Anti-disassembly alarm-linked anti-theft structure of intelligent electric energy metering box

Abstract

The invention relates to the technical field of intelligent power grids, and discloses an anti-disassembly alarm-linked anti-theft structure of an intelligent electric energy metering box, which comprises an electric energy metering box for protecting an electric energy metering element, and an alarm arranged on the electric energy metering box, the mounting seat is arranged on the box door of the electric energy metering box; the anti-theft unit is connected with the mounting seat and is inserted into the electric energy metering box to complete the closing work of a box door in the electric energy metering box; the anti-theft unit comprises a locking assembly and a connecting cavity which are arranged in the mounting seat, a protection assembly connected with the connecting cavity, and an inserting assembly which is arranged on the mounting seat and is connected with the locking assembly; the electric energy metering box is a component of an intelligent power grid, the adjusting seat does not limit the rotation angle of the transmission hook claw by changing the position of the adjusting seat, and at the moment, the first locking assembly can drive the second locking assembly to move through the switching assembly, so that the opening work of the box door can be completed.

Description

Technical Field

[0001] This invention relates to the field of smart grid technology, specifically to an anti-theft structure for a smart energy metering box with anti-disassembly alarm linkage. Background Technology

[0002] Electricity metering boxes are an integral part of smart grids and core metering equipment in power systems, suitable for 3-35kV high and low voltage scenarios. The core consists of a current transformer, electricity meter, enclosure, and smart module, using electromagnetic induction technology to convert high and low voltage and large and small current signals for accurate metering. They feature electricity statistics, fault monitoring, and anti-theft functions, supporting remote meter reading and data transmission. Available in various types based on materials and installation methods, their modular design adapts to both indoor and outdoor applications, providing reliable data support for electricity billing and grid optimization.

[0003] For example, Chinese patent CN107748284B discloses an electricity metering box, including a box body and a box cover. The box body is a rectangular structure with a hollow interior and an open front end, formed by a top plate, a bottom plate, a left side plate, a right side plate, and a back plate. The box cover closes the open end of the box body. The back plate is composed of a first connecting plate, a second connecting plate, a third connecting plate, and a fourth connecting plate connected sequentially from top to bottom. The first connecting plate is arranged vertically, the second connecting plate is arranged obliquely upward, the third connecting plate is arranged downward, and the fourth connecting plate is arranged vertically. The second connecting plate is provided with heat dissipation grooves, and the side of the third connecting plate near the open end of the box body is inclined downward. The box cover is made of transparent material.

[0004] However, existing metering boxes still have some problems. During routine maintenance, existing metering boxes only have one or more independent locking blocks for locking, making it easy for criminals to steal the electronic components inside. Therefore, existing metering boxes lack certain anti-theft functions, or rather, anti-theft is only achieved through a few independent locking blocks, which is too simplistic.

[0005] Therefore, how to prevent theft of electricity meter boxes is a problem that needs to be solved. Summary of the Invention

[0006] This invention provides an anti-theft structure for intelligent power metering boxes with anti-disassembly alarm linkage to solve the above-mentioned problems existing in the prior art.

[0007] The anti-theft structure of the intelligent power metering box with anti-disassembly alarm linkage includes:

[0008] An electricity metering box is used to protect the electricity metering elements, and an alarm is installed on the electricity metering box;

[0009] The mounting base is installed on the door of the power metering box;

[0010] The anti-theft unit is connected to the mounting base and, by being inserted into the electricity metering box, completes the closing of the box door.

[0011] The anti-theft unit includes a locking component and a connecting cavity disposed in the mounting base, a protective component connected to the connecting cavity, and a plug-in component disposed on the mounting base and connected to the locking component;

[0012] The locking assembly includes a first locking component and a second locking component built into the mounting base, and a switching component for connecting the first locking component and the second locking component. When the key and the switching component are working simultaneously, the first locking component and the second locking component can move away from the door to complete the opening of the door. The alarm is existing technology and includes, but is not limited to, multiple vision sensors, a main control unit connected to the vision sensors, and an alarm connected to the main control unit. The vision sensors collect image information of the area where the electricity metering box is located, and the alarm starts to work and sounds an alarm when a person uses an abnormal method to unlock the door.

[0013] Furthermore, the first locking component includes a lock seat movably disposed on the mounting base, a drive block sleeved on the lock seat, a first locking block slidably connected to the mounting base, and guide shafts symmetrically disposed on the first locking block;

[0014] The mounting base is provided with a first sliding groove, the guide shaft is located in the first sliding groove, and the first locking block is also provided with a placement groove. By changing the position of the driving block in the placement groove, the first locking block is driven to move.

[0015] The key can be inserted into the lock seat and drive the lock seat to rotate.

[0016] Furthermore, the second locking assembly includes a fixed base fixedly disposed in the mounting base, a through rod passing through the fixed base, a return spring sleeved on the through rod and abutting against the fixed base, a second locking block connected to the through rod, a slide block disposed on the through rod and slidably connected to the mounting base, and a drive shaft and a third locking block disposed on the slide block;

[0017] The switching component abuts against the drive shaft;

[0018] The slide block is provided with a sliding shaft and a second sliding groove formed on the mounting base, wherein the sliding shaft is located in the second sliding groove.

