Nut for providing quick assembly and disassembly

Patent metadata

Field	Value
Publication number	US-9637893-B2
Application number	US-201414321653-A
Country	US
Kind code	B2
Filing date	Jul 1, 2014
Priority date	Aug 9, 2013
Publication date	May 2, 2017
Grant date	May 2, 2017

Abstract

A nut is employed to fix a faucet on a wash basin or a kitchen basin and contains an external driving member and an internal screwing member. The external driving member includes a cylindrical fence, an accommodating cavity, a first edge, and a second edge; the cylindrical fence has at least one limiting block and a griping face. The internal screwing member is fitted into and retained with the accommodating cavity and includes an annular cliff, a through orifice, a third edge, and a fourth edge; the annular cliff has plural slots longitudinally extending and isometrically arranged to the fourth edge from the third edge so as to define a plurality of flexible retaining portions, each having an inner threaded section; the annular cliff also has at least one longitudinal recess for retaining with the at least one limiting block of the external driving member and has a contacting fringe.

First claim

What is claimed is:

1. A nut being employed to fix a faucet on a wash basin or a kitchen basin; the faucet including a screwing tube disposed on a lower side thereof and extending out of a bottom fence of the wash basin or the kitchen basin via a fixing hole; the nut comprising:
an external driving member being in a sleeve shape and including a cylindrical fence and an accommodating cavity defined on at least an upper side of the cylindrical fence, a first edge formed around a top surface of the cylindrical fence, a second edge arranged around a bottom surface of the cylindrical fence; the cylindrical fence having at least one limiting block extending outwardly from an inner surface thereof opposite to the first edge; the cylindrical fence also including a griping face formed on an outer surface thereof;
an internal screwing member being fitted into and retained with the accommodating cavity of the external driving member and being in a sleeve shape, the internal screwing member including an annular cliff, a through orifice defined in the annular cliff, a third edge formed around a top end of the annular cliff, and a fourth edge arranged around a bottom end of the annular cliff; the annular cliff having plural slots longitudinally extending to the fourth edge from the third edge so as to define a plurality of flexible retaining portions, wherein when the internal screwing member is not fitted into and retained with the external driving member, the plurality of flexible retaining portions are in a flexible expending state, each flexible retaining portion having an inner threaded section formed on an inner wall thereof, wherein when each flexible retaining portion is in the flexible expending state, the screwing tube allows being inserted through the through orifice, and when each flexible retaining portion is in a flexible retracting state, the screwing tube is retained with each flexible retaining portion; the annular cliff also has at least one longitudinal recess for retaining with the at least one limiting block of the external driving member, such that the internal screwing member does not remove from the external driving member, and the external driving member moves between a releasing position and a forcing position along an axis direction; the releasing position is a lower dead point where the external driving member moves downwardly relative to the internal screwing member, and the forcing position is an upper dead point where the external driving member moves upwardly relative to the internal screwing member; when the external driving member is located at the releasing position, the plurality of flexible retaining portions of the internal screwing member are freely accommodated in the accommodating cavity and in the flexible expending state; when the external driving member is located at the forcing position, the plurality of flexible retaining portions of the internal screwing member are forced by the accommodating cavity to be in the retracting state; the annular cliff further has at least one peripheral groove circumferentially arranged around an upper side of an outer wall thereof and communicating with the at least one longitudinal recess, such that when the external driving member is located at the forcing position, the at least one limiting block is rotatably slid into and retained with the at least one peripheral groove so that the external driving member is fixed at the forcing position, and the internal screwing member is driven by the external driving member which is rotated; the annular cliff further has a contacting fringe formed thereon opposite to the third edge, such that when the plurality of flexible retaining portions of the internal screwing member retain with the screwing tube, the contacting fringe retains with or removes from the bottom fence of the wash basin.

2. The nut as claimed in claim 1 , wherein the longitudinal recess is formed by one of the plural slots.

3. The nut as claimed in claim 2 , wherein the external driving member includes two limiting blocks symmetrically provided thereon; the internal screwing member includes two longitudinal recesses symmetrically arranged thereon and formed by two of the plural slots symmetrical to the two longitudinal recesses.

4. The nut as claimed in claim 1 , wherein the external driving member includes at least two limiting blocks; and the internal screwing member includes at least two longitudinal recesses.

5. The nut as claimed in claim 1 , wherein the internal screwing member includes two peripheral grooves.

6. The nut as claimed in claim 1 , wherein the internal screwing member includes four slots for defining four flexible retaining portions.

7. The nut as claimed in claim 6 , wherein the four slots are isometrically arranged along the annular cliff.

8. The nut as claimed in claim 1 , wherein the plural slots are isometrically arranged along the annular cliff.

9. The nut as claimed in claim 1 , wherein the contacting fringe is defined by plural arcuate end faces of the plurality of flexible retaining portions opposite to the third edge.

10. The nut as claimed in claim 1 , wherein the annular cliff further has plural defining shoulders extending outwardly from the top end thereof opposite to the third edge, hence when the external driving member moves from the releasing position to the forcing position, the first edge of the cylindrical fence abuts against the plural defining shoulders of the internal screwing member to form the upper dead point.

11. The nut as claimed in claim 10 , wherein each flexible retaining portion has a peripheral lip extending outwardly therefrom opposite to the third edge so as to form each of the plural defining shoulders.

12. The nut as claimed in claim 1 , wherein when the plurality of flexible retaining portions are in the flexible expending state, plural conical faces form on outer walls of the plurality of flexible retaining portions; and the plural conical faces of the plurality of flexible retaining portions are forced by the accommodating cavity to retract flexibly, when the external driving member moves to the forcing position from the releasing position.

13. The nut as claimed in claim 1 , wherein each of the at least one limiting block has a sliding surface and a contacting face, such that each limiting block slides into each of the at least one peripheral groove by ways of the sliding surface, and the contacting face contacts with each peripheral groove after each limiting block slides into each peripheral groove.

14. The nut as claimed in claim 13 , wherein the sliding surface is an oblique surface and forms on a bottom surface of each limiting block facing to the second edge, and the contacting face is a flat surface and connects with the guiding surface.

15. The nut as claimed in claim 1 , wherein each limiting block has a locking protrusion, and each peripheral groove has a locking indentation for retaining with the locking protrusion of each limiting block after each limiting block is rotatably slid into each peripheral groove, such that each limiting block is retained in each peripheral groove securely.

16. The nut as claimed in claim 15 , wherein the locking protrusion is arranged on the bottom surface of each limiting block facing to a third edge, and the locking indentation is defined on a wall surface of each peripheral groove.

17. The nut as claimed in claim 1 , wherein each limiting block of the external driving member has a sliding surface and a locking protrusion formed behind the sliding surface, such that each limiting block slides into each peripheral groove by wa

Assignees

• Globe Union Ind Corp

Inventors

• Lin Yiping
• Yang Chaota
• Hong Chuwan

Classifications

• F16B37/0864

  with the threaded portions of the nut engaging the thread of the bolt by pressing or rotating an external retaining member such as a cap, a nut, a ring or a sleeve (F16B37/0835 takes precedence) · CPC title

• E03C1/0401 Primary

  Fixing a tap to the sanitary appliance or to an associated mounting surface, e.g. a countertop · CPC title

• Y10T403/535

  with separate force-applying means · CPC title