A single-phase power metering box

Abstract

This application relates to the technical field of electricity metering boxes, and discloses a single-phase electricity metering box, which includes an outer shell. The outer shell is injection molded from any one of PC+ABS, PC+ASA gold-containing plastic, or PP+LGF (long glass fiber reinforced polypropylene); or the outer shell is molded from high-performance SMC composite material / machined and welded from stainless steel. The outer shell includes a box body and an electricity meter switch box door rotatably connected to the box body. An outgoing switch is provided inside the box body, and a storage slot is opened on the electricity meter switch box door. An installation hole is opened on the bottom wall of the storage slot, and a sealing structure is provided inside the storage slot. The sealing structure includes two limiting vertical plates, and the installation hole is located between the two limiting vertical plates. An installation frame is provided on the side of the limiting vertical plates away from the bottom wall of the storage slot. A through hole aligned with the outgoing switch is opened on the installation frame. A sealing plate for sealing the installation hole is slidably arranged between the installation frame and the bottom wall of the storage slot. The sealing plate is located between the two limiting vertical plates. This application has the effect of reducing the entry of foreign objects into the electricity metering box.

Description

Technical Field

[0001] This application relates to the technical field of electricity metering boxes, and in particular to a single-phase electricity metering box. Background Technology

[0002] A single-phase power meter is a specialized device used to measure and record the electricity consumption of a single-phase AC power source. Commonly used single-phase power meter boxes are installed outdoors and are widely used in low-power electricity consumption scenarios such as residential buildings and shops.

[0003] In related technologies, single-phase electricity metering boxes include a box body and a box door. The box body is equipped with electrical devices such as an electricity meter, an incoming main switch, and an outgoing switch.

[0004] In environments with heavy rainfall or dust storms, when power outages are required for maintenance, users need to open the electricity meter box door and then disconnect the power to the outgoing line switch. This operation exposes the inside of the electricity meter box to the outside environment, allowing rainwater or dust to enter and potentially affect the electrical components inside. Summary of the Invention

[0005] In order to reduce the amount of rainwater or dust entering the electricity metering box during the opening and closing of the outgoing switch inside the electricity metering box, this application provides a single-phase electricity metering box.

[0006] This application provides a single-phase electricity metering box, which adopts the following technical solution:

[0007] A single-phase electricity metering box includes an outer shell, the outer shell comprising a housing and a meter switch box door rotatably connected to the housing. A third chamber is formed on the side of the housing facing the meter switch box door, and an outgoing switch is disposed within the third chamber. A mounting hole aligned with the outgoing switch is formed on the side of the meter switch box door facing the housing. A storage slot is formed on the side of the meter switch box door facing the third chamber, and a sealing structure for opening and closing the mounting hole is disposed within the storage slot. The sealing structure includes two limiting vertical plates disposed on the bottom wall of the storage slot and a limiting horizontal plate located below the mounting hole. The mounting hole is located between the two limiting vertical plates, and the lower parts of both limiting vertical plates are connected to the limiting horizontal plate. A mounting frame is disposed on the side of the limiting vertical plates away from the bottom wall of the storage slot, and a through hole aligned with the outgoing switch is formed on the mounting frame. A sealing plate for sealing the mounting hole is slidably disposed between the mounting frame and the bottom wall of the storage slot, and the sealing plate is located between the two limiting vertical plates.

[0008] By adopting the above technical solution, when the outgoing switch needs to be closed, the blocking plate is driven to rise, opening the mounting hole. The user can then operate the outgoing switch to switch the circuit on and off. This reduces the area of ​​the electricity metering box connected to the outside world, minimizing the entry of rainwater, dust, and other foreign objects into the electricity metering box and protecting the internal electrical devices. Conversely, the blocking plate is driven to descend, sealing the mounting hole and preventing foreign objects from entering the electricity metering box.

[0009] Optionally, the sealing plate has a groove on the side facing the bottom wall of the storage tank.

[0010] By adopting the above technical solution, the staff can use the groove to drive the sealing plate to rise, opening the mounting hole and making it easier for the staff to operate the outgoing switch; conversely, the staff can drive the sealing plate to fall, closing the mounting hole to prevent dust and other foreign objects from entering the third chamber and reduce damage to the electrical devices in the third chamber.

[0011] Optionally, the housing is rotatably connected to a meter box door located above the meter switch box door. A second chamber is opened on the side of the housing facing the meter box door. A meter insert is installed in the second chamber, and a meter body is inserted into the meter insert. A receiving groove is opened on the side of the meter box door facing the second chamber. An observation channel aligned with the meter body is opened on the bottom wall of the receiving groove. An observation frame is provided on the bottom wall of the receiving groove. A second observation hole communicating with the observation channel is opened on the side of the observation frame facing the second chamber. A protective plate made of transparent material is installed in the second observation hole.

