Lifting platform structure of rescue vehicle

Abstract

The lifting platform structure of the rescue vehicle comprises a base, a fixing frame is installed at the top of the base, first connecting rods are rotationally connected to the two ends of the top of the fixing frame, an adjusting mechanism is installed at the tops of the first connecting rods, and second connecting rods are installed at the two ends of the top of the adjusting mechanism. Compared with the prior art, the adjusting mechanism is arranged to be matched with the first connecting rod and the second connecting rod, the distance between the workbench and the base is adjusted, then lifting operation of the workbench is achieved, the device is simple in structure, the workbench can be stably supported through the first connecting rod and the second connecting rod, use stability is very high, and practicability is high. And meanwhile, a lifting mechanism is arranged to adjust the height of the guardrail, the guardrail is stored to protect an adjusting mechanism, a first connecting rod and a second connecting rod when not in use, the guardrail protects workers during operation, and the device is simple in structure and very high in use flexibility.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting platforms, in particular to a lifting platform structure of a rescue vehicle. Background Art

[0002] A lifting platform is a lifting machinery used to transport people or objects vertically, making it convenient for rescue vehicles to carry out firefighting operations at a certain height. Rescue vehicles are often equipped with lifting platforms for use, generally using hydraulic drive in conjunction with a scissor-type support frame.

[0003] The existing Chinese patent "A Practical Lifting Operation Platform for Fire Truck Maintenance" with announcement number CN209778226U proposes to use an electric telescopic rod in conjunction with a first folding frame and a second folding frame to lift the hanging basket. However, in actual use, after the lifting is completed, the supporting positions of the first folding frame and the second folding frame are shifted sideways, which causes one side of the top hanging basket to be in an unsupported state. Therefore, the stability of the top hanging basket is poor and there are certain deficiencies in its use. For this reason, we propose a lifting platform structure for a rescue vehicle. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a lifting platform structure for a rescue vehicle.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A lifting platform structure of a rescue vehicle comprises a base, a fixing frame is installed on the top of the base, both ends of the top of the fixing frame are rotatably connected with a first connecting rod, an adjusting mechanism is installed on the top of the first connecting rod, both ends of the top of the adjusting mechanism are installed with a second connecting rod, the top of the second connecting rod is rotatably connected with a workbench, telescopic rods are installed between the fixing frame and the adjusting mechanism and between the workbench and the adjusting mechanism, a lifting mechanism is installed on the workbench, and a guardrail is installed on the lifting mechanism.

[0007] Preferably, the adjustment mechanism includes a movable frame, a first fixed plate is fixed at both ends of the movable frame, a second fixed plate is fixed inside the movable frame, a first motor is installed on the second fixed plate, the first motor is a dual-axis motor, screw rods are installed on the output shafts at both ends of the first motor, a first threaded sleeve is threadedly connected to the screw rod, a movable plate is fixed on the first threaded sleeve, and connecting blocks are installed on both ends of the top and both ends of the bottom of the movable plate.

[0008] Preferably, the threads of the two screw rods have opposite rotation directions, and the first connecting rod and the second connecting rod are both rotatably connected to the connecting block.

[0009] Preferably, the lifting mechanism includes a shell fixed on the workbench, both ends of the shell are rotatably connected to the second threaded sleeve, the second threaded sleeve is fixedly sleeved with a worm gear, the interior of the second threaded sleeve is threadedly connected to a threaded column, both ends of the threaded column are installed with mounting plates, a guide shaft is installed between the mounting plates on one side, the guide shaft passes through the shell, the guardrail is installed on the mounting plate, a second motor is installed on one side of the shell, and the output shaft of the second motor is inserted into the interior of the shell and connected to a worm.

[0010] Preferably, the two worm wheels are meshingly driven with the worm, and the workbench is located between the guardrails.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model adjusts the distance between the workbench and the base by setting an adjusting mechanism to cooperate with the first connecting rod and the second connecting rod, thereby realizing the lifting operation of the workbench. The device has a simple structure, and the workbench can be stably supported by the first connecting rod and the second connecting rod. The use stability is very high. At the same time, a lifting mechanism is set to adjust the height of the guardrail. When idle, the guardrail is stored to protect the adjusting mechanism, the first connecting rod and the second connecting rod. When working, the guardrail protects the staff. The device has a simple structure and is very flexible to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural schematic diagram of a lifting platform structure of a rescue vehicle proposed by the utility model;

[0014] Figure 2 for Figure 1 Axonometric view of the center adjustment mechanism;

[0015] Figure 3 for Figure 1 Installation diagram of the lifting mechanism.

[0016] In the figure: 1 base, 2 fixed frame, 3 first connecting rod, 4 adjusting mechanism, 41 movable frame, 42 first fixed plate, 43 second fixed plate, 44 first motor, 45 screw rod, 46 first threaded sleeve, 47 movable plate, 48 connecting block, 5 second connecting rod, 6 workbench, 7 lifting mechanism, 71 shell, 72 second threaded sleeve, 73 worm gear, 74 threaded column, 75 mounting plate, 76 guide shaft, 77 second motor, 78 worm, 8 guardrail, 9 telescopic rod. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0018] Reference Figure 1-3 A lifting platform structure of a rescue vehicle includes a base 1, a fixing frame 2 is installed on the top of the base 1, both ends of the top of the fixing frame 2 are rotatably connected with a first connecting rod 3, an adjusting mechanism 4 is installed on the top of the first connecting rod 3, and both ends of the top of the adjusting mechanism 4 are installed with a second connecting rod 5. The adjusting mechanism 4 includes a movable frame 41, both ends of the inside of the movable frame 41 are fixed with a first fixing plate 42, and the inside of the movable frame 41 is fixed with a second fixing plate 43, and a first motor 44 is installed on the second fixing plate 43. The first motor 44 is a double-axis motor, and both ends of the output shaft of the first motor 44 are installed A screw rod 45 is provided, and a first threaded sleeve 46 is connected to the screw rod 45 by a thread, and a movable plate 47 is fixed to the first threaded sleeve 46, and connecting blocks 48 are installed at both ends of the top and the bottom of the movable plate 47, and the threads of the two screw rods 45 have opposite rotation directions, and the first connecting rod 3 and the second connecting rod 5 are both rotatably connected to the connecting block 48, and the top of the second connecting rod 5 is rotatably connected to the workbench 6, and a telescopic rod 9 is installed between the fixed frame 2 and the adjustment mechanism 4, and between the workbench 6 and the adjustment mechanism 4. By setting the adjustment mechanism to cooperate with the first connecting rod and the second connecting rod, the distance between the workbench and the base can be adjusted. The device can be adjusted to achieve the lifting operation of the workbench. The device has a simple structure. The workbench can be stably supported by the first connecting rod and the second connecting rod. The stability in use is very high. A lifting mechanism 7 is installed on the workbench 6. A guardrail 8 is installed on the lifting mechanism 7. The lifting mechanism 7 includes a shell 71 fixed on the workbench 6. Both ends of the shell 71 are rotatably connected to the second threaded sleeve 72. A worm gear 73 is fixedly sleeved on the second threaded sleeve 72. The interior of the second threaded sleeve 72 is connected to a threaded column 74 through a thread. Both ends of the threaded column 74 are installed with mounting plates 75. The installation on one side A guide shaft 76 is installed between the plates 75, and the guide shaft 76 passes through the shell 71. The guardrail 8 is installed on the mounting plate 75. A second motor 77 is installed on one side of the shell 71. The output shaft of the second motor 77 is inserted into the interior of the shell 71 and is connected to a worm 78. Both worm wheels 73 are engaged with the worm 78. The workbench 6 is located between the guardrails 8, and a lifting mechanism is set to adjust the height of the guardrail. When idle, the guardrail is stored to protect the adjustment mechanism, the first connecting rod and the second connecting rod. When working, the guardrail protects the staff. The device has a simple structure and is very flexible to use.

