CN111365467A - Flow control unit and anti-leakage valve - Google Patents
Flow control unit and anti-leakage valve Download PDFInfo
- Publication number
- CN111365467A CN111365467A CN202010143083.5A CN202010143083A CN111365467A CN 111365467 A CN111365467 A CN 111365467A CN 202010143083 A CN202010143083 A CN 202010143083A CN 111365467 A CN111365467 A CN 111365467A
- Authority
- CN
- China
- Prior art keywords
- flow control
- control unit
- housing
- opening
- cone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
- F16K1/02—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 with screw-spindle
- F16K1/04—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 with screw-spindle with a cut-off member rigid with the spindle, e.g. main valves
-
- 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
-
- 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
- F16K1/38—Valve members of conical shape
- F16K1/385—Valve members of conical shape contacting in the closed position, over a substantial axial length, a seat surface having the same inclination
-
- 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
- F16K1/40—Valve members of helical shape
-
- 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
- F16K1/44—Details of seats or valve members of double-seat valves
-
- 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
- F16K27/0254—Construction of housing; Use of materials therefor of lift valves with conical shaped valve members
-
- 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
- F16K31/44—Mechanical actuating means
- F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
- F16K31/502—Mechanical actuating means with screw-spindle or internally threaded actuating means actuating pivotable valve members
-
- 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
- F16K31/44—Mechanical actuating means
- F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
- F16K31/506—Mechanical actuating means with screw-spindle or internally threaded actuating means with plural sets of thread, e.g. with different pitch
-
- 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
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
-
- 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
- F16K43/00—Auxiliary closure means in valves, which in case of repair, e.g. rewashering, of the valve, can take over the function of the normal closure means; Devices for temporary replacement of parts of valves for the same purpose
- F16K43/001—Auxiliary closure means in valves, which in case of repair, e.g. rewashering, of the valve, can take over the function of the normal closure means; Devices for temporary replacement of parts of valves for the same purpose an auxiliary valve being actuated independently of the main valve
- F16K43/003—Auxiliary closure means in valves, which in case of repair, e.g. rewashering, of the valve, can take over the function of the normal closure means; Devices for temporary replacement of parts of valves for the same purpose an auxiliary valve being actuated independently of the main valve the auxiliary valve being a rotary valve
Abstract
The invention relates to the technical field of sealing, and discloses a flow control unit and a leakage-proof valve, wherein the flow control unit (1) comprises a shell (11), a valve core (12) arranged in the shell (11) and an operation part (13) for operating the valve core (12) to move in the shell (11); the housing (11) comprises an opening (112); the valve core (12) comprises a cone (121) with a cone tip facing the opening (112) so as to close or open the opening (112) through axial movement; the cone (121) comprises a reducing external thread which is formed on the conical surface of the cone (121) and extends along the axial direction of the cone (121); the inner wall of the shell (11) close to the opening (112) is provided with a reducing internal thread which can be matched with the reducing external thread. The flow control unit improves the sealing performance, effectively prevents internal leakage and provides guarantee for equipment isolation.
Description
Technical Field
The invention relates to the technical field of sealing, in particular to a flow control unit and a leakage-proof valve.
Background
At present, enterprises such as power plants and chemical plants need to use a large amount of valves to isolate equipment, the sealing performance of the valve core of the existing valve is poor, the leakage in the valve generally exists, the equipment cannot be thoroughly isolated, and potential safety hazards exist. There is therefore a need to eliminate the existing drawbacks and to improve the sealing properties of the valve and thus the safety of the equipment.
Disclosure of Invention
The invention aims to solve the problems that the sealing performance of a valve is poor, internal leakage generally exists and equipment cannot be thoroughly isolated in the prior art, and the valve has good sealing performance, can be used for thoroughly isolating the equipment and improves the safety of the equipment.
In order to achieve the above object, an aspect of the present invention provides a flow control unit including a housing and a spool mounted in the housing, and a manipulation portion for manipulating the spool to move in the housing; the housing includes an opening; the valve core comprises a cone with a cone tip facing the opening so as to seal or open the opening through axial movement; the cone comprises a reducing external thread which is formed on the conical surface of the cone and extends along the axial direction of the cone; the shell is close to a reducing inner thread matched with the reducing outer thread is arranged on the inner wall of the opening.
Further, the shell comprises a first through hole penetrating through the wall of the shell and used for communicating with an external pipeline, and the first through hole is close to one end, away from the opening, of the reducing internal thread so that the first through hole and the opening can be selectively communicated through axial movement of the cone.
Further, the operating part comprises an operating rod fixedly connected with the valve core.
Further, the housing includes a second through hole penetrating a wall on the housing; the operating rod is movably arranged in the second through hole in a penetrating mode.
Further, the operating rod is provided with a screw rod structure with an external thread; the operating part comprises a nut which is positioned outside the shell and is in threaded connection with the operating rod and an operating handle which is fixed on the nut, wherein the nut is installed on the shell in a rotatable and axially immovable mode.
Further, the operating handle comprises a first operating wheel which is coaxial with the operating rod and fixedly connected with the nut.
Further, the shell comprises a valve body and a valve cover which are detachably connected; the valve core is accommodated in an accommodating cavity defined by the valve body and the valve cover. The second aspect of the invention provides a leakage-proof valve, which comprises a channel and more than two flow control units; the passage communicates with the inner spaces of the housings of the two flow control units.
Further, the two flow control units are disposed in such a manner that the spools are distant from each other.
Furthermore, one ends of the operating parts of the two flow control units, which are far away from the valve core, are close to each other, so that the valve core can rotate under the same power drive at the same time to drive the valve cores of the two flow control units to act at the same time.
Through the technical scheme, the flow control unit increases the contact area between the valve core and the shell by arranging the reducing internal thread and the reducing external thread, increases the resistance of a medium passing through the contact surface, improves the sealing performance and provides guarantee for equipment isolation.
Drawings
FIG. 1 is a schematic view of a leak prevention valve according to one embodiment of the present application;
fig. 2 is a partial structural schematic view of fig. 1.
Description of the reference numerals
1-a flow control unit; 2-a channel; 112-opening; 12-a valve core; 121-cone; 13-a manipulation section; 113-a first via; 131-a joystick; 132-a steering wheel; 1321 — a first steering wheel; 1322-a second steering wheel; 111-a second via; 114-a valve body; 115-valve cover; 116-a receiving cavity; 117-attachment structure; 133-nut.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, it is to be understood that the terms "away", "toward", and the like indicate an orientation or positional relationship corresponding to an orientation or positional relationship in actual use; "inner and outer" refer to the inner and outer relative to the profile of the components themselves; this is done solely for the purpose of facilitating the description of the invention and simplifying the description without indicating that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation and therefore should not be construed as limiting the invention.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. One aspect of the present invention provides a flow control unit, wherein the flow control unit 1 comprises a housing 11, a valve core 12 installed in the housing 11, and a manipulating part 13 for manipulating the valve core 12 to move in the housing 11; the housing 11 includes an opening 112; the valve core 12 comprises a cone 121 with a cone tip facing the opening 112 so as to close or open the opening 112 by axial movement; the cone 121 includes a variable-diameter external thread formed on a tapered surface of the cone 121 and extending in an axial direction of the cone 121; the inner wall of the shell 11 close to the opening 112 is provided with a reducing internal thread which can be matched with the reducing external thread. Through setting up reducing internal thread and reducing external screw thread, increased the area of contact between case 112 and the casing 11, increased the resistance that the medium passed this contact surface, improved sealing performance, kept apart for equipment and provided the assurance.
Preferably, the housing 11 includes a first through hole 113 penetrating through a wall of the housing 11 for communicating with an external pipe, the first through hole 113 being near an end of the variable diameter internal thread away from the opening 112 so that the first through hole 113 and the opening 112 can be selectively communicated by axial movement of the cone 121. The space in the shell 11 can be communicated with an external pipeline by arranging the first through hole 113, so that when the space between the reducing external thread on the valve core 12 and the reducing internal thread on the shell 11 is opened, a medium can flow between the first through hole 113 and the opening 112 through a gap between the reducing external thread and the reducing internal thread; on the contrary, when the reducing external thread on the valve core 12 and the reducing internal thread on the shell 11 are screwed, the circulation channel of the medium between the first through hole 113 and the opening 112 is blocked, thereby realizing the separation of different devices which are respectively communicated with the opening 112 and the first through hole 113.
Preferably, the operating portion 13 includes an operating lever 131 fixed to the valve body 12. The opening or closing of the opening 112 is realized by rotating the operating rod 131 to drive the valve core 12 to rotate and move along the axial direction.
Preferably, the housing 11 includes a second through hole 111 penetrating a wall on the housing 11; the operating rod 131 is movably inserted into the second through hole 111. By providing the second through hole 111, one end of the operating rod 131 extends outside the housing 11, which is advantageous for controlling the operation of the operating rod 131.
Preferably, the operating lever 131 is provided as a screw structure having an external thread; the operating portion 13 includes a nut 133 located outside the housing 11 and screwed to the operating lever 131, and an operating handle 132 fixed to the nut 133, wherein the nut 133 is rotatably and axially immovably mounted on the housing 11. In the embodiment shown in fig. 1-2, the second through hole 111 is configured as a light hole, and the operating rod 131 is rotated by the rotation of the nut 133 to drive the valve plug 12, which has the advantage that the nut 133 and other parts connected to the nut 133 do not move axially, so that on one hand, space can be saved, and on the other hand, the operation of a plurality of flow control units 1 can be facilitated at the same time.
In the second embodiment, the second through hole 111 is a threaded hole, and the operating lever 131 is rotated to axially move the operating portion 13 while rotating by screwing the operating lever 131 into the second through hole 111.
Preferably, the operating handle 132 comprises a first operating wheel 1321 coaxial with the operating rod 131 and fixedly connected to the nut 133. The nut 133 can be rotated by rotating the first operating wheel 1321, so that labor is saved, and the operation is convenient.
Preferably, the housing 11 includes a valve body 114 and a valve cover 115 detachably connected; the valve spool 12 is accommodated in an accommodation chamber 116 defined by the valve body 114 and the valve cover 115. This arrangement facilitates replacement and maintenance of the cartridge 12.
Preferably, the flow control unit 1 further includes a sealing gasket sleeved on the operating rod 131, the sealing gasket may be in a frustum shape, and when the variable-diameter external thread of the valve core 12 and the variable-diameter internal thread on the housing 11 are screwed, the sealing gasket can be attached to the inner wall of the housing 11, so as to achieve a further sealing effect.
In a second aspect, the invention provides a leak-proof valve, which comprises a channel 2 and two flow control units 1 described above; the passages 2 communicate the inner spaces of the housings 11 of the two flow control units 1. This arrangement is such that when it is desired to isolate the connection between the devices, it is sufficient to close the openings 112 in both flow control units 1 at the same time.
Preferably, two of the flow control units 1 are disposed in such a manner that the spools 12 are distant from each other. Thus, because the valve cores 12 of the two flow control units 1 and the pipeline connected with the opening 112 are coaxial, when the anti-leakage valve is opened and closed, the force arm is perpendicular to the axial direction of the pipeline connected with the opening 112, so that the bending stress of the pipeline is reduced, the safety of the pipeline is facilitated, and the safety of the pipeline with a small pipe diameter is particularly facilitated.
The anti-leakage valve can be used as a valve, at the moment, the two flow control units 1 can be sealed, the double-sealing effect is achieved, and a guarantee is provided for thorough isolation equipment. As shown in fig. 1, when the reducing external thread and the reducing internal thread are screwed, the spaces defined by the valve core 12, the housing 11 and the operating rod 131 of the two flow control units 1 are communicated through the channel 2 to form a closed space, if there is leakage between the valve core 12 and the opening 112, the leaked medium will flow into the closed space, so as to further prevent leakage and improve the sealing performance of the leak-proof valve. It is further preferred that the channel 2 is provided with a bend, so that more medium can be accommodated with the bend, further improving the leakage protection of the leakage protection valve.
The leak-proof valve can also be used as a two-way valve, i.e. when one of the two flow control units 1 fails, the other can be closed to service the failed flow control unit 1.
Preferably, the ends of the operating parts 13 of the two flow control units 1, which are far away from the valve core 12, are close to each other, so that the valve core 12 can rotate under the same power drive at the same time, and the valve cores 12 of the two flow control units 1 are driven to act at the same time. In one embodiment as shown in fig. 1-2, the manipulating part 13 comprises a nut 133 and a first manipulating wheel 1321 welded to the nut 133, and the first manipulating wheels 1321 of the two flow control units 1 are close to each other, preferably more than 0 mm and less than 5 mm. Preferably, the distance between the two first operating wheels 1321 is set to 2 mm, so that on one hand, the two first operating wheels 1321 can be operated by a wrench to simultaneously close or open the two valve cores 12, thereby improving the working efficiency. On the other hand, the two first steering wheels 1321 approach each other to restrict axial movement of each other, so that the first steering wheel 1321 restricts axial movement of the nut 133 connected to the first steering wheel 1321, as shown in fig. 1, the first steering wheel 1321 and the nut 133 of the same flow rate control unit 1 are welded together, and the first steering wheel 1321 and the nut 133 welded together are axially restricted by the housing 11 on one side and restricted by the first steering wheel 1321 of the other flow rate control unit 1 on the other side, so that when the first steering wheel 1321 is rotated, the operating lever 131 rotates the valve element 12 along with rotation of the first steering wheel 1321 to axially move.
Preferably, the operating handle 132 includes a second operating wheel 1322 fixedly connected to the nut 133 and coaxial with the operating rod 131, and as shown in fig. 1-2, the diameter of the second operating wheel 1322 is smaller than that of the first operating wheel 1321, so that the second operating wheel 1322 can be conveniently used to operate one valve core 12 alone.
In one embodiment as shown in fig. 1, two flow control units 1 are mounted on the pipeline, and the anti-leakage valves are axially opposite to each other, the threads on the two flow control units 1 are turned in opposite directions, the first operating wheel 1321 is rotated clockwise, and the valve cores 12 on two sides are simultaneously rotated along with the first operating wheel 1321 and are close to the openings 112 of the valve cores 12. When the first hand wheel 1321 is not rotating, the spool 12 closes the opening 112. The two-sided valve body 12 can be tightened by the second steering wheel 1322 to prevent leakage. When the opening 112 is opened, the first operating wheel 1321 is rotated counterclockwise, the valve element 12 moves away from the opening 112, and the medium flows out through the passage 2.
If it is necessary to individually close or open one flow rate control unit 1, the closing or opening of the flow rate control unit 1 on one side is achieved by rotating the second steering wheel 1322 on the side where the flow rate control unit 1 is located. For example, the first steering wheel 1321 is rotated clockwise until the first steering wheel 1321 is not rotated, then the second steering wheels 1322 on both sides are rotated clockwise until the second steering wheels 1322 on both sides are not rotated, at this time, the valve spools 12 on both sides are rotated in place, the switch limit is determined, and when the first steering wheel 1321 is rotated, the flow control units 1 on both sides can be ensured to be switched in place simultaneously.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, many simple modifications can be made to the technical solution of the invention. Including each of the specific features, are combined in any suitable manner. The invention is not described in detail in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.
Claims (10)
1. A flow control unit, characterized in that the flow control unit (1) comprises a housing (11) and a spool (12) mounted in the housing (11) and an operating portion (13) for operating the spool (12) to move in the housing (11); the housing (11) comprises an opening (112); the valve core (12) comprises a cone (121) with a cone tip facing the opening (112) so as to close or open the opening (112) through axial movement; the cone (121) comprises a reducing external thread which is formed on the conical surface of the cone (121) and extends along the axial direction of the cone (121); the inner wall of the shell (11) close to the opening (112) is provided with a reducing internal thread which can be matched with the reducing external thread.
2. The flow control unit according to claim 1, characterized in that the housing (11) comprises a first through hole (113) penetrating the wall of the housing (11) for communicating with an external pipe, the first through hole (113) being close to an end of the internal variable diameter thread remote from the opening (112) so that the first through hole (113) and the opening (112) can be selectively communicated by axial movement of the cone (121).
3. The flow control unit according to claim 2, characterized in that the operating portion (13) comprises an operating lever (131) which is solidly connected to the spool (12).
4. A flow control unit according to claim 3, characterized in that the housing (11) comprises a second through hole (111) through a wall on the housing (11); the operating rod (131) is movably arranged in the second through hole (111) in a penetrating mode.
5. A flow control unit according to claim 4, characterised in that the operating lever (131) is provided as a screw construction with an external thread; the operating part (13) comprises a nut (133) which is positioned outside the shell (11) and is screwed on the operating rod (131), and an operating handle (132) which is fixed on the nut (133), wherein the nut (133) is installed on the shell (11) in a rotatable and non-axially movable manner.
6. Flow control unit according to claim 5, characterized in that the operating handle (132) comprises a first steering wheel (1321) coaxial with the steering rod (131) and fixedly connected to the nut (133).
7. A flow control unit according to any of claims 1-6, characterized in that the housing (11) comprises a valve body (114) and a valve cover (115) which are detachably connected; the valve core (12) is accommodated in an accommodating cavity (116) defined by the valve body (114) and the valve cover (115).
8. A leak-proof valve, characterized by comprising a channel (2) and two flow control units (1) according to any of claims 1-7; the channel (2) communicates the inner spaces of the housings (11) of the two flow control units (1).
9. Leak-proof valve according to claim 8, characterized in that the two flow control units (1) are arranged with the spools (12) remote from each other.
10. Leak-proof valve according to claim 9, characterized in that the ends of the actuating parts (13) of the two flow control units (1) facing away from the spool (12) are close to each other so that the spool (12) can be rotated simultaneously under the same power drive to drive the spools (12) of the two flow control units (1) to act simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010143083.5A CN111365467B (en) | 2020-03-04 | 2020-03-04 | Flow control unit and anti-leakage valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010143083.5A CN111365467B (en) | 2020-03-04 | 2020-03-04 | Flow control unit and anti-leakage valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111365467A true CN111365467A (en) | 2020-07-03 |
| CN111365467B CN111365467B (en) | 2022-03-04 |
Family
ID=71204302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010143083.5A Active CN111365467B (en) | 2020-03-04 | 2020-03-04 | Flow control unit and anti-leakage valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111365467B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3503586A (en) * | 1967-06-21 | 1970-03-31 | Applic Gaz Sa | Valves |
| CN2054114U (en) * | 1989-08-19 | 1990-03-07 | 于兆勤 | Adjustable gas furnace mouth |
| CN2343430Y (en) * | 1998-08-05 | 1999-10-13 | 大庆石油管理局第九采油厂 | Left/right vortex type high-efficient water injection well choke |
| CN2436738Y (en) * | 2000-08-19 | 2001-06-27 | 中国农业科学院农田灌溉研究所 | Drop and leakage proof valve for miniature irrigation |
| CN200993235Y (en) * | 2006-12-31 | 2007-12-19 | 郑敬炎 | Water-valve |
| CN104455599A (en) * | 2014-11-24 | 2015-03-25 | 西北工业大学 | Safety valve with tubular column structure |
-
2020
- 2020-03-04 CN CN202010143083.5A patent/CN111365467B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3503586A (en) * | 1967-06-21 | 1970-03-31 | Applic Gaz Sa | Valves |
| CN2054114U (en) * | 1989-08-19 | 1990-03-07 | 于兆勤 | Adjustable gas furnace mouth |
| CN2343430Y (en) * | 1998-08-05 | 1999-10-13 | 大庆石油管理局第九采油厂 | Left/right vortex type high-efficient water injection well choke |
| CN2436738Y (en) * | 2000-08-19 | 2001-06-27 | 中国农业科学院农田灌溉研究所 | Drop and leakage proof valve for miniature irrigation |
| CN200993235Y (en) * | 2006-12-31 | 2007-12-19 | 郑敬炎 | Water-valve |
| CN104455599A (en) * | 2014-11-24 | 2015-03-25 | 西北工业大学 | Safety valve with tubular column structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111365467B (en) | 2022-03-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20100307607A1 (en) | Reversing valve | |
| CN109695748B (en) | Duplex valve device | |
| CN111365467B (en) | Flow control unit and anti-leakage valve | |
| US6772783B2 (en) | Rotary to linear valve and method of use | |
| US20130269813A1 (en) | Valve Combined With Water Hammer Arrester | |
| US8740186B2 (en) | Valve and a method for providing such a valve | |
| US11732811B2 (en) | Dual shut-off valve | |
| CN216279540U (en) | Multi-way control valve | |
| CN216742873U (en) | Stop valve and air conditioning unit thereof | |
| WO2016099337A1 (en) | Shutoff and control ball valve | |
| CN210178989U (en) | Switching-over device of route adjustable | |
| RU2485377C2 (en) | Compact flap valve | |
| JP7319400B2 (en) | valve operator assembly | |
| CN110388481B (en) | Ball valve | |
| CN214889019U (en) | Sealed adjustable spherical hard-sealing rotary ball valve | |
| US20210348691A1 (en) | Multi-way valve assemblies for flow control of a fluid | |
| CN207421384U (en) | Ball valve | |
| CN216923308U (en) | Valve capable of adjusting flow path direction and opening and closing | |
| CN212775879U (en) | Misoperation preventing executing mechanism mode switching device with lead sealing structure | |
| US20220163121A1 (en) | Valve Providing Supplemental Feedback During Operation | |
| CN220622823U (en) | Ball valve with high sealing function | |
| EP2609350B1 (en) | A metering ball valve | |
| KR101657945B1 (en) | Hydraulic actuator for quarter-turn valve | |
| CN114110206A (en) | Multi-way control valve | |
| WO2023280686A1 (en) | A regulating valve arrangement and an obturator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |