Anti-blocking structure of aerosol fire extinguishing device

Abstract

The utility model relates to the technical field of fire extinguishing devices, and discloses an anti-blocking structure of an aerosol fire extinguishing device, which comprises an outer shell and a semi-annular groove, and the outer side of the semi-annular groove is connected with an outer connecting plate; scraping plates are additionally arranged on the left side and the right side of the separation net, and the inner wall of the outer shell is connected with an annular connecting plate; the round connecting plate is connected with the bottom of the inner cavity of the lower connecting cover, and the outer side of the lower connecting cover is connected with a connecting handle. According to the anti-blocking structure of the aerosol fire extinguishing device, an aerosol fire extinguishing generating agent is used, fire extinguishing particles are carried to move through a separation net, the separation net intercepts the large fire extinguishing particles, after the aerosol fire extinguishing generating agent is used and consumed, an outer connecting plate rotates along a semi-annular groove, and an annular connecting plate drives a scraping plate to rotate on the outer surface of the separation net; and the scraping plate scrapes large fire extinguishing particles intercepted on the partition net, the large fire extinguishing particles fall to the top of the round connecting plate, the connecting handle drives the round connecting plate to rotate, and the fire extinguishing particles rotate to the outside of the lower connecting cover.

Description

Technical Field

[0001] This utility model relates to the field of fire extinguishing device technology, specifically to an anti-clogging structure for an aerosol fire extinguishing device. Background Technology

[0002] Aerosol fire extinguishing devices are equipment that extinguish fires using aerosol extinguishing agents. They release a large number of tiny extinguishing particles at the fire scene, forming a high-density aerosol barrier that rapidly reduces flame temperature, isolates oxygen, and inhibits the combustion chain reaction, thus extinguishing the fire. Aerosol fire extinguishing devices can release a large number of extinguishing particles in a short time, rapidly reducing flame temperature and isolating oxygen, thereby achieving rapid fire extinguishing. Aerosol fire extinguishing devices are effective against various types of fires, including electrical fires, solid surface fires, and liquid fires. The extinguishing principle of thermal aerosols mainly includes negative catalysis and disruption of the combustion reaction chain. Specifically, the solid extinguishing agent in a thermal aerosol fire extinguishing device rapidly decomposes under the action of a gas-generating agent, releasing a large amount of highly effective extinguishing substances, such as N2, a small amount of CO2, and metal salt solid particles. These substances can quickly fill the protected space, achieving rapid fire extinguishing through heat absorption and cooling, chemical inhibition, and reduction of oxygen concentration.

[0003] Traditional aerosol fire extinguishing devices, during long-term use, often experience blockages due to the varying sizes of the extinguishing particles within the aerosol extinguishing agent. As the aerosol extinguishing agent moves along the discharge channel, larger particles accumulate on the inner wall of the channel due to gravity or flow resistance, causing blockages and affecting the device's normal operation. To address this issue, some aerosol fire extinguishing devices employ anti-clogging structures by adding a mesh screen. When extinguishing particles pass through the mesh screen, the screen intercepts larger particles, preventing blockages and ensuring normal device operation. However, this method, relying solely on the mesh screen, suffers from blockages over time as larger particles adhere to it, making cleaning difficult. Therefore, this paper proposes an anti-clogging structure for aerosol fire extinguishing devices. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides an anti-clogging structure for aerosol fire extinguishing devices, thereby solving the aforementioned technical problems that not only cause clogging of the mesh but also make cleaning difficult.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: an anti-clogging structure for an aerosol fire extinguishing device, comprising:

[0008] The outer shell, and the upper and lower connecting covers provided on the top and bottom of the outer shell, and a semi-annular groove is provided on the outer right side of the outer shell, and an outer connecting plate is rotatably connected to the inner cavity of the semi-annular groove.

[0009] A cooling tank is located in the center of the inner cavity of the outer shell, and a piston ring is fitted in the center of the cooling tank. A partition net is added to the bottom of the cooling tank, and the partition net is tapered in shape. Scrapers are added to both the left and right sides of the partition net. An annular connecting plate is rotatably connected to the inner wall of the outer shell. The annular connecting plate is connected to the scraper, and the outer connecting plate is connected to the annular connecting plate through a semi-annular groove.

[0010] A circular connecting plate is rotatably connected to the bottom of the inner cavity of the lower connecting cover, and a connecting handle is rotatably connected to the outer side of the lower connecting cover. The end of the connecting handle passes through the outer wall of the lower connecting cover and connects to the circular connecting plate. When the aerosol extinguishing agent inside the outer shell is used, the aerosol extinguishing agent carries the extinguishing particles and moves upward along the cooling tank through the mesh. The mesh intercepts larger extinguishing particles. After the aerosol extinguishing agent contacts the bottom of the piston ring, it enters the cooling tank and rises, allowing the aerosol extinguishing agent to perform the extinguishing operation through the spray device of the upper connecting cover. When the aerosol extinguishing agent inside the outer shell is used up, the outer connecting plate rotates along the semi-annular groove on the outer shell. The annular connecting plate drives the scraper to rotate on the outer surface of the mesh. The scraper removes larger fire extinguishing particles intercepted on the mesh, causing them to fall to the top of the circular connecting plate. The connecting handle then rotates the circular connecting plate within the lower connecting cover, moving the fire extinguishing particles from the top of the circular connecting plate to the outside of the lower connecting cover for cleaning. This process not only allows for timely cleaning, preventing mesh blockage, but also facilitates the cleaning operation. Furthermore, it allows the scraped fire extinguishing particles to be easily cleared from the outer casing, preventing their accumulation inside the casing and potential hindrance.

[0011] Preferably, the upper and lower parts of the outer casing are provided with annular grooves, and cylindrical holes are provided on both the left and right sides of the inner wall of the annular grooves. The outer casing can be connected to the upper and lower connecting covers through the annular grooves.

[0012] Preferably, each of the cylindrical holes in the annular groove is equipped with a compression spring, and each compression spring has a semi-circular locking head at its end. The compression spring drives the semi-circular locking head to move within the annular groove, connecting the semi-circular locking head to the corresponding structure.

[0013] Preferably, annular conical plates are installed at the bottom of the upper connecting cover and the top of the lower connecting cover, and the positions of the annular conical plates and the annular grooves correspond. When the upper and lower connecting covers are connected to the outer casing, the annular conical plates are inserted into the interior of the annular grooves. Since the part of the annular conical plate that first enters the annular grooves is tapered, it can drive the semi-circular chuck to retract into the cylindrical hole and compress the compression spring.

[0014] Preferably, the outer surface of the annular cone plate is provided with an annular groove at its center, and the annular groove corresponds to the position of the semi-circular clamping head. Guide grooves are uniformly provided at the bottom of the inner cavity of the annular groove, and arc-shaped convex plates are installed in the inner cavity of the guide groove. After the annular cone plate is fully inserted into the annular groove, the semi-circular chuck is reset under the action of the compression spring and inserted into the annular slot for connection, thus ensuring the stability of the connection between the upper and lower connecting covers and the outer shell. When the upper and lower connecting covers are separated from the outer shell, the upper and lower connecting covers are rotated on the outer shell first. The annular cone plate rotates with the upper and lower connecting covers, so that the guide groove aligns with the position of the semi-circular chuck. When the upper and lower connecting covers are pulled outward, the arc-shaped convex plate drives the semi-circular chuck to retract into the cylindrical hole on the guide groove, compressing the compression spring and causing the annular cone plate to be pulled out of the annular groove. This not only ensures the stability of the connection between the upper and lower connecting covers and the outer shell, but also facilitates disassembly and assembly. At the same time, the friction between the upper and lower connecting covers and the outer shell can be increased by adding washers, etc., to prevent the upper and lower connecting covers from rotating on the outer shell due to vibration or other factors.

[0015] Preferably, the bottom of the lower connecting cover is rotatably connected to connecting seats on all four sides, and an O-ring is added between the lower connecting cover and the connecting seats. A locking post is installed on the back of each connecting seat, and the locking post fits tightly against the bottom of the circular connecting plate. An anti-slip handle is installed at the center of the bottom of each connecting seat. The connecting seats can be rotated on the lower connecting cover via the anti-slip handle, and the locking posts rotate in the same direction as the connecting seats, thereby controlling the engagement and disengagement of the locking posts and the circular connecting plate. Simultaneously, the O-rings prevent the connecting seats from rotating on the lower connecting cover due to vibration or other factors, thus ensuring connection stability.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides an anti-clogging structure for an aerosol fire extinguishing device, which has the following beneficial effects:

