Noise isolation device for metro decoration construction

Abstract

The utility model relates to the technical field of metro decoration construction noise isolation, and discloses a metro decoration construction noise isolation device which comprises a bottom plate and pulley blocks fixedly installed at the lower end of the bottom plate at equal intervals. The bottom plate slides in the stretching direction through the pulley block at the lower end, the inflatable air bag is unfolded, the inflatable air bag is inflated, the inflated inflatable air bag expands due to the inflated air, and at the moment, the inflatable air bag is divided into three layers through the sound insulation plate in the middle of the inflatable air bag; noise can be weakened by the inflatable air bags layer by layer when transmitted outwards through the inflatable air bags, and the noise isolation device for metro decoration construction can be inflated and expanded when needing to be used through cooperation between the inflatable air bags and the sound insulation plates. And when not in use, the sound insulation weight is lighter than that of a traditional fixed plate due to the arrangement of the material, so that the movement is convenient.

Description

Technical Field

[0001] This utility model relates to the field of noise isolation technology for subway decoration and construction, specifically a noise isolation device for subway decoration and construction. Background Technology

[0002] The scientific definition of noise is, from a physiological point of view, any sound that interferes with people's rest, study, and work, or interferes with the sounds people want to hear—that is, unwanted sounds—is collectively referred to as noise. When noise has adverse effects on people and the surrounding environment, it constitutes noise pollution. During subway renovation and construction, due to the large scale of the project and the long construction period required, noise isolation is necessary to minimize the impact on surrounding residents.

[0003] For example, a noise isolation device for subway decoration construction, disclosed in CN117328740A, belongs to the field of noise isolation technology. It solves the problems of inconvenient disassembly, assembly, and movement of existing noise isolation devices. The device includes a base with a moving component installed inside. The moving component includes a motor, with a first rotating shaft mounted at the motor's output end. A first pulley is fixedly connected to the first rotating shaft. Second pulleys are symmetrically arranged at both ends of the first pulley, and a second rotating shaft is installed inside each second pulley. Gears are symmetrically mounted at both ends of the second rotating shaft. A first rack is meshed with one side of each gear, and a roller is provided at the bottom end of the first rack. A second rack is meshed with the other side of each gear, and a fixed foot is installed at the bottom end of the second rack. The moving component of this invention can freely switch between moving and fixed modes, adapting to the need for continuous relocation during decoration work. When not in use, the isolation panel can be folded up, reducing its space occupation and facilitating device placement.

[0004] The aforementioned patent allows for free switching between mobile and fixed modes, adapting to the need for continuous relocation during renovation work. However, due to its adjustable and detachable structure, noise can still be transmitted through the gaps at the joints during actual use. Setting only one layer of sound insulation structure is not very effective in reducing noise, and there are still certain shortcomings in actual use.

[0005] Therefore, we propose a noise isolation device for subway renovation and construction to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide a noise isolation device for subway decoration and construction, so as to solve the problem that the adjustable and detachable structure mentioned in the background art still allows noise to be transmitted through the gaps at the connection points during actual use, and the sound insulation structure alone is not very effective in reducing noise, and still has certain defects in actual use.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a noise isolation device for subway decoration construction, comprising a base plate and a pulley group equidistantly fixedly installed at the lower end of the base plate, a fixing plate one and a fixing plate two fixedly installed at both ends of the base plate, an inflatable airbag fixedly installed at the upper end of the base plate, the two sides of the inflatable airbag being fixedly connected to the side walls of the fixing plate one and the fixing plate two respectively, a cavity being opened inside the inflatable airbag, and a sound insulation board being fixedly installed in the middle of the cavity.

[0008] Preferably, the base plate has an internal mounting groove, and a telescopic component is fixedly installed between the two side walls of the mounting groove.

[0009] Preferably, a limiting structure is installed on both side walls of the fixing plate, and the limiting structure includes a connecting plate fixedly installed on one side wall of the fixing plate, and the connecting plate is provided with a sliding groove.

[0010] Preferably, each of the sliding grooves has a locking block slidably installed inside it, and a spring is fixedly installed between the side wall of the locking block and the inner wall of the sliding groove. One side of the locking block is an arc-shaped surface.

[0011] Preferably, the two side walls of the fixing plate are provided with connecting grooves, and the side walls of the connecting grooves are provided with slots. The connecting plates are slidably connected in the connecting grooves, and the slots are slidably connected in the slots.

