Intelligent maintenance warning device

Abstract

The utility model discloses an intelligent overhaul warning device, and electric power screen cabinet has operating state and overhaul state, and the intelligent overhaul warning device includes: identification turnover mechanism and projection lamp, identification turnover mechanism includes rotation part, lock part and identification board, and identification board turns over along rotation part to switch display warning mark, and lock part locks rotation part when identification board turns over to the in -place, and projection lamp projects the same warning mark to the ground before screen cabinet simultaneously, under operating state, warning mark is operating mark, and identification board turns over downward along rotation part to be operating mark to stop the door of electric power screen cabinet to open outward to the limit position, under overhaul state, warning mark is overhaul mark, and identification board turns over upward along rotation part to be overhaul mark to cancel the door stop limit position of electric power screen cabinet. The utility model technical scheme is favorable to the state information of screen cabinet in time display, avoids the door to open under operating state, is favorable to improving the overhaul efficiency and security, and avoids the occurrence of electric power accident.

Description

Technical Field

[0001] This utility model relates to the field of power equipment technology, and in particular to an intelligent maintenance warning device. Background Technology

[0002] In the power industry, signage is typically used during maintenance to indicate the operating status of electrical equipment and prevent misoperation. Currently, signage is mainly hung manually, which is labor-intensive and may result in outdated information. Furthermore, during the operation of power control cabinets, there is a risk of operation before the cabinet doors are properly closed, potentially leading to serious electrical accidents. Utility Model Content

[0003] This utility model provides an intelligent maintenance warning device that can promptly display the status information of the display cabinet, prevent the cabinet door from being opened while it is in operation, improve maintenance efficiency and safety, and prevent power accidents.

[0004] This utility model embodiment provides an intelligent maintenance warning device, which is installed at the top of a power distribution cabinet. The power distribution cabinet has operating and maintenance states. The intelligent maintenance warning device includes a housing, a label flipping mechanism, and a projection lamp. The label flipping mechanism includes a rotating part, a locking part, and a label. The projection lamp is embedded in the housing. The label flips along the rotating part to switch the displayed warning label. The locking part locks the rotating part when the label is flipped to the correct position. At the same time, the projection lamp projects the same warning label onto the ground in front of the power distribution cabinet. The warning labels include operating and maintenance labels. In the operating state, the warning label is the operating label, and the label flips downward along the rotating part to stop the power distribution cabinet door from opening outward. In the maintenance state, the warning label is the maintenance label, and the label flips upward along the rotating part to release the stop on the power distribution cabinet door.

[0005] This utility model's technical solution incorporates a sign-flipping mechanism and a projection light. The sign-flipping mechanism rotates the signboard via a rotating part to display both operation and maintenance signs, facilitating timely display of the cabinet's status information. The projection light projects the same warning sign as the signboard onto the ground in front of the cabinet, eliminating the need for manual sign placement and further enhancing the timely display of cabinet status information. The sign-flipping mechanism and the projection light guide maintenance personnel to quickly locate the object to be repaired and reach the repair area, preventing them from going to the wrong section and saving search time. In operation mode, the signboard flips downwards along the rotating part to display the operation sign, preventing the cabinet door from opening outwards. In maintenance mode, the signboard flips upwards along the rotating part to display the maintenance sign, releasing the door's obstruction. This effectively prevents the cabinet door from opening during operation, improving maintenance efficiency and safety, and preventing power accidents.

[0006] According to the aforementioned embodiments of this utility model, the sign-flipping mechanism includes a driving unit, and a rotating unit is connected to the rotation output shaft of the driving unit. The driving unit can drive the rotating unit to rotate, thereby causing the sign to flip along the rotating unit. This utility model's technical solution uses the driving unit to drive the rotating unit to rotate, which in turn drives the sign to rotate, displaying operation and maintenance signs respectively. This facilitates timely display of the display cabinet's status information, allows for remote real-time control of the sign-flipping mechanism's display content, eliminates the need for manual sign hanging, and provides a clear and direct indication of the display cabinet's working status.

