CN216839944U - Anti-waterlogging backward-flowing structure of medium and small-section cable trench - Google Patents
Anti-waterlogging backward-flowing structure of medium and small-section cable trench Download PDFInfo
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- CN216839944U CN216839944U CN202122975345.7U CN202122975345U CN216839944U CN 216839944 U CN216839944 U CN 216839944U CN 202122975345 U CN202122975345 U CN 202122975345U CN 216839944 U CN216839944 U CN 216839944U
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Abstract
The utility model discloses a waterlogging-preventing water backflow-preventing structure for a medium and small-section cable trench, which is suitable for the cable trench with the cross section less than or equal to 400mm multiplied by 400mm and comprises the following components: the connecting section is arranged in a through hole of an outer wall of a building and comprises a wall penetrating plate integrally cast with a cable trench wall penetrating lintel, a plurality of wall penetrating pipes for penetrating cables are arranged on the wall penetrating plate, and water sealing pieces are arranged at two ends of each wall penetrating pipe; the cable trench prefabricating section comprises an indoor section and an outdoor section which are arranged on two sides of a wall penetrating plate respectively, wherein the trench bottom elevation of the indoor section is higher than that of the outdoor section, a downward inclined slope is arranged at the trench bottom of the indoor section close to the wall penetrating plate, and the lower end elevation of the downward inclined slope is equal to that of the outdoor section. The utility model has simple structure, easy construction and good water-blocking effect, can effectively prevent flood rainwater outside the building from entering the building through the cable trench, enhances the capability of urban power supply facilities to cope with serious flood disasters, ensures the reliable supply of electric power of important users and meets the power consumption requirements of normal life of residents.
Description
Technical Field
The utility model relates to the technical field of waterproof of cable ditches, in particular to a waterlogging-preventing and water-pouring-preventing structure for a cable ditch with a medium and small cross section.
Background
Under the condition of exceeding the standard and rainfall, when the power grid transformer stations around the city are flooded by water and do not trip, so as to cause large-area power failure, most of the transformation and distribution stations in residential districts, schools, ground and underground public transportation, commercial squares, key hospitals, government offices and the like in the city can not be avoided, and inspection shows that part of water enters the flooded distribution device chamber through the cable trench.
Disclosure of Invention
In order to solve the problems, the utility model provides a waterlogging-prevention backward-flowing structure for medium and small-section cable ducts, which can specifically adopt the following technical scheme:
the waterlogging-prevention backward-flowing structure of the cable trench with the middle and small cross sections is suitable for the cable trench with the cross section of less than or equal to 400mm multiplied by 400mm, and comprises
The connecting section is arranged in a through hole of an outer wall of a building and comprises a wall penetrating plate integrally cast with a cable trench wall penetrating lintel, a plurality of wall penetrating pipes for penetrating cables are arranged on the wall penetrating plate, and water sealing parts are arranged at two ends of each wall penetrating pipe;
prefabricated section of cable pit, including setting up indoor section and the outdoor section in wearing the wallboard both sides respectively, the ditch end elevation of indoor section is higher than the ditch end elevation of outdoor section, and is close to wearing wallboard department at the bottom of the ditch of indoor section and is provided with the downward sloping slope, the low side elevation of downward sloping slope equals with the ditch end elevation of outdoor section.
The thickness of the cable trench wall-penetrating lintel is equal to that of the building outer wall, the thickness of the wall-penetrating plate is half of that of the building outer wall, and the wall-penetrating plate is symmetrically arranged along the center line of the cable trench wall-penetrating lintel.
The wall penetrating plate is characterized in that a double-layer reinforcing mesh is arranged in the wall penetrating plate, the wall penetrating pipes are arranged in the center of the wall penetrating plate, and each wall penetrating pipe is arranged in one mesh of the double-layer reinforcing mesh.
The wall penetrating pipe is a galvanized steel pipe, the end part of the wall penetrating pipe is positioned outside the wall penetrating plate, and the outer diameter of the cable is smaller than the inner diameter of the wall penetrating pipe.
The water seal part comprises a first water seal part and a second water seal part which are hermetically connected on the cable, the first water seal part is hermetically connected with the inner wall of the wall penetrating pipe, and the second water seal part is hermetically connected with the outer wall of the wall penetrating pipe.
The ditch bottom elevation of indoor section is higher than the ditch bottom elevation 150mm of outdoor section, the slope of slope is 17 down, the ditch top elevation of outdoor section is higher than ground elevation 100 mm.
Settlement joints are arranged between the indoor section and the outdoor section and between the outdoor section and the outer wall of the building, and asphalt hemp thread fillers are arranged in the settlement joints.
And embedded parts for welding the cable support frame are arranged on the side walls of the indoor section and the outdoor section.
The top of indoor section and outdoor section includes the top surface of pouring with the lateral wall integration and the brace table with apron looks adaptation, the top surface is close to and wears wallboard one end setting, be provided with galvanized angle steel on the external corner line of brace table.
And waterproof mortar joint mixtures are arranged between the cover plates and the supporting platform.
The waterlogging backflow preventing structure for the medium and small-section cable trench, provided by the utility model, is simple in structure, easy to construct and good in water blocking effect, can effectively prevent waterlogging rainwater outside a building from entering the interior of the building through the cable trench, enhances the capability of urban power supply facilities in coping with serious flood disasters, ensures the reliable supply of electric power of important users, and meets the power consumption requirements of normal life of residents.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Fig. 2 is a cross-sectional view a-a of the fenestrated panel of fig. 1.
Fig. 3 is a schematic view of the connection of the wall tube to the cable of fig. 1.
Fig. 4 is a sectional view taken along line B-B in fig. 1.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the drawings, and the embodiments are implemented on the premise of the technical solution of the present invention, and the detailed embodiments are given, but the scope of the present invention is not limited to the following embodiments.
As shown in figures 1-4, the waterlogging-prevention and water-backflow-prevention structure for the medium and small-section cable trench is suitable for the cable trench with the cross section of less than or equal to 400mm multiplied by 400mm (namely the cable trench with the bottom width and the trench depth of not more than 400 mm), and consists of a connecting section and a cable trench prefabricating section.
Specifically, the linking section is located the perforation of building outer wall 1, and including the wall penetrating plate 3 of crossing wall lintel 2 monolithic concreting with the cable pit, be provided with a plurality of wall penetrating pipes 5 that are used for wearing to establish cable 4 on the wall penetrating plate 3, the both ends of wall penetrating pipe 5 are installed water seal (including first water seal 601 and second water seal 602). The thickness of the cable trench wall-penetrating lintel 2 is equal to that of the building outer wall 1, the thickness of the wall-penetrating plate 3 is half of that of the building outer wall 1, and the wall-penetrating plates 3 are symmetrically arranged along the central line of the cable trench wall-penetrating lintel 2. The wall penetrating plate 3 is poured by C20 concrete, and a double-layer reinforcing mesh 301 is arranged in the wall penetrating plate; the wall penetrating pipes 5 are arranged in the center of the wall penetrating plate 3 according to four rows and four columns, and each wall penetrating pipe 5 corresponds to one mesh of the double-layer reinforcing mesh 301; the wall penetrating pipe 5 is mainly made of galvanized steel pipes, the port of the wall penetrating pipe is polished smoothly without burrs, and the wall penetrating pipe is subjected to rust prevention treatment, the length of the wall penetrating pipe is equal to the thickness of the outer wall 1 of a building, so that the end part of the wall penetrating pipe 5 is positioned outside the wall penetrating plate 3, and the outer diameter of a cable 4 in the wall penetrating pipe is usually smaller than the inner diameter of the wall penetrating pipe 5. In order to achieve the purpose of water blocking, a soft rubber plug is sleeved on the cable 4 to serve as a first water seal part 601, and a soft rubber sleeve is sleeved on the cable to serve as a second water seal part 602, wherein the outer wall of the first water seal part 601 is connected with the inner wall of the wall penetrating pipe 5 in a sealing mode, and the inner wall of the second water seal part 602 is connected with the outer wall of the wall penetrating pipe 5 in a sealing mode.
The cable trench prefabricating section comprises an indoor section 7 and an outdoor section 8 which are respectively arranged on two sides of the wall penetrating plate 3, the height of the trench bottom of the indoor section 7 is 150mm higher than that of the trench bottom of the outdoor section 8, a 17-degree downward inclined slope is arranged at the position, close to the wall penetrating plate 3, of the trench bottom of the indoor section 7, the lower end elevation of the downward inclined slope is equal to that of the trench bottom of the outdoor section 8, and the height of the trench top of the outdoor section 8 is 100mm higher than that of the ground. Normally, settlement joints 9 are arranged between the indoor section 7 and the outdoor section 8 and the outer wall of the building, and the settlement joints 9 are filled with asphalt hemp threads. When prefabricating, pre-buried steel plates 10 (i.e., pre-buried parts) for welding the cable support frames should be buried on the side walls of the indoor section 7 and the outdoor section 8. The top structures of the indoor section 7 and the outdoor section 8 are the same, and the indoor section and the outdoor section both comprise top surfaces 11 integrally cast with the side walls and support tables 13 matched with cover plates 12, wherein the top surfaces 11 are arranged close to one end of the wall penetrating plate 3, are about 500mm in length and are used for protecting a cable wall penetrating water seal; galvanized angle steel 14 is buried on the external corner line of the supporting table 13, so that the structural stability and the wear resistance are improved, and meanwhile, the cover plates 12 can be placed smoothly. After the cover plates 12 are covered on the support platforms 13, waterproof mortar joint mixtures are filled between the cover plates 12 and the support platforms 13 so as to prevent water from entering the cable trench.
