An anti-stealing electricity smart meter

Abstract

The present invention relates to the technical field of anti-stealing devices for electric meters, and specifically relates to an intelligent electric meter for preventing electricity stealing, which includes a meter box. An anti-theft shell is fixedly welded inside the meter box. An anti-theft cover is rotatably installed at the left end of the anti-theft shell. An alarm induction device is fixedly installed inside the meter box. A lock core sleeve is fixedly installed at the front end inside the meter box. A key is arranged on the left side of the lock core sleeve, and an anti-theft unlocking device that can only be opened by the key is arranged inside the lock core sleeve. The present invention can only be opened by the correct key. Among them, the key serves as a physical protection layer, and the alarm induction device serves as an electronic protection layer, which can be used as a second line of defense. If there is a violent unlocking behavior (such as using tools to pry open the lock), the alarm induction device can also quickly detect the abnormal vibration mode and identify the abnormal unlocking behavior, making up for the deficiency of a single protection means.

Description

Technical Field

[0001] The present invention relates to the technical field of anti-stealing devices for electric meters, and specifically to an intelligent electric meter for preventing electricity theft. Background Art

[0002] With the continuous growth of power consumption, the management and monitoring of power systems have become increasingly complex. Especially in the field of power metering, traditional mechanical electric meters can no longer meet the requirements of modern power metering systems for accuracy, security, and intelligence. In recent years, with the opening of the power market and the construction of smart grids, traditional power metering methods have faced huge challenges. Problems such as illegal electricity use and electricity theft not only damage the interests of power companies but also affect the management of social power resources.

[0003] After retrieval, it is found that the prior art with the publication number CN116539938A discloses an intelligent electric meter for preventing electricity theft, which includes: an electric meter assembly, a protection assembly, a processor, a detection unit, a communication unit, and an alarm unit. The electric meter assembly includes a support plate, an electric meter, a chute, and a baffle. The electric meter is arranged on the front side of the support plate, chutes are arranged on both sides of the support plate, and a baffle is arranged at the bottom of the support plate; the protection assembly is arranged on the chute, and the protection assembly includes a sliding cover, an electric control box, and a pressure contact unit. The sliding cover is connected to the chute, an electric control box is arranged at the top inside the sliding cover, and a pressure contact unit is arranged at the top inside the cavity of the electric control box; in this solution, when the pressure contact unit contacts the electric meter and is in a triggered state, the circuit of the detection unit is turned on to realize the detection of electricity theft of the electric meter. During use, the sliding cover protects the outside of the electric meter to prevent electricity theft by wiring. At the same time, after the sliding cover slides down, the pressure contact unit turns on the detection unit to detect the circuit, and an alarm is issued according to the detection result.

[0004] Therefore, based on the above retrieval and combined with the existing technology, during the application of the above solution, an alarm can only be issued after the electric meter has been stolen, which means that the electric meter has been pried open by improper means. If no alarm is issued when the electric meter is pried open, the electricity thief has succeeded and escaped. At this time, it will be difficult to trace the electricity theft behavior. For this reason, we propose an intelligent electric meter for preventing electricity theft. Summary of the Invention

[0005] The purpose of the present invention is to provide an intelligent electric meter for preventing electricity theft to solve the problems raised in the above background art.

[0006] To achieve the above object, the present invention provides the following technical solution: An anti-stealing electricity intelligent electric meter, including a meter box, a digital display for displaying the current power consumption is fixedly installed at the inner end of the meter box, a dust-proof cover for shielding wind, rain and dust is arranged on the left side of the meter box, an anti-theft shell is fixedly welded at the inner end of the meter box, an anti-theft cover is rotatably installed at the left end of the anti-theft shell, a clamping plate is fixedly installed at the right end of the anti-theft cover, a clamping hook is rotatably installed at the right end of the anti-theft shell, and the clamping hook is clamped in the clamping plate. A winding rod is rotatably installed at the right end of the anti-theft shell, a towing belt is wound around the outer surface of the winding rod, and the free end of the towing belt is fixedly connected to the end of the clamping hook away from the anti-theft cover. An alarm induction device is fixedly installed at the inner end of the meter box, a lock core sleeve is fixedly installed at the front end inside the meter box, a key is arranged on the left side of the lock core sleeve, and an anti-theft unlocking device that can only be opened by the key is arranged inside the lock core sleeve.

