Electric pile is filled to supplementary type of parkking
Technical Field
The invention relates to the field of charging piles, in particular to an auxiliary parking type charging pile.
Background
The charging pile has the function similar to that of an oiling machine in a gas station, can be fixed on the ground or on the wall, is installed in public buildings (public buildings, markets, public parking lots and the like) and residential area parking lots or charging stations, can charge electric vehicles of various models according to different voltage levels, is directly connected with an alternating current power grid at the input end and is provided with a charging plug at the output end for charging the electric vehicles.
However, a stop lever or a deceleration strip is placed right in front of the conventional charging pile to remind an operator to stop the vehicle, when the handle brake is forgotten by negligence in the driving process, the automobile can not be limited, accidents are easy to happen, the warning effect on operators is poor, the positioning effect on the charging position is poor, the charging plug is easy to impact on the ground due to misoperation in the charging process, the charging plug is damaged, the later charging is influenced, meanwhile, the charging cable rubs on the ground, silt is easy to adhere to the charging cable, even the cable is damaged, and meanwhile, when the charging cable is applied to outdoor weather in the south, rainwater is easy to splash at the end part of the charging plug to influence the charging safety, the charging plug can be pulled out when the charging process is not carried out, children or other pranksters can easily pull out the charging plug, the charging plug is damaged, and even potential safety hazards are brought to self.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an auxiliary parking type charging pile.
The technical scheme adopted by the invention for solving the technical problems is as follows: an auxiliary parking type charging pile comprises a limiting structure, a supporting structure, a charging pile body, a sealing structure and a charging head; the charging pile body used outdoors for charging the automobile is electrically connected with the charging head used for connecting the electric automobile to charge the electric automobile; the charging head is fixed with the sealing structure for limiting the charging head, and the sealing structure is fixed inside the charging pile body; the supporting structure for fixing the cable of the charging head is arranged in the charging pile body, and the supporting structure is arranged at the bottom end of the sealing structure; seal structure connect in being used for carrying out assistance-localization real-time and spacing to the car limit structure, just limit structure with fill and set up perpendicularly between the electric pile body.
Specifically, the limiting structure comprises a limiting plate, a supporting frame, a rubber sleeve, a reset spring, a first air pipe, an air bag, a second air pipe, a reset cushion and a pressing plate, the supporting frame is used for decelerating and positioning the automobile and is vertically arranged between the charging pile body used for providing a power supply, two ends of the cross section of the supporting frame are triangular, the limiting plate is arranged in the supporting frame and is used for positioning the tire of the automobile in a sliding connection mode, the cross section of one end, away from the supporting frame, of the limiting plate is arc-shaped, the limiting plate is connected with the supporting frame in a sliding mode, the pressing plate with the cross section being in a convex structure is arranged at the bottom end of the limiting plate, the air bag used for damping and pressure relief is arranged at the bottom end of the pressing plate, a plurality of wavy reset cushions used for assisting in resetting are alternately arranged in the interior of the air bag, the second air pipe penetrates through the supporting frame and extends to the, the second trachea with switch on between the gasbag, the clamp plate deviates from the both ends of gasbag are equipped with the rubber sleeve, the rubber sleeve deviates from the one end of clamp plate is fixed in the carriage, two switch on between the rubber sleeve, the cross-section of rubber sleeve is butterfly form, the inside of rubber sleeve is equipped with a plurality ofly reset spring, first trachea run through in the carriage just extends to the rubber sleeve, first trachea with the rubber sleeve switches on.
Specifically, the sealing structure comprises a damping shaft, a rubber ring, a fixing frame, an air hole, a limiting rod and a flow guiding chamber, two damping shafts are symmetrically arranged at two ends of the fixing frame for accommodating the charging head, the damping shafts penetrate through the charging pile body, the fixing frame is rotatably connected with the charging pile body through the damping shafts, the rubber ring is fixed at the end part of the charging head and is clamped with the fixing frame, a plurality of air holes with cylindrical structures are arranged between the fixing frame and the rubber ring, the second air pipe is fixed on the fixing frame with one end deviating from the air bag and is communicated with the air hole, the flow guiding chamber with an annular structure is arranged inside the fixing frame, a plurality of limiting rods are arranged on the fixing frame in a circumferential array manner, and the limiting rods are slidably connected with the fixing frame, one end of the limiting rod extends to the flow guide chamber, the other end of the limiting rod abuts against the rubber ring, the first air pipe is fixed on the fixed frame, and the first air pipe is communicated with the flow guide chamber.
Specifically, the sealing structure further comprises a stop block, and the fixing frame is provided with the stop block used for sealing the air hole.
Specifically, the supporting structure comprises a plurality of supporting rods, a guide shaft, a limiting sleeve, a one-way valve, a non-slip mat, a sliding sleeve, a driving rod, a flow guide groove and a piston, one end of the sliding sleeve of a hollow rectangular cylinder structure is fixed on the charging pile body, a plurality of sliding-connected supporting rods are arranged inside the sliding sleeve, two adjacent supporting rods are in sliding connection, a plurality of circumferential array-arranged non-slip mats are arranged at the end part of each supporting rod, the thickness of each non-slip mat is gradually reduced from two ends to the middle, a sliding-connected piston is arranged inside one supporting rod which deviates from the most end part of the sliding sleeve, the driving rod is connected with the supporting rods and the piston in a penetrating manner, the driving rod is connected with the supporting rods in a rotating manner, the driving rod is connected with the piston in a threaded manner, and the flow guide groove penetrates through, the length of guiding gutter is greater than the length of piston, sliding sleeve and one of tip all be equipped with one on the bracing piece the check valve, the bracing piece deviates from the one end of sliding sleeve is equipped with to rotate to connect the guiding axle for fixed cable the stop collar is fixed in the guiding axle.
The invention has the beneficial effects that:
(1) according to the parking-assisting type charging pile, the limiting structure is vertically arranged between the charging pile body, the charged vehicle running to one side of the charging pile body is subjected to speed reduction limiting, the speed reduction time is prolonged, the vehicle can be closed in a longer time response mode when arriving at a specified position, the parking of the vehicle is faster, the stress area of wheels is increased, accidents caused by forgetting to pull a hand brake are avoided, and the parking is safer; firstly, a support frame is fixed on the ground through an expansion bolt, the support frame is perpendicular to a charging pile body, then the end parts of a first air pipe and a second air pipe are connected to a sealing structure, two ends of the cross section of the support frame are triangular, the gradient of speed limit is delayed, the speed reduction distance is increased, when a vehicle runs to the support frame, the running speed of the vehicle is slowly reduced, an operator consciously determines that the vehicle reaches a parking place, under the inertia effect of the vehicle, the wheels of the vehicle enter an arc-shaped groove in the limiting plate, further speed limit is realized, the top end of the limiting plate is arc-shaped, the structure of the wheels is met, the contact area of the wheels is increased, the resistance of the wheels is increased, meanwhile, the limiting plate and the support frame are driven to slide under the gravity effect of the vehicle, the limiting plate converts the acting force in the running direction of the vehicle into the deformation force of an, and then be convenient for make the better stopping of vehicle on the limiting plate, make the slow shake of vehicle simultaneously, make operating personnel be convenient for more clearly the vehicle reachs the assigned position, make the parking more normal, the top surface of limiting plate is the arc, has increased the resistance to the wheel of car, and the effectual navigating mate that prevents forgets the hand brake emergence accident, makes the parking safe high-efficient more.
