System cabinet convenient to overhaul and operation method thereof

Abstract

The invention belongs to the technical field of system cabinets, and particularly relates to a system cabinet convenient to overhaul and an operation method thereof.The system cabinet comprises a system cabinet body, a fixing plate is connected to the inner side of the system cabinet body, a mounting plate is arranged at the top of the fixing plate, and an air inlet is formed in the outer wall of the system cabinet body; a motor is started to drive a second bevel gear to rotate, a lead screw is driven to rotate by means of the meshing relation between the second bevel gear and a first bevel gear, a connecting frame at the top of a first connecting block in threaded connection with the outer wall of the lead screw moves, one end of the connecting frame is connected with a mounting plate, and the other end of the connecting frame is connected with a second bevel gear. When the first connecting block moves, the mounting plate can move along the first sliding groove under the action of the first sliding block, so that the mounting plate located in the deep position of the system cabinet body can extend outwards, and a worker can overhaul electrical equipment and components on the mounting plate more conveniently.

Description

Technical Field

[0001] The invention belongs to the technical field of system cabinets, and in particular relates to a system cabinet that is easy to maintain and an operating method thereof. Background Art

[0002] The automatic control system cabinet, also known as the automatic control cabinet or control cabinet, is a key equipment in the field of industrial automation. It integrates a variety of electrical equipment and components, such as contactors, circuit breakers, fuses, motor protectors, relays, etc., as well as PLC controllers, power supplies, communication interfaces and other components.

[0003] At present, during the use of existing system cabinets, it is usually necessary to install a variety of electrical equipment and components on the mounting plate inside the cabinet. However, as the electrical equipment and components inside the system cabinet run for a long time, these components may fail, so it is necessary to regularly inspect and maintain the internal equipment. However, since the installation location of the electrical equipment and components is located deep in the system cabinet, when the staff conducts maintenance, they need to stretch their bodies into the narrow cabinet to operate, which makes it very inconvenient for the staff to repair the equipment in the cabinet. Summary of the invention

[0004] The object of the present invention is to provide a system cabinet that is easy to maintain and an operating method thereof, aiming to solve the problem that during the use of the existing system cabinet, it is usually necessary to install a variety of electrical equipment and components on the mounting plate inside the cabinet. However, as the electrical equipment and components inside the system cabinet run for a long time, these components may fail, so it is necessary to regularly maintain the internal equipment. However, since the installation position of the electrical equipment and components is located deep in the system cabinet, when the staff conducts maintenance, they need to extend their bodies into the narrow cabinet to operate, which causes great inconvenience to the staff when maintaining the equipment in the cabinet.

[0005] To achieve the above object, the present invention provides the following technical solution: a system cabinet that is easy to maintain, comprising a system cabinet body, a fixing plate connected to the inner side of the system cabinet body, a mounting plate arranged on the top of the fixing plate, an air inlet opened on the outer wall of the system cabinet body, and a heat dissipation port opened on the top of the system cabinet body;

[0006] The bottom of the fixing plate is connected to a fixing seat, the inner side of the fixing seat is rotatably connected to a screw rod, one end of the screw rod is provided with a first bevel gear, the outer wall of the fixing seat is connected to a motor, the output end of the motor is connected to a second bevel gear, the outer wall of the screw rod is threadedly connected to a first connecting block, the top of the first connecting block is connected to a connecting frame, a first sliding groove is provided on the surface of the fixing plate, and the bottom of the mounting plate is connected to a first sliding block.

[0007] As a preferred system cabinet of the present invention that is easy to maintain, the first bevel gear is meshed with the second bevel gear.

[0008] As a preferred system cabinet of the present invention that is easy to maintain, an opening is provided on the surface of the fixing plate, and one end of the connecting frame is connected to the mounting plate through the opening on the surface of the fixing plate.

[0009] As a preferred system cabinet of the present invention that is easy to maintain, the mounting plate can form a sliding connection structure with the fixed plate through a first sliding groove and a first sliding block.

