Protection separation mechanism and connection method for water pipe of airplane sewage cleaning vehicle

Abstract

The invention discloses a protection separation mechanism and a connection method for a water pipe of an airplane sewage cleaning vehicle, and the protection separation mechanism comprises a sewage cleaning pipe which is used for connecting a carriage of the airplane sewage cleaning vehicle with an airplane storage box; the overload separation female head is connected with a sewage cleaning pipe which is connected with a compartment of the airplane sewage cleaning vehicle; and the overload separation male head is connected with a clean sewage pipe which is connected with the aircraft storage tank. According to the protection separation mechanism for the water pipe of the airplane sewage cleaning vehicle, through the design of the overload separation female head and the overload separation male head, automatic separation is achieved under the overload condition, an airplane interface is effectively protected, through the arrangement of the adjusting jackscrew, the separation force can be adjusted according to the use condition, the airplane interface is prevented from being damaged due to the too large separation force, and the situation that the airplane interface is damaged due to the too small separation force is avoided. And the clean sewage pipe is separated when being pulled, so that the safety and the reliability are improved, and the damage caused by misoperation is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of water pipes for aircraft sewage trucks, and particularly to a protection and detachment mechanism and connection method for water pipes of aircraft sewage trucks. Background Art

[0002] In the existing aircraft ground services, sewage trucks need to frequently connect and disconnect the interfaces of aircraft storage tanks. However, the existing connection methods have significant defects. Mainly, due to the mistakes or negligence of operators, the interfaces may be damaged. Such damage not only causes high maintenance costs but also may affect the normal operation of flights, bringing potential safety hazards.

[0003] Traditional water pipes of aircraft sewage trucks usually use fixed connection structures and lack effective overload protection mechanisms. When the sewage truck moves accidentally, a strong pulling force will directly act on the aircraft interface, easily causing damage to the aircraft interface and its surrounding areas.

[0004] Therefore, a protection and detachment mechanism for water pipes of aircraft sewage trucks is needed, which can automatically separate the connection under overload conditions, thereby effectively avoiding damage caused by misoperation and providing higher safety and reliability for aircraft ground services. Summary of the Invention

[0005] The purpose of this part is to outline some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, as well as in the abstract and title of the present application, to avoid obscuring the purpose of this part, the abstract, and the title. However, such simplifications or omissions shall not be used to limit the scope of the present invention.

[0006] In view of the problem that the existing protection and detachment mechanism for water pipes of aircraft sewage trucks lacks an effective overload protection mechanism, the present invention is proposed.

[0007] Therefore, the purpose of the present invention is to provide a protection and detachment mechanism for water pipes of aircraft sewage trucks, aiming to: be able to automatically separate and connect under overload conditions.

[0008] To solve the above technical problems, the present invention provides the following technical solutions: having: A sewage pipe for connecting the carriage of an aircraft sewage truck and an aircraft storage tank; An overload separation female head, which is connected to the sewage pipe for connecting from the carriage of the aircraft sewage truck; An overload separation male head, which is connected to the sewage pipe for connecting from the aircraft storage tank; An adjustment part, which is located on the overload separation female head and is used to connect the overload separation female head and the overload separation male head; A clamp, which fixes the sewage pipe from the carriage of the aircraft sewage truck to the female over - load separation head and fixes the sewage pipe from the aircraft storage tank to the male over - load separation head.

[0009] As a preferred embodiment of the protection and detachment mechanism of the water pipe of the aircraft sewage truck of the present invention, wherein: the female over - load separation head has a docking groove axially formed in it but not penetrating through the female over - load separation head. The docking groove is annularly arranged, the outer diameter of the docking groove is smaller than the outer diameter of the female over - load separation head, and the docking groove communicates with one end edge of the female over - load separation head. The docking groove is for inserting the male over - load separation head.

[0010] As a preferred embodiment of the protection and detachment mechanism of the water pipe of the aircraft sewage truck of the present invention, wherein: the male over - load separation head has a docking ring, which is formed on the end face of the male over - load separation head, extends axially on the male over - load separation head, and the extension length is the same as the length of the docking groove. The inner diameter of the docking ring is the same as the inner diameter of the docking groove, and the outer diameter of the docking ring is the same as the outer diameter of the docking groove. The docking ring is for inserting into the docking groove.

[0011] As a preferred embodiment of the protection and detachment mechanism of the water pipe of the aircraft sewage truck of the present invention, wherein: an end face is formed between the female over - load separation head and the docking groove; The female over - load separation head has an axial sealing ring on its inner circumferential surface, located between the adjusting part and the end face. The axial sealing ring is for installing the docking ring in the docking groove in a way that maintains watertightness.

