Combined smart power grid skid-mounted ring main unit with composite bearing capacity

The combination design of skid-mounted ring main units solves the problems of complicated construction and inconvenient transportation when upgrading the circuit of ring main units, and realizes flexible space adjustment and efficient installation process.

CN120955480APending Publication Date: 2025-11-14ANHUI SUKAI ELECTRIC CO LTD
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Patent Information

Application Number
CN202511242441.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-02
Publication Date
2025-11-14

AI Technical Summary

Technical Problem

When upgrading the circuit, existing outdoor ring main units require removal and replacement with larger cabinets, which is complicated and inconvenient to transport, resulting in low replacement efficiency and affecting production and daily life.

Method used

The modular smart grid skid-mounted ring main unit adopts composite load-bearing structure. It achieves flexible splicing and sealing of the ring main unit through components such as skid connecting blocks, guide sliders, connecting guide rods and locking limit bolts. It can adjust the cabinet space according to needs, which facilitates transportation and installation.

Benefits of technology

It enables flexible adjustment and combination of ring network cabinets, reduces transportation difficulties, improves installation efficiency, reduces manpower requirements, and adapts to the needs of different usage scenarios.

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Abstract

The invention discloses a combined smart power grid skid-mounted ring main unit with composite force bearing, and relates to the technical field of ring main units. The device comprises a mounting prying seat, a ring main unit body, a splicing assembly and a sealing assembly, when the space of a single ring main unit body is insufficient, a connecting guide rod is placed in a connecting supporting groove, another group of prying seat connecting blocks move and are in sliding fit with the connecting guide rod, a sealing door plate is moved out of a connecting sealing frame, and the ring main unit body is in contact with the adjacent ring main unit body; the movable sealing partition plates are moved out of the partition plate mounting grooves to be in contact with the adjacent movable sealing partition plates, so that the two ring main unit bodies are communicated, the locking limiting bolts of the other splicing assemblies move, the positions of the prying seat connecting blocks of the other splicing assemblies are fixed, and the two ring main unit bodies form a cabinet body with a larger space; according to the assembly type ring main unit, the number of the installed cabinet bodies can be increased according to the required space, the ring main unit bodies can be disassembled and installed according to the use condition, adjustment is flexible, and replacement of ring main unit bodies of different specifications is avoided.
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Description

Technical Field

[0001] This invention belongs to the field of fertilizer application equipment technology, and specifically relates to a composite load-bearing combined smart grid skid-mounted ring main unit. Background Technology

[0002] A ring main unit is an electrical device consisting of a set of power transmission and distribution equipment (high-voltage switchgear) housed in a metal or non-metal insulated cabinet or assembled into a modular ring main unit. Its core components are load switches and fuses. It has advantages such as simple structure, small size, low price, improved power supply parameters and performance, and enhanced power supply safety. It is widely used in substations and prefabricated substations in load centers such as urban residential areas, high-rise buildings, large public buildings, and factories.

[0003] Existing outdoor ring main units are usually manufactured as a single unit with different sizes and specifications. During transportation, the transport vehicle is usually selected according to the size of the ring main unit, which makes transportation inconvenient. Moreover, when the circuit is upgraded and the size of the original ring main unit can no longer meet the usage requirements, it is usually necessary to remove and replace it with a larger ring main unit. The construction is complicated, the replacement efficiency is low, and it affects production and daily life. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: The present invention is a composite load-bearing combined smart grid skid-mounted ring main unit, including a mounting skid, a ring main unit body, a splicing assembly, and a sealing assembly. The splicing assembly includes a skid connecting block, a guide slider, a connecting guide rod, and a locking limit bolt. The ring main unit body is fixedly installed to the skid connecting block. A sliding connecting groove is provided on the bottom surface of the skid connecting block. The guide slider slides into the sliding connecting groove and is fixedly connected to the mounting skid. A connecting threaded hole is provided on the side of the skid connecting block. The locking limit bolt is threadedly installed in the threaded connecting hole. Connecting support grooves are provided at both ends of the skid connecting block. The connecting threaded hole passes through the sliding connecting groove and the connecting support groove.

