An anti-theft electricity metering box with a shear pin anti-pry mechanism on the hinge side

Abstract

This invention belongs to the field of electrical equipment technology and discloses an anti-theft metering box with a hinge-side shear pin anti-pry mechanism. The anti-theft metering box includes a cabinet assembly, in which a meter is connected. The cabinet assembly includes a housing with an open-end storage cavity. The meter is located within the storage cavity. A cabinet door is rotatably mounted on one end of the housing, capable of closing the storage cavity. The core anti-pry function is achieved through the linkage of the hinge assembly and a triggering assembly. The pin vertically penetrates the hinge fixing part and the housing, with a preset shear strength acting as a mechanical fuse. When the cabinet door is subjected to prying, impact, or other external forces exceeding a threshold, the pin breaks first, preventing deformation of the cabinet and hinge. Simultaneously, the transmission end identifies the pin's status in real time and wirelessly transmits abnormal information to a remote terminal, alerting staff to promptly investigate electricity theft or equipment damage.

Description

Technical Field

[0001] This invention belongs to the field of electrical equipment technology, specifically an anti-theft electricity metering box with a shear pin anti-pry mechanism on the hinge side. Background Technology

[0002] While traditional anti-theft metering boxes can trigger alarms, cut off power, and leave traces when forcibly opened, they are prone to deformation and damage to the main structure, such as the cabinet and hinges, when pried open by external force. Relying solely on a single trigger signal for anomaly detection can easily lead to misjudgments or missed detections. Furthermore, the protective design of traditional metering boxes is relatively simple, making it difficult to achieve the dual goals of preventing electricity theft and protecting equipment from multiple dimensions, including structural protection, anomaly monitoring, and intelligent handling.

[0003] Patent application number CN202511185381.X discloses an anti-theft electricity metering box, relating to the field of electrical equipment technology. It includes a door, a box body, a locking device, and an alarm device. The lock cylinder of the locking device is rotatably mounted in the mounting groove of the box body, and the key has a complex unlocking structure and operating logic. The alarm device is located on the door. When the door is forcibly opened, the plug-in block displaces and presses against the trigger block, triggering a pressure sensor. When the pressure sensor detects a value exceeding a threshold, it activates the alarm, sounds an alarm, controls the main circuit breaker to cut off the power supply circuit to the metering box, and sprays dye from the compression chamber through a nozzle. This design improves the anti-theft performance of the metering box, providing timely alarm activation, power cut-off, and dye markings upon forced opening, facilitating subsequent investigation.

[0004] Meanwhile, existing metering boxes lack multi-directional physical buffer protection structures, have weak resistance to violent damage, and lack intelligent hierarchical monitoring and linkage response mechanisms. They cannot take targeted countermeasures based on the degree of external interference, and also suffer from problems such as a single abnormal information transmission method and low operation and maintenance response efficiency.

[0005] Therefore, in order to solve the above-mentioned technical problems, the present invention proposes an anti-theft electricity metering box with a shear pin anti-pry mechanism on the hinge side. Summary of the Invention

[0006] The purpose of this invention is to address the above-mentioned problems. This invention provides an anti-theft electricity metering box with a shear pin anti-pry mechanism on the hinge side, which has the advantages of graded anti-pry monitoring and multi-directional structural protection.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an anti-theft electricity metering box with a shear pin anti-pry mechanism on the hinge side, comprising a cabinet assembly, a meter connected inside the cabinet assembly, the cabinet assembly including a box body, a storage cavity with an open end inside the box body, the meter located in the storage cavity, and a cabinet door rotatably provided on one end of the box body, the cabinet door being able to close the storage cavity, at least two hinge assemblies for controlling the rotation of the cabinet door being connected between the cabinet door and the box body, and a triggering component being connected to the hinge assembly; The triggering component includes a fixing plate, one end of which is connected to the cavity wall of the storage cavity. A pin is connected to the end of the fixing plate near the hinge component, and a transmission end for identifying the state of the pin is also connected to the fixing plate.

[0008] Preferably, the hinge assembly includes a fixing part, one end of which is connected to the cavity wall of the storage cavity, and a rotating part is connected to the end of the fixing part near the cabinet door. The rotating part is connected to the cabinet door, and a sliding block for adjusting the rotation state of the rotating part is connected to the end of the fixing part away from the cavity wall of the storage cavity. The pin passes through the fixing part and the cabinet body, and the pin is perpendicular to the end face of the fixing part.

[0009] Preferably, the cabinet door is provided with an observation window for observing the readings of the measuring instrument, and the cabinet door is also provided with a ventilation slot for maintaining a dry environment inside the storage cavity.

[0010] Preferably, a lock is connected to one end of the cabinet door near the meter, and a clamping member is connected to the cabinet body for corresponding to the position of the lock, the clamping member being able to clamp and fix the position of the lock.

[0011] Preferably, multiple buffer components are hinged to both ends of the box along its width direction, and a movable plate is hinged to the end of each buffer component away from the box.

[0012] Preferably, pressure plates are movably provided on both sides of the cabinet along the height direction, and a spring-loaded column for resetting the pressure plate is connected between the pressure plate and the cabinet, and the cabinet door abuts against the edge of the pressure plate.

[0013] Preferably, the buffer assembly includes a column for connection and protection, with a connecting column slidably disposed within the column, and the two ends of the connecting column distributed along the length direction are respectively hinged to the housing and the movable plate.

[0014] Preferably, a sliding cavity is formed in the column, a connecting plate is connected to the connecting column, the connecting plate is slidably connected to the sliding cavity, and elastic columns are respectively connected to both ends of the connecting plate, with the end of the elastic column away from the connecting plate connected to the cavity wall of the sliding cavity.

[0015] Preferably, a buffer strip is connected between the movable plate and the pressure plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The core anti-pry function is achieved through the linkage of the hinge assembly and the trigger assembly. The pin penetrates vertically through the hinge fixing part and the cabinet body. The preset shear strength acts as a mechanical fuse. When the cabinet door is subjected to external forces exceeding the threshold such as prying or impact, the pin breaks first to prevent deformation of the cabinet body and hinge. At the same time, the transmission end of the trigger assembly identifies the status of the pin in real time and wirelessly transmits the abnormal information to the remote terminal to remind staff to check for electricity theft or equipment damage in time. In addition, the meter is placed in the closed storage cavity of the cabinet, avoiding direct connection of external lines to the meter from the source, reducing the basic risk of electricity theft. The sliding block of the hinge assembly can also fine adjust the rotation pressure to ensure that the cabinet door can open and close normally without affecting the anti-pry monitoring.

[0017] 2. By cooperating with the buffer assembly and the movable plate, when the side is subjected to force, the movable plate drives the connecting column of the buffer assembly to slide. The connecting plate squeezes the elastic column, converting the external force potential energy into elastic potential energy to offset the external force on the side. The pressure plate in the height direction of the cabinet cooperates with the rebound column. When the vertical direction is subjected to force, the pressure plate squeezes the rebound column, relying on its elastic deformation to offset the external force. In addition, the cabinet door abuts against the edge of the pressure plate, indirectly preventing the cabinet door from shifting. It protects the hinges and pins from being damaged by non-threshold external forces, and enhances the overall structural resistance to damage.

[0018] 3. The multi-dimensional sensing unit and intelligent control module work together to classify mild, moderate and severe interference levels by using a hierarchical judgment unit and a control variable method. The linkage execution unit matches the corresponding actions to ensure the safe use of the metering box. In addition, the remote communication unit adopts LoRa and 5G dual-mode transmission, which takes into account low power consumption and timeliness, and can also realize remote operation and maintenance. The information stored in the data storage unit can also provide support for later traceability and solution optimization, realizing accurate judgment of anomaly monitoring and efficient collaboration of operation and maintenance. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the overall device according to Embodiment 1 of the present invention; Figure 2 This is a three-dimensional structural diagram of the overall device according to Embodiment 2 of the present invention; Figure 3 This is a schematic diagram of the connection structure of the buffer component of the present invention; Figure 4This is a three-dimensional structural diagram of the buffer component of the present invention; Figure 5 This is a cross-sectional structural diagram of the buffer component of the present invention; Figure 6 This is a schematic diagram of the connection structure between the hinge assembly and the trigger assembly of the present invention; Figure 7 This is a cross-sectional structural diagram of the hinge assembly and trigger assembly of the present invention; Figure 8 This is a three-dimensional structural diagram of the cabinet assembly of the present invention; Figure 9 This is a schematic diagram of the connection structure of the spring-loaded column of the present invention.

