An automatic flip-up device for construction elevators

Abstract

This utility model discloses an automatic flip-up device for a construction elevator, including a double-door structure on one side of the elevator body, a flip-up structure on the inner side of the elevator body, and a detection structure installed on the elevator body. This utility model uses a linkage drive assembly driven by a first servo motor to open and close the double-door structure, thus opening and closing the elevator body. The transmission assembly, driven by a second servo motor, drives the flip-up structure to rotate, providing a passage for transporting materials. The combination of the elevator body and the flip-up structure replaces the protective frame, ensuring construction safety. The automatic flip-up mechanism, which automatically rotates the flip-up structure when the upper and lower doors open and close, saves costs and manpower and is convenient to use. Simultaneously, the detection structure monitors the operation of each component, providing real-time monitoring and early warning, preventing dangerous factors from occurring during elevator operation and improving the safety of elevator operation.

Description

Technical Field

[0001] This utility model belongs to the field of construction safety management technology, and in particular relates to an automatic flip-up device for construction elevators. Background Technology

[0002] In high-rise building construction, the importance of construction elevators in ensuring the safety of personnel entering and exiting construction floors is self-evident. Most existing construction elevators inevitably have a certain gap with the building structure, posing significant safety hazards. During operation, a construction hoist guard frame is typically used as the enclosure structure for the elevator's entry ramp, utilizing the elevator's own foundation ramp as the entry passage to ensure the safety of construction workers. However, traditional ramp devices lack intelligent sensing capabilities, posing a risk of people being trapped (according to statistics from the Ministry of Housing and Urban-Rural Development, this accounts for 23% of construction site accidents); manual operation results in an average of 1.5 hours of wasted work time per elevator per day; and there is no early warning mechanism for malfunctions such as broken steel cables. The need for manual pulling or manual turning makes them inconvenient to use. Utility Model Content

[0003] The technical problem this utility model aims to solve is to address the shortcomings of the prior art by providing an automatic tilting device for construction elevators. Driven by the first servo motor, the linkage drive assembly opens and closes the double-door structure, thus opening and closing the elevator body. Driven by the second servo motor, the transmission assembly rotates the tilting plate to provide a passage for transporting materials. The combination of the elevator body and the tilting plate replaces the protective frame, ensuring construction safety. The automatic tilting of the tilting plate during the opening and closing of the upper and lower doors saves costs and manpower and is convenient to use. Simultaneously, the detection structure monitors the operation of each component, providing real-time monitoring and early warning, preventing dangerous factors from occurring during elevator operation and improving the safety of elevator operation.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an automatic flip-up device for construction elevators, including a double-door structure disposed on one side of the elevator body, a flip-up structure disposed on the inner side of the elevator body, and a detection structure installed on the elevator body; The double-door structure includes a double-door assembly disposed on one side of the elevator body and a linkage drive assembly connected to the double-door assembly and used to drive the double-door assembly. The double-door assembly includes an upper door panel and a lower door panel disposed on one side of the elevator body; the linkage drive assembly includes an upper door panel rack disposed on one side of the upper door panel, a lower door panel rack disposed on one side of the lower door panel and arranged on the same side as the upper door panel rack, and a drive mechanism connected between the upper door panel rack and the lower door panel rack; the drive mechanism includes a first servo motor and a transmission gear mounted on the output shaft of the first servo motor and drively connected between the upper door panel rack and the lower door panel rack; The flap structure includes a flap disposed inside the elevator body and capable of being flipped to the outside of the elevator body, a transmission assembly connected to the flap and driving the flap to flip, and a second servo motor disposed in the electrical control box and used to drive the transmission assembly; one side of the flap is hinged to the edge of the elevator body. The transmission assembly includes a first transmission unit and a second transmission unit disposed within the elevator body and connected to the flap, both of which are driven by the second servo motor.

[0005] Furthermore, the upper door panel rack and the upper door panel are integrally formed, and the lower door panel rack and the lower door panel are integrally formed; the elevator body is provided with a slide rail that cooperates with the upper door panel and the lower door panel, and the slide rail and the linkage drive component are arranged on the same side; the upper door panel is provided with a slide groove that cooperates with the slide rail, and the lower door panel is provided with a slide groove that cooperates with the slide rail.

[0006] Furthermore, a fence is provided on the flip panel.

[0007] Furthermore, the first transmission unit includes a first transmission pulley assembly disposed on the top inner side of the elevator body and a steel wire rope disposed on the first transmission pulley assembly. The first transmission pulley assembly includes two first fixed pulleys disposed on the top inner side of the elevator body. The two first fixed pulleys are arranged on the same side of the elevator body and are arranged along the length direction of the elevator body. The centers of the two first fixed pulleys are located on the same horizontal line. The end of the steel wire rope passes through the two first fixed pulleys in sequence and is connected to one side of the flap.

[0008] Furthermore, the second transmission unit includes a second transmission pulley assembly disposed on the top inner side of the elevator body and a steel wire rope disposed on the second transmission pulley assembly. The second transmission pulley assembly includes multiple second fixed pulleys disposed on the top inner side of the elevator body. Among the multiple second fixed pulleys, one second fixed pulley is located on the same side of the elevator body as the first fixed pulley, and the remaining second fixed pulleys are located on the other side of the elevator body. The end of the steel wire rope first passes through the second fixed pulley located on the same side of the elevator body as the first fixed pulley, and then passes through the remaining second fixed pulleys in sequence before connecting to the other side of the flap.

[0009] Furthermore, the detection structure includes an electrical control box installed on the elevator body, limit switches installed on the upper and lower door panels, an angle encoder installed at the connection between the flap and the elevator body, through-beam photoelectric sensors installed on the elevator body and corresponding floors, a speed sensor installed on the output shaft of the first servo motor, an ultrasonic sensor installed on the outer surface of the flap, and a pressure sensor installed at the bottom of the elevator body.

[0010] Furthermore, the electrical control box is equipped with a circuit board, which integrates a controller and an alarm and a memory connected to the controller. The signal output terminals of the limit switch, the angle encoder, the through-beam photoelectric sensor, the speed sensor, the ultrasonic sensor, and the pressure sensor are all connected to the signal input terminal of the controller. The first servo motor and the second servo motor are both controlled by the controller.

[0011] The beneficial effects of this utility model are as follows: the linkage drive component, driven by the first servo motor, drives the double-door structure to open and close, thus opening and closing the elevator body; the transmission component, driven by the second servo motor, drives the flip plate to rotate, providing a channel for transporting materials; the combination of the elevator body and the flip plate can replace the protective frame, ensuring construction safety; the flip plate automatically rotates when the upper and lower door panels open and close, saving costs and manpower and being convenient to use; at the same time, the detection structure detects the operation of each component, playing a role in real-time monitoring and early warning, which can avoid dangerous factors in the operation of the elevator body and improve the safety of the elevator body operation.

[0012] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the double-door structure of this utility model when it is open.

[0015] Figure 3 This is a schematic diagram of the structure of the flap of this utility model when it is opened.

[0016] Figure 4 This is a schematic diagram showing the connection relationship between the second transmission unit and the elevator body of this utility model.

[0017] Figure 5 This is a circuit block diagram of the present invention.

[0018] Explanation of reference numerals in the attached figures: 1—Elevator body; 2—Upper door panel rack; 3—Upper door panel; 4—Lower door panel rack; 5—Lower door panel; 6—Transmission gear; 7—Flip-up plate; 8—Wire rope; 9—First fixed pulley; 10—Second fixed pulley; 11—Slide rail; 12—Electrical control box; 13—Fence; 14—Angle encoder; 15—Controller; 16—Alarm; 17—Through-beam photoelectric sensor; 18—Speed ​​sensor; 19—Ultrasonic sensor; 20—Limit switch; 21—Pressure sensor; 22—Memory. Detailed Implementation

[0019] like Figures 1 to 5 As shown, this utility model includes a double-door structure disposed on one side of the elevator body 1, a flip-plate structure disposed on the inner side of the elevator body 1, and a detection structure installed on the elevator body 1. The double-door structure includes a double-door assembly disposed on one side of the elevator body 1 and a linkage drive assembly connected to the double-door assembly and used to drive the double-door assembly; The double-door assembly includes an upper door panel 3 and a lower door panel 5 disposed on one side of the elevator body 1; the linkage drive assembly includes an upper door panel rack 2 disposed on one side of the upper door panel 3, a lower door panel rack 4 disposed on one side of the lower door panel 5 and arranged on the same side as the upper door panel rack 2, and a drive mechanism connected between the upper door panel rack 2 and the lower door panel rack 4; the drive mechanism includes a first servo motor and a transmission gear 6 mounted on the output shaft of the first servo motor and drivenly connected between the upper door panel rack 2 and the lower door panel rack 4; The flap structure includes a flap 7 disposed inside the elevator body 1 and capable of being flipped to the outside of the elevator body 1, a transmission assembly connected to the flap 7 and driving the flap 7 to flip, and a second servo motor disposed in the electrical control box 12 and used to drive the transmission assembly; one side of the flap 7 is hinged to the edge of the elevator body 1. The transmission assembly includes a first transmission unit and a second transmission unit disposed within the elevator body 1 and connected to the flip plate 7, both of which are driven by the second servo motor.

[0020] In actual use, the linkage drive component, driven by the first servo motor, drives the double-door structure to open and close, thus opening and closing the elevator body 1. The transmission component, driven by the second servo motor, drives the flip plate 7 to rotate, providing a channel for transporting materials. The combination of the elevator body 1 and the flip plate 7 can replace the protective frame, ensuring construction safety. When the upper door panel 3 and the lower door panel 5 open and close, the flip plate 7 automatically rotates, saving costs and manpower and being convenient to use. At the same time, the detection structure detects the operation of each component, playing a role in real-time monitoring and early warning, which can avoid dangerous factors in the operation of the elevator body 1 and improve the safety of the elevator body 1.

[0021] When this utility model is in use, the flap 7 has an automatic unfolding and automatic retraction process. When the flap 7 unfolds automatically, the speed sensor 18 needs to first determine that the elevator body 1 has stopped running, the through-beam photoelectric sensor 17 detects that the elevator body 1 has run to the target floor, the ultrasonic sensor 19 determines that there are no obstacles on the unfolding path of the flap 7, and the pressure sensor 21 determines that the load inside the elevator body 1 is within the safe range. Then, the first servo motor drives the linkage drive assembly to open the upper door panel 3 and the lower door panel 5 until the limit switch 20 confirms that the door panel is fully opened. Then, the second servo motor drives the transmission assembly to flip the flap 7 until the angle encoder 14 confirms that the flap 7 has flipped into place.

[0022] When the flap 7 is automatically retracted, the ultrasonic sensor 19 needs to determine that there are no obstacles on the unfolding path of the flap 7. The second servo motor drives the transmission component to rotate the flap 7 until the angle encoder 14 confirms that the flap 7 has rotated to the vertical position to be fully retracted. The first servo motor drives the linkage drive component to close the upper door panel 3 and the lower door panel 5 until the limit switch 20 confirms that the door panel is fully closed.

[0023] In this embodiment, the upper door panel rack 2 and the upper door panel 3 are integrally formed, and the lower door panel rack 4 and the lower door panel 5 are integrally formed; the elevator body 1 is provided with a slide rail 11 that cooperates with the upper door panel 3 and the lower door panel 5, and the slide rail 11 and the linkage drive component are arranged on the same side; the upper door panel 3 is provided with a slide groove that cooperates with the slide rail 11, and the lower door panel 5 is provided with a slide groove that cooperates with the slide rail 11.

[0024] like Figure 3 As shown in this embodiment, the flap 7 is provided with a fence 13.

[0025] In this embodiment, the first transmission unit includes a first transmission pulley assembly disposed on the top inner side of the elevator body 1 and a steel wire rope 8 disposed on the first transmission pulley assembly. The first transmission pulley assembly includes two first fixed pulleys 9 disposed on the top inner side of the elevator body 1. The two first fixed pulleys 9 are disposed on the same side of the elevator body 1 and are arranged along the length direction of the elevator body 1. The centers of the two first fixed pulleys 9 are located on the same horizontal line. The end of the steel wire rope 8 passes through the two first fixed pulleys 9 in sequence and is connected to one side of the flap 7.

[0026] like Figure 4 As shown, in this embodiment, the second transmission unit includes a second transmission pulley group disposed on the top inner side of the elevator body 1 and a steel wire rope 8 disposed on the second transmission pulley group. The second transmission pulley group includes a plurality of second fixed pulleys 10 disposed on the top inner side of the elevator body 1. Among the plurality of second fixed pulleys 10, one second fixed pulley 10 is located on the same side of the elevator body 1 as the first fixed pulley 9, and the remaining second fixed pulleys 10 are all located on the other side of the elevator body 1. The end of the steel wire rope 8 first passes through the second fixed pulley 10 located on the same side of the elevator body 1 as the first fixed pulley 9, and then passes through the remaining second fixed pulleys 10 in sequence before connecting to the other side of the flip plate 7.

[0027] In this embodiment, the detection structure includes an electrical control box 12 installed on the elevator body 1, limit switches 20 installed on the upper door panel 3 and the lower door panel 5, an angle encoder 14 installed at the connection between the flip plate 7 and the elevator body 1, a through-beam photoelectric sensor 17 installed on the elevator body 1 and the corresponding floor, a speed sensor 18 installed on the output shaft of the first servo motor, an ultrasonic sensor 19 installed on the outer side of the flip plate 7, and a pressure sensor 21 installed at the bottom of the elevator body 1.

[0028] In this embodiment, the electrical control box 12 is equipped with a circuit board, on which a controller 15, an alarm 16, and a memory 22 are integrated. The signal output terminals of the limit switch 20, the angle encoder 14, the through-beam photoelectric sensor 17, the speed sensor 18, the ultrasonic sensor 19, and the pressure sensor 21 are all connected to the signal input terminal of the controller 15. The first servo motor and the second servo motor are both controlled by the controller 15.

[0029] In actual use, limit switch 20 is used to detect the opening and closing status of upper door panel 3 and lower door panel 5; angle encoder 14 is used to detect the unfolding angle or retracted state of flip panel 7; through-beam photoelectric sensor 17 is used to detect whether elevator body 1 is stopped at the target floor and in a level state; speed sensor 18 is used to detect whether elevator body 1 is in operation; ultrasonic sensor 19 is set on the outer surface of flip panel 7, or can be set below the opening of elevator body according to actual conditions, to detect obstacles on the unfolding path of flip panel 7, or can be replaced by lidar, infrared or pressure sensing edge according to actual conditions; pressure sensor 21 is set at the bottom of elevator body 1 to detect the load condition inside the elevator car. The wire rope 8 has a built-in fiber optic strain sensor to monitor the risk of tension exceeding the limit in real time. The first servo motor is a servo motor or a stepper motor with encoder, connected to the controller 15 to achieve precise position and speed control. The second servo motor is a servo motor or a stepper motor / DC motor with encoder, connected to the controller 15.

[0030] It should be noted that when the speed sensor 18 detects that the elevator body 1 is in operation, the unfolding or retracting operation of the flap 7 is prohibited. The unfolding operation of the flap 7 is prohibited when the upper door panel 3 and lower door panel 5 are not fully open. The closing operation of the upper door panel 3 and lower door panel 5 is prohibited when the flap 7 is not fully retracted. When the ultrasonic sensor 19 detects an obstacle in the unfolding path of the flap 7, it immediately pauses or terminates the unfolding or retracting action of the flap 7 and activates the alarm 16. When the pressure sensor 21 detects an overload within the elevator body 1, the unfolding operation of the flap 7 is prohibited, and the alarm 16 is activated. The memory 22 stores the time, status, sensor data, and alarm status of each unfolding or retracting operation of the flap 7. A display screen is provided on the electrical control box 12 for easy operation by workers.