[0005] When the locking limit bolt can pass through the guide slider, the mounting pry bar and the pry bar connecting block are fixedly connected. When multiple ring network cabinets are assembled, the connecting guide rod is located in the connecting support groove of the adjacent ring network cabinet. When the ring network cabinet contacts the adjacent ring network cabinet, the locking limit bolt can pass through the connecting guide rod, so that the ring network cabinet and the connecting guide rod are fixedly connected.

[0006] The sealing assembly includes a connecting sealing frame, a sealing door panel, a movable sealing partition, and several sealing limiting units. The connecting sealing frame is fixedly installed on both sides of the ring network cabinet. The sealing door panel is disposed in the connecting sealing frame. A partition mounting groove is opened on the side of the connecting sealing frame. The movable sealing partition is slidably installed in the partition mounting groove.

[0007] When the sealing door panel moves into the connecting sealing frame, the sealing limiting unit can fix the sealing door panel to the connecting sealing frame. When assembling, the sealing door panel moves out of the connecting sealing frame, and the ring network cabinet contacts the adjacent ring network cabinet. The movable sealing partition can move out of the partition mounting groove and contact the adjacent movable sealing partition, so that the two ring network cabinets are connected.

[0008] Preferably, the splicing assembly further includes a connecting movable block, a rotating hook-shaped rod, a rotating gear, a rotating damper, a fixed rack, a connecting threaded rod, a screw mounting block, a rack mounting rod, and a fixed connecting column. The connecting movable block is slidably mounted on the side of the skid-mounted connecting block. A rotating mounting groove is provided on the top surface of the connecting movable block. One end of the rotating hook-shaped rod is rotatably mounted in the rotating mounting groove. The rotating gear is rotatably mounted on the side of the connecting movable block. The rotating shaft of the rotating gear passes through the connecting movable block and is fixedly connected to the rotating hook-shaped rod. The rotating damper is fixedly sleeved on the rotating shaft of the rotating gear and is fixedly connected to the connecting movable block. The rack mounting rod is fixedly mounted on the side of the skid-mounted connecting block. The fixed rack is fixedly mounted to the rack mounting rod. The screw mounting block is fixedly mounted on the side of the skid-mounted connecting block. A screw rotating hole is provided on the side of the screw mounting block. The connecting threaded rod is threaded into the screw rotating hole. The connecting threaded rod is movably connected to the connecting movable block. The fixed connecting column is fixedly mounted on the side of the skid-mounted connecting block.

[0009] Preferably, the sealing and limiting unit includes a horizontal connecting rod, a partition linkage block, a partition connecting plate, a linkage screw, a linkage mounting block, a mounting baffle, and a door panel connecting block. The door panel connecting block is fixedly connected to the sealing door panel. The linkage mounting block is fixedly mounted on the side of the sealing door panel. A linkage screw hole is provided on the side of the linkage mounting block. The linkage screw is threaded into the linkage screw hole. A linkage mounting opening is provided on the side of the door panel connecting block. The horizontal connecting rod is slidably engaged with the linkage mounting opening. The linkage screw is slidably engaged with the horizontal connecting rod. A plurality of linkage grooves are provided on the side of the connecting sealing frame. The linkage grooves communicate with the partition mounting grooves. The partition connecting plate is slidably mounted in the linkage grooves. The partition linkage block is fixedly connected to the partition connecting plate. A limiting linkage opening is provided on the side of the partition linkage block. A connection limiting opening is provided on the top surface of the horizontal connecting rod. The mounting baffle is fixedly connected to the partition linkage block.

[0010] Preferably, the sealing and limiting unit further includes a vertical limiting wedge, a limiting spring, a limiting adjustment plate, and a sliding damper. An adjustment mounting groove is provided on the side of the sealing door panel, and the adjustment mounting groove communicates with the linkage groove. The vertical limiting wedge and the limiting adjustment plate are both slidably installed in the adjustment mounting groove. The bottom end of the limiting spring is fixedly installed on the top surface of the vertical limiting wedge, and the top end of the limiting spring is fixedly installed on the bottom surface of the limiting adjustment plate. The sliding damper is fixedly installed on the side of the connecting sealing frame, and the output end of the sliding damper is fixedly connected to the limiting adjustment plate.

[0011] Preferably, the sealing and limiting unit further includes a sliding rod, a spring mounting plate, and a compression spring. A sliding circular hole is provided on the side of the connecting sealing frame. The sliding rod passes through the sliding circular hole and is fixedly connected to the partition connecting plate. The spring mounting plate is fixedly installed on one end of the sliding rod. The compression spring is sleeved on the sliding rod. One end of the compression spring is fixedly connected to the spring mounting plate, and the other end is fixedly connected to the connecting sealing frame.

[0012] Preferably, the guide slider has a plurality of limiting holes on its side, and the connecting guide rod has a plurality of connecting holes on its side. The limiting holes and the connecting holes have the same diameter as the locking limiting bolt.

[0013] Preferably, sealing strips are fixedly provided at the positions where the ring network cabinet contacts the adjacent ring network cabinet on both sides, as well as on the sides of the movable sealing partition.

[0014] Preferably, the rotating gear can engage with the fixed rack when it moves.

[0015] Preferably, one end of the rotating hook-shaped rod is round hook-shaped, and when the rotating hook-shaped rod is in a horizontal state, the center of the adjacent fixed connecting column and the center of the round hook are at the same horizontal height.

[0016] Preferably, a door handle is fixedly installed on the side of the sealed door panel.

[0017] Compared with the prior art, the present invention provides a composite load-bearing combined smart grid skid-mounted ring main unit, which has the following beneficial effects:

[0018] 1. When the space of a single ring main unit is insufficient, the locking limit bolt moves to release the fixation of the pry bar connecting block, adjusts the position of the pry bar connecting block, places the connecting guide rod in the connecting support groove, the other set of pry bar connecting blocks moves and slides with the connecting guide rod, the sealing door panel moves out of the connecting sealing frame, the ring main unit contacts the adjacent ring main unit, the moving sealing partition moves out of the partition mounting groove and contacts the adjacent moving sealing partition, so that the two ring main units are connected, the locking limit bolts of other splicing components move, so that the position of the pry bar connecting block of other splicing components is fixed, so that the two ring main units form a larger unit. The assembled ring main unit can install the number of units according to the required space, and can disassemble and install the ring main unit according to the usage, flexibly adjust, and avoid replacing ring main units of different specifications;

[0019] 2. The installation pry bar position is fixed, the pry bar connecting block moves, the position of the pry bar connecting block at the top of the installation pry bar is adjusted, the locking limit bolt moves through the guide slider, the position of the pry bar connecting block is fixed, when the ring main unit is installed, the sealing door panel moves into the connecting sealing frame, the sealing limit unit can fix the sealing door panel and the connecting sealing frame, so that the ring main unit forms a sealed space, and the installation is completed. The small size of a single ring main unit makes it easy to transport and install, reducing the difficulty of transportation.

[0020] 3. When two ring main units approach each other, the connecting threaded rod rotates, causing the connecting moving block to move. The moving connecting block then drives the rotating gear to move. During the movement of the rotating gear, it meshes with the fixed rack and rotates, causing the rotating hook rod to rotate from a vertical to a horizontal position. The moving connecting block then drives the rotating hook rod to move, and the rotating hook rod contacts the fixed connecting column of the adjacent assembly and pulls the skid connecting block of the adjacent assembly to move, making the two skid connecting blocks contact. Because sealing strips are fixedly installed on both sides of the ring main unit and the side of the movable sealing partition, when fixing the position of the added ring main unit, it is necessary to manually push the added ring main unit so that it can be fixed with the locking limit bolts. This usually requires multiple installers. Rotating the hook rod to contact the fixed connecting column of the adjacent assembly and pulling the skid connecting block of the adjacent assembly to move, making the two skid connecting blocks contact, allows one worker to complete the installation, reducing manpower and improving work efficiency.

