Emergency self-pulling device for automobile charging gun

Abstract

The invention discloses an emergency self-pulling device for an automobile charging gun, relates to the field of electric power equipment of electric vehicles, and solves the problems of insufficient self-pulling safety and incomplete disassembly of the charging gun. The emergency self-pulling device for the automobile charging gun comprises a cable, a charging gun body and a charging pile end threaded clamping groove, an anti-skid handle is installed on one side of the charging gun body, a power structure is installed in the charging gun body, and the power structure can automatically pull out the two ends of the charging gun at the same time; an anti-creeping assembly is installed on the side, close to the charging gun body, of the cable, and the anti-creeping assembly can close the exposed end of the cable. The two ends of the charging gun are pulled out simultaneously by starting the micro motor through the transmission part, so that the connecting points of the charging gun, the charging pile and the cable completely fall off, the situation that a vehicle owner or a vehicle is damaged by rebounding of the cable is avoided, and meanwhile the anti-creeping assembly at the exposed end of the cable is started spontaneously to prevent cable creeping.

Description

Technical Field

[0001] The invention relates to the field of electric equipment for electric vehicles, in particular to an emergency self-extraction device for a car charging gun. Background Art

[0002] The power storage equipment of electric vehicles mainly includes batteries, cables and charging guns. Through the electrical connection of the three, external electric energy is transmitted to the battery and stored. The main function of the emergency self-extraction device of the car charging gun is to ensure the safety of the power equipment, disassemble it in an emergency, and maximize the safety of the vehicle and personnel. It also preserves as many parts as possible so that they can continue to be used after emergencies such as short circuit combustion, saving the subsequent maintenance costs of electric vehicles. The existing Chinese patent with publication number CN114516273B discloses an emergency self-extraction device for a car charging gun. The present invention belongs to the technical field of car charging devices, and particularly relates to an emergency self-extraction device for a car charging gun, comprising a charging gun body, a charging head assembly, a limiting assembly and a driving assembly; the limiting assembly comprises an outer ring shell, and an outer wall of one side of the outer ring shell is fixedly connected with four groups of first springs in the form of a ring array, and the outer wall of the outer ring shell is symmetrically provided with two groups of locking grooves, and the micro motor in the driving assembly drives the active gear to flip, so as to achieve the purpose of separating the locking block from the locking groove after reverse rotation, and the outer ring shell is pushed to reset at the same time under the tension of the four groups of first springs, so as to achieve the effect of the outer ring shell contacting with the outer periphery of the car charging socket, so that the plug end of the charging head body and the car charging socket are separated and self-extracted from each other, so as to achieve the effect of rapid self-extraction of the car charging gun; However, the emergency self-extraction device for the automobile charging gun still has the following defects: 1. The plug may be contaminated and damaged if it is exposed to water, dust or other contaminants. The cable may be exposed or broken if it is worn, cut or squeezed. If the circuit inside the charging gun is improperly designed or uses low-quality components, a failure may also cause a short circuit. In addition, rough operation or improper use of the charging gun, such as forcibly inserting or pulling out the plug, may also cause damage to the internal structure, thereby causing a short circuit. There are many reasons for the short circuit of the charging gun that cannot be checked one by one in an emergency. However, simply popping the charging gun and the charging pile apart does not completely solve the safety hazard, and there is a risk of leakage if the charging gun pops out and falls to the ground; 2. In addition, if the charging gun is unplugged and no one is operating it, it will fall to the ground. At this time, the contacts at the connection end of the charging gun are exposed. When the contacts touch the ground, they will discharge outward, which will cause safety hazards such as electric shock to passers-by and drivers on the ground. Because when an accident occurs with the charging gun, the charging gun has already failed. At this time, the car end and the battery still store some electricity. Reverse charging of electric vehicles is also a common configuration on the market. Therefore, before the charging gun is recovered to the charging port on the car end, the current will flow in the reverse direction and the cable and charging gun will discharge outward; And because the charging cable needs to carry large currents, it increases in weight and lacks flexibility. Therefore, when the cable suddenly pops out due to an emergency, the torsional force released will cause the charging gun to rebound and injure the owner or the vehicle, posing a safety hazard. Summary of the invention

[0003] The purpose of the present invention is to provide an emergency self-extraction device for a vehicle charging gun to solve the problems raised in the above background technology.

