Elevator with air circulation purification function

Abstract

The invention discloses an elevator with an air circulation and purification function, and belongs to the technical field of air circulation.The elevator comprises an elevator car, a gas circulation frame and a side car frame are arranged at the upper end of the elevator car, a car door is installed at the front end of the elevator car, and a cleaning unit is movably installed in the side car frame; the cleaning unit comprises a cleaning sleeve movably arranged at one end of the side compartment frame, two ejector rods are fixedly connected to the outer surface of the cleaning sleeve, the corresponding ends of the two ejector rods are jointly and fixedly connected with a support, a temperature control unit is installed on the inner side of the gas circulation frame, and a driving unit is fixedly installed on the inner side of the side compartment frame. A limiting sliding rod is transversely and fixedly connected into the air circulation frame, automatic cleaning of parts such as a fan blade filter screen for air circulation in the elevator is facilitated, dust accumulation is prevented, the circulation smoothness can be improved, energy consumption is reduced, and the circulating air quality is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air circulation, and more particularly to an elevator with air circulation and purification functions. Background Art

[0002] An elevator is a permanent transportation device that serves several specific floors in a building. Its car runs on at least two rows of rigid tracks that are perpendicular to the horizontal plane or have an inclination angle of less than 15° to the plumb line. It includes a machine room, a traction system, a car and other structures. The car is an elevator component that transports passengers and goods. It is the working part of the elevator. The car consists of a car frame and a car body. As the demand for elevators increases, the requirements for the elevator's operating environment are also relatively higher, especially the air circulation in the elevator is particularly important.

[0003] Existing elevators with air circulation and purification functions have the following shortcomings in use: first, the air inside the elevator is not circulated or the circulation is poor, which causes the air quality in the elevator to decline, affecting the respiratory health of passengers. Although exhaust and air intake are installed to circulate the air in the cabin, because the air in the elevator shaft is heavily humid, the fan blades are easily adsorbed and accumulated dust and other impurities, and cleaning and maintenance are more troublesome, resulting in a decline in the quality of the circulating air. In addition, the elevator is running every day, and the flying dust on the inlet and outlet air filters accumulates quickly. If it is not cleaned frequently, the air circulation efficiency of the elevator will be reduced, energy consumption will increase, and the air circulation purification quality of the elevator will be affected.

[0004] The existing elevators with air circulation and purification functions have the above-mentioned problems. In view of this, we propose an elevator with air circulation and purification functions. Summary of the invention

[0005] Technical issues to be solved The object of the present invention is to provide an elevator with an air circulation and purification function, so as to solve the problem in the above background technology that the existing elevators with air circulation and purification function cannot automatically clean the fans of the elevator's inlet and outlet air circulation system, absorb dust, and are troublesome to clean. In addition, the inlet and outlet air filters are troublesome to maintain, and if they are not cleaned frequently, the air circulation efficiency of the elevator will be reduced, energy consumption will be increased, and the quality of the elevator air circulation purification will be affected.

[0006] 2. Technical solution An elevator with air circulation and purification function comprises an elevator car, wherein a gas circulation frame and a side car frame are arranged at the upper end of the elevator car, a car door is installed at the front end of the elevator car, a cleaning unit is movably installed inside the side car frame, the cleaning unit comprises a cleaning sleeve movably arranged at one end of the side car frame, two push rods are fixedly connected to the outer surface of the cleaning sleeve, and a bracket is fixedly connected to the corresponding ends of the two push rods, a temperature control unit is installed on the inner side of the gas circulation frame, a driving unit is fixedly installed on the inner side of the side car frame, a limit slide bar is fixedly connected to the inner side of the gas circulation frame, a collar is slidably sleeved on the outer surface of the limit slide bar, a mounting strip is fixedly connected to the outer surface of the collar, a brush is installed at the bottom end of the mounting strip, a circulating air outlet hood and a circulating air inlet hood are symmetrically arranged on the inner side of the gas circulation frame, a linkage unit is installed inside the gas circulation frame and between the circulating air outlet hood and the circulating air inlet hood, a positioning port corresponding to the cleaning sleeve is opened on one side of the circulating air inlet hood, and a rotating shaft is installed on the inner side of the side car frame for rotation.

