CN112478204A

CN112478204A - Urine derivation system in emergent pressure suit in cabin

Info

Publication number: CN112478204A
Application number: CN202011349293.6A
Authority: CN
Inventors: 李西园; 王晶; 方明元; 毕研强; 范超; 赵越阳; 郭子寅; 梁硕
Original assignee: Beijing Institute of Spacecraft Environment Engineering
Current assignee: Beijing Institute of Spacecraft Environment Engineering
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-03-12

Abstract

The application provides a urine guiding system in an emergency pressure suit in an cabin, which comprises a wearable urine collector, a four-way reversing valve and a urine container, wherein the wearable urine collector is arranged in the pressure suit and is connected with a human body; the wearable urine collector is communicated with the pressure suit through a first pipeline and is connected to a four-way reversing valve through a second pipeline, and the four-way reversing valve is provided with four ports; the two ends of the urine container are respectively connected with a third pipeline and a fourth pipeline, and the third pipeline and the fourth pipeline are respectively connected to a four-way reversing valve; one port of the four-way reversing valve is connected with one end of a fifth pipeline, and the other end of the fifth pipeline is connected to a urine discharge port of the spacecraft cabin wall; an elastic separation membrane is arranged in the urine container, and a first cavity and a second cavity are respectively arranged on two sides of the urine container corresponding to the elastic separation membrane. The beneficial effect of this application is: the pressure difference is used for discharging the urine in the urine container out of the spacecraft, the safety and the reliability are realized, the structure is simple, and the long-term life guarantee requirement of the astronaut in the lunar-landing task decompression environment can be met.

Description

Urine derivation system in emergent pressure suit in cabin

Technical Field

The disclosure relates to the technical field of manned spaceflight, in particular to a system for guiding urine out of a spacesuit and discharging the urine out of a cabin in the process of long-term wearing of the spacesuit and ensuring life after decompression in a lunar landing task.

Background

In a manned space mission, an in-cabin emergency pressure suit is also called as an in-cabin space suit or a launching and returning suit and is one of important means for guaranteeing the life safety of a spacecraft, the emergency pressure suit is required to be worn by the spacecraft in a launching section and a returning section of the spacecraft, an in-cabin environment-friendly life protection system ventilates the interior of the emergency pressure suit through an air supply pipeline so as to take away metabolic heat on the body surface of the spacecraft, the emergency pressure suit is gradually switched to a closed working mode along with the pressure reduction when serious accidents such as pressure loss and the like occur in the cabin, the in-cabin environment-friendly life protection system supplies oxygen to the helmet part of the spacecraft, and the breathing and partial heat dissipation requirements of the spacecraft are met. When the spacecraft is in orbit decompression, a spacecraft can generally wear the emergency pressure suit within 1h to complete the state setting of the spacecraft and carry out autonomous return flight. In the past manned space mission, the time of the launching section and the returning section is short, even if the orbit is in a decompression accident, the total time of the astronauts wearing the emergency pressure suit is not long, and the astronauts can return to the ground only after enduring short time. However, for future manned deep space exploration and long-term residence tasks represented by manned lunar landing, if the spacecraft has serious faults such as voltage loss, the spacecraft can return to the ground for a week. At the moment, how to solve the problem of urination of the astronaut in the emergency pressure suit in the cabin is one of the problems which need to be solved in the future manned lunar landing task.

In the design of the existing manned spacecraft, most space toilets can only be used when the pressure in the cabin is normal, and have no use condition under the pressure emergency state, but can only be used for emergency by arranging an absorption device in the space suit, and cannot be discharged out of the space suit; in the process of taking out the cabin, due to the short time, a scheme of temporary absorption and storage (such as diaper) is also generally adopted.

In the Apollo project, because the problem of long-term life protection is faced with, two designs of storage and discharge are adopted, the storage mainly depends on a urine bag inside the space suit, 1L of liquid can be contained, the discharge mainly depends on an interface on the spacecraft, and the urine is pumped out through vacuum.

Therefore, the design and the invention of the system for guiding the urine out of the space suit and discharging the urine out of the space suit have positive practical significance in the long-term wearing process of the space suit by the astronauts.

Disclosure of Invention

The invention aims to solve the technical problem that when the spacecraft is in a pressure emergency state due to pressure loss, the problem of urine collection and discharge in the process of long-term life and security of the astronaut wearing the emergency pressure suit is solved, and the invention has the characteristics of sanitation, reliability and safety and provides support for the manned deep space exploration task represented by manned lunar landing in the future.

In order to solve the problems, the technical scheme adopted by the invention is as follows:

in a first aspect, the application provides a system for guiding out urine in an emergency pressure suit in an cabin, which comprises a wearable urine collector, a four-way reversing valve and a urine container, wherein the wearable urine collector is arranged in the emergency pressure suit in the cabin, is connected with a human body and is used for collecting urine of the human body; the wearable urine collector is provided with a first pipeline, the first pipeline is used for guiding out urine in the wearable urine collector, the emergency pressure suit in the cabin is provided with a first quick-connection plug penetrating through the inner side and the outer side of the emergency pressure suit, the end part of the first pipeline is connected to one end of the first quick-connection plug, and the other end of the first quick-connection plug is connected with a second pipeline; the four-way reversing valve comprises a first port, a second port, a third port and a fourth port, the four ports are communicated in pairs, and the state of the communicated ports can be switched by switching the four-way reversing valve; one end of the second pipeline, which is far away from the first quick-connection plug, is connected to the first port; two ends of the urine container are respectively connected with a third pipeline and a fourth pipeline, one end of the third pipeline, far away from the urine container, is connected with the third port, and one end of the fourth pipeline, far away from the urine container, is connected with the fourth port; the second port is connected with a fifth pipeline, and one end of the fifth pipeline, which is far away from the urine container, is connected to a urine discharge port on the spacecraft cabin wall; an elastic separation membrane is arranged in the urine container, a first cavity and a second cavity are respectively arranged on two sides of the urine container corresponding to the elastic separation membrane, the third pipeline is communicated with the first cavity, and the fourth pipeline is communicated with the second cavity.

According to the technical scheme that this application embodiment provided, wearing formula urine collector surface is equipped with rather than the inside flexible collection interface that communicates.

According to the technical scheme that this application embodiment provided, the one end setting of first pipeline is inside wearing formula urine collector, and the other end extends to wearing formula urine collector outside and with first quick connector intercommunication.

According to the technical scheme provided by the embodiment of the application, one end, far away from the four-way reversing valve, of the fifth pipeline is connected with a second quick-connection plug, the inner side of the spacecraft is provided with a safety valve corresponding to the position of the urine outlet on the bulkhead, the second quick-connection plug is connected with a third quick-connection plug, and the third quick-connection plug is communicated with the safety valve.

According to the technical scheme provided by the embodiment of the application, the end part of the first pipeline is provided with a fourth quick-connection plug connected with the first quick-connection plug, and the end part of the second pipeline is provided with a fifth quick-connection plug connected with the first quick-connection plug.

According to the technical scheme provided by the embodiment of the application, the first cavity and the second cavity are arranged oppositely, one end of the first cavity is provided with a first interface communicated with a third pipeline, the other end of the first cavity is arranged to be an open structure, one end of the second cavity is provided with a second interface communicated with a fourth pipeline, the other end of the second cavity is arranged to be an open structure, one side of the first cavity corresponding to the open structure is provided with a first butt flange, one side of the second cavity corresponding to the open structure is provided with a second butt flange, the first butt flange and the second butt flange are arranged oppositely, the elastic separation film is arranged between the first butt flange and the second butt flange, a plurality of pairs of connecting through holes are formed in the circumferential direction of the first butt flange and the second butt flange, and the first cavity and the second cavity are fixedly connected through fixing bolts penetrating through the connecting through holes.

According to the technical scheme provided by the embodiment of the application, the first butt joint flange surface is provided with a circle of sealing strip, and the second butt joint flange surface is provided with a circle of sealing strip.

