FTTH (Fiber To The Home) high-protection optical cable distribution box easy to draw out and connect

Abstract

The invention relates to a fiber to the home (FTTH) easy-to-draw-out high-protection optical cable distribution box, which comprises a box body, a main cable area and a welding area are arranged in the box body, the welding area is provided with an upper layer and a lower layer, the box body is provided with first notches at the peripheries of the two sides of the main cable area along a second direction, and the box body is provided with second notches at the peripheries of the two sides of the welding area along the second direction; the cover body is hinged to one side of the box body, third notches are formed in the two sides, in the second direction, of the cover body, a first main cable hole is defined by the first notch and the third notch located on one side, and a second main cable hole is defined by the first notch and the third notch located on the other side; the turning plate is arranged on the upper layer, the turning plate is provided with a fiber coiling area and a welding light splitting area in the first direction, and the welding light splitting area is arranged close to the main cable area; the trunk optical cable can be directly communicated with the fiber distribution box, cutting, welding and bending are not needed, the size of the fiber distribution box is reduced, the distribution optical cable and the trunk optical cable are isolated through the turning plate, it is ensured that the distribution optical cable and the trunk optical cable do not interfere with each other, and the construction efficiency is remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of communication optical fibers, in particular to an FTTH easy-to-connect high-protection optical cable fiber distribution box. Background Art

[0002] Fiber to the Home (FTTH) is a transmission method for fiber optic communication. The FTTH easy-to-reach fiber splitter box is an interface device used to connect the trunk optical cable and the distribution optical cable outdoors, in corridors or indoors. It connects the central network optical fiber circuit board and the thick and easy-to-reach trunk optical cables indoors and outdoors to the optical fiber line, and splits the distribution optical cable from the optical fiber line to the optical module card of the optical fiber center backbone switch to achieve access to the optical fiber network; there is usually a fiber optic fusion tray inside the fiber splitter box, which is used to perform point-to-point fusion of the optical fibers of the trunk optical cable and the distribution optical cable, and transfer the optical splitter to form a stable connection. The existing fiber splitter box has poor protection performance and water leakage. In addition, the internal structure is redundant and the wiring method is unreasonable, resulting in low construction efficiency and large size of the fiber splitter box, which ultimately makes the fiber splitter box unsuitable for a variety of wiring scenarios. Summary of the invention

[0003] To this end, the technical problem to be solved by the present invention is to overcome the problems in the prior art such as large size of the fiber splitter box, redundant internal structure of the fiber splitter box, structural obstacles to operation, and impact on construction efficiency, and thus provide an FTTH easy-to-connect high-protection optical cable splitter box, which can realize main cable connection and fiber splitting in a narrow space box, and with the skylight characteristics of the easy-to-connect optical cable, there is no need for cutting, welding and bending, and the trunk optical cable and the distribution optical cable do not interfere with each other, thereby improving construction efficiency.

[0004] In order to solve the above technical problems, the present invention provides an FTTH easy-to-connect high-protection optical cable fiber distribution box, comprising:

[0005] A box body, wherein a main cable area and a fusion zone are provided inside the box body along a first direction, the fusion zone is provided with an upper layer and a lower layer, the box body is provided with first notches at both sides of the periphery of the main cable area along a second direction, and the first notches at both sides of the periphery are arranged opposite to each other, and the box body is provided with second notches at both sides of the periphery of the fusion zone along the second direction;

[0006] A cover body is hinged to one side of the box body, and third notches are provided on both sides of the cover body along the second direction, and the third notches on both sides are arranged opposite to each other, the first notch and the third notch on one side enclose a first main cable hole, and the first notch and the third notch on the other side enclose a second main cable hole, the trunk optical cable is introduced into the box body from the first main cable hole, and is led out of the box body from the second main cable hole, and the distribution optical cable is introduced into the box body through the second notch;

[0007] A flap, which is arranged in the fusion zone and located at the upper layer, and is used to realize fiber coil fusion and light splitting, wherein the flap is provided with a fiber coil area and a fusion light splitting area along the first direction, and the fusion light splitting area is arranged close to the main cable area;

[0008] An adapter is arranged on the lower layer, and the adapter is connected to the distribution optical cable.

