Lifting device for loading and unloading fire-fighting extension ladder

Abstract

The utility model discloses a fire-fighting extension ladder loading and unloading lifting device which comprises a frame, the inner side wall of the frame is fixedly connected with a supporting frame, the top of the supporting frame is fixedly provided with a hydraulic motor, one end of the hydraulic motor is provided with a hydraulic pump, one side of the surface of the hydraulic pump is provided with an oil tank, and the other side of the surface of the hydraulic pump is provided with an oil tank. The oil tank is fixedly installed on the surface of the supporting frame, and two connecting rods are fixedly connected to the inner side wall of the frame. Through the arrangement of the structure, the angle of the vertical plate can be adjusted under the action of the hydraulic motor, the hydraulic pump, the oil tank and the hydraulic cylinder, the fire-fighting extension ladder between the fixing assemblies is driven to move to the lowest position under the action of the first electric push rod and the second push rod, the fire-fighting extension ladder can be conveniently assembled and disassembled, time and labor are saved, and the working efficiency is improved. The combat intensity of firefighters is reduced, high-rise fire fighting or rapid response combat of rescuers is facilitated, meanwhile, the requirement for fire fighting emergency rescue can be met, and the practicability is higher.

Description

Technical Field

[0001] This utility model relates to the field of fire protection equipment technology, and in particular to a fire ladder loading and unloading lifting device. Background Technology

[0002] Multi-stage folding ladders equipped on fire trucks are essential tools for firefighting and rescue operations in high-rise buildings. They are crucial firefighting equipment used for rescuing and escaping people at heights. Therefore, providing firefighters with a quick and safe way to remove the ladders from the fire truck is indispensable. The multi-stage folding ladders on fire trucks are available in lengths of 6–10 meters and weigh between 60 and 100 kilograms, depending on the rescue height.

[0003] Currently, all fire trucks are equipped with extension ladders, which are manually unloaded from the fire trucks by multiple firefighters. After use, the ladders are also carried from the ground to the fire trucks by multiple firefighters. This process of loading and unloading extension ladders from fire trucks is laborious and time-consuming, increasing the workload of firefighters and hindering rapid response operations for high-rise fire fighting or rescue. It cannot meet the needs of emergency fire rescue. To solve this problem, a fire extension ladder loading and unloading lifting device is proposed. Utility Model Content

[0004] The technical problem this utility model aims to solve is that fire ladders are inconvenient, time-consuming, and labor-intensive to install and remove, which increases the combat intensity of firefighters, hinders rapid response operations for high-rise fire fighting or rescue, and fails to meet the needs of emergency fire rescue.

[0005] To solve the above technical problems, the present invention provides a technical solution as follows: a fire ladder loading and unloading lifting device, comprising a frame, a support frame fixedly connected to the inner side wall of the frame, a hydraulic motor fixedly installed on the top of the support frame, a hydraulic pump provided at one end of the hydraulic motor, an oil tank provided on one side of the surface of the hydraulic pump, the oil tank fixedly installed on the surface of the support frame, two connecting rods fixedly connected to the inner side wall of the frame, two connecting pieces rotatably connected to the outer surface of each of the two connecting rods, a vertical plate fixedly connected to one end of a plurality of connecting pieces, a through groove opened on the surface of the vertical plate, a first electric push rod fixedly connected to the top of the inner side of the through groove, two first lifting frames slidably connected to both sides of the outer surface of the vertical plate, and a first horizontal plate fixedly connected between the two first lifting frames;

[0006] The output end of the first electric push rod is fixedly connected to the top of the first horizontal plate, and the bottom of the first horizontal plate is fixedly connected to the second electric push rod. The two first lifting frames are slidably connected to each other. The two second lifting frames are fixedly connected to each other. The output end of the second electric push rod is fixedly connected to the top of the second horizontal plate. A fixing component is provided on one side of the surface of the two second lifting frames. Two hydraulic cylinders are provided between the frame and the two sets of connecting parts.

[0007] Preferably, the inner sidewall of the frame is fixedly connected to two connecting seats, the two connecting seats are fixedly connected to a first connecting shaft, one end of the two hydraulic cylinders is rotatably connected to the outside of the corresponding first connecting shaft, a second connecting shaft is fixedly connected between each set of connecting parts, and the output end of the two hydraulic cylinders is rotatably connected to the outside of the corresponding second connecting shaft, so that the hydraulic cylinders can rotate during the extension and retraction process.

[0008] Preferably, the hydraulic pump, oil tank, and hydraulic cylinder are all interconnected via oil pipes.

[0009] Preferably, the bottom of the frame is fixedly connected to multiple mounting bases, and each of the mounting bases has two mounting holes through it, which facilitates fixed installation.

[0010] Preferably, the fixing assembly includes two connecting frames, which are fixedly connected to the surfaces of two second lifting frames. A fixing plate is fixedly connected between the two connecting frames. Two sliding rods are slidably connected through the interior of the fixing plate. One end of each sliding rod is fixedly connected to a bracket for fixing the ladder. The ends of the two sliding rods away from the brackets are jointly fixedly connected to a drive plate. The movement of the sliding rods drives the brackets to move, which facilitates the clamping and fixing of the ladder.

[0011] Preferably, a screw is rotatably connected to the surface of the fixed plate, one end of the screw is threaded through and connected to the outside of the drive plate, and a drive handle is fixedly connected to one end of the screw. The screw can be driven to rotate by the drive handle, making the operation more convenient.

[0012] The beneficial effects of this utility model are as follows:

[0013] By setting the above-mentioned structure, this utility model can adjust the angle of the vertical plate under the action of hydraulic motor, hydraulic pump, oil tank and hydraulic cylinder, and drive the fire ladder between the fixed components to move to the bottom under the action of the first electric push rod and the second push rod, which facilitates the installation and removal of the fire ladder, saves time and effort, reduces the combat intensity of firefighters, is conducive to rapid response operations for high-rise fire fighting or rescue, and can meet the needs of emergency fire rescue, making it more practical. Attached Figure Description

[0014] Figure 1 This is a first-view perspective perspective view of a fire ladder loading and unloading lifting device according to the present invention.

[0015] Figure 2 This is a second-view perspective perspective view of a fire ladder loading and unloading lifting device according to the present invention.

[0016] Figure 3 This is a structural schematic diagram of the fixing component of a fire ladder loading and unloading lifting device according to this utility model.

[0017] In the diagram: 1. Second electric push rod; 2. First electric push rod; 3. Vertical plate; 4. Second coupling; 5. Connector; 6. Hydraulic motor; 7. Hydraulic cylinder; 8. First coupling; 9. Connecting seat; 10. Frame; 11. Oil tank; 12. Mounting seat; 13. Connecting rod; 14. Mounting hole; 15. First lifting frame; 16. Through slot; 17. First horizontal plate; 18. Second horizontal plate; 19. Second lifting frame; 20. Connecting frame; 21. Slide rod; 22. Drive handle; 23. Fixing plate; 24. Screw; 25. Card holder; 26. Drive plate. Detailed Implementation

[0018] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0019] Please see Figures 1 to 3 A fire ladder loading and unloading lifting device includes a frame 10. A support frame is fixedly connected to the inner side wall of the frame 10. A hydraulic motor 6 is fixedly installed on the top of the support frame. A hydraulic pump is provided at one end of the hydraulic motor 6. An oil tank 11 is provided on one side of the surface of the hydraulic pump. The oil tank 11 is fixedly installed on the surface of the support frame. Two connecting rods 13 are fixedly connected to the inner side wall of the frame 10. Two connecting pieces 5 are rotatably connected to the outer surface of the two connecting rods 13. One end of the multiple connecting pieces 5 is fixedly connected to a vertical plate 3. The vertical plate 3 can be driven to rotate by rotating the connecting pieces 5. A through groove 16 is opened on the surface of the vertical plate 3. A first electric push rod 2 is fixedly connected to the top of the through groove 16. Two first lifting frames 15 are slidably connected to both sides of the outer surface of the vertical plate 3. A first horizontal plate 17 is fixedly connected between the two first lifting frames 15.

