Intelligent control differential type falling protector capable of preventing pendulum effect

Abstract

The invention discloses an intelligent control differential type falling protector capable of preventing a pendulum effect, and aims to solve the problem of low safety of high-altitude operation in the prior art. According to the falling protector, through the real-time monitoring and intelligent control technology, the pendulum effect caused by inclination of the mounting end is effectively prevented, and therefore operation safety is improved. The falling protector is composed of an electronic inclinometer detection unit, an early warning detection unit and an anti-inclination angle self-locking device, when the inclination angle exceeds a set second-level early warning threshold value, the system automatically executes locking operation, prevents a safety rope from further stretching out and drawing back, and prevents potential dangers, through the technical scheme, the falling protector can be intelligently adjusted and controlled, and the safety coefficient of the falling protector is improved. And different working environments and conditions can be adapted, so that a safer and more reliable working guarantee is provided for high-altitude working personnel. According to the method, the operation safety is improved, the operation efficiency is optimized, and the method has remarkable technical advantages and application value.

Description

Technical Field

[0001] The invention relates to a differential fall arrester, in particular to an intelligently controlled differential fall arrester capable of preventing pendulum effect. Background Art

[0002] There are extremely high safety risks in working at heights. As a key safety device, the fall arrester plays a vital role. The working principle of the existing differential fall arrester is similar to that of a car seat belt. When a person moves normally, the steel cable or belt of the fall arrester will freely expand and contract with the movement of the user. Once a rapid fall is detected, the internal braking mechanism will immediately start to stop the user's fall within a short distance. The differential has the following defects: locking delay; high maintenance requirements; many environmental restrictions, etc. Therefore, the performance of the differential fall arrester may be affected and safety cannot be fully guaranteed.

[0003] The pendulum effect refers to when a person falls from a height, because the fixing point of the fall arrester is not vertically below, the person will swing horizontally during the fall, similar to the movement of a pendulum. Its main hazards are as follows: Secondary impact risk: During the pendulum movement, people may hit surrounding structures or objects, causing secondary injuries. Uncontrollable falling direction: The pendulum effect makes the falling direction difficult to predict, increasing the difficulty and risk of rescue. Increased psychological pressure: The pendulum effect will cause height workers to experience greater psychological pressure during the fall, which may affect their future work psychological state. Uneven force on the equipment: Uneven force on the fall arrester and the fixing point may cause damage to the equipment or the fixing point, affecting the effectiveness and service life of the fall arrester. Summary of the invention

[0004] The purpose of the present invention is to provide an anti-fall high-altitude operation protection device designed for the pendulum effect to improve the safety of high-altitude operations, and to provide an intelligent control differential fall arrester that can prevent the pendulum effect.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: An intelligent controlled differential anti-falling device for preventing pendulum effect, comprising a fixed mounting end connected to the upper side of the anti-falling device and an anti-falling mounting end connected to the lower side, wherein a differential anti-falling device and an anti-pendulum intelligent control system are installed inside the anti-falling device, and characterized in that: the anti-pendulum intelligent control system comprises an electronic inclinometer detection unit, an inclination warning unit and an anti-inclination self-locking device, wherein the electronic inclinometer detection unit and the inclination warning unit are integrated with an anti-pendulum control unit and are connected to the anti-inclination self-locking device; The electronic inclinometer detection unit includes a micro electronic inclinometer and a data processing unit. The micro electronic inclinometer has an acceleration sensor built in. The data processing unit converts the component changes of gravity in different directions detected by the acceleration sensor into angle readings. The electronic inclinometer has high accuracy, can display the measurement results in real time, and has data recording and transmission functions, and is suitable for high-precision and dynamic measurements. The tilt warning unit includes an intelligent module for horizontal tilt, which determines the threshold of horizontal tilt according to the shape and suspension height of the transmission tower, and gives a recommended threshold value based on historical data. When the horizontal tilt is greater than or equal to the threshold once, a first-level warning is triggered. When the horizontal tilt is greater than or equal to the threshold twice in 5 seconds, a second-level warning is triggered. The anti-tilt self-locking device includes a locking pin, an electric telescopic rod 1, a control chip, a receiver, and a power supply. The upper part of the anti-tilt self-locking device is a shell with an opening on the lower side, and the lower part is a safety rope pipe connected to the opening on the lower side of the shell and a safety rope located in the safety rope pipe. The electric telescopic rod 1 and the locking pin are located at the top of the shell, the electric telescopic rod 1 is connected to the locking pin, the motor for controlling the electric telescopic rod 1 is connected to the receiver signal, the receiver receives the secondary warning signal of the anti-pendulum control unit, the control chip, the receiver and the power supply are located on the side of the shell, one end of the safety rope is connected to the differential anti-falling device, and the other end is connected to the anti-falling mounting end, and the safety rope in the safety rope pipe is controlled by the locking pin to be in a conducting or locked state.