[0007] According to the aforementioned embodiments of this utility model, the sign flipping mechanism further includes a connecting part, one end of which is connected to the sign and the other end of which is connected to the rotating part. The locking part includes a first locking shaft and a second locking shaft disposed on both side walls of the housing. A locking hole is provided in the middle of the connecting part to cooperate with the first or second locking shaft. The first and second locking shafts can respectively cooperate with the locking hole to restrict the rotation of the connecting part. This utility model's technical solution, by providing a locking hole on the connecting part to cooperate with the first or second locking shaft, allows the locking part to restrict the rotation of the connecting part when the sign is flipped into position, thus locking the connecting part. This helps to lock the position of the sign and prevent the sign from flipping and displaying incorrect signs.

[0008] According to the aforementioned embodiments of this utility model, the locking part further includes a limiting structure, which includes a first sensor and a second sensor. When the signboard flips to display a running indicator, the connecting part triggers the first sensor, the driving part stops driving the rotating part to rotate, and the first locking shaft locks the locking hole. When the signboard flips to display a maintenance indicator, the connecting part triggers the second sensor, the driving part stops driving the rotating part to rotate, and the second locking shaft locks the locking hole. This utility model's technical solution, by setting a limiting structure, facilitates limiting the signboard after it flips to display a running or maintenance indicator, preventing the signboard from flipping and displaying an incorrect indicator.

[0009] According to the aforementioned embodiments of this utility model, the housing is provided with unlocking slots corresponding to the first locking shaft and the second locking shaft, respectively. The intelligent maintenance warning device has an emergency unlocking state. In the emergency unlocking state, the unlocking slots can drive the first locking shaft and the second locking shaft to move and urgently unlock the connecting part. This utility model's technical solution, by providing unlocking slots, facilitates unlocking the connecting part in an emergency unlocking state, thereby moving the sign to lock or unlock the cabinet door.

[0010] According to the aforementioned embodiments of this utility model, the projection lamp includes a running lamp and a maintenance lamp arranged side-by-side in the middle area of ​​the bottom of the housing. The optical axes of the running lamp and the maintenance lamp are tilted downwards so that the projected warning signs can cover the ground in front of the cabinet. In operation mode, the running lamp projects operation signs onto the ground in front of the cabinet; in maintenance mode, the maintenance lamp projects maintenance signs onto the ground in front of the cabinet. This utility model's technical solution, through the light guidance of the running lamp and the maintenance lamp, facilitates maintenance personnel in quickly locating the object to be maintained and reaching the maintenance area, preventing them from going to the wrong section and saving search time.

[0011] According to the aforementioned embodiments of this utility model, the intelligent maintenance warning device further includes a door status detection component. The door status detection component is disposed on the bottom surface of the housing and includes at least two distance sensors arranged sequentially along the door opening / closing direction. The door opening / closing status is determined by the order in which the door sequentially blocks the distance sensors and the difference in the blocking distance. This utility model's technical solution, by setting a door status detection component to detect the door opening / closing status of the cabinet, helps prevent the cabinet door from opening while the cabinet is in operation, thus improving the safety and efficiency of power maintenance.

[0012] According to the aforementioned embodiments of this utility model, the back of the housing is provided with a bracket extending laterally along the top of the power distribution cabinet; or, the back of the housing is provided with a magnetic attraction extending laterally along the top of the power distribution cabinet.

[0013] According to the aforementioned embodiments of this utility model, the intelligent maintenance warning device also includes a control unit. The control unit is communicatively connected to the maintenance prevention system of the power distribution cabinet to control the synchronous switching of the working states of the sign flipping mechanism, the locking part, and the projection lamp. This utility model's technical solution, through the communication association between the control unit and the maintenance prevention system of the power distribution cabinet, facilitates the electronic deployment of safety measures. The display content of the sign flipping mechanism and the projection content of the projection lamp can both be controlled through the maintenance prevention system, forcibly associated with the task, preventing incorrect or missed labeling during manual labeling.

[0014] According to the foregoing embodiments of this utility model, the intelligent maintenance warning device also includes a power supply unit. The power supply unit is electrically connected to the sign flipping mechanism, the projection lamp, the door status detection component, and the control unit.