[0020] Figure Descriptions: 1. Cabinet assembly; 101. Cabinet body; 1011. Storage cavity; 102. Cabinet door; 1021. Observation window; 1022. Ventilation slot; 103. Movable plate; 1031. Buffer strip; 104. Pressure plate; 105. Spring-loaded post; 2. Hinge assembly; 201. Fixing part; 202. Sliding block; 203. Rotating part; 3. Measuring gauge; 4. Lock; 5. Clamping part; 6. Buffer assembly; 601. Column; 6011. Sliding cavity; 602. Connecting post; 603. Elastic post; 604. Connecting plate; 7. Trigger assembly; 701. Fixing plate; 702. Transmission end; 703. Pin. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1 like Figure 1 , Figure 6 - Figure 7As shown, this invention discloses an anti-theft electricity metering box with a shear pin anti-pry mechanism on the hinge side. It includes a cabinet assembly 1 for connection and installation, and a meter 3 for recording electricity usage is connected inside the cabinet assembly 1. The cabinet assembly 1 includes a box 101 for fixing to an external object, and a storage cavity 1011 with an opening at one end is formed inside the box 101. The meter 3 is located inside the storage cavity 1011, ensuring that the cabinet assembly 1 can protect the meter 3, while reducing the direct connection of external wiring to the meter 3, thus reducing the risk of electricity theft. Furthermore, one end of the box 101 is rotated upwards... The storage compartment 1011 is equipped with a cabinet door 102 for controlling the opening and closing of the storage compartment 1011. The cabinet door 102 can close the storage compartment 1011 to ensure that the storage compartment 1011 cannot be opened at will. At least two hinge assemblies 2 for controlling the rotation of the cabinet door 102 are connected between the cabinet door 102 and the box body 101. When the cabinet door 102 and the box body 101 rotate relative to each other, the cabinet door 102 rotates with the box body 101 through the hinge assembly 2, and ensures the connection between the cabinet door 102 and the box body 101. A trigger assembly 7 for recognizing the usage status of the cabinet door 102 is connected to the hinge assembly 2.

[0023] The triggering component 7 includes a fixing plate 701 for end fixing connection. One end of the fixing plate 701 is connected to the cavity wall of the storage cavity 1011 to maintain the stability of the fixing plate 701 position. The end of the fixing plate 701 near the hinge component 2 is connected to a pin 703 for detecting the status of the cabinet door 102. The fixing plate 701 is also connected to a transmission end 702 for identifying the status of the pin 703. The transmission end 702 uses wireless transmission technology to transmit the status information of the pin 703. Thus, during the normal use of the cabinet component 1, the pin 703 will not interfere with the use of the hinge component 2. When an external force intervenes in the cabinet door 102, the cabinet door 102 is subjected to force and causes the hinge component 2 to be subjected to force in an abnormal direction, thereby causing relative sliding between the hinge component 2 and the cabinet 101, causing the pin 703 to break. The information is transmitted to a remote data terminal through the transmission end 702, reminding the staff to perform timely maintenance and inspection of the metering cabinet to ensure that there is no electricity theft.

[0024] It should be noted that the pin 703 acts as a mechanical fuse with a preset shear strength. When the cabinet door 102 is subjected to external forces such as impact, overload, prying, or earthquake exceeding the threshold, the pin 703 will shear off first to prevent the hinge assembly 2 and the cabinet assembly 1 from being deformed or damaged.

[0025] Furthermore, to ensure normal rotation between the cabinet door 102 and the box body 101, the hinge assembly 2 includes a fixing part 201. One end of the fixing part 201 is connected to the cavity wall of the storage cavity 1011. The end of the fixing part 201 near the cabinet door 102 is connected to a rotating part 203. The rotating part 203 is rotatably connected to the fixing part 201 and connected to the cabinet door 102 to ensure that the rotation of the cabinet door 102 can close the storage cavity 1011. The end of the fixing part 201 away from the cavity wall of the storage cavity 1011 is connected to a sliding block 202 for adjusting the rotation state of the rotating part 203, thereby fine-tuning the rotational pressure between the rotating part 203 and the fixing part 201 to maintain the normal rotation of the rotating part 203. A pin 703 passes through the fixing part 201 and the box body 101, and the end face of the pin 703 is perpendicular to the end face of the fixing part 201 to ensure that the pin 703 can quickly identify the offset state of the fixing part 201.

[0026] Furthermore, the cabinet door 102 is provided with an observation window 1021 for observing the reading of the meter 3, thereby reducing the number of times the cabinet door 102 is opened and closed and improving the efficiency of data collection from the meter 3. The cabinet door 102 is also provided with a ventilation slot 1022 for maintaining a dry environment inside the storage cavity 1011.

[0027] Furthermore, in order to ensure the connectivity between the cabinet door 102 and the box body 101, a lock 4 for position locking is connected to the end of the cabinet door 102 near the meter 3, and a clamping member 5 corresponding to the position of the lock 4 is connected to the box body 101. The clamping member 5 can clamp and fix the position of the lock 4, so that when the cabinet door 102 rotates through the hinge assembly 2, the lock 4 on the cabinet door 102 is forced to abut and fix against the clamping member 5, maintaining the closed state of the cabinet door 102 to the storage cavity 1011.

