Self-holding fire-fighting electromagnetic valve with bistable state

Abstract

The invention discloses a self-holding fire-fighting electromagnetic valve with a bistable state, and relates to the technical field of valves. The self-holding fire-fighting electromagnetic valve with the bistable state comprises a valve body, the valve body comprises a valve body, a round blind hole is formed in the right side of the valve body, the top of the valve body communicates with a valve box, the bottom of the valve box communicates with the blind hole in the right side of the valve body, and the front face of the valve body communicates with a turbulent flow acceleration mechanism; the turbulent flow acceleration mechanism comprises a rear acceleration pipe, a main body pipe and an eccentric blade, the turbulent flow acceleration mechanism is communicated with a blind hole in the right side of the valve body, and the top of the valve body is fixedly connected with a vibration unblocking mechanism. According to the self-holding fire-fighting electromagnetic valve with the bistable state, through the arrangement of the magnetic conduction support, the lubricating copper sleeve, the vibration unblocking mechanism and the turbulent flow acceleration mechanism, stable fixing after the movable iron core is opened is achieved, vertical unblocking and transverse unblocking of a valve channel are achieved, and the reliability of the valve is improved.

Description

Technical Field

[0001] The invention relates to the technical field of valves, in particular to a self-holding fire-fighting electromagnetic valve with a bistable state. Background Art

[0002] Solenoid valves are industrial equipment controlled by electromagnetics and are basic automation components used to control fluids. In the spray fire extinguishing process of energy storage fire protection systems, solenoid valves are often used to control the spraying of fire extinguishing media such as carbon dioxide and aerosols.

[0003] The patent application with publication number CN202501083U discloses a self-holding fire-fighting solenoid valve with a manual device, including an upper valve body, a lower valve body, and an electromagnetic coil. A fixed iron core is arranged at the top of the inner cavity of the upper valve body, and the fixed iron core is connected to the moving iron core through a moving iron core return spring. A sealing gasket is arranged at the lower end of the moving iron core. The lower valve body includes a water inlet, a water outlet, a valve port and a piston. A self-holding valve control device is arranged on one side of the upper valve body, and a manual valve opening device is arranged on the other side.

[0004] The manual release mechanism of the self-holding fire-fighting solenoid valve with a manual device is affected by various factors when not used for a long time, resulting in valve failure, thereby affecting the reliability of the solenoid valve at a critical moment. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a bistable self-holding fire-fighting solenoid valve to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a self-holding fire-fighting solenoid valve with a bistable state, comprising a valve body, the valve body comprising a valve body, a circular blind hole is opened on the right side of the valve body, a valve box is connected to the top of the valve body, the bottom of the valve box is connected to the blind hole on the right side of the valve body, a flow disturbance acceleration mechanism is connected to the front of the valve body, the flow disturbance acceleration mechanism is connected to the blind hole on the right side of the valve body, and a vibration clearing mechanism is fixedly connected to the top of the valve body; The spoiler acceleration mechanism comprises: A rear acceleration tube, the back of which is connected to the front of the valve body, and is used to accelerate the fire extinguishing medium fluid when it enters the valve body; A main body pipe, the back of which is connected to the front of the rear acceleration pipe, and is used to limit the flow direction of the fire extinguishing medium; The eccentric blade is fixedly connected to the front side of the main body pipe and is used to stir and disperse the fire extinguishing medium to prevent the fire extinguishing medium from being blocked.

[0007] Preferably, a circular blind hole is provided on the top of the valve body, and a circular hole connected to the blind hole on the right side of the valve body is provided at the bottom of the circular blind hole of the valve body, the circular hole is located on the left side of the blind hole on the right side of the valve body, the right side of the valve body is fixedly connected to a cover plate by bolts, the back side of the valve body is connected to a parallel connection port, and the parallel connection port is connected to the circular blind hole on the top of the valve body, a lubricating copper sleeve is fixedly connected to the inside of the blind hole on the right side of the valve body, the lubricating copper sleeve is made of copper, and the inner surface of the lubricating copper sleeve is inlaid with graphite material, a one-way valve head is slidably connected to the inside of the lubricating copper sleeve, an atomizing head is fixedly connected to the inside of the lubricating copper sleeve, a nozzle is fixedly connected to the inside of the blind hole on the right side of the valve body, and there are two circular blind holes on the top of the valve body, and the other one is located at the top of the lubricating copper sleeve.

[0008] Preferably, the lubricating copper sleeve is used to lubricate the sliding process of the one-way valve head, circular through holes are penetrated on the left and right sides of the one-way valve head, the right side of the one-way valve head is fixedly connected to the left side of the atomizing head through a spring, the atomizing head is used to refine the fire extinguishing medium into a mist, the atomizing head is connected to the nozzle, the nozzle is located on the left side of the cover plate, and a rubber pad is fixedly connected between the nozzle and the cover plate.

[0009] Preferably, the valve box includes a magnetic isolation tube seat, which is used to prevent the magnetic isolation tube seat from being completely adsorbed on the iron core and affecting the activity of the iron core. The magnetic isolation tube seat includes a magnetic isolation tube body, the bottom of the magnetic isolation tube body is connected to the blind hole at the top of the valve body, an O-ring is sleeved between the bottom of the magnetic isolation tube body and the blind hole at the top of the valve body, the top of the magnetic isolation tube body is fixedly connected to a round tube, the top of the magnetic isolation tube body is fixedly connected to a valve shell, the bottom of the magnetic isolation tube body is fixedly connected to a magnetic isolation ring, the valve shell includes a shell, the bottom of the shell is fixedly connected to the top of the magnetic isolation tube body, the bottom of the shell is sleeved with the round tube at the top of the magnetic isolation tube body, the front of the shell is connected to a joint cover, the top of the round tube of the shell is fixedly connected to a fixed iron core, the top of the fixed iron core is fixedly connected to a magnetic conductive plate by screws for transferring magnetism to the fixed iron core, the magnetic conductive plate is plugged into the top of the shell, the surface of the round tube of the shell is sleeved with a coil tube, the coil tube includes a pin, the pin is plugged into the inside of the joint cover, and the front of the pin is connected to two pins for connecting to an external power supply line to generate electromagnetic force.

[0010] Preferably, a movable iron core is slidably connected inside the circular tube at the top of the shell, and the movable iron core includes a core body. The surface of the core body is slidably connected to the circular tube of the shell, and is used to realize the opening and closing of the valve under the action of electromagnetic force. A sealing head is inserted into the bottom of the core body through a cylindrical rod, and a rotating scraper is rotatably connected to the bottom of the sealing head. The rotating scraper is rotatably connected to the cylindrical rod at the bottom of the core body, and the rotating scraper is located at the circular hole at the bottom of the circular blind hole of the valve body. The rotating scraper is used to clear the circular hole driven by the core body to prevent blockage. The top of the core body is fixedly connected to the fixed iron core through a spring, and an O-ring is sleeved between the core body and the magnetic isolation ring.

[0011] Preferably, a magnetic bracket is fixedly connected to the bottom of the inner wall of the shell, and the magnetic bracket includes a main frame. The bottom of the main frame is plugged into the round tube of the shell. There are two main frames, and the other one is located at the top inside the shell and is symmetrically distributed inside the shell. A permanent magnet is fixedly connected between the gaps on the left side of the main frame, and the N pole of the permanent magnet is located at the top and the S pole is located at the bottom, which is used to stabilize the position of the core by magnetic force after the valve is opened.

[0012] Preferably, the rear acceleration tube includes a rear tube body, the back side of the rear tube body is connected to the circular blind hole on the top of the valve body, so as to enable the entry of fire extinguishing medium, a rear spoiler is fixedly connected to the interior of the rear tube body, so as to accelerate the fire extinguishing medium, four rear spoilers are evenly distributed inside the rear tube body about the central axis of the rear tube body, the main tube includes a tube body, the back side of the tube body is connected to the front side of the rear tube body, a cross bracket is fixedly connected to the back side of the tube body, a circular through hole is connected to the front side of the cross bracket, so as to limit the position of the eccentric blade, the right side of the main tube is connected to the front acceleration tube, the front acceleration tube includes a front tube body, the left side of the front tube body is connected to the right side of the tube body, a front spoiler is fixedly connected to the interior of the front tube body, four front spoilers are evenly distributed about the central axis of the front tube body, so as to accelerate the fire extinguishing medium entering the valve.

[0013] Preferably, the eccentric blades include a power motor, which is fixedly connected to the front side of the tube body for providing power. The power motor is electrically connected to an external power supply line through a wire. A metal round rod is fixedly connected to the back side of the power motor through a motor shaft. Long curved blades are fixedly connected to the back side of the power motor through the metal round rod. The long curved blades are located at the top of the metal round rod. Short curved blades are fixedly connected to the back side of the power motor through the metal round rod. The front cross-sections of the long curved blades and the short curved blades are both curved surfaces. The distance from the end point of the long curved blade to the metal round rod is greater than the distance from the end point of the short curved blade to the metal round rod, which is used to achieve eccentricity and generate vibration during rotation. The back side of the metal round rod is rotatably connected to the circular through hole of the cross bracket.

[0014] Preferably, the vibration clearing mechanism includes a motor bracket, which is fixedly connected to the top of the valve body, the motor bracket is located on the right side of the valve box, a vibration motor is fixedly connected to the top of the motor bracket, the vibration motor is electrically connected to an external power supply line through a wire, an eccentric trigger wheel is fixedly connected to the left side of the vibration motor through the motor shaft, and an impact rod is slidably connected to the circular blind hole on the top of the lubricating copper sleeve for impacting the lubricating copper sleeve to generate vibration under the extrusion of the eccentric trigger wheel.

[0015] Preferably, the impact rod is located at the bottom of the eccentric trigger wheel, the impact rod includes a rod body, a contact plate is fixedly connected to the top of the rod body for achieving contact with the eccentric trigger wheel, the top of the contact plate is covered with a rubber layer for reducing wear, a limit plate is fixedly connected to the surface of the rod body, the limit plate is located at the bottom of the contact plate, the bottom of the limit plate is fixedly connected to the valve body through a spring, a rubber impact head is fixedly connected to the bottom of the rod body, the surface of the rubber impact head is covered with a rubber layer, which is used to impact the lubricating copper sleeve to generate vibration under the drive of the rod body.

[0016] The present invention provides a self-holding fire-fighting solenoid valve with bistable state, which has the following beneficial effects: 1. This self-holding fire-fighting solenoid valve with bistable state realizes stable fixation of the movable iron core after opening by setting a magnetic conductive bracket and cooperating with a permanent magnet, thereby improving the stability of the valve in maintaining an open state. The movable iron core cooperates with a rotating scraper to realize vertical clearing when the valve is opened and closed, and realizes horizontal clearing when the valve is opened to flow in the fire extinguishing medium, thereby preventing the valve from being blocked due to channel blockage and improving the reliability of the valve.

[0017] 2. This self-retaining fire-fighting solenoid valve with a bistable state is provided with a lubricating copper sleeve and cooperates with a one-way valve head to achieve lubrication of the one-way valve head when it slides, thereby preventing valve clogging due to the sticking of the one-way valve head, and improving the reliability of the valve when controlling the opening and closing state. The lubricating copper sleeve cooperates with the vibration clearing mechanism to transmit vibration to the lubricating copper sleeve, thereby achieving loosening of the lubricating copper sleeve and the one-way sliding head, thereby preventing valve clogging due to the sticking of the one-way valve head.

[0018] 3. This self-holding fire-fighting solenoid valve with a bistable state is provided with a turbulence acceleration mechanism, and uses an eccentric blade to stir and turbulently stir the fire-extinguishing medium entering the valve, so as to prevent the agglomeration of the fire-extinguishing medium from causing the valve to be blocked, thereby improving the reliability of the valve when controlling the opening and closing state. At the same time, the vibration generated by the rotation of the eccentric blade can prevent the fire-extinguishing medium from adhering to the inside of the pipe body and causing the turbulence acceleration mechanism to be blocked, thereby helping to improve the reliability of the valve.

[0019] 4. This self-holding fire-fighting solenoid valve with bistable state accelerates and disperses the fire-extinguishing medium entering the turbulent acceleration mechanism and the valve body by setting up a front and rear two-stage acceleration tube mechanism, thereby increasing the flow velocity of the fire-extinguishing medium to a certain extent, preventing the fire-extinguishing medium from agglomerating and adhering to the valve and clogging it, thereby improving the reliability of the valve. The acceleration tube mechanism cooperates with the eccentric blade mechanism to improve the effect of breaking up the fire-extinguishing medium, further improving the reliability of the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the front side of the present invention; Figure 2It is a schematic diagram of the overall structure of the back side of the present invention; Figure 3 It is a right side cross-sectional view showing the positional relationship between the valve body and the valve box of the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the structure at B in FIG. Figure 5 This is a schematic diagram of the positional relationship between the movable iron core and the sealing head of the present invention; Figure 6 It is a rear cross-sectional view of the position relationship of the magnetic isolation ring of the magnetic isolation tube body of the present invention; Figure 7 It is a schematic diagram of the bottom of the overall structure of the magnetic isolation ring of the present invention; Figure 8 It is a rear cross-sectional view showing the positional relationship between the valve body and the valve box of the present invention; Fig. 9 This is a schematic diagram of the overall structure of the magnetic conductive bracket of the present invention; Fig.10 This is a cross-sectional view of the internal structure of the front accelerating tube of the present invention; Fig.11 This is a cross-sectional view of the internal structure of the main tube of the present invention; Fig.12 This is a schematic diagram of the overall structure of the eccentric blade of the present invention; Fig.13 For the present invention Figure 1 A schematic diagram of the structure enlargement at point A; Fig.14 For the present invention Figure 8 Schematic diagram of the enlarged structure at position C in FIG.

[0021] In the figure: 1. Valve body; 11. Valve body; 12. Cover plate; 13. Parallel connection port; 14. Lubricating copper sleeve; 15. Check valve head; 16. Atomizing head; 17. Spray head; 2. Valve box; 21. Magnetic isolation pipe seat; 211. Magnetic isolation pipe body; 212. Magnetic isolation sleeve ring; 22. Valve shell; 221. Shell; 222. Joint cover; 23. Magnetic conductive bracket; 231. Main frame; 232. Permanent magnet; 24. Coil tube; 25. Magnetic conductive plate; 26. Fixed iron core; 27. Movable iron core; 271. Core body; 272. Rotating scraper; 28. Sealing head; 3. Turbine Acceleration mechanism; 31, front acceleration tube; 311, front tube body; 312, front spoiler; 32, main tube; 321, tube body; 322, cross bracket; 33, eccentric blade; 331, power motor; 332, long curved blade; 333, short curved blade; 34, rear acceleration tube; 341, rear tube body; 342, rear spoiler; 4, vibration clearing mechanism; 41, motor bracket; 42, vibration motor; 43, eccentric trigger wheel; 44, impact rod; 441, rod body; 442, contact plate; 443, limit plate; 444, rubber impact head. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0024] Example 1: Please refer to Figure 1-9 The present invention provides a technical solution: a self-holding fire-fighting solenoid valve with a bistable state, comprising a valve body 1, the valve body 1 comprising a valve body 11, a circular blind hole is provided on the right side of the valve body 11, a circular blind hole is provided on the top of the valve body 11, a circular hole connected to the blind hole on the right side of the valve body 11 is provided at the bottom of the circular blind hole of the valve body 11, the circular hole is located on the left side of the blind hole on the right side of the valve body 11, a circular short tube is connected to the top of the circular hole, a cover plate 12 is fixedly connected to the right side of the valve body 11 by bolts, a parallel connection port 13 is connected to the back side of the valve body 11 for connecting other pipelines and the solenoid valve, and the parallel connection port 13 is connected to the circular blind hole on the top of the valve body 11, a lubricating copper sleeve 14 is fixedly connected to the inside of the blind hole on the right side of the valve body 11, and the lubricating copper sleeve 14 is made of Copper, the inner surface of the lubricating copper sleeve 14 is inlaid with graphite material, a one-way valve head 15 is slidably connected inside the lubricating copper sleeve 14, an atomizing head 16 is fixedly connected inside the lubricating copper sleeve 14, the lubricating copper sleeve 14 is used to lubricate the sliding process of the one-way valve head 15, circular through holes are penetrated on the left and right sides of the one-way valve head 15, the right side of the one-way valve head 15 is fixedly connected to the left side of the atomizing head 16 through a spring, the atomizing head 16 is used to refine the fire extinguishing medium into mist, a nozzle 17 is fixedly connected inside the blind hole on the right side of the valve body 11, the atomizing head 16 is connected to the nozzle 17, the nozzle 17 is located on the left side of the cover plate 12, a rubber pad is fixedly connected between the nozzle 17 and the cover plate 12, there are two circular blind holes on the top of the valve body 11, and the other is located on the top of the lubricating copper sleeve 14; The top of the valve body 11 is connected to a valve box 2, and the bottom of the valve box 2 is connected to a blind hole on the right side of the valve body 11. The valve box 2 includes a magnetic isolation tube seat 21, which is used to prevent the magnetic isolation tube seat 21 from being completely adsorbed to the iron core and affecting the activity of the iron core. The magnetic isolation tube seat 21 includes a magnetic isolation tube body 211, and the bottom of the magnetic isolation tube body 211 is connected to a blind hole at the top of the valve body 11. An O-ring is sleeved between the bottom of the magnetic isolation tube body 211 and the blind hole at the top of the valve body 11. A round tube is fixedly connected to the top of the magnetic isolation tube body 211, and a valve shell 22 is fixedly connected to the top of the magnetic isolation tube body 211. A magnetic isolation ring 212 is fixedly connected to the bottom of the magnetic isolation tube body 211, which is used to prevent the movable iron core 27 from being directly adsorbed on the inner wall of the blind hole at the top of the valve body 11. The valve housing 22 includes a shell 221, the bottom of the shell 221 is fixedly connected to the top of the magnetic isolation tube body 211, the bottom of the shell 221 is sleeved with the round tube on the top of the magnetic isolation tube body 211, the front of the shell 221 is connected with a joint cover 222, the top of the round tube of the shell 221 is fixedly connected to a fixed iron core 26, the top of the fixed iron core 26 is fixedly connected to a magnetic plate 25 by screws for transmitting magnetism to the fixed iron core 26, the magnetic plate 25 is plugged into the top of the shell 221, the surface of the round tube of the shell 221 is sleeved with a coil tube 24, the coil tube 24 includes a plug, the plug is plugged into the inside of the joint cover 222, and the front of the plug is connected with two pins for connecting to an external power supply line to generate electromagnetic force; A movable iron core 27 is slidably connected inside the round tube at the top of the shell 221. The movable iron core 27 includes a core body 271. The surface of the core body 271 is slidably connected to the round tube of the shell 221, and is used to realize the opening and closing of the valve under the action of electromagnetic force. A sealing head 28 is inserted into the bottom of the core body 271 through a cylindrical rod. A rotating scraper 272 is rotatably connected to the bottom of the sealing head 28. The rotating scraper 272 is rotatably connected to the cylindrical rod at the bottom of the core body 271. The rotating scraper 272 is located at the circular hole at the bottom of the circular blind hole of the valve body 11. The rotating scraper 272 is used to slide up and down in the circular hole at the bottom of the blind hole of the valve body 11 under the drive of the core body 271, thereby dredging the fire extinguishing medium retained in the circular hole to prevent the fire extinguishing medium from clogging the valve body 11. The top of the core body 271 is fixedly connected to the fixed iron core 26 through a spring, and an O-ring is sleeved between the core body 271 and the magnetic isolation ring 212. The bottom of the inner wall of the shell 221 is fixedly connected with a magnetic support 23, which includes a main frame 231. The bottom of the main frame 231 is plugged into the round tube of the shell 221. There are two main frames 231, and the other one is located at the top of the shell 221 and is symmetrically distributed inside the shell 221. A permanent magnet 232 is fixedly connected between the gaps on the left side of the main frame 231. The N pole of the permanent magnet 232 is located at the top and the S pole is located at the bottom, which is used to stabilize the position of the core 271 by magnetic force after the valve is opened; The front side of the valve body 11 is connected with a flow disturbance acceleration mechanism 3 , the flow disturbance acceleration mechanism 3 is connected with a blind hole on the right side of the valve body 11 , and the top of the valve body 11 is fixedly connected with a vibration clearing mechanism 4 .