[0012] By adopting the above technical solution, staff can observe the electricity meter in the second chamber through the second observation hole without opening the meter box door, which is convenient.

[0013] Optionally, a locking structure is provided between the meter switch box door and the meter box door, and a partition is provided on the box body between the meter box door and the meter switch box door. The locking structure includes a locking rod that is vertically slidably disposed on the bottom wall of the storage tank. A flexible locking hook is provided on one side of the locking rod along the length of the box body. A second insertion hole is opened on the lower inner wall of the receiving tank for the locking rod and the locking hook to pass through. A first insertion hole communicating with the second insertion hole is opened on the upper inner wall of the storage tank. A punch hole is opened on the partition for communicating with the second insertion hole. The locking hook can be hooked and engaged with the meter box door. An operating structure for driving the locking rod to rise and fall is provided on the sealing plate. An unlocking structure is provided on the meter box door for driving the locking hook to unlock from the meter box door.

[0014] By adopting the above technical solution, the operating structure drives the locking rod and the locking hook to rise together, and the locking rod and the locking hook pass through the first and second sockets together; during the movement of the locking component structure, the locking hook is first restricted by the door of the meter switch box, causing the hook part of the locking hook to deform. After the hook part of the locking hook passes through the second socket, the locking hook resets so that the hook part hooks and engages with the door of the meter box, so that the door of the meter box is not easy to open when the locking structure is not unlocked.

[0015] Optionally, the operating structure includes a gear rotatably connected to the bottom wall of the storage tank, a linkage rack disposed on the side of the locking rod away from the locking hook, and a drive rack disposed above the sealing plate. The gear is located on the side of the linkage rack away from the locking rod, and the linkage rack meshes with the gear. The drive rack is located on the side of the gear away from the linkage rack, and the drive rack meshes with the gear.

[0016] By adopting the above technical solution, the sealing plate is driven to descend, which in turn drives the drive rack to descend, which in turn drives the gear to rotate, which in turn drives the linkage rack, locking rod, and locking hook to rise together; conversely, the sealing plate is driven to rise, which ultimately causes the locking rod and locking hook to descend.

[0017] Optionally, the unlocking structure includes an unlocking block located on the side of the locking hook away from the locking rod and an active magnet horizontally slidably disposed on the side of the meter box door away from the box body. The unlocking block is slidably disposed on the lower inner wall of the storage slot, and an unlocking magnet is disposed on the side of the unlocking block facing the bottom wall of the receiving slot. The unlocking magnet and the active magnet are magnetically attracted to each other.

[0018] By adopting the above technical solution, the active magnet is driven to move. Since the active magnet and the unlocking magnet are magnetically attracted to each other, the active magnet drives the unlocking magnet and the unlocking block to move together. The unlocking block pushes the locking hook so that the locking hook no longer contacts the lower inner wall of the receiving groove, that is, the locking hook is released from the lock of the meter box door. At this time, the staff can drive the sealing plate to rise.

[0019] Optionally, a flexible operating hook is provided below the locking rod, and an operating groove is provided on the upper end face of the sealing plate for the locking rod and the operating hook to be inserted. An operating bar is provided in the operating groove, and the operating hook can hook and cooperate with the operating bar.

[0020] By adopting the above technical solution, the sealing plate is driven to rise, which in turn drives the rack to rotate the gear. The gear then drives the locking rod and the operating hook to descend, so that the operating hook is inserted into the operating groove and hooks with the operating bar, thereby locking the sealing plate and keeping the mounting hole open. This eliminates the need for operators to support the sealing plate when operating the outgoing switch, thus saving effort.

[0021] Optionally, the sealing plate is provided with an unlocking component. The sealing plate has an operating hole that connects to the operating groove on its side along the length of the box. The operating hole is located on the side of the operating bar away from the operating hook. The upper inner wall of the operating hole is coplanar with the lower surface of the operating bar. The lower inner wall of the operating hole has a sliding groove. The sealing plate has a sliding hole that connects to the sliding groove on the side away from the third chamber. The unlocking component includes an operating rod that passes through the operating hole, a sliding rod that is slidably disposed in the sliding groove, and a sliding block that is slidably disposed in the sliding hole. The sliding rod is connected to the lower part of the operating rod, and one side of the sliding rod is connected to the sliding block.

[0022] By adopting the above technical solution, the operator drives the slider to move horizontally, and the slider drives the slide rod and the operating rod to move in the direction of the operating hook. The operating rod pushes the operating hook so that the hook part of the operating hook no longer contacts the lower surface of the operating bar, and the operating hook no longer engages with the operating bar. At this time, the operator can drive the sealing plate to descend.

[0023] Optionally, multiple mounting holes and sealing plates are provided, and the multiple mounting holes and sealing plates are distributed in a horizontal direction. The sealing plate has a slot for inserting an operating rod on the side away from the operating hole. An iron plate is provided on the side of the operating rod away from the operating slot. A connecting magnet is provided on the bottom wall of the slot.

[0024] By adopting the above technical solution, the slider is driven to move away from the operating hook, so that the sliding rod and the operating rod move together away from the operating hook, causing the operating rod to be inserted into the slot on the adjacent sealing plate, so that the two sealing plates are linked and can move up and down synchronously.

[0025] Optionally, a support structure for connecting the outgoing switch is provided on the inner wall of the third chamber away from the meter switch box door. The support structure includes a support base and a support bar disposed on the side of the support base facing the meter switch box door. The support base is disposed on the inner wall of the third chamber away from the meter switch box door. The outgoing switch is mounted on the support bar and can move along the length of the support bar.

[0026] By adopting the above technical solution and setting up a support structure, the outgoing switch is made closer to the mounting hole, so that the staff does not need to put their hands into the third chamber to operate the outgoing switch, thus improving the convenience of operation.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. When the outgoing switch needs to be closed, the drive sealing plate rises to open the mounting hole, allowing the user to operate the outgoing switch to switch the circuit on and off. This minimizes the area of ​​the electricity metering box connected to the outside world, reducing the entry of rainwater, sand, and other foreign objects into the electricity metering box and protecting the internal electrical devices. Conversely, the drive sealing plate descends to seal the mounting hole, preventing foreign objects from entering the electricity metering box.

[0029] 2. A locking lever and a locking hook are used to connect the meter box door to the meter switch box door, further locking the meter box door and preventing unauthorized personnel from unlocking the locks on the meter box door and opening it, thus preventing electricity theft; in addition, the locking structure is hidden inside the outer casing to avoid being noticed by unauthorized personnel. Attached Figure Description

[0030] Figure 1 This is a structural schematic diagram of an embodiment of this application;

[0031] Figure 2 This is a schematic diagram highlighting the internal structure of the box;

[0032] Figure 3 This is an exploded view highlighting the structure of the incoming line switch protective door;

[0033] Figure 4 This is an exploded view highlighting the structure of the meter box door;

[0034] Figure 5 This is a partial schematic diagram highlighting the sealing structure;

[0035] Figure 6 yes Figure 5 An enlarged schematic diagram of part A in the middle;

[0036] Figure 7 It is a partial sectional view that highlights the operating structure;

[0037] Figure 8 yes Figure 1 Enlarged diagram of part B.

[0038] Reference numerals: 100, outer casing; 200, housing; 201, receiving slot; 202, positioning strip; 203, vertical partition; 204, horizontal partition; 205, partition bar; 206, first chamber; 207, second chamber; 208, third chamber; 209, main incoming switch; 210, data collector plug-in; 211, data collector body; 212, plug-in assembly; 213, meter plug-in; 214, meter body; 215, outgoing switch; 216, support structure; 217, support base; 218, support. Support bar; 219. Punch hole; 300. Incoming line switch box door; 301. Fixing groove; 302. First observation groove; 303. Fixing hole; 304. Fixing frame; 305. Incoming line switch protective door; 306. First observation hole; 307. Baffle plate; 308. Protrusion; 309. Data collector viewing window protective door; 400. Meter box door; 401. Receiving groove; 402. Observation channel; 403. Observation frame; 404. Second observation hole; 405. Protective plate; 406. Limiting frame; 407. Snap-fit ​​structure; 40 8. Locking strip; 409. Locking block; 410. Locking hole; 411. Limiting seat; 412. Limiting groove; 413. Connecting block; 414. Meter viewing window protective door; 415. Second insertion hole; 500. Meter switch box door; 501. Storage slot; 502. Mounting hole; 503. Sealing structure; 504. Limiting horizontal plate; 505. Limiting vertical plate; 506. Mounting frame; 507. Sealing plate; 508. Through hole; 509. Groove; 510. Locking structure; 511. Locking rod; 512. Locking hook; 51 3. First insertion hole; 514. Unlocking structure; 515. Unlocking block; 516. Unlocking magnet; 517. Active magnet; 518. Operating structure; 519. Drive rack; 520. Gear; 521. Linkage rack; 522. Operating groove; 523. Operating bar; 524. Operating hook; 525. Unlocking component; 526. Operating lever; 527. Slide bar; 528. Slider; 529. Operating hole; 530. Slide groove; 531. Slide hole; 532. Slot; 533. Connecting magnet; 534. Iron sheet. Detailed Implementation

[0039] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0040] This embodiment discloses a single-phase electricity metering box. (Refer to...) Figure 1 A single-phase electricity metering box includes a shell 100, which is injection molded from any one of PC+ABS, PC+ASA gold-containing plastic, or PP+LGF (long glass fiber reinforced polypropylene); in other embodiments, the shell 100 is molded from high-performance SMC composite material or machined and welded from stainless steel material.

[0041] Reference Figure 1The outer casing 100 includes a box body 200, an incoming line switch box door 300, an electric meter box door 400, and an electric meter switch box door 500.

[0042] Reference Figure 2 A receiving groove 201 is provided on one side of the housing 200. Two positioning strips 202 are fixedly connected to the bottom wall of the receiving groove 201, and the two positioning strips 202 are vertically arranged. A vertical partition 203 is provided inside the housing 200, and one side of the vertical partition 203 is inserted between the two positioning strips 202.

[0043] Reference Figure 2 A horizontal partition 204 is provided inside the housing 200. One side of the horizontal partition 204 is connected to the vertical partition 203, and the side of the horizontal partition 204 away from the vertical partition 203 is connected to the inner side wall of the receiving groove 201. A partition strip 205 is fixedly connected to the side of the horizontal partition 204 away from the bottom wall of the receiving groove 201.

[0044] Reference Figure 2 Vertical partition 203 and horizontal partition 204 divide the receiving groove 201 into a first chamber 206, a second chamber 207, and a third chamber 208. The first chamber 206 is located on the side of the vertical partition 203 away from the horizontal partition 204. The second chamber 207 is located on the side of the vertical partition 203 closer to the horizontal partition 204, and is located above the horizontal partition 204. The third chamber 208 is located on the side of the vertical partition 203 closer to the horizontal partition 204, and is located below the horizontal partition 204.

[0045] Reference Figure 2 A main power switch 209 and a data collector plug-in 210 are detachably connected to the inner wall of the first chamber 206 away from the opening of the receiving slot 201. The main power switch 209 is bolted to the inner wall of the first chamber 206 away from the opening of the receiving slot 201. The data collector plug-in 210 is bolted to the inner wall of the first chamber 206 away from the opening of the receiving slot 201. A data collector body 211 is inserted into the data collector plug-in 210, and the data collector body 211 is electrically connected to the main power switch 209.

[0046] Reference Figure 2 and Figure 3 The incoming switch box door 300 is rotatably connected to the box body 200, and the incoming switch box door 300 is used to open or close the first chamber 206. A fixing groove 301 and a first observation groove 302 are provided on the side of the incoming switch box door 300 away from the receiving groove 201.

[0047] Reference Figure 2 and Figure 3The bottom wall of the fixing groove 301 has a fixing hole 303. A fixing frame 304 is fixedly connected to the side of the incoming switch box door 300 facing the first chamber 206, and the fixing frame 304 is arranged around the fixing hole 303. The fixing hole 303 is aligned with the incoming main switch 209. Part of the incoming main switch 209 is inserted into the fixing frame 304.

[0048] Reference Figure 2 and Figure 3 An inlet switch protection door 305 is rotatably connected inside the fixing groove 301. The inlet switch protection door 305 is used to open or block the fixing hole 303.

[0049] Reference Figure 2 and Figure 3 The bottom wall of the first observation slot 302 has a first observation hole 306, which is aligned with the collector body 211. A baffle plate 307 is fixedly connected to the bottom wall of the first observation slot 302, which blocks the first observation hole 306. The baffle plate 307 is made of transparent material.

[0050] Reference Figure 3 Two protrusions 308 are fixedly connected to the bottom wall of the shield 307 away from the first observation slot 302. The two protrusions 308 are horizontally distributed. A collector viewing window protective door 309 is rotatably connected between the two protrusions 308.

[0051] Reference Figure 2 and Figure 3 Two plug-in assemblies 212 are detachably connected to the inner wall of the second chamber 207 away from the opening of the receiving slot 201. The two plug-in assemblies 212 are distributed vertically. Each plug-in assembly 212 includes two meter plugs 213, which are distributed horizontally. The meter plugs 213 are bolted to the inner wall of the second chamber 207 away from the opening of the receiving slot 201. A meter body 214 is plugged into each meter plug 213. In other embodiments, the plug-in assembly 212 may be one, three, or other quantities, and both the meter plugs 213 and the meter body 214 may be one, three, or other quantities.

[0052] Reference Figure 2 , Figure 3 and Figure 4 The meter box door 400 is rotatably connected to the box body 200, and is located directly above the partition bar 205. The meter box door 400 is used to open or close the second chamber 207. A receiving groove 401 is provided on the side of the meter box door 400 facing the second chamber 207. Two observation channels 402 are provided on the side of the meter box door 400 away from the receiving groove 201. The two observation channels 402 are distributed vertically and communicate with the receiving groove 401. The number of observation channels 402 is the same as the number of plug-in components 212.

[0053] Reference Figure 2 , Figure 3 and Figure 4 An observation frame 403 is fixedly connected to the bottom wall of the receiving groove 401, and the observation frame 403 surrounds the outer second observation hole 404. The second observation hole 404 is provided on the side of the observation frame 403 facing the second chamber 207. The number of observation frames 403 is the same as the number of plug-in assemblies 212. A limit frame 406 is fixedly connected to the inner wall of the second observation hole 404.

