Optical fiber splicing box

Abstract

The present invention discloses an outdoor optical fiber splicing box, wherein a line storage structure is fixed to the bottom of the inner cavity, and a plurality of wiring structures are stacked on the upper side of the line storage structure. A multi-fiber support mechanism and a single-fiber support mechanism fixed to the bottom of the inner cavity are provided on both sides of the wiring structure. The single-fiber support mechanism and the multi-fiber support mechanism are both provided on the side of the wiring structure. The box body is provided with a first inlet and outlet and a second inlet and outlet. The first inlet and outlet is provided with a single-fiber waterproof structure. The second inlet and outlet is provided with a multi-fiber waterproof structure with good waterproof effect. At the same time, the single-fiber support mechanism and the multi-fiber support mechanism protect the optical fiber cable from vibration, impact, cable stretching, twisting, etc. The present invention has a simple structure and can be applied to a single optical fiber, multiple optical fibers, and a cut single optical fiber with a connector.

Description

Technical Field

[0001] The invention relates to the field of cable connection, in particular to an optical fiber splicing box. Background Art

[0002] Fiber optic splice boxes have a connecting part with protective components and are a must-use in the construction of optical cable line projects. They are also one of the most important equipment. The quality of the optical cable splice box directly affects the quality of the optical cable line and the service life of the optical cable line. The existing optical fiber splice box can only connect a single optical fiber, and the connected single optical fiber must be a straight-through line, and the length of the optical fiber cable must be calculated in advance, because the excess part of the optical fiber cable that is too long cannot be stored, and the optical fiber cable that is too short cannot reach the fiber splicing tray area. If the optical fiber cable is a cut cable, a connector must be added before it can enter the box body. However, the existing splice box cannot meet the demand for splicing the cut optical fiber cable. When multiple optical fibers need to be connected, the existing splice box can only meet the demand for more optical fiber access by increasing the optical fiber inlet and outlet, and the number of fiber splices in the wiring structure is limited. Therefore, the total number of optical fibers connected is limited, and the structure of the existing splice box is not stable enough, the waterproof effect is not good enough, and the wiring assembly labor cost is also high. In general, the existing splice box cannot meet the requirements of diverse applications on site. The present invention is committed to solving the above problems. Summary of the Invention

[0003] In order to overcome the deficiencies of the prior art, the present invention provides an optical fiber splicing box.

[0004] The technical solution adopted by the present invention to solve its technical problems is: an optical fiber splicing box, comprising a box body and a box cover, the box body and the box cover are buckled together, the box body is provided with an upward opening, the box body is provided with an inner cavity, a waterproof ring is provided between the box body and the box cover, the inner cavity includes a bottom, the side wall of the box body is provided with a first inlet and outlet port for a single optical fiber cable with a connector to enter the inner cavity, and a second inlet and outlet port for multiple straight-through cables to enter the inner cavity, a wire storage structure is fixed to the bottom of the inner cavity, and a plurality of stacked wiring structures are fixed to the top of the wire storage structure, a first cable positioning structure and a second cable positioning structure are provided in the box body, the first inlet and outlet are provided in plurality and are respectively arranged on both sides of the wire storage structure, the second inlet and outlet are provided in plurality and are respectively arranged on both sides of the wire storage structure, the first cable positioning structure is arranged between the first inlet and outlet and the wiring structure, the second cable positioning structure is arranged between the second inlet and outlet and the wiring structure, a first waterproof structure is provided between the first inlet and outlet and the optical fiber cable, and a second waterproof structure is provided between the second inlet and outlet and the optical fiber cable.

[0005] A further technical solution is that the wiring structure includes a splice tray, a thin cover clamped to the top splice tray, and a splice cover twisted to the splice tray, the thin cover is located on the upper side of the splice tray, the splice cover covers the upper side of the thin cover, the splice tray is fixedly connected to the top of the wire storage structure and linearly stacked in sequence, and adjacent splice trays are twisted.

[0006] A further technical solution is that the wire storage structure includes a door frame-shaped frame, a first fixed side panel 1 and a second fixed side panel 1 fixedly connected to the door frame-shaped frame, the first fixed side panel 1 and the second fixed side panel 1 are fixed on the left and right sides of the door frame-shaped frame and form a "J" shape with the door frame-shaped frame, the first fixed side panel 1 and the second fixed side panel 1 are both provided with a positioning hole 1, and a positioning hole 2 is provided on the top of the door frame-shaped frame.

[0007] A further technical solution is that the box body includes a left side wall, a right side wall, a front side wall, and a rear side wall, and the upper openings of the left side wall and the right side wall are respectively provided with a flange structure 1 extending toward the outside, and the flange structure 1 is provided with a semi-through hole 1 penetrating the left side wall or the right side wall, and the box cover is provided with a flange structure 2 extending toward the outside and corresponding to the flange structure 1, and the flange structure 2 is provided with a semi-through hole 2, and the semi-through hole 1 and the semi-through hole 2 are combined to form a first wire inlet and outlet.

[0008] A further technical solution is that the first waterproof structure includes a cylindrical tube and a side wing portion fixedly connected to the end of the cylindrical tube, a through hole three is provided in the center of the cylindrical tube, a groove one is provided on the outer surface of the cylindrical tube, and an opening two communicating with the through hole three is provided. Two side wing portions are provided and symmetrically arranged on both sides of the opening two. The side wing portion includes a main body portion, a cantilever structure one fixedly connected to the main body portion is provided on the side surface of the cantilever structure one, a triangular protrusion one protruding from the upper and lower surfaces of the cantilever structure one is provided on the side surface of the cantilever structure one, a positioning portion is provided at the end of the main body portion away from the cylindrical tube, the positioning portion is provided as a rectangular parallelepiped, and an arc-shaped protrusion is provided in the middle part of the positioning portion.

[0009] A further technical solution is that the semi-through hole 1 and the semi-through hole 2 are both provided with positioning ribs corresponding to the groove 1, the left side wall, the right side wall, the front side wall and the rear side wall are all provided with a positioning groove 1, the sides of the left side wall, the right side wall, the front side wall and the rear side wall facing the inner cavity are all provided with a chamfer 1, the waterproof ring 1 is provided with a waterproof main body 1, a cantilever structure 2 extending from the waterproof main body 1, and a triangular protrusion 2 extending from the cantilever structure 2, the waterproof ring 1 is interrupted at the first inlet and outlet, the waterproof main body 1 is provided with a positioning groove 2 at the interruption, the positioning groove 2 is provided with an arc-shaped groove 3, and the lower half of the triangular protrusion 2 is backed against the chamfer 1.

[0010] A further technical solution is provided, wherein the first cable positioning structure includes a single optical fiber support column fixed at the bottom of the inner cavity, a fixing cover 1 threadedly connected to the single optical fiber support column, and an optical fiber fixing structure 1 fixed to the wire storage structure, the top of the single optical fiber support column is provided with an arc-shaped groove 2, the fixing cover 1 is set to an intermediate arch shape, the optical fiber fixing structure 1 includes a square fixing body 1, a fixing plate 1 extending from the square fixing body 1 to the side, the square fixing body 1 and the fixing plate 1 form an L-shape, the fixing plate 1 is provided with a through hole 9, the side of the square fixing body 1 facing the single optical fiber support column is provided with a through hole 4, the top of the square fixing body 1 is provided with a threaded hole 4 communicating with the through hole 4, and a screw 1 is provided in the threaded hole 4.

[0011] A further technical solution is that the box body is provided with a convex cylinder, a second wire inlet and outlet communicating with the inner cavity is provided at the center of the convex cylinder, an external thread 1 is provided on the outer side of the convex cylinder, and the convex cylinder is arranged on both sides of the first wire inlet and outlet, and the second waterproof structure includes a claw partially defined in the second wire inlet and outlet, a waterproof ring 2 defined between the claw and the second wire inlet and outlet, a rubber column 1 defined in the claw, and a tightening ring threadedly connected to the external thread 1, and the rubber column 1 is provided with a plurality of through holes 5 for the optical fiber cable to pass through.

[0012] A further technical solution is that a boss is provided at the bottom of the inner cavity, and the boss is provided with several threaded holes five. The box body is provided with a bottom surface exposed to the outside, and the bottom surface of the box body is provided with a recessed platform one and a recessed platform two. There are two recessed platforms two and they are arranged on both sides of the recessed platform one. The depth of the boss one is greater than the depth of the recessed platform two. The bottom of the recessed platform one is provided with several protruding columns and hanging platforms. The height of the protruding columns is lower than the depth of the recessed platform one, and some of the protruding columns are provided with internal threaded holes eight.

[0013] The present invention provides a fiber optic splicing box, wherein a fiber optic cable enters the inner cavity from the fiber entrance. If it is a single fiber optic cable, it enters the inner cavity from the first inlet and outlet, is supported and fixed by the first cable positioning structure, and the excess single fiber optic cable is wound into the storage structure and then enters the distribution structure. After fiber splicing, it passes through the first cable positioning structure and extends out of the first inlet and outlet. Even if the single fiber optic cable is a cut cable and needs to be connected to a connector, the single fiber optic cable together with the connector can be smoothly placed into the first inlet and outlet. Under the pressure of the box cover, the first waterproof structure can also achieve a waterproof effect. If it is a multi-fiber optic cable, it enters the inner cavity from the second inlet and outlet, is supported and fixed by the second cable positioning structure, and the excess single fiber optic cable is wound into the storage structure and then enters the distribution structure. After fiber splicing, it passes through the second cable positioning structure and extends out of the second inlet and outlet. The fiber optic entrance and fiber outlet are both provided with a first waterproof structure and a second waterproof structure to ensure that the fiber optic entrance and fiber outlet are effectively waterproof. The box body and box cover can withstand harsh environmental changes, and the waterproof ring together achieves a waterproof effect. The box body, box cover, waterproof ring, first waterproof structure, and second waterproof structure prevent aging and corrosion of the internal structure of the box body caused by water, heat, cold, light, oxygen, and microorganisms in nature. At the same time, the first cable positioning structure and the second cable positioning structure protect the optical fiber cable from vibration, impact, cable stretching, twisting, etc.

