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Chain saw

A chain saw and saw chain technology, applied in the field of chain saws, can solve problems such as affecting pump oil, high sealing, plugging plungers, etc., and achieve the effect of reducing cost and high reliability

Active Publication Date: 2018-07-13
NANJING CHERVON IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Dust and impurities are easy to enter the oil tank. When the impurities mixed in the oil pass through the plunger, it is easy to block the plunger from the inside, and the dust outside the chain saw is also easy to block the plunger from the outside, affecting the pump oil.
In addition, because the oil passes through the plunger, the plunger needs to have high sealing performance, the processing cost is high, and oil leakage is easy

Method used

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Embodiment Construction

[0030] The present invention will be specifically introduced below in conjunction with the accompanying drawings and specific embodiments.

[0031] Such as Figure 1 to Figure 3 As shown, the chainsaw 100 includes a motor 10 , a saw chain 20 , a housing 30 , an oil tank 40 and an air pump 50 .

[0032] The motor 10 drives the saw chain 20 . The chainsaw 100 also includes a guide bar 21 for guiding and supporting the saw chain 20 .

[0033] The casing 30 houses the motor 10 . The motor 10 is disposed in the casing 30 . The motor 10 can be an internal combustion engine powered by fuel combustion or an electric motor powered by electricity. Specifically, the motor 10 is an electric motor. The chainsaw 100 also includes a battery pack 11 for powering the motor. The battery pack 11 is detachably connected to the casing 30 . The cabinet 30 is formed with a main handle 31 for the user to hold. The chainsaw 100 also includes an auxiliary handle 32 connected to the housing 30 ....

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PUM

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Abstract

The invention discloses a chain saw. The chain saw comprises a saw chain, a motor, a fuel tank and an air pump, wherein the motor is used for driving the saw chain, and an oil storage chamber is formed in the oil tank and is used for storing lubricating oil for lubricating the saw chain; and the air pump is used for enabling the intensity of pressure of the inner part of the oil tank to be greaterthan the intensity of pressure of the outer part of the oil tank so as to enable the lubricating oil in the oil storage chamber to flow to the saw chain under the action of pressure. The chain saw has the advantages that an oil pumping mechanism is reliable and cost is low.

Description

technical field [0001] The present invention relates to a chain saw. Background technique [0002] A chainsaw is a cutting tool used to cut trees. A chainsaw consists of a motor, saw chain and fuel tank. The motor drives the saw chain to cut. The oil tank stores the lubricating oil used to lubricate the saw chain. [0003] When the chain saw is in working condition, an oil pumping mechanism is needed to pump the oil in the oil tank to the saw chain. [0004] The traditional oil pumping mechanism is a plunger-type oil pumping mechanism. The rotation of the motor drives the plunger to reciprocate to pump oil. The oil flows through the oil pumping mechanism and is discharged, and the gas enters the fuel tank through the opening on the fuel tank cover. The pressure inside and outside the tank. Dust and impurities are easy to enter the oil tank. When the impurities mixed in the oil pass through the plunger, it is easy to block the plunger from the inside, and the dust outsid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27B17/00B27B17/12A01G3/08A01G23/091
CPCA01G3/086A01G23/091B27B17/00B27B17/12
Inventor 聂方杰邓方天付慧星
Owner NANJING CHERVON IND