Optical fiber connector, plug, socket, pin component and jack component

Abstract

The invention discloses an optical fiber connector and a plug, a socket, a pin component and a jack component thereof. The optical fiber connector comprises a flange plate I and a sleeve piece, a through cavity I is formed in the flange plate I along the central axis direction, the head end of the cavity I is used for accommodating and fixing the end part of a contact pin I, and the interior of the cavity I is blocked to realize sealing; a through cavity II is formed in the sleeve piece in the direction of the central axis, and an elastic piece is arranged in the cavity II; the tail end of the flange plate I penetrates through the elastic piece in the cavity II and extends outwards; the elastic piece is used for achieving axial floating of the flange plate I relative to the sleeve piece. The high-temperature-resistant and high-pressure-resistant sealed optical fiber connector can meet the requirements of a high-temperature and high-pressure environment in an inserted state and a separated state. The high-temperature and high-pressure sealing optical fiber connector is divided into a plug connector and a socket connector, the high-temperature and high-pressure environment requirement can be met in the plug-in state of the head and the socket, and the high-temperature and high-pressure environment requirement can be met when the head and the socket are separated.

Description

Technical Field

[0001] The invention belongs to the technical field of connectors, and in particular relates to an optical fiber connector and a plug, a socket, a pin component and a jack component thereof. Background Art

[0002] At present, data transmission in the field of oil well logging is carried out through electrical connectors, but when the capacity of the transmitted information is large or the transmission distance is long, there is a risk of delay or signal distortion in the signal transmission. With the development of well logging technology in the oil field, the increase in the depth of oil well logging and the increase in the amount of data in the process, the need to transmit the measurement data installed on various equipment modules downhole, including downhole temperature, vibration, flow and pressure data, to the surface equipment in a timely, efficient and accurate manner is becoming increasingly urgent. The downhole environment is usually a high temperature and high pressure or high pressure environment, which requires a high temperature and high pressure resistant optical fiber connector connection device that can achieve optical fiber alignment and insertion in a high temperature and high pressure environment for data transmission.

[0003] In the related prior art, as the drilling depth increases, the temperature will gradually increase (175°C), and there will be a large pressure difference between the layers underground (different drilling depths have different water pressure differences, and the current maximum pressure difference is 103MPa), but the high-temperature and high-pressure connectors that meet this type of demand are mostly concentrated on the connector head seat being sealed after plugging in to meet the requirements of high temperature and high pressure. If the optical fiber connector is installed at the equipment end, the connector is in a connected and sealed state before the equipment end is lowered into the well. When the operation is completed, the head seat needs to be separated. For example, one of the connector socket and the connector plug is left underground, and the other needs to be lifted up with it. At this time, the connector head seat needs to be separated, but the seal fails after the head seat is separated. Due to the high water pressure, external water can easily enter the inside of the logging equipment through the gap of the separated optical fiber connector plug or connector socket, which can easily cause the logging equipment connected to the tail of the connector to enter the inside of the equipment due to excessive external water pressure, causing damage to the equipment. Therefore, it is urgent to solve the technical problem that the connector can meet the environmental requirements of high temperature and high pressure even in a separated state. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the above-mentioned prior art and to provide an optical fiber connector and its plug, socket, pin component, and jack component. The high temperature and high pressure sealed optical fiber connector of the device can meet the requirements of high temperature and high pressure environment in both the plugged state and the separated state. The high temperature and high pressure sealed optical fiber connector is divided into a plug connector and a socket connector. Not only can it meet the requirements of high temperature and high pressure environment in the plugged state of the head and the socket, but also it can meet the requirements of high temperature and high pressure environment when the head and the socket are separated.

[0005] One of the objects of the present invention is to provide a pin component, comprising a flange I and a kit; the flange I is formed with a through cavity I along the central axis, the head end of the cavity I is used to accommodate the end of the pin I and fix it, and the interior of the cavity I is sealed; the kit is formed with a through cavity II along the central axis, the tail end of the flange I passes through the cavity II and extends to the outside of the cavity II, an elastic member is provided between the flange I and the kit, and the elastic member is used to achieve axial floating of the flange I relative to the kit.

[0006] As a preferred solution, the flange I is integrally formed; or, the flange I includes a sealing member located at the head end and a movable member located at the tail end, and the movable member is axially connected to the sealing member.

[0007] As a preferred solution, a limiting platform I is provided on the outer cylindrical surface of the flange I; a limiting platform II is formed inside the cavity II; one end of the elastic member abuts against the limiting platform I, and the other end abuts against the limiting platform II.

[0008] As a preferred solution, an annular groove I is formed on the outer cylindrical surface of the flange I in the circumferential direction, and a retaining ring is arranged in the annular groove I. The retaining ring abuts against one side of the rear end of the kit and is used as an axial floating support point of the flange I.

[0009] As a preferred solution, an annular groove II is further provided on the outer cylindrical surface of the flange I, a sealing member I is provided in the annular groove II, and the sealing member I is used to achieve sealing between the pin component and the outer shell of the plug.

[0010] As a preferred solution, the outer cylindrical surface of the flange I is further provided with a stop platform I, and the stop platform I cooperates with the head end surface of the kit to form a stop limit for the flange I along the first axial direction.

[0011] As a preferred solution, a positioning boss is formed on the outer circumference of the sleeve.

[0012] As a preferred solution, a glue pouring sleeve is fixed to the tail end of the flange I, and a glue pouring cavity is formed in the glue pouring sleeve; the glue pouring cavity is connected to the cavity I.

[0013] As a preferred solution, the head end face of the glue potting sleeve is formed with a through hole for the rear end of the flange I to penetrate, and the rear end of the flange I passes through the through hole and extends into the glue potting cavity to connect with the sealing colloid in the glue potting cavity.

[0014] As a preferred solution, a sealing groove is formed on one side of the head end of the perforation, and a sealing member II is arranged in the sealing groove.

[0015] As a preferred solution, a gasket is also provided on the tail end of the flange I, and the gasket is arranged between the rubber-filled sleeve and the retaining ring, and is used to block the port of the sealing groove to form a sealing cavity.

[0016] As a preferred solution, at least one annular groove is formed on the outer cylindrical surface of the rear end of the flange I extending into the glue pouring cavity, and the annular groove is used to connect with the sealing glue in the glue pouring cavity.

[0017] As a preferred solution, an annular groove III is provided on the outer cylindrical surface of the sealing member, the annular groove III corresponds to the inside and outside of the glass sintering area in the cavity I, and the annular groove III is used to place the sintered member.

[0018] As a preferred solution, at least one end of the glass sintering zone is provided with a ceramic support sleeve I, and the ceramic support sleeve I is used for heat insulation and protection of the optical fiber coating layer.

