TWI480612B - A fiber optic cable connection with a watertight auxiliary device - Google Patents

Description

Optical cable terminal shell with joint waterproofing auxiliary device

The invention relates to a cable connecting shell with a joint waterproofing auxiliary device, in particular to an optical cable connecting shell capable of adopting an elastic shrink tube for waterproof treatment in the middle of the introduction of the diverging and connecting optical cable, so that the waterproof processing and operation method of the connecting shell lead optical cable Unification can not only improve construction quality and construction safety, but also significantly reduce the cost of maintenance.

In the technical fields of various wired transmission industries such as telecommunications, cable television, and surveillance systems, optical cables have been used to transmit voice, data, and video messages on a large scale, and optical cables have been transmitted to various optical cables. Continuation and branching work. The cable connection shells are all provided with cable entry and exit end faces, and the cable entry and exit end faces are provided with cable inlet and outlet for the connection of the optical cables into the terminal housing for connection and branching operations.

In the past, most of the optical cables were used for trunk trunks. The optical cable terminal shells were connected by direct connection (the operation of connecting one cut-off optical cable to another optical fiber cable of the same core number) and the divergence (more than one) The fiber optic cable of the core fiber is distributed into the connection operation of the divergent fiber optic cable with several fewer core fibers. Nowadays, the communication network has entered the era of broadband service of the fiber to the FTTH. A large number of optical fibers must be allocated to the user by using the optical cable terminal shell. The opticalizing device of the end; therefore, in addition to the linear connection and the divergent connection of the optical cable, the optical cable terminal housing must also be suitable for a large number of optical cables to be connected to the downstream connection operation (a trunk optical cable with more core fibers, after the cable passes In the middle of the process, when the user needs the fiber service, a small cable is used to connect a small portion of the unused fiber to another divergent cable, and then connected to the new user, and most of the fiber of the trunk cable is used. The core wire, especially the fiber core wire that has been used by other customers, cannot be cut off.

In the prior art, the cable connecting shell has three kinds of mechanical and heat-shrinkable and elastic shrinkable tube modes for the cable to enter and exit the end face for linear connection and the differential connection of the optical cable into the terminal shell. Among them, the mechanical parts are complicated and the cost is high; while the heat-shrinking type has low cost, but the construction must be hot, the construction quality is difficult to be consistent, and it is easy to be affected by the bending and twisting of the cable, which is suitable for the waterproofing effect and is suitable for the environment of overhead and wall hanging. It is not suitable for the use of underground optical cables in the hole of people who have accumulated water for many years. The construction of elastic shrinkage tube method is the easiest, the construction quality is consistent, the waterproof effect is good, and the cost of materials is low. Therefore, it is the best choice for the industry to use the elastic shrink tube method for the linear connection and the waterproof treatment of the divergent cable.

The elastic shrinkable tube is made of an elastomer with high elongation and Tensile Strength and a good elastic recovery rate. The elastic shrink tube is lined with a plastic threaded tube that can be stripped. The large-diameter, elastic-shrinkable tube waterproofing method is a part of the elastic shrinking tube that is to be supported by the large-aperture, and is placed on the outside of the hollow pipe string for the cable to enter and exit the cable entrance and exit end, and the other part is The optical cable is connected to the outer end of the hollow tubular string through the hollow tubular string. After the hard plastic threaded tubular lining the elastic shrinkable tubular wall is removed, the elastic shrinkable tube is restored to be smaller than before being supported by the large aperture. The aperture, which is smaller than the outer diameter of the hollow tube and the outer diameter of the cable, the elastic shrink tube is tightly wrapped around the hollow tube column and passes through the hollow tube by the radial contraction force of the elastic shrink tube The fiber optic cable that connects the column to the outer end of the hollow tubular string forms a tight waterproof structure.

