Fire-fighting sprayer and fire-fighting system

Abstract

The fire-fighting sprayer comprises an outer part and an inner part which are in interference fit, the outer part and the inner part are different in thermal expansion and cold contraction coefficient, the fire-fighting sprayer further comprises an active control part, the active control part controls the outer part and the inner part to expand with heat and contract with cold so that the outer part and the inner part can be separated, the outer part is axially downward, and the inner part is axially downward. And the stress balance of the fourth limiting piece is damaged, so that the fourth limiting piece moves inwards in the radial direction and / or downwards in the axial direction, the first limiting piece is downwards in the axial direction, and at least part of the blocking piece is separated from the communicating channel so that the fire sprinkler can be opened for spraying. The device is simple in structure, the fire-fighting nozzle has active and passive fire-fighting triggering modes, passive triggering can be achieved along with the increase of the environment temperature, and the fire-fighting nozzle can also be actively triggered through a PLC.

Description

Technical Field

[0001] The invention belongs to the technical field of fire protection systems, and in particular relates to a fire protection sprinkler and a fire protection system. Background Art

[0002] At present, the household fire protection system is mainly passively triggered, and the fire sprinkler needs the temperature-sensitive glass ball to break before the sprinkler can extinguish the fire. It has the following disadvantages: Based on the passive triggering of the temperature-sensitive glass ball, the fire protection system with this structure has a slow response to fire protection and a low safety factor. For example, the conventional fire sprinkler system is installed on the suspended ceiling, and the lower part of the sprinkler will be exposed outside the suspended ceiling. The rising indoor temperature will damage the temperature-sensitive glass ball to trigger the fire protection action, and the response time is slow. If the installation height of the fire sprinkler is lowered, it will affect the indoor layout and make it look abrupt and aesthetically pleasing. Therefore, it is very important to obtain a fire sprinkler and fire protection system with a fast triggering time and multiple triggering methods. Summary of the invention

[0003] In order to solve at least one of the above technical problems, on the one hand, the present invention provides a fire sprinkler and a fire fighting system, which solves the technical problem of too slow triggering time of the sprinkler in the prior art; the technical effect of shortening the triggering time of the sprinkler is achieved, and the fire fighting system can be associated with civil water pipes to reduce installation costs and internal home usage space.

[0004] A fire sprinkler comprises a communication channel connected to a fire pipe, and a valve assembly cooperated with the communication channel to control the opening and closing thereof, wherein the valve assembly comprises a valve seat and a valve core assembly, wherein the valve core assembly is at least partially disposed in the valve seat and cooperates with the communication channel to seal or separate to realize the opening and closing of the fire sprinkler.

[0005] The valve core assembly includes a blocking member for cooperating with the communication channel and an action assembly for controlling the action of the blocking member;

[0006] The action assembly includes a first limiter, a second limiter assembly, a third limiter, a fourth limiter, and a first fixing member, wherein the first fixing member connects the first limiter, the fourth limiter, and the second limiter assembly; a valve cavity is formed in the valve seat, the third limiter is arranged on the side wall of the valve cavity, and the second limiter acts on the fourth limiter to make the fourth limiter be in an outer position;

[0007] The third limiting member and the second limiting assembly support the fourth limiting member, and the first limiting member is placed on the fourth limiting member and at least partially contacts the fourth limiting member, so that the fourth limiting member is located between the first limiting member, the second limiting assembly and the third limiting member and maintains a force balance to cause the blocking member to contact the communication channel to close it;

[0008] The second limiting component includes an outer part and an inner part with interference fit, and the thermal expansion and contraction coefficients of the outer part and the inner part are different. It also includes an active control part, and the active control part controls the thermal expansion and contraction of the outer part and the inner part to separate the outer part and the inner part, and the outer part moves axially downward, thereby destroying the force balance of the fourth limiting part, so that the fourth limiting part moves radially inward and / or axially downward, so that the first limiting part moves axially downward, and the blocking part at least partially detaches from the connecting channel to allow the fire sprinkler to open for spraying.

[0009] It also includes a passive control component, which includes a second fixing part and a hot-melt metal part. The first fixing part passes through the first limiting part and the inner part and is connected to the second fixing part to axially limit the first limiting part and the second limiting component. The hot-melt metal part is in contact between the inner part and the second fixing part.

[0010] Preferably, the first limit member and / or the outer member is provided with a guide groove for moving the fourth limit member, and the guide groove extends radially inward and is concave upward or downward, so that the fourth limit member can move radially along the guide groove; the third limit member is formed by the boss circumferentially arranged at the lower port of the valve seat, and the inner side wall of the boss forms an inclined surface or a curved surface; the first limit member and / or the inner member is provided with a limiting portion cooperating with the fourth limit member, and the limiting portion is an inclined surface or a curved surface.

[0011] Through the above technical solution, the fire sprinkler provided by the present invention can not only perform active spraying through the active control component, but also be passively opened in case of fire, and has two control modes.

[0012] On the other hand, the present invention provides a fire protection system, comprising at least one sprinkler, at least one of which is the fire protection sprinkler described above, and further comprising a diversion mechanism, wherein the diversion mechanism comprises:

[0013] The first connecting port is connected to civil water;

[0014] The second connecting port forms a civil water outlet;

[0015] A third communication port connected to a fire fighting pipe; the first communication port and the second communication port form a first communication channel, and the first communication port and the third communication port form a second communication channel;

[0016] The flow-dividing mechanism further includes a control component for controlling whether the first communication channel and the second communication channel of the flow-dividing mechanism are connected;

[0017] It also includes a controller, which controls the operation of the control component and the active control component of the fire sprinkler, controls the overall action of the fire protection system, and the actual conditions and active triggering control of each component.

[0018] There are multiple modes of the control assembly, one of which is: the control assembly includes a diverter valve assembly, the diverter valve assembly includes a valve base and a valve core assembly arranged in the valve base, the first communication port, the second communication port and the third communication port are opened on the valve base;

[0019] The valve base is provided with a first channel, a second channel, a third channel and a fourth channel in sequence. The valve core assembly includes a movable diverter body and a movable part movably connected to the movable diverter body. An elastic part is arranged between the movable part and the movable diverter body to control the length of the valve core assembly. A water outlet is arranged on the movable diverter body. One end of the movable diverter body cooperates with the first channel or the second channel, and the other end cooperates with the third channel. The movable part is provided with a blocking part that cooperates with the third channel or the fourth channel. A valve body sealing sleeve is fixed on the third channel, and a third sealing ring is arranged between the valve body sealing sleeve and the inner wall of the third channel. A second sealing ring is installed on the inner wall of the second channel, and a first sealing ring is installed on the outer periphery of one end of the movable diverter body. An annular groove is arranged at the third channel, and a spring sheet is clamped in the annular groove. The spring sheet limits the valve body sealing sleeve, and a fourth sealing ring is installed on the inner wall of the fourth channel.

[0020] The movable body comprises an inner movable cover and a valve body cover fixed to the inner movable cover. The elastic member is a spring.

[0021] Among them, the diverter valve has two working states: 1. When the fire protection system is used, civil water passes through the first connecting channel and is used as civil tap water; 2. When the fire protection system is triggered, the water pump starts to boost pressurized water through the second connecting channel and enters the fire protection pipe, and fire extinguishing is carried out at the sprinkler head.

[0022] The first connecting port is connected to a water pump through a water pipe, the second connecting port is connected to a faucet, and the third connecting port is connected to a fire-fighting pipe and is connected to an air pump. The water pump is pressurized to make one end of the movable diverter cooperate with the second channel, so that civilian water passes through the water port and the second connecting channel into the fire-fighting pipe; the air pump works to push the blocking part of the movable part against the third channel, so that civilian water passes through the water port and the first connecting channel into the faucet. Faucet: The use of civilian water in the fire-fighting system. When the fire-fighting system is not triggered, the air pump works to hold up the movable diverter. When the fire-fighting system is triggered, the air pump stops working and water is used for fire-fighting.

[0023] Preferably, a one-way valve is arranged on the pipeline between the air pump and the third connecting port to control the fire fighting system to stop water flow after the fire extinguishing is completed.

[0024] Through the above technical solution, the water pump controls the pressure of civil water and fire water, and transports water and ensures the storage of gas in the water pipe; the water pipe can be connected to the pressure gauge, diverter valve, nozzle and the above fire sprinkler through the water pipe connector. The pressure gauge can monitor the water pressure and air pressure in the water pipe in real time, and perform real-time fire triggering actions according to the pressure in the water pipe.

[0025] Second, the control component includes a second electrically controlled valve at the second connecting port of the control diversion mechanism and a third electrically controlled valve at the third connecting port of the control diversion mechanism.

[0026] The diversion mechanism further includes a water tank, and the first communication port, the second communication port and the third communication port are opened on the water tank.

[0027] The nozzle also includes a first nozzle and / or a second nozzle, and the active control component includes a copper sleeve, a spherical coil, or an infrared light source configured at the thermal variable component of the nozzle. The copper sleeve, the spherical coil, or the infrared light source can be fixed on the fire water pipe through a bracket and electrically connected to the output end of the controller through a wire.

[0028] There are many types of nozzles, one of which is: the first nozzle is an existing nozzle structure, which is similar to the above-mentioned fire sprinkler structure, except that the inner and outer parts of the first nozzle are integrally formed. Other structures are the same. The active control part is arranged on the periphery of the hot-melt metal part of the first nozzle.

[0029] In a fire sprinkler, the active control member may be disposed away from the hot-melt metal member thereof.

[0030] First, the second nozzle includes a seat body, a water outlet channel connected to a fire fighting pipe is provided on the seat body, and a plug is arranged at the water outlet channel, two limit rods are fixed on the seat body, one of the limit rods is provided with a limit slot, and the other limit rod is provided with a shelf slot, and also includes a transverse control rod and a longitudinal control rod pivotally connected to the transverse control rod, the transverse control rod is provided with a conflicting portion that conflicts with the plug, the end of the longitudinal control rod at least partially extends above the limit slot, and the extending portion is provided with a first guiding inclined surface, the transverse control rod is provided with a second guiding inclined surface at the matching position with the shelf slot, and a thermal variable component is installed between the other limit rod and the conflicting plug to balance the force of the second nozzle, and when the thermal variable component is heated, the force balance is destroyed, so that the plug is separated from the water outlet channel. A nut is arranged at the limit rod to adapt and adjust the thermal variable component.

[0031] In the first nozzle and the fire sprinkler, the thermally variable component is a hot-melt metal component, and in the second nozzle it is a hot-melt glass component.

[0032] Also included are smoke alarms and / or cameras connected to the controller.

[0033] Compared with the prior art, the advantages of the present invention are: the present invention has a simple structure, and the fire sprinkler has two fire-fighting triggering modes, active and passive. The fire sprinkler can be passively triggered as the ambient temperature increases, or actively triggered by PLC. The present invention adds active heating means to the fire sprinkler, and designs a control system matching it based on this. The active control component uses the heat collecting plate to collect the temperature of the heating plate, dissolves the fusible metal, or separates the internal and external parts due to different thermal expansion and contraction rates, so that the fire sprinkler enters the triggering state, and the PLC controller collects information on the triggering of the fire sprinkler.

[0034] In order to ensure the simultaneous use of civil water and fire water. When the fire sprinkler is not triggered, the air pump supplies air to seal the movable diverter. The water pump does not work, and civil water enters the civil water pipe to ensure the domestic water supply. When the fire sprinkler is triggered, the air pump cuts off the air to separate the movable diverter, and the water pump works. After the civil water is pressurized, it enters the fire water pipe to ensure the fire water supply.

[0035] The PLC controller monitors the information throughout the entire process, including the air pump inflating the fire pipe in the early stage, manual heating of the heating plate, collection of information on whether the fire sprinkler is triggered, and real-time monitoring of the water pressure of the fire pipe and the civil water pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 The cross section of the fire sprinkler of the present invention is shown in FIG. Figure 1 ;

[0037] Figure 2 The cross section of the fire sprinkler of the present invention is shown in FIG. Figure 2 ;

[0038] Figure 3 This is the first implementation mode of the system of the present invention;

[0039] Figure 4 This is the second implementation mode of the system of the present invention;

[0040] Figure 5 This is the third implementation mode of the system of the present invention;

[0041] Figure 6 The structure of one embodiment of the diverter valve assembly of the present invention is schematically shown in FIG. Figure 1 ;

[0042] Figure 7 The structure of one embodiment of the diverter valve assembly of the present invention is schematically shown in FIG. Figure 2 ;

[0043] Figure 8 A cross-sectional perspective view of an embodiment of a diverter valve assembly of the present invention;

[0044] Fig. 9This is a three-dimensional diagram of the second nozzle structure of the present invention;

[0045] Fig.10 It is a schematic cross-sectional view of the second nozzle structure of the present invention;

[0046] Reference numerals:

[0047] 1 fire fighting pipeline; 101 connecting passage;

[0048] 2 valve assembly; 201 valve seat; 202 action assembly; 203 first stopper, 204 second stopper assembly; 2041 outer member; 2042 inner member; 205 third stopper; 206 fourth stopper; 207 first fixing member; 208 active control member; 209 passive control assembly; 2091 second fixing member; 2092 hot melt metal member; 210 guide groove; 211 stopper; 2012 heat collecting sheet; 2013 female terminal; 2014 blocking member;

[0049] 301 fire sprinkler; 302 first sprinkler; 303 second sprinkler; 304 first connecting port; 305 second connecting port; 306 third connecting port; 308 faucet; 309 controller; 310 smoke alarm; 311 camera;

[0050] 401 valve base; 4011 first channel, 4012 second channel; 40121 second sealing ring, 4013 third channel; 40131 valve body sealing sleeve; 40132 third sealing ring; 40133 ring groove; 40134 spring sheet; 4014 fourth channel 40141 fourth sealing ring; 4021 movable diverter; 40211 water outlet; 40212 first sealing ring; 4022 movable part; 40221 blocking part; 4023 elastic part;

[0051] 5 water pump; 6 air pump; 7 one-way valve; 8 pressure gauge; 11 water tank; 12 infrared light source;

[0052] 901 second electrically controlled valve; 902 third electrically controlled valve;

[0053] 1001 seat body; 1002 water outlet channel; 1003 plug; 1004 limit rod; 1005 limit groove; 1006 shelf groove; 1007 transverse control rod; 1008 longitudinal control rod; 1009 resistance part; 1010 extending part; 1011 first guide inclined surface; 1012 second guide inclined surface; 1013 thermal change part; 1014 nut. DETAILED DESCRIPTION

[0054] In order to enable those skilled in the art to better understand the present invention, and thus to more clearly define the scope of the protection claimed in the present invention, the present invention is described in detail with respect to certain specific embodiments of the present invention. It should be noted that the following are only certain specific implementations of the present invention, which are only some embodiments of the present invention, wherein the specific and direct description of the relevant structures is only for the convenience of understanding the present invention, and each specific feature does not naturally and directly limit the scope of implementation of the present invention.

[0055] Referring to the accompanying drawings, on the one hand, the present invention provides a fire sprinkler 301 and a fire protection system, which solve the technical problem of too slow triggering time of the sprinkler in the prior art; the technical effect of shortening the triggering time of the sprinkler is achieved, and the fire protection system can be associated with civil water pipes to reduce installation costs and internal household usage space.

[0056] A fire sprinkler 301 includes a communication channel 101 connected to a fire pipe 1, and a valve assembly 2 that cooperates with the communication channel 101 to control the opening and closing thereof. The valve assembly 2 includes a valve seat 201 and a valve core assembly. The valve core assembly is at least partially disposed in the valve seat 201 and cooperates with the communication channel 101 to block or separate to realize the opening and closing of the fire sprinkler 301.

[0057] The valve core assembly includes a blocking member 2014 for cooperating with the communication channel 101 and an action assembly 202 for controlling the action of the blocking member 2014;

[0058] The action assembly 202 includes a first limiter 203, a second limiter assembly 204, a third limiter 205, a fourth limiter 206, and a first fixing member 207, wherein the first fixing member 207 connects the first limiter 203, the fourth limiter 206, and the second limiter assembly 204; a valve cavity is formed in the valve seat 201, the third limiter 205 is arranged on the side wall of the valve cavity, and the second limiter acts on the fourth limiter 206 to make the fourth limiter 206 in an outer position;

[0059] The third limiting member 205 and the second limiting member 204 support the fourth limiting member 206, and the first limiting member 203 is placed on the fourth limiting member 206 and at least partially contacts the fourth limiting member 206, so that the fourth limiting member 206 is located between the first limiting member 203, the second limiting member 204 and the third limiting member 205 and maintains a force balance to make the blocking member 2014 contact the connecting channel 101 to close it;

[0060] The second limiting component 204 includes an outer part 2041 and an inner part 2042 with interference fit, and the thermal expansion and contraction coefficients of the outer part 2041 and the inner part 2042 are different. It also includes an active control part 208, and the active control part 208 controls the thermal expansion and contraction of the outer part 2041 and the inner part 2042 to separate the outer part 2041 and the inner part 2042. The outer part 2041 moves axially downward to destroy the force balance of the fourth limiting part 206, so that the fourth limiting part 206 moves radially inward and / or axially downward, so that the first limiting part 203 moves axially downward, and the blocking part 2014 is at least partially separated from the connecting channel 101 to allow the fire sprinkler 301 to open for spraying.

[0061] Since the outer diameter and inner diameter of a closed annular body increase after heating, the object expands outward when heated, and the increase in the inner diameter is a stress effect. For example, the outer part is made of aluminum and the inner part is made of stainless steel. The two are interference fit at room temperature. Since the melting points of these two materials are different, when the outer part and the inner part are heated, the outer part expands and contracts first, and then falls off to control the spraying.

[0062] It also includes a passive control component 209, which includes a second fixing member 2091 and a hot-melt metal member 2092. The first fixing member 207 passes through the first limiting member 203 and the inner member 2042 and is connected to the second fixing member 2091 to axially limit the first limiting member 203 and the second limiting member 204, and the hot-melt metal member 2092 is in contact between the inner member 2042 and the second fixing member 2091.

