Mini connector box with steel wire fixing device

Abstract

The utility model discloses a mini connector box with a steel wire fixing device, which comprises a box body, a box cover is mounted on the box body, an optical cable access seat and an optical cable leading-out seat are respectively arranged at two ends of the box body, a first dustproof groove and a second dustproof groove are respectively arranged on the optical cable access seat and the optical cable leading-out seat, and the first dustproof groove and the second dustproof groove are communicated with each other. An optical cable access groove and a pair of optical cable leading-out grooves are formed in the surfaces of the optical cable access seat and the optical cable leading-out seat respectively, optical cable fixing assemblies are arranged on one side of the optical cable access seat and one side of the optical cable leading-out seat, a pair of clamping seats is fixedly connected in the box body, a light splitting assembly is installed between the clamping seats, and the optical cable access seat and the optical cable leading-out seat are fixedly connected in the box body. Steel wire fixing assemblies are arranged on the two sides of the light splitting assembly. The optical cable light splitting device is reasonable in size design, convenient to carry, low in manufacturing cost, high in product cost performance, and capable of realizing light splitting of an optical cable and effectively fixing a steel wire reinforcement part of the optical cable.

Description

Technical Field

[0001] The utility model belongs to the technical field of joint boxes, in particular to a mini joint box with a steel wire fixing device. Background Art

[0002] The splice box is a device used to protect the optical cable joints. It is usually used in optical cable networks to protect the optical cable joints, connections and branches to ensure that the optical cable is not affected by the external environment at the joints, such as moisture, dust, mechanical damage, etc.

[0003] At present, there are some junction box products on the market, such as a junction box with a publication number of CN213876119U disclosed on the Chinese Patent Network. This junction box has a sealing buckle installed at one end of the hinge of the upper shell and the lower shell to enhance the sealing of the upper shell and the lower shell on the shaft side, but there are some defects and deficiencies that need to be improved: (1) Some existing junction boxes are too large in size, which is not only inconvenient to carry, but also increases the manufacturing cost, thereby reducing the cost performance of the product; (2) Some existing junction boxes lack the splitting function, and it is difficult to split the signal of an input optical cable into multiple optical signals for output, so that the optical cable resources cannot be fully utilized, thereby reducing the overall utilization and efficiency of the network; (3) Due to the structural design of some existing junction boxes, it is difficult to effectively fix the steel wire reinforcement part of the optical cable, which will not only make the position of the steel wire reinforcement easily shift, thereby affecting the stability of the optical cable access, but also cause the internal wiring of the junction box to be messy, causing the steel wire reinforcement to bend and entangle. Therefore, in view of the above problems, the mini junction box with a steel wire fixing device provided by the utility model is of great significance. Utility Model Content

[0004] The utility model provides a mini junction box with a steel wire fixing device, which has a reasonable size design, is easy to carry, has a low manufacturing cost, and has a high cost performance ratio. The signal of an input optical cable can be divided into multiple optical signals for output through a splitter component, thereby realizing the splitting of the optical cable, so as to make full use of the optical cable resources, thereby greatly improving the overall utilization and efficiency of the network. By fixing the steel wire reinforcement part of the optical cable, not only can the stability of the steel wire reinforcement be effectively improved to prevent its position from being offset and affecting the stability of the optical cable access, but also the bending and entanglement of the steel wire reinforcement caused by the messy internal wiring of the junction box can be avoided. In summary, the problems in the background technology are solved.

[0005] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0006] A mini connector box with a steel wire fixing device of the utility model comprises a box body, a box cover is installed on the box body, and a mounting seat is fixedly connected to the front end face of the box body. A plurality of mounting holes are formed in the surface of the mounting seat. Optical cable access seats and optical cable outlet seats are respectively arranged at both ends of the box body. A first dust-proof groove and a second dust-proof groove are respectively formed in the optical cable access seat and the optical cable outlet seat. An optical cable access groove and a pair of optical cable outlet grooves are respectively formed in the surfaces of the optical cable access seat and the optical cable outlet seat. The optical cable access groove and the optical cable outlet groove are both arc-shaped. Optical cable fixing components are arranged on one side of each of the optical cable access seat and the optical cable outlet seat. A pair of clamping seats are fixedly connected in the box body. A gap is formed between the clamping seat and the bottom of the inner cavity of the box body. A beam splitting component is installed between the clamping seats. Steel wire fixing components are arranged on both sides of the beam splitting component;

[0007] The optical cable fixing component comprises a first optical cable fixing seat and a second optical cable fixing seat. The first optical cable fixing seat and the second optical cable fixing seat are fixedly connected in the box body and are respectively located on one side of the optical cable access seat and the optical cable outlet seat. A first optical cable fixing groove and a pair of second optical cable fixing grooves are respectively formed in the surfaces of the first optical cable fixing seat and the second optical cable fixing seat. The first optical cable fixing groove and the second optical cable fixing groove are both arc-shaped. A first optical cable fixing plate and a second optical cable fixing plate are respectively installed on the tops of the first optical cable fixing seat and the second optical cable fixing seat. A plurality of first threaded holes are formed in the surfaces of the first optical cable fixing plate and the second optical cable fixing plate. A first bolt matched with the first threaded hole is in threaded connection in the first threaded hole. A plurality of first threaded grooves matched with the first bolt are formed in the surfaces of the first optical cable fixing seat and the second optical cable fixing seat;

[0008] The beam splitting component comprises a beam splitting plate. Convex blocks are fixedly connected to both sides of the beam splitting plate. The convex blocks are respectively inserted into the corresponding clamping seats. A pair of beam splitting seats are installed on the beam splitting plate. A plurality of beam splitting grooves are formed in the top of the beam splitting seat. A plurality of clamping blocks are fixedly connected to one side of the beam splitting seat. A plurality of clamping grooves are formed on both sides of the top of the beam splitting plate;

[0009] The steel wire fixing component comprises two first steel wire fixing seats and three second steel wire fixing seats. A first steel wire fixing plate and a second steel wire fixing plate are respectively installed on each of the first steel wire fixing seat and the second steel wire fixing seat. A second threaded hole is formed in the surface of the first steel wire fixing plate and the second steel wire fixing plate. A second bolt matched with the second threaded hole is in threaded connection in the second threaded hole. A second threaded groove matched with the second bolt is formed in the surface of the first steel wire fixing seat and the second steel wire fixing seat.

[0010] Further, both the first dust-proof groove and the second dust-proof groove are rectangular, and a first dust-proof block and a second dust-proof block are respectively inserted into the first dust-proof groove and the second dust-proof groove. Both the first dust-proof block and the second dust-proof block are rectangular, and their lengths and thicknesses are respectively equal to the groove lengths and groove widths of the first dust-proof groove and the second dust-proof groove.

[0011] Further, the center of the first optical cable fixing groove is flush with the center of the optical cable access groove, and the centers of the second optical cable fixing grooves are flush with the centers of the optical cable outlet grooves.

[0012] Further, the first optical cable fixing groove is located between two adjacent first steel wire fixing seats, and each second optical cable fixing groove is located between two adjacent second steel wire fixing seats.

[0013] Further, the number of the card slots is the same as that of the card blocks, their widths are correspondingly equal, and the center of each card slot corresponds to the center of each card block one by one.

[0014] The utility model has the following beneficial effects compared with the prior art:

[0015] (1) When in use, the mini splice case with a steel wire fixing device in the utility model has reasonable size design, is convenient to carry, has low manufacturing cost and high product cost performance;

[0016] (2) When in use, the mini splice case with a steel wire fixing device in the utility model can split the signal of an input optical cable into multiple optical signals for output through the optical splitting component, so as to realize the optical splitting of the optical cable, make full use of the optical cable resources, and then greatly improve the overall utilization rate and efficiency of the network;

[0017] (3) When in use, the mini splice case with a steel wire fixing device in the utility model can fix the steel wire strengthening part of the optical cable through the steel wire fixing component, which can not only effectively improve the stability of the steel wire strengthening part to prevent its position from shifting and affecting the stability of optical cable access, but also avoid the internal wiring of the splice case from being messy and causing the steel wire strengthening part to bend and wind.

