High-pole lamp anti-falling brake device and use method thereof

Abstract

The application relates to the technical field of lighting devices, and discloses a high-pole lamp anti-falling braking device and a use method thereof, which comprises a lamp disc and multiple groups of braking units fixed on the lamp disc in the circumferential direction. The braking unit comprises a guide rack, an electromagnetic brake, a speed measurement module, an electromagnetic control module and a power module. The guide rack is arranged on the lamp disc in the radial direction of the lamp disc, and the end of the guide rack is provided with a guide wheel. A brake gear meshing and driving the guide rack is fixed on the brake disc of the electromagnetic brake. The speed measurement module is used for detecting the rotating speed of the brake disc. The power module is used for supplying power to the electromagnetic control module. The electromagnetic control module is used for receiving the braking signal from the speed measurement module and controlling the on-off state of the magnetic coil in the electromagnetic brake. The application can realize the purpose of fast response and instant braking in the instant of lamp disc falling, and can make the lamp disc uniformly descend to the bottom of the pole.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lighting devices, in particular to a high-pole lamp anti-falling braking device and a use method thereof. BACKGROUND

[0002] The high-pole lamp is a lighting device composed of a steel conical lamp pole and a high-power combined lamp panel, and is widely used in places such as highways, wharfs, airports, logistics places, squares and stations. The lamp panel of the high-pole lamp is transported to the top by a lifting device composed of a winch at the bottom of the lamp pole, a pulley block at the top of the lamp pole and a steel wire rope. Due to the heavy weight of the lamp panel and the high installation height, when the steel wire rope is damaged or overloaded due to force majeure during installation or later use, the steel wire rope is prone to breakage, and thus the lamp panel is prone to falling accident. Therefore, the installation of the anti-falling device on the high-pole lamp is the safety core of the high-pole lamp.

[0003] The traditional anti-falling device tightly abuts the conical lamp pole through three sets of single supporting wheels. When the steel wire rope breaks, the locking mechanism is inserted into the rack connected with the supporting wheels, thereby preventing the rack from continuing to move, so that the three sets of supporting wheels clamp the conical lamp pole, thereby preventing the lamp panel from falling. However, this structure needs a certain reaction time, which leads to a distance of more than five meters from the lamp panel falling to stopping, and a large impact force is generated on the lamp panel. After the lamp panel stops, it will be difficult to fall to the ground, and large-scale lifting equipment must be used for high-altitude operation to remove, or even the lamp pole must be laid down. In addition, the middle part of the lamp pole usually needs to be installed with a guardrail for protecting the monitoring panel, and the supporting wheels in the traditional anti-falling device cannot pass through the guardrail, which affects the application effect. SUMMARY

[0004] To solve the above problems of the prior art, the present application provides a high-pole lamp anti-falling braking device and a use method thereof, so as to achieve the purpose of fast response and instant braking in the moment of lamp panel falling, and to uniformly lower the braked lamp panel to the bottom of the pole.

[0005] The technical scheme of the present application is: a high-pole lamp anti-falling brake device, comprising a lamp disc sleeved outside a conical lamp pole and a plurality of brake units fixed on the lamp disc in the circumferential direction, the brake unit comprising a guide rack, an electromagnetic brake, a speed measurement module, an electromagnetic control module and a power module, the guide rack is arranged on the lamp disc in the radial direction of the lamp disc and moves in the direction of approaching / away from the conical lamp pole, the end of the guide rack is provided with a guide wheel in rolling contact with the outer wall of the conical lamp pole, the brake jaw of the electromagnetic brake is fixedly arranged relative to the lamp disc, the brake disc of the electromagnetic brake is rotatably arranged relative to the lamp disc, the brake disc of the electromagnetic brake is fixedly provided with a brake gear in meshing transmission with the guide rack, the speed measurement module is used to detect the rotating speed of the brake disc rotating under the driving action of the guide rack, the power module is used to supply power to the electromagnetic control module, and the electromagnetic control module is used to receive the brake signal from the speed measurement module and control the on-off state of the magnetic coil in the electromagnetic brake. After the lamp disc falls, the guide wheel moves downward along the outer wall of the conical pole body and drives the guide rack to move away from the conical lamp pole, at this time, the brake gear drives the brake disc to rotate under the meshing transmission action of the guide rack, and the electromagnetic control module controls the electromagnetic brake to brake after receiving the speed signal detected by the speed measurement module. Compared with the pure mechanical brake of the prior art, the response time is fast, the braking distance is short, and the impact force of the braking stroke is small.

