A power distribution cabinet convenient for internal loading and unloading

Abstract

The present invention relates to the technical field of power supply devices, and discloses a power distribution cabinet that is easy to load and unload internally, including a cabinet body, a cabinet door installed on the cabinet body, and a mounting beam installed in the cabinet body, wherein the mounting beam includes a pair of vertical beams and a pair of horizontal beams, and a driving device is arranged between the cabinet door and one of the vertical beams, and a transmission device is arranged between the vertical beam and the horizontal beam, and the transmission device is in power transmission with the cabinet body. The present invention, through the arrangement of the driving device, drives the mounting beam to move outward while the cabinet door is opened, thereby enhancing the visibility of the accessories during installation, and at the same time, the mounting beam drives the transmission component to operate during the outward movement, and drives the clamping component and the fixing component to operate simultaneously, so that the clamping component no longer fixes the horizontal beam, and the fixing component no longer fixes the mounting seat, thereby solving the problem that the traditional power distribution cabinet is difficult to load and unload the accessories and the mounting beam due to the installation beam being too close to the inside and the corrosion of the screws by dust and condensed water.

Description

Technical Field

[0001] The invention relates to the technical field of power supply devices, in particular to a power distribution cabinet which is convenient for internal loading and unloading. Background Art

[0002] The distribution cabinet is divided into power distribution cabinet and lighting distribution cabinet. It is the final equipment of the distribution system. The distribution cabinet is a general term for the motor control center. The distribution cabinet is used in occasions where the load is relatively dispersed and there are fewer circuits. The motor control center is used in occasions where the load is concentrated and there are more circuits. It distributes the electric energy of a circuit of the upper-level distribution equipment to the nearest load. This level of equipment should provide protection, monitoring and control for the load.

[0003] When installing accessories in traditional distribution cabinets, the accessories are fixed to the mounting beams inside the distribution cabinet by screws. When the distribution cabinet is working, dust and condensation water are generated in the cabinet, which corrodes the screws, further causing damage to the screw threads, making it difficult to remove the accessories. At the same time, in existing distribution cabinets, the position of the mounting beams is biased towards the inside of the cabinet, which makes the visibility of the accessories too low when installing, making the accessories difficult to install.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a power distribution cabinet which is easy to load and unload internally. By setting a driving device, when the cabinet door is opened, the mounting beam is driven to move outward, thereby enhancing the visibility of the accessories during installation. At the same time, when the mounting beam moves outward, it drives the transmission assembly to operate, and drives the clamping assembly and the fixing assembly to operate simultaneously, so that the clamping assembly no longer fixes the crossbeam, and the fixing assembly no longer fixes the mounting seat, thereby solving the problem that the traditional power distribution cabinet is difficult to load and unload due to the mounting beam being too close to the inside and the corrosion of the screws by dust and condensed water.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a power distribution cabinet that is convenient for internal loading and unloading, comprising a cabinet body, a cabinet door installed on the cabinet body, and a mounting beam installed in the cabinet body, wherein the mounting beam comprises a pair of vertical beams and a pair of horizontal beams, a driving device is arranged between the cabinet door and one of the vertical beams, a transmission device is installed between the vertical beam and the horizontal beam, and the transmission device is in power transmission with the cabinet body;

[0007] The driving device includes a connecting piece, and the cabinet door moves toward the outside of the cabinet, and the vertical beam is driven to move toward the outside of the cabinet through the connecting piece, so that power is transmitted between the transmission device and the cabinet body, and the transmission device is driven to operate;

[0008] The transmission device comprises a transmission component, a clamping component and a fixing component. When the transmission component is in operation, the clamping component and the fixing component are driven to operate simultaneously.

[0009] The clamping assembly includes a pair of clamping plates, the crossbeam is arranged in front of the vertical beam and is in contact with the vertical beam, the pair of clamping plates are respectively located at the top and bottom of the vertical beam, and the transmission assembly controls the operation of the clamping assembly to drive the pair of clamping plates to move towards each other or move away from each other;

[0010] The fixing assembly includes a pair of clamping rods, a mounting seat is installed on the beam, the mounting seat includes a mounting plate and a base, the back of the mounting plate is in contact with the front of the beam, and the base extends to the back of the beam, the pair of clamping rods are located on the back of the beam and on both sides of the base respectively, and when the transmission assembly controls the operation of the fixing assembly, it drives the pair of clamping rods to move towards or away from each other.

[0011] Preferably, sliding grooves are provided at both ends of one side of the cabinet opening of the cabinet body, hinge keys are fixedly connected at both ends of one side of the cabinet door, the hinge keys are slidably arranged in the sliding grooves, and the cabinet door is movably hinged to the cabinet body through the hinge keys, guide rail blocks are fixedly connected at both ends of one side of the vertical beam, guide rail grooves are provided on both side walls of the cabinet body, guide rods are fixedly connected in the guide rail grooves, the guide rail blocks are slidably arranged in the guide rail grooves, rectangular grooves are provided on both side walls of the cabinet body, the rectangular grooves are arranged at one end of the guide grooves close to the cabinet door and are connected with the guide grooves, the guide rail block is slidably arranged in the rectangular groove, an open groove is provided on one side of the guide rail block, and the guide rail block is slidably connected to the guide rod through the open groove.

[0012] Preferably, the connecting part includes a limit plate, an inner groove is opened in one of the inner walls of the cabinet, the inner groove is connected with the guide rail groove and the sliding groove, the limit plate is slidably arranged in the inner groove, one side of a pair of guide rail blocks is opened with a limit groove, one end of the bottom of the limit plate is fixedly connected to the limit block, the limit block is consistent with the limit groove, one end of the limit plate is connected with a hinge plate, and the other end of the hinge plate is movably hinged to the hinge key.

[0013] Preferably, the transmission assembly includes a roller shaft, a plurality of rectangular holes are opened on the vertical beam, the roller shaft is arranged in the rectangular hole and is rotatably connected to the vertical beam through a bearing, both ends of the outer periphery of the roller shaft are fixedly connected with a main gear, and a plurality of heat dissipation ports are opened on the inner side walls of the cabinet body, and the main gear is meshedly connected to the cabinet body through the heat dissipation ports.

[0014] Preferably, both ends of the cross beam close to the vertical beam are fixedly connected with a plurality of fixing pins, the vertical beam is provided with a plurality of pin holes, the fixing pins pass through the pin holes and extend to the side of the vertical beam away from the cross beam, the clamping assembly also includes a first bidirectional screw, the first bidirectional screw is arranged in the rectangular hole and is rotatably connected to the vertical beam through a bearing, the two clamping plates are arranged on both sides of the outer periphery of the first bidirectional screw and are threadedly connected to the first bidirectional screw, slots are provided on both sides of the top and bottom of the cross beam, a clamping block is fixedly connected to one side of the clamping plate, the clamping block is consistent with the slot, the first tooth groove is provided at the middle part of the outer periphery of the roller shaft and the middle part of the outer periphery of the first bidirectional screw, the roller shaft and the outer periphery of the first bidirectional screw are provided with a first tooth belt, and the first tooth belt is meshed with the first tooth groove.

[0015] The cam is provided with a plurality of second double-direction screws, and a pair of clamping rods is provided at the outer periphery of the base, and a threaded sleeve is fixedly connected to the bottom of the clamping rod, and the threaded sleeve is threadedly connected to the second double-direction screw. Vertical grooves are provided on both sides of the base, and the clamping rod is consistent with the vertical groove, and one end of the rotating rod is fixedly connected to a worm gear, and a vertical shaft is provided in the rectangular hole, and the vertical shaft is rotatably connected to the vertical beam through a bearing, and a worm is fixedly connected to the bottom of the outer periphery of the vertical shaft, and the worm gear is meshed with the worm gear, and a second tooth groove is provided on the outer periphery of the vertical shaft and the first double-direction screw, and a second tooth belt is provided on the vertical shaft and the outer periphery of the first double-direction screw, and the second tooth belt meshes with the second tooth groove.

[0016] Preferably, a fixing part is provided on the mounting seat, a groove is provided on one side of the mounting plate, a guide shaft is fixedly connected in the groove, the fixing part includes a movable plate, movable blocks are fixedly connected at both ends of one side of the movable plate, the movable block is slidably arranged in the groove and sleeved outside the guide shaft, a rotating plate is hinged on one side of the movable plate, a torsion spring is installed at the hinge between the rotating plate and the movable plate, a cross groove is provided on one side of the rotating plate, a cross block is slidably connected in the cross groove, a limiting pin is fixedly connected to the bottom of the cross block, and a toggle block is fixedly connected to the top of the cross block.

[0017] Preferably, both sides of the base are provided with storage grooves, and a main board and a slave board hinged to each other are provided in the storage grooves. The main board is arranged in the storage groove near one end of the cross beam and is movably hinged to the base through a bearing. Both side walls in the storage groove are provided with embedded grooves, and both sides of one end of the slave board are rotatably connected with rectangular blocks through bearings. The rectangular block is slidably arranged in the embedded groove, and a guide shaft is fixedly connected in the embedded groove. The rectangular block is sleeved outside the guide shaft, and a spring is installed on the side of the rectangular block away from the main board, and the spring is sleeved outside the guide shaft.

[0018] Preferably, a switch device is provided between the cabinet door and the cabinet body, and the switch device includes four threaded rods, a transmission member for controlling the rotation of the threaded rods, and a rotating handle for driving the transmission member to operate. The four threaded rods are arranged at the four corners of the cabinet door close to the mounting beam, and an inner warehouse is provided on the cabinet door close to the mounting beam. The transmission member includes a control gear and four driving gears arranged on the outer periphery of the control gear. The driving gear is meshed and connected with the control gear. The driving gear and the control gear are both arranged in the inner warehouse and are rotatably connected to the cabinet door through bearings. One end of the threaded rod and one end of the driving gear are fixedly connected with a driven gear. The driven gear arranged at one end of the threaded rod is rotatably connected to the cabinet door through a bearing. A tooth chain is sleeved on the outer periphery of the driven gear, and the tooth chain is meshed and connected with the driven gear. The rotating handle is rotatably connected to the cabinet door through a bearing and one end is fixedly connected to the control gear. A plurality of fixing seats are fixedly connected to the inner wall of the cabinet body, and a threaded hole is provided on one side of the fixing seat, and the threaded rod is threadedly connected to the fixing seat through the threaded hole.

[0019] Compared with the prior art, the present invention provides a power distribution cabinet that is easy to load and unload internally, and has the following beneficial effects:

[0020] 1. A power distribution cabinet that is easy to load and unload internally. By setting a driving device, when the cabinet door is opened, the mounting beam is driven to move outward, so that the visibility of the accessories is enhanced during installation. At the same time, when the mounting beam moves outward, the transmission component is driven to operate, and the clamping component and the fixing component are driven to operate simultaneously, so that the clamping component no longer fixes the beam, and the fixing component no longer fixes the mounting seat, so that the accessories and the beam can be quickly and conveniently disassembled and assembled, and the problem of difficult assembly and disassembly of the accessories and the mounting beam in the traditional power distribution cabinet due to the mounting beam being too close to the inside and the corrosion of the screws by dust and condensed water is solved.

[0021] 2. A power distribution cabinet which is convenient for internal loading and unloading. Through the setting of a driving device, when the cabinet door moves outward, the guide blocks at both ends of one side of the vertical beam are driven to move in the guide groove. When the guide block moves into the rectangular groove, the sliding connection between the guide block and the rectangular groove makes the guide block detach from the rectangular groove when the cross beam moves away from the guide groove. Moreover, through the sliding connection between the open groove and the guide rod, and the matching between the limit block and the limit groove, the limit block and the guide rod are detached from the guide block, thereby achieving the effect of quick and convenient disassembly and assembly of the vertical beam.

[0022] 3. A power distribution cabinet that is easy to load and unload internally. The positions of the two moving plates are adjusted through the sliding connection between the moving plate and the groove so that one side of the moving plate is close to one side of the accessory. Then, the rotating plate is hinged with the moving plate so that the mounting component with the mounting hole on one side of the accessory is located between the rotating plate and the mounting plate. The rotating plate is reset by the elastic force provided by the torsion spring. During the resetting process of the rotating plate, the limit pins at the bottom of the cross block are located on the mounting components on both sides of the accessory. The position of the cross block and the limit pin is adjusted by moving the toggle block so that the limit pin is moved to the mounting hole of the accessory, thereby installing and fixing the accessory, which is convenient for loading and unloading of the accessory.

