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

Abstract

The utility model 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] This utility model belongs to the field of connector technology, specifically relating to an optical fiber connector and its plug, socket, pin component, and jack component. Background Technology

[0002] Currently, data transmission in the oil well logging field is achieved via electrical connectors. However, when the data volume is large or the transmission distance is long, signal transmission may suffer from delays or distortion. With the development of oil well logging technology, the increasing depth of oil wells, and the growing volume of data, the need for timely, efficient, and accurate transmission of measurement data from various downhole equipment modules, including downhole temperature, vibration, flow rate, and pressure, to surface equipment is becoming increasingly urgent. Downhole environments are typically high-temperature and high-pressure environments, requiring a high-temperature and high-pressure resistant fiber optic connector that can align and insert fibers for data transmission under such conditions.

[0003] In existing technologies, as drilling depth increases, temperature gradually increases (up to 175℃), and there are significant pressure differences between different layers downhole (the water pressure difference varies with drilling depth, currently reaching a maximum of 103 MPa). However, most high-temperature and high-pressure connectors that meet these requirements are designed with a sealed connector head and socket after mating to meet the high-temperature and high-pressure requirements. If the fiber optic connector is installed at the equipment end, the connector is in a sealed state before the equipment is lowered into the well. After the operation is completed, the head and socket need to be separated. For example, one of the connector socket or connector plug may remain downhole while the other needs to be brought up. This requires separation of the connector head and socket. However, after separation, the seal fails, and external water, due to its high pressure, can easily enter the logging equipment through the gaps in the separated fiber optic connector plug or socket. This can easily cause damage to the logging equipment connected to the connector tail due to excessive external water pressure. Therefore, it is urgent to solve the technical problem of ensuring that the connector can meet the environmental requirements of high temperature and high pressure even when it is separated. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the prior art and provide an optical fiber connector and its plug, socket, pin, and jack components. This high-temperature, high-pressure sealed optical fiber connector meets the requirements of high-temperature and high-pressure environments in both the mated and disassembled states. The high-temperature, high-pressure sealed optical fiber connector is divided into a plug connector and a socket connector. It meets the requirements of high-temperature and high-pressure environments not only when the head and socket are mated, but also when the head and socket are disassembled.

[0005] One objective of this invention is to provide a pin assembly, comprising a flange I and a kit; the flange I has a through cavity I formed along its central axis, the head end of the cavity I is used to receive and fix the end of the pin I, and the cavity I is sealed inside; the kit has a through cavity II formed along its central axis, the tail end of the flange I passes through the cavity II and extends out of the cavity II, and an elastic element is provided between the flange I and the kit, the elastic element being used to realize the axial floating of the flange I relative to the kit.

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

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

[0008] As a preferred embodiment, an annular groove I is formed circumferentially on the outer cylindrical surface of flange I. A retaining ring is installed in the annular groove I. The retaining ring abuts against one side of the tail end of the assembly and serves as an axial floating support point for flange I.

[0009] As a preferred embodiment, an annular groove II is also provided on the outer cylindrical surface of the flange I, and a sealing element I is provided in the annular groove II. The sealing element I is used to achieve a seal between the pin component and the plug housing.

[0010] As a preferred embodiment, the outer cylindrical surface of the flange I is further provided with a stop plate I, which mates with the head end face of the kit to form a stop and limit the flange I along the first axial direction.

[0011] As a preferred embodiment, the outer circumference of the kit is formed with a positioning boss.

[0012] As a preferred embodiment, a glue-filling sleeve is fixed to the tail end of the flange I, and a glue-filling cavity is formed inside the glue-filling sleeve; the glue-filling cavity is connected to the cavity I.

[0013] As a preferred embodiment, the head end face of the potting sleeve is formed with a through hole for the tail end of flange I to pass through. The tail end of flange I passes through the through hole and extends into the potting cavity to connect with the sealing adhesive in the potting cavity.

[0014] As a preferred embodiment, a sealing groove is formed on one side of the head end of the perforation, and the sealing groove is used to install the sealing element II.

[0015] As a preferred embodiment, a gasket is also provided on the tail end of the flange I. The gasket is placed between the glue-filling sleeve and the retaining ring to seal the port of the sealing groove to form a sealing cavity.

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

[0017] As a preferred embodiment, an annular groove III is provided on the outer cylindrical surface of the sealing member. The annular groove III corresponds to the inner and outer glass sintering zone inside the cavity I, and the annular groove III is used to place the sintered part.

[0018] As a preferred embodiment, at least one end of the glass sintering zone is provided with a ceramic support sleeve I, which 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, and a ceramic support sleeve I is provided. 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 zone, and two ceramic support sleeves I are provided. The two ceramic support sleeves I are 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 positioned between the glass tube I and the pin I.

[0021] The second objective of this utility model is to provide a socket component adapted to any of the above-mentioned pin components. 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 receive and fix the end of the pin II. The cavity III is sealed inside. An annular groove IV is provided on the outer cylindrical surface of the flange II. A sealing element III is installed in the annular groove IV. The sealing element III is used to achieve a seal between the socket component and the socket housing.

[0022] As a preferred embodiment, the cavity III is sealed by potting or glass sintering.

[0023] As a preferred embodiment, an annular groove VI is provided on the outer circular surface of the flange II, and the annular groove VI corresponds to the inner and outer surfaces of the glass sintering cavity in the cavity III.

[0024] As a preferred embodiment, it also includes a ceramic support sleeve II, which is disposed at at least one end of the glass sintering zone within the cavity III, and is used to provide thermal insulation and protection for the optical fiber coating.

