Electric energy metering box

By introducing a placement rack and quick-disassembly components into the electricity meter box, the tedious steps in the installation and replacement of the meter are solved, the meter can be quickly installed and removed, and the installation efficiency and safety of the electricity meter box are improved.

CN120657591AInactive Publication Date: 2025-09-16ZHONGMA JIABAO (SHANDONG) ELECTRICAL TECHNOLOGY CO LTD
View PDF 0 Cites 1 Cited by

Patent Information

Application Number
CN202511077879.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-01
Publication Date
2025-09-16
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The installation and replacement of existing electricity meter boxes are cumbersome and time-consuming, and difficult to disassemble, affecting efficiency and user experience.

Method used

The electric energy metering box, placement rack, insertion slot, insertion block and quick disassembly assembly are adopted. Through the cooperation of the limit block, spring and trapezoidal block, the electric meter can be quickly installed and disassembled, reducing the bolt tightening steps.

Benefits of technology

It simplifies the installation and replacement process of electricity meters, shortens installation and replacement time, reduces labor costs and operation and maintenance intensity, improves electricity user experience, and reduces safety hazards.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120657591A_ABST
    Figure CN120657591A_ABST
Patent Text Reader

Abstract

The invention discloses an electric energy metering box, and belongs to the technical field of electric energy metering boxes, and the electric energy metering box comprises an electric energy metering box body, a placement rack and a rapid dismounting assembly, the placement rack is internally provided with an insertion groove, the inner surface of the insertion groove is slidably connected with an insertion block, and the front surface of the insertion block is fixedly connected with an electric meter. And the quick dismounting assembly comprises a first trapezoidal block, a second trapezoidal block, a moving rod, a lower pressing block, a limiting block and a spring, a limiting groove is formed in an insertion block, and a placing groove is formed in the placing frame. According to the invention, the tedious steps of traditional bolt fastening and the like can be reduced, the time for aligning and screwing tools group by group is saved, the ammeter can be conveniently and quickly mounted and dismounted, the mounting and dismounting time is saved, the quick dismounting assembly occupies a small space, the layout congestion caused by the large size of the assembly is avoided, and the wiring planning of circuits in the box is facilitated. Line cross interference is reduced, and potential safety hazards such as short circuit and electric leakage are reduced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention belongs to the technical field of electric energy metering boxes, and in particular relates to an electric energy metering box. Background Art

[0002] Energy meter boxes are specialized enclosures used to house and protect energy meters, instrument transformers, and related electrical components in power systems. They are widely used for energy metering in residential buildings, commercial buildings, and industrial plants. Their core function is to provide a closed, secure installation space for the meter while also enabling electrical connection between the meter and the external power grid, ensuring accurate and secure metering and preventing electricity theft.

[0003] During the assembly of an energy meter box, the meter's installation requires a combination of mechanical fastening and electrical connection. Specifically, the meter's back typically has mounting holes that match the mounting bracket inside the box. During installation, the meter must be placed against the bracket's surface, aligning the holes precisely. Bolts are then inserted through the holes and tightened with nuts to achieve mechanical fastening. Simultaneously, the meter's input and output terminals must be connected to the terminal block inside the box via wires to ensure effective transmission and metering of electrical energy signals.

[0004] Currently, when installing internal electricity meters, it is necessary to use tools such as screwdrivers to tighten multiple sets of bolts one by one. Not only does this require high hole alignment accuracy, but the step-by-step tightening of multiple sets of bolts is also time-consuming. Moreover, when the meter needs to be replaced due to damage to the back components, such as terminal failure or shell cracking, all fixing bolts must be removed first. The operation steps are cumbersome, and the disassembly process is prone to further extend the operation time due to problems such as narrow space, resulting in low efficiency in meter replacement. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the above-mentioned prior art and provide an electric energy meter box, including an electric energy meter box body, a placement rack and a quick-release assembly. The placement rack is provided with an insertion slot inside, the inner surface of the insertion slot is slidably connected with an insertion block, and the front surface of the insertion block is fixedly connected with an electric meter. The quick-release assembly includes a first trapezoidal block, a second trapezoidal block, a moving rod, a pressing block, a limit block and a spring. The insertion block is provided with a limit slot inside, and the placement rack is provided with a placement slot inside.

