CN204677879U - A kind of one-way valve valve gap and valve rod flexible sealing structure - Google Patents

A kind of one-way valve valve gap and valve rod flexible sealing structure Download PDF

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Publication number
CN204677879U
CN204677879U CN201520343541.4U CN201520343541U CN204677879U CN 204677879 U CN204677879 U CN 204677879U CN 201520343541 U CN201520343541 U CN 201520343541U CN 204677879 U CN204677879 U CN 204677879U
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CN
China
Prior art keywords
valve
valve gap
gap
valve rod
pressing plate
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
CN201520343541.4U
Other languages
Chinese (zh)
Inventor
闫秦峻
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.)
BENGBU NANZI INSTRUMENT Co Ltd
Original Assignee
BENGBU NANZI INSTRUMENT 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 BENGBU NANZI INSTRUMENT Co Ltd filed Critical BENGBU NANZI INSTRUMENT Co Ltd
Priority to CN201520343541.4U priority Critical patent/CN204677879U/en
Application granted granted Critical
Publication of CN204677879U publication Critical patent/CN204677879U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of one-way valve valve gap and valve rod flexible sealing structure, comprise valve gap, valve rod is slidably fitted with in valve gap, annular space is provided with between the upper semisection of valve gap and valve rod, in annular space, liner, lower spring cylinder, graphite packing, disrance sleeve, tetrafluoro filler, upper spring cylinder, Gland are installed from bottom to top successively, the top of Gland is provided with the pressing plate be sleeved on valve rod, pressing plate and valve gap upper-end surface are fixed by Stud connection part, and the upper end outer wall of valve gap is also combined with nut lock gripping members.The utility model novel in structural design, is isolated upper and lower stuffing box packing by disrance sleeve, coordinates the elastic performance of spring cylinder when pressing plate presses down simultaneously, ensures the tight property of stuffing box packing, improves sealability, extends the working life of valve.

Description

A kind of one-way valve valve gap and valve rod flexible sealing structure
technical field:
The utility model relates to one-way valve, particularly relates to a kind of one-way valve valve gap and valve rod flexible sealing structure.
background technique:
Sleeve one-way valve in the market the sealing of visual cognitive ability between spool and valve rod, can ensure its sealability mostly, but have ignored the sealing between valve rod and valve gap, can cause one-way valve shortening in working life equally.
model utility content:
In order to make up prior art problem, the purpose of this utility model is to provide a kind of one-way valve valve gap and valve rod flexible sealing structure, effectively can ensure the flexible sealing performance between valve rod and valve gap, increase the service life.
The technical solution of the utility model is as follows:
One-way valve valve gap and valve rod flexible sealing structure, comprise valve gap, valve rod is slidably fitted with in valve gap, annular space is provided with between the upper semisection of valve gap and valve rod, it is characterized in that: in described annular space, liner, lower spring cylinder, graphite packing, disrance sleeve, tetrafluoro filler, upper spring cylinder, Gland are installed from bottom to top successively, the top of Gland is provided with the pressing plate be sleeved on valve rod, pressing plate and described valve gap upper-end surface are fixed by Stud connection part, and the upper end outer wall of valve gap is also combined with nut lock gripping members.
Described one-way valve valve gap and valve rod flexible sealing structure, is characterized in that: described Gland lower end is stretched in annular space, and upper end stretches out valve gap upper end and described pressing plate is withstood at top.
The utility model has the advantages that:
The utility model novel in structural design, is isolated upper and lower stuffing box packing by disrance sleeve, coordinates the elastic performance of spring cylinder when pressing plate presses down simultaneously, ensures the tight property of stuffing box packing, improves sealability, extends the working life of valve.
accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model.
embodiment:
See accompanying drawing:
One-way valve valve gap and valve rod flexible sealing structure, comprise valve gap 1, valve rod 2 is slidably fitted with in valve gap 1, annular space is provided with between the upper semisection of valve gap 2 and valve rod, in annular space, liner 3, lower spring cylinder 4, graphite packing 5, disrance sleeve 6, tetrafluoro filler 7, upper spring cylinder 8, Gland 9 are installed from bottom to top successively, the top of Gland 9 is provided with the pressing plate 10 be sleeved on valve rod, pressing plate 10 is fixed by Stud connection part 11 with valve gap 1 upper-end surface, and the upper end outer wall of valve gap 1 is also combined with nut lock gripping members 12.
Gland 9 lower end is stretched in annular space, and upper end stretches out valve gap 1 upper end and pressing plate 10 is withstood at top.
Upper and lower stuffing box packing is isolated by disrance sleeve 6 by the utility model, coordinates the elastic performance of spring cylinder when pressing plate 10 presses down simultaneously, ensures the tight property of stuffing box packing, improves sealability, extends the working life of valve.

Claims (2)

1. an one-way valve valve gap and valve rod flexible sealing structure, comprise valve gap, valve rod is slidably fitted with in valve gap, annular space is provided with between the upper semisection of valve gap and valve rod, it is characterized in that: in described annular space, liner, lower spring cylinder, graphite packing, disrance sleeve, tetrafluoro filler, upper spring cylinder, Gland are installed from bottom to top successively, the top of Gland is provided with the pressing plate be sleeved on valve rod, pressing plate and described valve gap upper-end surface are fixed by Stud connection part, and the upper end outer wall of valve gap is also combined with nut lock gripping members.
2. one-way valve valve gap according to claim 1 and valve rod flexible sealing structure, is characterized in that: described Gland lower end is stretched in annular space, and upper end stretches out valve gap upper end and described pressing plate is withstood at top.
CN201520343541.4U 2015-05-25 2015-05-25 A kind of one-way valve valve gap and valve rod flexible sealing structure Expired - Fee Related CN204677879U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520343541.4U CN204677879U (en) 2015-05-25 2015-05-25 A kind of one-way valve valve gap and valve rod flexible sealing structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520343541.4U CN204677879U (en) 2015-05-25 2015-05-25 A kind of one-way valve valve gap and valve rod flexible sealing structure

Publications (1)

Publication Number Publication Date
CN204677879U true CN204677879U (en) 2015-09-30

Family

ID=54177571

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520343541.4U Expired - Fee Related CN204677879U (en) 2015-05-25 2015-05-25 A kind of one-way valve valve gap and valve rod flexible sealing structure

Country Status (1)

Country Link
CN (1) CN204677879U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104913107A (en) * 2015-05-25 2015-09-16 蚌埠南自仪表有限公司 Flexible sealing structure for valve deck and valve rod of one-way valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104913107A (en) * 2015-05-25 2015-09-16 蚌埠南自仪表有限公司 Flexible sealing structure for valve deck and valve rod of one-way valve

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Legal Events

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

Granted publication date: 20150930

Termination date: 20160525

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