CN109248394B

CN109248394B - Temperature control automatic fire extinguisher

Info

Publication number: CN109248394B
Application number: CN201811265496.XA
Authority: CN
Inventors: 殷雪云; 顾锡明
Original assignee: CHANGSHU MINGJIA ELECTRONIC EQUIPMENT CO LTD
Current assignee: CHANGSHU MINGJIA ELECTRONIC EQUIPMENT CO LTD
Priority date: 2018-10-29
Filing date: 2018-10-29
Publication date: 2023-07-04
Anticipated expiration: 2038-10-29
Also published as: CN109248394A

Abstract

A temperature control automatic fire extinguishing device comprises a valve body, wherein a piston cavity, a fire extinguishing agent leading-out cavity, a valve cavity and a spring supporting seat cavity are sequentially arranged in the center of the valve body from top to bottom; the piston is arranged in the piston cavity, a piston rod is arranged on one side of the piston facing the lower cavity of the piston cavity, and a valve is arranged at the lower end of the piston rod; the valve cover is fixed with the top of the valve body in a sealing way; the fire extinguishing agent spraying mechanism is connected to the right side of the valve body; the piston work control mechanism is arranged on the left side of the valve body; the temperature sensing agent induces the expansion mechanism, fix with left side of the valve block; the temperature induced expansion pipe is connected with the temperature sensing agent induced expansion mechanism; the spring supporting seat is connected with the valve body, a fire extinguishing agent through cavity is arranged in the center of the spring supporting seat, a valve return spring supporting flange is arranged on the inner wall of the fire extinguishing agent through cavity, the upper end of the valve return spring is positioned in the valve cavity, and the lower end of the valve return spring is positioned in the fire extinguishing agent through cavity. The power supply is not needed, so that the electric energy is saved, and the safety is ensured; the volume is small and the structure is simple; the reliability and the fire extinguishing effect are good; meets the demand of the equipment according to the needs.

Description

Temperature control automatic fire extinguisher

Technical Field

The invention belongs to the technical field of automatic fire extinguishing equipment, and particularly relates to a temperature control automatic fire extinguishing device.

Background

In general, the fire prevention supervision out of control phenomenon is relatively prominent because places such as communication base stations, distribution rooms, natural gas booster stations, libraries, relics, exhibition places, various storehouses, various building houses, machine rooms and even vehicle underground charging stations are not specially assigned to all-weather occasions. In particular, because the fire source cannot be extinguished at the first time, once perceived is often too late, difficulty is added to fire fighting and disaster relief, and the degree of property loss is aggravated and even personal safety is compromised. If the fire-fighting equipment is not limited to the exemplified site installation system, the fire-fighting equipment can play a positive role in preventing the fire-fighting equipment to a great extent, but the fire-fighting equipment is often not implemented due to the restriction of subjective factors, such as high installation cost, and cannot be born due to the restriction of the structure of the building itself. Further, it is of course of positive significance if the fire-fighting equipment of the system can be provided in a simple structure, economical, inexpensive, reliable and easy to install in the place in a complementary manner to the fire-fighting equipment of the system.

In the published chinese patent literature, technical information about temperature-controlled automatic fire extinguishing apparatuses is seen, such as CN205886026U recommended "a temperature-sensitive water-based automatic fire extinguishing apparatus" and CN206121001U provided with "temperature smoke-controlled automatic fire extinguishing apparatus". A typical "automatic fire extinguisher" as described in CN205683462U can be said to be the advantage of satisfying the requirements of "automatic monitoring at 24 hours and automatic fire extinguishing by spraying" described in paragraph 0010 of the specification, but because a control circuit of relatively complex structure is required and an operating power supply is supported (paragraph 0020 of the specification), there is a certain degree of criticality to the installation position and installation mode, and because of the dependence on power supply control, the electrical safety is affected to a certain extent.

In view of the above prior art, the applicant has made an advantageous design which forms the technical solution to be described below and which proves to be viable through computer simulation deduction tests with security measures.

Disclosure of Invention

The invention aims to provide a temperature control automatic fire extinguishing device which is beneficial to avoiding being influenced by power-off factors and ensuring good safety by being supported by a power supply, is beneficial to simplifying the structure and being convenient to manufacture and assemble, is beneficial to ensuring the reliability in use and reflecting ideal automatic fire extinguishing effect, and is beneficial to reflecting the flexibility of being connected with a fire extinguishing agent supply source and meeting the allocation requirements of different places and different carriers.

