Secondary-pouring-free cable protection pipe wall-penetrating device

Abstract

This utility model discloses a cable protection pipe wall-penetrating device that eliminates the need for secondary pouring, comprising a first sleeve body and a second sleeve body. The first and second sleeve bodies are connected at their opposite ends by threads, and each end is provided with an annular chuck, forming a wall panel clamping position between the two annular chucks. A limiting ring is provided on the inner wall of the end of the first sleeve body away from the second sleeve body, and the limiting ring transitions to the end face of the first sleeve body through an arc surface. A stepped surface is provided on the inner wall of the end of the second sleeve body away from the first sleeve body, and a first sealing rubber ring is provided on the stepped surface. A second sealing rubber ring is provided on the side of the annular chuck of the second sleeve body facing the wall panel clamping position. This utility model provides a limiting ring at the front end of the sleeve body, which can precisely control the position of the cable protection pipe and effectively prevent its displacement; two sealing rubber rings are provided at the water-facing end of the sleeve body, which can effectively block the infiltration of external moisture and extend the service life of the cable.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and in particular to a cable protection pipe through-wall device that eliminates the need for secondary pouring. Background Technology

[0002] In infrastructure construction across numerous sectors, including power and industry, cable laying is a crucial step. Currently, to protect the urban landscape, underground cables are increasingly being chosen for urban power lines. Electricity ducts, composed of multiple conduits arranged in a series, are widely used in the power industry due to their small footprint, ease of construction, low cost, and short construction period. These ducts are inserted into spaced cable manholes. When inserting electricity ducts into cable manholes, wall sleeves are required to protect the cable conduits.

[0003] However, traditional wall bushings have revealed many drawbacks:

[0004] 1. When fixing the position of the cable protection pipe, the lack of precise and effective limiting means makes the cable protection pipe prone to axial displacement due to external force pulling, self-weight, or wall vibration. This may not only cause the cable to twist or bend inside the pipe, affecting the stability of power transmission, but may also cause wear on the cable sheath, leading to safety hazards.

[0005] 2. The installation process of traditional sleeves is often cumbersome, requiring a lot of manpower and resources, and subsequent maintenance is inconvenient. Once a problem occurs, it is difficult to quickly troubleshoot and repair it.

[0006] 3. Traditional cable protection pipes and wall bushings have gaps, requiring secondary grouting, which greatly increases the complexity and time cost of construction, especially in areas with limited space or complex environments, making construction more difficult. Secondly, the investment in grouting materials and labor costs will directly increase project costs and may put pressure on the project budget. Finally, if the grouting material is not selected properly, it may lead to problems such as cracking, shrinkage, or reduced waterproof performance, thereby affecting the long-term safe operation of the cable. Utility Model Content

[0007] To address the aforementioned issues, this invention provides a cable protection pipe wall penetration device that eliminates the need for secondary pouring. This device can precisely limit the position of the cable protection pipe, has good waterproof performance, and is easy to install and maintain.

[0008] Therefore, the technical solution of this utility model is: a cable protection pipe wall penetration device that eliminates the need for secondary pouring, comprising a first sleeve body and a second sleeve body, the first sleeve body and the second sleeve body being connected at opposite ends by threads, and each having an annular chuck at the other end, with a wall panel clamping position formed between the two annular chucks; a limiting ring is provided on the inner wall of the end of the first sleeve body away from the second sleeve body, and the limiting ring transitions to the end face of the first sleeve body through an arc surface; a stepped surface is provided on the inner wall of the end of the second sleeve body away from the first sleeve body, and a first sealing rubber ring is provided on the stepped surface; a second sealing rubber ring is provided on the side of the annular chuck of the second sleeve body facing the wall panel clamping position.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: one end of the first sleeve body is provided with an external thread structure, and one end of the second sleeve body is provided with an internal thread structure. The first sleeve body is inserted into the second sleeve body, and the distance between the two is adjusted by the threads.

[0010] Based on the above scheme and as a preferred embodiment of the above scheme: the internal thread structure of the second sleeve body is connected to the internal stepped surface in sequence through a constriction section and a flaring section.

[0011] Based on the above scheme and as a preferred embodiment of the above scheme: the annular chuck of the second sleeve body is tightly fitted to the wall through the second sealing ring.

