Cable trench and charging station

Abstract

The utility model discloses a cable trench and a charging station, and relates to the technical field of municipal power facility construction, the cable trench comprises a trench and a cover plate, the trench is provided with a top plate, and the top plate is provided with at least one opening; the cover plates cover the opening, the multiple cover plates are arranged in the length direction of the opening, and the cover plates are spliced with the top plate. According to the technical scheme, the top plate is arranged on one side of the groove, at least one opening is formed in the top plate, and the cover plate covers the opening, so that the cover plate and the top plate are spliced; by opening the cover plate, a cable can be laid in the groove through the opening. Under the condition that the width of the groove is not changed, the width of the opening can be reduced by additionally arranging the top plate, and then the width of the cover plate can be reduced; in a scene with limited ground space, the area of the cover plate exposed on the ground is reduced, the influence of the cover plate on ground facility construction is reduced, and the condition that the cover plate is easy to deform is improved.

Description

Technical Field

[0001] The present application relates to the technical field of municipal power facility construction, and in particular to the provision of a cable trench and a charging station. Background Art

[0002] Cable trenches are essential infrastructure for the safe and efficient routing of cables in power systems. They require sufficient space to accommodate a sufficient number of cables while facilitating the laying of core cables and the replacement of faulty cables. Cable trenches are typically constructed of concrete or brick, with a cover plate at the top. The cover plate can be flush with the ground for easy opening, or slightly below ground level, coated with a layer of cement to prevent unevenness and rainwater from entering the trench. Depending on the number of cables installed, cables can be laid in a single layer at the bottom of the trench or in layers on supports within the trench. Currently, due to the wide width of cable trenches, in scenarios with limited ground space, the exposed area of ​​the trench cover plate is relatively large, which can affect the construction of ground facilities. Panels with a large exposed area are also more susceptible to deformation. Utility Model Content

[0003] The main purpose of this application is to propose a cable trench and charging station, aiming to solve the problem that the exposed surface of the cable trench cover is large, which easily affects the construction of ground facilities and is prone to deformation.

[0004] To achieve the above objectives, the cable trench proposed in this application includes:

[0005] A groove, wherein the groove is provided with a top plate, and the top plate is provided with at least one opening;

[0006] A plurality of cover plates are provided on the openings; the cover plates are spliced ​​with the top plate.

[0007] In one embodiment, the width of the opening is less than or equal to 1 / 2 of the width of the top plate; and / or,

[0008] A supporting structure is provided at the position of the opening, and the supporting structure is used to support the cover plate.

[0009] In one embodiment, the supporting structure includes a first limiting groove and a second limiting groove, the first limiting groove and the second limiting groove are respectively arranged on both sides of the opening, and the opposite sides of the cover plate are respectively inserted into the first limiting groove and the second limiting groove.

[0010] In one embodiment, the groove includes a bottom plate, a first side plate, a second side plate and the top plate, the bottom plate is connected to the first side plate and the second side plate on both sides along the width direction, and the top plate is located above the bottom plate and connected to the first side plate.

[0011] In one embodiment, the supporting structure includes a supporting section, the supporting section is connected to the top plate, the supporting section extends toward the second side plate, and the top surface of the supporting section intersects with the side surface of the top plate to form the first limiting groove; and / or,

[0012] The supporting structure further includes an abutting section, which is provided on the top surface of the second side plate. The side surface of the abutting section facing the opening and the top surface of the second side plate form the second limiting groove.

[0013] In one embodiment, the first limiting groove is provided at one end of the top plate facing the second side plate, the second limiting groove is provided at the second side plate, and both sides of the cover plate are respectively engaged with the first limiting groove and the second limiting groove.

[0014] In one embodiment, the cable trench further includes a plurality of cable supports, which are spaced apart along the length direction of the cable trench, and one end of the cable support is connected to the first side panel or the second side panel.

[0015] In one embodiment, a cable groove is provided on a side of the cable bracket facing the top plate; and / or,

[0016] The distance between adjacent cable supports is 500 mm to 1000 mm; and / or,

[0017] The cable supports are arranged along the length direction of the cable trench to form a layer of cable support groups, and at least two layers of spaced-apart cable support groups are provided along the height direction of the trench.

[0018] In one embodiment, the groove is provided with a plurality of openings, the plurality of openings are spaced apart along the length direction of the groove, and the number of the cover plates corresponds to the number of the openings; and / or,

[0019] The groove is provided with a plurality of water collecting structures, and the sidewall slope of the water collecting structures along the length direction of the groove is at least 0.5%; and / or,

[0020] The cover plate is surrounded by a metal ring; and / or,

[0021] The groove and the cover plate are both cast in concrete; and / or,

[0022] The top surface of the cover plate or the top plate should be provided with a plurality of cable signboards, and the distance between adjacent cable signboards should be in the range of 5m to 15m.

[0023] The present application also proposes a charging station, comprising the cable trench as described above.

[0024] The technical solution of this application involves installing a top plate on one side of the trench, with at least one opening defined in the top plate. A cover plate is then placed over the opening, allowing the top plate and the cover plate to be joined. By opening the cover plate, cables can be laid through the opening in the trench. While the trench width remains constant, the addition of the top plate reduces the width of the opening, and thus the width of the cover plate. In scenarios where ground space is limited, this reduces the area of ​​the cover plate exposed to the ground, minimizing its impact on ground infrastructure and improving the cover plate's tendency to deform. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0026] Figure 1 A schematic structural diagram of an embodiment of a cable trench provided in this application;

[0027] Figure 2 A schematic cross-sectional view of an embodiment of a cable trench provided in the present application, wherein the cable trench has an opening;

[0028] Figure 3 This is a schematic cross-sectional view of an embodiment of a cable trench provided in the present application without an opening;

[0029] Figure 4 A schematic diagram of the internal structure of a cover plate of a cable trench according to an embodiment of the present application;

[0030] Figure 5 A schematic diagram of the surface structure of a cable trench according to an embodiment of the present application;

[0031] Figure 6 A schematic cross-sectional view of an embodiment of a cable trench provided in this application;

[0032] Figure 7 This is a schematic cross-sectional view of an embodiment of a charging station provided in this application.

[0033] Description of Figure Numbers:

[0034] 1. Groove; 11. Opening; 12. Top plate; 13. Bottom plate; 14. First side plate; 15. Second side plate; 2. Cover plate; 21. Metal ring; 22. Handle; 3. Support structure; 31. First limiting groove; 32. Second limiting groove; 33. Support section; 34. Abutment section; 5. Cable bracket; 51. Cable groove; 6. Water collection structure; 7. Reinforced concrete column; 8. Reinforcement structure; 9. Parking space; 10. Charging pile.

[0035] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0036] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0037] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0038] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0039] The present application provides a cable trench.

[0040] See also Figures 1 to 6In one embodiment of the present application, the cable trench includes a trench 1 and at least one cover plate 2. The trench 1 is provided with a top plate 12, and the top plate 12 is provided with at least one opening 11; the cover plate 2 is covered on the opening 11; and the cover plate 2 and the top plate 12 are spliced. By providing a top plate 12 on one side of the trench 1, and providing at least one opening 11 on the top plate 12, and using the cover plate 2 to cover the opening 11, the cover plate 2 and the top plate 12 are spliced; by opening the cover plate 2, the cable can be laid in the trench 1 through the opening 11. When the width of the trench 1 remains unchanged, by adding the top plate 12, the width of the opening 11 can be reduced, and then the width of the cover plate 2 can be reduced; in scenarios where ground space is limited, the area of ​​the cover plate 2 exposed to the ground is reduced, the impact of the cover plate 2 on the construction of ground facilities is reduced, and the situation where the cover plate 2 is easily deformed is improved.

[0041] In one embodiment, the cable trench may further include multiple cover plates 2, which are arranged along the length of the opening 11. The multiple cover plates 2 are spliced ​​with the top plate 12 to form a flat surface. This ensures that the top of the cable trench is continuous and flat, making it convenient for people to walk and work on it, and also helps to keep the interior of the cable trench clean and tidy.