[0007] As a further scheme of the present invention, a reset rod is slidably installed at the inner end of the meter box, the reset rod corresponds to the alarm induction device, a passive pipe is rotatably installed at the right end of the anti-theft shell, and the passive pipe is fixedly connected to the winding rod. The passive pipe is fixedly connected to the winding rod. By rotating and pulling the winding rod, the anti-theft shell can be effectively locked or unlocked to prevent illegal operation to open the anti-theft shell. The role of the passive pipe is to prevent the anti-theft shell from being damaged by illegal external force and enhance the physical security of the device.

[0008] As a further scheme of the present invention, an unlocking sleeve is sleeved on the outer surface of the reset rod, an extension rod is fixedly installed at the end of the unlocking sleeve close to the reset rod, and a pulling rod is rotatably installed at the end of the extension rod away from the passive pipe. The free end of the pulling rod is rotatably connected to the unlocking sleeve. An activity sleeve is slidably installed on the outer surface of the reset rod, and the activity sleeve is located on the right side of the unlocking sleeve. When the unlocking sleeve moves towards the alarm induction device, the passive pipe can be driven to rotate through the extension rod.

[0009] As a further scheme of the present invention, the anti-theft unlocking device includes a trigger sleeve, the trigger sleeve is rotatably installed at the inner end of the lock core sleeve, a lock ring is fixedly installed on the outer surface of the trigger sleeve, a plurality of rectangular holes are opened on the outer surface of the trigger sleeve, and a stable shell is penetrated in each rectangular hole, and the stable shell is fixedly connected to the lock ring.

[0010] As a further scheme of the present invention, a synchronous pipe is fixedly installed at the inner end of the stable shell, a locking block is slidably installed at the upper inner end of the synchronous pipe, a plurality of clamping blocks are fixedly installed at the inner end of the lock core sleeve, and the outer surfaces of the plurality of clamping blocks are in contact with the outer surface of the locking block. The contact between the clamping block and the locking block can effectively prevent the illegal rotation and disassembly of the lock core. The plurality of clamping blocks are distributed at the inner end of the lock core sleeve to ensure that the lock core can rotate smoothly during normal operation. However, when attempting illegal opening or prying, the combination of the clamping block and the locking block will provide additional protection to prevent the lock core from being damaged or rotated.

[0011] As a further solution of the present invention, a plurality of contact rods are slidably installed on the inner end of the stabilizing shell, and the right end of the contact rod is inserted into the interior of the synchronization tube. The outer surface of the contact rod is provided with a passive groove, and the interior of the passive groove is provided with a triangular block. The triangular blocks are fixedly connected to each other. The contact rod can slide inside the stabilizing shell, so that it can effectively adjust its position during the operation of the lock, ensuring close fit with the synchronization tube and other components, thereby reducing the impact of friction and vibration on components and improving the service life of the lock.

[0012] As a further solution of the present invention, a toggle plate is rotatably installed at the inner front end of the stabilizing shell, and a push rod is rotatably installed at one end of the triangular block close to the toggle plate. The free end of the push rod is rotatably connected to the toggle plate. The toggle plate serves as a rotating element, and the state of the internal mechanism can be precisely controlled by rotation or toggling, and the position or movement of other components can be adjusted as needed.

[0013] As a further solution of the present invention, a locking shell is fixedly installed on the inner end of the trigger sleeve, a comparison rod is passed through the inner end of the locking shell, and a plurality of comparison cylinders are fixedly installed on the inner bottom end of the locking shell. The comparison cylinders are fixedly connected to each other. The design of the comparison rod passing through the inner end of the locking shell can ensure that the locking shell can be accurately aligned with other components during the operation of the lock.

[0014] As a further solution of the present invention, the inner end of the comparison cylinder is provided with a comparison touch rod, the outer surface of the comparison rod is provided with a plurality of grooves of different depths, and the grooves correspond to the comparison touch rod, the inner end of the locking shell is slidably installed with a propelling plate, and the right end of the propelling plate is fixedly installed with a synchronization block, and the synchronization block corresponds to the comparison touch rod.

