Switch box foundation with reel well
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGMEN ELECTRIC POWER DESIGN INST CO LTD
- Filing Date
- 2025-08-25
- Publication Date
- 2026-07-21
AI Technical Summary
In existing power facilities, the dispersed layout of switch box foundations and cable wells on both sides results in a large footprint, making it difficult to apply in space-constrained areas such as urban roads, sidewalks, and green belts.
The switch box foundation with cable trays is adopted. The first and second cable trays are set up side by side and the switch box is directly installed above the first cable tray, forming a vertically integrated functional structure. The cable is introduced into the switch box from the first cable tray, reducing cable bending and improving the spatial connection between the cable and the equipment.
It significantly reduces the footprint, improves the flexibility and safety of cable laying, reduces mechanical stress, and enhances the reliability and maintenance efficiency of the power supply system.
Smart Images

Figure CN224531726U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power equipment technology, and in particular to a switch box foundation with a cable reel well. Background Technology
[0002] In existing power facility construction, switch box foundations are typically installed on the ground, with straight cable wells on both sides. The switch box foundations and the cable wells on both sides are arranged in a "I" or "P" shape, resulting in a long lateral extension of the overall structure. This leads to the occupation of a lot of underground and ground space, making it difficult to place in space-constrained areas such as urban roads, sidewalks, and green belts, thus limiting its application scenarios. Utility Model Content
[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a switch box foundation with a cable reel well, which enables structural integration, significantly reduces the floor space required, optimizes cable entry paths, and improves laying flexibility.
[0004] According to a first aspect of the present invention, a switch box foundation with a cable reel well includes: a cable reel unit, including a first cable reel well and a second cable reel well arranged side by side, wherein the first cable reel well and the second cable reel well are respectively provided with a space for accommodating cables;
[0005] A switch box is installed above the first cable reel well, and the internal space of the switch box is connected to the internal space of the first cable reel well so that the cable can be introduced into the switch box from the first cable reel well upward.
[0006] The switch box foundation with cable reel well according to the present invention has at least the following beneficial effects: By setting the first cable reel well and the second cable reel well side by side and installing the switch box directly above the first cable reel well, a vertically integrated functional structure is formed, avoiding the problem of excessive lateral extension caused by the dispersed arrangement of the switch box foundation and the cable reel wells on both sides in the traditional solution, and significantly reducing the overall footprint, it is especially suitable for space-constrained areas such as urban roads, sidewalks, and green belts; The internal space of the switch box is directly connected to the inner cavity of the first cable reel well, and the cable can be introduced vertically upward from the first cable reel well into the switch box without large-angle bending, effectively controlling the bending radius of the cable, reducing mechanical stress during the laying process, preventing damage to the cable insulation layer, and improving the safety and reliability of the power supply system; The first cable reel well not only serves as a cable coiling and storage function, but also as an access channel for the switch box, so that the cable terminal and the switch equipment are closely connected in space, making it convenient for maintenance personnel to complete the connection, testing and maintenance of cables and equipment in the same location, improving maintenance efficiency.
[0007] According to some embodiments of the present invention, the projection of the switch box in the direction of the first cable well is located inside the outer contour line of the first cable well.
[0008] According to some embodiments of the present invention, the switch box is located at the corner of the first cable reel well, and the switch box is flush with the edge of the first cable reel well.
[0009] According to some embodiments of the present invention, a protrusion is provided above the first cable reel well, the protrusion being higher than the highest point of the top of the second cable reel well, and the switch box is installed on the top of the first cable reel well through the protrusion.
[0010] According to some embodiments of the present invention, the cable reel unit further includes a concrete cover plate, which is disposed on the top of the second cable reel well. The area on the top of the first cable reel well where the switch box is not placed is also provided with the concrete cover plate. The concrete cover plate is used to seal the openings of the first cable reel well and the second cable reel well.
