PLC cabinet inner cavity spraying instrument

Abstract

The utility model relates to the technical field of plate paint spraying, in particular to a PLC (programmable logic controller) cabinet inner cavity spraying instrument which is used for cleaning an inner cavity of a PLC cabinet before paint spraying, so that the paint spraying effect is enhanced, the harm of paint to the body of a worker is reduced, and the paint airing speed is increased. Comprising an operation table and a paint spraying mechanism, the operation table comprises a table body, a conveying roller, a supporting box, four telescopic rods and two push plates, and the paint spraying mechanism comprises a paint bucket, a pneumatic diaphragm pump, a paint conveying hose, a sliding block, a first telescopic support and a first high-pressure spray head; the device further comprises a recycling mechanism, a cleaning mechanism and a drying mechanism, the recycling mechanism is installed on the supporting box and sucks out and recycles residual paint mist, steam and dust in a cavity of the supporting box, the cleaning mechanism is installed on the supporting box and conducts steam washing on an inner cavity of the PLC cabinet, and the drying mechanism is installed on the supporting box and conducts drying treatment on the inner cavity of the PLC cabinet where paint spraying is completed. The drying mechanism, the paint spraying mechanism and the cleaning mechanism are sequentially installed on the supporting box from left to right.

Description

Technical Field

[0001] The utility model relates to the technical field of plate spraying, in particular to a PLC cabinet inner cavity spraying device. Background Art

[0002] PLC cabinets have the characteristics of compact structure, stable operation and complete functions. They are widely used in industries such as electric power, metallurgy, chemical industry, papermaking, environmental protection and sewage treatment. In the production and manufacturing of PIC cabinets, painting the inner cavity of the PLC cabinet is an important process.

[0003] Existing paint spraying devices, such as the utility model patent with application number 202022227448.0, discloses a plate paint spraying device with uniform paint spraying, whose main structure includes a paint spraying rack, a paint storage box, a paint spraying box, a paint spraying pipe, a nozzle, a baffle, a conveying roller and a workbench. The paint spraying rack is provided with a workbench, and a plurality of pairs of support plates are bolted on the workbench, and a conveying roller is arranged between the support plates. A mounting hole is opened on the paint spraying rack, and a fixing rod is bolted to the fixing rod, and a spring is arranged in the fixing rod, one end of the spring is welded to the connecting rod, and one end of the connecting rod is welded to the baffle. A fixing plate is bolted to the paint spraying rack, and a paint storage box is provided on the upper part of the fixing plate, one end of the paint storage box is connected to the paint spraying pipe, and one end of the paint spraying pipe is connected to the paint spraying box; when in use, the plate to be painted is placed on the conveying roller, and the conveying roller running in the same direction guides and conveys the plate, and when the plate generates thrust on the baffle, the baffle and the connecting rod squeeze the spring to telescopic movement in the fixing rod.

[0004] However, most of the existing paint spraying devices do not clean the products to be painted before painting, resulting in poor painting effect, uneven paint thickness, and no protective measures for workers. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a PLC cabinet inner cavity spraying device which cleans the inner cavity of the PLC cabinet before painting, thereby enhancing the effect of painting, reducing the harm of paint to workers' bodies, and accelerating the drying rate of paint.

