Water-based fire extinguisher with automatic pressure adjusting function for forest fire

Abstract

The invention relates to the field of fire-fighting equipment, and provides a water-based fire extinguisher with an automatic pressure adjusting function for forest fire. Comprising a tank body and a fixing rod, the fixing rod is fixedly connected to the center of an inner cavity of the tank body, the fixing rod, an arc-shaped groove, a partition plate and a cutting assembly are arranged, during production, calcium carbonate is put into the arc-shaped groove and subjected to film sealing, the upper side of the partition plate is filled with a water-based fire extinguishing agent, diluted hydrochloric acid is injected into the lower side of the partition plate, and certain air pressure is injected; under the action of air pressure, the partition plate can ascend, at the moment, a film seal of an arc-shaped groove is cut through a cutting knife, calcium carbonate slides into diluted hydrochloric acid, carbon dioxide gas is continuously generated to increase the air pressure on the lower side of the partition plate, and therefore the partition plate conducts volume compression on the upper side to achieve the gas volume, and the spraying effect of the water-based fire extinguisher is ensured; and after the water-based fire extinguishing agent is sprayed out, the spraying device is communicated with the threaded hole in the lower side, so that carbon dioxide can be sprayed out, and fire extinguishing is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of fire fighting equipment, in particular to a water-based fire extinguisher with an automatic pressure regulating function for forest fires. Background Art

[0002] The mechanism of water-based fire extinguishers is the principle of physical fire extinguishers. Fire extinguishing agents are mainly composed of hydrocarbon surfactants, fluorocarbon surfactants, flame retardants and additives. Fire extinguishing agents have a penetrating effect on Class A fires, such as wood and cloth. Fire extinguishing agents can penetrate into the inside of combustibles. Even if the fire is large and cannot be completely extinguished, the area where the agent is sprayed can effectively block the fire source and control the spread of the fire. Water-based fire extinguishers are widely used in the rescue process of forest fires.

[0003] At present, during the use of traditional water-based fire extinguishers, as the liquid inside the tank decreases, the internal pressure will decrease, resulting in a decrease in the spray pressure of the water-based fire extinguisher and a certain amount of fire extinguishing material remaining inside the tank, which is not conducive to the use of forest fire extinguishing; and traditional water-based fire extinguishers are heavy and the surface of the tank is smooth, while forest fires generally occur in remote locations. At this time, the existing water-based fire extinguishers are very inconvenient to transport and carry, and are not convenient for forest fire extinguishing. Based on the above reasons, the present invention proposes a water-based fire extinguisher with an automatic pressure adjustment function for forest fires. Summary of the invention

[0004] In order to overcome the technical defects of the prior art, the present invention provides a water-based fire extinguisher with an automatic pressure adjustment function for forest fires, which has the advantages of being able to adjust the pressure and being easy to carry and use.

[0005] The technical solution adopted by the present invention is: a water-based fire extinguisher with automatic pressure adjustment function for forest fires, including a tank body, a fixed rod is fixedly connected to the center of the inner cavity of the tank body, a plurality of arc grooves are evenly distributed on the side wall of the fixed rod, a movable shell is sleeved on the fixed rod, a partition is fixedly connected to the movable shell, a cutting assembly is arranged on the bottom surface of the partition, threaded holes are arranged in the center of the upper and lower side walls of the tank body, a spraying device is threadedly installed on the upper threaded hole, movable closing assemblies are arranged at the upper and lower ends of the fixed rod, and a connecting assembly is arranged on the outer wall of the tank body.

[0006] Preferably, the cutting assembly includes a movable plate, a cutting knife is fixedly connected to one end of the movable plate close to the fixed rod, the other end of the movable plate is fixedly connected to a fixed shaft, both ends of the fixed shaft are movably connected to side plates, and the side plates are fixedly connected to the bottom surface of the partition.

[0007] Preferably, the fixed shaft is sleeved with a first spring, one end of the first spring is fixedly connected to the side plate, and the other end of the first spring is fixedly connected to the movable plate.

[0008] Preferably, the movable closing component includes a side hole, and the upper and lower ends of the fixing rod are provided with side holes, the side holes are concentric with the threaded hole and are arranged with equal diameters, a circular shell is movably connected in the side hole, a second spring is fixedly connected to the bottom surface of the circular shell, and the other end of the second spring is fixedly connected to the bottom surface of the inner cavity of the side hole.

[0009] Preferably, four first through holes are evenly distributed on the side wall of the circular shell, and four second through holes are evenly distributed on the side wall of the inner cavity of the side hole, and the centers of the first through holes and the second through holes adjacent to each other are located in the same cross section.

[0010] Preferably, the connecting assembly includes a fixing ring, two fixing rings are fixedly connected to the outer wall of the tank body, a movable ring is movably connected to the top surface of the fixing ring, slots are provided on the fixing ring and the movable ring, the cross-section of the slots is T-shaped, the same connecting plate is inserted into two adjacent slots on two adjacent tank bodies, and the connecting plate is I-shaped.

[0011] Preferably, an annular groove is formed on the top surface of the fixed ring, an annular plate is fixedly connected to the bottom surface of the movable ring, the annular plate is inserted into the annular groove and the annular plate and the annular groove are movably connected.

[0012] Preferably, the outer diameter of the fixed ring is larger than the outer diameter of the movable ring, and a buffer pad is fixedly connected to the outer side wall of the fixed ring.

[0013] Preferably, the partition has an inverted concave cross-section and an outer diameter that is the same as that of the tank body, and a plurality of sealing rings are evenly distributed and fixedly connected to the outer side wall of the partition.

[0014] Preferably, the cross-sections of the fixing rod and the movable shell are both square, and the height of the movable shell is greater than the height of the arc groove.

[0015] The beneficial effects of the present invention are: The present invention is provided with a fixing rod, an arc groove, a partition and a cutting assembly. During production, calcium carbonate is placed in the arc groove and the arc groove is sealed with a membrane. A water-based fire extinguishing agent is filled on the upper side of the partition. Dilute hydrochloric acid is added to the lower side of the partition and a certain air pressure is added. When the spraying device sprays the water-based fire extinguishing agent, the partition can be moved upward under the action of the air pressure. At this time, the membrane seal of the arc groove is cut by a cutting knife, so that the calcium carbonate slides into the dilute hydrochloric acid, and carbon dioxide gas is continuously generated to increase the air pressure on the lower side of the partition, so that the partition compresses the volume of the upper side to realize the gas volume, thereby ensuring the spraying effect of the water-based fire extinguisher. After the water-based fire extinguishing agent is sprayed, the spraying device is connected to the lower threaded hole to spray carbon dioxide, which is convenient for fire extinguishing. The present invention is provided with a connecting assembly and a buffer pad. When the water-based fire extinguisher is transported, the fixing ring and the buffer pad can be used to buffer the collision between adjacent water-based fire extinguishers, thereby reducing damage caused by transportation. In addition, a connecting plate can be inserted into a slot to connect multiple water-based fire extinguishers. By connecting the shoulder strap to the connecting plates on both sides, multiple water-based fire extinguishers can be conveniently carried and used for forest fire fighting. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a cross-sectional three-dimensional structural schematic diagram of the present invention; Figure 3 It is a three-dimensional structural schematic diagram of two water-based fire extinguishers connected and installed according to the present invention; Figure 4 is a schematic diagram of the three-dimensional structure of the connection assembly of the present invention; Figure 5 It is a schematic diagram of the internal three-dimensional structure of the tank body of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure on the partition of the present invention; Figure 7 It is a schematic diagram of the cross-sectional three-dimensional structure of the fixing rod of the present invention.

