Prefabricated optical cable connector

Abstract

The present invention relates to a prefabricated optical cable connector applied to the field of optical cable construction equipment, comprising a lower shell and an upper shell; a pre-buried optical fiber head is installed on the upper shell, and an alignment structure is provided on the lower shell and the upper shell, the alignment structure is used to align the pre-buried optical fiber head with the inserted optical fiber; the lower shell and the upper shell are clamped together by a self-locking mechanism, and the alignment structure and the self-locking mechanism are adopted to realize one-time operation to complete the installation and the alignment of the pre-buried optical fiber head with the inserted optical fiber, the upper shell moves synchronously with the pre-buried optical fiber head, and a circular hole for accommodating the optical fiber core part of the inserted optical fiber is formed between the limiting pressure strip and the optical fiber groove, thereby limiting the optical fiber core of the inserted optical fiber, so that the end of the inserted optical fiber is aligned with the tail end position of the pre-buried optical fiber head, and finally the two are abutted, so as to avoid the secondary operation affecting the alignment position of the inserted optical fiber and the pre-buried optical fiber head, the connection effect is good and the operation is simpler.

Description

Technical Field

[0001] The present invention relates to a connector, in particular to a prefabricated optical cable connector used in the field of optical cable construction equipment. Background Art

[0002] Prefabricated optical cable assemblies and adapters are indispensable optical communication connection elements for realizing fiber to the home (FTTH). They are mainly used in the "last mile" of FTTH optical cable to the home and are generally installed on optical communication distribution equipment near residential areas.

[0003] At present, the most commonly used connection methods are: adapters, pigtails and on-site assembled optical cable quick-connect assemblies, which have poor waterproof performance and can generally only be used indoors, and are rarely used in outdoor environments. Due to the poor waterproof performance, the above-mentioned optical cable assemblies can generally only be used inside optical communication equipment; each time the construction is carried out, the optical communication equipment must be turned on, and then the pigtails are inserted or the optical cable quick-connect assemblies are made on-site to terminate the optical cable. This not only prolongs the construction time, but also may affect the communication signals of customers who have been opened, and may also damage the optical cables that have been constructed inside. At the same time, when the on-site assembled optical cable quick-connect assemblies are produced on-site, the quality requirements of the construction personnel are often high. If the installation quality is not high, the optical signal will be greatly attenuated.

[0004] Therefore, existing optical cable splicing products cannot meet the requirements of construction workers for single-person operation, fast construction, plug-and-play, high quality and quality consistency.

[0005] To solve the above problems, the Chinese patent CN110297294B specification discloses a prefabricated optical cable assembly and a prefabricated optical cable connector, wherein the prefabricated optical cable assembly comprises an assembly main body component; an adapter docking assembly is provided at the first end of the assembly main body component, and an optical cable connection assembly is provided at the second end, and the interior of the assembly main body component is a hollow cavity; a guide mechanism is also provided at the first end of the assembly main body component, and the guide mechanism is used to cooperate with the guide mechanism on the adapter to guide the prefabricated optical cable assembly to dock with the adapter; the prefabricated optical cable connector comprises a prefabricated optical cable assembly and an adapter; the adapter comprises a fixing nut, an adapter body and a ceramic tube; the ceramic tube is arranged inside the adapter body, and the ceramic tube and the ceramic ferrule of the device pigtail and the ceramic ferrule of the prefabricated optical cable assembly are coaxially arranged; the fixing nut is sleeved on the outside of the adapter body, and the fixing nut is used to realize the connection and fixation between the adapter body and the housing of the device to be connected.

[0006] In the above-mentioned prior art, the various components of the prefabricated optical cable connector are mostly limited by rotational clamping or threaded connection. After the inserted optical fiber core is aligned with the preset optical fiber, in order to ensure the effectiveness of its alignment, it is usually necessary to keep the inserted optical fiber core bent to a certain extent. However, if rotation or other movement operations are required at this time, it may cause mutual friction and docking surface deviation between the inserted optical fiber core and the preset optical fiber, affecting subsequent use. Summary of the invention

[0007] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is how to provide a prefabricated optical cable connector that can complete the connection in one go, avoid secondary operations affecting the alignment position of the inserted optical fiber core and the preset optical fiber, and has good connection effect and simpler operation.

