Novel cable well structure capable of being connected with large-burial-depth cable

Abstract

The utility model discloses a novel cable well structure capable of accessing a large burial depth cable, which comprises a well body dug downwards from the ground of an incoming line room, the top surface of the well body is covered with a cover plate, the upper surface of the cover plate is flush with the surface of the ground of the incoming line room, a fireproof partition plate is arranged in an inner cavity of the well body, and the fireproof partition plate is arranged in the inner cavity of the well body. The inner cavity of the well body is divided into two independent cavities by the fireproof partition plate, a plurality of casing holes for casing penetrating are formed in the side wall, close to a pre-access cable, of any cavity, and the multiple casings are used for accessing the cables at the corresponding positions. According to the utility model, horizontal access of a cable which is deeply buried can be realized, inclined laying is not needed, cross conflict with other water supply and drainage pipelines, gas pipelines and the like is avoided, the problem of difficult construction caused by the fact that an outdoor cable enters a cable inlet room in a cable-stayed manner is avoided, only local excavation is involved, and the construction cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of cable laying, and more specifically, to a new type of cable well structure capable of accessing cables buried at a great depth. Background Art

[0002] Cables laid outdoors (directly buried or in pipes) are often difficult to construct because of the large number of pipelines and the deep burial depth. When connected to the indoor incoming line room, they are laid obliquely, which makes construction difficult. If other pipelines cross, it will be even more difficult to implement. This problem can be solved by lowering the ground elevation of the indoor incoming line room to the elevation of the pre-connected cables, but this will undoubtedly greatly increase the construction cost. Utility Model Content

[0003] Another object of the utility model is to provide a new type of cable well structure that can access cables buried at a great depth, which can achieve horizontal access of cables buried at a great depth without the need for oblique laying, thus avoiding cross-conflicts with other water supply and drainage pipelines, gas pipelines, etc., and avoiding construction difficulties caused by oblique pulling of outdoor cables into the incoming line room, and only involves local excavation, so the construction cost is relatively low.

[0004] In order to achieve these purposes and other advantages according to the utility model, a new type of cable well structure that can access cables with a large buried depth is provided, including a well body dug downward from the ground of the incoming line room, the top surface of the well body is covered with a cover plate, the upper surface of the cover plate is flush with the surface of the ground of the incoming line room, the inner cavity of the well body is provided with a fireproof partition, and the fireproof partition divides the inner cavity of the well body into two independent chambers. A plurality of casing holes for the insertion of casings are opened on the side wall of any chamber close to the pre-connected cable, and the plurality of casings are used to connect the cables at corresponding positions.

[0005] Preferably, a cable tray for laying cables is pre-buried on the inner wall of any chamber.

[0006] Preferably, the well body is a rectangular structure, a concrete cushion layer is provided at the bottom of the well body, structural columns are symmetrically arranged around the well body, any structural column is vertically arranged and connected to the upper surface of the concrete cushion layer, the tops of multiple structural columns are commonly connected to a ring beam, and the cover plate covers the ring beam.

[0007] Preferably, the upper surface of the concrete cushion layer is backfilled with plain soil.

[0008] Preferably, a water-permeable hole is opened on the concrete cushion layer, and the water-permeable hole passes through the concrete cushion layer from top to bottom.

[0009] Preferably, I-beams are symmetrically pre-embedded on the lower surface of the cover plate and the upper surface of the plain soil, and the fireproof partition is disposed between two of the I-beams.

[0010] The present invention at least includes the following beneficial effects: the cable well structure of the present invention is opened below the ground of the incoming line room, and cables with a deeper burial depth can be connected to the well body horizontally without being laid obliquely, thus avoiding cross-conflicts with other water supply and drainage pipelines, gas pipelines, etc., and avoiding construction difficulties caused by obliquely pulling outdoor cables into the incoming line room, and only involving local excavation, with low construction costs; in addition, the inner cavity of the well body is provided with a fireproof partition, which divides the inner cavity into two chambers, one of which is used to connect fire-fighting cables, and the other is used to connect non-fire-fighting cables, thereby reducing the impact of faults such as short circuits of non-fire-fighting cables on fire-fighting cables, ensuring the reliability of power supply of fire-fighting lines, and thus ensuring the stability of fire-fighting electrical equipment in buildings.