[0019] Furthermore, the switching assembly includes a rotary motor fixedly installed in the mounting base, an adjusting screw connected to the output end of the rotary motor, an adjusting seat movably connected to the mounting base, and a switching part disposed in the mounting base;

[0020] The adjusting seat includes a rotating block, a first adjusting rod connected to the rotating block, and a second adjusting rod and a third adjusting rod disposed on both sides of the first adjusting rod;

[0021] The second and third adjusting rods have a predetermined elasticity.

[0022] Furthermore, the second adjusting rod includes two second straight segments and a second transition segment for connecting the two second straight segments, thereby forming a Z-shaped structure. The third adjusting rod includes two third straight segments with predetermined angles and a third transition segment for connecting the third straight segments, the third transition segment having a predetermined curvature.

[0023] The first adjusting rod abuts against the threaded part of the adjusting screw;

[0024] By rotating the motor, the position of the adjusting seat is changed, and by changing the positions of the second and third adjusting rods, the device can be locked and unlocked.

[0025] Furthermore, the switching unit includes a drive shaft disposed on the mounting base and rotatably connected to the mounting base, a protruding ring and a torsion spring sleeved on the drive shaft, a drive hook sleeved on the protruding ring and connected to the torsion spring, the drive hook having a pre-set drive groove, and a stop block inserted into the drive groove.

[0026] Furthermore, the end of the stop block away from the drive shaft is provided with a U-shaped through hole, the third adjusting rod is located in the U-shaped through hole, and the distance between the two inner walls of the U-shaped through hole is greater than the thickness of the third adjusting rod;

[0027] The stop block is also provided with a protruding end, and there is a gap between the stop block and the inner wall of the drive groove;

[0028] When locked, the top of the stop block abuts against the protruding ring and the third adjusting rod abuts against the transmission hook, limiting the rotation angle of the transmission hook;

[0029] When unlocked, the third adjusting rod moves the stop away from the drive shaft and the third adjusting rod away from the drive hook, allowing the drive hook to rotate and deform the third adjusting rod.

[0030] The first locking block is provided with a protruding end, which is located on both sides of the drive shaft and the transmission hook.

[0031] Furthermore, the protective assembly includes a connecting seat disposed on the connecting cavity, a drive ring rotatably connected to the connecting seat, a plurality of arc-shaped connecting holes uniformly provided on the drive ring, a limiting rod passing through the arc-shaped connecting holes and connected to the connecting seat, a plurality of elastic connecting rods uniformly disposed on the drive ring, and a sealing rod connected to the connecting rods.

[0032] The sealing rod is rotatably connected to the connecting seat via a rotating shaft.

[0033] Furthermore, the plug-in assembly includes a limiting seat fixedly connected to the mounting base, a rotating seat rotatably disposed on the limiting seat and connected to the transmission shaft, a rotating motor fixedly mounted on the rotating seat, a rotating fan blade connected to the output end of the rotating motor, an abutment seat slidably disposed on the rotating seat, a transmission part for connecting the rotating seat and the abutment seat, a plurality of heat dissipation holes opened on the bottom and circumferential direction of the abutment seat, and a plurality of exhaust pipes evenly disposed on the abutment seat;

[0034] The output end of the exhaust pipe is located inside the lock seat.

[0035] Furthermore, the transmission unit includes at least two drive grooves formed in the circumferential direction of the rotating seat, the two drive grooves being annular and intersecting, a support shaft disposed on the abutment seat, a guide block connected to one end of the support shaft, a gear disposed at the other end of the support shaft, and a gear ring meshing with the gear and disposed on the abutment seat.

[0036] The guide block is located in the drive groove, and the guide block is rugby ball shaped with a curved side that fits against the rotating seat.

[0037] Beneficial Effects: This invention discloses an anti-theft structure for an intelligent power metering box with anti-disassembly alarm linkage. The aforementioned power metering box is a component of the smart grid. To achieve anti-theft protection for the power metering box, this device includes a switching component, a first locking component, and a second locking component. When the switching component is not in operation, the lock seat is rotated using a key. Since the switching component is not in operation, the rotation angle of the transmission hook is limited. Even if the first locking block can retract into the mounting base, the second locking block cannot retract directly into the mounting base due to the transmission hook, thus still achieving locking. When the switching component is in operation, the position of the adjusting seat is changed so that the adjusting seat does not restrict the rotation angle of the transmission hook. At this time, the first locking component can drive the second locking component to move through the switching component, thereby enabling the box door to be opened. Simultaneously, this device is equipped with an alarm that can sound when unconventional methods are used to break in. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the anti-theft structure of the intelligent power metering box with anti-disassembly alarm linkage of the present invention;

[0039] Figure 2 This is a schematic diagram of the anti-theft unit structure of the present invention;

