CN110345263A - A kind of Pneumatic two-position cut-off valve - Google Patents
A kind of Pneumatic two-position cut-off valve Download PDFInfo
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- CN110345263A CN110345263A CN201910664329.0A CN201910664329A CN110345263A CN 110345263 A CN110345263 A CN 110345263A CN 201910664329 A CN201910664329 A CN 201910664329A CN 110345263 A CN110345263 A CN 110345263A
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- Prior art keywords
- valve
- piston
- valve body
- ring
- spacer
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
- F16K31/1221—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston one side of the piston being spring-loaded
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0008—Mechanical means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The invention discloses a kind of Pneumatic two-position cut-off valves, it is related to valve technology field, it solves the problems, such as pneumatic cut-off valve open type in the prior art and normally closed property components is more so that processing and management cost increase, it is characterized in that: including valve body, it is equipped in valve body and uses valve rod, valve rod is equipped with the seal assembly for sealed valve body fluid inlet and fluid outlet in valve body, piston is installed at the top of valve rod, piston is fixed on valve rod by piston blot, it is covered with bonnet, on the outside of piston, is tightly connected between piston and bonnet,；Bonnet, is fixedly connected on valve body by piston seat and gland；And it is equipped between piston and piston seat for providing the reset spring of closing force；The present invention is located at the different location of valve rod by the seal assembly for forming sealing ring, spacer ring and sealing nut, allows open type stop valve and normally closed property cutting valve member general, to reduce the processing cost and management cost of stop valve.
Description
Technical field
The present invention relates to valve technology field more particularly to a kind of Pneumatic two-position cut-off valves.
Background technique
Stop valve is one kind of executing agency in automated system, by multiple springs pneumatic diaphragn actuating mechanism or floating type work
It fills in executing agency and regulating valve forms, receive the signal of regulation meter, control the cutting of fluid in process pipe, connect or cut
It changes.It is simple with structure, it is quick on the draw, the features such as reliable in action.It is raw that the industry such as petroleum, chemical industry, metallurgy can be widely used in
Production department.The gas source of pneumatic cut-off valve requires filtered compressed air, and flowing through the intracorporal medium of valve should be free from admixture and nothing
The liquid of particle is gentle.
As depicted in figs. 1 and 2, when closed type stop valve fluid inlet and fluid outlet are used interchangeably in the prior art, valve
Core stress is different, and when control bleed pressure is constant, fluid inlet and fluid outlet cannot be used interchangeably；Fluid pressure is bigger, valve
Core stress is bigger, and when control bleed pressure is constant, cylinder bore is bigger, and valve volume is big, weight is big, at high cost；The prior art
Middle closed type stop valve controls gas source and enters from upper end, and open type stop valve controls gas source and enters from lower end, open type stop valve
Components different with normally closed property stop valve are more, are not suitable for the standardized construcion of enterprises part, are processed into increase
This, and user's spare part type increases, and increases the cost of enterprise's spare parts management, and therefore, we have proposed a kind of Pneumatic two-positions
Stop valve.
Summary of the invention
The technical problem to be solved by the present invention is in view of the foregoing drawbacks, provide a kind of Pneumatic two-position cut-off valve, including valve body,
It is equipped with including valve body, in valve body and uses valve rod, valve rod is equipped with for the close of sealed valve body fluid inlet and fluid outlet in valve body
Sealing assembly, the piston for cooperating air source control valve lever switch is equipped at the top of valve rod, and piston is fixed on by piston blot
On valve rod, it is covered with bonnet, on the outside of piston, is tightly connected between piston and bonnet, bonnet, is solid by piston seat and gland
Surely it is connected on valve body；It is characterized in that, the lower end of valve rod, which is equipped with, plays balanced fluid to the balancing pole of the pressure of spool, balance
Bar is connect with valve body slides；Pressure ring, combined seal ring and spacer, and pressure ring, combination sealing are additionally provided between balancing pole and valve body
Circle and spacer are fixed on valve body by bottom flange, and dustband is equipped between bottom flange and balancing pole, and pressure ring is metal pressure ring, and
Upper end is equipped with the V-shaped groove cooperated with combined seal ring, and spacer is located between combined seal ring and guide ring, and spacer, which is equipped with, to be pre-tightened
Spring, it is more so that processing and management cost increase to solve pneumatic cut-off valve open type in the prior art and normally closed property components
The problem of.