[0023] 4. A power distribution cabinet which is convenient for internal loading and unloading. Through the hinges between the main board and the slave board on both sides of the base, the hinges between one end of the main board and the base, the sliding between one end of the slave board and the base, and the elastic force provided by the spring, after the base passes through the square hole, the elastic force provided by the spring pushes one end of the slave board to move toward the main board, so that a certain angle is formed between the main board and the slave board, so that after the two clamping rods are separated from the vertical grooves, the mounting seat will not be separated from the cross beam when it is not fixed by the clamping rods, thereby avoiding the problem of the mounting seat and the accessories on the mounting seat falling and being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the power distribution cabinet of the present invention;

[0025] Figure 2 It is a schematic diagram of the internal structure of the cabinet of the present invention;

[0026] Figure 3 It is a schematic diagram of the transmission structure of the present invention;

[0027] Figure 4 For the present invention Figure 3 Schematic diagram of the structure of the middle A part;

[0028] Figure 5 This is one of the schematic diagrams of the structure of the driving device of the present invention;

[0029] Figure 6 For the present invention Figure 5 Schematic diagram of the structure of the middle B part;

[0030] Figure 7 This is the second schematic diagram of the structure of the driving device of the present invention;

[0031] Figure 8 For the present invention Figure 7 Schematic diagram of the structure of the middle C part;

[0032] Fig. 9 It is a schematic diagram of the transmission assembly structure of the present invention;

[0033] Fig.10 For the present invention Fig. 9 Schematic diagram of the structure of the middle D part;

[0034] Fig.11 It is a schematic diagram of the structure of the clamping assembly and the fixing assembly of the present invention;

[0035] Fig.12 For the present invention Fig.11 Schematic diagram of the structure of the middle E part;

[0036] Fig.13 It is a schematic diagram of the mounting seat structure of the present invention;

[0037] Fig.14 For the present invention Fig.13 Schematic diagram of the structure of the middle F section;

[0038] Fig.15 It is a schematic diagram of the structure of the switch device of the present invention;

[0039] Fig.16 For the present invention Fig.15 Schematic diagram of the H section structure.

[0040] In the figure: 1, cabinet body; 2, cabinet door; 3, mounting beam; 31, vertical beam; 32, horizontal beam; 4, driving device; 5, transmission device; 41, connecting piece; 51, transmission assembly; 52, clamping assembly; 53, fixing assembly; 520, clamping plate; 530, clamping rod; 6, mounting seat; 61, mounting plate; 62, base; 42, sliding groove; 43, hinge key; 44, guide block; 45, guide groove; 4 6. Guide rod; 47. Rectangular groove; 48. Open groove; 411. Limit plate; 412. Inner groove; 413. Limit groove; 414. Hinge plate; 415. Limit block; 511. Roller; 7. Rectangular hole; 512. Main gear; 513. Heat dissipation port; 33. Fixing pin; 521. First bidirectional screw; 522. Slot; 523. Block; 524. First tooth groove; 525. First tooth belt; 3 4, square hole; 35, square groove; 531, rotating rod; 532, second bidirectional screw; 533, threaded sleeve; 534, vertical groove; 535, worm wheel; 536, vertical shaft; 537, worm; 538, second tooth groove; 539, second tooth belt; 63, fixing member; 64, groove; 631, moving plate; 632, moving block; 633, rotating plate; 634, torsion spring; 635, cross groove; 636 , limit pin; 637, cross block; 638, toggle block; 65, storage slot; 639, main board; 6310, slave board; 6311, embedded slot; 6312, rectangular block; 6313, spring; 8, switch device; 81, threaded rod; 82, transmission part; 83, turning handle; 84, fixing seat; 821, control gear; 822, driving gear; 823, driven gear; 824, tooth chain. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a distribution cabinet that is easy to load and unload internally.

[0043] See also Figure 1-Figure 4 A power distribution cabinet that is convenient for internal loading and unloading, comprising a cabinet body 1, a cabinet door 2 installed on the cabinet body 1, and a mounting beam 3 installed in the cabinet body 1, wherein the mounting beam 3 comprises a pair of vertical beams 31 and a pair of horizontal beams 32, a driving device 4 is arranged between the cabinet door 2 and one of the vertical beams 31, a transmission device 5 is installed between the vertical beam 31 and the horizontal beam 32, and the transmission device 5 is in power transmission with the cabinet body 1;

[0044] The driving device 4 includes a connecting member 41. The cabinet door 2 moves out of the cabinet body 1, and the connecting member 41 drives the vertical beam 31 to move out of the cabinet body 1, so that power is transmitted between the transmission device 5 and the cabinet body 1, and drives the transmission device 5 to operate;

[0045] The transmission device 5 includes a transmission component 51, a clamping component 52 and a fixing component 53. When the transmission component 51 is in operation, the clamping component 52 and the fixing component 53 are driven to operate simultaneously;

[0046] The clamping assembly 52 includes a pair of clamping plates 520. The horizontal beam 32 is arranged in front of the vertical beam 31 and is in close contact with the vertical beam 31. The pair of clamping plates 520 are respectively located at the top and bottom of the vertical beam 31. When the transmission assembly 51 controls the operation of the clamping assembly 52, the pair of clamping plates 520 are driven to move toward each other or move away from each other.

[0047] The fixing assembly 53 includes a pair of clamping rods 530. A mounting seat 6 is installed on the beam 32. The mounting seat 6 includes a mounting plate 61 and a base 62. The back of the mounting plate 61 is in contact with the front of the beam 32, and the base 62 extends to the back of the beam 32. A pair of clamping rods 530 are located on the back of the beam 32 and on both sides of the base 62. When the transmission assembly 51 controls the operation of the fixing assembly 53, it drives the pair of clamping rods 530 to move towards each other or away from each other.

[0048] Specifically, when the cabinet door 2 moves outward from the cabinet body 1, the mounting beam 3 is driven to move outward through the connecting piece 41. During the outward movement of the mounting beam 3, the transmission device 5 on the mounting beam 3 is driven to operate. When the transmission component 51 is operated, the transmission component 51 drives the clamping component 52 and the fixing component 53 to operate simultaneously. The operation of the clamping component 52 causes the two clamping plates 520 to move backwards, so that the clamping component 52 no longer fixes the cross beam 32. The operation of the fixing component 53 causes the two clamping rods 530 to move backwards, so that the fixing device no longer fixes the mounting seat 6, thereby making the vertical beam 31 on one side of the cross beam 32 and the mounting seat 6 on one side of the vertical beam 31 active, which is convenient for the installation and removal of the vertical beam 31 and the mounting seat 6.

