A porous, perforated, protective tube

Abstract

The utility model belongs to the technical field of protective pipe, specifically relates to a porous wear -resisting pipe, including outer pipe, intermediate pipe and inner tube, the longitudinal section of inner tube is quadrilateral, the longitudinal section of intermediate pipe is octagonal, is equipped with first connecting block between inner tube and intermediate pipe, is equipped with second connecting block between intermediate pipe and outer pipe, first connecting block divides the space between inner tube and intermediate pipe into a plurality of first wear -resisting holes, second connecting block divides the space between intermediate pipe and outer pipe into a plurality of second wear -resisting holes. The utility model discloses inner tube can be used as the wear -resisting hole of cable / optical cable, the space between inner tube and intermediate pipe is divided into a plurality of first wear -resisting holes, the space between intermediate pipe and outer pipe is divided into a plurality of second wear -resisting holes, can make the whole wear -resisting pipe be divided into more wear -resisting holes, can be used for more cable / optical cable wear -resisting. Through inner tube quadrilateral intermediate pipe octagonal design, make the internal support of whole wear -resisting pipe better, can reach the ideal ring stiffness under the thinner wall thickness.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of protection pipe, specifically relates to a porous protection pipe. BACKGROUND

[0002] With the large-scale deployment of communication network, the intelligent upgrading of new power system and the rapid growth of the demand for comprehensive utilization of urban underground space, the laying of high-capacity and high-reliability communication cables and power cables becomes a key link of infrastructure construction. In the traditional laying mode, communication cables and power cables often face multiple challenges due to path overlap, space competition or environmental interference. On the one hand, urban underground pipe network is dense, and the cost of building a dedicated pipe gallery is high and the period is long. On the other hand, electromagnetic radiation, thermal radiation and external force damage (such as construction mis-digging, mouse and ant gnawing) generated during the operation of power cables are easy to cause signal attenuation or even interruption risk of communication cables laid in the same ditch; conversely, the metal reinforcing core or joint box of communication cables may also cause safety hazards such as excessive induced voltage and insulation breakdown if they are in direct contact with power cables.

[0003] Under this background, the "internal small hole running" technology emerges as the times require as an efficient co-ditching / co-gallery solution. This technology realizes the layered and regional running of communication cables and power cables by opening multiple adaptive small holes on the protection pipe of cables and optical cables. The current porous protection pipe has a small number of holes, and if the number of cables or optical cables to be laid is large, the number of protection pipes required will be large, resulting in increased cost. UTILITARIAN CONTENT

[0004] The utility model aims at providing a porous protection pipe, solving the problem of fewer holes in the protection pipe of the prior art, causing more protection pipes to be used and increasing the cost.

[0005] To achieve the above technical purpose, the utility model adopts the following technical scheme:

[0006] A multi-hole protective conduit includes an outer tube, a middle tube, and an inner tube. The inner tube has a quadrilateral longitudinal section, and the middle tube has an octagonal longitudinal section. A plurality of first connecting blocks are provided between the inner tube and the middle tube, and a plurality of second connecting blocks are provided between the middle tube and the outer tube. The first connecting blocks divide the space between the inner tube and the middle tube into a plurality of first through holes, and the second connecting blocks divide the space between the middle tube and the outer tube into a plurality of second through holes. In this technical solution, by setting up the outer tube, middle tube, and inner tube, the inner tube can serve as a through hole for cable / optical fiber. The space between the inner tube and the middle tube is divided into a plurality of first through holes, and the space between the middle tube and the outer tube is divided into a plurality of second through holes. This allows the entire protective conduit to be divided into more independent through holes, enabling more cables / optical fibers to be installed and reducing the number of protective conduits required. Furthermore, this technical solution, through the quadrilateral design of the inner tube and the octagonal design of the middle tube, and the separation of the first connecting block and the second connecting block, makes the internal support of the entire protective tube better, and can achieve ideal ring stiffness with a thinner wall thickness, further saving production raw materials and reducing production and use costs.

