Optical fiber adapter and optical equipment

Abstract

The utility model provides an optical fiber adapter and an optical device, and relates to the technical field of communication fittings, the optical fiber adapter comprises a connecting seat, a fixing member, an adapter member and a limiting member; the connecting seat is provided with a wiring hole, external threads are arranged outside the wiring hole, and the wiring hole is used for connecting an optical fiber patch cord; the fixing piece is provided with a connecting hole, one end of the fixing piece is used for being fixedly connected with an optical fiber interface of an optical device, the fixing piece is inserted into the wiring hole, and the connecting hole and the wiring hole are communicated and coaxial; one end of the adapter is arranged in the wiring hole and is used for connecting an optical fiber patch cord, and the other end of the adapter penetrates out of the connecting hole and is used for connecting an optical fiber interface; the limiting piece is detachably connected with the connecting base and the fixing piece. According to the utility model, the fixing member is fixedly connected with the optical device, the connecting seat is connected with the fixing member, the optical fiber patch cord is connected with the optical device through the adapter, and the limiting member transmits a tensile force to an integral structure where the fixing member and the optical device are fixed, so that the connection between the optical fiber patch cord and the optical device is not easy to fall off and is very stable.

Description

Technical Field

[0001] The utility model relates to the technical field of communication accessories, in particular to an optical fiber adapter and an optical device. Background Art

[0002] With the rapid development of the 5G era, the demand for bandwidth has also increased in both the home and industrial security fields. As one of the most basic components of optical network cabling, fiber optic patch cords are increasingly used in a wide range of scenarios.

[0003] Fiber optic patch cords are used to achieve active connections in optical paths, such as connecting a fiber optic terminal box with a fiber optic transceiver / connecting an optical module, or connecting optical devices to each other. Currently, fiber optic patch cords are mostly connected to optical modules of optical devices by setting connectors at both ends.

[0004] Common connectors such as the SC connector (with a large blue square port and a rectangular shell) and the LC connector (with a small blue square port) are connected to the access port of the optical module by snapping in during use, and can be installed and removed by plugging in and out. However, the plugging and unplugging force of the SC connector and the LC connector is relatively small, and the interface of the optical module is subject to force when the device is in use. When subjected to force, the fiber jumper is easy to fall off the interface of the optical module, and the connection is very unstable. Utility Model Content

[0005] The utility model aims to provide a fiber optic adapter to alleviate the technical problems in the prior art that the plugging and unplugging force of SC connectors and LC connectors is small, the fiber optic jumper is easy to fall off from the interface of the optical module, and the connection is very unstable.

[0006] The utility model provides an optical fiber adapter, comprising a connecting seat, a fixing member, a conversion member and a limiting member; the connecting seat has a wiring hole, the wiring hole is provided with an external thread, and the wiring hole is used to connect an optical fiber jumper; the fixing member has a connecting hole, one end of the fixing member is used to be fixedly connected to the optical fiber interface of an optical device, the fixing member is inserted in the wiring hole, the connecting hole is communicated with the wiring hole and is coaxial; one end of the conversion member is arranged in the wiring hole and is used to connect the optical fiber jumper, and the other end, the other end is passed through the connecting hole and is used to connect the optical fiber interface; the limiting member is detachably connected to the connecting seat and the fixing member respectively.

[0007] The fixing part is fixedly connected to the optical device, and the connection hole of the fixing part is connected to the wiring hole of the connection seat to form a slot body for accommodating the adapter. One end of the adapter passes through the connection hole to connect with the optical fiber interface of the optical device, and the other end is arranged in the slot body formed by the connection hole and the wiring hole. The external thread outside the connection seat is used to connect the optical fiber jumper. The end of the optical fiber jumper enters the wiring hole and abuts against the adapter. The optical fiber jumper realizes data transmission with the optical device through the adapter. The limiter is respectively connected to the connection seat and the fixing part, so that the relative position between the connection seat and the fixing part remains stable.

[0008] Furthermore, a limiting convex edge is provided on the connecting seat; the limiting convex edge extends along the circumference of the connecting seat; the limiting member has a clamping groove, and the clamping groove is engaged with the limiting convex edge.

[0009] The limiting convex edge and the clamping slot form a clamping structure, and the limiting member forms a detachable connection with the connecting seat through the clamping slot. The clamping connection is very convenient, easy to connect, and relatively stable after connection.

[0010] Furthermore, the connecting seat includes a connecting portion and a clamping portion; the external thread is arranged on the connecting portion; the limiting protrusion is arranged on the clamping portion, the diameter of the clamping portion is smaller than that of the connecting portion, and a buffer portion is arranged between the clamping portion and the connecting portion; the width of the clamping groove is less than or equal to the depth of the fixing member inserted into the wiring hole.

