A ventilated elevator car

Abstract

The application relates to the field of elevator ventilation technology and provides a ventilated elevator car which comprises a car body, an adjusting mechanism and a control mechanism; the upper part and the lower part of the car body are respectively provided with an air inlet and an air outlet, and fans are arranged in the air inlet and the air outlet; the adjusting mechanism comprises two sliding pieces which are slidingly connected to the car body and are provided with ventilation openings; one end of each sliding piece is connected with an elastic piece, the end of the elastic piece away from the sliding piece is connected to the car body, when the elastic piece is in the original length, the two sliding pieces cover the air inlet and the air outlet respectively; the end of the sliding piece away from the elastic piece is connected with a pull rope; the control mechanism is used for driving the pull rope to move and controlling the power-on and power-off of the fan. The application has the effect of good ventilation when the elevator is in the shutdown state and there is a person in the car.

Description

Technical Field

[0001] This application relates to the field of elevator ventilation technology, and in particular to a ventilated elevator car. Background Technology

[0002] Elevators generally include vertical elevators and escalators, with vertical elevators having a relatively enclosed car. Vertical elevator cars typically have ventilation openings, and the relative movement between the car and the air during operation allows the vertical elevator to meet certain ventilation requirements.

[0003] When an elevator is carrying passengers, if it stops operating due to a power failure, trapped passengers must wait for rescue. Because the relative speed between the elevator car and the outside air is relatively low at this time, ventilation inside the car is relatively poor. As the time of entrapment increases, trapped passengers are prone to anxiety, especially when there are many trapped passengers and the temperature inside the car is high. Therefore, there is a need for an elevator car with good ventilation when the elevator is stopped and passengers are inside. Summary of the Invention

[0004] In order to ensure good ventilation when the elevator is not in operation and there are people in the car, this application provides a ventilated elevator car.

[0005] The technical solution for a ventilated elevator car provided in this application is as follows:

[0006] A ventilated elevator car includes a car body, an adjustment mechanism, and a control mechanism. The car body has an air inlet at its upper part and an air outlet at its lower part, and a fan is installed in both the air inlet and the air outlet. The adjustment mechanism includes two sliding members slidably connected to the car body, each sliding member having a through-hole for ventilation. One end of each sliding member is connected to an elastic member, and the end of the elastic member away from the sliding member is connected to the car body. When the elastic member is at its original length, the two sliding members respectively cover the air inlet and the air outlet. A pull rope is connected to the end of each sliding member away from the elastic member. The control mechanism includes a rotating opening... The rotary switch is rotatably connected to the housing, which is connected to the car body. A power source is provided on the surface of the rotary switch facing the housing, and the housing has a conductive cavity for accommodating the power source. A first limiting part is provided on the side wall of the rotary switch, and a limiting groove is formed on the side wall of the housing. When the first limiting part 311 is inserted into the limiting groove, the power source is located in the conductive cavity and is electrically connected to the fan. The rotary switch is connected to the end of the pull rope away from the sliding member. When the first limiting part is inserted into the limiting groove, the ventilation openings of the two sliding members are respectively connected to the air inlet and the air outlet.

[0007] By adopting the above technical solution, when the elevator stops operating due to a malfunction and there are trapped personnel inside the car, the trapped personnel turn the rotary switch. After aligning the first limit part with the limit groove, they press the rotary switch. The rotary switch drives the power supply to move into the conductive cavity, energizing and rotating the fan. Simultaneously, as the rotary switch rotates, it causes the pull rope to wrap around it. Driven by the pull rope, the sliding component slides relative to the car body, connecting the air inlet and the ventilation outlet. Under the action of the fan, air outside the car body flows in through the air inlet, passes through the interior of the car body, and then flows out through the air outlet, thus achieving good ventilation when the elevator is stopped and there are people inside the car.

[0008] Optionally, the car body is provided with a guide member, the side wall of which is used for the pull rope to abut, and the tangent of the side wall of the guide member used for the pull rope to abut is along the height direction of the car body.

[0009] By adopting the above technical solution, the guide component guides the pull rope in a certain way, so that when the pull rope is wrapped around the rotary switch, the extension direction of the pull rope between the guide component and the sliding component is along the height direction of the car body and will not bend, thereby improving the sliding stability and force uniformity of the sliding component.

[0010] Optionally, the guide member is rotatably connected to the car body.

[0011] By adopting the above technical solution, the friction between the pull rope and the guide component is static friction when the pull rope moves, thereby reducing the wear of the pull rope and the guide component.

[0012] Optionally, the control mechanism further includes a rotating member, which is hinged to the car body at its hinge point; the rotating member has two intersecting abutment portions, the ends of which are used to abut against the surface of the power supply away from the rotary switch, and the distance between the end of the abutment portion and the hinge point is greater than the distance between the power supply and the hinge point; the rotating member has a force-receiving portion, the hinge point is located between the abutment portion and the force-receiving portion, and the end of the force-receiving portion away from the hinge point is connected to a wind vane, which has a projection in the vertical direction and extends to the outside of the car body.

[0013] By adopting the above technical solution, when the elevator is running, the gas outside the car body moves relative to the car body. Under the action of the airflow on the fan, the rotating part rotates, which in turn causes the contact part to rotate. The power supply moves away from the rotating part under the action of one of the contact parts and eventually comes out of the conductive cavity, causing the fan to lose power. At the same time, the first limiting part comes out of the limiting groove. Under the elastic force of the elastic element, the sliding part drives the pull rope to reset, and the pull rope drives the rotary switch to reset. Thus, the function of the sliding part automatically closing the air inlet and air outlet when the elevator is running is realized, so as to ensure the stable operation of the elevator.

[0014] Optionally, there are multiple force-bearing parts, which are arranged at intervals along the height direction of the car body, and the multiple wind signs corresponding to the multiple force-bearing parts are arranged alternately.

[0015] By adopting the above technical solution, on the one hand, the contact area between the wind vane and the airflow is increased, making it easier for the rotating parts to rotate under the action of the airflow; on the other hand, the rotating parts have more power arms when they are at multiple different tilt angles, and can rotate quickly when the elevator is moving up and down.

[0016] Optionally, the plurality of force-bearing parts are configured as two groups, the two groups of force-bearing parts are symmetrically arranged and the axis of symmetry extends along the height direction of the car body; along the height direction of the car body, the distance between the force-bearing part and the axis of symmetry decreases.

[0017] By adopting the above technical solution, on the one hand, the stability of the rotating parts is improved by symmetrically arranging multiple force-bearing parts, thereby ensuring the stability of elevator operation; on the other hand, after the airflow reaches one wind vane, part of the airflow moves along that wind vane to the next wind vane, thereby increasing the airflow in contact with the wind vane, and further making the rotating parts more likely to rotate under the action of wind force.

[0018] Optionally, the wind vane has at least four force-bearing surfaces, with an included angle between adjacent force-bearing surfaces, and at least one of the included angles facing upwards and at least one facing downwards.

[0019] By adopting the above technical solution, the airflow converges in the angled region between the upward and downward forces after flowing over the upward or downward force-bearing surface, thereby prolonging the contact time between the airflow and the wind vane, and further making the rotating parts more likely to rotate under the action of wind force.

[0020] Optionally, the receiving member has a second limiting portion connected to the cavity wall of the receiving cavity, and the second limiting portion is used for the abutting portion to abut.

[0021] By adopting the above technical solution, the second limiting part limits the abutting part. At this time, even if the wind sign continues to be subjected to force, the abutting part located in the conductive cavity will not continue to rotate in the direction of the other abutting part, so as to avoid the rotating part from rotating continuously until the abutting part is separated from the conductive cavity.

[0022] Optionally, the second limiting part is provided with a magnet at the position where the abutting part abuts, and the end of the abutting part is made of magnetic material.

[0023] By adopting the above technical solution, when the abutting part rotates into the second limiting part, the abutting part is fixed to the groove wall of the second limiting part under the magnetic attraction of the magnet. On the one hand, this reduces the risk of shaking after the abutting part collides with the groove wall of the second limiting part, and on the other hand, it reduces the risk of the rotating parts continuously rotating under the action of wind during elevator operation, thereby improving the stability of elevator operation.

[0024] Optionally, the receiving member is connected to a latex sheet, which is located between the rotating member and the power source, and the latex sheet is used to isolate the power source from the outside of the car body.

[0025] By adopting the above technical solution, the power supply is isolated from the outside of the car body using a latex sheet, reducing the risk of dust and other impurities accumulating on the surface of the power supply.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. By setting air inlets and air outlets at the top and bottom of the elevator car body respectively, and installing sliding parts and fans, the power supply and power off of the fan are controlled by a rotary switch, and the position of the sliding parts is controlled by the rotary switch to control whether the air inlets and air outlets are connected to the outside. When people are trapped in the elevator car, turning the rotary switch will start the fan and open the air inlets and air outlets, so that the elevator car body has good ventilation.

[0028] 2. By setting a rotating component, when the car body is running, the airflow drives the rotating component to rotate. When the rotating component rotates, it pushes the power supply out of the conductive cavity, thereby causing the first limiting part to disengage from the limiting groove, which in turn causes the fan to be de-energized and the sliding component to be reset, so as to ensure the stability of the elevator operation.

[0029] 3. By installing a latex sheet in the housing, the power supply is isolated from the outside of the car body, reducing the risk of external dust accumulating on the power supply. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this application.

[0031] Figure 2This is a schematic diagram illustrating the structure of the air outlet in Example 1.

[0032] Figure 3 This is a schematic diagram illustrating the structure of the sliding component in Embodiment 1.

[0033] Figure 4 This is a schematic diagram illustrating the structure of the control mechanism in Embodiment 1.

[0034] Figure 5 This is a schematic diagram showing the position of the guide component in Embodiment 1.

[0035] Figure 6 yes Figure 5 Enlarged diagram of part A.

[0036] Figure 7 This is a schematic diagram of the structure of Embodiment 2 of this application.

[0037] Figure 8 This is a structural schematic diagram used to illustrate the force-bearing part in Embodiment 2.

[0038] Figure 9 This is a structural schematic diagram of Embodiment 3 of this application.

[0039] Explanation of reference numerals in the attached drawings: 1. Car body; 11. Air inlet; 12. Air outlet; 13. Slide rail; 14. Mounting hole; 15. Filter plate; 16. Ventilation plate; 17. Fan; 2. Adjustment mechanism; 21. Sliding component; 211. Ventilation opening; 212. Sliding block; 22. Elastic component; 23. Pull rope; 3. Control mechanism; 31. Rotary switch; 311. First limiting part; 32. Receiving component; 321. Conductive cavity; 322. Limiting groove; 323. Sliding groove; 324. Winding groove; 325. Second limiting part; 326. Latex sheet; 33. Power supply; 34. Rotating component; 341. Abutment part; 342. Force-bearing part; 343. Air vent; 344. Force-bearing surface; 345. Roller; 4. Guide component. Detailed Implementation

[0040] The following is in conjunction with the appendix Figure 1-9 This application will be described in further detail.

[0041] This application discloses a ventilated elevator car.

[0042] Example 1

[0043] Reference Figure 1 , Figure 2 and Figure 3A ventilated elevator car includes a car body 1, an adjustment mechanism 2, and a control mechanism 3. The car body 1 has an air inlet 11 at its upper part and an air outlet 12 at its lower part. Fans 17 are installed in both the air inlet 11 and the air outlet 12. The adjustment mechanism 2 includes two sliding members 21, which are slidably connected to the car body 1. Each sliding member 21 has a through-hole 211. One end of each sliding member 21 is connected to an elastic member 22, and the end of the elastic member 22 away from the sliding member 21 is connected to the car body 1. When the elastic member 22 is in its original length, the two sliding members 21 respectively cover the air inlet 11 and the air outlet 12. A pull rope 23 is connected to the end of each sliding member 21 away from the elastic member 22. When the sliding member 21 is subjected to force by the pull rope 23, the sliding member 21 slides relative to the car body 1 along its own length direction, and at the same time, the ventilation opening 211 gradually moves and intersects with the air inlet 11 and the air outlet 12, so that the interior of the car body 1 is connected to the outside through the air inlet 11, the air outlet 12 and the ventilation opening 211; after the tension applied to the pull rope 23 is removed, the sliding member 21 is reset under the action of the elastic member 22, and the sliding member 21 covers the air inlet 11 and the air outlet 12 again.