(2) According to the parking-assisting type charging pile, the sealing structure is rotatably connected with the charging pile body, rainwater is effectively prevented from splashing on the charging head after the charging pile is used, and the limiting structure is used in a matched mode, so that the charging head cannot be taken out before an automobile runs to the limiting structure, the protection effect on the charging head is better, the use safety of the charging pile is improved, and meanwhile, when the automobile runs to the limiting structure, airflow is generated on the sealing structure, and dust is effectively prevented from being adhered to the charging head; namely: when the limiting plate and the supporting frame slide, the driving pressure plate is abutted against the deformation of the air bag, the reset cushion is deformed, the accommodating cavity in the air bag is reduced, gas is discharged to the air hole in the fixing frame through the second air pipe, the air circulation near the charging head is increased, dust is effectively prevented from being bonded on the charging head to influence the charging effect, the pressure plate drives the rubber sleeve to stretch, the reset spring extends, the accommodating cavity in the rubber sleeve is enlarged, the rubber sleeve is communicated with the flow guide chamber through the first air pipe, the pressure in the flow guide chamber is reduced, the limiting rod and the fixing frame are driven to slide under the action of atmospheric pressure, the limiting rod is separated from the rubber ring, the rubber ring is not limited, the use of the charging head is safer, then the fixing frame is rotated, the charging head and the rubber ring are exposed, the charging head is more convenient and faster to take, the cross section of the rubber sleeve is butterfly-shaped, meanwhile, the rubber sleeve is more convenient and faster to reset by matching with the use of a reset spring, and meanwhile, a plurality of reset pads with wave-shaped sections are alternately arranged in the air bag, so that the air bag has better reset effect, and the limiting plate is driven to reset by enough power; the dog can rotate the deformation when gaseous, makes the gas pocket switch on, and when not using, the dog is effectual prevents that rainwater and sweeps from getting into the performance that the gas pocket influences the head that charges.
(3) According to the parking-assisting type charging pile, the supporting structure is fixed inside the charging pile body, the cable is convenient to fix due to the use of the supporting structure, abrasion caused by contact of the cable and the ground is effectively prevented, meanwhile, the cable is wound and unwound in a sliding mode, so that the operation is more labor-saving, the phenomenon that a charging head at the end part of the cable falls to the ground and is damaged due to misoperation of an operator is avoided, and the charging quality is improved, namely: when charging is needed, firstly, the one-way valve connected with the sliding sleeve is an air inlet valve, the other one-way valve is an exhaust valve, the driving rod is screwed, the driving rod threads drive the piston to slide with the supporting rod until the piston is abutted against the supporting rod, the diversion trench is conducted with the two one-way valves, further, the air pressure inside the sliding sleeve and the supporting rod is balanced, the anti-skid pad is not deformed, then, the driving rod is pulled to drive the supporting rod to slide, the cable is tiled to the electric automobile, meanwhile, the limiting sleeve rotates between the guide shaft and the supporting rod in the process of tiling the cable, further, the cable folding and unfolding effect is better, the cable is effectively prevented from being damaged, when the supporting rod needs to be temporarily fixed, the driving rod is driven, the driving rod threads drive the piston to slide with the supporting rod, the piston blocks the diversion trench, then, the, make the slipmat warp, the slipmat warp conflict bracing piece or sliding sleeve, and then make unable slip between two adjacent bracing pieces and the sliding sleeve, and then improved the stability in use, effectually prevent that cable and ground conflict from causing the damage, make the pulling cable more laborsaving simultaneously, avoided the head that charges to damage.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic structural diagram of an overall structure of an auxiliary parking type charging pile according to a preferred embodiment of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an enlarged view of the portion B shown in FIG. 1;
FIG. 4 is an enlarged view of the portion C shown in FIG. 3;
FIG. 5 is a schematic structural view of the support structure shown in FIG. 4;
FIG. 6 is a schematic structural view of the seal structure shown in FIG. 3;
fig. 7 is an enlarged view of the portion D shown in fig. 6.
