Optical fiber network connecting device for storage yard socket box

Abstract

The invention relates to the technical field of optical fiber network connecting devices, and particularly discloses a storage yard socket box optical fiber network connecting device which comprises a plug arranged in a socket box. The inner side wall of one end of the plug is coaxially in threaded connection with a shrinkage pipe; an insertion plate is arranged on the outer side wall of the shrinkage joint pipe; an optical fiber box is mounted on the outer side wall of the plugboard; a concave plate is fixedly connected to the side wall, close to the insertion plate, of the optical fiber box; the concave plate can cover the outer side wall of the insertion plate, and the inner wall of the concave plate is in sliding fit with the outer wall of the insertion plate; a fixing mechanism is arranged in the insertion plate; the fixing mechanism can realize detachable connection between the concave plate and the insertion plate; the optical fiber box is installed on the plug through the cooperation of the concave plate, the insertion plate and the fixing mechanism by taking the shrinkage joint pipe as a carrier, the installation mode is simple and convenient, the disassembly is convenient, the trouble of bolt fixation is reduced, and the labor intensity of the installation time is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of optical fiber network connection devices, in particular to an optical fiber network connection device for a yard socket box. Background Art

[0002] The socket box, also known as the industrial socket box, is mainly composed of a box body, an industrial plug, an industrial socket, a waterproof protection window and electrical components. During the yard construction phase, it is necessary to fully understand the overall structure and distribution of the socket box in the yard, and design the laying of the optical fiber box, so as to minimize the impact on the facilities.

[0003] In the prior art, when installing a fiber optic box in a socket box, the fiber optic box is mostly installed outside the plug and fixed by bolts. The bolt fixing method requires a wrench to rotate the bolts during installation and removal. However, other electrical components are arranged in the socket box, and the space is relatively narrow. The bolt fixing method is inconvenient to operate and is time-consuming and laborious. Summary of the invention

[0004] The present application provides a fiber optic network connection device for a yard socket box, which is convenient for workers to install and remove the fiber optic box in the socket box in a narrow space.

[0005] The fiber optic network connection device for the yard socket box provided in this application adopts the following technical solution: The fiber optic network connection device of the yard socket box comprises a plug arranged in the socket box; a reduction tube is coaxially threadedly connected on the inner wall of one end of the plug; a plug plate is arranged on the outer wall of the reduction tube; an optical fiber box is installed on the outer wall of the plug plate; a concave plate is fixedly connected to the side wall of the optical fiber box close to the plug plate; the concave plate can be covered on the outer wall of the plug plate, and the inner wall of the concave plate and the outer wall of the plug plate are slidably matched; a fixing mechanism is arranged in the plug plate; the fixing mechanism can realize the detachable connection between the concave plate and the plug plate.

[0006] By adopting the above technical solution, when installing the optical fiber box, the concave plate connected to the optical fiber box is aligned with the position of the plug-in plate and covered on the outside of the plug-in plate. The concave plate and the plug-in plate are fixed by the fixing mechanism provided in the plug-in plate. The reduction tube is used as a carrier, and the optical fiber box is installed on the plug through the cooperation of the concave plate, the plug-in plate and the fixing mechanism. The overall installation method is simple and convenient, easy to disassemble, reduces the trouble of fixing with bolts, and reduces the labor intensity of the installation time.

[0007] Preferably, a first groove is provided on the outer wall of the plug plate; a socket matching the position of the first groove is provided on the inner wall of the concave plate; the fixing mechanism includes an insert block and a pull rope assembly; the insert block is slidably connected to the inner wall of the first groove through a first spring, the end of the insert block away from the first spring extends to the outside of the plug plate and can slide with the inner wall of the socket, and the insert block is provided with a first inclined surface at the end extending outside the plug plate; a first rounded corner that can contact and cooperate with the first inclined surface is provided on the inner wall of the concave plate; on the plug plate where the pull rope assembly is provided, the pull rope assembly can make the insert block slide in the direction of compressing the first spring and retract into the first groove.