[0019] As a preferred embodiment, a glass tube I is provided in the glass sintering zone, a ceramic support sleeve I is provided, and the ceramic support sleeve I is located between the glass tube I and the pin I, or the glass tube I is located between the ceramic support sleeve I and the pin I.

[0020] As a preferred embodiment, a glass tube I is provided in the glass sintering area, and two ceramic support sleeves I are provided. The two ceramic support sleeves I are respectively located at both ends of the glass tube I, and the ceramic support sleeve I located at the head end of the glass tube I is arranged between the glass tube I and the pin I.

[0021] The second object of the present invention is to provide a socket component compatible with any one of the above-mentioned pin components, the socket component includes a flange II, the flange II has a cavity III formed along its central axis, the head end of the cavity III is used to accommodate the end of the pin II and fix it, the cavity III is sealed inside, and an annular groove IV is provided on the outer cylindrical surface of the flange II, the annular groove IV is used to install a seal III, and the seal III is used to achieve sealing between the socket component and the outer shell of the socket.

[0022] As a preferred solution, the cavity III is sealed by glue injection or glass sintering.

[0023] As a preferred solution, an annular groove VI is provided on the outer circumferential surface of the flange II, and the annular groove VI corresponds to the inside and outside of the glass sintering cavity in the cavity III.

[0024] As a preferred solution, it also includes a ceramic support sleeve II, which is arranged at at least one end of the glass sintering area in the cavity III, and is used for heat insulation and protection of the optical fiber coating layer.

[0025] A third object of the present invention is to provide a connector plug, comprising any one of the above-mentioned pin components.

[0026] As a preferred embodiment, it also includes a plug outer shell, and the pin component is fixed in the cavity IV of the plug outer shell; the pin component is sealed with the inner wall of the cavity IV through the sealing member I, and the plug-in end of the plug outer shell is provided with an annular groove V along its outer circumference, and the annular groove V is used to set the sealing member IV, and the sealing member IV is used to achieve the sealing between the connector plug and the inner cavity of the adapter connector socket.

[0027] As a preferred solution, the tail end of the pin component is crimped and fixed in the cavity IV by a crimping piece I, and the crimping piece I abuts against the tail end of the kit.

[0028] As a preferred solution, at least two annular grooves V are arranged along the outer circumference of the plug housing plug end.

[0029] A fourth object of the present invention is to provide a connector socket adapted to any one of the connector plugs described above, including any one of the socket components described above.

[0030] As a preferred embodiment, it also includes a socket outer shell, the jack component is fixed to the cavity V of the socket outer shell, and the sealing member III is used to achieve the sealing between the jack component and the cavity V; the tail end of the jack component is crimped and fixed in the cavity V by the crimping member II.

[0031] A fifth object of the present invention is to provide an optical fiber connector, comprising any one of the above-mentioned connector plugs and any one of the above-mentioned connector sockets.

[0032] Compared with the prior art, the present invention has at least the following beneficial effects: First, the pin component of this solution can achieve the axial floating function by its own structure through structural improvement, thereby ensuring the reliability of the pin connection. At the same time, the flange meets the sealing function through the internal sealing of the cavity (glue filling, glass sintering or welding, etc.). The structures of the pin component to achieve the axial floating function and the sealing function are independent of each other, and the sealing function will not be affected by the realization of the axial floating function. When the optical fiber connector head is connected or separated by this design, the pin component can meet the environmental requirements of high temperature and high pressure.

[0033] Secondly, this solution, by setting a retaining ring at the rear end of the flange I, the retaining ring can be used as a support point for the floating of the pin, which not only ensures the floating function of the pin component but also makes the pin component an independent component, which is convenient for the subsequent connector production and can effectively improve production efficiency. The pin axial floating function of the pin component in this solution does not need to rely on the structural coordination of the external shell, but only relies on the structure of the pin component itself to achieve the axial floating function, so that the pin component can form an independent component, which can be matched with the plug outer shell of different shapes and structures, so as to facilitate the production and sale of the pin component as an independent component.

[0034] Thirdly, in this scheme, the kit is arranged on the head end side of the glue-potting sleeve, and an elastic part is arranged in the kit, which is respectively abutted against the flange I and the kit through the elastic part, so as to meet the axial floating function. The above function is achieved by arranging the kit near the middle section of the flange I (that is, the kit is located on the head end side of the glue-potting sleeve), which can reduce the axial design size of the flange I and limit the maximum external size of the entire pin component.

[0035] Fourthly, in view of improving the effect of glue pouring sealing, this scheme performs a primary glue pouring in cavity I of flange I and a secondary glue pouring in the glue pouring sleeve, so that the secondary glue pouring in the glue pouring sleeve can re-seal the end of the sealing colloid of the primary glue pouring, and the cavity of flange I and the glue pouring cavity in the glue pouring sleeve form a connecting area. The double sealing effect of the two glue pourings can better meet the sealing requirements.

[0036] Fifth, in order to further ensure the sealing effect of the connection between flange plate I and the rubber potting sleeve, the head end connection of the rubber potting sleeve is also sealed by a gasket so that the head end sealing groove of the rubber potting sleeve forms a sealing cavity, and a sealing ring is provided in the sealing cavity to achieve a double sealing effect, thereby further improving the sealing ability of the product.

[0037] Sixth, in this scheme, considering the convenience of the production and processing technology of the components, the flange I can also be designed to be split. Through the axial connection between the movable part and the sealing part, the inner cavity of the sealing part adopts a glass sintering sealing method, and the outer shape of the movable part cooperates with the inner cavity of the kit to realize the axial floating function of the pin. With this design, the outer dimensions of a single component are reduced, and the processing difficulty of the component is effectively reduced.

[0038] Seventh, this solution adopts the glass sintering method with the pin facing downward, so that the end of the glass sintered body facing the pin is more flat, thereby making the sealing effect inside the flange cavity more reliable when pressure is applied from the direction of the pin.

[0039] Eighth, in this solution, the annular groove II on the outer cylindrical surface of the sealing component is arranged on the side of the annular groove III away from the pin. This design is mainly based on the consideration that when the pressure enters from the direction of the pin, the side of the annular groove II outside the shell is subjected to force, which can effectively avoid deformation of the shell, thereby preventing the formation of a gap between the internal sintered body and the shell, and avoiding affecting the sealing of the inside of the flange cavity.

[0040] Ninth, in this scheme, considering the sealing effect after the head seat is plugged in, at least two sealing rings are arranged on the sealing surface of the plugging end of the plug, of which the first sealing ring can play a role in bearing pressure, and the second sealing ring can increase the safety factor to prevent the first sealing ring from failing and causing damage to the equipment at the tail end. An annular groove II is arranged on the outer cylindrical surface of the flange I. The sealing member I in the annular groove II can achieve the sealing between the pin component and the inner cavity of the plug shell, so that the pin component and the inner wall of the plug shell form a complete sealing cavity to achieve the sealing between the pin component and the shell, and the jack component and the socket shell also use the sealing member III to achieve the sealing between the two. The tail end of the socket shell is respectively provided with two axial and radial seals, which can be installed and fixed with the equipment panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0042] Figure 1 The overall structure diagram of the optical fiber connector head seat after plugging and sealing of the present invention: glue filling and sealing; Figure 2 This is a cross-sectional view of the optical fiber connector head seat after plugging and sealing: glue filling and sealing; Figure 3 A three-dimensional diagram of the plug connector of the present invention: glue-filled and sealed; Figure 4 A cross-sectional view of the plug connector of the present invention Figure 1 ; Figure 5 A cross-sectional view of the plug connector of the present invention Figure 2 : With dust cover; Figure 6 A cross-sectional view of an embodiment of the pin component of the present invention Figure 1 ; Figure 7 A cross-sectional view of another embodiment of the pin component of the present invention Figure 2 ; Figure 8 is a three-dimensional diagram of the socket connector of the present invention; Fig. 9 is a cross-sectional view of the socket connector of the present invention; Fig.10 A cross-sectional view of the socket connector of the present invention: with a dust cover; Fig.11 is a cross-sectional view of the jack component of the present invention; Fig.12 The overall structure diagram of the optical fiber connector head after plugging and sealing in the present invention: glass sealing; Fig.13 This is a cross-sectional view of the optical fiber connector head seat after plugging and sealing in the present invention: glass sealing; Fig.14 A three-dimensional diagram of the plug connector of the present invention: Glass sealing: Fig.15 A cross-sectional view of the plug connector of the present invention Figure 1 ; Fig.16 A cross-sectional view of the plug connector of the present invention Figure 2 : With dust cover; Fig.17 A cross-sectional view of a pin component in an embodiment of the present invention Figure 3 ; Fig.18 A cross-sectional view of a pin component in an embodiment of the present invention Figure 4 ; Fig.19 A three-dimensional diagram of the socket connector of the present invention: glass sealing; Fig. 20 is a cross-sectional view of the socket connector of the present invention; Fig.21 A cross-sectional view of the socket connector of the present invention: with a dust cover; Fig. 22 is a cross-sectional view of the jack component of the present invention; Fig.23 This is a schematic diagram of sintering with the pin end facing upward in the present invention; Fig.24 This is a schematic diagram of sintering with the pin end facing downward in the present invention: ceramic support sleeves are provided at both ends of the glass tube; Fig.25 This is a schematic diagram of sintering with the pin end facing downward in the present invention: a ceramic support sleeve is provided at one end of the glass tube; Fig.26 Schematic diagram of the external pressure-bearing surface of the annular groove II of the pin component in the present invention; Markings in the figure: 1. Pin Ⅰ; 2. Flange I; 21. annular groove I, 22. annular groove II, 23. stop platform I, 24. cavity I, 25. annular groove, 26. limit platform I, 27. sealing element I, 28. boss; 2-1, sealing part, 2-2, movable part, 2-3, glass tube I, 2-4, ceramic support sleeve I, 2-5, annular groove III, 2-6, sealing cavity, 2-7, through cavity; 3. Kit; 31. Cavity II, 32. Limiting platform II, 33. Positioning boss; 4. Elastic parts; 5. Retaining ring; 6. Filling rubber sleeve; 61. glue filling cavity, 62. sealing groove, 63. sealing element II, 64. perforation; 7. Gasket; 8. Flange II; 81. Cavity III, 82. Annular groove IV, 83. Sealing element III, 84. Glass tube II, 85. Ceramic support sleeve II, 86, annular groove VI; 9. Pin II; 100. Pin parts; 200, plug housing; 201, cavity IV, 202, annular groove V, 203, sealing member IV, 204, crimping member I, 205, connecting nut, 206, stop ring, 207, plug dust cover; 300, jack component; 400, socket housing; 401, cavity V, 402, crimping piece II, 403, socket dust cover, 404, connecting flange, 405, sealing piece V, 406, sealing piece VI; 500, connector plug; 600, connector socket; 1001. The arrow indicates the uneven sintering surface of the sintered glass; 1002. The arrow indicates the smooth sintering surface of the sintered glass; 1003, external pressure surface; DETAILED DESCRIPTION

[0043] The present invention is described in detail below by means of exemplary embodiments. However, it should be understood that, without further description, elements, structures and features in one embodiment may also be beneficially combined in other embodiments.

[0044] It should be noted that, unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by persons with ordinary skills in the field to which the invention belongs. The words "one", "an" or "the" and the like used in the patent application specification and claims of the present invention do not express quantitative limitations, but indicate the existence of at least one. Words such as "include" or "comprise" indicate that the elements or objects appearing before "include" or "comprises" include the elements or objects listed after "include" or "comprises" and their equivalents, but do not exclude other elements or objects with the same function.

[0045] Example 1 like Figure 6 As shown, the present invention provides a plug component, including a plug pin Ⅰ1, a flange Ⅰ2, a set 3 and an elastic member 4. The flange Ⅰ2 is formed with a through cavity Ⅰ24 along the central axis direction. The head end shape of the cavity Ⅰ24 is adapted to the end shape of the plug pin Ⅰ1 (the plug component has the end where the plug pin Ⅰ1 is installed as the head end). The head end of the plug pin Ⅰ1 is inserted into the head end of the cavity Ⅰ24 and fixed inside. The plug pin Ⅰ1 and the cavity Ⅰ24 are interference fit. The cavity Ⅰ24 is sealed by glue filling. The set 3 is formed along the central axis direction. A through cavity Ⅱ31 is formed in the axial direction, and the tail end of the flange Ⅰ2 passes through the cavity Ⅱ31 and extends out of the cavity Ⅱ31. An elastic member 4 is provided between the flange Ⅰ2 and the kit 3. The flange Ⅰ2 can float axially relative to the kit 3 and compress the elastic member 4. The elastic member 4 adopts a spring. When the head seat pin is connected, the elastic member 4 is compressed, so that the pin Ⅰ1 at the head end of the flange Ⅰ2 and the matching docking pin Ⅱ9 have good docking reliability. At the same time, the elastic member 4 can accumulate elastic force to reset the flange Ⅰ2.

[0046] In a typical embodiment of the present invention, the flange Ⅰ2 can be implemented as follows: the flange Ⅰ2 adopts an integrated molding design, and a cavity Ⅰ24 is formed along the central axis of the flange Ⅰ2. The cavity head end of the flange Ⅰ2 is fixed to the ceramic pin Ⅰ1 by interference fit. An annular groove Ⅱ22 is also provided on the outer cylindrical surface of the flange Ⅰ2. A sealing member Ⅰ27 for sealing between the pin component 100 and the plug outer shell 200 is provided in the annular groove Ⅱ22. The sealing member Ⅰ27 adopts a high-hardness sealing ring. This solution forms a complete sealed cavity between the pin component 100 and the inner wall of the plug outer shell 200 by providing a sealing ring of precise size, thereby achieving effective sealing between the pin component 100 and the external shell.

[0047] In this solution, a stop platform Ⅰ23 is provided on one side of the tail end of the annular groove Ⅱ22, and a limit platform Ⅰ26 and a boss 28 are provided on the outer cylindrical surface of the flange Ⅰ2 on one side of the tail end of the stop platform Ⅰ23. A groove for installing the elastic member 4 is formed between the limit platform Ⅰ26 and the boss 28, and the cylindrical spring is installed in the groove. In fact, since the limit platform Ⅱ32 is provided inside the cavity Ⅱ31 of the set 3, after the elastic member 4 is provided inside the set 3, the tail end of the elastic member 4 contacts the limit platform Ⅱ32, and usually does not contact the boss 28. The purpose of providing the boss 28 is to achieve the sliding fit between the flange Ⅰ2 and the inner wall of the tail end of the cavity Ⅱ31 of the set 3. The elastic member 4 is placed in the space formed by the outer step of the flange Ⅰ2 and the inner step of the set 3. One end of the elastic member 4 abuts against the limit platform Ⅰ26, and the other end abuts against the limit platform Ⅱ32. Due to the clearance fit between the flange Ⅰ2 and the set 3, the elastic member 4 can float freely axially in the gap between the two. There is a large diameter section between the limit platform Ⅰ26 and the stop platform Ⅰ23, and the large diameter section slides with the inner wall of the head end of the cavity Ⅱ31. The tail end of the annular groove Ⅱ22 is also provided with an annular groove Ⅰ21. There is a small diameter section between the boss 28 and the annular groove Ⅰ21, and the small diameter section slides with the inner wall of the tail end of the cavity Ⅱ31, wherein the diameter of the large diameter section is greater than the diameter of the small diameter section. In this solution, a spring is provided inside the pin component 100, which can realize the axial floating of the pin by itself while realizing the sealing of the cavity Ⅰ24 of the flange Ⅰ2, thereby effectively ensuring the reliability of the pin connection.

[0048] In this embodiment, in order to limit the moving position of flange Ⅰ2 relative to the kit 3 along the first axial direction, a stop platform Ⅰ23 is also provided on the outer cylindrical surface of flange Ⅰ2. The stop platform Ⅰ23 cooperates with the head end face of the kit 3 to form a stop limit for flange Ⅰ2 along the first axial direction. The first axial direction refers to the axial direction from the head end of flange Ⅰ2 to the tail end.

[0049] In this solution, a retaining ring 5 is fixedly placed inside the annular groove Ⅰ21 at the rear end of the flange Ⅰ2, and the retaining ring 5 abuts against the rear end face of the set 3. The retaining ring 5 can be used as a support point for the axial floating of the flange Ⅰ2 and the pin Ⅰ1. In this arrangement, one end of the set 3 is subjected to the extrusion force of the elastic member 4, and the other end is stopped by the retaining ring 5. In this solution, the setting of the retaining ring 5 ensures the axial floating function of the pin component 100 and makes the pin component 100 an independent component, which is convenient for subsequent connector manufacturing to improve production efficiency, and can be combined with different outer shells as an independent component, and produced and sold as an independent component.

[0050] In this embodiment, a positioning boss 33 is provided in the circumferential direction of the kit 3, and the positioning boss 33 is used to cooperate with the step in the cavity IV 201 of the plug outer shell 200 to achieve axial positioning installation.

[0051] This solution also provides a glue potting sleeve 6 located at the rear end of the flange Ⅰ2; a glue potting cavity 61 is formed in the glue potting sleeve 6, a perforation 64 is formed on the head end face of the glue potting sleeve 6, an internal thread that matches the external thread of the rear end of the flange Ⅰ2 is formed on the inner wall of the perforation 64, the rear end of the flange Ⅰ2 extends into the glue potting cavity 61 through the perforation 64, and a glue potting port is also provided on the rear end face of the glue potting sleeve 6. This solution also considers that in order to further improve the sealing effect, a sealing groove 62 is formed at the head end of the glue potting sleeve 6, a gasket 7 is sleeved on the rear end of the flange Ⅰ2, and the gasket 7 is located between the retaining ring 5 and the glue potting sleeve 6, and the gasket 7 is used to block the port of the sealing groove 62 to form a sealing cavity, and a sealing member Ⅱ 63 is also provided inside the sealing groove 62, and the sealing member Ⅱ 63 and the gasket 7 cooperate to play a secondary sealing role.

[0052] In this embodiment, the tail end connector of the flange Ⅰ2 includes a threaded connection section and an annular groove connection section, wherein the threaded connection section cooperates with the perforation 64 on the side wall of the head end of the glue-filling sleeve 6, and the inner wall of the perforation 64 is formed with an internal thread that cooperates with the threaded connection section. The annular groove connection section extends into the glue-filling area of ​​the glue-filling sleeve 6. In order to improve the connection effect between the annular groove connection section and the sealing colloid, the annular groove connection section is provided with a plurality of annular grooves 25 along the axial direction. The annular groove 25 can effectively increase the contact surface between the sealing colloid in the glue-filling sleeve 6 and the tail end of the flange Ⅰ2, so that it can be better bonded and fixedly connected with the sealing colloid in the glue-filling cavity 61. The adhesion between the tail end of the flange Ⅰ2 and the glue-filling sleeve 6 is ensured, and the reliability of the sealing function is ensured. The two functional designs of floating and sealing are realized through different structures. The two are independent of each other, and there is no mutual interference between the two functions. The sealing will not change due to the design of the floating function, thereby realizing the organic combination of floating and sealing functions.

