Meter box with operation and maintenance separation

Abstract

The utility model discloses an electric meter box of operation and overhauling separation, including box, be provided with the bearing plate in the box, the box is formed operation room and overhauling room through the bearing plate, be provided with distribution sub -unit on the bearing plate, the operation end of distribution sub -unit sets up in operation room, the wiring end of distribution sub -unit sets up in overhauling room, be provided with circuit assembly for with each distribution sub -unit and outside circuit connection in overhauling room, the upper door of swing setting of corresponding operation room position is established on the box, the lower door of swing setting of corresponding overhauling room position is established on the box, be provided with the protection piece for cutting off circuit assembly power supply when the lower door opens and connecting circuit assembly power supply after the lower door closes on the lower door body. Its structure layout is reasonable, is convenient for simple opening and closing operation simultaneously, when integral overhauling is also same safe, has good use effect.

Description

Technical Field

[0001] This utility model relates to an electric meter box that separates operation and maintenance. Background Technology

[0002] In low-voltage power distribution systems, meter boxes with separate operation and maintenance functions are typically equipped with protective devices, such as circuit breakers or fuses for overvoltage or overcurrent protection, or manual disconnectors for manual power disconnection. When users or children open these boxes without authorization, they may accidentally touch live parts of the circuit breakers or manual disconnectors, resulting in electric shock. Additionally, workers performing maintenance or replacing parts on these boxes may also accidentally touch live parts, causing electric shock. To ensure safety, existing technology incorporates a protective structure connected in series with the power lines supplying the meter. This structure is linked to the meter box's control door; when the door is fully closed, it moves to connect the power lines; when the door is open, it moves to disconnect the power lines, thus providing safety protection. However, this design can lead to power outages when one or two electrical switches are opened during normal operation, hindering simple switching operations. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an electric meter box that separates operation and maintenance. Its structure and layout are reasonable, facilitating simple switching operations while ensuring safety during overall maintenance, resulting in excellent performance.

[0004] To achieve the above objectives, this utility model provides an electric meter box with separate operation and maintenance functions, including a box body. A support plate is provided within the box body, dividing the box body into an operation room and a maintenance room via the support plate. Power distribution components are mounted on the support plate, with their operating terminals located in the operation room and their wiring terminals located in the maintenance room. A circuit assembly for connecting to the various power distribution components and external circuits is provided in the maintenance room. An upper door is swaying on the box body corresponding to the position of the operation room, and a lower door is swaying on the box body corresponding to the position of the maintenance room. The lower door is equipped with a protective component for cutting off power to the circuit assembly when the lower door is open and for connecting power to the circuit assembly when the lower door is closed.

[0005] The beneficial effects of this design are as follows: The meter box, separating operation and maintenance, achieves dual safety protection through its partitioned support plate and power-off protection at the lower door. Firstly, the physical separation of the operating room and maintenance room completely isolates the operating terminals of power distribution components (such as circuit breaker buttons) from exposed wiring terminals, preventing maintenance personnel from accidentally touching live terminals in the maintenance room during simple circuit breaker operations or meter readings, thus reducing the risk of electric shock. Secondly, the linkage protection between the lower door and the circuit assembly ensures automatic power cut-off the moment the maintenance room is opened, eliminating the risk of live maintenance at its source. Even in the event of misoperation or circuit faults, it prevents equipment damage or personal injury caused by accidental power-on during maintenance. This is particularly suitable for occasional operation by non-professionals, significantly reducing the probability of accidents. The protective structure design here is existing technology; for example, Chinese patent application number 201521102695.0 discloses a similar protective structure, which can be directly utilized or other forms can be adopted, which will not be elaborated upon here. Basic routine operations that do not require power outages (such as switching circuits and checking operating status) only require opening the upper door, without touching the maintenance room, reducing the impact of frequent power outages on users' electricity consumption. For example, when using electricity in residential areas or shops, there is no need to interrupt the power supply due to simple operations. During maintenance work, the design of cutting off power when the lower door is opened eliminates the steps of finding the main switch and confirming the power outage status, shortening the maintenance preparation time. At the same time, the maintenance room centrally stores wiring terminals and circuit assemblies, avoiding the occupation of maintenance space by components in the control room, making it easier for maintenance personnel to quickly locate wiring nodes and improve maintenance efficiency.

[0006] As a further feature of this utility model, a receiving groove is provided on the upper surface of the bearing plate along the width direction of the box. A warning sign is oscillating in the receiving groove. The warning sign includes a base plate and an edge plate. The base plate and the edge plate are combined in an L-shape. One end of the base plate is connected to the edge plate, and the other end rotates in the receiving groove on the side away from the lower door and close to the opening of the receiving groove. A warning label is affixed to the edge plate. A linkage is provided between the lower door and the warning sign to expose or receive the edge plate when the lower door is opened or closed.

