A non-powered wind cap for elevator shafts

Abstract

This utility model provides a non-powered ventilation cap for elevator shafts, comprising a base, a blade assembly, an opening / closing component, a pushing component, a resetting component, and a controller. The opening / closing component is located in the center of the base and is used to adjust the size of the airflow space within the base. The pushing component is located outside the base and is used to control the opening / closing angle of the opening / closing component. The resetting component is located outside the base and to one side of the pushing component, and is used to open the opening / closing component. The controller is located inside the base and below the opening / closing component. This utility model solves the technical problem that the passive continuous ventilation characteristics of existing conventional non-powered ventilation caps can cause a chimney effect in the elevator shaft, leading to safety hazards in the elevator car, thereby reducing safety hazards.

Description

Technical Field

[0001] This utility model relates to the field of building ventilation equipment technology, and in particular to a non-powered ventilation cap for elevator shafts. Background Technology

[0002] A non-powered ventilator utilizes natural wind and the temperature difference between indoors and outdoors to drive a turbine, achieving heat exchange through air convection. Non-powered ventilators have a wide range of applications, including common factory workshops, densely populated areas, swimming pools, and bathrooms, and are also used in special scenarios such as elevator shafts.

[0003] Because elevator shafts are relatively sealed with poor air circulation, especially in summer, the heat generated by elevator operation cannot escape, resulting in typically high temperatures inside the shaft. Therefore, a special non-powered ventilator is required for elevator shafts. Typically, this specialized non-powered ventilator can further reduce the temperature inside the shaft by 5-10°C compared to a conventional ventilator, ensuring the temperature does not exceed 40°C.

[0004] Meanwhile, conventional ventilators cause the elevator shaft to be in a state of ventilation and convection, which in turn creates a "chimney effect" in the shaft. Especially during the daytime working hours, when the elevator is used frequently, if the air pressure in the shaft is high, it will make it difficult for the elevator hall doors to open and close, causing unnecessary vibrations during the operation of the elevator car. This not only poses a safety hazard, but also reduces the service life of the elevator and increases maintenance costs. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a non-powered ventilation cap for elevator shafts, which solves the problem that the passive and continuous ventilation characteristics of conventional non-powered ventilation caps in existing technologies can cause a chimney effect in the elevator shaft, leading to safety hazards in the elevator car and increased maintenance costs in the later stages.

[0006] According to an embodiment of this utility model, a non-powered wind cap for elevator shafts includes a cylindrical base, a blade assembly, an opening / closing component, a pushing component, a resetting component, and a controller. The opening / closing component is located in the middle of the cylindrical base and is used to adjust the size of the airflow space within the cylindrical base. The pushing component is located outside the cylindrical base and is used to control the opening / closing angle of the opening / closing component. The resetting component is located outside the cylindrical base and on one side of the pushing component, and is used to open the opening / closing component. The controller is located inside the cylindrical base and below the opening / closing component, and is electrically connected to the pushing component and is used to receive elevator operation signals.

[0007] In the above embodiments, by setting a cylindrical base and installing an opening and closing component inside the cylindrical base, and by using a pushing component and a resetting component to rotate the opening and closing component, the size of the airflow space inside the cylindrical base is adjusted. Specifically, a blade assembly is installed on the cylindrical base, and the cylindrical base is installed in a designated position. When the elevator car is not in use and is in a stationary state, the opening and closing component is in the open state, and the blade assembly can rotate on the cylindrical base to allow air convection. When someone operates the elevator, their control signal is sent to the controller, and the controller sends a signal to the pushing component, which starts and drives the opening and closing component to rotate, thereby reducing the airflow in the cylindrical base and thus reducing the wind pressure in the elevator shaft, thereby reducing the impact on the elevator hall door and the elevator car.

[0008] Furthermore, after the elevator car has stopped running and has been stationary for a period of time, the controller can cancel the control of the push component. At this time, the reset component can make the opening and closing component open again, thereby restoring the airflow convection rate in the elevator shaft.

[0009] In some embodiments, the cylinder seat is a hollow cylinder, and the outer edge of the opening / closing member is fixedly connected to the inner wall of the cylinder seat.

[0010] In some embodiments, the opening and closing member includes a mounting ring fixedly connected to the inner wall of the cylinder seat and a rotating plate rotatably mounted inside the mounting ring. The top of the mounting ring has a circular through hole for mounting the rotating plate. Rotating shafts that pass through the mounting ring to the outside of the cylinder seat are fixedly provided on opposite sides of the rotating plate. The pushing member and the resetting member are adapted to the same rotating shaft.

[0011] In some embodiments, a stop block is fixedly installed on one side of the top of the rotating plate, and a movable rod adapted to the stop block is fixedly installed on one side of the inner wall of the blade assembly.

[0012] In some embodiments, the pusher includes a gear fixedly mounted on the end of the rotating shaft and a rack slidably mounted on the outside of the cylinder and meshing with the gear. A permanent magnet block is fixedly connected to one end of the rack opposite to the gear. An electromagnet block adapted to the permanent magnet block is fixedly mounted on the outside of the cylinder. The permanent magnet block and the electromagnet block are distributed in a similar polarity. The electromagnet block is electrically connected to the controller.

[0013] In some embodiments, a limiting block is fixedly installed on the outside of the cylinder base on the side opposite to the electromagnet block of the permanent magnet block.

[0014] In some embodiments, the reset member includes a fixed rod fixedly installed outside the cylinder base and a spring sleeved outside the fixed rod. The bottom of the rack is slidably connected to the fixed rod, and the two ends of the spring are respectively fixedly connected to one end of the fixed rod opposite to the rack and the other end close to the rack.

[0015] Compared with the prior art, this utility model has the following beneficial effects: by adopting a pusher and a resetter in conjunction with an opening and closing mechanism to change the size of the air flow space inside the cylinder seat, it solves the technical problem that the passive and continuous ventilation characteristics of the existing conventional non-powered wind cap will cause the elevator shaft to form a chimney effect, resulting in safety hazards in the elevator car and increased maintenance costs in the later stage. Thus, it achieves the technical effect of reducing safety hazards and improving the service life of the elevator car. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the side sectional structure;

[0018] Figure 3 This is a cross-sectional view of the opening and closing component in the open state according to an embodiment of the present utility model.

[0019] Figure 4 for Figure 3 A schematic diagram of the structure of part A;

[0020] Figure 5 This is a cross-sectional view of the opening and closing component in the closed state according to an embodiment of the present utility model.

[0021] Figure 6 for Figure 5 A structural diagram of part B.

[0022] In the above figures: 100, cylinder base; 200, blade assembly; 300, opening and closing component; 310, mounting ring; 320, rotating plate; 321, stop block; 322, moving rod; 330, circular through hole; 340, rotating shaft; 400, pushing component; 410, gear; 420, rack; 430, permanent magnet block; 440, electromagnet block; 450, limiting block; 500, resetting component; 510, fixing rod; 520, spring; 600, controller; 700, protective cover. Detailed Implementation

[0023] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] In an exemplary implementation, such as Figures 1-6 As shown, this embodiment provides a non-powered air cap for elevator shafts, including a base 100, a blade assembly 200, an opening / closing member 300, a pushing member 400, a resetting member 500, and a controller 600. The opening / closing member 300 is located in the middle of the base 100 and is used to adjust the size of the airflow space inside the base 100. The pushing member 400 is located outside the base 100 and is used to control the opening / closing angle of the opening / closing member 300. The resetting member 500 is located outside the base 100 and is located on one side of the pushing member 400. The resetting member 500 is used to open the opening / closing member 300. The controller 600 is located inside the base 100 and below the opening / closing member 300. The controller 600 is electrically connected to the pushing member 400 and is used to receive elevator operation signals.

[0026] In this embodiment, the blade assembly 200 is installed on the cylinder base 100, and the cylinder base 100 is installed in a designated position. When the elevator car is not in use and is stationary, the opening and closing member 300 is in the open state, and the blade assembly 200 can rotate on the cylinder base 100 to allow air convection. When someone operates the elevator, their control signal is sent to the controller 600, and the controller 600 sends a signal to the push member 400. The push member 400 starts and drives the opening and closing member 300 to rotate, which reduces the airflow in the cylinder base 100, thereby reducing the wind pressure in the elevator shaft and reducing the impact on the elevator hall door and the elevator car.

[0027] Furthermore, after the elevator car has stopped running and has been stationary for a period of time, the controller 600 can cancel the control of the pusher 400. At this time, the reset member 500 can make the opening and closing member 400 open again, thereby restoring the airflow convection rate in the elevator shaft.