[0006] The electromagnetic control module comprises a pulse circuit electrically connected with the electromagnetic brake, for sending a pulse signal to the electromagnetic brake. The pulse signal is sent to the electromagnetic coil in the electromagnetic brake to pass in a direct current with a certain pulse width, so that the electromagnetic force generated in the electromagnetic coil of the electromagnetic brake offsets a part of the clamping force generated by the brake jaw, so that the friction force between the brake jaw and the brake disc and the thrust force of the lamp disc gravity acting on the guide rack are balanced, and then the lamp disc falls uniformly until it falls to the ground.

[0007] The wireless remote control switch is wirelessly connected with the electromagnetic control module and is used to send a control signal to the electromagnetic control module.

[0008] The speed measurement module is a rotating speed sensor, the rotating speed sensor is provided with a brake threshold value, the rotating speed sensor sends a brake signal to the electromagnetic control module when the rotating speed of the brake disc reaches the brake threshold value, and the brake threshold value is calculated according to the following formula:

[0009]

[0010] In the formula, V R -brake threshold value, m / s;

[0011] V G -maximum allowable falling speed of the lamp disc, m / s;

[0012] R-brake disc radius, mm;

[0013] r - radius of brake gear, mm;

[0014] D - lower diameter of conical lamp pole, mm;

[0015] d - upper diameter of conical lamp pole, mm;

[0016] H - height of conical lamp pole, mm.

[0017] The outer side of the guide rack is provided with a sliding assembly and an elastic member, the guide rack is connected with the lamp panel through the sliding assembly, and the guide rack is driven to move away from the conical lamp pole under the action of external force; and the guide rack is connected with the sliding assembly through the elastic member, and reversely resets under the action of the elastic force of the elastic member.

[0018] The brake unit is two groups, which are symmetrically arranged on both sides of the conical lamp body, the guide wheels on each brake unit are two, and the two guide wheels are arranged along the circumferential direction of the conical lamp pole. The arrangement mode of the two brake units and the double guide wheels in each brake unit avoids the interference between the guide wheels and the crash barrier during the rolling process on the outer side of the lamp pole, and ensures the stability during the descending process of the lamp panel.

[0019] The sliding assembly comprises a rack sleeve fixed on the lamp panel, the guide rack is arranged in the rack sleeve, a guide rail part is arranged on the side of the guide rack away from the meshing teeth along the length direction, and a sliding groove matched with the guide rail part is arranged in the rack sleeve.

[0020] The elastic member is a compression spring, the compression spring is located between the guide rack and the rack sleeve, and the two ends of the compression spring are connected with the end of the guide rack away from the guide wheel and the end of the rack sleeve close to the guide wheel respectively.

[0021] The guide rail part is two T-shaped guide rails fixed side by side on the outer side of the guide rack, and the compression spring is located between the two T-shaped guide rails.

[0022] A use method of a high-pole lamp anti-falling brake device, comprising the following steps:

[0023] S1, installing the high-pole lamp, ascending the lamp panel by using the lifting device, controlling the power supply of the magnetic coil in the electromagnetic brake by the electromagnetic control module, separating the brake jaw of the electromagnetic brake from the brake disc, and keeping the guide wheel in rolling contact with the outer wall of the conical lamp pole along with the movement of the guide rack in the direction close to the conical lamp pole;

[0024] S2, the lifting device normally operates until the lamp panel is ascended to the specified height, the power supply of the magnetic coil in the electromagnetic brake is controlled by the electromagnetic control module, the brake jaw of the electromagnetic brake is in closed contact with the brake disc, and the guide rack is in the locked state;

