A wall-mounted electric energy metering box

Abstract

The application relates to the technical field of electric energy metering boxes, and discloses a wall-mounted electric energy metering box which comprises a pre-buried fixing base which is fixedly arranged in an embedded groove pre-formed in a wall body and constitutes a standard installation base on the side of the wall body, and the pre-buried fixing base comprises a pre-buried fixing plate which is provided with pre-buried bolt holes at four corners; an embedded box body which is detachably arranged in the embedded groove pre-formed in the wall body and is detachably connected to the pre-buried fixing plate through an adjustable butt joint mechanism and constitutes a standardized functional module independent of the pre-buried fixing base; the wall-mounted electric energy metering box is designed in a separation type structure of the pre-buried fixing base and the embedded box body, the embedded box body constitutes a standardized functional module independent of the pre-buried fixing base, the pre-buried fixing base is fixed once during the wall construction stage and remains stationary for a long time, and the embedded box body is a detachable functional module which can be replaced or upgraded at any time without damaging the pre-buried structure of the wall body.

Description

Technical Field

[0001] This invention relates to the field of electricity metering box technology, specifically a wall-mounted electricity metering box. Background Technology

[0002] Wall-mounted electricity metering boxes are electricity metering devices fixedly installed on the exterior or interior walls of buildings, widely used in residential buildings, commercial buildings, and industrial plants for electricity metering and distribution management. The basic installation method involves pre-cutting an embedding groove in the wall, embedding the box, and then fixing it to the wall using expansion bolts or pre-embedded parts. This reduces the space occupied by the box and improves installation stability. Existing wall-mounted electricity metering boxes generally adopt an integrated structural design, meaning the box and pre-embedded fasteners are fixed together during installation, and internal components such as the meter, terminals, and switches are directly installed inside the box.

[0003] However, this traditional integrated structure has significant drawbacks in practical applications. First, during long-term operation, internal components such as meters, terminals, and relays in the electricity metering box may malfunction due to aging, overload, or environmental factors, requiring repair or replacement. Because the box is rigidly fixed to the wall's embedded parts, maintenance personnel must disassemble the box within its confined space when internal components are damaged or require periodic inspection. This extremely limited operating space not only makes repairs difficult and time-consuming but also increases the risk of damaging other intact components due to improper handling. Second, with the advancement of smart grid transformation, when traditional meters need to be upgraded to smart meters or have communication modules added, the fixed installation structure and limited wiring space within the box often necessitate the complete disassembly of the box, sometimes even damaging the wall's embedded structure. This results in long renovation cycles, high costs, and disruption to users' normal electricity use. Furthermore, when the box itself ages, corrodes, or suffers mechanical damage due to prolonged exposure to sun and rain, replacing the entire box means re-grooving, embedding, and fixing it in the wall. This cumbersome and complex construction process severely damages the wall's aesthetics. The aforementioned defects result in high maintenance costs for existing wall-mounted power metering boxes throughout their entire life cycle, hindering the operation and maintenance efficiency and intelligent upgrading of power grid equipment. Summary of the Invention

[0004] The purpose of this invention is to provide a wall-mounted electricity metering box to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a wall-mounted electricity metering box, comprising:

[0006] An embedded fixing base is fixedly installed in a pre-cut groove in the wall to form a standard installation base on the side of the wall, including an embedded fixing plate, wherein the embedded fixing plate is provided with embedded bolt holes at the four corners;

[0007] The embedded housing is detachably and replaceably installed in a pre-cut groove in the wall and can be detachably connected to the pre-embedded fixing plate through an adjustable docking mechanism, forming a standardized functional module independent of the pre-embedded fixing seat.

[0008] An automatic centering mechanism is located at the top center of the pre-embedded fixing plate and is used to guide the embedded box to automatically correct itself relative to the pre-embedded fixing seat to the predetermined installation position during the embedding process of the embedded box.

[0009] An adjustable docking mechanism is provided on the pre-embedded fixing plate and is used to lock the embedded box to the pre-embedded fixing base after the automatic centering mechanism has completed centering;

[0010] A joint sealing mechanism is provided at the junction of the pre-embedded fixing seat and the embedded box, and is used to seal the joint between the two after the adjustable docking mechanism is locked.

[0011] The sensing and monitoring mechanism consists of a temperature sensor, a humidity sensor, and a smoke sensor integrated and installed inside the embedded enclosure, used to monitor the internal operating environment of the embedded enclosure in real time.

[0012] The controller is fixedly installed on the inner side wall of the embedded housing and is electrically connected to the servo motor and sensor on the pre-embedded mounting base via an electrical connection terminal group. It is used to control the adjustable docking mechanism to perform a locking action after the embedded housing is embedded in place.

[0013] An exposed panel is hinged to the outside of the embedded housing. The exposed panel is equipped with control buttons and a display screen that are electrically connected to the controller.

[0014] According to the above technical solution, the automatic alignment mechanism includes:

[0015] The top docking plate is located at the center of the top of the pre-embedded fixing plate. It is composed of horizontal docking plates arranged in a horizontal mirror symmetry. The horizontal docking plates are provided with positioning holes. The embedded box is fixedly installed with positioning columns that correspond one-to-one with the positioning holes.

[0016] The lifting and moving plate is movably installed in the lifting and moving slot opened in the pre-embedded fixed plate, and one end of the top docking plate is fixedly connected to the side wall of the lifting and moving plate.

[0017] A drive motor is fixedly installed on the top of the lifting and moving slot, and a threaded rod is fixedly installed on the output end. The threaded rod is threadedly connected to the lifting and moving plate.

[0018] The guide auxiliary rod is fixedly installed in the lifting and moving slot and slides through the lifting and moving plate, and is arranged in a linear array along the length direction of the lifting and moving plate.

[0019] According to the above technical solution, the electrical connection terminal group includes:

[0020] Spring pins are evenly distributed around the periphery of the positioning post;

[0021] Electrical contact points are evenly distributed around the positioning hole and are set one-to-one with the spring pins.

[0022] According to the above technical solution, the automatic alignment mechanism further includes:

[0023] An RFID reader is embedded in the top of the embedded housing;

[0024] An RFID identification chip is embedded in the top of the top docking plate and is configured correspondingly to the RFID reader.

