Buried cable external protection structure

Abstract

The utility model discloses a buried cable external protection structure which comprises an external protection pipe, the top of the external protection pipe is provided with a top cover which can be opened, the internal part of the external protection pipe is provided with an internal protection pipe, and the internal part of the internal protection pipe is circumferentially provided with a plurality of main separator plates. The interior of the inner protection pipe is divided into a plurality of independent containing cavities through the multiple main partition plates. An auxiliary partition plate is rotationally hinged to the end, close to the inner wall of the inner protection pipe, of the main partition plate, a cable elastic clamp connected with the inner wall of the inner protection pipe is arranged in each containing cavity, and an opening through which a cable enters and exits the containing cavity is formed in the position, corresponding to the containing cavity, of the inner wall of the inner protection pipe; according to the utility model, the buried cables can be fixed and protected, and a plurality of buried cables can be separately isolated and fixed at the same time, so that the buried cables are prevented from being in contact with one another, and further the situations of mutual abrasion and concentrated heating of the buried cables are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of underground cable protection and relates to an underground cable external protection structure. Background Art

[0002] In the prior art, there are two main ways to lay cables: overhead and underground. Underground cable laying means pre-buried protective casings in the ground, and laying several cables through the protective casings. The pre-buried protective casings protect the underground cables. However, the existing pre-buried casings cannot separate the cables, resulting in contact between the cables, which not only causes mutual wear between the cables, but also causes the cables to gather and heat up, posing a hidden danger to the safe operation of the underground cables.

[0003] Therefore, in view of the defect that the existing underground cable protection sleeve cannot separate and fix the cable separately, the utility model discloses an underground cable external protection structure. Utility Model Content

[0004] The utility model aims to provide an external protective structure for underground cables, which can fix and protect the underground cables and isolate and fix several underground cables separately to avoid contact between the underground cables, thereby avoiding mutual wear and heat accumulation of the underground cables.

[0005] The utility model is realized by the following technical solutions:

[0006] A buried cable external protection structure comprises an outer protection tube, the top of the outer protection tube is provided with an openable top cover, the interior of the outer protection tube is provided with an inner protection tube, the inner circumference of the inner protection tube is provided with a plurality of main partitions, the plurality of main partitions divide the interior of the inner protection tube into a plurality of independent accommodating chambers; an auxiliary partition is rotatably hingedly connected at one end of the main partition close to the inner wall of the inner protection tube, each accommodating chamber is provided with a cable elastic clamp connected to the inner wall of the inner protection tube, and an opening for cables to enter and exit the accommodating chamber is provided on the inner wall of the inner protection tube at a position corresponding to the accommodating chamber.

[0007] The utility model is installed in the maintenance section of underground cables and is used to protect the cables in the maintenance section. The cables are passed through the openings on the inner wall of the inner protective tube and arranged in different accommodating chambers. The main partition separates the accommodating chambers to avoid cables from gathering and contacting. At the same time, the cables are clamped and fixed by the cable elastic clamps in the accommodating chambers. At the same time, when it is necessary to replace the accommodating chamber in which the cables are passed, the cables are removed from the cable elastic clamps, and then the auxiliary partition is rotated so that a gap is left between the auxiliary partition and the inner wall of the inner protective tube for the cables to move in different accommodating chambers. The cables can be moved in different accommodating chambers by passing through the gap. After the cables are passed through, a top cover is installed on the top of the outer protective tube to achieve independent protection of the cables in the underground partitions.

[0008] In order to better realize the utility model, further, a hinge hole is provided at one end of the main partition close to the inner wall of the inner protective tube, one end of the auxiliary partition is rotatably hinged to the hinge hole through a hinge shaft, and an elastic reset part is mounted on the hinge shaft, and the other end of the auxiliary partition is smoothly contacted and connected to the inner wall of the inner protective tube.

[0009] In order to better implement the utility model, further, the elastic reset member includes a reset torsion spring sleeved on the outside of the hinge shaft.

[0010] In order to better realize the utility model, further, the cable elastic clamp includes a connecting plate and a U-shaped elastic buckle, one side of the connecting plate is connected to the inner wall of the inner protective tube, and a U-shaped elastic buckle is fixedly installed on the other side of the connecting plate, and the U-shaped elastic buckle includes at least one opening for clamping the cable, and elastic clips are arranged on both sides of the opening.

[0011] In order to better realize the utility model, further, an anti-wear pad is provided on the clamping surface of the U-shaped elastic buckle.

[0012] In order to better realize the utility model, further, the top of the outer protective tube is provided with a stepped opening, and the bottom of the top cover is provided with a stepped boss that is clamped and fitted with the stepped opening.

[0013] In order to better implement the utility model, further, a sealing member is provided between the mating surfaces of the stepped boss and the stepped opening.

[0014] In order to better implement the utility model, further, a protective cage is arranged outside the outer protective tube, and the outside of the protective cage is tied with a strap, and the protective cage limits the top cover at the top of the outer protective tube.

[0015] In order to better implement the utility model, further, at least one group of lifting ears is provided on the top of the top cover.

[0016] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0017] (1) The utility model forms an external protection structure by setting an outer protection tube underground to protect the cables inside the tube, and at the same time sets an inner protection tube inside the outer protection tube to form a second layer of protection for the cables through the inner protection tube, thereby effectively improving the protection effect of the buried cables;

[0018] (2) The utility model arranges a plurality of main partitions along the circumferential direction inside the inner protective tube, and divides the interior of the inner protective tube into a plurality of independent accommodating chambers through the main partitions, and clamps and fixes the cables through the cable elastic clamps inside each accommodating chamber, so that the plurality of buried cables are separated from each other, and the cables are prevented from contacting and entangled with each other, causing the cables to wear and heat up, thereby providing protection for the safe operation of the buried cables;

[0019] (3) The utility model can realize the position adjustment of the cables in different accommodating chambers by rotating the auxiliary partition hinged at one end of the main partition, making it more convenient and labor-saving for workers to install and subsequently repair the buried cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the external protection structure of the buried cable;

[0021] Figure 2 A schematic diagram of the auxiliary baffle rotating away from the inner wall of the inner protection tube;

[0022] Figure 3 It is a schematic diagram of the assembly of the external protective structure of the buried cable;

[0023] Figure 4 Schematic diagram of the auxiliary partition and the inner wall of the inner protection tube

[0024] Figure 5 It is a schematic diagram of the installation of the elastic reset member;

[0025] Figure 6 Schematic diagram of the structure of the cable elastic clamp.

[0026] Among them: 1-external protective tube; 2-top cover; 3-inner protective tube; 4-main partition; 5-accommodating cavity; 6-auxiliary partition; 7-cable elastic clamp; 8-elastic reset member; 9-protection cage; 71-connecting plate; 72-U-shaped elastic buckle. DETAILED DESCRIPTION

[0027] The following detailed descriptions are all illustrative and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0028] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the utility model explicitly states otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0029] For the convenience of description, if the words "up", "down", "left" and "right" appear in the present invention, they only indicate that they are consistent with the up, down, left and right directions of the drawings themselves, and do not limit the structure. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0030] Terminology explanation section: The terms "install", "connect", "connect", "fixed" and so on in the present utility model should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements, or an interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0031] Embodiment 1:

[0032] An external protection structure of an underground cable in this embodiment, such as Figure 1-Figure 4 As shown, it includes an outer protective tube 1, the top of the outer protective tube 1 is provided with an openable top cover 2, the interior of the outer protective tube 1 is provided with an inner protective tube 3, the inner circumference of the inner protective tube 3 is provided with a plurality of main partitions 4, and the plurality of main partitions 4 divide the interior of the inner protective tube 3 into a plurality of independent accommodating chambers 5; an auxiliary partition 6 is rotatably hinged at one end of the main partition 4 close to the inner wall of the inner protective tube 3, and each accommodating chamber 5 is provided with a cable elastic clamp 7 connected to the inner wall of the inner protective tube 3, and an opening for the cable to enter and exit the accommodating chamber 5 is provided on the inner wall of the inner protective tube 3 at a position corresponding to the accommodating chamber 5.

[0033] This protective structure is usually set up in the maintenance section of the buried cable, for example, in the cable maintenance well. The outer protective tube 1 and the top cover 2 are made of metal material or concrete material, so that the outer protective tube 1 has a certain strength to resist external impact, thereby protecting the cable inside it. An inner protective tube 3 is coaxially arranged inside the outer protective tube 1. The inner protective tube 3 is made of synthetic plastic or synthetic rubber, so that the inner protective tube 3 has a certain toughness while protecting the cable inside it. A plurality of main partitions 4 are arranged on the inner wall of the inner protective tube 3 along the circumferential direction, such as Figure 2 and Figure 4 As shown, three main partitions 4 are arranged circumferentially on the inner wall of the inner protective tube 3, and the interior of the inner protective tube 3 is divided into four independent accommodating chambers 5 by the three main partitions 4. An auxiliary partition 6 is rotatably hinged at one end of the main partition 4 close to the inner wall of the inner protective tube 3. When the auxiliary partition 6 is not subjected to external force, one end of the auxiliary partition 6 is in a state of contact connection with the inner wall of the inner protective tube 3, thereby realizing the partition of the adjacent accommodating chambers 5. When it is necessary to change the accommodating chamber 5 through which the cable is passed, the auxiliary partition 6 is rotated to open a gap between the adjacent accommodating chambers 5 for the cable to pass through, and the cable can be moved from one accommodating chamber 5 to another accommodating chamber 5 through the opened gap.

