CN202702102U - Circle wrench - Google Patents
Circle wrench Download PDFInfo
- Publication number
- CN202702102U CN202702102U CN 201220395159 CN201220395159U CN202702102U CN 202702102 U CN202702102 U CN 202702102U CN 201220395159 CN201220395159 CN 201220395159 CN 201220395159 U CN201220395159 U CN 201220395159U CN 202702102 U CN202702102 U CN 202702102U
- Authority
- CN
- China
- Prior art keywords
- caliper
- wrench
- wrench body
- bearing pin
- clamper body
- 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 a circle wrench which is provided with a main wrench body, a middle wrench body, a connecting wrench body and a wrench handle. The main wrench body, the middle wrench body and the connecting wrench body are all in a circular arc shape, one end of the main wrench body is connected with the wrench handle in hinged mode through a hinge pin, the other end of the main wrench body is connected with the middle wrench body in hinged mode through a hinge pin, the other end of the middle wrench body is connected with the connecting wrench body in hinged mode through a hinge pin, the connecting wrench body can rotate around the hinge pin, the other end of the connecting wrench body is inserted into a slotted hole between the connecting end of the main wrench body and the wrench handle to be matched with the front end of the wrench handle in clamped mode, and therefore an O-shaped wrench body is formed. Replaceable toothed blocks are mounted on the inner sides of the circular arcs of the main wrench body and the middle wrench body. The connecting wrench body is provided with two clamping blocking pins which are respectively matched with a clamping face arranged at the front end of the wrench handle for clamping. The circle wrench is simple and reasonable in structure and convenient to operate and use, the toothed blocks can be replaced simply and conveniently, the toothed blocks are not prone to loosen and fall off, a round pipe can be clamped tightly and reliably, the round pipe can not be damaged, and the circle wrench is suitable for clamping pipes with different diameters tightly and meets requirements of screwing operation of various round pipes and round rods.
Description
Technical field
The utility model relates to a kind of manual unloading instrument, specifically a kind of free pliers.
Background technology
We know that free pliers, pipe wrench are the common tools of various pipeline dismounting operations.At present, what generally use is GB8406-87 type pipe wrench, and it is comprised of moving jaw, clamp handle body, adjusting nut, moving jaw is contained in the sleeve pipe of clamp handle body by adjusting nut, rotate adjusting nut, moving jaw can move forward and backward along the clamp handle body, adjusts jaw size with this.The applicant had once proposed No. 201020154872.0 free pliers patent applications, it is provided with fixed caliper and moving caliper, fixed caliper one end and coupling spindle one end are hinged together, the coupling spindle other end adopts threaded engagement to be rotary with the tubular type clamp handle, the fixed caliper other end and moving caliper are hinged, are fixed with the tooth piece through bolt on fixed caliper and the moving caliper.The free pliers of three joints and four joint calipers is also arranged on the market in addition, and wherein the tooth piece on main clamper body and the middle caliper all is fixedly installed, and can not change.
Summary of the invention
Technical problem to be solved in the utility model is to overcome above-mentioned the deficiencies in the prior art, provides a kind of simple and reasonable for structure, easy for operation, and the tooth piece is replaceable, and reliable clamping is not damaged pipe, is suitable for the free pliers that different tube diameters clamps.
The technical scheme in the invention for solving the above technical problem is: a kind of free pliers, it is provided with main clamper body, middle caliper, connect caliper, clamp handle, described main clamper body, middle caliper, connect caliper and be circular arc type, main clamper body one end is hinged by bearing pin and clamp handle, the other end is hinged by a bearing pin and middle caliper, the middle caliper other end passes through a bearing pin and is connected the caliper hinge, connecting caliper can rotate around this bearing pin, the other end inserts in the middle slotted eye of main clamper body and clamp handle link, with clamp handle front end clamping matching, form one " 0 " type caliper, it is characterized in that: described main clamper body, a removable tooth piece is installed respectively in middle caliper circular arc inboard.
Caliper is two joints in the middle of described, is hinged by bearing pin between the caliper in the middle of two joints, and a removable tooth piece is installed on the caliper in the middle of every joint.
Be installed with respectively a tooth block in the middle of described main clamper body, the middle caliper, the screw that the tooth block is provided with tooth piece mounting groove and cooperates with bolt, described tooth piece is provided with bolt hole, and the tooth piece cooperates with screw on the tooth block by bolt and is installed in the tooth block inner side tooth block mounting groove.
