Elevator shaft damping vibration isolation device

Abstract

A damping vibration isolation device for an elevator shaft relates to the technical field of elevators, is arranged between an elevator shaft wall and an elevator guide rail, and comprises a code support fixed with the elevator shaft wall, a mounting bracket matched and fixed with the code support to form a vibration isolation assembly, and a guide rail bracket connected between the vibration isolation assembly and the elevator guide rail, wherein a vibration isolation space is formed between the code support and the mounting bracket, and a bidirectional vibration isolation assembly is mounted in the vibration isolation space. The damping vibration isolation device is additionally arranged between the elevator guide rail and the elevator hoistway wall, low-frequency resonance generated when the guide rail is continuously knocked by the idler wheels and static vibration generated by a machine-room-free host can be absorbed, transmission of low-frequency vibration energy of a structural body between the elevator guide rail and the elevator hoistway wall is greatly reduced, and transmission of sound energy is reduced; and a quiet and comfortable living environment is provided for residents.

Description

Technical Field

[0001] This invention relates to the field of elevator technology, and specifically to an elevator shaft damping and vibration isolation device. Background Technology

[0002] With the booming development of the real estate industry in recent years, elevators, as an indispensable vertical transportation tool in modern buildings, have seen significant progress in their design and installation technology. However, driven by market demands for efficient use of building space and reduction of shared area, the connection between elevator shafts and the main structure of buildings has become increasingly close. While this trend has optimized architectural design to some extent, it has also brought new problems and challenges.

[0003] Specifically, many developers, in order to maximize the usable area inside the building, have adopted a strategy of designing elevator shafts close to the building walls, or even sharing the elevator shafts with the walls. While this approach effectively reduces the shared area, the resulting problems include the increasingly prominent impact of various vibrations and noises generated during elevator operation on the living environment of residents.

[0004] The vibrations generated by the machine room-less elevator's main engine during operation, as well as the rolling vibrations generated by the rolling guide shoes as they roll on the guide rails, are among the main sources of elevator noise. These vibrations are transmitted through the elevator's guiding device—the guide rails—to the building walls adjacent to the elevator shaft. Because rigid structures such as walls have excellent sound transmission properties, these vibrations and noises can easily penetrate the walls and enter the residents' rooms, creating indoor noise.

[0005] The noise problem caused by elevator operation not only affects residents' living comfort but may also have adverse effects on their daily lives and mental and physical health. Therefore, how to effectively solve the problem of noise transmission during elevator operation has become an important issue that urgently needs to be addressed in current building design and elevator installation technology. Summary of the Invention

[0006] The purpose of this invention is to provide an elevator shaft damping and vibration isolation device to solve the technical problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0008] An elevator shaft damping and vibration isolation device is installed between the elevator shaft wall and the elevator guide rail. It includes a bracket fixed to the elevator shaft wall, a mounting bracket that cooperates with the bracket to form a vibration isolation assembly, and a guide rail bracket for connecting the vibration isolation assembly and the elevator guide rail. A vibration isolation space is formed between the bracket and the mounting bracket, and a bidirectional vibration isolation component is installed in the vibration isolation space.

[0009] Furthermore, the bracket is a U-shaped groove structure with upper and lower bent edges, and the mounting bracket is a rectangular plate structure. The mounting bracket has bent edges on all four sides, namely upper, lower, and side bent edges. The side and lower bent edges of the mounting bracket bend towards the bracket, and the upper bent edge of the mounting bracket bends in the opposite direction. The side bent edges of the mounting bracket are embedded inside the upper and lower bent edges of the bracket, forming a limit on the vertical direction of the mounting bracket. The lower bent edge of the mounting bracket coincides with the thickness direction projection plane of the lower bent edge of the bracket, forming a single-direction limit on the rearward direction of the mounting bracket. The bracket and the mounting bracket are assembled facing each other to form the vibration isolation space.

[0010] Furthermore, a pressure plate is fixedly installed in the U-shaped groove of the bracket, and the pressure plate divides the vibration isolation space into two independent cavities, the bidirectional vibration isolation component is installed in the independent cavity, and the side bend of the mounting bracket and the pressure plate form a left-right limiting position.