[0049] By setting the driving device 4, when the cabinet door 2 is opened, the mounting beam 3 is driven to move outward, so that the visibility of the accessories is enhanced during installation. At the same time, when the mounting beam 3 moves outward, it drives the transmission component 51 to operate, and drives the clamping component 52 and the fixing component 53 to operate simultaneously, so that the clamping component 52 no longer fixes the cross beam 32, and the fixing component 53 no longer fixes the mounting seat 6, so as to achieve quick and convenient disassembly and assembly of the accessories and the cross beam 32, and solves the problem that the traditional distribution cabinet is difficult to load and unload due to the mounting beam 3 being too close to the inside and the corrosion of the screws by dust and condensed water.

[0050] Further, see Figure 5-Figure 8 For the above-mentioned driving device 4, sliding grooves 42 are provided at both ends of one side of the cabinet opening of the cabinet body 1, hinge keys 43 are fixedly connected at both ends of one side of the cabinet door 2, and the hinge keys 43 are slidably arranged in the sliding grooves 42. The cabinet door 2 is movably hinged to the cabinet body 1 through the hinge keys 43. Guide rail blocks 44 are fixedly connected at both ends of one side of the vertical beam 31. Guide rail grooves 45 are provided on both side walls of the cabinet body 1. Guide rods 46 are fixedly connected in the guide rail grooves 45. The guide rail blocks 44 are slidably arranged in the guide rail grooves 45. Rectangular grooves 47 are provided on both side walls of the cabinet body 1. The rectangular grooves 47 are arranged at one end of the guide rail grooves 45 close to the cabinet door 2 and are connected to the guide grooves 45. The guide rail blocks 44 are slidably arranged in the rectangular grooves 47. An opening groove 48 is provided on one side of the guide rail blocks 44. The guide rail blocks 44 are slidably connected to the guide rods 46 through the opening grooves 48.

[0051] The connecting member 41 includes a limit plate 411, an inner groove 412 is provided in one of the inner walls of the cabinet 1, the inner groove 412 is communicated with the guide groove 45 and the sliding groove 42, the limit plate 411 is slidably arranged in the inner groove 412, a limit groove 413 is provided on one side of a pair of guide rail blocks 44, one end of the bottom of the limit plate 411 is fixedly connected to the limit block 415, the limit block 415 is consistent with the limit groove 413, one end of the limit plate 411 is connected to the hinge plate 414, and the other end of the hinge plate 414 is movably hinged to the hinge key 43;

[0052] Specifically, the cabinet door 2 can be moved outward by the sliding connection between the sliding groove 42 and the hinge key 43. During the outward movement of the cabinet door 2, the connecting member 41 is driven to move outward in the inner groove 412. The matching setting between the limit block 415 and the limit groove 413 makes it possible for the connecting member 41 to move outward, thereby driving the guide block 44 on one side of the vertical beam 31 to move outward, thereby driving the mounting beam 3 and the cabinet door 2 to move synchronously. When the hinge key 43 on one side of the cabinet door 2 moves to the other end of the sliding groove 42, the guide block 44 on one side of the vertical beam 31 moves into the rectangular groove 47. The setting of the sliding connection between the guide block 44 and the rectangular groove 47 makes it possible for the guide block 44 to move in the horizontal direction when the vertical beam 31 moves. The block 44 can be separated from the rectangular groove 47. At the same time, through the sliding connection between the limit block 415 and the limit groove 413, and the sliding connection between the open groove 48 and the guide rod 46, when the guide block 44 moves in the horizontal direction, the guide block 44 can be separated from the limit block 415 and the guide rod 46, so that after the mounting beam 3 moves toward the cabinet opening of the cabinet body 1 and moves to a certain position, the vertical beam 31 can be quickly disassembled and assembled. When the cabinet door 2 moves to the cabinet opening of the cabinet body 1, the hinge key 43 is hinged to the cabinet body 1 in the sliding groove 42, and the two ends of the hinge plate 414 are respectively hinged to the hinge key 43 and the limit plate 411, so that the cabinet door 2 can be freely rotated and opened.

[0053] Further, see Figure 9-12 For the transmission device 5, the transmission assembly 51 includes a roller shaft 511, a plurality of rectangular holes 7 are formed on the vertical beam 31, the roller shaft 511 is disposed in the rectangular hole 7 and is rotatably connected to the vertical beam 31 through a bearing, main gears 512 are fixedly connected to both ends of the outer periphery of the roller shaft 511, a plurality of heat dissipation openings 513 are formed on both side walls of the cabinet body 1, and the main gear 512 is meshedly connected to the cabinet body 1 through the heat dissipation openings 513;

[0054] A plurality of fixing pins 33 are fixedly connected at both ends of the side of the cross beam 32 close to the vertical beam 31, and a plurality of pin holes are provided on the vertical beam 31. The fixing pins 33 pass through the pin holes and extend to the side of the vertical beam 31 away from the cross beam 32. The clamping assembly 52 also includes a first bidirectional screw 521, which is arranged in the rectangular hole 7 and is rotatably connected to the vertical beam 31 through a bearing. Two clamping plates 520 are arranged on both sides of the outer periphery of the first bidirectional screw 521 and are threadedly connected to the first bidirectional screw 521. A clamping groove 522 is provided on both sides of the top and bottom of the cross beam 32. A clamping block 523 is fixedly connected to one side of the clamping plate 520, and the clamping block 523 is consistent with the clamping groove 522. A first tooth groove 524 is provided at the middle part of the outer periphery of the roller shaft 511 and the middle part of the outer periphery of the first bidirectional screw 521. A first tooth belt 525 is sleeved on the outer periphery of the roller shaft 511 and the first bidirectional screw 521, and the first tooth belt 525 meshes with the first tooth groove 524.