[0012] Preferably, the side wall of the fixing plate is provided with an air inlet groove and an air vent groove, both of which are connected to the cavity. An air inlet is provided on the outside of the air inlet groove, and an air vent is provided on the outside of the air vent groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. When using this device for noise isolation in subway decoration and construction, the device can be stretched out first. The base plate slides in the stretching direction through the pulley group at the lower end, and the inflatable airbag unfolds. Inflation of the inflatable airbag occurs due to the gas. At this time, the inflatable airbag is divided into three layers by the sound insulation board in the middle. When the noise is transmitted outward through the inflatable airbag, it can be weakened by the layers of the inflatable airbag. This noise isolation device for subway decoration and construction can be inflated again when needed through the cooperation between the inflatable airbag and the sound insulation board. When not in use, it is lighter in sound insulation weight than traditional fixed board due to the material settings, making it easy to move.

[0015] 2. With the cooperation of the connecting groove, the card slot, the connecting plate, the sliding groove, the card block, the spring, the inflatable airbag, the chamber and the sound insulation plate, the air in the inflatable airbag is released when the device is not in use. The device can be stored and fixed by the cooperation between the limiting structure and the fixing plate, which can prevent the airbag from being punctured and leaking air when idle or during transportation, and has a good protective effect on the airbag. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall cross-sectional three-dimensional structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the overall transverse cross-sectional three-dimensional structure of this utility model;

[0019] Figure 4 This is a three-dimensional cross-sectional structural diagram of the air intake slot system of this utility model;

[0020] Figure 5 This is an enlarged three-dimensional structural diagram of point A in the figure of this utility model.

[0021] In the diagram: 1. Base plate; 11. Mounting groove; 12. Telescopic assembly; 2. Pulley block; 3. Fixing plate one; 31. Air inlet groove; 32. Air vent groove; 4. Fixing plate two; 41. Connecting groove; 42. Slot; 5. Air inlet; 6. Air vent; 7. Limiting structure; 71. Connecting plate; 72. Slide groove; 73. Locking block; 74. Spring; 8. Inflatable airbag; 81. Chamber; 82. Sound insulation panel. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1: Please refer to Figure 1 - Figure 3 A noise isolation device for subway decoration construction includes a base plate 1 and a pulley group 2 that is equidistantly fixed at the lower end of the base plate 1. Fixed plates 3 and 4 are fixedly installed at both ends of the base plate 1, and an inflatable airbag 8 is fixedly installed at the upper end of the base plate 1. The two sides of the inflatable airbag 8 are fixedly connected to the side walls of the fixed plates 3 and 4, respectively. A chamber 81 is opened inside the inflatable airbag 8, and a sound insulation plate 82 is fixedly installed in the middle of the chamber 81.

[0024] In this embodiment: When using this device for noise isolation in subway decoration and construction, the device can be stretched and unfolded first. When stretched and unfolded, the bottom plate 1 at the lower end extends and slides in the stretching direction through the pulley group 2 at the lower end. During the stretching process, the inflatable airbag 8 unfolds. When the device is stretched to the required length, air can be inflated into the inflatable airbag 8. The inflatable airbag 8 expands due to the inflated gas. At this time, the airbag 8 is divided into three layers in the middle due to the setting of the sound insulation plate 82. When the noise is transmitted outward through the inflatable airbag 8, it can be weakened by the layers of the inflatable airbag 8. The subway decoration and construction noise isolation device can be inflated and expanded when needed through the cooperation between the inflatable airbag 8 and the sound insulation plate 82. When not in use, it is lighter in sound insulation weight than traditional fixed plates due to the material setting, making it easy to move.

[0025] Example 2: This example is an improvement on Example 1. For details, please refer to [link / reference]. Figure 2 - Figure 5 The base plate 1 has an installation groove 11 inside. A telescopic component 12 is fixedly installed between the two side walls of the installation groove 11. The base plate 1 has a structure with rigid plates on both sides and a telescopic structure in the middle. The base plate 1 can be freely extended and retracted by the telescopic component 12.

[0026] Limiting structures 7 are installed on both side walls of the fixed plate 3. The limiting structure 7 includes a connecting plate 71 fixedly installed on the side wall of the fixed plate 3. The connecting plate 71 is provided with a sliding groove 72. The limiting structure 7 is used to limit the distance between the fixed plate 3 and the fixed plate 4 when shrinking.