When the cables 4 are installed, firstly, cable support frames are welded on the embedded steel plates 10 of the indoor section 7 and the outdoor section 8, the cables 4 are laid on the cable support frames in a layered mode, when the wall penetrating plate 3 is met, a second water seal piece 602 and a first water seal piece 601 are respectively arranged on each cable 4 in a penetrating mode, after the cables 4 penetrate through the wall penetrating pipe 5, the second water seal pieces 602 are jacked, the wall penetrating pipe 5 is installed on the outer wall of the wall penetrating pipe 5 in a sealing mode, and at the moment, the first water seal pieces 601 and the inner wall of the wall penetrating pipe 5 are also in a sealing connection state; then, a first water-sealing piece 601 and a second water-sealing piece 602 are respectively arranged on each cable 4 in a penetrating way, and are connected with the wall penetrating pipe 5 in a sealing way, so that the sealing installation of the water-sealing pieces is completed.
It should be noted that in the description of the present invention, terms such as "front", "rear", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Claims (10)
1. The utility model provides a structure is flowed backward in prevention of waterlogging of well small-section cable pit, is suitable for the cross section to be less than or equal to 400 mm's cable pit, its characterized in that: comprises that
The connecting section is arranged in a through hole of an outer wall of a building and comprises a wall penetrating plate integrally cast with a cable trench wall penetrating lintel, a plurality of wall penetrating pipes for penetrating cables are arranged on the wall penetrating plate, and water sealing pieces are arranged at two ends of each wall penetrating pipe;
prefabricated section of cable pit, including setting up indoor section and the outdoor section in wearing the wallboard both sides respectively, the trench bottom elevation of indoor section is higher than the trench bottom elevation of outdoor section, and is close to wearing wallboard department at the bottom of the trench of indoor section and is provided with down the slope, the low side elevation of slope is equal with the trench bottom elevation of outdoor section down.
2. The waterlogging-preventing backward-flowing structure of the medium-small section cable trench as claimed in claim 1, wherein: the thickness of the cable duct wall-penetrating lintel is equal to that of the building outer wall, the thickness of the wall-penetrating plate is half of that of the building outer wall, and the wall-penetrating plates are symmetrically arranged along the center line of the cable duct wall-penetrating lintel.
3. The waterlogging-preventing backward-flowing structure of the medium-small section cable trench as claimed in claim 1, wherein: the wall penetrating plate is internally provided with a double-layer reinforcing mesh, the wall penetrating pipes are arranged in the center of the wall penetrating plate, and each wall penetrating pipe is arranged in one mesh of the double-layer reinforcing mesh.
4. The waterlogging-preventing backward-flowing structure of the medium-small section cable trench as claimed in claim 1, wherein: the wall penetrating pipe is a galvanized steel pipe, the end part of the wall penetrating pipe is positioned outside the wall penetrating plate, and the outer diameter of the cable is smaller than the inner diameter of the wall penetrating pipe.
5. The waterlogging-preventing backward-flowing structure of the medium-small section cable trench as claimed in claim 4, wherein: the water seal part comprises a first water seal part and a second water seal part which are hermetically connected on the cable, the first water seal part is hermetically connected with the inner wall of the wall penetrating pipe, and the second water seal part is hermetically connected with the outer wall of the wall penetrating pipe.
6. The waterlogging-preventing backward-flowing structure of the medium-small section cable trench as claimed in claim 1, wherein: the ditch bottom elevation of indoor section is higher than the ditch bottom elevation 150mm of outdoor section, the slope of slope is 17 down, the ditch top elevation of outdoor section is higher than ground elevation 100 mm.
7. The waterlogging-preventing backward-flowing structure of the medium-small section cable trench as claimed in claim 1, wherein: settlement joints are arranged between the indoor sections and the outdoor sections and the outer wall of the building, and asphalt hemp thread fillers are arranged in the settlement joints.
8. The waterlogging-preventing backward-flowing structure of the medium-small section cable trench as claimed in claim 1, wherein: and embedded parts used for welding the cable support frame are arranged on the side walls of the indoor section and the outdoor section.
9. The waterlogging-prevention backward-flowing structure for medium and small-section cable ducts of claim 1, characterized in that: the top of indoor section and outdoor section includes the top surface of pouring with the lateral wall integration and with the brace table of apron looks adaptation, the top surface is close to and wears wallboard one end and sets up, be provided with galvanized angle steel on the external corner line of brace table.
10. The waterlogging-prevention backward-flowing structure for medium and small-section cable ducts of claim 9, characterized in that: and waterproof mortar joint mixtures are arranged between the cover plates and the supporting platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122975345.7U CN216839944U (en) | 2021-11-30 | 2021-11-30 | Anti-waterlogging backward-flowing structure of medium and small-section cable trench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122975345.7U CN216839944U (en) | 2021-11-30 | 2021-11-30 | Anti-waterlogging backward-flowing structure of medium and small-section cable trench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216839944U true CN216839944U (en) | 2022-06-28 |
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ID=82104692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122975345.7U Active CN216839944U (en) | 2021-11-30 | 2021-11-30 | Anti-waterlogging backward-flowing structure of medium and small-section cable trench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216839944U (en) |
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2021
- 2021-11-30 CN CN202122975345.7U patent/CN216839944U/en active Active
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