A metering box with a maintenance cover

Abstract

The utility model belongs to electrical equipment technical field, especially point to a kind of metering box with maintenance cover plate, including box, the hinged door of box, still include: window frame, fixedly arranged on door and form maintenance opening;Cover, through detachable sliding connection mode be arranged on window frame, for opening or closing maintenance opening;Positioning mechanism, for providing tactile feedback when cover sliding and temporarily positioning it on different preset positions on window frame;Temporary storage part, be arranged on box, for accommodating cover after separating from window frame.The utility model is equipped with window frame, detachable sliding connection's cover and positioning mechanism on door, realize maintenance opening opening and closing and cover temporary positioning, improve the convenience of metering box maintenance and the diversity of maintenance mode.

Description

Technical Field

[0001] This utility model belongs to the field of electrical equipment technology, and specifically refers to a metering box with an inspection cover. Background Technology

[0002] Metering boxes are specialized enclosures that centrally house and protect metering instruments and accessories. They ensure accurate instrument operation, facilitate data recording and equipment maintenance, and enable centralized management of resource consumption data such as water, electricity, and gas. They are key facilities for ensuring fair metering.

[0003] In existing metering boxes, the door is typically hinged to the box body, requiring operators to open the entire door for maintenance, adjustment, or replacement of internal electrical components. This method has significant drawbacks: firstly, with the door fully open, all internal electrical components are exposed to the external environment, making them susceptible to dust, moisture, and debris intrusion. This can affect the normal operation of unattended components and increase the risk of short circuits and electrical leaks. Secondly, if the metering box is installed in areas with high foot traffic or limited space, the fully open door occupies considerable space, potentially interfering with surrounding equipment or personnel, hindering maintenance operations, and preventing precise exposure of specific components, thus reducing maintenance efficiency. Therefore, there is an urgent need for a metering box structure that allows for partial opening for maintenance, reduces the exposed component area, and minimizes space consumption. Utility Model Content

[0004] This invention solves the problems mentioned in the background art by providing a window frame, a detachable and slidably connected cover plate, and a positioning mechanism on the door of the metering box, thereby enabling the opening and closing of the maintenance opening and the temporary positioning of the cover plate.

[0005] The purpose of this utility model is achieved as follows: a metering box with an inspection cover, comprising a box body, a door hinged to the box body, and further comprising: A window frame is fixedly mounted on the box door and forms an inspection opening; A cover plate is provided on the window frame via a detachable sliding connection, used to open or close the inspection opening; A positioning mechanism is used to provide tactile feedback and temporarily position the cover plate at different preset positions on the window frame as it slides. A temporary storage section is provided on the box body to accommodate the cover plate after it has been separated from the window frame.

[0006] The present invention is further configured such that the detachable sliding connection is achieved through a guide rail structure, the guide rail structure comprising: Guide rail grooves are provided on the side walls on both sides of the window frame; Guide protrusions are provided on both sides of the cover plate, and the guide protrusions can be embedded in the guide rail groove.

[0007] The present invention is further configured such that the positioning mechanism includes: The positioning recesses are evenly arranged along the groove walls of the guide rail grooves on both sides; At least one pair of elastic buckles are provided on both sides of the cover plate. The elastic buckles can engage with different positioning recesses when the cover plate slides to provide tactile feedback and achieve positioning.

[0008] The present invention is further configured such that the elastic buckle includes: An elastic arm is provided on the side of the cover plate, and the elastic arm is provided with a clearance groove; An inclined guide portion is disposed opposite to the outside of the relief groove, and a locking head is provided at the center of the inclined guide portion opposite to it to engage with the positioning recess.

[0009] The present invention is further configured such that the temporary storage part is a hanging ear provided on the side wall of the box, and the end of the cover plate is provided with a hanging opening adapted to the hanging ear.

[0010] The present invention is further provided that the outer surface of the cover plate is provided with a handle to facilitate the operator to apply force.

[0011] The present invention is further configured such that the sliding direction of the cover plate relative to the window frame is the up-down direction.

[0012] The present invention is further configured such that the cover plate is made of a transparent material.

