Optical cable splice box

Abstract

The present application is an optical cable joint box, comprising a box cover (1) and a box bottom (2) connected to the box cover (1), wherein the box cover (1) and the box bottom (2) are integrally formed by injection molding, a connecting edge (21) is injection molded between the two, the connecting edge (21) is in the shape of a strip as a whole, and the strip structure is composed of a plurality of sheet-shaped fixing sheets, the fixing sheets comprising a first fixing sheet (21a) and a second fixing sheet (21b) arranged in a staggered strip shape, the box cover (1) and the box bottom (2) are integrally formed by injection molding, and the connecting edge (21) is simultaneously injection molded between the two to achieve an overall connection, which not only saves process steps, but also achieves a higher level of sealing connection between the two, and the connecting edge (21) is composed of staggered strip-shaped fixing sheets, and the staggered structure has the effect of staggered positioning and buffering extrusion when bending.

Description

Technical Field

[0001] The present application relates to the field of optical cable connection, in particular to an optical cable junction box. Background Art

[0002] The fiber optic cable splice box is a popular name for the fiber optic cable splice box, also known as the fiber optic cable splice package, fiber optic cable splice package and barrel. In the manufacture of fiber optic cable splice boxes, separate mold manufacturing methods have always been adopted. After the two are combined, it is impossible to achieve unified sealing and docking, which affects the subsequent use. In particular, the fiber optic cable splice box is mainly used for direct and branch connection positions of various structural optical cables in overhead, pipeline, direct burial and other laying methods, and has a high requirement for the sealing level.

[0003] How to ensure that the box cover and the box bottom in the optical cable junction box are connected while achieving a high sealing level between the two. Summary of the invention

[0004] The purpose of the present application is to connect the box cover and the box bottom of the optical cable joint box as one body, and at the same time ensure the connection and achieve a high level of sealing between the two.

[0005] The purpose of the present application is to achieve the following technical solution: an optical cable joint box, comprising a box cover and a box bottom connected to the box cover, comprising: the box cover and the box bottom are integrally formed by injection molding, and a connecting edge is injection molded between the two, the connecting edge is in a strip shape as a whole, and the strip structure is composed of a plurality of sheet-shaped fixing sheets,

[0006] The fixing plate includes a first fixing plate and a second fixing plate which are arranged in a strip shape and staggered.

[0007] A second fixing sheet is accommodated between two adjacent first fixing sheets, a side edge of the second fixing sheet close to the box bottom is formed with a concave staggered opening, and a convex extrusion strip is formed along the side edge of the second fixing sheet close to the box cover.

[0008] Preferably, a convex strip is protruded from the box cover near the connecting edge, and the convex strip is parallel to the arrangement direction of the connecting edge.

[0009] Preferably, there is one convex strip, which is arranged along the opening of the side edge of the box cover.

[0010] Preferably, a groove is recessed at a position of the box bottom close to the connecting edge, and at least two grooves are provided, and the grooves are parallel to the arrangement direction of the connecting edge.

[0011] Preferably, a leather wire sealing block and an optical cable sealing block are embedded in the side wall of the box bottom;

[0012] An optical cable pressing block is fixed outside the box bottom side wall close to the optical cable sealing block.

[0013] Preferably, an optical cable fixing piece is fixed in the box bottom close to the optical cable sealing block.

[0014] Preferably, a fiber splicing tray is fixed in the middle of the box bottom, and a reinforcing core pressing block is fixed in the box bottom along the outer side of the fiber splicing tray.

[0015] Preferably, a flap is fixed to the box bottom side wall outside the fiber splicing tray, a bracket is fixed between the box bottom side wall and the flap, and the flap is also provided with a sheet-shaped flange plate.

[0016] Preferably, a lock buckle is fixed on the outer side wall of the box bottom, and a protrusion corresponding to the lock buckle is provided on the box cover.

[0017] Preferably, a box body sealing strip is provided around the open mouth of the box bottom, and a self-supporting leather wire and an optical cable are plugged along the side wall of the box bottom.

[0018] Compared with the prior art, this application has at least the following obvious advantages and effects:

[0019] 1. The box cover and the box bottom are integrally formed by injection molding, and the connecting edge is simultaneously injected between the two to achieve overall connection. This not only saves process steps, but also has a higher level of sealing connection between the two. The connecting edge is composed of staggered strip-shaped fixing pieces. The staggered structure has the effect of staggered positioning and buffering extrusion when bending. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is the overall structural layout diagram of this application.

[0021] Figure 2 This application Figure 1 A magnified view of the structure of part A in the middle.

[0022] Figure 3 It is a three-dimensional structural diagram of the leather wire sealing block in this application.

[0023] Figure 4 It is a three-dimensional structural diagram of another leather wire sealing block of the present application.

[0024] Figure 5 It is a three-dimensional structural diagram of the optical cable pressing block in this application.

[0025] Figure 6 It is a three-dimensional structural diagram of the optical cable sealing block in this application.

[0026] Figure 7 It is a three-dimensional structural diagram of the optical cable fixing block in this application.

[0027] Figure 8 It is a three-dimensional structural diagram of the lock in this application.

[0028] Fig. 9 It is a three-dimensional structural diagram of the fiber splicing tray in this application.

[0029] Fig.10 It is a three-dimensional structural diagram of the flap in this application.

[0030] Fig.11 It is a three-dimensional structural diagram of the first side bracket in this application.

[0031] Fig.12 It is a three-dimensional structural diagram of the second side bracket in this application.

[0032] Fig.13 It is a three-dimensional structural diagram of the reinforced core block in this application.

[0033] Fig.14 It is a three-dimensional structural diagram of the box body sealing strip in this application.

[0034] Fig.15 It is a three-dimensional structural diagram of the flange plate in this application.

[0035] Fig.16 This application Figure 4 Exploded view of the mid-sleeve line sealing block.

[0036] Fig.17 It is a three-dimensional schematic diagram of the optical cable sealing member in this application.

[0037] Fig.18 This application Fig.17 Cross-sectional view along the AA direction.

[0038] Fig.19 This application Fig.17 Right side view of the fiber optic cable seal.

[0039] Parts List

[0040]

[0041] DETAILED DESCRIPTION

[0042] Specific embodiments of the present application are described in conjunction with the accompanying drawings and the following description to teach those skilled in the art how to make and use the best mode of the present application. In order to teach the principles of the application, some conventional aspects have been simplified or omitted. Those skilled in the art should understand that variations from these embodiments fall within the scope of the present application. Those skilled in the art should understand that the following features can be combined in various ways to form multiple variations of the present application. Terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this application are only for the convenience of description, and are not intended to limit the scope of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the present invention without substantial changes in the technical content. Therefore, the present application is not limited to the following specific embodiments, but is only limited by the claims and their equivalents.

[0043] Figures 1 to 15 FIG. 2 shows a specific embodiment of the optical cable junction box of the present application.

[0044] Specifically, it should be noted that in the prior art, the connection between the box cover 1 and the box bottom 2 of most optical cable junction boxes is separated. Because of the step-by-step manufacturing method, the molds are opened separately on the same template during the manufacturing process. Although the box cover 1 and the box bottom 2 can be manufactured in one step, after the two are demolded, there is waste between the two and needs to be removed. The box cover 1 and the box bottom 2 in the present application are integrally molded by injection molding. In the synchronous prior art, the waste part is designed as the injection-molded connecting edge 21 between the box cover 1 and the box bottom 2, which not only avoids the process of waste removal, but also sets the structure of the connecting edge 21, which is set as a staggered sheet structure, which can greatly avoid the damage and breakage caused by a single sheet structure, and has a rebound effect, which is more practical and convenient.

[0045] Specifically, in the design, the box cover 1, box bottom 2 and connecting edge 21 in the optical cable junction box are integrally formed by injection molding, and a sheet-shaped groove is set in the mold between the two for injection molding, wherein the connecting edge 21 molded by the sheet-shaped groove is strip-shaped as a whole. In order to overcome the problems caused by the breakage, rebound and extrusion of the injection molding material, the strip structure of the connecting edge 21 is composed of multiple sheet-shaped fixing sheets, and the sheet-shaped structure is used to resist breakage and tearing, buffer rebound, and absorb extrusion. Among them, a regular arc-shaped sheet is used, specifically see Figure 1 and Figure 2 As shown in FIG. 1 , the enlarged fixing sheet includes a first fixing sheet 21 a and a second fixing sheet 21 b which are arranged alternately in a strip shape, wherein the fixing sheet can also be designed as a rectangular sheet.

[0046] By means of injection molding, the box cover 1 and the box bottom 2 are integrally formed, and a connecting edge 21 is simultaneously injection molded between the two to achieve overall connection, which not only saves process steps, but also provides a higher level of sealing connection between the two. The connecting edge 21 is composed of staggered strip-shaped fixing sheets, and the staggered structure has the effect of staggered positioning and buffering extrusion during bending.

[0047] like Figure 1 As shown, in an embodiment of the present application, a connecting edge 21 in an optical cable junction box is strip-shaped as a whole, and the strip structure is composed of a plurality of sheet-shaped fixing plates, and the plurality of fixing plates are combined to form the connecting edge 21, and the fixing plates on the connecting edge 21 are arranged in a strip shape as a whole, and the specific internal structures are staggered, and the staggered arrangement between the structures is specifically that the first fixing plate 21a and the second fixing plate 21b are arranged in sequence, wherein the fixing plate is a rectangular structure, and the second fixing plate 21b is accommodated between two adjacent first fixing plates 21a, and the fixing plates arranged in sequence form an overall continuous structure.

[0048] In the staggered position, a recessed staggered opening 21c is formed on the side of the second fixing piece 21b close to the box bottom 2, and a protruding extrusion strip 21d is formed along the side of the second fixing piece 21b close to the box cover 1. When the box cover 1 and the box bottom 2 are bent and engaged, the staggered opening 21c accommodates the protruding parts on both sides, thereby forming a filling effect, which can avoid the breakage between the structures due to bending, so as to provide an accommodation space. Among them, a protruding extrusion strip 21d is provided on the upper side of the recessed opening, that is, a recessed structure is formed between the two extrusion strips 21d on the upper side.

[0049] It should be further explained that a ridge 1a protrudes from the box cover 1 near the connecting edge 21, and the ridge 1a is parallel to the arrangement direction of the connecting edge 21, ensuring that the extrusion position of the ridge 1a is accommodated along the side position. The ridge 1a is combined with the groove 2a to form a docking sealing structure, which can further improve the sealing effect of the side.

[0050] There is one convex strip 1a, which is arranged in a ring along the opening of the side of the box cover 1. The specific ring arrangement is set according to the open state of the box bottom 2, for example: Figure 1 The middle box bottom 2 is opened in a rectangular shape, and therefore, a convex strip 1a is provided along the rectangular side wall of the box cover 1 to further form a butt-jointed convex strip 1a at the position of the groove 2a.

[0051] It should be noted that the box bottom 2 has a groove 2a sunken downward near the connecting edge 21. To improve the sealing level, multiple grooves 2a may be provided to connect with multiple surrounding convex strips 1a during the process of surrounding convex strips 1a.

[0052] Specifically, the groove 2a is also arranged in a ring shape, and can be arranged to have two, and the single side edge of the groove 2a is arranged in the arrangement direction of the connecting edge 21, similar to parallel. Specifically, the groove 2a is annular and connected to the annular convex strip 1a, and the two form a ring-shaped docking structure with one convex and one concave.