[0017] Explanation of the reference numerals: tank body; 2, fixing rod; 3, arc groove; 4, movable shell; 5, partition; 6, cutting assembly; 7, threaded hole; 8, ejection device; 9, movable closing assembly; 10, connecting assembly; 11, movable plate; 12, cutting knife; 13, fixed shaft; 14, side plate; 15, first spring; 16, side hole; 17, round shell; 18, second spring; 19, first through hole; 20, second through hole; 21, fixing ring; 22, movable ring; 23, slot; 24, connecting plate; 25, annular groove; 26, annular plate; 27, buffer pad; 28, sealing ring. DETAILED DESCRIPTION

[0018] The present invention will be further described below in conjunction with the accompanying drawings: like Figure 1-7 As shown, this embodiment provides a water-based fire extinguisher with an automatic pressure adjustment function for forest fires, including a tank body 1, a fixed rod 2 is fixedly connected to the center of the inner cavity of the tank body 1, a plurality of arc grooves 3 are evenly distributed on the side wall of the fixed rod 2, a movable shell 4 is sleeved on the fixed rod 2, a partition 5 is fixedly connected to the movable shell 4, a cutting assembly 6 is arranged on the bottom surface of the partition 5, and the cutting assembly 6 includes a movable plate 11, a cutting knife 12 is fixedly connected to one end of the movable plate 11 close to the fixed rod 2, and a fixed shaft 13 is fixedly connected to the other end of the movable plate 11. Both ends of 13 are movably connected with side plates 14, and the side plates 14 are fixedly connected to the bottom surface of the partition 5. The fixed shaft 13 is sleeved with a first spring 15, one end of the first spring 15 is fixedly connected to the side plate 14, and the other end of the first spring 15 is fixedly connected to the movable plate 11. The film seal on the arc groove 3 is cut by the cutting knife 12, so that calcium carbonate reacts with dilute hydrochloric acid to produce carbon dioxide gas, and the carbon dioxide gas is used to pressurize the lower side of the partition 5 to achieve the push of the partition 5, ensuring that the water-based fire extinguishing agent on the upper side has a stable pressure for spraying, and the fire extinguishing effect is good; The partition 5 has an inverted concave cross section and an outer diameter that is the same as that of the tank body 1. A plurality of sealing rings 28 are evenly distributed and fixedly connected to the outer wall of the partition 5 to improve the sealing performance of the partition 5. The cross-sections of the fixed rod 2 and the movable shell 4 are both square, and the height of the movable shell 4 is greater than the height of the arc groove 3, so as to facilitate the stable movement of the movable shell 4 on the fixed rod 2 and to close the arc groove 3 through the movable shell 4, thereby preventing the upper and lower sides of the partition 5 from penetrating. The center of the upper and lower side walls of the tank body 1 is provided with threaded holes 7, and a spraying device 8 is threadedly installed in the upper threaded hole 7. By installing the spraying device 8 in the threaded holes 7 on both sides, the water-based fire extinguishing agent and carbon dioxide gas can be discharged, which is convenient for fire extinguishing; Both upper and lower ends of the fixing rod 2 are provided with movable sealing components 9, and the movable sealing components 9 include side holes 16. Both upper and lower ends of the fixing rod 2 are provided with side holes 16, and the side holes 16 are concentric with the threaded holes 7 and are arranged with equal diameters. A round shell 17 is movably connected in the side holes 16, and a second spring 18 is fixedly connected to the bottom surface of the round shell 17, and the other end of the second spring 18 is fixedly connected to the bottom surface of the inner cavity of the side hole 16. Four first through holes 19 are evenly distributed on the side wall of the round shell 17, and four second through holes 20 are evenly distributed on the side wall of the inner cavity of the side hole 16. The centers of the upper and lower adjacent first through holes 19 and second through holes 20 are arranged in the same cross section, which can realize the closure of the upper and lower ends of the fixing rod 2, avoid leakage of the internal material of the tank body 1, and have a good use effect. A connecting assembly 10 is provided on the outer wall of the tank body 1. The connecting assembly 10 includes a fixing ring 21. Two fixing rings 21 are fixedly connected to the outer wall of the tank body 1. A movable ring 22 is movably connected to the top surface of the fixing ring 21. Slots 23 are provided on the fixing ring 21 and the movable ring 22. The cross-section of the slots 23 is T-shaped. The same connecting plate 24 is inserted into two adjacent slots 23 on two adjacent tank bodies 1. The connecting plate 24 is I-shaped, which can realize the connection operation of multiple water-based fire extinguishers, thereby facilitating the transportation operation of water-based fire extinguishers during forest fire fighting; Among them, an annular groove 25 is opened on the top surface of the fixed ring 21, and an annular plate 26 is fixedly connected to the bottom surface of the movable ring 22. The annular plate 26 is inserted into the annular groove 25 and the annular plate 26 is movably connected to the annular groove 25, so that the movable ring 22 can be rotated to close the slot 23, thereby improving the stability of the connection to the water-based fire extinguisher; The outer diameter of the fixed ring 21 is larger than the outer diameter of the movable ring 22, and a buffer pad 27 is fixedly connected to the outer wall of the fixed ring 21 to reduce damage between water-based fire extinguishers and external impacts and improve protection.

[0019] Working principle: when producing the device, calcium carbonate solid is placed in each arc groove 3, and the arc groove 3 is sealed by a suitable membrane, a water-based fire extinguishing agent is added to the inner cavity of the tank body 1 on the upper side of the partition 5, and a certain amount of dilute hydrochloric acid and a preset air pressure are added to the inner cavity of the tank body 1 on the lower side of the partition 5. When the device is manually carried and transported, a suitable number of water-based fire extinguishers are placed together, and the same connecting plate 24 is inserted into two adjacent slots 23, so that the connecting plate 24 is inserted into two adjacent fixed rings 21, and the movable ring 22 is rotated to realize the connection. The connecting plate 24 is positioned, and the connecting plate 24 can be used to connect two adjacent water-based fire extinguishers. In this way, a suitable number of water-based fire extinguishers can be connected, and then ropes are fixed to the connecting plates 24 on both sides. Transport personnel can use ropes to transport multiple water-based fire extinguishers at one time, which is not only convenient for transportation but also has high stability between water-based fire extinguishers, and is convenient for use in forest fires. When using a water-based fire extinguisher, by opening the spraying device 8, the water-based fire extinguishing agent in the inner cavity of the tank body 1 located on the upper side of the partition 5 is sprayed out from the spraying device 8 to achieve the fire extinguishing function, and As the water-based fire extinguishing agent decreases and the air pressure at the lower side of the partition 5 acts, the partition 5 continuously moves upward, and the partition 5 drives the movable plate 11 to move. When the partition 5 moves to a certain height, the movable plate 11 is driven to move under the action of the first spring 15, so that the cutting knife 12 on the movable plate 11 cuts the film seal on the arc groove 3, so that the calcium carbonate in the arc groove 3 falls into the dilute hydrochloric acid, and carbon dioxide gas is continuously generated through the reaction of calcium carbonate and dilute hydrochloric acid. The air pressure at the lower side of the partition 5 continuously increases, so that the partition 5 squeezes and pushes the water-based fire extinguishing agent on the upper side, thereby achieving water-based fire extinguishing. The air pressure adjustment operation of the agent spraying is convenient for fire extinguishing. When the water-based fire extinguishing agent on the upper side of the partition 5 is completely sprayed out, the spraying device 8 is screwed out from the threaded hole 7 on the upper side of the tank body 1, and then the spraying device 8 is screwed into the threaded hole 7 on the lower side of the tank body 1. The round shell 17 is pushed by the spraying device 8, and the round shell 17 compresses the second spring 18 to make the first through hole 19, the second through hole 20 and the spraying device 8 pass through. At this time, by inverting the tank body 1 and opening the spraying device 8, the carbon dioxide gas inside the tank body 1 can be sprayed out, and the carbon dioxide is used to perform the fire extinguishing operation again, which is convenient for fire extinguishing.

