Dry powder extinguishing device for fire fighting truck

Abstract

The dry powder fire extinguishing device comprises a fire fighting truck body, a fire extinguishing carriage is arranged on one side of the fire fighting truck body, a dry powder tank body is arranged on the inner wall of the fire extinguishing carriage, a mounting groove is formed in the inner side wall of the fire extinguishing carriage, and a pressurizing component is arranged in the mounting groove. And a spraying end is arranged on one side of the dry powder tank body. A handheld gun is controlled through a portable handle, fire can be extinguished more accurately, before the fire is extinguished, a moving plate is rotated to be separated from a rotating plate and connected with a fixing ring in a threaded and sleeved mode, at the moment, a connecting plate pulls the rotating plate through a connecting rod, the rotating plate is in a vertical state, anti-explosion cloth is spread and stretched straight, and the fire can be extinguished more accurately. The plurality of rotating plates drive the plurality of pieces of explosion-proof cloth to be tightened to form a circular protective cover, so that an isolation and protection effect can be achieved between an object on fire and a fire-fighting worker, the potential safety hazard of fire extinguishment is reduced, and the safety is improved.

Description

Technical Field

[0001] This utility model is a dry powder fire extinguishing device for fire trucks, belonging to the field of fire extinguishing devices. Background Technology

[0002] The dry powder extinguishing system on a fire truck is a dedicated dry powder storage tank used to store dry powder extinguishing agents such as sodium bicarbonate and ammonium phosphate. The capacity can range from hundreds of kilograms to several tons, meeting the needs of large-scale firefighting. Powered by high-pressure nitrogen, the dry powder is delivered at high speed to the spraying device through pressure conversion, ensuring rapid response and continuous operation. The extinguishing system works in conjunction with dry powder nozzles and portable handheld guns and is installed inside the fire truck's dedicated compartment. The dry powder nozzles and heads spray dry powder under high pressure to extinguish distant fires. For more precise fire suppression, the nozzles can be removed for handheld use. To increase the extinguishing distance, the dry powder nozzles are designed to be very long and stored inside the truck compartment, simply unfolded for use.

[0003] In existing technologies, when firefighters remove the portable handheld gun from the dry powder extinguishing device on a fire truck to precisely extinguish the fire, they come into close contact with the fire source. If the burning material explodes during this process, small fragments may injure the firefighters, thereby increasing safety hazards and reducing safety. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a dry powder fire extinguishing device for fire trucks to solve the problems mentioned in the background. This utility model can play a role in isolating and protecting the burning object from firefighters, thereby reducing the safety hazards of fire extinguishing and improving safety.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a dry powder fire extinguishing device for fire trucks, comprising a fire truck body, a fire extinguishing compartment on one side of the fire truck body, a dry powder tank body on the inner wall of the fire extinguishing compartment, an installation groove on the inner side wall of the fire extinguishing compartment, and a pressurizing component inside the installation groove.

[0006] The dry powder canister body has a spray end on one side, a control valve on the outer wall of the spray end, a dry powder spray pipe fixedly connected to one side of the spray end, a handheld gun fixedly connected to one end of the dry powder spray pipe, a threaded outer wall of the handheld gun, a protective component on the outside of the handheld gun, and a shock-absorbing component on the outer wall of the handheld gun.

[0007] Furthermore, a support frame is fixedly connected to the inner bottom wall of the fire truck carriage, and a threaded channel is provided on one side of the support frame, and the handheld gun is threadedly connected to the support frame through the thread and the threaded channel.

[0008] Furthermore, the pressurization component includes a vehicle-mounted air pump fixedly connected to the inner wall of the mounting slot. The air inlet of the vehicle-mounted air pump is fixedly connected to an air source conduit. One end of the air source conduit penetrates the interior of the dry powder canister body, and the air source conduit is fixedly connected to the dry powder canister body.

[0009] Furthermore, the protective component includes a support ring fixedly sleeved on the outer wall of the handheld gun. The outer wall of the support ring has a groove, and a rotating rod is fixedly connected to the inner wall of the groove. A rotating plate is rotatably sleeved on the outer wall of the rotating rod. The outer wall of the rotating plate has a threaded surface, and a movable plate is threadedly sleeved on the outer wall of the threaded surface. The inner wall of the movable plate has a threaded groove, and a connecting plate is rotatably connected to one side of the movable plate. A connecting rod is fixedly connected to one side of the connecting plate. The outer wall of the rotating plate has a slot, and a ball is rotatably connected to the inner wall of the slot. One end of the connecting rod is fixedly connected to the outer wall of the ball. Explosion-proof fabric is fixedly connected to the outer wall of the rotating plate.

[0010] Furthermore, the movable plate has a "ring" shaped structure, and the shape of the connecting plate is the same as that of the movable plate.