[0015] As a further solution of the present invention, a spiral groove is provided on the outer surface of the trigger sleeve, a movable rod is fixedly installed on the upper end of the unlocking sleeve, and the end of the movable rod away from the unlocking sleeve is inserted into the spiral groove. When the trigger sleeve rotates, the spiral groove drives the movable rod to move.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention can only be opened with the correct key, where the key acts as a physical protection layer, and the alarm sensor acts as an electronic protection layer, which can serve as a second line of defense. If there is a violent unlocking attempt (such as using a tool to pry open the lock), the alarm sensor can also quickly detect the abnormal vibration pattern and identify the abnormal unlocking behavior, thus making up for the deficiency of a single protection method;

[0018] 2. When the present invention is in use, if the dust cover is opened first instead of inserting the key into the trigger sleeve to unlock, the reset rod will pop out, and the alarm sensing device will immediately trigger an alarm. Even without a special unlocking tool, it is impossible to simply open the device by prying, shaking, disassembling, etc., providing more comprehensive security protection.

[0019] 3. When the present invention is in use, the moment the dust cover is opened, the reset rod moves under the elastic force of the trigger spring and clamps the locking plate in the locking groove, making the passive tube unable to rotate, and naturally the anti-theft cover cannot be opened either. Thieves cannot continue to damage the device or obtain the internal items. The effective anti-theft design reduces the probability of the device being stolen for electricity, thereby reducing the costs of later maintenance, replacement, and compensation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of an intelligent electricity meter for preventing electricity theft;

[0021] Figure 2 is a schematic diagram of the state when the dust cover is opened;

[0022] Figure 3 is a schematic structural diagram of the interior of the anti-theft shell;

[0023] Figure 4 is an enlarged schematic structural diagram of the interior of the anti-theft shell;

[0024] Figure 5 is an enlarged schematic structural diagram of the passive tube;

[0025] Figure 6 is a schematic structural diagram of the position of the reset rod;

[0026] Figure 7 is a schematic structural diagram of the interior of the lock core sleeve;

[0027] Figure 8 is a schematic structural diagram of the interior of the trigger sleeve;

[0028] Figure 9 is an enlarged schematic structural diagram of the interior of the stable shell;

[0029] Figure 10 is a schematic structural diagram of the interior of the locking shell;

[0030] Figure 11 is a schematic structural diagram of the positional relationship between the comparison cylinder and the comparison rod;

[0031] Figure 12 is a schematic diagram of the positional relationship between the synchronization block and the comparison contact rod;

[0032] Figure 13 is a structural diagram of the key;

[0033] Figure 14This is a diagram showing the relationship between the spiral groove and the movable rod position.

[0034] Figure: 1, meter box; 2, digital display; 3, dust cover; 4, key; 5, anti-theft cover; 6, anti-theft shell; 11, slide rail; 12, connecting plate; 21, reset lever; 41, positioning hole; 42, unlocking slot;

[0035] 101. Lock cylinder sleeve; 102. Alarm sensor; 103. Clamping plate; 104. Hook; 105. Towing strap; 106. Rolling rod; 107. Passive tube; 108. Locking slot; 109. Extension rod; 110. Clamping block;

[0036] 201, movable sleeve; 202, trigger spring; 203, locking plate; 204, pulling rod; 205, movable rod; 206, unlocking sleeve;

[0037] 301, lock ring; 302, trigger sleeve; 303, stabilizing shell; 304, locking block; 305, return spring; 306, contact rod; 307, triangular block; 308, push rod; 309, toggle plate; 310, passive groove; 311, synchronization tube; 312, spiral groove;

[0038] 401. Locking shell; 402. Comparison rod; 403. Contact block; 404. Comparison cylinder; 405. Provoking plate; 406. Extrusion spring; 407. Comparison spring; 408. Comparison contact rod; 409. Synchronization block; 410. Resistance spring. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] Example 1: Please refer to Figure 1 A smart electricity meter for preventing electricity theft includes a meter box 1. A digital display 2 for displaying current power consumption is fixedly mounted on the inner end of the meter box 1 by bolts. A dust cover 3 for shielding against wind, rain and dust is provided on the left side of the meter box 1. A sealing rubber ring is provided on the right side of the dust cover 3, which can isolate the inside and outside to the greatest extent when the meter box 1 is closed.

