Usage method of a water pipe protection and detachment mechanism for an aircraft sewage and clean water truck

Abstract

The invention discloses a usage method of a water pipe protection and detachment mechanism for an aircraft sewage truck, including a sewage pipe for connecting the carriage of the aircraft sewage truck to an aircraft storage tank; an overload separation female head connected to the sewage pipe for connecting the carriage of the aircraft sewage truck; and an overload separation male head connected to the sewage pipe for connecting the aircraft storage tank. The usage method of the water pipe protection and detachment mechanism for the aircraft sewage truck, through the design of the overload separation female head and the overload separation male head, automatically separates in case of overload, 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 sewage pipe, thereby improving safety and reliability and reducing damage caused by operation errors.

Description

Technical Field

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

[0002] In current 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. Specifically, due to the mistakes or negligence of operators, the interfaces may be damaged. Such damage not only causes high repair costs but also may affect the normal operation of flights, posing 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 accidentally moves, 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 method for using a protection and disconnection mechanism for water pipes of aircraft sewage trucks is needed, which can automatically separate the connection under overload conditions, thus 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. 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 method for using a protection and disconnection 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 method for using a protection and disconnection mechanism for water pipes of aircraft sewage trucks, aiming to: automatically separate the connection under overload conditions.

[0008] To solve the above technical problems, the present invention provides the following technical solutions: including,

[0009] Fix one end of the sewage pipe to the carriage of the aircraft sewage truck;

[0010] Fix the other end of the sewage pipe to the aircraft storage tank;

[0011] Before the aircraft sewage truck moves, the staff needs to manually separate the sewage pipe from the aircraft storage tank first;

[0012] If the staff forgets to separate the clean and sewage pipe from the aircraft storage tank and directly drives the aircraft clean and sewage truck away, at this time, the clean and sewage pipe will be subjected to the pulling forces of the aircraft clean and sewage truck carriage 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 sewage pipe and the aircraft storage tank;

[0013] The clean and sewage pipe is used to connect the aircraft clean and sewage truck carriage and the aircraft storage tank;

[0014] The overload separation female head is connected to the clean and sewage pipe used to connect the aircraft clean and sewage truck carriage;

[0015] The overload separation male head is connected to the clean and sewage pipe used to connect the aircraft storage tank;

[0016] The adjusting part is located on the overload separation female head and is used to connect the overload separation female head and the overload separation male head;

[0017] The overload separation female head has a mounting hole that opens on the surface and is provided with internal threads, and the mounting hole is used to mount the adjusting part;

[0018] The adjusting part includes an adjusting setscrew, a spring, and a steel ball;

[0019] The surface of the adjusting setscrew is provided with external threads and is connected to the mounting hole. The end of the adjusting setscrew is provided with a cone, and the cone is used to squeeze the spring more evenly. The spring is located between the adjusting setscrew 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 opened on the outer surface of the docking ring, and 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 of the overload separation female head and the overload separation male head.

[0020] As a preferred scheme of the use method of the water pipe protection and disconnection mechanism of the aircraft clean and sewage truck of the present invention, wherein: the overload separation female head has a docking groove that does not penetrate the overload separation female head axially. The docking groove is annularly arranged, the outer diameter of the docking groove is smaller than the outer diameter of the overload separation female head, the docking groove communicates with one end edge of the overload separation female head, and the docking groove is used for the overload separation male head to be inserted.

[0021] As a preferred scheme of the use method of the water pipe protection and disconnection mechanism of the aircraft clean and sewage truck of the present invention, wherein: the overload separation male head has a docking ring formed on the end face of the overload separation male head, extending axially on the overload separation male head, and the extending 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 used to be inserted into the docking groove.

[0022] As a preferred embodiment of the method of using the water pipe protection and disconnection mechanism of the aircraft sewage truck according to the present invention, wherein: an end face is formed between the overload separation female head and the docking groove;

[0023] The overload separation female head has an axial sealing ring on its inner peripheral surface between the adjusting portion and the end face, and the axial sealing ring is used to install the docking ring in the docking groove in a water-tight manner.