[0006] As a further preferred scheme, the anti-tilt self-locking device also includes a state switch, the state switch includes an upper state switch and a lower state switch, the upper state switch and the lower state switch are connected to the power supply and the control chip at the same time, the control chip receives the secondary warning signal of the anti-pendulum control unit through a receiver to control the opening and closing of the upper state switch and the lower state switch, and the locking pin is locked by the upper state switch or the lower state switch.

[0007] As a further preferred embodiment, the upper state switch or the lower state switch includes a receiver 1, an insulating shell, a steel ball pad, an electric telescopic rod 2 and a steel ball. The receiver 1 is connected to the control chip signal. The insulating shell has a telescopic space. The electric telescopic rod 2 is located inside the insulating shell. The motor that controls the electric telescopic rod 2 is connected to the receiver 1 signal. The steel ball can be retracted or extended inside and outside the insulating shell. The electric telescopic rod 2 is connected to the steel ball through the steel ball pad to control the extension and retraction of the steel ball. The steel ball pad is made of insulating material. The locking pin has a limit space matching the steel ball and can be locked by the steel ball extending out of the insulating shell.

[0008] As a further preferred solution, the micro electronic inclinometer is arranged on the inner top of the fall arrester to avoid additional shaking of the wearing end of the fall arrester.

[0009] As a further preferred solution, the control chip, receiver and power supply form a control drive unit, which cooperates with wireless remote control to achieve remote operation adjustment. After the remote control signal is sent, the receiver processes the received signal to control the lifting and lowering of the anti-fall rope.

[0010] As a further preferred solution, the first-level warning and the second-level warning are distinguished by the beeping frequency.

[0011] As a further preferred solution, anti-pendulum and anti-fall are independently controlled, and the anti-fall is controlled by the differential anti-fall device inside the fall arrester and has a higher priority, directly triggering the locking device based entirely on the descent acceleration.

[0012] As a further preferred solution, the safety rope of the fall arrester is made of flame-retardant material and is detachable. The safety rope is promptly maintained or replaced after use and the material is reliable and durable, which can effectively improve the safety of the fall arrester.

[0013] As a further preferred solution, the fixed mounting end and the anti-fall mounting end adopt self-locking hooks, which can meet the overhead line operation needs in different scenarios. Beneficial Effects

[0014] The present invention has the following beneficial effects: The intelligent controlled differential fall arrester for preventing pendulum effect of the present invention can sense the horizontal inclination angle of the fall arrester in real time and perform differential fall prevention, thereby improving the functionality of traditional safety equipment and enhancing the safety guarantee of transmission tower construction and maintenance operations, providing a more reliable and intelligent safety solution for high-altitude operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the device of the present invention; Figure 2 It is a structural schematic diagram of the anti-tilt self-locking device of the present invention; Figure 3 This is a schematic diagram of the internal structure of the status switch.

[0016] Among them are: 1. Fall arrester; 11. Fixed mounting end; 12. Fall arrester mounting end; 2. Locking pin; 31. Upper status switch; 32. Lower status switch; 301. Receiver one; 302. Insulating shell; 303. Steel ball pad; 304. Electric telescopic rod two; 305. Steel ball; 4. Control chip; 5. Receiver; 6. Power supply; 7. Safety rope; 8. Safety rope pipe; 9. Electric telescopic rod one. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] In the description of the present invention, it should be understood that the terms "left side", "right side", "upper part", "lower part" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. "First", "second" and the like do not indicate the importance of the components, and therefore cannot be understood as limiting the present invention. The specific dimensions used in this embodiment are only for illustrating the technical solution, and do not limit the scope of protection of the present invention.