[0041] like Figure 2As shown in the figure, slide rails 11 are fixedly installed on both the upper and lower sides of the front end of the meter box 1. Connecting plates 12 are fixedly welded on both the upper and lower sides of the rear end of the dust-proof cover 3. The upper and lower two connecting plates 12 are slidably installed at the inner ends of the slide rails 11. When the dust-proof cover 3 needs to be opened, it is necessary to first pull the dust-proof cover 3 outwards for a certain distance, and then it can be opened. More specifically, lock holes are fixedly installed on the outer surfaces of both the dust-proof cover 3 and the meter box 1, so as to be able to firmly lock the dust-proof cover 3 outside the meter box 1 through an external lock, preventing the dust-proof cover 3 from being accidentally opened;

[0042] Please refer to Figure 1 、 Figure 3 、 Figure 4 Inside the meter box 1, an anti-theft shell 6 is fixedly welded. A plurality of air switches are arranged inside the anti-theft shell 6. The anti-theft shell 6 protects the air switches in all directions, preventing the possibility of electricity theft personnel from illegally connecting electricity. The anti-theft shell 6 is located below the digital display 2, and an anti-theft tempered glass is fixedly installed at the upper end of the anti-theft shell 6 to further protect the digital display 2. An anti-theft cover 5 is rotatably installed at the left end of the anti-theft shell 6. A sealing rubber ring is fixedly installed at one end of the anti-theft cover 5 close to the anti-theft shell 6 to increase the airtightness between the anti-theft cover 5. A clamping plate 103 is fixedly installed at the right end of the anti-theft cover 5. A clamping hook 104 is rotatably installed at the right end of the anti-theft shell 6, and the clamping hook 104 is clamped inside the clamping plate 103. Without the clamping hook 104 clamping the clamping plate 103, the anti-theft cover 5 cannot be opened from the outside;

[0043] A winding rod 106 is rotatably installed at the right end of the anti-theft shell 6. A towing belt 105 is wound around the outer surface of the winding rod 106. The towing belt 105 is made of metal (painted iron sheet), and the free end of the towing belt 105 is fixedly connected to the end of the clamping hook 104 far away from the anti-theft cover 5. An alarm induction device 102 is fixedly installed at the inner end of the meter box 1. Specifically, the alarm induction device 102 is internally provided with a processor, a vibration sensor, an infrared sensor, a siren, a signal transmitter, and a rechargeable battery. The above-mentioned parts are all existing mature technologies and will not be elaborated here. When the device is pried, the alarm induction device 102 will sound an alarm. When the alarm sounds, the siren will start to sound. A lock core sleeve 101 is fixedly installed at the front end of the inner side of the meter box 1. A key 4 is arranged on the left side of the lock core sleeve 101, and an anti-theft unlocking device that can only be opened by the key 4 is arranged inside the lock core sleeve 101;

[0044] Please refer to Figure 1 、 Figure 3 - Figure 6, a reset rod 21 is slidably installed at the inner end of the meter box 1. A rectangular groove is formed on the outer surface of the reset rod 21. A limit slider is fixedly installed at the inner end of the meter box 1. The limit slider is located in the rectangular groove to prevent the reset rod 21 from rotating. The reset rod 21 corresponds to the alarm induction device 102. The reset rod 21 and the alarm induction device 102 are connected by a trigger spring 202. And the infrared sensor of the alarm induction device 102 corresponds to the reset rod 21. When the dust cover 3 is tightly closed with the meter box 1, the dust cover 3 squeezes the reset rod 21, and the trigger spring 202 is then pressed and locked. If the dust cover 3 is opened under abnormal conditions, the trigger spring 202 releases its elastic force, causing the reset rod 21 to be ejected. The infrared sensor inside the alarm induction device 102 senses the movement of the reset rod 21, causing the alarm induction device 102 to emit an alarm. A passive tube 107 is rotatably installed at the right end of the anti-theft shell 6, and the passive tube 107 is fixedly connected to the winding rod 106. An unlocking sleeve 206 is sleeved on the outer surface of the reset rod 21. An extension rod 109 is fixedly installed at one end of the unlocking sleeve 206 close to the reset rod 21. The extension rod 109 is in a "Z" shape, and a pull rod 204 is rotatably installed at one end of the extension rod 109 far from the passive tube 107. The free end of the pull rod 204 is rotatably connected to the unlocking sleeve 206. When the unlocking sleeve 206 moves towards the alarm induction device 102, it can drive the passive tube 107 to rotate through the extension rod 109;

