Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
QUICK FASTENING DEVICE AND FASTENING METHOD FOR CONSTRUCTION FORMWORK
Document Type and Number:
WIPO Patent Application WO/2018/112706
Kind Code:
A1
Abstract:
Disclosed is a quick fastening device for a construction formwork, comprising a fixer and a puller, wherein a pressing and fixing face of the fixer comprises a cambered clamping groove (111) and a reinforcing rib (113) distributed symmetrically, the cambered clamping groove (111) is in the shape of a hyperbolic paraboloid, and the fixer is provided with a non-return ratchet wheel (17), which can be pressed against a steel bar via a spring (18) so as to be fixed; and the puller comprises an inner sleeve (22), an outer sleeve (21) and a crescent gauge (23), wherein the outer sleeve (21) is symmetrically provided with a pair of clamping grooves (29), and the clamping grooves (29) are provided with linear guide rails therein, enabling wing plates (28) symmetrically provided on the inner sleeve (22) to smoothly move along the linear guide rails. Also provided is a method for fastening a construction formwork using the device, and according to this method, a main formwork can be pulled tightly and fastened more conveniently, quickly and firmly.

Inventors:
PAN, Wenzhai (4-3-202, Dongfengxinyuan Aodong Road, Xiama Community, Shangma Sub-district,Chengyang Distric, Qingdao Shandong 9, 266109, CN)
Application Number:
CN2016/110781
Publication Date:
June 28, 2018
Filing Date:
December 19, 2016
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
PAN, Wenzhai (4-3-202, Dongfengxinyuan Aodong Road, Xiama Community, Shangma Sub-district,Chengyang Distric, Qingdao Shandong 9, 266109, CN)
International Classes:
E04G17/065; E04G13/02; E04G17/00
Foreign References:
CN106168066A2016-11-30
CN106088594A2016-11-09
CN102561684A2012-07-11
CN202359741U2012-08-01
US4185804A1980-01-29
Download PDF: