CN202377961U - Chain tongs - Google Patents
Chain tongs Download PDFInfo
- Publication number
- CN202377961U CN202377961U CN2011204837341U CN201120483734U CN202377961U CN 202377961 U CN202377961 U CN 202377961U CN 2011204837341 U CN2011204837341 U CN 2011204837341U CN 201120483734 U CN201120483734 U CN 201120483734U CN 202377961 U CN202377961 U CN 202377961U
- Authority
- CN
- China
- Prior art keywords
- chain
- tommy bar
- link
- pull rod
- hole
- 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 discloses chain tongs. The chain tongs comprise a pull rod handle and a chain, wherein the top end of the pull rod handle is provided with a pull rod hook; one end of the chain is hinged on one side of the pull rod handle, and the other end of the chain is buckled with a hook head of the pull rod hook through spaces among chain units; the inner chain units and the outer chain units of the chain are formed by continuously hinging pin shafts which are arranged in the same direction; one end or both ends of the pin shafts exposed from the outer chain units are provided with through holes; and metal elastic cords pass through the through holes. The chain tongs solve the problem in the prior art, and steel wire cords pass through the pin shafts of the chain, so that the chain tongs are simple in structure, can be conveniently and rapidly used and can obviously improve the working efficiency.
Description
Technical field
The utility model relates to a kind of hand-held tool, is specifically related to a kind of chain-type pipe wrench.
Background technology
The chain-type pipe wrench is pulled scope because of folder becomes current indispensable instrument greatly, and particularly application is wider in the Petro-Chemical Machinery field, and the chain of using on the various now roll grip pipe wrenches is traditional roller chain or leaf chain; Because these chain operation principles and structure will adapt to the transmission requirement, must center on polygonal sprocket rotation, thereby each chain link of chain requires all can freely rotate as hinge; So the chain of a plurality of chain links only could form vertical bar when deadweight is vertical; Otherwise the shape of the unordered rotation of each chain link is disorderly and unsystematic, is difficult to control, so when clamping plate are tied workpiece; Often not obedient, influenced the application of this kind tool.
The utility model content
The purpose of utility model: the utility model purpose provides the chain-type pipe wrench of the quick clamping of a kind of ability simple in structure, easy to use in order to solve the deficiency of existing chain-type pipe wrench.
Technical scheme: for achieving the above object, the utility model adopts following technical scheme:
A kind of chain-type pipe wrench; Comprise tommy bar handle and chain, the top of said tommy bar handle is provided with the tommy bar hook, and an end of said chain is hinged on a side of tommy bar handle; The other end of chain fastens through the spacing of chain internode and the gib head of tommy bar hook; The inner link of said chain and outer link be through the bearing pin arranged in the same way hinged forming continuously, exposes at bearing pin on the wherein one or both ends of outer link to be provided with through hole, is installed with the metallic elastic cotton rope in the through hole.
As optimization, inner link on the said chain and outer link are wherein a kind of of roller chain chain link, leaf chain chain link
As optimization, be installed with one or multiply metallic elastic cotton rope in the said through hole.
Teeth on the said tommy bar hook are circular arc or straight line distributes.
The utility model is on the basis of known chain-type pipe vice structure; Connect the dozens of chain section in the same way by bearing pin with aperture; Rubber-like metal wire exposes series connection one by one the hole of chain sheet from bearing pin; Thereby chain had both had flexible instinct, again the circle shape of formation rule under the effect of elasticity cotton rope.Through very easily the chain circle being become big by external force or dwindling, chain is in the clamping duty through the spacing of chain internode and the gib head fastening meter pipe vice of tommy bar hook.
Beneficial effect:, the utlity model has following advantage with respect to prior art:
Bearing pin with holes and chain sheet clearance hinge, the elasticity cotton rope is the company of wearing from the hole one by one, makes the chain link of unordered rotation originally receive the constraint of elasticity cotton rope to become required form; Therefore can extremely make things convenient for and tie the folder workpiece rapidly, and in the effect lower chain of the power of the pulling shape along with workpiece it clamped, the elasticity cotton rope is also with its distortion; When work finishes, each chain link of chain restores with the elastic force of elasticity cotton rope again, and the utility model is simple in structure; Convenient to use, can significantly improve operating efficiency.
Description of drawings
Accompanying drawing is the structural representation of the utility model,
1 is the tommy bar handle among the figure, and 2 is the tommy bar hook, and 3 is chain, and 4 is the elasticity cotton rope.
