part in a labor saving way and is more practical.

Description

Self-lock pliers
The utility model relates to the pliers as general hardware ﹠ tools, and it comprises left caliper and right caliper body.People are in repairing, make-up machinery or similar operation, often need come clamping and pull part with pliers, usually, after common pliers is clamped part, if pull part, then need to increase the cutter of holding with a firm grip along with the increase of moment of torsion, if moment of torsion is excessive to the pincers handle, jaw might can't clip part and open and skid, and crushes piece surface easily.
The purpose of this utility model provides a kind of pliers, makes after clamping part, need not to increase to the grip force of pincers handle or only need increase less grip force, just can pull part, and can alleviate because of grip force excessive, and crushing to part.
The purpose of this utility model is achieved in that in left caliper switching place adorns a fixing voussoir, respectively enclose several steel balls and a circular arc piece at voussoir two wedge surfaces, pack on the right caliper body in the circular hole of diameter greater than voussoir length, part increases circular arc piece pressure to right caliper body hole inwall to the grip sum of left caliper pincers handle by switching place voussoir force-increasing mechanism to the active force of left caliper jaw and hand, the frictional force limit of circular arc piece and right caliper body inwall increases thereupon, thereby forms a very big prevention left caliper and right caliper body moment of friction in relative rotation.
Preferably have the steel ball raceway on voussoir wedge surface and the circular arc piece straight flange,, and improve the directionality that steel ball rolls so that reduce the contact stress of steel ball to circular arc piece and voussoir.
A fixing catch preferably is equipped with at voussoir wedge surface small end place, makes that steel ball was not directly pressed to right caliper body hole inwall when pliers clamped.
In addition, preferably there is a blind hole at voussoir small end place, loads onto spring and steel ball, so that make plier jaws when not contacting part, the circular arc piece is in relaxed state, and left and right sides caliper rotates flexibly.
The utility model stops left and right sides caliper moment of friction in relative rotation because can produce one after its switching is in jaw to clip to part, common pliers does not then have this specific character, so, it has the non-skid property that common pliers does not possess, it is laborsaving to pull part, and and common pliers different, it can alleviate because of excessive the crushing piece surface of grip force.
Contrast Fig. 1 is described in detail utility model below.
Fig. 1 is the cutaway view of a specific embodiment of the utility model self-locking pincers.
With reference to accompanying drawing: the same numeral among the figure is represented same pieces, the self-locking pincers comprise left caliper 1, one fixing voussoir 2 is arranged on left caliper 1,2 liang of wedge surfaces of voussoir are furnished with steel ball 3 and circular arc piece 4, pack into then in the circular hole of right caliper body 5, catch 6 is equipped with in voussoir 2 raceway ends, makes steel ball 3 not press to the hole inwall of right caliper body 5 when the voussoir wedging.Spring 7 and steel ball 8 are housed in the voussoir 2 termination blind holes makes voussoir 2 positions be in the below, when jaw clips to part 9, voussoir is pushed circular arc piece 4 to right caliper body hole inwall along with the pincers handle inwardly clamps and motion inwards, forms moment of friction and stops relatively rotating of left caliper 1 and right caliper body 5.The voussoir outside is equipped with baffle plate and is blocked right caliper body, and is not shown.

Claims (4)

1, a kind of pliers as general hardware ﹠ tools, it comprises left caliper and right caliper body, it is characterized in that:
(a) left caliper has a fixing voussoir in switching place,
(b) right caliper body has the circular hole of a diameter greater than left caliper voussoir length in switching place,
(c) left caliper voussoir two wedge surfaces respectively are equipped with several steel balls and a circular arc piece, and
(d) and the right caliper body circular hole match.
2, pliers according to claim 1; It is characterized in that the voussoir wedge surface has the straight flange of steel ball raceway and circular arc piece, has the steel ball raceway.
3, pliers according to claim 2 is characterized in that continuous piece wedge surface small end place is equipped with a fixing catch.
4, according to any one described pliers among the claim 1-3, it is characterized in that there is a blind hole at voussoir small end place, in adorn a spring and steel ball.
CN 93236456 1993-03-18 1993-03-18 Self-lock pliers Expired - Fee Related CN2167815Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 93236456 CN2167815Y (en) 1993-03-18 1993-03-18 Self-lock pliers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 93236456 CN2167815Y (en) 1993-03-18 1993-03-18 Self-lock pliers

Publications (1)

Publication Number Publication Date
CN2167815Y true CN2167815Y (en) 1994-06-08

Family

ID=33811632

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 93236456 Expired - Fee Related CN2167815Y (en) 1993-03-18 1993-03-18 Self-lock pliers

Country Status (1)

Country Link
CN (1) CN2167815Y (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101184583B (en) * 2005-04-09 2011-12-07 科尼佩克斯沃克.C.古斯塔夫普奇公司 Pincers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101184583B (en) * 2005-04-09 2011-12-07 科尼佩克斯沃克.C.古斯塔夫普奇公司 Pincers

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C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee