Electricity larceny prevention alarm electric energy metering box

Abstract

The utility model relates to an electric energy metering box technical field, concretely relates to a kind of electricity larceny prevention alarm electric energy metering box, including shell and the cover plate of the shell one end rotation connection, shell upper portion and lower portion are separately provided with crossbeam, cover plate is equipped with mechanical locking assembly;Mechanical locking assembly includes lock cylinder, gear driven by the lock cylinder, rack engaged with the gear, and locking rod linked with rack by connecting rod;Locking rod vertically penetrates shell and extends to upper and lower crossbeam;Crossbeam is equipped with alarm mechanism;When key is inserted into lock cylinder rotation, drive locking rod to move to contact position with alarm mechanism, make alarm mechanism be in disconnected state;When external force destroys cover plate, locking rod is separated from alarm mechanism, triggers audible light alarm and uploads to power grid background, and the mechanical locking assembly of lock cylinder, gear, rack and locking rod is formed, the rigid lock of cover plate and shell is realized, locking rod vertically penetrates to upper and lower crossbeam, substantially improve the anti-damage capacity of cover plate.

Description

Technical Field

[0001] This utility model relates to the technical field of electricity metering boxes, specifically to an anti-theft alarm electricity metering box. Background Technology

[0002] In the operation of power systems, electricity metering boxes are key equipment for electricity metering and management. Their safe and stable operation directly affects the economic benefits of power companies and the normal order of the power grid. However, electricity theft has always been a problem plaguing the power industry. Criminals steal electricity by prying open covers, damaging locks, and short-circuiting lines. This not only causes the loss of power resources but may also lead to safety hazards such as short circuits and equipment damage due to illegal operations, and even cause safety accidents such as electric shock and fire.

[0003] While existing anti-theft electricity metering boxes possess certain protective functions, their reliability in terms of mechanical locking and alarm linkage remains insufficient. Some metering boxes have simple lock structures, making them susceptible to forced entry or technical opening. Furthermore, traditional alarm mechanisms rely heavily on electronic sensors, which can easily lose their alarm function in the event of line interruptions or power failures, leading to the failure to promptly detect and stop electricity theft. In addition, some alarm devices suffer from response delays and high false alarm rates, making it difficult to accurately identify illegal opening activities and posing challenges to subsequent investigations by power management departments.

[0004] Therefore, there is an urgent need for an anti-theft alarm power metering box to improve the shortcomings of existing technologies. Utility Model Content

[0005] The purpose of this utility model is to provide an anti-theft alarm energy metering box. Through a mechanical locking assembly consisting of a lock cylinder, gears, a rack, and a locking rod, the cover plate and the housing are rigidly locked together. The locking rod extends vertically through the upper and lower crossbeams, significantly improving the cover plate's resistance to damage, thereby solving the problems mentioned in the background art, namely:

[0006] While existing anti-theft electricity metering boxes possess certain protective functions, they still have shortcomings in the reliability of mechanical locking and alarm linkage. Some metering boxes have simple lock structures, making them easy to be forcibly damaged or technically opened; at the same time, traditional alarm mechanisms mostly rely on electronic sensing elements, which can easily lose their alarm function in the event of line interruption or power failure, resulting in electricity theft not being detected and stopped in a timely manner.

[0007] To achieve the above objectives, this utility model provides an anti-theft alarm energy metering box, including a shell and a cover plate rotatably connected to one end of the shell. The upper and lower parts of the shell are respectively provided with crossbeams, and the cover plate is provided with a mechanical locking assembly.

[0008] The mechanical locking assembly includes a lock cylinder, a gear driven by the lock cylinder, a rack meshing with the gear, and a locking rod that is linked to the rack via a connecting rod.

[0009] The locking rod penetrates the housing vertically and extends to the upper and lower crossbeams;

[0010] An alarm mechanism is installed on the crossbeam;

[0011] When the key is inserted into the lock cylinder and turned, it drives the locking lever to move to the position where it contacts the alarm mechanism, thus disengaging the alarm mechanism.

[0012] When the cover plate is damaged by external force, the locking rod disengages from the alarm mechanism, triggering an audible and visual alarm and uploading it to the power grid backend.

[0013] In the above technical solution, when the key is inserted into the lock cylinder of the cover plate and turned, the lock cylinder drives the gear to rotate, and the rack meshing with the gear moves accordingly. Through the connecting rod, it drives the locking rod to move synchronously, so that the locking rod vertically penetrates the housing and extends to the upper and lower crossbeams, contacting the alarm mechanism on the crossbeams. At this time, the alarm mechanism is in the disconnected state. When the cover plate is damaged by external force, the locking rod will disengage from the alarm mechanism, thereby triggering the alarm mechanism to activate the audible and visual alarm, and at the same time uploading the alarm information to the power grid backend.

[0014] Based on this, the pressure block is connected to the side wall of the crossbeam via a rotating shaft. One end of the pressure block is in contact with the locking rod, and the other end is connected to a return spring. The spring force of the return spring forces the pressure block to always be in contact with the locking rod. When the locking rod moves, the pressure block rotates around the rotating shaft along with the locking rod. When the locking rod disengages, the pressure block resets under the action of the return spring, triggering the connected alarm main body to work.

[0015] In another technical solution, the surface of the locking rod is covered with an insulating layer, with only the two ends exposed to form electrical contact points. The alarm mechanism has a built-in wireless communication module that simultaneously sends location information and a timestamp to the power grid backend when triggered. The lock cylinder is made of drill-resistant alloy material, and its keyhole has a conductive probe embedded in its inner wall. When a non-matching key is detected, the backup alarm circuit is activated.

[0016] In this technical solution, the surface of the locking rod is covered with an insulating layer, with only the two ends exposed to form electrical contact points to ensure safe circuit contact; when the alarm mechanism is triggered, the built-in wireless communication module will simultaneously send location information and timestamp to the power grid backend; the lock cylinder is made of drill-proof alloy material, and when the conductive probe on the inner wall of its keyhole detects the insertion of an unmatched key, it will activate the backup alarm circuit.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This anti-theft electricity metering box uses a mechanical locking assembly consisting of a lock cylinder, gears, racks, and a locking rod to achieve a rigid lock between the cover and the housing. The locking rod extends vertically through the upper and lower crossbeams, significantly improving the cover's resistance to damage. Compared to traditional single-latch structures, this mechanical linkage design effectively resists illegal opening attempts such as forced entry and prying, reducing the risk of electricity theft from a physical structural perspective.

[0019] The locking lever is in direct contact with the alarm mechanism on the crossbeam. When external force damages the cover plate and causes the locking lever to disengage, the alarm mechanism immediately activates an audible and visual alarm via mechanical triggering. This design does not rely on an external power supply or electronic sensing components, avoiding alarm failures caused by circuit faults, power outages, etc., and ensuring a rapid response to unauthorized operations under any circumstances. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the embodiment;

[0021] Figure 2 This is a schematic diagram of the unfolded structure of the shell and cover plate in an embodiment.

[0022] Figure 3 This is a schematic diagram of a partial cross-sectional structure of the shell in an embodiment;

[0023] Figure 4 This is a schematic diagram of the mechanical locking assembly after locking, as shown in the embodiment.

[0024] Figure 5 This is a partial structural diagram of the mechanical locking assembly in an embodiment;

[0025] Figure 6 This is a partial structural diagram of the alarm mechanism in an embodiment.

[0026] The meanings of the labels in the diagram are as follows:

[0027] 100. Shell; 110. Cover plate; 120. Crossbeam;

[0028] 200. Mechanical locking assembly; 210. Lock cylinder; 220. Gear; 230. Rack; 240. Locking rod;

[0029] 300. Alarm mechanism; 310. Pressure block; 320. Top rod; 330. Spring; 340. Alarm device. Detailed Implementation

[0030] 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.