[0011] According to some embodiments of the present invention, a rubber buffer layer is provided on the top of the first cable reel well and the second cable reel well. The rubber buffer layer is provided with a connecting hole, which fixes the rubber buffer layer to the top of the first cable reel well and the second cable reel well. The concrete cover plate covers the rubber buffer layer.
[0012] According to some embodiments of the present invention, after the concrete cover plate is closed, the top of the concrete cover plate remains flush with the road surface.
[0013] According to some embodiments of the present invention, multiple concrete cover plates are provided, and the multiple concrete cover plates cover the first cable reel well and the second cable reel well.
[0014] According to some embodiments of the present invention, the sidewall of the first cable well is provided with a plurality of cable pipes, and the two sidewalls of the second cable well and the side facing away from the first cable well are also provided with cable pipes for the introduction and exit of cables.
[0015] According to some embodiments of the present invention, a protective brick wall is also constructed inside the cable reel unit. The protective brick wall is located inside the first cable reel well and the second cable reel well, and covers the outside of the cable pipe.
[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:
[0018] Figure 1 This is a schematic diagram of the switch box foundation and cable tray well according to an embodiment of the present utility model;
[0019] Figure 2 This is an embodiment of the present utility model. Figure 1 Cross-sectional view at point A in the middle;
[0020] Figure 3 This is an embodiment of the present utility model. Figure 1 Cross-sectional view at point B;
[0021] Figure 4 This is an embodiment of the present utility model. Figure 1 A cross-sectional view at point C in the middle;
[0022] Figure 5 This is a schematic diagram of the rubber buffer layer in an embodiment of the present invention.
[0023] Reference numerals: First cable reel well 100; Second cable reel well 110; Switch box 120; Concrete cover 130; Cable conduit 140; Protective brick wall 150; Protrusion 160; Connection hole 170. Detailed Implementation
[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0025] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0026] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0027] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly. Those skilled in the art can reasonably determine the specific meaning of these terms in this utility model based on the specific content of the technical solution. In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples. In the description of this specification, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0028] Reference Figures 1 to 5 The base of the switch box 120 with cable reel well includes: a cable reel unit, including a first cable reel well 100 and a second cable reel well 110 arranged side by side, the first cable reel well 100 and the second cable reel well 110 respectively having space for accommodating cables;
[0029] The switch box 120 is located above the first cable well 100. The internal space of the switch box 120 is connected to the internal space of the first cable well 100 so that the cable can be introduced into the switch box 120 from the first cable well 100.
[0030] By placing the first cable reel well 100 and the second cable reel well 110 side by side and installing the switch box 120 directly above the first cable reel well 100, a vertically integrated functional structure is formed. This avoids the problem of excessive lateral extension caused by the dispersed arrangement of the switch box 120 foundation and the cable reel wells on both sides in traditional solutions, significantly reducing the overall footprint. It is especially suitable for space-constrained areas such as urban roads, sidewalks, and green belts. The internal space of the switch box 120 is directly connected to the inner cavity of the first cable reel well 100, allowing cables to be introduced vertically upwards from the first cable reel well 100 into the switch box 120 without large-angle bends. This effectively controls the cable bending radius, reduces mechanical stress during laying, prevents damage to the cable insulation layer, and improves the safety and reliability of the power supply system. The first cable reel well 100 serves both as a cable coiling and storage function and as an access channel for the switch box 120, closely linking the cable terminals and switchgear in space. This facilitates maintenance personnel to complete cable and equipment connection, testing, and maintenance operations in the same location, improving maintenance efficiency.
[0031] The projection of the switch box 120 in the direction of the first cable well 100 is located inside the outer contour line of the first cable well 100.
