An optical cable joint box and a sealing structure of an optical fiber unit thereof

Abstract

The present invention discloses a sealing structure of an optical cable joint box and an optical fiber unit thereof, comprising: a sealing sleeve having a through assembly hole section, the assembly hole having a tapered installation hole section, and the diameter of one end close to the clamping member is smaller than the diameter of the other end, the end of the sealing sleeve away from the clamping member is a threaded hole, and the other end has a limiter; an elastic sealing connector having a through hole, the elastic sealing connector and the limiter are restrained against each other; a threaded member is connected to the threaded hole, and the threaded member can squeeze the elastic sealing connector during rotation so that the elastic sealing connector is pressed into the tapered installation hole section and can squeeze the optical fiber unit in the through hole during pressing. The optical fiber unit installed in the through hole is squeezed by the deformation of the elastic sealing connector, so that the optical fiber unit is stably and sealedly installed in the through hole. Since the elastic sealing connector is adjustable by squeezing the threaded member in the present application, the elastic deformation of the elastic sealing connector is adjustable, so that it can be suitable for sealing connection of optical fiber units of different sizes.

Description

Technical Field

[0001] The invention relates to the technical field of power equipment, and in particular to a sealing structure of an optical cable junction box and an optical fiber unit thereof. Background Art

[0002] The optical cable splice box is also called the optical cable splice package, optical cable splice package and barrel, which belongs to the mechanical pressure sealing splice system. The optical cable splice box is an indispensable and important device in the field of communications. The optical cable splice box is a device for wiring and protecting optical cables.

[0003] However, when connecting the existing optical cable to the optical cable joint box, it is only necessary to insert the optical fiber unit inside the optical cable into the joint box. The connection of the existing optical fiber unit is unstable, causing the optical fiber unit to shake, affecting the connection of the optical fiber unit, and only one size of optical fiber unit can be sealed and connected.

[0004] Therefore, how to provide a sealing structure for an optical fiber unit of an optical cable splice box to achieve sealed connection of optical fiber units of different sizes is an urgent problem to be solved by personnel in the field of the technology. Summary of the invention

[0005] In view of this, the present invention provides a sealing structure of an optical fiber unit of an optical cable splice box, which can realize the sealed connection of optical fiber units of different sizes. In addition, the present invention also provides an optical cable splice box having the sealing structure of the optical fiber unit.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A sealing structure of an optical fiber unit of an optical cable splice box, comprising:

[0008] A sealing sleeve, one end of which is connected to a clamping piece for fixing an optical cable, the sealing sleeve having a through assembly hole, the assembly hole having a tapered mounting hole section, and the diameter of the end close to the clamping piece is smaller than the diameter of the end away from the clamping piece, the end of the sealing sleeve away from the clamping piece is a threaded hole, and the end of the tapered mounting hole section close to the clamping piece has a stopper;

[0009] An elastic sealing connector, wherein the elastic sealing connector has a through hole for the optical fiber unit to pass through, and the elastic sealing connector is abutted against the limiting member to limit position;

[0010] A threaded component is threadedly connected to the threaded hole of the sealing sleeve, and the threaded component can squeeze the elastic sealing connector during rotation so that the elastic sealing connector is pressed into the tapered mounting hole section and can squeeze the optical fiber unit in the through hole during press-fitting.

[0011] Preferably, in the sealing structure of the above-mentioned optical fiber unit, the small diameter end of the conical mounting hole section has a first step, and the elastic sealing connector can be limited by the step surface of the first step; the large diameter end of the conical mounting hole section has a second step, and the elastic sealing connector is exposed at the second step.

[0012] Preferably, in the sealing structure of the optical fiber unit, the threaded member is a hollow member through which the optical fiber unit can pass, and the threaded member can be abutted against the step surface of the second stage for limiting position.

[0013] Preferably, in the sealing structure of the optical fiber unit described above, the elastic sealing connector is an elastic rubber component.

[0014] Preferably, in the sealing structure of the optical fiber unit described above, the elastic sealing connector is a conical structure and cooperates with the conical mounting hole section of the sealing sleeve.

[0015] Preferably, in the sealing structure of the optical fiber unit, the elastic sealing connector has three through holes for the optical fiber unit to pass through.

[0016] Preferably, in the sealing structure of the optical fiber unit described above, the other end of the sealing sleeve is detachably inserted into the cable interface on the base of the junction box and sealed and connected.

[0017] An optical cable joint box comprises a sealing structure of an optical fiber unit, wherein the sealing structure of the optical fiber unit is any of the sealing structures of the optical fiber unit described above.

[0018] The present invention provides a sealing structure for an optical fiber unit of an optical cable junction box, wherein a sealing sleeve is used as the installation base of the sealing structure, and the elastic sealing connector is installed in the tapered installation hole section of the sealing sleeve and serves as the installation base for installing the optical fiber unit, that is, the optical fiber unit passes through the through hole of the elastic sealing connector and is squeezed on the inner side of the tapered installation hole section by the elastic deformation of the elastic sealing connector. Due to the deformation of the elastic sealing connector, the optical fiber unit installed in the through hole is squeezed, so that the optical fiber unit is stably and sealedly installed in the through hole, that is, the sealed installation of the optical fiber unit is realized. Since the elastic sealing connector is adjustable by squeezing the threaded member in the present application, the elastic deformation of the elastic sealing connector is adjustable, so that it can be applied to the sealed connection of optical fiber units of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic structural diagram of an elastic sealing connector disclosed in an embodiment of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the sealing structure of the optical fiber unit disclosed in an embodiment of the present invention. DETAILED DESCRIPTION

[0022] The invention discloses a sealing structure of an optical fiber unit of an optical cable joint box, so as to realize the sealed connection of the optical fiber unit and ensure the connection stability of the optical fiber unit. In addition, the invention also discloses an optical cable joint box having the sealing structure of the optical fiber unit.

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] like Figure 1 and Figure 2As shown, the present application discloses a sealing structure of an optical fiber unit of an optical cable junction box, which includes a sealing sleeve 1, an elastic sealing connector 2 and a threaded member 3, wherein one end of the sealing sleeve 1 in the present application is connected to a clamping member for fixing an optical cable, the sealing sleeve 1 has a through assembly hole, the assembly hole has a tapered mounting section, and the diameter of the end close to the clamping member is smaller than the diameter of the end away from the clamping member, the end of the sealing sleeve 1 away from the clamping member is a threaded hole, and the end of the tapered mounting hole section close to the clamping member has a limiter; the above-mentioned elastic sealing connector 2 has a through hole 21 for the optical fiber unit to pass through, and the elastic sealing connector 2 can be pressed into the tapered mounting hole section of the sealing sleeve 1, and the optical fiber unit in the through hole 21 can be squeezed when the elastic sealing connector 2 is pressed, and the elastic sealing connector 2 and the limiter are limited against each other; the above-mentioned threaded member 3 is threadedly matched with the threaded hole of the sealing sleeve 1, and the threaded member 3 can squeeze the elastic sealing connector during rotation. The sealing sleeve 1 is used as the installation base of the sealing structure, and the elastic sealing connector 2 is installed in the tapered installation hole section of the sealing sleeve 1 and serves as the installation base for installing the optical fiber unit, that is, the optical fiber unit passes through the through hole 21 of the elastic sealing connector 2, and is squeezed on the inner side of the tapered installation hole section by the elastic deformation of the elastic sealing connector 2. Due to the deformation of the elastic sealing connector 2, the optical fiber unit installed in the through hole 21 is squeezed, so that the optical fiber unit is stably and sealedly installed in the through hole 21, that is, the sealed installation of the optical fiber unit is achieved. Since the elastic sealing connector 2 is adjustable by squeezing the threaded member 3 in this application, the elastic deformation of the elastic sealing connector 2 is adjustable, so that it can be applied to the sealed connection of optical fiber units of different sizes.

[0025] In a preferred embodiment, the small diameter end of the tapered mounting hole section is the first step, and the elastic sealing connector 2 can be limited by the step surface of the first step, while the large diameter end of the tapered mounting hole section is the second step, and the elastic sealing connector 2 is exposed at the second step. By setting the end of the tapered mounting hole section as a step structure, the elastic sealing connector 2 is limited, preventing the elastic sealing connector 2 from being squeezed into the assembly hole section during the press-fitting process, thereby affecting the sealing of the optical fiber unit.

[0026] Specifically, the threaded member 3 is a hollow member through which the optical fiber unit can pass, and the threaded member 3 can be abutted against the pressure plate 4 on the step surface of the second stage. During the rotation of the threaded member 3, it can abut against the pressure plate 4 on the step surface of the second stage. On the one hand, pressure can be applied to the elastic sealing connector 2 through the pressure plate 4, and on the other hand, it can prevent the threaded member 3 from rotating excessively and causing damage to the elastic sealing connector 2. The threaded member 3 contacts the elastic sealing connector 2 through the pressure plate, which can increase the contact area and ensure that the elastic sealing connector 2 is subjected to balanced force.

