Optical cable terminal box

Abstract

The utility model discloses an optical cable terminal box, and relates to the technical field of optical fiber communication, the optical cable terminal box comprises a bottom box, a box cover and a first elastic sealing member, an accommodating groove is formed in the bottom box, the side wall of the accommodating groove is provided with a first optical cable access hole communicated with the notch of the accommodating groove, and the box cover is hinged with the bottom box and seals the notch of the accommodating groove; the first elastic sealing element is in sealing connection with the periphery of the first optical cable access hole and separates the first optical cable access hole from the accommodating groove, the first elastic sealing element elastically abuts against the box cover, an optical cable fixing hole and a deformation joint are formed in the first elastic sealing element, and the optical cable fixing hole corresponds to the first optical cable access hole; the deformation joint is communicated with the optical cable fixing hole and a notch of the accommodating groove. Through the arrangement of the deformation joint, the first elastic sealing element can adapt to the installation and sealing of optical cables with different diameters, the operation is convenient, the problem of accurate alignment is avoided, the situation that the sealing performance is reduced due to the reduction of the alignment accuracy is avoided, and the durability of the first elastic sealing element is improved.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber communication technology, and in particular to an optical cable terminal box. Background Technology

[0002] Fiber optic terminal boxes are crucial equipment in fiber optic communication networks, primarily used for securing fiber optic cables, splicing fiber optic cables and pigtails, and housing and protecting excess fiber. When used outdoors, these boxes require excellent sealing to prevent rainwater or dust from entering and affecting internal optical components. Particular attention must be paid to the fiber optic cable entry holes, where a tight seal between the box and the cable's outer wall is essential.

[0003] In related technologies, two solutions are used to achieve sealing at the optical cable access hole: In the first solution, the optical cable access hole is located in the bottom box and an annular sealing element is provided at the optical cable access hole. The sealing element has an optical cable fixing hole, and the inner wall of the optical cable fixing hole is press-fitted with the optical cable to achieve sealing. This solution can only be used for a single type of optical cable, has poor applicability, and is inconvenient for optical cable access operations. In the second solution, the sealing element is divided into two parts, one part is located in the box cover and the other part is located in the bottom box. This solution requires precise alignment of the two parts of the sealing element. After long-term use, the sealing element deforms, which reduces the alignment accuracy and the sealing effect, resulting in poor durability. Utility Model Content

[0004] The main purpose of this utility model is to propose an optical cable terminal box, which aims to improve the applicability of the sealing element at the optical cable access hole to various types of optical cables, the convenience of operation, and the durability of use.

[0005] To achieve the above objectives, the optical cable terminal box proposed in this utility model includes a bottom box, a cover, and a first elastic sealing member. The bottom box has a receiving groove, and the side wall of the receiving groove has a first optical cable access hole communicating with the opening of the receiving groove. The cover is hinged to the bottom box and closes the opening of the receiving groove. The first elastic sealing member is sealed to the periphery of the first optical cable access hole and separates the first optical cable access hole from the receiving groove. The first elastic sealing member elastically abuts against the cover. The first elastic sealing member has an optical cable fixing hole and a deformation joint. The optical cable fixing hole corresponds to the first optical cable access hole, and the deformation joint communicates the optical cable fixing hole with the opening of the receiving groove.

[0006] In one embodiment, the sidewall of the receiving groove is provided with at least two spaced-apart first optical cable access holes, and the first elastic seal is provided with at least two optical cable fixing holes and at least two expansion joints. Each optical cable fixing hole is provided in correspondence with a first optical cable access hole, and each expansion joint is connected to the opening of the receiving groove.

[0007] In one embodiment, a first extrusion groove is provided on the first elastic seal between each two adjacent expansion joints. The first extrusion groove is disposed facing the box cover. The side of the box cover facing the bottom box is provided with a first extrusion protrusion corresponding to the first extrusion groove. The first extrusion protrusion is configured to extrude the inner wall of the first extrusion groove so that the two side walls of the expansion joint abut against each other.

[0008] In one embodiment, the first elastic seal has a second extrusion groove on one side facing the bottom wall of the receiving groove, which is opposite to the first extrusion groove. The bottom wall of the receiving groove has a second extrusion protrusion, which elastically abuts against the inner wall of the second extrusion groove.

[0009] In one embodiment, a limiting member is provided in the receiving groove, and the first elastic sealing member is limited between the limiting member and the side wall of the receiving groove, and elastically abuts against the periphery of the limiting member and the first optical cable access hole, respectively.

[0010] In one embodiment, the limiting member is provided with a second optical cable access hole corresponding to the first optical cable access hole, and the first elastic sealing member elastically abuts against the periphery of the first optical cable access hole and the periphery of the second optical cable access hole respectively.

[0011] In one embodiment, the optical cable terminal box further includes a second elastic seal, and the bottom box is provided with a sealing groove extending along the periphery of the groove opening of the receiving groove, the second elastic seal being filled in the sealing groove and elastically abutting against the box cover.