One split ring pad or cylindrical spring also is installed between described tooth piece and the tooth block, and the screw that described bolt passes on split ring pad or cylindrical spring and the tooth block is fixed the tooth piece.
Described connection caliper is provided with two screens backing pins, cooperates screens with the snap-latch surface that the clamp handle front end is provided with respectively, realizes the clamping of two kinds of different size calibers.
Described clamp handle is sleeve type structure, it comprises anterior connector, sleeve pipe handle, described anterior connector is hinged by bearing pin and main clamper body, and anterior connector rear end is connected with sleeve pipe handle threaded engagement, described anterior connector front end be provided be connected caliper on the snap-latch surface of screens backing pin cooperation.
The utility model connects caliper and is provided with two screens backing pins owing in main clamper body, middle caliper circular arc inboard one removable tooth piece is installed respectively.Against existing technologies, the utility model is simple and reasonable for structure, and is easy for operation, and the tooth piece is changed easy, be difficult for becoming flexible, coming off, reliable clamping is not damaged pipe, be suitable for the clamping of different tube diameters, realize pipeline unloading use, can satisfy the stubborn apart from the operation needs of various pipes, round bar.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is structural representation of the present utility model.
1. sleeve pipe handles among the figure, 2. anterior connector, 3. bearing pin, 4. screens backing pin, 5. main clamper body, 6. tooth piece, 7. bolt, 8. pin, 9. tooth block, 10. bearing pin, calipers in the middle of 11., 12. bearing pins, 13. connect calipers, 14. cylindrical springs.
The specific embodiment
As can be seen from Figure 1, a kind of free pliers, it is provided with main clamper body 5, middle caliper 11, connects caliper 13, clamp handle, described main clamper body 5, middle caliper 11, connection caliper 13 are circular arc type, main clamper body 5 one ends are hinged by bearing pin 3 and clamp handle, the other end is hinged by a bearing pin 10 and middle caliper 11, middle caliper 11 other ends pass through a bearing pin 12 and are connected caliper 13 hinges, connecting caliper 13 can rotate around this bearing pin 12, the other end inserts in the middle slotted eye of main clamper body 5 and clamp handle link, with clamp handle front end clamping matching, form one " 0 " type caliper.The two ends riveting of bearing pin 3, bearing pin 10, bearing pin 12 is real.
A removable tooth piece 6 is installed respectively in main clamper body 5 described in the utility model, middle caliper 11 circular arc inboards.
Caliper 11 can be a joint in the middle of described, also can be two joints.Also be hinged by bearing pin between the caliper in the middle of two joints, on the caliper a removable tooth piece be installed respectively in the middle of every joint.
Be installed with a tooth block 9 by pin 8 respectively in the middle of described main clamper body 5, the middle caliper 11, sell 8 two ends rivetings in fact.Tooth block 9 also can be weldingly fixed in the middle of main clamper body 5, the middle caliper 11.The screw that described tooth block 9 is provided with tooth piece mounting groove and cooperates with bolt 7, described tooth piece 6 is provided with bolt hole, and tooth piece 6 cooperates with screw on the tooth block 9 by bolt 7 and is installed in the tooth block 9 inner side tooth block mounting grooves.During use, tooth piece 6 damages, and can be convenient for changing.
One split ring pad or cylindrical spring 14 also are installed between described tooth piece 6 and the tooth block 9, and the screw that described bolt 7 passes on split ring pad or cylindrical spring 14 and the tooth block 9 is fixed tooth piece 6.Cylindrical spring 14 or its cushioning effect of split ring pad, like this, tooth piece 6 installs and fixes reliably, is difficult for loosening.
Described connection caliper 13 is provided with two screens backing pins 4, cooperates screens with the snap-latch surface that the clamp handle front end is provided with respectively, realizes the clamping of two kinds of different size calibers.When the screens backing pin 4 of front when snap-latch surface that the clamp handle front end is provided with cooperates screens, can carry out the clamping than the extra heavy pipe footpath; When the screens backing pin 4 of back when snap-latch surface that the clamp handle front end is provided with cooperates screens, can carry out the clamping than slim pipe diameter.
