Electric energy metering box with internal protection function

Abstract

The utility model provides a kind of electric energy metering box with protection function inside, it is related to electric power equipment technical field, including electric energy metering box, electric energy metering box is equipped with mounting plate, four corners of mounting plate side wall are equipped with four groups of connecting plate;Further including protection mechanism, the protection mechanism includes fixed cylinder, the fixed cylinder is provided with four groups, four groups The fixed cylinder is fixedly connected with connecting plate side wall respectively, the middle part of fixed cylinder inboard wall is equipped with multiple elastic sheets, the top of fixed cylinder inboard wall is equipped with multiple interval plates, the bottom of fixed cylinder is equipped with limit groove, the utility model designs the quick locking and unlocking system based on elastic sheet and groove cooperation, change the problem that traditional protection device dismounting is complicated and time-consuming.

Description

Technical Field

[0001] This utility model relates to the field of power equipment technology, and more specifically, it relates to an energy metering box with internal protective functions. Background Technology

[0002] Electricity metering boxes are specialized enclosed enclosures used in power systems to install electricity meters, transformers, circuit breakers, and other electricity metering and distribution protection devices. They are widely used in various electricity-consuming locations such as residential communities, industrial parks, and commercial buildings. They are key infrastructure for achieving accurate electricity metering, safe electricity management, and electricity billing. However, existing electricity metering boxes have significant shortcomings in their internal protection design. These deficiencies affect the effectiveness and reliability of the equipment. Traditional electricity metering boxes often only focus on the protection level of the outer shell, achieving basic dustproof, waterproof, and anti-theft functions through sealing strips and locks. However, they lack effective protection measures for various electrical components and metering devices inside the box. Even if some products are equipped with internal protection devices, these devices have certain drawbacks in terms of disassembly and maintenance.

[0003] Existing internal protective devices typically employ traditional connection methods such as bolt fixing, snap locking, or welding installation. When maintenance personnel need to inspect, calibrate, or replace internal equipment such as electricity meters and transformers, they must first remove these protective devices to access the protected equipment. However, the disassembly process of these protective devices is often extremely cumbersome and time-consuming. This inconvenience in disassembling protective devices has brought some negative impacts in practical applications. It not only prolongs maintenance outage time and affects power supply reliability, but also increases the labor intensity and operational risks for maintenance personnel. Frequent and complex disassembly and assembly operations can also easily cause mechanical damage to the protective devices and internal equipment, reducing the overall reliability and service life of the equipment. Utility Model Content

[0004] (a) Technical problems to be solved In view of the problems existing in the prior art, this utility model provides an energy metering box with internal protection function to solve the technical problems mentioned in the background art.

[0005] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: An internally protected energy metering box includes an energy metering box with an internal mounting plate. Four sets of connecting plates are located at the four corners of the mounting plate's sidewall. The box also includes a protective mechanism comprising four sets of fixed cylinders, each fixedly connected to the sidewall of the connecting plate. Multiple sets of elastic plates are located in the middle of the inner sidewall of each fixed cylinder, multiple sets of spacers are located at the top of the inner sidewall, and a limiting groove is formed at the bottom of the fixed cylinder.

[0006] Preferably, a push rod is slidably connected within the limiting groove, a connecting sleeve is fitted on the outer surface of the push rod, and multiple sets of sliding plates are provided on the outer wall of the connecting sleeve. Through the sliding cooperation of the push rod within the limiting groove and the integrated design of the connecting sleeve and the sliding plates, the precise transmission of unlocking force and the synchronous linkage of the sliding plates are achieved.

[0007] Preferably, the outer wall of the slide plate is provided with a retaining ring, and the outer surface of the retaining ring is provided with a groove. The groove is adapted to the elastic sheet, and the retaining ring is slidably connected to the inner wall of the fixed cylinder. Through the adaptation of the groove on the outer surface of the retaining ring to the elastic sheet, the forced contraction of the elastic sheet and the rapid release of the locked state are realized.

