Noise reduction elevator car

Abstract

The invention relates to the technical field of elevator devices, and particularly discloses a noise reduction elevator car which comprises a car body provided with a car opening and closing door. The floor opening and closing door is arranged at the butt joint port of the floor; the vacuumizing device is arranged in the elevator shaft and is used for enabling the elevator shaft to form a negative pressure environment, so that the wind noise during the operation of the elevator is reduced; when the lift car body stops at the floor opening and closing door and the floor opening and closing door and the lift car body are both in the opening state, the connecting and sealing device isolates the butt joint area of the floor opening and closing door and the lift car body from an elevator shaft, and the connecting and sealing device seals the butt joint area of the floor opening and closing door and the lift car body. And the vacuum environment of the elevator shaft is prevented from being damaged when the car body stops. By arranging the vacuumizing device and the connecting and sealing device, the elevator shaft can be in a vacuum state, so that the noise is low when the elevator runs.

Description

Technical Field

[0001] The present application relates to the technical field of elevator devices, and in particular to a noise-reducing elevator car. Background Art

[0002] An elevator is a vertical lift powered by an electric motor and equipped with a box-shaped cabin. It is used to carry people or goods in multi-story buildings. A vertical elevator has a car that runs between at least two rows of vertical or rigid guide rails with an inclination angle of less than 15°. The size and structure of the car are convenient for passengers to enter and exit or load and unload goods. It is customary to use elevators as a general term for vertical transportation vehicles within buildings, regardless of their driving mode.

[0003] When using an elevator, the vibration generated during the operation of the elevator causes noise, which affects the users inside the elevator and other people on the floor. In order to reduce the noise hazards, the elevator is usually treated with noise reduction. Generally, noise reduction elevators are equipped with shock-absorbing springs and shock-absorbing layers, and noise reduction materials are added at the connection between the elevator car and the elevator rail to achieve shock and noise reduction of the elevator. However, this type of shock and noise reduction is mainly used for external noise reduction. The main purpose is to reduce the impact of noise on other people outside the floor, but the effect on the users inside the elevator is small and still has a large impact. Summary of the invention

[0004] The present application provides a noise-reducing elevator car, which solves the technical problem that the vibration generated during the operation of the elevator in the prior art causes noise, while the current noise reduction effect of the elevator is not good, and achieves the technical effect of forming a negative pressure environment in the elevator shaft, thereby reducing the wind noise during the operation of the elevator.

[0005] The present application provides a noise reduction elevator car, comprising: A car body, wherein a car opening and closing door is arranged on the car body; A floor switch door, wherein the floor switch door is arranged at the interface of the floor; A vacuum device, which is arranged in the elevator shaft and is used to form a negative pressure environment in the elevator shaft, thereby reducing wind noise during the operation of the elevator; A car sealing device, the car sealing device is used to seal the car body when the car body is in operation; A floor opening sealing device, wherein the floor opening sealing device is used to close the floor switch door when the car body is running, so that the contact area between the floor switch door and the elevator shaft is sealed; Connecting and sealing device. When the car body stops at the floor for door opening and closing, and both the floor door and the car body are in the open state, the connecting and sealing device isolates the docking area between the floor door and the car body from the elevator shaft, preventing the vacuum environment of the elevator shaft from being damaged when the car body stops. The connecting and sealing device includes a rectangular sealing cylinder. The rectangular sealing cylinder is sleeved outside the car door. The car body is connected with a connecting and sealing cylinder, and the output end of the connecting and sealing cylinder is connected to the rectangular sealing cylinder. One end of the rectangular sealing cylinder faces the inner wall of the elevator shaft, and the other end is connected with a rectangular ring-shaped sealing ring. A sealing gasket is arranged on the inner surface of the sealing ring, and the moving track of the sealing ring passes through the outer wall of the car body.

[0006] Further, the car door includes a left car door and a right car door, and side flat plates are respectively arranged on both sides of the car body.

[0007] Further, the car sealing device includes a first sealing plate and a second sealing plate. The first sealing plate is arranged in parallel on the outer side of the left car door and is connected to the left car door through a bracket. The second sealing plate is arranged in parallel on the outer side of the right car door and is connected to the right car door through a bracket. The size of the first sealing plate is larger than that of the left car door, and the right end of the first sealing plate is flush with the right end of the left car door. The size of the second sealing plate is larger than that of the right car door, and the left end of the second sealing plate is flush with the left end of the right car door.

[0008] Further, a first C-shaped plate is arranged on the left side of the first sealing plate, and a first inverted C-shaped plate is arranged on the right side of the second sealing plate. When the left car door and the right car door are fitted together, the first C-shaped plate and the first inverted C-shaped plate are fitted together to form a complete rectangular frame. The first sealing plate is connected with a first telescopic cylinder, and the first telescopic cylinder is connected to the first C-shaped plate. The second sealing plate is connected with a second telescopic cylinder, and the second telescopic cylinder is connected to the first inverted C-shaped plate.

[0009] Further, one end of the first C-shaped plate faces the side flat plate, and the other end is connected with a first pressing flat plate. The moving track of the first pressing flat plate passes through the edge of the first sealing plate, and a pressing sealing gasket is arranged on the inner surface of the first pressing flat plate. One end of the first inverted C-shaped plate faces the side flat plate, and the other end is connected to a second pressing flat plate. The moving track of the second pressing flat plate passes through the edge of the second sealing plate, and a pressing sealing gasket is arranged on the inner surface of the second pressing flat plate.

[0010] Further, the floor switch door includes a left floor door and a right floor door.

[0011] Further, the layer opening sealing device includes a third sealing plate and a fourth sealing plate. The third sealing plate is arranged in parallel on the outer side of the left floor door, and the third sealing plate is connected to the left floor door through a bracket. The fourth sealing plate is arranged in parallel on the outer side of the right floor door, and the fourth sealing plate is connected to the right floor door through a bracket; The size of the third sealing plate is larger than that of the left floor door, and the right end of the third sealing plate is flush with the right end of the left floor door. The size of the fourth sealing plate is larger than that of the right floor door, and the left end of the fourth sealing plate is flush with the left end of the right floor door.

[0012] Further, a second C-shaped plate is arranged on the left side of the third sealing plate, and a second inverted C-shaped plate is arranged on the right side of the fourth sealing plate. When the left floor door and the right floor door are attached together, the second C-shaped plate and the second inverted C-shaped plate are attached together to form a complete rectangular frame; The third sealing plate is connected to a third telescopic cylinder, and the third telescopic cylinder is connected to the second C-shaped plate. The fourth sealing plate is connected to a fourth telescopic cylinder, and the fourth telescopic cylinder is connected to the second inverted C-shaped plate.

[0013] Further, one end of the second C-shaped plate faces the inner wall of the elevator shaft, and the other end is connected to a third pressing flat plate. The moving track of the third pressing flat plate passes through the edge of the third sealing plate, and a pressing sealing gasket is arranged on the inner surface of the third pressing flat plate; One end of the second inverted C-shaped plate faces the inner wall of the elevator shaft, and the other end is connected to a fourth pressing flat plate. The moving track of the fourth pressing flat plate passes through the edge of the fourth sealing plate, and a pressing sealing gasket is arranged on the inner surface of the fourth sealing plate.

[0014] The technical solution provided by this application has at least the following technical effects or advantages: By setting a vacuum pumping device in the present invention, a negative pressure environment can be formed in the elevator shaft, thereby reducing the wind noise during elevator operation. At the same time, by setting a connection sealing device, when the car body stops at the floor switch door and both the floor switch door and the car body are in the open state, the connection sealing device isolates the docking area of the floor switch door and the car body from the elevator shaft, preventing the vacuum environment of the elevator shaft from being damaged when the car body stops. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the noise reduction elevator car in the embodiment of the present application; Figure 2 This is a structural schematic diagram of a car body and a connecting sealing device in an embodiment of the present application; Figure 3 This is a schematic diagram of the structure of the car door opening and closing in the embodiment of the present application; Figure 4 This is a schematic diagram of another perspective of the car door opening and closing in the embodiment of the present application; Figure 5 This is a schematic diagram of the structure of the connection sealing device in the embodiment of the present application; Figure 6 This is another perspective schematic diagram of the connection sealing device in the embodiment of the present application; Figure 7 This is a schematic diagram of the structure of the car sealing device in the embodiment of the present application; Figure 8 This is a schematic diagram of the structure of the middle opening sealing device in the embodiment of the present application; Fig. 9 This is a schematic diagram of another viewing angle of the layer opening sealing device in the embodiment of the present application; Fig.10 This is a schematic diagram from another perspective of the middle opening sealing device in an embodiment of the present application.

