Transmission extension rod for power tool
A technology of power tools and extension rods, applied in the field of transmission extension rods, can solve the problems of inability to further extend the working distance, low work efficiency, reduced work efficiency, etc., so as to improve work efficiency and quality, increase operating comfort, and increase working range. Effect
Inactive Publication Date: 2009-08-26
MOBILETRON ELECTRONICS
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Problems solved by technology
This situation causes the user to work in a posture that cannot stably hold the power tool, resulting in a decrease in work efficiency
When the distance that the screwdriver bit must penetrate is too long or the space is too narrow, the user cannot even let the screwdriver bit reach the working point to lock the screw, making the power tool unusable, so the operator must use traditional hand tools at a lower cost Working efficiency The screws of the locking part, on the one hand, under the operating condition of being locked on the floor downwards, the operator is prone to fatigue and reduces work efficiency when bending and squatting for a long time.
[0005] In the known technology, working heads such as screwdriver bits and drill bits are directly fixed on the power tool, and the working distance cannot be further extended, which causes inconvenience in some work
Method used
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[0099] Please refer to figure 1 and figure 2 As shown, a transmission extension rod for a power tool disclosed in an embodiment of the present invention is used to connect a main clamp 210 of a power tool 200 and a working head 300, and the working head 300 can be a bit or a drill. In this embodiment, the working head 300 is a screw head, so an automatic feeder 400 is further provided at the front end of the transmission extension rod to feed the screw to the working head 300 . The transmission extension rod includes a rear cover set 110 , a shaft sleeve 120 , a multidirectional positioning device 130 , a transmission shaft 140 , a front cover set 150 , and an auxiliary fixture 160 .
[0100] see again figure 1 As shown, the main clamp 210 is arranged at the front section of the power tool 200, and is connected to a power source (not shown) inside the power tool through a gear set. The power source can be an electric motor or a pneumatic turbine, which can output high powe...
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The invention relates to a transmission extension rod for a power tool. The transmission extension rod for a power tool is used for connecting a main clamp and a working head of the power tool, and comprises an outer sleeve, a shaft bush, a transmission shaft, a front protecting cover set and a multi-way positioning device, wherein the outer sleeve is used for combining with the power tool, and the main clamp is positioned in the outer sleeve, and a plurality of through holes which are accommodated with a positioning component respectively are formed on the outer peripheral surface of the outer sleeve; one end of the shaft bush is rotatably connected to the outer sleeve, and at least one positioning hole is formed on the outer peripheral surface of the shaft bush; the transmission shaft is inserted in the shaft bush, and one end of the transmission shaft is connected to the main clamp, while the other end is connected to an auxiliary clamp so as to ensure that the auxiliary clamp clamps the working head to rotate; the front protecting cover set is used for fixing an automatic feeding device at the front end of the shaft bush, and the automatic feeding device can be rotated along the shaft bush; and the multi-way positioning device is used for pressing positioning components so as to ensure that the positioning components are fixedly embedded in the positioning holes to lock the shaft bush.
Description
technical field [0001] The present invention relates to a power tool, in particular to a transmission extension rod that can extend the length of the power tool and adjust the axial angle according to requirements. Background technique [0002] Hand-held power tools are used to generate power to drive working heads such as screwdriver bits and drill bits to rotate for work. Generally speaking, a hand-held power tool is powered by an electric motor or an air turbine, and drives a fixture to rotate after reducing the original rotational speed and amplifying the torque through a transmission gear. The working head is clamped by the fixture and rotates with the fixture. Compared with manual tools, power tools can produce high-speed and high-torque output to improve work efficiency. At the same time, when it is necessary to control the tightening torque, for example, when the screw must be locked with a specific torque by the screwdriver head, the power tool can also set the ou...
Claims
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IPC IPC(8): B25F5/00
Inventor 徐铭鸿
Owner MOBILETRON ELECTRONICS