Corner well structure with double cable duct banks

By using modular prefabricated well bodies and supports, bases, and positioning rings with large curvature designs, the problems of long construction cycles and easy cable damage in existing cable duct corner wells have been solved, achieving rapid assembly and efficient cable protection.

CN223510382UActive Publication Date: 2025-11-04DONGGUAN BAICHENGBAI CONSTR ENG CO LTD
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Patent Information

Application Number
CN202422902038.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-27
Publication Date
2025-11-04
Estimated Expiration
2034-11-27

AI Technical Summary

Technical Problem

The existing cable duct corner wells have a large excavation area, which affects the surrounding traffic and residents' lives. The concrete pouring cycle is long, the construction time and cost are high, the cable turning radius is small, which makes it easy to be damaged and reduces its service life.

Method used

The system employs efficient modular prefabricated well bodies and rapid assembly construction methods, combined with brackets, bases, and positioning rings designed with large curvature. It increases the cable bending radius through splicable well bottoms, well walls, and bolt connections, and uses rubber gaskets and waterproof materials to improve stability and sealing.

Benefits of technology

It significantly shortens the construction period, reduces disruption to traffic and residents' lives, significantly reduces the risk of cable stress damage, extends cable service life, and improves construction efficiency and cable impact resistance.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223510382U_ABST
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Abstract

The utility model relates to the technical field of civil construction engineering, and discloses a double-cable duct bank corner well structure which comprises a well bottom, a first well wall is arranged on the upper surface of the well bottom, a second well wall is arranged on the upper surface of the well bottom, and first mounting plates are fixedly connected to the bottoms of the inner walls of the first well wall and the second well wall. According to the double-cable duct bank corner well structure, by arranging the well bottom, the first well wall and the second well wall which can be spliced, a corner well can be prefabricated and quickly spliced, the construction period is greatly shortened, interference to urban traffic and resident life is reduced, by arranging the support, the base and the positioning ring which are arranged in a large-curvature arc shape, the cable turning radius is increased, and the cable turning efficiency is improved. The risk that the cable is damaged due to stress is remarkably reduced, the service life of the cable is prolonged, and the problems that an existing corner well is large in excavation area, long in concrete pouring period, high in construction time and cost, small in cable turning radius, prone to damage and short in service life are solved.
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Description

Technical Field

[0001] This application relates to the field of civil engineering technology, specifically a double cable duct corner well structure. Background Technology

[0002] Cable duct corner wells are a type of cable well, typically used where the cable laying angle changes, making it easier for workers to install and maintain the cable at the corner.

[0003] Currently, common corner wells typically involve excavating a large pit of a certain depth in the ground, then pouring concrete to form the well wall, and finally laying cable ducts to complete the corner transition. This type of corner well design involves a large excavation area, affecting surrounding traffic and residents' lives. The long concrete pouring cycle increases construction time and costs. The small turning radius of the cables inside the corner well can easily cause cable damage and reduce service life, indicating room for improvement. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides a double-cable duct corner well structure. It features an efficient modular prefabricated well body and a rapid assembly construction method, significantly shortening the construction cycle and reducing disruption to urban traffic and residents' lives. The large curvature design increases the cable turning radius, significantly reducing the risk of cable stress damage and extending cable lifespan. This solves the problems of existing corner wells, such as large excavation areas affecting surrounding traffic and residents' lives, long concrete pouring cycles increasing construction time and costs, and small cable turning radii within the corner wells, which easily cause cable damage and reduce service life.

[0005] To achieve the above objectives, this application provides the following technical solution: a double cable pipe corner well structure, including a well bottom, a first well wall on the upper surface of the well bottom, a second well wall on the upper surface of the well bottom, a first mounting plate fixedly connected to the bottom of the inner walls of both the first and second well walls, a second mounting plate fixedly connected to the inner side wall of the first well wall, equidistantly arranged brackets fixedly connected to the upper surface of the well bottom, the brackets being arranged in a large curvature arc shape, equidistantly arranged bases fixedly connected to both sides of each bracket, a positioning ring provided on the upper surface of each base, and equidistantly arranged cable sleeves fixedly connected to both sides of the second well wall.

[0006] The above-mentioned design for corner wells involves a large excavation area, impacting surrounding traffic and residents' lives. The long concrete pouring cycle increases construction time and costs. The small turning radius of cables within the corner wells makes them prone to damage and reduces their service life. By setting up a modular well bottom, first well wall, and second well wall, the corner wells can be prefabricated and quickly assembled, significantly shortening the construction cycle and reducing interference with urban traffic and residents' lives. By setting up supports, bases, and positioning rings arranged in a large curvature arc, the turning radius of the cables is increased, significantly reducing the risk of cable stress damage and extending the cable's service life.

[0007] Furthermore, slots are provided at the bottom of both the first and second well walls, and a rod is fixedly connected to the upper surface of the well bottom. The rod is slidably inserted into the first and second well walls through the slots.

[0008] The above scheme uses insert rods to restrict the first and second well walls, thereby improving the stability of the connection between the first and second well walls and the bottom of the well.

[0009] Furthermore, the first mounting plate is fixedly connected to the bottom of the well by bolts, and the second mounting plate is fixedly connected to the second well wall by bolts.

[0010] The above scheme uses bolts to fix the first mounting plate to the bottom of the well, thereby achieving the splicing and fixing of the first and second well walls to the bottom of the well. Bolts are also used to fix the second mounting plate to the second well wall, thereby achieving the splicing and fixing of the first and second well walls. This completes the splicing of the bottom of the well, the first well wall, and the second well wall, improving the overall stability of the corner well splicing.

[0011] Furthermore, both the base and the positioning ring are arc-shaped, and the positioning ring is fixedly connected to the base by bolts.

[0012] The above solution allows the arc-shaped base and positioning ring to be adapted to the cable duct, facilitating the support and positioning of the cable duct.

[0013] Furthermore, rubber gaskets are fixedly connected to the inner walls of both the base and the positioning ring, and rubber gaskets are fixedly connected to the inner wall of the cable sleeve.

[0014] Through the above solution, the rubber gasket can buffer the cable duct, absorb the vibration energy caused by seismic waves, and significantly improve the cable duct's ability to resist external impacts.

[0015] Furthermore, the joints between the bottom of the well, the first well wall, and the second well wall are filled with polyurethane foam, waterproof tape is adhered to the joints between the bottom of the well, the first well wall, and the second well wall, and waterproof coating is applied to the outer periphery of the bottom of the well, the first well wall, and the second well wall.

[0016] The above solutions improve the overall sealing and waterproofing of the corner well, effectively preventing groundwater seepage and ensuring the long-term stability of the cable operation.

[0017] Furthermore, the upper surfaces of the first and second well walls are provided with well covers.

[0018] The above solution allows the manhole cover to shield the corner manhole, protect the cables inside, and also facilitates opening and closing, making it convenient for workers to open the manhole cover and enter the corner manhole to inspect and maintain the cables.

[0019] Furthermore, the upper surfaces of both the first and second well walls are provided with limiting grooves, and the bottom surface of the well cover is fixedly connected with a limiting protrusion, which is slidably inserted into the limiting groove.

[0020] The above-mentioned design allows the limiting groove and limiting protrusion to restrict the manhole cover, preventing it from easily shifting and improving its stability.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0022] This dual-cable duct corner manhole structure, by setting up a splicable manhole bottom, first manhole wall, and second manhole wall, enables the prefabrication and rapid assembly of the corner manhole, significantly shortening the construction cycle and reducing interference with urban traffic and residents' lives. By setting up a bracket, base, and positioning ring with a large curvature arc arrangement, the cable turning radius is increased, significantly reducing the risk of cable stress damage and extending the cable service life. It solves the problems of existing corner manholes, such as large excavation area, long concrete pouring cycle, high construction time and cost, small cable turning radius, easy damage, and reduced service life. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the entire application;

[0024] Figure 2 This is a top view of part of the structure of this application;

[0025] Figure 3 This is a structural diagram of the support structure in this application;

[0026] Figure 4 This is a diagram of the second wellbore structure in this application;

[0027] Figure 5 This is a first wellbore structure diagram of this application;

[0028] Figure 6 This is a structural diagram of the manhole cover in this application.