[0009] In one embodiment of the present invention, the cover body is provided with an observation hole, a cover cap and a transparent cover plate, the observation hole passes through the cover body, the transparent cover plate covers the observation port at one end located inside the box body, and the cover cap covers the observation hole at one end located outside the box body.

[0010] In one embodiment of the present invention, it further comprises a flap support for supporting the flap, the flap support is arranged at the junction of the main cable area and the fusion area, and the flap support is rotatably connected to the flap.

[0011] In one embodiment of the present invention, the box body is provided with a pole holding hole and a wall hanging hole, the pole holding hole is arranged on the back of the box body, and the wall hanging hole is arranged on the side of the box body.

[0012] In one embodiment of the present invention, it further comprises a first rubber member and a second rubber member, wherein the first rubber member is respectively interference fit with the first main cable hole and the second main cable hole, and the trunk optical cable passes through the first rubber member; the second rubber member is interference fit with the second recess and the cover body, and the distribution optical cable passes through the second rubber member.

[0013] In one embodiment of the present invention, both the first rubber member and the second rubber member are provided with bosses along the second direction and toward the outside of the box body, and both the trunk optical cable and the distribution optical cable pass through the bosses.

[0014] In one embodiment of the present invention, the box body is provided with a glue injection groove extending along its periphery, the cover body is provided with a protrusion extending along its periphery, the protrusion is contour matched with the glue injection groove, and a sealing member is provided in the glue injection groove.

[0015] In one embodiment of the present invention, the bottom surface of the box is also provided with an adapter fixing seat, a main cable support, a distribution optical cable tying seat, and a main cable tying seat, the main cable support and the main cable tying seat are arranged in the main cable area, and the distribution optical cable tying seat is arranged in the welding area, wherein the main cable tying seat is arranged at one end of the first recess.

[0016] In one embodiment of the present invention, a snap assembly is further included for snap-connecting the cover body and the box body. The snap assembly is arranged on a side relative to the hinge of the box body and the cover body. The snap assembly includes a snap rod and a snap seat rotatably connected to the snap rod.

[0017] In one embodiment of the present invention, first wrapping sheets are provided around the periphery of the flap, and avoidance openings are provided between the first wrapping sheets.

[0018] In one embodiment of the present invention, the flap is provided with a fusion splicing seat and a light splitting seat in the fusion splicing and light splitting area and the fiber coiling area, respectively.

[0019] The above technical solution of the present invention has the following advantages compared with the prior art:

[0020] The FTTH easy-to-connect high-protection optical cable fiber distribution box of the present invention has a first main cable hole and a second main cable hole arranged opposite to each other on both sides of the main cable area. The trunk optical cable can pass through the first main cable hole and the second main cable hole without bending to directly pass through the fiber distribution box, which can not only realize the access and welding function of traditional ordinary optical cables, but also be suitable for trunk optical cable cable connection and fiber distribution in a small space without cutting the entire optical cable, and effectively reduce the volume of the fiber distribution box; the welding area is divided into an upper and lower layer, the flap used for welding and splitting is located on the upper layer, and the adapter is located on the lower layer, so that the trunk optical cable, optical fiber, distribution optical cable, etc. are coiled on their respective routes without interfering with each other, thereby significantly improving the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below according to specific embodiments of the present invention in conjunction with the accompanying drawings, wherein

[0022] Figure 1 An exploded view of an FTTH easy-to-connect high-protection optical cable distribution box in a preferred embodiment of the present invention;

[0023] Figure 2 for Figure 1 The top view of the FTTH easy-to-connect high-protection optical cable distribution box without a flap is shown;

[0024] Figure 3 for Figure 2 The side view of the FTTH easy-to-connect high-protection optical cable distribution box shown;

[0025] Figure 4 for Figure 1 A schematic structural diagram of a top view of the flap shown;

[0026] Figure 5 for Figure 2 A schematic diagram of the structure of the buckle assembly shown;

[0027] Figure 6 for Figure 1 A schematic structural diagram of the first rubber member shown;

[0028] Figure 7 for Figure 1 A schematic structural diagram of the second rubber member shown;

[0029] Figure 8 for Figure 1 A partial enlarged view of point A is shown.

