Electricity meter with anti-theft function
By introducing multiple identification alarm components and anti-tampering components into the electricity meter, the problem of circuit tampering caused by forced disassembly by electricity thieves is solved, achieving rapid alarm and anti-theft effects and reducing the cost of manual inspection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 武汉阿迪克电子股份有限公司
- Filing Date
- 2025-07-10
- Publication Date
- 2026-07-07
AI Technical Summary
Existing anti-theft electricity meters may allow thieves to forcibly dismantle the meter after the alarm is triggered, resulting in tampering with the internal circuitry. Furthermore, the alarm device cannot quickly identify abnormal electricity usage during the initial dismantling phase, making it impossible for staff to respond in a timely manner.
It employs multiple identification alarm components and anti-disassembly components, including a rotating rod, a toggle rod, a conductive block, a spring, an isolation block, a sensor, a pressure sensor, and an electromagnet. The rotating rod drives the toggle rod to move away from the isolation block, causing the conductive block to come into contact and trigger an alarm. The sensor detects the housing displacement and triggers an alarm. The electromagnet prevents forced disassembly. It is powered by a wireless transceiver and a battery.
It enables multi-point identification and rapid alarm of dismantling behavior, prevents forced dismantling, reduces the cost of manual inspection, and improves the security and anti-theft of electricity meters.
Smart Images
Figure CN224471744U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of electricity meter technology, and in particular to an anti-theft electricity meter. Background Technology
[0002] Electricity meters are the core devices for measuring electricity consumption and are widely used in industrial, commercial, and residential electricity use scenarios. They enable electricity billing by accurately recording current, voltage, and power. Anti-theft electricity meters, on the other hand, are specialized devices that integrate anti-theft technology into their basic metering functions. Their core function is to monitor abnormal electricity consumption behavior in real time and block electricity theft through a dual mechanism of physical protection and intelligent alarms, thus protecting the rights and interests of power supply companies. These types of meters have irreplaceable value in areas with high rates of electricity theft, reducing both electricity loss and the cost of manual inspection.
[0003] In the existing technology, anti-theft electricity meters are usually composed of two parts: the outer casing is fixed to the base with bolts and one-time locks to prevent disassembly; the alarm device consists of an alarm and a wireless communication module. When forced disassembly is carried out, the main control board can drive the alarm to issue a local warning and send location information to a remote platform.
[0004] Regarding the aforementioned technologies, since thieves may continue to forcibly remove the bolts after the alarm is triggered, and if the electricity meter casing is removed before staff arrives, the internal circuitry may be tampered with, causing losses; in addition, the alarm triggering conditions may not be adequately covered, and the current alarm device can only identify forced disassembly, and cannot provide rapid feedback in the initial disassembly stage, resulting in staff not being able to respond in a timely manner, so improvements are needed. Utility Model Content
[0005] In order to identify and alarm on multiple disassembly attempts and to prevent forced disassembly of the electricity meter, this application provides an anti-theft electricity meter.
[0006] The anti-theft electricity meter provided in this application adopts the following technical solution:
[0007] An anti-theft electricity meter includes a housing, an upper cover, and a lower cover. The upper cover is hinged to the housing via a hinge shaft. The lower cover is bolted to the housing. Screws are rotatably mounted at the four corners of the housing and at the end of the upper cover away from the hinge shaft. An alarm component is provided on the housing for identifying and triggering alarms at multiple points of disassembly. An anti-disassembly component is provided on the screws for preventing forced disassembly.
[0008] By adopting the above technical solution, when an electricity thief disassembles the electricity meter, the alarm component in this application can identify and trigger an alarm when the thief disassembles the casing, upper cover, and lower cover, thereby achieving immediate alarm and reducing the cost of manual inspection. In addition, the anti-disassembly component in this application can also prevent electricity thieves from forcibly disassembling the screws on the casing, upper cover, and lower cover, thereby preventing electricity thieves from tampering with the wiring after forcibly disassembling the electricity meter, improving the security of the electricity meter, and protecting the rights and interests of users and enterprises.
[0009] Optionally, the alarm assembly includes a rotating rod, a toggle lever, an alarm, a conductive block, a mounting frame, a spring, an isolation block, and a sensor. The rotating rod is rotatably mounted on the upper cover and the housing. The alarm is disposed on the inner side wall of the housing. The mounting frame is bolted into the housing. Two sets of conductive blocks are provided, and both sets of conductive blocks are movably disposed within the mounting frame. Two sets of springs are provided, with both ends of the springs connected to the mounting frame and the conductive blocks respectively, and the initial state of the springs is a compressed state. The isolation block is movably disposed between the two sets of conductive blocks. The toggle lever is disposed on the rotating rod and can move the isolation block away from the two sets of conductive blocks. The sensor is disposed on the housing and is used to sense the disassembly of the lower cover and the housing.
[0010] By adopting the above technical solution, the rotating rod in this application has the same shape as the screw, and its installation position can mislead thieves into thinking it is an installation structure. When the electricity thief rotates the rotating rod, the rotating rod can drive the actuating rod to rotate. The rotation of the actuating rod can move the isolation block away from the two sets of conductive blocks. At this time, the two sets of conductive blocks approach each other and abut against each other in the installation frame under the action of the two sets of springs. Only after abutting against each other can the alarm be powered on and sound an alarm, thereby realizing the identification and alarm of the electricity thief's dismantling behavior, reducing the cost of manual inspection, and improving the identification rate of dismantling behavior.
[0011] Optionally, the sensing element includes a push rod and a pressure sensor. The pressure sensor is disposed on the inner side wall of the housing and is electrically connected to the alarm. Two sets of push rods are provided, which are disposed on the inner bottom wall of the lower cover and the inner side wall of the housing. The ends of the two sets of push rods away from the lower cover and away from the housing are both in contact with the pressure sensor.
[0012] By adopting the above technical solution, when an electricity thief forcibly disassembles the casing and lower cover, the casing and lower cover will shift. This shift will cause the top rod to shift, and the shift of the top rod will cause the sensing value of the pressure sensor to change. Since the pressure sensor is electrically connected to the alarm, the pressure sensor can trigger the alarm after the sensing value changes. This enables multiple identifications of disassembly and alarms, thus improving the anti-theft capability of the electricity meter.
[0013] Optionally, the anti-disassembly component includes a locking rod, a locking groove, and an electromagnet. The locking groove is formed on the screw, and the locking rod is raised and lowered within the locking groove. The housing has a movable groove for raising and lowering the locking rod. The electromagnet is set on the inner side wall of the housing and is used to raise and lower the locking rod. The electromagnet is equipped with a handheld controller for switching power on and off.
[0014] By adopting the above technical solution, when electricity thieves continue to forcibly dismantle the electricity meter, the electromagnet is de-energized, and the locking rod is located in the locking groove and lifting groove under the action of gravity. The screw cannot rotate under the action of the locking rod, locking groove, and lifting groove, so the electricity thief cannot turn the screw to unlock it, thus preventing the electricity thief from forcibly dismantling the electricity meter and improving the security and anti-theft properties of the electricity meter. When maintenance is required, the electromagnet can be controlled by a handheld controller. After the electromagnet is energized, the locking rod can be attracted to the electromagnet. At this time, the locking rod is completely located in the lifting groove, and the staff can turn the screw to dismantle the electricity meter, thus preventing the electricity thief from forcibly dismantling it while facilitating maintenance by the staff.
[0015] Optionally, a wireless transceiver is provided on the inner wall of the housing, and the wireless transceiver is electrically connected to the alarm.
[0016] By adopting the above technical solution, when the alarm is triggered, the wireless transceiver can transmit the signal to the staff immediately, so that the staff can deal with it immediately. In addition, the staff can also remotely turn off the alarm through the wireless transceiver to prevent the alarm from continuing to sound due to accidental activation by the staff.
[0017] Optionally, a battery is provided on the inner wall of the housing.
[0018] By adopting the above technical solution, the battery can provide independent power to the alarm, pressure sensor, electromagnet and wireless transceiver, thereby preventing the alarm, pressure sensor, electromagnet and wireless transceiver from failing after the power line is cut off, and is immune to damage by strong magnetic field theft methods.
[0019] Optionally, both the screw and the rotating rod have anti-theft grooves on their end faces away from the housing to prevent unlocking.
[0020] By adopting the above technical solution, the anti-theft groove can prevent electricity thieves from directly rotating the bolts and rotating rods, thereby protecting the electricity meter and increasing the difficulty for electricity thieves to dismantle it.
[0021] Optionally, a limiting ring is welded to the rotating rod, and a limiting groove is provided on the housing for limiting the limiting ring, and the limiting ring rotates within the limiting groove.
