Safe multifunctional electric energy metering box

Abstract

The application belongs to the technical field of electric energy metering box, and provides a safe multifunctional electric energy metering box, which comprises a box body, a box door hinged to one side of the box body, an inner door sealing flange arranged on the inner side of the box door, a box body sealing flange arranged on the box body in correspondence, and a sealing assembly; the sealing assembly comprises a bracing mechanism arranged on the box door and a ring-shaped self-locking sealing ring; the ring-shaped self-locking sealing ring is sleeved on the bracing mechanism, and the ring-shaped self-locking sealing ring has a bracing state in which the outer side of the ring-shaped self-locking sealing ring is tightly fitted with the inner door sealing flange and the box body sealing flange, and a retraction state in which the outer side of the ring-shaped self-locking sealing ring is separated from the inner door sealing flange and the box body sealing flange; the bracing mechanism is configured to place the ring-shaped self-locking sealing ring in the bracing state when sealing and locking are needed, and to place the ring-shaped self-locking sealing ring in the retraction state when sealing and locking are to be released. The safe multifunctional electric energy metering box has good sealing effect and locking effect on the box door, and is high in safety.

Description

Technical Field

[0001] This invention relates to the field of electricity metering box technology, and specifically to a safe, multifunctional electricity metering box. Background Technology

[0002] The multi-functional power metering box is a complete set of power distribution equipment that integrates power metering, data acquisition, electrical protection, and wiring management. It is widely used in residential communities and industrial and commercial power distribution systems to achieve accurate power metering, power consumption data transmission, and safety protection of metering circuits. Its structure can be divided into a box body and metering modules, wiring modules, protection modules, etc., installed inside the box body. Each module works together to complete the entire process from power acquisition and metering to data uploading.

[0003] Traditional multi-functional electricity metering boxes generally use padlocks or simple snap-lock closures, relying on rubber strips for sealing. This has three major drawbacks: first, the seal is unreliable, easily allowing water and dust to seep in due to temperature differences and vibrations; second, there is no self-locking mechanism, relying solely on external locks for theft prevention, making them vulnerable to forced entry; and third, the sealing ring remains stationary for extended periods, leading to water accumulation in the top area, accelerating material aging and cracking, and resulting in high maintenance costs. Existing improvement solutions mostly focus on single problems and lack a systematic, integrated design. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the purpose of this invention is to provide a safe and multifunctional power metering box to solve or alleviate the above-mentioned technical problems in the prior art.

[0005] To achieve the above objectives, the present invention provides a safe, multifunctional energy metering box, comprising:

[0006] A box body, with a door hinged to one side, an inner door sealing flange on the inner side of the door, and a corresponding box body sealing flange on the box body; and

[0007] A sealing assembly, the sealing assembly including an expansion mechanism disposed on the door and an annular self-locking sealing ring;

[0008] The annular self-locking sealing ring is sleeved on the expansion mechanism. The annular self-locking sealing ring has an expanded state in which its outer side is tightly fitted with the inner door sealing flange and the box sealing flange, and a retracted state in which its outer side is separated from the inner door sealing flange and the box sealing flange.

[0009] The expansion mechanism is configured as follows:

[0010] When sealing and locking are required, the annular self-locking sealing ring is placed in the expanded state;

[0011] When it is necessary to release the seal and lock, the annular self-locking sealing ring is placed in the retracted state.

[0012] Furthermore, the outer side of the annular self-locking sealing ring is provided with an interlocking sealing groove that is adapted to the inner door sealing flange and the box sealing flange.

[0013] Furthermore, the expansion mechanism includes:

[0014] The expansion wheel has an annular limiting groove on its outer circumferential wall that mates with the annular self-locking seal ring. Four expansion wheels are provided, and the annular self-locking seal ring is fitted onto each of the four expansion wheels. The four expansion wheels are respectively located at the four corners of the cabinet door and are movably connected to the cabinet door. Each expansion wheel has an expansion position that allows the annular self-locking seal ring to be in the expanded state and a retracted position that allows the annular self-locking seal ring to be in the retracted state.

[0015] A first driving mechanism is used to drive the expansion wheel to switch between the expansion position and the retracted position.

[0016] Furthermore, the first driving mechanism includes:

[0017] A screw, which is rotatably connected to the cabinet door;

[0018] There are two nuts, both of which are fitted onto the screw and threaded together with the screw. When the screw rotates, the two nuts move in opposite directions.