[0025] According to the above technical solution, the adjustable docking mechanism includes:

[0026] The docking plate assembly is respectively set in the upper middle and lower middle parts of the side wall of the pre-embedded fixing seat. It consists of a pair of side wing docking plates that are horizontally mirror-symmetrically arranged on the side wall of the pre-embedded fixing seat. The embedded box has a side wing docking groove that corresponds to the side wing docking plate one by one. The side wing docking groove is opened through the outer wall of the embedded box.

[0027] A spacing adjustment component is disposed between the side wing docking plates to adjust the spacing between the side wing docking plates.

[0028] According to the above technical solution, the spacing adjustment component includes:

[0029] The sliding sealing block is fixedly connected to the side wing docking plate one by one. The sliding seal is installed in the sliding sealing groove opened in the side wall of the pre-embedded fixing seat, and its length is greater than the width of the side wing docking plate.

[0030] The first threaded connecting rod is movably installed in the sliding sealing groove and threadedly connected to the sliding sealing block;

[0031] The first servo motor is fixedly installed between the side wing docking plates of the same docking plate group, and its output end extends into the first central transmission groove, and a first transmission gear is fixedly installed thereon.

[0032] One end of the first threaded connecting rod extends into the first central transmission groove and is fixedly mounted with a second transmission gear that meshes with the first transmission gear.

[0033] According to the above technical solution, a pressing mechanism is provided between the side wing docking plate and the pre-embedded fixing seat, the pressing mechanism comprising:

[0034] The second servo motor is fixedly installed on the outer wall of the side wing docking plate, and its output end extends into the second central transmission groove of the side wing docking plate, and a third transmission gear is fixedly installed thereon.

[0035] The movable block is horizontally mirror-symmetrically arranged on both sides of the second central transmission groove, and a pressing contact block is fixedly installed at the far end. The pressing contact block penetrates the outer wall of the side wing docking plate and slides in contact with the pressing grooves of the side wing docking groove side wall.

[0036] The second threaded connecting rod is movably installed on both sides of the second central transmission groove. One end of the rod is fixedly installed with a fourth transmission gear that meshes with the third transmission gear, and the other end is threadedly connected to the corresponding moving block.

[0037] According to the above technical solution, the extrusion mechanism further includes:

[0038] A position feedback sensor is embedded in the end of the extrusion contact block and electrically connected to the controller;

[0039] The end face of the extrusion contact block is provided with a mounting countersunk hole, and the position feedback sensor is embedded in the mounting countersunk hole, with its detection end extending out of the end face of the extrusion contact block;

[0040] The positioning feedback sensor is used to generate a positioning trigger signal when the extrusion contact block extends into the extrusion groove and the detection end abuts against the bottom wall of the extrusion groove, and transmits the positioning trigger signal to the controller;

[0041] The controller, based on the received arrival trigger signal, controls the second servo motor to stop operating and locks the current locking state.

[0042] According to the above technical solution, the joint sealing mechanism includes:

[0043] The airbag ring is embedded in one side of the embedded housing and located inside the side wing docking groove;

[0044] The pump is embedded in the side wall of the embedded housing and connected to the airbag ring through the main pipe.

[0045] According to the above technical solution, the joint sealing mechanism further includes:

[0046] A three-way connector is installed on the main pipe between the pump and the airbag ring;

[0047] The branch pipe has one end connected to the main pipe via the tee connector, and the other end connected to the inlet of the micro accumulator;

[0048] A one-way valve is installed on the main pipeline between the pump and the tee joint, and its conduction direction is unidirectional from the pump to the tee joint.

[0049] A micro accumulator, the inlet of which is connected to the other end of the branch pipe, and the tail end of which is a closed end;

[0050] A pressure sensor is installed on the main pipe between the tee joint and the airbag ring, and is electrically connected to the controller.

[0051] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0052] (1) Modular and replaceable design significantly reduces operation and maintenance costs.

[0053] This device employs a separate structural design between the pre-embedded mounting base and the embedded enclosure, allowing the embedded enclosure to function as a standardized functional module independent of the pre-embedded mounting base. The pre-embedded mounting base is fixed in place during the wall construction phase and remains stationary, while the embedded enclosure, as a detachable and replaceable functional module, can be quickly replaced or upgraded at any time without damaging the wall's pre-embedded structure. Maintenance personnel simply need to remove the existing embedded enclosure and replace it with the new standardized one, without disassembling the pre-embedded mounting base, re-drilling and anchoring, or requiring secondary wall construction. This significantly reduces maintenance costs and replacement difficulty, and shortens equipment downtime.

[0054] (2) Fully automatic docking and guided alignment enable convenient installation.

[0055] This device, through a unified controller coordinating the automatic alignment mechanism, adjustable docking mechanism, and joint sealing mechanism, achieves fully automated control of the embedded enclosure from insertion guidance, alignment correction, locking and fixing to joint sealing. The positioning pins and holes of the automatic alignment mechanism guide the enclosure in the horizontal direction during insertion via conical guides, automatically correcting any horizontal offset. The lifting and moving plate further adjusts the vertical position, ensuring the enclosure precisely reaches the predetermined installation position. Operators only need to push the embedded enclosure into the insertion slot; all subsequent alignment, locking, and sealing actions are automatically completed sequentially by the controller, eliminating the need for on-site debugging by professional technicians and achieving standardized, convenient, and rapid installation.

[0056] (3) Multi-factor authentication effectively prevents counterfeiting and electricity theft.

[0057] This device integrates an RFID reader and RFID chip into its automatic alignment mechanism. Simultaneously, it automatically performs RFID communication as the embedded enclosure and pre-embedded mounting base complete their physical docking. The controller reads the identity information stored in the RFID chip to rigorously verify the legitimacy of the pre-embedded mounting base. Only authorized enclosures that pass authentication can proceed with the subsequent locking and sealing process; if authentication fails, an alarm signal is immediately issued, and all subsequent actions are terminated. This design fundamentally prevents unauthorized enclosures, counterfeit enclosures, or unverified illegal metering modules from connecting to the power grid, effectively preventing electricity theft and illegal meter replacement.

[0058] (4) Double locking and positioning feedback ensure safe and reliable docking.