[0053] In this application, combined Figure 1 The middle leather line sealing block 3 is arranged at the side wall of the box bottom 2. Figure 3 , Figure 4 The two structures of the leather wire sealing block 3 are disclosed, wherein: Figure 1 The self-supporting leather wire 13 is sealed between two leather wire sealing blocks 3 and is sealed at the outlet position to ensure that the sealing structure is relatively stable and has a higher level.

[0054] In this application, combined Figure 1 The optical cable sealing block 5 is arranged on the side wall of the box bottom 2, and the optical cable is plugged into the optical cable sealing block 5 to achieve the sealing of the incoming line, wherein, Figure 6 The structure of the optical cable sealing block 5 is disclosed, wherein the conical structure in the middle is used for plugging in the optical cable, and the optical cable can be self-sealed along the conical hole, and sealing is achieved by filling sealant along the conical hole.

[0055] Specifically, a sheath wire sealing block 3 and an optical cable sealing block 5 are embedded in the side wall of the box bottom 2; the sheath wire sealing block 3 for flat wires is pressed and sealed, and the optical cable sealing block 5 for round wires is conically filled and sealed.

[0056] To further assist in fixing and avoid affecting the sealing caused by line movement, the optical cable pressing block 4 is fixed near the optical cable sealing block 5, and the optical cable line is fixed by the optical cable pressing block 4 to avoid affecting the sealing position. The optical cable pressing block 4 fixes the line, and the fixation between the line, the optical cable pressing block 4 and the side wall of the box bottom 2 is more stable. Figure 5 The optical cable pressing block 4 shown is fixedly arranged on the outer side wall of the box bottom 2.

[0057] It should be noted that in the embodiments of the present application, Figure 1 , 7 As shown in the figure, the optical cable fixing piece 6 is a sheet-like structure as a whole. The optical cable fixing piece 6 is fixed in the box bottom 2, and the optical cable fixing piece 6 is close to the box bottom 2 position of the optical cable sealing block 5. The optical cable fixing piece 6 is used to fix the line entering the box body. The optical cable pressing block 4 and the optical cable fixing piece 6 are fixed along the position of the line inlet and the line outlet, so that the line is unified and maintains a stable structure with the box body. Sealant or glass glue is applied at the position of the line inlet and outlet after stabilization, and the sealing is extremely strong and very stable.

[0058] It should be noted that in the embodiments of the present application, Figure 1 ,9 As shown in FIG. 1 , a fiber splicing tray 8 is fixed in the middle of the box bottom 2. Fig. 9 It can be seen that the three-dimensional structure of the fiber splicing tray 8 is that the middle position of the fiber splicing tray 8 is vacant, and the lines are laid on the upper and lower sides, thereby forming a stable supporting and arranging structure.

[0059] Further, combined with Figure 1 , Fig.13 As shown in the specific structure, a reinforcing core block 10 is fixed in the box bottom 2 along the outside of the fiber splicing tray 8, and a screw hole is provided in the middle of the three-dimensional structure of the reinforcing core block 10. The reinforcing core block 10 is fixed through the screw hole, and the auxiliary optical cable is combined with the structure inside the box bottom 2 through the fixed structure, thereby improving the stability of the installation and positioning of the line or auxiliary structure.

[0060] In the embodiments of the present application, Figure 1 , 10 As shown in the figure, a flap 9 is fixed to the side wall of the box bottom 2 near the outer side of the fiber splicing tray 8. The flap 9 is a smooth flat plate, and the line is pressed by the plate body. Brackets are arranged on both sides of the flap 9. Brackets 91 and 92, namely the first side bracket 91 and the second side bracket 92, are arranged on the side of the flap 9. Fig.11 and Fig.12 The structure of the left and right side brackets is shown in three dimensions, wherein the brackets are fixed to the side walls of the box bottom 2.

[0061] To further assist in fixing the optical cable line inside the box, set Fig.15 The flange plate 12 marked in the figure has a sheet-like structure, for example, the flange plate 12 is a rectangular plate-like structure, wherein the structure has multiple holes, and a single line can be arranged through the holes, which is not only neat but also convenient.

[0062] In the embodiments of the present application, Figure 1 , 8 As shown in FIG, a lock buckle 7 is fixed to the outer side wall of the box bottom 2, and a protrusion corresponding to the lock buckle 7 is provided on the box cover 1. Figure 1 The lock buckle 7 is in an angled shape, and has a plurality of card strips and card points inside, which are engaged with the raised position on the top of the box cover 1 by using the card strips or card points, and on the positioning structure of the lock buckle 7, the lock buckle 7 is connected to a steel ring, and the steel ring can achieve a buffering effect of the fixed structure.

[0063] In the embodiments of the present application, Figure 1 , 11 As shown in FIG. 1 , a box body sealing strip 11 is arranged around the open mouth of the box bottom 2. The box body sealing strip 11 can be positioned in the groove 2a to assist the groove 2a in sealing with the convex strip 1a.

[0064] It should be noted that, combined with Figure 1In the box, a self-supporting sheathed wire 13 and an optical cable 14 are plugged in along the side wall of the box bottom 2, wherein the self-supporting sheathed wire 13 is a flat structure, and the optical cable 14 is a cylindrical structure. The above two lines are split inside the box body to achieve welding or docking.

[0065] Specific combination Figure 4 and Fig.16 As shown, the leather wire sealing block 3 is provided with a plurality of groove structures. Figure 1 The flat structure of the self-supporting leather wire 13 is butted, thereby achieving a stable seal. The self-supporting leather wire 13 is flat and composed of multiple branch wires, and one branch wire is butted with one groove. Therefore, the upper surface of the leather wire sealing block 3 is hollowed out with multiple long strip grooves; among which, the bottom surface of a branch wire is arc-shaped, so the cross-sections of the multiple grooves are all U-shaped structures, and a rectangular embedded groove body 36 is provided at the bottom of the multiple grooves, and the whole is embedded in the side wall of the box bottom 2 through the embedded groove body 36 for sealing and fixing.

[0066] The leather wire sealing block 3 is provided with a plurality of grooves, one of which has an access groove 31 at the side of the groove, a sealing groove 32 at the middle of the groove and a delivery groove 33 at the other side of the groove. The access groove 31, the sealing groove 32 and the delivery groove 33 are arranged in a "one" shape to form a butt-jointed sealing groove of a branch line, and a multi-stage sealing structure from inside to outside is formed, which has strong sealing performance. To assist in multi-stage sealing, the sealing structure is separated to form a multi-stage sealing. Specifically, two sealing walls are provided, that is, a block-shaped first sealing wall 34 protrudes between the access groove 31 and the sealing groove 32. A block-shaped second sealing wall 35 protrudes between the sealing groove 32 and the delivery groove 323.

[0067] In order to assist in the simple manufacture of the box bottom 2 and to assist in embedding the leather wire sealing block 3 into the side wall of the box bottom 2 and to facilitate the application of glue during embedding, chamfers 361 with arc-shaped cross-sections are respectively provided at the bottom ends of both sides of the embedding groove 36. The chamfers 361 are used to assist in positioning and to fill the sealant to flow to the surface of the embedding groove 36.

[0068] Specific combination Figure 6 and Fig.17 , Fig.18 , Fig.19 As shown, the optical cable sealing block 5, in a further improvement of the optical cable sealing block 5,

[0069] The optical cable sealing block 5 is provided with a truncated cone-shaped cone sleeve 53, which is used for adaptive sealing of the optical cable L. In order to assist in fixing, the cone sleeve 53 can be filled with sealant for further sealing after fixing, so a hollow truncated cone-shaped adaptation groove 55 is provided inside the cone sleeve 53, and sealant is filled along the adaptation groove 55. In order to ensure that the optical cable L can be installed in the cone of the adaptation groove 55, the cone has an outer diameter a and an inner diameter b; wherein, the diameter c of the optical cable is smaller than the outer diameter a of the cone and larger than the inner diameter b of the cone.

