Fire extinguishing bag gas circuit filling mechanism for aviation fire extinguishing water tank

Abstract

The utility model discloses a fire extinguishing bag gas circuit filling mechanism for an aviation fire extinguishing water tank, which comprises a blast unit, a feeding unit, a hatch unit, a feeding unit, a dragging unit and a sealing pull ring component unit, and the blast unit, the feeding unit, the hatch unit and the feeding unit are sequentially abutted and fixedly connected. One end of the dragging unit is detachably connected with the feeding unit, the other end of the dragging unit is fastened with the sealing pull ring assembly unit, the air blowing unit and the feeding unit are installed on the outer side of the top of the water tank, the hatch unit, the feeding unit and the dragging unit are located in the water tank, and the sealing pull ring assembly unit is located on the outer side of the water tank. The mechanism solves the problems that in the prior art, when an aviation fire extinguishing water tank is filled with fire extinguishing bags, the filling efficiency is low, the fire extinguishing bags are unsmooth to convey, and a hose is unsmooth to move.

Description

TECHNICAL FIELD

[0001] The utility model relates to aviation fire extinguishing equipment and material conveying technical field, concretely is a kind of fire extinguishing bag gas path filling mechanism for aviation fire extinguishing water tank. BACKGROUND

[0002] As an efficient fire-fighting means, aviation fire extinguishing has been widely applied in the global scope in recent years. With the continuous progress of aviation technology, the performance of fire-fighting aircraft and helicopters is continuously improved, and the flight capability, load, endurance time and fire extinguishing efficiency are significantly improved. Modern aviation fire extinguishing will increasingly rely on information technology and big data analysis, through real-time monitoring, weather forecasting and fire simulation, etc. Means, the fire situation can be more accurately evaluated, and a more scientific fire extinguishing plan can be developed. With the global climate change and the frequent occurrence of extreme weather phenomena, the frequency of forest fires and urban fires and other disasters is increasing, and the market demand for efficient and rapid aviation fire extinguishing services is also increasing. With the progress of technology, policy support and increasing market demand, aviation fire extinguishing will play an increasingly important role in fire emergency management.

[0003] In the prior art in the field of aviation fire extinguishing, gas path conveying technology is widely used in powder material conveying and particle transportation fields, and has the advantages of long-distance transportation and strong flexibility. Although it has significant advantages in these applications, it has certain limitations for conveying flexible materials. When the material is a flexible object, it is easy to be stuck, accumulated and other problems due to pipe wall friction and excessive bending angle of hose, which affects the stability of airflow and conveying efficiency.

[0004] The existing fire extinguishing aircraft water tank filling fire extinguishing material such as hydrogel or other fire extinguishing agent mainly relies on manual filling or mechanical filling. Manual filling is low in efficiency and difficult to meet the needs of large-scale and emergency fire extinguishing tasks; mechanical filling can improve efficiency, but the currently used mechanical or pressure filling is mainly in powder and liquid state, which is not suitable for filling flexible fire extinguishing bags. In addition, for irregularly shaped aviation fire extinguishing water tanks, manual filling of fire extinguishing bags cannot normally slide to the bottom of the water tank along the slope, and is blocked in the middle of the water tank, resulting in the final failure to fill. When the existing hose moves in the water tank, the outlet end of the hose is stuck directly below the water tank hatch, or deviates left and right in the slope and finally gets stuck on the water tank wall, which cannot continue to move down or transport the fire extinguishing bag.

[0005] After many long-term operations and practices, we found that the main defects existing in the prior art are as follows:

[0006] 1. Low efficiency and easy to block: the existing manual filling method is low in efficiency, and is easy to be blocked during filling, which is difficult to meet the large-scale and high-efficiency fire extinguishing demand;

[0007] 2. The problem of jamming and accumulation during material conveying: the existing hose conveying technology is prone to jamming and accumulation of fire extinguishing bags when handling flexible fire extinguishing bag bodies due to pipe wall friction and large hose bending angle, resulting in smooth conveying of materials;

[0008] 3. The problem of hose jamming: the hose in the water tank is offset and bent due to the lack of guidance at the outlet end of the hose, and finally jams;

[0009] Therefore, the existing technology still has a large room for improvement in improving filling efficiency, ensuring smooth conveying of materials and smooth movement of the hose. Content of the utility model

[0010] The utility model discloses a fire extinguishing bag gas path filling mechanism for an aviation fire extinguishing water tank, which solves the problems of low filling efficiency, unsmooth conveying of fire extinguishing bags and unsmooth movement of the hose when filling fire extinguishing bags in the aviation fire extinguishing water tank in the prior art.

[0011] Technical scheme: in order to realize the above object, the utility model discloses a fire extinguishing bag gas path filling mechanism for an aviation fire extinguishing water tank, which comprises: a blowing unit, a feeding unit, a hatch unit, a feeding unit, a dragging unit and a sealing pull ring assembly unit.

[0012] The blowing unit, the feeding unit, the hatch unit and the feeding unit are sequentially close and fixedly connected, one end of the dragging unit is detachably connected with the feeding unit, the other end of the dragging unit is fastened with the sealing pull ring assembly unit, the blowing unit and the feeding unit are installed on the top outside of the water tank, the hatch unit, the feeding unit and the dragging unit are located in the water tank, and the sealing pull ring assembly unit is located outside the water tank.

[0013] As a further optimization of the utility model, the height position of the blowing unit is higher than that of the feeding unit.

[0014] As a further optimization of the utility model, the blowing unit for providing power to the mechanism comprises: an air filter, a centrifugal fan and a fan adapter, the air inlet of the centrifugal fan is connected with the air filter, and the air outlet of the centrifugal fan is connected with the fan adapter.

[0015] As a further optimization of the utility model, the feeding unit for conveying fire extinguishing bags to the mechanism comprises: a fire extinguishing bag feeding tee and a fire extinguishing bag loading guide groove located on the side of the fire extinguishing bag feeding tee, and the air inlet of the fire extinguishing bag feeding tee is connected with the fan adapter on the blowing unit.

[0016] As a further preferred embodiment of the present application, the feeding unit comprises: a hose, a hose outlet end piece, a clamp and a hose reinforcing rib, the inlet of the hose is connected to the air outlet of the fire extinguishing bag inlet tee through the clamp, the outlet of the hose is fastened through the clamp and the hose outlet end piece, the outer side of the sidewall of the hose is provided with a plurality of parallelly arranged hose reinforcing ribs, the hose reinforcing rib has a slow bending support device like a spring tube, the hose reinforcing rib can also be replaced by other devices with the same function such as a steel wire, a plastic strip and the like, which can effectively avoid the problem of large-angle bending of the hose in the bending process, and large-angle bending has the greatest impact on gas path transportation, so that the fire extinguishing bag cannot be accumulated and blocked in the hose.

[0017] As a further preferred embodiment of the present application, the inner wall of the hose is coated with a low-friction coating, and the low-friction coating is a Teflon coating, i.e. a PTFE coating, which can reduce the probability of the fire extinguishing bag being stuck in the hose by reducing friction, thereby improving the efficiency of gas path transportation of the fire extinguishing bag.

[0018] As a further preferred embodiment of the present application, the hatch unit comprises: a hatch cover, a hatch reinforcing frame and a steel cable buckle hanging point, the hatch reinforcing frame is sleeved on the hose in a transition fit manner, the hatch cover is installed on the hatch reinforcing frame through a hinge, and the steel cable buckle hanging point is mounted on the hatch cover.

[0019] As a further preferred embodiment of the present application, the towing unit comprises: a quick-release buckle, a stainless steel cable with an anti-corrosion polymer protective sleeve and a water tank wall with a through hole, one end of the stainless steel cable with the anti-corrosion polymer protective sleeve is fastened with the quick-release buckle, the other end of the stainless steel cable with the anti-corrosion polymer protective sleeve passes through the water tank wall and is fixedly connected with a sealing pull ring assembly unit, and the quick-release buckle of the towing unit is detachably installed on the hose outlet end piece or the steel cable buckle hanging point, which is clamped and released through the buckle, so that the quick-release buckle is installed on the hose outlet end piece or the steel cable buckle hanging point.

[0020] As a further preferred embodiment of the present application, the sealing pull ring assembly unit comprises: a coaxially arranged polyester plug, a cup head and a pull ring, the polyester plug located on the inner side of the water tank is fixed with the water tank wall through a thread, and mainly functions as sealing, the cup head located on the outer side of the water tank is fastened with the polyester plug through a thread, and functions to strengthen the sealing property and provide a storage space for the pull ring, and the stainless steel cable with the anti-corrosion polymer protective sleeve is connected with the pull ring by passing through the axial positions of the polyester plug and the cup head, the pull ring can be used as an air-tight plug of the sealing pull ring assembly, and when the pull ring is not used, a threaded cap is screwed on the outermost end of the cup head.

[0021] In the installation of the sealing pull ring assembly unit, the cup head is inserted into the hole on the water tank wall, and the internal thread on the polyester plug is matched with the external thread on the cup head and is clamped into the hole in the middle of the water tank wall, since the technology belongs to the prior art known in the art and is widely used in the mechanical field, which will not be repeated here.

[0022] As a further preferred embodiment of the present application, the fire extinguishing bag enters the fire extinguishing bag inlet three-way valve from the fire extinguishing bag loading guide groove, and then enters the water tank from the hose outlet end piece through the hose.

[0023] Advantages: compared with the prior art, the fire extinguishing bag gas path filling mechanism for the aviation fire extinguishing water tank has the following advantages:

[0024] (1) By adopting the form of gas path conveying fire extinguishing bags, the gas path wind speed can reach 25 m / s, and the fire extinguishing bag guide groove for facilitating loading of fire extinguishing bags is arranged in the hose, which can quickly load and send the fire extinguishing bags into the water tank, and can solve the problems of slow manual filling and blockage found during manual filling;

[0025] (2) The slow bending support device such as spring pipe is installed on both sides of the hose, which can also be replaced by other devices such as steel wire and plastic strip with the same function, which can avoid the problem of large angle bending of the hose in the bending process. Large angle bending has the greatest impact on gas path conveying, and avoiding large angle bending can prevent fire extinguishing bags from accumulating and blocking in the hose;

[0026] (3) A layer of low-friction coating is sprayed on the inner wall of the hose as a low-friction coating, or other coatings with similar friction-reducing function, which can reduce the probability of fire extinguishing bags being stuck in the hose, thereby improving the efficiency of fire extinguishing bag gas path conveying;

[0027] (4) The stainless steel cable with a corrosion-resistant polymer protective sleeve is extended into the water tank through the sealing perforation at the rear of the water tank and connected with the outlet end on the hose. During the process of inserting the hose into the water tank, pulling the stainless steel cable can prevent the hose from running off, so that the hose can maintain the direction along the slope. When reaching the bottom end, continue to pull the pull ring on the sealing pull ring assembly, so that the hose can be pulled tightly, and the hose will not be bent more than 90°. This design is to ensure that the hose will not be stuck during movement, and the gas path is more smooth. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 The connection diagram of the present application;

[0029] Figure 2 The structure diagram of the present application installed on the water tank;

[0030] Figure 3 The sectional view of the hose;

[0031] Figure 4 is a schematic view of a local structure of a hose;

[0032] Figure 5 is a local enlarged view of a hatch reinforcing frame;

[0033] Figure 6 is a schematic view of a structure of a sealing pull ring assembly unit;

[0034] Figure 7 is a full sectional view of a sealing pull ring assembly unit.

[0035] Figure 8 is a schematic view of a hose outlet end piece and quick release buckle connection;

[0036] Figure 9 is a schematic view of a quick release buckle and a wire cable buckle hanging point connection DETAILED DESCRIPTION

[0037] The utility model will be further clarified below in combination with the drawings and specific embodiments.

[0038] As shown in the drawings, the utility model discloses a fire extinguishing bag gas path filling mechanism for aviation fire extinguishing water tank, it includes the air blowing unit that is composed of air filter 1, centrifugal fan 2 and fan adapter 3, the inlet unit that is composed of fire extinguishing bag inlet tee 4, fire extinguishing bag loading guide groove 5, the hatch unit that is composed of hatch cover 6, hatch reinforcing frame 7 and wire cable buckle hanging point 17, the feeding unit that is composed of hose 8, hose outlet end piece 9, clamp 10, low friction coating 15 and hose reinforcing rib 16, the drag unit that is composed of quick release buckle 11, stainless steel cable 12 with anticorrosive polymer protective sleeve and water tank wall 13 and the sealing pull ring assembly that is composed of polyester plug 18, cup head 19, pull ring 20.

[0039] The air blowing unit, the inlet unit, the hatch unit and the feeding unit are in close contact and fixedly connected in sequence, one end of the drag unit is detachably connected with the feeding unit, the other end of the drag unit is fastened with the sealing pull ring assembly unit, the air blowing unit and the inlet unit are installed on the top outer side of the water tank, the hatch unit, the feeding unit and the drag unit are located in the water tank, the sealing pull ring assembly unit is located on the outer side of the water tank, and the height position of the air blowing unit is higher than that of the feeding unit.

[0040] The air inlet of centrifugal fan 2 is connected with air filter 1, the air outlet of centrifugal fan 2 is connected with fan adapter 3, the air inlet of fire extinguishing bag inlet tee 4 is connected with fan adapter 3 on the air blowing unit, the inlet of hose 8 is connected with the air outlet of fire extinguishing bag inlet tee 4 through clamp 10, the outlet of hose 8 is fastened through clamp 10 and hose outlet end piece 9, hatch reinforcing frame 7 is sleeved on hose 8, hatch cover 6 is installed on hatch reinforcing frame 7 through hinge, and steel cable buckle hanging point 17 is installed on hatch cover 6.

[0041] One end of the stainless steel cable 12 with anti-corrosion polymer protective sleeve is fastened with the quick-release buckle 11, and the other end of the stainless steel cable 12 with anti-corrosion polymer protective sleeve is connected with the pull ring 20 through the axial position of the water tank wall 13, the polyester plug 18 and the cup head 19, and the said towing unit includes the quick-release buckle 11 which is detachably mounted on the hose outlet end piece 9 or the steel cable buckle hanging point 17, the polyester plug 18 inside the water tank 100 is fixed with the water tank wall 13 by screwing, and the cup head 19 outside the water tank 100 is fastened with the polyester plug 18 by screwing.

[0042] Embodiment

[0043] When the water tank is normally at rest, the hatch cover 6 is in a closed state, the quick-release buckle 11 is buckled on the steel cable buckle hanging point 17 in the hatch cover 6, and the other end is connected with the sealing pull ring assembly 14 through the water tank wall 13, at this time the water tank is in a sealed state;

[0044] When preparing to fill the fire extinguishing bag, first lift the air blowing unit and the feeding unit components to the height of the hatch reinforcement frame 7, keep the hose 8 falling downward, make the fire extinguishing bag more smooth in the whole conveying process, then open the hatch cover 6, remove the quick-release buckle 11, then buckle the quick-release buckle 11 on the metal ring of the hose outlet end piece 9, then put the hose outlet end piece 9 and the hose 8 into the water tank through the hatch of the hatch reinforcement frame 7, and continuously pull the pull ring 20 at the sealing pull ring assembly 14 during the process of putting into the water tank, so as to ensure that the hose feeding gas path will not be blocked due to friction or port deviation from the axis when sliding downward, the hose reinforcing rib 16 on the hose 8 avoids the situation that the fire extinguishing bag is blocked and accumulated in the conveying process due to large angle bending, except that the 200mm at the connection of the fire extinguishing bag feeding tee 4 needs not to be put into the water tank to ensure the smoothness of the gas path, the others need to be put into the water tank, when the pull ring at the sealing pull ring assembly 14 cannot be pulled and rebounds, it indicates that the hose outlet end piece 9 has reached the bottom of the water tank, and the preparation stage is completed.

[0045] In the filling stage of the fire extinguishing bag, the power switch of the centrifugal fan 2 is turned on, the fan starts to blow air into the fire extinguishing bag feeding tee 4, at this time the fire extinguishing bag package is taken off, the fire extinguishing bag package has the function of restraint, so the direction is relatively neat when taken out, the fire extinguishing bag is quickly put into the fire extinguishing bag loading guide groove 5, the guide groove has the function of guiding the direction of the fire extinguishing bag, the fire extinguishing bag is pushed into the fire extinguishing bag feeding tee 4 along the guide groove, and is blown away by the wind in the fire extinguishing bag feeding tee 4, and the next fire extinguishing bag is prepared, then put into the guide groove again, the centrifugal fan 2 is kept on during the whole loading period to ensure the smoothness of conveying, and the low-friction coating 15 in the hose 8 can be coated with Teflon to reduce the internal friction of the pipe.

[0046] When the fire extinguishing bags are filled to the bottom of the water tank, the filling of the fire extinguishing bags is completed, at this time the hose 8 is pulled out of the water tank, and the pulling out is stopped when the hose outlet end piece 9 comes out of the hatch reinforcing frame 7, the quick release buckle 11 hung on the hose outlet end piece 9 is taken off and buckled on the steel cable buckle hanging point 17 of the hatch cover 6 again, then the hatch cover 6 is closed, and the buckle ring of the sealing pull ring assembly 14 is also reset due to the pulling out of the hose 8, the equipment storage is completed, and the fire extinguishing task can be performed.

[0047] The above embodiment is only for illustrating the technical concept and characteristics of the present application, the purpose is to enable the skilled in the art to understand the content of the present application and to implement it, and it cannot limit the protection scope of the present application. Any equivalent transformation or modification made according to the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A fire extinguishing bag gas path filling mechanism for an aerial fire extinguishing water tank, characterized by: It includes: blowing unit, feeding unit, hatch unit, feeding unit, drag unit and sealing pull ring assembly unit; The blowing unit, feeding unit, hatch unit and feeding unit are sequentially close and fixed, one end of the drag unit is detachably connected with the feeding unit, the other end of the drag unit is fixed with the sealing pull ring assembly unit, the blowing unit and the feeding unit are installed on the top outside of the water tank (100), the hatch unit, the feeding unit and the drag unit are located in the water tank (100), and the sealing pull ring assembly unit is located outside the water tank (100).

2. The fire-extinguishing bag gas path filling mechanism for the aerial fire-extinguishing water tank according to claim 1, characterized in that: The height position of the blowing unit is higher than that of the feeding unit.

3. The fire-extinguishing bag gas path filling mechanism for the aerial fire-extinguishing water tank according to claim 1, characterized in that: The blowing unit for providing power to the mechanism comprises: an air filter (1), a centrifugal fan (2) and a fan adapter (3), the air inlet of the centrifugal fan (2) is connected with the air filter (1), and the air outlet of the centrifugal fan (2) is connected with the fan adapter (3).

4. The fire-extinguishing bag gas path filling mechanism for the aerial fire-extinguishing water tank according to claim 1, characterized in that: The feeding unit for conveying fire extinguishing bags to the mechanism comprises: a fire extinguishing bag feeding tee (4) and a fire extinguishing bag loading guide groove (5) located on the side of the fire extinguishing bag feeding tee (4), and the air inlet of the fire extinguishing bag feeding tee (4) is connected with the fan adapter (3) on the blowing unit.

5. The fire-extinguishing bag gas path filling mechanism for the aerial fire-extinguishing water tank according to claim 1, characterized in that: The feeding unit comprises: a hose (8), a hose outlet end piece (9), a clamp (10) and a hose reinforcing rib (16), the inlet of the hose (8) is connected with the air outlet of the fire extinguishing bag feeding tee (4) through the clamp (10), the outlet of the hose (8) is fixed through the clamp (10) and the hose outlet end piece (9), and the outer side of the sidewall of the hose (8) is provided with a plurality of parallelly arranged hose reinforcing ribs (16).

6. The fire-extinguishing bag gas path filling mechanism for the aerial fire-extinguishing water tank according to claim 5, characterized in that: The inner wall of the hose (8) is coated with a low-friction coating (15).

7. The fire-extinguishing bag gas path filling mechanism for the aerial fire-extinguishing water tank according to claim 1, characterized in that: The hatch unit comprises: a hatch cover (6), a hatch reinforcing frame (7) and a steel cable buckle hanging point (17), the hatch reinforcing frame (7) is sleeved on the hose (8), the hatch cover (6) is hingedly installed on the hatch reinforcing frame (7), and the steel cable buckle hanging point (17) is arranged on the hatch cover (6).

8. The fire-extinguishing bag gas path filling mechanism for the aerial fire-extinguishing water tank according to claim 1, characterized in that: The drag unit comprises: a quick-release buckle (11), a stainless steel cable (12) with a corrosion-resistant polymer protective sleeve and a water tank wall (13) with a through hole, one end of the stainless steel cable (12) with the corrosion-resistant polymer protective sleeve is fixed with the quick-release buckle (11), the other end of the stainless steel cable (12) with the corrosion-resistant polymer protective sleeve passes through the water tank wall (13) and is fixed with the sealing pull ring assembly unit, and the quick-release buckle (11) of the drag unit is detachably installed on the hose outlet end piece (9) or the steel cable buckle hanging point (17).

9. The fire bag gas path filling mechanism for an aerial fire water tank of claim 1, wherein: The sealing pull ring assembly unit comprises: a polyester plug (18), a cup head (19) and a pull ring (20) arranged coaxially, the polyester plug (18) located on the inside of the water tank (100) is fixed with the water tank wall (13) through threads, the cup head (19) located on the outside of the water tank (100) is fixed with the polyester plug (18) through threads, and the stainless steel cable (12) with the corrosion-resistant polymer protective sleeve is connected with the pull ring (20) by passing through the axial positions of the polyester plug (18) and the cup head (19).

10. The fire bag gas path filling mechanism for an aerial fire water tank of claim 1, wherein: The fire extinguishing bag enters the water tank (100) through the hose (8) from the hose outlet end piece (9) after entering the fire extinguishing bag inlet tee (4) from the fire extinguishing bag loading guide groove (5).

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