[0025] S3, when the lamp tray of S1 is in the process of rising, the steel wire rope for connecting the lamp tray is broken, the lamp tray falls due to weight loss, the guide rack accelerates to move outward along the inclined downward movement of the guide wheel, drives the brake gear and the brake disc to rotate, the rotation speed sensor detects that the rotation speed of the brake disc reaches the brake threshold, sends a brake signal to the electromagnetic control module, the electromagnetic control module controls the electromagnetic brake through the pulse circuit, the brake disc rotates at a speed lower than the brake threshold and drives the lamp tray to descend at a constant speed;

[0026] S4, the lamp tray of S2 is operated to descend, the wireless remote control switch is used to control the electromagnetic control module to energize the magnetic coil in the electromagnetic brake, the brake jaw of the electromagnetic brake is separated from the brake disc, the guide wheel is always in rolling contact with the outer wall of the conical lamp pole along with the movement of the guide rack away from the conical lamp pole;

[0027] S5, when the lamp tray of S4 is in the process of descending, the steel wire rope for connecting the lamp tray is broken, the lamp tray falls due to weight loss, the guide rack accelerates to move outward, drives the brake gear and the brake disc to rotate at a high speed, the rotation speed sensor detects that the rotation speed of the brake disc reaches the brake threshold, sends a brake signal to the electromagnetic control module, the electromagnetic control module controls the electromagnetic brake through the pulse circuit, the brake disc rotates at a speed lower than the brake threshold and drives the lamp tray to descend at a constant speed;

[0028] S6, in the process of the lamp tray of S3 and S5 descending at a constant speed, the lamp tray needs to be stopped urgently, the wireless remote control switch is used to control the electromagnetic control module to de-energize the magnetic coil in the electromagnetic brake, the brake jaw of the electromagnetic brake is closed to contact the brake disc, and the guide rack is in a locked state;

[0029] S7, the lamp tray in the emergency stop state of S6 is restored to descend, the wireless remote control switch is used to control the electromagnetic control module to send a pulse signal to the electromagnetic brake, the brake disc is restored to rotate and drives the lamp tray to descend at a constant speed.

[0030] In summary, the present application mainly has the following beneficial effects:

[0031] The brake unit composed of the guide rack, the electromagnetic brake, the speed measurement module, the electromagnetic control module and the power module is arranged, so that when the lamp panel falls, the guide wheel moves downward along the outer wall of the conical rod and drives the guide rack to move away from the conical lamp rod, at this time, the brake gear drives the brake disc to rotate under the meshing transmission of the guide rack, the electromagnetic control module controls the electromagnetic brake to brake after receiving the speed signal detected by the speed measurement module, compared with the pure mechanical brake of the prior art, the response time is fast, the braking distance is short, and thus the impact force of the braking stroke is small; the electromagnetic control module passes the direct current with a certain pulse width into the electromagnetic coil of the electromagnetic brake through the pulse signal, so that the electromagnetic force generated in the electromagnetic coil of the electromagnetic brake offsets part of the clamping force generated by the brake clamp, so that the friction force between the brake clamp and the brake disc and the thrust of the guide rack under the reaction of the gravity of the lamp panel are balanced, and then the lamp panel falls at a constant speed until it falls to the ground, avoiding the intervention of large hoisting equipment for removal operation. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a structural schematic view of the conical lamp rod outside the installation of the present application;

[0033] Figure 2 is a bottom view of the present application installed outside the conical lamp rod;

[0034] Figure 3 is a structural schematic view of the first angle of the brake unit in the present application;

[0035] Figure 4 is a structural schematic view of the second angle of the brake unit in the present application;

[0036] Figure 5 is a structural schematic view of the third angle of the brake unit in the present application;

[0037] Figure 6 is a connection schematic view of the electromagnetic brake and the brake gear in the present application;

[0038] Figure 7 is a size schematic view of the present application when moving at different positions of the conical lamp rod;

[0039] Figure 8 is a connection schematic view of the pulse circuit in the present application;

[0040] Figure 9 is a flow chart of the use method of the present application.

[0041] 1, conical lamp pole; 101, anti-collision rail; 2, lamp panel; 3, braking unit; 301, guide rack; 3011, meshing tooth; 3012, T-shaped guide rail; 302, electromagnetic brake; 3021, brake disc; 3022, brake caliper; 303, speed measurement module; 304, power module; 4, guide wheel; 401, U-shaped wheel frame; 5, rack sliding sleeve; 501, connecting frame; 502, sliding groove; 6, brake gear; 601, rotating shaft; 602, bearing seat; 7, compression spring; 701, connecting column. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application.

