CN2091205U - Adjustable self-tightening pipe wrench - Google Patents
Adjustable self-tightening pipe wrench Download PDFInfo
- Publication number
- CN2091205U CN2091205U CN 90224473 CN90224473U CN2091205U CN 2091205 U CN2091205 U CN 2091205U CN 90224473 CN90224473 CN 90224473 CN 90224473 U CN90224473 U CN 90224473U CN 2091205 U CN2091205 U CN 2091205U
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- CN
- China
- Prior art keywords
- jaw
- pipe
- self
- adjustable
- 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.)
- Withdrawn
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- 210000000080 chela (arthropods) Anatomy 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 102000004315 Forkhead Transcription Factors Human genes 0.000 description 1
- 108090000852 Forkhead Transcription Factors Proteins 0.000 description 1
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- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
Abstract
A hand tool for detaching the connected screwed pipe is an adjustable self-tightening pipe wrench, which is composed of movable jaw, handle (also used as fixed jaw), regulating nut, screw bolt and rotary axle. The adjustable jaw can be opened or closed by rotating the adjusting nut; the handle is rotated to loosen or clamp the workpiece, the diameter range of the clamping pipe is large, the self-tightening performance is good, the pipe clamping device is obviously superior to the existing similar products, and the pipe clamping device is an ideal hand tool for pipe workers.
Description
The utility model relates to a kind of pipe wrench of hand tools, particularly a kind of adjustable Self-locking pipe tongs.
The pipe wrench that uses on the domestic market has two kinds at present, and a kind of is the adjustable pipe wrench of worm screw (Fig. 1), leans on the size of the mobile adjusting jaw of worm screw, though be suitable for various calibers, what press from both sides is not tight, and jaw slided easily when torsion was big.Another kind is a Self-locking pipe tongs, as Xinji City, Hebei province wrench factory of introducing in " domestic new product compilation ", the speeder wrench that Shanghai people people tools factory produces, the self-adjusting pipe wrench that the south of the River, Wuxi tools factory produces, (the invention 87102730 of Chinese patent bulletin, utility model 8720(299) self-locking type pipe wrench (Fig. 2), as long as jaw is clamped body, turning handle, two jaws are auto lock.But moving jaw can not be adjusted, and hinge is positioned at handle (regular jaw) middle part, and the self-tightening effect is undesirable, and the clamp diameter is limited, gets in groups to make, so carry inconvenience.
The purpose of this utility model is the design pipe wrench that a kind of jaw is adjustable and self-tightening is effective.
Adjustable Self-locking pipe tongs technical characterictic of the present utility model is that moving jaw and adjusting screw(rod) are hinged, its pin joint is positioned at the regular jaw outside, the workpiece contact-making surface of moving jaw and regular jaw is that circular arc clamp tooth is a zigzag, and adjustment member is made up of wing nut, fastening bolt, slide bar.
Simple in structure being easy to of the utility model made, and be easy to carry, high efficiency, and its self-locking property is better than existing like product, is pipeline workman's ideal tools.
Provide embodiment of the present utility model below by accompanying drawing 3 and accompanying drawing 4.
Among the figure, nut, 4 screw rods, 5 handles (the double jaw that fixes), 6 wing nuts, 7 fastening bolts, 8 slide bars are adjusted in 1 adjustable clamp, 2 rotating shafts, 3.
Referring to accompanying drawing 3, moving jaw (1) is Jiong shape, and having the nip part that clamps tooth is entity, and the rear portion is that ear is forked, and ear fork head has a hinge hole.Whole handle (5) is made up of three parts, and the front portion is a regular jaw, and the rear portion is a handle, near the regular jaw place one fixed cover is being arranged.Fixed cover is in handle (5) center line workpiece inlet (being jaw) side.The middle front part of handle (5) is installed in the ear fork of moving jaw (1), and the ear fork is hinged with screw rod (4) termination that is installed in the fixed cover by rotating shaft (2) by hinge hole, and pin joint is positioned at the jaw outside.Moving jaw (1) (2) relative fixed jaw around the shaft rotates.The other end that is contained in the screw rod (4) in the fixed cover is equipped with adjusts nut (3).
Adjustable Self-locking pipe tongs of the present utility model, because pin joint is positioned at the jaw outside, self-tightening is effective, and according to by clamp footpath size, nut (3) is adjusted in rotation during use, and mobile screw (4) makes moving jaw (1) open big or close little.Pincers toothholder turning handle (5) when living body, because the effect of moment of torsion, the relative body workpiece of two jaws auto lock, the big more folder of torsion tight more, thereby pipe wrench does not produce slip.After hours, backward rotation handle (5), two jaws can open again automatically.
Fig. 4 is an another kind of structural shape of the present utility model.Unclamp butterfly spiral shell not (6), mobile slide bar (8).Moving jaw is opened or closure.It is identical that other duty and Fig. 3 provide embodiment.
Claims (3)
1, a kind of adjustable Self-locking pipe tongs of being made up of moving jaw and handle is characterized in that moving jaw and adjusting screw(rod) are hinged, and its pin joint is positioned at the regular jaw outside.
2, adjustable Self-locking pipe tongs according to claim 1 is characterized in that moving jaw and regular jaw are circular arc, and the pincers tooth is a zigzag.
3, adjustable Self-locking pipe tongs according to claim 1 and 2 is characterized in that adjustable part is made up of wing nut, bolt, slide block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90224473 CN2091205U (en) | 1990-11-25 | 1990-11-25 | Adjustable self-tightening pipe wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90224473 CN2091205U (en) | 1990-11-25 | 1990-11-25 | Adjustable self-tightening pipe wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2091205U true CN2091205U (en) | 1991-12-25 |
Family
ID=4902039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90224473 Withdrawn CN2091205U (en) | 1990-11-25 | 1990-11-25 | Adjustable self-tightening pipe wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2091205U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109834726A (en) * | 2017-11-28 | 2019-06-04 | 喜开理株式会社 | Electronic grasping device |
| CN110587527A (en) * | 2018-06-13 | 2019-12-20 | 罗天珍 | Adjustable wrench with self-tightening function |
-
1990
- 1990-11-25 CN CN 90224473 patent/CN2091205U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109834726A (en) * | 2017-11-28 | 2019-06-04 | 喜开理株式会社 | Electronic grasping device |
| CN110587527A (en) * | 2018-06-13 | 2019-12-20 | 罗天珍 | Adjustable wrench with self-tightening function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |