Anti-fouling car roof maintenance box for car elevator

Abstract

The invention relates to an anti-fouling car roof maintenance box for a car elevator, which belongs to the technical field of elevator maintenance equipment and comprises a maintenance box structure, a heat dissipation mechanism arranged in the maintenance box structure, a mounting box fixedly communicated with the outside of the maintenance box structure and a dustproof net fixedly mounted between the mounting box and the maintenance box structure. A dust adsorption mechanism which extends into the mounting box and is used for adsorbing and collecting dust outside the dustproof net is arranged outside the mounting box, and a spraying mechanism which extends into the mounting box and is used for cooling air outside the dustproof net is arranged outside the mounting box. According to the car roof maintenance box for the antifouling type car elevator, through cooperative work of all the mechanisms, the functions of heat dissipation, dust adsorption, cooling water spraying, dust screen cleaning and the like are achieved, the advantages of dust screen cleaning automation, the good active cooling effect and the like are achieved, normal operation of the maintenance box can be effectively guaranteed, and the service life of the maintenance box is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of elevator maintenance equipment, in particular to a car top inspection box for an anti-fouling car elevator. Background Art

[0002] Elevators require regular maintenance during use to ensure their normal operation. When inspecting and maintaining an elevator, some inspection tools are required. The elevator car top inspection box is a kind of inspection tool installed on the top of the elevator car, so that maintenance personnel can inspect the elevator safely, reliably and conveniently. The electrical components generally installed in the inspection box include buttons for controlling the slow up and down of the elevator, electric door opening and closing buttons, emergency stop buttons, and switches for normal operation and inspection operation of the car top.

[0003] The Chinese invention patent with announcement number CN114314236B discloses an anti-fouling car top inspection box for a car elevator, including a lower box body, the top surface of the lower box body is connected to an upper box body, the top surface end of the upper box body is rotatably hinged with an anti-fouling cover for protecting the inspection box body, a convex plate is fixedly provided on one side of the top of the anti-fouling cover, and an anti-fouling film is connected above the anti-fouling cover; this invention can use the anti-fouling cover and the anti-fouling film to anti-fouling the outer surface of the car elevator inspection box, thereby avoiding the accumulation of dust and impurities on the upper box body, and the anti-fouling film performs anti-fouling treatment on the surface of the anti-fouling cover, providing double protection.

[0004] The above patent has the following shortcomings: since the car top inspection box is exposed to a dusty environment for a long time, the dust screen is prone to accumulate dust, and there is a lack of effective dust prevention and heat dissipation maintenance mechanism. It is usually necessary to manually clean the dust screen regularly, which not only has low maintenance efficiency, but also makes it difficult to ensure timely and effective heat dissipation. At the same time, there is a lack of active and effective measures for cooling the electrical components in the inspection box, which cannot meet the needs of long-term stable operation.

[0005] Therefore, it is urgent to improve the anti-pollution car elevator car top inspection box to solve the above-mentioned problems. Summary of the Invention

[0006] In response to the shortcomings of the existing technology, the present invention provides a pollution-proof car top inspection box for a car elevator, which has the advantages of automatic dust net cleaning and good active cooling effect. It solves the problem that the existing car top inspection box is exposed to a dusty environment for a long time, the dust net is prone to accumulate dust, and there is a lack of effective dust prevention and heat dissipation maintenance mechanism. The dust net usually needs to be cleaned manually on a regular basis, which not only has low maintenance efficiency, but also makes it difficult to ensure timely and effective heat dissipation. At the same time, there is a lack of active and effective measures for cooling the electrical components in the inspection box, and the demand for long-term stable operation cannot be met.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a car top inspection box for a pollution-proof car elevator, comprising an inspection box structure, a heat dissipation mechanism disposed within the inspection box structure, an installation box fixedly connected to the outside of the inspection box structure, and a dust screen fixedly installed between the installation box and the inspection box structure, the installation box being provided with a dust adsorption mechanism extending into the interior thereof for adsorbing and collecting dust outside the dust screen, and the installation box being provided with a spray mechanism extending into the interior thereof for cooling the air outside the dust screen;

[0008] The heat dissipation mechanism includes a heat dissipation pipe fixedly installed inside the maintenance box structure, a mounting shell fixedly installed inside the heat dissipation pipe, and a heat dissipation fan rotatably installed inside the mounting shell;

