CN115435103A

CN115435103A - Fluid on-off device

Info

Publication number: CN115435103A
Application number: CN202210919586.6A
Authority: CN
Inventors: 魏中海; 陈卓逸
Original assignee: Zhongrun Kangda Intelligent Technology Beijing Co ltd
Current assignee: Zhongrun Kangda Intelligent Technology Beijing Co ltd
Priority date: 2022-08-02
Filing date: 2022-08-02
Publication date: 2022-12-06

Abstract

The invention relates to the technical field of fluid control, and discloses a fluid on-off device which comprises a first shell and a second shell, wherein the first shell and the second shell are used for communicating a fluid conveying pipeline; the first core is provided with a magnet, one side of the first shell, which is close to the magnet, is provided with an electromagnetic assembly, and the electromagnetic assembly is used for being matched with the magnet and driving the first core to rotate relative to the second core so as to enable the circulation hole to be opened or closed. The fluid on-off device provided by the invention has a simple structure and stable work, and can ensure the normal use of a user.

Description

Fluid on-off device

Technical Field

The invention relates to the technical field of fluid control, in particular to a fluid on-off device.

Background

Currently, fluid on-off devices, such as valves, are used to switch and control components in fluid delivery lines. The valve has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting, overflowing and relieving pressure and the like, and is mainly divided into the following parts according to the purposes and the functions: 1. the cutoff valve is mainly used for cutting off or connecting fluid and comprises a gate valve, a stop valve, a diaphragm valve, a plug valve, a ball valve, a butterfly valve and the like; 2. the regulating valve is mainly used for regulating the flow, pressure and the like of a medium and comprises a regulating valve, a throttle valve, a pressure reducing valve and the like; 3. a check valve for preventing a reverse flow of a medium, including various structures of the check valve; 4. the flow dividing valve is used for distributing, separating or mixing media and comprises distributing valves, drain valves and the like with various structures; 5. safety valves for overpressure safety protection, including various types of safety valves.

The diaphragm valve is used for on-off control of high viscosity fluid or fluid containing suspended particle matter, and its opening and closing part is a diaphragm made of soft material to separate the valve body cavity, valve cover cavity and driving part. Common diaphragm valves include rubber-lined diaphragm valves, fluorine-lined diaphragm valves, unlined diaphragm valves, and plastic diaphragm valves. Although the diaphragm valve has small fluid resistance, the pressure resistance and the temperature resistance of the diaphragm valve are related to the diaphragm material, and the diaphragm valve is limited by the diaphragm material, so that the diaphragm valve is limited in use. In addition, the pulse valve is a diaphragm valve which is controlled by a pilot valve such as an electromagnetic valve or a pneumatic valve and can instantly open and close a high-pressure air source to generate pulses, and the pulse valve comprises a right-angle pulse valve and a submerged pulse valve. The pulse valve comprises a spring, a diaphragm, a rubber pad and the like, and parts of the pulse valve are easy to damage and age, so that the service life of the pulse valve is reduced, and the use is influenced.

Therefore, it is an urgent need in the art to provide a fluid on/off device with simple structure and stable operation to ensure the normal use of users.

Disclosure of Invention

The invention provides a fluid on-off device which is simple in structure, stable in work and capable of guaranteeing normal use of a user.

In order to solve the technical problem, the invention provides a fluid on-off device, which comprises a first shell and a second shell, wherein the first shell and the second shell are used for communicating a fluid conveying pipeline, a first core is arranged in the first shell, a second core is arranged in the second shell, the first core is abutted against the adjacent end surface of the second core, and a plurality of circulation holes are formed in the first core and the second core;

the first core is provided with a magnet, one side of the first shell, which is close to the magnet, is provided with an electromagnetic assembly, and the electromagnetic assembly is used for being matched with the magnet and driving the first core to rotate relative to the second core so as to enable the circulation hole to be opened or closed.

