An underground communication cable conduit reinforcing structure

Abstract

The utility model relates to an underground communication cable pipeline reinforcing structure belongs to communication cable pipeline technical field, this underground communication cable pipeline reinforcing structure, include: cable pipeline, be provided with reinforcing mechanism that carries out reinforcing to cable pipeline on the cable pipeline, the reinforcing mechanism includes the reinforcing band that annularly is wound to the outer surface of cable pipeline, the reinforcing band side wall is opened and is limited hole, the reinforcing band outer surface is sleeved with the protection tube and is inserted with the reinforcing rib in the limited hole, the cable pipeline is interval and is provided with a plurality of elastic buffer ring, above -mentioned underground communication cable pipeline reinforcing structure has set up reinforcing mechanism, when cable pipeline is subjected to external pressure, the protection tube will pass on pressure to reinforcing band, under the action of reinforcing band and reinforcing rib to make pressure even dispersion, improve the contact area with cable pipeline, reduce the pressure intensity that is received, through the buffer pad and elastic buffer ring to absorb vibration, protect cable pipeline, avoid cable pipeline damage.

Description

Technical Field

[0001] This utility model relates to the field of communication cable conduit technology, and in particular to a reinforcement structure for underground communication cable conduits. Background Technology

[0002] Communication cables are cable products with conductors or optical fibers as their core components, used to transmit electrical or optical signals. They are widely used in telephone, network, broadcasting, television, and industrial control fields. Based on their structure, they can be divided into four categories: covered cables, overhead exposed cables, communication cables, and communication optical cables. Currently, most communication cables need to be buried underground to avoid being exposed. Furthermore, to protect underground cables, they are usually run through protective conduits.

[0003] As shown in the reference case "An Underground Pipeline Reinforcement Structure" (publication number CN209823372U), this relates to the field of underground pipeline reinforcement. It addresses the problem in existing technologies where underground pipelines deform under backfill settlement, rendering them unusable and posing significant maintenance challenges. The inner protective pipe contains a connecting rod, and the outer surface of the connecting rod contains an inner support column. Four first reinforcing sleeves are located on the outer surface of the inner protective pipe. An outer protective pipe is located outside the first reinforcing sleeves, and its outer surface is covered with a rubber protective sleeve. One end of the outer protective pipe has a first end cap, and four positioning columns are located on one side of the outer surface of the first end cap. A first connecting sleeve is located on one side of the outer surface of the first end cap, and a second reinforcing sleeve is located on each side of the first connecting sleeve. A first connecting seat is located on the outer surface of the first end cap.

[0004] However, when the above-mentioned pipeline reinforcement structure is in use, the outer protective pipe and the inner protective pipe are connected by the first reinforcing pipe. The contact area between the two is limited, the pressure is relatively concentrated, which is not conducive to protecting the inner protective pipe. In addition, the connection of the reinforcing pipe requires welding, which makes the installation more troublesome. Utility Model Content

[0005] Therefore, it is necessary to provide a reinforcement structure for underground communication cable ducts to address the problems of concentrated pressure, which makes it difficult to protect the inner protective pipe, and the need for welding when connecting the reinforcing pipe, which makes installation more troublesome.

[0006] An underground communication cable duct reinforcement structure includes: a cable duct with protective caps snapped at both ends, and a reinforcement mechanism for reinforcing the cable duct; the reinforcement mechanism includes a reinforcement strip wrapped around the outer surface of the cable duct in an annular shape, a limit hole formed in the side wall of the reinforcement strip, a reinforcing rib inserted into the limit hole, a protective tube sleeved on the outer surface of the reinforcement strip, and multiple elastic buffer rings spaced apart inside the cable duct.

[0007] In one embodiment, the elastic buffer rings are correspondingly arranged with the reinforcing strips, and the elastic buffer rings are connected to each other by a mounting rod.

