Layered filling type cable trench and hole two-component blocking material sealing structure

Abstract

The utility model discloses a layered filling formula cable trench and hole double component material sealing structure, including base, the cable trench is opened in the base, the wire tube is horizontally across and is arranged in the base, the cable is inserted and is arranged in the wire tube, the cable trench is filled with the groove filling layer, the cable trench inner wall is coated with the flame -retardant coating, the flame -retardant coating with groove filling layer between is provided with the flexible layer, the wire tube is provided with secondary sealing assembly, the utility model discloses through the flame -retardant coating, silicon rubber film and groove filling layer have realized to the wire tube and the cable's fire -resistant, seal and moisture -proof effect, have guaranteed the reliability of cable when using and have prolonged the service life of cable, through the pipe filling layer and the cap have realized the filling and the closure to the wire tube, make the wire tube inside form the closed space, have guaranteed the waterproof moisture -proof effect of wire tube, simultaneously, the cap still can prevent the pipe filling layer overflow wire tube, have guaranteed the filling effect of pipe filling layer to the wire tube.

Description

Technical Field

[0001] This utility model belongs to the field of cable trench sealing technology, and relates to a layered filling cable trench and hole two-component plugging sealing structure. Background Technology

[0002] The transition from spring to summer is the most humid time for electrical cabinets. High internal temperatures and the temperature difference between the inside and outside of the equipment easily cause condensation to form on the cabinets, posing a safety hazard to electrical facilities. With continuous population growth and increasing urbanization demands, above-ground urban space can no longer meet the needs of socio-economic development, making direct burial of power cables and communication fiber optic cables inevitable. However, underground cables are difficult to manage, and their entry and exit points are frequently soaked by rainwater or gnawed by rodents, causing leakage, power outages, and other serious and irreparable consequences. The "moisture and condensation problems" in electrical cabinets such as those in urban substations, ring main units, and switchgear have consistently impacted the safety of power operations.

[0003] Chinese utility model patent CN210111531U discloses a fireproof sealing structure for cable trays penetrating floor slabs. The structure includes a tray and two sealing mechanisms. Cables are installed in the floor slab openings along the height of the tray. The two sealing mechanisms are symmetrically arranged on both sides of the tray. Each sealing mechanism includes a fireproof sealing material layer, a cement mortar layer, and a sealing plate, which are sequentially filled into the floor slab opening from the side closest to the tray towards the side furthest from the tray. Multiple sealing cylinders that cooperate with the cables are embedded on the side of the sealing plate furthest from the tray. A sealing cap is provided at the opening of each sealing cylinder, and a flame retardant layer is filled between the cylinder wall and the cable. This technical solution, by setting sealing plates at both ends of the floor slab openings and embedding multiple sealing cylinders filled with flame retardant layers within the sealing plates, can better retard the cables and prevent the spread of fire. Furthermore, the sealing plates and cables are slidably assembled, facilitating assembly. However, while the above technical solutions have optimized the fire protection of cable trenches, they have not focused on the moisture-proof effect of cable trenches. During use, external moisture and water may pass through the cable trenches and come into contact with cables and electrical equipment, thereby affecting the service life of cables and electrical equipment. Utility Model Content

[0004] In response to the problem that external moisture and water may penetrate cable trenches and come into contact with cables and electrical equipment, this utility model proposes a layered filling cable trench and hole two-component plugging sealing structure, which effectively solves the problem in the prior art that external moisture and water may penetrate cable trenches and come into contact with cables and electrical equipment.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a layered filling cable trench and hole two-component plugging sealing structure, including a base, a cable trench is formed in the base, a conduit is transversely arranged in the base, a cable is inserted in the conduit, a trench filling layer is filled in the cable trench, a flame-retardant coating is coated on the inner wall of the cable trench, a flexible layer is provided between the flame-retardant coating and the trench filling layer, and a secondary sealing component for secondary sealing of the cable is provided in the conduit.

[0006] Furthermore, the groove filling layer is a cable wall sealing material.

