A power metering box applicable to various electric energy meters
The design of the quick-fixing mechanism enables rapid adaptation and fixing of the electricity meter, solving the problem of frequent drilling required for existing electricity metering boxes, and improving installation efficiency and equipment stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN YINXING POWER EQUIP CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-05-22
AI Technical Summary
Existing electricity metering boxes require re-drilling holes and matching bolts on the back of the box for the mounting hole locations of each type of electricity meter. This operation is cumbersome, time-consuming, and labor-intensive. Furthermore, frequent drilling may weaken the box's strength and affect its stability.
The system employs a quick-fixing mechanism, including a slide groove, slide rod, L-shaped plate, slide column, slide plate, and connecting rod. It achieves quick adaptation and fixation of the energy meter through a two-way lead screw and knob, avoiding additional drilling. The movement of the slide groove and slide rod forms a quadrilateral clamping structure, which can accommodate energy meters of different sizes.
It significantly improves the installation efficiency of electricity meters, extends the service life of electricity meter boxes, simplifies the operation process, increases installation efficiency, and reduces damage to the box structure.
Smart Images

Figure CN224266872U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical energy metering equipment technology, specifically an electrical energy metering box that can be used with various types of electrical energy meters. Background Technology
[0002] Electricity is a form of energy based on the movement and interaction of electric charges. It is formed by the directional movement of electrons in a conductor, creating an electric current. It exists in the form of electric and magnetic fields and can be converted into light, heat, and mechanical energy. Widely used in lighting, power transmission, and information dissemination, it is an indispensable basic energy source in modern society. Electricity metering boxes play a crucial role in power systems, integrating electricity metering, circuit control, and protection functions. High-precision electricity meters enable accurate measurement of electricity consumption, providing a reliable basis for electricity billing. Internal switches and other equipment effectively provide overload and short-circuit protection, preventing electrical accidents. Its compact, integrated design saves installation space, simplifies wiring, and reduces construction costs. Intelligent functions support remote meter reading and fault warnings, allowing power departments to monitor electricity usage in real time and improve operational efficiency. Furthermore, its robust enclosure structure can adapt to various complex environments, ensuring stable operation. It is a key device in low-voltage power distribution, ensuring electricity safety, accurate metering, and efficient management.
[0003] In existing electricity metering boxes, the electricity meter is usually installed using a fixed slot method. During installation, the electricity meter is first aligned with the mounting slot inside the box and pushed in along the guide structure. It is then fixed to the box by the buckle of the slot. For electricity meters of different sizes, corresponding mounting holes need to be made on the back of the box according to the mounting hole position of the electricity meter. Finally, the electricity meter is fixed to the inside of the box with bolts.
[0004] Existing electricity metering boxes require re-drilling holes and matching bolts on the back of the box for the mounting hole locations of each type of electricity meter. This operation is cumbersome, especially when replacing different specifications of electricity meters in batches. It is time-consuming, labor-intensive, and requires professional tools. Frequent drilling may weaken the strength of the box and affect the overall stability. Therefore, we propose an electricity metering box that can be used for a variety of electricity meters. Utility Model Content
[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide an energy metering box that can be used with a variety of energy meters. It can quickly adapt to the diverse sizes of energy meters, greatly improve the installation efficiency of energy meters, and extend the service life of the energy metering box, thus effectively solving the problems in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: an energy metering box applicable to various energy meters, comprising a box body, wherein mounting grooves are respectively opened on the rear inner wall of the box body, and energy meters are respectively installed inside the mounting grooves, and a quick fixing mechanism is also included;
[0007] The quick-fixing mechanism includes a sliding groove, a sliding rod, an L-shaped plate, a sliding column, a sliding plate, and a connecting rod. The rear sidewall of the mounting groove has evenly distributed sliding grooves. Sliding rods are slidably connected inside each sliding groove, and L-shaped plates are fixedly connected to the front ends of each sliding rod. Sliding columns are located in the middle of the rear sidewall of the mounting groove, and sliding plates are slidably connected to the outside of each sliding column. Connecting rods are rotatably connected to the outside of each sliding plate. The front ends of the connecting rods are rotatably connected to the outside of adjacent sliding rods located in the same mounting groove. This mechanism can quickly adapt to various sizes of electricity meters, significantly improving the installation efficiency of electricity meters and extending the service life of the electricity meter box.