[0025] During use, when a fire occurs in the area where the solenoid valve is located, the fire protection system transmits current to the solenoid valve through the wire, and the control valve box 2, the flow disturbance acceleration mechanism 3, and the vibration clearing mechanism 4 are started. At this time, the coil tube 24 generates an upward electromagnetic force after receiving the current, and the electromagnetic force of the permanent magnet 232 is transmitted to the magnetic conductive plate 25 through the main frame 231, and then transmitted to the fixed iron core 26. The coil tube 24, the permanent magnet 232, and the fixed iron core 26 together absorb the core body 271. The core body 271 moves upward under the action of the electromagnetic force, and at the same time squeezes the spring until the top of the core body 271 is absorbed by the bottom of the fixed iron core 26, and the core body 271 drives the sealing head 28 to move upward , and then release the closed state of the blind hole on the top of the valve body 11 by the movable iron core 27 and the sealing head 28, and the fire extinguishing medium enters the device through the turbulent acceleration mechanism 3, a part of it passes through the parallel connection port 13 to enter other solenoid valves, and the other part enters the blind hole on the right side of the valve body 11 from the circular through hole opened at the bottom of the sealing head 28. After the fire extinguishing medium enters the blind hole on the right side of the valve body 11, it pushes the one-way valve head 15 to slide along the inside of the lubricating copper sleeve 14 until the one-way valve head 15 leaks out of the through hole, and the fire extinguishing medium enters the inside of the lubricating copper sleeve 14 from the through hole, and then after being finely atomized by the atomizing head 16, it flies out in a spray state through the nozzle 17, spraying on the fire location to complete the fire extinguishing; After the adsorption is completed, the fire protection system stops supplying power to the coil tube 24, and the core body 271 maintains the open position under the magnetic adsorption of the permanent magnet 232. At the same time, the fire extinguishing medium entering the valve body 11 squeezes the sealing head 28 upward, thereby lifting the core body 271, further stabilizing the opening of the core body 271. When the fire extinguishing is completed and the spraying mechanism needs to be closed, the fire protection system passes a reverse current to the coil tube 24 through the wire, and at the same time closes the turbulence acceleration mechanism 3 and the vibration clearing mechanism 4. The coil tube 24 generates a reverse electromagnetic force acting on the core body 271. Under the action of the electromagnetic force, the core body 271 is separated from the fixed iron core 26 and adsorbed and reset, and the sealing head 28 re-blocks the circular blind hole inside the valve body 11, thereby achieving valve closure. When the core body 271 is opened, the movable iron core 27 slides upward under the action of the electromagnetic force. When the core body 271 is closed, the movable iron core 27 slides downward under the action of the electromagnetic force. When the movable iron core 27 slides upward or downward, the rotating scraper 272, driven by the core body 271, vertically scrapes the inner wall of the circular hole at the bottom of the blind hole of the valve body 11 where the rotating scraper 272 is located, thereby removing the fire extinguishing medium or other impurities that may adhere to the inside of the hole, and at the same time clearing the fire extinguishing medium retained in the circular hole to prevent the fire extinguishing medium from clogging the valve body 11. When the fire extinguishing medium passes into the valve body 11, the fire extinguishing medium flows through the blades of the rotating scraper 272, and the flowing fire extinguishing medium drives the rotating scraper 272 to rotate, thereby allowing the rotating scraper 272 to scrape and clean the fire extinguishing medium attached to the inner wall of the circular hole in the horizontal direction.

[0026] Example 2: Please refer to Figure 1-12Based on the first embodiment, the present invention provides a technical solution: the spoiler acceleration mechanism 3 includes: The front accelerating tube 31 is connected to the right side of the main tube 32. The front accelerating tube 31 includes a front tube body 311. The left side of the front tube body 311 is connected to the right side of the tube body 321. A front spoiler 312 is fixedly connected inside the front tube body 311. There are four front spoilers 312 that are evenly distributed about the central axis of the front tube body 311, and are used to accelerate the fire extinguishing medium entering the valve. The main body tube 32, the back of the main body tube 32 is connected to the front of the rear acceleration tube 34, and is used to limit the flow direction of the fire extinguishing medium. The main body tube 32 includes a tube body 321, the back of the tube body 321 is connected to the front of the rear tube body 341, and a cross bracket 322 is fixedly connected to the back of the tube body 321. The front of the cross bracket 322 is connected to a circular through hole, and is used to limit the position of the eccentric blade 33; The eccentric blade 33 is fixedly connected to the front of the main tube 32 and is used to stir and disperse the fire extinguishing medium to prevent the fire extinguishing medium from being blocked. The eccentric blade 33 includes a power motor 331, which is fixedly connected to the front of the tube body 321 and is used to provide power. The power motor 331 is electrically connected to an external power supply line through a wire. A metal round rod is fixedly connected to the back of the power motor 331 through a motor shaft. A long curved blade 332 is fixedly connected to the back of the power motor 331 through a metal round rod. The long curved blade 332 is located at the top of the metal round rod. A short curved blade 333 is fixedly connected to the back of the power motor 331 through a metal round rod. The front cross-sections of the long curved blade 332 and the short curved blade 333 are both curved surfaces. The distance from the end point of the long curved blade 332 to the metal round rod is greater than the distance from the end point of the short curved blade 333 to the metal round rod, which is used to achieve eccentric rotation and generate vibration during rotation. The back of the metal round rod is rotatably connected to the circular through hole of the cross bracket 322. The rear acceleration tube 34, the back of which is connected to the front of the valve body 11, is used to accelerate the fire extinguishing medium fluid when it enters the valve body 1. The rear acceleration tube 34 includes a rear tube body 341, the back of which is connected to the circular blind hole on the top of the valve body 11, so as to enable the entry of the fire extinguishing medium. A rear spoiler 342 is fixedly connected inside the rear tube body 341 to accelerate the fire extinguishing medium. There are four rear spoilers 342, which are evenly distributed inside the rear tube body 341 about the central axis of the rear tube body 341.

[0027] When in use, after the valve is started, the power motor 331 is started, and the power motor 331 starts to drive the long curved blade 332 and the short curved blade 333 to rotate and generate vibration at the same time, and the fire extinguishing medium passes through the front tube body 311 and enters the main tube 32. In the process of entering the front acceleration tube 31, the fire extinguishing medium is accelerated under the reaction force of the front tube body 311 after passing through the front tube body 311, and enters the main tube 32 at a higher speed. The fire extinguishing medium entering the main tube 32 is broken up by the long curved blade 332 and the short curved blade 333, thereby preventing the fire extinguishing medium from agglomerating and causing blockage. The broken up fire extinguishing medium enters the rear tube body 341, and enters the valve body 11 at a higher speed after being accelerated by the rear spoiler 342; During the breaking up process, the vibration generated by the rotation of the eccentric blade 33 is transmitted to the fire extinguishing medium in contact with it, promoting the loosening of the fire extinguishing medium. At the same time, the vibration is transmitted to the surface of the tube body 321 through the metal round rod, promoting the loosening of the fire extinguishing medium adhered to the inner surface of the tube body 321.

[0028] Example 3: Please refer to Figure 1-14 , on the basis of the first and second embodiments, the present invention provides a technical solution: the vibration clearing mechanism 4 includes a motor bracket 41, the motor bracket 41 is fixedly connected to the top of the valve body 11, the motor bracket 41 is located on the right side of the valve box 2, a vibration motor 42 is fixedly connected to the top of the motor bracket 41, the vibration motor 42 is electrically connected to the external power supply line through a wire, an eccentric trigger wheel 43 is fixedly connected to the left side of the vibration motor 42 through the motor shaft, and a striking rod 44 is slidably connected to the circular blind hole on the top of the lubricating copper sleeve 14, which is used to strike the lubricating copper sleeve 14 to generate vibration under the extrusion of the eccentric trigger wheel 43; The impact rod 44 is located at the bottom of the eccentric trigger wheel 43, and the impact rod 44 includes a rod body 441. A contact plate 442 is fixedly connected to the top of the rod body 441 for achieving contact with the eccentric trigger wheel 43. The top of the contact plate 442 is covered with a rubber layer for reducing wear. A limit plate 443 is fixedly connected to the surface of the rod body 441. The limit plate 443 is located at the bottom of the contact plate 442. The bottom of the limit plate 443 is fixedly connected to the valve body 11 through a spring. A rubber impact head 444 is fixedly connected to the bottom of the rod body 441. The surface of the rubber impact head 444 is covered with a rubber layer for impacting the lubricating copper sleeve 14 to generate vibration under the drive of the rod body 441.