Preferably, the flow holes of the first core and the second core are all arranged at equal intervals, and the flow holes on the first core correspond to the flow holes on the second core one to one.

Preferably, the cross section of the circulation holes is in a sector shape, the outer arcs of a plurality of the circulation holes are positioned on the same arc, and the inner arcs of a plurality of the circulation holes are positioned on the same arc.

Preferably, the number of flow holes on the first core is 2n, n is an integer greater than 1, and the angular arc of the flow holes is 360 °/4n.

Preferably, at least one limit stop is arranged in the first shell, at least one lug is connected to one side, away from the second core, of the first core, and the limit stop is used for limiting the rotation amplitude of the lug and the first core.

Preferably, two limit stops are symmetrically arranged in the first shell, a first bump and a second bump are symmetrically connected to one side, away from the second core, of the first core, the first bump and the second bump are arranged between the two limit stops, and the limit stops are used for limiting the rotation amplitude of the first core.

Preferably, at least one first mounting groove is formed in one side, close to the second bump, of the first shell, and the electromagnetic assembly is arranged in the first mounting groove; at least one second mounting groove is formed in the second convex block, the magnet is arranged in the second mounting groove, and the total weight of the second convex block and the magnet is equal to the weight of the first convex block.

Preferably, first mounting groove is equipped with two, the second mounting groove is equipped with threely side by side, two first mounting groove is followed the circumferencial direction of first casing outer wall distributes, two first mounting groove is located threely respectively the interval position department of second mounting groove.

Preferably, a supporting portion is arranged in the second shell, a positioning column is arranged on one side of the supporting portion close to the second core, a positioning hole corresponding to the positioning column is arranged on the second core, the positioning hole is in inserting fit with the positioning column, and one side of the second core, far away from the first core, is abutted against the end face of the supporting portion.

Preferably, the device still includes the lantern ring, sealing washer and fastener, the lantern ring cover is located on the lateral wall of first casing, the sealing washer is located the first casing with the junction of second casing, the lantern ring first casing with all be equipped with a plurality of through-hole on the terminal surface of second casing, the through-hole with the cooperation is pegged graft to the fastener.

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

the invention provides a fluid on-off device, which comprises a first shell and a second shell, wherein the first shell and the second shell are used for communicating a fluid conveying pipeline, a first core body is arranged in the first shell, a second core body is arranged in the second shell, the first core body is abutted against the adjacent end surface of the second core body, and a plurality of circulation holes are formed in the first core body and the second core body; the first core is provided with a magnet, one side of the first shell, which is close to the magnet, is provided with an electromagnetic assembly, and the electromagnetic assembly is used for being matched with the magnet and driving the first core to rotate relative to the second core so as to enable the circulation hole to be opened or closed. The fluid on-off device has simple structure and few parts, and is beneficial to wide application. Meanwhile, the core body is driven to rotate by matching the magnetic force of the magnetic body through electromagnetic induction, so that opening or closing of the circulation hole is realized, the rotation angle of the core body is smaller than that of a valve core of a conventional fluid on-off device, consumed electric energy is reduced, friction caused by rotation is also reduced, electricity is saved in the using process, the service life is prolonged, the working stability is improved, and normal use of a user can be guaranteed.

Drawings

FIG. 1 is a schematic view of an overall structure of a fluid on-off device according to an embodiment of the present invention;

FIG. 2 is an exploded view of a fluid on/off device provided by an embodiment of the present invention;

FIG. 3 is a right side view of a fluid on-off device provided by an embodiment of the present invention;

FIG. 4 is a left side view of a fluid on-off device provided by an embodiment of the present invention;

fig. 5 is a schematic view of an installation structure of a second shell and a second core provided in the embodiment of the present invention;

FIG. 6 is a front view of a fluid on-off device provided by an embodiment of the present invention;

fig. 7 is a C-C sectional view of the fluid on-off device provided by the embodiment of the present invention.