[0007] Preferably, a cover plate is rotatably connected to the upper end of the gas circulation frame, two ventilation mesh plates are arranged on the upper end of the gas circulation frame, and a side mesh plate is arranged on the upper end of the side compartment frame.

[0008] Preferably, a discharge port is formed on an outer wall of the gas circulation frame, and a sewage discharge groove is provided on an inner side of the gas circulation frame, and the sewage discharge groove is communicated with the discharge port.

[0009] Preferably, the temperature control unit comprises a heat exchanger fixedly mounted on the inner side of the gas circulation frame, one end of the heat exchanger is connected to two delivery pipes, and the two delivery pipes are respectively connected to the circulation outlet hood or the circulation inlet hood.

[0010] Preferably, the driving unit includes a bidirectional stepper motor fixedly mounted on the inner wall of the side compartment frame, one side output shaft of the bidirectional stepper motor is fixedly connected to a reciprocating screw, the outer surface of the reciprocating screw is threadedly sleeved with a threaded sleeve block, the threaded sleeve block is fixedly connected to the mounting strip, and the other side of the bidirectional stepper motor is fixedly sleeved with a first pulley on the fixed output end.

[0011] Preferably, rotating rods are inserted and rotatably installed on the inner sides of the circulating air outlet hood and the circulating air inlet hood, and the two rotating rods are respectively located inside the circulating air outlet hood or the circulating air inlet hood and are annularly and equidistantly installed with fan blades.

[0012] Preferably, the circulating air outlet hood and the circulating air inlet hood are both provided with air induced draft plates, the inner sides of the circulating air outlet hood are both provided with first flow diversion nets on the upper and lower sides, and the inner sides of the circulating air inlet hood are both provided with second flow diversion nets on the upper and lower sides, and the two air induced draft plates are used in conjunction with the first flow diversion net or the second flow diversion net respectively.

[0013] Preferably, the linkage unit includes a mounting tube fixedly connected between the circulating air outlet hood and the circulating air inlet hood, a micro motor is fixedly mounted on the upper end of the mounting tube, an output shaft of the micro motor passes through the mounting tube and is fixedly sleeved with a main bevel gear, and a lighting lamp is installed on the inner side of the mounting tube.

[0014] Preferably, one end of one of the rotating rods passes through the circulating air outlet hood and enters the inner side of the mounting tube and is fixedly mounted with a first bevel gear, and one end of the other rotating rod passes through the circulating air inlet hood and enters the inner side of the mounting tube and is fixedly mounted with a second bevel gear, and the first bevel gear or the second bevel gear is meshed with the main bevel gear.

[0015] Preferably, the rotating shaft is located on the inner side of the side box frame and is fixedly sleeved with a reciprocating screw, a traction rod is slidably provided on the outer surface of the reciprocating screw, one end of the bracket is fixedly connected to a movable frame, the traction rod and the movable frame are fixedly inserted, the rotating shaft is located on the inner side of the side box frame and is fixedly sleeved with a second pulley, the first pulley and the second pulley are connected by a belt, the inner wall of the side box frame is fixedly connected with a through-mouth frame, and the movable frame and the through-mouth frame are slidably arranged.

[0016] 3. Beneficial effects The present invention drives the main bevel gear to rotate through the operation of a micro motor, so that the two meshing second bevel gears and the main bevel gear are driven to rotate in the opposite direction. When the first bevel gear and the second bevel gear rotate, they respectively drive the two rotating rods to rotate, further driving the fan blades to rotate, and the wind guide of the air guide plate causes the air in the circulating air outlet hood to be discharged through the first diverter net, and the air in the circulating air inlet hood enters through the second diverter net. Since there are many air pollutants in the elevator shaft, they must be cleaned in time, and there is less exhaust dust in the circulating air outlet hood, which can be cleaned uniformly when personnel perform maintenance. Then, when the bidirectional stepping motor is operated, the output shaft on one side is driven to rotate, and the reciprocating screw rod can be driven to rotate after the reciprocating screw rod rotates, which can drive the threaded sleeve block to move horizontally, further drive the installation strip plate to move, and drive the sleeve ring to slide smoothly outside the limit slide rod, and the movement of the installation strip plate drives the brush to move horizontally to clean the dust and debris adsorbed and filtered on the circulating air outlet hood and the circulating air inlet hood.

[0017] The present invention drives the first pulley to rotate by the output shaft on the lower side driven by the bidirectional stepping motor, thereby driving the second pulley to rotate through the belt, so that the rotation of the rotating shaft drives the reciprocating screw to rotate, so that the traction rod is driven to slide outside the reciprocating screw, and the main bevel gear is driven to slide on the through-mouth frame during sliding, and further drives the bracket to move and push the top rod to move. The movement of the top rod drives the cleaning sleeve from the rotating rod to enter the circulating air intake hood to clean the fan blades, thereby reducing dust accumulation in the circulating air intake hood.

[0018] Before the elevator runs again, the bidirectional stepping motor is turned off, and the cold and hot air are transported from the delivery pipe to the circulating air intake hood through the heat exchanger according to the season. When the elevator is maintained, the cover is opened to take out large debris, and small particles and dust are pushed into the sewage trough, which are flushed with water and discharged from the discharge port to the outside of the elevator. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the enlarged structure of the middle gas circulation frame and the side compartment frame; Figure 3 For the present invention Figure 2 Schematic diagram of the internal structure in cross-section; Figure 4 For the present invention Figure 3 Schematic diagram of the cross-sectional structure of the medium-cycle air outlet hood and the cycle air inlet hood; Figure 5 For the present invention Figure 2 Schematic diagram of the cross-sectional structure of the middle gas circulation frame; Figure 6 For the present invention Figure 4 Schematic diagram of the cross-sectional expansion structure of the medium-circulation air outlet hood and the circulation air inlet hood; Figure 7 For the present invention Figure 4 Schematic diagram of the cleaning unit structure; Figure 8 For the present invention Figure 5 The enlarged structural diagram at A in the middle; Fig. 9 For the present invention Figure 1 Open the Structure Schematic.

[0020] Explanation of the numbers in the figure: 1. Elevator car; 2. Car door; 3. Gas circulation frame; 4. Cover plate; 5. Ventilation mesh plate; 551. Cleaning unit; 552. Temperature control unit; 553. Drive unit; 554. Linkage unit; 6. Side mesh plate; 7. Side car frame; 8. Exhaust port; 9. First diversion net; 10. Second diversion net; 11. Illumination lamp; 12. Bidirectional stepping motor; 13. Reciprocating screw rod; 14. Heat exchanger; 15. Delivery pipe; 16. Micro motor; 17. Installation tube; 18. Circulation outlet hood; 19 , circulating air intake hood; 20, limiting slide bar; 21, first pulley; 22, drain chute; 23, fan blade; 24, rotating rod; 25, air induction plate; 26, cleaning sleeve; 27, moving frame; 28, push rod; 29, through-mouth frame; 30, bracket; 31, threaded sleeve block; 32, collar; 33, mounting strip; 34, positioning port; 35, first bevel gear; 36, second bevel gear; 37, main bevel gear; 38, rotating shaft; 39, second pulley; 40, reciprocating screw; 41, brush; 42, traction rod. DETAILED DESCRIPTION