[0018] The anti-clogging structure of this aerosol fire extinguishing device works by using the aerosol fire extinguishing agent inside the outer shell. The aerosol fire extinguishing agent carries fire extinguishing particles upwards through a mesh screen along the cooling tank. The mesh screen intercepts larger fire extinguishing particles. After contacting the bottom of the piston rings, the aerosol fire extinguishing agent enters the cooling tank and rises, allowing it to be ejected through the upper connecting cover for fire extinguishing. When the aerosol fire extinguishing agent inside the outer shell is depleted, the outer connecting plate rotates along a semi-annular groove on the outer shell, and the annular connecting plate, driven by the outer connecting plate, scrapes... The plate rotates on the outer surface of the mesh, causing the scraper to remove larger fire extinguishing particles intercepted on the mesh. These larger fire extinguishing particles fall to the top of the circular connecting plate and rotate within the lower connecting cover via a connecting handle. This causes the fire extinguishing particles at the top of the circular connecting plate to rotate to the outside of the lower connecting cover for cleaning. This not only allows for timely cleaning and prevents the mesh from becoming clogged, but also facilitates the cleaning operation. Furthermore, it makes it easy to remove the scraped fire extinguishing particles to the outside of the outer shell, preventing the accumulation of fire extinguishing particles inside the outer shell from causing problems. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the overall separable structure of this utility model;

[0021] Figure 3 This is a schematic cross-sectional view of the outer shell of this utility model;

[0022] Figure 4 This is a schematic diagram of the upper cover structure of this utility model;

[0023] Figure 5 This is a schematic cross-sectional view of the lower connecting cover of this utility model;

[0024] Figure 6 This is a schematic diagram of the compression spring and its connection structure according to the present invention.

[0025] In the diagram: 1. Outer shell; 2. Upper connecting cover; 3. Lower connecting cover; 4. Semi-annular groove; 5. Outer connecting plate; 6. Cooling tank; 7. Piston ring; 8. Partition mesh; 9. Scraper; 10. Annular connecting plate; 11. Annular groove; 12. Compression spring; 13. Semi-circular clamp; 14. Annular cone plate; 15. Annular groove; 16. Arc-shaped convex plate; 17. Circular connecting plate; 18. Connecting handle; 19. Connecting seat; 20. Clamping post. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] This utility model provides a technical solution: an anti-clogging structure for an aerosol fire extinguishing device, including: (See details) Figure 1 , Figure 2 , Figure 3 , Figure 5 The outer shell 1, and the upper connecting cover 2 and the lower connecting cover 3 provided on the top and bottom of the outer shell 1, and the outer right side of the outer shell 1 is provided with a semi-annular groove 4, and the inner cavity of the semi-annular groove 4 is rotatably connected to an outer connecting plate 5.

[0028] Cooling tank 6 is located in the center of the inner cavity of outer shell 1, and piston ring 7 is sleeved in the center of cooling tank 6. A partition 8 is added to the bottom of cooling tank 6, and the partition 8 is tapered in shape. Scrapers 9 are added to both the left and right sides of partition 8. An annular connecting plate 10 is rotatably connected to the inner wall of outer shell 1. The annular connecting plate 10 is connected to the scraper 9, and the outer connecting plate 5 is connected to the annular connecting plate 10 through a semi-annular groove 4.

[0029] The circular connecting plate 17 is rotatably connected to the bottom of the inner cavity of the lower connecting cover 3, and a connecting handle 18 is rotatably connected to the outer side of the lower connecting cover 3. The end of the connecting handle 18 passes through the outer wall of the lower connecting cover 3 and connects to the circular connecting plate 17. When using the aerosol extinguishing agent in the outer shell 1, the aerosol extinguishing agent carries the extinguishing particles through the mesh 8 and moves upward along the cooling tank 6. The mesh 8 intercepts larger extinguishing particles. After the aerosol extinguishing agent contacts the bottom of the piston ring 7, it enters the cooling tank 6 and rises, allowing the aerosol extinguishing agent to perform the extinguishing operation through the spray device of the upper connecting cover 2. When the aerosol extinguishing agent in the outer shell 1 is used up, the outer connecting plate 5 rotates along the semi-annular groove 4 on the outer shell 1. The annular connecting plate 10 drives the scraper 9 to rotate on the outer surface of the mesh 8 along with the outer connecting plate 5. The scraper 9 scrapes away larger fire extinguishing particles intercepted on the mesh 8, causing them to fall to the top of the circular connecting plate 17. The connecting handle 18 then rotates the circular connecting plate 17 within the lower connecting cover 3, causing the fire extinguishing particles at the top of the circular connecting plate 17 to be moved to the outside of the lower connecting cover 3 for cleaning. This not only allows for timely cleaning, preventing blockage of the mesh 8, but also facilitates the cleaning operation. Furthermore, it allows the scraped fire extinguishing particles to be easily moved to the outside of the outer casing 1, preventing the accumulation of fire extinguishing particles inside the outer casing 1 and its associated problems.

[0030] Please see Figure 3 , Figure 6 The outer casing 1 has annular grooves 11 on both its upper and lower parts, and cylindrical holes are formed on both the left and right sides of the inner wall of the annular grooves 11. The outer casing 1 can be connected to the upper connecting cover 2 and the lower connecting cover 3 through the annular grooves 11. A compression spring 12 is installed in the cylindrical hole of the annular groove 11, and a semi-circular locking head 13 is added to the end of the compression spring 12. The compression spring 12 drives the semi-circular locking head 13 to move within the annular groove 11, so that the semi-circular locking head 13 connects with the corresponding structure.

[0031] Please see Figure 4 , Figure 5 Annular conical plates 14 are installed at the bottom of the upper cover 2 and the top of the lower cover 3, and the positions of the annular conical plates 14 and the annular grooves 11 correspond to each other. When the upper cover 2 and the lower cover 3 are connected to the outer shell 1, the annular conical plates 14 are inserted into the interior of the annular grooves 11. Since the part of the annular conical plates 14 that first enters the annular grooves 11 is tapered, it can drive the semi-circular clamping head 13 to retract into the cylindrical hole and compress the compression spring 12. Annular grooves 15 are opened at the center of the outer surface of the annular conical plates 14, and the positions of the annular grooves 15 and the semi-circular clamping heads 13 correspond to each other. Guide grooves are evenly opened at the bottom of the inner cavity of the annular grooves 15, and arc-shaped protrusions 16 are installed in the inner cavity of the guide grooves. After the annular cone plate 14 is fully inserted into the annular groove 11, the semi-circular clamp 13 is reset under the action of the compression spring 12 and inserted into the annular groove 15 for connection, thereby ensuring the stability of the connection between the upper connecting cover 2 and the lower connecting cover 3 and the outer shell 1. When the upper connecting cover 2 and the lower connecting cover 3 are separated from the outer shell 1, the upper connecting cover 2 and the lower connecting cover 3 are rotated on the outer shell 1 first. The annular cone plate 14 rotates with the upper connecting cover 2 and the lower connecting cover 3, so that the guide groove corresponds to the position of the semi-circular clamp 13, and the upper connecting cover 2 and the lower connecting cover 3 are then connected. When the connecting cover 3 is pulled outward, the arc-shaped convex plate 16 drives the semi-circular clamp 13 to retract into the cylindrical hole on the guide groove, compressing the compression spring 12 and causing the annular cone plate 14 to be pulled out from the annular groove 11. This not only ensures the stability of the connection between the upper connecting cover 2 and the lower connecting cover 3 and the outer shell 1, but also facilitates disassembly and assembly. At the same time, the friction between the upper connecting cover 2 and the lower connecting cover 3 and the outer shell 1 can be increased by adding washers, etc., to prevent the upper connecting cover 2 and the lower connecting cover 3 from rotating on the outer shell 1 due to vibration or other factors. The bottom of the lower connecting cover 3 is rotatably connected to the connecting seat 19 on all four sides, and an O-ring is added between the lower connecting cover 3 and the connecting seat 19. The clamping post 20 is installed on the back of the connecting seat 19, and the clamping post 20 is tightly fitted to the bottom of the circular connecting plate 17. An anti-slip handle is installed at the center of the bottom of the connecting seat 19. The connecting seat 19 can be rotated on the lower connecting cover 3 by means of the anti-slip handle. The locking pin 20 rotates in the same direction as the connecting seat 19, thereby controlling the engagement and disengagement of the locking pin 20 and the circular connecting plate 17. At the same time, the connecting seat 19 is prevented from rotating on the lower connecting cover 3 due to vibration and other factors by means of the O-ring, thereby ensuring the stability of the connection.

