Intelligent low-voltage metering box

Abstract

The invention relates to an intelligent low-voltage metering box, and relates to the technical field of metering boxes, the intelligent low-voltage metering box comprises a box body, the box body is provided with an installation cavity, and a box door used for blocking the installation cavity is installed on the box body; a limiting through groove is formed in the inner wall, away from the box door, of the box body, a fixing block is arranged in the limiting through groove in a sliding mode, and the fixing block can slide in a reciprocating mode in the direction away from the box door; an arc-shaped notch is formed in the side face, away from the box door, of the fixing block, a flexible fixing rope is detachably installed on the inner wall of the arc-shaped notch, the side face, away from the box door, of the fixing block can slide to the state that the outer side face of the box door is flush with and protrudes out of the outer side face of the box door, and a locking piece for locking the sliding state of the fixing block is arranged in the box body. According to the metering box, when the metering box is installed on a telegraph pole, the fixing blocks are adjusted to be in the state of protruding out of the outer side face of the box door, the arc-shaped notches abut against the peripheral face of the telegraph pole in an attached mode, and then the periphery of the telegraph pole is fixedly sleeved with the fixing blocks through the flexible fixing ropes.

Description

Technical Field

[0001] The present application relates to the technical field of metering boxes, and in particular to an intelligent low-voltage metering box. Background Art

[0002] As the power industry continues to evolve, electricity metering, as a critical link between power supply and consumption, is gaining increasing attention for its accuracy and efficiency. Traditional low-voltage meter boxes primarily perform the basic function of electricity metering. However, with the increasing diversification and complexity of electricity demand and the vigorous advancement of intelligent power grid construction, traditional meter boxes have gradually exposed numerous shortcomings. For example, they struggle to achieve real-time, accurate collection and transmission of energy data, failing to meet the power sector's needs for comprehensive monitoring and analysis of electricity usage information. Their capabilities for fault monitoring and early warning are also limited, making it difficult to detect and address abnormal situations in a timely manner, potentially impacting the reliability and safety of power supply.

[0003] Currently, there is an intelligent low-voltage metering box designed to house single-phase electricity meters. Its structure primarily consists of a box body and a door mounted on the box body, with an observation window. The single-phase electricity meter can be mounted on the inner wall of the box, allowing users to easily view the meter reading inside through the observation window. When installed outdoors, this metering box is typically mounted on a utility pole, maintaining a certain distance from the ground to ensure safety and metering accuracy. This installation method meets the energy metering needs of outdoor single-phase power consumption environments, facilitating management by power companies and monitoring of electricity usage by users.

[0004] However, during actual installation, due to the curved outer perimeter of the utility pole, the meter box is typically secured to the pole using a clamp pre-attached to the outer surface of the box. However, this method of attachment has significant drawbacks: the connection between the clamp and the box is small, resulting in an unstable connection. In complex outdoor environments, such as severe weather like strong winds and heavy rain, or when subjected to external forces, the meter box can easily wobble or even loosen, seriously affecting its installation stability, leaving room for improvement. Summary of the Invention

[0005] The purpose of this application is to provide an intelligent low-voltage metering box to solve the problem of poor stability of the metering box installed on the utility pole in the above-mentioned related art.

[0006] The present application provides an intelligent low-voltage metering box that adopts the following technical solutions: An intelligent low-pressure metering box comprises a box body, an installation cavity is provided on the box body, and a box door for sealing the installation cavity is installed; a limiting groove is provided on the inner wall of the box body away from the box door, a fixed block is slidably arranged in the limiting groove, and the fixed block can slide back and forth in the direction away from the box door; an arc-shaped notch is provided on the side of the fixed block away from the box door, and a flexible fixing rope is detachably installed on the inner wall of the arc-shaped notch, and the side of the fixed block away from the box door can slide to a state flush with and protruding from the outer side of the box door, and a locking member is provided in the box body to lock the sliding state of the fixed block.

