Single waterway shaft structure

Patent metadata

Field	Value
Publication number	US-9803345-B1
Application number	US-201615182622-A
Country	US
Kind code	B1
Filing date	Jun 15, 2016
Priority date	Jun 15, 2016
Publication date	Oct 31, 2017
Grant date	Oct 31, 2017

Abstract

A single waterway shaft structure includes a valve housing, a valve cover, a temperature control rod assembly composed of a water stopper and a temperature adjustment rod, a spring, and a gasket. A lower portion of the temperature control rod assembly is formed with an eccentric water hole. The gasket and the spring are placed in an eccentric water inlet of the valve housing in order and confined in the valve housing. The temperature control rod assembly cooperates with a faucet handle. A one-way connecting structure is provided between the valve cover and the valve housing. An upper end of the valve cover is provided with a fan-shaped limit block for limiting the turning angle of the temperature control rod assembly. The shaft is designed to be one-piece.

First claim

What is claimed is:

1. A single waterway shaft structure, comprising a valve housing, a valve cover, a temperature control rod assembly composed of a water stopper and a temperature adjustment rod, a spring, and a gasket; a bottom of the valve housing being formed with an eccentric water inlet, a side wall of the valve housing being formed with a water outlet; a lower portion of the temperature control rod assembly being formed with an eccentric water hole, a side portion of the temperature control rod assembly being formed with an opening in communication with the water hole; characterized in that: the gasket and the spring are placed in the eccentric water inlet of the valve housing in order and are pressed by the water stopper at the lower portion of the temperature control rod assembly, through the valve cover to cooperate with the valve housing, the gasket, the spring, and the temperature control rod assembly are confined in the valve housing, a rear portion of the temperature adjustment rod of the temperature control rod assembly passes through the valve cover and extends out of the valve cover to form a guide end to mate with a faucet handle; a one-way connecting structure is provided between the valve cover and the valve housing; and an upper end of the valve cover is provided with a fan-shaped limit block for limiting a turning angle of the temperature control rod assembly.

2. The single waterway shaft structure as claimed in claim 1 , wherein the one-way connecting structure includes at least two sunken troughs formed in a lower portion of the valve cover, at least two through troughs in communication with an outer side wall of the valve cover, positioning shoulder blocks provided on the valve housing and corresponding in number to the sunken troughs so as to engage with the sunken troughs, and engaging buckles provided on the valve housing and corresponding in number to the through troughs so as to engage with the through troughs.

3. The single waterway shaft structure as claimed in claim 2 , wherein one pair or more of the sunken troughs or the through troughs are guide troughs, and one pair or more of the positioning shoulder blocks and the engaging buckles are guide configurations.

4. The single waterway shaft structure as claimed in claim 1 , wherein the sunken troughs and the through troughs are disposed on the valve housing, and the positioning shoulder blocks and the engaging buckles are disposed on the valve cover to constitute the one-way connecting structure.

5. The single waterway shaft structure as claimed in claim 4 , wherein one pair or more of the sunken troughs or the through troughs are guide troughs, and one pair or more of the positioning shoulder blocks and the engaging buckles are guide configurations.

6. The single waterway shaft structure as claimed in claim 1 , wherein a lower surface of the valve housing is provided with an eccentric cylinder, the eccentric water inlet is disposed in the eccentric cylinder in communication with an interior of the valve housing, an inner side wall and a bottom side wall of the valve housing define a circular space therebetween, the circular space has an eccentric cylinder hole therein, the eccentric water inlet is disposed at a bottom of the eccentric cylinder hole, the gasket and the spring are installed in the eccentric cylinder hole, and the water outlet is disposed between the inner side wall and an outer side wall of the valve housing to communicate with the inner side wall and the outer side wall.

7. The single waterway shaft structure as claimed in claim 1 , wherein a lower portion of the valve cover is formed with a first chamber, an upper portion of the valve cover is formed with a second chamber, the first chamber is placed and sealed in the valve housing or fitted on the valve housing in a sealing way, and the second chamber is adapted for insertion of the temperature adjustment rod.

8. The single waterway shaft structure as claimed in claim 1 , wherein the water stopper of the temperature control rod assembly is provided with the water hole in a crescent shape and hooks at two sides thereof to cooperate with the temperature adjustment rod, the water stopper is attached to the gasket to form a water flow switch; and the temperature control rod assembly passes through the circular space of the valve housing and the first chamber and the second chamber of the valve cover.

9. The single waterway shaft structure as claimed in claim 1 , wherein the water stopper is one of a stainless steel plate, a plastic plate, a composite plate, and a ceramic plate.

Assignees

• Xiamen Lota Int Co Ltd

Inventors

• Li Keping
• Zeng Canzhong

Classifications

• Y10T137/7504

  Removable valve head and seat unit · CPC title

• F16K15/03

  with a hinged closure member {or with a pivoted closure member} · CPC title

• F16K27/12

  Covers for housings · CPC title

• E03C1/0408 Primary

  Water installations especially for showers (E03C1/06 takes precedence; shower heads B05B1/18) · CPC title

• F16K5/00

  {Plug valves;} Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary (taps of the lift-valve type F16K1/00) · CPC title