[0022] By adopting the above technical solution, the limiting groove allows the rotating rod and the limiting ring to rotate, but it cannot allow the rotating rod and the limiting ring to move horizontally, thereby preventing electricity thieves from damaging the alarm device and causing the alarm to fail to trigger.
[0023] In summary, this application includes at least one of the following beneficial technical effects:
[0024] 1. The alarm component in this application can identify and alarm on multiple disassembly attempts. Since the rotating rod in this application has the same shape as a screw and is rotatably mounted on the upper cover and housing, it can mislead thieves into thinking it is an installation structure. When the electricity thief rotates the rotating rod, the rotating rod can drive the actuating rod to rotate. The rotation of the actuating rod can move the isolation block away from the two sets of conductive blocks. At this time, the two sets of conductive blocks approach each other and abut against each other in the mounting frame under the action of two sets of springs. Only after abutting against each other can the alarm be powered on and alarm be sounded, thereby realizing the identification and alarm on the disassembly attempts of the electricity thief, reducing the cost of manual inspection and improving the anti-theft performance of the electricity meter.
[0025] 2. The sensing element in this application can detect the disassembly of the housing and the lower cover. When the electricity thief forcibly disassembles the housing and the lower cover, the housing and the lower cover will shift. The shift of the housing and the lower cover will cause the top rod to shift. The shift of the top rod will cause the sensing value of the pressure sensor to change. Since the pressure sensor is electrically connected to the alarm, the pressure sensor can trigger the alarm after the sensing value changes. This enables multiple identifications of disassembly and alarms, improving the anti-theft performance of the electricity meter.
[0026] 3. The anti-disassembly component in this application can prevent the forced disassembly of the electricity meter. When an electricity thief forcibly disassembles the electricity meter, the electromagnet is de-energized, and the locking rod is located in the locking groove and lifting groove under the action of gravity. The screw cannot rotate under the action of the locking rod, locking groove, and lifting groove, so the electricity thief cannot turn the screw to unlock it, thereby preventing the electricity thief from forcibly disassembling the electricity meter and improving the security and anti-theft properties of the electricity meter. When the staff needs to perform maintenance, the electromagnet can be controlled by a handheld controller. After the electromagnet is energized, the locking rod can be attracted to the electromagnet. At this time, the locking rod is completely located in the lifting groove, and the staff can turn the screw to disassemble the electricity meter, thereby preventing the electricity thief from forcibly disassembling it while facilitating the staff to perform maintenance. Attached Figure Description
[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0028] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;
[0029] Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure;
[0030] Figure 3 yes Figure 1 Another cross-sectional structural diagram;
[0031] Figure 4 This is a cross-sectional schematic diagram of a portion of the structure;
[0032] Figure 5 yes Figure 2 An enlarged schematic diagram of part A in the middle;
[0033] Figure 6 yes Figure 4 Enlarged schematic diagram of part B.
[0034] Reference numerals: 1. Housing; 11. Upper cover; 12. Lower cover; 13. Screw; 14. Limiting groove; 2. Alarm assembly; 21. Rotating rod; 211. Limiting ring; 22. Actuating rod; 23. Alarm; 24. Conductive block; 25. Mounting frame; 26. Spring; 27. Isolating block; 28. Top rod; 29. Pressure sensor; 3. Anti-disassembly assembly; 31. Locking rod; 32. Locking groove; 33. Electromagnet; 34. Movable groove; 4. Wireless transceiver; 5. Battery; 6. Anti-theft groove. Detailed Implementation
[0035] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.
[0036] This application discloses an anti-theft electricity meter, referring to... Figure 1 , Figure 2 and Figure 5 The anti-theft electricity meter includes a housing 1, an upper cover 11 and a lower cover 12. The upper cover 11 is hinged to the housing 1 via a hinge shaft. The lower cover 12 is bolted to the housing 1. Screws 13 are rotatably installed at the four corners of the housing 1 and at the end of the upper cover 11 away from the hinge shaft. An alarm component 2 is installed on the housing 1, and an anti-disassembly component 3 is installed on the screws 13.
