CN204793969U - Calandria structure of backward flow line is laid with hole - Google Patents
Calandria structure of backward flow line is laid with hole Download PDFInfo
- Publication number
- CN204793969U CN204793969U CN201520553951.1U CN201520553951U CN204793969U CN 204793969 U CN204793969 U CN 204793969U CN 201520553951 U CN201520553951 U CN 201520553951U CN 204793969 U CN204793969 U CN 204793969U
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- cable
- calandria
- hole
- return wire
- comb
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Abstract
The utility model discloses a calandria structure of backward flow line is laid with hole, the basement sets up in calandria passageway bottom in advance, and calandria passageway upper portion is equipped with the apron, and the cable calandria sets up in the calandria passageway, and the cable is placed in the cable calandria, and the interval equals between the adjacent cable calandria, still is equipped with the backward flow line in the cable calandria, the whole transversal ellipse of personally submitting of backward flow line, can reduce the envelope size when laying with the hole with the cable, satisfy and standardize the requirement, realize in the calandria with laying in the hole, backward flow line and cable are placed in same cable calandria, more be favorable to laying when reducing envelope size resources are saved, simple structure, the practicality is strong.
Description
Technical field
The utility model relates to technical field of civil engineering, particularly relates to the calandria structure that return wire is laid in a kind of same hole.
Background technology
The demand of development to electric energy in city is growing, how when not affecting urban look and space utilization, electric energy safe is sent to smoothly the every nook and cranny in city, putting cable underground is the most direct the best way, and for making outside cable circuit from the injury such as mechanical damage, chemical corrosion, cable laying has just become the most frequently used a kind of scheme in cable duct bank.Exchange metallic sheath or the screen of single-core cable, circuit has a bit direct ground connection at least, under the direct Grounding of single-point during system short-circuit, metal level line-frequency induction voltage can exceed cable sheath insulation withstand strength or shield voltage limiter industrial frequency withstand voltage intensity, needs to arrange return wire when therefore needing to suppress cable to close on the electric interference strength of weakness circuit.Current cable by comb lay add return wire time often return wire need the position, comb hole outside occupying volume, cause the occasion wasting of resources to a certain degree of position, original hole anxiety.
Current cable by comb lay add return wire time often return wire need the position, comb hole outside occupying volume, cause the occasion wasting of resources to a certain degree of position, original comb hole anxiety.According to GB50217-2007 " Code for design of cables of electric works ", bore should not be less than 1.5 times of the outside diameter of cable or multi-cable envelope external diameter.Therefore can consider to adopt novel return wire form, be similar to flat ellipse, carry out cable and return wire lays application with hole.
Therefore, those skilled in the art is devoted to develop the calandria structure that return wire is laid in a kind of same hole, and return wire and cable are positioned in same cable comb, are more conducive to laying while economizing on resources, and structure is simple, practical.
Utility model content
Because the above-mentioned defect of prior art, technical problem to be solved in the utility model is to provide the calandria structure that return wire is laid in a kind of same hole, the overall cross section ovalize of return wire, return wire and cable are positioned in same cable comb, reduce envelope size, more be conducive to while economizing on resources laying, structure is simple, practical.
For achieving the above object, the utility model provides the calandria structure that return wire is laid in a kind of same hole, comprise cable and cable duct bank, comb passage, cover plate, substrate, substrate is pre-set at comb channel bottom, and comb channel upper is provided with cover plate, and cable duct bank is arranged in comb passage, cable is positioned in cable duct bank, between adjacent cable comb, interval is equal, is also provided with return wire in cable duct bank, the overall cross section ovalize of described return wire.
Further, the material of cable duct bank is plastic material or HBB glass reinforced plastic pipe;
Further, the inner pore diameter range of cable duct bank is 150mm-175mm;
Further, cover plate is steel reinforced concrete cover plate.
The beneficial effects of the utility model:
The utility model designs due to said structure, substrate is pre-set at comb channel bottom, comb channel upper is provided with cover plate, cable duct bank is arranged in comb passage, cable is positioned in cable duct bank, between adjacent cable comb, interval is equal, also return wire is provided with in cable duct bank, the overall cross section ovalize of described return wire, provide a kind of same hole to lay the calandria structure of return wire, return wire and cable are positioned in same cable comb, reduce envelope size, more be conducive to while economizing on resources laying, structure is simple, practical.