[0021] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0022] In the description of the present invention, “plurality” means two or more than two, unless otherwise clearly and specifically defined.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] See also Figure 1-9 , the present invention provides a technical solution: Embodiment 1 An elevator with air circulation and purification function comprises an elevator car 1, a gas circulation frame 3 and a side car frame 7 are arranged at the upper end of the elevator car 1, a car door 2 is installed at the front end of the elevator car 1, a cleaning unit 551 is movably installed inside the side car frame 7, the cleaning unit 551 comprises a cleaning sleeve 26 movably arranged at one end of the side car frame 7, the outer surface of the cleaning sleeve 26 is fixedly connected with two push rods 28, the corresponding ends of the two push rods 28 are commonly fixedly connected with a bracket 30, a temperature control unit 552 is installed on the inner side of the gas circulation frame 3, a driving unit 553 is fixedly installed on the inner side of the side car frame 7, the gas circulation frame 3 is laterally fixedly connected with a limit slide rod 20, and the limit slide rod 2 0 is slidably sleeved with a collar 32, the outer surface of the collar 32 is fixedly connected with a mounting strip 33, the bottom end of the mounting strip 33 is installed with a brush 41, the inner side of the gas circulation frame 3 is symmetrically provided with a circulating air outlet hood 18 and a circulating air inlet hood 19, a linkage unit 554 is installed inside the gas circulation frame 3 and between the circulating air outlet hood 18 and the circulating air inlet hood 19, a positioning port 34 corresponding to the cleaning sleeve 26 is opened on one side of the circulating air inlet hood 19, a rotating shaft 38 is rotatably installed on the inner side of the side compartment frame 7, the upper end of the gas circulation frame 3 is rotatably connected with a cover plate 4, the upper end of the gas circulation frame 3 is provided with two ventilation mesh plates 5, and the upper end of the side compartment frame 7 is provided with a side mesh plate 6.

[0025] Specifically, the drive unit 553 includes a bidirectional stepper motor 12 fixedly mounted on the inner wall of the side compartment frame 7, one side output shaft of the bidirectional stepper motor 12 is fixedly connected with a reciprocating screw 13, the outer surface of the reciprocating screw 13 is threadedly sleeved with a threaded sleeve block 31, the threaded sleeve block 31 is fixedly connected to the mounting strip 33, the other side of the bidirectional stepper motor 12 is fixedly sleeved with a first pulley 21 at the fixed output end, the inner sides of the circulating air outlet hood 18 and the circulating air inlet hood 19 are both interlaced and rotatably installed with a rotating rod 24, the two rotating rods 24 are respectively located inside the circulating air outlet hood 18 or the circulating air inlet hood 19, and the fan blades 23 are equidistantly installed in an annular manner, and the inner sides of the circulating air outlet hood 18 and the circulating air inlet hood 19 are both provided with An air induced draft plate 25 is provided, and a first diversion net 9 is provided on the upper and lower sides of the inner side of the circulating air outlet hood 18, and a second diversion net 10 is provided on the upper and lower sides of the inner side of the circulating air inlet hood 19. The two air induced draft plates 25 are used in conjunction with the first diversion net 9 or the second diversion net 10 respectively. When the bidirectional stepping motor 12 is in operation, the output shaft on one side drives the reciprocating screw 13 to rotate. After the reciprocating screw 13 rotates, it can drive the threaded sleeve block 31 to move horizontally, further drive the installation strip 33 to move, and drive the collar 32 to slide smoothly outside the limiting slide rod 20. Under the movement of the installation strip 33, the brush 41 is driven to move horizontally to clean the dust and debris adsorbed and filtered on the circulating air outlet hood 18 and the circulating air inlet hood 19.

