CN219997352U - Optical fiber seat - Google Patents

Abstract

The utility model provides an optical fiber seat, which comprises a base, a base shell, an end cover and a fixing component, wherein one end of the base shell is rotatably arranged in the base, the base shell is provided with a clamping part and a driving part, the base shell is internally suitable for being inserted with an optical fiber, the end cover comprises a clamping adapting part which is suitable for being connected with the clamping part, the end cover is configured to move together with the base shell, the fixing component is arranged in the base shell and is connected with the driving part, the end cover is provided with a clamping adapting part which is suitable for being connected with the clamping part and is arranged on the base shell so as to drive the fixing component to fix the optical fiber, and when the optical fiber is fixed, the optical fiber is inserted into the base shell, the end cover rotates to drive the base shell to rotate relative to the base.

Description

Optical fiber seat

Technical Field

The utility model relates to the technical field of photoelectric equipment manufacturing, in particular to an optical fiber seat.

Background

Optical fibers have many excellent properties, such as: water resistance, high temperature resistance, chemical corrosion resistance, electromagnetic interference resistance and nuclear radiation resistance, electrical insulation, small size, flexibility and light weight, and can be applied to places which cannot be reached by people (such as high temperature areas), places which are harmful to people (such as nuclear radiation areas), or places with complex electromagnetic environments. The optical fiber-based probe has many characteristics such as high sensitivity, high transmission speed, large information capacity, wide applicability, and the like.

The fiber optic probe is the foremost portion of the received signal in the confocal microscopy imaging system. Confocal microscopic imaging systems generally consist of a light source, a probe and a transmission element (optical fiber), a light detector and a signal processing system, and in order to obtain a better image effect, the optical fiber probe needs to be capable of being accurately and stably docked with an optical fiber seat.

The optical fiber seat in the prior art comprises a box body and a box cover connected to the box body, wherein an adapter and a tail fiber are arranged in the box body, a connector of the tail fiber is connected with the adapter, and the adapter is inserted into a port of the box body, but the box cover in the optical fiber seat is connected with the box body through fasteners such as screws, so that the disassembly and the assembly are inconvenient.

Disclosure of Invention

Therefore, the technical problem to be solved by the utility model is that the box cover and the box body in the optical fiber seat in the prior art are connected through fasteners such as screws, so that the disassembly and the assembly are inconvenient.

To this end, the utility model provides an optical fiber holder comprising:

a base;

the base shell is provided with a clamping part and a driving part, and is internally suitable for inserting optical fibers;

an end cap including a snap fit portion adapted to connect with a snap fit portion, the end cap configured to move with the base housing;

the fixed component is arranged in the base shell and is connected with the driving part;

the end cover rotates under the action of external force to drive the base shell to rotate, and then the fixing assembly is driven to fix the optical fiber.

Optionally, the fixing assembly includes:

the top block is provided with a driving adapting part which is suitable for being connected with the driving part;

the locking piece is arranged on one side of the top block, a placing cavity is arranged between the top block and the locking piece, and the locking piece is provided with a first fixing part;

the seat sleeve comprises a second fixing part, the second fixing part is arranged on one side of the first fixing part, and a fixing cavity suitable for placing the optical fiber fixing end is formed between the first fixing part and the second fixing part;

the top block moves along the optical fiber inserting direction under the driving of the base shell, and then drives the locking piece to move along the optical fiber inserting direction, so that the first fixing part approaches the second fixing part to clamp the optical fiber fixing end.

Optionally, a plurality of first claws are arranged on the top block, and the first claws are connected with the locking piece.

Optionally, a plurality of limiting blocks are arranged on the top block, a plurality of first limiting grooves are formed in the locking piece, and the limiting blocks are matched with the first limiting grooves.

Optionally, the fixing assembly further includes an elastic member disposed in the placement cavity, and the top block is driven by the base housing to move along the optical fiber insertion direction to compress the elastic member, so that the elastic member has an elastic force that drives the locking member to move toward the optical fiber insertion direction.

Optionally, the driving part is a plurality of first protrusions arranged on the base shell;

the driving adapting part is a plurality of first arc-shaped grooves arranged on the top block, and the bottom wall of each first arc-shaped groove is in sliding connection with the corresponding first bulge;

the height of the starting end of any one of the first arc-shaped grooves is lower than that of the ending end along the optical fiber inserting direction, and the starting ends and the ending ends of two adjacent first arc-shaped grooves are close to each other.

Optionally, the first arc-shaped grooves are arranged at equal intervals.

Optionally, a plurality of second protrusions are arranged on one side, close to the seat cover, of the locking piece;

the optical fiber seat further comprises a top ring, a plurality of second arc-shaped grooves are formed in the top ring, and the second arc-shaped grooves are connected with the second protrusions in a sliding mode;

and the height of the starting end of any one second arc-shaped groove is lower than that of the ending end along the optical fiber inserting direction, and the starting ends and the ending ends of two adjacent second arc-shaped grooves are mutually close.

Optionally, the second arc grooves are equally spaced.

Optionally, the optical fiber seat further comprises a contact piece connected with the seat sleeve and used for abutting with the optical fiber to realize line communication.

The optical fiber seat provided by the utility model has the following advantages:

1. the utility model provides an optical fiber seat, which comprises a base, a base shell, an end cover and a fixing component, wherein one end of the base shell is rotatably arranged in the base, the base shell is provided with a clamping part and a driving part, an optical fiber is inserted into the base shell, the end cover comprises a clamping adapting part which is suitable for being connected with the clamping part, the end cover is configured to move together with the base shell, the fixing component is arranged in the base shell and is connected with the driving part, and the end cover is provided with a function of rotating under the action of external force so as to drive the base shell to rotate, so that the fixing component is driven to fix the optical fiber.

The optical fiber seat of this structure is through setting up joint portion on the base shell, is equipped with the joint adaptation portion that is suitable for being connected with joint portion on the end cover, when fixing to optic fibre, inserts in the base shell with optic fibre, rotates the end cover, and the end cover drives the base shell and rotates relative base, because fixed subassembly locates in the base shell and with the drive division of base shell is connected, consequently the base shell drive fixed subassembly fixes optic fibre, cooperates with joint adaptation portion through joint portion, need not fastener such as screw, can make things convenient for the equipment of optical fiber seat.

2. The utility model provides an optical fiber seat, which comprises a top block, a locking piece and a seat sleeve, wherein a driving adapting part suitable for being connected with a driving part is arranged on the top block, the locking piece is arranged on one side of the top block, a placing cavity is arranged between the top block and the locking piece, the locking piece is provided with a first fixing part, the seat sleeve comprises a second fixing part, the second fixing part is arranged on one side of the first fixing part, a fixing cavity suitable for placing an optical fiber fixing end is formed between the first fixing part and the second fixing part, the top block is provided with a fixing cavity suitable for being placed on the optical fiber fixing end, and the top block is driven by a base shell to move along the optical fiber inserting direction so as to drive the locking piece to move along the optical fiber inserting direction, so that the first fixing part approaches the second fixing part to clamp the optical fiber fixing end.

The optical fiber seat of this structure, retaining member have first fixed part, and the seat cover includes the second fixed part, just second fixed part locates first fixed part one side, when the end cover drove the base shell and rotates relative base, the base shell drive kicking block along optic fibre insertion direction motion, and then drive retaining member along optic fibre insertion direction motion to make first fixed part be close to the second fixed part, with the clamp optical fiber stiff end, realize fixing optic fibre through the mode of rotating the end cover, can convenient operation.

3. The utility model provides an optical fiber seat, wherein a driving part is a plurality of first bulges arranged on a base shell, a driving adapting part is a plurality of first arc-shaped grooves arranged on a top block, the bottom wall of each first arc-shaped groove is in sliding connection with each first bulge, the height of the starting end of any first arc-shaped groove is lower than the height of the ending end along the optical fiber inserting direction, and the starting ends and the ending ends of two adjacent first arc-shaped grooves are mutually close.

The optical fiber seat of this structure is through setting up along optic fibre direction of inserting, arbitrary arc recess initiating terminal highly is less than the termination end height, and adjacent two first arc recess initiating terminal is close to each other with the termination end, when the basal shell rotates, first arch can be moved to the termination end by initiating terminal when first arc recess diapire slides, and then promotes the kicking block to optic fibre direction of inserting, and then drives the retaining member motion, makes first fixed part be close to the second fixed part to the clamp optical fiber stiff end.

4. The utility model provides an optical fiber seat, wherein a plurality of second bulges are arranged on one side, close to a seat sleeve, of a locking piece; and the height of the starting end of any one second arc-shaped groove is lower than that of the ending end along the optical fiber inserting direction, and the starting ends and the ending ends of two adjacent second arc-shaped grooves are mutually close.