[0007] Furthermore, the longitudinal section of the inner tube is square, the longitudinal section of the middle tube is regular octagonal, and the longitudinal section of the outer tube is circular. In this technical solution, the structural design of the inner tube having a square longitudinal section, the middle tube having a regular octagonal longitudinal section, and the outer tube having a circular longitudinal section can further improve the ring stiffness of the entire protective tube; and this shape design makes it easier for the inner and middle tubes to fit together when two protective tubes are connected, making construction and installation more convenient.

[0008] Furthermore, one side of the first connecting block is connected to the inner edge of the intermediate tube, and the other side of the first connecting block is connected to the outer edge of the inner tube. The first connecting block divides the annular space between the inner tube and the intermediate tube into four equal parts. By connecting the two sides of the first connecting block to the inner edge of the intermediate tube and the outer edge of the inner tube respectively, and equally distributing them, the first connecting block provides stronger support between the intermediate tube and the inner tube, thereby improving the overall annular stiffness of the protective tube.

[0009] Furthermore, one side of the second connecting block is connected to the outer edge of the intermediate tube, and the other side of the second connecting block is connected to the inner wall of the outer tube. The first connecting block divides the annular space between the outer tube and the intermediate tube into eight equal parts. By connecting both sides of the second connecting block to the inner wall of the outer tube and the outer edge of the intermediate tube, and equally distributing them, the second connecting block provides stronger support between the intermediate tube and the outer tube, thereby improving the overall annular stiffness of the protective tube.

[0010] Furthermore, the outer tube, intermediate tube, inner tube, first connecting block, and second connecting block are integrally formed. This integral forming process makes the production of this protective tube simpler and faster.

[0011] Furthermore, the outer tube, intermediate tube, inner tube, first connecting block, and second connecting block are all made of polypropylene, polyethylene, or polyvinyl chloride resin. These materials have low density and high strength, making them suitable for use as protective conduits for cables and optical fibers.

[0012] Furthermore, the outer tube has a wall thickness of 2.5mm-2.75mm; the intermediate tube, inner tube, first connecting block, and second connecting block all have a wall thickness of 2.0mm-2.2mm. This protective pipe's structural design, despite its relatively thin wall thickness, also exhibits good ring stiffness, meeting construction requirements.

[0013] Furthermore, the outer tube is provided with a circumferential array of multiple positioning marks, which are located on the outer wall of the connection between the first connecting block and the outer tube. This arrangement ensures that the outer wall of the outer tube has a positioning mark at regular intervals, guaranteeing that the inner holes of every two tubes can be aligned after rotating the tubes by a certain angle, making construction more convenient and faster.

[0014] Furthermore, there are four positioning marks, which are recessed V-shaped angles with an angle of 40°-60° and a depth of 1.5mm-2.0mm.

[0015] The utility model adopting the above technical solution has the following advantages:

[0016] 1. This utility model, through the setting of an outer tube, a middle tube and an inner tube, allows the inner tube to serve as a through hole for cable / optical cable. The space between the inner tube and the middle tube is divided into several first through holes, and the space between the middle tube and the outer tube is divided into several second through holes. In this way, the entire protective tube can be divided into more independent through holes, allowing more cables / optical cables to be installed, thus saving the number of protective tubes used.

[0017] 2. This utility model features a quadrilateral inner tube and an octagonal middle tube, separated by a first connecting block and a second connecting block. The two sides of the first connecting block are connected to the inner edge of the middle tube and the outer edge of the inner tube, respectively, and are equally spaced. The two sides of the second connecting block are connected to the inner wall of the outer tube and the outer edge of the middle tube, respectively, and are equally spaced. This design improves the internal support of the entire protective tube, achieving ideal ring stiffness with a thinner wall thickness, further saving raw materials and reducing production and usage costs.

[0018] 3. The inner tube of this utility model has a square longitudinal section, the middle tube has a regular octagonal longitudinal section, and the outer tube has a circular longitudinal section. Furthermore, through the design of positioning marks, when the two protective tubes are connected, the inner tube and the middle tube are more likely to fit together, making construction and installation more convenient. Attached Figure Description

[0019] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0020] Figure 1 This is a longitudinal cross-sectional schematic diagram of a perforated protective tube according to the present invention.

