TW508888B - Multiple chanel duct assembly for cables - Google Patents

Abstract

The multiple channel duct assembly for cables comprises (a) a plurality of plastic inner ducts contiguous, co-directionally extending, substantially parallel, in abutting contact with each other, each of said inner ducts having the cross sectional areas sufficient to contain at least one cable; and (b) a plastic outer duct encircling said inner ducts over their entire length to retain them in their contiguous relationship; (c) wherein said outer duct has a corrugated tubular section including a plurality of contiguous ridges and troughs extending over the entire length; (d) whereby said assembly is so flexible that it can be coiled around transportable reels as well as so strong that it can withstand dirt in a trench. The duct assembly allows an overall reduction in cable installation costs, and the manifolding aspect of the present invention maintains high structural integrity over the entire length of the conduit sections, and affords enhanced moisture protection to the entire system by reason of the outer duct which is corrugated and incessantly extended. The aspect of inner ducts of plastic with less friction provides sufficiently smooth inside surfaces to the inner ducts, through which fiber optic cables, electric wires or the likes are inserted.

Description

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BACKGROUND OF THE INVENTION I. Technical field to which the present invention belongs. The present invention relates to a conduit for accommodating underground light networks, such as private light, wearing wires, or the like. More specifically, the present invention relates to a multi-channel catheter assembly for electric winding, which includes a plurality of mutually adjacent catheters', which are used to accommodate long-distance optical fibers, electric wires, or the like. II. Known technical description In the ground network industry, 'properly ignoring and arranging fiber optic cables or wires is indispensable for maintaining the integrity of the information or power transmitted by the cables. . The heart is weak due to the texture of the optical fiber and the wire itself, so it needs to be protected from sources of stress (such as temperature, pressure, and pollutants). In response to this, most of the improvement methods in the 'Tingxiang Industry' are to design a reliable combination of coverings to cover optical fibers and wires. The following is a brief discussion of a method for setting up fiber optic cables. U.S. Patent No. 4,741,593 discloses a multi-channel catheter having a plurality of corrugated inner catheters, which are substantially adjacent to each other in parallel, extend in the same direction, and are in close contact with each other. Each inner catheter has a series of continuously rotating convolutions from head to tail, forming continuous bulges and depressions; and an overwrap sheath made of elastic, synthetic resin, which has a thickness of about 5 mil to 15 mil polyethylene gas sheath (sheath), which covers and seals the entire section of the corrugated inner catheter to maintain the space between the inner catheters Adjacent relationship.

508888 V. Description of the invention (2) The type of multi-channel catheter mentioned in the above reference case is flexible and can be coiled on a relatively large coil. A considerable length of the above-mentioned multi-channel conduit is wound on the above-mentioned reel, which can be laid into underground communication ducts or placed in trenches for direct burial. This type of multi-channel conduit can comprehensively reduce the installation cost of fiber optic cables, and many of the characteristics of the above-mentioned system can also maintain the integrity of the overall structure of the above-mentioned conduit ', while the covering of the sheath provides the above-mentioned system with stronger soil protection.导管 Cable ducts for optical fiber, electrical and the like are the most required characteristics. Today, I have not seen the above-mentioned multi-channel catheters sold in the cable market. The original title 'I believe that the above-mentioned multi-channel catheters have several key defects in terms of actual degree and flexibility, but the invention was not noticed at first. -A well-known lack of plastic inner catheters with small diameters (even for non-twisting feet, the flexibility of: makes it possible to be coiled on a transportable winding reel, described: The plastic outer catheter with a relatively large diameter has no flexibility so that it can be coiled on a transportable reel. ° The above-mentioned multi-channel catheters include complex corrugated and non-corrugated plastic The external catheter and the internal and external eunuchs of the multi-channel catheter are not enough to understand the above two disks. I believe that this defect is the above-mentioned multi-channel; guide; = one of the reasons appear in the cable catheter market. n V g can not be installed in the US Patent No. 5,02,7,64 6 song-μM electric winding. The above-mentioned reference Wv; the species is used: common fiber optic tea can include the use of a hollow outer catheter, the Lord

