Additional damping web tuned pressurized liquid column damper for elevator vertical vibration damping

Abstract

The application discloses an additional damping net type tuned pressurized liquid column damper for elevator vertical vibration reduction, comprising a brachistochrone tube, a vertical hydraulic tube and a damping net; the bottom of the brachistochrone tube is provided with a hole based on the cycloid brachistochrone principle; the vertical hydraulic tube is connected to the hole at the bottom of the brachistochrone tube; the damping net is arranged inside the brachistochrone tube and the vertical hydraulic tube; rubber air springs are arranged at the two ends of the brachistochrone tube; a support bottom plate and a vacuum suction disc are arranged at the bottom of the vertical hydraulic tube; by combining the brachistochrone tube and the vertical hydraulic tube, liquid can reciprocate at the fastest speed under the action of gravity, and the energy consumption efficiency is greatly improved; the damping net enhances the liquid sloshing resistance and improves the overall damping value; the system stiffness is flexibly adjusted through the rubber air springs, so that the tuning frequency is accurately matched with the structure natural frequency; the vacuum suction disc realizes lightweight installation, and finally the effect of efficiently controlling elevator vertical vibration and improving applicability and safety is achieved.

Description

Technical Field

[0001] This invention relates to the field of elevator damper technology, and more specifically, to an additional damping mesh type tuned pressurized liquid column damper for vertical vibration reduction in elevators. Background Technology

[0002] With the increasing frequency of natural disasters such as earthquakes and typhoons, vibration control technology for building structures is receiving growing attention. Tuned liquid column dampers (TLCDs), as a typical horizontal vibration reduction device, usually employ a U-shaped or V-shaped water pipe structure. By tuning the vibration frequency of the liquid column inside the pipe to match the natural frequency of the structure, the energy of the structural motion is transferred to the liquid for energy dissipation. This technology is widely used due to its convenient installation and low cost.

[0003] However, traditional TLCDs have significant limitations: their design principles only address horizontal vibration reduction, making it difficult to effectively control vibrations in structures susceptible to vertical vibrations, such as elevator shafts and elevator systems. Under conditions of unstable operation, overload, or external excitation (such as earthquakes or strong winds), vertical vibrations in elevators can cause sudden acceleration of the car, operational instability, and even the risk of a fall. Current technology lacks specialized tuning and energy dissipation devices for vertical vibrations, making it difficult to guarantee the vertical safety and comfort of elevators and other structures.

[0004] While theoretically, increasing the vertical liquid storage space can improve the vertical vibration damping capability of a TLCD, the liquid in existing devices struggles to overcome gravity to achieve rapid reciprocating flow, resulting in low energy consumption efficiency. Furthermore, the fixed tuning frequency of traditional TLCDs cannot adapt to variations in the natural frequencies of different structures. Therefore, there is an urgent need to develop a novel damper with high vertical energy dissipation capability, adjustable frequency characteristics, and strong adaptability. Summary of the Invention

[0005] In view of the above-mentioned technical problems in related technologies, the present invention proposes an additional damping mesh type tuned pressurized liquid column damper for vertical vibration reduction of elevators, which can overcome the above-mentioned shortcomings of the prior art.

[0006] To achieve the above-mentioned technical objectives, the technical solution of the present invention is implemented as follows: Additional damping mesh type tuned pressurized liquid column damper for vertical vibration reduction in elevators; The additional damping mesh type tuned pressurized hydraulic column damper for vertical vibration reduction in elevators includes a speed-maximum curve tube, a vertical hydraulic pipe, a damping mesh, a rubber air spring, a supporting base plate, and a vacuum suction cup. The speed-maximum curve tube has an opening at its bottom and is designed based on the principle of cycloidal speed-maximum descent. The vertical hydraulic pipe is connected to the opening at the bottom of the speed-maximum curve tube. The damping mesh is disposed inside the speed-maximum curve tube and the vertical hydraulic pipe. The rubber air spring is installed at both ends of the speed-maximum curve tube. The supporting base plate and the vacuum suction cup are disposed at the bottom of the vertical hydraulic pipe.

[0007] Furthermore, it also includes a tuning liquid, which is pure water or lubricating oil with a density of not less than 850 kg / m³, and the ratio of the total mass of the liquid to the mass of the elevator car is 1% to 5%.

