CN113090781A - Energy storage closing type parallel double-flashboard gate valve - Google Patents
Energy storage closing type parallel double-flashboard gate valve Download PDFInfo
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- CN113090781A CN113090781A CN202110375322.4A CN202110375322A CN113090781A CN 113090781 A CN113090781 A CN 113090781A CN 202110375322 A CN202110375322 A CN 202110375322A CN 113090781 A CN113090781 A CN 113090781A
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/16—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together
- F16K3/18—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together by movement of the closure 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/044—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0254—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor being operated by particular means
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0272—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor permitting easy assembly or disassembly
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/029—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with two or more gates
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/316—Guiding of the slide
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
Abstract
The invention discloses an energy storage closing type parallel double-flashboard gate valve which comprises a valve body, a valve cover, a valve rod and a flashboard assembly, wherein the flashboard assembly comprises a flashboard frame, two flashboards which are parallel to each other are arranged on the flashboard frame, and a closing device is arranged between the two flashboards; after the valve rod drives the flashboard assembly to close the valve hole, the valve rod can compress the energy storage elastic part to push the wedge to continuously move downwards relative to the flashboard frame, so that two wedge surfaces of the wedge press the left center and the right center, the two flashboards are unfolded to move outwards, the sealing surface of the flashboard is tightly pressed and sealed with the sealing surface of the valve seat, the sealing valve has good sealing performance, in the initial stage of opening of the valve, the flashboard frame can be kept still under the action of the energy storage elastic part, at the moment, the valve rod can drive the wedge to move upwards relative to the flashboard frame, the wedge is released from being tightly pressed with the left center and the right center, the pressing force of the flashboard and the sealing surface of the valve seat is released, the mutual friction of the flashboard.
Description
Technical Field
The invention relates to the field of valves, in particular to an energy storage closing type parallel double-flashboard gate valve.
Background
Conventional gate valve structures typically employ either wedge gate or parallel gate configurations, with single and double gates being the number of gates. The wedge gate valve has wedge-shaped gate plate, V-shaped openings in the sealing surfaces of two valve seats, and sealing surface matching with the V-shaped opening of the valve seat. The wedge gate valve needs a lot of special technical equipment for processing and manufacturing, and the manufacturing difficulty is high. The valves are more difficult to maintain after a user's field installation run cycle.
The parallel gate valve adopts a single-plate or double-plate gate plate, two valve seat sealing surfaces are parallel to each other, a valve seat ring and a valve body are in threaded connection or in a welding connection or in a floating type, the valve seat sealing surfaces are subjected to surfacing welding, and the gate plate sealing surfaces can be subjected to surfacing welding, thermal spraying or other cladding modes. The parallel gate valve has the advantages of simple processing and manufacturing, convenient maintenance, incapability of forcibly closing the valve, realization of sealing by medium pressure, and easy leakage generation when the pipeline system is initially boosted or the pressure is lower under the working condition. Parallel gate valves typically incorporate one or more coil springs between the left and right gate plates to effect an initial seal. However, the acting force of the spring always enables the flashboard to press towards the sealing surface of the valve body seat, even if the flashboard is close to a fully-opened state, the flashboard inclines towards two sides, the spring force still exists, uneven stress is formed on the sealing surface, and the sealing surface is easy to scratch.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an energy-storage close type parallel double-flashboard gate valve.
In order to achieve the purpose, the invention provides the following technical scheme:
an energy storage close type parallel double-flashboard gate valve comprises a valve body, a valve cover, a valve rod and a flashboard assembly, wherein a valve seat matched with the flashboard assembly is arranged on a valve hole of the valve body; the flashboard assembly comprises a flashboard frame, two flashboards which are parallel to each other are arranged on the flashboard frame, and a closing device is arranged between the two flashboards; the closing device comprises a wedge, a left top center and a right top center which are respectively arranged on the two flashboards, one end part of the wedge is arranged between the left top center and the right top center, the other end part of the wedge is connected with the valve rod through a connector, and the flashboard frame is provided with a connecting cavity for the connector to move up and down; one end of the valve rod is provided with an energy storage elastic piece which abuts against and is pressed on the gate plate frame; after the valve rod drives the flashboard assembly to close the valve hole, the valve rod can compress the energy storage elastic part to push the wedge to continue to move downwards relative to the flashboard frame, so that the two wedge surfaces of the wedge compress the left center and the right center, the two flashboards are unfolded to move outwards, and the sealing surface of the flashboard and the sealing surface of the valve seat are pressed, sealed and attached.
