CN219896858U - Waterproof fire-retardant system of cable pit - Google Patents
Waterproof fire-retardant system of cable pit Download PDFInfo
- Publication number
- CN219896858U CN219896858U CN202321179940.2U CN202321179940U CN219896858U CN 219896858 U CN219896858 U CN 219896858U CN 202321179940 U CN202321179940 U CN 202321179940U CN 219896858 U CN219896858 U CN 219896858U
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- fire
- waterproof
- backup pad
- fireproof
- fire prevention
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 230000000149 penetrating effect Effects 0.000 claims abstract description 10
- 230000002265 prevention Effects 0.000 claims description 38
- 229910000278 bentonite Inorganic materials 0.000 claims description 13
- 239000000440 bentonite Substances 0.000 claims description 13
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 13
- 238000009826 distribution Methods 0.000 claims description 4
- 230000009970 fire resistant effect Effects 0.000 claims 5
- 230000005494 condensation Effects 0.000 claims 1
- 238000009833 condensation Methods 0.000 claims 1
- 230000007480 spreading Effects 0.000 abstract description 4
- 238000003892 spreading Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000000712 assembly Effects 0.000 abstract description 2
- 238000000429 assembly Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- 238000005187 foaming Methods 0.000 description 9
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 7
- 230000000903 blocking effect Effects 0.000 description 5
- 239000006260 foam Substances 0.000 description 5
- 230000032683 aging Effects 0.000 description 3
- 239000004568 cement Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Installation Of Indoor Wiring (AREA)
Abstract
The utility model relates to a waterproof fire-retardant system of a cable duct, which comprises fireproof supporting plates which are distributed at intervals along the inner side and the outer side, wherein wall penetrating assemblies are arranged on the fireproof supporting plates, the fireproof supporting plates comprise a first fireproof supporting plate and a second fireproof supporting plate, mounting brackets are arranged at two ends of the first fireproof supporting plate and the second fireproof supporting plate, the first fireproof supporting plate and the second fireproof supporting plate are connected with the mounting brackets in a clamping mode, a cavity is formed between the first fireproof supporting plate and the second fireproof supporting plate, and an expansion plugging material is poured into the cavity. The waterproof fire-retardant system of the cable duct has the advantages that the operation and maintenance are convenient, the effective waterproof sealing and fireproof performance can be provided, the waterproof fire-retardant system has excellent waterproof and anti-leakage performance, the influence of outside water on a building and electric equipment in the building due to the fact that the outside water passes through a waterproof wall can be effectively avoided, the fire is effectively prevented from spreading, and the safety coefficient is improved.
Description
Technical Field
The utility model relates to the technical field of tunnels and underground engineering, in particular to a waterproof fire-retardant system of a cable duct.
Background
Currently, for high-low voltage power systems, fire prevention and water prevention are the most important measures for ensuring the safety of power equipment, and along with the leap development of national economy, the electric power industry and the electric power safety protection thereof are also more important. The wires and cables in modern buildings are often laid in clusters in cable channels, and various penetrability openings are more, so that the following problems exist in the actual operation process: the water leakage flows into the cable trench along the side wall to threaten the power supply line in the cable trench, so that the accumulated water in the cable trench is frozen in a low-temperature environment to generate ice expansion force, and the cable trench is irreparably damaged; the humidity in the cable trench is high, the temperature is high, and the moisture in the cable trench cannot be discharged in time, so that the normal operation of a cable pipeline in the cable trench is influenced; the cable pipe is short-circuited due to moisture or the temperature of the cable joint or the cable itself rises to cause a fire phenomenon;
in the fireproof link of the power system, the cable pit is an important protection object, and when a fire disaster occurs, fire can spread along with the cable pit, so that a firewall is usually arranged in the cable pit to prevent the fire from spreading. However, the existing fire-proof wall is mostly made of bricks and coarse sand, and is only plugged by adopting waterproof materials such as cement, and the fire-proof materials such as cement are easy to burn and crack when fire disaster occurs and cannot prevent flame from spreading; in addition, the waterproof materials such as cement and the like have high strength after being solidified, and the cable is not easy to detach, overhaul and replace.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems in the related art to some extent. Therefore, the utility model aims to provide a waterproof fire-retardant system for a cable duct, which aims to solve the problems of poor waterproof fire-retardant performance, inconvenient operation and maintenance and the like of the existing cable duct.
