Drum-shaped aluminum alloy optical cable splice closure

Abstract

The utility model discloses a drum-shaped aluminum alloy optical cable splice closure, which comprises a round closure body, and a fiber disc is coaxially arranged in a round cavity of the closure body. A front sleeve seat and a rear sleeve seat are arranged on the left side or the right side of the box body, an optical cable leading-in sleeve is arranged in each sleeve seat, the fiber leading direction of each optical cable leading-in sleeve in the box body is left and right, and the fiber outlet directions of the front optical cable leading-in sleeve and the rear optical cable leading-in sleeve are respectively tangent to the front end and the rear end of the fiber coiling disc; and a box cover covers the box body in a sealing manner. The interior of the box body is wide and flat, and the area of the fiber coiling disc is large, so that enough optical fiber coiling space is reserved, optical fibers which are connected in the optical cable can be well protected, optical power transmission loss can be greatly avoided, and the optical cable connection protection device is reliable.

Description

Technical Field

[0001] The utility model relates to a communication optical cable connection accessory, in particular to a drum-shaped aluminum alloy optical cable connection box. Background Art

[0002] In the optical cable communication network, since the optical cable is formed by different connection methods of optical fibers, such as fusion or mechanical connection, jumper connection, etc., in addition to the quality of the optical fiber or cable itself and the network equipment, the most important thing to pay attention to is the optical cable connection point.

[0003] The scientific name of the optical cable junction box is the optical cable splicing box. It is a device that provides mechanical protection for the optical fiber and the optical cable after the optical fiber splicing in the optical cable is completed. It can provide optical, sealing and mechanical strength continuity splicing protection between adjacent optical cables.

[0004] The traditional optical cable junction box, such as the utility model patent application with announcement number CN201698064U, has a technical solution including a rectangular hollow box body, an optical cable fixing bracket and an optical cable reinforcement fixing column are arranged inside the box body, and clamps for fixing the optical cable are arranged at both ends of the box body.

[0005] However, this rectangular box structure usually has a fiber reel area that is too small, and the optical cable is not firmly fixed. There is no large bottom surface, so the joint is easy to roll during the welding operation and it is unstable. The optical fiber without the outer cable sheath protection is easily broken. Utility Model Content

[0006] In order to solve the deficiencies of the prior art, the utility model provides a drum-shaped aluminum alloy optical cable splicing box.

[0007] The drum-shaped aluminum alloy optical cable splicing box capable of solving the problems of the prior art comprises a box body, the difference being:

[0008] 1. The box body is circular, and a fiber coil is coaxially arranged in the circular cavity of the box body.

[0009] 2. The left or right side of the box body is provided with front and rear sleeves, each sleeve is provided with an optical cable introduction sleeve, and the fiber introduction direction of each optical cable introduction sleeve in the box body is left or right, and the fiber outlet directions of the front and rear optical cable introduction sleeves are tangent to the front and rear ends of the fiber coil, respectively.

[0010] 3. The box body is sealed with a box cover.

[0011] Furthermore, a structure of the optical cable introduction sleeve includes sleeves inside and outside the box body and a cable compression body, the tube hole of the sleeve is a fiber outlet hole, the cable compression body includes a lower cable compression block connected to the sleeve, an upper cable compression block is installed on the lower cable compression block by a bolt assembly, a semicircular groove is respectively opened between the upper cable compression block and the lower cable compression block, the upper and lower semicircular grooves form the cable compression hole of the optical cable introduction sleeve, and the cable compression hole is coaxially connected with the fiber outlet hole.

[0012] Furthermore, the fiber disc is installed in the box body through a screw rod, the box cover is closed on the box body, the upper end of the screw rod extends out of the box cover and is screwed with a locking nut, and a sealing ring is provided between the box body and the box cover.

[0013] Furthermore, the box body and the box cover are both made of aluminum alloy.

[0014] Beneficial effects of the utility model:

[0015] 1. The interior of the drum-shaped aluminum alloy optical cable splicing box of the utility model is wide and flat, and the fiber coiling plate area is large, so there is enough space for optical fiber coiling, which can not only well protect the optical fiber connected in the optical cable, but also greatly avoid the loss of optical power transmission.

[0016] 2. A sealing ring is provided between the box body and the box cover of the utility model, and the sealing performance and moisture-proof performance are good.

[0017] 3. The optical cable introduction sleeve adopted by the utility model has a large cable pressing area, uniform force, firm cable fixing, no damage to the optical cable, and is easy to operate.

[0018] 4. The box body and the box cover of the utility model are made of aluminum alloy, which has good corrosion resistance and aging resistance, can withstand drastic climate changes and adverse working environments, and is a reliable optical cable connection protection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of an implementation method of the utility model.

[0020] Figure 2 for Figure 1 A view in the figure.

[0021] Figure number identification: 1. Box body; 1-1. Sleeve seat; 1-2. Sealing groove; 2. Box cover; 3. Fiber coil; 4. Cable introduction sleeve; 4-1. Upper cable pressure block; 4-2. Bolt; 4-3. Sleeve; 4-4. Lower cable pressure block; 4-5. Cable pressure hole; 5. Screw; 6. Locking nut; 7. Fiber bundle guide screw. DETAILED DESCRIPTION

[0022] The technical solution of the utility model is further described below in conjunction with the implementation modes shown in the accompanying drawings.

[0023] The utility model discloses a drum-shaped aluminum alloy optical cable splicing box, which comprises a box body 1 and a box cover 2.

[0024] The box body 1 is a circular shell, which is formed by casting aluminum alloy material. The circular box mouth of the box body 1 is formed with a sealing groove 1-2. The left arc shell of the box body 1 is formed with front and rear sleeves 1-1. The sleeve holes of the sleeve 1-1 pass through the box body 1 to the left and right. Figure 1 shown.

[0025] A fiber coiling plate 3 is coaxially installed in the circular cavity of the box body 1 by means of a screw rod 5, and a plurality of optical fiber bundle tube guide screws 7 are evenly distributed in the semicircle of the box body 1 on the right side of the fiber coiling plate 3. A sealing ring is provided in the sealing groove 1-2, and a circular box cover 2 (made by casting and molding of aluminum alloy material) is covered on the box body 1 and pressed on the sealing ring. A coaxial screw hole is opened on the box cover 2, and the upper end of the screw rod 5 extends out of the box cover 2 from the screw hole. A locking nut 6 is screwed on the upper end of the screw 5. The locking nut 6 is tightened to fasten the box cover 2 to the box body 1. The box body 1 and the box cover 2 are combined into a drum-shaped structure, such as Figure 1 , Figure 2 shown.

[0026] Each housing 1-1 is provided with an optical cable introduction housing 4, such as Figure 1 shown.

[0027] The optical cable introduction sleeve 4 includes a sleeve 4-3 in the box body 1 and a rectangular cable pressing body outside the box body 1, the tube hole of the sleeve 4-3 is a fiber outlet hole, the cable pressing body includes a lower cable pressing block 4-4 connected with the sleeve 4-3, the upper cable pressing block 4-1 is clamped on the lower cable pressing block by front and rear rows of bolts 4-2, a semicircular groove is respectively opened between the upper cable pressing block 4-1 and the lower cable pressing block 4-4, the upper and lower semicircular grooves form a cable pressing hole 4-5 of the optical cable introduction sleeve 4, the cable pressing hole 4-5 is coaxially connected with the fiber outlet hole, the direction of the fiber outlet hole is from left to right, and the fiber outlet directions of the front and rear two fiber outlet holes are tangent to the front and rear ends of the fiber coiling plate 3 respectively (to avoid bending of the optical cable during the fiber outlet process), such as Figure 1 , Figure 2 shown.

Claims

1. A drum-shaped aluminum alloy optical cable splicing box, comprising a box body (1), characterized in that: The box body (1) is circular, and a fiber coil disk (3) is coaxially arranged in the circular cavity of the box body (1); The box body (1) is provided with two front and rear sleeves (1-1) on the left or right side, each sleeve (1-1) is provided with an optical cable introduction sleeve (4), the fiber introduction direction of each optical cable introduction sleeve (4) in the box body (1) is left or right, and the fiber outlet directions of the front and rear optical cable introduction sleeves (4) are tangent to the front and rear ends of the fiber coiling tray (3) respectively; The box body (1) is sealed with a box cover (2).

2. The drum-shaped aluminum alloy optical cable splicing box according to claim 1 is characterized in that: The optical cable introduction sleeve (4) comprises sleeves (4-3) inside and outside the box body (1) and a cable pressing body, the tube hole of the sleeve (4-3) is a fiber outlet hole, the cable pressing body comprises a lower cable pressing block connected to the sleeve (4-3), an upper cable pressing block (4-1) is installed on the lower cable pressing block by a bolt assembly, a semicircular groove is respectively provided between the upper cable pressing block (4-1) and the lower cable pressing block, the upper and lower semicircular grooves form a cable pressing hole (4-5) of the optical cable introduction sleeve (4), and the cable pressing hole (4-5) is coaxially connected to the fiber outlet hole.

3. The drum-shaped aluminum alloy optical cable splicing box according to claim 1 is characterized in that: The fiber disc (3) is installed in the box body (1) through a screw rod (5), and the box cover (2) is covered on the box body (1). The upper end of the screw rod (5) extends out of the box cover (2) and is screwed with a locking nut (6). A sealing ring is provided between the box body (1) and the box cover (2).

4. The drum-shaped aluminum alloy optical cable splicing box according to any one of claims 1 to 3, characterized in that: The box body (1) and the box cover (2) are both made of aluminum alloy material.

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