Aircraft sewage discharge and flush connection device
By automatically connecting aircraft wastewater and flushing nozzles using a gravity-balanced lifting manhole and hydraulic clamping mechanism, the problem of low efficiency in traditional aircraft wastewater discharge is solved, achieving efficient, safe, and economical wastewater discharge and flushing operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAN RVNUO NEW ENERGY
- Filing Date
- 2025-09-04
- Publication Date
- 2026-08-04
AI Technical Summary
Traditional methods of discharging aircraft wastewater are inefficient, time-consuming, require multiple operators, and can easily cause tarmac pollution, affecting normal aircraft takeoff.
It adopts a gravity-balanced lifting well and a hydraulic clamping mechanism to automatically pull out and store flushing water pipes and sewage pipes, realizing automatic connection with aircraft sewage outlets and flushing water outlets, reducing manpower requirements and operation time.
It enables single-person operation, shortens operation time, reduces apron occupation, improves efficiency and safety, reduces labor costs, and avoids pollution caused by sewage transfer.
Smart Images
Figure CN224589361U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aircraft service support well technology, and in particular to an aircraft sewage discharge and flushing connection device. Background Technology
[0002] Aircraft ground services are the most basic and important work to ensure the normal operation and safety of aircraft flights. Among them, the discharge and flushing of aircraft sewage is a key point that is related to the passenger experience.
[0003] At most airports both domestically and internationally, aircraft wastewater is discharged using specialized vehicles. Ground staff operate these wastewater trucks across the tarmac to the designated location, remove the wastewater connector from the truck, manually pull out the wastewater hose and flushing hose, and then connect them to the aircraft's wastewater tank for wastewater discharge and flushing. After the operation is complete, the wastewater hose and flushing hose are manually retracted, and the wastewater truck is driven away.
[0004] Traditional methods of wastewater discharge using specialized vehicles have many drawbacks. Firstly, apron space is extremely limited, and with the increasing passenger traffic at airports, apron traffic is becoming increasingly complex. Using specialized vehicles typically requires two personnel, drastically increasing labor costs. Furthermore, the time required for vehicles to operate on the apron and for manually pulling out the wastewater hoses results in time-consuming and inefficient wastewater discharge operations. Multiple transfers and apron transport via wastewater trucks inevitably cause pollution to the surrounding area, affecting normal aircraft takeoffs. To address the shortcomings of traditional wastewater truck discharge methods in terms of operational efficiency, personnel requirements, and safety, a new aircraft wastewater discharge and flushing connection device is proposed. Utility Model Content
[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a safe, reliable, efficient, economical, convenient and quick aircraft sewage discharge and flushing connection device.
[0006] The technical solution adopted to solve the above-mentioned technical problems is as follows: including a gravity-balanced lifting manhole, a flushing water pipe, and a sewage pipe. One end of the flushing water pipe is equipped with a flushing water pipe connector, and one end of the sewage pipe is equipped with a sewage pipe connector. The gravity-balanced lifting manhole is connected to the flushing water pipe and the sewage pipe to drive the flushing water pipe and the sewage pipe to move up and down. The gravity-balanced lifting manhole is equipped with a sewage pipe hydraulic clamping mechanism. The sewage pipe hydraulic clamping mechanism clamps the sewage pipe and drives the sewage pipe to move in the manhole pit and approach the aircraft sewage outlet. The sewage pipe connector of the sewage pipe is connected to the aircraft sewage outlet and they are interconnected. The flushing water pipe connector of the flushing water pipe is connected to the aircraft flushing water outlet and they are interconnected.
[0007] Furthermore, a sewage pipe receiving device for receiving sewage pipes is provided inside the well pit.
[0008] Furthermore, a flushing water pipe storage device is provided inside the well pit for storing the flushing water pipe.
[0009] Furthermore, a movable folding ladder is installed on the gravity-balanced lifting well.
[0010] Furthermore, the sewage pipe is equipped with a sewage pipe valve.
[0011] Furthermore, the flushing water pipe is equipped with a flushing water pipe valve.
[0012] The beneficial effects of this utility model are as follows: (1) This utility model adopts a gravity balance lifting well to raise the flushing water pipe and sewage pipe from the apron. The sewage pipe is automatically pulled out from the well pit by the sewage pipe hydraulic clamping mechanism. The sewage pipe joint is connected to the aircraft sewage outlet and interconnected. At the same time, the flushing water pipe is manually pulled out from the well pit and the flushing water pipe joint is connected to the aircraft flushing water outlet and interconnected. The sewage discharge and flushing operation begins. After the sewage discharge and flushing are completed, the sewage pipe is sent back to the well pit by the hydraulic clamping mechanism and the flushing water pipe is manually put back. Then the gravity balance lifting well lowers the flushing water pipe and sewage pipe. Only one operator is needed to complete the operation. This can save the physical strength and working time of the staff, reduce the number of operators, shorten the operation time, reduce the number of apron support vehicles and the occupation of service pipelines on the apron, reduce apron pressure, improve operating efficiency and operating safety. It has the advantages of being safe, reliable, efficient, economical and convenient.
[0013] (2) This utility model uses a mechanically balanced counterweight lifting service well, and the mechanical lifting structure can ensure the stability and reliability of the lifting platform. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of one embodiment of the aircraft sewage discharge and flushing connection device of this utility model.