[0008] Preferably, the lower end face of the connecting sleeve is provided with a push spring, the other end of which is fixedly connected to the inner side wall of the fixed cylinder, and the upper end face of the connecting sleeve is provided with an abutment spring. The continuous outward elastic thrust provided by the push spring ensures that the connecting sleeve and the retaining ring are always in the reset position under normal conditions.

[0009] Preferably, the inner wall of the fixed cylinder is slidably connected to multiple sets of locking rods, the top of each locking rod is connected to a locking plate, and a gap groove is formed between each set of locking rods. The gap groove is adapted to the gap plate, and multiple sets of sliding plates are embedded in the gap groove and slidably connected to the locking rods. The other end of the abutment spring abuts against the side wall of the locking plate. The sliding connection formed by the sliding plate embedded in the gap groove realizes the force transmission during unlocking and avoids the lateral displacement of the locking rods.

[0010] Preferably, the surface of the locking rod has multiple sets of slots that are adapted to the elastic sheet. By having multiple sets of slots adapted to the elastic sheet on the surface of the locking rod, a reliable mechanical locking between the elastic sheet and the locking rod is achieved.

[0011] Preferably, the side wall of the connecting plate is provided with a protective plate, and the four corners of the protective plate are provided with insertion holes that are compatible with multiple sets of clamps. The protective plate is fixed to the connecting plate by clamps and clamps. By providing insertion holes at the four corners of the protective plate that are compatible with the clamps, the effective positioning and quick installation of the protective plate are achieved.

[0012] (III) Beneficial Effects Compared with existing technologies, this utility model provides an energy metering box with internal protection functions, which has the following advantages: This utility model designs a quick locking and unlocking system based on the cooperation of elastic plates and slots, which changes the problem of cumbersome and time-consuming disassembly and assembly of traditional protective devices. The system forms a reliable mechanical locking mechanism by setting multiple sets of elastic plates with good elasticity in the middle of the inner wall of the fixed cylinder, and cooperating with multiple sets of slots opened on the surface of the locking rod. The unlocking process of this locking mechanism is very simple. The maintenance personnel only need to manually press the push rod, drive the slide plate along the interval groove through the connecting sleeve, and drive the locking ring to move inward to the position where the elastic plate is inserted into the groove. At this time, the elastic plate is forcibly contracted and deformed, releasing the locking and fixing with the slot. The installation process is also simple and quick. Just insert the locking rod into the fixed cylinder in the correct direction, so that the elastic plate finds the slot position and locks in place. The double elastic preload of the abutment spring and the push spring ensures the firmness and stability of the lock. This quick disassembly and assembly mechanism improves maintenance efficiency and reduces power outage time and maintenance costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of an energy metering box with internal protective functions according to this utility model. Figure 2 This is a schematic diagram of the structure of the protective plate and the mounting plate in this utility model; Figure 3 This is a schematic diagram of the structure of the fixing cylinder and the clamping plate in this utility model; Figure 4 In this utility model Figure 3 A schematic diagram of the cross-sectional structure; Figure 5 In this utility model Figure 3 A schematic diagram of the explosion structure.

[0014] In the diagram: 11. Electricity metering box; 12. Mounting plate; 13. Connecting plate; 21. Fixing cylinder; 22. Elastic sheet; 23. Spare plate; 24. Limiting groove; 25. Push rod; 26. Connecting sleeve; 27. Slide plate; 28. Snap ring; 29. ​​Groove; 210. Push spring; 211. Abutment spring; 212. Locking rod; 213. Locking plate; 214. Spare groove; 215. Locking slot; 216. Protective plate; 217. Socket. Detailed Implementation

