Outdoor waterproof optical fiber box

Abstract

The utility model relates to the field of optical fiber connection fittings, in particular to an outdoor waterproof optical fiber box, which comprises a main body, an adapter is arranged in the main body, two connection ends of the adapter are respectively used for connecting an access cable and an outgoing cable, and two openings of the main body are respectively connected with an upper packing nut and a lower packing nut. Silica gel sealing sleeves are arranged between the upper packing nut and the main body and between the lower packing nut and the main body, the silica gel sealing sleeves are provided with threading holes for cables to penetrate through, and the upper packing nut and the lower packing nut are configured to be capable of pressing the silica gel sealing sleeves to contract inwards. After the cable penetrates into the main body and is connected with the adapter, the silica gel sealing sleeve can be tightly attached to part of the cable penetrating through the silica gel sealing sleeve by screwing the upper packing nut and the lower packing nut, the sealing effect is achieved, water is prevented from entering the main body from the contact port, and compared with an optical fiber box, the whole structure is simple, the number of parts is small, cost is low, and waterproof performance is good.

Description

Technical Field

[0001] The present application relates to the technical field of optical fiber connection accessories, and in particular to an outdoor waterproof optical fiber box. Background Art

[0002] The outdoor fiber optic box is a splicing protection device that provides optical, sealing and mechanical strength continuity for adjacent optical cable components. In optical communication networks, due to the limited length of optical fibers and the need to branch on the transmission line, optical fiber splices and fiber optic boxes are used to provide conditions for optical fiber splicing and branching and to protect the splices.

[0003] In the related art, optical fibers in outdoor environments are easily affected by various factors, such as temperature changes, ultraviolet radiation, moisture erosion, etc. These factors may cause the transmission performance of the optical fibers to degrade or be damaged. In order to improve the waterproof effect of the optical fiber box, a PG waterproof head is installed at the cable access port and the access port of the optical fiber box to protect the optical fibers from moisture erosion in the outdoor environment.

[0004] The problem with the related art is that the method of installing two PG waterproof caps on the optical fiber box to prevent moisture from damaging the optical fiber is not only costly, but also complicated to install and inefficient. Utility Model Content

[0005] In order to reduce the cost of optical fiber splicing, simplify the installation method and improve efficiency, the present application provides an outdoor waterproof optical fiber box.

[0006] The present application provides an outdoor waterproof optical fiber box adopting the following technical solution:

[0007] An outdoor waterproof optical fiber box comprises a main body, both ends of the main body are configured as open structures for cables to pass through, an adapter is arranged inside the main body, the two connecting ends of the adapter are respectively used to connect incoming cables and outgoing cables, an upper clamping nut and a lower clamping nut are respectively connected to the two openings of the main body, a silicone sealing sleeve is arranged between the upper clamping nut and the lower clamping nut and the main body, a threading hole for the cable to pass through is opened on the silicone sealing sleeve, and the upper clamping nut and the lower clamping nut are both configured to compress the silicone sealing sleeve to shrink inward.

[0008] By adopting the above technical solution, the incoming cable and the outgoing cable are respectively extended into the main body through the upper clamping nut, the lower clamping nut and the two silicone sealing sleeves, and are respectively connected to the adapter inside the main body to achieve connection. By tightening the upper clamping nut and the lower clamping nut with the main body, the silicone sealing sleeve is abutted against the cable passing therethrough to achieve sealing, thereby achieving a waterproof effect. The connector has a simple structure, simplifies the installation method, and improves work efficiency.

[0009] Optionally, the adapter is arranged in the middle of the main body, and the inner diameter of the main body gradually decreases from the middle to both ends.

[0010] By adopting the above technical solution, when the cable is inserted into the main body, the smaller inner diameter of the opening can reduce the reserved space between the cable and the opening, reducing the possibility of moisture entering, and the larger inner diameter of the middle part of the main body can facilitate the connection of the cable and the adapter.

[0011] Optionally, both ends of the main body are provided with a threaded portion and a clamping portion, the clamping portion is relatively arranged at the end away from the main body, the threaded portion is cooperated with the upper clamping nut and the lower clamping nut, and the clamping portion is cooperated with the silicone sealing sleeve to clamp the cable passing through the silicone sealing sleeve.

[0012] By adopting the above technical solution, the threaded portion enables the main body to be threadedly connected with the upper clamping nut and the lower clamping nut. The setting of the clamping portion enables an inward clamping force to be applied to the silicone sealing sleeve when the upper clamping nut and the lower clamping nut are tightened, so that the silicone sealing sleeve is in full contact with the cable, making the cable connection more secure and improving the sealing effect.

