An electricity metering box with an anti-theft locking mechanism

Abstract

This application provides an electricity metering box with an anti-theft locking mechanism, belonging to the technical field of electricity metering boxes. The device includes: a metering box body, an electromagnetic control mechanism, a bolt locking mechanism, an interlocking mechanism, and a normal locking mechanism. The metering box body includes a box body and two relatively movable doors. The sliding groove of the box body is designed with a wave-shaped structure, and the mating edges of the two doors also have a wave-shaped structure. The electromagnetic control mechanism is located on the first door and can control the extension and retraction of a trigger pin via electromagnetic drive. The bolt locking mechanism is located on the second door, and the extended trigger pin can push and trigger the bolt locking mechanism to move, causing the end of the bolt locking mechanism to be inserted and limited to the electromagnetic control mechanism. The interlocking mechanism is located on both doors. This device combines an irregularly shaped anti-pry structure, multi-point interlocking, and electromechanical dual-lock design, effectively resisting various violent prying attempts, while also possessing convenient operation and maintenance and emergency unlocking functions, making it highly safe and practical.

Description

Technical Field

[0001] This application relates to the field of electricity metering box technology, and more specifically, to an electricity metering box with an anti-theft locking mechanism. Background Technology

[0002] Electricity metering boxes are devices in the power system that directly face end users. The electricity meters, transformers, and terminals installed inside are primary targets for electricity theft. As electricity theft becomes increasingly professional and lucrative, the methods have evolved into violent breaches of the meter itself. Criminals often use crowbars, thin blades, and cutting tools to damage the box doors and then steal electricity by diverting current and altering voltage at the meter terminals. This not only causes significant losses of electrical resources but also easily leads to safety accidents such as short circuits and electrical leaks.

[0003] Currently, the door protection structure of mainstream electricity meters on the market has several inherent defects, making it difficult to resist deliberate violent attacks: Firstly, when the door leaf and the door frame are closed, a straight gap is formed. Even if some products have an outer edge of the door frame, the gap cannot be completely eliminated. Tools such as pry bars and thin metal sheets can be easily inserted and form a leverage point. Under external force, the door panel is easily deformed and the lock tongue is disengaged, eventually opening the cabinet door. Secondly, most lockable products use a single-point locking structure, which concentrates the force on the door and makes them poor at resisting violent prying. A few products equipped with multi-directional linkage pins are prone to loosening and failure after vibration and repeated prying due to the gap between the pin and the pin hole. Damage to a single locking point or pin will cause the overall locking function to fail.

[0004] Therefore, there is an urgent need for an electricity metering box with an anti-theft locking mechanism. Summary of the Invention

[0005] This application provides an electricity metering box with an anti-theft locking mechanism. Combining an irregular anti-pry structure, multi-point interlocking, and electromechanical dual-lock design, it effectively resists various violent prying behaviors, while also having convenient operation and maintenance and emergency unlocking functions, making it highly safe and practical.

[0006] This application provides an electricity metering box with an anti-theft locking mechanism, comprising a metering box body, an electromagnetic control mechanism, a bolt locking mechanism, an interlocking mechanism, and a normal locking mechanism. The metering box body includes a box body and a first and a second box door that slide relative to each other. The box body has sliding grooves on both sides for the first and second boxes to slide through. The sliding grooves are of a wave-shaped structure, and the mating edges of the two boxes are also wave-shaped. The electromagnetic control mechanism is located on the first box door and includes a trigger post. The electromagnetic control mechanism can control the extension and retraction of the trigger post through electromagnetic drive. The bolt locking mechanism is located on the second box door. The extended trigger post can push and trigger the bolt locking mechanism to displace, causing the end of the bolt locking mechanism to be inserted and limited by the electromagnetic control mechanism. The system includes: an interlocking mechanism, installed on the first and second doors, capable of synchronously locking in response to the displacement of the bolt locking mechanism; a normal locking mechanism, installed on the second door and cooperating with the bolt locking mechanism, capable of mechanically locking the bolt locking mechanism after it has completed its locking displacement; and a flipping mechanism, installed on the housing and connected to the electromagnetic control mechanism, the bolt locking mechanism, and the interlocking mechanism, enabling the electromagnetic control mechanism, the bolt locking mechanism, and the interlocking mechanism to rotate synchronously and avoid each other when the first and second doors move away from each other.

[0007] In some embodiments, the metering box body further includes: a box body with wave-shaped through grooves on both sides; a first box door slidably disposed on one side of the box body; a second box door symmetrically disposed on the box body with respect to the first box door; a first cover rotatably disposed on the first box door; a second cover rotatably disposed on the second box door; a plurality of limiting strips disposed on the inner sides of the first box door and the second box door that are close to each other; a plurality of first anti-pry blocks evenly spaced on the outer sides of the first box door and the second box door that are far apart from each other, the limiting strips having a sliding groove for each first anti-pry block to slide into; a plurality of second anti-pry blocks, including long anti-pry blocks and short anti-pry blocks, sequentially and evenly spaced on the inner sides of the first box door and the second box door that are far apart from each other, each limiting strip having a sliding groove for the long anti-pry block to slide into.

[0008] In some embodiments, the electromagnetic control mechanism includes: a first bearing seat disposed on the first door; a first support frame rotatably connected to the first bearing seat; an electromagnetic module disposed on one side of the first support frame; a first spring disposed inside the electromagnetic module; a telescopic frame slidably disposed inside the electromagnetic module and extending into the first support frame; a connecting block connected to the end of the first spring, wherein the inner diameter of the telescopic frame is larger than the diameter of the connecting block; an adjusting screw rotatably connected to the connecting block and passing through the telescopic frame; a mounting frame disposed inside the first support frame and fixedly connected to the telescopic frame, wherein a trigger post is disposed at the end of the mounting frame away from the telescopic frame, and a through hole is provided on the first support frame for the trigger post to pass through; and a first locking seat fixedly disposed at the bottom of the first support frame.

[0009] In some embodiments, the locking mechanism includes: a second bearing seat disposed on the second door; a second support frame rotatably connected to the second bearing seat; a support base disposed on the second support frame; a limiting tube disposed on the support base; a telescopic column slidably disposed on the limiting tube; a push frame fixedly disposed on the telescopic column, with a toggle lever disposed on one side of the push frame; a second spring sleeved on the telescopic column, one end abutting against the limiting tube and the other end abutting against the push frame; a control frame slidably disposed on the second support frame, the control frame including a toggle groove inclined in the vertical direction, the toggle lever being slidably adapted to the toggle groove of the control frame; and a first locking pin disposed on the control frame, the first locking seat having a lock hole for the first locking pin to be inserted.

[0010] In some embodiments, the interlocking mechanism includes: two third bearings, respectively disposed on the first door and the second door; two third support frames, respectively rotatably connected to the corresponding third bearings; two connecting rods, one end of each connecting rod being connected to the two third support frames, and the other end being connected to the corresponding first support frame and second support frame; a second locking pin, the control frame passing through one of the third support frames and connected to the second locking pin; and a second locking seat, disposed at the bottom of the other third support frame, the second locking seat having a locking hole for the second locking pin to be inserted.

[0011] In some embodiments, the normal locking mechanism includes: a normal locking device disposed on the support base and corresponding to the position of the second cover; a locking member being tractively connected to the normal locking device, and the push frame having an insertion hole for the locking member to be inserted.

[0012] In some embodiments, the flipping mechanism includes: a plurality of extension rods disposed on the first support frame, the second support frame and the two third support frames; a plurality of pulleys disposed on one end of each extension rod; and two guide rails disposed on the top wall and the bottom wall of the housing, wherein each pulley is slidably mounted on the guide rail, and each guide rail is composed of a straight segment and an arc segment connected together.

[0013] In some embodiments, an emergency locking mechanism is further included, which is disposed on the mounting frame and includes: an emergency lock, disposed on the mounting frame and corresponding to the position of the first cover; a first bevel gear, which is operatively connected to the emergency lock; a second bevel gear, disposed on the mounting frame and meshing with the first bevel gear; a torsion block, which is fixedly connected to the second bevel gear; a through groove is provided on the inner side of the adjusting screw, the torsion block passes through the through groove and is limitedly engaged with the adjusting screw, and the adjusting screw is threadedly engaged with the mounting frame.

[0014] In some embodiments, the contact surfaces of the first door and the second door are both corrugated and fitted.

[0015] In some embodiments, each of the anti-pry blocks is integrally formed from a high-strength alloy material, and multiple first anti-pry blocks and second anti-pry blocks are arranged in an alternating pattern to form a staggered anti-pry barrier.

[0016] Compared with the prior art, the technical solution provided in this application includes at least the following technical effects: This application provides an anti-theft locking mechanism. The box body and door utilize a wave-shaped interlocking structure, eliminating long straight lines running through the door gaps and making it difficult to create a leverage point. This limits common electricity theft methods such as thin-plate prying and wire entry through gaps. Combined with a closed, rigid anti-pry barrier formed by staggered anti-pry blocks, and the high-strength alloy integral molding characteristics, the overall resistance to deformation, impact, and violent breaching is significantly improved. The locking mechanism and interlocking mechanism work in tandem to form a double-door, two-way interlocking, multi-point protection system. The force is evenly distributed, preventing single-point damage that could lead to overall unlocking. This significantly enhances resistance to violent prying, ensuring accurate grid metering data and safe electricity usage. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the main body of the metering box according to some embodiments of this application; Figure 2 Some embodiments of this application Figure 1Enlarged structural diagram at point A in the middle; Figure 3 This is a schematic diagram of the metering box body in the open state according to some embodiments of this application; Figure 4 This is a schematic diagram of the structure of two cabinet doors according to some embodiments of this application; Figure 5 This is a schematic diagram of the internal structure of the box in some embodiments of this application; Figure 6 This is one of the structural schematic diagrams of the electromagnetic control mechanism in some embodiments of this application; Figure 7 This is a second schematic diagram of the electromagnetic control mechanism according to some embodiments of this application; Figure 8 This is a schematic diagram of the structure of the locking mechanism in some embodiments of this application; Figure 9 Some embodiments of this application Figure 5 Enlarged structural diagram at point B; Figure 10 This is a schematic diagram of the locking state of the locking mechanism in some embodiments of this application; Figure 11 This is a structural schematic diagram of the unlocked state of the locking mechanism in some embodiments of this application; Figure 12 This is a schematic diagram of the structure of the flipping mechanism in some embodiments of this application; Figure 13 This is a schematic diagram of the locking mechanism in a flipped state according to some embodiments of this application; Figure 14 This is a schematic diagram of the electromagnetic control mechanism in a flipped state according to some embodiments of this application; Figure 15 This is one of the structural schematic diagrams of the emergency lock mechanism in some embodiments of this application; Figure 16 This is a schematic diagram of the emergency lock mechanism trigger state in some embodiments of this application. Figure 17 This is a schematic diagram of the structure of an emergency lock according to some embodiments of this application; Figure 18 This is a second schematic diagram of the emergency lock mechanism according to some embodiments of this application.