[0011] Furthermore, a portable handle is fixedly connected to the outer wall of the movable plate, and the outer wall of the portable handle is provided with an anti-slip pad.

[0012] Furthermore, the shock-absorbing component includes a buffer plate fixedly sleeved on the outer wall of the handheld gun. A damper is fixedly connected to one side of the buffer plate, a shock-absorbing plate is fixedly connected to one end of the damper, a spring is fixedly connected to one end of the shock-absorbing plate, one end of the spring is fixedly connected to one side of the buffer plate, the spring is sleeved on the outside of the damper, a fixing ring is fixedly connected to the inner wall of the shock-absorbing plate, the fixing ring is slidably sleeved with the handheld gun, and the outer wall of the fixing ring is threaded.

[0013] The beneficial effects of this utility model are:

[0014] 1. By operating the handheld gun with the portable handle, more precise fire extinguishing can be achieved. Before this, rotate the moving plate to disengage it from the rotating plate and engage it with the threaded fixed ring. At this time, the connecting plate pulls the rotating plate through the connecting rod, making the rotating plate vertical. The explosion-proof fabric is unfolded and stretched. Multiple rotating plates drive multiple explosion-proof fabrics to tighten, forming a circular protective cover. This can isolate and protect the burning material from firefighters, thereby reducing the safety hazards of fire extinguishing and improving safety.

[0015] 2. The fixed ring can be used to position the moving plate through the thread. The handheld handle is used to operate the handheld gun to spray dry powder at the burning object. At this time, the impact force of the dry powder will cause the handheld gun to have a counter-impact force. Then, through the cooperation of the damper and the spring, a shock absorption and buffering effect can be achieved, thus further meeting the working requirements of the device.

[0016] 3. The operation of the vehicle-mounted air pump can pressurize the inside of the dry powder canister through the air source pipe, thereby maintaining a constant pressure inside the dry powder canister. As a result, the air pressure inside the dry powder canister will not decrease with working time, allowing for a longer spraying time and more complete spraying of dry powder. This avoids the situation of dry powder residue and improves the practicality of the device. Attached Figure Description

[0017] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the structure of a dry powder fire extinguishing device for a fire truck according to the present invention;

[0019] Figure 2 for Figure 1 Enlarged view of the structure at point A in the middle;

[0020] Figure 3 This is a schematic diagram of the structure of the dry powder tank body in this utility model;

[0021] Figure 4 This is a schematic diagram of the handheld gun in this utility model;

[0022] Figure 5 for Figure 4 Enlarged view of the structure at point B;

[0023] Figure 6 This is a schematic diagram of the structure of the fixing ring in this utility model.

[0024] In the diagram: 1. Fire truck body; 2. Fire truck compartment; 3. Dry powder tank body; 4. Mounting slot; 41. Onboard air pump; 42. Air source conduit; 5. Spray end; 6. Control valve; 7. Dry powder nozzle; 8. Handheld gun; 9. Support ring; 91. Groove; 92. Rotating rod; 93. Rotating plate; 94. Explosion-proof fabric; 95. Moving plate; 951. Connecting plate; 952. Connecting rod; 953. Ball bearing; 954. Portable handle; 10. Support frame; 11. Buffer plate; 111. Damper; 112. Spring; 113. Shock absorber; 114. Fixing ring. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] Please see Figures 1-6 This utility model provides a technical solution: a dry powder fire extinguishing device for fire trucks, including a fire truck body 1, a fire truck compartment 2 on one side of the fire truck body 1, a dry powder tank body 3 on the inner wall of the fire truck compartment 2, an installation groove 4 on the inner side wall of the fire truck compartment 2, and a pressurizing component inside the installation groove 4.

[0027] Please see Figures 1-6 The dry powder tank body 3 has a spray end 5 on one side, and a control valve 6 on the outer wall of the spray end 5. A dry powder spray pipe 7 is fixedly connected to one side of the spray end 5, and a handheld gun 8 is fixedly connected to one end of the dry powder spray pipe 7. The outer wall of the handheld gun 8 is threaded. The control valve 6 is an existing device and will not be explained in detail here. Both the fire truck body 1 and the handheld gun 8 are equipped with control switch systems. The control valve 6 is interconnected with the control switch systems on the fire truck body 1 and the handheld gun 8, so that the control valve 6 can be opened and closed through the control system on the fire truck body 1 and the handheld gun 8. When the control valve 6 is opened, the dry powder will be sprayed from one end of the handheld gun 8 through the dry powder spray pipe 7, so as to extinguish the fire source. The handheld gun 8 is equipped with protective components on the outside and shock-absorbing components on the outer wall of the handheld gun 8.

[0028] Please see Figures 1-6 The inner bottom wall of the fire engine compartment 2 is fixedly connected to a support frame 10. A threaded channel is provided on one side of the support frame 10, and the handheld gun 8 is threadedly connected to the support frame 10 through the thread and the threaded channel, so that the support frame 10 can support the handheld gun 8.

[0029] Please see Figures 1-2 The pressurization component includes a vehicle-mounted air pump 41 fixedly connected to the inner wall of the mounting slot 4. An air source conduit 42 is fixedly connected to the air port of the vehicle-mounted air pump 41. One end of the air source conduit 42 penetrates the interior of the dry powder canister body 3 and is fixedly connected to the dry powder canister body 3. Through the operation of the vehicle-mounted air pump 41, the internal pressure of the dry powder canister body 3 can be increased through the air source conduit 42, thereby achieving a constant pressure state inside the dry powder canister body 3. As a result, the air pressure of the dry powder canister body 3 will not decrease with the working time, making the spraying time longer and achieving more complete dry powder spraying, thus avoiding the situation of dry powder residue.

[0030] Please see Figures 1-5The protective components include a support ring 9 fixedly sleeved on the outer wall of the handheld gun 8. The outer wall of the support ring 9 has a groove 91. A rotating rod 92 is fixedly connected to the inner wall of the groove 91. A rotating plate 93 is rotatably sleeved on the outer wall of the rotating rod 92. The outer wall of the rotating plate 93 has a threaded surface, and a movable plate 95 is threadedly sleeved on the outer wall of the threaded surface. The inner wall of the movable plate 95 has a threaded groove. A connecting plate 951 is rotatably connected to one side of the movable plate 95. The movable plate 95 has a ring-shaped structure. The shape of the connecting plate 951 is the same as that of the movable plate 95. Rotating the movable plate 95 causes the connecting plate 951 to move on the handheld gun 8. A connecting rod 952 is fixedly connected to one side of the connecting plate 951. The outer wall of the rotating plate 93 has a slot, and a ball bearing 953 is rotatably connected to the inner wall of the slot. One end of the connecting rod 952 is fixedly connected to the outer wall of the ball bearing 953. An explosion-proof device is fixedly connected to the outer wall of the rotating plate 93. Fabric 94, the main material of explosion-proof fabric 94 is Kevlar fiber. Kevlar fiber has extremely high strength and impact resistance, and can withstand the impact of explosive fragments to a certain extent. A portable handle 954 is fixedly connected to the outer wall of the movable plate 95. The outer wall of the portable handle 954 is equipped with an anti-slip pad. The portable handle 954 makes it easier to operate the handheld gun 8. Rotating the movable plate 95 allows it to rotate outside the handheld gun 8 and move towards the dry powder nozzle 7, thereby detaching the movable plate 95 from the rotating plate 93. The connecting plate 951 pulls the rotating plate 93 through the connecting rod 952, so that the rotating plate 93 is in a vertical state. The explosion-proof fabric 94 is unfolded and stretched. There are multiple rotating plates 93 and multiple explosion-proof fabrics 94. After the multiple rotating plates 93 drive the multiple explosion-proof fabrics 94 to be stretched, they form a circular protective cover, which can then play a role in isolating and protecting the burning object from the firefighters.

[0031] Please see Figures 1-6 The shock-absorbing component includes a buffer plate 11 fixedly sleeved on the outer wall of the handheld gun 8. A damper 111 is fixedly connected to one side of the buffer plate 11. A shock-absorbing plate 113 is fixedly connected to one end of the damper 111. A spring 112 is fixedly connected to one end of the shock-absorbing plate 113. One end of the spring 112 is fixedly connected to one side of the buffer plate 11. The spring 112 is sleeved on the outside of the damper 111. A fixing ring 114 is fixedly connected to the inner wall of the shock-absorbing plate 113. The fixing ring 114 is slidably sleeved with the handheld gun 8. The outer wall of the fixing ring 114 is threaded. After the moving plate 95 is disengaged from the rotating plate 93, it is threaded onto the outer wall of the fixing ring 114. Thus, the fixing ring 114 can position the moving plate 95 through the thread. The handheld portable handle 954 controls the handheld gun 8 to spray dry powder at the burning object. At this time, the impact force of the dry powder will cause the handheld gun 8 to have a counter-impact force. Thus, through the cooperation of the damper 111 and the spring 112, a shock-absorbing and buffering effect can be achieved.

[0032] Working principle: First, the support frame 10 can support the handheld gun 8. The operation of the vehicle-mounted air pump 41 can pressurize the inside of the dry powder canister 3 through the air source pipe 42. When the control valve 6 is opened, dry powder can be sprayed through the handheld gun 8, and thus large-scale fire extinguishing can be carried out in the fire without human intervention.

