A junction box for 5G optical cable wiring

Abstract

A junction box for 5G optical cable splicing includes a rain-proof mechanism, a pigtail winding post adjustment mechanism, and a fusion splice tray storage and retrieval mechanism. It integrates rain-proofing, pigtail winding post adjustment, and fusion splice tray storage and retrieval functions into one unit. When outdoor rainfall is light, rain will not enter the optical cable junction box. When rainfall is heavy, the rainwater collection box accumulates more water, increasing its weight. The rainwater collection box causes a sliding plate to move downwards within a groove, blocking the heat dissipation holes and preventing excessive rainwater from splashing into the box. When the sensor detects clear weather, the rainwater collection box returns to its initial state. The pigtail winding post adjustment mechanism can adjust the spacing of the winding posts according to the required number of pigtails and the actual winding situation. The fusion splice tray can be inserted into the fusion splice tray frame and can be removed together through the fusion splice tray storage and retrieval mechanism when needed.

Description

Technical Field

[0001] This invention relates to the field of 5G optical cable technology, and in particular to a junction box for 5G optical cable splicing. Background Technology

[0002] With the continuous development of 5G technology, the application of fiber optic junction boxes is becoming increasingly widespread. A fiber optic junction box is a connection device that provides termination and patching for backbone layer and distribution layer fiber optic cables. 5G base stations are core equipment of 5G networks, providing wireless coverage and enabling wireless signal transmission between wired communication networks and wireless terminals. Fiber optic junction boxes are typically installed in 5G base stations. Since 5G base stations are usually located outdoors, the fiber optic junction boxes within them also need to be installed outdoors, thus requiring them to be able to withstand outdoor environments. For example, Chinese invention patent CN202221497589.7 discloses a smart optical cable junction box based on a 5G platform, including a box body, a support rod (a), a support rod (b), a junction component, a limiting block, and a cable bundler. Two support rods (a) are symmetrically arranged, with the two a support rods and the b support rod arranged side-by-side inside the box body, and the b support rod located between the two a support rods. Limiting grooves are provided on both the a and b support rods. Multiple junction components and limiting blocks are provided. The junction component is mounted on the box body. Each junction component has two limiting blocks, which are slidably connected to the junction component. One end of the limiting block is embedded in the limiting groove, and the limiting block engages with the a and b support rods. A pushing mechanism for driving the limiting blocks to move is provided on the junction component. Multiple cable bundlers are provided, each mounted on the a and b support rods. Through research on the above-mentioned smart optical cable junction box based on the 5G platform, it was found that the patent can freely adjust the position of the junction components and can bind the wire harness, but it cannot cope well with the outdoor environment. Therefore, we urgently need to invent a junction box for 5G optical cable connections. In addition to realizing the basic functions of an optical cable junction box, it is also equipped with a rain protection mechanism to prevent rainwater from entering and damaging the equipment. Summary of the Invention

[0003] To address the aforementioned issues, this invention provides a junction box for 5G optical cable splicing. By incorporating a rain-sheltered mechanism, a pigtail winding post adjustment mechanism, and a fusion splice tray storage mechanism, it integrates rain-sheltered functions, pigtail winding post adjustment, and fusion splice tray storage into one unit. When outdoor rainfall is light, rain will not enter the optical cable junction box. When rainfall is heavy, the rainwater collection box accumulates more water, increasing its weight. The rainwater collection box then moves a sliding plate down a groove to block the heat dissipation holes, preventing excessive rainwater from splashing into the box. When the sensor detects clear skies, the rainwater collection box returns to its initial state. The pigtail winding post adjustment mechanism adjusts the spacing of the winding posts according to the required number of pigtails and the actual winding situation. The fusion splice tray can be inserted into the fusion splice tray frame and can be removed together via the fusion splice tray storage mechanism when needed.

[0004] The technical solution used in this invention is: a junction box for 5G optical cable splicing includes: a rain-proof mechanism, a pigtail winding column adjustment mechanism, and a fiber optic tray storage and retrieval mechanism; The rain-sheltered mechanism is installed on the upper side of the junction box. Opening the front door reveals that the fiber optic cable winding adjustment mechanism is fixedly installed inside the rear of the box, with the rain-sheltered mechanism positioned to its left. Similarly, the fiber optic cable retrieving mechanism is fixed inside the rear of the box, positioned to its right. The cable inlet / outlet is located at the bottom of the box, and the branching post is positioned below the fiber optic cable winding adjustment mechanism and the fiber optic cable retrieving mechanism. When outdoor rainfall is light, rain will not enter the fiber optic cable junction box. When rainfall is heavy, the rainwater collection box accumulates, increasing its weight. The rainwater collection box causes a sliding plate to move downwards within a groove, blocking the ventilation holes and preventing excessive rainwater from splashing into the box. When the sensor detects clear skies, the rainwater collection box returns to its initial state.