[0008] By adopting the above technical solution, the concave plate is inserted on the plug plate to push the concave plate to slide, so that the concave plate cover is arranged on the outside of the plug plate. When the concave plate contacts the plug block during the sliding process, the concave plate will squeeze the plug block to slide toward the inside of the first groove and compress the first spring under the cooperation of the first fillet and the first inclined surface. When the concave plate slides to the end of the stroke, the first groove is aligned with the position of the plug hole, and the plug block slides back and is stuck into the plug hole under the elastic force of the first spring, thereby realizing automatic fixation of the concave plate cover after being arranged on the outside of the plug plate. When the optical fiber box needs to be disassembled, the plug block can slide out of the plug hole and retract into the first groove through the pull rope assembly, so as to realize the separation of the concave plate and the plug plate.

[0009] Preferably, a cavity is provided in the plug board, which is located on the side of the first groove away from the plug hole; the cavity is provided with a first connecting hole on the inner side wall close to the first groove; the first connecting hole connects the first groove and the cavity; a second connecting hole is provided on the inner side wall at the top of the cavity; the second connecting hole connects the cavity and the top surface of the plug board; the pulling rope assembly includes a guide wheel, a winding roller and a pull rope; the guide wheel is rotatably connected to the inner side wall of the cavity, and the winding roller is rotatably connected to the top surface of the plug board through a support frame; one end of the pull rope is fixedly connected to the side wall of the plug block connected to the first spring, and the other end of the pull rope passes through the first connecting hole, extends into the cavity, bypasses the guide wheel, and passes through the second connecting hole and is fixedly connected to the outer side wall of the winding roller.

[0010] By adopting the above technical solution, the staff reels the pull rope by rotating the reel. During the reeling process, the pull rope pulls the plug block to slide toward the inside of the first groove and compresses the first spring, causing the plug block to slide out of the socket, thereby losing the limiting and fixing effect on the concave plate, so as to achieve the separation of the concave plate and the plug plate. The guide wheel is provided to guide the traction direction of the pull rope, so that the pull rope can apply force to the plug block to pull the plug block to slide during the reeling process.

[0011] Preferably, the plug plate includes a first connecting plate and a second connecting plate; the first connecting plate is fixedly connected to the outer side wall of the reduction tube; the second connecting plate is detachably mounted on the outer side wall of the first connecting plate away from the reduction tube by bolts; the second connecting plate cooperates with the first connecting plate to form a first groove and a cavity located on the second connecting plate; the support frame is installed on the top surface of the first connecting plate; the concave plate can be covered on the outside of the first connecting plate and the second connecting plate, and the concave plate is slidably matched with the outer walls of the first connecting plate and the second connecting plate.

[0012] By adopting the above technical solution, the plug board is configured as a structure that can be assembled by the first connecting plate and the second connecting plate, which facilitates the processing and forming of the first groove and the cavity and the installation of various components in the plug board, and is convenient for staff to inspect and replace the components in the plug board.

[0013] Preferably, one end of the winding roller is coaxially fixedly connected with a hand wheel located outside the support frame; the hand wheel is rotatably matched with the support frame.

[0014] By adopting the above technical solution, the staff can drive the winding roller to rotate by turning the hand wheel, thereby conveniently realizing the winding and unwinding work of the winding roller on the pull rope.

[0015] Preferably, an annular concave surface is provided on the outer peripheral surface of the guide wheel; and the pull rope passes around the annular concave surface.

[0016] By adopting the above technical solution, the setting of the annular concave surface plays a limiting role on the pull rope bypassing the guide wheel, making it difficult for the pull rope to escape from the outer peripheral surface of the guide wheel, thereby ensuring the guiding effect of the guide wheel on the pull rope.

[0017] Preferably, the optical fiber box comprises a box body and a cover plate; the box body is fixedly connected to the side wall of the concave plate away from the second connecting plate, and notches are provided on the two side walls of the box body away from each other; the cover plate is arranged on the side wall of the box body away from the concave plate, and blocks are provided at positions corresponding to the two notches on the side walls of the cover plate; the block can be inserted into the notch, the block slides with the inner wall of the notch, and a through hole is provided on the block; a second groove is provided on the inner wall of the notch at a position corresponding to the through hole; a latch member which can be inserted into the through hole to fix the cover plate and the box body is provided in the second groove.

[0018] By adopting the above technical solution, after the optical fiber is installed inside the box body, the cover plate is placed on the box body so that the block on the cover plate is inserted into the notch on the side wall of the box body to limit the cover plate, and the cover plate is fixed to the box body by the latch member provided in the second groove, thereby realizing the overall assembly of the optical fiber box.

