CN114857340A

CN114857340A - Valve control device with remote monitoring function

Info

Publication number: CN114857340A
Application number: CN202210481803.8A
Authority: CN
Inventors: 严维建
Original assignee: Changzhou Yimaikesi Automation Technology Co ltd
Current assignee: Changzhou Yimaikesi Automation Technology Co ltd
Priority date: 2022-05-05
Filing date: 2022-05-05
Publication date: 2022-08-05

Abstract

The invention discloses a valve control device with a remote monitoring function, which comprises a valve body, wherein a feeding pipe and a discharging pipe are connected on the valve body, a pressure sensor is arranged in the feeding pipe, the valve body is provided with a box body through a supporting rod, a flow control assembly is arranged on the box body, a working cavity is arranged in the box body, a piston is slidably arranged in the working cavity, a piston rod is arranged on the piston, a sliding hole is formed in the bottom of the box body, the piston rod penetrates through the sliding hole, a valve core is arranged in the valve cavity of the valve body, a valve hole is formed in the valve cavity, a valve rod is arranged on the valve core, when the valve core limits the lower flowing speed, the material in the feeding pipe is extruded, so that the material can generate acting force on the pressure sensor, and the pressure sensor can feed back data to a far terminal under the condition in the feeding pipe, the valve condition is remotely monitored, and at the moment, the remote terminal can automatically adjust the valve through the flow control assembly.

Description

Valve control device with remote monitoring function

Technical Field

The invention relates to the technical field of valve control, in particular to a valve control device with a remote monitoring function.

Background

The valve control device is an actuating mechanism and control valve combination in an automatic control system. The automatic control system is used for receiving signals sent by a regulator or a computer (DCS, PLC and the like) and regulating the flow rate of a process medium according to the position and the characteristics of the automatic control system in a process pipeline, so that a controlled automatic instrument is in a range required by a production process.

However, the existing valve actuator cannot realize remote monitoring, cannot monitor the condition of the valve control device in real time at any time, cannot remotely control the condition in the valve control device, mostly can realize the control of the valve through manual operation, cannot timely perform corresponding operation on the condition in the valve, and is easy to reduce the service life of the valve.

Disclosure of Invention

The present invention is directed to a valve control device with remote monitoring function, which solves the above problems of the prior art.

In order to solve the technical problems, the invention provides the following technical scheme: a valve control device with a remote monitoring function comprises a valve body, wherein a feeding pipe and a discharging pipe are connected onto the valve body, a pressure sensor is installed in the feeding pipe and connected with a remote terminal, a box body is installed on the valve body through a supporting rod and located below the box body, a flow control assembly is arranged on the box body, a working chamber is arranged in the box body, a piston is installed in the working chamber in a sliding mode, a piston rod is installed on the piston, a sliding hole is formed in the bottom of the box body and penetrates through the sliding hole, a valve core is arranged in the valve cavity of the valve body, a valve hole is formed in the valve cavity, a valve rod is installed on the valve core and penetrates through the valve hole and is connected with the piston rod, and the feeding pipe and the discharging pipe are respectively connected with the valve cavity of the valve body, the flow velocity of material can be controlled through the valve core in the valve cavity, when the valve core restriction flow velocity is lower, the extrusion of material in the feed pipe can be caused, thereby enabling the material to produce acting force to the pressure sensor, and then letting the pressure sensor carry out data feedback with the condition in the feed pipe to a remote terminal, realizing the remote monitoring to the valve condition, at this moment, the remote terminal can realize the automatic adjustment to the valve through the flow control subassembly.

As a preferred technical scheme, the valve rod is a telescopic rod, so that the valve rod can rotate the valve core under the condition of being driven by the piston rod, and meanwhile, the valve core cannot be longitudinally moved.

As a preferred technical scheme, the flow control assembly comprises a pressure sensor, a working pump, a controller, a first pipeline, a second pipeline, a first connecting hole, a second connecting hole and a displacement sensor;

the working pump is installed on the box body, the controller is installed on the working pump, the first pipeline and the second pipeline are connected onto the working pump, the working chamber forms an upper oil liquid chamber and a lower oil liquid chamber through the piston, the upper oil liquid chamber is located above the piston, the lower oil liquid chamber is located below the piston, the first connecting hole is formed in the upper portion of the working chamber, the second connecting hole is formed in the lower portion of the working chamber, the first pipeline is connected with the first connecting hole, the second pipeline is connected with the second connecting hole, the piston rod is provided with the displacement sensor, the controller and the displacement sensor are both connected with the remote terminal, when the pressure in the feeding pipe is too large, the remote terminal controls the working pump to rotate forwardly through the controller, at the moment, the working pump can suck oil liquid in the upper oil chamber through the first pipeline and convey the oil liquid to the lower oil chamber through the second pipeline, the oil in the upper oil chamber is transferred into the lower oil chamber, the piston can be lifted through the increase of the oil amount in the lower oil chamber, at the moment, under the action of the oil one-level utilization assembly, the piston can drive the piston rod to rotate and move upwards, the valve rod can be rotated, the opening angle of the valve core is increased, the flow of materials is increased, the pressure reduction in the feeding pipe is realized, when the pressure in the feeding pipe is too low, the remote terminal controls the work pump to rotate reversely through the controller, at the moment, the work pump can suck the oil in the lower oil chamber through the second pipeline, the oil is conveyed into the upper oil chamber through the first pipeline, along with the transfer of the oil in the lower oil chamber into the upper oil chamber, the piston can move downwards through the increase of the oil amount in the upper oil chamber, under the action of the oil one-level utilization assembly, the piston can drive the piston rod to rotate and move downwards, and then can rotate the valve rod, reduce the opening angle of case, reduce the flow of material, realize the pressure boost to in the feed tube for the velocity of flow of material.

As a preferred technical scheme, the piston is provided with an oil primary utilization component and an oil secondary utilization component, and the oil primary utilization component provides operation drive for the oil secondary utilization component.

As the preferred technical scheme, the oil first-level utilization assembly comprises a concave surface, a rotating ring and a fan plate;

the both ends terminal surface of piston all is equipped with the concave surface, and the change is installed at the both ends of piston, the fan board is installed to one side that the piston was kept away from to the change, flows into oiling liquid chamber or lower oiling liquid chamber inner room fast when fluid, and the effort that is favorable to concentrating fluid through the concave surface is on the piston, and at this moment, when fluid flows through the change, the mobile effort of fluid produces the motive force to the fan board to can let the fan board rotate when the change drives the piston and shifts up or descend.

According to a preferable technical scheme, the oil liquid secondary utilization assembly comprises a cavity, an extrusion plate, an extrusion air bag, a tightening spring, a connecting rod, a through hole, a sealing groove, a sealing ring, a pressurization air bag and an extrusion pad;

the piston is internally provided with a cavity, an extrusion plate is arranged in the cavity in a sliding manner and is connected with the cavity through an extrusion air bag, one side, far away from the extrusion air bag, of the extrusion plate is connected with the cavity through a tightening spring, one side, connected with the tightening spring, of the extrusion plate is provided with a connecting rod, the inner wall, close to the swivel, of the cavity is provided with a through hole, the connecting rod penetrates through the through hole and is connected with the swivel, the side wall of the piston is provided with a sealing groove, a sealing ring is sleeved in the sealing groove, a pressurizing air bag is sleeved in the sealing groove and is provided with an extrusion cushion, the sealing groove is communicated with the cavity through a third connecting hole, the pressurizing air bag is connected with the extrusion air bag through a first air pipe, the first air pipe penetrates through a third connecting hole, and when the piston moves in the working cavity along with the increase of oil pressure in the upper oil liquid chamber or the lower oil chamber, fluid can extrude the swivel, thereby can let the swivel pass through the connecting rod and drive the interior stripper plate extension of cavity and tighten up the spring and remove, and extrude the extrusion gasbag, make in the extrusion gasbag gas can enter into the pressure boost gasbag through first trachea, volume increase along with the pressure boost gasbag can drive the dummy block and extrude the sealing ring, and then can increase the sealed effect between sealing ring and the work intracavity inner wall, avoid the piston to remove the flow of in-process fluid, the guarantee piston can realize under the effort of fluid and remove.

As a preferred technical scheme, the pressurizing air bag is of an annular structure, the diameter of the pressurizing air bag is smaller than that of the sealing ring, the cross section of the pressurizing air bag is of a U-shaped structure, the extrusion pad is located in a U-shaped groove of the pressurizing air bag, when a large amount of gas is gushed into the pressurizing air bag, the U-shaped groove of the pressurizing air bag can be turned outwards, and then the extrusion acting force of the extrusion pad on the sealing ring can be increased.

As a preferred technical scheme, the box body is provided with a limiting assembly, and the piston rod is clamped and fixed through the limiting assembly.

According to a preferred technical scheme, the limiting assembly comprises a box body, a moving plate, a supporting spring, a moving rod, a through hole, a clamping plate, an air hole, a second air pipe and a one-way air valve;

the box body is installed at the bottom of the box body, the movable plate is installed in the box body through the supporting spring, the movable plate is in sliding fit with the interior of the box body, the movable plate is installed on one side, away from the supporting spring, of the movable plate, the moving rod is installed on the box body, the through hole is formed in the through hole, the clamping plate is installed at the end portion, away from the movable plate, of the moving plate, the air hole is formed in one side, away from the through hole, of the box body, the air hole is connected with the second pipeline through the second air pipe, the one-way air valve is installed on the second air pipe, the oil can be guaranteed not to flow into the second air pipe through the one-way air valve, when the piston control piston rod moves, a venturi phenomenon is formed through liquid flowing in the second pipeline, so that suction can be generated in the box body through the second air pipe, at the moment, the suction effect of air flow is utilized, the movable plate supporting spring can be compressed to move transversely, can drive the clamp plate through the carriage release lever and carry out synchronous motion, relieve the clamp plate and press from both sides tight fixed to the piston rod, when the piston was unmovable in the working chamber, can support the movable plate in the tight box body under supporting spring's elastic force effect, and then can ensure the clamp plate to the tight fixed action of clamp of piston rod, can avoid the case to drive the rotation valve rod under material flow action power and external factor, ensure the position stability of piston in the working chamber.

As a preferred technical scheme, the clamping plate is provided with a protection pad, and the clamping plate can be prevented from wearing the piston rod through the protection pad.

Compared with the prior art, the invention has the following beneficial effects:

1. because the inlet pipe is connected with the valve pocket of valve body respectively with the discharging pipe, the flow velocity of material can be controlled through the valve pocket inner valve core, when case restriction flow velocity is lower, can lead to the material extrusion in the inlet pipe, thereby enable the material to produce the effort to pressure sensor, and then let pressure sensor carry out data feedback with the condition in the inlet pipe to the terminal of keeping away, realize the remote monitoring to the valve condition, at this moment, remote terminal can realize the automatic adjustment to the valve through the flow control subassembly.

2. When the pressure in the feed pipe is too high, the remote terminal controls the working pump to rotate forwards through the controller, at the moment, the working pump can suck oil in the upper oil chamber through the first pipeline, the oil is conveyed into the lower oil chamber through the second pipeline, the piston can be lifted up through increasing the oil amount in the lower oil chamber along with the oil in the upper oil chamber is conveyed into the lower oil chamber, at the moment, under the action of the oil one-stage utilization assembly, the piston can drive the piston rod to rotate and move upwards and further rotate the valve rod, the opening angle of the valve core is increased, the flow of materials is increased, the pressure reduction in the feed pipe is realized, when the pressure in the feed pipe is too low, the remote terminal controls the working pump to rotate backwards through the controller, at the moment, the working pump can suck the oil in the lower oil chamber through the second pipeline and convey the oil into the upper oil chamber through the first pipeline, the piston can move downwards through the increase of the oil amount in the oil feeding chamber, and the piston can be driven by the piston to rotate and move downwards under the action of the oil level utilization assembly, so that the valve rod can be rotated, the opening angle of the valve core is reduced, the flow of materials is reduced, the pressurization in the feed pipe is realized, and the flow rate of the materials is accelerated.

3. When fluid flowed into last oil chamber or lower oil chamber inner room fast, the effort that is favorable to concentrating fluid through the concave surface is on the piston, and at this moment, when fluid flowed through the change, the mobile effort of fluid produced the driving force to the sector to can let the sector rotate when driving the piston through the change and shift up or descend.

4. Along with the increase of the indoor oil pressure of oiling room or lower fluid, make the piston when the work intracavity removes, fluid can extrude the swivel, thereby can let the swivel pass through the connecting rod and drive the extension of stripper plate in the chamber and tighten up the spring and remove, and extrude the extrusion gasbag, make in the extrusion gasbag gas can enter into the pressure boost gasbag through first trachea, can drive the dummy block along with the volume increase of pressure boost gasbag and extrude the sealing ring, and then can increase the sealed effect between sealing ring and the work intracavity wall, avoid the piston to remove the flow of in-process fluid, the guarantee piston can realize under the effort of fluid and remove.

5. When the piston controls the piston rod to move, a Venturi phenomenon is formed by liquid flowing in the second pipeline, so that suction can be generated in the box body through the second air pipe, at the moment, the movable plate can compress the supporting spring to move transversely by utilizing the suction effect of air flow, and meanwhile, the movable plate can drive the clamping plate to move synchronously through the movable rod, the clamping and fixing of the clamping plate on the piston rod are released, when the piston is not moved in the working cavity, the movable plate in the box body can be abutted under the elastic action of the supporting spring, the clamping and fixing effect of the clamping plate on the piston rod can be further ensured, the situation that the valve core drives the rotating valve rod under the action force of material flow and external factors can be avoided, and the position stability of the piston in the working cavity is ensured.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the cutaway structure of FIG. 1;

FIG. 3 is a schematic view of the piston structure of the present invention;

FIG. 4 is a cross-sectional view of FIG. 3;

FIG. 5 is a schematic view of a pressurized bladder of the present invention;

FIG. 6 is a schematic view of the cutaway structure of FIG. 5;

FIG. 7 is an enlarged view of the structure at a in FIG. 4;

FIG. 8 is an enlarged view of the structure of FIG. 6 at b;

FIG. 9 is an enlarged view of the structure at c in FIG. 2;

in the figure: 1. a valve body; 2. a feed pipe; 3. a discharge pipe; 4. a support bar; 5. a box body; 6. a working chamber; 7. a piston; 8. a piston rod; 9. a slide hole; 10. a valve cavity; 11. a valve core; 12. a valve bore; 13. a valve stem; 1401. a pressure sensor;

14. a flow control assembly; 1402. a working pump; 1403. a controller; 1404. a first conduit; 1405. a second conduit; 1406. a first connection hole; 1407. a second connection hole; 1408. a displacement sensor;

15. an oil liquid first-stage utilization assembly; 1501. a concave surface; 1502. rotating the ring; 1503. a fan plate;

16. an oil liquid secondary utilization component; 1601. a chamber; 1602. a pressing plate; 1603. extruding the air bag; 1604. tightening the spring; 1605. a connecting rod; 1606. perforating; 1607. a sealing groove; 1608. a seal ring; 1609. a pressurizing air bag; 1610. pressing the cushion; 1611. a third connection hole; 1612. a first air pipe;

17. a restraining component; 1701. a box body; 1702. moving the plate; 1703. a support spring; 1704. a travel bar; 1705. a through hole; 1706. a clamping plate; 1707. a protective pad; 1708. air holes; 1709. a second air pipe; 1710. a one-way air valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): as shown in fig. 1 to 9, the present invention provides the following technical solutions: a valve control device with a remote monitoring function comprises a valve body 1, wherein a feeding pipe 2 and a discharging pipe 3 are connected to the valve body 1, a pressure sensor 1401 is installed in the feeding pipe 2, the pressure sensor 1401 is connected with a remote terminal, a box body 5 is installed on the valve body 1 through a supporting rod 4, the valve body 1 is located below the box body 5, a flow control assembly 14 is arranged on the box body 5, a working chamber 6 is arranged in the box body 5, a piston 7 is slidably installed in the working chamber 6, a piston rod 8 is installed on the piston 7, a sliding hole 9 is formed in the bottom of the box body 5, the piston rod 8 penetrates through the sliding hole 9, a valve core 11 is arranged in a valve chamber 10 of the valve body 1, a valve hole 12 is formed in the valve chamber 10, a valve rod 13 is installed on the valve core 11, and the valve rod 13 penetrates through the valve hole 12 and is connected with the piston rod 8, because inlet pipe 2 and discharging pipe 3 are connected with the valve pocket 10 of valve body 1 respectively, the velocity of flow of material can be controlled through case 11 in the valve pocket 10, when case 11 restriction velocity of flow was lower, can lead to the material extrusion in the inlet pipe 2, thereby enable the material to produce the effort to pressure sensor 1401, and then let pressure sensor 1401 carry out data feedback with the condition in the inlet pipe 2 to distant terminal, realize the remote monitoring to the valve condition, at this moment, remote terminal can realize the automatic adjustment to the valve through flow control subassembly 14.

The valve rod 13 is an expansion rod, so that the valve rod 13 can rotate the valve core 11 under the condition of being driven by the piston rod 8, and meanwhile, the valve core 11 cannot be longitudinally moved.