[0011] Furthermore, the bidirectional vibration isolation assembly includes a forward vibration isolation unit and a reverse vibration isolation unit, which are respectively disposed in two independent cavities at the front and rear of the vibration isolation space. The forward vibration isolation unit and the reverse vibration isolation unit are damping element A and damping element B, respectively. Damping element A and damping element B are arranged one in front of the other on both sides of the pressure plate. A metal plate is provided on the side of damping element A away from the pressure plate, and a nut is provided on the metal plate. The mounting bracket, damping element B, pressure plate, damping element A, and metal plate are fixed together by tightening bolts. The mounting bracket, damping element B and tightening bolts cooperate to form a forward vibration isolation system, and the damping element A, metal plate, pressure plate and tightening bolts cooperate to form a reverse vibration isolation system.

[0012] Furthermore, both damping element A and damping element B are plate-shaped structures. Damping element B is composed of a first damping element and a second damping element connected in series. The first damping element and the second damping element have different materials and damping coefficients.

[0013] Furthermore, the upper bent edge of the mounting bracket is connected to the plate surface of the mounting bracket by reinforcing ribs.

[0014] Furthermore, the upper bent edge of the mounting bracket is fixed to one end of the guide rail bracket by fixing bolts.

[0015] Furthermore, the upper bent edge of the bracket is longer than the lower bent edge. In the installed state, there is a first gap between the upper bent edge of the bracket and the back of the mounting bracket, a second gap between the lower bent edge of the bracket and the lower bent edge of the mounting bracket, a third gap between the upper bent edge of the bracket and the damping element B, and a fourth gap between the lower bent edge of the bracket, the lower bent edge of the mounting bracket, and the damping element B.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This invention, by adding a damping vibration isolation device between the elevator guide rail and the elevator shaft wall, can absorb the low-frequency resonance generated by the continuous impact of rollers on the guide rail and the static vibration generated by the machine room-less main unit. This significantly reduces the transmission of low-frequency vibration "energy" between the elevator guide rail and the elevator shaft wall, reducing the propagation of sound energy and providing residents with a quiet and comfortable living environment. This invention is highly adaptable and safe, fully considering the failure of damping components under abnormal operating conditions. The vibration isolation device is protected by mechanical safety limits in the metal structure and can be directly installed in existing elevator shafts. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the exploded structure of the present invention;

[0021] Figure 3 This is a top view of the structure of the present invention;

[0022] Figure 4 for Figure 3 A schematic diagram of the cross-sectional structure;

[0023] Figure 5 for Figure 4 A magnified view of a portion of the image. Detailed Implementation

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0026] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] like Figure 1-5 As shown, an elevator shaft damping vibration isolation device is installed between the elevator shaft wall and the elevator guide rail. It includes a bracket 1 fixed to the elevator shaft wall, a mounting bracket 2 that cooperates with the bracket 1 to form a vibration isolation assembly, and a guide rail bracket 3 for connecting the vibration isolation assembly and the elevator guide rail. A vibration isolation space is formed between the bracket 1 and the mounting bracket 2, and a bidirectional vibration isolation component is installed in the vibration isolation space.

[0029] The bracket 1 is a U-shaped groove structure with upper and lower bent edges, and the mounting bracket 2 is a rectangular plate structure. The four sides of the mounting bracket 2 are provided with bent edges, namely upper, lower, and side bent edges. The side and lower bent edges of the mounting bracket 2 are bent towards the bracket 1, and the upper bent edge of the mounting bracket 2 is bent in the opposite direction. In the installed state, the side bent edges of the mounting bracket 2 are embedded inside the upper and lower bent edges of the bracket 1, forming a limit on the vertical direction of the mounting bracket 2. The lower bent edge of the mounting bracket 2 coincides with the thickness direction projection plane of the lower bent edge of the bracket 1, forming a single-direction limit on the rearward direction of the mounting bracket 2. The bracket 1 and the mounting bracket 2 are assembled facing each other to form the vibration isolation space.

[0030] A pressure plate 5 is fixedly installed in the U-shaped groove of the bracket 1. The pressure plate 5 divides the vibration isolation space into two independent cavities, and the bidirectional vibration isolation component is installed in the independent cavity. The side bend of the mounting bracket 2 and the pressure plate 5 form a left-right limiting.

[0031] Among them, the bracket 1, as the basic component fixed to the elevator shaft wall, provides stable support and limitation for the mounting bracket 2 through its U-shaped groove structure. The mounting bracket 2, through its side and bottom bends, closely cooperates with the upper and lower bends of the bracket 1, forming vertical and rearward limitations, ensuring the stable position of the mounting bracket 2 within the vibration isolation space. The bearing plate 5 divides the vibration isolation space into two independent cavities, providing the necessary separation and support for the installation of the bidirectional vibration isolation assembly.

[0032] Specifically, as shown in the figure, the bidirectional vibration isolation assembly includes a forward vibration isolation unit and a reverse vibration isolation unit. The forward and reverse vibration isolation units are respectively located in two independent cavities at the front and rear of the vibration isolation space. The forward and reverse vibration isolation units are damping element A8 and damping element B, respectively. The damping element A8 and damping element B are arranged one in front of the other on both sides of the pressure plate 5. A metal plate 9 is provided on the side of the damping element A8 away from the pressure plate 5, and a nut is provided on the metal plate 9. The mounting bracket 2, damping element B, pressure plate 5, damping element A8, and metal plate 9 are fixed together by tightening bolts 10. The mounting bracket, damping element B, and tightening bolts 10 cooperate to form a forward vibration isolation system, and the damping element A8, metal plate 9, pressure plate 5, and tightening bolts 10 cooperate to form a reverse vibration isolation system.

[0033] Specifically, in use, the invention uses the pre-tightening force to tighten the bolts by contacting the outer surface of the mounting bracket, which forces the damping elements A8 and B to compress towards the two surfaces of the pressure plate. When the elevator is running, the frontal impact vibration is isolated by the damping element B, and the vibration on the pre-tightening bolts can be isolated by the damping element A8, so that the vibration energy generated during the elevator operation is absorbed by the vibration damping elements.

[0034] Specifically, as shown in the figure, both damping element A8 and damping element B are plate-shaped structures. Damping element B is composed of a first damping element 6 and a second damping element 7 connected in series. The first damping element 6 and the second damping element 7 have different materials and damping coefficients, which can enhance the damping element's ability to withstand loads and absorb vibrations of different frequencies. It is worth mentioning that the specific materials of the damping elements are common knowledge in the field of elevator technology and can be easily obtained by those skilled in the art from relevant existing technologies, so they will not be described in detail here.

[0035] Specifically, as shown in the figure, the upper bent edge of the mounting bracket 2 is connected to the plate surface of the mounting bracket 2 by a reinforcing rib 4. The upper bent edge of the mounting bracket 2 is fixed to one end of the guide rail bracket 3 by a fixing bolt 11. During use, the upper bent edge of the mounting bracket 2 experiences torsional torque, which is transmitted to the front of the mounting bracket through the reinforcing rib 4, thus achieving force transmission and direction change.

[0036] Specifically, as shown in the figure, the length of the upper bent edge of the code holder 1 is longer than the length of the lower bent edge. In the installed state, there is a first gap 12 between the upper bent edge of the code holder 1 and the back of the mounting bracket 2, a second gap 13 between the lower bent edge of the code holder 1 and the lower bent edge of the mounting bracket 2, a third gap 14 between the upper bent edge of the code holder 1 and the damping element B, and a fourth gap 15 between the lower bent edge of the code holder 1, the lower bent edge of the mounting bracket 2 and the damping element B.

[0037] In use, by setting the second gap 13, the mounting bracket bears the rotational torque. With the pre-tightening bolt as the rotation center, the mounting bracket is subjected to a downward force. The force of the upper bending edge of the mounting bracket is transmitted to the lower bending edge of the mounting bracket through the reinforcing rib. The lower bending edge of the mounting bracket and the lower bending edge of the bracket form a rigid contact, which produces a limiting effect.

[0038] Similarly, the purpose of setting the first gap 12, the third gap 14, and the fourth gap 15 is to ensure that when the mounting bracket is subjected to rotational torque, the vibration isolation system can move slightly along the gap when under force, and when the rotational torque disappears, the vibration isolation system can automatically return to its original position, maintaining the overall flexibility and stability of the device.