The invention accomplishes the task by this, a kind of automatic fire extinguishing apparatus of temperature control, including a valve block, there are a piston cavity, fire extinguishing agent leading-out cavity, valve cavity and spring support seat cavity sequentially from top to bottom in the central position of the valve block, there is a valve to separate and keep off between cavity and fire extinguishing agent leading-out cavity, there is a piston rod sliding hole in the central position of the valve to separate and keep off, the upper portion of the piston rod sliding hole communicates with cavity of the piston, and the lower portion communicates with fire extinguishing agent leading-out cavity; the piston is arranged in the piston cavity and is in sealing fit with the wall of the piston cavity, the piston divides the piston cavity into an upper piston cavity positioned above the piston and a lower piston cavity positioned below the piston, a piston rod is fixed at the central position of one side of the piston facing the lower piston cavity, the lower end of the piston rod sequentially penetrates through the piston rod sliding hole and the fire extinguishing agent leading-out cavity to extend into the valve cavity, a valve is fixed in the valve cavity, and the valve is used for opening or closing a valve opening of the fire extinguishing agent leading-out cavity; the valve cover is used for sealing the upper cavity of the piston cavity and is sealed and fixed with the top of the valve body; the fire extinguishing agent spraying mechanism is connected to the right side of the valve body at a position corresponding to the fire extinguishing agent leading-out cavity and is communicated with the fire extinguishing agent leading-out cavity; a piston operation control mechanism for driving the piston to displace downward to release the valve from closing the valve opening of the fire extinguishing agent discharging chamber, the piston operation control mechanism being disposed on the left side of the valve body and communicating with the upper chamber of the piston chamber and the valve chamber; a temperature sensing agent induced expansion mechanism for actuating the piston operation control mechanism, the temperature sensing agent induced expansion mechanism being fixed to the left side of the valve body at a position corresponding to the piston operation control mechanism; the temperature induced expansion pipe is connected with the temperature sensing agent induced expansion mechanism through a capillary tube; the fire extinguishing agent through cavity is communicated with the valve cavity, a valve return spring supporting flange is formed on the inner wall of the fire extinguishing agent through cavity at intervals around the inner wall, the upper end of the valve return spring is positioned in the valve cavity and supported on the valve, and the lower end of the valve return spring is positioned in the fire extinguishing agent through cavity and supported on the valve return spring supporting flange.

In a specific embodiment of the invention, a vent hole is arranged on the valve body and at a position corresponding to the lower chamber of the piston cavity, and the vent hole enables the lower chamber of the piston cavity to be communicated with the outside; an external thread of the valve body for matching with the fire extinguishing agent supply source is formed on the outer wall of the lower part of the valve body and at a position corresponding to the spring supporting seat cavity; the spring support seat comprises a spring support seat cavity, wherein the cavity wall of the spring support seat cavity is provided with a spring support seat cavity wall internal thread, the outer wall of the upper end of the spring support seat is provided with a spring support seat external thread, and the spring support seat external thread is in threaded fit with the spring support seat cavity wall internal thread.

In another specific embodiment of the present invention, the fire extinguishing agent supply source is a fire extinguishing agent tank or a fire extinguishing agent conveying pipeline.

In a further specific embodiment of the invention, a nozzle holder connection screw hole is provided on the right side of the valve body and at a position corresponding to the fire extinguishing agent discharging mechanism, the nozzle holder connection screw hole being in communication with the fire extinguishing agent discharging chamber, the fire extinguishing agent discharging mechanism being connected to the nozzle holder connection screw hole.

In still another specific embodiment of the present invention, the fire extinguishing agent spraying mechanism includes a nozzle holder and a nozzle, the outer wall of the left end of the nozzle holder is formed with a nozzle holder external screw thread, the nozzle holder external screw thread is in threaded connection with the nozzle holder connection screw hole, the right end of the nozzle holder protrudes out of the nozzle holder connection screw hole and is formed with a nozzle connector, the nozzle holder central hole of the nozzle holder is communicated with the fire extinguishing agent leading-out cavity, the nozzle and the nozzle connector form an integral structure, and the spraying cavity of the nozzle is communicated with the nozzle holder central hole.

In a further specific embodiment of the present invention, a control valve body cavity is provided at the left side of the valve body and at a position corresponding to the piston operation control mechanism, and an upper diversion hole and a lower diversion hole are provided at a position corresponding to the control valve body cavity, the upper part of the upper diversion hole is communicated with the upper chamber of the piston cavity, the lower part is communicated with the control valve body cavity, the upper part of the lower diversion hole is communicated with the control valve body cavity, the lower part is communicated with the valve body cavity, and the temperature sensing agent induced expansion mechanism is covered outside the piston operation control mechanism.

In a further specific embodiment of the present invention, the piston operation control mechanism includes a control valve body, a push rod, a valve core spring and a pressing plate, wherein the middle part and the right end of the control valve body are placed in the control valve body cavity, the left end of the control valve body protrudes out of the control valve body cavity, a push rod hole penetrating from the left end to the right end of the control valve body is arranged at the center position of the control valve body, a first through hole I communicated with the push rod hole is arranged at the middle part of the control valve body, the first through hole I is positioned corresponding to the upper diversion hole and communicated with the upper diversion hole, a valve core spring cavity is formed at the center position of the right end part of the control valve body, the valve core spring cavity is communicated with the push rod hole and is arranged on the cavity wall of the valve core spring cavity, the second through hole II is positioned corresponding to the lower diversion hole and communicated with the lower diversion hole, the valve core and the valve core spring is arranged in the spring cavity, the left end of the spring is arranged at the left side of the control valve body, the left end of the spring is supported at the upper end of the control valve body, the push rod is supported at the left end of the valve body and the upper end of the push rod is contacted with the valve body, the valve core is stretched out of the valve body is contacted with the valve core spring cavity, and the valve core is stretched out of the valve body is positioned at the valve core cavity, and the valve core is contacted with the valve core is stretched out of the valve core spring cavity; an expansion pipe storage rack is arranged on the valve cover, and the temperature induced expansion pipe connected with the temperature sensing agent induced expansion mechanism through the capillary is registered on the expansion pipe storage rack.

