Multi-layer optical fiber fusion splice protector for communication box body and use method of multi-layer optical fiber fusion splice protector

Abstract

The invention discloses a multi-layer optical fiber welding disc for a communication box body and a use method, and belongs to the field of welding discs. A multi-layer optical fiber welding disc for a communication box comprises an installation bottom shell and an installation top plate which is rotatably arranged above the installation bottom shell through a hinge, and further comprises an installation mechanism which is fixed on the inner wall of the installation bottom shell and comprises two limiting partition plates which are fixed on the inner bottom wall of the installation bottom shell. A mounting area is formed between the two limiting partition plates, and clamping plates are oppositely arranged at the positions, close to the mounting area, of the inner sides of the two limiting partition plates. According to the invention, different welding plates can be flexibly replaced to install a bundle-shaped or strip-shaped welding protection sleeve, the number of installed optical fibers can be increased in a limited space, and the problem that the optical fibers are easy to be disordered is avoided, so that the protection performance of optical fiber welding can be effectively improved, the problem that the installation mode is relatively tedious is avoided, and the installation efficiency is improved. And the workload is further reduced, and the production cost is relatively low.

Description

Technical Field

[0001] The invention relates to the technical field of fusion splice trays, and in particular to a multi-layer optical fiber fusion splice tray for a communication box. Background Art

[0002] Fiber optic splice tray, a splice tray is a tool used to coil excess fiber cores when connecting optical cables. It facilitates fiber optic splicing and storage and is an indispensable product in fiber optic communication network wiring. It is usually fixed in the middle of the optical cable terminal box and is an important component of the optical cable terminal box. It is used to connect each optical fiber to each other at will and to be used in conjunction with each other. With the development of the communication industry, the capacity of optical fiber is getting larger and larger, and the requirements for the splice tray in the optical cable distribution box are getting higher and higher. In other words, after multiple optical fibers are spliced ​​in the splice tray, the remaining optical fibers usually need to be coiled in the splice tray and led out from the outlet of the splice tray.

[0003] In the existing optical fiber splice tray, the device for fixing the splice protection tube in the optical fiber splice tray is multiple card slots of the same size. Most splice trays are only compatible with single-core fiber splice protection sleeves. When it is necessary to be compatible with multi-core ribbon optical fiber splice protection sleeves, the entire sleeve must be replaced. This requires a lot of work and the production cost is relatively high. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that a multi-core ribbon optical fiber fusion protection sleeve needs to be replaced as a whole, and a multi-layer optical fiber fusion tray for a communication box is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A multi-layer optical fiber fusion splicing tray for a communication box comprises an installation bottom shell, and an installation top plate which is rotated on the installation bottom shell by hinges, and further comprises: an installation mechanism which is fixed to the inner wall of the installation bottom shell, wherein the installation mechanism comprises two limiting partitions which are fixed to the inner bottom wall of the installation bottom shell, an installation area is formed between the two limiting partitions, a clamping plate is arranged opposite to the installation area on the inner side of the two limiting partitions, and an elastic clamping plate is arranged at the bottom of the clamping plate; a fusion splicing mechanism which is installed on the inner wall of the installation area, and the two sides of the fusion splicing mechanism are fixedly connected to the elastic clamping plate.

[0006] Preferably, the welding mechanism includes a concave welding plate installed in the installation area, the inner bottom wall of the concave welding plate is fixedly connected to a plurality of partition partitions, a welding area is provided in the middle position of the concave welding plate, the welding area is located on one side of the partition partition, and the inner bottom wall of the concave welding plate is fixedly connected to a boss, and the boss is close to one side of the partition partition.

[0007] Preferably, partition notches are provided between a plurality of the partition partitions, and elastic protrusions are fixedly connected to the tops of a plurality of the partition partitions, and the elastic protrusions are located directly above the partition notches.

