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Switch reversing device in electric tool

A technology for electric tools and commutation devices, which is applied to electrical switches, circuits, electrical components, etc., can solve the problems of complex commutation structure, poor contact, and many parts, and achieve the effect of compact overall structure and flexible commutation.

Inactive Publication Date: 2012-10-10
ZHANGJIAGANG HUAJIE ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In view of the switch reversing device in commonly used electric tools, the reversing structure is more complicated (independent reversing) and the shell assembly
In order to cooperate with the reversing structure and consider the safety, the distance between the ends of the four pairs of terminals is designed to be very large, which makes the overall size of the reversing device larger, and poor contact is prone to occur during the reversing operation. Too many parts, causing inconvenient assembly

Method used

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  • Switch reversing device in electric tool

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Embodiment Construction

[0017] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0018] like figure 1 , figure 2 As shown, the switch reversing device in the electric tool according to the present invention includes a housing 1, and two pairs of terminals (the first terminal 2, the second terminal 3, the third terminal 4, the fourth terminal 5). One end of the first terminal 2, the second terminal 3, the third terminal 4 and the fourth terminal 5 pass through the housing 1 respectively, wherein the connection line at the other end of the first terminal 2 and the third terminal 4 is connected with the second terminal 3 and the connecting line at the other end of the fourth terminal 5 are perpendicular to each other, and the distance from the end of the first terminal 2, the second terminal 3, the third terminal 4, and the fourth terminal 5 to the vertical foot is equal. A disc-shaped reversing shaft 6 is arranged on the...

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Abstract

The invention discloses a switch reversing device in an electric tool. The switch reversing device is quick in reversing and good in contact after reversing, and comprises a shell, wherein two pairs of terminals are arranged in the shell, a connecting wire at one end of one pair of terminals is perpendicular to a connecting wire at one end of the other pair of terminals, the distance between the end of each terminal and the foot of a perpendicular is equal, and a disc-shaped reversing shaft is respectively arranged on the same sides of the four terminals; two parallel reversing sheets for switching the on / off of the two pairs of terminals are arranged on a part of the reversing shaft positioned on one side of the terminals; a circle of positioning groove or positioning bulge is arranged on the outer wall of the reversing shaft along the circumferential direction; a positioning rib which is buckled in the positioning groove on the reversing shaft or two positioning separation blades which clamp the positioning bulge are arranged in the shell; and a reversing rod which drives the reversing shaft to rotate is arranged on the shell. The switch reversing device has the advantages that when the switch reversing device is rotated by using the disc-shaped reversing shafts, the distance between the ends of the four terminals can be reduced, so that the entire structure is more compact, and the reversing operation is flexible, quick and convenient.

Description

technical field [0001] The invention relates to a switch reversing device in an electric tool. Background technique [0002] In view of the switch reversing device in commonly used electric tools, the reversing structure is relatively complicated (independent reversing) and the shell is assembled. In order to cooperate with the reversing structure and consider the safety, the distance between the ends of the four pairs of terminals is designed to be very large, which makes the overall size of the reversing device larger, and poor contact is prone to occur during the reversing operation. There are many parts, which makes assembly inconvenient. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a switch reversing device in an electric tool with fast reversing and good contact after reversing. [0004] In order to solve the above-mentioned technical problems, the technical solution adopted in the present invention is...

Claims

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Application Information

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IPC IPC(8): H01H9/02H01H1/58
Inventor 陆亚洲谭和平
Owner ZHANGJIAGANG HUAJIE ELECTRONICS
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