Embodiments include a bar for a chain saw that is equipped with one or more oil channels that run along the length of the bar. Each oil channel receives oil at a first end, which exits the oil channel at an oil exit aperture at a second end of the channel. The oil exit aperture of one of the channels is positioned along the side of a bar groove, through which runs the saw chain, proximate to the cutting area of the bar to lubricate the saw chain just prior to the cutting area. A second channel may have an oil exit aperture proximate to the nose of the bar, to lubricate a sprocket wheel in the nose of the bar.

A power tool includes a housing, a driving device, a cutting device and an oil storage device. The driving device, the cutting device and the oil storage device are all mounted in the housing. The driving device may drive the cutting device to work, and the oil storage device provides lubricating oil to the cutting device. The oil storage device includes an oil reservoir and an oil pump, the oil reservoir is connected with the oil pump through a first oil pipe, and a filtering structure is arranged between the first oil pipe and the oil reservoir to filter the lubricating oil entering the oil pump from the oil reservoir. The oil reservoir provides lubricating oil to the cutting device through the oil pump. The oil storage device of the disclosure may effectively improve a clogging problem of the oil pump and improve a duration life of the power tool.

A power tool includes a housing, a driving device, a cutting device and an oil storage device. The driving device, the cutting device and the oil storage device are all mounted in the housing. The driving device may drive the cutting device to work, and the oil storage device provides lubricating oil to the cutting device. The oil storage device includes an oil reservoir and an oil pump, the oil reservoir is connected with the oil pump through a first oil pipe, and a filtering structure is arranged between the first oil pipe and the oil reservoir to filter the lubricating oil entering the oil pump from the oil reservoir. The oil reservoir provides lubricating oil to the cutting device through the oil pump. The oil storage device of the disclosure may effectively improve a clogging problem of the oil pump and improve a duration life of the power tool.

A power tool includes an output assembly, a first motor, a housing, and a liquid pump assembly, where the output assembly implements an operation, the first motor is used for driving the output assembly to operate, the housing is formed with a grip for a user to hold, the liquid pump assembly includes a liquid pump and a second motor for driving the liquid pump to operate, the liquid pump assembly is at least partially disposed within the grip, and a total length of the power tool is greater than or equal to 20 cm and less than or equal to 150 cm.

A power tool includes an output assembly, a first motor, a housing, and a liquid pump assembly, where the output assembly implements an operation, the first motor is used for driving the output assembly to operate, the housing is formed with a grip for a user to hold, the liquid pump assembly includes a liquid pump and a second motor for driving the liquid pump to operate, the liquid pump assembly is at least partially disposed within the grip, and a total length of the power tool is greater than or equal to 20 cm and less than or equal to 150 cm.

Disclosed is an electric saw guide plate capable of recycling lubricating oil, comprising two outer guide plates and an oil guide plate connected between the two outer guide plates; outer edges of inner walls of the outer guide plates and a periphery of the oil guide plate form a guide plate groove for containing a saw chain, a plurality of oil inlets are formed in an upper end of the oil guide plate and a plurality of oil outlets are formed in a lower end of the oil guide plate, the oil inlets and the oil outlets are communicated through an oil guide channel, and the oil inlets and the oil outlets are communicated with the guide plate groove at the same time. According to the electric saw guide plate, the saw chain is lubricated, and meanwhile the recycling of the lubricating oil is also realized.

Disclosed is an electric saw guide plate capable of recycling lubricating oil, comprising two outer guide plates and an oil guide plate connected between the two outer guide plates; outer edges of inner walls of the outer guide plates and a periphery of the oil guide plate form a guide plate groove for containing a saw chain, a plurality of oil inlets are formed in an upper end of the oil guide plate and a plurality of oil outlets are formed in a lower end of the oil guide plate, the oil inlets and the oil outlets are communicated through an oil guide channel, and the oil inlets and the oil outlets are communicated with the guide plate groove at the same time. According to the electric saw guide plate, the saw chain is lubricated, and meanwhile the recycling of the lubricating oil is also realized.

An outdoor tool includes a powerhead, a tool unit powered by the powerhead, and a shaft assembly extending between the powerhead and the tool unit. The tool unit includes a transmission housing, a support plate, a guide bar adjustably supported by the support plate, a drive gear, and a chain circumscribing a portion of the drive gear and a portion of the guide bar, the drive gear operatively coupled to the powerhead. The tool unit further includes a tension adjustment mechanism for adjusting a position of the guide bar relative to the drive gear to increase and decrease a tension in the chain. The tension adjustment mechanism includes an adjustment screw, a threaded adjustment bolt, at least one adjustment gear, and a member coupled to the adjustment bolt and the guide bar. Rotation of the adjustment screw causes translation of the guide bar relative to the drive gear.

Disclosed is an electric saw guide plate capable of recycling lubricating oil, comprising two outer guide plates and an oil guide plate connected between the two outer guide plates; outer edges of inner walls of the outer guide plates and a periphery of the oil guide plate form a guide plate groove for containing a saw chain, a plurality of oil inlets are formed in an upper end of the oil guide plate and a plurality of oil outlets are formed in a lower end of the oil guide plate, the oil inlets and the oil outlets are communicated through an oil guide channel, and the oil inlets and the oil outlets are communicated with the guide plate groove at the same time. According to the electric saw guide plate, the saw chain is lubricated, and meanwhile the recycling of the lubricating oil is also realized.

Disclosed is an electric saw guide plate capable of recycling lubricating oil, comprising two outer guide plates and an oil guide plate connected between the two outer guide plates; outer edges of inner walls of the outer guide plates and a periphery of the oil guide plate form a guide plate groove for containing a saw chain, a plurality of oil inlets are formed in an upper end of the oil guide plate and a plurality of oil outlets are formed in a lower end of the oil guide plate, the oil inlets and the oil outlets are communicated through an oil guide channel, and the oil inlets and the oil outlets are communicated with the guide plate groove at the same time. According to the electric saw guide plate, the saw chain is lubricated, and meanwhile the recycling of the lubricating oil is also realized.