Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Screwdriver

A screwdriver and knife handle technology, applied in the field of manual press screwdrivers, can solve the problems of time-consuming and laborious, low screw locking efficiency, etc., and achieve the effect of preventing gyration and improving locking efficiency

Inactive Publication Date: 2016-07-20
FU TAI HUA IND SHENZHEN +1
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of screwdriver is not only time-consuming and laborious to use, but also the screw locking efficiency is very low

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
  • Screwdriver
  • Screwdriver
  • Screwdriver

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] figure 1 and Figure 4 A preferred embodiment of a screwdriver 100 of the present invention is shown. The screwdriver 100 includes a handle 10, a cutter head 20 located at the front end of the handle 10, a screw rod 30 housed inside the handle 10, a first elastic element 40, and a second elastic element sleeved on the outer surface of the handle 10. 50 and operating part 60.

[0015] Specifically, please also refer to Figure 2-3 , the handle 10 includes a body 11 , connecting caps 12 and rear covers 13 respectively located at opposite ends of the body 11 , and a sleeve 14 sleeved on the body 11 .

[0016] The body 11 is a hollow cylinder. In this embodiment, it includes a first body 111 and a second body 112 connected to each other, and the first body 111 and the second body 112 are both annular. In this embodiment, the outer diameter of the first body 111 is smaller than the outer diameter of the second body 112 , and the first body 111 and the second body 112 ar...

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 screwdriver. The screwdriver comprises a shank and a tool bit arranged at the front end of the shank; the shank forms a cavity; at least one chute is axially formed in the side wall of the shank; a spiral rod is positioned in the cavity, and is fixed corresponding to the tool bit; a spiral groove is formed in the outer wall of the spiral rod; an operation part coats the spiral rod, and includes at least one limiting block and thimbles penetrating through the limiting blocks; the limiting blocks are embedded in the chutes, and can slide in the axial direction of the shank; the thimbles are inwards shrunk and inserted in a spiral groove of the spiral rod when being suffered from an external force effect; and the limiting blocks axially slide in the chutes through elastic elements to drive rotation of the spiral rod and the tool bit. Compared with the prior art, the screwdriver skillfully uses the spiral principle for converting a linear motion of the operation part to a rotating motion of the spiral rod to drive the tool bit to realize screw locking along with rotation of the spiral rod, saves more time and labors in use, and is high in efficiency.

Description

technical field [0001] The invention relates to a screwdriver, in particular to a manual pressing screwdriver. Background technique [0002] Existing screwdrivers usually have a knife handle, a knife shaft and a knife head, and the knife head and knife handle are respectively located at opposite ends of the knife bar. The user applies a torque to the screwdriver by holding the handle of the knife, and the torque is transmitted to the knife head through the knife rod, and then drives the screw to rotate with the knife head to realize the locking of the screw. This screwdriver is not only time-consuming and labor-intensive to use, but also the screw locking efficiency is very low. Contents of the invention [0003] In view of this, it is necessary to provide a screwdriver that saves time and labor and has high screw locking efficiency. [0004] A screwdriver, comprising a handle and a cutter head arranged at the front end of the handle, the handle forms a cavity, the side ...

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 Applications(China)
IPC IPC(8): B25B15/06
CPCB25B15/06
Inventor 吴明勇蒋志兵
Owner FU TAI HUA IND SHENZHEN
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com