CN213461071U - Channel cover plate with embedded sensing lines - Google Patents
Channel cover plate with embedded sensing lines Download PDFInfo
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- CN213461071U CN213461071U CN202022408052.6U CN202022408052U CN213461071U CN 213461071 U CN213461071 U CN 213461071U CN 202022408052 U CN202022408052 U CN 202022408052U CN 213461071 U CN213461071 U CN 213461071U
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Abstract
The utility model provides a channel cover plate with a pre-buried sensing wire, which comprises a cover plate upper part, a sensing wire pre-buried in the cover plate upper part and a sensing wire joint connected with the sensing wire and extending out from the lower end surface of the cover plate upper part, wherein the distance from the sensing wire to the top surface of the cover plate upper part is 7/10-4/5 cover plate upper part thickness; the sensing lines in the channel cover plate have very high detection sensitivity.
Description
Technical Field
The utility model belongs to the technical field of the channel apron, in particular to channel apron of pre-buried sensing line.
Background
A large number of cables and optical cable channels exist in the power generation facility, and in order to ensure the safety of the cables and the optical cables in the channels, prevent the cables and the optical cables from being aged due to direct irradiation of sunlight and prevent rainwater, dust and sundries from falling into the channels, channel cover plates with a protection effect must be arranged on the channels. The existing channel cover plate is made of cement reinforced concrete materials, polymer composite materials and the like, but is exposed outside for a long time and is subjected to mechanical force effects of rolling, carrying, prying and the like for a long time, so that the existing channel cover plate is very easy to damage, and a worker is required to overhaul the existing channel cover plate regularly, so that the damage condition of the channel cover plate is not easy to detect in time; in order to detect the damage of the channel cover, CN110095504A and CN111089716A disclose a channel cover which can be used to monitor the damage and uncovering status of the channel cover. However, the sensing lines pre-buried in the channel cover plate disclosed by the prior art have low detection sensitivity, and how to improve the detection sensitivity of the pre-buried sensing lines is a problem which needs to be solved urgently at present.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a channel cover plate of pre-buried sensing line.
The utility model discloses one of them technical scheme provides a channel apron of pre-buried sensing line, the channel apron is including apron upper portion, pre-buried sensing line in the apron upper portion, with the sensing line is connected and is connected the sensing line that stretches out from apron upper portion lower extreme face and connect, the distance of sensing line distance apron upper portion top surface is 7/10-4/5 apron upper portion thickness.
The position of pre-embedding the sensing lines in the channel cover plate is proper, if the pre-embedding position of the sensing lines is too deviated to the top surface of the upper part of the cover plate, the problem of low detection sensitivity exists, and if the pre-embedding position of the sensing lines is too deviated to the bottom surface of the upper part of the cover plate, the sensing lines are likely to break firstly under the condition that the deformation of the channel cover plate is not enough to be damaged, so that the pre-embedding sensing lines on the upper part of the cover plate are selected to be the positions which are far away from the thickness of the upper part of the 7/10-4/5 of the top surface of the cover plate, the pre-embedding sensing lines can be ensured; and when having avoided channel apron deformation not enough, the condition that the sensing wire broke earlier appears.
In a further improved scheme, the sensing line is tightly combined with a cover plate material forming the upper part of the cover plate. The cover material is preferably cement.
When injecing sensing line and apron material close combination and can guarantee that channel cover takes place deformation, the sensing line can split under the effect of pulling force, and then realizes the detection to the damaged condition of channel cover.
In a further improved scheme, the channel cover plate further comprises a cover plate lower part, a reinforcing mesh is pre-embedded in the cover plate lower part, and the reinforcing mesh consists of a plurality of reinforcing mesh grids; the reinforcing mesh divides the lower part of the cover plate into a plurality of hollow grids, and the distances from the sensing lines to the periphery of the upper part of the cover plate are equal.
The reinforcing mesh is arranged at the lower part of the cover plate, so that the damage resistance of the channel cover plate can be improved.
In a further improved scheme, the distance between the sensing wire joint and the periphery of the hollow grid is more than 0.5cm, preferably 3-5cm, and the height of the part, extending out of the lower end face of the upper part of the cover plate, of the sensing wire joint is not higher than that of the lower part of the cover plate.
The distance between the limited sensing line joint and the periphery of the hollow grid is preferably 3-5cm, so that construction is facilitated. And in order to prevent the collision of the sensing wire terminal and improve the detection sensitivity, the height of the extending part of the sensing wire terminal should not be higher than the lower part of the cover plate.
