A direct current charging pile gun hanging device

By using a self-weight locking mechanism to automatically lock the charging gun interface using the weight of the charging gun, the problem of having to expend a lot of effort to return the charging gun in the existing technology is solved, and automatic return without additional force is achieved.

CN224335473UActive Publication Date: 2026-06-09JIANGMEN ELECTRIC POWER DESIGN INST CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGMEN ELECTRIC POWER DESIGN INST CO LTD
Filing Date
2025-05-22
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The existing DC charging station charging gun return device uses a mechanical locking structure, which requires users to exert a lot of force when returning the charging gun. Women or users with less strength are prone to failure to return the charging gun due to insufficient force.

Method used

The system employs a self-weight locking mechanism, which includes a bracket and a self-weight locking mechanism. The weight of the charging gun causes the bracket to deflect, driving the second end of the self-weight locking mechanism to press against and seal the charging gun interface. Combined with an elastic element, it achieves automatic reset, avoiding the need for additional power.

Benefits of technology

The charging gun can be returned without any extra force, as the self-weight locking mechanism automatically locks using the weight of the charging gun, improving the success rate of return and reducing the difficulty of operation for users.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a direct current charging pile hangs gun device, including stand, support and deadweight locking mechanism, the stand is equipped with the hinged axle of horizontal arrangement, and the support is rotatively connected with the stand through the hinged axle, and the support is inclined extension from the hinged axle place upward, and the support is equipped with the inclined guide slot, and the first end hinged support of deadweight locking mechanism is close to the position of stand, and the support keeps the state of being inclined upward initially, and the user will charge the gun along the inclined guide slot on the support and slide into, and the inclined angle of guide slot makes the charge gun gravity decomposition into the force that is perpendicular to downward and the sliding force along the guide slot, and the support is deflected downward around the hinged axle of stand, and when the support is deflected, the first end of deadweight locking mechanism moves with the support, and the second end of deadweight locking mechanism is swung to the direction of charge gun, and the second end of deadweight locking mechanism presses and seals the interface of charge gun, and the problem that the user often fails to return to the position because of the insufficient force when returning the existing charge gun is solved.
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Description

Technical Field

[0001] This utility model relates to the field of electric vehicle charging technology, and in particular to a DC charging pile mounting device. Background Technology

[0002] With the rapid development of new energy vehicles, the supporting charging infrastructure is becoming increasingly complete. By the end of 2024, the total number of public charging piles in China reached approximately 4 million. Most new energy vehicles use DC charging piles, commonly known as fast charging, for charging outside. DC charging piles are favored for their rapid charging, but they also have drawbacks. The most prominent one is that the current charging gun return device uses a mechanical locking structure. Users need to align the charging gun with the socket and apply considerable pressure for the socket to lock the charging gun in place, thus completing the return operation. Women or users with less strength may fail to return the charging gun due to insufficient force. Therefore, improvements to the existing technology are needed. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a DC charging pile gun hanging device, which can solve the problem that the existing DC charging pile charging gun returning device adopts a mechanical locking structure, requiring users to expend a lot of force when returning the charging gun, and users often fail to return it due to insufficient force.

[0004] A DC charging gun mounting device according to an embodiment of the present invention includes a column, a bracket, and a self-weight locking mechanism. The column is provided with a horizontally arranged hinge shaft. The bracket is rotatably connected to the column through the hinge shaft. The bracket extends upward at an incline from the hinge shaft and is provided with an inclined guide groove. The first end of the self-weight locking mechanism is hinged to the position of the bracket near the column. When the charging gun is placed in the guide groove, the bracket deflects downward around the hinge shaft under the action of the weight of the charging gun, driving the second end of the self-weight locking mechanism to swing towards the charging gun. The second end of the self-weight locking mechanism presses against and seals the interface of the charging gun.

[0005] According to an embodiment of the present invention, a DC charging pile gun mounting device has at least the following beneficial effects: the bracket is connected to the column via a hinge shaft. Initially, the bracket is tilted upwards. The user slides the charging gun into the inclined guide groove on the bracket. The tilt angle of the guide groove decomposes the weight of the charging gun into a vertically downward component and a sliding component along the guide groove. The bracket deflects downwards around the hinge shaft of the column. When the bracket deflects, the first end of the self-weight locking mechanism moves with the bracket, driving the second end of the self-weight locking mechanism to swing towards the charging gun. The second end of the self-weight locking mechanism presses against and seals the interface of the charging gun, thus returning it to its original position. This solves the problem that existing charging guns require a lot of effort to return, and users often fail to return them to their original position due to insufficient force.

[0006] According to some embodiments of this utility model, the self-weight locking mechanism includes a first connecting rod and a second connecting rod. The first end of the second connecting rod is hinged to the column, the first end of the first connecting rod is hinged to the bracket near the column, and the second end of the first connecting rod is hinged to the second connecting rod near the column. When the charging gun is placed in the guide groove, the bracket drives the first connecting rod to rotate, and the second end of the second connecting rod swings towards the charging gun. The second connecting rod presses against and seals the interface of the charging gun.

[0007] According to some embodiments of this utility model, the self-weight locking mechanism further includes an elastic element, a limiting block is connected to the column, and the two ends of the elastic element are respectively connected to the bracket and the limiting block. When the charging gun is placed in the guide groove, the bracket deflects downward around the hinge axis under the action of the weight of the charging gun, and the elastic element extends. When the charging gun is removed from the guide groove, the elastic element pushes the bracket to deflect upward to achieve automatic reset.

[0008] According to some embodiments of this utility model, a sponge is connected to the second end of the second connecting rod facing the charging gun. When the charging gun is placed in the guide groove, the bracket drives the first connecting rod to rotate, and the second end of the second connecting rod swings towards the charging gun. The sponge of the second connecting rod presses against and seals the interface of the charging gun.

[0009] According to some embodiments of the present invention, a first rainproof and dustproof protective cover is provided at the second end of the second connecting rod, and the first rainproof and dustproof protective cover extends along the axial direction of the charging gun.

[0010] According to some embodiments of the present invention, the top of the column is provided with a detachable second rainproof and dustproof protective cover, which extends toward the installation direction of the charging gun to cover the top of the charging gun.

[0011] According to some embodiments of the present invention, the circumferential edge of the second rainproof and dustproof protective cover is provided with a downwardly inclined guide baffle.

[0012] According to some embodiments of the present invention, an illumination component is connected to the inner side of the second rainproof and dustproof protective cover. The illumination component includes a lamp panel, a switch, and a power supply. The power supply is electrically connected to the lamp panel and the switch.

[0013] According to some embodiments of the present invention, the DC charging pile gun mounting device further includes a counterweight base, and the bottom of the column is connected to the counterweight base.

[0014] According to some embodiments of the present invention, the second rainproof and dustproof protective cover is connected to a fixing block, the fixing block is provided with a threaded hole, the column is provided with a through hole corresponding to the position of the threaded hole, and the bolt passes through the through hole and is threadedly connected to the threaded hole, so that the second rainproof and dustproof protective cover is connected to the column.

[0015] 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

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0017] Figure 1 This is a schematic diagram of the DC charging pile gun mounting device according to an embodiment of the present utility model;

[0018] Figure 2 This is another schematic diagram of the DC charging pile gun mounting device according to an embodiment of the present utility model;

[0019] Figure 3 This is a schematic diagram of the bracket according to an embodiment of the present utility model.

[0020] Figure label:

[0021] 10. Column; 11. Counterweight base; 12. Limiting block; 13. Fixing block; 14. Second rainproof and dustproof protective cover; 15. Guide baffle;

[0022] 20. Bracket; 21. Inclined guide groove; 22. Elastic element; 23. First connecting rod; 24. Second connecting rod; 25. First rainproof and dustproof protective cover; 26. Sponge; 27. Charging gun. Detailed Implementation

[0023] 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.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] Reference Figures 1-3 According to an embodiment of the present invention, a DC charging pile gun mounting device includes a column 10, a bracket 20, and a self-weight locking mechanism. The column 10 is provided with a horizontally arranged hinge shaft. The bracket 20 is rotatably connected to the column 10 through the hinge shaft. The bracket 20 extends upward at an incline from the hinge shaft. The bracket 20 is provided with an inclined guide groove 21. The first end of the self-weight locking mechanism is hinged to the position of the bracket 20 near the column 10. When the charging gun 27 is placed in the guide groove, the bracket 20 deflects downward around the hinge shaft under the action of the gravity of the charging gun 27, driving the second end of the self-weight locking mechanism to swing towards the charging gun 27. The second end of the self-weight locking mechanism presses against and seals the interface of the charging gun 27.

[0028] The bracket 20 of this utility model is connected to the column 10 via a hinge shaft. Initially, the bracket 20 is tilted upwards. The user slides the charging gun 27 into the inclined guide groove 21 on the bracket 20. The tilt angle of the guide groove decomposes the gravity of the charging gun 27 into a vertically downward component and a sliding component along the guide groove. The bracket 20 deflects downwards around the hinge shaft of the column 10. When the bracket 20 deflects, the first end of the self-weight locking mechanism moves with the bracket 20, driving the second end of the self-weight locking mechanism to swing towards the charging gun 27. The second end of the self-weight locking mechanism presses against and seals the interface of the charging gun 27, thus returning it to its original position. This solves the problem that existing charging guns 27 require a lot of effort to return, and users often fail to return them to their original position due to insufficient force.

[0029] According to some embodiments of the present invention, the self-weight locking mechanism includes a first link 23 and a second link 24. The first end of the second link 24 is hinged to the column 10, the first end of the first link 23 is hinged to the bracket 20 near the column 10, and the second end of the first link 23 is hinged to the second link 24 near the column 10. When the charging gun 27 is placed in the guide groove, the bracket 20 drives the first link 23 to rotate, and the second end of the second link 24 swings towards the charging gun 27. The second link 24 presses against and seals the interface of the charging gun 27.

[0030] According to some embodiments of the present invention, the self-weight locking mechanism further includes an elastic element 22. A limiting block 12 is connected to the column 10. The two ends of the elastic element 22 are respectively connected to the bracket 20 and the limiting block 12. When the charging gun 27 is placed in the guide groove, the bracket 20 deflects downward around the hinge axis under the gravity of the charging gun 27, and the elastic element 22 extends. When the charging gun 27 is removed from the guide groove, the elastic element 22 pushes the bracket 20 to deflect upward to achieve automatic reset.

[0031] The elastic element 22 of this invention is a tension spring. After the charging gun 27 is placed in the guide groove, its own weight is applied to the bracket 20. Under the action of the weight of the charging gun 27, the bracket 20 deflects downward around the hinge axis. Since the first end of the first connecting rod 23 is hinged to the bracket 20 near the column 10, and the second end of the first connecting rod 23 is hinged to the second connecting rod 24 near the column 10, and the first end of the second connecting rod 24 is hinged to the column 10, the downward deflection of the bracket 20 drives the first connecting rod 23 to rotate, thereby causing the second end of the second connecting rod 24 to swing towards the charging gun 27. After the second end of the second connecting rod 24 swings, it presses against the interface of the charging gun 27, achieving a seal at the interface of the charging gun 27. At the same time as the bracket 20 deflects downward, the elastic element 22 connected to the bracket 20 is stretched and elongated, storing elastic potential energy. When the charging gun 27 is removed from the guide groove, the gravitational force of the charging gun 27 on the bracket 20 disappears. At this time, the elastic potential energy stored in the elastic element 22 is released, pushing the bracket 20 to deflect upward, so that the bracket 20 returns to its initial position and achieves automatic reset. Through the linkage design of the first link 23 and the second link 24, when the charging gun 27 is placed in the guide groove, the second link 24 can accurately press and seal the interface of the charging gun 27. This self-weight locking mechanism uses the weight of the charging gun 27 itself to achieve locking, without the need for an additional power source or complicated operation.

[0032] According to some embodiments of the present invention, a sponge 26 is connected to the second end of the second connecting rod 24 facing the charging gun 27. When the charging gun 27 is placed in the guide groove, the bracket 20 drives the first connecting rod 23 to rotate, and the second end of the second connecting rod 24 swings in the direction close to the charging gun 27. The sponge 26 of the second connecting rod 24 presses against and seals the interface of the charging gun 27.