[0032] When the switch box 120 is installed on top of the first cable well 100, its horizontal projection falls entirely within the outer contour of the top surface of the first cable well 100. This means that the bottom surface area of the switch box 120 is less than or equal to the top surface area of the first cable well 100, and the switch box 120 is centrally or eccentrically positioned on the first cable well 100, but does not extend beyond its edge. In actual operation, the cable passes upwards from inside the first cable well 100 through the well opening and directly enters the switch box 120 to achieve power connection. Since the switch box 120 is entirely within the structural boundary of the first cable well 100, the entire upper load (including the self-weight of the switch box 120, the equipment weight, and external loads) is evenly transferred to the concrete structure of the first cable well 100 through the bottom contact surface, and is borne by the entire structure. At the same time, the second cable well 110, as the receiving space for the cables on the opposite side, is set up side by side with the first cable well 100, together forming a stable foundation support system. This arrangement ensures structural coordination between the switch box 120 and the cable tray well, avoiding stress concentration or foundation instability caused by cantilever or extension.
[0033] The switch box 120 is entirely within the outline of the first cable reel well 100, effectively supporting its center of gravity and avoiding the risk of overturning or localized stress concentration that may occur with cantilever structures. The load is uniformly transferred to the foundation well body through full-area contact at the bottom, improving the overall structural stability and resistance to external disturbances (such as vehicle traffic and ground settlement). Since the switch box 120 does not extend beyond the edge of the first cable reel well 100, a continuous sealing structure (such as waterproof strips or sealing mortar) can be installed at the interface between the two, forming a complete seepage barrier. This effectively prevents rainwater and groundwater from seeping into the switch box 120 along the wellhead edge, improving the dryness and safety of the equipment operating environment.
[0034] The switch box 120 is located at a corner of the first cable well 100, and the switch box 120 is flush with the edge of the first cable well 100. In this structure, the switch box 120 is not centrally installed on the top of the first cable well 100, but is arranged in a corner area of its top surface, that is, near the intersection of two adjacent side walls of the first cable well 100. At the same time, the outer edge of the switch box 120 is aligned (flush) with the corresponding edge of the first cable well 100 and does not protrude outward.
[0035] In actual operation, the cable is led upwards from inside the first cable reel well 100, passes through the well opening, and enters the switch box 120 located at the corner to complete the electrical connection. Since the switch box 120 only occupies a partial area at the top of the first cable reel well 100, the remaining top space remains open or is used to install a cover plate. The second cable reel well 110 is used for the introduction and coiling of cables on the opposite side. This layout allows the switch box 120 to meet equipment installation requirements while leaving sufficient operating space at the top of the first cable reel well 100, facilitating cable laying, joint fabrication during construction, and maintenance work during later operation and maintenance.
[0036] By placing the switch box 120 in a corner position, it avoids occupying the central area at the top of the first cable well 100, leaving a larger open area. This facilitates operations such as cable bending, coiling, and jointing by construction personnel inside the well, significantly improving installation and maintenance efficiency and increasing the space utilization rate of the first cable well 100 and the second cable well 110.
[0037] A protrusion 160 is provided above the first cable well 100. The protrusion 160 is higher than the highest point of the top of the second cable well 110. The switch box 120 is installed on the top of the first cable well 100 through the protrusion 160.
[0038] In this structure, the top of the first cable well 100 is provided with an upwardly protruding protrusion 160 (also referred to as a "support platform" or "lifting platform"), the height of which is designed to be higher than the highest position of the top of the second cable well 110. The switch box 120 is not directly installed on the main well body plane of the first cable well 100, but is fixedly installed on the protrusion 160.
[0039] In actual operation, the cable is led upwards from inside the first cable tray 100, passes through the channel or opening in the center of the protrusion 160, and enters the switch box 120 installed above it to complete the power connection. The second cable tray 110 is used for the introduction and coiling of cables for the opposite line, and its top is usually covered with a cover plate. Due to the lifting effect of the protrusion 160, the overall installation height of the switch box 120 is significantly higher than that of the second cable tray 110 area, forming an asymmetrical but functionally coordinated three-dimensional layout. This structure can be constructed by prefabrication or on-site casting to form the protrusion 160, and the switch box 120 housing and internal equipment are installed on it.