[0040] Figure 3This is a schematic diagram of the protective component structure of the present invention;

[0041] Figure 4 This is a schematic diagram of the locking assembly structure of the present invention;

[0042] Figure 5 This is a schematic diagram of the locking assembly of the present invention;

[0043] Figure 6 This is a schematic diagram of the switching component of the present invention;

[0044] Figure 7 This is a schematic diagram of the switching unit structure of the present invention;

[0045] Figure 8 This is a schematic diagram of the transmission hook structure of the present invention;

[0046] Figure 9 This is a schematic diagram of the stop structure of the present invention;

[0047] Figure 10 This is a cross-sectional view of the plug-in assembly of the present invention;

[0048] Figure 11 This is a schematic diagram of the plug-in assembly of the present invention;

[0049] Figure 12 This is a schematic diagram of the gears in this invention;

[0050] Figure 13 This is a schematic diagram of the drive slot of the present invention;

[0051] Figure 14 This is a schematic diagram of the heat dissipation holes of the present invention.

[0052] Explanation of reference numerals in the attached drawings: 1. Electricity metering box; 2. Mounting base; 3. Anti-theft unit; 31. Plug-in assembly; 311. Limit seat; 312. Rotating seat; 313. Rotating motor; 314. Rotating fan blade; 315. Drive slot; 316. Abutment seat; 317. Guide block; 318. Gear; 319. Exhaust pipe; 3110. Heat dissipation hole; 3111. Gear ring; 32. Connecting cavity; 33. Protective assembly; 331. Connecting seat; 332. Drive ring; 333. Connecting rod; 334. Sealing plate; 335. Rotating shaft; 34. Locking assembly; 341. Lock seat; 342. Drive block; 343. 344. First locking block; 345. Guide shaft; 346. Second locking assembly; 3451. Slide; 3452. Fixed seat; 3453. Second locking block; 3454. Through rod; 3455. Return spring; 3456. Drive shaft; 3457. Sliding shaft; 3458. Third locking block; 346. Switching assembly; 3461. Rotary motor; 3462. Adjusting screw; 3463. Adjusting seat; 34631. First adjusting rod; 34632. Second adjusting rod; 34633. Third adjusting rod; 3464. Transmission claw; 3465. Stop block; 3466. Transmission shaft; 3467. Raised ring. Detailed Implementation

[0053] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0054] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0055] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0056] This invention discloses an anti-theft structure for an intelligent energy metering box with anti-disassembly alarm linkage, referring to... Figures 1-14 ,include:

[0057] An electricity metering box 1 is used to protect the electricity metering components and to house an alarm device installed on the electricity metering box 1. A mounting base 2 is installed on the door of the electricity metering box 1. An anti-theft unit 3 is connected to the mounting base 2 and, by inserting into the electricity metering box 1, completes the closing of the door. The anti-theft unit 3 includes a locking assembly 34 and a connecting cavity 32 installed in the mounting base 2, a protective assembly 33 connected to the connecting cavity 32, and a plug-in assembly 31 installed on the mounting base 2 and connected to the locking assembly 34. The locking assembly 34 includes a first locking assembly and a second locking assembly 345 built into the mounting base 2, and a switching assembly 346 connecting the first locking assembly and the second locking assembly 345. When the key and the switching assembly 346 are activated simultaneously, the first locking assembly and the second locking assembly 345 can move away from the door, thus opening the door.

[0058] When the switching component 346 is not in operation, the lock base 341 is rotated using a key. Since the switching component 346 is not in operation, the rotation angle of the transmission pawl 3464 is limited. Even if the first locking block 343 can retract into the mounting base 2, the second locking block 3453 cannot retract directly into the mounting base 2 due to the transmission pawl 3464, thus still achieving locking. When the switching component 346 is in operation, the position of the adjusting base 3463 is changed so that it does not restrict the rotation angle of the transmission pawl 3464. At this time, the first locking component can drive the second locking component 345 to move through the switching component 346, thereby completing the opening of the box door. The device is also equipped with an alarm that can sound when unconventional methods are used to break in.

[0059] The first locking assembly includes a lock base 341 movably mounted on the mounting base 2, a drive block 342 sleeved on the lock base 341, a first locking block 343 slidably connected to the mounting base 2, and a guide shaft 344 symmetrically arranged on the first locking block 343. The mounting base 2 is provided with a first sliding groove, the guide shaft 344 is located in the first sliding groove, and the first locking block 343 is also provided with a placement groove. By changing the position of the drive block 342 in the placement groove, the first locking block 343 is moved. A key can be inserted into the lock base 341 and drive the lock base 341 to rotate.

[0060] When the key is inserted into the lock seat 341, since the lock seat 341 is compatible with the key, a certain driving force is applied to the key, which in turn drives the lock seat 341 to rotate. The moving lock seat 341 then causes the drive block 342 to rotate. The moving drive block 342 can rotate within the placement groove. Since the drive block 342 is hook-shaped, it can drive the first lock block 343 to move. And since the guide shaft 344 is located within the first sliding groove, the first lock block 343 can retract into the mounting base 2, completing the initial unlocking operation.