[0045] Please refer to Figure 4 , Figure 5 , Figure 6 , a movable sleeve 201 is slidably installed on the outer surface of the reset rod 21. The movable sleeve 201 is located on the right side of the unlocking sleeve 206. A rectangular block is fixedly installed at the inner end of the movable sleeve 201. The rectangular block also slides in the rectangular groove on the outer surface of the reset rod 21, so that when the movable sleeve 201 slides, the phenomenon of self-rotation is avoided. A locking plate 203 is fixedly welded on the outer surface of the movable sleeve 201. The locking plate 203 is parallel to the passive tube 107. A locking groove 108 is formed on the outer surface of the passive tube 107. A limit ring is fixedly installed on the outer surface of the reset rod 21. Then when the reset rod 21 is pushed by the trigger spring 202, the movable sleeve 201 is pushed by the limit ring so that the locking plate 203 penetrates into the locking groove 108, making the passive tube 107 unable to rotate continuously, and the anti-theft cover 5 is completely locked.

[0046] Embodiment 2: Please refer to Figure 3 , Figure 7 , Figure 8, an anti-theft smart meter, based on embodiment 1, the anti-theft unlocking device includes a trigger sleeve 302, the trigger sleeve 302 is rotatably mounted on the inner end of the lock core sleeve 101, the outer surface of the trigger sleeve 302 is fixedly mounted with a lock ring 301, the outer surface of the trigger sleeve 302 is opened with a plurality of rectangular holes, each of the rectangular holes is penetrated by a stabilizing shell 303, and the stabilizing shell 303 is fixedly connected to the lock ring 301, the inner end of the stabilizing shell 303 is fixedly mounted with a synchronization tube 311, the upper inner end of the synchronization tube 311 is slidably mounted with a locking block 304, the outer surface of the locking block 304 close to the synchronization tube 311 is provided with a sealing rubber ring, and is tightly fitted with the inner wall of the synchronization tube 311 to increase airtightness, the inner end of the lock core sleeve 101 is fixedly mounted with a plurality of card blocks 110, and the plurality of card blocks 110 are in contact with the outer surface of the locking block 304;

[0047] A plurality of contact rods 306 are slidably mounted on the inner end of the stabilizing shell 303. The right end of the contact rod 306 is inserted into the interior of the synchronization tube 311. The contact rod 306 is fixedly sleeved with a sealing rubber ring near the outer surface of the synchronization tube 311 and fits tightly with the inner end of the synchronization tube 311 to increase airtightness. When the contact rod 306 moves, it squeezes the air inside the synchronization tube 311, causing the air inside the synchronization tube 311 to push the locking block 304 to move, so that the locking block 304 no longer contacts the locking block 110.

[0048] See also Figure 8 , Figure 10 - Figure 12 , the outer surface of the contact rod 306 is provided with a passive groove 310, and the interior of the passive groove 310 is provided with a triangular block 307, the volume of the triangular blocks 307 of the large and small passive grooves 310 is the same, and the contact rod 306 is connected to the stable shell 303 by a spring, the triangular blocks 307 are fixedly connected to each other, and the triangular blocks 307 are connected to the stable shell 303 by a return spring 305. A toggle plate 309 is rotatably installed on the front end of the inner side of the stable shell 303, and a push rod 308 is rotatably installed on the end of the triangular block 307 close to the toggle plate 309. The free end of the push rod 308 is rotatably connected to the toggle plate 309. When the toggle plate 309 is rotated under force, the triangular block 307 is pushed to move by the push rod 308, so that the triangular block 307 gradually moves away from the passive groove 310, so that the contact rod 306 has a certain amount of activity space;