[0018] Of course, it is not necessary for any product implementing the utility model to achieve all the above advantages simultaneously. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 Schematic diagram of the structure of a mini joint box with a steel wire fixing device according to the present utility model;

[0021] Figure 2 Schematic diagram of the structure of the box body in the present utility model;

[0022] Figure 3 Schematic diagram of the structure of the first optical cable fixing plate and the second optical cable fixing plate in the present utility model;

[0023] Figure 4 Schematic diagram of the structure of the optical splitter plate in the present utility model;

[0024] Figure 5 Schematic diagram of the structure of the optical splitter base in the present utility model;

[0025] Figure 6 Schematic diagram of the structure of the first steel wire fixing plate and the second steel wire fixing plate in the present utility model;

[0026] Figure 7 Schematic diagram of the optical cable wiring in the present utility model.

[0027] In the accompanying drawings, the list of components represented by each reference numeral is as follows:

[0028] 1. Box body; 2. Box cover; 3. Mounting base; 4. Mounting hole; 5. Optical cable access seat; 6. Optical cable export seat; 7. First dust-proof groove; 8. Second dust-proof groove; 9. Optical cable access groove; 10. Optical cable export groove; 11. Clamping seat; 12. First optical cable fixing seat; 13. Second optical cable fixing seat; 14. First optical cable fixing groove; 15. Second optical cable fixing groove; 16. First optical cable fixing plate; 17. Second optical cable fixing plate; 18. First threaded hole; 19. First bolt; 20. First threaded groove; 21. Optical splitter plate; 22. Protrusion; 23. Optical splitter base; 24. Optical splitter groove; 25. Clamping block; 26. Card slot; 27. First steel wire fixing seat; 28. Second steel wire fixing seat; 29. First steel wire fixing plate; 30. Second steel wire fixing plate; 31. Second threaded hole; 32. Second bolt; 33. Second threaded groove; 34. First dust-proof block; 35. Second dust-proof block. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0030] In the description of the present utility model, it should be understood that terms such as "relative", "one end", "inside", "lateral", "end", "both ends", "both sides", "front", "one end face", "the other end face", etc., indicating the orientation or positional relationship, are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0031] Please refer to Figure 1-7 As shown, a mini joint box with a steel wire fixing device of the present utility model includes a box body 1, a box cover 2 is installed on the box body 1, and a mounting seat 3 is fixedly connected to the front end face of the box body 1. A plurality of mounting holes 4 are formed on the surface of the mounting seat 3, and fasteners such as screws can be inserted into the mounting holes 4. The joint box can be fixed at a designated position for use through the fasteners. Optical cable access seats 5 and optical cable outlet seats 6 are respectively arranged at both ends of the box body 1. First dust-proof grooves 7 and second dust-proof grooves 8 are respectively formed on the optical cable access seats 5 and the optical cable outlet seats 6, and an optical cable access groove 9 and a pair of optical cable outlet grooves 10 are respectively formed on the surfaces of the optical cable access seats 5 and the optical cable outlet seats 6. Both the optical cable access groove 9 and the optical cable outlet groove 10 are arc-shaped. Optical cable fixing components are arranged on one side of both the optical cable access seat 5 and the optical cable outlet seat 6. A pair of card seats 11 are fixedly connected inside the box body 1. A gap is formed between the card seats 11 and the bottom of the inner cavity of the box body 1, and a light splitting component is installed between the card seats 11. Steel wire fixing components are arranged on both sides of the light splitting component;

[0032] The optical cable fixing assembly includes a first optical cable fixing base 12 and a second optical cable fixing base 13. The first optical cable fixing base 12 and the second optical cable fixing base 13 are fixedly connected to the inside of the box body 1 and are respectively located on one side of the optical cable access seat 5 and the optical cable outlet seat 6. Moreover, a first optical cable fixing groove 14 and a pair of second optical cable fixing grooves 15 are respectively formed on the surfaces of the first optical cable fixing base 12 and the second optical cable fixing base 13. Both the first optical cable fixing groove 14 and the second optical cable fixing groove 15 are arc-shaped. First optical cable fixing plates 16 and second optical cable fixing plates 17 are respectively installed on the tops of the first optical cable fixing base 12 and the second optical cable fixing base 13. A plurality of first threaded holes 18 are formed on the surfaces of the first optical cable fixing plates 16 and the second optical cable fixing plates 17. First bolts 19 that are matched with the first threaded holes 18 are threadedly connected to the first threaded holes 18. A plurality of first threaded grooves 20 that are matched with the first bolts 19 are formed on the surfaces of the first optical cable fixing base 12 and the second optical cable fixing base 13. When the optical cable passes through the first optical cable fixing groove 14 and the second optical cable fixing groove 15, by tightening the first bolts 19 in each of the first threaded holes 18, the first optical cable fixing plates 16 and the second optical cable fixing plates 17 can be firmly fixed on the first optical cable fixing base 12 and the second optical cable fixing base 13 respectively. At this time, the optical cable can be fixed by the extrusion of the first optical cable fixing plates 16 and the second optical cable fixing plates 17, so as to fix the optical cable in the first optical cable fixing groove 14 and the second optical cable fixing groove 15, thereby effectively improving the stability after the optical cable is accessed and preventing its position from shifting;

