CN2236927Y - Self locking pliers - Google Patents

Self locking pliers Download PDF

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Publication number
CN2236927Y
CN2236927Y CN 94247839 CN94247839U CN2236927Y CN 2236927 Y CN2236927 Y CN 2236927Y CN 94247839 CN94247839 CN 94247839 CN 94247839 U CN94247839 U CN 94247839U CN 2236927 Y CN2236927 Y CN 2236927Y
Authority
CN
China
Prior art keywords
pliers
caliper
self locking
jaw
handle
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 94247839
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Chinese (zh)
Inventor
呼义通
Original Assignee
呼义通
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 呼义通 filed Critical 呼义通
Priority to CN 94247839 priority Critical patent/CN2236927Y/en
Application granted granted Critical
Publication of CN2236927Y publication Critical patent/CN2236927Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

The utility model relates to a pair of self locking pliers. In the self locking pliers, a left pliers body and a right pliers body, and a left handle and a right handle are respectively connected by rivets to form a four-rod mechanism whose integral structure is eudipleural. The self locking purpose can be achieved when the four-rod mechanism rotates over a 'dead point ' position. Mouths of the pliers are provided with various accessories for clamping workpieces of various shapes. The size of the mouths of the pliers can be adjusted by turning the threads of the accessories. The utility model can be mainly used for holding and clamping workpieces for the replacement of people in weld and adhesive joint.

Description

The self-locking pincers
The utility model is a kind of self-locking pincers, and is close with the function of locking pliers.Be mainly used in welding and the bonding middle people of replacement support or clamping work pieces.
At present, known locking pliers is four-bar linkage " dead point " position that utilizes in the planar linkage mechanism, reaches the purpose of self-locking.But the caliper part of this locking pliers is many, and structure is asymmetric, jaw fixed in shape and not parallel with caliper, inapplicable clamping complex appearance workpiece.Screw rod adjustment on the big or small armrest handle of jaw, adjusting range is little.
The purpose of this utility model provides a kind of self-locking pincers, and it has symmetrical configuration, simple, and the big or small adjusting range of jaw is big, speed is fast, and is provided with various jaw annexes, is used for the difform workpiece of clamping.
The purpose of this utility model is achieved in that a left caliper and right caliper body, left handle and right handles are designed to symmetrical structure respectively, connects into complete caliper with four rivets, and its whole caliper also is a left-right symmetry, and this structure constitutes a four-bar linkage.Jaw place at left caliper and right caliper body establishes screwed hole, and nut or jaw annex are installed, and reaches the size of adjusting jaw by swivel bolt or jaw annex.Exert oneself the hand-to-hand grip spindle clamp when holding a workpiece when hand, and center hinge moves up, and when moving to two following hinge horizontal levels, promptly following three hinges are in conllinear, and mechanism is in " dead point " position, and workpiece is clamped.Remove the grip of hand, also can the retaining clip clamping of workpieces.But handle or workpiece are as running into external force at this moment, and center hinge will move downward or upward, and workpiece is unclamped.For guaranteeing the reliable of clamping force, below left caliper, add the casting block, during clamping work pieces, the grip of hand makes center hinge move past " dead point " very small distance, withstands on the block.At this moment, remove the grip of hand, workpiece is firmly clamped, and reaches the purpose of self-locking.When needs unclamp workpiece, utilize moment, in the middle of two handles, establish a release lever, rivet shaft of release lever one end bag, rivet shaft is connected with center hinge by brace, with holding release lever and any one handle, just can unclamp workpiece.
Since adopt such scheme, its symmetrical configuration, simple, the processing and manufacturing of part is easy, and the jaw adjusting range is big, replaceable annex.
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is an appearance assumption diagram of the present utility model.
Fig. 2 is the jaw annex map.
Fig. 3 is the force diagram after the self-locking.
1. right handles, 2. rivet shafts, 3. rivets, 4. rivets, 5. right caliper bodies, 6. bolts, 7. left calipers, 8. rivets, 9. rivets, 10. braces, 11. bag axle sheets, 12. release levers, 13. left handles among the figure
In the embodiment shown in fig. 1, left handle (13), right handles (1), left caliper (7) and available casting of right caliper body (5) or die-forging forming.A public and mother, assembling boring are processed in the junction of left handle (13) and right caliper body (5), right handles (1) and left caliper (7).The rivet hole of subdrilling item 8, the position of the rivet hole of item 9 and item 4 is in isosceles with the rivet hole position of item 8, and at the interior casting muscle edge line of two handles parallel and leave the gauge that release lever (12) and bag axle sheet (11) are installed after locate, the position of 3 rivet hole must be on the horizontal line of the rivet hole of item 9 and item 41 millimeter.The two sides was welded on the release lever after bag axle sheet (11) left the diameter dimension of rivet shaft (2).The place's boring of cylindric jaw, mantle fiber, edge bolt at left caliper (7) and right caliper body (5).During boring, the center line in two holes must be parallel, and parallel with the horizontal line of the rivet hole formation of item 9 and 4.After machined is finished, carry out general assembly: left caliper (7) right caliper body (5) is riveted with rivet (8), left front body (7) and left handle (13) are riveted with rivet (9), right caliper body (5) and right handles (1) are riveted with rivet (4), left handle (13) and right handles (1) are loaded onto down brace (10), with rivet (3) riveted joint, the bag axle sheet (11) on the release lever (12) is bumped into brace (10) up and down, insert rivet shaft (2) riveted joint.
In Fig. 2, one is the anti-skidding jaw in big plane, and one is cylindric tubing jaw, mantle fiber after the employing pier system.