As shown in fig. 1-2, the flow control assembly 14 includes a pressure sensor 1401, a working pump 1402, a controller 1403, a first pipe 1404, a second pipe 1405, a first connection hole 1406, a second connection hole 1407, and a displacement sensor 1408;

the working pump 1402 is installed on the box body 5, the controller 1403 is installed on the working pump 1402, the first pipeline 1404 and the second pipeline 1405 are connected to the working pump 1402, the working chamber 6 forms an upper oil liquid chamber and a lower oil liquid chamber through the piston 7, the upper oil liquid chamber is located above the piston 7, the lower oil liquid chamber is located below the piston 7, the first connecting hole 1406 is formed in the upper portion of the working chamber 6, the second connecting hole 1407 is formed in the lower portion of the working chamber 6, the first pipeline 1404 is connected with the first connecting hole 1406, the second pipeline 1405 is connected with the second connecting hole 1407, the displacement sensor 1408 is installed on the piston rod 8, the controller 1403 and the displacement sensor 1408 are both connected with a remote terminal, when the pressure in the feeding pipe 2 is too high, the remote terminal controls the working pump 1402 to operate through forward rotation of the controller 1403, at this time, the working pump 1402 can suck the oil liquid in the upper oil liquid chamber through the first pipeline 1404, then the oil is conveyed into the lower oil chamber through the second pipeline 1405, as the oil in the upper oil chamber is transferred into the lower oil chamber, the piston 7 can be lifted up through the increase of the oil amount in the lower oil chamber, at this time, under the action of the oil primary utilization component 15, the piston 7 can drive the piston rod 8 to rotate and move up, and further the valve rod 13 can be rotated, the opening angle of the valve core 11 is increased, the flow of the material is increased, the pressure reduction in the feeding pipe 2 is realized, when the pressure in the feeding pipe 2 is too low, the remote terminal controls the work pump 1402 to rotate reversely through the controller 1403, at this time, the work pump 1402 can suck the oil in the lower oil chamber through the second pipeline 1405, and then the oil is conveyed into the upper oil chamber through the first pipeline 1404, as the oil in the lower oil chamber is transferred into the upper oil chamber, the piston 7 can move down through the increase of the oil amount in the upper oil chamber, utilize under the effect of subassembly 15 at the fluid one-level to let piston 7 can drive piston rod 8 and rotate when moving down, and then can rotate valve rod 13, reduce the opening angle of case 11, reduce the flow of material, realize the pressure boost in to inlet pipe 2 for the velocity of flow of material.

The piston 7 is provided with an oil liquid first-stage utilization assembly 15 and an oil liquid second-stage utilization assembly 16, and the oil liquid first-stage utilization assembly 15 provides operation drive for the oil liquid second-stage utilization assembly 16.

As shown in fig. 2-4, the oil primary utilization assembly 15 includes a concave surface 1501, a rotary ring 1502, and a fan plate 1503;

the both ends terminal surface of piston 7 all is equipped with concave surface 1501, and the change ring 1502 is installed at the both ends of piston 7, the fan board 1503 is installed to one side that the change ring 1502 keeps away from piston 7, and when fluid flowed into last oil liquid chamber or lower oil liquid chamber inner chamber fast, be favorable to concentrating the effort of fluid on piston 7 through concave surface 1501, at this moment, when fluid flows through change ring 1502, the mobile effort of fluid produces the motive force to fan board 1503 to can let fan board 1503 pass through change ring 1502 and drive piston 7 and shift up or rotate when descending.

As shown in fig. 2-8, the oil secondary utilization assembly 16 includes a chamber 1601, a squeeze plate 1602, a squeeze bladder 1603, a take-up spring 1604, a connecting rod 1605, perforations 1606, a seal groove 1607, a seal ring 1608, a pressurized bladder 1609, a squeeze pad 1610;

a chamber 1601 is arranged in the piston 7, an extrusion plate 1602 is slidably mounted in the chamber 1601, the extrusion plate 1602 is connected with the chamber 1601 through an extrusion airbag 1603, one side of the extrusion plate 1602, which is far away from the extrusion airbag 1603, is connected with the chamber 1601 through a tightening spring 1604, one side of the extrusion plate 1602, which is connected with the tightening spring 1604, is provided with a connecting rod 1605, a through hole 1606 is formed in the inner wall of the chamber 1601, the connecting rod 1605 penetrates through the through hole 1606 and is connected with the swivel 1502, a sealing groove 1607 is formed in the side wall of the piston 7, a sealing ring 1608 is sleeved in the sealing groove 1607, a pressurization airbag 1609 is sleeved in the sealing groove 1607, an extrusion pad 1610 is mounted on the pressurization airbag 1609, the sealing groove 1607 is communicated with the chamber 1601 through a third connecting hole 1611, the pressurization airbag 1609 is connected with the extrusion airbag 1603 through a first air pipe 1612, and the first air pipe 1612 penetrates through the third connecting hole 1611, along with the indoor oil pressure increase of oiling room or lower fluid, make piston 7 when the working chamber 6 removes, fluid can extrude swivel 1502, thereby can let swivel 1502 drive the tensile spring 1604 that tightens of stripper plate 1602 in the chamber 1601 through connecting rod 1605 and remove, and extrude gasbag 1603, make in the gasbag 1603 of extrusion enter into pressure boost gasbag 1609 through first trachea 1612 in, can drive extrusion pad 1610 and extrude sealing ring 1608 along with pressure boost gasbag 1609's volume increase, and then can increase the sealed effect between sealing ring 1608 and the working chamber 6 inner wall, avoid the flow of piston 7 at removal in-process fluid, guarantee piston 7 can realize under the effort of fluid and remove.

The pressure boost gasbag 1609 is the loop configuration, and the diameter of pressure boost gasbag 1609 is less than the diameter of sealing ring 1608, the cross section of pressure boost gasbag 1609 is U type structure, and the extrusion pad 1610 is located the U type inslot of pressure boost gasbag 1609, and when gushing into gas in a large number in pressure boost gasbag 1609, the U type groove of pressure boost gasbag 1609 can turn up, and then can increase the extrusion effort of extrusion pad 1610 to sealing ring 1608.

The box body 5 is provided with a limiting component 17, and the piston rod 8 is clamped and fixed through the limiting component 17.

As shown in fig. 1-2 and 9, the limiting assembly 17 includes a box 1701, a moving plate 1702, a support spring 1703, a moving rod 1704, a through hole 1705, a clamping plate 1706, an air hole 1708, a second air pipe 1709, and a one-way air valve 1710;

a box body 1701 is arranged at the bottom of the box body 5, a moving plate 1702 is arranged in the box body 1701 through a supporting spring 1703, the moving plate 1702 is in sliding fit with the box body 1701, a moving rod 1704 is arranged at one side of the moving plate 1702 far away from the supporting spring 1703, a through hole 1705 is arranged on the box body 1701, the moving rod 1704 penetrates through the through hole 1705, a clamping plate 1706 is arranged at the end part of the moving rod 1704 far away from the moving plate 1702, an air hole 1708 is arranged at one side of the box body 1701 far away from the through hole 1705, the air hole 1708 is connected with a second pipeline 1405 through a second air pipe 1709, a one-way air valve 1710 is arranged on the second air pipe 1709, the oil can be prevented from flowing into the second air pipe 1709 through the one-way air valve 1710, when the piston 7 controls the piston rod 8 to move, a venturi phenomenon is formed through the liquid flow in the second pipeline 1405, so that the suction force can be generated in the box body 1701 through the second air pipe 1709, at this moment, by utilizing the suction effect of the air flow, the moving plate 1702 can compress the supporting spring 1703 to move transversely, and simultaneously, the moving rod 1704 can drive the clamping plate 1706 to move synchronously, so that the clamping and fixing of the clamping plate 1706 on the piston rod 8 is released, when the piston 7 is not moved in the working chamber 6, the moving plate 1702 in the box body 1701 can be abutted tightly under the elastic force effect of the supporting spring 1703, further, the clamping and fixing effect of the clamping plate 1706 on the piston rod 8 can be ensured, the valve core 11 can be prevented from driving the rotating valve rod 13 under the action force of material flow and external factors, and the position stability of the piston 7 in the working chamber 6 is ensured.

The clamping plate 1706 is provided with a protection pad 1707, and the clamping plate 1706 can be prevented from wearing the piston rod 8 through the protection pad 1707.

The working principle of the invention is as follows:

because inlet pipe 2 and discharging pipe 3 are connected with the valve pocket 10 of valve body 1 respectively, can control the flow velocity of material through case 11 in the valve pocket 10, when case 11 restriction flow velocity is lower, can lead to the material extrusion in the inlet pipe 2, thereby enable the material to produce the effort to pressure sensor 1401, and then let pressure sensor 1401 carry out data feedback with the condition in the inlet pipe 2 to distant terminal, realize the remote monitoring to the valve condition, at this moment, remote terminal can realize the automatic adjustment to the valve through flow control subassembly 14.

When the pressure in the feeding pipe 2 is too high, the remote terminal controls the working pump 1402 to rotate forwardly through the controller 1403, at this time, the working pump 1402 can suck oil in the upper oil chamber through the first pipeline 1404, the oil is conveyed into the lower oil chamber through the second pipeline 1405, along with the fact that the oil in the upper oil chamber is transferred into the lower oil chamber, the piston 7 can be lifted up through the increase of the oil amount in the lower oil chamber, at this time, under the effect of the oil primary utilization component 15, the piston 7 can drive the piston rod 8 to rotate and move upwards while the piston 7 can drive the piston rod 8 to rotate, the valve rod 13 can be rotated, the opening angle of the valve core 11 is increased, the flow of materials is increased, the pressure reduction in the feeding pipe 2 is realized, when the pressure in the feeding pipe 2 is too low, the remote terminal controls the working pump 1402 to rotate reversely through the controller 1403, at this time, the working pump 1402 can suck the oil in the lower oil chamber through the second pipeline 1405, carry oil liquid indoor again through first pipeline 1404 with fluid, along with in going over into oil liquid indoor fluid with the indoor fluid of fluid down, can make piston 7 move down through the indoor fluid volume increase of last fluid, utilize under the effect of subassembly 15 at the fluid one-level, thereby let piston 7 can drive piston rod 8 and rotate when moving down, and then can rotate valve rod 13, reduce the opening angle of case 11, reduce the flow of material, realize the pressure boost in to inlet pipe 2, accelerate the velocity of flow of material.

When fluid flows into last fluid chamber or lower fluid chamber inner chamber fast, be favorable to concentrating the effort of fluid on piston 7 through concave surface 1501, at this moment, when fluid flows through change 1502, the mobile effort of fluid produces the driving force to fan board 1503 to can let fan board 1503 rotate through change 1502 drive piston 7 and shift up or descend the while.

Along with the indoor oil pressure increase of oiling room or lower fluid, make piston 7 when the working chamber 6 removes, fluid can extrude swivel 1502, thereby can let swivel 1502 drive the tensile spring 1604 that tightens of stripper plate 1602 in the chamber 1601 through connecting rod 1605 and remove, and extrude gasbag 1603, make in the gasbag 1603 of extrusion enter into pressure boost gasbag 1609 through first trachea 1612 in, can drive extrusion pad 1610 and extrude sealing ring 1608 along with pressure boost gasbag 1609's volume increase, and then can increase the sealed effect between sealing ring 1608 and the working chamber 6 inner wall, avoid the flow of piston 7 at removal in-process fluid, guarantee piston 7 can realize under the effort of fluid and remove.

When the piston 7 controls the piston rod 8 to move, a venturi phenomenon is formed by the liquid flowing in the second pipeline 1405, so that suction can be generated in the box body 1701 through the second air pipe 1709, at the moment, the moving plate 1702 can compress the supporting spring 1703 to move transversely by utilizing the suction effect of air flow, and simultaneously, the moving rod 1704 can drive the clamping plate 1706 to move synchronously, so that the clamping and fixing of the clamping plate 1706 on the piston rod 8 are released, when the piston 7 does not move in the working cavity 6, the moving plate 1702 in the box body 1701 can be tightly abutted under the elastic force effect of the supporting spring 1703, the clamping and fixing effect of the clamping plate 1706 on the piston rod 8 can be further ensured, the valve core 11 can be prevented from driving the rotating valve rod 13 under the force of material flow action and external factors, and the position stability of the piston 7 in the working cavity 6 is ensured.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A valve control device with a remote monitoring function is characterized in that: the valve control device with the remote monitoring function comprises a valve body (1), wherein a feeding pipe (2) and a discharging pipe (3) are connected onto the valve body (1), a pressure sensor (1401) is installed in the feeding pipe (2), the pressure sensor (1401) is connected with a remote terminal, a box body (5) is installed on the valve body (1) through a supporting rod (4), the valve body (1) is located below the box body (5), a flow control assembly (14) is arranged on the box body (5), a working cavity (6) is arranged in the box body (5), a piston (7) is installed in the working cavity (6) in a sliding mode, a piston rod (8) is installed on the piston (7), a sliding hole (9) is formed in the bottom of the box body (5), the piston rod (8) penetrates through the sliding hole (9), and a valve core (11) is arranged in a valve cavity (10) of the valve body (1), and a valve hole (12) is formed in the valve cavity (10), a valve rod (13) is installed on the valve core (11), and the valve rod (13) penetrates through the valve hole (12) and is connected with the piston rod (8).

2. The valve control apparatus with remote monitoring function according to claim 1, wherein: the valve rod (13) is an expansion rod.