[0018] in, Figures 1 to 18 The correspondence between the reference numerals and component names in the attached drawings is as follows: 100. Metering box body; 110. Box body; 120. First box door; 130. Second box door; 140. First protective cover; 150. Second protective cover; 160. Limiting strip; 170. First anti-pry block; 180. Second anti-pry block; 200. Electromagnetic control mechanism; 210. First shaft seat; 220. First support frame; 230. Electromagnetic module; 240. First spring; 250. Telescopic frame; 251. Connecting block; 252. Adjusting screw; 260. Mounting frame; 270. Trigger pin; 280. First locking seat; 300, Locking mechanism; 310, Second shaft seat; 320, Second support frame; 330, Support base; 340, Limiting tube; 350, Telescopic column; 360, Push frame; 361, Actuating rod; 362, Insertion hole; 370, Second spring; 380, Control frame; 381, Actuating groove; 390, First locking pin; 400. Interlocking mechanism; 410. Third shaft seat; 420. Third support frame; 430. Connecting rod; 440. Second locking pin; 450. Second locking seat; 500. Normal locking mechanism; 510. Normal locking device; 520. Locking component; 600. Tilting mechanism; 610. Extension rod; 620. Pulley; 630. Guide rail; 700. Emergency lock mechanism; 710. Emergency lock; 720. First bevel gear; 730. Second bevel gear; 740. Torsion block; 741. Through groove. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0021] The following reference Figures 1 to 18 This application describes an energy metering box with an anti-theft locking mechanism provided according to some embodiments of the present application.

[0022] like Figure 1 , Figure 5As shown, the electricity metering box with anti-theft locking mechanism provided according to some embodiments of this application includes a metering box body 100, an electromagnetic control mechanism 200, a locking mechanism 300, an interlocking mechanism 400, and a normal locking mechanism 500. The metering box body 100 includes a box body 110 and a first door 120 and a second door 130 that open and close relative to each other. The box body 110 has sliding grooves on both sides for the first door 120 and the second door 130 to slide through. The sliding grooves of the box body 110 are designed with a wave-shaped structure, and the mating edges of the two doors are also wave-shaped. The electromagnetic control mechanism 200 is disposed on the first door 120 and includes a trigger pin 270. The electromagnetic control mechanism 200 can control the extension and retraction of the trigger pin 270 through electromagnetic drive. The locking mechanism 300 is disposed on the second door 130. The extended trigger pin 270 can push and trigger the displacement of the locking mechanism 300, causing the end of the locking mechanism 300 to be inserted and limited to the electromagnetic control mechanism. Mechanism 200; Interlocking mechanism 400, installed on the first door 120 and the second door 130, the interlocking mechanism 400 can synchronously lock in accordance with the displacement movement of the bolt locking mechanism 300; Normal locking mechanism 500, installed on the second door 130 and cooperating with the bolt locking mechanism 300, the normal locking mechanism 500 can mechanically lock the bolt locking mechanism 300 after it has completed the locking displacement; Tilting mechanism 600, installed on the housing 110, and connected to the electromagnetic control mechanism 200, the bolt locking mechanism 300 and the interlocking mechanism 400 in a transmission connection, the first door 120 and the second door 130 can move away from each other by the tilting mechanism 600 driving the electromagnetic control mechanism 200, the bolt locking mechanism 300 and the interlocking mechanism 400 to rotate synchronously to avoid each other.

[0023] In this embodiment, when the cabinet door is open, the electromagnetic control mechanism 200 generates an electromagnetic signal to drive the trigger post 270 to retract. When the cabinet door is closed, the two cabinet doors slide relative to each other, and the cabinet doors and the wave-shaped sliding grooves on the cabinet body 110 are fully engaged and fitted, eliminating long straight door gaps. Subsequently, the electromagnetic control mechanism 200 shuts off the electromagnetic signal, the trigger post 270 resets and extends outward, pushing the locking mechanism 300 on the second cabinet door 130 to displace, causing the end of the locking mechanism 300 to be inserted and limited to the electromagnetic control mechanism 200, completing the primary locking of the two doors. At the same time, the displacement of the locking mechanism 300 synchronously drives the interlocking mechanism 400 to work in conjunction, realizing multi-point locking of the two cabinet doors. Finally, the locking mechanism 300 is mechanically locked by the normal locking mechanism 500, completing the all-round locking of the cabinet body 110. After the body 110 is locked, the wavy interlocking door seam restricts the insertion of thin pieces, pry tools, etc. Even if subjected to external vibration or prying, the interlocking mechanism 400 and the normal locking mechanism 500 can be doubly limited to prevent the bolt locking mechanism 300 from loosening or disengaging, continuously protecting the metering components inside the box and preventing illegal electricity theft. When the equipment needs to be unlocked for maintenance, the mechanical lock of the normal locking mechanism 500 is unlocked first, so that the bolt locking mechanism 300 is in a resettable state. Then, the electromagnetic control mechanism 200 inputs an electromagnetic signal to drive the trigger column 270 to retract, the bolt locking mechanism 300 loses its pushing force and resets, and simultaneously drives the interlocking mechanism 400 to release the interlocking state. At this time, the staff pushes and pulls the box door along the flipping mechanism 600. The trajectory of the flipping mechanism 600 can drive the bolt locking mechanism 300 and the interlocking mechanism 400 to rotate synchronously to avoid the obstruction, reducing space occupation.