[0008] Preferably, fiber inlet and outlet ports are respectively provided on both sides of the mounting base shell, and the top of the mounting base shell is respectively fixedly connected with a first limiting coil and a second limiting coil, the first limiting coil is located on the left and right sides of the mounting base shell, and the second limiting coil is located on the front and rear sides of the mounting base shell, and the inner bottom wall of the mounting base shell is respectively fixedly connected with an arc-shaped baffle and a support column, and the support column is located on the side wall of the arc-shaped baffle.

[0009] Preferably, a through groove is provided on the inner bottom wall of the installation bottom shell, and the through groove is located on the inner bottom wall of the fiber inlet and outlet.

[0010] Preferably, a plurality of convex ribs are fixedly connected to the surface of the mounting top plate, and limiting grooves are formed between the plurality of convex ribs, and the limiting grooves correspond to the positions of the mounting mechanisms.

[0011] Preferably, the installation mechanism further comprises a positioning rod fixedly connected to the top of the limiting partition, a positioning block is sleeved on the surface of the positioning rod, and the positioning block is fixedly connected to the side wall of the concave welding plate.

[0012] Preferably, the surfaces of the mounting top plate and the fiber inlet and outlet are both provided with movable elastic pressing blocks, and the positions of the movable elastic pressing blocks on the mounting top plate and the fiber inlet and outlet surfaces correspond to each other.

[0013] Preferably, a plastic buckle is fixedly connected to the front side of the mounting top plate, and a plastic card block is fixedly connected to the front side of the mounting bottom shell, and the plastic buckle is snapped onto the surface of the plastic card block.

[0014] A method for using a multi-layer optical fiber splicing tray for a communication box mainly comprises the following steps: S1, cable entry, first pass one end of the optical fiber through the installation bottom shell, and then use the fusion mechanism installed in the installation mechanism to reasonably lay out and install the optical fiber; S2. Installation: By installing two limiting partitions in the installation bottom shell, an installation area can be formed. The fusion mechanism can be installed through the installation area. Under the setting of the card board, when the fusion mechanism is installed in the card board, it will be snapped into the bottom of the card board through the elastic buckle, so as to complete the installation of the fusion mechanism. By installing different fusion mechanisms, it can be replaced according to the optical fiber bundle or ribbon, so as to improve the flexibility of the optical fiber fusion tray; S3, closing the cover. When the optical fiber is installed, the top plate is closed on the top of the bottom shell, and then the plastic buckle is snapped onto the surface of the plastic card block to lock the bottom shell and the top plate.

[0015] Compared with the prior art, the present invention provides a multi-layer optical fiber splicing tray for a communication box, which has the following beneficial effects: 1. The communication box uses a multi-layer optical fiber fusion plate. Through the cooperation between the limiting partition, the installation area, the card plate and the elastic buckle, different fusion plates can be disassembled and replaced. Through this setting, different fusion plates can be flexibly replaced to install bundle or strip fusion protection sleeves, avoiding the problem of cumbersome installation methods, further reducing the workload, and the production cost is relatively low.

[0016] 2. The communication box uses a multi-layer optical fiber fusion plate. Through the cooperation between the concave fusion plate, the partition partition, the fusion area and the boss, the installed optical fiber can be reasonably arranged. Through this setting, the number of optical fiber installations can be increased in a limited space, avoiding the problem of clutter in the installation of optical fibers, thereby effectively improving the protection performance of optical fiber fusion.

[0017] 3. The communication box uses a multi-layer optical fiber fusion plate. Through the cooperation between the installation top plate, the installation mechanism and the movable elastic pressure block, the optical fiber surface can be pressed and limited. Through this setting, the optical fiber can be limited during installation to avoid the problem of optical fiber not moving or entangled in the plate, further improve the quality of the entire optical cable transmission line, and reduce the failure rate of the transmission pipeline.