[0043] Hereinafter, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second", and the like can explicitly or implicitly include one or more features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0044] In addition, in the present application, the orientation terms such as "upper", "lower", "left", "right" and the like can include but not limited to the orientation defined by the relative position of the components in the drawing. It should be understood that these directional terms can be relative concepts, which are used for relative description and clarification, and can be changed accordingly according to the change of the position of the components in the drawing.

[0045] In the present application, unless otherwise specified and limited, the term "connection" should be understood broadly, for example, "connection" can be fixed connection, or detachable connection, or integral; can be directly connected, or indirectly connected through intermediate medium. In addition, the term "coupling" can be an electrically connected manner for signal transmission.

[0046] As shown in Figure 1 and Figure 2 The present application provides a high-pole lamp anti-falling braking device, which comprises a lamp panel 2 sleeved on the outer side of a conical lamp pole 1 and a plurality of sets of braking units 3 fixed on the lamp panel 2 in the circumferential direction, as shown in Figures 3-5As shown, the brake unit 3 comprises a guide rack 301 arranged on the lamp disc 2 along the radial direction of the lamp disc 2 and moving along the direction approaching / away from the conical lamp rod 1, a guide wheel 4 provided at the end of the guide rack 301 and rolling in contact with the outer wall of the conical lamp rod 1, an electromagnetic brake 302, a speed detection module 303, an electromagnetic control module (not shown) and a power module 304. The brake jaw 3022 of the electromagnetic brake 302 is fixedly arranged relative to the lamp disc 2, and the brake disc 3021 of the electromagnetic brake 302 is rotatably arranged relative to the lamp disc 2. Specifically, the housing of the brake jaw 3022 is fixed to the lamp disc 2 below through a housing support, and the central part of the brake disc 3021 is fixedly connected with a rotating shaft 601 which rotates together with the brake disc 3021, and the upper end of the rotating shaft 601 is installed on the lamp disc 2 through a bearing seat 602. After the lamp disc 2 is installed and no abnormality occurs, it is not necessary to be removed by lowering. In order to save the power requirement of the electromagnetic brake 302, the electromagnetic brake 302 is selected as an electromagnetic power-off brake. That is, after the magnetic coil is powered on, the brake jaw 3022 of the electromagnetic brake 302 is separated from the brake disc 3021, and the brake disc 3021 can rotate freely. After the magnetic coil is powered off, the brake jaw 3022 is closed to the brake disc 3021, and the brake disc 3021 is in a locked state. The electromagnetic power-off brake is a prior art, and its structure is not described herein. The brake disc 3021 of the electromagnetic brake 302 is fixedly connected with a brake gear 6 which is in meshing transmission with the guide rack 301.

[0047] The speed detection module 303 is used for detecting the rotating speed of the brake disc 3021 which rotates under the driving action of the guide rack 301. Specifically, the speed detection module 303 is a rotating speed sensor which is fixedly arranged on the lamp disc 2, and the detection head of the rotating speed sensor is arranged opposite to the brake disc 3021. The rotating speed sensor is provided with a brake threshold value. When the rotating speed of the brake disc 3021 detected by the rotating speed sensor reaches the brake threshold value, a brake signal is sent to the electromagnetic control module. In other embodiments, the speed detection module 303 can also be selected as an encoder which is fixedly arranged on the lamp disc 2, and the transmission shaft of the encoder is arranged in working connection with the rotating shaft 601 of the brake disc 3021. The encoder can detect the rotating speed and the rotating direction of the brake disc 3021 through a voltage signal. When the rotating speed of the brake disc 3021 detected by the encoder reaches the brake threshold value, and the rotating direction of the brake disc 3021 is the same as the direction in which the guide rack 301 moves away from the conical lamp rod 1, a brake signal is sent to the electromagnetic control module, so that the misoperation of the electromagnetic brake 302 can be avoided when the lamp disc 2 is lifted by the lifting device.

