Intelligent electric energy meter capable of preventing circuit from falling off

Abstract

The invention, which belongs to the field of the electric energy meter, discloses a line anti-drop intelligent electric energy meter comprising an electric energy meter body, a connecting groove arranged at one side of the electric energy meter body in a path array and a cable body inserted in the connecting groove, the surface of the electric energy meter body is provided with a screwing mechanism, and the surface of the cable body is provided with a limiting mechanism. A protection mechanism is mounted on one side of the electric energy meter body; through cooperative use of the devices and mutual adsorption of the strong magnets and the magnet blocks, the limiting plate and the cable body are tightly attached, the friction force between the cable body and the limiting plate is increased, and through mutual cooperation of the arc-shaped seat and the limiting plate, when the cable body vibrates or retreats, the cable body is prevented from being damaged on the basis of the friction force. The cable body pushes the limiting plate to move, the limiting plate slides on the arc-shaped seat, through the inner arc surface of the arc-shaped seat, the extrusion force of the arc-shaped plate and the limiting plate is increased in the moving process of the cable body, and the effect that the cable is pulled more and more tightly is achieved.

Description

Technical Field

[0001] This invention relates to the field of electricity meter technology, specifically a line-protected smart electricity meter. Background Technology

[0002] A smart meter is composed of a measurement unit, a data processing unit, and a communication unit. It has functions such as energy metering, data processing, real-time monitoring, automatic control, and information interaction. Smart meters can be divided into single-phase meters and three-phase meters according to user type, and into local meters and remote meters according to payment method. A single-phase meter, as the name suggests, is an energy meter used by ordinary users to measure 220V electricity. A three-phase meter is an energy meter used in industry to measure 380V electricity. A local meter is an energy meter that can be paid for by IC card at the user's location. A remote meter is generally not installed at the user's location, and the user needs to go to the power supply bureau to pay.

[0003] An investigation revealed that a Chinese invention patent discloses a line-protected smart energy meter (publication number: CN118858720B), comprising an energy meter body. The energy meter body includes a metering simulation sampling module, which is connected to an energy meter CPU and an energy metering module. The energy meter CPU is connected to an energy metering conversion module and a monitoring alarm module. The energy metering conversion module is connected to the metering simulation sampling module. A terminal block and an expansion plate are provided on the side of the energy meter body. A cable body is wound around the outside of the expansion plate and the terminal block. A wire-clamping mechanism is provided on the outside of the terminal block. A first anti-reverse block is provided at the upper end of the expansion plate, and a second anti-reverse block is provided on the side of the terminal block. Pulling the cable body causes the terminal block to move downward. The wire-clamping mechanism prevents the cable body from falling off. The expansion plate expands outward, making the cable body more tightly wound on the expansion plate. The first and second anti-reverse blocks abut against each other, preventing the terminal block from rotating in reverse, thus making it difficult for the cable body to fall off the energy meter body.

[0004] Although the aforementioned patent describes a method where the conductive wire of the cable body is wound around the outside of an expansion plate, and the insulating part is wound around the outside of a terminal block, pulling the cable body causes it to rotate and move downwards, triggering a cable clamping mechanism to prevent the cable body wound around the expansion plate from falling off. As the terminal block continues to move downwards, the expansion plate is squeezed outwards by the terminal block, making the cable body wound around the outside of the expansion plate even tighter. However, during the use of a smart meter, if the cable body vibrates or comes loose during use, the cable, which was originally tightly wound around the expansion plate, may pull the expansion plate and move. This could cause the applied force to exceed the cable body's bearing capacity, resulting in the cable body breaking on the expansion plate surface, causing a short circuit in the smart meter and affecting its operation.

[0005] Therefore, the present invention provides a line-protected smart energy meter to solve the above problems. Summary of the Invention

[0006] (1) Technical problems solved

[0007] This invention provides a line-protected smart energy meter, which aims to solve the problems mentioned in the background art.