[0018] The parts not involved in the device are the same as the prior art or can be implemented by the prior art. The present invention can flexibly replace different fusion plates to install bundle or strip fusion protection sleeves, and can increase the number of optical fiber installations in a limited space, avoiding the problem of clutter in the installation of optical fibers. The installation can effectively improve the protective performance of optical fiber fusion, avoid the problem of complicated installation methods, further reduce the workload, and the production cost is relatively low. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of a multi-layer optical fiber splicing tray for a communication box proposed by the present invention; Figure 2 This is a schematic diagram of the structure of an installation mechanism for a multi-layer optical fiber splicing tray for a communication box proposed by the present invention; Figure 3 This is a schematic diagram of the installation base shell and installation mechanism structure of a multi-layer optical fiber fusion splicing tray for a communication box proposed by the present invention; Figure 4 This is a schematic diagram of the installation base shell and the fusion mechanism structure of a multi-layer optical fiber fusion splicing tray for a communication box body proposed by the present invention; Figure 5 A multi-layer optical fiber splicing tray for a communication box proposed by the present invention Figure 2 The enlarged structural diagram at A in the middle; Figure 6 A schematic diagram of the structure of a fusion splicing mechanism of a multi-layer optical fiber fusion splicing tray for a communication box proposed by the present invention; Figure 7 This is a schematic diagram of the installation top plate structure of a multi-layer optical fiber splicing tray for a communication box body proposed by the present invention; Figure 8 This is a schematic diagram of the installation bottom shell and installation top plate structure of a multi-layer optical fiber fusion splicing tray for a communication box proposed by the present invention.

[0020] In the figure: 1. Install the bottom shell; 11. Fiber inlet and outlet; 12. First limiting wrap; 13. Second limiting wrap; 14. Arc-shaped baffle; 15. Support column; 16. Through groove; 2. Install the top plate; 21. Protruding rib; 22. Limiting groove; 3. Installation mechanism; 31. Limiting partition; 32. Installation area; 33. Card plate; 34. Elastic buckle; 35. Positioning rod; 36. Positioning block; 4. Welding mechanism; 41. Concave welding plate; 42. Partition partition; 421. Partition notch; 422. Elastic protrusion; 43. Welding area; 44. Boss; 5. Movable elastic pressure block; 6. Plastic buckle; 7. Plastic block. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] In one embodiment, reference Figure 1-Figure 8, a multi-layer optical fiber fusion splicing tray for a communication box, comprising an installation bottom shell 1, and an installation top plate 2 which is rotated above the installation bottom shell 1 through hinges, and also comprises: an installation mechanism 3, which is fixed to the inner wall of the installation bottom shell 1, wherein the installation mechanism 3 comprises two limiting partitions 31 fixed to the inner bottom wall of the installation bottom shell 1, and an installation area 32 is formed between the two limiting partitions 31, and a clamping plate 33 is arranged opposite to the inner side of the two limiting partitions 31 near the installation area 32, and an elastic buckle 34 is arranged at the bottom of the clamping plate 33; a fusion mechanism 4, which is installed on the inner wall of the installation area 32, and the two sides of the fusion mechanism 4 are fixedly connected to the elastic buckle 34, and the two sides of the installation bottom shell 1 are respectively provided with an inlet and outlet fiber port 11, and the top of the installation bottom shell 1 is respectively fixedly connected with a first limiting coil 12 and a second limiting coil 13, the first limiting coil 12 is located on the left and right sides of the installation bottom shell 1, and the second limiting coil 13 is located on the front and rear sides of the installation bottom shell 1, and the inner bottom wall of the installation bottom shell 1 is respectively fixedly connected with an arc-shaped The baffle 14 and the support column 15, the support column 15 is located on the side wall of the arc-shaped baffle 14, the inner bottom wall of the installation bottom shell 1 is provided with a through groove 16, and the through groove 16 is located on the inner bottom wall of the fiber inlet and outlet port 11, and a plurality of convex ribs 21 are fixedly connected to the surface of the installation top plate 2, and a limiting groove 22 is formed between the plurality of convex ribs 21, and the limiting groove 22 corresponds to the position of the installation mechanism 3. The installation mechanism 3 also includes a positioning rod 35 fixedly connected to the top of the limiting partition 31, and a positioning block 36 is sleeved on the surface of the positioning rod 35, and the positioning block 36 is fixedly connected to the side wall of the concave welding plate 41, and a plastic buckle 6 is fixedly connected to the front side of the installation top plate 2, and a plastic card block 7 is fixedly connected to the front side of the installation bottom shell 1, and the plastic buckle 6 is clamped on the surface of the plastic card block 7. Under the setting of the through groove 16, the optical fibers can be sequentially passed through the through groove 16 and led out, so that the optical fibers in the fiber inlet and outlet port 11 can be bound, thereby further strengthening the strength of the optical fibers installed in the installation bottom shell 1.

