Noise reduction mechanism of elevator car

Abstract

The utility model relates to the technical field of elevators, and discloses a noise reduction mechanism of an elevator car, which comprises an elevator car body, a top plate is fixedly connected outside the elevator car body, a plurality of fixing mechanisms are fixedly connected outside the top plate, a plurality of sound insulation plates are fixedly connected outside the elevator car body, and the sound insulation plates are fixedly connected outside the elevator car body. The bottom of the elevator car body is fixedly connected with a damping mechanism, the fixing mechanism comprises a fixing shaft, and the outer portion of the fixing shaft is rotationally connected with a first rotating plate. According to the elevator sound insulation device, the first rotating plate is pressed to extrude the first telescopic rod through the clamping rod, then the first spring can deform in the extrusion process, the sound insulation plate can be stably clamped outside the elevator car body, and the sound insulation plate is detachable, so that the maintenance of sound insulation materials is facilitated. And the state of the sound insulation material is checked regularly, such as aging, abrasion, damp and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to elevator technical field especially relates to a noise reduction mechanism of elevator car. BACKGROUND

[0002] In high-rise residential, elevator runs frequently. Residents when taking the elevator, hope to have a quiet comfortable environment. Noise reduction mechanism effectively reduces the motor running sound, guide rail friction sound and air flow sound generated in the process of car operation. For example, when the elevator rises or falls quickly in the shaft, the friction between the car and the air will produce a howling sound, and the noise reduction mechanism can reduce this noise by optimizing the car shape design and adding sound-absorbing material in the car wall to provide a quiet elevator experience for residents.

[0003] In the prior art, the size and shape of part of the elevator car are measured and cut to ensure that the sound insulation board can completely cover the area that needs sound insulation, and the sound insulation board is fixed on the inner wall of the elevator car by using appropriate installation method. Including using glue, screw, rivet or other fixing parts. Ensure that the sound insulation board is installed firmly and will not loosen or fall off.

[0004] But in the specific use process, the sound insulation board cannot be disassembled and is not conducive to check the sound insulation material behind it. With the passage of time, the sound insulation material will be aged, damp, damaged and other conditions. It is difficult to find these problems and replace the damaged sound insulation material in time when the sound insulation board cannot be disassembled, so that the sound insulation effect gradually decreases, therefore, in view of the above problems, the noise reduction mechanism of elevator car is provided. UTILITY MODEL CONTENT

[0005] In order to make up for the above shortcomings, the utility model provides a noise reduction mechanism of elevator car, which aims at improving the problem that part of the device in the prior art cannot install and disassemble the sound insulation board.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A noise reduction mechanism of elevator car, comprising an elevator car body, a top plate fixedly connected to the outside of the elevator car body, a plurality of fixing mechanisms fixedly connected to the outside of the top plate, a plurality of sound insulation boards fixedly connected to the outside of the elevator car body, and a damping mechanism fixedly connected to the bottom of the elevator car body.

[0008] The fixing mechanism comprises a fixed shaft, a rotating plate one rotatably connected to the outside of the fixed shaft, a clamping rod fixedly connected to the outside of the rotating plate one, a telescopic rod one fixedly connected to the outside of the rotating plate one, a elastic component sleeved on the outside of the telescopic rod one, and the outside of the clamping rod is clamped with the outside of the sound insulation board, and the outside of the fixed shaft is fixedly connected to the outside of the top plate.

[0009] As a further description of the above technical solutions:

[0010] The elastic component comprises a spring one, one end of the spring one is fixedly connected to the outside of the rotating plate one, and the other end of the spring one is fixedly connected to the outside of the top plate.

[0011] As a further description of the above technical solutions:

[0012] The damping mechanism comprises a plurality of connecting rods, the outside of two connecting rods is slidably connected with a sliding plate, the top of the sliding plate is fixedly connected with a rebounding component, the bottom of the sliding plate is fixedly connected with a fixed frame on the left and right sides, the inside of the fixed frame is rotatably connected with a rotating plate two, the other end of the rotating plate two is fixedly connected with a connecting frame, the outside of the connecting frame is fixedly connected with a sliding damping ring, the outside of the sliding damping ring is slidably connected with a sliding rod, the outside of the sliding rod is sleeved with a spring three, and the outside of the connecting rod is fixedly connected to the bottom of the elevator car body.