[0004] The technical solution of the present invention is: an emergency self-extraction device for a car charging gun, comprising a cable, a charging gun body and a threaded slot at the end of a charging pile, a non-slip handle is installed on one side of the charging gun body, a power structure is installed inside the charging gun body, and the power structure can simultaneously self-extract both ends of the charging gun, and an anti-leakage component is installed on the side of the cable close to the charging gun body, and the anti-leakage component can close the exposed end of the cable, The power structure includes a micro motor and a transmission assembly. The micro motor is installed on the inner side of the charging gun body. The micro motor disassembles the cable, the charging gun body and the threaded slot at the charging pile end through the transmission assembly. Wherein, the anti-leakage component includes an elastic metal ring and a sealing plate. The elastic metal ring is installed at the exposed end of the cable. The elastic metal ring pushes the sealing plate through its own elastic force.

[0005] Furthermore, a non-slip handle is installed on one side of the charging gun body, a first threaded slot is installed at the bottom end of the charging gun body, and a first right-angle elbow is installed at the bottom end of the first threaded slot, and a fixing clamp is provided at one end of the first right-angle elbow close to the cable, and a leakage-proof component is installed at one end of the cable close to the first right-angle elbow.

[0006] Furthermore, the anti-leakage component includes a baffle plate, which is fixed to one end of the cable near the first right-angle elbow, and a limiting guide rail is embedded in the middle position of the baffle plate. The elastic metal ring is installed at the bottom end inside the limiting guide rail, and a movable slider is installed at the top of the elastic metal ring, and the movable slider slides inside the limiting guide rail. The top of the movable slider is fixedly connected to the sealing plate, and the shape of the sealing plate fits the arc shape of the cable pipe.

[0007] Furthermore, a second threaded slot is installed at the top of the charging gun body, and a second right-angle elbow is installed at the top of the second threaded slot, and a conductive component is installed inside the second right-angle elbow. Among them, the conductive component includes a wiring harness protective cover, and the wiring harness protective cover is arranged inside the second right-angle elbow, a conductive wiring harness is arranged inside the wiring harness protective cover, one end of the conductive wiring harness is connected to the cable, the end of the conductive wiring harness away from the cable is connected to a conductive contact plug, and an elastic pressure plate is installed on one side of the wiring harness protective cover.

[0008] Furthermore, a transmission gear is installed at the output end of the micro motor, and a transmission gear ring is installed on one side of the transmission gear, a reverse threaded rod is installed at the top of the transmission gear ring, and a forward threaded rod is installed at the bottom of the transmission gear ring. Wherein, the thread directions of the reverse threaded rod and the forward threaded rod are opposite.

[0009] Furthermore, a first U-shaped base is installed at one end of the reverse threaded rod away from the transmission gear ring, and the first U-shaped base has a U-shaped appearance, a through hole is provided at the middle position of the first U-shaped base, and a first H-shaped hinged seat is provided at one end of the first U-shaped base away from the reverse threaded rod, and a second hinged frame is hingedly installed at the connection between the first H-shaped hinged seat and the first U-shaped base, and the second hinged frame has a cross-shaped appearance.

[0010] Further, a second U-shaped base is installed at one end of the first H-shaped hinge seat away from the first U-shaped base, and a first hinge frame is hingedly installed at the connection between the second U-shaped base and the first H-shaped hinge seat, and the first hinge frame is in a cross shape. Among them, a threaded clamping ring is installed at one end of the second U-shaped base away from the first hinged frame, and the threaded clamping ring and the threaded clamping groove at the end of the charging pile are connected by threads, and the threaded clamping ring has a hollow shape inside.

[0011] Furthermore, a fourth U-shaped base is installed at one end of the forward threaded rod away from the reverse threaded rod, and a second H-shaped hinged seat is installed at one end of the fourth U-shaped base away from the forward threaded rod, and a third hinged frame is hingedly installed at the connection between the second H-shaped hinged seat and the fourth U-shaped base, and the third hinged frame has a cross-shaped appearance.

[0012] Further, a third U-shaped base is installed at one end of the second H-shaped hinged seat away from the fourth U-shaped base, and a fourth hinged frame is hingedly installed at the connection between the third U-shaped base and the second H-shaped hinged seat, and the fourth hinged frame has a cross-shaped appearance. Among them, a contact plug-in is installed at one end of the third U-shaped base away from the second H-shaped hinged base, and the contact plug-in has a conical shape. A conical elastic ring is passed through one end of the contact plug-in, and the conical elastic ring is elastic and has a conical shape. Wherein, the contact plug-in penetrates one end of the cable close to the anti-leakage component.

[0013] The present invention provides an emergency self-extraction device for a vehicle charging gun through improvement, which has the following improvements and advantages compared with the prior art: Firstly, the device starts the micro motor through the transmission parts to make the two ends of the charging gun pull themselves out at the same time, so that the connection points of the charging gun, the charging pile and the cable are completely detached. In an emergency, the device disassembles the connection ends of the charging gun, the cable and the charging pile respectively, so as to minimize the damage to the battery and various electrical components; when the contact plug is pulled out, the connection between the contact plug and the cable is disconnected, thereby ensuring that the intact electrical parts such as the cable and the battery can continue to be used after sudden accidents such as short circuit combustion, saving the maintenance cost of the electric vehicle and making it convenient for maintenance personnel to check the cause of the accident afterwards. The separated electrical parts are more convenient to check the fault location, and the charging gun is designed with multiple turns for easy gripping, and the structure can be transmitted in a curve.