[0006] The utility model discloses a PLC cabinet inner cavity spraying device, comprising an operating table and a paint spraying mechanism, the operating table comprising a table body, a conveying roller, a supporting box, four telescopic rods and two push plates, the conveying roller is rotatably mounted on the table body, the supporting box is mounted on the table body, a cavity is arranged inside the supporting box, and an electromagnetic track groove and a fan mounting opening are opened at the top of the supporting box, two telescopic rods are respectively arranged on the left and right inner walls of the supporting box, the push plate is mounted on the two telescopic rods on the same side, the paint spraying mechanism comprises a paint bucket, a pneumatic diaphragm pump, a paint delivery hose, a slider, a telescopic bracket and a high-pressure nozzle, the bottom end of the paint bucket is connected to the top end of the supporting box, the bottom end of the pneumatic diaphragm pump is connected to the top end of the supporting box, the paint delivery hose is mounted on the pneumatic diaphragm pump, the slider is mounted in the electromagnetic track groove of the supporting box, the telescopic bracket is mounted on the slider, and the high-pressure nozzle is mounted on the telescopic bracket; it also includes a recovery mechanism, a cleaning mechanism and a drying mechanism, the recovery mechanism is mounted on the supporting box and sucks out and recovers the paint mist, steam and dust remaining in the cavity of the supporting box, and the cleaning mechanism is mounted on The support box is installed to steam-wash the inner cavity of the PLC cabinet. The drying mechanism is installed on the support box and dries the inner cavity of the PLC cabinet after painting. The drying mechanism, the painting mechanism, and the cleaning mechanism are installed on the support box from left to right in sequence; the conveying roller transports the PLC cabinet to the cavity of the support box, the telescopic rod pushes the push plate to fix the PLC cabinet, the cleaning mechanism is started, the cleaning mechanism slides to the right and uses steam to purge the inner cavity of the PLC cabinet, and then the pneumatic diaphragm pump is started, the slider drives the telescopic bracket 1 to slide to the right, the telescopic bracket 1 pushes the high-pressure nozzle 1 downward, the pneumatic diaphragm pump transports the paint from the paint bucket to the high-pressure nozzle 1 through the paint delivery hose, and the high-pressure nozzle 1 sprays the paint evenly into the inner cavity of the PLC cabinet. After the painting is completed, the telescopic bracket 1 contracts, the high-pressure nozzle 1 is lifted, and then the drying mechanism is started, the drying mechanism slides to the right and blows out hot air to dry the painted surface of the inner cavity of the PLC cabinet, the recovery mechanism absorbs the steam, dust and paint mist generated in the process that are not sprayed on the surface of the inner cavity of the PLC cabinet and other waste gases, and transports the waste gas to the drying mechanism.

[0007] Preferably, the recovery mechanism includes an exhaust fan, a funnel and a recovery pipe. The exhaust fan is installed at the fan installation port of the support box, the funnel cover is installed on the exhaust fan, the input end of the recovery pipe is connected to the output end of the funnel, and the output end of the recovery pipe is connected to the drying mechanism. Through the exhaust fan, the steam, dust and paint mist generated in the device that are not sprayed onto the inner cavity surface of the PLC cabinet are all sucked into the funnel, and these exhaust gases are recycled through the recovery pipe.

[0008] Preferably, the cleaning mechanism includes an evaporator box, a heating tube, a liquid level gauge, a safety valve, a blower 1, an air supply hose, a slider 2, a telescopic bracket 2 and a high-pressure nozzle 2. The evaporator box is installed on the support box, the interior of the evaporator box is an inner cavity and a discharge port is provided on the side wall of the evaporator box to communicate with the inner cavity, the heating tube is installed in the inner cavity of the evaporator box, the liquid level gauge is installed on the side wall of the evaporator box, the safety valve is installed on the top of the evaporator box and communicated with the inner cavity of the evaporator box, the blower 1 is installed on the support box and communicated with the discharge port of the evaporator box, the air supply hose is installed on the safety valve and communicated with the interior of the safety valve, and the slider 2 is installed on the electromagnetic rail of the support box. In the channel, telescopic bracket 2 is installed on slider 2, and high-pressure nozzle 2 is installed on telescopic bracket 2 and connected with the air supply hose; the water in the evaporator box is heated into steam by the heating tube, and the liquid level gauge can observe the change of the water volume in the evaporator box. When the pressure in the evaporator box is too high, the safety valve automatically opens to release the pressure, and the steam in the evaporator box is transported to the high-pressure nozzle 2 through the blower 1 and the air supply hose. The slider 2 drives the telescopic bracket 2 to slide to the right, and the telescopic bracket 2 is pushed down to the high-pressure nozzle 2. The high-pressure nozzle 2 sprays steam to purge the inner cavity of the PLC cabinet. After blowing away the dust in the inner cavity of the PLC cabinet, the telescopic bracket 2 contracts to lift the high-pressure nozzle 2.

[0009] Preferably, the drying mechanism includes a heating box, a dehumidification layer, a filter layer, an electric heating wire, a second blower, an air supply hose, a third slider, a third telescopic bracket and a third high-pressure nozzle. The heating box is installed on a support box. The interior of the heating box is a chamber and a feed port is provided at the top of the heating box, the feed port is connected to a recovery pipe, a discharge port is provided on the side wall of the heating box, the dehumidification layer is installed at the top of the chamber of the heating box, the filter layer is installed in the chamber of the heating box and below the dehumidification layer, the electric heating wire is installed in the chamber of the heating box and below the filter layer, the second blower is installed on the support box and is connected to the discharge port of the heating box, and the air supply hose is installed On blower two, slider three is installed in the electromagnetic track groove of the support box, telescopic bracket three is installed on slider three, and high-pressure nozzle three is installed on telescopic bracket three; the exhaust gas collected by the recovery mechanism enters the heating box, and the moisture and other impurities are filtered out by the dehumidification layer and the filter layer. After the electric heating wire heats the gas, blower two transports the hot air to high-pressure nozzle three through the air supply hose, slider three drives telescopic bracket three to slide to the right, telescopic bracket three pushes high-pressure nozzle three downward, and high-pressure nozzle three blows the hot air through the painted surface of the inner cavity of the PLC cabinet to speed up the drying rate of the paint, and then telescopic bracket three contracts to lift the high-pressure nozzle three.

[0010] Preferably, a support box is also included, and the support box is a box structure; steps such as cleaning, painting, and drying can be carried out in a closed environment, reducing the harm of paint and hot steam to the human body and protecting the health of workers.

[0011] Preferably, it also includes a telescopic bracket 1, which is installed on the slider; the telescopic bracket 1 can make the high-pressure nozzle 1 penetrate into the inner cavity of the PLC cabinet through extension and retraction, thereby enhancing the effect of painting and making the paint surface more uniform.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the conveying roller transports the PLC cabinet to the cavity of the supporting box, the telescopic rod pushes the push plate to fix the PLC cabinet, the cleaning mechanism is started, the cleaning mechanism slides to the right and uses steam to blow the inner cavity of the PLC cabinet, and then the pneumatic diaphragm pump is started, the slider drives the telescopic bracket to slide to the right, the telescopic bracket pushes the high-pressure nozzle downward, the pneumatic diaphragm pump transports the paint from the paint bucket to the high-pressure nozzle through the paint delivery hose, the high-pressure nozzle sprays the paint evenly into the inner cavity of the PLC cabinet, after the painting is completed, the telescopic bracket contracts, the high-pressure nozzle is lifted up, and then the drying mechanism is started, the drying mechanism slides to the right and blows out hot air to dry the painted surface of the inner cavity of the PLC cabinet, the recovery mechanism absorbs the steam, dust and paint mist generated in the process that are not sprayed on the inner cavity surface of the PLC cabinet, and the waste gas is transported to the drying mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the axonometric structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the axonometric structure of the operating table of the utility model;

[0015] Figure 3 It is a right side structural schematic diagram of the paint spraying mechanism of the utility model;

[0016] Figure 4 It is a front view structural diagram of the recycling mechanism of the utility model;

[0017] Figure 5 It is a right side cross-sectional structural schematic diagram of the cleaning mechanism of the utility model;

[0018] Figure 6 It is a right side cross-sectional structural schematic diagram of the drying mechanism of the utility model;