[0031] While existing anti-theft electricity metering boxes offer some protection, their reliability in terms of mechanical locking and alarm linkage remains insufficient. Traditional alarm mechanisms rely heavily on electronic sensors, which are prone to malfunction in the event of line interruptions or power failures, making it difficult to detect and stop electricity theft in a timely manner. Please refer to [link to relevant documentation]. Figures 1-6 As shown, this embodiment provides an anti-theft alarm energy metering box, including a housing 100 and a cover plate 110 rotatably connected to one end of the housing 100. The upper and lower parts of the housing 100 are respectively provided with crossbeams 120, and the cover plate 110 is provided with a mechanical locking assembly 200.

[0032] The mechanical locking assembly 200 includes a lock cylinder 210, a gear 220 driven by the lock cylinder 210, a rack 230 meshing with the gear 220, and a locking rod 240 linked to the rack 230 via a connecting rod.

[0033] The locking rod 240 vertically penetrates the housing 100 and extends to the upper and lower crossbeams 120;

[0034] An alarm mechanism 300 is installed on the crossbeam 120;

[0035] When the key is inserted into the lock cylinder 210 and turned, the locking lever 240 is driven to move to the position of contact with the alarm mechanism 300, so that the alarm mechanism 300 is in the disengaged state.

[0036] When the cover plate 110 is damaged by external force, the locking rod 240 disengages from the alarm mechanism 300, triggering an audible and visual alarm and uploading it to the power grid backend.

[0037] During implementation, the cover plate 110 is locked to the housing 100 by the mechanical locking assembly 200. When the key is inserted into the lock cylinder 210 and turned, it drives the gear 220 and rack 230 to move together, which in turn drives the locking rod 240 to move through the connecting rod. The locking rod 240 vertically penetrates the housing 100 and extends to the upper and lower crossbeams 120, where it contacts the alarm mechanism 300 on the crossbeams 120. At this time, the alarm mechanism 300 is in the disconnected state. When the cover plate 110 is damaged by external force, the locking rod 240 will disengage from the alarm mechanism 300, thereby triggering an audible and visual alarm, and the alarm information will be uploaded to the power grid backend.

[0038] See Figures 2-4As shown, when the key is inserted into the lock cylinder 210 and rotated, it drives the gear 220 to rotate, which in turn drives the rack 230 that meshes with it to move. The rack 230 is linked to the locking rod 240 through a connecting rod. When the locking rod 240 contacts the top rod 320 at one end of the pressure block 310 in the alarm mechanism 300 on the crossbeam 120, the return spring 330 at the other end of the pressure block 310 is under force, and the main body of the alarm 340 is not triggered. When the external force damages the cover plate 110 and causes the locking rod 240 to disengage from the top rod 320, the pressure block 310 rotates around the pivot under the action of the return spring 330, and the spring 330 drives the connected main body of the alarm 340 to start working.

[0039] Figure 4 When the lock cylinder 210 is rotated, it will drive the gear 220 to rotate synchronously. The gear 220 drives the rack 230 to move through meshing. The rack 230 then drives the locking rod 240 to insert into the upper and lower crossbeams 120, so that the upper and lower locking rods 240 and the upper and lower crossbeams 120 form a mutually perpendicular state, thereby firmly locking the cover plate 110 onto the housing 100.

[0040] Additionally, see Figure 5 As shown, when the mechanical locking assembly 200 on the cover plate 110 is working, the key inserted into the lock cylinder 210 and rotated will drive the gear 220 to rotate. The gear 220 drives the rack 230 that meshes with it to move. The rack 230 is linked to the locking rod 240 through the connecting rod, so that the locking rod 240 vertically penetrates the housing 100 and extends to the upper and lower crossbeams 120, thereby realizing the locking control of the cover plate 110 and the housing 100.

[0041] The built-in wireless communication module of the alarm mechanism 300 will simultaneously send location information and timestamp to the power grid backend when the alarm is triggered; the lock cylinder 210 is made of anti-drill alloy material, and the conductive probe on the inner wall of its keyhole will activate the backup alarm circuit when it detects the insertion of an unmatched key.

