Optical fiber waterproof sealing interface of optical cable connector box

Abstract

The invention relates to an optical fiber waterproof sealing interface of an optical cable connector box, which comprises a fixed base, a U-shaped frame, a spring, a top semicircular clamping piece and a bottom semicircular clamping piece, and is characterized in that one end of the U-shaped frame is rotatably connected with the fixed base, and the other end of the U-shaped frame is detachably connected with the fixed base; the U-shaped frame is connected with the top semicircular clamping piece through a spring, the fixed base is provided with a clamping piece installation groove used for installing the bottom semicircular clamping piece, the top semicircular clamping piece is located over the bottom semicircular clamping piece, and the two ends of the top semicircular clamping piece are connected with the two ends of the bottom semicircular clamping piece through buckles. A gasket is arranged at the joint of the end surfaces of the top semicircular clamping piece and the bottom semicircular clamping piece; special-shaped rubber rings in interference fit with the optical cable are arranged on the inner sides of the top semicircular clamping piece and the bottom semicircular clamping piece, and flexible grooves are formed in the tops of one sides of the special-shaped rubber rings. Compared with the prior art, the optical cable connector box has the advantages that the optical fiber waterproof performance of the optical cable connector box is improved, and use is convenient and reliable.

Description

Technical Field

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

[0002] The optical cable splice box is a device specially used to connect two or more spliced optical cables, which has the function of protecting and fixing the optical fiber splices. The main function of the optical cable splice box is to protect the optical fiber splices and prevent them from being damaged, while facilitating the connection and maintenance of optical fibers. It has excellent sealing performance and can effectively prevent moisture and dust from entering the optical cable, thereby ensuring the stability and reliability of optical fiber transmission.

[0003] The utility model with publication number CN220188765U discloses a split nut and a junction box, belonging to the technical field of optical cable junction boxes, comprising a first part and a second part, wherein the arcuate notch of the first part and the arcuate notch of the second part are configured to be able to enclose and form a through hole, and the first part and the second part form two oppositely arranged end surfaces at the junction of the arcuate notch, the first part is provided with a guide strip at one of the end surfaces, the second part is provided with a guide groove at at least one of the end surfaces, and a limiting structure is provided on one side of the guide groove along the extension direction of the notch.

[0004] Most of the interfaces of existing optical cable junction boxes directly fix the optical cables through arc-shaped grooves, but there are still problems with many gaps. In addition, the outer surface of the optical cable will inevitably wear or age during use. The existing solutions are all structures with fixed shapes and positions, which cannot be adaptively adjusted, thus affecting the sealing performance. Summary of the invention

[0005] The purpose of the present invention is to provide a fiber optic waterproof sealing interface of an optical cable junction box in order to overcome the defects of the prior art that there is a gap between the interface of the optical cable junction box and the optical cable, and that it cannot be adaptively adjusted according to the shape of the optical cable, thus affecting the sealing performance.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] An optical fiber waterproof sealing interface of an optical cable junction box comprises a fixed base, a U-shaped frame, a spring, a top semicircular clamping piece and a bottom semicircular clamping piece, one end of the U-shaped frame is rotatably connected to the fixed base, and the other end is detachably connected to the fixed base, an optical cable installation cavity is formed between the U-shaped frame and the fixed base, and the spring, the top semicircular clamping piece and the bottom semicircular clamping piece are all located in the optical cable installation cavity;

[0008] The U-shaped frame is connected to the top semicircular clamping piece through a spring, and the fixed base is provided with a clamping piece installation groove for installing the bottom semicircular clamping piece. The top semicircular clamping piece is located directly above the bottom semicircular clamping piece, and the two ends of the top semicircular clamping piece are connected to the two ends of the bottom semicircular clamping piece through a buckle, and a gasket is provided at the end surface connection of the top semicircular clamping piece and the bottom semicircular clamping piece; the inner sides of the top semicircular clamping piece and the bottom semicircular clamping piece are both provided with a special-shaped rubber ring that is interference fit with the optical cable, the bottom of the special-shaped rubber ring is connected to the inner side of the top semicircular clamping piece or the bottom semicircular clamping piece, and a flexible groove is provided on the top of one side of the special-shaped rubber ring.

[0009] Furthermore, both ends of the top semicircular clamping piece are provided with claws extending downwards, and both ends of the bottom semicircular clamping piece are provided with clamping matching blocks matching with the claws on both sides.

[0010] Furthermore, the claws are made of elastic material.

[0011] Furthermore, the cross-sectional shape of the special-shaped rubber ring is a rectangle as a whole, and one side of the rectangle is concave inward to form the cross-sectional shape of the flexible groove.