[0014] The specific working principle is that in an emergency, the micro motor inside the charging gun body can be started through the driving assembly to drive the transmission gear to rotate, and the transmission gear drives the transmission gear ring to rotate through meshing transmission. The transmission gear ring rotates, driving the upper and lower fixed reverse threaded rod and the forward threaded rod to rotate at the same time. Because the thread grooves of the reverse threaded rod and the forward threaded rod are in opposite directions, when the reverse threaded rod and the forward threaded rod rotate in the same direction, the reverse threaded rod separates from the second threaded slot, so that the second threaded slot and the charging gun body are separated, and at the same time, the charging gun body and the first threaded slot are separated. In addition, the rotation of the reverse threaded rod will drive the first U-shaped base to rotate, and the first U-shaped base is connected by the second hinge The frame drives the first H-shaped articulated seat to rotate, and the first H-shaped articulated seat drives the second U-shaped base to rotate through the first articulated frame, and the second U-shaped base drives the threaded clamping ring to rotate, so that the threaded clamping ring falls off from the threaded clamping groove at the charging pile end. At the same time, when the second threaded clamping groove and the charging gun body are separated, the second U-shaped base and the threaded clamping ring are driven to be pulled out from the end of the second right-angle elbow close to the second threaded clamping groove. At this time, the threaded clamping ring not only has a rotational force to disengage from the threaded clamping groove at the charging pile end, but also has a pulling force away from one end of the threaded clamping groove at the charging pile end, thereby accelerating the separation speed of the threaded clamping ring and the threaded clamping groove at the charging pile end, accelerating the ejection speed of the charging gun in an emergency, and automatically ejecting the charging gun by using the thrust; In addition, when the forward threaded rod rotates, it drives the fourth U-shaped base to rotate, and the fourth U-shaped base drives the second H-shaped hinged seat to rotate through the third hinged frame. The second H-shaped hinged seat drives the third U-shaped base to rotate through the fourth hinged frame. The third U-shaped base drives the contact plug-in near one end of the cable to be pulled out from the conical elastic ring and the first right-angle elbow. At the same time, the leakage prevention component closes the exposed end of the cable. At the same time, when the forward threaded rod rotates, the first threaded slot will fall off from the bottom end of the forward threaded rod, and the contact plug-in will be driven by the third U-shaped base to pass through the first right-angle elbow and the first threaded slot, thereby causing the second threaded slot, the charging gun body and the first threaded slot to fall off, thereby achieving the effect of separating the charging gun and the cable.

[0015] Secondly, by starting the micro motor, the second right-angle elbow, the threaded slot at the charging pile end, the charging gun body and the cable are disconnected at the same time. At this time, the charging gun and the cable fall off, and the weight at the end of the first right-angle elbow is removed. The first right-angle elbow loses the burden of the charging gun end. At this time, the first right-angle elbow can be reset to the minimum amplitude through its own elasticity and torsional force, and there is no charging gun attached to the tail end of the first right-angle elbow, so the first right-angle elbow will no longer drive the charging gun to rebound, avoiding the torsional force released when the cable suddenly pops out in an emergency, causing the charging gun to rebound and injuring the owner or the vehicle. At the same time, the anti-leakage component at the exposed end of the cable starts spontaneously, which can prevent the cable from leaking electricity. The specific working principle of the anti-leakage component is that when the charging gun and the cable fall off, the contact plug-in is pulled out of the top of the first right-angle elbow, and the elastic metal ring in the anti-leakage component pushes the movable slider to slide in the limit guide rail, and the sealing plate is reset, thereby closing the contact end of the cable and sealing the exposed end of the cable to prevent the cable contact from contacting the ground car end and the electricity stored in the battery from discharging outward, thereby causing safety hazards of electric shock to pedestrians and drivers on the ground. The exposed end is exposed to the ground, causing electric shock to pedestrians.