[0012] Based on the above scheme and as a preferred embodiment of the above scheme: the second sleeve body is the cable protection pipe insertion end, and the second sleeve body is tightly fitted with the cable protection pipe through the first sealing rubber ring.

[0013] Based on the above scheme and as a preferred embodiment of the above scheme: the front end of the cable protection pipe abuts against the limiting ring of the first sleeve body.

[0014] During installation, the first and second sleeve bodies are disassembled and inserted into the wall from both ends. Then, the sleeve bodies are fixed to the wall by rotating them. The second sleeve body is the water-facing end of the wall. The annular chuck of the second sleeve body is tightly fitted to the wall through the second sealing ring to form a waterproof barrier, ensuring that water on the outside of the wall cannot seep in.

[0015] Then, slowly align one end of the cable protection tube with the opening of the second sleeve body and gently push it so that the front end of the cable protection tube fits against the limiting ring of the first sleeve body. During this process, the limiting ring uses its width to tightly press against the cable protection tube to prevent it from shifting. At the same time, the end face of the limiting ring and the first sleeve body are connected by an arc surface so that the cable sheath will not be damaged when the cable passes through the limiting ring.

[0016] Once the cable protection pipe is fully inserted into the main body of the conduit, the first sealing ring, under its elastic action, tightly adheres to the cable protection pipe, forming a waterproof barrier to ensure that moisture from the outside of the wall cannot seep in.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. A limiting ring is provided at the front end of the sleeve body, which can accurately control the position of the cable protection pipe, effectively prevent its displacement, ensure the stable laying of the cable in the pipe, reduce the risk of power transmission failure caused by cable twisting and bending, and improve the reliability of the system; at the same time, the limiting ring is rounded and chamfered to avoid damage to the cable sheath.

[0019] 2. Two sealing rings are installed at the water-facing end of the sleeve body. With their excellent elasticity and sealing performance, they form a solid waterproof barrier, which can effectively prevent external moisture from seeping in, create a dry operating environment for the cable, significantly extend the service life of the cable, and reduce problems such as the decline in insulation performance caused by moisture.

[0020] 3. The first and second sleeve bodies are connected by threads, which can be used for wall panels of different thicknesses. It has strong versatility, avoids secondary pouring, greatly simplifies construction difficulty, reduces construction costs, and has good stability and long service life. Attached Figure Description

[0021] Figure 1 , Figure 2 This is a schematic diagram of the structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the split structure of this utility model;

[0023] Figure 4 This is a cross-sectional view of the structure of this utility model;

[0024] Figure 5 This is an installation diagram of the present invention;

[0025] Figure 6 for Figure 5 A magnified view of a portion of the image;

[0026] Figure 7 for Figure 6 A magnified view of a portion of the image.

[0027] The components in the diagram are labeled as follows: First sleeve body 1, external thread structure 11, first annular chuck 12, limiting ring 13, arc surface 14, second sleeve body 2, internal thread structure 21, second annular chuck 22, constricted section 23, flared section 24, stepped surface 25, cable protection pipe 3, first sealing ring 41, second sealing ring 42, cable 5, wall 6. Detailed Implementation

[0028] In the description of this utility model, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0030] See the attached drawings. The cable wall sleeve described in this embodiment includes a first sleeve body 1 and a second sleeve body 2 (for ease of description, the first sleeve body is defined as being located on the right side of the second sleeve body). The left end of the first sleeve body 1 is provided with an external thread structure 11, and the outer side of the right end of the first sleeve body 1 is provided with a first annular chuck 12. The right end of the second sleeve body 2 is provided with an internal thread structure 21, and the outer side of the left end of the second sleeve body 2 is provided with a second annular chuck 22. The first sleeve body 1 is inserted into the second sleeve body 2, and the distance between the first annular chuck 12 and the second annular chuck 22 can be adjusted by the threads, so that the sleeve can be used for installation on walls of different thicknesses. The second sleeve body 2 is the water-facing end outside the wall. The second annular chuck 22 of the second sleeve body 2 is tightly fitted to the wall through the second sealing ring 42. The radial cross section of the second sealing ring 42 is square. The inner diameter of the second sealing ring 42 is slightly larger than the outer diameter of the second annular chuck 22. Utilizing the excellent elasticity of silicone rubber, after the first sleeve body and the second sleeve body are fixed to the wall, the second sealing ring 42 can quickly and tightly fit the wall, sealing the gap between the two and forming a reliable waterproof barrier.