[0016] In the figure: 1. Car body; 2. Car opening and closing door; 3. Floor opening and closing door; 4. Vacuum extraction device; 5. Connection sealing device; 6. Car sealing device; 7. Floor opening sealing device; 201, left car door; 202, right car door; 203, side plate; 204, first fixed plate; 205, first sliding groove; 206, first sliding seat; 207, second fixed plate; 208, second sliding groove; 209, second sliding seat; 210, third fixed plate; 211, third sliding groove; 212, third sliding seat; 213, fourth fixed plate; 214, fourth sliding groove; 215, fourth sliding seat; 301, left floor door; 302, right floor door; 303, fifth fixing plate; 304, fifth sliding groove; 305, fifth sliding seat; 306, sixth fixing plate; 307, sixth sliding groove; 308, sixth sliding seat; 309, seventh fixing plate; 310, seventh sliding groove; 311, seventh sliding seat; 312, eighth fixing plate; 313, eighth sliding groove; 314, eighth sliding seat; 501, rectangular sealing cylinder; 502, connecting sealing cylinder; 503, sealing ring; 601. First sealing plate; 602. Second sealing plate; 603. First C-shaped plate; 604. First reverse C-shaped plate; 605. First telescopic cylinder; 606. Second telescopic cylinder; 607. First pressing flat plate; 608. Second pressing flat plate; 701. Third sealing plate; 702. Fourth sealing plate; 703. Second C-shaped plate; 704. Second reverse C-shaped plate; 705. Third telescopic cylinder; 706. Fourth telescopic cylinder; 707. Third pressing flat plate; 708. Fourth pressing flat plate. Detailed implementation mode

[0017] An embodiment of the present application discloses a noise-reducing elevator car. By setting the vacuum pumping device 4, a negative pressure environment can be formed in the elevator shaft, thereby reducing the wind noise during elevator operation. At the same time, by setting the floor opening sealing device 7, when the car body 1 is running, the floor switch door 3 is closed, so that the contact area between the floor switch door 3 and the elevator shaft is sealed. By setting the car sealing device 6, when the car body 1 is running, the car body 1 can be sealed. And by setting the connection sealing device 5, when the car body 1 stops at the floor switch door 3 and both the floor switch door 3 and the car body 1 are in the open state, the connection sealing device 5 isolates the docking area of the floor switch door 3 and the car body 1 from the elevator shaft, preventing the vacuum environment of the elevator shaft from being damaged when the car body 1 stops.

[0018] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the specification drawings and specific implementation modes.

[0019] Refer to Figures 1 to 10 , a noise-reducing elevator car provided by the present invention includes a car body 1, a floor switch door 3 and a vacuum pumping device 4. A car switch door 2 is provided on the car body 1. The floor switch door 3 is arranged at the docking port of the floor. The vacuum pumping device 4 is arranged in the elevator shaft and is used to form a negative pressure environment in the elevator shaft, thereby reducing the wind noise during elevator operation.

[0020] There is a vacuum elevator in the prior art. This kind of vacuum elevator is an elevator that uses the air pressure difference to provide power. The vacuum elevator uses a vacuum pump to form a vacuum above the car. The lower part of the car is connected to the atmosphere and is at atmospheric pressure. The two are sealed through the sealing ring at the top of the car.

[0021] The operation of the vacuum elevator includes two stages: upward and downward. When the vacuum elevator is in the upward stage: first, the air above the car is pumped out by the vacuum pump, so that the air pressure in the space above the car becomes smaller, and the pressure difference with the lower part of the car increases. Under the action of the pressure difference, the car overcomes gravity, friction, etc. and moves upward at a set speed; When the vacuum elevator is in the downward stage: the vacuum valve connected to the space above the car opens, releasing some air into the space above the car. The air pressure in the space above the car increases, and the pressure difference with the space below the car decreases. Under the combined effect of pressure difference, gravity and friction, the car descends at the set speed.

