Environment-friendly silencing air pipe

Abstract

The utility model discloses an environment-friendly noise reduction air pipe which comprises an air pipe body, a first flange is fixedly connected to one side of the outer surface of the air pipe body, notches are formed in the four corners of the outer surface of the first flange, and a baffle is fixedly connected to the side, close to the notches, of the outer surface of the first flange. According to the environment-friendly noise reduction air pipe, through the arrangement of the baffles, the first gaskets, the screw rods, the screw blocks and the second gaskets, the first flanges and the second flanges of the two air pipes make contact, the screw rods are rotated to move to the inner side faces of the baffles through the notches, and when the screw blocks are rotated to a certain position, the two air pipes are connected into a whole, so that the operation convenience is improved; according to the locking device, the structure is simple, mounting and dismounting are more convenient, the mounting requirement is met, the baffle prevents the threaded rod from rotating after clamping connection, the limiting effect is achieved, meanwhile, the first gasket and the second gasket are matched with each other and meshed together during fastening, the wedge-shaped effect is formed, the effective locking state is always kept, and the using safety is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of air ducts, in particular to an environment-friendly sound-absorbing air duct. Background Art

[0002] The ventilation duct, abbreviated as the air duct, is an infrastructure for air circulation and reduction of harmful gas concentration. The air duct is mainly applied in industrial and construction projects, and the application fields mainly involve: the purification system of the dust-free workshop in the electronic industry, the purification system of the sterile workshop for medicine and food, the central air-conditioning system of hotels, shopping malls, hospitals, factories and office buildings, the exhaust air ducts such as dust removal, smoke exhaust and oil absorption for industrial pollution control, and the air supply ducts for industrial environment or comfortable posts, etc.

[0003] After retrieval, Chinese Patent Publication (Announcement) No. CN214838957U discloses a highly antibacterial environment-friendly medical sound-absorbing air duct, including: an outer protective layer, a heat-insulating and sound-absorbing layer, and a highly antibacterial coating. The outer protective layer is adhesively bonded to the outer surface of the heat-insulating and sound-absorbing layer, and the highly antibacterial coating is coated on the inner surface of the heat-insulating and sound-absorbing layer; the pipe of the sound-absorbing air duct is formed by folding the heat-insulating and sound-absorbing layer, the cross-section of the pipe is rectangular, and a "V"-shaped slot is opened at the right angle of the outer wall of the pipe. Due to the certain thickness of the heat-insulating and sound-absorbing layer, by opening a "V"-shaped slot at the right angle of the outer wall of the pipe, the heat-insulating and sound-absorbing layer can be directly folded to form a pipe without splicing, the manufacturing difficulty is reduced, the overall strength of the air duct is improved, the antibacterial effect is enhanced, and the service life is greatly increased.

[0004] Although the air duct of the above patent has a strong antibacterial effect, most air ducts are connected and fixed by screws. This connection method is very troublesome during installation and disassembly, wasting time and energy. At the same time, after long-term use, the screws are prone to thread slipping, resulting in potential safety hazards in the air duct connection. Therefore, it is necessary to design an environment-friendly sound-absorbing air duct to solve the above problems. Summary of the Utility Model

[0005] The main purpose of the utility model is to provide an environment-friendly sound-absorbing air duct, which can effectively solve the problems in the background art.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] Environmentally friendly sound-absorbing air duct, including an air duct. One side of the outer surface of the air duct is fixedly connected with a first flange. Notches are opened at the four corners of the outer surface of the first flange. A baffle is fixedly connected to the side of the outer surface of the first flange close to the notch. A first gasket is fixedly connected to the side of the inner surface of the first flange close to the notch; the other side of the outer surface of the air duct is fixedly connected with a second flange. Support rods are fixedly connected to the four corners of the outer surface of the second flange. Screws are rotatably connected to the outer surfaces of the support rods. Threaded blocks are threadedly connected to the outer surfaces of the screws. Extension rods are fixedly connected to both sides of the outer surface of the threaded blocks. A second gasket is fixedly connected to one end of the threaded block.

[0008] In order to achieve the effect of avoiding rigid connection, as the environmentally friendly sound-absorbing air duct of the present invention, a first sealing gasket is fixedly connected to one end of the air duct, and a second sealing gasket is fixedly connected to the other end of the air duct.

[0009] In order to achieve the effect of strengthening the connection strength, as the environmentally friendly sound-absorbing air duct of the present invention, a card slot is opened on the side of the outer surface of the air duct close to the first sealing gasket, and a card board is fixedly connected to the side of the outer surface of the air duct close to the second sealing gasket.