[0028] During use, the coordinated operation of various components enables the dual functions of protecting the meter 3 and preventing tampering and electricity theft. At the same time, it can perform timely monitoring and early warning when abnormal external forces intervene, effectively protecting the main structure of the box 101 from damage.

[0029] Specifically, the housing 101 and the cabinet door 102 constitute a storage and protection space for the meter 3. The meter 3 is placed in the storage cavity 1011 of the housing 101, which avoids direct connection of external lines to the meter 3 from the source, thereby reducing the risk of electricity theft. The cabinet door 102 is rotatably connected to the housing 101 through at least two hinge components 2, thereby completing the opening and closing control of the storage cavity 1011.

[0030] Under normal conditions, the cabinet door 102 is fixed to the housing 101 by the locking piece 4 and the clamping piece 5. The clamping piece 5 clamps and limits the locking piece 4, so that the cabinet door 102 stably closes the storage cavity 1011, ensuring that the meter 3 is in a closed and protected state. The observation window 1021 on the cabinet door 102 can directly collect the reading of the meter 3, reducing the frequency of opening and closing the cabinet door 102. The ventilation groove 1022 on the cabinet door 102 can also maintain a dry environment inside the storage cavity 1011, ensuring the normal operation of the meter 3. The basic cooperation of each structure realizes the basic protection and normal use function of the meter box.

[0031] Meanwhile, the hinge assembly 2, as the core component for the rotatable connection between the cabinet door 102 and the box body 101, has its fixed part 201 fixedly connected to the cavity wall of the storage cavity 1011, and its rotating part 203 connected to the cabinet door 102 and forming a rotatable engagement with the fixed part 201, ensuring that the cabinet door 102 can rotate smoothly to realize the opening and closing of the storage cavity 1011. The sliding block 202 on the fixed part 201 can also finely adjust the rotational pressure between the rotating part 203 and the fixed part 201, ensuring the normal rotational state of the rotating part 203 and maintaining the smooth opening and closing of the cabinet door 102. Furthermore, the pin 703 vertically penetrates the fixed part 201 and the box body 101, so that the pin 703 and the fixed part 201 of the hinge assembly 2 form a tight structural connection.

[0032] In addition, the trigger component 7 and the hinge component 2 work together to realize the anti-pry monitoring and early warning function of the metering box. The fixing plate 701 of the trigger component 7 is fixedly connected to the cavity wall of the storage cavity 1011 to ensure the stability of the position of the fixing plate 701. The pin 703 on the fixing plate 701 is the core component for status detection. The transmission end 702 identifies the status of the pin 703 in real time and realizes the remote transmission of status information through wireless transmission technology.

[0033] Under normal operating conditions, the pin 703 will not interfere with the normal rotation of the hinge assembly 2, and the metering box can smoothly open and close the cabinet door 102. However, when an external force pries or impacts the cabinet door 102, or when the cabinet door 102 is subjected to an external force exceeding the threshold such as overload or earthquake, the cabinet door 102 will be subjected to an abnormal force, which will cause the hinge assembly 2 to be subjected to an abnormal force. This will cause relative sliding between the fixed part 201 of the hinge assembly 2 and the box body 101. At this time, the pin 703, which is preset with shear strength, will act as a mechanical fuse and will break before the hinge assembly 2 and the cabinet body assembly 1, thereby preventing the hinge assembly 2 from deforming and the cabinet body assembly 1 from being damaged, effectively protecting the main structure of the metering box.

[0034] When pin 703 breaks, the transmission terminal 702 on the fixing plate 701 immediately detects the change in the state of pin 703 and quickly sends the abnormal information to the remote data terminal via wireless transmission. Staff can receive the warning signal in time and then quickly repair and inspect the metering box to promptly investigate electricity theft or equipment damage. This metering box effectively prevents electricity theft from both structural linkage and monitoring and early warning levels, while ensuring the integrity of the metering box itself. It solves the problem that traditional metering boxes are easily damaged by external prying and cannot detect electricity theft in time.

[0035] Example 2 Although the first embodiment above uses pins 703 to protect the structure of the cabinet door 102, the pins 703 are easily damaged when subjected to external force, which in turn causes deformation of the box body 101 and the cabinet door 102, affecting the normal use of the metering box and making it impossible to quickly identify and detect the usage status of the metering box. Therefore, the second embodiment is proposed to solve the above technical problems.