[0022] The control system controls the vacuum pump's pumping speed and the vacuum valve's opening to achieve stable upward and downward movement: When the car is about to reach the target floor, the positioning sensor (such as a laser ranging sensor) on the guide rail or the shaft receives a signal and feeds it back to the control system. The control system issues a command to adjust the vacuum pump's pumping speed or the vacuum valve's opening, and then adjusts the vacuum zone's air pressure to achieve decelerated operation of the car. When the car reaches the target floor's stop position, the leveling mechanism operates to allow the car to stably stop at the designated position. At this point, the elevator shaft door can be opened, and passengers can enter and exit the elevator.

[0023] The noise reduction elevator car in this embodiment is mainly based on the vacuum elevator in the prior art, and is designed and improved on this basis.

[0024] The noise reduction elevator car of this embodiment is provided with a vacuum pumping device 4. When the car body 1 is running in the elevator shaft, the vacuum pumping device 4 extracts the air in the elevator shaft in advance, so that the elevator shaft is in a negative pressure state, thereby making the car body 1 run in a negative pressure or even vacuum state, thereby reducing the interference of air resistance on the operation of the elevator and reducing the wind noise during the operation of the elevator.

[0025] Since there is a pressure difference between the air pressure in the elevator shaft and the normal atmospheric pressure outside and the car body 1, it is necessary to keep the elevator shaft and the car body 1 sealed.

[0026] Therefore, the noise reduction elevator car of the present embodiment includes a car sealing device 6, and the car sealing device 6 is used to seal the car body 1 when the car body 1 is in operation.

[0027] For ease of understanding, refer to Figure 3 and Figure 4 In this embodiment, the specific structure of the car switch door 2 is first described. The car switch door 2 includes a left car door 201 and a right car door 202. Side plates 203 are respectively provided on both sides of the car body 1. A first fixed plate 204 is provided above the left car door 201. A first sliding groove 205 is provided on the lower surface of the first fixed plate 204. A first sliding seat 206 is slidably provided in the first sliding groove 205. The first sliding seat 206 is connected to the top of the left car door 201. A second fixed plate 207 is provided below the left car door 201. A second sliding groove 208 is provided on the lower surface of the second fixed plate 207. A second sliding seat 209 is slidably provided in the second sliding groove 208. The second sliding seat 209 is connected to the bottom end of the left car door 201.

[0028] Refer to Figure 3 and Figure 4 , above the right car door 202, a third fixing plate 210 is provided. A third sliding groove 211 is provided on the lower surface of the third fixing plate 210. A third sliding seat 212 is slidably arranged in the third sliding groove 211. The third sliding seat 212 is connected to the top end of the right car door 202. Below the right car door 202, a fourth fixing plate 213 is provided. A fourth sliding groove 214 is provided on the lower surface of the fourth fixing plate 213. A fourth sliding seat 215 is slidably arranged in the fourth sliding groove 214. The fourth sliding seat 215 is connected to the bottom end of the right car door 202.

[0029] Further, refer to Figure 7 , the car sealing device 6 includes a first sealing plate 601 and a second sealing plate 602. The first sealing plate 601 is arranged in parallel on the outer side of the left car door 201. The first sealing plate 601 is connected to the left car door 201 through a bracket. The second sealing plate 602 is arranged in parallel on the outer side of the right car door 202. The second sealing plate 602 is connected to the right car door 202 through a bracket. The size of the first sealing plate 601 is larger than that of the left car door 201 and the right end of the first sealing plate 601 is flush with the right end of the left car door 201. The size of the second sealing plate 602 is larger than that of the right car door 202 and the left end of the second sealing plate 602 is flush with the left end of the right car door 202.

[0030] Further, refer to Figure 7 , on the left side of the first sealing plate 601, a first C-shaped plate 603 is provided. On the right side of the second sealing plate 602, a first reverse C-shaped plate 604 is provided. When the left car door 201 and the right car door 202 are attached together, the first C-shaped plate 603 and the first reverse C-shaped plate 604 are attached together to form a complete rectangular frame. The first sealing plate 601 is connected with a first telescopic cylinder 605. The first telescopic cylinder 605 is connected to the first C-shaped plate 603. The second sealing plate 602 is connected with a second telescopic cylinder 606. The second telescopic cylinder 606 is connected to the first reverse C-shaped plate 604.

