A connector for use in a cabin

Abstract

The present invention relates to the technical field of electrical connectors, and discloses a connector for use in a cabin, which includes a plug, a socket, and a connector, wherein the connector is used for sealing connection between the plug and the socket, a fixing plate is detachably installed in the housing of the socket, and there are two fixing plates, which are respectively located at the two ends of the glass-fired pin of the socket, and floating pins are arranged in both fixing plates, and the floating pins are detachably installed at the ends of the glass-fired pins through the fixing plates, and a mounting plate is detachably installed in the housing of the plug, and a floating socket is arranged in the mounting plate. The beneficial effect of the present invention is that the long glass-fired pin after passing through the wall is changed into a structure of A double-ended socket-short glass-fired pin-A double-ended pin, thereby ensuring the length of the pin, and the extended part of the pin, namely A double-ended socket and A double-ended pin, is fixed by the fixing plate, thereby ensuring its strength during use, and the solution of replacing the extended glass-fired body with the fixing plate reduces the production cost and manufacturing difficulty of the through-the-wall socket.

Description

Technical Field

[0001] The invention relates to the technical field of electric connectors, in particular to a connector used in a cabin. Background Art

[0002] Electrical connectors, as a very commonly used connection device used in the connection of electrical appliances and communication equipment, are related to the stability and reliability of the input and output of electrical and communication equipment signals. Electrical connectors include plugs and sockets. Usually, the plugs are connected to the cables, and the sockets are connected to the equipment to achieve electrical connection between the cables and the equipment.

[0003] The electrical connectors used in the cabin need to have sufficient explosion-proof distance due to the explosion-proof requirements. The socket needs to be installed through the wall, which lengthens the overall length of the socket and the length of the glass-fired pins. The diameter of the glass-fired pins is φ1.5. When they are lengthened, their strength is reduced, and they are prone to breakage during use, affecting the connection between electronic equipment. At the same time, due to the processing tolerance of the pins, the pins of the socket and the contact parts of the plug cannot be completely concentric, which can easily cause damage to the pins during use, resulting in unsatisfactory results. Summary of the invention

[0004] The object of the present invention is to provide a connector for use in a cabin to overcome the disadvantages of the prior art.

[0005] The objective of the present invention is achieved through the following technical solutions: A connector for use in a cabin, comprising a plug, a socket and a connecting piece, the connecting piece being used for sealing connection between the plug and the socket, the socket penetrating the wall of the cabin and being fixed, the number of the plugs being two and being located respectively on both sides of the wall, a fixing plate being detachably mounted in the housing of the socket, the number of the fixing plates being two and being located respectively at both ends of a glass-fired pin of the socket, a floating structure being arranged in both the fixing plates, the floating structures in the two fixing plates being used for installing a double-ended jack and a double-ended pin A respectively, the double-ended jack and the double-ended pin A being detachably mounted at the ends of the glass-fired pin through the fixing plate, a mounting plate being detachably mounted in the housing of the plug, the mounting plate being provided with the floating structure, the floating structures in the two mounting plates being used for installing a double-ended jack and a double-ended pin B respectively, the double-ended pin A being inserted into the double-ended jack of B, and the double-ended pin B being inserted into the double-ended jack of A.

[0006] Preferably, the floating structure includes a through hole and a gear sleeve, the through hole is integrally formed with an A boss, the gear sleeve is integrally formed with an elastic sheet, the A double-ended socket, the A double-ended pin, the B double-ended socket and the B double-ended pin are all composed of three sections, and the diameters of the three sections are all different, the diameter of the middle section of the A double-ended socket, the A double-ended pin, the B double-ended socket and the B double-ended pin is the smallest, the middle section of the A double-ended socket, the A double-ended pin, the B double-ended socket and the B double-ended pin is sleeved with the gear sleeve, and the A double-ended socket, the A double-ended pin, the B double-ended socket and the B double-ended pin are clamped on the corresponding A boss by the elastic sheet.

