TWM580692U - Optical fiber connector capable of being plugged and unplugged in multiple directions - Google Patents

Abstract

The present invention provides a fiber optic connector that can be inserted and removed in a multi-directional manner, comprising a body, a photoelectric element and a movable door structure, wherein an opening is formed in front of the jack inside the body, and a photoelectric is arranged at the rear of the jack. a door cover of the movable door structure is installed at the opening of the jack, and at least three wall surfaces of the jack opening of the body and the front side surface of the door cover are provided with positioning convexs on opposite sides of the outer surface of the optical fiber plug. a plurality of limiting slots are formed in the ribs, and a locking groove for the other two sides of the outer surface of the optical fiber plug is inserted into the extending path of the limiting channel toward the socket, so that the optical fiber plug can Switching at least two directions of rotation is inserted into the jack, thereby achieving the purpose of smoothly guiding the fiber connector to be inserted and removed in multiple directions (upper, lower, left, and right).

Description

Fiber optic connector that can be inserted and removed in multiple directions

The present invention provides a fiber optic connector that can be inserted and removed in a multi-directional manner, in particular, a plurality of limiting slots in the opening of the jack of the body and the positioning cover ribs on the door cover provided with the outer surface of the optical fiber plug. And a buckle groove for the protrusion of the outer surface of the optical fiber plug is arranged on each of the limiting channels to realize the purpose of inserting and removing the optical fiber connector in multiple directions.

According to the rapid development of information and communication technology, various electronic devices are widely used, and the connection between electronic devices is realized through optical fiber cables and optical fiber connectors, and optical signals are coupled, as well as optical signals and electrical signals. The mutual conversion between the two has the advantages of excellent resistance to electromagnetic and noise interference, high bandwidth, light weight, long distance of signal transmission and good confidentiality. Therefore, signal transmission through optical fiber cables has been carried out in the field of communication. The trend to replace traditional metal transmission lines.

At present, there are many types and types of optical fiber connectors, which mainly include a fiber main body, and a jack for connecting the optical fiber connector on the main body of the optical fiber, and a dustproof movable door is arranged at the opening of the jack, when the optical fiber connector is inserted into the jack When inside, the dust-proof movable door can be pushed to rotate above the jack, and after being inserted into the positioning, the coupling of the optical signal and the mutual conversion between the optical signal and the electrical signal can be aligned with the photoelectric element, and the optical fiber is to be After the connector is pulled out from the jack, the dustproof movable door can be automatically rebounded and reset by the action of the spring.

However, the fiber optic body of the existing fiber optic connector can only provide the fiber connector to be inserted into the jack from a single direction, that is, if it is inserted at 0 degrees, and when the fiber connector is rotated to other angles (such as 90 degrees, 180 degrees, 270) Degree, etc.) can not be inserted, the jack of the fiber body can only provide the way of inserting the fiber connector from a single direction, which can prevent the fiber connector from rotating under the influence of external force in the inserted state, so that the overall signal The transmission is more stable, but when the fiber connector needs to be inserted into the back side or the bottom of the terminal device, and other jacks of the fiber body that are not easily observed, the fiber connector may not be smoothly due to the angle or position of the fiber body. Inserted into the jack, so that the angle of deflection of the fiber optic connector needs to be reversed, and even the structural damage caused by the interference collision between the fiber connector and the jack during the test insertion may also cause signal transmission instability and safety. Problem, so how to design a fiber optic connector that provides multi-directional insertion and removal of fiber optic connectors and improves stability and safety in use. It is to be engaged in this industry, it re-designed to be effectively addressed.

Therefore, in view of the above-mentioned problems and shortcomings, the new creators have collected and reviewed relevant materials through various assessments and trials, and have used the trial and modification of many years of R&D experience in this industry. The new fiber optic connector was born.

The main purpose of the creation is to have a jack inside the body, and an opening is formed in the front of the jack, and a photoelectric element is arranged at the rear of the jack, and a door cover with a movable door structure is installed at the opening of the jack. And at least three wall surfaces of the jack opening of the body and the front side surface of the door cover are provided with a plurality of limiting slots for the positioning ribs of the optical fiber plugs on opposite sides of the outer surface of the optical fiber plug, and Each of the limiting channels is provided with a buckle groove for inserting at least one bump on the outer surface of the outer surface of the optical fiber plug toward the inner side of the insertion hole, so that the optical fiber plug can be cut. Inserting at least two directions of rotation into the jack, thereby smoothly guiding the fiber connector to be inserted and removed in multiple directions (upper, lower, left, and right), thereby not only increasing the convenience of use, but also improving The stability and safety of the whole use, while the door cover is in the closed state, in addition to the function of dustproof and light-shielding, and in the process of inserting the optical fiber plug into the jack at a certain angle of rotation, the door cover can also be used The design of the limiting channel and the buckle groove structure is supplemented by the guiding of the fiber-optic connector, which is not easy to slide out and rotate after being inserted into the positioning, and has more practical effects.

The second purpose of this creation is that the insertion of the fiber connector into the socket of the body, the positioning ribs of the housing are respectively fitted into the limiting channel, and the protrusions respectively extend into the other limit. After the groove is adjacent to the recess at the opening, and the door cover is in the recess at the opening above the limiting channel, the path space in which the bump is embedded or withdrawn can be provided, and the bump is shortened before being buckled into the buckle groove. The interference distance at the inner wall surface of the opening is not easy to be damaged by the interference caused by the interference collision, and the convex block abuts against the guiding surface at the rear of the concave portion, and can be pushed by the optical fiber joint to make the convex block pass over the guiding surface. , and then buckled into the buckle groove of the jack and the door cover, can provide a clear paragraph feel when the user inserts the fiber connector, so as to know that it has been inserted into the positioning.

Another purpose of the present invention is that in the process of injection molding of the mold, the slider in the mold core can be inserted into the buckle groove of the jack from the stripping opening as a formed structure, and the slider is self-contained. After the stripping opening is released, a buckle groove structure can be formed on the side wall surface of the jack, so that no opening is exposed on the surface of the outer body, and the door cover is used to prevent the light emitted by the photoelectric element from leaking to the outside of the body to cause light leakage. Moreover, after the fiber connector is inserted, external light can be prevented from entering the inside of the body along the gap between the door cover and the jack, so that the photoelectric element is not interfered by external light, and dust or impurities can be prevented from entering, thereby achieving good performance. The effect of shadowing and isolation ensures the quality and stability of the overall signal transmission.

1‧‧‧ Ontology

11‧‧‧ jack

110‧‧‧ openings

111‧‧‧Limited channel

1111‧‧‧ recess

1112‧‧‧ Guide surface

112‧‧‧ buckle groove

1121‧‧ ‧ release port

1122‧‧‧stop groove

113‧‧‧Installation Department

114‧‧‧ shaft slot

115‧‧‧Inch groove

12‧‧ ‧ room

121‧‧‧through passage

122‧‧‧ buttonhole

13‧‧‧Fixed cover

131‧‧‧Perforation

132‧‧ ‧ baffle

133‧‧‧Gel buckle

14‧‧‧ concave groove

141‧‧‧ card holding block

15‧‧‧ Positioning film

151‧‧‧Closed hole

152‧‧‧ positioning feet

2‧‧‧Photonics

21‧‧‧Light source transceiver

22‧‧‧Electrode pins

3‧‧‧Active door structure

31‧‧‧ door cover

311‧‧‧Limited channel

3111‧‧‧ recess

3112‧‧‧ Guide surface

312‧‧‧ buckle groove

313‧‧‧ shaft column

314‧‧‧Resistance block

32‧‧‧Flexible components

321‧‧‧First Abutment

322‧‧‧second resistance

33‧‧‧Limited film

331‧‧‧ Fixed Department

332‧‧‧Block

3321‧‧‧ gap

333‧‧‧ side cover

4‧‧‧Fiber Optic Connector

41‧‧‧Shell

411‧‧‧ center pillar

412‧‧‧ positioning ribs

413‧‧‧Bumps

42‧‧‧ Cable

421‧‧‧ fiber core

The first picture is a three-dimensional appearance of the creation.

The second picture is a three-dimensional exploded view of the creation.

The third figure is a three-dimensional exploded view of another perspective of the creation.

The fourth figure is a perspective view of the optical fiber plug of the preferred embodiment prior to insertion.

Figure 5 is a side cross-sectional view of the preferred embodiment of the fiber optic plug prior to insertion.

Figure 6 is a side cross-sectional view showing the optical fiber plug of the preferred embodiment of the present invention when inserted.

Figure 7 is a side cross-sectional view of the preferred embodiment of the fiber optic plug after insertion.

Figure 8 is a perspective view of the optical fiber plug of the preferred embodiment of the present invention after insertion.

In order to achieve the above objectives and effects, the technical means and its construction adopted in the present invention are described in detail in the preferred embodiment of the present invention, and the structure and function are as follows.

Please refer to the first, second, third and fourth figures, which are respectively a three-dimensional appearance view, an exploded perspective view, an exploded perspective view of another perspective, and a three-dimensional appearance of the optical fiber plug of the preferred embodiment before insertion. It can be clearly seen from the figure that the multi-directional plug-in optical fiber connector of the present invention comprises a body 1, a photonic element 2 and a movable door structure 3, wherein: the inside of the body 1 is a horizontal insertion hole 11 An opening 110 is formed in the front of the jack 11 , and a plurality of limiting slots 111 extending toward the inside of the jack 11 are disposed on the left and right sides of the opening 110 and at least three walls of the bottom, and the extending of each limiting slot 111 Each side of the path is provided with a buckle groove 112 orthogonal to the limiting channel 111, and then the limiting channel A recess 1111 wider than the slot of the limiting channel 111 and having a smaller depth is formed adjacent to the opening 110, and/or a guiding surface 1112 extending obliquely toward the insertion hole 11 is formed, and only the recess 1111 or the guide may be formed. The lead surface 1112 is not limited thereto, and the lower part of the socket 11 opposite to the buckle groove 112 is formed with a stripping opening 1121 penetrating to the outside of the body 1 respectively, and is formed by the stripping opening 1121 toward the opening 110, respectively. There is a stop groove 1122; in addition, a top portion of the opening 110 of the insertion hole 11 is provided with a hollow mounting portion 113, and opposite shaft grooves 114 are formed at both side wall surfaces of the mounting portion 113, and between the two axial grooves 114 A snap groove 115 that communicates with the insertion hole 11 is formed rearward.

Further, a rear cover 11 of the body 1 is provided with a chamber 12 and a fixed cover 13 coupled to the chamber 12, and a through passage 121 communicating with the insertion hole 11 is formed at a front wall surface of the chamber 12. And a buttonhole 122 (shown in FIG. 5) located below the through channel 121, and the fixed cover 13 has a plurality of through holes 131 on the surface thereof, and at least two vertically extending blocks on the outer side of the through hole 131 a plate 132, and the fixing cover 13 is adjacent to the convex buckle 133 provided at the other side of the baffle 132 (such as the front side), and the outer surface of the body 1 (such as the left and right sides, the bottom) is provided with a concave groove 14, and The inner surface of the concave groove 14 is provided with a corresponding holding block 141, and the U-shaped positioning piece 15 is embedded in the concave groove 14. The two sides of the positioning piece 15 are provided with a buckle that is engaged with the holding block 141. The hole 151 is further bent and extended by the inner edge of the two fastening holes 151 to extend the positioning leg 152.

The photon element 2 includes a light source transceiver unit 21 and a plurality of electrode pins 22, wherein the light source transceiver unit 21 is electrically connected to the plurality of electrode pins 22 for converting optical signals and electrical signals, and each of the electrode pins 22 is Extending out of the outside of the molding body (such as the bottom) to form an electrical connection with the predetermined circuit board.

The movable door structure 3 includes a door cover 31, at least one elastic member 32 and a limiting piece 33, and a central position on the front side surface of the door cover 31 is provided with a limiting groove 311 extending toward the upper and lower ends, and The extending path of the limiting channel 311 is provided with a buckle groove 312 which is orthogonal to the limiting channel 311, and the opposite shaft column 313 is disposed at two sides of the door cover 31, and is disposed on the two-axis column 313. The sleeve is provided with a resilient member 32, and the two sides of the bottom surface of the door cover 31 are provided with a resisting block 314, and the sleeve holes at the two sides of the elastic member 32 are sleeved on the shaft post 313 and below the two socket holes. A first abutting end 321 having a U shape is connected, and a second abutting end 322 is respectively extended above the two sockets; and at least one opening is formed at the upper opening of the limiting channel 311 of the door cover 31. a recess 3111 that is wider than the slot of the limiting channel 311 and has a smaller depth and/or a guiding surface 3112 that extends outwardly.

In addition, the limiting piece 33 is a fixing portion 331 having a lateral direction, and a longitudinal blocking portion 332 is bent downwardly from the front of the fixing portion 331 , and a notch 3321 is formed below the blocking portion 332 , and then the fixing portion 331 is formed. An opposite side cover 333 extends outwardly adjacent to the side of the blocking portion 332.

When the present invention is assembled, the photonic element 2 is first embedded in the chamber 12 from the bottom of the body 1 to form a alignment between the light source transceiver portion 21 and the through passage 121, and then the fixed cover 13 is coupled to the chamber. 12, at the same time, the plurality of electrode pins 22 of the photonic elements 2 are respectively passed under the through holes 131 of the fixing cover 13, and the baffle 132 of the fixing cover 13 abuts against the bottom of the photonic elements 2, and the protruding buckles 133 are fastened to In the buttonhole 122, it is possible to prevent the photon 2 from being loosened or detached by the external force.

Then, at least one elastic member 32 can be sleeved on the two-axis column 313 of the door cover 31 of the movable door structure 3, and the door cover 31 is the mounting portion 11 of the body 1. 3 is placed downward in the opening 110 of the jack 11 so that the two shaft posts 313 are respectively mounted in the shaft slots 114, and the fixing portion 331 of the limiting piece 33 can be embedded in the opening 110 of the jack 11 In the inset slot 115, the blocking portion 332 extends into the wall of the opening 110 of the receiving slot 11 without the limiting slot 111, and the two side covers 333 are respectively covered above the shaft slot 114, so that the door cover is The two shafts 313 are respectively pivotally connected to the shaft groove 114 without being disengaged, and the first abutting end 321 and the second abutting end 322 at the two sides of the elastic member 32 are respectively elastically supported against the door cover. The rear surface of the plate 31 and the bottom surface of the fixing portion 331 of the limiting piece 33 are positioned, and the abutting blocks 314 of the door cover 31 are respectively blocked in the stopping groove 1122 at the bottom of the insertion hole 11, and are also transparent. The blocking portion 332 of the limiting piece 33 abuts against the front side surface of the door cover 31, so that the door cover 31 is closed at the opening 110 of the insertion hole 11 when not in use to prevent the door cover 31 from being excessively outward. The assembly of the whole of the creation is completed by turning or disengaging the opening 110 of the insertion hole 11.

When the optical fiber connector of the present invention is mounted on the preset circuit board, the positioning piece 15 combined on the outer surface of the body 1 is first passed down through the through hole of the preset circuit board by the positioning pin 152, and is positioned by the positioning. The bent portion of the foot 152 is held at the periphery of the through hole, and the electrode pin 22 of the photon element 2 is passed downward through the perforation of the predetermined circuit board, respectively, and the electrode pin 22 can be surface-adhesively used ( The SMT) or the through-hole soldering method is electrically connected with the preset circuit board, and the body 1 is stably fixed on the preset circuit board without shaking, so as to prevent the electrode pins of the photonic element 2 caused by the frequent insertion and removal of the optical fiber connector 4. 22 peeling off from the preset circuit board, or loosening or detachment caused by insufficient pull-out and holding force, thereby ensuring the positioning effect of the fiber connector 4 for multiple plug-and-pull docking, whether it is electrical signal transmission or It has better reliability in structural stability.

In the embodiment, the body 1 is disposed on the bottom surface of the insertion hole 11 to be recessed and provided with the chamber 12, but in practical applications, the chamber 12 may be recessed downwardly at the top surface of the rear surface of the body 1. And the photocell 2 and the fixing cover 13 attached to the photonic element 2 are mounted in the chamber 12, and the structural design of the fixing cover 13 may be omitted, and the photonic element 2 is directly installed in the chamber 12, and The specific embodiment of the movable door structure 3 includes a door cover 31, an elastic member 32 and a limiting piece 33, and is elastically supported by the elastic member 32 against the rear surface of the door cover 31 to have a rebound reset. The function of the limiting piece 33 prevents the shaft post 313 of the door cover 31 from coming out of the shaft groove 114 above the body 1. However, in practical applications, it is not limited thereto, and the limiting piece may be omitted. The structural design of the 33, and the two-axis groove 114 of the body 1 can directly form a protruding block, so that the shaft post 313 of the door cover 31 can be inserted into the lower part of the stop along the axial groove 114 to form a pivotal connection. In addition, the movable door structure 3 can also directly extend downward from the bottom surface of the fixing portion 331 of the limiting piece 33, and the elastic piece is bounced by the elastic piece. The utility model has the function of rebound resetting on the rear side surface of the door cover 31, and therefore is described together in the following description, and is combined with Chen Ming.

Please refer to the fifth, sixth, seventh and eighth figures for the side view of the preferred embodiment of the optical fiber plug before insertion, a side cross-sectional view during insertion, and a side cross-sectional view after insertion. And the stereoscopic appearance of the optical fiber connector 4 has a center pillar 411 inside, and a fiber core 421 of the cable 42 is disposed in the center pillar 411. The outer surface of the casing 41 is formed with positioning ribs 412 at opposite sides thereof, and at least one bump 413 is formed at opposite sides.

When the optical fiber connector 4 is inserted at a degree of 0 degrees or a plurality of azimuth angles of 90 degrees, 180 degrees, and 270 degrees toward the insertion hole 11 of the body 1, the housing 41 and the center post 41 The front end of the door 3 is pushed onto the door cover 31 of the movable door structure 3, so that the door cover 31 can be pivoted toward the inner side of the insertion hole 11 and form an open state, and is pressed against the elastic member 32. The upper portion is elastically deformed, and the fiber post 4 is inserted into the insertion hole 11 to penetrate the center post 411 into the insertion passage 121 of the chamber 12, and the pair of optical fibers 421 disposed in the center post 411 are disposed. The light source transceiver unit 21 of the quasi-photon unit 2 performs a conversion and transmission operation between the optical signal and the electric signal.

During the insertion of the optical fiber connector 4 at an angle of 0 degrees, the positioning ribs 412 at the left and right sides of the housing 41 are respectively fitted into the two limiting slots 111 of the insertion hole 11 to prevent the optical fiber connector 4 from being inserted. The protrusions 413 in the insertion state and the protrusions 413 on the upper and lower sides of the housing 41 respectively extend into the recesses 1111 of the other limiting channel 111, and the door cover 31 opens at the opening above the limiting channel 311. After the recessed portion 3111 is provided, the path space in which the bumps 413 are inserted or withdrawn can be provided, and the distance between the bumps 413 and the inner wall of the opening 110 before being fastened into the buckle grooves 112 and 312 can be shortened, and the insertion force is not easily interfered by excessive insertion force. The structure is damaged by the collision, and the bump 413 is pressed against the guiding surfaces 1112 and 3112 of the limiting channel 111, 311, and then pushed to the optical fiber connector 4, and the bump 413 of the housing 41 can be The guide surfaces 1112 and 3112 are respectively inserted into the buckles 112 and 312 of the jack 11 and the door cover 31, which not only provides a clear paragraph feel when the user inserts the fiber connector 4, but also obtains a certain Knowing that it has been inserted into the positioning and increasing the force required for the fiber connector 4 to exit the socket 11, it is not easy to produce Loose or slip out to improve stability and safety during overall use.

As shown in the fourth figure, when the user inserts the optical fiber connector 4 into the insertion hole 11 of the body 1 by a 90 or 270 degree angle, one of the housing 41 can be positioned relative to the rib. The 412 is respectively fitted into the limiting slots 111 and 311 of the jack 11 and the door cover 31 to prevent the optical fiber connector 4 from rotating in the inserted state, and the other opposite protrusion 413 can be along the opening 110. After the chamfering or guiding surface of the wall surface is pushed in, and then buckled into the buckle groove 112 at the left and right side wall surfaces of the jack 11, the optical fiber connector 4 can be switched at least two rotation angles or positions inserted into the body 1 In the hole 11, the smooth guiding of the optical fiber connector 4 in a plurality of different directions (upper, lower, left, and right) can be smoothly performed.

In addition, in the process of injection molding of the body 1 , the slider in the mold core can be inserted into the buckle groove 112 of the insertion hole 11 from the mold release opening 1111 as a formed structure, and the slider is self-contained. After the stripping opening 1121 is disengaged, the structure of the buckle groove 112 can be formed at the two side wall surfaces of the insertion hole 11, so that no opening is exposed on the outer surface of the body 1 (such as the left and right sides and the top), and the door cover 31 is used to prevent the photoelectric element. The emitted light leaks to the outside of the body 1 and the light leakage occurs. After the optical fiber connector 4 is inserted, the external light can be prevented from entering the inside of the body 1 along the gap between the door cover 31 and the insertion hole 11 to make the photoelectric Element 2 is not subject to external light interference, and it can also prevent the entry of dust or impurities, achieving good shielding and isolation, thus ensuring the quality and stability of the overall signal transmission.

The above detailed description is intended to be illustrative of a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and other equivalents and modifications may be made without departing from the spirit of the invention. Changes are to be included in the scope of patents covered by this creation.

In summary, the above-mentioned multi-directional plug-in optical fiber connector can achieve its efficacy and purpose when used, so this creation is a practical and excellent creation, which is in line with the application requirements of the new patent, Submit an application in accordance with the law, and hope that the trial committee will grant the case as soon as possible to protect The hard work of the new creators of the barriers, if there is any doubt in the bureau, please do not hesitate to give instructions, the new creators will try their best to cooperate, and feel really good.

Claims (10)

A fiber optic connector that can be inserted and removed in a multi-directional manner includes a body, a photoelectric element, and a movable door structure. The body has an insertion hole therein, and an opening for inserting the optical fiber plug is formed in front of the insertion hole. The photoelectric element is disposed at a position behind the jack of the body for aligning with the optical fiber plug for converting between an optical signal and an electrical signal, and the movable door structure comprises a door cover mounted at an opening of the jack, The fiber plug is pushed up and rotated into the opening to form an open state, wherein at least three wall surfaces of the jack opening of the body and the front surface of the door cover are provided with an outer surface of the fiber plug And a plurality of limiting slots engaged with the positioning ribs on the two sides, and at least one of the opposite sides of the outer surface of the optical fiber plug is respectively disposed on the extending path of each of the limiting slots toward the insertion hole The buckle is buckled into the slot to enable the fiber plug to be inserted into the jack in at least two rotational directions. The multi-directional plug-in optical fiber connector of claim 1, wherein each of the limiting slots of the jack is orthogonal to the buckle slot, and the limiting slot is adjacent to the opening. At least one recess having a wider width and a smaller depth than the notch of the limiting channel is formed. The multi-directional plug-in optical fiber connector of claim 1, wherein each of the limiting slots of the jack is orthogonal to the buckle slot, and the limiting slot is adjacent to the opening. A guiding surface that obliquely extends toward the insertion hole is formed at the portion. The multi-directional plug-in optical fiber connector according to the first aspect of the invention, wherein the jack is formed at a lower portion of the two side wall surfaces opposite to the buckle groove to respectively form a stripping opening penetrating to the outside of the body for After the slider of the mold is released from the stripping opening, the buckle groove is formed, so that no openings are formed on the two sides and the top of the body. The multi-directional plug-in optical fiber connector according to the fourth aspect of the invention, wherein the stripping opening at the bottom of the buckle groove is formed with a stop groove toward the opening, and the bottom surface of the door cover is Abutting blocks that are stopped in the stop groove are respectively disposed at the side. The multi-directional plug-in optical fiber connector according to claim 1, wherein the jack is provided with a hollow mounting portion at the top of the opening, and opposite shafts are formed at the side wall surfaces of the mounting portion. a slot, and the opposite side of the door cover is provided with an opposite shaft column for mounting in the shaft slot to form a sliding open or closed state of the door cover. The multi-directional plug-in optical fiber connector according to claim 6, wherein the mounting portion is formed with a locking groove that communicates with the insertion hole between the two axial grooves, and the movable door structure The invention further includes at least one elastic component sleeved on the shaft post, and a limiting piece embedded in the locking groove, and the elastic component has a spring for respectively supporting the door cover and the limit The first abutting end and the second abutting end on the chip. The multi-directional plug-in optical fiber connector according to claim 7, wherein the limiting piece has a fixing portion embedded in the locking groove, and is bent downward at a front of the fixing portion. There is a blocking portion for the front side surface of the door cover to abut, and a notch is formed below the blocking portion, and the two sides of the fixing portion are adjacent to the blocking portion and extend outwardly to cover the upper portion of the shaft groove. Side cover. The multi-directional plug-in optical fiber connector of claim 1, wherein the upper opening of the limiting channel of the door cover is formed with at least one wider and deeper than the limiting slot Smaller recess. The multi-directional plug-in optical fiber connector according to the first aspect of the invention, wherein the opening of the limiting channel of the door cover is formed with a guiding surface facing outward.