To achieve the above object, the invention provides the following technical scheme:
A kind of Pneumatic two-position cut-off valve, including valve body, interior be equipped with of valve body use valve rod, and valve rod is equipped in valve body for sealing
The seal assembly of valve body fluid import and fluid outlet is equipped with the work for cooperating air source control valve lever switch at the top of valve rod
Plug, piston are fixed on valve rod by piston blot, and bonnet, is covered on the outside of piston, the company of sealing between piston and bonnet,
It connects, bonnet, is fixedly connected on valve body by piston seat and gland；It is characterized in that, the lower end of valve rod, which is equipped with, plays equiulbrium flow
Body connect the balancing pole of the pressure of spool, balancing pole with valve body slides；Be additionally provided between balancing pole and valve body pressure ring, combine it is close
Seal and spacer, and pressure ring, combined seal ring and spacer are fixed on valve body by bottom flange, are set between bottom flange and balancing pole
There is dustband, pressure ring is metal pressure ring, and upper end is equipped with the V-shaped groove cooperated with combined seal ring, and spacer is located at combined seal ring
Between guide ring, spacer is equipped with preloading spring.
As a further solution of the present invention, seal assembly is located at the fluid outlet of valve body.
As a further solution of the present invention, seal assembly is located at the fluid inlet of valve body.
As the present invention, further scheme, seal assembly include sealing ring, spacer ring and sealing nut, and sealing ring passes through
Spacer ring and sealing nut are fixed on valve rod.
As a further solution of the present invention, it is equipped between piston and piston seat for providing the reset spring of closing force.
As a further solution of the present invention, piston seat is endless metal seat, is step type, piston along the section of axis
It is connected through a screw thread between seat and bonnet, the upper end of gland is fastened on the lower end of piston seat, and gland is threadedly attached in valve
On body, piston seat is fixedly connected by screw thread pressing sleeve with gland, and the centre of screw thread pressing sleeve is equipped with baffle, and the lower end of screw thread pressing sleeve is logical
Screw thread is crossed to be fixedly connected with gland.
The combination sealing for sealing is equipped with as further scheme of the invention, between valve rod and piston seat and gland
Circle, the upper end of combined seal ring connects by pressure ring and dustband with gland, lower end pass through spacer, preloading spring and balancing pole and
Valve body connection, dustband are located between gland and pressure ring, and guide ring is fixedly connected with the valve body by interference fit, and spacer is located at group
It closes between sealing ring and guide ring, preloading spring is set in the outside of spacer.
As a further solution of the present invention, the inside of bonnet, is equipped with the indicating arm for observing forward piston stroke, instruction
Bar is located at the bottom of piston seat, and indicating arm is slidably connected with piston seat, and indicating arm return spring is arranged on indicating arm.
In conclusion compared with the prior art, the invention has the following beneficial effects:
1, the present invention is located at the different location of valve rod by the seal assembly for forming sealing ring, spacer ring and sealing nut,
So that open type stop valve and normally closed property stop valve difference are only valve rod, other component can be general, this set
Method increases the versatility of open type stop valve and normally closed property stop valve components, to reduce being processed into for stop valve
Sheet and management cost, compared with the existing technology, open type of the present invention is consistent with normally closed property valve thrust, reduces being designed to for later period
This, while fluid inlet of the present invention and fluid outlet may be used interchangeably, and increase the versatility of part.
2, balancing pole is connected on the piston rod of spool lower end of the present invention, all or part of balance eliminates spool stress, spool
The thrust of movement is reduced.When control bleed pressure is constant, cylinder bore reduces, and valve is small in size, light weight and cost is low；Spool
Flexible movements, sealing ring be hit power reduce, long service life
Detailed description of the invention
Fig. 1 is the structural schematic diagram of closed type Pneumatic two-position cut-off valve in the prior art.
