Flexible loop closing controller cabinet convenient to overhaul

Abstract

The invention relates to the related technical field of controller cabinet bodies, in particular to a flexible loop closing controller cabinet body convenient to overhaul, which comprises a cabinet body. According to the flexible loop closing controller cabinet body convenient to overhaul, through the arrangement of the pushing mechanism, when electrical elements in the cabinet body are overhauled, a driving motor in a motor box is started, and the driving motor drives a positive and negative screw rod on a transmission rod at the output end to rotate; two threaded blocks in threaded connection with the surfaces of the positive and negative screw rods move relatively, rotating rods on fixed joints on the surfaces of the threaded blocks are subjected to angle adjustment in the moving process, and the interiors of limiting sliding rails on the two sides of a placement plate on a rotating joint at the top of the rotating rods are driven to move front and back until the placement plate is moved to a proper position; the electrical components on the placing plate can be conveniently overhauled by a worker, and the situation that the operation of the maintainer is greatly limited in a narrow working environment or a limited overhauling space, and the misoperation risk and the labor intensity are increased is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of controller cabinets, and in particular to a flexible closed-loop controller cabinet which is easy to maintain. Background Art

[0002] With the continuous development of industrial automation and intelligent technology, especially in the fields of power, metallurgy, chemical industry, manufacturing, etc., flexible closed-loop controllers have become an important part of many complex systems. The main function of the closed-loop controller is to realize the centralized monitoring and coordinated operation of various electrical equipment. Therefore, it plays a vital role in the fields of power distribution and energy management. Since these controller systems usually involve high-voltage electrical equipment and complex circuit structures, the maintenance and overhaul requirements of the equipment are high. When a system fails, timely overhaul and efficient maintenance are the key to ensuring the normal operation of the equipment. The future-oriented closed-loop controller cabinet design will further integrate cutting-edge technologies such as the Internet of Things (IoT) and big data analysis to create a more intelligent and efficient operation and maintenance system. This not only improves the reliability and economy of the system, but also provides factory managers with unprecedented flexibility and agility, helping the transformation and upgrading of the industry. With the continuous evolution of technology, the flexible closed-loop controller cabinet is expected to become an indispensable part of the era of intelligent manufacturing and lead a new wave in the field of industrial automation. Therefore, a flexible closed-loop controller cabinet that is easy to overhaul is particularly needed.

[0003] However, due to its fixed spatial structure and strong closed characteristics, the traditional rigidly designed controller cabinet is inconvenient to disassemble and assemble when a fault occurs or regular inspection is required. The replacement of parts is time-consuming and labor-intensive, which seriously affects operational efficiency and production continuity. Especially in a small working environment or limited maintenance space, the operation of maintenance personnel is greatly restricted, increasing the risk of misoperation and labor intensity. Summary of the invention

[0004] The purpose of the new invention is to provide a flexible closed-loop controller cabinet that is easy to maintain, so as to solve the problems raised in the above background technology that when encountering a fault or requiring regular inspection, disassembly and assembly is inconvenient, and replacement of parts is time-consuming and labor-intensive, seriously affecting operational efficiency and production continuity, especially in a small working environment or limited maintenance space, the operation of maintenance personnel is greatly restricted, increasing the risk of misoperation and labor intensity.

[0005] To achieve the above object, the present invention provides the following technical solution: a flexible closed-loop controller cabinet that is easy to maintain, comprising a cabinet, one side of the cabinet is fixedly connected to a motor box, and the inside of the motor box is fixedly connected to a pushing mechanism;

[0006] The pushing mechanism comprises a driving motor, a transmission rod, a positive and negative screw rods, a threaded block, a fixed joint, a rotating rod, a rotating joint, a placement plate, an I-block, a limiting slide rail and a rotating shaft. The driving motor is fixedly connected to the inside of the motor box, the output end of the driving motor is splined with the transmission rod, one side of the transmission rod is fixedly connected to the positive and negative screw rods, the surface of the positive and negative screw rods is threadedly connected to two threaded blocks, the surface of the threaded block is fixedly connected to the fixed joint, the surface of the fixed joint is rotatably connected to the rotating rod, one end of the rotating rod is rotatably connected to the rotating joint, the back of the rotating joint is fixedly connected to the placement plate, the surface of the placement plate is fixedly connected to four I-blocks, the surface of the I-block is slidably connected to the limiting slide rail, the ends of the positive and negative screw rods are rotatably connected to the rotating shaft, the rotating shaft is fixedly connected to the inner wall of the cabinet, the limiting slide rails are threadedly connected to both sides of the inner wall of the cabinet, the surface of the limiting slide rail is provided with four threaded holes, and the internal threads of the threaded holes are threaded with threaded columns.