[0019] Preferably, the latch member includes a limit block; the limit block is slidably connected to the inner wall of the second groove through a second spring, the end of the limit block away from the second spring extends outside the second groove and can slide with the inner wall of the through hole, and the limit block is provided with a second inclined surface at the end extending outside the second groove; the end face side wall of the clamping block away from the cover plate is provided with a second fillet that can contact and cooperate with the second inclined surface.

[0020] By adopting the above technical solution, the card block is aligned with the notch position and the cover plate is installed on the box body. When the card block contacts the limit block, under the cooperation of the second fillet and the second inclined surface, the card block will squeeze the limit block to slide toward the inside of the second groove and compress the second spring. When the card block slides to the end of the stroke, the second groove is aligned with the through hole position, and the limit block slides back and is installed in the through hole under the elastic force of the second spring to fix the card block, so as to realize automatic fixation of the cover plate after being installed on the box body.

[0021] Preferably, the blocking block is fixedly connected to a guide rod on the outer wall where the through hole is located; the outer wall of the guide rod is sleeved with a slide plate that slidably cooperates with the guide rod; a top block that can be slidably inserted into the through hole is fixedly connected to the position of the through hole on the side wall of the slide plate; the top block can fill the through hole to cause the limit block to retract into the second groove.

[0022] By adopting the above technical solution, when the cover plate needs to be removed, the slide plate can be pushed to slide along the outer wall of the guide rod, causing the top block on the side wall of the slide plate to slide into the through hole, squeezing the limit block out of the through hole and retracting into the second groove; when the slide plate moves to contact the side wall of the card block, the top block just fills the through hole, and at this time the limit block loses its fixing effect on the card block, so that the staff can remove the cover plate.

[0023] 1. Install the reduction tube at the end of the plug, and install the fiber optic box cover connected with the concave plate on the plug plate. The reduction tube is used as a carrier, and the fiber optic box is installed on the plug through the cooperation of the concave plate, the plug plate and the fixing mechanism. The installation method is simple and convenient, reducing the time-consuming and inconvenient trouble of tightening the bolts in a narrow space. 2. By setting the plug board to be a structure composed of a first connecting plate and a second connecting plate, the processing and forming of the first groove, the cavity, the first connecting hole and the second connecting hole, as well as the installation and setting of various parts in the plug board are facilitated, so that the staff can easily inspect and replace the parts in the plug board; 3. The staff turns the hand wheel to drive the reel to reel in the pull rope, causing the plug to slide out of the socket and retract into the first groove, so that the plug loses its limiting and fixing effect on the concave plate, making it easier for the staff to remove the concave plate together with the fiber optic box. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the fiber optic network connection device of the yard socket box; Figure 2 It is a schematic diagram of the matching structure of the reduction tube, the plug plate and the concave plate in the present application; Figure 3 It is a schematic diagram of the exploded structure of the concave plate and the plug plate in the present application; Figure 4 It is a schematic diagram of the matching structure of the first connecting plate and the fixing mechanism in the present application; Figure 5 It is a schematic diagram of the structure of the guide wheel in this application; Figure 6 It is a schematic diagram of the exploded structure of the optical fiber box in this application; Figure 7 It is a schematic diagram of the matching structure of the box body, cover plate, card block and latch member in this application; Figure 8 It is a schematic diagram of the installation structure of the slide plate and the top block on the clamping block in this application.