The optical fiber seat of this structure is through setting up along optic fibre direction of inserting, arbitrary second arcuation recess initiating terminal highly is less than the termination height, and adjacent two second arcuation recess initiating terminal is close to each other with the termination, and second arch is in second arcuation recess initiating terminal department when pressing from both sides tight optic fibre, when needing to loosen optic fibre, and the opposite direction rotates the end cover and drives the top circle and rotate, and then moves second arcuation recess terminating terminal to second arch department and jack-up along optic fibre direction of extracting with the retaining member, makes first fixed part keep away from to second fixed part to loosen optic fibre, conveniently extract.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the structure of a fiber seat provided in an embodiment of the present utility model;

FIG. 2 is an exploded view of a fiber optic seat provided in an embodiment of the present utility model;

FIG. 3 is an exploded view of a securing assembly in a fiber optic receptacle provided in an embodiment of the present utility model;

FIG. 4 is a schematic view of an internal structure of an optical fiber seat according to an embodiment of the present utility model;

FIG. 5 is a top view of an end cap in a fiber optic receptacle provided in an embodiment of the present utility model;

FIG. 6 is a cross-sectional view taken along line B-B of FIG. 5;

FIG. 7 is a schematic view of the structure of a base housing in a fiber optic receptacle according to an embodiment of the present utility model;

FIG. 8 is a top view of a base housing in a fiber optic seat provided in an embodiment of the present utility model;

FIG. 9 is a schematic diagram of a top block in a fiber holder according to an embodiment of the present utility model;

FIG. 10 is a schematic view of the structure of the locking member and the elastic member in the optical fiber seat according to the embodiment of the present utility model;

FIG. 11 is a top view of a retaining member in a fiber optic seat provided in an embodiment of the present utility model;

reference numerals illustrate:

1-a base;

2-base shell; 21-a clamping part; 22-first protrusions; 23-a stop; 24-a second limit groove;

3-optical fiber;

4-end caps; 41-a clamping adapter; 42-limiting part;

5-a top block; 51-a first arcuate groove; 52-first jaws; 53-limiting blocks;

6-locking piece; 61-a first fixing portion; 62-a first limit groove; 63-a second bump;

7-seat cover; 71-a second fixing portion;

8-an elastic member;

9-top ring; 91-a second arcuate groove; 92-a second jaw;

101-contact piece.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

Examples

The present embodiment provides an optical fiber holder, as shown in fig. 1 to 3, comprising a base 1, a base housing 2, an end cap 4, a top block 5, a locking member 6, a seat cover 7, an elastic member 8, and a top ring 9. The optical fiber 3 is inserted into the base housing 2 through the end cap 4, and the direction from the end cap 4 to the base 1 is the insertion direction of the optical fiber 3.

As shown in fig. 2, an annular through hole is formed in the middle of the base 1, and the seat cover 7 is disposed in the annular through hole and can rotate freely in the annular through hole, so that the outer surface of the bottom of the base 1 extends outwards to increase the stability of the base 1.

As shown in fig. 3, the bottom of the seat cover 7 is annular and is disposed in the annular through hole in the middle of the base 1, the second fixing portion 71 on the upper portion of the seat cover 7 is columnar and is disposed in the middle of the annular bottom of the seat cover 7, the top ring 9 is internally provided with an annular through hole, and the top ring 9 is sleeved on the seat cover 7 through the annular through hole in the top ring and can rotate relative to the seat cover 7. Three second clamping claws 92 are arranged on the periphery of the top ring 9, and the second clamping claws 92 are elastic pieces; the top ring 9 upper surface is equipped with three equidistant second arc recess 91 that set up, and has the interval between two adjacent second arc recess 91, along optic fibre 3 direction of inserting, i.e. the top ring 9 upper surface is directional lower surface direction in fig. 3, and arbitrary second arc recess 91 initiating terminal height is less than terminating terminal height, and second arc recess 91 is the slope form promptly, and two adjacent second arc recess 91 initiating terminal and terminating terminal are close to each other.