[0019] like Figure 1 As shown, an intelligent controlled differential fall arrester for preventing pendulum effect comprises a fixed mounting end 11 connected to the upper side of the fall arrester 1 and an anti-fall mounting end 12 connected to the lower side. The fixed mounting end 11 and the anti-fall mounting end 12 of the fall arrester adopt self-locking hooks, which can meet the overhead line operation requirements in different scenarios. An electronic inclinometer detection unit, an inclination warning unit and an anti-tilt self-locking device are installed inside the fall arrester 1. The electronic inclinometer detection unit and the inclination warning unit are integrated with an anti-pendulum control unit and connected to the anti-tilt self-locking device. The electronic inclinometer detection unit includes a miniature electronic inclinometer and a data processing unit. The miniature electronic inclinometer is arranged at the hanging end of the fall arrester 1 to avoid extra shaking of the wearing end of the fall arrester 1. The miniature electronic inclinometer has a built-in acceleration sensor. The acceleration sensor is usually a MEMS accelerometer. The acceleration sensor can detect the components of gravity in different directions. When the inclinometer is tilted, the sensor will detect the corresponding gravity changes, and these changes will be converted into angle readings through the data processing unit. The electronic inclinometer has high accuracy, can display the measurement results in real time, and has data recording and transmission functions, and is suitable for high-precision and dynamic measurements. The inclination warning unit includes an intelligent module for the horizontal inclination. The threshold of the horizontal inclination is determined according to the shape and suspension height of the transmission tower, and a recommended threshold value is given according to previous historical data. When the suspension height is less than 20m, the recommended threshold value is not greater than 45°. When the suspension height is greater than or equal to 20m, the recommended threshold value is not greater than 30°. When the horizontal inclination angle is greater than or equal to the threshold value once, a first-level warning is triggered. When the horizontal inclination angle is greater than or equal to the threshold value twice, a second-level warning is triggered. The first-level warning and the second-level warning are distinguished by the frequency of the beeping sound.

[0020] like Figure 2 and Figure 3As shown, the anti-tilt self-locking device includes a locking pin 2, an electric telescopic rod 9, a state switch, a control chip 4, a receiver 5, and a power supply 6. The upper part is a shell with an opening on the lower side, and the lower part is a safety rope pipe 8 connected to the opening on the lower side of the shell and a safety rope 7 located in the safety rope pipe. The electric telescopic rod 9 is connected to the locking pin 2, and the motor for controlling the electric telescopic rod 9 is connected to the receiver 5 signal. The state switch includes an upper state switch 31 and a lower state switch 32. The upper state switch 31 and the lower state switch 32 are connected to the power supply 6 and the control chip 4 at the same time. The control chip 4 receives the warning signal of the anti-pendulum control unit through the receiver 5 to control the opening and closing of the upper state switch 31 and the lower state switch 32, and the locking pin 2 is limited by the upper state switch 31 or the lower state switch 32. The upper state switch 31 or the lower state switch 32 includes a receiver 1 301, an insulating shell 302, a steel ball pad 303, an electric telescopic rod 2 304 and a steel ball 305. The receiver 1 301 is connected to the control chip 4 by signal. The insulating shell 302 has a telescopic space. The electric telescopic rod 2 304 is located on the inner side of the insulating shell 302. The motor for controlling the electric telescopic rod 2 304 is connected to the receiver 1 301 by signal. The steel ball 305 can be retracted or extended inside or outside the insulating shell 302. The electric telescopic rod 2 304 is connected to the steel ball 305 through the steel ball pad 303 to control the extension and retraction of the steel ball 305. The steel ball pad 303 is made of insulating material. The locking pin 2 has a limit space matching the steel ball 305 and is locked when the steel ball 305 extends out of the insulating shell 302. Both the electric telescopic rod 1 9 and the electric telescopic rod 2 304 are scissor fork structures, which are driven by a motor and generate power by electric means to enable the scissor fork structure to perform telescopic movement.