[0005] Furthermore, the rain-sheltered mechanism includes: a sliding plate, heat dissipation holes, a rainwater collection tank, a tension spring, a linkage assembly, a support spring, a deflector plate, a rack assembly, a moving frame, an electric cylinder, a push rod, and a windmill; The sliding plate is slidably mounted on two sliding rods on the side of the box. A sensor is provided at the upper end of the sliding plate. The heat dissipation hole is opened on the side of the box and is an oblique through hole pointing outward and downward. The rainwater collection box is rotatably mounted on the sliding plate, and the upper end of the rainwater collection box is connected to the sliding plate through a tension spring. One end of the connecting rod assembly is rotatably connected to the sliding plate, and the other end is rotatably connected to the diversion plate located on the lower side of the rainwater collection box. The diversion plate is rotatably connected to the box. One end of the support spring is fixed to the box, and the other end is fixedly connected to the diversion plate. The rack assembly is fixedly mounted inside the box and close to the heat dissipation hole. The lower part of the moving frame slides in contact with the rack assembly, and the upper part of the moving frame is fixedly connected to the cylinder extension end of the electric cylinder. The electric cylinder is fixedly mounted on the extension bracket inside the box. One end of the push rod is rotatably mounted on the moving frame, and the other end slides in contact with one hole of the heat dissipation hole. The two ends of the rotor shaft of the wind turbine are provided with gear sets, which mesh with the rack assembly.

[0006] Furthermore, the support springs are made of 65Mn spring steel and there are two sets, symmetrically installed at both ends of the connecting rod assembly.

[0007] Furthermore, the fiber winding column adjustment mechanism includes: an adjustment handle, a rotating drum, a winding column, a rotating wheel, a spring block, a lead screw, and a linkage rod; The adjusting handle can be inserted into the hole of the rotating wheel and fixed. The rotating cylinder is installed at the handle of the adjusting handle. There are two sets of winding columns, two in each set. Each set is rotatably connected to a linkage rod. The two winding columns in the middle are rotatably connected to the lead screw. The upper and lower winding columns are fixed to the slider with springs. The bevel gear fixed at one end of the rotating wheel meshes with the bevel gear on the lead screw. One end of the spring clip is fixed to the spring, and the other end can be inserted into the groove on the rotating wheel. There are two sets of linkage rods.

[0008] Furthermore, the fiber fusion tray storage and retrieval mechanism includes: a fiber fusion tray frame, a screw, a moving rod, a push plate, an inlet / outlet port, a branching post, a tightening clamp, a fixing clamp, and a centrifugal tray; The fiber fusion tray is placed on a support plate inside the housing. There are four screws located at the four corners of the fiber fusion tray. There are two moving rods, each rotatably connected to two screws located above and below it. There are several push plates that can slide within the grooves of the fiber fusion tray. Each push plate is fixedly connected to two moving rods at both ends. There are several inlet and outlet ports located at the bottom of the housing. The branching post is located below the support plate inside the housing and above the inlet and outlet ports. The fixing clamp is slidably connected to the tightening clamp. The centrifugal cylinder on the centrifugal disc is slidably installed in the vertical groove of the tightening clamp.

[0009] Furthermore, the tightening clamp and the fixing clamp are used together. The optical cable is placed between the fixing clamp and the tightening clamp, and the drive motor drives the centrifugal disc to rotate. The centrifugal disc drives the tightening clamp to move and tighten the optical cable.

[0010] Furthermore, there are several sets of tightening and fixing clamps, and several sets of centrifugal discs, which are evenly distributed to prevent the optical cable from bending or knotting due to gravity from bottom to top.

