Optical cable junction box

Abstract

The present invention relates to the technical field of joint boxes, and discloses an optical cable joint box, including a main box body, the main box body including an upper box body and a lower box body arranged at the lower end of the upper box body, both ends of the upper box body and the lower box body are provided with corresponding wire grooves, a connection bracket is arranged inside the lower box body, and a plurality of optical fiber receiving trays are arranged at the upper end of the connection bracket, and the plurality of optical fiber receiving trays are divided into two groups. The optical cable joint box is provided with a connection bracket, and the optical fiber bundle tube can be bundled with a cable tie and coiled on a base, and the L-shaped limit block can effectively limit the coiled optical fiber bundle tube to avoid the optical fiber bundle tube from being messy, and two groups of optical fiber receiving trays are provided, and the optical fiber receiving trays are installed in an inverted and superimposed manner, so that the remaining length of the fiber core, the coiling space and the connection operation space can be effectively guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of joint boxes, in particular to an optical cable joint box. Background Art

[0002] The optical cable splice box is a splicing protection device that provides optical, sealing and mechanical strength continuity between adjacent optical cables.

[0003] Since the existing three-input and three-output optical cable junction box has a single structure, it is impossible to effectively guarantee the stability of the optical cable and its internal reinforcement core, and make the box body evenly stressed; secondly, the optical fiber reel plate is generally directly installed in the existing box body, resulting in the lack of a storage and limiting structure in the box body for storing and fixing the optical fiber bundle tube, the optical fiber bundle tube is easily messy, and the remaining length of the fiber core in the existing optical fiber reel plate, the reeling space and the connection operation space cannot be effectively guaranteed; the existing junction box cannot solve the pain points of construction and maintenance of large-core optical cables in existing high-speed railway ducts. Therefore, it is necessary to provide an optical cable junction box to solve the above problems. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an optical cable splice box to solve the problems mentioned in the above background.

[0005] The present invention provides the following technical solution: an optical cable splice box, comprising a main box body, the main box body comprising an upper box body and a lower box body arranged at the lower end of the upper box body, both ends of the upper box body and the lower box body are provided with corresponding wire grooves, a connection bracket is arranged inside the lower box body, a plurality of optical fiber receiving trays are arranged at the upper end of the connection bracket, and the plurality of optical fiber receiving trays are divided into two groups;

[0006] The connecting bracket includes a base and a strip-shaped boss, wherein the base is arranged inside the lower box body, and the strip-shaped boss is arranged in the middle of the upper end surface of the base.

[0007] Preferably, the connecting bracket also includes an L-shaped limit block, an inclined platform and a fixed seat, and the L-shaped limit block is arranged on the upper end surface of the base and is located on both sides of the strip-shaped boss.

[0008] Preferably, two fixing seats are provided, and the two fixing seats are respectively provided at two ends of the base, a wire fixing groove is provided on the base, and a No. 1 stainless steel optical cable fixing card cooperating with the wire fixing groove is provided on the upper end surface of the base.

[0009] Preferably, the ramp is arranged on the base and is located between the strip boss and the fixing seat, and galvanized slotted bolts are installed on both ends of the strip boss and the upper end surface of the ramp through mounting holes, and galvanized nuts are threadedly connected to the galvanized slotted bolts.

[0010] Preferably, the two groups of optical fiber receiving trays are respectively arranged at the two ends of the upper surface of the strip boss, and threaded holes are opened at both ends of the upper surface of the strip boss. The optical fiber receiving tray at the bottom of each group is fixed to the upper surface of the strip boss by fixing screws.

[0011] Preferably, a fiber protection tube fixing block is bonded to the inner center of the fiber optic receiving tray, cable inlets are provided at four corners of the fiber optic receiving tray, and a limiting convex plate is provided at the upper end of the inner wall of the fiber optic receiving tray.

[0012] Preferably, connecting hooks are provided at the upper parts of both ends of the side wall of one side of the optical fiber receiving tray, and convex shaft blocks are provided at the lower parts of both ends of the side wall of the optical fiber receiving tray, and the upper and lower optical fiber receiving trays are rotatably connected with the convex shaft blocks through the connecting hooks.

