Building ventilation pipeline fitting capable of reducing noise

Abstract

The utility model discloses a noise reduction building ventilating duct fitting, which comprises a first arc-shaped plate, a second arc-shaped plate is placed at the first arc-shaped plate, one end and the other end of the first arc-shaped plate are both rotatably connected with blocks, the two groups of blocks are both connected with round rods, the two groups of round rods are both in threaded connection with threaded sleeves, and the threaded sleeves are in threaded connection with the first arc-shaped plate and the second arc-shaped plate. Pressing blocks movably penetrate through the two groups of round rods, and springs are in clearance fit with the two groups of round rods. By means of rotation of the block body and the round rod, the spring enables the pressing block to abut against the groove body, and compared with traditional bolt connection, the advantages are remarkable. During mounting and dismounting, only the round rod needs to be rotated, the process is simplified, and time and labor are saved. And the spring continuously abuts against the pipeline and can be self-adaptive along with vibration of the pipeline, looseness and noise are avoided, and the pipeline is stabilized. Meanwhile, the arc-shaped plates can be tightly attached to the pipeline, gaps are reduced, fluid turbulence and vortexes are restrained, contact is more uniform, and friction noise is reduced.

Description

Technical Field

[0001] This utility model relates to the field of building ventilation technology, and in particular to a noise-reducing building ventilation duct accessory. Background Technology

[0002] In building ventilation systems, the proper use of ventilation duct fittings is crucial for ensuring effective ventilation. However, existing methods of fixing ventilation ducts have several problems. Traditional bolt fixing is not only cumbersome to install and disassemble, but also prone to loosening due to vibrations caused by fluid flow within the duct over long-term use, leading to insecure duct fixation and noise. Furthermore, gaps between the duct and the fixing device can create turbulence and vortices in the fluid, further exacerbating noise pollution. In addition, friction between the duct and the fixing device also generates noise, affecting the acoustic environment inside the building. Therefore, a new type of ventilation duct fitting is urgently needed to solve these problems and achieve effective noise reduction. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a noise-reducing building ventilation duct accessory.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A noise-reducing building ventilation duct fitting includes a first arc-shaped plate, a second arc-shaped plate placed on the first arc-shaped plate, blocks rotatably connected to one end and the other end of the first arc-shaped plate, round rods connected to both sets of blocks, threaded sleeves threadedly connected to both sets of round rods, pressure blocks movably passing through both sets of round rods, and springs with clearance fit to both sets of round rods. One end and the other end of each set of springs contact the threaded sleeves and pressure blocks respectively. A groove is formed at one end and the other end of the second arc-shaped plate, and multiple sets of pressure blocks contact the corresponding grooves respectively.

[0006] Preferably, a rod is connected to the first arc-shaped plate, and a sleeve is provided at the rod. The rod moves through the sleeve. Both the rod and the sleeve are rectangular. A screw is threaded to the rod, and a handle is connected to the screw.

[0007] Preferably, rubber strips are adhered to both the first and second arc-shaped plates.

[0008] Preferably, a second rubber pad is adhered to the contact point between the two sets of pressure blocks and the corresponding groove.

[0009] Preferably, both sets of pressure blocks are connected to a lever at one end and the other end.

[0010] Preferably, a base plate is connected to the sleeve, and the base plate is rotatably connected to the screw.

[0011] Preferably, a first rubber pad is adhered to the bottom plate, and through holes are provided at all four corners of the bottom plate.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. Through the cooperation between the first arc plate, the second arc plate, the block, the round rod, the threaded sleeve, the spring, the pressure block, and the groove, the block and the round rod rotate to engage, and the spring holds the pressure block against the groove. Disassembly is performed by simply closing the first and second arc plates and rotating the round rod to position the pressure block. Compared to traditional bolt tightening, this greatly simplifies the process and saves time and labor costs. The continuous clamping force provided by the spring adapts to pipeline vibration, preventing loose bolts and noise issues, ensuring pipeline stability. Simultaneously, the spring clamping ensures the first and second arc plates fit tightly against the pipeline, reducing gaps and preventing turbulence and vortices. It also ensures more uniform contact between the first and second arc plates and the pipeline, reducing friction noise.