[0048] As Figure 7As shown, r is the radius of the brake gear 6 (mm), R is the radius of the brake disc 3021 (mm), d is the upper diameter of the tapered lamp pole 1 (mm), D is the lower diameter of the tapered lamp pole 1 (mm), H is the height of the tapered lamp pole 1 (mm), a is the angle between the outer wall of the tapered lamp pole 1 and the horizontal plane (°), ω is the angular velocity of the brake disc 3021 and the brake gear 6 (m / s), and V is the maximum allowed falling speed of the lifting disc G (m / s). As shown, R (m / s) is the horizontal moving speed of the rack and the linear speed of the gear (m / s), and V G (m / s) is the brake threshold of the brake disc 3021; as shown, Figure 7 , and ; it is obtained that ; and since and , the calculation formula of the brake threshold is finally obtained as ; in the embodiment, the value of V G is 0.1 m / s, which can also be set according to the falling speed of the lifting device.

[0049] The power module 304 is used to power the electromagnetic control module, preferably, a battery pack can be selected, and in order to ensure the endurance, a photovoltaic power generation or wind power generation device can also be installed on the lamp disc 2 according to the need; the electromagnetic control module is used to receive the brake signal from the speed measurement module 303 and control the on-off state of the magnetic coil in the electromagnetic brake 302; after the lamp disc 2 accidentally falls, the guide wheel 4 moves downward along the outer wall of the tapered pole body and drives the guide rack 301 to move away from the tapered lamp pole 1, at this time, the brake gear 6 drives the brake disc 3021 to rotate under the meshing transmission action of the guide rack 301, and the electromagnetic control module controls the electromagnetic brake 302 to brake after receiving the speed signal detected by the speed measurement module 303, which has a faster response time, a shorter brake distance and a smaller impact force of the brake stroke compared with the pure mechanical brake of the prior art.

[0050] In order to ensure that the lamp disc 2 can fall uniformly after braking until it reaches the ground, the electromagnetic control module includes a pulse circuit electrically connected with the electromagnetic brake 302, which is used to send a pulse signal to the electromagnetic brake 302, as shown in Figure 8As shown, the electromagnetic control module will produce a RW voltage change amount after receiving the brake signal sent by the speed measurement module 303, the triangular wave generating circuit uses the positive feedback principle of the first operational amplifier to generate a Z point waveform, the RW voltage change amount and the Z point waveform are sent to the pulse width modulation circuit at the same time and modulate the width of the pulse to output an F point waveform, the F point waveform is sent to the driving circuit and outputs a g point waveform under the action of the driving circuit, under the action of the g point waveform, the power supply module outputs different power of direct current to the magnetic coil of the electromagnetic brake 302 through the switching tube, so that the friction between the brake caliper 3022 and the brake disc 3021 and the thrust of the lamp disc 2 gravity reaction on the guide rack 301 are balanced, and then the lamp disc 2 descends at a constant speed.

[0051] In order to realize remote control of the lamp disc 2 during the lifting process and after the installation is completed, the anti-falling brake device further comprises a wireless remote control switch, which is wirelessly connected with the electromagnetic control module and is used to send a control signal to the electromagnetic control module. Specifically, the power-on, power-off and pulse mode of the electromagnetic brake 302 can be remotely controlled.

[0052] The outer side of the guide rack 301 is provided with a sliding assembly and an elastic member, the guide rack 301 is slidingly connected with the lamp disc 2 through the sliding assembly, and the guide rack 301 is driven to move away from the tapered lamp pole 1 under the action of external force, the guide rack 301 is connected with the sliding assembly through the elastic member, and is reversely reset under the action of the elastic force of the elastic member; in this embodiment, the sliding assembly comprises a rack sliding sleeve 5, the gear sliding sleeve is fixed on the lamp disc 2 through the connecting frame 501, the guide rack 301 is arranged in the rack sliding sleeve 5, the side of the guide rack 301 away from the meshing teeth 3011 is provided with a guide rail part along the length direction, and the rack sliding sleeve 5 is provided with a sliding groove 502 matched with the guide rail part; the elastic member is a compression spring 7, the compression spring 7 is located between the guide rack 301 and the rack sliding sleeve 5, and the two ends of the compression spring 7 are connected with the end of the guide rack 301 away from the guide wheel 4 and the end of the rack sliding sleeve 5 close to the guide wheel respectively, preferably, connecting columns 701 are welded at the corresponding positions of the guide rack 301 and the rack sliding sleeve 5, and connecting holes for hanging the ends of the compression spring 7 are formed in the connecting columns 701. Since the lamp pole is a tapered lamp pole 1 which is narrow at the top and wide at the bottom, when the lamp disc 2 is at the initial position of rising, the guide rack 301 moves to the outermost side under the extrusion force of the outer wall of the lamp pole, at this time, the compression spring 7 is in a compressed state, with the rising of the lamp disc 2, the compression spring 7 is reset, and then the guide rack moves along the direction close to the tapered lamp pole 1, conversely, with the descending of the lamp disc 2, the guide rack moves along the direction away from the tapered lamp pole 1, and the compression spring 7 is compressed, in the whole movement process, the guide wheel 4 can always rollingly contact with the tapered lamp pole 1.

