WO2024119633A1

WO2024119633A1 - Optical fiber transfer structure

Info

Publication number: WO2024119633A1
Application number: PCT/CN2023/078694
Authority: WO
Inventors: 江春才; 江兵来; 何明科; 潘树斌; 刘正凡; 庞毅; 钟富德; 康艺; 李宏博; 李卫平; 王卫东; 王桃红
Original assignee: 浙江优亿医疗器械股份有限公司
Priority date: 2022-12-06
Filing date: 2023-02-28
Publication date: 2024-06-13
Also published as: CN116224566A

Abstract

An optical fiber transfer structure, comprising a light source main unit (1). The light source main unit (1) comprises a snap-fit annular base (5) and a laser optical fiber base (8), an optical fiber guide-out end face (4) being positioned on the laser optical fiber base (8), the snap-fit annular base (5) being provided with a through hole (6), and an optical fiber cap (7) being fixedly provided on the end face of one side of the snap-fit annular base (5). The laser optical fiber base (8) penetrates through the snap-fit annular base (5) and the optical fiber cap (7) along the through hole (6); a flange (9) supporting the inner wall of the through hole (6) is formed on the side wall of the laser optical fiber base (8); and an elastic limiting member is provided between the flange (9) and the optical fiber cap (7). Under the action of an external force, the laser optical fiber base (8) moves along the through hole (6) towards the optical fiber cap (7) and presses the elastic limiting member, and under the action of the elastic force of the elastic limiting member, the laser optical fiber base (8) moves reversely along the through hole (6) and is tightly attached to a force applying end, so as to shorten the distance between the optical fiber guide-out end face (4) and an optical fiber receiving end face (3) on the force applying end, and to allow the end faces on the two sides to be stabilized on a same axial horizontal plane, thus preventing transverse misalignment.

Description

Optical fiber transmission structure

Technical Field

The present invention relates to the technical field of medical equipment, and in particular to an optical fiber transmission structure.

Background technique

An endoscope is a detection instrument that integrates traditional optics, ergonomics, precision machinery, modern electronics, mathematics, and software. An endoscope also has components such as image sensors, optical lenses, lighting sources, and mechanical devices. It can enter the stomach through the mouth or enter the body through other natural channels. After entering the human body, it needs to be illuminated by a light source. Gastroenteroscopes usually use an external light source host. The gastroenteroscope and the light source host are connected through an optical fiber transmission component. The existing optical fiber transmission connectors will cause some losses during connection, resulting in poor contact or failure to connect. The loss caused by optical fiber connection is related to many factors, such as the optical fiber core diameter, the relative position of the optical fiber, the end face state, etc.

Summary of the invention

In order to solve the above problems, the purpose of the present invention is to provide a fiber optic transmission structure that can automatically adjust the gap between the connection end faces during plugging, so that the fiber end faces on both sides are stably in the same axial horizontal plane, reducing transmission loss.

In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: it includes a light source host, characterized in that: the light source host includes a retaining ring seat and a laser fiber seat, the laser fiber seat is positioned with an optical fiber lead-out end face, the retaining ring seat has a through hole, and an optical fiber cover is fixedly provided on one side end face of the retaining ring seat; the laser fiber seat is penetrated along the through hole on the retaining ring seat and the optical fiber cover, the side wall of the laser fiber seat is constructed with a flange supported on the inner wall of the through hole, and an elastic limiter is provided between the flange and the optical fiber cover; the laser fiber seat can move along the through hole toward the optical fiber cover and squeeze the elastic limiter under the action of external force, and under the elastic force of the elastic limiter, the laser fiber seat moves in the opposite direction along the through hole and presses against the force-applying end to reduce the distance between the optical fiber lead-out end face and the optical fiber receiving end face on the force-applying end, and stabilizes the end faces on both sides on the same axial horizontal plane to prevent lateral dislocation.

In the above technical solution, an elastic limiter is arranged between the laser fiber holder and the fiber cover. When the laser fiber holder is subjected to force, it can move relative to the fiber cover in the perforation, so that the elastic limiter is compressed between the flange and the fiber cover. Under the elastic reaction of the elastic limiter, the laser fiber holder moves in the opposite direction and sticks to the force-applying end, thereby effectively adjusting (reducing) the distance between the fiber lead-out end face and the fiber receiving end face, and stabilizing the two on the same axial horizontal line to prevent lateral misalignment, thus solving the problem of frequent poor contact and slight misalignment between the fiber lead-out end face and the fiber receiving end face, reducing transmission loss, and ensuring that the gastroscope is in a stable use state. It should be noted here that when the force-applying end interacts with the laser fiber holder, the fiber lead-out end face and the fiber receiving end face are on the same axial horizontal plane.

Preferably, the flange is formed on the end of the laser fiber holder opposite to the fiber cover, and the elastic stopper is a spring sleeved on the laser fiber holder. In this technical solution, the flange is formed on the end of the laser fiber holder, which makes the elastic stopper have a large stroke, has more elastic force on the laser fiber holder, and can increase the contact surface area between the laser fiber holder and the fiber connector for easy adhesion. The elastic stopper is a spring, which is easy to install, can effectively prevent disengagement, and is easy to install. In addition, the elastic stopper can also be a tension spring or a sponge set on the fiber cover.

Preferably, the flange at least partially extends out of the perforation to form a touch switch that squeezes the elastic limiter. In this technical solution, if the flange is just flush with the end face of the perforation, it is difficult for the force-applying end to form an effective squeezing effect when abutting, so the flange partially extends outward, and pushing the extended part can not only deform the spring, but also increase the deformation distance of the spring and increase the area of the abutting surface between the two.

Preferably, a limit assembly is provided on the laser fiber holder and on the outside of the side where the fiber cover is located, and the limit assembly can keep the laser fiber holder relatively locked with respect to the fiber cover. In this technical solution, since the laser fiber holder moves in the direction toward the fiber connector under the action of elastic force, the laser fiber holder is easy to loosen if there is no limit force relative to the elastic force. Therefore, a limit assembly is also required on the laser fiber holder to keep the laser fiber holder relatively locked with respect to the fiber cover.

Preferably, the position limiting assembly includes a fiber nut and a thread formed on the side wall of the laser fiber holder, and the fiber nut cooperates with the thread so that the fiber nut can press the outer end surface of the fiber cover. In this technical solution, the position limiting assembly is both a thread and a nut, and the nut is screwed onto the laser fiber holder and is also a part of the laser fiber holder, so when the nut abuts against the fiber cover, the laser fiber holder and the fiber cover remain relatively locked.

It should be noted here that the limiting component can also be a connection method between a buckle and a slot set on the laser fiber holder, etc.

An optical fiber connector part can be plugged into any of the optical fiber transmission structures described above, characterized in that: the optical fiber connector part is positioned with an optical fiber receiving end face arranged flush with the optical fiber lead-out end face along the same axial direction; one of the clamping ring seat and the optical fiber connector part is formed with a clamping groove, and the other is provided with a clamping joint that is clamped with the clamping groove. In this technical solution, the optical fiber connector part is docked with the light source host to realize the effective transmission of the optical fiber. The optical fiber connector part can be abutted with the laser fiber seat. The above solution adopts the clamping ring seat and the optical fiber connector part to be clamped, specifically, one of them has a clamping groove and the other has a clamping joint.

Preferably, a snap-in groove is defined on one side of the snap-in seat facing the optical fiber connector, and a snap-in connector is provided at the front end of the optical fiber connector; an annular groove is constructed on the inner wall of the snap-in groove, and a metal ring is provided on the outer wall of the snap-in connector to snap-in and lock with the annular groove. In this technical solution, the snap-in connector is provided on the optical fiber connector, which is convenient for the user to calibrate the position when plugging. The metal ring provided on the snap-in connector snaps in with the annular groove on the snap-in groove so that the snap-in connector and the snap-in seat remain locked.

Preferably, the end of the laser fiber holder that abuts against the optical fiber connector is inwardly constructed with an abutment channel, the side wall of the abutment channel is an inclined surface, and a laser lens barrel is fixedly penetrated on the clamping connector, the end of the laser lens barrel extends out of the end face of the clamping connector and forms a convex ring platform, and the convex ring platform abuts and cooperates with the side wall of the abutment channel. In this technical solution, the convex ring platform on the laser lens barrel cooperates with the inclined surface on the laser fiber holder, so that the laser lens barrel and the laser fiber holder remain stable in the axial level, so that the optical fiber output end face and the optical fiber receiving end face are stable on the same axial horizontal plane.

Preferably, the laser lens barrel and the laser fiber holder are respectively provided with a first installation channel and a second installation channel which are connected to the abutment channel; a first protective glass, a first collimating lens, a first spacer and a first optical fiber connector are fixed from the outside to the inside in the first installation channel; a receiving optical fiber is fixed on the first optical fiber connector, and the optical fiber receiving end face is the front end face of the first optical fiber connector; a second protective glass, a second collimating lens, a second spacer and a second optical fiber connector are fixed from the outside to the inside in the second installation channel; an output optical fiber is fixed on the second optical fiber connector, and the optical fiber output end face is the second optical fiber connector.

In the above technical solution, the protective glass is arranged at the front end of the channels on both sides to protect the inner parts, and the different sizes of the spacers are used to adjust the distances from the optical fiber output end face and the optical fiber receiving end face to the collimating lens.

Preferably, the end of the laser fiber holder that fixes the second optical fiber connector defines an adhesive groove inwardly, and the adhesive groove is coated with adhesive to be attached and fixed to the second optical fiber connector; the optical fiber connector part also includes a handle fixed to the card connector. In this technical solution, the adhesive further stabilizes the second optical fiber connector and is arranged on the laser fiber holder.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of a three-dimensional structure of an optical fiber transmission structure.

FIG. 2 is a schematic diagram of a three-dimensional structure of an optical fiber transmission structure from another viewing angle.

FIG. 3 is a schematic cross-sectional view of an optical fiber connector.

FIG. 4 is a cross-sectional schematic diagram of a light source host.

FIG. 5 is a schematic diagram of an assembly of an optical fiber transmission structure.

FIG. 6 is an enlarged view of point A in FIG. 5 .

FIG. 7 is a schematic diagram of the assembly of the laser fiber holder and the spring.

FIG8 is a schematic diagram of the three-dimensional structure of the optical fiber connector and the retaining ring seat docking.

FIG. 9 is a schematic diagram of the assembly of the light source bracket and the retaining ring seat.

FIG. 10 is a schematic diagram of the three-dimensional structure of the optical fiber connector.

Implementation

Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more, unless otherwise clearly specified.

In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection 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.

In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

Example

An optical fiber transmission structure as shown in Figures 1 to 2 and Figures 4 to 8 includes a light source host 1, the light source host 1 includes a retaining ring seat 5 and a laser fiber seat 8, an optical fiber lead-out end face 4 is positioned on the laser fiber seat 8, the retaining ring seat has a through hole 6, and an optical fiber cover 7 is fixedly provided on one side end face of the retaining ring seat 5; the laser fiber seat 8 is penetrated on the retaining ring seat 5 and the optical fiber cover 7 along the through hole 6, the side wall of the laser fiber seat 8 is constructed with a flange 9 supported on the inner wall of the through hole 6, and an elastic limiter is provided between the flange 9 and the optical fiber cover 7; the laser fiber seat 8 can move along the through hole 6 toward the optical fiber cover 7 and squeeze the elastic limiter under the action of external force, and under the elastic force of the elastic limiter, the laser fiber seat 8 moves in the opposite direction along the through hole 6 and presses against the force-applying end to reduce the distance between the optical fiber lead-out end face 4 and the optical fiber receiving end face 3 on the force-applying end, and stabilize the end faces on both sides on the same axial horizontal plane to prevent lateral dislocation.