[0013] Optionally, the clamping portion includes a plurality of rods integrally formed on the end face of the threaded portion, the plurality of rods all extend along the axial direction of the main body and are distributed at axial intervals, the clamping portion also includes a clamping claw integrally formed at the end of the rod, the clamping claw extends along the radial direction of the main body, and an annular embedding groove is provided on the surface of the silicone sealing sleeve, and the clamping claw corresponds to the embedding groove.

[0014] By adopting the above technical solution, when the upper clamping nut and the lower clamping nut are tightened on the main body, the inner wall of the rod of the clamping part is tightly attached to the outer surface of the silicone sealing sleeve, and the clamping claw of the clamping part extends into the embedding groove to apply clamping force to the silicone sealing sleeve.

[0015] Optionally, the main body includes an upper shell and a lower shell that are detachably connected and coaxially distributed, a mounting substrate is provided between the upper shell and the lower shell, and the adapter is fixed on the mounting substrate.

[0016] By adopting the above technical solution, the main body is composed of an upper shell and a lower shell connected to each other, and the mounting base provides support for the adapter. When connecting the cables, the two cables can first be passed through the upper shell and the lower shell respectively, and then connected to the adapter, and then the upper shell and the lower shell are connected to each other. The operation is simple and the connection is convenient.

[0017] Optionally, a first splicing part and a second splicing part are respectively formed at the connection between the upper shell and the lower shell, the second splicing part is inserted into the upper shell and abuts against the inner wall of the first splicing part, and matching card grooves and card blocks are respectively provided on the abutting surfaces of the first splicing part and the second splicing part.

[0018] By adopting the above technical solution, when the second joint part is inserted into the upper shell, a step-shaped joint seam is formed at the connection between the upper shell and the lower shell to reduce the amount of moisture entering the interior of the main body from the connection. The matching arrangement of the card slot and the card block is used to connect the upper shell and the lower shell and keep them relatively still.

[0019] Optionally, an annular cavity is reserved between the first splicing part and the lower shell, an outer sealing ring is embedded in the annular cavity, and an accommodating cavity is reserved between the end face of the second splicing part and the upper shell, one end of the mounting substrate is placed in the accommodating cavity, and an elastic gasket is also arranged in the accommodating cavity, one side of the elastic gasket abuts against the inner wall of the upper shell, and the other side abuts against the mounting substrate.

[0020] By adopting the above technical solution, the outer sealing ring arranged in the annular cavity can further prevent moisture from entering the interior from the connection between the upper shell and the lower shell. The elastic gasket is arranged between the upper shell and the mounting substrate. When the upper shell and the lower shell are connected, the elastic gasket can respectively exert pressure on the upper shell and the lower shell to move away from each other, which is mainly used to prevent the outer sealing ring from being subjected to long-term pressure and aging and losing its elasticity, resulting in waterproof failure.

[0021] Optionally, the surfaces of the upper shell and the lower shell are both distributed with reinforcing ribs extending along the generatrix direction thereof.

[0022] By adopting the above technical solution, the arrangement of the reinforcing ribs can improve the structural strength of the upper shell and the lower shell.

[0023] Optionally, a portion of the second joint portion extending into the main body is provided with an annular groove, and an O-ring is disposed in the annular groove.

[0024] By adopting the above technical solution, the provision of an O-ring can further improve the sealing effect of the equipment.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. Through the coordination of the upper clamping nut, the lower clamping nut and the silicone sealing sleeve, after the cable is inserted into the main body and connected to the adapter, tightening the upper clamping nut and the lower clamping nut can make the silicone sealing sleeve close to the part of the cable passing through it, play a sealing role, and prevent moisture from entering the main body from the contact port. Compared with the optical fiber box, the overall structure is simple, the parts are few, the cost is low, and the waterproof performance is good;

[0027] 2. The main body is divided into an upper shell and a lower shell, the upper shell and the lower shell are detachably connected, and an adapter is arranged between the upper shell and the lower shell to facilitate the staff to plug and unplug the cables. The arrangement of the outer sealing ring and the O-ring can improve the sealing performance of the connection between the upper shell and the lower shell and reduce moisture infiltration;

[0028] 3. By means of the elastic gasket arranged between the mounting substrate and the upper shell, when the upper shell is connected to the lower shell, one side of the mounting substrate abuts against the end face of the lower shell, and the other side abuts against the elastic gasket, and the elastic gasket abuts against the upper shell. At this time, the elastic gasket is deformed, exerting pressure on the upper shell away from the lower shell, and exerting pressure on the lower shell away from the upper shell through the mounting substrate, so as to reduce the external force on the outer sealing ring arranged between the upper shell and the lower shell, and prevent the outer sealing ring from losing its elasticity due to long-term pressure aging, resulting in waterproof failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a front view structural schematic diagram of an embodiment of the present application.

