Modular glass reinforced plastic electric energy metering box

Abstract

The utility model discloses modularization's glass reinforced plastic electric energy metering box, including two groups of symmetrical side plates, two groups of respectively located two groups of side plates upper and lower both ends cover layer subassembly and two groups respectively located two groups of side plate before and after mainboard, form a six closed box, and the box has the inner frame for fixing the electrical equipment in, cover layer subassembly divides into two layers, and inside has fastening portion, under the pressure of fastening portion, two layers of parts will the lateral edge of side plate clamping. Compared with prior art, the utility model has the advantages that the prior art metering box adopts bolt fixation, needs to punch installation, and the hole position and bolt are easy to be corroded and form the water seepage point, and the design realizes the whole closure through the modularization subassembly, does not need to punch, and eliminates the water vapor invasion path from the root; the hook portion of cover layer subassembly and side plate buckling, and the extrusion of mainboard and side plate and cover layer subassembly also forms the seal, and the internal electrical equipment obtains the reliable protection in the humid environment, reduces the short circuit, the corrosion or the failure risk.

Description

Technical Field

[0001] This utility model relates to the field of power metering equipment technology, and in particular to a modular fiberglass power metering box. Background Technology

[0002] Electricity metering boxes are key equipment installed at the user end or in public areas of the power system. Their main function is to provide a safe, reliable, and easy-to-manage and maintain installation environment for electricity metering devices and related supporting equipment.

[0003] The patent with publication number CN222365953U, entitled "A Modular Electricity Metering Box," mentions that electrical equipment is fixed by a mounting plate inside the metering box, which makes equipment installation and replacement cumbersome. However, in reality, already installed electrical equipment does not require multiple replacements, and the improvements proposed in the aforementioned patent actually increase the cost of the electricity metering box, making it unsuitable for practical environments.

[0004] It's also worth noting that fiberglass reinforced plastic (FRP) is widely used in electricity metering boxes due to its unique physical and chemical properties, making it an ideal alternative to traditional metals and engineering plastics. FRP boasts excellent corrosion resistance, superior electrical insulation, and is lightweight yet high-strength. However, currently, modular FRP units are typically secured using bolts and nuts. Bolts and nuts are far less corrosion-resistant than FRP, and the mounting location makes it easy for moisture to seep into the electricity metering box. This moisture can negatively impact the internal electrical equipment, often causing damage, including short circuits, arcing, corrosion, and oxidation. Utility Model Content

[0005] In view of the above-mentioned problems, the technical problem to be solved by this utility model is to provide a modular fiberglass electricity metering box.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a modular fiberglass electricity metering box, including two sets of symmetrical side plates, two sets of cover components located at the upper and lower ends of the two sets of side plates respectively, and two sets of main plates located at the front and rear of the two sets of side plates respectively, forming a six-sided closed box, and the box has an inner frame for fixing electrical equipment.

[0007] The cover assembly consists of two layers, upper and lower, and has a fastening part inside. Under the pressure of the fastening part, the upper and lower layers clamp the lateral edge of the side plate.

[0008] Both the front and rear mainboards have locking levers on their opposite sides. Rotating the locking levers engages with the inner frame, causing the front and rear mainboards to press against the longitudinal edges of the two sets of side panels.

[0009] A further preferred embodiment of this utility model is: hooks are integrally formed on the upper and lower transverse edges of the side plate, and the cover assembly includes a cover layer one and a cover layer two, which are located on the inner and outer sides of the hooks respectively, and the fastening part is located between the cover layer one and the cover layer two.

[0010] The upper part of the cover layer near both sides has a protruding edge, which is fastened to the inside of the hook, and there is a sealing layer between the two.

[0011] Both sides of the cover layer have integral folded edges, which are attached to the outside of the hook, and there is also a sealing layer between the two.

[0012] A further preferred embodiment of this utility model is: both sides of the cover layer have integral folded edges, which are perpendicular to the cover layer and fit against the inner side of the side panel.

[0013] A further preferred embodiment of this utility model is: a groove 1 is provided on the opposite surfaces of the cover layer 1 and the cover layer 2, and groove 2 extending inwards is provided on the inner walls of both sides of the groove 1, and the thickness of the groove 2 is less than the thickness of the groove 1.

[0014] The fastening part includes two sets of inserts that are respectively embedded in the grooves of the cover layer 1 and the cover layer 2. Each insert has a clamp extending into the groove on both sides. An inner spring is fixed between the upper and lower inserts and is in a stretched state.