[0013] By adopting the above technical solution, the beneficial effects that this utility model can achieve are: 1. By using the window frame on the box door in conjunction with the detachable sliding cover, the maintenance opening can be opened without opening the entire box door, reducing the exposed area of ​​electrical components inside the box and solving the problem that components are easily affected by dust and moisture when the entire box door is opened in existing metering boxes.

[0014] 2. By using the positioning recess of the positioning mechanism in conjunction with the elastic buckle, the cover can be locked in the preset position and provide tactile feedback when sliding, so as to realize the partial or complete opening of the maintenance opening and solve the problem that the existing metering box cannot accurately expose the components that need to be maintained.

[0015] 3. The temporary storage section on the box works in conjunction with the cover plate. After the cover plate is separated, it can be placed in the temporary storage section, which avoids the cover plate being lost or affecting operation by being placed randomly, and solves the problem of the cover plate not having a fixed storage location during maintenance. Attached Figure Description

[0016] Figure 1 This is a first three-dimensional structural schematic diagram of the present invention; Figure 2 This is a second three-dimensional structural schematic diagram of the present invention; Figure 3 This is a cross-sectional structural schematic diagram of the present invention; Figure 4 This is a utility model Figure 3 A magnified structural diagram of part A.

[0017] The attached diagram is labeled as follows: 1. Box body; 2. Box door; 3. Window frame; 4. Inspection opening; 5. Cover plate; 6. Positioning mechanism; 60. Positioning recess; 61. Elastic buckle; 610. Elastic arm; 611. Leaving groove; 612. Inclined guide part; 613. Clamp head; 7. Temporary storage part; 70. Hanging ear; 8. Guide rail structure; 80. Guide rail groove; 81. Guide protrusion; 9. Hanging opening; 10. Handle. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. See also: Figure 1-4 : Example 1:

[0019] This embodiment provides a metering box with an inspection cover, including a box body 1, a box door 2 hinged to the box body 1, and further including: The window frame 3 is fixedly mounted on the box door 2 and forms an inspection opening 4; The cover plate 5 is detachably slidably connected to the window frame 3 and is used to open or close the inspection opening 4. Positioning mechanism 6 is used to provide tactile feedback and temporarily position the cover plate 5 at different preset positions on the window frame 3 when the cover plate 5 slides. Temporary storage section 7 is provided on the box body 1 and is used to accommodate the cover plate 5 after it is separated from the window frame 3.

[0020] The enclosure 1 serves as the mounting base for electrical components and provides load-bearing and protective space. It houses the electrical components, isolates them from external interference, and protects them from damage. Its structure is generally a square box with an opening on one side, and includes component mounting brackets and wiring holes inside. The enclosure door 2 is connected to the enclosure 1 via hinges, thereby closing the opening of the enclosure 1 and protecting the internal components. Its structure is a flat plate adapted to the opening of the enclosure 1, and a lock can be installed on its surface. When the enclosure door 2 closes the opening of the enclosure 1 by rotating the hinges, it can be secured by a buckle or lock.

[0021] The window frame 3 forms an inspection opening 4 on the door 2 and provides an installation reference for the cover plate 5, so that the local inspection area can be exposed by opening and closing the cover plate 5 without opening the entire door 2. Its structure is a frame-like structure surrounding the inspection opening 4, and the shape is a rectangular or square frame. It can be fixed to the surface of the door 2 by screws or integral molding and corresponds to the area of ​​easily inspected components inside the box, without obstructing other structures of the door 2.

[0022] The cover plate 5 is the access opening 4 of the window frame 3 for opening or closing. It is used to protect the corresponding components when closed, and to provide access for maintenance when open. It can also be separated for easy maintenance. It has a flat plate structure with sliding parts on both sides that cooperate with the window frame 3. The shape is adapted to the access opening 4 of the window frame 3. It is detachably connected to the window frame 3 through the sliding structure and covers the access opening 4. It can slide along the window frame 3 and can be removed from the sliding structure when separation is required.

[0023] The positioning mechanism 6 is used to provide tactile feedback when the cover plate 5 slides and temporarily position it in a preset position, so that the cover plate 5 can stay in different states to meet different maintenance needs and avoid random displacement.