[0029] In the picture:

[0030] 1. Bottom of well; 2. First well wall; 3. Second well wall; 4. First mounting plate; 5. Second mounting plate; 6. Slot; 7. Insert rod; 8. Bracket; 9. Base; 10. Positioning ring; 11. Cable sleeve; 12. Well cover; 13. Limiting groove; 14. Limiting protrusion. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] Please see Figure 1 , Figure 2 and Figure 3 This embodiment of a double cable pipe corner well structure includes a well bottom 1, a first well wall 2 on the upper surface of the well bottom 1, a second well wall 3 on the upper surface of the well bottom 1, a first mounting plate 4 fixedly connected to the bottom of the inner walls of both the first well wall 2 and the second well wall 3, a second mounting plate 5 fixedly connected to the inner side wall of the first well wall 2, equidistantly arranged brackets 8 fixedly connected to the upper surface of the well bottom 1, the brackets 8 being arranged in a large curvature arc shape, equidistantly arranged bases 9 fixedly connected to both sides of each bracket 8, a positioning ring 10 on the upper surface of each base 9, and equidistantly arranged cable sleeves 11 fixedly connected to both sides of the second well wall 3.

[0033] Please see Figure 3 , Figure 4 and Figure 5 The bottom of the first well wall 2 and the second well wall 3 are both provided with slots 6. The upper surface of the well bottom 1 is fixedly connected with a plug rod 7. The plug rod 7 is slidably inserted into the first well wall 2 and the second well wall 3 through the slots 6 respectively. The plug rod 7 restricts the first well wall 2 and the second well wall 3, thereby improving the stability of the splicing of the first well wall 2 and the second well wall 3 with the well bottom 1.

[0034] Please see Figure 2 , Figure 4 and Figure 5 The first mounting plate 4 is fixedly connected to the bottom of the well 1 by bolts, and the second mounting plate 5 is fixedly connected to the second well wall 3 by bolts. The first mounting plate 4 is fixedly connected to the bottom of the well by bolts, thereby realizing the splicing and fixing of the first well wall 2 and the second well wall 3 to the bottom of the well 1. The second mounting plate 5 is fixedly connected to the second well wall 3 by bolts, thereby realizing the splicing and fixing of the first well wall 2 and the second well wall 3. The splicing of the bottom of the well 1, the first well wall 2, and the second well wall 3 is completed, improving the overall stability of the corner well splicing.

[0035] Please see Figure 3 Both the base 9 and the positioning ring 10 are arc-shaped. The positioning ring 10 is fixedly connected to the base 9 by bolts. The arc-shaped base 9 and positioning ring 10 can be adapted to the cable duct, which is convenient for supporting and positioning the cable duct.

[0036] Please see Figure 1 , Figure 3 and Figure 4 Rubber gaskets are fixedly connected to the inner walls of the base 9 and the positioning ring 10, and rubber gaskets are fixedly connected to the inner wall of the cable sleeve 11. The rubber gaskets can buffer the cable pipe and absorb the vibration energy caused by seismic waves, which significantly improves the cable pipe's ability to resist external impacts.

[0037] Please see Figure 1 and Figure 2 The joints between the bottom 1, the first well wall 2, and the second well wall 3 are filled with polyurethane foam, and waterproof tape is bonded to the joints between the bottom 1, the first well wall 2, and the second well wall 3. The outer surfaces of the bottom 1, the first well wall 2, and the second well wall 3 are coated with waterproof paint, which improves the overall sealing of the corner well, enhances the overall waterproof performance of the corner well, effectively prevents groundwater infiltration, and ensures the long-term stability of the cable operation.

[0038] Please see Figure 1 and Figure 6 The upper surfaces of the first well wall 2 and the second well wall 3 are provided with well covers 12. The well covers 12 can cover the corner well and protect the cables inside the corner well. They are also easy to open and close, making it convenient for workers to open the well covers 12 to enter the corner well and inspect and maintain the cables.

[0039] Please see Figure 1 , Figure 2 and Figure 6 Limiting grooves 13 are provided on the upper surfaces of the first well wall 2 and the second well wall 3. Limiting protrusions 14 are fixedly connected to the bottom surface of the well cover 12. The limiting protrusions 14 are slidably inserted into the limiting grooves 13. The limiting grooves 13 and the limiting protrusions 14 can restrict the well cover 12, prevent the well cover 12 from easily shifting, and improve the stability of the well cover 12.