[0015] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0016] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0017] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0018] Please see Figures 1-5 An internally protected energy metering box includes an energy metering box 11, an installation plate 12 inside the energy metering box 11, and four sets of connecting plates 13 at the four corners of the side wall of the installation plate 12; it also includes a protective mechanism, which includes a fixed cylinder 21, of which four sets are provided, and the four sets of fixed cylinders 21 are respectively fixedly connected to the side wall of the connecting plate 13. Multiple sets of elastic plates 22 are provided in the middle of the inner side wall of the fixed cylinder 21, multiple sets of spacer plates 23 are provided at the top of the inner side wall of the fixed cylinder 21, and a limit groove 24 is provided at the bottom of the fixed cylinder 21. A push rod 25 is slidably connected in the limit groove 24. A connecting sleeve 26 is sleeved on the outer surface of the push rod 25. Multiple sets of sliding plates 27 are provided on the outer wall of the connecting sleeve 26. A retaining ring 28 is provided on the outer wall of the sliding plate 27. A groove 29 is provided on the outer surface of the retaining ring 28, which is adapted to the elastic plate 22. The retaining ring 28 is connected to the inner side of the fixed cylinder 21. The sidewall is slidably connected. The lower end face of the connecting sleeve 26 is provided with a push spring 210. The other end of the push spring 210 is fixedly connected to the inner sidewall of the fixed cylinder 21. The upper end face of the connecting sleeve 26 is provided with an abutment spring 211. Multiple sets of locking rods 212 are slidably connected to the inner sidewall of the fixed cylinder 21. The top end of the locking rod 212 is connected to a locking plate 213. A gap groove 214 is formed between each set of locking rods 212. The gap groove 214 is adapted to the gap plate 23. Multiple sets of sliding plates 27 are embedded in the gap groove 214 and slidably connected to the locking rods 212. The other end of the abutment spring 211 abuts against the sidewall of the locking plate 213. Multiple sets of slots 215 adapted to the elastic sheet 22 are opened on the surface of the locking rod 212. The sidewall of the connecting plate 13 is provided with a protective plate 216. The four corners of the protective plate 216 are provided with insertion holes 217 adapted to the multiple sets of locking rods 212. The protective plate 216 is fixed to the connecting plate 13 through the locking plate 213 and the locking rods 212.

[0019] In the normal installation state, the four sets of insertion holes 217 on the surface of the protective plate 216 are fitted onto the outer surface of the multiple sets of clamping rods 212. The multiple sets of elastic plates 22 inside the fixing cylinder 21 are inserted into the clamping grooves 215. The protective plate 216 is positioned between the clamping plate 213 and the fixing cylinder 21. The protective plate 216 is fixedly installed on one side of the connecting plate 13 through the cooperation of the clamping plate 213 and the fixing cylinder 21. When it is necessary to disassemble the protective plate 216, the operator can manually press the push rod 25 to slide the push rod 25 into the fixing cylinder 21. Through the connecting sleeve 26, the sliding plate 27 slides along the spacer groove 214, thereby driving the retaining ring 28 to move inward synchronously until the spring... When the elastic plate 22 is inserted into the groove 29 on the surface of the retaining ring 28, the push spring 210 is compressed. At this time, the elastic plate 22 is released from the locking and fixing of the groove 215, thereby releasing the fixing of the multiple sets of retaining rods 212. At this time, the operator can manually pull out the retaining plate 213 and the multiple sets of retaining rods 212. After the protective plate 216 is removed, the push spring 210 rebounds, pushing the connecting sleeve 26 to drive the push rod 25 back to its position. Then, the multiple sets of sliding plates 27 and retaining rings 28 also return to their positions. The elastic plate 22 is released from the locking and fixing of the groove 29. After that, the locking and fixing of the four sets of retaining plates 213 together with the retaining rods 212 to the corresponding fixing cylinders 21 is released in sequence, and the protective plate 216 can be removed. When the protective plate 216 needs to be installed, the worker pushes the protective plate 216 toward the connecting plate 13, so that the push rod 25 passes through the insertion hole 217. After the protective plate 216 is installed in place, the worker inserts the clamping plate 213 together with the clamping rod 212 into the fixing cylinder 21 along the insertion hole 217 of the protective plate 216. Specifically, the worker aligns the spacer grooves 214 between the multiple sets of clamping rods 212 with the multiple sets of spacer plates 23 inside the fixing cylinder 21, and then performs the insertion action until the spring inside the fixing cylinder 21 is inserted. The elastic piece 22 is inserted into the slot 215, and the side wall of the locking plate 213 abuts against the side wall of the protective plate 216. At this time, the insertion action stops, and the abutment spring 211 also abuts against the side wall of the locking plate 213. Under the elastic force of the abutment spring 211 and the push spring 210, the locking plate 213 together with the locking rod 212 is pushed outward, which can make the elastic piece 22 tightly abut against the slot 215, thereby fixing the locking rod 212 to the fixing cylinder 21, and thus fixing the protective plate 216.

