Wrench

Abstract

The invention discloses a wrench, which comprises a wrench head and a wrench handle. The wrench head is provided with a round through hole, a seal ring is arranged at one end of the round through hole, the seal ring is provided with a cross-shaped slot, and a connecting column is arranged outside the other end of the round through hole and in threaded connection with the wrench handle. The upper surface of the wrench handle is provided with a groove, a rubber bag with a rubber tube is arranged in the groove and connected with the round through hole, a '7'-shaped elastic fastener is arranged above the groove and connected with the wrench handle, and the rubber bag can be extruded by down pressing the elastic fastener. The wrench is convenient for demounting rusted fasteners and convenient in operation, and operating efficiency can be improved. Further, a file is arranged on the lateral side of the wrench handle and can be used for polishing rusts of an opening action portion of the wrench head, so that slipping caused by rusts can be effectively prevented, and work difficulty is lowered.

Description

technical field [0001] The invention relates to a wrench, in particular to a wrench for easy removal of rusted fasteners. Background technique [0002] A wrench is a common tool that uses the principle of leverage to twist screws, screws, nuts and other fasteners. At present, there are various wrenches in circulation on the market, but there is a lack of them that are specially used to deal with some rusted fasteners. The rusted fasteners and the surface of the parts to be used are connected due to the presence of rust spots. It is stronger, and it is difficult to remove it with an ordinary wrench. At this time, it is often necessary to add some lubricant (such as loosening fluid, engine oil, etc.) for lubrication. Since the lubricant is not carried with you, you need to find it when you need it , Reduced work efficiency; In addition, the opening of the wrench head and the active part of the fastener are easy to slip when working because of the rust spots that are produced ...

AI Technical Summary

Problems solved by technology

At present, there are various wrenches in circulation on the market, but there is a lack of them that are specially used to deal with some rusted fasteners. The rusted fasteners and the surface of the parts to be connected are connected due to the presence of rust spots. Stronger, it is difficult to remove it with an ordinary wrench. At this time, it is often necessary to add some lubricant (such as loosening fluid, engine oil, etc.) for lubrication. Since the lubricant is not carried with you, you need to find it when you need it , reducing work efficiency; in addition, due to the existence of rust spots on the opening of the wrench head and the action part of the fastener, it is easy to slip during work, which increases the difficulty of work

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