Building exterior wall penetrating cable pre-embedding device

By adopting measures such as cylindrical design, sealing ring, activated carbon moisture-proof layer and grouting hole in the pre-embedded cable device on the building exterior wall, the problem of insufficient air tightness was solved, the stability of the device was achieved and the installation was simplified, and the project cost was reduced.

CN224006468UActive Publication Date: 2026-03-17ANHUI ZHONGQING CONSTR DEV CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-05
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

The existing pre-embedded cable installations on building exterior walls have poor airtightness, allowing moisture to enter and affecting the operational stability of cables and equipment. This can lead to short circuits or damage to equipment, and the installation process is complex, increasing project costs and delays.

Method used

The device features a cylindrical design with an internal sealing ring and activated carbon desiccant layer. It is connected by bolts and nuts, and externally equipped with grouting holes and sealing rings to enhance airtightness and structural stability. The injection of fixative through the grouting holes ensures the stability and sealing of the device.

Benefits of technology

It improves the airtightness and structural stability of the cable pre-embedded device, prevents moisture intrusion, reduces equipment damage, simplifies the installation process, and reduces project costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a building outer wall penetrating cable pre-embedding device which comprises a cylinder body, a first connecting cylinder is welded to the top of the cylinder body, a first sealing ring is fixedly connected to the interior of the first connecting cylinder, the first sealing ring is installed in the first connecting cylinder, activated carbon is arranged in a first fixing ring, one side of the first fixing ring is provided with an air hole, and the other side of the first fixing ring is provided with a second sealing ring. A second fixing ring is fixedly connected to the outer side wall of the first connecting cylinder, a connecting hole is formed in the second fixing ring, a bolt is fixedly connected to the interior of the second fixing ring, a nut is in threaded connection with the outer side wall of the bolt, a gasket is arranged on one side of the nut, and the gasket is movably connected to the outer side wall of the bolt. In the actual use process, the second sealing ring is further installed above the fixing groove in the bottom of the barrel body, the air tightness of equipment can be further improved, the air tightness of the equipment can be improved accordingly, the surface of the second connecting barrel is matched with the surface of the fixing groove in a tangent mode, and therefore equipment assembly is completed.
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Description

Technical Field

[0001] This utility model relates to the field of anti-leakage technology, specifically to a cable pre-embedded device for penetrating building exterior walls. Background Technology

[0002] The incoming cables of high-rise buildings typically refer to the cable system connecting the high-rise building to the power grid. They are used to transmit electricity from the power supply network to the electrical systems of various units inside the building. These cables need to have high fire resistance and safety to cope with fire and other safety risks that high-rise buildings may face. The building exterior wall cable pre-embedded device is a device installed inside the building exterior wall to fix and protect the cable. It is usually used to protect the cable from the influence of the external environment, while aesthetically hiding the cable in the building structure. This device can effectively prevent the cable from being damaged or accidentally touched by external objects, thus improving the safety and reliability of the cable.

[0003] A search revealed that Chinese patent CN220797742U discloses a pre-embedded device for preventing leakage of cable openings in basement exterior walls. This patent describes a device with a leakage-proof component installed at one end of a connecting cylinder. The component includes an installation cylinder detachably connected to the connecting cylinder, which is fitted onto the outer circumference of the connecting cylinder at a corresponding position. An annular baffle is fixedly connected to the opening of the installation cylinder. An annular clamp is located on the side of the annular baffle near the connecting cylinder, and the clamp can reciprocate along the axis of the installation cylinder. A flexible sealing ring with a circular cross-section is installed between the annular baffle and the clamp. After the cable is passed through the flexible sealing ring into the basement, the clamp is moved to compress the flexible sealing ring, causing it to deform and seal against the corresponding position of the cable. This provides some compensation for the cable's thermal expansion and contraction due to seasonal changes, thus improving the waterproof performance of the wall to a certain extent.