508888 V. Description of the invention (3) It shall be made of polyvinyl chloride (PVC), forty feet long, to form the first layer to block underground matter. The outer conduit described above is used as a conduit, through which a number of smaller, long-distance (mainly made of polyethylene) pipelines (or "inner conduits") can pass, providing a second layer of barrier to underground matter. The above pipelines are individually provided with some longitudinally extending ribs (r i b) on the outside, and the above smaller pipelines are individually provided with one or more optical fiber cables. The method of installing the above-mentioned cables first needs to introduce the above-mentioned inner conduit into the above-mentioned outer conduit. The method is to use a spool on the ground surface to pull the inner guide into the outer conduit. In a work area located underground, a jig is set at one end of the inner pipe, and then the inner pipe is dragged until the entire section enters the outer pipe. After the inner tube is installed, it is convenient to use a tow rope (by blowing it through the inner tube fiber cable into the inner tube. The result constitutes an assembly: including a number of inner tubes, individual / or multiple optical fiber cables, and A protective outer duct is provided to surround the above-mentioned duct. A rib is provided on the periphery of the inner duct to facilitate installation; and it is convenient to remove the above-mentioned inner guide in language A for installation and maintenance, and The method of covering the optical fiber cable does provide some convenience for the maintenance of trout f 11, and also provides effective protection against optical fiber cables. ^ Δ, 'The above method also has several obvious shortcomings. The material of the outer tube # (pvc) · Method provides enough elastic benzene ruler can be used in conjunction with the cable spool (sp001) (to more than forty minutes. Therefore, there must be a connecting part every forty feet, This adds considerable expense to the overall project budget.

508888 V. Description of the invention (4) Second, each connection rank of the outer duct has a structural weakness, or a vulnerable pipeline has increased its position. Facilitating the penetration of pollutants from groundwater sources. Furthermore, the cost of installing the above-mentioned inner pipe into the outer pipe has increased by a huge amount. Midea Laboratories also showed another multi-channel catheter for installation. From the above: =; No. 5,692,545 reveals the cable guide of the cable, and the thin body part is f:;: used to protect the communication. The first one is: ㈣, extending from the above-end to the upper one. It is inferior to the above body part. At least two approximately completely parallel through the above-mentioned body portion; and "= sufficient cross-sectional area can be accommodated ^ ^ The body portion is made of a composite of plastic and rubber layers: through-winding, the above-mentioned multi-channel catheters are reduced Inner tube f catheter can be produced by extrusion method with a longer length. Therefore, the above-mentioned catheters are also connected securely and provide strong protection. However, the above The type of catheter has structural defects, a compound of rubber and rubber shavings. According to the description of the above reference, if the above catheter requires higher hardness, the percentage of material can be increased. Conversely, if needed Higher flexibility, increasing the ratio of rubber chips can improve its necessary flexibility. Therefore, on the above-mentioned multi-channel catheters, it is difficult for us to achieve greater strength and greater flexibility at the same time. . Additionally, In the above-described type predictably, rubber crumb containing a higher percentage of multiple

