CN204025716U - Sealed type stop valve - Google Patents

Sealed type stop valve Download PDF

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Publication number
CN204025716U
CN204025716U CN201420479466.XU CN201420479466U CN204025716U CN 204025716 U CN204025716 U CN 204025716U CN 201420479466 U CN201420479466 U CN 201420479466U CN 204025716 U CN204025716 U CN 204025716U
Authority
CN
China
Prior art keywords
flap
metallic packing
packing ring
ring
ring groove
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
CN201420479466.XU
Other languages
Chinese (zh)
Inventor
王忠芳
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.)
WENZHOU SHIHUA MECHANICAL VALVE Co Ltd
Original Assignee
WENZHOU SHIHUA MECHANICAL 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 WENZHOU SHIHUA MECHANICAL VALVE Co Ltd filed Critical WENZHOU SHIHUA MECHANICAL VALVE Co Ltd
Priority to CN201420479466.XU priority Critical patent/CN204025716U/en
Application granted granted Critical
Publication of CN204025716U publication Critical patent/CN204025716U/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 sealed type stop valve, comprise valve body, valve rod and flap, in described valve body, be provided with inlet passage and outlet passage, on valve body, be also provided with the control valve port that is communicated with inlet passage and outlet passage, outside at described control valve port is provided with concave ring groove, in described concave ring groove, be provided with metallic packing ring, between described metallic packing ring and the bottom of described concave ring groove, be provided with damping spring, on described flap, be provided with pressure ring, top center at described metallic packing ring is provided with rubber gasket, the pressure ring of described flap is pressed on described rubber gasket and compresses metallic packing ring contracting damping spring downwards.Of the present utility model simple in structure, convenient to use, be not easy the rubber gasket that weares and teares, can effectively improve the working life of rubber gasket, make the bottom of rubber gasket and flap closely sealed by the reposition force of damping spring simultaneously, its good seal performance and long service life, applicability is good, practical.