[0031] Among them, one end of the first C-shaped plate 603 faces the side flat plate 203, and the other end is connected with a first pressing flat plate 607. The moving track of the first pressing flat plate 607 passes through the edge of the first sealing plate 601. A pressing sealing pad is arranged on the inner surface of the first pressing flat plate 607. One end of the first reverse C-shaped plate 604 faces the side flat plate 203, and the other end is connected with a second pressing flat plate 608. The moving track of the second pressing flat plate 608 passes through the edge of the second sealing plate 602. A pressing sealing pad is arranged on the inner surface of the second pressing flat plate 608.

[0032] When the car body 1 closes its door, it will drive the first sealing plate 601 and the second sealing plate 602 to close together. At the same time, it will also make the first C-shaped plate 603 and the first inverted C-shaped plate 604 close together. Sealing gaskets are provided on the opposite surfaces of the first C-shaped plate 603 and the first inverted C-shaped plate 604. After the first C-shaped plate 603 and the first inverted C-shaped plate 604 are closed, they can be connected as a whole. Then, the first telescopic cylinder 605 and the second telescopic cylinder 606 extend synchronously. The first telescopic cylinder 605 drives the first C-shaped plate 603 to lean against the side flat plate 203, and at the same time drives the first pressing flat plate 607 to lean against the first sealing plate 601. When the first C-shaped plate 603 presses on the side flat plate 203 and makes a sealed contact, the first pressing flat plate 607 also presses on the first sealing plate 601.

[0033] Similarly, the second telescopic cylinder 606 drives the first inverted C-shaped plate 604 to lean against the side flat plate 203, and at the same time drives the second pressing flat plate 608 to lean against the second sealing plate 602. When the first C-shaped plate 603 presses on the side flat plate 203 and makes a sealed contact, the second pressing flat plate 608 also presses on the second sealing plate 602. At this time, the first sealing plate 601, the second sealing plate 602, the first C-shaped plate 603, the first inverted C-shaped plate 604, the first pressing flat plate 607 and the second pressing flat plate 608 together form a semi-sealing cover. This semi-sealing cover fits on the side flat plate 203 to cover the outlet of the car body 1, thereby realizing the sealing treatment of the car body 1.

[0034] Furthermore, referring to Figure 8 、 Fig. 9 and Fig.10 The noise-reducing elevator car of this embodiment includes a landing sealing device 7. The landing sealing device 7 is used to seal the landing door 3 when the car body 1 is running, so that the contact area between the landing door 3 and the elevator shaft is sealed.

[0035] Specifically, referring to Fig. 9 and Fig.10 The landing door 3 includes a left landing door 301 and a right landing door 302. A fifth fixing plate 303 is provided above the left landing door 301. A fifth sliding groove 304 is provided on the lower surface of the fifth fixing plate 303. A fifth sliding seat 305 is slidably arranged in the fifth sliding groove 304. The fifth sliding seat 305 is connected to the top end of the left landing door 301. A sixth fixing plate 306 is provided below the left landing door 301. A sixth sliding groove 307 is provided on the lower surface of the sixth fixing plate 306. A sixth sliding seat 308 is slidably arranged in the sixth sliding groove 307. The sixth sliding seat 308 is connected to the bottom end of the left landing door 301.

[0036] Referring to Fig. 9 and Fig.10, above the right floor door 302, a seventh fixing plate 309 is provided. On the lower surface of the seventh fixing plate 309, a seventh sliding groove 310 is provided. A seventh sliding seat 311 is slidably arranged in the seventh sliding groove 310. The seventh sliding seat 311 is connected to the top end of the right floor door 302. Below the right floor door 302, an eighth fixing plate 312 is provided. On the lower surface of the eighth fixing plate 312, an eighth sliding groove 313 is provided. An eighth sliding seat 314 is slidably arranged in the eighth sliding groove 313. The eighth sliding seat 314 is connected to the bottom end of the right floor door 302.

