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Chuck used for speed-changing electric drill

A chuck and electric drill technology, which is applied in the direction of chucks, tool joints, portable drilling rigs, etc., can solve the problems of operator injury, clamping claws clamping is not firm enough, clamping claws are loose, etc., and achieve the effect of improving the use efficiency

Inactive Publication Date: 2014-12-10
刘影
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the use of variable-speed electric drills, because the chuck is tightened by hand, the clamping claws are not firmly clamped. Due to the change in speed, it is easy to cause the clamping claws on the electric drill chuck to loosen, which affects the working efficiency of the electric drill and easily causes damage to the operation. injury

Method used

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  • Chuck used for speed-changing electric drill
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Embodiment Construction

[0014] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0015] The invention provides a chuck for a variable-speed electric drill that can be tightened very firmly.

[0016] like figure 1 , figure 2 As shown, the chuck 1 for a variable speed electric drill includes a connecting rod 2, one end of the connecting rod 2 is detachably connected to a first sleeve 31, and one end of the first sleeve 31 is movably provided with a Clamping claw 32, a second sleeve 33 can be screwed on the first sleeve 31, the outer surface of the first sleeve 31 is provided with a Several grooves 4, one of the grooves 4 is detachably provided with a fastening handle 5, the teeth on the fastening handle 5 and the teeth on th...

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Abstract

The invention discloses a chuck used for a speed-changing electric drill. The chuck comprises a connecting rod, one end of the connecting rod is detachably connected with a first sleeve, and one end of the first sleeve is movably connected with a clamping claw. The first sleeve is sleeved with a second sleeve in a tightening mode. Multiple grooves are formed in one end, close to the clamping claw, of the outer surface of the first sleeve. A fastening handle is arranged on one groove in a separable mode, teeth on the fastening handle are meshed with teeth on the sleeve, and the first sleeve and the second sleeve are made of high-speed steel. According to the chuck used for the speed-changing electric drill, because the fastening handle used for tightening the sleeves is arranged in a matched mode, the clamping claw can fix a drill bit very firmly, the using efficiency of the electric drill is greatly improved, and safe and reliable effects are achieved.

Description

technical field [0001] The invention relates to an electric drill chuck, more precisely, a chuck for a variable-speed electric drill. Background technique [0002] An electric drill is a drilling tool powered by electricity. It is a conventional product in electric tools, and it is also the most demanded electric tool product. Electric drills are widely used in the drilling of wood, steel, alloy and other materials. Electric drills are distinguished according to the mode of operation, and can be divided into single-speed electric drills and variable-speed electric drills. [0003] In the use of variable-speed electric drills, because the chuck is tightened by hand, the clamping claws are not firmly clamped. Due to the change in speed, it is easy to cause the clamping claws on the electric drill chuck to loosen, which affects the working efficiency of the electric drill and easily causes damage to the operation. harm to the victim. Contents of the invention [0004] The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B51/12
CPCB23Q3/12B23B31/10B23B45/006
Inventor 刘影
Owner 刘影
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