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 present invention relates to the technical field of valves, in particular to a self-holding fire-fighting electromagnetic valve with 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 aerosols and other fire extinguishing media.

[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 this self-holding firefighting solenoid valve with a manual release mechanism can be affected by various factors if not used for a long time, leading to valve failure and thus compromising the reliability of the solenoid valve at critical moments. In particular, since aerosols are dispersed systems consisting of solid or liquid particles stably suspended in a gaseous medium, after being discharged by the aerosol fire extinguishing device, the aerosol particles produced can adhere to the surfaces of the solenoid valve's internal components, making them difficult to clean and gradually clogging the valve, thus affecting the reliability of the solenoid valve during long-term or secondary use. Therefore, improvements are needed. 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 bistable self-holding fire solenoid valve, comprising a valve body, the valve body comprising a valve body, a circular blind hole being opened on the right side of the valve body, a valve box being connected to the top of the valve body, the bottom of the valve box being connected to the blind hole on the right side of the valve body, a flow disturbance acceleration mechanism being connected to the front side of the valve body, the flow disturbance acceleration mechanism being connected to the blind hole on the right side of the valve body, and a vibration clearing mechanism being fixedly connected to the top of the valve body;

[0007] The spoiler acceleration mechanism comprises:

[0008] A rear acceleration tube, the back of which is connected to the front of the valve body, for accelerating the fire extinguishing medium fluid as it enters the valve body;

[0009] 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;

[0010] The eccentric blade is fixedly connected to the front surface of the main body pipe and is used for stirring and dispersing the fire extinguishing medium to prevent the fire extinguishing medium from being blocked.

[0011] The present application provides a fire-fighting electromagnetic valve.

[0012] 1. The self-holding fire-fighting electromagnetic valve with bistable state, by setting the magnetic guide bracket, cooperating with the permanent magnet to realize the stable fixation of the movable iron core after opening, the stability of the valve in the open state is improved, by cooperating the movable iron core with the rotating scraper, the vertical unblocking is realized when the valve is opened and closed, the horizontal unblocking is realized when the fire extinguishing medium flows into the valve, the valve blocking caused by the channel blocking is prevented, and the reliability of the valve is improved.

[0013] 2. The self-holding fire-fighting electromagnetic valve with bistable state, by setting the lubricating copper sleeve, cooperating with the one-way valve head, the lubrication when the one-way valve head slides is realized, the valve blocking caused by the one-way valve head sticking is prevented, the reliability of the valve in the open and closed state is improved, by cooperating the lubricating copper sleeve with the vibration unblocking mechanism, the vibration is transmitted to the lubricating copper sleeve, and then the loosening of the lubricating copper sleeve and the one-way head is realized, the valve blocking caused by the one-way valve head sticking is prevented.

[0014] 3. The self-holding fire-fighting electromagnetic valve with bistable state, by setting the turbulence accelerating mechanism, the fire extinguishing medium entering the valve is stirred by the eccentric blade, the valve blocking caused by the agglomeration of the fire extinguishing medium is prevented, and the reliability of the valve in the open and closed state is improved, at the same time, the vibration generated by the rotation of the eccentric blade can prevent the agglomeration of the fire extinguishing medium in the pipe body, and the valve blocking of the turbulence accelerating mechanism is prevented, and the reliability of the valve is further improved.

[0015] 4. The self-holding fire-fighting electromagnetic valve with bistable state, by setting the front and rear two-stage accelerating pipe mechanism, the fire extinguishing medium entering the turbulence accelerating mechanism and the valve body is accelerated and dispersed, the flow speed of the fire extinguishing medium is improved to a certain extent, the valve blocking caused by the agglomeration of the fire extinguishing medium is prevented, and the reliability of the valve is improved, by cooperating the accelerating pipe mechanism with the eccentric blade mechanism, the dispersing effect of the fire extinguishing medium is improved, and the reliability of the valve is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a front overall structure schematic view of the present application;

[0017] Figure 2 It is a back overall structure schematic view of the present application;

[0018] Figure 3 It is a right side sectional view of the valve body and the valve box position relationship of the present application;

[0019] Figure 4 is a schematic view of the structure at B in the present application; Figure 3

[0020] Figure 5 is a schematic view of the relationship between the movable iron core and the sealing head in the present application;

[0021] Figure 6 is a back view of the relationship between the magnetic isolation sleeve ring and the magnetic isolation tube body in the present application;

[0022] Figure 7 is a schematic view of the bottom of the overall structure of the magnetic isolation sleeve ring in the present application;

[0023] Figure 8 is a back view of the relationship between the valve body and the valve box in the present application;

[0024] Figure 9 is a schematic view of the overall structure of the magnetic guide support in the present application;

[0025] Figure 10 is a sectional view of the internal structure of the front acceleration tube in the present application;

[0026] Figure 11 is a sectional view of the internal structure of the main tube in the present application;

[0027] Figure 12 is a schematic view of the overall structure of the eccentric blade in the present application;

[0028] Figure 13 is a schematic view of the structure at A in the present application; Figure 1

[0029] is a schematic view of the structure at C in the present application. Figure 14 Figure 8

[0030] ​​​In the figure: 1, valve body; 11, valve body; 12, cover plate; 13, and connecting port; 14, lubricating copper sleeve; 15, one-way valve head; 17, spray head; 2, valve box; 21, magnetic isolation tube seat; 211, magnetic isolation tube body; 212, magnetic isolation sleeve ring; 22, valve shell; 221, shell; 222, joint cover; 23, magnetic guide bracket; 231, main frame; 232, permanent magnet; 24, coil tube; 25, magnetic guide plate; 26, fixed core; 27, movable core; 271, core body; 272, rotating scraper; 28, sealing head; 3, turbulence acceleration mechanism; 31, front acceleration tube; 311, front tube body; 312, front turbulence plate; 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 turbulence plate; 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 disc; 444, rubber impact head. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments of the present application.

[0032] Examples of the described embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0033] Embodiment one: please refer to Figures 1-9The application provides a technical scheme: a self-holding fire-fighting electromagnetic valve with bistability, which comprises a valve body 1, the valve body 1 comprises a valve body 11, a circular blind hole is formed in the right side of the valve body 11, a circular blind hole is formed in the top of the valve body 11, a circular hole is formed in the bottom of the circular blind hole of the valve body 11 and communicates with the right side blind hole of the valve body 11, the circular hole is located on the left side of the right side blind hole 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 through bolts, a connecting port 13 is connected to the back of the valve body 11 and is used for connecting other pipelines and electromagnetic valves, the connecting port 13 communicates with the circular blind hole in the top of the valve body 11, a lubricating copper sleeve 14 is fixedly connected to the inside of the right side blind hole of the valve body 11, the lubricating copper sleeve 14 is made of copper, graphite material is embedded on the inner surface of the lubricating copper sleeve 14, a one-way valve head 15 is slidably connected to the inside of the lubricating copper sleeve 14, the lubricating copper sleeve 14 is used for lubricating the sliding process of the one-way valve head 15, circular through holes are formed in the left and right sides of the one-way valve head 15, a spray head 17 is fixedly connected to the inside of the right side blind hole of the valve body 11 and is located on the left side of the cover plate 12, a rubber pad is fixedly connected between the spray head 17 and the cover plate 12, there are two circular blind holes in the top of the valve body 11, and the other one is located in the top of the lubricating copper sleeve 14.

[0034] A valve box 2 is connected to the top of the valve body 11, the bottom of the valve box 2 communicates with the right side blind hole of the valve body 11, the valve box 2 comprises a magnetic isolation pipe base 21, which is used for preventing the magnetic isolation pipe base 21 from being completely adsorbed with the iron core and affecting the movement of the iron core, the magnetic isolation pipe base 21 comprises a magnetic isolation pipe body 211, the bottom of the magnetic isolation pipe body 211 communicates with the blind hole in the top of the valve body 11, an O-shaped sealing ring is sleeved between the bottom of the magnetic isolation pipe body 211 and the blind hole in the top of the valve body 11, a circular pipe is fixedly connected to the top of the magnetic isolation pipe body 211, a valve shell 22 is fixedly connected to the top of the magnetic isolation pipe body 211, a magnetic isolation sleeve ring 212 is fixedly connected to the bottom of the magnetic isolation pipe body 211, which is used for preventing the movable iron core 27 from being directly adsorbed on the inner wall of the blind hole in the top of the valve body 11, the valve shell 22 comprises a shell body 221, the bottom of the shell body 221 is fixedly connected to the top of the magnetic isolation pipe body 211, the bottom of the shell body 221 is sleeved with the circular pipe in the top of the magnetic isolation pipe body 211, a connector cover 222 is connected to the front of the shell body 221, a fixed iron core 26 is fixedly connected to the top of the circular pipe of the shell body 221, a magnetic guide plate 25 is fixedly connected to the top of the fixed iron core 26 through screws, which is used for transmitting magnetism to the fixed iron core 26, the magnetic guide plate 25 is inserted into the top of the shell body 221, a coil pipe 24 is sleeved on the surface of the circular pipe of the shell body 221, the coil pipe 24 comprises a plug, the plug is inserted into the inside of the connector cover 222, two plug pins are connected to the front of the plug, which are used for connecting external power supply lines to generate electromagnetic force;

[0035] The top of the shell 221 is slidably connected with a movable core 27 inside the round pipe, the movable core 27 comprises a core body 271, the surface of the core body 271 is slidably connected with the round pipe of the shell 221, and the core body 271 is used for being subjected to electromagnetic force to realize opening and closing of the valve; the bottom of the core body 271 is connected with a sealing head 28 through a cylindrical rod, the bottom of the sealing head 28 is rotatably connected with a rotating scraper 272, the rotating scraper 272 is rotatably connected with the cylindrical rod of the bottom of the core body 271, the rotating scraper 272 is located in the circular hole at the bottom of the circular blind hole of the valve body 11, and the rotating scraper 272 is used for being driven by the core body 271 to slide up and down in the circular hole at the bottom of the blind hole of the valve body 11, so as to dredge the extinguishing medium remaining in the circular hole, and prevent the extinguishing medium from blocking the valve body 11; the top of the core body 271 is fixedly connected with the fixed core 26 through a spring, and an O-shaped sealing ring is sleeved between the core body 271 and the magnetic shielding ring 212;

[0036] The bottom of the inner wall of the shell 221 is fixedly connected with a magnetic conduction support 23, the magnetic conduction support 23 comprises a main support 231, the bottom of the main support 231 is connected with the round pipe of the shell 221, the number of the main supports 231 is two, and the other is located at the top of the inside of the shell 221 and is symmetrically distributed inside the shell 221, and the left side gap of the main support 231 is fixedly connected with a permanent magnet 232, the N pole of the permanent magnet 232 is located above, and the S pole is located below, and the permanent magnet 232 is used for stably fixing the position of the core body 271 through magnetic force after the valve is opened;

[0037] The valve body 11 is communicated with a turbulent flow acceleration mechanism 3 on the front side, the turbulent flow acceleration mechanism 3 is communicated with the 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 unblocking mechanism 4.

[0038] In use, when a fire occurs in the area where the electromagnetic valve is located, the fire extinguishing system transmits current to the electromagnetic valve through a wire, and the valve box 2, the turbulent flow acceleration mechanism 3 and the vibration unblocking mechanism 4 are started at this time; the coil pipe 24 receives the current to generate upward electromagnetic force, the electromagnetic force of the permanent magnet 232 is transmitted to the magnetic conduction plate 25 through the main support 231, and then transmitted to the fixed core 26; the coil pipe 24, the permanent magnet 232 and the fixed core 26 together attract the core body 271, the core body 271 moves upward under the action of the electromagnetic force and simultaneously extrudes the spring, until the core body 271 is attracted to the bottom of the fixed core 26, the core body 271 drives the sealing head 28 to move upward, and the sealing head 28 is removed from the blind hole at the top of the valve body 11, extinguishing medium enters the device through the turbulent flow acceleration mechanism 3, part of the extinguishing medium enters other electromagnetic valves through the connecting port 13, and the other part of the extinguishing medium enters the blind hole on the right side of the valve body 11 from the circular through hole at the bottom of the sealing head 28; after the extinguishing medium enters the blind hole on the right side of the valve body 11, the one-way valve head 15 is pushed to slide along the inside of the lubricating copper sleeve 14 until the one-way valve head 15 leaks out of the through hole, the extinguishing medium enters the inside of the lubricating copper sleeve 14 from the through hole, is sprayed in a spray state through the spray head 17, and is sprayed on the fire position to complete fire extinguishing;

[0039] After adsorption is completed, the fire extinguishing system stops supplying power to the coil pipe 24, the core body 271 is maintained in the open position under the magnetic force adsorption of the permanent magnet 232, and the fire extinguishing medium entering the valve body 11 extrudes the sealing head 28 upwards, thereby lifting the core body 271 and further stabilizing the opening of the core body 271. When the fire extinguishing needs to be closed, the fire extinguishing system passes reverse current to the coil pipe 24 through the wire, and simultaneously closes the turbulence acceleration mechanism 3 and the vibration unblocking mechanism 4. The coil pipe 24 generates a reverse electromagnetic force acting on the core body 271, and the core body 271 is adsorbed and reset under the electromagnetic force away from the fixed iron core 26. The sealing head 28 re-seals the circular blind hole in the valve body 11, thereby realizing valve closure.

[0040] During the opening process of the core body 271, the movable iron core 27 slides upwards under the electromagnetic force, and during the closing process of the core body 271, the movable iron core 27 slides downwards under the electromagnetic force. During the upward or downward sliding of the movable iron core 27, the rotating scraper 272 is driven by the core body 271 to vertically scrape 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 be adhered inside the hole, and simultaneously dredging the fire extinguishing medium retained in the circular hole to prevent the fire extinguishing medium from blocking the valve body 11. During the process of the fire extinguishing medium flowing 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 enabling the rotating scraper 272 to scrape and clean the fire extinguishing medium adhered to the inner wall of the circular hole in the horizontal direction.

[0041] Example two: please refer to Figures 1-12 On the basis of example one, the present application provides a technical solution: the turbulence acceleration mechanism 3 comprises:

[0042] The front acceleration pipe 31 is connected to the right side of the main pipe 32, and the front acceleration pipe 31 comprises a front pipe body 311. The left side of the front pipe body 311 is connected to the right side of the pipe body 321, and the inner wall thereof is tapered along the medium flow direction. The outlet diameter is 20%-25% smaller than the inlet diameter, forming a Venturi effect to convert static pressure into dynamic pressure. The front pipe body 311 is fixedly connected with four front turbulence plates 312 which are uniformly distributed about the central axis of the front pipe body 311, for realizing the flow guiding and acceleration of the fire extinguishing medium entering the valve.

[0043] The main pipe 32 is connected to the front of the rear acceleration pipe 34 at the back, for limiting the flow direction of the fire extinguishing medium. The main pipe 32 comprises a pipe body 321, and the inner diameter of the pipe body 321 is flush with the outlet of the front pipe body 311, so as to ensure that the high flow rate obtained after pressure drop is maintained. The back of the pipe body 321 is connected to the front of the rear pipe body 341, and the back of the pipe body 321 is fixedly connected with a cross bracket 322. The front of the cross bracket 322 is connected with a circular through hole, for limiting the position of the eccentric blade 33.

[0044] eccentric blade 33 is fixedly connected to the front of the main tube 32, used for stirring and dispersing the fire extinguishing medium, preventing the fire extinguishing medium from being blocked, the eccentric blade 33 includes a power motor 331 fixedly connected to the front of the tube body 321, used for providing power, the power motor 331 is electrically connected to the external power supply line through wires, and the back of the power motor 331 is fixedly connected with a metal round rod through a motor shaft, the back of the power motor 331 is fixedly connected with a long curved blade 332 through the 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 with a short curved blade 333 through the metal round rod, the front cross section of the long curved blade 332 and the short curved blade 333 is a curved surface, 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, used to realize eccentric rotation, and further generate vibration in the rotation process, and the back of the metal round rod is rotatably connected to the circular through hole of the cross bracket 322. Specifically, the eccentric blade 33 is driven by the power motor 331 to generate pulsating vortex in the 8000-10000 rpm interval, the long and short curved blades 332, 333 alternately sweep through the transmission medium under the eccentric trajectory, realize blade vortex shear, destroy the agglomeration of aerosol medium generated in the transmission process, and further reduce the apparent viscosity of the medium.

[0045] The rear acceleration pipe 34 is in communication with the front of the valve body 11, used for accelerating the fire extinguishing medium fluid entering the valve body 1, the rear acceleration pipe 34 includes a rear pipe body 341, the back of the rear pipe body 341 is in communication with the top circular blind hole of the valve body 11, used for realizing the entry of the fire extinguishing medium, and the rear pipe body 341 is fixedly connected with a rear spoiler 342 inside, used for accelerating the fire extinguishing medium. The inner wall of the rear pipe body 341 adopts a "converging-diverging" combined structure: that is, the front 2 / 3 segment of the inner wall of the rear pipe body 341 continues to converge (convergence angle 5°±0.5°) towards the main tube 32 direction until the minimum throat diameter, and the rear 1 / 3 segment is slightly divergent (angle ≤4°). The medium is accelerated through the rear acceleration pipe 34, the flow rate of the medium entering the valve body 11 is increased, ensuring that the high kinetic energy of the fire extinguishing medium rushes into the valve body 11, reducing the probability of blockage. At the same time, part of the static pressure is recovered in the diffusion section, and the overall pressure loss is reduced. The number of rear spoilers 342 is four and is uniformly distributed in the converging section about the center axis of the rear pipe body 341.

[0046] In use, after the valve is started, the power motor 331 is started, the power motor 331 drives the long curved blade 332 and the short curved blade 333 to rotate, and vibration is generated at the same time. The fire extinguishing medium enters the main body pipe 32 through the front pipe body 311. In the process of entering the front acceleration pipe 31, the fire extinguishing medium is accelerated under the reaction force of the front pipe body 311 after passing through the front pipe body 311, and enters the main body pipe 32 at a high speed. The fire extinguishing medium entering the main body pipe 32 is scattered by the long curved blade 332 and the short curved blade 333, thereby preventing the clogging caused by the agglomeration of the fire extinguishing medium. The scattered fire extinguishing medium enters the rear pipe body 341, is accelerated by the rear spoiler 342, and enters the valve body 11 at a high speed.

[0047] In the scattering process, the vibration generated by the rotation of the eccentric blade 33 is transmitted to the fire extinguishing medium in contact with the eccentric blade 33, promoting the loosening of the fire extinguishing medium. At the same time, the vibration is transmitted to the surface of the pipe body 321 through the metal round rod, promoting the loosening of the fire extinguishing medium adhered to the inner surface of the pipe body 321.

[0048] Example three: please refer to Figures 1-14 On the basis of example one and example two, the application provides a technical solution: the vibration unblocking mechanism 4 includes a motor bracket 41 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, the motor bracket 41 is fixedly connected with a vibration motor 42 at the top, the vibration motor 42 is electrically connected with the external power supply circuit through wires, the vibration motor 42 is fixedly connected with an eccentric trigger wheel 43 on the left side through a motor shaft, a copper lubricating sleeve 14 is slidably connected in the top circular blind hole, and a striking rod 44 is used to strike the copper lubricating sleeve 14 to generate vibration under the extrusion of the eccentric trigger wheel 43.

[0049] The striking rod 44 is located at the bottom of the eccentric trigger wheel 43, and the striking rod 44 includes a rod body 441, a contact plate 442 is fixedly connected to the top of the rod body 441, which is used to realize contact with the eccentric trigger wheel 43, a rubber layer is covered on the top of the contact plate 442, which is used to reduce wear, a limiting disc 443 is fixedly connected to the surface of the rod body 441, the limiting disc 443 is located at the bottom of the contact plate 442, the limiting disc 443 is fixedly connected to the valve body 11 through a spring at the bottom, a rubber striking head 444 is fixedly connected to the bottom of the rod body 441, and a rubber layer is covered on the surface of the rubber striking head 444, which is used to strike the copper lubricating sleeve 14 to generate vibration under the driving of the rod body 441.

[0050] In use, after the valve is opened, the vibration motor 42 is started under the control of the fire extinguishing system, the vibration motor 42 drives the eccentric trigger wheel 43 to rotate, the eccentric trigger wheel 43 rotates to periodically extrude the contact plate 442, the contact plate 442 is extruded to drive the rod body 441, the limiting disc 443 and the rubber impact head 444 to move downward, and at the same time, the spring is extruded, the rubber impact head 444 collides with the lubricating copper sleeve 14 to generate vibration, the adhesion of the fire extinguishing medium on the inner wall of the lubricating copper sleeve 14 is promoted to be separated, the vibration is transmitted to the one-way valve head 15, the loosening of the one-way valve head 15 and the lubricating copper sleeve 14 is promoted, and the loosening of the internal fire extinguishing medium is promoted through vibration.

[0051] The above merely describes the preferred embodiments of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacements or changes to the technical scheme and the inventive concept of the present application within the technical scope disclosed by the present application, and all of them should be covered within the protection scope of the present application.

Claims

1. A self-holding fire-fighting solenoid valve with bistable state, comprising a valve body (1), characterized in that: The valve body (1) comprises a valve body (11), a circular blind hole is provided 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 back of which is in communication with the front of the valve body (11), and is 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) is connected to the front side of the rear acceleration pipe (34), and is used to limit 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 for stirring and breaking up 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: A circular blind hole is provided on the top of the valve body (11), and a circular hole is provided at the bottom of the circular blind hole of the valve body (11) and is communicated with the blind hole on the right side 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 cover plate (12) is fixedly connected to the right side of the valve body (11) by bolts. A parallel connection port (13) is communicated with the circular blind hole on the top of the valve body (11). A lubricating copper sleeve (14) is fixedly connected inside the blind hole on the right side of the valve body (11). The lubricating copper sleeve (14) is made of copper, and 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). A nozzle (17) is fixedly connected inside 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 on 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 valve box (2) includes a magnetic isolation tube seat (21) for preventing the magnetic isolation tube seat (21) from being completely adsorbed with the iron core and affecting the activity of the iron core. The magnetic isolation tube seat (21) includes a magnetic isolation tube body (211). The bottom of the magnetic isolation tube body (211) is connected to the 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) includes a shell (221). The bottom of the shell (221) is connected to the magnetic isolation tube body (2 11) is fixedly connected at the top, the bottom of the shell (221) is sleeved with the top circular tube of the magnetic isolation tube body (211), the front of the shell (221) is connected with a joint cover (222), the top of the circular tube of the shell (221) is fixedly connected with a fixed iron core (26), the top of the fixed iron core (26) is fixedly connected with a magnetic plate (25) by screws, and is used to transmit magnetism to the fixed iron core (26), the magnetic plate (25) is plugged into the top of the shell (221), the surface of the circular tube of the shell (221) is sleeved with a coil tube (24), the coil tube (24) includes a pin, the pin is plugged into the inside of the joint cover (222), and the front of the pin is connected with two pins, which are used to connect to an external power supply line to generate electromagnetic force.

4. A bistable self-holding fire-fighting solenoid valve according to claim 3, 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) includes 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 realizing the opening and closing of the valve under the action of electromagnetic force. A sealing head (28) is plugged into 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) is rotatably connected to a cylindrical rod at the bottom of the core body (271). The rotating scraper (272) is located in a circular hole at the bottom of the circular blind hole of the valve body (11). The rotating scraper (272) is used to clear the circular hole driven by the core body (271) to prevent blockage. The top of the core body (271) is fixedly connected to the fixed iron core (26) through a spring. An O-ring is sleeved between the core body (271) and the magnetic isolation ring (212).

5. A bistable self-holding fire-fighting solenoid valve according to claim 4, 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) 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 inside 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.

6. The bistable self-holding fire-fighting solenoid valve according to claim 3, characterized in that: The rear acceleration tube (34) includes a rear tube body (341), the back of the rear tube body (341) is connected to the circular blind hole on the top of the valve body (11) for allowing the entry of the fire extinguishing medium, the rear tube body (341) is fixedly connected with a rear spoiler (342) for accelerating the fire extinguishing medium, the number of the rear spoilers (342) is four and they are evenly distributed inside the rear tube body (341) about the central axis of the rear tube body (341), the main 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), the back of the tube body (321) is fixedly connected to the rear spoiler (342) for accelerating the fire extinguishing medium, A cross bracket (322) is fixedly connected, and a circular through hole is communicated on the front of the cross bracket (322) for limiting the position of the eccentric blade (33). The right side of the main tube (32) is communicated with a front acceleration tube (31). The front acceleration tube (31) includes a front tube body (311). The left side of the front tube body (311) is communicated with the right side of the tube body (321). A front spoiler (312) is fixedly connected inside 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), and they are used to accelerate the fire extinguishing medium entering the valve.

7. The bistable self-holding fire-fighting solenoid valve according to claim 6, 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) for providing 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 the 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 the 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, and is used to achieve eccentricity, thereby generating vibration during rotation, and the back of the metal round rod is rotatably connected to the circular through hole of the cross bracket (322).

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