[0063] Preferably, the first stopper 203 and / or the outer member 2041 is provided with a guide groove 210 for the fourth stopper 206 to move, the guide groove 210 extends radially inward and is concave upward or downward, so that the fourth stopper 206 moves radially along the guide groove 210; the third stopper 205 is formed by the boss circumferentially arranged at the lower port of the valve seat 201, and the inner side wall of the boss forms an inclined surface or a curved surface; the first stopper 203 and / or the inner member 2042 is provided with a stopper 211 that cooperates with the fourth stopper 206, and the stopper 211 is an inclined surface or a curved surface. A heat collecting sheet 212 is also configured.

[0064] Through the above technical solution, the fire sprinkler 301 provided by the present invention can not only perform active spraying through the active control component, or passively open in case of fire, but also has two control modes.

[0065] On the other hand, the present invention provides a fire protection system, comprising at least one sprinkler, at least one sprinkler being the fire protection sprinkler 301, and further comprising a diversion mechanism, wherein the diversion mechanism comprises:

[0066] The first connecting port 304 is connected to civil water;

[0067] The second communication port 305 forms a water outlet for civil use;

[0068] The third communication port 306 is connected to the fire fighting pipe 1; the first communication port 304 and the second communication port 305 form a first communication passage 101, and the first communication port 304 and the third communication port 306 form a second communication passage 101;

[0069] The flow dividing mechanism further includes a control component for controlling whether the first connecting channel 101 and the second connecting channel 101 of the flow dividing mechanism are connected;

[0070] It also includes a controller 309, which controls the operation of the control components and the active control components of the fire sprinkler 301, controls the overall action of the fire protection system, and the actual status and active triggering control of each component.

[0071] There are multiple modes of the control assembly, one of which is: the control assembly includes a diverter valve assembly 2, the diverter valve assembly 2 includes a valve base 401 and a valve core assembly disposed in the valve base 401, the first communication port 304, the second communication port 305 and the third communication port 306 are opened on the valve base 401;

[0072] The valve base 401 is provided with a first channel 4011, a second channel 4012, a third channel 4013 and a fourth channel 4014 in sequence. The valve core assembly includes a movable diverter 4021 and a movable member 4022 movably connected to the movable diverter 4021. An elastic member 4023 is arranged between the movable member 4022 and the movable diverter 4021 to control the length of the valve core assembly. The movable diverter 4021 is provided with a water outlet 40211. One end of the movable diverter 4021 cooperates with the first channel 4011 or the second channel 4012 and the other end cooperates with the third channel 4013. The movable member 4022 is provided with a blocking portion 40221 that cooperates with the third channel 4013 or the fourth channel 4014. A valve body sealing sleeve 40131 is fixed to the third channel 4013. A third sealing ring 40132 is arranged between the valve body sealing sleeve 40131 and the inner wall of the third channel 4013. A second sealing ring 40121 is installed on the inner wall of the second channel 4012, a first sealing ring 40212 is installed on the outer periphery of one end of the movable diverter 4021, an annular groove 40133 is opened at the third channel 4013, a spring sheet 40134 is stuck in the annular groove 40133, the spring sheet 40134 limits the valve body sealing sleeve 40131, and a fourth sealing ring 40141 is installed on the inner wall of the fourth channel 4014.

[0073] The movable body includes an internal movable cover and a valve body cover fixed to the internal movable cover. The elastic member 4023 is a spring.

[0074] Among them, the diverter valve has two working states: 1. When the fire protection system is used, civil water passes through the first connecting channel 101 and is used as civil tap water; 2. When the fire protection system is triggered, the water pump 5 starts to boost the water flow through the second connecting channel 101 and enters the fire protection pipe 1, and the fire is extinguished at the nozzle.

[0075] The first connecting port 304 is connected to the water pump 5 through a water pipe, the second connecting port 305 is connected to the faucet 308, and the third connecting port 306 is connected to the fire fighting pipe 1 and is connected to the air pump 6. The water pump 5 is pressurized to make one end of the active diverter 4021 cooperate with the second channel 4012, so that the civilian water passes through the water port 40211 and enters the fire fighting pipe 1 through the second connecting channel 101; the air pump 6 works to make the blocking part 40221 of the movable part 4022 contact the third channel 4013, so that the civilian water passes through the water port 40211 and enters the faucet 308 through the first connecting channel 101. Faucet 308: The use of civilian water in the fire fighting system. When the fire fighting system is not triggered, the air pump 6 works to hold up the active diverter 4021. When the fire fighting system is triggered, the air pump 6 stops working and the water is used for fire fighting.

[0076] Preferably, a one-way valve 7 is arranged on the pipeline between the air pump 6 and the third connecting port 306 to control the fire fighting system to stop water flow after the fire extinguishing is completed.

[0077] Through the above technical solution, the water pump 5 controls the pressure of civil water and fire water, and delivers water and ensures the storage of gas in the water pipe; wherein the water pipe can be connected to the pressure gauge 8, the diverter valve, the nozzle and the above-mentioned fire sprinkler 301 and other components through the water pipe connector. The pressure gauge can monitor the water pressure and air pressure in the water pipe in real time, and perform real-time fire triggering actions according to the pressure in the water pipe.

[0078] Second, the control assembly includes a second electrically controlled valve 901 at the second communication port 305 of the control diversion mechanism, and a third electrically controlled valve 902 at the third communication port 306 of the control diversion mechanism. In other embodiments, the diversion mechanism may further include a water tank 11, and the first communication port 304, the second communication port 305 and the third communication port 306 are provided on the water tank 11. When the fire fighting system is triggered, the civil water supply is automatically disconnected, and when the fire fighting is over, the fire fighting water supply is automatically disconnected.

[0079] Among them, the outer part 2041 can be an aluminum block, and the inner part 2042 can be stainless steel. After heating, the interference fit becomes a clearance fit, triggering the fire sprinkler 301 to spray water.

[0080] The nozzle further includes a first nozzle 302 and / or a second nozzle 303. The active control component 208 includes a copper sleeve, a spherical coil, or an infrared light source 12 disposed at the thermal variable component 1013 of the nozzle. The copper sleeve can be annular to form a heating plate.

[0081] There are many types of nozzles, one of which is that the first nozzle 302 is an existing nozzle structure, which is similar to the structure of the fire sprinkler 301, except that the inner part 2042 and the outer part 2041 of the first nozzle 302 are integrally formed. Other structures are the same. The active control part 208 is arranged on the periphery of the hot-melt metal part 2092 of the first nozzle 302.

[0082] In the fire sprinkler 301 , the active control component 208 may be disposed away from the hot-melt metal component 2092 thereof.

[0083] First, the second nozzle 303 includes a seat body 1001, a water outlet channel 1002 connected to the fire fighting pipe 1 is provided on the seat body 1001, and a plug 1003 is arranged at the water outlet channel 1002. Two limit rods 1004 are fixed on the seat body 1001, one of the limit rods 1004 is provided with a limit groove 1005, and the other limit rod 1004 is provided with a shelf groove 1006, and also includes a transverse control rod 1007 and a longitudinal control rod 1008 pivotally connected to the transverse control rod 1007, and the transverse control rod 1007 is provided with a resisting plug 1003, the end of the longitudinal control rod 1008 at least partially extends into the upper part of the limiting groove 1005, and the extending part 1010 is provided with a first guiding inclined surface 1011, and the cross control rod 1007 is provided with a second guiding inclined surface 1012 at the matching position of the shelf groove 1006, and a thermal change component 1013 is installed between the other limiting rod 1004 and the conflicting plug 1003 to balance the force of the second nozzle 303. When the thermal change component 1013 is heated, the force balance is destroyed, so that the plug 1003 is separated from the water outlet channel 1002. The limiting rod 1004 is provided with a nut 1014 to adapt and adjust the thermal change component 1013.

[0084] In the first nozzle 302 and the fire sprinkler 301 , the thermally variable component 1013 is a hot-melt metal component 2092 , and in the second nozzle 303 is hot-melt glass.

[0085] It also includes a smoke alarm 310 and / or a camera 311 connected to the controller 309, which adds a reminder from the smoke alarm 310 and monitoring from the camera 311. The PLC controller 309 implements monitoring and transmits information, and the system determines to trigger the fire sprinkler 301 to spray water.

[0086] Compared with the prior art, the advantages of the present invention are: the present invention has a simple structure, and the fire sprinkler 301 has two fire-fighting triggering modes, active and passive. It can be passively triggered as the ambient temperature increases, or actively triggered by PLC. The present invention adds active heating means to the fire sprinkler 301, and designs a control system matching it based on this. The active control component uses the heat collecting plate 212 to collect the temperature of the heating plate, dissolves the fusible metal, or separates the inner part 2042 and the outer part 2041 due to their different thermal expansion and contraction rates, so that the fire sprinkler 301 enters the triggered state, and the PLC controller 309 collects the information of the fire sprinkler 301 triggering.

[0087] Among them, a female head can be fixed outside the valve seat, and a sub-head is plugged into the female head, and the sub-head is fixed to the heating plate. There are three connecting wires on the heating plate, one of which is connected to the PLC controller, and the female head is connected to the PLC controller. When the sub-head and the female head are connected, the PLC controller can determine whether the heating plate is working.

[0088] The second is the positive electrode, and the third is the negative electrode to supply power to the heating plate.

[0089] If the connection is disconnected, the sub-head and the mother-head are separated, and the PLC controller senses that the connection line is disconnected and determines that the solar collector has fallen off.

[0090] The sub-head and the heating plate are integrated and connected by wire welding. The nozzle triggers the heating plate and the sub-head to fall with the nozzle.

[0091] In order to ensure the simultaneous use of civil water and fire water, when the fire sprinkler 301 is not triggered, the air pump 6 supplies air, so that the active diverter 4021 is sealed. The water pump 5 does not work, and the civil water enters the civil water pipe to ensure the domestic water supply. When the fire sprinkler 301 is triggered, the air pump 6 cuts off the air, so that the active diverter 4021 is separated, and the water pump 5 works. After the civil water is pressurized, it enters the fire water pipe to ensure the fire water supply.

[0092] The PLC controller 309 performs information monitoring throughout the entire process, including the air pump 6 inflating the fire pipe in the early stage, the manual heating of the heating plate, the collection of information on whether the fire sprinkler 301 is triggered, and the real-time monitoring of the water pressure of the fire pipe and the civil water pipe.

[0093] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A fire sprinkler, characterized in that: The invention comprises a communication channel (101) connected to a fire-fighting pipe (1), and a valve assembly (2) which cooperates with the communication channel (101) to control the opening and closing thereof, wherein the valve assembly (2) comprises a valve seat (201) and a valve core assembly, wherein the valve core assembly is at least partially disposed in the valve seat (201) and cooperates with the communication channel (101) to seal or separate to realize the opening and closing of the fire-fighting nozzle (301), and is characterized in that: The valve core assembly comprises a blocking member (2014) for cooperating with the communication channel (101) and an action assembly (202) for controlling the action of the blocking member (2014); The action component (202) comprises a first limiter (203), a second limiter component (204), a third limiter (205), a fourth limiter (206), and a first fixing component (207), wherein the first fixing component (207) connects the first limiter (203), the fourth limiter (206), and the second limiter component (204); a valve cavity is formed in the valve seat (201), the third limiter (205) is arranged on a side wall of the valve cavity, and the second limiter acts on the fourth limiter (206) to make the fourth limiter (206) be in an outer position; The third limiting member (205) and the second limiting assembly (204) support the fourth limiting member (206); the first limiting member (203) is placed on the fourth limiting member (206) and at least partially contacts the fourth limiting member (206), so that the fourth limiting member (206) is located between the first limiting member (203), the second limiting assembly (204) and the third limiting member (205) and maintains a force balance so that the blocking member (2014) contacts the connecting channel (101) to close it; The second limiting component (204) comprises an outer part (2041) and an inner part (2042) with an interference fit, wherein the thermal expansion and contraction coefficients of the outer part (2041) and the inner part (2042) are different, and further comprises an active control component (208), wherein the active control component (208) controls the thermal expansion and contraction of the outer part (2041) and the inner part (2042) to separate the outer part (2041) and the inner part (2042), and the outer part (2041) moves axially downward, thereby destroying the force balance of the fourth limiting component (206), so that the fourth limiting component (206) moves radially inward and / or axially downward, so that the first limiting component (203) moves axially downward, and the blocking component (2014) at least partially detaches from the connecting channel (101) so that the fire sprinkler (301) opens for spraying.

2. The fire sprinkler according to claim 1, characterized in that: The invention also comprises a passive control component (209), wherein the passive control component (209) comprises a second fixing component (2091) and a hot-melt metal component (2092); the first fixing component (207) passes through the first limiting component (203) and the inner component (2042) and is connected to the second fixing component (2091) so as to axially limit the first limiting component (203) and the second limiting component (204); and the hot-melt metal component (2092) is in contact between the inner component (2042) and the second fixing component (2091).

3. The fire sprinkler according to claim 1, characterized in that: The first limiting member (203) and / or the outer member (2041) is provided with a guide groove (210) for the fourth limiting member (206) to move, and the guide groove (210) extends radially inward and is concave upward or downward, so that the fourth limiting member (206) can move along the guide groove (210). Radial movement; And / or, the third limiting member (205) is formed by the boss circumferentially arranged at the lower port of the valve seat (201), and the inner side wall of the boss forms an inclined surface or a curved surface; And / or, the first limiting member (203) and / or the inner member (2042) is provided with a limiting portion (211) that cooperates with the fourth limiting member (206), and the limiting portion (211) is an inclined surface or a curved surface.