[0009] The dust adsorption mechanism includes a mounting tube fixedly mounted on the bottom wall of the mounting box, a suction nozzle fixedly connected to the outside of the mounting tube, a collection box fixedly mounted on the outside of the mounting box, a narrow-necked tube fixedly connected to the top of the collection box, a fan rotatably mounted on the top of the narrow-necked tube, a hose fixedly connected between the mounting tube and the middle of the narrow-necked tube, and a transmission structure arranged inside the mounting box and extending to the outside thereof;

[0010] The spraying mechanism includes a diversion pipe fixedly installed on the inner wall of the installation box, a water tank fixedly installed on the top of the installation box, a piston cylinder fixedly installed on the outside of the installation box, a discharge pipe and a suction pipe fixedly connected to the outside of the piston cylinder, a delivery pipe fixedly connected between the discharge pipe and the diversion pipe, an extraction pipe fixedly connected between the suction pipe and the water tank, and a delivery structure arranged inside the piston cylinder and extending to the outside thereof.

[0011] Furthermore, the transmission structure includes a transmission shaft rotatably connected to the inside of the mounting box and extending to the outside thereof, a connecting sleeve fixedly connected to the outside of the transmission shaft, a wind deflector fixedly connected to the outside of the connecting sleeve, a main bevel gear fixedly installed at the right end of the transmission shaft, and a secondary bevel gear fixedly installed at the top of the fan.

[0012] Furthermore, the transmission shaft is rotatably connected to the inside of the installation box through a bearing. There are four groups of wind deflectors, which are distributed in a ring shape inside the connecting sleeve and located on the outer surface of the dustproof net. The main bevel gear and the secondary bevel gear are meshed with each other.

[0013] Furthermore, the number of the suction nozzles is several, and the suction nozzles are distributed on the outside of the installation pipe at equal intervals. The interior of the installation box is provided with a mounting hole adapted to the hose.

[0014] Furthermore, the conveying structure includes a piston plate slidably connected to the inside of the piston cylinder, a piston rod fixedly connected to the top of the piston plate and extending to the upper surface of the piston cylinder, an abutment plate fixedly installed on the top of the piston rod, a return spring fixedly connected between the abutment plate and the piston cylinder, and a cam fixedly installed on the outside of the transmission shaft.

[0015] Furthermore, the piston rod is slidably connected to the inside of the piston cylinder, the return spring is connected to the outside of the piston rod, the cam is in contact with the upper surface of the abutment plate, and the cam is rotatably connected to the inside of the mounting box and is located on the upper surface of the abutment plate.

[0016] Furthermore, the diversion pipe is fixedly installed on the inner wall of the installation box through a connecting seat, a number of nozzles are fixedly installed on the outside of the diversion pipe, the back of the water tank is fixedly connected to a liquid adding pipe, and the inside of the discharge pipe and the liquid extraction pipe are both rotatably installed with a one-way valve plate, and the two one-way valve plates are arranged opposite to each other.

[0017] Furthermore, a cleaning structure for scraping dust is provided on the outside of the dustproof net, and the cleaning structure includes a connecting shaft rotatably connected to the inside of the dustproof net and extending to the outside thereof, a connecting plate fixedly connected to the end of the connecting shaft away from the dustproof net, a cleaning brush fixedly connected to the back of the connecting plate, a gear ring fixedly installed on the front of the connecting plate, and a transmission gear fixedly installed on the left end of the transmission shaft.

[0018] Furthermore, the cleaning brush abuts against the outer surface of the dustproof net, and the gear ring and the transmission gear are meshed with each other.

[0019] Furthermore, the inspection box structure includes a lower box body, an upper box body and an anti-fouling cover. The upper box body is fixedly connected to the top of the lower box body. The top of the upper box body is rotatably hinged with an anti-fouling cover for protecting the upper box body. The lower box body is installed on the car roof of the elevator car by bolts.