[0011] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the utility model arranged in the incoming line room;

[0013] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0014] Figure 3 This is a front view structural schematic diagram of the utility model;

[0015] Description of the Figures in the Specification:

[0016] 1. Inlet room, 2. Well body, 3. Cover plate, 4. Fireproof partition, 5. Casing hole, 6. Casing, 7. Cable tray, 8. Concrete cushion, 9. Structural column, 10. Ring beam, 11. Bare soil, 12. Water-permeable hole, 13. Drain pipe, 14. Cable, 15. Cable trough. DETAILED DESCRIPTION

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0018] It should be noted that, in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description. They 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 therefore cannot be understood as a limitation on the present invention.

[0019] like Figure 1-3 As shown, the utility model provides a novel cable well structure that can be connected to cables with a great burial depth, including a well body 2 dug downward from the ground of an incoming line room 1, the top surface of the well body 2 is covered with a cover plate 3, the upper surface of the cover plate 3 is flush with the surface of the ground of the incoming line room 1, the inner cavity of the well body 2 is provided with a fireproof partition 4, the fireproof partition 4 divides the inner cavity of the well body 2 into two independent chambers, and a plurality of casing holes 5 for the insertion of casings 6 are opened on the side wall of any chamber near the pre-connected cable 14, and the plurality of casings 6 are used to connect the cables 14 at corresponding positions.

[0020] In the above technical scheme, in the indoor incoming line room 1 of the prior art, a local well body 2 structure is formed by digging at the position where the cable 14 needs to be connected, and the cable 14 with a deeper burial depth can be horizontally connected to the well body 2, and then the laying is completed in the well body 2. The digging depth of the well body 2 is determined according to the burial depth of the pre-connected cable 14, and the width is determined according to the width of the pre-connected cable 14 channel; a fireproof partition 4 is set in the inner cavity of the well body 2 to divide the inner cavity into two chambers, one of which is used to connect the fire-fighting cable 14, and the other is used to connect the non-fire-fighting cable 14, so as to reduce the impact of faults such as short circuit of the non-fire-fighting cable 14 on the fire-fighting cable 14, ensure the reliability of the fire-fighting line power supply, and thus ensure the fire-fighting electrical equipment of the building. Stability, the material of the fireproof partition 4 is selected according to the project situation and must meet the corresponding fire resistance limit; the casing 6 is used to connect the cable 14 at the corresponding position, and the two ends of the casing 6 are connected to the corresponding chamber and the outdoor cable well. It is more convenient for the pre-connected cable 14 to be directly inserted into the chamber through the casing 6 and then laid. The number of casings 6 is determined according to the number of pre-connected cables 14; the utility model realizes horizontal access of cables 14 with a deeper burial depth by digging a well body 2 in the local incoming line room 1, without the need for oblique laying, avoiding cross-conflicts with other water supply and drainage pipelines, gas pipelines, etc., and avoiding the construction difficulties caused by the oblique pulling of the outdoor cable 14 into the incoming line room 1, and only involves local excavation, and the construction cost is relatively low.

[0021] In another technical solution, a cable tray 7 for laying cables 14 is pre-buried on the inner wall of any chamber.

[0022] In this technical solution, if Figure 3 As shown, a cable tray 7 is arranged on the inner wall of the chamber. The cable 14 is connected to the chamber through the casing 6 and then transferred to the tray 7 for laying. The laying of the tray 7 can significantly improve the convenience of the construction of the cable 14, and also has great advantages in inspection and maintenance. The cable tray 7 is also connected to the wire duct 15 opened on the ground of the incoming line room 1. After the cable 14 is laid through the tray 7 in the chamber, it is concealedly laid along the wire duct 15 on the ground of the incoming line room 1 to the wall, thereby increasing the aesthetics and convenience of the laying of the cable 14.

[0023] In another technical solution, the well body 2 is a rectangular structure, a concrete cushion layer 8 is provided at the bottom of the well body 2, structural columns 9 are symmetrically provided around the well body 2, any structural column 9 is vertically arranged and connected to the upper surface of the concrete cushion layer 8, the tops of multiple structural columns 9 are commonly connected to a ring beam 10, and the cover plate 3 covers the ring beam 10.