[0010] As a preferred system cabinet for easy maintenance of the present invention, the top of the system cabinet body is connected to a mounting frame, the outer wall of the mounting frame is connected to a fixing block, a slot is opened at one end of the fixing block, a mounting frame is provided on the top of the system cabinet body, a cooling fan is installed on the inner side of the mounting frame, the outer wall of the mounting frame is connected to a mounting seat, a spring is provided on the inner side of the mounting seat, the end of the spring is connected to a movable block, one end of the movable block is connected to a locking pin, and the outer wall of the movable block is connected to a shift block.

[0011] As a preferred embodiment of the system cabinet of the present invention that is easy to maintain, the heat dissipation fan is located directly above the heat dissipation port.

[0012] As a preferred system cabinet of the present invention that is easy to maintain, the heat dissipation fan can form an elastic snap-fit ​​structure with the system cabinet body through an installation frame, a fixed block, a slot, a mounting bracket, a mounting seat, a spring, a movable block, a latch and a shift block.

[0013] As a preferred system cabinet for easy maintenance of the present invention, two slide rails are connected to one side of the system cabinet body, a filter plate is slidably connected between the two slide rails, one end of the filter plate is connected to a limiting block, a limiting slot is provided at the end of the limiting block, the outer wall of the system cabinet body is connected to a fixing frame, one end of the fixing frame is penetrated by a bidirectional screw rod, the outer wall of the bidirectional screw rod is threadedly connected to two second connecting blocks, the outer walls of the two second connecting blocks are connected to an L-shaped limiting plug, the surface of the fixing frame is provided with a second slide groove, and the outer wall of the second connecting block is connected to a second sliding block.

[0014] As a preferred system cabinet of the present invention that is easy to maintain, one end of the bidirectional screw rod forms a rotation connection structure with a fixed frame through a bearing.

[0015] A method for operating a system cabinet that is easy to repair, comprising the following steps:

[0016] S1. First, move the system cabinet body to the specified position, then slide and insert the filter plate along the slide rail, so that the limit block moves between the two L-shaped limit plugs, and then rotate the two-way screw to enable the two second connection blocks connected by the thread on the outer wall to drive the L-shaped limit plugs to move toward each other. As the two L-shaped limit plugs move toward each other, one end of the L-shaped limit plug will be inserted into the limit slot. After completion, the filter plate can be installed at the air inlet to achieve dust prevention at the air inlet;

[0017] S2. Move the shifting block to make the movable block drive the latch to contract, and then embed the mounting frame with the cooling fan installed into the inner side of the mounting frame. At this time, the shifting block can be released, and the latch will pop out and be inserted into the slot of the fixed block under the action of the spring to achieve elastic engagement, so that the cooling fan can be installed on the top of the cooling port. Finally, connect the power supply line of the cooling fan. After completion, the cooling fan can be used to improve the heat dissipation inside the system cabinet body by switching on the switch.

[0018] S3, the second bevel gear is driven to rotate by starting the motor, and the meshing relationship between the second bevel gear and the first bevel gear is used to drive the screw rod to rotate, and the connecting frame on the top of the first connecting block threadedly connected to the outer wall of the screw rod moves, and one end of the connecting frame is connected to the mounting plate. When the first connecting block moves, the mounting plate moves along the first slide groove under the action of the first slider, and the staff can repair the electrical equipment and components on the mounting plate or install the electrical equipment on the mounting plate;

[0019] S4. The second bevel gear is driven by a motor to rotate in the opposite direction, and the connecting frame on the top of the first connecting block drives the mounting plate to move deeper into the system cabinet body, so that the mounting plate on which the electrical equipment and components are installed can be reset;

[0020] S5. The components and assemblies installed on the mounting plate are connected to the host computer through the switch input and output interface to realize remote control and automatic operation of the control system.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The second bevel gear is driven to rotate by starting the motor, and the meshing relationship between the second bevel gear and the first bevel gear is used to drive the screw rod to rotate, and the connecting frame on the top of the first connecting block threadedly connected to the outer wall of the screw rod moves, and one end of the connecting frame is connected to the mounting plate. When the first connecting block moves, the mounting plate moves along the first slide groove under the action of the first slider, so that the mounting plate located deep in the system cabinet body can be extended outward, so that the staff can more conveniently inspect and repair the electrical equipment and components on the mounting plate.