[0059] This device employs a dual locking mechanism combining side wing mating plate spacing adjustment and extrusion locking by an extrusion mechanism, achieving a rigid and reliable connection between the embedded housing and the pre-embedded fixing seat. The spacing adjustment component precisely adjusts the spacing between the two side wing mating plates to ensure accurate matching with the side wing mating grooves. The extrusion mechanism drives the extrusion contact block to extend into the extrusion groove, using a wedge fit to pull and lock the embedded housing towards the pre-embedded fixing seat. Crucially, a position feedback sensor embedded at the end of the extrusion contact block generates a position trigger signal when its detection end abuts against the bottom wall of the extrusion groove, transmitting the signal to the controller. The controller confirms the locking is in place before stopping the second servo motor and locking the current state, completely avoiding serious safety hazards such as housing loosening, poor contact, or detachment during operation due to insufficient locking.

[0060] (5) Active airbag sealing provides superior sealing performance compared to traditional solutions.

[0061] This device employs an active sealing method using an inflatable airbag ring, offering significant advantages over the passive sealing methods of traditional gaskets or sealants. After inflation, the airbag ring adaptively fills the gap between the pre-embedded mounting base and the embedded housing. Even with processing errors in the joint width or uneven deformation due to wall settlement, the airbag ring's flexible expansion characteristics ensure a tight fit, forming a uniform, continuous, and seamless sealing barrier. Traditional gaskets rely on pre-compression during installation for sealing, which is prone to failure after long-term use due to material creep, relaxation, aging, and hardening. Sealants, on the other hand, suffer from inherent problems such as curing shrinkage, aging cracking, and difficulty in replacement. In contrast, the airbag ring seal of this device can actively inflate and pressurize when needed. After the pump stops, the pressure is maintained by a micro-accumulator. If the sealing performance deteriorates, it can be restored by pressurization, achieving long-term stable and reliable sealing protection. This significantly improves the adaptability and protection level of the power metering box in harsh outdoor environments such as humidity and dust.

[0062] (6) Long-lasting pressure-holding seal, resolving the contradiction between sealing and maintenance.

[0063] This device employs an air-filled ring for sealing the joints. A pressure-maintaining system, consisting of a check valve, a micro accumulator, and a pressure sensor, is innovatively installed on the main pipeline between the pump and the air-filled ring. Upon pump startup, high-pressure gas simultaneously inflates both the air-filled ring and the micro accumulator, which stores the gas pressure energy as elastic potential energy. After pump shutdown, the check valve automatically closes to prevent backflow, the micro accumulator continuously releases energy to maintain stable pressure in the air-filled ring, and the pressure sensor monitors the pipeline pressure in real time, automatically triggering pressure replenishment by the controller when the pressure falls below a threshold. This design completely solves the drawbacks of traditional pneumatic sealing systems that rely on continuous power supply and frequent pump start-stop cycles. Even in the event of a power outage, the micro accumulator maintains an effective seal, extending pump lifespan and reducing operating noise. Attached Figure Description

[0064] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0065] Figure 1 This is a first perspective view of the present invention;

[0066] Figure 2 This is a second perspective view of the present invention;

[0067] Figure 3 This is a third perspective view of the present invention;

[0068] Figure 4 This is a first partial three-dimensional schematic diagram of the present invention;

[0069] Figure 5 This is a second partial perspective view of the present invention;

[0070] Figure 6 This is a third partial perspective view of the present invention;

[0071] Figure 7 This is a fourth partial perspective view of the present invention;

[0072] Figure 8 This is a fifth partial perspective view of the present invention;

[0073] Figure 9 This is a sixth partial perspective view of the present invention;

[0074] In the diagram: 1-Embedded fixing seat, 11-Embedded fixing plate, 111-Embedded bolt hole, 2-Embedded housing, 3-Automatic centering mechanism, 31-Top docking plate, 311-Horizontal docking plate, 312-Positioning hole, 313-Positioning column, 32-Lifting moving plate, 321-Lifting moving groove, 33-Drive motor, 331-Threaded rod, 34-Guide auxiliary rod, 35-RFID reader, 36-RFID identification chip, 4-Adjustable docking mechanism, 41-Docking plate assembly, 411-Side wing docking plate, 412-Side wing docking groove, 42-Gap adjustment component, 421-Sliding sealing block, 422-Sliding sealing groove, 423-First threaded connecting rod, 424-First servo motor, 425-First central transmission groove, 426-First transmission gear, 427-Second transmission gear. 43-Extrusion mechanism, 431-Second servo motor, 432-Second central transmission groove, 433-Third transmission gear, 434-Moving block, 435-Extrusion contact block, 436-Extrusion groove, 437-Second threaded connecting rod, 438-Fourth transmission gear, 439-Position feedback sensor, 4391-Mounting countersunk hole, 5-Seam sealing mechanism, 51-Airbag ring, 52-Pump, 53-Main pipeline, 54-One-way valve, 55-T-connector, 56-Branch pipeline, 57-Micro accumulator, 58-Pressure sensor, 6-Sensing and monitoring mechanism, 61-Temperature sensor, 62-Humidity sensor, 63-Smoke sensor, 7-Controller, 71-Electrical connection terminal group, 711-Spring pin, 712-Electrical connection contact point, 8-Exposed panel, 81-Control button, 82-Display screen. Detailed Implementation

[0075] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0076] Please see Figure 1-9 The present invention provides a technical solution: a wall-mounted electricity metering box, comprising:

[0077] The pre-embedded fixing base 1 is fixedly installed in the embedded groove pre-opened in the wall to form a standard installation base on the side of the wall, including a pre-embedded fixing plate 11, wherein the pre-embedded fixing plate 11 is provided with pre-embedded bolt holes 111 at the four corners.

[0078] The embedded housing 2 is detachably and replaceably embedded in a pre-cut groove in the wall and can be detachably connected to the pre-embedded fixing plate 11 via an adjustable docking mechanism 4, forming a standardized functional module independent of the pre-embedded fixing seat 1.

[0079] An automatic centering mechanism 3 is located at the top center of the pre-embedded fixing plate 11 and is used to guide the embedded box 2 to automatically correct itself relative to the pre-embedded fixing seat 1 to the predetermined installation position during the embedding process of the embedded box 2.