The invention further provides that: the moving distance of the connecting cavity for the connecting head to move up and down is larger than the maximum moving distance of the wedge relative to the gate plate frame.
The invention further provides that: the energy storage elastic part is a disc spring, the disc spring is sleeved on the valve rod, one end of the disc spring is abutted against the annular boss of the valve rod, and the other end of the disc spring is abutted against the gate plate frame.
The invention further provides that: the disc spring is supported against the gate plate frame through the gasket
The invention further provides that: one end of the connector is in threaded connection with the valve rod, and the other end of the connector is connected with the wedge.
The invention further provides that: the side surfaces of the left top center and the right top center facing the wedge are spherical surfaces.
The invention further provides that: the hole of flashboard frame sets up the first fan-shaped ka tai of two symmetric distributions, the flashboard also sets up the fan-shaped ka tai of second of two symmetric distributions, when the flashboard was installed in the hole of flashboard frame, promotes the rotatory 90 of flashboard for the fan-shaped ka tai of second and the coincide of first fan-shaped ka tai one-to-one, thereby fix the flashboard in the inner hole of flashboard frame.
The invention further provides that: limiting holes are formed in the two side faces of the flashboard frame, and limiting grooves are formed in the positions, corresponding to the limiting holes, of the flashboards;
set up restriction spring and restriction round pin axle on the restriction hole, restriction round pin axle can be under the restriction spring effect for restriction round pin axle one end portion arranges the restriction hole in, another tip and restriction inslot, thereby restriction flashboard frame relative rotation of flashboard.
The invention further provides that: the valve body is provided with first spacing boss, the flashboard frame is provided with the spacing boss of second, and when the valve opening of valve body was closed to the flashboard subassembly, the spacing boss of second supported and leaned on first spacing boss.
The invention further provides that: the valve body sets up the guide rail, the side of flashboard frame is provided with the guide part with guide rail matched with.
The invention has the beneficial effects that: after the valve rod drives the flashboard assembly to close the valve hole, the valve rod can compress the energy storage elastic part to push the wedge to continuously move downwards relative to the flashboard frame, so that two wedge surfaces of the wedge tightly press the left center and the right center, and thus the two flashboards are unfolded to move outwards, and the sealing surface of the flashboard is tightly pressed and sealed with the sealing surface of the valve seat;
the valve rod can drive the wedge to move up and down relative to the gate plate frame under the action of the energy storage elastic piece, the wedge is matched with the left top center and the right top center to convert the vertical movement of the wedge into the relative opening horizontal movement of the two gate plates so as to apply or release the pressing force of the joint of the gate plates and the sealing surfaces of the valve seats, when the valve is closed, the gate plates are tightly jointed with the sealing surfaces of the valve seats, the valve has good sealing performance, the phenomenon of initial pressure rise or low-pressure leakage of the traditional parallel gate valve is eliminated, when the valve is opened, the mutual friction between the sealing surfaces of the gate plates and the valve seats can be effectively avoided, the sealing surfaces are protected from being scratched, the service life of the valve is prolonged, and the defects that the sealing surfaces of.
Drawings
FIG. 1 is a cross-sectional view of an energy storing closeable parallel dual gate valve of the present invention;
FIG. 2 is an assembled cross-sectional view of the ram assembly and the cinching device;
FIG. 3 is a cross-sectional view of an energy storing closeable parallel dual gate plate gate valve in a fully open position;
FIG. 4 is a cross-sectional view of an energy storing closed parallel double gate valve in the closed position;
FIG. 5 is a cross-sectional view of an energy storing closeable parallel double gate valve in the closed position with the closeout in the compressed state;
FIG. 6 is a schematic structural view of the gate plate frame;
FIG. 7 is a cross-sectional view of the gate plate frame;
FIG. 8 is a schematic view of the shutter arrangement;
fig. 9 is a sectional view of the shutter.
Description of reference numerals: 1. a valve body; 11. a valve bore; 12. a guide rail; 13. a first limit boss; 2. a valve cover; 3. a valve stem; 31. an annular boss; 4. a gate plate assembly; 41. a gate plate frame; 411. a first sector shaped chuck table; 412. a limiting aperture; 413. a guide portion; 414. a second limit boss; 415. a connecting cavity; 42. a shutter plate; 421. a second sector shaped chuck table; 422. a limiting groove; 43. a restraining spring; 44. limiting the pin shaft; 5. a valve seat; 6. a tightening device; 61. a wedge; 62. the left parietal center; 63. the right parietal center; 64. an energy storage elastic member; 65. a gasket; 66. a connecting head.
