CN109869489A - A kind of ventilation cutting valve group - Google Patents
A kind of ventilation cutting valve group Download PDFInfo
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- CN109869489A CN109869489A CN201910191818.9A CN201910191818A CN109869489A CN 109869489 A CN109869489 A CN 109869489A CN 201910191818 A CN201910191818 A CN 201910191818A CN 109869489 A CN109869489 A CN 109869489A
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- valve
- valve rod
- deck
- seal
- support frame
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Abstract
The invention discloses a kind of ventilations to cut off valve group, the public chamber that the cutting valve group includes multiple valve bodies being set side by side and is connected with each valve body, valve body includes valve casing, valve rod and valve rod support frame, the valve casing inner hollow forms valve chamber, a blow vent being connected with public chamber is provided at the top of valve casing, the first end of the valve rod passes through the blow vent and is connected with the first valve deck, first valve deck moves away from or covers blow vent with valve rod, and the second end of valve rod is connected through valve casing bottom with driving device；Valve rod support frame is set in stem outer circumference and is located in the valve chamber；Sealed support and seal assembly are provided on valve rod bracket.Advantage is: by the way that buffer spring is arranged between the first valve deck and the second valve deck, flexible seals being arranged in seal groove, mitigates damage of first valve deck to sealing, extends the service life of valve group；The setting of seal assembly also ensures the leakproofness between valve rod and valve rod support frame simultaneously, avoids the gas leak stored between the two.
Description
Technical field
The present invention relates to valve fields more particularly to a kind of ventilation to cut off valve group.
Background technique
With economic development, in the continuous improvement, working condition also becomes increasingly complex industrial automatic control level, thus
Requirement to the reliability, economy of stop valve in process control is also being continuously improved.Therefore, valve body structure also proposed
Higher requirement.
Packing seal, filler serious wear are mostly used at valve body and valve lever clearance, and replace filler trouble.Valve cover sealing
It is sealed using sealing ring, in the presence of easily corroding aging, especially corrosive gas.It is existing existing to cut off valve technology, generally at
This is higher.Therefore, it is very necessary to develop a kind of good and both economical stop valve of easy to use, sealing effect.
Summary of the invention
The purpose of the present invention is to provide a kind of ventilations to cut off valve group, to solve existing in the prior art aforementioned ask
Topic.
To achieve the goals above, The technical solution adopted by the invention is as follows:
A kind of ventilation cutting valve group, the cutting valve group includes multiple valve bodies being set side by side and the public affairs being connected with each valve body
Chamber altogether, the valve body include valve casing, valve rod and valve rod support frame, and the valve casing inner hollow forms valve chamber, the valve casing top
Portion is provided with a blow vent being connected with the public chamber, and the first end of the valve rod passes through the blow vent and the first valve deck
It is connected, first valve deck moves away from or cover the blow vent with the valve rod, and the second end of the valve rod is through described
Valve casing bottom is connected with driving device；The valve rod support frame is set in the stem outer circumference and is located in the valve chamber；It is described
Valve rod support frame close to one end of the blow vent inner circumferential side, be provided with the sealed support coaxial with the valve rod support frame,
The sealed support inner circumferential is provided with the seal assembly coaxial with the sealed support, the seal assembly internal perisporium and the valve
The corresponding fitting of the periphery wall of bar, the seal assembly top are provided with the compressing member coaxial with the seal assembly, the compression
The lower end of part and the upper end of the seal assembly fit closely.
Preferably, the seal assembly include the first seal being sequentially coaxially arranged from top to bottom, second seal and
Elastic component, the top and bottom of the elastic component contact fixation with the first seal and the second seal respectively.
Preferably, the top of the sealed support exceeds the upper surface of the valve rod support frame, and the sealed support top
The circumferential edge at end extends to form the first flanging along projecting radially outward for valve rod；The top of the compressing member exceeds described first
Horizontal plane where flanging, and the circumferential edge on the compressing member top extends to form along projecting radially outward for the valve rod
Two flangings, the upper-end contact of the lower end of the compressing member and the first seal, fastener is through first flanging, described
The sealed support, the compressing member are fixedly connected by the second flanging and the valve rod support frame with the valve rod support frame.