[0025] The third objective of this utility model is to provide a connector plug, including any of the aforementioned pin components.

[0026] As a preferred embodiment, the device further includes a plug housing, wherein the pin assembly is fixed within cavity IV of the plug housing; the pin assembly is sealed to the inner wall of cavity IV by sealing member I; an annular groove V is provided along the outer circumference of the plug end of the plug housing, the annular groove V is used to provide sealing member IV, and sealing member IV is used to achieve sealing between the connector plug and the inner cavity of the adapter connector socket.

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

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

[0029] The fourth objective of this utility model is to provide a connector socket that is compatible with any of the connector plugs described above, including any of the socket components described above.

[0030] As a preferred embodiment, the socket housing is also included, with the socket component fixed to cavity V of the socket housing, and sealing member III used to achieve a seal between the socket component and cavity V; the tail end of the socket component is pressed and fixed inside cavity V by crimping member II.

[0031] The fifth objective of this utility model is to provide an optical fiber connector, including any of the connector plugs and connector sockets described above.

[0032] Compared with the prior art, the present invention has at least the following beneficial effects:

[0033] Firstly, the pin assembly in this solution, through structural improvements, can achieve axial floating functionality through its own structure, thereby ensuring the reliability of pin connection. At the same time, the flange satisfies the sealing function through internal sealing of the cavity (using methods such as potting, glass sintering, or welding). The structures of the pin assembly that achieve axial floating and sealing functions are independent of each other, and the sealing function will not be affected by the realization of axial floating. With this design, the pin assembly can meet the environmental requirements of high temperature and high pressure when the fiber optic connector head is connected or separated.

[0034] Secondly, this solution, by setting a retaining ring at the tail end of flange I, can serve as a support point for the floating pin. This not only ensures the floating function of the pin component but also allows the pin component to function as an independent part, facilitating subsequent connector manufacturing and effectively improving production efficiency. The axial floating function of the pin component in this solution does not require the structural cooperation of an external housing; it relies solely on the structure of the pin component itself. This allows the pin component to form an independent part, compatible with plug housings of different shapes and structures, thus facilitating its production and sale as an independent component.

[0035] Thirdly, this solution places the kit on one side of the head end of the potting sleeve and provides an elastic element inside the kit. The elastic element abuts against the flange I and the kit respectively, thereby satisfying the axial floating function. By placing the kit near the middle of the flange I (that is, the kit is located on one side of the head end of the potting sleeve), the axial design size of the flange I can be reduced, and the maximum external size of the entire pin assembly can be limited.

[0036] Fourthly, considering the improvement of the sealing effect of the glue injection, this solution involves first injecting glue into cavity I of flange I, and then injecting glue a second time into the glue injection sleeve. This allows the second glue injection in the glue injection sleeve to re-seal the end of the sealing glue from the first injection. The cavity of flange I and the glue injection cavity in the glue injection sleeve form a connected area. The double sealing effect of the two glue injections can better meet the sealing requirements.

[0037] Fifth, in order to further ensure the sealing effect at the connection between flange I and the potting sleeve, the head end of the potting sleeve is also sealed with a gasket to form a sealing cavity in the sealing groove at the head end of the potting sleeve. A sealing ring is set in the sealing cavity to achieve a double sealing effect and further improve the sealing ability of the product.

[0038] Sixth, considering the ease of manufacturing the components, this solution also allows for the design of flange I as a split type. The moving part and the sealing part are axially connected. The inner cavity of the sealing part adopts a glass sintering sealing method. The shape of the moving part matches the inner cavity of the kit to achieve the axial floating function of the pin. With this design, the external size of a single component is reduced, and the processing difficulty of the component is effectively reduced.

[0039] Seventh, this solution adopts a glass sintering method with the pin facing downwards, which makes the end of the glass sintered body facing the pin more flat, thereby making the sealing effect inside the flange cavity more reliable when pressure is applied from the direction of the pin.

[0040] Eighth, in this design, the annular groove II on the outer cylindrical surface of the sealing component is located on the side of the annular groove III away from the pin. This design is mainly to take into account that when 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 prevent the shell from deforming, thereby preventing gaps from forming between the internal sintered body and the shell, and avoiding affecting the sealing performance of the flange cavity.

[0041] Ninth, this solution, considering the sealing effect after the connector is inserted, has at least two sealing rings on the sealing surface of the plug's insertion end. The first sealing ring serves to bear pressure, while the second sealing ring increases the safety factor, preventing damage to the equipment connected to the tail end if the first sealing ring fails. An annular groove II is provided on the outer cylindrical surface of flange I. Through the sealing element I within the annular groove II, a seal is achieved between the pin assembly and the inner cavity of the plug housing, forming a complete sealed cavity between the pin assembly and the inner wall of the plug housing. The socket assembly and the socket housing are also sealed using sealing element III. The tail end of the socket housing is provided with both axial and radial seals, enabling installation and fixation to the equipment panel. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0043] Figure 1 This is a structural diagram of the fiber optic connector head and base after mating and sealing: potting seal;

[0044] Figure 2 This is a cross-sectional view of the fiber optic connector head and base after mating and sealing: potting seal;

[0045] Figure 3 This is a perspective view of the plug connector in this utility model: potting and sealing;

[0046] Figure 4 This is a cross-sectional view of the plug connector in this utility model. Figure 1 ;

[0047] Figure 5 This is a cross-sectional view of the plug connector in this utility model. Figure 2 It comes with a dust cover;

[0048] Figure 6 A cross-sectional view of one embodiment of the pin insertion component in this utility model. Figure 1 ;