[0042] In one embodiment, the width of opening 11 is less than or equal to 1 / 2 the width of top plate 12. By varying the width of opening 11, the width or length of cover plate 2, and thus the area of ​​cover plate 2, can be varied. This allows the top plate 12 to enhance the stability of trench 1 while preserving cover plate 2 and opening 11 for cable routing. Existing cable trenches utilize conventional cover plates 2, typically measuring 1670mm*300mm or 2150mm*300mm, which results in a relatively large exposed area. If the width of the opening 11 is less than or equal to 1 / 2 of the width of the top plate 12, and the length of the cover plate 2 is equal to the width of the opening 11, multiple cover plates 2 are spliced ​​along the length direction of the opening 11, which can reduce the splicing area of ​​the multiple cover plates 2, and the opening 11 is covered with multiple cover plates 2, which can reduce the area and volume of a single cover plate 2, and facilitate the transportation of the cover plates 2; if the length of the original cover plate 2 structure is 1670mm, the width of the top plate 12 can be controlled between 800mm and 1000mm, so that the width of the opening 11 can be controlled between 870mm and 670mm. If the length of the original cover plate 2 structure is 2150 mm, the width of the top plate 12 can be controlled between 1450 mm and 1100 mm, so that the width of the opening 11 can be controlled between 700 mm and 1050 mm; wherein, the length of the cover plate 2 corresponds to the width of the opening 11, and the width of the cover plate 2 can be set according to demand, for example, controlled between 300 mm and 500 mm; specifically, the width of the cover plate 2 can be 700 mm*415 mm.

[0043] In addition, when the cable trench is applied to an electric vehicle charging station in a downtown area with a compact structure and a large number of parking spaces 9, especially when two rows of parking spaces 9 are adjacent and a charging pile 10 needs to be built in the middle of the two rows of parking spaces 9, a cable trench needs to be built and low-voltage cables need to be laid to the charging pile 10. If a traditional cover plate 2 is used, the width of the traditional cover plate 2 is relatively large, which may cause the ground in the parking space 9 to be covered by the cover plate 2, resulting in the inability to install a car stop; and since the parking space 9 needs to bear the weight of the vehicle and the driving friction, if the area of the cover plate 2 is large, the force borne by the cover plate 2 is large; the cover plate 2 is prone to deformation under long-term heavy pressure, which may cause the ground to be uneven. Therefore, by adding the top plate 12 to reduce the area of the cover plate 2, the need for dense cable laying of the charging pile 10 can be met, and the ground is avoided from being affected by facility construction (for example, the installation of a car stop is avoided).

[0044] In an embodiment, the position of the opening 11 is provided with a supporting structure 3 for supporting the cover plate 2, and the top surface of the top plate 12 is flush with the top surface of the cover plate 2. The main function of the supporting structure 3 is to support the cover plate 2, so that the cover plate 2 can stably cover the opening 11 of the trench 1, and at the same time, it is convenient for the operator to quickly remove the cover plate 2 to realize cable laying, maintenance and replacement. In addition, by making the top surface of the top plate 12 flush with the top surface of the cover plate 2, the flatness of the ground is improved, and the inconvenience or safety hazards caused by the height difference between the cover plate 2 and the ground are avoided.

[0045] In an embodiment, the supporting structure 3 includes a first limiting groove 31 and a second limiting groove 32, and the first limiting groove 31 and the second limiting groove 32 are respectively arranged on both sides of the opening 11, and the opposite sides of the cover plate 2 are respectively clamped into the first limiting groove 31 and the second limiting groove 32. The opposite sides of the cover plate 2 are clamped into the first limiting groove 31 and the second limiting groove 32, which ensures that the cover plate 2 is fixed at the opening 11 and prevents the cover plate 2 from shifting or sliding. Through the fixing effect of the first limiting groove 31 and the second limiting groove 32, the stability of the cover plate 2 is enhanced, and the cover plate 2 can remain stable even when the vehicle is driving or the pedestrian is passing by.

[0046] In one embodiment, the trench 1 includes a bottom plate 13, a first side plate 14, a second side plate 15, and a top plate 12. The bottom plate 13 is connected to the first and second side plates 14, 15, respectively, along its width. The top plate 12 is located above the bottom plate 13 and connected to the first side plate 14. The trench 1, consisting of the bottom plate 13, the first and second side plates 14, 15, and the top plate 12, forms a closed or semi-enclosed space for accommodating cables. The bottom plate 13 serves as the foundation of the trench 1 and is connected to the first and second side plates 14, 15, along its width. The first and second side plates 14, 15 are perpendicular to the bottom plate 13, forming the side walls of the trench 1 and protecting the cables within from external factors. The top plate 12, located above the bottom plate 13 and connected to the first side plate 14, covers a portion of the upper portion of the trench 1, reducing the width of the opening 11, thereby improving the overall stability of the trench 1 and reducing the area of ​​the cover plate 2 exposed to the ground.

