Double-layer steel frame floating building vibration isolation and noise reduction equipment

Abstract

The utility model belongs to building technical field especially a double -deck steel frame floating construction vibration isolation and noise reduction equipment, to the single elastic layer damping performance of current floating construction and the problem that floating construction needs to measure and secondary cutting material, present the following scheme, including the protective fence, fixedly connected in the floor top, four baffle, along the protective fence inboard circumference fixedly connected, two ends of four baffle all are equipped with T type guide rail and T type slot matched with T type guide rail, in the utility model, through the cross type rubber block high damping of sound insulation cotton block pressure absorption low -frequency vibration energy, simultaneously by rubber pad and the multiple sandwich of polyurethane layer constitute the circular hole of polyurethane layer surface and set up and excite sound wave vortex effect dissipation high -frequency energy, thereby, solve the broadband vibration isolation failure problem of traditional elastic layer damping single -faced and the baffle prefabricated T type interface complete quick insertion, internally lay sound insulation cotton block and fill sealant and reduce construction difficulty.

Description

Technical Field

[0001] This utility model relates to the field of building technology, and in particular to a double-layer steel frame floating vibration isolation and noise reduction device. Background Technology

[0002] To meet the functional requirements of various buildings, a large number of electromechanical equipment are installed inside. During operation, these equipment, due to their high power, generate significant vibrations and high-decibel noise, adversely affecting the normal life and work of people inside the building. This is especially true for buildings with strict vibration and noise control requirements, where vibration reduction and noise reduction are even more stringent. A layer of vibration isolation and noise reduction floating equipment needs to be built under the electromechanical equipment. However, existing floating structures still have the following problems:

[0003] 1. Currently, the elastic layer used in floating foundations has limited damping performance. For example, the floating foundation frame for electromechanical equipment disclosed in CN221523631U uses rubber for both the perimeter isolation and the elastic layer, which is difficult to effectively dissipate broadband vibration energy.

[0004] 2. Currently, floating construction requires on-site measurement and cutting of various materials, which are then laid layer by layer. In particular, when laying the middle layer of vibration damping pads, it is necessary to carefully mark lines and position them, and then place special vibration damping blocks one by one, which is inefficient. Therefore, a double-layer steel frame floating vibration isolation and noise reduction device is proposed. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as the limited damping performance of the elastic layer used in floating construction and the need for measurement and secondary cutting of materials during floating construction. Therefore, this invention proposes a double-layer steel frame floating vibration isolation and noise reduction device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A double-layer steel frame floating vibration isolation and noise reduction device includes a protective fence, which is fixedly connected to the top of the floor;

[0008] Four partitions are fixedly connected along the inner circumference of the protective fence. Each of the four partitions has a T-shaped guide rail and a T-shaped groove that matches the T-shaped guide rail at both ends. Adjacent partitions are connected by the T-shaped guide rail and the T-shaped groove to form a square frame.

[0009] Multiple sound-absorbing cotton blocks are laid flat on top of the floor and located within the square frame;

[0010] The sound insulation cotton block includes a rubber pad, two polyurethane layers and a cross-shaped rubber block. The two polyurethane layers are respectively bonded to the upper and lower sides of the rubber pad, and the rubber block is embedded in the sound insulation cotton block to divide the sound insulation cotton block into four pieces of the same size.

[0011] Galvanized steel sheet is laid flat on top of the sound insulation cotton block;

[0012] A waterproof membrane is provided to cover the top of the galvanized steel sheet.

[0013] A reinforced concrete layer is poured on top of the waterproof membrane.

[0014] In one possible design, the partition comprises a waterproof rock wool board and a cross-linked polyethylene (XLPE) pad, the XLPE pad being laminated to the side of the waterproof rock wool board facing the center of the square frame.

[0015] In one possible design, steel bars are laid inside the reinforced concrete layer, arranged in a grid pattern.

[0016] In one possible design, the waterproof membrane is made of PVC, with its edges folded up to cover the top edge of the partition, forming a continuous waterproof barrier.

[0017] In one possible design, the sound-absorbing cotton blocks are arranged in a matrix within a square frame, with gaps between the blocks filled with elastic sealant to form a buffer layer.

[0018] In one possible design, the surface of the polyurethane layer has multiple circular holes.

[0019] In this application:

[0020] Select floating equipment of different sizes according to the size of the equipment. The partition is quickly installed through T-type interface and fixed and limited by the outer side by protective fence.