[0070] The optical cable sealing block 5 also has an optical cable opening 34 connected to the adapting groove 55. The optical cable opening 34 is larger than the diameter of the optical cable and is used to position the optical cable and fill the position with glue for sealing, thereby assisting in enhancing the sealing level.

[0071] Among them, an annular sealing ring 52 is provided on the outer side of the optical cable port 54, and a rectangular sealing block 51 extends outward from the sealing ring 52. The sealing ring 52 and the sealing block 51 form an embedded structure of the box bottom 2, which is embedded in the side wall to form the side wall of the box bottom 2, and is coated with glue for sealing and fixing when embedded.

[0072] The sealing block 51 is a solid rectangular structure, with a long box cover groove 511 running through the top. The box cover groove 511 is mainly used to install the box body sealing strip 11 to assist the box body sealing strip 11 and the side of the box cover 1 in positioning and sealing.

[0073] Since it is easy for those skilled in the art to think of it, any modification, equivalent substitution, improvement, etc. made within the concept and principle of the application should be included in the scope of the claims of this application.

Claims

1. An optical cable splice box, comprising a box cover (1) and a box bottom (2) connected to the box cover (1), characterized in that: include: The box cover (1) and the box bottom (2) are integrally formed by injection molding, and a connecting edge (21) is injection molded between the two. The connecting edge (21) is in the shape of a strip as a whole, and the strip structure is composed of a plurality of sheet-shaped fixing plates. The fixing plates include first fixing plates (21a) and second fixing plates (21b) arranged in a strip-shaped staggered manner. The second fixing plate (21b) is accommodated between two adjacent first fixing plates (21a). The side edge of the second fixing plate (21b) close to the box bottom (2) is formed with a recessed staggered opening (21c), and the side edge of the second fixing plate (21b) close to the box cover (1) is formed with a protruding extrusion strip (21d).

2. The optical cable splice box according to claim 1, characterized in that: The box cover (1) has a convex strip (1a) protruding from a position close to the connecting edge (21), and the convex strip (1a) is arranged in a direction parallel to the connecting edge (21).

3. The optical cable splice box according to claim 2, characterized in that: The convex strip (1a) is provided with one convex strip (1a), and the convex strip (1a) is arranged along the opening of the side edge of the box cover (1).

4. The optical cable splice box according to claim 1, characterized in that: The box bottom (2) is provided with a groove (2a) at a position close to the connecting edge (21), and at least two grooves (2a) are provided. The arrangement direction of the grooves (2a) is parallel to the connecting edge (21).

5. The optical cable splice box according to claim 1, characterized in that: A sheath wire sealing block (3) and an optical cable sealing block (5) are embedded in the side wall of the box bottom (2); and an optical cable pressing block (4) is fixed outside the side wall of the box bottom (2) near the optical cable sealing block (5).

6. The optical cable splice box according to claim 2, characterized in that: An optical cable fixing piece (6) is fixed inside the box bottom (2) close to the optical cable sealing block (5).

7. The optical cable splice box according to claim 1, characterized in that: A fiber splicing tray (8) is fixed in the middle of the box bottom (2), and a reinforcing core pressing block (10) is fixed in the box bottom (2) along the outside of the fiber splicing tray (8).

8. The optical cable splice box according to claim 7, characterized in that: A flap (9) is fixed to the side wall of the box bottom (2) outside the fiber splicing tray (8), a bracket (91, 92) is fixed between the side wall of the box bottom (2) and the flap (9), and the flap (9) is also provided with a sheet-shaped flange plate (12).

9. The optical cable splice box according to claim 1, characterized in that: A lock buckle (7) is also fixed on the outer side wall of the box bottom (2), and a protrusion corresponding to the lock buckle (7) is provided on the box cover (1).

10. The optical cable splice box according to claim 1, characterized in that: A box body sealing strip (11) is arranged around the open mouth of the box bottom (2), and a self-supporting sheathed wire (13) and an optical cable (14) are plugged into the side wall of the box bottom (2).

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