[0080] An adjustable docking mechanism 4 is set on the pre-embedded fixing plate 11 and is used to lock the embedded box 2 to the pre-embedded fixing base 1 after the automatic centering mechanism 3 completes the centering.

[0081] The joint sealing mechanism 5 is located at the junction of the pre-embedded fixing seat 1 and the embedded box 2, and is used to seal the joint between the two after the adjustable docking mechanism 4 is locked.

[0082] The sensing and monitoring mechanism 6 consists of a temperature sensor 61, a humidity sensor 62, and a smoke sensor 63 integrated and installed inside the embedded housing 2, and is used to monitor the internal operating environment of the embedded housing 2 in real time.

[0083] The controller 7 is fixedly installed on the inner side wall of the embedded housing 2 and is electrically connected to the servo motor and sensor on the pre-embedded fixing seat 1 via the electrical connection terminal group 71. It is used to control the adjustable docking mechanism 4 to perform a locking action after the embedded housing 2 is embedded in place.

[0084] An exposed panel 8 is hinged to the outside of the embedded housing 2. The exposed panel 8 is provided with control buttons 81 and a display screen 82 that are electrically connected to the controller 7.

[0085] Specifically, the automatic alignment mechanism 3 includes:

[0086] The top docking plate 31 is located at the center of the top of the pre-embedded fixing plate 11. It is composed of horizontal docking plates 311 arranged in a horizontal mirror symmetry. The horizontal docking plate 311 has a through positioning hole 312. The embedded box 2 is fixedly installed with positioning posts 313 that correspond one-to-one with the positioning hole 312.

[0087] The lifting and moving plate 32 is movably installed in the lifting and moving groove 321 opened in the pre-embedded fixed plate 11, and one end of the top docking plate 31 is fixedly connected to the side wall of the lifting and moving plate 32.

[0088] The drive motor 33 is fixedly installed on the top of the lifting moving slot 321, and a threaded rod 331 is fixedly installed on the output end. The threaded rod 331 is threadedly connected to the lifting moving plate 32.

[0089] The guide auxiliary rod 34 is fixedly installed in the lifting moving groove 321 and slides through the lifting moving plate 32, and is arranged in a linear array along the length direction of the lifting moving plate 32;

[0090] Specifically, the electrical connection terminal group 71 includes:

[0091] Spring pins 711 are evenly distributed around the periphery of the positioning post 313;

[0092] Electrical contact points 712 are evenly distributed around the positioning hole 312 and are arranged one-to-one with the spring pin 711;

[0093] Specifically, the automatic alignment mechanism 3 also includes:

[0094] RFID reader 35 is embedded in the top of the embedded housing 2;

[0095] An RFID identification chip 36 is embedded in the top of the top docking plate 31 and is correspondingly set with the RFID reader 35.

[0096] Specifically, the adjustable docking mechanism 4 includes:

[0097] The docking plate assembly 41 is respectively disposed in the upper middle part and the lower middle part of the side wall of the pre-embedded fixing seat 1. It consists of a pair of side wing docking plates 411 arranged horizontally in mirror symmetry on the side wall of the pre-embedded fixing seat 1. The embedded box 2 has a side wing docking groove 412 that corresponds to the side wing docking plate 411 on one side. The side wing docking groove 412 is opened through the outer wall of the embedded box 2.

[0098] A spacing adjustment component 42 is disposed between the side wing docking plates 411 to adjust the spacing between the side wing docking plates 411;

[0099] Specifically, the spacing adjustment component 42 includes:

[0100] The sliding sealing block 421 is fixedly connected to the side wing docking plate 411 in a one-to-one correspondence. The sliding seal is installed in the sliding sealing groove 422 opened in the side wall of the pre-embedded fixing seat 1, and its length is greater than the width of the side wing docking plate 411.

[0101] The first threaded connecting rod 423 is movably installed in the sliding sealing groove 422 and threadedly connected to the sliding sealing block 421;

[0102] The first servo motor 424 is fixedly installed between the side wing docking plates 411 of the same docking plate group 41, and its output end extends into the first central transmission groove 425, and a first transmission gear 426 is fixedly installed thereon.

[0103] One end of the first threaded connecting rod 423 extends into the first central transmission groove 425, and a second transmission gear 427 that meshes with the first transmission gear 426 is fixedly installed thereon.

[0104] Specifically, a pressing mechanism 43 is provided between the side wing docking plate 411 and the pre-embedded fixing seat 1, and the pressing mechanism 43 includes:

[0105] The second servo motor 431 is fixedly installed on the outer wall of the side wing docking plate 411, and its output end extends into the second central transmission groove 432 of the side wing docking plate 411. A third transmission gear 433 is also fixedly installed thereon.

[0106] The movable block 434 is horizontally mirror-symmetrically arranged on both sides of the second central transmission groove 432, and a pressing contact block 435 is fixedly installed at the far end. The pressing contact block 435 penetrates the outer wall of the side wing docking plate 411 and slides in contact with the pressing groove 436 on the side wall of the side wing docking groove 412.

[0107] The second threaded connecting rod 437 is movably installed on both sides of the second central transmission groove 432. The opposite end is fixedly installed with a fourth transmission gear 438 that meshes with the third transmission gear 433, and the far end is threadedly connected to the corresponding moving block 434.

[0108] Specifically, the extrusion mechanism 43 further includes:

[0109] A position feedback sensor 439 is embedded in the end of the extrusion contact block 435 and is electrically connected to the controller 7;

[0110] The end face of the extrusion contact block 435 is provided with a mounting countersunk hole 4391, and the position feedback sensor 439 is embedded in the mounting countersunk hole 4391, with its detection end extending out of the end face of the extrusion contact block 435.

[0111] The positioning feedback sensor 439 is used to generate a positioning trigger signal when the extrusion contact block 435 extends into the extrusion groove 436 and the detection end abuts against the bottom wall of the extrusion groove 436, and transmits the positioning trigger signal to the controller 7.