The specific embodiment
Embodiment 1:
A kind of chain-type pipe wrench as shown in the figure; Comprise tommy bar handle 1 and chain 3, the top of tommy bar handle 1 is provided with tommy bar hook 2, and an end of said chain 3 is hinged on a side of tommy bar handle 1; The other end of chain 3 fastens through the spacing of chain internode and the gib head of tommy bar hook 2; The inner link of chain 3 and outer link be through the bearing pin arranged in the same way hinged forming continuously, wherein is provided with through hole on the end what bearing pin exposed outer link, is installed with teeth on the metallic elastic cotton rope 4 tommy bar hooks 2 in the through hole and is circular arc and distributes; Inner link on the chain 3 and outer link are the roller chain chain link, are installed with one metallic elastic cotton rope in the through hole.The utility model is simple in structure, and is convenient to use, can significantly improve operating efficiency.
Embodiment 2:
A kind of chain-type pipe wrench as shown in the figure; Comprise tommy bar handle 1 and chain 3, the top of tommy bar handle 1 is provided with tommy bar hook 2, and an end of said chain 3 is hinged on a side of tommy bar handle 1; The other end of chain 3 fastens through the spacing of chain internode and the gib head of tommy bar hook 2; The inner link of chain 3 and outer link be through the bearing pin arranged in the same way hinged forming continuously, exposes at bearing pin on the two ends of outer link to be equipped with through hole, and the teeth that are installed with in the through hole on the metallic elastic cotton rope 1 tommy bar hook 2 linearly distribute; Inner link on the chain 3 and outer link are the leaf chain chain link, are installed with two money paid for shares in the through hole and belong to the elasticity cotton rope.The utility model is simple in structure, and is convenient to use, can significantly improve operating efficiency.
Claims (3)
1. chain-type pipe wrench; Comprise tommy bar handle and chain, it is characterized in that: the top of said tommy bar handle is provided with the tommy bar hook, and an end of said chain is hinged on a side of tommy bar handle; The other end of chain fastens through the spacing of chain internode and the gib head of tommy bar hook; The inner link of said chain and outer link be through the bearing pin arranged in the same way hinged forming continuously, exposes at bearing pin on the wherein one or both ends of outer link to be provided with through hole, is installed with the metallic elastic cotton rope in the through hole.
2. a kind of chain-type pipe wrench according to claim 1 is characterized in that: inner link on the said chain and outer link are wherein a kind of of roller chain chain link, leaf chain chain link.
3. a kind of chain-type pipe wrench according to claim 1 is characterized in that: be installed with one or multiply metallic elastic cotton rope in the said through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204837341U CN202377961U (en) | 2011-11-29 | 2011-11-29 | Chain tongs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204837341U CN202377961U (en) | 2011-11-29 | 2011-11-29 | Chain tongs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202377961U true CN202377961U (en) | 2012-08-15 |
Family
ID=46626481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204837341U Expired - Fee Related CN202377961U (en) | 2011-11-29 | 2011-11-29 | Chain tongs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202377961U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104097157A (en) * | 2014-07-17 | 2014-10-15 | 福建省南平市延平区迈玄机械设计有限公司 | Flexible drill rod tongs |
| CN108858003A (en) * | 2018-08-14 | 2018-11-23 | 安徽信息工程学院 | Spanner |
| CN116021460A (en) * | 2023-02-17 | 2023-04-28 | 山西建筑工程集团有限公司 | Electric pipe wrench for steel pipe threaded connection installation |
-
2011
- 2011-11-29 CN CN2011204837341U patent/CN202377961U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104097157A (en) * | 2014-07-17 | 2014-10-15 | 福建省南平市延平区迈玄机械设计有限公司 | Flexible drill rod tongs |
| CN104097157B (en) * | 2014-07-17 | 2016-06-15 | 福建省南平市延平区迈玄机械设计有限公司 | flexible free pliers |
| CN108858003A (en) * | 2018-08-14 | 2018-11-23 | 安徽信息工程学院 | Spanner |
| CN116021460A (en) * | 2023-02-17 | 2023-04-28 | 山西建筑工程集团有限公司 | Electric pipe wrench for steel pipe threaded connection installation |
| CN116021460B (en) * | 2023-02-17 | 2023-05-30 | 山西建筑工程集团有限公司 | Electric pipe wrench for steel pipe threaded connection installation |
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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: 20120815 Termination date: 20141129 |
|
| EXPY | Termination of patent right or utility model |