Detailed Description
An energy storing and closing type parallel double gate plate gate valve according to the present invention will be described in further detail with reference to fig. 1 to 9.
As can be seen from fig. 1 and 2, the energy storage close type parallel double-gate-plate gate valve comprises a valve body 1, a valve cover 2, a valve rod 3 and a gate plate assembly 4, wherein a valve seat 5 matched with the gate plate assembly 4 is arranged on a valve hole 11 of the valve body 1; the flashboard subassembly 4 includes flashboard frame 41, is provided with two flashboards 42 that are parallel to each other at flashboard frame 41, can know from fig. 6 to 9, the hole of flashboard frame 41 is provided with the first fan-shaped calorie of platform 411 of two symmetric distributions, flashboard 42 also sets up the fan-shaped calorie of platform 421 of two symmetric distributions, when flashboard 42 is installed at the hole of flashboard frame 41, it is rotatory 90 to promote flashboard 42, make second fan-shaped calorie of platform 421 and the first fan-shaped calorie of platform 411 one-to-one coincide, thereby fix flashboard 42 in the hole of flashboard frame 41, be convenient for flashboard 42 and flashboard frame 41 installation fixed, dismantle flashboard 42 as required, only need promote flashboard 42 counter rotation 90, make second fan-shaped calorie of platform 421 stagger each other with first fan-shaped calorie of platform 411, just can dismantle flashboard 42 from the hole of flashboard frame 41, convenient to dismantle the maintenance.
Limiting holes 412 are formed in the two side faces of the flashboard frame 41, and limiting grooves 422 are formed in the positions, corresponding to the limiting holes 412, of the flashboards 42; the limiting hole 412 is provided with a limiting spring 43 and a limiting pin shaft 44, and the limiting pin shaft 44 is enabled to be arranged in the limiting hole 412 at one end part of the limiting pin shaft 44 under the action of the limiting spring 43, and the other end part of the limiting pin shaft 44 is arranged in the limiting groove 422, so that the rotation of the gate plate 42 relative to the gate plate frame 41 is limited, and the rotation trend of the gate plate 42 during opening and closing is limited.
Valve body 1 sets up guide rail 12, the side of flashboard frame 41 is provided with guide part 413 with guide rail 12 matched with, reciprocates flashboard frame 41 and plays the guide effect, improves the valve and opens and close the reliability. The flashboard 42 is provided with the sealed face matched with the sealed face of valve seat 5, and wherein the sealed face of two flashboards 42 and valve seat 5 all adopts the build-up welding carbide layer, wherein the valve body 1 is provided with first spacing boss 13, flashboard frame 41 is provided with the spacing boss 414 of second, and when the valve opening 11 of valve body 1 was closed to flashboard subassembly 4, the spacing boss 414 of second supported and leaned on first spacing boss 13, played limiting displacement.
A closing device 6 is arranged between the two gate plates 42; the tightening device 6 comprises a wedge 61 and a left top core 62 and a right top core 63 which are respectively arranged on the two gate plates 42, and the side surfaces of the left top core 62 and the right top core 63 facing the wedge 61 are spherical surfaces. One end part of the wedge 61 is arranged between the left top core 62 and the right top core 63, the other end part of the wedge is in threaded connection with the valve rod 3 through the connecting head 66, the connecting head 66 and the valve rod 3 are convenient to mount, and the flashboard frame 41 is provided with a connecting cavity 415 for the connecting head 66 to move up and down; one end part of the valve rod 3 is provided with an energy storage elastic piece 64, and the energy storage elastic piece 64 abuts against and is pressed on the gate plate frame 41; energy storage elastic component 64 can be belleville spring, belleville spring cover is established on valve rod 3, and its one end offsets with the annular boss 31 of valve rod 3 and leans on, and the other end supports through gasket 65 and leans on flashboard frame 41, wherein belleville spring installs on valve rod 3 for the flashboard frame 41 receives belleville spring's compressing tightly all the time.