[0012] In one embodiment, the second resilient seal is connected to the first resilient seal.

[0013] In one embodiment, the cover is provided with a shielding protrusion that extends into the first optical cable access hole and partially shields the first elastic seal.

[0014] In one embodiment, the width of the expansion joint is smaller than the diameter of the optical cable fixing hole, and / or the diameter of the optical cable fixing hole is smaller than the diameter of the first optical cable access hole.

[0015] The optical cable terminal box proposed in this utility model includes a bottom box, a cover, and a first elastic sealing member. A receiving groove is formed inside the bottom box, and a first optical cable access hole communicating with the groove opening of the receiving groove is provided on the side wall of the receiving groove. The cover is hinged to the bottom box and closes the groove opening of the receiving groove. The first elastic sealing member is sealed to the periphery of the first optical cable access hole and separates the first optical cable access hole from the receiving groove. The first elastic sealing member elastically abuts against the cover. The first elastic sealing member is provided with an optical cable fixing hole and an expansion joint. The optical cable fixing hole is correspondingly provided with the first optical cable access hole, and the expansion joint communicates the optical cable fixing hole with the groove opening of the receiving groove. This invention, by incorporating an expansion joint, allows the first elastic seal to expand and accommodate optical cables of various diameters within the cable fixing hole. This is faster and more convenient than inserting the cable directly into the fixing hole. Due to its inherent elasticity, the inner wall of the cable fixing hole tightly conforms to the outer wall of optical cables of different diameters after insertion. Furthermore, under the elasticity of the first elastic seal, the width of the expansion joint gradually decreases, and the two side walls of the expansion joint adhere to each other, achieving a seal. This improves the applicability of the first elastic seal to various types of optical cables and facilitates cable insertion. In addition, the first elastic seal is integrally located within the bottom box, ensuring its integrity when the box is opened. This avoids issues related to precise alignment and prevents a decrease in sealing performance due to reduced alignment accuracy over prolonged use, thus improving the durability of the first elastic seal. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the structure of an embodiment of the optical cable terminal box provided by this utility model;

[0018] Figure 2 for Figure 1 Exploded view of the optical fiber terminal box;

[0019] Figure 3 for Figure 2 Schematic diagram of the middle and bottom box structure;

[0020] Figure 4 for Figure 3 A sectional view along line A-A'.

[0021] Figure 5 Figure 2 Schematic diagram of the structure of the first elastic seal and the second seal;

[0022] Figure 6 for Figure 2 Schematic diagram of the middle box lid;

[0023] Figure 7 A schematic diagram of another embodiment of the optical cable terminal box provided by this utility model;

[0024] Figure 8 for Figure 7 A schematic diagram of the structure of the adapter card slot after installing multiple adapters;

[0025] Figure 9 for Figure 8 A schematic diagram of the adapter card slot.

[0026] Explanation of icon numbers:

[0027] 100. Optical fiber terminal box;

[0028] 1. Base box; 1a. Receiving groove; 1b. First optical cable access hole; 1c. Sealing groove; 11. Second extrusion protrusion; 12. Limiting component; 12a. Second optical cable access hole;

[0029] 2. Box lid; 21. First extrusion protrusion; 22. Covering protrusion; 23. Extrusion rib;

[0030] 3. First elastic seal; 3a. Optical cable fixing hole; 3b. Expansion joint; 3c. First extrusion groove; 3d. Second extrusion groove;

[0031] 4. Second elastic seal;

[0032] 5. Adapter socket; 51. First mounting wall; 51a. First mounting hole; 52. Second mounting wall; 52a. Second mounting hole; 53. Shaft seat; 53a. Shaft hole; 53b. Clearance notch;

[0033] 6. Fiber fusion tray; 61. Hinge shaft.

[0034] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0036] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0037] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0038] This utility model proposes an optical cable terminal box 100.

[0039] Please see Figure 2 , Figure 3 and Figure 5 In one embodiment of this utility model, the optical cable terminal box 100 proposed by this utility model includes a bottom box 1, a box cover 2, and a first elastic sealing member 3. A receiving groove 1a is formed inside the bottom box 1. A first optical cable access hole 1b communicating with the groove opening of the receiving groove 1a is provided on the side wall of the receiving groove 1a. The box cover 2 is hinged to the bottom box 1 and closes the groove opening of the receiving groove 1a. The first elastic sealing member 3 is sealed to the periphery of the first optical cable access hole 1b and separates the first optical cable access hole 1b from the receiving groove 1a. The first elastic sealing member 3 elastically abuts against the box cover 2. The first elastic sealing member 3 is provided with an optical cable fixing hole 3a and a deformation joint 3b. The optical cable fixing hole 3a is correspondingly provided with the first optical cable access hole 1b. The deformation joint 3b communicates the optical cable fixing hole 3a with the groove opening of the receiving groove 1a.

[0040] In this embodiment, the base box 1 is the basic structure of the entire optical cable terminal box 100. The receiving slot 1a formed inside the base box 1 is used to accommodate optical components such as optical fibers, optical fiber adapters, and fusion splice trays. Its shape can be designed as a cuboid, cylinder, or other structure according to actual needs to meet the spatial layout requirements of the optical cable terminal box 100 in different scenarios. The location and size of the first optical cable access hole 1b are adjusted according to the specifications of the optical cable and access requirements to ensure that the optical cable can smoothly enter the receiving slot 1a. The hinged connection between the cover 2 and the base box 1 allows the cover 2 to be easily opened and closed, facilitating the operation and maintenance of the optical cable in the receiving slot 1a. At the same time, the sealed fit between the cover 2 and the base box 1 can effectively prevent external environmental factors from affecting the internal components.

[0041] The first elastic seal 3 can be made of materials with good elasticity and durability, such as rubber or silicone. Preferably, it can be made of silicone gel or polyurethane gel. The shape and size of the optical cable fixing hole 3a can be designed according to the outer diameter of the optical cable to ensure that the optical cable can be smoothly inserted and fixed. Several common optical cable diameters can be selected as the adaptable range, such as 2~11mm. The inner diameter of the optical cable fixing hole 3a is slightly less than 2mm, and the first elastic seal 3 can deform so that the optical cable fixing hole 3a can fix an 11mm optical cable. The shape of the expansion joint 3b can be straight, zigzag, arc, etc. The expansion joint 3b is located on the side of the optical cable fixing hole 3a near the opening of the receiving groove 1a and penetrates the first elastic seal 3 to connect the optical cable fixing hole 3a and the opening of the receiving groove 1a. In this embodiment, when the expansion joint 3b is not opened, the two side walls of the expansion joint 3b abut against each other under the action of the elasticity of the first elastic seal 3. It should be noted that during manufacturing, the side of the first elastic seal 3 closest to the groove 1a can be designed with excess capacity. That is, the volume of the side of the first elastic seal 3 closest to the groove 1a during initial molding is larger than the expected final volume of the finished product. Then, a cutting process is performed to form a deformation joint 3b. The amount of cutting is controlled to be exactly equal to the excess capacity, thus obtaining a first elastic seal 3 with deformation joint 3b. However, due to the elasticity of the first elastic seal 3, the two inner walls of the deformation joint 3b interact with each other. To ensure a tight seal, external force is required to open the expansion joint 3b so that the two side walls are separated, allowing the optical cable to enter the optical cable fixing hole 3a along the expansion joint 3b. The inner wall of the optical cable fixing hole 3a is tightly fitted to the outer wall of the optical cable under the elastic action of the first elastic seal 3. After the optical cable enters the optical cable fixing hole 3a, the two side walls of the expansion joint 3b are fitted together under the elastic action, achieving fixation and sealing of the optical cable. This effectively prevents external moisture, dust, etc. from entering the receiving groove 1a, improving the sealing performance and reliability of the optical cable terminal box 100.

[0042] The first elastic seal 3 is sealed to the periphery of the first optical cable access hole 1b. This connection can be achieved by bonding or by using a limiting structure to press the first elastic seal 3 against the periphery of the first optical cable access hole 1b. Both connection methods ensure the sealing between the first elastic seal 3 and the first optical cable access hole 1b, preventing external environmental factors from affecting the internal components.

[0043] The first elastic seal 3 elastically abuts against the cover 2. Since the first optical cable access hole 1b is connected to the groove of the receiving groove 1a, this abutting relationship between the first elastic seal 3 and the cover 2 can ensure the sealing of the first optical cable access hole 1b after the cover 2 is closed. This prevents dust, rainwater, etc. from entering the optical cable terminal box 100 from the cover 2.

[0044] In summary, this utility model, by setting an expansion joint 3b, allows the first elastic sealing member 3 to expand the expansion joint 3b to accommodate optical cables of various diameters being inserted into the optical cable fixing hole 3a. Compared to inserting the optical cable into the fixing hole, this is faster and more convenient. Due to its own elasticity, after the optical cable is inserted into the fixing hole, the inner wall of the optical cable fixing hole 3a can tightly fit the outer wall of optical cables of different diameters. Furthermore, after the optical cable is inserted into the optical cable fixing hole 3a, under the elastic action of the first elastic sealing member 3, the width of the expansion joint 3b gradually decreases, and the two side walls of the expansion joint 3b fit together to achieve a seal. This improves the applicability of the first elastic sealing member 3 to various types of optical cables and facilitates the insertion of optical cables. In addition, the first elastic sealing member 3 is integrally located in the bottom box 1, and opening the box cover 2 does not affect the integrity of the first elastic sealing member 3. Therefore, it avoids the problem of precise alignment and prevents the sealing performance from decreasing due to reduced alignment accuracy after long-term use, thus improving the durability of the optical cable terminal box 100. The technical solution of this embodiment improves the sealing performance of the optical cable terminal box 100 while optimizing the optical cable access operation, and has good technical effects and application prospects.

