Maintenance equipment for automatic alarm PLC control cabinet

Abstract

The invention relates to the technical field of PLC control cabinet maintenance, and discloses an automatic alarm PLC control cabinet maintenance device which comprises a bottom plate, a working frame is fixedly connected to the top of the bottom plate, a sliding groove is formed in the top of the working frame, a sliding box is fixedly connected to the bottom of the working frame, and two fans are fixedly connected to the bottom of the working frame. The two fans are arranged on the two sides of the sliding box, the clamping component comprises a compressing disc slidably connected with the bottom of the inner wall of the sliding box, the bottom of the compressing disc is fixedly connected with a movable ring, the bottom of an air pressure column is fixedly connected with the top of the square plate, and the bottom of the movable ring is fixedly connected with a clamping touch hand; the air pressure component comprises an air pressure column fixedly connected with the top of the square plate, and the top of the air pressure column is fixedly connected with a pressing plate. By arranging the air pressure part and the clamping part, air of the air pressure foot is sprayed out from the surface of the air pressure cavity at a high speed to extinguish a fire source on the surface of the circuit, so that the burnt circuit can be conveniently treated in the later period.

Description

Technical Field

[0001] The invention relates to the technical field of PLC control cabinet maintenance, in particular to maintenance equipment for an automatic alarm PLC control cabinet. Background Art

[0002] PLC control cabinet is a device that assembles switchgear, measuring instruments, protective electrical appliances and auxiliary equipment in a closed or semi-closed metal cabinet or on a screen according to the requirements of electrical wiring. Its layout should meet the requirements of normal operation of the power system and not endanger the safety of people and surrounding equipment. During normal operation, the circuit can be connected or disconnected with the help of manual or automatic switches. The patent application with application number 202020067523.9 discloses a PLC control cabinet that is easy to maintain, which relates to the technical field of control cabinets, including a cabinet body, the interior of which is slidably connected to a mounting plate, the upper side wall of which is fixedly connected to a motor, and the output end of the motor is connected to a moving component, and the moving component is located inside the cabinet body, and the other end of the moving component is connected to the mounting plate, and the front side wall of the mounting plate is fixedly connected to two symmetrically arranged connecting strips; However, this patent also has the following shortcomings, that is, if a short circuit occurs in the internal circuit of the PLC control cabinet, a fire may occur inside the PLC control cabinet, thereby burning the internal circuit of the PLC control cabinet. After the circuit is burned, the fire source on the surface may not be extinguished, and it is necessary to re-select the connecting circuit. In view of this situation, an automatic alarm PLC control cabinet maintenance equipment is specially proposed. Summary of the invention

[0003] The object of the present invention is to provide a maintenance device for an automatic alarm PLC control cabinet to solve the problems raised in the above-mentioned background technology.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a maintenance device for an automatic alarm PLC control cabinet, comprising a bottom plate, a working frame is fixedly connected to the top of the bottom plate, a slide slot is provided on the top of the working frame, a sliding box is fixedly connected to the bottom of the working frame, two fans are fixedly connected to the bottom of the working frame, and the two fans are arranged on both sides of the sliding box, and also includes: The clamping component comprises a pressing plate slidably connected to the bottom of the inner wall of the sliding box, a movable ring is fixedly connected to the bottom of the pressing plate, a clamping tentacle is fixedly connected to the bottom of the movable ring, a square plate is fixedly connected to the surface of the clamping tentacle, a clamping column is fixedly connected to the bottom of the square plate, and an air pressure chamber is fixedly connected to the bottom of the inner wall of the clamping column, which drives the clamping tentacle to bend inward by squeezing the movable ring; The pneumatic component includes an air pressure column fixedly connected to the top of the square plate, the air pressure column is slidably connected to the inner wall of the pressure plate, the bottom of the air pressure column is fixedly connected to the top of the square plate, the top of the air pressure column is fixedly connected to a pressing plate, the top of the pressing plate is fixedly connected to a telescopic block, the surface of the telescopic block is fixedly connected to an air pressure bag, the inner wall of the pressing plate is slidably connected to the telescopic block through a slider, and a cooling component is arranged on the top of the bottom plate. After the pressing plate is pressed downward, the compression plate bends inward to squeeze the gas of the presser foot.

[0005] According to the above technical solution, the cooling component includes a placement box, which is fixedly connected to the top of the base plate, a blowing groove is provided on the top of the placement box, landslide plates are fixedly connected to both sides of the inner wall of the placement box, the bottom of the landslide plate is fixedly connected to the bottom of the inner wall of the placement box, an air outlet cavity is fixedly connected to the top of the landslide plate, a cooling pipe is fixedly connected to the bottom of the inner wall of the air outlet cavity, one end of the cooling pipe away from the air outlet cavity passes through the surface of the placement box, and an adjusting component is provided on the top of the placement box. When the rotating column rotates again, the connecting column will contact the landslide plate.

[0006] According to the above technical solution, the adjustment component includes an adjustment plate, which is fixedly connected to the top of the placement box. The surface of the adjustment plate is slidably connected to a rotating rod through a sliding hole. An adjustment block is fixedly connected to one end of the rotating rod close to the adjustment plate, and the adjustment block is moved to slide the rotating rod.

[0007] According to the above technical solution, the pneumatic component includes a movable plate, the movable plate is fixedly connected to the surface of the pneumatic column, the bottom of the movable plate is fixedly connected to a compression tube, the compression tube is fixedly connected to the surface of the pneumatic column, the bottom of the inner wall of the compression tube is fixedly connected to a pneumatic foot, the top of the pneumatic foot is fixedly connected to a compression plate, the top of the compression plate is fixedly connected to a pneumatic disk, and the pneumatic disk is sleeved with the surface of the pneumatic column. The gas enters the inside of the pneumatic foot from the pneumatic disk through the compression plate.

[0008] According to the above technical solution, the cooling component also includes a heat dissipation groove, which is opened on the surface of the landslide plate, and a heat dissipation plate is fixedly connected to the surface of the heat dissipation groove. A rotating column is rotatably connected to the bottom of the inner wall of the placement box, and a connecting column is fixedly connected to the surface of the rotating column. A heat dissipation strip is fixedly connected to the top of the connecting column, and a heat dissipation film is fixedly connected to both sides of the top of the connecting column. When the rotating column contacts the surface of the heat dissipation plate, the heat in the opening is absorbed into the heat dissipation groove through the heat dissipation plate.

[0009] According to the above technical solution, the adjusting component also includes a telescopic air ring, which is fixedly connected to the inner wall of the adjusting plate, and one end of the telescopic air ring away from the adjusting plate is fixedly connected to a compression disk, and the bottom of the inner wall of the compression disk is fixedly connected to an adsorption plate, and the right side of the compression disk is rotatably connected to an adjustment ring, and the surface of the adjustment ring is fixedly connected to a clamping plate, and the left side of the compression disk is rotatably connected to an adjustment tentacle, and one end of the adjustment tentacle is fixedly connected to the adjustment ring, and the rotation direction of the control cabinet can be adjusted by rotating the adjustment tentacle.

[0010] According to the above technical solution, the number of the adjustment plates is set to two, and the two adjustment plates are symmetrically installed on the top of the placement box with the center line of the rotating rod as the symmetry axis. The adjustment block is moved to slide the rotating rod to fine-tune the maintenance direction of the control cabinet.

[0011] According to the above technical solution, the number of the landslide plates is set to two, and the two landslide plates are symmetrically installed at the bottom of the inner wall of the placement box with the center line of the placement box as the symmetry axis. After the cold air enters the interior of the placement box from the blowing groove, it passes through the surface of the landslide plate and pushes the rotating column to rotate.