[0033] Secondly, rotate the handheld gun 8 to detach it from the support frame 10, and the handheld gun 8 can be removed. By operating the handheld gun 8 through the portable handle 954, the fire can be extinguished more accurately. Before this, rotate the moving plate 95 to detach it from the rotating plate 93 and thread it into the fixing ring 114. At this time, the connecting plate 951 pulls the rotating plate 93 through the connecting rod 952, so that the rotating plate 93 is in a vertical state, and the explosion-proof cloth 94 is unfolded and stretched. After multiple rotating plates 93 drive multiple explosion-proof cloths 94 to tighten, they form a circular protective cover, which can then play a role in isolating and protecting the fire-fighting personnel from the fire.

[0034] Finally, the fixing ring 114 can be used to position the moving plate 95 through the thread. The handheld portable handle 954 controls the handheld gun 8 to spray dry powder at the burning object. At this time, the impact force of the dry powder will cause the handheld gun 8 to have a counter-impact force, which can play a shock absorption and buffering role through the cooperation of the damper 111 and the spring 112.

[0035] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dry powder extinguishing device for a fire fighting vehicle, comprising a fire fighting vehicle body (1), characterized in that: The fire fighting truck body (1) is provided with a fire fighting compartment (2) on one side, the inner wall of the fire fighting compartment (2) is provided with a dry powder tank body (3), the inner side wall of the fire fighting compartment (2) is provided with a mounting groove (4), the inside of the mounting groove (4) is provided with a booster component, One side of the dry powder tank body (3) is provided with a spray end (5), the outer wall of the spray end (5) is provided with a control valve (6), one side of the spray end (5) is fixedly connected with a dry powder spray pipe (7), one end of the dry powder spray pipe (7) is fixedly connected with a handheld gun (8), the outer wall of the handheld gun (8) is provided with a thread, the outside of the handheld gun (8) is provided with a protection component, and the outer wall of the handheld gun (8) is provided with a damping component.

2. A dry chemical extinguishing apparatus for a fire fighting vehicle as defined in claim 1, characterized in that: The inner bottom wall of the fire fighting compartment (2) is fixedly connected with a support frame (10), one side of the support frame (10) is provided with a threaded channel, and the handheld gun (8) is threadedly connected with the support frame (10) through the thread and the threaded channel.

3. A dry chemical extinguishing apparatus for a fire fighting vehicle as defined in claim 1, wherein: The booster component comprises a vehicle-mounted air pump (41) fixedly connected to the inner wall of the mounting groove (4), an air source conduit (42) fixedly connected to the air port of the vehicle-mounted air pump (41), and the air source conduit (42) penetrating through the inside of the dry powder tank body (3) and fixedly connected with the dry powder tank body (3).

4. A dry chemical extinguishing apparatus for a fire fighting vehicle as defined in claim 1, wherein: The protection component comprises a support ring (9) fixedly sleeved on the outer wall of the handheld gun (8), the outer wall of the support ring (9) is provided with a groove (91), the inner wall of the groove (91) is fixedly connected with a rotating rod (92), the outer wall of the rotating rod (92) is rotatably sleeved with a rotating plate (93), the outer wall of the rotating plate (93) is provided with a threaded surface, the threaded surface is threadedly sleeved with a moving plate (95), the inner wall of the moving plate (95) is provided with a screw groove, one side of the moving plate (95) is rotatably connected with a connecting plate (951), one side of the connecting plate (951) is fixedly connected with a connecting rod (952), the outer wall of the rotating plate (93) is provided with a clamping groove, the inner wall of the clamping groove is rotatably connected with a ball (953), one end of the connecting rod (952) is fixedly connected with the outer wall of the ball (953), and the outer wall of the rotating plate (93) is fixedly connected with an explosion-proof cloth (94).

5. A dry chemical extinguishing apparatus for a fire fighting vehicle as defined in claim 4, characterized in that: The moving plate (95) is a "circular ring" structure, and the shape of the connecting plate (951) is the same as that of the moving plate (95).

6. A dry chemical extinguishing apparatus for a fire fighting vehicle as defined in claim 4, wherein The outer wall of the moving plate (95) is fixedly connected with a portable handle (954), and the outer wall of the portable handle (954) is provided with a non-slip pad.

7. A dry chemical extinguishing apparatus for a fire fighting vehicle as defined in claim 1, wherein: The shock-absorbing part comprises a buffer plate (11) fixedly sleeved on the outer wall of the handheld gun (8), one side of the buffer plate (11) is fixedly connected with a damper (111), one end of the damper (111) is fixedly connected with a shock-absorbing plate (113), one end of the shock-absorbing plate (113) is fixedly connected with a spring (112), one end of the spring (112) is fixedly connected on one side of the buffer plate (11), the spring (112) is sleeved on the outside of the damper (111), the inner wall of the shock-absorbing plate (113) is fixedly connected with a fixing ring (114), the fixing ring (114) is slidably sleeved with the handheld gun (8), and the outer wall of the fixing ring (114) is provided with threads.

Images