[0007] Preferably, a bend tube is detachably mounted on the shell of the plug, a tail straight tube is screwed on one end of the bend tube away from the shell of the plug, a shielding component is provided at the connecting section between the bend tube and the tail straight tube, the shielding component includes a shielding sleeve, a rotating cover and a steel ball, an F step is provided on the inner wall of the tail straight tube, the F step is used to axially prevent the shielding sleeve from falling off on the bend tube, an annular groove is provided on the end surface of the shielding sleeve, the rotating cover is axially prevented from falling off and is rotatably mounted on the outer periphery of the shielding sleeve, and the rotating cover is pressed on the steel ball located in the annular groove.

[0008] Preferably, a winged nut is screwed on one end of the tail straight pipe away from the bent pipe, a rubber sealing sleeve and a B gasket are arranged in the tail straight pipe, the rubber sealing sleeve is compressed and installed on the F step through the B gasket, and the B gasket is squeezed along its axial direction by screwing the winged nut.

[0009] Preferably, the end of the bent pipe away from the tail straight pipe is axially anti-slipped with a tail nut, and the tail nut is screwed on the shell of the plug. The tail nut is used to press the bent pipe tightly against the shell of the plug, and stop teeth are provided at the joint between the shell of the plug and the bent pipe, some of the stop teeth are located on the bent pipe, and the rest of the stop teeth are located on the shell of the plug.

[0010] Preferably, it also includes sealing grooves, some of which are opened on the shell of the plug, and the rest of the sealing grooves are opened on the bent pipe. A square sealing ring is installed in the sealing groove, and the square sealing ring is used to seal the joint between the bent pipe and the shell of the plug.

[0011] Preferably, the connecting member includes a connecting cap, and the connecting cap is rotatably mounted on the outer periphery of the plug shell in an axially anti-detachment manner, and an annular gap is provided between the inner wall of the connecting cap and the outer wall of the plug shell, and the socket shell is screwed into the annular gap.

[0012] Preferably, a C-shaped annular groove is formed on the outer wall of the shell of the plug, a second O-shaped sealing ring is installed in the C-shaped annular groove, and the second O-shaped sealing ring is used to seal the gap between the shell of the socket and the shell of the plug.

[0013] The present invention has the following advantages:

[0014] 1. The long glass-burned pin after penetrating the wall is changed to a structure of A double-ended socket-short glass-burned pin-A double-ended pin, which ensures the length of the pin. The extended part of the pin, namely the A double-ended socket and the A double-ended pin, is fixed by a fixing plate to ensure its strength during use. The solution of replacing the extended glass-burned body with a fixing plate reduces the production cost and manufacturing difficulty of the wall-penetrating socket.

[0015] 2. The pin / socket is installed in the through hole through a floating sleeve to form a movable space. When the connector is plugged in, after the pin head enters the socket, the non-concentric pins / sockets can be aligned in the movable space, so that the connection can be plugged in normally, thereby effectively ensuring the stability of the connection structure after plugging in. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] Figure 2 Schematic diagram of the socket structure Figure 1 ;

[0018] Figure 3 Schematic diagram of the socket structure Figure 2 ;

[0019] Figure 4 is a schematic diagram of the structure of the plug;

[0020] Figure 5 This is a schematic diagram of the installation structure of the elbow;

[0021] Figure 6 for Figure 1 A local enlarged schematic diagram of the middle A;

[0022] Figure 7 for Figure 2 A partial enlarged schematic diagram of point B in the middle;

[0023] Figure 8 for Figure 4 A partial enlarged schematic diagram of point C in the middle;

[0024] Fig. 9 Schematic diagram of the installation structure of the gear sleeve;