However, in the prior art, the cable connection housing, the cable entry and exit end face can be used for the waterproof treatment of the divergent connection cable to the terminal housing, and only the mechanical type and the heat shrink type. In the existing technology, the reason why the differentially-connected optical cable cannot be waterproofed by the elastic shrinkage tube method in the middle is because the optical cable that is intended to be connected in the middle of the diverging connection must be in the form of a double optical cable without cutting the optical fiber core. a cable passing through the cable connector housing enters and exits the cable inlet and outlet, enters the terminal housing for connection and branching operation, and after the elastic shrink tube shrinks, it is difficult to tightly cover the recessed gap formed between the two optical cables Therefore, it is impossible to achieve the waterproof effect; in addition, the bending of the optical fiber has certain technical standards. Generally, the optical fiber of the external optical cable has a radius of curvature of 3 cm (the diameter is 6 cm), so the cable entry and exit end faces are suitable for diverging in the middle. The diameter of the hollow pipe string that enters and exits the cable in the form of two cables, the inner diameter of the longer side, the requirements of the general telecommunications industry are more than 6 cm, and the diameter of the general cable is only 1.5 to 2 cm, so large. The drop is also not suitable for waterproofing with an elastic shrink tube. Therefore, in the prior art cable connector housing, only the optical cable with straight connection and different connection can be waterproofed by the elastic shrink tube method, and the optical cable with different connection in the middle must be waterproofed by heat shrinking or mechanical.

Therefore, if the optical cable terminal housing in the prior art can be improved, the differential cable can be connected in the middle of the hollow tube string passing through the cable in and out of the end surface in the form of a double cable, and the elastic shrink tube can also be used for waterproof treatment, so that the wiring is made. The waterproof treatment and operation method of the shell lead cable can not only improve the construction quality and construction safety, but also greatly reduce the cost of the operator's maintenance.

For the sake of his position, the inventor of the present case, based on the lack of knowledge in the prior art, was carefully researched and explored, and the spirit of perseverance was finally conceived in the case of "a cable connector with a joint waterproofing aid". The following is a brief description of the case.

In order to overcome the deficiencies of the prior art, an object of the present invention is to provide a cable connector housing having a caulking waterproof auxiliary device, the wiring housing including at least one cable entry and exit end face, and the at least one cable entry and exit end surface is formed with at least one first The hollow pipe string can be used for the cable which is to be subjected to the waterproofing treatment by the elastic shrink pipe in the middle of the diverging operation, and the wire is passed through the at least one wire after the bending, without cutting the fiber core wire. a hollow tubular string entering and exiting the terminal housing; and at least one sealing waterproof auxiliary device, and the at least one sealing waterproof auxiliary device can pass through the at least one first hollow tubular string in a form of a double optical cable Entering the terminal housing to combine the optical cables for the diverging operation in the middle, and forming a first waterproof structure at the place where the at least one sealing waterproof auxiliary device is to be covered by the elastic shrink tube; and at least one elastic shrink tube, and The at least one elastic shrink tube is configured to be wrapped around the outer portion of the at least one first hollow tubular string and a portion of the at least one joint waterproofing auxiliary device to form The second waterproof structure. The purpose of using the caulking waterproof auxiliary device is to connect the cable of the cable to the end face of the cable to the end of the cable in the form of a double optical cable because the fiber optic cable is connected in the middle of the fiber. The exit enters the terminal housing for connection and branching operation, and the gap between the two optical cables must first form an elliptical cylinder or a circular cylinder such as a non-recessed gap by means of a caulking waterproof auxiliary device. Waterproof structure for waterproof treatment with elastic shrink tube.

Furthermore, the optical cable connector housing of the present invention further includes the at least one seam sealing waterproofing device comprising a cable tight shell selected from the group, a tightening screw, a viscous and plastic waterproof glue, and an elastomer waterproof gasket. One of the groups consisting of its combination.

Furthermore, the optical cable connector housing of the present invention further includes at least one cable entry and exit end surface formed with at least one second hollow tubular string for the optical cable to be subjected to linear connection and differential connection operation to pass through the wiring housing.

Furthermore, the optical cable connector housing of the present invention, further comprising the at least one second hollow tubular string, may be wrapped by an elastic shrink tube to be wrapped on the outside of the at least one second hollow tubular string and also wrapped around The second hollow tubular string enters the terminal housing and is connected to a portion of the cable at the outer end of the second hollow tubular string to form a waterproof structure. Since the optical cable of the straight line connection and the branching operation is cut off and passed through the second hollow pipe string in the case of cutting off the fiber core wire, the cable case is used for waterproofing of the cable, and the cable is not required to be used. Filling waterproofing aids.