[0024] By adopting such a scheme, through the setting of the installation area 32 formed by the limiting partition 31, different welding mechanisms 4 can be disassembled and replaced, so that different welding mechanisms 4 can be flexibly replaced to install bundle or strip welding protection sleeves, avoiding the problem of cumbersome installation methods, further reducing the workload, and the production cost is relatively low.

[0025] During the specific operation, firstly, the optical fiber can be introduced or led out by setting the fiber inlet and outlet ports 11 opened on both sides of the installation bottom shell 1, and the end of the optical fiber is introduced into one of the fiber inlet and outlet ports 11 to enter the interior of the installation bottom shell 1, and then the optical fiber can be coiled along the combination of the first limiting winding sheet 12, the second limiting winding sheet 13 and the arc-shaped baffle sheet 14, so that the end of the optical fiber is located at the installation mechanism 3, and then the fusion splicing mechanism 4 is used to fusion-limit the optical fiber, and under the setting of the limiting partition plate 31, an installation area 32 can be formed in the installation bottom shell 1, so that the fusion splicing mechanism 4 is installed in the installation area 32, and then the optical fiber can be introduced into or led out by the fusion splicing mechanism 4. The welding is reasonably arranged so that each core optical fiber has a separate space without affecting each other, so that the welded optical fiber inserted later will not affect the fixation of the original welded optical fiber, so that a welding mechanism 4 can orderly weld, protect and store multiple core optical fibers. Under the setting of the support column 15, the support performance of the arc-shaped baffle 14 can be strengthened. After the optical fiber installation and welding is completed, the installation top plate 2 and the installation bottom shell 1 are closed and fixed to the surface of the installation top plate 2 by the convex rib 21, which can strengthen the overall strength of the installation top plate 2. At the same time, a limiting groove 22 is formed, which can be just above the welding mechanism 4, so as not to affect the transmission of the optical fiber welded inside the welding mechanism 4; When it is necessary to replace a different welding mechanism 4, it is only necessary to deform the limiting partition 31 to a certain amount on both sides to separate the card plate 33 from the top of the elastic buckle 34. At this time, the restraining force on the elastic buckle 34 is released, so that the welding mechanism 4 can be directly moved upward for disassembly. Since the limiting partition 31 is made of plastic material and has good plasticity, it can be deformed and reset within a certain range, so that it can be repeatedly installed and fixed during the next installation.