[0020] In all the solutions mentioned above, the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although the embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents. In all the solutions mentioned above, those involving the operation of electrical components, unless otherwise specified, are controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and circuit connections are existing, well-known, and mature technologies, and their electrical connection relationships and specific circuit structures will not be elaborated here. Of all the solutions mentioned above, those involving motors can be combined with reducers if necessary. The connection structure and working principle between the motor and the reducer are existing known technologies, and this utility model will not elaborate on them. Of all the solutions mentioned above, those involving the connection between solar panels and batteries can be equipped with essential accessories such as inverters, battery charging controllers, cables, fuses, and brackets. Their control principles and circuit connections are all existing, well-known, and mature technologies, so their electrical connection relationships and specific circuit structures will not be elaborated here.

Claims

1. An energy metering box with internal protection function, comprising an energy metering box (11), characterized in that: The power metering box (11) is provided with an installation plate (12), and four sets of connecting plates (13) are provided at the four corners of the side wall of the installation plate (12); it also includes a protective mechanism, which includes a fixed cylinder (21), and four sets of the fixed cylinder (21) are provided. The four sets of fixed cylinders (21) are respectively fixedly connected to the side wall of the connecting plate (13). Multiple sets of elastic plates (22) are provided in the middle of the inner side wall of the fixed cylinder (21), and multiple sets of spacer plates (23) are provided at the top of the inner side wall of the fixed cylinder (21). A limit groove (24) is opened at the bottom of the fixed cylinder (21).

2. The power metering box with internal protective function according to claim 1, characterized in that: A push rod (25) is slidably connected in the limiting groove (24), and a connecting sleeve (26) is sleeved on the outer surface of the push rod (25). Multiple sets of sliding plates (27) are provided on the outer side wall of the connecting sleeve (26).

3. The power metering box with internal protective function according to claim 2, characterized in that: The outer wall of the slide plate (27) is provided with a retaining ring (28), and the outer surface of the retaining ring (28) is provided with a groove (29). The groove (29) is adapted to the elastic sheet (22), and the retaining ring (28) is slidably connected to the inner wall of the fixed cylinder (21).

4. The power metering box with internal protective function according to claim 3, characterized in that: The lower end face of the connecting sleeve (26) is provided with a push spring (210), the other end of the push spring (210) is fixedly connected to the inner side wall of the fixed cylinder (21), and the upper end face of the connecting sleeve (26) is provided with an abutment spring (211).

5. An energy metering box with internal protective function according to claim 4, characterized in that: Multiple sets of locking rods (212) are slidably connected to the inner side wall of the fixed cylinder (21). The top of the locking rod (212) is connected to a locking plate (213). A gap groove (214) is formed between each set of locking rods (212). The gap groove (214) is adapted to the gap plate (23). Multiple sets of sliding plates (27) are embedded in the gap groove (214) and slidably connected to the locking rod (212). The other end of the abutment spring (211) abuts against the side wall of the locking plate (213).

6. An energy metering box with internal protective function according to claim 5, characterized in that: The surface of the lever (212) has multiple sets of slots (215) that are adapted to the elastic sheet (22).

7. An energy metering box with internal protective function according to claim 6, characterized in that: The side wall of the connecting plate (13) is provided with a protective plate (216). The protective plate (216) has four corner holes (217) adapted to multiple sets of clamps (212). The protective plate (216) is fixed to the connecting plate (13) through the clamps (213) and the clamps (212).

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