Noise reduction device and noise reduction method for double-car elevator and double-car elevator
By designing adjustable flow diversion devices in the dual-car elevator, and using the flow cone and drive devices to guide the airflow, the problem of high noise in the dual-car elevator is solved, and the effect of reducing wind noise and improving quietness is achieved.
Patent Information
- Application Number
- CN202411374452.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2024-12-27
AI Technical Summary
During operation, the airflow turbulence caused by the large spacing between the upper and lower cars, resulting in large wind noise. The size limitations of existing adjustment devices increase the difficulty of rectification and make it difficult to effectively reduce noise.
Design a double-car elevator noise reduction device, including upper and lower cars and flow guide devices, the flow guide device includes an adjustable flow guide and a driving device, and adjusts the clip of the flow guide under rising and falling conditions. Angles and telescopic to guide airflow and avoid turbulence formation.
It effectively reduces wind noise during operation of the double-car elevator, improves the quietness of the elevator, simplifies the adjustment of the car spacing, and adapts to the differences in floor heights of different buildings.
Smart Images
Figure CN119191020A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of elevators, and in particular to a noise reduction device and a noise reduction method for a double-car elevator and a double-car elevator. Background Art
[0002] When a double-car elevator is in operation, due to the large distance between the upper and lower cars, the airflow forms turbulence in the area between the upper and lower cars during the operation of the elevator, which in turn generates large wind noise, thereby increasing the noise inside the car. In the case where an adjustment device is installed between the upper and lower cars to adjust the distance between the cars, the airflow noise acting between the upper and lower cars is more prominent, and due to the size limitation of the adjustment device, the technical difficulty of rectifying the airflow between the upper and lower cars is also increased. Summary of the invention
[0003] The object of the present invention is to provide a double-car elevator noise reduction device, a noise reduction method and a double-car elevator, so as to alleviate the technical problem of high running noise of double-car elevators in the prior art.
[0004] In a first aspect, the present invention provides a double-car elevator noise reduction device, comprising: an upper car, a lower car and a flow guide device;
[0005] The upper car and the lower car are spaced apart from each other from top to bottom, and the flow guide device is installed between the upper car and the lower car.
[0006] In combination with the first aspect, the present invention provides a first possible implementation manner of the first aspect, wherein the flow guide device comprises: a first flow guide cover and a second flow guide cover;
[0007] The first air deflector is installed at the bottom of the upper car, and the second air deflector is installed at the top of the lower car.
[0008] In combination with the first possible implementation manner of the first aspect, the present invention provides a second possible implementation manner of the first aspect, wherein the first air guide cover includes: a first plate, a second plate and a first driving device;
[0009] The first plate and the second plate are arranged opposite to each other and are respectively hinged to the upper car;
[0010] The first plate member and the second plate member are respectively transmission-connected to the first driving device, and the first driving device is used to adjust the angle between the first plate member and the second plate member.
[0011] In combination with the first possible implementation manner of the first aspect, the present invention provides a third possible implementation manner of the first aspect, wherein the second air guide cover includes: a third plate member, a fourth plate member, and a second driving device;
[0012] The third plate and the fourth plate are arranged opposite to each other and are respectively hinged to the lower car;
[0013] The third plate member and the fourth plate member are respectively transmission-connected to the second driving device, and the second driving device is used to adjust the angle between the third plate member and the fourth plate member.
[0014] In combination with the first possible implementation manner of the first aspect, the present invention provides a fourth possible implementation manner of the first aspect, wherein the first air guide cover and the second air guide cover are respectively connected to a controller, and the controller is used to respectively regulate the expansion or contraction of the first air guide cover and the second air guide cover;
[0015] In the ascending condition, the projection of the first air deflector in the vertical direction covers the second air deflector and the lower car;
[0016] In the descending condition, the first air deflector and the upper car are both located within the projection of the second air deflector in the vertical direction.
[0017] In combination with the first aspect, the present invention provides a fifth possible implementation of the first aspect, wherein the flow guide device includes a bellows, one end of the bellows is connected to the upper car, and the other end of the bellows is connected to the lower car.
[0018] In combination with the first aspect, the present invention provides a sixth possible implementation of the first aspect, wherein the upper car is connected to the lower car via a telescopic device.
[0019] In combination with the sixth possible implementation of the first aspect, the present invention provides a seventh possible implementation of the first aspect, wherein the telescopic device is connected to a telescopic driving member, and the telescopic driving member is used to drive the telescopic device to extend and retract so as to adjust the distance between the upper car and the lower car.
[0020] In a second aspect, the double-car elevator noise reduction method provided by the present invention adopts the double-car elevator noise reduction device recorded in the first aspect, and comprises the following steps:
[0021] In the ascending condition, the airflow is guided by the flow guide device so that the airflow avoids the lower car;
[0022] In the descending condition, the flow guiding device is used to guide the airflow so that the airflow avoids the upper car.
[0023] In a third aspect, the double-car elevator provided by the present invention is equipped with the double-car elevator noise reduction device described in the first aspect.