[0044] Reference Figure 2 and Figure 4 The control mechanism 3 includes a rotary switch 31 and a receiving member 32. The rotary switch 31 is rotatably connected to the receiving member 32, and the receiving member 32 is connected to the car body 1. A power supply 33 is provided on the surface of the rotary switch 31 facing the receiving member 32, and the receiving member 32 is provided with a conductive cavity 321 for accommodating the power supply 33. A first limiting part 311 is provided on the side wall of the rotary switch 31, and a limiting groove 322 is provided on the side wall of the receiving member 32. When the first limiting part 311 is inserted into the limiting groove 322, the power supply 33 is located in the conductive cavity 321, and the power supply 33 is electrically connected to the fan 17. Rotate the rotary switch 31 on the receiving part 32 so that the first limiting part 311 is aligned with the limiting groove 322. Then press the rotary switch 31 so that the first limiting part 311 is inserted into the limiting groove 322. Rotate the switch 31 to move the power supply 33 into the conductive cavity 321, thereby completing the installation of the power supply 33. This allows the fan 17 to connect to the power supply 33 and work, so that airflow enters from the air inlet 11 and then flows out from the air outlet 12, achieving circulating ventilation.

[0045] Reference Figure 4 and Figure 5 The rotary switch 31 is connected to the end of the pull rope 23 away from the sliding member 21. When the first limiting part 311 is inserted into the limiting groove 322, the ventilation openings 211 of the two sliding members 21 are respectively connected to the air inlet 11 and the air outlet 12. As the rotary switch 31 rotates, it drives the pull rope 23 to rotate, causing the pull rope 23 to wrap around itself, thereby applying a pulling force to the pull rope 23, which in turn drives the sliding member 21 to move.

[0046] Specifically, multiple air inlets 11 and air outlets 12 are provided, and these multiple air inlets 11 and multiple air outlets 12 are arranged at intervals along the width direction of the car body 1. Simultaneously, two sets of air inlets 11 and two sets of air outlets 12 are provided, with the two sets of air inlets 11 symmetrically arranged about the central axis of the car body 1, and the two sets of air outlets 12 symmetrically arranged about the central axis of the car body 1. Correspondingly, two sets of adjusting mechanisms 2 and control mechanisms 3 are provided, thereby ensuring that the mass on the left and right sides of the car body 1 is relatively balanced, thus ensuring the stable operation of the elevator.

[0047] This application does not limit the shape of the air inlet 11, air outlet 12 and ventilation opening 211. In this embodiment, all three are circular holes to accommodate the fan 17.

[0048] Reference Figure 3 Sliding blocks 212 are provided on both sides of the sliding component 21. The car body 1 is provided with two slide rails 13 that are respectively adapted to the two sliding blocks 212. The slide rails 13 extend along the width direction of the car body 1, thereby realizing the sliding connection between the sliding component 21 and the car body 1 and the relatively stable sliding.

[0049] Reference Figure 3 Each sliding member 21 is provided with two elastic members 22. The elastic members 22 are located in the slide rail 13, and their two ends are fixedly connected to the ends of the slide rail 13 and the sliding block 212, respectively. The elastic members 22 can be springs or rubber bands.

[0050] Reference Figure 5 Two pull ropes 23 are provided. One end of each pull rope 23 is connected to two sliding blocks 212. The two pull ropes 23 are connected at the middle position. The connected ends are used to connect to the control mechanism 3 to improve the stability of the sliding component 21 relative to the car body 1.

