CN111237477A - Electric flow regulating valve - Google Patents
Electric flow regulating valve Download PDFInfo
- Publication number
- CN111237477A CN111237477A CN202010166554.4A CN202010166554A CN111237477A CN 111237477 A CN111237477 A CN 111237477A CN 202010166554 A CN202010166554 A CN 202010166554A CN 111237477 A CN111237477 A CN 111237477A
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- valve
- valve rod
- cam
- valve body
- output shaft
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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
- 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
- F16K1/16—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 pivoted closure-members
- F16K1/18—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 pivoted closure-members with pivoted discs or flaps
- F16K1/20—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 pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member
- F16K1/2007—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 pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member specially adapted operating means therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—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 pivoted closure-members
- F16K1/18—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 pivoted closure-members with pivoted discs or flaps
- F16K1/20—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 pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member
- F16K1/2021—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 pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member with a plurality of valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/44—Details of seats or valve members of double-seat valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/52—Mechanical actuating means with crank, eccentric, or cam
- F16K31/524—Mechanical actuating means with crank, eccentric, or cam with a cam
- F16K31/52408—Mechanical actuating means with crank, eccentric, or cam with a cam comprising a lift valve
- F16K31/52441—Mechanical actuating means with crank, eccentric, or cam with a cam comprising a lift valve with a pivoted disc or flap
Abstract
The invention discloses an electric flow regulating valve, which comprises a valve and an electric actuator, wherein the valve comprises a valve body, one side of the valve body is in threaded connection with a valve cover, the valve body and the valve cover are respectively provided with a screw hole for connecting with a pipeline, a valve core is arranged inside the valve body, the valve core comprises a valve rod box, a valve rod, a cam and two sealing elements, the upper end of the valve rod penetrates out of the valve rod box, the sealing elements are arranged on the valve rod box in a sliding manner and extend into the screw holes or retract from the screw holes, and a positioning element penetrates through the valve body and is fixed; the electric actuator is internally provided with a master control module, a driving motor, a gearbox and an output shaft which are sequentially driven, and the output shaft is fixed with the valve rod through threads. According to the invention, the valve core is fixed by the valve rod box and the positioning piece, the valve rod drives the cam to rotate under the drive of the output shaft, the sealing piece moves axially in the valve body to realize the adjustment of the opening degree of the valve, the valve can be driven to be opened and closed by small force, and the valve cannot be opened due to rust.
Description
Technical Field
The invention relates to the technical field of valves, in particular to an electric flow regulating valve.
Background
In northern areas, weather is cold in winter, and at present, the main heating means is central heating. To central heating's area, the uneven condition of cold and hot often can take place in the heating period, that is to say that the water conservancy imbalance appears in two nets of heat supply, leads to some user indoor temperature higher, and some user indoor temperature is lower. In order to solve the problem, the past method is to install various water conservancy balance valves and adjust the heat supply quantity of each branch of heat supply by manually adjusting the opening degree of the valves, and the method is difficult to meet the requirements of the current heat supply enterprises. In recent years, with the progress of science and technology, intelligent heating also begins to be popularized and popularized in the heating field, but the regulation and control of a heating network are finally realized by adjusting and controlling the opening degree (or the on-off time) of a valve, so that the selection of the valve is particularly important.
At present, the electric ball valve is mostly used at the tail end of a heat supply network, and an electric heating stop valve and a small number of balance valves are used. These valves have fatal defects in practical use:
(1) the electric heating stop valve has small opening degree and large pressure loss and is easy to block;
(2) the balance valve has small drift diameter, easy blockage, complex structure and high cost;
(3) the ball body of the electric ball valve is tightly matched with the sealing pieces at two ends, and the ball body needs to be clamped and positioned by the sealing pieces at two sides, so that the electric ball valve is extremely easy to be blocked by sundries when being used in a heating system, particularly, the valve is rusted to be dead due to scaling after being used for a certain period, and cannot work normally.
In view of this, a special electric valve specially used in the heating field is urgently needed to achieve convenient operation, uneasy blockage and prolonged service life.
Disclosure of Invention
The invention aims to solve the technical problem of making up the defects of the prior art and provides the electric valve which has the advantages of small requirement on switching force, no blockage, simple structure, adjustable opening and good single linearity.