[0025] In the figure, 1-socket housing, 2-fixing plate, 3-glass burning pin, 4-A double-ended jack, 5-A double-ended pin, 6-plug housing, 7-mounting plate, 8-B double-ended jack, 9-B double-ended pin, 10-tooth sleeve, 11-A boss, 12-elastic sheet, 13-bend pipe, 14-tail straight pipe, 15-shielding pressing sleeve, 16-rotating cover, 17-steel ball, 18-F step, 19-winged nut, 20-rubber sealing sleeve, 21-B washer, 22-tail nut, 23-stop Teeth, 24-square sealing ring, 25-connecting cap, 26-first O-ring, 27-second O-ring, 28-A step, 29-A retaining ring, 30-B step, 31-C step, 32-B retaining ring, 33-A gasket, 34-D retaining ring, 35-wall, 36-flange, 37-third O-ring, 38-glass body, 39-socket cap, 40-rope, 41-clamping ring, 42-D step, 43-E step, 44-C retaining ring, 45-locking screw. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features of the embodiments may be combined with each other.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0030] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0031] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] like Figure 1-8As shown, a connector for use in a cabin includes a plug, a socket and a connecting piece, the connecting piece is used for sealing connection between the plug and the socket, the socket passes through the wall 35 of the cabin and is fixed, there are two plugs and they are respectively located on both sides of the wall 35, a fixing plate 2 is detachably installed in the housing 1 of the socket (an A step 28 is provided on the inner wall of the housing 1 of the socket, an A annular groove is provided on the inner wall of the housing of the socket near the A step 28, an A retaining ring 29 is installed in the A annular groove, the A retaining ring 29 is an earless retaining ring for a hole, and the A retaining ring 29 is used to fasten the fixing plate 2 to the A step 28, the structure is simple, and the disassembly and assembly are convenient, which is convenient for the replacement and maintenance of the pins / jacks. ), there are two fixing plates 2 and they are respectively located at the two ends of the glass-fired pin 3 of the socket (the middle part of the glass-fired pin 3 is fixed in the socket housing through the glass-fired body 38, preferably there are multiple glass-fired pins 3, and the multiple glass-fired pins 3 are divided into several groups, each group is distributed in a circle on the glass-fired body 38, and the circle formed by each group is concentric, and the glass-fired body 38 is a glass product made by glass sintering process, which has high temperature resistance and stable connection ability, so that it has a wide range of application prospects in high temperature environment), and floating structures are arranged in the two fixing plates 2. The floating structures in the two fixing plates 2 are used to install A double-ended socket 4 and A double-ended pin 5 respectively, and A double-ended socket 4 The A and A double-ended pins 5 are detachably mounted on the ends of the glass-fired pins 3 through the fixing plate 2, and a mounting plate 7 is detachably mounted in the housing 6 of the plug (a B step 30 is arranged on the outer wall of the mounting plate 7, a C step 31 is arranged on the inner wall of the housing 6 of the plug, and an A washer 33 is installed in the housing 6 of the plug, and the A washer 33 is used to press the B step 30 tightly against the C step 31, and a B annular groove is opened on the inner wall of the housing 6 of the plug, and a B retaining ring 32 is installed in the B annular groove, and the A washer 33 is stuck by the B retaining ring 32, which is convenient for disassembly and assembly, reduces the time for replacing the jack after it is damaged, improves the replacement efficiency, avoids the overall replacement, and reduces the plug Maintenance cost), a floating structure is provided in the mounting plate 7, and the floating structures in the two mounting plates 7 are respectively used to install the B double-ended jack 8 and the B double-ended pin 9, the A double-ended pin 5 is inserted into the B double-ended jack 8, and the B double-ended pin 9 is inserted into the A double-ended jack 4, and the long glass-burned pin 3 after passing through the wall is changed to the structure of A double-ended jack 4-short glass-burned pin 3-A double-ended pin 5, which ensures the length of the pin, and the extended part of the pin, namely the A double-ended jack 4 and the A double-ended pin 5, is fixed by the fixing plate 2, which ensures its strength during use, and the solution of replacing the extended glass-burned body with the fixing plate 2 reduces the production cost and manufacturing difficulty of the wall-penetrating socket.

[0033] In this embodiment, if Fig. 9As shown, the floating structure includes a through hole and a gear sleeve 10, a boss A 11 is integrally formed in the through hole, an elastic sheet 12 is integrally formed on the gear sleeve 10, the double-ended socket A 4, the double-ended pin A 5, the double-ended socket B 8 and the double-ended pin B 9 are composed of three sections, and the diameters of the three sections are different. The middle section of the double-ended socket A 4, the double-ended pin A 5, the double-ended socket B 8 and the double-ended pin B 9 has the smallest diameter, and the double-ended socket A 4, the double-ended pin A 5, the double-ended socket B 8 and the double-ended pin B 9 have the smallest diameter. The middle section of the pin 9 is sleeved with a toothed sleeve 10, and the A double-ended socket 4, the A double-ended pin 5, the B double-ended socket 8 and the B double-ended pin 9 are clamped on the corresponding A boss 11 through the elastic sheet 12. The pins / sockets are floatingly installed in the through hole through the toothed sleeve 10 to form a movable space. When the connectors are plugged in, after the pin heads enter the sockets, the non-concentric pins / sockets can be aligned in the movable space, so that the connection can be normally plugged in, thereby effectively ensuring the stability of the connection structure after plugging in.

[0034] In this embodiment, if Figure 1-8 As shown, a plug housing 6 is detachably mounted with an elbow 13, an end of the elbow 13 away from the plug housing 6 is screwed with a tail straight tube 14, a first O-ring 26 is arranged between the tail straight tube 14 and the elbow 13, a shielding member is arranged at the connecting section between the elbow 13 and the tail straight tube 14, the shielding member comprises a shielding sleeve 15, a rotating cover 16 and a steel ball 17, an F step 18 is arranged on the inner wall of the tail straight tube 14, the F step 18 is used to axially prevent the shielding sleeve 15 from slipping off on the elbow 13, an annular groove is provided on the end surface of the shielding sleeve 15, and the rotating cover 16 is axially anti-slippingly rotatably mounted on the outer periphery of the shielding sleeve 15 (the rotating cover 16 is connected to the shielding sleeve 15 by selecting a clamping ring 41, and the rotating cover 16 and the shielding sleeve 15 are connected by a clamping ring 41, and the rotating cover 16 and the shielding sleeve 15 are connected by a clamping ring 41. Both are provided with annular grooves. During installation, first use external force to open the clamping ring 41 and press it into the annular groove on the shielding sleeve 15, and then push the rotating cover 16 on the shielding sleeve 15 with force until the clamping ring 41 expands outward and enters the annular groove on the rotating cover 16, and the installation is completed). The rotating cover 16 is pressed on the steel ball 17 located in the annular groove. When the tail straight tube 14 is screwed to install the shielding component, the F step 18 presses against the rotating cover 16 to apply thrust and rotational force to it, thereby pushing it to rotate forward. The rotating cover 16 and the shielding sleeve 15 are rotationally connected through the steel ball 17, so the rotating cover 16 only applies thrust to the shielding sleeve 15, pushing it forward in the axial direction, thereby avoiding the rotation of the shielding sleeve 15 and causing the breakage of the shielding layer wire.

[0035] In this embodiment, if Figure 1-8As shown, a winged nut 19 is screwed on one end of the tail straight pipe 14 away from the bent pipe 13, and a rubber sealing sleeve 20 and a B gasket 21 are arranged in the tail straight pipe 14. The rubber sealing sleeve 20 is compressed and installed on the F step 18 through the B gasket 21. The winged nut 19 is screwed to make the B gasket 21 squeeze the rubber sealing sleeve 20 along its axial direction to avoid friction between the winged nut 19 and the B gasket 21 when it is rotated and pushed. The rubber sealing sleeve 20 is compressed by the B gasket 21 to avoid wear of the rubber sealing sleeve 20.

[0036] In this embodiment, if Figure 1-8 As shown, the end of the bent pipe 13 away from the tail straight pipe 14 is axially anti-slipped with a tail nut 22, and the tail nut 22 is screwed on the shell 6 of the plug (the tail nut 22 is axially anti-slipped and rotated on the outer periphery of the bent pipe 13 through the D retaining ring 34, refer to the installation of the rotating cover 16), and the tail nut 22 is used to press the bent pipe 13 tightly against the shell 6 of the plug. The joint between the shell 6 of the plug and the bent pipe 13 is provided with a stop tooth 23, some of the stop teeth 23 are located on the bent pipe 13, and the remaining stop teeth 23 are located on the shell 6 of the plug, which can ensure that the bent outlet is carried out in the direction required by the user to avoid subsequent rotation.

[0037] In this embodiment, if Figure 1-8 As shown, it also includes a sealing groove, part of which is opened on the shell 6 of the plug, and the remaining sealing grooves are opened on the elbow 13. A square sealing ring 24 is installed in the sealing groove, and the square sealing ring 24 is used to seal the joint between the elbow 13 and the shell 6 of the plug. The connecting piece includes a connecting cap 25, and the outer periphery of the shell 6 of the plug is axially anti-detached and rotatably installed with the connecting cap 25 (a D step 42 is provided on the inner wall of the connecting cap 25, and an E step 43 is provided on the outer wall of the shell 6 of the plug. A D annular groove is also provided on the outer wall of the shell 6 of the plug, and a C retaining ring 44 is installed in the D annular groove. The C retaining ring 44 is used to press the D step 42 against the E step 43), and an annular gap is provided between the inner wall of the connecting cap 25 and the outer wall of the shell 6 of the plug. The housing 1 of the socket is screwed into the annular gap, and a locking screw 45 is screwed on the connecting cap 25. The housing 1 of the socket is locked by the locking screw 45. When installing, first put the connecting cap 25 on the housing 6 of the plug, and make the D step 42 press against the E step 43, and then push the C retaining ring 44 on the housing 6 of the plug into the D annular groove. The installation is convenient and fast, and the locking is firm, which prevents the plug from loosening after being inserted into the socket, resulting in unstable signal transmission. A C annular groove is provided on the outer wall of the housing 6 of the plug, and a second O-ring 27 is installed in the C annular groove. The second O-ring 27 is used to seal the gap between the housing 1 of the socket and the housing 6 of the plug, so as to prevent water vapor from entering the interior of the connector housing and causing short circuit or pin corrosion.

[0038] In this embodiment, if Figure 1-8As shown, a flange 36 is fixed on the outer wall of the socket shell 1, and the flange 36 is used to fix the socket shell 1 on the wall 35. A B annular groove is opened on the flange, and a third O-ring 37 is installed in the B annular groove. The third O-ring 37 and the A double-ended pin 5 are both located on the same side of the flange. The third O-ring 37 prevents the gas inside the wall 35 from leaking or the gas outside the wall 35 from entering the inside of the wall 35 after the socket shell 1 passes through the wall.

[0039] In this embodiment, if Figure 1-8 As shown, a socket cap 39 is screwed on the port of the socket shell 1, and the socket cap 39 and the third O-ring 37 are respectively located on both sides of the flange 36. The socket cap 39 protects the socket when the socket is not connected to a plug to prevent the internal pins from being damaged or dust from entering the socket. The socket cap also includes a rope 40, which is used to connect the flange 36 and the socket cap 39, reducing the chance of the socket cap 39 being lost after being separated from the socket shell 1.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A connector for use in a cabin, comprising a plug, a socket and a connector, wherein the connector is used for sealing connection between the plug and the socket, the socket penetrates the wall of the cabin and is fixed, and the plugs are two and are respectively located on both sides of the wall, characterized in that: A fixing plate (2) is detachably mounted in the housing (1) of the socket. The fixing plates (2) are two and are respectively located at the two ends of the glass-fired pin (3) of the socket. A floating structure is provided in each of the two fixing plates (2). The floating structures in the two fixing plates (2) are respectively used to mount the A double-ended socket (4) and the A double-ended pin (5). The A double-ended socket (4) and the A double-ended pin (5) are both detachably mounted on the ends of the glass-fired pin (3) through the fixing plate (2). A mounting plate (7) is detachably mounted in the housing (6) of the plug. The mounting plate (7) is provided with the floating structure. The floating structures in the two mounting plates (7) are respectively used to mount the B double-ended socket (8) and the B double-ended pin (9). The A double-ended pin (5) is inserted into the B double-ended socket (8), and the B double-ended pin (9) is inserted into the A double-ended socket (4). The floating structure comprises a through hole and a gear sleeve (10), wherein an A boss (11) is integrally formed in the through hole, an elastic sheet (12) is integrally formed on the gear sleeve (10), the A double-ended jack (4), the A double-ended pin (5), the B double-ended jack (8) and the B double-ended pin (9) are all composed of three sections, and the diameters of the three sections are all different, and the A double-ended jack (4), the A double-ended pin (5), the B double-ended jack (8 ... The diameter of the middle section of the B double-ended pin (9) is the smallest; the A double-ended socket (4), the A double-ended pin (5), the B double-ended socket (8) and the middle section of the B double-ended pin (9) are sleeved with the tooth sleeve (10); the A double-ended socket (4), the A double-ended pin (5), the B double-ended socket (8) and the B double-ended pin (9) are clamped on the corresponding A boss (11) through the elastic sheet (12).

2. A connector for use in a cabin according to claim 1, characterized in that: A curved tube (13) is detachably mounted on a shell (6) of the plug, and a tail straight tube (14) is screwed on one end of the curved tube (13) away from the shell (6) of the plug. A shielding component is provided at the connecting section between the curved tube (13) and the tail straight tube (14), and the shielding component comprises a shielding sleeve (15), a rotating cover (16) and a steel ball (17). An F step (18) is provided on the inner wall of the tail straight tube (14), and the F step (18) is used to axially prevent the shielding sleeve (15) from slipping off on the curved tube (13). An annular groove is provided on the end surface of the shielding sleeve (15), and the rotating cover (16) is rotatably mounted on the outer periphery of the shielding sleeve (15) in an axially anti-slipping manner, and the rotating cover (16) is pressed on the steel ball (17) located in the annular groove.

3. A connector for use in a cabin according to claim 2, characterized in that: A winged nut (19) is screwed onto one end of the tail straight pipe (14) away from the bent pipe (13); a rubber sealing sleeve (20) and a B gasket (21) are arranged inside the tail straight pipe (14); the rubber sealing sleeve (20) is compressed and installed on the F step (18) through the B gasket (21); and the B gasket (21) is pressed against the rubber sealing sleeve (20) along its axial direction by screwing the winged nut (19).

4. A connector for use in a cabin according to claim 2, characterized in that: The end of the bent pipe (13) away from the tail straight pipe (14) is axially anti-slipped with a tail nut (22), and the tail nut (22) is screwed on the shell (6) of the plug. The tail nut (22) is used to press the bent pipe (13) against the shell (6) of the plug. The joint between the shell (6) of the plug and the bent pipe (13) is provided with a stop tooth (23), part of the stop tooth (23) is located on the bent pipe (13), and the rest of the stop tooth (23) is located on the shell (6) of the plug.

5. A connector for use in a cabin according to claim 2, characterized in that: It also includes sealing grooves, some of which are opened on the shell (6) of the plug, and the rest of the sealing grooves are opened on the bent pipe (13), and a square sealing ring (24) is installed in the sealing groove, and the square sealing ring (24) is used to seal the joint between the bent pipe (13) and the shell (6) of the plug.

6. A connector for use in a cabin according to claim 1, characterized in that: The connecting piece comprises a connecting cap (25), the connecting cap (25) is rotatably mounted on the outer periphery of the plug housing (6) in an axially anti-detachable manner, an annular gap is provided between the inner wall of the connecting cap (25) and the outer wall of the plug housing (6), and the socket housing (1) is screwed into the annular gap.

7. A connector for use in a cabin according to claim 6, characterized in that: A C-shaped annular groove is provided on the outer wall of the plug housing (6), a second O-shaped sealing ring (27) is installed in the C-shaped annular groove, and the second O-shaped sealing ring (27) is used to seal the gap between the socket housing (1) and the plug housing (6).

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