[0007] By adopting the above technical solution, during long-distance transportation, the fixing block can be slid to a storage state flush with the outer side of the box door, reducing space occupancy and facilitating fixation to prevent shaking. When the meter box is installed on a utility pole, the fixing block is slid and adjusted to an application state protruding from the outer side of the box door, so that the arc-shaped notch is tightly fitted with the outer circumference of the utility pole. The fixing block is then fixed to the outer circumference of the utility pole using a flexible fixing rope. This fixing method makes the connection between the fixing block and the box body more secure. Even when encountering severe weather such as strong winds and heavy rain or being hit by external forces outdoors, the possibility of the meter box shaking or even loosening can be effectively reduced, greatly improving the installation stability of the meter box on the utility pole.

[0008] Optionally, an accommodating notch for the flexible fixing rope to be inserted into is provided on the inner wall of the arc-shaped notch.

[0009] By adopting this technical solution, during long-distance transportation of the meter box, the flexible fixing rope can be clipped into the receiving notch provided on the inner wall of the arc-shaped notch, ensuring proper storage and preventing the flexible fixing rope from dangling or becoming entangled. This not only makes the internal space layout of the meter box more regular, reduces the risk of interference or damage to other components caused by the fixing rope's dangling during transportation, but also facilitates the handling and arrangement of the meter box by staff. When installing the meter box on a utility pole, the flexible fixing rope can be easily removed from the receiving notch and quickly put into use, working in conjunction with the fixing block to secure the meter box to the utility pole.

[0010] Optionally, an elastic clamping piece is provided on the inner wall of the limiting through groove, and a plurality of positioning grooves for the elastic clamping piece to be clamped into are formed on the fixing block.

[0011] By adopting the above technical solution, during the sliding process of the fixed block, when it reaches a specific position (such as a storage state flush with the outer side of the box door or an application state protruding from the outer side of the box door), the elastic clip on the inner wall of the limit groove automatically snaps into the corresponding positioning groove on the fixed block. This design provides clear positioning for the fixed block, making it easier for staff to accurately determine whether the fixed block has reached the required position. At the same time, the engagement between the elastic clip and the positioning groove can effectively enhance the installation stability of the fixed block in the corresponding state, preventing the fixed block from sliding arbitrarily due to external forces, and ensuring that the fixed block can be firmly maintained in the corresponding state during transportation or installation of the meter box.

[0012] Optionally, a limiting baffle is fixedly provided on the outer edge of the side of the fixing block facing the box door, and a limiting recess for the limiting baffle to be inserted into is provided on the inner edge of the opening of the limiting through groove facing the box door.

[0013] By adopting the above technical solution, this design not only provides clear positioning guidance for the fixed block to slide into place, making it easier for operators to accurately determine whether the fixed block is installed in place, but also effectively enhances the installation stability of the fixed block in this state, preventing it from shaking or shifting, and ensuring a stable connection between the meter box and the utility pole. Moreover, when the limit baffle is engaged with the limit groove, the side of the fixed block facing the box door is flush with the inner wall of the box, which will not interfere with the subsequent installation of the electricity meter, allowing the electricity meter to be installed smoothly.

[0014] Optionally, a plurality of first screw holes that can overlap with the through holes on the electric energy meter are provided on the side of the fixing block facing the box door.

[0015] By adopting this technical solution, when installing the energy meter, the first screw holes on the side of the fixing block facing the door precisely align with the through holes on the energy meter, allowing workers to securely fasten the meter to the fixing block directly with screws. This design eliminates the need for additional fixing holes on the inner wall of the box, simplifies the box processing process, reduces production costs, and avoids the problem of excessive holes in the box that may affect the structural strength of the box.

[0016] Optionally, the outer edge of the limit baffle is a curved surface.

[0017] By adopting the above technical solution, the curved surface structure makes the limit baffle smoother during insertion into the limit slot, reducing friction and collision with the inner edge of the limit slot opening, simplifying operation and facilitating workers to quickly and accurately insert the limit baffle into the limit slot. At the same time, this curved surface design also plays a certain guiding role. Even if there is a slight deviation during the insertion process, the curved surface can guide the limit baffle smoothly into the limit slot, improving the installation error tolerance rate.

[0018] Optionally, the locking member includes two locking plates slidably mounted on the inner wall of the box and an elastic adjusting member installed thereon, the two locking plates being distributed side by side up and down, and the elastic adjusting member being used to drive the two horizontally mounted locking plates to slide back and forth in a direction approaching each other; locking notches are provided on the sides of the two locking plates approaching each other, and the limit baffle is inserted into the locking notch when the side of the fixed block away from the box door is flush with the outer side of the box door, and the side of the locking plate away from the box door abuts against the side of the fixed block facing the box door when the limit baffle is inserted into the limit groove.

