CN110340834A - A kind of lossless pipe wrench and application method - Google Patents
A kind of lossless pipe wrench and application method Download PDFInfo
- Publication number
- CN110340834A CN110340834A CN201910701121.1A CN201910701121A CN110340834A CN 110340834 A CN110340834 A CN 110340834A CN 201910701121 A CN201910701121 A CN 201910701121A CN 110340834 A CN110340834 A CN 110340834A
- Authority
- CN
- China
- Prior art keywords
- handle
- caliper
- adjustable
- pipe wrench
- pulling claw
- 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- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B13/00—Spanners; Wrenches
- B25B13/48—Spanners; Wrenches for special purposes
- B25B13/50—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes
- B25B13/5008—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes for operating on pipes or cylindrical objects
- B25B13/5016—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes for operating on pipes or cylindrical objects by externally gripping the pipe
- B25B13/5025—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes for operating on pipes or cylindrical objects by externally gripping the pipe using a pipe wrench type tool
- B25B13/5041—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes for operating on pipes or cylindrical objects by externally gripping the pipe using a pipe wrench type tool with movable or adjustable jaws
Abstract
The invention discloses the lossless pipe wrench that one kind does not damage pipe surface, which is characterized in that a kind of lossless pipe wrench, which is characterized in that be made of caliper, handle and adjustable pulling claw；The handle front end is hinged on the upper back position of caliper with pin shaft, and the front end of handle is equipped with abduction rod head upward；The adjustable pulling claw is the component that a front end is arcuation, rear end is straight-bar, and straight-bar rear portion is equipped with row's pin hole, hinged by any pin hole and handle；The front lower position of caliper is equipped with the adjustable top pawl forward extended out, and adjustable top pawl corresponds to each other to form jaw with the arcuation position of adjustable pulling claw；The front end of the arcuation position inner face of adjustable pulling claw and adjustable top pawl is bonded with mutual corresponding friction plate respectively；When pipe wrench, which is stuck in, pulls handle on tube, jaw is made to generate intensifying force；The front and back pin hole articulated position at straight-bar rear portion is exchanged, the size of jaw can be changed to adapt to different calibers.
Description
Technical field
The present invention relates to pipe wrench used in pipeline installation engineering.
Background technique
In pipeline installation engineering, generallys use pipe wrench and certain torque is applied to pipeline.Above-mentioned pipe wrench is clamping and rotation
The tool for turning steel pipe class has adjustable wrench formula and chain-type.Adjustable wrench formula pipe wrench is made of caliper, handle, movable jaw and nut, wherein
Handle and caliper are integral part, and the front end face of caliper has tooth, and the top surface of caliper is equipped with square hole and notch, and movable jaw is one
Front end has tooth corresponding with caliper front end face tooth, rear lug in 90 degree of bendings, the component that rear end is straight-bar, bending inner face
Equipped with screw thread, rear lug is inserted into the square hole of caliper top surface, and the nut is mounted in notch and is spun on the screw thread of rear lug, is adjusted
The size that nut can adjust jaw adapts to different calibers, and when pulling, by two sides, tooth stings tight tube, prevents from skidding, no
Foot is to easily cause to gnaw pipe surface bad, influences tube appearance and installation quality.So the pipe wrench category of the prior art
In damaging pipe wrench.
In addition, be commonly encountered and needed in technical requirements using a certain amount of torque applied force in pipeline installation engineering,
Or need to measure the size of Pipe installing torque, but current pipe wrench can only apply torque, but do not know the firmly size of torque,
It needs to grasp by people's experience itself, it is very not scientific, it is sought after a kind of digital display survey torque pipe wrench.
Summary of the invention
The purpose of the present invention is proposing a kind of lossless pipe wrench for not damaging pipe surface for the deficiency for damaging pipe wrench,
Another object is that propose it is a kind of do not damage pipe surface again and can show the lossless pipe wrench of torque, and propose above-mentioned lossless pipe
The application method of pincers, to meet the needs of pipeline installation engineering.