[0024] In some possible embodiments, such as Figures 1 to 4 As shown, the main body 100 of the metering box includes: a box body 110 with wave-shaped through grooves on both sides; a first box door 120 slidably disposed on one side of the box body 110; a second box door 130 symmetrically disposed on the box body 110 with the first box door 120; a first cover 140 rotatably disposed on the first box door 120; a second cover 150 rotatably disposed on the second box door 130; multiple limiting strips 160 disposed on the box body 110; multiple first anti-pry blocks 170 evenly spaced on the outer surfaces of the first box door 120 and the second box door 130, with each limiting strip having a sliding groove for sliding insertion of each first anti-pry block 170; and multiple second anti-pry blocks 180, including long anti-pry blocks and short anti-pry blocks, sequentially and evenly spaced on the inner surfaces of the first box door 120 and the second box door 130, with each limiting strip 160 having a sliding groove for sliding insertion of the long anti-pry block.

[0025] In this embodiment, maintenance personnel push the first door 120 and the second door 130 to slide and close relative to each other along the wavy sliding grooves on both sides of the box body 110. The wavy contour of the door mating edge completely fits and engages with the wavy sliding groove of the box body 110, forming a gap without long straight lines running through it, structurally restricting the insertion channel of thin plates and pry bars. When the two doors are locked and fitted, the long anti-pry blocks of the first anti-pry block 170 and the second anti-pry block 180 are embedded in the sliding groove of the limiting strip 160 to achieve precise positioning, and the side of the short anti-pry block is simultaneously fitted and positioned. The side of the 160 limiter restricts excessive movement of the door. When pried by external force, the anti-pry block and the 160 limiter form a rigid support, and the force is evenly distributed, effectively limiting local deformation and warping of the door panel, preventing the door gap from widening and the lock tongue from slipping, and resisting violent prying from the side. When the cabinet 110 is in normal operation, the first cover 140 and the second cover 150 remain closed, completely covering the exposed lock position, preventing the lock from being maliciously drilled or pried, or from being corroded by water. When unlocking for maintenance is required, the corresponding cover can be flipped open to expose the lock for unlocking.

[0026] In some possible embodiments, such as Figure 6 , Figure 7 As shown, the electromagnetic control mechanism 200 includes: a first bearing seat 210, disposed on the first door 120; a first support frame 220, rotatably connected to the first bearing seat 210; an electromagnetic module 230, disposed on one side of the first support frame 220; a first spring 240, disposed inside the electromagnetic module 230; a telescopic frame 250, slidably disposed inside the electromagnetic module 230 and extending into the first support frame 220; a connecting block 251, connected to the end of the first spring 240, the inner diameter of the telescopic frame 250 being larger than the diameter of the connecting block 251; an adjusting screw 252, rotatably connected to the connecting block 251 and passing through the telescopic frame 250; a mounting frame 260, disposed inside the first support frame 220 and fixedly connected to the telescopic frame 250, a trigger post 270 disposed at the end of the mounting frame 260 away from the telescopic frame 250, and a through hole for the trigger post 270 to pass through on the first support frame 220; and a first locking seat 280, fixedly disposed at the bottom of the first support frame 220.

[0027] In this embodiment, when the box door is closed, the electromagnetic module 230 is in a de-energized and demagnetized state, with no electromagnetic attraction force acting on the telescopic frame 250. At this time, the first spring 240 of the electromagnetic module 230 releases elastic potential energy, pushing the telescopic frame 250 outward through the connecting block 251. The telescopic frame 250 drives the mounting frame 260 and the trigger post 270 to extend outward simultaneously, causing the trigger post 270 to push the locking mechanism 300 on the side of the second box door 130 to shift, triggering the subsequent locking action, and realizing the automatic locking of the box 110. The power-off locking mode can ensure that the metering box always maintains a locked and protected state during daily operation and power outage scenarios, and will not lead to the risk of electricity theft due to power failure. When it is necessary to unlock and open the door, the electromagnetic module 230 is energized, and the electromagnetic module 230 generates an electromagnetic attraction force to attract the telescopic frame 250. The telescopic frame 250 slides back into the electromagnetic module 230. The telescopic frame 250 drives the connecting block 251 to move synchronously and compress the first spring 240, so that the first spring 240 stores elastic potential energy. At the same time, the telescopic frame 250 drives the trigger post 270 to retract synchronously inward through the mounting frame 260. The trigger post 270 retracts into the first support frame 220, releasing the pushing and limiting effect on the locking mechanism 300. At this time, the locking mechanism 300 and the interlocking mechanism 400 lose the trigger constraint and unlock, realizing the conditions for opening the box door. During the opening and closing of the box door, the first support frame 220 can rotate relative to the box door through the first bearing 210, and cooperate with the box body 110 flipping mechanism 600 to complete the rotation avoidance, so that the electromagnetic control mechanism 200 is retracted and avoided with the opening and closing action, avoiding occupying the operating space of the box body 110.