According to the technical scheme provided by the embodiment of the application, the first pipeline, the second pipeline, the third pipeline, the fourth pipeline and the fifth pipeline are all arranged to be transparent hoses.

According to the technical scheme provided by the embodiment of the application, the thickness range of the elastic separation membrane is 0.4mm-1 mm.

According to the technical scheme provided by the embodiment of the application, the safety valve is set to be a normally closed time delay valve.

The invention has the beneficial effects that: the urine container is divided into a first cavity and a second cavity which are independent, when the first cavity is used for collecting urine discharged by the wearable urine collector, the urine in the second cavity is discharged out of the spaceflight cabin through a urine discharge port of the cabin wall; after the four-way reversing valve is switched, urine in the first cavity for collecting urine is discharged from the spaceflight cabin, and the second cavity is used for collecting urine discharged by the wearable urine collector, so that the first cavity and the second cavity are alternately collected and discharged. The urine is discharged out of the spacecraft through the pressure difference, compared with the scheme of absorption and storage in the common space suit at present, the urine absorption and storage device has the advantages of comfort and sanitation, and meanwhile, the urine absorption and storage device is safe, reliable and simple in structure, and can meet the long-term life guarantee requirements of future astronauts.

Drawings

FIG. 1 is a schematic structural diagram of a first embodiment of the present application;

FIG. 2 is a schematic view of a first embodiment of the present application showing the construction of a urine receptacle;

FIG. 3 is a schematic diagram of the operation of the first and second chambers of the urine receptacle according to the first embodiment of the present disclosure;

the text labels in the figures are represented as: 101. a wearable urine collector; 102. a collection interface; 104. a first pipeline; 105. a fourth quick connect plug; 106. an emergency pressure suit interface; 107. a first quick connect plug; 201. a fifth quick-connect plug; 202. a second pipeline; 203. a four-way reversing valve; 203-1, a first port; 203-2, a second port; 203-3, a third port; 203-4, a fourth port; 204. a second quick connect plug; 205. a fifth pipeline; 206. a fourth pipeline; 207. a third pipeline; 301. a spacecraft bulkhead; 302. a urine outlet; 303. a safety valve; 304. a third quick connect plug; 400. a urine receptacle; 401. a first cavity; 401-1, a first interface; 401-2, a first docking flange; 402. a second cavity; 402-1, a second interface; 402-2, a second docking flange; 402-3, sealing strips; 403. an elastic separation film; 404. fixing the bolt; 405. a nut; 501. urine left over from the last use of the urine container; 502. the urine flowing into the urine container is used at this time; 503. urine flowing into the urine container after the four-way reversing valve is switched.

Detailed Description

In order that those skilled in the art will better understand the technical solutions of the present invention, the following detailed description of the present invention is provided in conjunction with the accompanying drawings, and the description of the present section is only exemplary and explanatory, and should not be construed as limiting the scope of the present invention in any way.

Fig. 1 to fig. 3 are schematic diagrams of a first embodiment of the present application, which includes a wearable urine collector 101, a four-way reversing valve 203, and a urine container 400, wherein the wearable urine collector 101 is disposed in an emergency pressure suit in a cabin, and is connected to a human body for collecting urine from the human body. The wearable urine collector 101 is wearable, made of skin-friendly material, worn around the waist by astronauts, manufactured, and worn inside the emergency pressure suit.

Be equipped with first pipeline 104 on wearing formula urine collector 101, first pipeline 104 is used for deriving the urine in wearing formula urine collector 101, be equipped with the first quick connector 107 that runs through the inboard and outside of emergent pressure suit on the emergent pressure suit in the cabin, the end connection of first pipeline 104 is in the one end of first quick connector 107, and the other end of first quick connector 107 is connected with second pipeline 202. The first pipeline 104 is used for guiding urine in the wearable urine collector 101 out of the wearable urine collector 101, passing through the emergency pressure suit, and then transmitting the urine to the four-way reversing valve 203 through the second pipeline 202.

