Anti-dragging charging pile for new energy charging gun

Abstract

The invention provides an anti-dragging charging pile for a new energy charging gun, and relates to the technical field of new energy charging piles. An anti-dragging charging pile of a new energy charging gun comprises a charging pile body and the charging gun, the charging gun comprises a gun tail part, a gun body part and a gun head part, and an axial deflection angle is formed between the gun tail part and the gun body part; an automatic ejection mechanism is arranged on the outer side of the gun body part in a sleeving mode and elastically slides in the axial direction of the gun body part, when the gun tail part is dragged by lateral force, the gun tail part can deflect relative to the gun body part, and then the limiting assembly and the abutting plate are driven to deviate, so that the gun tail part is ejected out of the gun body part. The autonomous elastic mechanism is triggered to release the locking state and eject towards the vehicle body, and in the process, the autonomous ejection mechanism drives the switch to displace, so that the charging gun and the vehicle body are synchronously unlocked, and then the charging gun is autonomously separated from the vehicle body under the displacement action of the autonomous ejection mechanism; and the charging gun and the charging pile are prevented from being damaged due to dragging when the vehicle runs.

Description

Technical Field

[0001] This application relates to the technical field of new energy charging piles. Specifically, it relates to a new energy charging gun anti-dragging charging pile. Background Art

[0002] When using new energy charging piles, it often happens that the driver forgets to unplug the charging gun and directly drives away, resulting in the charging gun and the charging pile being strongly dragged and damaged. Although existing charging piles also have an anti-dragging function, they can only solve the dragging phenomenon caused by the pulling force along the length direction of the charging gun. As is well known, the charging ports of new energy vehicles are not all set at the front and rear ends of the vehicle body. There are also many set on one side of the vehicle body. At this time, if the charging gun is not unplugged and the vehicle drives away directly, the charging gun will be subjected to a lateral dragging force. In this way, the existing anti-dragging charging piles can hardly make the charging gun automatically detach from the vehicle body, and still cause damage between the charging gun and the charging pile. Summary of the Invention

[0003] This application aims to solve at least one of the technical problems existing in the prior art. For this purpose, this application provides a new energy charging gun anti-dragging charging pile, which includes a charging pile and a charging gun that can actively retract towards the charging pile. A cable is connected between the charging gun and the charging pile. The charging gun includes a gun tail part, a gun body part, and a gun head part that are connected to each other. A corrugated pipe is connected between the gun tail part and the gun body part. The gun body part is elastically inserted into the gun tail part, and there is an axial yaw angle between the gun tail part and the gun body part; a switch is provided on the gun body part, and the switch undergoes a radial displacement on the gun body part; an automatic ejection mechanism is sleeved outside the gun body part, and the automatic ejection mechanism elastically slides along the axial direction of the gun body part. During the sliding process of the automatic ejection mechanism, the switch is pressed to displace towards the inside of the gun body part and makes the charging gun and the new energy vehicle in a contact locking state; a plurality of positioning parts are provided at one end of the automatic ejection mechanism. The positioning parts include a plurality of first hinge blocks and second hinge blocks arranged circumferentially. The first hinge block and the second hinge block are hinged to each other, and the first hinge block and the second hinge block are hinged to themselves. A semi-overlapping state and a straightened state are formed between the first hinge block and the second hinge block; a limiting mechanism for triggering and limiting the displacement of the automatic ejection mechanism is provided between the gun tail part and the gun body part. The limiting mechanism includes two limiting components symmetrically arranged on both sides of the gun tail part, and a contact plate sleeved on the gun body part in a sliding manner. The limiting component is elastically inserted into the gun tail part, and the other end of the limiting component abuts against the contact plate. The contact plate elastically abuts against one end of the automatic ejection mechanism and forms a semi-overlapping state between the first hinge block and the second hinge block. Notches are respectively provided on both sides of the position where the contact plate contacts the limiting component.

[0004] Preferably, one end of the gun tail part facing the gun body part is provided with an end ring. A flange is arranged on one side of the end ring extending into the gun tail part, and the flange faces the gun tail part. Two baffles are symmetrically and fixedly connected to one side of the end ring located outside the gun tail part. Three elastic columns are circumferentially and fixedly connected to the end ring. One end of the corrugated pipe is coaxially and fixedly connected to the end ring.

[0005] Preferably, one end of the gun body part facing the gun tail part is provided with an I-shaped cylinder. The I-shaped cylinder is partially inserted into the end ring in a movable manner. A first spring is arranged between the end ring and a part of the I-shaped cylinder located inside the gun tail part, and the first spring is sleeved on the I-shaped cylinder.

[0006] Preferably, a first retaining ring and a second retaining ring are coaxially and fixedly sleeved on the outer side of the gun body part. A handle is fixedly connected to the outer wall of the gun body part along the axial direction. A retaining block is fixedly connected to the handle, and the switch is arranged between the first retaining ring and the second retaining ring.