[0020] Compared with the prior art, the present invention provides a pollution-proof car top inspection box for a car elevator, which has the following beneficial effects:

[0021] 1. The anti-pollution car elevator car top inspection box generates suction at the air inlet of the inspection box when the heat dissipation fan is running. The suction acts on the wind direction plate to rotate the wind direction plate, and then drives the fan to rotate through the transmission structure. The rotation of the fan generates negative pressure at the narrow neck tube, which generates a strong adsorption force at the suction nozzle, and adsorbs the dust generated during the cleaning process and the dust entering the inspection box into the installation tube, and then transports it to the collection box through a hose for collection. The dust adsorption process is automatically carried out under the action of the suction generated by the operation of the heat dissipation fan, without the need for additional manual operation, reducing labor intensity, improving the automation level of the inspection box maintenance, and achieving the advantage of automatic dust net cleaning.

[0022] 2. The anti-fouling car elevator car top inspection box rotates the wind direction plate through the transmission structure to drive the transmission shaft to rotate, and the rotation of the transmission shaft drives the cam to rotate. The rotation of the cam controls the up and down movement of the piston plate in the piston cylinder through the conveying structure, thereby accurately controlling the extraction and spraying of cooling water. The cooling water can be accurately sprayed according to the operation of the heat dissipation fan, thereby improving the cooling effect of the air at the dust screen inlet and achieving the advantage of good active cooling effect.

[0023] 3. The anti-fouling car elevator car top inspection box uses the suction force generated by the operation of the heat dissipation fan to drive the wind deflector to rotate, and then drives the cleaning structure to work through the transmission structure, which can comprehensively scrape the dust on the outer surface of the dustproof net, clean it more thoroughly, effectively ensure the ventilation performance of the dustproof net, and improve the heat dissipation effect of the inspection box. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural perspective view of a car top inspection box for an anti-fouling car elevator according to the present invention;

[0025] Figure 2 This is a structural sectional perspective view of a lower box body and an installation box of a car top inspection box for an anti-fouling car elevator according to the present invention;

[0026] Figure 3 This is a structural perspective view of an installation box for a car top inspection box for an anti-fouling car elevator according to the present invention;

[0027] Figure 4 This is a structural stereoscopic diagram of a dust-proof net, dust adsorption mechanism, spraying mechanism and cleaning structure of a car top inspection box for an anti-fouling car elevator according to the present invention;

[0028] Figure 5 This is a three-dimensional diagram of the dust adsorption mechanism and cleaning structure of a car top inspection box for an anti-fouling car elevator according to the present invention;

[0029] Figure 6 This is a structural perspective view of a cleaning structure of a car top inspection box for an anti-fouling car elevator according to the present invention;

[0030] Figure 7 This is a structural perspective view of a dust adsorption mechanism of a car top inspection box for an anti-fouling car elevator according to the present invention;

[0031] Figure 8 This is a structural perspective view of a spraying mechanism for a car top inspection box for an anti-fouling car elevator according to the present invention;

[0032] Figure 9 The present invention is a structural sectional perspective view of a conveying structure of a car top inspection box for an anti-fouling car elevator.

[0033] Figure: 1. Inspection box structure; 11. Lower box; 12. Upper box; 13. Anti-fouling cover; 2. Heat dissipation mechanism; 21. Heat dissipation duct; 22. Mounting shell; 23. Heat dissipation fan; 3. Mounting box; 4. Dust screen; 5. Dust absorption mechanism; 51. Narrow neck tube; 52. Fan; 53. Mounting tube; 54. Suction nozzle; 55. Hose; 56. Collection box; 57. Collection frame; 58. Drive shaft; 59. Connecting sleeve; 510. Wind deflector; 51 1. Main bevel gear; 512. Sub-bevel gear; 513. Cam; 6. Spraying mechanism; 61. Diverter pipe; 62. Water tank; 63. Piston cylinder; 64. Discharge pipe; 65. Extraction pipe; 66. Piston plate; 67. Piston rod; 68. Abutment plate; 69. Return spring; 610. Delivery pipe; 611. Extraction pipe; 7. Cleaning structure; 71. Connecting shaft; 72. Connecting plate; 73. Cleaning brush; 74. Gear ring; 75. Transmission gear. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0035] See also Figures 1 to 9 In this embodiment, a car top inspection box for an anti-fouling car elevator includes an inspection box structure 1, a heat dissipation mechanism 2 arranged inside the inspection box structure 1, an installation box 3 fixedly connected to the outside of the inspection box structure 1, and a dustproof net 4 fixedly installed between the installation box 3 and the inspection box structure 1. The outside of the installation box 3 is provided with a dust adsorption mechanism 5 extending into the interior thereof for adsorbing and collecting dust outside the dustproof net 4. The outside of the installation box 3 is provided with a spraying mechanism 6 extending into the interior thereof for cooling the air outside the dustproof net 4.

[0036] The heat dissipation mechanism 2 includes a heat dissipation pipe 21 fixedly installed inside the maintenance box structure 1 , a mounting shell 22 fixedly installed inside the heat dissipation pipe 21 , and a heat dissipation fan 23 rotatably installed inside the mounting shell 22 .

[0037] Specifically, the inspection box structure 1 includes a lower box body 11, an upper box body 12 and an anti-fouling cover 13. The upper box body 12 is fixedly connected to the top of the lower box body 11. The top of the upper box body 12 is rotatably hinged with an anti-fouling cover 13 for protecting the upper box body 12. The lower box body 11 is installed on the car roof of the elevator car by bolts, and the inspection box and the elevator power are connected. The anti-fouling cover 13 is closed and buckled on the upper box body 12, which can be used to anti-foul the outer surface of the elevator car inspection box, avoiding the accumulation of dust and impurities on the upper box body 12, making it more convenient to use. When in use, the anti-fouling cover 13 is opened and the function of the car is tested through the inspection button set on the upper box body 12. A positioning plate is installed on the top surface of the upper box body 12, and a test button and a reset button are embedded on the surface of the positioning plate.

[0038] See also Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 7 In this embodiment, the dust adsorption mechanism 5 includes a mounting tube 53 fixedly mounted on the inner bottom wall of the mounting box 3, a suction nozzle 54 fixedly connected to the outside of the mounting tube 53, a collection box 56 fixedly mounted on the outside of the mounting box 3, a narrow-necked tube 51 fixedly connected to the top of the collection box 56, a fan 52 rotatably mounted on the top of the narrow-necked tube 51, a hose 55 fixedly connected between the mounting tube 53 and the middle part of the narrow-necked tube 51, and a transmission structure arranged inside the mounting box 3 and extending to the outside thereof.

[0039] Among them, the transmission structure includes a transmission shaft 58 that is rotatably connected to the inside of the installation box 3 and extends to the outside thereof, a connecting sleeve 59 that is fixedly connected to the outside of the transmission shaft 58, a wind deflector 510 that is fixedly connected to the outside of the connecting sleeve 59, a main bevel gear 511 that is fixedly installed on the right end of the transmission shaft 58, and a secondary bevel gear 512 that is fixedly installed on the top of the fan 52.

[0040] Specifically, the transmission shaft 58 is rotatably connected to the inside of the installation box 3 through a bearing. There are four groups of wind deflectors 510. The four groups of wind deflectors 510 are distributed in a ring shape inside the connecting sleeve 59 and are located on the outer surface of the dustproof net 4. The main bevel gear 511 and the secondary bevel gear 512 are engaged with each other.

[0041] It should be noted that there are a plurality of suction nozzles 54 , which are distributed on the outside of the mounting tube 53 at equal intervals. A mounting hole adapted to the hose 55 is provided inside the mounting box 3 .

[0042] During use, when the cooling fan 23 of this embodiment is in operation, suction is generated at the air inlet of the inspection box. This suction acts on the wind deflector 510, causing it to rotate. The rotation of the wind deflector 510 drives the connecting sleeve 59, which in turn drives the transmission shaft 58. Because the main bevel gear 511 and the secondary bevel gear 512 are meshed with each other, the rotation of the transmission shaft 58 drives the main bevel gear 511, which in turn drives the secondary bevel gear 512, which in turn drives the fan 52. The rotation of the fan 52 generates negative pressure in the narrow-necked tube 51. This negative pressure is transmitted to the mounting tube 53 via the hose 55, generating a strong suction force at the suction nozzle 54. Dust generated during cleaning, as well as dust that enters the inspection box, is attracted to the mounting tube 53 and then transported via the hose 55 to the collection box 56 for collection.