The utility model aims at realizing the following technical scheme:
the utility model provides a waterproof fire-retardant system of cable pit, its includes along the inside and outside transverse interval distribution's fire prevention backup pad, be provided with the wall subassembly of wearing in the fire prevention backup pad, the fire prevention backup pad includes first fire prevention backup pad and second fire prevention backup pad, just the both ends of first fire prevention backup pad and second fire prevention backup pad all are provided with the installing support, first fire prevention backup pad and second fire prevention backup pad and installing support block are connected, form the cavity between first fire prevention backup pad and the second fire prevention backup pad, the pouring has inflation shutoff material in the cavity.
In a specific embodiment, the section of the mounting bracket is U-shaped, flanges are arranged on the vertical sides of the U-shaped mounting bracket in an extending mode, a plurality of screw holes are formed in the flanges, bolts are respectively connected with the inner walls of the screw holes in a threaded mode, and the mounting bracket is fixedly connected with a wall body through the bolts; the inner side of the mounting bracket is provided with anti-slip stripes, and the fireproof support plate is clamped in the U-shaped groove of the mounting bracket.
In a specific embodiment, the section of the mounting bracket is L-shaped, a flange is arranged on the vertical edge of the L-shaped mounting bracket in an extending mode, a plurality of screw holes are formed in the flange, bolts are respectively connected with the inner walls of the screw holes in a threaded mode, and the mounting bracket is fixedly connected with a wall body through the bolts; the fire-proof support is characterized in that a limit groove is formed in the transverse edge of the L-shaped mounting support, an array densely distributed anti-slip ridge is arranged on one side, close to the fire-proof support plate body, of the mounting support, and the fire-proof support plate is clamped in the limit groove of the mounting support.
In a specific embodiment, the wall penetrating component comprises a wall penetrating sleeve and a water retaining ring sleeved on the wall penetrating sleeve, and the water retaining ring is arranged on the outer side face of the fireproof supporting plate.
Further, the outer surface of the wall bushing is also provided with a waterproof coiled material and a bentonite waterproof blanket, the water retaining ring is sleeved on the bentonite waterproof blanket, and the bentonite waterproof blanket is in interference fit with the water retaining ring.
In a specific embodiment, the diameter of the wall bushing is 3-10cm, the thickness of the waterproof roll side is 2-5mm, and the thickness of the bentonite waterproof blanket is 3-10mm.
In a specific embodiment, the expansion plugging material is a condensation-proof, water-proof and fire-proof expansion plugging material. Compared with the prior art, the utility model has at least the following advantages:
the utility model provides a waterproof fire-retardant system of a cable duct, which comprises fireproof supporting plates which are transversely distributed at intervals along the inner side and the outer side, wherein wall penetrating assemblies are arranged on the fireproof supporting plates, the fireproof supporting plates comprise a first fireproof supporting plate and a second fireproof supporting plate, mounting brackets are arranged at two ends of the first fireproof supporting plate and the second fireproof supporting plate, the first fireproof supporting plate and the second fireproof supporting plate are connected with the mounting brackets in a clamping mode, a cavity is formed between the first fireproof supporting plate and the second fireproof supporting plate, and an expansion plugging material is poured into the cavity. The fireproof support plates are distributed at intervals along the inner and outer directions, and the mounting brackets are arranged at the two ends of the fireproof support plates to replace the wall body in the prior art, so that the fireproof performance is improved, and the subsequent operation and maintenance are convenient; the cavity that the rethread formed between first fire prevention backup pad and second fire prevention backup pad is inside to be poured with inflation shutoff material, can provide effectual waterproof sealing and fire behavior, and then makes this waterproof fire-retardant system have excellent waterproof antiseep performance, can effectively avoid external water to cross the waterproof wall and cause the influence to the building and inside electrical equipment to and effectively prevent that the intensity of a fire from spreading, improve factor of safety.