[0014] The present invention has a simple structure and is applicable to a single optical fiber, multiple optical fibers, and a cut single optical fiber with a connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an outdoor optical fiber splicing box of the present invention.

[0016] Figure 2 The invention discloses an exploded structural diagram of an outdoor optical fiber splicing box.

[0017] Figure 3 It is a structural schematic diagram of a top view of a partial structure of an outdoor optical fiber splicing box of the present invention.

[0018] Figure 4 This invention is an outdoor optical fiber splicing box Figure 4 AA cross-sectional structural diagram.

[0019] Figure 5 It is a partial structural schematic diagram of a line storage structure of an outdoor optical fiber splicing box of the present invention.

[0020] Figure 6 It is a partial structural schematic diagram of a box body of an outdoor optical fiber splicing box of the present invention.

[0021] Figure 7It is a structural schematic diagram of a first optical fiber waterproof structure of an outdoor optical fiber splicing box of the present invention.

[0022] Figure 8 It is a partial structural diagram of a first optical fiber supporting mechanism of an outdoor optical fiber splicing box of the present invention.

[0023] Figure 9 The present invention is a schematic structural diagram of a second optical fiber waterproof structure of an outdoor optical fiber splicing box.

[0024] Figure 10 The present invention is a schematic structural diagram of a wiring structure of an outdoor optical fiber splicing box.

[0025] Figure 11 The invention discloses an exploded structural diagram of a wiring structure of an outdoor optical fiber splicing box.

[0026] Figure 12 The present invention is a schematic structural diagram of a waterproof ring of an outdoor optical fiber splicing box.

[0027] Figure 13 It is a structural schematic diagram of the box body of an outdoor optical fiber splicing box of the present invention from another direction. DETAILED DESCRIPTION

[0028] The following describes the implementation of the present invention in conjunction with the accompanying drawings and relevant embodiments. The implementation of the present invention is not limited to the following embodiments, and the present invention relates to the relevant necessary components in this technical field, which should be regarded as the common knowledge in this technical field and can be known and mastered by technical personnel in this technical field.

[0029] Reference Figures 1 to 13The present invention is implemented as follows: an optical fiber splicing box includes a box body 1 and a box cover 2, the box body 1 and the box cover 2 are buckled together, the box body 1 is provided with an inner cavity 11, the box body 1 is provided with an upward opening 100, the box body 1 includes a left side wall 17, a right side wall 18, a front side wall 19, and a rear side wall 10, the box body 1 is provided with an inner cavity 11, a waterproof ring 3 is provided between the box body 1 and the box cover 2, the side wall of the box body 1 is provided with a first inlet and outlet port 4 for a single optical fiber cable with a connector to enter the inner cavity 11, and a second inlet and outlet port 5 for multiple straight-through cables to enter the inner cavity 11, the bottom 111 of the inner cavity 11 is fixed with a wire storage structure 13, and the wire storage structure 13 A plurality of linearly stacked wiring structures 14 are fixed on the top, and a first cable positioning structure 16 and a second cable positioning structure 15 are fixed in the box body 1. Two first wire inlet and outlet ports 4 are provided and are symmetrically arranged on both sides of the wire storage structure 13, and four second wire inlet and outlet ports 5 are provided and are symmetrically arranged on both sides of the wire storage structure 13. The first cable positioning structure 16 is provided between the first wire inlet and outlet port 4 and the wiring structure 14, and the second cable positioning structure 15 is provided between the second wire inlet and outlet port 5 and the wiring structure 14. A first waterproof structure 7 is provided between the first wire inlet and outlet port 4 and the optical fiber cable, and a second waterproof structure 8 is provided between the second wire inlet and outlet port 5 and the optical fiber cable.

[0030] In this embodiment, based on actual on-site application conditions, the optical fiber cable enters the inner cavity 11 from the first inlet and outlet 4. If it is a single optical fiber cable, it is supported and fixed by the first cable positioning structure 16. The excess single optical fiber cable 001 is wound into the cable storage structure 13 and then enters the wiring structure 14. After fiber fusion splicing through the wiring structure 14, it is fixed and supported by the first cable positioning structure 16 and extends out of the other first inlet and outlet 4. The first inlet and outlet 4 is provided with a first waterproof structure 7 to ensure that the first inlet and outlet 4 is effectively waterproof.