Fig. 2 is the structural schematic diagram of open type Pneumatic two-position cut-off valve in the prior art.
Fig. 3 is the structural schematic diagram of closed type Pneumatic two-position cut-off valve of the present invention.
Fig. 4 is the structural schematic diagram of open type Pneumatic two-position cut-off valve of the present invention.
Appended drawing reference: 1- bonnet, 2- piston, 3- bridge screw, 4- pressing plate, 5-V shape sealing ring, 6- piston blot, 7-
Rectangular loop, 8- reset spring, 9- valve rod, 10- piston seat, 11- screw thread pressing sleeve, 12- gland, 13- dustband, 14- pressure ring, 15-
Combined seal ring, 16- spacer, 17- preloading spring, 18- valve body, 19- sealing ring, 20- spacer ring, 21- sealing nut, 22- balance
Bar, 23- guide ring, 24- bottom flange, 25- indicating arm, 26- indicating arm return spring.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments, is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
As shown in Figure 3, a kind of Pneumatic two-position cut-off valve belongs to normally closed property stop valve, including valve body 18, is equipped in valve body 18
With valve rod 9, valve rod 9 is equipped with the sealing ring 19 for sealing fluid inlet and fluid outlet in the fluid outlet of valve body 18, close
Seal 19 is fixed on valve rod 9 by spacer ring 20 and sealing nut 21, and the top of valve rod 9 is equipped with for cooperating air source control valve
The piston 2 that bar 9 switchs, piston 2 are fixed on valve rod 9 by piston blot 6, and the outside of piston 2 is covered with bonnet, 1, piston 2 with
It is tightly connected between bonnet, 1；Bonnet, 1 is fixedly connected on valve body 18 by piston seat 10 and gland 12, valve rod 9 and piston
It is equipped with the combined seal ring 15 for sealing between seat 10 and gland 12, and is equipped between piston 2 and piston seat 10 for providing
The reset spring 8 of closing force；
Valve body 18 is that shut-off valve body, the both ends of valve body 18 are equipped with the flange face for connecting pipe in the prior art, this
In embodiment, flange face is standard flange in the prior art；
The lower end of valve rod 9 is equipped with the balancing pole 22 for playing guiding role, and balancing pole 22 is fixedly connected with valve rod 9, and balances
Bar 22 is slidably connected with valve body 18, and the place that valve rod 9 is connect with balancing pole 22 is equipped with T forming head, and T forming head, which is stuck in, is located at balancing pole 22
On T-slot in；
Further, it in order to reduce the frictional force between balancing pole 22 and valve body 18, is set between balancing pole 22 and valve body 18
There is guide ring 23, guide ring 23 is set on balancing pole 22, and guide ring 23 and valve body 18 pass through interference fit connection；
Preferably, in order to prevent at guide ring 23 leak, be additionally provided between balancing pole 22 and valve body 18 pressure ring 14, combine it is close
Seal 15 and spacer 16, and pressure ring 14, combined seal ring 15 and spacer 16 are fixed on valve body 18 by bottom flange 24, bottom flange
24 be the intermediate nut for being equipped with through-hole, through-hole the passing through for balancing pole 22 among bottom flange 24, when so that opening stop valve,
Balancing pole 22 has protrusions space, and dustband 13 is equipped between bottom flange 24 and balancing pole 22, for sealing and balancing bar 22 under
Valve deck 24, prevents dust from entering, and pressure ring 14 is metal pressure ring, and upper end is equipped with the V-shaped groove cooperated with combined seal ring 15, combination
Sealing ring 15 is formed by several V-shaped seal ring stack combinations, and for increasing leakproofness, spacer 16 is located at combined seal ring 15 and leads
To between ring 23, spacer 16 is equipped with preloading spring 17, and preloading spring 17 increases combination sealing for compressing combined seal ring 15
The leakproofness of circle 15, spacer 16 is for protecting combined seal ring 15 not damaged by preloading spring 17；
Sealing ring 19 is located in the card slot of spacer ring 20, and spacer ring 20 is slidably connected with valve rod 9, and sealing nut 21 and valve rod 9 are logical
Cross the connection that is screwed；
Piston 2 is set in the top of valve rod 9, and piston blot 6 passes through piston 2 and is fixedly connected with valve rod 9, piston blot 6
7 for increasing leakproofness are equipped between piston 2, the outer sheath of piston 2 is equipped with the v-seal for sealing with bonnet, 1
Circle 5, v-ring 5 is fixed on the piston 2 by pressing plate 4, and pressing plate 4 is fixedly connected on the piston 2 by bridge screw 3, living
The structure of plug 2, bridge screw 3 and pressing plate 4 is the prior art；
Piston seat 10 is endless metal seat, is step type along the section of axis, passes through between piston seat 10 and bonnet, 1
It is threadedly coupled, the upper end of gland 12 is fastened on the lower end of piston seat 10, and gland 12 is threadedly attached on valve body 18, piston seat
10 are fixedly connected by screw thread pressing sleeve 11 with gland 12, and the centre of screw thread pressing sleeve 11 is equipped with baffle, for piston seat 10 is fixed
On gland 12, the lower end of screw thread pressing sleeve 11 is fixedly connected by screw thread with gland 12；
Reset spring 8 is located between screw thread pressing sleeve 11 and piston 2, for making stop valve be in normally off；
The upper end of combined seal ring 15 connect by pressure ring 14 and dustband 13 with gland 12, and lower end passes through spacer 16, in advance
Tight spring 17 and balancing pole 22 are connect with valve body 18, and dustband 13 is located between gland 12 and pressure ring 14, and guide ring 23 passed through
Cooperation of being full of is fixedly connected with valve body 18, and spacer 16 is located between combined seal ring 15 and guide ring 23, and preloading spring 17 is set in
The outside of spacer 16, preloading spring 17 are used to increase the leakproofness of combined seal ring 15.
Embodiment 2
As shown in Figure 4, a kind of Pneumatic two-position cut-off valve belongs to normally opened property stop valve, including valve body 18, is equipped in valve body 18
Valve rod 9, valve rod 9 are equipped with the sealing ring 19 for sealing fluid inlet and fluid outlet, sealing at the fluid inlet of valve body 18
Circle 19 is fixed on valve rod 9 by spacer ring 20 and sealing nut 21, and the top of valve rod 9 is equipped with for cooperating air source control valve bar
The pistons 2 of 9 switches, piston 2 are fixed on valve rod 9 by piston blot 6, and the outside of piston 2 is covered with bonnet, 1, piston 2 with it is upper
It is tightly connected between valve deck 1；Bonnet, 1 is fixedly connected on valve body 18 by piston seat 10 and gland 12, valve rod 9 and piston seat
It is equipped with the combined seal ring 15 for sealing between 10 and gland 12, and is equipped between piston 2 and piston seat 10 and is closed for providing
The reset spring 8 of resultant force；
Other and embodiment 1 is identical；
Embodiment 3
As shown in Figure 3 or Figure 4, in the present embodiment, the inside of bonnet, 1 is equipped with the indicating arm for observing 2 process of piston
25, indicating arm 25 is located at the bottom of piston seat 10, and indicating arm 25 is slidably connected with piston seat 10, and finger is arranged on indicating arm 25
Show bar return spring 26, is used to indicate the return of bar 25；
Other and embodiment 1 or embodiment 2 are identical.
In conclusion the working principle of the invention is:
The present invention is located at the difference of valve rod 9 by the seal assembly for forming sealing ring 19, spacer ring 20 and sealing nut 21
Position, so that open type stop valve and normally closed property stop valve difference are only valve rod 9, other component can be general, this
The method of setting increases the versatility of open type stop valve and normally closed property stop valve components, to reduce stop valve
Processing cost and management cost；
It is at this time open type stop valve when seal assembly is in fluid inlet, controls gas source from top and enter stop valve
When, piston 2 pushes, and at this time under the drive of piston 2, valve rod 9 is pushed with dynamic sealing assembly, and sealing ring 19 is by fluid inlet and flows
Channel enclosed between body outlet, stop valve is closed at this time；
It is at this time closed type stop valve when seal assembly is in fluid outlet, under the effect of reset spring 8, valve rod 9 will
Seal assembly is attached at the channel between fluid inlet and fluid outlet, and sealing ring 19 will be between fluid inlet and fluid outlet
Channel enclosed, when control gas source enters stop valve from top, piston 2 is pushed, and at this time under the drive of piston 2, valve rod 9 is driven
Seal assembly pushes, and sealing ring 19 opens the channel between fluid inlet and fluid outlet, and stop valve is opened at this time.