[0028] In some possible embodiments, such as Figures 8 to 11 As shown, the locking mechanism 300 includes: a second shaft seat 310, mounted on the second door 130; a second support frame 320, rotatably connected to the second shaft seat 310; a support base 330, mounted on the second support frame 320; a limiting tube 340, mounted on the support base 330; a telescopic column 350, slidably mounted on the limiting tube 340; a push frame 360, fixedly mounted on the telescopic column 350, with a lever 361 on one side of the push frame 360; and a second spring 37. 0, sleeved on the telescopic column 350, one end abuts against the limiting tube 340, and the other end abuts against the push frame 360; control frame 380, slidably mounted on the second support frame 320, the control frame 380 includes a toggle groove 381 inclined in the vertical direction, and the toggle rod 361 is slidably adapted to the toggle groove 381 of the control frame 380; first locking pin 390, mounted on the control frame 380, the first locking seat 280 has a locking hole for the first locking pin 390 to be inserted.

[0029] In this embodiment, when the box door is closed, the trigger post 270 extends outward to push the telescopic post 350, the telescopic post 350 retracts to compress the second spring 370, and drives the push frame 360 ​​to move. The actuating rod 361 on its side moves synchronously. The actuating rod 361 slides in the actuating groove 381 of the control frame 380 and forms a lateral driving force on the control frame 380, pushing the control frame 380 to move downward. This controls and drives the first locking pin 390 to insert into the lock hole of the first locking seat 280, thereby achieving a rigid locking of the first box door 120 and the second box door 130. When the door needs to be unlocked, the trigger post 270 retracts inward, releasing the pressure on the push frame 360. At this time, the second spring 370 releases its elastic potential energy, pushing the push frame 360 ​​and the telescopic post 350 back to their original positions. The toggle lever 361 synchronously drives the control frame 380 to move upward and reset, causing the first locking pin 390 to exit from the lock hole of the first locking seat 280, releasing the insertion limit between the two doors. During the opening and closing of the doors, the second support frame 320 can rotate relative to the doors through the second bearing 310, cooperating with the flipping mechanism 600 of the box body 110 to complete the rotation avoidance.

[0030] In some possible embodiments, such as Figure 9 As shown, the interlocking mechanism 400 includes: two third bearing seats 410, respectively disposed on the first door 120 and the second door 130; two third support frames 420, respectively rotatably connected to the corresponding third bearing seats 410; two connecting rods 430, one end of each connecting rod 430 being connected to the two third support frames 420, and the other end being connected to the corresponding first support frame 220 and second support frame 320; a second locking pin 440, the control frame 380 passing through one of the third support frames 420 and connected to the second locking pin 440; and a second locking seat 450, disposed at the bottom of the other third support frame 420, the second locking seat 450 having a locking hole for the second locking pin 440 to be inserted.

[0031] In this embodiment, when the door is closed, the trigger pin 270 extends and pushes the control frame 380 downward. The second locking pin 440, fixed on the control frame 380, moves synchronously with the control frame 380 and finally inserts into the lock hole of the second locking seat 450, completing the interlocking connection. At this time, the second locking pin 440 and the second locking seat 450 form a rigid limit for the two doors, which, together with the interlocking locking of the first locking pin 390, makes the first door 120 and the second door 130 mutually jammed and restrained, preventing them from being locked together. The double-door double interlock protection is achieved by prying or prying open from one side. When unlocking and opening the door, the second locking pin 440 moves up with the control frame 380 and exits the lock hole of the second locking seat 450, allowing the door to slide open smoothly. During the opening process, the first support frame 220 and the second support frame 320 are driven by the flipping mechanism 600 to rotate and swing, and through the connecting rods 430 on both sides, the corresponding third support frame 420 is driven to rotate synchronously around the third shaft seat 410, so that the entire interlocking mechanism 400 rotates synchronously with the locking mechanism to avoid collision.

[0032] In some possible embodiments, such as Figure 10 , Figure 11 As shown, the normal locking mechanism 500 includes: a normal locking device 510, which is mounted on the support base 330 and corresponds to the position of the second cover 150; a locking member 520, which is connected to the normal locking device 510 in a transmission manner; and an insertion hole 362 for the locking member 520 to be inserted into the push frame 360.

[0033] In this embodiment, when the door is closed, the second spring 370 is compressed, and the control frame 380 is in the compressed position. At this time, the operator operates the normal lock 510 to rotate using a special key, driving the locking member 520 to insert into the insertion hole 362 of the push frame 360. The locking member 520 forms a rigid locking position on the push frame 360, keeping the locking mechanism 300 in a locked and compressed state, thus achieving mechanical locking. When the door is opened, the normal lock 510 is rotated in the opposite direction, driving the locking member 520 to exit the push frame 360 ​​and releasing the lock. When the door is fully closed and the normal lock mechanism 500 is locked, the locking mechanism 300 is rigidly limited and fixed by the locking member 520, and the overall locked position cannot be moved. At this point, the electromagnetic control mechanism 200 can be powered on and tested separately. By observing whether the electromagnetic module 230 engages normally and whether the trigger post 270 extends and retracts normally, the effectiveness of the power-on extension, retraction, and reset functions of the electromagnetic control mechanism 200 can be directly verified. Since the normal locking mechanism 500 has locked and fixed the locking mechanism 300, the electromagnetic mechanism's action verification process will not change the locking state of the enclosure 110 or cause false locking. Under the premise that the enclosure 110 is safely locked and the metering protection is not interrupted, the performance test and fault diagnosis of the electromagnetic mechanism can be completed, improving the safety and convenience of equipment operation and maintenance.