The invention is realized by the following technical means: an electric flow regulating valve comprising:
the valve comprises a valve body, one side of the valve body is in threaded connection with a valve cover, screw holes used for being connected with a pipeline are respectively formed in the valve body and the valve cover, a valve core is arranged inside the valve body, the valve core comprises a valve rod box, a valve rod rotationally arranged on the valve rod box, a cam fixed on the valve rod and two sealing elements connected with the cam, the upper end of the valve rod penetrates out of the valve rod box, the sealing elements are slidably arranged on the valve rod box and extend into the screw holes or retract from the screw holes, and a positioning element penetrates through the valve body and is fixed with the box body;
electric actuator, inside host system, driven driving motor, gearbox and output shaft in proper order, the outside correspondence of gearbox is equipped with aperture detection mechanism, the output shaft with valve rod thread tightening, electric actuator receives behind host system's the control command, through the output shaft drives valve rod, cam clockwise or anticlockwise rotation, two the sealing member outwards removes or inwards removes in step, two the screw with clearance between the sealing member diminishes or the grow to the regulation flow.
In another preferred embodiment, the cam is provided with two symmetrical eccentric bulges, the bulges are provided with arc-shaped cam grooves, the inner end of the sealing element is provided with an insertion hole, the inner end of the connecting piece is arranged in the cam groove, the outer end of the connecting piece is inserted into the insertion hole, the peripheral surface of the bulges is a working surface, along with the rotation of the cam, the inner end of the connecting piece slides in the cam groove, and the working surface is attached to the sealing element.
In another preferred embodiment, the inner end of the screw hole is provided with an annular boss, the outer peripheral surface of the sealing element is a conical surface, and the annular boss and the conical surface form a liquid flowing space.
In another preferred embodiment, a valve rod cover is clamped at the top of the valve rod box, the top end of the valve rod cover is abutted against the inner wall of the valve body, a positioning hole is formed in the bottom of the valve rod box, a threaded fixing hole is formed in the bottom of the valve body, the positioning piece is rod-shaped and penetrates through the fixing hole to enter the positioning hole, and the sealing cap is screwed into the fixing hole to fix the positioning piece.
In another preferred embodiment, an integrally formed valve rod sleeve is arranged at the top of the valve rod cover, a protruding valve rod hole is formed in the valve body, a valve rod groove is formed in the inner wall of the bottom of the valve body, a sealing ring is arranged between the valve rod and the valve rod sleeve, and the valve rod sequentially penetrates through the valve rod hole, the valve rod cover and the cam from top to bottom and is arranged in the valve rod groove.
In another preferred embodiment, a guide groove is provided on the inner side surface of the valve rod cover, and the connecting piece is placed in the guide groove.
In another preferred embodiment, the connecting member is U-shaped.
In another preferred embodiment, an opening detection module, a temperature measurement module, a communication module, a motor driving module, and a power supply module are arranged in the main control module, and the opening detection module receives a signal of the opening detection mechanism.
In another preferred embodiment, the top end of the valve rod is flat, is clamped with the output shaft, and fixes the valve rod and the output shaft through a nut.
Compared with the prior art, the valve core is fixed by the valve rod box and the positioning piece, the valve rod drives the cam to rotate under the drive of the output shaft, the sealing piece moves axially in the valve body to realize the adjustment of the opening degree of the valve, and the left sealing piece and the right sealing piece are not contacted with the valve body under other states except the closing state of the valve, so the required force is very small, the valve can be driven to be opened and closed by small force, and the left sealing piece and the right sealing piece are not contacted with the valve body basically, and the valve cannot be rusted and opened.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a schematic structural diagram of an electric actuator according to the present invention;
FIG. 3 is a functional diagram of a main control module according to the present invention;
FIG. 4 is a perspective view of the valve of the present invention;
FIG. 5 is a longitudinal cross-sectional view of the valve of the present invention;
FIG. 6 is a transverse cross-sectional view of the valve of the present invention;
FIG. 7 is an isometric view of a valve cartridge in the flow control valve of the present invention;
FIG. 8 is a perspective view of the seal of the present invention;
fig. 9 is a perspective view of a valve stem cover of the present invention.
Detailed Description
The invention provides an electric flow regulating valve, wherein a valve core is fixed by a valve rod box and a positioning piece, a cam is driven by a valve rod to rotate by an output shaft, a sealing piece moves axially in a valve body to realize the regulation of the opening degree of the valve, and the left sealing piece and the right sealing piece are not contacted with the valve body under other states except the closing state of the valve, so the required force is very small, namely the valve can be driven to open and close by small force, and the left sealing piece and the right sealing piece are not contacted with the valve body basically, and the valve cannot be rusted and opened. The invention is described in detail below with reference to the drawings and the detailed description.
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
As shown in fig. 1, the present invention provides an electric flow control valve including a valve 20 and an electric actuator 10.