[0020] The output end of the first electric push rod 2 is fixedly connected to the top of the first horizontal plate 17. The first electric push rod 2 drives the first horizontal plate 17 to move, which facilitates the movement of the first lifting frame 15. The bottom of the first horizontal plate 17 is fixedly connected to the second electric push rod 1. The two first lifting frames 15 are each slidably connected to the outside of the second lifting frame 19. The two second lifting frames 19 are fixedly connected to the second horizontal plate 18. The output end of the second electric push rod 1 is fixedly connected to the top of the second horizontal plate 18. The second electric push rod 1 drives the second horizontal plate 18 to move, which facilitates the movement of the second lifting frame 19. A fixing component is provided on one side of the surface of the two second lifting frames 19. Two hydraulic cylinders 7 are provided between the frame 10 and the two sets of connecting parts 5.

[0021] like Figure 3 As shown, the fixing assembly includes two connecting frames 20, which are fixedly connected to the surfaces of two second lifting frames 19. A fixing plate 23 is fixedly connected between the two connecting frames 20. Two sliding rods 21 are slidably connected through the interior of the fixing plate 23. One end of each sliding rod 21 is fixedly connected to a bracket 25 for fixing the ladder. The ends of the two sliding rods 21 away from the bracket 25 are jointly fixedly connected to a drive plate 26. The movement of the sliding rods 21 drives the bracket 25 to move, which facilitates the clamping and fixing of the ladder. A screw 24 is rotatably connected to the surface of the fixing plate 23. One end of the screw 24 is threaded through and connected to the outside of the drive plate 26. A drive handle 22 is fixedly connected to one end of the screw 24. The drive handle 22 facilitates the rotation of the screw 24, making the operation more convenient.

[0022] like Figure 1 and Figure 2 As shown, two connecting seats 9 are fixedly connected to the inner side wall of the frame 10. The first connecting shaft 8 is fixedly connected inside the two connecting seats 9. One end of the two hydraulic cylinders 7 is rotatably connected to the outside of the corresponding first connecting shaft 8. A second connecting shaft 4 is fixedly connected between each set of connecting parts 5. The output end of the two hydraulic cylinders 7 is rotatably connected to the outside of the corresponding second connecting shaft 4, so that the hydraulic cylinders 7 can rotate during the extension and retraction process. The hydraulic pump, oil tank 11 and hydraulic cylinders 7 are all interconnected through oil pipes. Multiple mounting seats 12 are fixedly connected to the bottom of the frame 10. Two mounting holes 14 are opened through the surface of each mounting seat 12, so that fixed installation can be easily achieved through the mounting holes 14 on the surface of the mounting seat 12.

[0023] In use, this utility model can be fixedly installed on the top of a fire truck using the mounting holes 14 on the surface of the mounting base 12. When unloading the fire ladder, the hydraulic cylinder 7 is driven by the hydraulic motor 6, hydraulic pump, and oil tank 11. The two ends of the hydraulic cylinder 7 rotate outside the first connecting shaft 8 and the second connecting shaft 4, thereby rotating the connecting piece 5. After the connecting piece 5 rotates, it drives the vertical plate 3 to rotate, so that the vertical plate 3 is in the vertical direction. The first electric push rod 2 is opened, and the first electric push rod 2 drives the first horizontal plate 17 to slide the first lifting frame 15 outside the vertical plate 3. The second electric push rod 1 drives... The second horizontal plate 18 drives the second lifting frame 19 to slide outside the first lifting frame 15, so that the fixed fire ladder is at the bottom. Rotating the drive handle 22 drives the screw 24 to rotate, which in turn drives the drive plate 26 to move. The movement of the drive plate 26 drives the slide rod 21 to move, and the movement of the slide rod 21 drives the bracket 25 to move and separate it from the fire ladder, which facilitates the loading and unloading of the fire ladder, saves time and effort, reduces the combat intensity of firefighters, is conducive to rapid response operations for high-rise fire fighting or rescue, and can meet the needs of emergency fire rescue, making it more practical.

[0024] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A fire ladder loading and unloading lifting device, comprising a frame (10), characterized in that: A support frame is fixedly connected to the inner side wall of the frame (10). A hydraulic motor (6) is fixedly installed on the top of the support frame. A hydraulic pump is provided at one end of the hydraulic motor (6). An oil tank (11) is provided on one side of the surface of the hydraulic pump. The oil tank (11) is fixedly installed on the surface of the support frame. Two connecting rods (13) are fixedly connected to the inner side wall of the frame (10). Two connecting pieces (5) are rotatably connected to the outer surface of the two connecting rods (13). A vertical plate (3) is fixedly connected to one end of the multiple connecting pieces (5). A through groove (16) is opened on the surface of the vertical plate (3). A first electric push rod (2) is fixedly connected to the top of the through groove (16). Two first lifting frames (15) are slidably connected to both sides of the outer surface of the vertical plate (3). A first horizontal plate (17) is fixedly connected between the two first lifting frames (15). The output end of the first electric push rod (2) is fixedly connected to the top of the first horizontal plate (17). The bottom of the first horizontal plate (17) is fixedly connected to the second electric push rod (1). The two first lifting frames (15) are each fitted with a second lifting frame (19) that is slidably connected. The two second lifting frames (19) are fixedly connected to the second horizontal plate (18). The output end of the second electric push rod (1) is fixedly connected to the top of the second horizontal plate (18). A fixing component is provided on one side of the surface of the two second lifting frames (19). Two hydraulic cylinders (7) are provided between the frame (10) and the two sets of connecting parts (5).

2. The fire ladder loading and unloading lifting device according to claim 1, characterized in that: The inner sidewall of the frame (10) is fixedly connected to two connecting seats (9), and the two connecting seats (9) are fixedly connected to a first connecting shaft (8). One end of the two hydraulic cylinders (7) is rotatably connected to the outside of the corresponding first connecting shaft (8). A second connecting shaft (4) is fixedly connected between each set of connecting parts (5), and the output end of the two hydraulic cylinders (7) is rotatably connected to the outside of the corresponding second connecting shaft (4).

3. The fire ladder loading and unloading lifting device according to claim 1, characterized in that: The hydraulic pump, oil tank (11) and hydraulic cylinder (7) are all interconnected by oil pipes.

4. The fire ladder loading and unloading lifting device according to claim 1, characterized in that: The bottom of the frame (10) is fixedly connected to a plurality of mounting bases (12), and two mounting holes (14) are opened through the surface of each of the plurality of mounting bases (12).

5. The fire ladder loading and unloading lifting device according to claim 1, characterized in that: The fixing assembly includes two connecting frames (20), which are fixedly connected to the surfaces of two second lifting frames (19). A fixing plate (23) is fixedly connected between the two connecting frames (20). Two sliding rods (21) are slidably connected through the interior of the fixing plate (23). One end of each sliding rod (21) is fixedly connected to a bracket (25) for fixing the ladder. The ends of the two sliding rods (21) away from the bracket (25) are jointly fixedly connected to a drive plate (26).

6. A fire ladder loading and unloading lifting device according to claim 5, characterized in that: A screw (24) is rotatably connected to the surface of the fixing plate (23). One end of the screw (24) is threaded through and connected to the outside of the drive plate (26), and a drive handle (22) is fixedly connected to one end of the screw (24).

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