Double-face drawer type intelligent switch cabinet

Abstract

The invention belongs to the technical field of intelligent switch cabinets, and particularly relates to a double-face drawer type intelligent switch cabinet which comprises a cabinet body, a bearing plate is arranged in the cabinet body, switch drawers are slidably arranged on the end face of the bearing plate, a partition plate is arranged on one side of the bearing plate, and a connecting cabin is arranged in the cabinet body on one side of the partition plate. A fixed power-on module is arranged on the connecting cabin and the partition plate, a movable power-on module is arranged on the switch drawer, an anti-skid structure is arranged in the switch drawer and the cabinet body, the switch drawer is further provided with a buffer reinforcing structure, and the buffer reinforcing structure and the anti-skid structure are installed in a matched mode. The internal structure of the switch drawer is reasonably optimized, the occupied volume of the switch drawer is reduced, and by arranging the limiting block and other mechanisms, the problems that the drawer cabinet inclines and even suddenly falls off due to the weight of the drawer cabinet, internal circuits are abraded, and the service life of cables is affected are solved.

Description

Technical Field

[0001] This invention belongs to the field of intelligent switch cabinet technology, and particularly relates to a double-sided drawer-type intelligent switch cabinet. Background Technology

[0002] A switch cabinet is a type of enclosure used to protect components and ensure their proper functioning. It typically consists of a cabinet body and internal partitions. Switch cabinets have drawers; the electrical components for the incoming and outgoing circuits are installed in these removable drawers, forming a functional unit capable of performing a specific type of power supply task.

[0003] Patent No. CN208923699U discloses a drawer-type double-sided switchgear. The drawer-type double-sided switchgear includes two equipment compartments (10, 20) located on the front and back sides of the double-sided switchgear, respectively, and a vertical busbar compartment (circuit breaker lever 30) between the two equipment compartments for accommodating vertical busbars. Several drawers (60) including electrical equipment are pluggably installed into the equipment compartments. The vertical busbar compartment is provided with a set of vertical busbars shared by the two equipment compartments. The set of vertical busbars includes a first neutral busbar (N1), a first phase busbar (A), a second phase busbar (B), a third phase busbar (C), and a second neutral busbar (N2). This allows the drawers to be used in the equipment compartments on both sides of the switchgear without any adjustment.

[0004] In existing technology, by setting up a vertical busbar compartment and two equipment compartments, drawer-type switches can be installed on both sides of the drawer cabinet. However, the following problems still exist in overall use: Firstly, existing double-sided drawer switch cabinets have drawers installed on both sides of the cabinet and an unreasonable internal structure, resulting in a large overall size and a large footprint. This limits installation in small spaces and affects the overall adaptability of the device. Secondly, existing drawer-type switch cabinets are usually modular designs, with each drawer able to be pulled out independently. However, the drawers are limited within the cabinet by transmission mechanisms such as worm gears, which makes the structure unstable. External impacts can cause the drawers to slide inside the cabinet. The internal wiring of the cabinet is complex, and the sliding displacement and collisions of the drawers can lead to accidents such as broken connections or short circuits, affecting the service life of the device and endangering the safety of the staff. Finally, when opening and closing the drawer by cranking the handle, the drawer cabinet may tilt due to its own weight, or even suddenly fall, causing wear and tear on the internal wiring and affecting the lifespan of the cables. In addition, when installing or maintaining wiring in the drawer cabinet with the power off in a partially extended state, the drawer may slide inside the cabinet, affecting the installation experience. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies, this invention provides a double-sided drawer-type intelligent switch cabinet. By adjusting the positions of the static and dynamic inserts, the internal structure of the switch drawer is optimized, reducing its volume. Furthermore, by incorporating limiting blocks and other mechanisms, the problem of the drawer cabinet tilting or even suddenly falling due to its own weight, causing wear and tear on internal wiring and affecting cable lifespan, is solved. Simultaneously, the limiting blocks strengthen the connection between the switch drawer and the cabinet body, addressing the issue that relying solely on worm gears or other transmission mechanisms for drawer positioning within the cabinet results in insufficient structural stability, leading to drawer slippage due to external impacts and potential accidents.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a double-sided drawer-type intelligent switch cabinet, comprising a cabinet body, multiple load-bearing plates arranged inside the cabinet body, the load-bearing plates being divided into two rows and distributed on both sides of the cabinet body, and switch drawers slidably mounted on the end faces of the load-bearing plates, so that the switch drawers are arranged in two rows on the end faces of the cabinet body respectively, a partition plate being provided on one side of each set of load-bearing plates, and a connecting compartment being provided on one side of the partition plates within the cabinet body, a fixed power-conducting module being provided in the connecting compartment and on the partition plate, and a movable power-conducting module being provided on the switch drawer, wherein when the switch drawer is pushed into the cabinet body, the fixed power-conducting module and the movable power-conducting module are connected to form a power-conducting circuit, the internal and external electrical appliances and connecting cables of the fixed power-conducting module are arranged in the connecting compartment, the switch drawer and the cabinet body are provided with an anti-slip structure, and the switch drawer is also provided with a buffer reinforcement structure, the buffer reinforcement structure and the anti-slip structure being installed in conjunction.