[0112] The controller 7 controls the second servo motor 431 to stop operating and locks the current locking state according to the received arrival trigger signal;

[0113] Specifically, the joint sealing mechanism 5 includes:

[0114] The airbag ring 51 is embedded in one side of the embedded housing 2 and located inside the side wing docking groove 412;

[0115] Pump 52 is embedded in the side wall of the embedded housing 2 and connected to the airbag ring 51 through the main pipe 53;

[0116] Specifically, the joint sealing mechanism 5 further includes:

[0117] A three-way connector 55 is installed on the main pipe 53 between the pump 52 and the airbag ring 51;

[0118] Branch pipe 56, one end of which is connected to the main pipe 53 via the tee joint 55, and the other end of which is connected to the inlet end of the micro accumulator 57;

[0119] A one-way valve 54 is installed on the main pipeline 53 between the pump 52 and the tee joint 55, and its conduction direction is unidirectional from the pump 52 to the tee joint 55.

[0120] The micro accumulator 57 has its inlet end connected to the other end of the branch pipe 56, and its tail end is a closed end;

[0121] Pressure sensor 58 is installed on the main pipe 53 between the tee connector 55 and the airbag ring 51 and is electrically connected to the controller 7.

[0122] This device adopts a split design concept of "pre-embedded base + replaceable functional module". A pre-embedded mounting base 1 is pre-fixed on the wall side as the standard mounting base, while the embedded housing 2 serves as an independent functional module. It can be guided and corrected by an automatic centering mechanism 3, locked and fixed by an adjustable docking mechanism 4, and sealed and protected by a joint sealing mechanism 5, achieving "plug-and-play" rapid installation and replacement. The controller 7, as the core decision-making unit, coordinates all actuators to automatically complete the docking, locking, and sealing process according to a predetermined sequence. The sensing and monitoring mechanism 6 continuously monitors internal environmental parameters during operation to ensure the safe and reliable operation of the metering box.

[0123] The working process of this wall-mounted electricity metering box is detailed in stages as follows:

[0124] Phase 1: Wall installation of pre-embedded fixing seat 1

[0125] The pre-embedded fixing seat 1 is pre-fixed in the embedded groove pre-cut in the wall during the wall construction stage. Through the pre-embedded bolt holes 111 set at the four corners of the pre-embedded fixing plate 11, the pre-embedded fixing plate 11 is firmly anchored to the bottom of the embedded groove in the wall using expansion bolts, so that the pre-embedded fixing seat 1 constitutes a standard installation base on the side of the wall.

[0126] After installation, the pre-embedded fixing seat 1 remains fixed in place for a long time. All the actuators set on its side wall—including the side wing docking plate 411 and the spacing adjustment component 42 of the adjustable docking mechanism 4, as well as the top docking plate 31 and the lifting moving plate 32 of the automatic centering mechanism 3—are in a standby state, waiting for the embedded box 2 to be connected.

[0127] Phase Two: Embedding and Automatic Alignment of Embedded Cabinet 2

[0128] The embedded housing 2, as a standardized functional module independent of the pre-embedded fixing base 1, is pushed into the pre-cut embedding groove in the wall in a detachable and replaceable manner. During the embedding process, the automatic centering mechanism 3 is activated.

[0129] (a) Pre-positioning of the top mating plate 31

[0130] The top mating plate 31, located at the center of the top of the pre-embedded fixing plate 11, consists of horizontally mirror-symmetrical mating plates 311. The positioning post 313, which is fixedly installed inside the embedded housing 2, and the positioning hole 312 that passes through the horizontal mating plate 311 form a one-to-one plug-in mating relationship.

[0131] When the embedded housing 2 approaches the predetermined installation position, the positioning post 313 first enters the positioning hole 312. Through the conical guide cooperation between the positioning post 313 and the positioning hole 312, the embedded housing 2 is guided to automatically correct the offset in the horizontal direction, and the initial centering is achieved.

[0132] (ii) Lifting and adjusting the lifting and moving plate 32

[0133] If the embedded housing 2 has a positional deviation in the vertical direction, the controller 7 starts the drive motor 33. The drive motor 33 is fixedly installed on the top of the lifting and moving slot 321, and the threaded rod 331 fixedly installed at its output end rotates, driving the lifting and moving plate 32 threadedly connected to the threaded rod 331 to move up and down along the lifting and moving slot 321.

[0134] One end of the lifting moving plate 32 is fixedly connected to the top docking plate 31. Therefore, the top docking plate 31 moves up and down synchronously with the lifting moving plate 32, driving the horizontal docking plate 311 and its positioning hole 312 to move in the vertical direction until the positioning post 313 is completely aligned with the positioning hole 312, thus achieving vertical alignment correction.

[0135] The guide auxiliary rod 34 is fixedly installed in the lifting moving groove 321 and slides through the lifting moving plate 32. It is arranged in a linear array along the length of the lifting moving plate 32. During the lifting and moving process, it guides the lifting moving plate 32 and prevents deflection, ensuring smooth and stable lifting and moving.

[0136] When the positioning pin 313 is fully inserted into the positioning hole 312 and the embedded housing 2 reaches the predetermined installation position, the automatic centering mechanism 3 completes the centering correction.

[0137] Phase 3: Electrical Connections and Identification

[0138] As the positioning pin 313 is inserted into the positioning hole 312, the electrical connection terminal group 71 simultaneously completes the electrical connection:

[0139] The spring pins 711, which are evenly distributed around the positioning post 313, correspond one-to-one with the electrical contact points 712, which are evenly distributed around the positioning hole 312, and press them together to form a reliable electrical connection path.

[0140] The controller 7 establishes a pluggable electrical connection with each servo motor and sensor on the pre-embedded mounting base 1 through this electrical connection path. At this time, the controller 7 gains control over each actuator on the side of the pre-embedded mounting base 1.

[0141] Simultaneously, the RFID reader 35 of the automatic alignment mechanism 3—embedded and installed in the top of the embedded housing 2—corresponds to the RFID identification chip 36 on the top of the top docking plate 31, performing near-field radio frequency identification communication. The controller 7 reads the identity information stored in the RFID identification chip 36 to verify the legitimacy of the embedded housing 2. If the authentication is successful, the controller 7 confirms that the housing is an authorized module and allows the locking process to continue; if the authentication fails, the controller 7 issues an alarm signal and terminates subsequent actions to prevent unauthorized housings from accessing the system.

