An assembled high-voltage switch cabinet for classifying electronic components

Abstract

The application discloses an assembled high-voltage switch cabinet with classified and regular electronic components, and relates to the technical field of high-voltage switch cabinet equipment.The application solves the problems of complicated assembly process and low disassembly efficiency of the existing bolted cabinet body, and comprises an upper cabinet body, a middle cabinet body arranged below the upper cabinet body, and a lower cabinet body arranged below the middle cabinet body.The upper cabinet body, the middle cabinet body and the lower cabinet body can be assembled layer by layer.Wiring terminals are fixedly installed in the upper cabinet body, the middle cabinet body and the lower cabinet body.Guide rails are fixedly installed beside the wiring terminals.Assembly parts are fixedly installed around the top of the middle cabinet body and the lower cabinet body.Connection parts corresponding to the assembly parts are fixedly installed around the bottom of the upper cabinet body and the middle cabinet body.The application is provided with structures such as large-pitch rods, chucks and large-pitch sleeves, and the pitch screwing cooperation between layers is relied on to realize the modular assembly and adaptation of the cabinet body, so that the structural stability during the assembly of the high-voltage switch cabinet is ensured.

Description

Technical Field

[0001] This invention relates to the field of high-voltage switchgear equipment technology, specifically an assembled high-voltage switchgear with neatly categorized electronic components. Background Technology

[0002] High-voltage switchgear is a crucial electrical equipment used in power systems for power generation, transmission, distribution, and industrial and mining enterprises. It is primarily used for receiving, distributing, controlling, protecting, and measuring electrical energy. High-voltage switchgear with a rated voltage of not less than 35 kV is typically used in high-voltage transmission and distribution, substations, and power supply for large industrial and mining enterprises. The switchgear integrates circuit breakers, disconnect switches, grounding switches, instrument transformers, surge arresters, and protective measuring devices, achieving safe control and reliable operation of high-voltage circuits through proper electrical connections and insulation isolation.

[0003] Depending on their structural form and installation method, high-voltage switchgear can be classified into types such as complete sets, fixed, withdrawable, and assembled. Among them, assembled high-voltage switchgear is mainly composed of multiple standardized cabinets or functional units assembled together. It relies on the internal terminals, rails, and mounting brackets to complete the fixed installation, modular combination, and wiring layout of various electrical components. It features flexible structure, convenient configuration, easy expansion, and maintenance, and can meet the application needs of different power transmission and distribution systems for high-voltage power distribution and control equipment.

[0004] Currently, most modular high-voltage switchgear on the market uses a simple bolt-connection structure to complete the interlayer assembly. The overall assembly structure is simple, relying solely on simple thread locking to fix the cabinet. During assembly, manual alignment and locking are required individually, making the assembly process cumbersome, disassembly and assembly inefficient, and difficult to disassemble and maintain later. The vibration generated by long-term operation of the equipment can easily cause the threads to loosen and strip, and the cabinet connection position is prone to displacement and shaking, resulting in poor structural stability. The fixing method of the rear cabinet is even more cumbersome, and it is impossible to achieve multi-point synchronous locking and fixing, making disassembly and assembly time-consuming and labor-intensive.

[0005] Meanwhile, the internal components and cables of conventional switchgear lack a regular structural guide, and the lines are messy and tangled, which can easily lead to line wear and short circuit hazards. The safety, regularity and maintainability of the equipment cannot meet the current requirements of standardization, modularization and high stability of high-voltage power equipment.

[0006] Based on this, the present invention provides an assembled high-voltage switchgear with neatly categorized electronic components to solve the above problems. Summary of the Invention

[0007] In view of the above situation and to overcome the defects of the prior art, the present invention provides an assembled high-voltage switchgear with neatly classified electronic components. The present invention has a novel structure and ingenious design, and effectively solves the problems of cumbersome assembly process and low disassembly and assembly efficiency of existing bolt-assembled cabinets.