[0023] The movable block drives the latch to contract by toggling the toggle block, and then the mounting bracket with the cooling fan installed is embedded into the inner side of the mounting frame. At this time, the toggle block can be released, and the latch will pop out and be inserted into the slot of the fixed block under the action of the spring to achieve elastic engagement, so that the cooling fan can be installed on the top of the cooling port, and the cooling fan can assist the heat dissipation inside the system cabinet body, thereby improving the heat dissipation effect of the system cabinet body itself.

[0024] By rotating the bidirectional screw rod counterclockwise, the two second connecting blocks threadedly connected to its outer wall can drive the L-shaped limit plug blocks to move in opposite directions, and one end of the two L-shaped limit plug blocks will be disengaged from the limit slots. At this time, the filter plate is pulled outward to slide along the slide rail until the filter plate is completely removed, so that the filter plate can be disassembled for easy cleaning to avoid dust clogging. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0026] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the main disassembled structure of the present invention;

[0028] Figure 3 It is a schematic diagram of the main cross-sectional structure of the present invention;

[0029] Figure 4 It is a bottom view structural schematic diagram of the present invention;

[0030] Figure 5 It is a schematic diagram of the cross-sectional structure of the heat dissipation component of the present invention;

[0031] Figure 6 A is a schematic diagram of the enlarged structure of the present invention;

[0032] Figure 7 It is a schematic diagram of the B enlarged structure of the present invention;

[0033] Figure 8 It is a schematic diagram of the C amplification structure of the present invention;

[0034] Fig. 9 It is a schematic diagram of the operation logic of the present invention.

[0035] In the figure: 1. system cabinet body; 2. fixing plate; 3. mounting plate; 4. air inlet; 5. heat dissipation port; 6. fixing seat; 7. screw rod; 8. first bevel gear; 9. motor; 10. second bevel gear; 11. first connecting block; 12. connecting frame; 13. first slide groove; 14. first slider; 15. mounting frame; 16. fixing block; 17. slot; 18. mounting frame; 19. cooling fan; 20. mounting seat; 21. spring; 22. movable block; 23. bayonet pin; 24. shift block; 25. slide rail; 26. filter plate; 27. limit block; 28. limit slot; 29. ​​fixing frame; 30. two-way screw rod; 31. second connecting block; 32. L-shaped limit plug block; 33. second slide groove; 34. second slider. DETAILED DESCRIPTION

[0036] 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.

[0037] See also Figure 1-9 The present invention provides the following technical solutions: a system cabinet that is easy to maintain, comprising a system cabinet body 1, a fixing plate 2 is connected to the inner side of the system cabinet body 1, a mounting plate 3 is arranged on the top of the fixing plate 2, an air inlet 4 is opened on the outer wall of the system cabinet body 1, and a heat dissipation port 5 is opened on the top of the system cabinet body 1;

[0038] It should be noted that a door is hinged on one side of the system cabinet body 1, and the door needs to be equipped with a door lock to achieve closure;

[0039] The bottom of the fixed plate 2 is connected to a fixed seat 6, the inner side of the fixed seat 6 is rotatably connected to a screw rod 7, one end of the screw rod 7 is provided with a first bevel gear 8, the outer wall of the fixed seat 6 is connected to a motor 9, the output end of the motor 9 is connected to a second bevel gear 10, the outer wall of the screw rod 7 is threadedly connected to a first connecting block 11, the top of the first connecting block 11 is connected to a connecting frame 12, a first slide groove 13 is provided on the surface of the fixed plate 2, and a first slider 14 is connected to the bottom of the mounting plate 3.