[0036] like Figure 2 - Figure 5 , Figure 8 - Figure 9 As shown, multiple buffer components 6 for potential energy cancellation are hinged at both ends of the cabinet 101 along the width direction. The end of the buffer component 6 away from the cabinet 101 is hinged to a movable plate 103 for protection. In use, when an external force intervenes to forcibly open the cabinet door 102, the movable plate 103 is subjected to force, which causes the buffer component 6 to deform, thereby canceling the external force, reducing the load on the cabinet door 102, improving the protection efficiency of the cabinet door 102 and the utilization efficiency of the pin 703.

[0037] Meanwhile, the transmission end 702 is electrically connected to an intelligent control module. The intelligent control module has a built-in signal acquisition unit, a hierarchical judgment unit, a linkage execution unit, and a remote communication unit. The signal acquisition unit is used to collect the status signal of the pin 703 and the force sensing signal of the cabinet component 1. The hierarchical judgment unit classifies the collected signals using the control variable method. The linkage execution unit executes the corresponding linkage action according to the hierarchical judgment result. The remote communication unit realizes two-way data interaction with the power operation and maintenance platform.

[0038] Furthermore, a pressure sensing unit is provided on the fixing part 201. The pressure sensing unit is electrically connected to the signal acquisition unit of the intelligent control module. The pressure sensing unit is used to collect the radial and axial external force pressure values ​​of the hinge assembly 2 as auxiliary judgment variables of the grading judgment unit.

[0039] The lock component 4 is equipped with a lock cylinder status sensing unit, which is electrically connected to the signal acquisition unit of the intelligent control module. It is used to collect abnormal prying and lock cylinder damage signals of the lock component 4 as independent judgment variables of the graded judgment unit.

[0040] The movable plate 103 is equipped with a displacement sensing unit on its inner side. The displacement sensing unit is electrically connected to the signal acquisition unit of the intelligent control module and is used to collect the displacement of the movable plate 103 as a determination variable for the strength of the cabinet side in the graded determination unit.

[0041] Furthermore, in order to ensure that the cabinet door 102 can also protect the cabinet door 102 and the box body 101 when subjected to forces from other directions, pressure plates 104 for buffer protection are movably provided on both sides of the box body 101 along the height direction. A spring-loaded column 105 for resetting the pressure plate 104 is connected between the pressure plate 104 and the box body 101. The edges of the cabinet door 102 and the pressure plate 104 abut against each other. When the cabinet door 102 is subjected to external forces from the upper and lower directions, the pressure plate 104 moves under the force, causing the spring-loaded column 105 to extend in length, thus offsetting the external force.

[0042] It should be noted that the rebound post 105 is preferably an elastic buffer post, which uses elastic force to offset the resistance of the pressure plate 104, ensuring that the cabinet door 102 and the box body 101 will not deform.

[0043] Furthermore, an elastic deformation sensing unit is provided on the rebound column 105. The elastic deformation sensing unit is electrically connected to the signal acquisition unit of the intelligent control module to collect the deformation of the rebound column 105 as a determination variable for the force intensity of the upper and lower ends of the cabinet in the grading determination unit.

[0044] Furthermore, the buffer assembly 6 includes a column 601 for connection and protection. A connecting column 602 is slidably disposed within the column 601. The two ends of the connecting column 602, distributed along its length, are respectively hinged to the housing 101 and the movable plate 103. Thus, when relative movement occurs between the movable plate 103 and the housing 101, the connecting column 602 is driven to rotate hingedly, ensuring that the range of motion of the movable plate 103 is stable and that there is no excessive offset. At the same time, a sliding cavity 6011 is provided within the column 601 for the movement of the connecting column 602. A connecting plate 604 is connected to constrain the movement path of the connecting column 602. The connecting plate 604 is slidably connected to the sliding cavity 6011, and elastic columns 603 are connected to both ends of the connecting plate 604. The end of the elastic column 603 away from the connecting plate 604 is connected to the cavity wall of the sliding cavity 6011. When the movable plate 103 moves and causes the connecting column 602 to slide, it causes the connecting plate 604 to slide in the sliding cavity 6011 and causes the elastic column 603 to elastically extend and retract, ensuring that the movement state of the movable plate 103 can be buffered in time.

[0045] Furthermore, a buffer strip 1031 is connected between the movable plate 103 and the pressure plate 104 to seal the gap between the movable plate 103 and the pressure plate 104, so as to ensure that no impurities enter between the movable plate 103 and the pressure plate 104, and that the buffer strip 1031 will not be damaged during the movement of the buffer assembly 6.

[0046] The hierarchical judgment unit of the intelligent control module uses the control variable method to take the state of pin 703, hinge pressure value, lock cylinder state, displacement of movable plate 103, and deformation of spring pin 105 as independent control variables, preset the threshold range of each variable, and divide the degree of external force interference to the metering box into three levels: mild interference, moderate prying, and severe violent damage. Each level is matched with a corresponding linkage execution action.