Technical solution is: a kind of lossless, which is characterized in that be made of caliper, handle and adjustable pulling claw；Before the handle
End is hinged on the upper back position of caliper with pin shaft, and the front end of handle is equipped with abduction rod head upward；The adjustable pulling claw is one
The component that a front end is arcuation, rear end is straight-bar, straight-bar rear portion is equipped with row's pin hole, hinged by any pin hole and handle；Institute
It states the front lower position of caliper and is equipped with the adjustable top pawl forward extended out, adjustable top pawl corresponds to each other to be formed with the arcuation position of adjustable pulling claw
Jaw；The front end of the arcuation position inner face of adjustable pulling claw and adjustable top pawl is bonded with mutual corresponding friction plate respectively；Work as pipe wrench
It is stuck on tube when pulling handle, small relative rotation occurs with caliper first for handle, and abduction rod head will pull adjustable pulling claw
It moves backward, so that jaw be made to generate intensifying force；The front and back pin hole articulated position at straight-bar rear portion is exchanged, the size of jaw can be changed
To adapt to different calibers.
Further, the structure that is hinged of the caliper, handle and adjustable pulling claw is:
The upper back position of caliper is equipped with caliper notch and pin hole, and the front end of handle is inserted in hinged with pivot pin in caliper notch；Handle
Abduction rod head be equipped with abduction rod notch and pin hole, adjustable pulling claw straight-bar rear portion be embedded in notch in it is hinged with pivot pin, according to pincers when hinged
The size of mouth selects the pin hole being suitble on straight-bar.
Further, another structure of the caliper, handle and adjustable pulling claw being hinged is:
The upper back position of caliper and the front end of handle are complementary, and it is hinged by pivot pin to be equipped with corresponding pin hole；The abduction rod head of handle
Complementary with the straight-bar rear portion of adjustable pulling claw, it is hinged by pivot pin that abduction rod head is equipped with corresponding pin hole；According to jaw when hinged
Size selects the pin hole being suitble on straight-bar.
Further, the mounting structure of adjustable top pawl is to be equipped with mounting hole and notch, mounting hole court in caliper front lower portion
Before, notch downward, it is adjustable top pawl rear lug be equipped with screw thread, rear lug be inserted into mounting hole in, above-mentioned nut is mounted in notch simultaneously
It is spun on the screw thread of rear lug, rotating nut is moved forward and backward adjustable top pawl.
Further, it is described hold out against and tense friction plate be by the big material of the coefficient of frictions such as nylon, elastomer, rubber its
Middle one kind is made.
Further, limit plate is equipped on caliper, be moved forward and backward adjustable pulling claw can only by limit plate can not turn over up and down
It is dynamic.
In order to achieve the purpose that show torque, technical solution of the present invention further include: it is aobvious to be equipped with data acquisition in caliper
Show component, the connection pull-up force snesor between arcuation part and straight-bar；The data acquisition display component is the prior art, by
Data acquisition module, battery, display screen electrical connection composition, the signal wire of tension sensor pass through line channel and data acquisition module
The signal input part of block connects；During pulling handle and applying torque to tube, tension sensor transmits electric signal
To data acquisition module, data acquisition module is converted into value of thrust F through data processingL, further according to tension sensor pulling force FLAnd torsion
The functional relation of square M is scaled the torque value of handle application, shows on a display screen, to know the size of torque.
Pulling force F suffered by tension sensor of the present inventionLThe method that acquires with the relationship of torque M is:
It before dispatching from the factory after pipe wrench assembling, is stuck on tube, tube couples upper torque and demarcates machine, and adjusting nut gives one
Fixed starting force clamps tube initially, pulls handle and rotates clockwise and clamps tube, to handle applied force
It is as follows that several groups of corresponding datas are recorded in the process:
Tension sensor pulling force F can be obtained from this several groups of dataLWith the functional relation of torque.