Page 8 V. Description of the invention (5) The channel duct will also have more than ~ items in the meat county of the channel described in Xi Xia, Xue Xi Qian / f, ": electric wires, and the like ^ ,. Dirt. The above may be the key flaw. Abstract of the Invention of the Sacral Catheter Field of the Invention The object of the present invention is to provide a multi-channel garment optical fiber, electric wire, and the like capable of working; In order to quickly, another object of the present invention is to propose a & reduce the number of connection points required between the catheter sections, and the assembly for high strength and flexibility. The Asian Ambassador also has the present invention. Yet another object of the present invention is to include an inner surface with a sufficiently smooth inner surface. The above-mentioned assembly conforms to the multi-channel conduit for a cable of the present invention. (A) A plurality of plastic interiors Conduit, large to large, do not extend in the same direction, and they are connected to each other poorly. • The catalogs are connected to each other, and the sub-conductors are in contact with each other. The plastic inner guide is not enough to accommodate at least one cable. Cross-sectional area; and (b) κ, ba,… μ grain field 1 Wen Shou, and other officials have won each other! Relationship; (c) the above-mentioned outer catheter has a corrugated tubular section in its entirety, with continuous plural ridges and plural depressions (tr0ugh); ((1) With this, the above assembly is flexible, and it is convenient to be coiled on a transportable reel, and the assembly is also strong enough to withstand the pressure of soil when it is buried in a trench.: ^ A plastic outer catheter, which surrounds the inner catheter, and has a length that can cover the entire length of the inner humiliation officer, so as to keep the inner catheter in an adjacent relationship with each other; (c) the whole section of the outer guide camp. Yiyou wedding makeup

Page 9 508888 V. Description of the invention (6) Most of the above are coiled in a multi-channel guide trench, which can be used to guide the nature of the present invention, and made of stronger plastic material suitable for light illustration of the device. The characteristics of the tube assembly of the simple channel guide and the direct buried tube assembly are described in the twisted and shielded special fiber cable. The tube assembly winding reel can be installed. It can be used to maintain the shape and strength. Furthermore, the wires can be continuously extruded into longer lengths. The above-mentioned coiled coil is placed in an underground communication tube for a considerable length, or it is provided in a comprehensively reduced cable installation cost, and the overall conductor system structure is quite complete and continuous. The outer conduit provides the above system. The inner catheter has a sufficiently smooth inner wall, or the like, with a relatively low friction. Fig. 1 is a front view showing the multi-channel catheter assembly of the above-mentioned invention. A representative assembly is provided with five internal catheters and a wave-shaped outer guide. In the figure, a partial zigzag outer catheter is sectioned to show the inner catheter provided in the zigzag outer catheter. Fig. 2 shows the so-called face indicated by the cutting plane line A_A in the i-th picture. Figure 3 is a cross-sectional view of a bundle of inner catheters (the catheters are made separately by extrusion and then assembled into a bundle).

Figure 4 shows the mouth view of the inner guide of the bundle covered with a flexible connection net. Fig. 5 is a front view illustrating a situation where the multi-channel conduit assembly of the present invention is coiled on a reel (this is a typical arrangement for installing the above-mentioned conduit somewhere underground). Figures 6 and 7 are sectional views showing other embodiments of the present invention. Shown

Page 10, 508888 V. Description of the invention (7) '" ------ for the catheter assembly' which includes a plurality of inner tubes with straight tube surfaces, # in a wave-shaped and circular section Outer catheter. < Figures 8, 9, and 10 are sectional views showing other embodiments of the present invention. 2 is not a catheter assembly, which includes a plurality of inner guide tubes' having a straight tube surface, which are arranged in a wave-shaped outer tube having a non-circular cross section. Fig. 11 is a sectional view showing another embodiment of the present invention. Shown is a catheter assembly 'which includes a plurality of inner catheters with flat tube surfaces and a plurality of inner catheters with corrugated tube surfaces, which are arranged in a corrugated outer tube with a non-circular cross section. DESCRIPTION OF SYMBOLS 1 ~ catheter bundle; 10 ~ inner catheter; 12 ~ ridge; 1 ~ connecting web (connecting web); 20 ~ outer catheter; 21 ~ ridge; 22 ~ troughs; 30 ~ Winding reel. For the person skilled in the art, the best embodiment of the present invention is: ethics. After the following description of the various embodiments described through a variety of illustrations, I will touch, & "1 ^ ^, ΊI am also skeptical, the above-mentioned and other objects and advantages of the present invention will be apparent. To produce special methods and equipment according to the present invention, the above-mentioned equipment is also excellent. Patented for various conventional technologies. Therefore, for the detailed description of the above-mentioned equipment and methods using the assembly, the catheter assembly must use a multi-channel catheter assembly to produce the present invention. The invention of the multi-channel catheter is described in this specification and the drawings.