Drawings
In order to more clearly illustrate the embodiments of the present utility model, the drawings that are used in the description of the embodiments or the prior art will be briefly described below. Throughout the drawings, the elements or portions are not necessarily drawn to actual scale.
FIG. 1 is a schematic cross-sectional view of a waterproof firestop system according to the present utility model;
FIG. 2 is a schematic cross-sectional view of a waterproof firestop system according to another embodiment of the present utility model;
FIG. 3 is a schematic cross-sectional view of a wall-penetrating member of the waterproof fire-retardant system according to the present utility model;
fig. 4 is a schematic structural view of a mounting bracket (U-shape) in the waterproof fire-retardant system provided by the utility model.
Detailed Description
Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model.
It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. In the description of the present utility model, the meaning of "plurality" is two or more unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Example 1
As shown in fig. 1 and 2, a waterproof fire-retardant system of cable duct, it includes along the inside and outside horizontal interval distribution's fire prevention backup pad, be provided with the wall subassembly of wearing in the fire prevention backup pad, the fire prevention backup pad includes first fire prevention backup pad 11 and second fire prevention backup pad 12, and the both ends of first fire prevention backup pad 11 and second fire prevention backup pad 12 all are provided with installing support 3, first fire prevention backup pad 11 and second fire prevention backup pad 12 and installing support 3 block are connected, form the cavity between first fire prevention backup pad 11 and the second fire prevention backup pad 12, the pouring has inflation shutoff material 4 in this cavity. When the fireproof support plate is specifically used, a plurality of first fireproof support plates and second fireproof support plates can be arranged according to actual conditions, the first fireproof support plates are generally used as outer fireproof support plates, the second fireproof support plates are generally used as inner fireproof support plates, the distance between the fireproof support plates is generally set to be 2-10m, the corresponding number of the fireproof support plates are configured according to the arranged fireproof support plates, the fireproof support plates are directly erected by the mounting support frames, and the fireproof support plate is convenient, firm and convenient to use and quick in construction.
In a preferred embodiment of the present utility model, the expansion blocking material is a condensation-proof, water-proof, fire-proof expansion blocking material. The material is formed by mixing A, B two agents in a proper proportion to generate chemical reaction to form a foaming body, and the foaming body is in a liquid state before the foaming body is formed, has good fluidity, and can fully fill the openings of the complex penetrating pipe fittings to provide an intact fireproof effect. When the foam plugging material is subjected to high temperature effects such as fire, heat and the like, an expansion carbon layer can be generated to prevent the fire from being delayed and the heat from being transferred, so that good protection is provided for a non-fire-receiving surface, and the foam plugging material has fireproof aging for three hours.
The expansion plugging material selected in the embodiment is an expansion plugging material of Hebei Chengzhu Zhi research new material science and technology limited company, which can be rapidly expanded and expanded after being uniformly mixed, and is filled in the gap between the fireproof supporting plate and the original wall of the cable trench, so that the plugging of water is realized; the foam formed after the foam is completely solidified forms a fire-retarding barrier with certain thickness and strength, and the flame retardant property reaches the UL94V-0 level flame retardant standard; the water-blocking and heat-insulating cable duct can effectively block water and insulate heat, and the humidity and/or the temperature of water vapor in the cable duct can be effectively prevented from affecting the temperature change in the power distribution cabinet.
In another preferred technical scheme of the embodiment, the expansion plugging material can also be polyurethane foaming fireproof plugging material, the polyurethane foaming plugging material is prepared by adding a flame retardant and modifying a structure, the requirements of B2 and B1 of the national standard can be met, and the expansion plugging material is compounded with an inorganic material, so that the A-level fireproof requirement can be met. Can be used in occasions with low fireproof requirements, but has poor strength and ageing resistance.