[0040] The protrusion 160 raises the switch box 120 to a position higher than the top of the second cable well 110, keeping it away from low-lying areas and areas prone to water accumulation. In the event of heavy rain, flooding, or rising groundwater levels, this effectively prevents water from backflowing into the switch box 120, significantly improving the safety and reliability of equipment operation. By setting up the protrusion 160, a "partial elevation" is achieved, making rational use of vertical space without increasing the overall floor area, creating high and low zones: the lower area is used for cable winding and joint protection (second cable well 110), and the higher area is used for electrical equipment installation (switch box 120). The functional zoning is clear, and the layout is compact and reasonable.
[0041] The cable reel unit also includes a concrete cover plate 130, which is installed on the top of the second cable reel well 110. The area on the top of the first cable reel well 100 where the switch box 120 is not placed is also provided with a concrete cover plate 130. The concrete cover plate 130 is used to seal the openings of the first cable reel well 100 and the second cable reel well 110.
[0042] In this structure, the cable reel unit consists of a first cable reel well 100 and a second cable reel well 110 arranged side by side. The switch box 120 is only installed in a partial area (such as a corner) on the top of the first cable reel well 100, resulting in unoccupied remaining space on the top of the first cable reel well 100. To achieve complete enclosure and safety protection for the entire cable reel unit, this solution provides concrete (“concrete”) covers on the entire top of the second cable reel well 110 and the remaining areas on the top of the first cable reel well 100 except for the area where the switch box 120 is installed. When it is necessary to inspect the cable or perform maintenance work, the concrete cover 130 of the corresponding area can be removed to achieve partial opening without affecting the normal operation of the switch box 120, thus improving the flexibility of operation and maintenance.
[0043] The concrete cover 130 covers all the top areas of the manhole not occupied by the switch box 120, effectively preventing people from falling, foreign objects from entering, animals from intruding, or rainwater from seeping into the cable tray manhole, ensuring the safe operation of the underground cable system and environmental cleanliness. After installation, the cover is flush with the surrounding road surface, eliminating height differences, potholes, or protruding structures, preventing pedestrians from tripping, vehicles from bumping, or water accumulation, significantly improving the safety and comfort of public areas, and meeting the human-centered design requirements of municipal facilities.
[0044] A rubber buffer layer is provided on the top of the first cable well 100 and the second cable well 110. The rubber buffer layer is provided with a connecting hole 170. The connecting hole 170 fixes the rubber buffer layer on the top of the first cable well 100 and the second cable well 110. A concrete cover plate 130 covers the rubber buffer layer.
[0045] The top surfaces of the first cable manhole 100 and the second cable manhole 110 are provided with a rubber buffer layer, which has multiple connection holes 170. During installation, fasteners (such as bolts, expansion screws, etc.) are passed through the connection holes 170 to firmly fix the rubber buffer layer to the concrete structure at the top of the manhole. Subsequently, a concrete cover plate (concrete cover plate 130) is placed entirely or in sections over the rubber buffer layer to form a complete top closed structure.
[0046] In actual operation, when external loads (such as pedestrians stepping on it or vehicles running over it) are applied to the concrete cover slab 130, the rubber buffer layer, acting as an intermediate elastic layer, effectively absorbs impact energy, alleviates stress concentration, and forms a flexible connection between the cover slab and the well body. Simultaneously, the rubber material possesses excellent compression resilience and sealing properties, maintaining structural stability and waterproofing during long-term use. This rubber buffer layer not only provides shock absorption but also enhances the fit between the cover slab and the foundation, preventing problems such as cover slab cracking, wellhead damage, or abnormal noise caused by rigid contact.
[0047] As an elastic intermediate layer, the rubber buffer layer effectively absorbs vibrations and impact loads from vehicle traffic or external impacts, preventing direct hard contact between the concrete cover plate 130 and the top of the manhole, reducing the risk of cracking, chipping, or breakage of the concrete cover plate, and extending the service life of the overall structure. The rubber layer also has excellent pressure dispersion capabilities, evenly transferring localized concentrated loads to the top of the manhole, reducing fatigue damage to the concrete structure caused by stress concentration, and improving the long-term bearing capacity and structural reliability of the foundation.