[0061] The second locking assembly 345 includes a fixed base 3452 fixedly disposed in the mounting base 2, a through rod 3454 passing through the fixed base 3452, a return spring 3455 sleeved on the through rod 3454 and abutting against the fixed base 3452, a second locking block 3453 connected to the through rod 3454, a slide block 3451 disposed on the through rod 3454 and slidably connected to the mounting base 2, and a drive shaft 3456 and a third locking block 3458 disposed on the slide block 3451; the switching assembly 346 abuts against the drive shaft 3456; the slide block 3451 is provided with a sliding shaft 3457 and a second sliding groove opened on the mounting base 2, the sliding shaft 3457 being located in the second sliding groove;

[0062] When in the unlocked state, the first locking block 343, moving linearly, can abut against the drive shaft 3456, thereby driving the drive shaft 3456 to move. The moving drive shaft 3456 can then drive the slide block 3451 to move linearly, and the moving slide block 3451 can drive the second locking block 3453 to move, so that the second locking block 3453 can retract into the mounting base 2. During this process, the penetration amount of the through rod 3454 on the fixed base 3452 increases, thereby increasing the deformation of the return spring 3455. Therefore, after the key leaves the lock base 341, under the influence of the return spring 3455, the second locking block 3453 can be positioned in the initial position. At the same time, through the drive shaft 3456 and the transmission pawl 3464, the first locking block 343 can also be positioned in the initial position, completing the locking of the door. During the unlocking process, the first locking block 343 and the second locking block 3453 need to work synchronously to complete the unlocking.

[0063] Compared to a single locking structure, this design significantly enhances security. When criminals use conventional prying methods such as forceful prying or single-point damage, applying force to only one locking block will not unlock the cabinet, effectively preventing the risk of the cabinet being opened due to single-point locking failure. Simultaneously, after the key leaves the lock base 341, the return spring 3455 uses its own elastic potential energy to automatically reset the second locking block 3453 to its initial locking position. This, along with the drive shaft 3456 and transmission pawl 3464, synchronously resets the first locking block 343, forming a double automatic locking protection system. This prevents the locking blocks from becoming loose or partially unlocked due to accidental activation or slight vibration; it also prevents criminals from unlocking the cabinet through non-compliant means, thus improving the structure's resistance to hacking.

[0064] The switching assembly 346 includes a rotary motor 3461 fixedly mounted in the mounting base 2, an adjusting screw 3462 connected to the output end of the rotary motor 3461, an adjusting seat 3463 movably connected to the mounting base 2, and a switching part disposed in the mounting base 2; the adjusting seat 3463 includes a rotating block, a first adjusting rod 34631 connected to the rotating block, and a second adjusting rod 34632 and a third adjusting rod 34633 disposed on both sides of the first adjusting rod 34631; the second adjusting rod 34632 and the third adjusting rod 34633 have predetermined elasticity; the first The second adjusting rod 34632 includes two second straight segments and a second transition segment for connecting the two second straight segments, thereby forming a Z-shaped structure. The third adjusting rod 34633 includes two third straight segments with predetermined angles and a third transition segment for connecting the third straight segments, the third transition segment having a predetermined arc. The first adjusting rod 34631 abuts against the thread in the adjusting screw 3462. By rotating the motor 3461, the position of the adjusting seat 3463 is changed. By changing the positions of the second adjusting rod 34632 and the third adjusting rod 34633, the locking and unlocking of the device can be achieved.

[0065] When in the unlocked state, the rotary motor 3461 starts working. The rotating motor 3461 drives the adjusting screw 3462 to move. Since the first adjusting rod 34631 abuts against the thread, the rotation of the adjusting screw 3462 drives the adjusting seat 3463 to move, thereby moving the third adjusting rod 34633 away from the transmission hook 3464. At this time, the moving third adjusting rod 34633 also drives the stop block 3465 to move, thus moving the stop block 3465 away from the transmission shaft 3466, thereby stopping the... When block 3465 is away from the rotation area of ​​the protruding ring 3467, the transmission pawl 3464 can rotate and abut against the protruding ring 3467 during the rotation, thereby driving the transmission shaft 3466 to rotate. Since the stop block 3465 is away from the protruding ring 3467, the rotation angle of the transmission pawl 3464 can be increased, thereby enabling it to drive the second locking component 345 to move. That is, the device can only unlock when the switching component 346 is working. When it is not working, it cannot unlock even if a key is inserted.

[0066] When in the locked state, the third adjusting rod 34633 abuts against the transmission hook 3464 and the stop block 3465 is located in the rotation area when the protruding ring 3467 rotates. Therefore, when the transmission hook 3464 starts to work, due to the influence of the third adjusting rod 34633 and the protruding ring 3467, the transmission hook 3464 can only rotate within a small range, making it difficult for the first locking block 343 to retract into the mounting base 2.

