Fireproof plugging structure for vertical shaft cable perforation

Abstract

The utility model relates to a kind of shaft cable perforation fireproof plugging structure, belong to cable fireproof plugging technical field, it includes with the fireproof partition corresponding cable shaft, fireproof partition is set in pairs at the opening of cable shaft upper and lower sides, fireproof partition is equipped with the through-hole corresponding cable bundle in cable shaft, the through-hole of two fireproof partitions is in pairs corresponding up and down, cable bundle and the through-hole of fireproof partition between fireproof module are equipped with corresponding, fireproof module forms tight wrapping to cable bundle inside it, and fills sealing layer between fireproof module and cable bundle, fireproof module and fireproof partition and the wall of fireproof partition and cable shaft.This utility model is simple to install, its anti-disturbance ability is stronger, fireproof performance is better, and durability is stronger.

Description

Technical Field

[0001] This utility model belongs to the field of cable fireproof sealing technology, and in particular relates to a fireproof sealing structure for cable penetration in building shafts. Background Technology

[0002] In the field of building electrical systems, vertical shafts, as vertical passages connecting different floors, make the fireproof sealing of cable penetrations crucial. Traditional sealing methods often involve filling with fire-retardant cement. Construction workers manually knead the cement and fill the gaps between the cable and the shaft wall. However, this method has several drawbacks: First, the molding process of fire-retardant cement is complex, requiring repeated manual molding, making construction difficult and demanding on skilled workers, resulting in low efficiency and easily affecting construction quality due to the workers' skill level. Second, fire-retardant cement is a malleable material lacking a rigid supporting structure, making it prone to displacement and deformation due to external disturbances during cable maintenance, addition, or replacement. This can compromise the overall integrity of the sealant. Furthermore, the plasticity of fireproof putty causes it to soften and flow under high temperatures, making it unable to maintain a stable sealant shape, thus weakening its fireproofing effect and making it difficult to effectively block the spread of flames and smoke. Moreover, after long-term use, fireproof putty is prone to cracking and shrinkage due to changes in ambient temperature and humidity, leading to the re-exposure of gaps and a significant reduction in fireproofing and smoke-blocking effectiveness. Finally, a single material is insufficient to meet the sealing requirements of complex cable layouts and irregular holes. Therefore, a more stable, durable, and adaptable fireproof sealing structure is urgently needed. Utility Model Content

[0003] The purpose of this utility model is to provide a fireproof sealing structure for vertical shaft cable perforations that has better anti-disturbance capabilities, is easier to install, has better adaptability, and is more durable, in order to solve the technical problems of existing cable sealing structures that rely heavily on the technical skills of construction personnel, have a simple structure, poor stability, and are easily affected by external disturbances.

[0004] To achieve the above objectives, the specific technical solution of this utility model is as follows:

[0005] A fireproof sealing structure for cable penetration in a cable shaft includes fireproof partitions corresponding to the cable shaft. The fireproof partitions are installed in pairs at the openings on the upper and lower sides of the cable shaft. The fireproof partitions have through holes corresponding to the cable bundles inside the cable shaft. The through holes of the two fireproof partitions are paired vertically. A corresponding fireproof module is installed between the cable bundles and the two through holes of the fireproof partitions. The fireproof module tightly wraps the cable bundles inside it. A sealing layer is filled between the fireproof module and the cable bundles, between the fireproof module and the fireproof partitions, and between the fireproof partitions and the wall of the cable shaft.

[0006] Furthermore, the through hole is a polygon corresponding to the internal cable bundle. The fireproof module includes multiple fireproof vertical plates arranged sequentially around the cable bundle. The multiple fireproof vertical plates form a polygonal hollow column corresponding to the through hole. The edges of adjacent fireproof vertical plates overlap each other. The upper and lower ends of the fireproof vertical plates are respectively connected to the fireproof partition sidewall at the corresponding side through hole.

[0007] Furthermore, the wall sidewalls at the upper and lower openings of the cable shaft are provided with grooves corresponding to the fireproof partitions. The two fireproof partitions are respectively embedded in the grooves at the corresponding ends of the cable shaft. The outer ring of the fireproof partition is provided with multiple bolt holes, which are fixedly connected to the wall sidewalls of the cable shaft by external expansion bolts.

[0008] Furthermore, the fireproof partition is composed of multiple sheets spliced ​​together.

[0009] Furthermore, the fireproof partition is made of fireproof board, the fireproof vertical plate is made of inorganic fire-resistant material, and the sealing layer is made of fireproof sealant to fill the gaps between the fireproof module and the cable bundle, the fireproof module and the fireproof partition, and the fireproof partition and the cable shaft wall.

