CN2360687Y - Self-compensating parallel double-flashboard sluice valve - Google Patents

Self-compensating parallel double-flashboard sluice valve Download PDF

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Publication number
CN2360687Y
CN2360687Y CN 98247219 CN98247219U CN2360687Y CN 2360687 Y CN2360687 Y CN 2360687Y CN 98247219 CN98247219 CN 98247219 CN 98247219 U CN98247219 U CN 98247219U CN 2360687 Y CN2360687 Y CN 2360687Y
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CN
China
Prior art keywords
valve
plates
plate
utility
self
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
CN 98247219
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Chinese (zh)
Inventor
张江风
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.)
PETROCHENICAL GENERAL MACHINERY PLANT YONGJIA COUNTY
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PETROCHENICAL GENERAL MACHINERY PLANT YONGJIA COUNTY
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Application filed by PETROCHENICAL GENERAL MACHINERY PLANT YONGJIA COUNTY filed Critical PETROCHENICAL GENERAL MACHINERY PLANT YONGJIA COUNTY
Priority to CN 98247219 priority Critical patent/CN2360687Y/en
Application granted granted Critical
Publication of CN2360687Y publication Critical patent/CN2360687Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a self-compensating parallel double-sluice board sluice valve, which comprises a valve body, valve plates, a valve rod, and a valve cover. The utility model is characterized in that the two valve plates are movably matched with a connecting frame fixed on the valve rod; the valve plates can rotate in circumference direction in the process of the start and stop of the valve; the sealing surfaces of the valve plates are evenly worn; simultaneously, a spring is arranged between two valve plates so as to automatically compensate the wearing of the sealing surfaces of the valve plates. The utility model enhances the sealing performance of the valve, extends service life, and is very suitable for pipelines of petroleum industry, chemical engineering industry, etc.

Description

The self compensation double disk parallel gate valve
The utility model relates to a kind of gate valve, particularly a kind of double disk parallel gate valve.
Common plate valve sealing surface wear in opening-closing process is bigger, and valve is after using after a while, and sealability will obviously reduce.For this reason, China Patent No. is 95226065.4 plate valve, a kind of plate valve of extruding/shrinking type structure has been proposed, the i.e. flashboard back brace tightening seal that puts in place earlier in the valve closing process, flashboard unclamps the back lifting with sealing seat earlier in the valve opening process, realize not having friction and open and close, reduced the wearing and tearing between flashboard and the sealing seat effectively.But this extruding/shrinking type plate valve, when closing, can't remove the thing of being stained with on the sealing surface, its flashboard and sealing surface of seat contact position are also fixed, so the impurity in the medium easily makes sealing surface wear, and can't be compensated, thereby sealability is descended, and leak, influence valve working life.
The purpose of this utility model can compensate after providing a kind of sealing surface wear automatically, and sealability is reliable, the double disk parallel gate valve of long service life.
The technical solution of the utility model comprises valve body, valve plate, valve rod, valve gap, Sealing and assembling set, and valve rod is connected with two valve plates by link press span.Two valve plates connect movingly with the circular hole that is connected at link press span center, between two valve plates spring are housed, and the edge is provided with axially stop block.
The beneficial effects of the utility model are that valve plate can rotate by circumferencial direction in opening-closing process, make valve plate in opening-closing process, at first contact valve body sealing surface by the minimum place of wear extent all the time, the uniform wear that keeps sealing surface of valve plate, simultaneously compress valve plate and valve seal face seal by spring force, guarantee sealing reliability, prolong valve working life.
Fig. 1 is a structural representation of the present utility model.
Now describe embodiment of the present utility model in conjunction with the accompanying drawings in detail.
Gate valve as shown in Figure 1 comprises valve body 1, valve rod 9, valve plate 5,7, valve gap 17, and valve plate 5,7 is connected with valve rod 9 by link press span 4, and valve gap 17 is fixedlyed connected with nut 11 by bolt 10 with valve body 1.Between valve gap 17 and valve rod 9, Graphite pad 12 is housed, and compresses by hanging bolt 14, pin 13 and nut 16 by Gland 15.
Link press span 4 centers are shaped on a circular hole, are fixedlyed connected with valve rod 9 by nut 18, pin 19 in the upper end.
Valve plate 5,7 is circular, and circumferential edges has a ring-shaped step, and itself and valve body 1 sealing surface contacting side are the plane, and the opposite side center has the hollow cylinder of protrusion respectively.Wherein the outer wall of valve plate 5 hollow cylinders and link press span 4 center holes movingly, the inwall of the outer wall of another piece valve plate 7 hollow cylinders and valve plate 5 hollow cylinders is movingly.A spring 6 is housed in the hollow cylinder at two valve plates, 5,7 centers.
Symmetry is equipped with a pair of positioning plate 3,8 on the link press span 4.Positioning plate 3 is fixed on the link press span 4 of two valve plates, 5,7 lower ends by bolt 2, and positioning plate 8 is fitted on the link press span 4 together with valve rod 9 by nut 18.Two positioning plates 3,8 are U-shaped, and its U-shaped opening side is imbedded on the ring-shaped step of two valve plates, 5,7 circumferential edges during installation, and when the valve closing state and the table top retention gap distance of ring-shaped step.