[0012] Compared with the prior art, the present invention provides a maintenance device for an automatic alarm PLC control cabinet, which has the following beneficial effects: 1. The present invention provides an air pressure component and a clamping component. The pressing plate is pressed downward to slide on the inner wall of the pressure plate through the air pressure column to move the square plate to the circuit surface. After the burnt circuit is placed through the inner wall of the clamping column, the pressing plate is pulled upward to make the movable ring squeeze the pressure plate upward, and the clamping tentacles are bent inward to the inner wall of the clamping column to clamp the burnt circuit. At this time, the telescopic block is pressed toward the inside of the pressing plate to discharge the gas inside the air pressure bag into the air pressure plate, and the gas enters the inside of the air pressure foot from the air pressure plate through the compression plate. The pressing plate is pressed downward again to eject the gas of the air pressure foot from the surface of the air pressure cavity at high speed to extinguish the fire source on the circuit surface, so as to facilitate the later treatment of the burnt circuit.

[0013] 2. The present invention sets a cooling component. After the burned PLC control cabinet is placed on the surface of the placement box, the fan is started to blow out cold air. The cold air enters the interior of the placement box from the blowing groove and passes through the surface of the slide plate to push the rotating column to rotate. During the rotation, the connecting column is driven to enter the groove on the surface of the placement box. The heat is taken away by the contact between the heat dissipation film and the surface of the control cabinet. At the same time, the heat dissipation film bends inward and moves to the surface of the heat dissipation strip. The heat dissipation strip absorbs the heat in the heat dissipation film and discharges the heat to the openings on both sides of the connecting column. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] 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: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the internal cross-sectional structure of the working frame of the present invention; Figure 3 It is a schematic diagram of the internal cross-sectional structure of the compression tube of the present invention; Figure 4 is a front view structural schematic diagram of the clamping tentacle of the present invention; Figure 5 It is a schematic cross-sectional structural diagram of the rotating column of the present invention; Figure 6 It is a schematic diagram of the internal cross-sectional structure of the placement box of the present invention; Figure 7 It is a schematic cross-sectional structural diagram of the rotating rod of the present invention.

[0015] In the figure: 1, bottom plate; 2, working frame; 3, slide groove; 4, sliding box; 5, fan; 6, pneumatic component; 601, pneumatic column; 602, pneumatic foot; 603, compression plate; 604, compression tube; 605, movable plate; 606, pressing plate; 607, telescopic block; 608, pneumatic bag; 609, pneumatic plate; 7, clamping component; 701, pressing plate; 702, movable ring; 703, clamping tentacles; 704, square plate; 705, clamping column; 706, pneumatic chamber; 8, cooling part Parts; 801, placement box; 802, blowing groove; 803, landslide plate; 804, air outlet cavity; 805, cooling pipe; 806, heat sink; 807, heat sink; 808, connecting column; 809, heat dissipation film; 810, heat dissipation strip; 811, rotating column; 9, adjustment component; 901, adjustment plate; 902, adjustment ring; 903, rotating rod; 904, adjustment block; 905, adsorption plate; 906, splint; 907, telescopic air ring; 908, adjustment tentacles; 909, compression disk. DETAILED DESCRIPTION

[0016] 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.

[0017] For example, see Figure 1-Figure 4 The present invention provides a technical solution: a maintenance device for an automatic alarm PLC control cabinet, comprising a bottom plate 1, a working frame 2 is fixedly connected to the top of the bottom plate 1, a slide slot 3 is provided on the top of the working frame 2, a sliding box 4 is fixedly connected to the bottom of the working frame 2, two fans 5 are fixedly connected to the bottom of the working frame 2, and the two fans 5 are arranged on both sides of the sliding box 4, and also includes: The clamping component 7 includes a pressure plate 701 slidably connected to the bottom of the inner wall of the sliding box 4, the bottom of the pressure plate 701 is fixedly connected to a movable ring 702, the bottom of the air pressure column 601 is fixedly connected to the top of the square plate 704, the bottom of the movable ring 702 is fixedly connected to a clamping tentacle 703, the surface of the clamping tentacle 703 is fixedly connected to the square plate 704, the bottom of the square plate 704 is fixedly connected to a clamping column 705, and the bottom of the inner wall of the clamping column 705 is fixedly connected to an air pressure chamber 706.

