Aircraft sewage outlet sewage pipe docking auxiliary device
By designing an auxiliary device for connecting aircraft sewage outlets to sewage pipes, the problem of loose connections between sewage outlets and sewage pipes was solved, achieving stable connections and reducing the risk of leakage, thereby improving airport safety and operational efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU XIAOSHAN INT AIRPORT
- Filing Date
- 2025-07-15
- Publication Date
- 2026-06-19
AI Technical Summary
During aircraft sewage disposal operations, connecting the sewage outlet to the sewage pipe is difficult, and loose connections can easily detach, leading to sewage leakage, causing apron pollution and safety hazards.
An auxiliary device for docking a sewage pipe at an aircraft discharge outlet was designed, including a connecting ring and a handheld component. The device is fixed to the sewage pipe by clamps and limiting units, providing additional gripping points to ensure connection stability and providing support when sewage flows.
It improves the convenience and stability of the connection between the sewage outlet and the sewage pipe, reduces the risk of sewage leakage, and ensures the safe operation and operational efficiency of the airport.
Smart Images

Figure CN224373892U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of docking devices, specifically to an auxiliary device for docking sewage pipes at aircraft sewage outlets. Background Technology
[0002] During airport aircraft sewage disposal operations, the sewage outlets on aircraft are usually located on the underside of the aircraft. Workers need to bend over and lift the sewage pipe connector to connect it to the outlet. Since the connector is mostly cylindrical and has limited volume, it is more difficult to quickly connect the connector to the outlet, which affects the effectiveness of the connection operation to some extent. Sometimes the sewage pipe is not tightly connected to the outlet. When the sewage from the outlet enters the sewage pipe, the instantaneous flow is large, which can cause a large impact on the sewage pipe. Since the sewage pipe is a flexible hose with no leverage point, the sewage pipe may fall off the outlet, resulting in sewage leakage and pollution of the apron. This not only requires washing the apron but also easily creates a risk of FOD (Follicular Units) on the apron, posing a safety hazard to the safe operation of the airport. Utility Model Content
[0003] The purpose of this invention is to provide an auxiliary device for connecting sewage pipes at aircraft sewage outlets. This auxiliary device can improve the convenience of the connection operation, ensure the connection quality of sewage pipes at the sewage outlets, and reduce the risk of sewage pollution to the apron caused by sewage pipes falling off during use.
[0004] The technical solution adopted by this utility model to solve the above problems is:
[0005] An auxiliary device for connecting a sewage pipe to an aircraft sewage outlet includes:
[0006] A connecting ring, which is used to fit and fix to the connector of the sewage pipe, has a sheet-like structure and at least two clamps on its outer side.
[0007] The handheld component is a hollow structure with openings at both ends. The connecting end of the handheld component is fixed to the inner side of the connecting ring, and the diameter of its gripping end is larger than the diameter of the connecting end.
[0008] When the connecting ring is installed on the docking head, the flexible hose of the sewage pipe is threaded through the handheld part.
[0009] As a further improvement to the above technical solution, the outer side of the connecting ring is provided with a limiting unit corresponding to the clamp. The limiting unit includes two limiting strips, which are integrally connected to the connecting ring. The two limiting strips are arranged symmetrically to the clamp and form a limiting groove between them. The clamp's retaining ring is located in the limiting groove. A limiting opening for accommodating the clamp's locking element is formed between the two ends of the limiting strips. The limiting openings on each limiting unit are on the same straight line.
[0010] As a further improvement to the above technical solution, the handheld component is a frame structure, including a gripping rod and several connecting rods. The gripping rod is in the shape of a ring, and the connecting rods are arranged at equal angles around the central axis of the gripping rod. The gripping rod is connected to the inner side of the connecting ring through the connecting rods, and the two ends of the connecting rods are fixed to the connecting ring and the gripping rod respectively.
[0011] As a further improvement to the above technical solution, the connecting rod includes a main body with a circular cross-section and an integrally connected connecting part on its inner end. The connecting part is fixed to the inner side of the connecting ring and has an elliptical cross-section. The outer end of the main body is bent outward to form a folded part, which is fixed to the gripping rod.
[0012] As a further improvement to the above technical solution, the main bodies are arranged together to form a receiving space for the hose to pass through. A support ring is provided in the receiving space. The main bodies are arranged at equal angles around the central axis of the support ring. The main bodies are fixed on the support ring and the two are perpendicular to each other.
[0013] As a further improvement to the above technical solution, a convex strip unit is provided between two adjacent connecting parts. The convex strip unit includes several rubber strips, and each rubber strip is arranged at equal intervals along the axial direction of the connecting ring on the inner side of the connecting ring.