[0024] As a preferred embodiment of the method of using the water pipe protection and disconnection mechanism of the aircraft sewage truck according to the present invention, wherein: the overload separation female head has an end face sealing ring on its end face, and the end face sealing ring is used to install the docking ring in the docking groove in a water-tight manner.

[0025] As a preferred embodiment of the method of using the water pipe protection and disconnection mechanism of the aircraft sewage truck according to the present invention, wherein: the overload separation female head has a stabilizing ring on the outer peripheral surfaces of the overload separation female head and the overload separation male head, extending in the circumferential direction of the overload separation female head and the overload separation male head, and the stabilizing ring extends throughout the entire circumference of the overload separation female head and the overload separation male head, and the stabilizing ring is used to make the connection of the sewage pipe more stable.

[0026] As a preferred embodiment of the method of using the protection and disconnection mechanism of the water pipe of the aircraft sewage truck according to the present invention, wherein: further included is

[0027] A clamp for fixing the sewage pipe connected from the carriage of the aircraft sewage truck to the overload separation female head and for fixing the sewage pipe connected from the aircraft storage tank to the overload separation male head;

[0028] The clamp includes a steel ring provided at the end of the sewage pipe, 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, and 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, and one end of the lower elbow is provided with a lower guide rod. A connecting elbow is connected between the two lower guide rods.

[0029] As a preferred embodiment of the method of using the water pipe protection and disconnection mechanism of the aircraft sewage truck according to the present invention, wherein: the clamp further includes a pressing seat provided on the upper guide rod, a screw hole provided on the pressing seat, a threaded rod provided on the screw hole, a pressing plate provided on the threaded rod, an anti-disengagement head provided on the pressing plate, and a rotating cap provided on the threaded rod.

[0030] As a preferred embodiment of the method for using the water pipe protection and detachment mechanism of the aircraft sewage truck according to the present invention, it further includes:

[0031] Bring the docking ring on the overload separation male head close to the docking groove, and rotate the overload separation male head so that the groove on the docking ring is on the same horizontal plane as the adjusting set screw;

[0032] Push the overload separation male head to insert the docking ring into the docking groove;

[0033] The elastic force of the spring drives the steel ball to insert into the groove, completing the docking and fixation of the overload separation female head and the overload separation male head.

[0034] Advantages of the present invention: Through the design of the overload separation female head and the overload separation male head, the device automatically separates in case of overload, effectively protecting the aircraft interface. With the setting of the adjusting set screw, 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 sewage pipe, thereby improving safety and reliability and reducing damage caused by operation errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0036] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0037] Figure 2 It is a schematic diagram of the structure of the clamp of the present invention.

[0038] Figure 3 It is a schematic diagram of the docking of the overload separation female head and the overload separation male head of the present invention.

[0039] Figure 4 It is a cross-sectional view of the overload separation female head and the overload separation male head of the present invention.

[0040] Figure 5 For the present invention Figure 4 Local enlarged schematic diagram at position A.

[0041] 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.

[0042] Figure 7 For the present invention Figure 6 Local enlarged schematic diagram at position B.

[0043] Figure 8 It is a schematic structural diagram of the adjustment part of the present invention.

[0044] Figure 9 It is a schematic structural diagram of the docking groove and the docking ring of the present invention being arc-shaped.

[0045] Figure 10 It is a schematic structural diagram of the inner diameter of the docking groove of the present invention being larger than the inner diameter of the overload separation female head.

[0046] Figure 11 It is a schematic structural diagram of the stable circle being concave inward in the present invention.

[0047] Figure 12 It is a schematic diagram showing an example of the connection structure of the clean and sewage pipes. Specific Embodiments

[0048] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings of the specification.

[0049] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0050] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation manner of the present invention. The "in one embodiment" appearing in different places in this specification does not all refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0051] Thirdly, the present invention is described in detail in conjunction with the schematic diagrams. When describing the embodiments of the present invention in detail, for the 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, which should not limit the scope of protection of the present invention herein. In addition, in actual production, three-dimensional spatial dimensions of length, width and depth should be included.

[0052] Embodiment 1, referring to Figure 1 , which is the first embodiment of the present invention, provides a method for using a water pipe protection and detachment mechanism of an aircraft clean and sewage truck. The water pipe protection and detachment mechanism of the aircraft clean and sewage truck has a clean and sewage pipe 101, an overload separation female head 201, an overload separation male head 202 and an adjustment part 302.

[0053] Among them, the clean and waste water pipe 101 is used to connect the carriage 401 of the aircraft clean and waste water vehicle to the aircraft storage tank 402. The overload separation female head 201 is connected to the clean and waste water pipe 101 for connecting the carriage 401 of the aircraft clean and waste water vehicle. The overload separation male head 202 is connected to the clean and waste water pipe 101 for connecting the aircraft storage tank 402. And, the adjusting 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.

[0054] When the aircraft clean and waste water vehicle moves and the clean and waste water pipe 101 fails to separate from the aircraft storage tank 402 in time, at this time, both ends of the clean and waste water pipe 101 are subjected to tensile forces, and the tensile forces drive the overload separation female head 201 and the overload separation male head 202 to generate a separation force. When the overload separation female head 201 and the overload separation male head 202 are separated from each other, the force 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.

[0055] 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 is fixed to the clean and waste water pipe 101 for connecting the carriage 401 of the aircraft clean and waste water vehicle and the overload separation female head 201, and is fixed to the clean and waste water pipe 101 for connecting the aircraft storage tank 402 and the overload separation male head 202.

[0056] The overload separation female head 201 has a docking groove 201a that does not penetrate the overload separation female head 201 in the axial direction. 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.

[0057] 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. The docking ring 202a is used for inserting into the docking groove 201a.

[0058] Furthermore, the overload separation female head 201 has a docking groove 201a that does not penetrate the overload separation female head 201 in the axial direction. 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-through 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 overflows. If a through design is adopted, the first docking seam H will be missing, affecting the sealing effect of the device.)

[0059] Further, the docking groove 201a is arranged in a ring shape. Therefore, the docking ring 202a is also correspondingly arranged in a ring shape. When the docking ring 202a is inserted into the docking groove 201a, as Figure 7 shown, due to the ring-shaped setting of the docking ring 202a, a ring-shaped 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 arranged in an arc shape, (refer to Figure 9 ) an end face V will be formed on the end face of the over-travel separation female head 201, 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.)

[0060] Further, 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 ).)

[0061] Further, 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 communicated, the over-travel separation female head 201 and the over-travel separation male head 202 cannot be docked and inserted.)

[0062] An end face U is formed between the over-travel separation female head 201 and the docking groove 201a.)

[0063] The over-travel separation female head 201 has an axial sealing ring 203 on its inner circumferential surface, located between the adjusting portion 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 water-tight manner.)

[0064] Further, 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.)

[0065] Further, the axial sealing ring 203 is located between the adjusting part 302 and the end face U, blocking the water seeping out from 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 from the end face sealing ring 204 will flow out through the adjusting part 302, affecting the sealing effect of the device.

[0066] Further, (refer to Figure 7 ) A chamfer M is provided at 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 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.

[0067] The overload separation male head 201 has an end face sealing ring 204 at the end face U of the overload separation male head 201. The end face sealing ring 204 is used to install the docking ring 202a in the docking groove 201a in a watertight manner. Among them, an installation groove is provided at the end face U of the overload separation male 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 elastic force, so as to ensure the sealing of the first docking seam H.

[0068] Further, 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 overload separation male head 201 and the overload separation female 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 overload separation male head 201 and the overload separation female head 202.

[0069] Further, the docking ring 202a extends axially on the overload separation female 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.

[0070] The overload separation male head 201 has a stabilizing ring 205 on the outer peripheral surfaces of the overload separation male head 201 and the overload separation female head 202, extending circumferentially on the overload separation male head 201 and the overload separation female head 202. The stabilizing ring 205 extends throughout the entire circumference of the overload separation male head 201 and the overload separation female head 202, and the stabilizing ring 205 is used to make the connection of the clean and sewage pipe 101 more stable.

[0071] Further, (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 section of the stabilizing ring 205 is a right triangle, the inclined surface of the stabilizing ring 205 facilitates the insertion of the sewage cleaning pipe 101, and the vertical surface makes the stabilizing ring 205 in a barbed shape, 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 ), 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.

[0072] The overload separation female head 201 has a mounting hole 301 that is open on the surface and has an internal thread, and the mounting hole 301 is used to mount the adjusting part 302.

[0073] Furthermore, in this embodiment, six mounting holes 301 are provided, and there is a 60-degree interval between them 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, so that 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 separating the overload separation female head 201 and the overload separation male head 202 is greater than F, the interface between the sewage cleaning pipe 101 and the aircraft will be damaged. Therefore, it is set that the locking force of the adjusting part 302 is less than F. When the locking force is relatively constant, the force for separating the overload separation female head 201 and the overload separation male head 202 must be less than F. When one or two adjusting parts 302 are provided, the force for separating the overload separation female head 201 and the overload separation male head 202 is unstable, and the force during separation is greater than the set force, resulting in the force during separation may be greater than F, thereby causing damage to the interface of the aircraft.

[0074] The adjusting part 302 includes an adjusting setscrew 302a, a spring 302b, and a steel ball 302c.

[0075] 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 cone, and the cone is used to extrude 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. The outer surface of the docking ring 202a is provided with a groove adapted to the steel ball 302c, and 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 of the overload separation female head 201 and the overload separation male head 202.

[0076] Further, the adjusting setscrew 302a is threadedly connected to the mounting hole 301. The cone at the end of the adjusting setscrew 302a is used to extrude the spring 302b, making the force of the extruded spring 302b more uniform. The spring 302b is slidably arranged in the mounting hole 301. The end of the spring 302b is fixedly connected to an extrusion seat adapted to the steel ball 302c. The extrusion 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. The outer surface of the docking ring 202a is provided with a groove adapted to the steel ball 302c, and 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 cause the steel ball 302c to contract, resulting in the device being unable to be used.

[0077] Next, based on Figure 12 an example of the connection structure of 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.

[0078] The aircraft clean and sewage truck carriage 401 is equipped with a clean and sewage pipe 101. The aircraft clean 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 uniformly transport it to the sewage treatment station for treatment. The aircraft clean water truck is an airport ground special vehicle dedicated to supplying clean water to the aircraft. The main function of this vehicle is to supplement drinking water for the aircraft for use by passengers and crew during the flight.

[0079] The aircraft storage tank 402 is the general term for the aircraft sewage tank and the aircraft fresh water tank.

[0080] 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 truck, 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 truck 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 truck away, the carriage 401 of the aircraft sewage and fresh water truck 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 force of the carriage 401 of the aircraft sewage and fresh water truck 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.

[0081] The remaining structure is the same as that of Embodiment 1.

[0082] Embodiment 3, refer 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. 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. 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.

[0083] 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.

[0084] Further, the upper elbow 102b is bent at 180 degrees, so that the orientation of the upper guide rod 102c is 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 spiral 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, so that the inner ends of the two steel rings 102a are in a closed state.

[0085] 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 of movement of the screw hole 103b 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 mutual separation of the upper elbow 102b and the connecting elbow 102f causes the two ends of the steel ring 102a to move away from each other, thereby tightening the steel ring 102a. The tightening of the 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.

[0086] The remaining structure is the same as that of Embodiment 2.

[0087] 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.

[0088] 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.

[0089] 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 within the scope of the claims of the present invention.

Claims

1. A method of using a water pipe protection and detachment mechanism for an aircraft sewage truck, characterized in that The water pipe protection and disengagement mechanism of the aircraft sewage truck includes a sewage pipe (101) for connecting the carriage (401) of the aircraft sewage truck to the aircraft storage tank (402); an overload disengagement female head (201) connected to the sewage pipe (101) for connecting the carriage (401) of the aircraft sewage truck; an overload disengagement male head (202) connected to the sewage pipe (101) for connecting the aircraft storage tank (402); an adjustment part (302) located on the overload disengagement female head (201) for connecting the overload disengagement female head (201) and the overload disengagement male head (202); The overload disengagement female head (201) has a mounting hole (301) with an internal thread on its surface for mounting the adjustment part (302); The adjustment part (302) includes an adjustment set screw (302a), a spring (302b), and a steel ball (302c); The surface of the adjustment set screw (302a) is provided with an external thread and is connected to the mounting hole (301). The end of the adjustment set screw (302a) is provided with a cone for more balanced extrusion of the spring (302b). The spring (302b) is located between the adjustment set screw (302a) and the steel ball (302c). The spring (302b) provides the elastic force required for the separation of the overload disengagement female head (201) and the overload disengagement male head (202). The steel ball (302c) is located in the mounting hole (301). The overload disengagement male head (202) has a docking ring (202a) with a groove on its outer surface adapted to the steel ball (302c). 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 of the overload disengagement female head (201) and the overload disengagement male head (202); The usage method includes fixing one end of the sewage pipe (101) to the carriage (401) of the aircraft sewage truck; fixing the other end of the sewage pipe (101) to the aircraft storage tank (402); before the aircraft sewage truck moves, the staff needs to manually separate the sewage pipe (101) from the aircraft storage tank (402) first; If the staff forgets to separate the sewage pipe (101) from the aircraft storage tank (402) and directly drives the aircraft sewage truck away, at this time, the sewage pipe (101) will be pulled by the carriage (401) of the aircraft sewage truck and the aircraft storage tank (402), and the overload disengagement female head (201) and the overload disengagement male head (202) will automatically separate, avoiding the vehicle directly pulling the interface between the sewage pipe (101) and the aircraft storage tank (402).

2. The usage method of the water pipe protection and detachment mechanism of the aircraft sewage truck according to claim 1, characterized in that: 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 arranged in a ring 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) 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).

3. The method for using the water pipe protection and detachment mechanism of the aircraft sewage truck according to claim 2, characterized in that: The docking ring (202a) is formed on the end face of the overload separation male head (202), 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). 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).

4. The method for using the water pipe protection and detachment mechanism of the aircraft clean and sewage truck according to claim 3, characterized in that: An end face (U) is formed between the overload separation female head (201) and the docking groove (201a); The overload 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 watertight manner.

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

6. The usage method of the water pipe protection and detachment mechanism 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) on the outer peripheral surfaces of the overload separation female head (201) and the overload separation male head (202), extending circumferentially on the overload separation female head (201) and the overload separation male head (202). The stabilizing ring (205) extends throughout 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 method of using the water pipe protection and detachment mechanism of the aircraft sewage truck according to claim 2, characterized in that: Also included is a clamp (102) that fixes the clean and sewage pipe (101) connected to the aircraft clean and sewage truck compartment (401) to the overload separation female head (201), and fixes the clean and sewage pipe (101) connected to the aircraft storage tank (402) to the overload separation male head (202); The clamp (102) includes a steel ring (102a) provided at the end of the clear and sewage 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). 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). 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).

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

9. The method for using the water pipe protection and detachment mechanism of the aircraft sewage truck according to claim 1, characterized in that: Also included is Bring 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) is on the same horizontal plane as the adjusting setscrew (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).

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