Charging pile grounding device

Abstract

The utility model relates to the technical field of charging pile grounding, in particular to a charging pile grounding device which comprises a grounding nail and a charging pile body, the upper end face of the grounding nail is fixedly connected with a bearing plate, the outer side of a connecting screw rod is spirally connected with a nut, the outer side of the grounding nail is fixedly connected with an annular shell used for containing saline water, and the outer side of the annular shell is fixedly connected with the charging pile body. One side of the annular shell is communicated with a liquid inlet pipe, one end, far away from the annular shell, of the liquid inlet pipe is provided with an external thread, and the bottom of the annular shell is communicated with a plurality of liquid outlet pipes with the same pipe diameter. Saline water capable of enhancing the conductivity of the grounding pin is placed in the annular shell through the liquid inlet pipe, drips on soil near the grounding pin through the liquid outlet pipe, and is mixed with the soil to act on the grounding pin, so that the conductive effect of the grounding pin is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of charging pile grounding, in particular to a charging pile grounding device. Background Art

[0002] The function of a charging pile is similar to that of a gas pump in a gas station. It can be fixed on the ground or on a wall and installed in parking lots or charging stations in public buildings and residential areas. It can charge various types of electric vehicles according to different voltage levels. The input end of the charging pile is directly connected to the AC power grid, and the output end is equipped with a charging plug for charging electric vehicles. With the large-scale construction and application of electric vehicle charging stations and charging piles, their safety has received more and more attention, especially DC charging piles, which have high power, large size, high voltage, and are often equipped with batteries for energy storage. They have a complex structure and require a grounding device to guide the current.

[0003] After a long period of use, the conductive effect of the grounding pin of the charging pile grounding device may be reduced. The poor conductive effect of the grounding pin may affect the use of the charging pile. Therefore, a charging pile grounding device is proposed to address the above problem. Utility Model Content

[0004] The purpose of the utility model is to provide a charging pile grounding device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A charging pile grounding device comprises a grounding nail and a charging pile body, wherein the upper end face of the grounding nail is fixedly connected to a load-bearing plate, one side of the grounding nail is fixedly connected to a connecting screw, a collar is sleeved on the outer side of the connecting screw, a connecting wire is fixedly connected to the outer side of the collar, a nut is spirally connected to the outer side of the connecting screw, an annular shell for containing salt water is fixedly connected to the outer side of the grounding nail, one side of the annular shell is connected to a liquid inlet pipe, an end of the liquid inlet pipe away from the annular shell is provided with an external thread, an end of the liquid inlet pipe provided with an external thread is spirally connected to a sealing cap provided with an internal thread, and the bottom of the annular shell is connected to a plurality of liquid outlet pipes of equal diameter.

[0007] Preferably, a sealing gasket is fixedly connected to the inner side of the sealing cap, and the sealing gasket fits the liquid inlet pipe.

[0008] Preferably, the liquid outlet pipes are arranged in an array with equal angles with the same center, and the liquid outlet pipe array is outside the grounding nail.

[0009] Preferably, a plurality of reinforcing nails are fixedly connected to the lower end surface of the annular shell, and the plurality of reinforcing nails are arranged in an equiangular array with the same center.

[0010] Preferably, the collar is arranged between the grounding nail and the nut, and the connecting wire is electrically connected to the charging pile body.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] In the utility model, by means of a structure consisting of an annular shell, a liquid inlet pipe and a liquid outlet pipe, salt water which can enhance the conductivity of the grounding pin is placed in the annular shell through the liquid inlet pipe, and the salt water drips onto the soil near the grounding pin through the liquid outlet pipe. The salt water mixed with the soil acts on the grounding pin, thereby enhancing the conductive effect of the grounding pin. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 For this utility model Figure 1 A schematic diagram of the structure at A;

[0015] Figure 3 This is a schematic diagram of the installation structure of the annular housing of the utility model;

[0016] Figure 4 It is a schematic diagram of the cross-sectional structure of the inner screw cap of the utility model.

[0017] In the figure: 1. Grounding nail; 2. Load-bearing plate; 3. Connecting screw; 4. Nut; 5. Ring shell; 6. Liquid inlet pipe; 7. Sealing cap; 8. Sealing gasket; 9. Liquid outlet pipe; 10. Reinforcement nail; 11. Charging pile body; 12. Connecting wire; 13. Ring. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0020] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps described in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0021] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0022] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0023] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0024] See also Figure 1-4 , the utility model provides a technical solution:

[0025] A charging pile grounding device comprises a grounding nail 1 and a charging pile body 11, wherein a load-bearing plate 2 is fixedly connected to the upper end surface of the grounding nail 1, a connecting screw 3 is fixedly connected to one side of the grounding nail 1, a collar 13 is sleeved on the outer side of the connecting screw 3, a connecting line 12 is fixedly connected to the outer side of the collar 13, a nut 4 is spirally connected to the outer side of the connecting screw 3, an annular shell 5 for containing salt water is fixedly connected to the outer side of the grounding nail 1, a liquid inlet pipe 6 is connected to one side of the annular shell 5, an end of the liquid inlet pipe 6 away from the annular shell 5 is provided with an external thread, a sealing cap 7 with an internal thread is spirally connected to the end of the liquid inlet pipe 6 with the external thread, and a plurality of liquid outlet pipes 9 with equal diameters are connected to the bottom of the annular shell 5.