[0013] Preferably, a buckle is provided on the side of the optical fiber receiving tray away from the connecting hook and the convex shaft block, the optical fiber receiving tray is installed in an inverted stacking manner, and an upper cover is provided on the uppermost optical fiber receiving tray of each group.

[0014] Preferably, a plurality of corresponding bolt holes are provided on the edges of the upper box body and the lower box body, fixing bolts are threadedly connected to the bolt holes, and the upper box body and the lower box body are connected by the fixing bolts.

[0015] Preferably, No. 2 stainless steel optical cable fixing cards are provided on the upper end surfaces of both ends of the lower box body and located at the wire grooves.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The optical cable junction box is provided with a connecting bracket, and the optical fiber bundle tube can be bundled with a cable tie and coiled on the base, and the L-shaped limit block provided can effectively limit the coiled optical fiber bundle tube to avoid the disorder of the optical fiber bundle tube. The front ends of the optical cable reinforcement cores on both sides of the fixing seat are respectively passed through the notches on the galvanized grooved bolts installed on both sides of the strip boss and the galvanized nuts are tightened, which can effectively ensure the position of the optical cable reinforcement cores on both sides of the fixing seat. Then, the front end of the optical cable reinforcement core in the middle of the fixing seat is passed through the notches on the galvanized grooved bolts installed on the inclined platform and the galvanized nuts are tightened, which can effectively ensure the position of the optical cable reinforcement core in the middle of the fixing seat. The fixing position of the reinforcement core adopts a combination of the two sides and the middle, so that the fixation of the reinforcement core is more stable and the main box body is evenly stressed.

[0018] 2. The optical cable joint box has two sets of optical fiber receiving trays, and the optical fiber receiving trays are installed in an inverted stacking manner, so that the remaining length of the fiber core, the tray space and the connection operation space can be effectively guaranteed.

[0019] 3. The optical cable junction box clamps the optical cable entering the lower box body into the wire fixing groove, and then tightens the fixing screws on the No. 1 stainless steel optical cable fixing card, so that the No. 1 stainless steel optical cable fixing card clamps the optical cable to ensure the stability of the optical cable. After installing the upper box body, the No. 2 stainless steel optical cable fixing card is driven to move down and compress the optical cable by rotating the fixing screws, and then it can cooperate with the No. 1 stainless steel optical cable fixing card to achieve double compression of the optical cable, effectively ensuring the stability between the optical cable and the main box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the optical cable junction box of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the optical cable joint box of the present invention when the upper box body is opened and in a state of fixing the optical cable and the reinforcing core;

[0022] Figure 3 For the present invention Figure 2 Schematic diagram of the local structure;

[0023] Figure 4 It is a schematic diagram of the assembly structure of the connection bracket and the optical fiber receiving tray of the present invention;

[0024] Figure 5 It is a structural schematic diagram of the connecting bracket of the present invention;

[0025] Figure 6 It is a schematic structural diagram of the connection bracket of the present invention when it is in a state of fixing the optical cable and the reinforcing core;

[0026] Figure 7 It is a schematic diagram of the partial structure of the connecting bracket of the present invention;

[0027] Figure 8 It is a schematic diagram of the installation structure of the optical fiber protection tube fixing block and the optical fiber receiving tray of the present invention;

[0028] Fig. 9 It is a schematic diagram of the connection structure of the upper and lower optical fiber receiving trays of the present invention;

[0029] Fig.10 For the present invention Figure 4 A magnified schematic diagram of the structure at center A;

[0030] Fig.11 For the present invention Fig. 9 A magnified schematic diagram of the structure at B in the figure.