It should be strongly noted that stop valve sealing technique is the application of the prior art in the application, by by sealing group
The versatility that the different location that part is located at valve rod improves open type stop valve and closed type cutting valve member is the innovation of the application
Point, efficiently solves pneumatic cut-off valve open type in the prior art and normally closed property components are more so that processing and management cost
The problem of increase.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description the invention and simplifies description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For limitation of the present invention.In addition, term " first ", " second " etc. are used for description purposes only, and it should not be understood as instruction or dark
Show relative importance or implicitly indicates the quantity of indicated technical characteristic.The spy of " first ", " second " etc. is defined as a result,
Sign can explicitly or implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated,
The meaning of " plurality " is two or more.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of Pneumatic two-position cut-off valve, including valve body (18), interior be equipped with of valve body (18) uses valve rod (9), and valve rod (9) is in valve body
(18) seal assembly for sealed valve body (18) fluid inlet and fluid outlet is equipped in, the top installation of valve rod (9) is useful
In the piston (2) of cooperation air source control valve bar (9) switch, piston (2) is fixed on valve rod (9) by piston blot (6), piston
(2) it is covered on the outside of bonnet, (1), is tightly connected between piston (2) and bonnet, (1), bonnet, (1) passes through piston seat (10)
It is fixedly connected on valve body (18) with gland (12)；It is characterized in that, the lower end of valve rod (9), which is equipped with, plays balanced fluid to spool
Pressure balancing pole (22), balancing pole (22) is slidably connected with valve body (18)；It is also set between balancing pole (22) and valve body (18)
There are pressure ring (14), combined seal ring (15) and spacer (16), and under pressure ring (14), combined seal ring (15) and spacer (16) pass through
Valve deck (24) is fixed on valve body (18), is equipped with dustband (13) between bottom flange (24) and balancing pole (22), and pressure ring (14) is
Metal pressure ring, and upper end is equipped with the V-shaped groove cooperated with combined seal ring (15), spacer (16) is located at combined seal ring (15) and leads
Between Xiang Huan (23), spacer (16) is equipped with preloading spring (17).
2. Pneumatic two-position cut-off valve according to claim 1, which is characterized in that seal assembly is located at the fluid outlet of valve body
Place.
3. Pneumatic two-position cut-off valve according to claim 1, which is characterized in that seal assembly is located at the fluid inlet of valve body
Place.
4. Pneumatic two-position cut-off valve according to claim 1 to 3, which is characterized in that seal assembly includes sealing ring
(19), spacer ring (20) and sealing nut (21), sealing ring (19) are fixed on valve rod (9) by spacer ring (20) and sealing nut (21)
On.
5. Pneumatic two-position cut-off valve according to claim 1 to 3, which is characterized in that piston (2) and piston seat (10)
Between be equipped with for providing the reset spring (8) of closing force.
6. Pneumatic two-position cut-off valve according to claim 1 to 3, which is characterized in that piston seat (10) is endless metal
Seat, along the section of axis be step type, be connected through a screw thread between piston seat (10) and bonnet, (1), gland (12) it is upper
End is fastened on the lower end of piston seat (10), and gland (12) is threadedly attached on valve body (18), and piston seat (10) passes through screw thread
Pressing sleeve (11) is fixedly connected with gland (12), and the centre of screw thread pressing sleeve (11) is equipped with baffle, and the lower end of screw thread pressing sleeve (11) passes through
Screw thread is fixedly connected with gland (12).