[0020] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A water-based fire extinguisher with automatic pressure adjustment function for forest fire, comprising a tank (1), characterized in that: A fixing rod (2) is fixedly connected to the center of the inner cavity of the tank body (1), and a plurality of arc-shaped grooves (3) are evenly distributed on the side wall of the fixing rod (2). A movable shell (4) is sleeved on the fixing rod (2), and a partition (5) is fixedly connected to the movable shell (4). A cutting assembly (6) is arranged on the bottom surface of the partition (5). Threaded holes (7) are arranged in the center of the upper and lower side walls of the tank body (1), and a spraying device (8) is threadedly connected and installed on the upper threaded hole (7). Movable sealing assemblies (9) are arranged at the upper and lower ends of the fixing rod (2), and a connecting assembly (10) is arranged on the outer wall of the tank body (1).

2. A water-based fire extinguisher with automatic pressure adjustment function for forest fire according to claim 1, characterized in that: The cutting assembly (6) comprises a movable plate (11), one end of the movable plate (11) close to the fixed rod (2) is fixedly connected to a cutting knife (12), the other end of the movable plate (11) is fixedly connected to a fixed shaft (13), both ends of the fixed shaft (13) are movably connected to side plates (14), the side plates (14) are fixedly connected to the bottom surface of the partition (5), and the fixed shaft (13) is sleeved with a first spring (15).

3. A water-based fire extinguisher with automatic pressure adjustment function for forest fire according to claim 2, characterized in that: One end of the first spring (15) is fixedly connected to the side plate (14), and the other end of the first spring (15) is fixedly connected to the movable plate (11).

4. A water-based fire extinguisher with automatic pressure adjustment function for forest fire according to claim 3, characterized in that: The movable sealing component (9) comprises a side hole (16). The upper and lower ends of the fixing rod (2) are both provided with a side hole (16). The side hole (16) is concentric with the threaded hole (7) and is arranged with the same diameter. A round shell (17) is movably connected in the side hole (16). A second spring (18) is fixedly connected to the bottom surface of the round shell (17). The other end of the second spring (18) is fixedly connected to the bottom surface of the inner cavity of the side hole (16).

5. A water-based fire extinguisher with automatic pressure adjustment function for forest fire according to claim 4, characterized in that: Four first through holes (19) are evenly distributed on the side wall of the circular shell (17), and four second through holes (20) are evenly distributed on the inner cavity side wall of the side hole (16), and the centers of the first through holes (19) and the second through holes (20) adjacent to each other are located in the same cross section.

6. A water-based fire extinguisher with automatic pressure adjustment function for forest fire according to claim 5, characterized in that: The connection assembly (10) comprises a fixing ring (21), two fixing rings (21) are fixedly connected to the outer wall of the tank body (1), a movable ring (22) is movably connected to the top surface of the fixing ring (21), a slot (23) is provided on the fixing ring (21) and the movable ring (22), the slot (23) has a T-shaped cross section, and the same connecting plate (24) is inserted into two adjacent slots (23) on two adjacent tank bodies (1), and the connecting plate (24) is arranged in an I-shape.

7. A water-based fire extinguisher with automatic pressure adjustment function for forest fire according to claim 6, characterized in that: An annular groove (25) is provided on the top surface of the fixed ring (21), and an annular plate (26) is fixedly connected to the bottom surface of the movable ring (22); the annular plate (26) is inserted into the annular groove (25), and the annular plate (26) and the annular groove (25) are movably connected.

8. A water-based fire extinguisher with automatic pressure adjustment function for forest fire according to claim 7, characterized in that: The outer diameter of the fixed ring (21) is larger than the outer diameter of the movable ring (22), and a buffer pad (27) is fixedly connected to the outer side wall of the fixed ring (21).

9. A water-based fire extinguisher with automatic pressure adjustment function for forest fire according to claim 7, characterized in that: The partition (5) has an inverted concave cross-section and an outer diameter that is the same as that of the tank body (1). A plurality of sealing rings (28) are evenly distributed and fixedly connected to the outer wall of the partition (5).

10. A water-based fire extinguisher with automatic pressure adjustment function for forest fire according to claim 8, characterized in that: The cross-sections of the fixed rod (2) and the movable shell (4) are both square, and the height of the movable shell (4) is greater than the height of the arc-shaped groove (3).

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