[0042] See Figure 6 As shown, in the alarm mechanism 300, the pressure block 310 is connected to the side wall of the crossbeam 120 via a rotating shaft. One end of the pressure block 320 abuts against the locking rod 240, which is covered with an insulating layer and has only its two ends exposed to form electrical contact points. The other end of the locking rod 330 always applies a spring force to force the pressure block 320 to remain in the abutting state. The end of the spring 330 is connected to the main body of the alarm 340, which is fixed to the surface of the crossbeam 120. When the locking rod 240 moves under the drive of the mechanical locking assembly 200, the pressure block 310 rotates around the rotating shaft with the movement of the pressure block 240, causing the reset spring 330 to deform. If the locking rod 240 disengages from the pressure block 320, the pressure block 310 resets under the action of the reset spring 330, triggering the main body of the alarm 340 to work.

[0043] In this embodiment, when the anti-theft alarm energy metering box is in use, firstly, when the key is inserted into the lock cylinder 210 of the mechanical locking assembly 200 of the cover plate 110 and rotated, the lock cylinder 210 drives the gear 220 to rotate, which in turn drives the rack 230 to move. The rack 230 is linked to the locking rod 240 through the connecting rod, so that the locking rod 240 vertically penetrates the housing 100 and extends to the upper and lower crossbeams 120, contacting the top rod 320 at one end of the pressure block 310 in the alarm mechanism 300. At this time, the pressure block 310 rotates around the pivot, and the return spring 330 at its other end is deformed by force, and the main body of the alarm 340 is in the open state. When the cover plate 110 is damaged by external force, the locking rod 240 disengages from the top rod 320, and the pressure block 310 is reset under the action of the return spring 330, which drives the main body of the alarm 340 connected to the spring 330 to start and emit an audible and visual alarm.

[0044] The locking rod 240 is covered with an insulating layer, with only its two ends exposed to form electrical contact points, ensuring circuit safety when in contact with the alarm mechanism 300. The wireless communication module built into the alarm mechanism 300 simultaneously sends location information and a timestamp to the power grid backend when the alarm is triggered, facilitating real-time tracking. The lock cylinder 210 is made of drill-resistant alloy; when a conductive probe on the inner wall of its keyhole detects the insertion of an unmatched key, it immediately activates the backup alarm circuit, further enhancing its anti-theft capabilities.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A power metering box with anti-theft alarm, comprising a housing (100) and a cover plate (110) rotatably connected to one end of the housing (100), wherein the upper and lower parts of the housing (100) are respectively provided with crossbeams (120), characterized in that: The cover plate (110) is provided with a mechanical locking assembly (200); The mechanical locking assembly (200) includes a lock cylinder (210), a gear (220) driven by the lock cylinder (210), a rack (230) meshing with the gear (220), and a locking rod (240) linked to the rack (230) via a connecting rod. The locking rod (240) penetrates vertically through the housing (100) and extends to the upper and lower crossbeams (120); An alarm mechanism (300) is provided on the crossbeam (120); When the key is inserted into the lock cylinder (210) and turned, the locking lever (240) is driven to move to the position of contact with the alarm mechanism (300), so that the alarm mechanism (300) is in the disengaged state; When an external force damages the cover plate (110), the locking rod (240) disengages from the alarm mechanism (300), triggering an audible and visual alarm and uploading it to the power grid backend; The alarm mechanism (300) includes a rotatable pressure block (310), one end of which is provided with a push rod (320) for contacting the locking rod (240). The pressure block (310) is connected to the side wall of the crossbeam (120) via a rotating shaft, and a return spring (330) is provided at its other end. The spring (330) forces the top rod (320) to always abut against the locking rod (240).

2. The anti-theft alarm energy metering box according to claim 1, characterized in that: The spring (330) end of the pressure block (310) is connected to the body of the alarm (340), which is fixed to the surface of the crossbeam (120).

3. The anti-theft electricity alarm energy metering box according to claim 1, characterized in that: The locking rod (240) is covered with an insulating layer, with only the two ends exposed to form electrical contact points.

4. The anti-theft electricity alarm energy metering box according to claim 1, characterized in that: The alarm mechanism (300) has a built-in wireless communication module, which simultaneously sends location information and timestamp to the power grid backend when triggered.

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