[0031] In the figure: 1. Main box body; 101. Upper box body; 102. Lower box body; 103. Bolt hole; 104. Wire trough; 2. No. 2 stainless steel optical cable fixing card; 3. Connecting bracket; 301. Base; 302. Strip boss; 303. L-shaped limit block; 304. Inclined platform; 305. Fixed seat; 306. No. 1 stainless steel optical cable fixing card; 307. Galvanized slotted bolt; 308. Galvanized nut; 309. Threaded hole; 4. Fiber optic protection tube fixing block; 5. Fiber optic receiving tray; 501. Cable inlet; 502. Limiting convex plate; 503. Connecting hook; 504. Protruding shaft block; 505. Buckle; 6. Upper cover. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-11 , an optical cable splice box, comprising a main box body 1, the main box body 1 comprising an upper box body 101 and a lower box body 102 arranged at the lower end of the upper box body 101, both ends of the upper box body 101 and the lower box body 102 are provided with corresponding wire grooves 104, a connecting bracket 3 is arranged inside the lower box body 102, a plurality of optical fiber receiving trays 5 are arranged at the upper end of the connecting bracket 3, and the plurality of optical fiber receiving trays 5 are divided into two groups;

[0034] The connecting bracket 3 includes a base 301 and a strip-shaped boss 302 . The base 301 is disposed inside the lower box body 102 , and the strip-shaped boss 302 is disposed at the middle of the upper end surface of the base 301 .

[0035] Among them, the connecting bracket 3 also includes an L-shaped limit block 303, an inclined platform 304 and a fixed seat 305. The L-shaped limit block 303 is arranged on the upper end surface of the base 301 and is located on both sides of the strip boss 302. There are two fixed seats 305, and the two fixed seats 305 are respectively arranged at both ends of the base 301. A wire fixing groove is opened on the base 301, and a No. 1 stainless steel cable fixing card 306 that cooperates with the wire fixing groove is arranged on the upper end surface of the base 301. The optical cable entering the lower box body 102 is inserted into the wire fixing groove, and then the fixing screws on the No. 1 stainless steel cable fixing card 306 are tightened, so that the No. 1 stainless steel cable fixing card 306 clamps the optical cable to ensure the stability of the optical cable. By providing the base 301, the optical fiber bundle tube can be tied with a cable tie and coiled on the base 301, and the L-shaped limit block 303 provided can effectively limit the coiled optical fiber bundle tube to avoid clutter of the optical fiber bundle tube.

[0036] Among them; the inclined platform 304 is arranged on the base 301 and is located between the strip boss 302 and the fixed seat 305. Both ends of the strip boss 302 and the upper end surface of the inclined platform 304 are installed with galvanized slotted bolts 307 through mounting holes, and the galvanized slotted bolts 307 are threadedly connected with galvanized nuts 308. The front ends of the optical cable reinforcement cores on both sides of the fixed seat 305 are respectively passed through the notches on the galvanized slotted bolts 307 installed on both sides of the strip boss 302 and the galvanized nuts 308 are tightened, which can effectively ensure the position of the optical cable reinforcement cores on both sides of the fixed seat 305. Then, the front end of the middle optical cable reinforcement core of the fixed seat 305 is passed through the notches on the galvanized slotted bolts 307 installed on the inclined platform 304 and the galvanized nuts 308 are tightened, which can effectively ensure the position of the middle optical cable reinforcement core of the fixed seat 305. The fixing position of the reinforcement core adopts a combination of two sides and the middle, so that the fixation of the reinforcement core is more stable and the main box body 1 is evenly stressed.

[0037] Among them; two groups of optical fiber receiving trays 5 are respectively arranged at the two ends of the upper surface of the strip boss 302, and threaded holes 309 are opened at both ends of the upper surface of the strip boss 302. The optical fiber receiving tray 5 at the bottom of each group is fixed to the upper surface of the strip boss 302 by fixing screws, and an optical fiber protection tube fixing block 4 is bonded to the inner center of the optical fiber receiving tray 5. The four corners of the optical fiber receiving tray 5 are opened with line inlets 501. By installing the threaded holes 309 on the strip boss 302, it is convenient to install and fix the optical fiber receiving tray 5 at the bottom of each group. A limiting convex plate 502 is set on the upper end of the inner wall of the optical fiber receiving tray 5. By setting the limiting convex plate 502, the optical fiber retained in the tray can be effectively limited.

[0038] Among them, connecting hooks 503 are provided on the upper parts of both ends of the side wall of one side of the optical fiber receiving tray 5, and convex shaft blocks 504 are provided on the lower parts of both ends of the side wall of the optical fiber receiving tray 5. The upper and lower optical fiber receiving trays 5 are rotatably connected through the connecting hooks 503 and the convex shaft blocks 504. A buckle 505 is provided on the side of the optical fiber receiving tray 5 away from the connecting hooks 503 and the convex shaft blocks 504. The optical fiber receiving trays 5 are installed in an inverted stacking manner. An upper cover 6 is provided on the uppermost optical fiber receiving tray 5 of each group. By setting the connecting hooks 503 and the convex shaft blocks 504, the upper and lower optical fiber receiving trays 5 are rotatably connected. After the optical fiber receiving trays 5 are stacked, they can be rotated to open. Two groups of optical fiber receiving trays 5 are provided, and the optical fiber receiving trays 5 are installed in an inverted stacking manner, so that the remaining length of the fiber core, the disk space and the connection operation space can be effectively guaranteed.

[0039] Among them, a number of corresponding bolt holes 103 are provided on the edges of the upper box body 101 and the lower box body 102, and fixing bolts are connected to the inner threads of the bolt holes 103. The upper box body 101 and the lower box body 102 are connected by fixing bolts. The upper end surfaces of the two ends of the lower box body 102 and located at the wire grooves 104 are provided with No. 2 stainless steel cable fixing cards 2. By providing corresponding bolt holes 103 on the upper box body 101 and the lower box body 102, it is convenient to install the fixing bolts, so that the upper box body 101 and the lower box body 102 are effectively fixed. After installing the upper box body 101, the No. 2 stainless steel cable fixing card 2 is driven to move down and compress the optical cable by rotating the fixing screws, and then it can cooperate with the No. 1 stainless steel cable fixing card 306 to achieve double compression of the optical cable, effectively ensuring the stability between the optical cable and the main box body 1.

[0040] The working principle is that the optical cable entering the lower box body 102 is clamped into the wire fixing groove, and then the fixing screws on the No. 1 stainless steel optical cable fixing clamp 306 are tightened, so that the No. 1 stainless steel optical cable fixing clamp 306 clamps the optical cable to ensure the stability of the optical cable, and the front ends of the optical cable reinforcement cores on both sides of the fixing seat 305 are respectively passed through the notches on the galvanized slotted bolts 307 installed on both sides of the strip boss 302 and the galvanized nuts 308 are tightened, which can effectively ensure the position of the optical cable reinforcement cores on both sides of the fixing seat 305 is fixed, and then the front end of the middle optical cable reinforcement core of the fixing seat 305 is passed through the notches on the galvanized slotted bolts 307 installed on the inclined platform 304 and the galvanized nuts 308 are tightened, which can effectively ensure the position of the middle optical cable reinforcement core of the fixing seat 305 is fixed, and the fixing position of the reinforcement core adopts a combination of both sides and the middle, so that the fixation of the reinforcement core is more stable and the main box body 1 is evenly stressed.

[0041] Furthermore, the optical fiber bundle tube can be bundled with a cable tie and coiled on the base 301, and the L-shaped limit block 303 provided can effectively limit the coiled optical fiber bundle tube to avoid clutter of the optical fiber bundle tube, and by installing a threaded hole 309 on the strip boss 302, it is convenient to install and fix the optical fiber receiving tray 5 at the bottom of each group. Two groups of optical fiber receiving trays 5 are provided, and the optical fiber receiving trays 5 are installed in an inverted and stacked manner, so that the remaining length of the fiber core, the coiling space and the connection operation space can be effectively guaranteed.