[0013] As a further description of the above technical solutions:

[0014] The rebounding component comprises a telescopic rod two, the outside of the telescopic rod two is sleeved with a spring two, and the outside of the telescopic rod two is fixedly connected to the outside of the sliding plate.

[0015] As a further description of the above technical solutions:

[0016] The outside of the connecting rod is slidably connected with a damping plate, and the outside of the sliding damping ring is in contact with the outside of the damping plate.

[0017] As a further description of the above technical solutions:

[0018] The inside of the sound insulation plate is provided with a sound absorbing layer, the bottom of the sound absorbing layer is fixedly connected with an insulation layer, and the bottom of the insulation layer is fixedly connected with a reinforcing layer.

[0019] As a further description of the above technical solutions:

[0020] The outside of the insulation layer is arranged in the inside of the sound insulation plate, and the outside of the reinforcing layer is arranged in the inside of the sound insulation plate.

[0021] As a further description of the above technical solutions:

[0022] One end of the spring two is fixedly connected to the bottom of the sliding plate, and the other end of the spring two is fixedly connected to the outside of the elevator car body.

[0023] The utility model has the advantages of the following:

[0024] 1. In the utility model, through pressing rotating plate one, under the rotation of rotating plate one, make rotating plate one extrude telescopic rod one through clamping rod, then can make spring one deform in the process of extrusion, make soundproof board can stably be clamped outside elevator car body, soundproof board can be dismantled and be favorable to the maintenance of soundproof material. Regularly check the state of soundproof material, such as whether there is aging, wear, dampness and so on. Once the problem is found, the soundproof material can be replaced or repaired in time to ensure the long-term stability of soundproof effect.

[0025] 2. In the utility model, when the elevator runs, the sliding plate moves up and down due to vibration, spring two will stretch according to the displacement change of car, effectively buffer vibration energy, reduce the vibration amplitude of car, improve the riding comfort. The outer part of connecting rod is slidably connected with damping plate, which further enhances the absorption of vibration. The sliding damping ring is in contact with the damping plate, and the vibration energy is consumed through the deformation of itself, further improving the damping effect. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a three-dimensional schematic view of the noise reduction mechanism of the elevator car proposed in the utility model;

[0027] Figure 2 It is a structure schematic view of the damping plate of the noise reduction mechanism of the elevator car proposed in the utility model;

[0028] Figure 3 It is Figure 2 the enlarged view of A in the utility model;

[0029] Figure 4 It is a structure schematic view of the soundproof board of the noise reduction mechanism of the elevator car proposed in the utility model;

[0030] Figure 5 It is a structure schematic view of the sound reduction layer of the noise reduction mechanism of the elevator car proposed in the utility model.

[0031] LEGEND:

[0032] 1, elevator car body; 2, top plate; 3, fixed shaft; 4, rotating plate one; 5, clamping rod; 6, telescopic rod one; 7, spring one; 8, soundproof board; 9, connecting rod; 10, sliding plate; 11, telescopic rod two; 12, spring two; 13, fixed frame; 14, rotating plate two; 15, link frame; 16, sliding damping ring; 17, sliding rod; 18, spring three; 19, damping plate; 20, sound reduction layer; 21, insulation layer; 22, reinforcing layer. DETAILED DESCRIPTION

[0033] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0034] With reference to Figures 1 to 3 A noise reduction mechanism of an elevator car includes an elevator car body 1, which is the carrier of the entire noise reduction mechanism, and is usually made of metal materials such as carbon steel or stainless steel, which are strong and have good sound insulation performance. The carbon steel car body has high strength and toughness, and can withstand various forces during elevator operation. The elevator car body 1 is fixedly connected with a top plate 2 outside, which is a mounting and fixing mechanism and a base platform for carrying other components, and is generally made of metal plates such as steel plates or aluminum plates, which have certain strength and rigidity. The top plate 2 is fixedly connected with a plurality of fixing mechanisms outside, which can firmly install the sound insulation plate 8 outside the elevator car body 1, and enhance the sound insulation effect. The elevator car body 1 is fixedly connected with a plurality of sound insulation plates 8 outside, which are key components for reducing elevator noise, and are generally made of materials with good sound insulation performance, such as sound-absorbing cotton, foamed aluminum plate or multi-layer composite sound insulation material. The bottom of the elevator car body 1 is fixedly connected with a damping mechanism, which can effectively reduce the vibration and impact during the operation of the elevator, and improve the comfort of riding. The damping mechanism includes a plurality of connecting rods 9, which are components connecting the elevator car body 1 and the sliding plate 10, and are generally made of metal such as stainless steel or alloy steel, which have high strength and rigidity. The two connecting rods 9 are slidingly connected with a sliding plate 10 outside, which is a base platform for installing a rebound assembly and a connecting fixing frame 13, and is generally made of metal plates such as steel plates or aluminum plates, which have certain strength and rigidity;