[0054] Reference Figure 2 , Figure 3 and Figure 4 A protective plate 405 is installed inside the second observation hole 404, and the protective plate 405 is located on the side of the limiting ring away from the second chamber 207. The protective plate 405 is made of transparent material. A snap-fit ​​structure 407 is provided between the protective plate 405 and the meter device. The snap-fit ​​block 409 structure includes a limiting frame 406, a snap-fit ​​strip 408, a snap-fit ​​block 409, and a limiting seat 411.

[0055] Reference Figure 2 , Figure 3 and Figure 4 The locking strip 408 is fixedly connected to the protective plate 405 in the direction of the second chamber 207. Four locking holes 410 are provided above the locking strip 408, and the four locking holes 410 are arranged in an array along the length of the protective plate 405. Four locking blocks 409 are provided, and each is fixedly connected to the upper inner wall of the second observation hole 404. Each of the four locking blocks 409 is inserted into one of the locking holes 410.

[0056] Reference Figure 2 and Figure 4 There are two limiting seats 411, both of which are fixedly connected to the protective plate 405 in the direction of the second chamber 207. The two limiting seats 411 are distributed along the length of the protective plate 405. A limiting groove 412 is provided below the limiting seat 411, and the limiting groove 412 can be inserted into the limiting frame 406.

[0057] Reference Figure 3 and Figure 4 Two connecting blocks 413 are fixedly connected to the side of the protective plate 405 away from the limiting frame 406. The two connecting blocks 413 are distributed in the horizontal direction. A meter viewing window protective door 414 is rotatably connected between the two connecting blocks 413.

[0058] Reference Figure 2 A cable outlet switch 215 is detachably connected to the inner wall of the third chamber 208 away from the opening of the receiving slot 201. A support structure 216 is provided between the cable outlet switch 215 and the housing 200 to connect the two. The support structure 216 includes a support base 217, a support bar 218, a locking bolt, and a locking nut.

[0059] Reference Figure 2 There are two support bases 217, located within the third chamber 208. Two support bars 218 are distributed horizontally. The housing 200 is connected to the support bases 217 via locking nuts.

[0060] Reference Figure 2 Both support bases 217 are connected to the support bar 218 on the side facing the opening of the receiving groove 201. The support bar 218 extends horizontally. Four outgoing switches 215 are mounted on the support bar 218, and the four outgoing switches 215 are distributed along the length of the support bar 218. The outgoing switches 215 are movable along the length of the support bar 218.

[0061] Reference Figure 2 , Figure 4 and Figure 5 The meter switch box door 500 is rotatably connected to the box body 200, and is located directly below the partition bar 205. The meter switch box door 500 is used to open or close the third chamber 208. A storage slot 501 is provided on the side of the meter switch box door 500 facing the third chamber 208. Four mounting holes 502 are provided on the side of the meter switch box door 500 away from the third chamber 208. These four mounting holes 502 are arranged in a horizontal array and all four mounting holes 502 communicate with the storage slot 501. When the meter switch box door 500 is closed, the mounting holes 502 are aligned with the outgoing switch 215.

[0062] Reference Figure 4 and Figure 5 The bottom wall of the storage tank 501 is provided with a sealing structure 503 for opening and closing the mounting hole 502. The sealing structure 503 includes a limiting horizontal plate 504, a limiting vertical plate 505, a mounting frame 506, and a sealing plate 507.

[0063] Reference Figure 4 and Figure 5 The limiting horizontal plate 504 is located between the mounting frame 506 and the bottom wall of the storage tank 501. The limiting horizontal plate 504, the mounting frame 506, and the meter switch box door 500 are connected by bolts. The limiting horizontal plate 504 is located below the mounting hole 502. Five limiting vertical plates 505 are provided, all of which are connected to the upper part of the limiting horizontal plate 504. The limiting vertical plates 505 are spaced apart from the mounting holes 502, so that the mounting holes 502 are located between two adjacent limiting vertical plates 505.

[0064] Reference Figure 2 and Figure 4 The mounting frame 506 has four through holes 508 on the side facing the limiting vertical plate 505, and the four through holes 508 are arranged in a horizontal array. Each of the four through holes 508 is aligned with a mounting hole 502.

[0065] Reference Figure 3 and Figure 5 Four sealing plates 507 are provided, and the limiting vertical plates 505 are spaced apart from the sealing plates 507. The sealing plates 507 are used to seal the mounting holes 502. The sealing plates 507 have grooves 509 on the side facing the mounting holes 502.

[0066] Reference Figure 2 and Figure 6 Four locking structures 510 are provided between the meter switch box door 500 and the meter box door 400, connecting the two. These four locking structures 510 are distributed along the length of the box body 200. Each locking structure 510 includes a locking rod 511 and a locking hook 512. The locking rod 511 is disposed on the bottom wall of the storage compartment 501 and can slide vertically. In this embodiment, the locking hook 512 is fixedly connected to the side of the locking rod 511 away from the vertical partition 203. The locking hook 512 is elastic.