[0019] By adopting the above technical solution, during transportation, when the side of the fixed block away from the box door is flush with the outer side of the box door, the limiting baffle is inserted into the locking notch of the locking plate, and the elastic adjustment member drives the two locking plates closer to each other, firmly locking the fixed block to prevent it from shaking during transportation, thereby ensuring the safety of the internal components of the meter box. During installation, the limiting baffle is inserted into the limiting groove, and the side of the locking plate away from the box door abuts against the side of the fixed block facing the box door, effectively limiting and locking the protruding state of the fixed block to ensure a stable connection between the meter box and the utility pole. This design cleverly utilizes the elastic adjustment member and the locking plate to achieve precise locking of the fixed block in different states. The operation is convenient and the locking effect is reliable. It not only meets the fixing requirements of the fixed block during transportation, but also ensures the stability of the meter box during installation, and improves the adaptability and safety of the meter box in different usage scenarios.

[0020] Optionally, the elastic adjustment member includes two adjustment rods fixed on the inner wall of the box, telescopic rods installed vertically on opposite sides of the adjustment rods, and a tension spring located in a stretched state inside the telescopic rods; one end of the two telescopic rods is fixedly connected to the upper and lower sides of the adjustment rods, respectively, and the relatively distant ends of the two telescopic rods are fixedly connected to the sides of the two locking plates that are close to each other, and the tension spring is used to make the telescopic rod maintain an elastic force that tends to shorten its length.

[0021] By adopting this technical solution, during transportation, the elastic force of the tension spring keeps the telescopic rod shortened, driving the two locking plates toward each other, firmly engaging the limit baffle on the stowed fixed block into the locking notch, effectively preventing the fixed block from shaking and ensuring safe transportation of the meter box. During installation, when the fixed block is in use and the limit baffle is engaged in the limit groove, the telescopic rod and tension spring still ensure close contact between the locking plate and the fixed block, reliably locking the protruding fixed block.

[0022] Optionally, elastic pads are fixed on the sides of the two locking plates that are close to each other and press against the outer side of the electric energy meter.

[0023] By adopting this technical solution, when the energy meter is mounted on the fixing block, the elastic pads on the adjacent sides of the two locking plates will press against the outer surface of the meter. On the one hand, the elastic pads provide a cushioning effect, effectively absorbing and dissipating external vibration and impact, reducing damage to the energy meter caused by external factors and increasing its service life and stability. On the other hand, the elastic pads' firming effect further enhances the stability of the energy meter's installation, preventing it from shaking within the meter box and ensuring accurate meter readings.

[0024] Optionally, the inner wall of the locking notch is a curved surface.

[0025] By adopting this technical solution, the advantages of the curved inner wall design are fully demonstrated when the limit baffle is inserted into the locking notch. The curved surface structure provides a good guide. Even if the limit baffle has a certain angle deviation during insertion, it can slide smoothly into the locking notch along the curved surface, greatly reducing the difficulty of installation and improving installation efficiency. At the same time, the curved inner wall reduces the contact area between the limit baffle and the inner wall of the locking notch, reducing the friction between the two, making the installation process smoother, reducing wear caused by friction, and extending the service life of the limit baffle and locking plate.

[0026] In summary, this application has the following beneficial technical effects: During long-distance transportation, the fixing block can be slid to a storage state flush with the outer side of the box door, which reduces space occupancy and is easy to fix to prevent shaking. When the meter box is installed on a utility pole, the fixing block is slid and adjusted to an application state protruding from the outer side of the box door, so that the arc-shaped notch fits tightly against the outer peripheral surface of the utility pole, and then the fixing block is fixed to the outer periphery of the utility pole using a flexible fixing rope. This fixing method makes the connection between the fixing block and the box body more firmly fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0028] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 This is a schematic diagram of the structure of the flexible fixing rope installation and coordination in an embodiment of the present application; Figure 3 This is a partial cross-sectional structural diagram of the embodiment of the present application embodying the installation and coordination of the fixing block; Figure 4This is a partial cross-sectional structural diagram of the embodiment of the present application showing the clamping fit between the fixing block and the baffle; Figure 5 This is a partial cross-sectional structural diagram of the embodiment of the present application embodying the installation and cooperation of the locking member; Figure 6 This is a partial cross-sectional structural diagram of an embodiment of the present application showing a baffle being engaged in a limiting sink; Figure 7 It is a schematic diagram of the exploded structure of the installation distribution of the locking member and the fixing assembly according to the embodiment of the present application.