[0029] When in use, after the valve is opened, the vibration motor 42 is started under the control of the fire protection system. The vibration motor 42 starts and drives the eccentric trigger wheel 43 to rotate. After the eccentric trigger wheel 43 rotates, it periodically squeezes the contact plate 442. After the contact plate 442 is squeezed, it drives the rod body 441, the limit plate 443, and the rubber impact head 444 to move downward, and at the same time squeezes the spring. The rubber impact head 444 collides with the lubricating copper sleeve 14 and vibrates, which promotes the fire extinguishing medium adhering to the inner wall of the lubricating copper sleeve 14 to detach from the adhesion, and the vibration is transmitted to the one-way valve head 15, which promotes the loosening of the one-way valve head 15 and the lubricating copper sleeve 14. At the same time, the vibration is transmitted to the atomizing head 16, which promotes the loosening of the internal fire extinguishing medium through vibration.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A bistable self-holding fire-fighting solenoid valve, comprising a valve body (1), characterized in that: The valve body (1) comprises a valve body (11), a circular blind hole is formed on the right side of the valve body (11), the top of the valve body (11) is connected to a valve box (2), the bottom of the valve box (2) is connected to the blind hole on the right side of the valve body (11), the front of the valve body (11) is connected to a flow turbulence acceleration mechanism (3), the flow turbulence acceleration mechanism (3) is connected to the blind hole on the right side of the valve body (11), and the top of the valve body (11) is fixedly connected to a vibration clearing mechanism (4); The turbulence acceleration mechanism (3) comprises: a rear acceleration tube (34), the rear side of the rear acceleration tube (34) being in communication with the front side of the valve body (11) and being used to accelerate the fire extinguishing medium fluid when it enters the valve body (1); A main body pipe (32), the back side of the main body pipe (32) being connected to the front side of the rear acceleration pipe (34) and used for limiting the flow direction of the fire extinguishing medium; The eccentric blade (33) is fixedly connected to the front side of the main body tube (32) and is used to stir and disperse the fire extinguishing medium to prevent the fire extinguishing medium from being blocked.

2. A bistable self-holding fire-fighting solenoid valve according to claim 1, characterized in that: The valve body (11) has a circular blind hole at the top, a circular hole in communication with the blind hole on the right side of the valve body (11) is at the bottom of the circular blind hole of the valve body (11), the circular hole being located on the left side of the blind hole on the right side of the valve body (11), a cover plate (12) being fixedly connected to the right side of the valve body (11) by bolts, a parallel connection port (13) being connected to the back side of the valve body (11), the parallel connection port (13) being connected to the circular blind hole at the top of the valve body (11), and a fixed portion of the blind hole on the right side of the valve body (11) being provided inside the cover plate (12). A lubricating copper sleeve (14) is fixedly connected thereto. The lubricating copper sleeve (14) is made of copper. The inner surface of the lubricating copper sleeve (14) is inlaid with graphite material. A one-way valve head (15) is slidably connected to the inside of the lubricating copper sleeve (14). An atomizing head (16) is fixedly connected to the inside of the lubricating copper sleeve (14). A nozzle (17) is fixedly connected to the inside of the blind hole on the right side of the valve body (11). There are two circular blind holes on the top of the valve body (11), and the other one is located at the top of the lubricating copper sleeve (14).

3. A bistable self-holding fire-fighting solenoid valve according to claim 2, characterized in that: The lubricating copper sleeve (14) is used to lubricate the sliding process of the one-way valve head (15). The one-way valve head (15) has circular through holes on both sides. The right side of the one-way valve head (15) is fixedly connected to the left side of the atomizing head (16) via a spring. The atomizing head (16) is used to refine the fire extinguishing medium into mist. The atomizing head (16) is connected to a nozzle (17). The nozzle (17) is located on the left side of the cover plate (12). A rubber pad is fixedly connected between the nozzle (17) and the cover plate (12).

4. A bistable self-holding fire-fighting solenoid valve according to claim 2, characterized in that: The valve box (2) comprises a magnetic isolation tube seat (21) for preventing the magnetic isolation tube seat (21) from being completely adsorbed to the iron core and affecting the movement of the iron core; the magnetic isolation tube seat (21) comprises a magnetic isolation tube body (211); the bottom of the magnetic isolation tube body (211) is connected to a blind hole at the top of the valve body (11); an O-ring is sleeved between the bottom of the magnetic isolation tube body (211) and the blind hole at the top of the valve body (11); the top of the magnetic isolation tube body (211) is fixedly connected to a round tube; the top of the magnetic isolation tube body (211) is fixedly connected to a valve housing (22); the bottom of the magnetic isolation tube body (211) is fixedly connected to a magnetic isolation collar (212); the valve housing (22) comprises a shell (221); the bottom of the shell (221) is connected to the magnetic isolation tube body (2 11) The top of the shell (221) is fixedly connected, the bottom of the shell (221) is sleeved with the top round tube of the magnetic isolation tube body (211), the front of the shell (221) is connected to a joint cover (222), the top of the round tube of the shell (221) is fixedly connected to a fixed iron core (26), the top of the fixed iron core (26) is fixedly connected to a magnetic conductive plate (25) by screws, and is used to transfer magnetism to the fixed iron core (26), the magnetic conductive plate (25) is plugged into the top of the shell (221), the surface of the round tube of the shell (221) is sleeved with a coil tube (24), the coil tube (24) includes a plug, the plug is plugged into the inside of the joint cover (222), and the front of the plug is connected to two pins, which are used to connect to an external power supply line to generate electromagnetic force.

5. A bistable self-holding fire-fighting solenoid valve according to claim 4, characterized in that: A movable iron core (27) is slidably connected inside the circular tube at the top of the shell (221), and the movable iron core (27) comprises a core body (271). The surface of the core body (271) is slidably connected to the magnetic isolation ring (212). The surface of the core body (271) is slidably connected to the circular tube of the shell (221) for opening and closing the valve under the action of electromagnetic force. A sealing head (28) is inserted at the bottom of the core body (271) through a cylindrical rod, and the bottom of the sealing head (28) is rotatably connected to a rotary valve. A movable scraper (272), the movable scraper (272) being rotatably connected to a cylindrical rod at the bottom of the core body (271), the movable scraper (272) being located at a circular hole at the bottom of a circular blind hole of the valve body (11), the movable scraper (272) being used to clear the circular hole driven by the core body (271) to prevent blockage, the top of the core body (271) being fixedly connected to a fixed iron core (26) via a spring, and an O-ring being sleeved between the core body (271) and a magnetic isolation ring (212).

6. A bistable self-holding fire-fighting solenoid valve according to claim 5, characterized in that: A magnetic support (23) is fixedly connected to the bottom of the inner wall of the shell (221), and the magnetic support (23) comprises a main frame (231). The bottom of the main frame (231) is plugged into the round tube of the shell (221). There are two main frames (231), and the other one is located at the top of the shell (221) and is symmetrically distributed inside the shell (221). A permanent magnet (232) is fixedly connected between the gaps on the left side of the main frame (231). The N pole of the permanent magnet (232) is located at the top and the S pole is located at the bottom, and is used to stabilize the position of the core (271) by magnetic force after the valve is opened.

7. A bistable self-holding fire-fighting solenoid valve according to claim 4, characterized in that: The rear acceleration tube (34) comprises a rear tube body (341), the back side of the rear tube body (341) being connected to the circular blind hole at the top of the valve body (11) for enabling the entry of a fire extinguishing medium, the rear tube body (341) being fixedly connected to a rear spoiler (342) for accelerating the fire extinguishing medium, the rear spoiler (342) being provided in four numbers and being evenly distributed inside the rear tube body (341) about the central axis of the rear tube body (341), the main tube (32) comprising a tube body (321), the back side of the tube body (321) being connected to the front side of the rear tube body (341), the back side of the tube body (321) being fixedly connected to the rear side of the rear tube body (341), and the rear side of the tube body (321) being fixedly connected to the rear side of the rear tube body (341). A cross bracket (322) is fixedly connected thereto. The front of the cross bracket (322) is connected to a circular through hole for limiting the position of the eccentric blade (33). The right side of the main body tube (32) is connected to a front acceleration tube (31). The front acceleration tube (31) comprises a front tube body (311). The left side of the front tube body (311) is connected to the right side of the tube body (321). A front spoiler (312) is fixedly connected to the interior of the front tube body (311). The number of the front spoilers (312) is four and they are evenly distributed about the central axis of the front tube body (311) for accelerating the fire extinguishing medium entering the valve.

8. The bistable self-holding fire-fighting solenoid valve according to claim 7, characterized in that: The eccentric blade (33) comprises a power motor (331), the power motor (331) is fixedly connected to the front of the tube body (321) and is used to provide power. The power motor (331) is electrically connected to an external power supply line via a wire. The back of the power motor (331) is fixedly connected to a metal round rod via a motor shaft. The back of the power motor (331) is fixedly connected to a long curved blade (332) via a metal round rod. The long curved blade (332) is located at the top of the metal round rod. The back of the power motor (331) is fixedly connected to a short curved blade (333) via a metal round rod. The front cross-sections of the long curved blade (332) and the short curved blade (333) are both curved surfaces. The distance between the end point of the long curved blade (332) and the metal round rod is greater than the distance between the end point of the short curved blade (333) and the metal round rod, so as to achieve eccentricity and generate vibration during rotation. The back of the metal round rod is rotatably connected to the circular through hole of the cross bracket (322).

9. A bistable self-holding fire-fighting solenoid valve according to claim 2, characterized in that: The vibration clearing mechanism (4) comprises a motor bracket (41), the motor bracket (41) being fixedly connected to the top of the valve body (11), the motor bracket (41) being located on the right side of the valve box (2), a vibration motor (42) being fixedly connected to the top of the motor bracket (41), the vibration motor (42) being electrically connected to an external power supply line via a wire, an eccentric trigger wheel (43) being fixedly connected to the left side of the vibration motor (42) via a motor shaft, and a striking rod (44) being slidably connected to the inside of the circular blind hole at the top of the lubricating copper sleeve (14) for striking the lubricating copper sleeve (14) under the squeezing action of the eccentric trigger wheel (43) to generate vibration.

10. A bistable self-holding fire-fighting solenoid valve according to claim 9, characterized in that: The impact rod (44) is located at the bottom of the eccentric trigger wheel (43), and the impact rod (44) comprises a rod body (441). A contact plate (442) is fixedly connected to the top of the rod body (441) for achieving contact with the eccentric trigger wheel (43). The top of the contact plate (442) is covered with a rubber layer for reducing wear. A limit plate (443) is fixedly connected to the surface of the rod body (441). The limit plate (443) is located at the bottom of the contact plate (442). The bottom of the limit plate (443) is fixedly connected to the valve body (11) via a spring. A rubber impact head (444) is fixedly connected to the bottom of the rod body (441). The surface of the rubber impact head (444) is covered with a rubber layer for impacting the lubricating copper sleeve (14) to generate vibration under the drive of the rod body (441).

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