Open-close valve

Abstract

The present invention comprises a valve body in which a diaphragm provided in an opening / closing port formed on a fluid path communicating from an inlet to an outlet is raised or lowered by a pressure difference between an upper space and a lower space, thereby selectively opening or closing the opening / closing port; an opening / closing control unit that selectively raises or lowers a plunger that opens and closes a pilot hole for draining fluid contained in the upper space of the diaphragm to vary the pressure in the upper space of the diaphragm; a driving unit mechanically connected to the opening / closing control unit and providing rotational force to the opening / closing control unit by generating rotational force with externally applied power to vary the pressure in the upper space of the diaphragm; a solar power communication control unit that is charged by solar power and selectively supplies power to the driving unit by a control signal applied via wireless communication; and a pressure switch unit provided in the valve body and electrically connecting the solar power communication control unit and the driving unit by fluid introduced through the inlet, wherein a pilot hole for adjusting the pressure in the upper space of the diaphragm is formed on the outlet side of the valve body. Accordingly, the shock caused by the upper and lower pressure difference of the diaphragm opening and closing the opening is softened, thereby providing an opening and closing valve that can protect the diaphragm subjected to fluid discharge pressure.

Description

Technology Field

[0001] The present invention relates to an opening and closing valve, which is driven by power generated by solar energy and has a pilot hole that regulates pressure in the space above the diaphragm, which is opened and closed by a plunger that moves up and down through interaction with a permanent magnet. Background Technology

[0003] Generally, to open or close a valve, the valve stem comes into contact with the valve opening to block the flow path, or the valve stem separates from the valve opening to open the flow path.

[0004] In order for the valve stem to come into contact with or be separated from the valve opening / closing port in this manner, the valve stem must be provided to be movable relative to the valve body, and additionally, a driving device for moving the valve stem is required.

[0005] Methods for driving the valve stem include using a manual handle rotated by an operator's hand, or using an automatic valve in which the valve stem is driven by electricity, hydraulics, pneumatics, etc.

[0006] Valves using manual handles cannot be applied in environments requiring speed because their opening and closing speeds are very slow.

[0007] Automatic valves driven by electricity, hydraulics, or pneumatics typically require complex devices such as motors, and there is also the problem that electrical wires, hydraulic piping, and pneumatic piping must be connected to each individual valve.

[0008] In the case of solenoid valves, which are primarily used as small valves, the flow path is opened and closed by a combination of an electromagnet and a spring; however, in order for the valve stem to actuate in the reverse direction of the spring's elastic force, electricity must be continuously supplied to the coil surrounding the electromagnet, and there is a problem in that heat is generated due to such excessive electricity supply.

[0009] Furthermore, conventional wired solenoid valves used in industrial sites or agricultural fields cannot be utilized in open fields due to issues such as increased wire resistance resulting from long-distance installation and the risk of wire breakage during cultivation. Even in the case of wirelessly remotely controlled latching-type DC solenoid valves, communication control is limited to short distances of tens of meters, and the instability of the latching function of the plunger that opens and closes the valve causes the diaphragm, which generates shock and vibration, to be easily damaged.

[0010] For prior art, refer to Korean Patent Registration No. 10-1245240 (March 13, 2013). The problem to be solved

[0012] The present invention aims to provide an opening and closing valve capable of protecting a diaphragm subjected to fluid discharge pressure by forming a pilot hole on the discharge side of the valve body to regulate the upper space pressure of the diaphragm, thereby softening the impact caused by the upper and lower pressure difference of the diaphragm opening and closing the opening. means of solving the problem

[0014] An opening / closing valve according to the present invention comprises: a valve body in which a diaphragm provided in an opening / closing port formed on a flow path communicating from an inlet to an outlet is raised or lowered due to a pressure difference between an upper space and a lower space, thereby selectively opening or closing the opening / closing port; and an opening / closing control unit in which a pilot hole for draining fluid contained in the upper space of the diaphragm is formed adjacent to the outlet of the valve body, and a plunger for opening and closing the pilot hole is selectively raised or lowered to vary the pressure in the upper space of the diaphragm. and a driving unit that is mechanically connected to the opening / closing control unit and generates rotational force with externally applied power to provide rotational force to the opening / closing control unit so that the pressure in the upper space of the diaphragm is varied; wherein the opening / closing control unit includes a switching shaft that has a length in a vertical line in the vertical direction and optionally moves up and down in a vertical line in the vertical direction, a magnetic wheel equipped with a first permanent magnet having an attractive force with the plunger and a second permanent magnet having a repulsive force with the plunger and a gear wheel that is partially connected to the magnetic wheel and has gear teeth formed on its outer surface and is mechanically connected to the driving unit, and the lower part of the switching shaft is coupled through the connection part of the magnetic wheel and the gear wheel so that the magnetic wheel and the gear wheel rotate with respect to the switching shaft.

[0015] At this time, the invention further comprises a sealing cap formed with a plunger receiving hole that accommodates the plunger for selectively opening and closing the pilot hole, which is coupled to the upper side of the valve body according to the present invention; a cover coupled to the upper side of the sealing cap; a stem provided on the diaphragm to provide a load to the diaphragm; and a pressure spring disposed between the cover and the stem to press the diaphragm toward the opening / closing side.

[0016] At this time, a central hole is formed in the center of the stem according to the present invention to allow fluid introduced through the inlet to flow into the upper space of the diaphragm.

[0017] In addition, the plunger receiving hole according to the present invention is in communication with the upper space of the diaphragm, so that when the plunger is raised and the pilot hole is opened, the fluid contained in the upper space of the diaphragm is drained by passing through the plunger receiving hole and the pilot hole.

[0018] In addition, the opening and closing valve according to the present invention further includes a solar power communication control unit that is charged by solar power and selectively supplies power to the driving unit by a control signal applied via wireless communication; and a pressure switch unit provided in the valve body and electrically connecting the solar power communication control unit and the driving unit by a fluid introduced through the inlet.

[0019] Here, it is preferable that the first permanent magnet according to the present invention has a magnetic polarity different from the magnetic polarity of the upper surface of the plunger, and the second permanent magnet has a magnetic polarity the same as the magnetic polarity of the upper surface of the plunger.

[0020] In addition, the plunger according to the present invention is raised or lowered by the first permanent magnet or the second permanent magnet disposed on the upper side.

[0021] And the plunger according to the present invention comprises a body made of a cylindrical magnet, a ring hook made of a magnetic material coupled to the lower surface of the body, and a rubber tip coupled to the lower end of the ring hook and in contact with the upper end of the pilot hole to seal the pilot hole.

[0022] In addition, the pilot hole according to the present invention is provided with a magnetic channel member at the hole entrance facing the lower side of the plunger, so that the rubber tip of the plunger is pressed against the entrance of the channel member by the magnetic force of the body of the plunger, thereby tightly closing the pilot hole.

[0023] In addition, the opening / closing control unit according to the present invention further includes an operating cap coupled to the upper side of the switching shaft and a compression spring provided inside the operating cap, which elastically maintains the switching shaft in its original position (raised position).

[0024] At this time, on the outer surface of the switching shaft according to the present invention, a connecting piece that is fitted into a connecting groove formed in the magnetic wheel when the switching shaft is lowered and transmits rotational force to the magnetic wheel, and a stopper that is seated on a stopping piece formed in the gear wheel when the switching shaft is lowered and limits the lowering height of the switching shaft are formed protrudingly.

[0025] The pressure switch unit according to the present invention comprises: a switch module electrically connected to the solar communication control unit and the driving unit, and configured to supply power from the solar communication control unit to the driving unit by switching the a-contact of the push switch; a guide body formed as a cylinder with an open bottom surface, provided in a pressure channel formed on the inlet side of the valve body; a balloon cap provided inside the guide body, which expands in volume by filling with fluid flowing in through the pressure channel; a push member provided above the balloon cap inside the guide body, which rises due to the volume expansion of the balloon cap and pressurizes the push switch of the switch module; and a coil spring provided above the push member inside the guide body, which returns the push member to its original position by elasticity when there is no fluid inflow into the guide body.

[0026] At this time, the push member according to the present invention forms a push bar protruding upward, penetrating the upper surface of the guide body, so that the upper end selectively contacts the push switch. Effects of the invention

[0028] The effects produced by the opening and closing valve according to the present invention are as follows.

[0029] By forming a pilot hole on the discharge side of the valve body to regulate the upper space pressure of the diaphragm, the impact caused by the upper and lower pressure difference of the diaphragm opening and closing the opening is softened, thereby protecting the diaphragm that receives the fluid discharge pressure.

[0030] In open fields where it is difficult to supply power to the valve, solar energy is generated to charge the power supply, and the opening and closing of the valve can be controlled wirelessly using the charged power, making on-site installation easy without the need for separate electrical wiring.

[0031] Since the opening and closing of the valve is achieved by changing the position of a permanent magnet, an energy-saving shut-off valve with low power consumption can be provided.

[0032] It can be reliably opened or closed from a long or short distance using wireless communication means, and provides the convenience of viewing and checking the operating status of the opening and closing valve in real time. Brief explanation of the drawing

[0034] FIG. 1 is a cross-sectional view showing an opening and closing valve according to an embodiment of the present invention. FIG. 2 is an exploded perspective view showing an opening and closing valve according to an embodiment of the present invention. FIG. 3 is a cross-sectional view showing the open state of the shut-off valve according to an embodiment of the present invention. FIG. 4 is a cross-sectional view showing the plunger cross-section of an opening / closing valve according to an embodiment of the present invention. Specific details for implementing the invention

[0035] Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the attached drawings. Prior to this, terms and words used in this specification and claims should not be interpreted as being limited to their ordinary or dictionary meanings, and based on the principle that the inventor can appropriately define the concepts of the terms to best describe his invention, they should be interpreted in a meaning and concept consistent with the technical spirit of the present invention.

[0036] Therefore, the embodiments described in this specification and the configurations illustrated in the drawings are merely the most preferred embodiments of the present invention and do not represent all of the technical ideas of the present invention; thus, it should be understood that there may be equivalent variations that can replace them at the time of filing this application.

[0037] The present invention relates to an opening and closing valve driven by power produced by solar energy, wherein a pilot hole that regulates pressure in the upper space of a diaphragm is opened and closed by a plunger that moves up and down through interaction with a permanent magnet, and is described as follows with reference to the drawings.

[0038] An opening / closing valve according to an embodiment of the present invention comprises a valve body (100), an opening / closing control unit (200), a driving unit (300), a solar power communication control unit (400), and a pressure switch unit (500). First, the valve body (100) is a tubular shape with a hollow interior, and an inlet (101) through which a fluid (water) is introduced is formed on one side, and an outlet (102) through which the fluid (water) introduced through the inlet (101) is discharged is formed on the other side opposite to the one side.

[0039] And, in the above valve body (100), an opening / closing port (103) is formed between the flow paths where the inlet port (101) and the outlet port (102) are connected, and the opening / closing of the flow path is achieved by opening or closing the opening / closing port (103).

[0040] At this time, the inlet (101) and the outlet (102) are positioned on a horizontal line, and the opening / closing port (103) is positioned on a vertical line perpendicular to the flow path connecting the inlet (101) and the outlet (102).

[0041] A guide partition (104) is formed at the point where the opening / closing port (103) is located in the above-mentioned Euro, so that the fluid (water) introduced through the inlet port (101) is guided to flow toward the opening / closing port (103).

[0042] Here, the opening / closing port (103) is provided with a diaphragm (110) equipped with a stem (120), and the opening / closing port (103) is opened and closed by the raising and lowering of the stem (120) and the diaphragm (110), thereby opening and closing the flow path connecting the inlet port (101) to the outlet port (102).

[0043] The lifting of the stem (120) and the diaphragm (110) is achieved by the pressure difference (water pressure) between the upper space (111) and the lower space (112) relative to the diaphragm (110). If the pressure (water pressure) in the lower space (112) is lower than that in the upper space (111) relative to the diaphragm (110), the stem (120) and the diaphragm (110) do not rise and maintain their state, thereby maintaining the closed state of the opening / closing port (103).

[0044] And if the pressure (water pressure) in the lower space (112) is higher than that in the upper space (111) relative to the diaphragm (110), the stem (120) and the diaphragm (110) rise, so that the opening (103) is opened, and the fluid (water) introduced through the inlet (101) passes through the opening and is discharged to the outlet (102).

[0045] Here, a central hole (121) is formed in the center of the stem (120) to introduce fluid (water) into the upper space (111) of the diaphragm (110), thereby causing pressure (water pressure) to be generated in the upper space (111) of the diaphragm (110).

[0046] Additionally, a pressure spring (130) is provided on the upper side of the stem (120), and the pressure spring (130) pushes the stem (120) downward with the repulsive force of the pressure spring (130) to add pressure to the upper space (111), thereby closing the opening / closing port (103) or maintaining the closed state.

[0047] At this time, a sealing cap (152) is provided on the upper side of the valve body (100). The sealing cap (152) is fastened to the upper side of the valve body (100) to form an upper space (111) on the upper side of the diaphragm (110) and seals the area around the opening / closing port (103) of the valve body (100) to maintain fluid airtightness.

[0048] And when the sealing cap (152) is fastened to the upper side of the valve body (100), the upper end of the pressure spring (130) placed in the upper space (111) is supported, and the pressure spring (130) exerts an elastic repulsive force in the downward direction.

[0049] Additionally, a plunger receiving hole (151) is formed on one side of the sealing cap (152) to accommodate a plunger (140), and the plunger (140) accommodated in the plunger receiving hole (151) moves up and down along the upper and lower lengths of the plunger receiving hole (151).

[0050] And a pilot hole (105) is formed on the upper side of the discharge port (102) of the valve body (100), and the pilot hole (105) allows the fluid (water) contained in the upper space (111) of the diaphragm (110) to be selectively drained to the discharge port (102).

[0051] Accordingly, when the fluid (water) contained in the upper space (111) of the diaphragm (110) is drained to the outlet (102), the pressure in the upper space (111) of the diaphragm (110) is lowered relatively, and as the stem (120) and the diaphragm (110) rise, the opening (103) is opened so that the fluid (water) introduced through the inlet (101) passes through the opening (103) and is discharged to the outlet (102).

[0052] Here, the opening and closing of the pilot hole (105) is achieved by the raising and lowering of the plunger (140).

[0053] The plunger (140) is provided in the sealing cap (152) which is coupled to the upper side of the valve body (100). The sealing cap (152) is coupled to the upper side of the valve body (100) to seal the upper side of the valve body (100), thereby forming an upper space (111) on the upper side of the diaphragm (110), and supporting a pressure spring (130) that adds pressure to the upper space (111).

[0054] Looking more closely at the plunger (140), the plunger (140) is cylindrical and is equipped with a body (141) of a permanent magnet (neodymium) having a relatively strong magnetic force, and the surface of the body (141) is waterproofed by being wrapped with a waterproof material (142) so as not to be corroded by water, etc.

[0055] At this time, the upper surface of the body (141) forms a magnetic polarity of either the N pole or the S pole.

[0056] And a ring hook (143) is formed on the lower surface of the body (141), and a cylindrical rubber tip (144) having elasticity is attached to the ring hook (143), so that the rubber tip (144) contacts the upper end of the pilot hole (105), thereby sealing the pilot hole (105).

[0057] Here, a cylindrical plunger receiving hole (151) is formed at the location of the pilot hole (105) in the sealing cap (152) to accommodate the plunger (140), thereby guiding the plunger (140) to move up and down along the vertical length.

[0058] Additionally, the lower side of the plunger receiving hole (151) is in communication with the upper space (111) of the diaphragm (110). When the plunger (140) rises, the fluid (water) contained in the upper space (111) of the diaphragm (110) flows through the plunger receiving hole (151) to the pilot hole (105).

[0059] Accordingly, the plunger (140) is received in the plunger receiving hole (151) formed at the location of the pilot hole (105) in the sealing cap (152) and contacts the upper end of the pilot hole (105) by its load, thereby sealing the pilot hole (105), and the plunger (140) is selectively raised and lowered by the magnetic polarity provided by the opening / closing control unit (200), thereby opening and closing the pilot hole (105).

[0060] Here, a channel member (107) made of a magnetic material is provided at the hole entrance of the pilot hole (105) that contacts the lower side of the plunger (140), and a ring hook (143) coupled to the lower surface of the body (141) of the plunger (140), which is made of a magnet, is also made of a magnetic material.

[0061] Accordingly, when the magnetism of the body (141) made of magnets is conducted to the ring hook (143) and magnetic force is generated in the ring hook (143) by the conducted magnetism, the plunger (140) descends to seal the pilot hole (105), and the plunger (140) is pressed against the entrance of the channel member (107) by the magnetic force of the body (141), so that the pilot hole (105) is closed tightly without gaps and the tightly closed state of the pilot hole (105) is maintained.

[0062] And a cover (150) is provided on the upper side of the sealing cap (152), and the cover (150) is provided with an opening / closing control unit (200), a driving unit (300), and a solar power communication control unit (400).

[0063] The above opening / closing control unit (200) controls the opening / closing of the pilot hole (105) by selectively raising and lowering the plunger (140). The above opening / closing control unit (200) is equipped with a switching shaft (210), a magnetic wheel (220), and a gear wheel (230).

[0064] The above-mentioned switching shaft (210) is a shaft having a length along a vertical line in the vertical direction, and a magnetic wheel (220) is disposed on one side of the circumferential direction of the switching shaft (210), and a gear wheel (230) is disposed on the opposite side.

[0065] At this time, the magnetic wheel (220) and the gear wheel (230) form a fan shape, and their corner portions are integrally connected so that they can rotate left and right with respect to the switching axis (210).

[0066] And a hole is formed in the connection part between the magnetic wheel (220) and the gear wheel (230) through which the lower part of the switching shaft (210) passes, and the lower part of the switching shaft (210) passes through the hole and is coupled.

[0067] Accordingly, the switching shaft (210) can rotate independently without being constrained by the magnetic wheel (220) and the gear wheel (230), and the switching shaft (210) can also move up and down along the longitudinal direction.

[0068] The lower part of the switching shaft (210) is provided inside the cover (150) so that it can be selectively rotated by manual operation by the user, and the upper part of the switching shaft (210) is exposed to the outside of the cover (150).

[0069] An operating cap (240) is attached to the upper end of the switching shaft (210) exposed to the outside, and the operating cap (240) allows a user to manually control the lifting and rotation of the switching shaft (210) by grasping it with their fingers.

[0070] At this time, a compression spring (241) is provided inside the operating cap (240), and the lower end of the compression spring (241) is supported by the cover (150) so that the switching shaft (210) is elastically positioned in its original position (raised state).

[0071] A linkage piece (211) and a stopper (212) are formed protrudingly on the circumferential surface of the switching shaft (210). When the switching shaft (210) descends, the linkage piece (211) is seated in a linkage groove (223) formed in the magnetic wheel (220), thereby causing the magnetic wheel (220) and the gear wheel (230) to rotate in conjunction with the rotation of the switching shaft (210).

[0072] And when the switching shaft (210) is lowered, the stopper (212) is seated on the stop piece (231) formed on the gear wheel (230), thereby limiting the lowering height of the switching shaft (210).

[0073] Accordingly, when manual operation is required for the above-mentioned opening / closing control unit (200), the user holds the above-mentioned operating cap (240) with their finger and presses it from top to bottom to cause the above-mentioned switching shaft (210) to descend along the longitudinal direction.

[0074] At this time, the interlocking piece (211) of the lowered switching shaft (210) is seated in the interlocking groove (223) formed in the magnetic wheel (220), and the stopper (212) is seated in the stopping piece (231) formed in the gear wheel (230) to complete the lowering of the switching shaft (210).

[0075] When the lowering of the switching shaft (210) is completed, the operating cap (240) is rotated to the left or right while the switching shaft (210) is in the lowered state. When the switching shaft (210) is rotated to the left or right, the magnetic wheel (220) and the gear wheel (230) are linked by the linkage piece (211) of the switching shaft (210) to rotate to the left or right, thereby enabling manual operation.

[0076] Automatic control is achieved by rotational force transmitted from the drive unit (300), wherein the magnetic wheel (220) is positioned above the plunger receiving hole (151) in which the plunger (140) is received, and the gear wheel (230) is connected to the drive unit (300) and the gear (320), so that when the gear (320) of the drive unit (300) rotates, rotational force is transmitted to the gear wheel (230) engaged with the gear, causing the magnetic wheel (220) and the gear wheel (230) to rotate from left to right or from right to left within the corresponding angle range with respect to the switching axis (210).

[0077] The magnetic wheel (220) is provided with a first permanent magnet (221) having a magnetic polarity different from the upper surface magnetic polarity of the plunger (140), and a second permanent magnet (222) having a magnetic polarity the same as the upper surface magnetic polarity of the plunger (140).

[0078] Here, the first permanent magnet (221) raises the plunger (140) received in the plunger receiving hole (151) by an attractive force corresponding to the magnetic polarity of the upper surface of the plunger (140), and the second permanent magnet (222) lowers the plunger (140) received in the plunger receiving hole (151) by a repulsive force corresponding to the magnetic polarity of the upper surface of the plunger (140).

[0079] In other words, the opening and closing of the pilot hole (105) is achieved by a permanent magnet located above the plunger receiving hole (151).