[0067] Reference Figure 6 and Figure 7 The upper inner wall of the receiving groove 401 has a first insertion hole 513. A perforation 219 is provided on the side of the spacer 205 facing the meter switch box door 500, and the perforation 219 is aligned with the first insertion hole 513. A second insertion hole 415 is provided on the side of the meter box door 400 facing the spacer 205, and the second insertion hole 415 communicates with the receiving groove 401 and is aligned with the perforation 219. The first insertion hole 513, the perforation 219, and the second insertion hole 415 are all designed to allow the locking rod 511 and the locking hook 512 to pass through.

[0068] Reference Figure 6 and Figure 7 During the process of the locking rod 511 and the locking hook 512 rising together, the locking hook 512 first abuts against the edge of the first insertion hole 513. As the locking structure 510 rises further, the end of the locking hook 512 away from the locking rod 511 deforms towards the locking rod 511, thereby causing the locking hook 512 and the locking rod 511 to pass through the first insertion hole 513, the punch hole 219 and the second insertion hole 415 in sequence. After the hook part of the locking hook 512 moves into the receiving groove 401, the locking hook 512 resets so that when the hook part of the locking hook 512 contacts the lower inner wall of the receiving groove 401, the locking hook 512 hooks and engages with the meter box door 400.

[0069] Reference Figure 6 and Figure 8 The meter box door 400 is equipped with an unlocking structure 514, which is used to unlock the locking hook 512 from the meter box door 400. The unlocking structure 514 includes an unlocking block 515, an unlocking magnet 516, and an active magnet 517.

[0070] Reference Figure 1 , Figure 6 and Figure 8 The unlocking block 515 is slidably disposed on the lower inner wall of the receiving groove 401, and the unlocking block 515 can move along the length direction of the box 200. The end face of the unlocking block 515 facing the bottom wall of the receiving groove 401 is fixedly connected to the unlocking magnet 516.

[0071] Reference Figure 1 , Figure 6 and Figure 8 The active magnet 517 is slidably positioned on the side of the meter box door 400 away from the box body 200, and moves along the length of the box body 200. The active magnet 517 and the unlocking magnet 516 are magnetically attracted to each other. When the operator drives the active magnet 517 to move horizontally, the active magnet 517 can drive the unlocking magnet 516 and the unlocking block 515 to move together.

[0072] Reference Figure 6 and Figure 7 Each sealing plate 507 is equipped with an operating structure 518, and each operating structure 518 can drive a locking structure 510 to rise or fall. The operating structure 518 includes a drive rack 519, a gear 520, and a linkage rack 521.

[0073] Reference Figure 6 and Figure 7 The drive rack 519 is fixedly connected to the upper end face of the sealing plate 507, and is located on the side of the locking rod 511 away from the locking hook 512. The gear 520 is rotatably connected to the bottom wall of the storage tank 501, and is located between the drive rack 519 and the locking rod 511. The linkage rack 521 is located between the gear 520 and the locking rod 511, and is fixedly connected to the locking rod 511 on the side of the linkage rack 521 away from the gear 520. Both the linkage rack 521 and the drive gear 520 mesh with each other.

[0074] Reference Figure 6 and Figure 7 The upper surface of the sealing plate 507 has an operating groove 522, and an operating bar 523 is fixedly connected within the operating groove 522. An operating hook 524, which is elastic, is fixedly connected to the lower surface of the locking rod 511. The operating hook 524 and the locking rod 511 can be inserted into the operating groove 522. The operating hook 524 can engage with the operating bar 523.

[0075] Reference Figure 7 and Figure 8 The sealing plate 507 is provided with an unlocking component 525, which is used to release the lock between the operating hook 524 and the operating bar 523. The unlocking component 525 includes an operating lever 526, a sliding bar 527, and a slider 528.

[0076] Reference Figure 7and Figure 8 An operating hole 529 is provided on the side of the sealing plate 507 along the length of the meter switch box door 500, and the operating hole 529 communicates with the operating groove 522. The operating hole 529 is located on the side of the operating bar 523 near the bottom wall of the operating groove 522, and on the side of the operating bar 523 away from the operating rod 526. The upper inner wall of the operating hole 529 is coplanar with the lower end face of the operating bar 523. A sliding groove 530 is provided on the lower inner wall of the operating groove 522, and the sliding groove 530 is a vertical elongated groove. A sliding hole 531 is provided on the end face of the sealing plate 507 facing the mounting hole 502, and the sliding hole 531 is a horizontal elongated hole, and the sliding hole 531 communicates with the sliding groove 530.