M=f(FN)
FN=f(FL) to obtain, M=f(FL)
By relational expression M=f(FL) write-in data acquisition display component, it is directly calculated and is shown by data acquisition display component.
Application method and working principle of the present invention are the size of pipe wrench mouth to be determined according to tube diameter first, according to pipe
The size of jaw exchanges the suitable pin hole at straight-bar rear portion and handle carries out hingedly；Pipe wrench mouth is stuck on tube, rotating nut
It reaches adjustable top pawl forward on tube to certain starting force, clamps tube initially, it is clockwise when pulling handle
When rotation, with caliper small relative rotation occurs for handle first, and adjustable pulling claw can be pulled to move backward, tube is clamped,
And the bigger clamping force of pull force is bigger, along with the effect of friction pad not will cause skidding, until the torque applied makes tube
Rotation is generated, particular up to degree of tightening.
When needing to apply certain torque, the lossless pipe for being equipped with tension sensor and data acquisition display component is used
Pincers, when display window shows the torque for reaching design requirement, can stop working.
Compared with traditional pipe wrench, since the pipe wrench is to step up tube by frictional force and intensifying force, when applying torque
Guarantee the surface for not damaging tube and not will cause slipping phenomenon, clamps very secured, guarantee tube appearance and installation
Quality.The present invention may also display the size of torque when being equipped with tension sensor, display numerical science, it is accurate, meet pipeline
Technical requirements in engineering.
Detailed description of the invention
Fig. 1 is the main view of embodiment；Fig. 2 is the A-A cross-sectional view of Fig. 1, and caliper, handle and adjustable pulling claw are shown in figure
The structure that is hinged；Fig. 3 is the A-A cross-sectional view of Fig. 1, and the mutual of another caliper, handle and adjustable pulling claw is shown in figure
Articulated structure.
In figure: 1, tube；2, friction plate is held out against；3, adjustable top pawl；4, flat key；5, nut；6, caliper；7, hand
Handle；7.1, abduction rod head；8, pin shaft；9, pin shaft；9.1, pin hole；10, straight-bar；11, data acquire display component；12, pull sensing
Device 13, limit plate；14, housing screw；15, adjustable pulling claw；16, friction plate is tensed.
Specific embodiment
Embodiment one
As shown in Fig. 1 Fig. 2, a kind of lossless pipe wrench is made of caliper 6, handle 7 and adjustable pulling claw 15；It uses 7 front end of handle
Pin shaft 8 is hinged on the upper back position of caliper 6, and the front end of handle 7 is equipped with abduction rod head 7.1 upward；The hinge of caliper 6 and handle 7
Binding structure is that the upper back position of caliper 6 is equipped with caliper notch and pin hole, and the front end of handle 7 is inserted in caliper notch is cut with scissors with pivot pin 9
It connects, as shown in Figure 2；The adjustable pulling claw 15 is the Conjoint packing for wine that a front end is arcuation, rear end is straight-bar, and straight-bar rear portion is set
There is row's pin hole 9.1, it is hinged by any pin hole 9.1 and handle 7；Handle 7 and the articulated structure of adjustable pulling claw 15 be, handle
Abduction rod head 7.1 is equipped with abduction rod notch and pin hole, when hinged root hinged with pivot pin 9 in adjustable 15 straight-bar rear portion of pulling claw insertion notch
The pin hole 9.1 being suitble on straight-bar is selected according to the size of jaw.The front lower position of caliper is equipped with the adjustable top pawl 3 forward extended out, adjustable
Top pawl 3 corresponds to each other to form jaw with the arcuation position of adjustable pulling claw 15；The mounting structure of adjustable top pawl is, in 6 front end of caliper
Lower part be equipped with mounting hole and notch, mounting hole forward, notch downward, it is adjustable top pawl 15 rear lug be equipped with screw thread, rear lug insertion
In mounting hole, above-mentioned nut 5 is mounted in notch and is spun on the screw thread of rear lug, and rotating nut 5 makes to move before and after adjustable top pawl 3
It is dynamic.The front end of the arcuation position inner face of adjustable pulling claw 15 and adjustable top pawl 3 is bonded with mutual corresponding friction plate respectively, that is, tenses
Friction plate 16 and hold out against friction plate 2；When pipe wrench, which is stuck in, pulls handle 7 on tube 1, handle 7 occurs with caliper 6 small first
Relative rotation, abduction rod head 7.1 will pull adjustable pulling claw 15 and moves backward, so that jaw be made to generate intensifying force；After exchanging straight-bar
The size of jaw can be changed to adapt to different calibers in 9.1 articulated position of front and back pin hole in portion.