[0026] A sealing gasket 8 is fixedly connected to the inner side of the sealing cap 7, and the sealing gasket 8 fits with the liquid inlet pipe 6. This arrangement enables the sealing gasket 8 to enhance the sealing effect of the sealing cap 7 and the liquid inlet pipe 6; the liquid outlet pipes 9 are arranged in an equiangular array with the same center, and the liquid outlet pipes 9 are arranged on the outside of the grounding nail 1. This arrangement allows the salt water to drip evenly on the outside of the grounding nail 1; a plurality of reinforcement nails 10 are fixedly connected to the lower end surface of the annular shell 5, and the plurality of reinforcement nails 10 are arranged in an equiangular array with the same center. This arrangement allows the reinforcement nails 10 to reinforce the grounding nail 1, so that the grounding nail 1 can be stably placed underground; the ring 13 is arranged between the grounding nail 1 and the nut 4, and the connecting wire 12 is electrically connected to the charging pile body 11. This arrangement connects the connecting wire 12 to the grounding nail 1, thereby realizing that the charging pile grounding device grounds the charging pile body 11.

[0027] Working process: All electrical appliances in the utility model are provided with an external power supply. When the charging pile grounding device is used to ground the charging pile body 11, the grounding nail 1 is placed vertically at the set position, and then the bearing plate 2 is hammered by a tool, so that the bearing plate 2 drives the grounding nail 1 to move underground, and the grounding nail 1 drives the connecting screw 3 and the annular shell 5 to move, and the annular shell 5 drives the reinforcement nail 10 to move. When a part of the reinforcement nail 10 is buried underground, the hammering of the bearing plate 2 is stopped, and then the sealing cap 7 is rotated to make the sealing cap 7 and the sealing gasket 8 separate from the liquid inlet pipe 6, and the mixed brine is passed through the liquid inlet The tube 6 enters into the annular shell 5, and the salt water drips onto the soil near the grounding nail 1 through the liquid outlet pipe 9. The salt water mixed with the soil acts on the grounding nail 1, thereby enhancing the conductive effect of the grounding nail 1. Then the nut 4 is rotated to make the nut 4 disengage from the connecting screw 3, and the ring 13 is sleeved on the outside of the connecting screw 3. Then the nut 4 is rotated to make the two sides of the ring 13 respectively combine with the grounding nail 1 and the nut 4, so that the connecting wire 12 is connected to the grounding nail 1, and the connecting wire 12 is electrically connected to the charging pile body 11, that is, the charging pile grounding device realizes the grounding of the charging pile body 11.

[0028] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A charging pile grounding device, comprising a grounding nail (1) and a charging pile body (11), characterized in that: The upper end surface of the grounding nail (1) is fixedly connected to a load-bearing plate (2), one side of the grounding nail (1) is fixedly connected to a connecting screw (3), the outer side of the connecting screw (3) is sleeved with a collar (13), the outer side of the collar (13) is fixedly connected to a connecting wire (12), the outer side of the connecting screw (3) is spirally connected to a nut (4), the outer side of the grounding nail (1) is fixedly connected to an annular shell (5) for containing salt water, one side of the annular shell (5) is connected to a liquid inlet pipe (6), one end of the liquid inlet pipe (6) away from the annular shell (5) is provided with an external thread, the end of the liquid inlet pipe (6) provided with the external thread is spirally connected to a sealing cap (7) provided with an internal thread, and the bottom of the annular shell (5) is connected to a plurality of liquid outlet pipes (9) of equal diameter.

2. A charging pile grounding device according to claim 1, characterized in that: A sealing gasket (8) is fixedly connected to the inner side of the sealing cap (7), and the sealing gasket (8) is in close contact with the liquid inlet pipe (6).

3. A charging pile grounding device according to claim 1, characterized in that: The liquid outlet pipes (9) are arranged in an array at equal angles with the same center, and the array of the liquid outlet pipes (9) is located outside the grounding nail (1).

4. A charging pile grounding device according to claim 1, characterized in that: A plurality of reinforcing nails (10) are fixedly connected to the lower end surface of the annular shell (5), and the plurality of reinforcing nails (10) are arranged in an equiangular array with the same center.

5. A charging pile grounding device according to claim 1, characterized in that: The collar (13) is arranged between the grounding nail (1) and the nut (4), and the connecting wire (12) is electrically connected to the charging pile body (11).

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