Claims (2)

1. self-locking pincers connect into the hinge four-bar structure to left caliper, right caliper body, left handle and right handles with four rivets, and it is characterized in that: the structure of left caliper and right caliper body, left handle and right handles is symmetry respectively, and whole caliper structure also is a left-right symmetry.
2. self-locking pincers according to claim 1 is characterized in that: at the boring of the jaw place of left caliper and right caliper body, mantle fiber, nut or jaw annex are installed.
CN 94247839 1994-12-16 1994-12-16 Self locking pliers Expired - Fee Related CN2236927Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 94247839 CN2236927Y (en) 1994-12-16 1994-12-16 Self locking pliers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 94247839 CN2236927Y (en) 1994-12-16 1994-12-16 Self locking pliers

Publications (1)

Publication Number Publication Date
CN2236927Y true CN2236927Y (en) 1996-10-09

Family

ID=33852949

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 94247839 Expired - Fee Related CN2236927Y (en) 1994-12-16 1994-12-16 Self locking pliers

Country Status (1)

Country Link
CN (1) CN2236927Y (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101872809A (en) * 2010-06-28 2010-10-27 常州亿晶光电科技有限公司 Manual engaging clamp for aluminum frame of solar cell assembly
CN102975140A (en) * 2012-12-14 2013-03-20 张家港天达特种刀具有限公司 Crimping clamp
CN104942724A (en) * 2015-07-01 2015-09-30 芜湖扬宇机电技术开发有限公司 Parallel clamp
CN106625406A (en) * 2016-12-21 2017-05-10 中国航天时代电子公司 Mini-screw and nut assembly auxiliary assembling tool and assembling method
CN113524060A (en) * 2021-07-22 2021-10-22 合肥海尔电冰箱有限公司 Capillary tube pliers

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101872809A (en) * 2010-06-28 2010-10-27 常州亿晶光电科技有限公司 Manual engaging clamp for aluminum frame of solar cell assembly
CN102975140A (en) * 2012-12-14 2013-03-20 张家港天达特种刀具有限公司 Crimping clamp
CN104942724A (en) * 2015-07-01 2015-09-30 芜湖扬宇机电技术开发有限公司 Parallel clamp
CN106625406A (en) * 2016-12-21 2017-05-10 中国航天时代电子公司 Mini-screw and nut assembly auxiliary assembling tool and assembling method
CN113524060A (en) * 2021-07-22 2021-10-22 合肥海尔电冰箱有限公司 Capillary tube pliers

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Legal Events

Date Code Title Description
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