[0039] This invention, by adding a damping vibration isolation device between the elevator guide rail and the elevator shaft wall, can absorb the low-frequency resonance generated by the continuous impact of rollers on the guide rail and the static vibration generated by the machine room-less main unit. This significantly reduces the transmission of low-frequency vibration "energy" between the elevator guide rail and the elevator shaft wall, reducing the propagation of sound energy and providing residents with a quiet and comfortable living environment. This invention is highly adaptable and safe, fully considering the failure of damping components under abnormal operating conditions. The vibration isolation device is protected by mechanical safety limits in the metal structure and can be directly installed in existing elevator shafts.

[0040] 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.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An elevator shaft damping and vibration isolation device, installed between the elevator shaft wall and the elevator guide rails, characterized in that, It includes a bracket fixed to the elevator shaft wall, a mounting bracket that cooperates with the bracket to form a vibration isolation assembly, and a guide rail bracket for connecting the vibration isolation assembly and the elevator guide rail; wherein, a vibration isolation space is formed between the bracket and the mounting bracket, and a bidirectional vibration isolation component is installed in the vibration isolation space.

2. The elevator shaft damping and vibration isolation device according to claim 1, characterized in that, The bracket is a U-shaped groove structure with upper and lower bent edges, and the mounting bracket is a rectangular plate structure. The mounting bracket has bent edges on all four sides, namely upper, lower, and side bent edges. The side and lower bent edges of the mounting bracket bend towards the bracket, and the upper bent edge of the mounting bracket bends in the opposite direction. The side bent edges of the mounting bracket are embedded inside the upper and lower bent edges of the bracket, forming a limit on the vertical direction of the mounting bracket. The lower bent edge of the mounting bracket coincides with the thickness direction projection plane of the lower bent edge of the bracket, forming a single-direction limit on the rearward direction of the mounting bracket. The bracket and the mounting bracket are assembled facing each other to form the vibration isolation space.

3. The elevator shaft damping and vibration isolation device according to claim 2, characterized in that, A pressure plate is fixedly installed in the U-shaped groove of the bracket. The pressure plate divides the vibration isolation space into two independent cavities, and the bidirectional vibration isolation component is installed in the independent cavity. The side bend of the mounting bracket and the pressure plate form a left-right limiting.

4. The elevator shaft damping and vibration isolation device according to claim 3, characterized in that, The bidirectional vibration isolation assembly includes a forward vibration isolation unit and a reverse vibration isolation unit, which are respectively located in two independent cavities at the front and rear of the vibration isolation space. The forward vibration isolation unit and the reverse vibration isolation unit are damping element A and damping element B, respectively. Damping element A and damping element B are arranged one in front of the other on both sides of the pressure plate. A metal plate is provided on the side of damping element A away from the pressure plate, and a nut is provided on the metal plate. The mounting bracket, damping element B, pressure plate, damping element A, and metal plate are fixed together by tightening bolts. The mounting bracket, damping element B and tightening bolts cooperate to form a forward vibration isolation system, and the damping element A, metal plate, pressure plate and tightening bolts cooperate to form a reverse vibration isolation system.

5. The elevator shaft damping and vibration isolation device according to claim 4, characterized in that, Both damping element A and damping element B are plate-shaped structures. Damping element B is composed of a first damping element and a second damping element connected in series. The first damping element and the second damping element have different materials and damping coefficients.

6. The elevator shaft damping and vibration isolation device according to claim 5, characterized in that, The upper bent edge of the mounting bracket is connected to the plate surface of the mounting bracket by a reinforcing rib.

7. The elevator shaft damping and vibration isolation device according to claim 6, characterized in that, The upper bent edge of the mounting bracket is fixed to one end of the guide rail bracket by fixing bolts.

8. The elevator shaft damping and vibration isolation device according to claim 7, characterized in that, The upper bent edge of the bracket is longer than the lower bent edge. In the installed state, there is a first gap between the upper bent edge of the bracket and the back of the mounting bracket, a second gap between the lower bent edge of the bracket and the lower bent edge of the mounting bracket, a third gap between the upper bent edge of the bracket and the damping element B, and a fourth gap between the lower bent edge of the bracket, the lower bent edge of the mounting bracket, and the damping element B.

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