[0031] It is worth mentioning that even if a single optical fiber is cut and needs to be connected to a connector, the single optical fiber cable 001 together with the connector can smoothly enter the first inlet and outlet 4, and under the pressure of the box cover 2, the first waterproof structure 7 can also achieve a waterproof effect.

[0032] If there are multiple optical fiber cables, they enter the inner cavity 11 through the second inlet and outlet 5 on one side of the storage structure 13 and are supported and fixed by the second cable positioning structure 15. The excess single optical fiber is wound into the storage structure 13 and then enters the wiring structure 14. After being fused and spliced in the wiring structure 14, they are supported by the second cable positioning structure 15 and extend out from the second inlet and outlet 5 on the other side of the storage structure 13. The second inlet and outlet 5 is provided with a second waterproof structure 8 to ensure that the second inlet and outlet 5 is effectively waterproof.

[0033] The first inlet and outlet 4 and the second inlet and outlet 5 are set separately, so that different optical fiber inlets can be selected according to actual conditions when using on-site applications. When the optical fiber has a connector, the first inlet and outlet 4 must be selected.

[0034] The box body 1 and lid 2 are designed to withstand harsh environmental conditions, and the waterproof ring 3 provides a waterproofing effect. The box body 1, lid 2, waterproof ring 3, first waterproof structure 7, and second waterproof structure 8 prevent aging and corrosion of the internal structure of the box body 1 caused by water, heat, cold, light, oxygen, and microorganisms. Furthermore, the first and second cable positioning structures 16 and 15 protect the optical fiber cables from vibration, impact, stretching, and twisting.

[0035] On the basis of the above embodiments, as a further preference, the wiring structure 14 includes a fiber splicing tray 141, a thin cover 142 clamped to the top fiber splicing tray 141, and a fiber splicing cover 143 twisted to the fiber splicing tray 141, the thin cover 142 is located on the upper side of the fiber splicing tray 141, the fiber splicing cover 143 covers the upper side of the thin cover 142, the fiber splicing tray 141 is fixedly connected to the top of the wire storage structure 13 and are linearly stacked in sequence, and the adjacent fiber splicing trays 141 are twisted.

[0036] The twisting between adjacent splicing trays 141 can achieve linear stacking, and the stacking function can be achieved without the assistance of other parts. The addition of splicing trays 141 increases the splicing function of the wiring structure 14. At the same time, the splicing tray 141 located above can limit the optical fiber in the splicing tray 141 below to its proper position. Since there is no splicing tray 141 on the upper side to limit the optical fiber cable, the top splicing tray 141 is clamped with a thin cover 142 to limit the optical fiber cable. The thin cover 142 is set to be transparent, which makes it easy to observe the condition of the optical fiber in the splicing tray 141. Since the thin cover 142 itself is relatively thin and its strength is insufficient, the splicing cover 143 covers the thin cover 142 to protect the splicing tray 141 and the thin cover 142.

[0037] On the basis of the above embodiments, as a further preference, the wire storage structure 13 includes a door frame 131, a first fixed side panel 132 and a second fixed side panel 133 fixedly connected to the door frame 131, the first fixed side panel 132 and the second fixed side panel 133 are fixed on the left and right sides of the door frame 131 and form a "J" shape with the door frame 131, the first fixed side panel 132 and the second fixed side panel 133 are both provided with a positioning hole 1321, and the top of the door frame 131 is provided with a positioning hole 2 1312.

[0038] The screws pass through the positioning hole 1321 to fix the first fixed side plate 132 and the second fixed side plate 133 to the bottom 111 of the inner cavity 11, thereby fixing the entire wire storage structure 13 to the bottom 111 of the inner cavity 11, and the screws pass through the positioning hole 2 1312 to fix the fiber splicing tray 141 to the door frame 131, and an open space is formed on the inner side of the door frame 131 for storing excess optical fiber cables.

[0039] Based on the above embodiment, as a further preferred embodiment, the upper opening 100 of the left side wall 17 and the right side wall 18 are respectively provided with a flange structure 175 extending outward. The flange structure 175 is provided with a semi-through hole 1751 that penetrates the left side wall 17 or the right side wall 18, and the semi-through hole 1751 is in communication with the inner cavity 11. The box cover 2 is provided with a flange structure 21 extending outward and corresponding to the flange structure 175. The flange structure 21 is provided with a semi-through hole 211. The semi-through hole 1751 and the semi-through hole 211 are combined to form the first inlet and outlet port 4.

[0040] The first cable inlet and outlet 4 is formed by combining a semi-through hole 1751 and a semi-through hole 211. Open the lid 2, insert the optical fiber cable into the semi-through hole 1751, and secure the single optical fiber cable with the first cable positioning structure 16. The lid 2 is then closed, simplifying the process. The provision of the flange structure 175 and the flange structure 21 increases the length of the first cable inlet and outlet 4, thereby enhancing its strength.