[0045] Further, please refer to Figure 2 , Figure 3 and Figure 5 In one embodiment of the present invention, the side wall of the receiving groove 1a is provided with at least two spaced first optical cable access holes 1b, and the first elastic sealing member 3 is provided with at least two optical cable fixing holes 3a and at least two deformation joints 3b. Each optical cable fixing hole 3a is correspondingly provided with a first optical cable access hole 1b, and each deformation joint 3b is correspondingly connected to an optical cable fixing hole 3a and the groove opening of the receiving groove 1a.

[0046] In this embodiment, the sidewall of the receiving groove 1a is provided with multiple first optical cable access holes 1b. These access holes are spaced apart, and their number and spacing can be adjusted according to actual optical cable access requirements to improve the access capacity of the optical cable terminal box 100. This is suitable for scenarios that require handling a large number of optical cables, such as large communication base stations and data centers. The first elastic seal 3 is provided with multiple optical cable fixing holes 3a corresponding to the multiple first optical cable access holes 1b and multiple expansion joints 3b, so that each optical cable can be quickly and conveniently inserted into its corresponding optical cable fixing hole 3a through the expansion joint 3b. In addition, the multiple optical cable fixing holes 3a can be of the same diameter or different diameters to accommodate optical cables of a wider range of diameters.

[0047] Further, please refer to Figure 2 , Figure 5 and Figure 6 In one embodiment of the present invention, a first extrusion groove 3c is provided on the first elastic seal 3 between each pair of adjacent expansion joints 3b. The first extrusion groove 3c is disposed facing the box cover 2. The side of the box cover 2 facing the bottom box 1 is provided with a first extrusion protrusion 21 corresponding to the first extrusion groove 3c. The first extrusion protrusion 21 is configured to extrude the inner wall of the first extrusion groove 3c so that the two side walls of the expansion joint 3b abut against each other.

[0048] In this embodiment, to further enhance the sealing performance of the first elastic seal 3, two mutually cooperating structures are provided: a first compression groove 3c and a first compression protrusion 21. Specifically, a first compression groove 3c is provided on the first elastic seal 3 between every two adjacent expansion joints 3b. The shape and size of the first compression groove 3c can be designed according to actual needs, and can be V-shaped or arc-shaped. The side of the lid 2 facing the bottom box 1 is provided with a first compression protrusion 21 corresponding to the first compression groove 3c. When the lid 2 is closed, the first compression protrusion 21 enters the first compression groove 3c and applies pressure to the inner wall of the first compression groove 3c. This pressure causes the walls of the first elastic seal 3 on both sides of the expansion joint 3b to be compressed, thereby causing the two side walls of the expansion joint 3b to abut against each other and achieve a seal. The material of the first compression protrusion 21 can be the same as that of the lid 2 to ensure that it has sufficient hardness and strength. The first compression protrusion 21 can be connected to the lid 2 by a connecting structure such as screws or buckles, or it can be set as an integrally formed structure with the lid 2.

[0049] Because the first elastic seal 3 in this embodiment is provided with a compression groove, the width of the expansion joint 3b in this embodiment can be appropriately increased to improve the adaptability to optical cables of various diameters and the convenience of optical cable installation. For example, in its natural state, the two side walls of the expansion joint 3b can be spaced apart from each other, as long as the first compression protrusion 21 compresses the first compression groove 3c, the deformation of the first elastic seal 3 can cause the two side walls of the expansion joint 3b to press against each other to achieve a seal.

[0050] In this embodiment, the first extrusion protrusion 21 and the first extrusion groove 3c work together to precisely guide the first elastic seal 3 to deform towards both sides of the extrusion groove. This can increase the mutual abutment force between the two side walls of the deformation joint 3b, further enhancing the sealing performance of the optical cable terminal box 100. Moreover, the operation steps are simple, requiring only the box cover 2 to be closed. Therefore, it has good technical effects and application prospects.

[0051] Further, please refer to Figures 2 to 5 In one embodiment of the present invention, the first elastic sealing member 3 is provided with a second extrusion groove 3d on the side facing the bottom wall of the receiving groove 1a, which is opposite to the first extrusion groove 3c. The bottom wall of the receiving groove 1a is provided with a second extrusion protrusion 11, which elastically abuts against the inner wall of the second extrusion groove 3d.