[0051] The side wall of the car body 1 is provided with a mounting hole 14, and the receiving member 32 is installed in the mounting hole 14. In this embodiment, the conductive cavity 321 is a cylindrical structure, and the side wall of the conductive cavity 321 has a conductive area. When the first limiting part 311 is inserted into the limiting groove 322, the power supply 33 is located in the conductive cavity 321, and the two poles of the power supply 33 are connected to the fan 17 through the conductive area, thereby supplying power to the fan 17.

[0052] Reference Figure 4 The specific structure for the rotatable connection between the rotary switch 31 and the receiving member 32 is as follows: a sliding groove 323 is provided on the side wall of the conductive cavity 321 along its circumference, and the sliding groove 323 is used for the sliding of the first limiting part 311. A limiting groove 322 is provided on the side wall of the conductive cavity 321, and the end of the limiting groove 322 communicates with the conductive cavity 321, thereby using the limiting groove 322 to limit the first limiting part 311 and prevent the rotary switch 31 from falling off the receiving member 32.

[0053] The rotary switch 31 has a winding groove 324 along its circumference for accommodating the pull rope 23. The winding groove 324 is located between the first limiting part 311 and the power supply 33.

[0054] In this embodiment, the rotary switch 31 is connected to the power supply 33 by clamping. In other embodiments, it can also be fixed by adhesive bonding.

[0055] In this embodiment, both the power supply 33 and the conductive cavity 321 are cylindrical structures. In other embodiments, the power supply 33 can also be of other shapes, and the shape of the conductive cavity 321 can be adapted accordingly.

[0056] Furthermore, refer to Figure 5 and Figure 6 The car body 1 is provided with a guide member 4. The side wall of the guide member 4 is used for the pull rope 23 to abut against. The tangent of the side wall of the guide member 4 used for the pull rope 23 to abut against is along the height direction of the car body 1. This makes the part where the two pull ropes 23 merge collinear with the central axis of the sliding member 21, so as to improve the sliding stability and force uniformity of the sliding member 21.

[0057] Furthermore, the guide member 4 is rotatably connected to the car body 1. The axis of rotation of the guide member 4 relative to the car body 1 is parallel to the axis of rotation of the rotary switch 31 relative to the car body 1. This makes the friction between the pull rope 23 and the guide member 4 static friction, thereby reducing wear on the pull rope 23 and the guide member 4, and also reducing the risk of noise generated when they rub against each other. It is understood that in other embodiments, the guide member 4 may also be fixedly connected to the car body 1.

[0058] Furthermore, refer to Figure 1 The top of the car body 1 is provided with a filter plate 15 for filtering air, and the air inlet 11 is located between the filter plate 15 and the sliding member 21. At the same time, the fan 17 can be installed on the filter plate 15, and the wire between the fan 17 and the power supply 33 is fixedly arranged on the fixing plate and then connected from the side wall of the car body 1 to the conductive area of ​​the conductive cavity 321.

[0059] Furthermore, refer to Figure 2 A ventilation plate 16 is installed at the bottom of the car body 1. The ventilation plate 16 has multiple micro-holes, so that while the ventilation plate 16 covers the air outlet 12, the micro-holes form a connection between the interior of the car body 1 and the air outlet 12.

[0060] The implementation principle of Example 1 is as follows: When a person is trapped in the elevator and the elevator is stopped, the trapped person rotates the rotary switch 31 until the first limiting part 311 is aligned with the limiting groove 322, and then presses the rotary switch 31 to insert the first limiting part 311 into the limiting groove 322; through the above operation, the end of the pull rope 23 away from the sliding member 21 is wound in the winding groove 324, and the pull rope 23 drives the sliding member 21 to slide, so that the air inlet 11 is connected to the ventilation outlet 211 and the air outlet 12 is connected to the ventilation outlet 211, and at the same time the sliding member 21... The elastic element 22 is stretched, and under the elastic force of the elastic element 22, the pull rope 23 always has a pulling force on the rotary switch 31, so that the first limiting part 311 abuts against the groove wall of the limiting groove 322, and thus the first limiting part 311 is not easy to come out of the limiting groove 322 without external force interference; in addition, after pressing the rotary switch 31, the power supply 33 moves to the conductive cavity 321 and is electrically connected to the fan 17 through the conductive area of ​​the conductive cavity 321, thereby activating the fan 17 and making the fan 17 work.

