Elevator car ventilation device

Abstract

According to the elevator car ventilation device, when a car body runs in an elevator shaft, a rolling wheel abuts against a rail of the shaft, so that the rolling wheel rotates, the rolling wheel rotates to drive a first rotating shaft to rotate, then under the action of a first transmission mechanism, a second rotating shaft is driven to rotate, and finally an impeller is driven to rotate; according to the elevator running ventilation structure, the impeller can be driven to rotate through running of the elevator, air supply and exhaust operation can be conducted in the running process of the elevator without using electric power, the use performance of an elevator car is effectively improved, the ventilation stability is effectively guaranteed, the energy-saving purpose is achieved, and the elevator running ventilation structure is simple in design and convenient to use. Usage is convenient and ventilation is stable and reliable.

Description

Technical Field

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

[0002] With the progress of society, elevators have gradually become an indispensable tool for people. In order to make passengers more comfortable, current vertical lift elevators usually install electric fans inside the car, which consume electricity and are always in the starting state when the elevator is not running, resulting in a waste of electricity. Therefore, in view of the current situation, it is necessary to improve it. Summary of the invention

[0003] The present invention aims to solve one of the problems existing in the prior art to at least a certain extent. To this end, the present invention provides an elevator car ventilation device.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A ventilation device for an elevator car comprises a car body and a car frame, and mechanical ventilation devices are arranged on the left and right sides of the upper end of the car body. The mechanical ventilation device comprises a roller bracket arranged on the car frame, and a first rotating shaft arranged along the front-back direction is rotatably mounted on the roller bracket, and a roller is arranged on the first rotating shaft. A track is arranged in the elevator shaft, and the roller can roll against the track. An impeller housing is arranged on the upper end of the car body, and an impeller is installed in the impeller housing. The impeller is provided with a second rotating shaft, and the second rotating shaft extends upward to the outside of the impeller housing. A first transmission mechanism is connected between the first rotating shaft and the second rotating shaft, and the first transmission mechanism can drive the second rotating shaft to rotate by rotating the first rotating shaft.

[0006] In some embodiments, the first transmission mechanism includes a first supporting frame body provided on the car body, a first transmission shaft and a second transmission shaft are rotatably mounted on the first supporting frame body, a first transmission bevel gear A is provided at one end of the first transmission shaft, and a first transmission bevel gear B is provided at the other end, a second transmission bevel gear A is provided at one end of the second transmission shaft, and a second transmission bevel gear B is provided at the other end, the first transmission bevel gear B is meshed with the second transmission bevel gear A, a first rotating shaft bevel gear A that can mesh with the first transmission bevel gear A is provided at one end of the first rotating shaft, and a second rotating shaft bevel gear that can mesh with the second transmission bevel gear B is provided at the upper end of the second rotating shaft.

[0007] In some embodiments, the roller bracket includes a transverse plate, on which a first rotating shaft frame and a second rotating shaft frame are arranged, the first rotating shaft is rotatably mounted on the first rotating shaft frame, and the first transmission shaft is rotatably mounted on the first supporting frame and the second rotating shaft frame.

[0008] In some embodiments, the first transmission shaft includes a first shaft body and a second shaft body, the first shaft body is rotatably mounted on the second rotating shaft frame, the first transmission bevel gear A is arranged at one end of the first shaft body, and a first guide flange is arranged at the other end of the first shaft body, the second shaft body is rotatably mounted on the first supporting frame body, the first transmission bevel gear B is arranged at one end of the second shaft body, and a first guide cylinder body is arranged at the other end of the second shaft body, a first guide groove penetrates the outer wall of the first guide cylinder body, one end of the first shaft body is movably retractable in the first guide cylinder body, and the first guide flange is movably arranged in the first guide groove.