[0015] Reference numerals: 1. Gravity-balanced lifting manhole; 2. Movable folding ladder; 3. Flushing water pipe; 4. Sewage pipe; 5. Sewage pipe hydraulic clamping mechanism; 6. Sewage pipe valve; 7. Sewage pipe storage device; 8. Flushing water pipe storage device; 9. Flushing water pipe valve. Detailed Implementation
[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0017] like Figure 1As shown, the aircraft sewage discharge and flushing connection device in this embodiment is composed of a gravity-balanced lifting manhole 1, a movable folding ladder 2, a flushing water pipe 3, a sewage pipe 4, a sewage pipe hydraulic clamping mechanism 5, a sewage pipe valve 6, a sewage pipe storage device 7, a flushing water pipe storage device 8, and a flushing water pipe valve 9.
[0018] One end of the flushing water pipe 3 is equipped with a flushing water pipe connector, which is a Ningbo Nanli Industrial Flow Control Airport Ground Support Product Model A0031016, made of stainless steel with a silicone sealing ring. A flushing water pipe valve 9 is installed on the flushing water pipe 3. One end of the sewage pipe 4 is equipped with a sewage pipe connector, which is a Ningbo Nanli Industrial Flow Control Airport Ground Support Product Model A001, with a cast aluminum alloy shell, a rotary lock structure, and nitrile rubber seals. A sewage pipe valve 6 is installed on the sewage pipe 4. A gravity-balanced lifting manhole 1 connects to the flushing water pipe 3 and the sewage pipe 4 to drive their lifting movement. The gravity-balanced lifting manhole 1 uses existing technology, specifically referring to a mechanically balanced counterweight aircraft service support lifting platform with invention patent publication number CN106144946A. A sewage pipe storage device 7 is installed inside the manhole pit to store the sewage pipe 4. A flushing water pipe storage device 8 is installed inside the well pit to store the flushing water pipe 3.
[0019] A movable folding ladder 2 is installed on the gravity-balanced lifting manhole 1. Due to the high height of the large aircraft's sewage outlet, the movable folding ladder is required for assistance. The movable folding ladder 2 is made of aluminum alloy and has a working height of 3.5 meters. A sewage pipe hydraulic clamping mechanism 5 is installed on the gravity-balanced lifting manhole 1. The sewage pipe hydraulic clamping mechanism 5 clamps the sewage pipe 4 and drives the sewage pipe 4 to move in the manhole pit and approach the aircraft's sewage outlet. The sewage pipe hydraulic clamping mechanism 5 adopts existing technology, specifically referring to a hydraulically driven cable winding and unwinding device according to utility model patent application number CN202422869655.4. The sewage pipe connector of the sewage pipe 4 is connected to and interconnected with the aircraft's sewage outlet, and the flushing water pipe connector of the flushing water pipe 3 is connected to and interconnected with the aircraft's flushing water outlet.
[0020] The working principle of this embodiment is as follows: The flushing water pipe 3 and sewage pipe 4 are raised from the apron by the gravity-balanced lifting manhole 1. The sewage pipe 4 is automatically pulled out of the manhole pit by the sewage pipe hydraulic clamping mechanism 5. The sewage pipe joint of the sewage pipe 4 is connected to the aircraft sewage outlet and interconnected. At the same time, the flushing water pipe 3 is manually pulled out of the manhole pit and the flushing water pipe joint of the flushing water pipe 3 is connected to the aircraft flushing water outlet and interconnected, and the sewage discharge and flushing operation begins. After the sewage discharge and flushing are completed, the sewage pipe 4 is sent back into the manhole pit by the sewage pipe hydraulic clamping mechanism 5 and the flushing water pipe 3 is manually put back. Then the gravity-balanced lifting manhole 1 lowers the flushing water pipe 3 and sewage pipe 4.
[0021] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.
Claims
1. An aircraft sewage discharge and rinse connection apparatus, characterized by: It includes a gravity-balanced lifting manhole (1), a flushing water pipe (3), and a sewage pipe (4). One end of the flushing water pipe (3) is equipped with a flushing water pipe connector, and one end of the sewage pipe (4) is equipped with a sewage pipe connector. The gravity-balanced lifting manhole (1) is connected to the flushing water pipe (3) and the sewage pipe (4) to drive the flushing water pipe (3) and the sewage pipe (4) to move up and down. The gravity-balanced lifting manhole (1) is equipped with a sewage pipe hydraulic clamping mechanism (5). The sewage pipe hydraulic clamping mechanism (5) clamps the sewage pipe (4) and drives the sewage pipe (4) to move in the manhole pit and approach the aircraft sewage outlet. The sewage pipe connector of the sewage pipe (4) is connected to the aircraft sewage outlet and they are interconnected. The flushing water pipe connector of the flushing water pipe (3) is connected to the aircraft flushing water outlet and they are interconnected.
2. An aircraft waste drain and flush connection arrangement according to claim 1, characterised in that: The well pit is equipped with a sewage pipe storage device (7) for storing sewage pipe (4).
3. The aircraft sewage discharge and flush connection apparatus of claim 1, wherein: The well pit is equipped with a flushing water pipe storage device (8) for storing the flushing water pipe (3).
4. The aircraft sewage discharge and flush connection apparatus of claim 1, wherein: The gravity-balanced lifting well (1) is equipped with a movable folding ladder (2).
5. The aircraft sewage discharge and flush connection apparatus of claim 1, wherein: The sewage pipe (4) is equipped with a sewage pipe valve (6).
6. The aircraft sewage discharge and flush connection apparatus of claim 1, wherein: The flushing water pipe (3) is equipped with a flushing water pipe valve (9).