[0061] After the air inlet 11 and the air outlet 12 are connected to the ventilation opening 211, under the action of the fan 17, the airflow enters the elevator car from the air inlet 11 through the filter plate 15, and then flows out from the air outlet 12, forming a circulating ventilation.

[0062] After the elevator resumes normal operation, pull the rotary switch 31 to disengage the first limiting part 311 from the limiting groove 322. When the first limiting part 311 is completely disengaged from the limiting groove 322, the sliding part 21 is reset under the elastic force of the elastic member 22. The sliding part 21 drives the pull rope 23 to move, and the pull rope 23 drives the rotary switch 31 to reset, so that the sliding part 21 covers the air inlet 11 and the air outlet 12 again, thereby reducing interference with the normal operation of the elevator.

[0063] Example 2

[0064] Referring to Figure 7, the difference between this embodiment and Embodiment 1 is that the control mechanism 3 further includes a rotating member 34, which is hinged to the receiving member 32 at its hinge point. The rotating member 34 has two intersecting abutment portions 341, the ends of which are used to abut against the surface of the power supply 33 away from the rotary switch 31. The distance between the hinge points of the ends of the abutment portions 341 is greater than the distance between the power supply 33 and the hinge point. The rotating member 34 has a force-receiving portion 342, with the hinge point located between the abutment portion 341 and the force-receiving portion 342. The end of the force-receiving portion 342 away from the hinge point is connected to a wind vane 343, which has a projection in the vertical direction. The wind vane 343 extends to the outside of the car body 1, and the conductive cavity 321 penetrates the outer wall of the car body 1 to form a rotation space for the rotating member 34 to rotate.

[0065] The two contact parts 341 and the force-bearing part 342 are fixed to each other.

[0066] When the elevator is running, the car body 1 moves relative to the airflow in the elevator shaft, that is, the air deflector 343 moves relative to the airflow. Under the action of the airflow on the air deflector 343, the force-bearing part 342 rotates, driving the two abutting parts 341 to rotate. When the abutting part 341 rotates, it abuts against the power supply 33, applying force to the power supply 33, thereby causing the first limiting part 311 to disengage from the limiting groove 322. Then, under the action of the elastic member 22, the sliding member 21 and the rotary switch 31 automatically reset. Since the distance between the end of the abutting part 341 and the hinge point is greater than the distance between the power supply 33 and the hinge point, when the power supply 33 is completely pushed out of the conductive cavity 321, the two abutting parts 341 are still located on the upper and lower sides of the horizontal plane where the hinge point is located. This means that when the rotary switch 31 is pressed to push the power supply 33 into the conductive cavity 321, the power supply 33 will abut against one of the abutting parts 341 and drive the abutting part 341 to rotate, so that the abutting part 341 will not interfere with the movement of the power supply 33.

[0067] Specifically, the receiving member 32 has a second limiting part 325 in the conductive cavity 321. The second limiting part 325 is used for the abutting part 341 to abut, so that when the rotating member 34 rotates, the groove wall of the second limiting part 325 limits the abutting part 341. At this time, even if the wind sign 343 continues to be subjected to force, the abutting part 341 in the conductive cavity 321 will not continue to rotate in the direction of the other abutting part 341. Thus, when the power supply 33 is pressed into the conductive cavity 321, the rotating member 34 can rotate smoothly and reset under the abutting action of the power supply 33.

[0068] Furthermore, a magnet (not shown in the figure) is provided at the position where the abutment part 341 abuts in the second limiting part 325, and the end of the abutment part 341 is made of magnetic material. Thus, when the abutment part 341 abuts in the second limiting part 325, the abutment part 341 is quickly fixed by magnetic attraction. On the one hand, this reduces the risk of shaking after the abutment part 341 collides with the second limiting part 325, and on the other hand, it reduces the continuous rotation of the rotating part 34 under the action of wind during elevator operation, thereby improving the stability of elevator operation.