[0043] See also Figure 4 、 Figure 8 and Figure 9 In this embodiment, the spraying mechanism 6 includes a diversion pipe 61 fixedly installed on the inner wall of the installation box 3, a water tank 62 fixedly installed on the top of the installation box 3, a piston cylinder 63 fixedly installed on the outside of the installation box 3, a discharge pipe 64 and a suction pipe 65 fixedly connected to the outside of the piston cylinder 63, a delivery pipe 610 fixedly connected between the discharge pipe 64 and the diversion pipe 61, an extraction pipe 611 fixedly connected between the suction pipe 65 and the water tank 62, and a delivery structure arranged inside the piston cylinder 63 and extending to the outside thereof.

[0044] The conveying structure includes a piston plate 66 slidably connected to the interior of the piston cylinder 63, a piston rod 67 fixedly connected to the top of the piston plate 66 and extending to the upper surface of the piston cylinder 63, an abutment plate 68 fixedly mounted to the top of the piston rod 67, a return spring 69 fixedly connected between the abutment plate 68 and the piston cylinder 63, and a cam 513 fixedly mounted on the exterior of the transmission shaft 58. The piston rod 67 is slidably connected to the interior of the piston cylinder 63, the return spring 69 is connected around the exterior of the piston rod 67, the cam 513 abuts against the upper surface of the abutment plate 68, and the cam 513 is rotatably connected to the interior of the mounting box 3 and is located on the upper surface of the abutment plate 68.

[0045] Specifically, the diverter pipe 61 is fixedly installed on the inner wall of the installation box 3 through a connecting seat, a number of nozzles are fixedly installed on the outside of the diverter pipe 61, the back of the water tank 62 is fixedly connected to a liquid adding pipe, and the inside of the discharge pipe 64 and the liquid extraction pipe 65 are both rotatably installed with a one-way valve plate, and the two one-way valve plates are arranged opposite to each other.

[0046] When this embodiment is in use, when the cooling fan 23 is running, suction is generated to drive the wind deflector 510 to rotate. The rotation of the wind deflector 510 drives the transmission shaft 58 to rotate through the transmission structure. The rotation of the transmission shaft 58 drives the cam 513 to rotate. When the cam 513 rotates, its raised part contacts the upper surface of the abutment plate 68 and pushes the abutment plate 68 to move downward. The abutment plate 68 drives the piston rod 67 to move downward, and the piston rod 67 drives the piston plate 66 to move downward. At this time, negative pressure is formed inside the piston cylinder 63, the one-way valve plate in the liquid extraction pipe 65 opens, and the cooling water in the water tank 62 is sucked into the piston cylinder 63 through the extraction pipe 611. When the raised part of the cam 513 leaves the upper surface of the abutment plate 68, the return spring 69 pushes the abutment plate 68 to move upward, the abutment plate 68 drives the piston rod 67 to move upward, and the piston rod 67 drives the piston plate 66 to move upward. At this time, the pressure in the piston cylinder 63 increases, the one-way valve plate in the discharge pipe 64 opens, and the cooling water in the piston cylinder 63 enters the diversion pipe 61 through the delivery pipe 610, realizing spray cooling of the cooling water, thereby actively cooling the air at the inlet of the dustproof net 4.

[0047] See also Figures 4 to 6 In this embodiment, a cleaning mechanism 7 for scraping dust is provided on the exterior of the dust screen 4. This mechanism includes a connecting shaft 71 rotatably connected to the interior of the dust screen 4 and extending to the exterior thereof; a connecting plate 72 fixedly connected to the end of the connecting shaft 71 distal from the dust screen 4; a cleaning brush 73 fixedly connected to the back of the connecting plate 72; a gear ring 74 fixedly mounted on the front of the connecting plate 72; and a transmission gear 75 fixedly mounted on the left end of the transmission shaft 58. The suction force generated by the operation of the cooling fan 23 drives the wind deflector 510 to rotate, which in turn drives the cleaning mechanism 7 via the transmission structure, achieving automatic cleaning of the dust screen 4.

[0048] The connecting plate 72 and the cleaning brush 73 are both rotatably connected to the outside of the dustproof net 4 , the cleaning brush 73 abuts against the outer surface of the dustproof net 4 , and the gear ring 74 and the transmission gear 75 are meshed with each other.