[0052] In this embodiment, the shape and size of the second extrusion groove 3d can be designed according to actual needs, such as a V-shape or an arc. The shape of the second extrusion protrusion 11 is adapted to the shape of the second extrusion groove 3d so that the second extrusion protrusion 11 fits the second extrusion groove 3d. The first elastic seal 3 is provided in the receiving groove 1a, and the second extrusion protrusion 11 abuts against the inner wall of the second extrusion groove 3d. In conjunction with the previous embodiment, the box cover 2 is provided with a first extrusion protrusion 21, and the side of the first elastic seal 3 facing the box cover 2 is provided with a first extrusion groove 3c. The second extrusion groove 3d is arranged opposite to the first extrusion groove 3c. When the box cover 2 is closed, the inner wall of the second extrusion groove 3d and the second extrusion protrusion 11 are further squeezed and pressed against each other. This relative arrangement allows the first elastic seal 3 to be squeezed in both the upper and lower directions. This design also guides the first elastic seal 3 to deform to the left and right sides of the first extrusion groove 3c and the second extrusion groove 3d, so that the two side walls of the deformation joints 3b on the left and right sides abut against each other, further improving the sealing performance. In addition, the deformation guided by the second extrusion groove 3d and the second extrusion protrusion 11 acts more on the optical cable fixing hole 3a, so that the inner wall of the optical cable fixing hole 3a is in close contact with the outer wall of the optical cable, which further improves the sealing performance between the first elastic seal 3 and the optical cable.

[0053] Further, please refer to Figures 2 to 4 In one embodiment of the present invention, a limiting member 12 is provided in the receiving groove 1a, and a first elastic sealing member 3 is limited between the limiting member 12 and the side wall of the receiving groove 1a, and elastically abuts against the periphery of the limiting member 12 and the first optical cable access hole 1b respectively.

[0054] Furthermore, the limiting member 12 functions to limit the first elastic seal 3 and provide support, ensuring that the first elastic seal 3 abuts against the periphery of the first optical cable access hole 1b. The shape and size of the limiting member 12 can be designed according to actual needs, and it can be plate-shaped, column-shaped, or similar. Its height can be the same as the height of the first elastic seal 3, and it is offset from the first optical cable access hole 1b to avoid obstructing optical cable access. The limiting member 12 can be detachably connected to the inner wall of the receiving groove 1a via screws, clips, etc., or it can be integrally formed with the bottom box 1. The material of the limiting member 12 can be the same as the bottom wall of the receiving groove 1a, or it can be metal or other hard plastics to ensure sufficient hardness and strength.

[0055] The limiting member 12 is spaced apart from the side wall of the receiving groove 1a, which has the first optical cable access hole 1b. This gap is slightly smaller than the thickness of the first elastic seal 3. When the first elastic seal 3 is positioned between the limiting member 12 and the side wall of the receiving groove 1a, the first elastic seal 3 is compressed, and its elasticity causes it to press against the periphery of the first optical cable access hole 1b. This limiting design ensures that the first elastic seal 3 maintains a stable position during installation and use, and that it is not easily dislodged when subjected to external force or when the optical cable terminal box 100 is inverted.

[0056] This embodiment enhances the sealing performance between the first elastic seal 3 and the periphery of the first optical cable access hole 1b by setting a limiting component 12, effectively preventing external moisture and dust from entering, and ensuring that the first elastic seal 3 maintains a stable position during installation and use, thereby improving the overall stability of the optical cable terminal box 100. The design requires no additional seals or complex operating steps; sealing is achieved simply by installing the first elastic seal 3 into place, making the operation simple and quick.

[0057] Further, please refer to Figures 2 to 4 In one embodiment of the present invention, the limiting member 12 is provided with a second optical cable access hole 12a corresponding to the first optical cable access hole 1b, and the first elastic sealing member 3 elastically abuts against the periphery of the first optical cable access hole 1b and the periphery of the second optical cable access hole 12a respectively.

[0058] In this embodiment, the limiting member 12 avoids obstructing the first optical cable access hole 1b, preventing obstruction of optical cable access. Furthermore, multiple limiting functions can be achieved using a single limiting member 12, which is simpler and more convenient compared to a split design. Specifically, by providing a second optical cable access hole 12a on the limiting member 12, the position of the first optical cable access hole 1b is avoided, ensuring that the optical cable is not obstructed by the limiting member 12 during access, and guaranteeing that the optical cable can smoothly enter the receiving groove 1a. Simultaneously, this design uses a single limiting member 12 to perform multiple limiting functions, avoiding the problems of complex component assembly and high precision requirements that may occur in split designs. This greatly simplifies the structure of the optical cable terminal box 100, reducing production costs and assembly difficulty. The elastic contact between the first elastic sealing member 3 and the periphery of the first optical cable access hole 1b and the periphery of the second optical cable access hole 12a further enhances the sealing performance.

[0059] Further, please refer to Figure 2 , Figure 3 , Figure 5 and Figure 6 In one embodiment of the present invention, the optical cable terminal box 100 further includes a second elastic sealing member 4. The bottom box 1 is provided with a sealing groove 1c extending along the periphery of the groove opening of the receiving groove 1a. The second elastic sealing member 4 is filled in the sealing groove 1c and elastically abuts against the box cover 2.

