Chain spanner
A technology of chain and wrench, which is applied in the field of chain wrench, which can solve problems such as pipeline leakage, affecting the normal use of pipelines, and pipeline rupture.
Inactive Publication Date: 2013-04-24
SHANDONG DAYE
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Problems solved by technology
If the installation is not firm, it will cause the pipeline to leak or even burst.
Method used
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[0009] Such as figure 1 As shown, the present invention is provided with a hook 2 at one end of the handle 1, and a fastening chain 3 is connected to the inside of the hook 2. Through the above settings, the present invention is used for the installation and disassembly of plastic pipes or valves. During use, the fastening chain 3 is wound on the plastic pipe or valve, and after tensioning, the hook 2 is hung on the fastening chain 3, and the handle 1 is turned. It can flexibly rotate plastic pipes or valves without causing damage to plastic pipes or valves.
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The invention discloses a chain spanner which is characterized in that a hook is arranged at one end of a handle, and the inside of the hook is connected to a fastening chain. The chain spanner is used for installation and removal of plastic pipes or valves, the length of the fastening chain can be flexibly regulated according to sizes of the valves to be installed or removed, and damages on plastic pipes and the valves can be avoided.
Description
technical field [0001] The invention relates to a hardware tool, in particular to a chain wrench. Background technique [0002] When installing plastic pipes, it is inevitable to install valves and joints. If the installation is not firm, it will cause the pipeline to leak or even burst. Simultaneously, because general plastic material is brittle, rigidity is little, when installing or dismantling valve, if use common wrench can cause pipeline rupture, influence the normal use of pipeline. Contents of the invention [0003] The object of the present invention is to provide a chain wrench which can complete the installation and disassembly of plastic pipes or valves. [0004] In order to achieve the above object, the present invention is provided with a hook at one end of the handle, and a fastening chain is connected to the inner side of the hook. [0005] Through the above settings, the present invention is used for the installation and disassembly of plastic pipes...
Claims
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IPC IPC(8): B25B13/52
Inventor 窦勇王金武李文军
Owner SHANDONG DAYE