[0021] In the normal use state, that is, when the fall arrester 1 is in the conducting state, the steel balls 305 of the upper state switch 31 and the lower state switch 32 extend out of the insulating shell 302, and the upper state switch 31 locks the locking pin 2. When the tilt angle exceeds the threshold and triggers the second-level warning, the anti-pendulum control unit of the fall arrester 1 sends an electrical signal to the receiver 5, and the receiver 5 transmits the electrical signal to the control chip 4 and the motor that controls the electric telescopic rod 9. After the internal receiver 301 of the upper state switch 31 and the lower state switch 32 receives the signal of the control chip 4, the motor in the receiver 301 controls the electric telescopic rod 2 304 to pull the steel ball 305 to first retract and then extend out of the insulating shell 302. While the steel ball 305 retracts into the insulating shell 302, the electric telescopic rod 9 controls the locking pin 2 to move downward. When the locking pin 2 drops to the lower state switch 32, the steel ball 305 has extended out of the insulating shell 302. At this time, the locking pin 2 and the lower state switch 32 are locked with each other, thereby completing the locking of the anti-tilt self-locking device. The safety rope 7 is controlled by the locking pin 2. When the locking pin 2 and the lower state switch 32 are locked with each other, the safety rope pipe 8 is in a locked state, and the head of the locking pin 2 limits the extension and retraction of the safety rope 7, and the fall arrester 1 cannot continue to extend and retract the safety rope 7. The fall arrester 1 automatically adjusts the working state according to the information fed back by the anti-pendulum control unit to ensure that it is always in a locked state before falling. The safety rope 7 is designed to be detachable and made of flame-retardant material, which is durable. After use, the safety rope can also be maintained or replaced in time, which can effectively improve the safety of the fall arrester. The control chip 4, the receiver 5 and the power supply 6 form a control drive unit, which cooperates with wireless remote control to realize remote operation adjustment. After the remote control signal is sent, the receiver processes the received signal to control the lifting and lowering of the fall arrester rope. When the staff is safe, the remote control sends a signal, and the electric telescopic rod 9 pulls the locking pin 2 to move upward. At this time, the steel ball 305 in the upper state switch 31 and the lower state switch 32 is retracted and then extended at the same time, and finally the upper state switch 31 limits the locking pin 2, so that the fall arrester 1 is restored to a normal use state.

[0022] When the inclination angle of the fall arrester 1 does not reach the threshold value but the acceleration is too fast, the differential anti-fall device in the fall arrester 1 directly triggers the anti-fall function, and the priority of the anti-fall function is higher than the anti-pendulum function.

[0023] Working principle: The tilt warning unit of the anti-pendulum control unit activates the warning and limit functions through the set secondary threshold according to the data received from the electronic inclinometer detection unit. If the horizontal angle of the worker reaches a certain dangerous threshold, the system will automatically adjust to prevent further angle changes and prevent falls due to excessive swings, thereby significantly improving the overall safety of workers working at height on transmission towers.

[0024] The preferred embodiments of the present invention are described in detail above; however, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and these equivalent transformations all belong to the protection scope of the present invention.