[0007] Preferably, the switch includes a pressing end radially inserted into the side wall of the gun body part. One end of the pressing end extending into the gun body part is fixedly connected to a transmission block. One end of the transmission block is fixedly connected to a limiting end. Limiting blocks are symmetrically arranged on both sides of the limiting end, and the limiting blocks are slidably limited between the limiting end and the end face of the gun body part facing the gun head part. One end of the limiting end extends out of the gun body part and is provided with a locking protrusion. A plurality of guide posts are slidably inserted into the transmission block, and the plurality of guide posts are fixedly connected to the inner side of the gun body part. A second spring for resetting the pressing end is sleeved on the guide posts. A wedge-shaped surface is arranged at one end of the pressing end away from the transmission block, and the wedge-shaped surface faces the first retaining ring.

[0008] Preferably, the self-ejecting mechanism includes an abutting ring, a plurality of guide rods and an abutting end plate. The abutting ring is slidably sleeved on the gun body part and is located on the side of the second retaining ring facing the gun head part; the plurality of guide rods are circumferentially and uniformly arranged and fixedly connected to the abutting ring, and the guide rods are respectively slidably inserted into the first retaining ring and the second retaining ring; one end of the abutting end plate abuts against the abutting plate, and one end of the abutting end plate is elastically inserted into the guide rod and is hinged to the second hinge block; the first hinge block is hinged to the end face of the guide rod.

[0009] Preferably, a third spring is sleeved on the guide rod. One end of the third spring abuts against the abutting ring, and the other end of the third spring abuts against the second retaining ring. A limiting end block is coaxially fixedly connected to one end of the guide rod, and the limiting end block is hinged to the first hinge block. A sliding cavity is coaxially arranged in the guide rod, and a fourth spring is axially embedded in the sliding cavity.

[0010] Preferably, an abutment rod is coaxially fixed to one side of the abutment end plate, and the abutment rod is inserted into the sliding cavity in a limited sliding manner and abuts against the fourth spring.

[0011] Preferably, the positioning member is located between the abutment plate and the first retaining ring, and when the positioning member expands radially, the first retaining ring causes motion interference with the autonomous pop-up mechanism, and when the positioning member expands axially, the first retaining ring does not cause motion interference with the autonomous pop-up mechanism.

[0012] Preferably, the limiting assembly includes a trigger rod inserted into the baffle, a fifth spring is sleeved on the trigger rod, and a first positioning ring and a second positioning ring are coaxially fixed to the trigger rod, wherein the first positioning ring is close to the abutment plate, and the second positioning ring is located at the end of the trigger rod away from the abutment plate, both ends of the fifth spring abut against the baffle and the first positioning ring, respectively, and the end of the trigger rod abutting against the abutment plate is hemispherically arranged.

[0013] The beneficial effects of the present invention are: 1. By utilizing the axial deflection capability between the gun tail and the gun body, when the gun tail is dragged by lateral force, the gun tail will deflect relative to the gun body, which will then cause deviation between the limiting component and the abutment plate, triggering the autonomous elastic mechanism to release the lock state and eject in the direction of the vehicle body. During this process, the autonomous ejection mechanism drives the switch displacement to synchronously release the lock between the charging gun and the vehicle body, and then the charging gun is automatically separated from the vehicle body under the displacement of the autonomous ejection mechanism, avoiding damage caused by dragging between the charging gun and the charging pile due to vehicle driving; 2. The elastic connection between the gun tail and the gun body is used to keep the gun tail and the gun body stable without force, and the elastic force forces the limiting component and the abutment plate to abut against each other, thereby ensuring the locking state of the autonomous ejection mechanism; 3. The autonomous elastic mechanism is locked or unlocked on the gun body by utilizing the deformation between the first hinge block and the second hinge block that are hinged to each other in the positioning member.

[0014] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] To more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0016] Figure 1 is a schematic diagram of the overall structure of a new energy charging gun anti-dragging charging pile according to an embodiment of the present application; Figure 2 is a schematic diagram of the overall structure of a charging gun according to an embodiment of the present application; Figure 3 is a schematic diagram of a partial structure of a charging gun according to an embodiment of the present application; Figure 4 is a partial structure sectional view of a charging gun according to an embodiment of the present application; Figure 5 is an exploded view of a partial structure of a charging gun according to an embodiment of the present application; Figure 6 is according to an embodiment of the present application Figure 5 an enlarged schematic view of A therein; Figure 7 is a sectional view of the structure of a switch according to an embodiment of the present application; Figure 8 is an exploded view of the structure of an automatic ejection mechanism according to an embodiment of the present application; Figure 9 is according to an embodiment of the present application Figure 8 an enlarged schematic view of B therein; Figure 10 is a schematic diagram of the structure of a limiting mechanism according to an embodiment of the present application; Figure 11 is an exploded view of the structure of a ground-falling protection member according to an embodiment of the present application; Figure 12 is an exploded view of a partial structure of a recovery protection member according to an embodiment of the present application; Figure 13 is according to an embodiment of the present application Figure 12 an enlarged schematic view of C therein.

