Overload alarm detection device for lifting cab apron

Abstract

The overload alarm detection device comprises the cab apron, a detection mechanism is arranged above the cab apron, the detection mechanism comprises a lifting plate arranged above the cab apron, infrared sensor bodies are evenly and fixedly connected between the two sides of the lifting plate, a connecting column is fixedly connected to the top of the lifting plate, and the infrared sensor bodies are connected with the connecting column. The other end of the connecting column is fixedly connected with a millimeter wave radar body located over the cab apron. By means of the lifting plate, the opening and closing plate is opened, people are transferred to the cab apron, meanwhile, the infrared sensor body is kept started, the infrared sensor body controls the first motor to be started after receiving returned signals, the first motor drives the first lead screw to rotate, the first lead screw drives the lifting block to move, and the lifting block drives the lifting plate to move; the lifting plate drives the infrared sensor body to move until the infrared sensor body is higher than a person on a cab apron, the lifting plate moves to drive the connecting column to move, and the connecting column drives the millimeter wave radar body to move.

Description

Technical Field

[0001] The utility model relates to the technical field of overload detection devices for lifting ramps, in particular to an overload alarm detection device for lifting ramps. Background Art

[0002] The lifting platform is a device used to solve the height difference between points. The height of the platform is adjusted by electric, hydraulic or manual means to achieve a smooth transition of height, improve loading and unloading efficiency and ensure safety.

[0003] After searching, the utility model patent with application number 202122830701.6 is named as a new type of people counting millimeter wave radar. The patented device is equipped with a motor box, a forward and reverse motor, a connecting plate, a rotating shaft, a groove, and a circular groove. It is convenient for the staff to use the connecting rod fixed on one side of the device to connect with the corresponding circular groove, thereby tightly connecting one side of the device to the side of the corresponding connecting plate. At the same time, the power switch of the external control motor box and the forward and reverse motor is turned on, so that the motor box and the forward and reverse motor are driven by the power supply, which is convenient for the staff to adjust the device for horizontal rotation according to the motor box. The forward and reverse motor is controlled to drive the rotating shaft to rotate at the top of the fixed plate, causing the connecting plate to rotate at an angle and drive the device to rotate at the same time. The installation, slot, connecting column, and adhesive plate are conducive to better and more tightly connecting the device with the external connection device through the adhesive plate, and are convenient for changing the installation position, improving the environmental adaptability of the equipment, and being suitable for rooms with various lifting heights. The installation position is flexible, making it easy to find a more reasonable and convenient installation position and angle.

[0004] However, the patented device may have difficulty in accurately counting the number of people because the millimeter-wave radar of the device is too close or too far away from the crowd, resulting in the radar being blocked by people or the radar's distance resolution not being suitable, thus affecting the accuracy of the device's detection. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings in the prior art and to propose an overload alarm detection device for a lifting ramp.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] An overload alarm detection device for a lifting ferry comprises the ferry, with a detection mechanism arranged above the ferry, the detection mechanism comprising a lifting plate arranged above the ferry, an infrared sensor body evenly fixedly connected between both sides of the lifting plate, a connecting column fixedly connected to the top of the lifting plate, and a millimeter-wave radar body located directly above the ferry.

[0008] Preferably, the top of the ferry plate is fixedly connected to a baffle, the side of the baffle is fixedly connected to a side plate aligned with the lifting plate, a lifting slot is opened between the two sides of the side plate and located above the baffle, the bottom of the lifting slot is fixedly connected to motor 1, the output shaft of motor 1 is fixedly connected to screw rod 1, and the other end of screw rod 1 is rotatably connected to the top inside of the side plate.

[0009] Preferably, the circumferential side surface of the screw rod 1 is threadedly connected to a lifting block aligned with the lifting plate, one side of the lifting block is slidably connected to the lifting groove, and the side surface of the lifting groove is fixedly connected to the side surface of the lifting plate.

[0010] Preferably, a bottom plate is provided under the ferry plate, and movable plates are slidably connected to the top two sides of the bottom plate, and fixed plates are fixedly connected to the bottom two sides of the ferry plate, and at least two fixed frames are fixedly connected to the bottom two sides of the fixed plate and the top two sides of the movable plate, a fixed column is rotatably connected between one side of the two opposite fixed frames, and a connecting frame is rotatably connected between the circumferential side surfaces of the two staggered fixed columns.

[0011] Preferably, a connecting shaft is provided between the bottom of the ferry plate and the top of the base plate, the circumferential side of the connecting shaft is rotatably connected to the inside of the connecting frame, and the top of the base plate is evenly provided with sliding grooves aligned with the connecting frame.

[0012] Preferably, the outer side wall of the slide groove is fixedly connected to motor 2, the output shaft of motor 2 is fixedly connected to screw rod 2, the other end of screw rod 2 is rotatably connected to the inside of the side of the slide groove, the circumferential side of screw rod 2 is evenly threaded with a slider aligned with the movable plate, and the bottom of the slider is slidably connected to the bottom inner wall of the slide groove.

[0013] Preferably, the top of the slider is fixedly connected to the bottom of the movable plate, the top of the ferry plate is rotatably connected to at least two rotating shafts, the circumferential side surfaces of the rotating shafts are rotatably connected to the side surfaces of the baffle, the circumferential side surfaces of the rotating shafts are fixedly connected to the opening and closing plates, and the bottom of the opening and closing plates is rotatably connected to the top of the ferry plate.

[0014] Compared with the prior art, the present invention provides an overload alarm detection device for lifting ramps, which has the following beneficial effects:

[0015] By setting the lifting plate, the opening and closing plate is opened to transfer the personnel to the ferry board, and the infrared sensor body is kept started at the same time. After the infrared sensor body receives the returned signal, it controls the motor to start, and the motor drives the screw rod to rotate, and the screw rod drives the lifting block to move, and the lifting block drives the lifting plate to move, and the lifting plate drives the infrared sensor body to move until the infrared sensor body is higher than the personnel on the ferry board. When the lifting plate moves, it drives the connecting column to move, and the connecting column drives the millimeter-wave radar body to move, so that the millimeter-wave radar body and the personnel on the ferry board always maintain a certain distance and count the number of people. Whether to alarm overload is determined according to the number of people on the ferry board, which is conducive to preventing the device from being too close or too far from the crowd, resulting in the millimeter-wave radar being difficult to accurately count the number of people due to mutual obstruction by the people or the radar's distance resolution being not adapted, affecting the accuracy of the device detection, starting motor 2, motor 2 drives screw rod 2 to rotate, screw rod 2 drives the slider to move, the slider drives the moving plate to move, the moving plate drives the connecting frame to move, and the connecting frame props up the ferry board to carry the personnel up. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of an overload alarm detection device for lifting a ramp proposed by the present invention;

[0017] Figure 2 This is a schematic diagram of the internal structure of an overload alarm detection device for lifting a ramp proposed by the present invention;

[0018] Figure 3 The utility model is a partial structural diagram of an overload alarm detection device for lifting a ramp.

[0019] In the figure: 1- ferry plate, 2- opening and closing plate, 3- rotating shaft, 4- baffle, 5- motor 1, 6- lifting slot, 7- side plate, 8- lifting plate, 9- infrared sensor body, 10- connecting column, 11- millimeter wave radar body, 12- lifting block, 13- screw rod 1, 14- fixing plate, 15- fixing column, 16- connecting frame, 17- connecting shaft, 18- screw rod 2, 19- slider, 20- bottom plate, 21- slide slot, 22- motor 2, 23- fixing frame. DETAILED DESCRIPTION

[0020] Example, see Figure 1-3 An overload alarm detection device for lifting a ferry includes a ferry 1. A detection mechanism is provided above the ferry 1. The detection mechanism includes a lifting plate 8 provided above the ferry 1. An infrared sensor body 9 is evenly fixedly connected between the two sides of the lifting plate 8. A connecting column 10 is fixedly connected to the top of the lifting plate 8. The other end of the connecting column 10 is fixedly connected to a millimeter wave radar body 11 located directly above the ferry 1.

[0021] In the present utility model, the top of the ferry plate 1 is fixedly connected to the baffle 4, the side of the baffle 4 is fixedly connected to the side plate 7 aligned with the lifting plate 8, and a lifting groove 6 located above the baffle 4 is opened between the two sides of the side plate 7. The bottom of the lifting groove 6 is fixedly connected to the motor 5, and the output shaft of the motor 5 is fixedly connected to the screw rod 13, and the other end of the screw rod 13 is rotatably connected to the top inside of the side plate 7.

[0022] The circumferential side surface of the screw rod 13 is threadedly connected to the lifting block 12 aligned with the lifting plate 8, one side of the lifting block 12 is slidably connected to the lifting groove 6, and the side surface of the lifting groove 6 is fixedly connected to the side surface of the lifting plate 8.

[0023] A bottom plate 20 is provided under the ferry board 1, and a movable plate is slidably connected to the top sides of the bottom plate 20. Fixed plates 14 are fixedly connected to both sides of the bottom of the ferry board 1, and at least two fixing frames 23 are fixedly connected to both sides of the bottom of the fixed plate 14 and both sides of the top of the movable plate. A fixed column 15 is rotatably connected between one side of the two opposite fixing frames 23, and a connecting frame 16 is rotatably connected between the circumferential side surfaces of the two staggered fixed columns 15.

[0024] A connecting shaft 17 is provided between the bottom of the ferry 1 and the top of the base plate 20 . The circumferential side surface of the connecting shaft 17 is rotatably connected to the inside of the connecting frame 16 . The top of the base plate 20 is evenly provided with sliding grooves 21 aligned with the connecting frame 16 .

[0025] The outer side wall of the chute 21 is fixedly connected to a motor 22, the output shaft of the motor 22 is fixedly connected to a screw rod 218, the other end of the screw rod 21 is rotatably connected to the inner side of the chute 21, and the circumferential side of the screw rod 21 is evenly threaded with a slider 19 aligned with the movable plate, and the bottom of the slider 19 is slidably connected to the bottom inner wall of the chute 21.

[0026] The top of the slider 19 is fixedly connected to the bottom of the movable plate, the top of the ferry plate 1 is rotatably connected to at least two rotating shafts 3, the circumferential side surfaces of the rotating shafts 3 are rotatably connected to the side surfaces of the baffle 4, the circumferential side surfaces of the rotating shafts 3 are fixedly connected to the opening and closing plate 2, and the bottom of the opening and closing plate 2 is rotatably connected to the top of the ferry plate 1.

[0027] Working principle: open the opening and closing plate 2, transfer the personnel to the ferry board 1, and keep the infrared sensor body 9 started. After receiving the return signal, the infrared sensor body 9 controls the motor 15 to start, and the motor 15 drives the screw rod 13 to rotate, and the screw rod 13 drives the lifting block 12 to move, and the lifting block 12 drives the lifting plate 8 to move, and the lifting plate 8 drives the infrared sensor body 9 to move until the infrared sensor body 9 is higher than the personnel on the ferry board 1. When the lifting plate 8 moves, it drives the connecting column 10 to move, and the connecting column 10 drives the millimeter wave radar body 11 to move, so that the millimeter wave radar body 11 and the ferry board are aligned. 1. The personnel on the ferry 1 always keep a certain distance and count the number of people. The decision of whether to alarm for overload is made according to the number of people on the ferry 1. This is beneficial to prevent the device from being unable to accurately count the number of people because the millimeter-wave radar body 11 is too close or too far away from the crowd, resulting in the millimeter-wave radar being blocked by people or the radar's distance resolution not being adapted, thereby affecting the accuracy of the device's detection. Start motor 22, motor 22 drives screw rod 2 18 to rotate, screw rod 2 18 drives slider 19 to move, slider 19 drives the movable plate to move, the movable plate drives the connecting frame 16 to move, and the connecting frame 16 props up the ferry 1 to carry people up.