In a further improved scheme, the sensing wire and the reinforcing steel bar are not arranged on the same longitudinal section.
The sensing wire should be arranged on the outer ring and cannot be arranged on the same longitudinal section with the reinforcing steel bar. When the channel cover plate is damaged, the breakage of the sensing wire can be ensured.
In a further improved scheme, the sensing line is positioned at the position 2/5-3/5 of the length of the outermost hollow grid around the lower part of the cover plate.
The sensitivity of the sensing line detection at this position is higher.
In a further improved scheme, the ratio of the thickness of the upper part of the cover plate to the thickness of the lower part of the cover plate is 1: 2.
In a further improved scheme, the cross section diameter of the sensing wire is 0.1-2 mm.
In a further improved scheme, the resistance of the sensing line is less than 1 omega.
The resistance value and the cross section diameter of the sensing wire are limited to ensure that the sensing wire not only has high detection sensitivity, but also cannot be broken in the preparation process.
In a further improved scheme, when the channel cover plate meets the following conditions, a sensing line pre-buried in the upper part of the cover plate is broken:
the channel cover plate creates a through crack that is greater than 20cm long,
the area of the channel cover plate is more than 50cm2The pit holes of the upper and lower plates are arranged in the pit holes,
or the channel cover plate creates a depression of greater than 3 cm.
When the above situation occurs in the channel cover plate, the channel cover plate is damaged, and the safe use cannot be guaranteed, so that the sensing line pre-buried in the channel cover plate needs to be broken, and the channel cover plate should be kept in a closed state in other times.
The utility model has the advantages as follows: the utility model provides a pair of channel cover plate of pre-buried sensing line, pre-buried sensing line has very high detectivity in this channel cover plate, and in the preparation process, the difficult fracture of sensing line.
Drawings
FIG. 1 is a perspective view of a channel cover plate with embedded sensing lines;
FIG. 2 is a bottom perspective view of a trench cover with embedded sense lines;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is an enlarged view taken at A in FIG. 3;
FIG. 5 is an enlarged view at B in FIG. 3;
FIG. 6 is an enlarged view of an aircraft joint;
fig. 7 is a longitudinal sectional view of the upper portion of the cover plate.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings.
Example 1
A first embodiment of the present invention provides a channel cover plate with embedded sensing lines, as shown in fig. 1 and 2, the channel cover plate comprises a cover plate upper portion 10, a cover plate lower portion 20, sensing lines 30 embedded in the cover plate upper portion, sensing line connectors 40 connected to the sensing lines 30 and extending from the lower end surface of the cover plate upper portion 10, and a reinforcing mesh (not shown) embedded in the cover plate lower portion 20, the reinforcing mesh comprising a plurality of reinforcing meshes; the mesh reinforcement divides the lower portion 20 of the cover plate into a plurality of hollow cells 41, preferably in a square configuration, as shown in fig. 4, and the sensing wire connectors 40 are located in the hollow cellsIn the grid, wherein the sensing line connector is preferably an aviation connector made of metal material and provided with a dust cover, the aviation connector is structured as shown in fig. 6, and the distance H from the sensing line connector 40 to the periphery of the hollow grid is continuously referred to in fig. 25The height of the extending part of the sensing wire joint 40 from the lower end surface of the cover plate upper part 10 is not higher than that of the cover plate lower part 20, so that the transportation is convenient, and the collision of the sensing wire joint is prevented; as shown in fig. 3 and 5, the sensing line 30 is spaced apart from the top surface of the upper portion 10 of the cover plate by a distance H13/4 cover plate upper thickness H2With continued reference to FIG. 2, the sensing line 30 is spaced a distance H from the upper perimeter of the cover plate3Equal length H of the outermost hollow grid 41 positioned at the periphery of the lower part of the cover plate4At position 1/2. The diameter of the cross section of the sensing wire is 0.5mm, the resistance is smaller than 1 omega, and the ratio of the thickness of the upper part of the cover plate to the thickness of the lower part of the cover plate is 1: 2. The material of the channel cover plate is cement.
The utility model provides a channel apron is through the restriction of laying the position of sensing line to sensing line and apron material combine closely, and then show the detectivity who improves the sensing line in the channel apron, when specifically detecting, the sensing line connects through another public head and is connected with detection device, realizes the detection to the apron destruction or state of uncapping, and detection device's structure is referred to the content disclosed in CN110095504A or CN 111089716A; and when the channel cover plate meets the following conditions, the sensing wire pre-embedded in the upper part of the cover plate is broken, and whether the rest are necessary to be a passage or not.