Furthermore, the optical cable connector housing of the present invention further includes at least one first fixing device inside the wiring housing, and the at least one first fixing device includes a tight beam ring, a tight band, a tight beam clamp, and a combination thereof. One of the group of components is fixed to the at least one first fixing device outside the cable that introduces the wiring case.

Furthermore, the optical cable terminal housing of the present invention further includes at least one optical fiber receiving disk bracket inside the wiring housing, and the at least one cable entering and leaving the end surface for the entrance and exit of the trunk optical cable is disposed in the trunk optical cable. The linear stroke behind the wiring housing is not blocked or interfered by the optical fiber receiving tray on the at least one optical fiber receiving tray holder. Therefore, it is possible to avoid the cable connector housing having a small internal space. After the trunk cable enters the terminal housing, it is blocked and interfered by the optical fiber storage tray and must be bent immediately, resulting in poor transmission quality.

Furthermore, the optical cable terminal housing of the present invention further includes a position of the at least one cable entry and exit end for the straight-line connection and the branching and exiting of the optical fiber cable passing through the entrance and exit, and is disposed in a linear stroke after the optical cable enters the wiring housing, and does not A position blocked and interfered by the optical fiber receiving tray on the at least one optical fiber receiving tray holder.

Furthermore, the optical cable connector housing of the present invention further includes at least one second fixing device inside the wiring housing for fixing at least one optical fiber receiving disk holder, and the at least one second fixing device can cooperate with the at least one cable to enter and exit The end face is different for the position of the entrance and exit of the trunk cable, and the at least one fiber receiving disk bracket is fixed at different positions. Since the trunk cable has a certain mode and technical requirements for the fixing, receiving, arranging, and the like of the optical fiber accommodating tray bracket, the position of the cable inlet and outlet is not suitable for arbitrarily changing, but if necessary, In order to obtain the best benefit of the main fiber optic cable inlet and outlet; therefore, the second fixing device is arranged in the cable connecting shell of the invention, and the main cable can be selected for different cable inlet and outlet on the end face of the cable when necessary. The wiring shell, and the fixing, accommodating and arranging related to the fiber accommodating disc bracket can still operate according to the predetermined technical mode, so as to reduce the adverse effects caused by changing the import and export of the main optical cable, thereby improving the entry and exit of the cable. The application scope of cable import and export and ensure the technical quality of related operations.

Furthermore, the optical cable connector housing of the present invention further includes the first hollow tubular string and the second hollow tubular string, and a heat shrinkable tube and a cable that enters the terminal housing through the hollow tubular string may also be used. A waterproof structure is formed between them.

The present invention provides a cable terminal housing comprising: a cable entry and exit end face; a first hollow pipe string disposed on the cable entry and exit end face for a cable crossing in the middle of the diverging connection operation The cable passes through the first hollow tubular string in a hairpin shape; and a joint waterproofing aid covers the cable in the shape of the hairpin to form a first waterproof structure.

The present invention further provides a cable terminal housing comprising: a cable entry and exit end face, the cable entry and exit end surface includes a first hollow pipe string; and a cable passing through the first hollow pipe column in a curved manner a joint waterproofing auxiliary device covering the twisted cable to form a first waterproof structure; and an elastic shrinking tube for covering and covering the outer portion of the first hollow tubular string and the first The cable of a waterproof structure forms a second waterproof structure.

The "cable terminal block with a joint waterproofing device" as set forth in the present application will be fully understood by the following examples, so that those skilled in the art can do so. However, the implementation of the present invention is not exemplified by the following examples. Other embodiments may be devised by those skilled in the art, and the embodiments are intended to be within the scope of the invention.