[0007] Preferably, a positioning plate is threadedly connected to the surface of the placement plate, two positioning blocks are fixedly connected to the surface of the positioning plate, and a vertical line mechanism is fixedly connected to the surface of the positioning block.

[0008] Preferably, the vertical line mechanism includes a sliding rod, a vertical line tube, a silicone pad, a slider, a track and a latch, the sliding rod is fixedly connected to the surface of the positioning block, the surface of the sliding rod is slidably connected to a plurality of vertical line tubes, the interior of the vertical line tube is fixedly connected to two silicone pads, the bottom of the vertical line tube is fixedly connected to a slider, the surface of the positioning plate is provided with a track, the slider is slidably connected to the interior of the track, the surfaces of the positioning plate and the vertical line tube are provided with a plurality of limiting holes, and the interior of the limiting holes is plugged with latches.

[0009] Preferably, a smoke sensor is installed on the upper part of the inner wall of the cabinet, one side of the smoke sensor is electrically connected to an alarm mechanism through a power line, the alarm mechanism includes a PLC controller and an alarm light, the PLC controller is electrically connected to one side of the smoke sensor through the power line, and one end of the PLC controller is electrically connected to the alarm light through the power line.

[0010] Preferably, a heat dissipation hole is opened in the upper part of the inner wall of the cabinet, and a heat dissipation mechanism is installed inside the heat dissipation hole. The heat dissipation mechanism includes an outer frame, a heat dissipation fan and a dustproof net. The outer frame is fixedly connected to one side of the heat dissipation hole, a heat dissipation fan is installed inside the outer frame, and a dustproof net is installed on the surface of the heat dissipation fan.

[0011] Preferably, a sealed door is hinged on the surface of the cabinet, an observation window is provided on the surface of the sealed door, the material of the observation window is acrylic, a handle is installed on the surface of the sealed door, a non-slip cover is mounted on the surface of the handle, and a shutter heat dissipation port is installed on the lower surface of the sealed door.

[0012] Preferably, a striped heat dissipation port is provided on the surface of the cabinet, the PLC controller is fixedly connected to the right side of the cabinet, and the alarm light is installed on the top of the cabinet.

[0013] Preferably, a base is fixedly connected to the bottom of the cabinet, a slide groove is provided inside the base, a drawer is slidably connected inside the slide groove, and a pull ring is fixedly connected to the surface of the drawer.

[0014] Preferably, the bottom of the base is fixedly connected with four supporting legs in a rectangular array, and the surfaces of the supporting legs are coated with an anti-rust coating.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the flexible closed-loop controller cabinet which is easy to maintain, through the setting of the pushing mechanism, starts the driving motor inside the motor box when the electrical components inside the cabinet are being maintained, and the driving motor drives the positive and negative screws on the output end transmission rod to rotate, thereby causing the two threaded blocks threadedly connected on the surfaces of the positive and negative screws to move relative to each other, and during the movement, the angle of the rotating rod on the fixed joint on the surface of the threaded block is adjusted, and the limiting slide rails on both sides of the placement plate on the rotating joint at the top of the rotating rod are driven to move back and forth until the placement plate is moved to a suitable position, thereby facilitating the staff to maintain the electrical components on the placement plate, and avoiding the maintenance personnel's operation being greatly restricted in a narrow working environment or limited maintenance space, thereby increasing the risk of misoperation and labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of the driving mechanism of the present invention;

[0018] Figure 3 It is a schematic diagram of the structure of the vertical line mechanism of the present invention;

[0019] Figure 4 This is a schematic diagram of the structure of the placement plate of the present invention;

[0020] Figure 5 It is a schematic diagram of the heat dissipation mechanism structure of the present invention;

[0021] Figure 6 This is a schematic diagram of the drawer structure of the present invention;

[0022] Figure 7It is a schematic diagram of the structure of the alarm mechanism of the present invention.