[0019] The expansion wheel shaft corresponds one-to-one with the expansion wheel and is movably connected to the box door. The four expansion wheels are respectively sleeved on the corresponding expansion wheel shaft.

[0020] The linkage push arms are provided in two sets, with two arms in each set. In one set, the first ends of the two linkage push arms are rotatably connected to the two expansion wheel shafts located on the first side of the door, and the second ends are hinged to one of the two nuts. In the other set, the first ends of the two linkage push arms are rotatably connected to the two expansion wheel shafts located on the second side of the door, and the second ends are hinged to the other nut.

[0021] An electric motor is mounted on the door of the housing, and the power output shaft of the motor is connected to the screw drive to drive the screw to rotate.

[0022] Furthermore, it also includes a rotary drive mechanism for driving the target expansion wheel to rotate along its axial direction.

[0023] Furthermore, the rotary drive mechanism includes a first rotary drive unit and a second rotary drive unit, the first rotary drive unit and the second rotary drive unit being respectively used to drive the corresponding target expansion wheel to rotate along a preset direction, and the first rotary drive unit and the second rotary drive unit being configured as follows:

[0024] When the first driving mechanism drives the expansion wheel to move from the expansion position to the retraction position, the first rotary driving unit drives the corresponding target expansion wheel to rotate in a preset direction, while the second rotary driving unit will not drive the corresponding target expansion wheel to rotate.

[0025] When the first driving mechanism drives the expansion wheel to move from the retracted position to the expansion position, the second rotary driving unit drives the corresponding target expansion wheel to rotate in a preset direction, while the first rotary driving unit does not drive the corresponding target expansion wheel to rotate.

[0026] Furthermore, the first rotary drive unit and the second rotary drive unit have the same structure, which includes:

[0027] A rack, wherein the rack is arranged along the direction of movement of the expansion wheel shaft, and the rack is fixedly connected to the door; and

[0028] The gear is coaxially sleeved on the corresponding expansion wheel shaft and is connected to the expansion wheel shaft through a one-way transmission assembly.

[0029] Furthermore, the four sidewalls of the inner door sealing flange and the housing sealing flange are convex arc-shaped.

[0030] Furthermore, it also includes:

[0031] The identity verification module includes a feature reader and an identity comparison controller electrically connected to the feature reader. The feature reader is used to collect the unique features of the identity recognition carrier, which is a biometric carrier or a physical identification carrier. The identity comparison controller is used to match the collected unique features with a preset identity template and output the identity verification result.

[0032] A control module electrically connected to the authentication module and the motor, the control module being used to control the start and stop of the motor based on the authentication result.

[0033] Furthermore, the biometric carrier is a face or fingerprint, and the physical identification carrier is an identification card.

[0034] The beneficial effects of this invention are:

[0035] The safety-type multi-functional electricity metering box provided by this invention adopts an annular self-locking sealing ring and an expansion mechanism, which allows the annular self-locking sealing ring to simultaneously press the cover and generate reverse frictional resistance in the expanded state. This solves the problem that traditional metering boxes rely on external locks for theft prevention and that the sealing and locking functions are separated, thus achieving integrated protection of "sealing is self-locking".

[0036] Because a fitting sealing groove is set on the outside of the annular self-locking sealing ring to fit into the inner door sealing flange and the box sealing flange, and in conjunction with the outwardly convex arc-shaped sealing flange structure, a labyrinthine multi-contact path is formed at the sealing interface. This solves the problem of leakage caused by manufacturing tolerances or deformation in flat compression seals, significantly improving the waterproof and dustproof rating and sealing durability. At the same time, the cooperation between the annular self-locking sealing ring and the inner door sealing flange and the box sealing flange significantly improves the locking effect on the box door.

[0037] By adding a rotary drive mechanism consisting of a rack, pinion, gear, and one-way transmission components, and configuring the first and second rotary drive units to work alternately, the annular self-locking seal ring accumulates a small amount of rotation in a single direction during each door opening and closing process. This solves the problem of localized accelerated aging caused by long-term static exposure of the top area of ​​the seal ring to water or ultraviolet radiation, effectively extending the service life of the annular self-locking seal ring. Attached Figure Description

[0038] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0039] Figure 1 This is a perspective view of a safety-type multifunctional energy metering box provided in an embodiment of the present invention;

[0040] Figure 2 for Figure 1 The diagram shows a three-dimensional view of the safety-type multi-functional energy metering box with the door open and the annular self-locking seal ring in an expanded state.

