CN-122009935-A - Damping vibration isolation device for elevator shaft

CN122009935ACN 122009935 ACN122009935 ACN 122009935ACN-122009935-A

Abstract

The damping vibration isolation device for the elevator shaft 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 arranged in the vibration isolation space. According to the invention, the damping vibration isolation device is additionally arranged between the elevator guide rail and the elevator shaft wall, so that low-frequency resonance generated by continuous knocking of the guide rail by the roller and static vibration generated by the machine-room-less main machine can be absorbed, the transmission of low-frequency vibration energy of a structural body between the elevator guide rail and the elevator shaft wall is greatly reduced, the transmission of acoustic energy is reduced, and a quiet and comfortable living environment is provided for residents.

Inventors

LI SHUYU
CHEN HUA

Assignees

日立电梯（中国）有限公司

Dates

Publication Date: 20260512
Application Date: 20241112

Claims (8)

1. The damping vibration isolation device for the elevator shaft is arranged between the elevator shaft wall and the elevator guide rail and is characterized by comprising 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 used for being 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 arranged in the vibration isolation space.
2. The damping vibration isolation device for the elevator hoistway according to claim 1, wherein the code support is of a U-shaped groove structure with upper and lower bending edges, the mounting support is of a rectangular plate-shaped structure, the four edges of the mounting support are respectively provided with the bending edges which are upper, lower and side bending edges, the side bending edges and the lower bending edge of the mounting support are bent towards the code support, the upper bending edge of the mounting support is bent towards the opposite direction, the side bending edge of the mounting support is embedded into the inner sides of the upper and lower bending edges of the code support to form limit on the upper and lower directions of the mounting support, the lower bending edge of the mounting support is overlapped with the thickness direction projection surface of the lower bending edge of the code support to form unidirectional limit on the rear direction of the mounting support, and the code support and the mounting support are assembled in opposite directions to form the vibration isolation space.
3. The damping vibration isolation device for the elevator hoistway according to claim 2, wherein a bearing plate is fixedly arranged in the U-shaped groove of the code support, the bearing plate divides the vibration isolation space into a front independent cavity and a rear independent cavity, the bidirectional vibration isolation assembly is arranged in the independent cavity, and the side bending edge of the mounting bracket and the bearing plate form a limit in the left-right direction.
4. The elevator hoistway damping vibration isolation device according to claim 3, wherein the bidirectional vibration isolation assembly comprises a forward vibration isolation unit and a reverse vibration isolation unit, the forward vibration isolation unit and the reverse vibration isolation unit are respectively arranged in a front independent cavity and a rear independent cavity of a vibration isolation space, the forward vibration isolation unit and the reverse vibration isolation unit are respectively a damping element A and a damping element B, the damping element A and the damping element B are arranged on two sides of the bearing plate in a front-back mode, a metal plate is arranged on one side, far away from the bearing plate, of the damping element A, nuts are arranged on the metal plate, a fixing bracket, the damping element B, the bearing plate, the damping element A and the metal plate are formed and fixed through tightening bolts, the mounting bracket, the damping element B and the tightening bolts are matched to form a forward vibration isolation system, and the damping element A, the metal plate and the bearing plate are matched with the tightening bolts to form a reverse vibration isolation system.
5. The damping vibration isolator for elevator hoistway according to claim 4, wherein the damping elements a and B are plate-shaped structures, the damping element B is formed by connecting a first damping element and a second damping element in series, and the materials and damping coefficients of the first damping element and the second damping element are different.
6. The damping vibration isolator for an elevator hoistway according to claim 5, wherein the upper folded edge of the mounting bracket is connected to the plate surface of the mounting bracket by a reinforcing rib.
7. The damping vibration isolator according to claim 6, wherein the upper folded edge of the mounting bracket is fixedly connected with one end of the guide rail bracket by a fixing bolt.
8. The damping vibration isolation device of claim 7, wherein the upper bent edge of the code support has a length longer than the lower bent edge, and in the installed state, a first gap exists between the upper bent edge of the code support and the back of the installation support, a second gap exists between the lower bent edge of the code support and the lower bent edge of the installation support, a third gap exists between the upper bent edge of the code support and the damping element B, and a fourth gap exists between the lower bent edge of the code support, the lower bent edge of the installation support and the damping element B.

Description

Damping vibration isolation device for elevator shaft Technical Field The invention relates to the technical field of elevators, in particular to a damping vibration isolation device for an elevator hoistway. Background With the vigorous development of the real estate industry in recent years, the design and installation technology of elevators as indispensable vertical vehicles in modern buildings has also been significantly advanced. However, driven by market demands for efficient use of building space and reduced shared area, the trend of increasingly close association between elevator shafts and building body structures, while optimizing building design to some extent, has also presented new problems and challenges. In particular, many developers have adopted strategies to design the elevator hoistway immediately adjacent to the building walls, and even directly to make the elevator hoistway common to the walls, in order to maximize the effective use area inside the building. Although this practice effectively reduces the shared area, it is a problem that the effects of various vibrations and noises generated during the operation of the elevator on the resident environment of the resident are increasingly prominent. Vibration generated by a machine room-less main machine of an elevator in the running process and rolling vibration generated when rolling guide shoes roll on guide rails are one of main sources of elevator noise. These vibrations are transmitted through the guide means, the guide rail, of the elevator to the wall of the building immediately adjacent to the elevator shaft. Because the rigid structural bodies such as the wall body and the like have good sound transmission performance, the vibration and the noise can easily penetrate through the wall body and enter a resident room to form room noise. The problem of room noise caused by elevator operation not only affects the living comfort of the resident, but also can have adverse effects on the daily life and physical and mental health of the resident. Therefore, how to effectively solve the noise transmission problem in the elevator operation process becomes an important subject to be solved in the current building design and elevator installation technology. Disclosure of Invention The invention aims to provide a damping vibration isolation device for an elevator hoistway, which aims to solve the technical problems pointed out in the background art. In order to solve the technical problems, the invention adopts the following technical scheme: The damping vibration isolation device of the elevator shaft is arranged between the elevator shaft wall and the 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 used for being 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 arranged in the vibration isolation space. Further, the sign indicating number holds in the palm for having the U type groove-shaped structure of bending edge from top to bottom, the installing support is rectangular platy structure, the four sides of installing support all are provided with the limit of bending edge, are respectively upper and lower, side bending edge, the side bending edge of installing support, lower bending edge orientation the sign indicating number holds in the palm the bending, the side bending edge of installing support imbeds the limit inboard of bending edge about the sign indicating number holds in the palm forms the spacing to the installing support upper and lower direction, the lower bending edge of installing support overlaps with the lower bending edge thickness direction projection face coincidence of sign indicating number support, forms the unilateral spacing backward to the installing support, sign indicating number holds in the palm, the installing support is assembled in opposite directions and is formed the vibration isolation space. Further, the U-shaped groove of sign indicating number support is fixed and is provided with the bearing plate, the bearing plate will vibration isolation space divide into two independent cavities from front to back, two-way vibration isolation subassembly sets up in independent cavity, the side of installing support turn over the limit of limit with the bearing plate formation left and right directions. Further, the bidirectional vibration isolation assembly comprises a forward vibration isolation unit and a reverse vibration isolation unit, the forward vibration isolation unit and the reverse vibration isolation unit are respectively arranged in a front independent cavity and a rear independent cavity of a vibration isolation space, the forward vibration isolation unit and th