[0030] Description of the reference numerals in the drawings: 1. Box; 11. Accommodating space; 12. Hole for holding pole; 13. Glue injection groove; 14. Second notch; 15. First notch; 16. Wall hanging hole; 1a. Main cable area; 1b. Welding area; 2. Cover; 21. Transparent cover plate; 22. Third notch; 23. Cover cap; 24. Protrusion; 3. Flap; 31. Welding card seat; 32. Avoidance; 33. First winding plate; 331. First limit convex block; 332. Oblique part; 34. Spectral card seat; 35. Fiber coiling area; 36. Welding spectroscopic area Domain; 37, second winding sheet; 371, second limiting protrusion; 38, winding gap; 39, avoidance gap; 5, buckle assembly; 51, buckle rod; 52, buckle seat; 6, main cable support; 61, main cable wire seat; 62, flap support; 63, adapter fixing seat; 64, distribution optical cable wire seat; 65, adapter installation groove; 7, second rubber part; 71, snap-fit ​​groove; 72, boss; 8, first rubber part; 81, boss; 82, annular snap-fit ​​groove; 9, sealing member; X, first direction; Y, second direction. DETAILED DESCRIPTION

[0031] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0032] Reference Figure 1 , 2 As shown in FIG. 4 , the present invention discloses an FTTH easy-to-connect high-protection optical cable fiber distribution box, comprising:

[0033] The box body 1 is provided with a storage space 11 inside, and a main cable area 1a and a fusion area 1b (shown by a dotted frame) are provided in the storage space 11 along a first direction X. The main cable area 1a is used to store the trunk optical cable, and the fusion area 1b is used to complete the fiber coil fusion. The two are arranged separately to avoid the entanglement of the optical cable; wherein the fusion area 1b is spatially divided into an upper layer and a lower layer, and the box body 1 is provided with a semicircular first notch 15 at both sides of the main cable area 1a along a second direction Y, and the two first notches 15 at the two sides are arranged opposite to each other; the box body 1 is provided with a square second notch 14 at both sides of the fusion area 1b along the second direction Y, and the distribution optical cable can be introduced into the box body 1 through the second notch 14 from both sides;

[0034] The cover body 2 is hinged to one side of the box body 1. The cover body 2 is provided with third recesses 22 on both sides along the second direction Y, and the third recesses 22 on both sides are arranged opposite to each other. When the cover body 2 is closed with the box body 1, the first recess 15 and the third recess 22 on one side enclose a circular first main cable hole, and the first recess 15 and the third recess 22 on the other side enclose a circular second main cable hole, and the first main cable hole and the second main cable hole are opposite to each other. The trunk optical cable is introduced into the box body 1 from the first main cable hole, passes through the main cable area 1a in a straight line, and then is led out of the box body 1 from the second main cable hole. The trunk optical cable can also be introduced into the box body 1 from the second main cable hole; the distribution optical cable is introduced into the lower layer of the box body 1 through the second recess 14;

[0035] The flap 3 is flippable and arranged in the fusion zone 1b and located in the upper layer, and is used to realize fiber coiling and light splitting. The flap 3 is provided with a fiber coiling area 35 and a fusion light splitting area 36 (shown in a dotted frame) along the first direction X. The fiber coiling area 35 is used to coil the spliced ​​optical cable, and the fusion light splitting area 36 is used to complete the fusion of the spliced ​​optical cable; and the fusion light splitting area 36 is arranged close to the main cable area 1a, so that the spliced ​​optical cable can directly enter the fusion light splitting area 36 of the flap 3 for fusion, thereby reducing the length of the spliced ​​optical cable and facilitating the protection of the remaining optical cable;

[0036] The adapter is fixedly arranged on the lower layer and is located directly below the flap 3. The flap 3 isolates the adapter from the fusion splitting area 36 so that the optical cables do not interfere with each other. The adapter is used to connect to the connector of the distribution optical cable and the pigtail.

[0037] Reference Figure 1 and 3As shown, in order to facilitate observation of the situation inside the box body 1, the cover body 2 is provided with an observation hole, a cap 23 and a transparent cover plate 21. The observation hole passes through the cover body 2, and the observation hole is arranged opposite to the welding spectroscopic area 36. The transparent cover plate 21 covers the observation port at one end located inside the box body, and the cap 23 covers / plugs the observation hole at one end located outside the box body. When checking the situation of the spliced ​​optical cable, the cap 23 on the cover body 2 can be pulled out, and the splicing situation inside the box body 1 can be checked through the transparent cover plate 21, and then the cap 23 can be covered to prevent dirt or other situations from blocking and scratching the transparent cover plate 21, thereby affecting the viewing effect.

[0038] Reference Figure 2 As shown, it also includes two flap supports 62 for supporting the flap 3, the two flap supports 62 are distributed along the second direction Y and are arranged at the junction of the main cable area 1a and the welding area 1b, and the flap supports 62 are rotatably connected to the flap 3.

[0039] Reference Figure 1 and 3 As shown, the box body 1 is provided with a pole hole 12 and a wall hole 16, which can provide three installation methods suitable for different installation environments. The pole hole 12 is arranged on the back of the box body 1, and is fixed by a steel belt clamp passing through the pole hole to realize the pole installation of the box body 1; four wall holes 16 are arranged in a rectangular array around the box body 1, and the wall holes 16 increase the overhead installation function of the fiber distribution box. For example, the box body 1 can be installed overhead by hooking the wall holes 16 with an overhead hook, thereby improving the efficiency of box installation and disassembly.

[0040] Reference Figure 1 As shown, in order to improve the sealing performance of the box body 1 and fix the trunk optical cable, it also includes a first rubber member 8 and a second rubber member 7. The two first rubber members 8 are respectively arranged in the two first recesses 15. When the cover body 2 tightly covers the box body 1, the two first rubber members 8 are respectively interference fit with the first main cable hole and the second main cable hole. During construction, the trunk optical cable passes through the first rubber member 8; the two second rubber members 7 are both interference fit with the second recess 14 and the cover body 2, and the distribution optical cable passes through the second rubber member 7.

[0041] Further, as referenced Figure 6 and 7 As shown, the first rubber member 8 is coaxially provided with an annular snap-fit ​​groove 82, which matches the edge of the box body 1 and the edge of the cover body 2. The edge of the box body 1 and the edge of the cover body 2 can be inserted into the annular snap-fit ​​groove 82 to improve the stability of the first rubber member 8. Similarly, the second rubber member 7 is also provided with a snap-fit ​​groove 71, and the edge of the box body 1 is inserted into the snap-fit ​​groove 71 to improve the stability of the second rubber member 7.

[0042] Reference Figure 6 and 7 As shown, the first rubber member 8 and the second rubber member 7 are respectively provided with bosses 81 / 72 along the second direction Y and toward the outside of the box body 1, and the trunk optical cable and the distribution optical cable pass through the bosses 81 / 72 respectively, and the bosses can further support and fix the trunk optical cable and the distribution optical cable, wherein each second rubber member 7 is provided with four bosses 72 for eight distribution optical cables to be connected to the box body 1 at the same time.

[0043] Reference Figure 1 As shown, in order to further improve the protection level of the box body 1, the box body 1 is provided with a glue injection groove 13 extending along its periphery, and the cover body 2 is provided with a protrusion 24 extending along its periphery, and the protrusion 24 is matched with the glue injection groove 13 in a contour. When the cover body 2 and the box body 1 are tightly closed, the protrusion 24 is inserted into the glue injection groove 13, and a sealing member 9 made of colloid is provided in the glue injection groove 13 for sealing the gap between the cover body 2 and the box body 1.

[0044] Reference Figure 2 As shown, the bottom surface of the box 1 is also provided with an adapter fixing seat 63, a main cable support 6, a distribution optical cable tying seat 64, and a main cable tying seat 61. The main cable support 6 and the main cable tying seat 61 are arranged in the main cable area 1a, and the main cable support 6, the main cable tying seat 61, the first main cable hole and the second main cable hole are all located on the same straight line. The main cable support 6 is used to support the trunk optical cable, the main cable tying seat 61 is used to fix the trunk optical cable, and the distribution optical cable tying seat 64 is arranged in the fusion area 1b for fixing the distribution optical cable, wherein the two main cable tying seats 61 are respectively arranged at one end of the two first recesses 15, for fixing the part of the trunk optical cable located in the box 1.

[0045] Furthermore, the adapter fixing seat 63 is provided with two adapter mounting slots 65 , which facilitate the quick insertion of the adapter into the adapter fixing seat 63 .

[0046] Reference Figure 2 and 5 As shown, it also includes a snap-on assembly 5 for snap-connecting the cover body 2 and the box body 1. The snap-on assembly 5 is arranged on a side that is hinged relative to the box body 1 and the cover body 2. The snap-on assembly 5 includes a snap-on rod 51 and a snap-on seat 52. One end of the snap-on rod 51 is rotatably connected to the box body 1, and the other end is rotatably connected to the snap-on seat 52. When the cover body 2 and the box body 1 are tightly closed, the snap-on seat 52 is snapped on the cover body 2.

[0047] Reference Figure 8As shown, in order to coil the optical cable, a plurality of first winding sheets 33 are provided around the flap 3, and avoidance openings are provided between adjacent first winding sheets 33. The first winding sheets 33 include an arc structure and a straight plate structure. A plurality of second winding sheets 37 are also provided on the surface of the flap 3, and avoidance openings are also provided between the plurality of second winding sheets 37. The avoidance openings are for the convenience of flexible selection of pigtails during construction. The second winding sheets 37 also include an arc structure and a straight plate structure. The second winding sheets 37 are spaced apart from the first winding sheets 33 so that a winding gap 38 is formed therebetween for accommodating the optical cable. The second winding sheets 37 and the first winding sheets 33 are also convexly provided with second limiting openings above the winding gap 38, respectively. The positioning protrusion 371 and the first limiting protrusion 331, the second limiting protrusion 371 and the first limiting protrusion 331 are arranged opposite to each other, and are used to limit the optical cable to prevent the optical cable from turning out of the winding gap 38, and an avoidance gap 39 is provided between the second limiting protrusion 371 and the first limiting protrusion 331 to facilitate the optical cable to enter the winding gap 38, the second limiting protrusion 371 and the first limiting protrusion 331 are both provided with an inclined portion 332 on the side adjacent to the avoidance gap 39, and an avoidance gap 39 is formed between the two inclined portions 332. When the optical cable is wound in the winding gap 38, the winding posture of the optical cable is misaligned with the avoidance gap 39 to prevent the optical cable from turning out of the avoidance gap 39.

[0048] Reference Figure 4 As shown, the flap 3 is provided with a welding seat 31 and a light splitting seat 34 in the welding and light splitting area 36 and the fiber coiling area 35 respectively.

[0049] The working principle of the FTTH easy-to-connect high-protection optical cable distribution box of the present invention is:

[0050] During construction operation, after fixing the box body 1 through the pole hole 12 or the wall hole 16, the trunk optical cable is introduced into the box body 1 through the first rubber member 8 located in the first main cable hole, and is led out of the box body 1 through the first rubber member 8 located in the second main cable hole, and then fixed by the main cable tie seat 61. After the trunk optical cable located in the main cable area is peeled off in the form of a skylight, the optical cable is introduced into the fusion splitting area 36 of the flap 3 for fusion with the pigtail equipped with the accessory, and the connector at the other end of the pigtail is inserted into the adapter equipped with the accessory. When the service is activated, the distribution optical cable is directly inserted into the adapter located at the lower layer through the second rubber member 7 to realize rapid service activation. Then, the box body 1 and the box body 2 are clamped and sealed by the buckle assembly 5. If you need to check the situation of the optical cable being connected in the box body 1, you can pull out the cap 23 on the box cover, and observe the connection situation inside the box body 1 through the transparent cover plate 21, and then cover the cap 23.