[0037] When an electricity thief dismantles the meter, the alarm component 2 in this embodiment can identify and trigger an alarm when the thief dismantles the housing 1, upper cover 11, and lower cover 12, thereby enabling immediate alarm and reducing the cost of manual inspection. In addition, the anti-disassembly component 3 in this embodiment can also prevent the electricity thief from forcibly dismantling the screws 13 on the housing 1, upper cover 11, and lower cover 12, thereby preventing the electricity thief from tampering with the wiring after forcibly dismantling the electricity meter, improving the security of the electricity meter, and protecting the rights and interests of users and enterprises.
[0038] Reference Figure 2 , Figure 3 and Figure 5 When an electricity thief disassembles the electricity meter, the disassembly behavior needs to be identified and an alarm needs to be triggered. Therefore, the alarm component 2 in this embodiment includes a rotating rod 21, a toggle rod 22, an alarm 23, a conductive block 24, a mounting frame 25, a spring 26, an isolation block 27, and a sensor. The rotating rod 21 is rotatably mounted on the upper cover 11 and the housing 1. The alarm 23 is fixedly mounted on the inner side wall of the housing 1. The mounting frame 25 is bolted inside the housing 1. Two sets of conductive blocks 24 are provided, and both sets of conductive blocks 24 are movably mounted inside the mounting frame 25. Two sets of springs 26 are provided, and the two ends of the springs 26 are respectively connected to the mounting frame 25 and the conductive blocks 24. The initial state of the springs 26 is a compressed state. The isolation block 27 is movably mounted between the two sets of conductive blocks 24. The toggle rod 22 is fixedly connected to the rotating rod 21 and can move the isolation block 27 away from the two sets of conductive blocks 24. The sensor is mounted on the housing 1.
[0039] In this embodiment, the rotating rod 21 has the same shape as the screw 13, and its installation position can mislead thieves into thinking it is an installation structure. When the electricity thief rotates the rotating rod 21, the rotating rod 21 can drive the actuating rod 22 to rotate. The rotation of the actuating rod 22 can move the isolation block 27 away from the two sets of conductive blocks 24. At this time, the two sets of conductive blocks 24 approach each other and abut against each other in the mounting frame 25 under the action of the two sets of springs 26. After abutting, the alarm 23 can be powered on and alarm, thereby realizing the identification and alarm of the electricity thief's dismantling behavior, reducing the cost of manual inspection and improving the identification rate of dismantling behavior. In addition, the alarm 23 in this embodiment also has a sound alarm function and a location transmission function. The sound alarm function can drive away the electricity thief through voice prompts, and the location transmission function can enable staff to accurately locate the position of the electricity meter and improve work efficiency. In this embodiment, a connecting rope is fixedly connected to the isolation block 27, and the other end of the connecting rope is fixedly connected to the mounting frame 25.
[0040] Reference Figure 3 In order to identify disassembly behavior at multiple points, the sensing element in this embodiment includes a push rod 28 and a pressure sensor 29. The pressure sensor 29 is fixedly installed on the inner side wall of the housing 1 and is electrically connected to the alarm 23. There are two sets of push rods 28, which are fixedly installed on the inner bottom wall of the lower cover 12 and the inner side wall of the housing 1. The ends of the two sets of push rods 28 away from the lower cover 12 and away from the housing 1 are both in contact with the pressure sensor 29.
[0041] When an electricity thief forcibly disassembles the housing 1 and the lower cover 12, the housing 1 and the lower cover 12 will shift. This shift will cause the top rod 28 to shift as well. The shift of the top rod 28 will cause the sensing value of the pressure sensor 29 to change. Since the pressure sensor 29 is electrically connected to the alarm 23, the pressure sensor 29 can trigger the alarm 23 to sound an alarm after the sensing value changes. This enables multiple identifications of disassembly and alarms, improving the anti-theft capability of the electricity meter.
[0042] Reference Figure 2 and Figure 3 When a power thief forcibly dismantles the electricity meter, the anti-dismantling component 3 in this embodiment can prevent the power thief from dismantling the meter. It includes a locking rod 31, a locking groove 32, and an electromagnet 33. The locking groove 32 is opened on the screw 13, and the locking rod 31 is lifted and installed in the locking groove 32. The housing 1 is provided with a movable groove 34, and the electromagnet 33 is set on the inner side wall of the housing 1. The electromagnet 33 is equipped with a handheld controller.