[0008] (2) Technical solution

[0009] To achieve the above objectives, the present invention provides the following technical solution: a line-protected smart energy meter, comprising an energy meter body, a connecting slot arranged in a path array on one side of the energy meter body, and a cable body inserted into the connecting slot. A tightening mechanism is installed on the surface of the energy meter body, a limiting mechanism is installed on the surface of the cable body, and a protective mechanism is installed on one side of the energy meter body.

[0010] The limiting mechanism includes an arc-shaped plate that fits against the surface of the cable body. A strong magnet is fixedly connected to the lower surface of the arc-shaped plate in a rectangular array. A magnet block is provided on the lower surface of the strong magnet. A limiting plate that fits against the cable body is fixedly connected to the surface of every two corresponding magnet blocks. An arc-shaped seat is slidably connected to the surface of the limiting plate. A mounting plate corresponding to the limiting plate is fixedly connected to the surface of several arc-shaped seats. A retaining spring is fixedly connected to both sides of the upper surface of the arc-shaped plate.

[0011] As a preferred technical solution of this application, the limiting mechanism further includes an arc-shaped support plate that fits against the cable body. Connecting blocks are fixedly connected to both sides of the upper surface of the arc-shaped support plate. A fixing plate that is fixedly connected to the mounting plate is slidably connected to the surface of the connecting blocks. The clamping spring is fixedly connected to the fixing plate. A protective plate corresponding to the cable body is fixedly connected to the opposite sides of the two fixing plates. A laser displacement sensor is connected inside the protective plate.

[0012] As a preferred technical solution of this application, the limiting mechanism further includes a bearing plate that is fixedly connected to the upper surface of the two fixed plates and fixedly connected to the energy meter body by bolts. Pull ropes are fixedly connected to both sides of the upper surface of the arc-shaped support plate, and one end of the two pull ropes is fixedly connected to a movable plate that is slidably connected to the energy meter body.

[0013] As a preferred technical solution of this application, the tightening mechanism includes a mounting groove formed on one side of the upper surface of the energy meter body. A magnetic sheet is fixedly connected to one side wall of the mounting groove in a path array. A sealing plate that is hinged to the mounting groove is magnetically attracted to the surface of several magnetic sheets. A pressure plate corresponding to the moving plate is fixedly connected to the surface of the sealing plate. A fixing groove that communicates with the connecting groove is formed in a path array inside the mounting groove.

[0014] As a preferred technical solution of this application, the tightening mechanism further includes a threaded cylinder threadedly connected to the inside of the fixing groove. A limiting ring is fixedly connected to the surface of the threaded cylinder and the inside of the connecting groove. A memory spring corresponding to the cable body is fixedly connected to the lower surface of the limiting ring. The cable body is wound around the surface of the threaded cylinder. The limiting ring and the memory spring are used to limit the cable body.

[0015] As a preferred technical solution of this application, the tightening mechanism further includes a rotating rod slidably connected inside the threaded cylinder. One end of the rotating rod is fixedly connected to a snap-fit ​​block slidably connected inside the threaded cylinder. The surface of the snap-fit ​​block is fixedly connected to a sliding seat corresponding to the threaded cylinder. The inner wall of the threaded cylinder is provided with a sliding groove that slidably connects to the sliding seat.

[0016] As a preferred technical solution of this application, the protective mechanism includes rotating plates rotatably connected to both sides of the electricity meter body via rotating shafts, a protective box is fixedly connected to the opposite sides of the two rotating plates, electromagnets corresponding to the electricity meter body are fixedly connected to both inner walls of the protective box, heat-absorbing plates corresponding to the electromagnets are fixedly connected to both sides of the protective box in a path array, and a heat dissipation plate is fixedly connected to one side of several heat-absorbing plates.

[0017] As a preferred technical solution of this application, the protective mechanism further includes a warning light fixedly connected to one side of the upper surface of the energy meter body and corresponding to the laser displacement sensor, a through groove corresponding to the cable body is opened on one side of the protective box in a path array, a heat dissipation groove corresponding to the carrier plate is opened on the surface of the protective box, and the electromagnet corresponds to the sealing plate.

