Optical fiber connector

Abstract

The present invention relates to the field of optical fiber connection technology, and discloses an optical fiber connector, including a shell and an optical cable clamp block, wherein the rear end of the shell is provided with an accommodating cavity for accommodating the optical cable clamp block, and the accommodating cavity runs through one side of the shell to form an insertion port for inserting the optical cable clamp block; a card slot is provided at the bottom of the accommodating cavity, and the optical cable clamp block is provided with a protrusion that engages with the card slot; a guide groove is provided on the inner side wall of the accommodating cavity, and the length direction of the guide groove is the same as the insertion direction of the optical cable clamp block in the accommodating cavity, and the optical cable clamp block is provided with a guide block that cooperates with the guide groove for guidance; a moving gap is reserved between the guide block and the inner side wall of the guide groove along the width direction of the guide groove. The optical cable clamp block of the present invention has a moving gap reserved between the guide block and the inner side wall of the guide groove along the width direction of the guide groove, so as to avoid deformation of the shell caused by the protrusion of the optical cable clamp block hitting the bottom of the accommodating cavity when the accommodating cavity moves, and to avoid fatigue of the shell due to deformation.

Description

Technical Field

[0001] The present invention relates to the technical field of optical fiber connection, and in particular to an optical fiber connector. Background Art

[0002] Existing optical fiber connectors mainly include straight-through type and embedded type. Among them, the embedded type connector is a connector in which an optical fiber is embedded in the inner hole of the ceramic ferrule body. One end passes through the ceramic ferrule body and is ground and polished to form an end that docks with a normal connector, while the other end is exposed to a certain length and is used to connect to an external optical fiber.

[0003] At present, most of the tails of embedded fiber optic connectors use cable fixing parts and tail sleeves to fix the external optical fiber, such as the ultra-short flip-top optical fiber quick connector disclosed in Chinese patent publication No. CN202886651U, the optical fiber connector and optical fiber connector assembly disclosed in patent publication No. CN105511024A, and the optical fiber connector tail sleeve fixing tool disclosed in patent publication No. CN210323471U. However, when the above-mentioned structures are inserted into the optical fiber line and then put into the cable fixing parts, the optical fiber is easy to move, which can easily cause the external optical fiber to be over-interference or under-interference in the optical fiber connector, making it impossible for the external optical fiber to be accurately connected with the pre-buried optical fiber in the body hole of the ceramic ferrule.

[0004] In order to solve the above problems, patent announcement number CN211086689U discloses an optical fiber connection structure, which includes a connector housing and a cable clamp block, wherein the connector housing is provided with a receiving cavity for receiving the cable clamp block, the cable clamp block is provided with a guide arm extending along the axial direction of the cable clamp block, and the inner side wall of the receiving cavity is provided with a guide groove for cooperating with the guide arm to guide the directional movement of the cable clamp block. The directional movement of the cable clamp block along the guide groove can avoid the movement of the optical cable and securely fix the optical cable.

[0005] However, during the directional movement of the optical cable clamp block along the guide groove, the clamping point of the optical cable clamp block presses against the inner wall of the accommodating cavity and causes the external connector housing to deform. Repeated movements of the optical cable clamp block along the guide groove will cause the external connector housing to be permanently deformed due to fatigue, resulting in reduced assembly stability of the optical fiber connector. Summary of the invention

[0006] The object of the present invention is to provide an optical fiber connector which can improve the assembly stability of an optical cable clamp block and avoid fatigue of an outer shell due to deformation.

[0007] In order to achieve the above-mentioned purpose, the present invention provides an optical fiber connector, including a shell and an optical cable clamp block, the rear end of the shell is provided with an accommodating cavity for accommodating the optical cable clamp block, the accommodating cavity runs through one side of the shell to form an insertion port for inserting the optical cable clamp block, a card slot is provided at the bottom of the accommodating cavity, and the optical cable clamp block is provided with a protrusion that cooperates with the card slot; a guide groove is provided on the inner side wall of the accommodating cavity, and the length direction of the guide groove is the same as the insertion direction of the optical cable clamp block in the accommodating cavity, and the optical cable clamp block is provided with a guide block that cooperates with the guide groove for guidance; a moving gap is reserved between the guide block and the inner side wall of the guide groove along the width direction of the guide groove.