[0055] A plurality of square holes 34 are provided on one side of the crossbeam 32 near the cabinet door 2, the base 62 passes through the square holes 34 and extends to the other side of the crossbeam 32, a square groove 35 is provided on one side of the crossbeam 32 near the vertical beam 31, the fixing assembly 53 also includes a rotating rod 531, the rotating rod 531 is rotatably arranged in the square groove 35 through a bearing and is located at the bottom of the base 62, a plurality of second bidirectional screws 532 are fixedly connected to the outer periphery of the rotating rod 531, a pair of clamping rods 530 are provided on both sides of the base 62, a threaded sleeve 533 is fixedly connected to the bottom of the clamping rod 530, the threaded sleeve 533 is threadedly connected to the second bidirectional screw 532, and the base Vertical grooves 534 are provided on both sides of the 62, and the clamping rod 530 is consistent with the vertical grooves 534. A worm wheel 535 is fixedly connected to one end of the rotating rod 531. A vertical shaft 536 is provided in the rectangular hole 7. The vertical shaft 536 is rotatably connected to the vertical beam 31 through a bearing. A worm 537 is fixedly connected to the bottom of the outer periphery of the vertical shaft 536. The worm 537 is meshed with the worm wheel 535. A second tooth groove 538 is provided on the outer periphery of the vertical shaft 536 and the outer periphery of the first bidirectional screw 521. A second tooth belt 539 is sleeved on the outer periphery of the vertical shaft 536 and the first bidirectional screw 521. The second tooth belt 539 is meshed with the second tooth groove 538.

[0056] Specifically, when the mounting beam 3 is moved outward by the setting of the driving device 4, the main gears 512 at both ends of the roller shaft 511 are meshed and connected with the heat dissipation outlet 513 on the inner wall of the cabinet body 1, so that the vertical beam 31 moves toward the cabinet opening of the cabinet body 1, driving the main gear 512 to rotate, thereby driving the roller shaft 511 to rotate, and the meshing connection between the first tooth groove 524 on the periphery of the roller shaft 511 and the periphery of the first bidirectional screw 521 and the first toothed belt 525 makes the first bidirectional screw 521 rotate when the roller shaft 511 rotates, and the two The threaded connection between the two clamping plates 520 and the first bidirectional screw rod 521 drives the two first clamping plates 520 to move backwards, so that the clamping block 523 on one side of the clamping plate 520 is disengaged from the clamping groove 522, so that the clamping plate 520 no longer fixes the cross beam 32. Through the sleeve connection between the fixing pin 33 and the pin hole, when the clamping plate 520 no longer fixes the cross beam 32, the cross beam 32 will not fall away from the vertical beam 31, and when the cross beam 32 moves forward in the horizontal direction, the fixing pin 33 is disengaged from the pin hole, thereby facilitating the disassembly and assembly of the cross beam 32.

[0057] At the same time, when the first bidirectional screw 521 rotates, the vertical shaft 536 is driven to rotate through the meshing connection between the second tooth groove 538 and the second toothed belt 539 on the outer periphery of the first bidirectional screw 521 and the outer periphery of the vertical shaft 536, thereby driving the worm 537 to rotate, and the meshing connection between the worm wheel 535 and the worm 537 drives the worm 537 to rotate, thereby driving the rotating rod 531 to rotate, and through the threaded connection between the second bidirectional screw 532 and the threaded sleeve 533 on the outer periphery of the rotating rod 531, the two clamping rods 530 are driven to move backwards, thereby making the clamping rod 530 disengage from the vertical groove 534, and then making the clamping rod 530 no longer fix the mounting seat 6, thereby facilitating the disassembly and assembly of the mounting seat 6.

[0058] Further, see Figure 13-14 , for the above-mentioned mounting seat 6, a fixing member 63 is provided on the mounting seat 6, a groove 64 is provided on one side of the mounting plate 61, a guide shaft is fixedly connected in the groove 64, the fixing member 63 includes a moving plate 631, both ends of one side of the moving plate 631 are fixedly connected with moving blocks 632, the moving block 632 is slidably arranged in the groove 64 and sleeved outside the guide shaft, a rotating plate 633 is hinged on one side of the moving plate 631, a torsion spring 634 is installed at the hinge between the rotating plate 633 and the moving plate 631, a cross groove 635 is provided on one side of the rotating plate 633, a cross block 637 is slidably connected in the cross groove 635, a limiting pin 636 is fixedly connected to the bottom of the cross block 637, and a toggle block 638 is fixedly connected to the top of the cross block 637;

[0059] Specifically, conventional accessories will have mounting holes for installation. The accessory is placed on the mounting plate 61. The positions of the two movable plates 631 are adjusted through the sliding connection between the movable plate 631 and the groove 64 so that one side of the movable plate 631 is close to one side of the accessory. Then, the rotating plate 633 is hinged with the movable plate 631 so that the rotating plate 633 is rotated upward, and the mounting component with the mounting hole on one side of the accessory is located between the rotating plate 633 and the mounting plate 61. The rotating plate 633 is reset by the elastic force provided by the torsion spring 634. During the resetting process of the rotating plate 633, the limit pin 636 at the bottom of the cross block 637 is located on the mounting components on both sides of the accessory. The position of the cross block 637 and the limit pin 636 is adjusted by moving the toggle block 638 so that the limit pin 636 is moved to the mounting hole of the accessory, thereby installing and fixing the accessory.

[0060] Further, see Figure 15-16For the above-mentioned mounting seat 6, both sides of the base 62 are provided with receiving grooves 65, and the receiving grooves 65 are provided with a main board 639 and a slave board 6310 that are hinged to each other. The main board 639 is arranged in the receiving groove 65 near one end of the beam 32 and is movably hinged to the base 62 through a bearing. Both side walls in the receiving groove 65 are provided with embedded grooves 6311, and both sides of one end of the slave board 6310 are rotatably connected with a rectangular block 6312 through a bearing. The rectangular block 6312 is slidably arranged in the embedded groove 6311, and a guide shaft is fixedly connected in the embedded groove 6311. The rectangular block 6312 is sleeved outside the guide shaft. A spring 6313 is installed on the side of the rectangular block 6312 away from the main board 639, and the spring 6313 is sleeved outside the guide shaft.

[0061] Specifically, when the mounting base 6 is installed, pressure is applied to the main board 639. Through the hinge between one end of the main board 639 and the base 62, the main board 639 rotates toward the receiving groove 65. Through the hinge between the main board 639 and the slave board 6310, and the sliding connection between one end of the slave board 6310 and the embedded groove 6311, the main board 639 and the slave board 6310 gradually change from the angled state to the horizontal state with respect to each other, so that the main board 639 and the slave board 6310 are received in the receiving groove 65, and the spring 6313 is in a squeezed state. Then, the base 62 is passed through the square hole 34. When the base 62 completely passes through the square hole 34, the main board 639 is no longer squeezed, and the elastic force provided by the spring 6313 pushes one end of the slave plate 6310 to move toward the main board 639, so that a certain angle is formed between the main board 639 and the slave plate 6310. As a result, after the two clamping rods 530 are separated from the vertical grooves 534, the mounting seat 6 will not be separated from the cross beam 32 when it is not fixed by the clamping rods 530, thereby avoiding the problem of the mounting seat 6 and the accessories on the mounting seat 6 falling and being damaged.