[0007] Preferably, each of the multiple load-bearing plates has a limiting thread groove on its end face, and a connecting base is provided above the multiple limiting thread grooves on the end face of the switch drawer. A rotating rod is rotatably provided inside each connecting base, and a worm gear is provided outside the rotating rod. The multiple worm gears are engaged with the limiting thread grooves for transmission. The forward and reverse rotation of the rotating rod causes the switch drawer to slide inward and outward.

[0008] Preferably, the fixed power supply module includes multiple longitudinally mounted static plugs disposed inside the connecting compartment. The wiring terminals of the multiple static plugs extend into the interior of the switch drawer. A secondary circuit connection terminal is provided on one side of the static plug on the end face of the connecting compartment, and a vertical busbar is provided on one side of the static plug on the end face of the partition plate.

[0009] Preferably, the mobile power-on module includes a primary main circuit plug-in disposed on the end face of the switch drawer near the partition plate. The primary main circuit plug-in is connected to the vertical busbar. A movable plug-in is also disposed on the end face of the switch drawer and is fastened to the stationary plug-in. A secondary circuit pin is also disposed on one side of the movable plug-in on the end face of the switch drawer. The secondary circuit pin is connected to the secondary circuit connection end.

[0010] Preferably, the drawer end face of the switch drawer is provided with a drawer door, and the drawer door is provided with a switch handle. The operation of the switch handle realizes the locking of the drawer door and the closing and opening of the switch drawer circuit.

[0011] Preferably, the anti-slip structure includes a protrusion disposed at the bottom of each load-bearing plate, a mounting base on the inner wall of the switch drawer below the load-bearing plate, a limit block elastically rotatably disposed inside the mounting base, the end of the limit block near the protrusion tilting upward and abutting against the protrusion, and the switch drawer being pulled outward after the limit block is pressed down and disengaged from the protrusion.

[0012] Preferably, the anti-slip structure further includes a dust cover disposed outside the switch drawer and inside the cabinet. The dust cover is provided with a connecting horizontal plate inside. Multiple toothed blocks are arranged on the end face of the connecting horizontal plate near the switch drawer. A limiting base is provided inside the switch drawer. A sliding rod is elastically slidable inside the limiting base. The sliding rod passes through the switch drawer and is connected to a conical block. The conical block abuts against and limits the toothed block on the end face of the connecting horizontal plate.

[0013] Preferably, each of the plurality of connecting horizontal plates is provided with a guide block at one end, and an anti-detachment groove is provided between the plurality of guide blocks and the connecting horizontal plates, wherein the anti-detachment groove and the guide block can abut against the conical block.

[0014] Preferably, the buffer reinforcement structure includes a connecting shell disposed inside the switch drawer, one end of each of the multiple connecting shells is provided with a buffer sleeve capable of buffering pressure, a push rod is disposed inside each of the multiple buffer sleeves, one end of each of the multiple push rods extends into the interior of the connecting shell, a limit block is slidably disposed inside each of the multiple connecting shells, a positioning plug is slidably disposed at the top end of each of the multiple limit blocks, the multiple positioning plugs are respectively fixedly connected to the bottom end face of the load-bearing plate, and the bottom end face of the positioning plug is provided with a slot corresponding to the limit block.

[0015] Preferably, the connecting shell is fixedly installed on the end face of the mounting base or the limiting base.

[0016] In summary, compared with existing technologies, the beneficial effects of this solution are as follows: (1) The present invention sets up a load-bearing plate, a connecting compartment, a static plug and a secondary circuit connection end, etc. By setting the static plug and the moving plug in the longitudinal direction to make electrical connection, and installing the moving plug in one corner of the inside of the switch drawer, the width of the cabinet and the switch drawer can be reduced, greatly optimizing the internal space of the cabinet and reducing the floor area. At the same time, the secondary circuit pin is installed on one side of the switch drawer, so that the secondary circuit pin is far away from the moving plug. This not only prevents the heat of the current from concentrating and improves the heat dissipation of the line, but also moves the secondary circuit pin forward to reduce the depth of the switch drawer, which can further reduce the space occupied by the cabinet. In addition, by cooperating with the connecting compartment, the cable can be inspected or installed from one side of the cabinet, which effectively improves the installation experience and work efficiency. (2) By setting up a limiting block, a pull bolt, a mounting base, and a rotating handle, the present invention can limit the cabinet by the upward-curving limiting block when the drawer is sliding, thereby preventing the drawer from suddenly detaching from the cabinet and falling, thus improving the safety of the cabinet. Furthermore, by rotating the rotating handle, the upward-curving limiting block can be pulled down to release the restriction on the cabinet, thereby separating the drawer from the cabinet and improving work efficiency. (3) By setting up a buffer sleeve and a top rod, as well as a limiting plug and a buffer sleeve, the present invention can buffer between the switch drawer and the partition plate when the drawer is installed, so as to prevent the switch drawer from colliding with the partition plate when it comes into contact with the partition plate, which would affect the service life of the switch cabinet. When the buffer sleeve comes into contact with the partition plate, the partition plate will push the top rod inside the buffer sleeve in the opposite direction, so that the top rod will push the limiting plug into the slot of the positioning plug. The switch drawer is connected to the cabinet through the plug and the positioning plug, thereby strengthening the integration of the drawer and the cabinet, improving the stability of the switch drawer, preventing the drawer from shaking inside the cabinet, and improving the service life of the switch drawer and the internal circuit. (4) By setting up a connecting horizontal plate, an anti-detachment groove, a guide block, and a conical block, the present invention can guide the switch drawer, which facilitates the precise docking of the movable power module and the fixed power module, improving the user experience. At the same time, by moving the track and bearing rollers upward, the switch drawer can be prevented from tilting downward when it is pulled out, improving the stability of the switch drawer. Furthermore, by setting up toothed blocks, the resistance to sliding of the switch drawer can be increased, preventing the drawer from sliding during wiring installation, thus improving the user experience. By setting up an anti-detachment groove, the conical block can be prevented from detaching from the connecting horizontal plate, thereby preventing the switch drawer from suddenly detaching from the cabinet, further improving the safety of the device. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention; Figure 2 This is a first-view structural diagram of the internal structure of the present invention; Figure 3This is a second-view structural diagram of the internal structure of the present invention; Figure 4 for Figure 3 A magnified view of a section at point A in the middle; Figure 5 for Figure 4 A magnified view of a section at point B in the middle; Figure 6 A first-person perspective 3D view of the drawer opening and closing parts; Figure 7 A second-view perspective perspective view of the drawer opening / closing component; Figure 8 This is a front view of the drawer opening and closing parts; Figure 9 for Figure 8 A three-dimensional sectional view at point CC; Figure 10 This is a side view of the drawer opening and closing component; Figure 11 for Figure 10 A three-dimensional sectional view at point DD; In the diagram: Cabinet 10, Busbar Compartment 11, Drawer Door 12, Protrusion 13, Switch Handle 14, Socket 15, Connection Compartment 16, Vertical Mounting Plate 17, Secondary Circuit Connection Terminal 18, Static Insert 19, Divider Plate 20, Vertical Busbar 21, Load-bearing Plate 22, Heat Dissipation Hole 23, Limit Threaded Groove 24, Switch Drawer 25, Rotating Rod 26, Connecting Base 27, Worm Gear 28, Position Indicator 29, Circuit Breaker Rotating Rod 30, Molded Case Circuit Breaker 31, First Connecting Copper Busbar 32, Second Connecting Copper Busbar 33, Moving Insert 34, Main Circuit Primary Insert 3 5. Secondary circuit pin 36, bearing roller 37, track 38, mounting base 39, limit block 40, pull bolt 41, rotating handle 42, first return spring 43, connecting shell 44, limit plug 45, buffer sleeve 46, top rod 47, second return spring 48, positioning plug 49, limit inclined surface 50, limit base 51, sliding rod 52, third return spring 53, conical block 54, handle 55, limit groove 56, connecting horizontal plate 57, dust cover 58, guide block 59, anti-derailment groove 60, cooling fan 61, vertical busbar 62. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0019] Example 1: refer to Figure 1 , Figure 2 and Figure 3A double-sided drawer-type intelligent switch cabinet includes a cabinet body 10. The cabinet body 10 contains multiple switch drawers 25 arranged in a longitudinal array. The switch drawers 25 are arranged in two rows on both sides of the cabinet body 10, enabling double-sided operation. This facilitates flexible wiring and maintenance in confined spaces and improves power distribution control efficiency. Each row of switch drawers 25 is independently equipped with an operating mechanism and electrical connection components, ensuring no interference during double-sided operation and enhancing safety and control accuracy. (See attached diagram.) Figure 1 As can be seen, the width and depth of the multiple switch drawers 25 in this application are the same, but the height is designed differently according to actual needs to adapt to the installation of electrical components of different specifications. The basic height specifications are in the range of 150mm-600mm. The height of the switch drawers 25 in the figure is mainly 200mm and 400mm. Other height states are not shown in this figure, but those skilled in the art can arrange them within the above range according to the above needs. Each switch drawer 25 has a drawer door 12 rotatably mounted on its outer surface. The multiple switch drawers 25 are rotatably connected to the drawer door 12 by hinges. The outer surface of the multiple drawer doors 12 is provided with a switch handle 14, which locks the drawer door 12. The drawer door can be opened or closed by turning the switch handle 14.

[0020] Further reference Figure 2 , Figure 3 and Figure 4 The cabinet 10 has multiple load-bearing plates 22 inside, with a depth ranging from 200mm to 300mm. In this application, 260mm is the primary depth. Therefore, the depth of the switch drawer 25 in this application is between 260mm and 3mm. Each switch drawer 25 is slidably connected to its respective load-bearing plate 22. Bearing rollers 37 are rotatably mounted on both sides of the outer surface of each switch drawer 25. Roller shafts are rotatably mounted inside each bearing roller 37, with one end of the roller shaft fixedly connected to the switch drawer 25. Tracks 38 are provided on the top surface of each load-bearing plate 22, and the bearing rollers 37 are slidably connected to the tracks 38. By using the bearing rollers 37 and tracks 38, the friction between the switch drawer 25 and the load-bearing plate 22 is reduced, thus reducing wear and tear on the switch drawer 25, increasing its service life, and facilitating drawer access. Furthermore, the overall length of the tracks 38 is between one-half and one-third of the depth of the load-bearing plate 22. Limiting the overall length of the tracks 38 facilitates drawer access while reducing resource consumption.