The channel cover plate creates a through crack that is greater than 20cm long,
the area of the channel cover plate is more than 50cm2A pit, or
The channel cover plate creates a depression of greater than 3 cm.
Example 2
The second embodiment of the utility model provides a channel apron of pre-buried sensing line, this channel apron is on embodiment 1's basis, sensing line 30 is apart from the distance H of the 10 top surfaces in apron upper portion14/5 cover plate upper thickness H2The distance H between the sensing line 30 and the periphery of the upper part 10 of the cover plate3Equal, at the lower part of the cover plateLength H of hollow grid 41 at outermost side of periphery4At position 2/5, the cross-sectional diameter of the sensor wire is 1mm, and the distance between the sensor wire connector 40 and the periphery of the hollow grid is 3 cm.
Example 3
The utility model discloses a third embodiment provides a channel apron of pre-buried sensing line, and this channel apron is on embodiment 1's basis, sensing line 30 is apart from the distance H who laps 10 top surfaces in upper portion17/10 cover plate upper thickness H2The distance H between the sensing line 30 and the periphery of the upper part 10 of the cover plate3Equal length H of the outermost hollow grid 41 positioned at the periphery of the lower part of the cover plate4At position 3/5, the cross-sectional diameter of the sensor wire is 2mm, and the distance of the sensor wire connector 40 from the periphery of the hollow grid is 4 cm.
Example 4
A fourth embodiment of the present invention provides a channel cover plate with a pre-buried sensing line, as shown in fig. 7, the channel cover plate is based on embodiment 1, a resin layer 11 is disposed in the cover plate upper portion 10, and the sensing line 30 is pre-buried in the resin layer 11; the resin layer is preferably a resin layer formed by curing a polyamide resin. The bond property of the sensing line connected with the upper part of the cover plate is improved by arranging the resin layer, and the detection sensitivity of the sensing line is further improved.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (9)
1. The channel cover plate with the embedded sensing lines comprises a cover plate upper part, the sensing lines embedded in the cover plate upper part and sensing line connectors connected with the sensing lines and extending out of the lower end face of the cover plate upper part, and is characterized in that the distance between the sensing lines and the top face of the cover plate upper part is 7/10-4/5 of the thickness of the cover plate upper part.
2. A pre-buried sensor wire channel cover plate as set forth in claim 1, wherein the sensor wire is tightly combined with a cover plate material constituting an upper portion of the cover plate.
3. The channel cover plate for embedded sensor lines of claim 1, further comprising a cover plate lower part, wherein a steel bar mesh is embedded in the cover plate lower part, and the steel bar mesh is composed of a plurality of steel bar meshes; the lower part of the cover plate is divided into a plurality of hollow grids by the reinforcing mesh, and the sensing wire connectors are positioned in the hollow grids; the distance between the sensing line and the periphery of the upper part of the cover plate is equal.
4. The channel cover plate for embedded sensing wires of claim 3, wherein the distance between the sensing wire joint and the periphery of the hollow grid is more than 0.5cm, and the height of the part of the sensing wire joint extending out of the lower end surface of the upper part of the cover plate is not higher than that of the lower part of the cover plate.
5. The channel cover plate of embedded sensing wire of claim 3, wherein the sensing wire and the reinforcing steel bar are not arranged on the same longitudinal section.
6. A pre-buried sensor wire channel cover plate as claimed in claim 3, wherein the sensor wire is located at 2/5-3/5 of the length of the outermost hollow grid around the lower portion of the cover plate.
7. The channel cover plate of an embedded sensor wire according to claim 3, wherein the ratio of the thickness of the upper part of the cover plate to the thickness of the lower part of the cover plate is 1: 2.
8. The channel cover plate of an embedded sensor wire as claimed in claim 1, wherein the cross-sectional diameter of the sensor wire is 0.1-2 mm.
9. The channel cover plate for embedded sensor lines of claim 8, wherein the resistance of the sensor lines is less than 1 Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022408052.6U CN213461071U (en) | 2020-10-26 | 2020-10-26 | Channel cover plate with embedded sensing lines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022408052.6U CN213461071U (en) | 2020-10-26 | 2020-10-26 | Channel cover plate with embedded sensing lines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213461071U true CN213461071U (en) | 2021-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022408052.6U Active CN213461071U (en) | 2020-10-26 | 2020-10-26 | Channel cover plate with embedded sensing lines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213461071U (en) |
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2020
- 2020-10-26 CN CN202022408052.6U patent/CN213461071U/en active Active
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