[0040] This embodiment of a double-cable duct corner well structure, by setting up a splicable well bottom 1, first well wall 2, and second well wall 3, enables the prefabrication and rapid splicing of the corner well, significantly shortening the construction cycle and reducing interference with urban traffic and residents' lives. By setting up a bracket 8, base 9, and positioning ring 10 arranged in a large curvature arc, the cable turning radius is increased, significantly reducing the risk of cable stress damage and extending the cable service life. It solves the problems of existing corner wells having large excavation areas, long concrete pouring cycles, high construction time and costs, small cable turning radii, easy damage, and reduced service life.

[0041] It should be noted that a drainage outlet is provided inside the bottom of the well 1, and an anti-backflow plug is installed inside the drainage outlet.

[0042] The working principle of the above embodiments is as follows:

[0043] When it is necessary to lay and splice corner wells, first, the bottom of the well 1 is placed into the pre-dug pit. Then, the first well wall 2 and the second well wall 3 are installed onto the insertion rod 7 of the bottom of the well 1 through the slot 6. The first well wall 2 and the second well wall 3 are fixed to the bottom of the well 1 by bolts through the first mounting plate 4. The first well wall 2 and the second well wall 3 are fixed by bolts through the second mounting plate 5. Polyurethane foam is filled into the splicing gaps of the bottom of the well 1, the first well wall 2, and the second well wall 3, and waterproof tape is applied. Finally, waterproof coating is applied to the outer perimeter of the bottom of the well 1, the first well wall 2, and the second well wall 3. The cable pipe can be inserted into the corner well through the cable sleeve 11 at one end and then inserted out through the cable sleeve 11 at the other end. The cable pipe can be placed on the base 9 arranged in a large curvature arc and the positioning ring 10 and bolts are used to position the cable pipe, which increases the bending radius of the cable, reduces the risk of cable stress damage, and extends the service life of the cable.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0045] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double-cable pipe corner well structure, comprising a well bottom (1), characterized in that: The upper surface of the well bottom (1) is provided with a first well wall (2), the upper surface of the well bottom (1) is provided with a second well wall (3), the bottom of the inner walls of the first well wall (2) and the second well wall (3) are fixedly connected with a first mounting plate (4), the inner side wall of the first well wall (2) is fixedly connected with a second mounting plate (5), the upper surface of the well bottom (1) is fixedly connected with equidistant brackets (8), the brackets (8) are arranged in a large curvature arc shape, the two sides of each bracket (8) are fixedly connected with equidistant bases (9), the upper surface of each base (9) is provided with a positioning ring (10), and the two sides of the second well wall (3) are fixedly connected with equidistant cable sleeves (11).

2. The double cable conduit corner well structure according to claim 1, characterized in that: The bottom of the first well wall (2) and the second well wall (3) are provided with slots (6), and the upper surface of the well bottom (1) is fixedly connected with a plug (7). The plug (7) is slidably inserted into the first well wall (2) and the second well wall (3) through the slots (6).

3. The double cable conduit corner well structure according to claim 1, characterized in that: The first mounting plate (4) is fixedly connected to the bottom of the well (1) by bolts, and the second mounting plate (5) is fixedly connected to the second well wall (3) by bolts.

4. The double cable conduit corner well structure according to claim 1, characterized in that: Both the base (9) and the positioning ring (10) are arc-shaped, and the positioning ring (10) is fixedly connected to the base (9) by bolts.

5. The double cable conduit corner well structure according to claim 1, characterized in that: Rubber gaskets are fixedly connected to the inner walls of the base (9) and the positioning ring (10), and rubber gaskets are fixedly connected to the inner wall of the cable sleeve (11).

6. The double cable conduit corner well structure according to claim 1, characterized in that: The joints of the bottom (1), the first well wall (2), and the second well wall (3) are filled with polyurethane foam, and waterproof tape is bonded to the joints of the bottom (1), the first well wall (2), and the second well wall (3). The outer surfaces of the bottom (1), the first well wall (2), and the second well wall (3) are coated with waterproof paint.

7. The double cable conduit corner well structure according to claim 1, characterized in that: The upper surfaces of the first well wall (2) and the second well wall (3) are provided with well covers (12).

8. The double cable conduit corner well structure according to claim 7, characterized in that: The upper surfaces of the first well wall (2) and the second well wall (3) are provided with limiting grooves (13), and the bottom surface of the well cover (12) is fixedly connected with a limiting protrusion (14), which is slidably inserted into the limiting groove (13).