[0015] A further preferred embodiment of this utility model is: the two cross sections of the folded edge are triangular, and the apex of the triangle fits into the junction of the side plate and the hook.

[0016] A further preferred embodiment of this utility model is: each of the two sets of side panels has at least two sets of folding parts on the inward side, and the inner frame is sandwiched between the two sets of folding parts;

[0017] Both the front and rear main boards have at least four sets of locking tongue levers. The four sets of locking tongue levers are in pairs, located at the upper and lower ends of the inner frame respectively, and are fastened to the inner frame. The front and rear main boards are pressed against the longitudinal edge of the side panel and the outer edge of the cover assembly through the fastening of the locking tongue levers. The pressing position of the front and rear main boards has a sealing layer.

[0018] A further preferred embodiment of this utility model is: the locking tongue lever is L-shaped, consisting of two parts, a horizontal part and a vertical part. The horizontal part is cylindrical and contacts the edge of the inner frame, while the vertical part is flat and used to fasten to the inner side of the inner frame.

[0019] A further preferred embodiment of this utility model is: the longitudinal part of the locking tongue lever has a protruding end made of a layer of metal material, the protruding end is semi-circular, and its end face is flat, so that it is pressed against the inner frame when fastened.

[0020] A further preferred embodiment of this utility model is: the rear side of the motherboard edge has an integral lug, and the lug is used to insert a bolt.

[0021] A further preferred embodiment of this utility model is that the inner frame is made of metal and is foldable.

[0022] Compared with the prior art, the advantages of this utility model are:

[0023] 1. Traditional metering boxes are fixed with bolts, which requires drilling for installation. The holes and bolts are prone to corrosion, forming water seepage points. This design achieves overall sealing through modular components, eliminating the need for drilling and eliminating the path of moisture intrusion at the source. The hooks of the cover assembly and the side panels are fastened together, and the main board is squeezed against the side panels and the cover assembly to form a seal. The internal electrical equipment is reliably protected in a humid environment, reducing the risk of short circuits, corrosion or failure.

[0024] 2. All parts of this application that come into contact with the outside world are made of fiberglass, which reduces the frequency of maintenance or replacement due to corrosion.

[0025] 3. The side panels, cover components, and main board are all independent modules that can be assembled by simple snap-fit ​​or latching operations without the need for special tools. Except for the key-operated latch lever, it is convenient for inspecting and maintaining internal equipment. The latch lever requires a key to rotate, and the main board can only be removed before unlocking to prevent unauthorized opening. Attached Figure Description

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be regarded as a limitation on the scope of the present invention. In addition, unless otherwise specified, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the motherboard separation structure at the front end of this utility model;

[0029] Figure 3 This utility model Figure 2 A magnified schematic diagram of the structure of part A in the diagram;

[0030] Figure 4 This is a schematic diagram of the cover layer component and the internal frame structure of this utility model;

[0031] Figure 5 This is a partially exploded structural diagram of the capping component of this utility model;

[0032] Figure 6 This is a schematic diagram of the locking tongue lever and the inner frame fastening structure of this utility model;

[0033] Figure 7 This is a schematic diagram of the locking tongue lever structure of this utility model.

[0034] In the diagram: 1. Side panel; 11. Hook; 12. Folding part; 2. Cover assembly; 21. Cover layer one; 22. Folded edge one; 23. Protruding edge; 24. Cover layer two; 25. Folded edge two; 3. Main board; 31. Lug; 4. Locking tongue lever; 41. Protruding end; 5. Inner frame; 6. Fastening part; 61. Groove one; 62. Groove two; 63. Insert; 64. Clamping plate; 65. Inner spring. Detailed Implementation

[0035] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0036] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0037] This embodiment mainly describes a modular fiberglass electricity metering box. Please refer to [link / reference]. Figures 1-7 Specifically, the main function of current electricity metering boxes is to protect the internal electrical equipment from wind and rain. They are generally made of metal, which corrodes over time, leading to moisture intrusion and significant damage to the internal electrical equipment. While fiberglass electricity metering boxes are now available, they are still often fixed with bolts. Bolts require drilling, and they are also susceptible to corrosion, further contributing to moisture intrusion. Therefore, a modular fiberglass electricity metering box is proposed, such as... Figures 1-5 As shown, it includes two sets of symmetrical side panels 1, two sets of cover assemblies 2 located at the upper and lower ends of the two sets of side panels 1 respectively, and two sets of main panels 3 located at the front and rear of the two sets of side panels 1 respectively, forming a six-sided enclosed box. The box has an inner frame 5 for fixing electrical equipment.

[0038] The cover assembly 2 is divided into upper and lower layers and has a fastening part 6 inside. Under the pressure of the fastening part 6, the upper and lower layers clamp the lateral edge of the side plate 1.

[0039] Both the front and rear main boards 3 have locking levers 4 on their opposite sides. Rotating the locking levers 4 engages with the inner frame 5, thereby pressing the front and rear main boards 3 against the longitudinal edges of the two sets of side panels 1.

[0040] Specifically, two sets of symmetrical side panels 1, two sets of cover components 2, and two sets of main boards 3 form an energy metering box. The two sets of side panels 1 are the left and right sides, the two sets of cover components 2 are the top and bottom sides, and the two sets of main boards 3 are the front and back sides. The modular structure makes it easy to disassemble or install the energy metering box. During installation or disassembly, a key is needed to control the rotation of the locking tongue lever 4 to achieve a certain degree of protection. It should be noted that the two sets of symmetrical side panels 1, the two sets of cover components 2, and the two sets of main boards 3 are all made of existing fiberglass materials.

[0041] like Figure 3 As shown, the side panel 1 has hooks 11 integrally formed on the upper and lower horizontal edges. The cover assembly 2 includes a first cover 21 and a second cover 24. The first cover 21 and the second cover 24 are located on the inner and outer sides of the hooks 11, respectively. The fastening part 6 is located between the first cover 21 and the second cover 24.

[0042] The upper end of the cover layer 21 near both sides has a protruding edge 23, which is fastened to the inside of the hook part 11, and there is a sealing layer between the two.

[0043] Both sides of the cover layer 24 have integral folded edges 25, which are attached to the outside of the hook part 11, and there is also a sealing layer between the two.

[0044] Cover layer 1 21 and cover layer 24 clamp the hook 11 to achieve a limiting effect, preventing cover layer 1 21 and cover layer 24 from being removed upwards. There are sealing layers between the protruding edge 23 and the hook 11 and between the folded edge 25 and the hook 11 to achieve a sealing effect. It should be noted that the sealing layer is a common rubber sealing layer.

[0045] like Figure 3 As shown, both sides of the cover layer 21 are integrally formed with a folded edge 22, which is perpendicular to the cover layer 21 and fits against the inner side of the side plate 1.

[0046] Specifically, the folded edge 22 is perpendicular to the cover layer 21 and fits against the inner side of the side plate 1, thus providing a supporting function. This ensures that the cover layer 21 and the cover layer 24 are perpendicular to the side plate 1, making it difficult for them to deform even under external force.

[0047] like Figures 4-5 As shown, both the first cover layer 21 and the second cover layer 24 have grooves 61 on their opposite sides. The inner walls of the two sides of the first cover layer 61 have grooves 62 extending inward. The thickness of the second groove 62 is less than the thickness of the first groove 61.

[0048] The fastening part 6 includes two sets of inserts 63 that are respectively embedded in the groove 61 of the cover layer 21 and the cover layer 24. Both sides of the insert 63 have a clamp 64 extending into the groove 62. An inner spring 65 is fixed between the upper and lower inserts 63. The inner spring 65 is in a stretched state.

[0049] Specifically, to facilitate the installation and removal of cover layer 1 21 and cover layer 24, and to allow for transport in a stacked manner, cover layer 1 21 and cover layer 24 are plate-shaped, with a slidable and detachable fastening part 6 between them. The fastening part 6 is used to stretch cover layer 1 21 and cover layer 24 so that cover layer 1 21 and cover layer 24 can be relatively close. When the edges of cover layer 1 21 and cover layer 24 engage with hook part 11, a fastening force is provided, allowing cover layer 1 21 and cover layer 24 to clamp hook part 11 from the inside and outside. In addition, when the inner spring 65 becomes loose or fatigued, the entire fastening part 6 can be replaced, making the operation convenient. It should be noted that the fastening part 6 located between cover layer 1 21 and cover layer 24 is minimized from the influence of the external or internal environment.

[0050] like Figure 3 As shown, the cross-section of the second folded edge 25 is triangular, and the apex of the triangle is attached to the junction of the side plate 1 and the hook 11.

[0051] Specifically, the second fold 25 can form a transition with the side panel 1. The transition part of the two is in a close fit with only a gap. Therefore, it is difficult to pry open the second fold 25 under the action of external force, thus achieving a protective function.

[0052] like Figures 4-7 As shown, each of the two sets of side panels 1 has at least two sets of folding parts 12 on the inward side, and the inner frame 5 is sandwiched between the two sets of folding parts 12.

[0053] Both the front and rear mainboards 3 have at least four sets of locking tongue levers 4. The four sets of locking tongue levers 4 are in pairs and are located at the upper and lower ends of the inner frame 5 respectively, and are fastened to the inner frame 5. The front and rear mainboards 3 are pressed against the longitudinal edge of the side panel 1 and the outer edge of the cover assembly 2 through the fastening of the locking tongue levers 4. The pressing position of the front and rear mainboards 3 has a sealing layer.

[0054] Specifically, the two sets of folding parts 12 abut against the upper and lower ends of the inner frame 5 respectively. When installing and removing the inner frame 5, the inner frame 5 is pulled along the two sets of folding parts 12, so that the inner frame 5 is installed inside the energy metering box. The inner frame 5 located between the two sets of folding parts 12 will also move along them. Therefore, under the action of the four sets of locking tongue levers 4 on the front and rear main boards 3, the four sets of locking tongue levers 4 on both sides stretch the inner frame 5 in the front and rear directions to support it, making the inner frame 5 stable. At the same time, it should be noted that it also seals the front and rear main boards 3 with the two sets of side plates 1 and the two sets of cover components 2, achieving a dual function. It should be noted that the inward-facing side of the front and rear main boards 3 has a sealing layer, which is a rubber sealing layer. The sealing layer is squeezed with the two sets of side plates 1 and the two sets of cover components 2 to form a seal, so that the entire interior of the energy metering box is in a sealed state.

[0055] It should be noted that when the front motherboard 3 is opened, the inner frame 5 remains in place under the support of the folding part 12. Subsequently, the front motherboard 3 is re-covered and locked by the locking tongue lever 4, thus stabilizing the structure.

[0056] like Figures 6-7 As shown, the latch lever 4 is L-shaped, consisting of two parts: a horizontal part and a vertical part. The horizontal part is cylindrical and contacts the edge of the inner frame 5, while the vertical part is flat and is used to fasten to the inside of the inner frame 5.

[0057] Specifically, the latch lever 4 is L-shaped. Rotating the latch lever 4 causes the longitudinal part to rotate and engage with the inner frame 5. It should be noted that the latch lever 4 is a commonly used drawer opening and closing structure. It should also be noted that the transverse part is cylindrical and contacts the edge of the inner frame 5. Its function is to limit the main board 3 and prevent it from deviating.

[0058] like Figure 7 As shown, the longitudinal part of the latch lever 4 has a protruding end 41 made of metal. The protruding end 41 is semi-circular and its end face is flat. When it is fastened, it is pressed against the inner frame 5.

[0059] The protruding end 41 of the longitudinal part of the locking tongue lever 4 is used to press against the inner frame 5. When the longitudinal part of the locking tongue lever 4 rotates, the arc surface of the protruding end 41 presses against the inner frame 5 to ensure that it does not get stuck against the edge of the inner frame 5. Then it is pressed to the inside of the inner frame 5, so that the flat surface of the protruding end 41 presses against the inner frame 5, thereby stretching the inner frame 5 outward and fixing the main board 3.

[0060] like Figure 1 and Figure 2 As shown, the rear mainboard 3 has an integral lug 31 along its edge. The lug 31 is used to insert bolts. The lug 31 on the mainboard 3 is an existing structure. The electricity metering box is fixed by inserting bolts into it.

[0061] The inner frame 5 is made of metal and is foldable. The foldability of the inner frame 5 is existing technology; it is foldable by adjusting the direction of the hinge. Figure 6 As shown, the inner frame 5 is hinged on both sides, so it can be folded. It should be noted that after the inner frame 5 is unfolded, it is pulled towards the front and back sides by the locking tongue lever 4, so that the inner frame 5 is in a tensioned state. The inner frame 5 undergoes a certain deformation in the tensioned state, but the inner frame 5 is made of metal and has a restorative force, so it achieves a taut state.

[0062] Working principle: First, the cover components 2 on the upper and lower sides of the two sets of side panels 1 are fastened to the two sets of side panels 1 through cover layer one 21 and cover layer two 24, and are also fastened by fastening parts 6, achieving a seal between them. The main boards 3 on the front and rear sides are fastened to the inner frame 5 through locking tongue levers 4, achieving a sealing effect. This achieves a seal without drilling holes in the electricity metering box, preventing moisture from entering. Second, cover layer one 21 and cover layer two 24 are set in two layers, achieving a double-layer seal and isolating direct solar heat to a certain extent.

