Lightweight ring main unit convenient to disassemble

Abstract

The utility model discloses a kind of light-weight ring main unit convenient to disassemble including base, C-type plate assembly and ceiling, and the bottom of base is equipped with multiple symmetrical distribution's first locking mechanism corresponding C-type plate assembly.The top of C-type plate assembly is detachably connected with ceiling, and the bottom surface of ceiling is equipped with multiple symmetrical distribution's second locking mechanism.C-type plate includes side plate and back plate, and both sides of back plate are equipped with side plate, and side plate and back plate are detachably connected, and the side of side plate away from back plate is equipped with detachable door.The ring main unit can be quickly assembled or disassembled by locking or unlocking first locking mechanism and second locking structure, which greatly improves the convenience of ring main unit disassembly.

Description

Technical Field

[0001] This utility model relates to the field of ring main unit technology, and in particular to a lightweight ring main unit that is easy to assemble and disassemble. Background Technology

[0002] Ring main units are key equipment in power distribution systems, primarily used for ring network power supply, branch line protection, and power distribution in medium-voltage distribution networks. Their core functions are to improve power supply reliability, enable flexible wiring, and provide fault isolation capabilities. Currently, the top cover, body, and other components of ring main units on the market are generally connected using bolts or welding. The disadvantage of bolted connections is that assembly workers must frequently tighten or loosen bolts in confined spaces using specialized tools. Welding requires individual welding of each connection point, and disassembly is also inconvenient. Furthermore, the welded areas require rust prevention treatment and painting. These methods necessitate workers using specialized tools and performing numerous complex operations to assemble or disassemble the ring main unit, making the entire process time-consuming, labor-intensive, and inefficient. Utility Model Content

[0003] To overcome the technical problem of difficult disassembly and assembly of ring network boxes in the prior art, this utility model provides a lightweight ring network box that is easy to disassemble and assemble.

[0004] To achieve the above objectives, this utility model proposes a lightweight ring main unit that is easy to assemble and disassemble, comprising a base, a C-shaped plate assembly, and a roof. The base has multiple symmetrically distributed first locking mechanisms at the bottom corresponding to the C-shaped plate assembly. The top of the C-shaped plate assembly is detachably connected to the roof, and the bottom surface of the roof has multiple symmetrically distributed second locking mechanisms. The C-shaped plate includes side plates and a rear plate. Side plates are provided on both sides of the rear plate, and the side plates are detachably connected to the rear plate. A detachable door is provided on the side of the side plate away from the rear plate.

[0005] The side panels are provided with sliding grooves corresponding to the rear panel and the side of the door. The rear panel and the door are respectively provided with a first guide bar and a second guide bar corresponding to the sliding grooves. The bottom end face of the sliding groove is in contact with the bottom end face of the first guide bar and the second guide bar, and the top end face of the sliding groove is higher than the top end face of the first guide bar and the second guide bar.

[0006] Furthermore, the base has a first positioning groove on the side near the C-shaped plate assembly, and the bottom of the C-shaped plate assembly is embedded in the first positioning groove. The base has multiple symmetrically distributed second positioning grooves along the length of the first positioning groove, and the side plate and the rear plate are respectively provided with a first positioning block and a second positioning block at the positions corresponding to the second positioning grooves. The base is provided with a first locking mechanism at the position corresponding to the second positioning groove.

[0007] Furthermore, the first locking mechanism includes a vertical shaft and a locking plate. One end of the vertical shaft is fixedly connected to the base, and the locking plate is rotatably connected to the vertical shaft and can rotate to the top of the second positioning groove.

[0008] Furthermore, the bottom surfaces of both the first and second positioning grooves are provided with elastic pads, and the top surfaces of the elastic pads are in contact with the C-shaped plate assembly.

[0009] Furthermore, a hinged connecting plate is provided on the side of the cabinet door near the side panel, and a second guide bar is provided on the side of the connecting plate away from the cabinet door.

[0010] Furthermore, the top is equipped with positioning strips at the positions corresponding to the door and the back panel, with each end of the positioning strip embedded in the groove of the different side panels.