[0062] Further, see Figure 1-Figure 8For the above-mentioned cabinet door 2, a switch device 8 is arranged between the cabinet door 2 and the cabinet body 1, and the switch device 8 includes four threaded rods 81, a transmission member 82 for controlling the rotation of the threaded rods 81, and a rotating handle 83 for driving the transmission member 82 to operate. The four threaded rods 81 are arranged at the four corners of the cabinet door 2 close to the mounting beam 3, and the cabinet door 2 is provided with an inner bin on the side close to the mounting beam 3. The transmission member 82 includes a control gear 821 and four driving gears 822 arranged on the outer periphery of the control gear 821. The driving gear 822 is meshed and connected with the control gear 821. The driving gear 822 and the control gear 821 are both arranged in the inner bin and The driven gear 823 is fixedly connected to the cabinet door 2 through a bearing, and one end of the threaded rod 81 and one end of the driving gear 822 are both fixedly connected to a driven gear 823. The driven gear 823 arranged at one end of the threaded rod 81 is rotatably connected to the cabinet door 2 through a bearing. A toothed chain 824 is sleeved on the outer periphery of the driven gear 823. The toothed chain 824 is meshedly connected with the driven gear 823. The rotating handle 83 is rotatably connected to the cabinet door 2 through a bearing and one end is fixedly connected to the control gear 821. A plurality of fixing seats 84 are fixedly connected to the inner wall of the cabinet body 1. A threaded hole is opened on one side of the fixing seat 84. The threaded rod 81 is threadedly connected to the fixing seat 84 through the threaded hole.

[0063] Specifically, the control handle 83 is rotated to drive the control gear 821 to rotate. The four driving gears 822 are located at the outer four corners of the control gear 821. The control gear 821 drives the four driving gears 822 to rotate, thereby driving the driven gear 823 fixedly connected to the driving gear 822 to rotate. Through the meshing connection between the two driven gears 823 and the tooth chain 824, the driven gear 823 at one end of the threaded rod 81 is driven to rotate, thereby driving the threaded rod 81 to rotate. Through the threaded connection between the threaded rod 81 and the fixed seat 84, the cabinet door 2 is driven to move outward during the rotation of the threaded rod 81. When the hinge key 43 at one end of the cabinet door 2 moves to one end of the sliding groove 42, the threaded rod 81 is disengaged from the fixed seat 84, thereby allowing the cabinet door 2 to open.

[0064] Working principle: When it is necessary to disassemble or assemble accessories, the control handle 83 is rotated to drive the control gear 821 to rotate. The four driving gears 822 are located at the outer four corners of the control gear 821. The control gear 821 drives the four driving gears 822 to rotate, thereby driving the driven gear 823 fixedly connected to the driving gear 822 to rotate. Through the meshing connection between the two driven gears 823 and the toothed chain 824, the driven gear 823 at one end of the threaded rod 81 is driven to rotate, thereby driving the threaded rod 81 to rotate. Through the threaded connection between the threaded rod 81 and the fixed seat 84, the threaded rod 81 is rotated, and the cabinet door 2 is driven to move outward. When the hinge key 43 at one end of the cabinet door 2 moves to one end of the sliding groove 42, the threaded rod 81 is separated from the fixed seat 84, so that the cabinet door 2 is opened;

[0065] When the cabinet door 2 moves outward, the connecting member 41 is driven to move outward in the inner groove 412. The matching arrangement between the limit block 415 and the limit groove 413 allows the connecting member 41 to move outward, thereby driving the guide block 44 on one side of the vertical beam 31 to move outward, thereby driving the mounting beam 3 and the cabinet door 2 to move synchronously.

[0066] When the mounting beam 3 is moved outward by the setting of the driving device 4, the main gears 512 at both ends of the roller shaft 511 are meshed with the heat dissipation openings 513 on the inner wall of the cabinet body 1, so that the vertical beam 31 moves toward the cabinet opening of the cabinet body 1, driving the main gear 512 to rotate, thereby driving the roller shaft 511 to rotate, and the first tooth groove 524 on the outer periphery of the roller shaft 511 and the outer periphery of the first bidirectional screw 521 and the first toothed belt 525 are meshed, so that when the roller shaft 511 rotates, the first bidirectional screw 521 is driven to rotate, and the two clamps are connected. The threaded connection between the plate 520 and the first bidirectional screw 521 drives the two first clamping plates 520 to move backwards, so that the clamping block 523 on one side of the clamping plate 520 is disengaged from the clamping groove 522, so that the clamping plate 520 no longer fixes the cross beam 32. Through the sleeve connection between the fixing pin 33 and the pin hole, when the clamping plate 520 no longer fixes the cross beam 32, the cross beam 32 will not fall away from the vertical beam 31. When the cross beam 32 moves forward in the horizontal direction, the fixing pin 33 is disengaged from the pin hole, thereby facilitating the disassembly and assembly of the cross beam 32.

[0067] At the same time, when the first bidirectional screw 521 rotates, the meshing connection between the second tooth groove 538 and the second toothed belt 539 on the outer periphery of the first bidirectional screw 521 and the outer periphery of the vertical shaft 536 drives the vertical shaft 536 to rotate, thereby driving the worm 537 to rotate, and the meshing connection between the worm wheel 535 and the worm 537 drives the worm 537 to rotate, thereby driving the rotating rod 531 to rotate, and the threaded connection between the second bidirectional screw 532 and the threaded sleeve 533 on the outer periphery of the rotating rod 531 drives the two clamping rods 530 to move backwards, so that the clamping rod 530 is separated from the vertical groove 534, and then the clamping rod 530 no longer fixes the mounting seat 6, thereby facilitating the disassembly and assembly of the mounting seat 6;

[0068] When the cross beam 32 is removed and the hinge key 43 on one side of the cabinet door 2 moves to the other end of the sliding groove 42, the guide block 44 on one side of the vertical beam 31 moves into the rectangular groove 47. The sliding connection between the guide block 44 and the rectangular groove 47 allows the guide block 44 to be separated from the rectangular groove 47 when the vertical beam 31 moves horizontally. At the same time, the sliding connection between the limit block 415 and the limit groove 413, and the sliding connection between the open groove 48 and the guide rod 46 allow the guide block 44 to be separated from the limit block 415 and the guide rod 46 when the guide block 44 moves horizontally. As a result, after the mounting beam 3 moves toward the cabinet opening of the cabinet body 1 and moves to a certain position, the vertical beam 31 can be quickly disassembled and assembled.