[0026] Furthermore, the linkage unit 554 includes a mounting tube 17 fixedly connected between the circulating air outlet hood 18 and the circulating air inlet hood 19, a micro motor 16 is fixedly mounted on the upper end of the mounting tube 17, the output shaft of the micro motor 16 passes through the mounting tube 17 and is fixedly sleeved with a main bevel gear 37, an illuminating lamp 11 is installed on the inner side of the mounting tube 17, one end of one rotating rod 24 passes through the circulating air outlet hood 18 and enters the inner side of the mounting tube 17 and is fixedly sleeved with a first bevel gear 35, and one end of the other rotating rod 24 passes through the circulating air inlet hood 19 and enters the inner side of the mounting tube 17 and is fixedly sleeved with a second bevel gear 36, and the first bevel gear 35 or the second bevel gear 36 is connected to the main bevel gear 37. The bevel gears 37 are meshed with each other, and the main bevel gear 37 is driven to rotate by the operation of the micro motor 16, so that the two meshed second bevel gears 36 rotate in the opposite direction to the main bevel gear 37. When the first bevel gear 35 and the second bevel gear 36 rotate, the two rotating rods 24 are respectively driven to rotate, and the fan blades 23 are further driven to rotate. The air in the circulating air outlet hood 18 is discharged through the first diverter net 9 through the wind guide plate 25, and the air in the circulating air inlet hood 19 is entered through the second diverter net 10. Since there are many air pollutants in the elevator shaft, it is necessary to clean it in time, and the exhaust dust in the circulating air outlet hood 18 is less and can be cleaned uniformly when personnel perform maintenance.

[0027] Embodiment 2 Specifically, the rotating shaft 38 is located on the inner side of the side frame 7 and is fixedly sleeved with a reciprocating screw 40. The outer surface of the reciprocating screw 40 is slidably provided with a traction rod 42. One end of the bracket 30 is fixedly connected to the moving frame 27. The traction rod 42 is fixedly inserted with the moving frame 27. The rotating shaft 38 is located on the inner side of the side frame 7 and is fixedly sleeved with a second pulley 39. The first pulley 21 is connected to the second pulley 39 through a belt. The inner wall of the side frame 7 is fixedly connected with a through-hole frame 29. The moving frame 27 and the through-hole frame 29 are slidably arranged. The output shaft on the lower side of the machine 12 drives the first pulley 21 to rotate, thereby driving the second pulley 39 to rotate through the belt, so that the rotation of the rotating shaft 38 drives the reciprocating screw 40 to rotate, so that the traction rod 42 is driven to slide outside the reciprocating screw 40, and the main bevel gear 37 is driven to slide on the through-mouth frame 29 during sliding, further driving the bracket 30 to move and push the top rod 28 to move, and the top rod 28 moves to drive the cleaning sleeve 26 from the rotating rod 24 into the circulating air intake hood 19 to clean the fan blades 23, thereby reducing the accumulation of dust in the circulating air intake hood 19.

[0028] Furthermore, a discharge port 8 is provided on the outer wall of the gas circulation frame 3, and a sewage trough 22 is provided on the inner side of the gas circulation frame 3, and the sewage trough 22 is connected to the discharge port 8. The temperature control unit 552 includes a heat exchanger 14 fixedly installed on the inner side of the gas circulation frame 3, and one end of the heat exchanger 14 is connected to two delivery pipes 15, and the two delivery pipes 15 are respectively connected to the circulating air outlet hood 18 or the circulating air inlet hood 19. The heat exchanger 14 delivers cold and hot air from the delivery pipes 15 to the circulating air inlet hood 19 according to the season. When the elevator is maintained, the cover plate 4 is opened to take out large debris, and small particles and dust are pushed into the sewage trough 22, which are then flushed with water and discharged from the discharge port 8.