[0008] An assembled high-voltage switchgear with neatly categorized electronic components includes an upper cabinet, a middle cabinet below the upper cabinet, and a lower cabinet below the middle cabinet. The upper, middle, and lower cabinets can be assembled layer by layer. Wiring terminals are fixedly installed inside the upper, middle, and lower cabinets, and guide rails are fixedly installed beside the wiring terminals. Assembly components are fixedly installed around the top of the middle and lower cabinets, and connecting components corresponding to the assembly components are fixedly installed around the bottom of the upper and middle cabinets.

[0009] Preferably, the connector includes a large-pitch sleeve fixedly installed on the bottom surface of the upper cabinet and the middle cabinet;

[0010] The assembly includes a large-pitch rod that is rotatably mounted on the top of the middle cabinet and the lower cabinet and mates with a large-pitch sleeve. A chuck is fixedly fitted at the lower end of the large-pitch rod. The chuck has multiple circumferentially evenly distributed slots. A rotatably mounted locking block is provided next to the slot, and the locking block can be locked into the slot.

[0011] Preferably, a pressure plate is fixedly installed on one side of the card block, a pressure strip is slidably installed on the side of the pressure plate, and a pressure rod is slidably installed on one side of the pressure strip.

[0012] Preferably, a connecting rod is hinged to the upper end of the pressure rod, and a hinge block is hinged to the upper end of the connecting rod and installed on the upper cabinet and the middle cabinet.

[0013] Preferably, a lifting rod is fixedly installed on one side of the connecting rod, and a lifting groove corresponding to the lifting rod is opened at the upper end of the pressure strip.

[0014] Preferably, elastic clips are fixedly installed on both sides of the connecting rod, and elastic clamps corresponding to the elastic clips are fixedly installed on both sides of the hinge block and the pressure rod.

[0015] Preferably, the card block is fitted with an unlocking rod that is rotatably installed in the middle cabinet and the lower cabinet, and a knob is fixedly installed at the end of each unlocking rod.

[0016] Preferably, the upper cabinet, middle cabinet and lower cabinet are detached and installed with the same rear cabinet, the rear cabinet has a busbar compartment above it and a cable compartment below it.

[0017] Preferably, a fixing plate is fixedly installed at the rear of the upper cabinet, middle cabinet and lower cabinet, and each fixing plate has a plug-in hole. A rotating frame is rotatably installed on the rear cabinet, and the rotating frame has multiple inclined slots, in which plug-in rods are slidably installed.

[0018] Preferably, a handle is fixed to the rear of the rotating frame and placed inside the rear cabinet. The rotating frame has a locking groove, and a fixing frame corresponding to the locking groove is fixedly installed on the inner wall of the rear cabinet.

[0019] The present invention has the following technical effects:

[0020] 1. This invention incorporates structures such as large-pitch rods, chucks, and large-pitch sleeves, relying on pitch engagement and interlayer docking to achieve modular assembly and adaptation of the cabinet. It also uses slots to prevent loosening and locking between cabinet layers. Through layered and separate assembly, it adapts to on-site transportation and installation, and circumferential limiting and anti-rotation measures to complete the cabinet assembly and reinforcement, ensuring the structural stability of the high-voltage switchgear during assembly.

[0021] 2. This invention incorporates a pressure strip, elastic locking strip, and linkage structure, utilizing the characteristics of hinged adaptive folding and elastic posture limiting to achieve automatic alignment, self-locking reinforcement, and flexible fitting assembly of the layered cabinets during the assembly process. This ensures stable docking and locking during the layered assembly of high-voltage switchgear, and reliable assembly, reducing the problems of traditional switchgear such as integral welding that cannot be disassembled, easy loosening due to vibration, cumbersome assembly procedures, manual individual locking, and low efficiency of overall disassembly and maintenance. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 This is a schematic diagram of the overall assembly structure in this invention.

[0024] Figure 2 This is a schematic diagram of the assembly structure of the knob, rear cabinet and busbar compartment in this invention.

[0025] Figure 3 This is a schematic diagram of the assembly structure of the large-pitch sleeve, large-pitch rod, and chuck in this invention.