[0032] This scheme: When using the aerosol extinguishing agent inside the outer shell 1, the aerosol extinguishing agent carries extinguishing particles through the mesh 8 and moves upward along the cooling tank 6. The mesh 8 intercepts larger extinguishing particles. After contacting the bottom of the piston ring 7, the aerosol extinguishing agent enters the cooling tank 6 and rises, allowing it to be sprayed out through the upper connecting cover 2 for extinguishing operations. When the aerosol extinguishing agent inside the outer shell 1 is used up, the outer connecting plate 5 rotates along the semi-annular groove 4 on the outer shell 1. The annular connecting plate 10, along with the outer connecting plate 5, drives the scraper 9 to rotate on the outer surface of the mesh 8, causing the scraper 9 to scrape away the larger extinguishing particles intercepted on the mesh 8. The larger extinguishing particles fall to the top of the circular connecting plate 17 and rotate on the lower connecting cover 3 via the connecting handle 18 within the inner cavity of the circular connecting plate 17. This causes the extinguishing particles at the top of the circular connecting plate 17 to rotate to the outside of the lower connecting cover 3 for cleaning. When the upper cover 2 and the lower cover 3 are connected to the outer shell 1, the annular cone plate 14 is inserted into the annular groove 11. Since the part of the annular cone plate 14 that first enters the annular groove 11 is tapered, it can drive the semi-circular chuck 13 to retract into the cylindrical hole and squeeze the compression spring 12. When the annular cone plate 14 is fully inserted into the annular groove 11, the semi-circular chuck 13 is reset under the action of the compression spring 12 and inserted into the annular slot 15 for connection. When the upper cover 2 and the lower cover 3 are separated from the outer shell 1, the upper cover 2 and the lower cover 3 are rotated on the outer shell 1. The annular cone plate 14 rotates with the upper cover 2 and the lower cover 3, so that the guide groove corresponds to the position of the semi-circular chuck 13. When the upper cover 2 and the lower cover 3 are pulled outward, the arc-shaped protrusion 16 drives the semi-circular chuck 13 to retract into the cylindrical hole on the guide groove and squeeze the compression spring 12, so that the annular cone plate 14 is pulled out from the annular groove 11.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clogging-resistant structure for an aerosol fire extinguishing device, characterized in that, include: The outer shell (1), and the upper connecting cover (2) and the lower connecting cover (3) provided on the top and bottom of the outer shell (1), and a semi-annular groove (4) is provided on the outer right side of the outer shell (1), and an outer connecting plate (5) is rotatably connected to the inner cavity of the semi-annular groove (4). A cooling tank (6) is located in the center of the inner cavity of the outer shell (1), and a piston ring (7) is fitted in the center of the cooling tank (6). A partition net (8) is added to the bottom of the cooling tank (6), and the partition net (8) is tapered in shape. Scrapers (9) are added to both the left and right sides of the partition net (8). An annular connecting plate (10) is rotatably connected to the inner wall of the outer shell (1). The annular connecting plate (10) is connected to the scraper (9), and the outer connecting plate (5) is connected to the annular connecting plate (10) through a semi-annular groove (4). A circular connecting plate (17) is rotatably connected to the bottom of the inner cavity of the lower connecting cover (3), and a connecting handle (18) is rotatably connected to the outer side of the lower connecting cover (3). The end of the connecting handle (18) passes through the outer wall of the lower connecting cover (3) and is connected to the circular connecting plate (17).

2. The anti-clogging structure of an aerosol fire extinguishing device according to claim 1, characterized in that: The outer shell (1) has an annular groove (11) on both the upper and lower parts, and cylindrical holes are provided on both the left and right sides of the inner wall of the annular groove (11).

3. The anti-clogging structure of an aerosol fire extinguishing device according to claim 2, characterized in that: A compression spring (12) is installed in the cylindrical hole of the annular groove (11), and a semi-circular clip (13) is added to the end of the compression spring (12).

4. The anti-clogging structure of an aerosol fire extinguishing device according to claim 3, characterized in that: The bottom of the upper connecting cover (2) and the top of the lower connecting cover (3) are both equipped with annular cone plates (14), and the positions of the annular cone plates (14) and the annular grooves (11) correspond to each other.

5. The anti-clogging structure of an aerosol fire extinguishing device according to claim 4, characterized in that: The outer surface of the annular cone plate (14) is provided with an annular groove (15) at the center, and the annular groove (15) corresponds to the position of the semi-circular head (13). Guide grooves are uniformly provided at the bottom of the inner cavity of the annular groove (15), and arc-shaped protrusions (16) are installed in the inner cavity of the guide grooves.

6. The anti-clogging structure of an aerosol fire extinguishing device according to claim 5, characterized in that: The bottom of the lower connecting cover (3) is rotatably connected to the connecting seat (19) around its perimeter, and an O-ring is provided between the lower connecting cover (3) and the connecting seat (19). A locking post (20) is installed on the back of the connecting seat (19), and the locking post (20) is tightly fitted to the bottom of the round connecting plate (17). An anti-slip handle is installed at the center of the bottom of the connecting seat (19).

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