[0015] This utility model's technical solution, by incorporating a sign-flipping mechanism, a projection lamp, a door status detection component, a locking mechanism, and a control unit, and communicating with the cabinet's maintenance error prevention system, facilitates remote real-time control and electronic deployment of safety measures. It also provides clear and direct indication of the cabinet's operating status. The sign-flipping mechanism and projection lamp guide maintenance personnel quickly locate the object to be inspected and reach the designated area, preventing them from going to the wrong section and saving search time. The sign-flipping mechanism can also lock the cabinet door while the cabinet is in operation. Combined with the door status detection component, it detects the door's open / closed status, preventing the door from opening while the cabinet is running. This anti-misoperation locking function further prevents maintenance personnel from going to the wrong section, improving the safety and efficiency of power maintenance. This utility model's technical solution can deploy multiple cabinets simultaneously, providing omnidirectional guidance from top to bottom. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the intelligent maintenance warning device of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of an embodiment of the intelligent maintenance warning device of this utility model;

[0019] Figure 3 This is a schematic diagram illustrating an embodiment of the intelligent maintenance warning device of this utility model, showing the sign flipped to display an operation indicator;

[0020] Figure 4 This is a schematic diagram illustrating an embodiment of the intelligent maintenance warning device of this utility model, showing a sign flipped to display a maintenance sign.

[0021] Figure 5 This is a schematic diagram of the operation indicator of an embodiment of the intelligent maintenance warning device of this utility model;

[0022] Figure 6 This is a schematic diagram of a maintenance sign according to an embodiment of the intelligent maintenance warning device of this utility model;

[0023] Figure 7 This is a schematic diagram illustrating the operating status of a display cabinet in an embodiment of the intelligent maintenance warning device of this utility model;

[0024] Figure 8This is a schematic diagram illustrating the maintenance status of a display cabinet in an embodiment of the intelligent maintenance warning device of this utility model.

[0025] Explanation of icon numbers:

[0026] Intelligent maintenance warning device-100, power supply cabinet-200;

[0027] Housing-110, label flipping mechanism-120, projection lamp-130, door status detection component-140, control unit-150, power supply unit-160, locking part-170, maintenance prevention system-210, cabinet door-220;

[0028] Unlocking slot-111, avoidance channel-112, number pasting area-113, rotating part-121, connecting part-122, identification plate-123, driving part-124, running light-131, inspection light-132, first ranging sensor-141, second ranging sensor-142, first locking shaft-171, second locking shaft-172, limit structure-173, paddle-174;

[0029] Fitting hole-1211, locking hole-1221, first display surface-1231, second display surface-1232, first sensor-1731, second sensor-1732.

[0030] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0033] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0034] This utility model provides an intelligent maintenance warning device that can promptly display the status information of the display cabinet, prevent the cabinet door from being opened while it is in operation, improve maintenance efficiency and safety, and prevent power accidents.

[0035] like Figure 1 As shown, this utility model embodiment provides an intelligent maintenance warning device 100, which is installed at the top of the power cabinet 200. The power cabinet has an operating state and a maintenance state.

[0036] like Figures 3 to 4 As shown, the intelligent maintenance warning device 100 includes: a housing 110, a label flipping mechanism 120, and a projection lamp 130. The label flipping mechanism 120 is disposed within the housing 110 and includes a rotating part 121, a locking part 170, and a label 123. The projection lamp 130 is embedded in the housing 110. The label 123 flips along the rotating part 121 to switch the displayed warning label. The locking part 170 locks the rotating part 121 when the label 123 is flipped to its final position. Simultaneously, the projection lamp 130 projects the same warning label onto the ground in front of the cabinet 200. The warning labels include operating and maintenance labels. The label 123 includes a first display surface 1231 and a second display surface 1232 to display the operating and maintenance labels respectively. In operation, the warning sign is an operation sign, and the sign 123 flips downward along the rotating part 121 to become an operation sign, thereby stopping the cabinet door 220 of the power cabinet 200 from opening outward; in maintenance, the warning sign is a maintenance sign, and the sign 123 flips upward along the rotating part 121 to become a maintenance sign, thereby releasing the stop limit on the cabinet door 220 of the power cabinet 200.