[0040] Preferably: the first bevel teeth 8 are meshed with the second bevel teeth 10, an opening is provided on the surface of the fixed plate 2, and one end of the connecting frame 12 is connected to the mounting plate 3 through the opening on the surface of the fixed plate 2, and the mounting plate 3 can form a sliding connection structure with the fixed plate 2 through the first sliding groove 13 and the first sliding block 14.

[0041] When in use, the second bevel gear 10 is driven to rotate by starting the motor 9, and the meshing relationship between the second bevel gear 10 and the first bevel gear 8 is used to drive the screw rod 7 to rotate, and the connecting frame 12 on the top of the first connecting block 11 threadedly connected to the outer wall of the screw rod 7 moves, and one end of the connecting frame 12 is connected to the mounting plate 3. When the first connecting block 11 moves, the mounting plate 3 moves along the first slide groove 13 under the action of the first slider 14, so that the mounting plate 3 located deep in the system cabinet body 1 can be extended outward, so that the staff can inspect and repair the electrical equipment and components on the mounting plate 3;

[0042] On the contrary, the motor 9 drives the second bevel gear 10 to rotate in the opposite direction, and the connecting frame 12 on the top of the first connecting block 11 drives the mounting plate 3 to move deeper into the system cabinet body 1, so that the mounting plate 3 on which the electrical equipment and components are installed can be reset;

[0043] It should be noted that the motor 9 is connected to the control switch via an external power source, and the first slide groove 13 and the first slider 14 are arranged to guide the mounting plate 3 during its movement.

[0044] Preferably: the top of the system cabinet body 1 is connected to a mounting frame 15, the outer wall of the mounting frame 15 is connected to a fixing block 16, a slot 17 is provided at one end of the fixing block 16, a mounting frame 18 is provided at the top of the system cabinet body 1, a cooling fan 19 is installed on the inner side of the mounting frame 18, the outer wall of the mounting frame 18 is connected to a mounting seat 20, a spring 21 is provided on the inner side of the mounting seat 20, the end of the spring 21 is connected to a movable block 22, one end of the movable block 22 is connected to a bayonet 23, the outer wall of the movable block 22 is connected to a shift block 24, the cooling fan 19 is located directly above the heat dissipation port 5, and the cooling fan 19 can form an elastic snap-fit ​​structure with the system cabinet body 1 through the mounting frame 15, the fixing block 16, the slot 17, the mounting frame 18, the mounting seat 20, the spring 21, the movable block 22, the bayonet 23, and the shift block 24.

[0045] When in use, the movable block 22 drives the latch 23 to retract by shifting the shift block 24, and then the mounting frame 18 with the cooling fan 19 mounted thereon is embedded into the inner side of the mounting frame 15. At this time, the shift block 24 can be released, and the latch 23 will pop out and be inserted into the slot 17 of the fixed block 16 under the action of the spring 21 to realize elastic engagement, so that the cooling fan 19 can be mounted on the top of the cooling port 5, and the cooling fan 19 can assist the cooling of the system cabinet body 1;

[0046] It should be noted that the cooling fan 19 is connected to an external power supply and a control switch, the mounting frame 18 is adapted to the inner dimensions of the mounting frame 15, and a filter is installed at the heat dissipation port 5 to prevent dust from entering the cabinet from the heat dissipation port 5;

[0047] It is more important to note that the heat dissipation assembly is composed of a mounting frame 18 , a heat dissipation fan 19 , a mounting seat 20 , a spring 21 , a movable block 22 , a latch 23 , and a shifting block 24 .

[0048] Preferably: two slide rails 25 are connected to one side of the system cabinet body 1, a filter plate 26 is slidably connected between the two slide rails 25, one end of the filter plate 26 is connected to a limiting block 27, a limiting slot 28 is provided at the end of the limiting block 27, an outer wall of the system cabinet body 1 is connected to a fixing frame 29, one end of the fixing frame 29 passes through a bidirectional screw rod 30, the outer wall of the bidirectional screw rod 30 is threadedly connected to two second connecting blocks 31, the outer walls of the two second connecting blocks 31 are connected to an L-shaped limiting plug 32, a second slide groove 33 is provided on the surface of the fixing frame 29, the outer wall of the second connecting block 31 is connected to a second slider 34, and one end of the bidirectional screw rod 30 forms a rotating connection structure with the fixing frame 29 through a bearing.