[0047] Specifically, the linkage execution unit of the intelligent control module executes hierarchical linkage actions based on the hierarchical judgment results. In this scheme, the hierarchical judgment results are divided into three categories: mild, moderate, and severe. Mild interference: When a single auxiliary judgment variable reaches the first-level threshold, and the pin 703 is not broken and the lock cylinder is in normal condition, the linkage execution unit controls the remote communication unit to send a mild interference warning signal to the power operation and maintenance platform, which includes information on the interference location and force type. There is no local power outage or alarm action to avoid false triggering.

[0048] Moderate tampering: When at least two auxiliary judgment variables reach the secondary threshold, or the lock cylinder status sensing unit detects an abnormal tampering signal and the pin 703 is not broken, the linkage execution unit controls the local audible and visual alarm device to start, and at the same time sends a moderate tampering alarm signal to the power operation and maintenance platform through the remote communication unit, including the alarm time, interference location, force data, and marks the meter box as a key monitoring object.

[0049] Severe violent damage: When the pin 703 breakage signal is collected, or any auxiliary judgment variable reaches the level 3 threshold, or the lock cylinder status sensing unit detects the lock cylinder damage signal, the linkage execution unit immediately controls the circuit breaker of the circuit where the metering box is located to trip and cut off the power. It sends a severe violent damage emergency signal to the power operation and maintenance platform through the remote communication unit, which includes the fault type, power outage time, metering box location information, and automatically triggers the power operation and maintenance platform to dispatch the nearest operation and maintenance personnel.

[0050] It should be noted that the threshold determination criteria are affected by the pressure value of the hinge assembly 2, the displacement of the moving plate 103, and the deformation of the spring column 105.

[0051] Furthermore, the remote communication unit of the intelligent control module adopts LoRa and 5G dual-mode communication. Light and moderate signals use LoRa low-power transmission, while heavy emergency signals use 5G high-speed transmission to ensure the stability and timeliness of signal transmission. At the same time, the remote communication unit receives feedback instructions from the power operation and maintenance platform, which can realize remote status query of metering boxes, alarm cancellation, circuit closing and other operations, thereby improving operation and maintenance efficiency.

[0052] Furthermore, the intelligent control module has a built-in data storage unit for storing all signal acquisition data, grading judgment results, and linkage execution action records for the past six months. The stored data can be uploaded to the power operation and maintenance platform through the remote communication unit, which facilitates the tracing of electricity theft, equipment fault analysis, and optimization of protection solutions in the future.

[0053] When the metering box is pried or impacted by an external force from the side, the external force first acts on the movable plate 103. After the movable plate 103 is subjected to force, it drives the hinged buffer assembly 6 to move. The connecting column 602 of the buffer assembly 6 slides along the sliding cavity 6011 of the column 601. The connecting plate 604 on the connecting column 602 moves in the sliding cavity 6011 and compresses or stretches the elastic columns 603 at both ends. The elastic columns 603 convert the potential energy of the external force into elastic potential energy through their own elastic deformation, thereby effectively offsetting and buffering the external force from the side. This reduces the load-bearing capacity of the external force directly acting on the box body 101 and the cabinet door 102, preventing deformation of the cabinet door 102 and the box body 101. At the same time, it protects the pins of the hinge assembly 2 and the trigger assembly 7. The nail 703 is not damaged by non-threshold external forces. When the metering box is subjected to external forces in the vertical direction, the external forces act directly on the pressure plate 104. The pressure plate 104 moves towards the box body 101 under force and compresses the rebound column 105. The rebound column 105 undergoes elastic deformation due to its own elastic properties. The deformation force offsets the external forces in the vertical direction. In addition, the cabinet door 102 and the edge of the pressure plate 104 abut against each other. The buffering effect of the pressure plate 104 can indirectly prevent the cabinet door 102 from shifting due to vertical external forces, further strengthening the structural protection capability of the cabinet. This physical buffering structure protects the metering box from multiple directions, greatly improving the metering box's resistance to violent damage and providing a structural basis for subsequent sensing detection and intelligent judgment.

[0054] While providing physical buffering, the multi-dimensional sensing and detection units of the metering box simultaneously collect various abnormal signals. Each sensing unit is electrically connected to the signal acquisition unit of the intelligent control module, forming a signal transmission link. The pressure sensing unit installed on the fixing part 201 of the hinge assembly 2 collects the radial and axial external force pressure values ​​of the hinge assembly 2 in real time, accurately capturing abnormal forces at the hinge. The lock cylinder status sensing unit inside the lock 4 monitors the working status of the lock cylinder in real time, and can effectively collect signals such as abnormal prying and damage to the lock cylinder.