[0014] 2. By coordinating the sleeve, rod, screw, and handle, the screw is driven to rotate by the handle, moving the rod upward at the sleeve. The rod can then adjust the placement height of the first arc plate and the second arc rod. When there is an error between the placement height of the pipe and the first and second arc plates, adjustments can be made to ensure that the first and second arc plates are connected to the pipe. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a noise-reducing building ventilation duct accessory proposed in this utility model;

[0016] Figure 2 for Figure 1 Schematic diagram of the structure of the round rod, threaded sleeve and spring;

[0017] Figure 3 for Figure 2 Schematic diagram of the structure of the intermediate pressure block, the lever, and the second rubber pad;

[0018] Figure 4 for Figure 1 Schematic diagram of the structure of the central rod, sleeve, and handle;

[0019] Figure 5 for Figure 1 A schematic diagram of the structure of the mid-base plate, the first rubber pad, and the through hole.

[0020] In the diagram: 1. First arc-shaped plate; 2. Second arc-shaped plate; 3. Block; 4. Round rod; 5. Threaded sleeve; 6. Spring; 7. Pressure block; 8. Groove; 9. Rubber strip; 10. Rod; 11. Sleeve; 12. Screw; 13. Handle; 14. Base plate; 15. First rubber pad; 16. Through hole; 17. Paddle; 18. Second rubber pad. Detailed Implementation

[0021] 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.

[0022] Example 1, referring to Figures 1 to 5 A noise-reducing building ventilation duct fitting includes a first arc-shaped plate 1, a second arc-shaped plate 2 placed on the first arc-shaped plate 1, and blocks 3 rotatably connected to one end and the other end of the first arc-shaped plate 1. Round rods 4 are connected to both sets of blocks 3, and threaded sleeves 5 are threadedly connected to both sets of round rods 4. By rotating the threaded sleeves 5, the threaded sleeves 5 can be separated from the round rods 4, allowing a spring 6 to be removed from the round rods 4 for replacement. Alternatively, the threaded sleeves 5 can be moved closer to the pressure block 7 to compress the spring 6 to varying degrees. The spring 6 presses the pressure block 7 against the groove 8 to varying degrees. Both sets of round rods 4 have pressure blocks 7 that move through them, and both sets of round rods 4 have springs 6 that are fitted with a gap. One end of each set of springs 6 contacts the threaded sleeve 5 and the pressure block 7, respectively. One end of the second arc-shaped plate 2 has a groove 8, and multiple sets of pressure blocks 7 contact their corresponding grooves 8. The pressing action of the spring 6 ensures that the first arc-shaped plate 1 and the second arc-shaped plate 2 fit tightly against the pipe, reducing the gap between the pipe and the arc-shaped plate. This prevents turbulence and vortices from forming in the gap during ventilation, thus reducing noise caused by unstable fluid flow. Furthermore, the elasticity of the spring 6 absorbs the energy of pipe vibration, reducing the transmission of vibration from the pipe to the arc-shaped plate and then to the surrounding environment, thereby reducing noise caused by vibration and effectively improving the acoustic environment inside the building.

[0023] In this embodiment, a rod 10 is connected to the first arc-shaped plate 1, and a sleeve 11 is provided at the rod 10. The rod 10 moves through the sleeve 11. Both the rod 10 and the sleeve 11 are rectangular. This rectangular design can effectively prevent the rod 10 from rotating inside the sleeve 11, ensuring its stability during height adjustment. A screw 12 is threaded to the rod 10, and a handle 13 is connected to the screw 12. By rotating the handle 13, the screw 12 can be easily driven to rotate, thereby enabling the rod 10 to move up or down inside the sleeve 11. This allows for precise adjustment of the placement height of the first arc-shaped plate 1 and the second arc-shaped plate 2, ensuring they can perfectly adapt to ventilation ducts at different installation heights. Rubber strips 9 are adhered to both the first arc-shaped plate 1 and the second arc-shaped plate 2. The rubber strips 9 have good flexibility and sound absorption properties, and can not only fill... The small gap that may exist between the arc plate and the pipe reduces the noise generated by fluid leakage and can also buffer the vibration generated during pipe operation, further reducing the transmission of noise. The contact points between the two sets of pressure blocks 7 and the corresponding grooves 8 are all bonded with second rubber pads 18. The second rubber pads 18 can increase the friction between the pressure blocks 7 and the grooves 8, ensuring that the pressure blocks 7 will not easily fall out of the grooves 8 during long-term use. At the same time, it can also avoid friction noise generated by direct contact between metal parts. One end and the other end of the two sets of pressure blocks 7 are connected to the levers 17. The sleeve 11 is connected to the base plate 14, which is rotatably connected to the screw 12. The base plate 14 is bonded with a first rubber pad 15. The first rubber pad 15 can play the role of shock absorption and anti-slip, preventing the accessories from sliding on the installation surface, and also reducing the transmission of noise generated by vibration to the installation surface. In addition, through holes 16 are provided at all four corners of the base plate 14. By connecting fasteners, such as expansion bolts, in the through holes 16, the base plate 14 can be firmly installed on the wall, the ground or other supporting structure, ensuring the stable installation of the entire ventilation duct fitting.

[0024] The working principle of this embodiment is as follows: In use, fasteners can be connected to the through holes 16 at the base plate 14, and the base plate 14 can be installed at the corresponding position, such as a wall or the ground. After completion, if there is an error in the placement height of the first arc plate 1 and the second arc plate 2 relative to the pipe, the handle 13 drives the screw 12 to rotate, which moves the rod 10 upward within the sleeve 11. The rod 10 can then adjust the placement height of the first arc plate 1 and the second arc plate 2. After adjustment, the pipe is brought into contact with the first arc plate 1, and the second arc plate 2 is placed with... When the first arc-shaped plate 1 contacts the pipe, place the pipe between the first arc-shaped plate 1 and the second arc-shaped plate 2. After placement, hold the lever 17 and rotate the block 3 and the round rod 4. Simultaneously, use the lever 17 to align the pressure block 7 with the groove 8 of the second arc-shaped plate 2. With the help of the spring force 6, the pressure block 7 can be moved into the groove 8 to fix the first arc-shaped plate 1 and the second arc-shaped plate 2, thereby fixing the pipe. After fixing, if the pipe vibrates due to operation, the spring 6 can act as a buffer, reducing vibration transmission and noise. When it is necessary to disassemble the pipe, rotate the round rod 4 in the opposite direction and use the lever 17 to remove the pressure block 7 from the groove 8, easily separating the first arc-shaped plate 1 and the second arc-shaped plate 2. If the pipe height needs to be adjusted again later, the operation of rotating the screw 12 can be repeated. In addition, rubber strips 9 can be placed on the inner walls of the first arc-shaped plate 1 and the second arc-shaped plate 2 to further enhance the noise reduction effect and optimize the pipe's operating environment.

[0025] 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 noise-reducing building ventilation duct fitting comprising a first curved plate (1), characterised in that, The first arc-shaped plate (1) is placed with the second arc-shaped plate (2), one end and the other end of the first arc-shaped plate (1) are rotatably connected with the block (3), two groups of the block (3) are connected with the circular rod (4), two groups of the circular rod (4) are threadedly connected with the threaded sleeve (5), two groups of the circular rod (4) are movably penetrated through the pressing block (7), two groups of the spring (6) are gap-fitted at the circular rod (4), one end and the other end of two groups of the spring (6) are respectively in contact with the threaded sleeve (5) and the pressing block (7), one end and the other end of the second arc-shaped plate (2) are provided with the groove (8), and a plurality of groups of the pressing block (7) are respectively in contact with the corresponding groove (8).

2. A noise reducing building vent duct fitting according to claim 1, wherein, The first arc-shaped plate (1) is connected with the rod body (10), the rod body (10) is provided with the sleeve body (11), the rod body (10) movably penetrates the sleeve body (11), the rod body (10) and the sleeve body (11) are rectangular, the rod body (10) is threadedly connected with the screw rod (12), and the screw rod (12) is connected with the handle (13).

3. A noise reducing building vent duct fitting according to claim 1, wherein, The first arc-shaped plate (1) and the second arc-shaped plate (2) are adhered with the rubber strip (9).

4. A noise reducing building vent duct fitting according to claim 1 wherein, The contact portions of two groups of the pressing block (7) and the corresponding groove (8) are adhered with the second rubber pad (18).

5. A noise reducing building vent duct fitting according to claim 1 wherein, One end and the other end of two groups of the pressing block (7) are connected with the push piece (17).

6. A noise reducing building vent duct fitting according to claim 2, wherein, The sleeve body (11) is connected with the bottom plate (14), and the bottom plate (14) is rotatably connected with the screw rod (12).

7. A noise reducing building vent duct fitting according to claim 6, wherein The bottom plate (14) is adhered with the first rubber pad (15), and the bottom plate (14) is provided with the through hole (16) at four corners.

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