[0047] In one embodiment, a first retaining groove 31 is provided on one end of the top plate 12 facing the second side plate 15, and a second retaining groove 32 is provided on the second side plate 15. The two sides of the cover plate 2 are respectively engaged with the first retaining groove 31 and the second retaining groove 32. The first retaining groove 31 and the second retaining groove 32 are located on the top plate 12 and the second side plate 15, respectively, to ensure that the cover plate 2 can be accurately positioned and fixed at the opening 11 of the cable trench, and to facilitate installation and removal, facilitating maintenance and repair of the cable trench.

[0048] In one embodiment, the support structure 3 includes a support segment 33 connected to the top plate 12 and extending toward the second side plate 15. The top surface of the support segment 33 intersects with the side surface of the top plate 12 to form a first retaining groove 31. The top surface of the support segment 33 intersects with the side surface of the top plate 12 to form the first retaining groove 31. The first retaining groove 31 secures the cover plate 2, preventing it from moving along the width of the groove 1. It also has the advantage of a simple structure. The design of the support segment 33 facilitates construction and installation, reducing complexity and cost during the construction process.

[0049] In one embodiment, the support structure 3 further includes an abutment section 34 disposed on the top surface of the second side panel 15. The side of the abutment section 34 facing the opening 11 forms a second retaining groove 32 with the top surface of the second side panel 15. The abutment section 34, disposed on the top surface of the second side panel 15, abuts against the side of the cover panel 2 facing away from the top panel 12, providing a retaining function for the cover panel 2. By utilizing the first retaining groove 31 and the second retaining groove 32, the cover panel 2 is securely fixed to the groove 1. The addition of the abutment section 34 facilitates construction and installation, reducing complexity and cost during the construction process.

[0050] In an embodiment, the cable trench further comprises a plurality of cable supports 5, which are arranged along the length direction of the cable trench and connected to the first side plate 14 or the second side plate 15 at one end. The cable supports 5 provide support for the laid cables, allowing the cables to be elevated, which facilitates the inspection and maintenance of the cables by the staff without the need to move a large number of cables, avoids the compression of the lower cables by the upper cables, and affects the transmission performance. The elevated cables provide more flexibility, which facilitates the adjustment of the position and layout of the cables according to the needs, helps to quickly identify and distinguish different types of cables, and improves the work efficiency. At the same time, it is beneficial to the heat dissipation of the cables, avoiding the influence of overheating on the performance or shortening the service life of the cables.

[0051] In an embodiment, the side of the cable support 5 facing the top plate 12 is provided with a cable groove 51. The cable groove 51 provides a fixed position for the cables, preventing the cables from sliding on the cable support 5, and helping to maintain the neat arrangement and organization of the cables. The cable groove 51 can reduce the contact between the cables and reduce the risk of electromagnetic interference. The cable groove 51 can be designed according to different types of cables to accommodate cables of different sizes and shapes.

[0052] In an embodiment, the distance between adjacent cable supports 5 is 500mm to 1000mm. When the distance between the cable supports 5 is set to 1000mm, it is suitable for light-weight cables or a small number of cables to save space and materials. When the distance between the cable supports 5 is set to 500mm, it is suitable for heavy-weight cables or a large number of cables to ensure that the cables have enough support and avoid sagging or mutual interference. Specifically, the distance between the cable supports 5 can be set to 800mm, which can provide sufficient support for the cables while saving space and materials.

[0053] In an embodiment, the cable supports 5 are arranged along the length direction of the cable trench to form a group of cable supports 5, and at least two groups of cable supports 5 are arranged at intervals in the height direction of the trench 1. The cable supports 5 are arranged along the length direction of the trench 1 to form a group of cable supports 5, which helps to lay the cables neatly along the length direction of the trench 1. In the height direction of the trench 1, at least two groups of cable supports 5 are arranged at intervals, that is, the cables can be arranged in layers by using different groups of cable supports 5, and a certain interval is maintained between each layer of cables, which can reduce the mutual interference between the cables and provide sufficient space for the maintenance and replacement of the cables, as well as ensure good heat dissipation effect and prevent overheating of the cables.

[0054] In one embodiment, the trench 1 is provided with a plurality of openings 11, which are spaced apart along the length of the trench 1. The number of cover plates 2 corresponds to the number of openings 11. The trench 1 is provided with a plurality of openings 11, which can serve as passages for cable entry and exit, ventilation, and maintenance. These openings 11 are spaced apart along the length of the trench 1, facilitating cable routing and maintenance while also enhancing the structural strength of the trench 1. Specifically, the openings 11 can be evenly spaced along the length of the trench 1.

[0055] In one embodiment, a plurality of water-collecting structures 6 are provided in the groove 1, and the side wall slope of the water-collecting structures 6 along the length direction of the groove 1 is at least 0.5%. A plurality of water-collecting structures 6 are provided on the bottom wall of the groove 1 along the length direction, and these water-collecting structures 6 are used to collect the accumulated water in the groove 1. The side wall slope of the water-collecting structure 6 along the length direction of the groove 1 is at least 0.5%, that is, for every 100 meters of the length of the groove 1, the height difference between the highest point and the lowest point of the inclined side wall is at least 0.5 meters. Such a slope helps water flow to the water-collecting structure 6 and prevents water accumulation. The slope of 0.5% is the minimum slope to ensure that water can flow naturally to the water-collecting structure 6.

[0056] In one embodiment, the water collection structure 6 is connected to the pipe body, the pipe body is connected to the drainage channel, and the pipe body is filled with coarse sand. The coarse sand acts as a filter in the pipe, which can prevent larger debris or particles from entering the pipe body and reduce the risk of pipe blockage.

[0057] In one embodiment, a metal ring 21 surrounds the cover plate 2. The metal ring 21 protects the edges of the cover plate 2 from damage due to impact or abrasion. It also improves the seal between the cover plate 2 and the edge of the groove 1, preventing debris from entering the groove 1. The metal ring 21 can be made of a corrosion-resistant metal material, such as stainless steel or galvanized steel, to accommodate harsh environmental conditions.

[0058] In one embodiment, the trench 1 and cover plate 2 are both cast with concrete. Concrete has high compressive strength, making it suitable for withstanding heavy loads and objects. Concrete is generally less expensive than other materials, and as a non-combustible material, it has excellent fire resistance. Furthermore, the concrete-cast trench 1 and cover plate 2 can better integrate with the ground.

[0059] In one embodiment, a steel structure 8 is arranged inside the bottom plate 13, the first side plate 14, the second side plate 15, the top plate 12 and the cover plate 2 of the trench 1, and a reinforced concrete column 7 is provided every 3 meters in the trench 1. Arranging steel bars inside the bottom plate 13, the first side plate 14, the second side plate 15, the top plate 12 and the cover plate 2 of the trench 1 can significantly improve the tensile strength of the concrete and the stability of the overall structure. Providing a reinforced concrete column every 3 meters can provide additional support for the trench 1, increasing its load-bearing capacity and bending resistance. The uniform distribution of steel bars helps ensure that the concrete can withstand forces in all directions and reduce the risk of cracks and fractures. Reinforced concrete structures have good seismic resistance and can maintain structural integrity during natural disasters such as earthquakes.

[0060] In one embodiment, the top surface of the cover plate 2 or the top plate 12 is provided with several cable signboards, with the distance between adjacent cable signboards ranging from 5 to 15 meters. Cable signboards clearly indicate the type, purpose, and route of the cable, facilitating quick identification and management by maintenance personnel. The signboards also serve as safety warnings, reminding workers to be aware of the presence of cables during maintenance or construction to avoid accidental damage. The distance between cable signboards is set to 5 to 15 meters, and this range can be adjusted based on actual cable density and maintenance needs. Shorter distances provide more frequent identification, while longer distances reduce the number of signboards and lower costs.

[0061] In one embodiment, a handle 22 is provided on the top of the cover plate 2 to facilitate the user to grasp and separate the cover plate 2 from the groove 1 .

[0062] In one embodiment, the backfill material on the cable trench side is made of stone powder and compacted in layers. Stone powder is a material with fine and uniform particles, which can provide good stability and reduce ground settlement after backfilling. Layered compaction can reduce the voids in the material, improve the density and bearing capacity of the backfill soil, and layered compaction can ensure that the stone powder material reaches a higher density, thereby providing uniform support force. Stone powder materials usually have good corrosion resistance, can resist chemical erosion, and extend the service life of the cable trench.

[0063] The semi-open cable trench occupies less road space, and vehicles will not press on the power pipeline corridor formed by the cable trench when parked, making the operation of power equipment safer and more reliable. At the same time, it has no effect on the installation of parking gear in parking space 9, and the internal space of trench 1 is large, which can meet the conditions for laying large-scale low-voltage cables.

[0064] The technical solution of this application is to provide an opening 11 on one side of the trench 1, and also provide a top plate 12 on the side of the trench 1 provided with the opening 11. A cover plate 2 is then placed on the opening 11, so that the cover plate 2 and the top plate 12 are spliced ​​together. By opening the cover plate 2, cables can be laid in the trench 1 through the opening 11. By adding the top plate 12, the width of the opening 11 can be reduced, and thus the width of the cover plate 2 can be reduced, while the width of the trench 1 remains unchanged. In scenarios where ground space is limited, the area of ​​the cover plate 2 exposed to the ground is reduced, reducing the impact of the cover plate 2 on ground facilities and improving the situation where the cover plate 2 is easily deformed.

[0065] This application also proposes a charging station, referring to Figures 1 to 7 The charging station includes a cable trench. The specific structure of the cable trench refers to the above embodiment. Since this charging station adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0066] The charging station is a car charging station or an electric bicycle charging station. The charging station includes a parking space 9 and a charging pile 10. The parking space 9 and the charging pile 10 are arranged on both sides of the groove 1. The charging pile 10 is electrically connected to the cables in the cable trench; the charging station can also include a vehicle stall.

[0067] The above are merely exemplary embodiments of the present application and are not intended to limit the patent scope of the present application. All equivalent structural transformations made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A cable trench, characterized in that: include: A groove, wherein the groove is provided with a top plate, and the top plate is provided with at least one opening; at least one cover plate, the cover plate being arranged on the opening and being spliced ​​with the top plate; The width of the opening is less than or equal to 1 / 2 of the width of the top plate; and / or, A supporting structure is provided at the position of the opening, and the supporting structure is used to support the cover plate.

2. The cable trench according to claim 1, characterized in that: The supporting structure includes a first limiting groove and a second limiting groove, the first limiting groove and the second limiting groove are respectively arranged on both sides of the opening, and the opposite sides of the cover plate are respectively snapped into the first limiting groove and the second limiting groove.

3. The cable trench according to claim 2, characterized in that: The groove includes a bottom plate, a first side plate, a second side plate and the top plate. The two sides of the bottom plate along the width direction are respectively connected to the first side plate and the second side plate. The top plate is located above the bottom plate and connected to the first side plate.

4. The cable trench according to claim 3, characterized in that: The first limiting groove is provided at one end of the top plate facing the second side plate, the second limiting groove is provided at the second side plate, and both sides of the cover plate are respectively snapped into the first limiting groove and the second limiting groove.

5. The cable trench according to claim 3, characterized in that: The supporting structure includes a supporting section, the supporting section is connected to the top plate, the supporting section extends toward the second side plate, and the top surface of the supporting section intersects with the side surface of the top plate to form the first limiting groove; and / or, The supporting structure further includes an abutting section, which is provided on the top surface of the second side plate. The side surface of the abutting section facing the opening and the top surface of the second side plate form the second limiting groove.

6. The cable trench according to claim 3, characterized in that: The cable trench further includes a plurality of cable supports, which are spaced apart along the length direction of the cable trench, and one end of the cable support is connected to the first side plate or the second side plate.

7. The cable trench according to claim 6, characterized in that: A cable groove is provided on a side of the cable bracket facing the top plate; and / or, The distance between adjacent cable supports is 500 mm to 1000 mm; and / or, The cable supports are arranged along the length direction of the cable trench to form a layer of cable support groups, and at least two layers of spaced-apart cable support groups are provided along the height direction of the trench.

8. The cable trench according to any one of claims 1 to 7, characterized in that The groove is provided with a plurality of openings, the plurality of openings are spaced apart along the length direction of the groove, and the number of the cover plates corresponds to the number of the openings; The groove is provided with a plurality of water collecting structures, and the sidewall slope of the water collecting structures along the length direction of the groove is at least 0.5%; and / or, The cover plate is surrounded by a metal ring; and / or, The groove and the cover plate are both cast in concrete; and / or, The top surface of the cover plate or the top plate should be provided with a plurality of cable signboards, and the distance between adjacent cable signboards should be in the range of 5m to 15m.

9. A charging station, characterized in that: Comprising the cable trench according to any one of claims 1 to 8.

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