[0067] In the unlocked state, the second adjusting rod 34632 abuts against the first locking block 343, thereby applying a certain pressure to the first locking block 343, so that it can move within the first sliding groove, preventing the first locking block 343 from bouncing and ensuring the normal operation of the locking function. In the locked state, the second adjusting rod 34632 tilts upward so that one end of the second adjusting rod 34632 is located on the running path of the first locking block 343, so that the first locking block 343 cannot be fully retracted, thus preventing illegal unlocking.

[0068] The torsion spring ensures that the hook claw is in its initial position, thus maintaining the continuity of the device and achieving multiple anti-theft effects.

[0069] When the device unlocks, it must simultaneously meet the dual conditions of switching component 346 and key-driven lock block linkage. In the non-working state, even if a key is inserted, because the third adjusting rod 34633 abuts against the transmission hook 3464 and the stop block 3465 is within the rotation area of ​​the protruding ring 3467, the transmission hook 3464 can only rotate within a small range and cannot drive the first lock block 343 to fully retract. This mechanism eliminates the possibility of unlocking by conventional illegal means such as key probing or forcibly twisting the lock cylinder, significantly improving the anti-theft threshold. In the locked state, the second adjusting rod 34632 is tilted upward and one end is located on the running path of the first lock block 343, which can form a mechanical limit to prevent the first lock block 343 from being pushed or pried by external force and fully retracted. In the unlocked state, the second adjusting rod 34632 abuts against the first lock block 343 and applies pressure to prevent the first lock block 343 from bouncing and shifting due to vibration or impact. This ensures both accurate and stable unlocking action and prevents criminals from accidentally unlocking the lock block by external force, strengthening the structure's anti-interference capability.

[0070] The switching unit includes a drive shaft 3466 mounted on and rotatably connected to the mounting base 2, a protruding ring 3467 and a torsion spring sleeved on the drive shaft 3466, a drive hook 3464 sleeved on the protruding ring 3467 and connected to the torsion spring, a drive groove 315 pre-set on the drive hook 3464, and a stop block 3465 inserted into the drive groove 315; the end of the stop block 3465 away from the drive shaft 3466 is provided with a U-shaped through hole, the third adjusting rod 34633 is located in the U-shaped through hole, and the distance between the two inner walls of the U-shaped through hole is greater than the thickness of the third adjusting rod 34633; the stop block 346... The first locking block 3465 is also provided with a protruding end. There is a gap between the stop block 3465 and the inner wall of the drive groove 315. In the locked state, the top of the stop block 3465 abuts against the protruding ring 3467 and the third adjusting rod 34633 abuts against the transmission pawl 3464, limiting the rotation angle of the transmission pawl 3464. In the unlocked state, the third adjusting rod 34633 drives the stop block 3465 away from the drive shaft 3466 and the third adjusting rod 34633 away from the transmission pawl 3464, and the transmission pawl 3464 can rotate and deform the third adjusting rod 34633. The first locking block 343 is provided with a protruding end, and the protruding end and the drive shaft 3456 are located on both sides of the transmission pawl 3464.

[0071] The protective assembly 33 includes a connecting seat 331 disposed on the connecting cavity 32, a drive ring 332 rotatably connected to the connecting seat 331, a plurality of arc-shaped connecting holes evenly provided on the drive ring 332, a limiting rod passing through the arc-shaped connecting holes and connected to the connecting seat 331, a plurality of elastic connecting rods 333 evenly disposed on the drive ring 332, and a sealing rod connected to the connecting rods 333; the sealing rod is rotatably connected to the connecting seat 331 via a rotating shaft 335.

[0072] When the metering box needs to be opened, the operator pushes the drive ring 332. The moving drive ring 332 drives the connecting rod 333 to move, and the moving connecting rod 333 drives the sealing plate 334 to move. The moving sealing plate 334 can then rotate around the rotating shaft 335, thus exposing the key insertion port on the connecting seat 331, making it easier to insert the key. During non-operational periods, the key insertion port can be covered to prevent dust or debris from entering the port, causing deformation of the lock and increasing the difficulty of unlocking.

[0073] The plug-in assembly 31 includes a limiting seat 311 fixedly connected to the mounting base 2, a rotating seat 312 rotatably mounted on the limiting seat 311 and connected to the drive shaft 3466, a rotating motor 313 fixedly mounted on the rotating seat 312, a rotating fan blade 314 connected to the output end of the rotating motor 313, an abutment seat 316 slidably mounted on the rotating seat 312, a transmission part for connecting the rotating seat 312 and the abutment seat 316, a plurality of heat dissipation holes 3110 formed on the bottom and circumferential direction of the abutment seat 316, and a plurality of exhaust pipes 31 evenly arranged on the abutment seat 316. 9; The output end of the exhaust pipe 319 is located inside the lock seat 341; The transmission part includes at least two drive grooves 315 formed in the circumferential direction of the rotating seat 312, the two drive grooves 315 are annular and intersecting, a support shaft is provided on the abutment seat 316, a guide block 317 connected to one end of the support shaft, a gear 318 provided at the other end of the support shaft, and a gear ring 3111 meshing with the gear 318 and provided on the abutment seat 316; The guide block 317 is located inside the drive groove 315, the guide block 317 is rugby ball shaped and the side that fits against the rotating seat 312 is curved;

[0074] The limiting seat 311 is provided with a limiting groove for supporting the movement of the shaft; a certain annular area is reserved between the rotating seat 312 and the abutment seat 316, and the annular area is connected to the air inlet end of the exhaust pipe 319; through the above-mentioned structure, the accumulation of moisture and corrosive gas in the box can be reduced, the core components of the lock can be prevented from rusting and jamming, the locking structure can be ensured to be stable and effective for a long time, and thieves can be prevented from taking advantage of lock failure to break in; at the same time, the back-blowing structure can avoid the problem that the key hole is blocked, which will affect normal unlocking and may also create opportunities for thieves to damage it (such as forcibly pouring in foreign objects to damage the lock cylinder), ensuring the cleanliness of the lock seat 341 and the sensitivity of the lock, and eliminating the anti-theft loophole caused by the blockage of the key hole from the root.

[0075] When three locking operations are required, the moving drive shaft 3466 drives the rotating seat 312 to rotate. Since the rotating seat 312 has a circumferential drive groove 315 and the guide block 317 is located within the drive groove 315, the rotation of the rotating seat 312 raises the height of the guide block 317. Furthermore, because the guide block 317 is rugby ball-shaped (similar to an ellipse), the supporting shaft also drives the gear 318 to rotate. Simultaneously, since the gear 318 meshes with the gear ring 3111, supporting it, the rotation of the gear 318 along the axis of the rotating seat 312 lifts the abutment seat 316. Meanwhile, the toothed ring 3111 also allows the abutment seat 316 to rotate. Therefore, in the locked state, the raised abutment seat 316 can be inserted into the abutment hole that matches the abutment seat 316. This abutment hole is connected to the inside of the metering box. The abutment hole is located in the metering box. At the same time, the rotating fan blade 314 rotates under the drive of the rotating motor 313. Thus, in the locked state, gas can be introduced into the box, thereby reducing the temperature of the device during operation. In the unlocked state, the heat dissipation hole 3110 is connected to the annular area, thereby allowing gas to be introduced into the lock seat 341. This allows the lock seat 341 to be back-blown, removing dust remaining in the lock seat 341 and preventing dust from combining with moisture in the air to cause blockage of the lock hole.

[0076] Working principle description: When the key is inserted into the lock seat 341, since the lock seat 341 is compatible with the key, a certain driving force is applied to the key, which can drive the lock seat 341 to rotate. The moving lock seat 341 can then cause the drive block 342 to rotate. The moving drive block 342 can rotate in the placement groove. Since the drive block 342 is hook-shaped, it can drive the first lock block 343 to move. And since the guide shaft 344 is located in the first sliding groove, the first lock block 343 can retract into the mounting base 2, completing the initial unlocking work.

[0077] When in the unlocked state, the first locking block 343, moving linearly, can abut against the drive shaft 3456, thereby driving the drive shaft 3456 to move. The moving drive shaft 3456 can then drive the slide block 3451 to move linearly, and the moving slide block 3451 can drive the second locking block 3453 to move, so that the second locking block 3453 can retract into the mounting base 2. During this process, the penetration amount of the through rod 3454 on the fixed base 3452 increases, thereby increasing the deformation of the return spring 3455. Therefore, after the key leaves the lock base 341, under the influence of the return spring 3455, the second locking block 3453 can be positioned in the initial position. At the same time, through the drive shaft 3456 and the transmission pawl 3464, the first locking block 343 can also be positioned in the initial position, completing the locking of the door. During the unlocking process, the first locking block 343 and the second locking block 3453 need to work synchronously to complete the unlocking.

[0078] When in the unlocked state, the rotary motor 3461 starts working. The rotating motor 3461 drives the adjusting screw 3462 to move. Since the first adjusting rod 34631 abuts against the thread, the rotation of the adjusting screw 3462 drives the adjusting seat 3463 to move, thereby moving the third adjusting rod 34633 away from the transmission hook 3464. At this time, the moving third adjusting rod 34633 also drives the stop block 3465 to move, thus moving the stop block 3465 away from the transmission shaft 3466, thereby stopping the... When block 3465 is away from the rotation area of ​​the protruding ring 3467, the transmission pawl 3464 can rotate and abut against the protruding ring 3467 during the rotation, thereby driving the transmission shaft 3466 to rotate. Since the stop block 3465 is away from the protruding ring 3467, the rotation angle of the transmission pawl 3464 can be increased, thereby enabling it to drive the second locking component 345 to move. That is, the device can only unlock when the switching component 346 is working. When it is not working, it cannot unlock even if a key is inserted.

[0079] When in the locked state, the third adjusting rod 34633 abuts against the transmission hook 3464 and the stop block 3465 is located in the rotation area when the protruding ring 3467 rotates. Therefore, when the transmission hook 3464 starts to work, due to the influence of the third adjusting rod 34633 and the protruding ring 3467, the transmission hook 3464 can only rotate within a small range, making it difficult for the first locking block 343 to retract into the mounting base 2.

[0080] In the unlocked state, the second adjusting rod 34632 abuts against the first locking block 343, thereby applying a certain pressure to the first locking block 343, so that it can move within the first sliding groove, preventing the first locking block 343 from bouncing and ensuring the normal operation of the locking function. In the locked state, the second adjusting rod 34632 tilts upward so that one end of the second adjusting rod 34632 is located on the running path of the first locking block 343, so that the first locking block 343 cannot be fully retracted, thus preventing illegal unlocking.

[0081] When the metering box needs to be opened, the operator pushes the drive ring 332, which in turn drives the connecting rod 333 to move. The connecting rod 333 then drives the sealing plate 334 to move, which in turn rotates around the rotating shaft 335. This allows the key insertion port on the connecting seat 331 to be exposed, making it easier to insert the key. In non-operational stages, the key insertion port can be covered to prevent dust or debris from entering the port, causing deformation of the lock and increasing the difficulty of unlocking.

[0082] When three locking operations are required, the moving drive shaft 3466 drives the rotating seat 312 to rotate. Since the rotating seat 312 has a circumferential drive groove 315 and the guide block 317 is located within the drive groove 315, the rotation of the rotating seat 312 raises the height of the guide block 317. Furthermore, because the guide block 317 is rugby ball-shaped (similar to an ellipse), the supporting shaft also drives the gear 318 to rotate. Simultaneously, since the gear 318 meshes with the gear ring 3111, supporting it, the rotation of the gear 318 along the axis of the rotating seat 312 lifts the abutment seat 316. Meanwhile, the toothed ring 3111 also allows the abutment seat 316 to rotate. Therefore, in the locked state, the raised abutment seat 316 can be inserted into the abutment hole that matches the abutment seat 316. This abutment hole is connected to the inside of the metering box. The abutment hole is located in the metering box. At the same time, the rotating fan blade 314 rotates under the drive of the rotating motor 313. Thus, in the locked state, gas can be introduced into the box, thereby reducing the temperature of the device during operation. In the unlocked state, the heat dissipation hole 3110 is connected to the annular area, thereby allowing gas to be introduced into the lock seat 341. This allows the lock seat 341 to be back-blown, removing dust remaining in the lock seat 341 and preventing dust from combining with moisture in the air to cause blockage of the lock hole.

[0083] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and all such equivalent transformations fall within the protection scope of the present invention.

Claims

1. An anti-theft structure for an intelligent energy metering box with anti-disassembly alarm linkage, characterized in that: include: An electricity metering box (1) is used to protect the electricity metering element and to install an alarm on the electricity metering box (1); Mounting base (2) is installed on the door of the power metering box (1); The anti-theft unit (3) is connected to the mounting base (2) and is inserted into the power metering box (1) to complete the closing of the box door in the power metering box (1); The anti-theft unit (3) includes a locking assembly (34) and a connecting cavity (32) disposed in the mounting base (2), a protective assembly (33) connected to the connecting cavity (32), and a plug-in assembly (31) disposed on the mounting base (2) and connected to the locking assembly (34). The locking assembly (34) includes a first locking assembly and a second locking assembly (345) built into the mounting base (2), and a switching assembly (346) for connecting the first locking assembly and the second locking assembly (345). When the key and the switching assembly (346) work at the same time, the first locking assembly and the second locking assembly (345) can move away from the door and complete the opening of the door.

2. The anti-theft structure of the intelligent power metering box with anti-disassembly alarm linkage according to claim 1, characterized in that: The first locking component includes a lock seat (341) movably disposed on the mounting base (2), a drive block (342) sleeved on the lock seat (341), a first locking block (343) slidably connected to the mounting base (2), and a guide shaft (344) symmetrically disposed on the first locking block (343). The mounting base (2) is provided with a first sliding groove, the guide shaft (344) is located in the first sliding groove, and the first locking block (343) is also provided with a placement groove. By changing the position of the driving block (342) in the placement groove, the first locking block (343) is driven to move. The key can be inserted into the lock seat (341) and drive the lock seat (341) to rotate.

3. The anti-theft structure of the intelligent power metering box with anti-disassembly alarm linkage according to claim 2, characterized in that: The second locking assembly (345) includes a fixed base (3452) fixedly disposed in the mounting base (2), a through rod (3454) passing through the fixed base (3452), a return spring (3455) sleeved on the through rod (3454) and abutting against the fixed base (3452), a second locking block (3453) connected to the through rod (3454), a slide (3451) disposed on the through rod (3454) and slidably connected to the mounting base (2), and a drive shaft (3456) and a third locking block (3458) disposed on the slide (3451). The switching component (346) abuts against the drive shaft (3456); The slide (3451) is provided with a sliding shaft (3457) and a second sliding groove opened on the mounting base (2), wherein the sliding shaft (3457) is located in the second sliding groove.