[0041] On the basis of the above embodiment, as a further preference, the first waterproof structure 7 includes a cylindrical tube 71 and a side wing portion 72 fixedly connected to the end of the cylindrical tube 71, the cylindrical tube 71 is provided with a third through hole 711 in the center, the outer surface of the cylindrical tube 71 is provided with a first groove 712, the cylindrical tube 71 is provided with a second opening 713 communicating with the third through hole 711, the side wing portion 72 is provided with two and symmetrically arranged on both sides of the second opening 713, the side wing portion 72 includes a main body 721, the side surface of the main body 721 is provided with a cantilever structure 722 extending from the end of the cylindrical tube 71, the side surface of the cantilever structure 722 is provided with a triangular protrusion 7221 protruding from the upper and lower surfaces of the cantilever structure 722, the end of the main body 721 away from the cylindrical tube 71 is provided with a positioning portion 7211, the positioning portion 7211 is set as a rectangular parallelepiped, and the middle part of the positioning portion 7211 is provided with an arc-shaped protrusion 7212.

[0042] The cylindrical barrel 71 is placed within the semi-through hole 1751. When a single optical fiber needs to be installed, the second opening 713 is opened and the single optical fiber is placed within the third through hole 711. The side wings 72 are confined within the left side wall 17 or the right side wall 18. The arc-shaped protrusions 7212 ensure that the side wings 72 are more stably confined within the left side wall 17 or the right side wall 18. The cylindrical barrel 71 and the side wings 72 are made of elastic rubber. The optical fiber is confined within the third through hole 711. When the box cover 2 is buckled, a gap-free squeeze is formed between the cylindrical barrel 71 and the first inlet and outlet 4, achieving a waterproof effect. The side wings 72 are confined within the left side wall 17 or the right side wall 18, flush with the waterproof ring 1 3, and work together with the waterproof ring 1 3 to achieve a waterproof effect.

[0043] On the basis of the above embodiment, as a further preference, the semi-through hole 1751 and the semi-through hole 211 are both provided with positioning ribs 17511 corresponding to the groove 1 712, the left side wall 17, the right side wall 18, the front side wall 19, and the rear side wall 10 are all provided with positioning groove 181, and the sides of the left side wall 17, the right side wall 18, the front side wall 19, and the rear side wall 10 facing the inner cavity 11 are all provided with chamfers 182, the waterproof ring 3 is provided with a waterproof body 31, a cantilever structure 2 32 extending from the waterproof body 31, and a triangular protrusion 2 33 extending from the cantilever structure 2 32, the waterproof ring 3 is interrupted at the first inlet and outlet 4 and the single optical fiber outlet, the waterproof body 1 31 is provided with a positioning groove 2 34 at the interruption, the positioning groove 2 34 is provided with an arc-shaped groove 341, and the lower half of the triangular protrusion 2 33 is backed against the chamfer 182.

[0044] When a single optical fiber needs to be installed, the cylindrical tube 71 is placed in the semi-through hole 1751, the positioning rib 17511 of the semi-through hole 1751 is confined in the groove 1712, the main body 721 and the waterproof main body 31 are confined in the positioning groove 181, the cantilever structure 2 32 covers the left side wall 17, the right side wall 18, the front side wall 19, and the rear side wall 10, the cantilever structure 1 722 covers the left side wall 17 and the right side wall 18, the rectangular parallelepiped is confined in the positioning groove 2 34, the arc-shaped protrusion 7212 is confined in the arc-shaped groove 341, and the lower half of the triangular protrusion 1 7221 and the triangular protrusion 2 33 are backed against the chamfer 182, so that the waterproof ring 13 and the side wing part 72 are more stably confined in the left side wall 17 or the right side wall 18. The upper parts of the triangular protrusion 1 7221 and the triangular protrusion 2 33 form a protective wall, which can better achieve the purpose of waterproofing and dustproofing.

[0045] Open the second opening 713, open the second opening 713 and place the single optical fiber in the third through hole 711, then put the box cover 2 on the box, the positioning rib 17511 on the semi-through hole 211 is limited in the first groove 712, the single optical fiber cable is limited in the third through hole 711, and the cylindrical tube 71 is limited in the first inlet and outlet 4 or the outlet. After the box cover 2 is buckled with the box body 1, the box cover 2 fits with the upper side of the arm structure 1 722 and the cantilever structure 2 32 and squeezes the cylindrical tube 71 so that there is no gap between the optical fiber and the cylindrical tube 71, and at the same time, there is no gap between the cylindrical tube 71 and the first inlet and outlet 4, which can not only fix the single optical fiber cable, but also achieve the purpose of waterproofing. At the same time, this method provides a certain elastic space for the outer diameter of the single optical fiber cable. Even if the single optical fiber cable needs to be connected to a connector for cutting the line, the single optical fiber cable 001 together with the connector can also be smoothly placed in the third through hole 711, and under the pressure of the box cover 2, the first waterproof structure 7 can also achieve a waterproof effect.