[0017] Icons: 1. Charging pile; 2. Charging gun; 21. Gun tail; 211. End ring; 212. Flange; 213. Baffle; 214. Elastic column; 22. Gun body; 221. I-shaped cylinder; 222. First spring; 223. First retaining ring; 224. Second retaining ring; 225. Handle; 226. Stop block; 23. Gun head; 24. Cable; 25. Bellows; 26. Switch; 261. Pressing end; 262. Transmission block; 263. Limiting end; 264. Limiting block; 265. Guide post; 266. Second spring; 267. Wedge surface; 3. Self-ejecting mechanism; 31. Contact ring; 32. Guide rod; 321. Third spring; 322. Limiting end block; 323. Sliding cavity; 324. Fourth spring; 33. Contact end plate; 331. Contact rod; 34. Positioning member; 341. First hinge block; 342. Second hinge block; 4. Limiting mechanism; 41. Limiting component; 411. Trigger rod; 412. Fifth spring; 413. First positioning ring; 414. Second positioning ring; 42. Contact plate; 421. Notch; 5. Drop protection part; 51. First triangular frame; 52. Second triangular frame; 53. Slip ring; 531. Slide block; 6. Recovery protection part; 61. L-shaped positioning plate; 62. Roller; 621. Positioning rod; 622. Sixth spring. Detailed implementation mode

[0018] Next, the technical solutions in the embodiments of the present application will be described with reference to the accompanying drawings in the embodiments of the present application.

[0019] To make the purpose, technical solution, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0020] Example 1, as Figures 1 - 13 shown, a new energy charging gun anti-dragging charging pile according to an embodiment of the present application includes a charging pile 1 and a charging gun 2 that can actively retract towards the charging pile 1. A cable 24 is connected between the charging gun 2 and the charging pile 1. The charging gun 2 includes a gun tail 21, a gun body 22, and a gun head 23 that are connected to each other. It should be noted that in the specific embodiment of the present application, an automatic rewinding device (the working principle is well-known in the prior art and will not be elaborated here) is provided inside the charging pile 1 for retracting the charging gun 2 towards the charging pile 1 by rewinding the cable 24 after the charging gun 2 drops to the ground. The electrical connection between the cable 24 and the charging gun 2 is a well-known prior art. In the specific embodiment of the present application, as Figure 4As shown, for reference only, the relevant electrical components are not elaborated in this application.

[0021] Specifically, as Figures 3 - 5 shown, a corrugated pipe 25 is connected between the gun tail part 21 and the gun body part 22. The gun body part 22 is elastically inserted into the gun tail part 21, and there is a certain axial yaw angle between the gun tail part 21 and the gun body part 22. It can be understood that, as Figure 1 shown, when the charging interface of the vehicle is on the side of the vehicle body, if the charging gun 2 is not pulled out and the vehicle starts to drive away, at this time, the charging gun 2 will be subjected to a lateral pulling force exerted by the cable 24, and the axial yaw angle between the gun tail part 21 and the gun body part 22 can make the gun tail part 21 deflect to a certain extent relative to the gun body part 22 when the cable 24 exerts a pulling force.

[0022] In a specific embodiment of the present application, a switch 26 is provided on the gun body part 22. The switch 26 has a radial displacement on the gun body part 22 to facilitate unlocking the charging gun 2 from the vehicle body.

[0023] An automatic ejection mechanism 3 is sleeved outside the gun body part 22. The automatic ejection mechanism 3 elastically slides along the axial direction of the gun body part 22. During the sliding process of the automatic ejection mechanism 3, it presses the switch 26 to displace towards the inside of the gun body part 22 and locks the charging gun 2 with the new energy vehicle. It can be understood that through the elastic sliding of the automatic ejection mechanism 3 on the gun body part 22, when it touches the vehicle body, it will exert a reverse force on the charging gun 2, so that the charging gun 2 can automatically disengage from the vehicle body.

[0024] One end of the automatic ejection mechanism 3 is provided with a plurality of positioning members 34. The positioning members 34 include a plurality of first hinge blocks 341 and second hinge blocks 342 arranged circumferentially. The first hinge block 341 and the second hinge block 342 are hinged to each other, and the first hinge block 341 and the second hinge block 342 are hinged to themselves. A semi-overlapping state and a straightened state can be formed between the first hinge block 341 and the second hinge block 342, as Figure 8 and Figure 9 shown, that is, the first hinge block 341 and the second hinge block 342 can make the components at both ends have an axial relative displacement through their own hinges, and use their own deformation to lock and unlock the automatic ejection mechanism 3 on the gun body part 22.

[0025] A limiting mechanism 4 for triggering and limiting the displacement of the autonomous ejection mechanism 3 is arranged between the gun tail 21 and the gun body 22. The limiting mechanism 4 includes two limiting components 41 symmetrically arranged on both sides of the gun tail 21, and abutment plates 42 slidably sleeved on the gun body 22. The limiting components 41 are elastically inserted into the gun tail 21, and the other end of the limiting components 41 abuts against the abutment plates 42. The abutment plates 42 elastically abut against one end of the autonomous ejection mechanism 3 and form a semi-closed gap between the first hinge block 341 and the second hinge block 342. In an overlapping shape, notches 421 are respectively provided on both sides of the contact position between the abutment plate 42 and the limiting assembly 41. It can be understood that when the tail portion 21 of the gun is equivalent to the gun body portion 22 and an axial deflection occurs, the limiting assembly 41 will be offset from the original position abutting against the abutment plate 42 to the notch 421, so that the abutment plate 42 loses its abutment force, and then the positioning member 34 loses its extrusion force and undergoes radial shrinkage deformation, so that the autonomous ejection mechanism 3 triggers an axial ejection displacement when the gun body portion 22 is unlocked.