[0026] Figure 4 This is a schematic diagram of the assembly structure of the pressure bar, pressure rod, and connecting rod in this invention.

[0027] Figure 5 This is a schematic diagram of the assembly structure of the lifting groove, elastic clip, and elastic clamp in this invention.

[0028] Figure 6 This is a schematic diagram of the assembly structure of the busbar chamber, fixing plate and plug hole in this invention.

[0029] Figure 7 This is a schematic diagram of the assembly structure of the inclined slot, the plug-in rod, and the limiting block in this invention.

[0030] Figure 8 This is a schematic diagram of the assembly structure of the handle, locking groove and locking pin in this invention.

[0031] Figure label:

[0032] 1-Upper cabinet; 2-Middle cabinet; 3-Lower cabinet; 4-Terminal block; 5-Guide rail; 7-Large pitch sleeve; 8-Large pitch rod; 9-Chuck; 10-Card slot; 11-Card block; 12-Pressure plate; 13-Pressure strip; 14-Pressure rod; 15-Connecting rod; 16-Hinge block; 17-Lifting rod; 18-Lifting groove; 19-Elastic clip; 20-Elastic clamp; 21-Unlocking rod; 22-Knob; 23-Rear cabinet; 24-Busbar compartment; 25-Cable compartment; 26-Fixing plate; 27-Plug-in hole; 28-Rotating frame; 29-Angled slot; 30-Plug-in rod; 31-Limit block; 32-Handle; 33-Locking groove; 34-Fixing frame; 35-Locking pin. Detailed Implementation

[0033] The foregoing and other technical contents, features and effects of the present invention are described in conjunction with the appendix below. Figures 1 to 8 The detailed description of the embodiments will make this clear. All references to the following embodiments are made with reference to the accompanying drawings.

[0034] Exemplary embodiments of the present invention will now be described with reference to the accompanying drawings.

[0035] This invention relates to an assembled high-voltage switchgear with neatly categorized electronic components, comprising an upper cabinet 1, a middle cabinet 2 below the upper cabinet 1, and a lower cabinet 3 below the middle cabinet 2. The upper cabinet 1, middle cabinet 2, and lower cabinet 3 can be independently assembled layer by layer to form a complete main structure of the switchgear.

[0036] In the following description, unless it is necessary to specify a particular cabinet, the upper cabinet 1, the middle cabinet 2, and the lower cabinet 3 will be referred to as cabinets. The number of cabinets is not limited to upper cabinet 1, middle cabinet 2, and lower cabinet 3, and can be changed to 2 or more than 3 according to actual needs.

[0037] The upper cabinet 1, middle cabinet 2 and lower cabinet 3 are all equipped with terminal blocks 4 for wiring and current distribution. Each terminal block 4 is also equipped with a guide rail 5 for mounting and fixing various electronic components. The upper cabinet 2 and lower cabinet 3 are equipped with assembly parts for inter-cabinet connection and fixing. The upper cabinet 1 and middle cabinet 2 are equipped with connectors that correspond to and match the assembly parts. The alignment and stable assembly of the three cabinets are achieved through the cooperation of the connectors and the assembly parts.

[0038] In practical use, this device adopts a three-layer split modular cabinet structure as an example. Operators can separate the upper cabinet 1, middle cabinet 2, and lower cabinet 3 for separate transportation and handling according to the construction scene and transportation conditions, which effectively reduces the difficulty of transporting large cabinets. During on-site installation, the alignment and assembly can be completed layer by layer. The wiring terminals 4 set in the cabinet can realize the centralized connection and diversion of various control lines and power lines.

[0039] The matching guide rail 5 can provide installation points for various secondary electronic components and control elements, enabling the internal components of the cabinet to be arranged in zones and the wiring to be arranged in categories, completely solving the problems of chaotic component arrangement, messy cables, and inconvenient inspection and maintenance in traditional switch cabinets.

[0040] At the same time, by matching the connecting parts and assembly parts between the upper and lower cabinets, layer-by-layer assembly is achieved, avoiding the defects of the integral welded cabinet that cannot be disassembled and is difficult to disassemble and assemble.