[0025] Explanation of the reference numerals in the accompanying drawings: 1. plug; 2. reduction tube; 3. plug plate; 31. first groove; 32. cavity; 33. first connecting hole; 34. second connecting hole; 35. first connecting plate; 36. second connecting plate; 4. optical fiber box; 41. box body; 411. notch; 412. second groove; 42. cover plate; 43. block; 431. through hole; 44. latch member; 441. limit block; 442. second spring; 45. guide rod; 46. slide plate; 47. top block; 5. concave plate; 51. plug hole; 6. fixing mechanism; 61. plug block; 62. pull rope assembly; 621. guide wheel; 622. take-up roller; 623. pull rope; 624. support frame; 625. hand wheel; 626. annular concave surface; 63. first spring. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below with reference to the accompanying drawings. The same components are denoted by the same reference numerals. It should be noted that the terms "front", "rear", "left", "right", "upper", "lower", "bottom" and "top" used in the following description refer to directions in the accompanying drawings, and the terms "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0027] The present invention discloses a fiber optic network connection device for a yard socket box, such as Figure 1 and Figure 2As shown, it includes a plug 1, a reduction tube 2, a plug plate 3 and a fiber optic box 4 arranged in the socket box, one end of the reduction tube 2 is coaxially threadedly connected to the inner wall of one end of the plug 1, the plug plate 3 is arranged on the outer wall of the reduction tube 2, the plug plate 3 includes a first connecting plate 35 and a second connecting plate 36, the first connecting plate 35 is fixedly connected to the outer wall of the reduction tube 2, the second connecting plate 36 is detachably mounted on the side wall of the first connecting plate 35 away from the reduction tube 2 by a group of bolts, the fiber optic box 4 is arranged on a side of the second connecting plate 36 away from the first connecting plate 35, and a concave plate 5 is fixedly connected to the side wall of the fiber optic box 4 close to the second connecting plate 36, the concave plate 5 can be covered and installed on the outside of the first connecting plate 35 and the second connecting plate 36 to achieve fixation, and the two side walls of the concave plate 5 are slidably matched with the outer walls of the first connecting plate 35 and the second connecting plate 36.

[0028] The reduction tube 2 is installed at the end of the plug 1, and the optical fiber box 4 equipped with a concave plate 5 is covered and installed on the plug plate 3. The reduction tube 2 is used as a carrier, and the optical fiber box 4 is installed on the plug 1 through the mutual cooperation of the concave plate 5 and the plug plate 3. The installation method is simple and convenient, reducing the time-consuming fixation with bolts and the trouble of tightening the bolts in a narrow space.

[0029] like Figure 3 and Figure 4 As shown, the first connecting plate 35 is provided with a pair of first grooves 31 and a cavity 32 formed in cooperation with the second connecting plate 36, the pair of first grooves 31 are respectively located on two side walls of the first connecting plate 35 away from each other, the cavity 32 is located in the middle of the two first grooves 31, and the concave plate 5 is provided with a pair of jacks 51 which can respectively correspond to the positions of the two first grooves 31 on the two side walls away from each other; The first connecting plate 35 is also provided with a fixing mechanism 6 that can realize the detachable connection between the concave plate 5 and the second connecting plate 36. The fixing mechanism 6 includes a pair of plug blocks 61 and a rope assembly 62. The pair of plug blocks 61 are respectively slidably connected to the inner side walls of the first groove 31 through a pair of first springs 63. The ends of the two plug blocks 61 away from the first springs 63 extend to the outside of the first groove 31 and can be respectively inserted into the two insertion holes 51. The plug blocks 61 are slidably matched with the inner side walls of the insertion holes 51. The two plug blocks 61 are provided with first inclined surfaces at the ends extending outside the first connecting plate 35. The concave plate 5 is provided with a pair of first fillets on the side wall end surface where the insertion holes 51 are opened, which can respectively contact and cooperate with the two first inclined surfaces. The rope assembly 62 is provided on the first connecting plate 35. The rope assembly 62 can make the two plug blocks 61 slide in the direction of compressing the first springs 63 and retract into the inside of the two first grooves 31 respectively.

[0030] When installing the optical fiber box 4, the concave plate 5 on the optical fiber box 4 is covered on the outside of the first connecting plate 35 and the second connecting plate 36. When the concave plate 5 slides along the outer wall of the second connecting plate 36 to the outer wall of the first connecting plate 35, the concave plate 5 will contact the plug block 61 extending out of the first connecting plate 35. Under the cooperation of the first fillet and the first inclined surface, the concave plate 5 will squeeze the plug block 61 into the first groove 31 and compress the first spring 63. When the concave plate 5 slides to the end of the stroke, the first groove 31 will be aligned with the socket 51 on the plug plate 3. The plug block 61 slides back and is clamped into the socket 51 under the elastic force of the first spring 63, thereby realizing the automatic fixation of the concave plate 5 after being covered on the first connecting plate 35 and the second connecting plate 36, and conveniently realizing the installation and fixation of the optical fiber box 4 on the plug 1.