[0041] Figure 3 for Figure 1 The diagram shows a three-dimensional view of the safety-type multi-functional energy metering box with the door open and the annular self-locking seal in the retracted state.

[0042] Figure 4 for Figure 1 A perspective view of the sealing assembly of the safety-type multi-functional energy metering box shown;

[0043] Figure 5 for Figure 4 An enlarged view of part A shown;

[0044] Figure 6 for Figure 4 An enlarged view of section B is shown;

[0045] Figure 7 for Figure 4 An enlarged view of section C is shown.

[0046] Figure 8 for Figure 1 A partial sectional view of the safety-type multi-functional energy metering box shown;

[0047] Figure 9 for Figure 1 The diagram shows the circuit principle block diagram of the unlocking authentication module, control module, and motor of the security-type multi-functional energy metering box.

[0048] Figure label:

[0049] 110. Enclosure; 111. Enclosure sealing flange; 120. Enclosure door; 121. Inner door sealing flange; 130. Guide rail; 131. Guide limiting groove; 210. Annular self-locking sealing ring; 211. Fitting sealing groove; 220. Expansion wheel; 221. Annular limiting groove; 230. Screw; 240. Nut; 250. Expansion wheel shaft; 260. Connecting rod push arm; 270. Motor; 310. Rack; 320. Gear; 330. One-way transmission assembly; 410. Identity verification module; 411. Feature reader; 412. Identity comparison controller; 420. Control module. Detailed Implementation

[0050] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0051] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application should have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

[0052] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0053] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly defined.

[0054] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0055] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0056] Example 1

[0057] like Figure 1-8 As shown, the present invention provides a safe multi-functional electricity metering box, including a box body 110, a box door 120 and a sealing assembly.

[0058] The enclosure 110 serves as the basic carrier of the entire metering box, providing physical protection, dust and water resistance, anti-theft, insulation, and mechanical pressure resistance. It also provides fixed support for the internal modules, ensuring stable operation of the equipment in complex outdoor / indoor environments and preventing interference or damage to the metering circuit caused by human or environmental factors. A door 120 is hinged to one side of the enclosure 110.

[0059] The enclosure 110 contains a metering module, a wiring module, and a protection module.

[0060] The metering module is the core functional module, which determines the accuracy of electricity metering and is also the "metering core" of the metering box. It consists of a multi-functional electricity meter and metering transformers (current transformers CT / voltage transformers PT).

[0061] The wiring module consists of terminal blocks, junction boxes, busbars, and insulating sleeves. It is used to reliably connect the main circuit to the internal modules of the metering box, standardize wiring methods, and ensure stable transmission of current and voltage signals. Simultaneously, the partitioned design of the insulating sleeves and terminal blocks prevents short circuits and poor contact, facilitating later maintenance, wiring verification, and meter replacement.

[0062] The protection module is the safety guarantee module of the metering box, which prevents the metering circuit from being damaged due to electrical faults, and at the same time avoids the fault from spreading and affecting the main power distribution system. The protection configuration of low-voltage metering boxes and high-voltage metering boxes are slightly different. The core components include fuses, miniature circuit breakers (MCBs), surge protectors (SPDs), and anti-theft wiring devices.

[0063] Since the metering module, wiring module, and protection module are all existing technologies and are not the inventive point of this invention, they will not be described in detail here, and are not fully shown in the accompanying drawings.

[0064] The inner edge of the door 120 is provided with an inner door sealing flange 121, and the opening edge of the box body 110 is provided with a box body sealing flange 111 corresponding to the inner door sealing flange 121.

[0065] The sealing assembly includes an expansion mechanism mounted on the door 120 and an annular self-locking sealing ring 210.

[0066] The annular self-locking seal ring 210 is sleeved on the expansion mechanism. The annular self-locking seal ring 210 has an expanded state in which its outer side is tightly fitted with the inner door sealing flange 121 and the box sealing flange 111, and a retracted state in which its outer side is separated from the inner door sealing flange 121 and the box sealing flange 111.