[0018] As a preferred technical solution of this application, a guide groove corresponding to the mounting groove is formed in a path array at one edge of the upper surface of the electricity meter body. The guide groove corresponds to the pull rope, the bearing plate corresponds to the guide groove, and a groove corresponding to the moving plate is formed in a path array on one side wall of the mounting groove.

[0019] (3) Beneficial effects

[0020] 1. Based on the setting of the limiting mechanism and other structures, the cable body is inserted into the connecting groove and the inside of the arc plate. Through the mutual attraction of strong magnets and magnetic blocks, the limiting plate and the cable body are tightly attached, increasing the friction between the cable body and the limiting plate. Through the cooperation between the arc seat and the limiting plate, when the cable body vibrates or retracts, the friction causes the cable body to push the limiting plate to move, allowing the limiting plate to slide on the arc seat. Through the inner arc surface of the arc seat, the squeezing force between the arc plate and the limiting plate increases during the movement of the cable body, thereby increasing the friction between the limiting plate and the inner arc surface of the arc seat. This achieves the effect of tightening as it is pulled, thus preventing the cable body from moving and the threaded cylinder from tightening, which could lead to the cable body breaking and causing a short circuit in the energy meter body, affecting the use of the smart energy meter.

[0021] 2. Based on the cooperation of the mounting groove, threaded cylinder, and memory spring, during the operation of the electricity meter body and cable body, the load increases and heat is generated inside the mounting groove and connecting groove, causing the memory spring to deform and reset. This causes the memory spring and the limiting ring to press against the cable body, providing greater clamping force to the cable body and compensating for the slight relaxation caused by the thermal expansion of the threaded cylinder. This prevents the threaded cylinder from thermally expanding due to increased load, which could cause a gap between the cable body and the threaded cylinder and lead to the cable body falling off.

[0022] 3. Through the cooperation of the rotating rod, sliding seat, and threaded cylinder, the threaded cylinder is inserted into the fixed groove during installation. After the cable body is fixed, the rotating rod and sliding seat are removed, allowing the threaded cylinder to be installed in the fixed groove. The sealing plate seals the installation groove through the hinge, protecting the threaded cylinder and preventing external personnel from easily replacing the cable body with screwdrivers or other devices, making the device safer to use.

[0023] 4. Based on the cooperation of the protective mechanism and pull rope, after the cable body is installed, the sealing plate is inserted into the installation groove, which energizes the laser displacement sensor, warning light, and electromagnet. The electromagnet attracts the protective box to the energy meter body, protecting the limit mechanism and other components. The heat generated by the electromagnet is dissipated through the heat dissipation plate and heat absorption plate. With the pull rope, the sealing plate moves, causing the lower pressure plate to squeeze the moving plate. The pull rope pulls the arc-shaped support plate to support the cable body, while the protective plate protects the cable body. This makes the cable body safer to use and avoids the cable body breaking due to its own weight during use. Attached Figure Description

[0024] Figure 1This is a schematic diagram of a line-protected smart energy meter.

[0025] Figure 2 A schematic diagram of a line-protected smart energy meter from a second-view perspective;

[0026] Figure 3 A schematic diagram of the second form of a line-protected smart energy meter;

[0027] Figure 4 A schematic diagram of the third form of a line-protected smart energy meter;

[0028] Figure 5 A schematic diagram of the limit mechanism in a line-protected smart energy meter;

[0029] Figure 6 This is a schematic diagram of the structure of a threaded cylinder, cable body, and arc plate in a line-protected smart energy meter;

[0030] Figure 7 This is a schematic diagram of the structure of a line-protected smart energy meter, including the meter body, mounting groove, and support plate.

[0031] Figure 8 This is a schematic diagram of the protective box, sealing plate, and electromagnet in a line-protected smart energy meter.

[0032] Figure 9 This is a schematic diagram of the arc-shaped plate, limit plate, and mounting plate in a line-protected smart energy meter.