[0008] Furthermore, the quick-fixing mechanism also includes a bidirectional lead screw and a bellows. The bidirectional lead screw is rotatably connected between the left and right inner walls of the mounting groove. The middle of two horizontally adjacent slide rods located in the same mounting groove is threaded to the bidirectional lead screw. Bellows are provided between the two horizontally adjacent slide rods and between the side of the two horizontally adjacent slide rods away from the slide column and the left and right inner walls of the mounting groove. The bidirectional lead screw is located inside the bellows to realize the synchronous movement of the slide rods.
[0009] Furthermore, the quick-fixing mechanism also includes knobs. The rear side wall of the housing is provided with evenly distributed clearance grooves. The left end of the bidirectional lead screw is fixedly connected to a knob. The outside of the knob is provided with evenly distributed anti-slip grooves. The knobs are all located inside the clearance grooves for easy rotation.
[0010] Furthermore, rectangular grooves are respectively opened on the rear inner wall of the box, and fixing blocks are slidably connected inside the rectangular grooves. Guide rods are respectively provided between the upper and lower inner walls of the rectangular grooves. The rear ends of the fixing blocks are slidably connected to the guide rods located in the same rectangular groove, which facilitates the fixing of the wire harness.
[0011] Furthermore, springs are movably sleeved on the outside of the guide rods, and the springs are located between the upper and lower inner walls of the rectangular groove and the side of the fixed block away from the center of the rectangular groove, so as to achieve elastic clamping of the wire harness.
[0012] Furthermore, the left and right sides of the enclosure are provided with evenly distributed ventilation openings to facilitate internal ventilation.
[0013] Furthermore, the front of the enclosure is hinged with a door, and the outside of the door has observation windows corresponding to the electricity meter, making it convenient to read the numbers on the electricity meter.
[0014] Compared with the prior art, the beneficial effects of this utility model are: This energy metering box, applicable to various types of energy meters, has the following advantages:
[0015] Rotating the knob drives the bidirectional lead screw to rotate, causing two horizontally adjacent slide rods to move concentrically within the slide groove. The connecting rod pushes the slide plate to slide on the slide column. The slide plate, through two vertical connecting rods, drives two vertically adjacent slide rods to slide within their corresponding slide grooves. The L-shaped rods at the front of the slide rods move with the slide rods, synchronously approaching from the left and right sides and top and bottom of the energy meter to fix it in place. Clamping or loosening can be completed simply by rotating the knob, without the need for tools or additional drilling. A single person can quickly complete the installation or replacement, greatly improving work efficiency. The four L-shaped plates form an adjustable quadrilateral clamping space, which can adapt to energy meters of different widths and thicknesses without replacing parts, making it widely compatible. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;
[0018] Figure 3 This is a schematic diagram of the internal cross-section of the present invention;
[0019] Figure 4 This is an enlarged structural diagram of point A of this utility model;
[0020] Figure 5 This is an enlarged structural schematic diagram of section B of this utility model.
[0021] In the diagram: 1. Box body, 2. Electricity meter, 3. Ventilation opening, 4. Mounting slot, 5. Quick fixing mechanism, 51. Slide groove, 52. Slide rod, 53. L-shaped plate, 54. Slide column, 55. Slide plate, 56. Connecting rod, 57. Two-way lead screw, 58. Corrugated pipe, 59. Knob, 6. Rectangular groove, 7. Guide rod, 8. Fixing block, 9. Spring, 10. Box door. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figure 1-5This embodiment provides a technical solution: an energy metering box applicable to various energy meters, including a box body 1. The rear inner wall of the box body 1 has mounting grooves 4, and energy meters 2 are respectively installed inside the mounting grooves 4. It also includes a quick-fixing mechanism 5. Rectangular grooves 6 are respectively opened on the rear inner wall of the box body 1. Fixing blocks 8 are slidably connected inside the rectangular grooves 6. Guide rods 7 are respectively provided between the upper and lower inner walls of the rectangular grooves 6. The rear ends of the fixing blocks 8 are slidably connected to the guide rods 7 located in the same rectangular groove 6. Springs 9 are movably sleeved on the outside of the guide rods 7. The springs 9 are located between the upper and lower inner walls of the rectangular grooves 6 and the side of the fixing block 8 away from the center of the rectangular groove 6. Ventilation openings 3 are evenly distributed on the left and right sides of the box body 1. A door 10 is hinged to the front of the box body 1 via hinges. Each external observation window is provided corresponding to the electricity meter 2. When installing and using the electricity metering box, first, fix the box body 1 to a suitable position on the wall or other supporting structure through the preset mounting holes to ensure that the installation is stable. Then, open the front box door 10 through the hinge to expose the internal mounting groove 4. Place the electricity meter 2 to be installed inside the mounting groove 4. Then connect the cable to the electricity meter 2 in sequence. After the cable is connected, tidy it up. When fixing the cable, pry open the two fixing blocks 8, and the spring 9 will retract. After tidying up the connected cable, place it in the gap between the two fixing blocks 8. After releasing the fixing blocks 8, the spring 9 releases the elastic potential energy and pushes the fixing blocks 8 to slide along the guide rod 7 towards the center. The cable is stably fixed by flexible compression to avoid the interface from loosening due to shaking.