[0009] In some embodiments, a slide groove is provided on the car frame along the left and right directions, the cross plate is slidably arranged in the slide groove, there are guide columns on the front and back of the inner side of the cross plate, the guide columns are movably inserted on the car frame, a spring is provided on the guide column sleeve, one end of the spring rests on the car frame, and the other end rests on the cross plate.

[0010] In some embodiments, a plurality of swing shafts are evenly spaced along the front-to-back direction at the lower end of the impeller housing, an air guide plate is provided on the swing shaft, and a second transmission mechanism is connected between the swing shaft and the first rotating shaft. The second transmission mechanism can drive the swing shaft to rotate reciprocatingly through the rotation of the first rotating shaft, thereby driving the air guide plate to swing reciprocatingly.

[0011] In some embodiments, the second transmission mechanism includes a second supporting frame body provided on the car body, a third transmission shaft is rotatably mounted on the second supporting frame body, a third transmission bevel gear is provided at one end of the third transmission shaft, and the other end is connected to a reduction gear box, a turntable is provided on the output shaft of the reduction gear box, a first rotating shaft bevel gear B that can mesh with the third transmission bevel gear is provided at one end of the first rotating shaft, a transmission gear is provided at the outer end of each of the swinging shafts, a rack that can mesh with the transmission gear is provided on the outer side of the impeller housing and slides back and forth, a connecting rod is hinged at one end of the turntable, and the other end of the connecting rod is hinged to one side of the rack.

[0012] In some embodiments, the third transmission shaft includes a third shaft body and a fourth shaft body, a third rotating shaft frame is arranged on the horizontal plate, the third shaft body is rotatably mounted on the third rotating shaft frame, the third transmission bevel gear is arranged at one end of the third shaft body, and a second guide flange is arranged at the other end of the third shaft body, the fourth shaft body is rotatably mounted on the second supporting frame body, and a second guide cylinder body is arranged at one end, and the other end is connected to the reduction box, a second guide groove penetrates the outer wall of the second guide cylinder body, one end of the third shaft body is movably retractable in the second guide cylinder body, and the second guide flange is movably arranged in the second guide groove.

[0013] In some embodiments, an upper mesh cover is provided at the upper end of the impeller housing, and a lower mesh cover is provided on the impeller housing and below the impeller.

[0014] In some embodiments, one of the impellers on the left and right sides is a forward-rotating impeller, and the other is a reverse-rotating impeller.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: when the car body is running in the elevator shaft, the roller abuts against the track of the shaft, so that the roller rotates, and the rotation of the roller drives the first rotating shaft to rotate, and then through the action of the first transmission mechanism, the second rotating shaft is also driven to rotate, and finally the impeller is driven to rotate, and then the rotation of the impeller can be driven by the operation of the elevator. Without using electricity, air supply and exhaust operations can be performed during the operation of the elevator, which effectively improves the performance of the elevator car, and effectively ensures the stability of ventilation and achieves the purpose of energy saving. In addition, the ventilation structure of the elevator operation is simple in design, easy to use, and the ventilation is stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the front side of the car body of the present invention;

[0017] Figure 2 It is a three-dimensional schematic diagram of the back side of the car body of the present invention;

[0018] Figure 3 For the present invention Figure 1 A magnified schematic diagram of point A;

[0019] Figure 4 For the present invention Figure 2 An enlarged schematic diagram of point B;

[0020] Figure 5 It is a three-dimensional schematic diagram of the roller bracket of the present invention when it is installed on the car frame;

[0021] Figure 6 It is a top view schematic diagram of the roller bracket of the present invention when it is installed on the car frame;

[0022] Figure 7 It is a three-dimensional schematic diagram of the impeller of the present invention when it is installed on the impeller housing;

[0023] Figure 8 It is a cross-sectional schematic diagram of the impeller of the present invention when it is installed in the impeller housing. DETAILED DESCRIPTION

[0024] The following specific implementation contents provide a variety of different embodiments or examples for implementing the present invention. Of course, these are only embodiments or examples and do not wish to be restrictive. In addition, repeated reference numerals may be used in different embodiments, such as repeated numbers and / or letters. These repetitions are for the purpose of simply and clearly describing the present invention and do not represent a specific relationship between the different embodiments and / or structures discussed.