[0067] The expansion mechanism is configured as follows:

[0068] When sealing and locking are required, the annular self-locking seal ring 210 is placed in an expanded state;

[0069] When it is necessary to release the seal and lock, the annular self-locking seal ring 210 is placed in the retracted state.

[0070] During operation, after the user closes the cabinet door 120, the expansion mechanism is activated, which pushes the annular self-locking sealing ring 210 to expand outward, so that its outer circumference tightly presses against the inner door sealing flange 121 and the cabinet sealing flange 111, forming a continuous closed sealing interface. At the same time, because the annular self-locking sealing ring 210 is forcefully expanded and tightly pressed against the inner door sealing flange 121 and the cabinet sealing flange 111, the annular self-locking sealing ring 210 applies a force to the cabinet door 120, thereby achieving mechanical self-locking of the cabinet door 120 without the need for additional locks.

[0071] When the door needs to be opened, the expansion mechanism is released, and the annular self-locking sealing ring 210 retracts under its own elastic restoring force, disengaging from the sealing flange, and the door 120 can be opened freely.

[0072] In this embodiment, the sealing and locking actions are combined into one, which not only greatly improves the waterproof and dustproof level, but also fundamentally eliminates the risk of the external padlock being cut or pried open, significantly enhancing the physical protection capability.

[0073] Example 2

[0074] like Figure 5 , Figure 6 and Figure 8 As shown, in this embodiment, an interlocking sealing groove 211 is provided on the outer side of the annular self-locking sealing ring 210. The contour of the interlocking sealing groove 211 precisely matches the contact surface of the inner door sealing flange 121 and the box sealing flange 111.

[0075] When the annular self-locking sealing ring 210 is expanded, the inner door sealing flange 121 and the housing sealing flange 111 simultaneously embed into the fitting sealing groove 211, forming a triple contact path of "convex-concave-convex", thus constituting a labyrinthine sealing structure. This structure effectively extends the penetration path of water vapor and dust, maintaining internal dryness and cleanliness even under high-pressure water washing or sandstorm environments. Compared to planar compression sealing, it offers stronger sealing reliability, higher tolerance for manufacturing tolerances, and simpler assembly. Furthermore, compared to locking based on frictional resistance, this mechanical locking formed by the simultaneous embedding of the inner door sealing flange 121 and the housing sealing flange 111 into the fitting sealing groove 211 provides a stronger locking effect.

[0076] Example 3

[0077] like Figures 2-7 As shown, in this embodiment, the expansion mechanism includes an expansion wheel 220 and a first drive mechanism.

[0078] Four expansion wheels 220 are provided, each with an annular limiting groove 221 on its outer circumference. An annular self-locking seal ring 210 is embedded in this groove to prevent axial slippage. The four expansion wheels 220 are respectively installed at the four corners of the door 120. The expansion wheels 220 are movably connected to the door 120. Each expansion wheel 220 has an expansion position that allows the annular self-locking seal ring 210 to be in an expanded state and a retracted position that allows the annular self-locking seal ring 210 to be in a retracted state. A first drive mechanism is used to drive the expansion wheels 220 to switch between the expansion position and the retracted position.

[0079] During expansion, the first drive mechanism synchronously drives the four expansion wheels 220 to move outward along a preset direction (e.g., the diagonal direction of the door) to the expansion position, thereby evenly expanding the annular self-locking sealing ring 210.

[0080] During retraction, the first drive mechanism synchronously drives the four expansion wheels 220 to move inward along a preset direction (e.g., the diagonal direction of the door) to the retraction position, and the annular self-locking seal ring 210 retracts inward under the action of its own elastic restoring force.

[0081] In this embodiment, the four-point symmetrical layout ensures that the annular self-locking sealing ring 210 is subjected to balanced force, which can ensure that the sealing pressure is consistent throughout the circumference and avoid unilateral over-expansion leading to tearing or local sealing failure.

[0082] Example 4

[0083] like Figures 2-7 As shown, in this embodiment, the first drive mechanism includes a screw 230, a nut 240, a support wheel shaft 250, a connecting rod push arm 260, and a motor 270.

[0084] The screw 230 is rotatably connected to the door 120. Two nuts 240 are provided, both of which are sleeved on the screw 230 and form a threaded engagement with the screw 230. When the screw 230 rotates, the two nuts 240 move in opposite directions.