[0016] In addition, the charging gun connects the conductive contact plug and the battery storage end through the conductive wiring harness inside the conductive component. The function of the elastic pressure plate is to increase the fixing effect of the conductive contact plug through pressure. When in use, the threaded clamp ring and the threaded slot at the charging pile end are threadedly connected, which is convenient for strengthening the fixing effect of the charging gun and the charging pile. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further explained below in conjunction with the accompanying drawings and Examples: Figure 1 It is a schematic diagram of the first three-dimensional appearance structure of the present invention; Figure 2 It is a schematic diagram of a second three-dimensional appearance structure of the present invention; Figure 3 It is a schematic diagram of a third three-dimensional appearance structure of the present invention; Figure 4It is a schematic diagram of a first three-dimensional explosion structure of the present invention; Figure 5 For the present invention Figure 4 The enlarged structural diagram at A in the middle; Figure 6 It is a schematic diagram of a second three-dimensional explosion structure of the present invention; Figure 7 It is a schematic diagram of a third three-dimensional explosion structure of the present invention; Figure 8 For the present invention Figure 7 The enlarged structural diagram at B in the middle; Fig. 9 For the present invention Figure 7 The enlarged structural diagram at C in the middle; Fig.10 It is a schematic diagram of a fourth three-dimensional explosion structure of the present invention; Fig.11 For the present invention Fig.10 Enlarged structural diagram at D in the middle.

[0018] Description of reference numerals: 1. Cable; 2. Fixing clamp; 3. First right-angle elbow; 4. First threaded slot; 5. Charging gun body; 6. Anti-slip handle; 7. Second right-angle elbow; 8. Second threaded slot; 9. Threaded clamp; 10. Conductive component; 1001. Conductive contact plug; 1002. Elastic pressure plate; 1003. Conductive wire harness; 1004. Wire harness protective cover; 11. Threaded slot at charging pile end; 12. Power structure; 1201. Forward threaded rod; 1202. Reverse threaded rod; 1203. Transmission gear ring; 1204. First U-shaped base; 1205 , first H-shaped articulated seat; 1206, second U-shaped base; 1207, first articulated frame; 1208, second articulated frame; 1209, second H-shaped articulated seat; 1210, third U-shaped base; 1211, third articulated frame; 1212, fourth articulated frame; 1213, fourth U-shaped base; 1214, micro motor; 1215, transmission gear; 13, anti-leakage component; 1301, baffle plate; 1302, sealing plate; 1303, limit guide rail; 1304, elastic metal ring; 1305, movable slider; 14, contact plug-in; 15, conical elastic ring. DETAILED DESCRIPTION

