Helicopter fire extinguishing and water discharging cabin door and fire-fighting helicopter

Abstract

The utility model discloses a helicopter fire extinguishing and water discharging cabin door and a fire-fighting helicopter and relates to the field of fire-fighting equipment. The helicopter fire-fighting water-discharging cabin door is used for opening and closing a water-discharging opening in the bottom of the helicopter fire-fighting water one side of the cabin door body is hinged to a helicopter fire-fighting water tank, the two ends of the rotating shaft are rotatably connected to the helicopter fire-fighting water tank respectively, the driving mechanism is used for driving the rotating shaft to rotate in a reciprocating mode, and the connecting rod assemblies are connected with the cabin door body and the rotating shaft respectively. The connecting rod assembly is used for driving the cabin door body to rotate to open and close the water outlet when the rotating shaft reciprocates. According to the helicopter fire extinguishing and water discharging cabin door and the fire-fighting helicopter, the helicopter fire extinguishing and water discharging cabin door can be stably driven to rotate to open the water discharging opening in the bottom of the helicopter fire water tank to extinguish water poured from the lower portion, and the problem that the fire extinguishing mode of a fire extinguishing water tank water cannon carried by a current helicopter is single and limited is solved.

Description

Technical Field

[0001] This application relates to the field of fire-fighting equipment, and more specifically, to a helicopter fire-fighting water extinguishing hatch and a fire-fighting helicopter. Background Technology

[0002] With the continuous development of urban construction, there are more and more high-rise buildings in cities, and they are getting taller and taller. The effectiveness of fire-fighting equipment inside the building and ground fire support is very limited when fighting fires in high-rise buildings. However, using helicopters equipped with fire-fighting water tanks and water cannons can reach the scene in the shortest time and is not limited by height or ground roads. The role of helicopters in high-rise building fire fighting is becoming more and more significant.

[0003] However, the current method of using water cannons to supply water to helicopters equipped with fire extinguishing water tanks results in a small water flow rate, which cannot effectively carry out fire extinguishing tasks, greatly reducing fire extinguishing efficiency, delaying the golden time for rescue, and making it difficult to give full play to the fire extinguishing advantages of helicopter fire extinguishing water tanks. Utility Model Content

[0004] The purpose of this application is to provide a helicopter fire extinguishing water drain door and a fire-fighting helicopter, which can stably drive the helicopter fire extinguishing water drain door to rotate and open the drain outlet at the bottom of the helicopter fire water tank to pour water down for fire extinguishing.

[0005] This application is implemented as follows:

[0006] This application provides a helicopter fire extinguishing water drain door for opening and closing the drain outlet at the bottom of the helicopter fire water tank. It includes a door body hinged to the helicopter fire water tank on one side, a rotating shaft rotatably connected to the helicopter fire water tank at both ends, a drive mechanism for driving the rotating shaft to reciprocate, and multiple linkage assemblies that connect the door body and the rotating shaft respectively. The linkage assemblies are used to drive the door body to rotate and open / close the drain outlet when the rotating shaft reciprocates.

[0007] In some alternative embodiments, the linkage assembly includes a pivot linkage fixedly sleeved on a pivot, an adjusting rotating seat connected to the hatch body, and at least one C-shaped rotating linkage, the two ends of which are hinged to the pivot linkage and the adjusting rotating seat, respectively.

[0008] In some alternative embodiments, at least one linkage assembly further includes a support base connected to the helicopter fire water tank, a hinge base connected to the door body, and at least one U-shaped fixed link, with the support base and the hinge base respectively hinged at both ends of the fixed link.

[0009] In some alternative implementations, the adjusting rotating seat includes at least two connecting posts connected to the hatch body, at least two connecting plates fixedly sleeved on each connecting post, and multiple connecting screws. Each connecting screw passes through and connects to each connecting plate by a thread, and the rotating connecting rod is hinged to a connecting plate by a pin.

[0010] In some alternative implementations, the pivot link and the pivot are connected by an interference fit via at least one retaining pin.

[0011] This application also provides a fire-fighting helicopter, which includes a helicopter fire-fighting water tank with at least one drain outlet at the bottom and at least one of the above-mentioned helicopter fire-fighting water drain doors.

[0012] In some alternative implementations, the bottom of the helicopter fire tank is provided with multiple transverse partitions, and the pivot of the helicopter fire extinguishing water discharge door can rotatably pass through each transverse partition.

[0013] In some alternative implementations, the bottom of the helicopter fire tank is provided with multiple longitudinal baffles, each of which is connected to a transverse baffle.

[0014] In some alternative implementations, the diaphragm is also provided with multiple through holes.

[0015] The beneficial effects of this application are as follows: The helicopter fire extinguishing water discharge hatch provided by this application is used to open and close the water outlet at the bottom of the helicopter fire water tank. It includes a hatch body hinged to the helicopter fire water tank on one side, a rotating shaft rotatably connected to the helicopter fire water tank at both ends, a drive mechanism for driving the rotating shaft to reciprocate, and multiple linkage assemblies respectively connecting the hatch body and the rotating shaft. The linkage assemblies are used to drive the hatch body to rotate and open / close the water outlet when the rotating shaft reciprocates. The helicopter fire extinguishing water discharge hatch and fire-fighting helicopter provided by this application can stably drive the helicopter fire extinguishing water discharge hatch to rotate and open the water outlet at the bottom of the helicopter fire water tank to pour water down for fire extinguishing, solving the problem of the current single and limited fire extinguishing method of helicopter-mounted fire extinguishing water tanks and water cannons. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A partial structural diagram from a first perspective showing the connection between the bottom wall of the helicopter fire water tank and the helicopter fire extinguishing water discharge door of the fire-fighting helicopter provided in the embodiments of this application;

[0018] Figure 2 A partial structural diagram from a second perspective showing the connection between the bottom wall of the helicopter fire water tank and the helicopter fire extinguishing water discharge door of the fire-fighting helicopter provided in the embodiments of this application;

[0019] Figure 3 This is a partial structural diagram of the fire-fighting helicopter's cabin door body connected to a rotating shaft via a linkage assembly, as provided in an embodiment of this application.

[0020] In the diagram: 100, hatch body; 110, pivot; 120, drive mechanism; 200, linkage assembly; 210, pivot linkage; 220, adjusting rotating seat; 221, connecting column; 222, connecting plate; 223, connecting screw; 224, pin; 230, rotating linkage; 240, support seat; 250, hinge seat; 260, fixed linkage; 270, fixed pin; 300, helicopter fire water tank; 310, drain outlet; 320, transverse bulkhead; 330, longitudinal bulkhead; 340, through hole. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0027] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] The following describes in further detail the features and performance of the helicopter fire-fighting and water-discharging hatch and the fire-fighting helicopter of this application, with reference to the embodiments.

[0029] like Figure 1 , Figure 2 and Figure 3As shown in the figure, this application embodiment provides a fire-fighting helicopter. The bottom of the fire-fighting helicopter is connected to a helicopter fire-fighting water tank 300. The bottom of the helicopter fire-fighting water tank 300 is provided with two symmetrically arranged water outlets 310. The helicopter fire-fighting water tank 300 is also connected to a pair of helicopter fire-fighting water discharge doors that can rotatably open and close the two water outlets 310. Each helicopter fire-fighting water discharge door includes a door body 100 hinged to the helicopter fire-fighting water tank 300 on one side, a rotating shaft 110 rotatably connected to the helicopter fire-fighting water tank 300 at both ends, a drive mechanism 120 for driving the rotating shaft 110 to reciprocate, and five doors respectively connected to the door body. The linkage assembly 200 of the shaft 100 and the rotating shaft 110, five linkage assemblies 200 are arranged at intervals along the length of the rotating shaft 110. The linkage assembly 200 is used to drive the door body 100 to rotate and open / close the drain outlet 310 when the rotating shaft 110 reciprocates. The bottom wall of the helicopter fire water tank 300 is provided with four parallel transverse bulkheads 320. The rotating shafts 110 of the two helicopter fire extinguishing drain doors can rotatably pass through each transverse bulkhead 320. Each transverse bulkhead 320 is also provided with two through holes 340. The bottom wall of the helicopter fire water tank 300 is also provided with three parallel longitudinal bulkheads 330. Each longitudinal bulkhead 330 is connected to each transverse bulkhead 320.

[0030] Each linkage assembly 200 includes a rotating shaft connecting rod 210 fixedly sleeved on a rotating shaft 110, an adjusting rotating seat 220 connected to the hatch body 100, and two C-shaped rotating connecting rods 230. The rotating shaft connecting rod 210 and the rotating shaft 110 are connected by an interference fit through a fixing pin 270. The adjusting rotating seat 220 includes two connecting posts 221 connected to the hatch body 100, two connecting plates 222 fixedly sleeved on each connecting post 221, and three connecting screws 223. Each connecting screw 223 passes through and connects to each connecting plate 222 by thread. Rotating links 230 are symmetrically arranged on both sides of the rotating shaft link 210, and the two ends of each rotating link 230 are respectively hinged to a connecting plate 222 of the rotating shaft link 210 and the adjusting rotating seat 220 via pins 224. The two link assemblies 200 at both ends also include a support seat 240 connected to the helicopter fire water tank 300, a hinge seat 250 connected to the door body 100, and two U-shaped fixed links 260. The two fixed links 260 are symmetrically arranged on both sides of the support seat 240, and the two ends of each fixed link 260 are respectively hinged to the support seat 240 and the hinge seat 250. In this embodiment, the drive mechanism 120 includes a hydraulic pump and a hydraulic motor connected thereto.

[0031] The fire-fighting helicopter provided in this embodiment has a helicopter fire-fighting water tank 300 at its bottom, and two symmetrically arranged water outlets 310 at the bottom of the fire-fighting water tank 300. The fire-fighting water tank 300 is hinged to a pair of helicopter fire-fighting water outlet doors that can rotatably open and close the two water outlets 310. When it is necessary to control the helicopter fire-fighting water outlet doors to rotate and open the water outlets 310, the control drive mechanism 120 pushes the rotating shaft 110 to rotate, causing the rotating shaft 110 to drive the rotating shaft connecting rod 210 to rotate. When the rotating shaft connecting rod 210 rotates, it drives the door body 100 downward to rotate through the connected adjusting rotating seat 220, opening the water outlets 310. This allows water from the helicopter fire-fighting water tank 300 to flow down through the water outlets 310 to the buildings and forests below for fire extinguishing. Simultaneously, the downward rotation of the door body 100 drives the two U-shaped fixed connecting rods 260 synchronously through the hinge seat 250. When the rotating shaft 110 rotates to the maximum opening angle, causing the rotating shaft connecting rod 210 to drive the door body 100 downward through the connected adjusting rotating seat 220, the middle part of the U-shaped fixed connecting rod 260 presses against the bottom of the helicopter fire water tank 300 and pulls the door body 100, so that the door body 100 is balanced by force and keeps open to achieve stable water discharge. When the water discharge is completed and it is necessary to control the helicopter fire extinguishing water discharge door to rotate and close the water outlet 310, it is only necessary to control the drive mechanism 120 to push the rotating shaft 110 to rotate in the opposite direction, so that the rotating shaft 110 drives the rotating shaft connecting rod 210 to rotate in the opposite direction, and when the rotating shaft connecting rod 210 rotates in the opposite direction, it drives the door body 100 to rotate upward through the connected adjusting rotating seat 222 to close the water outlet 310. At the same time, when the door body 100 rotates upward, it drives the two U-shaped fixed connecting rods 260 to rotate in the opposite direction synchronously to reset through the hinge seat 250.

[0032] The rotating shaft connecting rod 210 and the rotating shaft 110 are connected by an interference fit through a fixing pin 270. This ensures that the rotating shaft connecting rod 210 is stably connected to the rotating shaft 110 and rotates with the rotating shaft 110 to drive the door body 100 to rotate and open / close the drain outlet 310. The bottom wall of the helicopter fire water tank 300 is provided with four parallel transverse partitions 320. The rotating shafts 110 of the two helicopter fire extinguishing drain doors can rotatably pass through each transverse partition 320, ensuring that the rotating shafts 110 of the helicopter fire extinguishing drain doors are stably connected to the helicopter fire water tank 300 and rotate to drive the door body 100 to rotate and open / close the drain outlet 310. Each transverse partition... The plate 320 is also provided with two through holes 340, which can ensure that the water in the helicopter fire water tank 300 flows through the through holes 340 to maintain the balance of the helicopter fire water tank 300's center of gravity and prevent changes in the center of gravity of the helicopter fire water tank 300 from affecting the flight of the fire-fighting helicopter; the bottom wall of the helicopter fire water tank 300 is also provided with three parallel longitudinal partitions 330, each longitudinal partition 330 is connected to each transverse partition 320, which can connect the longitudinal partitions 330 and the transverse partitions 320 into a whole to effectively improve the structural strength and stability, and ensure that the rotating shaft 110 is stably connected to the helicopter fire water tank 300 and rotates to drive the door body 100 to rotate to open and close the drain outlet 310.

[0033] In other alternative embodiments, the bottom of the helicopter fire water tank 300 may be provided with one, three or more water outlets 310, and each water outlet 310 may be opened and closed through a helicopter fire extinguishing water release hatch connected to the helicopter fire water tank 300 and corresponding to the water outlet 310.

[0034] In other alternative embodiments, the bottom wall of the helicopter fire water tank 300 may also be provided with one, two, three, or four or more transverse partitions 320.

[0035] In other alternative embodiments, the bottom wall of the helicopter fire water tank 300 may also be provided with one, two or more longitudinal partitions 330.

[0036] In other alternative embodiments, each helicopter fire extinguishing and water discharge hatch may also include one, two, three, four or five or more linkage assemblies 200.

[0037] In other alternative embodiments, each link assembly 200 may also include one, three or more rotating links 230.

[0038] In other alternative embodiments, each link assembly 200 may also include one, three or more fixed links 260.

[0039] The embodiments described above are some, but not all, of the embodiments of this application. The detailed description of the embodiments of this application is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

Claims

1. A helicopter fire extinguishing water drain door, used to open and close the drain outlet at the bottom of the helicopter fire extinguishing water tank, characterized in that, It includes a door body hinged to a helicopter fire water tank on one side, a rotating shaft rotatably connected to the helicopter fire water tank at both ends, a drive mechanism for driving the rotating shaft to reciprocate, and a plurality of linkage assemblies respectively connecting the door body and the rotating shaft. The linkage assemblies are used to drive the door body to rotate and open / close the drain outlet when the rotating shaft reciprocates.

2. The helicopter fire-fighting and water-discharging hatch according to claim 1, characterized in that, The linkage assembly includes a rotating shaft linkage fixedly sleeved on the rotating shaft, an adjusting rotating seat connected to the hatch body, and at least one C-shaped rotating linkage. The two ends of the rotating linkage are respectively hinged to the rotating shaft linkage and the adjusting rotating seat.

3. The helicopter fire-fighting and water-discharging hatch according to claim 2, characterized in that, At least one of the linkage assemblies further includes a support base connected to the helicopter fire water tank, a hinge base connected to the door body, and at least one U-shaped fixed link, the two ends of which are respectively hinged to the support base and the hinge base.

4. The helicopter fire-fighting and water-discharging hatch according to claim 2, characterized in that, The adjusting rotating seat includes at least two connecting columns connected to the hatch body, at least two connecting plates fixedly sleeved on each of the connecting columns, and multiple connecting screws. Each connecting screw passes through and connects to each of the connecting plates via threads. The rotating connecting rod is hinged to one of the connecting plates via a pin.

5. The helicopter fire-fighting and water-discharging hatch according to claim 2, characterized in that, The rotating shaft connecting rod and the rotating shaft are connected by an interference fit through at least one fixing pin.

6. A firefighting helicopter, characterized in that, It includes a helicopter fire-fighting water tank with at least one drain outlet at the bottom and at least one helicopter fire-fighting water drain door as described in any one of claims 1 to 5.

7. The firefighting helicopter according to claim 6, characterized in that, The bottom of the helicopter fire water tank is provided with multiple horizontal partitions, and the pivot of the helicopter fire extinguishing water release door can rotatably pass through each of the horizontal partitions.

8. The firefighting helicopter according to claim 7, characterized in that, The bottom of the helicopter fire water tank is provided with multiple longitudinal partitions, and each longitudinal partition is connected to each of the transverse partitions.

9. The firefighting helicopter according to claim 7, characterized in that, The diaphragm is also provided with multiple through holes.

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