[0053] In order to ensure the stability of the sliding of the guide rack 301 in the rack sleeve 5, the rack sleeve 5 is two, which are located on both sides of the brake gear 6; further, the guide rail part is two T-shaped guide rails 3012 which are fixed side by side on the outside of the guide rack 301, and the compression spring 7 is located between the two T-shaped guide rails 3012.

[0054] Further preferably, in order to avoid the interference of the guide wheel 4 with the crash barrier 101 during the rolling outside the lamp pole, the brake unit 3 is two groups which are symmetrically arranged at the two sides of the conical lamp body, and in order to ensure the stability during the descending of the lamp disc 2, the guide wheel 4 on each group of brake units 3 is two, which are arranged along the circumferential direction of the conical lamp pole 1, specifically, the two guide wheels 4 are rotatably installed at the open end of the U-shaped wheel frame 401, and the closed end of the U-shaped wheel frame 401 is welded and fixed with the end of the guide rack 301.

[0055] The above anti-falling brake device is used together with the lifting device for the installation of the high-pole lamp, as shown in Figure 9 The specific use method is as follows:

[0056] S1, install the high-pole lamp, use the lifting device to lift the lamp disc 2, at this time the electromagnetic control module controls the electromagnetic brake 302 to electrify the magnetic coil, the brake jaw 3022 of the electromagnetic brake 302 is separated from the brake disc 3021, and the guide wheel 4 keeps rolling contact with the outer wall of the conical lamp pole 1 while moving along the approaching direction of the conical lamp pole 1;

[0057] S2, the lifting device normally operates until the lamp disc 2 is lifted to the specified height, the electromagnetic control module controls the electromagnetic brake 302 to de-energize the magnetic coil, the brake jaw 3022 of the electromagnetic brake 302 is in closed contact with the brake disc 3021, and the guide rack 301 is in a locked state, at this time the lamp disc 2 is stably hung at the top of the lamp pole, and due to the braking effect of the electromagnetic brake 302, the load of the steel wire rope during the long-term use of the high-pole lamp can be reduced;

[0058] S3, when the lamp disc 2 of S1 is in the lifting process, the steel wire rope connected with the lamp disc 2 is broken, the lamp disc 2 loses weight and falls, the guide rack 301 moves outward at a higher speed along the downward direction while the guide wheel 4 moves, drives the brake gear 6 and the brake disc 3021 to rotate, the rotation speed sensor detects that the rotation speed of the brake disc 3021 reaches the braking threshold, sends a braking signal to the electromagnetic control module, the electromagnetic control module controls the electromagnetic brake 302 through the pulse circuit, the brake disc 3021 rotates at a speed lower than the braking threshold and drives the lamp disc 2 to descend at a constant speed;

[0059] S4, the lamp panel 2 of S2 is operated to descend, the electromagnetic control module is controlled by using the wireless remote control switch to electrify the magnetic coil in the electromagnetic brake 302, the brake jaw 3022 of the electromagnetic brake 302 is separated from the brake disc 3021, the guide wheel 4 is always in rolling contact with the outer wall of the tapered lamp rod 1 along with the movement of the guide rack 301 in the direction away from the tapered lamp rod 1;