[0014] Compared with the prior art, this utility model has the following advantages and effects:
[0015] This invention, through the structural design between the connecting ring and the handheld component, enables the device to be installed on the sewage pipe. This allows the operator to hold the handheld component to control the connection of the connector to the sewage outlet. The increased distance between the holding position on the sewage pipe and the sewage outlet improves the convenience of the docking operation and reduces the impact of the sewage outlet's location on the connection process, ensuring the connection quality of the sewage pipe at the outlet. Furthermore, as sewage enters and is transported through the sewage pipe, the operator can use the handheld component to provide support for the device, ensuring the stability of the sewage pipe connection at the outlet. This reduces the risk of sewage contamination of the apron due to the sewage pipe detaching during use, and improves the safety margin during sewage discharge operations while ensuring efficiency. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of an auxiliary device for connecting sewage pipes to aircraft sewage outlets according to this utility model.
[0017] Figure 2 This is a structural schematic diagram of the auxiliary device for connecting sewage pipes to aircraft drain outlets according to this utility model, in use.
[0018] Figure 3This is a partial structural schematic diagram of an auxiliary device for connecting sewage pipes to aircraft sewage outlets according to this utility model.
[0019] Figure 4 yes Figure 3 A partial structural diagram of the inner side of the connecting ring is shown.
[0020] Figure 5 yes Figure 3 A partial structural diagram of the outer surface of the connecting ring is shown.
[0021] Among them, there are: connecting ring 1, hand-held part 2, connecting end 21, gripping end 22, clamp 3, retaining ring 31, locking part 32, gripping rod 4, connecting rod 5, main body 51, connecting part 52, folding part 53, accommodating space 6, support ring 61, protruding strip unit 7, rubber strip 71, limiting unit 8, limiting strip 81, limiting groove 82, limiting port 83, connector 91, and hose 92. Detailed Implementation
[0022] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.
[0023] See Figures 1-5 This embodiment provides an auxiliary device for docking a sewage pipe at an aircraft discharge outlet, comprising a connecting ring 1 for fitting and fixing onto the docking head of the sewage pipe and a handheld component 2. The connecting ring 1 is a sheet-like structure with two clamps 3 on its outer surface. The handheld component 2 is a hollow structure with openings at both ends. The connecting end 21 of the handheld component 2 is fixed to the inner surface of the connecting ring 1, and the diameter of its holding end 22 is larger than the diameter of the connecting end 21. When the connecting ring 1 is installed on the docking head, the flexible hose of the sewage pipe passes through the handheld component 2.
[0024] In use, the device is fitted onto the sewage pipe, with the butt joint of the sewage pipe threaded onto the connecting ring 1. The handle 2 is fitted onto the flexible hose of the sewage pipe. Then, the clamp 3 is tightened to fix the connecting ring 1 onto the butt joint, completing the installation of the device on the sewage pipe. Figure 2 As shown in the diagram. When connecting the sewage pipe to the aircraft's drain outlet, hold the handpiece 2 with both hands, then lift the connector and connect it to the drain outlet to complete the connection of the sewage pipe to the drain outlet. This reduces the inconvenience caused by the location of the drain outlet on the aircraft during the connection operation between the connector and the drain outlet, and also reduces the risk of hands coming into contact with the drain outlet.
[0025] When sewage enters the sewage pipe from the discharge outlet, the staff can support it by holding the handpiece 2, which increases the difficulty of the connector detaching from the discharge outlet due to the impact of sewage flowing in the sewage pipe, and reduces the risk of sewage leakage causing apron pollution.
[0026] See Figure 2 The handheld component 2 has a frame structure, which facilitates the observation of sewage flow on the hose, thereby making it easier to determine the sewage discharge status at the drain outlet. The handheld component 2 includes a gripping rod 4 and several connecting rods 5. The gripping rod 4 is in the shape of a ring, and each connecting rod 5 is arranged at an equal angle around the central axis of the gripping rod 4. The gripping rod 4 is connected to the inner side of the connecting ring 1 through the connecting rods 5. The two ends of the connecting rods 5 are fixed to the connecting ring 1 and the gripping rod 4 respectively, so that the two hands can be held away from the connector, reducing the risk of hand contamination when connecting the connector and the drain outlet.
[0027] See Figure 2 , Figure 3 The connecting rod 5 includes a main body 51 with a circular cross-section and an integrally connected connecting part 52 at its inner end. The connecting part 52 is fixed to the inner side of the connecting ring 1 and has an elliptical cross-section, which allows the connecting part 52 to be hidden inside the connecting ring 1, improving the visual appearance of the device and reducing the impact of the connecting part 52 on the effect of the clamp 3 in fixing the connecting ring 1 and the connector. At the same time, because the connecting part 52 can be clamped between the connecting ring 1 and the connector under the clamping of the clamp 3, it can have a certain degree of clamping and fixing effect. The outer end of the main body 51 is bent outward to form a folded part 53, which is fixed to the holding rod 4, increasing the distance between the holding rod 4 and the hose. This improves the convenience of lifting the connector by holding the holding rod 4 with both hands and reduces the risk of contact with the hose.
[0028] See Figure 3 The main bodies 51 are arranged together to form a receiving space 6 for the hose to pass through. A support ring 61 is provided in the receiving space 6. The main bodies 51 are arranged at equal angles around the central axis of the support ring 61. The main bodies 51 are fixed on the support ring 61 and the two are perpendicular to each other, which improves the stability of the frame structure of the handheld part 2.
[0029] See Figure 4 A raised strip unit 7 is provided between two adjacent connecting parts 52. The raised strip unit 7 includes several rubber strips 71. Each rubber strip 71 is arranged at equal intervals along the axial direction of the connecting ring 1 on the inner side of the connecting ring 1, which increases the friction between the connector and the connecting ring 1 and improves the stability of the connection state between the connector and the connecting ring 1, thereby reducing the risk of the connector detaching from the connecting ring 1 when the sewage flowing out of the drain outlet flows through the hose.
[0030] See Figure 5 The outer surface of the connecting ring 1 is provided with limiting units 8 corresponding to the clamps 3. The limiting unit 8 includes two limiting strips 81, which are integrally connected to the connecting ring 1. The two limiting strips 81 are symmetrically arranged relative to the clamps 3 and form a limiting groove 82 between them. The retaining ring 31 of the clamp 3 is located in the limiting groove 82, which ensures the stability of the position of the clamp 3 on the connecting ring 1 and also ensures that the clamp 3 effectively tightens the connection ring 1 and the butt joint. The two ends of the limiting strips 81 form a limiting opening 83 for accommodating the locking member 32 of the clamp 3. The limiting openings 83 on each limiting unit 8 are on the same straight line, which facilitates the adjustment of the tightening degree of each clamp 3.
[0031] The above description in this specification is merely illustrative of the present invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not depart from the content of this specification or exceed the scope defined in the claims, all of which shall fall within the protection scope of this invention.
Claims
1. An aircraft sewage port sewer pipe docking aid, characterized in that, include: A connecting ring, which is used to fit and fix to the connector of the sewage pipe, has a sheet-like structure and at least two clamps on its outer side. The handheld component is a hollow structure with openings at both ends. The connecting end of the handheld component is fixed to the inner side of the connecting ring, and the diameter of its gripping end is larger than the diameter of the connecting end. When the connecting ring is installed on the docking head, the flexible hose of the sewage pipe is threaded through the handheld part.
2. The aircraft waste access sewer pipe docking aid of Claim 1, wherein: The outer surface of the connecting ring is provided with limiting units corresponding to the clamps. Each limiting unit includes two limiting strips, which are integrally connected to the connecting ring. The two limiting strips are arranged symmetrically to the clamps and form a limiting groove between them. The clamp's retaining ring is located in the limiting groove. A limiting opening for accommodating the clamp's locking element is formed between the two ends of the limiting strips. The limiting openings on each limiting unit are on the same straight line.
3. The aircraft waste access sewer pipe docking aid of Claim 1, wherein: The handheld component is a frame structure, including a gripping rod and several connecting rods. The gripping rod is in the shape of a ring, and the connecting rods are arranged at equal angles around the central axis of the gripping rod. The gripping rod is connected to the inner side of the connecting ring through the connecting rods, and the two ends of the connecting rods are fixed to the connecting ring and the gripping rod respectively.
4. The aircraft waste access sewer pipe docking aid of Claim 3, wherein: The connecting rod includes a main body with a circular cross-section and an integrally connected connecting part at its inner end. The connecting part is fixed to the inner side of the connecting ring and has an elliptical cross-section. The outer end of the main body is bent outward to form a folded part, which is fixed to the gripping rod.
5. The auxiliary device for connecting the sewage pipe to the aircraft sewage outlet according to claim 4, characterized in that: The main bodies are arranged together to form a receiving space for the hose to pass through. A support ring is provided in the receiving space. The main bodies are arranged at equal angles around the central axis of the support ring. The main bodies are fixed on the support ring and the two are perpendicular to each other.
6. The auxiliary device for connecting the sewage pipe to the aircraft sewage outlet according to claim 4, characterized in that: A raised strip unit is provided between two adjacent connecting parts. The raised strip unit includes several rubber strips, and each rubber strip is arranged at equal intervals along the axial direction of the connecting ring on the inner side of the connecting ring.