An electric energy metering box easy to maintain and overhaul

Abstract

The utility model provides an easy to maintain and overhaul's electric energy metering box, including electric energy box and inner board subassembly, the side department swing joint of electric energy box has the box door, the inner board subassembly includes the movable plate of activity connection in electric energy box, fixed metering unit has on movable plate, movable plate is connected with electric energy box sliding through slide rail, movable plate below is provided with the supporting plate, the supporting leg and the limit connecting rod of oscillating are provided with on supporting plate, the limit connecting rod with supporting leg between is provided with the linkage connecting rod, the supporting plate is connected with electric energy box sliding through the sliding slot, still be provided with the limit part of can with limit connecting rod abuts on electric energy box, the utility model discloses the linkage mechanism of supporting leg, limit connecting rod, linkage connecting rod and the limit part on electric energy box cooperation of being set on the supporting plate, realized when the inner board subassembly pull out, supporting leg automatic swing down and provide the function of ground support.

Description

Technical Field

[0001] This utility model relates to the field of electricity metering boxes, specifically an electricity metering box that is easy to maintain and repair. Background Technology

[0002] As an essential piece of equipment in the power system, the electricity metering box is responsible for the metering, monitoring, and management of electricity. It is usually installed in key locations in power distribution and integrates precision components such as electricity meters and switches. To adapt to various environmental conditions, the casing of the electricity metering box is usually designed to be compact and durable.

[0003] In traditional electricity metering box designs, the mounting plate for installing meters is typically fixed inside the box using methods such as welding, making it immovable. While this method ensures the stability of the equipment during operation, it forces maintenance personnel to insert their heads or even their bodies into the confined and poorly lit space of the box when inspecting, maintaining, or troubleshooting the meters and circuit breakers. This not only makes maintenance extremely difficult and inefficient but also poses potential risks of electric shock and operational safety to workers.

[0004] To address this issue, existing technologies have proposed improvements using a movable inner panel assembly. This assembly, guided by guide rods and slide rails, allows the mounting plate to be pulled out of the enclosure for external maintenance. However, this pull-out structure, especially when multiple heavy-duty meters and circuit breakers are mounted on the movable plate, still relies entirely on the internal guide rods and slide rails for support when fully extended for maintenance. Under conditions of low load-bearing capacity or after frequent use, the front end may sag or wobble slightly, affecting the stability and safety of maintenance operations. It also increases vertical wear on the internal sliding mechanism, failing to provide a truly stable maintenance platform.

[0005] Therefore, a new technical solution is still needed in this field, which, while providing convenient pull-out maintenance functions, can automatically and reliably provide additional ground support for the fully pulled-out heavy-duty inner plate, so as to completely eliminate the hidden dangers of front-end swaying and sagging, protect the internal guide structure, and ensure the absolute safety and high precision of maintenance operations. Utility Model Content

[0006] The purpose of this invention is to overcome the aforementioned deficiencies of the prior art and provide an energy metering box that is easy to maintain and repair. This energy metering box not only allows the inner panel assembly to be easily pulled out of the box for maintenance, but also automatically deploys a support structure when the inner panel assembly is pulled out, providing stable ground support for the heavily loaded inner panel, thereby solving the problems of sagging and swaying in the pulled-out state and ensuring the safety and stability of maintenance.

[0007] To achieve the above objectives, this utility model provides the following technical solution: An easy-to-maintain and repair electricity metering box includes an electricity box and an inner panel assembly. The side of the electricity box is movably hinged with a box door. The inner panel assembly includes a movable plate movably connected inside the electricity box. A metering unit is fixed on the movable plate. The movable plate is slidably connected to the electricity box via a slide rail. A support plate is provided below the movable plate, and a swingable support leg and a limiting link are provided on the support plate. A linkage link is provided between the limiting link and the support leg. The support plate is slidably connected to the power box through a sliding groove. The power box is also provided with a limiting part that can abut against the limiting link.

[0008] With the above technical solution, when maintenance personnel pull the movable plate, it slides out of the power box via the slide rail. Simultaneously, the support plate also slides out via the slide groove. During the sliding process, the limiting linkage on the support plate moves relative to the fixed limiting part on the power box (e.g., from a contact state to a separation state, or vice versa). This relative movement is transmitted through the linkage, triggering the swingable support leg to automatically extend (e.g., swing downwards around the hinge point) until it contacts the ground. In this way, the front end of the inner plate assembly (movable plate and support plate) in the pulled-out state receives additional support from the ground, resulting in extremely stable structure. This completely avoids sagging and swaying caused by heavy loads, protects the slide rail and slide groove from excessive vertical stress, and greatly improves the safety and convenience of maintenance.