[0019] When in use, the base 1 is fixed on the top of the rescue vehicle, and power is taken through the cab of the rescue vehicle. When idle, the threaded column 74 in the lifting mechanism drops to the bottom, and the guardrail 8 protects the adjustment mechanism 4, the first connecting rod 3 and the second connecting rod 5. When in operation, the first motor 44 is started, and the output shafts on both sides of the first motor 44 drive the screw rod 45 to rotate. The screw rod 45 drives the movable plate 47 to slide in the movable frame 41 through the thread transmission with the first threaded sleeve 46. Since the threads on both sides of the two screw rods 45 have opposite rotation directions, the two movable plates 47 move in opposite directions. The movable plates 47 on both sides drive the first connecting rod 3 through the connecting block 48 respectively. and the second connecting rod 5, so that the first connecting rod 3 and the second connecting rod 5 are unfolded, so that the workbench 6 is away from the base 1, and the lifting of the workbench 6 is completed. When the staff climbs onto the workbench 6, the second motor 77 is started, and the output shaft of the second motor 77 drives the worm 78 to rotate, and the worm 78 drives the second threaded sleeve 72 to rotate through the meshing transmission with the worm wheel 73, and the second threaded sleeve 72 drives the mounting plate 75 through the threaded transmission with the threaded column 74. The mounting plate 75 rises with the threaded column 74, and the mounting plate 75 drives the guardrail 8 upward. When the threaded column 74 rises to the top, the second motor 77 is stopped, and the guardrail 8 is used to protect the staff at this time.

[0020] To sum up, compared with the prior art, the utility model adjusts the distance between the workbench and the base by setting an adjustment mechanism in cooperation with the first connecting rod and the second connecting rod, thereby realizing the lifting operation of the workbench. The device has a simple structure, and the workbench can be stably supported by the first connecting rod and the second connecting rod, and the stability in use is very high. At the same time, a lifting mechanism is set to adjust the height of the guardrail. When idle, the guardrail is stored to protect the adjustment mechanism, the first connecting rod and the second connecting rod. When in operation, the guardrail protects the staff. The device has a simple structure and is very flexible in use.

[0021] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A lifting platform structure of a rescue vehicle, comprising a base (1), characterized in that: A fixing frame (2) is installed on the top of the base (1), and both ends of the top of the fixing frame (2) are rotatably connected to a first connecting rod (3), an adjusting mechanism (4) is installed on the top of the first connecting rod (3), and both ends of the top of the adjusting mechanism (4) are installed with a second connecting rod (5), and the top of the second connecting rod (5) is rotatably connected to a workbench (6), and telescopic rods (9) are installed between the fixing frame (2) and the adjusting mechanism (4) and between the workbench (6) and the adjusting mechanism (4), and a lifting mechanism (7) is installed on the workbench (6), and a guardrail (8) is installed on the lifting mechanism (7).

2. The lifting platform structure of a rescue vehicle according to claim 1, characterized in that: The adjustment mechanism (4) comprises a movable frame (41), a first fixed plate (42) is fixed at both ends of the movable frame (41), a second fixed plate (43) is fixed inside the movable frame (41), a first motor (44) is mounted on the second fixed plate (43), the first motor (44) is a double-shaft motor, screw rods (45) are mounted on both ends of the output shaft of the first motor (44), a first threaded sleeve (46) is threadedly connected to the screw rod (45), a movable plate (47) is fixed on the first threaded sleeve (46), and connecting blocks (48) are mounted on both ends of the top and bottom of the movable plate (47).

3. The lifting platform structure of a rescue vehicle according to claim 2, characterized in that: The threads of the two screw rods (45) have opposite rotation directions, and the first connecting rod (3) and the second connecting rod (5) are both rotatably connected to the connecting block (48).

4. The lifting platform structure of a rescue vehicle according to claim 1, characterized in that: The lifting mechanism (7) comprises a shell (71) fixed on the workbench (6), the two ends of the shell (71) are rotatably connected with a second threaded sleeve (72), the second threaded sleeve (72) is fixedly sleeved with a worm gear (73), the interior of the second threaded sleeve (72) is threadedly connected with a threaded column (74), both ends of the threaded column (74) are installed with mounting plates (75), a guide shaft (76) is installed between the mounting plates (75) on one side, the guide shaft (76) passes through the shell (71), the guardrail (8) is installed on the mounting plate (75), a second motor (77) is installed on one side of the shell (71), and the output shaft of the second motor (77) is inserted into the interior of the shell (71) and connected to a worm gear (78).

5. The lifting platform structure of a rescue vehicle according to claim 4, characterized in that: The two worm wheels (73) are meshed with the worm (78) for transmission, and the workbench (6) is located between the guardrails (8).

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