[0021] The square frame formed by the partition is used to lay sound insulation cotton blocks flat. The rubber blocks in the sound insulation cotton blocks provide support and prevent the sound insulation cotton blocks from being compressed and deformed.

[0022] A galvanized steel plate and a waterproof membrane are laid on top of the sound insulation cotton block, and a reinforced concrete layer is laid on the waterproof membrane to provide rigid support;

[0023] After being blocked by the reinforced concrete layer, the equipment vibration and noise pass through the waterproof membrane and galvanized steel plate in turn and enter the sound insulation cotton block.

[0024] The sound insulation cotton block absorbs vibrations through the high damping properties of the rubber block, and the circular hole structure of the polyurethane layer excites the sound wave eddy current effect. Vibrations and noises are isolated and attenuated by three layers of high damping materials: polyurethane layer, rubber pad, and polyurethane layer, before reaching the base plate, completing multiple attenuation and isolation of vibrations and noises.

[0025] Beneficial effects: In this utility model, the double-layer steel frame floating vibration isolation and noise reduction device uses components such as rubber blocks, sound insulation cotton blocks, rubber pads, and polyurethane layers in combination. The cross-shaped rubber blocks of the sound insulation cotton blocks absorb low-frequency vibration energy under high damping pressure. At the same time, the multiple sandwich layers composed of rubber pads and polyurethane layers, combined with the circular holes opened on the surface of the polyurethane layer, excite the sound wave eddy current effect to dissipate high-frequency energy, thereby absorbing vibration and noise energy from multiple aspects and solving the problem of broadband vibration isolation failure caused by the single damping of traditional elastic layers.

[0026] In this utility model, the double-layer steel frame floating vibration isolation and noise reduction device uses components such as T-shaped guide rails, grooves, sound insulation cotton blocks, and partitions in combination. The T-shaped guide rails and grooves are inserted to form a rigid frame. The sound insulation cotton blocks are laid flat inside and filled with sealant. No secondary cutting of materials is required, which reduces construction difficulty and speeds up the construction efficiency.

[0027] In this invention, the cross-shaped rubber block of the sound insulation cotton block absorbs low-frequency vibration energy under high damping pressure. At the same time, the multiple interlayers composed of rubber pads and polyurethane layers, combined with the circular holes on the surface of the polyurethane layer, excite the sound wave eddy current effect to dissipate high-frequency energy. Thus, it solves the problem of broadband vibration isolation failure caused by the single damping of traditional elastic layers. The prefabricated T-shaped interface of the partition allows for quick insertion. The sound insulation cotton block is laid flat inside and filled with sealant to reduce construction difficulty. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the main view structure of a double-layer steel frame floating vibration isolation and noise reduction device proposed in this utility model;

[0029] Figure 2 This is an exploded view structural diagram of a double-layer steel frame floating vibration isolation and noise reduction device proposed in this utility model;

[0030] Figure 3 This is a schematic diagram of the sound insulation cotton block structure of a double-layer steel frame floating vibration isolation and noise reduction device proposed in this utility model;

[0031] Figure 4 This is a partially enlarged structural diagram of the partition of a double-layer steel frame floating vibration isolation and noise reduction device proposed in this utility model.

[0032] In the diagram: 1. Protective fence; 2. Reinforced concrete layer; 201. Reinforcing bar; 3. Partition; 301. Waterproof cotton slab; 302. Cross-linked polyethylene pad; 303. T-shaped guide rail; 304. T-shaped groove; 4. Sound insulation cotton block; 401. Rubber pad; 402. Polyurethane layer; 403. Rubber block; 5. Galvanized steel plate; 6. Waterproof membrane. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0034] In one implementation case, refer to Figures 1-4 A floating vibration isolation and noise reduction device includes: a protective fence 1, which is fixedly connected to the top of the floor to establish a rigid constraint boundary and prevent the material from collapsing to the surroundings during construction;

[0035] In this embodiment, four partitions 3 are fixedly connected along the inner circumference of the protective fence 1. Each of the four partitions 3 has a T-shaped guide rail 303 and a T-shaped groove 304 that matches the T-shaped guide rail 303. Adjacent partitions 3 are connected by inserting the T-shaped guide rail 303 and the T-shaped groove 304 to form a square frame. The square frame can be quickly built by inserting, which speeds up the construction.

[0036] In particular, multiple sound-insulating cotton blocks 4 are laid flat and covered on the top of the floor and located within the square frame;

[0037] In addition, the sound insulation cotton block 4 includes a rubber pad 401, two polyurethane layers 402 and a cross-shaped rubber block 403. The two polyurethane layers 402 are respectively bonded to the upper and lower sides of the rubber pad 401. The rubber block 403 is embedded in the sound insulation cotton block 4 to divide the sound insulation cotton block 4 into four pieces of the same size.

[0038] Galvanized steel sheet 5 is laid flat on top of the sound insulation cotton block 4;

[0039] A waterproof membrane 6 is applied to the top of the galvanized steel plate 5;

[0040] It should be noted that the reinforced concrete layer 2 is poured on top of the waterproof membrane 6.

[0041] This application can be used in the field of building technology, or in other fields applicable to this application.

[0042] In another implementation case, refer to Figures 1-4 A double-layer steel frame floating vibration isolation and noise reduction device is applied to the field of building technology. The partition 3 includes a waterproof rock wool board 301 and a cross-linked polyethylene pad 302. The cross-linked polyethylene pad 302 is composited on the side of the waterproof rock wool board 301 facing the center of the square frame to improve the circumferential material damping and prevent vibration and noise from being transmitted from the periphery.

[0043] In this implementation case, steel bars 201 are laid inside the reinforced concrete layer 2. The steel bars 201 are arranged in a grid pattern to increase the structural strength of the reinforced concrete layer 2.

[0044] In particular, the waterproof membrane 6 is made of PVC, and its edges are folded up to cover the top edge of the partition 3 to form a continuous waterproof barrier, which isolates the liquid water at the top and prevents water from flowing down and corroding the bottom material.

[0045] In addition, the sound insulation cotton blocks 4 are arranged in a matrix within a square frame, with gaps between them filled with elastic sealant to form a buffer layer.

[0046] It should be noted that the surface of the polyurethane layer 402 has multiple circular holes, which form an acoustic eddy current effect and isolate the transmission of sound waves.

[0047] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0048] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A double-layer steel frame floating vibration isolation and noise reduction device, characterized in that, include: Protective fence (1), fixedly connected to the top of the floor; Four partitions (3) are fixedly connected along the inner circumference of the protective fence (1). T-shaped guide rails (303) and T-shaped grooves (304) matching the T-shaped guide rails (303) are provided at both ends of the four partitions (3). Adjacent partitions (3) are connected by T-shaped guide rails (303) and T-shaped grooves (304) to form a square frame. Multiple sound-insulating cotton blocks (4) are laid flat on top of the floor and located within the square frame; The sound insulation cotton block (4) includes a rubber pad (401), two polyurethane layers (402) and a cross-shaped rubber block (403). The two polyurethane layers (402) are respectively bonded to the upper and lower sides of the rubber pad (401). The rubber block (403) is embedded in the sound insulation cotton block (4) to divide the sound insulation cotton block (4) into four pieces of the same size. A galvanized steel sheet (5) is laid flat on top of the sound insulation cotton block (4); A waterproof membrane (6) is placed on top of the galvanized steel sheet (5); A reinforced concrete layer (2) is poured on top of the waterproof membrane (6).

2. The double-layer steel frame floating vibration isolation and noise reduction device according to claim 1, characterized in that, The partition (3) includes a waterproof rock wool board (301) and a cross-linked polyethylene pad (302), wherein the cross-linked polyethylene pad (302) is laminated to the side of the waterproof rock wool board (301) facing the center of the square frame.

3. The double-layer steel frame floating vibration isolation and noise reduction device according to claim 1, characterized in that, The reinforced concrete layer (2) is filled with steel bars (201), which are arranged in a grid pattern.

4. The double-layer steel frame floating vibration isolation and noise reduction device according to claim 1, characterized in that, The waterproof membrane (6) is made of PVC material, and its edges are folded up to cover the top edge of the partition (3) to form a continuous waterproof barrier.

5. The double-layer steel frame floating vibration isolation and noise reduction device according to claim 1, characterized in that, The sound insulation cotton blocks (4) are arranged in a matrix within a square frame, with gaps between them filled with elastic sealant to form a buffer layer.

6. The double-layer steel frame floating vibration isolation and noise reduction device according to claim 5, characterized in that, The polyurethane layer (402) has multiple circular holes on its surface.

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