4. A fire fighting system, characterized in that: The invention comprises at least one nozzle, at least one of which is a fire sprinkler according to any one of claims 1 to 3, and further comprises a flow diversion mechanism, wherein the flow diversion mechanism comprises: A first connecting port (304) connected to civil water; The second communication port (305) forms a water outlet for civil use; A third communication port (306) connected to a fire fighting pipe (1); the first communication port (304) and the second communication port (305) form a first communication passage (101); the first communication port (304) and the third communication port (306) form a second communication passage (101); The flow dividing mechanism further comprises a control component for controlling whether the first connecting channel (101) and the second connecting channel (101) of the flow dividing mechanism are connected; It also includes a controller (309), which controls the operation of the control component and the active control component of the fire sprinkler (301).

5. The fire fighting system according to claim 4, characterized in that: The control assembly comprises a diverter valve assembly (2), the diverter valve assembly (2) comprises a valve base (401) and a valve core assembly arranged in the valve base (401), the first communication port (304), the second communication port (305) and the third communication port (306) are provided on the valve base (401); The valve base (401) is provided with a first channel (4011), a second channel (4012), a third channel (4013) and a fourth channel (4014) in sequence; the valve core assembly comprises a movable diverter body (4021) and a movable part (4022) movably connected to the movable diverter body (4021); an elastic part (4023) is arranged between the movable part (4022) and the movable diverter body (4021) to control the length of the valve core assembly; a water outlet (40211) is provided on the movable diverter body (4021); one end of the movable diverter body (4021) cooperates with the first channel (4011) or the second channel (4012), and the other end cooperates with the third channel (4013); the movable part (4022) is provided with a blocking part (40221) that cooperates with the third channel (4013) or the fourth channel (4014).

6. The fire fighting system according to claim 5, characterized in that: The first communication port (304) is connected to a water pump (5), the second communication port (305) is connected to a faucet (308), and the third communication port (306) is connected to a fire-fighting pipe (1) and is also connected to an air pump (6). The water pump (5) applies pressure to make one end of the movable diverter (4021) cooperate with the second channel (4012), so that civil water passes through the water port (40211) and enters the fire-fighting pipe (1) through the second communication channel (101); The air pump (6) works to push the blocking portion (40221) of the movable member (4022) against the third channel (4013), so that domestic water passes through the water outlet (40211) and the first connecting channel (101) into the faucet (308).

7. The fire fighting system according to claim 6, characterized in that: A one-way valve (7) is arranged on the pipeline between the air pump (6) and the third connecting port (306) to control the fire fighting system to stop water flow after the fire fighting is finished.

8. The fire fighting system according to claim 4, characterized in that: The control component comprises a second electrically controlled valve (901) at a second communication port (305) of the control diversion mechanism, and a third electrically controlled valve (902) at a third communication port (306) of the control diversion mechanism.

9. The fire fighting system according to claim 8, characterized in that: The diversion mechanism further comprises a water tank (11), and the first communication port (304), the second communication port (305) and the third communication port (306) are opened on the water tank (11).

10. The fire fighting system according to claim 4, characterized in that: The nozzle also includes a first nozzle (302) and / or a second nozzle (303), and the active control component (208) includes a copper sleeve, a spherical coil, or an infrared light source (12) arranged at the thermal variable component (1013) of the nozzle.

11. The fire fighting system according to claim 10, characterized in that: The second nozzle (303) comprises a seat body (1001), a water outlet channel (1002) connected to the fire fighting pipe (1) is provided on the seat body (1001), and a plug (1003) is arranged at the water outlet channel (1002), two limit rods (1004) are fixed on the seat body (1001), one of the limit rods (1004) is provided with a limit groove (1005), and the other limit rod (1004) is provided with a shelf groove (1006), and also comprises a transverse control rod (1007) and a longitudinal control rod (1008) pivotally connected to the transverse control rod (1007), the transverse control rod (1007) is provided with a resisting portion (1009) that resists the plug (1003), and the longitudinal control rod (100 8) at least partially extends into the upper part of the limiting groove (1005), and the extending part (1010) is provided with a first guiding inclined surface (1011), and the cooperation place of the said transverse control rod (1007) and the said shelf groove (1006) is provided with a second guiding inclined surface (1012), and a thermal change component (1013) is installed between the said other limiting rod (1004) and the said abutting plug (1003) so that the force of the second nozzle (303) is balanced, and when the said thermal change component (1013) is heated and actuated, the force balance is destroyed so that the plug (1003) is separated from the said water outlet channel (1002); a nut (1014) is arranged at the said limiting rod (1004); and / or, the said thermal change component (1013) is a hot-melt metal component (2092) or hot-melt glass.

12. The fire fighting system according to claim 4, characterized in that: The device also includes a smoke alarm (310) and / or a camera (311) connected to the controller (309).

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