[0041] As one embodiment, the connector includes a large-pitch sleeve 7 fixedly installed around the bottom surface of the upper cabinet 1 and the middle cabinet 2. The large-pitch sleeve 7 is vertically fixed at the bottom corner to ensure uniform force distribution. The assembly includes a large-pitch rod 8 rotatably installed around the top of the middle cabinet 2 and the lower cabinet 3 via bearings. The installation position of the large-pitch rod 8 corresponds to that of the large-pitch sleeve 7. The external thread structure of the large-pitch rod 8 matches the internal thread structure of the large-pitch sleeve 7 and can be threadedly installed. Due to the large pitch, when the large-pitch sleeve 7 and the large-pitch rod 8 are engaged, the large-pitch sleeve 7 can make the large-pitch rod 8 rotate.

[0042] A chuck 9 is fixedly fitted at the lower end of the large pitch rod 8, rotating synchronously with the large pitch rod 8. The chuck 9 has multiple slots 10 evenly distributed along the circumference on its disc body. Each side of the chuck 9 has a rotatably mounted locking block 11. The locking block 11 is rotatably mounted on the cabinet and can rotate and engage with the slot 10 to achieve circumferential positioning and fixation of the chuck 9.

[0043] In practical use, during the cabinet layer assembly process, the locking block 11 is first lifted from the slot 10. The large-pitch sleeve 7 at the bottom of the upper cabinet is aligned with the large-pitch rod 8 at the top of the lower cabinet, and then they are joined downwards. The large-pitch rod 8 is gradually screwed into the large-pitch sleeve 7. During the downward assembly process, the large-pitch sleeve 7 drives the large-pitch rod 8 to rotate. The large-pitch engagement achieves vertical fixation of the upper and lower cabinets, completing the initial locking and positioning between the cabinet layers. After positioning, the locking block 11 falls back into the slot 10 to lock the chuck 9. At this time, the two adjacent cabinets are locked in the vertical direction. This structure solves the problem of loosening and stripping of traditional threaded connections due to long-term vibration from equipment operation. It is also quick and convenient to install. The upper cabinet can be installed directly from top to bottom. The large-pitch engagement provides double limiting through circumferential locking.

[0044] It should be noted that large pitch refers to a relatively large thread spacing, similar to an arc-shaped inclined groove or block fit. When the block moves within the inclined groove, it will push the body of the inclined groove to rotate.

[0045] As an example, a pressure plate 12 is fixedly installed on the other side of the card block 11. The pressure plate 12 swings synchronously with the card block 11. A slidable pressure strip 13 is provided on the side of the pressure plate 12. The pressure strip 13 can slide in a straight line toward or away from the pressure plate 12. A slidable pressure rod 14 is provided on the side of the pressure strip 13 away from the pressure plate 12. Sliding holes are opened on the upper surfaces of the middle cabinet 2 and the lower cabinet 3. The pressure rod 14 is slidably installed in the sliding holes, and the size of the upper end of the pressure rod 14 is larger than the sliding hole, that is, the upper end of the pressure rod 14 cannot pass through the sliding hole.

[0046] The pressure strip 13 and the pressure rod 14 are connected by a keyway, which allows the pressure strip 13 to slide smoothly only along the direction of the rod 14, while restricting the relative circumferential rotation between the pressure strip 13 and the pressure rod 14, ensuring the stability of the overall sliding transmission process and achieving reliable pressing and limiting of the pressure plate 12.

[0047] As an example, each pressure rod 14 is hinged to a connecting rod 15 at its upper end. The connecting rod 15 can rotate and fold freely relative to the end of the pressure rod 14. A hinge block 16 is hinged to the upper end of the connecting rod 15. There are two hinge blocks 16, which are respectively hinged to the preset installation points on the bottom surface of the upper cabinet 1 and the bottom surface of the middle cabinet 2. Through the hinged installation structure, the pressure rod 14, the connecting rod 15 and the hinge block 16 form a hinged transmission mechanism, which can automatically adjust the folding angle according to the change of the cabinet assembly spacing, and provide a stable transmission support structure for subsequent pressing linkage action.