[0055] The displacement sensing unit inside the movable plate 103 indirectly determines the stress intensity on the side of the cabinet by collecting the displacement of the movable plate 103. The elastic deformation sensing unit on the spring column 105 collects the deformation of the spring column 105 to determine the stress intensity at the top and bottom of the cabinet. The transmission end 702 of the trigger component 7 collects the status signal of the pin 703 in real time to determine whether the pin 703 has broken due to external force exceeding the threshold. Each sensing unit collects signals from five dimensions: hinge force, lock cylinder status, side displacement, upper and lower deformation, and pin 703 status, realizing comprehensive and blind-spot-free monitoring of the metering box under external force interference. Moreover, each collected signal is transmitted to the intelligent control module as an independent control variable, providing a comprehensive and accurate data source for subsequent intelligent classification judgment.

[0056] As the core control unit of the entire technical solution, the intelligent control module classifies all variables transmitted by the signal acquisition unit through the control variable method, presets the threshold range of each variable, and divides the degree of external interference to the metering box into three levels: mild interference, moderate prying, and severe violent damage.

[0057] In the grading judgment process, the state of pin 703, hinge pressure value, lock cylinder state, displacement of movable plate 103, and deformation of spring pin 105 are used as independent control variables. Each variable is assigned a first-level, second-level, or third-level threshold based on the force intensity and degree of damage. The grading judgment unit makes a comprehensive judgment based on the threshold triggering status of each variable, combined with the number and type of variables. If a single auxiliary judgment variable reaches the first-level threshold and pin 703 is not broken and the lock cylinder state is normal, it is judged as mild interference. If at least two auxiliary judgment variables reach the second-level threshold, or the lock cylinder state sensing unit detects an abnormal prying signal and pin 703 is not broken, it is judged as moderate prying. If a pin 703 breakage signal is collected, or any auxiliary judgment variable reaches the third-level threshold, or the lock cylinder state sensing unit detects a lock cylinder damage signal, it is judged as severe violent damage. This grading judgment method overcomes the limitations of single-signal judgment and significantly improves the accuracy of abnormal situation judgment through comprehensive judgment of multiple variables and thresholds, effectively avoiding misjudgments and omissions.

[0058] Based on the judgment result of the hierarchical judgment unit, the linkage execution unit of the intelligent control module executes the corresponding hierarchical linkage action, while the remote communication unit realizes two-way data interaction with the power operation and maintenance platform, forming a collaborative cooperation between local handling and remote operation and maintenance.

[0059] For minor interference, the linkage execution unit only controls the remote communication unit to send a minor interference warning signal to the power operation and maintenance platform using LoRa low-power transmission. This signal includes information such as the location of the interference and the type of force applied. It does not trigger local power outages or alarm actions, thus avoiding false triggering caused by minor external interference and ensuring the normal power supply and use of the metering box.

[0060] In response to moderate tampering, the linkage execution unit immediately activates the local audible and visual alarm device to warn the tamperer through audible and visual signals. At the same time, it controls the remote communication unit to send a moderate tampering alarm signal via LoRa, which includes information such as alarm time, interference location, and force data. The metering box is also marked as a key monitoring object for the operation and maintenance platform to monitor in real time.

[0061] In response to severe acts of vandalism, the linkage execution unit will immediately control the circuit breaker of the circuit containing the metering box to trip and cut off the power, thus preventing electricity theft at its source. The remote communication unit will switch to 5G high-speed transmission mode to send an emergency signal of severe vandalism to the power operation and maintenance platform, which includes key information such as the fault type, power outage time, and location of the metering box. It will also automatically trigger the dispatch instructions of the nearest operation and maintenance personnel on the power operation and maintenance platform to achieve rapid emergency response.

[0062] Furthermore, the remote communication unit of the intelligent control module adopts LoRa and 5G dual-mode communication, flexibly switching transmission modes according to the interference level. This ensures low power consumption for light and moderate signal transmission while maintaining stability and timeliness for severe emergency signal transmission. Simultaneously, the remote communication unit can receive feedback commands from the power operation and maintenance platform, enabling remote status queries of metering boxes, alarm deactivation, and circuit closing operations, significantly improving the efficiency of power operation and maintenance. The built-in data storage unit of the intelligent control module can store nearly six months of all signal acquisition data, classification judgment results, and linkage execution action records. This stored data can be uploaded to the power operation and maintenance platform via the remote communication unit, providing detailed data support for subsequent electricity theft tracing, equipment fault analysis, and protection scheme optimization.