[0021] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is one of the overall three-dimensional structural schematic diagrams of the present invention;

[0024] Figure 2 This is the second schematic diagram of the overall three-dimensional structure of the present invention;

[0025] Figure 3 This is the third schematic diagram of the overall three-dimensional structure of the present invention;

[0026] Figure 4 For the present invention Figure 3 A schematic diagram of the structure at point A;

[0027] Figure 5 This is the fourth schematic diagram of the overall three-dimensional structure of the present invention;

[0028] Figure 6 For the present invention Figure 5 A schematic diagram of the structure at point B;

[0029] Figure 7 This is one of the partial three-dimensional structural schematic diagrams of the present invention;

[0030] Figure 8 For the present invention Figure 7 A schematic diagram of the structure at point C;

[0031] Figure 9 This is a second partial three-dimensional structural schematic diagram of the present invention;

[0032] Figure 10 For the present invention Figure 9 A schematic diagram of the structure at point D;

[0033] Figure 11 This is the third partial three-dimensional structural schematic diagram of the present invention;

[0034] Figure 12 For the present invention Figure 11 A schematic diagram of the structure at point E.

[0035] The attached diagram lists the components represented by each number as follows:

[0036] 11. Install the skid mount; 12. Ring main unit; 1. Splicing assembly; 101. Skid mount connecting block; 102. Guide slider; 103. Connecting guide rod; 104. Locking limit bolt; 105. Connecting moving block; 106. Rotating hook rod; 107. Rotating gear; 108. Rotation damper; 109. Fixed rack; 110. Connecting threaded rod; 111. Screw mounting block; 112. Rack mounting rod; 113. Fixed connecting column; 2. Sealing assembly; 201. Connecting sealing frame; 202. Sealing door panel; 203. Moving... 204. Dynamic sealing partition; 205. Partition mounting groove; 21. Door handle; 21. Sealing limit unit; 2101. Horizontal connecting rod; 2102. Partition linkage block; 2103. Partition connecting plate; 2104. Linkage screw; 2105. Linkage mounting block; 2106. Mounting baffle; 2107. Door panel connecting block; 2108. Vertical limit wedge; 2109. Limiting spring; 2110. Limiting adjustment plate; 2111. Sliding damper; 2112. Sliding rod; 2113. Spring mounting plate; 2114. Compression spring. Detailed Implementation

[0037] The technical solutions of the embodiments of the invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the invention.

[0038] In the description of this invention, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the invention.

[0039] For examples, please refer to Figure 1 - Figure 12This embodiment discloses a composite load-bearing combined smart grid skid-mounted ring main unit, including a mounting skid 11, a ring main unit body 12, a splicing component 1, and a sealing component 2. The splicing component 1 includes a skid connecting block 101, a guide slider 102, a connecting guide rod 103, and a locking limit bolt 104. The ring main unit body 12 is fixedly installed with the skid connecting block 101. A sliding connection groove is opened on the bottom surface of the skid connecting block 101. The guide slider 102 is slidably engaged with the sliding connection groove. The guide slider 102 is fixedly connected with the mounting skid 11. A connecting threaded hole is opened on the side of the skid connecting block 101. The locking limit bolt 104 is threadedly installed in the threaded connection hole. A connecting support groove is opened at both ends of the skid connecting block 101. The connecting threaded hole passes through the sliding connection groove and the connecting support groove.

[0040] When the locking limit bolt 104 can pass through the guide slider 102, the mounting pry bar 11 is fixedly connected to the pry bar connecting block 101. When multiple ring network cabinets 12 are assembled, the connecting guide rod 103 is located in the connecting support groove of the adjacent ring network cabinet 12. When the ring network cabinet 12 contacts the adjacent ring network cabinet 12, the locking limit bolt 104 can pass through the connecting guide rod 103, so that the ring network cabinet 12 is fixedly connected to the connecting guide rod 103.

[0041] The sealing assembly 2 includes a connecting sealing frame 201, a sealing door panel 202, a movable sealing partition 203, and several sealing limiting units 21. The connecting sealing frame 201 is fixedly installed on both sides of the ring network cabinet 12. The sealing door panel 202 is set inside the connecting sealing frame 201. A partition mounting groove 204 is opened on the side of the connecting sealing frame 201. The movable sealing partition 203 is slidably installed in the partition mounting groove 204.

[0042] When the sealing door panel 202 moves into the connecting sealing frame 201, the sealing limiting unit 21 can fix the sealing door panel 202 to the connecting sealing frame 201. When assembling, the sealing door panel 202 moves out of the connecting sealing frame 201, and the ring network cabinet 12 contacts the adjacent ring network cabinet 12. The movable sealing partition 203 can move out of the partition mounting groove 204 and contact the adjacent movable sealing partition 203, so that the two ring network cabinets 12 are connected.