[0006] The technical solution adopted to solve the above technical problems is: by setting up structures such as an electricity metering box, a placement rack, an insertion slot, an insertion block, an electricity meter and a quick-disassembly component, the tedious steps such as traditional bolt tightening can be reduced, and the time of aligning and tightening tools group by group can be saved, making the electricity meter installation process simpler and more efficient. In large-scale centralized installation scenarios, the installation time of a single box can be significantly shortened, and labor costs can be reduced; at the same time, the replacement time of a single meter can be greatly shortened, the workload of operation and maintenance personnel can be reduced, the replacement of faulty meters can be completed quickly, the power outage duration can be reduced, and the user's electricity experience can be improved.

[0007] Furthermore, the inner surface of the electric energy metering box is fixedly connected to the placement rack.

[0008] Through the above technical solution, it is ensured that the placement rack is firmly set in the electric energy metering box, providing a stable support environment for components such as the electric meter placed on the placement rack, and ensuring the stability of the entire electric energy metering box structure.

[0009] Furthermore, the lower surface of the moving rod is fixedly connected to the first trapezoidal block, and the upper surface of the moving rod is fixedly connected to the lower pressing block.

[0010] Through the above technical solution, the lower pressure block is used to receive external pressure and transmit the pressure to the first trapezoidal block through the moving rod, so that the first trapezoidal block can generate corresponding movement in the placement rack, thereby triggering the action of the quick disassembly assembly.

[0011] Furthermore, one end of the second trapezoidal block away from the spring is fixedly connected to the limiting block, and one end of the second trapezoidal block away from the limiting block is fixedly connected to the spring.

[0012] Through the above technical solution, the spring provides a restoring force for the second trapezoidal block, so that it remains in a specific position when there is no external force. The limit block enters the upper limit groove of the insertion block, limits the insertion block, and then limits the electric meter in front of the insertion block.

[0013] Furthermore, a first groove is provided inside the placement rack, the inner surface of the first groove is fixedly connected to the spring, the inner surface of the first groove is slidably connected to the second trapezoidal block, a second groove is provided inside the placement rack, and the first groove and the second groove are connected.

[0014] Through the above technical solution, the first groove provides installation and movement space for the spring and the second trapezoidal block, ensuring that the spring can stably apply force to the second trapezoidal block. The second groove works together with the first groove to ensure the compactness of the overall structure of the quick-disassembly assembly.

[0015] Furthermore, the inner surface of the placement rack is slidably connected to the moving rod, the inner surface of the placement rack is slidably connected to the first trapezoidal block, and the upper surface of the pressing block is fixedly connected with an anti-slip ball.

[0016] Through this technical solution, the sliding connection between the movable rod and the first trapezoidal block within the placement frame ensures smooth mechanical movement of the quick-release assembly. The anti-slip ball increases friction on the surface of the push-down block, allowing the operator to more steadily and accurately press down on the push-down block, triggering the quick-release assembly.

[0017] Furthermore, a guide groove is provided inside the second trapezoidal block, a guide post is fixedly connected to the inner surface of the first groove, the inner surface of the guide groove is slidably connected to the guide post, and the guide post passes through the interior of the spring.

[0018] Through this technical solution, the guide post and guide slot cooperate to provide precise guidance for the movement of the second trapezoidal block, ensuring the accurate movement path of the second trapezoidal block under the action of the spring and preventing it from deflecting, thereby ensuring the reliability and stability of the quick-release assembly. Furthermore, the guide post passes through the interior of the spring, helping to maintain the spring's stability during operation and preventing it from twisting and deforming.

[0019] Furthermore, a heat dissipation slot is provided inside the electric energy metering box, a safety door is hinged inside the electric energy metering box, and a door lock is provided inside the safety door.

[0020] Through this technical solution, the heat sink dissipates the heat generated by the meter and other components within the energy meter box, maintaining an appropriate temperature and extending the equipment's service life. The safety door and lock protect the components within the box, preventing unauthorized access and ensuring proper energy metering.