[0009] Furthermore, after the support plate is pulled out and gains stable support, its flat upper surface forms a convenient working platform. Maintenance personnel can temporarily place screwdrivers, multimeters, spare parts, and other repair tools and items on the support plate, freeing their hands and greatly improving the convenience and efficiency of maintenance operations.

[0010] In a preferred embodiment of this invention, a push spring is further provided on the support plate, which acts on the limiting link. The push spring provides driving force for the linkage mechanism. For example, when the limiting link is released from the constraint of the limiting part, the spring can immediately push the linkage mechanism, so that the support leg can quickly and automatically swing into place, simplifying the operation.

[0011] In a preferred embodiment of this invention, the support plate is fixedly connected to the movable plate. This design allows the movable plate and the support plate to form a rigid whole, sliding in and out synchronously, resulting in a simple structure and reliable force transmission.

[0012] In a preferred embodiment of this invention, an adjustable leg is slidably disposed within the support leg, and a positioning bead is slidably disposed on the adjustable leg. A corresponding recess is formed on the support leg corresponding to the positioning bead. This structure (a locking mechanism for a telescopic leg) allows the total length of the support leg to be adjusted to accommodate different installation heights of the power box or uneven ground, ensuring reliable ground contact of the support leg.

[0013] In a preferred embodiment of this invention, the power box is provided with ventilation holes on its side. These ventilation holes facilitate airflow inside the box, aiding in heat dissipation for electrical components such as the metering unit, and ensuring the stability of equipment operation.

[0014] Compared with the prior art, the present invention has the following significant advantages: 1. Automatic support and stable structure: This utility model achieves the function of automatically swinging down and providing ground support when the inner panel assembly is pulled out by a linkage mechanism that is set on the support plate, the support legs, the limiting rod, the linkage rod and the limiting part on the power box.

[0015] 2. Eliminate hidden dangers and improve safety: The automatic support structure effectively supports the weight of the pull-out inner plate assembly (especially the heavy-duty metering unit), completely solving the problem of sagging and swaying at the front end of the pull-out inner plate in the existing technology, providing maintenance personnel with an absolutely stable operating platform and significantly improving the safety of maintenance.

[0016] 3. Protective components and extended lifespan: The additional ground support distributes the vertical load borne by the slide rails and tracks, reducing the risk of wear and deformation of these sliding components and extending the overall service life of the electricity metering box. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model; Figure 2 This is a three-dimensional structural diagram of the maintenance state according to an embodiment of the present invention; Figure 3 This is a cross-sectional view of an embodiment of the present invention; Figure 4 for Figure 3 Enlarged view of part A.

[0019] Explanation of reference numerals in the attached figures: 1. Power box; 2. Inner panel assembly; 21. Moving plate; 22. Support plate; 23. Support leg; 231. Adjustment hole; 232. Positioning bead; 233. Recess; 24. Limiting link; 25. Linkage link; 26. Push spring; 3. Metering unit; 4. Slide rail; 5. Slide groove; 6. Limiting part; 7. Vent hole. Detailed Implementation

[0020] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product.

[0021] It will be understood by those skilled in the art that certain well-known structures and their descriptions may be omitted in the accompanying drawings. The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0022] Example 1 Please see Figure 1-4 This utility model provides an easy-to-maintain and repair electricity metering box. The electricity metering box includes an electricity box 1 and an inner panel assembly 2 installed inside the electricity box 1. The electricity box 1 has a box body and a door that is movably hinged to the side of the box body.

[0023] The inner panel assembly 2 includes a movable plate 21 and a support plate 22.

[0024] The movable plate 21 is used to install core electrical equipment, on which metering units 3 (such as electricity meters, circuit breakers, etc.) are fixed. For ease of maintenance, the movable plate 21 is slidably connected to the power box 1 via a slide rail 4. The slide rail 4 can adopt a conventional structure such as a ball bearing slide rail, so that the movable plate 21 can be smoothly pulled out from inside the power box 1.

[0025] The key improvement of this utility model lies in the support structure. For example... Figure 2 As shown, a support plate 22 is provided below the movable plate 21. The support plate 22 is slidably connected to the power box 1 via a sliding groove 5. In a preferred embodiment, the support plate 22 is fixedly connected to the movable plate 21, so that the movable plate 21 and the support plate 22 form a whole and can slide out or slide in synchronously.

[0026] A linkage support mechanism is provided on the support plate 22. This mechanism includes at least one swingable support leg 23, a limiting link 24, and a linkage link 25 connecting the two. One end of the support leg 23 is pivotally connected to the support plate 22, allowing it to swing about the pivot point, thus enabling it to move in both a folded state (folded under the support plate 22) and an unfolded state (as shown in the image). Figure 2 As shown, it can switch between vertical or nearly vertical to the ground.