[0008] Furthermore, the ratio of the diameter of the pipe opening to the length of both ends of the fastest curve tube is 1:8 to 1:10, and the ratio of the vertical distance from one end of the curve tube to the bottom to the length of both ends is 1:2 to 1:3.

[0009] Furthermore, the damping mesh is made of glass fiber with a porosity of 30% to 60%.

[0010] Furthermore, the rubber air spring includes a pressure regulator, an air bladder, a waist ring, and a piston; the pressure regulator drives the air bladder to inflate, thereby moving the piston to adjust the system stiffness.

[0011] Furthermore, the aspect ratio of the pressurization regulator is 1:0.4 to 1:0.5, and the aspect ratio of the airbag is 1:0.25 to 1:0.3.

[0012] Furthermore, both the fastest curve tube and the vertical hydraulic tube are made of plexiglass, and the ratio of the length of the vertical hydraulic tube to the lengths of both ends of the fastest curve tube is 1:1.4 to 1:1.6.

[0013] Furthermore, the length-to-width ratio of the supporting base plate is 1:0.3 to 1:0.4, the width-to-height ratio is 1:0.3 to 1:0.4, and the material is plexiglass.

[0014] Furthermore, the vacuum suction cup is made of natural rubber with an elastic modulus of 10–100 N / mm².

[0015] Furthermore, the dampers are symmetrically arranged on both sides of the elevator car and are fixed to the elevator side wall by vacuum suction cups.

[0016] The beneficial effects of this invention are as follows: by combining the fastest curve pipe with the vertical hydraulic pipe, the liquid flows back and forth at the fastest speed under the action of gravity, thereby significantly improving energy efficiency; by using a damping net to enhance the resistance to liquid sloshing, the overall damping value is significantly improved; by using a rubber air spring to flexibly adjust the system stiffness, the tuning frequency is precisely matched with the structure's natural frequency; and by using a vacuum suction cup to achieve lightweight installation, the invention ultimately achieves the effect of efficiently controlling the vertical vibration of the elevator, improving its applicability and safety. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional rendering of the application of the additional damping mesh tuned pressurized liquid column damper for vertical vibration reduction in elevators according to an embodiment of the present invention in an elevator. Figure 2 This is a three-dimensional rendering of the additional damping mesh tuned pressurized liquid column damper for vertical vibration reduction of elevators according to an embodiment of the present invention; Figure 3 This is a front view of the additional damping mesh tuned pressurized liquid column damper for vertical vibration reduction of elevators according to an embodiment of the present invention; Figure 4 This is a side view of the additional damping mesh tuned pressurized liquid column damper for vertical vibration reduction of elevators according to an embodiment of the present invention; Figure 5 This is a top view of the additional damping mesh tuned pressurized liquid column damper for vertical vibration reduction of elevators according to an embodiment of the present invention; Figure 6 This is a front view of the rubber air spring of the additional damping mesh tuned pressurized liquid column damper for vertical vibration reduction of elevators according to an embodiment of the present invention; Figure 7 This is a front view of the liquid flowing upward to both ends of the fastest curve tube in the additional damping mesh type tuned pressurized liquid column damper for vertical vibration reduction of elevators according to an embodiment of the present invention. In the diagram: 1. Tuning fluid; 2. Fastest curve tube; 3. Vertical hydraulic tube; 4. Damping net; 5. Rubber air spring; 6. Pressure regulator; 7. Support base plate; 8. Vacuum suction cup; 9. Airbag; 10. Waist ring; 11. Piston; 12. Elevator; 13. Elevator side wall; 14. Elevator inner clamp. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the scope of protection of the present invention.

[0020] It should be understood that in the description of the embodiments of the present invention, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are used only for the convenience of describing the embodiments of the present invention and for simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of the embodiments of the present invention, "several" means two or more, unless otherwise explicitly specified.