[0026] In one embodiment, reference Figure 6A multi-layer optical fiber splicing tray for a communication box includes an installation bottom shell 1, and an installation top plate 2 that rotates above the installation bottom shell 1 through a hinge, and also includes: an installation mechanism 3, which is fixed to the inner wall of the installation bottom shell 1, wherein the installation mechanism 3 includes two limiting partitions 31 fixed to the inner bottom wall of the installation bottom shell 1, and an installation area 32 is formed between the two limiting partitions 31, and a clamping plate 33 is arranged opposite to the installation area 32 on the inner side of the two limiting partitions 31, and an elastic buckle 34 is arranged at the bottom of the clamping plate 33; a fusion mechanism 4, which is installed on the inner wall of the installation area 32, and the two sides of the fusion mechanism 4 are fixedly connected to the elastic The buckle 34, the welding mechanism 4 includes a concave welding plate 41 installed in the installation area 32, the inner bottom wall of the concave welding plate 41 is fixedly connected with a plurality of partition partitions 42, a welding area 43 is provided in the middle position of the concave welding plate 41, the welding area 43 is located on one side of the partition partition 42, the inner bottom wall of the concave welding plate 41 is fixedly connected with a boss 44, the boss 44 is close to one side of the partition partition 42, a plurality of partition partitions 42 are provided with partition slots 421, the tops of the plurality of partition partitions 42 are fixedly connected with elastic protrusions 422, and the elastic protrusions 422 are located directly above the partition slots 421.

[0027] By adopting such a solution, the installed optical fibers can be reasonably arranged through the fusion splicing mechanism 4, the number of optical fibers installed can be increased within a limited space, and the problem of disorderly installation of the optical fibers can be avoided.

[0028] During specific work, the concave welding plate 41 can be installed in the installation area 32. Since the clamping plate 33 and the positioning block 36 are fixed on both sides of the concave welding plate 41, when the concave welding plate 41 moves downward, the positioning block 36 is first aligned with the top of the positioning rod 35, so that the concave welding plate 41 can play a positioning and guiding role when it moves downward. When the clamping plate 33 is attached to the top of the elastic buckle 34, since the concave welding plate 41 still needs to continue to move downward, the clamping plate 33 will pass the elastic buckle 34 and be located below, thereby constraining the top of the clamping plate 33, so as to complete the rapid assembly and fixation of the concave welding plate 41. When installing the optical fiber, under the multiple settings of the partition partitions 42 in the concave welding plate 41, the optical fiber can be reasonably arranged, so that The number of optical fibers installed in a limited space is increased. By setting the partitioning slot 421, the optical fiber can be installed in the partitioning slot 421, and then the elastic protrusion 422 can constrain the upper part of the installed optical fiber, so that it is not easy to pull up the optical fiber in the partitioning slot 421 without human interference, so that the optical fiber lines can be installed separately, avoiding the problem of messy installation of the optical fiber, so that the installation can effectively improve the protection performance of optical fiber fusion. Under the setting of the fusion zone 43, additional operating space can be provided for the installation of bundled or strip-shaped fusion protection sleeves, avoiding the problem of inconvenience in operation due to small space. Under the setting of the boss 44, the bottom support can be provided when the optical fiber is installed, avoiding the problem of easy damage to the optical fiber at the bottom of the installation bottom shell 1.

[0029] In one embodiment, reference Figure 8 A multi-layer optical fiber fusion splicing tray for a communication box comprises an installation bottom shell 1, and an installation top plate 2 which is rotated on the installation bottom shell 1 through hinges, and also comprises: an installation mechanism 3 which is fixed to the inner wall of the installation bottom shell 1, wherein the installation mechanism 3 comprises two limiting partitions 31 which are fixed to the inner bottom wall of the installation bottom shell 1, and an installation area 32 is formed between the two limiting partitions 31, and a card plate 33 is arranged opposite to the installation area 32 on the inner side of the two limiting partitions 31, and an elastic buckle 34 is arranged at the bottom of the card plate 33; a fusion mechanism 4 which is installed on the inner wall of the installation area 32, and the two sides of the fusion mechanism 4 are fixedly connected to the elastic buckle 34, and the surfaces of the installation top plate 2 and the fiber inlet and outlet 11 are both provided with movable elastic pressing blocks 5, and the positions of the movable elastic pressing blocks 5 on the surfaces of the installation top plate 2 and the fiber inlet and outlet 11 correspond to each other.