[0028] The cylindrical base 100 is hollow cylindrical, and the outer edge of the opening and closing member 300 is fixedly connected to the inner wall of the cylindrical base 100.

[0029] In one embodiment, please refer to Figures 1-4 The opening and closing component 300 includes a mounting ring 310 fixedly connected to the inner wall of the cylindrical base 100 and a rotating plate 320 rotatably mounted inside the mounting ring 310. The top of the mounting ring 310 is provided with a circular through hole 330 for mounting the rotating plate 320. On opposite sides of the rotating plate 320, there are rotating shafts 340 that pass through the mounting ring 310 to the outside of the cylindrical base 100. The pushing component 400 and the resetting component 500 are adapted to the same rotating shaft 340.

[0030] In this embodiment, the outer diameter of the mounting ring 310 is the same as the inner diameter of the cylinder seat 100, the diameter of the circular through hole 330 is the same as the diameter of the rotating plate 320, and the rotating shafts 340 are symmetrically and coaxially distributed, allowing the rotating plate 320 to rotate inside the mounting ring 310 via the rotating shafts 340.

[0031] Please refer to Figure 3 A stop block 321 is fixedly installed on one side of the top of the rotating plate 320, and a moving rod 322 adapted to the stop block 321 is fixedly installed on one side of the inner wall of the blade assembly 200.

[0032] In this embodiment, when the rotating plate 320 closes the circular through hole 330, the outer edge of the stop block 321 contacts the inner wall of the cylinder seat 100, and the moving rod 322 on the inner wall of the blade assembly 200 will be blocked by the stop block 321, so the blade assembly 200 can no longer rotate.

[0033] In one embodiment, please refer to Figures 2-6 The pusher 400 includes a gear 410 fixedly mounted on the end side of the rotating shaft 340 and a rack 420 slidably mounted on the outside of the cylinder 100 and meshing with the gear 410. A permanent magnet block 430 is fixedly connected to one end of the rack 420 opposite to the gear 410. An electromagnet block 440 adapted to the permanent magnet block 430 is fixedly mounted on the outside of the cylinder 100. The permanent magnet block 430 and the electromagnet block 440 are distributed in a similar polarity. The electromagnet block 440 is electrically connected to the controller 600.

[0034] In this embodiment, when the controller 600 receives a signal, it controls the electromagnet block 440 to be energized, causing the electromagnet block 440 to generate magnetism. Since the electromagnet block 440 and the permanent magnet block 430 are distributed in a similar polarity, the permanent magnet block 430 will be pushed to one side, causing the rack 420 to move together. The rack 420 displaces to one side and meshes with the gear 410 to rotate. The gear 410 drives the rotating shaft 340 to rotate, thereby causing the rotating plate 320 to rotate, achieving the purpose of adjusting the airflow speed inside the cylinder seat 100.

[0035] Furthermore, the magnetic force of the electromagnet block 440 is controlled by controlling the current flowing through the electromagnet block 440. Different magnetic forces push the permanent magnet block 430 a different distance, thereby realizing different angles of rotation of the rotating plate 320.

[0036] Please refer to Figure 4 and Figure 6 The cylinder base 100 is externally fixedly installed with a limiting block 450 located on the side of the permanent magnet block 430 opposite to the electromagnet block 440.

[0037] Furthermore, the rack 420 is arc-shaped.

[0038] In one embodiment, please refer to Figure 5 and Figure 6 The reset component 500 includes a fixed rod 510 fixedly installed outside the cylinder base 100 and a spring 520 sleeved outside the fixed rod 510. The bottom of the rack 420 is slidably connected to the fixed rod 510. The two ends of the spring 520 are respectively fixedly connected to one end of the fixed rod 510 away from the rack 420 and the other end close to the rack 420.

[0039] In this embodiment, when the elevator car is unoccupied and stationary, the electromagnet block 440 is de-energized and loses its magnetism by the controller 600. At this time, the spring 520 outside the fixed rod 510 will push the rack 420 to reset, thereby driving the gear 410 to reset the rotating plate 320. The rotating plate 320 is in a vertical state, and the air flow space inside the cylinder base 100 is at its maximum.

[0040] Furthermore, the fixing rod 510 is arc-shaped.