[0085] The expansion wheel shaft 250 corresponds one-to-one with the expansion wheel 220, and the expansion wheel shaft 250 is movably connected to the door 120. Specifically, the door 120 is provided with a guide rail 130, which is set along a preset direction (e.g., the diagonal direction of the door 120) and fixedly connected to the door 120. The guide rail 130 has a guide limiting groove 131, one end of the expansion wheel shaft 250 is inserted into the guide limiting groove 131, and the four expansion wheels 220 are respectively sleeved on the corresponding expansion wheel shaft 250.

[0086] There are two sets of linkage push arms 260, with two in each set. In one set, the first ends of the two linkage push arms 260 are rotatably connected to the two expansion wheel shafts 250 located on the first side (e.g., the upper side) of the door 120, and the second ends are hinged to one of the two nuts 240. In the other set, the first ends of the two linkage push arms 260 are rotatably connected to the two expansion wheel shafts 250 located on the second side (opposite to the first side, e.g., the lower side) of the door 120, and the second ends are hinged to the other nut 240.

[0087] The motor 270 is fixedly mounted on the door 120. The power output shaft of the motor 270 is connected to the screw 230 to drive the screw 230 to rotate.

[0088] When the motor 270 rotates forward, it drives the screw 230 to rotate, causing the two nuts 240 to move in opposite directions. This, in turn, drives the four expansion wheel shafts 250 to move outward synchronously through the two sets of connecting rod push arms 260, thus completing the expansion.

[0089] When motor 270 reverses, it drives screw 230 to rotate, causing the two nuts 240 to move towards each other. This, in turn, drives the four expansion wheel shafts 250 to move synchronously inward through two sets of connecting rod push arms 260, achieving retraction. This mechanism is self-locking—the lead angle of screw 230 is less than the friction angle, maintaining the expansion state even in the event of a power outage, preventing accidental unlocking. Simultaneously, the torque of motor 270 is amplified by screw 230, allowing a large expansion force to be achieved with a small-power motor, resulting in energy savings and rapid response. The entire mechanism is fully internal, with no exposed transmission components, providing strong resistance to vandalism.

[0090] Example 5

[0091] like Figures 4-6 As shown, in this embodiment, a rotary drive mechanism is added, which acts on at least one target expansion wheel 220. The rotary drive mechanism is used to drive the expansion wheel 220 to rotate in a preset direction (clockwise or counterclockwise).

[0092] During use (e.g., during door opening and closing), the rotary drive mechanism drives the expansion wheel 220 to rotate around its axis in a preset direction, thereby causing the entire annular self-locking seal ring 210 to rotate, causing the top area, which was originally always facing upwards, to periodically change position, avoiding long-term exposure to rainwater accumulation areas or areas exposed to direct ultraviolet radiation, effectively delaying material aging, hardening, or cracking.

[0093] Example 6

[0094] like Figures 4-6 As shown, in this embodiment, the rotary drive mechanism comprises a first rotary drive unit and a second rotary drive unit, which respectively act on two expansion wheels 220.

[0095] Specifically, when the expansion wheel 220 moves from the expansion position to the retracted position (opening process), the first rotary drive unit is activated, driving its corresponding expansion wheel 220 to rotate in a preset direction, while the second rotary drive unit does not drive its corresponding expansion wheel 220 to rotate; when the expansion wheel 220 moves from the retracted position to the expansion position (closing process), the second rotary drive unit is activated, driving its corresponding expansion wheel 220 to continue rotating in the preset direction, while the first rotary drive unit does not drive its corresponding expansion wheel 220 to rotate.

[0096] In this embodiment, the first and second rotary drive units work alternately to ensure that the sealing ring rotates cumulatively in the same direction regardless of whether the door is opened or closed, avoiding wear caused by back-and-forth oscillation. This unidirectional cumulative rotation mechanism is key to achieving uniform aging protection.

[0097] Example 7

[0098] like Figures 4-6 As shown, in this embodiment, the first rotary drive unit and the second rotary drive unit have the same structure, which includes a rack 310, a gear 320 and a one-way transmission component 330.

[0099] The rack 310 is positioned along the direction of movement of the expansion wheel shaft 250 (i.e., the direction of movement of the expansion wheel 220) and is fixedly connected to the door 120. The gear 320 is sleeved on the corresponding expansion wheel shaft 250 and is connected to the expansion wheel shaft 250 via a one-way transmission assembly 330. The one-way transmission assembly 330 can be a ratchet structure or a one-way bearing.