[0035] The shape of the sliding plate 10 is generally rectangular or square, and its size is determined according to the layout requirements of the rebound assembly and the fixed frame 13. The top of the sliding plate 10 is fixedly connected with the rebound assembly, which includes the telescopic rod II 11. The telescopic rod II 11 is used to limit the sliding range of the sliding plate 10 and provide a certain supporting force. It is generally made of metal such as stainless steel or alloy steel, which has high strength and rigidity. The telescopic rod II 11 is externally sleeved with a spring II 12, which plays a role in buffering, resetting and providing a certain pre-tightening force in the rebound assembly. The spring II 12 is made of high-quality spring steel material, and its elastic coefficient is accurately calculated and designed according to the weight, vibration amplitude and required buffering force of the elevator car body 1, so as to ensure that the sliding plate 10 can provide appropriate elastic support under various working conditions. The telescopic rod II 11 is fixedly connected outside the sliding plate 10. The bottom and both sides of the sliding plate 10 are fixedly connected with the fixed frame 13. The fixed frame 13 is used as a connecting part between the sliding plate 10 and the rotating plate II 14, and is generally made of metal such as angle steel or channel steel, which has good strength and rigidity. The shape of the fixed frame 13 is generally L-shaped or triangular frame structure. The fixed frame 13 is rotatably connected with the rotating plate II 14, which is used as a transmission part between the fixed frame 13 and the connecting frame 15;

[0036] It is generally made of metal plate or metal rod, which has certain strength and flexibility. The other end of the rotating plate II 14 is fixedly connected with the connecting frame 15, which is used as a connecting part between the rotating plate II 14 and the sliding damping ring 16, and is generally made of metal plate such as steel plate or aluminum plate, which has certain strength and rigidity. The connecting frame 15 is fixedly connected with the sliding damping ring 16, which is used as a damping part in the damping mechanism, and is generally made of rubber or polyurethane and other materials with good damping performance. The rubber sliding damping ring 16 has good elasticity and damping characteristics, which can consume energy through its deformation during elevator vibration, and plays a role in shock absorption. The polyurethane sliding damping ring 16 performs better in wear resistance and oil resistance, and is suitable for some special elevator operating environment. The sliding damping ring 16 is slidably connected with the sliding rod 17, which is used as a part to limit the movement range of the sliding damping ring 16 and provide guidance. The sliding rod 17 is externally sleeved with a spring III 18, and the connecting rod 9 is fixedly connected to the bottom of the elevator car body 1;

[0037] The fixing mechanism comprises a fixing shaft 3, a rotating plate 4 rotatably connected to the outside of the fixing shaft 3, the fixing shaft 3 serving as the rotation center of the rotating plate 4, and the fixing shaft 3 being generally made of metal such as stainless steel or alloy steel and having high strength and wear resistance. The fixing mechanism further comprises a clamping rod 5 fixedly connected to the outside of the rotating plate 4, the clamping rod 5 serving as a key component for clamping and fixing the soundproof plate 8, and the clamping rod 5 being generally made of metal such as stainless steel or alloy steel and having high strength and rigidity. The fixing mechanism further comprises an extension rod 6 fixedly connected to the outside of the rotating plate 4, the extension rod 6 serving as a component for limiting the rotation range of the rotating plate 4 and providing a certain supporting force for the rotating plate 4, and the extension rod 6 being generally made of metal such as stainless steel or alloy steel and having high strength and rigidity. The fixing mechanism further comprises a spring assembly, the spring assembly comprising a spring 7, the spring 7 serving as a key component for providing a spring force, and the spring 7 being made of high-quality spring steel and having an elastic coefficient accurately calculated and designed according to the clamping requirement of the clamping rod 5 and the soundproof plate 8 and the required pre-tightening force and the like, so as to ensure that the clamping rod 5 is provided with appropriate spring force support under various working conditions.