[0026] Specifically, Figures 3 - 5 As shown, an end ring 211 is provided at one end of the gun tail portion 21 facing the gun body portion 22, a flange 212 is provided on the side of the end ring 21 extending into the gun tail portion 21, the flange 212 faces the gun tail portion 21, and two baffles 213 are symmetrically fixedly connected to one side of the end ring 211 located on the outer side of the gun tail portion 21, three elastic columns 214 are circumferentially fixedly connected to the end ring 211, and one end of the bellows 25 is coaxially fixedly connected to the end ring 211.

[0027] An I-shaped tube 221 is disposed at one end of the gun body 22 facing the gun tail 21 , and the I-shaped tube 221 is partially movably plugged into the end ring 211 . It should be noted here that a certain angle of axial deflection can occur between the I-shaped tube 221 and the end ring 211 .

[0028] A first spring 222 is disposed between the end ring 211 and a portion of the I-shaped tube 221 located inside the gun tail 21 . The first spring 222 is sleeved on the I-shaped tube 221 . The flange 212 can play a certain axial positioning effect on the first spring 222 .

[0029] It should be noted that the elastic column 214 is inserted into one end of the I-shaped tube 221 located outside the gun tail portion 21, so that the gun tail portion 21 that is not subjected to the drag force remains fixed relative to the gun body portion 22. It can be understood that when the gun tail portion 21 is axially deflected relative to the gun body portion 22, the elastic column 214 will be subjected to force and axially twisted, and then can fall off the I-shaped tube 221.

[0030] The outer coaxial fixed sleeve of the gun body 22 is provided with a first retaining ring 223 and a second retaining ring 224 , the outer wall of the gun body 22 is axially fixed with a handle 225 , the handle 225 is fixed with a retaining block 226 , and the switch 26 is arranged between the first retaining ring 223 and the second retaining ring 224 .

[0031] As shown Figures 5 - 7 in the figure, the switch 26 includes a pressing end 261 radially inserted into the side wall of the gun body 22 (it should be noted here that the pressing end 261 is radially limited and slides on the side wall of the gun body 22, that is, the pressing end 261 will not be displaced entirely to the inside of the gun body 22). One end of the pressing end 261 extending into the gun body 22 is fixedly connected with a transmission block 262. One end of the transmission block 262 is fixedly connected with a limiting end 263. Limiting blocks 264 are symmetrically arranged on both sides of the limiting end 263. The limiting blocks 264 are limited and slide between the end face of the gun body 22 facing the gun head 23. One end of the limiting end 263 extends out of the gun body 22 and is provided with a locking protrusion. A plurality of guide posts 265 are slidably inserted into the transmission block 262. The plurality of guide posts 265 are fixedly connected to the inside of the gun body 22. A second spring 266 for resetting the pressing end 261 is sleeved on the guide posts 265. Thus, it can be understood that when the pressing end 261 is subjected to a radial pressure, it will displace radially towards the inside of the gun body 22 and synchronously drive the transmission block 262 to displace synchronously. In this way, the limiting end 263 will displace synchronously and in the same direction. The guide posts 265 play a guiding role for the transmission block 262, and the second spring 266 plays a role in resetting the pressing end 261.

[0032] Specifically, as Figure 7 shown in the figure, a wedge surface 267 is provided at one end of the pressing end 261 away from the transmission block 262. The wedge surface 267 faces the first retaining ring 223. It can be understood that when the self-ejecting mechanism 3 axially displaces on the gun body 22, the existence of the wedge surface 267 will cause the pressing end 261 to be subjected to a radial pressure during the displacement of the self-ejecting mechanism 3, ensuring that the pressing end 261 can displace radially.

[0033] As Figure 8 and Figure 9 shown in the figure, the self-ejecting mechanism 3 includes a contact ring 31, a plurality of guide rods 32 and a contact end plate 33. The contact ring 31 is slidably sleeved on the gun body 22 and is located on the side of the second retaining ring 224 facing the gun head 23. It should be noted here that a buffer pad is provided on the side of the contact ring 31 facing the vehicle body to prevent damage to the vehicle body caused by the elastic impact of the contact ring 31; the plurality of guide rods 32 are circumferentially and evenly arranged and fixedly connected to the contact ring 31. The guide rods 32 are respectively slidably inserted into the first retaining ring 223 and the second retaining ring 224; one end of the contact end plate 33 abuts against the contact plate 42. One end of the contact end plate 33 is elastically inserted into the guide rods 32 and is hinged to the second hinge block 342; the first hinge block 341 is hinged to the end face of the guide rod 32.

[0034] It should be noted that in the specific embodiments of the present application, according to the actual shape of the charging gun 2, the positioning member 34 is disposed at least at the ends of 2 of the guiding rods 32 to prevent insufficient locking force formed by the positioning member 34.

[0035] Wherein, a third spring 321 is sleeved on the guiding rod 32. One end of the third spring 321 abuts against the abutting ring 31, and the other end of the third spring 321 abuts against the second retaining ring 224. It can be understood that when the entire self - ejecting mechanism 3 is in the locked state, the third spring 321 is in a compressed state. Therefore, the third spring 321 mainly provides the ejection power for the self - ejecting mechanism 3. One end of the guiding rod 32 is coaxially and fixedly connected with a limiting end block 322, and the limiting end block 322 is hinged to the first hinge block 341. It should be noted that in the specific embodiments of the present application, the limiting end block 322 can smoothly slide past the first retaining ring 223 and is limited by the second retaining ring 224, which not only ensures that the self - ejecting mechanism 3 will not disengage from the gun body part 22 when the locked state is released, but also limits the axial displacement stroke of the entire self - ejecting mechanism 3. At the same time, the limiting end block 322 on the side of the pressing end 261 slidably cooperates with the wedge - shaped surface 267 thereon. A sliding cavity 323 is coaxially arranged in the guiding rod 32, and a fourth spring 324 is axially installed in the sliding cavity 323.

[0036] One side of the abutting end plate 33 is coaxially fixedly connected with an abutting rod 331. The abutting rod 331 is limited and slidably inserted into the sliding cavity 323 and abuts against the fourth spring 324. It can be understood that when the self - ejecting mechanism 3 is in the locked state, at this time, the abutting rod 331 squeezes the fourth spring 324. Further, it can be understood that at this time, the positioning member 34 will be squeezed at both ends, so that the multiple first hinge blocks 341 and the second hinge blocks 342 therein will form a semi - overlapping state, that is, the radial diameter is the largest at this time, and the circumferential distance between the components at both ends is the shortest. On the contrary, when the squeezing force at both ends is lost, under the reset action of the fourth spring 324, the abutting end plate 33 will move away from the guiding rod 32. At this time, the first hinge block 341 and the second hinge block 342 will be in a straightened state, that is, the radial diameter is the smallest at this time, and the axial distance between the components at both ends is the largest.

[0037] It should be noted that the positioning member 34 is located between the abutting plate 42 and the first retaining ring 223. When the positioning member 34 expands radially, the first retaining ring 223 causes movement interference to the self - ejecting mechanism 3, that is, the outer diameter of the positioning member 34 is larger than the diameter of the hole on the first retaining ring 223 at this time. When the positioning member 34 expands axially, the first retaining ring 223 does not cause movement interference to the self - ejecting mechanism 3, that is, the outer diameter of the positioning member 34 is smaller than the diameter of the hole on the first retaining ring 223 at this time. Further, it should be noted that the abutting end plate 33 can slide through the first retaining ring 223, thus avoiding affecting the ejection stroke of the self - ejecting mechanism 3.

[0038] Specifically, as Figure 10 shown, the limiting component 41 includes a trigger rod 411 inserted into the baffle 213. A fifth spring 412 is sleeved on the trigger rod 411. A first positioning ring 413 and a second positioning ring 414 are coaxially and fixedly connected to the trigger rod 411 respectively. Among them, the first positioning ring 413 is close to the abutting plate 42, and the second positioning ring 414 is located at one end of the trigger rod 411 away from the abutting plate 42. Two ends of the fifth spring 412 respectively abut against the baffle 213 and the first positioning ring 413. In this way, the trigger rod 411 forms a limiting insertion on the baffle 213 and forms an elastic insertion through the fifth spring 412.

[0039] It should be noted that one end of the trigger rod 411 abutting against the abutting plate 42 is hemispherical, which is convenient for the trigger rod 411 to slide towards the notch 421 when the trigger rod 411 follows the axial yaw of the gun tail 21, avoiding the trigger rod 411 from affecting the displacement of the abutting plate 42 towards the gun tail 21.

[0040] The following describes the use process of a new energy charging gun anti-dragging charging pile according to an embodiment of the present application with reference to the accompanying drawings: In the initial state, a stable plug-in relationship is formed between the gun tail part 21 and the gun body part 22. That is, at this time, the I-shaped cylinder 221 is plugged into the end ring 211. The distance between the end of the I-shaped cylinder 221 located inside the gun tail part 21 and the end ring 211 is the largest at this time, and the first spring 222 is in the maximum extended state at this time. A plurality of elastic columns 214 are respectively plugged into one end of the I-shaped cylinder 221 located in the gun body part 22, so as to form a relatively stable fixed connection relationship between the gun tail part 21 and the gun body part 22. Further, at this time, the trigger lever 411 abuts against the end face of the abutting plate 42 and forces the abutting plate 42 to press against the abutting end plate 33, so that the static distance between the abutting plate 42 and the first retaining ring 223 is the smallest at this time. It should be noted that the elastic force design of the first spring 222, the third spring 321, the fourth spring 324, and the fifth spring 412 enables the components on the entire charging gun 2 to maintain a stable connection and locking state, and at this time, the abutting ring 31 does not protrude from the gun body part 22, that is, the third spring 321 is in a compressed state at this time. Thus, both ends of the plurality of first hinge blocks 341 and second hinge blocks 342 are squeezed, so they will present the maximum radial state, that is, the first hinge blocks 341 and the second hinge blocks 342 form a semi-overlapping state as shown in the figure. At this time, through the semi-overlapping state of the first hinge blocks 341 and the second hinge blocks 342, the entire self-ejecting mechanism 3 forms a locking state in the gun body part 22. The user can hold the handle 225 and plug the charging gun 2 into the charging interface of the vehicle. For example, during use, if the charging gun 22 is not unplugged and the vehicle starts to drive away, at this time, the charging gun 22 will move with the vehicle until the cable 24 exerts a lateral pulling force on the gun tail part 21 due to the limited length. At this time, the gun tail part 21 is stressed and undergoes an axial angular change relative to the gun body part 22, and at the same time drives the trigger levers 411 on both sides to undergo the same angular change. Thus, the abutting end of the trigger lever 411 will slide into the notch 421, causing the abutting plate 42 to lose the abutting force. At this time, under the elastic force of the fourth spring 324, it will force the abutting rod 331 to displace away from the guide rod 32, and then cause the abutting end plate 33 to displace in the same direction. Thus, the plurality of first hinge blocks 341 and second hinge blocks 342 that were originally in the maximum radial state due to the squeezing force will deform from the semi-overlapping state to the straightened state until the outer diameter of the positioning member 34 is smaller than the diameter of the through hole on the first retaining ring 223. Thus, under the elastic force of the third spring 321, the abutting ring 31, the guide rod 32, the abutting end 33, and the positioning member 34 will form a locking release state and eject towards the vehicle body. During this process, for the guide rod 32 on the side of the pressing end 261, the limit end block 322 on it will come into contact with the wedge surface 267 during the displacement process, and convert the axial force applied by the limit end block 322 into a radial force through the wedge surface 267, and then force the pressing end 261 to displace radially towards the inside of the gun body part 22 and drive the transmission block 262 to undergo synchronous displacement at the same time. Thus, the limit end 263 will undergo synchronous displacement in the same direction.The locking state between the charging gun 2 and the vehicle charging interface is released. After the abutting ring 31 touches the vehicle body, its displacement stroke does not terminate. Therefore, a reverse force will be applied to the charging gun 2, causing the charging gun 2 to disengage from the vehicle body until the axial displacement stops when the limit end block 322 is blocked by the second retaining ring 224. With this design, the charging gun 2 can also smoothly detach from the vehicle body autonomously when subjected to a lateral force. Similarly, in a specific embodiment of the present application, when the charging gun 2 is subjected to a coaxial pulling force, it is obvious that the above-mentioned detachment action can be easily achieved. When the charging gun 2 wants to restore the stable connection state, it only needs to align and insert the plurality of elastic columns 214 into the I-shaped cylinder 221.,

[0041] In the related art, for this new energy charging gun anti-dragging charging pile, after the charging gun 2 ejects and detaches from the vehicle body, if there is no protection when it falls to the ground, it is extremely easy to cause damage to the charging gun 2, affecting the service life of the entire charging pile 1.

[0042] Embodiment 2, According to some embodiments of the present application, as Figure 2 and Figure 11 shown, a ground-falling protection member 5 is coaxially sleeved on the gun body portion 22. The ground-falling protection member 5 includes a first triangular frame 51 coaxially sleeved on the first retaining ring 223, and a second triangular frame 52 coaxially and slidably sleeved between the first retaining ring 223 and the second retaining ring 224. The first triangular frame 51 and the second triangular frame 52 have the same shape and size, and the angles of the first triangular frame 51 and the second triangular frame 52 on the gun body portion 22 are the same. The first triangular frame 51 and the second triangular frame 52 are both provided as equilateral triangles. The bottom corners of the first triangular frame 51 and the second triangular frame 52 deviate from the central axis of the charging gun 2, and the bottom corners of the first triangular frame 51 and the second triangular frame 52 are lower than one end of the gun tail portion 21 away from the gun body portion 22.

[0043] It should be noted that buffer pads can be added to the corner ends of the first triangular frame 51 and the second triangular frame 52 to enhance the ground-falling protection.

[0044] From this, it can be known that when the charging gun 2 falls to the ground, if it keeps the gun tail portion 21 facing downwards (i.e., Figure 2 the presented posture) and falls to the ground, at this time, the bottom ends of the first triangular frame 51 and the second triangular frame 52 touch the ground first, and under the action of the center of gravity of the entire charging gun 2, the charging gun 2 falls to the right side, avoiding damage to the connection end of the gun tail portion 21 and the cable 24 and the gun head portion 23 when they touch the ground.

[0045] Among them, a sliding ring 53 is embedded in the second triangular frame 52, and the sliding ring 53 is slidably sleeved on the gun body portion 22.

[0046] Specifically, a plurality of sliding blocks 531 are embedded on the sliding ring 53, the sliding blocks 531 are slidably sleeved on the guide rod 32, and the outer diameter of the sliding blocks 531 is not greater than the outer diameter of the limit end block 322.

[0047] Therefore, when the charging gun 2 is detached from the vehicle body, first, due to the axial displacement of the guiding rod 32, the slip ring 53 and the second triangular frame 52 fixedly sleeved thereon will be driven away from the first triangular frame 51, forming a certain distance between the first triangular frame 51 and the second triangular frame 52. In this way, after the charging gun 2 falls to the ground, since the bottom corners of the first triangular frame 51 and the second triangular frame 52 are lower than one end of the gun tail 21 away from the gun body 22, the connection end of the gun tail 21 and the cable 24 and the gun head 23 can be prevented from being damaged when touching the ground, and finally, the charging gun 2 is ensured to form a lying posture on the ground. If the ground is wet or even has water, to a certain extent, the charging gun 2 can also be prevented from being damaged by soaking in water.

[0048] In the related art, for this new energy charging gun anti-dragging charging pile, after the charging gun 2 falls to the ground, in the prior art, an automatic retracting device installed in the direction of the charging pile 1 is mostly used to drag the charging gun 2 back. However, the ground conditions are complex. First, during the retracting process, the charging gun 2 will be worn or even bumped on the ground. And once there is an obstacle that hinders the movement of the charging gun 2, it is very easy to cause a dragging phenomenon between the charging gun 2 and the charging pile 1 again.

[0049] Embodiment 3. According to some embodiments of the present application, as Figure 2 、 Figure 12 and Figure 13 shown, two recovery protection parts 6 are symmetrically arranged on the sides of the first triangular frame 51 and the second triangular frame 52 away from each other. The recovery protection part 6 includes three L-shaped positioning plates 61, and the L-shaped positioning plates 61 are circumferentially and evenly fixed on the end surface of the first triangular frame 51 or the second triangular frame 52. A roller shaft 62 is elastically arranged along the length direction on the L-shaped positioning plate 61, and the roller shaft 62 extends out of the first triangular frame 51 or the second triangular frame 52 in the radial direction of the gun body 22.

[0050] Wherein, a plurality of positioning rods 621 are arranged on one side of the roller shaft 62 (specifically, the roller shaft 62 is rotatably connected to a bracket, and the bracket is fixedly connected to the positioning rods 621). The positioning rods 621 are slidably inserted into the L-shaped positioning plates 61, and a sixth spring 622 is sleeved on the positioning rods 621.

[0051] Therefore, when the charging gun 2 is detached from the vehicle body, due to the axial displacement of the guide rod 32, the slip ring 53 and the second triangular frame 52 fixedly sleeved thereon will be driven away from the first triangular frame 51, forming a certain distance between the first triangular frame 51 and the second triangular frame 52. At the moment of falling to the ground, if the corners of the first triangular frame 51 and the second triangular frame 52 touch the ground first, the charging gun 2 will be cushioned from falling due to the buffer pads added thereon. Secondly, when the charging gun 2 lies on its side, at the moment when the mixing circumference 62 touches the ground, a further buffering effect will be achieved through the sixth spring 622. At this time, the rollers 62 on the side facing the ground of the two recovery protection members 6 are in contact with the ground. When the automatic winding device in the direction of the charging pile 1 actively winds the cable 24, the charging gun 2 can slide on the ground with the help of the rollers 62 due to the retraction of the cable 24, avoiding friction between the charging gun 2 and the ground and causing wear of the charging gun 2. The design of the rollers 62 can also adapt to complex ground conditions. Even if there are stones, protrusions, potholes, etc. on the ground, the rollers 62 can smoothly displace the charging gun 2 in the direction of the charging pile 1.

[0052] It should be noted that the specific model specifications of the charging pile 1, the elastic column 214, the first spring 222, the gun head 23, the corrugated pipe 25, the second spring 266, the third spring 321, the fourth spring 324, the fifth spring 412, and the sixth spring 622 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be elaborated in detail.

[0053] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A new energy charging gun anti-drag charging pile, comprising a charging pile (1) and a charging gun (2) with an active retraction function, wherein a cable (24) is connected between the charging gun (2) and the charging pile (1), and the charging gun (2) comprises a gun tail (21), a gun body (22) and a gun head (23) connected to each other, characterized in that: The gun body (22) is elastically plugged into the gun tail (21), and an axial swing angle is provided between the gun tail (21) and the gun body (22); An autonomous pop-up mechanism (3) is sleeved on the outer side of the gun body (22), and the autonomous pop-up mechanism (3) elastically slides along the axial direction of the gun body (22); A plurality of positioning members (34) are provided at one end of the autonomous pop-up mechanism (3), the positioning members (34) comprising a plurality of first hinge blocks (341) and second hinge blocks (342) arranged circumferentially, the first hinge blocks (341) and the second hinge blocks (342) being hinged to each other, the first hinge blocks (341) and the second hinge blocks (342) being hinged to each other, and the first hinge blocks (341) and the second hinge blocks (342) forming a semi-overlapping shape and a straightened shape; A limiting mechanism (4) for triggering and limiting the displacement of the autonomous pop-up mechanism (3) is provided between the gun tail portion (21) and the gun body portion (22); the limiting mechanism (4) elastically abuts against one end of the autonomous pop-up mechanism (3) and forms a semi-overlapping shape between the first hinge block (341) and the second hinge block (342).

2. The new energy charging gun anti-drag charging pile according to claim 1, characterized in that: An end ring (211) is provided at one end of the gun butt portion (21) facing the gun body portion (22); a flange (212) is provided on one side of the end ring (211) extending into the gun butt portion (21); the flange (212) faces the gun butt portion (21); two baffles (213) are symmetrically fixedly connected to one side of the end ring (211) located outside the gun butt portion (21); three elastic columns (214) are circumferentially fixedly connected to the end ring (211); a bellows (25) is connected between the gun butt portion (21) and the gun body portion (22); one end of the bellows (25) is coaxially fixedly connected to the end ring (211).

3. A new energy charging gun anti-drag charging pile as claimed in claim 2, characterized in that: An I-shaped tube (221) is provided at one end of the gun body (22) facing the gun tail (21); a portion of the I-shaped tube (221) is movably plugged into the end ring (211); a first spring (222) is provided between the end ring (211) and a portion of the I-shaped tube (221) located inside the gun tail (21); and the first spring (222) is sleeved on the I-shaped tube (221).