[0025] like Figure 1-Figure 8 An elevator car ventilation device shown in the figure includes a car body 1 and a car frame 2, and mechanical ventilation devices are arranged on the left and right sides of the upper end of the car body 1, and the mechanical ventilation device includes a roller bracket 3 arranged on the car frame 2, and a first rotating shaft 4 arranged along the front-to-back direction is rotatably mounted on the roller bracket 3, and a roller 5 is arranged on the first rotating shaft 4. A track is arranged in the elevator shaft, and the roller 5 can roll against the track. An impeller housing 6 is arranged at the upper end of the car body 1, and an impeller 7 is installed in the impeller housing 6. The impeller 7 is provided with a second rotating shaft 8, and the second rotating shaft 8 extends upward to the outside of the impeller housing 6. A first transmission mechanism is connected between the first rotating shaft 4 and the second rotating shaft 8, and the first transmission mechanism can drive the second rotating shaft 8 to rotate through the rotation of the first rotating shaft 4.

[0026] According to the above structure, when the car body 1 is running in the elevator shaft, the roller 5 abuts against the track of the shaft, so that the roller 5 rotates, and the rotation of the roller 5 drives the first shaft 4 to rotate, and then through the action of the first transmission mechanism, the second shaft 8 is also driven to rotate, and finally the impeller 7 is driven to rotate, and then the rotation of the impeller 7 can be driven by the operation of the elevator. Without using electricity, the air supply and exhaust operations can be performed during the operation of the elevator, which effectively improves the performance of the elevator car, and effectively ensures the stability of ventilation and achieves the purpose of energy saving. In addition, the ventilation structure of the elevator operation is simple in design, easy to use, and the ventilation is stable and reliable.

[0027] See also Figure 1 , Figure 3 , Figure 5 , Figure 6As shown, the first transmission mechanism includes a first supporting frame 21 arranged on the car body 1, and a first transmission shaft 22 and a second transmission shaft 23 are rotatably mounted on the first supporting frame 21, a first transmission bevel gear A24 is arranged at one end of the first transmission shaft 22, and a first transmission bevel gear B25 is arranged at the other end, a second transmission bevel gear A26 is arranged at one end of the second transmission shaft 23, and a second transmission bevel gear B27 is arranged at the other end, the first transmission bevel gear B25 is meshed with the second transmission bevel gear A26, a first rotating shaft bevel gear A28 that can mesh with the first transmission bevel gear A24 is arranged at one end of the first rotating shaft 4, and a second rotating shaft bevel gear 29 that can mesh with the second transmission bevel gear B27 is arranged at the upper end of the second rotating shaft 8.

[0028] The working principle of the first transmission mechanism is as follows: when the car body 1 runs in the elevator shaft, the roller 5 abuts against the track of the shaft, so that the roller 5 rotates, and the rotation of the roller 5 drives the first rotating shaft 4 to rotate, and then through the first rotating shaft bevel gear A28, the first transmission bevel gear A24, the first transmission shaft 22, the first transmission bevel gear B25, the second transmission bevel gear A26, the second transmission bevel gear B27, the second rotating shaft bevel gear 29, and the second rotating shaft 8 are sequentially transmitted, thereby driving the impeller 7 to rotate to achieve blowing or exhausting operations.

[0029] See also Figure 5 , Figure 6 As shown, the roller bracket 3 includes a transverse plate 31, on which a first rotating shaft frame 33 and a second rotating shaft frame 34 are arranged, the first rotating shaft 4 is rotatably mounted on the first rotating shaft frame 33, and the first transmission shaft 22 is rotatably mounted on the first support frame 21 and the second rotating shaft frame 34.

