Vehicle-mounted inert gas fire extinguishing device

Abstract

The utility model relates to vehicle-mounted inert gas fire extinguishing device relates to vehicle-mounted fire fighting equipment technical field, include: inner support, the pipeline winding drum of rotation connection in the inner support inside, the jet hose of winding in the pipeline winding drum outside, inert gas cylinder, the both ends of pipeline winding rotation axle in the pipeline winding drum inside are connected the inner support through bearing rotation, fixed connection have pipeline connecting pipe between the pipeline winding drum drum surface and pipeline winding rotation axle, the utility model discloses vehicle-mounted inert gas fire extinguishing device through pipeline winding drum carries out winding to jet hose, improves the storage convenience of pipeline, avoids the problem that the overlength pipeline is caused because of the storage inconvenience and leads to the pipeline curling, winding and causes the problem that the fire rescue efficiency is affected because of the incommode of dragging, the problem that the knot of pipeline causes the gas flow performance and restricts the rescue efficiency, solves the problem that the whole efficiency of fire rescue is further affected because of the incommode of dragging, the inconvenient movement of pipeline curling, winding in the actual combat rescue process, and further.

Description

Technical Field

[0001] This utility model relates to the field of vehicle-mounted fire-fighting equipment technology, and in particular to a vehicle-mounted inert gas fire extinguishing device. Background Technology

[0002] Inert gas fire suppression works by injecting inert gases such as nitrogen and carbon dioxide into the combustion zone to create a low-oxygen environment, reducing the oxygen concentration to below 15% and halting the combustion chain reaction. It does not rely on chemical reactions but rather on physically isolating oxygen to suffocate the fire. Currently, vehicle-mounted inert gas fire suppression systems for fire and rescue typically require corresponding gas delivery pipelines to allow rescuers to accurately spray the extinguishing gas towards the fire source. However, in traditional vehicle-mounted inert gas fire suppression systems, excessively long pipelines are not only inconvenient to store and manage but also prone to twisting and tangling during actual rescue operations, hindering dragging and movement and impacting overall fire and rescue efficiency. Furthermore, if the pipeline becomes knotted, it significantly reduces gas flow, weakening the extinguishing effect and thus limiting rescue effectiveness. Utility Model Content

[0003] This utility model provides a vehicle-mounted inert gas fire extinguishing device to solve the problems of traditional vehicle-mounted inert gas fire extinguishing devices. If the pipes are too long, they are not only inconvenient to store and organize, but also prone to being dragged and moved due to twisting and tangling during actual rescue operations, thus affecting the overall efficiency of fire rescue. In addition, if the pipes are knotted, the gas flow performance will be significantly reduced, weakening the fire extinguishing effect and thus restricting the effectiveness of rescue.

[0004] This utility model provides a vehicle-mounted inert gas fire extinguishing device, comprising: an inner support, a pipe winding drum rotatably connected inside the inner support, a jet hose wound around the outside of the pipe winding drum, and an inert gas cylinder. The pipe winding shaft inside the pipe winding drum is rotatably connected to the inner support at both ends via bearings. A pipe connecting pipe is fixedly connected between the surface of the pipe winding drum and the pipe winding shaft. A shaft through-hole is opened at the left end of the pipe winding shaft, and the pipe connecting pipe communicates with the shaft through-hole. A connecting pipe spiral interface is opened at the upper end of the pipe connecting pipe. The left end of the pipe winding shaft is connected to a sealing ring via a bearing. A rotating airflow connecting pipe is connected to an airflow control pipe at one end, which in turn is connected to a manifold. The manifold is connected to the inert gas cylinder via a pipe. A hose spiral plug is fixedly connected to one end of the jet hose, which is spirally connected to the connecting pipe spiral interface. A jet gun is fixedly connected to the other end of the jet hose. A driven bevel gear is fixedly connected to the left end of the connecting pipe. A support winding shaft is rotatably connected above the inner support. The rear end of the support winding shaft is fixedly connected to a driving bevel gear meshing with the driven bevel gear. A control handle is connected to the front end of the support winding shaft.

[0005] Furthermore, a gear protective cover is connected to the upper edge of the left frame of the inner support by screws, and the gear protective cover covers the top and left side of the active bevel gear.

[0006] Furthermore, the outer edges of the two side plates of the pipe winding drum are radially distributed with directional insertion ports, and a side support is fixedly connected to the upper part of the left frame of the inner support. The winding shaft of the support is connected to the side support through a bearing.

[0007] Furthermore, the side support has through holes on both sides, and a spiral locking rod is spirally connected inside the screw holes.

[0008] Furthermore, a directional plug is fixedly connected to the right end of the spiral locking rod, and the directional plug is movably inserted into the directional socket on the left side of the pipe winding drum.

[0009] Furthermore, a four-corner plug is fixedly connected to the front end of the bracket winding shaft, and a square-hole sleeve is fixedly connected to the rear end of the control handle, with the square-hole sleeve slidably connected to the four-corner plug.

[0010] Furthermore, an outer support is provided outside the inner support, and the manifold is fixedly connected to the support plate above the outer support through an annular frame.

[0011] Furthermore, the airflow control pipe is equipped with an outlet valve, a branch valve, a pressure regulating valve, and a main valve in sequence from right to left.

[0012] Furthermore, the inert gas cylinder is fixed to the inner wall of the carriage by brackets and clamps.

[0013] The vehicle-mounted inert gas fire extinguishing device provided by this utility model has the following beneficial effects: 1. The vehicle-mounted inert gas fire extinguishing device of this utility model uses a pipe winding drum to wind up the jet hose, which improves the convenience of pipe storage and avoids the problem that excessively long pipes are difficult to store, causing them to be twisted or tangled, resulting in poor dragging and inconvenience in movement, thus affecting the efficiency of fire rescue. It also avoids the problem that pipe knots can affect gas flow performance and restrict rescue effectiveness.

[0014] 2. In this utility model, the pipe winding shaft drives the pipe winding drum through the meshing connection of the driven bevel gear and the driving bevel gear. The rotation of the pipe winding drum is controlled by the control handle to wind up and unwind the pipe, making the pipe winding and unwinding smooth and avoiding knots and tangles. At the same time, the airflow connecting pipe is rotated and connected to the pipe winding shaft, so that the jet hose remains connected to the airflow connecting pipe while the pipe winding drum rotates.

[0015] 3. This utility model uses a helical locking rod installed on a side support. Rotating the helical locking rod can control the left and right movement of the directional plug, so that the directional plug can be inserted into the directional socket, thereby locking the pipe winding drum in a circumferential manner and preventing the pipe winding drum from rotating due to external forces when the pipe is in the storage state, which would cause the air hose to fall off. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0017] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0018] In the attached diagram: Figure 1 A schematic diagram of the tube structure of this application is shown; Figure 2 A schematic diagram of the structure of the pipe winding drum of this application is shown; Figure 3 This application shows Figure 2 Front view structural diagram; Figure 4 This application shows Figure 2 A structural diagram from the left side; Figure 5 This invention provides a schematic diagram of the internal structure of the pipe winding drum. Figure 6 This paper shows a schematic diagram of the structure of the bracket in the separated state of the winding shaft; Figure 7 A schematic diagram of the spiral locking rod of this application is shown; Figure 8 This application shows Figure 2 A magnified structural diagram of point A in the middle; Figure 9 This application shows Figure 5 A magnified structural diagram of point B in the middle section; Figure 10 This application shows Figure 5 A magnified structural diagram of point C in the middle; Figure 11 This application shows Figure 7 A magnified structural diagram of point D in the middle; Figure label: 1. Inner support; 101. Gear protective cover; 2. Pipe winding drum; 201. Directional connector; 202. Pipe winding shaft; 203. Pipe connector; 204. Connecting pipe spiral interface; 205. Shaft through-hole; 206. Driven bevel gear; 3. Air hose; 301. Hose spiral plug; 302. Air gun; 4. Side support; 401. Support screw hole; 402. Spiral locking rod; 403. Directional plug; 5. Support winding shaft; 501. Driven bevel gear; 502. Four-corner plug; 503. Control handle; 6. Airflow connector; 7. Outer support; 8. Airflow control pipe; 801. Outlet valve; 802. Branch valve; 803. Air pressure regulating valve; 804. Main valve; 9. Manifold; 10. Inert gas cylinder. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Example 1:

[0020] Please refer to Figures 1 to 11This utility model proposes a vehicle-mounted inert gas fire extinguishing device, comprising: an inner support 1, a pipe winding drum 2 rotatably connected inside the inner support 1, a jet hose 3 wound around the outside of the pipe winding drum 2, and an inert gas cylinder 10. A pipe winding shaft 202 inside the pipe winding drum 2 is rotatably connected to the inner support 1 at both ends via bearings. A pipe connecting pipe 203 is fixedly connected between the surface of the pipe winding drum 2 and the pipe winding shaft 202. A shaft through-hole 205 is opened at the left end of the pipe winding shaft 202, and the pipe connecting pipe 203 communicates with the shaft through-hole 205. The upper end of the pipe connecting pipe 203 is... A connecting pipe spiral interface 204 is provided. The left end of the pipe winding shaft 202 is rotatably connected to the airflow connecting pipe 6 via a bearing and a sealing ring. The other end of the airflow connecting pipe 6 is connected to the airflow control pipe 8, which is connected to the manifold 9. The manifold 9 is connected to the inert gas cylinder 10 via a pipe. One end of the jet hose 3 is fixedly connected to a hose spiral plug 301, which is spirally connected to the connecting pipe spiral interface 204. The other end of the jet hose 3 is fixedly connected to the jet gun 302. The left end of the pipe connecting pipe 203 is fixedly connected to the driven bevel gear 206, which is rotatably connected above the inner support 1. The support winding shaft 5 has its rear end fixedly connected to the driving bevel gear 501 meshing with the driven bevel gear 206, and its front end connected to the control handle 503. Inert gas is transported through pipelines to the manifold 9 and the airflow control pipe 8, and enters the airflow connecting pipe 6 through multiple control valves in the airflow control pipe 8. It then enters the jet hose 3 through the shaft throughlet 205 and the pipeline connecting pipe 203, and is precisely sprayed onto the target area by the jet gun 302 for fire extinguishing. The jet hose 3 is then wound up by the pipeline winding drum 2, improving the convenience of pipeline storage and organization. This design avoids the problem of excessively long pipes becoming coiled or tangled due to storage difficulties, which can hinder dragging and movement and affect the efficiency of fire rescue. It also avoids the problem of pipe knots affecting gas flow performance and restricting rescue effectiveness. At the same time, the jet hose 3 is connected to the connecting pipe spiral interface 204 through the hose spiral plug 301, and is connected to the airflow connecting pipe 6 through the pipe connecting pipe 203 and the rotating shaft through 205. Under the action of the rotational connection between the airflow connecting pipe 6 and the pipe winding rotating shaft 202, the jet hose 3 maintains its connection with the airflow connecting pipe 6 while rotating with the pipe winding drum 2.

[0021] In this embodiment, the upper edge of the left frame of the inner support 1 is connected to a gear protective cover 101 by screws. The gear protective cover 101 covers the top and left side of the driving bevel gear 501. The gear protective cover 101 protects the meshing area of ​​the driving bevel gear 501 and the driven bevel gear 206, reducing the probability of impurities entering the meshing area and causing jamming.

[0022] In this embodiment, the outer edges of the two side plates of the pipe winding drum 2 are radially distributed with directional insertion ports 201. A side support 4 is fixedly connected to the upper left frame of the inner support 1. The support winding shaft 5 is connected to the side support 4 through a bearing. The side support 4 has support screw holes 401 extending through the left and right sides. A spiral locking rod 402 is spirally connected inside the support screw holes 401. A directional plug 403 is fixedly connected to the right end of the spiral locking rod 402. The directional plug 403 is movably inserted into the directional insertion port 201 on the left side of the pipe winding drum 2. By installing the spiral locking rod 402 through the side support 4, rotating the spiral locking rod 402 can control the directional plug 403 to move left and right, so that the directional plug 403 is inserted into the directional insertion port 201, thereby circumferentially locking the pipe winding drum 2 and preventing the pipe winding drum 2 from rotating due to external force when the pipe is in the retracted state, which would cause the jet hose 3 to fall off.

[0023] In this embodiment, a four-corner plug 502 is fixedly connected to the front end of the bracket winding shaft 5, and a square hole sleeve is fixedly connected to the rear end of the control handle 503. The square hole sleeve is slidably connected to the four-corner plug 502 to realize the transmission of torque. The rotation of the bracket winding shaft 5 can be easily controlled by the control handle 503.

[0024] In this embodiment, an outer support 7 is provided outside the inner support 1. The manifold 9 is fixedly connected to the support plate above the outer support 7 through a ring frame. The outer support 7 provides stable support for the manifold 9 and the airflow control pipe 8. Example 2:

[0025] Based on Embodiment 1, the airflow control pipe 8 is equipped with an outlet valve 801, a branch valve 802, a pressure regulating valve 803, and a main valve 804, arranged from right to left. The main valve 804 controls the inert gas entering the airflow control pipe 8, and the pressure regulating valve 803 controls the gas pressure passing through the airflow control pipe 8 and entering the airflow connecting pipe 6. A branch pipe is provided in the area between the outlet valve 801 and the pressure regulating valve 803 in the airflow control pipe 8. The branch valve 802 is installed in the branch pipe and is normally closed. When connecting to an external pipeline, the external pipeline can be directly connected through the branch pipe, and the outlet valve 801 controls the gas flowing out of the airflow control pipe 8 and into the airflow connecting pipe 6.

[0026] In use, firstly, when using the vehicle-mounted inert gas fire extinguishing device for fire rescue, rotating the spiral locking rod 402 causes the directional plug 403 to be pulled out of the directional socket 201. Inert gas enters the manifold 9 and the airflow control pipe 8 from the inert gas cylinder 10 through the pipeline. Rotating to open the main valve 804 controls the air pressure flowing through the airflow control pipe 8 through the air pressure regulating valve 803. After the inert gas enters the airflow connecting pipe 6, it enters the jet hose 3 through the shaft throughlet 205 and the pipeline connecting pipe 203. The rescuer holds the jet gun 302 at the outer end of the jet hose 3. Move to the target area and spray inert gas into the target area using the jet gun 302 for fire rescue. After the rescue is completed, close the main valve 804 and the jet gun 302. Insert the square hole sleeve of the control handle 503 into the four-corner plug 502 and rotate the bracket winding shaft 5. Through the meshing connection between the active bevel gear 501 and the driven bevel gear 206, drive the pipe winding drum 2 to rotate and rewind the jet hose 3. After winding, rotate the spiral locking rod 402 to insert the directional plug 403 into the directional socket 201 and lock the pipe winding drum 2 circumferentially.

[0027] The aforementioned inert gas cylinder 10 is fixed to the inner wall of the fire truck's cargo compartment using brackets and clamps. The clamps wrap around the inert gas cylinder 10, with both ends fixed to the brackets. The brackets are fixed inside the cargo compartment of fire trucks, emergency rescue vehicles, etc., thus securing the inert gas cylinder 10 to the vehicle. The inert gas cylinder 10 has a capacity of 70L and contains inert gases such as nitrogen and carbon dioxide. Six to ten inert gas cylinders 10 can be fixed in sequence. The spray hose 3 is approximately 100m-150m long, and the pressure regulating valve 803 controls and regulates the pressure of the nitrogen, carbon dioxide, and other inert gases to 0.5-0.7MPa, meeting the fire extinguishing requirements of the vehicle-mounted inert gas fire extinguishing device.