[0043] In use, the position of the mounting pry bar 11 is fixed, and the pry bar connecting block 101 moves to adjust the position of the pry bar connecting block 101 at the top of the mounting pry bar 11. The locking limit bolt 104 moves through the guide slider 102, and the position of the pry bar connecting block 101 is fixed. When installing the ring main unit 12, the sealing door panel 202 moves into the connecting sealing frame 201. The sealing limit unit 21 enables the sealing door panel 202 to be fixedly connected to the connecting sealing frame 201, so that the ring main unit 12 forms a sealed space, completing the installation. When the space of a single ring main unit 12 is insufficient, other ring main units 12 are added for combined installation. The locking limit bolt 104 moves to release the fixation of the pry bar connecting block 101. The position of the pry bar connecting block 101 is adjusted, and the connecting guide rod 103 is placed in the connecting support groove. The locking limit bolt 104 moves through the guide slider 102 and the connecting guide rod 103, and another set of pry bar connections... Block 101 moves and slides into contact with connecting guide rod 103, sealing door panel 202 moves out of connecting sealing frame 201, ring network cabinet 12 contacts adjacent ring network cabinet 12, moving sealing partition 203 moves out of partition mounting groove 204 and contacts adjacent moving sealing partition 203, so that the two ring network cabinets 12 are connected, locking limit bolts 104 of other splicing components 1 move, so that the position of prying block 101 of other splicing components 1 is fixed, and the connecting sealing frame 201 of the non-connected side of ring network cabinet 12 of other splicing components 1 is put into sealing door panel 202, so that the two ring network cabinets 12 form a cabinet with a larger space. The assembled ring network cabinet 12 can be installed in more space as needed, and the ring network cabinet 12 can be disassembled and installed according to the usage, flexibly adjusted, avoiding the need to replace ring network cabinets 12 of different specifications, and the smaller ring network cabinet 12 is convenient for transportation, reducing transportation difficulty.

[0044] Please see Figure 1 - Figure 12The splicing assembly 1 also includes a connecting movable block 105, a rotating hook-shaped rod 106, a rotating gear 107, a rotation damper 108, a fixed rack 109, a connecting threaded rod 110, a screw mounting block 111, a rack mounting rod 112, and a fixed connecting post 113. The connecting movable block 105 is slidably mounted on the side of the pry bar connecting block 101. A rotating mounting groove is provided on the top surface of the connecting movable block 105. One end of the rotating hook-shaped rod 106 is rotatably mounted in the rotating mounting groove. The rotating gear 107 is rotatably mounted on the side of the connecting movable block 105. The rotating shaft of the rotating gear 107 passes through the connecting movable block 105 and the rotating hook-shaped rod 106. The rotary damper 108 is fixedly sleeved on the rotating shaft of the rotating gear 107. The rotary damper 108 is fixedly connected to the connecting moving block 105. The rack mounting rod 112 is fixedly installed on the side of the skid connecting block 101. The fixed rack 109 is fixedly installed on the rack mounting rod 112. The screw mounting block 111 is fixedly installed on the side of the skid connecting block 101. The screw mounting block 111 has a screw rotation hole on its side. The connecting threaded rod 110 is threadedly engaged with the screw rotation hole. The connecting threaded rod 110 is movably connected to the connecting moving block 105. The fixed connecting column 113 is fixedly installed on the side of the skid connecting block 101.

[0045] In use, when two ring network cabinets 12 approach each other, the connecting threaded rod 110 rotates, causing the connecting moving block 105 to move. The moving connecting block 105 then drives the rotating gear 107 to move. During its movement, the rotating gear 107 meshes with the fixed rack 109 and rotates, causing the rotating hook rod 106 to rotate from a vertical to a horizontal position. The moving connecting block 105 then drives the rotating hook rod 106 to move. The rotating hook rod 106 contacts the fixed connecting post 113 of the adjacent assembly and pulls the pry bar connecting block 101 of the adjacent assembly to move, causing the two pry bar connecting blocks 101 to contact each other. Sealing strips are fixedly installed on both sides of the cabinet 12 and the sides of the movable sealing partition 203. When fixing the position of the added ring network cabinet 12, it is necessary to manually push the added ring network cabinet 12 so that the added ring network cabinet 12 can be fixed with the locking limit bolt 104. This installation usually requires multiple installers to rotate the hook rod 106 to contact the fixed connecting column 113 of the adjacent assembly component and pull the pry bar connecting block 101 of the adjacent assembly component to move so that the two pry bar connecting blocks 101 contact each other. This allows one worker to complete the installation, reducing manpower and improving work efficiency.