[0029] Working principle: by turning on the switches of the lighting lamp 11, the bidirectional stepping motor 12, the heat exchanger 14, and the micro motor 16 from the external controller, when the elevator is running, the lighting lamp 11 is illuminated, and the micro motor 16 drives the main bevel gear 37 to rotate, so that the two meshing second bevel gears 36 rotate in the opposite direction to the main bevel gear 37, and when the first bevel gear 35 and the second bevel gear 36 rotate, they respectively drive the two rotating rods 24 to rotate, and further drive the fan blades 23 to rotate, and the wind guides the air through the air guide blades 25 to circulate out. The air in the air hood 18 is discharged through the first shunt net 9, and the air in the circulating air intake hood 19 enters through the second shunt net 10. Since there are many air pollutants in the elevator shaft, it is necessary to clean it in time, and the exhaust dust in the circulating air outlet hood 18 is less and can be cleaned uniformly when personnel perform maintenance. Then, when the bidirectional stepping motor 12 is running, the output shaft on one side drives the reciprocating screw 13 to rotate. After the reciprocating screw 13 rotates, it can drive the threaded sleeve block 31 to move horizontally, further drive the installation strip plate 33 to move, and drive the sleeve ring 32 to move on the limit slide. The rod 20 slides smoothly outside, and the movement of the installation strip 33 drives the brush 41 to move horizontally to clean the dust and debris adsorbed and filtered on the circulating air outlet hood 18 and the circulating air inlet hood 19. At the same time, under the drive of the bidirectional stepping motor 12, the output shaft on one side drives the first pulley 21 to rotate, thereby driving the second pulley 39 to rotate through the belt, so that the rotation of the rotating shaft 38 drives the reciprocating screw 40 to rotate, so that the traction rod 42 is driven to slide outside the reciprocating screw 40, and the main bevel gear 37 is driven to slide on the through-mouth frame 29 during sliding, further driving the bracket 30 moves and pushes the top rod 28 to move. The movement of the top rod 28 drives the cleaning sleeve 26 to enter the circulating air intake hood 19 from the rotating rod 24 to clean the fan blades 23, thereby reducing the accumulation of dust in the circulating air intake hood 19. Before the elevator runs again, the two-way stepper motor 12 is turned off, and the cold and hot air are transported from the delivery pipe 15 to the circulating air intake hood 19 through the heat exchanger 14 according to the season. When the elevator is maintained, the cover plate 4 is opened to take out the large debris, and the small particles and dust are pushed into the sewage tank 22, which are flushed with water and discharged from the discharge port 8 to the outside of the elevator.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An elevator with air circulation and purification function, characterized in that: The invention comprises an elevator car (1), wherein a gas circulation frame (3) and a side car frame (7) are arranged at the upper end of the elevator car (1), a car door (2) is installed at the front end of the elevator car (1), a cleaning unit (551) is movably installed inside the side car frame (7), the cleaning unit (551) comprises a cleaning sleeve (26) movably arranged at one end of the side car frame (7), the outer surface of the cleaning sleeve (26) is fixedly connected to two push rods (28), and the corresponding ends of the two push rods (28) are commonly fixedly connected to a bracket (30), a temperature control unit (552) is installed on the inner side of the gas circulation frame (3), a driving unit (553) is fixedly installed on the inner side of the side car frame (7), and the gas circulation frame (3) is fixedly connected to the outer surface of the cleaning sleeve (26). A limit slide bar (20) is fixedly connected to the inside in a transverse direction, a sleeve is slidably mounted on the outer surface of the limit slide bar (20), a mounting strip (33) is fixedly connected to the outer surface of the sleeve (32), a brush (41) is mounted on the bottom end of the mounting strip (33), a circulating air outlet hood (18) and a circulating air inlet hood (19) are symmetrically arranged on the inner side of the gas circulation frame (3), a linkage unit (554) is installed inside the gas circulation frame (3) and between the circulating air outlet hood (18) and the circulating air inlet hood (19), a positioning opening (34) corresponding to the cleaning sleeve (26) is opened on one side of the circulating air inlet hood (19), and a rotating shaft (38) is rotatably mounted on the inner side of the side compartment frame (7).

2. The elevator with air circulation and purification function according to claim 1, characterized in that: The upper end of the gas circulation frame (3) is rotatably connected to a cover plate (4), the upper end of the gas circulation frame (3) is provided with two ventilation mesh plates (5), and the upper end of the side compartment frame (7) is provided with a side mesh plate (6).

