Guide rail falling protector

Abstract

The invention discloses a guide rail falling protector which comprises a falling protector body and a locking rod arranged in the falling protector body and rotationally connected between the falling protector body in the middle, the bottom of the locking rod is matched with a rail, and a hanging ring connected with a safety rope is arranged at the upper end of the locking rod. A roller matched with the track is arranged at the upper end of the falling protector body, and a motor for driving the roller to rotate is arranged in the falling protector body. The motor drives the rollers to rotate, so that the relative position of a user can be sensed in real time, and the falling protector automatically ascends and descends along the anti-falling guide rail along with ascending and descending of the user, so that the falling protector is always positioned within a safe distance above the gravity center of the user, and the falling distance is shortened; the injury caused by overlarge impact force during falling can be prevented, and the safety of climbing the electric power tower is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of electric power maintenance, in particular to a guide rail fall arrester. Background Art

[0002] The existing guide rail fall arrester is completely composed of a metal mechanical structure, and the movement along the fall arrester guide rail is completely controlled by external forces. This feature means that when the fall arrester is used, the worker needs to move a certain distance and then manually pull the fall arrester to keep a suitable distance from the human body. The use process is cumbersome and consumes the user's physical strength and energy. If the worker does not actively pull the fall arrester, the fall arrester will slide below the worker's center of gravity under the action of gravity, and then fall will occur. The fall distance is relatively large, and the falling person may suffer serious injuries such as fractures under the strong impact force, which poses certain safety hazards. Summary of the invention

[0003] The object of the present invention is to solve the above-mentioned problem and provide a guide rail fall arrester so that the fall arrester is always located within a safe distance above the center of gravity of the human body, shortening the falling distance and greatly improving the safety of climbing power poles and towers.

[0004] The technical solution adopted by the present invention to solve the technical problem is:

[0005] A guide rail fall arrester comprises a fall arrester body, a locking rod arranged in the middle of the fall arrester body and rotatably connected to the fall arrester body, the bottom of the locking rod cooperates with the track, the upper end of the locking rod is provided with a lifting ring connected to a safety rope, the upper end of the fall arrester body is provided with a roller cooperating with the track, and the fall arrester body is provided with a motor for driving the roller to rotate.

[0006] Furthermore, a shell is provided at the upper end of the fall arrester body, a battery and a controller are provided in the shell, and a sensor for sensing the distance between the controller and the human body is provided on the controller.

[0007] Furthermore, the bottom of the fall arrester body is provided with limit rods on both upper and lower sides of the locking rod for limiting the rotation angle of the locking rod.

[0008] Furthermore, a support wheel cooperating with the track is provided on the side of the fall arrester body.

[0009] Furthermore, a sliding block which slides on the fall arrester body is provided at the upper end of the fall arrester body, and the locking rod is connected to the sliding block via a connecting rod.

[0010] Furthermore, a slide groove cooperating with the slide block is provided in the fall arrester body.

[0011] Furthermore, the motor output shaft is connected to the roller shaft through a connecting mechanism.

[0012] Furthermore, the connecting mechanism includes a No. 1 connecting rod, a No. 2 connecting rod, a No. 1 belt, and a No. 2 belt. The No. 1 connecting rod is hinged to the No. 2 connecting rod, and a rotatable axle pin is provided at the hinge between the two. The end of the No. 1 connecting rod away from the No. 2 connecting rod is rotatably connected to the motor output shaft, and the end of the No. 2 connecting rod away from the No. 1 connecting rod is rotatably connected to the rotating shaft of the roller. The motor output shaft is connected to the rotating shaft of the roller via the No. 1 belt and the No. 2 belt.

[0013] Furthermore, a long hole is provided on the side of the slide groove, and the roller shaft passes through the long hole.

[0014] The beneficial effects of the present invention are:

[0015] 1. The present invention comprises a fall arrester body, a locking rod rotatably connected between the fall arrester body and the middle position of the fall arrester body, the bottom of the locking rod cooperates with the track, the upper end of the locking rod is provided with a lifting ring connected with a safety rope, the upper end of the fall arrester body is provided with a roller that cooperates with the track, and the fall arrester body is provided with a motor that drives the roller to rotate. The motor drives the roller to rotate, and the relative position of the user can be sensed in real time, and the user's ascent and descent can be followed, and the fall arrester can automatically rise and fall along the fall arrester guide rail, so that the fall arrester is always located within a safe distance above the user's center of gravity, shortening the falling distance, and preventing injuries caused by excessive impact force when falling, which greatly improves the safety of climbing power poles and towers. It can effectively prevent workers from falling from high altitudes due to physical exhaustion, extreme weather or other factors during the process of climbing power poles and towers. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a front view of the first embodiment of the present invention;

[0018] Figure 2 It is a schematic diagram of signal transmission;

[0019] Figure 3 This is a front view of the second embodiment of the present invention;

[0020] Figure 4 It is a schematic diagram of the connecting mechanism structure of the present invention.