[0030] A slide groove opening 51 arranged along the left and right direction is provided on the car frame 2, and the cross plate 31 is slidably arranged in the slide groove opening 51. There will be a guide column 52 on the front and back of the inner side of the cross plate 31. The guide column 52 is movably inserted on the car frame 2, and a spring 53 is sleeved on the guide column 52. One end of the spring 53 rests on the car frame 2, and the other end rests on the cross plate 31.

[0031] Therefore, by providing the spring 53 , the roller 5 can be kept against the track of the hoistway, ensuring that the roller 5 can rotate smoothly when the car body 1 is in operation.

[0032] Further, the first transmission shaft 22 includes a first shaft body 41 and a second shaft body 42, the first shaft body 41 is rotatably mounted on the second rotating shaft frame 34, the first transmission bevel gear A24 is arranged at one end of the first shaft body 41, and a first guide flange 43 is arranged at the other end of the first shaft body 41, the second shaft body 42 is rotatably mounted on the first supporting frame body 21, the first transmission bevel gear B25 is arranged at one end of the second shaft body 42, and a first guide cylinder body 44 is arranged at the other end of the second shaft body 42, a first guide groove 45 passes through the outer wall of the first guide cylinder body 44, one end of the first shaft body 41 is movably retracted in the first guide cylinder body 44, and the first guide flange 43 is movably arranged in the first guide groove 45.

[0033] By setting the first guide cylinder 44, the first guide groove 45 and the first guide flange 43, it can be ensured that the first shaft 41 can move along with the cross plate 31, so that the first transmission bevel gear A24 and the first rotating shaft bevel gear A28 are kept in meshing state, and at the same time, the first transmission bevel gear B25 and the second transmission bevel gear A26 are kept in meshing state.

[0034] See also Figure 4 , Figure 6 , Figure 7 , Figure 8 As shown, a plurality of swing shafts 61 are evenly spaced along the front-to-back direction at the lower end of the impeller housing 6, an air guide plate 62 is arranged on the swing shaft 61, and a second transmission mechanism is connected between the swing shaft 61 and the first rotating shaft 4. The second transmission mechanism can drive the swing shaft 61 to rotate reciprocatingly through the rotation of the first rotating shaft 4, thereby driving the air guide plate 62 to swing reciprocatingly.

[0035] Furthermore, the second transmission mechanism includes a second supporting frame 71 arranged on the car body 1, and a third transmission shaft 72 is rotatably installed on the second supporting frame 71, a third transmission bevel gear 73 is arranged at one end of the third transmission shaft 72, and the other end is connected to a reduction box 79, and a turntable 74 is arranged on the output shaft of the reduction box 79, and a first rotating shaft bevel gear B75 that can mesh with the third transmission bevel gear 73 is arranged at one end of the first rotating shaft 4, and a transmission gear 76 is arranged at the outer end of each of the swing shafts 61, and a rack 77 that can mesh with the transmission gear 76 is slid back and forth on the outer side of the impeller housing 6, and a connecting rod 78 is hinged at one end of the turntable 74, and the other end of the connecting rod 78 is hinged to one side of the rack 77.

[0036] The working principle of the second transmission mechanism is as follows: when the car body 1 is running in the elevator shaft, the roller 5 abuts against the track of the shaft, so that the roller 5 rotates, and the rotation of the roller 5 drives the first rotating shaft 4 to rotate, and then through the first rotating shaft bevel gear B75, the third transmission bevel gear 73, the third transmission shaft 72, the reduction box 79, the turntable 74, and the connecting rod 78, the rack 77 is driven to move back and forth, and the rack 77 is meshed with the transmission gear 76, so that the transmission gear 76 drives the swing shaft 61 to rotate back and forth, and then the air guide plate 62 on the swing shaft 61 swings back and forth, so that the air supply range of the impeller 7 is wider.