3. A valve control apparatus with remote monitoring function according to claim 2, characterized in that: the flow control assembly (14) comprises a working pump (1402), a controller (1403), a first pipeline (1404), a second pipeline (1405), a first connecting hole (1406), a second connecting hole (1407) and a displacement sensor (1408);

a working pump (1402) is arranged on the box body (5), a controller (1403) is arranged on the working pump (1402), a first pipeline (1404) and a second pipeline (1405) are connected to the working pump (1402), the working cavity (6) forms an upper oil liquid chamber and a lower oil liquid chamber through a piston (7), the upper oil liquid chamber is positioned above the piston (7), the lower oil chamber is positioned below the piston (7), the upper part of the working chamber (6) is provided with a first connecting hole (1406), and the lower part of the working chamber (6) is provided with a second connecting hole (1407), the first pipeline (1404) is connected with the first connecting hole (1406), the second pipeline (1405) is connected with the second connecting hole (1407), a displacement sensor (1408) is installed on the piston rod (8), the controller (1403) and the displacement sensor (1408) are both connected with a remote terminal.

4. A valve control apparatus with remote monitoring function according to claim 3, characterized in that: be equipped with fluid one-level on piston (7) and utilize subassembly (15) and fluid second grade to utilize subassembly (16), fluid one-level utilizes subassembly (15) to provide the operation drive for fluid second grade utilizes subassembly (16).

5. The valve control device with remote monitoring function according to claim 4, wherein: the oil primary utilization assembly (15) comprises a concave surface (1501), a rotating ring (1502) and a fan plate (1503);

both ends terminal surface of piston (7) all is equipped with concave surface (1501), and swivel (1502) are installed at the both ends of piston (7), sector (1503) are installed to swivel (1502) one side of keeping away from piston (7).

6. The valve control device with remote monitoring function according to claim 5, wherein: the oil secondary utilization assembly (16) comprises a chamber (1601), an extrusion plate (1602), an extrusion air bag (1603), a tightening spring (1604), a connecting rod (1605), a perforation (1606), a sealing groove (1607), a sealing ring (1608), a pressurization air bag (1609) and an extrusion pad (1610);

be equipped with cavity (1601) in piston (7), slidable mounting has stripper plate (1602) in cavity (1601), stripper plate (1602) is connected with cavity (1601) through extrusion gasbag (1603), one side that extrusion gasbag (1603) was kept away from in stripper plate (1602) is connected through tightening up spring (1604) with cavity (1601), connecting rod (1605) are installed to one side that stripper plate (1602) is connected with tightening up spring (1604), seted up on the inner wall that cavity (1601) is close to swivel (1502) perforation (1606), connecting rod (1605) run through perforation (1606) and are connected with swivel (1502), sealed groove (1607) have been seted up on the lateral wall of piston (7), sealed groove (1607) endotheca is equipped with sealing ring (1608), sealed groove (1607) endotheca is equipped with pressurization gasbag (1609), install extrusion pad (1610) on pressurization gasbag (1609), seal groove (1607) and cavity (1601) are put through third connecting hole (1611), pressure boost gasbag (1609) are connected through first trachea (1612) with extrusion gasbag (1603), first trachea (1612) run through third connecting hole (1611).

7. The valve control apparatus with remote monitoring function according to claim 6, wherein: the pressurization gasbag (1609) is of an annular structure, and the diameter of the pressurization gasbag (1609) is smaller than that of the sealing ring (1608).

8. The valve control apparatus with remote monitoring function according to claim 6, wherein: the limiting assembly (17) is arranged on the box body (5), and the piston rod (8) is clamped and fixed through the limiting assembly (17).

9. The valve control apparatus with remote monitoring function according to claim 8, wherein: the limiting assembly (17) comprises a box body (1701), a moving plate (1702), a supporting spring (1703), a moving rod (1704), a through hole (1705), a clamping plate (1706), an air hole (1708), a second air pipe (1709) and a one-way air valve (1710);

the box body (1701) is installed to the bottom of box (5), install movable plate (1702) through supporting spring (1703) in box body (1701), the inside of movable plate (1702) and box body (1701) is sliding fit, movable rod (1704) are installed to one side that supporting spring (1703) are kept away from in movable plate (1702), through-hole (1705) have been seted up on box body (1701), movable rod (1704) run through-hole (1705), and movable rod (1704) are kept away from the tip of movable plate (1702) and are installed clamping plate (1706), gas pocket (1405) have been seted up to one side that through-hole (1705) were kept away from in box body (1701), gas pocket (1708) are connected with second pipeline (1405) through second trachea (1709), install one-way pneumatic valve (1710) on second trachea (1709).

10. The valve control apparatus with remote monitoring function according to claim 9, wherein: and a protective pad (1707) is arranged on the clamping plate (1706).