[0043] When an electricity thief forcibly disassembles the electricity meter, the electromagnet 33 is de-energized, and the locking rod 31 is located in the locking groove 32 and the lifting groove under the action of gravity. The screw 13 cannot rotate under the action of the locking rod 31, the locking groove 32, and the lifting groove. Therefore, the electricity thief cannot rotate the screw 13 to unlock it, thus preventing the electricity thief from forcibly disassembling the electricity meter and improving the security and anti-theft of the electricity meter. When the staff needs to perform maintenance, the electromagnet 33 can be controlled by a handheld controller. After the electromagnet 33 is energized, the locking rod 31 can be attracted to the electromagnet 33. At this time, the locking rod 31 is completely located in the lifting groove, and the staff can rotate the screw 13 to disassemble the electricity meter. This not only prevents the electricity thief from forcibly disassembling the meter, but also facilitates the staff to perform maintenance. In this embodiment, anti-disassembly components 3 are installed at the bolt connections of the upper screw 13 and the lower cover 12, which can achieve multi-directional protection for the electricity meter.
[0044] Reference Figure 2 and Figure 5 After the alarm 23 is triggered, it needs to send the information to the staff in a timely manner. Therefore, a wireless transceiver 4 is fixedly installed on the inner wall of the housing 1 in this embodiment. The wireless transceiver 4 is electrically connected to the alarm 23. When the alarm 23 is triggered, the wireless transceiver 4 can transmit the signal to the staff immediately, so that the staff can deal with it immediately. In addition, the staff can also remotely turn off the alarm 23 through the wireless transceiver 4 to prevent the alarm 23 from continuing to alarm due to accidental activation by the staff.
[0045] Reference Figure 2 and Figure 5 In order to provide independent power to the alarm 23, pressure sensor 29, electromagnet 33 and wireless transceiver 4, a storage battery 5 is fixedly installed on the inner wall of the housing 1 in this embodiment. The storage battery 5 is electrically connected to the alarm 23, pressure sensor 29, electromagnet 33 and wireless transceiver 4. Independent power supply can prevent the alarm 23, pressure sensor 29, electromagnet 33 and wireless transceiver 4 from failing after the power is cut off, and can also be immune to damage by strong magnetic field theft.
[0046] Reference Figure 1 and Figure 4 When a thief uses a common disassembly tool to disassemble the meter, the anti-theft groove 6 in this embodiment can prevent direct rotation and unlocking. The anti-theft groove 6 is provided on the end face of the screw 13 and the rotating rod 21 away from the housing 1. The anti-theft groove 6 can protect the electricity meter and increase the difficulty of disassembly by the thief. The anti-theft groove 6 in this embodiment is a triangular groove, which is a preferred embodiment. It can also be provided as a groove of other shapes.
[0047] Reference Figure 6To prevent electricity thieves from damaging the alarm device, a limiting ring 211 is welded to the rotating rod 21 in this embodiment, and a limiting groove 14 is opened on the housing 1. The limiting ring 211 rotates within the limiting groove 14. The limiting groove 14 allows the rotating rod 21 and the limiting ring 211 to rotate, but it does not allow the rotating rod 21 and the limiting ring 211 to move horizontally, thereby preventing electricity thieves from damaging the alarm device and causing the alarm 23 to fail to trigger.
[0048] The implementation principle of an anti-theft electricity meter according to an embodiment of this application is as follows:
[0049] Since the rotating rod 21 has the same shape as the screw 13 and is rotatably mounted on the upper cover 11 and the housing 1, it can be mistaken by the thief as an installation structure. When the thief rotates the rotating rod 21, the rotating rod 21 can drive the actuating rod 22 to rotate. The rotation of the actuating rod 22 can move the isolation block 27 away from the two sets of conductive blocks 24. At this time, the two sets of conductive blocks 24 approach each other and abut against each other in the mounting frame 25 under the action of the two sets of springs 26. After abutting, the alarm 23 can be powered on and alarm, thereby realizing the identification and alarm of the thief's dismantling behavior, reducing the cost of manual inspection and improving the identification rate of dismantling behavior.
[0050] When an electricity thief forcibly disassembles the housing 1 and the lower cover 12, the housing 1 and the lower cover 12 will shift. The shift of the housing 1 and the lower cover 12 will cause the top rod 28 to shift. The shift of the top rod 28 will cause the sensing value of the pressure sensor 29 to change. Since the pressure sensor 29 is electrically connected to the alarm 23, the pressure sensor 29 can trigger the alarm 23 to sound an alarm after the sensing value changes. This enables multiple identifications of disassembly behavior and alarms, improving the anti-theft capability of the electricity meter.