The first example includes the connection; and the above-mentioned connection is covered by the above-mentioned internal connection, and the electric iron or the above-mentioned structure can be shown in the figure) The number of the above-mentioned inside and the cross-sectional shape that can have each, but the required shape Between the cables produced by the above or other thermo-enes, one or more of the above-mentioned multi-channel catheter assembly I can be used to cover the inner tube 1. 〇The length of the plastic pipe adjacent to the inner catheter Π), so that the above inside; with: ◦, the outer catheter 2 can be described. It has a twisty shape ;: it is adjacent to each other so as to extend in the same direction in parallel, and mutually poor # + the above inner tube 丨 0 respectively and ancient $ 丨, α stands adjacent to the ground and has at least enough to accommodate a locust + Cross-sectional area of the line. ~ Optical fiber The inner catheter 10 is combined to form a catheter bundle! . The above-mentioned catheter bundle is composed of the above-mentioned individually extruded inner catheters 10 (such as the first or the flexible connection network (connect i ng Web) 1) guide 10 (as shown in Figure 4). The shape of the cross section of the inner tube 1 and the outer tube 20 is different, and the cross-sections of the above-mentioned guides are various. In the above preferred embodiment, the cross section of the inner tube 10 is a circular step reader must understand that the inner tube 1 They can have any households, such as round, oval, square, or other shapes when in use. The inner tube 10 can be made of polyethylene, polypropylene, or plastic synthetic resin. However, the inner tube is 1 Q is based on polyethylene. It is better-more flexible than other plastics, and its friction due to slipping is also less. In the above-mentioned inner tube, the fiber optic cable should be further reduced to drag the fiber optic cable. Through the whole department

Page 12 V. Description of the invention (9) —---- The frictional force generated by the command of Japan and Japan can be made with a private α *, or a screw on the inner surface of the inner guide 1 〇 The ridge i 2 is described so that the cable is dragged along the ridge when the tooth passes through the inner catheter 10 (as shown in FIG. 2). Alternatively, the wall of the above-mentioned inner catheter 10 may be made into a corrugated shape. • The above-mentioned duct 2 with a wavy pipe surface and a plurality of ridges 21 and troughs 22 extending across the entire length, covering the

The inner catheter 10 is covered over the entire length to fix it. It is very important that the troughs 22 of the outer duct 20 have an adjacent relationship with the inner duct 10 as shown in FIG. 2. It is preferable that the adjacent part of the outer duct 20 and the inner duct 10 are adjacent to each other. Where they touch each other, they are welded together. Although it is preferred that the shape of the catheter other than the above-mentioned embodiment has regular and rounded twists and turns, spiral twists and turns can also be used. The outer catheter 20 may be made of polyethylene, polypropylene, or other thermoplastic synthetic resin. However, like the above-mentioned inner tube, polyethylene is the best material for the above-mentioned outer tube 20.

The present invention relates to a plurality of plastic inner catheters 10, which are substantially adjacent to each other in parallel, and extend in the same direction, and are in close contact with each other, and a wave-like shape covering the entire length of the inner catheter 10. The outer catheter 20 is used to maintain the adjacent relationship between the inner catheters. In addition, the multi-channel catheter assembly of the present invention has considerable flexibility and can be coiled on a transportable reel, because the above-mentioned plastic outer catheter 20 having a relatively large diameter has a twist Tube-like surface. Figures 1 and 2