Preferably, the first end of the valve rod extends vertically through first valve deck and is fixedly connected with the second valve deck, and described
Two valve decks are parallel to the first valve deck setting, and first valve deck and second valve deck are coaxially disposed with the valve rod；
Several buffer springs are circumferentially provided with along the valve rod between first valve deck and second valve deck, the buffer spring
Both ends are fixedly connected with first valve deck and second valve deck respectively.
Preferably, it is provided with block piece on the valve rod, the block piece is arranged close to first valve deck described the
The lower section of one valve deck.
Preferably, it is circumferentially provided with annular sealing portion along the blow vent at the top of the valve casing, the sealing is described in
The extension protruding upward of the axis direction of valve rod, the circumferential edge of first valve deck are provided with ring-type corresponding with the sealing
Seal groove, the sealing correspondence protrude into the seal groove.
Preferably, flexible seals are provided in the seal groove.
The beneficial effects of the present invention are: the setting of 1, buffer spring can reduce the first valve deck during falling to valve
It is damaged caused by body, extends the service life of valve group.2, the seal assembly being arranged on valve rod support frame can effectively ensure that valve rod and valve
Gas between bar support frame is not revealed.3, the setting of seal assembly can effectively reduce close instead of traditional packing seal
Maintenance frequency at envelope, making valve group, the service life is longer, and the setting of elastic component can save part sealing material, more passes through
Ji.4, flexible seals are set in seal groove, can effectively enhance the leakproofness of the first valve deck and blow vent, increase valve group gas
Close property.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of stop valve in the embodiment of the present invention；
Fig. 2 is partial enlarged view at the A of Fig. 1 in the embodiment of the present invention；
Fig. 3 is partial enlarged view at the B of Fig. 1 in the embodiment of the present invention；
Fig. 4 is partial enlarged view at the C of Fig. 1 in the embodiment of the present invention；
Fig. 5 is partial enlarged view at the D of Fig. 1 in the embodiment of the present invention.
In figure: 1, valve casing；2, valve chamber；3, valve rod；4, valve rod support frame；5, sealed support；6, the first flanging；7, it compresses
Part；8, the second flanging；9, first seal；10, elastic component；11, second seal；12, the first valve deck；13, seal groove；14,
Second valve deck；15, buffer spring；16, block piece；17, fastener；18, blow vent；19, sealing；20, public chamber；21,
Driving device.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing, to the present invention into
Row is further described.It should be appreciated that the specific embodiments described herein are only used to explain the present invention, it is not used to
Limit the present invention.
As shown in Figures 1 to 5, the present invention provides a kind of ventilation cutting valve group, and the cutting valve group includes multiple setting side by side
The valve body set and the public chamber 20 being connected with each valve body, the valve body include valve casing 1, valve rod 3 and valve rod support frame 4, described
1 inner hollow of valve casing forms valve chamber 2, is provided with a blow vent 18 being connected with public chamber 20, the valve at the top of the valve casing 1
The first end of bar 3 passes through the blow vent 18 and is connected with the first valve deck 12, and first valve deck 12 is moved away from or covered with valve rod 3
The second end of lid blow vent 18, the valve rod 3 is connected through 1 bottom of valve casing with driving device 21；The valve rod support frame 4 is arranged
In 3 periphery of valve rod and it is located in the valve chamber 2；The inner circumferential side of the one end of the valve rod support frame 4 close to blow vent 18 is provided with
The coaxial sealed support 5 with the valve rod support frame 4,5 inner circumferential of sealed support are provided with coaxial with the sealed support 5
Seal assembly, the seal assembly internal perisporium fitting corresponding with the periphery wall of valve rod 3, the seal assembly top is provided with and institute
The coaxial compressing member 7 of seal assembly is stated, the lower end of the compressing member 7 and the upper end of the seal assembly fit closely.The cutting
Valve group can effectively realize flowing of the air-flow between each valve body and public chamber 20, adopt between valve rod 3 and valve rod support frame 4
It is sealed with seal assembly, replaces traditional packing seal, fundamentally avoid the trouble of filler abrasion and replacement filler.
Embodiment one
As shown in Fig. 2, the seal assembly includes the first seal being sequentially coaxially arranged from top to bottom in the present embodiment
9, second seal 11 and elastic component 10, the top and bottom of the elastic component 10 are sealed with first seal 9 and second respectively
The contact of part 11 is fixed.The lower end of the first seal 9 is fixedly connected with the upper end of elastic component 10, the lower end of the elastic component 10
It is fixedly connected with the upper end of second seal 11, so that three is formed seal assembly, first seal 9, elastic component 10 and second are close
Sealing 11 be independently arranged and be fixedly connected or three in one forming.
In the present embodiment, the top of the sealed support 5 exceeds the upper surface of the valve rod support frame 4, and the sealing
The circumferential edge on 5 top of bracket extends to form the first flanging 6 along projecting radially outward for valve rod 3；The top of the compressing member 7 is super
Horizontal plane where first flanging 6 out, and the circumferential edge on 7 top of the compressing member projects radially outward extension along valve rod 3
Form the second flanging 8, the lower end of the compressing member 7 and the upper-end contact of first seal 9, fastener 17 through the first flanging 6,
Sealed support 5, compressing member 7 are fixedly connected by the second flanging 8 and valve rod support frame 4 with valve rod support frame 4.Guarantee valve rod 3 and valve
The gas stored in the chamber formed between bar support frame 4 will not leak, and pollute the gas in valve chamber 2.
In the present embodiment, the setting of the seal assembly, can not only less maintenance time instead of traditional packing seal
Also there is good sealing to say effect, the gas between valve rod 3 and valve rod support frame 4 is effectively avoided to leak into valve chamber 2 for number
It is interior.Meanwhile the setting of compressing member 7 can make to fit closely between seal assembly and valve rod 3, further increase valve rod 3 and valve rod
Sealing performance between support frame 4 avoids the gas leak between valve rod 3 and valve rod support frame 4.
Embodiment two
As shown in Figure 3 to Figure 4, in the present embodiment, the first end of the valve rod 3 extends vertically through the first valve deck 12 and the second valve
Lid 14 is fixedly connected, and second valve deck 14 is parallel to the setting of the first valve deck 12, first valve deck 12 and second valve deck
14 are coaxially disposed with the valve rod 3；If being circumferentially provided between first valve deck 12 and the second valve deck 14 along the valve rod 3
Dry buffer spring 15, the both ends of the buffer spring 15 are fixedly connected with the first valve deck 12 and the second valve deck 14 respectively.Buffering elastic
The setting of spring 15 can make the first valve deck 12 will not be to 1 top of valve casing and seal groove 13 during to falling at the top of valve casing 1
Interior flexible sealing material generates biggish damage can be such that the first valve deck 12 slowly covers under the action of buffer spring 15
Lid blow vent 18 avoids clashing at the top of the first valve deck 12 and valve casing 1, makes the slow stress of sealing material, extend making for valve group
Use the service life.Fig. 3 is that valve body is in the open state, and Fig. 4 is that valve body is in closed state.
In the present embodiment, block piece 16 is provided on the valve rod 3, the block piece 16 is arranged close to the first valve deck 12
The setting of the lower section of first valve deck 12, block piece 16 can not only provide support to the first valve deck 12, also can be in the first valve deck
Limit the down position of the second valve deck 14 during 12 declines, guarantee the first valve deck 12 can efficiently away from or covering ventilate
Mouth 18.
In the present embodiment, blow vent 18, first valve deck 12 and the second valve deck 14 is completely covered in the public chamber 20
It is in public chamber 20.
Embodiment three
As shown in figure 5,1 top of valve casing is circumferentially provided with annular sealing portion along the blow vent 18 in the present embodiment
19, the sealing 19 along valve rod 3 axis direction extension protruding upward, the circumferential edge of first valve deck 12 be provided with
The corresponding annular seal pocket 13 of sealing 19, the correspondence of sealing 19 protrude into seal groove 13.When the first valve deck 12 is with valve rod 3
Move up, when far from blow vent 18, the sealing 19 is separated with seal groove 13, the gas in each valve body valve chamber 2 with it is public
Gas in chamber 20 swaps.
In the present embodiment, flexible seals are provided in the seal groove 13, when the correspondence of sealing 19 protrudes into seal groove 13
When interior, the flexible seals can be improved the sealing performance between sealing 19 and seal groove 13, guarantee the first valve deck 12 with
18 sealing performance between the two of blow vent, avoids gas from swapping.The setting of flexible seals can make first simultaneously
Valve deck 12 avoids hitting and causes to damage to valve body to when falling, the shock between the first valve deck 12 and valve casing 1 is weakened at blow vent 18
Evil, extends the service life of valve group.
In the present embodiment, the course of work of the valve group is as follows: as shown in figure 3,21 driving stem 3 of driving device is to moving up
Dynamic, valve rod 3 is mobile to drive the first valve deck 12 and the second valve deck 14 to move up, seal groove 13 and blow vent on the first valve deck 12
Sealing 19 at 18 is detached from, and blow vent 18 is opened, and the gas in public chamber 20 is swapped with the gas in valve chamber 2；Such as
Shown in Fig. 4, band ovable valve stem 3 moves down driving device 21 again, and the first valve deck 12 and the second valve deck 14 are with valve rod 3 to moving down
Dynamic, the first valve deck 12 correspondence is covered at blow vent 18, seal groove 13 and the corresponding engaging of sealing 19, the sealing in seal groove 13
Material can be such that the cooperation between seal groove 13 and sealing 19 is more bonded, and guarantee leakproofness between the two, the first valve
Lid 12 stops valve body to swap with the gas in public chamber 20.
In the present embodiment, buffer spring 15 is during the first valve deck 12 is fallen after rise to blow vent 18, when the first valve deck 12
When contacting with valve casing 1, buffer spring 15 provides a cushion effect to the first valve deck 12, guarantees that the first valve deck 12 can be stable covers
It covers at blow vent 18, the first valve deck 12 is made not hit the flexible sealing material in valve casing 1 and seal groove 13 when moving down,
The damage of the first valve deck 12, the second valve deck 14 and valve casing 1 is caused, while extending the service life of valve group.
In the present embodiment, when in use, multiple valve bodies are set side by side the valve group, seamless between each valve body, when each valve
When ventilation opening on body is opened, gas exchanges can be carried out between valve chamber 2 and valve chamber 2, between valve chamber 2 and public chamber 20 also into
Row gas exchanges realize the gas exchanges between multiple valve bodies and public chamber 20.
By using above-mentioned technical proposal disclosed by the invention, following beneficial effect has been obtained:
The present invention is replaced traditional packing seal using seal assembly, not only dropped by providing a kind of ventilation cutting valve group
The low maintenance frequency of valve group, also extends the service life of valve group；It can be effectively reduced the first valve by the way that buffer spring is arranged
Impact force between lid and valve casing extends the valve body service life, also reduces noise when separate the first valve deck or covering blow vent；Together
When seal assembly in elastic component setting other than it can save part sealing material, first seal and second seal have few
When amount damage, it still can be used, increase economic efficiency under the action of the elastic member.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
Depending on protection scope of the present invention.
Claims (7)
1. valve group is cut off in a kind of ventilation, it is characterised in that: the cutting valve group include multiple valve bodies being set side by side and with each valve
The connected public chamber of body, the valve body include valve casing, valve rod and valve rod support frame, and the valve casing inner hollow forms valve chamber,
A blow vent being connected with the public chamber is provided at the top of the valve casing, the first end of the valve rod passes through the blow vent
It is connected with the first valve deck, first valve deck moves away from or covers the blow vent with the valve rod, and the second of the valve rod
End is connected through the valve casing bottom with driving device；The valve rod support frame is set in the stem outer circumference and is located at described
In valve chamber；The inner circumferential side of the one end of the valve rod support frame close to the blow vent, be provided with it is coaxial with the valve rod support frame
Sealed support, the sealed support inner circumferential is provided with the seal assembly coaxial with the sealed support, in the seal assembly
Peripheral wall fitting corresponding with the periphery wall of the valve rod, the seal assembly top are provided with the compression coaxial with the seal assembly
Part, the lower end of the compressing member and the upper end of the seal assembly fit closely.
2. valve group is cut off in ventilation according to claim 1, it is characterised in that: the seal assembly includes from top to bottom successively
First seal, second seal and the elastic component of coaxial arrangement, the top and bottom of the elastic component are respectively with described first
Sealing element and second seal contact are fixed.