[0027] Each groove 72 has a locking block 73 slidably installed inside it. A spring 74 is fixedly installed between the side wall of the locking block 73 and the inner wall of the groove 72. One side of the locking block 73 is an arc-shaped surface. When the arc-shaped surface of the locking block 73 is squeezed, it can be pushed and slid into the groove 72.

[0028] Both sides of the fixed plate 4 are provided with connecting grooves 41, and the side walls of the connecting grooves 41 are provided with slots 42. The connecting plates 71 are slidably connected in the connecting grooves 41, and the slots 73 are slidably connected in the slots 42. The connecting grooves 41 and the slots 42 are provided to cooperate with the limiting structure 7 to fix the fixed plate 3 and the fixed plate 4.

[0029] The side wall of the fixed plate 3 is provided with an air inlet groove 31 and an air outlet groove 32. Both the air inlet groove 31 and the air outlet groove 32 are connected to the inside of the chamber 81. An air inlet 5 is provided on the outside of the air inlet groove 31 and an air outlet 6 is provided on the outside of the air outlet groove 32. The air inlet groove 31 and the air outlet groove 32 can be used to inflate or deflate the inside of the inflatable airbag 8.

[0030] In this embodiment: When using the device, in the initial state, fixing plate 3 and fixing plate 4 are tightly fitted together. First, the air inlet groove 31 and air outlet groove 32 on the side wall are opened to communicate with the outside. At this time, the locking blocks 73 on both sides can be pushed into the sliding groove 72. After the locking blocks 73 on both sides are pushed into the sliding groove 72, fixing plate 3 or fixing plate 4 can be pulled to both sides. The connecting plate 71 slides outward along the connecting groove 41. When pulled, outside air enters the interior of the inflatable airbag 8 along the air inlet groove 31 and air outlet groove 32 until the device is fully inflated. The device is stretched to its maximum length. At this point, the vent 6 is used to block the vent groove 32, and air is introduced into the inflatable airbag 8 through the air inlet groove 31. The air inflated causes both airbags 8 to expand until they are fully inflated. After inflation, the air inlet 5 is sealed. When the device is not in use, the air in the inflatable airbag 8 is released. The device can be stored and fixed by the cooperation between the limiting structure 7 and the fixing plate 4, which can prevent the airbag from being punctured and leaking air when it is idle or during transportation, thus providing good protection for the airbag.

[0031] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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. A noise isolation device for subway decoration construction, comprising a base plate (1) and a pulley system (2) equidistantly fixedly installed at the lower end of the base plate (1), characterized in that: Fixed plates 1 (3) and 2 (4) are fixedly installed at both ends of the base plate (1), and an inflatable airbag (8) is fixedly installed at the upper end of the base plate (1). The two sides of the inflatable airbag (8) are fixedly connected to the side walls of the fixed plates 1 (3) and 2 (4) respectively. A chamber (81) is opened inside the inflatable airbag (8), and a sound insulation plate (82) is fixedly installed in the middle of the chamber (81).

2. The noise isolation device for subway decoration construction according to claim 1, characterized in that: The base plate (1) has an installation groove (11) inside, and a telescopic component (12) is fixedly installed between the two side walls of the installation groove (11).

3. The noise isolation device for subway decoration construction according to claim 2, characterized in that: Limiting structures (7) are installed on both sides of the fixed plate (3). The limiting structures (7) include connecting plates (71) fixedly installed on the side walls of the fixed plate (3). Each connecting plate (71) has a sliding groove (72).

4. A noise isolation device for subway decoration construction according to claim 3, characterized in that: Each of the slide grooves (72) is slidably installed with a locking block (73). A spring (74) is fixedly installed between the side wall of the locking block (73) and the inner wall of the slide groove (72). One side of the locking block (73) is an arc-shaped surface.

5. A noise isolation device for subway decoration construction according to claim 4, characterized in that: The two side walls of the fixing plate 2 (4) are provided with connecting grooves (41), and the side walls of the connecting grooves (41) are provided with slots (42). The connecting plates (71) are slidably connected in the connecting grooves (41), and the slots (73) are slidably connected in the slots (42).

6. A noise isolation device for subway decoration construction according to claim 5, characterized in that: The side wall of the fixed plate (3) is provided with an air inlet groove (31) and an air vent groove (32). The air inlet groove (31) and the air vent groove (32) are connected to the cavity (81). An air inlet (5) is provided on the outside of the air inlet groove (31), and an air vent (6) is provided on the outside of the air vent groove (32).

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