[0060] In this embodiment, it can be understood that the first elastic seal 3 is installed on the side wall of the bottom box 1, mainly responsible for sealing the first optical cable access hole 1b. When the optical cable is inserted into the first optical cable access hole 1b, the first elastic seal 3 can tightly fit the outer wall of the optical cable, preventing external moisture and dust from entering the receiving groove 1a through the optical cable access hole. The second elastic seal 4 is installed at the opening of the receiving groove 1a of the bottom box 1. When the box cover 2 is closed, it elastically abuts against the box cover 2, further ensuring the sealing between the box cover 2 and the bottom box 1.

[0061] Specifically, a sealing groove 1c is specially designed on the bottom box 1. This sealing groove 1c extends along the periphery of the opening of the receiving groove 1a, and its shape and size match the second elastic seal 4, ensuring that the second elastic seal 4 can be tightly filled within it. The material of the second elastic seal 4 can be rubber, silicone, gel, etc., which have good elasticity and durability, and can adapt to the pressure when the lid 2 is closed, producing elastic deformation, thereby tightly fitting with the lid 2 and the sealing groove 1c to form an effective seal. Furthermore, a compression rib 23 corresponding to the sealing groove 1c can be provided on the periphery of the lid 2. The compression rib 23 can extend into the sealing groove 1c and compress the second elastic seal 4, so that the second elastic seal 4 abuts against the compression rib 23 and the inner wall of the sealing groove 1c to improve the sealing performance.

[0062] Further, please refer to Figure 2 and Figure 5 In one embodiment of this utility model, the second elastic seal 4 is connected to the first elastic seal 3.

[0063] In this embodiment, the connection between the second elastic seal 4 and the first elastic seal 3 enables the two seals to work together, preventing gaps between them and further enhancing the sealing performance of the optical cable terminal box 100. The first elastic seal 3 and the second elastic seal 4 can be connected by bonding or welding, or they can be configured as an integral structure. This design not only improves the reliability of the seal but also simplifies the installation process, as the two seals are installed as a whole, reducing operation steps and potential errors, and facilitating maintenance and replacement.

[0064] Further, please refer to Figure 1 and Figure 6 In one embodiment of this utility model, the cover 2 is provided with a shielding protrusion 22, which extends into the first optical cable access hole 1b and partially shields the first elastic sealing member 3.

[0065] In this embodiment, after the cover 2 is closed, the shielding protrusion 22 is located on the side of the first elastic seal 3 facing away from the receiving groove 1a, which protects the first elastic seal 3 and prevents external objects or dust from directly contacting the first elastic seal 3, thereby reducing wear and damage to the first elastic seal 3 caused by external factors and extending its service life. At the same time, the shielding protrusion 22 can also limit the side of the first elastic seal 3 facing away from the receiving groove 1a, ensuring that the first elastic seal 3 maintains a stable position during use and preventing displacement of the first elastic seal 3 due to external forces, thereby ensuring the reliability of the sealing performance.

[0066] Further, please refer to Figure 1 and Figure 5 In one embodiment of the present invention, the width of the expansion joint 3b is less than the diameter of the optical cable fixing hole 3a, and / or the diameter of the optical cable fixing hole 3a is less than the diameter of the first optical cable access hole 1b.

[0067] In this embodiment, the width of the expansion joint 3b is smaller than the diameter of the optical cable fixing hole 3a, allowing the first elastic seal 3 to better adapt to optical cables of different diameters while ensuring the sealing performance after the optical cable is inserted. Specifically, when the optical cable is inserted into the optical cable fixing hole 3a, the first elastic seal 3 is stretched open due to the presence of the expansion joint 3b, allowing the optical cable to pass through smoothly. After the optical cable is inserted, because the width of the expansion joint 3b is smaller than the diameter of the optical cable fixing hole 3a, that is, under the elastic action of the first elastic seal 3 or with the cooperation of the first extrusion protrusion 21 and the first extrusion groove 3c, it is easier for the two side walls of the expansion joint 3b to fit tightly against each other, forming a good sealing effect.

[0068] Furthermore, it is understandable that in order to ensure the smooth access of the optical cable, the diameter of the optical cable is smaller than the inner diameter of the first optical cable access hole 1b. In this embodiment, the diameter of the optical cable fixing hole 3a is smaller than the diameter of the first optical cable access hole 1b, so as to avoid the optical cable fixing hole 3a being too large and unable to fit the outer wall of the optical cable, thus ensuring the sealing performance of the first elastic sealing member 3.

[0069] The above explanation describes the structure, sealing and deformation principle, and beneficial effects of a single first elastic seal 3. It is understood that, in conjunction with the above content, another embodiment of this utility model can be obtained. Please refer to [link / reference needed]. Figures 2 to 5 In another embodiment, the bottom box 1 of the optical cable terminal box 100 is provided with first optical cable access holes 1b at both ends. It should be noted that in this embodiment, the optical cable access holes at both ends of the bottom box 1 can be coaxially arranged. When multiple first optical cable access holes 1b are provided at both ends of the bottom box 1, each first optical cable access hole 1b at one end can correspond one-to-one with the first optical cable access hole 1b at the other end and be coaxially arranged. The purpose of this arrangement is to reduce the width of the bottom box 1, allowing the uplink and downlink optical cables to be arranged relative to each other, saving space occupied by the optical cable terminal box 100. Correspondingly, a first elastic sealing element 3 is provided at both ends of the bottom box 1. Furthermore, a second elastic sealing element 4 is provided around the opening of the receiving groove 1a of the bottom box 1, and the second elastic sealing element 4 connects to the first elastic sealing elements 3 at both ends of the bottom box 1. The first elastic sealing elements 3 and the second elastic sealing elements 4 at both ends of the bottom box 1 can be made into an integral structure, for example, by using an injection molding process to form an integral structure. This facilitates installation and replacement, and avoids complex positioning work during installation, making it convenient and quick.