[0011] The structure with a slightly wider width of the slot can facilitate the coordinated installation of the slot and the limiting ridge, and the limiting ridge is easy to insert into the slot. The limiting piece can slide on the buffer portion. When the depth of the fixing piece inserted into the wiring hole is greater than or equal to the width of the slot, it can prevent the fixing piece from falling off from the wiring hole when the limiting piece slides to the extreme position.

[0012] Furthermore, the limiting member is a limiting shell; the limiting shell has a containing space, the containing space is used to hold the optical fiber interface, the fixing member and the clamping part, and the clamping slot is arranged in the containing space.

[0013] The limiting shell is buckled outside the optical fiber interface, fixings and the clamping part. The optical fiber interface fixings and the clamping part are both located in the accommodating space. The edge of the limiting shell is located in the buffer part. The shell can protect the various components in the accommodating space to avoid being exposed to the outside and oxidizing too quickly or being damaged or broken due to collision.

[0014] Furthermore, the cross-section of the limiting protrusion is rectangular.

[0015] Furthermore, the optical fiber adapter also includes a filling piece; the filling piece is arranged on the side wall of the adapter.

[0016] The filler can fill the gap between the adapter and the connection hole, and between the adapter and the wiring hole, so that the adapter is not easy to move in the connection hole and the wiring hole and cause misalignment, resulting in the adapter being unable to achieve effective data connection with the optical device.

[0017] Furthermore, the filling piece is an assembly tube; a first limiting portion is provided at one end of the wiring hole away from the fixing piece, and a second limiting portion is provided at one side of the connecting hole away from the wiring hole; two ends of the assembly tube are respectively abutted against the first limiting portion and the second limiting portion; and the adapter is inserted into the assembly tube.

[0018] Furthermore, there is interference fit between the assembly cylinder and the adapter and the connecting seat, between the fixing member and the wiring hole, between the assembly cylinder and the connecting hole, and between the assembly cylinder and the wiring hole.

[0019] Furthermore, the adapter and the assembly tube are both made of ceramic material.

[0020] The utility model also aims to provide an optical device, comprising an optical fiber connecting part and an optical fiber adapter; the optical fiber connecting part has an optical fiber interface; one end of the fixing part of the optical fiber adapter is welded to the optical fiber connecting part, and the other end is plugged into the connecting seat of the optical fiber adapter, and the connecting hole of the fixing part is connected to the optical fiber interface.

[0021] Beneficial effects:

[0022] The optical fiber adapter provided by the utility model comprises a connecting seat, a fixing part, a conversion part and a limiting part; the connecting seat has a wiring hole, an external thread is arranged outside the wiring hole, and the wiring hole is used to connect the optical fiber jumper; the fixing part has a connecting hole, one end of the fixing part is used to be fixedly connected with the optical fiber interface of the optical device, the fixing part is inserted in the wiring hole, and the connecting hole is communicated with the wiring hole and is coaxial; one end of the conversion part is arranged in the wiring hole and is used to connect the optical fiber jumper, and the other end, the other end is passed through the connecting hole and is used to connect the optical fiber interface; the limiting part is detachably connected to the connecting seat and the fixing part respectively.

[0023] Specifically, the utility model is fixedly connected to the optical device through a fixing piece. After the connecting seat is connected to the fixing piece, the connecting hole of the fixing piece is connected to the wiring hole of the connecting seat to form a groove body for accommodating the adapter. One end of the adapter is passed through the connecting hole and connected to the optical fiber interface of the optical device, and the other end is arranged in the groove body formed by the connecting hole and the wiring hole. The optical fiber jumper is inserted into the connecting seat by threaded cooperation. The end of the optical fiber jumper abuts against the adapter. The optical fiber jumper realizes data transmission with the optical device through the adapter. After the connection, the limiter is respectively connected to the connecting seat and the fixing piece to keep the relative position between the connecting seat and the fixing piece stable. When the optical fiber jumper or the connecting seat is subjected to a pulling force away from the direction of the optical device, the limiter transmits the pulling force to the overall structure formed by the fixing piece and the optical device being fixedly connected, which can prevent the optical fiber jumper and the connecting seat from being pulled out due to the pulling force. The connecting seat and the optical fiber jumper are not easy to fall off from the optical fiber interface of the optical device due to the pulling force, and the connection is very stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A schematic diagram of the axial structure of the optical fiber adapter provided by an embodiment of the utility model;

[0026] Figure 2 A schematic diagram of the split structure of the optical fiber adapter provided in an embodiment of the utility model;

[0027] Figure 3 A schematic diagram of the main structure of the optical fiber adapter provided by an embodiment of the utility model;

[0028] Figure 4 for Figure 3 Sectional view at A-A in the middle.