[0063] With the front and rear main panels 3 fixed in place, cover layer 1 21 and cover layer 24 can only be removed by sliding them in the front and back direction. Therefore, they are fixed in place, requiring the front main panel 3 to be opened to remove them outwards. Opening the main panel 3 requires a key to drive the locking tongue lever 4, forming a closed enclosure that requires a key to open. Furthermore, because the cross-section of the second folded edge 25 is triangular, and the apex of the triangle fits snugly at the junction of the side panel 1 and the hook 11, ... Figure 3 As shown, it is difficult to pry open the second fold 25 from the outside, thus automatically achieving a protective function.

[0064] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0065] The modular fiberglass electricity metering box provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand this utility model and its core ideas. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A modular fiberglass electricity metering box, characterized in that, It includes two sets of symmetrical side panels, two sets of cover assemblies located at the upper and lower ends of the two sets of side panels respectively, and two sets of main panels located at the front and rear of the two sets of side panels respectively, forming a six-sided enclosed box, with an inner frame inside the box for fixing electrical equipment. The cover assembly consists of two layers, upper and lower, and has a fastening part inside. Under the pressure of the fastening part, the upper and lower layers clamp the lateral edge of the side plate. Both the front and rear mainboards have locking levers on their opposite sides. Rotating the locking levers engages with the inner frame, causing the front and rear mainboards to press against the longitudinal edges of the two sets of side panels.

2. The modular fiberglass electricity metering box according to claim 1, characterized in that, The side panel has hooks integrally formed on the upper and lower horizontal edges. The cover assembly includes cover layer one and cover layer two. Cover layer one and cover layer two are located on the inner and outer sides of the hooks, respectively. The fastening part is located between cover layer one and cover layer two. The upper part of the cover layer near both sides has a protruding edge, which is fastened to the inside of the hook, and there is a sealing layer between the two. Both sides of the cover layer have integral folded edges, which are attached to the outside of the hook, and there is also a sealing layer between the two.

3. The modular fiberglass electricity metering box according to claim 2, characterized in that, Both sides of the cover layer have a folded edge, which is perpendicular to the cover layer and fits against the inner side of the side panel.

4. The modular fiberglass electricity metering box according to claim 2, characterized in that, Both the first and second cover layers have grooves on their opposite sides. The inner walls of the first and second cover layers have grooves extending inward. The thickness of the second groove is less than that of the first groove. The fastening part includes two sets of inserts that are respectively embedded in the grooves of the cover layer 1 and the cover layer 2. Each insert has a clamp extending into the groove on both sides. An inner spring is fixed between the upper and lower inserts and is in a stretched state.

5. The modular fiberglass electricity metering box according to claim 2, characterized in that, The two cross sections of the folded edge are triangular, and the apex of the triangle fits into the junction of the side plate and the hook.

6. The modular fiberglass electricity metering box according to claim 1, characterized in that, Both sets of side panels have at least two sets of folding parts on the inward side, and the inner frame is sandwiched between the two sets of folding parts; Both the front and rear main boards have at least four sets of locking tongue levers. The four sets of locking tongue levers are in pairs, located at the upper and lower ends of the inner frame respectively, and are fastened to the inner frame. The front and rear main boards are pressed against the longitudinal edge of the side panel and the outer edge of the cover assembly through the fastening of the locking tongue levers. The pressing position of the front and rear main boards has a sealing layer.

7. The modular fiberglass electricity metering box according to claim 6, characterized in that, The latch lever is L-shaped, consisting of two parts: a horizontal part and a vertical part. The horizontal part is cylindrical and contacts the edge of the inner frame, while the vertical part is flat and is used to fasten to the inside of the inner frame.

8. The modular fiberglass electricity metering box according to claim 7, characterized in that, The longitudinal part of the latch lever has a protruding end made of metal. The protruding end is semi-circular and its end face is flat. When it is engaged, it is pressed against the inner frame.

9. The modular fiberglass electricity metering box according to claim 1, characterized in that, The rear edge of the motherboard has a lug, which is used to insert a bolt.

10. The modular fiberglass electricity metering box according to claim 1, characterized in that, The inner frame is made of metal and is foldable.

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