Air inlet device with noise reduction function

Abstract

The utility model relates to the technical field of pneumatic garbage collection, and discloses an air inlet device with a silencing function, which comprises an outer shell, a silencing component is arranged on the inner wall of the outer shell, the silencing component comprises inner-layer sound-absorbing cotton on the innermost layer, middle sound-insulating cotton is arranged on one side of the inner-layer sound-absorbing cotton, and the middle sound-insulating cotton is arranged on the other side of the inner-layer sound-absorbing cotton. The other side of the middle sound insulation cotton is provided with outer sound insulation cotton, and the other side of the outer sound insulation cotton is provided with outer sound insulation felt. The noise pollution caused by high-speed air flow is reduced by arranging a plurality of groups of sound absorption and insulation materials overlapped with uniform meshes, the stability of high-speed inlet air flow is ensured by arranging a multi-layer annular air inlet assembly, the air inlet process is quickly and safely carried out by adopting air cylinder thrust, and the problem of insufficient or unstable air quantity at the air inlet front end in a traditional pipeline collection system is solved. And vibration caused by a single air inlet direction is relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic garbage collection, in particular to an air intake device with a silencer function. Background Art

[0002] The current method of garbage recycling is that residents deliver garbage at disposal points, and after simple processing by sanitation workers, sanitation vehicles transport the garbage to landfills or incineration plants for centralized treatment. The entire collection and transportation process takes a long time and is prone to secondary pollution.

[0003] In the pipeline garbage collection method on the market, high-speed airflow is provided by high-power fans for rapid collection, which saves time. However, the air intake method at the front end of the pipeline adopts conventional screens, or independent air intake rooms and shutters. On the one hand, it cannot guarantee the air volume requirements, causing large fluctuations in the operating frequency of the system fan. In addition, there is a lack of noise reduction measures, which cannot reduce the impact of noise pollution. At the same time, conventional air intake shutters cannot be used with some buried pipeline systems.

[0004] In view of this, we propose an air intake device with a silencer function. Utility Model Content

[0005] The purpose of this utility model is to provide an air intake device with a silencer function, which improves the air intake stability of the system by evenly designing the annular air inlet, sets sound-absorbing and sound-insulating materials to reduce the noise pollution of high-speed airflow, and uses a cylinder to control the air intake valve plate to improve the speed and safety of the execution action, thereby improving the efficiency and stability of the pneumatic pipeline collection system as a whole.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] An air intake device with a silencer function comprises an outer shell, an inner wall of the outer shell being provided with a silencer assembly, the silencer assembly comprising an innermost layer of inner sound-absorbing cotton, a middle sound-insulating cotton being provided on one side of the inner sound-absorbing cotton, an outer layer of sound-insulating cotton being provided on the other side of the middle sound-insulating cotton, and an outer layer of sound-insulating felt being provided on the other side of the outer layer of sound-insulating cotton.

[0008] Preferably, an annular lining mesh plate is provided inside the outer shell, a cylinder fixed connecting plate is welded to the side bottom of the annular lining mesh plate, a cylinder assembly is fixedly connected to the cylinder fixed connecting plate, the output end of the cylinder assembly is connected to a cylinder push rod, the cylinder push rod is connected to an intake valve plate, and a valve plate sealing ring is provided on the intake valve plate.

[0009] Preferably, an air inlet assembly is provided at the upper end of the outer shell, a top cover is provided on the top of the air inlet assembly, and a plurality of nylon plugs are provided on the top cover.

[0010] Preferably, a top cover lining mesh plate is provided at the upper end of the air inlet assembly, and four air inlet assembly positioning shafts are evenly provided on the air inlet assembly.

[0011] Preferably, an inspection door panel is provided on the front of the outer shell, a pipe fixing connection seat is fixedly connected to the bottom end of the outer shell, a flange connector is provided below the pipe fixing connection seat, and an air pipe connector and an electric wire connector are provided at the bottom of the outer shell.

[0012] By means of the above technical solution, the present invention provides an air intake device with a silencing function, which has at least the following beneficial effects:

[0013] (1) The utility model ensures a stable high-speed air flow by setting up a multi-layer annular air inlet component design, adopts cylinder thrust, and performs the air intake process quickly and safely, thereby solving the problem of insufficient or unstable air volume at the front end of the air intake in the traditional pipeline collection system and reducing the vibration caused by a single air intake direction.

[0014] (2) The present invention reduces noise pollution caused by high-speed air flow by arranging uniform meshes and overlapping multiple groups of sound-absorbing and sound-insulating materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0016] Figure 1 It is an overall schematic diagram of the utility model;

[0017] Figure 2 This is a cross-sectional view of the overall structure of the utility model;

[0018] Figure 3 This is the overall front view of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the air inlet assembly in the utility model.

[0020] In the figure: 10. Outer shell; 11. Air inlet assembly; 12. Top cover; 13. Inspection door panel; 14. Pipe fixing connector; 15. Flange connector; 16. Air pipe connector; 17. Wire connector; 18. Nylon plug; 20. Mesh lining plate; 21. Cylinder assembly; 22. Cylinder push rod; 23. Cylinder fixing connector plate; 24. Inlet valve plate; 25. Valve plate sealing ring; 30. Inner layer sound-absorbing cotton; 31. Middle sound insulation cotton; 32. Outer layer sound insulation cotton; 33. Outer layer sound insulation felt; 34. Air outlet assembly positioning shaft; 35. Mesh lining plate of top cover. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-Figure 4 As shown, the inner wall of the outer shell 10 is provided with a sound-absorbing component, which includes an innermost layer of inner sound-absorbing cotton 30, a middle sound-insulating cotton 31 is provided on one side of the inner sound-absorbing cotton 30, an outer layer of sound-insulating cotton 32 is provided on the other side of the middle sound-insulating cotton 31, and an outer layer of sound-insulating felt 33 is provided on the other side of the outer layer of sound-insulating cotton 32. The mesh plate 35 is lined on the top cover to disperse the noise, and the first layer of sound-absorbing material is overlapped to absorb high noise to the maximum extent, and then passes through the second and third layers of sound-insulating media to achieve noise reduction measures and reduce the noise impact of the system's air intake link.

