Unlock instant, AI-driven research and patent intelligence for your innovation.

Valve cock and valve

A valve bolt and valve stem technology, applied in the field of valve bolts and valves, can solve the problems of reduced reliability and wear of valve bolts, and achieve the effects of inhibiting wear, improving reliability and absorbing shape errors.

Inactive Publication Date: 2005-02-09
PACIFIC INDUSTRIAL CO LTD
View PDF1 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the above-mentioned existing valve plug, in the process of connecting the conical portion with the small-diameter portion of the flow path, and then deepening the threaded portion of the valve plug to achieve a tight connection between the conical portion and the small-diameter portion, due to the fact that the conical portion Pushing to the side of the small diameter part slides and rotates, so the parts where they slide against each other will wear out, and the reliability of the repeated use of the valve plug will decrease
Moreover, in the conventional valve plug, in the state where the tool is fixed in the tool hole, since the communication hole is blocked, the release operation of compressed air cannot be performed while screwing the valve plug with the tool.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Valve cock and valve
  • Valve cock and valve
  • Valve cock and valve

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0048] The following is based on Figure 1 to Figure 6 A first embodiment of the present invention will be described.

[0049] In the valve 10 of this embodiment, a valve plug 30 is screwed inside the valve stem 11 . Stem 11, for example may be a tube made of aluminum, along the figure 1 Extend in the up and down direction. Moreover, the coupling portion 12 protruding from the lower end surface of the valve stem 11 is connected to, for example, the refrigerant pipe 13 of the automobile air conditioner, and the flow path 14 inside the valve stem 11 is connected to the refrigerant flow path (not shown) of the automobile air conditioner. .

[0050] Such as image 3 As shown, the outside of the valve stem 11 is circular in axial view, as figure 1 As shown, an O-ring groove 25 is formed on the outer surface of the valve stem 11 in the middle of the axial direction. Furthermore, an O-ring 26 can be attached to the O-ring groove 25 .

[0051] The flow path 14 inside the stem...

no. 2 example

[0068] This embodiment has the valve plug 30 of the first embodiment, between the end surface 37A of the flange 37 provided on the screw member 31 and the inner surface 43 of the cylindrical part 41 provided on the rotary head member 40, a compression The structure of the coil spring 50. The structure other than the above is the same as that of the first embodiment, and the same reference numerals are assigned to the same parts, and the repeated description thereof will be omitted.

[0069] In the valve plug 30 of this embodiment, when the rotary head member 40 leaves the small-diameter portion 17, the elastic member 50 is compressed and held at a position floating from the screw member 31 (refer to Figure 7 ). In this way, when the threaded member 31 is screwed into the flow path 14, when the front end 45 of the rotating head member 40 contacts the opening edge 19 of the small diameter portion 17, the compression elastic member 50 is deformed, and the rotating head member 4...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a valve plug and a valve that can improve the reliability for repeat application. The wear by the sliding revolution between a rotary head member 40 and a small diameter 17 is restrained when the rotary head member 40 is brought into close contact with the small diameter 17 of a channel 14 and the reliability for repeat application is improved, because the rotary head member 40 is equipped to the top of screwing member 31 of the valve plug 30 revolvably according to the valve 10 and the valve plug 30. Also, the compressed fluid can be released or charged during operating the valve plug 30 by a tool 54 because a communicating path 35 is formed in an other position than a tool hole 33 to fit the tool 54 in the valve 10 for this application.

Description

technical field [0001] The present invention relates to a valve plug screwed inward from an opening at one end of a flow path for filling and / or releasing compressed fluid to seal a small-diameter portion inside the flow path, and a valve provided with the valve plug inside. Background technique [0002] Conventionally, with regard to this kind of valve, it is known that a valve plug with a pointed conical portion integrally formed at the front end of a screw member is screwed into a flow path in a cylindrical valve stem (stem), and the conical portion of the valve plug protrudes into the valve. The small-diameter portion inside the flow path seals the flow path. Furthermore, a tool hole is formed on the end surface of the valve plug opposite to the conical portion, and a communication hole is provided connecting the inner surface of the tool hole and the side surface close to the conical portion. Also, when the conical portion is separated from the small diameter portion, ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F16K17/19F16K1/12F16K1/48F16K1/50F16K17/02
CPCF16K1/482F16K1/12F16K1/50F16K17/19F16K17/02
Inventor 大野胜司
Owner PACIFIC INDUSTRIAL CO LTD