[0023] In the figure: 1, cabinet; 2, motor box; 3, driving mechanism; 301, driving motor; 302, transmission rod; 303, positive and negative screw rod; 304, thread block; 305, fixed joint; 306, rotating rod; 307, rotating joint; 308, placement plate; 309, I-shaped block; 310, limited slide rail; 311, rotating shaft; 312, threaded column; 4, positioning plate; 5, positioning block; 6, vertical line mechanism; 601, sliding rod; 602, vertical line barrel; 603, vertical line barrel; 604, vertical line barrel; 605, vertical line barrel; 606, vertical line barrel; 607, vertical line barrel; 608, vertical line barrel; 609, vertical line barrel; 608, vertical line barrel; 609, vertical line barrel; 609, vertical line barrel; 601, vertical line 03, silicone pad; 604, slider; 605, track; 606, latch; 7, smoke sensor; 8, alarm mechanism; 801, PLC controller; 802, alarm light; 9, heat dissipation mechanism; 901, outer frame; 902, cooling fan; 903, dust net; 10, sealed door; 11, observation window; 12, handle; 13, shutter heat dissipation vent; 14, striped heat dissipation vent; 15, base; 16, drawer; 17, pull ring; 18, support leg. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the new embodiment of the present invention to clearly and completely describe the technical solutions in the new embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-7 The present invention provides a technical solution: a flexible closed-loop controller cabinet that is easy to maintain, comprising a cabinet 1, a motor box 2 is fixedly connected to one side of the cabinet 1, and a driving mechanism 3 is fixedly connected to the inside of the motor box 2;

[0026] The pushing mechanism 3 includes a driving motor 301, a transmission rod 302, a positive and negative screw rod 303, a threaded block 304, a fixed joint 305, a rotating rod 306, a rotating joint 307, a placement plate 308, an I-shaped block 309, a limiting slide rail 310 and a rotating shaft 311. The driving motor 301 is fixedly connected to the inside of the motor box 2, and the output end of the driving motor 301 is spline-connected with the transmission rod 302, and one side of the transmission rod 302 is fixedly connected with the positive and negative screw rod 303, and the surface of the positive and negative screw rod 303 is threadedly connected to two threaded blocks 304, and the surface of the threaded block 304 is fixedly connected There is a fixed joint 305, the surface of the fixed joint 305 is rotatably connected with a rotating rod 306, one end of the rotating rod 306 is rotatably connected with a rotating joint 307, the back of the rotating joint 307 is fixedly connected with a placement plate 308, the surface of the placement plate 308 is fixedly connected with four I-shaped blocks 309, the surface of the I-shaped blocks 309 is slidably connected with a limited position slide rail 310, the ends of the positive and negative screw rods 303 are rotatably connected with a rotating shaft 311, the rotating shaft 311 is fixedly connected to the inner wall of the cabinet 1, the limited position slide rail 310 is threadedly connected to both sides of the inner wall of the cabinet 1, and the surface of the limited position slide rail 310 is provided with There are four threaded holes, and the internal threads of the threaded holes are connected with threaded columns 312. Through the arrangement of the driving motor 301, the transmission rod 302, the positive and negative screw rods 303, the threaded block 304, the fixed joint 305, the rotating rod 306, the rotating joint 307, the placement plate 308, the I-shaped block 309, the limit slide rail 310 and the rotating shaft 311, when the electrical components inside the cabinet 1 are inspected and repaired, the driving motor 301 inside the motor box 2 is started, and the driving motor 301 drives the positive and negative screw rods 303 on the output end transmission rod 302 to rotate, so that the surface of the positive and negative screw rods 303 The two threaded blocks 304 connected by threads move relative to each other. During the movement, the rotating rod 306 on the fixed joint 305 on the surface of the threaded block 304 adjusts its angle and drives the limiting slide rails 310 on both sides of the placement plate 308 on the rotating joint 307 at the top of the rotating rod 306 to move forward and backward until the placement plate 308 is moved to a suitable position, so as to facilitate the staff to inspect the electrical components on the placement plate 308 and avoid greatly restricting the operation of maintenance personnel in a small working environment or limited maintenance space, thereby increasing the risk of misoperation and labor intensity.

[0027] Furthermore, the surface of the placement plate 308 is threadedly connected to a positioning plate 4, the surface of the positioning plate 4 is fixedly connected to two positioning blocks 5, and the surface of the positioning blocks 5 is fixedly connected to a vertical line mechanism 6. By setting the positioning plate 4 and the positioning blocks 5, the vertical line mechanism 6 on one side can be supported and fixed, so that the vertical line mechanism 6 can slide inside the track 605 opened on the surface of the positioning plate 4. At the same time, by utilizing a plurality of positioning holes opened on the surface of the positioning plate 4, it can be connected with the vertical line tube 602 in the vertical line mechanism 6.