[0023] An annular lining mesh plate 20 is provided inside the outer shell 10, and a cylinder fixed connecting plate 23 is welded to the side bottom of the annular lining mesh plate 20. A cylinder assembly 21 is fixedly connected to the cylinder fixed connecting plate 23. The output end of the cylinder assembly 21 is connected to a cylinder push rod 22, and the cylinder push rod 22 is connected to an air intake valve plate 24. A valve plate sealing ring 25 is provided on the air intake valve plate 24. The air intake valve plate 24 and the pipeline fixed connecting seat 14 are fitted with a sealing ring to prevent some garbage odor that may remain in the pipeline from spreading to the device to the outdoors.

[0024] An air inlet assembly 11 is provided at the upper end of the outer shell 10. The air inlet assembly 11 is composed of multiple hollow circular basins in the middle, which are stacked and welded at equal intervals. The air enters in a circular manner from the slightly inclined gap between the two components, making full use of the positional relationship of the structural components to ensure the air intake volume under the same annular surface area, and achieve uniform and stable air intake direction. The annular air intake method indirectly forms a certain airflow buffering effect, which solves the airflow impact vibration caused by one-way high-speed air intake. A top cover 12 is provided on the top of the air inlet assembly 11, and a number of nylon plugs 18 are provided on the top cover 12.

[0025] The upper end of the air inlet assembly 11 is provided with a top cover lining mesh plate 35 to reasonably distribute the intake noise to the evenly arranged meshes. Four air inlet assembly positioning shafts 34 are evenly provided on the air inlet assembly 11.

[0026] An inspection door panel 13 is provided on the front of the outer shell 10, and a pipe fixing connection seat 14 is fixedly connected to the bottom end of the outer shell 10. A flange connector 15 is provided below the pipe fixing connection seat 14. An air pipe joint 16 and an electric wire joint 17 are provided at the bottom of the outer shell 10. The mesh plate 35 lining the top cover and the bottom area of ​​the inner cavity of the outer shell 10 are provided with a group of interfaces for providing air paths for the cylinders and two groups of control line interfaces.

[0027] When an air intake device with a silencer function according to the present invention is in use, in the initial state, the air intake valve plate 24 is in a closed state and the cylinder push rod 22 is in a lower position. The central station room performs real-time detection of the device through a control line, including detecting the communication status of the control system and collecting the air pressure value in the device. When a fault occurs, the central control system prompts that manual inspection is required. The user enters the internal inspection through the inspection door panel of the device and the device can be used only after the fault is eliminated. When the central station room receives an instruction to start the fan and needs to collect and transport the garbage in the storage section at the bottom of a vertical pipe, compressed air is provided to the air intake device at the front end of the pipe section, and the air intake valve plate 24 at the bottom of the air intake device is quickly opened by pneumatic force. Subsequently, the fan is started to form a high-speed airflow directed to the central machine room, and the discharge valve under the storage section at the bottom of the pipe section is opened. Due to the suction power of the air flow, the garbage in the storage section is quickly and sealed and sucked into the central container. After the set time, the control system turns off the fan, closes the discharge valve of the storage section, and finally closes the valve plate of the air intake device and returns to the standby state.

[0028] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air intake device with a silencing function, comprising an outer shell (10), characterized in that: The inner wall of the outer shell (10) is provided with a sound-absorbing component, and the sound-absorbing component includes an innermost layer of inner sound-absorbing cotton (30), a middle sound-insulating cotton (31) is provided on one side of the inner sound-absorbing cotton (30), an outer sound-insulating cotton (32) is provided on the other side of the middle sound-insulating cotton (31), and an outer sound-insulating felt (33) is provided on the other side of the outer sound-insulating cotton (32).

2. The air intake device with a silencing function according to claim 1, characterized in that: An annular mesh lining plate (20) is arranged inside the outer shell (10), a cylinder fixing connecting plate (23) is welded to the side bottom of the annular mesh lining plate (20), a cylinder assembly (21) is fixedly connected to the cylinder fixing connecting plate (23), an output end of the cylinder assembly (21) is connected to a cylinder push rod (22), the cylinder push rod (22) is connected to an intake valve plate (24), and a valve plate sealing ring (25) is arranged on the intake valve plate (24).

3. The air intake device with a silencing function according to claim 1, characterized in that: An air inlet assembly (11) is arranged at the upper end of the outer shell (10), a top cover (12) is arranged at the top of the air inlet assembly (11), and a plurality of nylon plugs (18) are arranged on the top cover (12).

4. The air intake device with a silencing function according to claim 3, characterized in that: A top cover lining mesh plate (35) is provided at the upper end of the air inlet assembly (11), and four air inlet assembly positioning shafts (34) are evenly arranged on the air inlet assembly (11).

5. The air intake device with a silencing function according to claim 1, characterized in that: The front of the outer shell (10) is provided with an inspection door panel (13), the bottom end of the outer shell (10) is fixedly connected with a pipe fixing connection seat (14), a flange connector (15) is provided below the pipe fixing connection seat (14), and the bottom of the outer shell (10) is provided with an air pipe joint (16) and an electric wire joint (17).

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