As shown in fig. 4, 5 and 6, the valve 20 includes a valve body 23, one side of the valve body 23 is in threaded connection with a valve cover 21, threaded holes 230 are respectively formed in the valve body 23 and the valve cover 21 for connection with a pipeline, a valve core 22 is disposed inside the valve body 23, the valve core 22 includes a valve stem box 222, a valve stem 224 rotatably disposed on the valve stem box 222, a cam 228 fixed on the valve stem 224, and two sealing members 221 connected with the cam 228, an upper end of the valve stem 224 passes through the valve stem box 222, the sealing members 221 are slidably disposed on the valve stem box 222 and extend into the threaded holes 230 or retract from the threaded holes 230, and a positioning member 24 passes through the valve body 23 and is fixed with. In this embodiment, the valve rod 224 drives the cam 228 to rotate forward or backward, and the cam drives the sealing member 221 to move axially, and extend outward or retract inward, so as to control the gap between the valve core 22 and the pipeline, thereby achieving the effect of controlling the water flow in the pipeline.
As shown in fig. 2 and 3, a main control module 14, a driving motor 13, a transmission case 11, and an output shaft 15 are disposed inside the electric actuator 10, an opening detection mechanism 12 is correspondingly disposed outside the transmission case 11, the output shaft 15 is fixed to the valve rod 224 by a thread, after the electric actuator 10 receives a control instruction from the main control module 14, the output shaft 15 drives the valve rod 224 and the cam 228 to rotate clockwise or counterclockwise, the two sealing members 221 synchronously move outward or inward, and a gap between the two screw holes 230 and the sealing members 221 decreases or increases, so as to adjust a flow rate. In this embodiment, the electric actuator 10 realizes automatic control of the flow rate, and the opening degree detection mechanism 12 can further improve the control accuracy on the basis of automatic control.
The main control module 14 can collect the temperature of the heating system, collect the opening data of the valve 20, upload the data, receive a control instruction sent by an upper computer, and send a control instruction to the actuator; the electric actuator 10 can control the opening of the valve 20 by driving the valve rod 224 of the valve 20 to rotate through the output shaft 15, so as to achieve the purpose of flow rate adjustment. The electric actuator 10 can control the valve 20 to realize full opening or full closing, and can also be adjusted at will within the range of 0-90 degrees.
In another preferred embodiment, as shown in fig. 6, the cam 228 is provided with two symmetrical eccentric protrusions, the protrusions are provided with arc-shaped cam grooves 2281, the inner end of the sealing member 221 is provided with an insertion hole 2210, the inner end of the connecting member 227 is arranged in the cam groove 2281, the outer end is inserted into the insertion hole 2210, the outer peripheral surface of the protrusions is a working surface 2282, the inner end of the connecting member 227 slides in the cam groove 2281 along with the rotation of the cam 228, and the working surface 2282 is kept jointed with the sealing member 221. In this embodiment, the cam slot 2281 is arc-shaped, and the different positions are different from the center of the cam 228, and the farther the cam 228 is from the center of the cam 228, the farther the sealing element 221 is from the cam 228, the more the sealing element 221 extends outward, so that when the cam 228 rotates, the control of the sealing degree of the sealing element 221 to the pipeline is realized by using the shape structure of the cam.
Further, as shown in fig. 5, the connecting member 227 is U-shaped. The connecting member 227 is used to connect the sealing member 221, and ensure that the sealing member 221 is kept in contact with the cam 228.
In another preferred embodiment, the inner end of the screw hole 230 is provided with an annular boss, the outer circumferential surface of the sealing member 221 is a tapered surface, and the annular boss and the tapered surface form a liquid flowing space. In this embodiment, the flow space formed by the annular boss and the conical surface is conical, which facilitates the liquid flow, reduces the liquid splash, and reduces the resistance of the sealing member 221 during the movement process.
In another preferred embodiment, a valve rod cover 225 is clamped on the top of the valve rod box 222, the top end of the valve rod cover 225 abuts against the inner wall of the valve body 23, a positioning hole is formed in the bottom of the valve rod box 222, a threaded fixing hole is formed in the bottom of the valve body 23, the positioning piece 24 is in a rod shape and penetrates through the fixing hole to enter the positioning hole, and the sealing cap 25 is screwed into the fixing hole to fix the positioning piece 24. In this embodiment, the sealing cap 25 is used to position the valve stem box 222, ensuring the stability of the internal components of the valve stem box 222. The cap 225 can also be adjusted manually to precision.