Description

Sealed type stop valve
Technical field
The utility model belongs to stop valve technical field, is specifically related to a kind of sealed type stop valve.
Background technique
The open-shut device of stop valve is the flap of stopper, sealing surface is plane or the conical surface, flap is along the center line moving linearly of valve seat, the forms of motion of valve rod adopts lifting rotation rod-type mostly, because valve rod unlatching or the shutoff stroke of stop valve are relatively short, there is cutting function very reliably simultaneously, again due to the variation of valve seat port and the stroke of flap relation in direct ratio, so make stop valve be applicable to very much the adjusting to flow, but in the stop valve of prior art, sealability between flap and valve seat is lower, easily there is the situation of leaking, and then affect working life of stop valve, in order to solve the problems of the technologies described above, China Patent Publication No. is 203384393 to disclose a kind of stop valve, it is mainly that the end face of flap is arranged to dovetail groove, rubber or polytetrafluoroethylmaterial material Sealing are installed in dovetail groove, Sealing is contacted with valve body and then reach the object of sealing, although it can reduce the sealability of flap to a certain extent, but because flap needs regular action, so in actual use, through there will be sealing part abrasion and then causing leakage, the object in the raising working life that is difficult to reach desirable, applicability is affected to a certain extent.
Summary of the invention
The purpose of this utility model is to provide a kind of simple in structure, the sealed type stop valve of good seal performance and long service life.
The technological scheme that realizes the utility model object is a kind of sealed type stop valve, comprise valve body, valve rod and flap, described valve rod penetrates valve body, described flap is fixed on the lower end of valve rod, in described valve body, be provided with inlet passage and outlet passage, on valve body, be also provided with the control valve port that is communicated with inlet passage and outlet passage, described flap matches with described control valve port, outside at described control valve port is provided with concave ring groove, in described concave ring groove, be provided with metallic packing ring, between described metallic packing ring and the bottom of described concave ring groove, be provided with damping spring, on described flap, be provided with pressure ring, the diameter of described pressure ring is greater than the diameter of flap and identical with the diameter of described concave ring groove, in the time that pressure ring does not compress metallic packing ring, the end face of described metallic packing ring is arranged in concave ring groove higher than the bottom surface of described concave ring groove setting and metallic packing ring, top center at described metallic packing ring is provided with rubber gasket, the pressure ring of described flap is pressed on described rubber gasket and compresses metallic packing ring contracting damping spring downwards.
Be provided with caulking gum layer in the bottom of described concave ring groove, the bottom of described damping spring is arranged in caulking gum layer and described metallic packing ring activity is pressed on caulking gum layer.
Between described concave ring groove and described metallic packing ring, be provided with proof rubber layer.
Its working principle is summarized as follows: in use, move down valve rod, valve rod is moved linearly downwards, and make gradually flap be pressed on metallic packing ring, can to press down gradually damping spring simultaneously, until the control valve port of flap butt valve body, now realize sealing by the extruding force between flap and metallic packing ring, on metallic packing ring, be provided with rubber gasket simultaneously, therefore flap is meeting compressing rubber seal washer in extrusion metal seal ring, because flap is by downward compressing rubber seal washer, rubber gasket and metallic packing ring can't wear and tear, in reaching sealing, be not easy to damage sealing configuration, can effectively improve the working life of rubber gasket.
The utlity model has positive effect: of the present utility model simple in structure, convenient to use, adopt metallic packing ring and damping spring to realize sealing, flap is by downward extrusion metal seal ring simultaneously, therefore in use can't wear metal seal ring, on metallic packing ring, be provided with rubber gasket simultaneously, owing to being downward extruding, also be not easy the rubber gasket that weares and teares, can effectively improve the working life of rubber gasket, make the bottom of rubber gasket and flap closely sealed by the reposition force of damping spring simultaneously, its good seal performance and long service life, applicability is good, practical, be provided with caulking gum layer in the bottom of concave ring groove, can effectively prevent that liquid from circulating from concave ring groove, effectively raises sealability simultaneously.
Brief description of the drawings
For content of the present utility model is more likely to be clearly understood, according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail below, wherein:
Fig. 1 is structural representation of the present utility model.
Embodiment
(embodiment 1)
Fig. 1 has shown a kind of embodiment of the present utility model, and wherein Fig. 1 is structural representation of the present utility model.
See Fig. 1, a kind of sealed type stop valve, comprise valve body 1, valve rod 2 and flap 3, described valve rod 2 penetrates valve body 1, described flap 3 is fixed on the lower end of valve rod 2, in described valve body 1, be provided with inlet passage 4 and outlet passage 5, on valve body 1, be also provided with the control valve port 6 that is communicated with inlet passage 4 and outlet passage 5, described flap 3 matches with described control valve port 5, be provided with concave ring groove 7 in the outside of described control valve port 5, in described concave ring groove 7, be provided with metallic packing ring 8, between described metallic packing ring 8 and the bottom of described concave ring groove 7, be provided with damping spring 9, on described flap 3, be provided with pressure ring 10, the diameter of described pressure ring 10 is greater than the diameter of flap 3 and identical with the diameter of described concave ring groove 7, in the time that pressure ring 10 does not compress metallic packing ring 8, the end face of described metallic packing ring 8 arranges higher than described concave ring groove 7 and the bottom surface of metallic packing ring 8 is arranged in concave ring groove 7, be provided with rubber gasket 11 in the top center of described metallic packing ring 8, the pressure ring 10 of described flap 3 is pressed on described rubber gasket 11 and compresses metallic packing ring 8 contracting damping spring 9 downwards.
Be provided with caulking gum layer 12 in the bottom of described concave ring groove 7, the bottom of described damping spring 9 is arranged in caulking gum layer 12 and described metallic packing ring 8 activities are pressed on caulking gum layer 12.
Between described concave ring groove 7 and described metallic packing ring 8, be provided with proof rubber layer 13.It can increase as required or not increase.
Its working principle is summarized as follows: in use, move down valve rod, valve rod is moved linearly downwards, and make gradually flap be pressed on metallic packing ring, can to press down gradually damping spring simultaneously, until the control valve port of flap butt valve body, now realize sealing by the extruding force between flap and metallic packing ring, on metallic packing ring, be provided with rubber gasket simultaneously, therefore flap is meeting compressing rubber seal washer in extrusion metal seal ring, because flap is by downward compressing rubber seal washer, rubber gasket and metallic packing ring can't wear and tear, in reaching sealing, be not easy to damage sealing configuration, can effectively improve the working life of rubber gasket.
Obviously, above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to mode of execution of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also giving exhaustive to all mode of executions.And these belong to apparent variation or the variation that connotation of the present utility model extends out and still belong to protection domain of the present utility model.