[0027] The elastic sealing connector 2 disclosed in the present application is an elastic rubber part. A specific material of the elastic sealing connector 2 is disclosed here. In practice, it can also be a silicone pad. The elastic sealing connector 2 in the present application can be squeezed and deformed during the press-fitting process, and the structure of the squeezed through hole 21 can be any size, for example, it can also be a high-density sponge.

[0028] In a preferred embodiment, the elastic sealing connector 2 is a conical structure and cooperates with the conical mounting hole section of the sealing sleeve 1. The elastic sealing connector 2 is set to a conical structure so as to increase the contact area between the elastic sealing connector 2 and the conical mounting hole section, so that the elastic sealing connector 2 can be limited by the conical mounting hole section of the sealing sleeve 1 during the press-fitting process of the elastic sealing connector 2, so that the elastic sealing connector 2 is deformed inward, that is, toward the through hole 21, to ensure the sealing performance of the elastic sealing connector 2 and the optical fiber unit.

[0029] The elastic sealing connector 2 in the present application has three through holes 21 for the optical fiber units to pass through. The number of the through holes 21 can be set according to the number of the optical fiber units and are all within the protection range.

[0030] In a specific embodiment, the sealing sleeve 1 is a cylinder for sleeved on the outside of the optical cable. The sealing sleeve 1 is detachably inserted into the cable interface on the base of the junction box to achieve the connection between the sealing sleeve 1 and the junction box. In addition to plug-in connection, the sealing sleeve 1 and the cable interface can also be threaded and sealed.

[0031] Specifically, the sealing sleeve 1 has a boss for fitting with the base, and the boss is connected to the base by a threaded part. After the sealing sleeve 1 is inserted into the cable interface, the boss fits with the base of the junction box. At this time, the boss is connected to the base by screws, thereby realizing the connection between the sealing sleeve 1 and the junction box, thereby sealing the optical fiber unit in the junction box.

[0032] In addition, the present application also discloses an optical cable junction box, including a sealing structure of an optical fiber unit, wherein the sealing structure of the optical fiber unit is the sealing structure of the optical fiber unit disclosed in the above-mentioned embodiment. Therefore, the optical cable junction box having the sealing structure of the optical fiber unit also has all the above-mentioned technical effects, which will not be repeated here one by one.

[0033] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0034] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sealing structure for an optical fiber unit of an optical cable splice box, characterized in that: include: A sealing sleeve (1), one end of the sealing sleeve (1) is connected to a clamping piece for fixing an optical cable, the sealing sleeve (1) has a through assembly hole, the assembly hole has a tapered mounting hole section, and the diameter of the end close to the clamping piece is smaller than the diameter of the end away from the clamping piece, the end of the sealing sleeve (1) away from the clamping piece is a threaded hole, and the end of the tapered mounting hole section close to the clamping piece has a stopper; An elastic sealing connector (2), the elastic sealing connector (2) having a through hole (21) for the optical fiber unit to pass through, the elastic sealing connector (2) and the limiting member being abutted against each other for limiting position; a threaded member (3), wherein the threaded member (3) is threadedly connected to the threaded hole of the sealing sleeve (1), and the threaded member (3) can squeeze the elastic sealing connector during rotation so that the elastic sealing connector (2) is press-fitted into the tapered mounting hole section and can squeeze the optical fiber unit in the through hole (21) during press-fitting; The elastic sealing connector (2) is an elastic rubber component; The elastic sealing connector (2) is a conical structure and matches the conical mounting hole of the sealing sleeve (1).

2. The sealing structure of the optical fiber unit according to claim 1, characterized in that: The small diameter end of the conical mounting hole section is the first step, and the elastic sealing connector (2) can be abutted against the step surface of the first step to limit the position; the large diameter end of the conical mounting hole section is the second step, and the elastic sealing connector (2) is exposed outside the second step.

3. The sealing structure of the optical fiber unit according to claim 2, characterized in that: The threaded member (3) is a hollow member through which the optical fiber unit can pass, and the threaded member (3) can be abutted against a pressure plate (4) on the step surface of the second stage to limit position.

4. The sealing structure of the optical fiber unit according to claim 1, characterized in that: The elastic sealing connector (2) has three through holes (21) for the optical fiber units to pass through.

5. The sealing structure of the optical fiber unit according to claim 1, characterized in that: The other end of the sealing sleeve (1) is detachably inserted into the cable interface on the base of the junction box and sealed.

6. An optical cable splice box, comprising a sealing structure of an optical fiber unit, characterized in that: The sealing structure of the optical fiber unit is the sealing structure of the optical fiber unit as claimed in any one of claims 1 to 5.

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