Further, an integrally formed valve rod sleeve is arranged at the top of the valve rod cover 225, a protruding valve rod hole is formed in the valve body 23, a valve rod groove is formed in the inner wall of the bottom of the valve body 23, a sealing ring 223 is arranged between the valve rod 224 and the valve rod hole, and the valve rod 224 sequentially penetrates through the valve rod hole, the valve rod cover 225, the cam 228 and is arranged in the valve rod groove from top to bottom. In the embodiment, the torque is transmitted by the valve rod 224 in the radial direction, and the structural characteristics of the valve rod 224 are long rod shape, so that the rigidity of the valve rod hole, the valve rod cover 225, the cam 228 and the valve rod groove can be effectively ensured, and the stability of power transmission is ensured.
Alternatively, further, a guide groove 2251 is provided on the inner side surface of the stem cover 225, and the connecting member 227 is placed in the guide groove 2251. In this embodiment, the moving direction of the connecting member 227 is axial, and the guide groove 2251 defines the moving track of the connecting member 227, so as to improve the stability of the connecting member 227 and the sealing member 221 and prevent the sealing member 221 from shaking under the action of the water impact.
In another preferred embodiment, the main control module 14 is provided with an opening detection module, a temperature measurement module, a communication module, a motor driving module, and a power supply module, and the opening detection module receives a signal from the opening detection mechanism 12. The opening detection structure specifically comprises a Hall element and two magnets on one transmission gear, the Hall element collects two pulses when the gear rotates for one circle, and the opening of the valve is judged according to the collected pulse number.
In another preferred embodiment, the top end of the valve rod 224 is flat and is clamped with the output shaft 15, and the valve rod 224 and the output shaft 15 are fixed through the nut 16. In this embodiment, the valve rod 224 is linked with the output shaft 15 of the electric actuator 10, and is flat and adopts a clamping structure, so that the torque transmission capability is stronger.
The working process of the invention is as follows:
after the main control module 14 of the electric actuator 101 receives the action command, the driving motor 13 starts to rotate in the direction given by the output command, the power is transmitted to the output shaft 15 through the gearbox 1111, and the output shaft 15 drives the valve rod 224 and the cam 228 on the valve 2 to rotate, so that the opening degree of the valve 2 is adjusted;
(1) when the valve rod 224 rotates counterclockwise, the cam 228 rotates counterclockwise, the working surface 2282 of the cam 228 is farther from the rotation center of the cam 228, the working surface 2282 of the cam 228 pushes the left sealing element 221 and the right sealing element 226 to move outward, the opening degree of the valve 2 is gradually reduced, and when the two sealing elements 221 respectively contact and are dead against the bonnet 21 and the valve body 23, the valve rod 224 stops rotating, and the valve 2 is closed;
(2) when the valve rod 224 rotates clockwise, the cam 228 rotates clockwise, the working surface 2282 of the cam 228 becomes closer to the rotation center of the cam 228, the connecting piece 227 pulls the two sealing pieces 221 inwards to move axially under the control of the guide groove 2251 of the valve core upper cover 225, the opening degree of the valve 2 is gradually increased, and when the connecting piece 227 moves to the lowest point of the cam groove 2281, the valve rod 224 stops rotating, and the valve 2 is fully opened.
Because the valve core box adopts the structural design of two sealing elements, the outer ends of the two sealing elements respectively bear the pressure of water flow when the valve is in a closed state, the water flow pressure borne by the end face of the sealing element on one side is consistent with the movement direction of the valve, the water flow pressure borne by the end face of the sealing element on the other side is opposite to the water flow direction, and the two forces are almost equal to each other, so that the two forces are basically offset, the valve rod rotates, the valve is opened, the two sealing elements move inwards, the required force is very small, and the purpose that a smaller actuator is used for driving a larger valve can be realized.
Compared with the prior art, the valve core is fixed by the valve rod box and the positioning piece, the valve rod drives the cam to rotate under the drive of the output shaft, the sealing piece moves axially in the valve body to realize the adjustment of the opening degree of the valve, and the left sealing piece and the right sealing piece are not contacted with the valve body under other states except the closing state of the valve, so the required force is very small, the valve can be driven to be opened and closed by small force, and the left sealing piece and the right sealing piece are not contacted with the valve body basically, and the valve cannot be rusted and opened.
The present invention is not limited to the above-mentioned preferred embodiments, and any structural changes made under the teaching of the present invention shall fall within the scope of the present invention, which is similar or similar to the technical solutions of the present invention.