In another preferred technical scheme of the embodiment, the expansion plugging material can be an organosilicon foaming waterproof flame-retardant material, and the material has the characteristics of simple production process, uniform foaming, high foam strength, good flame retardant property, good storage property and the like, and is suitable for waterproof fire-retardant systems of most cable trenches.
In another preferable technical scheme of the embodiment, the expansion plugging material can be an organosilicon fluorine foaming waterproof flame-retardant material, and the material not only has the advantages of the organosilicon foaming waterproof flame-retardant material, but also has excellent ageing resistance, and is particularly suitable for cable trenches with strong ultraviolet rays such as a plateau.
Example 2
As shown in fig. 1 and fig. 4, on the basis of embodiment 1, the section of the mounting bracket 3 is in a U shape, the straight vertical sides of the U shape are provided with flanges in an extending way, the flanges are provided with a plurality of screw holes, the inner walls of the screw holes are respectively connected with bolts in a threaded manner, and the mounting bracket is fixedly connected with a wall body through the bolts; the medial surface of installing support all is provided with anti-skidding stripe, and fire prevention backup pad block is in the "U" groove of installing support. When the cable duct is specifically used, the fireproof support plate body is placed in the U-shaped groove of the mounting bracket, the mounting bracket is fixedly connected with the wall body through bolts, and the number of the screw holes can be selected in a matching mode according to the size of the cable duct or the specification and the size of the fireproof support plate body. The fireproof supporting plate adopting the structure is convenient and quick to construct, and has excellent strength, water resistance and flame retardance. The fireproof supporting plate is formed by sintering inorganic metal oxide and a sintering agent at high temperature, has the characteristics of water resistance and fire resistance, does not generate the phenomena of pulverization, collapse and the like of materials in a long-term bubble environment, can maintain the integrity of a supporting structure for a long time, and provides technical support for improving the convenience and the practicability of the waterproof fire-retardant system.
Example 3
Referring to fig. 2 again, the cross section of the mounting bracket 3 is in an L shape, a flange is arranged on the vertical side of the L-shaped mounting bracket in an extending manner, a plurality of screw holes are formed in the flange, the inner walls of the screw holes are respectively connected with bolts in a threaded manner, and the mounting bracket is fixedly connected with a wall body through the bolts; the transverse edge of the L-shaped mounting bracket is provided with a limit groove, one side of the mounting bracket, which is close to the fireproof support plate body, is provided with anti-skid ridges densely distributed in an array, and the fireproof support plate is clamped in the limit groove of the mounting bracket. When the installation support is specifically used, the fireproof support plate is placed in the limiting groove of the L-shaped installation support, the vertical edge of the L-shaped groove is provided with a screw hole, the inner wall of the screw hole is respectively connected with a bolt in a threaded manner, the installation support is fixedly connected with a wall body through the bolts, and the number of the screw holes can be selected in a matching manner according to the size of a cable pit or the specification and the size of the fireproof support plate body. The fireproof support plate adopting the structure is convenient and quick to construct, can maintain the integrity of the support structure for a long time, and provides technical support for improving the convenience and practicality of the waterproof fire-retarding system.
Example 4
As shown in fig. 3, on the basis of embodiment 1, embodiment 2 and/or embodiment 3, the wall penetrating assembly includes a wall penetrating sleeve 21 and a water blocking ring 22 sleeved on the wall penetrating sleeve, wherein the water blocking ring 22 is disposed on an outer side surface of the fireproof supporting plate. Specifically, the arrangement of the water blocking ring can effectively reduce external water vapor from entering the construction, and improve the safety performance of electrical equipment inside the construction.