[0031] like Figure 3 and Figure 4 As shown, the two first grooves 31 are horizontally provided with first connecting holes 33 connected to the cavity 32 on the inner side walls connected to the first spring 63, and a pair of second connecting holes 34 connecting the cavity 32 and the top surface of the first connecting plate 35 are vertically provided on the inner side walls at the top of the cavity 32. The pull rope assembly 62 includes a pair of guide wheels 621, a winding roller 622 and a pair of pull ropes 623. The pair of guide wheels 621 are rotatably connected to the inner side walls of the cavity 32, and the winding roller 622 is rotatably connected to the support frame 624. On the top surface of the first connecting plate 35, one end of a pair of pull ropes 623 are respectively fixed on the side walls of the two plug blocks 61 connected to the first spring 63, and the other ends of the two pull ropes 623 respectively pass through the two first connecting holes 33 to extend into the cavity 32, respectively bypass the outside of the two guide wheels 621, and then pass through the two second connecting holes 34 to be fixed on the outer wall of the winding roller 622. A hand wheel 625 coaxially fixed to the winding roller 622 is provided on the outside of one end of the support frame 624, and the hand wheel 625 rotates in coordination with the support frame 624.

[0032] When disassembling the concave plate 5, the staff can rotate the hand wheel 625 to drive the winding roller 622 to rotate and reel in the pull rope 623. During the reeling process, the pull rope 623 pulls the plug block 61 to slide out of the insertion hole 51 and retract into the first groove 31, causing the plug block 61 to lose the limiting and fixing effect on the concave plate 5, so that the staff can remove the concave plate 5 together with the optical fiber box 4. The disassembly method is simple, convenient and easy to operate.

[0033] like Figure 4 and Figure 5 As shown, the outer circumferences of the two guide wheels 621 are each provided with an annular concave surface 626 for the pull rope 623 to pass around.

[0034] The pull rope 623 is limited by setting an annular concave surface 626 on the outer circumference of the guide wheel 621, thereby reducing the possibility of the pull rope 623 bypassing the guide wheel 621 deviating from the outer circumference of the guide wheel 621. like Figure 1 , Figure 6 and Figure 7 As shown, the optical fiber box 4 includes a box body 41 fixedly connected to the side wall of the concave plate 5 away from the reduction tube 2 and a cover plate 42 installed on the box body 41. The box body 41 is provided with notches 411 on both side walls away from each other. Positions corresponding to the two notches 411 on the side walls of the cover plate 42 are fixed with blocks 43 that can be inserted into the notches 411. The blocks 43 are slidably matched with the inner side walls of the notches 411. Through holes 431 are provided on the two blocks 43. Second grooves 412 corresponding to the two through holes 431 are respectively provided on the inner side walls of the two notches 411. Latch members 44 are provided in the two second grooves 412. The latch members 44 can realize the fixation of the block 43 on the box body 41.

[0035] When assembling the optical fiber box 4, the cover plate 42 is placed on the box body 41, and the card block 43 is inserted into the notch 411 on the side wall of the box body 41 to limit the cover plate 42. The card block 43 is fixed to the box body 41 by the latch member 44 provided in the second groove 412, so that the overall assembly of the optical fiber box 4 can be conveniently achieved.

[0036] like Figure 6 and Figure 7 As shown, the latch member 44 includes a limit block 441 and a second spring 442, the limit block 441 is slidably connected to the inner wall of the second groove 412, one end of the second spring 442 is fixedly connected to the inner wall of the second groove 412, and the other end is fixedly connected to the side wall of the limit block 441, the end of the limit block 441 away from the second spring 442 extends to the outside of the second groove 412 and can be inserted into the through hole 431, the limit block 441 is slidably matched with the inner wall of the through hole 431, and the limit block 441 is provided with a second inclined surface at the end extending outside the second groove 412, and the end face side wall of the clamping block 43 that is slidably matched with the inner wall of the notch 411 is provided with a second fillet that can contact and cooperate with the second inclined surface.

[0037] When the block 43 is aligned with the notch 411 and the cover 42 is covered on the box body 41, when the block 43 slides along the inner wall of the notch 411, under the cooperation of the second fillet and the second inclined surface, the block 43 will squeeze the limit block 441 to slide toward the inside of the second groove 412 and compress the second spring 442. When the block 43 slides to the end of the stroke, the second groove 412 is aligned with the through hole 431, and the limit block 441 slides back and is fixed into the through hole 431 to fix the block 43, so as to realize automatic fixation of the block 43 after the cover 42 is covered on the box body 41.

