Noise reduction structure of high-speed elevator and use method of noise reduction structure

Abstract

The invention discloses a noise reduction structure of a high-speed elevator and a using method of the noise reduction structure. The noise reduction structure comprises an elevator shaft and a lift car which is arranged in the elevator shaft and can do up-down reciprocating high-speed motion in the elevator shaft, and a plurality of noise reduction mechanisms are arranged on the side, corresponding to a movable door of the lift car, of the elevator shaft and the two sides, corresponding to two adjacent side plates of the movable door, of the elevator shaft correspondingly; each noise reduction mechanism comprises a first noise reduction cavity, a second noise reduction cavity, a third noise reduction cavity, a fourth noise reduction cavity and a fifth noise reduction cavity, and a sixth noise reduction cavity is formed between every two adjacent noise reduction mechanisms. According to the noise reduction device, the multiple noise reduction mechanisms are arranged, high-speed gas generated during high-speed movement of the lift car is guided into the noise reduction mechanisms, and the high-speed gas is reflected through the first noise reduction cavity, the second noise reduction cavity, the third noise reduction cavity, the fourth noise reduction cavity, the fifth noise reduction cavity and the sixth noise reduction cavity; the reflected high-speed gas and the high-speed gas entering the noise reduction cavity interfere with each other, so that the flow speed of the high-speed gas is reduced, and the wind resistance noise generated when the lift car runs at a high speed is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of high-speed elevators, and more specifically, to a high-speed elevator noise reduction structure and a use method thereof. Background Art

[0002] Elevators can be divided into low-speed elevators (below 4 m / s), high-speed elevators (4-12 m / s) and ultra-high-speed elevators (above 12 m / s) according to their speed. When a high-speed elevator moves back and forth at high speed in the shaft, the gas is instantly compressed sharply. At the same time, the gas in the gap between the car body and the shaft suddenly increases in speed relative to the car body due to the sharp decrease in flow area, thus generating great wind resistance. These resistances act on the car to generate wind resistance noise.

[0003] Therefore, a new solution is needed to reduce the noise of elevators. Summary of the invention

[0004] The object of the present invention is to overcome the above-mentioned deficiencies of the prior art and to provide a high-speed elevator noise reduction structure and a method of using the same.

[0005] In order to achieve the above object, the present invention adopts the following technical solution:

[0006] A high-speed elevator noise reduction structure comprises an elevator shaft, and a car arranged in the elevator shaft and capable of reciprocating up and down in the elevator shaft at high speed, wherein a plurality of noise reduction mechanisms are provided on one side of the elevator shaft corresponding to a movable door of the car, and on both sides of the two adjacent side plates of the movable door, respectively, and the noise reduction mechanisms are arranged at intervals along the elevator shaft; the noise reduction mechanisms comprise a first noise reduction chamber, a second noise reduction chamber, a third noise reduction chamber, a fourth noise reduction chamber and a fifth noise reduction chamber, and a sixth noise reduction chamber is formed between two adjacent noise reduction mechanisms, and the first noise reduction chamber, the second noise reduction chamber, the third noise reduction chamber, the fourth noise reduction chamber, the fifth noise reduction chamber and the sixth noise reduction chamber are used for reducing the noise of high-speed gas generated around the car when the car moves at high speed.

[0007] Furthermore, the noise reduction mechanism includes two L-shaped protrusions extending toward the inside of the elevator shaft and bending toward the bottom of the elevator shaft, and two V-shaped protrusions and two inclined protrusions arranged between the two L-shaped protrusions, the two V-shaped protrusions are located below the two inclined protrusions, and the open ends of the two V-shaped protrusions are arranged opposite to each other, and the two inclined protrusions extend toward the inside of the elevator shaft and are arranged to be inclined downward, one of the L-shaped protrusions and one of the V-shaped protrusions surround a first noise reduction cavity, the two V-shaped protrusions surround a second noise reduction cavity, the other V-shaped protrusion and one of the inclined protrusions surround a third noise reduction cavity, the two inclined protrusions surround a fourth noise reduction cavity, the other inclined protrusion and the other L-shaped protrusion surround a fifth noise reduction cavity, and the L-shaped protrusions of two adjacent noise reduction mechanisms surround a sixth noise reduction cavity.

[0008] Furthermore, the L-shaped protrusion, the V-shaped protrusion and the inclined protrusion are long strip structures and are arranged horizontally.

[0009] Furthermore, a traction machine and a guide wheel are installed at the top of the elevator shaft, and a guide rail is provided in the elevator shaft along the movement direction of the car. A load-bearing block frame is slidably connected to the guide rail, and a load-bearing block is installed in the load-bearing block frame. A steel cable is connected to the top of the car, and the end of the steel cable is connected to the top of the load-bearing block frame after passing through the guide wheel and the traction wheel of the traction machine. The movement directions of the car and the load-bearing block frame are opposite to each other.

[0010] Furthermore, a top plate is installed at the top of the elevator shaft, and two through holes are opened on the top plate for the steel cables to pass through.

[0011] Furthermore, one end of the guide rail is connected to the bottom end of the elevator shaft, and the other end of the guide rail is connected to the bottom end of the top plate.

[0012] Furthermore, slide blocks are installed at both upper and lower ends of the load-bearing block frame, and the slide blocks are slidably connected to the guide rails.

[0013] The present invention also provides a method for using the high-speed elevator noise reduction structure, comprising the following steps:

[0014] Step S1, the high-speed movement of the car generates wind resistance, and the wind resistance forms high-speed gas in the gap between the car and the elevator shaft in the opposite direction of the car movement;

[0015] In step S2, part of the high-speed gas flows into the noise reduction mechanism, and the first noise reduction chamber, the second noise reduction chamber, the third noise reduction chamber, the fourth noise reduction chamber, the fifth noise reduction chamber and the sixth noise reduction chamber reflect the high-speed gas. The reflected high-speed gas interferes with the high-speed gas entering the noise reduction chamber, thereby reducing the flow rate of the high-speed gas and reducing the wind resistance noise generated when the car runs at high speed.

[0016] The beneficial effects of the present invention are:

[0017] 1. In the present invention, a plurality of noise reduction mechanisms are arranged on one side of the elevator shaft corresponding to the movable door of the car and on both sides of the two adjacent side plates of the movable door, respectively, so that the high-speed gas generated when the car moves at high speed is guided to the noise reduction mechanism, and the first noise reduction chamber, the second noise reduction chamber, the third noise reduction chamber, the fourth noise reduction chamber, the fifth noise reduction chamber and the sixth noise reduction chamber are used to reflect the high-speed gas, and the reflected high-speed gas interferes with the high-speed gas entering the noise reduction chamber, thereby reducing the flow velocity of the high-speed gas and reducing the wind resistance noise generated when the car runs at high speed.

[0018] 2. The present invention can be widely used in vertical elevators in buildings. The high-speed gas can be decelerated by the noise reduction mechanism, thereby reducing the noise generated during the operation of the elevator. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of a high-speed elevator noise reduction structure in this embodiment;

[0020] Figure 2 for Figure 1 Enlarged view of part A in the middle;

[0021] Figure 3 for Figure 1 Enlarged view of middle part B;

[0022] Figure 4 for Figure 1 Enlarged view of part C in the middle.

[0023] Figure numerals: elevator shaft 1, car 2, noise reduction mechanism 3, first noise reduction chamber 301, second noise reduction chamber 302, third noise reduction chamber 303, fourth noise reduction chamber 304, fifth noise reduction chamber 305, sixth noise reduction chamber 306, L-shaped protrusion 307, V-shaped protrusion 308, inclined protrusion 309, traction machine 4, traction wheel 401, guide wheel 5, guide rail 6, load-bearing block frame 7, load-bearing block 8, steel cable 9, top plate 10, slider 11, motor 12. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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.