[0010] This utility model of a fireproof sealing structure for cable perforation in vertical shafts consists of multiple layers working together, resulting in stronger resistance to disturbance, better fire resistance, greater durability, and a longer service life. It is also simple to install, has lower technical requirements, higher construction efficiency, and is easier to install and repair, making it more adaptable. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure during installation of this utility model;

[0012] Figure 2 This utility model Figure 1 Top view;

[0013] Figure 3 This utility model Figure 2 Internal structure diagram;

[0014] Figure 4 This utility model Figure 1 Another structure of the top view;

[0015] The markings in the diagram are as follows: 1. Fireproof partition; 11. Bolt hole; 2. Fireproof module; 21. Fireproof vertical plate; 3. Sealing layer; 4. Cable bundle; 5. Wall; 51. Groove. Detailed Implementation

[0016] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of a fireproof sealing structure for cable perforations in vertical shafts.

[0017] like Figure 1-3 As shown, the fireproof sealing structure for cable penetration in a cable shaft of this utility model includes a fireproof module 2 and a fireproof partition 1. The fireproof partition 1 corresponds to the cable shaft, and a pair of corresponding fireproof partitions 1 are provided at the openings on the upper and lower sides of the cable shaft. The fireproof partition 1 is provided with through holes corresponding to the cable bundles 4 in the cable shaft. The through holes on the two fireproof partitions 1 are paired vertically. Multiple pairs of through holes can be provided on the two fireproof partitions 1 according to the number of cable bundles 4 in the cable shaft. In this embodiment, there is one cable bundle 4 in the cable shaft, and the two fireproof partitions 1 are provided with through holes corresponding to the cable bundle 4. A pair of through holes allow the cable bundle 4 to pass through the two fireproof partitions 1 of the cable shaft. The fireproof module 2 is located between the two through holes of the two fireproof partitions 1 and the cable bundle 4. Its inner ring tightly wraps around the perimeter of the cable bundle 4, and its outer ring is installed correspondingly to the fireproof partitions 1. A sealing layer 3 is filled between the fireproof module 2 and the cable bundle 4, between the fireproof module 2 and the fireproof partitions 1, and between the fireproof partitions 1 and the wall 5 of the cable shaft. The fireproof module 2, the fireproof partitions 1, and the sealing layer 3 work together to form a multi-layered and all-round fireproof seal for the cable penetrations in the cable shaft.

[0018] Furthermore, the through holes on the fireproof partition 1 are cut into polygons corresponding to the internal cable bundle 4. The fireproof module 2 includes fireproof vertical plates 21. Multiple fireproof vertical plates 21 are arranged sequentially around the cable bundle 4 to form polygonal hollow columns corresponding to the through holes. The edges of adjacent fireproof vertical plates 21 overlap each other. The upper and lower ends of the fireproof vertical plates 21 are respectively connected to the side wall of the fireproof partition 1 at the corresponding side through hole. The two are fixedly connected. In this embodiment, the side wall of the fireproof partition 1 corresponding to the through hole extends vertically into the inner side of the cable shaft to form a connecting platform. The inner side wall of the connecting platform fits against the outer side wall of the corresponding side of the fireproof module 2 and is fixedly connected together.

[0019] Furthermore, a pair of corresponding grooves 51 are provided at the openings at the upper and lower ends of the cable shaft. The grooves 51 are located at the top of the side wall of the wall 5 at the corresponding end of the cable shaft. Two fireproof partitions 1 are respectively embedded in the grooves 51 at the corresponding ends of the cable shaft. The outer ring of the fireproof partition 1 is provided with bolt holes 11. Multiple bolt holes 11 are evenly distributed around the outer ring of the fireproof partition 1 in a circumferential direction. The fireproof partition 1 can be fixedly connected to the side wall of the wall 5 of the cable shaft by external expansion bolts through the bolt holes 11, and then fixedly connected to the grooves 51 at the corresponding ends of the cable shaft.

[0020] Furthermore, such as Figure 4As shown, the fireproof partition 1 is composed of multiple sheets spliced ​​together. In this embodiment, the joints of the sheets are joined together using mortise and tenon joints, which makes it easier to disassemble and replace the fireproof partition 1. When it is necessary to increase the capacity of the vertical shaft cable, the corresponding part of the sheet and fireproof module 2 can be removed separately, and replaced and reinstalled according to the size of the new cable. The entire capacity increase process does not require large-scale damage to the original sealing structure. The operation is simple and quick, which greatly reduces the construction difficulty and time cost of cable capacity increase. It ensures that the fireproof sealing effect after capacity increase is not affected, while effectively improving the convenience of cable system upgrade and transformation.