508888. Invention description (10) shows a multi-channel catheter assembly in accordance with the present invention, and our factory has already produced the above-mentioned assembly. ^ The five inner catheters i 0 are approximately parallel to each other and extend in the direction of the 4 longitudinal axis in close contact with each other, and are covered in a full length and covered with a corrugated outer catheter. The elastic web 12 is connected. The above-mentioned outer 20 has a spiral twist. 2 1 | The above-mentioned outer catheter 2 0's twists and turns include overlapping ridges (Γ1 dge) 20 and !! (tr0UghS) 22, which are provided in the outer catheters through the entire length to provide higher The flexibility and strength make the above-mentioned multi-pass bendable to a smaller radius without breaking. n. Heart In the above-mentioned preferred embodiments, the outer catheter 20 and the inner catheter 10 are both made of polyethylene. The inner catheter 10 has a straight camping surface, and a flexible connecting web 11 covers the inner catheter so as to form a catheter bundle 1 tightly connected to each other. The above inner and inner surfaces have longitudinal ridges 12. The adjacent outer tube 20 and the inner tube 10 are in contact with each other (the inner surface of the outer tube is in contact with the outer surface of the inner tube 10). The knife was welded. The following is a detailed description of the advantages of this embodiment-:: Only 9 embodiments of the present invention have amazing flexibility, which can be easily explained: many; Ϊ diameter diameter (as shown in Figure 5) winding Plate 30. According to the above requirements, an optical fiber telescope can be installed to achieve the highest length. The continuous extrusion can reach more than one kilometer. The advantages of the longer length on the earth are: (丨) cable or cable 508888 V. Description of the invention (ll) Second, fewer connection points' (2) The life of the coil is longer, and it is reliable and (3) ) The time for erection and maintenance of electrical windings or electrical windings is shortened. Embodiments of the present invention have camp guides. , And a wave of closely adjacent cells covering the inner tube 10 to maintain its full length. When the line is buried in the trench, the relationship is reduced too much:. Turning the tube to a five-foot arc, the above structure also provides a small bend to bear the weight of the soil. ', Strong compression resistance' second 'due to the above on the inside surface. 2 made of polyethylene, with fewer connection points; conduit two: (r :: e = fiber optic power cable, wire or similar second Fourth, because of the above outer tomb, the same material, but also the inner tube 10 adjacent to each other not only has the temperature of the outer tube 20 and the inner tube 10; then, even if the above is the preferred implementation: = Feeling = Health: The cross section of the official is round, and the non-circular cross section of the folded outer guide is not suitable for the special case in the special case. Of course, it is possible to use a circular tube with a non-circular cross section, and how to configure the tube to be replaced with a different shape. Look at the simple description of the above-mentioned inner embodiment. ,demand. The following is a drawing of the present invention. The eighth figure shows a vessel containing catheter assembly, including two straight, with 508888 V. Description of the invention (12) a circular cross section of the inner catheter, and a corrugated, with 20 ° Figure 9 shows a multi-channel catheter assembly, a circular cross-section inner catheter, and a corrugated, ducted 20. Figure 10 shows a multi-channel catheter assembly with a circular cross section of the inner catheter, and a corrugated, with catheter 20. Figure 11 shows a multi-channel catheter assembly with a circular cross-section inner catheter and five corrugated inner, rounded quadrangular cross-section catheters 20. Although the present invention has been described in specific embodiments, any modification and retouching can be easily seen by those skilled in the art. Therefore, the following is to modify and retouch the spirit and scope of the claimed invention. Outside the elliptical section, the duct includes three straight, rounded triangular sections, including four straight, rounded quadrangular sections, including four straight, ducted sections, and a wave of folds as above. It is expected that The words will undoubtedly belong to the obvious scope covering the above-mentioned

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Claims (1)