[0046] On the basis of the above embodiment, as a further preference, the first cable positioning structure 16 includes a single optical fiber support column 161 fixed to the bottom 111 of the inner cavity 11, a fixing cover 162 threadedly connected to the single optical fiber support column 161, and an optical fiber fixing structure 163 fixed to the storage structure 13, the top of the single optical fiber support column 161 is provided with an arc groove 2 1611, the fixing cover 162 is set to a middle arch shape, the optical fiber fixing structure 163 includes a square fixing body 1631, a fixing body extending from the square fixing body 1631 to the side. The fixed plate 1632 is provided with a square fixed body 1631 and the fixed plate 1632 to form an L shape, the fixed plate 1632 is provided with a through hole 9 16321, the fixed plate 1632 is fixed to the wire storage structure 13 by screws passing through the through hole 9 16321, the side of the square fixed body 1631 facing the single optical fiber support column 161 is provided with a through hole 4 16311, the top of the square fixed body 1631 is provided with a threaded hole 4 16312 communicating with the through hole 4 16311, and a screw 16313 is provided in the threaded hole 4 16312.

[0047] The fixing cover 162 is set to a middle arch shape, so that a space is formed between the arc-shaped groove 2 1611 and the fixing cover 162 for accommodating a single optical fiber cable. The screws are tightened to fix the fixing cover 162 and the single optical fiber support column 161 and squeeze the single optical fiber cable. The remaining part of the single optical fiber cable passes through the through hole 9 16321. The screws 16313 are tightened to firmly confine the single optical fiber cable in the through hole 9 16321, so that the single optical fiber cable is protected from vibration, impact, cable stretching, twisting, etc. The remaining part of the single optical fiber cable is placed on the inner side of the door frame 131 of the storage structure 13 to keep the inner cavity 11 neat.

[0048] On the basis of the above embodiment, as a further preference, the left side wall 17 and the right side wall 18 are both provided with a convex cylinder 183 protruding toward the outside, and the center of the convex cylinder 183 is provided with a second inlet and outlet port 5 communicating with the inner cavity 11, and the outer side of the convex cylinder 183 is provided with an external thread 1831, and the convex cylinder 183 is arranged on both sides of the first inlet and outlet port 4, and the second waterproof structure 8 includes a claw 81 partially defined in the second inlet and outlet port 5, a waterproof ring 82 defined between the claw 81 and the second inlet and outlet 5, a rubber column 83 defined in the claw 81, and a tightening ring 84 threadedly connected to the external thread 1831, and the rubber column 83 is provided with a plurality of through holes 831 for the optical fiber cable to pass through, and the rubber column 83 is interference fit with the claw 81.

[0049] The second waterproof ring 82 is defined between the claw 81 and the second inlet and outlet 5, so that there is no gap between the claw 81 and the second inlet and outlet 5 to achieve a waterproof effect, and at the same time the claw 81 is squeezed and fixed in the second inlet and outlet 5. When multiple optical fiber cables need to be connected, the tightening ring 84 is loosened, the optical fiber cables are inserted into the through hole five 831, and then the tightening ring 84 is tightened to tighten the claw 81, and then the claw 81 squeezes and tightens the rubber column, so that there is no gap between the optical fiber cable and the rubber column one 83 to achieve the waterproof purpose, while also ensuring the stability of the optical fiber cable.

[0050] On the basis of the above embodiments, as a further preference, the second cable positioning structure 15 includes a multi-fiber support column 151 fixed to the bottom 111 of the inner cavity 11, a fixing cover 152 threadedly connected to the multi-fiber support column 151, a rubber column 153 defined between the multi-fiber support column 151 and the fixing cover 152, and an optical fiber fixing structure 154 fixed to the bottom 111 of the inner cavity 11, the rubber column 153 is provided with a plurality of through holes 1531 for optical fiber cables to pass through, the top of the multi-fiber support column 151 is provided with an arc-shaped groove 1511, the fixing cover 152 is set to a middle arch shape, the optical fiber fixing structure 154 has the same structure as the optical fiber fixing structure 1 163, and there are two optical fiber fixing structures 154.

[0051] The second fixing cover 152 is configured as a middle arch shape, so that a space is formed between the third arc-shaped groove 1511 and the second fixing cover 152 for accommodating the second rubber column 153. The optical fiber cable passes through the eighth through-hole 1531. The screws are tightened to fix the second fixing cover 152 to the multi-fiber support column 151 and squeeze the second rubber column 153 to fix the optical fiber cable. The remaining single optical fiber cable 001 is fixed through the second optical fiber fixing structure 154. There are two second optical fiber fixing structures 154 to ensure that all optical fiber cables can be fixed by the second optical fiber fixing structure 154. This protects the optical fiber cable from vibration, impact, cable stretching, twisting, etc. The remaining multi-optical fiber cable is placed inside the door frame 131 of the storage structure 13 to keep the inner cavity 11 neat.