Described clamp handle is sleeve type structure, it comprises anterior connector 2, sleeve pipe handle 1, described anterior connector 2 is hinged by bearing pin 3 and main clamper body 5, anterior connector 2 rear ends are connected with sleeve pipe handle 1 threaded engagement, described anterior connector 2 front ends be provided be connected caliper 13 on the snap-latch surface of screens backing pin 4 cooperations.
The utility model is simple and reasonable for structure, and is easy for operation, and the tooth piece is changed easy, is difficult for becoming flexible, coming off, and reliable clamping is not damaged pipe, is suitable for the clamping of different tube diameters, realizes pipeline unloading use, can satisfy the stubborn apart from the operation needs of various pipes, round bar.
Claims (6)
1. free pliers, it is provided with main clamper body, middle caliper, connect caliper, clamp handle, described main clamper body, middle caliper, connect caliper and be circular arc type, main clamper body one end is hinged by bearing pin and clamp handle, the other end is hinged by a bearing pin and middle caliper, the middle caliper other end passes through a bearing pin and is connected the caliper hinge, connecting caliper can rotate around this bearing pin, the other end inserts in the middle slotted eye of main clamper body and clamp handle link, with clamp handle front end clamping matching, form one " 0 " type caliper, it is characterized in that: described main clamper body, a removable tooth piece is installed respectively in middle caliper circular arc inboard.
2. free pliers according to claim 1 is characterized in that: caliper is two joints in the middle of described, is hinged installation one removable tooth piece on the caliper in the middle of every joint in the middle of two joints between the caliper by bearing pin.
3. free pliers according to claim 1, it is characterized in that: be installed with respectively a tooth block in the middle of described main clamper body, the middle caliper, the screw that the tooth block is provided with tooth piece mounting groove and cooperates with bolt, described tooth piece is provided with bolt hole, and the tooth piece cooperates with screw on the tooth block by bolt and is installed in the tooth block inner side tooth block mounting groove.
4. free pliers according to claim 3, it is characterized in that: split ring pad or a cylindrical spring also is installed between described tooth piece and the tooth block, and the screw that described bolt passes on split ring pad or cylindrical spring and the tooth block is fixed the tooth piece.
5. free pliers according to claim 1, it is characterized in that: described connection caliper is provided with two screens backing pins.
6. free pliers according to claim 1, it is characterized in that: described clamp handle is sleeve type structure, it comprises anterior connector, sleeve pipe handle, described anterior connector is hinged by bearing pin and main clamper body, anterior connector rear end is connected with sleeve pipe handle threaded engagement, described anterior connector front end be provided be connected caliper on the snap-latch surface of screens backing pin cooperation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220395159 CN202702102U (en) | 2012-08-10 | 2012-08-10 | Circle wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220395159 CN202702102U (en) | 2012-08-10 | 2012-08-10 | Circle wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202702102U true CN202702102U (en) | 2013-01-30 |
Family
ID=47582441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220395159 Expired - Fee Related CN202702102U (en) | 2012-08-10 | 2012-08-10 | Circle wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202702102U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108067578A (en) * | 2017-12-23 | 2018-05-25 | 中合国际知识产权股份有限公司 | A kind of pliers for bar jumping-up |
| CN108656000A (en) * | 2017-03-27 | 2018-10-16 | 中国石油化工股份有限公司 | Full-enclosed oil pipe antisitic defect pipe wrench |
| CN108858003A (en) * | 2018-08-14 | 2018-11-23 | 安徽信息工程学院 | Spanner |
-
2012
- 2012-08-10 CN CN 201220395159 patent/CN202702102U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108656000A (en) * | 2017-03-27 | 2018-10-16 | 中国石油化工股份有限公司 | Full-enclosed oil pipe antisitic defect pipe wrench |
| CN108067578A (en) * | 2017-12-23 | 2018-05-25 | 中合国际知识产权股份有限公司 | A kind of pliers for bar jumping-up |
| CN108067578B (en) * | 2017-12-23 | 2020-08-04 | 台州市路桥欧铂喷塑电泳有限公司 | Pliers for upsetting bar |
| CN108858003A (en) * | 2018-08-14 | 2018-11-23 | 安徽信息工程学院 | Spanner |
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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: 20130130 Termination date: 20180810 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |