Connection type charging pile expansion slot cable fixing device and charging pile structure

Abstract

The utility model discloses a connection type charging pile expansion slot cable fixing device and a charging pile structure, the device comprises a fixing frame assembly used for supporting a charging pile and an expansion slot assembly, the fixing frame assembly is slidably connected to the expansion slot assembly, and the dynamic adjustment of the position of the charging pile is realized. Wherein the expansion slot assembly comprises a communication slot, a cover plate and fasteners, the fasteners are symmetrically mounted on the inner side of the communication slot, and the cover plate fixedly covers the communication slot through the fasteners. The fixing frame assembly is provided with a cable through hole, and the cable through hole is used for a power supply cable of the charging pile to penetrate through the interior of the communication groove, so that convenience and safety of cable wiring are ensured. According to the device, through sliding connection between the fixing frame assembly and the expansion slot assembly, flexible adjustment of the positions of the charging piles is achieved, even if the distribution distance and the number of the charging piles change, expansion slots do not need to be customized again through the device, and therefore the installation flexibility and the layout expandability can be greatly improved.

Description

Technical Field

[0001] The utility model relates to, but is not limited to, the technical field of charging piles, and in particular to a docking-type charging pile expansion slot cable fixing device and a charging pile structure. Background Art

[0002] Currently, power cables for outdoor charging stations are typically laid on the ground. This method eliminates the need for trench excavation, reduces construction workload, is simple to operate, and facilitates wiring. However, given the diverse and uncertain spacing between charging stations, as well as the significant increase in demand for expansion slot spans in some areas, existing methods have significant limitations. Because each expansion slot must be individually customized to specific dimensions, this not only increases material costs but also extends production cycles and reduces on-site installation flexibility. When temporary adjustments to charging station locations or increases or decreases in the number of charging stations are required, the existing fixed-size expansion slots often struggle to adapt, necessitating the redesign and manufacture of new components, further increasing construction time and wasting resources. Summary of the Invention

[0003] In view of the above problems, the present invention proposes a docking type charging pile expansion slot cable fixing device, which aims to improve the flexibility and scalability of charging pile installation.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] In the first aspect, the utility model proposes a docking type charging pile expansion slot cable fixing device, comprising: a fixing frame assembly and an expansion slot assembly, wherein the fixing frame assembly is slidably connected to the expansion slot assembly; the expansion slot assembly comprises a connecting groove, a cover plate and a fastener, wherein the fastener is symmetrically installed on the inner side of the connecting groove, and the cover plate is fixedly covered on the connecting groove through the fastener; the fixing frame assembly is used to support the charging pile, and the fixing frame assembly is provided with a cable through hole, and the cable through hole is used for allowing the power supply cable of the charging pile to pass through the inside of the connecting groove.

[0006] In combination with the first aspect, in an embodiment of the present invention, the fixing frame assembly includes a fixing bracket and an outer cover, the fixing bracket is movably installed in the length direction of the expansion slot assembly, and the outer cover is covered on the fixing bracket.

[0007] In combination with the first aspect, in one embodiment of the present utility model, the cable through hole is located on the outer cover, the fixed bracket includes a support frame, a first base and a second base, the support frame includes a column, a cross beam and a longitudinal beam, the columns, cross beams and longitudinal beams are staggered and fixedly connected to form a hollow structure, the position of the cable through hole corresponds to the position of the hollow structure; the first base and the second base are fixedly connected to the column.

[0008] In combination with the first aspect, in one embodiment of the present utility model, the connecting groove includes a first side surface, a second side surface and a bottom surface, the first side surface and the second side surface are respectively fixed on opposite sides of the bottom surface, and the first side surface and the second side surface are both perpendicular to the bottom surface in the same direction; the bottom surface is provided with a first reinforcing structure, and the first side surface and the second side surface are provided with a first mounting hole position, and the fastener is symmetrically arranged on the first side surface and the second side surface through the first mounting hole position.

[0009] In combination with the first aspect, in one embodiment of the present invention, a second reinforcement structure is provided on the top of the cover plate, a second mounting hole for fixing with the fastener is provided on the cover plate, and the width of the cover plate is greater than the width of the connecting groove.

[0010] In combination with the first aspect, in one embodiment of the present utility model, the fastener includes a first connecting surface, a second connecting surface and a third connecting surface, the second connecting surface and the third connecting surface are respectively fixed on opposite sides of the first connecting surface, and the second connecting surface and the third connecting surface are both perpendicular to the first connecting surface in the same direction; the first connecting surface is provided with a first through hole, and the position of the first through hole corresponds to the position of the first mounting hole; the second connecting surface is provided with a second through hole, and the position of the second through hole corresponds to the position of the second mounting hole.

[0011] In combination with the first aspect, in an embodiment of the present invention, a third mounting hole is provided on the bottom surface of the communicating groove, and a third through hole is provided on the third connecting surface. The position of the third through hole corresponds to the position of the third mounting hole.

[0012] In combination with the first aspect, in an embodiment of the present invention, the support frame is provided with a stud, the outer cover is provided with a screw hole, and the stud is passed through and fixed in the screw hole.

[0013] In combination with the first aspect, in an embodiment of the present utility model, the fixing bracket further includes a fixing member, a fourth mounting hole is opened on the first base and the second base, and the fixing member is passed through the fourth mounting hole to fix the fixing bracket.

[0014] In a second aspect, the utility model proposes a charging pile structure, comprising the docking-type charging pile expansion slot cable fixing device and a charging pile body as described above, wherein the charging pile body is installed above the docking-type charging pile expansion slot cable fixing device.

[0015] The beneficial effects of the utility model include:

[0016] 1. The docking-style charging pile expansion slot cable fixture utilizes a sliding connection between the mounting bracket and the expansion slot, enabling flexible adjustment of the charging pile position. Regardless of changes in the charging pile spacing or future increases or decreases in the number of charging piles, the fixture can quickly adapt without resizing the expansion slot, significantly improving on-site installation flexibility and layout scalability.

[0017] 2. By adopting standardized expansion slot components and adjustable mounting brackets, we can reduce the additional material costs and production time caused by size customization. At the same time, the modular design makes production more efficient, enabling a quick response to market demand and shortening the overall cycle from design to installation.

[0018] 3. This eliminates the tedious process of redesigning due to expansion slot size mismatches and simplifies the installation process. Construction personnel only need to adjust the position of the mounting bracket assembly on the expansion slot according to actual needs to quickly complete the installation and wiring of the charging pile, significantly improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention 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 invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is the overall structural diagram of the cable fixing device for the expansion slot of the docking type charging pile provided by the utility model;

[0021] Figure 2 This is a schematic diagram of the overall structure of the fixing frame assembly provided by the utility model;

[0022] Figure 3 This is a schematic diagram of the exploded structure of the fixing frame assembly provided by the present utility model;

[0023] Figure 4 This is a schematic diagram of the overall structure of the expansion slot assembly provided by the utility model;

[0024] Figure 5 It is a structural schematic diagram of the fastener provided by the utility model;

[0025] Figure 6 This is a schematic diagram of adjusting the length of the cable fixing device for the expansion slot of the docking type charging pile provided by the utility model;

[0026] Figure markings: fixing frame assembly 110; expansion slot assembly 120; connecting slot 121; cover plate 122; fastener 123; fixing bracket 111; outer cover 112; cable through hole 310; support frame 320; first base 330; second base 340; first side surface 410; second side surface 420; bottom surface 430; first connecting surface 510; second connecting surface 520; third connecting surface 530; first reinforcement structure 440; second reinforcement structure 450; first mounting hole position 10; second mounting hole position 20. DETAILED DESCRIPTION

[0027] The embodiments described in the present invention are intended to more clearly illustrate the technical solution of the present invention and do not constitute a limitation on the technical solution provided by the present invention. Those skilled in the art will appreciate that with the evolution of technology and the emergence of new application scenarios, the technical solution provided by the present invention is also applicable to similar technical problems.

[0028] In addition, the terms "includes," "comprises," and "has," and any variations thereof, are intended to cover a non-exclusive inclusion.

[0029] In the description of this utility model, it should be noted that terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicating directions or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] These terms are primarily intended to better describe the embodiments of the present disclosure and their implementations, and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed and operated in a specific orientation. Furthermore, some of the above terms, in addition to being used to indicate orientation or positional relationships, may also be used to indicate other meanings. For example, the term "on" may also be used in certain circumstances to indicate a dependency or connection relationship.

[0031] For those skilled in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0032] For those skilled in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0033] Unless otherwise stated, the term "plurality" means two or more.

[0034] In the embodiments of the present disclosure, the term "and / or" is used to describe an association relationship between objects, indicating that three relationships may exist. For example, A and / or B means: A or B, or A and B.

[0035] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0036] In current outdoor charging station applications, direct ground-laying is commonly used for power cable installation. This approach streamlines the construction process, avoids complex trench excavation, ensures efficient and convenient construction, and facilitates cable connection and maintenance. However, as charging station layout requirements become increasingly diverse and complex, traditional laying methods are gradually becoming increasingly limited. Specifically, existing ground-laying solutions are limited by the diverse and uncertain spacing between charging stations, as well as the significant increase in the span requirements for expansion slots in some areas. Because each expansion slot must be individually customized to specific dimensions, this not only increases material costs but also extends production cycles and reduces on-site installation flexibility. When temporary adjustments to charging station locations or increases or decreases in the number of charging stations are required, the existing fixed-size expansion slots often struggle to adapt, necessitating the redesign and manufacture of new components, further increasing construction time and resource waste.

[0037] In view of the above problems, the present invention proposes a docking type charging pile expansion slot cable fixing device and a charging pile structure. The device includes a fixing frame assembly and an expansion slot assembly for supporting the charging pile. The fixing frame assembly is slidably connected to the expansion slot assembly, thereby realizing dynamic adjustment of the position of the charging pile. The expansion slot assembly includes a connecting slot, a cover plate and a fastener. The fastener is symmetrically installed on the inner side of the connecting slot. The cover plate is fixed to the connecting slot by the fastener, which not only protects the internal wiring of the connecting slot but also facilitates maintenance. The fixing frame assembly is provided with a cable through-hole, which is used for the power supply cable of the charging pile to pass through the inside of the connecting slot, thereby ensuring the convenience and safety of cable wiring. The sliding connection design of the fixing frame assembly and the expansion slot assembly of the present device has a high degree of modularity and adjustability, thereby realizing flexible adjustment of the position of the charging pile. Regardless of how the distribution spacing of the charging piles changes, or whether the number of charging piles needs to be increased or decreased in the future, the device can adapt quickly without the need to re-customize the expansion slot size, which greatly improves the flexibility of on-site installation and the scalability of the layout. In addition, for construction workers, during on-site installation, they only need to simply adjust the position of the fixing bracket assembly on the expansion slot to complete the quick installation and wiring of the charging pile, greatly improving construction efficiency.

[0038] The present invention is specifically described through the following embodiments.

[0039] See also Figure 1 , Figure 1 This is an overall structural diagram of the docking type charging pile expansion slot cable fixing device provided by the present invention. This device is composed of two core components: an expansion slot assembly 120 and a fixing frame assembly 110 for supporting the charging pile, wherein the fixing frame assembly 110 is designed to be a structure that can slide smoothly on the expansion slot assembly 120, thereby realizing flexible installation and adjustment of the charging pile. Specifically, the expansion slot assembly 120 includes fasteners 123, a connecting groove 121 as a core channel, and a cover plate 122 for closing the channel, wherein the fasteners 123 are symmetrically arranged on the inner side of the connecting groove 121, and the cover plate 122 can be fixed to the connecting groove 121 through the fasteners 123 distributed on the inner side of the connecting groove 121, ensuring the tightness and safety of the structure. The cable through-hole 310 specially opened on the fixing frame assembly 110 allows the power supply cable of the charging pile to easily pass through the inside of the connecting groove 121, which not only maintains the neat appearance, but also facilitates subsequent maintenance and repair work.

[0040] See also Figure 2 , Figure 2 It is an overall structural diagram of the fixing frame assembly provided by the present invention. The fixing frame assembly 110 is composed of two major components: a fixing bracket 111 and an outer cover 112. The fixing bracket 111 can be flexibly moved and installed along the length direction of the expansion slot assembly 120. The outer cover 112 is surrounded by thin plates. By covering the outer cover 112 on the fixing bracket 111, the internal precision structure of the fixing bracket 111 can be effectively shielded and protected to prevent damage to it by external factors. During the on-site construction and installation stage, for the installation process of the fixing frame assembly 110, the fixing bracket 111 can be first firmly installed on the construction surface to ensure that its position is accurate and firm; then, the outer cover 112 is accurately installed on the fixing bracket 111 to complete the installation process of the entire fixing frame assembly 110.

[0041] In a possible embodiment, if Figure 3As shown, the cable through-hole 310 is provided on the outer cover 112 and serves as an important channel for connecting the inside and outside. The fixing bracket 111 is composed of a support frame 320, a first base 330, and a second base 340. The support frame 320 is precisely interlaced and fixedly connected by columns, crossbeams, and longitudinal beams to construct a stable arched hollow structure. The position of this structure corresponds precisely to the cable through-hole 310, providing a channel for external cables (e.g., the power supply cable of a charging pile), enabling the cable to easily pass through the through-hole, extend into the hollow structure, and finally be deployed in the connection groove 121. In addition, to significantly improve the stability and installation convenience of the fixing bracket 111, the first base 330 and the second base 340 are both provided with fourth mounting holes. These holes are designed specifically to fit fixing parts (such as explosive bolts). During on-site construction and installation, simply inserting and fastening the fixing parts into the holes can achieve a firm connection between the fixing bracket 111 and the construction ground surface, ensuring its stable support state in various environments. This design not only simplifies the installation process but also significantly improves the installation efficiency and reliability. It is worth mentioning that both the first base 330 and the second base 340 are tightly and fixedly connected to the columns of the support frame 320, further strengthening the stability and load-bearing capacity of the overall structure, providing a solid guarantee for the long-term stable operation of the cable and its related equipment.

[0042] In a feasible embodiment, studs are configured on the support frame 320, and corresponding screw holes are provided on the outer cover 112. The studs can accurately penetrate into the screw holes and achieve a firm connection between the support frame 320 and the outer cover 112 through fastening. Through this structural arrangement, an external charging pile can use these studs as connection points to be closely and stably combined with the fixing frame assembly 110.

[0043] In a feasible embodiment, as Figure 4 shown, the connection groove 121 is seamlessly integrated by a first side 410, a second side 420, and a bottom surface 430 to form a solid integrally formed structure. During its production process, the connection groove 121 is a metal bridge formed by one-time processing, and the first side 410 and the second side 420 are smooth. The first side 410 and the second side 420 are precisely fixed on both side edges of the bottom surface 430 and are both perpendicular to the bottom surface 430, thereby enhancing the stability of the connection groove 121. Further, symmetric first mounting holes 10 are provided on both the first side 410 and the second side 420, providing precise position references for the installation of the fasteners 123.

[0044] In a feasible embodiment, the fastener 123 can be a formed part after bending a thick metal plate, with a "匚" - shaped side view and mounting holes left on all three sides, respectively for the connection groove 121 and the cover plate 122. As Figure 5As shown, fastener 123 can be composed of a first connecting surface 510, a second connecting surface 520, and a third connecting surface 530, which are interconnected in a stable geometric relationship. The second connecting surface 520 and the third connecting surface 530 are both perpendicular to the first connecting surface 510, ensuring the overall strength of fastener 123. Specifically, the first through-hole on the first connecting surface 510 precisely corresponds to the first mounting hole 10 of the connecting groove 121, ensuring that fastener 123 is securely connected to the connecting groove 121. The second through-hole on the second connecting surface 520 precisely corresponds to the second mounting hole 20 on the cover plate 122, ensuring that the cover plate 122 is securely connected to the connecting groove 121. Furthermore, the third mounting hole added to the bottom surface 430 of the connecting groove 121 corresponds to the third through-hole on the third connecting surface 530, providing additional support for the secure connection between the connecting groove 121 and the construction surface. During installation, fasteners 123 are first symmetrically installed on the first and second sides 410 and 420 of connecting trough 121 through the first mounting holes 10. Connecting trough 121 is then placed on the construction ground. Using high-strength fasteners such as explosive screws, connecting trough 121 and its internal fasteners 123 are securely fastened to the ground through the third mounting holes at the bottom of connecting trough 121 and the third through-holes in fasteners 123. This installation process is not only simple and quick, but also ensures the stability and durability of connecting trough 121 when subjected to external forces such as foot traffic and kicking, effectively protecting the safety of the internal cables.

[0045] In a feasible embodiment, after the fixing frame assembly 110 is slid to the target position on the expansion slot assembly 120, the cover 122 can be flexibly cut to a matching precise size according to actual needs. This process realizes continuous and stepless adjustment of the size, ensuring a high degree of adaptability and flexibility.

[0046] In a possible embodiment, if Figure 4 As shown, in order to enhance the bearing capacity and structural stability of the connecting groove 121, the bottom surface 430 is provided with a first reinforcement structure 440. This structure is presented in the form of regularly arranged concave and convex reinforcement ribs distributed in rows, which not only improves the compressive resistance of the bottom surface 430, but also gives the connecting groove 121 a more sturdy and durable characteristic.

[0047] In one feasible embodiment, the top of the cover plate 122 is also provided with a second reinforcement structure 450. As a one-piece formed sheet metal component, the cover plate 122 is topped with rows of regularly spaced concave and convex reinforcement ribs, which effectively enhance the strength and rigidity of the cover plate 122. Notably, the width of the cover plate 122 is slightly greater than that of the connecting groove 121. This subtle difference allows the cover plate 122 to completely cover the opening of the connecting groove 121, providing not only effective protection but also improved overall sealing.

[0048] The following uses a specific example to illustrate the installation process of the cable fixing device for the expansion slot of a docking type charging pile.

[0049] First, use screws and other fixings to accurately penetrate and fix them in the first mounting hole 10 of the connecting groove 121 and the first through hole of the fastener 123 to ensure that the connecting groove 121 and the fastener 123 are firmly connected. After the fasteners 123 are installed, they should be symmetrically and regularly distributed to enhance the structural strength of the expansion slot 3 so that it can withstand the trampling or kicking of pedestrians. At the same time, the connecting groove 121 also effectively protects the internal cables from external influences. Subsequently, the connecting groove 121 with the fasteners installed is placed stably on the construction ground, and through the third mounting hole at its bottom, high-strength fixings such as explosive screws are used to firmly fix the connecting groove 121 and its built-in fasteners 123 to the ground. After confirming that the connecting groove 121 is stable, the cable laying work can begin. After the cables are laid, the cover 122 is precisely placed at the opening of the connecting groove 121, and screws are used to tightly connect it to the fastener 123 through the second mounting hole 20 on the cover 122 to ensure that the cover 122 is firmly fixed to the connecting groove 121 and cannot be easily moved. Next, place the fixing frame assembly 110 at both ends of the connecting groove 121 and carefully adjust its position to the optimal state. Subsequently, use explosion screws to firmly fix the fixing bracket 111 of the fixing frame assembly 110 to the ground. Then place the outer cover 112 on the fixing bracket 111, and use screws to tightly connect it to the fixing bracket 111 through the mounting holes on the outer cover 112. A wire hole is specially designed in the middle of the outer cover 112 to facilitate the passage of cables and connection to the charging pile. Faced with the size challenges of different construction plans, the fixing frame assembly 110 shows a high degree of flexibility. As Figure 6 As shown, when there is a mismatch between spacing 1 and spacing 2 between charging pile brackets 110, they can be freely moved to any horizontal position on expansion slot assembly 120, easily adapting to the actual needs of various installation sites. No complex machining of expansion slot assembly 120 is required; simply adjusting the position of fixed bracket 111 and outer cover 112 and appropriately trimming outer cover 112 allows for stepless size adjustment, greatly simplifying the installation process and improving construction efficiency.

[0050] In addition, the utility model also provides a charging pile structure, which is composed of the aforementioned docking-type charging pile expansion slot cable fixture and the charging pile body. In this design, the charging pile body can be installed on the fixing frame assembly of the docking-type charging pile expansion slot cable fixture, thereby giving the charging pile body unprecedented freedom and flexibility. Specifically, through this installation method, the charging pile body can be installed in combination on the expansion slot assembly of the docking-type charging pile expansion slot cable fixture, and supports arbitrary positioning function to achieve stepless adjustment. This feature greatly improves the flexibility and versatility of the on-site installation solution, allowing the charging pile to easily adapt to various complex and changing installation environments, and can achieve fast and accurate installation without tedious custom processing.

[0051] The above is a specific description of the preferred implementation of the present invention, but the present invention is not limited to the above implementation. Technical personnel familiar with the field can also make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of the present invention.

Claims

1. A cable fixing device for an expansion slot of a docking type charging pile, characterized in that: include: A fixing frame assembly and an expansion slot assembly, wherein the fixing frame assembly is slidably connected to the expansion slot assembly; the expansion slot assembly includes a connecting slot, a cover plate and a fastener, wherein the fastener is symmetrically installed on the inner side of the connecting slot, and the cover plate is fixedly covered on the connecting slot through the fastener; the fixing frame assembly is used to support the charging pile, and the fixing frame assembly is provided with a cable through-hole, and the cable through-hole is used for allowing the power supply cable of the charging pile to pass through the inside of the connecting slot.

2. A cable fixing device for an expansion slot of a docking type charging pile according to claim 1, characterized in that: The fixing frame assembly includes a fixing bracket and an outer cover. The fixing bracket can be movably installed in the length direction of the expansion slot assembly, and the outer cover is covered on the fixing bracket.

3. A cable fixing device for an expansion slot of a docking type charging pile according to claim 2, characterized in that: The cable through hole is located on the outer cover, and the fixed bracket includes a support frame, a first base and a second base. The support frame includes a column, a cross beam and a longitudinal beam. The columns, cross beams and longitudinal beams are staggered and fixedly connected to form a hollow structure. The position of the cable through hole corresponds to the position of the hollow structure; the first base and the second base are fixedly connected to the column.

4. The cable fixing device for the expansion slot of a docking type charging pile according to claim 1, characterized in that: The connecting groove includes a first side surface, a second side surface and a bottom surface, the first side surface and the second side surface are respectively fixed on opposite sides of the bottom surface, and the first side surface and the second side surface are both perpendicular to the bottom surface in the same direction; the bottom surface is provided with a first reinforcing structure, and the first side surface and the second side surface are provided with first mounting holes, and the fasteners are symmetrically arranged on the first side surface and the second side surface through the first mounting holes.

5. A cable fixing device for an expansion slot of a docking type charging pile according to claim 4, characterized in that: A second reinforcing structure is provided on the top of the cover plate, and a second mounting hole for fixing with the fastener is provided on the cover plate. The width of the cover plate is greater than the width of the communicating groove.

6. A cable fixing device for an expansion slot of a docking type charging pile according to claim 5, characterized in that: The fastener includes a first connecting surface, a second connecting surface and a third connecting surface, the second connecting surface and the third connecting surface are respectively fixed on opposite sides of the first connecting surface, and the second connecting surface and the third connecting surface are both perpendicular to the first connecting surface in the same direction; the first connecting surface is provided with a first through hole, and the position of the first through hole corresponds to the position of the first mounting hole; the second connecting surface is provided with a second through hole, and the position of the second through hole corresponds to the position of the second mounting hole.

7. A cable fixing device for an expansion slot of a docking type charging pile according to claim 6, characterized in that: A third mounting hole is provided on the bottom surface of the communicating groove, and a third through hole is provided on the third connecting surface. The position of the third through hole corresponds to the position of the third mounting hole.

8. The cable fixing device for the expansion slot of a docking type charging pile according to claim 3, characterized in that: The support frame is provided with a stud, the outer cover is provided with a screw hole, and the stud is passed through and fixed in the screw hole.

9. The cable fixing device for the expansion slot of a docking type charging pile according to claim 3, characterized in that: The fixing bracket further includes a fixing piece. A fourth mounting hole is provided on the first base and the second base. The fixing piece is passed through the fourth mounting hole to fix the fixing bracket.

10. A charging pile structure, characterized in that: It comprises a docking type charging pile expansion slot cable fixing device and a charging pile body as described in any one of claims 1 to 9, and the charging pile body is installed above the docking type charging pile expansion slot cable fixing device.

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