[0008] To solve the above problems, the present invention provides a prefabricated optical cable connector, comprising a lower housing and an upper housing;

[0009] The upper shell is provided with an embedded optical fiber head, and the lower shell and the upper shell are provided with an alignment structure, which is used to align the embedded optical fiber head with the inserted optical fiber;

[0010] The lower shell and the upper shell are clamped together by a self-locking mechanism. When the lower shell and the upper shell are clamped together by the self-locking structure, the ends of the inserted optical fiber and the pre-buried optical fiber head are aligned under the action of the alignment structure.

[0011] In the above-mentioned prefabricated optical cable connector, the embedded optical fiber head is aligned with the inserted optical fiber by utilizing the alignment structure, and the lower shell and the upper shell are clamped and fixed by utilizing the self-locking mechanism at the same time, thereby achieving the installation and alignment of the embedded optical fiber head and the inserted optical fiber in one operation, avoiding the influence of the secondary operation on the alignment position of the inserted optical fiber and the embedded optical fiber head, achieving a good connection effect and making the operation simpler.

[0012] As a further supplement to this application, the alignment structure includes:

[0013] An optical cable trough is provided at one end of the lower shell and has an opening formed at the top;

[0014] An optical fiber groove is provided at the other end of the lower housing and communicates with the optical cable groove, and an opening is also formed above the optical fiber groove;

[0015] A limiting pressure strip is fixed to the lower end of the upper shell body, the limiting pressure strip is slidably engaged in the optical fiber slot, an arc-shaped notch is arranged at the lower end of the limiting pressure strip, and a circular hole is formed between the arc-shaped notch and the bottom of the optical fiber slot;

[0016] The embedded optical fiber head is fixed in the arc-shaped notch at the lower end of the limiting pressure strip, and one end of the embedded optical fiber head extends out of the optical fiber groove to form a circular end portion;

[0017] When the limiting pressure strip is inserted and slidably engaged in the optical fiber groove and moves forward to stop, the other end of the embedded optical fiber head and the end of the inserted optical fiber are located in the circular hole between the arc notch and the bottom of the optical fiber groove and are aligned and abutted.

[0018] First, the inserted optical fiber is clamped on the lower shell body, so that the part inserted into the optical fiber ribbon cable is clamped in the optical cable groove, and the part inserted into the optical fiber core is clamped in the optical fiber groove. After that, the upper shell body moves synchronously with the embedded optical fiber head, and a circular hole for accommodating the inserted optical fiber core part is formed between the limiting pressure strip and the optical fiber groove, thereby limiting the optical fiber core of the inserted optical fiber, so that the end of the inserted optical fiber is aligned with the tail end of the embedded optical fiber head, and finally the two are abutted. At this time, the upper shell body is just clamped and fixed with the lower shell body through the self-locking mechanism, thereby completing the connection operation and achieving the effect of completing the connection and alignment at one time.

[0019] As a further supplement to this application, the self-locking mechanism includes:

[0020] A slide groove is provided on the upper surface of the lower shell and is arranged parallel to the optical cable groove or the optical fiber groove. One end of the slide groove forms an opening at the end of the lower shell away from the opening of the optical cable groove. Side grooves are provided on the side walls on opposite sides of the slide groove. A limit groove extending upward is formed at the end of the side groove away from the opening of the slide groove.

[0021] The slide bar is fixed to the ground of the upper shell body. An elastic clamp is installed on the slide bar. When the elastic clamp is located in the limiting groove, it is clamped with the limiting groove. At this time, the slide bar is clamped and fixed with the slide groove.

[0022] The lower shell and the upper shell are slidably connected by means of the slide bar and the slide groove, and are further fixed by means of the elastic clamp and the limit groove, so as to achieve the effect of self-locking connection.