[0033] The optical splitting assembly includes an optical splitting plate 21. Convex blocks 22 are fixedly connected to both sides of the optical splitting plate 21. The convex blocks 22 are respectively inserted into the corresponding card seats 11. A pair of optical splitting seats 23 are installed on the optical splitting plate 21. A plurality of optical splitting grooves 24 are formed on the tops of the optical splitting seats 23. Moreover, a plurality of clamping blocks 25 are fixedly connected to one side of the optical splitting seats 23. A plurality of clamping grooves 26 are formed on both sides of the top of the optical splitting plate 21. When the optical cable is accessed to this joint box, it can be divided into several wire cores. Each wire core is aligned with and passes through the corresponding optical splitting groove 24. Through the multiple optical splitting grooves 24 on the two optical splitting seats 23, the optical cable that was originally twisted into one strand can be split into several wire cores and then re-twisted into two strands, so as to divide the signal of one input optical cable into multiple optical signals for output, thereby realizing the optical splitting of the optical cable, making full use of the optical cable resources, and then greatly improving the overall utilization rate and efficiency of the network;

[0034] The steel wire fixing assembly includes two first steel wire fixing seats 27 and three second steel wire fixing seats 28. A first steel wire fixing plate 29 and a second steel wire fixing plate 30 are respectively installed on each of the first steel wire fixing seats 27 and the second steel wire fixing seats 28. Second threaded holes 31 are provided on the surfaces of the first steel wire fixing plate 29 and the second steel wire fixing plate 30. A second bolt 32 that mates with the second threaded holes 31 is threadedly connected to the second threaded holes 31. Second threaded grooves 33 that mate with the second bolts 32 are provided on the surfaces of the first steel wire fixing seats 27 and the second steel wire fixing seats 28. After the optical cable is inserted into the splice box, the steel wire strengthening member part of the optical cable can be separated and wound around each of the first steel wire fixing seats 27 and the second steel wire fixing seats 28 respectively. By tightening the second bolts 32 in each of the second threaded holes 31, the first steel wire fixing plates 29 and the second steel wire fixing plates 30 can be firmly fixed to the corresponding first steel wire fixing seats 27 and the second steel wire fixing seats 28 respectively. At this time, the steel wire strengthening member can be fixed by the extrusion of the first steel wire fixing plate 29 and the second steel wire fixing plate 30, so as to fix the steel wire strengthening member on the first steel wire fixing seats 27 and the second steel wire fixing seats 28. This can not only effectively improve the stability of the steel wire strengthening member to prevent its position from shifting and affecting the stability of the optical cable insertion, but also avoid the internal wiring of the splice box from being messy and causing the steel wire strengthening member to bend and wind around each other.

[0035] Among them, both the first dust-proof groove 7 and the second dust-proof groove 8 are rectangular. A first dust-proof block 34 and a second dust-proof block 35 are respectively inserted into the first dust-proof groove 7 and the second dust-proof groove 8. Both the first dust-proof block 34 and the second dust-proof block 35 are rectangular, and their lengths and thicknesses are respectively equal to the groove length and groove width of the first dust-proof groove 7 and the second dust-proof groove 8. The first dust-proof block 34 and the second dust-proof block 35 can be respectively aligned and inserted into the corresponding first dust-proof groove 7 and second dust-proof groove 8. When the splice box is not in use, the first dust-proof block 34 and the second dust-proof block 35 can play a role in dust-proofing to prevent dust from falling into the first dust-proof groove 7 and the second dust-proof groove 8 and adhering to the optical cable during subsequent wiring.