[0069] Furthermore, refer to Figure 8 The force-bearing part 342 has multiple parts, which are arranged at intervals along the height direction of the car body 1. The multiple wind vanes 343 corresponding to the multiple force-bearing parts 342 are staggered. This increases the contact surface between the rotating part 34 and the airflow, making it easier for the rotating part 34 to rotate under the action of the airflow. On the other hand, the lever formed by the rotating part 34 has more power arms, so that the rotating part 34 can be driven to rotate more easily when the airflow direction is upward or downward.

[0070] Furthermore, the multiple force-bearing parts 342 are divided into two groups, which are symmetrically arranged with the axis of symmetry extending along the height direction of the car body 1. Along the height direction of the car body 1, the distance between the force-bearing parts 342 and the axis of symmetry decreases. That is, the distribution of the multiple force-bearing parts 342 can be a regular "V" shape or an inverted "V" shape. Taking a regular "V" shape as an example, when the elevator is moving upwards, the airflow flows downwards relative to the elevator. The lowest air intake vent 343, in addition to being affected by the vertical airflow, also receives some airflow from the air intake vent 343 above it. This improves the stability of the rotating component 34 under stress and makes it easier for the rotating component 34 to rotate under the influence of the airflow.

[0071] Furthermore, the wind vane 343 has multiple force-bearing surfaces 344, with an included angle between adjacent force-bearing surfaces 344, at least one of which faces upward and at least one faces downward. In this embodiment, the wind vane 343 is arranged in an "X" shape, and the included angle between adjacent force-bearing surfaces 344 further improves the force stability of the rotating component 34.

[0072] Furthermore, a roller 345 is rotatably connected to the end of the abutment portion 341. The roller 345 abuts against the power source 33, thereby reducing the relative friction between the abutment portion 341 and the power source 33, and improving the stability and smoothness of the movement of the abutment portion 341 relative to the power source 33. In this embodiment, the roller 345 is made of a magnetic material to cooperate with the magnet in the second limiting portion 325; in other embodiments, if no magnet is provided in the second limiting portion 325, the material of the roller 345 is not limited.

[0073] The implementation principle of Example 2 is as follows: When the elevator is running, the gas flows relative to the elevator, that is, the gas flows relative to the rotating part 34. Under the action of the airflow, the rotating part 34 rotates, which in turn causes the abutment part 341 to rotate. One of the two abutment parts 341 abuts against the power source 33. Under the action of the abutment part 341, the power source 33 moves away from the rotating part 34, causing the power source 33 to be dislodged from the conductive cavity 321. At the same time, the first limiting part 311 is dislodged from the limiting groove 322. Then the fan 17 is de-energized, and the sliding part 21 is reset under the action of the elastic part 22.

[0074] When the elevator is stationary, the trapped person inside the elevator turns and presses the rotary switch 31, and the power supply 33 moves into the conductive cavity 321. At the same time, under the action of the power supply 33 against the abutment part 341, the rotating part 34 rotates, providing clearance for the movement of the power supply 33.

[0075] Example 3

[0076] Reference Figure 9The difference between this embodiment and embodiment 2 is that the receiving member 32 is fixedly connected to a latex sheet 326. The latex sheet 326 is located between the rotating member 34 and the power supply 33. The side wall of the latex sheet 326 is connected to the cavity wall of the conductive cavity 321. The latex sheet 326 is used to isolate the power supply 33 from the outside of the car body 1, thereby reducing the risk of external dust and other impurities accumulating in the conductive area of ​​the conductive cavity 321 and the power supply 33.