[0030] Figure 2 It is a schematic diagram of the overall explosion structure of an embodiment of the present application.

[0031] Figure 3 It is a schematic diagram of the side cross-sectional structure of an embodiment of the present application.

[0032] Figure 4 It is a schematic diagram of the front cross-sectional structure of an embodiment of the present application.

[0033] Figure 5 yes Figure 4 A schematic diagram of the enlarged structure at point A in the middle.

[0034] Figure 6 yes Figure 4 A magnified schematic diagram of the structure at point B in the middle.

[0035] Figure numerals: 1. main body; 101. upper shell; 1011. first splicing part; 102. lower shell; 1021. second splicing part; 2. adapter; 3. upper clamping nut; 4. lower clamping nut; 5. silicone sealing sleeve; 6. threading hole; 7. threaded part; 8. clamping part; 81. rod; 82. clamping claw; 9. mounting groove; 10. mounting base; 11. elastic gasket; 12. slot; 13. block; 14. outer sealing ring; 15. reinforcing rib; 16. O-ring. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-6 This application is described in further detail.

[0037] The present application embodiment discloses an outdoor waterproof optical fiber box. Figure 1An outdoor waterproof optical fiber box includes a main body 1 which is roughly cylindrical and tubular. Both ends of the main body 1 are open and vertically penetrated. An adapter 2 is arranged inside the main body 1. The adapter 2 has two wiring terminals, which are respectively facing the openings at both ends of the main body 1. The incoming cable extends into the main body 1 through one end opening and is connected to one connecting end of the adapter 2. The outgoing cable extends into the main body 1 through the other port and is connected to the other wiring end of the adapter 2 to realize the optical fiber connection work.

[0038] Reference Figure 2 and Figure 3 The main body 1 includes an upper shell 101 and a lower shell 102 which are coaxially distributed, wherein the upper shell 101 and the lower shell 102 are both open-ended structures, and one end of the two can be detachably connected to form the main body 1. The adapter 2 is arranged at the connection between the upper shell 101 and the lower shell 102 to facilitate the plugging and unplugging of the cable. Preferably, the inner diameter of the main body 1 gradually decreases from the middle to the two ends, that is, the inner diameter of the end where the upper shell 101 and the lower shell 102 are close to each other is the largest, and the inner diameter of the end where they are far away is the smallest.

[0039] Furthermore, a first splicing portion 1011 is provided at one end of the upper shell 101 facing the lower shell 102, and a second splicing portion 1021 is correspondingly provided on the lower shell 102. The first splicing portion 1011 is integrally formed with the upper shell 101, and the second splicing portion 1021 is integrally formed with the lower shell 102, and the inner diameter of the first splicing portion 1011 is equal to the outer diameter of the second splicing portion 1021, thereby forming a structure in which the second splicing portion 1021 can be inserted into the first splicing portion 1011. When the upper shell 101 and the lower shell 102 are in a connected state, the outer wall of the second splicing portion 1021 abuts against the inner wall of the first splicing portion 1011.

[0040] Furthermore, a card slot 12 is provided at one end of the first splicing part 1011 facing the lower shell 102, and a card block 13 is correspondingly formed on the second splicing part 1021. The card slot 12 is set to a substantially L-shaped structure, that is, it includes a vertical slot body extending along the busbar direction of the first splicing part 1011 and penetrating the end face of the first splicing part 1011, and an arc-shaped slot body extending along the circumferential direction of the first splicing part 1011. When connecting the upper shell 101 and the lower shell 102, firstly, the upper shell 101 is brought close to the lower shell 102, and the card block 13 corresponds to the opening of the vertical slot body and slides into the vertical slot body. When the card block 13 is located at the connection between the vertical slot body and the arc-shaped slot body, the upper shell 101 or the lower shell 102 is rotated to slide the card block 13 to one end of the arc-shaped slot body to achieve card connection. When plugging and unplugging cables, the upper shell 101 or the lower shell 102 is rotated in the opposite direction, and an external force is applied to the two to move away from each other.

