Unlock instant, AI-driven research and patent intelligence for your innovation.

Ratchet device and screwdriver

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

Active Publication Date: 2015-09-23
XIAMEN NANCH BIT PRECISION TOOLS
View PDF9 Cites 0 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 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 located in the inner cavity of the handle, and the rotary dial 3 is placed in a handle. The port is connected with the ratchet gear rod 21 of the ratchet device, and the other end of the rotary dial 3 is fixedly connected with the screwdriver rod 4 (such as Figure 15 ), a reversing switch 5 is provided on the cavity wall of the handle 1 for controlling the reversing action of the ratchet device 2, the screwdriver rod 4 and the rotating 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. The first section and the second section of the screwdriver cooperate with the screwdriver rod through the ratchet device to perform dual power stroke extension operation or light and...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

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, which belong to the technical field of ratchets according to the International Patent Classification (IPC) and can be applied to the rotating structure on the screwdriver. Background technique [0002] The ratchet screwdriver can be turned both clockwise and counterclockwise, which is very convenient to use. At present, for screwdrivers with ratchets, the ratchet device is generally arranged at the front end of the handle, and the torque is transmitted by rotating the handle during use. Chinese document CN200620103975.8 discloses a combined ratchet screwdriver, which belongs to the design of the aforementioned structure and includes a handle and a ratchet device fixed on the handle. The ratchet device is provided with an axial central through hole for installing a screwdriver bit. The device includes a connecting seat, a sleeve, two brake blocks, an arc slider and a jacket. The function of t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B25B15/04
Inventor 王力南
Owner XIAMEN NANCH BIT PRECISION TOOLS