CN202252316U - Sealing structure for valve rod - Google Patents

Sealing structure for valve rod Download PDF

Info

Publication number
CN202252316U
CN202252316U CN2011204033716U CN201120403371U CN202252316U CN 202252316 U CN202252316 U CN 202252316U CN 2011204033716 U CN2011204033716 U CN 2011204033716U CN 201120403371 U CN201120403371 U CN 201120403371U CN 202252316 U CN202252316 U CN 202252316U
Authority
CN
China
Prior art keywords
valve rod
stuffing
filler assembly
sealing structure
component
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2011204033716U
Other languages
Chinese (zh)
Inventor
王建新
张逸芳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Shentong Valve Co Ltd
Original Assignee
Jiangsu Shentong Valve Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Shentong Valve Co Ltd filed Critical Jiangsu Shentong Valve Co Ltd
Priority to CN2011204033716U priority Critical patent/CN202252316U/en
Application granted granted Critical
Publication of CN202252316U publication Critical patent/CN202252316U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

The utility model provides a sealing structure for a valve rod. The sealing structure for the valve rod comprises a valve body, a valve rod, a stuffing box, a stuffing component and a packing gland, wherein the stuffing component is arranged in the stuffing box on the valve body, the stuffing component is compressed by the threaded packing gland, and an upper distance ring, a spring component and a lower distance ring are arranged between the packing gland and the stuffing component in sequence. The sealing structure for the valve rod, provided by the utility model, has the advantages that the abrasion of the stuffing component due to long-time operation can be automatically compensated, and the stuffing component is maintenance-free.

Description

A kind of valve rod leak-proof structure
Technical field
The utility model relates to a kind of sealing configuration, particularly relates to a kind of packing seal structure of valve rod.
Background technique
Use the use valve in industries such as municipal administration, metallurgy at present, the general Gland that adopts of its stem packing sealing compresses filler assembly, to keep the sealing at valve rod place.Behind its long-play,, need in time to change filler assembly because the wearing and tearing of filler assembly cause the leakage at valve rod place.
Summary of the invention
In order to overcome existing stem packing sealing configuration behind long-play, because the wearing and tearing of filler assembly cause the leakage at valve rod place, need in time to change the deficiency of filler assembly, the utility model provides a kind of valve rod leak-proof structure.
It is a kind of valve rod leak-proof structure that the utility model solves the technological scheme that its technical problem adopted; Comprise valve body, valve rod, stuffing box, filler assembly, Gland; In the stuffing box on the valve body filler assembly is housed; The Gland of thread type compresses filler assembly, and upper isolating ring, spring assembly, lower isolating ring also are housed between Gland and the filler assembly successively.
The beneficial effect of the utility model is can compensate filler assembly automatically owing to long playing wearing and tearing, can be non-maintaining.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Fig. 1 is the tectonic maps of present embodiment
Among the figure: 1. valve rod; 2. Gland; 3. upper isolating ring; 4. spring assembly; 5. lower isolating ring; 6. filler assembly; 7. stuffing box; 8. valve body.
Embodiment
A kind of valve rod leak-proof structure as shown in Figure 1 comprises valve body 8, valve rod 1, stuffing box 7, filler assembly 6, Gland 2, in the stuffing box 7 on the valve body 8 filler assembly 6 is housed; The Gland 2 of thread type compresses filler assembly 6; Upper isolating ring 3, spring assembly 4, lower isolating ring 5 also are housed successively, after filler assembly 6 wearing and tearing, under spring assembly 4 active forces between Gland 2 and the filler assembly 6; Automatically compensation reaches non-maintaining effect.

Claims (1)

1. valve rod leak-proof structure; Comprise valve body, valve rod, stuffing box, filler assembly, Gland; In the stuffing box on the valve body filler assembly is housed; The Gland of thread type compresses filler assembly, it is characterized in that: upper isolating ring, spring assembly, lower isolating ring also are housed between described Gland and the filler assembly successively.
CN2011204033716U 2011-10-15 2011-10-15 Sealing structure for valve rod Expired - Fee Related CN202252316U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011204033716U CN202252316U (en) 2011-10-15 2011-10-15 Sealing structure for valve rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011204033716U CN202252316U (en) 2011-10-15 2011-10-15 Sealing structure for valve rod

Publications (1)

Publication Number Publication Date
CN202252316U true CN202252316U (en) 2012-05-30

Family

ID=46113558

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011204033716U Expired - Fee Related CN202252316U (en) 2011-10-15 2011-10-15 Sealing structure for valve rod

Country Status (1)

Country Link
CN (1) CN202252316U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104265993A (en) * 2014-10-11 2015-01-07 苏州道森钻采设备股份有限公司 Valve rod ladder pressure difference seal structure for ultrahigh pressure fracture brake valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104265993A (en) * 2014-10-11 2015-01-07 苏州道森钻采设备股份有限公司 Valve rod ladder pressure difference seal structure for ultrahigh pressure fracture brake valve

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120530

Termination date: 20191015

CF01 Termination of patent right due to non-payment of annual fee