Example 1

Please refer to FIG. 1(A) to FIG. 1(E), which are schematic diagrams of a cable terminal housing 1 with a joint waterproofing auxiliary device used in the first embodiment of the present invention, which has a cable entry and exit end face 2, the cable The inlet and outlet end faces 2 are formed with a first hollow tubular string 3 (Fig. 1(A)), the wiring shell also has a joint waterproofing auxiliary device and an elastic shrinking tube 4, and the joint sealing waterproofing device comprises two semicircles A cable tight-fitting housing 401 for receiving a double cable groove, a tightening screw 402, a double-mask adhesive and plastic waterproof tape 403, and a single-mask adhesive elastomer waterproof tape 404 (Fig. 1(B) ). When the optical fiber cable 5 that is to be connected to the downstream connection operation is about to be cut, in the case where the optical fiber core wire 6 is not cut off, after the bending, the first hollow tubular string 3 which is prepared to pass through the cable entry and exit end face 2 in the form of a double optical cable enters the In the case of the wiring case 1, the waterproofing operation is performed by laying a double-mask adhesive and plastic waterproof tape 403 therein on a side of a semi-circular cable tight-fitting housing 401 having a groove for accommodating a double cable. And wrapping the double-mask adhesive and plastic waterproof tape 403 in the middle of the diverging and connecting the optical fiber cable 5 in the form of a double optical cable to be combined with the cable tight casing 401, and then tightening the screw 402 The two semi-circular cable tight-fitting housings 401 are locked to form a cylindrical waterproof structure, and then the outer joints of the two semi-circular cable-tight housings 401 are removed and squeezed out due to the locking. After the excess residual double-mask adhesive and plastic waterproof tape 403, a single-mask adhesive elastomer waterproof tape 404 is wound around the outer side of the two semi-circular cable tight casings 401 which have formed a cylindrical shape. And the double optical cable 5 is formed between the cable tight housing 401 a first waterproof structure (Fig. 1 (C)); the elastic shrinkable tube 4 is placed in the optical cable 5 which has been formed into the first waterproof structure and is about to be diverted to the downstream to prepare for waterproofing with the elastic shrinkable tube 4, Then, the optical cable 5 having formed the first waterproof structure is inserted into the terminal housing 1 through the first hollow tubular string 3 in the form of a double optical cable without bending the optical fiber core wire 6 and fixed, and then elasticized. The shrinkable tube 4 is bundled and wrapped around the outer portion of the first hollow tubular string 3 and the first waterproof structure does not penetrate the cylindrical column of the first hollow tubular string 3 to form a second waterproof structure (Fig. 1 (D) )), that is, the waterproof processing operation between the branching cable 5 and the cable entry/exit end face 2 is completed in the middle (Fig. 1(E)).

Please refer to FIG. 2 , which is a schematic diagram of the cable entry and exit end face 2 of the cable terminal housing 1 with the joint waterproofing auxiliary device used in the first embodiment of the present invention, and the cable inlet and outlet end faces 2 are further formed with a second hollow tubular string 7 . The optical cable 8 for the straight line connection and the branching operation can be passed through and out of the terminal housing 1, and the second hollow tube column 7 can also be bundled and covered by the elastic shrink tube 4 to the second hollow tube column. 7 is externally and simultaneously wrapped around a portion of the cable 8 that enters the terminal housing 1 through the second hollow tubular string 7 and engages the outer end of the second hollow tubular string 7 to form a waterproof structure (second Figure). When the outer diameter of the second hollow column 7 and the cable 8 is small or scratched, a single-mask adhesive elastic waterproof tape 404 may be wound to expand the outer diameter to fit the elastic shrinkable tube 4 The cover is covered with a waterproof size and fills the scratches.

Please refer to FIG. 3 , which is a schematic view of the inside of the cable terminal housing 1 with a joint waterproofing auxiliary device used in the first embodiment of the present invention. The first housing device 9 is further disposed inside the terminal housing 1 , and the first fixing device is provided. The 9 series is made of a stainless steel tight band 10, and the optical cable 8 to which the wiring case 1 is introduced is fixed to the first fixing device 9.

Please refer to FIG. 4 , which is a schematic view of the inside of the optical cable terminal housing 1 with a joint waterproofing auxiliary device used in the first embodiment of the present invention. The wiring housing 1 is further provided with a fiber receiving tray bracket 11 , and the cable enters and exits the end surface. The position of the first hollow tubular string 3 for the entrance and exit of the trunk cable is set in a linear stroke after the trunk cable 5 enters the wiring shell 1, and is not received by the optical fiber receiving tray on the optical fiber receiving tray bracket 11. a position of blocking and interfering; and a second fixing device 13 is disposed inside the wiring case 1 for fixing the fiber receiving tray holder 11, and the second fixing device 13 can cooperate with the cable in and out end face 2 for diverging in the middle. The contiguous trunk cable 5 or the cable entrance and exit 501 through which the linear trunk cable 501 passes is different, and the fiber accommodating tray bracket 11 is fixed at different positions (Fig. 4). In addition, in the optical cable junction housing 1 with the joint waterproofing auxiliary device used in the first embodiment of the present invention, the second hollow tubular string 7 of the cable entry and exit end face 2 is used for the straight-through and the intermittently connected optical cable 8 to pass through the inlet and outlet. The position is also set in a linear stroke after the optical cable 7 enters the wiring case 1, and is not blocked or interfered by the optical fiber receiving tray 12 on the optical fiber receiving tray holder 11 (Fig. 3).

According to the description of the first embodiment, the optical cable terminal housing with the joint waterproofing auxiliary device overcomes the defects of the prior art, such as insufficient function, high cost, different construction quality and construction safety, and is unified. The equipment and operation methods have greatly improved the construction quality and greatly reduced the cost of transportation for related operators.

This case has been modified by people who are familiar with this skill, but it is not to be protected as intended.

Figure 1 (A) ~ (E)

1. . . Cable connector housing

2. . . Cable entry and exit end

3. . . First hollow column

4. . . Flexible shrink tube

401. . . Cable tight casing

402. . . Tightening screw

403. . . Double mask viscous and plastic waterproof tape

404. . . Single mask viscous elastomer waterproof tape

5. . . Diverted cable

6. . . Optical fiber core

Figure 2

2. . . Cable entry and exit end

3. . . First hollow column

4. . . Flexible shrink tube

7. . . Second hollow column

8. . . Straight line and divergent cable

Figure 3

1. . . Cable connector housing

2. . . Cable entry and exit end

3. . . First hollow column

7. . . Second hollow column

8. . . Straight line and divergent cable

9. . . First fixture

10. . . Stainless steel tight collar

11. . . Fiber storage tray bracket

12. . . Optical fiber storage tray

Figure 4

1. . . Cable connector housing

2. . . Cable entry and exit end

3. . . First hollow column

5. . . Diverted cable

501. . . Straight line backbone cable

6. . . Optical fiber core

7. . . Second hollow column

11. . . Fiber storage tray bracket

12. . . Optical fiber storage tray

13. . . Second fixture

1(A) to (E) are schematic diagrams showing a fiber optic cable connection housing with a caulking waterproof auxiliary device according to Embodiment 1 of the present invention, and a schematic view of components of the elastic shrink tube and the caulking waterproof auxiliary device, and waterproofing treatment thereof. Operation diagram.

Fig. 2 is a schematic view showing the cable inlet and outlet end faces of the cable terminal housing with a joint waterproofing device according to the first embodiment of the present invention, in which four second hollow tubular columns are formed by elastic shrinkage tubes for waterproof treatment.

FIG. 3 is a schematic view showing the first fixing device disposed inside the cable connecting shell of the joint waterproofing auxiliary device according to Embodiment 1 of the present invention.

Fig. 4 is a schematic view showing the second fixing device inside the cable connecting shell of the joint waterproofing auxiliary device of the first embodiment of the present invention.