[0018] The pneumatic component 6 includes a pneumatic column 601 fixedly connected to the top of the square plate 704, the pneumatic column 601 is slidably connected to the inner wall of the compression plate 701, a pressing plate 606 is fixedly connected to the top of the pneumatic column 601, and a telescopic block 607 is fixedly connected to the top of the pressing plate 606. The pressing plate 606 is pulled to drive the compression plate 701 to slide left and right on the inner wall of the sliding box 4. When it slides to the position of the burned line to be repaired, the pulling is stopped, and the pressing plate 606 is pressed downward to move in the compression plate 701 through the pneumatic column 601. The square plate 704 is moved to the circuit surface by wall sliding. After the burned circuit is placed on the inner wall of the clamping column 705, the pressing plate 606 is pulled upward to make the movable ring 702 upwardly squeezed with the pressing plate 701. By squeezing the movable ring 702, the clamping tentacles 703 are driven to bend inward. After the clamping tentacles 703 bend inward to the inner wall of the clamping column 705, the burned circuit is clamped. The surface of the telescopic block 607 is fixedly connected with the air pressure bag 608, and the inner wall of the pressing plate 606 is connected with the telescopic block through the sliding block 607, a cooling component 8 is provided on the top of the bottom plate 1, and the air pressure component 6 includes a movable plate 605, the movable plate 605 is fixedly connected to the surface of the air pressure column 601, the bottom of the movable plate 605 is fixedly connected to a compression tube 604, the compression tube 604 is fixedly connected to the surface of the air pressure column 601, the bottom of the inner wall of the compression tube 604 is fixedly connected to an air pressure foot 602, the top of the air pressure foot 602 is fixedly connected to a compression plate 603, the top of the compression plate 603 is fixedly connected to an air pressure plate 609, and the air pressure plate 609 is fixedly connected to the air pressure column 601 surface, at this time, the telescopic block 607 is pressed toward the inside of the pressing plate 606 to discharge the gas inside the air pressure bag 608 into the air pressure plate 609, and the gas enters the inside of the air pressure foot 602 through the compression plate 603 from the air pressure plate 609. After the pressing plate 606 is pressed downward again, the compression plate 603 bends inward to squeeze the gas in the air pressure foot 602, and finally the gas in the air pressure foot 602 is ejected from the surface of the air pressure chamber 706 at a high speed to extinguish the fire source on the surface of the line, so as to facilitate the later treatment of the burned line.

[0019] Embodiment 2: The difference from embodiment 1 is as follows: Figure 5-Figure 6The cooling component 8 includes a placement box 801, which is fixedly connected to the top of the bottom plate 1. A blowing groove 802 is opened on the top of the placement box 801. The inner walls of the placement box 801 are fixedly connected with a sliding plate 803 on both sides. The bottom of the sliding plate 803 is fixedly connected to the bottom of the inner wall of the placement box 801. The fan 5 is started to blow out cold air. The cold air flows into the inside of the placement box 801 from the blowing groove 802 and then flows out through the openings on the surface of the sliding plate 803. This is equivalent to the cold air generating a secondary circulation to cool the control cabinet, thereby increasing the cooling effect. The top of the slide plate 803 is fixedly connected with an air outlet cavity 804, and the bottom of the inner wall of the air outlet cavity 804 is fixedly connected with a cooling pipe 805. The end of the cooling pipe 805 away from the air outlet cavity 804 passes through the surface of the placement box 801. The top of the placement box 801 is provided with an adjustment component 9. The cooling component 8 also includes a heat dissipation groove 807. The heat dissipation groove 807 is opened on the surface of the slide plate 803. The surface of the heat dissipation groove 807 is fixedly connected with a heat dissipation plate 806. The bottom of the inner wall of the placement box 801 is rotatably connected with a rotating column 811. The surface of the moving column 811 is fixedly connected with a connecting column 808, the top of the connecting column 808 is fixedly connected with a heat dissipation strip 810, and the top two sides of the connecting column 808 are fixedly connected with a heat dissipation film 809. The number of the sliding plates 803 is set to two, and the two sliding plates 803 are symmetrically installed at the bottom of the inner wall of the placement box 801 with the center line of the placement box 801 as the symmetry axis. When rotating, the connecting column 808 is driven into the groove on the surface of the placement box 801, and the heat is taken away by the contact between the heat dissipation film 809 and the surface of the control cabinet, and the heat is dissipated at the same time. The membrane 809 bends inward and moves to the surface of the heat dissipation strip 810. The heat dissipation strip 810 absorbs the heat in the heat dissipation membrane 809 and discharges the heat to the openings on both sides of the connecting column 808. When the rotating column 811 rotates again, the connecting column 808 will contact the landslide plate 803. When the rotating column 811 contacts the surface of the heat dissipation plate 806, the heat in its opening is absorbed into the heat dissipation groove 807 through the heat dissipation plate 806. When the heat accumulates to a certain extent, it will be discharged from the air outlet cavity 804, and finally discharged to the outside through the cooling pipe 805.