[0063] The clamping member 5 on the cabinet 101 is located between the movable plate 103 and the cabinet 101, and its two ends are connected to both of them respectively. During the process of the movable plate 103 being subjected to force buffering, the clamping member 5 can form an auxiliary limit on the displacement of the movable plate 103, so as to avoid the movable plate 103 from excessively shifting and affecting the normal operation of the buffer assembly 6. At the same time, it further enhances the cooperation stability between the lock 4 and the clamping member 5, ensuring that the closed state of the cabinet door 102 is not affected by the external force buffering action.

[0064] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0065] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An anti-theft electricity metering box with a shear pin anti-pry mechanism on the hinge side, comprising a cabinet assembly (1), wherein a meter (3) is connected inside the cabinet assembly (1), characterized in that: The cabinet assembly (1) includes a box (101), a storage cavity (1011) with one end open is opened in the box (101), the meter (3) is located in the storage cavity (1011), and a cabinet door (102) is rotatably provided on one end of the box (101). The cabinet door (102) can close the storage cavity (1011). At least two hinge assemblies (2) for controlling the rotation of the cabinet door (102) are connected between the cabinet door (102) and the box (101). A trigger assembly (7) is connected to the hinge assembly (2). The triggering component (7) includes a fixing plate (701), one end of which is connected to the cavity wall of the storage cavity (1011). A pin (703) is connected to one end of the fixing plate (701) near the hinge component (2), and a transmission end (702) for identifying the state of the pin (703) is also connected to the fixing plate (701).

2. The anti-theft electricity metering box with a shear pin anti-pry mechanism on the hinge side according to claim 1, characterized in that: The hinge assembly (2) includes a fixing part (201), one end of which is connected to the cavity wall of the storage cavity (1011). The fixing part (201) is connected to a rotating part (203) at the end near the cabinet door (102). The rotating part (203) is connected to the cabinet door (102). The fixing part (201) is connected to a sliding block (202) at the end away from the cavity wall of the storage cavity (1011) for adjusting the rotation state of the rotating part (203). The pin (703) passes through the fixing part (201) and the box body (101), and the pin (703) is perpendicular to the end face of the fixing part (201).

3. The anti-theft electricity metering box with a shear pin anti-pry mechanism on the hinge side according to claim 1, characterized in that: The cabinet door (102) is provided with an observation window (1021) for observing the reading of the meter (3), and the cabinet door (102) is also provided with a ventilation slot (1022) for maintaining the dry environment inside the storage cavity (1011).

4. The anti-theft electricity metering box with a shear pin anti-pry mechanism on the hinge side according to claim 3, characterized in that: The cabinet door (102) is connected to a lock (4) at one end near the meter (3), and the box body (101) is connected to a clamping member (5) corresponding to the position of the lock (4). The clamping member (5) can clamp and fix the position of the lock (4).

5. The anti-theft electricity metering box with a shear pin anti-pry mechanism on the hinge side according to claim 4, characterized in that: The box (101) has multiple buffer components (6) hinged at both ends along its width direction, and a movable plate (103) is hinged at the end of the buffer component (6) away from the box (101).

6. The anti-theft electricity metering box with a shear pin anti-pry mechanism on the hinge side according to claim 5, characterized in that: The cabinet (101) has pressure plates (104) movably arranged on both sides along the height direction. A spring-loaded column (105) for resetting the pressure plate (104) is connected between the pressure plate (104) and the cabinet (101). The cabinet door (102) abuts against the edge of the pressure plate (104).

7. The anti-theft electricity metering box with a shear pin anti-pry mechanism on the hinge side according to claim 5, characterized in that: The buffer assembly (6) includes a column (601) for connecting protection, and a connecting column (602) is slidably provided inside the column (601). The two ends of the connecting column (602) distributed along the length direction are respectively hinged to the box (101) and the movable plate (103).

8. The anti-theft electricity metering box with a shear pin anti-pry mechanism on the hinge side according to claim 7, characterized in that: The column (601) has a sliding cavity (6011) inside. A connecting plate (604) is connected to the connecting column (602). The connecting plate (604) is slidably connected to the sliding cavity (6011). Both ends of the connecting plate (604) are respectively connected to elastic columns (603). The end of the elastic column (603) away from the connecting plate (604) is connected to the cavity wall of the sliding cavity (6011).

9. An anti-theft electricity metering box with a shear pin anti-pry mechanism on the hinge side according to claim 6, characterized in that: A buffer strip (1031) is connected between the movable plate (103) and the pressure plate (104).

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