[0037] See also Figure 4 , Figure 6 As shown, the third transmission shaft 72 includes a third shaft body 81 and a fourth shaft body 82, and a third rotating shaft frame 83 is arranged on the cross plate 31. The third shaft body 81 is rotatably mounted on the third rotating shaft frame 83. The third transmission bevel gear 73 is arranged at one end of the third shaft body 81, and a second guide flange 84 is arranged at the other end of the third shaft body 81. The fourth shaft body 82 is rotatably mounted on the second supporting frame body 71, and a second guide cylinder 85 is arranged at one end, and the other end is connected to the reduction box 79. A second guide groove 86 runs through the outer wall of the second guide cylinder 85. One end of the third shaft body 81 can be movably retracted in the second guide cylinder 85, and the second guide flange 84 is movably arranged in the second guide groove 86.

[0038] By providing the second guide cylinder 85 , the second guide groove 86 and the second guide flange 84 , it is ensured that the third shaft 81 can move along with the transverse plate 31 , so that the first rotating shaft bevel gear B75 and the third transmission bevel gear 73 remain in meshing state.

[0039] See also Figure 8 As shown, an upper mesh cover 91 is provided at the upper end of the impeller housing 6 , and a lower mesh cover 92 is provided on the impeller housing 6 and below the impeller 7 .

[0040] In the present invention, one of the impellers 7 on the left and right sides is a forward-rotating impeller and the other is a reverse-rotating impeller, so that the impeller 7 on one side performs a blowing operation, while the impeller 7 on the other side performs an exhaust operation, which can greatly optimize the exhaust ventilation effect and improve the comfort inside the elevator car.

[0041] In conjunction with the drawings and the above, the basic principles and main features of the present invention and the advantages of the present invention are shown and described. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of 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 to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An elevator car ventilation device, comprising a car body (1) and a car frame (2), characterized in that: A mechanical ventilation device is provided on both left and right sides of the upper end of the car body (1), and the mechanical ventilation device comprises a roller bracket (3) provided on the car frame (2), a first rotating shaft (4) provided in a front-to-rear direction is rotatably mounted on the roller bracket (3), a roller (5) is provided on the first rotating shaft (4), a track is provided in the elevator shaft, and the roller (5) can roll against the track, an impeller housing (6) is provided at the upper end of the car body (1), an impeller (7) is installed in the impeller housing (6), and the impeller (7) is provided with a second rotating shaft (8), and the second rotating shaft (8) extends upward to the outside of the impeller housing (6), and a first transmission mechanism is connected between the first rotating shaft (4) and the second rotating shaft (8), and the first transmission mechanism can drive the second rotating shaft (8) to rotate by rotating the first rotating shaft (4).

2. An elevator car ventilation device according to claim 1, characterized in that: The first transmission mechanism comprises a first support frame (21) arranged on the car body (1), a first transmission shaft (22) and a second transmission shaft (23) being rotatably mounted on the first support frame (21), a first transmission bevel gear A (24) being arranged at one end of the first transmission shaft (22), and a first transmission bevel gear B (25) being arranged at the other end, a second transmission bevel gear A (26) being arranged at one end of the second transmission shaft (23), and a second transmission bevel gear B (27) being arranged at the other end, the first transmission bevel gear B (25) being meshed with the second transmission bevel gear A (26), a first rotating shaft bevel gear A (28) being meshed with the first transmission bevel gear A (24) being arranged at one end of the first rotating shaft (4), and a second rotating shaft bevel gear (29) being meshed with the second transmission bevel gear B (27) being arranged at the upper end of the second rotating shaft (8).

3. An elevator car ventilation device according to claim 2, characterized in that: The roller bracket (3) comprises a transverse plate (31), on which a first rotating shaft frame (33) and a second rotating shaft frame (34) are arranged, the first rotating shaft (4) is rotatably mounted on the first rotating shaft frame (33), and the first transmission shaft (22) is rotatably mounted on the first support frame body (21) and the second rotating shaft frame (34).