[0011] Furthermore, each end of the positioning strip is equipped with a second locking mechanism, and the slide groove is provided with positioning holes corresponding to the positions of the second locking mechanisms. The second locking mechanism includes a positioning pin and a compression spring. The end of the positioning strip is provided with an inner groove, and a positioning pin that matches the positioning hole is provided in the inner groove. A compression spring is provided between the bottom of the inner groove and the positioning pin. The top of the slide groove is chamfered corresponding to the position of the positioning pin.

[0012] Furthermore, the side panel has multiple evenly distributed through holes, and a handle is provided on the side panel.

[0013] Furthermore, the back panel is made of profiled sheet, and multiple ribs are provided in the thickness direction of the back panel. The gaps between the multiple ribs are filled with thermal insulation material, and multiple evenly distributed reinforcing ribs are provided on the back panel.

[0014] The beneficial effects of this utility model are as follows: the lower and upper parts of the C-shaped plate assembly are detachably connected to the base and the roof through multiple first locking mechanisms and multiple second locking mechanisms, respectively. The installation and disassembly of the ring network box can be achieved by locking or unlocking the first and second locking mechanisms. Furthermore, the C-shaped plate assembly can be further assembled from side panels, a door, and a rear panel, improving the convenience of installation and disassembly of the ring network box. Attached Figure Description

[0015] 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.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is an exploded view of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the base of this utility model;

[0019] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0020] Figure 5 This is a schematic diagram of the side plate of this utility model;

[0021] Figure 6 for Figure 5 Enlarged view of point B in the middle;

[0022] Figure 7 This is a schematic diagram of the structure of the rear plate of this utility model;

[0023] Figure 8 for Figure 7 Enlarged view of point C in the middle;

[0024] Figure 9 This is a partial cross-sectional schematic diagram of the ceiling of this utility model;

[0025] Figure 10 for Figure 9 Enlarged view of point D in the middle;

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Base; 2. C-shaped plate assembly; 3. Canopy; 11. Support leg; 12. First positioning groove; 13. First locking mechanism; 111. Fixing rod; 112. Telescopic rod; 121. Second positioning groove; 122. Elastic pad; 131. Vertical shaft; 132. Clamping plate; 21. Side plate; 211. Door; 212. Connecting plate; 213. Slide groove; 214. Through opening; 215. Handle; 216. First positioning block; 2131. Chamfer; 2132. Positioning hole; 22. Rear plate; 221. Second guide bar; 222. Second positioning block; 223. Reinforcing rib; 224. Rib plate; 2241. Gap; 31. Lifting ring; 32. Positioning strip; 33. Second locking mechanism; 331. Positioning pin; 321. Inner groove; 332. Compression spring. Detailed Implementation

[0028] 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.

[0029] 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.

[0030] like Figure 1-10As shown in the diagram, this utility model proposes a lightweight ring main unit that is easy to assemble and disassemble, comprising a base 1, a C-shaped plate assembly 2, and a roof 3. The base 1 has multiple symmetrically distributed first locking mechanisms 13 at the bottom corresponding to the C-shaped plate assembly 2. The top of the C-shaped plate assembly 2 is detachably connected to the roof 3, and the bottom surface of the roof 3 has multiple symmetrically distributed second locking mechanisms 33. By locking or unlocking the various first locking mechanisms 13 and second locking mechanisms 33, the roof and C-shaped plate assembly 2, or the base 1 and C-shaped plate assembly 2, can be installed or removed, enabling rapid assembly and disassembly of the entire ring main unit. The mechanical forms of the first locking mechanisms 13 and second locking mechanisms 33 include, but are not limited to, common mechanical locking devices such as quick-release bolts, spring clips, and eccentric wheel locks. The symmetrical distribution of the first locking mechanisms 13 on the base 1 and the symmetrical distribution of the second locking mechanisms 33 on the roof 3 ensures even stress distribution between the C-shaped plate assembly 2 and the base 1 and roof 3, which helps improve the overall stability of the ring main unit structure. The C-shaped plate assembly 2 includes a side plate 21 and a rear plate 22. The rear plate 22 has side plates 21 on both sides, and the side plates 21 are detachably connected to the rear plate 22. The side plates 21 have a detachable door 211 on the side away from the rear plate 22. By further disassembling the C-shaped plate assembly 2, the detachability of the ring main unit is improved.