[0031] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the present utility model. Any simple modifications, alterations, or equivalent structural changes made to the above embodiments based on the technical essence of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. An automatic tilting device for a construction elevator, characterized in that: It includes a double-door structure set on one side of the elevator body (1), a flap structure set on the inside of the elevator body (1), and a detection structure installed on the elevator body (1); The double-door structure includes a double-door assembly disposed on one side of the elevator body (1) and a linkage drive assembly connected to the double-door assembly and used to drive the double-door assembly; The double-door assembly includes an upper door panel (3) and a lower door panel (5) disposed on one side of the elevator body (1); the linkage drive assembly includes an upper door panel rack (2) disposed on one side of the upper door panel (3), a lower door panel rack (4) disposed on one side of the lower door panel (5) and arranged on the same side as the upper door panel rack (2), and a drive mechanism connected between the upper door panel rack (2) and the lower door panel rack (4); the drive mechanism includes a first servo motor and a transmission gear (6) mounted on the output shaft of the first servo motor and driven between the upper door panel rack (2) and the lower door panel rack (4). The flap structure includes a flap (7) disposed inside the elevator body (1) and capable of being flipped to the outside of the elevator body (1), a transmission assembly connected to the flap (7) and driving the flap (7) to flip, and a second servo motor disposed in the electrical control box (12) and used to drive the transmission assembly; one side of the flap (7) is hinged to the edge of the elevator body (1); The transmission assembly includes a first transmission unit and a second transmission unit disposed within the elevator body (1) and connected to the flap (7), both of which are driven by the second servo motor.

2. The automatic tilting device for a construction elevator according to claim 1, characterized in that: The upper door panel rack (2) and the upper door panel (3) are integrally formed, and the lower door panel rack (4) and the lower door panel (5) are integrally formed; the elevator body (1) is provided with a slide rail (11) that cooperates with the upper door panel (3) and the lower door panel (5), and the slide rail (11) and the linkage drive component are arranged on the same side; the upper door panel (3) is provided with a slide groove that cooperates with the slide rail (11), and the lower door panel (5) is provided with a slide groove that cooperates with the slide rail (11).

3. The automatic tilting device for a construction elevator according to claim 1, characterized in that: The flap (7) is equipped with a fence (13).

4. The automatic tilting device for a construction elevator according to claim 1, characterized in that: The first transmission unit includes a first transmission fixed pulley group set on the top inner side of the elevator body (1) and a steel wire rope (8) set on the first transmission fixed pulley group. The first transmission fixed pulley group includes two first fixed pulleys (9) set on the top inner side of the elevator body (1). The two first fixed pulleys (9) are arranged on the same side of the elevator body (1) and are arranged along the length direction of the elevator body (1). The centers of the two first fixed pulleys (9) are located on the same horizontal line. The end of the steel wire rope (8) passes through the two first fixed pulleys (9) in sequence and is connected to one side of the flip plate (7).

5. The automatic tilting device for a construction elevator according to claim 4, characterized in that: The second transmission unit includes a second transmission fixed pulley group disposed on the top inner side of the elevator body (1) and a steel wire rope (8) disposed on the second transmission fixed pulley group. The second transmission fixed pulley group includes a plurality of second fixed pulleys (10) disposed on the top inner side of the elevator body (1). Among the plurality of second fixed pulleys (10), one second fixed pulley (10) is located on the same side of the elevator body (1) as the first fixed pulley (9), and the remaining second fixed pulleys (10) are all located on the other side of the elevator body (1). The end of the steel wire rope (8) first passes through the second fixed pulley (10) located on the same side of the elevator body (1) as the first fixed pulley (9), and then passes through the remaining second fixed pulleys (10) in sequence before connecting to the other side of the flip plate (7).

6. The automatic tilting device for a construction elevator according to claim 1, characterized in that: The detection structure includes an electrical control box (12) installed on the elevator body (1), limit switches (20) installed on the upper door panel (3) and the lower door panel (5), an angle encoder (14) installed at the connection between the flip plate (7) and the elevator body (1), a through-beam photoelectric sensor (17) installed on the elevator body (1) and the corresponding floor, a speed sensor (18) installed on the output shaft of the first servo motor, an ultrasonic sensor (19) installed on the outer side of the flip plate (7), and a pressure sensor (21) installed at the bottom of the elevator body (1).

7. The automatic tilting device for a construction elevator according to claim 6, characterized in that: The electrical control box (12) is equipped with a circuit board, on which a controller (15) and an alarm (16) and a memory (22) are integrated. The signal output terminals of the limit switch (20), the angle encoder (14), the through-beam photoelectric sensor (17), the speed sensor (18), the ultrasonic sensor (19), and the pressure sensor (21) are all connected to the signal input terminal of the controller (15). The first servo motor and the second servo motor are both controlled by the controller (15).

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