[0041] Furthermore, one end of the arc-shaped groove body away from the vertical groove body is arranged as a limiting groove structure that contracts inwardly. When the upper shell 101 and the lower shell 102 are connected, the block 13 moves into the limiting groove. The setting of the limiting groove can increase the unlocking difficulty of the upper shell 101 and the lower shell 102 and improve the connection effect.

[0042] Reference Figure 4 and Figure 5 When the upper shell 101 and the lower shell 102 are in a connected state, an annular cavity is reserved between the end surface of the first splicing portion 1011 facing the lower shell 102 and the lower shell 102, and an outer sealing ring 14 is arranged in the annular cavity to improve the sealing performance of the connection between the upper shell 101 and the lower shell 102. The material of the outer sealing ring 14 is preferably silicone.

[0043] An accommodating cavity is reserved between the upper shell 101 and an end face of the second splicing portion 1021 facing the upper shell 101, and an elastic gasket 11 and a mounting substrate 10 are arranged in the accommodating cavity, wherein the mounting substrate 10 abuts against the end face of the second splicing portion 1021, and the above-mentioned adapter 2 is installed on the mounting substrate 10; the elastic gasket 11 is annular and is arranged between the upper shell 101 and the mounting substrate 10. When the upper shell 101 and the lower shell 102 are in a connected state, the elastic gasket 11 is squeezed and deformed, thereby applying pressure to the upper shell 101 and the mounting substrate 10 respectively to make the two move away from each other, and the mounting substrate 10 further transmits the pressure to the lower shell 102, so that the lower shell 102 and the upper shell 101 have a tendency to move in opposite directions, thereby reducing the pressure on the outer sealing ring 14 arranged between the upper shell 101 and the lower shell 102, and preventing the outer sealing ring 14 from aging and reducing the sealing effect.

[0044] Furthermore, an annular groove is provided in the portion where the second splicing portion 1021 extends into the upper shell 101, and an O-ring 16 is arranged in the annular groove. When the upper shell 101 and the lower shell 102 are in a connected state, one side of the O-ring 16 abuts against the inner wall of the first splicing portion 1011, and is arranged in cooperation with the outer sealing ring 14 to improve the sealing performance of the connection between the upper shell 101 and the lower shell 102 and reduce moisture infiltration.

[0045] Reference Figure 4 and Figure 6, threaded parts 7 are respectively provided at the ends of the upper shell 101 and the lower shell 102 that are away from each other, a matching upper clamping nut 3 is provided at the threaded part 7 of the upper shell 101, and a matching lower clamping nut 4 is provided at the threaded part 7 of the lower shell 102, a silicone sealing sleeve 5 is provided between the upper clamping nut 3 and the upper shell 101, and between the lower clamping nut 4 and the lower shell 102, and a threading hole 6 coaxially arranged with the main body 1 and interconnected is opened in the middle of the upper clamping nut 3, the lower clamping nut 4 and the silicone sealing sleeve 5, and the cable is inserted into the main body 1 through the threading hole 6. When the upper clamping nut 3 is tightened on the upper shell 101, the silicone sealing sleeve 5 arranged between the two is pressed to move toward the cable, so as to be fully close to the cable and play a sealing role, and the same is true for the lower clamping nut 4.

[0046] Furthermore, a clamping part 8 is provided at one end of the two threaded parts 7 away from the main body 1. The clamping part 8 includes a rod 81 and a clamping claw 82, wherein a plurality of rods 81 are provided and distributed on the end surface of the threaded part 7 at intervals in the circumferential direction, and the clamping claw 82 is integrally formed at one end of the rod 81 away from the threaded part 7. The rod 81 extends along the axial direction of the threaded part 7, and the rod 81 extends along the radial direction of the threaded part 7. An annular embedding groove 9 is provided on the outer circumferential surface of the silicone sealing sleeve 5. When the upper clamping nut 3 or the lower clamping nut 4 is tightened, the clamping claw 82 is clamped in the embedding groove 9, so that the silicone sealing sleeve 5 is firmly connected, and the sealing performance is further improved.

[0047] Reinforcing ribs 15 extending along the generatrix of the upper shell 101 and the lower shell 102 are provided on the outer surfaces thereof to improve the structural strength of the upper shell 101 and the lower shell 102 .

[0048] The implementation principle of an outdoor waterproof optical fiber box in the embodiment of the present application is as follows: when connecting optical fibers, first install the elastic gasket 11 on the upper shell 101, then insert the cable into the upper shell 101 through the upper clamping nut 3 and the silicone sealing sleeve 5, then install the outer sealing ring 14 and the O-ring 16 into the lower shell 102, and then insert the other cable into the lower shell 102 through the lower clamping nut 4 and the silicone sealing sleeve 5, and a mounting substrate 10 and an adapter 2 are provided at one end of the lower shell 102 facing the upper shell 101, and the two cables inserted into the upper shell 101 and the lower shell 102 are respectively connected to the adapter 2, and then the lower shell 102 is inserted into the upper shell 101. After rotating a certain angle, the upper shell 101 and the lower shell 102 are retracted to achieve sealing at the connection, and then the upper clamping nut 3 and the lower clamping nut 4 are tightened respectively to achieve sealing at both ends.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An outdoor waterproof optical fiber box, characterized in that: The invention comprises a main body (1), wherein an adapter (2) is arranged inside the main body (1), and two connecting ends of the adapter (2) are respectively used for connecting an incoming cable and an outgoing cable, and both ends of the main body (1) are arranged as an opening structure for allowing the cable to pass through, and an upper clamping nut (3) and a lower clamping nut (4) are respectively connected to the two openings, and a silicone sealing sleeve (5) is inserted into the two openings of the main body (1), and a threading hole (6) for allowing the cable to pass through is opened on the silicone sealing sleeve (5), and the upper clamping nut (3) and the lower clamping nut (4) are both configured to compress the silicone sealing sleeve (5) to shrink inwardly, and the main body (1) comprises an upper shell (101) and a lower shell (102) which are detachably connected and coaxially distributed, and a mounting substrate (10) is arranged between the upper shell (101) and the lower shell (102), and the adapter (2) is fixed on the mounting substrate (10).

2. The outdoor waterproof optical fiber box according to claim 1, characterized in that: The adapter (2) is arranged in the middle of the main body (1), and the inner diameter of the main body (1) gradually decreases from the middle to both ends.

3. The outdoor waterproof optical fiber box according to claim 1, characterized in that: Both ends of the main body (1) are provided with a threaded portion (7) and a clamping portion (8); the clamping portion (8) is relatively arranged at the end away from the main body (1); the threaded portion (7) is arranged in cooperation with an upper clamping nut (3) and a lower clamping nut (4); the clamping portion (8) is arranged in cooperation with a silicone sealing sleeve (5) for clamping a cable passing through the silicone sealing sleeve (5).

4. The outdoor waterproof optical fiber box according to claim 3, characterized in that: The clamping portion (8) comprises a plurality of rods (81) integrally formed on the end surface of the threaded portion (7), the plurality of rods (81) extending along the axial direction of the main body (1) and being distributed at intervals in the axial direction, the clamping portion (8) further comprises a clamping claw (82) integrally formed on the end of the rod (81), the clamping claw (82) extending along the radial direction of the main body (1), the surface of the silicone sealing sleeve (5) is provided with an annular embedding groove (9), the clamping claw (82) corresponding to the embedding groove (9).

5. The outdoor waterproof optical fiber box according to claim 1, characterized in that: Reinforcing ribs (15) extending along the generatrix direction are distributed on the surfaces of the upper shell (101) and the lower shell (102).

6. The outdoor waterproof optical fiber box according to claim 1, characterized in that: A first splicing portion (1011) and a second splicing portion (1021) are respectively formed at the connection between the upper shell (101) and the lower shell (102); the second splicing portion (1021) is inserted into the upper shell (101) and abuts against the inner wall of the first splicing portion (1011); matching card slots (12) and card blocks (13) are respectively provided on the abutting surfaces of the first splicing portion (1011) and the second splicing portion (1021).

7. An outdoor waterproof optical fiber box according to claim 6, characterized in that: An annular cavity is reserved between the first joint portion (1011) and the lower shell (102), an outer sealing ring (14) is embedded in the annular cavity, and an accommodating cavity is reserved between the end surface of the second joint portion (1021) and the upper shell (101), one end of the mounting substrate (10) is placed in the accommodating cavity, an elastic gasket (11) is also arranged in the accommodating cavity, one side of the elastic gasket (11) is in contact with the inner wall of the upper shell (101), and the other side is in contact with the mounting substrate (10).

8. The outdoor waterproof optical fiber box according to claim 6, characterized in that: An annular groove is formed in the portion of the second joint portion (1021) extending into the main body (1), and an O-ring (16) is disposed in the annular groove.

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