Claims

1. An intelligently controlled differential anti-falling device for preventing pendulum effect, comprising a fixed mounting end (11) connected to the upper side of the anti-falling device (1) and an anti-falling mounting end (12) connected to the lower side, wherein a differential anti-falling device and an anti-pendulum intelligent control system are installed inside the anti-falling device (1), characterized in that: The anti-pendulum intelligent control system comprises an electronic inclinometer detection unit, an inclination warning unit and an anti-tilt self-locking device, wherein the electronic inclinometer detection unit and the inclination warning unit are integrated with an anti-pendulum control unit and connected to the anti-tilt self-locking device; The electronic inclinometer detection unit includes a micro electronic inclinometer and a data processing unit. The micro electronic inclinometer has an acceleration sensor built in. The data processing unit converts the component changes of gravity in different directions detected by the acceleration sensor into angle readings. The tilt warning unit includes an intelligent module for horizontal tilt, which gives a threshold recommendation value based on previous historical data. When the horizontal tilt is greater than or equal to the threshold once, a first-level warning is triggered. When the horizontal tilt is greater than or equal to the threshold twice in 5 seconds, a second-level warning is triggered. The anti-tilt self-locking device comprises a locking pin (2), an electric telescopic rod (9), a control chip (4), a receiver (5), and a power supply (6). The upper part of the anti-tilt self-locking device is a shell with an opening at the lower side, and the lower part is a safety rope pipe (8) connected to the opening at the lower side of the shell and a safety rope (7) located in the safety rope pipe (8). The electric telescopic rod (9) and the locking pin (2) are located at the top of the shell. The electric telescopic rod (9) is connected to the locking pin (2). The motor for controlling the electric telescopic rod (9) is connected to the receiver (5) by signal. The receiver (5) receives a secondary warning signal from the anti-pendulum control unit. The control chip (4), the receiver (5), and the power supply (6) are located at the side of the shell. One end of the safety rope (7) is connected to the differential anti-falling device, and the other end is connected to the anti-falling mounting end (12). The safety rope (7) in the safety rope pipe (8) is controlled by the locking pin (2) to be in a conducting or locking state.

2. The intelligent controlled differential anti-pendulum effect anti-fall device according to claim 1, characterized in that: The anti-tilt self-locking device further comprises a state switch, the state switch comprising an upper state switch (31) and a lower state switch (32), the upper state switch (31) and the lower state switch (32) being connected to a power source (6) and a control chip (4) at the same time, the control chip (4) receiving a secondary warning signal from an anti-pendulum control unit via a receiver (5) to control the opening and closing of the upper state switch (31) and the lower state switch (32), and the locking pin (2) is locked by the upper state switch (31) or the lower state switch (32).

3. The intelligent controlled differential anti-pendulum effect anti-falling device according to claim 2 is characterized in that: The upper state switch (31) or the lower state switch (32) comprises a receiver 1 (301), an insulating shell (302), a steel ball pad (303), an electric telescopic rod 2 (304) and a steel ball (305); the receiver 1 (301) is connected to a control chip (4) by signal; the insulating shell (302) has a telescopic space inside; the electric telescopic rod 2 (304) is located inside the insulating shell (302); a motor for controlling the electric telescopic rod 2 (304) is connected to the receiver 1 (301) by signal; the steel ball (305) can be retracted or extended inside or outside the insulating shell (302); the electric telescopic rod 2 (304) is connected to the steel ball (305) via the steel ball pad (303) to control the extension and retraction of the steel ball (305); and the locking pin (2) has a limit space matching the steel ball (305) and can be locked by the steel ball (305) extending out of the insulating shell (302).

4. The intelligent controlled differential anti-pendulum effect anti-falling device according to claim 1 is characterized in that: The micro electronic inclinometer is arranged on the inner top of the fall arrester (1) to avoid extra shaking of the wearing end of the fall arrester (1).

5. The intelligent controlled differential anti-pendulum effect anti-falling device according to claim 1 is characterized in that: The control chip (4), the receiver (5) and the power supply (6) form a control drive unit, which cooperates with wireless remote control to achieve remote operation adjustment.

6. The intelligent controlled differential anti-pendulum effect anti-falling device according to claim 1 is characterized in that: The first and second warnings are distinguished by the beeping frequency.

7. The intelligent controlled differential anti-pendulum effect anti-fall device according to claim 1, characterized in that: The anti-pendulum and anti-fall are controlled independently. The anti-fall is controlled by the differential anti-fall device inside the anti-fall device (1) and has a higher priority, directly triggering the locking device based entirely on the falling acceleration.

8. The intelligent controlled differential anti-pendulum effect anti-falling device according to claim 1 is characterized in that: The safety rope (7) of the fall arrester (1) is made of flame-retardant material and is detachable.

9. The intelligent controlled differential anti-pendulum effect anti-falling device according to claim 1, characterized in that: The fixed mounting end (11) and the anti-fall mounting end (12) adopt self-locking hooks.

Images