[0033] When the charging gun 27 is placed into the guide slot, the bracket 20 deflects around its hinge axis under the weight of the charging gun 27. This deflection causes the first connecting rod 23 to begin rotating. Due to the specific hinge connection between the first connecting rod 23 and the second connecting rod 24, the rotation of the first connecting rod 23 further pulls the second connecting rod 24. The second connecting rod 24 swings its second end toward the charging gun 27 around its first hinge point. Finally, the sponge 26 connected to the side of the second connecting rod 24 toward the charging gun 27 comes into contact with the interface of the charging gun 27 and applies a certain pressure, thereby pressing and sealing the interface of the charging gun 27. The sponge 26 has soft and compressible properties. When pressing against the interface of the charging gun 27, it can tightly fit the unevenness of the interface surface, effectively filling gaps. Compared with the direct pressing of hard materials, it can significantly improve the sealing of the interface, prevent dust, moisture and other impurities from entering the interface, and ensure the electrical performance and service life of the charging gun 27. In addition, as a cushioning material, the sponge 26 can act as a buffer when the second connecting rod 24 presses against the interface during the placement of the charging gun 27, thus avoiding rigid collision between the second connecting rod 24 and the interface of the charging gun 27, reducing the impact and wear on the interface, reducing the risk of interface damage caused by collision, and providing good protection for the interface of the charging gun 27.

[0034] According to some embodiments of the present invention, a first rainproof and dustproof protective cover 25 is provided at the second end of the second connecting rod 24, and the first rainproof and dustproof protective cover 25 extends along the axial direction of the charging gun 27.

[0035] According to some embodiments of the present invention, the top of the column 10 is provided with a detachable second rainproof and dustproof protective cover 14, which extends toward the installation direction of the charging gun 27 to cover the top of the charging gun 27.

[0036] When the charging gun 27 is placed into the guide slot, under the influence of its own weight, the second end of the second connecting rod 24 swings toward the charging gun 27, causing the first rainproof and dustproof protective cover 25 mounted on it to move closer to the charging gun 27's interface. After the charging gun 27 is in place, the first rainproof and dustproof protective cover 25 extends along the axial direction of the charging gun 27, initially isolating the interface from the external environment and effectively preventing rainwater from splashing onto the interface. The second rainproof and dustproof protective cover 14 at the top of the column 10 covers the charging gun 27 from above, further preventing rainwater from directly hitting the surface of the charging gun 27.

[0037] According to some embodiments of the present invention, the circumferential edge of the second rainproof and dustproof protective cover 14 is provided with a downwardly inclined guide baffle 15.

[0038] Without the guide baffle 15, rainwater might flow along the inner side of the second rainproof and dustproof protective cover 14, dripping onto critical areas such as the charging gun 27 interface and housing gaps, causing the charging gun 27 to become damp. The presence of the guide baffle 15 prevents rainwater leakage, further enhancing the rainproof protection capability of the second rainproof and dustproof protective cover 14 for the charging gun 27 and reducing the risk of electrical malfunctions in the charging gun 27 due to rainwater intrusion.

[0039] According to some embodiments of the present invention, an illumination component is connected to the inner side of the second rainproof and dustproof protective cover 14. The illumination component includes a lamp panel, a switch and a power supply, and the power supply is electrically connected to the lamp panel and the switch.

[0040] In low-light or nighttime environments, the user can locate the lighting unit's switch, press or toggle it to close it. This closes the circuit between the power supply and the lamp panel, allowing current to flow from the power supply, through the switch, and to the lamp panel, energizing it and causing it to illuminate. The light from the lamp panel illuminates the area under the second rainproof and dustproof protective cover 14 where the charging gun 27 is placed, especially the guide slot. This allows the user to quickly and accurately insert or remove the charging gun 27 from the guide slot without repeated fumbling and adjustments, saving time.

[0041] According to some embodiments of the present invention, the DC charging pile gun mounting device also includes a counterweight base 11, and the bottom of the column 10 is connected to the counterweight base 11.

