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Gear shifting device

A gear switching and gear technology, which is applied in the field of gear switching devices, can solve the problems of occupying space, complicated assembly, and enlarged dimensions of electric tools, and achieves the effects of convenient assembly, simple structure and reliable positioning.

Pending Publication Date: 2020-12-15
苏州东成工具科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the leaf spring needs to be assembled into the support of the electric tool housing, which makes the assembly of the device cumbersome; meanwhile, the manufacturing process of the leaf spring is relatively complicated, and the support is a pin protruding from the electric tool housing. column, which takes up extra space inside the power tool housing, making the overall size of the power tool larger

Method used

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Embodiment Construction

[0029] Such as Figure 1 to Figure 8 Shown is a gear switching device 100 related to the present invention, which is used for gear switching of two-stage transmission of electric tools and includes a gear box 1 , a shift push button 2 and a bow 3 . The shift push button 2 can move between the first gear and the second gear, the top 31 of the bow 3 is fixed on the lower part of the shift push button 2 and the bottom of the bow 3 is connected to the gear On the gearbox 1, the shift push button 2 drives the bow 3 to move relative to the housing 10 of the gearbox 1 to realize gear shifting.

[0030] combine image 3 As shown, the bow 3 is made of metal wire and is provided with two elastic parts 32 extending obliquely downward from both ends of the top 31 and two extension parts 33 extending oppositely from the bottom ends of the two elastic parts 32. The component 3 straddles the housing 10 of the gear box 1 through two elastic parts 32 . The gear case 1 is provided with two t...

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Abstract

The invention disclose a gear shifting device. The device comprises a gear box, a gear shifting push button and an arch-shaped piece, wherein the gear shifting push button moves between a first gear and a second gear, the top of the arch-shaped piece is fixed to the lower portion of the gear shifting push button, the bottom of the arch-shaped piece is connected to the gear box, and the gear shifting push button drives the arch-shaped piece to move relative to a shell of the gear box to achieve gear shifting. The gear shifting device further comprises a limiting elastic piece, and the limitingelastic piece is simple in structure and comprises a top pivoted to the lower portion of the gear shifting push button and a connecting part pivoted to the shell of the gear box. When the gear shifting push button moves from the first gear to the second gear, the gear shifting push button pushes the limiting elastic piece to pivot around the connecting part, and when the limiting elastic piece crosses the position of the connecting part in the vertical direction, the limiting elastic piece pushes the gear shifting push button to move towards the second gear. The limiting elastic piece adopts the swing frame swinging principle, assembling is convenient, and the space is fully utilized while reliable positioning of the gear shifting push button is guaranteed.

Description

[technical field] [0001] The invention relates to a gear switching device, in particular to a gear switching device for two-stage gear shifting of an electric tool. [Background technique] [0002] Usually, the two-stage speed change of the electric tool is realized through the shifting structure on the transmission. Please refer to the Chinese Invention Patent Announcement No. CN1298513C for a device for switching a two-stage transmission of an electric tool. Sliding member, which is in operative connection with the movable part of the transmission. At the same time, a leaf spring extending transversely to the moving direction of the shifting slider is fixed with its two ends on the support in the housing of the power tool. The length of the leaf spring is greater than the distance between the two supporting parts and the connection with the shift sliding part to form a force transmission chain. When the selector slide is engaged in one of the two gears of the two-stage t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H59/10F16H59/12
CPCF16H59/10F16H59/12
Inventor 侯维平
Owner 苏州东成工具科技有限公司
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