[0077] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A ventilated elevator car, characterized in that: The system includes a car body (1), an adjustment mechanism (2), and a control mechanism (3). The car body (1) has an air inlet (11) at its upper part and an air outlet (12) at its lower part. A fan (17) is installed in both the air inlet (11) and the air outlet (12). The adjustment mechanism (2) includes two sliding members (21) slidably connected to the car body (1). A ventilation opening (211) is provided through the car; one end of the sliding member (21) is connected to an elastic member (22), and the end of the elastic member (22) away from the sliding member (21) is connected to the car body (1). When the elastic member (22) is at its original length, the two sliding members (21) respectively cover the air inlet (11) and the air outlet (12); the end of the sliding member (21) away from the elastic member (22) is connected to a pull rope (23). The control mechanism (3) includes a rotary switch (31) and a receiving member (32). The rotary switch (31) is rotatably connected to the receiving member (32), and the receiving member (32) is connected to the car body (1). A power source (33) is provided on the surface of the rotary switch (31) facing the receiving member (32), and the receiving member (32) is provided with a conductive cavity (321) for accommodating the power source (33). A first limiting part (311) is provided on the side wall of the rotary switch (31), and a limiting groove (322) is provided on the side wall of the receiving member (32). When the first limiting part (311) is inserted into the limiting groove (322), the power source (33) is located in the conductive cavity (321), and the power source (33) is electrically connected to the fan (17). The rotary switch (31) is connected to the end of the pull rope (23) away from the sliding member (21). When the first limiting part (311) is inserted into the limiting groove (322), the ventilation openings (211) of the two sliding members (21) are respectively connected to the air inlet (11) and the air outlet (12). The control mechanism (3) also includes a rotating member (34), which is hinged to the car body (1) at its hinge point. The rotating member (34) has two intersecting abutment parts (341), and the ends of the two abutment parts (341) are connected to each other. All parts are used to abut against the surface of the power supply (33) away from the rotary switch (31). The distance between the end of the abutting part (341) and the hinge point is greater than the distance between the power supply (33) and the hinge point. The rotating part (34) has a force-receiving part (342). The hinge point is located between the abutting part (341) and the force-receiving part (342). The end of the force-receiving part (342) away from the hinge point is connected to a wind sign (343). The wind sign (343) has a projection in the vertical direction. The wind sign (343) extends to the outside of the car body (1).

2. A ventilated elevator car according to claim 1, characterized in that: The car body (1) is provided with a guide (4), the side wall of the guide (4) is used for the pull rope (23) to abut, and the tangent of the side wall of the guide (4) for the pull rope (23) to abut is along the height direction of the car body (1).

3. A ventilated elevator car according to claim 2, characterized in that: The guide member (4) is rotatably connected to the car body (1).

4. A ventilated elevator car according to claim 1, characterized in that: The force-bearing part (342) has multiple parts, and the multiple force-bearing parts (342) are arranged at intervals along the height direction of the car body (1), and the multiple wind signs (343) corresponding to the multiple force-bearing parts (342) are arranged alternately.

5. A ventilated elevator car according to claim 4, characterized in that: The multiple force-bearing parts (342) are divided into two groups, and the two groups of force-bearing parts (342) are symmetrically arranged with the axis of symmetry extending along the height direction of the car body (1); along the height direction of the car body (1), the distance between the force-bearing parts (342) and the axis of symmetry decreases.

6. A ventilated elevator car according to claim 4 or 5, characterized in that: The wind sign (343) has at least four force-bearing surfaces (344), and there are included angles between adjacent force-bearing surfaces (344), of which at least one is upward and at least one is downward.

7. A ventilated elevator car according to claim 1, characterized in that: The receiving member (32) has a second limiting part (325), which is connected to the cavity wall of the conductive cavity (321) and is used for the abutting part (341) to abut.

8. A ventilated elevator car according to claim 7, characterized in that: The second limiting part (325) is provided with a magnet at the position where the abutting part (341) abuts, and the end of the abutting part (341) is made of magnetic material.

9. A ventilated elevator car according to claim 7 or 8, characterized in that: The receiving member (32) is connected to a latex sheet (326), which is located between the rotating member (34) and the power source (33). The latex sheet (326) is used to isolate the power source (33) from the outside of the car body (1).

Images