[0024] The temporary storage section 7 is used to accommodate the cover plate 5 after it is separated from the window frame 3, so as to prevent the cover plate 5 from being lost, damaged or affecting the operating space due to random placement.

[0025] The detachable sliding connection is achieved through the guide rail structure 8, which includes guide rail grooves 80 on the side walls on both sides of the window frame 3 and guide protrusions 81 on both sides of the cover plate 5. The guide protrusions 81 can be embedded in the guide rail grooves 80. The purpose of the above design is to achieve a detachable sliding connection between the cover plate 5 and the window frame 3 through the cooperation of the guide rail groove 80 and the guide protrusion 81. The guide rail groove 80 is an elongated groove integrally formed on both sides of the window frame 3, and the guide protrusion 81 is an elongated protrusion integrally formed on both sides of the cover plate 5 and adapted to the shape of the guide rail groove 80. The two are slidably engaged by the guide protrusion 81 being embedded in the guide rail groove 80. This structure allows the cover plate 5 to move stably along the guide rail groove 80 to open or close the maintenance opening 4. When needed, the guide protrusion 81 can also be removed from the guide rail groove 80 to separate the cover plate 5 from the window frame 3. This ensures the smoothness of the sliding process of the cover plate 5 and meets the requirement of detachability, without affecting the flexibility of maintenance operations.

[0026] The positioning mechanism 6 includes positioning recesses 60 evenly arranged along the groove walls of the guide rail grooves 80 on both sides, and at least one pair of elastic buckles 61 provided on both sides of the cover plate 5. The elastic buckles 61 can engage with different positioning recesses 60 when the cover plate 5 slides to provide tactile feedback and achieve positioning. The purpose of the above design is to provide tactile feedback and achieve temporary positioning for the sliding of the cover plate 5 through the cooperation of the positioning recess 60 and the elastic buckle 61. The positioning recess 60 is a small concave structure evenly arranged along the groove wall of the guide rail 80. The elastic buckle 61 is a protruding structure with elastic deformation capability located on both sides of the cover plate 5. The positioning recess 60 is integrally formed with the guide rail 80 or machined on the groove wall of the guide rail 80. The elastic buckle 61 can be glued to the side of the cover plate 5 and corresponds to the position of the positioning recess 60. When the cover plate 5 slides along the guide rail 80, the elastic buckle 61 moves with the cover plate 5. When it contacts the positioning recess 60, it undergoes elastic deformation and embeds into the recess to achieve locking. The locking and unlocking process generates obvious tactile feedback and temporarily fixes the cover plate 5 in the current position. This makes it easy for the operator to perceive the preset positioning point of the cover plate 5 and prevents the cover plate 5 from shifting randomly when sliding, meeting the fixed requirements for the opening size in different maintenance scenarios.

[0027] The elastic buckle 61 includes an elastic arm 610 located on the side of the cover plate 5 and an inclined guide portion 612 located opposite to the outside of the clearance groove 611. The elastic arm 610 has a clearance groove 611, and the inclined guide portion 612 has a locking head 613 at its center that engages with the positioning recess 60 to achieve engagement. The purpose of the above design is to ensure that the elastic buckle 61 can stably engage with the positioning recess 60 and easily disengage through the coordinated cooperation of the elastic arm 610, the clearance groove 611, the inclined guide portion 612, and the locking head 613. The elastic arm 610 is a sheet-like elastic structure located on the side of the cover plate 5, with a clearance groove 611 for reserving deformation space. The inclined guide portion 612 is an inclined protrusion located opposite to the outside of the clearance groove 611. The locking head 613 is a protrusion located at the center of the inclined guide portion 612 that matches the shape of the positioning recess 60. The elastic arm 610 and the cover plate 5 can be connected by adhesive. The inclined guide part 612 and the elastic arm 610 are integrally formed, and the locking head 613 is integrally formed with the inclined guide part 612. When the cover plate 5 slides, the inclined guide part 612 first contacts the edge of the positioning recess 60 and guides the locking head 613 to move towards the positioning recess 60. The elastic arm 610 provides deformation space through the relief groove 611, so that the locking head 613 can be smoothly inserted into the positioning recess 60 to achieve locking. When separating, the external force pushes the cover plate 5, which can deform the elastic arm 610 and drive the locking head 613 to disengage from the recess. This ensures the stability of locking and avoids excessive locking that may cause sliding jamming. At the same time, it ensures clear tactile feedback.