[0019] Markings in the attached figure: 01, operating table; 11, table body; 12, conveyor roller; 13, support box; 14, telescopic rod; 15, push plate; 02, paint spraying mechanism; 21, paint bucket; 22, pneumatic diaphragm pump; 23, paint delivery hose; 24, slider; 25, telescopic bracket 1; 26, high-pressure nozzle 1; 03, recovery mechanism; 31, exhaust fan; 32, funnel; 33, recovery pipe; 04, cleaning mechanism; 41, evaporation Box; 42. Heating pipe; 43. Liquid level gauge; 44. Safety valve; 45. Blower 1; 46. Steam supply hose; 47. Slider 2; 48. Telescopic bracket 2; 49. High-pressure nozzle 2; 05. Drying mechanism; 51. Heating box; 52. Dehumidification layer; 53. Filter layer; 54. Electric heating wire; 55. Blower 2; 56. Air supply hose; 57. Slider 3; 58. Telescopic bracket 3; 59. High-pressure nozzle 3. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0021] The utility model discloses a PLC cabinet inner cavity spraying device, comprising an operating table 01 and a paint spraying mechanism 02, wherein the operating table 01 comprises a table body 11, a conveying roller 12, a support box 13, four telescopic rods 14 and two push plates 15, the conveying roller 12 is rotatably mounted on the table body 11, the support box 13 is mounted on the table body 11, a cavity is arranged inside the support box 13 and an electromagnetic track groove and a fan mounting port are opened at the top of the support box 13, two telescopic rods 14 are respectively arranged on the left and right inner side walls of the support box 13, the push plate 15 is mounted on the two telescopic rods 14 on the same side, and the paint spraying mechanism 02 comprises a paint bucket 21, a pneumatic diaphragm pump 22, a paint delivery hose 23, a slider 24, a telescopic bracket 25 and a high-pressure nozzle 1 26, the bottom end of the paint bucket 21 is connected to the top end of the support box 13, the bottom end of the pneumatic diaphragm pump 22 is connected to the top end of the support box 13, the paint delivery hose 23 is installed on the pneumatic diaphragm pump 22, the slider 24 is installed in the electromagnetic track groove of the support box 13, the telescopic bracket 25 is installed on the slider 24, and the high-pressure nozzle 26 is installed on the telescopic bracket 25; it also includes a recovery mechanism 03, a cleaning mechanism 04 and a drying mechanism 05, the recovery mechanism 03 is installed on the support box 13 and sucks out and recovers the paint mist, steam and dust remaining in the cavity of the support box 13, the cleaning mechanism 04 is installed on the support box 13 and steam washes the inner cavity of the PLC cabinet, and the drying mechanism 05 is installed on the support box 13 and The inner cavity of the PLC cabinet after painting is dried, and the drying mechanism 05, the painting mechanism 02, and the cleaning mechanism 04 are installed on the support box 13 from left to right in sequence; the recovery mechanism 03 includes an exhaust fan 31, a funnel 32 and a recovery pipe 33, the exhaust fan 31 is installed at the fan installation port of the support box 13, the funnel 32 cover is installed on the exhaust fan 31, the input end of the recovery pipe 33 is connected to the output end of the funnel 32, and the output end of the recovery pipe 33 is connected to the drying mechanism 05; the cleaning mechanism 04 includes an evaporation box 41, a heating tube 42, a liquid level meter 43, a safety valve 44, a blower 45, an air supply hose 46, a slider 47, a telescopic bracket 48 and a high-pressure nozzle 49, the evaporation box 41 is installed Installed on the support box 13, the interior of the evaporation box 41 is an inner cavity and a discharge port is arranged on the side wall of the evaporation box 41 and is connected to the inner cavity, the heating pipe 42 is installed in the inner cavity of the evaporation box 41, the liquid level meter 43 is installed on the side wall of the evaporation box 41, the safety valve 44 is installed on the top of the evaporation box 41 and is connected to the inner cavity of the evaporation box 41, the blower 45 is installed on the support box 13 and is connected to the discharge port of the evaporation box 41, the air supply hose 46 is installed on the safety valve 44 and is connected to the inside of the safety valve 44, the slider 47 is installed in the electromagnetic track groove of the support box 13, the telescopic bracket 48 is installed on the slider 47, and the high-pressure nozzle 49 is installed on the telescopic bracket 48 and is connected to the air supply hose 46;The drying mechanism 05 includes a heating box 51, a dehumidification layer 52, a filter layer 53, an electric heating wire 54, a blower 2 55, an air supply hose 56, a slider 3 57, a telescopic bracket 3 58 and a high-pressure nozzle 3 59. The heating box 51 is installed on the support box 13. The interior of the heating box 51 is a chamber and a feed port is provided at the top of the heating box 51. The feed port is connected to the recovery pipe 33. A discharge port is provided on the side wall of the heating box 51. The dehumidification layer 52 is installed at the top of the chamber of the heating box 51. The filter layer 53 is installed in the chamber of the heating box 51 and is located at the dehumidification layer 52. , the electric heating wire 54 is installed in the chamber of the heating box 51 and below the filter layer 53, the blower 2 55 is installed on the support box 13 and communicated with the discharge port of the heating box 51, the air supply hose 56 is installed on the blower 2 55, the slider 3 57 is installed in the electromagnetic track groove of the support box 13, the telescopic bracket 3 58 is installed on the slider 3 57, and the high-pressure nozzle 3 59 is installed on the telescopic bracket 3 58; it also includes the support box 13, the support box 13 is a box structure; it also includes the telescopic bracket 1 25, and the telescopic bracket 1 25 is installed on the slider 24. ;