[0019] The following will be combined with the attached Figures 1 to 11 The present invention is described in detail, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] The present invention provides an emergency self-extraction device for a car charging gun through improvement, comprising a cable 1, a charging gun body 5 and a threaded slot 11 at the end of a charging pile, a non-slip handle 6 is installed on one side of the charging gun body 5, a power structure 12 is installed inside the charging gun body 5, and the power structure 12 can simultaneously self-extract the two ends of the charging gun, and an anti-leakage component 13 is installed on the side of the cable 1 close to the charging gun body 5, and the anti-leakage component 13 can close the exposed end of the cable 1. A non-slip handle 6 is installed on one side of the charging gun body 5, a first threaded slot 4 is installed at the bottom end of the charging gun body 5, and a first right-angle elbow 3 is installed at the bottom end of the first threaded slot 4, and a fixing clamp 2 is sleeved on the end of the first right-angle elbow 3 close to the cable 1, and an anti-leakage component 13 is installed on the end of the cable 1 close to the first right-angle elbow 3; The power structure 12 includes a micro motor 1214 and a transmission assembly. The micro motor 1214 is installed on the inner side of the charging gun body 5. In an emergency, the micro motor 1214 on the inner side of the charging gun body 5 can be started by the driving assembly. The micro motor 1214 disassembles the cable 1, the charging gun body 5 and the threaded slot 11 at the charging pile end through the transmission assembly. A transmission gear 1215 is installed at the output end of the micro motor 1214, driving the transmission gear 1215 to rotate, and a transmission gear ring 1203 is installed on one side of the transmission gear 1215. The transmission gear 1215 drives the transmission gear ring 1203 to rotate through meshing transmission. A reverse threaded rod 1202 is installed at the top of the transmission gear ring 1203, and a forward threaded rod 1201 is installed at the bottom of the transmission gear ring 1203. The rotation of the transmission gear ring 1203 drives the reverse threaded rod 1202 and the forward threaded rod 1201 fixed above and below to rotate simultaneously. Among them, the thread directions of the reverse threaded rod 1202 and the forward threaded rod 1201 are opposite; because the thread grooves of the reverse threaded rod 1202 and the forward threaded rod 1201 are in opposite directions, when the reverse threaded rod 1202 and the forward threaded rod 1201 rotate in the same direction, the reverse threaded rod 1202 separates from the second threaded groove 8, so that the second threaded groove 8 and the charging gun body 5 move away from each other, and at the same time, the charging gun body 5 and the first threaded groove 4 move away from each other, and at the same time, the charging gun body 5 and the first threaded groove 4 separate from each other. A first U-shaped base 1204 is installed at one end of the reverse threaded rod 1202 away from the transmission gear ring 1203. In addition, the rotation of the reverse threaded rod 1202 will drive the first U-shaped base 1204 to rotate, and the first U-shaped base 1204 is in a U-shaped shape. A through hole is provided at the middle position of the first U-shaped base 1204. A first H-shaped hinge seat 1205 is provided at one end of the first U-shaped base 1204 away from the reverse threaded rod 1202, and a second hinge frame 1208 is hingedly installed at the connection between the first H-shaped hinge seat 1205 and the first U-shaped base 1204, and the second hinge frame 1208 is in a cross shape; the first U-shaped base 1204 drives the first H-shaped hinge seat 1205 to rotate through the second hinge frame 1208. A second U-shaped base 1206 is installed at one end of the first H-shaped hinge seat 1205 away from the first U-shaped base 1204, and a first hinge frame 1207 is hingedly installed at the connection between the second U-shaped base 1206 and the first H-shaped hinge seat 1205, and the first hinge frame 1207 is in a cross shape. The first H-shaped hinge seat 1205 drives the second U-shaped base 1206 to rotate through the first hinge frame 1207. Among them, a threaded snap ring 9 is installed at one end of the second U-shaped base 1206 away from the first hinged frame 1207, and the threaded snap ring 9 is connected to the threaded groove 11 at the charging pile end by threads, and the threaded snap ring 9 is hollow inside; the second U-shaped base 1206 drives the threaded snap ring 9 to rotate, so that the threaded snap ring 9 falls off from the threaded groove 11 at the charging pile end; the end of the threaded groove 11 at the charging pile end away from the threaded snap ring 9 is fixed to the charging pile, and when the charging gun is fixed, the threaded snap ring 9 is threadedly connected to the threaded groove 11 at the charging pile end, so as to enhance the fixing effect of the charging gun and the charging pile; At the same time, when the second threaded groove 8 and the charging gun body 5 move away from each other, the second U-shaped base 1206 and the threaded clamping ring 9 are pulled out from the end of the second right-angle elbow 7 close to the second threaded groove 8. At this time, the threaded clamping ring 9 not only has a rotational force to disengage from the threaded groove 11 at the charging pile end, but also has a pulling force away from the end of the threaded groove 11 at the charging pile end, thereby accelerating the separation speed of the threaded clamping ring 9 and the threaded groove 11 at the charging pile end, and accelerating the ejection speed of the charging gun in an emergency, and automatically ejecting the charging gun by using the thrust; A fourth U-shaped base 1213 is installed at one end of the forward threaded rod 1201 away from the reverse threaded rod 1202, and a second H-shaped hinge seat 1209 is installed at one end of the fourth U-shaped base 1213 away from the forward threaded rod 1201. In addition, when the forward threaded rod 1201 rotates, the fourth U-shaped base 1213 is driven to rotate. A third hinge frame 1211 is hingedly installed at the connection between the second H-shaped hinge seat 1209 and the fourth U-shaped base 1213, and the third hinge frame 1211 is in a cross shape. The fourth U-shaped base 1213 drives the second H-shaped hinge seat 1209 to rotate through the third hinge frame 1211. A third U-shaped base 1210 is installed at one end of the second H-shaped articulated seat 1209 away from the fourth U-shaped base 1213, and a fourth articulated frame 1212 is hingedly installed at the connection between the third U-shaped base 1210 and the second H-shaped articulated seat 1209, and the fourth articulated frame 1212 is in a cross shape. The second H-shaped articulated seat 1209 drives the third U-shaped base 1210 to rotate through the fourth articulated frame 1212. By starting the micro motor 1214, the second right-angle elbow 7, the threaded slot 11 at the charging pile end, the charging gun body 5 and the cable 1 are disconnected at the same time. At this time, the charging gun and the cable fall off, and the weight at the end of the first right-angle elbow 3 is removed. The first right-angle elbow 3 loses the burden of the charging gun end. At this time, the first right-angle elbow 3 can be reset to the minimum amplitude through its own elasticity and torsional force, and the tail end of the first right-angle elbow 3 is not attached to the charging gun, so the first right-angle elbow 3 will no longer drive the charging gun to rebound, avoiding the torsional force released when the cable suddenly pops out in an emergency, causing the charging gun to rebound and injuring the car owner or the vehicle. Safety hazards; The device starts the micro motor 1214 and uses the transmission parts to make both ends of the charging gun self-unplugged at the same time, so that the connection points of the charging gun, the charging pile and the cable 1 are completely detached. In an emergency, the device disassembles the connection ends of the charging gun, the cable and the charging pile respectively, thereby limiting and blocking the damage to the battery and various electrical components to the greatest extent; when the contact plug 14 is pulled out, the connection between the contact plug 14 and the cable 1 is disconnected, thereby ensuring that the cable 1 and the battery and other intact electrical components can continue to be used after an emergency such as a short circuit or combustion, saving the maintenance cost of the electric vehicle and making it convenient for maintenance personnel to check the cause of the accident afterwards. The separated electrical components are more convenient to check the fault location, and the charging gun is designed with multiple turns for easy gripping, and the structure can be driven in a curve; Among them, a contact plug-in 14 is installed at one end of the third U-shaped base 1210 away from the second H-shaped hinge seat 1209, and the contact plug-in 14 has a conical shape. A conical elastic ring 15 is passed through one end of the contact plug-in 14, and the conical elastic ring 15 is elastic and has a conical shape. The third U-shaped base 1210 drives the contact plug-in 14 near one end of the cable 1 to be pulled out from the conical elastic ring 15 and the first right-angle elbow 3. At the same time, when the forward threaded rod 1201 rotates, the first threaded slot 4 will fall off from the bottom end of the forward threaded rod 1201, and the contact plug-in 14 will be driven by the third U-shaped base 1210 to pass through the first right-angle elbow 3 and pass through the first threaded slot 4, so that the second threaded slot 8, the charging gun body 5 and the first threaded slot 4 fall off, thereby achieving the effect of separating the charging gun and the cable 1; The contact plug 14 penetrates one end of the cable 1 close to the leakage prevention component 13; at the same time, the leakage prevention component 13 closes the exposed end of the cable 1. The anti-leakage component 13 includes an elastic metal ring 1304 and a sealing plate 1302. The elastic metal ring 1304 is installed at the exposed end of the cable 1. The elastic metal ring 1304 pushes the sealing plate 1302 through its own elastic force. The anti-leakage component 13 includes a shielding plate 1301, which is fixed to one end of the cable 1 close to the first right-angle elbow 3, and a limiting guide rail 1303 is embedded in the middle position of the shielding plate 1301. An elastic metal ring 1304 is installed at the bottom end of the limiting guide rail 1303. A movable slider 1305 is installed at the top of the elastic metal ring 1304, and the movable slider 1305 slides inside the limiting guide rail 1303. The top of the movable slider 1305 is fixedly connected to the sealing plate 1302, and the shape of the sealing plate 1302 fits the pipe-shaped arc shape of the cable 1; The specific working principle of the anti-leakage component 13 is that when the charging gun and the cable fall off, the contact plug-in 14 pulls out the top of the first right-angle elbow 3, and the elastic metal ring 1304 in the anti-leakage component 13 pushes the movable slider 1305 to slide in the limiting guide rail 1303, and the sealing plate 1302 is reset, thereby closing the contact end of the cable 1, sealing the exposed end of the cable 1, and preventing the cable contact from contacting the ground car end and the electricity stored in the battery from discharging outward, thereby causing a safety hazard of electric shock to passers-by and drivers on the ground, and the exposed end is exposed on the ground, causing electric shock to passers-by; A second threaded slot 8 is installed at the top of the charging gun body 5, and a second right-angle elbow 7 is installed at the top of the second threaded slot 8. A conductive component 10 is installed inside the second right-angle elbow 7. Among them, the conductive component 10 includes a wiring harness protective cover 1004, and the wiring harness protective cover 1004 is arranged inside the second right-angle elbow 7, and a conductive harness 1003 is arranged inside the wiring harness protective cover 1004, one end of the conductive harness 1003 is connected to the cable 1, and the end of the conductive harness 1003 away from the cable 1 is connected to the conductive contact plug 1001, and the charging gun is connected to the conductive contact plug 1001 and the battery storage end through the conductive harness 1003 inside the conductive component 10, and an elastic pressure plate 1002 is installed on one side of the wiring harness protective cover 1004, and the function of the elastic pressure plate 1002 is to increase the fixing effect of the conductive contact plug 1001 through pressure.

[0021] Working principle: First, in an emergency, the micro motor 1214 on the inside of the charging gun body 5 can be started through the driving component to drive the transmission gear 1215 to rotate. The transmission gear 1215 drives the transmission ring 1203 to rotate through meshing transmission. The rotation of the transmission ring 1203 drives the reverse threaded rod 1202 and the forward threaded rod 1201 fixed up and down to rotate at the same time. Because the thread grooves of the reverse threaded rod 1202 and the forward threaded rod 1201 are in opposite directions, when the reverse threaded rod 1202 and the forward threaded rod 1201 rotate in the same direction, the reverse threaded rod 1202 separates from the second threaded slot 8, so that the second threaded slot 8 and the charging gun body 5 are separated, and at the same time, the charging gun body 5 and the first threaded slot 4 are separated. In addition, the rotation of the reverse threaded rod 1202 will drive the first U-shaped base 1204 to rotate. 1204 drives the first H-shaped articulated seat 1205 to rotate through the second articulated frame 1208, and the first H-shaped articulated seat 1205 drives the second U-shaped base 1206 to rotate through the first articulated frame 1207, and the second U-shaped base 1206 drives the threaded retaining ring 9 to rotate, so that the threaded retaining ring 9 falls off from the threaded slot 11 at the charging pile end. At the same time, when the second threaded slot 8 and the charging gun body 5 are separated, the second U-shaped base 1206 and the threaded retaining ring 9 are driven to be pulled out from the end of the second right-angle elbow 7 close to the second threaded slot 8. At this time, the threaded retaining ring 9 not only has a rotational force to disengage from the threaded slot 11 at the charging pile end, but also has a pulling force away from one end of the threaded slot 11 at the charging pile end, thereby accelerating the separation speed of the threaded retaining ring 9 and the threaded slot 11 at the charging pile end, accelerating the ejection speed of the charging gun in an emergency, and automatically ejecting the charging gun by thrust.