3. The elevator with air circulation and purification function according to claim 1, characterized in that: The outer wall of the gas circulation frame (3) is provided with a discharge port (8), and the inner side of the gas circulation frame (3) is provided with a sewage discharge groove (22), and the sewage discharge groove (22) is connected to the discharge port (8).

4. The elevator with air circulation and purification function according to claim 1, characterized in that: The temperature control unit (552) comprises a heat exchanger (14) fixedly mounted on the inner side of the gas circulation frame (3); one end of the heat exchanger (14) is connected to two delivery pipes (15); the two delivery pipes (15) are respectively connected to a circulation gas outlet hood (18) or a circulation gas inlet hood (19).

5. The elevator with air circulation and purification function according to claim 1, characterized in that: The driving unit (553) comprises a bidirectional stepping motor (12) fixedly mounted on the inner wall of the side frame (7); an output shaft on one side of the bidirectional stepping motor (12) is fixedly connected to a reciprocating screw (13); a threaded sleeve block (31) is threadedly sleeved on the outer surface of the reciprocating screw (13); the threaded sleeve block (31) is fixedly connected to the mounting strip (33); and a first pulley (21) is fixedly sleeved on the fixed output end on the other side of the bidirectional stepping motor (12).

6. The elevator with air circulation and purification function according to claim 1, characterized in that: Rotating rods (24) are inserted and rotatably installed on the inner sides of the circulating air outlet hood (18) and the circulating air inlet hood (19), and the two rotating rods (24) are respectively located inside the circulating air outlet hood (18) or the circulating air inlet hood (19) and are both annularly and equidistantly installed with fan blades (23).

7. The elevator with air circulation and purification function according to claim 1, characterized in that: The circulating air outlet hood (18) and the circulating air inlet hood (19) are both provided with air induction plates (25) inside, the upper and lower sides of the inner side of the circulating air outlet hood (18) are both provided with first flow diversion nets (9), and the upper and lower sides of the inner side of the circulating air inlet hood (19) are both provided with second flow diversion nets (10), and the two air induction plates (25) are used in conjunction with the first flow diversion net (9) or the second flow diversion net (10), respectively.

8. The elevator with air circulation and purification function according to claim 1, characterized in that: The linkage unit (554) comprises a mounting tube (17) fixedly connected between a circulating air outlet hood (18) and a circulating air inlet hood (19); a micro motor (16) is fixedly mounted on the upper end of the mounting tube (17); an output shaft of the micro motor (16) passes through the mounting tube (17) and is fixedly sleeved with a main bevel gear (37); and a lighting lamp (11) is mounted on the inner side of the mounting tube (17).

9. The elevator with air circulation and purification function according to claim 6, characterized in that: One end of one of the rotating rods (24) passes through the circulating air outlet cover (18) and enters the inner side of the mounting tube (17) and is fixedly sleeved with a first bevel gear (35), and one end of the other rotating rod (24) passes through the circulating air inlet cover (19) and enters the inner side of the mounting tube (17) and is fixedly sleeved with a second bevel gear (36), and the first bevel gear (35) or the second bevel gear (36) is meshed with the main bevel gear (37).

10. An elevator with air circulation and purification function according to claim 5 or 6, characterized in that: The rotating shaft (38) is located on the inner side of the side compartment frame (7) and is fixedly sleeved with a reciprocating screw (40); a traction rod (42) is slidably arranged on the outer surface of the reciprocating screw (40); one end of the bracket (30) is fixedly connected to a movable frame (27); the traction rod (42) is fixedly inserted into the movable frame (27); the rotating shaft (38) is located on the inner side of the side compartment frame (7) and is fixedly sleeved with a second belt pulley (39); the first belt pulley (21) and the second belt pulley (39) are connected via a belt; the inner wall of the side compartment frame (7) is fixedly connected with a through-hole frame (29); the movable frame (27) and the through-hole frame (29) are slidably arranged.

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