[0080] Accordingly, when the first permanent magnet (221) is positioned above the plunger receiving hole (151) according to the selected rotational direction of the magnetic wheel (220), an attractive force is generated between the first permanent magnet (221), which has a magnetic polarity different from that of the plunger (140), and as the plunger (140) rises, the pilot hole (105) is opened, and the fluid (water) contained in the upper space (111) of the diaphragm (110) is drained to the outlet (102) through the plunger receiving hole (151) and the pilot hole (105).

[0081] At this time, the pressure in the upper space (111) of the diaphragm (110) becomes relatively lower than the pressure in the lower space (112) of the diaphragm (110), causing the stem (120) and the diaphragm (110) to rise. As the stem (120) and the diaphragm (110) rise, the opening / closing port (103) is opened, thereby opening the flow path connecting the inlet port (101) to the outlet port (102) and opening the valve.

[0082] Additionally, when the second permanent magnet (222) is positioned above the plunger receiving hole (151) according to the selected rotation direction of the magnetic wheel (220), a repulsive force is generated between the second permanent magnet (222), which has the same magnetic polarity as the plunger (140), and the plunger (140) descends, thereby closing the pilot hole (105).

[0083] At this time, the pressure in the upper space (111) of the diaphragm (110) becomes relatively higher than the pressure in the lower space (112) of the diaphragm (110) (the elastic repulsive force of the pressure spring (130) is added), causing the stem (120) and the diaphragm (110) to descend. As the stem (120) and the diaphragm (110) descend, the opening / closing port (103) is closed, thereby closing the flow path connecting the inlet (101) to the outlet (102) and closing the valve.

[0084] And the above driving unit (300) includes an electric motor (310) and a gear (320), and the electric motor (310) is driven by power provided by the solar power communication control unit (400).

[0085] At this time, the gear (320) is coupled to the rotation axis of the electric motor (310), so that it rotates in the left or right direction depending on the rotation direction of the rotation axis.

[0086] The above-mentioned solar power communication control unit (400) includes a support bar (410), a panel housing (420), a solar panel (430) electrically connected to each other, a battery (440), a control module (450), and a communication module (460). The support bar (410) has a length in the vertical direction, the lower end of the support bar (410) is connected to the cover (150), and the panel housing (420) is connected to the upper end.

[0087] At this time, the support bar (410) is formed with a hollow interior so that wires, etc., can be accommodated along its length, and the lower end of the support bar (410) is fixed by a cap nut that is screw-coupled to the cover (150) so that it can be attached to the cover (150) detachably.

[0088] And it is preferable that the upper part of the support bar (410) be formed as a ball joint so that the panel housing (420) can be angle-adjusted in the up, down, left, and right directions.

[0089] The above panel housing (420) is a cuboid having an internal space, and the upper surface of the panel housing (420) is formed as an opening, and a solar panel (430) is coupled to the opening to form the upper surface of the panel housing (420).

[0090] And a battery (440), a control module (450), and a communication module (460) are built into the space of the panel housing (420).

[0091] The above solar panel (430) receives sunlight and produces electrical energy to charge the battery (440), and the charged electricity from the battery (440) is supplied to the control module (450) and the communication module (460).

[0092] Here, the control module (450) selectively applies a driving signal and an opening / closing signal to the driving unit (300) to electrically control the driving of the driving unit (300), and the communication module (460) receives a command to open / close the valve via wireless communication with the user's terminal or the central control unit, or transmits a message regarding the operating status of the valve (driving unit) to the user's terminal or the central control unit.

[0093] Therefore, the opening and closing of the opening and closing valve according to the present invention can be controlled using wireless communication from a long distance.

[0094] Additionally, the pressure switch unit (500) is provided in the valve body (100) and controls the power supply from the solar power communication control unit (400) to the driving unit (300) according to the pressure of the fluid.

[0095] The pressure switch unit (500) is positioned on a pressure channel (106) formed upward from an inlet (101) in the valve body (100), and controls the power supply from the solar power communication control unit (400) to the driving unit (300) by the water pressure of the fluid (water) flowing through the pressure channel (106) to the pressure switch unit (500) after the fluid (water) flowing into the valve body (100) through the inlet (101).

[0096] The pressure switch unit (500) includes a switch module (510), a guide body (520), a push member (530), a coil spring (540), and a balloon cap (550). The switch module (510) is provided with a push switch on a circuit board forming a power circuit. When the push switch of the switch module (510) is pressed, power charged in the battery (440) of the solar power communication control unit (400) is supplied to the driving unit (300), the control module (450), and the communication module (460).

[0097] And a guide body (520) is provided on the upper side of the pressure channel (106), and the guide body (520) is cylindrical with an open bottom surface, and a balloon cap (550), a push member (530), and a spring (540) are housed inside.

[0098] At this time, the balloon cap (550) is provided on the upper side of the pressure channel (106), and its volume expands as it is filled with fluid flowing in through the pressure channel (106).

[0099] The lower part of the balloon cap (550) is formed to be larger than the outer diameter of the guide body (520) so that the space between the guide body (520) and the pressure channel (106) is sealed by its own elasticity.

[0100] The push member (530) is positioned on the upper side of the balloon cap (550), and the push member (530) moves up and down along the internal space of the guide body (520), rising due to the volume expansion of the balloon cap (550), and a push bar is formed at the top that protrudes by penetrating the upper surface of the guide body (520).

[0101] When fluid (water) flows in through the open lower surface of the guide body (520), the volume of the balloon cap (550) expands due to the fluid (water) being filled, causing the push member (530) to rise along the internal space of the guide body (520). When the push member (530) rises, the push bar presses the push switch of the switch module (510), causing the push switch contact of the switch module (510) to switch to an a-contact, thereby turning the switch ON.

[0102] At this time, the power circuit of the switch module (510) includes a power maintenance circuit that maintains power supply for a certain period of time, so that even if the contact of the push switch is switched to an a-contact after the push switch is pressed by water pressure and the water pressure of the fluid is lowered by opening the valve and the contact of the push switch is switched to a b-contact, the power supply is maintained without being cut off for a certain period of time.

[0103] And the coil spring (540) is positioned above the push member (530) inside the guide body (520) and provides elasticity so that when the fluid filled in the balloon cap (550) is released and the pressure applied to the push member (530) is released, the push member (530) returns to its original position (lowered state) and the balloon cap (550) returns to its original state.

[0104] Accordingly, if fluid (water) does not flow into the inlet (101) of the valve body (100), the push member (530) and the balloon cap (550) return to their original positions (lowered state) and original states (volume contraction) by the elasticity of the coil spring (540), thereby releasing the push switch and switching to a b-contact, and when the switch module (510) receives a power off control command from the solar power communication control unit (400), it turns off the power.

[0105] The present invention has been described with reference to the embodiments illustrated in the drawings, but this is merely illustrative, and those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible therefrom. Accordingly, the true technical scope of protection of the present invention should be determined by the technical spirit of the appended claims. Explanation of the symbols

[0107] 100: Valve body 101: Inlet 102: Outlet 103: Opening / closing mechanism 104: Guide bulkhead 105: Pilot Hole 106: Pressure channel 107: Channel absence 110: Diaphragm 111: Upper space 112: Lower space 120: Stem 121: Central Hall 130: Pressure spring 140: Plunger 141: Body 142: Waterproofing material 143: Ringhook 144: Rubber tip 150: Cover 151: Plunger receiving hole 152: Sealing cap 200: Opening / closing control unit 210: Transition axis 211: Linkage Section 212: Stopper 220: Magnetic wheel 221: First permanent magnet 222: Second permanent magnet 223: Linked Home 230: Gear wheel 231: Pause 240: Control Cap 241: Compression spring 300: Drive unit 310: Electric motor 320: Gear 400: Solar power communication control unit 410: Jijiba 420: Panel housing 430: Solar panel 440: Battery 450: Control Module 460: Communication module 500: Pressure switch unit 510: Switch Module 520: Guide body 530: Push member 540: Spring 550: Balloon Cap