[0022] Then, when the forward threaded rod 1201 rotates, the fourth U-shaped base 1213 is driven to rotate, and the fourth U-shaped base 1213 drives the second H-shaped hinge seat 1209 to rotate through the third hinge frame 1211, and the second H-shaped hinge seat 1209 drives the third U-shaped base 1210 to rotate through the fourth hinge frame 1212, and the third U-shaped base 1210 drives the contact plug-in 14 near one end of the cable 1 to be pulled out from the conical elastic ring 15 and the first right-angle elbow 3, and the anti-leakage component 13 closes the exposed end of the cable 1. At the same time, when the forward threaded rod 1201 rotates, the first threaded slot 4 will fall off from the bottom end of the forward threaded rod 1201, and the contact plug-in 14 will be driven by the third U-shaped base 1210 to pass through the first right-angle elbow 3 from the first threaded slot 4, so that the second threaded slot 8, the charging gun body 5 and the first threaded slot 4 fall off, thereby achieving the effect of separating the charging gun and the cable 1.

[0023] Finally, when the charging gun and the cable fall off, the contact plug-in 14 is pulled out of the top of the first right-angle elbow 3, and the elastic metal ring 1304 in the anti-leakage component 13 pushes the movable slider 1305 to slide in the limiting guide rail 1303, and the sealing plate 1302 is reset, thereby closing the contact end of the cable 1 and sealing the exposed end of the cable 1 to prevent the cable contact from contacting the ground car end and the power stored in the battery from discharging outward, thereby causing safety hazards of electric shock to passers-by and drivers on the ground. The exposed end is exposed on the ground, causing electric shock to passers-by. In addition, the charging gun is connected to the conductive contact plug 1001 and the battery storage end through the conductive wire harness 1003 inside the conductive component 10. The function of the elastic pressure plate 1002 is to increase the fixing effect of the conductive contact plug 1001 through pressure. When in use, the threaded clamp ring 9 and the threaded slot 11 at the charging pile end are threadedly connected to facilitate strengthening the fixing effect of the charging gun and the charging pile.

[0024] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An emergency self-extraction device for a vehicle charging gun, comprising a cable (1), a charging gun body (5) and a threaded slot (11) at a charging pile end, characterized in that: A non-slip handle (6) is installed on one side of the charging gun body (5), a power structure (12) is installed inside the charging gun body (5), and the power structure (12) can simultaneously pull out both ends of the charging gun, and an anti-leakage component (13) is installed on the side of the cable (1) close to the charging gun body (5), and the anti-leakage component (13) can close the exposed end of the cable (1). The power structure (12) comprises a micro motor (1214) and a transmission assembly, wherein the micro motor (1214) is installed on the inner side of the charging gun body (5), and the micro motor (1214) disassembles the cable (1), the charging gun body (5) and the threaded slot (11) at the end of the charging pile through the transmission assembly; The anti-leakage component (13) comprises an elastic metal ring (1304) and a sealing plate (1302); the elastic metal ring (1304) is installed on the exposed end of the cable (1); and the elastic metal ring (1304) pushes the sealing plate (1302) through its own elastic force.

2. The emergency self-extraction device for a vehicle charging gun according to claim 1, characterized in that: A non-slip handle (6) is installed on one side of the charging gun body (5), a first threaded slot (4) is installed at the bottom end of the charging gun body (5), a first right-angle elbow (3) is installed at the bottom end of the first threaded slot (4), and a fixing clamp (2) is sleeved on one end of the first right-angle elbow (3) close to the cable (1), and an anti-leakage component (13) is installed on one end of the cable (1) close to the first right-angle elbow (3).