[0033] In the picture:

[0034] 1. Electricity meter body; 2. Connecting slot; 3. Cable body;

[0035] 4. Tightening mechanism; 401. Mounting groove; 402. Magnet piece; 403. Sealing plate; 404. Lower pressure plate; 405. Fixing groove; 406. Threaded cylinder; 407. Limiting ring; 408. Memory spring; 409. Rotating rod; 410. Snap-fit ​​block; 411. Sliding seat;

[0036] 5. Limiting mechanism; 501. Arc-shaped plate; 502. Strong magnet; 503. Magnet block; 504. Limiting plate; 505. Mounting plate; 506. Arc-shaped seat; 507. Arc-shaped support plate; 508. Connecting block; 509. Fixing plate; 510. Protective plate; 511. Laser displacement sensor; 512. Bearing plate; 513. Pull rope; 514. Moving plate; 515. Clamping spring;

[0037] 6. Protective mechanism; 601. Rotating plate; 602. Protective box; 603. Electromagnet; 604. Heat absorption plate; 605. Warning light; 606. Through groove; 7. Guide groove. Detailed Implementation

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] This invention provides a line-protected smart energy meter, referring to... Figures 1-9 As shown, three embodiments are provided:

[0040] Example 1:

[0041] The line-protected smart energy meter includes an energy meter body 1, a connecting slot 2 arranged in a path array on one side of the energy meter body 1, and a cable body 3 inserted into the connecting slot 2. A tightening mechanism 4 is installed on the surface of the energy meter body 1, a limiting mechanism 5 is installed on the surface of the cable body 3, and a protective mechanism 6 is installed on one side of the energy meter body 1.

[0042] Among them, the connecting groove 2 is used to connect the cable body 3 to the energy meter body 1;

[0043] Among them, the cable body 3 is used to supply power to the electricity meter body 1;

[0044] The limiting mechanism 5 includes an arc-shaped plate 501 that fits against the surface of the cable body 3. A strong magnet 502 is fixedly connected to the lower surface of the arc-shaped plate 501 in a rectangular array. A magnet block 503 is provided on the lower surface of the strong magnet 502. A limiting plate 504 that fits against the cable body 3 is fixedly connected to the surface of every two corresponding magnet blocks 503. An arc-shaped seat 506 is slidably connected to the surface of the limiting plate 504. A mounting plate 505 corresponding to the limiting plate 504 is fixedly connected to the surface of several arc-shaped seats 506. A clamping spring 515 is fixedly connected to both sides of the upper surface of the arc-shaped plate 501.

[0045] Among them, the arc-shaped plate 501 is used to protect the top of the cable body 3 and to attract the limiting plate 504.

[0046] Among them, the strong magnet 502 is used to attract the magnet block 503;

[0047] Among them, the magnet block 503 is used to pull the limiting plate 504 to fit more tightly against the surface of the cable body 3;

[0048] The arc-shaped seat 506 and the mounting plate 505 are used to support and limit the limiting plate 504.

[0049] Among them, the clamping spring 515 is used to adjust the position of the arc plate 501. The clamping spring 515 has a strong elastic force to prevent the arc plate 501 from moving when the limiting plate 504 limits the cable body 3, thus preventing the limiting plate 504 from being unable to limit the cable body 3.

[0050] Specifically, when the cable body 3 is inserted into the connecting slot 2, the elastic force of the spring 515 prevents the arc plate 501 from limiting the cable body 3, and the limiting plate 504 guides the cable body 3, making the cable body 3 more stable during insertion. After the cable body 3 is connected to the energy meter body 1, the elastic force of the spring 515 causes the arc plate 501 to fit against the cable body 3, limiting the cable body 3. The strong magnet 502 attracts the magnet block 503, causing the magnet block 503 to drive the limiting plate 504 to fit tightly against the cable body 3. This not only supports and limits the cable body 3, but also increases the friction between the limiting plate 504 and the cable body 3.

[0051] When the cable body 3 vibrates or retracts, the limiting plate 504 moves due to the friction between it and the cable body 3. This causes the cable body 3 to slide the limiting plate 504 on the surface of the arc-shaped seat 506. The inner arc surface of the arc-shaped seat 506 limits the limiting plate 504, increasing the squeezing force between the arc-shaped plate 501 and the limiting plate 504. This increases the friction between the limiting plate 504 and the inner arc surface of the arc-shaped seat 506, achieving a tightening effect. This prevents the cable body 3 from moving and the threaded cylinder 406 from tightening, which could lead to the cable body 3 breaking and causing a short circuit in the energy meter body 1, thus affecting the use of the smart energy meter.

[0052] In Example 2, based on Example 1, the limiting mechanism 5 further includes a bearing plate 512 that is fixedly connected to the upper surfaces of the two fixed plates 509 and fixedly connected to the energy meter body 1 by bolts. Pull ropes 513 are fixedly connected to both sides of the upper surface of the arc-shaped support plate 507, and a movable plate 514 that is slidably connected to the energy meter body 1 is fixedly connected to one end of the two pull ropes 513.

[0053] Among them, the bearing plate 512 is used to support the fixing plate 509;

[0054] Among them, the pull rope 513 is used to drive the moving plate 514 to slide inside the electricity meter body 1;

[0055] The tightening mechanism 4 includes a mounting groove 401 opened on one side of the upper surface of the energy meter body 1. A magnetic piece 402 is fixedly connected to one side wall of the mounting groove 401 in a path array. The surfaces of several magnetic pieces 402 are magnetically attracted to a sealing plate 403 that is hinged to the mounting groove 401. A lower pressure plate 404 corresponding to the moving plate 514 is fixedly connected to the surface of the sealing plate 403. The interior of the mounting groove 401 is provided with a fixed groove 405 that communicates with the connecting groove 2 in a path array.

[0056] The mounting slot 401 is used to set the fixing slot 405;

[0057] Among them, the magnetic sheet 402 is used to attract the lower pressure plate 404;

[0058] The sealing plate 403 is used to seal the mounting groove 401;

[0059] Among them, the lower pressure plate 404 is used to drive the moving plate 514 to move;

[0060] Specifically, after the cable body 3 is installed through the threaded cylinder 406, the sealing plate 403 is rotated into the mounting groove 401 through the hinge to seal the mounting groove 401. At the same time, the lower pressure plate 404 is inserted into the mounting groove 401 and is attracted by the magnet 402 to limit the sealing plate 403, thereby protecting the mounting groove 401.

[0061] The tightening mechanism 4 also includes a threaded cylinder 406 threadedly connected to the inside of the fixing groove 405. A limiting ring 407 is fixedly connected to the surface of the threaded cylinder 406 and the inside of the connecting groove 2. A memory spring 408 corresponding to the cable body 3 is fixedly connected to the lower surface of the limiting ring 407. The cable body 3 is wound around the surface of the threaded cylinder 406. The limiting ring 407 and the memory spring 408 are used to limit the cable body 3.

[0062] Among them, the threaded cylinder 406 is used to insert into the inside of the fixing groove 405 to limit the cable body 3;

[0063] Among them, the limiting ring 407 is used to limit the memory spring 408;

[0064] Among them, the memory spring 408 is used to compress the cable body 3;

[0065] Specifically, the cable body 3 is inserted into the inside of the connecting groove 2, so that the cable body 3 is wound around the surface of the threaded cylinder 406. The threaded cylinder 406 is threaded into the inside of the fixing groove 405, so that the threaded cylinder 406 limits the cable body 3. Furthermore, through the cooperation of the memory spring 408 and the limiting ring 407, the cable body 3 is further tightened.