[0007] The advantages of this design are as follows: When the lower door is opened, the linkage causes the L-shaped warning sign to rotate out of the receiving slot, directly exposing the warning label on the edge plate. This quickly alerts nearby personnel (such as residents and shop staff) that maintenance work is underway in the inspection room, preventing accidental contact with the upper control terminal or approach to the maintenance area. This avoids electric shock or equipment malfunction caused by unauthorized operation and fills in the safety blind spots of the zoning design. It also offers excellent ease of operation, eliminating the need for maintenance personnel to manually place / store the warning sign, as the process is synchronized with the lower door opening and closing, reducing maintenance preparation steps.

[0008] As a further feature of this utility model, a sliding groove is provided on the lower end face of the bearing plate along the length of the box body. The sliding groove is connected to the receiving groove. The linkage is slidably disposed in the sliding groove. The linkage abuts against the lower end face of the bottom plate. The contact surface between the linkage and the bottom plate is inclined. A spring for driving the linkage to slide after the lower door is opened is provided between the linkage and the side wall of the sliding groove. The linkage extends outward from the sliding groove with an abutting protrusion for sliding against the lower door when the lower door is closed. An abutting arm is provided on the lower door corresponding to the position of the abutting protrusion.

[0009] The beneficial effects of this design are as follows: The guiding effect of the sliding engagement between the slide rail and the linkage restricts the linkage to move only along the length of the housing, preventing linkage failure due to misalignment. Simultaneously, the design connecting the slide rail and the receiving groove ensures the transmission of the contact force between the linkage and the warning sign base plate, preventing the warning sign from jamming due to misalignment. The inclined contact structure between the linkage and the base plate transforms the linear sliding of the linkage into smooth rotation of the base plate, avoiding jamming or impact caused by hard contact, ensuring smooth opening / retraction of the warning sign and reducing mechanical wear. The pre-tensioned contact design of the spring actively drives the linkage to slide when the lower door is opened, without relying on external force, ensuring a rapid response and pop-out of the warning sign. The spring also compensates for wear gaps in parts after long-term use, maintaining linkage reliability. The corresponding engagement between the contact protrusion and the lower door contact arm allows for precise hard contact to push the linkage back to its original position when the door is closed, preventing incomplete retraction of the warning sign due to insufficient closing force. Furthermore, the small contact area between the protrusion and the arm reduces closing resistance and does not affect the sealing performance of the lower door.

[0010] As a further feature of this invention, a heat dissipation vent is provided on the side wall of the housing, and a number of heat dissipation blades are mounted on the heat dissipation vent.

[0011] The benefits of this design are twofold: First, it provides efficient heat dissipation. The numerous heat dissipation blades increase the air convection area inside and outside the box, quickly dissipating the heat generated by the power distribution components in the control room and the circuit assembly in the maintenance room during operation. This prevents high temperatures from causing component performance degradation or short circuits, ensuring the long-term stable operation of the meter box where operation and maintenance are separated. Second, it provides dust and water protection. The inclined arrangement of the blades can prevent external dust and rainwater from directly entering the box, reducing terminal oxidation and component moisture-related failures, thus balancing heat dissipation and protection.

[0012] As a further feature of this invention, sealing rings are respectively provided along the circumferential direction of the upper and lower doors.

[0013] The benefits of this design are as follows: This design strengthens the sealing protection. The circumferential sealing ring can tightly fill the gap between the door and the enclosure, preventing external dust, rainwater, insects, etc. from entering the operating room and maintenance room. It also prevents short circuits caused by dust accumulation on power distribution components and oxidation of wiring terminals due to moisture. This effectively maintains environmental stability, reduces the exchange of temperature and humidity between the inside and outside of the enclosure, avoids condensation caused by temperature differences, provides a stable working environment for components, and extends their service life. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model; Figure 2 This is a cross-sectional structural diagram of the location of the linkage component in an embodiment of this utility model; Figure 3 This is an exploded structural diagram of the support plate in an embodiment of this utility model. Detailed Implementation

[0015] This utility model provides an embodiment of an electric meter box with separate operation and maintenance, such as... Figures 1 to 3As shown, the enclosure includes a housing 1, in which a support plate 2 is installed. The housing 1 is divided into an operating room and a maintenance room by the support plate 2. Power distribution components are installed on the support plate 2. The operating terminals of the power distribution components are located in the operating room, and the wiring terminals of the power distribution components are located in the maintenance room. The maintenance room is equipped with a circuit assembly for connecting to the various power distribution components and external circuits. An upper door 3 is swaying on the housing 1 corresponding to the position of the operating room, and a lower door 4 is swaying on the housing 1 corresponding to the position of the maintenance room. The lower door 4 is equipped with a protective component for cutting off the power supply to the circuit assembly when the lower door 4 is opened and for connecting the power supply to the circuit assembly when the lower door 4 is closed. The beneficial effects of this design are as follows: The meter box, which separates operation and maintenance, achieves dual protection from a safety perspective through the partitioned design of the support plate 2 and the power-off protection of the lower door 4. On the one hand, the physical separation of the operation room and the maintenance room completely isolates the operating terminals of the power distribution components (such as the opening and closing buttons) from the exposed wiring terminals, preventing maintenance personnel from accidentally touching the live wiring terminals in the maintenance room when performing simple opening and closing operations or meter reading, thus reducing the risk of electric shock. On the other hand, the linkage protection components of the lower door 4 and the circuit assembly ensure that the power supply is automatically cut off the moment the maintenance room is opened, eliminating the hidden dangers of live maintenance from the root. Even if there is misoperation or circuit failure, it can also prevent equipment damage or personal injury caused by accidental power-on during maintenance. It is especially suitable for scenarios where non-professionals occasionally operate the equipment, greatly reducing the probability of safety accidents. The protective component structure design here is existing technology. For example, Chinese patent application number 201521102695.0 discloses a similar protective component structure, which can be directly used or other forms can be adopted. It will not be elaborated here. Basic routine operations that do not require power outages (such as switching circuits and checking operating status) only require opening the upper door 3, without touching the maintenance room, reducing the impact of frequent power outages on users' electricity consumption. For example, when using electricity in residential areas or shops, there is no need to interrupt the power supply due to simple operations. During maintenance work, the design of opening the lower door 4 to cut off the power eliminates the steps of finding the main switch and confirming the power outage status, shortening the maintenance preparation time. At the same time, the maintenance room centrally stores wiring terminals and circuit assemblies, avoiding the occupation of maintenance space by components in the control room, making it easier for maintenance personnel to quickly locate wiring nodes and improve maintenance efficiency.

[0016] As a further feature of this embodiment, a receiving groove 21 is provided on the upper surface of the bearing plate 2 along the width direction of the box body 1. A warning sign 5 is oscillatingly disposed in the receiving groove 21. The warning sign 5 includes a base plate 51 and an edge plate 52. The base plate 51 and the edge plate 52 are combined in an L-shape. One end of the base plate 51 is connected to the edge plate 52, and the other end rotates in the receiving groove 21 on the side away from the lower door 4 and close to the opening of the receiving groove 21. A warning label is affixed to the edge plate 52. A linkage 6 is provided between the lower door 4 and the warning sign 5 to expose or accommodate the edge plate 52 when the lower door 4 is opened or closed. The advantages of this design are as follows: When the lower door 4 is opened, the linkage 6 causes the L-shaped warning sign 5 to rotate out of the receiving slot 21, directly exposing the warning label on the edge plate 52. This quickly alerts nearby personnel (such as residents of the community or shop staff) that maintenance work is underway in the inspection room, preventing accidental contact with the upper door 3 operating terminal or approach to the maintenance area. This avoids accidental operation by unauthorized personnel that could lead to electric shock or equipment malfunction, and fills the safety blind spots in the zoning design. It also offers excellent ease of operation, eliminating the need for maintenance personnel to manually place / store the warning sign 5, as it is completed synchronously with the opening and closing of the lower door 4, reducing maintenance preparation steps.

[0017] As a further feature of this embodiment, a sliding groove is provided on the lower end face of the bearing plate 2 along the length direction of the box body 1. The sliding groove is connected to the receiving groove 21. The linkage 6 is slidably disposed in the sliding groove. The linkage 6 abuts against the lower end face of the bottom plate 51. The contact surface between the linkage 6 and the bottom plate 51 is inclined. A spring 7 is provided between the linkage 6 and the side wall of the sliding groove to drive the linkage 6 to slide after the lower door 4 is opened. The linkage 6 extends outward from the sliding groove to have an abutting protrusion for sliding against the lower door 4 when the lower door 4 is closed. An abutting arm 41 is provided on the lower door 4 corresponding to the position of the abutting protrusion. The beneficial effects of this design are as follows: The guiding effect of the sliding engagement between the slide rail and the linkage 6 restricts the linkage 6 to move only along the length of the housing 1, preventing linkage failure due to misalignment. Simultaneously, the design connecting the slide rail and the receiving groove 21 ensures the transmission of the contact force between the linkage 6 and the base plate 51 of the warning sign 5, preventing the warning sign 5 from jamming due to misalignment. The inclined contact structure between the linkage 6 and the base plate 51 converts the linear sliding of the linkage 6 into smooth rotation of the base plate 51, avoiding jamming or impact caused by hard contact, and ensuring the opening / closing of the warning sign 5. The retraction process is smooth, reducing mechanical wear; the pre-tightened abutment design of spring 7 can actively drive the linkage 6 to slide when the lower door 4 is opened, without relying on external force, ensuring that the warning sign 5 pops out quickly. At the same time, spring 7 can compensate for the wear gap of parts after long-term use and maintain the reliability of linkage; the corresponding cooperation between the abutment protrusion and the abutment arm 41 of the lower door 4 can accurately push the linkage 6 to reset through hard contact when the door is closed, avoiding the warning sign 5 being incompletely retracted due to insufficient closing force. In addition, the small contact area between the protrusion and the arm can reduce the closing resistance and not affect the sealing performance of the lower door 4.