[0028] The temporary storage section 7 is a hanging ear 70 provided on the side wall of the box 1, and the end of the cover plate 5 is provided with a hanging opening 9 that is adapted to the hanging ear 70. The purpose of the above design is to provide a fixed storage position for the separated cover plate 5 through the cooperation of the hanging ear 70 and the hanging opening 9. The hanging ear 70 is a protruding structure on the side wall of the box 1, which is mostly L-shaped or hook-shaped. The hanging opening 9 is a notch structure opened at the end of the cover plate 5 and adapted to the shape of the hanging ear 70. The hanging ear 70 can be fixed by screws or integrally formed with the side wall of the box 1, while the hanging opening 9 is directly machined at the end of the cover plate 5. After the cover plate 5 is removed from the guide rail structure 8 of the window frame 3, the operator can align the hanging opening 9 at the end of the cover plate 5 with the hanging ear 70 on the side wall of the box 1 and hang it, so that the cover plate 5 is stably fixed in the temporary storage part 7. This completely frees the operator's hands and avoids the cover plate 5 from being lost, damaged or occupying maintenance operation space due to random placement. At the same time, it ensures that the cover plate 5 is always within easy reach, which is convenient for quick reset after maintenance, greatly improving the efficiency and safety of maintenance operations.

[0029] The outer surface of the cover plate 5 is provided with a handle 10 for easy force application by the operator. The purpose of the above design is to provide a force application point for the operator to push or remove the cover plate 5 through the handle 10. The handle 10 is mostly a protruding structure on the outer surface of the cover plate 5. The handle 10 can be integrally formed with the cover plate 5 or fixed to the outer surface of the cover plate 5 by screws, and is usually located at the edge or middle of the cover plate 5 in an easy force application position. When it is necessary to slide the cover plate 5 to open or close the access opening 4, or to remove the cover plate 5 from the guide rail structure 8 of the window frame 3, the operator can directly pinch the protruding handle 10 with his / her fingers to avoid the inconvenience of operation due to the smooth surface of the cover plate 5, while not affecting the protective effect of the cover plate 5 when closing the access opening 4.

[0030] The sliding direction of the cover plate 5 relative to the window frame 3 is vertical. The purpose of the above design is to limit the sliding direction of the cover plate 5 relative to the window frame 3 to vertical, which is suitable for the common vertical installation scenario of the metering box and human operating habits. When the operator is standing to perform maintenance, pushing the cover plate 5 up and down does not require a large adjustment of hand posture, making it easier to apply force. At the same time, the vertical sliding method can reduce the interference between the cover plate 5 and surrounding equipment or walls during the sliding process, avoid the operation obstruction that may be caused by narrow space during horizontal sliding, and prevent rainwater or dust from accumulating in the gap between the cover plate 5 and the window frame 3, without affecting the sealing and protection effect of the cover plate 5 on the maintenance opening 4.

[0031] The cover plate 5 is made of transparent material. The purpose of the above design is to allow operators to directly observe the operating status of electrical components in the corresponding area of ​​the window frame 3 without opening the cover plate 5 or the overall cabinet door 2 by using a transparent material for the cover plate 5. Applicable materials include polycarbonate, acrylic, or transparent tempered glass. These materials ensure the transparency and visibility of the cover plate 5 while possessing a certain strength and weather resistance, maintaining the closed protection function of the cover plate 5 for the maintenance opening 4. This not only reduces unnecessary opening and closing operations of the cover plate 5 or the cabinet door 2, thereby reducing the risk of dust and moisture entering the cabinet 1 due to frequent opening and closing, but also enables real-time and uninterrupted monitoring of the operating status of electrical components, greatly improving the maintainability and safety of the metering box.