[0049] When in use, the two second connection blocks 31 connected by the threaded connection of the two-way screw rod 30 on its outer wall can drive the L-shaped limit plugs 32 to move in opposite directions, and one end of the two L-shaped limit plugs 32 will be disengaged from the limit slots 28. At this time, the filter plate 26 is pulled outward to slide along the slide rail 25 until the filter plate 26 is completely removed, so that the filter plate 26 can be disassembled.

[0050] On the contrary, when installing the filter plate 26, the filter plate 26 is slid and inserted along the slide rail 25, so that the limit block 27 moves between the two L-shaped limit plugs 32, and then the two-way screw rod 30 is rotated to enable the two second connection blocks 31 threadedly connected to the outer wall to drive the L-shaped limit plugs 32 to move toward each other. As the two L-shaped limit plugs 32 move toward each other, one end of the L-shaped limit plug 32 will be inserted into the limit slot 28. After completion, the filter plate 26 can be installed at the air inlet 4;

[0051] It should be noted that the installed filter plate 26 covers the surface of the air inlet 4 , and the filter plate 26 fits the outer wall of the system cabinet body 1 .

[0052] A method for operating a system cabinet that is easy to repair, comprising the following steps:

[0053] S1. First, move the system cabinet body 1 to the specified position, and then slide the filter plate 26 along the slide rail 25 to insert it, so that the limit block 27 moves between the two L-shaped limit plugs 32, and then rotate the two-way screw rod 30 so that the two second connection blocks 31 threadedly connected on the outer wall can drive the L-shaped limit plugs 32 to move toward each other. As the two L-shaped limit plugs 32 move toward each other, one end of the L-shaped limit plug 32 will be inserted into the limit slot 28. After completion, the filter plate 26 can be installed at the air inlet 4 to achieve dust prevention at the air inlet 4;

[0054] S2. Move the shift block 24 to make the movable block 22 drive the latch 23 to retract, and then embed the mounting frame 18 with the cooling fan 19 installed into the inner side of the mounting frame 15. At this time, the shift block 24 can be released, and the latch 23 will pop out and be inserted into the slot 17 of the fixed block 16 under the action of the spring 21 to achieve elastic engagement, so that the cooling fan 19 can be installed on the top of the cooling port 5. Finally, connect the power supply line of the cooling fan 19. After completion, the cooling fan 19 can be used to improve the internal heat dissipation of the system cabinet body 1 by switching on and off.

[0055] S3, the second bevel gear 10 is driven to rotate by starting the motor 9, and the meshing relationship between the second bevel gear 10 and the first bevel gear 8 is used to drive the screw rod 7 to rotate, and the connecting frame 12 on the top of the first connecting block 11 threadedly connected to the outer wall of the screw rod 7 moves, and one end of the connecting frame 12 is connected to the mounting plate 3. When the first connecting block 11 moves, the mounting plate 3 moves along the first slide groove 13 under the action of the first slider 14. At this time, the staff can repair the electrical equipment and components on the mounting plate 3 or install electrical equipment on the mounting plate 3;

[0056] S4, the motor 9 is used to drive the second bevel gear 10 to rotate in the opposite direction, and the connecting frame 12 on the top of the first connecting block 11 will drive the mounting plate 3 to move deeper into the system cabinet body 1, so that the mounting plate 3 on which the electrical equipment and components are installed can be reset;

[0057] S5. The components and assemblies installed on the mounting plate 3 are connected to the host computer through the switch input and output interface to realize remote control and automatic operation of the control system.