[0012] Furthermore, the cross-sectional shape of the flexible groove is semicircular or triangular.

[0013] Furthermore, the cross-sectional shape of the special-shaped rubber ring includes a top horizontal straight line, a right vertical line, a bottom horizontal line, a left vertical line and a left concave arc line connected in sequence, one end of the left concave arc line is connected to the left vertical line, and the other end is connected to the top horizontal straight line.

[0014] Furthermore, one end of the U-shaped frame is rotatably connected to the fixed base via a hinge.

[0015] Furthermore, threaded holes are provided on one side end of the U-shaped frame and the fixed base, and one end of the U-shaped frame is connected to the fixed base through a bolt passing through the threaded hole.

[0016] Furthermore, a combination of a plurality of springs, a top semicircular clamping piece and a bottom semicircular clamping piece is installed between the U-shaped frame and the fixed base.

[0017] Furthermore, a plurality of special-shaped rubber rings are provided in the optical cable installation cavity between the top semicircular clamping piece and the bottom semicircular clamping piece along the extension direction of the optical cable installation cavity.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] (1) The present invention provides gaskets on both sides of the top semicircular clamping piece and the bottom semicircular clamping piece, and provides special-shaped rubber rings inside. The top side of the special-shaped rubber ring is concave. When the top semicircular clamping piece and the bottom semicircular clamping piece are loaded with the optical cable and connected by snap fasteners, the special-shaped rubber ring and the optical cable have an interference fit, and the top side is concave. The concave area of the top of the special-shaped rubber ring will bend, so that it fits on the surface of the optical cable according to the shape of the optical cable; the four sides of the optical cable are completely sealed by the two special-shaped rubber rings and the two gaskets, respectively, to ensure the waterproof performance of the optical cable;

[0020] Since the special-shaped rubber ring has a certain elasticity, the U-shaped frame of this solution is provided with a spring to connect the top semicircular clamping piece, so as to continuously provide a clamping force for the top semicircular clamping piece to ensure the sealing performance of the optical cable. Moreover, since the top semicircular clamping piece and the bottom semicircular clamping piece are connected by a snap buckle, the clamping force of the top semicircular clamping piece will not be hindered.

[0021] (2) The top semicircular clamping piece and the bottom semicircular clamping piece are connected by a snap-fit connection. When in use, the top semicircular clamping piece is pressed by the U-shaped frame, and the top end of its claw will gradually extend outward until it is clamped into the clamping matching blocks at both ends of the bottom semicircular clamping piece, thereby completing the fixation of the top semicircular clamping piece and the bottom semicircular clamping piece. When disassembling, the claws at both ends of the top semicircular clamping piece can be opened. This structure is easy to use and has reliable fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A front view of the overall structure of an optical fiber waterproof sealing interface of an optical cable splice box provided in an embodiment of the present invention;

[0023] Figure 2 A schematic cross-sectional view of a special-shaped rubber ring provided in an embodiment of the present invention;

[0024] In the figure, 1. fixed base, 101. clamping piece installation groove, 2. U-shaped frame, 3. spring, 4. top semicircular clamping piece, 401. claw, 5. bottom semicircular clamping piece, 501. snap-fit block, 6. optical cable installation cavity, 7. gasket, 8. special-shaped rubber ring, 801. flexible groove. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Accordingly, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0027] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0028] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the inventive product is customarily placed during use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0029] It should be noted that the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, "a plurality" means two or more, unless otherwise specifically defined.

[0030] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but may be slightly inclined.

[0031] Embodiment 1

[0032] As Figure 1 shown, this embodiment provides a fiber optic waterproof sealing interface for an optical cable splice closure, including a fixed base 1, a U-shaped frame 2, a spring 3, a top semi-circular clamping member 4, and a bottom semi-circular clamping member 5. One end of the U-shaped frame 2 is rotatably connected to the fixed base 1, and the other end is detachably connected to the fixed base 1. An optical cable installation cavity 6 is formed between the U-shaped frame 2 and the fixed base 1. The spring 3, the top semi-circular clamping member 4, and the bottom semi-circular clamping member 5 are all located in the optical cable installation cavity 6;

[0033] The U-shaped frame 2 is connected to the top semicircular clamping piece 4 through a spring 3, and the fixed base 1 is provided with a clamping piece installation groove 101 for installing the bottom semicircular clamping piece 5. The top semicircular clamping piece 4 is located directly above the bottom semicircular clamping piece 5, and the two ends of the top semicircular clamping piece 4 are connected to the two ends of the bottom semicircular clamping piece 5 through a buckle. A gasket 7 is provided at the end surface connection of the top semicircular clamping piece 4 and the bottom semicircular clamping piece 5; the inner sides of the top semicircular clamping piece 4 and the bottom semicircular clamping piece 5 are both provided with a special-shaped rubber ring 8 that is interference fit with the optical cable, and the bottom of the special-shaped rubber ring 8 is connected to the inner side of the top semicircular clamping piece 4 or the bottom semicircular clamping piece 5, and a flexible groove 801 is provided on the top of one side of the special-shaped rubber ring 8, such as Figure 2 shown.