[0021] like Figure 1-7 As shown in the embodiment of the present invention, the additional damping mesh type tuned pressurized hydraulic column damper for vertical vibration reduction of elevators includes a fastest curve tube 2, a vertical hydraulic tube 3, a damping mesh 4, a rubber air spring 5, a supporting base plate 7, and a vacuum suction cup 8; the bottom of the fastest curve tube 2 is opened and is set based on the principle of cycloidal fastest descent; the vertical hydraulic tube 3 is connected to the bottom opening of the fastest curve tube 2; the damping mesh 4 is disposed inside the fastest curve tube 2 and the vertical hydraulic tube 3; the rubber air spring 5 is installed at both ends of the fastest curve tube 2; the supporting base plate 7 and the vacuum suction cup 8 are disposed at the bottom of the vertical hydraulic tube 3.

[0022] According to an embodiment of the present invention, the additional damping mesh type tuned pressurized liquid column damper for vertical vibration reduction of elevators further includes, in a specific embodiment, a tuning liquid 1, wherein the tuning liquid 1 is pure water or lubricating oil with a density of not less than 850 kg / m³, and the ratio of the total mass of the liquid to the mass of the elevator car is 1% to 5%.

[0023] According to an embodiment of the present invention, in a specific embodiment of the additional damping mesh type tuned pressurized liquid column damper for vertical vibration reduction of elevator, the ratio of the diameter of the pipe opening of the fastest curve tube 2 to the length of both ends is 1:8 to 1:10, and the ratio of the vertical distance from one end of the curve tube to the bottom to the length of both ends is 1:2 to 1:3.

[0024] According to an embodiment of the present invention, the additional damping mesh type tuned pressurized liquid column damper for vertical vibration reduction of elevators, in a specific embodiment, the damping mesh 4 is made of glass fiber material with a porosity of 30% to 60%.

[0025] According to an embodiment of the present invention, the additional damping mesh type tuned pressurized liquid column damper for vertical vibration reduction of elevators, in a specific embodiment, the rubber air spring 5 includes a pressure regulator 6, an air bladder 9, a waist ring 10 and a piston 11; the pressure regulator 6 drives the air bladder 9 to expand, thereby moving the piston 11 to adjust the system stiffness.

[0026] According to an embodiment of the present invention, in a specific embodiment of the additional damping mesh type tuned pressurized liquid column damper for vertical vibration reduction of elevators, the aspect ratio of the pressurization regulator 6 is 1:0.4 to 1:0.5, and the aspect ratio of the airbag 9 is 1:0.25 to 1:0.3.

[0027] According to an embodiment of the present invention, the additional damping mesh type tuned pressurized hydraulic column damper for vertical vibration reduction of elevators, in a specific embodiment, both the fastest curve tube 2 and the vertical hydraulic tube 3 are made of plexiglass, and the ratio of the length of the vertical hydraulic tube 3 to the length of both ends of the fastest curve tube 2 is 1:1.4 to 1:1.6.

[0028] According to an embodiment of the present invention, the additional damping mesh type tuned pressurized liquid column damper for vertical vibration reduction of elevators has, in a specific embodiment, a length-to-width ratio of 1:0.3 to 1:0.4 and a width-to-height ratio of 1:0.3 to 1:0.4 on the supporting base plate 7, and the material is plexiglass.

[0029] According to an embodiment of the present invention, the additional damping mesh type tuned pressurized liquid column damper for vertical vibration reduction of elevators, in a specific embodiment, the vacuum suction cup 8 is made of natural rubber with an elastic modulus of 10 to 100 N / mm².

[0030] According to an embodiment of the present invention, the additional damping mesh type tuned pressurized liquid column damper for vertical vibration reduction of elevator is, in a specific embodiment, arranged symmetrically on both sides of the elevator car and fixed to the elevator side wall 13 by vacuum suction cup 8.

[0031] To facilitate understanding of the above technical solutions of the present invention, the following detailed description of the above technical solutions of the present invention will be provided through specific usage methods.

[0032] In practical application, the additional damping mesh type tuned pressurized liquid column damper for vertical vibration reduction of elevators according to the present invention includes a tuning liquid 1, a maximum speed curve tube 2, a vertical hydraulic tube 3, a damping mesh 4, a rubber air spring 5, a pressure regulator 6, a support base plate 7, a vacuum suction cup 8, an airbag 9, a waist ring 10, and a piston 11. When the structure experiences vertical vibration, the tuning liquid 1 can flow upward from the vertical hydraulic tube 3 into the maximum speed curve tube 2 due to inertia. Under the combined action of gravity and the pressure provided by the rubber air springs 5 ​​set at both ends of the maximum speed curve tube 2, the tuning liquid 1 will flow back to the vertical hydraulic tube 3 through the maximum speed curve tube 2. The tuning liquid 1 reciprocates in this way in the damper, thereby achieving vertical tuning and vibration reduction of the structure.