[0100] When the expansion wheel shaft 250 drives the expansion wheel 220 to move, the gear 320 rolls along the rack 310, thereby driving the gear 320 to rotate. If the rotation direction of the gear 320 is a preset direction, the one-way transmission component 330 is activated, transmitting the rotational motion of the gear 320 to the expansion wheel shaft 250, causing it to rotate; if the rotation direction of the gear 320 is the opposite direction (opposite to the preset direction), the one-way transmission component 330 slips, does not transmit torque, and the expansion wheel shaft 250 does not rotate. Therefore, by reasonably arranging the position of the rack and reasonably selecting the direction of action of the one-way transmission component 330, the one-way cumulative rotation logic described in Embodiment Six can be realized, so that during the expansion process, the second rotation drive unit drives its corresponding expansion wheel 220 to rotate, while the first rotation drive unit does not drive its corresponding expansion wheel 220 to rotate; so that during the retraction process, the first rotation drive unit drives its corresponding expansion wheel 220 to rotate, while the second rotation drive unit does not drive its corresponding expansion wheel 220 to rotate. This structure is completely passively driven, has no electronic components, is extremely reliable, and is inexpensive.

[0101] Example 8

[0102] In this embodiment, the four side walls of the inner door sealing flange 121 and the box body sealing flange 111 are all designed as outwardly convex arcs, that is, arcs that convex toward the center of the box door 120.

[0103] Compared to traditional straight sidewalls, the convex arc-shaped structure, when in contact with the annular self-locking seal 210, will compress and deform the annular self-locking seal 210, further improving the sealing fit and thus further enhancing the sealing and locking effects.

[0104] Example 9

[0105] like Figure 9 As shown, in this embodiment, an authentication module 410 and a control module 420 are also included.

[0106] The identity verification module 410 includes a feature reader 411 and an identity comparison controller 412 electrically connected to the feature reader 411. The feature reader 411 is used to collect the unique features of the identity recognition carrier. The identity recognition carrier can be a biometric carrier or a physical identification carrier. The biometric carrier can be a fingerprint or a face. The physical identification carrier can be an identification card. The identification card can be a physical card (e.g., an ID card or an IC card) or a virtual card set in a mobile terminal. The mobile terminal can be a smartphone, a tablet computer, etc.

[0107] When the biometric carrier is a face, the feature reader 411 is a face recognition camera; when the biometric carrier is a fingerprint, the feature reader 411 is a fingerprint reader; when the physical identification carrier is an identification card, the feature reader 411 is a card reader.

[0108] The identity comparison controller 412 is used to match the collected unique features with the preset identity template and output the identity verification result.

[0109] The control module 420 is electrically connected to the authentication module 410 and the motor 270. The control module 420 is used to control the start and stop of the motor 270 according to the authentication result, so as to realize the opening and closing of the door.

[0110] During operation, the feature reader 411 automatically collects facial, fingerprint, or identification card information, which is then compared with a pre-stored template by the identity comparison controller 412. Upon successful verification, the control module 420 sends an unlock command to the motor 270; otherwise, operation is refused. The entire process requires no key or password, eliminating the risk of duplication and ensuring higher security.

[0111] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0112] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A safe, multi-functional electricity metering box, characterized in that, include: A housing (110), with a door (120) hinged to one side of the housing (110), an inner door sealing flange (121) provided on the inner side of the door (120), and a corresponding housing sealing flange (111) provided on the housing (110); and The sealing assembly includes an expansion mechanism disposed on the door (120) and an annular self-locking sealing ring (210). The annular self-locking sealing ring (210) is sleeved on the expansion mechanism. The annular self-locking sealing ring (210) has an expanded state in which its outer side is tightly fitted with the inner door sealing flange (121) and the box sealing flange (111), and a retracted state in which its outer side is separated from the inner door sealing flange (121) and the box sealing flange (111). The expansion mechanism is configured as follows: When sealing and locking are required, the annular self-locking sealing ring (210) is placed in the expanded state; When it is necessary to release the seal and lock, the annular self-locking sealing ring (210) is placed in the retracted state; The outer side of the annular self-locking sealing ring (210) is provided with a fitting sealing groove (211) that is compatible with the inner door sealing flange (121) and the box sealing flange (111). The expansion mechanism includes: An expansion wheel (220) is provided, the outer circumferential wall of which has an annular limiting groove (221) that cooperates with the annular self-locking seal ring (210). Four expansion wheels (220) are provided, and the annular self-locking seal ring (210) is sleeved on each of the four expansion wheels (220). The four expansion wheels (220) are respectively located at the four corners of the door (120) and are movably connected to the door (120). Each expansion wheel (220) has an expansion position that allows the annular self-locking seal ring (210) to be in the expansion state and a retraction position that allows the annular self-locking seal ring (210) to be in the retracted state; and A first drive mechanism is used to drive the expansion wheel (220) to switch between the expansion position and the retracted position.