[0038] One end of the spring 7 is fixedly connected to the outside of the rotating plate 4, the other end of the spring 7 is fixedly connected to the outside of the top plate 2, the outside of the clamping rod 5 is clamped with the outside of the soundproof plate 8, the outside of the fixing shaft 3 is fixedly connected to the outside of the top plate 2, and when the soundproof plate 8 is installed, the clamping groove of the soundproof plate 8 is aligned with the clamping rod 5. Under the action of the spring force of the spring 7, the clamping rod 5 is smoothly clamped into the clamping groove, and the soundproof plate 8 is quickly and firmly installed. The outside of the fixing shaft 3 is fixedly connected to the outside of the top plate 2, so that the fixing mechanism can be stably installed on the top plate 2, facilitating the installation and disassembly operation of the soundproof plate 8, and maintaining a stable working state during the operation of the elevator, ensuring that the soundproof plate 8 is always in a good fixed state.

[0039] Referring to Figures 3 to 4The outer part of the connecting rod 9 is slidably connected with a shock-absorbing plate 19, which is a key component for further buffering the vibration of the elevator car. The material of the shock-absorbing plate 19 is usually rubber or a composite material of rubber and metal. The shock-absorbing plate 19 made of rubber has good elasticity and damping properties, and can effectively absorb and disperse vibration energy. The outer part of the sliding damping ring 16 is in contact with the outer part of the shock-absorbing plate 19. The inner part of the sound insulation plate 8 is provided with a sound-absorbing layer 20, and the bottom of the sound-absorbing layer 20 is fixedly connected with an insulation layer 21. The sound-absorbing layer 20 is mainly responsible for absorbing sound in the sound insulation plate 8, and the material thereof is usually sound-absorbing cotton. The sound-absorbing cotton has good sound-absorbing performance, and has a large number of micro pores inside, which can make sound reflect and refract multiple times in the pores, thereby converting sound energy into heat energy or other forms of energy for consumption. The insulation layer 21 mainly plays a role in preventing the spread of sound, and the material thereof is usually rubber. The rubber insulation layer 21 has good flexibility and sound insulation effect, and can effectively block the spread of sound and to a certain extent, can buffer the impact force from the outside, protecting the structure inside the sound insulation plate 8. The bottom of the insulation layer 21 is fixedly connected with a reinforcing layer 22.

[0040] The reinforcing layer 22 is used to enhance the overall strength of the sound insulation plate 8, so that it can withstand various external forces during the operation of the elevator, such as vibration, collision, etc. The material of the reinforcing layer 22 is usually a metal sheet, such as a steel plate or an aluminum plate, etc., which has high strength and rigidity. The steel plate reinforcing layer 22 has high strength and hardness, and can provide reliable support for the sound insulation plate 8. The outer part of the insulation layer 21 is arranged inside the sound insulation plate 8, and the outer part of the reinforcing layer 22 is arranged inside the sound insulation plate 8. One end of the spring 12 is fixedly connected to the bottom of the sliding plate 10, and the other end of the spring 12 is fixedly connected to the outer part of the elevator car body 1, so as to ensure that the spring 12 can work stably in the entire damping mechanism. When the elevator car is subjected to vibration or impact, the spring 12 can stretch and contract according to the displacement change of the car, effectively buffering and absorbing vibration energy, reducing the vibration amplitude of the car, and improving the comfort and safety of riding.

[0041] Working principle: when the elevator car body 1 runs, the mechanical vibration and noise of the elevator are transmitted to the passenger cabin through the structure of the car body. In order to effectively reduce these noises and vibrations, the noise reduction mechanism works through multiple key components. First, the top plate 2 is fixedly connected to the outside of the elevator car body 1, which serves as the installation basis and supports the sound insulation plate 8 and the damping mechanism. By pressing the rotating plate 4, the rotating plate 4 is pressed against the telescopic rod 6 through the clamping rod 5, which can make the spring 7 deform in the process of extrusion, so that the sound insulation plate 8 can be stably clamped on the outside of the elevator car body 1. The sound insulation plate 8 is made of materials with good sound insulation performance, such as sound absorbing cotton and aluminum foam plate, installed on the outside of the car and firmly connected with the top plate 2 through the fixing mechanism, ensuring its stability during elevator operation. In the sound insulation plate 8, there are sound absorbing layer 20 and insulation layer 21, sound absorbing layer 20 is made of sound absorbing cotton, mainly responsible for absorbing sound, while insulation layer 21 is made of rubber material, which prevents sound propagation and buffers external impact force. Reinforced layer 22 enhances the overall strength of sound insulation plate 8, so that it can withstand external force during elevator operation.