[0028] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An overload alarm detection device for lifting a ferry, comprising a ferry (1), characterized in that: A detection mechanism is provided above the ferry board (1), and the detection mechanism includes a lifting plate (8) provided above the ferry board (1), an infrared sensor body (9) is evenly fixedly connected between both sides of the lifting plate (8), a connecting column (10) is fixedly connected to the top of the lifting plate (8), and the other end of the connecting column (10) is fixedly connected to a millimeter wave radar body (11) located directly above the ferry board (1).

2. The overload alarm detection device for a lifting ramp according to claim 1, characterized in that: The top of the ferry plate (1) is fixedly connected to a baffle (4), the side of the baffle (4) is fixedly connected to a side plate (7) aligned with the lifting plate (8), a lifting groove (6) located above the baffle (4) is opened between the two sides of the side plate (7), the bottom of the lifting groove (6) is fixedly connected to a motor (5), the output shaft of the motor (5) is fixedly connected to a screw rod (13), and the other end of the screw rod (13) is rotatably connected to the top inside of the side plate (7).

3. The overload alarm detection device for a lifting ramp according to claim 2, characterized in that: The circumferential side surface of the screw rod (13) is threadedly connected to a lifting block (12) aligned with the lifting plate (8), one side of the lifting block (12) is slidably connected to the lifting groove (6), and the side surface of the lifting groove (6) is fixedly connected to the side surface of the lifting plate (8).

4. The overload alarm detection device for a lifting ramp according to claim 3, characterized in that: A bottom plate (20) is provided below the ferry plate (1), and movable plates are slidably connected to both sides of the top of the bottom plate (20), and fixed plates (14) are fixedly connected to both sides of the bottom of the ferry plate (1), and at least two fixed frames (23) are fixedly connected to both sides of the bottom of the fixed plate (14) and both sides of the top of the movable plate, and a fixed column (15) is rotatably connected between one side of two opposite fixed frames (23), and a connecting frame (16) is rotatably connected between the circumferential side surfaces of the two staggered fixed columns (15).

5. The overload alarm detection device for a lifting ramp according to claim 4, characterized in that: A connecting shaft (17) is provided between the bottom of the ferry (1) and the top of the bottom plate (20), and the circumferential side surface of the connecting shaft (17) is rotatably connected to the inside of the connecting frame (16). The top of the bottom plate (20) is evenly provided with sliding grooves (21) aligned with the connecting frame (16).

6. The overload alarm detection device for a lifting ramp according to claim 5, characterized in that: The outer side wall of the chute (21) is fixedly connected to the second motor (22), the output shaft of the second motor (22) is fixedly connected to the second screw rod (18), the other end of the second screw rod (18) is rotatably connected to the inner side of the chute (21), the circumferential side of the second screw rod (18) is evenly threadedly connected to a slider (19) aligned with the movable plate, and the bottom of the slider (19) is slidably connected to the bottom inner wall of the chute (21).

7. The overload alarm detection device for a lifting ramp according to claim 6, characterized in that: The top of the slider (19) is fixedly connected to the bottom of the movable plate, the top of the ferry plate (1) is rotatably connected to at least two rotating shafts (3), the circumferential side surfaces of the rotating shafts (3) are rotatably connected to the side surfaces of the baffle (4), the circumferential side surfaces of the rotating shafts (3) are fixedly connected to the opening and closing plate (2), and the bottom of the opening and closing plate (2) is rotatably connected to the top of the ferry plate (1).

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