[0037] This utility model's technical solution incorporates a sign-flipping mechanism 120 and a projection lamp 130. The sign-flipping mechanism 120, through a rotating part 121, drives the sign 123 to rotate, displaying operation and maintenance signs respectively. This facilitates timely display of the status information of the display cabinet 200. The projection lamp 130 projects warning signs identical to the sign 123 onto the ground in front of the display cabinet 200, eliminating the need for manual sign hanging and further facilitating timely display of the display cabinet 200's status information. Through the display of the sign-flipping mechanism 120 and the light guidance of the projection lamp 130, maintenance personnel can quickly locate the object to be maintained and reach the maintenance area, preventing them from going to the wrong section and saving search time. In operation, the sign 123 flips downward along the rotating part 121 to become an operation sign, thereby preventing the cabinet door 220 of the power cabinet 200 from opening outward. In maintenance, the sign 123 flips upward along the rotating part 121 to become a maintenance sign, thereby releasing the stop limit on the cabinet door 220 of the power cabinet 200. This helps to prevent the cabinet door 220 from opening in operation, which is beneficial to improving maintenance efficiency and safety, and preventing the occurrence of power accidents.

[0038] In this application, the back of the housing 100 extends laterally along the top edge of the power distribution cabinet 200 via a bracket, or the back of the housing 100 extends laterally along the top edge of the power distribution cabinet 200 via magnetic attraction. The bottom surface of the housing 100 is flush with the top surface of the cabinet door 220 of the power distribution cabinet 200. The housing 110 is used to fix and protect internal components. Preferably, the housing 110 is made of waterproof and dustproof material, which can adapt to complex power maintenance environments. Figure 1 As shown, the housing 110 also includes a numbering sticker 113 for pasting the cabinet number, which facilitates rapid deployment.

[0039] like Figures 3 to 4 As shown, the label flipping mechanism 120 includes a drive unit 124. (As indicated...) Figures 5 to 6 As shown, the rotating part 121 has a mating hole 1211, which can be connected to the rotation output shaft of the driving part 124. The driving part 124 can drive the rotating part 121 to rotate, thereby enabling the sign 123 to rotate along the axis of the rotating part 121. This utility model's technical solution uses the driving part 124 to drive the rotating part 121 to rotate, which in turn drives the sign 123 to rotate, displaying operation and maintenance signs respectively. This facilitates timely display of the status information of the display cabinet 200, allows for remote real-time control of the sign flipping mechanism 120's display content, eliminates the need for manual sign hanging, and provides a clear and direct indication of the display cabinet 200's working status.

[0040] like Figures 3 to 4As shown, the sign flipping mechanism 120 also includes a connecting part 122, one end of which is connected to the sign plate 123, and the other end is connected to the rotating part 121. The locking part 170 includes a first locking shaft 171 and a second locking shaft 172 disposed on both side walls of the housing 100, as shown... Figure 5 As shown, the connecting part 122 has a locking hole 1221 in the middle that cooperates with the first locking shaft 171 or the second locking shaft 172. The first locking shaft 171 and the second locking shaft 172 can be connected to the locking hole 1221 respectively to restrict the rotation of the connecting part 122. By setting the first locking shaft 171 and the second locking shaft 172, and providing the locking hole 1221 on the connecting part 122 that cooperates with the first locking shaft 171 or the second locking shaft 172, the locking part 170 can restrict the rotation of the connecting part 122 when the sign 123 is flipped into place, thereby locking the connecting part 122. This is beneficial for locking the position of the sign 123 and preventing the sign 123 from flipping over and displaying an incorrect sign. Furthermore, the sign 123 can lock the cabinet door 220 of the cabinet 200 when displaying the operation sign, and can unlock the cabinet door 220 of the cabinet 200 when displaying the maintenance sign. The sign 123 can switch between displaying the operation sign and the maintenance sign to lock or unlock the cabinet door 220.

[0041] like Figures 3 to 4 As shown, the locking part 170 also includes a limiting structure 173, which includes a first sensor 1731 and a second sensor 1732. When the sign 123 is flipped to display a running indicator, the connecting part 122 triggers the first sensor 1731, the driving part 124 stops driving the rotating part 121 to rotate, and the first locking shaft 171 locks the locking hole 1221. When the sign 123 is flipped to display a maintenance indicator, the connecting part 122 triggers the second sensor 1732, the driving part 124 stops driving the rotating part 121 to rotate, and the second locking shaft 172 locks the locking hole 1221. This utility model's technical solution, by setting the limiting structure 173, facilitates limiting the sign 123 after it is flipped to display a running or maintenance indicator, preventing the sign 123 from flipping and displaying an incorrect indicator.