[0021] The symbols for the main components are explained below:

[0022] Outer tube 1, middle tube 2, inner tube 3, first connecting block 4, second connecting block 5, first through hole 6, second through hole 7, positioning mark 8. Detailed Implementation

[0023] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that similar or identical parts are referred to by the same reference numerals in the drawings or description. Implementations not shown or described in the drawings are forms known to those skilled in the art. Furthermore, directional terms mentioned in the embodiments, such as "up," "down," "top," "bottom," "left," "right," "front," and "back," are only for reference to the directions in the drawings and are not intended to limit the scope of protection of the present invention.

[0024] This embodiment is a perforated protective tube, such as... Figure 1 As shown, from the outside to the inside, it includes an outer tube 1, a middle tube 2, and an inner tube 3. In this embodiment, the longitudinal section of the inner tube 3 is quadrilateral, the longitudinal section of the middle tube 2 is octagonal, the longitudinal section of the inner tube 3 is square, the longitudinal section of the middle tube 2 is regular octagonal, and the longitudinal section of the outer tube 1 is circular. Four first connecting blocks 4 are provided between the inner tube 3 and the middle tube 2, and eight second connecting blocks 5 are provided between the middle tube 2 and the outer tube 1. The first connecting blocks 4 divide the space between the inner tube 3 and the middle tube 2 into four first through holes 6, and the second connecting blocks 5 divide the space between the middle tube 2 and the outer tube 1 into eight second through holes 7.

[0025] In this embodiment, one side of the first connecting block 4 is connected to the inner edge of the intermediate tube 2, and the other side of the first connecting block 4 is connected to the outer edge of the inner tube 3. The first connecting block 4 divides the annular space between the inner tube 3 and the intermediate tube 2 into four equal parts. One side of the second connecting block 5 is connected to the outer edge of the intermediate tube 2, and the other side of the second connecting block 5 is connected to the inner wall of the outer tube 1. The first connecting block 4 divides the annular space between the outer tube 1 and the intermediate tube 2 into eight equal parts. Four positioning marks 8 are arranged in a circular array on the outer wall at both ends of the outer tube 1. The positioning marks 8 are located on the outer wall at the connection between the first connecting block 4 and the outer tube 1. The positioning marks 8 are V-shaped angles with an angle of 40°-60° and a depth of 1.5mm-2.0mm. In this embodiment, the angle is 50° and the depth is 1.8mm. In other embodiments, the positioning marks can also be upwardly protruding ribs, as long as they serve the purpose of marking.

[0026] The outer tube 1, intermediate tube 2, inner tube 3, first connecting block 4, and second connecting block 5 are all made of polypropylene or polyethylene, or polyvinyl chloride resin. In this embodiment, polyvinyl chloride resin is selected. The wall thickness of the outer tube 1 is 2.5mm-2.75mm. The wall thickness of the intermediate tube 2, inner tube 3, first connecting block 4, and second connecting block 5 is 2.0mm-2.2mm. In this embodiment, the wall thickness of the outer tube 1 is selected as 2.5mm, and the wall thickness of the intermediate tube 2, inner tube 3, first connecting block 4, and second connecting block 5 is selected as 2.0mm. The outer diameter of the protective tube is 150mm. The outer tube 1, intermediate tube 2, inner tube 3, first connecting block 4, and second connecting block 5 are integrally formed.

[0027] The perforated protective pipe using the above technical solution has the following advantages:

[0028] The multi-hole protective pipe in this embodiment is configured with an outer pipe 1, an intermediate pipe 2, and an inner pipe 3. The inner pipe 3 can serve as a hole for passing cables / optical cables. The space between the inner pipe 3 and the intermediate pipe 2 is divided into four first through holes 6, and the space between the intermediate pipe 2 and the outer pipe 1 is divided into eight second through holes 7. In addition, there is one through hole in the inner pipe 3. In this way, the entire protective pipe can be divided into thirteen independent through holes, which can accommodate more cables / optical cables and save the number of protective pipes used.