Claims (2)

1, a kind of self compensation double disk parallel gate valve, comprise valve body, valve plate, valve rod, valve gap, Sealing and assembling set, valve rod is connected with two valve plates by link press span, it is characterized in that described valve plate (5,7) connects movingly with the circular hole that is connected at link press span (4) center; Between two valve plates (5,7), spring (6) is housed; Valve plate (5,7) is provided with axially stop block.
2, self compensation double disk parallel gate valve according to claim 1 is characterized in that described axially stop block is made of the positioning plate (3,8) that is fixed on the link press span (4).
CN 98247219 1998-12-06 1998-12-06 Self-compensating parallel double-flashboard sluice valve Expired - Fee Related CN2360687Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 98247219 CN2360687Y (en) 1998-12-06 1998-12-06 Self-compensating parallel double-flashboard sluice valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 98247219 CN2360687Y (en) 1998-12-06 1998-12-06 Self-compensating parallel double-flashboard sluice valve

Publications (1)

Publication Number Publication Date
CN2360687Y true CN2360687Y (en) 2000-01-26

Family

ID=33992485

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 98247219 Expired - Fee Related CN2360687Y (en) 1998-12-06 1998-12-06 Self-compensating parallel double-flashboard sluice valve

Country Status (1)

Country Link
CN (1) CN2360687Y (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100455856C (en) * 2007-04-02 2009-01-28 石家庄阀门一厂股份有限公司 Automatically compensating clamping sealing device of glasses valve
CN104100728A (en) * 2014-08-07 2014-10-15 郑子叶 Self-sealing gate valve
CN104428567A (en) * 2012-05-30 2015-03-18 Ksb股份公司 Gate valve
CN108298289A (en) * 2017-01-13 2018-07-20 中联重科股份有限公司 Valve device and material conveying system
CN109185469A (en) * 2018-10-10 2019-01-11 中冶南方工程技术有限公司 The self-locking two way seal gate valve of energy
CN110630763A (en) * 2019-10-25 2019-12-31 沪航科技集团有限公司 Novel sandwich valve

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100455856C (en) * 2007-04-02 2009-01-28 石家庄阀门一厂股份有限公司 Automatically compensating clamping sealing device of glasses valve
CN104428567A (en) * 2012-05-30 2015-03-18 Ksb股份公司 Gate valve
CN104428567B (en) * 2012-05-30 2016-08-24 Ksb股份公司 Gate valve
CN104100728A (en) * 2014-08-07 2014-10-15 郑子叶 Self-sealing gate valve
CN108298289A (en) * 2017-01-13 2018-07-20 中联重科股份有限公司 Valve device and material conveying system
CN108298289B (en) * 2017-01-13 2019-08-02 中联重科股份有限公司 Valve device and material conveying system
CN109185469A (en) * 2018-10-10 2019-01-11 中冶南方工程技术有限公司 The self-locking two way seal gate valve of energy
CN110630763A (en) * 2019-10-25 2019-12-31 沪航科技集团有限公司 Novel sandwich valve

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C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee