Miniature automatic fire extinguishing device

Abstract

The utility model provides a miniature automatic fire extinguishing device which is provided with a shell, the left end and the right end of the shell form a relative closed space through the connector and the sealing body I in the connector. A fire extinguishing agent is arranged in the closed space; a sealing body I and a nozzle are mounted in a connector at the tail end of the shell; a sealing body I and a plug are arranged in a connector at the front end of the shell; the sealing body I is pressed at the air hole in the rear end of the plug through the plug; a temperature sensing signal feedback device, an electric triggering device, a gas generating agent, a shock insulator and a sealing body II are respectively mounted in an inner cavity of the plug; and the air hole at the front end of the plug is sealed through sealant. According to the utility model, the timely and effective fire prevention and control response speed of a protection area is improved, and the fire prevention and control requirement under the unattended condition is met; the structural design is simple and reasonable; the size is small, and installation in various narrow spaces is facilitated; daily non-pressure storage is achieved, maintenance is not needed, and popularization is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of fire extinguishing devices in safety protection products for production and life, and specifically relates to a miniature automatic fire extinguishing device. Background Art

[0002] There is a great demand for fire-fighting facilities in all fields of national economic production and life, especially in small space structures such as battery boxes, electrical cabinets, communication data base stations, charging boxes, charging cabinets, etc., all of which require perfluorohexanone non-pressure storage miniaturized gas fire extinguishing devices to meet the fire protection needs of combining active firefighting with automatic firefighting; and fire-fighting devices that do not damage electrical equipment and leave no residue after extinguishing the fire. Through market research, it was found that there is no suitable fire-fighting equipment at present, and the following technical solutions are proposed. Utility Model Content

[0003] The technical problem solved by the utility model is: to provide a miniature automatic fire extinguishing device to solve the problem of how to achieve non-pressure storage and miniaturized design of the fire extinguishing device, while improving the timely and effective fire prevention and control response speed of the protection area and the fire prevention and control needs in unmanned situations.

[0004] The technical solution adopted by the utility model is as follows: a miniature automatic fire extinguishing device comprises a shell; the left and right ends of the shell respectively form a relatively closed space through a joint and a sealing body I in the joint; a fire extinguishing agent is arranged in the closed space; a sealing body I and a nozzle are installed in a joint at the end of the shell; a sealing body I and a plug are installed in a joint at the front end of the shell; and the sealing body I is pressed tightly at the air hole at the rear end of the plug through the plug; a temperature sensing signal feedback device, an electric initiation device, a gas generating agent, a spacer, and a sealing body II are respectively installed in the inner cavity of the plug; and the air hole at the front end of the plug is sealed by a sealant.

[0005] In the above technical solution, further: a core is also provided in the shell.

[0006] In the above technical solution, further: the cross-sectional shape of the shell is one of circular, rectangular, square, and polygonal; the shell is made of any non-metallic material such as nylon, PE, and PP; or the shell is made of any metal material such as aluminum alloy, stainless steel, and carbon steel.

[0007] In the above technical scheme, further: the material and shape of the joint are adapted to the material and shape of the shell; the joint is connected to the shell by interference fit through one of the pagoda structure, threaded structure, groove structure, and clamping structure; an axial channel is formed in the joint; a large-diameter internal threaded cavity is formed at the rear end of the axial channel; the internal threaded cavity is used to connect the plug or the nozzle respectively.

[0008] In the above technical solution, further: it also includes a compression sleeve; the cross-sectional shape of the compression sleeve matches the cross-sectional shape of the shell; the outer contour of the compression sleeve is flush with the outer contour of the joint; the compression sleeve is made of metal or non-metallic material; the compression sleeve seals and fixes the shell and the joint into one.

[0009] In the above technical solution, further: the inner cavity of the plug is composed of a small cylindrical inner cavity, a conical inner cavity, and a large cylindrical inner cavity from front to back; the outside of the plug in the large cylindrical inner cavity is provided with a plug external thread; the plug is connected to the joint internal thread through the plug external thread.

[0010] In the above technical scheme, further: a temperature sensing signal feedback device, an electric initiation device, a gas generating agent, and a spacer are installed in the inner cavity of the large cylinder; a sealing body II is installed in the inner cavity of the cone; a through hole is formed in the center of the spacer sealing body II; the through hole in the center of the spacer is used for the gas generated by the gas generating agent to pass through, and the through hole in the center of the sealing body II is used for the lead wires of the temperature sensing signal feedback device and the electric initiation device to pass through; the inner cavity of the small cylinder is also used for the lead wires of the temperature sensing signal feedback device and the electric initiation device to pass through; and the inner cavity of the small cylinder is filled with sealant; the sealant realizes the sealing of the plug.

[0011] In the above technical solution, further: the sealing body II is made of high temperature resistant silicone rubber, its shape is a truncated cone structure, and a through hole is formed in the middle; the through hole is used for the lead wires of the temperature sensing signal feedback device and the electric triggering device to pass through.

[0012] In the above technical scheme, further: the sealing body I is in the shape of a disc, and is made of a material selected from the group consisting of PE, tetrafluoroethylene, and PP; or the sealing body I is made of a material selected from the group consisting of aluminum, copper, nickel, and stainless steel; when the sealing body I is made of a metal material, cracks are prefabricated on the surface of the sealing body I; the cracks are used to ensure that the sealing body I can crack under a certain pressure, thereby ensuring the passage of incoming gas and fire extinguishing agent; the sealing body I is installed in the joint and is pressed and sealed by a nozzle or a plug.

[0013] In the above technical scheme, further: the nozzle has a cylindrical inner cavity; a plurality of axial small holes are formed at the end of the cylindrical inner cavity; or a plurality of radial small holes are formed at the end of the cylindrical inner cavity, or a plurality of axial small holes and a plurality of radial small holes are formed at the end of the cylindrical inner cavity; the diameter and number of the small holes are determined according to actual needs; an external nozzle thread is formed on the outside of the front end of the nozzle; the nozzle is connected to the joint through the external nozzle thread.

[0014] The advantages of this utility model compared with the prior art:

[0015] The utility model has a simple and reasonable structural design; the volume is small, and it is convenient to install in various narrow spaces; the non-pressure storage design enables the device to be stored without pressure on a daily basis, and basically requires no maintenance; the electric initiator, the gas generating agent and the shell cooperate with each other to realize the fire protection demand of combining active fire fighting with automatic fire fighting, and is convenient for the needs of different fire protection scenarios; when the perfluorohexanone fire extinguishing agent is used, there is no damage to the electrical equipment, and no residue is left after the fire is extinguished. Therefore, it is a miniature gas automatic fire extinguishing device with broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the plug structure;

[0018] Figure 3 This is a schematic diagram of the structure of an embodiment of a nozzle;

[0019] Figure 4 This is a schematic diagram of the structure in which the nozzle is only provided with an axial small hole;

[0020] Figure 5 for Figure 4 Nozzle cross-section view;

[0021] Figure 6 A schematic diagram of the structure of an embodiment of connecting a connector to a housing;

[0022] Figure 7 It is a structural schematic diagram of another embodiment of connecting the joint and the housing;

[0023] In the figure: 1-nozzle, 101-cylindrical inner cavity, 102-small hole, 103-nozzle external thread; 2-connector, 201-axial channel, 202-internal thread cavity; 3-sealing body I, 4-pressing sleeve, 5-fire extinguishing agent, 6-shell, 7-core, 8-temperature sensing signal feedback device, 9-electric initiation device, 10-gas generating agent, 11-spacer, 12-sealing body II, 13-plug, 1301-small cylindrical inner cavity, 1302-conical inner cavity, 1303-large cylindrical inner cavity, 1304-plug external thread, 14-sealant, 15-hoop. DETAILED DESCRIPTION

[0024] The following will be combined with the attached embodiment of the utility model Figure 1-6 , clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] (like Figure 1 A miniature automatic fire extinguishing device is shown in the figure, which has a housing 6; the left and right ends of the housing 6 respectively form a relatively closed space through a joint 2 and a sealing body Ⅰ3 in the joint 2. A fire extinguishing agent 5 is arranged in the closed space. The fire extinguishing agent can be a perfluorohexanone fire extinguishing agent.

[0026] The sealing body I3 and the nozzle 1 are installed in the terminal joint 2 of the shell 6. The sealing body I3 and the plug 13 are installed in the front end joint 2 of the shell 6. The sealing body I3 is pressed against the air hole at the rear end of the plug 13 through the plug 13; the inner cavity of the plug 13 is respectively installed with a temperature sensing signal feedback device 8, an electric initiation device 9, a gas generating agent 10, a spacer 11, and a sealing body II 12; and the air hole at the front end of the plug 13 is sealed by a sealant 14.

[0027] In the above embodiment, further: a core 7 is further provided in the housing 6. The core 7 is made of corrosion-resistant materials such as silica gel, and the core 7 acts as a piston. When the device on which the core 7 is installed is working, all the fire extinguishing agent in the device can be squeezed out.

[0028] In the above embodiment, further: the cross-sectional shape of the housing 6 is one of circular, rectangular, square, and polygonal. The housing 6 is made of any non-metallic material of nylon, PE, and PP; it is light and economical. In addition, the housing 6 is made of any metal material of aluminum alloy, stainless steel, and carbon steel, which also meets the light weight requirement.

[0029] In the above embodiment, further: the material and shape of the joint 2 are adapted to the material and shape of the housing 6. The joint 2 is provided with a pagoda structure, a threaded structure (such as Figure 7 As shown), groove structure (as Figure 6 As shown), one of the clamping structures is connected to the housing 6 by interference fit. Figure 6 The groove structure shown is provided with a hoop member 15 when connected.

[0030] On this basis: the connector 2 is provided with an axial channel 201; the rear end of the axial channel 201 is provided with a large diameter internal thread cavity 202; the internal thread cavity 202 is used to connect the plug 13 or the nozzle 1 (see again Figure 1 ). Threaded assembly structure, simple structure, easy assembly and reliable connection.

[0031] In the above embodiment, further: a pressing sleeve 4 is also included; the pressing sleeve 4 is added to improve the connection reliability. Figure 1The cross-sectional shape of the compression sleeve 4 matches the specific cross-sectional shape of the housing 6 described above. The outer contour of the compression sleeve 4 is flush with the outer contour of the connector 2. The compression sleeve 4 is made of metal or non-metallic material; the compression sleeve 4 seals and reinforces the housing 6 and the connector 2 as a whole.

[0032] (like Figure 2 In the above embodiment, further: the inner cavity of the plug 13 is composed of a small cylindrical inner cavity 1301, a conical inner cavity 1302, and a large cylindrical inner cavity 1303 from front to back. The plug 13 of the large cylindrical inner cavity 1303 is provided with a plug outer thread 1304 on the outside; the plug 13 is connected to the inner thread of the connector 2 through the plug outer thread 1304.

[0033] In the above embodiment, further: the inner cavity 1303 of the large cylinder is equipped with a temperature sensing signal feedback device 8, an electric triggering device 9, a gas generating agent 10, a spacer 11 (combined with Figure 1 ).

[0034] The sealing body II 12 is installed in the inner cavity 1302 of the cone.

[0035] The spacer 11 and the sealing body II 12 are provided with through holes in their centers. The through hole in the center of the spacer 11 is used for the gas generated by the gas generating agent to pass through, and the through hole in the center of the sealing body II 12 is used for the leads of the temperature sensing signal feedback device 8 and the electric initiation device 9 to pass through.

[0036] The inner cavity 1301 of the small cylinder is also used for the leads of the temperature sensing signal feedback device 8 and the electric triggering device 9 to pass through; and the inner cavity 1301 of the small cylinder is filled with sealant 14; the sealant 14 realizes the sealing of the plug 13.

[0037] In the above embodiment, further: the sealing body II 12 is made of high temperature resistant silicone rubber, has a frustum structure and has a through hole in the middle; the through hole is used for the lead wires of the temperature sensing signal feedback device 8 and the electric triggering device 9 to pass through.

[0038] (like Figure 1 As shown in the above embodiment, further: the sealing body I3 is in the shape of a disc, and the sealing body I3 is made of a material selected from PE, tetrafluoroethylene, and PP; it is economical and practical, and has reliable sealing.

[0039] Or the sealing body I3 is made of one of aluminum, copper, nickel, and stainless steel; when the sealing body I3 is made of metal material, cracks are prefabricated on the surface of the sealing body I3; the cracks are used to ensure that the sealing body I3 can crack under a certain pressure, thereby ensuring the passage of incoming gas and fire extinguishing agent 5; the sealing body I3 is installed in the joint 2 and is compressed and sealed by the nozzle 1 or the plug 13.

[0040] (like Figure 3 , Figure 4 As shown) in the above embodiment, further: the nozzle 1 has a cylindrical inner cavity 101.

[0041] Embodiment 1: A plurality of axial small holes 102 are formed at the end of the inner cavity 101 of the cylinder, and the plurality of axial small holes 102 are evenly distributed or concentratedly distributed.

[0042] Embodiment 2: A plurality of radial small holes 102 are formed at the end of the inner cavity 101 of the cylinder, and the plurality of radial small holes 102 are evenly distributed or concentratedly distributed.

[0043] Embodiment 3: The end of the cylindrical inner cavity 101 is provided with a plurality of axial small holes 102 and a plurality of radial small holes 102, and the small holes 102 are evenly distributed or concentratedly distributed.

[0044] The diameter and number of the small holes 102 are determined according to actual needs.

[0045] The front end of the nozzle 1 is provided with an external nozzle thread 103 ; the nozzle 1 is connected to the joint 2 via the external nozzle thread 103 .

[0046] From the above description, it can be found that: the utility model has a simple and reasonable structural design; it is small in size and easy to install in various narrow spaces; the non-pressure storage design allows the device to be stored without pressure on a daily basis and basically requires no maintenance; the electric initiator, the gas generating agent and the shell cooperate with each other to achieve the fire protection needs of combining active fire fighting with automatic fire fighting, which is convenient for the needs of different fire protection scenarios; when perfluorohexanone fire extinguishing agent is used, there is no damage to electrical equipment and no residue after fire extinguishing. It is a miniature gas automatic fire extinguishing device with broad application prospects.

[0047] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A miniature automatic fire extinguishing device, characterized in that: The invention comprises a shell (6); the left and right ends of the shell (6) respectively form a relatively closed space through a joint (2) and a sealing body I (3) in the joint (2); a fire extinguishing agent (5) is arranged in the closed space; the sealing body I (3) and the nozzle (1) are installed in the end joint (2) of the shell (6); the sealing body I (3) and the plug (13) are installed in the front joint (2) of the shell (6); and the sealing body I (3) is pressed against the air hole at the rear end of the plug (13) through the plug (13); the inner cavity of the plug (13) is respectively installed with a temperature sensing signal feedback device (8), an electric triggering device (9), a gas generating agent (10), a spacer (11), and a sealing body II (12); and the air hole at the front end of the plug (13) is sealed by a sealant (14).

2. The miniature automatic fire extinguishing device according to claim 1, characterized in that: A core (7) is also provided in the shell (6).

3. The miniature automatic fire extinguishing device according to claim 1 or 2, characterized in that: The cross-sectional shape of the shell (6) is one of circular, rectangular, square and polygonal; the shell (6) is made of any non-metallic material such as nylon, PE and PP; or the shell (6) is made of any metal material such as aluminum alloy, stainless steel and carbon steel.

4. The miniature automatic fire extinguishing device according to claim 1 is characterized in that: The material and shape of the joint (2) are adapted to the material and shape of the shell (6); the joint (2) is connected to the shell (6) by interference fit through one of a pagoda structure, a threaded structure, a groove structure, and a clamping structure; an axial channel (201) is formed inside the joint (2); a large-diameter internal thread cavity (202) is formed at the rear end of the axial channel (201); the internal thread cavity (202) is used to connect the plug (13) or the nozzle (1), respectively.

5. The miniature automatic fire extinguishing device according to claim 1 is characterized in that: It also comprises a pressing sleeve (4); the cross-sectional shape of the pressing sleeve (4) matches the cross-sectional shape of the shell (6); the outer contour of the pressing sleeve (4) is flush with the outer contour of the joint (2); the pressing sleeve (4) is made of metal or non-metallic material; the pressing sleeve (4) seals and fixes the shell (6) and the joint (2) into one.

6. The miniature automatic fire extinguishing device according to claim 1 or 4, characterized in that: The inner cavity of the plug (13) is composed of a small cylindrical inner cavity (1301), a conical inner cavity (1302), and a large cylindrical inner cavity (1303) from front to back; the plug (13) in the large cylindrical inner cavity (1303) is provided with a plug external thread (1304) on the outside; the plug (13) is connected to the internal thread of the joint (2) via the plug external thread (1304).

7. The miniature automatic fire extinguishing device according to claim 6, characterized in that: The inner cavity (1303) of the large cylinder is installed with a temperature sensing signal feedback device (8), an electric triggering device (9), a gas generating agent (10), and a spacer (11); the inner cavity (1302) of the cone is installed with a sealing body II (12); the center of the spacer (11) and the sealing body II (12) are provided with a through hole; the through hole in the center of the spacer (11) is used for the gas generated by the gas generating agent (10) to pass through, and the through hole in the center of the sealing body II (12) is used for the lead wires of the temperature sensing signal feedback device (8) and the electric triggering device (9) to pass through; the inner cavity (1301) of the small cylinder is also used for the lead wires of the temperature sensing signal feedback device (8) and the electric triggering device (9) to pass through; and the inner cavity (1301) of the small cylinder is filled with a sealant (14); the sealant (14) realizes the sealing of the plug (13).

8. The miniature automatic fire extinguishing device according to claim 1 or 7, characterized in that: The sealing body II (12) is made of high temperature resistant silicone rubber and has a truncated cone structure with a through hole in the middle; the through hole is used for the lead wires of the temperature sensing signal feedback device (8) and the electric triggering device (9) to pass through.

9. The miniature automatic fire extinguishing device according to claim 1, characterized in that: The sealing body I (3) is in the shape of a disc and is made of a material selected from the group consisting of PE, tetrafluoroethylene, and PP; or the sealing body I (3) is made of a material selected from the group consisting of aluminum, copper, nickel, and stainless steel; when the sealing body I (3) is made of a metal material, cracks are prefabricated on the surface of the sealing body I (3); the cracks are used to ensure that the sealing body I (3) can crack under a certain pressure, thereby ensuring that the incoming gas and fire extinguishing agent (5) can pass through; the sealing body I (3) is installed in the joint (2) and is compressed and sealed by a nozzle (1) or a plug (13).

10. The miniature automatic fire extinguishing device according to claim 1, 4 or 9, characterized in that: The nozzle (1) has a cylindrical inner cavity (101); a plurality of axial small holes (102) are formed at the end of the cylindrical inner cavity (101); or a plurality of radial small holes (102) are formed at the end of the cylindrical inner cavity (101); or a plurality of axial small holes (102) and a plurality of radial small holes (102) are formed at the end of the cylindrical inner cavity (101); the diameter and number of the small holes (102) are determined according to actual needs; a nozzle external thread (103) is formed on the outside of the front end of the nozzle (1); and the nozzle (1) is connected to the joint (2) via the nozzle external thread (103).

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