[0048] As an example, a horizontally arranged lifting rod 17 is fixedly installed on one side of the connecting rod 15. The lifting rod 17 is fixed perpendicularly to the connecting rod 15, so that the lifting rod 17 can rotate and swing synchronously with the connecting rod 15.

[0049] The upper end of the pressure strip 13 is provided with a lifting groove 18 that matches the position, size and stroke of the lifting rod 17. The lifting rod 17 is movably nested inside the lifting groove 18 and can slide freely inside the lifting groove 18. When the connecting rod 15 is folded and rotated by the squeezing action of the cabinet assembly, the connecting rod 15 drives the lifting rod 17 to generate arc displacement synchronously.

[0050] The lifting rod 17 abuts against the wall of the lifting groove 18, converting the rotational motion of the connecting rod 15 into the linear lifting motion of the pressure bar 13. This stably drives the pressure bar 13 to slide upward along the rod body of the pressure rod 14, thereby releasing the pressure bar 13 from pressing and limiting the pressure plate 12, eliminating the lifting constraint on the locking block 11, and allowing the locking block 11 to fall freely back into the locking groove 10 to form a mechanical lock. This achieves an integrated linkage transmission structure where the rotation of the connecting rod 15 and the linear sliding of the pressure bar 13 are linked.

[0051] A more detailed operating procedure is as follows:

[0052] During the process of assembling and locking adjacent cabinets layer by layer, the upper cabinet places the pressure rod 14 and pressure strip 13 into the sliding hole of the lower cabinet, and then slides the upper cabinet downwards. The pressure rod 14 and pressure strip 13 slide downwards synchronously until the pressure strip 13 presses down onto the pressure plate 12, causing the pressure plate 12 to rotate and the locking block 11 to disengage from the locking groove 10.

[0053] At this time, the large-pitch sleeve 7 begins to engage with the large-pitch rod 8, causing the large-pitch rod 8 and the chuck 9 to begin to rotate. As the upper cabinet moves downward, when the upper end of the pressure rod 14 is limited at the sliding hole and cannot move further downward, the upper cabinet drives the hinge block 16 to press down the connecting rod 15, causing the connecting rod 15 to rotate and begin to fold. When the connecting rod 15 rotates, it drives the pressure strip 13 to rise through the lifting rod 17. As the pressure strip 13 rises, it will disengage from the pressure plate 12. After disengagement, the locking block 11 begins to reset under its own weight. When the locking block 11 re-engages into the slot 10, the upper cabinet and the lower cabinet are fully assembled. At this time, the upper cabinet and the lower cabinet are quickly assembled under the locking of the locking block 11 and the limitation of the large pitch.

[0054] As an example, elastic clips 19 are fixedly installed on both sides of the connecting rod 15. The elastic clips 19 have good elastic deformation and reset capabilities. Elastic clamps 20 corresponding to the elastic clips 19 are fixedly installed on both sides of the outer wall of the hinge block 16 and the pressure rod 14. The elastic clips 19 can completely follow the rotation posture of the connecting rod 15 and synchronously shift their positions.

[0055] Depending on the opening and folding state of the connecting rod 15, it can selectively engage with the inside of the elastic clamp 20 to achieve posture locking, or disengage to the outside of the elastic clamp 20 to achieve posture release. Relying on the elastic engagement and cooperation between the elastic clip 19 and the elastic clamp 20, the adaptive limit and unlocking switching of the working posture of the connecting rod 15 can be achieved.

[0056] In actual use, during the initial docking and assembly of the equipment cabinet, the connecting rod 15 is in a fully extended state. At this time, the elastic clips 19 at both ends of the connecting rod 15 are engaged with the inner side of the elastic clamp 20. The elastic clamp 20 locks the straight posture of the connecting rod 15 by limiting the elastic clips 19, so that the connecting rod 15 is kept in a supported state and continuously applies downward pressure to the pressure rod 14 below.