[0033] The tuning fluid 1 can be pure water or professional lubricating oil with a density of not less than 850 kg / m³. It is advisable to arrange dampers symmetrically on both sides of the elevator car. The ratio of the total mass of the fluid to the mass of the car should be between 1% and 5%.

[0034] The fastest descent curve tube 2 is designed based on the principle of the cycloidal fastest descent curve, maximizing the speed at which the liquid falls from both ends of the tube to the vertical hydraulic tube 3, thus achieving rapid energy dissipation. The curvature of the curve tube is calculated using a formula, specifically: [formula omitted for brevity]. c It is a constant determined by the vertical distance between the bottom and top of the curved tube, and this distance can be determined according to the actual space size used; g It is the acceleration due to gravity; y 0 represents the initial height; y ( x () represents the vertical distance between the bottom and top of the curved pipe. The ratio of the diameter of the curved pipe opening to the length between the two ends of the curved pipe should preferably be 1:8 to 1:10, and the ratio of the vertical distance from one end of the curved pipe to the bottom to the length between the two ends of the curved pipe should preferably be 1:2 to 1:3.

[0035] The fastest curve tube 2 is made of plexiglass, with an elastic modulus ranging from 3.2 × 10⁻⁶. 3 N / mm 2 ~3.5×10 3 N / mm 2 Suitable for containing liquids. The bottom of the fastest curve pipe 2 has an opening to connect to the vertical hydraulic pipe 3. The vertical hydraulic pipe 3 is made of the same plexiglass material. The length ratio of the vertical hydraulic pipe 3 to the length between the two ends of the fastest curve pipe 2 should preferably be 1:1.4~1:1.6, and the pipe diameter is the same as that of the curve pipe.

[0036] Damping mesh 4, made of glass fiber, is installed in both the fastest curve pipe 2 and the vertical hydraulic pipe 3. The elastic modulus should preferably be in the range of 7×10. 4 N / mm 2 ~8×10 4 N / mm 2The porosity should be 30% to 60%, which can provide significant additional damping for the damper, increase energy dissipation efficiency, and improve vibration reduction performance.

[0037] The rubber air spring 5 consists of a pressure regulator 6, an air bladder 9, a waist ring 10, and a piston 11. The aspect ratio of the pressure regulator 6 should preferably be between 1:0.4 and 1:0.5; the aspect ratio of the air bladder 9 should preferably be between 1:0.25 and 1:0.3. Both are made of rubber with an elastic modulus of 10 N / mm². 2 ~100N / mm 2 The aspect ratio of the waist ring 10 should preferably be 1:0.1 to 1:0.15; the aspect ratio of the piston 11 should preferably be 1:0.2 to 1:0.3. When pressure is applied to the air bladder 9 through the pressure regulator 6, the air bladder 9 will expand, thereby driving the piston 11 to move downward, thus pressurizing the inside of the damper, improving the overall stiffness of the damper, and thus tuning the tuning frequency of the damper of the present invention to be the same as the natural frequency of the structure, thereby achieving tuned vibration reduction.

[0038] A support plate 7 and a vacuum suction cup 8 are installed at the bottom of the vertical hydraulic pipe 3 to firmly adhere it to the structural surface. The aspect ratio of the support plate 7 should preferably be between 1:0.3 and 1:0.4, and the aspect ratio should preferably be between 1:0.3 and 1:0.4. Acrylic glass is selected as the material for the support plate 7, and its elastic modulus should preferably be between 3.2 × 10⁻⁶. 3 N / mm 2 ~3.5×10 3 N / mm 2 The bottom of the support base plate 7 is equipped with a vacuum suction cup made of natural rubber, with an elastic modulus preferably in the range of 10 N / mm². 2 ~100N / mm 2 It has good elasticity, wear resistance, corrosion resistance and certain adhesion properties, which ensures that it can be firmly adsorbed in a vacuum and will not be damaged during long-term use.

