Electric energy metering box with electricity larceny prevention function

Abstract

This invention discloses an electricity metering box with anti-theft function, belonging to the field of metering box technology. It includes a box body with a door hinged to one side. The box body is equipped with a protective mechanism to protect the internal electrical components, preventing unauthorized wiring alteration, damage to the meter, or interference with metering. By setting a complex mechanical linkage locking mechanism between the door and the box body, consisting of a turntable, vertical plate, horizontal plate, rotating blocks, and a blocking plate, the simple "key or password unlocking" is upgraded to "mechanical linkage unlocking." Without authorization, an electricity thief cannot rotate the turntable, thus preventing the entire mechanism from unlocking the blocking plate. Even if the external structure of the door is forcibly damaged, it is impossible to effectively drive all the internal rotating blocks and blocking plates to work together to release the limit. This drastically increases the physical difficulty and operational complexity of illegally opening the door, effectively deterring violent opening.

Description

Technical Field

[0001] This invention relates to the field of metering box technology, and in particular to an electricity metering box with anti-theft function. Background Technology

[0002] An electricity metering box, often simply called a metering box, is a specialized enclosure or cabinet in a power system used for the centralized installation and protection of electricity metering devices (such as electricity meters, current transformers, voltage transformers, and terminals). Anti-theft technology for electricity metering boxes has been developed for many years, resulting in various basic solutions. At the physical protection level, existing technologies mainly include using high-strength, pry-resistant enclosures and doors, and adding anti-theft locks, lead seals, or electronic seals. In addition, for ease of maintenance, some solutions design the internal protective frame as a pull-out structure. These basic measures constitute the common technical features of anti-theft electricity metering boxes.

[0003] Existing protection methods are mostly "passive isolation," which means physically shielding the equipment with fixed protective plates or pull-out frames. However, the protective plates and the enclosure are usually only statically connected by screws, which creates inherent and difficult-to-eliminate assembly gaps. Electricity thieves can use specialized pry tools to break through these gaps, damage the connection structure, and then access the internal wiring terminals. Therefore, the reliability and initiative of the protection are insufficient. Summary of the Invention

[0004] The purpose of this invention is to provide an electricity metering box with anti-theft function in order to solve the problems of insufficient reliability and initiative in the protection of existing metering boxes.

[0005] To achieve the above objectives, the present invention employs the following technology: an electricity metering box with anti-theft function, comprising a box body, a door hinged to one side of the box body, and a protective mechanism mounted on the box body to protect the internal electrical components, thereby preventing unauthorized alteration of wiring, damage to the electricity meter, or interference with metering. The protective mechanism includes a mounting bracket fixedly installed inside the enclosure, electrical components mounted on the mounting bracket, a protective plate mounted on one side of the mounting bracket by screws, and a connection between the protective plate and the mounting bracket increased by clips. A turntable is rotatably connected to the enclosure door, and a fixing component is mounted on the enclosure door. The fixing component increases the difficulty of opening the enclosure door and the enclosure, thereby preventing the enclosure door from being easily opened or damaged. The enclosure is also equipped with an auxiliary component that can increase the connection between the enclosure door and the protective plate, as well as a mounting component used in conjunction with the auxiliary component.

[0006] As a further description of the above technical solution: the fixing component includes vertical plates and horizontal plates symmetrically arranged on the box door, and several rotating blocks and blocking plates are rotatably installed on the box door, with each blocking plate having a through groove.

[0007] As a further description of the above technical solution: the rotating block is rotatably installed at the corner of the vertical plate and the horizontal plate, the vertical plate and the horizontal plate are rotatably connected to the rotating block, and protrusions are fixedly installed on the vertical plate and the horizontal plate, the protrusions being located in the through groove.

[0008] As a further description of the above technical solution: a connecting plate is fixedly installed at one end of the turntable extending to the outside of the box door, the connecting plate is rotatably connected to one of the vertical plates, and a blocking frame is provided on the side of the box body near the box door, with one end of several blocking plates respectively contacting the blocking frame.

[0009] As a further description of the above technical solution: the auxiliary component includes a fixed plate fixedly installed on the vertical plate and the horizontal plate, a frame set inside the box body, several rectangular blocks fixedly installed on the frame, an upward push block slidably installed on the rectangular blocks by a slider, and a rubber pad fixedly installed on the upward push block.

[0010] As a further description of the above technical solution: the push block is slidably mounted on the rectangular block, the push block is in contact with the fixed plate, and the rubber pad is set on the side close to the protective plate.

[0011] As a further description of the above technical solution: the installation assembly includes guide frames symmetrically installed on the housing, rotating frames and baffles respectively set on the guide frames, and several cylinders fixedly installed on the frame.

[0012] As a further description of the above technical solution: the middle part of the guide frame is hollow, the rotating frame and the guide frame are rotatably connected, the cylinder is located in the middle of the guide frame, the baffle is slidably connected to the rotating frame and is located on one side of the cylinder.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: By setting up a complex mechanical linkage locking mechanism consisting of a turntable, vertical plate, horizontal plate, rotating block and blocking plate between the door and the box body, the single "key or password unlocking" is upgraded to "mechanical linkage unlocking". Without authorization, electricity thieves cannot turn the turntable, so they cannot drive the entire mechanism to release the blocking plate from locking the box body. Even if the external structure of the door is damaged by force, it is impossible to effectively drive all the internal rotating blocks and blocking plates to work together to release the limit. This greatly increases the physical difficulty and operational complexity of illegally opening the door, forming a powerful deterrent against violent opening behavior. Through the design of auxiliary components, the linkage between the locked state of the cabinet door and the pressed state of the internal protective plate is realized. When the cabinet door is closed and locked, the linkage mechanism will automatically drive the rubber pad to press the protective plate firmly from multiple directions (such as the four sides), so that it is tightly connected with the internal mounting bracket. This adds a layer of dynamic pressure from the direction of the cabinet door to the original screw fixation of the protective plate, effectively preventing electricity thieves from using tools to pry the protective plate from the gaps and damage its connection with the mounting bracket, thereby greatly improving the protection level of the internal electrical components and eliminating the possibility of damaging the metering accuracy from the internal structure. When authorized personnel need to inspect internal components, they can simply perform a rotation and pull operation to remove the entire frame along with components such as push blocks, easily accessing the protective plate and internal electrical components without disassembling complex linkage locks. This design achieves a high-strength anti-theft function without sacrificing the operability of normal maintenance, effectively reducing the daily operation and maintenance difficulty and time cost for power supply departments. Attached Figure Description

[0014] Figure 1 An overall schematic diagram provided according to an embodiment of the present invention is shown; Figure 2 An internal structural diagram of the housing provided according to an embodiment of the present invention is shown; Figure 3 The present invention provides an embodiment of the invention. Figure 2 Another perspective view; Figure 4 The diagram shows the effect after the mounting bracket and protective plate provided in the embodiment of the present invention are installed; Figure 5 This diagram shows the effect of opening the mounting bracket and protective plate provided according to an embodiment of the present invention; Figure 6 This diagram illustrates the effect of locking the cabinet door according to an embodiment of the present invention. Figure 7 A schematic diagram of a fixing component provided according to an embodiment of the present invention is shown; Figure 8 A schematic diagram of an auxiliary component provided according to an embodiment of the present invention is shown; Figure 9 The diagram shows the effect of the two push blocks being separated according to an embodiment of the present invention; Figure 10 A schematic diagram of the installation components provided according to an embodiment of the present invention is shown; Figure 11 A diagram showing the positional relationship between the protective plate and auxiliary components provided according to an embodiment of the present invention is shown.

[0015] Legend: 10. Box body; 11. Box door; 20. Protective mechanism; 21. Mounting bracket; 22. Protective plate; 23. Clip; 24. Turntable; 25. Fixing component; 251. Vertical plate; 252. Horizontal plate; 253. Rotating block; 254. Blocking plate; 255. Through slot; 26. Auxiliary components; 261. Fixing plate; 262. Frame; 263. Rectangular block; 264. Push-up block; 265. Slider; 266. Rubber pad; 267. Push-down block; 27. Installation components; 271. Guide frame; 272. Rotating frame; 273. Baffle; 274. Cylinder. Detailed Implementation

[0016] 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.

