A soundproof drainage pipe

Abstract

The utility model discloses a silencing drainage pipe, which relates to the field of drainage pipes and aims to solve the problem that the existing silencing pipes cannot effectively silence water when the pipes transport water from top to bottom. The key points of the technical solution are: the silencing drainage pipe comprises a drainage inner pipe, a protection frame is arranged outside the drainage inner pipe, an air bag is fixedly connected to the inner wall of the drainage inner pipe, a plurality of fixing plates are fixedly connected to the outer wall of the drainage inner pipe, and the fixing plates are slidably connected to the inner wall of the protection frame. The silencing drainage pipe of the utility model can reduce the impact of water flow on the drainage inner pipe and use the air bag to reduce the vibration conduction effect to avoid noise transmission. An ETFE film is also arranged to protect the pipe. The film has corrosion resistance and can prevent the drainage inner pipe from being corroded and causing the pipe wall to be thickened, so that the drainage inner pipe is more likely to transmit noise, thereby eliminating the noise emitted by the pipe and ensuring the quality of life of people in the building.

Description

Technical Field

[0001] The utility model relates to the field of drainage pipes, and more specifically, to a sound-absorbing drainage pipe. Background Art

[0002] Drainage pipes refer to pipes used to collect and discharge sewage, wastewater and rainwater. No matter where they are built, as long as they are used for drainage, they should be listed as drainage pipes. When drainage pipes are used in buildings, if there is a strong water flow passing through the drainage pipes, noise will be made, thus affecting the quality of life of people in the building.

[0003] A patent with publication number CN220816773U discloses a silencer pipe for building drainage, including an inner drainage pipe, the surface of which is provided with a plurality of mounting frames with U-shaped cross-sections, mounting blocks are fixed at both ends of the mounting frames, mounting holes are provided on the mounting blocks, the surface of the inner drainage pipe is provided with a sound insulation sleeve, the mounting frame is embedded in the sound insulation sleeve, a plurality of sound drainage channels are provided between the sound insulation sleeve and the inner drainage pipe, and both ends of the sound drainage channels extend to the side of the sound insulation sleeve close to the mounting block.

[0004] The silencer pipe in the above scheme can transmit the water flow noise to the ceiling and eliminate the noise through the ceiling, thereby ensuring people's quality of life and work efficiency and extending the service life of the drainage pipe.

[0005] Although this silencer pipe can transmit noise to the ceiling for elimination, it mainly transmits noise through the drainage channel that fits the ceiling. When the drainage pipe transports water from top to bottom, it cannot be used, causing the pipe to still make noise, affecting the quality of life of people in the building.

[0006] Therefore, new solutions need to be proposed to solve this problem. Utility Model Content

[0007] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a sound-absorbing drainage pipe. When the drainage inner pipe transports water from top to bottom, the impact of the water flow on the drainage inner pipe can be reduced and the air bag can be used to reduce the vibration conduction effect, thereby avoiding the transmission of noise and ensuring the quality of life of people in the building.

[0008] The above technical purpose of the utility model is achieved through the following technical scheme: a sound-absorbing drainage pipe, including an inner drainage pipe, a protective frame is provided on the outside of the inner drainage pipe, an air bag is fixedly connected to the inner wall of the inner drainage pipe, a plurality of fixed plates are fixedly connected to the outer wall of the inner drainage pipe, the fixed plates are slidably connected to the inner wall of the protective frame, a plurality of buffer parts for reducing the pressure of water flow on the inner drainage pipe are provided on the inner bottom side of the protective frame, and a resetting part for resetting the inner drainage pipe is provided on the inner wall of the protective frame.

[0009] The utility model is further configured as follows: the buffer component includes a plurality of sleeves fixedly connected to the inner bottom side of the protection frame and a positioning rod slidably connected to the sleeve, the inner bottom side of the sleeve and the bottom side of the positioning rod are connected by a spring, and the positioning rod is fixedly connected to the outer wall of the inner drainage pipe.

[0010] The utility model is further configured as follows: the reset member includes a fixed rod fixedly connected to the lower side of the fixed plate and a plurality of fixed blocks fixedly connected to the inner wall of the protection frame, and a plurality of the fixed blocks are each provided with a through groove for the sliding of the fixed rod, and the fixed rod is located between the fixed plate and the fixed block and is sleeved with a spring 2.

[0011] The utility model is further configured as follows: a plurality of gas cylinders are fixedly connected to the top side of the protection frame, a piston rod is slidably connected inside the gas cylinder, a through hole is opened on one side of the gas cylinder close to the protection frame, and the piston rod is fixedly connected to the inner drainage pipe.

[0012] The utility model is further configured as follows: a plurality of sound-absorbing cottons are fixedly connected to the inner wall of the protection frame.

[0013] The utility model is further configured as follows: an air valve core is fixedly connected to the outer wall of the protection frame, the air valve core penetrates the outer wall of the protection frame to the inside, an air pipe is fixedly connected to the valve core, the air pipe is fixedly connected to the airbag, and the valve core, the air pipe and the airbag are connected to each other.

[0014] The utility model is further configured as follows: a film is fixedly connected to the airbag.

[0015] The utility model is further configured as follows: the outer wall of the protection frame is wrapped with sound insulation cotton.

[0016] In summary, the utility model has the following beneficial effects: it can reduce the impact of water flow on the inner pipe of the drainage and use the airbag to reduce the vibration conduction effect, reduce the noise transmission, and set the sound-absorbing cotton and sound-insulating cotton to remove the remaining noise. An ETFE film is also provided to protect the pipeline. The film is corrosion-resistant and can prevent the inner pipe of the drainage from being corroded and causing the thickening of the pipe wall, making it easier for the inner pipe of the drainage to transmit noise, thereby eliminating the noise emitted by the pipeline and ensuring the quality of life of people in the building. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 The utility model is a cross-sectional view Figure 1 ;

[0019] Figure 3 The utility model is a cross-sectional view Figure 2 ;

[0020] Figure 4 The utility model is a cross-sectional view Figure 3 ;

[0021] Figure 5 The utility model is a cross-sectional view Figure 4 .

[0022] In the figure: 1. Drain inner pipe; 2. Protection frame; 3. Air bag; 4. Fixing plate; 5. Sleeve; 6. Positioning rod; 7. Spring 1; 8. Fixing rod; 9. Fixing block; 10. Through groove; 11. Spring 2; 12. Air cylinder; 13. Piston rod; 14. Through hole; 15. Silencing cotton; 16. Valve core; 17. Air pipe; 18. Film; 19. Sound insulation cotton. DETAILED DESCRIPTION

[0023] The utility model is described in detail below in conjunction with the accompanying drawings and embodiments.

[0024] A soundproof drainage pipe, such as Figure 1-Figure 5 As shown, it includes an inner drainage pipe 1, a protective frame 2 is provided on the outside of the inner drainage pipe 1, and an air bag 3 is fixedly connected to the inner wall of the inner drainage pipe 1, which can reduce the vibration conduction effect of water flow when impacting the inner drainage pipe 1 and reduce noise transmission. A plurality of fixing plates 4 are fixedly connected to the outer wall of the inner drainage pipe 1, and the fixing plates 4 are slidably connected to the inner wall of the protective frame 2. A plurality of buffers for reducing the pressure of water flow on the inner drainage pipe 1 are provided on the inner bottom side of the protective frame 2. A reset member for resetting the inner drainage pipe 1 is provided on the inner wall of the protective frame 2. When the water flow impacts the inner drainage pipe 1, the buffer member will shrink to reduce the impact effect of the water flow on the inner drainage pipe 1. When the water flow slows down, the reset member will drive the inner drainage pipe 1 to reset for the next use, thereby reducing the impact of the water flow on the inner drainage pipe 1 and utilizing the air bag 3 to reduce the vibration conduction effect and reduce noise transmission, thereby ensuring the quality of life of people in the building.

[0025] like Figure 2 , Figure 5 As shown, the buffer member includes a plurality of sleeves 5 fixedly connected to the inner bottom side of the protection frame 2 and a positioning rod 6 slidably connected to the sleeve 5. The inner bottom side of the sleeve 5 and the bottom side of the positioning rod 6 are connected by a spring 7. The positioning rod 6 is fixedly connected to the outer wall of the drainage inner pipe 1. When the water flow impacts the drainage inner pipe 1, the positioning rod 6 will approach the bottom side of the sleeve 5 and compress the spring 7. At this time, the impact effect of the water flow on the drainage inner pipe 1 is weakened, and then the reset member drives the drainage inner pipe 1 to reset in order to cope with the next impact.

[0026] like Figure 2 , Figure 3As shown, the reset member includes a fixed rod 8 fixedly connected to the lower side of the fixed plate 4 and a plurality of fixed blocks 9 fixedly connected to the inner wall of the protection frame 2. A through groove 10 is provided on the plurality of fixed blocks 9 for the fixed rod 8 to slide. The fixed rod 8 is provided with a spring 2 11 between the fixed plate 4 and the fixed block 9. When the water flow impacts the drainage inner tube 1, the fixed rod 8 will slide in the through groove 10 and drive the drainage inner tube 1 to move downward. At this time, the spring 2 11 is in a compressed state. When the water flow slows down, the spring 2 11 is reset and drives the drainage inner tube 1 to reset upward, thereby completing the reset of the drainage inner tube 1.

[0027] like Figure 2 , Figure 5 As shown, a plurality of air cylinders 12 are fixedly connected to the top side of the protection frame 2, a piston rod 13 is slidably connected inside the air cylinder 12, a through hole 14 is opened on the side of the air cylinder 12 close to the protection frame 2, the piston rod 13 is fixedly connected to the drainage inner tube 1, when the drainage inner tube 1 is reset, it will drive the piston rod 13, when the piston rod 13 moves, the gas in the air cylinder 12 can only be slowly discharged from the through hole 14, so as to avoid the drainage inner tube 1 from resetting too quickly, resulting in the water flow flowing in the drainage inner tube 1 hitting the inner wall of the drainage inner tube 1 and making noise when resetting, and when the drainage inner tube 1 is impacted by the water flow, it can also avoid the spring 1 7 and the spring 2 11 from being compressed too quickly, resulting in damage to the spring 1 7 and the spring 2 11.

[0028] like Figure 1-Figure 2 As shown, a number of sound-absorbing cottons 15 are fixedly connected to the inner wall of the protection frame 2. The sound-absorbing cottons 15 are conical. When noise is transmitted from the drainage inner pipe 1, it will first contact the conical surface of the sound-absorbing cotton 15, and then the noise will be reflected back to the surface of the drainage inner pipe 1, thereby reducing the noise transmission.

[0029] like Figure 1-Figure 3 As shown, the outer wall of the protection frame 2 is fixedly connected to a valve core 16, the valve core 16 penetrates the outer wall of the protection frame 2 to the inside, the valve core 16 is fixedly connected to an air pipe 17, the air pipe 17 is fixedly connected to the airbag 3, the valve core 16, the air pipe 17 and the airbag 3 are connected to each other, when the airbag 3 becomes deflated, gas can be pumped into the airbag 3 through the valve core 16, so that the airbag 3 remains in a fit with the pipe to prevent noise from being transmitted.

[0030] like Figure 1-Figure 4 As shown, a film 18 is fixedly connected to the airbag 3. The film 18 is made of ETFE material, has strong corrosion resistance and ductility, and can expand and contract with the airbag 3 to protect the airbag 3 from being corroded and damaged by sewage. It can also prevent the drainage inner pipe 1 from being corroded and causing the pipe wall to be thickened, making the drainage inner pipe 1 more likely to make noise.

[0031] like Figure 1-Figure 3As shown, the outer wall of the protection frame 2 is wrapped with sound insulation cotton 19. After a small amount of noise passes out of the protection frame 2, it will contact the sound insulation cotton 19 and be absorbed by the sound insulation cotton 19, thereby preventing the noise in the drainage inner pipe 1 from being transmitted out.

[0032] Working principle: when the water flow impacts the drainage inner tube 1, the positioning rod 6 will approach the bottom side of the sleeve 5 and compress the spring 1 7. At this time, the impact effect of the water flow on the drainage inner tube 1 will be weakened. At the same time, the fixing rod 8 will slide in the through groove 10 and drive the drainage inner tube 1 to move downward. At this time, the spring 2 11 is in a compressed state. When the water flow slows down, the spring 1 7 and the spring 2 11 are reset and drive the drainage inner tube 1 to reset upward in order to cope with the next impact. In this way, a large amount of noise can be removed from the inside of the drainage inner tube 1. When a small amount of noise is discharged from the drainage inner tube 1, the noise will first contact the conical surface of the sound-absorbing cotton 15, and a part of it will be reflected and removed. Another part of the noise will contact the sound-absorbing cotton 19 through the sound-absorbing cotton 15 and the protective frame 2, and then be absorbed by the sound-absorbing cotton 19.

[0033] In this way, the impact of water flow on the drainage inner pipe 1 can be reduced, the airbag 3 can be used to reduce the vibration conduction effect, the noise transmission can be reduced, and the sound-absorbing cotton 15 and the sound-insulating cotton 19 can be arranged to remove the remaining noise. A film 18 made of ETFE is also arranged to protect the pipeline. The film 18 is corrosion-resistant and can prevent the drainage inner pipe 1 from being corroded and causing the pipe wall to be thickened, making it easier for the drainage inner pipe 1 to transmit noise.

[0034] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A silencing drainage pipe, comprising a drainage inner pipe (1), characterized in that: A protective frame (2) is provided on the outside of the inner drainage tube (1); an air bag (3) is fixedly connected to the inner wall of the inner drainage tube (1); a plurality of fixing plates (4) are fixedly connected to the outer wall of the inner drainage tube (1); the fixing plates (4) are slidably connected to the inner wall of the protective frame (2); a plurality of buffer parts for reducing the pressure of water flow on the inner drainage tube (1) are provided on the inner bottom side of the protective frame (2); and a reset part for resetting the inner drainage tube (1) is provided on the inner wall of the protective frame (2).

2. The sound-absorbing drainage pipe according to claim 1, characterized in that: The buffer component comprises a plurality of sleeves (5) fixedly connected to the inner bottom side of the protection frame (2) and a positioning rod (6) slidably connected to the sleeve (5); the inner bottom side of the sleeve (5) and the bottom side of the positioning rod (6) are connected via a spring (7); and the positioning rod (6) is fixedly connected to the outer wall of the drainage inner pipe (1).

3. The sound-absorbing drainage pipe according to claim 1, characterized in that: The reset member comprises a fixed rod (8) fixedly connected to the lower side of the fixed plate (4) and a plurality of fixed blocks (9) fixedly connected to the inner wall of the protection frame (2); each of the plurality of fixed blocks (9) is provided with a through slot (10) for the fixed rod (8) to slide; the fixed rod (8) is located between the fixed plate (4) and the fixed block (9) and is sleeved with a second spring (11).

4. The sound-absorbing drainage pipe according to claim 3, characterized in that: A plurality of air cylinders (12) are fixedly connected to the top side of the protection frame (2), a piston rod (13) is slidably connected inside the air cylinder (12), a through hole (14) is provided on the side of the air cylinder (12) close to the protection frame (2), and the piston rod (13) is fixedly connected to the inner drainage pipe (1).

5. The sound-absorbing drainage pipe according to claim 4, characterized in that: A plurality of sound-absorbing cottons (15) are fixedly connected to the inner wall of the protection frame (2).

6. The sound-absorbing drainage pipe according to claim 1, characterized in that: The outer wall of the protection frame (2) is fixedly connected to a valve core (16), the valve core (16) penetrates the outer wall of the protection frame (2) to the inside, the valve core (16) is fixedly connected to an air supply pipe (17), the air supply pipe (17) is fixedly connected to the air bag (3), and the valve core (16), the air supply pipe (17) and the air bag (3) are in mutual conduction.

7. The sound-absorbing drainage pipe according to claim 6, characterized in that: A film (18) is fixedly connected to the airbag (3).

8. The sound-absorbing drainage pipe according to claim 1, characterized in that: The outer wall of the protection frame (2) is wrapped with sound insulation cotton (19).

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