[0039] The specific implementation steps of this invention patent are as follows: The elevator is 2.4m high and 1.6m wide, with elevator doors 2m high and 1m wide, and a total weight of 300kg. Because the building where this elevator is installed is located in a seismically active zone with a seismic fortification intensity of 8 degrees, the requirements for seismic resistance and vibration reduction are high, and its vertical comfort level is relatively low. Therefore, seismic and vibration reduction measures are necessary, especially vertical vibration control, to reduce instability during elevator operation and mitigate the risks of sudden stops or starts and excessive instantaneous acceleration during earthquakes. An additional damping mesh-type tuned pressurized liquid column damper is installed on each side of the elevator, and the dampers are isolated from the elevator interior space by an internal clamp to ensure normal elevator use. The radius of the fastest curve tube opening in the damper is... r 1 = 0.04m, the length between the two ends of the curved pipeL 1 = 0.8m, the vertical distance from one end of the curved pipe to the bottom of the curved pipe. d 1 = 0.4m. Radius of the vertical hydraulic pipe inlet. r 2 = 0.04m, height h 1 = 0.7m. The radius of the pressure regulator. r 3 = 0.025m, height h 2 = 0.015m. The radius of the airbag. r 4 = 0.03m, height h 3 = 0.02m. The radius of the waist ring. r 5 = 0.025m, height h 4 = 0.01m. The radius of the piston. r 6 = 0.04m, height h 5 = 0.015m. Pure water is injected into the vertical hydraulic pipe of the damper; its mass is 1.5% of the total elevator mass. The diameter of the damping mesh wires... d 2 = 1mm, porosity is 33%. The stiffness of the rubber air spring is adjusted to 2 × 10 using a pressure regulator. 6 N / m, providing stiffness to the system. The additional damping mesh type tuned pressurized liquid column damper is equipped with a supporting base plate at its lower part, the length of which is... L 2 = 0.24m, width b 1 = 0.08m, height h 6 = 0.015m. Six vacuum suction cups are installed on the supporting base plate; the radius of each vacuum suction cup is... r 7 = 0.02m.

[0040] When an earthquake strikes and causes severe vertical vibrations in the elevator, the liquid in the additional damping mesh-type tuned pressurized hydraulic column dampers arranged on both sides of the elevator flows rapidly upward from the vertical hydraulic pipe to the fastest curve pipe, and then quickly flows back to the vertical pressurized pipe under the action of gravity and air spring pressure. This high-speed reciprocating motion of the liquid in the damper achieves rapid and efficient energy dissipation, resulting in a significant vertical vibration reduction effect. The elevator's vertical displacement vibration reduction rate reaches 65.5%, and the vertical acceleration vibration reduction rate reaches 86.8%, which is 32.5% higher than the vibration reduction rate of installing a traditional TLCD. The damping mesh increases the total damping value by 32.6%, significantly improving energy dissipation efficiency.

[0041] Measurements show that when an earthquake or strong wind strikes, the applied additional damping mesh tuned pressurized liquid column damper can effectively dissipate energy and reduce vibration. The vibration acceleration index meets international elevator ride comfort standards, and the vibration reduction effect is significant. Under the same liquid mass, the additional damping mesh tuned pressurized liquid column damper improves the vertical vibration reduction rate of the elevator by 35% compared to the traditional TLCD, achieving a good vertical vibration control effect.

[0042] In summary, the advantages of the technical solution of the present invention compared with the prior art are as follows: A vertical damping additional damping mesh type tuned pressurized liquid column damper is formed. Based on the principle of the fastest descent of the cycloidal line, the fastest curve tube is set to achieve the fastest liquid descent speed, which greatly improves the liquid energy consumption and vibration reduction efficiency.

[0043] By combining the fastest curve tube with a vertical hydraulic pipe, a damping net, and a rubber air spring, a complete dynamic system is formed. By inflating the rubber air spring, the volume and pressure of the gas inside the sealed curve tube are changed through the expansion and compression of the air bladder, thereby adjusting the stiffness of the air spring. This allows for the adjustment of the tuning stiffness in the damper, making its tuning frequency the same as or close to the natural frequency of the structure. This achieves tuned vibration reduction of the structure and significantly improves the applicability of the damper.