3. The emergency self-extraction device for a vehicle charging gun according to claim 1, characterized in that: The anti-leakage component (13) comprises a shielding plate (1301), the shielding plate (1301) being fixed to one end of the cable (1) close to the first right-angle elbow (3), a limiting guide rail (1303) being embedded in the middle position of the shielding plate (1301), the elastic metal ring (1304) being mounted on the bottom end inside the limiting guide rail (1303), a movable slider (1305) being mounted on the top end of the elastic metal ring (1304), and the movable slider (1305) sliding inside the limiting guide rail (1303), the top end of the movable slider (1305) being fixedly connected to the sealing plate (1302), and the outer shape of the sealing plate (1302) fitting the pipe-shaped arc outer shape of the cable (1).

4. The emergency self-extraction device for a vehicle charging gun according to claim 1, characterized in that: A second threaded slot (8) is installed at the top of the charging gun body (5), and a second right-angle elbow (7) is installed at the top of the second threaded slot (8), and a conductive component (10) is installed inside the second right-angle elbow (7). The conductive component (10) comprises a harness protective cover (1004), and the harness protective cover (1004) is arranged inside the second right-angle elbow (7), a conductive harness (1003) is arranged inside the harness protective cover (1004), one end of the conductive harness (1003) is connected to the cable (1), one end of the conductive harness (1003) away from the cable (1) is connected to a conductive contact plug (1001), and an elastic pressure plate (1002) is installed on one side of the harness protective cover (1004).

5. The emergency self-extraction device for a vehicle charging gun according to claim 1, characterized in that: A transmission gear (1215) is installed at the output end of the micro motor (1214), and a transmission gear ring (1203) is installed on one side of the transmission gear (1215). A reverse threaded rod (1202) is installed at the top end of the transmission gear ring (1203), and a forward threaded rod (1201) is installed at the bottom end of the transmission gear ring (1203). The threads of the reverse threaded rod (1202) and the forward threaded rod (1201) are in opposite directions.

6. The emergency self-extraction device for a vehicle charging gun according to claim 5, characterized in that: A first U-shaped base (1204) is installed at one end of the reverse threaded rod (1202) away from the transmission gear ring (1203), and the first U-shaped base (1204) is in a U-shaped shape. A through hole is provided at the middle position of the first U-shaped base (1204). A first H-shaped hinged seat (1205) is provided at one end of the first U-shaped base (1204) away from the reverse threaded rod (1202), and a second hinged frame (1208) is hingedly installed at the connection between the first H-shaped hinged seat (1205) and the first U-shaped base (1204), and the second hinged frame (1208) is in a cross-shaped shape.

7. The emergency self-extraction device for a vehicle charging gun according to claim 6, characterized in that: A second U-shaped base (1206) is installed at one end of the first H-shaped hinged seat (1205) away from the first U-shaped base (1204), and a first hinged frame (1207) is hingedly installed at the connection between the second U-shaped base (1206) and the first H-shaped hinged seat (1205), and the first hinged frame (1207) is in a cross shape. A threaded clamp ring (9) is installed at one end of the second U-shaped base (1206) away from the first hinged frame (1207), and the threaded clamp ring (9) and the threaded clamp groove (11) at the end of the charging pile are connected by threads, and the threaded clamp ring (9) has a hollow shape inside.

8. The emergency self-extraction device for a vehicle charging gun according to claim 7, characterized in that: A fourth U-shaped base (1213) is installed at one end of the forward threaded rod (1201) away from the reverse threaded rod (1202), and a second H-shaped hinged seat (1209) is installed at one end of the fourth U-shaped base (1213) away from the forward threaded rod (1201), and a third hinged frame (1211) is hingedly installed at the connection between the second H-shaped hinged seat (1209) and the fourth U-shaped base (1213), and the third hinged frame (1211) is in a cross shape.

9. The emergency self-extraction device for a vehicle charging gun according to claim 8, characterized in that: A third U-shaped base (1210) is installed at one end of the second H-shaped hinged seat (1209) away from the fourth U-shaped base (1213), and a fourth hinged frame (1212) is hingedly installed at the connection between the third U-shaped base (1210) and the second H-shaped hinged seat (1209), and the fourth hinged frame (1212) is in a cross shape. A contact plug (14) is installed at one end of the third U-shaped base (1210) away from the second H-shaped hinged base (1209), and the contact plug (14) has a conical shape. A conical elastic ring (15) passes through one end of the contact plug (14), and the conical elastic ring (15) is elastic. The conical elastic ring (15) has a conical shape. The contact plug (14) passes through one end of the cable (1) close to the leakage prevention component (13).

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