[0030] By adopting such a scheme, the movable elastic pressure block 5 is respectively installed on the installation bottom shell 1 and the installation top plate 2, which can play a limiting role during the installation of the optical fiber, avoid the problem of the optical fiber not moving or entangled in the disk, further improve the quality of the entire optical cable transmission line, and reduce the failure rate of the transmission pipeline.

[0031] During specific operation, the movable elastic pressing block 5 is installed on the fiber inlet and outlet port 11 and the installation top plate 2, and the installation top plate 2 and the movable elastic pressing block 5 in the fiber inlet and outlet port 11 are in the same vertical direction. When the installation top plate 2 and the installation bottom shell 1 are closed, the movable elastic pressing blocks 5 can fit together to shield the fiber inlet and outlet port 11, thereby reducing dust from entering the installation bottom shell 1, thereby affecting the transmission quality of the optical fiber in the installation bottom shell 1, and when the optical fiber is installed above the movable elastic pressing block 5, the movable elastic pressing block 5 above the installation top plate 2 is squeezed on the surface of the optical fiber, which can limit the optical fiber up and down twice, thereby avoiding the problem of the optical fiber not moving or entangled in the disk, further improving the quality of the entire optical cable transmission line, and reducing the failure rate of the transmission pipeline.

[0032] In addition, the movable elastic pressure block 5 can be made of elastic materials such as sponge, silicone, plastic, etc., preferably sponge. Sponge has good moisture-proof and dust-proof effects, which can reduce most of the dust or moisture entering the installation base shell 1, thereby avoiding dust or moisture affecting the transmission quality of the optical fiber.

[0033] Reference Figure 1-Figure 8 A method for using a multi-layer optical fiber splicing tray for a communication box mainly includes the following steps: S1, incoming line, first pass one end of the optical fiber through the installation bottom shell 1, and then use the fusion mechanism 4 installed in the installation mechanism 3 to reasonably arrange and install the optical fiber; S2. Installation. Two limiting partitions 31 are installed in the installation bottom shell 1 to form an installation area 32. The fusion mechanism 4 can be installed through the installation area 32. Under the setting of the card board 33, when the fusion mechanism 4 is installed in the card board 33, it will be snapped into the bottom of the card board 33 through the elastic buckle 34, so as to complete the installation of the fusion mechanism 4. By installing different fusion mechanisms 4, they can be replaced according to the optical fiber bundle or ribbon, so as to improve the flexibility of the optical fiber fusion tray; S3, closing the cover. When the optical fiber is installed, the top plate 2 is closed on the top of the bottom shell 1, and then the plastic buckle 6 is clamped on the surface of the plastic clamping block 7 to lock the bottom shell 1 and the top plate 2.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multi-layer optical fiber splicing tray for a communication box, comprising a mounting bottom shell (1), and a mounting top plate (2) which is rotated above the mounting bottom shell (1) by hinges, characterized in that: Also includes: The mounting mechanism (3) is fixed to the inner wall of the mounting bottom shell (1), wherein the mounting mechanism (3) comprises two limiting baffles (31) fixed to the inner bottom wall of the mounting bottom shell (1), a mounting area (32) is formed between the two limiting baffles (31), and clamping plates (33) are arranged opposite to each other on the inner sides of the two limiting baffles (31) near the mounting area (32), and an elastic buckle (34) is arranged at the bottom of the clamping plate (33); The welding mechanism (4) is installed on the inner wall of the installation area (32), and the two sides of the welding mechanism (4) are fixedly connected to the elastic buckles (34).

2. The multi-layer optical fiber splicing tray for a communication box according to claim 1, characterized in that: The welding mechanism (4) comprises a concave welding plate (41) installed in the installation area (32), the inner bottom wall of the concave welding plate (41) being fixedly connected to a plurality of partition partitions (42), a welding area (43) being provided in the middle of the concave welding plate (41), the welding area (43) being located on one side of the partition partition (42), and a boss (44) being fixedly connected to the inner bottom wall of the concave welding plate (41), the boss (44) being close to one side of the partition partition (42).