4. The anti-theft structure of the intelligent power metering box with anti-disassembly alarm linkage according to claim 3, characterized in that: The switching assembly (346) includes a rotary motor (3461) fixedly installed in the mounting base (2), an adjusting screw (3462) connected to the output end of the rotary motor (3461), an adjusting seat (3463) movably connected to the mounting base (2), and a switching part provided in the mounting base (2); The adjusting seat (3463) includes a rotating block, a first adjusting rod (34631) connected to the rotating block, and a second adjusting rod (34632) and a third adjusting rod (34633) disposed on both sides of the first adjusting rod (34631). The second adjusting rod (34632) and the third adjusting rod (34633) have a predetermined elasticity.

5. The anti-theft structure of the intelligent power metering box with anti-disassembly alarm linkage according to claim 4, characterized in that: The second adjusting rod (34632) includes two second straight segments and a second transition segment for connecting the two second straight segments, thereby forming a Z-shaped structure. The third adjusting rod (34633) includes two third straight segments with predetermined angles and a third transition segment for connecting the third straight segments, the third transition segment having a predetermined curvature. The first adjusting rod (34631) abuts against the thread in the adjusting screw (3462); By rotating the motor (3461), the position of the adjusting seat (3463) is changed, and by changing the positions of the second adjusting rod (34632) and the third adjusting rod (34633), the device can be locked and unlocked.

6. The anti-theft structure of the intelligent power metering box with anti-disassembly alarm linkage according to claim 5, characterized in that: The switching unit includes a drive shaft (3466) disposed on the mounting base (2) and rotatably connected to the mounting base (2), a protruding ring (3467) and a torsion spring sleeved on the drive shaft (3466), a drive hook (3464) sleeved on the protruding ring (3467) and connected to the torsion spring, a drive groove (315) pre-set on the drive hook (3464), and a stop block (3465) inserted into the drive groove (315).

7. The anti-theft structure of the intelligent power metering box with anti-disassembly alarm linkage according to claim 6, characterized in that: The stop block (3465) has a U-shaped through hole at one end away from the drive shaft (3466), and the third adjusting rod (34633) is located in the U-shaped through hole. The distance between the two inner walls of the U-shaped through hole is greater than the thickness of the third adjusting rod (34633). The stop block (3465) is also provided with a protruding end, and there is a gap between the stop block (3465) and the inner wall of the drive groove (315); In the locked state, the top of the stop (3465) abuts against the protruding ring (3467) and the third adjusting rod (34633) abuts against the transmission hook (3464), limiting the rotation angle of the transmission hook (3464); When unlocked, the third adjusting rod (34633) drives the stop (3465) away from the drive shaft (3466) and the third adjusting rod (34633) away from the drive hook (3464), and the drive hook (3464) can rotate and deform the third adjusting rod (34633). The first locking block (343) is provided with a protruding end, which is located on both sides of the drive shaft (3456) and the transmission claw (3464).

8. The anti-theft structure of the intelligent power metering box with anti-disassembly alarm linkage according to claim 7, characterized in that: The protective component (33) includes a connecting seat (331) disposed on the connecting cavity (32), a drive ring (332) rotatably connected to the connecting seat (331), a plurality of arc-shaped connecting holes uniformly disposed on the drive ring (332), a limiting rod connected to the connecting seat (331) through the arc-shaped connecting holes, a plurality of elastic connecting rods (333) uniformly disposed on the drive ring (332), and a sealing rod connected to the connecting rods (333); The sealing rod is rotatably connected to the connecting seat (331) via a rotating shaft (335).

9. The anti-theft structure of the intelligent power metering box with anti-disassembly alarm linkage according to claim 8, characterized in that: The plug-in assembly (31) includes a limiting seat (311) fixedly connected to the mounting base (2), a rotating seat (312) rotatably disposed on the limiting seat (311) and connected to the transmission shaft (3466), a rotating motor (313) fixedly mounted on the rotating seat (312), a rotating fan blade (314) connected to the output end of the rotating motor (313), an abutment seat (316) slidably disposed on the rotating seat (312), a transmission part for connecting the rotating seat (312) and the abutment seat (316), a plurality of heat dissipation holes (3110) opened on the bottom and circumferential direction of the abutment seat (316), and a plurality of exhaust pipes (319) evenly disposed on the abutment seat (316). The output end of the exhaust pipe (319) is located inside the lock seat (341).

10. The anti-theft structure of the intelligent power metering box with anti-disassembly alarm linkage according to claim 9, characterized in that: The transmission unit includes at least two drive grooves (315) formed in the circumferential direction of the rotating seat (312), the two drive grooves (315) being annular and intersecting, a support shaft disposed on the abutment seat (316), a guide block (317) connected to one end of the support shaft, a gear (318) disposed at the other end of the support shaft, and a gear ring (3111) meshing with the gear (318) and disposed on the abutment seat (316). The guide block (317) is located in the drive groove (315). The guide block (317) is rugby ball shaped and has an arc on one side that fits the rotating seat (312).

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