[0041] Please refer to Figures 1-4 The gear 410, rack 420, permanent magnet block 430, electromagnet block 440, limit block 450, fixing rod 510 and spring 520 are covered with a protective cover 700, which is fixedly connected to the outside of the cylinder base 100.

[0042] To better understand this utility model, the following is combined with... Figures 1 to 6 The technical solution of this utility model is described in detail as follows: When in use, after the controller 600 receives a signal, it controls the electromagnet block 440 to be energized, so that the electromagnet block 440 generates magnetism. Since the electromagnet block 440 and the permanent magnet block 430 are distributed in a similar polarity, the permanent magnet block 430 will be pushed to one side, causing the rack 420 to move together. The rack 420 displaces to one side and meshes with the gear 410 to drive it to rotate. The gear 410 drives the rotating shaft 340 to rotate, thereby causing the rotating plate 320 to rotate, so as to achieve the purpose of adjusting the air flow space inside the cylinder base 100.

[0043] Furthermore, when the elevator car is unoccupied and stationary, the electromagnet block 440 can be de-energized and lose its magnetism by the controller 600. At this time, the spring 520 outside the fixed rod 510 will push the rack 420 to reset, thereby driving the gear 410 to reset the rotating plate 320. The rotating plate 320 is in a vertical state, and the air flow space inside the cylinder base 100 is at its maximum.

[0044] In summary, this utility model uses a pusher 400 and a resetter 500 in conjunction with an opening and closing member 300 to change the size of the airflow space inside the cylinder seat. This solves the technical problem that the passive and continuous ventilation characteristics of existing conventional non-powered ventilators can cause a chimney effect in the elevator shaft, leading to safety hazards in the elevator car and increased maintenance costs in the later stages. Thus, it achieves the technical effect of reducing safety hazards and improving the service life of the elevator car.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A non-powered wind cap for elevator shafts, comprising a cylindrical base and a blade assembly rotatably disposed on the top of the cylindrical base, characterized in that: An opening and closing component is provided in the middle of the cylinder seat and is used to adjust the size of the airflow space inside the cylinder seat. A pusher, which is located outside the cylinder base and is used to control the opening and closing angle of the opening and closing member; A reset member is provided outside the cylinder base and located on one side of the pusher member, and the reset member is used to put the opening and closing member in an open state; The controller is located inside the cylinder and below the opening / closing member. The controller is electrically connected to the pushing member and is used to receive elevator operation signals.

2. The non-powered wind cap for elevator shafts as described in claim 1, characterized in that, The cylinder base is hollow cylindrical, and the outer edge of the opening and closing member is fixedly connected to the inner wall of the cylinder base.

3. The non-powered wind cap for elevator shafts as described in claim 1, characterized in that, The opening and closing component includes a mounting ring fixedly connected to the inner wall of the cylindrical base and a rotating plate rotatably installed inside the mounting ring. The top of the mounting ring has a circular through hole for mounting the rotating plate. Rotating shafts that pass through the mounting ring to the outside of the cylindrical base are fixedly provided on opposite sides of the rotating plate. The pushing component and the resetting component are adapted to the same rotating shaft.

4. The non-powered wind cap for elevator shafts as described in claim 3, characterized in that, A stop block is fixedly installed on one side of the top of the rotating plate, and a movable rod adapted to the stop block is fixedly installed on one side of the inner wall of the blade assembly.

5. The non-powered wind cap for elevator shafts as described in claim 3, characterized in that, The pushing component includes a gear fixedly mounted on the end of the rotating shaft and a rack slidably mounted on the outside of the cylinder and meshing with the gear. A permanent magnet block is fixedly connected to one end of the rack opposite to the gear. An electromagnet block adapted to the permanent magnet block is fixedly mounted on the outside of the cylinder. The permanent magnet block and the electromagnet block are distributed in a similar polarity. The electromagnet block is electrically connected to the controller.

6. The non-powered wind cap for elevator shafts as described in claim 5, characterized in that, A limiting block is fixedly installed on the outside of the cylinder base, located on the side of the permanent magnet block opposite to the electromagnet block.

7. The non-powered wind cap for elevator shafts as described in claim 5, characterized in that, The reset component includes a fixed rod fixedly installed outside the cylinder base and a spring sleeved outside the fixed rod. The bottom of the rack is slidably connected to the fixed rod, and the two ends of the spring are fixedly connected to the fixed rod at one end opposite to the rack and the other end close to the rack, respectively.

Images