[0058] Working principle: First, when it is necessary to inspect the inside of the system cabinet, the second bevel gear 10 is driven to rotate by starting the motor 9, and the meshing relationship between the second bevel gear 10 and the first bevel gear 8 is used to drive the screw rod 7 to rotate, and the connecting frame 12 on the top of the first connecting block 11 threadedly connected to the outer wall of the screw rod 7 moves, and one end of the connecting frame 12 is connected to the mounting plate 3. When the first connecting block 11 moves, the mounting plate 3 will move along the first slide groove 13 under the action of the first slider 14, so that the mounting plate 3 located deep in the system cabinet body 1 can be extended outward, so that the staff can more conveniently inspect the electrical equipment and components on the mounting plate 3, and the movable block 22 drives the bayonet 23 to retract by turning the dial block 24, and then the mounting frame 18 equipped with the cooling fan 19 is embedded in the inner side of the mounting frame 15, and the dial block 2 can be released at this time. 4, the latch 23 will pop out and be inserted into the slot 17 of the fixing block 16 under the action of the spring 21 to realize elastic engagement, so that the cooling fan 19 can be installed on the top of the cooling port 5, and the cooling fan 19 can assist the system cabinet body 1 in dissipating heat, thereby improving the cooling effect of the system cabinet body 1 itself. When it is necessary to clean the cleaning filter plate 26 covering the surface of the air inlet 4, the two second connecting blocks 31 threadedly connected to the outer wall of the two-way screw rod 30 are rotated counterclockwise to drive the L-shaped limit plug blocks 32 to move in opposite directions, and one end of the two L-shaped limit plug blocks 32 will be disengaged from the limit slot 28. At this time, the filter plate 26 is pulled outward to slide along the slide rail 25 until the filter plate 26 is completely removed, so that the filter plate 26 can be disassembled to facilitate the cleaning of the filter plate 26 to avoid dust clogging.

[0059] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A system cabinet that is easy to maintain, comprising a system cabinet body (1), characterized in that: The inner side of the system cabinet body (1) is connected to a fixing plate (2), the top of the fixing plate (2) is provided with a mounting plate (3), the outer wall of the system cabinet body (1) is provided with an air inlet (4), and the top of the system cabinet body (1) is provided with a heat dissipation port (5); The bottom of the fixed plate (2) is connected to a fixed seat (6), the inner side of the fixed seat (6) is rotatably connected to a screw rod (7), one end of the screw rod (7) is provided with a first bevel gear (8), the outer wall of the fixed seat (6) is connected to a motor (9), the output end of the motor (9) is connected to a second bevel gear (10), the outer wall of the screw rod (7) is threadedly connected to a first connecting block (11), the top of the first connecting block (11) is connected to a connecting frame (12), a first sliding groove (13) is provided on the surface of the fixed plate (2), and a first sliding block (14) is connected to the bottom of the mounting plate (3).

2. A system cabinet that is easy to maintain according to claim 1, characterized in that: The first bevel gear (8) is meshed with the second bevel gear (10).

3. The system cabinet for easy maintenance according to claim 1, characterized in that: The surface of the fixing plate (2) is provided with an opening, and one end of the connecting frame (12) is connected to the mounting plate (3) through the opening on the surface of the fixing plate (2).

4. The system cabinet for easy maintenance according to claim 1, characterized in that: The mounting plate (3) can form a sliding connection structure with the fixing plate (2) through a first sliding groove (13) and a first sliding block (14).

5. The system cabinet for easy maintenance according to claim 1, characterized in that: The top of the system cabinet body (1) is connected to a mounting frame (15), the outer wall of the mounting frame (15) is connected to a fixing block (16), one end of the fixing block (16) is provided with a slot (17), the top of the system cabinet body (1) is provided with a mounting frame (18), the inner side of the mounting frame (18) is provided with a cooling fan (19), the outer wall of the mounting frame (18) is connected to a mounting seat (20), the inner side of the mounting seat (20) is provided with a spring (21), the end of the spring (21) is connected to a movable block (22), one end of the movable block (22) is connected to a locking pin (23), and the outer wall of the movable block (22) is connected to a shifting block (24).