Be described further below with reference to the technique effect of accompanying drawing to design of the present utility model, concrete structure and generation, to understand the purpose of this utility model, characteristic sum effect fully.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art.
Fig. 2 is structural representation of the present utility model.
Embodiment
As shown in Figure 2, the specific embodiment of the calandria structure of return wire is laid in a kind of same hole of the utility model, comprise cable 1 and cable duct bank 2, comb passage 3, cover plate 4, substrate 5, described substrate 5 is pre-set at bottom comb passage 3, and comb passage 3 top is provided with cover plate 4, and cable duct bank 2 is arranged in comb passage 3, cable 1 is positioned in cable duct bank 2, between adjacent cable comb 2, interval is equal, is also provided with return wire 6 in cable duct bank 2, the overall cross section ovalize of described return wire 6.
The technical scheme that the utility model is optimized further, the material of described cable duct bank 2 is plastic material or HBB glass reinforced plastic pipe, and the inner pore diameter range of described cable duct bank 2 is 150mm-175mm, and described cover plate 4 is steel reinforced concrete cover plate.
As shown in Figure 2, adopt novel forms return wire, be beneficial to it on the one hand to lay, there is less envelope on the other hand can address this problem when circular return wire and cable do not meet and lay requirement with hole, cable and return wire are laid with hole, this form can solve return wire and additionally account for hole problem, improves comb utilance, reduces the wasting of resources of position, hole.
Prior art return wire is circular, needs the position, comb hole outside occupying volume, when comb aperture is less, cannot meets same hole and lay.Adopt oval return wire, envelope circle size can be reduced, meet code requirement, realize same hole and lay, improve comb utilance.In accompanying drawing 1, circular return wire lays with hole is contrast as oval return wire, and accompanying drawing 2 is compared with accompanying drawing 1, can find that accompanying drawing 2 envelope size substantially reduces.
More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to design of the present utility model without the need to creative work.Therefore, all technical staff in the art according to design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should by the determined protection range of claims.
Claims (4)
1. one kind is laid the calandria structure of return wire with hole, comprise cable (1) and cable duct bank (2), comb passage (3), cover plate (4), substrate (5), it is characterized in that: described substrate (5) is pre-set at comb passage (3) bottom, comb passage (3) top is provided with cover plate (4), cable duct bank (2) is arranged in comb passage (3), cable (1) is positioned in cable duct bank (2), between adjacent cable comb (2), interval is equal, return wire (6) is also provided with in cable duct bank (2), the described overall cross section ovalize of return wire (6).
2. the calandria structure laying return wire with hole as claimed in claim 1, is characterized in that: the material of described cable duct bank (2) is plastic material or HBB glass reinforced plastic pipe.
3. the calandria structure laying return wire with hole as claimed in claim 1, is characterized in that: described cable duct bank (2) inner pore diameter range is 150mm-175mm.
4. the calandria structure laying return wire with hole as claimed in claim 1, is characterized in that: described cover plate (4) is steel reinforced concrete cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520553951.1U CN204793969U (en) | 2015-07-28 | 2015-07-28 | Calandria structure of backward flow line is laid with hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520553951.1U CN204793969U (en) | 2015-07-28 | 2015-07-28 | Calandria structure of backward flow line is laid with hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204793969U true CN204793969U (en) | 2015-11-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520553951.1U Active CN204793969U (en) | 2015-07-28 | 2015-07-28 | Calandria structure of backward flow line is laid with hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204793969U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107370097A (en) * | 2017-08-18 | 2017-11-21 | 山东农业大学 | A kind of prefabricated assembled FRP tendons pervious concrete cable duct bank |
-
2015
- 2015-07-28 CN CN201520553951.1U patent/CN204793969U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107370097A (en) * | 2017-08-18 | 2017-11-21 | 山东农业大学 | A kind of prefabricated assembled FRP tendons pervious concrete cable duct bank |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |