CN220700922U - Charging storage device and charging pile - Google Patents

Abstract

The utility model belongs to the technical field of automobile charging equipment, and particularly relates to a charging storage device and a charging pile. The charge storage device includes: a support structure having a first end and a second end disposed opposite the first end; the storage structure comprises a winding assembly connected with the first end and a positioning wire with one end connected with the charging wire; the positioning wire is provided with a first position state and a second position state, when the positioning wire is in the first position state, the other end of the positioning wire is wound and stored in the winding assembly, and the connection position of the charging wire and the positioning wire is adjacent to the first end; one end of the positioning wire is stretched and released from the winding assembly under the action of external force so as to switch the positioning wire to a second position state, and the connection position of the charging wire and the positioning wire is far away from the first end. The utility model can avoid the charging wire from drooping on the ground, and can also avoid the winding of the charging wire into a knot, thereby improving the reliability and safety of the use of the charging wire.

Description

Charging storage device and charging pile

Technical Field

The utility model belongs to the technical field of automobile charging equipment, and particularly relates to a charging storage device and a charging pile.

Background

With the widespread popularity of electric vehicles, the demand for charging piles is showing a rapid growing trend. This trend is particularly important under the environmental and sustainable energy issues of today. However, although the demand for charging piles is rapidly rising, there are still some problems to be solved in the actual use process, particularly in terms of the use of charging guns and gun line management.

The most popular choice is the 250A high power charging gun on the market. However, the charging gun wire is often scattered on the ground during actual charging, which results in a series of troubles. First, the charging gun wire is easily entangled to become tangled, even if a knot is made, which may cause trouble when in use. Meanwhile, the signal wire in the charging gun wire may be twisted off due to entanglement, so that the charging effect is affected, and even the charging equipment is damaged.

In addition, the charging gun lines scattered randomly on the ground also cause potential safety hazards. People may inadvertently trip the gun line when using the charging pile, thereby falling or even being injured. This is particularly the case at night or in severe weather conditions.

Disclosure of Invention

An object of the embodiment of the application is to provide a charging storage device, which aims at solving the problem of how to improve the safety of a charging wire.

In order to achieve the above purpose, the technical scheme adopted in the application is as follows:

in a first aspect, a charging storage device is provided, and cooperation charging wire uses, the charging storage device includes:

a support structure having a first end and a second end disposed opposite the first end; and

the storage structure comprises a winding assembly connected with the first end and a positioning wire with one end connected with the charging wire;

the positioning wire is provided with a first position state and a second position state, when the positioning wire is in the first position state, the other end of the positioning wire is wound around and contained in the winding assembly, and the connection position of the charging wire and the positioning wire is adjacent to the first end; one end of the positioning wire is stretched and released from the winding assembly under the action of external force, so that the positioning wire is switched to the second position state, and the connection position of the charging wire and the positioning wire is far away from the first end.

In some embodiments, the winding assembly comprises a roller for winding the positioning wire and a spring mechanism connected with the first end, wherein the roller is rotatably arranged at the first end, and the spring mechanism is used for driving the roller to rotate along a first rotation direction so as to switch the positioning wire from the second position state to the first position state; the roller rotates along a second rotation direction so as to switch the positioning line from the first position state to the second position state, and the first rotation direction is opposite to the second rotation direction.

In some embodiments, the spring mechanism includes an auxiliary wheel rotatably disposed and a spring wound around the auxiliary wheel, a free end of the spring is connected to a side surface of the roller, and the spring is partially wound around the roller when the positioning wire is switched from the first position state to the second position state.

In some embodiments, the charge storage device further comprises a self-locking mechanism having a locked state and an unlocked state, the self-locking mechanism limiting rolling of the roller in the first rotational direction when the self-locking mechanism is in the locked state; when the self-locking mechanism is in the unlocking state, the self-locking mechanism releases the limit on the rotation of the roller.

In some embodiments, the self-locking mechanism comprises a self-locking swing arm with one end rotatably arranged and a self-locking head connected with the other end of the self-locking swing arm, a plane determined by a rotation track of the self-locking swing arm is parallel to a rotation plane of the roller, and when the self-locking mechanism is in the locking state, the self-locking head is buckled with the roller and limits the roller to roll along the first rotation direction; when the self-locking mechanism is in the unlocking state, the self-locking head is unlocked from the roller.

In some embodiments, a circulation groove, a positioning groove and a guiding groove are formed in the wheel surface of the roller, the circulation groove is adjacent to the rotation center of the roller, the guiding groove is far away from the rotation center of the roller, two ends of the positioning groove are respectively communicated with the guiding groove and the circulation groove, and the self-locking head is buckled with the positioning groove when the self-locking mechanism is in the locking state; when the self-locking mechanism is in the unlocking state, the self-locking head is guided by the guide groove and returns back to the circulation groove, and a plurality of positioning grooves are arranged around the rotation center of the roller at intervals.

In some embodiments, the circulation tank comprises a plurality of first tank sections and the guide tank comprises a plurality of second tank sections; each first groove section is correspondingly arranged with each second groove section, each first groove section is arranged around the rotation center of the roller and is sequentially communicated with each second groove section, each second groove section is arranged around the rotation center of the roller and is sequentially communicated with each other, the groove depth of each first groove section is gradually increased along the second rotation direction, the groove depth of each second groove section is gradually reduced along the second rotation direction, and the positioning groove is arranged between each first groove section and the corresponding second groove.

In some embodiments, the self-locking head comprises a self-locking sleeve connected with the self-locking swing arm, a guide post partially inserted into the self-locking sleeve, and an elastic piece with elastic restoring force, wherein the elastic piece is positioned on the self-locking sleeve, one end of the guide post is slidably arranged on the self-locking sleeve and is abutted against the elastic piece, and the other end of the guide post is slidably abutted against the roller.

In some embodiments, the support structure is a telescoping rod, one end of which is connected to the receiving structure.

In a second aspect, a charging pile is provided, which includes the charging storage device.

The beneficial effects of this application lie in: the charging storage device comprises a supporting structure and a storage structure, wherein the supporting structure is provided with a first end and a second end which are arranged along the vertical direction, and the first end is located above the second end and the storage structure is arranged at the first end. When the positioning wire is in a first position state, the positioning wire lifts the charging wire upwards, so that the charging wire is prevented from being drooping on the ground; when the positioning wire is in the second position state, one end of the positioning wire extends towards the ground, and the charging wire is pulled upwards, so that the charging wire is suspended relative to the ground all the time, the charging wire is prevented from being drooping on the ground, the charging wire can be prevented from being wound into a knot, and the reliability and the safety of the use of the charging wire are improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that are required for the description of the embodiments or exemplary techniques will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.

Fig. 1 is a schematic perspective view of a charge storage device according to an embodiment of the present disclosure;

FIG. 2 is an exploded schematic view of the receiving structure of FIG. 1;

FIG. 3 is a schematic view of a partial explosion of the receiving structure in another embodiment of FIG. 1;

FIG. 4 is a schematic front view of FIG. 3;

fig. 5 is a schematic cross-sectional view of the self-locking swing arm and self-locking head of fig. 4.

Wherein, each reference sign in the figure:

100. a charging storage device; 200. a charging wire; 300. a telescopic rod; 301. a first pole segment; 302. a second pole segment; 400. a storage structure; 310. a first end; 320. a second end; 401. a winding housing; 410. a positioning line; 420. a winding assembly; 421. a roller; 422. a clockwork mechanism; 4221. an auxiliary wheel; 4222. a spring; 423. winding the ring groove; 500. a self-locking mechanism; 501. a support plate; 502. a self-locking head; 503. self-locking swing arms; 504. a rotating groove; 430. a guide groove; 440. a circulation tank; 431. a first trough section; 432. a second trough section; 433. a positioning groove;

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. are based on the orientation or positional relationship shown in the drawings, are for convenience of description only, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application, and the specific meaning of the terms described above may be understood by those of ordinary skill in the art as appropriate. The terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "a plurality of" is two or more, unless specifically defined otherwise.

Referring to fig. 1 to 3, the embodiment of the present application provides a charging storage device 100, which is used with a charging wire 200, it can be understood that one end of the charging wire 200 is connected to a charging control cabinet and is connected to a power supply through the charging control cabinet, and a charging gun is disposed at the other end of the charging wire 200.

The charge storage device 100 includes a support structure and a storage structure 400. The charging control cabinet is arranged on the supporting structure.

Referring to fig. 1 to 3, the support structure is disposed along a vertical direction, and has a first end 310 and a second end 320 disposed opposite to the first end 310, wherein the first end 310 is located above the second end 320, and the second end 320 is fixedly disposed on the ground. The receiving structure 400 includes a winding assembly 420 connected to the first end 310 and a positioning wire 410 having one end connected to the charging wire 200.

Wherein the positioning wire 410 has a first position state and a second position state, when the positioning wire 410 is in the first position state, the other end of the positioning wire 410 is wound around and received in the winding assembly 420, and the connection position of the charging wire 200 and the positioning wire 410 is adjacent to the first end 310; therefore, the charging wire 200 can be lifted upwards, the charging wire 200 is prevented from being drooping on the ground or scattering on the ground, and potential safety hazards are prevented from being caused.

Referring to fig. 1 to 3, one end of the positioning wire 410 is pulled and released from the winding assembly 420 under the action of external force, so as to switch the positioning wire 410 to the second position state, and the connection position of the charging wire 200 and the positioning wire 410 is far away from the first end 310, it can be understood that one end of the positioning wire 410 is connected to the first end 310, the other end of the positioning wire 410 extends towards the ground, and the charging wire 200 is pulled upwards, so that the charging wire 200 is prevented from being pulled on the ground in a drool manner, the winding of the charging wire 200 into a knot is prevented, and the reliability and safety of the use of the charging wire 200 are improved.

Referring to fig. 1 to 3, a charging and housing device 100 provided in the embodiment of the present application includes a support structure and a housing structure 400, wherein the support structure has a first end 310 and a second end 320 arranged along a vertical direction, the first end 310 is located above the second end 320, and the housing structure 400 is arranged at the first end 310. When the positioning wire 410 is in the first position state, the positioning wire 410 lifts the charging wire 200 upwards, so as to prevent the charging wire 200 from being pulled on the ground in a drooping way; when the positioning wire 410 is in the second position state, one end of the positioning wire 410 extends towards the ground, and the charging wire 200 is pulled upwards, so that the charging wire 200 is suspended relative to the ground all the time, the charging wire 200 is prevented from being drooping on the ground, the obstacle to the passing of pedestrians is avoided, the charging wire 200 can be prevented from being wound into a knot, and the reliability and the safety of the use of the charging wire 200 are improved.

Optionally, the positioning wire has a maximum tensile length of 3.5 meters.

Referring to fig. 3 to 5, in some embodiments, the winding assembly 420 includes a roller 421 for winding the positioning wire 410 and a spring mechanism 422 connected to the first end 310, the roller 421 is rotatably disposed at the first end 310, and the spring mechanism 422 is used for driving the roller 421 to rotate along a first rotation direction, so as to switch the positioning wire 410 from the second position state to the first position state;

referring to fig. 3 to 5, the roller 421 rotates along a second rotation direction to switch the positioning line 410 from the first position state to the second position state, wherein the first rotation direction is opposite to the second rotation direction.

Referring to fig. 3 to 5, it can be appreciated that the roller 421 rotates along the first rotation direction, so as to take up the positioning wire 410; the roller 421 rotates in the second rotational direction, thereby paying out the positioning wire 410.

Referring to fig. 3 to 5, optionally, the winding assembly 420 further includes a winding housing 401 disposed at the first end 310, the roller 421 and the spring mechanism 422 are both disposed in the winding housing 401, the roller 421 is provided with a winding ring groove 423 along a circumferential side surface thereof, and the positioning wire 410 is a flexible wire and can be wound in the winding ring groove 423. It is understood that the first direction of rotation may be clockwise, and the second direction of rotation counter-clockwise.

It can be appreciated that, when the positioning wire 410 is stretched by an external force, the positioning wire is switched from the first position state to the second position state, the roller 421 rotates along the second rotation direction and drives the spring mechanism 422 to be in the energy storage state, and after the external force is removed, the spring mechanism 422 drives the roller 421 to rotate along the first rotation direction, so that the positioning wire 410 is switched to the first position state.

Referring to fig. 3 to 5, in some embodiments, the spring mechanism 422 includes an auxiliary wheel 4221 rotatably disposed and a spring 4222 wound on the auxiliary wheel 4221, wherein a free end of the spring 4222 is connected to a side surface of the roller 421, and the spring 4222 is partially wound on the roller 421 when the positioning wire 410 is switched from the first position state to the second position state. Alternatively, spring 4222 is a constant force spring.

Referring to fig. 3 to 5, alternatively, the spring 4222 is wound around the auxiliary wheel 4221 in a natural state, when the roller 421 rotates in the second rotation direction under the action of the external force, the spring 4222 is elastically deformed and partially wound around the roller 421, and after the external force disappears, the spring 4222 is reset and rewound around the auxiliary wheel 4221, and simultaneously drives the roller 421 to rotate in the first rotation direction, and simultaneously drives the positioning wire 410 to switch to the first position state.

Referring to fig. 3 to 5, it can be understood that, after the positioning wire 410 is switched to the second position state and stretched in place, the charging gun is plugged into the power receiving device, where the power receiving device charges through the charging gun, and an external force is applied to the positioning wire 410 due to the connection between the charging gun and the power receiving device, so that the positioning wire 410 is in the second position state for a long time. After the charging is completed, the charging gun pulls out of the powered device, the external force applied to the positioning wire 410 disappears, and the spring 4222 drives the roller 421 to rotate in the first rotation direction.

Referring to fig. 3 to 5, in some embodiments, the charge storage device 100 further includes a self-locking mechanism 500, the self-locking mechanism 500 has a locked state and an unlocked state, and when the self-locking mechanism 500 is in the locked state, the self-locking mechanism 500 limits the rolling of the roller 421 along the first rotation direction; when the self-locking mechanism 500 is in the unlocked state, the self-locking mechanism 500 releases the restriction on the rotation of the roller 421.

Referring to fig. 3 to 5, it can be understood that the self-locking mechanism 500 is located in the winding housing 401, and the self-locking mechanism 500 is in a locked state, so that the rolling of the roller 421 along the first rotation direction can be limited, and the positioning wire 410 is in a second position state, so that the acting force between the charging gun and the powered device can be reduced, and fatigue wear of the plugging position of the charging gun and the powered device can be avoided.

In some embodiments, the self-locking mechanism 500 includes a self-locking swing arm 503 rotatably disposed at one end and a self-locking head 502 connected to the other end of the self-locking swing arm 503, where a plane defined by a rotation track of the self-locking swing arm 503 is parallel to a rotation plane of the roller 421. Optionally, the self-locking mechanism 500 further includes a support plate 501 provided with a rotation groove 504, the support plate 501 is connected with the winding housing 401, the support plate 501 is adjacent to the roller 421, the self-locking head 502 is slidably disposed in the rotation groove 504, one end of the self-locking swing arm 503 is rotationally connected with the support plate 501, and the other end of the self-locking swing arm 503 extends to the rotation groove 504 and is connected with the self-locking head 502. When the self-locking mechanism 500 is in the locked state, the self-locking head 502 is fastened to the roller 421 and limits the roller 421 from rolling along the first rotation direction; when the self-locking mechanism 500 is in the unlocking state, the roller 421 drives the self-locking head 502 to slide in the rotation groove 504, and the self-locking head 502 releases the locking with the roller 421, so that the roller 421 can rotate along the first rotation direction.

Referring to fig. 3 to 5, in some embodiments, a circulation groove 440, a positioning groove 433 and a guiding groove 430 are formed on a wheel surface of the roller 421, the circulation groove 440 is adjacent to a rotation center of the roller 421, the guiding groove 430 is far away from the rotation center of the roller 421, two ends of the positioning groove 433 are respectively connected to the guiding groove 430 and the circulation groove 440, and when the self-locking mechanism 500 is in the locked state, the self-locking head 502 is fastened to the positioning groove 433; when the self-locking mechanism 500 is in the unlocked state, the self-locking head 502 is guided by the guide groove 430 and retreats into the circulation groove 440, and the positioning grooves 433 are arranged at intervals around the rotation center of the roller 421.

Referring to fig. 3 to 5, alternatively, the guide groove 430 and the circulation groove 440 are both in a ring groove structure and disposed around the rotation center of the roller 421, and the circulation groove 440 is located in the guide groove 430. When the self-locking mechanism 500 is in the unlocked state, one end of the self-locking head 502 is located in the circulation groove 440, so that the roller 421 can rotate in a circulating manner. When the self-locking mechanism 500 is in the locked state, the self-locking head 502 is located in the positioning groove 433.

Referring to fig. 3-5, in some embodiments, the circulation tank 440 includes a plurality of first tank segments 431 and the guide tank 430 includes a plurality of second tank segments 432; each first groove section 431 is correspondingly arranged with each second groove section 432, each first groove section 431 is arranged around the rotation center of the roller 421 and is sequentially communicated, each second groove section 432 is arranged around the rotation center of the roller 421 and is sequentially communicated, the groove depth of each first groove section 431 is gradually increased along the second rotation direction, the groove depth of each second groove section 432 is gradually reduced along the second rotation direction, and the positioning groove 433 is arranged between each first groove section 431 and the corresponding second groove.

Referring to fig. 3 to 5, it can be understood that each first groove section 431 is connected end to end in sequence, and when the roller 421 rotates along the second rotation direction, the self-locking head 502 can slide through each first groove section 431 in sequence along the second rotation direction; after the self-locking mechanism 500 is stretched in place, the external force disappears, the roller 421 is driven by the spring 4222 to rotate along the first rotation direction, and the self-locking head 502 slides into the positioning groove 433 communicated with the current first groove section 431, so that the self-locking mechanism 500 is in a locked state, and the positioning wire 410 is kept in a stretched length. After the charging is completed, the external force pulls the positioning wire 410 to extend a certain distance again, so that the roller 421 rotates along the second rotation direction, the self-locking head 502 slides into the second groove section 432 communicated with the current positioning groove 433, after the external force disappears, the roller 421 slides along the first rotation direction under the action of the spring 4222, and the self-locking head 502 slides into the corresponding first groove section 431 from the second groove section 432, so that the wire winding of the positioning wire 410 is completed.

Referring to fig. 3 to 5, in some embodiments, the self-locking head 502 includes a self-locking sleeve 5021 connected to the self-locking swing arm 503, a guide post 5022 located in the rotation slot 504 and partially inserted into the self-locking sleeve 5021, and an elastic member 5023 having an elastic restoring force, where the elastic member 5023 is located in the self-locking sleeve 5021, one end of the guide post 5022 is slidably disposed in the self-locking sleeve 5021 and abuts against the elastic member 5023, and the other end of the guide post 5022 is slidably abutted against the roller 421.

Optionally, the elastic member 5023 is a tube spring, and the guide post 5022 compresses the tube spring, so that the tube spring drives the guide post 5022 to keep sliding contact with the roller 421 all the time, and the guide post 5022 can slide in each of the first groove sections 431, each of the second groove sections 432, and each of the positioning grooves 433.

Referring to fig. 1 to 3, in some embodiments, the support structure is a telescopic rod 300, and one end of the telescopic rod 300 is connected to the storage structure 400. Optionally, the length of the telescopic rod 300 may be adjusted, so that the height of the storage structure 400 may be adjusted by the telescopic rod 300, thereby adapting the charging cord 200 to different occasions.

Referring to fig. 1-3, optionally, the telescopic rod 300 comprises a first rod section 301 and a second rod section 302 slidably connected to the first rod section 301, wherein the first end 310 is located on the first rod section 301 and the second end 320 is located on the second rod section 302.

The utility model also provides a charging pile, which comprises a charging storage device 100, wherein the specific structure of the charging storage device 100 refers to the above embodiment, and because the charging pile adopts all the technical schemes of all the embodiments, the charging pile also has all the beneficial effects brought by the technical schemes of the embodiments, and the details are not repeated here.

Referring to fig. 1 to 3, in some embodiments, the charging pile further includes a charging control cabinet connected to the telescopic rod 300, a charging wire 200 connected to the charging control cabinet, and a charging gun connected to the charging wire 200.

Optionally, two storage structures 400 are disposed on the telescopic rod 300, and each positioning wire 410 is connected to one charging wire 200.

The foregoing is merely an alternative embodiment of the present application and is not intended to limit the present application. Various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the scope of the claims of the present application.

Claims (10)

1. A charging storage device for use with a charging cord, the charging storage device comprising:

a support structure having a first end and a second end disposed opposite the first end; and

the storage structure comprises a winding assembly connected with the first end and a positioning wire with one end connected with the charging wire;

the positioning wire is provided with a first position state and a second position state, when the positioning wire is in the first position state, the other end of the positioning wire is wound around and contained in the winding assembly, and the connection position of the charging wire and the positioning wire is adjacent to the first end; one end of the positioning wire is stretched and released from the winding assembly under the action of external force, so that the positioning wire is switched to the second position state, and the connection position of the charging wire and the positioning wire is far away from the first end.

2. The charge storage device of claim 1, wherein: the winding assembly comprises a roller for winding the positioning wire and a spring mechanism connected with the first end, the roller is rotatably arranged at the first end, and the spring mechanism is used for driving the roller to rotate along a first rotation direction so as to enable the positioning wire to be switched from the second position state to the first position state; the roller rotates along a second rotation direction so as to switch the positioning line from the first position state to the second position state, and the first rotation direction is opposite to the second rotation direction.

3. The charge storage device of claim 2, wherein: the spiral spring mechanism comprises an auxiliary wheel and a spiral spring, the auxiliary wheel is rotatably arranged, the spiral spring is wound on the auxiliary wheel, the free end of the spiral spring is connected with the side wheel surface of the idler wheel, and when the positioning line is switched from the first position state to the second position state, the spiral spring is partially wound on the idler wheel.

4. A charge storage device as defined in any one of claims 2 to 3, wherein: the charging storage device further comprises a self-locking mechanism, wherein the self-locking mechanism is provided with a locking state and an unlocking state, and when the self-locking mechanism is in the locking state, the self-locking mechanism limits the rolling of the roller along the first rotation direction; when the self-locking mechanism is in the unlocking state, the self-locking mechanism releases the limit on the rotation of the roller.

5. The charge storage device of claim 4, wherein: the self-locking mechanism comprises a self-locking swing arm with one end rotatably arranged and a self-locking head connected with the other end of the self-locking swing arm, a plane determined by a rotation track of the self-locking swing arm is parallel to a rotation plane of the roller, and when the self-locking mechanism is in the locking state, the self-locking head is buckled with the roller and limits the rolling of the roller along the first rotation direction; when the self-locking mechanism is in the unlocking state, the self-locking head is unlocked from the roller.

6. The charge storage device of claim 5, wherein: the self-locking mechanism comprises a roller, a self-locking head, a self-locking mechanism and a guide groove, wherein the roller surface of the roller is provided with a circulating groove, a positioning groove and a guide groove, the circulating groove is adjacent to the rotation center of the roller, the guide groove is far away from the rotation center of the roller, two ends of the positioning groove are respectively communicated with the guide groove and the circulating groove, and the self-locking head is buckled with the positioning groove when the self-locking mechanism is in a locking state; when the self-locking mechanism is in the unlocking state, the self-locking head is guided by the guide groove and returns back to the circulation groove, and a plurality of positioning grooves are arranged around the rotation center of the roller at intervals.

7. The charge storage device of claim 6, wherein: the circulating groove comprises a plurality of first groove sections, and the guide groove comprises a plurality of second groove sections; each first groove section is correspondingly arranged with each second groove section, each first groove section is arranged around the rotation center of the roller and is sequentially communicated with each second groove section, each second groove section is arranged around the rotation center of the roller and is sequentially communicated with each other, the groove depth of each first groove section is gradually increased along the second rotation direction, the groove depth of each second groove section is gradually reduced along the second rotation direction, and the positioning groove is arranged between each first groove section and the corresponding second groove.

8. The charge storage device of claim 5, wherein: the self-locking head comprises a self-locking sleeve connected with the self-locking swing arm, a guide post partially inserted into the self-locking sleeve and an elastic piece with elastic restoring force, wherein the elastic piece is positioned on the self-locking sleeve, one end of the guide post is slidably arranged on the self-locking sleeve and is abutted against the elastic piece, and the other end of the guide post is slidably abutted against the roller.

9. A charge storage device as defined in any one of claims 1 to 3, wherein: the supporting structure is a telescopic rod, and one end of the telescopic rod is connected with the storage structure.

10. A charging pile comprising the charging storage device according to any one of claims 1 to 9.