In a further specific embodiment of the invention, a pair of control valve body sealing rings are sleeved in the middle of the control valve body, and the pair of control valve body sealing rings are in sealing fit with the control valve body cavity.

In still another specific embodiment of the present invention, the temperature-sensitive agent-induced expansion mechanism includes a push rod disc housing cap, a push rod disc, and an expansion membrane, a cap rim of the push rod disc housing cap being fixed to the valve body at a position corresponding to a left end of the control valve body, the push rod disc housing cap having a cap cavity, the left end of the control valve body and the pressure plate being located in the cap cavity, the expansion membrane being disposed in the cap cavity and a peripheral edge portion of the expansion membrane being defined by an expansion membrane edge defining ring fixed to a cavity wall of the cap cavity at a position corresponding to a right side of the expansion membrane, a space between a left side of the expansion membrane and a cap top of the push rod disc housing cap being configured as a liquid-induced expansion cavity, the push rod disc being fixed to a central position of the left side of the expansion membrane in the liquid-induced expansion cavity, the capillary tube being connected to the central position of the cap top and communicating with the liquid-induced expansion cavity, the left end of the push rod being detected into the cap cavity and fixed to the disc after passing through the central position of the expansion membrane.

In yet another specific embodiment of the present invention, a cap rim fixing leg screw hole is provided at a left side of the valve body and at a position corresponding to the cap rim at a distance, a cap rim fixing leg is fixed on the cap rim and around the periphery of the cap rim at a distance, and a cap rim fixing leg screw is provided on the cap rim fixing leg and is fixed with the cap rim fixing leg screw hole; the left side of the valve body and the position corresponding to the pressing plate are provided with pressing plate fixing screw holes, and the pressing plate is fixed with the pressing plate fixing screw holes through pressing plate fixing screws.

One of the technical effects of the technical scheme provided by the invention is that the power supply is not required to be relied on for supporting work, so that power failure is not required to be worried about, the electric energy consumption can be saved, and good safety can be ensured; secondly, the volume is small and the structure is simple, so that the manufacturing and the assembly are convenient; thirdly, as the temperature is sensed by the temperature-induced expansion pipe to expand the liquid in the expansion pipe and the temperature-sensitive agent is led in the expansion mechanism through the capillary, the expansion mechanism is induced by the temperature-sensitive agent to act on the piston working control mechanism, and then the piston is driven down by the piston working control mechanism to open the valve opening of the fire extinguishing agent leading-out cavity, and the fire extinguishing agent in the fire extinguishing agent tank or the fire extinguishing agent conveying pipeline sequentially passes through the fire extinguishing agent cavity, the valve opening of the fire extinguishing agent leading-out cavity and is sprayed out by the fire extinguishing agent spraying mechanism, the automatic fire extinguishing device has excellent reliability and shows ideal automatic fire extinguishing effect; fourthly, the lower part of the valve body can be connected with the fire extinguishing agent tank and the fire extinguishing agent conveying pipeline, and the temperature-induced expansion pipe can be arranged on the valve cover and can be attached to a carrier such as inflammable equipment, so that the requirements of different situations, different environments and different carriers on demand can be met.

Drawings

Fig. 1 is a structural diagram of an embodiment of the present invention.

Fig. 2 is a cross-sectional view of fig. 1.

FIG. 3 is a schematic diagram of the present invention in combination with a flammable apparatus.

Detailed Description

In order to make the technical spirit and advantages of the present invention more clearly understood, the applicant will now make a detailed description by way of example, but the description of the examples is not intended to limit the scope of the invention, and any equivalent transformation made merely in form, not essentially, according to the inventive concept should be regarded as the scope of the technical solution of the present invention.

In the following description, all concepts related to the directions or azimuths of up, down, left, right, front and rear are directed to the position state of fig. 1, and thus, the present invention is not to be construed as being limited to the embodiments provided by the present invention.

Referring to fig. 1 and 3, a valve body 1 is shown, a piston cavity 11, a fire extinguishing agent leading-out cavity 12, a valve cavity 13 and a spring supporting seat cavity 14 are sequentially formed from top to bottom in the central position of the valve body 1, a valve baffle 15 is formed between the piston cavity 11 and the fire extinguishing agent leading-out cavity 12, a piston rod sliding hole 151 is formed in the central position of the valve baffle 15, the upper part of the piston rod sliding hole 151 is communicated with the piston cavity 11, and the lower part of the piston rod sliding hole is communicated with the fire extinguishing agent leading-out cavity 12; a piston 2 is shown, the piston 2 is arranged in the piston cavity 11 and is in sealing fit with the wall of the piston cavity, the piston 2 divides the piston cavity 11 into a piston cavity upper cavity 111 positioned above the piston 2 and a piston cavity lower cavity 112 positioned below the piston 2, the upper part of the piston rod sliding hole 151 is communicated with the piston cavity lower cavity 112, a piston rod 21 is fixed at the central position of one side of the piston 2 facing the piston cavity lower cavity 112 through a piston rod screw 212 (shown in fig. 2), the lower end of the piston rod 21 sequentially passes through the piston rod sliding hole 151 and the fire extinguishing agent leading-out cavity 12 to extend into the valve cavity 13 and is fixed with a valve 211, and the valve 211 opens or closes a fire extinguishing agent leading-out cavity valve opening 121 of the fire extinguishing agent leading-out cavity 12; a cap 3 for closing the piston chamber upper chamber 111 is shown, the cap 3 is sealed and fixed with the top of the valve body 1 by a cap fixing screw 33 at a position corresponding to a cap fixing screw hole 16i formed at the top of the valve body 1 in a state of adding a cap seal ring 32; a fire extinguishing agent discharging mechanism 4 is shown, the fire extinguishing agent discharging mechanism 4 being connected to the right side of the valve body 1 at a position corresponding to the fire extinguishing agent discharging chamber 12 and communicating with the fire extinguishing agent discharging chamber 12; a piston operation control means 5 for urging the piston 2 downward to release the closure of the valve 211 to the valve port 121 of the fire extinguishing agent discharging chamber, the piston operation control means 5 being provided on the left side of the valve body 1 and communicating with the piston chamber upper chamber 111 and the valve chamber 13; a temperature-sensitive agent-induced expansion mechanism 6 for actuating the piston operation control mechanism 5 is shown, the temperature-sensitive agent-induced expansion mechanism 6 being fixed to the left side of the valve body 1 at a position corresponding to the piston operation control mechanism 5; a temperature induced expansion pipe 7 is shown, the temperature induced expansion pipe 7 being connected to the aforementioned temperature sensitive agent induced expansion mechanism 6 by a capillary tube 71; a spring support 8 and a valve return spring 9 are shown, the spring support 8 is connected to the lower part (lower end) of the valve body 1 at a position corresponding to the spring support chamber 14, a fire extinguishing agent passing chamber 81 penetrating from the upper part to the lower part of the spring support 8 is formed at the central position of the spring support 8, the fire extinguishing agent passing chamber 81 is communicated with the valve chamber 13, a valve return spring supporting flange 811 is formed on the inner wall of the fire extinguishing agent passing chamber 81 at intervals around the circumference of the inner wall, the upper end of the valve return spring 9 is positioned in the valve chamber 13 and supported on the valve 211, and the lower end is positioned in the fire extinguishing agent passing chamber 81 and supported on the valve return spring supporting flange 811.

As shown in fig. 1 and 3, a piston seal groove 22 is formed around the piston 2 on the side surface of the piston 2, a piston seal 221 is embedded in the piston seal groove 22, and the piston 2 is sealed and matched with the cavity wall of the piston cavity 11, that is, the cavity walls of the upper cavity 111 and the lower cavity 112 of the piston cavity by the piston seal 221; a piston rod sealing ring 213 is fitted to the piston rod 21 at a position corresponding to the piston rod sliding hole 151, and the piston rod 21 is brought into sealing relation with the wall of the piston rod sliding hole 151 by the piston rod sealing ring 213. Since the front expansion pipe 7 is filled with a liquid, the temperature-sensitive agent-induced expansion mechanism 6 may be referred to as a "liquid-induced expansion mechanism" or may be referred to as an "expansion mechanism" as it is (hereinafter, the same applies). Since the aforementioned capillary tube 71 acts like a capillary tube in a refrigeration system circuit for refrigeration compression, the applicant will not be reiterated. The aforementioned expansion tube 7 is commercially available, for example, preferably but not exclusively, a model GGS-S-2 sensor manufactured by Santa Classification sensing elements Co., shenzhen, guangdong, china and previously marketed and sold in the market as filed in this application.

With continued reference to fig. 1 and 2, a vent hole 16a is provided in the valve body 1 at a position corresponding to the piston chamber 112, and the vent hole 16a allows the piston chamber 112 to communicate with the outside; a valve body external thread 16b for coupling with a fire extinguishing agent supply source is formed on the outer wall of the lower portion of the valve body 1 and at a position (portion) corresponding to the aforementioned spring support seat chamber 14; a spring support seat cavity wall internal thread 141 is formed on the cavity wall, i.e., the inner wall, of the spring support seat cavity 14, a spring support seat external thread 82 is formed on the outer wall of the upper end of the spring support seat 8, and the spring support seat external thread 82 is in threaded fit with the spring support seat cavity wall internal thread 141.

The fire extinguishing agent supply source is a fire extinguishing agent tank or a fire extinguishing agent conveying pipeline. In the present embodiment, a fire extinguishing agent tank 10 is shown as a fire extinguishing agent tank for supplying a fire extinguishing agent, and the valve body male screw 16b described above is connected to the tank body female screw 1011 of the tank body nozzle 101 of the fire extinguishing agent tank 10. In this condition of use, the expansion tube 7 can be placed on the closure cap 3, or attached to the combustible material 20 as illustrated in fig. 3 by means of magnets or similar means, as required, using adhesive, tape, string, etc.

A nozzle holder connection screw hole 16c is formed at a position corresponding to the fire extinguishing agent discharging mechanism 4 on the right side of the valve body 1, the nozzle holder connection screw hole 16c communicates with the fire extinguishing agent discharging chamber 12, and the fire extinguishing agent discharging mechanism 4 is connected to the nozzle holder connection screw hole 16 c.

With continued reference to fig. 1 and 2, the fire extinguishing agent spraying mechanism 4 includes a nozzle holder 41 and a nozzle 42, a nozzle holder external thread 411 is formed on the outer wall of the left end of the nozzle holder 41, the nozzle holder external thread 411 is in threaded connection with the nozzle holder connection screw hole 16c, the right end of the nozzle holder 41 protrudes out of the nozzle holder connection screw hole 16c and forms a nozzle connector 413 in an outer hexagonal shape, a nozzle holder center hole 412 of the nozzle holder 41 communicates with the fire extinguishing agent outlet chamber 12, the nozzle 42 is horn-shaped, the nozzle 42 and the nozzle connector 413 form an integral structure, and a spraying chamber 421 of the nozzle 42 communicates with the nozzle holder center hole 412.

A control valve body cavity 17 is formed at the left side of the valve body 1 and at the position corresponding to the piston operation control mechanism 5, an upper diversion hole 16d and a lower diversion hole 16e are also formed at the position corresponding to the control valve body cavity 17, the upper part of the upper diversion hole 16d is communicated with the piston cavity upper chamber 111 through a turning hole 16j formed on the valve body 1, the lower part is communicated with the control valve body cavity 17, the upper part of the lower diversion hole 16e is communicated with the control valve body cavity 17, the lower part is communicated with the valve cavity 13, and the temperature sensing agent induced expansion mechanism 6 is covered outside the piston operation control mechanism 5.

Continuing to refer to fig. 1 and 2, the aforementioned piston operation control mechanism 5 includes a control valve body 51, a push rod 52, a spool 53, a spool spring 54 and a pressing plate 55, the middle and right ends of the control valve body 51 are placed in the aforementioned control valve body cavity 17, the left end of the control valve body 51 protrudes out of the control valve body cavity 17, a push rod hole 511 penetrating from the left end to the right end of the control valve body 51 is provided in the center position of the control valve body 51, a first through hole i 512 communicating with the push rod hole 511 is provided in the middle of the control valve body 51, the position of the first through hole i 512 corresponds to the aforementioned upper diversion hole 16d and communicates with the upper diversion hole 16d, a spool spring cavity 513 is formed in the center position of the right end of the control valve body 51, the spool spring cavity 513 communicates with the push rod hole 511 and a second through hole ii 5131 is provided in the cavity wall of the spool spring cavity 513, the second through hole ii 5131 is located corresponding to the lower pilot hole 16e and communicates with the lower pilot hole 16e, a spool 53 and a spool spring 54 are provided in the spool spring chamber 513, wherein the spool spring 54 is located on the right side of the spool 53, the left end of the spool spring 54 is supported on the spool 53, the right end is supported on the bottom wall of the control valve body chamber 17, the right end of the push rod 52 is slidably fitted with the push rod hole 511, and the right end face of the push rod 52 is in contact with the spool 53, the left end of the push rod 52 extends out of the push rod hole 511 and is connected with the temperature-sensitive agent-induced expansion mechanism 6, a pressing plate 55 is fixed to the left side of the valve body 1 at a position corresponding to the left end of the control valve body 51, a valve body position hole 551 is provided in the center position of the pressing plate 55, and the left end of the control valve body 51 is protruded into the valve body position hole 551.

As shown in fig. 1 and 2, an expansion tube storage frame 31 is provided on the valve cover 3, specifically, an expansion tube storage frame 31 is fixed by a storage frame fixing screw 311, and the temperature-induced expansion tube 7 connected to the temperature-sensitive agent-induced expansion mechanism 6 through the capillary 71 is stored in the expansion tube storage frame 31.

As shown in fig. 1 and 2, a pair of control valve body seal rings 514 are fitted in the middle of the control valve body 51, and the pair of control valve body seal rings 514 are in sealing engagement with the wall of the control valve body chamber 17.

With continued reference to fig. 1 and 2, the aforementioned temperature-sensitive agent-induced expansion mechanism 6 includes a push rod disc housing cap 61, a push rod disc 62, and an expansion membrane 63, the cap rim 611 of the push rod disc housing cap 61 being fixed to the aforementioned valve body 1 at a position corresponding to the left end of the aforementioned control valve body 51, the push rod disc housing cap 61 having a cap cavity 612, the left end of the control valve body 51 and the aforementioned pressure plate 55 being located in the cap cavity 612, the expansion membrane 63 being disposed in the cap cavity 612 and the peripheral edge portion of the expansion membrane 63 being defined by an expansion membrane edge defining ring 631, the space between the left side of the expansion membrane 63 and the cap top 613 of the push rod disc housing cap 61 being configured as a liquid-induced expansion cavity 64 (which may also be referred to as "expansion cavity") and the push rod disc 62 being preferably fixed to the central position of the left side of the expansion membrane 63 by cementing or riveting in the liquid-induced expansion cavity 64, the expansion membrane edge defining ring 631 being fixed to the central position of the left side of the aforementioned cap cavity 612, the aforementioned cap top 71 being connected to the central position of the aforementioned cap 63 and the aforementioned capillary tube top 613 being connected to the central position of the aforementioned push rod disc 52 and passing through the aforementioned central position of the aforementioned expansion membrane 613 and being fixed to the central position of the aforementioned capillary tube top 613 and being connected to the front of the capillary tube 52.

In the present embodiment, the aforementioned swelling film 63 is preferably a rubber film.

A cap rim fixing leg screw hole 16f is provided on the left side of the valve body 1 at a position corresponding to the cap rim 611 at intervals, a cap rim fixing leg 6111 is provided on the cap rim 611 at intervals around the cap rim 611, a cap rim fixing leg screw 61111 is provided on the cap rim fixing leg 6111, and the cap rim fixing leg screw 61111 is fixed to the cap rim fixing leg screw hole 16 f; a platen fixing screw hole 16g is formed in a left side of the valve body 1 at a position corresponding to the platen 55, and the platen 55 is fixed to the platen fixing screw hole 16g by a platen fixing screw 552.

Referring to fig. 3, there is shown in fig. 3 a fire extinguishing agent transporting pipe 30 as the aforementioned fire extinguishing agent supplying source, the fire extinguishing agent transporting pipe 30 corresponding to the inflammable material 20, pipe joints 301 provided in the longitudinal direction of the fire extinguishing agent transporting pipe 30 at positions corresponding to the ignition point of the inflammable material 20 at intervals, and valve body external threads 16b at the lower end of the aforementioned valve body 1 of the present invention are mated with the pipe joints 301, and the expansion pipe 7 is transferred from the aforementioned expansion pipe registering frame 31 to the inflammable material 30.

The applicant needs to say that: the present invention is not limited to the connection form with the fire extinguishing agent tank 10 shown in fig. 1 and the fire extinguishing agent transporting conduit 30 shown in fig. 3, i.e., not limited to the manner of application and application described above.

The applicant describes the working process of the present invention with reference to fig. 1 and 2, because in the use state, the expansion tube 7 corresponds to the inflammable part, when an open fire occurs in the inflammable part, the heat radiation generated by the open fire gives the expansion tube 7, that is, the expansion tube 7 receives the radiation heat and the liquid in the expansion tube 7 expands, the expanded liquid enters the liquid induced expansion chamber 64 through the capillary tube 71, the expansion membrane 63 and the push rod disc 62 are forced to expand to the right in the direction of the cap chamber 612, the push rod disc 62 drives the push rod 52 to displace to the right, the push rod 52 pushes the valve core 53, the valve core 53 displaces to the right against the counterforce of the valve core spring 54, so that the valve core spring chamber 513, the upper diversion hole 16b and the lower diversion hole 16e are communicated, the fire extinguishing agent in the fire extinguishing agent tank 10 or the fire extinguishing agent delivery pipeline 30 sequentially enters the upper chamber 111 of the piston chamber through the fire extinguishing agent through the valve chamber 81, the valve chamber 13, the lower diversion hole 16e, the valve core spring chamber 513, the upper diversion hole 16d and the turndown hole 16j, the piston 2 is forced to move downwards, the piston 2 is driven by the piston 21 in the direction of the cap chamber 612, the reaction force of the valve return spring 9 is driven by the push rod 52 to displace to the fire extinguishing agent outlet valve core spring 121, and the fire extinguishing agent is led out of the fire extinguishing agent through the fire extinguishing agent injection nozzle 12 and the fire extinguishing agent injection nozzle 12 through the valve hole 121, and the fire extinguishing agent injection hole is sequentially opened to the fire extinguishing agent injection hole 121.

The present invention may be designed for one-time use, i.e., one-time use suitable for the connection with the fire extinguishing agent tank 10, or may be designed for repeated use, once the valve 211 is opened until the fire extinguishing agent in the fire extinguishing agent tank 10 is completely sprayed; the latter is a reuse case suitable for mating with the fire suppressant delivery conduit 30, specifically: when the temperature drops, the expansion membrane 63 resets and applies thrust to the valve core under the action of the valve core spring 54, the valve core 53 cuts off the channels of the valve core spring chamber 513, the upper diversion hole 16d and the lower diversion hole 16e, and at the same time, the valve 211 is pushed upwards under the action of the restoring force of the valve return spring 9, so that the valve 211 is in a closed state for the valve opening 121 of the fire extinguishing agent leading-out chamber, and at the moment, the piston 2 moves upwards along with the ascending of the piston rod 21.

In summary, the technical scheme provided by the invention overcomes the defects in the prior art, successfully completes the task of the invention, and faithfully honors the technical effects carried by the applicant in the technical effect column above.

