CN201086257Y - Self-locking stress application clamp - Google Patents
Self-locking stress application clamp Download PDFInfo
- Publication number
- CN201086257Y CN201086257Y CNU200720151975XU CN200720151975U CN201086257Y CN 201086257 Y CN201086257 Y CN 201086257Y CN U200720151975X U CNU200720151975X U CN U200720151975XU CN 200720151975 U CN200720151975 U CN 200720151975U CN 201086257 Y CN201086257 Y CN 201086257Y
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- CN
- China
- Prior art keywords
- caliper
- self
- rod
- locking
- pliers
- 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
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- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
Abstract
The utility model relates to a manual tool for clamping and rotating workpieces such as round steel pipes, in particular to force-applying pliers, which is characterized in that a handle (4) of the pliers is connected with a fixed pliers body (2) through a connection sleeve (3); the fixed pliers body (2) is connected with a movable pliers body (1) through a connection shaft (8); a telescopic force applying rod (5) is sheathed in the handle (4) through a fixed cap (6); and a snap spring (7) is arranged in the fixed cap to radially clamp the telescopic force applying rod (5). Accordingly, the utility model has the advantages of reasonable structure, high self-locking and clamping performance, no need for adjustment, firm and reliable structure, convenient force application, convenient disassembly and simple and safe operation and is ideal self-locking force-applying pliers.
Description
Technical field
The utility model relates to hand tools---the pliers of a kind of clamping and rotational circle shaped steel tubing workpiece, especially a kind of self-locking pliers.
Background technology
Pipe wrench is the hand tools of a kind of clamping and rotational circle shaped steel tubing workpiece, through being usually used in connection or operations such as detaching pipelines and maintenance.At present, China generally use and effect preferably pipe wrench be a kind of pliers, by moving jaw, regular jaw, adjusting nut, caliper, sleeve pipe and boosting-rod are formed.By rotating adjusting nut, moving jaw moves forward and backward along caliper, the size of holding diameter with this adjustable pipe clamp; By boosting-rod stretching in sleeve pipe, change the arm of force to change pulling force and torsional moment.But, using this pliers, the rotation adjusting nut will be required great effort time-consuming, and adjusting nut usually sticks the greasy filth dirt again, and adjusting nut is also often malfunctioning with cooperating of moving jaw, and can't regulate or stop up extremely, thereby influences the normal use of pliers.
Summary of the invention
The purpose of this utility model just provides a kind of adjusting nut that avoids, self-locking, solid and reliable, simple and the self-locking pliers that can in time afterburning increase torsional moment of handling safety.
The purpose of this utility model is achieved in that a kind of self-locking pliers, is made up of pincers handle and flexible boosting-rod, it is characterized in that described pincers handle is connected and fixed caliper by adapter sleeve, and fixed caliper is connected with moving caliper by connecting axle.Fixed caliper is by being threaded by adapter sleeve with clamping between the handle front end.It is hook-shaped that moving caliper is, respectively there is a cylindrical boss on terminal both sides, and fixed caliper is and directly turns shape, and the turning circular arc portion embeds in the middle of two cylindrical bosses of moving caliper end, realize the moving caliper fixed caliper movingly by connecting axle, the axial activity of dog screw restriction connecting axle.Flexible boosting-rod is being clamped in the handle by thread bush at the pincers handle tail by locking cap, and flexible boosting-rod can freely stretch in the pincers handle, to increase and to reduce the arm of force, jump ring is housed radially to clamp the boosting-rod that stretches in the locking cap.The utility model is compared the advantage that has with conventional art: rational in infrastructure, and pin voluntarily and clamp the performance height, avoid regulating, solid and reliable, convenient afterburning, handling safety is simple, is a kind of desirable self-locking pliers.
Description of drawings
Figure is a concrete structure schematic diagram of the present utility model.
