Safety suspension device homing system for aloft work anti-falling lifeline

Abstract

A safety suspension device homing system for an aerial work anti-falling lifeline relates to the technical field of aerial work and comprises a homing trolley, a first limiting baffle, a second limiting baffle and a remote controller. The top of the homing trolley is in sliding connection with the track lifeline, and the tail end face of the homing trolley is used for pushing the multiple suspension devices. A driving unit, a detection unit and a control unit are arranged in the homing trolley, the driving unit is used for driving the homing trolley to linearly move along the lifeline of the track, the detection unit is used for judging whether the homing trolley abuts against the first limiting baffle or the second limiting baffle, and the control unit is used for receiving an instruction of a remote controller. Detecting an in-place instruction of the unit and controlling the driving unit to start or stop; the first limiting baffle and the second limiting baffle are fixedly installed at the two ends of a track lifeline respectively, and all the suspension devices are placed between the second limiting baffle and one end of the track lifeline. The problem that a traditional suspension device is placed disorderly is solved.

Description

A safety suspension device repositioning system for high-altitude work safety lifeline Technical Field

[0001] The utility model relates to the field of high-altitude operation technology, specifically to a safety suspension device return system for high-altitude operation fall prevention lifeline. Background Technology

[0002] A fall protection lifeline for working at heights is an important safety device used to protect personnel working at heights from fall injuries. It typically includes a series of components such as steel cables, ropes, track systems, and suspension devices that connect to the worker's safety belt; and lifelines generally include steel cable lifelines, track-type lifelines, and flexible lifelines.

[0003] For track-type lifelines, users can move freely on the track, and multiple suspension devices are installed to allow workers to move over a wide area without losing their protective gear, such as in the working environment of railway locomotive and rolling stock maintenance lines. However, after each operation, because track lifelines are generally long and workers move over a large area, the multiple suspension devices are distributed relatively far apart, making it inconvenient for workers to access them for the next operation. Furthermore, when workers conduct safety inspections of the suspension devices, they need to walk all over the track, resulting in low inspection efficiency and a heavy workload for the workers.

[0004] Therefore, we propose a suspension device repositioning system that facilitates worker access to the suspension device and improves inspection efficiency. Summary of the Invention

[0005] The purpose of this utility model is to provide a safety suspension device positioning system for high-altitude operation fall prevention lifeline, which solves the problem of scattered placement of traditional suspension devices.

[0006] This utility model is achieved through the following technical solution:

[0007] A safety suspension device repositioning system for high-altitude operation fall prevention lifeline includes a repositioning trolley, a first limiting baffle, and a second limiting baffle; the top of the repositioning trolley is slidably connected to the track lifeline, and the tail end face of the repositioning trolley is used to push multiple suspension devices.

[0008] The retrieval trolley is equipped with a drive unit, a detection unit, and a control unit. The drive unit is used to drive the retrieval trolley to move linearly along the track lifeline. The detection unit is used to determine whether the retrieval trolley is in contact with the first limit baffle or the second limit baffle. The control unit is used to receive user control commands and the positioning commands from the detection unit, and to control the drive unit to start or stop.

[0009] The first limiting baffle is fixedly installed at the head end of the track lifeline, and the second limiting baffle is fixedly installed at the tail end of the track lifeline. The returning trolley is located between the two limiting baffles, and the head end face of the returning trolley is in contact with the first limiting baffle. The space between the second limiting baffle and the tail end of the track lifeline is used to place all suspension devices.

[0010] Furthermore, the drive unit includes a drive wheel, a driven wheel, and a motor, wherein the outer edge of the drive wheel abuts against the track section of the track lifeline, the driven wheel is fixedly mounted on the top of the positioning trolley and is slidably connected to the lifeline section of the track lifeline, and the motor is correspondingly driven to the drive wheel.

[0011] Furthermore, the track section of the track lifeline includes a track body and two C-shaped steels, wherein the bottom of the track body is fixedly connected to the two C-shaped steels, and the openings of the two C-shaped steels correspond to each other and are spaced apart; the lifeline section of the track lifeline passes through the opening space of the two C-shaped steels.