508888 VI. Scope of patent application 1. A multi-channel conduit assembly for cables, including: (a) a plurality of plastic inner conduits, which are substantially adjacent to each other in parallel, and extend in the same direction, respectively, and are in close contact with each other. The plastic inner ducts each have a cross-sectional area at least sufficient to accommodate a cable; and (b) — a plastic outer duct that surrounds the inner duct and has a length that can cover the entire length of the inner duct, so that Maintain the adjacent relationship; (c) The outer tube has a corrugated tube surface in its entirety, and has a plurality of continuous ridges and a plurality of depressions thereon; (d) By this, the assembly has flexibility It is convenient to coil on a transportable reel and the above assembly buried in the trench has sufficient strength to withstand the erosion of soil. 2. The multi-channel conduit assembly for cables according to item 1 of the scope of patent application, wherein the inner conduits are made of polyethylene, respectively. 3. The multi-channel conduit assembly for a cable according to item 1 of the scope of patent application, wherein each of the inner conduits has a substantially circular cross section. 4. The multi-channel conduit assembly for a cable according to item 1 of the scope of the patent application, wherein the inner conduits are each made by extrusion. 5. The multi-channel conduit assembly for a cable according to item 1 of the scope of the patent application, wherein the inner conduit is connected with a flexible mesh for connection. 6. The multi-channel conduit assembly for a cable according to item 1 of the scope of the patent application, wherein each of the outer conduits has a substantially circular cross section. 7. The multi-channel conduit for cable as described in item 1 of the scope of patent application 508888 i υ multi-channel conduit assembly for cable a, --- M & take, package symbol ·… / plural plastic inner conduit, roughly ground phase ^ _ Extending in the direction and close to each other. The above-mentioned plastic guide B / knife has a cross-sectional area sufficient to accommodate at least one cable; and (b) — a plastic outer tube that surrounds the inner tube and has a ^ culvert. 1 The length of the entire length of the inner tube is used to make the inner tube and the tube close to each other; β "Red CC) The outer tube is provided with a corrugated tubular portion extending through the entire length. Ridges and depressions; and the inside of the outer and inner catheters is made of polyethylene (d) Therefore, the above-mentioned assembly has flexibility, which is convenient for coiling on a transportable reel, and the assembly has sufficient strength when it is buried in a trench, and can withstand the pressure of soil. 11. The multi-channel conduit assembly for a cable according to item 10 of the scope of the patent application, wherein the inner conduit and the outer conduit are welded to each other at a corrugated portion where the recessed portion of the outer conduit contacts the surface of the inner conduit . 1 2 · Multi-channel conduit for cables as described in item 10 of the scope of patent application Page 18 508888 6. Scope of patent application Assembly, in which the above-mentioned inner catheter is made by extrusion method respectively. 1 3 · The electrically-wound multi-channel catheter assembly according to item 10 of the scope of patent application, wherein the inner catheter is connected by a flexible connection network. 1 4 · The electric winding multi-channel catheter assembly according to item 10 of the scope of the patent application, wherein the inner catheter has longitudinal ridges on the inner surface, respectively, so that when the electric thinner is drawn through the inner catheter Drive on the ridge. 1 5 · The electrically slow multi-channel catheter assembly according to the scope of the patent application, wherein the inner catheter has spiral ridges on the inner surface, respectively. The portion 'is used to make the electrical winding pass over the ridge when passing through the inner catheter. 16 · The multi-channel catheter assembly for electric power as described in item No. 0 of the patent application scope, wherein the inner catheter has a corrugated portion on the inner surface. 17 · The multi-channel conduit assembly for a cable according to Item 10 of the scope of patent application, wherein each of the outer conduits has a substantially circular cross section. 18 · The multi-channel electrical conduit assembly for electric winding as described in item 10 of the scope of patent application, wherein the outer conduits each have a / elliptical cross section. 19 · The multi-channel conduit assembly for a cable according to item 10 of the scope of the patent application, wherein the outer conduits each have / are approximately rounded triangle faces. 2 〇 The electric winding multi-channel catheter assembly according to Item 10 of the patent application scope, wherein the outer catheters each have a wearing surface with a roughly rounded quadrangular shape. 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