In this embodiment, the surface of the wearable urine collector 101 is provided with a flexible collection interface 102 communicated with the inside thereof. In this embodiment, the flexible collecting interface 102 is driven by the negative pressure in the wearable urine collector 101 to collect the urine of the human body, and the specific form of the flexible collecting interface 102 includes a latex casing, a latex dish, and the like.

In this embodiment, one end of the first pipeline 104 is disposed inside the wearable urine collector 101, and the other end extends to the outside of the wearable urine collector 101 and communicates with the first quick connector 107.

Preferably, the end of the first pipeline 104 is provided with a fourth quick connector 105 connected with the first quick connector 107, and the end of the second pipeline 202 is provided with a fifth quick connector 201 connected with the first quick connector 107.

In this embodiment, the first quick-connect plug 107 is configured as a two-end open-close structure, and the first pipeline 104 and the second pipeline 202 are connected to the first quick-connect plug 107 through the fourth quick-connect plug 105 and the fifth quick-connect plug 201, respectively, for quick connection and disconnection of the system, thereby ensuring the air tightness of the system. After the wearable urine collector 101 is worn, the fourth quick-connection plug 105 is in butt joint with the first quick-connection plug 107 with two open-close ends fixed on the emergency pressure suit in the cabin, so that liquid transmission is realized; 106 is an emergency pressure suit interface in the cabin, namely the surface of an aerospace suit in the cabin, and a first quick-connection plug 107 with two open-close ends is fixed on the surface of the emergency pressure suit; the first quick-connection plug 107 is a two-end opening and closing type quick-connection plug fixed on the emergency pressure suit in the cabin, and in a general life and insurance state, the fifth quick-connection plug 201 is not connected, so that the air tightness of the emergency pressure suit in the cabin is ensured, when a astronaut needs to urinate, after the fifth quick-connection plug 201 is in butt joint with the two-end opening and closing type first quick-connection plug 107, an internal urine channel is communicated, and the operation can be started.

The four-way reversing valve 203 comprises a first port 203-1, a second port 203-2, a third port 203-3 and a fourth port 203-4, the four ports are communicated in pairs, and the four-way reversing valve 203 can switch the states of the communicated ports; the end of the second pipeline 202 far away from the first quick connector 107 is connected to the first port 203-1; the two ends of the urine container 400 are respectively connected with a third pipeline 207 and a fourth pipeline 206, one end of the third pipeline 207, which is far away from the urine container 400, is connected to the third port 203-3, and one end of the fourth pipeline 206, which is far away from the urine container 400, is connected to the fourth port 203-4; a fifth pipeline 205 is connected to the second port 203-2, and one end of the fifth pipeline 205, which is far away from the urine container 400, is connected to a urine outlet 302 on a spacecraft cabin wall 301; an elastic separating membrane 403 is arranged in the urine container 400, a first cavity 401 and a second cavity 402 are respectively arranged on two sides of the urine container 400 corresponding to the elastic separating membrane 403, the third pipeline 207 is communicated with the first cavity 401, and the fourth pipeline 206 is communicated with the second cavity 402.

In this embodiment, the urine container 400 includes two independent cavities, a first cavity 401 and a second cavity 402, the first cavity 401 and the second cavity 402 are separated by the elastic separating membrane 403, one cavity is used for containing the urine transmitted by the wearable urine collector 101, and the other cavity is communicated with the urine outlet 302 on the spacecraft cabin wall 301, which is communicated with the external environment, so as to discharge the urine in the cavity out of the spacecraft; after the four-way reversing valve 203 is switched, the working states of the two cavities are switched, the cavity which contains the urine transmitted by the wearable urine collector 101 before is communicated with the urine outlet 302 to discharge the urine out of the spacecraft, and the other cavity which is used for emptying the urine is communicated with the wearable urine collector 101 to contain the urine discharged by the wearable urine collector 101. Therefore, the four-way reversing valve 203 in this embodiment is used to provide urine circuit switching, and can control the switching of the emptying or collecting working state of each cavity of the urine container 400.

In this embodiment, when the first port 203-1 of the four-way reversing valve 203 is connected to the fourth port 203-4, that is, the second pipeline 202 is connected to the fourth pipeline 206, the second port 203-2 of the four-way reversing valve 203 is connected to the third port 203-3, that is, the third pipeline 207 is connected to the fifth pipeline 205, at this time, the second chamber 402 of the urine container 400 is connected to the wearable urine collector 101, the first chamber 401 is connected to the environment outside the cabin through the urine outlet 302 on the cabin wall, that is, the first chamber 401 is in the exhaust stage at this time, the second chamber 402 is in the collection stage, and the urine discharged from the first chamber 401 is collected when the wearable urine collector 101 is connected to the last cycle. When the urine in the first chamber 401 is emptied, the four-way reversing valve 203 is manually switched, so that the first port 203-1 is communicated with the third port 203-3, that is, the second pipeline 202 is communicated with the third pipeline 207, and the second port 203-2 is communicated with the fourth port 203-4, that is, the fourth pipeline 206 is communicated with the fifth pipeline 205, at this time, the first chamber 401 is switched to be communicated with the wearable urine collector 101 for collecting the urine discharged from the wearable urine collector 101, and the second chamber 402 is communicated with the urine discharge port 302 on the bulkhead, so that the urine collected in the last cycle in the second chamber 402 is discharged out of the cabin.

In this embodiment, by adopting the scheme that the two cavities work alternately and the working states of the cavities are switched by the four-way reversing valve 203, the direct communication between the export system and the extravehicular vacuum environment can be avoided, and the risk of system failure is reduced.

In this embodiment, the elastic separating membrane 403 is preferably made of polymer material such as latex, etc., and has a thickness of 0.4mm to 1mm, and when there is a pressure difference between two sides of the urine container 400, the elastic separating membrane 403 can deflect towards the cavity of one side.

In a preferred embodiment, one end of the fifth pipeline 205, which is far away from the four-way reversing valve 203, is connected with a second quick-connection plug 204, a safety valve 303 is arranged on the inner side of the spacecraft, corresponding to the position of the urine outlet 302 on the bulkhead, a third quick-connection plug 304 is connected to the second quick-connection plug 204, and the third quick-connection plug 304 is communicated with the safety valve 303. In the preferred embodiment, the safety valve 303 is used to ensure the reliability of the system, and is automatically disconnected when no personnel operate, and the urine discharge hole on the spacecraft cabin is used to discharge urine out of the spacecraft. The system realizes the discharge of urine to the outside of the spacecraft through pressure difference, and can meet the long-time life and health protection requirements. In the preferred embodiment, the third quick connect plug 304 is provided with a two-end open/close structure.

Preferably, the safety valve 303 is provided as a normally closed time-delay valve. In the preferred embodiment, only the astronaut opens the valve when urinating, and then the valve can be automatically closed for a period of time, so that the system is prevented from being connected with vacuum for a long time in unexpected situations (such as the situation that operators lose consciousness), the possibility of danger of the system is reduced, and the reliability of the system in abnormal situations is guaranteed.

In a preferred embodiment, the first cavity 401 and the second cavity 402 are disposed opposite to each other, and preferably, the first cavity 401 and the second cavity 402 are formed in a hemispherical shape, are made of polycarbonate, and have a carrying capacity of 0.5 atmosphere or more. One end of the first cavity 401 is provided with a first interface 401-1 communicated with the third pipeline 207, the other end is provided with an opening structure, one end of the second cavity 402 is provided with a second interface 402-1 communicated with the fourth pipeline 206, the other end is provided with an opening structure, one side of the first cavity 401 corresponding to the opening structure is provided with a first butt flange 401-2, one side of the second cavity 402 corresponding to the opening structure is provided with a second butt flange 402-2, the first butt flange 401-2 and the second butt flange 402-2 are oppositely arranged, the elastic separation membrane 403 is arranged between the first butt flange 401-2 and the second butt flange 402-2, a plurality of pairs of connecting through holes are circumferentially arranged on the first butt flange 401-2 and the second butt flange 402-2, and the first cavity 401 and the second cavity 402 are fixedly connected through fixing bolts 404 penetrating through the connecting through holes.

In the preferred embodiment, the fixing bolt 404 is used as 404, the nut is used as 405, the first cavity 401 and the second cavity 402 on two sides can be locked together through the fixing bolt and the nut, the elastic separation membrane 403 is pressed tightly, and the combination of an M5 stainless steel bolt and a copper nut can be selected. In the preferred embodiment, the diameter of the connecting through-hole is 6 mm.

Preferably, the surface of the first butting flange 401-2 is provided with a ring of sealing strips 402-3, and the surface of the second butting flange 402-2 is provided with a ring of sealing strips 402-3. The sealing strip 402-3 is arranged to ensure the sealing performance when the first cavity 401 is in butt joint with the second cavity 402.

Preferably, the first pipe 104, the second pipe 202, the third pipe 207, the fourth pipe 206 and the fifth pipe 205 in this embodiment are all transparent hoses. Set up each urine transmission pipeline into transparent hose in this embodiment, can provide visual interface for the astronaut for supply the astronaut to observe the flow direction of the inside liquid of pipeline. In this embodiment, the transparent flexible pipe of each pipeline may be made of polymer materials such as polyethylene, polyvinyl chloride, and the like. Preferably, in the embodiment, a 3-minute hose (with an outer diameter of 9.525mm) made of transparent polytetrafluoroethylene is adopted for each pipeline.

In the embodiment, 101-107 are positioned in the emergency pressure suit in the cabin of each astronaut and belong to personal components; 201-207 are located inside the spacecraft cabin, belong to the public subassembly, and the astronaut can use in proper order.

Fig. 3 shows the change of the inside of the urine container in the actual use process, wherein 501 is the urine left by using the urine container last time, 502 is the urine flowing into the urine container this time, 503 is the urine flowing into the urine container after switching the four-way reversing valve, and the steps are as follows:

s1: at the beginning, the first cavity of the urine container at the left side in the figure is empty (communicated with the urine outlet in the last urination process), the second cavity at the right side in the figure is a mixture of urine and air (leaked from the space suit into the cavity) (the wearable urine collector in the last urination process) as shown in the figure 501, and the elastic separation membrane is deflected to one side of the first cavity;

s2: in a pressure loss accident, when a spacecraft has a urine discharge requirement, after the spacecraft is connected with each pipeline, the four-way reversing valve is rotated, the safety valve is opened, the second cavity is communicated with the urine discharge port, and the urine 501 is discharged into the external vacuum environment of the spacecraft through the fifth pipeline; meanwhile, the first cavity is communicated with the wearable urine collector, so that urine 502 in the wearable urine collector flows into the first cavity, and the elastic separation membrane starts to move towards the direction of the second cavity;

s3: the urine 501 in the second cavity is gradually discharged until the second cavity is emptied, the urine 502 in the first cavity continuously flows in, so that the first cavity is gradually filled with the urine and the leaked air, and the elastic separation membrane moves towards the second cavity and gradually reaches the limit position;

s4: the astronaut pulls the four-way reversing valve, and the connection relation of each port in the four-way reversing valve is exchanged, so that the first cavity is communicated with the urine outlet of the cabin wall, the second cavity is communicated with the wearable urine collector, the urine 502 in the first cavity is continuously discharged out of the vacuum environment outside the cabin, meanwhile, the urine 503 in the wearable urine collector gradually flows into the second cavity, and the elastic separation membrane gradually moves towards the first cavity.

The above steps S1-S4 can realize one-time switching of the working modes of the first chamber and the second chamber, and the four-way selector valve is switched to make the first chamber and the second chamber work in different working states alternately according to actual conditions.

The principles and embodiments of the present application are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present application, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments, or may be learned by practice of the invention.