[0049] The working principle of the above embodiment is:

[0050] During use, the heat dissipation fan 23 is started by the controller to work in the heat dissipation pipe 21, generating suction, so that the external air enters the lower box body 11 of the maintenance box structure 1 through the dustproof net 4, and the hot air is discharged through the heat dissipation pipe 21 under the action of the heat dissipation fan 23, thereby realizing heat dissipation inside the maintenance box. The suction force generated by the operation of the heat dissipation fan 23 acts on the wind deflector 510, causing the wind deflector 510 to rotate, driving the connecting sleeve 59 and the transmission shaft 58 to rotate. The rotation of the transmission shaft 58 drives the transmission gear 75 to rotate. The transmission gear 75 engages with the gear ring 74, driving the gear ring 74 to rotate. The gear ring 74 drives the connecting plate 72 and the connecting shaft 71 to rotate. The connecting plate 72 drives the cleaning brush 73 to rotate, and the cleaning brush 73 scrapes and cleans the dust on the outer surface of the dustproof net 4; the rotation of the transmission shaft 58 drives the main bevel gear 511 to rotate, and the main bevel gear 511 engages with the secondary bevel gear 512 to drive the fan 52 to rotate. The rotation of the fan 52 generates suction at the suction nozzle 54, and the dust outside the dustproof net 4 is sucked into the mounting tube 53 through the suction nozzle 54, and then enters the narrow neck tube 51 through the hose 55, and finally enters the collection box 56 for collection. The rotation of the transmission shaft 58 drives the cam 513 to rotate, which in turn pushes the abutment plate 68 downward. The abutment plate 68 drives the piston rod 67 and the piston plate 66 downward, creating negative pressure in the piston cylinder 63. The one-way valve plate in the liquid extraction pipe 65 opens, and the cooling water in the water tank 62 is drawn into the piston cylinder 63. When the raised portion of the cam 513 leaves the abutment plate 68, the return spring 69 pushes the abutment plate 68 upward, which in turn moves the piston plate 66 upward. The pressure in the piston cylinder 63 increases, and the one-way valve plate in the liquid discharge pipe 64 opens. The cooling water enters the diverter pipe 61 through the delivery pipe 610 and is sprayed into the inspection box through the nozzle, cooling the air. This achieves the functions of heat dissipation, dust absorption, cooling water spraying, and cleaning the dust screen 4.

[0051] The installation method, connection method or setting method disclosed in this embodiment are all common mechanical connection methods, and can be implemented as long as they can achieve their beneficial effects. In addition, the electrical components appearing in this embodiment are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer that plays a control role. Technicians in this field can control the electrical components through simple programming, and the existing disclosed power connection technology is also common knowledge in this field, so the specific structural composition and working principle will not be described in detail in this embodiment.

[0052] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0053] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A car top inspection box for an anti-fouling car elevator, characterized by: The invention comprises an inspection box structure (1), a heat dissipation mechanism (2) arranged inside the inspection box structure (1), an installation box (3) fixedly connected to the outside of the inspection box structure (1), and a dustproof net (4) fixedly installed between the installation box (3) and the inspection box structure (1); a dust adsorption mechanism (5) extending to the inside of the installation box (3) for adsorbing and collecting dust outside the dustproof net (4); and a spraying mechanism (6) extending to the inside of the installation box (3) for cooling the air outside the dustproof net (4); The heat dissipation mechanism (2) comprises a heat dissipation pipe (21) fixedly mounted inside the maintenance box structure (1), a mounting shell (22) fixedly mounted inside the heat dissipation pipe (21), and a heat dissipation fan (23) rotatably mounted inside the mounting shell (22); The dust adsorption mechanism (5) comprises a mounting tube (53) fixedly mounted on the inner bottom wall of the mounting box (3), a suction nozzle (54) fixedly connected to the outside of the mounting tube (53), a collection box (56) fixedly mounted on the outside of the mounting box (3), a narrow-necked tube (51) fixedly connected to the top of the collection box (56), a fan (52) rotatably mounted on the top of the narrow-necked tube (51), a hose (55) fixedly connected between the mounting tube (53) and the middle of the narrow-necked tube (51), and a transmission structure arranged inside the mounting box (3) and extending to the outside thereof; The spraying mechanism (6) comprises a diverter pipe (61) fixedly mounted on the inner wall of the installation box (3), a water tank (62) fixedly mounted on the top of the installation box (3), a piston cylinder (63) fixedly mounted on the outside of the installation box (3), a liquid discharge pipe (64) and a liquid extraction pipe (65) fixedly connected to the outside of the piston cylinder (63), a delivery pipe (610) fixedly connected between the liquid discharge pipe (64) and the diverter pipe (61), an extraction pipe (611) fixedly connected between the liquid extraction pipe (65) and the water tank (62), and a delivery structure arranged inside the piston cylinder (63) and extending to the outside thereof.