When the valve rod 3 drives the gate plate assembly 4 to move downwards to close the valve, the gate plate assembly 4 moves from the full-open position of the valve to the position where the second limit boss 414 of the gate plate frame 41 abuts against the first limit boss 13, so as to close the valve hole 11 as shown in fig. 4; after the valve rod 3 drives the gate plate assembly 4 to close the valve hole 11, because the gate plate frame 41 is provided with a connecting cavity 415 for the connecting head 66 to move up and down, the valve rod 3 can compress the energy storage elastic member 64 to push the wedge 61 to move downward relative to the gate plate frame 41, so that the two wedge surfaces of the wedge 61 press the left center 62 and the right center 63, thereby opening the two gate plates 42 to move outward, so that the sealing surface of the gate plate 42 and the sealing surface of the valve seat 5 are pressed, sealed and attached as shown in fig. 5, and have good sealing performance, wherein in order to ensure that the gate plate 42 and the valve seat 5 have enough sealing pressing force, the moving distance of the connecting cavity 415 for the connecting head 66 to move up and down is larger than the maximum moving distance of the wedge 61 relative to the gate plate frame 41, so that when the valve rod 3 compresses the energy storage elastic member 64 to push the wedge 61 to move downward, namely, the lower end surface of the connecting head 66 is still at a certain distance from the bottom surface of the connecting cavity 415, so that the problem that the sealing pressing force of the gate plate 42 and the valve seat 5 is still insufficient when the connecting head 66 moves to the lowest position is avoided, and meanwhile, the sealing surface of the gate plate 42 and the valve seat 5 is worn, and the sufficient sealing pressing force of the gate plate 42 and the valve seat 5 can still be ensured because the two gate plates 42 are provided with the supporting distance allowance.
When the valve rod 3 drives the gate plate assembly 4 to move upwards to open the valve, at the initial stage of opening the valve, the gate plate frame 41 is firstly kept still under the action of the energy storage elastic piece 64, at the moment, the valve rod 3 drives the wedge 61 to move upwards relative to the gate plate frame 41, the wedge 61 is released from being pressed by the left top core 62 and the right top core 63, so that the pressing force of the sealing surfaces of the two gate plates 42 and the sealing surface of the valve seat 5 is released, at the moment, the valve rod 3 continues to move upwards, the valve rod 3 drives the wedge 61 and the gate plate frame 41 to move upwards to the full-open position together as shown in fig. 3, and at the moment, the gate plate 42 is not pressed by the wedge 61, so that the mutual friction between the sealing surfaces of the gate plates 42 and the valve seat 5 is effectively avoided.
Under the action of the energy storage elastic piece 64, the valve rod 3 can drive the wedge 61 to move up and down relative to the gate plate frame 41, the wedge 61 is matched with the left top center 62 and the right top center 63, the vertical movement of the wedge 61 is converted into the relative opening horizontal movement of the two gate plates 42, so that the pressing force of the sealing surface joint of the gate plates 42 and the valve seat 5 is applied or released, when the valve is closed, the sealing surfaces of the gate plates 42 and the valve seat 5 are tightly jointed, the good sealing performance is achieved, the phenomenon of initial pressure rise or low-pressure leakage of the traditional parallel gate valve is eliminated, when the valve is opened, the mutual friction between the sealing surfaces of the gate plates 42 and the valve seat 5 can be effectively avoided, the sealing surfaces are prevented from being scratched, the service life of the gate valve is prolonged, and the defects that the sealing surfaces of.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (10)
1. An energy storage close type parallel double-flashboard gate valve comprises a valve body, a valve cover, a valve rod and a flashboard assembly, wherein a valve seat matched with the flashboard assembly is arranged on a valve hole of the valve body;
the flashboard assembly comprises a flashboard frame, two flashboards which are parallel to each other are arranged on the flashboard frame, and a closing device is arranged between the two flashboards;
the method is characterized in that: the closing device comprises a wedge, a left top center and a right top center which are respectively arranged on the two flashboards, one end part of the wedge is arranged between the left top center and the right top center, the other end part of the wedge is connected with the valve rod through a connector, and the flashboard frame is provided with a connecting cavity for the connector to move up and down;
one end of the valve rod is provided with an energy storage elastic piece which abuts against and is pressed on the gate plate frame;
after the valve rod drives the flashboard assembly to close the valve hole, the valve rod can compress the energy storage elastic part to push the wedge to continue to move downwards relative to the flashboard frame, so that the two wedge surfaces of the wedge compress the left center and the right center, the two flashboards are unfolded to move outwards, and the sealing surface of the flashboard and the sealing surface of the valve seat are pressed, sealed and attached.
2. An energy storing closeable parallel dual gate valve as claimed in claim 1, wherein: the moving distance of the connecting cavity for the connecting head to move up and down is larger than the maximum moving distance of the wedge relative to the gate plate frame.
3. An energy storing closeable parallel dual gate valve as claimed in claim 1, wherein: the energy storage elastic part is a disc spring, the disc spring is sleeved on the valve rod, one end of the disc spring is abutted against the annular boss of the valve rod, and the other end of the disc spring is abutted against the gate plate frame.