[0028] Furthermore, the vertical line mechanism 6 includes a sliding rod 601, a vertical line cylinder 602, a silicone pad 603, a slider 604, a track 605 and a latch 606. The sliding rod 601 is fixedly connected to the surface of the positioning block 5. The surface of the sliding rod 601 is slidably connected with a plurality of vertical line cylinders 602. Two silicone pads 603 are fixedly connected inside the vertical line cylinder 602. The bottom of the vertical line cylinder 602 is fixedly connected with a slider 604. A track 605 is provided on the surface of the positioning plate 4. The slider 604 is slidably connected to the inside of the track 605. A plurality of limiting holes are provided on the surfaces of the positioning plate 4 and the vertical line cylinder 602. The inside of the limiting holes is plugged with a latch 606. Through the arrangement of the sliding rod 601, the vertical line cylinder 602, the silicone pad 603, the slider 604, the track 605 and the latch 606, When placing vertical wires for the cables of the electrical components on the surface of the plate 308, the vertical wire barrel 602 on the sliding rod 601 can be moved according to the position distribution of the corresponding electrical components. After it moves to the corresponding position, the plug 606 is inserted into the limiting holes provided on the surface of the vertical wire barrel 602 and the positioning plate 4 to fix it. Finally, the cable is inserted into the vertical wire barrel 602, and the two silicone pads 603 provided on the inner wall of the vertical wire barrel 602 are used to squeeze and fix the cable. The silicone pad 603 has good plasticity and can place vertical wires for cables of different sizes. It can effectively manage the cables around the electrical components and optimize the equipment layout, making the lines more neat and reducing the messy accumulation of cables. This also plays a positive role in improving the heat dissipation, maintenance and safety of the equipment.

[0029] Furthermore, a smoke sensor 7 is installed on the upper part of the inner wall of the cabinet 1, and one side of the smoke sensor 7 is electrically connected to an alarm mechanism 8 through a power line. The alarm mechanism 8 includes a PLC controller 801 and an alarm light 802. The PLC controller 801 is electrically connected to one side of the smoke sensor 7 through a power line, and one end of the PLC controller 801 is electrically connected to the alarm light 802 through the power line. Through the setting of the PLC controller 801 and the alarm light 802, when a fire occurs, a smoke sensor 7 is installed inside the cabinet 1, which can detect smoke in the surrounding environment. When a preset value is reached, the signal is transmitted to the PLC controller 801 on one side, and the PLC controller 801 analyzes and processes the signal, and then controls the alarm light 802 on the top of the cabinet 1 to sound an alarm, so as to promptly remind the staff to conduct detection and avoid major property damage and safety accidents.

[0030] Furthermore, a heat dissipation hole is opened on the upper part of the inner wall of the cabinet 1, and a heat dissipation mechanism 9 is installed inside the heat dissipation hole. The heat dissipation mechanism 9 includes an outer frame 901, a heat dissipation fan 902 and a dustproof net 903. The outer frame 901 is fixedly connected to one side of the heat dissipation hole, and a heat dissipation fan 902 is installed inside the outer frame 901. A dustproof net 903 is installed on the surface of the heat dissipation fan 902. Through the arrangement of the outer frame 901, the heat dissipation fan 902 and the dustproof net 903, when the electrical components inside the cabinet 1 are cooled, the heat dissipation fan 902 on the surface of the outer frame 901 is started, and the heat dissipation fan 902 extracts the heat from the inside of the cabinet 1, thereby realizing rapid heat dissipation inside the cabinet 1 and avoiding excessively high temperature inside the cabinet 1, which may cause damage to the electrical components or even cause a fire.

[0031] Furthermore, a sealed door 10 is hinged on the surface of the cabinet 1 through a hinge, and an observation window 11 is opened on the surface of the sealed door 10. The material of the observation window 11 is acrylic, and a handle 12 is installed on the surface of the sealed door 10. The surface of the handle 12 is sleeved with an anti-slip sleeve, and a shutter heat dissipation vent 13 is installed on the lower surface of the sealed door 10. Through the arrangement of the sealed door 10, the observation window 11 and the handle 12, it is convenient for the staff to observe the internal situation of the cabinet 1 from the outside, without the need to frequently open the sealed door 10, thereby reducing the work intensity of the staff.