7. Pneumatic two-position cut-off valve according to claim 6, which is characterized in that valve rod (9) and piston seat (10) and gland
(12) combined seal ring (15) for sealing is equipped between, the upper end of combined seal ring (15) passes through pressure ring (14) and dustband
(13) it is connect with gland (12), lower end is connect by spacer (16), preloading spring (17) and balancing pole (22) with valve body (18), is prevented
Konisphere (13) is located between gland (12) and pressure ring (14), and guide ring (23) is fixedly connected by interference fit with valve body (18),
Spacer (16) is located between combined seal ring (15) and guide ring (23), and preloading spring (17) is set in the outside of spacer (16).
8. Pneumatic two-position cut-off valve according to claim 1 to 3, which is characterized in that the inside of bonnet, (1) is equipped with
For observing the indicating arm (25) of piston (2) process, indicating arm (25) is located at the bottom of piston seat (10), and indicating arm (25) with
Piston seat (10) is slidably connected, and indicating arm return spring (26) are arranged on indicating arm (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910664329.0A CN110345263A (en) | 2019-07-26 | 2019-07-26 | A kind of Pneumatic two-position cut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910664329.0A CN110345263A (en) | 2019-07-26 | 2019-07-26 | A kind of Pneumatic two-position cut-off valve |
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| Publication Number | Publication Date |
|---|---|
| CN110345263A true CN110345263A (en) | 2019-10-18 |
Family
ID=68179783
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910664329.0A Pending CN110345263A (en) | 2019-07-26 | 2019-07-26 | A kind of Pneumatic two-position cut-off valve |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2110585A1 (en) * | 2008-04-18 | 2009-10-21 | Bürkert Werke GmbH & Co. KG | Valve with pneumatic drive unit |
| CN201502719U (en) * | 2009-10-21 | 2010-06-09 | 浙江荣升机械有限公司 | Pneumatic two-position stop valve |
| CN104089077A (en) * | 2014-07-04 | 2014-10-08 | 中石化石油工程机械有限公司研究院 | Hydraulic drive device of underwater gate valve, underwater gate valve and control method of underwater gate valve |
| CN203906813U (en) * | 2014-06-06 | 2014-10-29 | 永嘉县嘉仕达阀门有限公司 | Pneumatic and manual normally-open emergency cut-off valve |
| CN104847903A (en) * | 2015-05-26 | 2015-08-19 | 杨舟 | Pneumatic cut-off valve |
| CN104847904A (en) * | 2015-05-26 | 2015-08-19 | 杨舟 | Pneumatic cut-off valve |
| CN205118270U (en) * | 2015-12-03 | 2016-03-30 | 衢州联盛方略技术开发有限公司 | Improved generation film pneumatic control valve |
| CN206036243U (en) * | 2016-08-23 | 2017-03-22 | 中山市大海自控阀门有限公司 | Pneumatic your trip valve of single spring piston |
-
2019
- 2019-07-26 CN CN201910664329.0A patent/CN110345263A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2110585A1 (en) * | 2008-04-18 | 2009-10-21 | Bürkert Werke GmbH & Co. KG | Valve with pneumatic drive unit |
| CN201502719U (en) * | 2009-10-21 | 2010-06-09 | 浙江荣升机械有限公司 | Pneumatic two-position stop valve |
| CN203906813U (en) * | 2014-06-06 | 2014-10-29 | 永嘉县嘉仕达阀门有限公司 | Pneumatic and manual normally-open emergency cut-off valve |
| CN104089077A (en) * | 2014-07-04 | 2014-10-08 | 中石化石油工程机械有限公司研究院 | Hydraulic drive device of underwater gate valve, underwater gate valve and control method of underwater gate valve |
| CN104847903A (en) * | 2015-05-26 | 2015-08-19 | 杨舟 | Pneumatic cut-off valve |
| CN104847904A (en) * | 2015-05-26 | 2015-08-19 | 杨舟 | Pneumatic cut-off valve |
| CN205118270U (en) * | 2015-12-03 | 2016-03-30 | 衢州联盛方略技术开发有限公司 | Improved generation film pneumatic control valve |
| CN206036243U (en) * | 2016-08-23 | 2017-03-22 | 中山市大海自控阀门有限公司 | Pneumatic your trip valve of single spring piston |
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Application publication date: 20191018 |
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