[0044] A damping net is installed in the middle of the fastest curve pipe and the vertical hydraulic pipe to provide additional damping for the damper, increase energy consumption efficiency, and improve vibration reduction performance.

[0045] By using suction cups to firmly attach the damper to the structural surface, the damper can be flexibly arranged, and the overall mass of the damper can be reduced, thus achieving lightweight vibration control of the structure.

[0046] The device of this invention is convenient and flexible to set up, and all components are inexpensive and readily available, resulting in a high cost-performance ratio. The composite vibration reduction device, which combines the fastest curve tube with a vertical hydraulic tube, a rubber air spring, and a damping net, can effectively absorb and dissipate the energy of structural vibration. It features lightweight design, high energy efficiency, strong robustness, and low space occupancy, making it highly valuable for widespread application.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An auxiliary damping mesh type tuned pressurized liquid column damper for vertical vibration reduction in elevators, characterized in that, The system includes a fastest curve tube (2), a vertical hydraulic tube (3), a damping mesh (4), a rubber air spring (5), a support base plate (7), and a vacuum suction cup (8). The bottom of the fastest curve tube (2) is open and designed based on the principle of the fastest descent of a cycloidal curve. The vertical hydraulic tube (3) is connected to the bottom opening of the fastest curve tube (2). The damping mesh (4) is located inside the fastest curve tube (2) and the vertical hydraulic tube (3). The rubber air spring (5) is installed at both ends of the fastest curve tube (2). The support base plate (7) and the vacuum suction cup (8) are located at the bottom of the vertical hydraulic tube (3).

2. The additional damping mesh type tuned pressurized liquid column damper for vertical vibration reduction of elevators according to claim 1, characterized in that, It also includes a tuning liquid (1), which is pure water or lubricating oil with a density of not less than 850 kg / m³, and the ratio of the total mass of the liquid to the mass of the elevator car is 1% to 5%.

3. The additional damping mesh type tuned pressurized liquid column damper for vertical vibration reduction of elevators according to claim 1, characterized in that, The ratio of the diameter of the pipe opening to the length of both ends of the fastest curve pipe (2) is 1:8 to 1:10, and the ratio of the vertical distance from one end of the curve pipe to the bottom to the length of both ends is 1:2 to 1:

3.

4. The additional damping mesh type tuned pressurized liquid column damper for vertical vibration reduction of elevators according to claim 1, characterized in that, The damping mesh (4) is made of glass fiber with a porosity of 30% to 60%.

5. The additional damping mesh type tuned pressurized liquid column damper for vertical vibration reduction of elevators according to claim 1, characterized in that, The rubber air spring (5) includes a pressure regulator (6), an air bladder (9), a waist ring (10), and a piston (11); the pressure regulator (6) drives the air bladder (9) to inflate, thereby moving the piston (11) to adjust the system stiffness.

6. The additional damping mesh type tuned pressurized liquid column damper for vertical vibration reduction of elevators according to claim 5, characterized in that, The aspect ratio of the pressurization regulator (6) is 1:0.4 to 1:0.5, and the aspect ratio of the airbag (9) is 1:0.25 to 1:0.

3.

7. The additional damping mesh type tuned pressurized liquid column damper for vertical vibration reduction of elevators according to claim 1, characterized in that, Both the fastest curve tube (2) and the vertical hydraulic tube (3) are made of plexiglass, and the ratio of the length of the vertical hydraulic tube (3) to the length of both ends of the fastest curve tube (2) is 1:1.4 to 1:1.

6.

8. The additional damping mesh type tuned pressurized liquid column damper for vertical vibration reduction of elevators according to claim 1, characterized in that, The length-to-width ratio of the supporting base plate (7) is 1:0.3 to 1:0.4, the width-to-height ratio is 1:0.3 to 1:0.4, and the material is plexiglass.

9. The additional damping mesh type tuned pressurized liquid column damper for vertical vibration reduction of elevators according to claim 1, characterized in that, The vacuum suction cup (8) is made of natural rubber with an elastic modulus of 10-100 N / mm².

10. The additional damping mesh type tuned pressurized liquid column damper for vertical vibration reduction of elevators according to claim 1, characterized in that, The dampers are symmetrically arranged on both sides of the elevator car and are fixed to the elevator side wall (13) by vacuum suction cup (8).

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