[0032] Furthermore, a striped heat dissipation port 14 is opened on the surface of the cabinet 1, the PLC controller 801 is fixedly connected to the right side of the cabinet 1, and the alarm light 802 is installed on the top of the cabinet 1. Through the setting of the striped heat dissipation port 14, the heat inside the cabinet 1 will flow out from the several striped heat dissipation ports 14 opened on one side, thereby achieving the effect of dissipating heat inside the cabinet 1.

[0033] Furthermore, a base 15 is fixedly connected to the bottom of the cabinet 1, a slide groove is provided inside the base 15, a drawer 16 is slidably connected inside the slide groove, and a pull ring 17 is fixedly connected to the surface of the drawer 16. Through the arrangement of the base 15, the drawer 16 and the pull ring 17, the staff can pull the pull ring 17 to open the drawer 16 inside the base 15, which is convenient for the staff to store sundries or maintenance parts. When inspecting the cabinet 1, the staff can quickly find the required items.

[0034] Furthermore, the bottom of the base 15 is fixedly connected with four supporting legs 18 in a rectangular array, and the surface of the supporting legs 18 is coated with an anti-rust coating. Through the setting of the supporting legs 18, four supporting legs 18 are set at the bottom of the cabinet 1, which can separate the cabinet 1 from the ground, reduce the impact of ground moisture on the electrical components inside the cabinet 1, and improve the safety of equipment operation.

[0035] Working principle: When inspecting the electrical components inside the cabinet 1, the driving motor 301 inside the motor box 2 is started, and the driving motor 301 drives the forward and reverse screw rods 303 on the output end transmission rod 302 to rotate, thereby causing the two threaded blocks 304 threadedly connected on the surfaces of the forward and reverse screw rods 303 to move relative to each other. During the movement, the rotating rod 306 on the fixed joint 305 on the surface of the threaded block 304 is adjusted in angle, and the limiting slide rails 310 on both sides of the placement plate 308 on the rotating joint 307 at the top of the rotating rod 306 are driven to move back and forth until the placement plate 308 is moved to a suitable position, so that the staff can inspect the electrical components on the placement plate 308. When the cables of the electrical components on the surface of the placement plate 308 are vertically wired, the vertical wire barrel 602 on the sliding rod 601 can be moved according to the position distribution of the corresponding electrical components. After it moves to the corresponding position, the plug 606 is inserted into the vertical wire barrel 602 and the opening on the surface of the positioning plate 4 The limit hole is fixed, and finally the cable is inserted into the vertical wire barrel 602, and the two silicone pads 603 arranged on the inner wall of the vertical wire barrel 602 are used to squeeze and fix the cable. The silicone pad 603 has good plasticity and can be used to vertically wire cables of different sizes, which can effectively manage the cables around the electrical components. At the same time, the equipment layout can be optimized to make the lines more tidy and reduce the accumulation of messy cables. In the event of a fire, a smoke sensor 7 is installed inside the cabinet 1 to detect smoke in the surrounding environment. When the preset value is reached, the signal is transmitted to the PLC controller 801 on one side, and the PLC controller 801 analyzes and processes the signal, and then controls the alarm light 802 on the top of the cabinet 1 to sound an alarm. When the electrical components inside the cabinet 1 are cooled, the cooling fan 902 on the surface of the outer frame 901 is started, and the cooling fan 902 extracts the heat inside the cabinet 1 to achieve rapid heat dissipation inside the cabinet 1. 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 flexible closed-loop controller cabinet that is easy to maintain, comprising a cabinet (1), characterized in that: A motor box (2) is fixedly connected to one side of the cabinet (1), and a driving mechanism (3) is fixedly connected inside the motor box (2); The pushing mechanism (3) comprises a driving motor (301), a transmission rod (302), a forward and reverse screw rod (303), a threaded block (304), a fixed joint (305), a rotating rod (306), a rotating joint (307), a placement plate (308), an I-shaped block (309), a limiting slide rail (310) and a rotating shaft (311); the driving motor (301) is fixedly connected to the inside of the motor box (2); the output end of the driving motor (301) is spline-connected with the driving rod (302); one side of the driving rod (302) is fixedly connected with the forward and reverse screw rod (303); the surface of the forward and reverse screw rod (303) is threadedly connected with two threaded blocks (304); the surface of the threaded block (304) is fixedly connected with the fixed joint (305); The surface of the joint (305) is rotatably connected to a rotating rod (306), one end of the rotating rod (306) is rotatably connected to a rotating joint (307), the back of the rotating joint (307) is fixedly connected to a placement plate (308), the surface of the placement plate (308) is fixedly connected to four I-shaped blocks (309), the surface of the I-shaped blocks (309) is slidably connected to a limit slide rail (310), the ends of the forward and reverse screw rods (303) are rotatably connected to a rotating shaft (311), the rotating shaft (311) is fixedly connected to the inner wall of the cabinet (1), the limit slide rail (310) is threadedly connected to both sides of the inner wall of the cabinet (1), and the surface of the limit slide rail (310) is provided with four threaded holes, and the inner parts of the threaded holes are threadedly connected to threaded columns (312).