[0017] Reference Figures 1 to 11 This embodiment provides an electricity metering box with anti-theft function, including a box body 10, a box door 11 hinged to one side of the box body 10, and a protective mechanism 20 installed on the box body 10 to protect the internal electrical components, thereby preventing illegal alteration of wiring, damage to the electricity meter or interference with metering. The protective mechanism 20 includes a mounting bracket 21 fixedly installed inside the housing 10. Electrical components are mounted on the mounting bracket 21. A protective plate 22 is mounted on one side of the mounting bracket 21 by screws, and the protective plate 22 and the mounting bracket 21 are connected by a clip 23. The clip 23 is a pre-existing elastic buckle that, in conjunction with a slot on the mounting bracket 21, increases the connection between the protective plate 22 and the mounting bracket 21. When the protective plate 22 needs to be disassembled, simply unscrew the screws between the protective plate 22 and the mounting bracket 21, and then pull the protective plate 22 outward. A turntable 24 is rotatably connected to the door 11, and a pre-existing technology is also provided on the door 11. The electromagnetic lock used during the procedure allows the turntable 24 to lock itself. When the user swipes a card or enters a password, the PLC controller inside the cabinet 10 energizes the magnet in the electromagnetic lock. When energized, the magnet attracts, allowing the turntable 24 to rotate. When the power is cut off, it locks (power failure protection), and the turntable 24 is jammed, thus preventing prying. The cabinet door 11 is equipped with a fixing component 25, which increases the difficulty of opening the cabinet door 11 and the cabinet 10, thereby preventing the cabinet door 11 from being easily opened or damaged. The cabinet 10 is also equipped with an auxiliary component 26 that increases the connection between the cabinet door 11 and the protective plate 22, as well as an installation component 27 used in conjunction with the auxiliary component 26.

[0018] Reference Figures 6 to 7 Specifically, in order to effectively prevent unauthorized opening of the box, a fixing component 25 is set up. The fixing component 25 includes a vertical plate 251 and a horizontal plate 252 symmetrically arranged on the box door 11, and a number of rotating blocks 253 and blocking plates 254 are rotatably installed on the box door 11. Each blocking plate 254 is respectively connected to a through groove 255.

[0019] In more detail, the rotating block 253 is rotatably mounted at the corner of the vertical plate 251 and the horizontal plate 252, and the vertical plate 251 and the horizontal plate 252 are rotatably connected to the rotating block 253, as shown below. Figure 7 As shown, when one of the vertical plates 251 descends, the two vertical plates 251 and the horizontal plate 252 will form a circular motion through the connection of the rotating block 253. The vertical plates 251 and the horizontal plate 252 are fixedly installed with protrusions, which are located in the through groove 255. When the vertical plates 251 and the horizontal plate 252 move, they will also drive the protrusions to move. The moving protrusions can push the through groove 255, so that the blocking plate 254 can rotate.

[0020] In more detail, a connecting plate is fixedly installed at one end of the turntable 24 extending to the outside of the box door 11. When the turntable 24 rotates, it will also drive the connecting plate to rotate. The connecting plate is rotatably connected to one of the vertical plates 251. The connecting plate then drives the vertical plate 251 connected to it to rise and fall. A blocking frame is provided on the side of the box body 10 near the box door 11. One end of several blocking plates 254 is in contact with the blocking frame. When the door 11 is opened, the user swipes a card or enters a password. At this time, the PLC controller inside the cabinet 10 will energize the magnet in the electromagnetic lock. When energized, the magnet attracts, allowing the turntable 24 to rotate. Rotating the turntable 24 drives the vertical plate 251 to move through the connecting plate. Under the linkage of the rotating block 253, the four protrusions move synchronously with the vertical plate 251 and the horizontal plate 252. At this time, the vertical plate 251 and the horizontal plate 252 will form a circular motion. At this time, the protrusions squeeze the through groove 255, causing the blocking plate 254 to rotate, so that one end of the blocking plate 254 leaves the blocking frame on the cabinet 10, releasing the restriction on the door 11. Then, the door 11 can be opened normally by pulling it outward through the turntable 24. Without unlocking authority, electricity thieves cannot rotate turntable 24 or cause barrier plate 254 to rotate and detach from the barrier frame. Even if they damage the external structure of the box door 11, they cannot cause the entire set of fixing components 25 to release the limit, greatly increasing the difficulty of opening the box and thus effectively preventing illegal opening behavior.

[0021] Reference Figures 8 to 9Specifically, in order to improve the installation stability of the protective plate 22, an auxiliary component 26 is set up. The auxiliary component 26 includes a fixing plate 261 fixedly installed on the vertical plate 251 and the horizontal plate 252. When the vertical plate 251 and the horizontal plate 252 move, they will also drive the fixing plate 261 connected to them to move. The frame 262 is set inside the box 10. Several rectangular blocks 263 are fixedly installed on the frame 262. The push block 264 is slidably installed on the rectangular block 263 through the slider 265. The rubber pad 266 is fixedly installed on one side of the push block 264.

[0022] In more detail, the lower push block 267 is slidably mounted on the rectangular block 263. The inclined surfaces on the lower push block 267 and the upper push block 264 are staggered. The lower push block 267 is in contact with the fixed plate 261. When the vertical plate 251 and the horizontal plate 252 move to lock the door 11, they will also drive the fixed plate 261 connected to them to move. At this time, the moving fixed plate 261 will contact the lower push block 267, thereby pushing the lower push block 267. The moving lower push block 267 will press the inclined surface on the upper push block 264 through the inclined surface, causing the upper push block 264 to move through the slider 265. The rubber pad 266 is set on the side close to the protective plate 22. The moving upper push block 264 will push the rubber pad 266 towards the protective plate 22, thereby exerting a pushing effect on the protective plate 22. When the door 11 is locked, the push block 267 and the push block 264 are in contact. When the vertical plate 251 and the horizontal plate 252 move (unlocking the door 11), the movement of the vertical plate 251 and the horizontal plate 252 will also drive the fixed plate 261 connected to them to move. The moving fixed plate 261 will disengage from the push block 267. After the pressure of the fixed plate 261 is removed, the push block 264 is no longer pressed. The rubber pad 266 releases the pressure on the protective plate 22. At this time, the door 11 can be opened normally or the protective plate 22 can be removed for operation. After the door 11 is closed and locked, the vertical plate 251 and the horizontal plate 252 return to their original positions and move, causing the fixed plate 261 to press the lower push block 267 again, and pushing the upper push block 264 again to press the rubber pad 266 firmly against the surface of the protective plate 22. Figure 11 As shown, the four sides of the protective plate 22 can be pushed and pressed simultaneously, which can further improve the installation stability of the protective plate 22, prevent the protective plate 22 from being illegally pried and loosened, and thus prevent electricity thieves from inserting prying tools to damage the connection structure of the protective plate 22.

[0023] Reference Figure 10 Specifically, in order to disassemble the frame 262, an installation assembly 27 is provided. The installation assembly 27 includes guide frames 271 symmetrically mounted on the housing 10, rotating frames 272 and baffles 273 respectively mounted on the guide frames 271, and several cylinders 274 fixedly mounted on the frame 262. Figure 2 As shown, there is a distance between the mounting bracket 21 and the housing 10, so the size of the protective plate 22 is smaller than that of the frame 262. The size of the frame 262 plus the cylinder 274 is the same as that of the door 11. Therefore, after the frame 262 is removed, the protective plate 22 can be removed from between several guide brackets 271.