[0034] The cables are isolated from each other by the independent accommodating chambers 5, so as to avoid the accumulation of heat and mutual wear between the cables caused by the accumulation of cables. At the same time, in order to ensure the stable installation of the cables in the accommodating chambers 5, a cable elastic clamp 7 connected to the inner wall of the inner protective tube 3 is provided in each accommodating chamber 5, and the cable in the accommodating chamber 5 is clamped and fixed by the cable elastic clamp 7. After the cables are threaded and fixed, the top cover 2 can be closed. When the cables need to be repaired, the top cover 2 can be disassembled and opened to facilitate the staff to inspect and maintain the buried cables.

[0035] Embodiment 2:

[0036] An underground cable external protection structure is improved on the basis of embodiment 1, such as Figure 5 As shown, a hinge hole is provided at one end of the main partition 4 close to the inner wall of the inner protective tube 3, one end of the auxiliary partition 6 is rotatably hinged to the hinge hole through a hinge shaft, and an elastic reset part 8 is mounted on the hinge shaft, and the other end of the auxiliary partition 6 is smoothly contact-connected with the inner wall of the inner protective tube 3.

[0037] The elastic force provided by the elastic reset member 8 makes the auxiliary baffle 6, when not subjected to external force, have one end of the auxiliary baffle 6 close to the inner wall of the inner protective tube 3 abut against the inner wall, thereby isolating adjacent accommodating chambers 5 from each other and effectively preventing the cables from contacting each other. When it is necessary to adjust the accommodating chamber 5 through which the cable is passed, the auxiliary baffle 6 is rotated by external force, so that one end of the auxiliary baffle 6 is separated from the inner wall of the inner protective tube 3 to form a gap for the cable to pass through, thereby realizing the cable passing through different accommodating chambers 5.

[0038] Furthermore, the elastic reset member 8 includes a reset torsion spring sleeved on the outside of the hinge shaft. After the external force is removed, under the elastic force of the reset torsion spring, one end of the auxiliary partition 6 returns to the position of contacting the inner wall of the inner protective tube 3.

[0039] The other parts of this embodiment are the same as those of Embodiment 1, and thus will not be described in detail.

[0040] Embodiment 3:

[0041] An underground cable external protection structure is improved on the basis of embodiment 1 or 2, such as Figure 6 As shown, the cable elastic clamp 7 includes a connecting plate 71 and a U-shaped elastic buckle 72. One side of the connecting plate 71 is connected to the inner wall of the inner protective tube 3, and the other side of the connecting plate 71 is fixedly installed with a U-shaped elastic buckle 72. The U-shaped elastic buckle 72 includes at least one opening for clamping the cable, and elastic clips are arranged on both sides of the opening.

[0042] One side of the connecting plate 71 is fixed to the inner wall of the inner protective tube 3 by connecting screws or welding, and the other side of the connecting plate 71 is installed with a U-shaped elastic buckle 72 by connecting screws. The U-shaped elastic buckle 72 is a metal elastic buckle or a plastic elastic buckle. The U-shaped elastic buckle 72 includes at least one opening for clamping the cable. The cable is placed between the elastic clips through the opening, and the cable is clamped and fixed by the elastic force of the elastic clips.

[0043] Furthermore, an anti-wear pad is provided on the clamping surface of the U-shaped elastic buckle 72, and the anti-wear pad is a nylon pad. By providing the anti-wear pad, the wear between the outside of the cable and the clamping surface of the U-shaped elastic buckle 72 can be improved, thereby extending the service life of the cable and the U-shaped elastic buckle 72.

[0044] The other parts of this embodiment are the same as those of Embodiment 1 or 2, and thus will not be described in detail.

[0045] Embodiment 4:

[0046] An underground cable external protection structure is improved on the basis of any one of embodiments 1-3, such as Figure 1As shown, the top of the outer protective tube 1 is provided with a stepped opening, and the bottom of the top cover 2 is provided with a stepped boss that fits with the stepped opening. The stepped boss fits with the stepped opening to achieve rapid positioning and installation of the top cover 2 on the top of the outer protective tube 1.

[0047] Furthermore, a seal is provided between the mating surfaces of the stepped boss and the stepped opening. The seal is a sealing strip. By providing the seal, the sealing between the top opening of the outer protective tube 1 and the top cover 2 can be ensured, effectively preventing external soil and moisture from entering the outer protective tube 1.

[0048] The other parts of this embodiment are the same as any one of Embodiments 1-3, so they are not described again.

[0049] Embodiment 5:

[0050] An underground cable external protection structure is improved on the basis of any one of embodiments 1-4, such as Figure 1 and Figure 3 As shown, a protective cage 9 is provided outside the outer protective tube 1, and a strap is tied outside the protective cage 9, so that the protective cage 9 limits the top cover 2 at the top of the outer protective tube 1. The protective cage 9 is a mesh plastic cage, and the top cover 2 is pressed and fixed to the top of the outer protective tube 1 by the protective cage 9 to prevent the top cover 2 from loosening.

[0051] Furthermore, at least one set of lifting ears is provided on the top of the top cover 2. When the top cover 2 is disassembled, the top cover 2 can be conveniently lifted through the lifting ears, thereby improving the efficiency of disassembly and assembly of the top cover 2.

[0052] The other parts of this embodiment are the same as any one of Embodiments 1-4, so they are not described again.

[0053] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present invention fall within the protection scope of the present invention.

Claims

1. An underground cable external protection structure, comprising an external protection tube (1), wherein the top of the external protection tube (1) is provided with an openable top cover (2), characterized in that: An inner protective tube (3) is arranged inside the outer protective tube (1), and a plurality of main partitions (4) are arranged circumferentially inside the inner protective tube (3), and the plurality of main partitions (4) divide the interior of the inner protective tube (3) into a plurality of independent accommodating chambers (5); an auxiliary partition (6) is rotatably hingedly connected to one end of the main partition (4) close to the inner wall of the inner protective tube (3), and a cable elastic clamp (7) connected to the inner wall of the inner protective tube (3) is arranged inside each accommodating chamber (5), and an opening for allowing a cable to enter and exit the accommodating chamber (5) is arranged at a position on the inner wall of the inner protective tube (3) corresponding to the accommodating chamber (5).

2. The underground cable external protection structure according to claim 1, characterized in that: A hinge hole is provided at one end of the main baffle plate (4) close to the inner wall of the inner protective tube (3); one end of the auxiliary baffle plate (6) is rotatably hinged to the hinge hole via a hinge shaft, and an elastic reset member (8) is sleeved on the hinge shaft; the other end of the auxiliary baffle plate (6) is smoothly contact-connected to the inner wall of the inner protective tube (3).

3. The underground cable external protection structure according to claim 2, characterized in that: The elastic reset member (8) comprises a reset torsion spring sleeved on the outside of the hinge shaft.

4. The underground cable external protection structure according to any one of claims 1 to 3, characterized in that: The cable elastic clamp (7) comprises a connecting plate (71) and a U-shaped elastic buckle (72); one side of the connecting plate (71) is connected to the inner wall of the inner protective tube (3); the other side of the connecting plate (71) is fixedly mounted with the U-shaped elastic buckle (72); the U-shaped elastic buckle (72) comprises at least one opening for clamping a cable, and elastic clips are arranged on both sides of the opening.

5. The underground cable external protection structure according to claim 4, characterized in that: An anti-wear pad is provided on the clamping surface of the U-shaped elastic buckle (72).

6. An underground cable external protection structure according to any one of claims 1 to 3, characterized in that: The top of the outer protective tube (1) is provided with a stepped opening, and the bottom of the top cover (2) is provided with a stepped boss that is engaged with the stepped opening.

7. The underground cable external protection structure according to claim 6, characterized in that: A sealing member is arranged between the matching surfaces of the stepped boss and the stepped opening.

8. An underground cable external protection structure according to any one of claims 1 to 3, characterized in that: A protective cage (9) is arranged outside the outer protective tube (1), and a strap is tied to the outside of the protective cage (9). The protective cage (9) limits the top cover (2) at the top of the outer protective tube (1).

9. The underground cable external protection structure according to claim 8, characterized in that: At least one set of lifting ears is provided on the top of the top cover (2).

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