[0020] Embodiment 3: The difference from Embodiment 1 is as follows: Figure 7, the adjusting component 9 includes an adjusting plate 901, which is fixedly connected to the top of the placement box 801. The surface of the adjusting plate 901 is slidably connected to a rotating rod 903 through a sliding hole. The end of the rotating rod 903 close to the adjusting plate 901 is fixedly connected to an adjusting block 904. After the control cabinet is placed on the surface of the rotating rod 903, the rotating rod 903 is slid on the surface of the adjusting plate 901 by toggling the adjusting block 903. The rotating rod 903 can slightly change the placement angle of the control cabinet when sliding, so that the position where the control cabinet is burned is consistent with the direction of the connecting column 808. The adjusting component 9 also includes a telescopic air ring 907, which is fixedly connected to the inner wall of the adjusting plate 901. The end of the telescopic air ring 907 away from the adjusting plate 901 is fixedly connected to a compression disk 909. When the control cabinet is placed on the surface of the rotating rod 903, if the two ends of the control cabinet are long, the fixed position of the compression disk 909 can be adjusted by the telescopic air ring 907 in the future, and the control cabinet can be adjusted in the control direction. The pressure is buffered when the cabinet is clamped. An adsorption plate 905 is fixedly connected to the bottom of the inner wall of the compression disk 909. An adjusting ring 902 is rotatably connected to the right side of the compression disk 909. A clamping plate 906 is fixedly connected to the surface of the adjusting ring 902. An adjusting tentacle 908 is rotatably connected to the left side of the compression disk 909. One end of the adjusting tentacle 908 is fixedly connected to the adjusting ring 902. The number of adjusting plates 901 is set to two. The two adjusting plates 901 are symmetrically installed on the top of the placement box 801 with the center line of the rotating rod 903 as the symmetry axis. When the compression disk 909 contacts both ends of the control cabinet, the adsorption plate 905 on its inner wall generates magnetic attraction with the control cabinet to adsorb one end of the control cabinet on the surface of the compression disk 909. During the adsorption process, the clamping plate 906 contacts the control cabinet and expands outward to clamp both ends of the control cabinet. Finally, the rotation angle of the adjusting ring 902 is adjusted by rotating the adjusting tentacle 908. By setting this component, the placement angle of the control cabinet can be adjusted.