[0037] Further, referring to Figure 8 , the layer opening sealing device 7 includes a third sealing plate 701 and a fourth sealing plate 702. The third sealing plate 701 is arranged in parallel on the outer side of the left floor door 301. The third sealing plate 701 is connected to the left floor door 301 through a bracket. The fourth sealing plate 702 is arranged in parallel on the outer side of the right floor door 302. The fourth sealing plate 702 is connected to the right floor door 302 through a bracket. The size of the third sealing plate 701 is larger than that of the left floor door 301 and the right end of the third sealing plate 701 is flush with the right end of the left floor door 301. The size of the fourth sealing plate 702 is larger than that of the right floor door 302 and the left end of the fourth sealing plate 702 is flush with the left end of the right floor door 302.

[0038] Referring to Figure 8 , on the left side of the third sealing plate 701, a second C-shaped plate 703 is provided. On the right side of the fourth sealing plate 702, a second inverted C-shaped plate 704 is provided. When the left floor door 301 and the right floor door 302 are fitted together, the second C-shaped plate 703 and the second inverted C-shaped plate 704 are fitted together to form a complete rectangular frame. The third sealing plate 701 is connected with a third telescopic cylinder 705. The third telescopic cylinder 705 is connected to the second C-shaped plate 703. The fourth sealing plate 702 is connected with a fourth telescopic cylinder 706. The fourth telescopic cylinder 706 is connected to the second inverted C-shaped plate 704.

[0039] One end of the second C-shaped plate 703 faces the inner wall of the elevator shaft, and the other end is connected with a third pressing flat plate 707. The moving track of the third pressing flat plate 707 passes through the edge of the third sealing plate 701. A pressing sealing pad is arranged on the inner surface of the third pressing flat plate 707. One end of the second inverted C-shaped plate 704 faces the inner wall of the elevator shaft, and the other end is connected with a fourth pressing flat plate 708. The moving track of the fourth pressing flat plate 708 passes through the edge of the fourth sealing plate 702. A pressing sealing pad is arranged on the inner surface of the fourth sealing plate 702.

[0040] When the floor door 3 closes, it drives the third sealing plate 701 and the fourth sealing plate 702 to close together. At the same time, it also causes the second U-shaped plate 703 and the second inverted U-shaped plate 704 to close together. Sealing gaskets are provided on the opposite surfaces of the second U-shaped plate 703 and the second inverted U-shaped plate 704. After the second U-shaped plate 703 and the second inverted U-shaped plate 704 are closed, they can be connected as a whole.

[0041] Then, the third telescopic cylinder 705 and the fourth telescopic cylinder 706 extend synchronously. The third telescopic cylinder 705 drives the second U-shaped plate 703 to lean against the inner wall of the elevator shaft, and at the same time drives the third pressing flat plate 707 to lean against the third sealing plate 701. When the second U-shaped plate 703 presses against the inner wall of the elevator shaft and is in sealed contact, the third pressing flat plate 707 also presses on the third sealing plate 701.

[0042] Similarly, the fourth telescopic cylinder 706 drives the second inverted U-shaped plate 704 to lean against the inner wall of the elevator shaft, and at the same time drives the fourth pressing flat plate 708 to lean against the fourth sealing plate 702. When the second U-shaped plate 703 presses against the inner wall of the elevator shaft and is in sealed contact, the fourth pressing flat plate 708 also presses on the fourth sealing plate 702. At this time, the third sealing plate 701, the fourth sealing plate 702, the second U-shaped plate 703, the second inverted U-shaped plate 704, the third pressing flat plate 707 and the fourth pressing flat plate 708 together form a semi-sealing cover. This semi-sealing cover fits on the inner wall of the elevator shaft and covers the floor opening, thus realizing the sealing treatment of the elevator shaft.

[0043] Furthermore, referring to Figure 5 and Figure 6 The noise-reducing elevator car of this embodiment includes a connection sealing device 5. When the car body 1 stops at the floor door 3 and both the floor door 3 and the car body 1 are in the open state, the connection sealing device 5 isolates the docking area between the floor door 3 and the car body 1 from the elevator shaft, preventing the vacuum environment of the elevator shaft from being damaged when the car body 1 stops.