3. The multi-layer optical fiber splicing tray for a communication box according to claim 2, characterized in that: Partition notches (421) are provided between a plurality of the partition partitions (42), and elastic protrusions (422) are fixedly connected to the tops of a plurality of the partition partitions (42), wherein the elastic protrusions (422) are located directly above the partition notches (421).

4. The multi-layer optical fiber splicing tray for a communication box according to claim 1, characterized in that: The installation base shell (1) is provided with fiber inlet and outlet ports (11) on both sides, and the top of the installation base shell (1) is fixedly connected with a first limiting wrapping sheet (12) and a second limiting wrapping sheet (13), the first limiting wrapping sheet (12) is located on the left and right sides of the installation base shell (1), and the second limiting wrapping sheet (13) is located on the front and rear sides of the installation base shell (1), and the inner bottom wall of the installation base shell (1) is fixedly connected with an arc-shaped baffle (14) and a support column (15), and the support column (15) is located on the side wall of the arc-shaped baffle (14).

5. The multi-layer optical fiber splicing tray for a communication box according to claim 1, characterized in that: The inner bottom wall of the installation bottom shell (1) is provided with a through groove (16), and the through groove (16) is located on the inner bottom wall of the fiber inlet and outlet port (11).

6. The multi-layer optical fiber splicing tray for a communication box according to claim 1, characterized in that: A plurality of convex ribs (21) are fixedly connected to the surface of the mounting top plate (2), and a limiting groove (22) is formed between the plurality of convex ribs (21), wherein the limiting groove (22) corresponds to the position of the mounting mechanism (3).

7. The multi-layer optical fiber splicing tray for a communication box according to claim 1, characterized in that: The mounting mechanism (3) further comprises a positioning rod (35) fixedly connected to the top of the limiting partition (31), a positioning block (36) being sleeved on the surface of the positioning rod (35), and the positioning block (36) being fixedly connected to the side wall of the concave welding plate (41).

8. The multi-layer optical fiber splicing tray for a communication box according to claim 1, characterized in that: The surfaces of the mounting top plate (2) and the fiber inlet and outlet port (11) are both provided with movable elastic pressing blocks (5), and the positions of the movable elastic pressing blocks (5) on the surfaces of the mounting top plate (2) and the fiber inlet and outlet port (11) correspond to each other.

9. The multi-layer optical fiber splicing tray for a communication box according to claim 1, characterized in that: A plastic buckle (6) is fixedly connected to the front of the mounting top plate (2), a plastic clamping block (7) is fixedly connected to the front of the mounting bottom shell (1), and the plastic buckle (6) is clamped on the surface of the plastic clamping block (7).

10. A method for using a multi-layer optical fiber splice tray for a communication box, comprising the multi-layer optical fiber splice tray for a communication box according to claim 9, characterized in that: The main steps include: S1, cable entry, first pass one end of the optical fiber through the installation base shell (1), and then use the fusion mechanism (4) installed in the installation mechanism (3) to properly arrange and install the optical fiber; S2, installation, by installing two limiting partitions (31) in the installation bottom shell (1), an installation area (32) can be formed, and the fusion mechanism (4) can be installed through the installation area (32). Under the setting of the card plate (33), when the fusion mechanism (4) is installed in the card plate (33), it will be snapped into the bottom of the card plate (33) through the elastic buckle (34), thereby completing the installation of the fusion mechanism (4). By installing different fusion mechanisms (4), they can be replaced according to the bundle shape or ribbon shape of the optical fiber, thereby improving the flexibility of the optical fiber fusion tray; S3, closing the cover. When the optical fiber is installed, the top plate (2) is closed on the top of the bottom shell (1), and then the plastic buckle (6) is snapped onto the surface of the plastic block (7), so as to lock the bottom shell (1) and the top plate (2).

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