[0021] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is 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 maintenance device for an automatic alarm PLC control cabinet, comprising a base plate (1), a working frame (2) being fixedly connected to the top of the base plate (1), a slide groove (3) being provided on the top of the working frame (2), a sliding box (4) being fixedly connected to the bottom of the working frame (2), two fans (5) being fixedly connected to the bottom of the working frame (2), the two fans (5) being arranged on both sides of the sliding box (4), characterized in that: Also includes: The clamping component (7) comprises a pressure plate (701) slidably connected to the bottom of the inner wall of the sliding box (4); the bottom of the pressure plate (701) is fixedly connected to a movable ring (702); the bottom of the movable ring (702) is fixedly connected to a clamping tentacle (703); the surface of the clamping tentacle (703) is fixedly connected to a square plate (704); the bottom of the square plate (704) is fixedly connected to a clamping column (705); the bottom of the inner wall of the clamping column (705) is fixedly connected to an air pressure chamber (706); A pneumatic component (6), comprising a pneumatic column (601) fixedly connected to the top of a square plate (704), the bottom of the pneumatic column (601) fixedly connected to the top of the square plate (704), the pneumatic column (601) slidably connected to the inner wall of a compression plate (701), the top of the pneumatic column (601) fixedly connected to a pressing plate (606), the top of the pressing plate (606) fixedly connected to a telescopic block (607), the surface of the telescopic block (607) fixedly connected to a pneumatic bag (608), the inner wall of the pressing plate (606) slidably connected to the telescopic block (607) via a slider, and a cooling component (8) is provided on the top of the bottom plate (1); The cooling component (8) comprises a placement box (801), the placement box (801) is fixedly connected to the top of the bottom plate (1), a blowing groove (802) is provided on the top of the placement box (801), both sides of the inner wall of the placement box (801) are fixedly connected with a sliding plate (803), the bottom of the sliding plate (803) is fixedly connected to the bottom of the inner wall of the placement box (801), the top of the sliding plate (803) is fixedly connected with an air outlet cavity (804), the bottom of the inner wall of the air outlet cavity (804) is fixedly connected with a cooling pipe (805), the end of the cooling pipe (805) away from the air outlet cavity (804) passes through the surface of the placement box (801), and the top of the placement box (801) is provided with an adjusting component (9); The adjusting component (9) comprises an adjusting plate (901), the adjusting plate (901) being fixedly connected to the top of the placement box (801), a rotating rod (903) being slidably connected to the surface of the adjusting plate (901) via a sliding hole, and an adjusting block (904) being fixedly connected to one end of the rotating rod (903) close to the adjusting plate (901); The cooling component (8) further comprises a heat dissipation groove (807), wherein the heat dissipation groove (807) is provided on the surface of the slide plate (803), a heat dissipation plate (806) is fixedly connected to the surface of the heat dissipation groove (807), a rotating column (811) is rotatably connected to the bottom of the inner wall of the placement box (801), a connecting column (808) is fixedly connected to the surface of the rotating column (811), a heat dissipation strip (810) is fixedly connected to the top of the connecting column (808), and a heat dissipation film (809) is fixedly connected to both sides of the top of the connecting column (808).

2. The automatic alarm PLC control cabinet maintenance equipment according to claim 1 is characterized in that: The pneumatic component (6) comprises a movable plate (605), the movable plate (605) being fixedly connected to the surface of the pneumatic column (601), the bottom of the movable plate (605) being fixedly connected to a compression tube (604), the compression tube (604) being fixedly connected to the surface of the pneumatic column (601), the bottom of the inner wall of the compression tube (604) being fixedly connected to a pneumatic foot (602), the top of the pneumatic foot (602) being fixedly connected to a compression plate (603), the top of the compression plate (603) being fixedly connected to a pneumatic disk (609), and the pneumatic disk (609) being sleeved on the surface of the pneumatic column (601).

3. The maintenance equipment for an automatic alarm PLC control cabinet according to claim 2 is characterized in that: The adjustment component (9) further comprises a telescopic air ring (907), wherein the telescopic air ring (907) is fixedly connected to the inner wall of the adjustment plate (901), and one end of the telescopic air ring (907) away from the adjustment plate (901) is fixedly connected to a compression disk (909), and the bottom of the inner wall of the compression disk (909) is fixedly connected to an adsorption plate (905), the right side of the compression disk (909) is rotatably connected to an adjustment ring (902), the surface of the adjustment ring (902) is fixedly connected to a clamping plate (906), and the left side of the compression disk (909) is rotatably connected to an adjustment tentacle (908), and one end of the adjustment tentacle (908) is fixedly connected to the adjustment ring (902).

4. The maintenance equipment for an automatic alarm PLC control cabinet according to claim 3 is characterized in that: The number of the adjustment plates (901) is set to two, and the two adjustment plates (901) are symmetrically installed on the top of the placement box (801) with the center line of the rotating rod (903) as the symmetry axis.

5. The maintenance equipment for an automatic alarm PLC control cabinet according to claim 4 is characterized in that: The number of the sliding plates (803) is set to two, and the two sliding plates (803) are symmetrically installed on the bottom of the inner wall of the placement box (801) with the center line of the placement box (801) as the symmetry axis.

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