Further, 2, the tension friction plate 16 that holds out against is the material big by coefficient of frictions such as nylon, elastomer, rubber
One of which is made.
Further, limit plate 13 is equipped on caliper 6, limit plate 13 is fixed on caliper 6 with housing screw 14, passes through limit
Position plate 13, which be moved forward and backward adjustable pulling claw can only, to be stirred up and down.
The application method and working principle of embodiment one are: 1, determining the size of pipe wrench mouth according to 1 diameter of tube first；
2, pin hole 9 on the pin hole position and handle at straight-bar rear portion is exchanged according to the size of pipe wrench mouth to carry out hingedly；3, pipe wrench mouth is stuck in
On tube 1, rotating nut 5 reaches adjustable top pawl 3 forward on tube 1；4, handle 7 is pulled, when rotation pulls simultaneously can
Adjust pulling claw 15 to move backward, to step up tube 1 by frictional force, more pull hold it is tighter, until the torque applied makes tubulose
Object generates rotation, particular up to degree of tightening.
Embodiment two
As shown in Fig. 1 Fig. 2, embodiment two is identical as the basic mechanical structure of embodiment one, and this will not be detailed here, the difference is that real
Torque can be shown by applying example two.
In order to achieve the purpose that show torque, in technical solution further include: be equipped with data in caliper 6 and acquire display group
Part 11 is two components in the arcuation part and straight-bar of adjustable pulling claw 15, between be threadedly coupled pull-up force snesor 12；The number
It is the prior art according to acquisition display component 11, is made of data acquisition module, battery, display screen electrical connection, tension sensor 12
Signal wire connected by the signal input part of line channel and data acquisition module；When applying torque to tube 1, pulling force is passed
Sensor 12 sends electric signal to data acquisition module, and data acquisition module is converted into value of thrust F through data processingL, according to drawing
Force snesor pulling force FLWith the functional relation of torque M, it is scaled the torque value of handle application, is shown on a display screen, to know
The size of road torque.
The application method of embodiment two and working principle are identical with working principle with the application method of embodiment one, herein not
It is described in detail again, unlike, when display window shows the torque for reaching design requirement, can stop working.
Embodiment three
As shown in Fig. 1 Fig. 3, embodiment three is identical as the basic mechanical structure of embodiment one, and this will not be detailed here, the difference is that real
It applies in example three, the structure of the caliper 6, handle 7 and adjustable pulling claw 15 being hinged is: the upper back position of caliper 6 and hand
The front end of handle 7 is complementary, and it is hinged by pivot pin 8 to be equipped with corresponding pin hole；The abduction rod head 7.1 of handle 7 and adjustable pulling claw 15 it is straight
Bar rear portion is complementary, and it is hinged by pivot pin 9 that abduction rod head 7.1 is equipped with corresponding pin hole；It is selected directly when hinged according to the size of jaw
The pin hole 9.1 being suitble on bar.
Application method and working principle are identical as the application method of embodiment one and working principle, and this will not be detailed here.
Example IV
As shown in Fig. 1 Fig. 3, example IV is identical as the basic mechanical structure of embodiment three, and this will not be detailed here, the difference is that implementing
Example four can show torque.Show that technical solution and the embodiment two of torque are identical, application method and working principle and embodiment two
Application method it is identical with working principle, this will not be detailed here.