[0012] Furthermore, the driven wheel includes a mounting plate, a rotating shaft, and a wheel assembly. The bottom of the mounting plate is fixedly connected to the top of the positioning trolley. Multiple rotating shafts are provided on the top of the mounting plate perpendicular to the plate surface. The mounting plate has through holes for the lifeline section to pass through. A wheel assembly is rotatably mounted on each rotating shaft, and the two wheels of the wheel assembly are respectively located in two C-shaped steels.

[0013] Furthermore, the control unit includes a built-in power supply, a microcontroller, and an infrared receiver. The built-in power supply powers the motor and the microcontroller, respectively. The signal input pins of the microcontroller are electrically connected to the detection unit and the infrared receiver, respectively. The control output pins of the microcontroller are electrically connected to the motor, and the infrared receiver is connected to the remote control signal.

[0014] Furthermore, the rear end face of the homing trolley is provided with multiple push contacts.

[0015] Furthermore, the microcontroller is an STM32F103C8T6.

[0016] Furthermore, the detection unit includes a first detection switch installed on the front end face of the retrieval trolley and a second detection switch installed on the rear end face of the retrieval trolley, and both the first detection switch and the second detection switch are electrically connected to the signal input pin of the microcontroller.

[0017] Furthermore, the user control commands are issued by the user operating the remote control.

[0018] The technical solution of this utility model has at least the following advantages and beneficial effects:

[0019] This utility model discloses a safety suspension device repositioning system for high-altitude operation fall prevention lifelines. By moving a repositioning trolley along the lifeline track, all suspension devices can be gradually pushed back to the positions of the second limit baffle and the end of the track, ultimately repositioning all suspension devices. This effectively solves the problem of scattered placement of traditional suspension devices. Furthermore, the centralized placement of suspension devices facilitates the retrieval of the devices by workers during subsequent construction and improves the efficiency of worker inspection. In addition, the repositioning trolley is remotely controlled, which can improve the repositioning efficiency of the suspension devices.

[0020] In addition, the drive unit uses a combination of driving wheels and driven wheels, which can effectively improve the stability of the homing trolley moving on the track lifeline. Attached Figure Description

[0021] Figure 1 is a structural schematic diagram of this utility model;

[0022] Figure 2 is a schematic diagram of the drive unit structure of this utility model;

[0023] Figure 3 is a schematic diagram of the control unit structure of this utility model.

[0024] Reference numerals: 1. Returning trolley; 11. Drive unit; 111. Driving wheel; 112. Driven wheel; 1121. Mounting plate; 1122. Shaft; 1123. Wheel set; 113. Motor; 12. Detection unit; 121. First detection switch; 122. Second detection switch; 13. Control unit; 131. Built-in power supply; 132. Microcontroller; 133. Infrared receiver; 2. First limit baffle; 3. Second limit baffle; 4. Remote control; 5. Track lifeline; 51. Track section; 511. Track body; 512. C-shaped steel; 52. Lifeline section; 6. Suspension device. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Example 1

[0027] As shown in Figures 1-3, a safety suspension device repositioning system for a lifeline in high-altitude operations includes a repositioning trolley 1, a first limiting stop 2, and a second limiting stop 3. The top of the repositioning trolley 1 is slidably connected to the lifeline 5, and the tail end of the repositioning trolley 1 is used to push multiple suspension devices 6. That is, when the repositioning trolley 1 moves from the head end to the tail end of the lifeline 5, the tail end of the repositioning trolley 1 can sequentially push the suspension devices 6 towards the tail end of the lifeline 5 until the tail end of the repositioning trolley 1 is aligned with the second limiting stop 3. When the limiting stop 3 comes into contact, multiple suspension devices 6 are also pushed to the end between the second limiting stop 3 and the end of the track lifeline 5, realizing the centralized placement of the suspension devices 6. At this time, it is more convenient for the staff to inspect all the suspension devices 6 or to retrieve the suspension devices 6 during the next construction. In particular, the end face of the returning trolley 1 is provided with multiple push contacts, which can avoid hard friction between the returning trolley and the suspension devices 6, thereby protecting the suspension devices 6. The push contacts are made of silicone.