[0053] The following is an explanation of the implementation method of the setting position of the kit 3: This scheme can be implemented as follows. First, as shown in the figure, the kit 3 is set in the middle section of the flange Ⅰ2 and is located on the head end side of the glue-filling sleeve 6. For the first implementation, the design of setting the kit 3 in the middle section of the flange Ⅰ2 is adopted. As shown in the figure, by setting the kit 3 in the middle section of the flange Ⅰ2, the axial dimension of the flange Ⅰ2 can be reduced and the maximum external dimension of the entire pin component 100 can be made smaller. Moreover, such a design has another advantage that the kit 3 and the glue-filling sleeve 6 can be relatively independent, and the support point of the kit 3 can be realized by setting the retaining ring 5. At the same time, the kit 3 and the glue-filling sleeve 6 are both set in a detachable manner, which is convenient for the processing design of the components to reduce the difficulty of production. When pouring glue, firstly, the tail end of the cavity Ⅰ24 of the flange Ⅰ2 is filled with glue once to fix the optical fiber therein, and then the glue-filling sleeve 6 is poured with glue for the second time, so as to realize the secondary sealing of the tail end cavity port of the flange Ⅰ2, so as to further improve the high temperature resistance and sealing performance. The second is an embodiment without drawings, in which the set 3 can also be placed at the tail of the flange Ⅰ2 and located outside the glue-filling sleeve 6 or arranged on the side of the tail end of the glue-filling sleeve 6. For the second embodiment, the set 3 is placed at the tail of the flange Ⅰ2, and the floating function can also be achieved through a specific structure, but this embodiment has the following defects in order to improve the reliability of the sealing performance: because this design sets the flange Ⅰ2 and the glue-filling sleeve 6 as a whole, which will increase the axial size of the flange Ⅰ2, which will easily increase the difficulty of processing and production of the components. If the set 3 is combined with the glue-filling sleeve 6 to achieve the floating function, the size of the set 3 needs to be increased. Such a design will cause the overall axial and radial dimensions of the pin component 100 to become larger. Alternatively, although a connector can be fixed at the tail of the glue-filling sleeve 6 and then assembled with the inner cavity of the set 3 through the connector, the axial floating function of the pin Ⅰ1 can be achieved, but this will also cause the axial size of the pin component 100 to become larger. Therefore, compared with the second embodiment, the first embodiment is a more preferred embodiment of the present solution. The structure of the first embodiment is more compact, the parts are easy to process, and the overall structural size of the manufactured pin component 100 is smaller.

[0054] Example 2 like Fig.17As shown, this embodiment provides a pin component. This scheme is described with the flange Ⅰ2 as a split design. The pin component 100 includes a pin Ⅰ1, a flange Ⅰ2, a kit 3 and an elastic member 4. The flange Ⅰ2 includes a sealing member 2-1 located at the head end and a movable member 2-2 located at the tail end. The head end of the movable member 2-2 is connected to the tail end of the sealing member 2-1 and is coaxially arranged. In this scheme, the head end of the sealing member 2-1 is forcibly plugged with a pin Ⅰ1. The sealing member 2-1 is provided with a sealing cavity 2-6 of a glass sintering sealing method along the central axis. In this embodiment, since the glass sintering method is adopted, a section of the sealing cavity 2-6 is used as a sintering cavity. The movable member 2-2 is provided with a kit 3 outside. The kit 3 forms a through cavity Ⅱ31 along the central axis. The tail end of the movable member 2-2 passes through the cavity Ⅱ31 and extends to the outside of the cavity Ⅱ31. An elastic member 4 is provided between the movable member 2-2 and the kit 3. The flange Ⅰ2 as a whole can move axially relative to the kit 3 and The elastic member 4 is compressed, so that the pin Ⅰ1 at the head end of the flange Ⅰ2 and the mating pin Ⅱ9 have good docking reliability. This solution ensures the pin axial floating function of the pin component 100, and also makes the pin component 100 have good sealing performance. The flange Ⅰ2 is set to be split. The purpose of such design is: considering the processing technology of the elongated hole in the inner cavity of the flange Ⅰ2, such a split design is more conducive to reducing the processing and manufacturing size and difficulty of the component. The sealing member 2-1 at the front end is used to realize the sealing function, and the movable member 2-2 at the rear end is used to cooperate to realize the floating function. It should be pointed out that the installation position of the above-mentioned kit 3 can also be set to cooperate with the sealing member 2-1, but this method requires lengthening the length of the flange Ⅰ2 and the size of the kit 3, which will increase the processing difficulty of the flange Ⅰ2 and cause the maximum external size of the pin component to increase.

[0055] In this solution, the sealed cavity 2-6 also includes a housing for installing a ceramic support sleeve I2-4, the diameter of which is larger than the diameter of the glass sintering area, so that the ceramic support sleeve I2-4 can provide good support for the glass sintering body. The ceramic support sleeve I2-4 serves to provide heat insulation and protection for the optical fiber coating layer. Figure 23-25 As shown, the ceramic support sleeve Ⅰ2-4 can be set in a variety of ways. The ceramic support sleeve Ⅰ2-4 can be set at the head end, tail end or both ends of the sintered glass. During the sintering process, the ceramic support sleeve Ⅰ2-4 is first fixed in the cavity with force, and one end of the core of the optical fiber passes through the sintered glass tube Ⅰ2-3 and the ceramic support sleeve Ⅰ2-4 into the interior of the pin Ⅰ1, and then the glass is sintered. During sintering, the glass tube Ⅰ2-3 is located above the ceramic support sleeve Ⅰ2-4. The advantage of using this sintering method is that during sintering, the molten glass is sintered downward by its own gravity and sintered with the upper end surface of the ceramic support sleeve Ⅰ2-4 below to form a flat bottom surface. More preferably, considering that the pressure in this scheme is generated from the direction of the pin Ⅰ1, as shown in FIG. Fig.24As shown in FIG. 25, a ceramic support sleeve Ⅰ2-4 is provided at the head end of the glass tube Ⅰ2-3. The end of the pin component 100 with the pin Ⅰ1 is placed downward and the glass is sintered. At this time, the glass tube Ⅰ2-3 is located at the upper end of the ceramic support sleeve Ⅰ2-4. During sintering, the molten glass flows downward by its own gravity and sinters with the upper end surface of the ceramic support sleeve Ⅰ2-4 to form a flat bottom surface. Fig.24 The arrow 1002 in the figure shows the flat sintered surface of the sintered glass. The pin component 100 manufactured by this sintering method will be more reliably sealed when pressed from the direction of the pin Ⅰ1. Fig.23 As shown, the end of the pin component 100 with the pin Ⅰ1 is set upward and glass sintering is performed. Due to the gravity of the sintered glass after melting, the sintered surface formed by sintering the sintered glass in the pressure direction will not be smooth. Fig.23 The arrow 1001 shows the uneven sintering surface of the sintered glass. Fig.23 The arrow 1002 in the figure shows the flat sintered surface of the sintered glass. Since the pressure is generated from the direction of the plug pin Ⅰ1, the sealing effect of the plug pin component 100 in this sintering method is not as reliable as the above sintering method in which the end of the plug pin component 100 with the plug pin Ⅰ1 is facing downward. Fig.23 , 24 As shown, when ceramic support sleeves Ⅰ2-4 are provided at both ends of the sintered glass tube Ⅰ2-3, this method may cause the heat generated by sintering to be unable to dissipate quickly during the sintering process, and it is easy to form bubbles that affect the sintering quality. Therefore, in order to ensure the sintering effect, a heat dissipation exhaust hole can be opened on the sealing part 2-1, but in order to meet the later sealing requirements, this exhaust hole needs to be sealed after the sintering is completed.

[0056] In this embodiment, the elastic member 4 is installed in the annular groove of the outer cylindrical surface of the movable member 2-2, wherein the two ends of the groove are respectively the limit platform Ⅰ26 and the boss 28, and the boss 28 is used to consider the sliding fit between the flange Ⅰ2 and the inner wall of the cavity Ⅱ31 of the set 3. One end of the elastic member 4 abuts against the limit platform Ⅰ26, and the other end abuts against the limit platform Ⅱ32 arranged in the circumferential direction of the cavity Ⅱ31. In this solution, the elastic member 4 adopts a spring, and the spring is arranged in the pin component 100. When the pin of the head seat is connected, the flange Ⅰ2 and the pin Ⅰ1 can float axially, and the spring is compressed to effectively ensure the reliability of the pin connection.

[0057] In this embodiment, in order to limit the moving position of flange Ⅰ2 relative to the set 3 along the first axial direction, a stop platform Ⅰ23 is provided on the outer cylindrical surface of flange Ⅰ2. In this embodiment, the stop platform Ⅰ23 is on the tail end face of the sealing component 2-1, and the stop platform Ⅰ23 cooperates with the head end face of the set 3 to form a stop limit for flange Ⅰ2 along the first axial direction. The first axial direction refers to the axial direction from the head end of flange Ⅰ2 to the tail end.

[0058] As shown in the figure, an annular groove Ⅰ21 is circumferentially arranged on the outer cylindrical surface of the movable part 2-2, and a retaining ring 5 is arranged inside the annular groove Ⅰ21. The retaining ring 5 abuts against the rear end face of the kit 3, so as to be used as an axial floating support point for the flange Ⅰ2 and the pin Ⅰ1. In this embodiment, a positioning boss 33 is circumferentially arranged on the kit 3, which is used to cooperate with the cavity IV201 of the plug outer shell 200 for installation and fixation to achieve axial positioning.

[0059] As shown in the figure, the movable part 2-2 is provided with a through cavity 2-7 for passing the optical fiber along the central axis, the sintering cavity and the end of the through cavity 2-7 are butt-connected, and the outside of the sintering cavity is provided with an annular groove III2-5 for heating. The annular groove III2-5 corresponds to the inside and outside of the glass sintering area in the cavity I24, and the glass tube I2-3 in the internal sintering area is heated and sintered by the sintering coil arranged in the annular groove III2-5.

[0060] In a typical embodiment of the present invention, an annular groove II 22 is also provided on the outer cylindrical surface of the sealing member 2-1, and a sealing member I 27 for realizing the connection between the pin component 100 and the external shell is provided in the annular groove II 22. The sealing member I 27 adopts a high-hardness sealing ring. By providing a sealing ring of precise size, a complete sealing cavity is formed between the pin component 100 and the inner wall of the plug outer shell 200, thereby effectively realizing the sealing between the pin component 100 and the plug outer shell 200. In order to achieve a better sintering effect, the wall thickness of the sintering area is designed to be thin. The annular groove II 22 and the sealing member I 27 can be arranged on one side of the head end or tail end of the annular groove III 2-5. Taking the example of setting the annular groove II 22 and the sealing member I 27 on the side of the head end of the annular groove III 2-5, when the pressure enters from the direction of the pin, the external force-bearing surface 1003 of the annular groove II 22 outside the shell is subjected to force, which may cause the shell of the sealing member 2-1 to deform, and then cause a gap to form on the sealing surface between the internal sintered body of the sealing member 2-1 and the inner wall of the sintering cavity 211, which may affect the sealing performance. If the annular groove II 22 is set on the side of the head end of the annular groove III 2-5, the force transmission of the pressure-bearing surface (external pressure-bearing surface 1003) of the sealing shell will affect the sealing performance between the sintered object and the shell of the sintering area, and the ceramic pin and the ceramic support sleeve are both interference fits, which will affect the sealing surface of the flange shell when forced installation. Preferably, the annular groove II 22 and the sealing member I 27 are set on the side of the tail end of the annular groove III 2-5, the sealing area is separated from the forced installation structure, and its external pressure-bearing surface 1003 no longer affects the internal sealing sintering area, so that the sealing performance will be better.

[0061] Example 3 The present embodiment provides a socket component, which is adapted to be connected with the pin component 100 of embodiment 1 or embodiment 2. The socket component includes a flange II8, and a cavity III81 is formed along the central axis of the flange II8. The internal shape of the head end of the cavity III81 is adapted to the end shape of the pin II9, and the two are connected by an interference fit. The cavity III81 is sealed by glue filling, welding or glass sintering.

[0062] The following is an explanation of the glue-filling sealing method used inside cavity III81: a glue-filling port is provided at the tail end of cavity III81, and the glue-filling port is communicated with the head end accommodating cavity through a connecting cavity, and forms a complete cavity III81, and an annular groove IV82 is correspondingly provided on the outer cylindrical surface of the external flange II8 of the connecting cavity, and the annular groove IV82 is used for installing a seal III83, and a high-hardness sealing ring is used for the seal III83. The function of the seal III83 is to achieve the sealing between the jack component 300 and the socket outer shell 400, and to form a complete sealed cavity between the jack component 300 and the inner wall of the socket outer shell 400 by setting a sealing ring of precise size.

[0063] The following is an explanation of the glass sintering sealing method used inside the cavity III81: a glass sintering cavity is provided in the middle section of the cavity III81, and a ceramic support sleeve II85 is provided at one or both ends of the glass sintering cavity. An annular groove VI86 is provided on the outer circumferential surface of the external flange II8 of the glass sintering cavity. The annular groove VI86 corresponds to the inside and outside of the glass sintering cavity in the cavity III81. By installing a sintering coil in the annular groove VI86, the internal sintered glass tube II84 is heated and sintered. In this embodiment, the glass sintering method adopts the method of sintering the glass with the pin end facing downward. In this way, one end of the pin is set downward and the glass is sintered. During sintering, the molten glass is sintered downward by its own gravity and the upper end surface of the ceramic support sleeve II85 forms a flat bottom surface. An annular groove IV82 is also provided on the outer cylindrical surface of the flange II8. Preferably, the annular groove IV82 is provided on the tail end side of the annular groove VI86. The annular groove IV82 is used to install a sealing member III83, and the sealing member III83 is used to achieve sealing between the jack component 300 and the socket outer shell 400.

[0064] Example 4 The present embodiment provides a connector plug, including a plug outer shell 200 and a pin component 100 as described in Example 1 or Example 2, which is arranged in the plug outer shell 200. The tail end of the pin component 100 is crimped and fixed in the cavity IV 201 by a crimping piece I 204, and the crimping piece I 204 abuts against the tail of the kit 3. The crimping piece I 204 can be used to fix the pin component 100 and ensure that the internal pin component 100 can be disassembled and replaced at any time. Specifically, the crimping piece I 204 is a hollow crimping threaded head, and the tail end of the pin component 100 is fixed in the cavity IV 201 of the plug outer shell 200 by tightening the threaded head. The pin component 100 can be used in conjunction with an adapter shell of any other shape, and can be disassembled at any time as an independent component without affecting its sealing.

[0065] Taking the cooperation with the pin component 100 of Example 1 as an example, the tail end of the cavity IV201 of the plug outer shell 200 is formed with an internal thread hole, the compression thread head includes a thread head body, a central through hole is formed along the central axis of the thread head body, and an external thread that cooperates with the internal thread hole is formed on the outer cylindrical surface of the thread head body. The central through hole of the thread head body is penetrated outside the glue-filling sleeve 6, and one side of the thread head body abuts against the tail end face of the set 3, thereby fixing the pin component 100 in the plug outer shell 200. Taking the cooperation with the pin component 100 of Example 2 as an example, the thread head body directly abuts against the tail end face of the set 3, fixing the pin component 100 in the plug outer shell 200.

[0066] In this solution, the outer shell of the pin component 100 is sealed with the inner wall of the cavity IV201 through the sealing member I27. In this solution, the sealing member I27 is designed on the outer circle of the flange I2 to cooperate with the inner hole of the plug outer shell 200 to form a complete sealed cavity, thereby achieving sealing between the pin component 100 and the plug outer shell 200.

[0067] In this embodiment, an annular groove V202 is provided on the outer cylindrical surface of the plug end of the plug outer shell 200, and at least two annular grooves V202 are arranged along the axial direction of the plug end of the plug outer shell 200. The annular groove V202 is used to set the sealing member IV203, and the sealing member IV203 is used to achieve the sealing of the connector plug 500 and the inner cavity of the adapter connector socket 600; take the two annular grooves V202 as an example for explanation: two sealing rings are designed on the outer circle of the plug end of the connector plug 500 to cooperate with the socket shell 400 to form a complete sealed cavity, wherein the first sealing ring plays a role of bearing pressure, and the second sealing ring can be used to increase the safety factor, the main purpose of which is to prevent the first sealing ring from failing and causing damage to the equipment terminated at the tail. As shown in the figure, in this scheme, the connector plug is also provided with a plug dust cover 207, which can play a sealing role after being screwed into place, and the two sealing rings can protect the optical fiber contact from contamination.

[0068] It should be noted that, since the size of the pin component 100 in embodiments 1 and 2 of the present solution is relatively small, a high-density node arrangement of the connector can be achieved in a limited space, thereby meeting the use requirements of multi-channel transmission.

[0069] Example 5 This embodiment provides a connector socket, including a socket outer shell 400 and a socket component 300, wherein the socket component 300 is fixed in a cavity V401 of the socket outer shell 400 and fixed by a crimping piece II402, and a sealing piece III83 is used to achieve a seal between the socket component 300 and the cavity V401; the tail end of the socket component 300 is crimped and fixed in the cavity V401 by a crimping piece II402. The crimping piece II402 is a crimping thread head, and the function of the crimping piece II402 is to fix the socket component 300 and ensure that the internal socket component 100 can be disassembled and replaced at any time.

[0070] An internal threaded hole is formed at the tail end of the cavity V401 of the socket outer shell 400, and the compression thread head includes a thread head body, a central through hole is formed along the central axis of the thread head body, and an external thread matching the internal threaded hole is formed on the outer cylindrical surface of the thread head body, and the thread head body abuts against the tail end face of the flange II8, thereby fixing the jack component 300 in the socket outer shell 400. The socket outer shell 400 is provided with a connecting flange 404, and an annular sealing groove is provided on the tail end face of the connecting flange 404 of the socket outer shell 400 for installing a sealing member V405, and a sealing member VI406 is provided on the outer cylindrical surface of the shell on one side of the tail end of the connecting flange 404 of the socket outer shell 400. By setting two axial and radial seals, the connecting flange 404 of the connector socket 600 is installed and fixed to the device panel. The socket dust cover 403 is used to achieve the sealing between the dust cover and the inner cavity of the socket shell 400 through two O-rings.

[0071] Taking the jack component 300 sealed by glue injection as an example, this solution also takes into account the sealing between the jack component 300 and the socket outer shell 400. The flange plate II8 on the outer cylindrical surface of the jack component 300 is provided with an annular groove IV82. The annular groove IV82 is used to install the seal III83. The seal III83 adopts a high-hardness sealing ring. The function of the seal III83 is to achieve the sealing between the jack component and the external shell. By setting a sealing ring of precise size, the jack component 300 and the inner wall of the socket outer shell 400 form a complete sealed cavity.

[0072] Taking the jack component 300 sealed by glass sintering as an example, this solution takes into account the sealing between the jack component 300 and the socket outer shell 400, and an annular groove IV82 is provided on the outer cylindrical surface of the flange II8, and the annular groove IV82 is used to install the sealing member III83, and the sealing member III83 is used to achieve the sealing between the jack component 300 and the external shell. Preferably, the annular groove IV82 is provided on the tail end side of the annular groove VI86.

[0073] Example 6 This embodiment provides an optical fiber connector, including the connector plug 500 described in Embodiment 4 and the connector socket 600 described in Embodiment 5, which are fixedly connected by screwing the connecting nut 205 on the outside of the connector plug 500 with the outer circle of the housing of the connector socket 600, and a stop ring 206 is provided on the plug housing 200 on one side of the connecting nut 205 to limit its axial position, and an annular groove V202 is provided on the outer cylindrical surface of the plug end of the plug housing 200, and the annular groove V202 is used to set the sealing member IV203, and at least two annular grooves V202 are arranged along the axial direction of the plug end of the plug housing 200. The sealing member IV203 is used to achieve the sealing of the connector plug 500 and the inner cavity of the matching connector socket 600, and two sealing rings are designed on the outer circle of the plug end of the connector plug 500 to cooperate with the socket housing 400 to form a complete sealed cavity, the first sealing ring plays a role of bearing pressure, and the second sealing ring is used to increase the safety factor to prevent the first sealing ring from causing damage to the equipment terminated at the tail after failure.