[0031] The base 1 has a first positioning groove 12 on the side near the C-shaped plate assembly 2, and the bottom of the C-shaped plate assembly 2 is embedded in the first positioning groove 12. Through the cooperation of the first positioning groove 12 and the C-shaped plate assembly 2, the C-shaped plate assembly 2 can be quickly and vertically positioned on the base 1, avoiding errors from manual assembly and improving the assembly accuracy between the C-shaped plate assembly 2 and the base 1. The base 1 has multiple symmetrically distributed second positioning grooves 121 along the length of the first positioning groove 12. The side plate 21 and the rear plate 22 are respectively provided with a first positioning block 216 and a second positioning block 222 at positions corresponding to the second positioning grooves 121. Through the cooperation of the first positioning block 216 and the second positioning block 222 with the second positioning grooves 121, the side plate 21 and the rear plate 22 can be quickly positioned on the base 1, improving assembly efficiency. The base 1 has a first locking mechanism 13 at the position corresponding to the second positioning groove 121. The first locking mechanism 13 includes a vertical shaft 131 and a clamping plate 132. One end of the vertical shaft 131 is fixedly connected to the base 1, and the clamping plate 132 is rotatably connected to the vertical shaft 131 and can rotate to the top of the second positioning groove 121. When it is necessary to fix the C-shaped plate assembly 2 to the base 1, the first positioning block 216 and the second positioning block 222 are both embedded in the second positioning groove 121, and then the clamping plate 132 is rotated to the top of the second positioning groove 121, that is, to be in contact with the first positioning block 216 and the second positioning block 222. At this time, the C-shaped plate assembly 2 is completely fixed to the base 1. The C-shaped plate assembly 2 and the base 1 can be installed or removed without additional fastening tools (such as wrenches or screwdrivers). Elastic pads 122 are provided on the bottom surface of the first positioning groove 12 and the second positioning groove 121, and the top surface of the elastic pads 122 is in contact with the C-shaped plate assembly 2. By setting the elastic pad 122, the sealing performance of the C-shaped plate assembly 2 and the base 1 can be improved. Simultaneously, the elastic deformation force of the elastic pad 122 ensures a tighter fit between the C-shaped plate assembly 2 and the base 1, preventing loosening due to assembly errors. The side of the base 1 away from the C-shaped plate assembly 2 has multiple symmetrically distributed support feet 11, through which the ring network box contacts the bottom surface. Each support foot 11 includes a fixed rod 111 and a telescopic rod 112. One end of the fixed rod 111 is integrated with the base 1, and the other end is threadedly connected to the telescopic rod 112. The telescopic rod 112, through its threaded engagement with the fixed rod 111, can move axially along the fixed rod 111, thereby allowing independent adjustment of the height of each support foot 11. This enables the ring network box to be stably placed on uneven ground, effectively improving its environmental adaptability.