[0044] Specifically, referring to Figure 5 and Figure 6 The connection sealing device 5 includes a rectangular sealing cylinder 501. The rectangular sealing cylinder 501 is sleeved outside the car door 2. The car body 1 is connected with a connection sealing cylinder 502. The output end of the connection sealing cylinder 502 is connected to the rectangular sealing cylinder 501. One end of the rectangular sealing cylinder 501 faces the inner wall of the elevator shaft, and the other end is connected with a rectangular ring-shaped sealing ring 503. Sealing gaskets are provided on the inner surface of the sealing ring 503. The moving track of the sealing ring 503 passes through the outer wall of the car body 1.

[0045] When the elevator stops and is about to open, after the car body 1 is aligned with the corresponding floor switch door 3, the output end of the connecting sealing cylinder 502 is extended, driving the rectangular sealing tube 501 against the inner wall of the elevator shaft, and at the same time driving the sealing ring 503 against the inner surface of the side plate 203. When the rectangular sealing tube 501 is pressed against the inner wall of the elevator shaft and sealed, the sealing ring 503 is also pressed against the inner surface of the side plate 203. At this time, the rectangular sealing tube 501 and the sealing ring 503 together constitute a sealed connection structure, so that the car body 1 is sealedly connected with the inner wall of the elevator shaft near the floor switch door 3, so that the subsequent opening of the floor switch door 3 and the car switch door 2 will not affect the negative pressure environment of the elevator shaft.

[0046] To summarize, the noise reduction elevator car of the present embodiment can form a negative pressure environment in the elevator shaft by providing a vacuum pumping device 4, thereby reducing the wind noise during the operation of the elevator. At the same time, by providing a floor opening sealing device 7, when the car body 1 is running, the floor switch door 3 is closed to seal the contact area between the floor switch door 3 and the elevator shaft. By providing a car sealing device 6, the car body 1 can be sealed when the car body 1 is running. Moreover, by providing a connecting sealing device 5, when the car body 1 is parked at the floor switch door 3 and the floor switch door 3 and the car body 1 are both in an open state, the connecting sealing device 5 isolates the docking area between the floor switch door 3 and the car body 1 from the elevator shaft to prevent the vacuum environment of the elevator shaft from being destroyed when the car body 1 is parked.

[0047] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

[0048] What has been described above is only a preferred specific implementation manner of the embodiments of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes according to the technical scheme and concept of the present application within the technical scope disclosed in the present application, which should be covered by the protection scope of the present application.

Claims

1. A noise reduction elevator car, characterized in that: include: A car body (1), wherein a car opening and closing door (2) is provided on the car body (1); A floor switch door (3), wherein the floor switch door (3) is arranged at a docking interface of the floor; A vacuum device (4), the vacuum device (4) being arranged in the elevator shaft and used to create a negative pressure environment in the elevator shaft, thereby reducing wind noise during elevator operation; A car sealing device (6), the car sealing device (6) being used to seal the car body (1) when the car body (1) is in operation; A floor opening sealing device (7), the floor opening sealing device (7) being used to close the floor opening and closing door (3) when the car body (1) is in operation, so that the contact area between the floor opening and closing door (3) and the elevator shaft is sealed; A connecting sealing device (5) is provided, wherein when the car body (1) is parked at the floor switch door (3) and the floor switch door (3) and the car body (1) are both in an open state, the connecting sealing device (5) isolates the docking area of ​​the floor switch door (3) and the car body (1) from the elevator shaft, thereby preventing the car body (1) from damaging the vacuum environment of the elevator shaft when it is parked; The connection sealing device (5) comprises a rectangular sealing cylinder (501), the rectangular sealing cylinder (501) being sleeved on the outside of the car switch door (2), the car body (1) being connected to a connection sealing cylinder (502), the output end of the connection sealing cylinder (502) being connected to the rectangular sealing cylinder (501), one end of the rectangular sealing cylinder (501) facing the inner wall of the elevator shaft, and the other end being connected to a rectangular annular sealing ring (503), the inner surface of the sealing ring (503) being provided with a sealing gasket, and the moving track of the sealing ring (503) passing through the outer wall of the car body (1).

2. A noise reduction elevator car according to claim 1, characterized in that: The car opening and closing door (2) comprises a left car door (201) and a right car door (202), and side plates (203) are respectively provided on both sides of the car body (1).

