Portable power-assisted boarding ladder for fire extinguishing of passenger cabin of aircraft

Abstract

The utility model discloses an aircraft passenger cabin fire extinguishing portable power-assisted boarding ladder, which relates to the technical field of emergency rescue, and comprises a lifting platform truck, a lifting frame and an operation workbench, the top of the lifting platform truck is provided with the lifting frame, and one end of the lifting frame is provided with the operation workbench through a bearing. A water hose fixing assembly is installed on the outer wall of the operation workbench. The rope body moves to drive the T-shaped pressing head to move through the support of the movable cylinder, the T-shaped pressing head moves to drive the reset spring to move, the reset spring moves to enable the T-shaped pressing head to move to one side of the bayonet, and at the moment, a connector of a water hose is placed on the inner wall of the bayonet so that the water hose can be supported and used conveniently. And at the moment, the servo machine turns over, the reset spring drives the T-shaped pressing head to stably fix the water hose, the water hose is stably fixed, use is convenient, the water hose is prevented from falling off, convenience is provided for a firefighter who extinguishes fire in the cabin to rapidly extend the water hose, and the physical ability of the firefighter is greatly saved.

Description

Technical Field

[0001] The utility model relates to the technical field of emergency rescue, in particular to a portable power-assisted boarding ladder for aircraft cabin fire extinguishing. Background Art

[0002] Aircraft fire accidents are characterized by strong sporadic occurrence, uncertain accident locations, easy explosions, fierce combustion, and high fire risk. In the event of a crash or other sudden aircraft accidents, the structure of the aircraft may be deformed, making it impossible to open the emergency exit of the cabin door normally. Fire rescue personnel should do everything possible to extinguish all fires in the cabin as quickly and effectively as possible and rescue all personnel in the fuselage. The height of common aircraft doors from the ground is between 1.5-8 meters, and the width of the doors is mostly between 0.65-2.65. The height from the ground is high and most aircraft doors are narrow. There are great challenges in the two processes of firefighters boarding and entering the cabin. The existing portable assisted boarding ladder water hose for aircraft cabin fire fighting is not stable and fixed, inconvenient to use and easy to fall. The firefighters' water hoses for fire fighting in the cabin cannot be extended quickly, which increases the physical strength of firefighters.

[0003] The defects of the existing portable powered boarding ladder for aircraft cabin fire fighting are:

[0004] Patent document CN216136619U discloses an installation device for a fire extinguisher bracket of a passenger boarding ladder, which discloses that "the installation device for the fire extinguisher bracket of the passenger boarding ladder includes: a bracket assembly, a cover opening mechanism, four clamping mechanisms and a warning mechanism; the bracket assembly includes a bracket base, two bracket ribs, a bracket plate and a fire extinguisher placement bucket, the two bracket ribs are fixedly mounted on one side outer wall of the bracket base, the bracket plate is fixedly mounted on the side outer wall of the two bracket ribs close to each other, one side outer wall of the bracket plate is fixedly connected to one side outer wall of the bracket base, and the fire extinguisher placement bucket is fixedly mounted on the two bracket ribs. The installation device for the fire extinguisher bracket of the passenger boarding ladder provided by the utility model can clamp and fix the fire extinguisher, and can protect the fire extinguisher installed on the outside of the vehicle from rain, and has the advantages of issuing a warning when the fire extinguisher in the fire extinguisher placement bucket disappears", but does not take into account the problem that the stable fixing of the water hose is inconvenient to use and easy to fall, and the fire hose of the firefighters extinguishing the fire in the cabin cannot be extended quickly, which increases the physical strength of the firefighters.

[0005] In view of this, it is necessary to develop a portable assisted boarding ladder for aircraft cabin fire fighting, so that the water hose can be stably fixed, easy to use and prevented from falling, providing convenience for firefighters fighting fire in the cabin to quickly extend the water hose, greatly saving the firefighters' physical energy. Utility Model Content

[0006] The purpose of the utility model is to provide a portable assisted boarding ladder for aircraft cabin fire fighting, so as to solve the technical problem proposed in the above-mentioned background technology that the water hose is stably fixed, easy to use and prevented from falling, so as to facilitate the firefighters who are fighting the fire in the cabin to quickly extend the water hose and greatly save the physical energy of the firefighters.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a portable power-assisted boarding ladder for aircraft cabin fire extinguishing, comprising a lifting platform vehicle, a lifting frame and an operating workbench, the lifting platform vehicle is equipped with a lifting frame on the top, one end of the lifting frame is equipped with an operating workbench through a bearing, the outer wall of the operating workbench is equipped with a water hose fixing assembly, and the water hose fixing assembly is used to support the fire extinguishing water hose;

[0008] The water hose fixing assembly includes an L-shaped support box, a bayonet, a servo, a collecting wheel, a support rod, and a T-shaped pressure head. The L-shaped support box is located on the outer wall of the operating workbench, the bayonet is opened at the top of the L-shaped support box, the servo is located on the inner wall of the L-shaped support box, the collecting wheel is located at the output end of the servo, the support rod is located on the inner wall of the L-shaped support box, a moving cylinder is installed at one end of the support rod, the T-shaped pressure head runs through both ends of the moving cylinder, a limiting head is installed on the outer wall of the T-shaped pressure head, a rope body is installed on the outer wall of the collecting wheel, and one end of the rope body is connected to one end of the T-shaped pressure head, a reset spring is installed on the outer wall of the T-shaped pressure head, and one end of the reset spring is connected to the outer wall of the support rod.

[0009] Preferably, the T-shaped pressing head can be moved by the support of the movable cylinder, and the T-shaped pressing head is located below the bayonet.

[0010] Preferably, retractable damping rods are installed on all four sides of the operating workbench, and a ground foot is rotatably installed on one end of the retractable damping rod. The ground foot is made of rubber and is fixed to the ground to support the power boarding ladder.

[0011] Preferably, the retractable damping rod can be an inner rod and an outer rod respectively, one end of the inner rod of the retractable damping rod is connected to the bottom of the operating workbench, a damping block is installed on the inner wall of the outer rod of the retractable damping rod, and one end of the inner rod of the retractable damping rod is connected to one end of the damping block, the inner rod of the retractable damping rod is installed with a support groove, an electromagnetic block is installed on the inner wall of the support groove, an elastic part is installed on the outer wall of the electromagnetic block, a bayonet is installed on one end of the elastic part, and a fixing opening is provided on the outer wall of the outer rod of the retractable damping rod.

[0012] Preferably, one end of the bayonet can be snapped into the inner wall of the fixing opening.

[0013] Preferably, the bottom of the lifting platform vehicle is equipped with fixable wheels, and the outer wall of the operating workbench is equipped with guardrails.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model prevents the T-shaped pressure head from moving out of the moving cylinder by installing a limited position head. The servo motor is a servo motor. The rotation of the servo motor drives the collection wheel to rotate. The rotation of the collection wheel drives the rope body to move. The movement of the rope body drives the T-shaped pressure head to move through the support of the moving cylinder. The movement of the T-shaped pressure head drives the reset spring to move. The movement of the reset spring causes the T-shaped pressure head to move to one side of the bayonet. At this time, the connector of the water hose is placed on the inner wall of the bayonet to support the water hose for easy use. At this time, the servo motor flips and the reset spring drives the T-shaped pressure head to stably fix the water hose, so that the water hose is stably fixed and convenient to use to prevent it from falling, which provides convenience for firefighters in the cabin to quickly extend the water hose, greatly saving the physical energy of firefighters;

[0016] 2. The utility model is started by installing an electromagnetic block to generate magnetic force to drive the bayonet to move. The bayonet is made of iron. The movement of the bayonet drives the elastic member to move. The movement of the elastic member causes the bayonet to move out of the fixed opening. At this time, the movement of the lifting frame drives the operation platform to move. The movement of the operation platform drives the inner rod of the retractable damping rod to move. The movement of the inner rod of the retractable damping rod drives the damping block to move. After the damping block moves to a suitable position, the electromagnetic block is closed, so that the elastic member drives the bayonet to snap into the fixed opening to limit it. The retractable damping rod can be extended but not retracted under a certain pulling force, and it will only retract when the bayonet is opened, thereby preventing the device from falling down due to tilting, greatly weakening the safety hazard of firefighters and reducing the uncertainty of rescue activities. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 For this utility model Figure 1 Schematic diagram of part A;

[0019] Figure 3 This is a schematic diagram of the structure of the T-shaped pressure head of the utility model;

[0020] Figure 4 It is a partial structural schematic diagram of the telescopic damping rod of the utility model;

[0021] Figure 5 For this utility model Figure 4 Schematic diagram of part of the structure.