[0049] Figure 7 A cross-sectional view of another embodiment of the pin component in this utility model. Figure 2 ;

[0050] Figure 8 This is a perspective view of the socket connector in this utility model;

[0051] Figure 9 This is a cross-sectional view of the socket connector in this utility model;

[0052] Figure 10 This is a cross-sectional view of the socket connector in this utility model: with a dust cover;

[0053] Figure 11 This is a cross-sectional view of the insertion hole component in this utility model;

[0054] Figure 12 This is a structural diagram of the fiber optic connector head and base after mating and sealing in this utility model: glass sealing;

[0055] Figure 13 This is a cross-sectional view of the fiber optic connector head and base after mating and sealing: glass sealing;

[0056] Figure 14 This is a perspective view of the plug connector in this utility model: Glass sealing:

[0057] Figure 15 This is a cross-sectional view of the plug connector in this utility model. Figure 1 ;

[0058] Figure 16 This is a cross-sectional view of the plug connector in this utility model. Figure 2 It comes with a dust cover;

[0059] Figure 17 This is a cross-sectional view of the pin component in an embodiment of the present invention. Figure 3 ;

[0060] Figure 18 This is a cross-sectional view of the pin component in an embodiment of the present invention. Figure 4 ;

[0061] Figure 19 This is a perspective view of the socket connector in this utility model: glass sealing;

[0062] Figure 20 This is a cross-sectional view of the socket connector in this utility model;

[0063] Figure 21 This is a cross-sectional view of the socket connector in this utility model: with a dust cover;

[0064] Figure 22This is a cross-sectional view of the insertion hole component in this utility model;

[0065] Figure 23 This is a schematic diagram of the sintering process with the insert end facing upwards in this utility model;

[0066] Figure 24 This is a schematic diagram of the sintering process with the pin end facing downwards in this utility model: ceramic support sleeves are provided at both ends of the glass tube;

[0067] Figure 25 This is a schematic diagram of the sintering process with the pin end facing downwards in this utility model: a ceramic support sleeve is provided at one end of the glass tube;

[0068] Figure 26 This is a schematic diagram of the external pressure-bearing surface of the annular groove II of the pin component in this utility model;

[0069] Marked in the image:

[0070] 1. Insert pin I;

[0071] 2. Flange I;

[0072] 21. Annular groove I; 22. Annular groove II; 23. Stop plate I; 24. Cavity I; 25. Annular groove; 26. Limiting plate I; 27. Seal I; 28. Boss.

[0073] 2-1. Sealing component; 2-2. Moving component; 2-3. Glass tube I; 2-4. Ceramic support sleeve I; 2-5. Annular groove III; 2-6. Sealing cavity; 2-7. Through cavity;

[0074] 3. Kit;

[0075] 31. Cavity II; 32. Limiting platform II; 33. Positioning boss;

[0076] 4. Elastic components;

[0077] 5. Retaining ring;

[0078] 6. Glue-filled sleeve;

[0079] 61. Glue filling cavity; 62. Sealing groove; 63. Seal II; 64. Perforation;

[0080] 7. Gaskets;

[0081] 8. Flange II;

[0082] 81. Cavity III; 82. Annular Groove IV; 83. Seal III; 84. Glass Tube II; 85. Ceramic Support Sleeve II.

[0083] 86. Annular groove VI;

[0084] 9. Insert pin II;

[0085] 100. Pin assembly;

[0086] 200. Plug housing;

[0087] 201. Cavity IV; 202. Annular groove V; 203. Seal IV; 204. Press fitting I; 205. Connecting nut; 206. Stop ring; 207. Plug dust cover.

[0088] 300. Socket components;

[0089] 400. Socket housing;

[0090] 401. Cavity V; 402. Crimping component II; 403. Socket dust cover; 404. Connecting flange; 405. Seal V; 406. Seal VI;

[0091] 500. Connector plug;

[0092] 600. Connector socket;

[0093] 1001. The arrow indicates an uneven sintering surface in the sintered glass.

[0094] 1002. The arrow indicates the smooth sintered surface of the sintered glass;

[0095] 1003. External bearing surface; Detailed Implementation

[0096] The present invention will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0097] It should be noted that, unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "a," "an," or "the," and similar words used in this utility model patent application specification and claims do not express a quantity limitation, but rather indicate the presence of at least one. Terms such as "comprising" or "including" indicate that the elements or objects preceding "comprising" encompass the elements or objects listed following "comprising" or "including" and their equivalents, but do not exclude other elements or objects having the same function.

[0098] Example 1

[0099] like Figure 6As shown, this solution provides a pin assembly, including a pin I1, a flange I2, a kit 3, and an elastic element 4. The flange I2 has a through cavity I24 formed along its central axis. The shape of the head end of the cavity I24 is adapted to the shape of the end of the pin I1 (the end of the pin assembly where the pin I1 is installed is the head end). The head end of the pin I1 is inserted into the head end of the cavity I24 and fixed inside. The pin I1 and the cavity I24 are interference-fitted. The cavity I24 is sealed by potting. The kit 3 is along its central axis. A through cavity II31 is formed along the axial direction. The tail end of the flange I2 passes through the cavity II31 and extends out of the cavity II31. An elastic element 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 element 4. The elastic element 4 is a spring. When the head seat pins are engaged, the elastic element 4 is compressed, so that the pin I1 at the head end of the flange I2 and the mating pin II9 have good engagement reliability. At the same time, the elastic element 4 can accumulate the elastic force to reset the flange I2.

[0100] In a typical embodiment of this utility model, the flange I2 can be implemented as follows: the flange I2 adopts an integral molding design, and a cavity I24 is formed along the central axis of the flange I2. The head end of the cavity 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 element I27 is provided in the annular groove II22 to achieve a seal between the pin component 100 and the plug housing 200. The sealing element I27 adopts a high-hardness sealing ring. This solution, by setting a sealing ring of precise size, makes the pin component 100 and the inner wall of the plug housing 200 form a complete sealing cavity, thereby achieving an effective seal between the pin component 100 and the outer housing.

[0101] In this design, a stop platform I23 is provided on one side of the tail end of the annular groove II22. A limiting 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 element 4 is formed between the limiting platform I26 and the boss 28, and a cylindrical spring is installed in the groove. In practice, since the cavity II31 of the kit 3 has a limiting platform II32, after the elastic element 4 is placed inside the kit 3, its tail end contacts the limiting platform II32 and normally does not contact the boss 28. The purpose of the boss 28 is to achieve a sliding fit between the flange I2 and the inner wall of the tail end of the cavity II31 of the kit 3. The elastic element 4 is placed in the space formed by the outer step of the flange I2 and the inner step of the kit 3. One end of the elastic element 4 abuts against the limiting platform I26, and the other end abuts against the limiting platform II32. Due to the clearance fit between the flange I2 and the kit 3, the elastic element 4 can freely float axially within the gap between them. The section between the limiting platform I26 and the stop platform I23 is a large-diameter section, which slides with the inner wall of the head end of the cavity II31. The tail end of the annular groove II22 also has an annular groove I21. The section between the boss 28 and the annular groove I21 is a small-diameter section, which slides with the inner wall of the tail end of the cavity II31. The diameter of the large-diameter section is larger than the diameter of the small-diameter section. This design, through the spring embedded in the pin component 100, enables the pin to float axially while simultaneously sealing the cavity I24 of the flange I2, thus effectively ensuring the reliability of the pin connection.

[0102] In this embodiment, in order to limit the movement position of flange I2 relative to kit 3 along the first axial direction, a stop plate I23 is also provided on the outer cylindrical surface of flange I2. The stop plate I23 cooperates with the head end face of kit 3 to form a stop limit on 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.

[0103] In this design, a retaining ring 5 is fixedly placed inside the annular groove 121 at the tail end of flange I2. The retaining ring 5 abuts against the tail end face of kit 3. The retaining ring 5 can be used as a support point for the axial floating of flange I2 and pin I1. With this configuration, one end of kit 3 is subjected to the compressive force of elastic element 4, and the other end is stopped by retaining ring 5. In this design, the setting of retaining ring 5 ensures the axial floating function of pin component 100 and also makes pin component 100 an independent component, which facilitates subsequent connector manufacturing, improves production efficiency, and allows it to be combined with different housings as an independent component for production and sales.

[0104] In this embodiment, the kit 3 is provided with a positioning boss 33 on the circumference. The positioning boss 33 is used to cooperate with the step in the cavity Ⅳ201 of the plug housing 200 to achieve axial positioning and installation.

[0105] This design also includes a potting sleeve 6 located at the tail end of flange I2. A potting cavity 61 is formed within the potting sleeve 6. A through hole 64 is formed on the head end face of the potting sleeve 6, and an internal thread that mates with the external thread of the tail end of flange I2 is formed on the inner wall of the through hole 64. The tail end of flange I2 extends into the potting cavity 61 through the through hole 64. A potting port is also provided on the tail end face of the potting sleeve 6. Furthermore, to further enhance the sealing effect, a sealing groove 62 is formed at the head end of the potting sleeve 6. A gasket 7 is fitted onto the tail end of flange I2, positioned between the retaining ring 5 and the potting sleeve 6. The gasket 7 seals the port of the sealing groove 62 to form a sealing cavity. A sealing element II 63 is also provided inside the sealing groove 62. The sealing element II 63 and the gasket 7 work together to provide a secondary seal.

[0106] In this embodiment, the tail end connector of flange I2 includes a threaded connection section and an annular groove connection section. The threaded connection section mates with the through hole 64 on the side wall of the head end of the potting sleeve 6, and the inner wall of the through hole 64 has an internal thread that mates with the threaded connection section. The annular groove connection section extends into the potting area of ​​the potting sleeve 6. To improve the connection effect between the annular groove connection section and the sealing adhesive, the annular groove connection section is provided with several annular grooves 25 along the axial direction. The annular grooves 25 can effectively increase the contact surface between the sealing adhesive in the potting sleeve 6 and the tail end of flange I2, thereby enabling better bonding and fixation with the sealing adhesive in the potting cavity 61. This ensures the adhesion between the tail end of flange I2 and the potting sleeve 6, ensuring the reliability of the sealing function. The two functional designs of floating and sealing are achieved through different structures. They are independent of each other and do not interfere with each other. The sealing performance will not change due to the design of the floating function, thus achieving an organic combination of floating and sealing functions.

[0107] The following describes the implementation method for the placement of kit 3: This solution can be implemented as follows: First, as shown in the figure, kit 3 is placed in the middle section of flange I2 and located on one side of the head end of the potting sleeve 6. For the first implementation method, the design of placing kit 3 in the middle section of flange I2, as shown in the figure, reduces the axial dimension of flange I2 and makes the maximum external dimension of the entire pin assembly 100 smaller. Furthermore, this design has the advantage of allowing kit 3 to be relatively independent from the potting sleeve 6, and the support point of kit 3 is achieved by setting a retaining ring 5. At the same time, both kit 3 and potting sleeve 6 are designed to be detachable, facilitating component processing and reducing production difficulty. During potting, first, potting is performed at the tail end of cavity I24 of flange I2 to fix the internal optical fiber. Then, a second potting is performed on the potting sleeve 6, thereby achieving a secondary seal at the tail end cavity port of flange I2, further improving high-temperature resistance and sealing performance. The second embodiment, without accompanying drawings, also places the kit 3 at the tail of the flange I2, outside the potting sleeve 6, or on one side of the tail end of the potting sleeve 6. While placing the kit 3 at the tail of the flange I2 in this second embodiment can achieve a floating function through a specific structure, this embodiment has the following drawbacks in order to improve sealing reliability: because this design sets the flange I2 and the potting sleeve 6 as a single unit, it increases the axial dimension of the flange I2, which easily increases the difficulty of component manufacturing. If the kit 3 is used in conjunction with the potting sleeve 6 to achieve the floating function, the size of the kit 3 needs to be increased. This design will result in an increase in both the axial and radial dimensions of the pin component 100. Alternatively, although a connector can be fixedly installed at the tail of the potting sleeve 6, and then assembled with the inner cavity of the kit 3 through the connector to achieve the axial floating function of the pin I1, this will also increase the axial dimension of the pin component 100. Therefore, compared with the second embodiment, the first embodiment is the preferred embodiment of this solution. The structure of the first embodiment is more compact, the parts are easier to process, and the overall structural size of the finished pin component 100 is smaller.

[0108] Example 2

[0109] like Figure 17As shown, this embodiment provides a pin assembly. This design uses a flange I2 as a separate component. The pin assembly 100 includes a pin I1, a flange I2, a kit 3, and an elastic element 4. The flange I2 includes a sealing member 2-1 at the head end and a movable member 2-2 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 coaxially arranged. In this embodiment, the pin I1 is forcibly inserted into the head end of the sealing member 2-1. The sealing member 2-1 has a glass-sintered sealing cavity 2-6 along its central axis. In this embodiment, since glass sintering is used, a section of the sealing cavity 2-6 is used as a sintering cavity. The kit 3 is provided outside the movable member 2-2. The kit 3 forms a through cavity II 31 along its central axis. The tail end of the movable member 2-2 passes through the cavity II 31 and extends outward from the cavity II 31. An elastic element 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. The compression of the elastic element 4 ensures reliable mating between the pin I1 at the head of flange I2 and the mating pin II9. This design guarantees the axial floating function of the pin assembly 100 while also providing good sealing. Flange I2 is designed as a split unit. This design is advantageous because, considering the machining complexity of the slender holes within flange I2, a split design reduces the size and difficulty of component manufacturing. The front sealing element 2-1 provides the sealing function, while the rear movable element 2-2 facilitates the floating function. It should be noted that the installation position of the aforementioned kit 3 can also be configured to mate with the sealing element 2-1. However, this method requires increasing the length of flange I2 and the size of kit 3, which increases the machining difficulty of flange I2 and the maximum external dimensions of the pin assembly.

[0110] In this design, the sealing cavity 2-6 also includes a receiving cavity for installing the ceramic support sleeve I2-4. The diameter of the receiving cavity is larger than the diameter of the glass sintering region, thus enabling the ceramic support sleeve I2-4 to provide good support for the glass sintering body. The function of the ceramic support sleeve I2-4 is to provide thermal insulation and protection for the optical fiber coating. Figure 23-25 As shown, the ceramic support sleeve I2-4 can be installed in several ways. It can be placed at the head end, tail end, or both ends of the sintered glass. During sintering, the ceramic support sleeve I2-4 is first forcibly fixed in the cavity. One end of the optical fiber core is passed through the sintered glass tube I2-3 and the ceramic support sleeve I2-4 into the ferrule I1. Then, glass sintering is performed. During sintering, the glass tube I2-3 is positioned above the ceramic support sleeve I2-4. The advantage of this sintering method is that during sintering, the molten glass melts downwards under its own weight and sinters with the upper surface of the ceramic support sleeve I2-4 below to form a flat bottom surface. More preferably, considering that the pressure in this design is generated from the direction of the ferrule I1, such as... Figure 24As shown in Figure 25, a ceramic support sleeve I2-4 is provided at the head end of the glass tube I2-3. The end of the insert component 100 with the insert I1 is positioned downwards and glass sintering is performed. At this time, the glass tube I2-3 is located on the upper end of the ceramic support sleeve I2-4. During sintering, the molten glass melts and sintersects with the upper surface of the ceramic support sleeve I2-4 under its own gravity to form a flat bottom surface. (Refer to...) Figure 24 The arrow in section 1002 indicates the smooth sintered surface of the sintered glass. Insert components 100 manufactured using this sintering method provide a more reliable seal when pressure is applied from the direction of insert I1. For example... Figure 23 As shown, the pin assembly 100, with the pin I1 mounted at one end, is sintered with glass. Due to the gravity of the molten glass after sintering, the sintered surface formed in the pressure direction is not very smooth. (Refer to...) Figure 23 The arrow in 1001 indicates the uneven sintering surface of the sintered glass. Figure 23 The arrow in 1002 indicates the flat sintered surface of the sintered glass. Because the pressure is generated from the direction of the insert I1, the sealing effect of the insert component 100 in this sintering method is not as reliable as the aforementioned sintering method where the end of the insert component 100 with the insert I1 facing downwards. Furthermore, as... Figure 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 during sintering to be unable to dissipate quickly, which may easily form bubbles and affect the sintering quality. Therefore, in order to ensure the sintering effect, heat dissipation and exhaust holes can be opened on the sealing part 2-1. However, in order to meet the sealing requirements in the later stage, the exhaust holes need to be sealed after sintering.

[0111] In this embodiment, the elastic element 4 is installed in the annular groove on the outer cylindrical surface of the movable element 2-2. The two ends of the groove are respectively the limiting platform I 26 and the boss 28. The function of the boss 28 is to accommodate the sliding fit between the flange I 2 and the inner wall of the cavity II 31 of the kit 3. One end of the elastic element 4 abuts against the limiting platform I 26, and the other end abuts against the limiting platform II 32 circumferentially provided in the cavity II 31. In this design, the elastic element 4 is a spring. Through the spring installed in the pin component 100, when the pin of the head seat is engaged, the flange I 2 and the pin I 1 can float axially. The compression of the spring can effectively ensure the reliability of the pin engagement.

[0112] In this embodiment, in order to limit the movement position of flange I2 relative to kit 3 along the first axial direction, a stop plate I23 is provided on the outer cylindrical surface of flange I2. In this embodiment, the stop plate I23 is on the tail end face of sealing member 2-1. The stop plate I23 cooperates with the head end face of 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.

[0113] As shown in the figure, an annular groove I21 is provided along the circumferential direction on the outer cylindrical surface of the movable part 2-2. A retaining ring 5 is provided inside the annular groove I21. The retaining ring 5 abuts against the end face of the tail end of the kit 3, thereby serving as an axial floating support point for the flange I2 and the pin I1. In this embodiment, a positioning boss 33 is provided in the circumferential direction of the kit 3, which is used to cooperate with the cavity IV201 of the plug housing 200 for installation and fixation to achieve axial positioning.

[0114] As shown in the figure, the movable part 2-2 is provided with a through cavity 2-7 for optical fiber insertion along the central axis. The sintering cavity and the through cavity 2-7 are connected at their ends. 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. The glass tube Ⅰ2-3 in the internal sintering area is heated and sintered by a sintering coil provided in the annular groove Ⅲ2-5.

[0115] In a typical embodiment of this utility model, an annular groove II 22 is further provided on the outer cylindrical surface of the sealing member 2-1. A sealing member I 27 is provided within the annular groove II 22 to achieve a seal between the pin component 100 and the outer housing. The sealing member I 27 is a high-hardness sealing ring. By setting the sealing ring to a precise size, a complete sealing cavity is formed between the pin component 100 and the inner wall of the plug housing 200, thereby effectively achieving a seal between the pin component 100 and the plug housing 200. To achieve a better sintering effect, the wall thickness of the sintering region is designed to be relatively thin. The annular groove II 22 and the sealing member I 27 can be located on one side of the head or tail end of the annular groove III 2-5. Taking the example of placing the annular groove II 22 and the seal I 27 on one side of the head end of the annular groove III 2-5, when pressure enters from the direction of the insert, the outer force-bearing surface 1003 of the annular groove II 22 outside the shell is subjected to force, which may cause deformation of the shell of the sealing component 2-1. This may lead to gaps in the sealing surface between the sintered body inside the sealing component 2-1 and the inner wall of the sintering cavity 211, potentially affecting the sealing performance. If the annular groove II 22 is placed on one side of the head end of the annular groove III 2-5, the force transmission on the pressure-bearing surface (outer pressure-bearing surface 1003) of the sealing shell will affect the sealing performance between the sintered material and the shell of the sintering area. Furthermore, since both the ceramic insert and the ceramic support sleeve are interference fits, the forced installation will affect the sealing surface of the flange shell. Preferably, the annular groove II 22 and the seal I 27 are placed on one side of the tail end of the annular groove III 2-5, separating the sealing area from the forced installation structure. Moreover, its outer pressure-bearing surface 1003 no longer affects the internal sealing sintering area, resulting in better sealing performance.

[0116] Example 3

[0117] This embodiment provides a socket component that 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 on the flange II8 along its central axis. The internal shape of the head end of the cavity III81 is adapted to the external shape of the end of the pin II9, and the two are connected by an interference fit. The cavity III81 is sealed by potting, welding or glass sintering.

[0118] The following description uses the glue-filling sealing method inside cavity Ⅲ81: A glue-filling port is provided at the tail end of cavity Ⅲ81. The glue-filling port communicates with the head end receiving cavity through the connecting cavity, forming a complete cavity Ⅲ81. An annular groove Ⅳ82 is correspondingly provided on the outer cylindrical surface of the outer flange Ⅱ8 of the connecting cavity. The annular groove Ⅳ82 is used to install the sealing element Ⅲ83. The sealing element Ⅲ83 adopts a high-hardness sealing ring. The function of the sealing element Ⅲ83 is to achieve the seal between the socket component 300 and the socket housing 400. By setting the sealing ring of precise size, the socket component 300 and the inner wall of the socket housing 400 form a complete sealed cavity.

[0119] The following description uses a glass sintering sealing method inside cavity III81: A glass sintering chamber is provided in the middle section of cavity III81. A ceramic support sleeve II85 is provided at one or both ends of the glass sintering chamber. An annular groove VI86 is provided on the outer circular surface of the outer flange II8 of the glass sintering chamber. The annular groove VI86 corresponds to the inner and outer surfaces of the glass sintering chamber inside cavity III81. By installing a sintering coil in the annular groove VI86, the sintered glass tube II84 inside is heated and sintered. In this embodiment, the glass sintering method uses a pin-end facing downwards. In this way, the pin end is set downwards for glass sintering. During sintering, the molten glass melts and sintersects with the upper surface of the ceramic support sleeve II85 under its own gravity to form a flat bottom surface. An annular groove IV82 is also provided on the outer cylindrical surface of flange II8. Preferably, the annular groove IV82 is located on one side of the tail end of the annular groove VI86. The annular groove IV82 is used to install the seal III83, which is used to achieve a seal between the socket component 300 and the socket housing 400.

[0120] Example 4

[0121] This embodiment provides a connector plug, including a plug housing 200 and a pin component 100 as described in Embodiment 1 or Embodiment 2 disposed within the plug housing 200. The tail end of the pin component 100 is crimped and fixed within a cavity IV 201 by a crimping member I 204, which abuts against the tail end of a kit 3. The crimping member 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 member I 204 is a hollow crimping threaded head, and the tail end of the pin component 100 is fixed within the cavity IV 201 of the plug housing 200 by the crimping threaded head. The pin component 100 can be used with any other shape of adapter housing, can be disassembled at any time as an independent component, and does not affect its sealing performance.

[0122] Taking the engagement with the pin component 100 of Embodiment 1 as an example, the end of the cavity IV 201 of the plug housing 200 has an internal threaded hole. The threaded head includes a threaded head body, a central through hole is formed along the central axis of the threaded head body, and an external thread that mates with the internal threaded hole is formed on the outer cylindrical surface of the threaded head body. The central through hole of the threaded head body passes through the outside of the potting sleeve 6, and one side of the threaded head body abuts against the end face of the kit 3, thereby fixing the pin component 100 inside the plug housing 200. Taking the engagement with the pin component 100 of Embodiment 2 as an example, the threaded head body directly abuts against the end face of the kit 3, fixing the pin component 100 inside the plug housing 200.

[0123] In this design, the outer shell of the pin component 100 is sealed to the inner wall of the cavity IV201 by sealing element I27. This design achieves the sealing between the pin component 100 and the plug outer shell 200 by designing sealing element I27 on the outer circle of the flange I2 and forming a complete sealing cavity with the inner hole of the plug outer shell 200.

[0124] In this embodiment, an annular groove V202 is provided on the outer cylindrical surface of the plug end of the plug housing 200. At least two annular grooves V202 are arranged along the axial direction of the plug end of the plug housing 200. The annular groove V202 is used to house a sealing element IV203, which seals the inner cavity of the connector plug 500 and the adapter connector socket 600. Taking the example of two annular grooves V202: two sealing rings are designed on the outer circumference of the plug end of the connector plug 500, which cooperate with the socket housing 400 to form a complete sealed cavity. The first sealing ring serves to bear pressure, while the second sealing ring increases the safety factor, mainly to prevent damage to the terminated equipment if the first sealing ring fails. As shown in the figure, in this design, the connector plug is also provided with a plug dust cover 207. When the plug dust cover 207 is screwed into place, it provides a seal. The two sealing rings protect the optical fiber contact from contamination.

[0125] It should be noted that, since the pin components 100 in Embodiments 1 and 2 of this solution are small in size, a high-density node arrangement of the connector can be achieved in a limited space, thereby meeting the requirements for multi-channel transmission.

[0126] Example 5

[0127] This embodiment provides a connector socket, including a socket housing 400 and a socket component 300. The socket component 300 is fixed inside the cavity V401 of the socket housing 400 and secured by a crimping member II 402. A sealing member III 83 is used to seal the socket component 300 and the cavity V401. The tail end of the socket component 300 is crimped and fixed inside the cavity V401 by the crimping member II 402. The crimping member II 402 is a crimped threaded head. The function of the crimping member II 402 is to fix the socket component 300 and ensure that the internal socket component 100 can be disassembled and replaced at any time.

[0128] The socket housing 400 has an internally threaded hole at the tail end of cavity V401. A threaded head, including a threaded head body, has a central through hole along its central axis. An external thread that mates with the internally threaded hole is formed on the outer cylindrical surface of the threaded head body. The threaded head body abuts against the tail end face of flange II8, thereby fixing the socket component 300 inside the socket housing 400. The socket housing 400 is provided with a connecting flange 404. An annular sealing groove is provided on the tail end face of the connecting flange 404 for installing a seal V405. A seal VI406 is provided on the outer cylindrical surface of the housing on one side of the tail end of the connecting flange 404. By providing both axial and radial seals, the connecting flange 404 of the connector socket 600 is fixed to the equipment panel. The socket dust cover 403 uses two O-rings to achieve a seal between the dust cover and the inner cavity of the socket housing 400.

[0129] Taking the socket component 300 sealed by potting as an example, this solution also considers the sealing between the socket component 300 and the socket housing 400. The flange II8 on the outer cylindrical surface of the socket component 300 is provided with an annular groove IV82. The annular groove IV82 is used to install the sealing element III83. The sealing element III83 adopts a high-hardness sealing ring. The function of the sealing element III83 is to achieve the sealing between the socket component and the outer housing. By setting the sealing ring with precise dimensions, the socket component 300 and the inner wall of the socket housing 400 form a complete sealing cavity.

[0130] Taking the socket component 300 sealed by glass sintering as an example, this solution takes into account the sealing between the socket component 300 and the socket housing 400. An annular groove IV82 is provided on the outer cylindrical surface of the flange II8. The annular groove IV82 is used to install the sealing element III83. The sealing element III83 is used to achieve the sealing between the socket component 300 and the outer housing. Preferably, the annular groove IV82 is located on one side of the tail end of the annular groove VI86.