In the above technical solution, an elastic limiter is arranged between the laser fiber holder 8 and the fiber cover 7. When the laser fiber holder 8 is subjected to force, it can move relative to the fiber cover 7 in the perforation 6, so that the elastic limiter is compressed between the flange 9 and the fiber cover 7. Under the elastic reaction of the elastic limiter, the laser fiber holder 8 moves in the opposite direction and sticks to the force-applying end, thereby effectively adjusting (reducing) the distance between the fiber lead-out end face 4 and the fiber receiving end face 3, so that the two are stabilized on the same axial horizontal line, solving the problem of frequent poor contact and slight misalignment between the fiber lead-out end face 4 and the fiber receiving end face 3, reducing transmission loss, and ensuring that the gastroscope is in a stable use state. It should be noted here that when the force-applying end interacts with the laser fiber holder 8, the fiber lead-out end face and the fiber receiving end face are on the same axial horizontal plane.

Furthermore, the flange 9 is formed on one end of the laser fiber holder 8 relative to the fiber cover 7, and the elastic stopper is a spring 11 sleeved on the laser fiber holder 8. In this technical solution, the flange 9 is formed on the end of the laser fiber holder 8, which makes the elastic stopper have a large stroke, has more elastic force on the laser fiber holder 8, and can increase the contact surface area between the laser fiber holder 8 and the fiber connector 2, so as to facilitate close contact. The elastic stopper is a spring, which is easy to install, can effectively prevent disengagement, and is easy to install. In addition, the elastic stopper can also be a tension spring or a sponge provided on the fiber cover.

Furthermore, the flange 9 at least partially extends out of the through hole 6 to form a touch switch that squeezes the elastic limiter. In this technical solution, if the flange 9 is just flush with the end surface of the through hole 6, it is difficult for the force-applying end to form an effective squeezing effect when abutting, so the flange 9 partially extends outward, and pushing the extended part can not only deform the spring 11, but also increase the deformation distance of the spring 11 and increase the area of the two abutting surfaces.

Furthermore, a limiting assembly is provided on the laser fiber holder 8 and on the outside of the side where the fiber cover 7 is located, and the limiting assembly can keep the laser fiber holder 8 relatively locked relative to the fiber cover 7. In this technical solution, since the laser fiber holder 8 moves in the direction toward the fiber connector 2 under the action of the elastic force, the laser fiber holder 8 is easy to loosen if there is no limiting force relative to the elastic force. Therefore, a limiting assembly is also required on the laser fiber holder 8 to keep the laser fiber holder 8 relatively locked relative to the fiber cover 7.

Furthermore, the position limiting assembly includes a fiber nut 12 and a thread 13 formed on the side wall of the laser fiber holder 8, and the fiber nut 12 cooperates with the thread 13 so that the fiber nut 12 can press the outer end surface of the fiber cover 7. In this technical solution, the position limiting assembly is both the thread 13 and the nut, and the nut is screwed on the laser fiber holder 8 and is also a part of the laser fiber holder 8. Therefore, when the nut abuts against the fiber cover 7, the laser fiber holder 8 and the fiber cover 7 remain relatively locked.

It should be noted here that the limiting component can also be a connection method such as a buckle and a slot set on the laser fiber holder.

Example

A fiber connector as shown in Figures 1 to 3 and 8 to 10 can be plugged into the fiber transmission structure in the first embodiment. The fiber connector 2 is provided with a fiber receiving end face that is flush with the fiber lead-out end face along the same axial direction; one of the clamping ring seat 5 and the fiber connector 2 is formed with a clamping groove 14, and the other is provided with a clamping joint 15 that is clamped with the clamping groove 14. In this technical solution, the fiber connector 2 is docked with the light source host 1 to achieve effective transmission of the optical fiber. The fiber connector 2 can be abutted with the laser fiber seat 8. The above solution adopts the clamping ring seat 5 and the fiber connector 2 to be clamped, specifically, one of them has a clamping groove 14, and the other has a clamping joint 15.

Furthermore, a snap-in groove 14 is defined on one side of the snap-in seat 5 facing the optical fiber connector 2, and a snap-in connector 15 is provided at the front end of the optical fiber connector 2; an annular groove 16 is constructed on the inner wall of the snap-in groove 14, and a metal ring 18 is provided on the outer wall of the snap-in connector 15 to snap-in and lock with the annular groove 16. In this technical solution, the snap-in connector 15 is provided on the optical fiber connector 2, which is convenient for the user to calibrate the position when plugging. The metal ring 18 provided on the snap-in connector 15 is snap-fitted with the annular groove 16 on the snap-in groove 14 so that the snap-in connector 15 and the snap-in seat 5 remain locked.

Furthermore, an abutment channel 20 is constructed inwardly at one end of the laser fiber holder 8 abutting against the optical fiber connector 2, and the side wall of the abutment channel 20 is an inclined surface. A laser lens barrel 21 is fixedly penetrated on the clamp connector 15, and the end of the laser lens barrel 21 extends out of the end surface of the clamp connector 15 and forms a convex ring platform 22, and the convex ring platform 22 abuts and cooperates with the side wall of the abutment channel 20. In this technical solution, the convex ring platform on the laser lens barrel cooperates with the inclined surface on the laser fiber holder, so that the laser lens barrel and the laser fiber holder remain stable in the axial level, so that the optical fiber lead-out end face and the optical fiber receiving end face are stable on the same axial horizontal plane.

Furthermore, the laser lens barrel 21 and the laser fiber holder 8 are respectively provided with a first installation channel and a second installation channel which are communicated with the abutment channel 20. A first protective glass 25, a first collimating lens 26, a first spacer ring 27 and a first optical fiber connector 28 are fixed from the outside to the inside in the first installation channel. A receiving optical fiber 33 is fixed on the first optical fiber connector 28, and the optical fiber receiving end face 3 is the front end face of the first optical fiber connector 28. A second protective glass 29, a second collimating lens 30, a second spacer ring 31 and a second optical fiber connector 32 are fixed from the outside to the inside in the second installation channel. An output optical fiber 34 is fixed on the second optical fiber connector 32, and the optical fiber output end face 4 is the front end face of the second optical fiber connector 32.

Furthermore, the end of the laser fiber holder 8 on which the second optical fiber connector 32 is fixed defines an adhesive groove 35 inwardly, and adhesive 36 is applied in the adhesive groove 35 to adhere and fix the second optical fiber connector 32; the optical fiber connector part 2 also includes a handle 37 fixed on the card connector 15.

In addition, it should be noted that the light source host 1 also includes a fixing plate 38 and a light source bracket 39 arranged on the fixing plate 38, and the light source bracket 39 is provided with an assembly groove 40 for accommodating the mounting retaining ring seat 5, and the bottom of the assembly groove 40 is provided with an installation hole 41 that passes through the light source bracket 39, and the optical fiber cover 7 is fixed in the installation hole 41.

In this specific embodiment, when light source illumination is required in the existing endoscope (gastroenteroscope), the optical fiber connector and the light source host often have poor contact or cannot be connected. The above scheme arranges a spring between the laser optical fiber seat 8 and the optical fiber cover 7 (a spring in this case, and it can also be other effectively connected elastic limiters). When the laser optical fiber seat 8 is squeezed and moved, the spring bounces it back and fits it tightly against the optical fiber connector part 2, thereby automatically adjusting the distance between the optical fiber lead-out end face and the optical fiber receiving end face, and making the optical fiber lead-out end face and the optical fiber receiving end face stable on the same horizontal axis to prevent lateral misalignment, thereby effectively solving the problem of poor connector contact, ensuring the normal operation of medical equipment, and improving inspection efficiency.

In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, substitute and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention.

Claims

A fiber optic transmission structure, comprising a light source mainframe (1), characterized in that: the light source mainframe (1) comprises a retaining ring seat (5) and a laser fiber seat (8), an optical fiber lead-out end face (4) is positioned on the laser fiber seat (8), the retaining ring seat has a through hole (6), and an optical fiber cover (7) is fixedly provided on one end face of the retaining ring seat (5); the laser fiber seat (8) is penetrated on the retaining ring seat (5) and the optical fiber cover (7) along the through hole (6), and the side wall of the laser fiber seat (8) is constructed with a support on the through hole (6) ) has a flange (9) on the inner wall, and an elastic limiter is provided between the flange (9) and the optical fiber cover (7); the laser optical fiber seat (8) can move along the perforation (6) toward the optical fiber cover (7) under the action of an external force and squeeze the elastic limiter; under the elastic force of the elastic limiter, the laser optical fiber seat (8) moves in the opposite direction along the perforation (6) and adheres to the force-applying end to reduce the distance between the optical fiber lead-out end face (4) and the optical fiber receiving end face (3) on the force-applying end, and stabilize the end faces on both sides on the same axial horizontal plane to prevent lateral misalignment.
An optical fiber transmission structure according to claim 1, characterized in that: the flange (9) is formed on one end of the laser fiber holder (8) opposite to the optical fiber cover (7), and the elastic limiter is a spring (11) sleeved on the laser fiber holder (8).
The optical fiber transmission structure according to claim 2, characterized in that the flange (9) at least partially extends out of the through hole (6) to the outside to form a touch switch that squeezes the elastic limiter.
According to claim 2, an optical fiber transmission structure is characterized in that: a limit assembly is provided on the laser fiber holder (8) and on the outside of the side where the optical fiber cover (7) is located, and the limit assembly can keep the laser fiber holder (8) relatively locked with respect to the optical fiber cover (7).
An optical fiber transmission structure according to claim 4, characterized in that: the limiting assembly includes an optical fiber nut (12) and a thread (13) formed on the side wall of the laser optical fiber holder (8), and the optical fiber nut (12) cooperates with the thread (13) so that the optical fiber nut (12) can press the outer end surface of the optical fiber cover (7).
An optical fiber connector part, which can be plugged into the optical fiber transmission structure described in any one of claims 1 to 5, characterized in that: an optical fiber receiving end face (3) is positioned on the optical fiber connector part (2) and is horizontally arranged along the same axial direction as the optical fiber output end face (4); one of the retaining ring seat (5) and the optical fiber connector part (2) is formed with a retaining groove (14), and the other is provided with a retaining joint (15) that is retainingly connected with the retaining groove (14).
An optical fiber connector according to claim 6, characterized in that: a snap-in groove (14) is defined on one side of the snap-in seat (5) facing the optical fiber connector (2), and a snap-in connector (15) is provided at the front end of the optical fiber connector (2); an annular groove (16) is constructed on the inner wall of the snap-in groove (14), and a metal ring (18) is provided on the outer wall of the snap-in connector (15) to snap-in and lock with the annular groove (16).
An optical fiber connector according to claim 7, characterized in that: an end of the laser fiber seat (8) that abuts the optical fiber connector (2) is inwardly constructed with an abutment channel (20), and the side wall of the abutment channel (20) is inclined, and a laser lens barrel (21) is fixedly penetrated on the clamping joint (15), and the end of the laser lens barrel (21) extends out of the end face of the clamping joint (15) to form a convex ring platform (22), and the convex ring platform (22) is in abutment with the side wall of the abutment channel (20).
An optical fiber connector according to claim 8, characterized in that: the laser lens barrel (21) and the laser optical fiber holder (8) are respectively provided with a first installation channel and a second installation channel communicating with the abutment channel (20); a first protective glass (25), a first collimating lens (26), a first spacer (27) and a first optical fiber connector (28) are fixed from the outside to the inside in the first installation channel; a receiving optical fiber (33) is fixed on the first optical fiber connector (28), and the optical fiber receiving end face (3) is the front end face of the first optical fiber connector (28); a second protective glass (29), a second collimating lens (30), a second spacer (31) and a second optical fiber connector (32) are fixed from the outside to the inside in the second installation channel; an output optical fiber (34) is fixed on the second optical fiber connector (32), and the optical fiber output end face (4) is the front end face of the second optical fiber connector (32).
An optical fiber connector according to claim 9, characterized in that: the end of the laser fiber holder (8) on which the second optical fiber connector (32) is fixed defines an adhesive groove (35) inwardly, and adhesive (36) is applied in the adhesive groove (35) to adhere and fix the second optical fiber connector (32); the optical fiber connector (2) further includes a handle (37) fixed on the card connector (15).