Claims (9)
1. a kind of lossless pipe wrench, which is characterized in that be made of caliper, handle and adjustable pulling claw；The handle front end pin shaft
It is hinged on the upper back position of caliper, and the front end of handle is equipped with abduction rod head upward；The adjustable pulling claw is that a front end is
Arcuation, the component that rear end is straight-bar, straight-bar rear portion is equipped with row's pin hole, hinged by any pin hole and handle；Before the caliper
Lower portion is equipped with the adjustable top pawl forward extended out, and adjustable top pawl corresponds to each other to form jaw with the arcuation position of adjustable pulling claw；It can
The front end of the arcuation position inner face and adjustable top pawl of adjusting pulling claw is bonded with mutual corresponding friction plate respectively；When pipe wrench is stuck in tubulose
When pulling handle on object, small relative rotation occurs with caliper first for handle, and abduction rod head will pull adjustable pulling claw and move backward,
To make jaw generate intensifying force；The front and back pin hole articulated position at straight-bar rear portion is exchanged, the size of jaw can be changed to adapt to not
Same caliber.
2. lossless pipe wrench as described in claim 1, which is characterized in that data, which are equipped with, also in caliper acquires display component,
Connection pull-up force snesor between arcuation part and straight-bar；The data acquisition display component is the prior art, is acquired by data
Module, battery, display screen electrical connection composition, the signal wire of tension sensor pass through the signal of line channel and data acquisition module
Input terminal connection；When applying torque to tube, tension sensor sends electric signal to data acquisition module, data acquisition module
Block is converted into value of thrust through data processing, and the torque value of handle application is scaled through geometry, shows on a display screen, to know
The size of torque.
3. lossless pipe wrench as claimed in claim 1 or 2, which is characterized in that the caliper, handle and adjustable pulling claw it is mutual
Articulated structure is: the upper back position of caliper is equipped with caliper notch and pin hole, and the front end of handle is inserted in caliper notch and is cut with scissors with pivot pin
It connects；The abduction rod head of handle be equipped with abduction rod notch and pin hole, adjustable pulling claw straight-bar rear portion be embedded in notch in it is hinged with pivot pin, when hinged
The pin hole being suitble on straight-bar is selected according to the size of jaw.
4. lossless pipe wrench as claimed in claim 1 or 2, which is characterized in that the caliper, handle and adjustable pulling claw it is mutual
Hinged another structure is: the upper back position of caliper and the front end of handle are complementary, and it is hinged by pivot pin to be equipped with corresponding pin hole；
The abduction rod head of handle and the straight-bar rear portion of adjustable pulling claw are complementary, and it is hinged by pivot pin that abduction rod head is equipped with corresponding pin hole；Hingedly
When according to the size of jaw select straight-bar on be suitble to pin hole.
5. lossless pipe wrench as described in claim 3 or 4, which is characterized in that the mounting structure of the adjustable top pawl is to clamp
Body front lower portion be equipped with mounting hole and notch, mounting hole forward, notch downward, it is adjustable top pawl rear lug be equipped with screw thread, rear lug
It is inserted into mounting hole, above-mentioned nut is mounted in notch and is spun on the screw thread of rear lug, and rotating nut makes before and after adjustable top pawl
It is mobile.
6. lossless pipe wrench as described in claim 3 or 4, which is characterized in that it is described hold out against and tense friction plate be by nylon,
The big material one of which of the coefficient of frictions such as elastomer, rubber is made.
7. lossless pipe wrench as described in claim 3 or 4, which is characterized in that the caliper is equipped with limit plate, passes through limit
Plate, which be moved forward and backward adjustable pulling claw can only, to be stirred up and down.