[0077] Reference Figure 7 and Figure 8 An operating lever 526 passes through an operating groove 522. One end of the operating lever 526 is inserted into the operating groove 522, and the other end extends out of the sealing plate 507. A sliding rod 527 is slidably disposed within a sliding groove 530, and its upper end face is fixedly connected to the operating lever 526. A sliding block 528 is slidably disposed within a sliding hole 531, with one end of the sliding block 528 fixedly connected to the sliding rod 527, and the other end of the sliding block 528 being coplanar with the end face of the sealing plate 507 facing the mounting hole 502.

[0078] Reference Figure 7 A slot 532 is provided on the side of the sealing plate 507 away from the operating hole 529, and the slot 532 is at the same height as the operating hole 529. A connecting magnet 533 is fixedly connected to the bottom wall of the slot 532. An iron piece 534 is fixedly connected to the end of the operating rod 526 away from the operating slot 522. Both the iron piece 534 and the operating rod 526 can be inserted into the slot 532 on the adjacent sealing plate 507.

[0079] The implementation principle of a single-phase electricity metering box in this application embodiment is as follows: First, the active magnet 517 is driven to move horizontally. The active magnet 517 drives the unlocking magnet 516 and the unlocking block 515 to move through magnetic force, so that the unlocking block 515 releases the operating hook 524 from the meter box door 400. Then, the sealing plate 507 is driven to rise. The sealing plate 507 drives the drive rack 519 to rise. The drive rack 519 drives the gear 520 to rotate. The gear 520 then drives the linkage rack 521, the locking rod 511 and the operating hook 524 to fall, so that the locking rod 511 is no longer inserted into the meter box door 400. Finally, the locking rod 511 and the operating hook 524 are inserted into the operating groove 522 on the sealing plate 507. The operating hook 524 and the operating bar 523 hook and cooperate to lock the sealing plate 507, preventing the sealing plate 507 from falling, so that the mounting hole 502 can be opened and the operator can operate the outgoing switch 215.

[0080] Conversely, the slider 528 is moved horizontally to release the lock between the operating hook 524 and the operating bar 523, and then the sealing plate 507 is driven to descend. The sealing plate 507 drives the drive rack 519 to descend, and the drive rack 519 drives the gear 520 to rotate. The gear 520 then drives the linkage rack 521, the locking rod 511 and the operating hook 524 to rise. The locking rod 511 and the operating hook 524 pass through the first insertion hole 513, the punch hole 219 and the second insertion hole 415 in sequence, and finally make the operating hook 524 hook and engage with the meter box door 400, further locking the meter box door 400. Even if the electricity thief unlocks the lock on the meter box door 400, he will still not be able to open the meter box door 400, thus preventing the electricity thief from stealing electricity.

[0081] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of this application should be included within the protection scope of this application.

Claims

1. A single phase electricity metering box comprising a housing (100) characterised in that: The shell (100) includes a box (200) and a meter switch box door (500) rotatably connected with the box (200), a third chamber (208) is formed on one side of the box (200) facing the meter switch box door (500), an outgoing line switch (215) is arranged in the third chamber (208), a mounting hole (502) aligned with the outgoing line switch (215) is formed on one side of the meter switch box door (500) facing the box (200), a storage groove (501) is formed on one side of the meter switch box door (500) facing the third chamber (208), and a plugging structure (503) for opening and closing the mounting hole (502) is arranged in the storage groove (501); the plugging structure (503) includes two limiting vertical plates (505) arranged on the bottom wall of the storage groove (501) and a limiting horizontal plate (504) located below the mounting hole (502), the mounting hole (502) is located between the two limiting vertical plates (505), the lower sides of the two limiting vertical plates (505) are connected with the limiting horizontal plate (504), and the side of the limiting vertical plate (505) away from the bottom wall of the storage groove (501) is provided with a mounting frame (506), the mounting frame (506) is provided with a through hole (508) aligned with the outgoing line switch (215), and the mounting frame (506) and the bottom wall of the storage groove (501) are slidably provided with a plugging plate (507) for plugging the mounting hole (502), and the plugging plate (507) is located between the two limiting vertical plates (505).

2. A single phase electricity metering box as claimed in claim 1, wherein: The side of the plugging plate (507) facing the bottom wall of the storage groove (501) is provided with a groove (509).

3. A single phase energy metering box as claimed in claim 1, wherein: The box (200) is rotatably connected with a meter box door (400) located above the meter switch box door (500), a second chamber (207) is formed on one side of the box (200) facing the meter box door (400), a meter plug-in (213) is arranged in the second chamber (207), a meter body (214) is inserted into the meter plug-in (213), an accommodation groove (401) is formed on one side of the meter box door (400) facing the second chamber (207), an observation passage (402) aligned with the meter body (214) is formed in the bottom wall of the accommodation groove (401), an observation frame (403) is arranged on the bottom wall of the accommodation groove (401), a second observation hole (404) in communication with the observation passage (402) is formed on one side of the observation frame (403) facing the second chamber (207), and a protective plate (405) made of transparent material is arranged in the second observation hole (404).