[0021] Fireproof partition 1 is made of fireproof board material, such as metal fireproof insulation board or organic fireproof partition 1. Fireproof vertical plate 21 is made of inorganic fire-resistant material. Sealing layer 3 is made of fireproof sealant material. Sealing layer 3 includes a first filling layer and a second filling layer. The first filling layer is filled between the two fireproof partitions 1 inside the cable shaft and outside the fireproof module 2. The first filling layer extends outward to the gap between the fireproof partition 1 and the cable shaft wall 5, and inward to the gap between the fireproof module 2 and the fireproof partition 1. The second filling layer is located in the inner circle of the fireproof module 2 and fills the gap between it and the cable bundle 4.

[0022] During installation, firstly, according to the needs of the cable bundle 4, the fireproof partition 1 and fireproof module 2 are cut into corresponding shapes and quantities. Next, multiple fireproof vertical plates 21 of the fireproof module 2 are overlapped around the cable bundle 4, forming a tight wrap around the internal cable bundle 4. Then, the two fireproof partitions 1 are fixedly installed in the grooves 51 on the upper and lower sides of the cable shaft, and the two ends of the fireproof module 2 are fixedly connected to the through holes of the corresponding side fireproof partition 1. Finally, fireproof sealant is used to fill the gaps between the fireproof module 2 and the cable bundle 4, between the fireproof module 2 and the fireproof partition 1, and between the fireproof partition 1 and the wall 5 of the cable shaft, filling all gaps and forming a sealed sealing layer 3. Thus, the fireproof sealing of the cable shaft is completed.

[0023] This utility model of a fireproof sealing structure for vertical shaft cable perforations combines a fireproof module 2, a fireproof partition 1, and a sealing layer 3. Its multi-layered structure works synergistically, resulting in stronger resistance to disturbance compared to traditional cement sealing. The fireproof module 2 and fireproof partition 1 have better anti-aging properties, and the sealing layer 3, formed with fireproof sealant, has more durable elasticity. The sealing structure offers better fire resistance and durability, providing a longer and more effective barrier against the spread of flames and smoke. Furthermore, its modular design simplifies installation, lowers the technical requirements for construction workers, and enhances adaptability to complex environments.

[0024] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A fireproof sealing structure for cable perforations in vertical shafts, characterized in that, It includes a fireproof partition (1) corresponding to the cable shaft. The fireproof partition (1) is installed in pairs at the openings on the upper and lower sides of the cable shaft. The fireproof partition (1) is provided with through holes corresponding to the cable bundle (4) in the cable shaft. The through holes of the two fireproof partitions (1) are paired up and down. A corresponding fireproof module (2) is provided between the cable bundle (4) and the two through holes of the fireproof partition (1). The fireproof module (2) tightly wraps the cable bundle (4) inside it. A sealing layer (3) is filled between the fireproof module (2) and the cable bundle (4), the fireproof module (2) and the fireproof partition (1), and the fireproof partition (1) and the wall (5) of the cable shaft.

2. The fireproof sealing structure for vertical shaft cable perforations according to claim 1, characterized in that, The through hole is a polygon corresponding to the internal cable bundle (4). The fireproof module (2) includes multiple fireproof vertical plates (21) arranged sequentially around the cable bundle (4). The multiple fireproof vertical plates (21) form a polygonal hollow column corresponding to the through hole. The edges of adjacent fireproof vertical plates (21) overlap each other. The upper and lower ends of the fireproof vertical plates (21) are respectively connected to the side wall of the fireproof partition (1) at the corresponding side through hole.

3. The fireproof sealing structure for vertical shaft cable perforations according to claim 1, characterized in that, The wall (5) at the openings at both ends of the cable shaft is provided with grooves (51) corresponding to the fireproof partitions (1). The two fireproof partitions (1) are respectively embedded in the grooves (51) at the corresponding ends of the cable shaft. The outer ring of the fireproof partition (1) is provided with multiple bolt holes (11), which are fixedly connected to the wall (5) of the cable shaft by external expansion bolts through the bolt holes (11).

4. The fireproof sealing structure for vertical shaft cable perforations according to claim 1, characterized in that, The fireproof partition (1) is made of multiple sheets spliced ​​together.

5. The fireproof sealing structure for vertical shaft cable perforations according to claim 1, characterized in that, The fireproof partition (1) is made of fireproof board, the fireproof vertical plate (21) is made of inorganic fire-resistant material, and the sealing layer (3) is made of fireproof sealant to fill the gaps between the fireproof module (2) and the cable bundle (4), the fireproof module (2) and the fireproof partition (1), and the fireproof partition (1) and the cable shaft wall (5).

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