[0021] The beneficial effects of the present invention are as follows: (1) By setting up the structures such as the electric energy metering box, placement rack, insertion slot, insertion block, electric meter and quick-disassembly components, the tedious steps such as traditional bolt tightening can be reduced, the time of aligning and tightening tools one by one can be saved, and the time of installing the electric meter can be reduced, making the electric meter installation process more concise and efficient. In large-scale centralized installation scenarios, the installation time of a single box can be significantly shortened, and the labor cost can be reduced; (2) When the meter needs to be replaced due to a fault, the fixed meter can be easily released by the quick disassembly assembly without removing the bolts one by one, which improves the efficiency of replacing the meter and avoids the difficulty of disassembly caused by bolt corrosion and narrow space. This structural setting can greatly shorten the meter replacement time, reduce the workload of operation and maintenance personnel, and quickly complete the replacement of faulty meters, reducing the duration of power outages and improving users' electricity experience; (3) The quick-disassembly components occupy a small space, avoiding the crowded layout caused by the large size of the components, facilitating the planning of circuit routing in the box, reducing cross-interference of the lines, and reducing safety hazards such as short circuits and leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of an electric energy metering box of the present invention; Figure 2 This is a schematic diagram of the internal structure of an electric energy metering box of the present invention; Figure 3 This is a partial structural exploded diagram of an electric energy metering box of the present invention; Figure 4 This is a cross-sectional view of a placement rack for an electric energy meter box according to the present invention; Figure 5 yes Figure 4 Enlarged view of point A in the middle.

[0023] Figure numerals: 1. Electricity meter box; 2. Placement rack; 3. Insertion slot; 4. Insertion block; 5. Electric meter; 6. Quick-release assembly; 601. First trapezoidal block; 602. Second trapezoidal block; 603. Moving rod; 604. Pressing block; 605. Anti-slip ball; 606. Limiting block; 607. Spring; 7. Guide groove; 8. Guide column; 9. First groove; 10. Second groove; 11. Limiting groove; 12. Placement slot; 13. Heat dissipation slot; 14. Safety door; 15. Door lock. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] like Figure 1-Figure 5As shown, an electric energy meter box of this embodiment includes an electric energy meter box body 1, a placement rack 2 and a quick-disassembly component 6. The inner surface of the electric energy meter box body 1 is fixedly connected to the placement rack 2 to ensure that the placement rack 2 is firmly set in the electric energy meter box body 1, providing a stable support environment for components such as the electric meter 5 placed on the placement rack 2, and ensuring the stability of the entire electric energy meter box structure. An insertion slot 3 is provided inside the placement rack 2, and an insertion block 4 is slidably connected to the inner surface of the insertion slot 3. The front surface of the insertion block 4 is fixedly connected to the electric meter 5. As a core functional component, the electric meter 5 plays a key role in accurately measuring the electric energy consumption of a specific power consumption area or power consumption equipment, and is the basis for realizing the quantification statistics and billing of electric energy. The insertion block 4 on the rear side of the electric meter 5 can be inserted into the insertion slot 3. The placement rack 2 is provided with a placement slot 12. The insertion slot 3 and the placement slot 12 provide stable support for the insertion block 4 and the electric meter 5, and a limiting slot 11 is set inside the insertion block 4; when installing the electric meter 5, the insertion block 4 on the rear side of the electric meter 5 is slid into the insertion slot 3. During the insertion of the insertion block 4, the limiting block 606 enters the first groove 9 and the second groove 10 under the compression of the spring 607 on one side. After the insertion block 4 is fully inserted, the limiting block 606 enters the upper limiting slot 11 of the insertion block 4 under the rebound action of the spring 607 to limit the insertion block 4 and the electric meter 5. This structural setting can quickly install the electric meter 5. The quick installation can reduce the tedious steps such as traditional bolt tightening, and save the time of aligning and tightening tools one by one, making the installation process of the electric meter 5 simpler and more efficient. In large-scale centralized installation scenarios, it can significantly shorten the installation time of a single box and reduce labor costs.

[0026] A first groove 9 is provided inside the placement rack 2, and the inner surface of the first groove 9 is fixedly connected to the spring 607, and the inner surface of the first groove 9 is slidingly connected to the second trapezoidal block 602. The first groove 9 provides installation and movement space for the spring 607 and the second trapezoidal block 602, ensuring that the spring 607 can stably apply force to the second trapezoidal block 602. A second groove 10 is provided inside the placement rack 2, and the first groove 9 and the second groove 10 are connected. The second groove 10 cooperates with the first groove 9 to ensure the compactness of the overall structure of the quick-disassembly assembly 6.