[0029] icon:

[0030] 100 - connection seat; 110 - wiring hole; 111 - external thread; 120 - limiting convex edge; 130 - first limiting portion;

[0031] 200 - fixing member; 210 - connecting hole; 220 - second limiting portion;

[0032] 300 - adapter;

[0033] 400 - limiter; 410 - slot; 420 - accommodation space;

[0034] 500 - Assembly cylinder. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0038] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0039] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0040] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] The present invention is further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0042] See also Figures 1 to 4 The optical fiber adapter provided in this embodiment includes a connection seat 100, a fixing member 200, a conversion member 300 and a limiting member 400. The connection seat 100 has a wiring hole 110, and the wiring hole 110 is provided with an external thread 111, and the wiring hole 110 is used to connect the optical fiber jumper. The fixing member 200 has a connection hole 210, one end of the fixing member 200 is used to be fixedly connected to the optical fiber interface of the optical device, the fixing member 200 is inserted into the wiring hole 110, and the connection hole 210 is connected and coaxial with the wiring hole 110. One end of the conversion member 300 is arranged in the wiring hole 110 and is used to connect the optical fiber jumper, and the other end, the other end is passed through the connection hole 210 and is used to connect the optical fiber interface. The limiting member 400 is detachably connected to the connection seat 100 and the fixing member 200 respectively.

[0043] Among them, the fixing member 200 is fixedly connected to the optical device, and the connecting hole 210 of the fixing member 200 is connected with the wiring hole 110 of the connecting seat 100 to form a groove body for accommodating the adapter 300. One end of the adapter 300 passes through the connecting hole 210 and is connected to the optical fiber interface of the optical device, and the other end is arranged in the groove body formed by the connecting hole 210 and the wiring hole 110.

[0044] The external thread 111 on the outside of the connecting seat 100 is used to connect the optical fiber jumper. The end of the optical fiber jumper enters the wiring hole 110 and abuts against the adapter 300. The optical fiber jumper realizes data transmission with the optical device through the adapter 300. The limiter 400 is respectively connected to the connecting seat 100 and the fixing member 200, so that the relative position between the connecting seat 100 and the fixing member 200 remains stable.

[0045] Furthermore, when the fiber optic jumper or the connection seat 100 is subjected to a pulling force in the direction away from the optical device, the limit member 400 transmits the pulling force to the overall structure formed by the fixing member 200 and the optical device, thereby preventing the fiber optic jumper and the connection seat 100 from being pulled out due to the pulling force. The connection seat 100 and the fiber optic jumper are not easily detached from the optical fiber interface of the optical device due to the pulling force, and the connection is very stable.

[0046] In addition, to facilitate the insertion of the optical fiber jumper into the connection seat 100, a long hole is provided on the side wall of the wiring hole 110 at one end away from the fixing member 200 so that the end of the connection seat 100 can be slightly deformed when the optical fiber jumper is inserted.

[0047] In this embodiment, a limiting convex edge 120 is provided on the connection seat 100. The limiting convex edge 120 extends along the circumference of the connection seat 100. The limiting member 400 has a clamping groove 410, and the clamping groove 410 is engaged with the limiting convex edge 120.

[0048] The limiting protrusion 120 and the clamping groove 410 form a clamping structure. In this embodiment, one end of the limiting member 400 forms a detachable connection with the connecting seat 100 through the clamping groove 410, and the other end is connected to the connecting structure of the fixing member 200 and the optical device, thereby realizing the force transmission between the connecting seat 100 and the optical device. The clamping connection between the clamping groove 410 and the limiting protrusion 120 is very convenient, easy to connect, and relatively stable after connection.

[0049] In this embodiment, the connection seat 100 includes a connection portion and a clamping portion. The external thread 111 is provided on the connection portion. The limiting convex edge 120 is provided on the clamping portion, the diameter of the clamping portion is smaller than the connection portion, and a buffer portion is provided between the clamping portion and the connection portion. The width of the clamping groove 410 is less than or equal to the depth of the fixing member 200 inserted into the wiring hole 110.

[0050] Specifically, the slightly wider width of the slot 410 facilitates the matching installation of the slot 410 and the limiting ridge 120, and facilitates the insertion of the limiting ridge 120 into the slot 410. The limiting member 400 can slide on the buffer portion, and when the depth of the fixing member 200 inserted into the wiring hole 110 is greater than or equal to the width of the slot 410, the fixing member 200 can be prevented from falling off from the wiring hole 110 when the limiting member 400 slides to the limit position.

[0051] In this embodiment, the limiting member 400 is a limiting housing having a containing space 420 for containing the optical fiber interface, the fixing member 200 and the clamping portion, and the clamping slot 410 is disposed in the containing space 420 .

[0052] The limiting shell is buckled outside the optical fiber interface, the fixing part 200 and the clamping part. The optical fiber interface fixing part 200 and the clamping part are both located in the accommodating space 420. The edge of the limiting shell is located in the buffer part. The shell can protect the various components in the accommodating space 420 to prevent them from being exposed to the outside and oxidizing too quickly or being damaged or broken due to collision.

[0053] Specifically, the position-limiting housing in this embodiment includes two sub-housings symmetrically arranged with the axis of the wiring hole 110 and the connecting hole 210 as the axis of symmetry. During installation, the two sub-housings are respectively covered on the surfaces of the optical fiber interface, the fixing member 200 and the clamping portion from both sides of the fixing member 200 and the connecting seat 100, and the two sub-housings are connected to form a complete position-limiting housing in a detachable manner. In this embodiment, the two sub-housings are detachably connected by a snap-fit ​​connection.

[0054] In this embodiment, the cross section of the limiting protrusion 120 is rectangular.

[0055] Correspondingly, the cross-section of the slot 410 in this embodiment is also rectangular. The rectangular structure of the limiting protrusion 120 and the slot 410 can prevent the limiting shell from idling, and when the limiting shell rotates, it can drive the connecting seat 100 to rotate together.

[0056] In this embodiment, the optical fiber adapter further includes a filling piece, which is disposed on the side wall of the adapter 300 .

[0057] The filler can fill the gaps between the adapter 300 and the connection hole 210, and between the adapter 300 and the wiring hole 110, so that the adapter 300 is not easily moved in the connection hole 210 and the wiring hole 110 and caused to be misaligned, resulting in the adapter 300 being unable to achieve effective data connection with the optical device.

[0058] Specifically, the filling member in this embodiment is an assembly tube 500. A first limiting portion 130 is provided at one end of the wiring hole 110 away from the fixing member 200, and a second limiting portion 220 is provided at one side of the connecting hole 210 away from the wiring hole 110. Both ends of the assembly tube 500 are respectively in contact with the first limiting portion 130 and the second limiting portion 220. The adapter 300 is inserted into the assembly tube 500.

[0059] Among them, the first limiting portion 130 and the second limiting portion 220 in this embodiment are respectively a boss in the wiring hole 110 and a boss in the connecting hole 210, and the two ends of the assembly cylinder 500 are respectively abutted against the side walls of the two bosses to achieve the limitation of the assembly cylinder 500.

[0060] In this embodiment, interference fit is formed between the assembly cylinder 500 and the adapter 300 and the connecting seat 100 , between the fixing member 200 and the wiring hole 110 , between the assembly cylinder 500 and the connecting hole 210 , and between the assembly cylinder 500 and the wiring hole 110 .

[0061] The interference fit assembly method can make the structure among the assembly tube 500, the adapter 300, the fixing member 200 and the connecting seat 100 more compact, thereby further improving the structural strength of the optical fiber adapter and avoiding the phenomenon of components falling off and separating during use.

[0062] It should be noted that, during installation, the assembly cylinder 500 is first inserted into the wiring hole 110 until the assembly cylinder 500 abuts against the side wall of the boss in the wiring hole 110, and then the fixing member 200 is welded to the optical fiber interface of the optical device, so that the connection hole 210 on the fixing member 200 is connected to the optical fiber interface. Then, the adapter 300 is inserted into the connection hole 210, and the assembly cylinder 500 and the connection seat 100 are plugged and connected with the fixing member 200.

[0063] In order to prevent the adapter 300 from extending too far beyond the connection hole 210, the end of the adapter 300 in this embodiment is a tapered structure, which can extend out of the connection hole 210, and the thicker section of the adapter 300 is placed in the connection hole 210 to prevent the adapter 300 from extending too far and being unable to connect with the optical fiber jumper.

[0064] In this embodiment, the adapter 300 and the assembly tube 500 are both made of ceramic.

[0065] Ceramic material has high hardness, excellent wear resistance and oxidation resistance, and is very suitable for use as a data transmission material.

[0066] The optical device provided in the embodiment includes an optical fiber connecting part and an optical fiber adapter.

[0067] The optical fiber connection part has an optical fiber interface. One end of the optical fiber adapter fixing piece 200 is welded to the optical fiber connection part, and the other end is plugged into the optical fiber adapter connection seat 100, and the connection hole 210 of the fixing piece 200 is connected to the optical fiber interface.

[0068] The fixing member 200 in the optical fiber adapter is fixedly connected to the optical device, and the connection hole 210 of the fixing member 200 is connected to the wiring hole 110 of the connection seat 100 to form a groove body for accommodating the adapter 300. One end of the adapter 300 in the optical fiber adapter passes through the connection hole 210 to connect with the optical fiber interface of the optical device, and the other end is arranged in the groove body formed by the connection hole 210 and the wiring hole 110. In addition, the external thread 111 on the outside of the connection seat 100 in the optical fiber adapter is used to connect the optical fiber jumper. The end of the optical fiber jumper enters the wiring hole 110 and abuts against the adapter 300. The optical fiber jumper realizes data transmission with the optical device through the adapter 300. The limiter 400 is respectively connected to the connection seat 100 and the fixing member 200, so that the relative position between the connection seat 100 and the fixing member 200 remains stable.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit them. Although the utility model has been described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features can be replaced by equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. An optical fiber adapter, characterized in that: include: A connecting seat (100), a fixing member (200), an adapter (300) and a limiting member (400); The connection seat (100) has a wiring hole (110), the wiring hole (110) is provided with an external thread (111), and the wiring hole (110) is used to connect an optical fiber jumper; The fixing member (200) has a connection hole (210), one end of the fixing member (200) is used for fixed connection with the optical fiber interface of the optical device, the fixing member (200) is inserted into the wiring hole (110), and the connection hole (210) is connected to the wiring hole (110) and is coaxial; One end of the adapter (300) is arranged in the wiring hole (110) and is used to connect the optical fiber jumper, and the other end passes through the connection hole (210) and is used to connect the optical fiber interface; The limiting member (400) is detachably connected to the connecting seat (100) and the fixing member (200) respectively.

2. The optical fiber adapter according to claim 1, characterized in that: The connection seat (100) is provided with a limited position convex edge (120); The limiting protrusion (120) extends along the circumference of the connecting seat (100); The limiting member (400) has a clamping groove (410), and the clamping groove (410) is engaged with the limiting convex edge (120).

3. The optical fiber adapter according to claim 2, characterized in that: The connecting seat (100) comprises a connecting portion and a clamping portion; The external thread (111) is provided on the connecting portion; The limiting convex edge (120) is arranged on the clamping portion, the diameter of the clamping portion is smaller than the connecting portion, and a buffer portion is arranged between the clamping portion and the connecting portion; The width of the card slot (410) is less than or equal to the depth of the fixing member (200) inserted into the wiring hole (110).

4. The optical fiber adapter according to claim 3, characterized in that: The limiting member (400) is a limiting housing; The limiting housing has a containing space (420), the containing space (420) is used to contain the optical fiber interface, the fixing member (200) and the clamping portion, and the clamping slot (410) is arranged in the containing space (420).

5. The optical fiber adapter according to claim 2, characterized in that: The cross section of the limiting protrusion (120) is rectangular.

6. The optical fiber adapter according to claim 1, characterized in that: The optical fiber adapter also includes a filling piece; The filling piece is arranged on the side wall of the adapter (300).

7. The optical fiber adapter according to claim 6, characterized in that: The filling piece is an assembly cylinder (500); A first limiting portion (130) is provided at one end of the wiring hole (110) away from the fixing member (200), and a second limiting portion (220) is provided at one side of the connecting hole (210) away from the wiring hole (110); Two ends of the assembly tube (500) are respectively in contact with the first limiting portion (130) and the second limiting portion (220); The adapter (300) is inserted into the assembly tube (500).

8. The optical fiber adapter according to claim 7, characterized in that: An interference fit is formed between the assembly cylinder (500) and the adapter (300) and the connection seat (100), between the fixing member (200) and the wiring hole (110), between the assembly cylinder (500) and the connection hole (210), and between the assembly cylinder (500) and the wiring hole (110).

9. The optical fiber adapter according to claim 7, characterized in that: The adapter (300) and the assembly tube (500) are both made of ceramic material.

10. An optical device, characterized in that: comprising an optical fiber connecting portion and an optical fiber adapter as claimed in any one of claims 1 to 9; The optical fiber connection portion has an optical fiber interface; One end of the fixing piece (200) of the optical fiber adapter is welded to the optical fiber connection portion, and the other end is plugged into the connection seat (100) of the optical fiber adapter, and the connection hole (210) of the fixing piece (200) is in communication with the optical fiber interface.

Images