[0042] Specifically, the first sensor 1731 and the second sensor 1732 are microswitches. After the connecting part 122 triggers the microswitches at two different positions, the microswitches can send corresponding position signals to the control unit 150. The control unit 150 can stop driving the drive part 124 to rotate, thereby stopping the connecting part 122 from rotating and limiting the position of the sign 123 so that it can display the operation sign or maintenance sign.

[0043] Specifically, the first locking shaft 171 and the second locking shaft 172 are solenoids. After the limiting structure 173 sends a corresponding positioning signal to the control unit 150, the solenoid is energized, the solenoid spindle extends out, and engages with the locking hole 1221 to restrict the rotation of the connecting part 122.

[0044] Preferably, in this embodiment, both the first locking shaft 171 and the second locking shaft 172 can maintain a power-off self-locking state. The locking structure 1242 in this utility model is a bistable structure, which can maintain a locked state after power is applied or de-energized, without the need for continuous power supply. This is beneficial to improving the safety and reliability of power maintenance and meets the requirements of energy conservation and environmental protection.

[0045] like Figure 1 As shown, the housing 110 is provided with unlocking slots 111 corresponding to the first locking shaft 171 and the second locking shaft 172, respectively. The intelligent maintenance warning device 100 has an emergency unlocking state. In the emergency unlocking state, the unlocking slots 111 can drive the paddles 174 of the first locking shaft 171 and the second locking shaft 172 to move and urgently unlock the connecting part 122. The first locking shaft 171 and the second locking shaft 172 can upload the emergency unlocking information to the control unit 150. The present invention, by setting the unlocking slots 111, facilitates the unlocking of the connecting part 122 in the emergency unlocking state, thereby driving the sign 123 to move, so as to lock or unlock the cabinet door 220.

[0046] like Figure 1 As shown, the projection lamp 130 includes a running lamp 131 and a maintenance lamp 132 arranged side-by-side in the middle area of ​​the bottom of the housing 110. The optical axes of the running lamp 131 and the maintenance lamp 132 are tilted downwards so that the projected warning signs can cover the ground in front of the cabinet 200. Figures 7 to 8 As shown, in the operating state, the operating light 131 can project an operating sign onto the ground in front of the cabinet 200, and in the maintenance state, the maintenance light 132 can project a maintenance sign onto the ground in front of the cabinet 200.

[0047] Specifically, in this embodiment, the projection light 130 is task-associated with the maintenance error prevention system 210. For example, in the running state, the operation light 131 can project the words "Running" onto the ground in front of the cabinet 200, and in the maintenance state, the maintenance light 132 can project the words "Maintaining here" onto the ground in front of the cabinet 200. This utility model's technical solution, through the light guidance of the operation light 131 and the maintenance light 132, facilitates maintenance personnel in quickly finding the object to be maintained and reaching the maintenance area, preventing them from going to the wrong interval and saving search time.

[0048] Preferably, the operation light 131 and the maintenance light 132 project different colors. For example, the word "Running" projected by the operation light 131 is green, and the word "Maintaining here" projected by the maintenance light 132 is red, in order to improve visibility, ensure that maintenance personnel can quickly identify the status of the cabinet 200, facilitate maintenance personnel to quickly find the maintenance object and reach the maintenance area, prevent going to the wrong interval, and save search time.

[0049] Preferably, the projection lamp 130 also includes a light sensor. If the projection light of the running lamp 131 is detected to be blocked, the light sensor triggers an alarm to remind personnel to move away from the running area.

[0050] like Figure 1 As shown, the intelligent maintenance warning device 100 also includes a door status detection component 140. The door status detection component 140 is disposed on the bottom surface of the housing 110 and can detect the opening and closing status of the cabinet door 220 of the cabinet 200. The door status detection component 140 includes at least two distance sensors, which are arranged sequentially along the opening and closing direction of the cabinet door 220. The opening and closing status of the cabinet door 220 is determined by the order in which the cabinet door 220 blocks the distance sensors and the difference in the blocking distance. When the cabinet door 220 is open or closed, the door frame blocks the optical path of the distance sensor, causing a change in the measured distance, and the control unit 150 records this event. This utility model's technical solution, by sequentially arranging at least two distance sensors along the opening and closing direction of the cabinet door 220, facilitates the detection of the opening and closing status of the cabinet door 220, helps prevent the cabinet door 220 from opening while the cabinet 200 is in operation, and improves the safety and efficiency of power maintenance. Specifically, the door status detection component 140 can be a time-of-flight laser rangefinder, or other types of sensors, such as infrared sensors, etc., which are not limited in this application.