[0029] In the figure, 1. box body; 11. installation cavity; 12. heat dissipation port; 13. air deflector; 14. limiting through groove; 141. limiting recess; 142. placement groove; 2. box door; 3. fixing assembly; 31. fixing block; 311. arc-shaped notch; 312. accommodating notch; 313. first screw hole; 314. baffle; 315. positioning groove; 32. flexible fixing rope; 4. locking member; 41. locking plate; 411. locking notch; 42. elastic adjusting member; 421. adjusting rod; 422. telescopic rod; 423. tension spring; 43. elastic pad; 5. elastic clamping member; 51. compression spring; 52. arc-shaped protrusion. DETAILED DESCRIPTION

[0030] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0031] Example: Reference Figure 1 and Figure 2 A smart low-voltage metering box includes a box body 1, wherein the box body 1 is provided with an installation cavity 11 and a box door 2 for sealing the installation cavity 11. One vertical edge of the box door 2 is rotatably connected to the opening edge of the installation cavity 11, and the other side edge of the box door 2 is locked with the box body 1 through a conventional lock structure; a plurality of heat dissipation vents 12 are provided on two opposite vertical side surfaces of the box body 1, and a guide cover 13 with the opening facing the outside edge of the heat dissipation vents 12 is fixedly provided.

[0032] Reference Figure 2 、 Figure 3 and Figure 4 Two upper and lower limiting grooves 14 are horizontally opened on the inner wall of the box body 1 away from the box door 2. A fixing assembly 3 is provided in the box body 1, wherein the fixing assembly 3 includes a fixing block 31 slidably arranged in the limiting groove 14, and an arc-shaped notch 311 is opened on the side of the fixing block 31 away from the box door 2. A flexible fixing rope 32 is detachably installed on the inner wall of the arc-shaped notch 311; The fixing block 31 can slide back and forth in a direction away from the box door 2, and the side of the fixing block 31 away from the box door 2 can slide until it is flush with the outer side of the box door 2 or protrudes from the outer side of the box door 2. A locking member 4 is provided in the box body 1 to lock the sliding state of the fixing block 31; an accommodating notch 312 for the flexible fixing rope 32 to be inserted is provided on the inner wall of the arc-shaped notch 311, so as to make it more convenient to store and place the flexible fixing rope 32 during transportation; When the meter box is transported over long distances, the fixing block 31 can be slid inward to a storage state flush with the outer side surface of the box body 1, and the fixed block 31 in the storage state can be locked by the locking member 4; when the meter box is installed on a utility pole, the fixing block 31 can be slid to an application state protruding from the outer side surface of the box body 1, so that the arc-shaped notch 311 is tightly fitted with the outer peripheral surface of the utility pole, and then the flexible fixing rope 32 is used to fix the fixing block 31 (specifically by tying, knotting, etc.) on the outer periphery of the utility pole.

[0033] Reference Figure 3 and Figure 4 A limit baffle 314 is fixed on the outer edge of the side of the fixing block 31 facing the box door 2, and the outer edge of the limit baffle 314 is an arc surface. A limit groove 141 for the limit baffle 314 to be engaged is formed on the inner edge of the opening of the limit slot 14 facing the box door 2; a plurality of first screw holes 313 that can coincide with the through holes on the electric energy meter are formed on the side of the fixing block 31 facing the box door 2; When the meter box is installed, the fixing block 31 is slid to the application state protruding from the outer side of the box body 1. At this time, the limiting baffle 314 is inserted into the limiting groove 141 along its own arc surface. The side of the fixing block 31 facing the box door 2 is flush with the inner wall of the box body 1 and will not interfere with the subsequent installation of the electric energy meter. Moreover, the electric energy meter can be directly fixed in the first screw hole 313 on the fixing block 31 by screws, without the need to open additional fixing holes on the inner wall of the box body 1.