[0052] On the basis of the above embodiments, as a further preference, the bottom 111 of the inner cavity 11 is provided with a boss 1111, and the boss 1111 is provided with a plurality of threaded holes 5 1112. The box body 1 is provided with a bottom surface 101 exposed to the outside, and the bottom surface 101 of the box body 1 is provided with a recessed platform 1011 and a recessed platform 2 1012. There are two recessed platforms 1012 and they are arranged on both sides of the recessed platform 1 1011. The depth of the recessed platform 1011 is greater than the depth of the recessed platform 2 1012. The bottom 111 of the recessed platform 1011 is provided with a plurality of protruding columns 1015 and hanging platforms 1013. The height of the protruding columns 1015 is lower than the depth of the recessed platform 1 1011, and some of the protruding columns 1015 are provided with internal threaded holes 8 1014.

[0053] The wire storage structure 13 is arranged on the boss 1111, and the screw passes through the threaded hole five 1112 and the positioning hole one 1321 to fix the wire storage structure 13 on the boss 1111, so as to facilitate the storage of optical fiber cables into the wire storage structure 13. The recess one 1011 and the recess two 1012 are arranged, and the depth of the recess one 1011 is greater than the depth of the recess two 1012. The bottom 111 of the recess one 1011 is provided with several protruding columns 1015, which not only ensures the strength of the box body 1, but also reduces the weight of the box body 1, reduces the material of the box body 1, and reduces the cost. The hanging platform 1013 is used to hang the box body 1, and the part of the protruding column 1015 is provided with a threaded hole nine, which passes through the bottom surface 101 of the box body 1 and communicates with the cavity. According to the application site conditions, the box body 1 can be fixed to the wall by passing through the threaded hole nine. The height of the protruding column 1015 is lower than the depth of the recessed platform 1011, ensuring that the protruding column 1015 does not affect the hanging, threaded fixation and other fixing methods of the box body 1.

[0054] The above description is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An optical fiber splicing box, comprising a box body (1) and a box cover (2), wherein the box body (1) and the box cover (2) are buckled together, the box body (1) is provided with an upward opening (100), and the box body (1) is provided with an inner cavity (11), wherein the box body (1) is characterized in that A waterproof ring (3) is provided between the box body (1) and the box cover (2), the inner cavity (11) includes a bottom (111), the side wall of the box body (1) is provided with a first inlet and outlet (4) for a single optical fiber cable with a connector to enter the inner cavity (11), and a second inlet and outlet (5) for multiple straight-through cables to enter the inner cavity (11), the bottom (111) of the inner cavity (11) is fixed with a storage structure (13), the top of the storage structure (13) is fixed with multiple stacked wiring structures (14), the box body (1) is provided with a first cable positioning structure (16) and a second cable positioning structure (15), the first inlet and outlet (4) is provided in plurality and is respectively arranged on both sides of the storage structure (13), There are multiple second inlet and outlet ports (5) and they are respectively arranged on both sides of the wire storage structure (13); the first cable positioning structure (16) is arranged between the first inlet and outlet port (4) and the wiring structure (14); the second cable positioning structure (15) is arranged between the second inlet and outlet port (5) and the wiring structure (14); a first waterproof structure (7) is provided between the first inlet and outlet port (4) and the optical fiber cable; a second waterproof structure (8) is provided between the second inlet and outlet port (5) and the optical fiber cable; the box body (1) includes a left side wall (17), a right side wall (18), a front side wall (19), and a rear side wall (10); the upper openings (100) of the left side wall (17) and the right side wall (18) are respectively provided with a A flange structure (175) extending outward is provided with a semi-through hole (1751) penetrating the left side wall (17) or the right side wall (18). The box cover (2) is provided with a flange structure (21) extending outward and corresponding to the flange structure (175). The flange structure (21) is provided with a semi-through hole (211). The semi-through hole (1751) and the semi-through hole (211) are combined to form a first inlet and outlet port (4). The semi-through hole (1751) and the semi-through hole (211) are both provided with a positioning rib (17511) corresponding to the groove (712). The left side wall (17), the right side wall (18), the front side wall (19), the rear side wall (1 0) are provided with a positioning groove (181), the left side wall (17), the right side wall (18), the front side wall (19), and the rear side wall (10) are provided with a chamfer (182) on the side facing the inner cavity (11), the waterproof ring (3) is provided with a waterproof body (31), a cantilever structure (32) extending from the waterproof body (31), a triangular protrusion (33) extending from the cantilever structure (32), the waterproof ring (3) is interrupted at the first inlet and outlet (4), the waterproof body (31) is provided with a positioning groove (34) at the interruption, the positioning groove (34) is provided with an arc groove (341), and the lower half of the triangular protrusion (33) is backed against the chamfer (182).