[0034] The present invention provides gaskets 7 on both sides of the top semicircular clamping piece 4 and the bottom semicircular clamping piece 5, and provides special-shaped rubber rings 8 inside. The top side of the special-shaped rubber ring 8 is concave. When the top semicircular clamping piece 4 and the bottom semicircular clamping piece 5 are loaded with the optical cable and connected by snap fasteners, the special-shaped rubber ring 8 and the optical cable are interference-fitted, and the top side is concave. The concave area of the top of the special-shaped rubber ring 8 will bend, so that it fits on the surface of the optical cable according to the shape of the optical cable; the four sides of the optical cable are completely sealed by the two special-shaped rubber rings 8 and the two gaskets 7, respectively, to ensure the waterproof performance of the optical cable;

[0035] Since the special-shaped rubber ring 8 has a certain elasticity, the U-shaped frame 2 of the present invention is provided with a spring 3 connected to the top semicircular clamping piece 4, so as to continuously provide a clamping force for the top semicircular clamping piece 4 to ensure the sealing performance of the optical cable. Moreover, since the top semicircular clamping piece 4 and the bottom semicircular clamping piece 5 are connected by a snap buckle, the clamping force of the top semicircular clamping piece 4 will not be hindered.

[0036] The special-shaped rubber ring 8 is made of elastic rubber material and has telescopic properties.

[0037] As a preferred embodiment, in order to cooperate with the spring 3 to provide a clamping force to the top semicircular clamping piece 4, the top semicircular clamping piece 4 and the bottom semicircular clamping piece 5 are connected by a snap-fit connection. Both ends of the top semicircular clamping piece 4 are provided with downwardly extending claws 401, and both ends of the bottom semicircular clamping piece 5 are respectively provided with snap-fitting matching blocks 501 on both sides that cooperate with the claws 401.

[0038] The claw 401 is made of elastic material and is easy to bend.

[0039] When in use, after the optical cable is installed, by pressing the top semicircular clamping piece 4, the top end of its claw 401 will gradually extend outward until it is clamped into the clamping matching blocks 501 at both ends of the bottom semicircular clamping piece 5, thereby completing the fixation of the top semicircular clamping piece 4 and the bottom semicircular clamping piece 5; when disassembling, just pry open the claws 401 at both ends of the top semicircular clamping piece 4; this structure is easy to use and has reliable fixation.

[0040] The cross-sectional shape of the flexible groove 801 of the special-shaped rubber ring 8 can be semicircular or triangular, with good bending effect; one end of the special-shaped rubber ring 8 facing the optical cable installation cavity 6 can be set as a plane or a circular arc surface; in this embodiment, the overall cross-sectional shape of the special-shaped rubber ring 8 is rectangular, and one side of the rectangle is recessed inward to form the cross-sectional shape of the flexible groove 801.

[0041] Specifically, the cross-sectional shape of the special-shaped rubber ring 8 includes a top horizontal straight line, a right vertical straight line, a bottom horizontal line, a left vertical straight line, and a left concave arc line connected in sequence. One end of the left concave arc line is connected to the left vertical straight line, and the other end is connected to the top horizontal straight line.

[0042] The rotatable connection mode between the U-shaped frame 2 and the fixed base 1 can be hinge connection, spherical connection, etc., and the detachable connection mode between the U-shaped frame 2 and the fixed base 1 can be bolt connection, buckle connection, etc.

[0043] In this embodiment, one end of the U-shaped frame 2 is rotatably connected to the fixed base 1 through a hinge.

[0044] Threaded holes are provided at one end of both the U-shaped frame 2 and the fixed base 1, and one end of the U-shaped frame 2 is connected to the fixed base 1 through a bolt passing through the threaded hole.

[0045] The spring 3, the top semi-circular clamping member 4, and the bottom semi-circular clamping member 5 form a combination. A plurality of the above combinations can be installed between the U-shaped frame 2 and the fixed base 1 to fix a plurality of optical cables simultaneously.