[0010] In order to achieve the effect of strengthening the connection sealing performance, as the environmentally friendly sound-absorbing air duct of the present invention, a sealing ring is fixedly connected to one side of the inner surface of the card slot.

[0011] In order to achieve the effect of strengthening the structural strength, as the environmentally friendly sound-absorbing air duct of the present invention, an expansion joint is fixedly connected to the middle of the outer surface of the air duct, and reinforcing ribs are fixedly connected to both sides of the outer surface of the expansion joint.

[0012] In order to achieve the effect of facilitating heat preservation, as the environmentally friendly sound-absorbing air duct of the present invention, a heat preservation layer is fixedly connected to the inner surface of the air duct, and a glass fiber cotton layer is fixedly connected to the inner surface of the heat preservation layer.

[0013] In order to achieve the effect of facilitating sound absorption, as the environmentally friendly sound-absorbing air duct of the present invention, a sound insulation layer is fixedly connected to the inner surface of the glass fiber cotton layer, and a sound absorption layer is fixedly connected to the inner surface of the sound insulation layer.

[0014] In order to achieve the effect of strengthening corrosion resistance, as the environmentally friendly sound-absorbing air duct of the present invention, a corrosion-resistant layer is fixedly connected to the inner surface of the sound absorption layer.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In the present utility model, through the arrangement of the baffle, the first gasket, the screw rod, the screw block and the second gasket, the first flange and the second flange of the two air ducts are brought into contact. By rotating the screw rod, it moves through the notch to the inner side of the baffle. When the screw block rotates to a certain position, the two air ducts are connected into a whole, improving the convenience of operation, making the installation and disassembly more convenient, meeting the installation requirements. The baffle prevents the screw rod from rotating after being clamped, playing a role in limiting. At the same time, the first gasket and the second gasket fit with each other. When tightened, the two mesh together to form a wedge effect and are locked by the mechanical structure, and can always maintain an effective locked state under continuous vibration and long-term use, thus ensuring the firmness and stability when the air ducts are connected and ensuring the safety during use.

[0017] 2. In the present utility model, through the arrangement of the first sealing gasket, the second sealing gasket, the card slot, the clamping plate and the sealing ring, when the two air ducts are connected, the first sealing gasket and the second sealing gasket are in contact, thus providing a certain buffer space for the connection at the port of the air duct, preventing damage to the air duct caused by long-term rigid connection, and at the same time strengthening the sealing performance at the end face connection of the two. The clamping plate is clamped inside the card slot, which is convenient for strengthening the strength at the connection of the air ducts, ensuring the accuracy of splicing, and avoiding deviation when the air ducts are connected. The sealing ring contacts with the clamping plate when the clamping plate is installed, which can further strengthen the sealing performance at the inner side connection of the air ducts. The double-sealing structure has a good sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the front view structural schematic diagram of the embodiment of the present utility model;

[0019] Figure 2 is the side view structural schematic diagram of the embodiment of the present utility model;

[0020] Figure 3 is the cross-sectional plane structural schematic diagram of the embodiment of the present utility model;

[0021] Figure 4 is the screw rod structural schematic diagram of the embodiment of the present utility model;

[0022] Figure 5 is the inner wall structural schematic diagram of the air duct of the embodiment of the present utility model.

[0023] In the figure: 1, air duct; 2, first flange; 3, notch; 4, baffle; 5, first gasket; 6, second flange; 7, support rod; 8, screw rod; 9, screw block; 10, extension rod; 11, second gasket; 12, first sealing gasket; 13, second sealing gasket; 14, card slot; 15, clamping plate; 16, sealing ring; 17, expansion joint; 18, reinforcing rib; 19, thermal insulation layer; 20, glass fiber cotton layer; 21, sound insulation layer; 22, sound absorption layer; 23, corrosion-resistant layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] Embodiment

[0026] As Figures 1-5 shown, the environment-friendly sound-absorbing air duct includes an air duct 1. On one side of the outer surface of the air duct 1, a first flange 2 is fixedly connected. At the four corners of the outer surface of the first flange 2, notches 3 are respectively opened. On the side of the outer surface of the first flange 2 close to the notches 3, a baffle 4 is fixedly connected. On the side of the inner surface of the first flange 2 close to the notches 3, a first gasket 5 is fixedly connected. On the other side of the outer surface of the air duct 1, a second flange 6 is fixedly connected. At the four corners of the outer surface of the second flange 6, support rods 7 are respectively fixedly connected. A screw rod 8 is rotatably connected to the outer surface of the support rod 7. A screw block 9 is threadedly connected to the outer surface of the screw rod 8. On both sides of the outer surface of the screw block 9, extension rods 10 are respectively fixedly connected. One end of the screw block 9 is fixedly connected with a second gasket 11.