4. An elevator car ventilation device according to claim 3, characterized in that: The first transmission shaft (22) comprises a first shaft (41) and a second shaft (42); the first shaft (41) is rotatably mounted on the second rotating shaft frame (34); the first transmission bevel gear A (24) is arranged at one end of the first shaft (41); a first guide flange (43) is arranged at the other end of the first shaft (41); the second shaft (42) is rotatably mounted on the first supporting frame (21); the first transmission bevel gear B (25) is arranged at one end of the second shaft (42); a first guide cylinder (44) is arranged at the other end of the second shaft (42); a first guide groove (45) penetrates the outer wall of the first guide cylinder (44); one end of the first shaft (41) is movably retractable in the first guide cylinder (44); and the first guide flange (43) is movably arranged in the first guide groove (45).

5. An elevator car ventilation device according to claim 4, characterized in that: The car frame (2) is provided with a slide groove (51) arranged in the left-right direction, the transverse plate (31) is slidably arranged in the slide groove (51), and a guide column (52) is arranged at the front and rear of the inner side of the transverse plate (31), and the guide column (52) is movably inserted in the car frame (2). A spring (53) is sleeved on the guide column (52), and one end of the spring (53) is against the car frame (2), and the other end is against the transverse plate (31).

6. An elevator car ventilation device according to claim 4, characterized in that: A plurality of swing shafts (61) are evenly spaced at intervals along the front-to-back direction at the lower end of the impeller housing (6); an air guide plate (62) is arranged on the swing shaft (61); a second transmission mechanism is connected between the swing shaft (61) and the first rotating shaft (4); the second transmission mechanism can drive the swing shaft (61) to rotate reciprocatingly through the rotation of the first rotating shaft (4), thereby driving the air guide plate (62) to swing reciprocatingly.

7. An elevator car ventilation device according to claim 6, characterized in that: The second transmission mechanism comprises a second support frame (71) arranged on the car body (1), a third transmission shaft (72) being rotatably mounted on the second support frame (71), a third transmission bevel gear (73) being arranged at one end of the third transmission shaft (72), and a reduction box (79) being connected to the other end, a turntable (74) being arranged on the output shaft of the reduction box (79), a first rotating shaft bevel gear B (75) being meshed with the third transmission bevel gear (73) being arranged at one end of the first rotating shaft (4), a transmission gear (76) being arranged at the outer end of each of the swing shafts (61), a rack (77) being meshed with the transmission gear (76) being arranged to slide forward and backward on the outer side of the impeller housing (6), a connecting rod (78) being hinged at one end of the turntable (74), and the other end of the connecting rod (78) being hinged to one side of the rack (77).

8. An elevator car ventilation device according to claim 7, characterized in that: The third transmission shaft (72) includes a third shaft body (81) and a fourth shaft body (82). A third rotating shaft frame (83) is arranged on the transverse plate (31). The third shaft body (81) is rotatably mounted on the third rotating shaft frame (83). The third transmission bevel gear (73) is arranged on one end of the third shaft body (81). A second guide flange (84) is arranged on the other end of the third shaft body (81). The fourth shaft body (82) is rotatably mounted on the second support frame (71), and a second guide cylinder (85) is arranged on one end, and the other end is connected to the reduction box (79). A second guide groove (86) runs through the outer wall of the second guide cylinder (85). One end of the third shaft body (81) is movably retractable in the second guide cylinder (85), and the second guide flange (84) is movably arranged in the second guide groove (86).

9. An elevator car ventilation device according to claim 1, characterized in that: An upper mesh cover (91) is provided at the upper end of the impeller housing (6), and a lower mesh cover (92) is provided on the impeller housing (6) and below the impeller (7).

10. An elevator car ventilation device according to any one of claims 1 to 9, characterized in that: The impellers (7) on the left and right sides, one of which is a forward-rotating impeller, and the other is a reverse-rotating impeller.

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