[0027] The quick disassembly assembly 6 includes a first trapezoidal block 601, a second trapezoidal block 602, a moving rod 603, a pressing block 604, a limiting block 606 and a spring 607. The surface of the spring 607 is provided with a corrosion-resistant coating. The lower surface of the moving rod 603 is fixedly connected to the first trapezoidal block 601, the upper surface of the moving rod 603 is fixedly connected to the pressing block 604, the end of the second trapezoidal block 602 away from the spring 607 is fixedly connected to the limiting block 606, and the end of the second trapezoidal block 602 away from the limiting block 606 is fixedly connected to the spring 607. The inner portion of the placement rack 2 is fixedly connected to the first trapezoidal block 601. The surface is slidably connected to the moving rod 603, and the inner surface of the placement rack 2 is slidably connected to the first trapezoidal block 601. The first trapezoidal block 601 is in contact with the oblique surface of the second trapezoidal block 602. When the electric meter 5 is damaged and needs to be replaced, the pressing block 604 is pressed, the moving rod 603, and the first trapezoidal block 601 moves downward, and then the second trapezoidal block 602 moves and the spring 607 is compressed, so that the one side limit block 606 enters the first groove 9 and the second groove 10. The operator pushes the electric meter 5 upward to disengage the insertion block 4 from the insertion slot 3. This structural setting can be convenient The electric meter 5 can be disassembled without the need for tools to remove the bolt structure, thus avoiding the difficulty of disassembly caused by bolt corrosion and narrow space. This structural setting can significantly shorten the time of replacing a single meter, reduce the workload of operation and maintenance personnel, and quickly complete the replacement of faulty meters, reduce the duration of power outages, and improve the user's electricity experience. In addition, the movable rod 603 and the lower pressure block 604 are arranged vertically, occupying a small horizontal space. From a spatial perspective, the small size avoids occupying too much space inside the electric energy meter box, allowing more effective area to be reserved inside the box, preventing the layout congestion caused by excessive component size, making the internal structure of the electric energy meter box more compact and orderly, and improving space utilization. In terms of line routing, the quick-disassembly component 6 occupies a small area, providing more flexible space for circuit routing inside the box, facilitating the staff to reasonably arrange the line direction according to actual needs, reducing cross-entanglement between lines, making the line layout clearer and more standardized, facilitating subsequent inspection, maintenance and modification, and effectively reducing line cross interference; and reducing line cross interference, thereby reducing safety hazards such as short circuit and leakage. The upper surface of the pressing block 604 is fixedly connected with an anti-skid ball 605, which increases the friction on the surface of the pressing block 604, making it easier for the operator to press down the pressing block 604 more stably and accurately to trigger the action of the quick disassembly component 6.

[0028] A guide groove 7 is provided inside the second trapezoidal block 602. A guide post 8 is fixedly connected to the inner surface of the first groove 9. The inner surface of the guide groove 7 is slidably connected to the guide post 8. The guide post 8 passes through the interior of the spring 607. The cooperation between the guide post 8 and the guide groove 7 provides precise guidance for the movement of the second trapezoidal block 602, ensuring the accurate movement path of the second trapezoidal block 602 under the action of the spring 607 and preventing it from deflecting, thereby ensuring the reliability and stability of the quick-release assembly 6. At the same time, the guide post 8 passes through the interior of the spring 607, helping to maintain the stability of the spring 607 during operation and preventing the spring 607 from twisting and deforming.

[0029] The energy metering box 1 is internally provided with a heat sink 13, which is used to dissipate heat generated by the operating components such as the electric meter 5 within the box, ensuring that the temperature within the box remains within a suitable range. A safety door 14 is hingedly connected to the box 1 via a door hinge. The door hinge is made of high-strength nylon, with a tensile strength of no less than 80 MPa and a bending strength of no less than 120 MPa. It can effectively withstand the weight of the safety door 14 and the forces generated during daily opening and closing, ensuring the long-term stability of the hinged structure. The nylon door hinge is also wind-resistant and can withstand winds of force 7. In a level 7 wind environment, there is no obvious deformation in the connection between the door axis, the safety door 14, and the electricity metering box 1. The safety door 14 will not open and close unexpectedly or shake due to the action of wind, thereby ensuring the safety and protection performance of the internal components of the electricity metering box 1. A door lock 15 is provided inside the safety door 14. The safety door 14 and the door lock 15 protect the safety of the components inside the box, prevent unauthorized personnel from opening it at will, and ensure the normal operation of the electricity metering work.