1, moving caliper 2, fixed caliper 3, adapter sleeve, 4, pincers handle
5, flexible boosting-rod 6, locking cap 7, jump ring 8, connecting axle 9, dog screw
The specific embodiment
Shown in accompanying drawing, the utility model mainly comprises moving caliper, fixed caliper, adapter sleeve, pincers handle, flexible boosting-rod, locking cap, jump ring, connecting axle, dog screw.It is hook-shaped that moving caliper is, and the front end inboard is processed with teeth, and respectively there is a cylindrical boss on terminal both sides; Fixed caliper is and directly turns shape, and the preceding face of turning is processed with teeth, and the turning circular arc portion embeds moving caliper, in the middle of the two terminal cylindrical bosses, realizes moving caliper and fixed caliper movingly by connecting axle; The outside of the terminal cylindrical boss of moving caliper is processed with a hole, by the axial activity of dog screw restriction connecting axle; The front end of the afterbody of fixed caliper and pincers handle all is processed with screw thread, interconnects by adapter sleeve; Flexible boosting-rod is being clamped in the handle by thread bush at the pincers handle tail by locking cap, and flexible boosting-rod can freely stretch in the pincers handle, to increase and to reduce the arm of force; Jump ring is housed, radially to clamp flexible boosting-rod in the locking cap.In use, open hook-shaped moving caliper, the flank of tooth of moving caliper and the flank of tooth of fixed caliper are buckled on the pipe fitting that need be connected or dismantle, need not to regulate, under the effect that puts on the power on pincers handle or the flexible boosting-rod, the two sides teeth can be pinned the clamping pipe fitting voluntarily, transmit torsional moment, and folder is tight more more, and difficult drop-off is finished connection or field-strip; Operation is finished, and the power on acting in opposition pincers handle or the flexible boosting-rod makes the teeth on adjustable clamp and the fixed caliper easily break away from pipe fitting, and handling safety is simple; Adapter sleeve is used to be connected and fixed caliper and pincers handle, makes connection more solid and reliable; Flexible boosting-rod is enclosed in the pincers handle body at ordinary times, is blocked by the jump ring in the locking cap; When needs increase torsional moment, in pincers handle body, extract flexible boosting-rod out in good time, increase torsional moment to increase the arm of force, reach afterburning effect.
Claims (4)
1. a self-locking pliers is made up of pincers handle (4) and flexible boosting-rod (5), it is characterized in that described pincers handle (4) is connected and fixed caliper (2) by adapter sleeve (3), and fixed caliper (2) is connected with moving caliper (1) by connecting axle (8).
2. a kind of self-locking pliers according to claim 1 is characterized in that described fixed caliper (2) is by being threaded by adapter sleeve (3) with clamping between handle (4) front end.
3. a kind of self-locking pliers according to claim 2, it is characterized in that described moving caliper (1) is hook-shaped, respectively there is a cylindrical boss on terminal both sides, fixed caliper (2) is and directly turns shape, the turning circular arc portion embeds in the middle of the two terminal cylindrical bosses of moving caliper (1), realize moving caliper (1) and fixed caliper (2) movingly by connecting axle (8), the axial activity of dog screw (9) restriction connecting axle (8).
4. a kind of self-locking pliers according to claim 1, it is characterized in that described flexible boosting-rod (5) is being clamped in the handles (4) by thread bush at pincers handle (4) afterbody by locking cap (6), flexible boosting-rod (5) can freely stretch in pincers handles (4), to increase and to reduce the arm of force, jump ring (7) is housed, radially to clamp flexible boosting-rod (5) in the locking cap (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720151975XU CN201086257Y (en) | 2007-06-19 | 2007-06-19 | Self-locking stress application clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720151975XU CN201086257Y (en) | 2007-06-19 | 2007-06-19 | Self-locking stress application clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201086257Y true CN201086257Y (en) | 2008-07-16 |
Family
ID=39633847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720151975XU Expired - Fee Related CN201086257Y (en) | 2007-06-19 | 2007-06-19 | Self-locking stress application clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201086257Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110757410A (en) * | 2019-10-18 | 2020-02-07 | 扬州市众达气弹簧有限公司 | Graphite electrode bad joint extractor |
-
2007
- 2007-06-19 CN CNU200720151975XU patent/CN201086257Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110757410A (en) * | 2019-10-18 | 2020-02-07 | 扬州市众达气弹簧有限公司 | Graphite electrode bad joint extractor |
| CN110757410B (en) * | 2019-10-18 | 2021-06-25 | 扬州市众达气弹簧有限公司 | Graphite electrode bad joint extractor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080716 Termination date: 20100619 |