Elevator car ventilation device

Abstract

The utility model discloses an elevator car ventilation device, which belongs to the technical field of elevator cars and comprises a car body, a filter box is arranged at the bottom of the car body, a box body is fixedly connected to the bottom of the filter box, a motor is fixedly mounted in an inner cavity of the box body, a main rotating rod is fixedly connected to the output end of the motor, and a main gear is fixedly connected to the surface of the main rotating rod. The motor drives the main rotating rod to rotate, the main rotating rod drives the main gear and the brush plate to rotate, the main gear drives the auxiliary gear to rotate, the auxiliary gear drives the auxiliary rotating rod to rotate, the auxiliary rotating rod drives the fan blades to rotate, air flow is generated in the rotating process of the fan blades, and the flow speed of air is increased; therefore, external air can be conveyed into the lift car body, air convection in the lift car is enhanced, the ventilation effect of the lift car is improved, meanwhile, the head of a passenger is prevented from being directly blown by wind, and the riding comfort of the passenger is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of elevator cars, and in particular relates to a ventilation device for an elevator car. Background Art

[0002] The elevator car is a box-shaped space used by the elevator to carry and transport people and materials. The car is generally composed of main components such as the car bottom, car walls, car roof and car doors. It is the car body component used by the elevator to carry passengers or cargo and other loads. Because the car is a relatively sealed box structure and there are many people riding in it, the car needs to be ventilated to ensure smooth breathing of the passengers.

[0003] During operation, the existing ventilation device drives the exhaust fan to rotate through a driving structure, thereby replacing the air inside and outside the car to achieve the purpose of ventilation. Since there is a large amount of dust in the air in the outside elevator shaft, the unfiltered gas directly input into the car will affect the health of the passengers. Secondly, the filter is very likely to be blocked during long-term use, affecting the subsequent ventilation effect. Therefore, we provide an elevator car ventilation device. Utility Model Content

[0004] The utility model aims to provide an elevator car ventilation device, which solves the problems raised in the above-mentioned background technology by using a motor, a main rotating rod, a main gear, a secondary rotating rod, a secondary gear, a fan blade, and a brush plate in combination.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an elevator car ventilation device, comprising a car body, a filter box is provided at the bottom of the car body, the bottom of the filter box is fixedly connected to the box body, a motor is fixedly installed in the inner cavity of the box body, a main rotating rod is fixedly connected to the output end of the motor, a main gear is fixedly connected to the surface of the main rotating rod, a sub-gear is meshed on the surface of the main gear, a sub-gear is fixedly connected to the inner wall of the sub-gear, a fan blade is fixedly connected to the top of the sub-rotating rod, and a fine filter plate is fixedly connected to one side of the top of the main rotating rod surface.

[0006] By adopting the above scheme, the main rotating rod is driven to rotate by the motor, the main rotating rod drives the main gear and the brush plate to rotate, the main gear drives the sub-gear to rotate, the sub-gear drives the sub-rotating rod to rotate, and the sub-rotating rod drives the fan blades to rotate. The fan blades generate airflow during the rotation and accelerate the air flow rate, so that external air can be transported to the interior of the car body, thereby enhancing the air convection in the car, improving the ventilation effect of the car body, and preventing the wind from blowing directly on the passenger's head, thereby improving the passenger's riding comfort. Then, during the rotation of the brush plate, the dust on the fine filter screen can be cleaned to prevent the fine filter screen from being blocked during long-term use, thereby requiring frequent replacement of the fine filter screen.

[0007] As a preferred embodiment of the elevator car ventilation device, a plurality of ventilation holes are provided at the connection between the filter box and the car body, and ventilation openings are provided at the tops of both sides of the car body.

[0008] By adopting the above scheme, through the provision of a plurality of ventilation holes, the air flow can be evenly transported to the interior of the car body, and the air is output through the ventilation holes on the car body, thereby achieving the purpose of air replacement.

[0009] As a preferred embodiment of the elevator car ventilation device, a concave mounting plate is fixedly connected to the bottom of the motor, and a shock absorber is fixedly connected to the bottom of the mounting plate.

[0010] By adopting the above scheme, the vibration amplitude of the motor when working is reduced by setting the shock absorber, so as to achieve the purpose of vibration reduction and noise reduction.

[0011] As a preferred embodiment of an elevator car ventilation device, a connecting plate is fixedly connected to the front surface of the filter box, a fine filter mesh plate is fixedly connected to the back side of the connecting plate and located in the inner cavity of the filter box, and clamping plates are fixedly connected on both sides of the bottom of the connecting plate, and the clamping plate is fixedly connected to the filter box by fastening bolts.

[0012] By adopting the above solution, the connection plate is fixed and limited by setting the fastening bolts, so as to prevent the connection plate from driving the fine filter plate to slide out from a predetermined position when working.

[0013] As a preferred embodiment of an elevator car ventilation device, air inlets are provided on both sides of the box body, and an activated carbon filter is provided in the inner cavity of the air inlet.

[0014] By adopting the above scheme, the odor in the external air is adsorbed through the setting of the activated carbon filter, so as to achieve the purpose of preliminary air filtering.

[0015] As a preferred embodiment of an elevator car ventilation device, the front and rear ends of the tops on both sides of the filter box are fixedly connected with L-shaped mounting plates, and the L-shaped mounting plates are fixedly connected to the car body by mounting bolts.

[0016] By adopting the above scheme, by setting the mounting bolts and using them in conjunction with external tools, the device can be quickly disassembled and assembled at the bottom of the car body, greatly improving the efficiency of disassembly and assembly.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The utility model drives the main rotating rod to rotate through a motor, drives the main gear and the brush plate to rotate through the main rotating rod, drives the sub-gear to rotate through the main gear, drives the sub-rotating rod to rotate through the sub-gear, and drives the fan blades to rotate through the sub-rotating rod. The fan blades generate airflow during the rotation process and accelerate the air flow rate, so that external air can be transported to the interior of the car body, thereby strengthening the air convection in the car, improving the ventilation effect of the car, and preventing wind from blowing directly on the passenger's head, thereby improving the passenger's riding comfort.

[0019] 2. The utility model drives the brush plate to rotate through the main rotating rod. Through the characteristics of the brush plate, the dust on the fine filter screen can be swept off to achieve the purpose of self-cleaning and prevent the fine filter screen from being blocked during long-term use, thereby requiring frequent replacement of the fine filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 This is a cross-sectional view of the filter box and the box body of the utility model;

[0022] Figure 3 It is an enlarged view of point A of the present utility model.

[0023] In the figure: 1. car body; 2. filter box; 3. box body; 4. motor; 5. main rotating rod; 6. main gear; 7. auxiliary rotating rod; 8. auxiliary gear; 9. fan blade; 10. brush plate; 11. fine filter screen plate; 12. connecting plate; 13. clamping plate; 14. fastening bolts. DETAILED DESCRIPTION

[0024] See also Figure 1-3 An elevator car ventilation device comprises a car body 1, a filter box 2 is provided at the bottom of the car body 1, Figure 2As shown, a plurality of ventilation holes are provided at the connection between the filter box 2 and the car body 1, and ventilation holes are provided on the tops of both sides of the car body 1. Through the arrangement of the plurality of ventilation holes, the air flow can be evenly transported to the interior of the car body 1, and the air is output through the ventilation holes on the car body 1, thereby achieving the purpose of air replacement. The bottom of the filter box 2 is fixedly connected to the box body 3, the inner cavity of the box body 3 is fixedly installed with a motor 4, the output end of the motor 4 is fixedly connected to a main rotating rod 5, the surface of the main rotating rod 5 is fixedly connected to a main gear 6, the surface of the main gear 6 is meshed with a sub-gear 8, the inner wall of the sub-gear 8 is fixedly connected to a sub-rotating rod 7, the top of the sub-rotating rod 7 is fixedly connected to a fan blade 9, and one side of the top of the surface of the main rotating rod 5 is fixedly connected to a fine filter screen plate 11, see Figure 3 As shown, a connecting plate 12 is fixedly connected to the front surface of the filter box 2, a fine filter screen plate 11 is fixedly connected to the back of the connecting plate 12 and located in the inner cavity of the filter box 2, and clamping plates 13 are fixedly connected to both sides of the bottom of the connecting plate 12. The clamping plate 13 and the filter box 2 are fixedly connected by fastening bolts 14. The fastening bolts 14 are set to fix and limit the connecting plate 12 to prevent the connecting plate 12 from driving the fine filter screen plate 11 to slide out of a predetermined position when working, and the main rotating rod 5 is driven to rotate by the motor 4, the main gear 6 and the brush plate 10 are driven to rotate by the main rotating rod 5, and the auxiliary gear 8 is driven to rotate by the main gear 6. The auxiliary gear 8 drives the auxiliary rotating rod 7 to rotate, and the auxiliary rotating rod 7 drives the fan blade 9 to rotate. The fan blade 9 generates airflow during the rotation and accelerates the air flow rate, so that the external air can be transported to the interior of the car body 1, thereby strengthening the air convection in the car, improving the ventilation effect of the car body 1, and preventing the wind from blowing directly on the passenger's head, thereby improving the passenger's riding comfort. Then, the brush plate 10 can clean the dust on the fine filter plate 11 during the rotation process to prevent the fine filter plate 11 from being blocked during long-term use, thereby requiring frequent replacement of the fine filter plate 11.