2. A fiber optic splicing box as claimed in claim 1, characterized in that The wiring structure (14) includes a fiber splicing tray (141), a thin cover (142) connected to the uppermost fiber splicing tray (141), and a fiber splicing cover (143) hinged to the fiber splicing tray (141), wherein the thin cover (142) is located on the upper side of the fiber splicing tray (141), and the fiber splicing cover (143) covers the upper side of the thin cover (142). The fiber splicing tray (141) is fixedly connected to the top of the wire storage structure (13) and is linearly stacked in sequence, and adjacent fiber splicing trays (141) are hinged.

3. A fiber optic splicing box as claimed in claim 1, characterized in that The wire storage structure (13) includes a door frame frame (131), a first fixed side plate (132) and a second fixed side plate (133) fixedly connected to the door frame frame (131), wherein the first fixed side plate (132) and the second fixed side plate (133) are fixed to the left and right sides of the door frame frame (131) and form a "J" shape with the door frame frame (131), and the first fixed side plate (132) and the second fixed side plate (133) are both provided with a positioning hole (1321), and a positioning hole (1312) is provided at the top of the door frame frame (131).

4. A fiber optic splicing box as claimed in claim 1, characterized in that The first waterproof structure (7) includes a cylindrical tube (71), a wing portion (72) fixedly connected to the end of the cylindrical tube (71), a through hole three (711) is provided at the center of the cylindrical tube (71), a groove one (712) is provided on the outer surface of the cylindrical tube (71), and the cylindrical tube (71) is provided with an opening two (713) communicating with the through hole three (711), two wing portions (72) are provided and symmetrically arranged on both sides of the opening two (713), and the wing portion (72) includes a main body The main body (721) is provided with a cantilever structure (722) fixedly connected to the main body (721) on its side, and a triangular protrusion (7221) protruding from the upper and lower surfaces of the cantilever structure (722) is provided on the side of the cantilever structure (722). The main body (721) is provided with a positioning portion (7211) at the end away from the cylindrical tube (71), and the positioning portion (7211) is configured as a rectangular parallelepiped. The middle portion of the positioning portion (7211) is provided with an arc-shaped protrusion (7212).

5. A fiber optic splicing box as claimed in claim 1, characterized in that The first cable positioning structure (16) includes a single optical fiber support column (161) fixed to the bottom (111) of the inner cavity (11), a fixing cover (162) threadedly connected to the single optical fiber support column (161), and an optical fiber fixing structure (163) fixed to the line storage structure (13). The top of the single optical fiber support column (161) is provided with an arc-shaped groove (1611). The fixing cover (162) is set to a middle arch shape. The optical fiber fixing structure (163) includes a square fixing body (1631), a fixing body (1631) extending from the square fixing body (163) and a fixing body (1631). 1) A fixing plate 1 (1632) extending laterally, the square fixing body 1 (1631) and the fixing plate 1 (1632) forming an L shape, the fixing plate 1 (1632) being provided with a through hole 9 (16321), the square fixing body 1 (1631) being provided with a through hole 4 (16311) on the side facing the single optical fiber support column (161), the top of the square fixing body 1 (1631) being provided with a threaded hole 4 (16312) communicating with the through hole 4 (16311), and a screw 1 (16313) being provided in the threaded hole 4 (16312).

6. A fiber optic splicing box as claimed in claim 1, characterized in that The box body (1) is provided with a convex cylinder (183), the center of the convex cylinder (183) is provided with a second inlet and outlet (5) communicating with the inner cavity (11), the outer side of the convex cylinder (183) is provided with an external thread (1831), the convex cylinder (183) is arranged on both sides of the first inlet and outlet (4), the second waterproof structure (8) includes a claw (81) partially defined in the second inlet and outlet (5), a waterproof ring (82) defined between the claw (81) and the second inlet and outlet (5), a rubber column (83) defined in the claw (81), and a tightening ring (84) threadedly connected to the external thread (1831), and the rubber column (83) is provided with a plurality of through holes (831) for optical fiber cables to pass through.

7. A fiber optic splicing box as claimed in claim 1, characterized in that The bottom (111) of the inner cavity (11) is provided with a boss (1111), and the boss (1111) is provided with a plurality of threaded holes (1112). The box body (1) is provided with a bottom surface (101) exposed to the outside, and the bottom surface (101) of the box body (1) is provided with a concave platform (1011) and a concave platform (1012). There are two concave platforms (1012) and they are arranged on both sides of the concave platform (1011). The depth of the boss (1111) is greater than the depth of the concave platform (1012). The bottom (111) of the concave platform (1011) is provided with a plurality of protruding columns (1015) and hanging platforms (1013). The height of the protruding columns (1015) is lower than the depth of the concave platform (1011), and some of the protruding columns (1015) are provided with internal threaded holes (1014).

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