In the figure: 1. limit structure, 11, the limiting plate, 12, the carriage, 13, the rubber sleeve, 14, reset spring, 15, first trachea, 16, the gasbag, 17, the second trachea, 18, the pad resets, 19, the clamp plate, 2, bearing structure, 21, the bracing piece, 22, the guiding axle, 23, the stop collar, 24, the check valve, 25, the slipmat, 26, the sliding sleeve, 27, the actuating lever, 28, the guiding gutter, 29, the piston, 3, fill the electric pile body, 4, seal structure, 41, the damping axle, 42, the rubber circle, 43, fixed frame, 44, the gas pocket, 45, the gag lever post, 46, the water conservancy diversion room, 47, the dog, 5, the head charges.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1-7, the parking-assisting charging pile of the present invention includes a limiting structure 1, a supporting structure 2, a charging pile body 3, a sealing structure 4 and a charging head 5; the charging pile body 3 used outdoors for charging the automobile is electrically connected with the charging head 5 used for connecting the electric automobile to charge the electric automobile; the sealing structure 4 used for limiting the charging head 5 is fixed on the charging head 5, and the sealing structure 4 is fixed inside the charging pile body 3; the supporting structure 2 for fixing the cable of the charging head 5 is arranged inside the charging pile body 3, and the supporting structure 2 is arranged at the bottom end of the sealing structure 4; seal structure 4 connect in being used for carrying out assistance-localization real-time and spacing to the car limit structure 1, just limit structure 1 with fill and set up perpendicularly between the electric pile body 3.
Specifically, limiting structure 1 includes limiting plate 11, carriage 12, rubber sleeve 13, reset spring 14, first trachea 15, gasbag 16, second trachea 17, reset pad 18 and clamp plate 19 for to the car slow down and fix a position carriage 12 with be used for providing the power fill and set up between the electric pile body 3 perpendicularly, the both ends of carriage 12's cross-section are triangle-shaped, the inside of carriage 12 is equipped with sliding connection's the limiting plate 11 that is used for fixing a position the tire of car, the cross-section that limiting plate 11 deviates from the one end of carriage 12 is the arc, limiting plate 11 with sliding connection between carriage 12, the bottom of limiting plate 11 is equipped with the cross-section for "protruding" font structure clamp plate 19, the bottom of clamp plate 19 is equipped with and is used for the shock attenuation gasbag 16, the inside of gasbag 16 is equipped with a plurality of wave that are used for assisting to reset pad 18 in turn, the second air pipe 17 penetrates through the supporting frame 12 and extends into the air bag 16, the second air pipe 17 is communicated with the air bag 16, the rubber sleeves 13 are arranged at two ends of the pressing plate 19, which are far away from the air bag 16, one ends of the rubber sleeves 13, which are far away from the pressing plate 19, are fixed on the supporting frame 12, the two rubber sleeves 13 are communicated, the cross section of each rubber sleeve 13 is butterfly-shaped, the plurality of return springs 14 are arranged in the rubber sleeves 13, the first air pipe 15 penetrates through the supporting frame 12 and extends to the rubber sleeves 13, and the first air pipe 15 is communicated with the rubber sleeves 13; the limiting structure 1 and the charging pile body 3 are vertically arranged, so that the charged vehicle running to one side of the charging pile body is subjected to speed reduction limiting, the speed reduction time is prolonged, the vehicle can be closed in a longer time response mode when arriving at a specified position, the parking of the vehicle is faster, the stress area of wheels is increased, accidents caused by forgetting to pull a hand brake are avoided, and the parking is safer; firstly fixing the support frame 12 on the ground through an expansion bolt, enabling the support frame 12 and the charging pile body 3 to be vertically arranged, then connecting the end parts of the first air pipe 15 and the second air pipe 17 to the sealing structure 4, wherein two ends of the cross section of the support frame 12 are triangular, the gradient of speed limit is delayed, the speed reduction distance is increased, when a vehicle runs to the support frame 12, the running speed of the vehicle is slowly reduced, an operator consciously determines that the vehicle reaches a parking place, under the inertia action of the vehicle, wheels of the vehicle enter an arc-shaped groove in the limiting plate 11, further speed limit is realized, the top end of the limiting plate 11 is arc-shaped, the structure of the wheels is conformed, the contact area of the wheels is increased, the resistance of the wheels is increased, and meanwhile, the limiting plate 11 and the support frame 12 are driven to slide under the gravity action of the vehicle, limiting plate 11 changes the effort of vehicle direction of travel into drive in the vertical direction limiting plate 11's bottom clamp plate 19's the deformation power of gasbag 16, and then be convenient for make better the stopping of vehicle be in on the limiting plate 11, make the slow shake of vehicle simultaneously, make operating personnel more be convenient for to know the vehicle arrival assigned position, make the parking more standard, the top surface of limiting plate 11 is the arc, has increased the resistance to the wheel of car, and the effectual driver that prevents forgets the hand brake emergence accident, makes the parking safe high-efficient more.
Specifically, the sealing structure 4 includes a damping shaft 41, a rubber ring 42, a fixing frame 43, an air hole 44, a limiting rod 45 and a flow guiding chamber 46, and is configured to symmetrically arrange two damping shafts 41 at two ends of the fixing frame 43 for accommodating the charging head 5, the damping shafts 41 penetrate through the charging pile body 3, the fixing frame 43 is rotatably connected with the charging pile body 3 through the damping shafts 41, the rubber ring 42 is fixed at an end portion of the charging head 5, the rubber ring 42 is engaged with the fixing frame 43, a plurality of air holes 44 of a cylindrical structure are arranged between the fixing frame 43 and the rubber ring 42, the second air pipe 17 is fixed to the fixing frame 43 with one end deviating from the airbag 16, the second air pipe 17 is communicated with the air hole 44, the flow guiding chamber 46 of an annular structure is arranged inside the fixing frame 43, the fixing frame 43 is circumferentially provided with a plurality of limiting rods 45 in an array manner, the limiting rods 45 are slidably connected with the fixing frame 43, one end of each limiting rod 45 extends to the flow guide chamber 46, the other end of each limiting rod 45 abuts against the rubber ring 42, the first air pipe 15 is fixed on the fixing frame 43, and the first air pipe 15 is communicated with the flow guide chamber 46; the sealing structure 4 is rotatably connected with the charging pile body 3, so that rainwater is effectively prevented from splashing on the charging head 5 after use, and the limiting structure 1 is matched for use, so that the charging head 5 cannot be taken out before the automobile runs to the limiting structure 1, the protection effect on the charging head 5 is better, the use safety of the charging pile is improved, and meanwhile, when the automobile runs to the limiting structure 1, airflow is generated on the sealing structure 4, so that dust is effectively prevented from being adhered to the charging head 5; namely: when the limiting plate 11 slides with the supporting frame 12, the pressing plate 19 is driven to abut against the air bag 16 to deform, the reset cushion 18 deforms, the accommodating cavity inside the air bag 16 becomes small, so that air is discharged to the air hole 44 in the fixing frame 43 through the second air pipe 17, air circulation near the charging head 5 is increased, dust is effectively prevented from being adhered to the charging head 5 to influence the charging effect, meanwhile, the pressing plate 19 drives the rubber sleeve 13 to stretch, meanwhile, the reset spring 14 extends to enlarge the accommodating cavity inside the rubber sleeve 13, meanwhile, the rubber sleeve 13 is conducted with the flow guide chamber 46 through the first air pipe 15, the pressure inside the flow guide chamber 46 is reduced, the limiting rod 45 is driven to slide with the fixing frame 43 under the action of atmospheric pressure, and the limiting rod 45 is separated from the rubber ring 42, it is right rubber circle 42 is not spacing, and then makes the use of head 5 that charges is safer, then rotates fixed frame 43 makes the head 5 that charges with rubber circle 42 exposes, makes the convenient and fast that takes of head 5 that charges, the cross-section of rubber sleeve 13 is butterfly form, the cooperation simultaneously reset spring 14's use makes the convenient and fast that resets of rubber sleeve 13, simultaneously the inside of gasbag 16 is equipped with a plurality of cross-sections in turn and is the wave structure the pad 18 that resets makes gasbag 16's the effect that resets is better, makes there is sufficient power drive limiting plate 11 resets.
Specifically, the sealing structure 4 further includes a stopper 47, and the fixing frame 43 is provided with the stopper 47 for sealing the air hole 44; when gas exists, the stop block 47 can rotate and deform to enable the air hole 44 to be communicated, and when the gas is not used, the stop block 47 effectively prevents rainwater and waste chips from entering the air hole 44 to influence the performance of the charging head 5.
Specifically, the supporting structure 2 includes a plurality of supporting rods 21, a guiding shaft 22, a limiting sleeve 23, a one-way valve 24, a non-slip mat 25, a sliding sleeve 26, a driving rod 27, a diversion trench 28 and a piston 29, one end of the sliding sleeve 26 of the hollow rectangular cylinder structure is fixed to the charging pile body 3, the supporting rods 21 of the sliding sleeve 26 are arranged in the sliding sleeve 26, two adjacent supporting rods 21 are connected in a sliding manner, the end portion of the supporting rod 21 is provided with the non-slip mat 25 arranged in a plurality of circumferential arrays, the thickness of the non-slip mat 25 is gradually reduced from two ends to the middle, the piston 29 of the sliding connection is arranged in one of the supporting rods 21 deviating from the end portion of the sliding sleeve 26, the driving rod 27 is connected to the supporting rods 21 and the piston 29 in a penetrating manner, the driving rod 27 is connected to the supporting rods 21 in a rotating manner, and the driving rod 27 is, the diversion trench 28 penetrates through one of the support rods 21 which is far away from the extreme end, the length of the diversion trench 28 is greater than that of the piston 29, the sliding sleeve 26 and one of the support rods 21 which is far away from the extreme end are both provided with one-way valve 24, one end of the support rod 21 which is far away from the sliding sleeve 26 is provided with the guide shaft 22 which is rotatably connected, and the limiting sleeve 23 for fixing a cable is fixed on the guide shaft 22; support structure 2 is fixed in fill electric pile body 3's inside, support structure 2's use is convenient for fix the cable, and the effectual cable that prevents causes wearing and tearing with the ground contact adopts gliding mode to receive and release the cable simultaneously, makes the operation more laborsaving, has avoided operating personnel maloperation to cause the cable tip the head that charges 5 drops to ground and damages, has improved the quality of charging, promptly: when charging is needed, firstly, the one-way valve 24 connected to the sliding sleeve 26 is an air inlet valve, the other one-way valve 24 is an air exhaust valve, the driving rod 27 is screwed, the driving rod 27 drives the piston 29 and the supporting rod 21 to slide through threads until the piston 29 is abutted to the supporting rod 21, the guide groove 28 is conducted with the two one-way valves 24, further, the air pressure inside the sliding sleeve 26 and the supporting rod 21 is balanced, the anti-skid pad 25 is not deformed, then the driving rod 27 is pulled, the driving rod 27 drives the supporting rod 21 to slide, cables are flatly laid on the electric automobile, meanwhile, the limiting sleeve 23 rotates between the guide shaft 22 and the supporting rod 21 in the process of laying the cables, further, the effect of the cables is better, the cables are effectively prevented from being damaged, when the supporting rod 21 needs to be temporarily fixed, the drive actuating lever 27, actuating lever 27 screw drive piston 29 with the bracing piece 21 slides, makes piston 29 blocks up guiding gutter 28, then continues to twist and moves actuating lever 27, piston 29 continues to slide, makes sliding sleeve 26 with the pressure increase of the inside of bracing piece 21 makes non slipping mat 25 warp, non slipping mat 25 deformation is contradicted bracing piece 21 perhaps sliding sleeve 26, and then makes adjacent two bracing piece 21 with unable slip between the sliding sleeve 26, and then improved stability in use, effectually prevent that cable and ground from contradicting and causing the damage, make the pulling cable more laborsaving simultaneously, avoided charging head 5 damages.