[0004] The cable pre-embedded device in this scheme has poor airtightness, which can cause moisture to enter, affecting the working stability of the cable and related equipment, and may even lead to short circuits or damage to the equipment. The equipment installation process is complicated or takes a long time, which can cause delays in the overall project, thereby increasing project costs and resource input. In order to solve this technical problem, this utility model proposes a cable pre-embedded device through the exterior wall of a building. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] The cable pre-embedded device in this scheme has poor airtightness, which can cause moisture to enter, affecting the working stability of the cable and related equipment, and may even lead to short circuits or damage to the equipment. The equipment installation process is complicated or takes a long time, which can cause delays in the overall project, thereby increasing project costs and resource input. In order to solve this technical problem, this utility model proposes a cable pre-embedded device through the exterior wall of a building.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a pre-embedded cable device for penetrating building exterior walls, comprising a cylindrical body, a connecting cylinder 1 welded to the top of the cylindrical body, a sealing ring 1 fixedly connected inside the connecting cylinder 1, an activated carbon disposed inside the connecting cylinder 1, an air hole provided on one side of the fixing ring 1, a fixing ring 2 fixedly connected to the outer wall of the connecting cylinder 1, a connecting hole provided inside the fixing ring 2, a bolt fixedly connected inside the fixing ring 2, a nut threadedly connected to the outer wall of the bolt, a washer disposed on one side of the nut, and the washer movably connected to the outer wall of the bolt.

[0009] Preferably, a grouting hole is provided at the bottom of the outer side wall of the cylinder, a fixing groove is provided inside the cylinder, and a connecting cylinder II is installed inside the cylinder, with the connecting cylinder II installed inside the fixing groove.

[0010] Preferably, a second sealing ring is provided at the bottom of the inner wall of the cylinder.

[0011] Preferably, a protective pad is provided around the inner sidewall of the cylinder.

[0012] Preferably, the second fixing ring is arranged in a linear array, and the second fixing ring is made of stainless steel.

[0013] Preferably, the pores are arranged in a ring array, and the shape of the pores is a circular through hole.

[0014] (III) Beneficial Effects

[0015] This utility model provides a cable pre-embedding device for penetrating building exterior walls. It has the following beneficial effects:

[0016] (1) Multiple components, including sealing ring 1 and fixing ring 1, are installed inside the connecting cylinder 1. An activated carbon dehumidification layer is set inside the fixing ring 1. The dehumidification layer can absorb the humid gas inside the equipment through multiple pores. The pores are distributed in a ring array on the surface of the pores, which can absorb moisture from multiple directions, thereby reducing the damage of moisture to the equipment. A sealing ring 2 is also installed above the fixing groove at the bottom of the cylinder, which can further increase the airtightness of the equipment, thereby increasing the airtightness of the equipment.

[0017] (2) The grouting holes on the cylinder allow the fixative liquid to be placed inside the equipment and fit into the surface of the connecting cylinder and the surface of the fixing groove, thus completing the equipment assembly. Multiple grouting holes are provided on the equipment to facilitate the uniform penetration of the fixative liquid, thereby making the equipment more stable. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the cylindrical structure of this utility model;

[0020] Figure 3 This is a side view of the present invention.

[0021] Figure 4 This is a schematic diagram of the cylindrical structure of this utility model.

[0022] In the diagram: 1. Cylinder body; 2. Connecting cylinder one; 3. Sealing ring one; 4. Fixing ring one; 5. Air hole; 6. Fixing ring two; 7. Bolt; 8. Nut; 9. Grouting hole; 10. Fixing groove; 11. Sealing ring two; 12. Connecting cylinder two; 13. Protective pad. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] Please see Figure 1-4 This utility model provides a technical solution:

[0025] Example 1: A pre-embedded cable device for penetrating building exterior walls includes a cylinder 1, with a connecting cylinder 2 welded to the top of the cylinder 1. A sealing ring 3 is fixedly connected inside the connecting cylinder 2. The sealing ring 3 is installed inside the connecting cylinder 2, ensuring good sealing at the connection point and preventing external liquids or gases from entering the pre-embedded device. This is crucial for protecting the internal cables and equipment from external environmental influences and ensuring their long-term stable operation. Activated carbon is placed inside the fixing ring 4, and an air hole 5 is opened on one side of the fixing ring 4. The fixed ring 4 and the activated carbon inside the fixing ring 4 absorb and remove internal moisture through the air hole 5, thereby reducing the potential damage of internal moisture to the cables and equipment. This dehumidification function ensures the reliability and durability of the equipment in high humidity environments. A fixing ring 6 is fixedly connected to the outer wall of the connecting cylinder 2. The fixing ring 6 has a connecting hole inside and a bolt 7 is fixedly connected inside. A nut 8 is threadedly connected to the outer wall of the bolt 7. The fixing ring 6, bolt 7, and nut 8 are fixed to the outer wall of the connecting cylinder 2, which enhances the structural stability and durability of the device. The setting of the gasket further ensures the tightness of the bolt 7 connection and effectively prevents loosening caused by external vibration or impact. A gasket is set on one side of the nut 8 and is movably connected to the outer wall of the bolt 7.