[0057] As the upper cabinet 1 and the middle cabinet 2 (the middle cabinet 2 and the lower cabinet 3) continue to sink and connect, the lower end of the pressure rod 14 contacts the top surface of the lower cabinet and is subjected to rigid support resistance. The relative displacement between the upper and lower parts forces the originally straight connecting rod 15 to fold and rotate. During the folding process, the elastic clip 19 is automatically released from the limiting range of the elastic clamp 20 under the action of rotational shear force, releasing the posture locking constraint of the connecting rod 15, so that the connecting rod 15 can be folded and rotated smoothly.

[0058] As the connecting rod 15 folds and rotates, it drives the lifting rod 17 fixed on the rod body to simultaneously generate a lifting displacement. The lifting rod 17 drives the pressure strip 13 to slide upward along the pressure rod 14 by abutting against the wall of the lifting groove 18. The pressure strip 13 moves away from the pressure plate 12 and completely releases the top pressure limit on the pressure plate 12. After the locking block 11 loses the lifting force, it automatically falls back to reset and locks into the slot 10, completing the automatic locking action after the cabinet is assembled between layers. This effectively solves the technical problems of traditional cabinets not having automatic anti-loosening locking after thread locking, requiring manual locking and fixing during assembly, cumbersome operation, and poor locking reliability, and realizes integrated operation of assembly, unlocking, and locking.

[0059] As an example, each of the card blocks 11 is fixedly fitted with an unlocking rod 21. The unlocking rod 21 is the rotation shaft of the card block 11 and the pressure plate 12. The unlocking rod 21 is rotatably mounted on the cabinet mounting structure of the middle cabinet 2 and the lower cabinet 3 respectively. The unlocking rod 21 can rotate freely without interference from the carding structure. A knob 22 is fixedly installed at the outer end of the unlocking rod 21 to facilitate manual turning operation.

[0060] By rotating the knob 22, the operator can rotate the unlocking rod 21 as a whole. The unlocking rod 21 simultaneously drives the fixed end block 11 to complete the lifting and resetting opening and closing action, thereby realizing the unlocking and resetting engagement between the block 11 and the slot 10. The overall unlocking structure is independently set, simple to operate, reliable in action, and does not affect the normal locking structure strength of the cabinet.

[0061] A reset spring can be optionally fitted onto the unlocking lever 21.

[0062] As an example, the same rear cabinet 23 can be detachably installed at the rear of the upper cabinet 1, the middle cabinet 2 and the lower cabinet 3. The upper part of the interior of the rear cabinet 23 is set as the busbar compartment 24, and the lower part of the busbar compartment 24 is set as the cable compartment 25. The high voltage busbar and control cable are arranged in a partitioned and orderly manner through the upper and lower partitioned structure.

[0063] As an example, a fixing plate 26 is fixedly installed on the rear side wall of the upper cabinet 1, the middle cabinet 2 and the lower cabinet 3. Each fixing plate 26 has a plug hole 27 at the center of the plate. A rotating frame 28 is rotatably installed on the outer wall of the rear cabinet 23. Multiple inclined slots 29 are evenly opened on the frame of the rotating frame 28. A plug rod 30 is slidably installed inside each inclined slot 29.

[0064] The plug rod 30 can slide along the trajectory of the inclined slot 29 and be inserted into the plug hole 27 of the fixing plate 26. Each of the outer sides of the plug rod 30 is provided with a limiting block 31 fixedly installed on the inner wall of the rear cabinet 23. The limiting block 31 restricts the sliding direction of the plug rod 30 and prevents the plug rod 30 from deviating and getting stuck.

[0065] As an example, a handle 32 is coaxially fixedly installed at the rear center position of the rotating frame 28. The handle 32 is placed in the internal cavity of the rear cabinet 23 and can be manually operated to rotate. A locking groove 33 is provided at the edge of the frame of the rotating frame 28. A fixing frame 34 is fixedly installed on the inner wall of the rear cabinet 23. A locking pin 35 is slidably installed inside the fixing frame 34. The locking pin 35 can slide along the fixing frame 34 and be inserted into the locking groove 33 to achieve angle locking and fixation of the rotating frame 28.