[0027] During specific use, through the settings of the notches 3, the baffle 4, the first gasket 5, the screw rod 8, the screw block 9 and the second gasket 11, the first flange 2 and the second flange 6 are respectively fixed on both sides of the outer surface of the air duct 1, which can strengthen the structural strength of the connection part when the air duct 1 is connected. During installation, the first flange 2 and the second flange 6 of the two air ducts 1 are made to contact each other. The screw rod 8 is rotated so that it moves to the inner side of the baffle 4 through the notch 3. The extension rod 10 is used to rotate the screw block 9. The extension rod 10 is convenient for the staff to apply force with their hands, increasing the convenience of use. When the screw block 9 rotates to a certain position, the two air ducts 1 are connected into a whole, improving the operation convenience, making the installation and disassembly more convenient, meeting the installation requirements. The baffle 4 prevents the screw rod 8 from getting stuck and rotating, playing a limiting role. At the same time, the first gasket 5 and the second gasket 11 fit each other. When tightened, the two are meshed together to form a wedge effect, locking by mechanical structure rather than friction, and can always maintain an effective locking state under continuous vibration and long-term use, thus ensuring the firmness and stability of the connection of the air duct 1 and the safety during use.

[0028] In this embodiment, a first sealing gasket 12 is fixedly connected to one end of the air duct 1, and a second sealing gasket 13 is fixedly connected to the other end of the air duct 1.

[0029] During specific use, through the settings of the first gasket 12 and the second gasket 13, when the two air ducts 1 are connected, the first gasket 12 contacts the second gasket 13, thereby providing a certain buffer space for the connection at the port of the air duct 1, preventing damage to the air duct 1 caused by long-term rigid connection, and at the same time strengthening the sealing performance at the joint of their end faces.

[0030] In this embodiment, a clamping groove 14 is formed on one side of the outer surface of the air duct 1 close to the first gasket 12, and a clamping plate 15 is fixedly connected to one side of the outer surface of the air duct 1 close to the second gasket 13.

[0031] During specific use, through the settings of the clamping groove 14 and the clamping plate 15, the clamping plate 15 is clamped inside the clamping groove 14, which is convenient for strengthening the strength at the joint of the air duct 1, ensuring the accuracy of splicing, and avoiding deviation when the air duct 1 is connected.

[0032] In this embodiment, a sealing ring 16 is fixedly connected to one side of the inner surface of the clamping groove 14.

[0033] During specific use, through the setting of the sealing ring 16, the sealing ring 16 contacts the clamping plate 15 when the clamping plate 15 is installed, which can further strengthen the sealing performance at the joint of the inner side surface of the air duct 1. The double-sealing structure has a good sealing effect.

[0034] In this embodiment, an expansion joint 17 is fixedly connected to the middle of the outer surface of the air duct 1, and reinforcing ribs 18 are fixedly connected to both sides of the outer surface of the expansion joint 17.

[0035] During specific use, through the settings of the expansion joint 17 and the reinforcing ribs 18, the expansion joint 17 improves the toughness of the air duct 1. Adding reinforcing ribs 18 at both ends of the expansion joint 17 can further improve the structural strength of the air duct 1.

[0036] In this embodiment, a heat-insulating layer 19 is fixedly connected to the inner side surface of the air duct 1, and a glass fiber cotton layer 20 is fixedly connected to the inner side surface of the heat-insulating layer 19.

[0037] During specific use, through the settings of the heat-insulating layer 19 and the glass fiber cotton layer 20, the heat-insulating layer 19 is asbestos, and when used in cooperation with the glass fiber cotton layer 20, it can improve the heat-insulating performance of the air duct 1 and avoid temperature loss when transmitting hot air or cold air.

[0038] In this embodiment, a sound-insulating layer 21 is fixedly connected to the inner side surface of the glass fiber cotton layer 20, and a sound-absorbing layer 22 is fixedly connected to the inner side surface of the sound-insulating layer 21.

[0039] During specific use, through the settings of the sound-insulating layer 21 and the sound-absorbing layer 22, the sound-insulating layer 21 effectively blocks the noise generated by the air flow inside the air duct 1, and the sound-absorbing layer 22 reduces the noise, reducing noise transmission, further reducing noise, and improving the practicability of the air duct 1.

[0040] In this embodiment, a corrosion-resistant layer 23 is fixedly connected to the inner side surface of the sound-absorbing layer 22.

[0041] During specific use, due to the setting of the corrosion-resistant layer 23, the corrosion-resistant layer 23 is arranged on the innermost side of the air duct 1 and contacts the wind and air inside the air duct 1, which can enhance the corrosion resistance of the air duct 1, prevent the corrosive air from damaging the air duct 1, and extend the service life.

[0042] Working principle: During use, the first flange 2 of the two air ducts 1 is in contact with the second flange 6, the clamping plate 15 is clamped inside the clamping groove 14 to ensure the accuracy of splicing. The sealing ring 16 contacts the clamping plate 15 during its installation, which can further enhance the sealing performance of the connection at the inner side surface of the air duct 1. Rotate the screw rod 8 so that it moves to the inner side surface of the baffle 4 through the notch 3. Use the extension rod 10 to rotate the screw block 9. When the screw block 9 rotates to a certain position, the two air ducts 1 are connected into a whole. The baffle 4 prevents the screw rod 8 from rotating after being clamped. The first gasket 5 and the second gasket 11 fit with each other to maintain an effective locking state, thereby ensuring the firmness and stability when the air duct 1 is connected. The first sealing gasket 12 and the second sealing gasket 13 provide a certain buffer space for the connection at the port of the air duct 1, prevent the air duct 1 from being damaged due to long-term rigid connection, and at the same time can enhance the sealing performance at the connection of their end faces. The expansion joint 17 improves the toughness of the air duct 1, and the reinforcing rib 18 can further improve the structural strength of the air duct 1. The heat-insulating layer 19 and the glass fiber cotton layer 20 are used in cooperation to improve the heat-insulating performance of the air duct 1 and avoid temperature loss when transmitting hot air or cold air. The sound-insulating layer 21 and the sound-absorbing layer 22 reduce noise transmission, and the corrosion-resistant layer 23 prevents the corrosive air from damaging the air duct 1 and extends the service life.

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly sound-absorbing air duct, comprising an air duct (1), characterized in that: A first flange (2) is fixedly connected to one side of the outer surface of the air duct (1); notches (3) are provided at four corners of the outer surface of the first flange (2); a baffle (4) is fixedly connected to one side of the outer surface of the first flange (2) close to the notch (3); and a first gasket (5) is fixedly connected to one side of the inner side surface of the first flange (2) close to the notch (3); A second flange (6) is fixedly connected to the other side of the outer surface of the air duct (1); support rods (7) are fixedly connected to the four corners of the outer surface of the second flange (6); a screw rod (8) is rotatably connected to the outer surface of the support rod (7); a screw block (9) is threadedly connected to the outer surface of the screw rod (8); extension rods (10) are fixedly connected to both sides of the outer surface of the screw block (9); and a second gasket (11) is fixedly connected to one end of the screw block (9).

2. The environmentally friendly sound-absorbing air duct according to claim 1 is characterized in that: One end of the air duct (1) is fixedly connected to a first sealing gasket (12), and the other end of the air duct (1) is fixedly connected to a second sealing gasket (13).

3. The environmentally friendly sound-absorbing air duct according to claim 2 is characterized in that: A clamping groove (14) is provided on a side of the outer surface of the air duct (1) close to the first sealing gasket (12), and a clamping plate (15) is fixedly connected to a side of the outer surface of the air duct (1) close to the second sealing gasket (13).

4. The environmentally friendly sound-absorbing air duct according to claim 3 is characterized in that: A sealing ring (16) is fixedly connected to one side of the inner side of the slot (14).

5. The environmentally friendly sound-absorbing air duct according to claim 1 is characterized in that: An expansion joint (17) is fixedly connected to the middle of the outer surface of the air duct (1), and reinforcing ribs (18) are fixedly connected to both sides of the outer surface of the expansion joint (17).

6. The environmentally friendly sound-absorbing air duct according to claim 1 is characterized in that: The inner side surface of the air duct (1) is fixedly connected to a heat-insulating layer (19), and the inner side surface of the heat-insulating layer (19) is fixedly connected to a glass fiber cotton layer (20).

7. The environmentally friendly sound-absorbing air duct according to claim 6 is characterized in that: The inner side surface of the glass fiber wool layer (20) is fixedly connected to a sound insulation layer (21), and the inner side surface of the sound insulation layer (21) is fixedly connected to a sound absorbing layer (22).

8. The environmentally friendly sound-absorbing air duct according to claim 7 is characterized in that: The inner side surface of the sound-absorbing layer (22) is fixedly connected with a corrosion-resistant layer (23).

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