[0030] The working principle of this embodiment is as follows: when installing the electric meter 5, the insertion block 4 on the rear side of the electric meter 5 is inserted into the insertion slot 3. During the insertion process of the insertion block 4, the limit block 606 enters the first groove 9 and the second groove 10 under the compression of the spring 607 on one side. After the insertion block 4 is fully inserted, the limit block 606 enters the upper limit groove 11 of the insertion block 4 under the rebound action of the spring 607 to limit the insertion block 4 and the electric meter 5. This structural setting can quickly install the electric meter 5; when the electric meter 5 is damaged and needs to be replaced, press The pressing block 604, the moving rod 603, and the first trapezoidal block 601 move downward, and then the second trapezoidal block 602 moves and the spring 607 is compressed, so that the limit block 606 on one side enters the first groove 9 and the second groove 10. The operator pushes the electric meter 5 upward to disengage the insertion block 4 from the insertion slot 3. This structural setting can easily disassemble the electric meter 5 without the need for tools to disassemble the bolt structure during the process; at the same time, the moving rod 603 and the pressing block 604 are arranged vertically, which takes up little space and will not cause crowded layout, which is convenient for circuit wiring planning in the box.

[0031] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

Claims

1. An electric energy meter box, characterized in that: The utility model comprises an electric energy metering box (1), a placement rack (2) and a quick-disassembly assembly (6); an insertion slot (3) is provided inside the placement rack (2); an insertion block (4) is slidably connected to the inner surface of the insertion slot (3); an electric meter (5) is fixedly connected to the front surface of the insertion block (4); the quick-disassembly assembly (6) comprises a first trapezoidal block (601), a second trapezoidal block (602), a moving rod (603), a pressing block (604), a limiting block (606) and a spring (607); a limiting slot (11) is provided inside the insertion block (4); and a placement slot (12) is provided inside the placement rack (2).

2. The electric energy meter box according to claim 1, characterized in that: The inner surface of the electric energy metering box (1) is fixedly connected to the placement rack (2).

3. The electric energy meter box according to claim 1, characterized in that: The lower surface of the moving rod (603) is fixedly connected to the first trapezoidal block (601), and the upper surface of the moving rod (603) is fixedly connected to the lower pressing block (604).

4. The electric energy meter box according to claim 1, characterized in that: One end of the second trapezoidal block (602) away from the spring (607) is fixedly connected to the limit block (606), and one end of the second trapezoidal block (602) away from the limit block (606) is fixedly connected to the spring (607).

5. The electric energy meter box according to claim 1, characterized in that: A first groove (9) is provided inside the placement rack (2), the inner surface of the first groove (9) is fixedly connected to the spring (607), the inner surface of the first groove (9) is slidably connected to the second trapezoidal block (602), and a second groove (10) is provided inside the placement rack (2), and the first groove (9) and the second groove (10) are connected.

6. The electric energy meter box according to claim 1, characterized in that: The inner surface of the placement rack (2) is slidably connected to the moving rod (603), the inner surface of the placement rack (2) is slidably connected to the first trapezoidal block (601), and the upper surface of the pressing block (604) is fixedly connected to an anti-slip ball (605).

7. The electric energy meter box according to claim 5, characterized in that: A guide groove (7) is provided inside the second trapezoidal block (602), a guide column (8) is fixedly connected to the inner surface of the first groove (9), the inner surface of the guide groove (7) is slidably connected to the guide column (8), and the guide column (8) passes through the interior of the spring (607).

8. The electric energy meter box according to claim 1, characterized in that: A heat dissipation slot (13) is provided inside the electric energy metering box (1), a safety door (14) is hinged inside the electric energy metering box (1), and a door lock (15) is provided inside the safety door (14).

Citation Information

Cited By

  • Modularized electric energy metering box

    CN122246583A