[0066] During the operation of the electricity meter body 1 and the cable body 3, the load increases, and heat is generated inside the mounting groove 401 and the connecting groove 2, causing the memory spring 408 to deform and reset. This causes the memory spring 408 and the limiting ring 407 to press against the cable body 3, providing greater clamping force to the cable body 3 and compensating for the slight relaxation caused by the thermal expansion of the threaded cylinder 406. This prevents the threaded cylinder 406 from thermally expanding due to the increased load, which could cause a gap between the cable body 3 and the threaded cylinder 406 and lead to the cable body 3 falling off. This makes the cable body 3 more stable during use.

[0067] The tightening mechanism 4 also includes a rotating rod 409 that is slidably connected inside the threaded cylinder 406. One end of the rotating rod 409 is fixedly connected to a snap block 410 that is slidably connected inside the threaded cylinder 406. The surface of the snap block 410 is fixedly connected to a sliding seat 411 corresponding to the threaded cylinder 406. The inner wall of the threaded cylinder 406 is provided with a sliding groove that is slidably connected to the sliding seat 411.

[0068] Among them, the rotating rod 409 is used to drive the threaded cylinder 406 to rotate;

[0069] The snap-fit ​​block 410 and the sliding seat 411 are used to snap the rotating rod 409 into the inside of the threaded cylinder 406;

[0070] Specifically, when installing the threaded cylinder 406, the rotating rod 409 is inserted into the inside of the threaded cylinder 406, so that the snap-fit ​​block 410 enters simultaneously, and the sliding seat 411 is slidably connected to the inside of the sliding groove, limiting the sliding seat 411, so that the sliding seat 411 and the rotating rod 409 can drive the threaded cylinder 406 to rotate, so that the threaded cylinder 406 is threadedly connected to the inside of the fixed groove 405.

[0071] By using the sliding groove and sliding seat 411 in cooperation, after the threaded cylinder 406 is installed, the rotating rod 409 and sliding seat 411 can be removed, thereby preventing external personnel from easily replacing the cable body 3 with screwdrivers or other devices, making the device safer to use.

[0072] In Example 3, based on Examples 1 and 2, the limiting mechanism 5 further includes an arc-shaped support plate 507 that fits against the cable body 3. Connecting blocks 508 are fixedly connected to both sides of the upper surface of the arc-shaped support plate 507. A fixing plate 509 that is fixedly connected to the mounting plate 505 is slidably connected to the surface of the connecting block 508. A retaining spring 515 is fixedly connected to the fixing plate 509. A protective plate 510 corresponding to the cable body 3 is fixedly connected to the opposite sides of the two fixing plates 509. A laser displacement sensor 511 is connected inside the protective plate 510.

[0073] Among them, the arc-shaped support plate 507 is used to support the cable body 3;

[0074] Among them, the connecting block 508 is used to drive the arc-shaped support plate 507 to slide;

[0075] Among them, the fixing plate 509 is used to support the arc-shaped support plate 507 and the protective plate 510;

[0076] Among them, the protective plate 510 is used to limit the arc-shaped support plate 507;

[0077] Among them, the laser displacement sensor 511 is used to monitor the movement of the cable body 3;

[0078] Specifically, during the movement of the lower pressure plate 404, the moving plate 514 is pushed to move, causing the moving plate 514 to drive the pull rope 513 to move synchronously. This causes the pull rope 513 to pull the arc-shaped support plate 507 upward, bringing the arc-shaped support plate 507 closer to the protective plate 510. Based on the arc-shaped support plate 507 and the protective plate 510, the cable body 3 is limited. Thus, while the arc-shaped support plate 507 supports the cable body 3, the protective plate 510 protects the cable body 3, making the cable body 3 safer during use and preventing the cable body 3 from detaching from the connecting groove 2 due to its own weight.

[0079] The upper surface of the electricity meter body 1 has a guide groove 7 in a path array at one edge, which corresponds to the mounting groove 401. The guide groove 7 corresponds to the pull rope 513. The bearing plate 512 corresponds to the guide groove 7. The side wall of the mounting groove 401 has a groove in a path array, which corresponds to the moving plate 514.

[0080] Among them, the guide groove 7 is used to guide and limit the pull rope 513;

[0081] The groove is used to guide the sliding of the movable plate 514 inside the mounting groove 401.

[0082] The protective mechanism 6 includes rotating plates 601 rotatably connected to both sides of the energy meter body 1 via a rotating shaft. A protective box 602 is fixedly connected to the opposite sides of the two rotating plates 601. Electromagnets 603 corresponding to the energy meter body 1 are fixedly connected to both inner walls of the protective box 602. Heat-absorbing plates 604 corresponding to the electromagnets 603 are fixedly connected to both sides of the protective box 602 in a path array. A heat dissipation plate is fixedly connected to one side of several heat-absorbing plates 604.

[0083] Among them, the rotating plate 601 is used to drive the protective box 602 to rotate on the surface of the electricity meter body 1;

[0084] The protective box 602 is used to protect the components of the limiting mechanism 5 and the tightening mechanism 4.

[0085] Among them, electromagnet 603 is used to limit the movement of protective box 602;

[0086] The heat-absorbing plate 604 and the heat-dissipating plate are used to dissipate the heat generated by the electromagnet 603.

[0087] The protective mechanism 6 also includes a warning light 605 fixedly connected to one side of the upper surface of the energy meter body 1 and corresponding to the laser displacement sensor 511. One side of the protective box 602 is provided with a through groove 606 corresponding to the cable body 3 in a path array. The surface of the protective box 602 is provided with a heat dissipation groove corresponding to the support plate 512. The electromagnet 603 corresponds to the sealing plate 403.

[0088] Among them, the warning light 605 is used for warning and alerting;

[0089] The through groove 606 is used to prevent the cable body 3 from causing movement obstruction to the protective box 602.

[0090] The heat dissipation groove is used to prevent heat from accumulating inside the protective box 602 and affecting other components.

[0091] Specifically, after the sealing plate 403 seals the mounting groove 401, the laser displacement sensor 511, the warning light 605 and the electromagnet 603 are energized, causing the electromagnet 603 to generate magnetic force. Based on the magnetic force of the electromagnet 603, the protective box 602 is attracted to the surface of the energy meter body 1 to protect the limiting mechanism 5 and the tightening mechanism 4.

[0092] The movement of the cable body 3 is monitored in real time by the laser displacement sensor 511. When the moving distance and speed of the cable body 3 exceed the threshold, the warning light 605 is activated and flashes. This not only reminds the staff that the smart energy meter is abnormal, but also alerts external personnel to prevent them from pulling on the cable body 3 and affecting the use of the smart energy meter.

[0093] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A circuit-protected smart energy meter, characterized in that: The device includes an electricity meter body (1), a connecting slot (2) arranged in a path array on one side of the electricity meter body (1), and a cable body (3) inserted into the connecting slot (2). A tightening mechanism (4) is installed on the surface of the electricity meter body (1), a limiting mechanism (5) is installed on the surface of the cable body (3), and a protective mechanism (6) is installed on one side of the electricity meter body (1). The limiting mechanism (5) includes an arc-shaped plate (501) that fits against the surface of the cable body (3). A strong magnet (502) is fixedly connected to the lower surface of the arc-shaped plate (501) in a rectangular array. A magnet block (503) is provided on the lower surface of the strong magnet (502). A limiting plate (504) that fits against the cable body (3) is fixedly connected to the surface of each pair of corresponding magnet blocks (503). An arc-shaped seat (506) is slidably connected to the surface of the limiting plate (504). A mounting plate (505) corresponding to the limiting plate (504) is fixedly connected to the surface of several arc-shaped seats (506). A clamping spring (515) is fixedly connected to both sides of the upper surface of the arc-shaped plate (501).

2. The line-protected smart energy meter according to claim 1, characterized in that: The limiting mechanism (5) also includes an arc-shaped support plate (507) that fits against the cable body (3). Connecting blocks (508) are fixedly connected to both sides of the upper surface of the arc-shaped support plate (507). A fixing plate (509) that is fixedly connected to the mounting plate (505) is slidably connected to the surface of the connecting block (508). The clamping spring (515) is fixedly connected to the fixing plate (509). A protective plate (510) corresponding to the cable body (3) is fixedly connected to the opposite sides of the two fixing plates (509). A laser displacement sensor (511) is connected inside the protective plate (510).

3. A line-protected smart energy meter according to claim 2, characterized in that: The limiting mechanism (5) also includes a bearing plate (512) that is fixedly connected to the upper surfaces of the two fixed plates (509) and fixedly connected to the electricity meter body (1) by bolts. Pull ropes (513) are fixedly connected to both sides of the upper surface of the arc-shaped support plate (507). One end of the two pull ropes (513) is fixedly connected to a movable plate (514) that is slidably connected to the electricity meter body (1).

4. A line-protected smart energy meter according to claim 3, characterized in that: The tightening mechanism (4) includes a mounting groove (401) on one side of the upper surface of the energy meter body (1). A magnetic piece (402) is fixedly connected to one side wall of the mounting groove (401) in a path array. A sealing plate (403) that is hinged to the mounting groove (401) is magnetically attracted to the surface of several magnetic pieces (402). A pressure plate (404) corresponding to the moving plate (514) is fixedly connected to the surface of the sealing plate (403). A fixing groove (405) that communicates with the connecting groove (2) is opened in a path array inside the mounting groove (401).

5. A line-protected smart energy meter according to claim 4, characterized in that: The tightening mechanism (4) further includes a threaded cylinder (406) threaded into the fixed groove (405). A limiting ring (407) is fixedly connected to the surface of the threaded cylinder (406) and the inside of the connecting groove (2). A memory spring (408) corresponding to the cable body (3) is fixedly connected to the lower surface of the limiting ring (407). The cable body (3) is wound around the surface of the threaded cylinder (406). The limiting ring (407) and the memory spring (408) are used to limit the cable body (3).

6. A line-protected smart energy meter according to claim 5, characterized in that: The tightening mechanism (4) further includes a rotating rod (409) slidably connected inside the threaded cylinder (406). One end of the rotating rod (409) is fixedly connected to a snap-fit ​​block (410) slidably connected inside the threaded cylinder (406). The surface of the snap-fit ​​block (410) is fixedly connected to a sliding seat (411) corresponding to the threaded cylinder (406). The inner wall of the threaded cylinder (406) is provided with a sliding groove that slidably connects to the sliding seat (411).

7. A line-protected smart energy meter according to claim 4, characterized in that: The protective mechanism (6) includes rotating plates (601) rotatably connected to both sides of the energy meter body (1) via a rotating shaft. A protective box (602) is fixedly connected to the opposite sides of the two rotating plates (601). Electromagnets (603) corresponding to the energy meter body (1) are fixedly connected to both inner walls of the protective box (602). Heat-absorbing plates (604) corresponding to the electromagnets (603) are fixedly connected to both sides of the protective box (602) in a path array. A heat dissipation plate is fixedly connected to one side of several heat-absorbing plates (604).

8. A line-protected smart energy meter according to claim 7, characterized in that: The protective mechanism (6) also includes a warning light (605) fixedly connected to one side of the upper surface of the energy meter body (1) and corresponding to the laser displacement sensor (511). One side of the protective box (602) is provided with a through groove (606) corresponding to the cable body (3) in a path array. The surface of the protective box (602) is provided with a heat dissipation groove corresponding to the support plate (512). The electromagnet (603) corresponds to the sealing plate (403).

9. A line-protected smart energy meter according to claim 4, characterized in that: The edge of the upper surface of the electricity meter body (1) is provided with guide grooves (7) corresponding to the mounting groove (401) in a path array. The guide grooves (7) correspond to the pull rope (513). The bearing plate (512) corresponds to the guide grooves (7). One side wall of the mounting groove (401) is provided with grooves corresponding to the moving plate (514) in a path array.

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