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Elevator car wall structure
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A technology of elevator car and car wall, which is applied in the field of elevator car car wall structure, and can solve problems such as high cost, increased car weight, and reduced car effective volume
Active Publication Date: 2021-08-13
SHANGHAI MITSUBISHI ELEVATOR CO LTD
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Abstract
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Problems solved by technology
In the ventilation structure of the elevator car, upper ventilation holes and lower ventilation holes facing the inner side of the elevator car need to be opened on the top and bottom of the car wall. The upper ventilation holes and lower ventilation holes facing the inner side of the elevator car affect the appearance of the elevator car. The inner side of the car wall covers the interior decoration. The car wall blocks the upper and lower ventilation holes, which is costly and will increase the weight of the car or reduce the effective volume of the car
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Embodiment 1
[0057] like figure 2 , image 3 As shown, the car wall structure of the elevator car includes a car wall plate 1, a skirting plate 2 and a sealing plate 3;
[0058] The skirting board 2 includes an upper horizontal surface 21 and a vertical surface 22 of the skirting which are connected together;
[0059] The outer end of the upper horizontal surface 21 of the kick is connected to the upper end of the vertical surface 22 of the kick;
[0060] The car wall panel 1 includes a car wall vertical surface 11 and a car wall lower transverse folding surface 12;
[0061] The inner end of the lower transverse folding surface 12 of the car wall is connected to the lower end of the vertical surface 11 of the car wall;
[0062] The lower transverse folded surface 12 of the car wall and the upper transverse surface 21 of the skirting are attached and installed;
[0063] The sealing plate 3 includes a horizontal gusset 30 and m upper gussets 31, where m is a positive integer;
[0064] ...
Embodiment 2
[0077] Based on the elevator car car wall structure of Implementation 1, the section at the resonant cavity of the air inlet channel 41 is rectangular;
[0078] The cross section of the air inlet channel 41 outside the resonance cavity is the same rectangle;
[0079] The front and rear lengths of the cross-section at the resonant cavity 410 are greater than the cross-sectional lengths at places outside the resonant cavity;
[0080] The inner and outer widths of the section at the resonance cavity 410 are equal to the inner and outer widths of the sections outside the resonance cavity.
Embodiment 3
[0082] Based on the elevator car wall structure of Implementation 1, the resonant cavity 410 is a cuboid;
[0083] The length, width and height of the resonance cavity 410 are x, y, z respectively;
[0084]
[0085] no x Integer 1 to 6, n y Integer 1 to 6, n z for integers 1 to 6, c 0 is the air speed of sound, and f is the specific frequency of the shaft.
[0086] Implementation of the elevator car car wall structure of the third, the resonant cavity 410 is a cuboid, and the length, width and height of the resonant cavity 410 are respectively x, y, and the order n in the calculation formula of z x , n y , n z The value is preferably from 1 to 6, and the smaller the order, the better the effect if the structural size allows; in this application, because the muffler air duct and the car wall panel 1 are designed as one, and the sound incident direction is mainly up and down. (z direction), in order not to increase the outline size of the car, the front and rear length...
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Abstract
The invention discloses an elevator car wall structure. The structure is characterized in that a sealing plate, a car wall vertical surface and a car wall lower cross folding surface jointly define a silencing air duct, and a cross section abrupt change area of each upper buckle plate of the sealing plate is buckled with the car wall vertical surface to form a resonant cavity of an air inlet channel; air enters a car through the air inlet channel, a main channel and corresponding ventilation holes formed in the car wall lower cross folding surface and a skirting upper transverse surface, due to the fact that the size and the shape of the resonant cavity are designed according to the specific frequency of a shaft, it is guaranteed that the modal frequency of the resonant cavity coincides with the specific frequency of the shaft, and the acoustic impedance of the silencing air duct to the specific frequency of the shaft can be improved; and it is ensured that the ventilation area is not changed, noise in the car is reduced, meanwhile, the overall contour size of the car wall structure is not increased, interference with other parts of the car is avoided, meanwhile, no extra technology is needed in the installation process, and installation is convenient.
Description
technical field [0001] The invention relates to an elevator car, in particular to an elevator car car wall structure. Background technique [0002] The elevator car system is based on the relevant standards of elevator manufacturing and installation safety regulations, among which GB7588-2003 stipulates that the upper and lower parts of the elevator car must have ventilation openings, and the effective area of the upper and lower ventilation openings is not less than the effective area of the elevator car. 1%. At present, the single-layer car wall car structure of most elevators is as follows: figure 1 shown. The car is mainly divided into car top, car wall, and car bottom; due to the need for ventilation area, when the traditional car is assembled, a certain gap is left between the car wall and the car top and car bottom to ensure sufficient ventilation area. Larger gaps will cause shaft noise to be transmitted directly to the car through the gaps, resulting in poor ...
Claims
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Application Information
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