Title:
EXPANSION BOLT AND SLIP-PROOF EXPANSION SHIELD THEREOF
Document Type and Number:
WIPO Patent Application WO/2013/000340
Kind Code:
A1
Abstract:
An expansion bolt and a slip-proof expansion sleeve thereof. The slip-proof expansion sleeve (1) comprises a cylindrical wall, and multiple cutting grooves (11) arranged on one end of the cylindrical wall and extending towards the middle portion thereof in the axial direction, forming for the slip-proof expansion sleeve (1) multiple blade units that open outward easily. The slip-proof expansion sleeve (1) is provided on the inner wall thereof with an internal thread capable of mating with the bolt, and on the outer wall with a slip-proof rough surface (12). The slip-proof expansion sleeve (1) of the present invention can be used in tandem with various types of main bolts to form the expansion bolt of the present invention, such as fastening screws for ceiling, lighting, welding, and pendant. The expansion bolt of the present invention provides an increased friction between the slip-proof expansion sleeve and an installation bore, thus preventing slipping during installation and increasing greatly the efficiency of installing the expansion bolt.
More Like This:
Inventors:
WEN SHAOSONG (CN)
Application Number:
PCT/CN2012/075144
Publication Date:
January 03, 2013
Filing Date:
May 07, 2012
Export Citation:
Assignee:
WEN SHAOSONG (CN)
International Classes:
F16B13/06
Foreign References:
| CN1133948A | 1996-10-23 | |||
| CN201763737U | 2011-03-16 | |||
| CN101852236A | 2010-10-06 | |||
| CN201615117U | 2010-10-27 | |||
| US6457922B1 | 2002-10-01 | |||
| CN101245801A | 2008-08-20 | |||
| CN202118050U | 2012-01-18 |
Attorney, Agent or Firm:
CN-KNOWHOW INTELLECTUAL PROPERTY AGENT LIMITED (CN)
北京路浩知识产权代理有限公司 (CN)
北京路浩知识产权代理有限公司 (CN)
Download PDF:
Claims:
Previous Patent: HIGH-CONCENTRATION SOLAR BATTERY CHIP
Next Patent: ADJUSTING COMPONENT USED FOR BREATHING MASK AND BREATHING MASK
Next Patent: ADJUSTING COMPONENT USED FOR BREATHING MASK AND BREATHING MASK