Wherein the reference numbers are as follows: 1. a first housing; 2. a second housing; 3. a first core; 4. a second core; 5. a flow-through hole; 6. an electromagnetic assembly; 7. a first bump; 8. a second bump; 9. a second mounting groove; 10. a magnet; 11. a limit stop block; 12. a collar; 13. a first mounting groove; 14. a through hole; 15. a positioning column; 16. and (7) positioning the holes.

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 obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.

Referring to fig. 1 and 2, a fluid on-off device provided by an embodiment of the present invention includes a first housing 1 and a second housing 2, where the first housing 1 and the second housing 2 are used to communicate a fluid conveying pipeline, a first core 3 is disposed in the first housing 1, a second core 4 is disposed in the second housing 2, adjacent end surfaces of the first core 3 and the second core 4 are abutted, and a plurality of circulation holes 5 are disposed on both the first core 3 and the second core 4. The first core body 3 is provided with a magnet 10, one side of the first shell body 1 close to the magnet 10 is provided with an electromagnetic assembly 6, and the electromagnetic assembly 6 is used for being matched with the magnet 10 and driving the first core body 3 to rotate relative to the second core body 4 so as to enable the circulation hole 5 to be opened or closed.

The fluid on-off device has simple structure and few parts, and is beneficial to wide application. Meanwhile, the core body is driven to rotate by the magnetic force of the electromagnetic induction matched magnet 10, so that the opening or closing of the circulation hole 5 is realized, the rotation angle of the core body is smaller than that of a valve core of a conventional fluid on-off device, the consumed electric energy is reduced, the friction caused by rotation is also reduced, the electricity is saved in the using process, the service life is prolonged, the working stability is improved, and the normal use of a user can be ensured.

Specifically, the end of the first shell 1 close to the end of the second shell 2 forms a cavity for accommodating the first core 3 and the second core 4, and the end of the first shell 1 away from the end of the second shell 2 is provided with a communicating pipe for butt joint with a fluid delivery pipe. For the convenience of installation, the diameters of the end surfaces of the first housing 1 and the second housing 2 are the same. The first core 3 and the second core 4 are of a flat cylindrical structure, the end faces of the first core 3 and the second core 4 are in butt joint, and the two opposite end faces of the first core 3 and the second core 4 are arranged in a clinging mode.

In the present embodiment, the flow holes 5 of the first core 3 and the second core 4 are all arranged at equal intervals, and the flow holes 5 of the first core 3 correspond to the flow holes 5 of the second core 4 one by one. The angle of rotation of the first core 3 when it is opened or closed is related to the number, size, etc. of the flow holes 5. As shown in fig. 3, when 16 flow holes 5 are provided, the angle of each rotation of the first core 3 is 11.25 degrees.

Referring to fig. 3 and 4, in one embodiment, the cross section of the circulation holes 5 is a sector, the outer arcs of the circulation holes 5 on the same core are on the same arc, and the inner arcs of the circulation holes 5 are on the same arc. Specifically, the distance between the outer circular arc of the flow hole 5 on the first core 3 and the center point of the first core 3 is equal to the distance between the outer circular arc of the flow hole 5 on the second core 4 and the center point of the second core 4, and the distance between the inner circular arc of the flow hole 5 on the first core 3 and the center point of the first core 3 is equal to the distance between the inner circular arc of the flow hole 5 on the second core 4 and the center point of the second core 4.

Wherein, the sectional fan shape of the flow hole 5 is set to a long and narrow fan shape, thereby reducing the pressure loss of the fluid. Meanwhile, taking water flow as an example, when sundries such as aquatic weeds are mixed in water, the long and narrow fan-shaped side surface of the circulation hole 5 can play a role in cutting aquatic weeds when the first core 3 rotates, so that the whole device is prevented from being blocked.

In this embodiment, the number of flow openings 5 in the first core 3 is 2n, n being an integer greater than 1, and the angular arc of the flow openings 5 is 360 °/4n. Exemplarily, the number of flow openings 5 may be 4, 6, 8, 10, 12, etc. When the number of the fan-shaped circulation holes 5 is 4, the angular arc of the circulation holes 5 is 45 degrees; when the number of the fan-shaped flow holes 5 is 8, the angular arc of the fan-shaped flow holes 5 is 22.5 degrees.

Referring to fig. 5, further, a supporting portion is arranged in the second housing 2, the supporting portion is annular and is fixedly connected to the inner wall of the second housing 2, a positioning column 15 is arranged on one side of the supporting portion close to the second core 4, a positioning hole 16 corresponding to the positioning column 15 is arranged on the second core 4, the positioning hole 16 is in insertion fit with the positioning column 15, and one side of the second core 4 away from the first core 3 abuts against an end surface of the supporting portion. In one embodiment, two positioning columns 15 and two positioning holes 16 are symmetrically arranged, so as to realize the positioning and fixing of the second core 4 and prevent the second core 4 from rotating or moving.

In this embodiment, at least one limit stop 11 is disposed in the first housing 1, at least one protrusion is connected to a side of the first core 3 away from the second core 4, and the limit stop 11 is used for limiting the rotation amplitude of the protrusion and the first core 3. After the device is assembled, the side surface of the first core 3, which is far away from the second core 4, is tightly attached to the end surface of the limit stop 11, and the side surface of the first core 3, which is close to the second core 4, is tightly attached to the side surface of the second core 4.

Referring to fig. 6 and 7, in one embodiment, two limit stoppers 11 are symmetrically disposed in the first housing 1 along the axial direction of the first housing 1, and a connecting line of central points of inner and outer arcs of the two limit stoppers 11 intersects with a central axis of a center of a cross section of the first core 3. The first core 3 is connected with a first bump 7 and a second bump 8 symmetrically on the side far away from the second core 4, that is, the central point connecting line of the inner and outer arcs of the first bump 7 and the second bump 8 passes through the center of the first core 3. The first and

second bumps

7 and 8 and the first core 3 may be integrally formed, or may be welded, bonded, or the like, as long as they are fixedly connected. The first bump 7 and the second bump 8 are arranged between the two limit stoppers 11, and the limit stoppers 11 can limit the rotation range of the first core 3. At the initial position, the side surface of one of the stoppers may be closely attached to the side surface of the first protrusion 7, and the range of the rotation range of the first core 3 is the arc distance between the two stoppers 11.

In other embodiments, the number of the limit stoppers 11 may also be 1, 3, 4, etc. according to the requirement of the rotation amplitude, and the number of the limit stoppers 11 is not specifically limited in the present invention. For example, 4 rotation zones are separated by 4 limit stops 11.

In this embodiment, at least one first mounting groove 13 is formed on one side of the first casing 1 close to the second protrusion 8, and the electromagnetic assembly 6 is disposed in the first mounting groove 13. Electromagnetic assembly 6 can adopt the coil, and the coil is connected with external power supply unit, and first mounting groove 13 adopts to link up the setting to this reduces to shelter from, avoids influencing the electromagnetic force of coil. Of course, the electromagnetic assembly 6 may also comprise soft iron, which is provided inside the coil to enhance the magnetization effect when the coil is energized. At least one second mounting groove 9 is formed in the second bump 8, and the magnet 10 is arranged in the second mounting groove 9. When currents in different directions are introduced into the coil, the magnetic poles of the coil can be changed, so that mutual repulsion or mutual attraction force is generated between the coil and the magnet 10 to drive the first core 3 to rotate. Preferably, the total weight of the second projection 8 and the magnet 10 is equal to the weight of the first projection 7, thereby ensuring balance when the first core 3 rotates.

Referring to fig. 2, in one embodiment, there are two first mounting grooves 13, three second mounting grooves 9 are arranged side by side, two first mounting grooves 13 are distributed along the circumferential direction of the outer wall of the first housing 1, and two first mounting grooves 13 are respectively arranged at the interval positions of the three second mounting grooves 9. Three second mounting groove 9 intervals set up, all set up a magnet 10 in each second mounting groove 9, and two intervals department are located respectively to two first mounting grooves 13, are favorable to two coils and three magnet 10 to mutually support. Wherein the magnetic poles of any two adjacent magnets 10 are opposite at the same end.

In this embodiment, the device still includes lantern ring 12, sealing washer and fastener, and 12 cover of lantern ring are located on the lateral wall of first casing 1, and the junction of first casing 1 and second casing 2 is located to the sealing washer, all is equipped with a plurality of through-hole 14 on the terminal surface of lantern ring 12, first casing 1 and second casing 2, and through-hole 14 is pegged graft with the fastener and is cooperated. After the collar 12 is installed, the coil can be covered.

Preferably, through holes 14 with the same size are arranged on the edge of the first shell 1 and the edge of the second shell 2 at equal intervals, and the number of the through holes 14 on the first shell 1 and the second shell 2 is equal to the number of the through holes 14 on the end surface of the lantern ring 12. During the equipment, first casing 1 hugs closely the setting through sealing washer and second casing 2, and a plurality of through-holes 14 homogeneous phase correspond the setting, and the fastener passes through-hole 14 in proper order, and then assembles whole device. The fastening member may be a bolt, a screw, a rivet, a welding nail, or the like, which is not limited in the present invention. After the device is assembled, sealing rings are arranged at the positions of the outer edges of the first shell 1 and the second shell 2.

In the present embodiment, the fluid on-off device is in an off state in the initial state. Depending on the magnetic effect of the current, i.e. if a metal wire is passed through the current, a circular magnetic field will be generated in the space around the wire. The greater the current flowing in the wire, the stronger the magnetic field generated, which is rounded around the wire. First, a power supply device supplies a forward current to a pair of coils (the current direction of the coils is defined as clockwise), the coils which obtain the forward current generate magnetic fields, and the magnetic pole direction of the magnetic fields is judged by using a right-hand rule (the right-hand rule judges that when the four-finger direction is the current direction of the coils, the magnetic pole pointed by the thumb is the north (N) pole of the induction magnetic pole of the coils). Because at least one of the magnetic poles of the magnet 10 opposite to the coil is S pole, and at least one magnetic pole of the magnet 10 is N pole, the S pole of the coil induction magnetic field is repelled with the S pole of one magnet 10 and attracted with the N pole of the other magnet 10 according to the attraction of the repelled opposite poles of the same pole, the repelling and attracting force drives the first core 3 to rotate, so that the first core 3 and the circulation holes 5 on the second core 4 are communicated with each other, at the moment, fluid can pass through the on-off device, namely, the fluid on-off device is in an open working state. When the switching-off is needed, the power supply device supplies reverse current to the coil (the current direction in the coil is defined to be anticlockwise at the moment), the repulsive and attractive force between the induction magnetic pole of the coil and the three magnets exists inevitably at the moment, the repulsive and attractive force drives the first core 3 to rotate continuously, then the circulation holes 5 in the first core 3 and the second core 4 are completely staggered, at the moment, fluid cannot pass through the switching-off device, and the fluid switching-off device is in a switching-off state, namely an initial state.

In summary, the fluid on-off device provided by the embodiment has the following advantages and beneficial technical effects:

(1) Compared with the existing electromagnetic valve, the on-off device has the advantages of simple structure, few parts and contribution to wide application.

(2) The power is saved, and the response speed is high. The fluid on-off device drives the core body to rotate by the magnetic force of the magnetic body matched with the magnetic induction of the coil, so that the on-off is realized, the rotation angle of the core body is smaller than that of a valve core of a conventional fluid on-off device, the consumed electric energy is reduced, the friction caused by rotation is also reduced, the power is saved in the using process, and the service life is prolonged, and the working stability is improved; meanwhile, the alternation of on-off is realized by a smaller rotating angle, so the response speed is higher.

(3) Through the limit stop who sets up the symmetry, the mutual process of attracting that repels of cooperation coil induction magnetic pole and magnet magnetic pole has guaranteed the accuracy of angle when the core is rotatory, makes fluid break-make process control more accurate.

(4) The flow hole adopts a structure with a narrow and slender fan-shaped cross section, so that the mutual complete shielding of the device when two cores are staggered in a rotating mode during disconnection is facilitated, the maximization of the flow area of the flow hole of the device is ensured, the flow rate and efficiency of fluid are ensured, and the reduction of the pressure loss of the fluid is facilitated.

(5) Is not easy to be interfered by external magnetism. According to the invention, through a skillful arrangement mode of the magnets and the coils, the capability of resisting external magnetic interference is improved, so that the working performance of the on-off device is more stable.

The above-mentioned embodiments are provided to further explain the objects, technical solutions and advantages of the present invention in detail, and it should be understood that the above-mentioned embodiments are only examples of the present invention and are not intended to limit the scope of the present invention. It should be understood that any modifications, equivalents, improvements and the like, which come within the spirit and principle of the invention, may occur to those skilled in the art and are intended to be included within the scope of the invention.

Claims

1. A fluid on-off device is characterized by comprising a first shell and a second shell, wherein the first shell and the second shell are used for communicating a fluid conveying pipeline, a first core is arranged in the first shell, a second core is arranged in the second shell, the first core is abutted against the adjacent end surface of the second core, and a plurality of circulation holes are formed in the first core and the second core;

2. The fluid on-off device as claimed in claim 1, wherein the flow holes of the first core and the second core are all equally spaced, and the flow holes of the first core are in one-to-one correspondence with the flow holes of the second core.

3. The fluid on-off device according to claim 2, wherein the cross-section of said flow holes is a sector, and outer arcs of a plurality of said flow holes are located on the same arc, and inner arcs of a plurality of said flow holes are located on the same arc.

4. The fluid on-off device as claimed in claim 3, wherein the number of flow holes on the first core is 2n, n is an integer greater than 1, and the angular arc of the flow holes is 360 °/4n.

5. The fluid on-off device as claimed in claim 1, wherein at least one limit stop is provided in the first housing, at least one protrusion is connected to a side of the first core away from the second core, and the limit stop is configured to limit the rotation amplitude of the protrusion and the first core.

6. The fluid on-off device according to claim 5, wherein two limit stoppers are symmetrically disposed in the first housing, a first protrusion and a second protrusion are symmetrically connected to a side of the first core away from the second core, the first protrusion and the second protrusion are disposed between the two limit stoppers, and the limit stoppers are used for limiting a rotation amplitude of the first core.

7. The fluid on-off device of claim 6, wherein at least one first mounting slot is formed on the first housing on a side thereof adjacent to the second protrusion, and the solenoid assembly is disposed in the first mounting slot; at least one second mounting groove is formed in the second convex block, the magnet is arranged in the second mounting groove, and the total weight of the second convex block and the magnet is equal to the weight of the first convex block.

8. The fluid on-off device according to claim 7, wherein there are two first mounting grooves, three second mounting grooves are provided side by side, two first mounting grooves are distributed along a circumferential direction of the outer wall of the first casing, and two first mounting grooves are provided at spaced positions of the three second mounting grooves, respectively.

9. The fluid on-off device according to claim 1, wherein a support portion is provided in the second housing, a positioning post is provided on a side of the support portion close to the second core, a positioning hole corresponding to the positioning post is provided on the second core, the positioning hole is inserted into and fitted with the positioning post, and a side of the second core away from the first core abuts against an end face of the support portion.

10. The fluid on-off device according to any one of claims 1 to 9, further comprising a collar, a sealing ring, and a fastening member, wherein the collar is fitted over an outer sidewall of the first housing, the sealing ring is disposed at a joint of the first housing and the second housing, and a plurality of through holes are disposed on end surfaces of the collar, the first housing, and the second housing, and the through holes are in insertion fit with the fastening member.