[0049] The inner end of the trigger sleeve 302 is fixedly welded with a locking shell 401. A comparison rod 402 is inserted through the inner end of the locking shell 401. The comparison rod 402 is connected to the locking shell 401 by a comparison spring 407. A limiting groove is formed on the outer surface of the comparison rod 402. A limiting block is fixedly installed at the inner end of the locking shell 401. The limiting block is located in the limiting groove, so that the comparison rod 402 will not rotate during the sliding process. One end of the comparison rod 402 away from the locking shell 401 is fixedly installed with a contact block 403. A plurality of comparison cylinders 404 are fixedly installed at the inner bottom end of the locking shell 401. The comparison cylinders 404 are fixedly connected to each other. Comparison contact rods 408 are inserted through the inner ends of the comparison cylinders 404. A plurality of grooves with different depths are formed on the outer surface of the comparison rod 402, and the grooves correspond to the comparison contact rods 408. The comparison contact rods 408 are connected to the comparison cylinders 404 by abutment springs 410. A picking plate 405 is slidably installed at the inner end of the locking shell 401. The picking plate 405 is connected to the locking shell 401 by a compression spring 406;

[0050] As Figure 12 shown, a synchronization block 409 is fixedly installed at the right end of the picking plate 405. The synchronization block 409 corresponds to the comparison contact rod 408. A plurality of mutually staggered positioning grooves are formed on the outer surface of the comparison contact rod 408. When the grooves on the outer surface of the comparison contact rod 408 are parallel when the comparison rod 402 is forced to move, the comparison contact rods 408 are in a state of unevenness under the elastic force of the abutment springs 410. At the same time, the positioning grooves are horizontally aligned, so that the synchronization block 409 is embedded in the positioning grooves. A limiting groove is formed at the inner end of the lock core sleeve 101. The picking plate 405 is located in the limiting groove. Then, when the picking plate 405 moves under the action of the compression spring 406, it will disengage from the limiting groove in the lock core sleeve 101;

[0051] As Figure 9 、 Figure 10 、 Figure 13 shown, a plurality of positioning holes 41 are formed on the outer surface of the key 4, and the concave depths of the positioning holes 41 are not uniform. An unlocking groove 42 is formed on the outer surface of the key 4. When the key 4 is inserted into the trigger sleeve 302, the unlocking groove 42 corresponds to the contact block 403, and the positioning holes 41 correspond to the contact rods 306. At the same time, the combination of the positioning holes 41 with different depths increases the difficulty of being cracked;

[0052] As Figure 14 shown, a spiral groove 312 is formed on the outer surface of the trigger sleeve 302. A movable rod 205 is fixedly installed at the upper end of the unlocking sleeve 206, and one end of the movable rod 205 away from the unlocking sleeve 206 is inserted into the spiral groove 312. When the trigger sleeve 302 rotates, the spiral groove 312 drives the movable rod 205 to move;

[0053] As Figure 3 、 Figure 9 、Figure 10 As shown, more specifically, there are five vibration sensors in the alarm induction device 102, which are respectively located in four stable cases 303 and the locking case 401. When the key 4 is used to open it normally, the vibration generated inside is often continuous and direct. When the lock is pried, the vibration generated inside is irregular. Therefore, the alarm induction device 102 determines whether there is a possibility of lock prying according to the vibration pattern;

[0054] Based on the above principle, each induction device will output a vibration value sequence (which can be time series data). We can record the vibration values V1, V2, V3, V4, V5 of each induction device and calculate the mean, standard deviation (std), and peak-to-peak (P-P) of each induction device's vibration sequence:

[0055]

[0056] P-P(V i ) = max(V i ) - min(V i );

[0057] Standard deviation threshold: If the vibration standard deviation of a certain induction device is greater than the set threshold std threshold , it is considered that the vibration is irregular. Peak-valley difference threshold: If the peak-valley difference of the vibration of a certain induction device 102 is greater than the set threshold P-P threshold , it is considered that the vibration is irregular. Therefore, the judgment condition of the alarm induction device is: std(V i ) > std threshold or P-P(V i ) > P-P threshold . If the alarm induction device 102 detects irregular vibration, an alarm will be issued.