[0031] The inner thread structure 21 inside the second sleeve body 2 is provided with a constriction section 23 and a flaring section 24 on one side. The design of the constriction section 23 and the flaring section 24 can limit the length of the first tubular body 1 that can be inserted.

[0032] A limiting ring 13 is provided on the inner wall of the right end face of the first sleeve body 1. The front end of the cable protection pipe 3 abuts against the limiting ring 13 of the first sleeve body 1, and the width of the limiting ring 13 is greater than the wall thickness of the cable protection pipe 3, which limits its movement and prevents the cable protection pipe 3 from shifting. The limiting ring 13 transitions to the end face of the first sleeve body 1 through an arc surface 14, i.e., a rounded chamfer is made to avoid damage to the cable sheath.

[0033] The inner wall of the left end of the second sleeve body 2 is provided with a stepped surface 25, and a first sealing rubber ring 41 is provided on the stepped surface 25. The inner diameter of the first sealing rubber ring 41 is slightly larger than the outer diameter of the cable protection tube 3. Utilizing the excellent elasticity of silicone rubber, when the cable protection tube 3 is inserted, the first sealing rubber ring 41 can quickly and tightly fit the cable protection tube 3, tightly sealing the gap between the two and forming a reliable waterproof barrier.

[0034] During installation, the first sleeve body 1 and the second sleeve body 2 are disassembled and inserted into the wall 6 from both ends. The sleeve body is then fixed to the wall 6 by rotating it. The annular chuck of the second sleeve body fits tightly against the wall via a second sealing ring, forming a waterproof barrier to prevent moisture from seeping in. Next, one end of the cable protection tube 3 is slowly aligned with the opening of the second sleeve body 2 and gently pushed until the front end of the cable protection tube 3 is against the limiting ring 13 of the first sleeve body 1. During this process, the limiting ring 13 uses its width to firmly press against the cable protection tube 3, preventing displacement. Simultaneously, the limiting ring 13 is connected to the end face of the first sleeve body 3 via an arc surface 14, ensuring that the cable 5 is not damaged when passing through the limiting ring 13.

[0035] After the cable protection pipe 3 is fully inserted into the main body of the sleeve, the first sealing ring 41 fits tightly against the cable protection pipe under the action of elasticity, forming a waterproof barrier to ensure that moisture on the outside of the wall cannot seep in.

[0036] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A second pour free cable protection pipe wall-penetrating device, characterized in that: The device includes a first sleeve body and a second sleeve body. The first sleeve body and the second sleeve body are connected at opposite ends by threads, and each end is provided with an annular chuck, forming a wall panel clamping position between the two annular chucks. A limiting ring is provided on the inner wall of the end of the first sleeve body away from the second sleeve body, and the limiting ring transitions to the end face of the first sleeve body through an arc surface. A stepped surface is provided on the inner wall of the end of the second sleeve body away from the first sleeve body, and a first sealing rubber ring is provided on the stepped surface. A second sealing rubber ring is provided on the side of the annular chuck of the second sleeve body facing the wall panel clamping position.

2. A secondary pour free cable protection tube wall-penetrating device according to claim 1, characterized in that: The first sleeve body has an external thread structure at one end, and the second sleeve body has an internal thread structure at one end. The first sleeve body is inserted into the second sleeve body, and the distance between the two is adjusted by the threads.

3. A secondary pour free cable protection tube wall-penetrating device according to claim 2, characterized in that: The internal thread structure of the second sleeve body is connected to the internal stepped surface through a constriction section and a flare section in sequence.

4. The cable protection pipe wall penetration device without secondary pouring as described in claim 1, characterized in that: The annular chuck of the second sleeve body is tightly fitted to the wall through the second sealing ring.

5. A cable protection pipe wall penetration device without secondary pouring as described in claim 1, characterized in that: The second sleeve body is the cable protection pipe insertion end, and the second sleeve body is tightly fitted with the cable protection pipe through the first sealing rubber ring.

6. The cable protection pipe wall penetration device without secondary pouring as described in claim 5, characterized in that: The front end of the cable protection pipe abuts against the limiting ring of the first sleeve body.

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