[0008] In one embodiment, a limiting hole is formed on the side wall of the elastic buffer ring, and an installation rod is inserted into the limiting hole, with the installation rod and the limiting hole being interference-fitted.

[0009] In one embodiment, a buffer pad is fixedly connected to the inner wall of the cable conduit, and the outer surface of the elastic buffer ring is fitted with the buffer pad.

[0010] In one embodiment, the reinforcing rib is provided with a connecting mechanism for limiting the reinforcing strip. The connecting mechanism includes a rubber seat disposed on the surface of the reinforcing rib, and a retaining ring disposed on the rubber seat. The retaining ring is configured as an elastic ring, and a through groove is formed on the surface of the retaining ring for the reinforcing rib to pass through.

[0011] In one embodiment, an anti-slip pad is fixedly connected to the side of the rubber seat near the reinforcing rib, and an anti-slip pad corresponding to the retaining ring is fixedly connected to the inner wall of the retaining ring.

[0012] In one embodiment, the elastic buffer ring is made of silicone rubber and the buffer pad is made of polyurethane foam.

[0013] In one embodiment, the reinforcing rib is arranged along the axial direction of the cable conduit, and the reinforcing rib is made of carbon fiber.

[0014] Beneficial effects The aforementioned underground communication cable duct reinforcement structure is equipped with a reinforcement mechanism. When the cable duct is subjected to external pressure, the protective pipe transmits the pressure to the reinforcement strip. Under the action of the reinforcement strip and reinforcing ribs, the pressure is evenly distributed, increasing the contact area with the cable duct and reducing the pressure. Vibration is absorbed through the buffer pad and elastic buffer ring, protecting the cable duct and preventing damage to the cable duct. A connecting mechanism is provided, which locks the rubber seat on the surface of the reinforcing rib by cooperating with the rubber seat and the retaining ring. By setting multiple rubber seats, the position of the reinforcing strip is locked, so that the reinforcing strip is evenly distributed on the outer surface of the cable duct and the cable duct is subjected to uniform force. The setting of the connecting mechanism ensures both assembly convenience and limit reliability. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the cable conduit structure of this utility model; Figure 3 This is a schematic diagram of the reinforcement mechanism of this utility model; Figure 4 For the present utility model Figure 3 Enlarged view of the structure at point A in the middle; Figure 5 This is a schematic diagram of the internal structure of the cable conduit of this utility model.

[0017] Figure label: 100. Cable conduit; 110. Protective cover; 200. Reinforcing mechanism; 210. Reinforcing strip; 220. Reinforcing rib; 230. Buffer pad; 240. Elastic buffer ring; 250. Mounting rod; 260. Protective tube; 300. Connecting mechanism; 310. Rubber seat; 320. Snap ring. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0019] The following is combined Figures 1-5 This invention describes the reinforcement structure for underground communication cable ducts.

[0020] In one embodiment, an underground communication cable duct reinforcement structure includes: a cable duct 100, with protective caps 110 snapped onto both ends of the cable duct 100, and a reinforcement mechanism 200 for reinforcing the cable duct 100; the reinforcement mechanism 200 includes a reinforcement strip 210 annularly wrapped around the outer surface of the cable duct 100, with limiting holes opened on the side wall of the reinforcement strip 210, reinforcing ribs 220 inserted into the limiting holes, a protective tube 260 sleeved on the outer surface of the reinforcement strip 210, and a plurality of elastic buffer rings 240 spaced apart inside the cable duct 100.

[0021] like Figure 1 , Figure 3 and Figure 5As shown, the elastic buffer ring 240 and the reinforcing strip 210 are correspondingly arranged, and the elastic buffer rings 240 are connected by a mounting rod 250. A limiting hole is formed on the side wall of the elastic buffer ring 240, and the mounting rod 250 is inserted into the limiting hole with an interference fit. A buffer pad 230 is fixedly connected to the inner wall of the cable conduit 100, and the outer surface of the elastic buffer ring 240 is fitted to the buffer pad 230. The elastic buffer ring 240 is made of silicone rubber, and the buffer pad 230 is made of polyurethane foam. A reinforcing rib 220 is arranged along the axial direction of the cable conduit 100, and the reinforcing rib 220 is made of carbon fiber.