[0042] At the bottom of the car, the damping mechanism is connected to the sliding plate 10 through the connecting rod 9. The top of the sliding plate 10 is installed with a rebound assembly, including telescopic rod 11 and spring 12, which can limit the movement range of the sliding plate 10 and provide support force. When the elevator runs, the sliding plate 10 moves up and down due to vibration, and the spring 12 will expand and contract according to the displacement of the car, effectively buffering the vibration energy and reducing the vibration amplitude of the car, improving the riding comfort. In addition, the connecting rod 9 is externally connected with the damping plate 19, which further enhances the absorption of vibration. The material of the damping plate 19 is rubber, which has good elasticity and damping characteristics, and can effectively absorb vibration and disperse energy. The sliding damping ring 16 is in contact with the damping plate 19, which deforms itself to consume vibration energy, further improving the damping effect.

Claims

1. A noise reduction mechanism of an elevator car, comprising an elevator car body (1), characterized by: The outside of the elevator car body (1) is fixedly connected with a top plate (2), a plurality of fixing mechanisms are fixedly connected to the outside of the top plate (2), a plurality of sound insulation boards (8) are fixedly connected to the outside of the elevator car body (1), and a damping mechanism is fixedly connected to the bottom of the elevator car body (1); The fixing mechanism comprises a fixed shaft (3), a rotating plate one (4) is rotatably connected to the outside of the fixed shaft (3), a clamping rod (5) is fixedly connected to the outside of the rotating plate one (4), a telescopic rod one (6) is fixedly connected to the outside of the rotating plate one (4), an elastic assembly is sleeved on the outside of the telescopic rod one (6), the outside of the clamping rod (5) is clamped with the outside of the sound insulation board (8), and the outside of the fixed shaft (3) is fixedly connected to the outside of the top plate (2).

2. A noise reduction mechanism for an elevator car as defined in claim 1, characterized by: The elastic assembly comprises a spring one (7), one end of the spring one (7) is fixedly connected to the outside of the rotating plate one (4), and the other end of the spring one (7) is fixedly connected to the outside of the top plate (2).

3. A noise reduction mechanism for an elevator car as defined in claim 2, characterized by: The damping mechanism comprises a plurality of connecting rods (9), a sliding plate (10) is slidably connected to the outside of two connecting rods (9), a rebound assembly is fixedly connected to the top of the sliding plate (10), fixed frames (13) are fixedly connected to the left and right sides of the bottom of the sliding plate (10), a rotating plate two (14) is rotatably connected to the inside of the fixed frame (13), an adapter frame (15) is fixedly connected to the other end of the rotating plate two (14), a sliding damping ring (16) is fixedly connected to the outside of the adapter frame (15), a sliding rod (17) is slidably connected to the outside of the sliding damping ring (16), a spring three (18) is sleeved on the outside of the sliding rod (17), and the outside of the connecting rod (9) is fixedly connected to the bottom of the elevator car body (1).

4. A noise reduction mechanism for an elevator car as defined in claim 3, wherein: The rebound assembly comprises a telescopic rod two (11), the telescopic rod two (11) is sleeved with a spring two (12), and the outside of the telescopic rod two (11) is fixedly connected to the outside of the sliding plate (10).

5. The noise reduction mechanism of claim 3, wherein: The outside of the connecting rod (9) is slidably connected with a damping plate (19), and the outside of the sliding damping ring (16) is in contact with the outside of the damping plate (19).

6. The noise reduction mechanism of claim 1, wherein: The inside of the sound insulation board (8) is provided with a sound absorption layer (20), the bottom of the sound absorption layer (20) is fixedly connected with an isolation layer (21), and the bottom of the isolation layer (21) is fixedly connected with a reinforcing layer (22).

7. A noise reduction mechanism for an elevator car as defined in claim 6, wherein: The outside of the isolation layer (21) is arranged in the inside of the sound insulation board (8), and the outside of the reinforcing layer (22) is arranged in the inside of the sound insulation board (8).

8. The noise reduction mechanism of claim 4, wherein: One end of the spring two (12) is fixedly connected to the bottom of the sliding plate (10), and the other end of the spring two (12) is fixedly connected to the outside of the elevator car body (1).

Images