[0034] Reference Figure 4 An elastic clamping member 5 is provided on the inner wall of the limiting groove 14, wherein the elastic clamping member 5 includes a compression spring 51 and an arc-shaped protrusion 52. The compression spring 51 presses one side of the arc-shaped protrusion 52 so that a portion of the arc-shaped protrusion 52 protrudes from the opening of the placement groove 142. The outer side surface of the protruding portion of the arc-shaped protrusion 52 is an arc surface, and the arc length corresponding to the arc surface is a minor arc. Two positioning grooves 315 are provided on the fixing block 31 for the elastic clip 5 to be snapped into; when the fixing block 31 slides to the corresponding two states, the protruding parts of the arc-shaped protrusion 52 are respectively snapped into the corresponding positioning grooves 315 under the action of the compression spring 51, thereby improving the installation stability of the fixing block 31 in the two states.

[0035] Reference Figure 4 、 Figure 5 and Figure 6The locking member 4 includes two locking plates 41 slidably mounted on the inner wall of the box body 1 and an elastic adjustment member 42 installed thereon. The two locking plates 41 are arranged side by side in an upper and lower direction, wherein the elastic adjustment member 42 is used to drive the two horizontally mounted locking plates 41 to slide back and forth in a direction approaching each other; a locking notch 411 is formed on the side surfaces of the two locking plates 41 approaching each other, and the inner wall of the locking notch 411 is an arc surface; When the side of the fixing block 31 away from the box door 2 is flush with the outer side of the box door 2, the edges of the limiting baffles 314 on the two fixing blocks 31 that are away from each other are respectively inserted into the corresponding locking notches 411; when the limiting baffles 314 are inserted into the limiting grooves 141, the side of the locking plate 41 away from the box door 2 abuts against the side of the fixing block 31 facing the box door 2, so that the protruding state of the fixing block 31 is limited and locked by the locking plate 41.

[0036] Reference Figure 5 and Figure 6 , elastic pads 43 made of rubber are fixed to the sides of the two locking plates 41 that are close to each other by glue; when the electric energy meter is installed between the two locking plates 41, under the action of the elastic adjusting member 42, the two elastic pads 43 are respectively pressed against the upper and lower sides of the electric energy meter.

[0037] Reference Figure 4 、 Figure 5 and Figure 7 The elastic adjustment member 42 includes two adjustment rods 421 fixed on the inner wall of the box body 1 by screws, telescopic rods 422 vertically installed on opposite sides of the adjustment rods 421, and a tension spring 423 located in the telescopic rod 422. The tension spring 423 is in a stretched state under normal conditions, and the two adjustment rods 421 are vertically installed and fixed; One end of the two telescopic rods 422 is fixedly connected to the upper side and the lower side of the adjustment rod 421 respectively, and the relatively distant ends of the two telescopic rods 422 are fixedly connected to the sides of the two locking plates 41 that are close to each other, wherein the tension spring 423 is used to make the telescopic rod 422 maintain an elastic force that tends to shorten its length.

[0038] The implementation principle of the embodiment of this application is: During long-distance transportation, the fixing block 31 is slid inward until it is flush with the outer side of the box body 1. At this time, the arc-shaped protrusion 52 of the elastic clamping member 5 is engaged with the corresponding positioning groove 315 of the fixing block 31, thereby improving the storage stability. At the same time, the locking plate 41 of the locking member 4 locks the fixing block 31 to prevent it from shaking. When installing on a utility pole, slide the fixing block 31 to the application state where it protrudes from the outer side of the box body 1. The limiting baffle 314 is inserted into the limiting recess 141 along the arc surface. The arc-shaped protrusion 52 is snapped into the other positioning groove 315. The fixing block 31 is fixed to the utility pole using the flexible fixing rope 32 without affecting the installation of the energy meter. The energy meter can be directly fixed to the first screw hole 313 of the fixing block 31 by screws. In addition, under the action of the elastic adjustment member 42, the locking plate 41 locks the fixed block 31 during transportation and limits the protruding state of the fixed block 31 during installation. When installing the electric energy meter, the elastic pad 43 can also press against the upper and lower sides of the electric energy meter to ensure a stable installation.

[0039] Unless otherwise defined, the terms or scientific terms used in this application should have the usual meanings understood by people with ordinary skills in the field to which this application belongs. The "first", "second", "third" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "A" or "one" and other similar words do not indicate a quantity limit, but rather indicate the existence of at least one. "Include" or "comprising" and other similar words mean that the elements or objects appearing before "include" or "comprising" cover the elements or objects listed after "include" or "comprising" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0040] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. An intelligent low-pressure metering box, comprising a box body (1), wherein the box body (1) is provided with an installation cavity (11) and a box door (2) for sealing the installation cavity (11); characterized in that: A limiting groove (14) is provided on the inner wall of the box body (1) away from the box door (2), a fixing block (31) is slidably provided in the limiting groove (14), and the fixing block (31) can slide back and forth in a direction away from the box door (2); An arc-shaped notch (311) is provided on the side of the fixing block (31) away from the box door (2), and a flexible fixing rope (32) is detachably mounted on the inner wall of the arc-shaped notch (311). The side of the fixing block (31) away from the box door (2) can slide to a state where the fixing block (31) is flush with the outer side of the box door (2) or protrudes from the outer side of the box door (2). A locking member (4) is provided in the box body (1) for locking the sliding state of the fixing block (31).

2. The intelligent low-pressure metering box according to claim 1, characterized in that: An accommodating notch (312) for the flexible fixing rope (32) to be inserted into is provided on the inner wall of the arc-shaped notch (311).

3. The intelligent low-pressure metering box according to claim 1, characterized in that: An elastic clamping member (5) is provided on the inner wall of the position-limiting through groove (14), and a plurality of positioning grooves (315) for the elastic clamping member (5) to be clamped are provided on the fixing block (31).

4. The intelligent low-pressure metering box according to claim 1, characterized in that: A limiting baffle (314) is fixedly provided on the outer edge of the side of the fixing block (31) facing the box door (2), and a limiting recess (141) for the limiting baffle (314) to be snapped into is provided on the inner edge of the opening of the limiting through slot (14) facing the box door (2).

5. The intelligent low-pressure metering box according to claim 4, characterized in that: The side of the fixing block (31) facing the box door (2) is provided with a plurality of first screw holes (313) that can overlap with the through holes on the electric energy meter.

6. The intelligent low-pressure metering box according to claim 4, characterized in that: The outer edge of the limiting baffle (314) is a curved surface.

7. The intelligent low-pressure metering box according to claim 4, characterized in that: The locking member (4) comprises two locking plates (41) slidably mounted on the inner wall of the box body (1) and is provided with an elastic adjustment member (42), the two locking plates (41) being arranged side by side in an upper and lower direction, and the elastic adjustment member (42) is used to drive the two horizontally mounted locking plates (41) to slide back and forth in a direction approaching each other; A locking notch (411) is provided on the sides of the two locking plates (41) that are close to each other. The limiting baffle (314) is inserted into the locking notch (411) when the side of the fixing block (31) away from the box door (2) is flush with the outer side of the box door (2). When the limiting baffle (314) is inserted into the limiting recess (141), the side of the locking plate (41) away from the box door (2) abuts against the side of the fixing block (31) facing the box door (2).

8. The intelligent low-pressure metering box according to claim 7, characterized in that: The elastic adjustment member (42) comprises two adjustment rods (421) fixed on the inner wall of the box body (1), telescopic rods (422) vertically installed on opposite sides of the adjustment rods (421), and tension springs (423) in a stretched state located inside the telescopic rods (422); One end of the two telescopic rods (422) is fixedly connected to the upper side and the lower side of the adjusting rod (421), respectively. The relatively distant ends of the two telescopic rods (422) are fixedly connected to the mutually close sides of the two locking plates (41), respectively. The tension spring (423) is used to exert an elastic force to keep the telescopic rod (422) in a shortened direction.

9. The intelligent low-pressure metering box according to claim 7, characterized in that: An elastic pad (43) is fixed on the sides of the two locking plates (41) that are close to each other and presses against the outer side of the electric energy meter.

10. The intelligent low-pressure metering box according to claim 7, characterized in that: The inner wall of the locking notch (411) is an arc surface.

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