[0042] Furthermore, the upper box body 101 is covered, and corresponding bolt holes 103 are opened on the upper box body 101 and the lower box body 102 to facilitate the installation of fixing bolts, so that the upper box body 101 and the lower box body 102 are effectively fixed. After the upper box body 101 is installed, the No. 2 stainless steel optical cable fixing card 2 is driven downward to compress the optical cable by rotating the fixing screw, and then it can cooperate with the No. 1 stainless steel optical cable fixing card 306 to achieve double compression of the optical cable, effectively ensuring the stability between the optical cable and the main box body 1.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An optical cable splice box, comprising a main box body (1), wherein the main box body (1) comprises an upper box body (101) and a lower box body (102) arranged at the lower end of the upper box body (101), characterized in that: Both ends of the upper box body (101) and the lower box body (102) are provided with corresponding wire grooves (104); a connection bracket (3) is arranged inside the lower box body (102); a plurality of optical fiber receiving trays (5) are arranged at the upper end of the connection bracket (3); and the plurality of optical fiber receiving trays (5) are divided into two groups; The connecting bracket (3) comprises a base (301) and a strip-shaped boss (302); the base (301) is arranged inside the lower box body (102); and the strip-shaped boss (302) is arranged in the middle of the upper end surface of the base (301).

2. The optical cable splice box according to claim 1, characterized in that: The connecting bracket (3) further comprises an L-shaped limit block (303), an inclined platform (304) and a fixing seat (305); the L-shaped limit block (303) is arranged on the upper surface of the base (301) and is located on both sides of the strip-shaped boss (302).

3. The optical cable splice box according to claim 2, characterized in that: Two fixing seats (305) are provided, and the two fixing seats (305) are respectively arranged at two ends of the base (301). A wire fixing groove is provided on the base (301), and a No. 1 stainless steel optical cable fixing card (306) that cooperates with the wire fixing groove is provided on the upper surface of the base (301).

4. The optical cable splice box according to claim 3, characterized in that: The inclined platform (304) is arranged on the base (301) and is located between the strip boss (302) and the fixing seat (305); both ends of the strip boss (302) and the upper end surface of the inclined platform (304) are installed with galvanized slotted bolts (307) through mounting holes; and the galvanized slotted bolts (307) are threadedly connected with galvanized nuts (308).

5. The optical cable splice box according to claim 4, characterized in that: The two groups of optical fiber receiving trays (5) are respectively arranged at the two ends of the upper surface of the strip-shaped boss (302), and threaded holes (309) are provided at both ends of the upper surface of the strip-shaped boss (302). The optical fiber receiving tray (5) at the bottom of each group is fixed to the upper surface of the strip-shaped boss (302) by means of fixing screws.

6. The optical cable splice box according to claim 5, characterized in that: An optical fiber protection tube fixing block (4) is bonded to the center of the optical fiber receiving tray (5), and cable inlets (501) are provided at four corners of the optical fiber receiving tray (5). A limiting convex plate (502) is provided at the upper end of the inner wall of the optical fiber receiving tray (5).

7. The optical cable splice box according to claim 1, characterized in that: Connecting hooks (503) are provided at the upper parts of both ends of the side wall of one side of the optical fiber receiving tray (5), and convex shaft blocks (504) are provided at the lower parts of both ends of the side wall of the optical fiber receiving tray (5), and the upper and lower optical fiber receiving trays (5) are rotatably connected to the convex shaft blocks (504) via the connecting hooks (503).

8. The optical cable splice box according to claim 7, characterized in that: A buckle (505) is provided on the side of the optical fiber receiving tray (5) away from the connecting hook (503) and the convex shaft block (504). The optical fiber receiving tray (5) is installed in an inverted stacking manner. An upper cover (6) is provided on the uppermost optical fiber receiving tray (5) of each group.

9. The optical cable splice box according to claim 1, characterized in that: The edges of the upper box body (101) and the lower box body (102) are both provided with a plurality of corresponding bolt holes (103), the inner threads of the bolt holes (103) are connected with fixing bolts, and the upper box body (101) and the lower box body (102) are connected via the fixing bolts.

10. The optical cable splice box according to claim 1, characterized in that: No. 2 stainless steel optical cable fixing cards (2) are provided on the upper end surfaces of both ends of the lower box body (102) and located at the wire groove (104).

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