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Ratchet device and screwdriver

A ratchet device and screwdriver technology, applied to screwdrivers, manufacturing tools, etc., can solve the problems of time-consuming, labor-intensive, low efficiency, etc., and achieve the effect of convenient use and reasonable structure

Active Publication Date: 2013-03-06
XIAMEN NANCH BIT PRECISION TOOLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the structure of the current ratchet screwdriver is limited. When using it, the handle is rotated to apply force, that is, the hand and arm can only be rotated at the same time to apply a large torque, and the wrist needs to be turned back and forth. Gears, resulting in low efficiency, especially in special occasions such as car chassis operation, time-consuming and laborious

Method used

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  • Ratchet device and screwdriver
  • Ratchet device and screwdriver
  • Ratchet device and screwdriver

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0032] Example: see Figure 1 to Figure 19 , a two-section rotary extended-range ratchet screwdriver, comprising a handle 1, a ratchet device 2, a rotary dial 3 and a screwdriver rod 4, the ratchet device 2 is arranged in the inner cavity of the handle, and the rotary dial 3 is placed on one side of the handle The port is connected to the ratchet rod 21 of the ratchet device, and the other end of the rotary dial 3 is fixedly connected to the screwdriver rod 4 (such as Figure 15 ), a reversing switch 5 is provided on the cavity wall of the handle 1 to control the reversing action of the ratchet device 2, the screwdriver rod 4 and the rotary dial 3 form the first section of the screwdriver, the handle 1, the reversing switch 5 And the ratchet device 2 forms the second section of the screwdriver, and the first and second sections of the screwdriver cooperate with the screwdriver rod through the ratchet device to carry out double power range-extending operations or operations in ...

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PUM

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Abstract

The invention discloses a ratchet device which comprises a ratchet gear rod, a pair of ratchet pawls, spring pieces, a ratchet shell body and a reversing mechanism; and the compression spring pieces on both sides of a ratchet move leftwards and rightwards through the reversing mechanism so as to select the left stress and the right stress. The invention also provides a screwdriver which applies the ratchet device; the first section and the second section of the screwdriver are matched with a screwdriver rod through the ratchet device so as to carry out dual-power extended-range operation or the operation in light and heavy strokes during a screw locking process; two driving methods better ensure the comfort when a screw is tightened or unscrewed; and the screwdriver has the advantages of reasonable structure, labor saving, convenience in use and the like.

Description

technical field [0001] The invention discloses a ratchet device and a screwdriver, belongs to the technical field of ratchets according to the International Patent Classification (IPC), and is applicable to the rotation structure on the screwdriver. Background technique [0002] The ratchet screwdriver can be turned clockwise or counterclockwise, which is very convenient to use. At present, screwdrivers with ratchets are generally provided with a ratchet device at the front end of the handle, and the torque transmission is realized by the rotation of the handle during use. Chinese document CN200620103975.8 discloses a combined ratchet screwdriver, which belongs to the design of the aforementioned structure, including a handle and a ratchet device fixed on the handle. The ratchet device is provided with an axial central through hole for installing the screwdriver bit. The ratchet The device includes a connecting seat, a sleeve, 2 brake blocks, an arc slider and a jacket. Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B15/04
Inventor 王力南
Owner XIAMEN NANCH BIT PRECISION TOOLS