[0142] Fourth stage: Locking and fixing of adjustable docking mechanism 4

[0143] After confirming that the embedded housing 2 has reached the predetermined installation position and that authentication has been successful, the controller 7 activates the adjustable docking mechanism 4 to perform the locking operation.

[0144] (a) Adjustment of the spacing of the side wing docking plates 411

[0145] The adjustable docking mechanism 4 has docking plate assemblies 41 respectively located in the upper middle and lower middle parts of the side wall of the pre-embedded fixing base 1, and consists of a pair of side wing docking plates 411 arranged horizontally in a mirror image symmetrically on the side wall of the pre-embedded fixing base 1. The embedded housing 2 has a side wing docking groove 412 on one side, which corresponds to the side wing docking plate 411, and the side wing docking groove 412 is opened through the outer wall of the embedded housing 2.

[0146] The controller 7 activates the first servo motor 424 of the spacing adjustment assembly 42. The first servo motor 424 is fixedly installed between the side wing docking plates 411 of the same docking plate group 41, and its output end extends into the first central transmission groove 425, driving the first transmission gear 426 fixedly installed at the output end to rotate.

[0147] The first transmission gear 426 meshes with the second transmission gear 427, which is fixedly installed at one end of the first threaded connecting rod 423. The first threaded connecting rod 423 is movably installed in the sliding sealing groove 422 and threadedly connected to the sliding sealing block 421. The sliding sealing block 421 and the side wing mating plate 411 are fixedly connected in a one-to-one correspondence. The sliding seal is installed in the sliding sealing groove 422 opened in the side wall of the pre-embedded fixing seat 1, and its length is greater than the width of the side wing mating plate 411.

[0148] As the first threaded connecting rod 423 rotates, the sliding sealing block 421 slides along the sliding sealing groove 422, causing the side wing docking plate 411 fixedly connected thereto to move synchronously. Driven by the first servo motor 424, the pair of side wing docking plates 411 move synchronously towards or away from each other, precisely adjusting the distance between the two side wing docking plates 411 so that it precisely matches the groove spacing of the side wing docking grooves 412 on both sides of the embedded housing 2.

[0149] (ii) Locking action of the extrusion mechanism 43

[0150] After the side wing docking plate 411 is adjusted into place, the controller 7 starts the extrusion mechanism 43.

[0151] The second servo motor 431 of the extrusion mechanism 43 is fixedly installed on the outer wall of the side wing docking plate 411, and its output end extends into the second central transmission groove 432 of the side wing docking plate 411, driving the third transmission gear 433 fixedly installed at the output end to rotate.

[0152] The third transmission gear 433 meshes with the fourth transmission gear 438, which is fixedly mounted on one end of the second threaded connecting rod 437. The second threaded connecting rod 437 is movably mounted on both sides of the second central transmission groove 432, with its far end threadedly connected to the corresponding moving block 434.

[0153] The second threaded connecting rod 437 rotates to drive the moving block 434 to extend to both sides along the second central transmission groove 432. A pressing contact block 435 is fixedly installed at the far end of the moving block 434. The pressing contact block 435 penetrates the outer wall of the side wing docking plate 411 and extends synchronously with the extension of the moving block 434, entering the side wing docking groove 412 of the embedded box 2 side wall, and slidingly contacting the pressing groove 436 of the side wall of the side wing docking groove 412.

[0154] As the extrusion contact block 435 continues to extend into the extrusion groove 436, the end of the extrusion contact block 435 gradually approaches the bottom wall of the extrusion groove 436 until the two are in close contact. At this time, the side wing mating plate 411, through the wedge-shaped engagement of the extrusion contact block 435 and the extrusion groove 436, pulls and locks the embedded housing 2 toward the pre-embedded fixing seat 1, thereby achieving a rigid connection between the embedded housing 2 and the pre-embedded fixing seat 1.

[0155] (III) Feedback on positioning and confirmation of locking

[0156] When the extrusion contact block 435 extends into the extrusion groove 436 to a predetermined depth, the detection end of the position feedback sensor 439 installed at the end of the extrusion contact block 435 abuts against the bottom wall of the extrusion groove 436. The position feedback sensor 439 is embedded in the mounting countersunk hole 4391 opened on the end face of the extrusion contact block 435, and its detection end extends out of the end face of the extrusion contact block 435.

[0157] The positioning feedback sensor 439 generates a positioning trigger signal after being pressed at the detection end, and transmits the positioning trigger signal to the controller 7. Based on the received positioning trigger signal, the controller 7 confirms that the locking is in place, then controls the second servo motor 431 to stop running and locks the current locking state, maintaining the tight contact between the extrusion contact block 435 and the extrusion groove 436.

[0158] Phase 5: Sealing operation of joint sealing mechanism 5

[0159] After the adjustable docking mechanism 4 completes locking, the controller 7 activates the joint sealing mechanism 5 to seal the joint at the junction of the pre-embedded fixing seat 1 and the embedded box 2.

[0160] (a) Inflate the airbag ring 51

[0161] The controller 7 starts the pump 52, which is embedded in the side wall of the embedded housing 2 and connected to the airbag ring 51 through the main pipe 53. The airbag ring 51 is embedded in one side of the embedded housing 2 and is located inside the side wing docking groove 412.

[0162] The high-pressure gas generated by pump 52 is transported through main pipeline 53, and passes through check valve 54 and tee joint 55 in sequence. Part of it enters airbag ring 51, causing airbag ring 51 to expand and tightly fill the joint gap between pre-embedded fixing seat 1 and embedded box 2; the other part enters micro accumulator 57 through branch pipeline 56.

[0163] (ii) Energy storage and pressure maintenance of micro accumulator 57

[0164] The tee connector 55 is installed on the main pipe 53 between the pump 52 and the airbag ring 51. One end of the branch pipe 56 is connected to the main pipe 53 via the tee connector 55, and the other end is connected to the inlet end of the micro accumulator 57.

[0165] The inlet of the micro accumulator 57 is connected to the branch pipe 56, and its tail end is a closed end. High-pressure gas enters the micro accumulator 57 through the branch pipe 56, compresses the elastic element inside, and stores the gas pressure energy in the micro accumulator 57 in the form of elastic potential energy.

[0166] A one-way valve 54 is installed on the main pipeline 53 between the pump 52 and the tee joint 55, and its conduction direction is unidirectional from the pump 52 to the tee joint 55. When the pump 52 stops working, the one-way valve 54 automatically closes to prevent high-pressure gas from flowing back from the air bladder ring 51 and the micro accumulator 57 to the pump 52 side.

[0167] After the pump 52 stops, the micro accumulator 57 continuously releases the stored energy and replenishes the gas to the main pipeline 53 through the branch pipe 56 and the tee joint 55, maintaining the pressure stability inside the airbag ring 51 and achieving long-term sealing.

[0168] (III) Pressure monitoring and automatic pressure compensation

[0169] Pressure sensor 58 is installed on the main pipe 53 between tee connector 55 and airbag ring 51, and is electrically connected to controller 7. Pressure sensor 58 monitors the gas pressure in the main pipe 53 in real time and transmits the pressure signal to controller 7.

[0170] When the pressure sensor 58 detects that the pressure inside the main pipeline 53 is lower than the preset threshold (possibly due to a minor leak in the air bladder ring 51 or temperature changes), the controller 7 restarts the pump 52 to replenish gas to the air bladder ring 51 and the micro accumulator 57 until the pressure returns to the set value, at which point it stops again. This automatic pressure replenishment mechanism ensures that the joint sealing mechanism 5 maintains an effective seal for a long period of time.

[0171] It should be noted that the joint sealing mechanism and the heat dissipation function of this device are independent of each other and do not interfere with each other. The joint sealing mechanism is located at the junction of the pre-embedded fixing base and the embedded enclosure, sealing only the installation joint between the two. Its function is to prevent external moisture from seeping into the pre-cut embedded groove in the wall along the joint. Heat dissipation of the enclosure is achieved through separate heat dissipation channels on the side wall or back panel of the embedded enclosure. The heat dissipation channels and the joint sealing area are spatially separated and functionally independent. Whether the joint is sealed or not does not affect the normal ventilation of the heat dissipation channels, and the opening and closing of the heat dissipation channels does not affect the sealing performance of the joint sealing mechanism. Therefore, this device achieves efficient sealing at the joint while fully preserving the heat dissipation capacity of the embedded enclosure itself. There is no issue of sacrificing heat dissipation for enhanced sealing, thus balancing the improved protection level with the heat dissipation requirements of electrical equipment. It is suitable for long-term stable operation in humid and dusty outdoor environments.

[0172] Phase 6: Operational Status Monitoring

[0173] When the embedded enclosure 2 is operating normally, the sensing and monitoring mechanism 6 continues to work:

[0174] Temperature sensor 61: Real-time monitoring of the temperature inside the embedded enclosure 2. When the temperature rises abnormally, the controller 7 can trigger an alarm or start heat dissipation measures.

[0175] Humidity sensor 62: Real-time monitoring of humidity inside the embedded housing 2 to prevent condensation from causing a decrease in insulation performance or a short circuit;

[0176] Smoke sensor 63: Real-time monitoring of whether smoke is generated inside the embedded enclosure 2, enabling early fire detection.

[0177] The aforementioned sensors transmit monitoring data to the controller 7 in real time. The controller 7 displays key parameters on the display screen 82 of the exposed panel 8 for on-site viewing by maintenance personnel. Maintenance personnel can perform parameter queries, manual control, and other operations on the device using the control buttons 81 on the exposed panel 8.

[0178] III. Disassembly and Replacement Workflow

[0179] When it is necessary to replace embedded enclosure 2, the process is executed in reverse order of the installation process:

[0180] Maintenance personnel issue disassembly commands via control buttons 81 on the exposed panel 8;

[0181] The controller 7 controls the second servo motor 431 to reverse, driving the extrusion contact block 435 to exit from the extrusion groove 436 and release the locking state;

[0182] Controller 7 controls the first servo motor 424 to reverse, driving the side wing docking plate 411 to open outward and release the docking;

[0183] Controller 7 controls drive motor 33 to reverse, driving lifting moving plate 32 to descend and releasing centering positioning;

[0184] The spring pin 711 of the electrical connection terminal group 71 disengages from the electrical connection contact 712, and the electrical connection is broken.

[0185] Remove the embedded enclosure 2 from the embedding slot to complete the disassembly. Install the new enclosure following the procedures described in stages two through five above.

[0186] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0187] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A wall-mounted electricity metering box, characterized in that, include: The pre-embedded fixing base (1) is fixedly installed in the embedded groove pre-opened in the wall to form a standard installation base on the side of the wall, including a pre-embedded fixing plate (11), and the pre-embedded fixing plate (11) has pre-embedded bolt holes (111) at the four corners. The embedded box (2) is embedded in the pre-opened groove in the wall in a detachable and replaceable manner. It is detachably connected to the pre-embedded fixing plate (11) by an adjustable docking mechanism (4), forming a standardized functional module independent of the pre-embedded fixing seat (1). An automatic centering mechanism (3) is set at the top center of the pre-embedded fixing plate (11) to guide the embedded box (2) to automatically correct itself relative to the pre-embedded fixing seat (1) to the predetermined installation position during the embedding process of the embedded box (2); An adjustable docking mechanism (4) is set on the pre-embedded fixing plate (11) and is used to lock the embedded box (2) to the pre-embedded fixing seat (1) after the automatic centering mechanism (3) completes the centering. The joint sealing mechanism (5) is located at the junction of the pre-embedded fixing seat (1) and the embedded box (2) and is used to seal the joint between the two after the adjustable docking mechanism (4) is locked. The sensing and monitoring mechanism (6) consists of a temperature sensor (61), a humidity sensor (62) and a smoke sensor (63) integrated and installed inside the embedded housing (2), and is used to monitor the internal operating environment of the embedded housing (2) in real time. The controller (7) is fixedly installed on the inner wall of the embedded housing (2) and is electrically connected to the servo motor and sensor on the pre-embedded fixing seat (1) via the electrical connection terminal group (71). It is used to control the adjustable docking mechanism (4) to perform locking action after the embedded housing (2) is embedded in place. An exposed panel (8) is hinged to the outside of the embedded housing (2). The exposed panel (8) is provided with control buttons (81) and a display screen (82) that are electrically connected to the controller (7).