[0038] like Figure 7 and Figure 8As shown, the block 43 is horizontally fixed with a guide rod 45 on the side wall of the end face away from the inner side wall of the notch 411. The longitudinal cross-section of the guide rod 45 is rectangular. A slide plate 46 is sleeved on the outside of the guide rod 45 and is slidably matched with the guide rod 45. A top block 47 that can be inserted into the through hole 431 is fixed at a position on the side wall of the slide plate 46 corresponding to the through hole 431. The top block 47 is slidably matched with the inner side wall of the through hole 431. The top block 47 can fill the through hole 431 to cause the limit block 441 to retract into the second groove 412.

[0039] When the cover 42 needs to be removed, the slide plate 46 is pushed to slide so that the top block 47 slides into the through hole 431 to squeeze the limit block 441. When the slide plate 46 moves to contact the side wall of the block 43, the top block 47 just fills the through hole 431. At this time, the limit block 441 loses its fixing effect on the block 43, so that the staff can remove the cover 42.

[0040] Working principle: first assemble the reduction tube 2, the plug 1 and the reduction tube 2, and then install the plug 1 with the reduction tube 2 in the socket box. When installing the optical fiber box 4, align the concave plate 5 on the outer wall of the optical fiber box 4 with the plug board 3 and cover the plug board 3. When the concave plate 5 slides along the outer wall of the plug board 3 for covering, the concave plate 5 will contact the plug block 61 extending out of the plug board 3. Under the cooperation of the first fillet and the first inclined surface, the concave plate 5 will squeeze the plug block 61 into the first groove 31 and compress the first spring 63. When the concave plate 5 slides to the end of the stroke, the first groove 31 will be aligned with the plug hole 51 on the plug board 3. The plug block 61 retracted into the first groove 31 will slide back and be stuck into the plug hole 51 under the elastic force of the first spring 63, so that the concave plate 5 is automatically fixed after being covered on the plug board 3, thereby conveniently realizing the installation of the optical fiber box 4 on the plug 1; When it is necessary to remove the fiber optic box 4 from the plug 1, the staff can drive the winding roller 622 to rotate by turning the hand wheel 625. The winding roller 622 reels the pull rope 623 during the rotation. The pull rope 623 pulls the plug block 61 to slide out of the socket 51 and retract into the first groove 31 during the reeling process, so that the plug block 61 loses the limiting and fixing effect on the concave plate 5, so that the staff can remove the concave plate 5 together with the fiber optic box 4 from the plug 1. The disassembly method is simple and convenient, and easy to operate. The guide wheel 621 arranged in the cavity is used to guide the traction direction of the pull rope 623, so that the pull rope 623 can apply force to the plug block 61 to drive the plug block 61 to retract into the first groove 31 during the reeling process.

[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A fiber optic network connection device for a yard socket box, characterized in that: The invention comprises a plug (1) arranged in a socket box; a reduction tube (2) is coaxially threadedly connected to the inner wall of one end of the plug (1); a plug plate (3) is arranged on the outer wall of the plug plate (2); an optical fiber box (4) is installed on the outer wall of the plug plate (3); a concave plate (5) is fixedly connected to the side wall of the optical fiber box (4) close to the plug plate (3); the concave plate (5) can be covered on the outer wall of the plug plate (3), and the inner wall of the concave plate (5) and the outer wall of the plug plate (3) are slidably matched; a fixing mechanism (6) is arranged in the plug plate (3); the fixing mechanism (6) can realize the detachable connection between the concave plate (5) and the plug plate (3).

2. The fiber optic network connection device for a yard socket box according to claim 1, characterized in that: The plug plate (3) is provided with a first groove (31) on the outer wall thereof; the concave plate (5) is provided with a socket (51) whose position matches that of the first groove (31); the fixing mechanism (6) comprises an insert block (61) and a pull rope assembly (62); the insert block (61) is slidably connected to the inner wall of the first groove (31) via a first spring (63); the end of the insert block (61) away from the first spring (63) extends to the outside of the plug plate (3) and can slide with the inner wall of the socket (51); the end of the insert block (61) extending to the outside of the plug plate (3) is provided with a first inclined surface; the inner wall of the concave plate (5) is provided with a first fillet which can contact and cooperate with the first inclined surface; the pull rope assembly (62) is provided on the plug plate (3), and the pull rope assembly (62) can make the insert block (61) slide in the direction of compressing the first spring (63) and retract into the inside of the first groove (31).