[0024] The embodiments of the present invention bring the following beneficial effects: the upper car and the lower car are arranged at intervals from top to bottom, and the guide device is installed between the upper car and the lower car, which can avoid the formation of turbulence between the upper car and the lower car during the operation of the double-car elevator, thereby reducing wind noise and improving the quietness of the elevator.
[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the related technologies, the drawings required for use in the specific embodiments or the related technical descriptions will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0027] Figure 1 A schematic diagram of a first double-car elevator noise reduction device provided by an embodiment of the present invention in an ascending condition;
[0028] Figure 2 A schematic diagram of a first double-car elevator noise reduction device provided by an embodiment of the present invention in a descending condition;
[0029] Figure 3 A schematic diagram of a second double-car elevator noise reduction device provided in an embodiment of the present invention.
[0030] Icons: 100 - upper car; 200 - lower car; 300 - flow guide device; 310 - first flow guide cover; 311 - first plate; 312 - second plate; 313 - first drive device; 320 - second flow guide cover; 321 - third plate; 322 - fourth plate; 323 - second drive device; 330 - corrugated cover; 400 - telescopic device. DETAILED DESCRIPTION
[0031] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0032] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are only used to describe the difference in names, and cannot be understood as indicating or implying relative importance. The physical quantities in the formula, if not separately marked, should be understood as basic quantities of the basic units of the International System of Units, or derived quantities derived from the basic quantities through mathematical operations such as multiplication, division, differentiation or integration.
[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0034] like Figure 1 , Figure 2 and Figure 3 As shown, the double-car elevator noise reduction device provided by the embodiment of the present invention comprises: an upper car 100, a lower car 200 and a flow guide device 300; the upper car 100 and the lower car 200 are arranged at intervals from top to bottom, and the flow guide device 300 is installed between the upper car 100 and the lower car 200. The flow guide device 300 can guide the airflow to prevent the airflow from impacting the area between the upper car 100 and the lower car 200, thereby preventing the formation of turbulence between the upper car 100 and the lower car 200, thereby reducing the running wind noise of the double-car elevator.
[0035] like Figure 1 and Figure 2 As shown, in the embodiment of the present invention, the flow guide device 300 includes: a first flow guide cover 310 and a second flow guide cover 320; the first flow guide cover 310 is installed at the bottom of the upper car 100, and the second flow guide cover 320 is installed at the top of the lower car 200.
[0036] In an optional embodiment, both the first air guide 310 and the second air guide 320 can be configured as conical air guides, and an adjustment device can be further provided to adjust the taper of the conical air guide. The cross-sectional area of the first air guide 310 gradually decreases from bottom to top, and the cross-sectional area of the second air guide 320 increases from bottom to top. The first air guide 310 is used to guide the airflow when ascending, and the second air guide 320 is used to guide the airflow when descending. Therefore, in the ascending condition, the first air guide 310 can be driven to open and the second air guide 320 can be contracted; in the descending condition, the first air guide 310 can be driven to contract and the second air guide 320 can be driven to open.
[0037] In this embodiment, the first air deflector 310 includes: a first plate 311, a second plate 312 and a first driving device 313; the first plate 311 and the second plate 312 are arranged opposite to each other and are respectively hinged to the upper car 100; the first plate 311 and the second plate 312 are respectively connected to the first driving device 313, and the first driving device 313 is used to adjust the angle between the first plate 311 and the second plate 312.
[0038] Among them, the first driving device 313 can adopt a stepping motor to drive the first plate 311 and the second plate 312 to swing; the first driving device 313 can also be configured as a telescopic driving cylinder, and the first plate 311 and the second plate 312 are respectively hingedly connected to the telescopic driving cylinder, and the telescopic driving cylinder is used to push and pull the first plate 311 and the second plate 312 to swing, thereby changing the angle between the first plate 311 and the second plate 312.
[0039] Further, the second air guide cover 320 includes: a third plate 321, a fourth plate 322 and a second drive device 323; the third plate 321 and the fourth plate 322 are arranged opposite to each other and are respectively hinged to the lower car 200; the third plate 321 and the fourth plate 322 are respectively connected to the second drive device 323 by transmission, and the second drive device 323 is used to adjust the angle between the third plate 321 and the fourth plate 322. Among them, the optional implementation of the second drive device 323 is the same as that of the first drive device 313, which will not be repeated here.
[0040] It should be noted that the first air deflector 310 and the second air deflector 320 are respectively connected to the controller, which is used to respectively adjust the expansion or contraction of the first air deflector 310 and the second air deflector 320; in the ascending condition, the projection of the first air deflector 310 in the vertical direction covers the second air deflector 320 and the lower car 200; in the descending condition, the first air deflector 310 and the upper car 100 are both located within the projection of the second air deflector 320 in the vertical direction.
[0041] In addition, a slide rail adapted to the first air deflector 310 and the second air deflector 320 may be provided on the inner wall of the elevator shaft. When ascending, the first air deflector 310 opens and cooperates with the slide rail, and when descending, the second air deflector 320 opens and cooperates with the slide rail, thereby improving the stability of the double-car elevator.
[0042] like Figure 3 As shown, in another embodiment, the flow guide device 300 includes a bellows 330, one end of the bellows 330 is connected to the upper car 100, and the other end of the bellows 330 is connected to the lower car 200. The bellows 330 can not only avoid turbulence between the upper car 100 and the lower car 200, but also adapt to the change in the distance between the upper car 100 and the lower car 200.
[0043] like Figure 1 , Figure 2 and Figure 3 As shown, in an optional embodiment, the upper car 100 and the lower car 200 are connected by a telescopic device 400, and the telescopic device 400 is connected to a telescopic driving member, and the telescopic driving member is used to drive the telescopic device 400 to extend and retract to adjust the distance between the upper car 100 and the lower car 200. The distance between the upper car 100 and the lower car 200 can be adjusted as needed to adapt to the difference in floor heights of different buildings.
[0044] like Figure 1 and Figure 2 As shown, the double-car elevator noise reduction method provided in the embodiment of the present invention adopts the double-car elevator noise reduction device recorded in the above-mentioned embodiment, and includes the following steps: under the ascending condition, the guide device 300 is used to guide the airflow so that the airflow avoids the lower car 200; under the descending condition, the guide device 300 is used to guide the airflow so that the airflow avoids the upper car 100, thereby reducing the wind noise during the operation of the elevator and improving the quietness of the elevator.
[0045] The double-car elevator provided in the embodiment of the present invention is equipped with the double-car elevator noise reduction device described in the above embodiment. The double-car elevator has the technical effect of the above noise reduction device, which will not be repeated here.
[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. A double-car elevator noise reduction device, characterized in that: include: An upper car (100), a lower car (200) and a flow guide device (300); The upper car (100) and the lower car (200) are spaced apart from each other from top to bottom, and the flow guide device (300) is installed between the upper car (100) and the lower car (200).
2. The double-car elevator noise reduction device according to claim 1, characterized in that: The flow guide device (300) comprises: a first flow guide cover (310) and a second flow guide cover (320); The first air deflector (310) is installed at the bottom of the upper car (100), and the second air deflector (320) is installed at the top of the lower car (200).
3. The double-car elevator noise reduction device according to claim 2, characterized in that: The first air guide cover (310) comprises: a first plate (311), a second plate (312) and a first driving device (313); The first plate member (311) and the second plate member (312) are arranged opposite to each other and are respectively hinged to the upper car (100); The first plate member (311) and the second plate member (312) are respectively transmission-connected to the first driving device (313), and the first driving device (313) is used to adjust the angle between the first plate member (311) and the second plate member (312).
4. The double-car elevator noise reduction device according to claim 2, characterized in that: The second air guide cover (320) comprises: a third plate (321), a fourth plate (322) and a second driving device (323); The third plate member (321) and the fourth plate member (322) are arranged opposite to each other and are respectively hinged to the lower car (200); The third plate member (321) and the fourth plate member (322) are respectively transmission-connected to the second driving device (323), and the second driving device (323) is used to adjust the angle between the third plate member (321) and the fourth plate member (322).
5. The double-car elevator noise reduction device according to claim 2, characterized in that: The first air guide cover (310) and the second air guide cover (320) are respectively connected to a controller, and the controller is used to respectively regulate the expansion or contraction of the first air guide cover (310) and the second air guide cover (320); In an ascending condition, the projection of the first air deflector (310) in the vertical direction covers the second air deflector (320) and the lower car (200); In a descending condition, the first air deflector (310) and the upper car (100) are both located within the projection of the second air deflector (320) in the vertical direction.
6. The double-car elevator noise reduction device according to claim 1, characterized in that: The flow guide device (300) comprises a bellows (330), one end of the bellows (330) is connected to the upper car (100), and the other end of the bellows (330) is connected to the lower car (200).
7. The double-car elevator noise reduction device according to any one of claims 1 to 6, characterized in that: The upper car (100) and the lower car (200) are connected via a telescopic device (400).
8. The double-car elevator noise reduction device according to claim 7, characterized in that: The telescopic device (400) is connected to a telescopic driving member, and the telescopic driving member is used to drive the telescopic device (400) to telescope so as to adjust the distance between the upper car (100) and the lower car (200).
9. A method for reducing noise in a double-car elevator, characterized in that: The double-car elevator noise reduction method adopts the double-car elevator noise reduction device according to any one of claims 1 to 8, and comprises the following steps: In an ascending condition, the flow guiding device (300) is used to guide the airflow so that the airflow avoids the lower car (200); In a descending condition, the flow guiding device (300) is used to guide the airflow so that the airflow avoids the upper car (100).
10. A double-car elevator, characterized in that: The double-car elevator is equipped with the double-car elevator noise reduction device according to any one of claims 1-8.