[0048] After the concrete cover plate 130 is installed, its top is flush with the road surface. During construction and installation, precise control of the manhole height, cover plate thickness, and backfill elevation ensures that the top surface of the cover plate is level with the surrounding road or ground surface, achieving "flush." In actual operation, pedestrians, non-motorized vehicles, or vehicles will not experience bumps, vibrations, or tripping risks due to ground elevation differences when passing through this area. Rainwater can also flow smoothly to the drainage system, preventing water accumulation around the cover plate. This flush design is typically achieved by combining a rubber buffer layer, sealing structure, and precision control of prefabricated components, ensuring flatness and stability during long-term use. The flush top surface of the concrete cover plate 130 with the road surface avoids the "protrusion" or "recess" problems common in traditional inspection manholes or cable manholes, effectively preventing safety accidents such as pedestrians tripping, bicycles or electric vehicles losing control, and vehicle tire damage, significantly improving the safety of public areas.
[0049] Multiple concrete cover plates 130 are provided, covering the first cable reel 100 and the second cable reel 110. Instead of a single cover, multiple separate concrete cover plates are used, each covering a different area of the two cable reel manholes. For example, one or more cover plate units can be installed on the top of the second cable reel manhole 110; the remaining space on the top of the first cable reel manhole 100, excluding the area where the switch box 120 is installed, is also enclosed by one or more independent concrete cover plates 130. This design of multiple separate cover plates allows maintenance personnel to open specific areas as needed, avoiding large-scale excavation or complete dismantling, significantly reducing maintenance workload, shortening power outage time, and improving maintenance efficiency and power supply reliability. The small size and light weight of each cover plate facilitate manual handling and installation, eliminating the need for large lifting equipment. This makes it particularly suitable for operations in narrow spaces or areas with dense underground pipelines, reducing construction difficulty and safety risks.
[0050] In actual operation, when maintenance is required on a cable channel or joint area, maintenance personnel only need to open the single cover corresponding to the target area to enter that part of the well for work, without having to dismantle the entire top structure or move the switch box 120. After maintenance is completed, the cover is reset and secured to restore the original state.
[0051] The first cable well 100 has several cable conduits 140 on its side walls, and the second cable well 110 has cable conduits 140 on both side walls and the side facing away from the first cable well 100, for cable entry and exit. The cable conduits 140 on the side walls of the first cable well 100 are mainly used to introduce the main power supply cable or load-side cable into the well. Since the switch box 120 is directly installed above the first cable well 100 and its internal space is interconnected, the introduced cable can be coiled, pre-lengthened, or spliced inside the well before vertically upward into the switch box 120 to complete the electrical connection. The second cable well 110 has cable conduits 140 on both side walls (e.g., left and right) and the side facing away from the first cable well 100 (i.e., the side away from the switch box 120 foundation). This multi-directional conduit structure supports cable entry into the second cable well 110 from different directions and is suitable for complex power distribution scenarios such as T-junction branches, ring network power supply, and dual-circuit backup. After entering the second cable tray well 110, cables can be stored, transferred, or connected to other lines, enabling flexible power system networking. The second cable tray well 110 has cable conduits 140 on both side walls and the opposite side, forming a "three-way outgoing" capability. This supports the introduction or exit of cables from multiple directions, suitable for various power distribution modes such as ring main unit connections, dual power supply switching, and branch power supply, significantly enhancing the adaptability of the switch box 120 foundation to complex power grid structures. The rationally distributed cable conduits 140 allow cables to enter the target well body via the shortest path and with the smallest bending radius, avoiding long-distance detours or excessive bending, effectively controlling the minimum bending radius of the cable, preventing insulation damage, and improving laying quality and long-term operational safety.