[0036] Among them, the center of the first optical cable fixing groove 14 is flush with the center of the optical cable access groove 9, and the centers of the second optical cable fixing grooves 15 are flush with the centers of the optical cable outlet grooves 10. When the optical cable is inserted into the splice box, it can be limited by the mutual cooperation between the first optical cable fixing groove 14 and the optical cable access groove 9. When the optical cable is led out of the splice box, it can be limited by the mutual cooperation between the second optical cable fixing groove 15 and the optical cable outlet groove 10, thereby further improving the stability of the optical cable after it is inserted into the splice box to prevent its position from shifting.

[0037] Among them, the first optical cable fixing groove 14 is located between two adjacent first steel wire fixing seats 27, and each second optical cable fixing groove 15 is located between two adjacent second steel wire fixing seats 28. Before splitting the light, the optical cable can pass through the gap between two adjacent first steel wire fixing seats 27. After splitting the light through the splitting component, it can pass through the gap between two adjacent second steel wire fixing seats 28, so that the wiring can be more reasonable, effectively avoiding the optical cable from being bent or wound due to collision between the optical cable and the first steel wire fixing seat 27 and the second steel wire fixing seat 28.

[0038] Among them, the number of the card slots 26 is the same as that of the card blocks 25, their widths are correspondingly equal, and the center of each card slot 26 corresponds to the center of each card block 25 one by one. Each card block 25 can be aligned and inserted into the corresponding card slot 26. By the mutual cooperation between the card block 25 and the card slot 26, the two splitting seats 23 can be plugged and fixed on the splitting board 21 to prevent the position of the splitting seat 23 from shifting and affecting the splitting of the optical cable.

[0039] The circuits, electronic components and chip modules involved in the present utility model are all prior arts, which can be completely realized by those skilled in the art without further elaboration. The content protected by the present utility model does not involve the improvement of software and methods either.

[0040] The standard parts used in the application documents can be purchased from the market. All the components in the application documents can be customized according to the descriptions in the specification and the drawings. The specific connection methods of each part all adopt the conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machines, parts and equipment all adopt the conventional models in the prior art. The electrical components mentioned in this article are all electrically connected to the external main controller and the 220V mains power supply, and the main controller can be a conventional known device such as the LED lamp body for control.

[0041] The working principle of the present utility model is:

[0042] When the utility model is in use, an optical cable can be connected to the joint box through an optical cable access slot 9 on an optical cable access base 5, and the optical cable can be led out through an optical cable lead-out slot 10 on an optical cable lead-out base 6. When the optical cable is connected to the joint box, it can be divided into several wire cores, and each wire core is aligned with and passes through a corresponding optical splitting slot 24. Through a plurality of optical splitting slots 24 on two optical splitting bases 23, the optical cable originally twisted into one strand can be split into several wire cores and then twisted into two strands again, so as to divide the signal of an input optical cable into multiple optical signals for output, thereby realizing the optical splitting of the optical cable, making full use of the optical cable resources, and then greatly improving the overall utilization rate and efficiency of the network. When the optical cable passes through a first optical cable fixing slot 14 and a second optical cable fixing slot 15, by tightening first bolts 19 in respective first threaded holes 18, a first optical cable fixing plate 16 and a second optical cable fixing plate 17 can be firmly fixed on a first optical cable fixing base 12 and a second optical cable fixing base 13 respectively. At this time, the optical cable can be fixed by the extrusion of the first optical cable fixing plate 16 and the second optical cable fixing plate 17, so as to fix the optical cable in the first optical cable fixing slot 14 and the second optical cable fixing slot 15, thereby effectively improving the stability after the optical cable is connected and preventing its position from shifting. And when the optical cable is connected to the joint box, the steel wire strengthening part of the optical cable can be separated and wound around respective first steel wire fixing bases 27 and second steel wire fixing bases 28 respectively. By tightening second bolts 32 in respective second threaded holes 31, respective first steel wire fixing plates 29 and second steel wire fixing plates 30 can be firmly fixed on the corresponding first steel wire fixing bases 27 and second steel wire fixing bases 28 respectively. At this time, the steel wire strengthening part can be fixed by the extrusion of the first steel wire fixing plate 29 and the second steel wire fixing plate 30, so as to fix the steel wire strengthening part on the first steel wire fixing bases 27 and second steel wire fixing bases 28. This can not only effectively improve the stability of the steel wire strengthening part and prevent its position from shifting and affecting the stability of the optical cable connection, but also avoid the internal wiring of the joint box from being messy, resulting in bending and winding of the steel wire strengthening part.

[0043] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments to better explain the principle and practical application of the utility model, so that those skilled in the technical field can understand and utilize the utility model well. The utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A mini-junction box with a wire fixing device, characterized in that It includes a box body, a box cover is installed on the box body, and a mounting seat is fixedly connected to the front end face of the box body. A plurality of mounting holes are provided on the surface of the mounting seat. Optical cable access seats and optical cable outlet seats are respectively arranged at both ends of the box body. A first dust-proof groove and a second dust-proof groove are respectively provided on the optical cable access seat and the optical cable outlet seat. An optical cable access groove and a pair of optical cable outlet grooves are respectively provided on the surfaces of the optical cable access seat and the optical cable outlet seat. Both the optical cable access groove and the optical cable outlet groove are arc-shaped. Optical cable fixing components are respectively arranged on one side of the optical cable access seat and the optical cable outlet seat. A pair of card seats are fixedly connected in the box body. A gap is formed between the card seat and the bottom of the inner cavity of the box body. A beam splitting component is installed between the card seats. Steel wire fixing components are respectively arranged on both sides of the beam splitting component; The optical cable fixing component includes a first optical cable fixing seat and a second optical cable fixing seat. The first optical cable fixing seat and the second optical cable fixing seat are fixedly connected in the box body and are respectively located on one side of the optical cable access seat and the optical cable outlet seat. A first optical cable fixing groove and a pair of second optical cable fixing grooves are respectively provided on the surfaces of the first optical cable fixing seat and the second optical cable fixing seat. Both the first optical cable fixing groove and the second optical cable fixing groove are arc-shaped. A first optical cable fixing plate and a second optical cable fixing plate are respectively installed on the tops of the first optical cable fixing seat and the second optical cable fixing seat. A plurality of first threaded holes are provided on the surfaces of the first optical cable fixing plate and the second optical cable fixing plate. A first bolt matching with the first threaded hole is in threaded connection in the first threaded hole. A plurality of first threaded grooves matching with the first bolt are provided on the surfaces of the first optical cable fixing seat and the second optical cable fixing seat; The beam splitting component includes a beam splitting plate. Protrusions are fixedly connected to both sides of the beam splitting plate. The protrusions are respectively inserted into the corresponding card seats. A pair of beam splitting seats are installed on the beam splitting plate. A plurality of beam splitting grooves are provided on the top of the beam splitting seat. A plurality of clamping blocks are fixedly connected to one side of the beam splitting seat. A plurality of clamping grooves are provided on both sides of the top of the beam splitting plate; The steel wire fixing component includes two first steel wire fixing seats and three second steel wire fixing seats. A first steel wire fixing plate and a second steel wire fixing plate are respectively installed on each of the first steel wire fixing seats and the second steel wire fixing seats. A second threaded hole is provided on the surface of each of the first steel wire fixing plate and the second steel wire fixing plate. A second bolt matching with the second threaded hole is in threaded connection in the second threaded hole. A second threaded groove matching with the second bolt is provided on the surface of each of the first steel wire fixing seat and the second steel wire fixing seat.

2. The mini-junction box with a steel wire fixing device according to claim 1, characterized in that, Both the first dust-proof groove and the second dust-proof groove are rectangular. A first dust-proof block and a second dust-proof block are respectively inserted into the first dust-proof groove and the second dust-proof groove. Both the first dust-proof block and the second dust-proof block are rectangular, and their lengths and thicknesses respectively correspond to the groove length and groove width of the first dust-proof groove and the second dust-proof groove.

3. A mini-junction box with a steel wire fixing device according to claim 1, characterized in that, The center of the first optical cable fixing groove is flush with the center of the optical cable access groove. The centers of the second optical cable fixing grooves are flush with the centers of the optical cable outlet grooves.

4. The mini-junction box with a steel wire fixing device according to claim 1, characterized in that, The first optical cable fixing groove is located between two adjacent first steel wire fixing seats, and each second optical cable fixing groove is located between two adjacent second steel wire fixing seats.

5. A mini-junction box with a wire fixing device according to claim 1, characterized in that, The number of the card slots and the card blocks is the same, their widths are correspondingly equal, and the center of each card slot corresponds to the center of each card block one by one.

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