In a preferred technical scheme of this specific embodiment, the outer surface of the wall bushing 21 is further provided with a waterproof roll 23 and a bentonite waterproof blanket 24, wherein the diameter of the wall bushing is 3-10cm, the thickness of the waterproof roll is 2-5mm, the thickness of the bentonite waterproof blanket is 3-10mm, further, the diameter of the wall bushing is 6cm, the thickness of the waterproof roll is 3mm, and the thickness of the bentonite waterproof blanket is 6mm. The water retaining ring 22 is sleeved on the bentonite waterproof blanket 24, and the bentonite waterproof blanket 24 is in interference fit with the water retaining ring 22; the interference fit can effectively improve the waterproof tightness of the waterproof fire-retardant system.
The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description.
Claims (7)
1. The utility model provides a waterproof fire-retardant system of cable pit, its characterized in that, it includes along the inside and outside transverse interval distribution's fire prevention backup pad, be provided with the wall subassembly of wearing in the fire prevention backup pad, the fire prevention backup pad includes first fire prevention backup pad and second fire prevention backup pad, just the both ends of first fire prevention backup pad and second fire prevention backup pad all are provided with the installing support, first fire prevention backup pad and second fire prevention backup pad and installing support block are connected, form the cavity between first fire prevention backup pad and the second fire prevention backup pad, the pouring has inflation shutoff material in the cavity.
2. The waterproof fire-retardant system of the cable duct according to claim 1, wherein the cross section of the mounting bracket is U-shaped, flanges are arranged on the vertical sides of the U-shaped mounting bracket in an extending manner, a plurality of screw holes are formed in the flanges, bolts are respectively connected to the inner walls of the screw holes in a threaded manner, and the mounting bracket is fixedly connected with a wall body through the bolts; the inner side of the mounting bracket is provided with anti-slip stripes, and the fireproof support plate is clamped in the U-shaped groove of the mounting bracket.
3. The waterproof fire-retardant system of the cable duct according to claim 1, wherein the cross section of the mounting bracket is L-shaped, the vertical edge of the L-shaped mounting bracket is provided with a turned edge in an extending manner, the turned edge is provided with a plurality of screw holes, the inner walls of the screw holes are respectively connected with bolts in a threaded manner, and the mounting bracket is fixedly connected with a wall body through the bolts; the fire-proof support is characterized in that a limit groove is formed in the transverse edge of the L-shaped mounting support, an array densely distributed anti-slip ridge is arranged on one side, close to the fire-proof support plate body, of the mounting support, and the fire-proof support plate is clamped in the limit groove of the mounting support.
4. A water and fire resistant system for a raceway according to claim 2 or claim 3 wherein said wall penetrating assembly comprises a wall bushing and a water deflector disposed over said wall bushing, said water deflector being disposed on an outer side of a fire resistant support plate.
5. The fire-retardant system of claim 4, wherein the outer surface of the wall bushing is further provided with a waterproof roll and a bentonite waterproof blanket, the water-blocking blanket is sleeved on the bentonite waterproof blanket, and the bentonite waterproof blanket is in interference fit with the water-blocking blanket.
6. The fire-resistant and waterproof system for a cable duct according to claim 5, wherein the diameter of the wall bushing is 3-10cm, the thickness of the waterproof roll side is 2-5mm, and the thickness of the bentonite waterproof blanket is 3-10mm.
7. The fire-resistant and water-resistant system for a cable duct according to claim 1 wherein the intumescent plugging material is a condensation-resistant, water-resistant and fire-resistant intumescent plugging material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321179940.2U CN219896858U (en) | 2023-05-16 | 2023-05-16 | Waterproof fire-retardant system of cable pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321179940.2U CN219896858U (en) | 2023-05-16 | 2023-05-16 | Waterproof fire-retardant system of cable pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219896858U true CN219896858U (en) | 2023-10-27 |
Family
ID=88464964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321179940.2U Active CN219896858U (en) | 2023-05-16 | 2023-05-16 | Waterproof fire-retardant system of cable pit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219896858U (en) |
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2023
- 2023-05-16 CN CN202321179940.2U patent/CN219896858U/en active Active
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