[0046] In the optical cable installation cavity 6 between the top semi-circular clamping member 4 and the bottom semi-circular clamping member 5, a plurality of special-shaped rubber rings 8 are provided along the extension direction of the optical cable installation cavity 6 to fix the optical cable in the extension direction of the optical cable installation cavity 6.

[0047] The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations according to the concept of the present invention without creative labor. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field based on the concept of the present invention through logical analysis, reasoning, or limited experiments on the basis of the prior art should be within the protection scope determined by the claims.

Claims

1. An optical fiber waterproof and sealing interface of an optical cable splice closure, characterized in that, The invention comprises a fixed base (1), a U-shaped frame (2), a spring (3), a top semicircular clamping piece (4) and a bottom semicircular clamping piece (5); one end of the U-shaped frame (2) is rotatably connected to the fixed base (1), and the other end is detachably connected to the fixed base (1); an optical cable installation cavity (6) is formed between the U-shaped frame (2) and the fixed base (1); the spring (3), the top semicircular clamping piece (4) and the bottom semicircular clamping piece (5) are all located in the optical cable installation cavity (6); The U-shaped frame (2) is connected to the top semicircular clamping piece (4) via a spring (3); the fixed base (1) is provided with a clamping piece installation groove (101) for installing the bottom semicircular clamping piece (5); the top semicircular clamping piece (4) is located directly above the bottom semicircular clamping piece (5); the two ends of the top semicircular clamping piece (4) are connected to the two ends of the bottom semicircular clamping piece (5) via a buckle; a gasket (7) is provided at the connection between the end faces of the top semicircular clamping piece (4) and the bottom semicircular clamping piece (5); the inner sides of the top semicircular clamping piece (4) and the bottom semicircular clamping piece (5) are both provided with a special-shaped rubber ring (8) which is interference-fitted with the optical cable; the bottom of the special-shaped rubber ring (8) is connected to the inner side of the top semicircular clamping piece (4) or the inner side of the bottom semicircular clamping piece (5); a flexible groove (801) is provided at the top of one side of the special-shaped rubber ring (8).

2. The optical fiber waterproof and sealing interface of an optical cable splice closure according to claim 1, characterized in that, Both ends of the top semicircular clamping piece (4) are provided with claws (401) extending downwards, and both ends of the bottom semicircular clamping piece (5) are provided with snap-fitting matching blocks (501) matching with the claws (401) on both sides.

3. The fiber optic waterproof and sealing interface of an optical cable splice closure according to claim 2, characterized in that, The claw (401) is made of elastic material.

4. The optical fiber waterproof and sealing interface of an optical cable splice closure according to claim 1, characterized in that, The cross-sectional shape of the special-shaped rubber ring (8) is a rectangle as a whole, and one side of the rectangle is concave inwards to form the cross-sectional shape of the flexible groove (801).

5. The optical fiber waterproof and sealing interface of an optical cable splice closure according to claim 4, wherein, The cross-sectional shape of the flexible groove (801) is semicircular or triangular.

6. The optical fiber waterproof and sealing interface of an optical cable joint box according to claim 4, characterized in that, The cross-sectional shape of the special-shaped rubber ring (8) comprises a top horizontal straight line, a right vertical line, a bottom horizontal line, a left vertical line and a left concave arc line which are connected in sequence, wherein one end of the left concave arc line is connected to the left vertical line, and the other end is connected to the top horizontal straight line.

7. The optical fiber waterproof and sealing interface of an optical cable splice closure according to claim 1, characterized in that, One end of the U-shaped frame (2) is rotatably connected to the fixed base (1) via a hinge.

8. The fiber optic waterproof and sealed interface of an optical cable splice closure according to claim 1, characterized in that, The U-shaped frame (2) and the fixed base (1) are both provided with threaded holes at one end, and one end of the U-shaped frame (2) is connected to the fixed base (1) via a bolt passing through the threaded hole.

9. The optical fiber waterproof and sealing interface of an optical cable splice closure according to claim 1, characterized in that, A combination of a plurality of springs (3), a top semicircular clamping piece (4) and a bottom semicircular clamping piece (5) is installed between the U-shaped frame (2) and the fixed base (1).

10. The optical fiber waterproof and sealing interface of an optical cable splice closure according to claim 1, characterized in that, A plurality of special-shaped rubber rings (8) are arranged in the optical cable installation cavity (6) between the top semicircular clamping piece (4) and the bottom semicircular clamping piece (5) along the extension direction of the optical cable installation cavity (6).

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