Claims (3)

1. a sealed type stop valve, comprise valve body, valve rod and flap, described valve rod penetrates valve body, described flap is fixed on the lower end of valve rod, in described valve body, be provided with inlet passage and outlet passage, on valve body, be also provided with the control valve port that is communicated with inlet passage and outlet passage, described flap matches with described control valve port, it is characterized in that: the outside at described control valve port is provided with concave ring groove, in described concave ring groove, be provided with metallic packing ring, between described metallic packing ring and the bottom of described concave ring groove, be provided with damping spring, on described flap, be provided with pressure ring, the diameter of described pressure ring is greater than the diameter of flap and identical with the diameter of described concave ring groove, in the time that pressure ring does not compress metallic packing ring, the end face of described metallic packing ring is arranged in concave ring groove higher than the bottom surface of described concave ring groove setting and metallic packing ring, top center at described metallic packing ring is provided with rubber gasket, the pressure ring of described flap is pressed on described rubber gasket and compresses metallic packing ring contracting damping spring downwards.
2. sealed type stop valve according to claim 1, is characterized in that: be provided with caulking gum layer in the bottom of described concave ring groove, the bottom of described damping spring is arranged in caulking gum layer and described metallic packing ring activity is pressed on caulking gum layer.
3. sealed type stop valve according to claim 2, is characterized in that: between described concave ring groove and described metallic packing ring, be provided with proof rubber layer.
CN201420479466.XU 2014-08-18 2014-08-18 Sealed type stop valve Expired - Fee Related CN204025716U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420479466.XU CN204025716U (en) 2014-08-18 2014-08-18 Sealed type stop valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420479466.XU CN204025716U (en) 2014-08-18 2014-08-18 Sealed type stop valve

Publications (1)

Publication Number Publication Date
CN204025716U true CN204025716U (en) 2014-12-17

Family

ID=52065584

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420479466.XU Expired - Fee Related CN204025716U (en) 2014-08-18 2014-08-18 Sealed type stop valve

Country Status (1)

Country Link
CN (1) CN204025716U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106382411A (en) * 2016-10-12 2017-02-08 诸暨市亿霸电子阀门有限公司 Sealing structure for valve rod assembly and sealing method of sealing structure
CN108317293A (en) * 2018-01-19 2018-07-24 浙江大学 A kind of adjustable water hammer protective device of hydraulic pipeline
CN109469753A (en) * 2018-12-07 2019-03-15 四川格林流体控制设备有限公司 A kind of safe bottom valve of LNG peculiar to vessel
CN111059302A (en) * 2020-01-16 2020-04-24 山东超力阀门制造有限公司 Stamping-resistant sealing stop valve

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106382411A (en) * 2016-10-12 2017-02-08 诸暨市亿霸电子阀门有限公司 Sealing structure for valve rod assembly and sealing method of sealing structure
CN108317293A (en) * 2018-01-19 2018-07-24 浙江大学 A kind of adjustable water hammer protective device of hydraulic pipeline
CN109469753A (en) * 2018-12-07 2019-03-15 四川格林流体控制设备有限公司 A kind of safe bottom valve of LNG peculiar to vessel
CN111059302A (en) * 2020-01-16 2020-04-24 山东超力阀门制造有限公司 Stamping-resistant sealing stop 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
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141217

Termination date: 20160818