[0025] Embodiment: A high-speed elevator noise reduction structure, such as Figure 1-Figure 4 As shown, it includes an elevator shaft 1, and a car 2 which is arranged in the elevator shaft 1 and can move up and down at high speed in the elevator shaft 1, wherein a traction machine 4 and a guide wheel 5 are installed at the top of the elevator shaft 1, the traction machine 4 is driven by a motor 12, and a traction wheel 401 is installed at the output end of the traction machine 4, and a guide rail 6 is provided in the elevator shaft 1 along the movement direction of the car 2, and a load-bearing block frame 7 is slidably connected to the guide rail 6, and a load-bearing block 8 is installed in the load-bearing block frame 7, and a steel cable 9 is connected to the top of the car 2, and the end of the steel cable 9 is connected to the top of the load-bearing block frame 7 after passing through the guide wheel 5 and the traction wheel 401 of the traction machine 4, and the movement directions of the car 2 and the load-bearing block frame 7 are opposite to each other.

[0026] Due to the gravity of the car 2 and the load-bearing frame 7, the steel cable 9 is pressed tightly in the wheel groove of the traction wheel 401, and friction is generated. When the motor 12 drives the traction machine 4 to operate and rotate the traction wheel 401, the traction wheel 401 drives the steel cable 9 to drag the car 2 and the load-bearing frame 7 to move relative to each other, that is, the car 2 rises and the load-bearing frame 7 falls, and the load-bearing frame 7 rises and the car 2 falls. The guide wheel 5 is used to separate the car 2 and the load-bearing frame 7, so that the car 2 and the load-bearing frame 7 can run along the elevator shaft 1 separately without rubbing against each other.

[0027] Furthermore, a top plate 10 is installed at the top of the elevator shaft 1, and two through holes (not shown) are opened on the top plate 10 for the steel cable 9 to pass through, one of the through holes corresponds to the car 2, and the other through hole corresponds to the load-bearing block frame 7.

[0028] One end of the guide rail 6 is connected to the elevator shaft 1, and the other end of the guide rail 6 is connected to the bottom end of the top plate 10. The above design is adopted to improve the stability of the guide rail 6 in operation.

[0029] Slide blocks 11 are installed at both upper and lower ends of the load-bearing block frame 7 , and the slide blocks 11 are slidably connected to the guide rail 6 , that is, the load-bearing block frame 7 slides on the guide rail 6 through the sliding cooperation between the slide blocks 11 and the guide rail 6 .

[0030] Furthermore, the elevator shaft 1 is provided with a plurality of noise reduction mechanisms 3 on one side of the movable door of the car 2 and on both sides of the adjacent two side panels of the movable door. Figure 1 As shown, a plurality of noise reduction mechanisms 3 are arranged on the left side, front side and rear side of the elevator shaft 1, and the noise reduction mechanisms 3 are arranged at intervals along the elevator shaft 1; when the car 2 moves at high speed, high-speed gas is generated around the car 2, and the high-speed gas enters the noise reduction mechanism 3 and is decelerated, thereby reducing the noise generated by the high-speed gas when the car 2 moves at high speed.

[0031] Among them, the noise reduction mechanism 3 includes a first noise reduction chamber 301, a second noise reduction chamber 302, a third noise reduction chamber 303, a fourth noise reduction chamber 304 and a fifth noise reduction chamber 305, and a sixth noise reduction chamber 306 is formed between two adjacent noise reduction mechanisms 3. The first noise reduction chamber 301, the second noise reduction chamber 302, the third noise reduction chamber 303, the fourth noise reduction chamber 304, the fifth noise reduction chamber 305 and the sixth noise reduction chamber 306 are used to reduce the noise of high-speed gas generated around the car 2 when the car 2 moves at high speed.