Claims

1. The temperature-control automatic fire extinguishing device is characterized by comprising a valve body (1), wherein a piston cavity (11), a fire extinguishing agent leading-out cavity (12), a valve cavity (13) and a spring supporting seat cavity (14) are sequentially formed in the central position of the valve body (1) from top to bottom, a valve baffle (15) is formed between the piston cavity (11) and the fire extinguishing agent leading-out cavity (12), a piston rod sliding hole (151) is formed in the central position of the valve baffle (15), the upper part of the piston rod sliding hole (151) is communicated with the piston cavity (11), and the lower part of the piston rod sliding hole is communicated with the fire extinguishing agent leading-out cavity (12); the piston (2) is arranged in the piston cavity (11) and is in sealing fit with the cavity wall of the piston cavity, the piston (2) divides the piston cavity (11) into a piston cavity upper cavity (111) positioned above the piston (2) and a piston cavity lower cavity (112) positioned below the piston (2), a piston rod (21) is fixed at the central position of one side of the piston (2) facing the piston cavity lower cavity (112), the lower end of the piston rod (21) sequentially penetrates through the piston rod sliding hole (151) and the fire extinguishing agent leading-out cavity (12) to extend into the valve cavity (13), a valve (211) is fixed, and the valve (211) opens or closes a valve opening (121) of the fire extinguishing agent leading-out cavity (12); a valve cover (3) for closing the upper chamber (111) of the piston cavity, wherein the valve cover (3) is sealed and fixed with the top of the valve body (1); a fire extinguishing agent spraying mechanism (4), wherein the fire extinguishing agent spraying mechanism (4) is connected to the right side of the valve body (1) at a position corresponding to the fire extinguishing agent leading-out cavity (12) and is communicated with the fire extinguishing agent leading-out cavity (12); a piston operation control mechanism (5) for driving the piston (2) to displace downward so as to release the valve (211) from closing the valve opening (121) of the fire extinguishing agent discharging chamber, the piston operation control mechanism (5) being disposed on the left side of the valve body (1) and communicating with the upper chamber (111) of the piston chamber and the valve chamber (13); a temperature-sensitive agent-induced expansion mechanism (6) for actuating the piston operation control mechanism (5), the temperature-sensitive agent-induced expansion mechanism (6) being fixed to the left side of the valve body (1) at a position corresponding to the piston operation control mechanism (5); a temperature induced expansion pipe (7), wherein the temperature induced expansion pipe (7) is connected with the temperature sensing agent induced expansion mechanism (6) through a capillary tube (71); a spring supporting seat (8) and a valve return spring (9), the spring supporting seat (8) is connected with the valve body (1) at a position corresponding to the spring supporting seat cavity (14), a fire extinguishing agent through cavity (81) penetrating from the upper part to the lower part of the spring supporting seat (8) is formed at the central position of the spring supporting seat (8), the fire extinguishing agent through cavity (81) is communicated with the valve cavity (13), a valve return spring supporting flange (811) is formed on the inner wall of the fire extinguishing agent through cavity (81) around the periphery of the inner wall in a spaced state, the upper end of the valve return spring (9) is positioned in the valve cavity (13) and supported on the valve (211), and the lower end of the valve return spring is positioned in the fire extinguishing agent through cavity (81) and supported on the valve return spring supporting flange (811); a control valve body cavity (17) is formed at the left side of the valve body (1) and at the position corresponding to the piston operation control mechanism (5), an upper diversion hole (16 d) and a lower diversion hole (16 e) are formed at the position corresponding to the control valve body cavity (17), the upper part of the upper diversion hole (16 d) is communicated with the upper cavity (111) of the piston cavity, the lower part of the upper diversion hole is communicated with the control valve body cavity (17), the upper part of the lower diversion hole (16 e) is communicated with the control valve body cavity (17), the lower part of the lower diversion hole is communicated with the valve cavity (13), and the temperature sensing agent induced expansion mechanism (6) is covered outside the piston operation control mechanism (5); the piston work control mechanism (5) comprises a control valve body (51), a push rod (52), a valve core (53), a valve core spring (54) and a pressing plate (55), wherein the middle part and the right end of the control valve body (51) are placed in the control valve body cavity (17), the left end of the control valve body (51) extends out of the control valve body cavity (17), a push rod hole (511) penetrating from the left end to the right end of the control valve body (51) is formed in the central position of the control valve body (51), a first through hole I (512) communicated with the push rod hole (511) is formed in the middle part of the control valve body (51), the position of the first through hole I (512) corresponds to the upper diversion hole (16 d) and is communicated with the upper diversion hole (16 d), a valve core spring cavity (513) is formed in the central position of the right end part of the control valve body (51), a second through hole II (31) is formed in the cavity wall of the control valve body (51) and is formed in the cavity wall of the valve core spring cavity (513), the second through hole I (512) is communicated with the lower diversion hole (16 d) and is arranged in the valve core (16 e) corresponding to the lower diversion hole (16 d) and the valve core (54) at the position of the valve core (54) and the lower diversion hole (54) is arranged in the valve core (54), the left end of the valve core spring (54) is supported on the valve core (53), the right end of the valve core spring is supported on the cavity bottom wall of the control valve body cavity (17), the right end of the push rod (52) is in sliding fit with the push rod hole (511), the right end face of the push rod (52) is in contact with the valve core (53), the left end of the push rod (52) extends out of the push rod hole (511) and is connected with the temperature sensing agent induced expansion mechanism (6), the pressing plate (55) is fixed with the left side of the valve body (1) at a position corresponding to the left end of the control valve body (51), a valve body abdication hole (551) is formed in the center position of the pressing plate (55), and the left end of the control valve body (51) is detected into the valve body abdication hole (551); an expansion pipe registering frame (31) is arranged on the valve cover (3), and the temperature-induced expansion pipe (7) connected with the temperature-sensitive agent induced expansion mechanism (6) through the capillary tube (71) is registered on the expansion pipe registering frame (31); a pair of control valve body sealing rings (514) are sleeved in the middle of the control valve body (51), and the pair of control valve body sealing rings (514) are in sealing fit with the control valve body cavity (17); the temperature-sensitive agent-induced expansion mechanism (6) comprises a push rod disc shield cap (61), a push rod disc (62) and an expansion membrane (63), wherein a cap rim (611) of the push rod disc shield cap (61) is fixed with the valve body (1) at a position corresponding to the left end of the control valve body (51), the push rod disc shield cap (61) is provided with a cap cavity (612), the left end of the control valve body (51) and the pressure plate (55) are positioned in the cap cavity (612), the expansion membrane (63) is arranged in the cap cavity (612) and the peripheral edge part of the expansion membrane (63) is limited by an expansion membrane edge limiting ring (631), the expansion membrane edge limiting ring (631) is fixed with the cavity wall of the cap cavity (612) at a position corresponding to the right side of the expansion membrane (63), the space between the left side of the expansion membrane (63) and a cap top (613) of the push rod disc shield cap (61) is configured as a liquid-induced expansion cavity (64), the push rod disc (62) is connected with the central capillary tube (64) at the position (71) of the left side of the expansion membrane (63) and is fixed with the central position (71), the left end of the push rod (52) is inserted into the cap cavity (612) and is fixed with the central position of the push rod disc (62) after passing through the central part of the expansion membrane (63); a vent hole (16 a) is formed in the valve body (1) and at a position corresponding to the lower piston cavity chamber (112), and the vent hole (16 a) enables the lower piston cavity chamber (112) to be communicated with the outside; an external thread (16 b) of the valve body for matching with the fire extinguishing agent supply source is formed on the outer wall of the lower part of the valve body (1) and at a position corresponding to the spring supporting seat cavity (14); the inner thread (141) of the cavity wall of the spring supporting seat cavity (14) is formed on the cavity wall of the spring supporting seat cavity, the outer wall of the upper end of the spring supporting seat (8) is formed with the outer thread (82) of the spring supporting seat, and the outer thread (82) of the spring supporting seat is in threaded fit with the inner thread (141) of the cavity wall of the spring supporting seat.

2. The automatic fire extinguishing device according to claim 1, wherein the fire extinguishing agent supply source is a fire extinguishing agent tank or a fire extinguishing agent conveying pipeline.

3. A temperature-controlled automatic fire extinguishing apparatus according to claim 1, characterized in that a nozzle holder connection screw hole (16 c) is provided on the right side of the valve body (1) and at a position corresponding to the fire extinguishing agent spraying mechanism (4), the nozzle holder connection screw hole (16 c) communicates with the fire extinguishing agent discharging chamber (12), and the fire extinguishing agent spraying mechanism (4) is connected with the nozzle holder connection screw hole (16 c).

4. A temperature-controlled automatic fire extinguishing apparatus according to claim 3, characterized in that the fire extinguishing agent spraying mechanism (4) comprises a nozzle holder (41) and a nozzle (42), a nozzle holder external screw thread (411) is formed on the outer wall of the left end of the nozzle holder (41), the nozzle holder external screw thread (411) is in screw connection with the nozzle holder connection screw hole (16 c), the right end of the nozzle holder (41) protrudes out of the nozzle holder connection screw hole (16 c) and is formed with a nozzle connector (413), a nozzle holder central hole (412) of the nozzle holder (41) is communicated with the fire extinguishing agent leading-out cavity (12), the nozzle (42) is formed with the nozzle connector (413) as a whole, and the spraying cavity (421) of the nozzle (42) is communicated with the nozzle holder central hole (412).

5. A temperature-controlled automatic fire extinguishing device according to claim 1, characterized in that a cap rim fixing foot screw hole (16 f) is provided on the left side of the valve body (1) at a position corresponding to the cap rim (611) at intervals, a cap rim fixing foot (6111) is provided on the cap rim (611) and around the periphery of the cap rim (611) at intervals, a cap rim fixing foot screw (61111) is provided on the cap rim fixing foot (6111), and the cap rim fixing foot screw (61111) is fixed with the cap rim fixing foot screw hole (16 f); a pressing plate fixing screw hole (16 g) is formed in the left side of the valve body (1) and at a position corresponding to the pressing plate (55), and the pressing plate (55) is fixed with the pressing plate fixing screw hole (16 g) through a pressing plate fixing screw (552).