[0034] In some possible embodiments, such as Figures 12 to 14As shown, the flipping mechanism 600 includes: multiple extension rods 610, respectively disposed on the first support frame 220, the second support frame 320 and two third support frames 420; multiple pulleys 620, respectively disposed on one end of each extension rod 610; and two guide rails 630, respectively disposed on the top wall and the bottom wall of the housing 110, with each pulley 620 slidably mounted on the guide rail 630, and each guide rail 630 consisting of a straight segment and an arc segment connected together.

[0035] In this embodiment, when the door opens to both sides, the pulley 620 gradually slides from the straight section of the guide rail 630 into the arc section. The arc section of the track generates angular guiding constraints. The pulley 620 laterally presses the extension rod 610, causing each support frame to rotate and swing synchronously around the corresponding axis seat. This causes the originally horizontally protruding locking mechanism to flip inward and be stored away, thus avoiding occupying the operating space of the door opening.

[0036] In some possible embodiments, such as Figures 15 to 18 As shown, it also includes an emergency lock mechanism 700, which is mounted on the mounting frame 260. The emergency lock mechanism 700 includes: an emergency lock 710, mounted on the mounting frame 260 and corresponding to the position of the first cover 140; a first bevel gear 720, which is connected to the emergency lock 710; a second bevel gear 730, mounted on the mounting frame 260 and meshing with the first bevel gear 720; a torsion block 740, which is fixedly connected to the second bevel gear 730; a through groove 741 is provided on the inner side of the adjusting screw 252, the torsion block 740 passes through the through groove 741 and is limited to the adjusting screw 252, and the adjusting screw 252 is threadedly connected to the mounting frame 260.

[0037] In this embodiment, when the door is fully closed and the device is normally locked, the mounting frame 260 is in the standard position, and the internal spindle of the emergency lock 710 is coaxially aligned with the first bevel gear 720. At this time, the emergency key can be easily inserted, and the conditions for emergency unlocking are met. When the door is open and the mechanism is flipped and offset, the mounting frame 260 is offset, and the emergency lock 710 and the first cover 140 are misaligned, preventing the key from being inserted. When the door is closed and the electromagnetic control mechanism 200 malfunctions, preventing the trigger pin 270 from being retracted electronically to unlock, the emergency lock 710... When the first cover 140 is aligned with the 0, maintenance personnel can open the first cover 140, insert the authorized emergency key, and rotate the key. The key drives the first bevel gear 720 to rotate, which in turn drives the second bevel gear 730 to rotate synchronously through meshing transmission. The torsion block 740 rotates synchronously with the second bevel gear 730. The torsion block 740 is limited and inserted into the through groove 741 inside the adjusting screw 252. It drives the adjusting screw 252 to rotate synchronously by relying on the axial locking of the groove wall. Since the adjusting screw 252 and the mounting frame 260 form a threaded transmission engagement, the mounting frame 260 is radially limited by the telescopic frame 250. The rotational motion of the adjusting screw 252 is converted into linear feed motion along its own axis. The adjusting screw 252 moves axially towards the trigger post 270, pulling the connecting block 251 to move synchronously. The connecting block 251 pulls one end of the first spring 240, the other end of which is fixed to the inner end face of the electromagnetic module 230. After being stretched, it undergoes elastic elongation deformation and stores elastic potential energy. As the adjusting screw 252 continues to feed and move, it continues until the end of the through groove 741 near the connecting block 251 contacts the torsion block 740. At this point, the adjusting screw... The portion of the screw 252 with the through groove 741 has basically extended into the mounting frame 260. When the staff removes the emergency key, the emergency lock 710 and the bevel gear no longer output rotational torque. The torsion block 740 loses its external rotational constraint. The previously stretched first spring 240 releases its elastic potential energy and pulls the connecting block 251 back by its own elastic force. The connecting block 251 then drives the adjusting screw 252, the telescopic frame 250, and the mounting frame 260 to retract axially in sequence, causing the trigger pin 270 to disengage from the second support frame 320, releasing the locking constraint, and the enclosure can be opened and maintained normally.

[0038] It should be noted that this emergency unlocking is a dedicated fault unlocking mode, only used for emergency repair scenarios when the electromagnetic mechanism fails. After the emergency unlocking action is completed, the state of the equipment's electromagnetic drive structure is changed, the electronic control locking logic is temporarily disabled, and the device cannot automatically restore the normal electronic control locking function. This emergency unlocking state will remain, and the equipment can only return to the normal automatic locking working mode after maintenance personnel perform fault inspection, reset and calibration of the electromagnetic control mechanism 200. This effectively avoids the problem of emergency unlocking being maliciously abused and circumventing protection.