[0051] Specifically, such as Figure 1 As shown, the door status detection component 140 includes a first ranging sensor 141 and a second ranging sensor 142. When the first ranging sensor 141 triggers before the second ranging sensor 142 and the difference in obstruction distance is not greater than a preset distance, the door status detection component 140 detects that the cabinet door 220 is in a closed state. When the second ranging sensor 142 triggers before the first ranging sensor 141 and the difference in obstruction distance is not greater than a preset distance, the door status detection component 140 detects that the cabinet door 220 is in an open state and uploads the open state of the cabinet door 220 to the control unit 150. For example, if the second ranging sensor 142 and the first ranging sensor 141 obstruct each other successively, and the obstruction distance is less than or equal to 2cm, then the cabinet door 220 is determined to be in an open state. If the first ranging sensor 141 and the second ranging sensor 142 obstruct each other successively, and the obstruction distance is less than or equal to 2cm, then the cabinet door 220 is determined to be in a closed state.

[0052] like Figure 2 As shown, the intelligent maintenance warning device 100 also includes a control unit 150, which is located inside the housing 110 and electrically connected to the flip display unit 120, the projection lamp 130, and the door status detection component 140. The door status detection component 140 is electrically connected to the control unit 150 and is used to detect the opening and closing status of the cabinet door 220 of the cabinet 200, which helps to prevent the cabinet door 220 from opening while the cabinet 200 is in operation, thereby improving the safety and efficiency of power maintenance. The control unit 150 is communicatively connected to the maintenance error prevention system 210 of the cabinet 200 to control the sign flipping mechanism 120, the locking part 170, and the projection lamp 130 to synchronously switch their working states. The door status detection component 140 can upload the opening and closing status of the cabinet door 220 to the control unit 150. This utility model's technical solution establishes a communication link between the control unit 150 and the maintenance prevention system 210 of the cabinet 200. The maintenance prevention system 210 can transmit normal operation signals and maintenance signals to the control unit 150 according to different states of the cabinet 200. The control unit 150 can respond to the signal commands of the maintenance prevention system 210, facilitating the electronic deployment of safety measures. The display content of the label flipping mechanism 120 and the projection content of the projection lamp 130 can be controlled through the maintenance prevention system 210, forcibly linked to the task to prevent incorrect or missed labeling during manual labeling. Furthermore, the opening and closing status of the cabinet door 220 is also forcibly linked to the task to prevent the cabinet door 220 from opening while the cabinet 200 is in operation, thus improving the safety and efficiency of power maintenance.

[0053] Specifically, the switching of warning signs 123 and the configuration of the projection content of the projection lamp 130 are linked and set according to the control commands of the control unit 150, which come from the maintenance and error prevention system 210 of the cabinet 200. When the sign 123 displays the operation sign, the operation lamp 131 projects the operation sign onto the ground in front of the cabinet 200; when the sign 123 displays the maintenance sign, the maintenance lamp 132 projects the maintenance sign onto the ground in front of the cabinet 200. This utility model's technical solution achieves automated status indication and improves the safety and efficiency of power maintenance through the coordinated operation of dynamic switching display and projection guidance.

[0054] Furthermore, the housing 110 includes a first housing and a second housing, which are detachably connected. The label flipping mechanism 120, the projection lamp 130, the door status detection assembly 140, and the control unit 150 are disposed within the receiving cavity enclosed by the first and second housings. Figures 3 to 4 As shown, the first housing and the second housing have a clearance channel 112 for avoiding the movement of the connecting part 122, so that the connecting part 122 can drive the sign 123 to switch between displaying the operation sign and the maintenance sign.