[0070] Furthermore, considering that the optical cable terminal box 100 needs to accommodate not only different types of optical cables but also different fiber optic adapters, specifically, after the optical cable is connected to the optical cable terminal box 100, it is subdivided into multiple optical fibers for easy wiring adjustment. The ends of the optical fibers are connected to fiber optic connectors, which can be plugged into fiber optic adapters. In practical applications, two optical fibers can be connected by plugging them into the two ends of the fiber optic adapter through fiber optic connectors to achieve a connection. After connection, the optical paths of the two optical fibers are connected, enabling the transmission of optical signals. Fiber optic adapters can be installed in the optical cable terminal box 100 through adapter slots 5. Due to the wide variety of existing fiber optic connectors, there are also a wide variety of fiber optic adapters. Each fiber optic adapter has a corresponding adapter slot 5, but the traditional optical cable terminal box 100 only has a single type of adapter slot 5, which cannot accommodate the installation of multiple fiber optic adapters.

[0071] To resolve the above issues, please refer to Figures 7 to 9In one embodiment of this utility model, the bottom box 1 is further provided with an adapter holder 5. The adapter holder 5 includes a first mounting wall 51 and a second mounting wall 52 that are parallel to each other and spaced apart. The bottom of both the first mounting wall 51 and the second mounting wall 52 is provided with a mounting plate. The mounting plate is provided with through holes for fasteners to pass through. In this way, both mounting walls can be installed on the bottom wall of the bottom box 1 by fasteners. Optionally, the mounting plate can also be provided on the side of the mounting wall to be installed on the side wall of the bottom box 1. It is understood that the two mounting walls can also be connected to the bottom box 1 by snap-fit ​​or other means. This embodiment does not limit this. The first mounting wall 51 is provided with a first mounting hole 51a. The first mounting hole 51a is formed by superimposing two rectangular holes with different lengths and widths, and aligning one corner of the two rectangular holes with different lengths and widths, thus forming an L-shaped first mounting hole 51a. Therefore, the first mounting hole 51a can be adapted to rectangular adapters of various sizes, such as SC, LC and other adapters. The second mounting wall 52 has a second mounting hole 52a, which is formed by a rectangular hole and a circular hole stacked together, forming a convex shape. The circular hole is designed to accommodate circular adapters, such as FC and ST adapters. The size of the rectangular hole forming the second mounting hole 52a is smaller than the size of the two rectangular holes forming the first mounting hole 51a, allowing for the adaptation of small rectangular adapters, such as MPO and LC adapters. The first mounting hole 51a and the second mounting hole 52a are correspondingly positioned, with one side wall of both holes being coplanar. The projection of the rectangular hole forming the second mounting hole 52a onto the first mounting wall 51 completely falls within the first mounting hole 51a. Therefore, one end of an adapter that can be adapted to the first mounting hole 51a can be mounted on the first mounting wall 51, while the other end is aligned with the second mounting hole 52a so that the fiber optic connector can pass through the second mounting hole 52a and be plugged into the adapter. Similarly, one end of an adapter that can fit the second mounting hole 52a can be mounted on the second mounting wall 52, while the other end is aligned with the first mounting hole 51a so that the fiber optic connector can pass through the first mounting hole 51a and be plugged into the adapter. Furthermore, a rectangular adapter that fits both the first mounting hole 51a and the second mounting hole 52a can pass through both the first mounting hole 51a and the second mounting hole 52a and be mounted on both the first mounting wall 51 and the second mounting wall 52. Because the first mounting wall 51 and the second mounting wall 52 are spaced apart, some clips on the outer wall of the adapter can extend into the gap between the two mounting walls to avoid misalignment. In addition, this mounting base of this embodiment is also compatible with SC-FC, LC-SC, and other adapter types, thus improving the adaptability of the optical cable terminal box 100 to various adapters.