[0011] Because the present invention adopts the above-described technical solution, the present invention has the following advantages: 1) The rain-proof mechanism of this device can open or close the heat dissipation holes according to the real-time weather conditions. When the rain is heavy, the rainwater collection box will contain more rainwater. The increased weight of the rainwater collection box will cause the sliding plate to move down in the chute and block the heat dissipation holes, preventing rainwater from splashing into the box due to excessive rain. When the sensor detects that the weather is sunny, the heat dissipation holes will open, and the internal fan wheel will dissipate the heat. It can both protect against rain and dissipate heat, and can adapt well to the harsh outdoor environment. 2) The fiber fusion tray storage and retrieval mechanism of this equipment can automatically remove the fiber fusion trays without the need for manual removal one by one, saving costs. After the splitter combs the optical cable, it clamps the optical cable with tightening and fixing clamps. Then, under the action of the centrifugal disc, it automatically tightens the optical cable, protecting the optical cable and preventing it from being bent or knotted due to gravity. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2-3 This is a schematic diagram of the rain-sheltered mechanism of the present invention; Figure 4-5 This is a schematic diagram of the tail fiber winding column adjustment mechanism of the present invention; Figure 6-7 This is a schematic diagram of the fiber melting tray storage and retrieval mechanism of the present invention; Reference numerals: 1-Rain shelter mechanism; 2-Fiber filament winding column adjustment mechanism; 3-Fiber filament tray storage and retrieval mechanism; 101-Slide plate; 102-Heat dissipation hole; 103-Rainwater collection box; 104-Tension spring; 105-Linkage assembly; 106-Support spring; 107-Drainage plate; 108-Rack assembly; 109-Moving frame; 110-Electric cylinder; 111-Push rod; 112-Wind wheel; 201-Adjusting handle; 202-Rotating drum; 203-Fiber winding column; 204-Rotating wheel; 205-Spring catch; 206-Lead screw; 207-Linkage rod; 301-Fiber filament tray frame; 302-Screw; 303-Moving rod; 304-Push plate; 305-Inlet / outlet port; 306-Divider column; 307-Tightening clamp; 308-Fixing clamp; 309-Centrifugal tray. Detailed Implementation

[0013] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention; however, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0014] In the description of this invention, it should be noted that the terms "upper," "lower," "front," "rear," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed when in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0015] Examples, such as Figure 1-7 As shown, a junction box for 5G optical cable splicing is characterized by comprising: a rain-proof mechanism 1, a pigtail winding column adjustment mechanism 2, and a fiber optic tray storage and retrieval mechanism 3. The rain-proof mechanism 1 is installed on the upper side of the junction box. When the front door of the box is opened, the fiber optic winding column adjustment mechanism 2 is fixedly installed inside the rear side of the box, and the rain-proof mechanism 1 is located to the left of the fiber optic winding column adjustment mechanism 2. The fiber optic retrieval mechanism 3 is also fixed inside the rear side of the box and located to the right of the fiber optic winding column adjustment mechanism 2. The inlet and outlet ports 305 are opened at the bottom of the box, and the branching post 306 is placed below the fiber optic winding column adjustment mechanism 2 and the fiber optic retrieval mechanism 3. When the outdoor rainfall is light, rain will not enter the optical cable junction box. When the rainfall is heavy, the amount of rainwater in the rainwater collection box 103 increases, and the weight of the rainwater collection box 103 increases. The rainwater collection box 103 drives the sliding plate 101 to move down in the sliding groove to block the heat dissipation hole 102, preventing rainwater from splashing into the box due to excessive rainfall. When the sensor detects that the weather is clear, the rainwater collection box 103 will return to its initial state. The pigtail winding column adjustment mechanism 2 can adjust the spacing of the winding columns 203 according to the required number of pigtails and the actual winding situation. The fiber fusion tray can be inserted into the fiber fusion tray frame 301. When it needs to be removed, it can be taken out together through the fiber fusion tray storage and retrieval mechanism 3.