[0021] In the figure: fall arrester body 1, locking rod 2, lifting ring 3, roller 4, motor 5, sensor 6, limit rod 7, slider 8, connecting rod 9, slide groove 10, No. 1 connecting rod 11, No. 2 connecting rod 12, No. 1 belt 13, No. 2 belt 14, long hole 15, support wheel 16, shell 17, battery 18, controller 19. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, 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 should fall within the scope of protection of the present invention.

[0023] Embodiment 1:

[0024] like Figure 1 As shown, a guide rail fall arrester comprises a fall arrester body 1, a locking rod 2 arranged in the fall arrester body 1 and rotatably connected between the fall arrester body 1 and the middle position, the bottom of the locking rod 2 cooperates with the track, the upper end of the locking rod 2 is provided with a lifting ring 3 connected with a safety rope, the upper end of the fall arrester body 1 is provided with a roller 4 cooperating with the track, and the fall arrester body 1 is provided with a motor 5 driving the roller 4 to rotate. The motor 5 drives the roller to rotate, and the relative position of the user can be sensed in real time, and the user's ascent and descent are followed, and the fall arrester automatically rises and descends along the fall arrester guide rail, so that the fall arrester is always located within a safe distance above the user's center of gravity, shortening the falling distance, and preventing injuries caused by excessive impact force when falling, which greatly improves the safety of climbing power poles and towers. It can effectively prevent workers from falling from high altitudes due to physical exhaustion, extreme weather or other factors during the process of climbing power poles and towers.

[0025] like Figure 1 As shown, the upper end of the fall arrester body 1 is provided with a housing 17, and a battery 18 and a controller 19 are provided in the housing 17. The controller 19 is provided with a sensor 6 for sensing the distance between the human body and the human body. The controller 19 includes two parts: a human body sensor and a logic discriminator. The sensor can sense the relative position, movement direction, and movement speed of the human body within a distance of meters, and convert the relevant information into an electrical signal and transmit it to the logic discriminator. The logic discriminator can issue a motion instruction to the motor after making a judgment on the electrical signal.

[0026] Sensor 6 is based on UWB (Ultra Wide Band) communication technology, which is a wireless carrier communication technology using a frequency bandwidth of more than 1 GHz. It uses nanosecond non-sinusoidal narrow pulses to transmit data, and occupies a large spectrum range. Although wireless communication is used, its data transmission rate can reach more than several hundred megabits per second.

[0027] like Figure 2 As shown, each control module is bound to a UWB tag, which can be made into a work badge for workers to wear. In the above figure, there are three dotted lines. The middle dotted line is defined as the baseline as the zero point, the upper dotted line is used as the upper threshold, and the lower dotted line is used as the lower threshold. When the control module detects that the position of the tag reaches the upper threshold line, the motor is automatically started to control the motion component to run upward, and the position of the UWB tag is continuously detected. When the position of the UWB tag reaches the position of the baseline, the control module controls the motor to stop; when the control module detects that the position of the tag reaches the lower threshold line, the motor is automatically started to control the motion component to run downward, and the position of the UWB tag is continuously detected. When the position of the UWB tag reaches the position of the baseline, the control module controls the motor to stop.

[0028] UWB technology can realize precise ranging function with ranging accuracy reaching centimeter level.

[0029] UWB (ultra-wideband technology) realizes the ranging function mainly through two methods: TOF (time of flight) method and DS-TWR (double-sided two-way ranging) method.

[0030] TOF method: This method involves the sending device sending a short pulse signal, and the receiving device records the time of signal arrival after receiving the pulse signal, and then calculates the signal's flight time based on the difference between the sending and receiving times. Finally, the flight time is converted into distance using the speed of light or the speed of signal propagation. This method is simple and direct and is one of the basic technologies for UWB ranging.

[0031] DS-TWR method: This is a more advanced ranging method that is an extension of the TOF method. It uses two round-trip time measurements and combines these data to give a time-of-flight result, which can reduce errors even in the case of long response delays. DS-TWR involves four information exchanges between device A and device B: A sends a ranging request message, B returns the corresponding ranging response message, and then B sends a ranging request message and A returns the corresponding ranging response message. In this way, the status of both parties in ranging is equal, and the ranging error caused by clock frequency deviation can be reduced.

[0032] The two methods have their own advantages. The TOF method is simple and easy to implement, while the DS-TWR method can provide higher accuracy and stronger anti-interference, and is suitable for applications with extremely high precision requirements. The characteristics of UWB technology include the use of nanosecond to microsecond non-sinusoidal narrow pulses to transmit data, with extremely wide bandwidth, high transmission rate, low power consumption, and high security, which makes it perform well in situations where high-precision positioning is required.

[0033] like Figure 1 As shown, the side of the fall arrester body 1 is provided with a support wheel 16 that cooperates with the track.

[0034] like Figure 1 As shown, the bottom of the fall arrester body 1 is provided with limit rods 6 on both the upper and lower sides of the locking rod 2 for limiting the rotation angle of the locking rod 2.

