chain saw

Abstract

A chainsaw, comprising a housing, a motor, a saw chain, a gear box installed in the housing, a transmission mechanism driven by the motor and housed in the gear box to drive the movement of the saw chain, a guide plate for guiding and supporting the saw chain, The cover plate and the switch matched with the housing, the chain saw also includes an oil supply system, the oil supply system includes an oil pot, an oil feed pipe connected to the oil pot and used for supplying oil to the saw chain The oil pump assembly, the gear box includes a gear box body and a gear box cover installed on the gear box body, the oil pump assembly is arranged in the gear box body, and the joint between the gear box body and the gear box cover is sealed by a sealing ring, Therefore, the waste and environmental pollution caused by the leakage of the lubricating oil of the chainsaw to the outside of the host machine can be prevented, the stability and reliability of the entire pump oil system can be improved, and many inconveniences caused by oil leakage to users can be solved.

Description

technical field [0001] The invention relates to a garden electric tool, in particular to a chain saw. Background technique [0002] As a garden electric tool, chain saws are widely used in households, gardens and other fields. The working principle of the chain saw is to drive the transmission mechanism through the power device, and the saw chain is driven by the transmission mechanism to cut. During operation, a large amount of heat is generated due to friction between the saw chain and other components, and timely lubrication is required to prevent the saw chain from being damaged due to rapid heating. Therefore, an oil supply system is often provided in the chainsaw casing, including an oil tank for storing lubricating oil and an oil pump connected to the oil tank. Lubricant is supplied to lubricate the chain. [0003] The oil pump in the above-mentioned oil supply system is the core component, and the oil leakage prevention problem of the oil pump body is the key to t...

AI Technical Summary

Problems solved by technology

[0003] The oil pump in the above-mentioned oil supply system is the core component, and the oil leakage prevention problem of the oil pump body is the key to the stability of the oil supply system of chain saw products. There will be oil leakage, which will lead to problems such as poor machine lubrication, waste of resources, and environmental pollution.

[0004] In addition, because the user usually puts it for a period of time after filling up the engine oil and continues to use it for a period of time, the machine often has oil stored in the oil pot during the placement process. Leakage out of the machine will also cause waste of resources, environmental pollution, and affect the cleanliness of the machine during use

In the existing chain saw products, a bolt is used to press the oil outlet pipe to cut off the oil passage, and there are generally two methods for adjusting the screw: one is to use external tools to adjust, this method is relatively primitive, and other tools are needed for adjustment. Tools, very inconvenient; the other is to adjust by adjusting the accessories, without the need for other external tools, such as setting the adjustment knob on the top of the bolt for adjustment

However, using the above methods requires additional operations by the user, which is not convenient and fast enough to use. In addition, if the user forgets to tighten the bolt, the problem of oil leakage will also occur.

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