[0012] As a preferred embodiment of the protection and detachment mechanism of the water pipe of the aircraft sewage truck of the present invention, wherein: the female over - load separation head has an end - face sealing ring on its end face. The end - face sealing ring is for installing the docking ring in the docking groove in a way that maintains watertightness.

[0013] As a preferred embodiment of the protection and detachment mechanism of the water pipe of the aircraft sewage truck of the present invention, wherein: the female over - load separation head has a stabilizing ring on the outer circumferential surfaces of the female over - load separation head and the male over - load separation head, extending circumferentially on the female over - load separation head and the male over - load separation head. The stabilizing ring extends throughout the entire circumference of the female over - load separation head and the male over - load separation head, and the stabilizing ring is for making the connection of the sewage pipe more stable.

[0014] As a preferred embodiment of the protection and detachment mechanism of the water pipe of the aircraft sewage truck of the present invention, wherein: the female over - load separation head has a mounting hole opening on the surface and provided with internal threads. The mounting hole is for installing the adjusting part.

[0015] As a preferred embodiment of the protection and detachment mechanism for the water pipe of the aircraft sewage truck of the present invention, wherein: the adjusting part includes an adjusting set screw, a spring, and a steel ball; The surface of the adjusting set screw is provided with an external thread and is connected to the mounting hole. The end of the adjusting set screw is provided with a cone, which is used to squeeze the spring more evenly. The spring is located between the adjusting set screw and the steel ball. The spring provides the elastic force required for the separation of the overload separation female head and the overload separation male head. The steel ball is located in the mounting hole. A groove adapted to the steel ball is formed on the outer surface of the docking ring. The depth or diameter of the groove is less than half of the diameter of the steel ball. The steel ball is used for the locking connection between the overload separation female head and the overload separation male head.

[0016] As a preferred embodiment of the protection and detachment mechanism for the water pipe of the aircraft sewage truck of the present invention, wherein: the clamp includes a steel ring arranged at the end of the sewage pipe of the aircraft sewage truck. The steel ring is arranged in a double helix. The number of turns of the steel ring is one, and the double helix is arranged in a mirror image. One end of the steel ring close to the outside extends along the helix and is provided with an upper elbow. The end of the upper elbow is provided with an upper guide rod. One end of the steel ring close to the inside extends along the helix and is provided with a lower elbow. One end of the lower elbow is provided with a lower guide rod. A connecting elbow is connected between the two lower guide rods.

[0017] As a preferred embodiment of the protection and detachment mechanism for the water pipe of the aircraft sewage truck of the present invention, wherein: the clamp further includes a pressing seat arranged on the upper guide rod, a screw hole arranged on the pressing seat, a threaded rod arranged on the screw hole, a pressing plate arranged on the threaded rod, an anti-detachment head arranged on the pressing plate, and a rotating cap arranged on the threaded rod.

[0018] The present invention also provides a connection method for the water pipe of the aircraft sewage truck, including bringing the docking ring on the overload separation male head close to the docking groove, and rotating the overload separation male head so that the groove on the docking ring and the adjusting set screw are on the same horizontal plane; Pushing the overload separation male head to insert the docking ring into the docking groove; The elastic force of the spring drives the steel ball to insert into the groove, completing the docking and fixing of the overload separation female head and the overload separation male head.

[0019] As a preferred embodiment of the connection method for the water pipe of the aircraft sewage truck of the present invention, wherein: it further includes fixedly connecting one end of the sewage pipe of the aircraft sewage truck to the carriage of the aircraft sewage truck; Fixing the other end of the sewage pipe of the aircraft sewage truck to the aircraft storage tank; Before the aircraft sewage truck moves for operation, the staff needs to manually separate the sewage pipe of the aircraft sewage truck from the aircraft storage tank first; If the staff forget to separate the clean and waste water pipe from the aircraft storage tank and directly drive the aircraft clean and waste water vehicle away, at this time, the clean and waste water pipe will be subjected to the pulling force of the carriage of the aircraft clean and waste water vehicle and the aircraft storage tank, and the overload separation female head and the overload separation male head will automatically separate, avoiding the vehicle directly pulling the interface between the clean and waste water pipe and the aircraft storage tank.

[0020] Advantages of the present invention: Through the design of the overload separation female head and the overload separation male head, the device automatically separates under overload conditions, effectively protecting the aircraft interface. By adjusting the setting of the setscrew, the separation force can be adjusted according to the usage situation, preventing the separation force from being too large and damaging the aircraft interface, and avoiding the separation force from being too small and causing detachment when pulling the clean and waste water pipe, thereby improving safety and reliability and reducing damage caused by operational errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 It is a schematic diagram of the structure of the clamp of the present invention.

[0024] Figure 3 It is a schematic diagram of the structure of the docking of the overload separation female head and the overload separation male head of the present invention.

[0025] Figure 4 It is a cross-sectional view of the overload separation female head and the overload separation male head of the present invention.

[0026] Figure 5 For the present invention Figure 4 A partial enlarged schematic view at position A in the figure.

[0027] Figure 6 It is a cross-sectional plan view of the overload separation female head and the overload separation male head of the present invention.

[0028] Figure 7 For the present invention Figure 6 A partial enlarged schematic view at position B in the figure.

[0029] Figure 8 It is a schematic diagram of the structure of the adjustment part of the present invention.

[0030] Figure 9 It is a schematic diagram of the structure of the docking groove and the docking ring in an arc shape of the present invention.

[0031] Figure 10 This is a schematic diagram of the structure of the present invention where the inner diameter of the docking groove is larger than the inner diameter of the overload separation female head.

[0032] Figure 11 This is a schematic diagram of the structure of the concave part in the stabilizing ring of the present invention.

[0033] Figure 12 This is a schematic diagram showing an example of the connection structure of the clean and sewage pipes. Detailed implementation manners

[0034] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following will describe the detailed implementation manners of the present invention with reference to the accompanying drawings of the specification.

[0035] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0036] Secondly, the so-called "one embodiment" or "embodiment" herein refers to specific features, structures, or characteristics that may be included in at least one implementation manner of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that mutually excludes other embodiments.

[0037] Thirdly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for the sake of convenience of explanation, the cross-sectional views showing the device structure will be enlarged locally not in accordance with the general scale, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention herein. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0038] Embodiment 1, referring to Figure 1 , which is the first embodiment of the present invention, provides a protection and detachment mechanism for the water pipes of an aircraft clean and sewage vehicle. This mechanism includes a clean and sewage pipe 101, an overload separation female head 201, an overload separation male head 202, and an adjustment part 302.

[0039] Among them, the clean and sewage pipe 101 is used to connect the compartment 401 of the aircraft clean and sewage vehicle to the aircraft storage tank 402. The overload separation female head 201 is connected to the clean and sewage pipe 101 for connecting from the compartment 401 of the aircraft clean and sewage vehicle. The overload separation male head 202 is connected to the clean and sewage pipe 101 for connecting from the aircraft storage tank 402. And, the adjustment part 302 is located on the overload separation female head 201 and is used to connect the overload separation female head 201 and the overload separation male head 202.

[0040] When the aircraft sewage and water truck is moving and the sewage and water pipe 101 is not separated from the aircraft storage tank 402 in time, the two ends of the sewage and water pipe 101 are subjected to tensile forces at this time. The tensile forces drive the overload separation female head 201 and the overload separation male head 202 to generate a separation force. The force when the overload separation female head 201 and the overload separation male head 202 are separated from each other causes the adjusting part 302 to contract, thereby releasing the limit on the overload separation male head 202. Therefore, in the case of overload, the overload separation female head 201 and the overload separation male head 202 are automatically separated, effectively protecting the interface of the aircraft storage tank 402.

[0041] Embodiment 2. Refer to Figures 1 to 12 , which is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is: the clamp 102, which fixes the sewage and water pipe 101 from the aircraft sewage and water truck compartment 401 to the overload separation female head 201, and fixes the sewage and water pipe 101 from the aircraft storage tank 402 to the overload separation male head 202.

[0042] The overload separation female head 201 has a docking groove 201a that does not penetrate the overload separation female head 201 axially. The docking groove 201a is annularly arranged. The outer diameter of the docking groove 201a is smaller than the outer diameter of the overload separation female head 201. The docking groove 201a communicates with one end edge of the overload separation female head 201. The docking groove 201a is used for inserting the overload separation male head 202.

[0043] The overload separation male head 202 has a docking ring 202a, which is formed on the end face of the overload separation male head 202 and extends axially on the overload separation male head 202, and the extension length is the same as the length of the docking groove 201a. The inner diameter of the docking ring 202a is the same as the inner diameter of the docking groove 201a, and the outer diameter of the docking ring 202a is the same as the outer diameter of the docking groove 201a. The docking ring 202a is used for inserting into the docking groove 201a.