[0007] Furthermore, the flame-retardant coating is a BBS polymer quick-setting spray coating.

[0008] Furthermore, the flexible layer is a silicone rubber film.

[0009] Furthermore, the secondary sealing assembly includes a tube filling layer filled inside the tube and tube caps disposed at both ends of the tube, through which the cable extends to the outside.

[0010] Furthermore, a sealing gasket that contacts the side of the cable is provided inside the tube cover.

[0011] Furthermore, the material of the tube filling layer is a sealing and fireproofing plugging material.

[0012] Furthermore, the upper side of the base is provided with a top cover that can seal the cable trench. The upper side of the top cover is flush with the upper side of the base, and the top cover and the base are symmetrically connected by two fixing bolts.

[0013] Furthermore, a sealing layer is provided on the side of the top cover that contacts the base, and the material of the sealing layer is a rubber pad.

[0014] Compared with the prior art, the present invention has the following beneficial effects: This invention achieves flame-retardant coating, silicone rubber film and groove filling layer for fire prevention, sealing and moisture prevention of conduit and cable, ensuring the reliability of cable during use and extending the service life of cable. This utility model achieves the filling and sealing of the conduit through a tube filling layer and a cap, forming a closed space inside the conduit and ensuring the waterproof and moisture-proof effect of the conduit. At the same time, the cap can also prevent the tube filling layer from overflowing the conduit, further ensuring the filling effect of the tube filling layer on the conduit. This utility model, through the top cover, fixing bolts, and sealing layer, enables the top cover to be in tight sealing contact with the base, thereby forming a closed space in the cable trench. This prevents external water flow, debris, and small animals from entering the cable trench and damaging the conduit and cable, thus improving the protection effect on the conduit and cable. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This utility model Figure 1 A magnified view of part A; Figure 3 This utility model Figure 1 A magnified view of part B.

[0016] In the diagram: 1. Base; 2. Conduit; 3. Cable; 4. Channel filling layer; 5. Flexible layer; 6. Flame-retardant coating; 7. Pipe filling layer; 8. Pipe cap; 9. Sealing gasket; 10. Top cover; 11. Fixing bolt; 12. Sealing layer. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0018] like Figure 1 As shown, a layered filling cable trench and hole two-component plugging sealing structure includes a base 1, a cable 3 trench is formed in the base 1, a conduit 2 is transversely arranged in the base 1, a cable 3 is inserted in the conduit 2, a trench filling layer 4 is filled in the cable 3 trench, a flame retardant coating 6 is coated on the inner wall of the cable 3 trench, and a flexible layer 5 is provided between the flame retardant coating 6 and the trench filling layer 4.

[0019] In this embodiment, the groove filling layer 4 is a cable wall sealing material. This cable wall sealing material is a sealing cable wall plug developed and sold by Henan Tongren Zhichuang Materials Technology Co., Ltd. It is existing technology and is currently available on the market. The sales website is (https: / / b2b.baidu.com / land?url=https%3A%2F%2Fb2bwork.baidu.com%2Flan). d%3Flid%3D1813908069025029662&query=%E6%B2%B3%E5%8D%97%E5%90%8C%E4%BA%BA%E6%99 %BA%E5%88%9B%E6%9D%90%E6%96%99%E7%A7%91%E6%8A%80%E6%9C%89%E9%99%90%E5%85%AC%E5% 8F%B8&lattr=ot&xzhid=57304091&pi=b2b.shop.prodclassify.10..5779095086223362&ca tagory=%E5%BB%BA%E6%9D%90%E5%AE%B6%E8%A3%85%3B%E5%8A%9F%E8%83%BD%E6%9D%90%E6%96 %99%3B%E9%98%B2%E6%B0%B4%2F%E9%98%B2%E6%BD%AE%E6%9D%90%E6%96%99&fid=67567616%2C 1757298550995&iid=8bece35b8e3c80f75ea66dd4a0507e3b&jid=1101020073&prod_type=0).

[0020] In this embodiment, the flame-retardant coating 6 is a BBS polymer quick-setting spray coating.

[0021] In this embodiment, the flexible layer 5 is a silicone rubber film.

[0022] When using the above embodiments: After the workers installed conduit 2 and cable 3 inside base 1, they first applied a flame-retardant coating 6 to the inner side of the cable 3 trench using BBS polymer quick-setting spray coating. BBS polymer quick-setting foam spray coating is a two-component anti-condensation material with high polymer foaming. It is applied using professional spraying tools and is used to seal the cable 3 through floor slabs, cable trays, walls, and holes. After curing, it forms a fire barrier of a certain thickness and strength, achieving the purpose of fire resistance, heat insulation, and smoke isolation. Its flame-retardant performance meets the UL-94FV-0 flame-retardant standard. BBS polymer quick-setting foam spray coating can be applied without power interruption. It has excellent water resistance, fire resistance, oil resistance, and corrosion resistance. It is non-toxic, odorless, and easy to use. It can effectively prevent the spread of fire along cable 3 and ensure the safe operation of equipment. After the flame-retardant coating 6 is applied, workers lay a layer of silicone rubber film on the inner side of the cable trench 3. Following this, they fill the cable trench 3 with cable wall sealant. This cable wall sealant is a functional polymer two-component material composed of highly active chemical substances. Once filled into the cable trench 3, it quickly fills all gaps and holes, foams, expands, and solidifies to form a sealed solid, achieving an "airtight seal." The cable wall sealant has excellent water resistance, fire resistance, and corrosion resistance, effectively preventing external... The fire spreads along the cable 3 or through the hole, preventing the inflow of moisture, toxic gas, water, and small animals. It can effectively protect the conduit 2 and cable 3, extending their service life. At the same time, when the cable 3 wall sealant expands, it can push the silicone rubber film to make close contact with the inner side of the cable 3 groove, further improving the sealing effect in the cable 3 groove. Furthermore, under the obstruction of the silicone rubber film, the cable 3 wall sealant will not stick to the inner wall of the cable 3 groove, improving the convenience for workers to clean the cable 3 wall sealant in the cable 3 groove later. The flame-retardant coating 6, silicone rubber film, and groove filling layer 4 achieve flame-retardant, sealing, and moisture-proof effects on the conduit 2 and cable 3, ensuring the reliability of cable 3 during use and extending the service life of cable 3.

[0023] Example 2 differs from Example 1 in that: In this embodiment, as Figure 3 As shown, the conduit 2 is provided with a secondary sealing assembly for secondary sealing of the cable 3. The secondary sealing assembly includes a tube filling layer 7 filled in the conduit 2 and tube caps 8 provided at both ends of the conduit 2. The cable 3 extends to the outside through the tube caps 8.

[0024] In this embodiment, a sealing gasket 9 is provided inside the tube cover 8 to contact the side of the cable 3.

[0025] In this embodiment, the material of the pipe filling layer 7 is a sealing and fireproof sealing compound. This product uses a sealing cable wall sealant developed and sold by a certain technology company, whose sales website is (https: / / b2b.baidu.com / land?url=https%3A%2F%2Fb2bwork.baidu.com%2Fland%3Flid%3D1823294640964568404&query=%E5%90%8C%E4%BA%BA%E6%99%BA%E5%88%9B&lattr=ot&xzhid=57304091&pi=b2b.s.main.2..365253152691). 4777&category=%E5%BB%BA%E6%9D%90%E5%AE%B6%E8%A3%85%3B%E5%8A%9F%E 8%83%BD%E6%9D%90%E6%96%99%3B%E9%98%B2%E6%B0%B4%2F%E9%98%B2%E6%BD %AE%E6%9D%90%E6%96%99&fid=67567616%2C1757298550995&iid=7dc0e7e6b61bb36aa7870b98d7bc7e02&miniId=8469&jid=3339352183&prod_type=0).