[0131] Example 6

[0132] 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. The connector plug 500 is fixedly connected to the outer shell of the connector socket 600 by a connecting nut 205 on its exterior, which is threaded onto the outer circumference of the socket housing. A stop ring 206 is provided on one side of the connector nut 205 on the plug housing 200 to axially limit its movement. An annular groove V 202 is provided on the outer cylindrical surface of the plug end of the plug housing 200. The annular groove V 202 is used to house a sealing element IV 203. At least two annular grooves V 202 are arranged along the axial direction of the plug end of the plug housing 200. The sealing element IV 203 seals the inner cavity of the connector plug 500 and the adapter connector socket 600. Two sealing rings are designed on the outer circumference of the plug end of the connector 500 to cooperate with the socket housing 400 to form a complete sealed cavity. The first sealing ring bears pressure, and the second sealing ring increases the safety factor to prevent damage to the terminated equipment if the first sealing ring fails.

[0133] In this solution, the sealing methods of the fiber optic connector include: sealing between the plug housing and the socket housing, sealing between the flange and the inner cavity of the housing, sealing between the optical fiber and the ceramic ferrule, and sealing between the optical fiber and the flange. Through the above multi-level sealing, when the plug and socket are inserted, the product can be sealed, enabling signal transmission under high temperature and high pressure environments. When the product is disconnected, it still has the function of open sealing. The multiple sealing protection from the housing to the inside of the optical fiber can protect the internal parts of the installed equipment from damage due to excessive pressure from deep well water.

[0134] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A pin assembly, characterized in that, Includes flange I and kit; The flange I has a through cavity I formed along its central axis. The head end of the cavity I is used to accommodate and fix the end of the pin I. The cavity I is sealed inside. The kit has a through cavity II formed along its central axis. The tail end of the flange I passes through the cavity II and extends out of the cavity II. An elastic element is provided between the flange I and the kit. The elastic element is used to realize the axial floating of the flange I relative to the kit.

2. The pin assembly according to claim 1, characterized in that, The flange I is integrally formed; Alternatively, the flange I includes a sealing element at the head end and a movable element at the tail end, the movable element being axially connected to the sealing element.

3. The pin assembly according to claim 2, characterized in that, The outer cylindrical surface of the flange I is provided with a limiting platform I; the cavity II is formed inside the limiting platform II; one end of the elastic element abuts against the limiting platform I, and the other end abuts against the limiting platform II.

4. The pin assembly according to claim 2, characterized in that, An annular groove I is formed circumferentially on the outer cylindrical surface of flange I. A retaining ring is installed in the annular groove I. The retaining ring abuts against one side of the tail end of the assembly and serves as an axial floating support point for flange I.

5. The pin assembly according to claim 2, characterized in that, An annular groove II is also provided on the outer cylindrical surface of the flange I, and a sealing element I is provided in the annular groove II. The sealing element I is used to achieve a seal between the pin component and the plug housing.

6. The pin assembly according to claim 2, characterized in that, The outer cylindrical surface of the flange I is also provided with a stop plate I, which mates with the head end face of the kit to form a stop and limit the flange I along the first axial direction.

7. The pin assembly according to claim 2, characterized in that: The kit has a positioning boss formed on its outer circumference.

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

9. The pin assembly according to claim 8, characterized in that, The head end face of the glue-filling sleeve has a through hole for the tail end of flange I to pass through. The tail end of flange I passes through the through hole and extends into the glue-filling cavity, where it connects with the sealing glue inside the glue-filling cavity.

10. The pin assembly according to claim 9, characterized in that, A sealing groove is formed on one side of the head end of the perforation, and the sealing groove is used to install the sealing element II.

11. The pin assembly according to claim 10, characterized in that, A gasket is also provided at the tail end of the flange I. The gasket is placed between the glue-filling sleeve and the retaining ring to seal the port of the sealing groove to form a sealing cavity.

12. The pin assembly according to claim 9, characterized in that, At least one annular groove is formed on the outer cylindrical surface of the flange I that extends into the glue-filling cavity. The annular groove is used to connect with the sealing glue in the glue-filling cavity.

13. The pin assembly according to claim 2, characterized in that, An annular groove III is provided on the outer cylindrical surface of the sealing component. The annular groove III corresponds to the inner and outer glass sintering zone inside the cavity I. The annular groove III is used to place the sintered component.

14. The pin assembly according to claim 13, characterized in that, At least one end of the glass sintering zone is provided with a ceramic support sleeve I, which is used to insulate and protect the optical fiber coating layer.

15. The pin assembly according to claim 14, characterized in that, A glass tube I is provided in the glass sintering zone, and a ceramic support sleeve I is provided. 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.

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

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

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

19. The socket component according to claim 18, characterized in that, An annular groove VI is provided on the outer circular surface of the flange II, and the annular groove VI corresponds to the inner and outer surfaces 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 disposed at at least one end of the glass sintering zone within the cavity III. The ceramic support sleeve II is used for heat insulation and protection of the optical fiber coating.

21. A connector plug, characterized in that: Includes the pin component as described in any one of claims 1-16.

22. A connector plug according to claim 21, characterized in that: It also includes a plug housing, and the pin component is fixed inside the cavity IV of the plug housing; the pin component is sealed to the inner wall of the cavity IV by a sealing element I; the plug end of the plug housing is provided with an annular groove V along its outer circumference, and the annular groove V is used to set the sealing element IV, which 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 insert component is crimped and fixed in the cavity IV by crimping member I, and crimping member I abuts against the tail 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's insertion end.

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

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

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

Images