Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
CONNECTION STRUCTURE OF BOLT AND NUT WITH DUMBBELL SHAPE BIDIRECTIONAL CONICAL THREAD HAVING SMALL LEFT TAPER AND LARGE RIGHT TAPER
Document Type and Number:
WIPO Patent Application WO/2019/192567
Kind Code:
A1
Abstract:
Disclosed is a connection structure of a bolt and a nut with a dumbbell shape bidirectional conical thread having a small left taper and a large right taper. An internal thread (6) is a bidirectional conical hole (41) in an inner surface of a tubular matrix (2), an external thread (9) is a bidirectional truncated cone body (71) in an outer surface of a columnar matrix (3), and each of the complete unit threads thereof is a dumbbell-like shape (94) bidirectional conical body with a left-side taper (95) smaller than a right-side taper (96) in the form of a spiral and having a small middle and two large ends; and the performance mainly depends on the circular conical surfaces and taper sizes of thread bodies cooperating with each other. The internal and external threads form a series of circular conical pairs with the bidirectional conical hole (41) and the bidirectional truncated cone body (71) by means of a cone hole containing a cone to form a thread pair (10) until the circular conical surfaces of inner and outer circular cones in the form of spirals are in sizing cooperation or sizing interference to realize a thread connection function.

Inventors:
YOU, Yihua (No.30 Yuxing East Street, Yucheng Subdistrict Yuhuan Cit, Taizhou Zhejiang 0, 317600, CN)
Application Number:
CN2019/081392
Publication Date:
October 10, 2019
Filing Date:
April 04, 2019
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
AMICUS VERITATIS MACHINERY CO., LTD. (No.23 Chijia, Kanmen Subdistrict Yuhuan Cit, Taizhou Zhejiang 2, 317602, CN)
International Classes:
F16B33/02; F16B35/04; F16B37/00
Domestic Patent References:
WO2003014584A12003-02-20
Foreign References:
CN105443543A2016-03-30
CN102852939A2013-01-02
CN204312513U2015-05-06
CN204664206U2015-09-23
EP2813715A12014-12-17
Download PDF: