CN110107710B - Regulating valve - Google Patents
Regulating valve Download PDFInfo
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- CN110107710B CN110107710B CN201910478618.1A CN201910478618A CN110107710B CN 110107710 B CN110107710 B CN 110107710B CN 201910478618 A CN201910478618 A CN 201910478618A CN 110107710 B CN110107710 B CN 110107710B
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- hole
- valve
- rotating shaft
- valve body
- roller
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
- F16K31/043—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/02—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having conical surfaces; Packings therefor
- F16K5/0207—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having conical surfaces; Packings therefor with special plug arrangement, e.g. special shape or built in 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/02—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having conical surfaces; Packings therefor
- F16K5/0242—Spindles and actuating 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/16—Special arrangements for separating the sealing faces or for pressing them together for plugs with conical surfaces
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention discloses a regulating valve, which comprises a valve body, wherein a valve body through hole is formed in the valve body, and the valve body through hole comprises a fine hole, a conical table hole and a hole expansion from top to bottom; the valve core consists of a connecting rod, a valve core main body and a sliding rod from top to bottom; the bottom cover is fixedly connected to the lower end of the valve body and used for sealing the hole expansion; the upper cover is fixedly connected to the lower end of the valve body and used for sealing the fine hole; the motor is arranged on the mounting frame; the telescopic rod consists of a connecting plate, a sliding rod and a cylindrical pin from bottom to top; a rotating shaft composed of a turntable and a rotating shaft main body; the roller is fixedly connected with an output shaft of the motor; the transmission rod consists of a sliding part, a rotating shaft part and a connecting part. The regulating valve has the advantages of simple and reasonable structure, long service life and convenient control.
Description
Technical Field
The invention relates to the technical field of pipeline valves, in particular to a regulating valve.
Background
The regulating valve is widely applied to oil field exploitation, transportation and refining equipment, and is widely applied to petrochemical industry, chemical industry, coal gas, natural gas, liquefied petroleum gas, heating and ventilation industry and general industry; the main functions are to switch off, switch on and shunt the medium. The plug valve is one of regulating valves, the existing plug valve comprises a valve body, a valve core, a valve seat and a valve rod, the valve rod is connected with the valve core, the valve seat is positioned in a channel in the valve body, and the valve core and the valve seat of the plug valve are matched to form a sealing pair. The valve rod is rotated to drive the valve core to rotate together, so that the channel port on the valve core is communicated with or separated from the channel port on the valve body, and the opening or closing action is realized. The plug valve is sealed by means of the direct contact between the metal valve core and the valve seat, so that the plug valve has great opening and closing force and is easy to wear.
Disclosure of Invention
Technical problem to be solved
The invention aims to provide a regulating valve with a valve core free from abrasion.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a regulator valve characterized by: the valve comprises a valve body, wherein a valve body through hole is formed in the valve body, the valve body through hole comprises a fine hole, a conical frustum hole and a hole expansion from top to bottom, the inner wall of the conical frustum hole of the valve body is a sealing surface, a first through flow port and a second through flow port are symmetrically arranged on two sides of the valve body, and the first through flow port and the second through flow port are communicated with the conical frustum hole; the valve core is arranged in the through hole of the valve body and consists of a connecting rod, a valve core main body and a sliding rod from top to bottom, the valve core main body is in a cone frustum shape and can be matched with the cone frustum hole to form sealing, and the on-off between the first through hole and the second through hole can be controlled by rotating the valve core; the bottom cover is fixedly connected to the lower end of the valve body and used for sealing and reaming, a bottom cover through hole is formed in the bottom cover, and the sliding rod penetrates through the bottom cover through hole and extends out to the lower side of the bottom cover; the upper cover is fixedly connected to the upper end of the valve body and used for sealing the fine holes, and consists of a cover plate, a track block, a connecting frame and a mounting frame from bottom to top, wherein a cover plate through hole is formed in the cover plate, the track block is connected with the cover plate through four stand columns, a cavity is formed in the middle of the track block, a square sliding groove penetrating through the track block is formed in the track block, the round hole penetrates through the track block, the axis of the round hole is parallel to that of the sliding groove, a shaft is further arranged on the track block, a rectangular window is formed in the connecting frame, and; the motor is arranged on the mounting frame; the telescopic rod consists of a connecting plate, a sliding rod and a cylindrical pin from bottom to top, wherein the connecting plate is provided with a U-shaped open slot, and the sliding rod can be matched in the sliding slot in a vertically sliding manner; the rotating shaft is composed of a rotating disc and a rotating shaft main body, four U-shaped grooves are uniformly distributed on the rotating disc along the circumferential direction, the rotating shaft main body is a stepped rod body with small ends and large diameter in the middle, the small-diameter part at one end is connected with the rotating disc, the small-diameter part at the other end is matched with the round hole, so that the rotating shaft can rotate in the round hole, and a blind hole with a square groove is further formed in the rotating shaft main body; the roller is arranged on a U-shaped support frame formed by the shaft, the connecting frame and the mounting frame, one end of the roller is fixedly connected with an output shaft of the motor, the other end of the roller is rotatably connected with the shaft, the side surface of the roller is also provided with a first spiral groove, a second spiral groove and a horizontal groove which are communicated with each other and are surrounded along the circumferential direction of the roller, a cylindrical pin penetrates through the rectangular window and extends into the first spiral groove, the second spiral groove and the horizontal groove, when the roller rotates, the cylindrical pin can drive the telescopic rod to move up and down, the lower side of the roller is further eccentrically provided with a bulge, the bulge can be inserted into the U-shaped groove when the roller rotates, and therefore the rotary disc is; the transmission rod consists of a sliding part, a rotating shaft part and a connecting part, wherein the sliding part is provided with a flat key and is matched with a blind hole with a square groove in the rotating shaft main body, so that the transmission rod and the rotating shaft can slide mutually and can also rotate along with the rotating shaft, the rotating shaft part is provided with an annular groove, an open groove is clamped in the annular groove, the transmission rod can move up and down along with the telescopic rod without being hindered from rotating, the connecting part penetrates through a cover plate through hole to be fixedly connected with the connecting rod, and the transmission rod can drive the valve core to rotate and slide up and down.
The motor is a stepping motor.
The valve core main body is provided with a trapezoidal through hole.
(III) advantageous effects
Compared with the prior art, the technical scheme of the invention has the following advantages:
(1) the electric control does not need manual operation, saves time and labor,
(2) the valve core is not abraded, and the service life can be prolonged.
Drawings
FIG. 1 is a sectional view of the control valve of the embodiment when closed;
FIG. 2 is a cross-sectional view of the regulator valve cartridge removed from the valve body in an embodiment;
FIG. 3 is a cross-sectional view of the rotary valve spool of the regulator valve of the embodiment;
FIG. 4 is a sectional view of the embodiment with the regulating valve opened;
FIG. 5 is a schematic view of a part of an assembly structure in the embodiment;
FIG. 6 is a schematic structural view of an upper cover in the embodiment;
FIGS. 7 to 8 are schematic views of the structure of the rotating shaft in the embodiment;
FIG. 9 is a schematic view of the telescopic rod according to the embodiment;
FIG. 10 is a schematic three-dimensional structure of a roller according to an embodiment;
FIGS. 11-13 are schematic views of the roller structure in the embodiment;
FIG. 14 is a schematic three-dimensional structure of a driving rod in the embodiment;
FIG. 15 is a schematic view of the working structure of some parts of the embodiment;
FIG. 16 is a schematic view of the working structure of some parts in the embodiment.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1-16, is a preferred embodiment of the present invention.
A regulator valve, comprising:
the valve body 1 is provided with a valve body through hole therein, the valve body through hole comprises a fine hole 1B, a cone platform hole 1a and a reaming hole 1c from top to bottom, the inner wall of the cone platform hole 1a of the valve body 1 is a sealing surface, the two sides of the valve body 1 are symmetrically provided with a first through hole A and a second through hole B, and the first through hole A and the second through hole B are communicated with the cone platform hole 1 a.
And the valve core 2 is arranged in the through hole of the valve body and consists of a connecting rod 2B, a valve core main body 2c and a sliding rod 2d from top to bottom, the valve core main body 2c is in a cone frustum shape and can be matched with the cone frustum hole 1a to form sealing, and the on-off between the first through-flow port A and the second through-flow port B can be controlled by rotating the valve core 2. The valve core main body 2c is provided with a trapezoidal through hole 2 a.
And the bottom cover 3 is fixedly connected to the lower end of the valve body 1 and used for sealing the reaming hole 1c, a bottom cover through hole is formed in the bottom cover 3, and the sliding rod 2d penetrates through the bottom cover through hole and extends out of the lower portion of the bottom cover 3.
Upper cover 4, fixed connection is used for sealing pore 1b in 1 upper end of valve body, it is supreme by apron 4a from down, track piece 4b, link 4d and mounting bracket 4c are constituteed, wherein be equipped with the apron through-hole on the apron 4a, track piece 4b is connected through four stands with apron 4a, form cavity 4h in the middle of it, be equipped with the square sliding tray 4e that runs through track piece 4a on the track piece 4a, the round hole 4f runs through track piece 4b and the axis is parallel with sliding tray 4e, still be equipped with axle 4g on the track piece 4b, be equipped with the rectangle window on the link 4d, axle 4g, link 4d and mounting bracket 4c form a U-shaped support frame.
And the motor 9 is arranged on the mounting frame 4 c. The motor 9 is a stepping motor.
And the telescopic rod 6 consists of a connecting plate 6c, a sliding rod 6a and a cylindrical pin 6b from bottom to top, wherein a U-shaped open slot 6d is formed in the connecting plate 6c, and the sliding rod 6a can be matched in the sliding slot 4e in a vertically sliding mode.
The rotating shaft 7 is composed of a rotating disc 7a and a rotating shaft main body 7b, 4U-shaped grooves 7c are uniformly distributed on the rotating disc 7a along the circumferential direction, the rotating shaft main body 7b is a stepped rod body with small diameters at two ends and a large diameter in the middle, the small diameter part at one end is connected with the rotating disc 7a, the small diameter part at the other end is matched with a round hole 4f, the rotating shaft 7 can rotate in the round hole 4f, and a blind hole with a square groove is further formed in the rotating shaft main body 7 b.
The gyro wheel 8, the gyro wheel 8 is installed on axle 4g, the U-shaped support frame that link 4d and mounting bracket 4c formed, its one end and motor 9's output shaft fixed connection, the other end rotates with axle 4g to be connected, the side of gyro wheel 8 still is equipped with first helicla flute 8b of leading that communicates each other and encircle along its circumferencial direction, second helicla flute 8c and horizontal groove 8a, cylindric lock 6b passes rectangular window and stretches into first helicla flute 8b, in second helicla flute 8c and the horizontal groove 8a, pass through when gyro wheel 8 rotates, cylindric lock 6b can drive telescopic link 6 up-and-down motion, gyro wheel 8 downside is the eccentric arch 8d that is equipped with still, it can insert in U-shaped groove 7c when gyro wheel 8 rotates, thereby dial carousel 7a makes gyro wheel 8 can drive rotation axis 7 and rotate.
The transmission rod 5 consists of a sliding part 5a, a rotating shaft part 5b and a connecting part 5c, wherein the sliding part 5a is provided with a flat key and is matched with a blind hole with a square groove on a rotating shaft main body 7b, so that the transmission rod 5 and the rotating shaft 7 can slide mutually and can also rotate along with the rotating shaft 7, the rotating shaft part 5b is provided with an annular groove, an open groove 6d is clamped in the annular groove, the transmission rod 5 can move up and down along with the telescopic rod 6 without hindering the rotation of the transmission rod, the connecting part 5c penetrates through a cover plate through hole to be fixedly connected with the connecting rod 2b, and the transmission rod 5 can drive the valve core 2 to rotate and slide up and.
The working principle and the process of the regulating valve pair are as follows:
when in use, the first through-flow port A and the second through-flow port B are respectively connected into a pipeline.
As shown in fig. 1, at this time, the regulating valve is in a closed state, and we assume that this time is an initial state, at this time, the cylindrical pin 6b is located at a junction of the first spiral groove 8b and the second spiral groove 8c, the telescopic rod 6 is in a contracted state, the valve element 2 is attached to the valve body 1 to generate sealing, firstly, the motor 9 drives the roller 8 to rotate clockwise, the cylindrical pin 6b enters the first spiral groove 8b, due to the cooperation between the cylindrical pin 6b and the first spiral groove 8b, the telescopic rod 6 vertically moves downward, so that the valve element 2 is driven to move downward through the transmission rod 5, at this time, the protrusion 8d does not enter the U-shaped groove 7c due to an angle problem, so that the rotating shaft 7 does not rotate in the process, so that the valve element 2 only descends and does not rotate in the process, and the sealing surface. The motor 9 continues to rotate clockwise, the cylindrical pin 6B enters the horizontal groove 8a from the first spiral groove 8B, at this time, the telescopic rod 6 extends to the lowest position, and the telescopic rod 6 is kept still in the process, when the cylindrical pin 6B just enters the horizontal groove 8a, the protrusion 8d is also simultaneously inserted into the U-shaped groove 7c (as shown in fig. 13), as the roller 8 rotates, the protrusion 8d stirs the rotary disc 7a to rotate along with the rotary disc 7a until the cylindrical pin 6B just enters the second spiral groove 8c from the horizontal groove 8a, at this time, the protrusion 8d is just separated from the U-shaped groove 7c, the rotary shaft 7 rotates 90 degrees in the rotating process and drives the valve core 2 to rotate 90 degrees, the trapezoidal through hole 2a on the valve core main body 2c is parallel to the first through-flow port a and the second through-flow port B (as shown in fig. 3), the motor 9 drives the roller 8 to continue to rotate, and the cylindrical pin 6, due to the cooperation between the cylindrical pin 6b and the second spiral groove 8c, the telescopic rod 6 moves vertically upward, thereby driving the valve core 2 to move upwards through the transmission rod 5, at the moment, the bulge 8d is separated from the U-shaped groove 7c, the rotation shaft 7 is not rotated in this process, and when the cylindrical pin 6 reaches the intersection of the first spiral groove 8b and the second spiral groove 8c, the motor 9 stops rotating, the valve core 2 is jointed with the valve body 1, no abrasion is generated, when the regulating valve is in an open state (as shown in figure 2), in the process of changing the regulating valve from the closed state to the open state, the roller 8 rotates for one circle, the valve core 2 descends to be separated from the valve body 1, rotates 90 degrees, ascends to be attached to the valve body 1, opens the passage, and opens the regulating valve, and the valve core 2 and the valve body 1 are not abraded in the process, so that the service life can be prolonged; similarly, when the regulating valve is changed from an open state to a closed state, the roller 8 rotates for a circle, the valve core 2 descends to be separated from the valve body 1, then rotates 90 degrees, ascends to be attached to the valve body 1, and closes the passage, so that the regulating valve is closed, and the valve core 2 and the valve body 1 are not abraded in the process, so that the service life can be prolonged; the working principle of the regulating valve disclosed by the invention generates circulation.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (3)
1. The utility model provides a governing valve, includes valve body (1), case (2), bottom (3) and upper cover (4), its characterized in that:
a valve body through hole is formed in the valve body (1), the valve body through hole comprises a fine hole (1B), a conical table hole (1a) and a hole expanding hole (1c) from top to bottom, the inner wall of the conical table hole (1a) of the valve body (1) is a sealing surface, a first through flow port (A) and a second through flow port (B) are symmetrically formed in two sides of the valve body (1), and the first through flow port (A) and the second through flow port (B) are communicated with the conical table hole (1 a); the valve core (2) is arranged in the through hole of the valve body and consists of a connecting rod (2B), a valve core main body (2c) and a sliding rod (2d) from top to bottom, the valve core main body (2c) is in a cone frustum shape and can be matched with the cone frustum hole (1a) to form sealing, and the valve core (2) is rotated to control the connection and disconnection between the first through hole (A) and the second through hole (B); the bottom cover (3) is fixedly connected to the lower end of the valve body (1) and used for closing the reaming hole (1c), a bottom cover through hole is formed in the bottom cover, and the sliding rod (2d) penetrates through the bottom cover through hole and extends out to the lower side of the bottom cover (3); the upper cover (4) is fixedly connected to the upper end of the valve body (1) and used for sealing the fine hole (1b), the upper cover is composed of a cover plate (4a), a track block (4b), a connecting frame (4d) and a mounting frame (4c) from bottom to top, a cover plate through hole is formed in the cover plate (4a), the track block (4b) is connected with the cover plate (4a) through four stand columns, a cavity (4h) is formed in the middle of the track block, a square sliding groove (4e) penetrating through the track block (4a) is formed in the track block (4a), a round hole (4f) penetrates through the track block (4b) and is parallel to the sliding groove (4e), a shaft (4g) is further arranged on the track block (4b), a rectangular window is formed in the connecting frame (4d), and the shaft (4g), the connecting frame (4d) and the mounting frame; further comprising:
the motor (9) is arranged on the mounting rack (4 c);
the telescopic rod (6) consists of a connecting plate (6c), a sliding rod (6a) and a cylindrical pin (6b) from bottom to top, wherein the connecting plate (6c) is provided with a U-shaped open slot (6d), and the sliding rod (6a) can be matched in the sliding slot (4e) in a vertically sliding manner;
the rotating shaft (7) consists of a rotating disc (7a) and a rotating shaft main body (7b), 4U-shaped grooves (7c) are uniformly distributed on the rotating disc (7a) along the circumferential direction, the rotating shaft main body (7b) is a stepped rod body with small diameters at two ends and a large diameter in the middle, the small diameter part at one end is connected with the rotating disc (7a), the small diameter part at the other end is matched with a round hole (4f), so that the rotating shaft (7) can rotate in the round hole (4f), and a blind hole with a square groove is further arranged in the rotating shaft main body (7 b);
the roller (8), the roller (8) is arranged on a U-shaped supporting frame formed by the shaft (4g), the connecting frame (4d) and the mounting frame (4c), one end of the roller is fixedly connected with an output shaft of a motor (9), the other end of the roller is rotationally connected with a shaft (4g), the side surface of the roller (8) is also provided with a first spiral groove (8b), a second spiral groove (8c) and a horizontal groove (8a) which are communicated with each other and surround along the circumferential direction of the roller, a cylindrical pin (6b) penetrates through a rectangular window and extends into the first spiral groove (8b), the second spiral groove (8c) and the horizontal groove (8a), when the roller (8) rotates, the cylindrical pin (6b) can drive the telescopic rod (6) to move up and down, the lower side of the roller (8) is eccentrically provided with a bulge (8d), the rotary table can be inserted into the U-shaped groove (7c) when the roller (8) rotates, so that the rotary table (7a) is shifted to enable the roller (8) to drive the rotating shaft (7) to rotate;
the transmission rod (5) is composed of a sliding part (5a), a rotating shaft part (5b) and a connecting part (5c), the sliding part (5a) is provided with a flat key and is matched with a blind hole with a square groove in a rotating shaft main body (7b), so that the transmission rod (5) and the rotating shaft (7) can slide mutually and can also rotate along with the rotating shaft (7), the rotating shaft part (5b) is provided with an annular groove, an open groove (6d) is clamped in the annular groove, the transmission rod (5) can follow the up-and-down movement of the telescopic rod (6) and cannot be hindered from rotating, the connecting part (5c) penetrates through a cover plate through hole to be fixedly connected with the connecting rod (2b), and the transmission rod (5) can drive the valve core (2) to rotate and slide up.
2. A regulator valve according to claim 1, wherein: the motor (10) is a stepping motor.
3. A regulator valve according to claim 1, wherein: the valve core main body (2c) is provided with a trapezoidal through hole (2 a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910478618.1A CN110107710B (en) | 2019-06-03 | 2019-06-03 | Regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910478618.1A CN110107710B (en) | 2019-06-03 | 2019-06-03 | Regulating valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110107710A CN110107710A (en) | 2019-08-09 |
| CN110107710B true CN110107710B (en) | 2020-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910478618.1A Active CN110107710B (en) | 2019-06-03 | 2019-06-03 | Regulating valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN110107710B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114180735A (en) * | 2021-11-18 | 2022-03-15 | 北京卫星制造厂有限公司 | Portable water treatment device |
| CN114215923B (en) * | 2021-12-17 | 2024-04-12 | 油威力液压科技股份有限公司 | Large-flow plug-in electrohydraulic servo valve with valve core combined in horizontal rotation mode |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6123577U (en) * | 1984-07-17 | 1986-02-12 | 株式会社 藤井合金製作所 | electric valve |
| US4794309A (en) * | 1987-08-26 | 1988-12-27 | Bailey Japan Co., Ltd. | Electric actuator for a control valve |
| CN104930216A (en) * | 2015-06-15 | 2015-09-23 | 李华良 | Double-control cone valve |
| CN206802363U (en) * | 2017-03-17 | 2017-12-26 | 南通捷瑞阀门有限公司 | A kind of bronze plug valve |
| CN207989857U (en) * | 2017-12-22 | 2018-10-19 | 郑州多蒙控制技术有限公司 | A kind of electronic keying bindiny mechanism for the telescopic valve of valve rod |
| CN208348553U (en) * | 2018-06-04 | 2019-01-08 | 慎江阀门有限公司 | A kind of plug valve |
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2019
- 2019-06-03 CN CN201910478618.1A patent/CN110107710B/en active Active
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| CN110107710A (en) | 2019-08-09 |
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