[0024] Quick-fixing mechanism 5: It includes a slide groove 51, a slide rod 52, an L-shaped plate 53, a slide column 54, a slide plate 55, and a connecting rod 56. The rear side wall of the mounting groove 4 is provided with evenly distributed slide grooves 51. The slide rods 52 are slidably connected inside the slide grooves 51. The front ends of the slide rods 52 are all fixedly connected to the L-shaped plates 53. The middle part of the rear side wall of the mounting groove 4 is provided with slide columns 54. The slide plates 55 are slidably connected to the outside of the slide columns 54. The connecting rods 56 are rotatably connected to the outside of the slide plates 55. The front ends of the connecting rods 56 are all connected to the slide rods located in the same mounting groove 4 and adjacent to each other. The external rotating connection of 52 and the quick-fixing mechanism 5 also include a bidirectional lead screw 57 and a bellows 58. The bidirectional lead screw 57 is rotatably connected between the left and right inner walls of the mounting groove 4. The middle of two horizontally adjacent slide rods 52 located in the same mounting groove 4 is threaded to the bidirectional lead screw 57. Bellows 58 are provided between the two horizontally adjacent slide rods 52 and between the side of the two horizontally adjacent slide rods 52 away from the slide column 54 and the left and right inner walls of the mounting groove 4. (The bellows 58 contracts and expands as the two horizontally adjacent slide rods 52 move, ensuring constant stability.) To ensure the bidirectional lead screw 57 remains inside the bellows 58 (preventing dust from affecting its transmission), the bidirectional lead screw 57 is located inside the bellows 58. The quick-fixing mechanism 5 also includes knobs 59. The rear side wall of the housing 1 has evenly distributed clearance grooves. Knobs 59 are fixedly connected to the left ends of the bidirectional lead screw 57. Evenly distributed anti-slip grooves are provided on the outside of the knobs 59, which are all located inside the clearance grooves. Rotating the knob 59 on the left side of the target mounting slot 4 causes the linked bidirectional lead screw 57 to rotate. Due to the thread direction at both ends of the bidirectional lead screw 57... Conversely, two horizontally adjacent slide rods 52 move centripetally along the axis of the bidirectional lead screw 57 within the slide groove 51. When the horizontal slide rod 52 moves, it pushes the slide plate 55 to slide on the slide column 54 through the connecting rod 56. The slide plate 55 will drive the two vertically adjacent slide rods 52 to slide within the corresponding slide groove 51 through the two vertical connecting rods 56. The L-shaped rod 53 at the front end of the slide rod 52 moves with the slide rod 52 and moves synchronously from the left and right sides and the top and bottom directions of the energy meter 2 to form a quadrilateral clamping structure, which stably fixes the energy meter 2 in the mounting groove and clamps and fixes the energy meter 2.