[0051] When an electricity thief forcibly disassembles the electricity meter, the electromagnet 33 is de-energized. The locking rod 31, under the influence of gravity, is positioned within the locking groove 32 and the lifting groove. The screw 13 cannot rotate due to the combined forces of the locking rod 31, locking groove 32, and lifting groove. Therefore, the electricity thief cannot rotate the screw 13 to unlock the meter, thus preventing forced disassembly and improving the meter's security and anti-theft capabilities. When maintenance is required, the electromagnet 33 can be controlled via a handheld controller. Once energized, the locking rod 31 is attracted to the electromagnet 33, placing it completely within the lifting groove. The maintenance personnel can then rotate the screw 13 to disassemble the electricity meter, thus preventing forced disassembly by electricity thieves while facilitating maintenance by the staff.
[0052] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0053] The above are all optional embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A burglarproof electricity meter, comprising a housing (1), an upper cover (11), and a lower cover (12), characterized in that: The upper cover (11) is hinged to the housing (1) via a hinge shaft. The lower cover (12) is bolted to the housing (1). Screws (13) are rotatably installed at the four corners of the housing (1) and at the end of the upper cover (11) away from the hinge shaft. An alarm component (2) is provided on the housing (1) for identifying disassembly behavior in multiple locations and triggering an alarm. An anti-disassembly component (3) is provided on the screws (13) for preventing forced disassembly.
2. The anti-theft electricity meter according to claim 1, characterized in that: The alarm assembly (2) includes a rotating rod (21), a toggle rod (22), an alarm (23), a conductive block (24), a mounting frame (25), a spring (26), an isolation block (27), and a sensing element. The rotating rod (21) is rotatably mounted on the upper cover (11) and the housing (1). The alarm (23) is disposed on the inner side wall of the housing (1). The mounting frame (25) is bolted to the housing (1). Two sets of conductive blocks (24) are provided, and both sets of conductive blocks (24) are movably disposed within the mounting frame (25). Two sets of springs (26) are provided. The two ends of the springs (26) are connected to the mounting frame (25) and the conductive block (24) respectively. The initial state of the springs (26) is the compressed state. The isolation block (27) is movably disposed between the two sets of conductive blocks (24). The toggle rod (22) is disposed on the rotating rod (21) and can move the isolation block (27) between the two sets of conductive blocks (24). The sensing element is disposed on the housing (1) and is used to sense the disassembly of the lower cover (12) and the housing (1).
3. The anti-theft electricity meter according to claim 2, characterized in that: The sensing element includes a push rod (28) and a pressure sensor (29). The pressure sensor (29) is disposed on the inner side wall of the housing (1) and is electrically connected to the alarm (23). There are two sets of push rods (28). The two sets of push rods (28) are disposed on the inner bottom wall of the lower cover (12) and the inner side wall of the housing (1). The ends of the two sets of push rods (28) away from the lower cover (12) and away from the housing (1) are both in contact with the pressure sensor (29).
4. The anti-theft electricity meter according to claim 1, characterized in that: The anti-disassembly component (3) includes a locking rod (31), a locking groove (32), and an electromagnet (33). The locking groove (32) is opened on the screw (13). The locking rod (31) is raised and lowered in the locking groove (32). The housing (1) is provided with a movable groove (34) for raising and lowering the locking rod (31). The electromagnet (33) is set on the inner side wall of the housing (1) and is used to raise and lower the locking rod (31). The electromagnet (33) is equipped with a handheld controller for switching power on and off.
5. The anti-theft electricity meter according to claim 2, characterized in that: A wireless transceiver (4) is provided on the inner wall of the housing (1), and the wireless transceiver (4) is electrically connected to the alarm (23).
6. The anti-theft electricity meter according to claim 1, characterized in that: A storage battery (5) is provided on the inner wall of the housing (1).
7. The anti-theft electricity meter according to claim 2, characterized in that: Both the screw (13) and the rotating rod (21) have anti-theft grooves (6) on their ends away from the housing (1) to prevent unlocking.
8. The anti-theft electricity meter according to claim 2, characterized in that: A limiting ring (211) is welded to the rotating rod (21), and a limiting groove (14) is provided on the housing (1) for limiting the limiting ring (211). The limiting ring (211) rotates in the limiting groove (14).