Search

CN-121992903-A - Vibration reduction base and noise reduction curtain wall

CN121992903ACN 121992903 ACN121992903 ACN 121992903ACN-121992903-A

Abstract

The invention relates to the technical field of building outer protection structures and building vibration and noise reduction, in particular to a vibration reduction base and a noise reduction curtain wall, which comprise a first connecting piece and a second connecting piece which is rotationally connected to the first connecting piece, wherein a third connecting piece is rotationally arranged on the second connecting piece; the curtain wall comprises a first connecting piece, a second connecting piece, a first sliding way, a second blocking part and a supporting mechanism, wherein the first sliding way is arranged on the second connecting piece, the first blocking part is arranged on the first sliding way, the second sliding way is arranged on the third connecting piece, the second blocking part is arranged on the second sliding way, when the supporting mechanism is contacted with the first blocking part and the second blocking part, when the curtain wall body is subjected to vibration or acoustic energy in use, the curtain wall body can slightly move to realize energy consumption through slight deflection of the second connecting piece, and the flexible connection mode can ensure the connection strength and the connection stability of the curtain wall, has a certain buffering capacity and can avoid the sound bridge effect caused by the traditional rigid connection.

Inventors

  • Pu Pengxu
  • GUO RUI
  • SUN LIANGMING

Assignees

  • 武汉理工大学

Dates

Publication Date
20260508
Application Date
20260209

Claims (10)

  1. 1. The vibration reduction base is characterized by comprising a first connecting piece (1) and a second connecting piece (2) rotatably connected to the first connecting piece (1), wherein a third connecting piece (3) is rotatably arranged on the second connecting piece (2); the device also comprises a supporting mechanism (4) rotationally arranged on the second connecting piece (2); a first slideway (11) is arranged on the first connecting piece (1), and a first blocking part (111) is arranged on the first slideway (11); A second slideway (31) is arranged on the third connecting piece (3), and a second blocking part (311) is arranged on the second slideway (31); the two ends of the supporting mechanism (4) are respectively arranged in the first slideway (11) and the second slideway (31) in a sliding way; When the two ends of the supporting mechanism (4) are respectively abutted against the first blocking part (111) and the second blocking part (311), the supporting mechanism (4) is supported between the first connecting piece (1) and the third connecting piece (3), and the inclination angle of the supporting mechanism (4) is not one hundred eighty degrees.
  2. 2. The vibration damping base according to claim 1, characterized in that the first connecting piece (1) is provided with an upper connecting sleeve (12); an upper shaft sleeve (23) and a lower shaft sleeve (24) are arranged on the second connecting piece (2); a lower connecting sleeve (32) is arranged on the third connecting piece (3); a first connecting shaft (5) is arranged in the upper connecting sleeve (12) and the upper shaft sleeve (23); the lower connecting sleeve (32) and the lower shaft sleeve (24) are internally provided with a second connecting shaft (6).
  3. 3. Vibration damping base according to claim 2, characterized in that a third elastic damping element (51) is provided outside the first connecting shaft (5); A fourth elastic damping piece (61) is arranged outside the second connecting shaft (6); the third elastic damping piece (51) is arranged between the upper connecting sleeve (12) and the upper shaft sleeve (23); The fourth elastic damping piece (61) is arranged between the lower connecting sleeve (32) and the lower shaft sleeve (24).
  4. 4. The vibration-damping base according to claim 3, wherein the first connecting piece (1) and the third connecting piece (3) are L-shaped structures, and the first connecting piece (1) and the third connecting piece (3) are rotationally symmetrically arranged.
  5. 5. The vibration damping base according to any one of claims 1-4, wherein the supporting mechanism (4) comprises a supporting barrel (41) and a first elastic damping piece (42) arranged in the supporting barrel (41), supporting bodies (43) are slidably arranged at two ends of the supporting barrel (41), and the first elastic damping piece (42) is located between the two supporting bodies (43).
  6. 6. The vibration damping base according to claim 5, wherein the second connecting piece (2) is provided with a limiting ring (21), and a rubber sleeve (22) is arranged in the limiting ring (21); the outer wall of the supporting barrel (41) is provided with a rotating ball (45); The rotating ball (45) is rotatably arranged in the rubber sleeve (22).
  7. 7. The vibration-damping mount according to claim 6, wherein the support mechanism (4) further comprises a second elastic damping member (44) sleeved outside the support body (43).
  8. 8. The vibration damping mount according to claim 6 or 7, wherein an abutting portion (431) is provided at one end of the support body (43), and an extruding portion (432) is provided at one end of the support body (43); The pressing portion (432) is abutted against the first elastic damper (42).
  9. 9. A noise reduction curtain wall is characterized by comprising the vibration reduction base of any one of claims 1-8 and a curtain wall body (7); The curtain wall body (7) is arranged on the basal body through a plurality of vibration reduction bases.
  10. 10. The noise reduction curtain wall according to claim 9, wherein the top of the curtain wall body (7) is provided with a protruding part (71), and the bottom of the curtain wall body (7) is provided with a clamping part (72); a buffer part (721) is arranged in the clamping part (72); the side of the curtain wall body (7) is provided with a sealing strip (73).

Description

Vibration reduction base and noise reduction curtain wall Technical Field The invention relates to the technical field of building outer protection structures and building vibration reduction and noise reduction, in particular to a vibration reduction base and a noise reduction curtain wall. Background In modern building design, curtain is as building peripheral protection structure, not only needs to satisfy daylighting penetrating, energy-conserving heat preservation, building aesthetic core demand, but also needs to deal with the increasingly outstanding broadband noise pollution problem in urban environment. The current noise reduction technology of the building curtain wall focuses on the optimization of the panel, and the core thought is based on mass law and multilayer sound insulation principle, namely, sound energy is attenuated by utilizing acoustic impedance differences of different media by increasing glass thickness, arranging a hollow interlayer, adopting laminated glass and the like, and medium-high frequency air sound is blocked. However, the technology has obvious limitations that on one hand, the panel surface density is greatly increased or a multi-layer structure is overlapped to improve the low-frequency noise reduction effect, so that the whole weight of the curtain wall is increased, the material and construction cost is increased, the bearing capacity of a main structure of a building is also required to be higher, the development trend of light weight and low carbonization of a green building is opposite, and on the other hand, the technology completely ignores the key influence of the curtain wall bracket serving as a connecting hinge, so that the curtain wall bracket becomes a weak link of a noise reduction system. The curtain wall bracket is used as a connecting carrier of the panel and the main structure of the building, and rigid materials such as steel keels, aluminum alloy sections and the like are mostly adopted in the traditional design to be directly welded or bolted to form a rigid force transmission path. The rigid connection mode is extremely easy to cause the sound bridge effect, external vibration energy can be quickly transferred to the curtain wall panel through the support, so that the panel becomes a secondary radiation sound source, the noise reduction design of the front panel body is invalid, even if the high-performance hollow laminated glass is adopted, vibration can still bypass the sound insulation structure of the glass through the rigid support, and low-frequency noise is efficiently transferred into a room. In order to alleviate the problem of the sound bridge, some prior art attempts to add an elastic gasket such as a rubber pad at the joint of the bracket and the panel or the building main body, but the scheme has obvious defects that firstly, the damping performance of the damping material is insufficient, the vibration of a specific frequency band can be weakened only weakly, the vibration transmission requirement of broadband noise can not be covered, secondly, the integration of the elastic gasket, the bracket and the panel is poor, the elastic gasket is easy to age and deform after long-term use, the damping effect is attenuated rapidly, and meanwhile, the stability of the curtain wall structure is influenced. Therefore, a vibration reduction base and a noise reduction curtain wall are provided. Disclosure of Invention Therefore, the invention aims to solve the technical problem of improving the vibration and noise reduction effect of the curtain wall with the same or less thickness and weight. The technical problem is solved by the following technical scheme that the vibration reduction base comprises a first connecting piece and a second connecting piece which is rotationally connected to the first connecting piece, wherein a third connecting piece is rotationally arranged on the second connecting piece; The support mechanism is rotatably arranged on the second connecting piece; a first slideway is arranged on the first connecting piece, and a first blocking part is arranged on the first slideway; A second slideway is arranged on the third connecting piece, and a second blocking part is arranged on the second slideway; The two ends of the supporting mechanism are respectively arranged in the first slideway and the second slideway in a sliding way; When the two ends of the supporting mechanism are respectively abutted against the first blocking part and the second blocking part, the supporting mechanism is supported between the first connecting piece and the third connecting piece, and the inclination angle of the supporting mechanism is not one hundred eighty degrees. In a preferred embodiment of the vibration damping base, the first connecting piece is provided with an upper connecting sleeve; An upper shaft sleeve and a lower shaft sleeve are arranged on the second connecting piece; A lower connecting sleeve is arranged on the third connecting