[0044] Furthermore, the overload separation female head 201 has a docking groove 201a that does not penetrate the overload separation female head 201 axially. This design makes the sealing performance better after the overload separation female head 201 and the overload separation male head 202 are docked. (Refer to Figure 7 ) Due to the non-penetrating setting, the water flow needs to pass through the first docking seam H first, and then through the second docking seam I before the water will overflow. If a through-type design is adopted, the first docking seam H will be missing, affecting the sealing effect of the device.

[0045] Furthermore, the docking groove 201a is annularly arranged, so the docking ring 202a is also correspondingly annularly arranged. When the docking ring 202a is inserted into the docking groove 201a, as Figure 7As the docking ring 202a is annularly arranged, an annular second docking seam I is formed between the docking groove 201a and the docking ring 202a, ensuring the sealing effect of the device. If both the docking groove 201a and the docking ring 202a are arc-shaped (refer to Figure 9 ), the end face of the over-travel separation female head 201 will form an end face V, and water seepage is likely to occur between the end face V and the end face of the over-travel separation male head 202, affecting the use effect of the device.

[0046] Furthermore, the outer diameter of the docking groove 201a is smaller than the outer diameter of the over-travel separation female head 201. In this embodiment, the inner diameter of the docking groove 201a is the same as the inner diameter of the over-travel separation female head 201. However, it is not limited thereto, and the inner diameter of the docking groove 201a can be larger than the inner diameter of the over-travel separation female head 201 (refer to Figure 10 ).

[0047] Furthermore, the docking groove 201a communicates with one end edge of the over-travel separation female head 201, enabling the docking ring 202a to be directly inserted into the docking groove 201a, facilitating the docking and insertion of the over-travel separation female head 201 and the over-travel separation male head 202. If one end of the docking groove 201a is not connected, the over-travel separation female head 201 and the over-travel separation male head 202 cannot be docked and inserted.

[0048] An end face U is formed between the over-travel separation female head 201 and the docking groove 201a.

[0049] The over-travel separation female head 201 has an axial sealing ring 203 on its inner peripheral surface, located between the adjusting part 302 and the end face U. The axial sealing ring 203 is used to install the docking ring 202a in the docking groove 201a in a way that maintains watertightness.

[0050] Furthermore, the inner diameter of the docking ring 202a is approximately equal to or slightly larger than the inner diameter of the docking groove 201a as the lower limit, and the outer diameter of the docking ring 202a is equal to or slightly smaller than the outer diameter of the docking groove 201a as the upper limit, enabling the docking ring 202a to be not only conveniently inserted into the docking groove 201a but also ensuring the sealing effect of the axial sealing ring 203 on the second docking seam I.

[0051] Furthermore, the axial sealing ring 203 is located between the adjusting part 302 and the end face U, blocking the water seeping out of the end face sealing ring 204 and preventing it from flowing out through the adjusting part 302. If the adjusting part 302 is closer to the end face U than the axial sealing ring 203, the water seeping out of the end face sealing ring 204 will flow out through the adjusting part 302, affecting the sealing effect of the device.

[0052] Furthermore, (refer to Figure 7A chamfer M is provided on the outer edge of the end face of the docking ring 202a, which not only makes it easier for the docking ring 202a to be inserted into the docking groove 201a, but also squeezes the axial sealing ring 203 by the chamfer M to cause the axial sealing ring 203 to contract, so that the axial sealing ring 203 can easily cross the end of the docking ring 202a.

[0053] The overloading separation female head 201 has an end face sealing ring 204 at the end face U of the overloading separation female head 201. The end face sealing ring 204 is used to install the docking ring 202a in the docking groove 201a in a way that maintains watertightness. Among them, an installation groove is opened at the end face U of the overloading separation female head 201 for installing the end face sealing ring 204. The end face sealing ring 204 is in close contact with the end face of the docking ring 202a through its own elasticity, so as to ensure the sealing of the first docking seam H.

[0054] Furthermore, the axial sealing ring 203 and the end face sealing ring 204 are formed of elastic materials such as synthetic rubber, natural rubber or their mixtures, or elastic materials such as silicone rubber. The gap between the overloading separation female head 201 and the overloading separation male head 202 is sealed through the axial sealing ring 203 and the end face sealing ring 204, so as to maintain the watertightness between the overloading separation female head 201 and the overloading separation male head 202.

[0055] Furthermore, the docking ring 202a extends axially on the overloading separation male head 202, and the extension length is approximately equal to or slightly smaller than the length of the docking groove 201a as the lower limit. After the docking ring 202a is inserted into the docking groove 201a, the end of the docking ring 202a can be in close contact with the end face sealing ring 204, so as to ensure the sealing effect of the end face sealing ring 204 on the first docking seam H.

