Electric hand drill with drill bit cooling function

A hand electric drill and drill bit technology, used in drilling/drilling equipment, manufacturing tools, portable drilling rigs, etc., can solve the problems of large impact on the life of the drill bit and poor cooling effect of the drill bit, so as to ensure the effective working depth and reduce the vibration sense. , the effect of improving the comfort of use
CN110153471AInactive Publication Date: 2019-08-23้™ˆ็ƒ
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
้™ˆ็ƒ
Publication Date
2019-08-23
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention discloses an electric hand drill with a drill bit cooling function. The electric hand drill comprises a bottom cover. A battery is installed on the lower end face of the bottom cover. Abattery limiting plate is installed above the battery. A switch is installed above the battery limiting plate. A reverse rotation button is installed on the front end face of the switch. A shell is installed outside the switch. Cooling openings are formed in the front end face of the shell. A connection box is installed inside the cooling openings. A water tank is installed at one end of the connection box, and a motor shaft is installed at the other end of the connection box. A motor is installed outside the motor shaft. A buffer cushion is installed outside the motor. According to the electric hand drill, by arranging circulating water flow and blades outside a drill bit to conduct cooling, it is ensured that the temperature of the drill bit cannot be too high, and the temperature of water is controlled by the blades to a certain extent; and by additionally arranging the buffer cushion, the vibration feeling caused to the whole electric hand drill when the motor works is reduced, andthe use comfort degree is increased.
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Description

technical field

[0001] The invention relates to the technical field of electric hand drills, in particular to an electric hand drill with a drill bit cooling function. Background technique

[0002] With the rapid development of social economy, electric hand drills are often used in daily life. Electric hand drills are drilling tools powered by AC power or DC batteries. The product with the largest sales volume is widely used in construction, decoration and furniture industries. At present, the performance of hand drills is getting better and better. but,

[0003] The cooling effect of the existing electric drill is not good for the drill bit, and the water spray has a great influence on the life of the drill bit; In the technology, there are some electric hand drills that use water cooling to cool the drill bit: CN203197313U, CN202506871U, but the water cooling pipe can only be attached to the electric drill display, and cannot perform effective three-dimensional heat exch...

Claims

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