[0022] like Figures 1 to 6As shown, the utility model is a PLC cabinet inner cavity spraying device. When it is working, the conveying roller 12 transports the PLC cabinet to the cavity of the support box 13, so that the outer surface of the PLC cabinet is flush with the outer surface of the support box 13, ensuring that the cavity of the support box 13 is a closed space, the telescopic rod 14 pushes the push plate 15 to fix the PLC cabinet, the water in the evaporation box 41 is heated by the heating pipe 42 to become steam, the liquid level meter 43 can observe the change of the water volume in the evaporation box 41, and when the pressure in the evaporation box 41 is too high, the safety valve 44 automatically opens to release the pressure. The steam in the evaporation box 41 is transported to the high-pressure nozzle 2 49 through the blower 1 45 and the air supply hose 46. The slider 2 47 drives the telescopic bracket 2 48 to slide to the right. The telescopic bracket 2 48 is pushed downward to the high-pressure nozzle 2 49. The high-pressure nozzle 2 49 sprays steam to purge the inner cavity of the PLC cabinet. After the dust in the inner cavity of the PLC cabinet is blown away, the telescopic bracket 2 48 contracts to lift the high-pressure nozzle 2 49, and then the pneumatic diaphragm pump 22 is started. The slider 24 drives the telescopic bracket 1 25 to slide to the right, and the telescopic bracket 1 25 pushes the high-pressure nozzle downward. The pneumatic diaphragm pump 22 delivers the paint from the paint bucket 21 to the high-pressure nozzle 26 through the paint delivery hose 23. The high-pressure nozzle 26 sprays the paint evenly into the inner cavity of the PLC cabinet. After the painting is completed, the telescopic bracket 25 shrinks and the high-pressure nozzle 26 is lifted up. The exhaust fan 31 sucks all the steam, dust and paint mist generated in the device that have not been sprayed onto the inner surface of the PLC cabinet into the funnel 32, and the exhaust gas is transported to the heating box 51 through the recovery pipe 33. The moisture and other waste gases are filtered out through the dehumidification layer 52 and the filter layer 53. other impurities, after the electric heating wire 54 heats the gas, the blower two 55 transports the hot air to the high-pressure nozzle three 59 through the air supply hose 56, the slider three 57 drives the telescopic bracket three 58 to slide to the right, the telescopic bracket three 58 pushes the high-pressure nozzle three 59 downward, the high-pressure nozzle three 59 blows the hot air through the painted surface of the inner cavity of the PLC cabinet to speed up the drying rate of the paint, and then the telescopic bracket three 58 contracts to lift the high-pressure nozzle three 59. After all is completed, the slider 24, the slider two 47, and the slider three 57 slide to the left to reset and enter the next process.

[0023] The pneumatic diaphragm pump 22, exhaust fan 31, evaporation box 41, heating tube 42, blower 1 45 and blower 2 55 of the utility model are purchased on the market. The technicians in this industry only need to install and operate them according to the accompanying instruction manual, without the need for the technicians in this field to make creative efforts.

[0024] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A PLC cabinet inner cavity spraying device, comprising an operating table (01) and a paint spraying mechanism (02), the operating table (01) comprising a table body (11), a conveying roller (12), a support box (13), four telescopic rods (14) and two push plates (15), the conveying roller (12) is rotatably mounted on the table body (11), the support box (13) is mounted on the table body (11), a cavity is arranged inside the support box (13), and an electromagnetic track groove and a fan mounting opening are opened at the top of the support box (13), two telescopic rods (14) are respectively mounted on the left and right inner side walls of the support box (13), and the push plate (15) is mounted on the two telescopic rods (14) on the same side; characterized in that The utility model also comprises a recovery mechanism (03), a cleaning mechanism (04) and a drying mechanism (05). The recovery mechanism (03) is installed on the support box (13) and sucks out and recovers the paint mist, steam and dust remaining in the cavity of the support box (13). The cleaning mechanism (04) is installed on the support box (13) and performs steam flushing on the inner cavity of the PLC cabinet. The drying mechanism (05) is installed on the support box (13) and performs drying treatment on the inner cavity of the PLC cabinet after the paint is sprayed. The drying mechanism (05), the painting mechanism (02) and the cleaning mechanism (04) are installed on the support box (13) in sequence from left to right.