[0028] Specifically, the user control command is issued by the user operating the remote control. In addition, the user control command can also be issued by remote control devices such as mobile terminals and central control rooms. Specifically, when operating the remote control, there are multiple buttons on the remote control, and the remote control can emit infrared signals. After the user presses different buttons, the infrared signals emitted by the remote control contain the corresponding control information. Thus, after the control unit receives the infrared signals, it can perform subsequent control operations.

[0029] The homing trolley 1 is equipped with a drive unit 11, a detection unit 12, and a control unit 13. The drive unit 11 drives the homing trolley 1 to move linearly along the track lifeline 5. The detection unit 12 determines whether the homing trolley 1 is in contact with the first limit stop 2 or the second limit stop 3. The control unit 13 receives user control commands and the positioning commands from the detection unit 12, and controls the drive unit 11 to start or stop. The remote controller 4 sends forward or backward commands to the control unit 13, thereby controlling the drive unit 11 to drive the homing trolley 1 to move towards the beginning or end of the track lifeline 5. When the homing trolley 1 reaches the first limit stop 2 or the second limit stop 3, i.e., the homing trolley 1 has reached its forward or backward positioning position, the control unit 13 stops the drive unit 11, and the homing trolley 1 returns to a stationary state.

[0030] The first limiting baffle 2 is fixedly installed at the head end of the track lifeline 5, and the second limiting baffle 3 is fixedly installed at the tail end of the track lifeline 5. The returning trolley 1 is located between the two limiting baffles, and the head end face of the returning trolley 1 is in contact with the first limiting baffle 2. The second limiting baffle 3 is used to place all the suspension devices 6 between it and the tail end of the track lifeline 5.

[0031] The initial position of the return trolley 1 is at the first limiting stop 2, and the initial position of all suspension devices 6 is between the second limiting stop 3 and the end of the track lifeline 5. When the staff needs to perform related work along the track lifeline 5, they will connect the safety buckle to the suspension device 6. After the work is completed, the suspension device 6 may disperse between the return trolley 1 and the second limiting stop 3. At this time, the staff on the ground presses the forward button on the remote control 4. When the control unit 13 receives the forward signal from the remote control 4, it controls the drive unit 11 to drive the return trolley 1 to move towards the end of the track lifeline 5. During the movement of the return trolley 1, the suspension device 6 is also moved towards the end of the track lifeline 5, thus realizing the return of the suspension device 6. When the return trolley 1 moves to the second limiting stop 3, the detection unit 12 will send a forward positioning signal to the control unit 13, and the control unit 13 will stop the drive unit 11, so that the return trolley 1 stops at the second limiting stop 3.

[0032] Then, the staff on the ground press the reverse button on the remote control 4, and the control unit 13 controls the drive unit 11 to drive the return trolley 1 to move towards the head end of the track lifeline 5 until the return trolley 1 returns to the first limit stop 2. The detection unit 12 will send a reverse position signal to the control unit 13, and the control unit 13 will stop the drive unit 11 to stop the return trolley 1 at the first limit stop 2.

[0033] Example 2

[0034] The drive unit 11 includes a drive wheel 111, a driven wheel 112, and a motor 113. The outer edge of the drive wheel 111 abuts against the track portion 51 of the track lifeline 5. The driven wheel 112 is fixedly installed on the top of the retrieval trolley 1 and is slidably connected to the lifeline portion 52 of the track lifeline 5. The motor 113 is correspondingly driven by the drive wheel 111. Through the cooperation of the drive wheel 111 and the driven wheel 112, the movement of the retrieval trolley 1 on the track lifeline 5 can be made more stable. The movement of the retrieval trolley 1 is driven by the friction between the drive wheel 111 and the track. The forward and backward movements of the retrieval trolley 1 are determined by the motor 113 driving the drive wheel 111 to rotate forward and backward.