[0021] Further reference Figure 2 , Figure 3 and Figure 4Traditional double-sided cabinets, while offering dual-sided operation, have extremely low space utilization, resulting in a long overall depth, typically exceeding 1000mm. This cabinet 10, however, can control the overall depth between 500mm and 700mm. To optimize the internal structure and make rational use of the drawer space while reducing floor area, multiple load-bearing panels 22 are arranged longitudinally, divided into two groups. These two groups of load-bearing panels 22 are arranged separately inside the cabinet 10, with a partition on one side of each group of load-bearing panels 22. 20. The partition plate 20 and the load-bearing plate 22 divide the interior space of the cabinet into independent operating areas. Multiple vertical busbars 21 are provided on the outer surface of both partition plates 20. The multiple vertical busbars 21 are electrically connected by copper busbars. One end of the copper busbar extends into the cabinet body 10. A busbar compartment 11 is provided on the top of the cabinet body 10. A vertical busbar trough 62 is provided inside the busbar compartment 11. The copper busbar is connected to the vertical busbar trough 62. The vertical busbar trough 62 is electrically connected to an external power source to provide power to the inside of the drawer cabinet and realize stable power transmission.

[0022] Further reference Figure 3 , Figure 4 , Figure 6 and Figure 7 Multiple vertical busbars 21 have slidingly mounted primary circuit inserts 35 inside. Each primary circuit insert 35 contains a conductive slider that slides in contact with the vertical busbars 21, maintaining good conductivity. All primary circuit inserts 35 are fixedly connected to a switch drawer 25. The drawer frame 25 automatically connects to power via the conductive slider when pushed into one end of the partition plate 20, and automatically disconnects when pulled out, ensuring operational safety. Each primary circuit insert 35 has a first connecting copper busbar 32 at one end, and a molded case circuit breaker 31 at one end. One side of the molded case circuit breaker 31 is electrically connected to an intermediate relay and a fuse, providing power disconnection protection for the circuit and ensuring rapid power cut-off in case of overload or short circuit. The incoming terminal of the molded case circuit breaker 31 is electrically connected to the first connecting copper busbar 32, and the outgoing terminal of the molded case circuit breaker 31 is provided with a second connecting copper busbar 33. A moving insert 34 is longitudinally installed on one side wall of the switch drawer 25, and the moving insert 34 is electrically connected to the second connecting copper busbar 33. Each of the multiple switch drawers 25 has a connecting compartment 16 inside the cabinet 10 on one side, and a stationary insert 19 is provided on the side wall of the connecting compartment 16. The stationary insert 19 slides in conjunction with the moving insert 34. When the drawer frame 25 is pushed into the cabinet 10, the moving insert 34 and the stationary insert 19 precisely align, realizing the automatic connection of the secondary circuit. When it is pulled out, they automatically separate, ensuring the safety of disconnecting the secondary circuit.

[0023] Further reference Figure 3 , Figure 4 , Figure 6 and Figure 7Traditionally, the static insert 19 is placed in a position similar to the partition 20. However, the static insert 19 itself has a certain length, and a longer end of the static insert 19 will remain on the other side of the partition 20, thus creating unnecessary space length. In this application, the moving insert 34 and the static insert 19 are installed vertically, and this remaining length is arranged in the connecting compartment 16, which can reduce the lateral space occupation, thereby reducing the overall space occupation, optimizing the internal layout of the cabinet, and improving space utilization. The outer surface of the second connecting copper busbar 33 is connected to a contactor and a current transformer. The contactor and current transformer are existing technologies and will not be elaborated on in this solution. Their main function is to control the start and stop of the internal electrical appliances. By setting the main circuit primary insert 35, the molded case circuit breaker 31, and the moving insert 34, the circuit is made to form a loop in the drawer cabinet.

[0024] Further reference Figure 3 , Figure 4 , Figure 6 and Figure 7 To further reduce the volume of the drawer cabinet, a vertical mounting plate 17 is provided on one side of the static plug 19. Multiple secondary circuit connection terminals 18 are provided on the outer surfaces of the vertical mounting plates 17. The secondary circuit connection terminals 18 are moved forward and positioned in front of the static plug 19. Secondary circuit pins 36 are slidably installed inside each of the multiple secondary circuit connection terminals 18, and are electrically connected to the secondary circuit pins 36. The secondary circuit pins 36 are fixedly connected to the outer surface of the switch drawer 25. By moving the secondary circuit connection terminals 18 forward, the depth originally occupied by the secondary circuit connection terminals 18 is removed, thereby reducing the overall depth of the cabinet. The position of the secondary circuit pins 36 is moved to the outer surface of the switch drawer 25, keeping them away from the moving plug 34. This not only prevents heat concentration from current flow and improves the lifespan of the circuit, but also provides space for maintenance of the secondary circuit pins 36 and the moving plug 34, improving the maintenance experience.

[0025] Further reference Figure 3 and Figure 5If the switch drawer 25 needs to be pulled out, the current circuit needs to be shut off. A connecting base 27 is fixedly installed on the end face of the switch drawer 25. A circuit breaker lever 30 is rotatably installed on the outer surface of multiple connecting bases 27. One end of the circuit breaker lever 30 is connected to a switch handle 14 installed on the outer surface of the drawer door 12. The other end of the circuit breaker lever 30 is connected to the open / closed position of the molded case circuit breaker 31 through an existing interlocking structure. The interlocking structure is prior art and will not be elaborated on in this application. In this application, the locking, closing, and opening operations can be completed by operating the switch handle 14. When closing the circuit of the drawer cabinet, it is only necessary to rotate the switch handle 14, so that the switch handle 14 drives the circuit breaker lever 30 to rotate, thereby causing the circuit breaker lever 30 to drive the interlocking structure of the molded case circuit breaker 31 to disconnect the circuit.

[0026] Further reference Figure 3 and Figure 5 Each of the multiple load-bearing plates 22 has a limiting thread groove 24 on its end face. The limiting thread groove 24 has a spiral groove inside. A rotating rod 26 is rotatably mounted above the limiting thread groove 24 within the connecting base 27. One end of the rotating rod 26 extends outwards towards the drawer door 12. An insertion hole 15 is provided at the extended end of the rotating rod 26. A worm gear 28 is provided on the outside of the rotating rod 26, and the worm gear 28 meshes with the limiting thread groove 24 for transmission. The outer surface of each of the multiple connecting bases 27 has an existing position indicator 29 and an observation slot for observing the position indicator 29. After the circuit is closed, when the drawer is separated from the cabinet, the operation... Personnel need to insert a hex wrench into the socket 15, and then rotate the rotating rod 26, which drives the worm gear 28 to rotate. The worm gear 28 engages with the limiting thread groove 24, causing the worm gear 28 to slide along the limiting thread groove 24 until the worm gear 28 disengages from the limiting thread groove 24. During the movement, the worm gear 28 drives the connecting base 27 to move, which in turn drives the switch drawer 25 to move, causing the switch drawer 25 to disengage from the load-bearing plate 22. Then the drawer can be taken out. When the worm gear 28 disengages from the limiting thread groove 24, the switch drawer 25 can be smoothly pulled out of the cabinet.

[0027] Further, see reference 2. Figure 3 and Figure 4Existing double-sided junction boxes typically have drawers installed on both sides, with cables and numerous cable trays and cable management systems arranged between the drawers. This results in a significant loss of internal space and increased drawer depth. This application addresses this by providing a connecting compartment 16 within the cabinet 10 on one side of each of the two drawers. Most of the cable trays and cable management systems are placed within the connecting compartment 16, freeing up space in the drawer area. For example, the external terminals of the static connector 19 extend into the connecting compartment 16. External electrical equipment is electrically connected to the external terminals of the static connector 19 via cables or cable trays. By providing the connecting compartment 16, not only is the overall depth of the cabinet shortened, but electrical equipment can also be connected from both sides, improving installation and maintenance efficiency.

[0028] Further reference Figure 3 and Figure 4 Above the two connecting compartments 16 and inside the busbar compartment 11, there are cooling fans 61. The cooling fans 61 can blow air downwards to dissipate heat from the cables and connections in the connecting compartments 16, preventing heat accumulation and short circuits. The outer surfaces of the busbar compartment 11 and the connecting compartments 16 are provided with air holes to allow airflow, improving air circulation and heat dissipation. In addition, multiple heat dissipation holes 23 are provided on the end face of the load-bearing plate 22. By providing heat dissipation holes 23, the air blown out by the cooling fans 61 can circulate inside the cabinet 10, thereby improving the heat dissipation effect of the cabinet 10.

[0029] Further reference Figure 6 , Figure 7 , Figure 8 , Figure 10 and Figure 11 To prevent the switch drawer 25 from suddenly sliding and falling when being removed by staff, thus affecting staff safety and the lifespan of the device, an anti-slip structure is installed inside the switch drawer 25. The anti-slip structure includes mounting bases 39 on the inner walls of multiple switch drawers 25. Each mounting base 39 has a rotatable limit block 40 inside. The limit block 40 is made of rubber, and the end of the limit block 40 away from the partition plate 20 is curved upward. The curved end of the limit block 40 slides against the bottom end face of the load-bearing plate 22 above the switch drawer 25. Each load-bearing plate 22 has a downward protrusion 13 on its bottom end face. Each limit block 40 has a pull bolt 41 inside. The pull bolt 41 is trapezoidal in shape with a disc formed on the top. The bottom end face of the disc is fixedly connected to the top end face of the limit block 40. One end of the pull bolt 41 slides through the mounting base 39 and has a rotating handle 42. The rotating handle 42 has an arc protrusion near the corner of the mounting base 39. A first return spring 43 is connected between the limit block 40 and the mounting base 39 on the outside of the pull bolt 41.

[0030] Specifically, when the lever 26 is rotated using a hex wrench, causing the worm gear 28 to slide, the sliding drawer 25 will move the mounting base 39 and the limiting block 40. During this movement, the raised end of the limiting block 40 will contact the protrusion 13 on the bottom surface of the upper load-bearing plate 22, limiting the drawer 25 and preventing it from falling, thereby improving the overall safety of the device. When it is necessary to completely separate the drawer 25 from the cabinet, pull the wrench on the outer surface of the rotating handle 42 to make the lever... When the handle 42 is rotated downwards as a whole, the arc protrusion at one end of the handle 42 will flip up and abut against the bottom end face of the mounting base 39. As the handle 42 is rotated, the arc protrusion will push the handle 42 downwards as a whole, causing the handle 42 to pull one end of the bolt 41, which in turn pulls the limit block 40 and squeezes the first return spring 43, so that the height of the limit block 40 is lower than the protrusion at the bottom end face of the load-bearing plate 22, thereby releasing the limit state. At this time, the drawer 25 can be pulled out smoothly.