2. . . Cable entry and exit end

3. . . First hollow column

4. . . Connection

5. . . Diverted cable

6. . . Optical fiber core

401. . . Cable tight casing

404. . . Single mask viscous elastomer waterproof tape

Claims (11)

An optical cable terminal housing with a joint waterproofing auxiliary device, the wiring housing comprising: at least one cable entry and exit end face, and the at least one cable entry and exit end surface is formed with at least one first hollow tubular string for being used for midway diversion and subsequent connection The optical cable for preparing the water-repellent treatment by the elastic shrinkage tube, in the case of not cutting the optical fiber core, after the bending, passes through the at least one first hollow tubular string in the form of two optical cables, and enters and exits the terminal housing; a caulking waterproof auxiliary device, and the at least one caulking waterproof auxiliary device can be connected to the optical cable phase which is to be connected to the terminal housing through the at least one first hollow tubular string and enters the terminal housing in the form of two optical cables Combining and forming a first waterproof structure at a position where the at least one caulking waterproofing device is to be covered by the elastic shrink tube, the at least one caulking waterproof auxiliary device is to be covered by the elastic shrink tube without any depression And at least one elastic shrink tube, and the at least one elastic shrink tube is adapted to be wrapped around the outer portion of the at least one first hollow tubular string and the at least one joint waterproofing auxiliary A portion of the device, forming a second waterproof structure. The optical cable terminal housing according to claim 1, wherein the at least one sealing waterproof auxiliary device comprises a waterproof glue selected from the group consisting of a cable tight shell, a tightening screw, a viscous and plasticity, and an elastomer. One of a group of waterproof pads and combinations thereof. The optical cable terminal housing according to claim 1, wherein the at least one cable entry and exit end surface is further formed with at least one second hollow tubular string for the optical cable to be subjected to linear connection and differential connection operation, and the cable is inserted into and out of the cable. Wiring housing. The optical cable junction housing of claim 3, wherein the at least one second hollow tubular string can be wrapped by an elastic shrink tube and wrapped on the outside of the at least one second hollow tubular string Passing through the second hollow column to enter the terminal housing A portion of the cable at the outer end of the second hollow tubular string forms a waterproof structure. The cable connector housing of claim 4, further comprising at least one first fixing device inside the wiring housing, wherein the at least one first fixing device comprises a tight binding ring, a tight band, and a tight binding device. One of the groups consisting of the combination is fixed to the at least one first fixing device outside the cable into which the wiring housing is introduced. The optical cable terminal housing according to claim 5, further comprising at least one optical fiber receiving disk bracket inside the wiring housing, wherein the at least one cable entering and leaving the end surface for the main fiber cable to pass through the inlet and outlet is provided at The linear travel of the trunk cable into the wiring case is not blocked or interfered by the fiber receiving disk on the at least one fiber receiving disk holder. The optical cable terminal housing according to claim 6, further comprising a position of the at least one cable entry and exit end for the straight-line connection and the branching and exiting of the optical cable passing through the entrance and exit, and is disposed on a straight line after the optical cable enters the wiring housing. The stroke is not blocked or interfered by the fiber receiving tray on the at least one fiber receiving tray holder. The cable connector housing of claim 7, further comprising at least one second fixing device for fixing at least one fiber receiving disk holder, and the at least one second fixing device can cooperate with the at least one second fixing device A cable entry and exit end is different for the position of the entrance and exit of the trunk cable, and the at least one fiber storage tray bracket is fixed at different positions. The optical cable junction housing of claim 8, wherein the first hollow tubular string and the second hollow tubular string may also adopt a heat shrinkable tube and enter the wiring shell through the hollow tubular string. A waterproof structure is formed between the cables. A cable terminal housing includes: a cable entry and exit end face; a first hollow pipe string disposed on the cable entry and exit end face for traversing a cable connecting the diverging operation in the middle, wherein The cable is in the shape of a hairpin Passing through the first hollow pipe column; and a joint waterproofing auxiliary device, the surface of the joint waterproofing auxiliary device does not have any recessed portion, and covers the cable in the shape of the hairpin to form a first waterproof structure . A cable terminal housing includes: a cable entry and exit end face, the cable entry and exit end face includes a first hollow pipe string; a cable is bent through the first hollow pipe column; a caulking a waterproof auxiliary device, the surface of the joint waterproofing auxiliary device does not have any recessed portion, and covers the twisted cable to form a first waterproof structure; and an elastic shrink tube for covering and covering the first The outer portion of a hollow tubular string and the cable of the first waterproof structure form a second waterproof structure.