Claims (9)
1. An electric flow control valve, comprising:
the valve comprises a valve body, one side of the valve body is in threaded connection with a valve cover, screw holes used for being connected with a pipeline are respectively formed in the valve body and the valve cover, a valve core is arranged inside the valve body, the valve core comprises a valve rod box, a valve rod rotationally arranged on the valve rod box, a cam fixed on the valve rod and two sealing elements connected with the cam, the upper end of the valve rod penetrates out of the valve rod box, the sealing elements are slidably arranged on the valve rod box and extend into the screw holes or retract from the screw holes, and a positioning element penetrates through the valve body and is fixed with the box body;
electric actuator, inside host system, driven driving motor, gearbox and output shaft in proper order, the outside correspondence of gearbox is equipped with aperture detection mechanism, the output shaft with valve rod thread tightening, electric actuator receives behind host system's the control command, through the output shaft drives valve rod, cam clockwise or anticlockwise rotation, two the sealing member outwards removes or inwards removes in step, two the screw with clearance between the sealing member diminishes or the grow to the regulation flow.
2. The electric flow control valve according to claim 1, wherein the cam is provided with two symmetrical eccentric protrusions, the protrusions are provided with arc-shaped cam grooves, the inner end of the sealing member is provided with a jack, the inner end of the connecting member is arranged in the cam groove, the outer end of the connecting member is inserted into the jack, the outer peripheral surface of the protrusions is a working surface, the inner end of the connecting member slides in the cam groove along with the rotation of the cam, and the working surface is attached to the sealing member.
3. The electric flow rate control valve according to claim 1, wherein an inner end of the screw hole is provided with an annular projection, an outer peripheral surface of the sealing member is a tapered surface, and the annular projection and the tapered surface form a flow space for the liquid.
4. The electric flow control valve according to claim 1, wherein a valve rod cover is clamped at the top of the valve rod box, the top end of the valve rod cover abuts against the inner wall of the valve body, a positioning hole is formed at the bottom of the valve rod box, a threaded fixing hole is formed at the bottom of the valve body, the positioning piece is in a rod shape, penetrates through the fixing hole and enters the positioning hole, and a sealing cap is screwed into the fixing hole to fix the positioning piece.
5. The electric flow control valve according to claim 4, wherein an integrally formed valve stem sleeve is disposed on the top of the valve stem cover, a protruded valve stem hole is disposed on the valve body, a valve stem groove is disposed on the inner wall of the bottom of the valve body, a sealing ring is disposed between the valve stem and the valve stem sleeve, and the valve stem sequentially passes through the valve stem hole, the valve stem cover and the cam from top to bottom and is disposed in the valve stem groove.
6. The electric flow rate control valve of claim 4, wherein the stem cover has a guide groove on an inner side surface thereof, and the connector is disposed in the guide groove.
7. The electric flow control valve of claim 2, wherein the connector is U-shaped.
8. The electric flow control valve according to claim 1, wherein an opening degree detection module, a temperature measurement module, a communication module, a motor driving module, and a power supply module are arranged in the main control module, and the opening degree detection module receives a signal of the opening degree detection mechanism.
9. The electric flow control valve according to claim 1, wherein the tip of the valve stem is flat, and is engaged with the output shaft, and the valve stem and the output shaft are fixed by a nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010166554.4A CN111237477A (en) | 2020-03-11 | 2020-03-11 | Electric flow regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010166554.4A CN111237477A (en) | 2020-03-11 | 2020-03-11 | Electric flow regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111237477A true CN111237477A (en) | 2020-06-05 |
Family
ID=70873448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010166554.4A Pending CN111237477A (en) | 2020-03-11 | 2020-03-11 | Electric flow regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111237477A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112112981A (en) * | 2020-10-22 | 2020-12-22 | 重庆磐恒阀门有限公司 | High leakproofness gas solenoid valve |
| CN114776875A (en) * | 2022-03-22 | 2022-07-22 | 四川华能氢能科技有限公司 | Hydrogen flow valve of hydrogen filling station and control method thereof |
-
2020
- 2020-03-11 CN CN202010166554.4A patent/CN111237477A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112112981A (en) * | 2020-10-22 | 2020-12-22 | 重庆磐恒阀门有限公司 | High leakproofness gas solenoid valve |
| CN112112981B (en) * | 2020-10-22 | 2022-03-04 | 重庆磐恒阀门有限公司 | High leakproofness gas solenoid valve |
| CN114776875A (en) * | 2022-03-22 | 2022-07-22 | 四川华能氢能科技有限公司 | Hydrogen flow valve of hydrogen filling station and control method thereof |
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