[0046] Please see Figure 1 - Figure 12The sealing and limiting unit 21 includes a horizontal connecting rod 2101, a partition linkage block 2102, a partition connecting plate 2103, a linkage screw 2104, a linkage mounting block 2105, a mounting baffle 2106, and a door panel connecting block 2107. The door panel connecting block 2107 is fixedly connected to the sealing door panel 202. The linkage mounting block 2105 is fixedly installed on the side of the sealing door panel 202. A linkage screw hole is provided on the side of the linkage mounting block 2105, and the linkage screw 2104 is threaded into the linkage screw hole. A linkage mounting port is provided on the side of the door panel connecting block 2107. The horizontal connecting rod 2101 is slidably engaged with the connecting rod mounting port, the connecting screw 2104 is slidably engaged with the horizontal connecting rod 2101, the connecting sealing frame 201 has several connecting grooves on its side, the connecting grooves are connected to the partition mounting groove 204, the partition connecting plate 2103 is slidably installed in the connecting groove, the partition connecting block 2102 is fixedly connected with the partition connecting plate 2103, the partition connecting block 2102 has a limit connecting port on its side, the horizontal connecting rod 2101 has a connection limit port on its top surface, and the mounting baffle 2106 is fixedly connected with the partition connecting block 2102.

[0047] When in use, when the sealing door panel 202 contacts the mounting baffle 2106, the linkage screw 2104 rotates and drives the horizontal connecting rod 2101 to move. The horizontal connecting rod 2101 moves through the limit linkage port and enters the linkage groove. At this time, the sealing door panel 202 and the moving sealing partition 203 are linked in the horizontal direction.

[0048] Please see Figure 1 - Figure 12 The sealing and limiting unit 21 also includes a vertical limiting wedge 2108, a limiting spring 2109, a limiting adjustment plate 2110, and a sliding damper 2111. The sealing door panel 202 has an adjustment mounting groove on its side, which is connected to the linkage groove. The vertical limiting wedge 2108 and the limiting adjustment plate 2110 are both slidably installed in the adjustment mounting groove. The bottom end of the limiting spring 2109 is fixedly installed on the top surface of the vertical limiting wedge 2108, and the top end of the limiting spring 2109 is fixedly installed on the bottom surface of the limiting adjustment plate 2110. The sliding damper 2111 is fixedly installed on the side of the connecting sealing frame 201, and the output end of the sliding damper 2111 is fixedly connected to the limiting adjustment plate 2110.

[0049] In use, when the horizontal connecting rod 2101 moves towards the ring main unit 12, it pushes the limit adjustment plate 2110 upward, causing the vertical limit wedge 2108 to move upward. During the movement of the horizontal connecting rod 2101, it contacts the inclined surface of the vertical limit wedge 2108, and the horizontal connecting rod 2101 presses against the vertical limit wedge 2108, so that the bottom surface of the vertical limit wedge 2108 contacts the top surface of the horizontal connecting rod 2101. The horizontal connecting rod 2101 continues to move, and the vertical limit wedge 2108 enters the connection limit opening. When the vertical limit wedge 2108 enters the connection limit opening, it pushes the limit adjustment plate 2110 downward, so that the horizontal connecting rod 2101 does not contact the inclined surface of the vertical limit wedge 2108, thus completing the limit fixation of the horizontal connecting rod 2101.