[0035] Furthermore, the track section 51 of the track lifeline 5 includes a track body 511 and two C-shaped steels 512, wherein the bottom of the track body 511 is fixedly connected to the two C-shaped steels 512, and the openings of the two C-shaped steels 512 correspond to each other and are spaced apart; the lifeline section 52 of the track lifeline 5 passes through the opening space of the two C-shaped steels 512.

[0036] In this structure, the track body 511 serves as a fixed component of the track lifeline 5 as a whole. It is generally fixedly installed on the work platform to provide support for the C-shaped steel 512 and the lifeline section 52. The suspension device 6 is slidably installed on the lifeline section 52 to provide safety protection for workers working at heights. The two C-shaped steels 512 are used for the movement of the driven wheels 112, and the space formed by the openings of the two C-shaped steels 512 can be used for the lifeline section 52 to pass through.

[0037] As needed, the driven wheel 112 includes a mounting plate 1121, a rotating shaft 1122, and a wheel set 1123. The bottom of the mounting plate 1121 is fixedly connected to the top of the positioning trolley 1. The top of the mounting plate 1121 is provided with multiple rotating shafts 1122 perpendicular to the plate surface. The mounting plate 1121 is provided with through holes for the lifeline part 52 to pass through. A wheel set 1123 is rotatably mounted on each of the rotating shafts 1122. The two wheels of the wheel set 1123 are respectively located in two C-shaped steels 512.

[0038] Example 3

[0039] The control unit 13 includes a built-in power supply 131, a microcontroller 132, and an infrared receiver 133. The built-in power supply 131 supplies power to the motor 113 and the microcontroller 132. The signal input pins of the microcontroller 132 are electrically connected to the detection unit 12 and the infrared receiver 133, respectively. The control output pins of the microcontroller 132 are electrically connected to the motor 113. The infrared receiver 133 is signal-connected to the remote controller 4 and receives signals emitted by the remote controller 4 through the infrared receiver 133.

[0040] The microcontroller 132 receives and controls the input signals. Specifically, it receives the walking control signal from the remote controller 4 and the stop signal from the detection unit 12. The control is as follows: when the forward signal is received, the motor 113 is controlled to rotate forward, driving the homing trolley 1 to move towards the end of the track lifeline 5; when the forward signal is received, the motor 113 is controlled to rotate in reverse, driving the homing trolley 1 to move towards the beginning of the track lifeline 5; when the stop signal is received, the motor 113 is controlled to stop, bringing the homing trolley 1 to a standstill.

[0041] In addition, the microcontroller 132 is an STM32F103C8T6 model. This microcontroller 132 is equipped with a variety of peripheral interfaces, including but not limited to USART, SPI, I2C, CAN, USB, etc., which allows it to easily connect to various sensors, including limit switches, infrared receiver 133 and motor 113. It has direct memory access (DMA) functionality, which allows data transfer to occur directly between memory and peripherals without going through the CPU, thereby reducing the CPU load and improving the overall system efficiency. It is particularly suitable for applications that require fast response. It also has multiple general-purpose timers and advanced control timers, supports PWM output, and is very suitable for speed control of motor 113. Furthermore, it has a flexible power management mode, which helps to extend the working time of battery-powered devices and is also more energy-efficient and environmentally friendly.

[0042] In addition, the detection unit 12 includes a first detection switch 121 installed on the head end face of the retrieval trolley 1 and a second detection switch 122 installed on the tail end face of the retrieval trolley 1, and both the first detection switch 121 and the second detection switch 122 are electrically connected to the signal input pin of the microcontroller 132.