[0051] Obviously, the above embodiments are merely examples for clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the protection scope of the invention.

Claims

1. A FTTH easy-to-connect high-protection optical cable distribution box, characterized in that: include, A box body, wherein a main cable area and a fusion zone are provided inside the box body along a first direction, the fusion zone is provided with an upper layer and a lower layer, the box body is provided with first notches at both sides of the periphery of the main cable area along a second direction, and the first notches at both sides of the periphery are arranged opposite to each other, and the box body is provided with second notches at both sides of the periphery of the fusion zone along the second direction; A cover body is hinged to one side of the box body, and third notches are provided on both sides of the cover body along the second direction, and the third notches on both sides are arranged opposite to each other, the first notch and the third notch on one side enclose a first main cable hole, and the first notch and the third notch on the other side enclose a second main cable hole, the trunk optical cable is introduced into the box body from the first main cable hole, and is led out of the box body from the second main cable hole, and the distribution optical cable is introduced into the box body through the second notch; A flap, which is arranged in the fusion zone and located at the upper layer, and is used to realize fiber coil fusion and light splitting, wherein the flap is provided with a fiber coil area and a fusion light splitting area along the first direction, and the fusion light splitting area is arranged close to the main cable area; An adapter is arranged on the lower layer, and the adapter is connected to the distribution optical cable.

2. The FTTH easy-to-connect high-protection optical cable distribution box according to claim 1 is characterized in that: The cover body is provided with an observation hole, a cover cap and a transparent cover plate, the observation hole passes through the cover body, the transparent cover plate covers the observation port at one end located inside the box body, and the cover cap covers the observation hole at one end located outside the box body.

3. The FTTH easy-to-connect high-protection optical cable distribution box according to claim 1 is characterized in that: It also includes a flap support for supporting the flap, the flap support is arranged at the junction of the main cable area and the fusion area, and the flap support is rotatably connected to the flap.

4. The FTTH easy-to-connect high-protection optical cable distribution box according to claim 1 is characterized in that: The box body is provided with a pole holding hole and a wall hanging hole, wherein the pole holding hole is arranged at the back of the box body, and the wall hanging hole is arranged at the side of the box body.

5. The FTTH easy-to-connect high-protection optical cable distribution box according to claim 1, characterized in that: It also includes a first rubber member and a second rubber member, wherein the first rubber member is respectively interference-fitted with the first main cable hole and the second main cable hole, and the trunk optical cable passes through the first rubber member; the second rubber member is interference-fitted with the second recess and the cover body, and the distribution optical cable passes through the second rubber member.

6. The FTTH easy-to-connect high-protection optical cable distribution box according to claim 5, characterized in that: The first rubber member and the second rubber member are both provided with bosses along the second direction and toward the outside of the box body, and the trunk optical cable and the distribution optical cable both pass through the bosses.

7. The FTTH easy-to-connect high-protection optical cable distribution box according to claim 1, characterized in that: The box body is provided with a glue injection groove extending along its periphery, and the cover body is provided with a protrusion extending along its periphery. The protrusion is matched with the glue injection groove in a contour, and a sealing member is provided in the glue injection groove.

8. The FTTH easy-to-connect high-protection optical cable distribution box according to claim 1, characterized in that: The bottom surface of the box is also provided with an adapter fixing seat, a main cable support, a distribution optical cable tying seat, and a main cable tying seat. The main cable support and the main cable tying seat are arranged in the main cable area, and the distribution optical cable tying seat is arranged in the welding area, wherein the main cable tying seat is arranged at one end of the first recess.

9. The FTTH easy-to-connect high-protection optical cable distribution box according to claim 1, characterized in that: It also includes a buckle assembly for buckling the cover body and the box body, the buckle assembly is arranged on a side relative to the hinge of the box body and the cover body, and the buckle assembly includes a buckle rod and a buckle seat rotatably connected to the buckle rod.

10. The FTTH easy-to-connect high-protection optical cable distribution box according to claim 1, characterized in that: The periphery of the flap is provided with first winding sheets, and avoidance openings are provided between the first winding sheets.

Images