[0039] In some possible embodiments, such as Figure 5 As shown, the contact surfaces of the first door 120 and the second door 130 are both corrugated and fitted.

[0040] In this embodiment, when the first door 120 and the second door 130 slide and close relative to each other along the sliding groove of the box body 110, the wave-shaped abutment surfaces on both sides gradually nest and fit together. The interlocking structure blocks the straight through gap. When subjected to external prying, thin-plate prying, or external pressure, the wave-shaped interlocking structure can distribute the force at multiple points, avoiding local stress concentration that could cause door panel deformation and gap opening. At the same time, the bent gap cannot form a straight lever arm, preventing tools such as prying plates and thin steel plates from entering the gap to establish an effective prying fulcrum, thus eliminating the conditions for theft by prying through gaps from the structural root.

[0041] In some possible embodiments, such as Figure 3 , Figure 4 As shown, each anti-pry block is integrally molded from high-strength alloy material, and multiple first anti-pry blocks 170 and second anti-pry blocks 180 are arranged in an alternating pattern to form a staggered anti-pry barrier.

[0042] In this embodiment, when locked, the long anti-pry blocks of the first anti-pry block 170 and the second anti-pry block 180 are embedded in the sliding groove. The anti-pry block and the limiting strip 160 form a closed rigid whole. The structure cannot be disassembled by prying from one side, which limits the local deformation of the box door and the widening of the door gap. At the same time, each anti-pry block adopts a high-strength alloy one-piece molding process, with no splicing or welding weak points. It has high hardness, is not easy to break or bend, and can effectively resist external damage such as violent prying, squeezing, and knocking.

[0043] When the electricity metering box with anti-theft locking mechanism is in operation, with the door open, the electromagnetic control mechanism 200 is energized to generate electromagnetic attraction, driving the trigger post 270 to remain in a retracted state, without affecting the door closing action. The operator slides the first door 120 and the second door 130 relative to each other along the wavy through grooves on both sides of the box body 110 to close them. The wavy structures at the mating edges of the two doors interlock with each other. At the same time, the long anti-pry block of the second anti-pry block 180 on the inner side of the door is embedded in the corresponding limit strip 160 groove, and the short anti-pry block is attached to the side wall of the corresponding limit strip 160. Each first anti-pry block 170 is embedded in the corresponding limit strip 160 groove, forming a closed rigid anti-pry barrier. The lock position is closed and blocked by the first cover 140 and the second cover 150. After the door is closed in place, the electromagnetic module 230 is de-energized and demagnetized. The first spring 240 releases elastic potential energy to push the telescopic frame 250, the mounting frame 260 and the trigger post 270 outward. The extended trigger post 270... The telescopic column 350 of the push-lock mechanism 300 retracts and compresses the second spring 370, causing the push frame 360 ​​and the actuating rod 361 to move synchronously. The actuating rod 361 drives the control frame 380 to move downward, so that the first locking pin 390 is inserted into the first locking seat 280. At the same time, the control frame 380 drives the second locking pin 440 to move synchronously and insert into the second locking seat 450, realizing double-door double interlocking. Finally, by manually operating the normal locking mechanism 500, the locking element 520 is inserted into the insertion hole 362 of the push frame 360, which mechanically and rigidly locks the locking mechanism 300, completing the all-round locking of the box 110. In the locked state, the box 110 resists external prying by relying on the wave interlocking structure and the anti-pry block structure, and continuously ensures the safety of the metering equipment by relying on multiple locking limits. When it is necessary to open the box door, the mechanical locking of the normal locking mechanism 500 is released by a special key, so that the push frame 360 ​​is released from the limit and the locking mechanism 300 returns to the resettable state. Subsequently, the electromagnetic module 230 is energized, the electromagnetic adsorption telescopic frame 250 retracts, driving the trigger pin 270 to retract and disengage from the locking mechanism 300, releasing the pushing constraint. The second spring 370 rebounds, driving the locking mechanism 300 to reset as a whole. The first locking pin 390 and the second locking pin 440 simultaneously exit the lock hole, releasing the double-door locking and interlocking state. As the staff slides to both sides to open the box door, the pulleys 620 at the ends of each support frame slide from the straight section of the guide rail 630 into the arc section. Through the track trajectory constraint, the first support frame 220, the second support frame 320, and the third support frame 420 simultaneously rotate around the corresponding axis seat, driving the entire locking and interlocking mechanism to flip inward to store and avoid obstacles.

[0044] In this application, it should be noted that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0046] In this application, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. The term "multiple" refers to two or more, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0047] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0048] In this application, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0049] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An electricity metering box with an anti-theft locking mechanism, characterized in that, include: The main body of the metering box includes a box body and a first box door and a second box door that open and slide relative to each other. The box body is provided with sliding grooves on both sides for the first box door and the second box door to slide through. The sliding grooves are configured with a wave-shaped structure, and the mating edges of the two box doors are both wave-shaped structures. An electromagnetic control mechanism is installed on the first door. The electromagnetic control mechanism includes a trigger post, and the electromagnetic control mechanism can control the extension and retraction of the trigger post through electromagnetic drive. A locking mechanism is provided on the second door. The trigger post extends and can push and trigger the locking mechanism to move, so that the end of the locking mechanism is inserted and limited to the electromagnetic control mechanism. An interlocking mechanism is installed on the first and second doors of the cabinet. The interlocking mechanism can lock synchronously with the displacement movement of the locking mechanism. A normal locking mechanism is installed on the second door and cooperates with the bolt locking mechanism. The normal locking mechanism can mechanically lock the bolt locking mechanism after it has completed displacement. A flipping mechanism is installed on the housing and is connected to the electromagnetic control mechanism, the locking mechanism, and the interlocking mechanism. When the first door and the second door move away from each other, the flipping mechanism can drive the electromagnetic control mechanism, the locking mechanism, and the interlocking mechanism to rotate synchronously to avoid each other.