[0023] As a further supplement to the present application, a release assembly is installed on the upper shell, which includes a locking rod and a tension spring that constitute an elastic clip. The two ends of the locking rod slide in two side grooves on both sides of the slide groove, and the upper end of the locking rod is elastically connected to the bottom surface of the upper shell through a tension spring.

[0024] When the slide bar is slidably connected with the slide groove, the locking rod slides in the side groove. When the locking rod slides to the limit groove, the elastic action of the tension spring causes the locking rod to slide upward along the limit groove, so that the locking rod cannot continue to slide along the side groove, thereby achieving the purpose of self-locking card connection. The structure is simple and reliable.

[0025] As a further supplement to the present application, the release assembly also includes a pressure rod and a connecting rod. The pressure rod is located above the upper shell, and the upper and lower ends of the connecting rod are respectively fixed to the lower end of the pressure rod and the upper end of the locking rod, and the connecting rod slides through the upper shell.

[0026] By pressing the pressure rod to drive the connecting rod down, the connecting rod drives the locking rod below to descend, and the locking rod descends into the side groove. At this time, the staff only needs to pull the upper shell at the same time to separate the upper shell from the lower shell to complete the disassembly of the prefabricated optical cable connector. Compared with the multiple operations in the prior art, this operation step is simpler and convenient for subsequent use and replacement.

[0027] As a further supplement to the present application, a mounting hole for installing a locking rod and a tension spring is provided on the slide bar, and the lower end of the connecting rod is also located in the mounting hole.

[0028] As a further supplement to the present application, a guide groove is provided at the opening of the side groove, and the tail end of the slide bar is integrally formed with a blocking tail block that is compatible with the guide groove. Through the setting of the guide groove, when the slide bar is inserted into the slide groove, the guide groove guides the locking rod so that the locking rod moves downward along the inclined surface of the guide groove and finally enters the slide groove, thereby achieving the effect of automatically pressing the locking rod down to make it cooperate with the slide groove, which is conducive to achieving a self-locking connection.

[0029] As a further supplement to the present application, two flexible limiting convex strips are fixed to the inner side wall of the optical cable groove, and the two flexible limiting convex strips are symmetrically arranged about the central axis of the optical cable groove. After the optical fiber is inserted into the optical cable groove, the convex surfaces of the two flexible limiting convex strips abut against the surface of the inserted optical fiber.

[0030] Two flexible limiting convex strips are used to limit the circumference of the inserted optical fiber, so that the inserted optical fiber can be temporarily limited after being inserted into the optical cable groove, avoiding the inserted optical fiber from being displaced forward and backward during the installation process. At the same time, it can continue to limit the inserted optical fiber after the installation is completed, ensuring the stability of the inserted optical fiber after connection.

[0031] As a further supplement to the present application, a sealing groove is provided at one end of the lower shell body away from the optical cable groove, and a sealing ring adapted to the sealing groove is provided at the fixed sleeve at the end of the embedded optical fiber head.

[0032] As a further supplement to the present application, the walls of the arc-shaped notch and the bottom of the optical fiber groove are provided with fine textures or coated with an anti-slip coating, so that the optical fiber core inserted into the optical fiber is not easy to move after entering between the arc-shaped notch and the optical fiber groove, thereby increasing the friction between the prefabricated optical cable connector and the inserted optical fiber, which helps to ensure a stable connection of the inserted optical fiber.

[0033] In summary, the inserted optical fiber is first clamped on the lower shell, so that the part of the optical fiber ribbon cable inserted is clamped in the optical cable groove, and the part of the optical fiber core inserted is clamped in the optical fiber groove. After that, the upper shell moves synchronously with the embedded optical fiber head, and a circular hole for accommodating the part of the optical fiber core inserted is formed between the limiting pressure strip and the optical fiber groove, thereby limiting the optical fiber core of the inserted optical fiber, so that the end of the inserted optical fiber is aligned with the tail end of the embedded optical fiber head, and finally the two are abutted;

[0034] The lower shell and the upper shell are slidably connected by the slide bar and the slide groove, and are further connected and fixed by the elastic clamp and the limit groove. Specifically, when the slide bar and the slide groove are slidably connected, the lock rod slides in the side groove. When the lock rod slides to the limit groove, the elastic action of the tension spring causes the lock rod to slide upward along the limit groove, so that the lock rod cannot continue to slide along the side groove, thereby achieving the purpose of self-locking connection. The structure is simple and reliable.

[0035] The embedded optical fiber head and the inserted optical fiber are aligned by using the alignment structure, and the lower shell and the upper shell are clamped and fixed by using the self-locking mechanism at the same time, so that the installation and the alignment of the embedded optical fiber head and the inserted optical fiber can be completed in one operation, avoiding the influence of the secondary operation on the alignment position of the inserted optical fiber and the embedded optical fiber head, the connection effect is good and the operation is simpler. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic diagram of the overall structure of the first implementation method of the present application;

[0037] Figure 2 This is a schematic diagram of the structure when the lower shell and the upper shell are separated in the first embodiment of the present application;

[0038] Figure 3 This is a schematic diagram of the upper shell of the first embodiment of the present application from the elevation axis side;

[0039] Figure 4 This is a front view and a partial enlarged view of the upper shell of the first embodiment of the present application;

[0040] Figure 5 This is a cross-sectional view and a partial enlarged view of the lower shell of the first embodiment of the present application;

[0041] Figure 6 This is a schematic diagram of the structure of the liberation component of the first implementation mode of this application;

[0042] Figure 7 This is a side view of the upper shell of the first embodiment of the present application;

[0043] Figure 8 This is a side view of the lower housing of the first embodiment of the present application;

[0044] Fig. 9 This is a side view of the first embodiment of the present application when the lower shell and the upper shell are connected.

[0045] Description of the numbers in the figure:

[0046] 1. Lower shell; 11. Cable groove; 12. Optical fiber groove; 13. Slide groove; 131. Side groove; 1311. Limit groove; 1312. Guide groove; 14. Sealing groove; 2. Upper shell; 21. Limiting strip; 211. Arc-shaped notch; 22. Slide strip; 221. Sealing tail block; 222. Mounting hole; 3. Plug-in block; 4. Embedded optical fiber head; 5. Sealing ring; 6. Release assembly; 61. Pressure rod; 62. Connecting rod; 63. Locking rod; 64. Tension spring; 7. Flexible limiting convex strip; a. Insert optical fiber. DETAILED DESCRIPTION

[0047] An implementation method of the present application is described in detail below with reference to the accompanying drawings.

[0048] The first implementation method:

[0049] The present invention provides a prefabricated optical cable connector, see Figure 1-Figure 5 , comprising a lower shell 1 and an upper shell 2, both sides of the lower shell 1 and the upper shell 2 are fixed with plug-in blocks 3, and the prefabricated optical cable connector is detachably connected to the adapter through the plug-in blocks 3. The adapter is an adapter commonly used in the prior art and suitable for the present embodiment;

[0050] The upper shell 2 is provided with a pre-buried optical fiber head 4, and the lower shell 1 and the upper shell 2 are provided with an alignment structure, which is used to align the pre-buried optical fiber head 4 with the inserted optical fiber a;

[0051] The lower shell 1 and the upper shell 2 are clamped together by a self-locking mechanism. When the lower shell 1 and the upper shell 2 are clamped together by the self-locking structure, the ends of the inserted optical fiber a and the embedded optical fiber head 4 are aligned under the action of the alignment structure.

[0052] Based on the above structure, the embedded optical fiber head 4 is aligned with the inserted optical fiber a using the alignment structure, and the lower shell 1 and the upper shell 2 are clamped and fixed using the self-locking mechanism at the same time, so that the installation and the alignment of the embedded optical fiber head 4 and the inserted optical fiber a can be completed in one operation, avoiding the secondary operation that affects the alignment position of the inserted optical fiber a and the embedded optical fiber head 4, and the connection effect is good and the operation is simpler.

[0053] Figure 2-Figure 3 , Figure 7 as well as Fig. 9 The alignment structure shown includes:

[0054] An optical cable trough 11, which is disposed at one end of the lower housing 1 and has an opening at the top;

[0055] An optical fiber groove 12 is provided at the other end of the lower housing 1 and communicates with the optical cable groove 11. An opening is also formed above the optical fiber groove 12;

[0056] A limiting pressure strip 21 is fixed to the lower end of the upper shell 2, and the limiting pressure strip 21 is slidably engaged in the optical fiber slot 12. An arc-shaped notch 211 is provided at the lower end of the limiting pressure strip 21, and a circular hole is formed between the arc-shaped notch 211 and the bottom of the optical fiber slot 12;

[0057] The arc-shaped notch 211 and the wall at the bottom of the optical fiber groove 12 are both provided with fine lines or coated with an anti-slip coating (not shown in the figure), so that the optical fiber core inserted into the optical fiber a is not easy to move after entering between the arc-shaped notch 211 and the optical fiber groove 12, thereby increasing the friction between the prefabricated optical cable connector and the inserted optical fiber a, which is conducive to the stable connection of the inserted optical fiber a;

[0058] The embedded optical fiber head 4 is fixed in the arc-shaped notch 211 at the lower end of the limiting pressure strip 21, and one end of the embedded optical fiber head 4 extends out of the optical fiber groove 12 to form a round end portion;

[0059] When the limiting pressure strip 21 is inserted and slidably engaged in the optical fiber groove 12 and moves forward to stop, the other end of the embedded optical fiber head 4 is aligned with the circular hole between the arc notch 211 and the bottom of the optical fiber groove 12 where the end of the inserted optical fiber a is located.

[0060] First, the inserted optical fiber a is clamped on the lower shell 1, so that the part of the inserted optical fiber a with the optical cable is clamped in the optical cable groove 11, and the part of the optical fiber core of the optical fiber a is clamped in the optical fiber groove 12. After that, the upper shell 2 moves synchronously with the embedded optical fiber head 4, and a circular hole for accommodating the optical fiber core part of the inserted optical fiber a is formed between the limiting pressure strip 21 and the optical fiber groove 12, thereby limiting the optical fiber core of the inserted optical fiber a, so that the end of the inserted optical fiber a is aligned with the tail end of the embedded optical fiber head 4, and finally the two are abutted. At this time, the upper shell 2 is just clamped and fixed with the lower shell 1 through the self-locking mechanism, thereby completing the connection operation and achieving the effect of completing the connection and alignment at one time.

[0061] Figure 2 , Figure 4-Figure 5 The self-locking mechanism shown includes:

[0062] The slide groove 13 is provided on the upper surface of the lower housing 1 and is arranged parallel to the optical cable groove 11 or the optical fiber groove 12. One end of the slide groove 13 is formed with an opening at the end of the lower housing 1 away from the opening of the optical cable groove 11. Side grooves 131 are provided on the side walls on opposite sides of the slide groove 13. A limiting groove 1311 extending upward is formed at one end of the side groove 131 away from the opening of the slide groove 13.

[0063] The slide bar 22 is fixed to the ground of the upper shell 2. An elastic clamp is installed on the slide bar 22. When the elastic clamp is located in the limiting groove 1311, it is clamped with the limiting groove 1311. At this time, the slide bar 22 is clamped and fixed with the slide groove 13;

[0064] A release assembly 6 is installed on the upper shell 2, and the release assembly 6 includes a locking rod 63 and a tension spring 64 that constitute an elastic clamp. Both ends of the locking rod 63 slide in two side grooves 131 on both sides of the slide groove 13, and the upper end of the locking rod 63 is elastically connected to the bottom surface of the upper shell 2 through the tension spring 64.

