A high-protection electric vehicle charging pile

Abstract

The present invention relates to the technical field of electric vehicle charging piles, and particularly relates to a highly protective electric vehicle charging pile. At one end of the parking space close to the charging pile body, there is a movable vehicle stopper. The movable vehicle stopper includes an underground fixed seat and a vehicle stopper body elastically connected to one end inside the fixed seat. Inside the fixed seat, at one end adjacent to the vehicle stopper body, there is a horizontal sliding groove, and a first air storage bag is elastically connected inside the horizontal sliding groove. On the side end of the charging pile body, there is a cable storage bin, and a second air storage bag is arranged inside the cable storage bin. In the initial state, the vehicle stopper body pops up upwards, and the second air storage bag is in an inflated state, causing the charging cable to be wound around the outside of the inflated second air storage bag, so that the charging cable is gradually stored in the cable storage bin. When a vehicle parks in the parking space, by pressing down the vehicle stopper body with the wheel, the second air storage bag is in a relaxed state, and the charging cable can be easily pulled out, which is beneficial for the further efficient, convenient and safe retraction and extension of the charging cable for use.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicle charging piles, and particularly to a highly protective electric vehicle charging pile. Background Art

[0002] With the popularization of new energy vehicles, the demand for the use of electric vehicle charging piles is increasing. The potential safety hazards of vehicle charging piles have to be considered. Especially for the charging piles in open-air parking lots, even if the top of the charging pile body has a sunshade and rainproof canopy, most of the parking spaces are in the open-air state. If the charging cable for public open-air use is not retracted in time, it is easy for the charging cable to bear long-term sunlight and rain, and it is also easy to be accidentally run over by later vehicles when parking. In this regard, in the prior art, for example, a kind of electric vehicle charging pile with a protection function disclosed in Chinese patent document CN114407705A includes a mounting rack, a charging pile body, a charging plug, a winding component, a gun line and a charging gun. The winding component is used to wind the gun line to avoid the gun line being in a mess. A multifunctional charging pile for new energy vehicles disclosed in Chinese patent document CN112277690A uses a winding roller to wind the cable. The above-mentioned winding shaft and winding roller for winding are both connected by a torsion spring. That is, when manually pulling out the charging cable for charging, the elastic action of the torsion spring is overcome. When the charging is completed, the charging gun is inserted back into the charging pile, and the elastic potential energy of the torsion spring is triggered to be released, and the charging cable is automatically retracted. However, it will cause more effort when pulling the cable, and at the same time, the elastic potential energy of the torsion spring is instantaneously released when taking up the cable, and the cable-taking-up speed is relatively fast, lacking buffering. If the existing conventional driving devices such as motors are used to drive the winding shaft and the winding roller to rotate and take up the cable, on the one hand, it is necessary to make a large improvement to the original charging pile structure, resulting in waste of cost and energy consumption. On the other hand, the difficulty of controlling the automatic cable-laying and cable-taking-up nodes is relatively large, especially the control of taking up the cable. If the cable-taking-up is triggered when it is monitored that the charging is completed, when the user has not pulled out the charging gun from the vehicle charging port in time or forgets to do so, triggering the cable-taking-up may cause damage to the charging gun. If the cable-taking-up is triggered when it is monitored that the charging gun is hung back on the charging pile, when the user forgets to hang back the charging gun or directly leaves the charging gun on the ground, the cable-taking-up cannot be triggered. If the cable-taking-up is triggered when the gun is pulled out, the cable-taking-up may trip or bring down the user who is hanging the gun or has not left in time, which is not conducive to the efficient, convenient and safe use of the electric vehicle charging pile. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a highly protective electric vehicle charging pile to solve the problem that the existing vehicle charging piles are not conducive to the further efficient, convenient and safe use of taking up and laying the charging cable.

[0004] Based on the above purpose, the present invention provides a highly protective electric vehicle charging pile, which includes a charging pile body arranged at one end of a parking space. A charging gun is connected to the charging pile body. The charging gun is composed of a charging plug, a grip and a charging cable:

[0005] One end of the parking space close to the charging pile body is provided with a movable vehicle stopper. The movable vehicle stopper includes a buried fixed seat and a vehicle stopper body elastically connected to one end inside the fixed seat. Inside the fixed seat, a horizontal sliding groove is provided at one end adjacent to the vehicle stopper body. A first air storage bag is elastically connected in the horizontal sliding groove. One end of the first air storage bag close to the vehicle stopper body is connected with a pressing block. The pressing block is slidably connected in the horizontal sliding groove. One side of the pressing block is provided with an inclined end face. A hollow groove is provided at the lower end inside the vehicle stopper body. A side notch is opened on the side of the hollow groove facing the horizontal sliding groove.

[0006] A cable storage bin is provided at the side end of the charging pile body. A second air storage bag is arranged in the cable storage bin. The second air storage bag is communicated with the first air storage bag. In the initial state, the vehicle stopper body pops up upward and pushes against the inclined end face of the pressing block, driving the pressing block to move horizontally to compress the first air storage bag, so that the second air storage bag is in an inflated state. The charging cable is wound around the outside of the inflated second air storage bag and gradually stored in the cable storage bin. When a vehicle parks in the parking space, the vehicle stopper body is pressed down by the wheel, and the pressing block penetrates into the hollow groove through the side notch. Through the elastic expansion of the first air storage bag, the second air storage bag is in a relaxed state.

[0007] Preferably, a vertical sliding groove with an open top is provided inside the fixed seat. The vehicle stopper body is inserted into the vertical sliding groove. The horizontal sliding groove is provided at one end of the fixed seat adjacent to the vertical sliding groove. A vertical elastic member is connected between the bottom end of the vehicle stopper body and the inner bottom end of the vertical sliding groove for pushing the vehicle stopper body upward.

[0008] Preferably, in the initial state, the part of the vehicle stopper body extending out of the fixed seat is designed to gradually narrow from bottom to top. The part of the vehicle stopper body extending into the fixed seat slides along the inner side of the fixed seat. The bottom end of the part of the vehicle stopper body extending out of the fixed seat is rotatably connected with a wheel blocking rod. The wheel blocking rod is designed in an inverted U shape. The bottom ends of the wheel blocking rod are respectively rotatably connected to the two long sides of the vehicle stopper body. The top end of the wheel blocking rod is higher than the top end of the vehicle stopper body.

[0009] Preferably, the first air storage bag is designed with openings at both ends. One opening of the first air storage bag is hermetically connected to the side end of the pressing block, and the other opening is hermetically connected to the side end of the horizontal sliding groove. A horizontal elastic member is arranged inside the first air storage bag. The two ends of the horizontal elastic member are respectively connected to the inner side end of the horizontal sliding groove and the outer side end of the pressing block for pushing the pressing block to pop out horizontally. A connecting pipe is connected to the end of the horizontal sliding groove away from the pressing block. One end of the connecting pipe is communicated with the first air storage bag, and the other end is communicated with the second air storage bag.

[0010] Preferably, when the second air storage bag is inflated, it is in a strip shape and multiple strips are arranged in parallel. The charging cable is wound around the outside of each second air storage bag in an S shape.

[0011] Preferably, a plurality of vertical grooves are arranged in parallel in the cable bin, and each second air storage bag is respectively arranged in the vertical groove. A limiting wheel is slidably connected to the outside of the vertical groove. When the second air storage bag expands, it pushes each limiting wheel to slide vertically and disperse, so that the charging cable is wound around the limiting wheels in an S shape.

[0012] Preferably, an outer notch is formed on the outside of the vertical groove, and limiting pieces are elastically connected to both sides of the outer notch. The upper and lower sides of the limiting pieces are inclined, so that one end of the limiting piece facing the middle of the outer notch is designed to gradually converge. A wheel shaft is connected to the inner side of the limiting wheel. The wheel shaft includes a first thick shaft section, a thin shaft section, and a second thick shaft section that are connected end to end in sequence. The first thick shaft section is connected to the inner side of the limiting wheel. The thin shaft section is inserted at the outer notch and is located in the gap between adjacent limiting pieces. The second thick shaft section is inserted into the vertical groove and abuts against one end of the second air storage bag.

[0013] Preferably, an annular airbag is arranged on the outer ring of the charging plug. The annular airbag is communicated with the first air storage bag. When the car stopper body pops up upward, the annular airbag is inflated and expanded to push the charging plug out of the vehicle charging port.

[0014] Preferably, an intermediate airbag is arranged in the charging pile body. The intermediate airbag is communicated with the second air storage bag through a guide air pipe. One of the guide air pipes is attached to the charging cable and is communicated with the annular airbag.

[0015] Preferably, a gun hanging socket is arranged on the charging pile body. An annular groove is arranged on the outer ring of the gun hanging socket. When the charging plug is inserted into the gun hanging socket, the inflated annular airbag abuts and seals in the annular groove.

[0016] The beneficial effects of the present invention are as follows: One end of the parking space close to the charging pile body is provided with a movable car stopper. In the initial state, the car stopper body pops up upward and abuts against the inclined end face of the pressing block, driving the pressing block to move horizontally to compress the first air storage bag. Part of the gas in the first air storage bag is squeezed into the second air storage bag, so that the second air storage bag is in an inflated state, prompting the charging cable to be wound around the outside of the inflated second air storage bag, so that the charging cable is gradually stored in the cable bin. When a car parks in the parking space, the car stopper body moves downward along the fixed seat by the downward pressure of the wheel. Through the elastic expansion of the first air storage bag, the pressing block penetrates into the hollow groove through the side notch. At this time, the first air storage bag is in an expanded and inflated state, and the second air storage bag is in a relaxed state, so that it can be easily pulled out by the user for charging. There is no need to make major improvements to the original charging pile structure, resulting in waste of cost and energy consumption. It realizes efficient automatic retraction and extension of the charging cable, achieves the protection effect on the cable of the charging pile used outdoors, and is very easy to pull the cable. When retracting the cable, there is a certain buffering effect. When the user gets in the car and drives away from the parking space, the automatic cable retraction is triggered, which is safe to use and is conducive to further efficient, convenient and safe retraction and extension of the charging cable. Description of the Drawings

[0017] To more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the attached drawings required in the description of the embodiments or the prior art. Obviously, the attached drawings in the following description are only those of the present invention. For those of ordinary skill in the art, without creative efforts, other attached drawings can also be obtained based on these attached drawings.

[0018] Figure 1 Schematic diagram of the overall structure of the present invention;

[0019] Figure 2 Schematic diagram of the structure of the movable vehicle stopper in the initial state of the present invention;

[0020] Figure 3 Schematic diagram of the structure when the wheel presses down on the movable vehicle stopper in the present invention;

[0021] Figure 4 Schematic diagram of the structure of the movable vehicle stopper when the wheel returns forward in the present invention;

[0022] Figure 5 Schematic diagram of the structure of the wheel blocking rod of the present invention;

[0023] Figure 6 Schematic diagram of the structure of the charging pile body when the charging cable is retracted in the present invention;

[0024] Figure 7 Schematic diagram of the structure of the charging pile body when the charging cable is pulled outwards in the present invention;

[0025] Figure 8 Schematic diagram of the structure of the vertical groove of the present invention;

[0026] Figure 9 Schematic diagram of the structure of the wheel axle of the present invention;

[0027] Figure 10 Schematic diagram of the structure of the second air storage bag of the present invention;

[0028] Figure 11 Schematic diagram of the structure of the existing charging plug;

[0029] Figure 12 Schematic diagram of the structure of the existing charging gun;

[0030] Figure 13 Schematic diagram of the structure of the charging plug of the present invention;

[0031] Figure 14 Schematic diagram of the structure of the charging gun of the present invention.

[0032] The labels in the figure are:

[0033] 1. Charging pile body; 2. Charging gun; 201. Charging plug; 202. Charging cable; 3. Fixed seat; 4. Roadblocker body; 41. Hollow groove; 42. Side notch; 5. Horizontal sliding groove; 6. First air storage bag; 7. Pressing block; 8. Cable storage bin; 9. Second air storage bag; 10. Vertical sliding groove; 11. Vertical elastic member; 12. Blocking wheel rod; 13. Horizontal elastic member; 14. Connecting pipe; 15. Vertical groove; 151. Outer notch; 152. Limiting piece; 16. Limiting wheel; 17. Wheel axle; 171. First thick axle section; 172. Thin axle section; 173. Second thick axle section; 18. Annular airbag; 19. Intermediate airbag; 20. Air duct; 21. Gun hanging socket; 22. Gun hanging seat; 23. Annular groove. Detailed implementation manners

[0034] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with specific embodiments.

[0035] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should have the ordinary meanings understood by those with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar terms used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. The terms such as "including" or "comprising" mean that the elements or objects appearing before this term cover the elements or objects listed after this term and their equivalents, without excluding other elements or objects. The terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left" and "right" are only used to represent relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0036] Such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 6 、 Figure 7 、 Figure 10 、 Figure 11 、 Figure 12As shown in the figure, a highly protective electric vehicle charging pile includes a charging pile body 1 provided at one end of a parking space. A charging gun 2 is connected to the charging pile body 1. The charging gun 2 is composed of a charging plug 201, a grip, and a charging cable 202. An active vehicle stopper is provided at one end of the parking space close to the charging pile body 1. The active vehicle stopper includes a buried fixed seat 3 and a vehicle stopper body 4 elastically connected to one end inside the fixed seat 3. A horizontal sliding groove 5 is provided at one end of the fixed seat 3 adjacent to the vehicle stopper body 4. A first airbag 6 is elastically connected inside the horizontal sliding groove 5. One end of the first airbag 6 close to the vehicle stopper body 4 is connected to a pressing block 7. The pressing block 7 is slidably connected inside the horizontal sliding groove 5. One side of the pressing block 7 is provided with an inclined end face. A hollow groove 41 is provided at the lower end inside the vehicle stopper body 4. A side slot 42 is opened on the side of the hollow groove 41 facing the horizontal sliding groove 5. A cable storage bin 8 is provided at the side end of the charging pile body 1. A second airbag 9 is provided inside the cable storage bin 8. The second airbag 9 is communicated with the first airbag 6. In the initial state, the vehicle stopper body 4 pops up upward and pushes against the inclined end face of the pressing block 7, driving the pressing block 7 to move horizontally to compress the first airbag 6, so that the second airbag 9 is in an inflated and expanded state. The charging cable 202 is wound around the outside of the inflated second airbag 9 and gradually stored in the cable storage bin 8. When a vehicle is parked in the parking space, the vehicle stopper body 4 is pressed down by the wheels, and the pressing block 7 penetrates into the hollow groove 41 along the side slot 42. Through the elastic expansion of the first airbag 6, the second airbag 9 is in a relaxed state.

[0037] Based on the existing structure of an electric vehicle charging pile, the present invention includes a charging pile body 1 provided at one end of a parking space. A charging gun 2 is connected to the charging pile body 1. As Figure 11 、 Figure 12 shown, the charging gun 2 is generally composed of a charging plug 201, a grip, and a charging cable 202. An active vehicle stopper is provided at one end of the parking space close to the charging pile body 1. The active vehicle stopper includes a buried fixed seat 3 and a vehicle stopper body 4 elastically connected to one end inside the fixed seat 3. A horizontal sliding groove 5 is provided at one end of the fixed seat 3 adjacent to the vehicle stopper body 4. A first airbag 6 is elastically connected inside the horizontal sliding groove 5. One end of the first airbag 6 close to the vehicle stopper body 4 is connected to a pressing block 7. The pressing block 7 is slidably connected inside the horizontal sliding groove 5. One side of the pressing block 7 is provided with an inclined end face. Specifically, the pressing block 7 is designed in the shape as Figure 2 shown. A hollow groove 41 is provided at the lower end inside the vehicle stopper body 4. A side slot 42 is opened on the side of the hollow groove 41 facing the horizontal sliding groove 5. At the same time, a cable storage bin 8 is provided at the side end of the charging pile body 1. A second airbag 9 is provided inside the cable storage bin 8. The second airbag 9 is communicated with the first airbag 6. Specifically, both the first airbag 6 and the second airbag 9 adopt existing conventional airbag structures with certain elasticity, and a certain volume of air or other gases are pre-injected into the first airbag 6 and the second airbag 9. In the initial state, as Figure 2As shown, the vehicle stopper body 4 pops up upward and pushes against the inclined end face of the pressing block 7, driving the pressing block 7 to move horizontally to compress the first air storage bag 6. Part of the gas in the first air storage bag 6 is squeezed into the second air storage bag 9, so that the second air storage bag 9 is inflated and expanded, prompting the charging cable 202 to be wound around the outside of the expanded second air storage bag 9, as Figure 6 shown. Thereby, the charging cable 202 is gradually stored in the cable bin 8. When a vehicle parks in the parking space, by pressing down the vehicle stopper body 4 with the wheel, that is, relying on the weight of the vehicle to press down the vehicle stopper body 4, the vehicle stopper body 4 moves downward along the fixed seat 3, as Figure 3 shown. Through the elastic expansion of the first air storage bag 6, the pressing block 7 penetrates into the hollow groove 41 along the side notch 42. At this time, the first air storage bag 6 is in an expanded and inflated state, and the second air storage bag 9 is in a relaxed state. At this time, the user gets out of the vehicle and is ready to take the charging gun 2 on the charging pile body 1. Since the second air storage bag 9 is in a relaxed state at this time, the charging cable 202 stored in the cable bin 8 loses the limit of the second air storage bag 9, as Figure 7 shown, and can be easily pulled out by the user for charging. After charging is completed, the user gets in the vehicle and drives away from the parking space. The vehicle stopper body 4 pops up upward to reset, and the second air storage bag 9 is in an inflated and expanded state, driving the charging cable 202 to automatically wind up. The top end of the buried fixed seat 3 is flush with the ground or slightly lower than the ground. In the initial state, the part of the vehicle stopper body 4 that pops up upward from the fixed seat 3 can adopt the same material, size specification and appearance design as the existing conventional pier-type fixed vehicle stopper, that is, the part of the vehicle stopper body 4 that pops out of the ground is almost indistinguishable from the conventional fixed vehicle stopper in appearance and also plays a similar vehicle blocking and positioning role. And the present invention adopts the special design of the movable vehicle stopper in cooperation with the above related structure design, without making major improvements to the original charging pile structure, resulting in waste of cost and energy consumption, realizing efficient automatic winding and unwinding of the charging cable, achieving the protection effect on the charging cable of the outdoor charging pile, and being very easy to pull the cable, having a certain buffering effect when winding up the cable. When the user gets in the vehicle and drives away from the parking space, the automatic winding is triggered, which is safe to use and is conducive to further efficient, convenient and safe winding and unwinding of the charging cable for use.

[0038] In an embodiment of the present invention, as Figure 2 、 Figure 3 、 Figure 4 shown, a vertical sliding groove 10 with an open top design is provided in the fixed seat 3. The vehicle stopper body 4 is inserted into the vertical sliding groove 10. A horizontal sliding groove 5 is provided at one end adjacent to the vertical sliding groove 10 in the fixed seat 3. One end of the horizontal sliding groove 5 facing the vertical sliding groove 10 is open and communicates with the vertical sliding groove 10. A vertical elastic member 11 is connected between the bottom end of the vehicle stopper body 4 and the inner bottom end of the vertical sliding groove 10. Specifically, multiple groups of existing conventional elastic components such as springs can be used to push up the vehicle stopper body 4 upward.

[0039] In an embodiment of the present invention, asFigure 2 , Figure 3 , Figure 4 , Figure 5 As shown in Figure 2 , Figure 3 , Figure 4 , and Figure 5 , in the initial state, the part of the car stopper body 4 extending outside the fixed seat 3 is designed to gradually narrow from bottom to top. The part of the car stopper body 4 extending into the fixed seat 3 is attached to the inner side of the fixed seat 3 and slides, that is, slides along the inner side wall of the vertical chute 10. The bottom end of the part of the car stopper body 4 extending outside the fixed seat 3 is rotatably connected to a wheel stop rod 12. As Figure 5 shown, the wheel stop rod 12 is designed in an inverted U shape. The bottom ends of the wheel stop rod 12 are respectively rotatably connected to both ends of the long side of the car stopper body 4. The top end of the wheel stop rod 12 is higher than the top end of the car stopper body 4. Thus, when a car is parked in the parking space, as Figure 3 shown, by the wheels pressing down on the car stopper body 4, the car stopper body 4 moves downward along the fixed seat 3 until it is at a height equivalent to the ground. The wheel stop rod 12 also moves downward into the fixed seat 3 and is attached to the inner side wall of the vertical chute 10. Since the top end of the wheel stop rod 12 is higher than the top end of the car stopper body 4, and the wheel stop rod 12 is limited by the inner side wall of the vertical chute 10 and cannot rotate backward, it plays a role in blocking and limiting the wheels, facilitating the wheels to be efficiently pressed to the position of the movable car stopper. Even if the wheels accidentally move backward and cross over the wheel stop rod 12, when the car is operated to move forward and return to its original position, as Figure 4 shown, the wheel stop rod 12 rotates forward freely and abuts against the top end of the car stopper body 4, thus not affecting the normal return of the car.

[0040] In the embodiment of the present invention, as Figure 2 , Figure 3 , Figure 4 shown, the first air storage bag 6 is designed with both ends open. One end opening of the first air storage bag 6 is hermetically connected to the side end of the pressing block 7, and the other end opening is hermetically connected to the side end of the horizontal chute 5. A transverse elastic member 13 is provided inside the first air storage bag 6. Both ends of the transverse elastic member 13 are respectively connected to the inner side end of the horizontal chute 5 and the outer side end of the pressing block 7. Specifically, a plurality of existing conventional elastic components such as springs can be used to push the pressing block 7 to pop out horizontally. The end of the horizontal chute 5 away from the pressing block 7 is connected to a connecting pipe 14. Thus, one end of the connecting pipe 14 is directly communicated with the first air storage bag 6, and the other end is communicated with the second air storage bag 9 by means of underground buried wires or above - ground exposed wires.

[0041] Among them, the second air storage bag 9 can adopt various shapes such as spherical, rectangular, etc. As long as when the second air storage bag 9 is inflated and expanded, it can cause the charging cable 202 to wind around the outside of the expanded second air storage bag 9, thereby driving the charging cable 202 to take up the wire. More preferably, as Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10As shown, when the second airbag 9 expands, it has a strip shape and multiple are arranged in parallel, and the charging cable 202 is wound around the outside of each second airbag 9 in an S shape.

[0042] In an embodiment of the present invention, as Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 shown, multiple vertical grooves 15 are arranged in parallel in the cable storage bin 8, each second airbag 9 is respectively arranged in the vertical groove 15, a limiting wheel 16 is slidably connected to the outside of the vertical groove 15, when the second airbag 9 expands, it pushes each limiting wheel 16 to slide vertically and disperse, so that the charging cable 202 is wound around between each limiting wheel 16 in an S shape.

[0043] In an embodiment of the present invention, as Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 shown, an outer notch 151 is opened on the outside of the vertical groove 15, limiting pieces 152 are elastically connected to both sides of the outer notch 151, the upper and lower sides of the limiting pieces 152 are inclined, so that the end of the limiting piece 152 facing the middle of the outer notch 151 is designed to gradually close. Specifically, the limiting piece 152 can be designed in a trapezoidal shape, and the short side of the trapezoid faces the middle side of the outer notch 151, the limiting pieces 152 on both sides pop out inward, so that the short sides of the opposite limiting pieces 152 are abutted against each other, and a gap is formed between the upper and lower adjacent limiting pieces 152. A wheel shaft 17 is connected to the inner side of the limiting wheel 16. The wheel shaft 17 includes a first thick shaft section 171, a thin shaft section 172 and a second thick shaft section 173 that are connected end to end in sequence. The first thick shaft section 171 is connected to the inner side of the limiting wheel 16, the thin shaft section 172 is inserted at the outer notch 151 and is located in the gap between the adjacent limiting pieces 152, the second thick shaft section 173 is inserted into the vertical groove 15 and abuts against one end of the second airbag 9. When the second airbag 9 is inflated and expands, it is blocked by the limiting piece 152 to prevent it from expanding outside the vertical groove 15. Thus, the second airbag 9 expands along the length direction in the vertical groove 15, pushes the second thick shaft section 173 to slide vertically, and the thin shaft section 172 pushes the inclined side of the limiting piece 152 to successively cross each limiting piece 152. Through the vertical sliding and dispersion of each limiting wheel 16, the charging cable 202 is wound around between each limiting wheel 16 in an S shape.

[0044] Among them, the existing conventional charging gun 2 structure such as Figure 11 , Figure 12 shown can be adopted. More preferably, as Figure 13 , Figure 14As shown, an annular airbag 18 can be provided on the outer ring of the charging plug 201. The annular airbag 18 is communicated with the first air storage bag 6. Thus, when a vehicle parks in the parking space, the wheel presses down the vehicle stopper body 4. At this time, the first air storage bag 6 is in an expanded and inflated state, and the second air storage bag 9 and the annular airbag 18 are in a flat and relaxed state. Thus, the charging plug 201 can be normally inserted into the vehicle charging port for charging. After the charging is completed, even if the user forgets to unplug the gun and directly drives away from the parking space, at this time, the vehicle stopper body 4 pops up and resets upward, so that both the second air storage bag 9 and the annular airbag 18 are in an inflated and expanded state. The annular airbag 18 instantaneously expands to help push the charging plug 201 out of the vehicle charging port, and the second air storage bag 9 gradually drives the charging cable 202 to automatically wind up. Even if the gun hanging operation is not performed, the charging plug 201 is wound up to the vicinity of the charging pile body 1 through automatic winding, protected by the ceiling of the charging pile, avoiding long-term exposure to the sun and rain, and also avoiding being accidentally rolled over by a later vehicle when parking. And only when the user gets in the car and drives away from the parking space to make the vehicle stopper body 4 pop up upward can the automatic winding be triggered, avoiding that the automatic winding may trip or bring the user who is hanging the gun or has not left in time. This is beneficial to the overall high protection of the charging pile and the further efficient, convenient and safe use of winding and unwinding the charging cable.

[0045] In an embodiment of the present invention, as Figure 2 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 13 , Figure 14 As shown, an intermediate airbag 19 is provided in the charging pile body 1. Specifically, the intermediate airbag 19 can be provided at the bottom end of the charging pile body 1. The first air storage bag 6 ventilates to the intermediate airbag 19 through the connecting pipe 14. The intermediate airbag 19 is communicated with the second air storage bag 9 through the air guide pipe 20. Optionally, the intermediate airbag 19 is respectively communicated with the second air storage bags 9 in each vertical groove 15 through a plurality of air guide pipes 20. One of the air guide pipes 20 can be attached to the charging cable 202 and communicated with the annular airbag 18. When the vehicle stopper body 4 pops up and resets upward, the annular airbag 18 instantaneously inflates and expands to push the charging plug 201 out of the vehicle charging port. And due to the influence of the winding resistance, the second air storage bag 9 gradually inflates and expands, gradually driving the charging cable 202 to wind up until the vehicle stopper body 4 completely pops up and resets, completing the winding.

[0046] In an embodiment of the present invention, as Figure 6 , Figure 7 , Figure 13 , Figure 14As shown, a gun hanging socket 21 is provided on the charging pile body 1. Specifically, a gun hanging seat 22 is recessed on the charging pile body 1, and the gun hanging socket 21 is arranged at the recess of the gun hanging seat 22. When hanging the gun, it is beneficial to further protect the charging plug 201 from dust and rain. Among them, an annular groove 23 is provided on the outer ring of the gun hanging socket 21. When the charging plug 201 is inserted into the gun hanging socket 21, until the user's car drives away from the parking space, the inflated annular airbag 18 abuts and seals in the annular groove 23, playing a role in further stable insertion, and further tight sealing to prevent dust, rain, moisture, insects, etc., so as to facilitate the overall high protection of the charging pile and the further efficient, convenient and safe retraction and use of the charging cable.

[0047] Among them, the inflated annular airbag 18 can be designed to have the same height as the charging plug 201 or slightly lower than the height of the charging plug 201. The instantaneous inflation impact force is sufficient to loosen the charging plug 201, just to avoid pulling and damaging the gun head when directly driving away the car.

[0048] Those of ordinary skill in the art should understand that the discussion of any above embodiment is only exemplary and is not intended to imply that the scope of the present invention is limited to these examples; under the idea of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity.

Claims

1. A highly protective electric vehicle charging pile, including a charging pile body (1) arranged at one end of a parking space. A charging gun (2) is connected to the charging pile body (1). The charging gun (2) consists of a charging plug (201), a grip, and a charging cable (202), and is characterized in that: An active vehicle stopper is provided at one end of the parking space close to the charging pile body (1). The active vehicle stopper includes a buried fixed seat (3) and a vehicle stopper body (4) elastically connected to one end inside the fixed seat (3). A horizontal sliding groove (5) is provided at one end of the fixed seat (3) adjacent to the vehicle stopper body (4). A first air storage bag (6) is elastically connected in the horizontal sliding groove (5). One end of the first air storage bag (6) close to the vehicle stopper body (4) is connected to a pressing block (7). The pressing block (7) is slidably connected in the horizontal sliding groove (5). One side of the pressing block (7) is provided with an inclined end face. A hollow groove (41) is provided at the lower end inside the vehicle stopper body (4). A side slot opening (42) is provided on one side of the hollow groove (41) facing the horizontal sliding groove (5); A cable storage bin (8) is provided at the side end of the charging pile body (1). A second air storage bag (9) is provided in the cable storage bin (8). The second air storage bag (9) is communicated with the first air storage bag (6). In the initial state, the vehicle stopper body (4) pops up upward and pushes against the inclined end face of the pressing block (7), driving the pressing block (7) to move horizontally to compress the first air storage bag (6), so that the second air storage bag (9) is in an inflated state. The charging cable (202) is wound around the outside of the inflated second air storage bag (9) and is gradually stored in the cable storage bin (8). When a vehicle parks in the parking space, the vehicle stopper body (4) is pressed down by the wheels. The pressing block (7) penetrates into the hollow groove (41) along the side slot opening (42). Through the elastic expansion of the first air storage bag (6), the second air storage bag (9) is in a relaxed state; A vertical sliding groove (10) with an open top is provided in the fixed seat (3). The vehicle stopper body (4) is inserted into the vertical sliding groove (10). The horizontal sliding groove (5) is provided at one end of the fixed seat (3) adjacent to the vertical sliding groove (10). A vertical elastic member (11) is connected between the bottom end of the vehicle stopper body (4) and the inner bottom end of the vertical sliding groove (10) for pushing up the vehicle stopper body (4); In the initial state, the part of the vehicle stopper body (4) extending out of the fixed seat (3) is designed to gradually narrow from bottom to top. The part of the vehicle stopper body (4) extending into the fixed seat (3) is attached to the inner side of the fixed seat (3) and slides. The bottom end of the part of the vehicle stopper body (4) extending out of the fixed seat (3) is rotatably connected to a vehicle blocking rod (12). The vehicle blocking rod (12) is designed in an inverted U shape. The bottom ends of the vehicle blocking rod (12) are respectively rotatably connected to both long sides of the vehicle stopper body (4). The top end of the vehicle blocking rod (12) is higher than the top end of the vehicle stopper body (4); The first airbag (6) is designed with openings at both ends. One end opening of the first airbag (6) is hermetically connected to the side end of the pressing block (7), and the other end opening is hermetically connected to the side end of the transverse sliding groove (5). A transverse elastic member (13) is provided inside the first airbag (6), and both ends of the transverse elastic member (13) are respectively connected to the inner side end of the transverse sliding groove (5) and the outer side end of the pressing block (7) for pushing the pressing block (7) to pop out laterally. A connecting pipe (14) is connected to the end of the transverse sliding groove (5) far from the pressing block (7). One end of the connecting pipe (14) is communicated with the first airbag (6), and the other end is communicated with the second airbag (9). An annular airbag (18) is provided on the outer circumference of the charging plug (201). The annular airbag (18) is communicated with the first airbag (6). When the vehicle stopper body (4) pops up upward, the annular airbag (18) is inflated to push the charging plug (201) out of the vehicle charging port. A gun hanging socket (21) is provided on the charging pile body (1). An annular groove (23) is provided on the outer circumference of the gun hanging socket (21). When the charging plug (201) is inserted into the gun hanging socket (21), the inflated annular airbag (18) abuts and seals in the annular groove (23).

2. The high-protection electric vehicle charging pile according to claim 1, wherein When the second airbag (9) expands, it is in a strip shape and multiple are arranged in parallel. The charging cable (202) is wound around the outside of each second airbag (9) in an S shape.

3. The high-protection electric vehicle charging pile according to claim 2, wherein A plurality of vertical grooves (15) are arranged in parallel in the cable bin (8). Each second airbag (9) is respectively arranged in the vertical groove (15). A limiting wheel (16) is slidably connected to the outside of the vertical groove (15). When the second airbag (9) expands, it pushes each limiting wheel (16) to slide vertically and disperse, so that the charging cable (202) is wound around between each limiting wheel (16) in an S shape.

4. The high-protection electric vehicle charging pile according to claim 3, wherein An outer slot opening (151) is formed on the outside of the vertical groove (15). Limiting pieces (152) are elastically connected to both sides of the outer slot opening (151). The upper and lower sides of the limiting pieces (152) are inclined, so that the end of the limiting piece (152) facing the middle of the outer slot opening (151) is designed to gradually close. A wheel shaft (17) is connected to the inner side of the limiting wheel (16). The wheel shaft (17) includes a first thick shaft section (171), a thin shaft section (172), and a second thick shaft section (173) that are connected end to end in sequence. The first thick shaft section (171) is connected to the inner side of the limiting wheel (16). The thin shaft section (172) is inserted at the outer slot opening (151) and is located in the gap between adjacent limiting pieces (152). The second thick shaft section (173) is inserted into the vertical groove (15) and abuts against one end of the second airbag (9).

5. A highly protective electric vehicle charging pile according to claim 1, wherein, An intermediate airbag (19) is provided inside the charging pile body (1). The intermediate airbag (19) is communicated with the second airbag (9) through an air duct (20). One of the air ducts (20) is attached to the charging cable (202) and is communicated with the annular airbag (18).

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