[0060] S5, when the lamp panel 2 of S4 is in the descending process, the steel wire rope for connecting the lamp panel 2 is broken, the lamp panel 2 falls due to the loss of weight, the guide rack 301 accelerates to move outward, drives the brake gear 6 and the brake disc 3021 to rotate at high speed, the rotation speed sensor detects that the rotation speed of the brake disc 3021 reaches the brake threshold, sends a brake signal to the electromagnetic control module, the electromagnetic control module controls the electromagnetic brake 302 through the pulse circuit, the brake disc 3021 rotates at a speed lower than the brake threshold and drives the lamp panel 2 to descend at a constant speed;

[0061] S6, during the constant-speed descending process of the lamp panel 2 in S3 and S5, the lamp panel 2 needs to be stopped urgently, the electromagnetic control module is controlled by using the wireless remote control switch to de-energize the magnetic coil in the electromagnetic brake 302, the brake jaw 3022 of the electromagnetic brake 302 is in closed contact with the brake disc 3021, and the guide rack 301 is in a locked state;

[0062] S7, the lamp panel 2 in the emergency stop state in S6 is restored to descend, the electromagnetic control module is controlled by using the wireless remote control switch to send a pulse signal to the electromagnetic brake 302, the brake disc is restored to rotate and drives the lamp panel 2 to descend at a constant speed.

[0063] The specific examples in the embodiment can refer to the examples described in the above-described embodiments and exemplary embodiments, and the embodiment will not be described here again.

[0064] Obviously, those skilled in the art should understand that the modules or steps of the present application described above can be realized by general computing devices, which can be concentrated on a single computing device or distributed on a network composed of multiple computing devices, which can be realized by program codes executable by the computing devices, so that they can be stored in storage devices and executed by the computing devices, and in some cases, the steps shown or described can be executed in different order, or they can be manufactured into individual integrated circuit modules, or multiple modules or steps among them can be manufactured into a single integrated circuit module. Thus, the present application is not limited to any specific hardware and software combination.

[0065] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. within the principles of the present application shall be included in the protection scope of the present application.

Claims

1. A high-pole lamp anti-falling brake device, comprising a lamp disc sleeved outside a conical lamp pole and a plurality of sets of brake units fixed on the lamp disc in a circumferential direction, characterized in that, The brake unit comprises a guide rack, an electromagnetic brake, a speed measurement module, an electromagnetic control module and a power module. The guide rack is arranged on the lamp disc in the radial direction of the lamp disc and moves in the direction of approaching or moving away from the conical lamp rod. The end of the guide rack is provided with a guide wheel in rolling contact with the outer wall of the conical lamp rod. The brake jaw of the electromagnetic brake is fixedly arranged relative to the lamp disc. The brake disc of the electromagnetic brake is rotatably arranged relative to the lamp disc. The brake disc of the electromagnetic brake is fixedly provided with a brake gear in meshing transmission with the guide rack. The speed measurement module is used to detect the rotating speed of the brake disc rotating under the driving action of the guide rack. The power module is used to supply power to the electromagnetic control module. The electromagnetic control module is used to receive the brake signal from the speed measurement module and control the on-off state of the magnetic coil in the electromagnetic brake. The speed measurement module is a rotating speed sensor. The rotating speed sensor is provided with a brake threshold value. When the rotating speed sensor detects that the rotating speed of the brake disc reaches the brake threshold value, the brake signal is sent to the electromagnetic control module. The calculation formula of the brake threshold value is as follows: In the formula, VR is the brake threshold value, m / s; VG is the maximum allowable falling speed of the lamp disc, m / s; R is the radius of the brake disc, mm; r is the radius of the brake gear, mm; D is the lower diameter of the conical lamp rod, mm; d is the upper diameter of the conical lamp rod, mm; and H is the height of the conical lamp rod, mm. The electromagnetic control module comprises a pulse circuit electrically connected with the electromagnetic brake, which is used to send a pulse signal to the electromagnetic brake. A wireless remote control switch is connected with the electromagnetic control module wirelessly and is used to send a control signal to the electromagnetic control module. The brake unit is two groups and is centrally symmetrically arranged on both sides of the conical lamp body. The guide wheels on each group of brake units are two. The two guide wheels are arranged in the circumferential direction of the conical lamp rod. The outer side of the guide rack is provided with a sliding assembly and an elastic member. The guide rack is slidingly connected with the lamp disc through the sliding assembly. The guide rack is driven to move away from the conical lamp rod under the action of an external force. The guide rack is connected with the sliding assembly through the elastic member. The guide rack is reversely reset under the action of the elastic force of the elastic member. The sliding assembly comprises a rack sleeve fixed on the lamp disc. The guide rack is arranged in the rack sleeve. The side of the guide rack away from the meshing teeth is provided with a guide rail part in the length direction. The rack sleeve is provided with a sliding groove matched with the guide rail part. The elastic member is a compression spring. The compression spring is located between the guide rack and the rack sleeve. The two ends of the compression spring are connected with the end of the guide rack away from the guide wheel and the end of the rack sleeve close to the guide wheel, respectively.