[0058] The working principle of the present invention is:

[0059] When unlocking is required, the key 4 is inserted into the trigger sleeve 302. When the key 4 enters the trigger sleeve 302, the key 4 first pushes the toggle plate 309 to rotate, and pushes the triangular block 307 to move through the push rod 308, and then the unlocking groove 42 contacts the contact block 403. As the key 4 continues to be inserted, the comparison rod 402 is pushed, and then the end of the contact rod 306 away from the stabilizing shell 303 penetrates into the positioning hole 41. Since the depths of the positioning holes 41 are uneven, the distances moved by the contact rod 306 are also different. When the contact rod 306 moves, it squeezes the air inside the synchronization tube 311, and the locking block 304 starts to move under the squeezing action of the air inside the synchronization tube 311 and breaks away from the contact block 110 (it is worth noting that due to the different depths of the positioning holes 41, the distances moved by the four locking blocks 304 outside the trigger sleeve 302 are also different. Only when the four locking blocks 304 move at the same time can they no longer contact the block 110).

[0060] At the same time, after the comparison rod 402 is pushed by the force, the upper end of the comparison touch rod 408 penetrates the groove on the outer surface of the comparison rod 402. Only when the comparison rod 402 moves to an appropriate distance, the positioning grooves on the outer surface of the comparison touch rod 408 can be parallel to each other. At this time, the synchronization block 409 can be engaged with the positioning groove on the outer surface of the comparison touch rod 408 under the elastic force of the extrusion spring 406, so that the trigger plate 405 is disengaged from the limit groove in the lock cylinder sleeve 101 under the action of the movement of the extrusion spring 406. At this time, the key 4 can be turned to drive the trigger sleeve 302 to rotate. Then, the movable rod 205 starts to move under the action of the spiral groove 312, and drags the pulling rod 204 through the unlocking sleeve 206, so that the extension rod 109 drives the passive tube 107 to rotate. Then, under the rotation of the passive tube 107, the towing belt 105 is wound by the winding rod 106, so that the hook 104 is no longer engaged with the card plate 103, and the anti-theft cover 5 can be opened.

[0061] If the dust cover 3 is pried open directly, the reset rod 21 moves under the elastic force of the trigger spring 202 and jams the locking plate 203 in the locking groove 108, so that the passive tube 107 cannot rotate, and the anti-theft cover 5 naturally cannot be opened. At the same time, the alarm sensing device 102 sounds an alarm. To cancel the alarm, it is necessary to use the key 4 to unlock it normally. By moving the unlocking sleeve 206, the movable sleeve 201 is pushed to move, so that the locking plate 203 is no longer stuck in the locking groove 108, and the reset rod 21 is pushed by the movable sleeve 201 under the action of the limit ring and returns to its initial state, and then the alarm sensing device 102 stops sounding the alarm.

[0062] As described above, it is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. An anti-stealing electricity smart meter, comprising a meter box (1), characterized in that: A digital display (2) for displaying the current power consumption is fixedly installed at the inner end of the meter box (1). A dust-proof cover (3) for shielding wind, rain and dust is arranged on the left side of the meter box (1). An anti-theft shell (6) is fixedly welded at the inner end of the meter box (1). An anti-theft cover (5) is rotatably installed at the left end of the anti-theft shell (6). A clamping plate (103) is fixedly installed at the right end of the anti-theft cover (5). A hook (104) is rotatably installed at the right end of the anti-theft shell (6), and the hook (104) is clamped in the clamping plate (103). A winding rod (106) is rotatably installed at the right end of the anti-theft shell (6). A towing belt (105) is wound around the outer surface of the winding rod (106), and the free end of the towing belt (105) is fixedly connected to the end of the hook (104) away from the anti-theft cover (5). An alarm induction device (102) is fixedly installed at the inner end of the meter box (1). A lock core sleeve (101) is fixedly installed at the front end inside the meter box (1). A key (4) is arranged on the left side of the lock core sleeve (101), and an anti-theft unlocking device that can only be opened by the key (4) is arranged inside the lock core sleeve (101); A reset rod (21) is slidably installed at the inner end of the meter box (1). The reset rod (21) corresponds to the alarm induction device (102). A passive pipe (107) is rotatably installed at the right end of the anti-theft shell (6), and the passive pipe (107) is fixedly connected to the winding rod (106). A movable sleeve (201) is slidably installed on the outer surface of the reset rod (21). The movable sleeve (201) is located on the right side of the unlocking sleeve (206); An unlocking sleeve (206) is sleeved on the outer surface of the reset rod (21). An extension rod (109) is fixedly installed at one end of the unlocking sleeve (206) close to the reset rod (21). A pulling rod (204) is rotatably installed at the end of the extension rod (109) away from the passive pipe (107). The free end of the pulling rod (204) is rotatably connected to the unlocking sleeve (206). When the unlocking sleeve (206) moves towards the alarm induction device (102), the passive pipe (107) can be driven to rotate through the extension rod (109); The reset rod (21) is connected to the alarm induction device (102) through a trigger spring (202). A movable sleeve (201) is slidably installed on the outer surface of the reset rod (21). A locking plate (203) is fixedly welded on the outer surface of the movable sleeve (201). The locking plate (203) is parallel to the passive pipe (107), and a locking groove (108) is formed on the outer surface of the passive pipe (107). A limiting ring is fixedly installed on the outer surface of the reset rod (21).