[0032] Specifically, the noise reduction mechanism 3 includes two L-shaped protrusions 307 extending toward the inside of the elevator shaft 1 and bending toward the bottom of the elevator shaft 1, and two V-shaped protrusions 308 and two inclined protrusions 309 arranged between the two L-shaped protrusions 307, wherein the two V-shaped protrusions 308 are located below the two inclined protrusions 309, and the open ends of the two V-shaped protrusions 308 are arranged opposite to each other, and the two inclined protrusions 309 extend toward the inside of the elevator shaft 1 and are arranged to be inclined downward, and one of the L-shaped protrusions 307 and one of the inclined protrusions 309 are arranged to be opposite to each other. V-shaped protrusions 308 surround a first noise reduction cavity 301, two V-shaped protrusions 308 surround a second noise reduction cavity 302, another V-shaped protrusion 308 and one of the inclined protrusions 309 surround a third noise reduction cavity 303, two inclined protrusions 309 surround a fourth noise reduction cavity 304, another inclined protrusion 309 and another L-shaped protrusion 307 surround a fifth noise reduction cavity 305, and the L-shaped protrusions 307 of two adjacent noise reduction mechanisms 3 surround a sixth noise reduction cavity 306. By providing the first noise reduction chamber 301, the second noise reduction chamber 302, the third noise reduction chamber 303, the fourth noise reduction chamber 304, the fifth noise reduction chamber 305 and the sixth noise reduction chamber 306, firstly, they play a role of guiding the high-speed gas to each noise reduction chamber; secondly, by reflecting and interfering with the high-speed gas guided into the noise reduction chamber, the flow velocity of the high-speed gas is reduced, thereby reducing the noise generated when the car 2 runs at high speed; thirdly, by utilizing the different structures of each noise reduction chamber and combining different reflection and interference paths and methods, the flow velocity of the high-speed gas is effectively reduced.

[0033] Preferably, the L-shaped protrusion 307 , the V-shaped protrusion 308 and the inclined protrusion 309 are long strip structures and are arranged horizontally.

[0034] When the car 2 moves at high speed, wind resistance will be generated, and the wind resistance forms high-speed gas in the gap between the car 2 and the elevator shaft 1 in the opposite direction of the movement of the car 2; part of the high-speed gas flows into the noise reduction mechanism 3, and the first noise reduction chamber 301, the second noise reduction chamber 302, the third noise reduction chamber 303, the fourth noise reduction chamber 304, the fifth noise reduction chamber 305 and the sixth noise reduction chamber 306 are used to reflect the high-speed gas, and the reflected high-speed gas interferes with the high-speed gas entering the noise reduction chamber, thereby reducing the flow rate of the high-speed gas and reducing the wind resistance noise generated when the car 2 runs at high speed.

[0035] The present invention also provides a method for using the high-speed elevator noise reduction structure, comprising the following steps:

[0036] Step S1, the high-speed movement of the car 2 generates wind resistance, and the wind resistance forms high-speed gas in the gap between the car 2 and the elevator shaft 1 in the opposite direction of the movement of the car 2;

[0037] In step S2, part of the high-speed gas flows into the noise reduction mechanism 3, and the first noise reduction chamber 301, the second noise reduction chamber 302, the third noise reduction chamber 303, the fourth noise reduction chamber 304, the fifth noise reduction chamber 305 and the sixth noise reduction chamber 306 reflect the high-speed gas. The reflected high-speed gas interferes with the high-speed gas entering the noise reduction chamber, thereby reducing the flow velocity of the high-speed gas and reducing the wind resistance noise generated when the car 2 runs at high speed.

[0038] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A high-speed elevator noise reduction structure, comprising an elevator shaft (1), and a car (2) arranged in the elevator shaft (1) and capable of reciprocating up and down in the elevator shaft (1) at high speed, characterized in that: The elevator shaft (1) is provided with a plurality of noise reduction mechanisms (3) on one side of a movable door of a car (2) and on both sides of adjacent side panels of the movable door, and the noise reduction mechanisms (3) are arranged at intervals along the elevator shaft (1); the noise reduction mechanisms (3) include a first noise reduction chamber (301), a second noise reduction chamber (302), a third noise reduction chamber (303), a fourth noise reduction chamber (304) and a fifth noise reduction chamber (305), and a sixth noise reduction chamber (306) is formed between two adjacent noise reduction mechanisms (3); the first noise reduction chamber (301), the second noise reduction chamber (302), the third noise reduction chamber (303), the fourth noise reduction chamber (304), the fifth noise reduction chamber (305) and the sixth noise reduction chamber (306) are used to reduce the noise of high-speed gas generated around the car (2) when the car (2) moves at high speed.