[0028] This invention provides a vehicle-mounted inert gas fire extinguishing device, which is not limited to being installed on fire trucks. This small device can also be fixed on vehicles such as robotic transport vehicles. Traditional gas fire extinguishing fire trucks mostly use nitrogen to extinguish fires. This invention can be used in conjunction with demolition robots and can use carbon dioxide and nitrogen to extinguish fires. It is particularly suitable for drilling and extinguishing fires in hazardous chemical containers in ports, and for extinguishing fires in water-sensitive fire scenes and confined spaces such as libraries and communication equipment rooms.

[0029] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. Vehicle-mounted inert gas fire extinguishing device, including: The inner support (1), the pipe winding drum (2) rotatably connected inside the inner support (1), the jet hose (3) wound around the outside of the pipe winding drum (2), and the inert gas cylinder (10) are characterized in that the two ends of the pipe winding shaft (202) inside the pipe winding drum (2) are rotatably connected to the inner support (1) through bearings, the pipe winding drum (2) is fixedly connected to the pipe winding shaft (202) through a pipe connecting pipe (203), the left end of the pipe winding shaft (202) is provided with a shaft through hole (205), the pipe connecting pipe (203) is connected to the shaft through hole (205), the upper end of the pipe connecting pipe (203) is provided with a connecting pipe spiral interface (204), and the left end of the pipe winding shaft (202) is rotatably connected to the airflow connecting pipe (6) through a bearing and a sealing ring. The other end of the airflow connecting pipe (6) is connected to the airflow control pipe (8), the airflow control pipe (8) is connected to the manifold (9), the manifold (9) is connected to the inert gas cylinder (10) through the pipe, one end of the jet hose (3) is fixedly connected to the hose spiral plug (301), the hose spiral plug (301) is spirally connected to the connecting pipe spiral interface (204), the other end of the jet hose (3) is fixedly connected to the jet gun (302), the left end of the pipe connecting pipe (203) is fixedly connected to the driven bevel gear (206), the bracket winding shaft (5) is rotatably connected above the inner bracket (1), the rear end of the bracket winding shaft (5) is fixedly connected to the driving bevel gear (501) meshing with the driven bevel gear (206), and the front end of the bracket winding shaft (5) is connected to the control handle (503).

2. The vehicle-mounted inert gas fire extinguishing device according to claim 1, characterized in that, The upper edge of the left frame of the inner support (1) is connected to a gear guard (101) by screws. The gear guard (101) covers the top and left side of the active bevel gear (501).

3. The vehicle-mounted inert gas fire extinguishing device according to claim 1, characterized in that, The outer edges of the two side plates of the pipe winding drum (2) are radially distributed with directional insertion ports (201). The inner support (1) is fixedly connected to the upper left frame with a side support (4). The winding shaft (5) of the support is connected to the side support (4) through a bearing.

4. The vehicle-mounted inert gas fire extinguishing device according to claim 3, characterized in that, The side support (4) has a support screw hole (401) extending through the left and right sides, and a screw locking rod (402) is screwed inside the support screw hole (401).

5. The vehicle-mounted inert gas fire extinguishing device according to claim 4, characterized in that, The right end of the spiral locking rod (402) is fixedly connected to a directional plug (403), which is movably inserted into the directional socket (201) on the left side of the pipe winding drum (2).

6. The vehicle-mounted inert gas fire extinguishing device according to claim 1, characterized in that, The front end of the bracket winding shaft (5) is fixedly connected to a four-corner plug (502), and the rear end of the control handle (503) is fixedly connected to a square hole sleeve, which is slidably connected to the four-corner plug (502).

7. The vehicle-mounted inert gas fire extinguishing device according to claim 1, characterized in that, The inner support (1) is provided with an outer support (7), and the manifold (9) is fixedly connected to the support plate above the outer support (7) through a ring frame.

8. The vehicle-mounted inert gas fire extinguishing device according to claim 1, characterized in that, The airflow control pipe (8) is equipped with an outlet valve (801), a branch valve (802), a pressure regulating valve (803), and a main valve (804) from right to left.

9. The vehicle-mounted inert gas fire extinguishing device according to claim 1, characterized in that, The inert gas cylinder (10) is fixed to the inner wall of the carriage by a bracket and a clamp.

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