[0031] Example 2: refer to Figure 7 , Figure 8 and Figure 9 A double-sided drawer-type intelligent switch cabinet is described in this embodiment. The anti-slip structure of the switch drawers 25 is further improved or replaced. Dust covers 58 are provided on the outer surfaces of multiple switch drawers 25. The bottom end face of the dust cover 58 is fixedly connected to the track 38. In this embodiment, the position of the track 38 is shown in the attached drawings. Figure 7 and Figure 8 The positions of the track 38 and bearing roller 37 are adjusted upward as a whole. The track 38 is fixedly connected to the frame of the cabinet 10 and not connected to the load-bearing plate 22. By moving the position of the track 38 upward, the top of both sides of the switch drawer 25 can be slidably supported, which can prevent the switch drawer 25 from tilting after sliding out.

[0032] Further reference Figure 7 , Figure 8 and Figure 9Each of the multiple dust covers 58 has a connecting plate 57 inside. Multiple raised teeth are provided on the end face of the connecting plate 57 near the switch drawer 25. The tips of the teeth slide in contact with the switch drawer 25. By providing teeth on the surface of the connecting plate 57, the resistance to sliding of the switch drawer 25 is increased, preventing the switch drawer 25 from sliding when cables or internal electrical appliances are installed inside, thus affecting the installation experience. In this application, the connecting plate 57 is entirely made of rubber material, possessing good elasticity and wear resistance. The teeth can produce moderate deformation when in contact with the drawer frame, ensuring a limiting effect without damaging the drawer surface. A limiting base 51 is provided on one side of the connecting horizontal plate 57 on the end face of the switch drawer 25. A sliding rod 52 is slidably installed inside the limiting base 51. One end of the sliding rod 52 extends out of the end face of the switch drawer 25 and is connected to a conical block 54. A handle 55 is provided at the other end of the sliding rod 52. A third return spring 53 is connected between the limiting base 51 and the conical block 54 on the outside of the sliding rod 52. A guide block 59 is provided on the inner side of the end of the connecting horizontal plate 57 near the drawer door 12. Both guide blocks 59 have guide slopes, and the two guide blocks 59 form an opening in a trumpet shape. During the process of sliding the switch drawer 25 into the cabinet 10, the conical block 54 first contacts the guide slopes of the two guide blocks 59, thereby guiding the conical block 54, so that the switch drawer 25 can slide stably and centrally to one side, so that the electrical connectors inside the switch drawer 25 can be accurately positioned, improving the convenience of installation.

[0033] Further reference Figure 7 , Figure 8 and Figure 9 To prevent the drawer 25 from suddenly falling off after sliding outward a certain distance, an anti-detachment groove 60 is provided between the guide block 59 and multiple toothed blocks to prevent the connecting cross plate 57 from detaching. In addition, a limit groove 56 is provided on the outer surface of the limiting base 51 near the handle 55. It should be noted that the handle 55 is flat and has an expanded protrusion at one end, while the limit groove 56 is a vertical groove. When the handle 55 is in a vertical state, the flat handle 55 will be stuck in the limit groove 56 to form a limit fixation.

[0034] In this embodiment, when the switch drawer 25 is pulled out a certain distance for circuit maintenance or electrical installation, the lever 26 is first rotated with a hex wrench to move the switch drawer 25 forward a certain distance before it is fully pulled out. However, in this embodiment, the switch drawer 25 moves the internal limiting base 51, which in turn moves the internal conical block 54. As the conical block 54 moves, it contacts the toothed block on the connecting plate 57. During this process, the toothed block limits the movement of the conical block 54, creating resistance. At this point, the operator can perform wiring maintenance on the switch drawer 25. However, as the switch drawer 25 continues to move, the conical block 54 abuts against the inclined surface of the toothed block and presses the third return spring 53 on one side. At this point, the conical block 54 slides inward toward the limiting base 51, thus disengaging from the toothed block and allowing the switch drawer 25 to slide smoothly.

[0035] Further reference Figure 7 , Figure 8 and Figure 9 When the handle 55 slides to the anti-disengagement groove 60, the anti-disengagement groove 60 is perpendicular to the handle 55. The inner wall of the vertical anti-disengagement groove 60 will prevent the handle 55 from continuing to rotate, thereby preventing the third spring 33 from resetting due to elastic potential energy, preventing the third reset spring 53 from pushing the conical block 54 to contact the toothed block, thereby releasing the restriction on the opening and closing drawer 25.

[0036] When it is necessary to remove the switch drawer 25 entirely outward, the operator can pull the handle 55 to move it away from the connecting horizontal plate 57. By pulling the sliding rod 52 through the handle 55, the sliding rod 52 causes the conical block 54 to press against the third return spring 53 on one side, and pulls the conical block 54 into the interior of the switch drawer 25, preventing the conical block 54 from contacting the toothed block. Then, rotate the handle 55 so that one end of the handle 55 is locked inside the limiting groove 56, preventing the handle 55 from sliding into the limiting base 51, thereby fixing the position of the conical block 54. At this time, the conical block 54 will not contact the toothed block or the limiting groove 56, thus completing the release of the switch drawer 25. Then, pull the switch drawer 25 outward to complete the separation.

[0037] It should be noted that when using the anti-slip structure in this embodiment, the anti-slip structure of the limiting block 40 in Embodiment 1 can be omitted. The two can be used independently or in combination to adapt to the anti-slip requirements of different installation environments.