[0072] Furthermore, please refer to Figures 7 to 9Considering that the fiber optic terminal box 100 integrates the fiber optic splice tray 6 to enrich the functions of the fiber optic terminal box 100, and to avoid increasing the area occupied by the base box 1 after setting the fiber optic splice tray 6, this embodiment stacks the fiber optic splice tray 6 and the adapter card holder 5 and hinges it to the adapter card holder 5. This can save the area occupied by the fiber optic splice tray 6, and also allow the fiber optic splice tray 6 to rotate flexibly, which is convenient for operation. Specifically, the fiber optic splice tray 6 has hinge shafts 61 on both sides, and the first mounting wall 51 and / or the second mounting wall 52 of the adapter has hinge seats on both sides. The hinge seats are rigid elastic structures with a certain elastic deformation capacity. The hinge seats can be integrally formed with the mounting walls and can be made of engineering plastics such as PC and PP. The hinge seats have shaft holes 53a for cooperating with the hinge shafts 61 and clearance notches 53b connecting the shaft holes 53a and the outer space. The hinge shafts 61 can be fixed by being inserted into the shaft holes 53a from the clearance notches 53b. Therefore, either side of the fiber fusion tray 6 can be hinged to the mounting wall and can be disassembled. This solves the problem of the fiber fusion tray 6 occupying the bottom wall of the base box 1 and allows for flexible disassembly and rotation of the fiber fusion tray 6, which facilitates operations such as fiber fusion tube installation and winding.

[0073] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An optical cable terminal box, characterized in that, The optical cable terminal box includes: The bottom box (1) has a receiving groove (1a) formed inside it, and the side wall of the receiving groove (1a) is provided with a first optical cable access hole (1b) communicating with the groove opening of the receiving groove (1a); Box lid (2), said box lid (2) is hinged to the bottom box (1) and closes the opening of the receiving groove (1a); and The first elastic seal (3) is sealed to the periphery of the first optical cable access hole (1b) and separates the first optical cable access hole (1b) from the receiving groove (1a). The first elastic seal (3) is elastically abutted against the cover (2). The first elastic seal (3) is provided with an optical cable fixing hole (3a) and a deformation joint (3b). The optical cable fixing hole (3a) is correspondingly provided with the first optical cable access hole (1b). The deformation joint (3b) connects the optical cable fixing hole (3a) with the groove of the receiving groove (1a).

2. The optical cable terminal box as described in claim 1, characterized in that, The side wall of the receiving groove (1a) is provided with at least two spaced first optical cable access holes (1b), and the first elastic seal (3) is provided with at least two optical cable fixing holes (3a) and at least two expansion joints (3b). Each optical cable fixing hole (3a) is provided with a first optical cable access hole (1b), and each expansion joint (3b) is provided with a corresponding connection between an optical cable fixing hole (3a) and the opening of the receiving groove (1a).

3. The optical cable terminal box as described in claim 2, characterized in that, A first extrusion groove (3c) is provided on the first elastic seal (3) between each two adjacent expansion joints (3b), and the first extrusion groove (3c) is disposed facing the cover (2); The box cover (2) has a first extrusion protrusion (21) on the side facing the bottom box (1) that corresponds to the first extrusion groove (3c). The first extrusion protrusion (21) is configured to extrude the inner wall of the first extrusion groove (3c) so that the two side walls of the deformation joint (3b) abut against each other.

4. The optical cable terminal box as described in claim 3, characterized in that, The first elastic seal (3) has a second extrusion groove (3d) on one side of the bottom wall facing the receiving groove (1a) and is opposite to the first extrusion groove (3c). The bottom wall of the receiving groove (1a) has a second extrusion protrusion (11) and the second extrusion protrusion (11) elastically abuts against the inner wall of the second extrusion groove (3d).

5. The optical cable terminal box as described in claim 1, characterized in that, The receiving groove (1a) is provided with a limiting member (12), and the first elastic sealing member (3) is located between the limiting member (12) and the side wall of the receiving groove (1a), and elastically abuts against the periphery of the limiting member (12) and the first optical cable access hole (1b) respectively.

6. The optical cable terminal box as described in claim 5, characterized in that, The limiting member (12) is provided with a second optical cable access hole (12a) corresponding to the first optical cable access hole (1b), and the first elastic sealing member (3) elastically abuts against the periphery of the first optical cable access hole (1b) and the periphery of the second optical cable access hole (12a).

7. The optical cable terminal box as described in claim 1, characterized in that, The optical cable terminal box also includes a second elastic seal (4). The bottom box (1) is provided with a sealing groove (1c) extending along the periphery of the groove opening of the receiving groove (1a). The second elastic seal (4) is filled in the sealing groove (1c) and elastically abuts against the box cover (2).

8. The optical cable terminal box as described in claim 7, characterized in that, The second elastic seal (4) is connected to the first elastic seal (3).

9. The optical cable terminal box as described in any one of claims 1 to 8, characterized in that, The cover (2) is provided with a shielding protrusion (22), which extends into the first optical cable access hole (1b) and partially shields the first elastic seal (3).

10. The optical cable terminal box as described in any one of claims 1 to 8, characterized in that, The width of the expansion joint (3b) is smaller than the diameter of the optical cable fixing hole (3a); And / or, the diameter of the optical cable fixing hole (3a) is smaller than the diameter of the first optical cable access hole (1b).

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