[0026] Example 2: The difference between this example and Example 1 is that the bottom of the outer wall of the cylinder 1 is provided with a grouting hole 9, a fixing groove 10, and a grouting hole 9 at the bottom of the cylinder 1. The fixing groove 10 inside allows the fixing liquid to be evenly injected into the device through the grouting hole 9 during installation. The fixing groove 10 helps to accurately position the connecting cylinder 12, ensuring the stability and accuracy of the device after installation. The fixing groove 10 is opened inside the cylinder 1, and the connecting cylinder 12 is installed inside the cylinder 1. The connecting cylinder 12 is installed inside the fixing groove 10. A sealing ring 11 is provided at the bottom of the inner wall of the cylinder 1. This further enhances the sealing performance of the device, ensuring a tight connection between the connecting cylinder 12 and the cylinder 1, effectively preventing external liquids or gases from entering the embedded device and protecting the internal cables and equipment from damage. Protective pads 13 are installed around the inner wall of the cylinder 1. The protective pads 13 are installed around the inner wall of the cylinder 1 to provide an additional protective layer to prevent the cables from being damaged by external impacts or collisions. This protection measure ensures that the device is not subject to physical damage from the external environment during long-term use, guaranteeing the stability and reliability of the equipment. The fixing rings 6 are arranged in a linear array and are made of stainless steel. The vents 5 are arranged in a ring array and are circular through holes.

[0027] During operation, a connecting cylinder 2 is first installed on the top of the cylinder 1. Inside the connecting cylinder 2, multiple sealing rings 3 and fixing rings 4 are installed. The fixing rings 4 have an activated carbon desiccant layer inside, which absorbs humid gases from inside the equipment through multiple pores 5. These pores 5 are arranged in a ring array on their surface, absorbing moisture from multiple directions and reducing damage to the equipment. The sealing rings 3 ensure the seal at the connection point, preventing liquid or gas leakage or entry. Fixing rings 6 are also installed on the outside of the connecting cylinder 2. Multiple sets of fixing rings 6 are connected by bolts 7 and fixed to gaskets by nuts 8, thereby increasing the equipment's strength. For stability, a fixing groove 10 is provided inside the lower part of the cylinder 1. The top of the connecting cylinder 2 12 is chamfered so that it can be easily embedded into the fixing groove 10. Then, the fixing liquid is placed into the inside of the equipment through the grouting hole 9 provided on the cylinder 1, and the surface of the connecting cylinder 2 12 is in contact with the surface of the fixing groove 10, thus completing the equipment assembly. Multiple grouting holes 9 are provided on the equipment to facilitate the uniform penetration of the fixing liquid. A sealing ring 2 11 is also installed above the fixing groove 10 at the bottom of the cylinder 1 to further increase the airtightness of the equipment. A protective pad 13 is also installed inside the cylinder 1. The protective pad 13 can protect the cable and protect the cable from external damage when the cable is subjected to impact or collision.

[0028] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A device for embedding a cable through an external wall of a building, characterized in that: The utility model relates to a sealing ring is fixedly connected in the inside of the connecting cylinder no (2) of the cylinder (1) top welding, the inside of sealing ring no (3) is installed in the connecting cylinder no (2), the inside of fixed ring no (4) is provided with activated carbon, one side of fixed ring no (4) is opened gas hole (5), the outside wall of connecting cylinder no (2) is fixedly connected with fixed ring no (6), the inside of fixed ring no (6) is opened with connecting hole, the inside of fixed ring no (6) is fixedly connected with bolt (7), the outside wall of bolt (7) is threadedly connected with nut (8), one side of nut (8) is provided with gasket, gasket is movably connected in the outside wall of bolt (7).

2. The device for embedding cables through building outer walls according to claim 1, characterized in that: The bottom of the outer side wall of the cylinder (1) is provided with a grouting hole (9), the inside of the cylinder (1) is provided with a fixed groove (10), the inside of the cylinder (1) is provided with a connecting cylinder (12), and the connecting cylinder (12) is installed in the inside of the fixed groove (10).

3. The device according to claim 1, wherein: The bottom of the inner side wall of the cylinder (1) is provided with a sealing ring (11).

4. The device according to claim 1, wherein: The inner side wall of the cylinder (1) is provided with a protective pad (13) around.

5. The apparatus of claim 1, wherein: The fixed ring (6) is arranged in a straight line, and the material of the fixed ring (6) is stainless steel.

6. The device of claim 1, wherein: The gas hole (5) is arranged in a ring shape, and the shape of the gas hole (5) is a circular through hole.

Citation Information

Patent Citations

  • Anti-leakage pre-burying device for cable reserved hole of basement outer wall

    CN220797742U