[0056] The overloading separation female head 201 has a stabilizing ring 205 on the outer peripheral surfaces of the overloading separation female head 201 and the overloading separation male head 202, which extends circumferentially on the overloading separation female head 201 and the overloading separation male head 202. The stabilizing ring 205 extends throughout the entire circumference of the overloading separation female head 201 and the overloading separation male head 202, and the stabilizing ring 205 is used to make the connection of the clean and sewage pipe 101 more stable.

[0057] Furthermore, (refer to Figure 5The outer peripheral surface of the stabilizing ring 205 is inclined, the side surface of the stabilizing ring 205 is vertical, the projection of the cross-section of the stabilizing ring 205 is a right triangle, and the inclined surface of the stabilizing ring 205 facilitates the insertion of the sewage cleaning pipe 101. The vertical surface makes the stabilizing ring 205 in the shape of barbs, increasing the friction when the sewage cleaning pipe 101 is pulled out, thereby increasing the connection stability between the sewage cleaning pipe 101 and the overload separation female head 201 and the overload separation male head 202. In this embodiment, the stabilizing ring 205 protrudes and extends on the outer peripheral surface of the overload separation female head 201. However, it is not limited thereto, and the stabilizing ring 205 can be recessed and extended on the outer peripheral surface of the overload separation female head 201 (refer to Figure 11 ), and the outer diameters of the overload separation female head 201 and the overload separation male head 202 can be reduced according to the inner diameter of the sewage cleaning pipe 101 (refer to Figure 11 ), so that the device is adapted to sewage cleaning pipes 101 of different calibers and the applicability of the device is increased.

[0058] The overload separation female head 201 has a mounting hole 301 that opens on the surface and is provided with internal threads, and the mounting hole 301 is used to mount the adjusting part 302.

[0059] Furthermore, in this embodiment, six mounting holes 301 are provided, and they have an interval of 60 degrees in the circumferential direction. However, it is not limited thereto, and the mounting holes 301 can also be provided with four or eight, so that the force received by each adjusting part 302 is relatively balanced, and thus the force required for the overload separation female head 201 and the overload separation male head 202 to separate is relatively constant, avoiding a large difference in the force required for each separation. When the force for the overload separation female head 201 and the overload separation male head 202 to separate is greater than F, the interface between the sewage cleaning pipe 101 and the aircraft will be damaged. Therefore, the force for locking the adjusting part 302 is set to be less than F. When the locking force is relatively constant, the force for the overload separation female head 201 and the overload separation male head 202 to separate is necessarily less than F. When one or two adjusting parts 302 are provided, the force for the overload separation female head 201 and the overload separation male head 202 to separate is unstable, and the force during separation is greater than the set force, resulting in the force during separation may be greater than F, thus causing damage to the interface of the aircraft.

[0060] The adjusting part 302 includes an adjusting setscrew 302a, a spring 302b, and a steel ball 302c.

[0061] The surface of the adjusting setscrew 302a is provided with external threads and is connected to the mounting hole 301. The end of the adjusting setscrew 302a is provided with a conical body, which is used to squeeze the spring 302b more evenly. The spring 302b is located between the adjusting setscrew 302a and the steel ball 302c. The spring 302b provides the elastic force required for the separation of the overload separation female head 201 and the overload separation male head 202. The steel ball 302c is located in the mounting hole 301. A groove adapted to the steel ball 302c is formed on the outer surface of the docking ring 202a. The depth or diameter of the groove is less than half of the diameter of the steel ball 302c. The steel ball 302c is used for the locking connection between the overload separation female head 201 and the overload separation male head 202.

[0062] Further, the adjusting setscrew 302a is threadedly connected to the mounting hole 301. The conical body at the end of the adjusting setscrew 302a is used to squeeze the spring 302b, making the force of the squeezed spring 302b more uniform. The spring 302b is slidably arranged in the mounting hole 301. The end of the spring 302b is fixedly connected with a pressing seat adapted to the steel ball 302c. The pressing seat is used to mount the steel ball 302c to prevent the steel ball 302c from popping out when the overload separation female head 201 and the overload separation male head 202 are separated, increasing the safety of the device. A groove adapted to the steel ball 302c is formed on the outer surface of the docking ring 202a. The depth or diameter of the groove is less than half of the diameter of the steel ball 302c (refer to Figure 7 ). When the depth or diameter of the groove is greater than or equal to half of the diameter of the steel ball 302c, when the docking ring 202a moves axially, the groove cannot make the steel ball 302c contract, resulting in the device being unable to be used.

[0063] Next, based on Figure 12 an example of the connection structure between the overload separation female head 201 and the overload separation male head 202 will be described. In addition, in Figure 12 the arrow FR represents the front side in the vehicle traveling direction, and the arrow RR represents the rear side in the vehicle traveling direction.

[0064] The aircraft cleaning and sewage truck carriage 401 is equipped with a cleaning and sewage pipe 101. The aircraft cleaning and sewage truck carriage 401 is the general term for the aircraft clean water truck carriage and the aircraft sewage truck carriage. The aircraft clean water truck carriage is the water storage tank on the aircraft clean water truck, and the aircraft sewage truck carriage is the carriage on the aircraft sewage truck. The aircraft sewage truck is a special vehicle used in aircraft ground services, specifically responsible for collecting and transporting the sewage and wastewater on the aircraft. This sewage includes the remaining drinks on the aircraft, toilet sewage, and other wastewater generated during the flight. The main function of the sewage truck carriage is to collect the sewage on the aircraft through pipes and then transport it to the sewage treatment station for treatment uniformly. The aircraft clean water truck is an airport ground special vehicle dedicated to providing clean water to the aircraft. The main function of this vehicle is to replenish drinking water for the aircraft for passengers and crew to use during the flight.

[0065] The aircraft storage tank 402 is the general term for the aircraft sewage tank and the aircraft fresh water tank.

[0066] One end of the sewage and fresh water pipe 101 is connected and fixed to the carriage 401 of the aircraft sewage and fresh water vehicle, and the other end of the sewage and fresh water pipe 101 is connected and fixed to the aircraft storage tank 402. Under normal operation, the staff needs to first separate the sewage and fresh water pipe 101 from the aircraft storage tank 402, and then drive the aircraft sewage and fresh water vehicle away. However, due to the huge workload, it is inevitable that the staff forgets to separate the sewage and fresh water pipe 101 from the aircraft storage tank 402. At this time, when directly driving the aircraft sewage and fresh water vehicle away, the carriage 401 of the aircraft sewage and fresh water vehicle drives the sewage and fresh water pipe 101 to move along the FR direction. When the sewage and fresh water pipe 101 is subjected to the pulling forces of the carriage 401 of the aircraft sewage and fresh water vehicle and the aircraft storage tank 402, the groove on the docking ring 202a squeezes the steel ball 302c to make the steel ball 302c contract, releasing the limit of the docking ring 202a, so that the overload separation female head 201 is separated from the overload separation male head 202, avoiding the vehicle directly pulling the sewage and fresh water pipe 101 to damage the interface part between the sewage and fresh water pipe 101 and the aircraft storage tank 402.

[0067] The remaining structure is the same as that of Embodiment 1.

[0068] Embodiment 3, referring to Figure 1 and Figure 2 This is the third embodiment of the present invention. The difference between this embodiment and the second embodiment is that the clamp 102 includes a steel ring 102a arranged at the end of the sewage and fresh water pipe 101. The steel ring 102a is arranged in a double helix, the number of turns of the steel ring 102a is one turn, and the double helix is arranged in a mirror image. One end of the steel ring 102a close to the outside extends along the helix and is provided with an upper elbow 102b, and the end of the upper elbow 102b is provided with an upper guide rod 102c. One end of the steel ring 102a close to the inside extends along the helix and is provided with a lower elbow 102d, and one end of the lower elbow 102d is provided with a lower guide rod 102e. A connecting elbow 102f is connected between the two lower guide rods 102e.

[0069] The clamp 102 further includes an extrusion seat 103a arranged on the upper guide rod 102c, a screw hole 103b arranged on the extrusion seat 103a, a threaded rod 103c arranged on the screw hole 103b, an extrusion plate 103d arranged on the threaded rod 103c, an anti - detachment head 103e arranged on the extrusion plate 103d, and a rotating cap 103f arranged on the threaded rod 103c.

[0070] Further, the upper elbow 102b is bent at 180 degrees, making the orientation of the upper guide rod 102c opposite to the orientation of the outer end of the steel ring 102a. The lower elbow 102d is bent at 90 degrees and faces away from the screw center of the steel ring 102a. The lower guide rod 102e is used to extend the end of the lower elbow 102d. The connecting elbow 102f is bent at 180 degrees and is used to connect the ends of the two lower guide rods 102e, making the ends inside the two steel rings 102a in a closed state.

[0071] Further, the extrusion seat 103a is slidably connected to the upper guide rod 102c. The threaded rod 103c is threadedly connected to the screw hole 103b. Rotating the threaded rod 103c moves the screw hole 103b. The direction in which the screw hole 103b moves is opposite to the direction of the end of the anti - detachment head 103e. Therefore, the anti - detachment head 103e and the screw hole 103b move away from each other. The diameter of the extrusion plate 103d on the threaded rod 103c is larger than that of the connecting elbow 102f. Therefore, the extrusion plate 103d moves to squeeze the connecting elbow 102f. At the same time, the extrusion seat 103a moves to squeeze the upper elbow 102b. The upper elbow 102b and the connecting elbow 102f move away from each other, causing the two ends of the steel ring 102a to move away from each other, thereby tightening the steel ring 102a. The tightened steel ring 102a squeezes the clear and sewage pipe 101, thereby fixing the clear and sewage pipe 101 on the overload separation female head 201 and the overload separation male head 202.

[0072] The remaining structure is the same as that of Embodiment 2.

[0073] Embodiment 4 is the fourth embodiment of the present invention. The difference between this embodiment and the third embodiment is: A connection method for the water pipe of an aircraft clear and sewage truck, including bringing the docking ring 202a on the overload separation male head 202 close to the docking groove 201a, and rotating the overload separation male head 202 so that the groove on the docking ring 202a is on the same horizontal plane as the adjusting set screw 302a. Push the overload separation male head 202 so that the docking ring 202a is inserted into the docking groove 201a. The elastic force of the spring 302b drives the steel ball 302c to insert into the groove, completing the docking and fixing of the overload separation female head 201 and the overload separation male head 202.

[0074] It also includes fixedly connecting one end of the clear and sewage pipe 101 to the aircraft clear and sewage truck carriage 401. Fixedly connecting the other end of the clear and sewage pipe 101 to the aircraft storage tank 402. Before the aircraft clear and sewage truck moves for operation, the staff needs to manually separate the clear and sewage pipe 101 from the aircraft storage tank 402 first. If the staff forgets to separate the clear and sewage pipe 101 from the aircraft storage tank 402 and directly drives the aircraft clear and sewage truck away, at this time, the clear and sewage pipe 101 will be subjected to the pulling forces of the aircraft clear and sewage truck carriage 401 and the aircraft storage tank 402, and the overload separation female head 201 and the overload separation male head 202 will automatically separate, avoiding the vehicle directly pulling the interface between the clear and sewage pipe 101 and the aircraft storage tank 402.

[0075] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A protective detachment mechanism for a water pipe of an aircraft sewage truck, characterized in that: have: A sewage pipe (101) for connecting the aircraft sewage truck compartment (401) and the aircraft storage box (402); An overload separation female connector (201) connected to a sewage pipe (101) for connecting sewage from the aircraft sewage truck compartment (401); An overload separation male connector (202) connected to a clean water pipe (101) for connecting clean water from the aircraft storage tank (402); an adjusting portion (302), which is located on the overload separation female head (201) and is used to connect the overload separation female head (201) and the overload separation male head (202); A clamp (102) used to fix a clean sewage pipe (101) connected to the aircraft clean sewage truck compartment (401) to the overload separation female connector (201), and used to fix a clean sewage pipe (101) connected to the aircraft storage box (402) to the overload separation male connector (202); The overload separation female head (201) has a mounting hole (301) which is open on the surface and has an internal thread, and the mounting hole (301) is used to mount the adjustment part (302); The adjusting portion (302) comprises an adjusting top screw (302a), a spring (302b), and a steel ball (302c); The surface of the adjusting top screw (302a) is provided with an external thread and is connected to the mounting hole (301); a cone is provided at the end of the adjusting top screw (302a); the cone is used to compress the spring (302b) to make it more balanced; the spring (302b) is located between the adjusting top screw (302a) and the steel ball (302c); the spring (302b) provides the elastic force required for the overload separation female head (201) to separate from the overload separation male head (202); the steel ball (302c) is located in the mounting hole (301); a groove matching the steel ball (302c) is provided on the outer surface of the docking ring (202a); the depth or diameter of the groove is less than half the diameter of the steel ball (302c); the steel ball (302c) is used for locking the overload separation female head (201) with the overload separation male head (202).

2. The protective detachment mechanism for the water pipe of the aircraft sewage truck according to claim 1, characterized in that: The overload separation female head (201) has a docking groove (201a) which does not penetrate the overload separation female head (201) in the axial direction; the docking groove (201a) is arranged in an annular shape; the outer diameter of the docking groove (201a) is smaller than the outer diameter of the overload separation female head (201); the docking groove (201a) is connected to an end edge of the overload separation female head (201); and the docking groove (201a) is used to allow the overload separation male head (202) to be inserted.