2. A high-pole lamp fall arrest device according to claim 1, characterized in that The guide rail part is two T-shaped guide rails fixed side by side on the outer side of the guide rack. The compression spring is located between the two T-shaped guide rails.

3. A high-pole lamp fall arrest device according to claim 2, characterized in that The method comprises the following steps:

4. A high-pole lamp fall arrest device according to claim 3, characterized in that S1, installing the high-pole lamp, lifting the lamp disc by using a lifting device, controlling the electromagnetic control module to control the electromagnetic brake to be electrified, separating the brake jaw of the electromagnetic brake from the brake disc, and keeping the guide wheel in rolling contact with the outer wall of the conical lamp rod by moving the guide wheel along the guide rack in the direction of approaching the conical lamp rod.

5. A high-pole lamp fall arrest device according to claim 3, characterized in that ​ 6. A high-pole lamp fall arrest device according to claim 5, characterized in that ​ 7. A high-pole lamp fall arrestor according to claim 6, characterized in that ​ 8. A high-pole lamp fall arrestor according to claim 7, characterized in that ​ 9. A method of using a high-pole lamp fall arrest device, using the high-pole lamp fall arrest device according to claim 1, characterized by, ​ ​ S2, the lifting device is in normal operation until the light panel rises to the specified height, the electromagnetic control module controls the electromagnetic brake to be powered off, the brake caliper of the electromagnetic brake is in closed contact with the brake disc, and the guide rack is in a locked state; S3, when the light panel of S1 is in the process of rising, the steel wire rope for connecting the light panel is broken, the light panel falls due to weight loss, the guide rack moves outward along the inclined downward direction with the guide wheel to accelerate, drives the brake gear and brake disc to rotate, the rotation speed sensor detects that the rotation speed of the brake disc reaches the brake threshold, sends a brake signal to the electromagnetic control module, the electromagnetic control module controls the electromagnetic brake through the pulse circuit, the brake disc rotates at a speed lower than the brake threshold and drives the light panel to descend at a constant speed; S4, the light panel of S2 is operated to descend, the wireless remote control switch is used to control the electromagnetic control module to power on the magnetic coil in the electromagnetic brake, the brake caliper of the electromagnetic brake is separated from the brake disc, the guide wheel is always in rolling contact with the outer wall of the conical lamp pole along with the movement of the guide rack away from the conical lamp pole; S5, when the light panel of S4 is in the process of descending, the steel wire rope for connecting the light panel is broken, the light panel falls due to weight loss, the guide rack moves outward to drive the brake gear and brake disc to rotate at a high speed, the rotation speed sensor detects that the rotation speed of the brake disc reaches the brake threshold, sends a brake signal to the electromagnetic control module, the electromagnetic control module controls the electromagnetic brake through the pulse circuit, the brake disc rotates at a speed lower than the brake threshold and drives the light panel to descend at a constant speed; S6, in the process of uniform speed descending of the light panel of S3 and S5, the light panel needs to be stopped urgently, the wireless remote control switch is used to control the electromagnetic control module to power off the magnetic coil in the electromagnetic brake, the brake caliper of the electromagnetic brake is in closed contact with the brake disc, and the guide rack is in a locked state; S7, the light panel in the emergency stop state of S6 is restored to descend, the wireless remote control switch is used to control the electromagnetic control module to send a pulse signal to the electromagnetic brake, the brake disc is restored to rotate and drives the light panel to descend at a constant speed.

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