3. valve group is cut off in ventilation according to claim 2, it is characterised in that: the top of the sealed support exceeds the valve
The upper surface of bar support frame, and the circumferential edge on the sealed support top extends to form first along projecting radially outward for valve rod
Flanging；The top of the compressing member exceeds the horizontal plane where first flanging, and the circumferential edge on the compressing member top
The second flanging is extended to form along projecting radially outward for the valve rod, the lower end of the compressing member is upper with the first seal
End in contact, fastener runs through first flanging, second flanging and the valve rod support frame, by the sealed support, institute
Compressing member is stated to be fixedly connected with the valve rod support frame.
4. valve group is cut off in ventilation according to claim 1, it is characterised in that: the first end of the valve rod extends vertically through described
First valve deck is fixedly connected with the second valve deck, and second valve deck is parallel to first valve deck setting, first valve deck and
Second valve deck is coaxially disposed with the valve rod；It is circumferential along the valve rod between first valve deck and second valve deck
Several buffer springs are provided with, the both ends of the buffer spring are fixed with first valve deck and second valve deck respectively to be connected
It connects.
5. valve group is cut off in ventilation according to claim 4, it is characterised in that: block piece is provided on the valve rod, it is described
The lower section of first valve deck is arranged in close to first valve deck for block piece.
6. valve group is cut off in ventilation according to claim 1, it is characterised in that: circumferential along the blow vent at the top of the valve casing
It is provided with annular sealing portion, axis direction protruding upward extension of the sealing along the valve rod, the week of first valve deck
Edge is provided with annular seal pocket corresponding with the sealing, the sealing correspondence protrudes into the seal groove.
7. valve group is cut off in ventilation according to claim 6, it is characterised in that: be provided with flexible sealing in the seal groove
Part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910191818.9A CN109869489B (en) | 2019-03-14 | 2019-03-14 | Ventilation cut-off valve group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910191818.9A CN109869489B (en) | 2019-03-14 | 2019-03-14 | Ventilation cut-off valve group |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109869489A true CN109869489A (en) | 2019-06-11 |
| CN109869489B CN109869489B (en) | 2021-03-05 |
Family
ID=66920536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910191818.9A Active CN109869489B (en) | 2019-03-14 | 2019-03-14 | Ventilation cut-off valve group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109869489B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3834662A (en) * | 1972-05-31 | 1974-09-10 | American Air Filter Co | Damper |
| CN2039777U (en) * | 1988-09-23 | 1989-06-21 | 刘文成 | All sealing valve |
| CN2648219Y (en) * | 2003-09-08 | 2004-10-13 | 洪元生 | Spring type valve rod sealing structure |
| CN201507657U (en) * | 2009-08-17 | 2010-06-16 | 江苏亿金环保设备工程有限公司 | Bypass valve |
| CN203297635U (en) * | 2013-06-09 | 2013-11-20 | 中国能建集团装备有限公司北京技术中心 | Lifting-type fully-sealed valve |
| CN206369001U (en) * | 2016-12-26 | 2017-08-01 | 佛山市三叶环保设备工程有限公司 | Lower sealing stage valve built in a kind of sack cleaner |
| CN107339469A (en) * | 2017-08-14 | 2017-11-10 | 维珂瑞（北京）环境科技有限公司 | A kind of non-maintaining type multi-cavity type cuts off valve group |
-
2019
- 2019-03-14 CN CN201910191818.9A patent/CN109869489B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3834662A (en) * | 1972-05-31 | 1974-09-10 | American Air Filter Co | Damper |
| CN2039777U (en) * | 1988-09-23 | 1989-06-21 | 刘文成 | All sealing valve |
| CN2648219Y (en) * | 2003-09-08 | 2004-10-13 | 洪元生 | Spring type valve rod sealing structure |
| CN201507657U (en) * | 2009-08-17 | 2010-06-16 | 江苏亿金环保设备工程有限公司 | Bypass valve |
| CN203297635U (en) * | 2013-06-09 | 2013-11-20 | 中国能建集团装备有限公司北京技术中心 | Lifting-type fully-sealed valve |
| CN206369001U (en) * | 2016-12-26 | 2017-08-01 | 佛山市三叶环保设备工程有限公司 | Lower sealing stage valve built in a kind of sack cleaner |
| CN107339469A (en) * | 2017-08-14 | 2017-11-10 | 维珂瑞（北京）环境科技有限公司 | A kind of non-maintaining type multi-cavity type cuts off valve group |
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| Publication number | Publication date |
|---|---|
| CN109869489B (en) | 2021-03-05 |
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