[0027] A limiting part 6 is provided at a corresponding position on the inner wall (or frame) of the power box 1. The limiting part 6 can be a protrusion, a stop, or a specific track end.

[0028] The working principle of this linkage mechanism is as follows: When the inner panel assembly 2 is located inside the power box 1 ( Figure 1 As shown in the diagram, the support leg 23 is in the retracted state. At this time, the limiting link 24 may be abutted or constrained by the limiting part 6 on the power box 1 (for example, the limiting part 6 presses the limiting link 24 to keep it in a specific position).

[0029] When the maintenance personnel pull the movable plate 21, the fixed support plate 22 slides outward along the slide groove 5. When the support plate 22 is about to be fully pulled out, the limiting link 24 on it undergoes a critical relative movement with the limiting part 6 on the power box 1 (for example, the limiting link 24 disengages from the obstruction of the limiting part 6).

[0030] Once the limit link 24 is released (or triggered), it immediately drives the support leg 23 to swing downward about its pivot point through the linkage link 25 until the lower end of the support leg 23 contacts the ground.

[0031] Conversely, when the inner panel assembly 2 is pushed back into the power box 1, the lower end of the support leg 23 may touch the threshold or the ground of the power box 1, forcing it to start swinging backward and retracting; or, at the end of the push-in stroke, the limit link 24 re-engages with the limit part 6, and the limit part 6 forces the linkage mechanism to move in the opposite direction, thereby driving the support leg 23 to automatically fold and retract.

[0032] With this design, the unfolding and retraction of the support leg 23 occur automatically as the inner panel assembly is pulled out and pushed in, without manual intervention. The unfolded support leg 23 provides stable ground support for the inner panel assembly 2, which is in the pulled-out state and carries the heavy metering unit 3, effectively preventing its front end from sagging and swaying.

[0033] To make the unfolding action of the supporting leg 23 faster and more reliable, such as Figure 3 As shown, in a preferred embodiment, a push spring 26 is also provided on the support plate 22. The push spring 26 acts on the limiting link 24 or the linkage link 25. When the limiting link 24 is released from the constraint of the limiting part 6, the elastic force of the push spring 26 is immediately released, driving the linkage mechanism to make the support leg 23 swing down quickly.

[0034] To adapt to different installation conditions, such as Figure 4As shown, the support leg 23 can be designed to be height adjustable. In a preferred embodiment, an adjusting leg 231 is also slidably disposed within the support leg 23. A positioning bead 232 is slidably disposed on the adjusting leg 231. The support leg 23 has a plurality of recesses 233 arranged along the length direction, corresponding to the positioning beads 232. By pressing the positioning bead 232 to disengage it from the recess 233, the adjusting leg 231 can be stretched or retracted, and the positioning bead 232 can be engaged in a new recess 233 at a suitable height, thereby locking the total length of the support leg 23.

[0035] In addition, to ensure a good working environment inside the enclosure, ventilation holes 7 are provided on the side (or top or bottom) of the power box 1. The ventilation holes 7 facilitate internal air convection, promptly dissipating the heat generated by components such as the metering unit 3, and preventing the internal temperature from becoming too high.

[0036] In summary, the present invention provides an easy-to-maintain and repair electricity metering box. Through a cleverly designed automatic linkage support mechanism, it solves the safety hazard of unstable front end when the existing pull-out metering box is pulled out for maintenance. It has a simple structure, reliable operation, and extremely high practical value.

[0037] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An easy-to-maintain and repair electricity metering box, comprising an electricity box and an inner panel assembly, wherein a box door is movably hinged to the side of the electricity box, characterized in that, The inner panel assembly includes a movable plate movably connected inside the power box, a metering unit is fixed on the movable plate, and the movable plate is slidably connected to the power box via a slide rail; A support plate is provided below the movable plate, and a swingable support leg and a limiting link are provided on the support plate. A linkage link is provided between the limiting link and the support leg. The support plate is slidably connected to the power box through a sliding groove. The power box is also provided with a limiting part that can abut against the limiting link.

2. The easily maintainable and repairable electricity metering box according to claim 1, characterized in that, The support plate is also provided with a push spring, which acts on the limiting link.

3. The easily maintainable and repairable electricity metering box according to claim 1, characterized in that, The support plate is fixedly connected to the movable plate.

4. The easily maintainable and repairable electricity metering box according to claim 1, characterized in that, An adjusting leg is slidably disposed inside the supporting leg, and a positioning bead is slidably disposed on the adjusting leg. The supporting leg has a recess corresponding to the positioning bead.

5. The easily maintainable and repairable electricity metering box according to claim 1, characterized in that, The power box has ventilation holes on its side.

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