2. A PLC cabinet inner cavity spraying device as claimed in claim 1, characterized in that: The paint spraying mechanism (02) comprises a paint bucket (21), a pneumatic diaphragm pump (22), a paint delivery hose (23), a slider (24), a telescopic bracket (25) and a high-pressure nozzle (26). The bottom end of the paint bucket (21) is connected to the top end of the support box (13), the bottom end of the pneumatic diaphragm pump (22) is connected to the top end of the support box (13), the paint delivery hose (23) is installed on the pneumatic diaphragm pump (22), the slider (24) is installed in the electromagnetic track groove of the support box (13), the telescopic bracket (25) is installed on the slider (24), and the high-pressure nozzle (26) is installed on the telescopic bracket (25).

3. A PLC cabinet inner cavity spraying device as claimed in claim 1, characterized in that: The recovery mechanism (03) comprises an exhaust fan (31), a funnel (32) and a recovery pipe (33); the exhaust fan (31) is mounted at the fan mounting opening of the support box (13); the funnel (32) cover is mounted on the exhaust fan (31); the input end of the recovery pipe (33) is connected to the output end of the funnel (32); and the output end of the recovery pipe (33) is connected to the drying mechanism (05).

4. A PLC cabinet inner cavity spraying device as claimed in claim 1, characterized in that: The cleaning mechanism (04) comprises an evaporation box (41), a heating pipe (42), a liquid level gauge (43), a safety valve (44), a blower (45), an air supply hose (46), a slider (47), a telescopic bracket (48) and a high-pressure nozzle (49). The evaporation box (41) is mounted on the support box (13). The interior of the evaporation box (41) is an inner cavity. A discharge port is provided on the side wall of the evaporation box (41) and is connected to the inner cavity. The heating pipe (42) is mounted in the inner cavity of the evaporation box (41). The liquid level gauge (43) is mounted on the side wall of the evaporation box (41). The safety valve (44) is mounted on the top of the evaporation box (41) and is in communication with the inner cavity of the evaporation box (41); the blower 1 (45) is mounted on the support box (13) and is in communication with the discharge port of the evaporation box (41); the air supply hose (46) is mounted on the safety valve (44) and is in communication with the interior of the safety valve (44); the slider 2 (47) is mounted in the electromagnetic track groove of the support box (13); the telescopic bracket 2 (48) is mounted on the slider 2 (47); and the high-pressure nozzle 2 (49) is mounted on the telescopic bracket 2 (48) and is in communication with the air supply hose (46).

5. A PLC cabinet inner cavity spraying device as claimed in claim 3, characterized in that: The drying mechanism (05) comprises a heating box (51), a dehumidification layer (52), a filtering layer (53), an electric heating wire (54), a second blower (55), an air supply hose (56), a third slider (57), a third telescopic bracket (58) and a third high-pressure nozzle (59). The heating box (51) is installed on the supporting box (13). The interior of the heating box (51) is a chamber and a feed port is provided at the top of the heating box (51). The feed port is connected to the recovery pipe (33). A discharge port is provided on the side wall of the heating box (51). The dehumidification layer (52) is installed at the top of the chamber of the heating box (51). The filter layer (53) is installed in the chamber of the heating box (51) and below the dehumidification layer (52), the electric heating wire (54) is installed in the chamber of the heating box (51) and below the filter layer (53), the blower 2 (55) is installed on the support box (13) and connected to the discharge port of the heating box (51), the air supply hose (56) is installed on the blower 2 (55), the slider 3 (57) is installed in the electromagnetic track groove of the support box (13), the telescopic bracket 3 (58) is installed on the slider 3 (57), and the high-pressure nozzle 3 (59) is installed on the telescopic bracket 3 (58).

6. A PLC cabinet inner cavity spraying device as claimed in claim 1, characterized in that: It also includes a support box (13), which is a box structure.

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