[0052] A protective brick wall 150 is also constructed within the cable reel unit. The protective brick wall 150 is located inside the first cable reel well 100 and the second cable reel well 110, and covers the outside of the cable conduit 140. In the switch box 120 foundation with cable reel wells of the present invention, a protective brick wall 150 is constructed inside the first cable reel well 100 and the second cable reel well 110. This brick wall is located within the internal space of the well body, adjacent to the well wall or surrounding key areas, and its position is designed to cover the outside of the cable conduit 140, that is, the cable conduit 140 is located between the protective brick wall 150 and the well wall, or is partially covered by the brick wall. In actual operation, the cable is introduced into the cable reel well from the outside through the pre-embedded cable conduit 140. After the cable exits the conduit and enters the well cavity, it needs to be bent, coiled to a reserved length, or have a joint made inside the well. At this time, the protective brick wall 150 plays a role in physical isolation and positioning guidance: on the one hand, it prevents external construction backfilling, personnel trampling or heavy objects from directly affecting the cable pipe 140 and the cable outlet section; on the other hand, the brick wall forms a fixed barrier, which can be used to support the cable bracket or guide the cable route to ensure that the cable bending radius meets the specifications.
[0053] A protective brick wall 150 covers the outside of the cable conduit 140, forming a rigid barrier to prevent heavy machinery or sharp objects from directly impacting the outlet of the cable conduit 140 during backfilling, road compaction, or subsequent construction. This prevents the conduit from cracking, deforming, or shifting, ensuring the integrity of the cable channel. When the cable exits the conduit into the manhole, stress concentration can easily occur at the conduit opening due to uneven stress. The protective brick wall 150 reinforces and supports the area surrounding the cable conduit 140, reducing the risk of loosening or cracking at the conduit opening and improving the long-term sealing and structural reliability of the interface.
[0054] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A switch box foundation with a cable reel well, characterized in that, include: The cable reel unit includes a first cable reel well and a second cable reel well arranged side by side, and the first cable reel well and the second cable reel well are respectively provided with space for accommodating cables; A switch box is installed above the first cable reel well, and the internal space of the switch box is connected to the internal space of the first cable reel well so that the cable can be introduced into the switch box from the first cable reel well upward.
2. The switch box foundation with cable reel well according to claim 1, characterized in that, The projection of the switch box in the direction of the first cable well is located inside the outer contour line of the first cable well.
3. The switch box foundation with cable reel well according to claim 1, characterized in that, The switch box is located at the corner of the first cable reel well, and the switch box is flush with the edge of the first cable reel well.
4. The switch box foundation with cable reel well according to claim 1, characterized in that, A protrusion is provided above the first cable reel well, and the protrusion is higher than the highest point of the top of the second cable reel well. The switch box is installed on the top of the first cable reel well through the protrusion.
5. The switch box foundation with cable reel well according to claim 1, characterized in that, The cable reel unit also includes a concrete cover plate, which is installed on the top of the second cable reel well. The area on the top of the first cable reel well where the switch box is not placed is also equipped with the concrete cover plate. The concrete cover plate is used to seal the openings of the first cable reel well and the second cable reel well.
6. The switch box foundation with cable reel well according to claim 5, characterized in that, A rubber buffer layer is provided on the top of the first cable reel well and the second cable reel well. The rubber buffer layer is provided with connecting holes, which fix the rubber buffer layer to the top of the first cable reel well and the second cable reel well. The concrete cover plate covers the rubber buffer layer.
7. The switch box foundation with cable reel well according to claim 5, characterized in that, After the concrete cover plate is in place, the top of the concrete cover plate remains flush with the road surface.
8. The switch box foundation with cable reel well according to claim 5, characterized in that, Multiple concrete cover plates are provided, and the multiple concrete cover plates cover the first cable reel well and the second cable reel well.
9. The switch box foundation with cable reel well according to claim 1, characterized in that, The first cable well has several cable pipes installed on its sidewalls, and the second cable well has cable pipes installed on its two sidewalls and the side facing away from the first cable well, for the introduction and exit of cables.
10. The switch box foundation with cable reel well according to claim 9, characterized in that, The cable reel unit is also equipped with a protective brick wall, which is located inside the first cable reel well and the second cable reel well, and covers the outside of the cable pipe.