[0032] Side panels 21 are provided with sliding grooves 213 on the sides corresponding to the rear panel 22 and the door 211. The rear panel 22 and the door 211 are respectively provided with first guide bars and second guide bars 221 corresponding to the sliding grooves 213. Through the cooperation of the first guide bars and the sliding grooves 213, two different side panels 21 can be quickly assembled onto the rear panel 22. This enables the rapid assembly or disassembly of the C-shaped panel assembly 2, which is beneficial to improving the efficiency of assembly and disassembly of the C-shaped panel assembly 2. The side of the door 211 near the side panel 21 is provided with a hinged connecting plate 212, and the side of the connecting plate 212 away from the door 211 is provided with a second guide bar 221. The door 211 can be installed onto the side panel 21 by combining the connecting plate 212 with the side panel 21, and the connecting plate 212 also facilitates the removal of the door 211 from the side panel 21. The bottom end face of the slide groove 213 is in contact with the bottom end face of the first guide bar and the second guide bar 221, and the top end face of the slide groove 213 is higher than the top end face of the first guide bar and the second guide bar 221, so that the slide groove 213 has a certain amount of space relative to the top of the first guide bar and the top of the second guide bar 221. The canopy 3 is provided with positioning strips 32 at the positions corresponding to the door 211 and the back panel 22. The two ends of the positioning strips 32 are respectively embedded in the space at the top of the slide groove 213 of the different side panels 21. Through the cooperation between the two ends of the positioning strips 32 and the slide groove 213, the canopy can be quickly positioned onto the C-shaped panel assembly 2. The two ends of the positioning strips 32 are provided with second locking mechanisms 33, and the slide groove 213 is provided with positioning holes 2132 at the positions corresponding to the second locking mechanisms 33. The second locking mechanism 33 includes a positioning pin 331 and a compression spring 332. The end of the positioning strip 32 has an inner groove 321, within which a positioning pin 331 is positioned to engage with the positioning hole 2132. A compression spring 332 is positioned between the bottom of the inner groove 321 and the positioning pin 331. The top of the slide groove 213 has a chamfer 2131 corresponding to the position of the positioning pin 331. During the process of inserting both ends of the positioning strip 32 into the slide groove 213, the positioning pin 331 contacts the chamfer 2131 and gradually applies pressure to the compression spring 332, causing the positioning pin 331 to retract into the inner groove 321. After the positioning strip 32 is fully inserted into the slide groove 213, the positioning pin 331 aligns with the empty hole. At this point, the compression spring 332 has a tendency to elastically recover, and the positioning pin 331 inserts into the positioning hole 2132. Through the engagement of the positioning pin 331 and the positioning hole 2132, the canopy is fixedly connected to the C-shaped panel assembly 2. If the roof needs to be removed, simply apply external force to the positioning pin 331 and retract the positioning pin 331 into the inner groove 321 to remove the roof from above the C-shaped plate assembly 2. The roof 3 has multiple symmetrically distributed lifting rings 31, and threaded holes for engaging the lifting rings 31. When the ring network box needs to be hoisted as a whole, screw the lifting rings 31 into the threaded holes, and then connect the lifting rings 31 to the hoisting equipment using slings.

[0033] The side plate 21 has multiple evenly distributed through holes. These through holes improve the air permeability and heat dissipation of the side plate 21, while reducing its weight, making it lightweight. Users can easily move, install, or disassemble the side plate 21 using the handle 215 on it. The rear plate 22 is made of profiled sheet, with multiple ribs 224 along its thickness. The profiled sheet is cold-formed to enhance its mechanical properties, reducing weight while maintaining strength. It is lightweight, has high bending and compressive strength, ensuring the stability and deformation resistance of the ring main unit structure, and facilitating overall lightweight design, aligning with the trend of lightweighting in modern power equipment. The gaps between the multiple ribs 224 are filled with thermal insulation material (such as polyurethane foam, rock wool, aerogel, etc.). This insulation material protects the rear plate 22 from external high or low temperature environments (such as direct sunlight in summer or cold in winter), preventing drastic temperature fluctuations of the internal components of the ring main unit, making it particularly suitable for extreme climates. At the same time, it reduces condensation caused by temperature differences between the inside and outside of the enclosure, preventing water vapor from damaging electrical components. The rear plate 22 is provided with multiple evenly distributed reinforcing ribs 223. The reinforcing ribs 223 can effectively improve the deformation resistance of the rear plate 22 without increasing its thickness, making the rear plate 22 lighter and improving the convenience of maintaining the ring main unit.

[0034] The working principle of this utility model is as follows: By cooperating with the annular groove and the second guide bar 221, side plates 21 are installed on both sides of the rear plate 22, and the grooved C-shaped plate assembly 2 is assembled therefrom. Then, the C-shaped plate assembly 2 is fixedly connected to the base 1 by the first locking mechanism 13, and the canopy is fixed to the top of the C-shaped plate assembly 2 by the second locking mechanism 33, thus quickly completing the overall assembly of the ring network box.

