Oil gun

Abstract

An oil gun, which contains gun body including upper and lower section, the upper is the joint injection rod with nozzle in head, oil filled piston cylinder in middle section with piston and reset spring, the lower section is connection cover connected with oil tank having suction pipe, screw plug set in open of oil filled cylinder, stop ring, seal ring for preventing the oil from leakage when the manual wrench turns to press the piston making oil to bottom of piston cylinder.

Description

technical field [0001] The invention relates to an oil gun, which is used for lubricating and oiling machine equipment. Background technique [0002] During the operation of machinery and equipment, due to the wear and tear of the machine, it needs to be lubricated with oil, and the oil gun is used to add lubricating oil. There are many kinds of oil guns, but existing oil guns such as Chinese patent CN2064002U have the following defects in structure: the one is that the oil injection piston cylinder opening is in the opposite direction of the spray bar nozzle, or although the oil injection piston cylinder opening is in the same direction as the spray bar nozzle In the same direction, such as U.S. Patent US1979014, but the structure of the bottom of the piston cylinder and the seal of the oil-filled piston rod is simple, and there is oil leakage; the second is that the connection between the spray rod and the gun body lacks sealing and locking, which not only leaks, but also ...

AI Technical Summary

Problems solved by technology

There are many kinds of oil guns, but existing oil guns such as Chinese patent CN2064002U have the following defects in structure: the one is that the oil injection piston cylinder opening is in the opposite direction of the spray bar nozzle, or although the oil injection piston cylinder opening is in the same direction as the spray bar nozzle In the same direction, such as U.S. Patent US1979014, but the structure of the bottom of the piston cylinder and the seal of the oil-filled piston rod is simple, and there is oil leakage; the second is that the connection between the spray rod and the gun body lacks sealing and locking, which not only leaks, but also easily leaks. The breakage will affect the service life; the third is that there is no control structure between the nozzle and the spray rod, and there will be oil dripping after oil injection, causing waste and pollution; the fourth is that there is no valve control in the suction hole, which will cause oil leakage

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