4. The new energy charging gun anti-drag charging pile as claimed in claim 2, characterized in that: The outer coaxial fixing sleeve of the gun body (22) is provided with a first retaining ring (223) and a second retaining ring (224); the outer wall of the gun body (22) is fixedly connected with a handle (225) along the axial direction; the handle (225) is fixedly connected with a retaining block (226); the gun body (22) is provided with a switch (26); the switch (26) is radially displaced in the gun body (22); and the switch (26) is arranged between the first retaining ring (223) and the second retaining ring (224).

5. The new energy charging gun anti-drag charging pile as claimed in claim 4, characterized in that: The switch (26) comprises a pressing end (261) radially inserted into the side wall of the gun body (22); one end of the pressing end (261) extending into the gun body (22) is fixedly connected to a transmission block (262); one end of the transmission block (262) is fixedly connected to a limiting end (263); limiting blocks (264) are symmetrically arranged on both sides of the limiting end (263); the limiting blocks (264) and the end surface of the gun body (22) are limitedly slidable toward the end of the gun head (23); the limiting end (263) is fixedly connected to the limiting end (263); One end extends out of the gun body (22) and is provided with a locking protrusion, a plurality of guide columns (265) are slidably inserted on the transmission block (262), the plurality of guide columns (265) are fixedly connected to the inner side of the gun body (22), a second spring (266) for resetting the pressing end (261) is sleeved on the guide column (265), and a wedge surface (267) is provided at one end of the pressing end (261) away from the transmission block (262), and the wedge surface (267) faces the first retaining ring (223).

6. A new energy charging gun anti-drag charging pile as claimed in claim 5, characterized in that: During the sliding process of the autonomous pop-up mechanism (3), the switch (26) is pressed to move toward the inside of the gun body (22) and a contact locking state is achieved between the charging gun (2) and the new energy vehicle. The autonomous pop-up mechanism (3) comprises: an abutment ring (31), the abutment ring (31) being slidably sleeved on the gun body (22) and located on a side of the second retaining ring (224) facing the gun head (23); A plurality of guide rods (32), the plurality of guide rods (32) being evenly arranged in the circumferential direction and fixedly connected to the abutment ring (31), the guide rods (32) being respectively slidably inserted into the first retaining ring (223) and the second retaining ring (224); an abutting end plate (33), one end of the abutting end plate (33) abutting against the limiting mechanism (4), one end of the abutting end plate (33) elastically plugged into the guide rod (32) and hingedly connected to the second hinge block (342); The first hinge block (341) is hinged to the end surface of the guide rod (32).

7. A new energy charging gun anti-drag charging pile as claimed in claim 6, characterized in that: A third spring (321) is sleeved on the guide rod (32), one end of the third spring (321) abuts against the abutting ring (31), and the other end of the third spring (321) abuts against the second retaining ring (224). One end of the guide rod (32) is coaxially fixedly connected to a limiting end block (322), the limiting end block (322) is hinged to the first hinge block (341), and a sliding cavity (323) is coaxially arranged inside the guide rod (32), and a fourth spring (324) is axially embedded in the sliding cavity (323).

8. The new energy charging gun anti-drag charging pile as claimed in claim 7, characterized in that: An abutment rod (331) is coaxially fixedly connected to one side of the abutment end plate (33), and the abutment rod (331) is inserted into the sliding cavity (323) in a limited sliding manner and abuts against the fourth spring (324).

9. The new energy charging gun anti-drag charging pile as claimed in claim 4, characterized in that: The limiting mechanism (4) comprises two limiting components (41) symmetrically arranged on both sides of the gun tail (21), and a contact plate (42) slidably sleeved on the gun body (22); the limiting component (41) is elastically plugged into the gun tail (21); the other end of the limiting component (41) is in contact with the contact plate (42); the contact plate (42) and one end of the autonomous ejection mechanism (3) are elastically in contact with each other to form a semi-overlapping shape between the first hinge block (341) and the second hinge block (342); notches (421) are respectively arranged on both sides of the contact position between the contact plate (42) and the limiting component (41); The positioning member (34) is located between the abutment plate (42) and the first retaining ring (223); when the positioning member (34) expands radially, the first retaining ring (223) causes motion interference with the autonomous pop-up mechanism (3); and when the positioning member (34) expands axially, the first retaining ring (223) does not cause motion interference with the autonomous pop-up mechanism (3).

10. The new energy charging gun anti-drag charging pile according to claim 9, characterized in that: The limiting assembly (41) comprises a trigger rod (411) inserted into the baffle plate (213), a fifth spring (412) is sleeved on the trigger rod (411), a first positioning ring (413) and a second positioning ring (414) are coaxially fixedly connected to the trigger rod (411), wherein the first positioning ring (413) is close to the abutment plate (42), and the second positioning ring (414) is located at an end of the trigger rod (411) away from the abutment plate (42), two ends of the fifth spring (412) are respectively abutted against the baffle plate (213) and the first positioning ring (413), and the end of the trigger rod (411) abutting against the abutment plate (42) is arranged in a hemispherical shape.

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