Aircraft paint shop hangar air supply fibrous duct dusting and blowing device
By designing a hanger and a mobile blowing module on the fiber duct of the aircraft paint hangar, and using a monorail trolley and nozzles to achieve automated blowing, the dangers and low efficiency of high-altitude cleaning are solved, and a highly efficient and safe cleaning effect is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU AIRCRAFT MAINTENANCE ENG
- Filing Date
- 2025-06-19
- Publication Date
- 2026-07-10
Smart Images

Figure CN224475420U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of industrial ventilation duct cleaning equipment, specifically relating to a dust blowing device for fiber ducts in aircraft paint spraying hangars. Background Technology
[0002] Aircraft paint hangars primarily provide painting services for aircraft, ensuring the maintenance and repair of their exteriors. Air conditioning fiber ducts are installed in the ceiling of the aircraft paint hangar to supply air to the interior.
[0003] Paint mist and dust are easily generated during the painting process in aircraft paint hangars. The paint mist and dust will spread to the surrounding area and a lot of them will settle on the air supply fiber ducts. Therefore, in order to ensure that the environment inside the aircraft paint hangar meets the standards, it is often necessary to clean the paint mist and dust deposited on the air supply fiber ducts after the work is completed.
[0004] Because the fiber optic air ducts are located at a high altitude, the current cleaning method involves manual climbing to the top of the aircraft paint hangar and then using hand tools to clean the top of the ducts. This cleaning process is not only highly dangerous but also extremely time-consuming and labor-intensive; a single cleaning session in an existing aircraft paint hangar typically takes more than 6 hours. Therefore, there is an urgent need for a device capable of blowing away accumulated dust from the fiber optic air ducts in aircraft paint hangars to ensure personnel safety and save time and manpower. Utility Model Content
[0005] The purpose of this invention is to provide a dust-blowing device for the air supply fiber duct of an aircraft painting hangar, which has high cleaning efficiency for the air supply fiber duct and saves manpower.
[0006] The objective of this utility model is achieved through the following technical solution:
[0007] A dust removal device for air supply fiber ducts in an aircraft painting hangar is characterized by comprising a hanger, a track, and a mobile cleaning module. The hanger is arranged along the distribution path of the air supply fiber ducts, and support frames are spaced apart on the hanger. The air supply fiber ducts pass through the support frames and are supported by the bottom of the support frames. The track is arranged directly above the air supply fiber ducts and is fixedly connected to the top of the support frames. The support frames divide the track into multiple segments, and a mobile cleaning module is provided on each segment. The mobile cleaning module includes a monorail trolley, a spring-loaded spiral air pipe, and a nozzle. The monorail trolley is mounted on the track, and the nozzle is located on the monorail trolley. The nozzle is used to spray compressed air onto the top of the air supply fiber ducts. One end of the spring-loaded spiral air pipe is connected to the nozzle, and the other end is used to connect to an external gas pipeline.
[0008] A further technical solution of this utility model is as follows: the hanger includes two parallel side support beams and hanger rods arranged at intervals along the side support beams. The lower end of the hanger rod is fixedly connected to the side support beams, and the upper end is used to be fixedly connected to the top of the aircraft painting hangar. The bottom two ends of the support frame are respectively fixedly connected to the two side support beams.
[0009] A further technical solution of this utility model is as follows: the support frame includes a bottom horizontal bar, two vertical bars and a top horizontal bar. The two ends of the bottom horizontal bar are fixedly connected to the inner sides of the two side support beams respectively. The two vertical bars are fixed on the top of the two side support beams respectively. The two ends of the top horizontal bar are fixedly connected to the upper ends of the two vertical bars respectively. The bottom horizontal bar is used to support the air supply fiber duct. The track is fixed in the middle of the top horizontal bar.
[0010] A further technical solution of this utility model is: a nozzle mounting bracket is fixedly provided under the monorail trolley, and the nozzle is fixedly installed on the nozzle mounting bracket.
[0011] A further technical solution of this utility model is: the nozzle is a rotating nozzle.
[0012] A further technical solution of this utility model is: each monorail trolley is equipped with a stepper motor, which drives the monorail trolley to move on the track.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] This invention uses a support frame on a hanger to simultaneously support the fiber optic duct and the mounting track. A mobile purging module is arranged on the track, and the single-rail trolley of the mobile purging module drives the movement of the nozzles to achieve segmented purging of the fiber optic duct. This invention eliminates the need for manual labor, better ensures personnel safety, and is more efficient, saving manpower and time. Attached Figure Description
[0015] Figure 1 This is a partial front view schematic diagram of the dust removal device for the fiber optic air duct of the aircraft paint spraying hangar according to an embodiment of the present utility model.
[0016] Figure 2 This is one of the partial structural diagrams of the dust removal device for the aircraft paint hangar air supply fiber duct when the mobile cleaning module is hidden, according to an embodiment of this utility model.
[0017] Figure 3 This is the second partial structural schematic diagram of the dust-collecting device for the aircraft paint hangar air supply fiber duct when the movable blowing module is hidden, according to an embodiment of this utility model.
[0018] Meaning of the labels in the attached diagram:
[0019] 100-Hanger; 101-Side support beam; 102-Hanging rod; 200-Support frame; 201-Vertical rod; 202-Top horizontal bar; 203-Bottom horizontal bar; 300-Railway; 400-Spring spiral air pipe; 500-Nozzle; 600-Monorail trolley; 601-Car frame; 602-Stepper motor; 603-Railway wheel; 700-Nozzle mounting bracket; 800-Fiber duct for air supply; 900-Top support for aircraft paint hangar. Detailed Implementation
[0020] The present invention will be further described below with reference to embodiments.
[0021] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0022] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0023] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0024] Example:
[0025] like Figures 1 to 3 The image shows a dust removal device for the fiber optic air duct of an aircraft paint spraying hangar in this embodiment, which includes a hanger 100, a track 300, and multiple movable cleaning modules.
[0026] The hanger 100 is arranged along the distribution path of the air supply fiber duct 800. In this embodiment, the hanger 100 includes two parallel side support beams 101 and multiple hanger rods 102 arranged at intervals along the side support beams 101. The lower end of the hanger rod 102 is fixedly connected to the side support beams 101 by bolts, and the upper end of the hanger rod 102 is used to be fixedly connected to the top support 900 of the aircraft paint hangar by bolts, so that the hanger 100 can be fixedly installed on the top of the aircraft paint hangar.
[0027] Multiple support frames 200 are spaced apart on the hanger 100. In this embodiment, the support frame 200 includes a bottom horizontal bar 203, two vertical bars 201, and a top horizontal bar 202. The two ends of the bottom horizontal bar 203 are fixedly connected to the inner sides of the two side support beams 101 by bolts. The two vertical bars 201 are fixed to the top of the two side support beams 101 by bolts. The two ends of the top horizontal bar 202 are fixedly connected to the upper ends of the two vertical bars 201 by bolts. The bottom horizontal bar 203, the two vertical bars 201, and the top horizontal bar 202 form a rectangular metal frame. In use, the air supply fiber duct 800 passes through the support frame 200, and the bottom horizontal bar 203 supports the air supply fiber duct 800.
[0028] In this embodiment, the side support beam 101, the hanger 102, the bottom crossbar 203, the two vertical bars 201 and the top crossbar 202 are all made of aluminum profiles with a cross-sectional dimension of 40×25mm.
[0029] The track 300 is arranged directly above the air supply fiber duct 800, and the track 300 is fixedly connected to the middle of the top crossbar 202 of the support frame 200 by bolts. The support frame 200 divides the track 300 into multiple segments, and each segment of the track 300 is equipped with a movable purging module.
[0030] like Figure 1 As shown, the mobile purging module of this embodiment includes a monorail trolley 600, a spring-loaded spiral air pipe 400, and a nozzle 500. The monorail trolley 600 is mounted on a track 300 and can move on the track 300. The monorail trolley 600 adopts a conventional trolley, which mainly includes a frame 601, track wheels 603 mounted on the frame 601, a stepper motor 602, etc. The track wheels 603 are supported on the track 300, and the stepper motor 602 can drive the track wheels 303 to rotate, thereby driving the monorail trolley 600 to move on the track 300. (Since the monorail trolley 600 is conventional, it will not be described in detail here.)
[0031] In this embodiment, a nozzle mounting bracket 700 is provided under the frame 601 of the monorail trolley 600. The nozzle mounting bracket 700 is C-shaped, and its upper end is fixedly connected to the lower end of the frame 601. The nozzle 500 is installed at the lower end of the nozzle mounting bracket 700 in a conventional manner. The nozzle 500 is used to spray compressed air onto the surface of the air supply fiber duct 800, thereby blowing away the paint mist and dust deposited on the surface of the air supply fiber duct 800. The preferred distance between the nozzle 500 and the air supply fiber duct 800 is 80-100mm.
[0032] The nozzle 500 in this embodiment is a conventional rotary nozzle that is driven to rotate by airflow, thereby enabling it to clean a larger area. The nozzle 500 can be fan-shaped, further expanding the cleaning range.
[0033] The spring-loaded spiral air hose 400 is an existing telescopic air hose, its main body extending spirally in a spring shape, allowing it to stretch within a certain range. One end of the spring-loaded spiral air hose 400 is connected to the nozzle 500, and the other end is used to connect to an external gas pipeline, through which compressed gas is supplied. The external gas pipeline can be arranged along the hanger 100 and the support frame 200, and of course, the gas pipeline will be connected to a compressor, through which the gas source is supplied.
[0034] The process of cleaning the fiber optic air ducts of the aircraft paint spraying hangar using the dust-blowing device in this embodiment is as follows:
[0035] 1. First, ensure that the compressor is working properly. The normal air supply pressure of the compressor is 0.5-0.8MPa.
[0036] 2. Then start the air supply system of the aircraft paint hangar, causing the air supply fiber duct 800 to inflate.
[0037] 3. Open the manual gate valve on the gas pipeline. The compressed gas generated by the compressor will be delivered to the nozzle 500 and sprayed onto the air supply fiber duct 800. Start the monorail trolley 600. The monorail trolley 600 drives the nozzle 500 to move back and forth, thereby realizing the segmented purging of the air supply fiber duct 800.
[0038] 4. After the purging set time (e.g., 20 minutes), stop the monorail trolley 600, close the manual gate valve and compressor on the gas pipeline, and shut down the air supply system of the aircraft paint hangar.
[0039] The dust removal device in this embodiment can achieve a dust removal rate of ≥90% on the top of the air supply fiber duct, with a single cleaning cycle of ≤45 minutes. Compared to manual dust blowing, compressed air loss is reduced by 27%.
[0040] The above embodiments of this utility model are not intended to limit the scope of protection of this utility model. The implementation of this utility model is not limited thereto. All other modifications, substitutions or alterations made to the above structure of this utility model based on the above content of this utility model and in accordance with the common technical knowledge and conventional means in the field, without departing from the basic technical idea of this utility model, shall fall within the scope of protection of this utility model.
Claims
1. A dust-blowing device for the air supply fiber duct of an aircraft painting hangar, characterized in that: The system includes a hanger, a track, and a mobile purging module. The hanger is arranged along the distribution path of the fiber optic duct. Support frames are spaced apart on the hanger, through which the fiber optic duct passes. The bottom of the support frames supports the fiber optic duct. The track is arranged directly above the fiber optic duct and is fixedly connected to the top of the support frames. The support frames divide the track into multiple segments, and each segment is equipped with a mobile purging module. The mobile purging module includes a monorail trolley, a spring-loaded spiral air pipe, and a nozzle. The monorail trolley is mounted on the track, and the nozzle is located on the monorail trolley. The nozzle is used to spray compressed air onto the top of the fiber optic duct. One end of the spring-loaded spiral air pipe is connected to the nozzle, and the other end is connected to an external gas pipeline.
2. The dust-collecting blowing device for the fiber optic air duct of an aircraft painting hangar according to claim 1, characterized in that: The gantry includes two parallel side support beams and suspension rods spaced apart along the side support beams. The lower end of the suspension rod is fixedly connected to the side support beams, and the upper end is used to be fixedly connected to the top of the aircraft painting hangar. The bottom two ends of the support frame are respectively fixedly connected to the two side support beams.
3. The dust-collecting blowing device for the air supply fiber duct of an aircraft painting hangar according to claim 2, characterized in that: The support frame includes a bottom horizontal bar, two vertical bars and a top horizontal bar. The two ends of the bottom horizontal bar are fixedly connected to the inner sides of the two side support beams, and the two vertical bars are fixed on the top of the two side support beams. The two ends of the top horizontal bar are fixedly connected to the upper ends of the two vertical bars, and the bottom horizontal bar is used to support the air supply fiber duct. The track is fixed in the middle of the top horizontal bar.
4. The dust-collecting blowing device for the fiber optic air duct of an aircraft painting hangar according to claim 1, characterized in that: A nozzle mounting bracket is fixedly installed under the monorail trolley, and the nozzle is fixedly installed on the nozzle mounting bracket.
5. The dust-collecting blowing device for the air supply fiber duct of an aircraft painting hangar according to claim 1, characterized in that: The nozzle is a rotary nozzle.
6. The dust-collecting blowing device for the fiber optic air duct of an aircraft painting hangar according to claim 1, characterized in that: Each of the monorail trolleys is equipped with a stepper motor, which drives the monorail trolley to move on the track.