CN203293082U - Free clamp - Google Patents
Free clamp Download PDFInfo
- Publication number
- CN203293082U CN203293082U CN2013203530994U CN201320353099U CN203293082U CN 203293082 U CN203293082 U CN 203293082U CN 2013203530994 U CN2013203530994 U CN 2013203530994U CN 201320353099 U CN201320353099 U CN 201320353099U CN 203293082 U CN203293082 U CN 203293082U
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- China
- Prior art keywords
- intermediate plate
- latch
- slips
- groove
- shaped notch
- 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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Abstract
The utility model relates to the field of manual tools, in particular to a free clamp which comprises a locking plate, a middle plate, a connecting plate and a handle. The locking plate and the middle plate are arc-shaped, a groove-shaped notch is formed in the inner side of the arc of each of the locking plate and the middle plate, a protruding edge used for connecting a clamping tile is arranged at an opening of each groove-shaped notch, and the groove-shaped notches and the clamping tile are in interference connection. The free clamp is avoided from being influenced due to distortion and deformation of a rivet due to action of torsion and pressure.
Description
Technical field
The utility model relates to the hand-operated tools field, in particular to a kind of free pliers.
Background technology
At present, domestic geological core drilling is with clamping, comprise rotary tong, interior pipe wrench, outer pipe wrench, the former geology mineral products industry standard DZ/T0058-93 of many foundations manufactures, its primary structure has panel carbide alloy slip-type and electroplated diamond formula, electroplated diamond formula free pliers is because the moment of torsion that it can bear is little, and the limitation of the factors such as easily skid during unloading tubing, be only applicable to the little occasions of unloading torsion such as inner tube.
The peak torque that panel carbide alloy slip-type free pliers allows is large, but, rely on rivet to fix between alloy slips and free caliper, all torsion and pressure radially all can act on this rivet, causing rivet very easily to distort even ruptures, rivet is the most serious weak spot of this type of free pliers, and the torsional deformation of rivet also can have a strong impact on the free pliers body, very easily causes free pliers body rivet hole to pull distortion.
The utility model content
The purpose of this utility model is to provide a kind of free pliers, to solve the above problems.
A kind of free pliers is provided in embodiment of the present utility model, comprise latch, intermediate plate, win in succession and handle, described latch and described intermediate plate are circular-arc, the arc inboard of described latch and described intermediate plate is equipped with groove-shaped notch, the opening part of described groove-shaped notch is provided with the chimb for the clamping slips, and described groove-shaped notch is that interference is connected with described slips.
A kind of free pliers of the utility model above-described embodiment, slips is set in groove-shaped notch, slips adopts interference to be connected with groove-shaped notch, do not need rivet to fix, and while using, torsion and pressure-acting on slips, intermediate plate and latch, thereby avoided causing the rivet torsional deformation due to the effect of torsion and pressure, affect free pliers.
Description of drawings
Fig. 1 shows the front view of the described a kind of free pliers of the utility model embodiment.
In figure:
1, handle; 2, latch axle; 3, win in succession; 4, pincers axle; 5, intermediate plate axle; 6, intermediate plate; 7, slips; 8, elastic cylindrical pin; 9, latch.
The specific embodiment
Also by reference to the accompanying drawings the utility model is described in further detail below by specific embodiment.
A kind of free pliers of above-described embodiment, slips 7 is set in groove-shaped notch, slips 7 adopts interference to be connected with groove-shaped notch, do not need rivet to fix, and while using, torsion and pressure-acting on slips 7, intermediate plate 6 and latch 9, thereby avoided causing the rivet torsional deformation due to the effect of torsion and pressure, affect free pliers.
Be provided with elastic cylindrical pin 8 along vertical and latch 9, intermediate plate 6 plate face directions between slips 7 and latch 9, intermediate plate 6.Elastic cylindrical pin 8, with slips 7 chuckings, when needs are changed slips 7, uses easy drift and hammer that elastic cylindrical pin 8 is ejected, and after the slips 7 that more renews, reinstalls elastic cylindrical pin 8 and gets final product.Elastic cylindrical pin 8 is located at the bottom of groove-shaped notch, has guaranteed that slips 7 is connected with intermediate plate 6 or latch 9 more firm.
Win in succession 3 arc inboard is provided with anti-slop serrations.Win in succession on 3 anti-slop serrations is set, not only by slips 7, prevent from skidding, the anti-slop serrations of winning in succession on 3 also can be further anti-skidding.
Latch 9, intermediate plate 6, win in succession 3 and handle 1 all be enclosed with overcoat.During use, prevent that whole free pliers is corroded, overcoat can be layer of paint.
The material of slips 7 is spring steel.Spring steel has certain toughness and plasticity, can not damage tubing.
During use, handle 1 is connected by latch axle 2 with latch 9, between latch 9 and intermediate plate 6, intermediate plate 6, intermediate plate 6 with win 3 in succession, all by intermediate plate axle 5, connect, latch 9, intermediate plate 6 and win in succession and 3 can form circle, surround the tubing that needs unloading, and the pincers axle 4 of winning in succession on 3 is stuck in the screens of handle 1, hold tubing tightly by slips 7 and anti-slop serrations, thereby realize the unloading of tubing.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (8)
1. free pliers, it is characterized in that: comprise latch, intermediate plate, win in succession and handle, described latch and described intermediate plate are circular-arc, the arc inboard of described latch and described intermediate plate is equipped with groove-shaped notch, the opening part of described groove-shaped notch is provided with the chimb for the clamping slips, and described groove-shaped notch is that interference is connected with described slips.
2. free pliers according to claim 1 is characterized in that: be provided with elastic cylindrical pin along vertical and described latch, described intermediate plate plate face direction between described slips and described latch, described intermediate plate.
3. free pliers according to claim 2, it is characterized in that: described elastic cylindrical pin is located at the bottom of described groove-shaped notch.
4. free pliers according to claim 1, it is characterized in that: described intermediate plate comprises polylith, connects by the intermediate plate axle between adjacent intermediate plate.
5. free pliers according to claim 1, it is characterized in that: described arc inboard of winning in succession is provided with anti-slop serrations.
6. free pliers according to claim 1, it is characterized in that: described handle is provided with for anti-skidding concave convex texture.
7. free pliers according to claim 1 is characterized in that: described latch, described intermediate plate, described win in succession and described handle all is enclosed with overcoat.
8. free pliers according to claim 1, it is characterized in that: the material of described slips is spring steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203530994U CN203293082U (en) | 2013-06-19 | 2013-06-19 | Free clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203530994U CN203293082U (en) | 2013-06-19 | 2013-06-19 | Free clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203293082U true CN203293082U (en) | 2013-11-20 |
Family
ID=49569120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203530994U Expired - Fee Related CN203293082U (en) | 2013-06-19 | 2013-06-19 | Free clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203293082U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111645028A (en) * | 2020-06-05 | 2020-09-11 | 金华一纵一横工业设计有限公司 | Automobile shaft part auxiliary blanking device based on magnetic stripe adsorption |
-
2013
- 2013-06-19 CN CN2013203530994U patent/CN203293082U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111645028A (en) * | 2020-06-05 | 2020-09-11 | 金华一纵一横工业设计有限公司 | Automobile shaft part auxiliary blanking device based on magnetic stripe adsorption |
| CN111645028B (en) * | 2020-06-05 | 2021-07-02 | 金华一纵一横工业设计有限公司 | Automobile shaft part auxiliary blanking device based on magnetic stripe adsorption |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20150619 |
|
| EXPY | Termination of patent right or utility model |