4. A single phase electricity metering box as claimed in claim 3, wherein: The electric meter switch box door (500) and the electric meter box door (400) are provided with a locking structure (510) connecting the two, the box body (200) is provided with a partition strip (205) between the electric meter box door (400) and the electric meter switch box door (500), the locking structure (510) comprises a locking rod (511) vertically slidingly arranged on the bottom wall of the storage groove (501), the locking rod (511) is provided with an elastic locking hook (512) on one side along the length direction of the box body (200), the lower inner wall of the accommodating groove (401) is provided with a second insertion hole (415) for the locking rod (511) and the locking hook (512) to pass through, the upper inner wall of the storage groove (501) is provided with a first insertion hole (513) in communication with the second insertion hole (415), the partition strip (205) is provided with a punch hole (219) for the second insertion hole (415) to communicate, the locking hook (512) can be hooked with the electric meter box door (400), the blocking plate (507) is provided with an operating structure (518) for driving the locking rod (511) to lift, and the electric meter box door (400) is provided with an unlocking structure (514) for driving the locking hook (512) to be unlocked with the electric meter box door (400).

5. A single phase electricity metering box as claimed in claim 4, wherein: The operating structure (518) comprises a gear (520) rotatably connected to the bottom wall of the storage groove (501), a linkage rack (521) provided on the side of the locking rod (511) away from the locking hook (512), and a driving rack (519) provided above the blocking plate (507), the gear (520) is located on the side of the linkage rack (521) away from the locking rod (511), the linkage rack (521) and the gear (520) are meshed with each other, and the driving rack (519) is located on the side of the gear (520) away from the linkage rack (521), and the driving rack (519) and the gear (520) are meshed with each other.

6. A single phase electricity metering box as claimed in claim 5, wherein: The unlocking structure (514) comprises an unlocking block (515) located on the side of the locking hook (512) away from the locking rod (511) and a driving magnet (517) horizontally slidingly arranged on the side of the electric meter box door (400) away from the box body (200), the unlocking block (515) is slidingly arranged on the lower inner wall of the storage groove (501), and the unlocking block (515) is provided with an unlocking magnet (516) on the side facing the bottom wall of the accommodating groove (401), and the unlocking magnet (516) and the driving magnet (517) are magnetically attracted and matched.

7. A single phase electricity metering box as claimed in claim 4, wherein: The lower side of the locking rod (511) is provided with an elastic operating hook (524), the upper end surface of the blocking plate (507) is provided with an operating groove (522) for the locking rod (511) and the operating hook (524) to be inserted, the operating groove (522) is provided with an operating strip (523), and the operating hook (524) can be hooked with the operating strip (523).

8. A single phase electricity metering box as claimed in claim 7, characterized in that: The locking plate (507) is provided with an unlocking assembly (525), the locking plate (507) is provided with an operation hole (529) communicating with an operation slot (522) on the side in the length direction of the box body (200), the operation hole (529) is located on the side of the operation strip (523) away from the operation hook (524), the upper inner wall of the operation hole (529) is coplanar with the lower surface of the operation strip (523), the lower inner wall of the operation hole (529) is provided with a sliding groove (530), the side of the locking plate (507) away from the third chamber (208) is provided with a sliding hole (531) communicating with the sliding groove (530), the unlocking assembly (525) comprises an operation rod (526) penetrating into the operation hole (529), a sliding rod (527) slidingly arranged in the sliding groove (530) and a sliding block (528) slidingly arranged in the sliding hole (531), the sliding rod (527) is connected below the operation rod (526), and one side of the sliding rod (527) is connected with the sliding block (528).

9. A single phase electricity metering box as claimed in claim 8, characterized in that: The mounting hole (502) and the locking plate (507) are provided with a plurality of mounting holes (502) and locking plates (507), the mounting hole (502) and the locking plate (507) are distributed in the horizontal direction, the side of the locking plate (507) away from the operation hole (529) is provided with a clamping groove (532) for inserting the operation rod (526), and the side of the operation rod (526) away from the operation slot (522) is provided with an iron sheet (534); and the bottom wall of the clamping groove (532) is provided with a coupling magnet (533).

10. A single phase electricity metering box as claimed in claim 1, wherein: The inner wall of the third chamber (208) away from the electric meter switch box door (500) is provided with a support structure (216) for connecting the outgoing line switch (215), the support structure (216) comprises a support seat (217) and a support strip (218) arranged on the side of the support seat (217) facing the electric meter switch box door (500), the support seat (217) is arranged on the inner wall of the third chamber (208) away from the electric meter switch box door (500), and the outgoing line switch (215) is assembled on the support strip (218) and can move along the length direction of the support strip (218).

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