When the automobile charging pile is used, firstly, the supporting frame 12 is fixed on the ground through the expansion bolts, the supporting frame 12 is perpendicular to the charging pile body 3, then the end parts of the first air pipe 15 and the second air pipe 17 are connected to the sealing structure 4, two ends of the cross section of the supporting frame 12 are triangular, the gradient of speed limitation is delayed, the deceleration distance is increased, when the automobile runs to the supporting frame 12, the running speed of the automobile is slowly reduced, an operator consciously determines that the automobile arrives at a parking place, under the inertia effect of the automobile, the wheels of the automobile enter the arc-shaped grooves in the limiting plate 11, further speed limitation is realized, the top end of the limiting plate 11 is arc-shaped, the structure of the wheels is met, the contact area of the wheels is increased, the resistance of the wheels is increased, meanwhile, the limiting plate 11 and the supporting frame 12 are driven to slide under the gravity effect of the automobile, the limiting plate 11 converts the acting force in the running direction of the automobile into the deformation force of the, the automobile can be stopped on the limiting plate 11 better, and can shake slowly, so that an operator can know that the automobile reaches a designated position more conveniently, the automobile can be stopped more normally, the top surface of the limiting plate 11 is arc-shaped, the resistance to the wheels of the automobile is increased, the driver can be effectively prevented from forgetting to pull the hand brake, and the automobile can be stopped more safely and efficiently; when the limiting plate 11 and the supporting frame 12 slide, the pressing plate 19 is driven to abut against the air bag 16 to deform, the reset cushion 18 deforms, the accommodating cavity inside the air bag 16 becomes small, gas is exhausted to the air hole 44 in the fixing frame 43 through the second air pipe 17, air circulation near the charging head 5 is increased, dust is effectively prevented from being bonded on the charging head 5 to influence the charging effect, the pressing plate 19 drives the rubber sleeve 13 to stretch, the reset spring 14 extends to enable the accommodating cavity inside the rubber sleeve 13 to become large, the rubber sleeve 13 is communicated with the flow guide chamber 46 through the first air pipe 15 to enable the pressure inside the flow guide chamber 46 to be reduced, the limiting rod 45 and the fixing frame 43 are driven to slide under the action of atmospheric pressure, the limiting rod 45 is separated from the rubber ring 42, the rubber ring 42 is not limited, the charging head 5 is safer to use, then the fixing frame 43 is rotated to enable the charging head 5 and the rubber ring 42 to be exposed, the charging head 5 is more convenient and faster to take, the cross section of the rubber sleeve 13 is butterfly-shaped, the rubber sleeve 13 is more convenient and faster to reset by matching with the use of the reset spring 14, and meanwhile, a plurality of reset pads 18 with wave-shaped cross sections are alternately arranged in the air bag 16, so that the air bag 16 has better reset effect, and the limiting plate 11 is driven to reset by enough power; when gas exists, the stop block 47 can rotate and deform to conduct the air hole 44, and when the gas is not used, the stop block 47 effectively prevents rainwater and waste chips from entering the air hole 44 to influence the performance of the charging head 5; when charging is needed, firstly, the one-way valve 24 connected to the sliding sleeve 26 is an air inlet valve, the other one-way valve 24 is an exhaust valve, the driving rod 27 is screwed, the driving rod 27 drives the piston 29 to slide with the supporting rod 21 through threads until the piston 29 is abutted against the supporting rod 21, the diversion trench 28 is communicated with the two one-way valves 24, further, the air pressure inside the sliding sleeve 26 and the supporting rod 21 is balanced, the anti-skid pad 25 does not deform, then the driving rod 27 is pulled, the driving rod 27 drives the supporting rod 21 to slide, the cable is flatly laid on the electric automobile, meanwhile, the limiting sleeve 23 rotates between the guide shaft 22 and the supporting rod 21 in the process of laying the cable, further, the cable winding and unwinding effect is better, the cable is effectively prevented from being damaged, when the supporting rod 21 needs to be temporarily fixed, the driving rod 27 is driven, the driving rod 27, then continue to twist and move actuating lever 27, piston 29 continues to slide, makes the pressure increase of the inside of sliding sleeve 26 and bracing piece 21, makes slipmat 25 warp, and slipmat 25 warp and contradicts bracing piece 21 or sliding sleeve 26, and then makes unable the slip between two adjacent bracing pieces 21 and the sliding sleeve 26, and then has improved stability in use, and the effectual cable that prevents contradicts with ground and causes the damage, makes the pulling cable more laborsaving simultaneously, has avoided charging head 5 to damage.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.