CN210757420U - Special chain wrench - Google Patents
Special chain wrench Download PDFInfo
- Publication number
- CN210757420U CN210757420U CN201921766067.0U CN201921766067U CN210757420U CN 210757420 U CN210757420 U CN 210757420U CN 201921766067 U CN201921766067 U CN 201921766067U CN 210757420 U CN210757420 U CN 210757420U
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- CN
- China
- Prior art keywords
- handle
- chain
- hole
- backing plate
- special
- 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
A special chain wrench comprises a chain and a handle, wherein the handle is a hollow round pipe with two open ends, a connecting plate is welded on one side of the upper part of the handle, one end of the chain is hinged with the connecting plate, teeth with the lower ends extending into the handle are arranged in the upper part of the handle, holes are arranged on the lower part of a backing plate, the handle at the corresponding position is provided with an assembly hole, a screw passes through the assembly hole and the hole, the backing plate is fixed on the handle through a nut, the other side of the handle is provided with a chain hole with a small upper part and a big lower part, used for the in and out and locking of the chain, the utility model has simple structure, low production cost and convenient operation, utilizes the chain structure characteristics of the chain, can lock screws with various specifications and shapes to finish the assembly and disassembly work of various screw threads, and the handle is a hollow circular tube, when in site construction, the steel pipe can be matched with the handle to be sleeved in the handle to be used as a stress application rod, so that the labor and time are saved, and the steel pipe reinforced concrete pole has good social and economic benefits.
Description
Technical Field
The utility model relates to a spanner technical field, especially a special chain spanner.
Background
In the fire engineering construction, often have the screw of many specifications, for example eight mechanical tee joints, the screw external diameter of some major models can reach 100mm, during current construction, most workman can screw up with the breakout tongs, but it is harder to screw up with the breakout tongs, it is very not good to use, current chain tongs is very heavy again, hardly nobody uses, current chain spanner, the chain expansion end stretches into in the cover pipe, during the use, need fold back and hold with the hand with the chain that goes out along the mouth of pipe wall, it is very inconvenient to use, and in the screwing up process, be injured easily, consequently, need further innovation and improvement to current chain spanner's design.
SUMMERY OF THE UTILITY MODEL
In view of the above situation, in order to overcome the drawbacks of the prior art, an object of the present invention is to provide a special chain wrench, which can effectively solve the problems of heavy wrench and inconvenient use.
In order to achieve the purpose, the technical scheme of the utility model is, a special chain spanner, including chain and handle, the handle is both ends open-ended hollow pipe, and the welding of handle upper portion one side has the connecting plate, and chain one end is together articulated with the connecting plate, is equipped with the tooth that the lower extreme stretched into the handle in the handle upper portion, and the backing plate lower part is opened porosely, and it has the pilot hole to open on the handle that corresponds the position, and the screw passes pilot hole and hole, fixes the backing plate on the handle through the nut, and the handle opposite side is opened has big end down's chain hole for business turn over and locking of chain.
The utility model discloses simple structure, low in production cost, convenient operation utilizes the chain structure characteristics of chain itself, can lock multiple specification, and the screw of multiple shape accomplishes the dress of various screw threads, tears the work open, and the handle is hollow pipe, and when site operation, can cooperate the steel pipe to telescope in the handle, as the power application pole, labour saving and time saving has good society and economic benefits.
Drawings
Fig. 1 is a structural view of the present invention.
Fig. 2 is a side view of the handle of the present invention.
Fig. 3 is a side view of the handle for upward movement of the chain in the present invention.
Fig. 4 is a structural view of the cushion plate of the present invention.