[0069] When the accessory needs to be installed on the cross beam 32, the accessory is placed on the mounting plate 61, and the positions of the two movable plates 631 are adjusted through the sliding connection between the movable plate 631 and the groove 64, so that one side of the movable plate 631 is close to one side of the accessory, and then the rotating plate 633 is hinged with the movable plate 631 to rotate upward, and the mounting component with the mounting hole on one side of the accessory is located between the rotating plate 633 and the mounting plate 61, and the rotating plate 633 is reset by the elastic force provided by the torsion spring 634. During the resetting process of the rotating plate 633, the limit pin 636 at the bottom of the cross block 637 is located on the mounting components on both sides of the accessory. By moving the toggle block 638 and adjusting the positions of the cross block 637 and the limit pin 636, the limit pin 636 is moved to the mounting hole of the accessory, so that the accessory is installed and fixed. When installing, the mounting seat 6 applies pressure to the main board 639, and the main board 6 39 is hinged between one end of the main board 639 and the base 62, and the main board 639 rotates toward the receiving groove 65. Through the hinge between the main board 639 and the slave board 6310, and the sliding connection between one end of the slave board 6310 and the embedded groove 6311, the main board 639 and the slave board 6310 are gradually transformed from an angled state to a mutually horizontal state, so that the main board 639 and the slave board 6310 are stored in the receiving groove 65, and the spring 6313 is in an extruded state, and then the base 62 is passed through the square hole 34. When the base 62 completely passes through the square hole 34, the main board 639 is no longer squeezed, and the elastic force provided by the spring 6313 pushes one end of the slave board 6310 to move toward the main board 639, so that a certain angle is formed between the main board 639 and the slave board 6310, so that after the two clamping rods 530 are separated from the vertical groove 534, the mounting seat 6 will not be separated from the cross beam 32 when it is not fixed by the clamping rod 530.

[0070] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A power distribution cabinet that is easy to load and unload internally, comprising a cabinet body (1), a cabinet door (2) installed on the cabinet body (1), and a mounting beam (3) installed in the cabinet body (1), characterized in that: The mounting beam (3) comprises a pair of vertical beams (31) and a pair of horizontal beams (32); a driving device (4) is provided between the cabinet door (2) and one of the vertical beams (31); a transmission device (5) is installed between the vertical beam (31) and the horizontal beam (32); the transmission device (5) transmits power to the cabinet body (1); The driving device (4) comprises a connecting member (41), and the cabinet door (2) moves outward from the cabinet body (1), and the connecting member (41) drives the vertical beam (31) to move outward from the cabinet body (1), so that power is transmitted between the transmission device (5) and the cabinet body (1), and drives the transmission device (5) to operate; The transmission device (5) comprises a transmission component (51), a clamping component (52) and a fixing component (53); when the transmission component (51) is in operation, it drives the clamping component (52) and the fixing component (53) to operate simultaneously; The clamping assembly (52) comprises a pair of clamping plates (520), the cross beam (32) is arranged in front of the vertical beam (31) and is in close contact with the vertical beam (31), the pair of clamping plates (520) are respectively located at the top and bottom of the vertical beam (31), and when the transmission assembly (51) controls the operation of the clamping assembly (52), the pair of clamping plates (520) are driven to move towards each other or move away from each other; The fixing assembly (53) comprises a pair of clamping rods (530), a mounting seat (6) is mounted on the cross beam (32), the mounting seat (6) comprises a mounting plate (61) and a base (62), the back side of the mounting plate (61) is in contact with the front side of the cross beam (32), and the base (62) extends to the back side of the cross beam (32), the pair of clamping rods (530) are located on the back side of the cross beam (32) and are respectively located on both sides of the base (62), and when the transmission assembly (51) controls the operation of the fixing assembly (53), the pair of clamping rods (530) are driven to move towards each other or away from each other; The cabinet body (1) has sliding grooves (42) at both ends of one side of the cabinet opening, and the cabinet door (2) has hinge keys (43) fixedly connected at both ends of one side, and the hinge keys (43) are slidably arranged in the sliding grooves (42). The cabinet door (2) is movably hinged to the cabinet body (1) through the hinge keys (43). The vertical beam (31) has guide rail blocks (44) fixedly connected at both ends of one side, and the inner side walls of the cabinet body (1) have guide rail grooves (45), and the guide rail blocks (45) are fixedly connected in the guide rail grooves (45). The guide rail block (44) is slidably arranged in the guide rail groove (45), and both side walls of the cabinet body (1) are provided with rectangular grooves (47). The rectangular groove (47) is arranged at one end of the guide rail groove (45) close to the cabinet door (2) and is connected to the guide rail groove (45). The guide rail block (44) is slidably arranged in the rectangular groove (47), and an open groove (48) is formed on one side of the guide rail block (44). The guide rail block (44) is slidably connected to the guide rod (46) through the open groove (48); The connecting member (41) comprises a limit plate (411), an inner groove (412) is provided in one of the inner walls of the cabinet (1), the inner groove (412) is communicated with the guide rail groove (45) and the sliding groove (42), the limit plate (411) is slidably arranged in the inner groove (412), a limit groove (413) is provided on one side of a pair of guide rail blocks (44), one end of the bottom of the limit plate (411) is fixedly connected to the limit block (415), the limit block (415) is matched with the limit groove (413), one end of the limit plate (411) is connected to a hinge plate (414), and the other end of the hinge plate (414) is movably hinged to the hinge key (43); The transmission assembly (51) comprises a roller shaft (511), a plurality of rectangular holes (7) are formed on the vertical beam (31), the roller shaft (511) is arranged in the rectangular hole (7) and is rotatably connected to the vertical beam (31) via a bearing, main gears (512) are fixedly connected to both ends of the outer periphery of the roller shaft (511), a plurality of heat dissipation openings (513) are formed on both side walls of the cabinet body (1), and the main gear (512) is meshedly connected to the cabinet body (1) via the heat dissipation openings (513).