2. The safety-type multifunctional energy metering box according to claim 1, characterized in that, The first driving mechanism includes: Screw (230), the screw (230) is rotatably connected to the box door (120); There are two nuts (240), both of which are sleeved on the screw (230) and form a threaded engagement with the screw (230). When the screw (230) rotates, the two nuts (240) move in opposite directions. The expansion wheel shaft (250) corresponds one-to-one with the expansion wheel (220). The expansion wheel shaft (250) is movably connected to the box door (120). The four expansion wheels (220) are respectively sleeved on the corresponding expansion wheel shaft (250). The connecting rod push arm (260) is provided in two sets, with two in each set. In one set, the first ends of the two connecting rod push arms (260) are rotatably connected to the two expansion wheel shafts (250) located on the first side of the door (120), and the second ends are hinged to one of the two nuts (240). In the other set, the first ends of the two connecting rod push arms (260) are rotatably connected to the two expansion wheel shafts (250) located on the second side of the door (120), and the second ends are hinged to the other nut. The motor (270) is mounted on the door (120), and the power output shaft of the motor (270) is connected to the screw (230) to drive the screw (230) to rotate.

3. The safety-type multi-functional energy metering box according to claim 2, characterized in that, It also includes a rotary drive mechanism for driving the target expansion wheel (220) to rotate along its axial direction.

4. The safety-type multifunctional energy metering box according to claim 3, characterized in that, The rotary drive mechanism includes a first rotary drive unit and a second rotary drive unit. The first rotary drive unit and the second rotary drive unit are respectively used to drive the corresponding target expansion wheel (220) to rotate in a preset direction, and the first rotary drive unit and the second rotary drive unit are configured as follows: When the first driving mechanism drives the expansion wheel (220) to move from the expansion position to the retraction position, the first rotary driving unit drives the corresponding target expansion wheel (220) to rotate in a preset direction, while the second rotary driving unit will not drive the corresponding target expansion wheel (220) to rotate. When the first driving mechanism drives the expansion wheel (220) to move from the retracted position to the expansion position, the second rotary driving unit drives the corresponding target expansion wheel (220) to rotate in a preset direction, while the first rotary driving unit will not drive the corresponding target expansion wheel (220) to rotate.

5. The safety-type multifunctional energy metering box according to claim 4, characterized in that, The first rotary drive unit and the second rotary drive unit have the same structure, which includes: A rack (310) is provided along the direction of movement of the expansion wheel shaft (250), and the rack (310) is fixedly connected to the door (120); and Gear (320), which is coaxially sleeved on the corresponding expansion wheel shaft (250) and is connected to the expansion wheel shaft (250) through a one-way transmission assembly (330).

6. The safety-type multifunctional energy metering box according to any one of claims 1-5, characterized in that, The four side walls of the inner door sealing flange (121) and the box sealing flange (111) are convex arcs.

7. The safety-type multifunctional energy metering box according to claim 2, 3, 4 or 5, characterized in that, Also includes: The identity verification module (410) includes a feature reader (411) and an identity comparison controller (412) electrically connected to the feature reader (411). The feature reader (411) is used to collect the unique features of the identity recognition carrier, which is a biometric carrier or a physical identification carrier. The identity comparison controller (412) is used to match the collected unique features with a preset identity template and output the identity verification result. A control module (420) electrically connected to the authentication module (410) and the motor (270) is used to control the start and stop of the motor (270) according to the authentication result.

8. The safety-type multifunctional energy metering box according to claim 7, characterized in that, The biometric carrier is a face or fingerprint, and the physical identification carrier is an identification card.

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