As shown in fig. 3 and 11, the bottom of the locking member 6 is provided with three second protrusions 63, and the three second protrusions 63 are respectively disposed inside the three second arc-shaped grooves 91, so that there is a space between the first fixing portion 61 at the top of the locking member 6 and the second fixing portion 71 at the upper portion of the seat cover 7. It will be appreciated that by providing any of the second arc-shaped grooves 91 with a lower starting end height than the ending end height, when the top ring 9 is rotated, the second arc-shaped groove 91 will slide with the second protrusion 63 and will jack up the second protrusion 63, thereby jack up the locking member 6.

As shown in fig. 2 and 4, a through hole is formed in the middle of the top block 5, the top block 5 is sleeved on the locking member 6 through the through hole, the inner wall of the top end of the top block 5 protrudes inwards to form an annular stop block, as shown in fig. 10, the outer surface of the bottom of the locking member 6 protrudes outwards to form a bottom flange, a placing cavity is formed between the bottom flange and the annular stop block, an elastic member 8 is sleeved on the outer surface of the locking member 6 and is arranged in the placing cavity, one end of the elastic member 8 is abutted to the annular stop block, and the other end of the elastic member 8 is abutted to the bottom flange. By arranging the elastic member 8, the elastic member 8 is compressed when the top block 5 moves towards the insertion direction of the optical fiber 3, so that the elastic member 8 has an elastic force for driving the locking member 6 to move towards the insertion direction of the optical fiber 3, and further driving the locking member 6 to move towards the insertion direction of the optical fiber 3.

As shown in fig. 9 and 10, three limiting blocks 53 are arranged on the side wall of the through hole in the middle of the top block 5, three first limiting grooves 62 are correspondingly formed on the outer surface of the locking piece 6, and when the top block 5 is installed, the three limiting blocks 53 are respectively inserted into the three first limiting grooves 62, so that the installation top block 5 can move up and down relative to the outside of the locking piece 6, and the rotation of the top block 5 relative to the locking piece 6 is limited. Further, the bottom of the through hole in the middle of the top block 5 is provided with three first claws 52, and when the optical fiber 3 is installed, the top block 5 is pressed along the insertion direction of the optical fiber 3 until the first claws 52 are clamped into the lower surface of the flange at the bottom of the locking piece 6, so that the top block 5 can be prevented from moving along the pulling-out direction of the optical fiber 3, the locking piece 6 cannot be driven to move together, and the top block 5 is prevented from being separated from the locking piece 6.

As shown in fig. 3, 10 and 11, a rectangular through hole is formed in the middle of the locking member 6, a rectangular groove is formed in the seat cover 7, the rectangular through hole and the rectangular groove are identical to the shape of the fixing portion on the optical fiber 3, when the optical fiber 3 needs to be inserted, the rectangular through hole is aligned with the rectangular groove by rotating the locking member 6, and then the fixing portion on the optical fiber 3 can be inserted into the rectangular through hole and then placed into the rectangular groove, so that the fixing portion on the optical fiber 3 is located between the first fixing portion 61 of the locking member 6 and the second fixing portion of the seat cover 7, and then the locking member 6 is rotated again to enable the rectangular through hole to be dislocated with the fixing portion on the optical fiber 3, and further the optical fiber 3 can be prevented from sliding out.

As shown in fig. 2 and 9, the top surface of the top block 5 is provided with a driving adapting portion, the driving adapting portion is three first arc grooves 51 which are arranged at equal intervals, and a space exists between two adjacent first arc grooves 51, along the insertion direction of the optical fiber 3, that is, the upper surface of the top block 5 in fig. 9 points to the lower surface direction, the height of the starting end of any first arc groove 51 is lower than the height of the ending end, that is, the first arc grooves 51 are in a slope shape, and the starting ends and the ending ends of two adjacent first arc grooves 51 are close to each other.

As shown in fig. 2, 7 and 8, a through hole is formed in the base shell 2, the opening below the through hole is larger than the opening above the through hole, three stopping portions 23 are arranged on the base shell 2, the stopping portions 23 are through holes formed in the side surface of the base shell 2, during installation, the base shell 2 is buckled on the outer surface of the top block 5 through the opening below, and the stopping portions 23 are clamped with the second clamping claws 92 on the top ring 9, so that the base shell 2 and the top ring 9 synchronously rotate.

As shown in fig. 8, the base housing 2 is provided with a driving portion, the driving portion is three first protrusions 22 disposed on an inner wall above the base housing 2, the three first protrusions 22 are disposed at equal intervals, and the three first protrusions 22 are disposed in three first arc-shaped grooves 51, it can be understood that, when the base housing 2 rotates, the first protrusions 22 move from the starting end to the ending end in the first arc-shaped grooves 51, the first protrusions 22 push the top block 5 to move in the insertion direction of the optical fiber 3, so that the elastic member 8 compresses when the top block 5 moves in the insertion direction of the optical fiber 3, so that the elastic member 8 has an elastic force for driving the locking member 6 to move in the insertion direction of the optical fiber 3, and then the locking member 6 is driven to move in the insertion direction of the optical fiber 3, so that the first fixing portion 61 approaches the second fixing portion 71 to clamp the fixed end of the optical fiber 3. By providing three equally spaced first protrusions 22 and first arcuate recesses 51, the top block 5 is uniformly stressed. The base shell 2 is also provided with a clamping part 21, and the clamping part 21 is three third clamping claws arranged on the outer surface of the base shell 2.

As shown in fig. 5 and 6, the end cap 4 includes a clamping fit portion 41 for connecting with the clamping fit portion 21, the clamping fit portion 41 is three through grooves provided on the end cap 4, and the end cap 4 and the base housing 2 can be kept fixed in the insertion direction of the optical fiber 3 by the third claw being clamped with the through grooves. The inside spacing portion 42 that still is equipped with of end cover 4, spacing portion 42 still is equipped with three second spacing groove 24 for setting up at the three lug of end cover 4 lateral wall, as shown in fig. 7, base shell 2 surface, and second spacing groove 24 is pegged graft mutually with the lug, and then can guarantee that end cover 4 can drive base shell 2 and rotate together. Wherein, be equipped with a plurality of decorative patterns outside end cover 4 and can improve the frictional force outside end cover 4, be provided with plane thrust bearing in top ring 9 below, can make top ring 9 rotate light, reduce the resistance.

As shown in fig. 1, 3 and 4, a through hole is formed in the middle of the sleeve 7, one end of the contact piece 101 is fixed on the side wall of the through hole, and the other end of the contact piece 101 extends out of the base 1, and as the head of the optical fiber 3 is made of metal and can conduct electricity, the contact piece 101 is arranged in the optical fiber base, and the on-off of a circuit can be realized in the process of inserting and extracting the optical fiber 3.

The optical fiber seat that this embodiment provided, during the equipment, firstly place seat cover 7 in base 1, then establish the top ring 9 cover on seat cover 7 and place plane thrust bearing between the two, then establish elastic component 8 cover on retaining member 6 surface, then install retaining member 6 top and second arch 63 is in the rectangular through-hole alignment on the rectangular groove on second arcuation recess 91 initiating terminal, retaining member 6 and seat cover 7, then cover kicking block 5 on retaining member 6 surface, then cover basic shell 2 on kicking block 5 surface, and basic shell 2 backstop portion 23 is connected with top ring 9 second jack catch 92, then with end cover 4 joint on basic shell 2, so far accomplish the equipment of optical fiber seat, this scheme realizes buckle formula connection completely, need not the screw and screws down, make the equipment more convenient, swiftly.

When the optical fiber 3 is fixed, firstly, the end cover 4 is rotated to drive the base shell 2 to rotate, the base shell 2 drives the top ring 9 to rotate so that the second bulge 63 is positioned at the starting end of the second arc-shaped groove 91, then, the end cover 4 is continuously rotated, and the locking piece 6 is driven to rotate by the cooperation of the second bulge 63 and the second arc-shaped groove 91 until the rectangular through hole on the locking piece 6 is aligned with the rectangular groove on the seat cover 7; then the fixed end of the optical fiber 3 passes through the rectangular through hole and is placed in the rectangular groove on the seat sleeve 7, at the moment, the fixed end of the optical fiber 3 is arranged between the first fixed part 61 and the second fixed part 71, and then the end cover 4 is continuously rotated to drive the base shell 2 to rotate until the rectangular through hole is misplaced with the fixed end of the optical fiber 3; then, the end cover 4 is rotated along the direction opposite to the rotation direction, so that the first protrusion 22 moves from the starting end to the ending end of the first arc-shaped groove 51, and the elastic piece 8 is compressed when the top block 5 moves towards the insertion direction of the optical fiber 3, so that the elastic piece 8 has an elastic force for driving the locking piece 6 to move towards the insertion direction of the optical fiber 3, and further the locking piece 6 is driven to move towards the insertion direction of the optical fiber 3, and the first fixing part 61 approaches to the second fixing part 71, so as to clamp the fixing end of the optical fiber 3;

when the optical fiber 3 is pulled out, the end cover 4 is rotated to drive the base shell 2 to rotate, so that the first protrusion 22 moves from the end of the first arc-shaped groove 51 to the start end, and the top ring 9 rotates simultaneously, so that the second arc-shaped groove moves from the start end to the end and then jacks up the locking piece 6 through the second protrusion 63, and the first fixing portion 61 is further away from the second fixing portion 71, so that the optical fiber 3 is loosened, and the pulling out is facilitated.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims (10)

1. An optical fiber holder, comprising:

a base (1);

one end of the base shell (2) is rotatably arranged in the base (1), the base shell (2) is provided with a clamping part (21) and a driving part, and the base shell (2) is internally suitable for inserting an optical fiber (3);

-an end cap (4) comprising a snap fit portion (41) adapted to be connected to a snap fit portion (21), the end cap (4) being configured to move together with the base housing (2);

the fixed assembly is arranged in the base shell (2) and is connected with the driving part;

the end cover (4) rotates under the action of external force to drive the base shell (2) to rotate, and then the fixing assembly is driven to fix the optical fiber (3).

2. The fiber optic holder of claim 1, wherein the securing assembly comprises:

a top block (5) provided with a driving adapting part suitable for being connected with the driving part;

the locking piece (6) is arranged on one side of the top block (5), a placing cavity is arranged between the top block (5) and the locking piece (6), and the locking piece (6) is provided with a first fixing part (61);

the seat cover (7) comprises a second fixing part (71), wherein the second fixing part (71) is arranged on one side of the first fixing part (61), and a fixing cavity suitable for placing the fixing end of the optical fiber (3) is formed between the first fixing part (61) and the second fixing part (71);

the top block (5) is driven by the base shell (2) to move along the insertion direction of the optical fiber (3), and then drives the locking piece (6) to move along the insertion direction of the optical fiber (3), so that the first fixing part (61) approaches the second fixing part (71) to clamp the fixed end of the optical fiber (3).

3. The optical fiber holder according to claim 2, characterized in that a plurality of first claws (52) are arranged on the top block (5), and the first claws (52) are connected with the locking piece (6).

4. A fiber optic holder according to claim 3, wherein the top block (5) is provided with a plurality of limiting blocks (53), the locking member (6) is provided with a plurality of first limiting grooves (62), and the limiting blocks (53) are adapted to the first limiting grooves (62).

5. The optical fiber holder according to claim 4, wherein the fixing assembly further comprises an elastic member (8), the elastic member (8) is disposed in the placement cavity, and the top block (5) is driven by the base housing (2) to move along the insertion direction of the optical fiber (3) so as to compress the elastic member (8), so that the elastic member (8) has an elastic force for driving the locking member (6) to move toward the insertion direction of the optical fiber (3).

6. The optical fiber holder according to any one of claims 2 to 5, wherein,

the driving part is a plurality of first bulges (22) arranged on the base shell (2);

the driving adapting part is a plurality of first arc-shaped grooves (51) arranged on the top block (5), and the bottom wall of the first arc-shaped grooves (51) is in sliding connection with the first protrusions (22);

the height of the initial end of any one first arc-shaped groove (51) is lower than that of the final end along the inserting direction of the optical fiber (3), and the initial ends and the final ends of two adjacent first arc-shaped grooves (51) are close to each other.

7. The optical fiber holder according to claim 6, wherein the first arcuate grooves (51) are equally spaced.

8. The optical fiber holder according to claim 6, wherein,

a plurality of second bulges (63) are arranged on one side, close to the seat cover (7), of the locking piece (6);

the device further comprises a top ring (9), a plurality of second arc-shaped grooves (91) are formed in the top ring, and the second arc-shaped grooves (91) are connected with the second protrusions (63) in a sliding mode;

the height of the initial end of any second arc-shaped groove (91) is lower than that of the final end along the inserting direction of the optical fiber (3), and the initial ends and the final ends of two adjacent second arc-shaped grooves (91) are close to each other.

9. The fiber optic holder of claim 8, wherein the second arcuate grooves (91) are equally spaced.

10. The optical fiber holder according to claim 9, further comprising a contact piece (101) connected to the holder sleeve (7) for abutting with an optical fiber (3) for line communication.