[0025] See Figure 2 As shown, the bottom of the motor 4 is fixedly connected with a concave mounting plate, and the bottom of the mounting plate is fixedly connected with a shock absorber. By setting the shock absorber, the amplitude of the vibration of the motor 4 during operation is reduced to achieve the purpose of vibration reduction and noise reduction. Figure 1 As shown, both sides of the box body 3 are provided with air inlets, and the inner cavity of the air inlet is provided with an activated carbon filter. The activated carbon filter is provided to adsorb the odor in the external air to achieve the purpose of preliminary air filtration. Figure 1 As shown, the front and rear ends of the tops on both sides of the filter box 2 are fixedly connected with L-shaped mounting plates, and the L-shaped mounting plates are fixedly connected to the car body 1 by mounting bolts. By setting the mounting bolts and using external tools, the device can be quickly disassembled and assembled at the bottom of the car body 1, which greatly improves the efficiency of disassembly and assembly.

[0026] When in use, first place the filter box 2 at the bottom of the car body 1, and use an external tool to turn the mounting bolts to quickly install the filter box 2 at the bottom of the car body 1. When ventilation is needed, the motor 4 drives the main rotating rod 5 to rotate, and the main rotating rod 5 drives the main gear 6 and the brush plate 10 to rotate, and the main gear 6 drives the sub-gear 8 to rotate, and the sub-rotating rod 7 drives the fan blade 9 to rotate through the sub-gear 8. The fan blade 9 generates airflow during rotation and accelerates the flow rate of air. The external air is transported to the inner cavity of the box body 3 through the vent, and the odor in the external air is adsorbed by the activated carbon filter to achieve the purpose of preliminary filtering of the air. The air is then transported to the inner cavity of the filter box 2, and the dust in the air is filtered through the fine filter plate 11, which further improves the cleanliness of the air. The filtered air is evenly transported to the interior of the car body 1 through a number of ventilation holes, which strengthens the air convection in the car body 1, improves the ventilation effect of the car, and allows the air to be output through the vents on the car body 1, while preventing the wind from blowing directly on the passenger's head, thereby improving the passenger's riding comfort. Then, during the rotation of the brush plate 10, the dust on the fine filter plate 11 can be cleaned to prevent the fine filter plate 11 from being blocked during long-term use, thereby requiring frequent replacement of the fine filter plate 11.

Claims

1. An elevator car ventilation device, characterized in that: The invention comprises a car body (1), wherein a filter box (2) is provided at the bottom of the car body (1), the bottom of the filter box (2) is fixedly connected to a box body (3), the inner cavity of the box body (3) is fixedly installed with a motor (4), the output end of the motor (4) is fixedly connected to a main rotating rod (5), the surface of the main rotating rod (5) is fixedly connected to a main gear (6), the surface of the main gear (6) is meshed with a sub-gear (8), the inner wall of the sub-gear (8) is fixedly connected to a sub-rotating rod (7), the top of the sub-rotating rod (7) is fixedly connected to a fan blade (9), and one side of the top of the surface of the main rotating rod (5) is fixedly connected to a fine filter screen (11).

2. An elevator car ventilation device according to claim 1, characterized in that: A plurality of ventilation holes are provided at the connection between the filter box (2) and the car body (1), and ventilation openings are provided at the tops of both sides of the car body (1).

3. An elevator car ventilation device according to claim 1, characterized in that: A concave mounting plate is fixedly connected to the bottom of the motor (4), and a shock absorber is fixedly connected to the bottom of the mounting plate.

4. An elevator car ventilation device according to claim 1, characterized in that: A connecting plate (12) is fixedly connected to the front surface of the filter box (2), a fine filter screen plate (11) is fixedly connected to the back surface of the connecting plate (12) and located in the inner cavity of the filter box (2), and clamping plates (13) are fixedly connected to both sides of the bottom of the connecting plate (12), and the clamping plate (13) and the filter box (2) are fixedly connected via fastening bolts (14).

5. The elevator car ventilation device according to claim 1, characterized in that: Air inlets are provided on both sides of the box body (3), and an activated carbon filter is provided in the inner cavity of the air inlet.

6. An elevator car ventilation device according to claim 1, characterized in that: The front and rear ends of the tops of both sides of the filter box (2) are fixedly connected with L-shaped mounting plates, and the L-shaped mounting plates are fixedly connected to the car body (1) via mounting bolts.

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