[0066] In practical use, after the three-layer cabinet is assembled, the rear cabinet 23 is attached to the rear end of the three-layer cabinet. The handle 32 inside the rear cabinet 23 is manually rotated. The handle 32 drives the coaxially fixed rotating frame 28 to rotate synchronously. During the rotation of the rotating frame 28, the inclined slot 29 on its surface will generate an oblique pushing force on the plug-in rod 30. Under the guiding and limiting action of the limiting block 31, multiple plug-in rods 30 slide outward synchronously and are inserted into the plug-in holes 27 of the rear fixing plate 26 of the upper cabinet 1, middle cabinet 2, and lower cabinet 3 respectively, so as to realize the synchronous multi-point fixation of the rear cabinet 23 and the three-layer cabinet.

[0067] After the insertion is in place, the locking pin 35 inside the fixing bracket 34 is inserted into the locking groove 33 of the rotating bracket 28, locking the rotation angle of the rotating bracket 28 and restricting the reverse rotation of the rotating bracket 28, thereby fixing the extension and locking state of the insertion rod 30. When disassembling the rear cabinet 23, simply slide the locking pin 35 out in the reverse direction to release the locking restriction of the rotating bracket 28, and rotate the handle 32 in the reverse direction to drive the insertion rod 30 to retract and disengage from the insertion hole 27, so that the rear cabinet 23 can be quickly disassembled.

[0068] Working principle of this invention:

[0069] The overall structure adopts a three-layer modular assembly structure consisting of upper cabinet 1, middle cabinet 2, and lower cabinet 3. Each cabinet is equipped with wiring terminals 4 and guide rails 5, which can be used to arrange and organize electronic components and power and weak current lines in the cabinet in a zoned manner. This effectively improves the shortcomings of traditional switch cabinets, such as messy wiring and difficult maintenance. The cabinet layers are assembled and positioned layer by layer through the cooperation of connectors and assembly parts, and multiple anti-loosening fixation is achieved by relying on threaded locking and mechanical linkage self-locking structure.

[0070] During cabinet assembly, the large-pitch sleeve 7 and the large-pitch rod 8 are screwed together to lock the vertically arranged cabinet. In the initial stage of assembly, the connecting rod 15 remains straight under the locking and limiting action of the elastic clip 19 and the elastic clamp 20. The continuous push of the pressure rod 14 and the pressure strip 13 moves down, so that the pressure strip 13 presses the pressure plate 12 and lifts the locking block 11, releasing the circumferential limit of the chuck 9, and ensuring that the large-pitch rod 8 can be screwed and tightened smoothly.

[0071] As the cabinets are continuously pressed and tightened, the pressure rod 14 contacts the top surface of the lower cabinet and is supported, forcing the connecting rod 15 to overcome the limit of the elastic clamp 20 and fold and rotate. During the folding process, the connecting rod 15 drives the lifting rod 17 to move along the arc trajectory, and drives the pressure strip 13 to slide upward along the pressure rod 14 through the lifting groove 18, releasing the pressure constraint on the pressure plate 12. The locking block 11 automatically falls back and locks into the locking groove 10, forming a circumferential lock on the chuck 9, realizing automatic mechanical anti-loosening after thread locking, effectively resisting the problem of thread loosening caused by equipment operation vibration.

[0072] When the equipment needs to be disassembled, the unlocking rod 21 can be rotated by rotating the knob 22, which can manually lift the locking block 11 and release the locking of the slot 10. Then, the large pitch rod 8 can be rotated out in the opposite direction to complete the disassembly of the cabinet.