[0038] Example 3: refer to Figure 7 , Figure 9 , Figure 10 and Figure 11A double-sided drawer-type intelligent switch cabinet is further improved based on Embodiment 1 or Embodiment 2. To further improve the stability of the switch drawer 25 when placed inside the cabinet 10, a buffer reinforcement structure is provided. The buffer reinforcement structure includes a connecting shell 44 installed inside the switch drawer 25. The connecting shell 44 can be fixedly connected to the mounting base 39 or the limiting base 51 respectively by bolts or other basic connecting parts, so that the connecting shell 44 can adapt to these two anti-slip structures and improve the flexibility of the device. One end of each of the multiple connecting shells 44 is provided with a buffer sleeve 46 that can buffer pressure. The buffer sleeve 46 passes through the switch drawer 25 and is fixedly connected to it. The buffer sleeve 46 can be folded and extended. When the switch drawer 25 is slidably installed on the end face of the load-bearing plate 22, the buffer sleeve 46 will first contact the partition plate 20 on one side of the switch drawer 25. As the switch drawer 25 continues to move, it will squeeze the buffer sleeve 46, causing the buffer sleeve 46 to fold and buffer the movement of the switch drawer 25, preventing the switch drawer 25 from colliding with the partition plate 20 and affecting the service life of the device. The impact causes damage, while the folding deformation of the buffer sleeve 46 can absorb some of the kinetic energy.

[0039] Further reference Figure 9 , Figure 10 and Figure 11 Each of the multiple buffer sleeves 46 has a push rod 47 inside. One end of the push rod 47 extends into the interior of the connecting shell 44. Each of the multiple connecting shells 44 has a slidable limit block 45 inside. The bottom end of the limit block 45 has an ejection slope. One end of the push rod 47 slides in contact with the ejection slope. Each of the multiple limit blocks 45 has a slidable positioning plug 49 at the top end. Each positioning plug 49 is fixedly connected to the bottom end face of the load-bearing plate 22 above the switch drawer 25. The bottom end face of the positioning plug 49 has a slot corresponding to the limit block 45. Each of the two sides of the limit block 45 has a second return spring 48. By setting the second return spring 48, when the push rod 47 is disengaged from the limit block 45, the elastic potential energy can drive the limit block 45 to return to its original position.

[0040] When installing the switch drawer 25, the compressed buffer sleeve 46 presses against one end of the push rod 47, causing the push rod 47 to slide into the connecting housing 44. This allows one end of the push rod 47 to slide against the ejector ramp of the limit block 45. As the switch drawer 25 continues to move, the push rod 47 pushes up the limit block 45. The top end of the limit block 45 has an inclined limiting ramp 50. When the limit block 45 moves, it pushes the end with the limiting ramp 50 into the positioning insert 49, causing the limiting ramp 50 of the limit block 45 to enter the slot of the positioning insert 49. The internal structure has an inclined surface corresponding to the limiting inclined surface 50, which abuts against the inside of the slot, thereby limiting the limiting plug 45. At this time, the limiting plug 45 is locked in the positioning plug 49, thereby locking the upper load-bearing plate 22 and the lower switch drawer 25, thus improving the stability of the device. At this time, each switch drawer 25 is not only locked by the limiting threaded groove 24 and the worm gear 28, but also fixed to the top load-bearing plate 22, so that the switch drawer 25 and the cabinet 10 form a whole, making the switch drawer structure more stable and improving the vibration resistance of the overall structure.

[0041] Further reference Figure 7 , Figure 9 , Figure 10 and Figure 11 During the lifting process, the limit block 45 pulls the second return springs 48 on both sides, causing the two second return springs 48 to extend. When the switch drawer 25 needs to be disassembled, the switch drawer 25 moves, causing the top rod 47 to disengage from the limit block 45. The second return springs 48 recover their elastic potential energy and pull the limit block 45 back to its original position, causing the limit block 45 to disengage from the positioning plug 49. This allows the switch drawer 25 to be slidably disassembled. With this setting, before the switch drawer 25 needs to be pulled out, it is only necessary to rotate the rotating rod 26 to move the switch drawer 25 a certain distance first, ensuring that the internal circuit is disconnected, before the switch drawer 25 can be freely pulled out. When an external force collides with the cabinet 10, the limit block 45 will abut against the inside of the positioning plug 49, preventing the switch drawer 25 from sliding inside the cabinet 10, effectively improving the stability of the switch drawer 25.

[0042] The double-sided drawer-type intelligent switchgear of this invention uses common mechanical methods for installation and connection. The control of the driving components by similar detection devices, as well as the relevant detection methods and specific circuit relationships of each detection device, can all employ conventional electrical control technology. Any solution that can achieve the corresponding motion relationships and beneficial effects can be implemented. The intermediate relays, fuses, molded case circuit breakers 31, contactors, transformers, primary circuit plugs 35, moving plugs 34, secondary circuit pins 36, etc., in the double-sided drawer-type intelligent switchgear of this invention are all commercially available. Those skilled in the art only need to install and operate them according to the accompanying instruction manual, without requiring any creative effort from those skilled in the art.

[0043] The specification and claims use certain terms to refer to specific components. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0044] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0045] The foregoing description illustrates and describes several preferred embodiments of this application. However, as previously stated, it should be understood that this application is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the application concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this application should be within the protection scope of the appended claims.