[0035] Embodiment 2:

[0036] like Figure 2 As shown, a slider 8 is provided at the upper end of the fall arrester body 1, and the locking rod 2 is connected to the slider 8 through a connecting rod 9. When a person climbs up, the locking rod 2 is driven to rotate, and when the locking rod 2 rotates, the slider 8 is pushed to move toward the track under the action of the connecting rod 9, and the roller 4 cooperates with the track to drive the fall arrester body to move upward.

[0037] like Figure 3 As shown, a slide groove 10 cooperating with the slide block 8 is provided in the fall arrester body 1 .

[0038] The output shaft of the motor 5 is connected to the rotating shaft of the roller 4 through a connecting mechanism.

[0039] like Figure 3 As shown, the connecting mechanism includes a No. 1 connecting rod 11, a No. 2 connecting rod 12, a No. 1 belt 13, and a No. 2 belt 14. The No. 1 connecting rod 11 is hinged to the No. 2 connecting rod 12, and a rotatable axle pin is provided at the hinge between the two. The end of the No. 1 connecting rod 11 away from the No. 2 connecting rod 12 is rotatably connected to the output shaft of the motor 5, and the end of the No. 2 connecting rod 12 away from the No. 1 connecting rod 11 is rotatably connected to the rotating shaft of the roller 4. The output shaft of the motor 5 is connected to the rotating shaft of the roller 4 through the No. 1 belt 13 and the No. 2 belt 14.

[0040] During use, when the output shaft of the motor 5 rotates, it drives the No. 1 belt 13 to move, and the No. 1 belt 13 drives the No. 2 belt 14 to move, thereby causing the roller 4 to rotate accordingly. Among them, two coaxially arranged pulleys are fixed on the axle pins hinged between the No. 1 connecting rod 11 and the No. 2 connecting rod 12, one of which is connected to the output shaft of the motor 5 through the No. 1 belt 13, and the other is connected to the rotating shaft of the roller 4 through the No. 2 belt 14.

[0041] like Figure 3 As shown, a long hole 15 is provided on the side of the slide groove 10, and the rotating shaft of the roller 4 passes through the long hole 15.

[0042] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "left", "right", "up", "down", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection, it can be a direct connection, it can be an indirect connection through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A guide rail fall arrester, characterized in that: The invention comprises a fall arrester body (1), a locking rod (2) arranged in the fall arrester body (1) and rotatably connected to the fall arrester body (1) at a middle position, the bottom of the locking rod (2) being matched with the track, the upper end of the locking rod (2) being provided with a lifting ring (3) connected with a safety rope, the fall arrester body (1) being provided with a roller (4) matching with the track, and the fall arrester body (1) being provided with a motor (5) for driving the roller (4) to rotate.

2. A guide rail fall arrester as claimed in claim 1, characterized in that: The upper end of the fall arrester body (1) is provided with a shell (17), a battery (18) and a controller (19) are arranged in the shell (17), and the controller (19) is provided with a sensor (6) for sensing the distance between the controller and the human body.

3. A guide rail fall arrester as claimed in claim 1, characterized in that: The side surface of the fall arrester body (1) is provided with a supporting wheel (16) which cooperates with the track.

4. A guide rail fall arrester as claimed in claim 1, characterized in that: The bottom of the fall arrester body (1) is provided with limit rods (7) on both upper and lower sides of the locking rod (2) for limiting the rotation angle of the locking rod (2).

5. A guide rail fall arrester as claimed in claim 1, characterized in that: The upper end of the fall arrester body (1) is provided with a sliding block (8) which slides on the fall arrester body (1), and the locking rod (2) is connected to the sliding block (8) via a connecting rod (9).

6. A guide rail fall arrester as claimed in claim 5, characterized in that: A sliding groove (10) cooperating with the sliding block (8) is provided in the fall arrester body (1).

7. A guide rail fall arrester as claimed in claim 5, characterized in that: The output shaft of the motor (5) is connected to the rotating shaft of the roller (4) via a connecting mechanism.

8. A guide rail fall arrester as claimed in claim 7, characterized in that: The connecting mechanism comprises a No. 1 connecting rod (11), a No. 2 connecting rod (12), a No. 1 belt (13), and a No. 2 belt (14); the No. 1 connecting rod (11) is hinged to the No. 2 connecting rod (12), and a rotatable axle pin is provided at the hinge between the two; the end of the No. 1 connecting rod (11) away from the No. 2 connecting rod (12) is rotatably connected to the output shaft of the motor (5); the end of the No. 2 connecting rod (12) away from the No. 1 connecting rod (11) is rotatably connected to the rotating shaft of the roller (4); and the output shaft of the motor (5) is connected to the rotating shaft of the roller (4) via the No. 1 belt (13) and the No. 2 belt (14).

9. A guide rail fall arrester as claimed in claim 6, characterized in that: A long hole (15) is provided on the side of the slide groove (10), and the rotating shaft of the roller (4) passes through the long hole (15).

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