[0035] 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. A lightweight ring main unit that is easy to assemble and disassemble, characterized in that, The device includes a base (1), a C-shaped plate assembly (2), and a canopy (3). The base (1) has multiple symmetrically distributed first locking mechanisms (13) at the bottom of the C-shaped plate assembly (2). The top of the C-shaped plate assembly (2) is detachably connected to the canopy (3). The bottom surface of the canopy (3) has multiple symmetrically distributed second locking mechanisms (33). The C-shaped plate includes a side plate (21) and a rear plate (22). The rear plate (22) has the side plate (21) on both sides. The side plate (21) is detachably connected to the rear plate (22). The side plate (21) has a detachable door (211) on the side away from the rear plate (22). The side panel (21) is provided with a sliding groove (213) on the side of the rear panel (22) and the box door (211). The rear panel (22) and the box door (211) are respectively provided with a first guide bar and a second guide bar (221) corresponding to the sliding groove (213). The bottom end face of the sliding groove (213) is in contact with the bottom end face of the first guide bar and the second guide bar (221). The top end face of the sliding groove (213) is higher than the top end face of the first guide bar and the second guide bar (221).

2. The lightweight ring main unit as described in claim 1, characterized in that, The base (1) has a first positioning groove (12) on the side near the C-shaped plate assembly (2), and the bottom of the C-shaped plate assembly (2) is embedded in the first positioning groove (12). The base (1) has a plurality of symmetrically distributed second positioning grooves (121) along the length of the first positioning groove (12). The side plate (21) and the rear plate (22) are respectively provided with a first positioning block (216) and a second positioning block (222) at the positions corresponding to the second positioning grooves (121). The base (1) is provided with a first locking mechanism (13) at the position corresponding to the second positioning grooves (121).

3. The lightweight ring main unit as described in claim 2, characterized in that, The first locking mechanism (13) includes a vertical shaft (131) and a locking plate (132); one end of the vertical shaft (131) is fixedly connected to the base (1), and the locking plate (132) is rotatably connected to the vertical shaft (131) and the locking plate (132) can be rotated to the top of the second positioning groove (121).

4. The lightweight ring main unit as described in claim 2, characterized in that, The bottom surfaces of the first positioning groove (12) and the second positioning groove (121) are provided with elastic pads (122), and the top surface of the elastic pads (122) is in contact with the C-shaped plate assembly (2).

5. The lightweight ring main unit as described in claim 1, characterized in that, The box door (211) has a hinged connecting plate (212) on the side near the side plate (21), and the connecting plate (212) has a second guide bar (221) on the side away from the box door (211).

6. The lightweight ring main unit as described in claim 5, characterized in that, The canopy (3) is provided with positioning strips (32) at the positions corresponding to the box door (211) and the back panel (22), and the two ends of the positioning strips (32) are respectively embedded in the grooves (213) of different side panels (21).

7. The lightweight ring main unit as described in claim 6, characterized in that, The positioning bar (32) is provided with the second locking mechanism (33) at both ends, and the slide groove (213) is provided with positioning holes (2132) at the positions corresponding to the second locking mechanism (33); the second locking mechanism (33) includes a positioning pin (331) and a compression spring (332); the end of the positioning bar (32) is provided with an inner groove (321); the inner groove (321) is provided with the positioning pin (331) that matches the positioning hole (2132); the bottom of the inner groove (321) and the positioning pin (331) are provided with the compression spring (332); the top of the slide groove (213) is provided with a chamfer (2131) at the position corresponding to the positioning pin (331).

8. The lightweight ring main unit as described in claim 1, characterized in that, The side plate (21) is provided with a plurality of evenly distributed through holes, and the side plate (21) is provided with a handle (215).

9. The lightweight ring main unit as described in claim 1, characterized in that, The material of the back plate (22) is a profiled plate. The back plate (22) has multiple ribs (224) in the thickness direction. The gaps between the multiple ribs (224) are filled with thermal insulation material. The back plate (22) has multiple evenly distributed reinforcing ribs (223).

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