2. The wall-mounted energy metering box according to claim 1, characterized in that, The automatic centering mechanism (3) includes: The top docking plate (31) is located at the center of the top of the pre-embedded fixing plate (11). It is composed of horizontal docking plates (311) arranged in a horizontal mirror symmetry. The horizontal docking plate (311) has a positioning hole (312) through it. The embedded box (2) has a positioning column (313) that corresponds to the positioning hole (312) in a one-to-one manner. The lifting and moving plate (32) is movably installed in the lifting and moving groove (321) opened in the pre-embedded fixed plate (11), and one end of the top docking plate (31) is fixedly connected to the side wall of the lifting and moving plate (32). A drive motor (33) is fixedly installed on the top of the lifting moving slot (321), and a threaded rod (331) is fixedly installed at the output end. The threaded rod (331) is threadedly connected to the lifting moving plate (32). The guide auxiliary rod (34) is fixedly installed in the lifting moving groove (321) and slides through the lifting moving plate (32), and is arranged in a linear array along the length direction of the lifting moving plate (32).

3. A wall-mounted energy metering box according to claim 2, characterized in that: The electrical connection terminal group (71) includes: Spring pins (711) are evenly distributed around the periphery of the positioning post (313); Electrical contact points (712) are evenly distributed around the positioning hole (312) and are set one-to-one with the spring pin (711).

4. A wall-mounted energy metering box according to claim 2, characterized in that: The automatic centering mechanism (3) further includes: An RFID reader (35) is embedded in the top of the embedded housing (2); An RFID identification chip (36) is embedded in the top of the top docking plate (31) and is correspondingly set with the RFID reader (35).

5. A wall-mounted energy metering box according to claim 1, characterized in that: The adjustable docking mechanism (4) includes: The docking plate group (41) is respectively set in the upper middle and lower middle parts of the side wall of the pre-embedded fixing seat (1), and is composed of a pair of side wing docking plates (411) arranged in a horizontal mirror symmetrical manner on the side wall of the pre-embedded fixing seat (1). The embedded box (2) has a side wing docking groove (412) that corresponds to the side wing docking plate (411) on one side. The side wing docking groove (412) is opened through the outer wall of the embedded box (2). A spacing adjustment component (42) is disposed between the side wing docking plates (411) to adjust the spacing between the side wing docking plates (411).

6. A wall-mounted energy metering box according to claim 5, characterized in that: The spacing adjustment component (42) includes: The sliding sealing block (421) is fixedly connected to the side wing docking plate (411) in a one-to-one correspondence. The sliding seal is installed in the sliding sealing groove (422) opened on the side wall of the pre-embedded fixing seat (1), and its length is greater than the width of the side wing docking plate (411). The first threaded connecting rod (423) is movably installed in the sliding sealing groove (422) and threadedly connected to the sliding sealing block (421). The first servo motor (424) is fixedly installed between the side wing docking plates (411) of the same docking plate group (41), and its output end extends into the first central transmission groove (425), and a first transmission gear (426) is fixedly installed thereon. One end of the first threaded connecting rod (423) extends into the first central transmission groove (425) and is fixedly installed with a second transmission gear (427) that meshes with the first transmission gear (426).

7. A wall-mounted energy metering box according to claim 5, characterized in that: A pressing mechanism (43) is provided between the side wing docking plate (411) and the pre-embedded fixing seat (1), the pressing mechanism (43) includes: The second servo motor (431) is fixedly installed on the outer wall of the side wing docking plate (411), and its output end extends into the second central transmission groove (432) of the side wing docking plate (411), and a third transmission gear (433) is fixedly installed thereon. The movable block (434) is horizontally mirror-symmetrically arranged on both sides of the second central transmission groove (432), and the far end is fixedly installed with a pressing contact block (435). The pressing contact block (435) penetrates the outer wall of the side wing docking plate (411) and slides in contact with the pressing groove (436) on the side wall of the side wing docking groove (412). The second threaded connecting rod (437) is movably installed on both sides of the second central transmission groove (432). One end of the rod is fixedly installed with a fourth transmission gear (438) that meshes with the third transmission gear (433), and the other end is threadedly connected to the corresponding moving block (434).

8. A wall-mounted energy metering box according to claim 7, characterized in that: The extrusion mechanism (43) further includes: A position feedback sensor (439) is embedded in the end of the extrusion contact block (435) and electrically connected to the controller (7); The end face of the extrusion contact block (435) is provided with a mounting countersunk hole (4391), and the position feedback sensor (439) is embedded in the mounting countersunk hole (4391), with its detection end (4392) extending out of the end face of the extrusion contact block (435). The position feedback sensor (439) is used to generate a position trigger signal when the extrusion contact block (435) extends into the extrusion groove (436) and the detection end abuts against the bottom wall of the extrusion groove (436), and transmits the position trigger signal to the controller (7). The controller (7) controls the second servo motor (431) to stop operating and lock the current locking state according to the received position trigger signal.

9. A wall-mounted energy metering box according to claim 1, characterized in that: The joint sealing mechanism (5) includes: The airbag ring (51) is embedded in one side of the embedded housing (2) and located inside the side wing docking groove (412); The pump (52) is embedded in the side wall of the embedded housing (2) and connected to the airbag ring (51) through the main pipe (53).

10. A wall-mounted energy metering box according to claim 9, characterized in that: The joint sealing mechanism (5) further includes: A three-way connector (55) is installed on the main pipe (53) between the pump (52) and the airbag ring (51); The branch pipe (56) is connected at one end to the main pipe (53) through the tee joint (55), and at the other end to the inlet end of the micro accumulator (57). A one-way valve (54) is installed on the main pipeline (53) between the pump (52) and the tee joint (55), and its conduction direction is unidirectional from the pump (52) to the tee joint (55); The micro accumulator (57) has its inlet end connected to the other end of the branch pipe (56) and its tail end is a closed end; The pressure sensor (58) is installed on the main pipe (53) between the tee connector (55) and the airbag ring (51) and is electrically connected to the controller (7).

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