[0022] In the figure: 1. Lifting platform vehicle; 2. Lifting frame; 3. Operating workbench; 4. Guardrail; 5. Ground foot; 6. Retractable damping rod; 7. L-shaped support box; 8. Bayonet; 9. Servo; 10. Collecting wheel; 11. Rope body; 12. Support rod; 13. Moving cylinder; 15. Limit head; 16. Reset spring; 17. T-shaped pressure head; 19. Fixing mouth; 20. Damping block; 21. Support groove; 22. Electromagnetic block; 23. Spring piece; 24. Bayonet pin. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] See also Figure 1 and Figure 2A portable power-assisted boarding ladder for aircraft cabin fire fighting comprises a lifting platform vehicle 1, a lifting frame 2 and an operating workbench 3. The lifting frame 2 is installed on the top of the lifting platform vehicle 1, and the operating workbench 3 is installed on one end of the lifting frame 2 through a bearing. A hose fixing assembly is installed on the outer wall of the operating workbench 3, and the hose fixing assembly is used to support the fire hose. Retractable damping rods 6 are installed around the operating workbench 3, and a ground foot 5 is rotatably installed at one end of the retractable damping rod 6. The ground foot 5 is made of rubber, and the ground foot 5 is fixed to the ground to support the power-assisted boarding ladder. Fixed wheels are installed at the bottom of the lifting platform vehicle 1, and a guardrail 4 is installed on the outer wall of the operating workbench 3. The function of the guardrail 4 is to protect fire rescue personnel from falling when working on the operating workbench. The function of the operating workbench 3 is to provide a support for fire rescue personnel when working at high altitudes. Provide support, the lifting frame 2 can control the lifting and lowering of the operating workbench, so that the fire rescue personnel can work at the target height. The function of the lifting platform vehicle 1 is to carry the lifting frame 2, and the fixed wheels allow the device to move forward. When the device is working, the wheels can be fixed so that the device no longer moves forward. The boarding ladder adopts a folding form and can be placed in the equipment compartment of the fire truck, the top of the fire truck, and the rear of the fire truck. It arrives at the fire scene together with the fire rescue force to meet the requirements of rapid response. The electric-assisted folding boarding ladder, when the rescue personnel and the required equipment stand on the ladder platform, the operation steps of the ladder are few and simple to use. The boarding ladder has a 2㎡ platform, which can meet the take-off and landing of 3-4 firefighters and a variety of demolition equipment and fire-fighting equipment at the same time. There is an electric power-assisted device with a water hose extended at the fence of the ladder platform, which can concentrate effective force on the fire-fighting operation in the cabin.

[0027] See also Figure 1 , Figure 2 and Figure 3The hose fixing assembly includes an L-shaped support box 7, a bayonet 8, a servo 9, a collecting wheel 10, a support rod 12, and a T-shaped pressure head 17. The L-shaped support box 7 is located on the outer wall of the operating workbench 3, the bayonet 8 is opened on the top of the L-shaped support box 7, the servo 9 is located on the inner wall of the L-shaped support box 7, the collecting wheel 10 is located at the output end of the servo 9, the support rod 12 is located on the inner wall of the L-shaped support box 7, a moving cylinder 13 is installed at one end of the support rod 12, the T-shaped pressure head 17 runs through both ends of the moving cylinder 13, a limiting head 15 is installed on the outer wall of the T-shaped pressure head 17, a rope body 11 is installed on the outer wall of the collecting wheel 10, and one end of the rope body 11 is connected to one end of the T-shaped pressure head 17, a reset spring 16 is installed on the outer wall of the T-shaped pressure head 17, and one end of the reset spring 16 is connected to the outer wall of the support rod 12, and the T-shaped pressure head 17 can pass through the moving cylinder 1 3 is supported to move, the T-shaped pressure head 17 is located below the bayonet 8, the function of the limit head 15 is to prevent the T-shaped pressure head 17 from moving out of the moving cylinder 13, the servo motor 9 is a servo motor, the rotation of the servo motor 9 drives the collection wheel 10 to rotate, the rotation of the collection wheel 10 drives the rope body 11 to move, the movement of the rope body 11 drives the T-shaped pressure head 17 to move through the support of the moving cylinder 13, the movement of the T-shaped pressure head 17 drives the reset spring 16 to move, the movement of the reset spring 16 causes the T-shaped pressure head 17 to move to one side of the bayonet 8, at this time, the connecting head of the water hose is placed on the inner wall of the bayonet 8 to make the water hose support convenient for use, at this time, the servo motor 9 is turned over and the reset spring 16 drives the T-shaped pressure head 17 to stably fix the water hose, so that the water hose is stably fixed and convenient to use to prevent it from falling, which provides convenience for the firefighters in the cabin to quickly extend the water hose, and greatly saves the physical energy of the firefighters.

[0028] See also Figure 1 , Figure 4 and Figure 5The telescopic damping rod 6 can be an inner rod and an outer rod respectively. One end of the inner rod of the telescopic damping rod 6 is connected to the bottom of the operating workbench 3. A damping block 20 is installed on the inner wall of the outer rod of the telescopic damping rod 6, and one end of the inner rod of the telescopic damping rod 6 is connected to one end of the damping block 20. The inner rod of the telescopic damping rod 6 is installed with a support groove 21, and an electromagnetic block 22 is installed on the inner wall of the support groove 21. An elastic member 23 is installed on the outer wall of the electromagnetic block 22, and a bayonet 24 is installed on one end of the elastic member 23. The outer wall of the outer rod of the telescopic damping rod 6 is provided with a fixing port 19, and one end of the bayonet 24 can be stuck into the inner wall of the fixing port 19. The electromagnetic block 22 is started to generate magnetic force to drive the bayonet 24 to move. The bayonet 24 is made of iron, and the bayonet 24 moves The movement of the elastic member 23 drives the elastic member 23 to move, and the movement of the elastic member 23 causes the bayonet 24 to move out of the fixing opening 19. At this time, the movement of the lifting frame 2 drives the operation platform 3 to move, and the movement of the operation platform 3 drives the inner rod of the telescopic damping rod 6 to move, and the movement of the inner rod of the telescopic damping rod 6 drives the damping block 20 to move. After the damping block 20 moves to a suitable position, the electromagnetic block 22 is closed, so that the elastic member 23 drives the bayonet 24 to be stuck in the fixing opening 19 to limit it. The telescopic damping rod 6 can be extended but not retracted under a certain pulling force, and will only retract when the bayonet 24 is opened, thereby realizing the function of preventing the device from falling down due to tilting, greatly weakening the safety hazard of firefighters, and reducing the uncertainty of rescue activities.

[0029] Working principle: the function of the guardrail 4 is to protect the fire rescue personnel from falling when they are working on the operating workbench; the function of the operating workbench 3 is to provide support for the fire rescue personnel when they are working at high altitude; the lifting frame 2 can control the lifting and lowering of the operating workbench so that the fire rescue personnel can work at the target height; the function of the lifting platform vehicle 1 is to carry the lifting frame 2; the fixed wheels allow the device to move forward; when the device is working, the wheels can be fixed so that the device no longer moves forward; the boarding ladder adopts a foldable form and can be placed in the equipment compartment of the fire truck, the top of the fire truck, or the rear of the fire truck, and arrives at the fire scene together with the fire rescue force to meet the rapid response requirements. In response to the requirements, an electric-assisted folding boarding ladder is used. When the rescue personnel and the required equipment stand on the ladder platform, the operation steps of the ladder are few and the use is simple. The boarding ladder has a 2㎡ platform, which can meet the needs of 3-4 firefighters and a variety of demolition equipment and fire-fighting equipment at the same time. There is an electric-assisted device with a hose extension at the fence of the ladder platform, which can concentrate effective force on the fire-fighting operation in the cabin. The function of the limit head 15 is to prevent the T-shaped pressure head 17 from moving out of the moving cylinder 13. The servo motor 9 is a servo motor. The rotation of the servo motor 9 drives the collection wheel 10 to rotate, and the rotation of the collection wheel 10 drives the rope body 11 to move. The movement of the rope body 11 drives the T-shaped pressure head 17 to pass The water hose is supported by the moving cylinder 13 to move, and the T-shaped pressure head 17 moves to drive the reset spring 16 to move. The reset spring 16 moves to move the T-shaped pressure head 17 to one side of the bayonet 8. At this time, the connecting head of the water hose is placed on the inner wall of the bayonet 8 to support the water hose for easy use. At this time, the servo 9 flips and the reset spring 16 drives the T-shaped pressure head 17 to stably fix the water hose, so that the water hose is stably fixed and convenient to use to prevent it from falling, which provides convenience for firefighters in the cabin to quickly extend the water hose, greatly saving the physical energy of the firefighters. The electromagnetic block 22 is started to generate magnetic force to drive the bayonet pin 24 to move. The bayonet pin 24 is made of iron. The movement of the bayonet pin 24 drives the elastic part 23 to move. The elastic part 23 The movement causes the bayonet 24 to move out of the fixing opening 19. At this time, the movement of the lifting frame 2 drives the operation platform 3 to move. The movement of the operation platform 3 drives the inner rod of the telescopic damping rod 6 to move. The movement of the inner rod of the telescopic damping rod 6 drives the damping block 20 to move. After the damping block 20 moves to a suitable position, the electromagnetic block 22 is closed, so that the elastic member 23 drives the bayonet 24 to be stuck in the fixing opening 19 to limit it. The telescopic damping rod 6 can be extended but not retracted under a certain pulling force. It will only retract when the bayonet 24 is opened, thereby preventing the device from falling down due to tilting, greatly weakening the safety hazard of firefighters and reducing the uncertainty of rescue activities.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A portable powered boarding ladder for aircraft cabin fire fighting, comprising a lifting platform vehicle (1), a lifting frame (2) and an operating workbench (3), characterized in that: A lifting frame (2) is installed on the top of the lifting platform vehicle (1); an operating workbench (3) is installed on one end of the lifting frame (2) via a bearing; a water hose fixing assembly is installed on the outer wall of the operating workbench (3); the water hose fixing assembly is used to support a fire extinguishing water hose; The hose fixing assembly comprises an L-shaped support box (7), a bayonet (8), a servo motor (9), a collecting wheel (10), a supporting rod (12), and a T-shaped pressure head (17). The L-shaped support box (7) is located on the outer wall of the operating workbench (3). The bayonet (8) is opened on the top of the L-shaped support box (7). The servo motor (9) is located on the inner wall of the L-shaped support box (7). The collecting wheel (10) is located at the output end of the servo motor (9). The supporting rod (12) is located on the inner wall of the L-shaped support box (7). A moving cylinder (13) is installed at one end of the support rod (12), a T-shaped pressure head (17) passes through both ends of the moving cylinder (13), a limiting head (15) is installed on the outer wall of the T-shaped pressure head (17), a rope body (11) is installed on the outer wall of the collecting wheel (10), and one end of the rope body (11) is connected to one end of the T-shaped pressure head (17), a return spring (16) is installed on the outer wall of the T-shaped pressure head (17), and one end of the return spring (16) is connected to the outer wall of the support rod (12).

2. A portable assisted boarding ladder for aircraft cabin fire extinguishing according to claim 1, characterized in that: The T-shaped pressing head (17) can be moved by being supported by the moving cylinder (13), and the T-shaped pressing head (17) is located below the bayonet (8).

3. The portable assisted boarding ladder for aircraft cabin fire extinguishing according to claim 1, characterized in that: The operating workbench (3) is equipped with retractable damping rods (6) on all four sides, and one end of the retractable damping rod (6) is rotatably equipped with a ground foot (5), the ground foot (5) is made of rubber material, and the ground foot (5) is fixed on the ground to support the power boarding ladder.

4. A portable assisted boarding ladder for aircraft cabin fire extinguishing according to claim 3, characterized in that: The telescopic damping rod (6) can be an inner rod and an outer rod respectively. One end of the inner rod of the telescopic damping rod (6) is connected to the bottom of the operating workbench (3). A damping block (20) is installed on the inner wall of the outer rod of the telescopic damping rod (6), and one end of the inner rod of the telescopic damping rod (6) is connected to one end of the damping block (20). The inner rod of the telescopic damping rod (6) is installed with a support groove (21), an electromagnetic block (22) is installed on the inner wall of the support groove (21), an elastic member (23) is installed on the outer wall of the electromagnetic block (22), and a bayonet (24) is installed on one end of the elastic member (23). The outer wall of the outer rod of the telescopic damping rod (6) is provided with a fixing opening (19).

5. A portable assisted boarding ladder for aircraft cabin fire extinguishing according to claim 4, characterized in that: One end of the bayonet (24) can be locked into the inner wall of the fixing opening (19).

6. The portable assisted boarding ladder for aircraft cabin fire extinguishing according to claim 1, characterized in that: The bottom of the lifting platform vehicle (1) is provided with fixed wheels, and the outer wall of the operating workbench (3) is provided with a guardrail (4).

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