[0042] The counterweight base 11 increases the weight at the bottom of the DC charging gun mounting device, lowering the center of gravity of the entire DC charging gun mounting device and improving stability. Even when subjected to external wind forces or impact forces during user operation, the DC charging gun mounting device remains stable and will not easily shake or tip over, thus ensuring the safety of mounting and using the charging gun 27.

[0043] According to some embodiments of the present invention, the second rainproof and dustproof protective cover 14 is connected to a fixing block 13. The fixing block 13 is provided with a threaded hole, and the column 10 is provided with a through hole at the position corresponding to the threaded hole. The bolt passes through the through hole and is threadedly connected to the threaded hole so that the second rainproof and dustproof protective cover 14 is connected to the column 10.

[0044] The bolted connection method makes the disassembly and installation of the second rainproof and dustproof protective cover 14 relatively simple and convenient. When the second rainproof and dustproof protective cover 14 is damaged, aged, or needs cleaning, staff can quickly and easily disassemble it for maintenance or replacement, which is very convenient.

[0045] 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 DC charging pile gun mounting device, characterized in that, include: The column is equipped with a horizontally arranged hinge shaft; The bracket is rotatably connected to the column via the hinge shaft. The bracket extends upward at an incline from the hinge shaft and is provided with an inclined guide groove. The self-weight locking mechanism has its first end hinged to the position of the bracket near the column; When the charging gun is placed in the guide groove, the bracket deflects downward around the hinge axis under the action of the charging gun's gravity, driving the second end of the self-weight locking mechanism to swing towards the charging gun. The second end of the self-weight locking mechanism presses against and seals the interface of the charging gun.

2. The DC charging pile gun mounting device according to claim 1, characterized in that: The self-weight locking mechanism includes a first link and a second link. The first end of the second link is hinged to the column, and the first end of the first link is hinged to the bracket near the column. The second end of the first link is hinged to the second link near the column. When the charging gun is placed in the guide groove, the bracket drives the first link to rotate, and the second end of the second link swings towards the charging gun. The second link presses against and seals the interface of the charging gun.

3. The DC charging pile gun mounting device according to claim 2, characterized in that: The self-weight locking mechanism also includes an elastic element. A limiting block is connected to the column. The two ends of the elastic element are respectively connected to the bracket and the limiting block. When the charging gun is placed in the guide groove, the bracket deflects downward around the hinge axis under the action of the charging gun's gravity, and the elastic element extends. When the charging gun is removed from the guide groove, the elastic element pushes the bracket to deflect upward to achieve automatic reset.

4. The DC charging pile gun mounting device according to claim 2, characterized in that: The second end of the second connecting rod is connected to a sponge on the side facing the charging gun. When the charging gun is placed in the guide groove, the bracket drives the first connecting rod to rotate, and the second end of the second connecting rod swings towards the charging gun. The sponge of the second connecting rod presses against and seals the interface of the charging gun.

5. The DC charging pile gun mounting device according to claim 2, characterized in that: The second end of the second connecting rod is provided with a first rainproof and dustproof protective cover, which extends along the axial direction of the charging gun.

6. The DC charging pile gun mounting device according to claim 1, characterized in that: The top of the column is provided with a detachable second rainproof and dustproof protective cover, which extends toward the installation direction of the charging gun to cover the top of the charging gun.

7. The DC charging pile gun mounting device according to claim 6, characterized in that: The second rainproof and dustproof protective cover has a downwardly sloping guide edge on its circumferential edge.

8. The DC charging pile gun mounting device according to claim 6, characterized in that: The inner side of the second rainproof and dustproof protective cover is connected to a lighting component, which includes a lamp panel, a switch and a power supply, and the power supply is electrically connected to the lamp panel and the switch.

9. The DC charging pile gun mounting device according to claim 1, characterized in that: It also includes a counterweight base, and the bottom of the column is connected to the counterweight base.

10. The DC charging pile gun mounting device according to claim 6, characterized in that: The second rainproof and dustproof protective cover is connected to a fixing block, the fixing block is provided with a threaded hole, and the column is provided with a through hole corresponding to the position of the threaded hole. The bolt passes through the through hole and is threaded to the threaded hole so that the second rainproof and dustproof protective cover is connected to the column.