Claims

1. A urine guiding system in an emergency pressure suit in a cabin is characterized by comprising a wearable urine collector, a four-way reversing valve and a urine container, wherein the wearable urine collector is arranged in the emergency pressure suit in the cabin, is connected with a human body and is used for collecting urine of the human body;

the wearable urine collector is provided with a first pipeline, the first pipeline is used for guiding out urine in the wearable urine collector, the emergency pressure suit in the cabin is provided with a first quick-connection plug penetrating through the inner side and the outer side of the emergency pressure suit, the end part of the first pipeline is connected to one end of the first quick-connection plug, and the other end of the first quick-connection plug is connected with a second pipeline;

the four-way reversing valve comprises a first port, a second port, a third port and a fourth port, the four ports are communicated in pairs, and the state of the communicated ports can be switched by switching the four-way reversing valve; one end of the second pipeline, which is far away from the first quick-connection plug, is connected to the first port; two ends of the urine container are respectively connected with a third pipeline and a fourth pipeline, one end of the third pipeline, far away from the urine container, is connected with the third port, and one end of the fourth pipeline, far away from the urine container, is connected with the fourth port; the second port is connected with a fifth pipeline, and one end of the fifth pipeline, which is far away from the urine container, is connected to a urine discharge port on the spacecraft cabin wall;

an elastic separation membrane is arranged in the urine container, a first cavity and a second cavity are respectively arranged on two sides of the urine container corresponding to the elastic separation membrane, the third pipeline is communicated with the first cavity, and the fourth pipeline is communicated with the second cavity.

2. The intra-cabin emergency pressure suit urine channeling system according to claim 1, wherein the wearable urine collector surface is provided with a flexible collection port in communication with an interior thereof.

3. The intra-cabin emergency pressure suit urine derivation system of claim 1, wherein the first conduit is disposed within the wearable urine collector at one end and extends to an exterior of the wearable urine collector at another end and communicates with the first quick-connect plug.

4. The intra-cabin emergency pressure suit urine derivation system of claim 1, wherein a second quick-connect plug is connected to an end of the fifth pipeline remote from the four-way reversing valve, a safety valve is provided inside the spacecraft at a position corresponding to the urine outlet on the cabin wall, a third quick-connect plug is connected to the second quick-connect plug, and the third quick-connect plug is in communication with the safety valve.

5. The intra-cabin emergency pressure suit urine derivation system of claim 3, wherein the first pipeline has a fourth quick-connect plug at an end thereof for connection to the first quick-connect plug, and the second pipeline has a fifth quick-connect plug at an end thereof for connection to the first quick-connect plug.

6. The system for guiding out urine from an emergency pressure suit inside a cabin according to claim 1, wherein the first cavity and the second cavity are arranged in an opposite manner, one end of the first cavity is provided with a first port communicated with a third pipeline, the other end of the first cavity is provided with an open structure, one end of the second cavity is provided with a second port communicated with a fourth pipeline, the other end of the second cavity is provided with an open structure, one side of the first cavity corresponding to the open structure is provided with a first butt flange, one side of the second cavity corresponding to the open structure is provided with a second butt flange, the first butt flange and the second butt flange are arranged in an opposite manner, the elastic separation membrane is arranged between the first butt flange and the second butt flange, the first butt flange and the second butt flange are circumferentially provided with a plurality of pairs of connecting through holes, and the first cavity and the second cavity are fixedly connected through fixing bolts penetrating through the connecting through holes.

7. The intra-cabin emergency pressure suit urine channeling system according to claim 6, wherein the first docking flange is provided with a ring of sealing strips on a surface thereof, and the second docking flange is provided with a ring of sealing strips on a surface thereof.

8. The intra-cabin emergency pressure suit urine derivation system of claim 1, wherein the first, second, third, fourth, and fifth conduits are transparent hoses.

9. The intra-cabin emergency pressure suit urine voiding system of claim 1 wherein the thickness of the resilient separating membrane is in the range of 0.4mm to 1 mm.

10. The intra-cabin emergency pressure suit urine removal system of claim 4, wherein said safety valve is configured as a normally closed time delay valve.