[0025] The working principle of the energy metering box applicable to various energy meters provided by this utility model is as follows: When installing and using the energy metering box, firstly, fix the box body 1 to a suitable position on the wall or other supporting structure through the preset mounting holes to ensure a stable installation. Then, open the front box door 10 through the hinge to expose the internal mounting groove 4. Place the energy meter 2 to be installed inside the mounting groove 4. Turn the knob 59 on the left side of the target mounting groove 4, and the linked bidirectional lead screw 57 will start to rotate. Since the threads at both ends of the bidirectional lead screw 57 are opposite, the two adjacent horizontal sliding rods 52 move centripetally along the axis of the bidirectional lead screw 57 in the sliding groove 51. When the horizontal sliding rod 52 moves, it pushes the slide plate 55 to slide on the sliding column 54 through the connecting rod 56. The slide plate 55 will slide on the sliding column 54 through the two vertical connecting rods 56. Rod 56 drives two vertically adjacent sliding rods 52 to slide within the corresponding sliding grooves 51. The L-shaped rod 53 at the front end of the sliding rod 52 moves with the sliding rod 52, and moves synchronously from the left and right sides and the top and bottom directions of the energy meter 2 to form a quadrilateral clamping structure, which stably fixes the energy meter 2 in the installation groove and clamps and fixes the energy meter 2. Then, the cable is connected to the energy meter 2 in sequence. After the cable is connected, it is tidied up. When fixing the cable, the two fixing blocks 8 are opened, the spring 9 retracts, and the connected cable is neatly combed and placed in the gap between the two fixing blocks 8. After the fixing blocks 8 are released, the spring 9 releases its elastic potential energy and pushes the fixing blocks 8 to slide along the guide rod 7 towards the center. The cable is stably fixed by flexible compression to avoid loosening of the interface due to shaking.
[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. An energy metering box applicable to multiple energy meters, comprising a box body (1), wherein mounting slots (4) are respectively provided on the rear inner wall of the box body (1), and energy meters (2) are respectively installed inside the mounting slots (4), characterized in that: It also includes a quick-fixing mechanism (5); Quick fixing mechanism (5): It includes a sliding groove (51), a sliding rod (52), an L-shaped plate (53), a sliding column (54), a sliding plate (55), and a connecting rod (56). The rear side wall of the mounting groove (4) is provided with evenly distributed sliding grooves (51). The sliding rods (52) are slidably connected inside the sliding grooves (51). The front ends of the sliding rods (52) are fixedly connected to the L-shaped plates (53). The middle part of the rear side wall of the mounting groove (4) is provided with sliding columns (54). The sliding plates (55) are slidably connected to the outside of the sliding columns (54). The connecting rods (56) are rotatably connected to the outside of the sliding plates (55). The front ends of the connecting rods (56) are rotatably connected to the outside of the adjacent sliding rods (52) located in the same mounting groove (4).
2. The energy metering box applicable to various energy meters according to claim 1, characterized in that: The quick fixing mechanism (5) also includes a bidirectional lead screw (57) and a bellows (58). The bidirectional lead screw (57) is rotatably connected between the left and right inner walls of the mounting groove (4). The middle of two horizontally adjacent slide rods (52) located in the same mounting groove (4) is threaded to the bidirectional lead screw (57). Bellows (58) are provided between the two horizontally adjacent slide rods (52) and between the side of the two horizontally adjacent slide rods (52) away from the slide column (54) and the left and right inner walls of the mounting groove (4). The bidirectional lead screw (57) is located inside the bellows (58).
3. The energy metering box applicable to various energy meters according to claim 2, characterized in that: The quick-fixing mechanism (5) also includes a knob (59). The rear side wall of the housing (1) is provided with evenly distributed clearance grooves. The left end of the bidirectional screw (57) is fixedly connected to a knob (59). The outside of the knob (59) is provided with evenly distributed anti-slip grooves. The knob (59) is located inside the clearance groove.
4. The energy metering box applicable to various energy meters according to claim 1, characterized in that: The rear inner wall of the box (1) is provided with rectangular grooves (6), and fixed blocks (8) are slidably connected inside the rectangular grooves (6). Guide rods (7) are provided between the upper and lower inner walls of the rectangular grooves (6), and the rear ends of the fixed blocks (8) are slidably connected to the guide rods (7) located in the same rectangular groove (6).
5. An energy metering box applicable to various energy meters according to claim 4, characterized in that: Springs (9) are movably sleeved on the outside of the guide rod (7). The springs (9) are located between the upper and lower inner walls of the rectangular groove (6) and the side of the fixed block (8) away from the center of the rectangular groove (6).
6. The energy metering box applicable to various energy meters according to claim 1, characterized in that: The box (1) has evenly distributed ventilation openings (3) on its left and right sides.
7. The energy metering box applicable to various energy meters according to claim 1, characterized in that: The front side of the box (1) is hinged with a door (10), and the outside of the door (10) is provided with observation windows corresponding to the electricity meter (2).