[0074] In this solution, the sealing method of the optical fiber connector includes: the sealing of the plug outer shell and the socket outer shell, the sealing between the flange and the inner cavity of the outer shell installation, the sealing between the optical fiber and the ceramic pin, and the sealing between the optical fiber and the flange. Through the above-mentioned multi-stage sealing, when the product is in use, the plug and the socket are plugged together to ensure the sealing of the product, and signal transmission under high temperature and high pressure environment can be achieved. When the product is disconnected, it still has the function of open sealing. The multiple sealing protections from the shell to the inside of the optical fiber can protect the inside of the installed equipment from being damaged due to excessive deep well water pressure.

[0075] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A pin component, characterized in that: Includes flange Ⅰ and kit; The flange I is formed with a through cavity I along the central axis, the head end of the cavity I is used to accommodate the end of the pin I and fix it, and the interior of the cavity I is sealed; the kit is formed with a through cavity II along the central axis, the tail end of the flange I passes through the cavity II and extends to the outside of the cavity II, an elastic member is provided between the flange I and the kit, and the elastic member is used to achieve axial floating of the flange I relative to the kit.

2. The pin component according to claim 1, characterized in that: The flange I is an integrally formed arrangement; Alternatively, the flange I comprises a sealing member located at the head end and a movable member located at the tail end, and the movable member is axially connected to the sealing member.

3. The pin component according to claim 2, characterized in that: The outer cylindrical surface of the flange plate I is provided with a limiting platform I; the interior of the cavity II forms a limiting platform II; one end of the elastic member abuts against the limiting platform I, and the other end abuts against the limiting platform II.

4. The pin component according to claim 2, characterized in that: An annular groove I is formed on the outer cylindrical surface of the flange I in the circumferential direction. A retaining ring is arranged in the annular groove I. The retaining ring abuts against one side of the rear end of the kit and is used as an axial floating support point of the flange I.

5. The pin component according to claim 2, characterized in that: An annular groove II is also arranged on the outer cylindrical surface of the flange I, and a sealing member I is arranged in the annular groove II. The sealing member I is used to achieve sealing between the pin component and the outer shell of the plug.

6. The pin component according to claim 2, characterized in that: The outer cylindrical surface of the flange I is also provided with a stop platform I, and the stop platform I cooperates with the head end surface of the sleeve to form a stop limit for the flange I along the first axial direction.

7. The pin component according to claim 2, characterized in that: A positioning boss is formed on the outer circumference of the sleeve.

8. The pin component according to any one of claims 1 to 7, characterized in that: A glue pouring sleeve is fixed to the tail end of the flange I, and a glue pouring cavity is formed in the glue pouring sleeve; the glue pouring cavity is communicated with the cavity I.

9. The pin component according to claim 8, characterized in that: The head end face of the glue pouring sleeve is formed with a through hole for the rear end of the flange I to penetrate, and the rear end of the flange I passes through the through hole and extends into the glue pouring cavity to connect with the sealing colloid in the glue pouring cavity.

10. The pin component according to claim 9, characterized in that: A sealing groove is formed on one side of the head end of the perforation, and a sealing member II is arranged in the sealing groove.

11. The pin component according to claim 10, characterized in that: A gasket is also provided on the tail end of the flange I. The gasket is arranged between the rubber-filled sleeve and the retaining ring and is used to block the port of the sealing groove to form a sealing cavity.

12. The pin component according to claim 9, characterized in that At least one annular groove is formed on the outer cylindrical surface of the rear end of the flange I extending into the glue pouring cavity, and the annular groove is used to connect with the sealing glue in the glue pouring cavity.

13. The pin component according to claim 2, characterized in that: An annular groove III is arranged on the outer cylindrical surface of the sealing member, and the annular groove III corresponds to the inside and outside of the glass sintering area in the cavity I, and the annular groove III is used for placing the sintered member.

14. The pin component according to claim 13, characterized in that: At least one end of the glass sintering zone is provided with a ceramic support sleeve I, and the ceramic support sleeve I is used for heat insulation and protection of the optical fiber coating layer.

15. The pin component according to claim 14, characterized in that: A glass tube I is arranged in the glass sintering area, and a ceramic support sleeve I is arranged. The ceramic support sleeve I is located between the glass tube I and the plug pin I, or the glass tube I is located between the ceramic support sleeve I and the plug pin I.

16. The pin component according to claim 14, characterized in that A glass tube I is arranged in the glass sintering area, and two ceramic support sleeves I are arranged. The two ceramic support sleeves I are respectively located at the head and tail ends of the glass tube I, and the ceramic support sleeve I located at the head end of the glass tube I is arranged between the glass tube I and the pin I.

17. A socket component adapted to the pin component according to any one of claims 1 to 16, characterized in that: The socket component includes a flange II, and a cavity III is formed along the central axis of the flange II. The head end of the cavity III is used to accommodate the end of the pin II and fix it. The cavity III is sealed inside. An annular groove IV is provided on the outer cylindrical surface of the flange II. A seal III is installed in the annular groove IV. The seal III is used to achieve sealing between the socket component and the outer shell of the socket.

18. The socket component according to claim 17, characterized in that The cavity III is sealed by glue injection or glass sintering.

19. The socket component according to claim 18, characterized in that An annular groove VI is arranged on the outer circumferential surface of the flange II, and the annular groove VI corresponds to the inside and outside of the glass sintering cavity in the cavity III.

20. The socket component according to claim 19, characterized in that It also includes a ceramic support sleeve II, which is arranged at at least one end of the glass sintering area in the cavity III and is used for heat insulation and protection of the optical fiber coating layer.

21. A connector plug, characterized in that: The invention comprises the pin component according to any one of claims 1 to 16.

22. A connector plug according to claim 21, characterized in that: It also includes a plug outer shell, the pin component is fixed in the cavity IV of the plug outer shell; the pin component is sealed with the inner wall of the cavity IV through the sealing member I, and the plug-in end of the plug outer shell is provided with an annular groove V along its outer circumference, the annular groove V is used to set the sealing member IV, and the sealing member IV is used to achieve the sealing between the connector plug and the inner cavity of the adapter connector socket.

23. A connector plug according to claim 22, characterized in that: The tail end of the pin component is crimped and fixed in the cavity IV by a crimping piece I, and the crimping piece I abuts against the tail end of the kit.

24. A connector plug according to claim 22, characterized in that: At least two annular grooves V are arranged along the outer circumference of the plug housing plug end.

25. A connector socket adapted to a connector plug according to any one of claims 21 to 24, characterized in that: Including the jack component according to any one of claims 17-20.

26. The connector socket according to claim 25, characterized in that: It also includes a socket shell, the jack component is fixed to the cavity V of the socket shell, and the sealing member III is used to achieve the sealing between the jack component and the cavity V; the tail end of the jack component is crimped and fixed in the cavity V by the crimping member II.

27. An optical fiber connector, characterized in that: It comprises the connector plug described in any one of claims 21 to 24 and the connector socket described in claim 25 or 26.

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