[0024] In this technical solution, if Figure 3 As shown, a C25 concrete cushion layer 8 is provided at the bottom of the well body 2, and structural columns 9 are provided at the four corners of the well body 2. The structural columns 9 can be built with MU20 autoclaved fly ash bricks and MU7.5 cement mortar. Each structural column 9 is equipped with 4C14, C6@200. A ring beam 10 is provided on the upper part of the structural column 9. The ring beam 10 is equipped with 4C12, C6@200, and C represents HRB400 steel bars. The concrete cushion layer 8, the structural column 9 and the ring beam 10 are used to improve the structural stability and bending and shear resistance of the well body 2.

[0025] In another technical solution, the upper surface of the concrete cushion layer 8 is backfilled with plain soil 11 .

[0026] In this technical solution, after the cable 14 is connected and laid in the chamber, the plain soil 11 is backfilled to a depth of 1 m, and the plain soil 11 is used to bury the protective casing 6.

[0027] In another technical solution, a water-permeable hole 12 is provided on the concrete cushion layer 8, and the water-permeable hole 12 passes through the concrete cushion layer 8 from top to bottom. In this technical solution, the water-permeable hole 12 is used to prevent water from accumulating in the area filled with the plain soil 11.

[0028] In another technical solution, I-beams are symmetrically embedded in the lower surface of the cover plate 3 and the upper surface of the base soil 11, and the fireproof partition 4 is clamped between the two I-beams. In this technical solution, the I-beam facilitates the installation of the fireproof partition 4.

[0029] In another technical solution, a slope leveling layer is provided on the upper surface of the plain soil 11, and a drainage pipe 13 is provided at the lowest point of the slope leveling layer, and the drainage pipe 13 is connected to an adjacent rainwater well.

[0030] In the present technical solution, a drainage pipe 13 is provided in both chambers, and the drainage pipe 13 is connected to the adjacent rainwater well, so that the accumulated water can be directly discharged to the rainwater well; a steel casing 6 can be reserved on the side wall of the chamber at a position corresponding to the setting of the drainage pipe 13, and the drainage pipe 13 is passed through the steel casing 6 to facilitate the installation of the drainage pipe 13. Multiple drainage pipes 13 can be provided in any chamber according to the water accumulation situation to improve the drainage efficiency.

[0031] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A new type of cable well structure that can access cables buried at great depths. It is characterized in that It includes a well body dug downward from the ground of the incoming line room, the top surface of the well body is covered with a cover plate, the upper surface of the cover plate is flush with the surface of the ground of the incoming line room, the inner cavity of the well body is provided with a fireproof partition, the fireproof partition divides the inner cavity of the well body into two independent chambers, and a plurality of casing holes for the insertion of casings are opened on the side wall of any chamber close to the pre-connected cable, and the plurality of casings are used to connect the cables at corresponding positions.

2. The new cable well structure capable of accessing cables buried at a great depth as claimed in claim 1, It is characterized in that A cable tray for laying cables is pre-buried on the inner wall of any chamber.

3. The new cable well structure capable of accessing cables buried at a great depth as claimed in claim 1, It is characterized in that The well body is a rectangular structure, a concrete cushion layer is arranged at the bottom of the well body, structural columns are symmetrically arranged around the well body, any structural column is vertically arranged and connected to the upper surface of the concrete cushion layer, the tops of multiple structural columns are commonly connected to a ring beam, and the cover plate covers the ring beam.

4. The new cable well structure capable of accessing cables buried at a great depth as claimed in claim 3, It is characterized in that The upper surface of the concrete cushion layer is backfilled with plain soil.

5. The new cable well structure capable of accessing cables buried at a great depth as claimed in claim 3, It is characterized in that The concrete cushion layer is provided with water-permeable holes, and the water-permeable holes penetrate the concrete cushion layer from top to bottom.

6. The new cable well structure capable of accessing cables buried at a great depth as claimed in claim 4, It is characterized in that I-beams are symmetrically pre-embedded on the lower surface of the cover plate and the upper surface of the plain soil, and the fireproof partition is clamped between two of the I-beams.

7. The new cable well structure capable of accessing cables buried at a great depth as claimed in claim 4, It is characterized in that A slope leveling layer is arranged on the upper surface of the plain soil, a drainage pipe is arranged at the lowest part of the slope leveling layer, and the drainage pipe is connected to an adjacent rainwater well.

Images