2. The electricity metering box with an anti-theft locking mechanism according to claim 1, characterized in that, The main body of the metering box also includes: The first protective cover is rotatably mounted on the first box door; The second cover is rotatably mounted on the second box door; Multiple limiting strips are provided on the housing; Multiple first anti-pry blocks are evenly spaced and arranged on the outer sides of the first and second cabinet doors that are far apart from each other. The limiting strip is provided with a sliding groove for each first anti-pry block to slide into. Multiple second anti-pry blocks, including long anti-pry blocks and short anti-pry blocks, are arranged sequentially and evenly at intervals on the inner sides of the first box door and the second box door, which are far apart from each other. Each of the limiting strips has a sliding groove for the long anti-pry block to slide into.

3. The electricity metering box with an anti-theft locking mechanism according to claim 2, characterized in that, The electromagnetic control mechanism includes: The first shaft seat is mounted on the first housing door; The first support frame is rotatably connected to the first bearing. The electromagnetic module is located on one side of the first support frame; The first spring is disposed inside the electromagnetic module; The telescopic frame is slidably disposed inside the electromagnetic module and extends into the first support frame; A connecting block is connected to the end of the first spring, and the inner diameter of the telescopic frame is larger than the diameter of the connecting block; An adjusting screw is rotatably connected to the connecting block and passes through the telescopic frame; The mounting frame is set inside the first support frame and is fixedly connected to the telescopic frame. The trigger post is set at the end of the mounting frame away from the telescopic frame. The first support frame has a through hole for the trigger post to pass through. The first locking seat is fixedly installed at the bottom of the first support frame.

4. The electricity metering box with an anti-theft locking mechanism according to claim 3, characterized in that, The locking mechanism includes: The second shaft seat is mounted on the second housing door; The second support frame is rotatably connected to the second shaft seat; The support base is disposed on the second support frame; A limiting tube is provided on the support base; The telescopic column is slidably mounted on the limiting tube; A push frame is fixedly mounted on the telescopic column, and a lever is provided on one side of the push frame; The second spring is sleeved on the telescopic column, with one end abutting against the limiting tube and the other end abutting against the push frame; A control frame is slidably mounted on the second support frame. The control frame includes a toggle slot that is inclined in the vertical direction, and the toggle rod is slidably adapted to the toggle slot of the control frame. A first locking pin is provided on the control frame, and a locking hole is provided on the first locking base for the first locking pin to be inserted.

5. The electricity metering box with an anti-theft locking mechanism according to claim 4, characterized in that, The interlocking mechanism includes: Two third shaft seats are respectively installed on the first box door and the second box door; Two third support frames are rotatably connected to the corresponding third shaft seats; Two connecting rods, one end of each connecting rod is connected to the two third support frames respectively, and the other end is connected to the corresponding first support frame and second support frame respectively; The second locking pin is connected to one of the third support frames through the control frame. The second mortise lock seat is located at the bottom of the other third support frame, and the second mortise lock seat has a lock hole for the second mortise lock pin to be inserted.

6. The electricity metering box with an anti-theft locking mechanism according to claim 4, characterized in that, The normal locking mechanism includes: A standard lock is mounted on the support base and corresponds to the position of the second cover. The locking component is connected to the normal lock via a transmission mechanism, and the push frame has an insertion hole for inserting the locking component.

7. The electricity metering box with an anti-theft locking mechanism according to claim 5, characterized in that, The flipping mechanism includes: Multiple extension rods are respectively disposed on the first support frame, the second support frame and the two third support frames; Multiple pulleys are disposed at one end of each of the aforementioned extension rods; Two guide rails are respectively provided on the top and bottom walls of the box. Each pulley is slidably mounted on the guide rail. Each guide rail is composed of a straight segment and an arc segment connected together.

8. The electricity metering box with an anti-theft locking mechanism according to claim 3, characterized in that, It also includes an emergency locking mechanism, which is disposed on the mounting frame and includes: An emergency lock is mounted on the mounting frame and corresponds to the position of the first cover. The first bevel gear is connected to the emergency lock via a transmission mechanism; The second bevel gear is disposed on the mounting frame and meshes with the first bevel gear. The torsion block is fixedly connected to the second bevel gear. A through groove is provided on the inner side of the adjusting screw. The torsion block passes through the through groove and is limited to the adjusting screw. The adjusting screw is threadedly connected to the mounting frame.

9. The electricity metering box with an anti-theft locking mechanism according to claim 2, characterized in that, The contact surfaces of the first and second doors are both corrugated and fitted.

10. The electricity metering box with an anti-theft locking mechanism according to claim 2, characterized in that, Each of the aforementioned anti-pry blocks is integrally molded from alloy material, and multiple first anti-pry blocks and second anti-pry blocks are arranged in an alternating pattern.

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