[0022] In this embodiment, the carbon fiber reinforcing strip 210 converts radial pressure into axial tensile stress through a spiral winding structure. Combined with the high tensile strength of the carbon fiber reinforcing rib 220, the overall tensile strength is improved, effectively resisting soil pressure and ground loads. The buffer pad 230 is bonded to the inner wall of the pipe and undergoes plastic deformation when compressed, absorbing high-frequency impact energy. The silicone rubber elastic buffer rings 240 are connected in series by stainless steel mounting rods 250 to form a flexible support frame. When the cable is compressed, the silicone rubber undergoes radial elastic deformation, evenly distributing the pressure to adjacent rings and avoiding stress concentration.

[0023] The reinforcing tape 210 is wrapped around the outer surface of the cable conduit 100, so that the reinforcing tape 210 is evenly distributed on the outer wall of the cable conduit 100. The reinforcing rib 220 is inserted into the limiting hole in the reinforcing tape 210, so that the reinforcing tape 210 and the reinforcing rib 220 are connected. The surface of the reinforcing tape 210 is pulled, so that the reinforcing tape 210 slides along the surface of the reinforcing rib 220, thereby making the reinforcing tape 210 evenly distributed. After adjustment, the retaining ring 320 is clamped on the surface of the reinforcing rib 220, so that the rubber seat 310 is on both sides of the reinforcing tape 210. The position of the reinforcing tape 210 is limited by the rubber seat 310 to ensure that the reinforcing tape 210 is evenly distributed and to prevent the reinforcing tape 210 from sliding between the reinforcing rib 220 and the reinforcing rib 220. The spacing of the elastic buffer rings 240 is adjusted according to the spacing of the reinforcing strips 210 so that the elastic buffer rings 240 are set correspondingly to the reinforcing strips 210. The position of the elastic buffer rings 240 on the surface of the mounting rod 250 is locked by the connecting mechanism 300. The elastic buffer rings 240 and the mounting rod 250 are inserted into the cable conduit 100 as a whole. Then, the protective tube 260 is sleeved on the surface of the reinforcing strips 210 to complete the installation. No welding is required, and the installation is simple.

[0024] After fixing, insert the protective tube 260 into the outer surface of the reinforcing strip 210 to improve corrosion resistance and extend service life.

[0025] like Figure 2 and Figure 4As shown, the reinforcing rib 220 is provided with a connecting mechanism 300 for limiting the reinforcing strip 210. The connecting mechanism 300 includes a rubber seat 310 disposed on the surface of the reinforcing rib 220, and a retaining ring 320 disposed on the rubber seat 310. The retaining ring 320 is an elastic ring, and a through groove is formed on the surface of the retaining ring 320 for the reinforcing rib 220 to pass through. An anti-slip pad is fixedly connected to the side of the rubber seat 310 near the reinforcing rib 220, and an anti-slip pad corresponding to the retaining ring 320 is fixedly connected to the inner wall of the retaining ring 320.

[0026] In this embodiment, the rubber seat 310 is made of EPDM rubber, and the base has a semi-circular groove. An aramid fiber reinforcement layer is pasted on the inner wall to improve wear resistance. An anti-slip pad is fixedly connected to the side near the carbon fiber reinforcing rib 220. The retaining ring 320 is made of spring steel with a chrome-plated surface. A silicone rubber anti-slip strip is embedded in the inner wall of the retaining ring 320. When the pipeline vibrates or the installation of the protective pipe 260 causes relative displacement between the carbon fiber reinforcing rib 220 and the reinforcing strip 210, the through groove design of the retaining ring 320 generates a radial elastic contraction force, which, together with the anti-slip pad of the rubber seat 310, forms a bidirectional friction lock, inhibiting the movement of the reinforcing strip 210 and the reinforcing rib 220 and ensuring the uniform distribution of the reinforcing strip 210.