Claims

1. A double-sided drawer-type intelligent switch cabinet, comprising a cabinet body (10), characterized in that, Multiple load-bearing plates (22) are provided inside the multiple cabinets (10). The multiple load-bearing plates (22) are arranged in two rows on both sides of the inside of the cabinets (10). Each load-bearing plate (22) has a sliding drawer (25) on its end face, so that the drawers (25) are arranged in two rows on both sides of the cabinets (10). Each set of load-bearing plates (22) has a partition plate (20) on one side. Each partition plate (20) has a connecting compartment (16) inside the cabinet (10) on one side. The switch drawer (25) is equipped with a fixed power supply module and a movable power supply module. When the switch drawer (25) is pushed into the cabinet (10), the fixed power supply module and the movable power supply module are connected to form a power supply circuit. The internal and external electrical appliances and connecting cables of the fixed power supply module are arranged in the connecting compartment (16). The switch drawer (25) and the cabinet (10) are equipped with anti-slip structures. The switch drawer (25) is also equipped with a buffer reinforcement structure. The buffer reinforcement structure and the anti-slip structure are installed together.

2. The double-sided drawer-type intelligent switch cabinet according to claim 1, characterized in that, Each of the multiple load-bearing plates (22) has a limiting thread groove (24) on its end face. Above the multiple limiting thread grooves (24), a connecting base (27) is provided on the end face of the switch drawer (25). A rotating rod (26) is rotatably provided inside the connecting base (27). A worm gear (28) is provided outside the rotating rod (26). The multiple worm gears (28) are meshed with the limiting thread grooves (24) for transmission. The rotating rod (26) rotates in both directions, causing the switch drawer (25) to slide inward and outward.

3. A double-sided drawer-type intelligent switch cabinet according to claim 1, characterized in that, The fixed power module includes multiple longitudinally mounted static plugs (19) disposed inside the connecting compartment (16). The wiring terminals of the multiple static plugs (19) extend into the interior of the switch drawer (25). A secondary circuit connection terminal (18) is provided on one side of the static plug (19) on the end face of the connecting compartment (16). A vertical busbar (21) is provided on one side of the static plug (19) on the end face of the partition plate (20).

4. A double-sided drawer-type intelligent switch cabinet according to claim 1, characterized in that, The mobile power-on module includes a primary main circuit plug-in (35) disposed on the end face of the switch drawer (25) near the partition plate (20). The primary main circuit plug-in (35) is connected to the vertical busbar (21). The end face of the switch drawer (25) is also provided with a movable plug-in (34) that is fastened to the stationary plug-in (19). On one side of the movable plug-in (34) on the end face of the switch drawer (25), a secondary circuit pin (36) is also provided. The secondary circuit pin (36) is connected to the secondary circuit connection end (18).

5. A double-sided drawer-type intelligent switch cabinet according to claim 1, characterized in that, The drawer (25) end face is provided with a drawer door (12), and the drawer door (12) is provided with a switch handle (14). The switch handle (14) is operated to lock the drawer door (12) and to close and open the circuit of the drawer (25).

6. A double-sided drawer-type intelligent switch cabinet according to claim 1, characterized in that, The anti-slip structure includes a protrusion (13) set at the bottom of each load-bearing plate (22), and a mounting base (39) on the inner wall of the switch drawer (25) below the load-bearing plate (22). A limit block (40) is elastically rotatably set inside the mounting base (39). The end of the limit block (40) near the protrusion (13) is tilted upward and can abut against the protrusion (13). After the limit block (40) is pressed down and disengaged from the protrusion (13), the switch drawer (25) is pulled out.

7. A double-sided drawer-type intelligent switch cabinet according to claim 6, characterized in that, The anti-slip structure also includes a dust cover (58) located outside the switch drawer (25) and inside the cabinet (10). The dust cover (58) is provided with a connecting horizontal plate (57) inside. Multiple toothed blocks are arranged on the end face of the connecting horizontal plate (57) near the switch drawer (25). A limiting base (51) is provided inside the switch drawer (25). A sliding rod (52) is elastically slidable inside the limiting base (51). The sliding rod (52) passes through the switch drawer (25) and is connected to a conical block (54). The conical block (54) abuts against the toothed block on the end face of the connecting horizontal plate (57) for limiting.

8. A double-sided drawer-type intelligent switch cabinet according to claim 7, characterized in that, One end of each of the multiple connecting horizontal plates (57) is provided with a guide block (59), and an anti-detachment groove (60) is provided between the multiple guide blocks (59) and the connecting horizontal plates (57). The anti-detachment groove (60) and the guide block (59) can abut against the conical block (54).

9. A double-sided drawer-type intelligent switch cabinet according to claim 1, characterized in that, The buffer reinforcement structure includes a connecting shell (44) disposed inside the switch drawer (25). One end of each of the multiple connecting shells (44) is provided with a buffer sleeve (46) capable of buffering pressure. Each of the multiple buffer sleeves (46) is provided with a push rod (47). One end of each of the multiple push rods (47) extends into the interior of the connecting shell (44). Each of the multiple connecting shells (44) is slidably provided with a limit plug (45). One top end of each of the multiple limit plugs (45) is slidably provided with a positioning plug (49). Each of the multiple positioning plugs (49) is fixedly connected to the bottom end face of the load-bearing plate (22). The bottom end face of the positioning plug (49) is provided with a slot corresponding to the limit plug (45).

10. A double-sided drawer-type intelligent switch cabinet according to claim 9, characterized in that, The connecting shell (44) is fixedly installed on the end face of the mounting base (39) or the limiting base (51).

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