Claims

Claim 1 A valve body in which a diaphragm provided in an opening / closing port formed on a flow path communicating from an inlet to an outlet rises or falls due to a pressure difference between an upper space and a lower space, thereby selectively opening or closing the opening / closing port; an opening / closing control unit in which a pilot hole for draining fluid contained in the upper space of the diaphragm is formed adjacent to the outlet of the valve body, and a plunger for opening and closing the pilot hole is selectively raised or lowered to vary the pressure in the upper space of the diaphragm. A driving unit that is mechanically connected to the above-mentioned opening / closing control unit and generates rotational force with externally applied power to provide rotational force to the above-mentioned opening / closing control unit so that the pressure in the upper space of the diaphragm is variable; wherein the above-mentioned opening / closing control unit includes a switching shaft having a length in a vertical line in the vertical direction and optionally moving up and down in a vertical line in the vertical direction, a magnetic wheel equipped with a first permanent magnet having an attractive force with the plunger by magnetic force and a second permanent magnet having a repulsive force with the plunger by magnetic force, and a gear wheel that is partially connected to the above-mentioned magnetic wheel and has gear teeth formed on its outer surface and is mechanically connected to the driving unit, and the lower part of the switching shaft is penetrated and coupled to the connection part of the above-mentioned magnetic wheel and the gear wheel, so that the above-mentioned magnetic wheel and the gear wheel rotate with respect to the above-mentioned opening / closing valve. Claim 2 An opening / closing valve according to claim 1, further comprising: a sealing cap coupled to the upper side of the valve body and having a plunger receiving hole formed therein for receiving the plunger that selectively opens / closes the pilot hole; a cover coupled to the upper side of the sealing cap; a stem provided on the diaphragm to provide a load to the diaphragm; and a pressure spring disposed between the cover and the stem to press the diaphragm toward the opening / closing opening. Claim 3 An opening / closing valve according to claim 2, characterized in that a central hole is formed in the center of the stem to allow fluid introduced through the inlet to flow into the upper space of the diaphragm. Claim 4 An opening / closing valve according to claim 2, wherein the plunger receiving hole communicates with the upper space of the diaphragm, and when the plunger is raised and the pilot hole is opened, the fluid contained in the upper space of the diaphragm passes through the plunger receiving hole and the pilot hole and is drained to the outlet. Claim 5 An opening / closing valve according to claim 2, further comprising a solar power communication control unit that is charged by solar power and selectively supplies power to the driving unit by a control signal applied via wireless communication, and a pressure switch unit provided in the valve body and electrically connecting the solar power communication control unit and the driving unit by a fluid introduced through the inlet. Claim 6 An opening / closing valve according to claim 5, wherein the first permanent magnet has a magnetic polarity different from the upper surface magnetic polarity of the plunger, and the second permanent magnet has a magnetic polarity the same as the upper surface magnetic polarity of the plunger. Claim 7 An opening / closing valve according to claim 6, wherein the plunger is raised or lowered by the first permanent magnet or the second permanent magnet disposed on the upper side. Claim 8 An opening / closing valve according to claim 7, wherein the plunger comprises a body made of a cylindrical magnet, a ring hook made of a magnetic material coupled to the lower surface of the body, and a rubber tip coupled to the lower end of the ring hook and in contact with the upper end of the pilot hole to seal the pilot hole. Claim 9 In claim 8, the opening and closing valve, wherein the pilot hole has a channel member of a magnetic material at the hole entrance facing the lower side of the plunger. Claim 10 An opening / closing valve according to claim 9, characterized in that the rubber tip of the plunger is pressed against the inlet of the channel member by the magnetic force of the body, thereby tightly closing the pilot hole. Claim 11 The opening / closing valve according to claim 6, wherein the opening / closing control unit further comprises an operating cap coupled to the upper side of the switching shaft and a compression spring provided inside the operating cap, which elastically maintains the switching shaft in its original position (raised position). Claim 12 An opening / closing valve according to claim 11, characterized in that the outer surface of the switching shaft has a connecting piece that is fitted into a connecting groove formed in the magnetic wheel when the switching shaft is lowered and transmits rotational force to the magnetic wheel, and a stopper that is seated on a stopping piece formed in the gear wheel when the switching shaft is lowered and limits the lowering height of the switching shaft. Claim 13 An opening / closing valve according to claim 1, wherein the pressure switch unit is electrically connected to the solar communication control unit and the driving unit, and the switch module enables power supply from the solar communication control unit to the driving unit by switching the a-contact of the push switch; a guide body formed as a cylinder with an open bottom surface and provided in a pressure channel formed on the inlet side of the valve body; a balloon cap provided inside the guide body, which expands in volume by filling with fluid flowing in through the pressure channel; a push member provided above the balloon cap inside the guide body, which rises due to the volume expansion of the balloon cap and pressurizes the push switch of the switch module; and a coil spring provided above the push member inside the guide body, which returns the push member to its original position by elasticity when there is no inflow of fluid into the guide body. Claim 14 An opening / closing valve according to claim 13, wherein the push member is formed by protruding upward a push bar through the upper surface of the guide body, the upper end of which selectively contacts a push switch.

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