3. A noise reduction elevator car according to claim 2, characterized in that: The car sealing device (6) comprises a first sealing plate (601) and a second sealing plate (602), wherein the first sealing plate (601) is arranged in parallel on the outer side of the left car door (201), and the first sealing plate (601) is connected to the left car door (201) via a bracket, and the second sealing plate (602) is arranged in parallel on the outer side of the right car door (202), and the second sealing plate (602) is connected to the right car door (202) via a bracket; The size of the first sealing plate (601) is larger than the size of the left car door (201), and the right end of the first sealing plate (601) is flush with the right end of the left car door (201), and the size of the second sealing plate (602) is larger than the size of the right car door (202), and the left end of the second sealing plate (602) is flush with the left end of the right car door (202).

4. A noise reduction elevator car according to claim 3, characterized in that: A first C-shaped plate (603) is provided on the left side of the first sealing plate (601), and a first reverse C-shaped plate (604) is provided on the right side of the second sealing plate (602). When the left car door (201) and the right car door (202) are fitted together, the first C-shaped plate (603) and the first reverse C-shaped plate (604) are fitted together to form a complete rectangular frame; The first sealing plate (601) is connected to a first telescopic cylinder (605), the first telescopic cylinder (605) is connected to the first C-shaped plate (603), the second sealing plate (602) is connected to a second telescopic cylinder (606), and the second telescopic cylinder (606) is connected to the first reverse C-shaped plate (604).

5. A noise reduction elevator car according to claim 4, characterized in that: One end of the first C-shaped plate (603) faces the side flat plate (203), and the other end is connected to a first pressing flat plate (607). The moving track of the first pressing flat plate (607) passes through the edge of the first sealing plate (601), and a pressing gasket is provided on the inner surface of the first pressing flat plate (607); One end of the first reverse C-shaped plate (604) faces the side flat plate (203), and the other end is connected to a second pressing flat plate (608). The moving track of the second pressing flat plate (608) passes through the edge of the second sealing plate (602), and a pressing gasket is provided on the inner surface of the second pressing flat plate (608).

6. A noise reduction elevator car according to claim 1, characterized in that: The floor door opening / closing device (3) includes a left floor door (301) and a right floor door (302).

7. A noise reduction elevator car according to claim 6, characterized in that: The layer opening sealing device (7) includes a third sealing plate (701) and a fourth sealing plate (702). The third sealing plate (701) is arranged in parallel on the outer side of the left floor door (301), and the third sealing plate (701) is connected to the left floor door (301) through a bracket. The fourth sealing plate (702) is arranged in parallel on the outer side of the right floor door (302), and the fourth sealing plate (702) is connected to the right floor door (302) through a bracket; The size of the third sealing plate (701) is larger than the size of the left floor door (301), and the right end of the third sealing plate (701) is flush with the right end of the left floor door (301). The size of the fourth sealing plate (702) is larger than the size of the right floor door (302), and the left end of the fourth sealing plate (702) is flush with the left end of the right floor door (302).

8. A noise reduction elevator car according to claim 7, characterized in that: A second C-shaped plate (703) is provided on the left side of the third sealing plate (701), and a second reverse C-shaped plate (704) is provided on the right side of the fourth sealing plate (702). When the left floor door (301) and the right floor door (302) are fitted together, the second C-shaped plate (703) and the second reverse C-shaped plate (704) are fitted together to form a complete rectangular frame; The third sealing plate (701) is connected to a third telescopic cylinder (705), the third telescopic cylinder (705) is connected to the second C-shaped plate (703), the fourth sealing plate (702) is connected to a fourth telescopic cylinder (706), and the fourth telescopic cylinder (706) is connected to the second inverted C-shaped plate (704).

9. A noise reduction elevator car according to claim 8, characterized in that: One end of the second C-shaped plate (703) faces the inner wall of the elevator shaft, and the other end is connected to a third pressing flat plate (707). The movement track of the third pressing flat plate (707) passes through the edge of the third sealing plate (701), and a pressing gasket is arranged on the inner surface of the third pressing flat plate (707); One end of the second inverted C-shaped plate (704) faces the inner wall of the elevator shaft, and the other end is connected to a fourth pressing flat plate (708). The movement track of the fourth pressing flat plate (708) passes through the edge of the fourth sealing plate (702), and a pressing gasket is arranged on the inner surface of the fourth sealing plate (702).

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