[0043] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A safety suspension device repositioning system for a lifeline for fall prevention in high-altitude operations, comprising a repositioning trolley (1), a first limiting stop (2), and a second limiting stop (3); the top of the repositioning trolley (1) is slidably connected to the lifeline track (5), and the tail end face of the repositioning trolley (1) is used to push multiple suspension devices (6); the repositioning trolley (1) is provided with a drive unit (11), a detection unit (12), and a control unit (13), wherein the drive unit (11) is used to drive the repositioning trolley (1) to move linearly along the lifeline track (5), and the detection unit (12) is used to determine whether the repositioning trolley (1) is in contact with the first limiting stop. The first limiting edge (2) or the second limiting edge (3) abuts against each other. The control unit (13) is used to receive user control commands and the positioning command of the detection unit (12), and control the drive unit (11) to start or stop. The first limiting edge (2) is fixedly installed at the head end of the track lifeline (5), and the second limiting edge (3) is fixedly installed at the tail end of the track lifeline (5). The return trolley (1) is located between the two limiting baffles, and the head end face of the return trolley (1) abuts against the first limiting edge (2). The second limiting edge (3) and the tail end of the track lifeline (5) are used to place all suspension devices (6).

2. The safety suspension device repositioning system for high-altitude operation fall protection lifeline according to claim 1, characterized in that: The drive unit (11) includes a drive wheel (111), a driven wheel (112), and a motor (113). The outer edge of the drive wheel (111) is in contact with the track section (51) of the track lifeline (5). The driven wheel (112) is fixedly installed on the top of the return trolley (1) and is slidably connected to the lifeline section (52) of the track lifeline (5). The motor (113) is correspondingly driven to the drive wheel (111).

3. The safety suspension device return system for high-altitude operation fall protection lifeline according to claim 2, characterized in that: The track section (51) of the track lifeline (5) includes a track body (511) and two C-shaped steels (512), wherein the bottom of the track body (511) is fixedly connected to the two C-shaped steels (512), and the openings of the two C-shaped steels (512) correspond to each other and are spaced apart; the lifeline section (52) of the track lifeline (5) passes through the opening space of the two C-shaped steels (512).

4. The safety suspension device return system for high-altitude operation fall protection lifeline according to claim 3, characterized in that: The driven wheel (112) includes a mounting plate (1121), a rotating shaft (1122), and a wheel set (1123). The bottom of the mounting plate (1121) is fixedly connected to the top of the retrieval trolley (1). The top of the mounting plate (1121) is provided with multiple rotating shafts (1122) perpendicular to the plate surface. The mounting plate (1121) is provided with through holes for the lifeline part (52) to pass through. A wheel set (1123) is rotatably mounted on each rotating shaft (1122). The two wheels of the wheel set (1123) are respectively located in two C-shaped steels (512).

5. The safety suspension device return system for high-altitude operation fall protection lifeline according to claim 2, characterized in that: The control unit (13) includes a built-in power supply (131), a microcontroller (132) and an infrared receiver (133). The built-in power supply (131) supplies power to the motor (113) and the microcontroller (132) respectively. The signal input pins of the microcontroller (132) are electrically connected to the detection unit (12) and the infrared receiver (133) respectively. The control output pins of the microcontroller (132) are electrically connected to the motor (113). The infrared receiver (133) is signal connected to the remote controller (4).

6. The safety suspension device return system for high-altitude operation fall protection lifeline according to claim 5, characterized in that: The microcontroller (132) is an STM32F103C8T6.

7. The safety suspension device repositioning system for high-altitude operation fall protection lifeline according to claim 5, characterized in that: The detection unit (12) includes a first detection switch (121) installed on the head end face of the homing trolley (1) and a second detection switch (122) installed on the tail end face of the homing trolley (1), and both the first detection switch (121) and the second detection switch (122) are electrically connected to the signal input pin of the microcontroller (132).

8. The safety suspension device return system for high-altitude operation fall protection lifeline according to claim 1, characterized in that: The rear end face of the return trolley (1) is provided with multiple push contacts.

9. The safety suspension device return system for high-altitude operation fall protection lifeline according to claim 1, characterized in that: The user control commands are issued by the user operating the remote control (4).

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