[0008] Furthermore, the number of the guide grooves is two, and the two guide grooves are respectively arranged on opposite inner side walls of the accommodating cavity.

[0009] Further, the optical cable clamp block comprises a body and a cover;

[0010] The upper surface of the body is provided with a cable threading groove penetrating through both sides thereof and used for optical cables to pass through, and the cover body is used to cover the opening of the cable threading groove;

[0011] The protrusion is arranged on the lower surface of the body, and the guide block is arranged on the outer side wall of the body.

[0012] Furthermore, it also includes a tail sleeve rotatably arranged at the tail end of the housing;

[0013] A clamping block with an inclined portion is arranged on the outer side wall of the rear end of the shell, and a linear groove which is matched and clamped with the clamping block is opened in the tail sleeve.

[0014] Furthermore, it also includes a ferrule assembly for the pre-buried optical fiber to pass through;

[0015] The shell is provided with an inner cavity for accommodating the ferrule assembly, and the inner cavity is communicated with the accommodating cavity through an optical fiber channel.

[0016] Furthermore, the shell is provided with deep blind grooves on both sides of the optical fiber channel respectively, which are arranged along the length direction of the optical fiber channel.

[0017] Furthermore, a first window for inserting the ferrule assembly into the inner cavity is formed on the side of the shell.

[0018] Furthermore, the ferrule assembly includes a core body, a seat body, a pressure plate, and a lock;

[0019] The core body has through holes running through both ends thereof, the first end of the core body is a plug-in end, and the outer side wall of the second end of the core body is provided with a groove portion communicating with the through holes;

[0020] The seat body has through holes penetrating through its two ends, the seat body is sleeved on the outer side wall of the second end of the core body, and the second end surface of the core body is located in the seat body, and the outer side wall of the seat body is provided with a second window communicating with the through hole, and the second window corresponds to the groove portion; the seat body is sleeved with a spring at one end away from the plug end;

[0021] The pressure plate cover is arranged on the second window; the locking sleeve is arranged on the outer side wall of the seat body and the pressure plate.

[0022] Further, a fastener is included;

[0023] The fastener includes a cover plate and a cantilever hook arranged on the lower surface of the cover plate;

[0024] The cover plate covers a partial area of ​​the first window; and the shell is provided with a clamping hole which is engaged with the cantilever clamping hook.

[0025] Furthermore, the fastener also includes a protrusion arranged on the lower surface of the cover plate and used to abut against the seat body.

[0026] Compared with the prior art, the optical fiber connector according to the embodiment of the present invention has the following beneficial effects:

[0027] When the optical cable clamp of the embodiment of the present invention is inserted into the accommodating cavity, the guide block moves along the length direction of the guide groove, thereby improving the stability and accuracy of the installation of the optical cable clamp on the housing. At the same time, a moving gap is reserved between the guide block and the inner side wall of the guide groove in the width direction of the guide groove, thereby preventing the optical cable clamp from protruding against the bottom of the accommodating cavity when moving in the accommodating cavity, thereby preventing the housing from being deformed due to fatigue caused by deformation, thereby improving the service life of the housing. Users can recycle the housing and the optical cable clamp, which can effectively save the cost of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic diagram of the disassembly of the optical fiber connector of the present invention;

[0029] Figure 2 It is a structural schematic diagram of the optical cable clamp block of the present invention, in which the moving gap is located at the top when the optical cable clamp block is installed in the accommodating cavity;

[0030] Figure 3 It is a structural schematic diagram of the optical cable clamp block of the present invention, in which the moving gap is located at the bottom when the optical cable clamp block is installed in the accommodating cavity;