2. A power distribution cabinet that is convenient for internal loading and unloading according to claim 1, characterized in that: A plurality of fixing pins (33) are fixedly connected to both ends of a side of the cross beam (32) close to the vertical beam (31); a plurality of pin holes are formed on the vertical beam (31); the fixing pins (33) pass through the pin holes and extend to a side of the vertical beam (31) away from the cross beam (32); the clamping assembly (52) further comprises a first bidirectional screw rod (521); the first bidirectional screw rod (521) is disposed in the rectangular hole (7) and is rotatably connected to the vertical beam (31) via a bearing; the two clamping plates (520) are disposed on both sides of the outer periphery of the first bidirectional screw rod (521) and are connected to the first bidirectional screw rod (521). The rod (521) is threadedly connected, the top and bottom sides of the cross beam (32) are both provided with a clamping groove (522), one side of the clamping plate (520) is fixedly connected with a clamping block (523), the clamping block (523) is matched with the clamping groove (522), the middle part of the outer circumference of the roller shaft (511) and the middle part of the outer circumference of the first bidirectional screw (521) are both provided with a first tooth groove (524), the outer circumference of the roller shaft (511) and the first bidirectional screw (521) are sleeved with a first tooth belt (525), and the first tooth belt (525) is meshed with the first tooth groove (524).

3. A power distribution cabinet that is convenient for internal loading and unloading according to claim 2, characterized in that: A plurality of square holes (34) are provided on one side of the crossbeam (32) close to the cabinet door (2); the base (62) passes through the square holes (34) and extends to the other side of the crossbeam (32); a square groove (35) is provided on one side of the crossbeam (32) close to the vertical beam (31); the fixing assembly (53) further comprises a rotating rod (531); the rotating rod (531) is rotatably arranged in the square groove (35) through a bearing and is located at the bottom of the base (62); a plurality of second bidirectional screws (532) are fixedly connected to the outer periphery of the rotating rod (531); a pair of clamping rods (530) are provided on both sides of the base (62); a threaded sleeve (533) is fixedly connected to the bottom of the clamping rod (530); the threaded sleeve (533) is threadedly connected to the second bidirectional screw (532); the base A vertical groove (534) is provided on both sides of the first and second bidirectional screw rods (521). The clamping rod (530) matches the vertical groove (534). A worm wheel (535) is fixedly connected to one end of the rotating rod (531). A vertical shaft (536) is provided in the rectangular hole (7). The vertical shaft (536) is rotatably connected to the vertical beam (31) through a bearing. A worm (537) is fixedly connected to the bottom of the outer periphery of the vertical shaft (536). The worm (537) meshes with the worm wheel (535). A second tooth groove (538) is provided on the outer periphery of the vertical shaft (536) and the outer periphery of the first bidirectional screw rod (521). A second tooth belt (539) is sleeved on the outer periphery of the vertical shaft (536) and the first bidirectional screw rod (521). The second tooth belt (539) meshes with the second tooth groove (538).

4. A power distribution cabinet that is convenient for internal loading and unloading according to claim 3, characterized in that: The mounting seat (6) is provided with a fixing member (63); a groove (64) is provided on one side of the mounting plate (61); a guide shaft is fixedly connected in the groove (64); the fixing member (63) comprises a moving plate (631); moving blocks (632) are fixedly connected at both ends of one side of the moving plate (631); the moving blocks (632) are slidably arranged in the groove (64) and sleeved outside the guide shaft; a rotating plate (633) is hingedly connected on one side of the moving plate (631); a torsion spring (634) is installed at the hinge between the rotating plate (633) and the moving plate (631); a cross groove (635) is provided on one side of the rotating plate (633); a cross block (637) is slidably connected in the cross groove (635); a limit pin (636) is fixedly connected to the bottom of the cross block (637); and a toggle block (638) is fixedly connected to the top of the cross block (637).

5. A power distribution cabinet convenient for internal loading and unloading according to claim 4, characterized in that: The base (62) is provided with a receiving groove (65) on both sides, and a main plate (639) and a slave plate (6310) which are hinged to each other are provided in the receiving groove (65). The main plate (639) is provided in the receiving groove (65) near one end of the cross beam (32) and is movably hinged to the base (62) through a bearing. Both side walls in the receiving groove (65) are provided with an embedded groove (6311). Both sides of one end of the slave plate (6310) are rotatably connected to a rectangular block (6312) through a bearing. The rectangular block (6312) is slidably arranged in the embedded groove (6311). A guide shaft is fixedly connected in the embedded groove (6311). The rectangular block (6312) is sleeved outside the guide shaft. A spring (6313) is installed on the side of the rectangular block (6312) away from the main plate (639), and the spring (6313) is sleeved outside the guide shaft.

6. A power distribution cabinet that is convenient for internal loading and unloading according to claim 5, characterized in that: A switch device (8) is provided between the cabinet door (2) and the cabinet body (1), the switch device (8) comprising four threaded rods (81), a transmission member (82) for controlling the rotation of the threaded rods (81), and a rotating handle (83) for driving the transmission member (82) to operate, the four threaded rods (81) being provided at four corners of a side of the cabinet door (2) close to the mounting beam (3), an inner compartment being provided on a side of the cabinet door (2) close to the mounting beam (3), the transmission member (82) comprising a control gear (821), and four driving gears (822) provided on the outer periphery of the control gear (821), the driving gear (822) being meshedly connected with the control gear (821), the driving gear (822) and the control gear (821) being both provided in the inner compartment and connected via a shaft. The cabinet door (2) is rotatably connected to the handle (83) through a bearing, one end of the threaded rod (81) and one end of the driving gear (822) are both fixedly connected to a driven gear (823), the driven gear (823) provided at one end of the threaded rod (81) is rotatably connected to the cabinet door (2) through a bearing, a toothed chain (824) is sleeved on the outer periphery of the driven gear (823), the toothed chain (824) is meshingly connected to the driven gear (823), the rotating handle (83) is rotatably connected to the cabinet door (2) through a bearing and one end is fixedly connected to the control gear (821), a plurality of fixing seats (84) are fixedly connected to the inner wall of the cabinet body (1), a threaded hole is provided on one side of the fixing seat (84), and the threaded rod (81) is threadedly connected to the fixing seat (84) through the threaded hole.

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