[0055] like Figure 2 As shown, the intelligent maintenance warning device 100 also includes a communication unit and a power supply unit 160. The control unit 150 is wirelessly connected to the maintenance error prevention system 210 via the communication unit. The power supply unit 160 is electrically connected to the label flipping mechanism 120, the projection lamp 130, the door status detection component 140, the control unit 150, and the communication unit, providing power to the intelligent maintenance warning device 100. In this embodiment, the communication unit supports both wired and wireless communication using RS173285. Wireless communication supports communication methods such as Bluetooth, WAPI, or WIFI, which are not limited in this application.

[0056] The specific working steps of the intelligent maintenance warning device 100 are described below.

[0057] First, the intelligent maintenance warning device 100 is connected to the maintenance error prevention system 210. When the cabinet 200 needs to be maintained, the maintenance error prevention system 210 selects the corresponding intelligent maintenance warning device 100 according to the work order and issues status command information.

[0058] If the cabinet 200 is initially in the running state, the first locking shaft 171 extends and engages with the locking hole 1221 to lock the connecting part 122. The sign 123 displays the word "Running" and can restrict the cabinet door 220 from opening outward. The running light 131 projects the word "Running" onto the ground in front of the cabinet 200.

[0059] When the intelligent maintenance warning device 100 receives a maintenance command, the first locking shaft 171 retracts, separates from the locking hole 1221, and unlocks the connecting part 122. The drive unit 124 sequentially drives the rotating part 121 and the connecting part 122 to rotate, causing the sign 123 to flip upward. The connecting part 122 triggers the second sensor 1732, and the drive unit 124 stops driving the connecting part 122. The second locking shaft 172 extends and engages with the locking hole 1221 to lock the connecting part 122. The sign 123 displays the maintenance sign "Maintenance Here". The sign 123 can unlock the cabinet door 220, allowing maintenance personnel to open the cabinet door 220 to perform equipment maintenance inside the cabinet 200. The maintenance light 132 illuminates, projecting the words "Maintenance Here" onto the ground in front of the cabinet 200, and the operation light 131 turns off.

[0060] When maintenance personnel open cabinet door 220 to perform equipment maintenance inside cabinet 200, door status detection component 140 detects that cabinet door 220 is open and marks the status of cabinet door 220 as "open" in maintenance error prevention system 210.

[0061] After the maintenance task is completed, the cabinet door 220 is closed. The door status detection component 140 detects that the cabinet door 220 is closed and sends the closed status of the cabinet door 220 to the maintenance error prevention system 210. The maintenance error prevention system 210 reissues the command to the intelligent maintenance warning device 100. The second locking shaft 172 retracts to unlock the connecting part 122, and the sign 123 flips downward. The connecting part 122 triggers the first sensor 1731, and the drive part 124 stops driving the connecting part 122. The first locking shaft 171 extends and locks the connecting part 122. The sign 123 displays the running indicator with the words "Running". The sign 123 can prevent the cabinet door 220 from opening outward. The running light 131 lights up and projects the words "Running" onto the ground in front of the cabinet 200, and the maintenance light 132 turns off. If the door status detection component 140 detects that the door has not been successfully closed, the maintenance error prevention system 210 cannot send a command to the intelligent maintenance warning device 100.

[0062] In case of emergency, a long, thin object can be inserted into the unlocking slot 111 to move the lever 174 of the first locking shaft 171 or the second locking shaft 172 to unlock the connection part 122, thereby unlocking the identification plate 123 and the cabinet door 220. The first locking shaft 171 or the second locking shaft 172 records this operation and sends it to the maintenance error prevention system 210 for recording.

[0063] This utility model's technical solution, by incorporating a sign flipping mechanism 120, a projection lamp 130, a door status detection component 140, a locking part 170, and a control unit 150, and communicating with the maintenance error prevention system 210 of the cabinet 200, facilitates remote real-time control and electronic deployment of safety measures, and provides clear and direct indication of the cabinet 200's operating status. Through the display of the sign flipping mechanism 120 and the light guidance of the projection lamp 130, maintenance personnel can quickly locate the object to be repaired and reach the repair area, preventing them from going to the wrong section and saving search time. The sign flipping mechanism 120 can also lock the cabinet door 220 while the cabinet 200 is running. Combined with the door status detection component 140, it detects the open / closed status of the cabinet door 220, preventing the cabinet door 220 from opening while the cabinet 200 is running, thus providing an error-prevention locking function and further preventing maintenance personnel from going to the wrong section, thereby improving the safety and efficiency of power maintenance. This utility model's technical solution can deploy multiple cabinets 200 simultaneously, achieving omnidirectional guidance from the top to the bottom of the cabinet 200.