[0065] The lower shell 1 and the upper shell 2 are slidably connected through the slide bar 22 and the slide groove 13. When the slide bar 22 and the slide groove 13 are slidably connected, the locking rod 63 slides in the side groove 131. When the locking rod 63 slides to the limiting groove 1311, the elastic action of the tension spring 64 causes the locking rod 63 to slide upward along the limiting groove 1311, so that the locking rod 63 cannot continue to slide along the side groove 131, thereby achieving the purpose of self-locking card connection, and the structure is simple and reliable.

[0066] Figure 4 and Figure 6 The release assembly 6 is shown to further include a pressure rod 61 and a connecting rod 62 . The pressure rod 61 is located above the upper shell 2 . The upper and lower ends of the connecting rod 62 are respectively fixed to the lower end of the pressure rod 61 and the upper end of the locking rod 63 . The connecting rod 62 slides through the upper shell 2 .

[0067] By pressing the pressure rod 61 to drive the connecting rod 62 down, the connecting rod 62 drives the locking rod 63 below to descend, and the locking rod 63 descends into the side groove 131. At this time, the staff only needs to pull the upper shell 2 at the same time to separate the upper shell 2 from the lower shell 1 to complete the disassembly of the prefabricated optical cable connector. Compared with the multiple operations in the prior art, this operation step is simpler and convenient for subsequent use and replacement.

[0068] The slide bar 22 is provided with a mounting hole 222 for mounting the locking rod 63 and the tension spring 64 , and the lower end of the connecting rod 62 is also located in the mounting hole 222 .

[0069] Figure 4-Figure 5 It is shown that a guide groove 1312 is provided at the opening of the side groove 131, and a blocking tail block 221 adapted to the guide groove 1312 is integrally formed at the tail end of the slide bar 22. Through the setting of the guide groove 1312, when the slide bar 22 is inserted into the slide groove 13, the guide groove 1312 guides the locking rod 63, so that the locking rod 63 moves downward along the inclined surface of the guide groove 1312 and finally enters the slide groove 13, thereby achieving the effect of automatically pressing the locking rod 63 downward to make it cooperate with the slide groove 13, which is conducive to achieving a self-locking connection.

[0070] Figure 8-Figure 9 It is shown that two flexible limiting ridges 7 are fixed to the inner wall of the optical cable groove 11. The two flexible limiting ridges 7 are symmetrically arranged about the central axis of the optical cable groove 11. After the optical fiber a is inserted into the optical cable groove 11, the convex surfaces of the two flexible limiting ridges 7 abut against the surface of the inserted optical fiber a.

[0071] Two flexible limiting convex strips 7 are used to limit the circumference of the inserted optical fiber a, so that the inserted optical fiber a can be temporarily limited after being inserted into the optical cable groove 11, avoiding the inserted optical fiber a from being displaced forward and backward during the installation process. At the same time, it can also continue to limit the inserted optical fiber a after the installation is completed, ensuring the stability of the inserted optical fiber a after the connection

[0072] Figure 2 It is shown that a sealing groove 14 is provided at one end of the lower housing 1 away from the optical cable groove 11 , and a sealing ring 5 adapted to the sealing groove 14 is fixedly sleeved on the end of the embedded optical fiber head 4 .

[0073] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A prefabricated optical cable connector, comprising a lower housing (1) and an upper housing (2), Features: The upper shell (2) is provided with a pre-buried optical fiber head (4), and the lower shell (1) and the upper shell (2) are provided with an alignment structure, the alignment structure being used to align the pre-buried optical fiber head (4) with the inserted optical fiber (a); The lower shell (1) and the upper shell (2) are engaged by a self-locking mechanism, and when the lower shell (1) and the upper shell (2) are engaged by the self-locking structure, the ends of the inserted optical fiber (a) and the embedded optical fiber head (4) are aligned under the action of the alignment structure; The alignment structure comprises: An optical cable trough (11), the optical cable trough (11) being disposed at one end of the lower housing (1) and having an opening formed at the top; An optical fiber groove (12), the optical fiber groove (12) being opened at the other end of the lower housing (1) and being in communication with the optical cable groove (11), and an opening being also formed above the optical fiber groove (12); A limiting pressure strip (21), the limiting pressure strip (21) being fixed to the lower end of the upper shell (2), the limiting pressure strip (21) being slidably engaged in the optical fiber slot (12), the lower end of the limiting pressure strip (21) being provided with an arc-shaped notch (211), and a circular hole being formed between the arc-shaped notch (211) and the bottom of the optical fiber slot (12); The embedded optical fiber head (4) is fixed in the arc-shaped notch (211) at the lower end of the limiting pressure strip (21), and one end of the embedded optical fiber head (4) extends out of the optical fiber groove (12) to form a circular end portion; When the limiting pressure strip (21) is inserted and slidably engaged in the optical fiber groove (12) and moves forward to stop, the other end of the embedded optical fiber head (4) and the end of the inserted optical fiber (a) are located in the circular hole between the arc-shaped notch (211) and the bottom of the optical fiber groove (12) and are aligned and abutted.

2. A prefabricated optical cable connector according to claim 1, Features: The self-locking mechanism comprises: A slide groove (13), the slide groove (13) being provided on the upper surface of the lower shell (1) and being arranged parallel to the optical cable groove (11) or the optical fiber groove (12), one end of the slide groove (13) forming an opening at an end of the lower shell (1) away from the opening of the optical cable groove (11), side walls on opposite sides of the slide groove (13) are provided with side grooves (131), and an end of the side groove (131) away from the opening of the slide groove (13) is formed with a limit groove (1311) extending upward; A slide bar (22), the slide bar (22) being fixed to the ground of the upper shell (2), the slide bar (22) being provided with an elastic clamping piece, the elastic clamping piece being clamped with the limiting groove (1311) when located in the limiting groove (1311), at which time the slide bar (22) is clamped and fixed with the slide groove (13).

3. A prefabricated optical cable connector according to claim 2, Features: A release assembly (6) is mounted on the upper shell (2), and the release assembly (6) comprises a locking rod (63) and a tension spring (64) constituting an elastic clamp, the two ends of the locking rod (63) slide in two side grooves (131) on both sides of the slide groove (13), and the upper end of the locking rod (63) is elastically connected to the bottom surface of the upper shell (2) via the tension spring (64).

4. A prefabricated optical cable connector according to claim 3, Features: The release assembly (6) further comprises a pressure rod (61) and a connecting rod (62), wherein the pressure rod (61) is located above the upper shell (2), and the upper and lower ends of the connecting rod (62) are respectively fixed to the lower end of the pressure rod (61) and the upper end of the locking rod (63), and the connecting rod (62) slides through the upper shell (2).

5. The prefabricated optical cable connector according to claim 4, Features: The slide bar (22) is provided with a mounting hole (222) for mounting a locking rod (63) and a tension spring (64), and the lower end of the connecting rod (62) is also located in the mounting hole (222).

6. The prefabricated optical cable connector according to claim 2, Features: A guide groove (1312) is provided at the opening of the side groove (131), and a blocking tail block (221) adapted to the guide groove (1312) is integrally formed at the tail end of the slide bar (22).

7. The prefabricated optical cable connector according to claim 1, Features: Two flexible limiting convex strips (7) are fixed to the inner side wall of the optical cable groove (11), and the two flexible limiting convex strips (7) are symmetrically arranged about the central axis of the optical cable groove (11), and the convex surfaces of the two flexible limiting convex strips (7) abut against the surface of the inserted optical fiber (a) after the optical fiber (a) is inserted into the optical cable groove (11).

8. The prefabricated optical cable connector according to claim 1, Features: A sealing groove (14) is provided at one end of the lower shell (1) away from the optical cable groove (11), and a sealing ring (5) adapted to the sealing groove (14) is fixedly sleeved at the end of the embedded optical fiber head (4).

9. The prefabricated optical cable connector according to claim 1, Features: The arc-shaped notch (211) and the wall at the bottom of the optical fiber slot (12) are both provided with fine lines or coated with an anti-slip coating.

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