2. The intelligent electric meter for preventing electricity theft according to claim 1, characterized in that: The anti-theft unlocking device includes a trigger sleeve (302). The trigger sleeve (302) is rotatably installed at the inner end of the lock core sleeve (101). A lock ring (301) is fixedly installed on the outer surface of the trigger sleeve (302). A plurality of rectangular holes are formed on the outer surface of the trigger sleeve (302), and a stabilizing shell (303) is inserted into each rectangular hole. The stabilizing shell (303) is fixedly connected to the lock ring (301).

3. The intelligent electric meter for preventing electricity theft according to claim 2, characterized in that: The inner end of the stable shell (303) is fixedly installed with a synchronous pipe (311). The inner end of the upper side of the synchronous pipe (311) is slidably installed with a locking block (304). The inner end of the lock core sleeve (101) is fixedly installed with a plurality of clamping blocks (110), and the plurality of clamping blocks (110) are all in contact with the outer surface of the locking block (304).

4. The intelligent electric meter for preventing electricity theft according to claim 3, characterized in that: A plurality of contact rods (306) are slidably installed at the inner end of the stable shell (303). The right ends of the contact rods (306) penetrate into the synchronous pipe (311). Passive grooves (310) are formed on the outer surfaces of the contact rods (306), and triangular blocks (307) are arranged inside the passive grooves (310), and the triangular blocks (307) are fixedly connected to each other.

5. The intelligent electric meter for preventing electricity theft according to claim 4, characterized in that: A toggle plate (309) is rotatably installed at the front end of the inner side of the stable shell (303). A push rod (308) is rotatably installed at one end of the triangular block (307) close to the toggle plate (309), and the free end of the push rod (308) is rotatably connected to the toggle plate (309).

6. An anti - electricity - theft intelligent electric meter according to claim 3, characterized in that: A locking shell (401) is fixedly installed at the inner end of the trigger sleeve (302). A comparison rod (402) penetrates through the inner end of the locking shell (401). A plurality of comparison cylinders (404) are fixedly installed at the bottom end of the inner side of the locking shell (401), and the comparison cylinders (404) are fixedly connected to each other.

7. An anti-stealing electricity smart meter according to claim 6, characterized in that: Comparison contact rods (408) penetrate through the inner ends of the comparison cylinders (404). Grooves with different depths are formed on the outer surface of the comparison rod (402), and the grooves correspond to the comparison contact rods (408). A picking plate (405) is slidably installed at the inner end of the locking shell (401). A synchronous block (409) is fixedly installed at the right end of the picking plate (405), and the synchronous block (409) corresponds to the comparison contact rod (408).

8. An anti-stealing electricity smart meter according to claim 3, characterized in that: A spiral groove (312) is formed on the outer surface of the trigger sleeve (302). A movable rod (205) is fixedly installed at the upper end of the unlocking sleeve (206), and one end of the movable rod (205) far from the unlocking sleeve (206) penetrates into the spiral groove (312). When the trigger sleeve (302) rotates, the spiral groove (312) drives the movable rod (205) to move.

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