[0016] In one optional embodiment of the present invention, such as Figure 2-3 As shown, the rain shelter mechanism 1 includes: a sliding plate 101, a heat dissipation hole 102, a rainwater collection box 103, a tension spring 104, a connecting rod assembly 105, a support spring 106, a deflector plate 107, a rack assembly 108, a moving frame 109, an electric cylinder 110, a push rod 111, and a windmill 112. The slide plate 101 is slidably mounted on two slide rods on the side of the box. A sensor is located at the top of the slide plate 101. A heat dissipation hole 102 is located on the side of the box and is an oblique through hole pointing outwards and downwards. The rainwater collection box 103 is rotatably mounted on the slide plate 101, and the upper end of the rainwater collection box 103 is connected to the slide plate 101 via a tension spring 104. One end of the connecting rod assembly 105 is rotatably connected to the slide plate 101, and the other end is rotatably connected to the drainage plate 107 located on the lower side of the rainwater collection box 103. The drainage plate 107 is rotatably connected to the box. One end of the support spring 106 is fixed. One end is fixed on the housing, and the other end is fixedly connected to the diversion plate 107. The rack assembly 108 is fixedly installed inside the housing and close to the heat dissipation hole 102. The lower part of the moving frame 109 slides in contact with the rack assembly 108. The upper part of the moving frame 109 is fixedly connected to the cylinder extension end of the electric cylinder 110. The electric cylinder 110 is fixedly installed on the extension bracket inside the housing. One end of the push rod 111 is rotatably installed on the moving frame 109, and the other end slides in contact with one hole of the heat dissipation hole 102. The two ends of the shaft of the impeller 112 are provided with gear sets, which mesh with the rack assembly 108. A sensor is located at the top of the slide plate 101. The heat dissipation vent 102 is an angled hole pointing outwards and downwards. A rainwater collection tank 103 is rotatably mounted on the slide plate 101. The top of the rainwater collection tank 103 is connected to the slide plate 101 via a tension spring 104. When the outdoor rainfall is light, rain will not enter the fiber optic junction box. When the rainfall is heavy, the amount of rainwater in the rainwater collection tank 103 increases, increasing its weight. The rainwater collection tank 103 then moves the slide plate 101 downwards within the chute to dissipate the rainwater. The heat vent 102 is blocked to prevent rainwater from splashing into the tank due to excessive rainfall. Simultaneously, the sliding plate 101 moves downwards, causing the connecting rod assembly 105 to move, stretching the support spring 106 and tilting the drainage plate 107 downwards. A slanted hole with the same inclination as the heat vent 102 is located on the upper part of the rainwater collection tank 103, behind the rainwater collection tank 103. When the sliding plate 101 moves to completely block the heat vent 102, the slanted hole on the sliding plate 101 and the other hole in the heat vent 102... A concentric hole is formed in the center. The rack assembly 108 is fixedly installed inside the box, and the movable frame 109 is slidably installed on the rack assembly 108. When the sensor detects clear weather, the electric cylinder 110 pushes the movable frame 109, which in turn pushes the push rod 111. The push rod 111 pushes the rainwater collection box 103 to an inclined position through the heat dissipation hole 102 and the inclined hole on the slide plate 101, thus pouring the rainwater onto the diversion plate 107. The rainwater flows down the diversion plate 107, preventing rainwater from splashing onto the optical cable junction box. The rainwater collection box 103... The tension spring 104 is in a stretched state. At the same time, since the push rod 111 is tilted downwards and pressed on the rainwater collection tank 103, the slide plate 101 does not return to its original position under the action of the support spring 106 during the process of pouring water from the rainwater collection tank 103. Then, the electric cylinder retracts, and the tension spring 104 returns the rainwater collection tank 103 to its original position from the tilted state. At the same time, after the push rod 111 retracts, the rainwater collection tank 103 and the slide plate 101 return to their original positions under the action of the support spring 106. During the extension and retraction of the electric cylinder 110, air enters the box through the oblique hole and heat dissipation hole 102 of the slide plate 101. The movement of the moving frame 109 drives the fan wheel 112 on the moving frame 109 to move. The two ends of the rotating shaft of the fan wheel 112 are equipped with gear sets, which mesh with the rack set 108. The movement of the fan wheel 112 drives the gears to move. The relative movement of the gears and the rack causes the gears to drive the fan wheel 112 to rotate. The rotation of the fan wheel 112 mixes the outdoor air with the inward air, accelerating heat dissipation.

[0017] In one optional embodiment of the present invention, such as Figure 4-5 As shown, the fiber winding column adjustment mechanism 2 includes: an adjustment handle 201, a rotating drum 202, a fiber winding column 203, a rotating wheel 204, a spring block 205, a lead screw 206, and a linkage rod 207; The adjusting handle 201 can be inserted into the hole of the rotating wheel 204 and fixed. The rotating cylinder 202 is installed at the handle of the adjusting handle 201. There are two sets of winding columns 203, one upper and one lower, with two in each set. Each set is rotatably connected to a linkage rod 207. The two winding columns 203 in the middle part are rotatably connected to the lead screw 206. The two winding columns 203 at the top and bottom are fixed to the slider with springs. The bevel gear fixed at one end of the rotating wheel 204 meshes with the bevel gear on the lead screw 206. One end of the spring clip 205 is fixed to the spring, and the other end can be inserted into the groove on the rotating wheel 204. There are two sets of linkage rods 207. The adjusting handle 201 can be removed and placed in an empty space in the box when not in use. A rotating drum 202 is installed on the adjusting handle 201 for easy gripping, preventing friction between the handle and the hand during rotation. When it is necessary to adjust the spacing of the winding posts 203 according to the quantity of pigtails and the actual winding situation, insert the adjusting handle 201 into the hole of the rotating wheel 204, manually pull the spring catch 205 to the left to disengage it from the groove of the rotating wheel 204, and then rotate the adjusting handle 201 to... The rotating wheel 204 has a bevel gear fixed at one end that meshes with the bevel gear on the lead screw 206. The rotating wheel 204 drives the cylindrical gear set to rotate, thereby causing the lead screw 206 to rotate. The threads at both ends of the lead screw 206 are in opposite directions. The rotation of the lead screw 206 causes the winding posts 203 mounted at both ends of the lead screw 206 to move towards the middle at the same time. The winding post 203 in the middle drives the upper and lower linkage rods 207 to move from left to right through the linkage rod 207, thereby completing the adjustment of the spacing of the winding posts 203.

[0018] In one optional embodiment of the present invention, such as Figure 6-7 As shown, the fiber melting tray storage and retrieval mechanism 3 includes: a fiber melting tray frame 301, a screw 302, a moving rod 303, a push plate 304, a cable inlet / outlet 305, a cable splitter 306, a tightening clamp 307, a fixing clamp 308, and a centrifugal tray 309. The fiber fusion tray 301 is placed on the support plate inside the box. There are four screws 302, which are located at the four corners of the fiber fusion tray 301. There are two moving rods 303, each of which is rotatably connected to the two screws 302 at its upper and lower positions. There are several push plates 304, which can slide in the groove of the fiber fusion tray 301. Each push plate 304 is fixedly connected to two moving rods 303 at both ends. There are several inlet and outlet ports 305, which are opened at the bottom of the box. The branching post 306 is set below the support plate inside the box and above the inlet and outlet ports 305. The fixing clamp 308 is slidably connected to the tightening clamp 307. The centrifugal cylinder on the centrifugal disc 309 is slidably installed in the vertical rod groove of the tightening clamp 307. The fiber fusion tray can be inserted into the fiber fusion tray frame 301. When it needs to be removed, it can be taken out together through the fiber fusion tray storage and retrieval mechanism 3, without the need for manual removal one by one. The upper motor drives the screw 302 to rotate, and the screw 302 drives the moving rod 303 to move. The upper and lower ends of the moving rod 303 are engaged with the threads on the screw 302. The moving rod 303 is fixedly connected to the two ends of the push plate 304. The moving rod 303 drives the push plate 304 to move, thereby pushing out the fiber fusion tray. The optical cable enters from the inlet / outlet 305, is combed by the splitter post 306, and is placed between the fixing clamp 308 and the tightening clamp 307. Then, the lower motor drives the centrifugal disc 309 to rotate. The centrifugal cylinder on the centrifugal disc 309 is slidably installed in the vertical rod groove of the tightening clamp 307. The centrifugal disc 309 drives the tightening clamp 307 to move to the right, tightening the optical cable.