[0029] Furthermore, the perforated protective tube in this embodiment also features a quadrilateral inner tube 3 and an octagonal middle tube 2, separated by a first connecting block 4 and a second connecting block 5. The two sides of the first connecting block 4 are respectively connected to the inner edge of the middle tube 2 and the outer edge of the inner tube 3, and are equally spaced. The two sides of the second connecting block 5 are respectively connected to the inner wall of the outer tube 1 and the outer edge of the middle tube 2, and are equally spaced. This design improves the internal support of the entire protective tube, enabling it to achieve ideal ring stiffness with a thinner wall thickness, further saving raw materials and reducing production and usage costs.

[0030] In addition, the perforated protective tube of this embodiment has a structure design in which the longitudinal section of the inner tube 3 is square, the longitudinal section of the middle tube 2 is regular octagonal, and the longitudinal section of the outer tube 1 is circular. Furthermore, through the design of the positioning mark 8, when the two protective tubes are connected, the inner tube 3 and the middle tube 2 are more likely to fit together, making construction and installation more convenient.

[0031] The following describes the ring stiffness tests conducted on the protective tube prepared in this embodiment in three directions: directly above, directly to the left, and directly to the right. The measured values ​​were 15.6 KN / m. 2 16.2KN / m 2 16.4KN / m 2 The tube underwent a drop hammer impact test (-5, 1h), and remained unbroken under 2m / 0.5Kg / 25mm hammer weight. The test data shows that the perforated protective tube in this embodiment possesses good ring stiffness and impact resistance. While exhibiting excellent mechanical properties, it also allows for thinner tube walls, reducing raw material usage and lowering costs.

[0032] The above provides a detailed description of a perforated protective tube provided by this utility model. The specific embodiments are described only to aid in understanding the method and core concept of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A perforated protective tube, characterized in that: It includes an outer tube, a middle tube, and an inner tube. The longitudinal section of the inner tube is quadrilateral, and the longitudinal section of the middle tube is octagonal. A plurality of first connecting blocks are provided between the inner tube and the middle tube, and a plurality of second connecting blocks are provided between the middle tube and the outer tube. The first connecting blocks divide the space between the inner tube and the middle tube into a plurality of first through holes, and the second connecting blocks divide the space between the middle tube and the outer tube into a plurality of second through holes.

2. The perforated protective tube according to claim 1, characterized in that: The longitudinal section of the inner tube is square, the longitudinal section of the middle tube is octagonal, and the longitudinal section of the outer tube is circular.

3. A perforated protective tube according to claim 2, characterized in that: One side of the first connecting block is connected to the inner edge of the middle tube, and the other side of the first connecting block is connected to the outer edge of the inner tube. The first connecting block divides the annular space between the inner tube and the middle tube into four equal parts.

4. A perforated protective tube according to claim 3, characterized in that: One side of the second connecting block is connected to the outer edge of the middle tube, and the other side of the second connecting block is connected to the inner wall of the outer tube. The first connecting block divides the annular space in the outer tube and the middle tube into eight equal parts.

5. A perforated protective tube according to any one of claims 1-4, characterized in that: The outer tube, middle tube, inner tube, first connecting block, and second connecting block are integrally formed.

6. A perforated protective tube according to claim 5, characterized in that: The outer tube, intermediate tube, inner tube, first connecting block, and second connecting block are all made of polypropylene, polyethylene, or polyvinyl chloride resin.

7. A perforated protective tube according to claim 6, characterized in that: The outer tube has a wall thickness of 2.5mm-2.75mm; the intermediate tube, inner tube, first connecting block and second connecting block all have a wall thickness of 2.0mm-2.2mm.

8. A perforated protective tube according to claim 4, characterized in that: The outer tube is provided with a circumferential array of multiple positioning marks, which are located on the outer wall of the connection between the first connecting block and the outer tube.

9. A perforated protective tube according to claim 8, characterized in that: There are four positioning marks, which are recessed V-shaped angles with an angle of 40°-60° and a depth of 1.5mm-2.0mm.

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