2. The anti-fouling car top inspection box for an elevator car according to claim 1, characterized in that: The transmission structure comprises a transmission shaft (58) rotatably connected to the interior of the installation box (3) and extending to the exterior thereof, a connecting sleeve (59) fixedly connected to the exterior of the transmission shaft (58), a wind deflector (510) fixedly connected to the exterior of the connecting sleeve (59), a main bevel gear (511) fixedly mounted on the right end of the transmission shaft (58), and a secondary bevel gear (512) fixedly mounted on the top of the fan (52).

3. The anti-fouling car top inspection box for an elevator car according to claim 2, characterized in that: The transmission shaft (58) is rotatably connected to the interior of the installation box (3) through a bearing. The number of the wind direction plates (510) is four groups. The four groups of wind direction plates (510) are sequentially distributed in a ring shape inside the connecting sleeve (59) and located on the outer surface of the dustproof net (4). The main bevel gear (511) and the auxiliary bevel gear (512) are meshed with each other.

4. The anti-fouling car top inspection box for an elevator car according to claim 1, characterized in that: There are a plurality of suction nozzles (54), which are distributed at equal intervals on the outside of the installation tube (53). A mounting hole adapted to the hose (55) is provided inside the installation box (3).

5. The anti-fouling car top inspection box for an elevator car according to claim 1, characterized in that: The conveying structure includes a piston plate (66) slidably connected to the inside of the piston cylinder (63), a piston rod (67) fixedly connected to the top of the piston plate (66) and extending to the upper surface of the piston cylinder (63), an abutment plate (68) fixedly installed on the top of the piston rod (67), a return spring (69) fixedly connected between the abutment plate (68) and the piston cylinder (63), and a cam (513) fixedly installed on the outside of the transmission shaft (58).

6. The anti-fouling car top inspection box for an elevator car according to claim 5, characterized in that: The piston rod (67) is slidably connected to the inside of the piston cylinder (63), the return spring (69) is connected to the outside of the piston rod (67), the cam (513) is in contact with the upper surface of the abutment plate (68), and the cam (513) is rotatably connected to the inside of the installation box (3) and is located on the upper surface of the abutment plate (68).

7. The anti-fouling car top inspection box for an elevator car according to claim 1, characterized in that: The diverter pipe (61) is fixedly mounted on the inner wall of the installation box (3) via a connecting seat. A plurality of nozzles are fixedly mounted on the outside of the diverter pipe (61). The back of the water tank (62) is fixedly connected to a liquid adding pipe. One-way valve plates are rotatably mounted inside the liquid discharge pipe (64) and the liquid extraction pipe (65), and the two one-way valve plates are arranged opposite to each other.

8. The anti-fouling car top inspection box for an elevator car according to claim 1, characterized in that: The dustproof net (4) is provided with a cleaning structure (7) for scraping dust outside. The cleaning structure (7) comprises a connecting shaft (71) rotatably connected to the inside of the dustproof net (4) and extending to the outside thereof, a connecting plate (72) fixedly connected to one end of the connecting shaft (71) away from the dustproof net (4), a cleaning brush (73) fixedly connected to the back of the connecting plate (72), a gear ring (74) fixedly mounted on the front of the connecting plate (72), and a transmission gear (75) fixedly mounted on the left end of the transmission shaft (58).

9. The anti-fouling car top inspection box for an elevator car according to claim 8, characterized in that: The cleaning brush (73) abuts against the outer surface of the dustproof net (4), and the gear ring (74) and the transmission gear (75) are meshed with each other.

10. The anti-fouling car top inspection box for an elevator car according to claim 1, characterized in that: The inspection box structure (1) comprises a lower box body (11), an upper box body (12) and an anti-fouling cover (13); the upper box body (12) is fixedly connected to the top of the lower box body (11); the top of the upper box body (12) is rotatably hinged with an anti-fouling cover (13) for protecting the upper box body (12); and the lower box body (11) is mounted on the car roof of the elevator car by bolts.

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