3. The protective detachment mechanism for the water pipe of the aircraft sewage truck according to claim 2, characterized in that: The overload separation male head (202) has a docking ring (202a), which is formed on the end face of the overload separation male head (202) and extends in the axial direction of the overload separation male head (202), and the extension length is the same as the length of the docking groove (201a); the inner diameter of the docking ring (202a) is the same as the inner diameter of the docking groove (201a); the outer diameter of the docking ring (202a) is the same as the outer diameter of the docking groove (201a); and the docking ring (202a) is used to be inserted into the docking groove (201a).

4. The protective detachment mechanism for the water pipe of the aircraft sewage truck according to claim 3, characterized in that: An end surface (U) is formed between the overload separation female connector (201) and the docking groove (201a); The overload separation female head (201) has an axial sealing ring (203) which is located on the inner circumferential surface of the overload separation female head (201) between the adjustment portion (302) and the end surface (U); the axial sealing ring (203) is used to install the docking ring (202a) in the docking groove (201a) in a manner that maintains water tightness.

5. The protective detachment mechanism for the water pipe of the aircraft sewage truck according to claim 3 or 4, characterized in that: The overload separation female head (201) has an end face sealing ring (204) on the end face (U) of the overload separation female head (201), and the end face sealing ring (204) is used to install the docking ring (202a) in the docking groove (201a) in a manner that maintains water tightness.

6. The protective detachment mechanism for the water pipe of the aircraft sewage truck according to any one of claims 1 to 4, characterized in that: The overload separation female head (201) has a stabilizing ring (205), which is on the outer peripheral surface of the overload separation female head (201) and the overload separation male head (202), and extends in the circumferential direction of the overload separation female head (201) and the overload separation male head (202); the stabilizing ring (205) extends over the entire circumference of the overload separation female head (201) and the overload separation male head (202); the stabilizing ring (205) is used to make the connection of the clean and sewage pipe (101) more stable.

7. The protective detachment mechanism for the water pipe of the aircraft sewage truck according to claim 6, characterized in that: The clamp (102) comprises a steel ring (102a) arranged at the end of the clean sewage pipe (101), the steel ring (102a) being arranged in a double helix, the number of turns of the steel ring (102a) being one, and the double helix being arranged in a mirror image, the end of the steel ring (102a) close to the outside extending along the helix and being provided with an upper elbow (102b), the end of the upper elbow (102b) being provided with an upper guide rod (102c), the end of the steel ring (102a) close to the inside extending along the helix and being provided with a lower elbow (102d), one end of the lower elbow (102d) being provided with a lower guide rod (102e), and a connecting elbow (102f) being connected between the two lower guide rods (102e).

8. The protective detachment mechanism for the water pipe of the aircraft sewage truck according to claim 7, characterized in that: The clamp (102) further comprises an extrusion seat (103a) arranged on the upper guide rod (102c), a screw hole (103b) arranged on the extrusion seat (103a), a threaded rod (103c) arranged on the screw hole (103b), an extrusion plate (103d) arranged on the threaded rod (103c), an anti-slip head (103e) arranged on the extrusion plate (103d), and a rotating cap (103f) arranged on the threaded rod (103c).

9. A method for connecting water pipes of aircraft sewage cleaning vehicles, characterized in that: include, Place the docking ring (202a) on the overload separation male head (202) close to the docking groove (201a), and rotate the overload separation male head (202) so that the groove on the docking ring (202a) and the adjusting top screw (302a) are on the same horizontal plane; Pushing the overload separation male head (202) to insert the docking ring (202a) into the docking groove (201a); The elastic force of the spring (302b) drives the steel ball (302c) to be inserted into the groove, thereby completing the docking and fixing of the overload separation female head (201) and the overload separation male head (202).

10. The protective detachment mechanism for the water pipe of the aircraft sewage truck according to claim 9, characterized in that: Also includes, One end of the clean sewage pipe (101) is fixedly connected to the aircraft clean sewage truck compartment (401); The other end of the clean sewage pipe (101) is fixedly connected to the aircraft storage box (402); Before moving the aircraft sewage cleaning truck, the staff needs to manually separate the sewage cleaning pipe (101) from the aircraft storage box (402); If the staff forgets to separate the sewage pipe (101) from the aircraft storage box (402) and directly drives away with the sewage truck, the sewage pipe (101) will be pulled by the aircraft sewage truck compartment (401) and the aircraft storage box (402), and the overload separation female head (201) and the overload separation male head (202) will automatically separate, thereby preventing the vehicle from directly pulling the interface between the sewage pipe (101) and the aircraft storage box (402).

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