[0031] Figure 4 is a front view of the optical fiber connector of the present invention;

[0032] Figure 5 yes Figure 4 Sectional view along the middle line A-A;

[0033] Figure 6 It is a schematic diagram of the structure of the housing, the insert assembly and the fastener of the present invention;

[0034] Figure 7 is a schematic diagram of the optical cable clamp of the present invention being inserted into the accommodating cavity (without the tail sleeve);

[0035] Figure 8 is a schematic structural diagram of the housing of the present invention observed from one angle;

[0036] Fig. 9 is a schematic structural diagram of the housing of the present invention observed from another angle;

[0037] Fig.10 It is a schematic diagram of the structure of the optical cable clamp block of the present invention after being closed;

[0038] Fig.11 is a schematic structural diagram of the optical cable clamp of the present invention after it is unfolded and observed from one angle;

[0039] Fig.12 is a schematic structural diagram of the optical cable clamp of the present invention after it is unfolded and observed from another angle;

[0040] Fig.13 It is a schematic structural diagram of the tail sleeve of the present invention;

[0041] Fig.14 It is a schematic diagram of the disassembly of the ferrule assembly of the present invention;

[0042] Fig.15 It is a structural schematic diagram of the fastener of the present invention;

[0043] Fig.16 It is a structural schematic diagram of the front cover of the present invention;

[0044] In the figure, 1-housing, 11-accommodating cavity, 111-card slot, 112-guide groove, 112a-moving gap, 112b-inner side wall of the guide groove, 113-insertion port, 114-inner side wall of the accommodating cavity, 12-hinge column, 13-card block, 131-inclined portion, 14-inner cavity, 141-first window, 15-optical fiber channel, 16-deep blind groove, 17-card hole, 18-giving groove;

[0045] 2-cable clamping block, 21-body, 211-protrusion, 212-guide block, 213-cable threading groove, 22-cover body;

[0046] 3-tail sleeve, 31-hinge hole, 32-linear slot;

[0047] 4 - insert assembly, 41 - core body, 411 - through hole, 412 - groove portion, 42 - seat body, 421 - through hole, 422 - second window, 43 - pressure plate, 44 - lock, 45 - spring;

[0048] 5-fastener, 51-cover plate, 52-cantilever hook, 53-bump;

[0049] 6-front sleeve, 61-slot hole;

[0050] 10 - External optical cable. DETAILED DESCRIPTION

[0051] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0052] 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", "outside", "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.

[0053] 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, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0054] 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] 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.

[0056] like Figure 1 -16, which is a fiber optic connector of a preferred embodiment of the present invention. Specifically, the fiber optic connector of the present invention includes a housing 1 and a cable clamp block 2. The rear end of the housing 1 is provided with a housing cavity 11 for accommodating the cable clamp block 2. The housing cavity 11 runs through one side of the housing 1 to form an insertion port 113 for inserting the cable clamp block 2. A card slot 111 is provided at the bottom of the housing cavity 11. The cable clamp block 2 is provided with a protrusion 211 that is engaged with the card slot 111. A guide groove 112 is provided on the inner side wall 114 of the housing cavity. The length direction of the guide groove 112 is the same as the insertion direction of the cable clamp block 2 in the housing cavity 11. The cable clamp block 2 is provided with a guide block 212 that cooperates with the guide groove 112 for guidance. A moving gap 112a is reserved between the guide block 212 and the inner side wall 112b of the guide groove along the width direction of the guide groove 112.

[0057] Based on the above structure, when the optical cable clamp 2 is inserted into the accommodating cavity 11, the guide block 212 moves along the length direction of the guide groove 112, thereby improving the stability and accuracy of the installation of the optical cable clamp 2 on the housing 1. At the same time, a moving gap 112a is reserved between the guide block 212 and the inner side wall 112b of the guide groove in the width direction of the guide groove 112, thereby preventing the protrusion 211 from pressing against the bottom of the accommodating cavity 11 when the optical cable clamp 2 moves in the accommodating cavity 11, thereby preventing the housing 1 from being deformed due to fatigue caused by the deformation, thereby improving the service life of the housing 1.

[0058] refer to Fig.10-12, the optical cable clamp 2 includes a main body 21 and a cover 22. The upper surface of the main body 21 is provided with a cable groove 213 that runs through both sides thereof and is used for the optical cable to pass through, and the cover 22 is used to cover the opening of the cable groove 213. The connection between the cover 22 and the main body 21 can be an integral connection or a split connection. For example, the cover 22 is rotatably arranged on the main body 21 by a hinge structure such as a pin shaft, and the cover 22 rotates relative to the main body 21 to achieve the cover 22 covering or opening the opening of the cable groove 213; for example, the cover 22 is connected to the main body 21 by a snap-fit ​​structure or a mortise and tenon structure, so the present invention does not limit the connection relationship between the cover 22 and the main body 21.

[0059] The protrusion 211 is arranged on the lower surface of the body 21, and the guide block 212 is arranged on the outer side wall of the body 21. The body 21, the protrusion 211 and the guide block 212 are preferably an integrated structure of injection molding. The number of the protrusions 211 corresponds to the number of the slots 111, and the number of the protrusions 211 can be two; the number of the guide blocks 212 corresponds to the number of the guide slots 112, and the number of the guide blocks 212 can be two, and the two guide blocks 212 are respectively arranged on both sides of the body 21.

[0060] refer to Figure 1 According to the general structure of the embedded optical fiber connector, the optical fiber connector of the present invention further includes a core assembly 4, a fastener 5, a tail sleeve 3 and a front sleeve 6.

[0061] refer to Figure 6 -9. The shell 1 of the present invention is provided with two guide grooves 112 on the opposite inner side walls 114 of the accommodating cavity. The two guide grooves 112 can be optionally arranged at the same horizontal height. Correspondingly, two guide blocks 212 are respectively arranged on the opposite side walls of the optical cable clamp 2. The two guide blocks 212 are respectively directed to move along the length direction of the two guide grooves 112, thereby effectively improving the stability of the installation of the optical cable clamp 2 on the shell 1.

[0062] The housing 1 is provided with an inner cavity 14 for accommodating the ferrule assembly 4, and the inner cavity 14 is connected with the accommodating cavity 11 through an optical fiber channel 15. The optical fiber of the external optical cable is connected with the pre-buried optical fiber of the ferrule assembly 4 arranged in the inner cavity 14 through the optical fiber channel 15. Since the cross-sectional area of ​​the optical fiber is small, the cross-sectional area of ​​the optical fiber channel 15 is smaller than the cross-sectional area of ​​the inner cavity 14 and the accommodating cavity 11. In order to improve the processing stability of the housing 1, the housing 1 is provided with deep blind grooves 16 arranged along the length direction of the optical fiber channel 15 on both sides of the optical fiber channel 15. The deep blind grooves 16 reduce the thickness difference between the housing 1 on both sides of the optical fiber channel 15 and the housing 1 on both sides of the inner cavity 14 and the accommodating cavity 11, thereby avoiding the large thickness difference of the housing 1 during the injection molding process, which may cause the housing 1 to deform and other quality problems.

[0063] In order to facilitate the assembly of the ferrule assembly 4 in the inner cavity 14, a first window 141 is provided on the side of the housing 1 for inserting the ferrule assembly 4 into the inner cavity 14. The first window 141 is in communication with the inner cavity 14. Optionally, according to the structure and size design of the ferrule assembly 4, the inner cavity 14 is designed to have a small cross-sectional area at both ends and a large area in the middle, so as to improve the assembly relationship of the ferrule assembly 4 in the housing 1, and therefore the structure of the first window 141 corresponds to the structure of the inner cavity 14.

[0064] Further, refer to Figure 1 , 6 , 14, the core assembly 4 comprises a core body 41, a seat body 42, a pressure plate 43, and a lock 44. The core body 41 can be made of ceramic material, and the core body 41 has a through hole 411 running through both ends thereof, the first end of the core body 41 is a plug-in end, and a groove portion 412 communicating with the through hole 411 is provided on the outer side wall of the second end of the core body 41. A pre-buried optical fiber is provided in the through hole 411, one end of the pre-buried optical fiber is exposed outside the plug-in end for docking with a normal connector, and the other end of the pre-buried optical fiber is located in the groove portion 412. The seat body 42 has a through hole 421 passing through both ends thereof. The seat body 42 is sleeved on the outer wall of the second end of the core body 41, and the second end face of the core body 41 is located in the seat body 42. A second window 422 communicating with the through hole 421 is provided on the outer wall of the seat body 42. The second window 422 corresponds to the groove portion 412. During installation, the optical fiber of the external optical cable enters the core assembly 4 through the optical fiber channel 15 and docks with the pre-buried optical fiber in the groove portion 412.

[0065] The seat body 42 is sleeved with a spring 45 at one end away from the plug-in end. When the core body 41 and the seat body 42 are assembled in the inner cavity 14, one end of the spring 45 abuts against the outer wall of the seat body 42, and the other end of the spring 45 abuts against the side wall of the inner cavity 14, so that the spring 45 is in a compressed state. The pre-tightening force of the spring 45 is used to fix the ferrule assembly 4 in the inner cavity 14 to prevent the optical fiber connector from vibrating during use and causing the core body 41 and the seat body 42 to move in the inner cavity 14, thereby ensuring the stability of the optical fiber connection between the pre-buried optical fiber and the external optical cable. Further, the end of the seat body 42 with the spring 45 is arranged in the end of the inner cavity 14 connected to the optical fiber channel 15.

[0066] The pressing plate 43 is covered on the second window 422 to lock the docking point between the pre-buried optical fiber and the external optical fiber. The lock buckle 44 is sleeved on the outer wall of the seat body 42 and the pressing plate 43, and the docking point is locked or unlocked by pushing the lock buckle 33 (forward push to lock, backward push to unlock).

[0067] refer to Figure 5 , 15, the fastener 5 includes a cover plate 51, and the cover plate 51 can be covered on a partial area of ​​the first window 141, wherein the cover plate 51 covers the area where the first window 141 is located above the spring 45 (that is, the first window 141 is located at the corresponding area of ​​the tail of the seat body 42) to prevent the accidental release of the pre-tightening force of the spring 45 from causing the plug assembly 4 to escape from the inner cavity 14. A cantilever hook 52 is provided on the lower surface of the cover plate 51, and the cantilever hook 52 has a J-shaped structure. The number of cantilever hooks 52 can be selected to be two, and the two cantilever hooks 52 are relatively spaced and arranged facing each other. The shell 1 is provided with a clamping hole 17 that cooperates with the cantilever hook 52, and the number of the clamping holes 17 corresponds to the number of the cantilever hooks 52. Reference Figure 4 The two cantilever hooks 52 are respectively inserted into the two hook holes 17, and the cantilever hooks 52 are used to abut the bottom of the housing 1 to fix the cover plate 51 on the housing 1. The lower surface of the cover plate 51 is provided with a protrusion 53. When the cover plate 51 is set on the housing 1, the protrusion 53 abuts against the seat 42 to effectively and securely fix the ferrule assembly 4 in the inner cavity 14. Preferably, the cover plate 51, the cantilever hook 52 and the protrusion 53 are integrally formed components.

[0068] refer to Figure 1 , 8 , 13, the tail sleeve 3 is rotatably arranged at the tail end of the shell 1. Specifically, a hinge column 12 is arranged on the shell 1, and the tail sleeve 3 is provided with a hinge hole 31 which is sleeved on the hinge column 12 to realize the hinge connection between the tail sleeve 3 and the shell 1. A block 13 with an inclined portion 131 is arranged on the outer wall of the tail end of the shell 1, and the number of the blocks 13 can be selected to be two, and the two blocks 13 are respectively arranged on the two outer walls of the tail end of the shell 1. The shell 1 is provided with a clearance groove 18 below the block 13, and the clearance groove 18 allows a certain gap between the inner wall of the tail sleeve 3 and the outer wall of the shell 1, so that tools such as blades can be inserted. The tail sleeve 3 is provided with a linear groove 32 that is engaged with the clamping block 13. When the optical cable clamping block 2 is assembled in the accommodating cavity 11, the tail sleeve 3 rotates around the housing 1 and is fixed by engaging with the clamping block 13 through the linear groove 32. The tail sleeve 3 is used to shield the optical fiber channel 15 and the opening of the accommodating cavity 11, and plays a protective and dust-proof role for the external optical cable. When it is necessary to disassemble the tail sleeve 3 and the housing 1, a tool such as a blade is inserted into the clearance groove 18 from the bottom of the housing 1, and the blade is pressed against the inner wall of the tail sleeve 3 to deform and stretch the tail sleeve 3. At this time, the clamping block 13 is separated from the linear groove 32, and the tail sleeve 3 and the housing 1 can be disassembled.

[0069] refer to Figure 1 The front sleeve 6 is used to be mounted on the front end of the housing 1, and is used to connect with other normal connector ports, and at the same time protects the ferrule assembly 4 and prevents dust. The connection between the front sleeve 6 and the housing 1 is a general structure of the existing embedded optical fiber connector, so the specific structure of the front sleeve 6 is omitted. As a preferred embodiment, reference Fig.16A slot 61 is provided on the upper surface of the front sleeve 6, so that components such as a push clip can be inserted into the slot 61 and engage with the lock buckle 44, and the lock buckle 44 can be moved by pushing the push clip forward and backward, thereby realizing the locking or unlocking function.

[0070] The assembly process of the optical fiber connector of the present invention is as follows: first, the assembled ferrule assembly 4 is installed into the inner cavity 14 of the housing 1; then the fastener 5 is clamped on the housing 1 through the cantilever hook 52 and the protrusion 53 abuts against the ferrule assembly 4 to prevent the ferrule assembly 4 from falling out, and the front sleeve 6 is sleeved on the front end of the housing 1; then the external optical cable is passed through the cable groove 213 of the cable clamp block 2 and the cable clamp block 2 is clamped. Assembled into the accommodating cavity 11 of the shell 1, during the directional movement of the optical cable clamp block 2 along the accommodating cavity 11, the moving gap 112a between the guide block 212 and the guide groove 112 is located at the lower side of the guide groove 112, so that the protrusion 211 is separated from the bottom of the accommodating cavity 11, avoiding the protrusion 211 from pressing against the shell 1 and causing the shell 1 to deform. Subsequently, when the protrusion 211 moves to the position of the card slot 111, the guide block 212 moves downward along the width direction of the guide groove 112, so that the protrusion 211 is engaged in the card slot 111, and the moving gap 112a between the guide block 212 and the guide groove 112 is located at the upper side of the guide groove 112; part of the optical fiber of the external optical cable passes through the optical fiber channel 15 after being stripped and extends into the seat body 42 to dock with the pre-buried optical fiber; finally, the tail sleeve 3 rotates around the shell 1 so that the linear groove 32 of the tail sleeve 3 is engaged with the card block 13 of the shell 1, respectively protecting the external optical cable and the core assembly 4 and preventing dust.

[0071] In summary, the embodiment of the present invention provides a fiber optic connector, wherein the guide block 212 moves along the length direction of the guide groove 112 during the insertion of the optical cable clamp block 2 into the accommodating cavity 11, thereby improving the stability and accuracy of the installation of the optical cable clamp block 2 on the housing 1. At the same time, a moving gap 112a is reserved between the guide block 212 and the inner side wall 112b of the guide groove in the width direction of the guide groove 112, thereby preventing the protrusion 211 of the optical cable clamp block 2 from pressing against the bottom of the accommodating cavity 11 when the optical cable clamp block 2 moves in the accommodating cavity 11, thereby preventing the housing 1 from being deformed due to fatigue caused by the deformation, thereby improving the service life of the housing 1. Users can recycle the housing 1 and the optical cable clamp block 2, which can effectively save the use cost.

[0072] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative 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 representation of the above terms does 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.

[0073] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An optical fiber connector, comprising a housing and a cable clamp, wherein the rear end of the housing is provided with a housing cavity for accommodating the cable clamp, the housing cavity penetrates one side of the housing to form an insertion port for inserting the cable clamp, and the optical fiber connector comprises: A card slot is provided at the bottom of the accommodating cavity, and the optical cable clamp block is provided with a protrusion that engages with the card slot; a guide groove is provided on the inner side wall of the accommodating cavity, and the length direction of the guide groove is the same as the insertion direction of the optical cable clamp block in the accommodating cavity, and the optical cable clamp block is provided with a guide block that cooperates with the guide groove for guidance; a moving gap is reserved between the guide block and the inner side wall of the guide groove along the width direction of the guide groove.

2. The optical fiber connector according to claim 1, wherein: The number of the guide grooves is two, and the two guide grooves are respectively arranged on opposite inner side walls of the accommodating cavity.

3. The optical fiber connector according to claim 1, wherein: The optical cable clamp block comprises a body and a cover; The upper surface of the body is provided with a cable threading groove penetrating through both sides thereof and used for optical cables to pass through, and the cover body is used to cover the opening of the cable threading groove; The protrusion is arranged on the lower surface of the body, and the guide block is arranged on the outer side wall of the body.

4. The optical fiber connector according to any one of claims 1 to 3, characterized in that: Also includes a tail sleeve rotatably disposed at the tail end of the housing; A clamping block with an inclined portion is arranged on the outer side wall of the rear end of the shell, and a linear groove which is matched and clamped with the clamping block is opened in the tail sleeve.

5. The optical fiber connector according to any one of claims 1 to 3, characterized in that: Also included is a ferrule assembly for passing the pre-buried optical fiber; The shell is provided with an inner cavity for accommodating the ferrule assembly, and the inner cavity is communicated with the accommodating cavity through an optical fiber channel.

6. The optical fiber connector according to claim 5, characterized in that: The shell is located on both sides of the optical fiber channel and is respectively provided with deep blind grooves arranged along the length direction of the optical fiber channel.

7. The optical fiber connector according to claim 5, characterized in that: A first window for inserting the ferrule assembly into the inner cavity is formed on the side of the shell.

8. The optical fiber connector according to claim 7, wherein: The insert assembly includes a core body, a seat body, a pressure plate, and a lock; The core body has through holes running through both ends thereof, the first end of the core body is a plug-in end, and the outer side wall of the second end of the core body is provided with a groove portion communicating with the through holes; The seat body has through holes penetrating through its two ends, the seat body is sleeved on the outer side wall of the second end of the core body, and the second end surface of the core body is located in the seat body, and the outer side wall of the seat body is provided with a second window communicating with the through hole, and the second window corresponds to the groove portion; the seat body is sleeved with a spring at one end away from the plug end; The pressure plate cover is arranged on the second window; the locking sleeve is arranged on the outer side wall of the seat body and the pressure plate.

9. The optical fiber connector according to claim 8, wherein: Also included are fasteners; The fastener includes a cover plate and a cantilever hook arranged on the lower surface of the cover plate; The cover plate covers a partial area of ​​the first window; and the shell is provided with a clamping hole which is engaged with the cantilever clamping hook.

10. The optical fiber connector according to claim 9, wherein: The fastener also includes a protrusion disposed on the lower surface of the cover plate and used for abutting against the seat body.

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