[0073] After the three-layer cabinet is assembled, the rotating frame 28 is rotated by turning the handle 32, and multiple sets of plug-in rods 30 are pushed by the inclined slot 29 to be inserted into the plug-in holes 27 of each layer of the cabinet at the same time, so as to realize the overall rapid assembly of the rear cabinet 23, and the angle is locked by inserting the locking pin 35 into the locking slot 33.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A modular high-voltage switchgear with neatly categorized electronic components, characterized in that, The cabinet includes an upper cabinet (1), a middle cabinet (2) below the upper cabinet (1), and a lower cabinet (3) below the middle cabinet (2). The upper cabinet (1), middle cabinet (2), and lower cabinet (3) can be assembled layer by layer. Wiring terminals (4) are fixedly installed inside the upper cabinet (1), middle cabinet (2), and lower cabinet (3). Guide rails (5) are fixedly installed on the sides of the wiring terminals (4). Assembly parts are fixedly installed around the top of the middle cabinet (2) and lower cabinet (3). Connectors corresponding to the assembly parts are fixedly installed around the bottom of the upper cabinet (1) and middle cabinet (2).

2. The assembled high-voltage switchgear with well-organized electronic component classification according to claim 1, characterized in that, The connector includes a large-pitch sleeve (7) that is fixedly installed on the bottom surfaces of the upper cabinet (1) and the middle cabinet (2). The assembly includes a large pitch rod (8) that is rotatably mounted on the top of the middle cabinet (2) and the lower cabinet (3) and cooperates with the large pitch sleeve (7). A chuck (9) is fixedly mounted on the lower end of the large pitch rod (8). Multiple circumferentially evenly distributed slots (10) are opened on the chuck (9). A rotatably mounted block (11) is provided on the side of the slot (10). The block (11) can be inserted into the slot (10).

3. The assembled high-voltage switchgear with well-organized electronic component classification according to claim 2, characterized in that, A pressure plate (12) is fixedly installed on one side of the card block (11), and a sliding pressure strip (13) is provided on the side of the pressure plate (12), and a sliding pressure rod (14) is provided on one side of the pressure strip (13).

4. The assembled high-voltage switchgear with well-organized electronic component classification according to claim 3, characterized in that, The upper end of the pressure rod (14) is hinged to a connecting rod (15), and the upper end of the connecting rod (15) is hinged to a hinge block (16) installed on the upper cabinet (1) and the middle cabinet (2).

5. The assembled high-voltage switchgear with well-organized electronic component classification according to claim 4, characterized in that, A lifting rod (17) is fixedly installed on one side of the connecting rod (15), and a lifting groove (18) corresponding to the lifting rod (17) is opened at the upper end of the pressure strip (13).

6. The assembled high-voltage switchgear with neatly categorized electronic components according to claim 5, characterized in that, Both sides of the connecting rod (15) are fixedly installed with elastic clips (19), and both sides of the hinge block (16) and the pressure rod (14) are fixedly installed with elastic clamps (20) corresponding to the elastic clips (19).

7. The assembled high-voltage switchgear with neatly categorized electronic components according to claim 6, characterized in that, The card block (11) is fixedly fitted with an unlocking rod (21) that is rotatably installed in the middle cabinet (2) and the lower cabinet (3). A knob (22) is fixedly installed at the end of the unlocking rod (21).

8. The assembled high-voltage switchgear with neatly categorized electronic components according to claim 1, characterized in that, The same rear cabinet (23) is disassembled and installed behind the upper cabinet (1), middle cabinet (2) and lower cabinet (3). A busbar compartment (24) is provided above the rear cabinet (23), and a cable compartment (25) is provided below the busbar compartment (24).

9. A modular high-voltage switchgear with well-organized electronic component classification according to claim 8, characterized in that, A fixing plate (26) is fixedly installed at the rear of the upper cabinet (1), middle cabinet (2) and lower cabinet (3). A plug-in hole (27) is opened on the fixing plate (26). A rotating frame (28) is rotatably installed on the rear cabinet (23). A plurality of inclined slots (29) are opened on the rotating frame (28). A plug-in rod (30) is slidably installed in each inclined slot (29).

10. A modular high-voltage switchgear with well-organized electronic component classification according to claim 9, characterized in that, A handle (32) is fixed behind the rotating frame (28) and placed inside the rear cabinet (23). A locking groove (33) is provided on the rotating frame (28), and a fixing frame (34) corresponding to the locking groove (33) is fixedly installed on the inner wall of the rear cabinet (23).

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