2. A high-speed elevator noise reduction structure according to claim 1, characterized in that: The noise reduction mechanism (3) comprises two L-shaped protrusions (307) extending toward the inside of the elevator shaft (1) and bent toward the bottom of the elevator shaft (1), and two V-shaped protrusions (308) and two inclined protrusions (309) arranged between the two L-shaped protrusions (307), the two V-shaped protrusions (308) being located below the two inclined protrusions (309), the open ends of the two V-shaped protrusions (308) being arranged opposite to each other, the two inclined protrusions (309) extending toward the inside of the elevator shaft (1) and being arranged to be inclined downward, one of the L-shaped protrusions (307) and one of the V-shaped protrusions (308) surround a first noise reduction cavity (301), two of the V-shaped protrusions (308) surround a second noise reduction cavity (302), another of the V-shaped protrusions (308) and one of the inclined protrusions (309) surround a third noise reduction cavity (303), two of the inclined protrusions (309) surround a fourth noise reduction cavity (304), another of the inclined protrusions (309) and another of the L-shaped protrusions (307) surround a fifth noise reduction cavity (305), and the L-shaped protrusions (307) of two adjacent noise reduction mechanisms (3) surround a sixth noise reduction cavity (306).

3. A high-speed elevator noise reduction structure according to claim 2, characterized in that: The L-shaped protrusion (307), the V-shaped protrusion (308) and the inclined protrusion (309) are long strip structures and are arranged horizontally.

4. A high-speed elevator noise reduction structure according to claim 1, characterized in that: A traction machine (4) and a guide wheel (5) are installed at the top of the elevator shaft (1); a guide rail (6) is provided in the elevator shaft (1) along the movement direction of the car (2); a load-bearing block frame (7) is slidably connected to the guide rail (6); a load-bearing block (8) is installed in the load-bearing block frame (7); a steel cable (9) is connected to the top of the car (2); an end of the steel cable (9) is connected to the top of the load-bearing block frame (7) after passing through the guide wheel (5) and the traction wheel (401) of the traction machine (4); and the movement directions of the car (2) and the load-bearing block frame (7) are opposite to each other.

5. A high-speed elevator noise reduction structure according to claim 4, characterized in that: A top plate (10) is installed at the top of the elevator shaft (1), and two through holes for the steel cable (9) to pass through are opened on the top plate (10).

6. A high-speed elevator noise reduction structure according to claim 4, characterized in that: One end of the guide rail (6) is connected to the bottom end of the elevator shaft (1), and the other end of the guide rail (6) is connected to the bottom end of the top plate (10).

7. A high-speed elevator noise reduction structure according to claim 4, characterized in that: Slide blocks (11) are installed at both upper and lower ends of the load-bearing block frame (7), and the slide blocks (11) are slidably connected to the guide rails (6).

8. A method for using the high-speed elevator noise reduction structure according to any one of claims 1 to 7, characterized in that: The steps include: Step S1, the high-speed movement of the car (2) generates wind resistance, and the wind resistance forms high-speed gas in the gap between the car (2) and the elevator shaft (1) in the opposite direction to the movement direction of the car (2); Step S2, part of the high-speed gas flows into the noise reduction mechanism (3), and the first noise reduction chamber (301), the second noise reduction chamber (302), the third noise reduction chamber (303), the fourth noise reduction chamber (304), the fifth noise reduction chamber (305) and the sixth noise reduction chamber (306) reflect the high-speed gas, and the reflected high-speed gas interferes with the high-speed gas entering the noise reduction chamber, thereby reducing the flow rate of the high-speed gas and reducing the wind resistance noise generated when the car (2) runs at high speed.

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