[0064] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An intelligent maintenance warning device, installed at the top of a power distribution cabinet, the power distribution cabinet having operating and maintenance states, characterized in that, The intelligent maintenance warning device includes: a housing, a label flipping mechanism, and a projection light; The sign flipping mechanism includes a rotating part, a locking part, and a sign. The projection lamp is embedded in the housing. The sign flips along the rotating part to switch the display of warning signs. The locking part locks the rotating part when the sign flips to the correct position. At the same time, the projection lamp projects the same warning signs onto the ground in front of the cabinet. The warning signs include operation signs and maintenance signs. In the operating state, the warning sign is an operating sign, and the sign flips downward along the rotating part to become the operating sign, thereby stopping the cabinet door of the power panel from opening outward; in the maintenance state, the warning sign is a maintenance sign, and the sign flips upward along the rotating part to become the maintenance sign, thereby releasing the stop limit on the cabinet door of the power panel.

2. The intelligent maintenance warning device as described in claim 1, characterized in that, The sign flipping mechanism also includes a drive unit, and the rotating part is connected to the rotation output shaft of the drive unit. The drive unit can drive the rotating part to rotate, thereby enabling the sign to flip along the rotating part.

3. The intelligent maintenance warning device as described in claim 2, characterized in that, The sign flipping mechanism further includes a connecting part, one end of which is connected to the signboard, and the other end of which is connected to the rotating part. The locking part includes a first locking shaft and a second locking shaft disposed on both sides of the housing. The middle part of the connecting part has a locking hole that cooperates with the first locking shaft or the second locking shaft. The first locking shaft and the second locking shaft can be connected to the locking hole respectively to restrict the rotation of the connecting part.

4. The intelligent maintenance warning device as described in claim 3, characterized in that, The locking part includes a limiting structure, which includes a first sensor and a second sensor. When the sign flips to display the running indicator, the connecting part triggers the first sensor, the driving part stops driving the rotating part to rotate, and the first locking shaft locks the locking hole. When the sign flips to display the maintenance indicator, the connecting part triggers the second sensor, the driving part stops driving the rotating part to rotate, and the second locking shaft locks the locking hole.

5. The intelligent maintenance warning device as described in claim 4, characterized in that, The housing is provided with unlocking slots corresponding to the first locking shaft and the second locking shaft respectively. The intelligent maintenance warning device has an emergency unlocking state. In the emergency unlocking state, the first locking shaft and the second locking shaft can be moved through the unlocking slots to urgently unlock the connecting part.

6. The intelligent maintenance warning device as described in claim 1, characterized in that, The projection light includes a running light and a maintenance light arranged side by side in the middle area of ​​the bottom of the housing. The optical axes of the running light and the maintenance light are tilted downward so that the projected warning signs can cover the ground in front of the cabinet. In the operating state, the operating light projects the operating indicator onto the ground in front of the cabinet; and / or, In the maintenance state, the maintenance light projects the maintenance sign onto the ground in front of the cabinet.

7. The intelligent maintenance warning device as described in claim 1, characterized in that, The intelligent maintenance warning device also includes a door status detection component, which is disposed on the bottom surface of the housing. The door status detection component includes at least two distance sensors, which are arranged sequentially along the direction of cabinet door opening and closing. The cabinet door opening and closing status is determined by the order in which the cabinet door blocks the distance sensors and the difference in the blocking distance.

8. The intelligent maintenance warning device as described in claim 1, characterized in that, The back of the housing is provided with a bracket extending laterally along the top of the power cabinet; or, the back of the housing is provided with a magnetic attachment extending laterally along the top of the power cabinet.

9. The intelligent maintenance warning device as described in claim 7, characterized in that, The intelligent maintenance warning device also includes a control unit, which is communicatively connected to the maintenance error prevention system of the power cabinet to control the synchronous switching of the working states of the label flipping mechanism, the locking part and the projection lamp respectively.

10. The intelligent maintenance warning device as described in claim 9, characterized in that, The intelligent maintenance warning device also includes a power supply unit, which is electrically connected to the sign flipping mechanism, the projection light, the door status detection component, and the control unit.

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