[0024] In more detail, the guide frame 271 is hollow in the middle, the rotating frame 272 is rotatably connected to the guide frame 271, the cylinder 274 is located in the middle of the guide frame 271, the baffle 273 is slidably connected to the rotating frame 272 and is located on one side of the cylinder 274, and the baffle 273 can block the placed cylinder 274. When it is necessary to remove the frame 262, first lift the rotating frame 272 upward and rotate it. The baffle 273 will also rotate with the rotating frame 272, thereby releasing the restriction on the cylinder 274. Then the frame 262 and the cylinder 274 can be pulled out from the hollow part of the guide frame 271, thus completing the overall disassembly of the frame 262. When the frame 262 needs to be installed, the cylinder 274 is aligned with the middle of the guide frame 271 and placed in place. Then, the frame 262 is pushed so that the cylinder 274 presses against the front end of the rotating frame 272, causing the front end of the rotating frame 272 to tilt upward. When the cylinder 274 moves to the appropriate position, the rotating frame 272 rotates back to its original position, and the baffle 273 is locked on one side of the cylinder 274, thus completing the limiting and fixing of the frame 262. The entire installation and disassembly operation is convenient, making it easy to disassemble and assemble the auxiliary component 26 as a whole during maintenance. At the same time, the stable limiting also ensures that the auxiliary component 26 will not shake or shift when working inside the housing 10, ensuring the working stability of the push-protection plate 22.

[0025] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An electricity metering box with anti-theft function, characterized in that, Includes a housing (10), a door (11) is hinged to one side of the housing (10), and a protective mechanism (20) is installed on the housing (10) to protect the internal electrical components, thereby preventing unauthorized alteration of wiring, damage to the meter or interference with metering. The protective mechanism (20) includes a mounting bracket (21) fixedly installed inside the box (10), electrical components are installed on the mounting bracket (21), a protective plate (22) is installed on one side of the mounting bracket (21) by screws, and the protective plate (22) and the mounting bracket (21) are connected by a clip (23). A turntable (24) is rotatably connected to the box door (11), and a fixing component (25) is assembled on the box door (11). The fixing component (25) can increase the difficulty of opening the box door (11) and the box (10), thereby preventing the box door (11) from being easily opened or damaged. The box (10) is also equipped with an auxiliary component (26) that can increase the connection between the box door (11) and the protective plate (22), and an installation component (27) used in conjunction with the auxiliary component (26).

2. An electricity metering box with anti-theft function according to claim 1, characterized in that, The fixing component (25) includes a vertical plate (251) and a horizontal plate (252) symmetrically arranged on the door (11), and a number of rotating blocks (253) and baffles (254) are rotatably installed on the door (11). Each baffle (254) is connected to a through groove (255).

3. An electricity metering box with anti-theft function according to claim 2, characterized in that, The rotating block (253) is rotatably installed at the corner of the vertical plate (251) and the horizontal plate (252). The vertical plate (251) and the horizontal plate (252) are rotatably connected to the rotating block (253). The vertical plate (251) and the horizontal plate (252) are fixedly installed with protrusions located in the through groove (255).

4. An electricity metering box with anti-theft function according to claim 2, characterized in that, A connecting plate is fixedly installed at one end of the turntable (24) extending to the outside of the box door (11). The connecting plate is rotatably connected to one of the vertical plates (251). A blocking frame is provided on the side of the box body (10) near the box door (11). One end of several blocking plates (254) is in contact with the blocking frame.

5. An electricity metering box with anti-theft function according to claim 1, characterized in that, The auxiliary component (26) includes a fixing plate (261) fixedly installed on the vertical plate (251) and the horizontal plate (252), a frame (262) set inside the box (10), several rectangular blocks (263) fixedly installed on the frame (262), an upward push block (264) slidably installed on the rectangular block (263) by a slider (265), and a rubber pad (266) fixedly installed on the upward push block (264).

6. An electricity metering box with anti-theft function according to claim 5, characterized in that, The push block (267) is slidably mounted on the rectangular block (263), and the push block (267) is in contact with the fixing plate (261). The rubber pad (266) is located on the side close to the protective plate (22).

7. An electricity metering box with anti-theft function according to claim 5, characterized in that, The installation assembly (27) includes a guide frame (271) symmetrically installed on the housing (10), a rotating frame (272) and a baffle (273) respectively installed on the guide frame (271), and several cylinders (274) fixedly installed on the frame (262).

8. An electricity metering box with anti-theft function according to claim 7, characterized in that, The guide frame (271) is hollow in the middle. The rotating frame (272) is rotatably connected to the guide frame (271). The cylinder (274) is located in the middle of the guide frame (271). The baffle (273) is slidably connected to the rotating frame (272) and is located on one side of the cylinder (274).

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