[0050] Please see Figure 1 - Figure 12 The sealing and limiting unit 21 also includes a sliding rod 2112, a spring mounting plate 2113, and a compression spring 2114. A sliding round hole is provided on the side of the connecting sealing frame 201. The sliding rod 2112 passes through the sliding round hole and is fixedly connected to the partition connecting plate 2103. The spring mounting plate 2113 is fixedly installed on one end of the sliding rod 2112. The compression spring 2114 is sleeved on the sliding rod 2112. One end of the compression spring 2114 is fixedly connected to the spring mounting plate 2113, and the other end is fixedly connected to the connecting sealing frame 201.

[0051] When in use, when the horizontal connecting rod 2101 moves toward the ring network cabinet 12, it drives the partition connecting plate 2103 to move. The movement of the partition connecting plate 2103 drives the spring mounting plate 2113 to move, compressing the spring 2114 and stretching it.

[0052] Please see Figure 1 - Figure 12 The guide slider 102 has several limiting holes on its side, and the connecting guide rod 103 has several connecting holes on its side. The limiting holes and connecting holes have the same diameter as the locking limiting bolt 104.

[0053] Please see Figure 1 - Figure 12 Sealing strips are fixedly installed on both sides of the ring network cabinet 12 where it contacts the adjacent ring network cabinet 12, as well as on the side of the movable sealing partition 203.

[0054] When in use, the sealing strip can improve the sealing performance of the connection when the sides of adjacent ring network cabinets 12 and movable sealing partitions 203 come into contact with each other.

[0055] Please see Figure 1 - Figure 12 When the rotating gear 107 moves, it can mesh with the fixed rack 109.

[0056] Please see Figure 1 - Figure 12 The rotating hook rod 106 has one end in the shape of a round hook, and when the rotating hook rod 106 is in a horizontal state, the center of the adjacent fixed connecting column 113 and the center of the round hook are at the same horizontal height.

[0057] Please see Figure 1 - Figure 12 A door handle 205 is fixedly installed on the side of the sealed door panel 202.

[0058] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0059] The preferred embodiments of the invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A composite load-bearing modular smart grid skid-mounted ring main unit, comprising a mounting skid, a ring main unit body, splicing components, and a sealing component, characterized in that, The splicing assembly includes a pry bar connecting block, a guide slider, a connecting guide rod, and a locking limit bolt. The ring main unit is fixedly installed with the pry bar connecting block. The bottom surface of the pry bar connecting block has a sliding connection groove, and the guide slider slides into the sliding connection groove. The guide slider is fixedly connected to the mounting pry bar. The side of the pry bar connecting block has a connecting threaded hole, and the locking limit bolt is threaded into the threaded connection hole. Both ends of the pry bar connecting block have connecting support grooves. When multiple ring main units are assembled, the connecting guide rod is located in the connecting support groove of the adjacent ring main unit. When the ring main unit contacts the adjacent ring main unit, the locking limit bolt can pass through the connecting guide rod, so that the ring main unit is fixedly connected to the connecting guide rod. The sealing assembly includes a connecting sealing frame, a sealing door panel, a movable sealing partition, and several sealing limiting units. The connecting sealing frame is fixedly installed on both sides of the ring main unit. The connecting sealing frame has a partition mounting groove on its side, and the movable sealing partition is slidably installed in the partition mounting groove. When the sealing door panel moves into the connecting sealing frame, the sealing limiting units can fix the sealing door panel to the connecting sealing frame. When assembled, the sealing door panel moves out of the connecting sealing frame, and the ring main unit contacts the adjacent ring main unit. The movable sealing partition can move out of the partition mounting groove and contact the adjacent movable sealing partition, so that the two ring main units are connected.

2. The composite load-bearing combined smart grid skid-mounted ring main unit according to claim 1, characterized in that, The splicing assembly further includes a connecting movable block, a rotating hook-shaped rod, a rotating gear, a rotational damper, a fixed rack, a connecting threaded rod, a screw mounting block, a rack mounting rod, and a fixed connecting post. The connecting movable block is slidably mounted on the side of the skid-mounted connecting block. A rotating mounting groove is provided on the top surface of the connecting movable block. One end of the rotating hook-shaped rod is rotatably mounted in the rotating mounting groove. The rotating gear is rotatably mounted on the side of the connecting movable block. The rotating shaft of the rotating gear passes through the connecting movable block and is fixedly connected to the rotating hook-shaped rod. The rotational damper is fixedly sleeved on the rotating shaft of the rotating gear and is fixedly connected to the connecting movable block. The rack mounting rod is fixedly mounted on the side of the skid-mounted connecting block. The fixed rack is fixedly mounted to the rack mounting rod. The screw mounting block is fixedly mounted on the side of the skid-mounted connecting block. A screw rotation hole is provided on the side of the screw mounting block. The connecting threaded rod is threaded into the screw rotation hole. The connecting threaded rod is movably connected to the connecting movable block. The fixed connecting post is fixedly mounted on the side of the skid-mounted connecting block.