[0027] Working principle: When soil pressure or ground load is applied to the pipeline, the winding structure of the reinforcing strip 210 decomposes the radial pressure into axial tensile stress, and the high tensile strength of the carbon fiber reinforcing rib 220 bears the main load. The protective pipe 260 isolates groundwater and corrosive media, preventing the reinforcing strip 210 from aging. When external impact is transmitted to the inner wall of the pipeline, the polyurethane foam buffer pad 230 compresses and deforms first, absorbing high-frequency vibration energy. The elastic buffer ring 240 buffers low-frequency vibration through elastic deformation. The series mounting rods 250 cause multiple buffer rings to deform in tandem, forming a distributed damping system. When pipeline vibration causes the reinforcing rib 220 to shift, the through-groove design of the retaining ring 320 generates radial elastic contraction force, which, together with the anti-slip pad of the rubber seat 310, forms a bidirectional friction lock, inhibiting the movement of the reinforcing strip 210.

[0028] It should be noted that the reinforcing strip 210, reinforcing rib 220, buffer pad 230 and elastic buffer ring 240 mentioned above are all devices with relatively mature existing technology. The specific models can be selected according to actual needs, and will not be elaborated here.

[0029] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A reinforcement structure for underground communication cable ducts, characterized in that, include: A cable conduit (100) is provided with protective caps (110) at both ends, and a reinforcement mechanism (200) is provided on the cable conduit (100) to reinforce the cable conduit (100). The reinforcement mechanism (200) includes a reinforcement strip (210) that is wrapped around the outer surface of the cable conduit (100) in an annular shape. The side wall of the reinforcement strip (210) has a limiting hole, and a reinforcing rib (220) is inserted into the limiting hole. A protective tube (260) is sleeved on the outer surface of the reinforcement strip (210). Multiple elastic buffer rings (240) are spaced apart inside the cable conduit (100).

2. The underground communication cable duct reinforcement structure according to claim 1, characterized in that, The elastic buffer ring (240) and the reinforcing band (210) are respectively arranged, and the elastic buffer rings (240) are connected to each other by a mounting rod (250).

3. The underground communication cable duct reinforcement structure according to claim 1, characterized in that, The elastic buffer ring (240) has a limiting hole on its side wall, and an installation rod (250) is inserted into the limiting hole. The installation rod (250) is interference-fitted with the limiting hole.

4. The underground communication cable duct reinforcement structure according to claim 3, characterized in that, A buffer pad (230) is fixedly connected to the inner wall of the cable conduit (100), and the outer surface of the elastic buffer ring (240) is fitted with the buffer pad (230).

5. The underground communication cable duct reinforcement structure according to claim 1, characterized in that, The reinforcing rib (220) is provided with a connecting mechanism (300) for limiting the reinforcing strip (210). The connecting mechanism (300) includes a rubber seat (310) disposed on the surface of the reinforcing rib (220). The rubber seat (310) is provided with a retaining ring (320). The retaining ring (320) is configured as an elastic ring, and a through groove is opened on the surface of the retaining ring (320) for the reinforcing rib (220) to pass through.

6. The underground communication cable duct reinforcement structure according to claim 5, characterized in that, The rubber seat (310) is fixedly connected to the anti-slip pad on the side near the reinforcing rib (220), and the inner wall of the retaining ring (320) is fixedly connected to an anti-slip pad corresponding to the retaining ring (320).

7. The underground communication cable duct reinforcement structure according to claim 4, characterized in that, The elastic buffer ring (240) is made of silicone rubber, and the buffer pad (230) is made of polyurethane foam.

8. The underground communication cable duct reinforcement structure according to claim 1, characterized in that, The reinforcing rib (220) is arranged axially along the cable conduit (100), and the reinforcing rib (220) is made of carbon fiber.

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