6. The system cabinet for easy maintenance according to claim 5, characterized in that: The heat dissipation fan (19) is located directly above the heat dissipation port (5).

7. The system cabinet for easy maintenance according to claim 5, characterized in that: The heat dissipation fan (19) can form an elastic locking structure with the system cabinet body (1) through the installation frame (15), the fixing block (16), the slot (17), the installation frame (18), the installation seat (20), the spring (21), the movable block (22), the locking pin (23) and the shifting block (24).

8. The system cabinet for easy maintenance according to claim 1, characterized in that: Two slide rails (25) are connected to one side of the system cabinet body (1), a filter plate (26) is slidably connected between the two slide rails (25), one end of the filter plate (26) is connected to a limit block (27), and a limit slot (28) is provided at the end of the limit block (27); the outer wall of the system cabinet body (1) is connected to a fixing frame (29), one end of the fixing frame (29) is penetrated by a bidirectional screw rod (30), the outer wall of the bidirectional screw rod (30) is threadedly connected to two second connecting blocks (31), the outer walls of the two second connecting blocks (31) are connected to an L-shaped limit plug block (32), a second slide groove (33) is provided on the surface of the fixing frame (29), and the outer wall of the second connecting block (31) is connected to a second sliding block (34).

9. The system cabinet for easy maintenance according to claim 8, characterized in that: One end of the bidirectional screw rod (30) forms a rotation connection structure with the fixing frame (29) via a bearing.

10. A system cabinet operation method that facilitates maintenance, characterized in that: The following steps are involved: S1. First, move the system cabinet body (1) to the specified position, then slide the filter plate (26) along the slide rail (25) and insert it so that the limit block (27) moves between the two L-shaped limit plugs (32), and then rotate the two-way screw rod (30) so that the two second connection blocks (31) threadedly connected to the outer wall can drive the L-shaped limit plugs (32) to move towards each other. As the two L-shaped limit plugs (32) move towards each other, one end of the L-shaped limit plug (32) will be inserted into the limit slot (28). After completion, the filter plate (26) can be installed at the air inlet (4) to achieve dust prevention at the air inlet (4); S2, by moving the shifting block (24), the movable block (22) drives the latch (23) to retract, and then the mounting frame (18) on which the heat dissipation fan (19) is installed is embedded in the inner side of the mounting frame (15), at which time the shifting block (24) can be released, and the latch (23) will pop out and be inserted into the latching slot (17) of the fixed block (16) under the action of the spring (21) to realize elastic engagement, so that the heat dissipation fan (19) can be installed on the top of the heat dissipation port (5), and finally the power supply line of the heat dissipation fan (19) is connected. After completion, the heat dissipation fan (19) can be used to improve the internal heat dissipation of the system cabinet body (1) by switching on the switch; S3, the second bevel gear (10) is driven to rotate by starting the motor (9), and the meshing relationship between the second bevel gear (10) and the first bevel gear (8) is used to drive the screw rod (7) to rotate, and the connecting frame (12) at the top of the first connecting block (11) threadedly connected to the outer wall of the screw rod (7) moves, and one end of the connecting frame (12) is connected to the mounting plate (3). When the first connecting block (11) moves, the mounting plate (3) moves along the first slide groove (13) under the action of the first slider (14), and the staff can then inspect and repair the electrical equipment and components on the mounting plate (3) or install the electrical equipment on the mounting plate (3); S4, using the motor (9) to drive the second bevel gear (10) to rotate in the opposite direction, the connecting frame (12) on the top of the first connecting block (11) will drive the mounting plate (3) to move deeper into the system cabinet body (1), so that the mounting plate (3) on which the electrical equipment and components are installed can be reset; S5. The components and assemblies installed on the mounting plate (3) are connected to the host computer via the switch input and output interface to achieve remote control and automatic operation of the control system.

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