3. The composite load-bearing combined smart grid skid-mounted ring main unit according to claim 2, characterized in that, The sealing and limiting unit includes a horizontal connecting rod, a partition linkage block, a partition connecting plate, a linkage screw, a linkage mounting block, a mounting baffle, and a door panel connecting block. The door panel connecting block is fixedly connected to the sealing door panel. The linkage mounting block is fixedly mounted on the side of the sealing door panel. A linkage screw hole is provided on the side of the linkage mounting block, and the linkage screw is threaded into the linkage screw hole. A linkage mounting port is provided on the side of the door panel connecting block, and the horizontal connecting rod is slidably engaged with the linkage mounting port. The linkage screw is slidably engaged with the horizontal connecting rod. A plurality of linkage grooves are provided on the side of the connecting sealing frame, and the linkage grooves communicate with the partition mounting grooves. The partition connecting plate is slidably mounted in the linkage grooves. The partition linkage block is fixedly connected to the partition connecting plate. A limiting linkage port is provided on the side of the partition linkage block. A connection limiting port is provided on the top surface of the horizontal connecting rod. The mounting baffle is fixedly connected to the partition linkage block.

4. The composite load-bearing combined smart grid skid-mounted ring main unit according to claim 3, characterized in that, The sealing and limiting unit also includes a vertical limiting wedge, a limiting spring, a limiting adjustment plate, and a sliding damper. An adjustment mounting groove is provided on the side of the sealing door panel, and the adjustment mounting groove is connected to the linkage groove. The vertical limiting wedge and the limiting adjustment plate are slidably installed in the adjustment mounting groove. The bottom end of the limiting spring is fixedly installed on the top surface of the vertical limiting wedge, and the top end of the limiting spring is fixedly installed on the bottom surface of the limiting adjustment plate. The sliding damper is fixedly installed on the side of the connecting sealing frame, and the output end of the sliding damper is fixedly connected to the limiting adjustment plate.

5. A composite load-bearing combined smart grid skid-mounted ring main unit according to claim 4, characterized in that, The sealing and limiting unit also includes a sliding rod, a spring mounting plate, and a compression spring. A sliding circular hole is provided on the side of the connecting sealing frame. The sliding rod passes through the sliding circular hole and is fixedly connected to the partition connecting plate. The spring mounting plate is fixedly installed on one end of the sliding rod. The compression spring is sleeved on the sliding rod. One end of the compression spring is fixedly connected to the spring mounting plate, and the other end is fixedly connected to the connecting sealing frame.

6. A composite load-bearing combined smart grid skid-mounted ring main unit according to claim 5, characterized in that, The guide slider has several limiting holes on its side, and the connecting guide rod has several connecting holes on its side. The limiting holes and the connecting holes have the same diameter as the locking limiting bolt.

7. A composite load-bearing combined smart grid skid-mounted ring main unit according to claim 6, characterized in that, Sealing strips are fixedly installed at the contact points between the ring network cabinets on both sides and the adjacent ring network cabinets, as well as on the sides of the movable sealing partition.

8. A composite load-bearing combined smart grid skid-mounted ring main unit according to claim 7, characterized in that, The rotating gear can mesh with the fixed rack when it moves.

9. A composite load-bearing combined smart grid skid-mounted ring main unit according to claim 8, characterized in that, One end of the rotating hook-shaped rod is round hook-shaped, and when the rotating hook-shaped rod is in a horizontal state, the center of the adjacent fixed connecting column and the center of the round hook are at the same horizontal height.

10. A composite load-bearing combined smart grid skid-mounted ring main unit according to claim 8, characterized in that, A door handle is fixedly installed on the side of the sealed door panel.