[0026] In the above embodiment, after the cable 3 is passed through the conduit 2, the worker fills the conduit 2 with a filling layer 7. After the filling layer 7 is filled into the conduit 2, it expands, making the conduit 2 solid instead of hollow, thus improving the protection of the cable 3. At the same time, the filling layer 7 can also prevent external water from entering the conduit 2, further improving the waterproof effect of the conduit 2. After filling the filling layer 7, the worker installs the caps at both ends of the conduit 2 through threaded connections, forming a closed space inside the conduit 2, ensuring the waterproof and moisture-proof effect of the conduit 2. At the same time, the caps can also prevent the filling layer 7 from overflowing from the conduit 2, further ensuring the filling effect of the filling layer 7 on the conduit 2.

[0027] Example 3 differs from Example 1 in that: In this embodiment, as Figure 2 As shown, the upper side of the base 1 is provided with a top cover 10 that can seal the groove of the cable 3. The upper side of the top cover 10 is flush with the upper side of the base 1. The top cover 10 and the base 1 are symmetrically connected by two fixing bolts 11.

[0028] In this embodiment, a sealing layer 12 is provided on the side of the top cover 10 that contacts the base 1, and the material of the sealing layer 12 is a rubber pad.

[0029] In use, the top cover 10, fixing bolts 11, and sealing layer 12 enable the top cover 10 to be in tight sealing contact with the base 1, thereby forming a sealed space in the cable 3 trench. This prevents external water flow, debris, and small animals from entering the cable 3 trench and damaging the conduit 2 and cable 3, thus improving the protection effect on the conduit 2 and cable 3. At the same time, the top cover 10 can prevent the trench filling layer 4 from overflowing from the cable 3 trench, ensuring the expansion and filling effect of the trench filling layer 4. Since the upper side of the top cover 10 is flush with the upper side of the base 1, the flatness of the upper side of the base 1 is ensured, improving the convenience and stability for workers when installing other structures in subsequent construction.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A layered filling type cable trench and hole two-component plugging sealing structure, including a base (1), wherein a cable (3) trench is formed in the base (1), characterized in that: A conduit (2) is horizontally inserted inside the base (1), and a cable (3) is inserted inside the conduit (2). The groove of the cable (3) is filled with a groove filling layer (4). The inner wall of the groove of the cable (3) is coated with a flame-retardant coating (6). A flexible layer (5) is provided between the flame-retardant coating (6) and the groove filling layer (4). A secondary sealing component for secondary sealing of the cable (3) is provided inside the conduit (2).

2. The layered filling type cable trench and hole two-component plugging sealing structure according to claim 1, characterized in that: The groove filling layer (4) is a cable wall sealing material.

3. The layered filling type cable trench and hole two-component plugging sealing structure according to claim 1, characterized in that: The flame-retardant coating (6) is a BBS polymer quick-setting spray coating.

4. The layered filling type cable trench and hole two-component plugging sealing structure according to claim 1, characterized in that: The flexible layer (5) is a silicone rubber film.

5. The layered filling type cable trench and hole two-component plugging sealing structure according to claim 1, characterized in that: The secondary sealing assembly includes a tube filling layer (7) filling the inside of the tube (2) and tube caps (8) disposed at both ends of the tube (2), through which the cable (3) extends to the outside.

6. The layered filling type cable trench and hole two-component plugging sealing structure according to claim 5, characterized in that: The pipe cover (8) is provided with a sealing gasket (9) that contacts the side of the cable (3).

7. The layered filling type cable trench and hole two-component plugging sealing structure according to claim 5, characterized in that: The material of the tube filling layer (7) is a sealing and fireproof sealing material.

8. The layered filling type cable trench and hole two-component plugging sealing structure according to claim 1, characterized in that: The upper side of the base (1) is provided with a top cover (10) that can seal the trench of the cable (3). The upper side of the top cover (10) is flush with the upper side of the base (1). The top cover (10) and the base (1) are symmetrically connected by two fixing bolts (11).

9. The layered filling type cable trench and hole two-component plugging sealing structure according to claim 8, characterized in that: A sealing layer (12) is provided on the side of the top cover (10) that contacts the base (1), and the material of the sealing layer (12) is a rubber pad.

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