[0032] In this embodiment, when no maintenance is required, the transparent cover plate 5 is slidably connected to the guide rail groove 80 on the side wall of the window frame 3 via the guide protrusions 81 on both sides, thus closing the maintenance opening 4. The handle 10 on the outer surface is easy to grip. When maintenance is required, the operator pushes the cover plate 5 up and down using the handle 10. During the sliding of the cover plate 5, the elastic arm 610 of the side elastic buckle 61 moves accordingly, and the locking head 613 at the center of the inclined guide part 612 engages with the positioning recess 60 on the wall of the guide rail groove 80, providing... The tactile feedback positions the cover plate 5 in a preset position to partially or fully open the access opening 4. If the cover plate 5 needs to be removed, continued force is applied to disengage the latch 613 from the positioning recess 60, the guide protrusion 81 is removed from the guide rail groove 80, and the hanging opening 9 at the end of the cover plate 5 is temporarily attached to the hanging ear 70 on the side wall of the housing 1. After maintenance, the cover plate 5 is removed from the hanging ear 70, reinstalled into the window frame 3 via the guide protrusion 81 embedding into the guide rail groove 80, and pushed to the closed position, where the latch 613 engages and secures with the positioning recess 60. This fully removable design of the cover plate 5 allows for extensive and unobstructed maintenance operations on the area behind the window. When replacing large components or performing complex wiring, complete removal of the cover plate 5 provides maximum operating space, which is unmatched by traditional hinged doors or fixed observation windows. Then, it can be properly stored in the temporary storage section 7, perfectly balancing the needs of both "partial maintenance" and "overall repair" scenarios, demonstrating great advantages of humanized design.

[0033] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. A metering box with an inspection cover, comprising a box body (1) and a door (2) hinged to the box body (1), characterized in that, Also includes: The window frame (3) is fixedly installed on the box door (2) and forms an inspection opening (4); The cover plate (5) is provided on the window frame (3) by a detachable sliding connection and is used to open or close the inspection opening (4). Positioning mechanism (6) is used to provide tactile feedback and temporarily position the cover plate (5) at different preset positions on the window frame (3) when the cover plate (5) slides. A temporary storage section (7) is provided on the box (1) for accommodating the cover plate (5) after it is separated from the window frame (3).

2. A metering box with an inspection cover according to claim 1, characterized in that, The detachable sliding connection is achieved through a guide rail structure (8), which includes: Guide rail grooves (80) are provided on the side walls on both sides of the window frame (3); Guide protrusions (81) are provided on both sides of the cover plate (5), and the guide protrusions (81) can be embedded in the guide rail groove (80).

3. A metering box with an inspection cover according to claim 2, characterized in that, The positioning mechanism (6) includes: The positioning recesses (60) are evenly arranged along the groove walls of the guide rail grooves (80) on both sides; At least one pair of elastic buckles (61) are provided on both sides of the cover plate (5). The elastic buckles (61) can engage with different positioning recesses (60) when the cover plate (5) slides to provide tactile feedback and achieve positioning.

4. A metering box with an inspection cover according to claim 3, characterized in that, The elastic buckle (61) includes: An elastic arm (610) is provided on the side of the cover plate (5), and the elastic arm (610) is provided with a relief groove (611). An inclined guide part (612) is disposed opposite to the outside of the relief groove (611), and a locking head (613) is provided at the center of the inclined guide part (612) opposite to it to engage with the positioning recess (60).

5. A metering box with an inspection cover according to claim 1, characterized in that, The temporary storage section (7) is a hanging ear (70) provided on the side wall of the box (1), and the end of the cover plate (5) is provided with a hanging opening (9) that is adapted to the hanging ear (70).

6. A metering box with an inspection cover according to claim 1, characterized in that, The outer surface of the cover plate (5) is provided with a handle (10) to facilitate the operator to apply force.

7. A metering box with an inspection cover according to claim 1, characterized in that, The sliding direction of the cover plate (5) relative to the window frame (3) is up and down.

8. A metering box with an inspection cover according to claim 1, characterized in that, The cover plate (5) is made of transparent material.

Images