3. The fiber optic network connection device for a yard socket box according to claim 2, characterized in that: The plug board (3) is provided with a cavity (32) located on the side of the first groove (31) away from the plug hole (51); the cavity (32) is provided with a first connecting hole (33) on the inner side wall close to the first groove (31); the first connecting hole (33) connects the first groove (31) and the cavity (32); a second connecting hole (34) is provided on the inner side wall at the top end of the cavity (32); the second connecting hole (34) connects the cavity (32) and the top surface of the plug board (3); the pull rope assembly (62) includes a guide wheel (621) , a winding roller (622) and a pull rope (623); the guide wheel (621) is rotatably connected to the inner wall of the cavity (32), and the winding roller (622) is rotatably connected to the top surface of the plug plate (3) through a support frame (624); one end of the pull rope (623) is fixedly connected to the side wall of the plug block (61) connected to the first spring (63), and the other end of the pull rope (623) passes through the first connecting hole (33) and extends into the cavity (32), bypasses the guide wheel (621) and passes through the second connecting hole (34) and is fixedly connected to the outer wall of the winding roller (622).

4. The fiber optic network connection device for a yard socket box according to claim 3, characterized in that: The plug plate (3) includes a first connecting plate (35) and a second connecting plate (36); the first connecting plate (35) is fixedly connected to the outer wall of the shortened tube (2); the second connecting plate (36) is detachably mounted on the outer wall of the first connecting plate (35) away from the shortened tube (2) by bolts; the second connecting plate (36) cooperates with the first connecting plate (35) to form a first groove (31) and a cavity (32) located on the second connecting plate (36); the support frame (624) is installed on the top surface of the first connecting plate (35); the concave plate (5) can be covered on the outside of the first connecting plate (35) and the second connecting plate (36), and the concave plate (5) is slidably matched with the outer walls of the first connecting plate (35) and the second connecting plate (36).

5. The fiber optic network connection device for a yard socket box according to claim 3, characterized in that: One end of the winding roller (622) is coaxially fixedly connected to a hand wheel (625) located outside the support frame (624); the hand wheel (625) is rotatably matched with the support frame (624).

6. The fiber optic network connection device for a yard socket box according to claim 3, characterized in that: An annular concave surface (626) is provided on the outer peripheral surface of the guide wheel (621); the pull rope (623) passes around the annular concave surface (626).

7. The fiber optic network connection device for a yard socket box according to claim 4, characterized in that: The optical fiber box (4) comprises a box body (41) and a cover plate (42); the box body (41) is fixedly connected to the side wall of the concave plate (5) away from the second connecting plate (36), and notches (411) are arranged on the two side walls of the box body (41) away from each other; the cover plate (42) is covered on the side wall of the box body (41) away from the concave plate (5), and blocks (43) are arranged on the side wall of the cover plate (42) at positions corresponding to the two notches (411); The clamping block (43) can be inserted into the notch (411), the clamping block (43) and the inner wall of the notch (411) are slidably matched, and a through hole (431) is provided on the clamping block (43); a second groove (412) is provided on the inner wall of the notch (411) at a position corresponding to the through hole (431); a latch member (44) is provided in the second groove (412) and can be inserted into the through hole (431) to fix the cover plate (42) and the box body (41).

8. The fiber optic network connection device for a yard socket box according to claim 7, characterized in that: The latch member (44) comprises a limit block (441); the limit block (441) is slidably connected to the inner wall of the second groove (412) via a second spring (442); the end of the limit block (441) away from the second spring (442) extends to the outside of the second groove (412) and can slide with the inner wall of the through hole (431); the end of the limit block (441) extending outside the second groove (412) is provided with a second inclined surface; the end face side wall of the clamping block (43) away from the cover plate (42) is provided with a second fillet that can contact and cooperate with the second inclined surface.

9. The fiber optic network connection device for a yard socket box according to claim 8, characterized in that: The block (43) is fixedly connected with a guide rod (45) on the outer wall at the location of the through hole (431); the outer wall of the guide rod (45) is sleeved with a slide plate (46) slidably matched with the guide rod (45); a top block (47) slidably inserted into the through hole (431) is fixedly connected to the side wall of the slide plate (46) at a position corresponding to the through hole (431); the top block (47) can fill the through hole (431) to cause the limit block (441) to retract into the second groove (412).

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