2. According to claim 1, a flexible closed-loop controller cabinet that is easy to maintain is characterized in that: The surface of the placement plate (308) is threadedly connected to a positioning plate (4), the surface of the positioning plate (4) is fixedly connected to two positioning blocks (5), and the surface of the positioning blocks (5) is fixedly connected to a vertical line mechanism (6).

3. The flexible closed-loop controller cabinet that is easy to maintain according to claim 2 is characterized in that: The vertical line mechanism (6) comprises a sliding rod (601), a vertical line cylinder (602), a silicone pad (603), a slider (604), a track (605) and a latch (606); the sliding rod (601) is fixedly connected to the surface of the positioning block (5); a plurality of vertical line cylinders (602) are slidably connected to the surface of the sliding rod (601); two silicone pads (603) are fixedly connected inside the vertical line cylinder (602); a slider (604) is fixedly connected to the bottom of the vertical line cylinder (602); a track (605) is provided on the surface of the positioning plate (4); the slider (604) is slidably connected to the inside of the track (605); a plurality of limiting holes are provided on the surfaces of the positioning plate (4) and the vertical line cylinder (602); and the latch (606) is plugged into the inside of the limiting holes.

4. The flexible closed-loop controller cabinet that is easy to maintain according to claim 1 is characterized in that: A smoke sensor (7) is installed on the upper part of the inner wall of the cabinet (1); one side of the smoke sensor (7) is electrically connected to an alarm mechanism (8) via a power line; the alarm mechanism (8) comprises a PLC controller (801) and an alarm light (802); the PLC controller (801) is electrically connected to one side of the smoke sensor (7) via a power line; and one end of the PLC controller (801) is electrically connected to the alarm light (802) via the power line.

5. The flexible closed-loop controller cabinet that is easy to maintain according to claim 1 is characterized in that: A heat dissipation hole is provided at the upper portion of the inner wall of the cabinet (1); a heat dissipation mechanism (9) is installed inside the heat dissipation hole; the heat dissipation mechanism (9) comprises an outer frame (901), a heat dissipation fan (902) and a dustproof net (903); the outer frame (901) is fixedly connected to one side of the heat dissipation hole; a heat dissipation fan (902) is installed inside the outer frame (901); and a dustproof net (903) is installed on the surface of the heat dissipation fan (902).

6. The flexible closed-loop controller cabinet that is easy to maintain according to claim 1 is characterized in that: A sealed door (10) is hingedly connected to the surface of the cabinet (1) via a hinge, an observation window (11) is provided on the surface of the sealed door (10), the material of the observation window (11) is acrylic, a handle (12) is installed on the surface of the sealed door (10), an anti-slip sleeve is sleeved on the surface of the handle (12), and a shutter heat dissipation outlet (13) is installed on the lower surface of the sealed door (10).

7. The flexible closed-loop controller cabinet that is easy to maintain according to claim 1 is characterized in that: The surface of the cabinet (1) is provided with a striped heat dissipation opening (14), the PLC controller (801) is fixedly connected to the right side of the cabinet (1), and the alarm light (802) is installed on the top of the cabinet (1).

8. The flexible closed-loop controller cabinet that is easy to maintain according to claim 1 is characterized in that: The bottom of the cabinet (1) is fixedly connected to a base (15), a slide groove is provided inside the base (15), a drawer (16) is slidably connected inside the slide groove, and a pull ring (17) is fixedly connected to the surface of the drawer (16).

9. The flexible closed-loop controller cabinet that is easy to maintain according to claim 8 is characterized in that: The bottom of the base (15) is fixedly connected to four supporting legs (18) in a rectangular array, and the surfaces of the supporting legs (18) are coated with an anti-rust coating.

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