Claims

1. A junction box for 5G optical cable splicing, characterized in that, include: Rain shelter mechanism (1), tail fiber winding column adjustment mechanism (2) and fiber melting tray storage and retrieval mechanism (3); The rain-proof mechanism (1) is installed on the upper side of the junction box. When the front door of the box is opened, the tail fiber winding column adjustment mechanism (2) is fixedly installed inside the rear side of the box, and the rain-proof mechanism (1) is located to the left of the tail fiber winding column adjustment mechanism (2). The fiber melting tray storage and retrieval mechanism (3) is also fixed inside the rear side of the box and located to the right of the tail fiber winding column adjustment mechanism (2). The rain shelter mechanism (1) includes: a sliding plate (101), a heat dissipation hole (102), a rainwater collection tank (103), a tension spring (104), a linkage group (105), a support spring (106), a diversion plate (107), a moving frame (109), an electric cylinder (110), and a push rod (111). The sliding plate (101) is slidably mounted on two sliding rods on the side of the box. A sensor is provided at the upper end of the sliding plate (101). The heat dissipation hole (102) is opened on the side of the box and is an oblique through hole pointing outward and downward. The rainwater collection box (103) is rotatably mounted on the sliding plate (101), and the upper end of the rainwater collection box (103) is connected to the sliding plate (101) through a tension spring (104). One end of the connecting rod assembly (105) is rotatably connected to the sliding plate (101), and the other end is rotatably connected to the diversion plate (107) located on the lower side of the rainwater collection box (103). The diversion plate (107) is rotatably connected to the box. One end of the support spring (106) is fixed to the box, and the other end is fixedly connected to the diversion plate (107). The moving frame (109) is slidably mounted inside the box. The upper part is fixedly connected to the cylinder extension end of the electric cylinder (110). The electric cylinder (110) is fixedly installed on the extension bracket inside the box. One end of the push rod (111) is rotatably installed on the movable frame (109), and the other end slides in contact with one hole of the heat dissipation hole (102). The sliding plate (101) is provided with an inclined hole with the same inclination as the heat dissipation hole (102). When the sliding plate (101) moves to completely block the heat dissipation hole (102), the inclined hole on the sliding plate (101) is concentric with one of the holes in the heat dissipation hole (102). The electric cylinder (110) pushes the movable frame (109), the movable frame (109) pushes the push rod (111), and the push rod (111) pushes the rainwater collection box (103) to tilt through the heat dissipation hole (102) and the inclined hole on the sliding plate (101) to pour the rainwater into the diversion plate (107). The tail fiber winding column adjustment mechanism (2) includes: an adjustment handle (201), a rotating drum (202), a winding column (203), a rotating wheel (204), a spring block (205), a lead screw (206), and a linkage rod (207). The fiber melting tray storage and retrieval mechanism (3) includes: a fiber melting tray frame (301), a screw (302), a moving rod (303), a push plate (304), an inlet / outlet port (305), and a branching post (306). The fiber fusion tray frame (301) is placed on the support plate inside the box. There are four screws (302), which are located at the four corners of the fiber fusion tray frame (301). There are two moving rods (303), each of which is rotatably connected to the two screws (302) at its upper and lower positions. There are several push plates (304), which can slide in the groove of the fiber fusion tray frame (301). Each push plate (304) is fixedly connected to two moving rods (303) at both ends. There are several inlet and outlet ports (305), which are opened at the bottom of the box. The splitter post (306) is located below the tail fiber winding post adjustment mechanism (2) and the fiber fusion tray storage and retrieval mechanism (3), and above the inlet and outlet ports (305).

2. The junction box for 5G optical cable splicing according to claim 1, characterized in that, The rain shelter mechanism (1) also includes: a rack assembly (108) and a wind turbine (112); The rack assembly (108) is fixedly installed inside the housing and close to the heat dissipation hole (102). The lower part of the movable frame (109) slides in contact with the rack assembly (108). The two ends of the shaft of the fan wheel (112) are provided with gear sets, which mesh with the rack assembly (108).

3. A junction box for 5G optical cable splicing according to claim 2, characterized in that, The support spring (106) is made of 65Mn spring steel and there are two sets, which are symmetrically installed at both ends of the connecting rod assembly (105).

4. The junction box for 5G optical cable splicing according to claim 1, characterized in that, The adjusting handle (201) can be inserted into the hole of the rotating wheel (204) and fixed. The rotating cylinder (202) is installed at the handle of the adjusting handle (201). There are two sets of fiber winding columns (203), two in each set. Each set is rotatably connected to a linkage rod (207). The two fiber winding columns (203) in the middle part are rotatably connected to the lead screw (206). The two fiber winding columns (203) at the top and bottom are fixed on the slider with springs. The bevel gear fixed at one end of the rotating wheel (204) meshes with the bevel gear on the lead screw (206). One end of the spring clip (205) is fixed to the spring, and the other end can be inserted into the groove on the rotating wheel (204). There are two sets of linkage rods (207).

5. A junction box for 5G optical cable splicing according to claim 1, characterized in that, The fiber melting tray storage and retrieval mechanism (3) further includes: a tightening clamp (307), a fixing clamp (308), and a centrifugal tray (309); The fixing clamp (308) is slidably connected to the tightening clamp (307), and the centrifugal cylinder on the centrifugal disc (309) is slidably installed in the vertical rod groove of the tightening clamp (307).

6. A junction box for 5G optical cable splicing according to claim 5, characterized in that, The tightening clamp (307) and the fixing clamp (308) are used together. The optical cable is placed between the fixing clamp (308) and the tightening clamp (307). The drive motor drives the centrifugal disc (309) to rotate. The centrifugal disc (309) drives the tightening clamp (307) to move, tightening the optical cable.

7. A junction box for 5G optical cable splicing according to claim 6, characterized in that, There are several sets of tightening clamps (307) and fixing clamps (308), and several sets of centrifugal discs (309) are evenly distributed to prevent the optical cable from bending or knotting due to gravity from bottom to top.

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