[0018] As a further feature of this embodiment, a heat dissipation vent is provided on the side wall of the enclosure 1, and several heat dissipation blades 11 are mounted on the heat dissipation vent. The beneficial effects of this configuration are: firstly, it provides efficient heat dissipation, as the several heat dissipation blades 11 increase the air convection area inside and outside the enclosure, quickly dissipating the heat generated by the power distribution components in the control room and the circuit assembly in the maintenance room during operation, preventing high temperatures from causing component performance degradation or short circuits, and ensuring the long-term stable operation of the meter box with separated operation and maintenance functions; secondly, it provides dust and water protection, as the inclined arrangement of the blades can prevent external dust and rainwater from directly entering the enclosure, reducing terminal oxidation and component moisture-related failures, thus balancing heat dissipation and protection.

[0019] As a further feature of this embodiment, sealing rings are respectively provided along the circumferential edges of the upper door 3 and the lower door 4. The beneficial effects of this design are: it strengthens sealing protection; the circumferential sealing rings tightly fill the gaps between the door and the enclosure 1, preventing external dust, rainwater, insects, etc., from entering the operating and maintenance rooms; it avoids dust accumulation and short circuits in power distribution components and oxidation of wiring terminals due to moisture; it effectively maintains environmental stability; it reduces temperature and humidity exchange between the inside and outside of the enclosure; it avoids condensation caused by temperature differences; and it provides a stable working environment for components, extending their service life.

[0020] The above examples are merely one preferred embodiment of this utility model. Ordinary variations and substitutions made by those skilled in the art within the scope of this utility model's technical solution are all included within the protection scope of this utility model.

Claims

1. A meter box with separate operation and maintenance functions, comprising a box body, characterized in that: The enclosure is equipped with a support plate, which divides the enclosure into an operating room and a maintenance room. Power distribution components are installed on the support plate. The operating terminals of the power distribution components are located in the operating room, and the wiring terminals of the power distribution components are located in the maintenance room. The maintenance room is equipped with a circuit assembly for connecting to the various power distribution components and external circuits. An upper door is swaying on the enclosure corresponding to the position of the operating room, and a lower door is swaying on the enclosure corresponding to the position of the maintenance room. The lower door is equipped with a protective component for cutting off the power supply to the circuit assembly when the lower door is opened and for connecting the power supply to the circuit assembly when the lower door is closed.

2. An operation and maintenance separated electric meter box according to claim 1, characterized in that: A receiving groove is provided on the upper surface of the bearing plate along the width direction of the box. A warning sign is oscillating in the receiving groove. The warning sign includes a base plate and an edge plate. The base plate and the edge plate are combined in an L-shape. One end of the base plate is connected to the edge plate, and the other end rotates in the receiving groove on the side away from the lower door and close to the opening of the receiving groove. A warning label is affixed to the edge plate. A linkage is provided between the lower door and the warning sign to expose or accommodate the edge plate when the lower door is opened or closed.

3. The meter box with separate operation and maintenance according to claim 2, characterized in that: The lower end face of the bearing plate is provided with a sliding groove along the length of the box body. The sliding groove is connected to the receiving groove. The linkage is slidably disposed in the sliding groove. The linkage abuts against the lower end face of the bottom plate. The contact surface between the linkage and the bottom plate is set at an angle. A spring is provided between the linkage and the side wall of the sliding groove to drive the linkage to slide after the lower door is opened. The linkage extends outward from the sliding groove with an abutting protrusion for sliding against the lower door when the lower door is closed. An abutting arm is provided on the lower door at the position corresponding to the abutting protrusion.

4. The operation and maintenance separated electrical meter box according to claim 1, wherein: The side wall of the enclosure is provided with a heat dissipation vent, and the heat dissipation vent is equipped with a number of heat dissipation blades.

5. The operation and maintenance separated electrical meter box of claim 1, wherein: The upper and lower doors are respectively provided with sealing rings along their circumferential edges.

Images