4. An energy storing cinching parallel dual gate disc gate valve as claimed in claim 3, wherein: the disc spring is abutted against the gate plate frame through the gasket.
5. An energy storing cinching parallel dual gate disc gate valve as claimed in claim 1 or 2 or 3, wherein: one end of the connector is in threaded connection with the valve rod, and the other end of the connector is connected with the wedge.
6. An energy storing cinching parallel dual gate disc gate valve as claimed in claim 1 or 2 or 3, wherein: the side surfaces of the left top center and the right top center facing the wedge are spherical surfaces.
7. An energy storing cinching parallel dual gate disc gate valve as claimed in claim 1 or 2 or 3, wherein: the hole of flashboard frame sets up the first fan-shaped ka tai of two symmetric distributions, the flashboard also sets up the fan-shaped ka tai of second of two symmetric distributions, when the flashboard was installed in the hole of flashboard frame, promotes the rotatory 90 of flashboard for the fan-shaped ka tai of second and the coincide of first fan-shaped ka tai one-to-one, thereby fix the flashboard in the inner hole of flashboard frame.
8. An energy storing cinching parallel dual gate disc gate valve as claimed in claim 7, wherein: limiting holes are formed in the two side faces of the flashboard frame, and limiting grooves are formed in the positions, corresponding to the limiting holes, of the flashboards;
set up restriction spring and restriction round pin axle on the restriction hole, restriction round pin axle can be under the restriction spring effect for restriction round pin axle one end portion arranges the restriction hole in, another tip and restriction inslot, thereby restriction flashboard frame relative rotation of flashboard.
9. An energy storing cinching parallel dual gate disc gate valve as claimed in claim 1 or 2 or 3, wherein: the valve body is provided with first spacing boss, the flashboard frame is provided with the spacing boss of second, and when the valve opening of valve body was closed to the flashboard subassembly, the spacing boss of second supported and leaned on first spacing boss.
10. An energy storing cinching parallel dual gate disc gate valve as claimed in claim 1 or 2 or 3, wherein: the valve body sets up the guide rail, the side of flashboard frame is provided with the guide part with guide rail matched with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110375322.4A CN113090781A (en) | 2021-04-08 | 2021-04-08 | Energy storage closing type parallel double-flashboard gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110375322.4A CN113090781A (en) | 2021-04-08 | 2021-04-08 | Energy storage closing type parallel double-flashboard gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113090781A true CN113090781A (en) | 2021-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110375322.4A Pending CN113090781A (en) | 2021-04-08 | 2021-04-08 | Energy storage closing type parallel double-flashboard gate valve |
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| CN (1) | CN113090781A (en) |
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| CN205315751U (en) * | 2015-12-16 | 2016-06-15 | 温州职业技术学院 | Hard sealing gate valve of two flat boards |
| CN106286874A (en) * | 2015-05-25 | 2017-01-04 | 北京实力源科技开发有限责任公司 | A kind of push-pull valve |
| CN208311515U (en) * | 2018-04-27 | 2019-01-01 | 宝鸡泰华磁机电技术研究所有限公司 | Bracing type parallel double-flashboard alloy seal magnetic force gate valve |
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2021
- 2021-04-08 CN CN202110375322.4A patent/CN113090781A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929556A (en) * | 2010-07-16 | 2010-12-29 | 上海以琳石油机械制造有限公司 | High-temperature gate valve of combined wedge plate |
| CN103090034A (en) * | 2013-01-18 | 2013-05-08 | 南方阀门制造有限公司 | Wedge-caulking parallel sluice valve |
| CN203286028U (en) * | 2013-06-05 | 2013-11-13 | 环球阀门集团有限公司 | Double-disc parallel seat vacuum isolating valve |
| CN204985792U (en) * | 2015-05-15 | 2016-01-20 | 营口埃斯威特阀门有限公司 | Parallel gate valve |
| CN106286874A (en) * | 2015-05-25 | 2017-01-04 | 北京实力源科技开发有限责任公司 | A kind of push-pull valve |
| CN205315751U (en) * | 2015-12-16 | 2016-06-15 | 温州职业技术学院 | Hard sealing gate valve of two flat boards |
| CN208311515U (en) * | 2018-04-27 | 2019-01-01 | 宝鸡泰华磁机电技术研究所有限公司 | Bracing type parallel double-flashboard alloy seal magnetic force gate valve |
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