8. a kind of working method of lossless pipe wrench as described in claim 1, which is characterized in that determined first according to tube diameter
The size of pipe wrench mouth exchanges the suitable pin hole at straight-bar rear portion according to the size of pipe wrench mouth and handle carries out hingedly；By pipe wrench mouth
It is stuck on tube, rotating nut reaches adjustable top pawl on tube forward；Handle is pulled, handle occurs with caliper micro- first
Small relative rotation can pull adjustable pulling claw to move backward, to step up tube by pulling force and frictional force, more pull hold more
Tightly, until the torque applied makes tube generate rotation, particular up to degree of tightening.
9. a kind of working method of lossless pipe wrench as claimed in claim 2, which is characterized in that including work as claimed in claim 7
Make method；It further include during pulling handle, pulling force sizes values are transmitted to data acquisition display component, data by tension sensor
Acquisition module is converted into value of thrust through data processing, then torque value and the display of handle application are scaled through geometry；Work as display window
When display reaches the torque of design requirement, it can stop working.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910701121.1A CN110340834A (en) | 2019-07-31 | 2019-07-31 | A kind of lossless pipe wrench and application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910701121.1A CN110340834A (en) | 2019-07-31 | 2019-07-31 | A kind of lossless pipe wrench and application method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110340834A true CN110340834A (en) | 2019-10-18 |
Family
ID=68183490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910701121.1A Withdrawn CN110340834A (en) | 2019-07-31 | 2019-07-31 | A kind of lossless pipe wrench and application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110340834A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023155309A1 (en) * | 2022-02-17 | 2023-08-24 | 上海泛华紧固系统有限公司 | Seamless pipe wrench having mechanical constant-torque tightening function and constant-torque tightening operation method therefor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2032926U (en) * | 1988-05-05 | 1989-02-22 | 王福成 | Adjustable self-tighten pipe wrench |
| CN202462302U (en) * | 2012-03-01 | 2012-10-03 | 西南石油大学 | Friction pipe wrench |
| DE102014106269A1 (en) * | 2013-05-20 | 2014-11-20 | Kabo Tool Company | A torque wrench equipped with an adjustment function and its adjustment procedure |
| CN106826638A (en) * | 2015-12-03 | 2017-06-13 | 哈尔滨市三和佳美科技发展有限公司 | Digital display torque spaner |
| CN206316992U (en) * | 2016-12-20 | 2017-07-11 | 张怀柱 | Multi-functional quick-acting pipe tongs |
| CN110026933A (en) * | 2019-03-28 | 2019-07-19 | 威海市力钰实业有限公司 | Quick-acting pipe tongs |
-
2019
- 2019-07-31 CN CN201910701121.1A patent/CN110340834A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2032926U (en) * | 1988-05-05 | 1989-02-22 | 王福成 | Adjustable self-tighten pipe wrench |
| CN202462302U (en) * | 2012-03-01 | 2012-10-03 | 西南石油大学 | Friction pipe wrench |
| DE102014106269A1 (en) * | 2013-05-20 | 2014-11-20 | Kabo Tool Company | A torque wrench equipped with an adjustment function and its adjustment procedure |
| CN106826638A (en) * | 2015-12-03 | 2017-06-13 | 哈尔滨市三和佳美科技发展有限公司 | Digital display torque spaner |
| CN206316992U (en) * | 2016-12-20 | 2017-07-11 | 张怀柱 | Multi-functional quick-acting pipe tongs |
| CN110026933A (en) * | 2019-03-28 | 2019-07-19 | 威海市力钰实业有限公司 | Quick-acting pipe tongs |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023155309A1 (en) * | 2022-02-17 | 2023-08-24 | 上海泛华紧固系统有限公司 | Seamless pipe wrench having mechanical constant-torque tightening function and constant-torque tightening operation method therefor |
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Address after: 266590 No. 579, Bay Road, Huangdao District, Shandong, Qingdao Applicant after: Shandong University of Science and Technology Address before: 271000 Shandong Province, Tai'an city Taishan District mountain Street No. 223 Tai'an campus of Shandong University of Science and Technology Applicant before: Shandong University of Science and Technology |
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| WW01 | Invention patent application withdrawn after publication | ||
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Application publication date: 20191018 |