Fig. 5 is another structure view of the mat according to the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
The special chain wrench is provided by combining the attached drawing and comprises a chain and a handle, wherein the handle 1 is a hollow round pipe with two open ends, one side of the upper part of the handle 1 is welded with a connecting plate 1-1, one end of the chain 2 is hinged with the connecting plate 1-1, a backing plate 3 with the lower end extending into the handle 1 is arranged in the upper part of the handle 1, the lower part of the backing plate 3 is provided with a hole 3-1, the handle 1 at the corresponding position is provided with an assembly hole, a screw 5 penetrates through the assembly hole and the hole 3-1, the backing plate 3 is fixed on the handle through a nut, and the other side of the handle 1 is provided with a chain hole 4 with a small top and.
In order to ensure better implementation effect, the chain hole 4 is a stepped square hole formed by concentric upper narrow square holes and lower wide square holes, the upper narrow hole side is a chain clamping side, and the upper chain 2 is clamped in the upper narrow hole and used for fixing and locking the chain 2.
The upper end surface of the backing plate 3 is a plane or is evenly distributed with teeth 3-2.
The handle 1 is a hollow round tube made of DN40 galvanized steel.
The utility model discloses at specific during operation, specification according to the part is different, artifical encircle the chain behind whole part, the expansion end of chain stretches into in the handle through chain hole lower part macropore on the handle, the handle draws down, the screw is advanced to the cover, then make the chain put into upper portion slot (aperture) interior jam chain, unnecessary chain deposit is in the handle, can be under construction according to conventional spanner, the backing plate is equipped with above the handle, part according to the different grade type, optionally have the backing plate or the planar backing plate of tooth, the backing plate multiplicable with the frictional force of part that has the tooth, planar backing plate can reduce the wearing and tearing to the part surface, if the user carries out the application of force, when dismantling and screwing more difficulty, can stretch into on-the-spot steel pipe with the handle in, the length of increase handle, it is more laborsaving during the use.
The utility model discloses simple structure, low in production cost, convenient operation utilizes the chain structure characteristics of chain itself, can lock multiple specification, and the screw of multiple shape accomplishes the dress of various screw threads, tears the work open, and the chain is through chain hole locking, and is fixed more firm, should not the slippage, and the handle is hollow pipe, and when site operation, can cooperate the steel pipe to telescope in the handle, as the power application pole, labour saving and time saving has improved work efficiency, has good society and economic benefits.
Claims (4)
1. The utility model provides a special chain spanner, including chain and handle, a serial communication port, handle (1) is both ends open-ended hollow pipe, handle (1) upper portion one side welding has connecting plate (1-1), chain (2) one end is together articulated with connecting plate (1-1), backing plate (3) that the lower extreme stretched into handle (1) are equipped with in handle (1) upper portion, porose (3-1) are opened to backing plate (3) lower part, it has the pilot hole to open on handle (1) of corresponding position, screw (5) pass pilot hole and hole (3-1), fix backing plate (3) on the handle through the nut, handle (1) opposite side is opened has big-end-up's chain hole (4) for the business turn over and the locking of chain (2).
2. The special chain wrench as claimed in claim 1, wherein the chain hole (4) is a stepped square hole formed by an upper narrow square hole and a lower wide square hole concentrically, the upper narrow hole side is a chain clamping side, and the upper chain (2) is clamped in the upper narrow hole for fixedly locking the chain (2).
3. The special chain wrench as claimed in claim 1, wherein the backing plate (3) is provided with teeth (3-2) on the upper end surface plane or uniformly distributed.
4. Special chain wrench according to claim 1, characterized in that the handle (1) is a hollow round tube made of DN40 zinc plating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921766067.0U CN210757420U (en) | 2019-10-21 | 2019-10-21 | Special chain wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921766067.0U CN210757420U (en) | 2019-10-21 | 2019-10-21 | Special chain wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210757420U true CN210757420U (en) | 2020-06-16 |
Family
ID=71064367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921766067.0U Expired - Fee Related CN210757420U (en) | 2019-10-21 | 2019-10-21 | Special chain wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210757420U (en) |
-
2019
- 2019-10-21 CN CN201921766067.0U patent/CN210757420U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200616 Termination date: 20201021 |