CN110667414B

CN110667414B - Anti-creeping system based on charging pile

Info

Publication number: CN110667414B
Application number: CN201910989871.3A
Authority: CN
Inventors: 刘崇汉; 姚庆; 李�杰
Original assignee: Chongqing Guohan Energy Development Co Ltd
Current assignee: Chongqing Guohan Energy Development Co Ltd
Priority date: 2019-10-17
Filing date: 2019-10-17
Publication date: 2020-12-18
Anticipated expiration: 2039-10-17
Also published as: CN110667414A

Abstract

The invention relates to the technical field of charging equipment, in particular to an anti-creeping system based on a charging pile, which comprises a gun hanging seat in a box shape, wherein a jack for inserting a charging gun is arranged in the gun hanging seat; the baffle is provided with a card slot, the cross section of the card slot is in a right trapezoid shape, and a fixing part for fixing an IC card is arranged in the card slot; the gun hanging seat is connected with a wedge block which can be clamped into the inserting groove in a sliding mode, an IC card inductor is installed at one end, located far away from the wedge block, of the gun hanging seat, an electromagnetic lock is installed in the inserting hole, a first controller electrically connected with the IC card inductor is installed in the gun hanging seat, and the first controller is used for controlling opening and closing of the electromagnetic lock. By adopting the scheme of the invention, the problem of electric leakage caused by long-term exposure of the charging gun and the cable can be solved.

Description

Anti-creeping system based on charging pile

Technical Field

The invention relates to the technical field of charging equipment, in particular to a leakage-proof system based on a charging pile.

Background

Fill electric pile's effect and charge to electric automobile, its function is similar to the tanker aircraft of the inside of filling station, can fix on ground or wall, install in public building (public building, market, public parking area etc.) and residential quarter parking area or charging station, fill electric pile's input and alternating current network lug connection, the output is connected with the rifle that charges through the cable electricity, it is equipped with the card slot that is used for responding to the IC-card on the electric pile to fill, when needs use, the user inserts the IC-card (the card that charges) in the card slot, it can charge many electric automobile to fill in inserting the socket on the electric automobile with the rifle that charges.

Present fill electric pile includes the pile body and installs the rifle seat of hanging on the pile body, hangs and is equipped with the jack that is used for inserting the rifle that charges on the rifle seat, need insert in the jack when the rifle that charges does not use, avoids the head of the rifle that charges directly to expose in the outside, because the head of the rifle that charges probably is electrified, directly exposes and has the electric leakage risk in the outside.

However, the head of the charging gun can be inserted into the existing gun hanging seat, the rest part of the charging gun is still positioned outside the gun hanging seat, and in order to enable the charging gun to have enough moving distance to be inserted into an electric automobile, the cable is generally arranged to be long, when the charging gun is not used, the cable is accumulated on the ground, and is easy to age and damage after being exposed outside for a long time, so that electric leakage and electric shock are caused, particularly in rainy and snowy days, and the risk that the charging gun and the cable are exposed outside is large.

In addition, although all set up on filling electric pile and hang the rifle seat, still have the user and can not insert the rifle that charges back to on hanging the rifle seat after using up, but directly expose the rifle that charges externally, have and steal electric and electric leakage risk.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a leakage prevention system based on a charging pile, which aims to solve the problem of leakage risk caused by long-term exposure of a charging gun and a cable.

In order to achieve the purpose, the invention adopts the following technical scheme:

the anti-creeping system based on the charging pile comprises a gun hanging seat in a box shape, wherein a jack for inserting a charging gun is arranged in the gun hanging seat, the anti-creeping system also comprises a baffle plate which is connected to the opening of the gun hanging seat in a sliding way and is used for blocking the opening of the gun hanging seat, a winding roller is rotationally connected in the gun hanging seat, and a torsion spring is arranged between the winding roller and the inner wall of the gun hanging seat; the baffle is provided with a card slot, the cross section of the card slot is in a right trapezoid shape, and a fixing part for fixing an IC card is arranged in the card slot; the gun hanging seat is provided with a sliding chute, a wedge block which can be clamped into the card slot is connected in the sliding chute in a sliding mode, and an elastic part is fixed between the wedge block and the sliding chute; the gun hanging seat is provided with an IC card inductor at one end far away from the wedge block, an electromagnetic lock is arranged in the jack, a first controller electrically connected with the IC card inductor is arranged in the gun hanging seat, and the first controller is used for controlling the opening and closing of the electromagnetic lock.

Compared with the prior art, the invention has the following beneficial effects:

1. wire winding roller and jack are all sheltered from in hanging the rifle seat by the baffle, avoid charging rifle and cable to expose on the one hand and produce the electric leakage risk in the outside, and on the other hand sleet enters into the head or the dust entering of charging the rifle when also can avoid sleet weather.

2. The cable can drive the wire winding roller to rotate together when receiving pulling force, and the torsional spring twists reverse the energy storage this moment, and the rifle that charges is when using, owing to receive the effect of torsional spring, and the cable can keep taut state, reduces the contact on cable and ground, and then reduces the wearing and tearing of cable and the ground dust of adhesion. After charging, the rifle that charges is taken off from electric automobile, and the pulling force that the cable received reduces, and the torsional spring drives the reversal of winding roller and resets for on the cable twines back the winding roller again. Through setting up the winding roller with the cable winding on the winding roller, have better effect of accomodating to the cable. The damage that the long-time pile up winding of cable probably leads to outside is avoided, and then reduces the electric leakage risk.

3. When the gun hanging seat is blocked by the baffle plate, the wedge block is clamped into the card slot, when the charging gun needs to be used, the IC card is inserted into the card slot, the IC card pushes the wedge block to slide, and meanwhile, the fixing piece fixes the IC card in the card slot. Because the IC-card promotes the voussoir and slides, the voussoir no longer blocks the baffle, and the baffle can transversely slide, opens and hangs the rifle seat, and when the baffle drove the IC-card and slides to IC-card inductor department, IC-card inductor discernment IC-card signal, and first controller control electromagnetic lock is opened, can take off the rifle that charges and charge. Only the IC card inductor senses the IC card signal can the charging gun be taken down, the electric shock risk possibly caused by taking down the charging gun at will is avoided, and the electric larceny risk can be reduced to a certain extent.

Further, the fixing piece comprises a magnetic block which is connected to the side wall of the oblique side of the card slot in a sliding mode, and an electromagnet for attracting the magnetic block is fixed on the side wall, opposite to the magnetic block, of the card slot; and a pressure sensor is installed on the bottom wall of the jack and electrically connected with a second controller for controlling the on-off of the electromagnet.

Has the advantages that: the iron core and the magnetic block in the electromagnet have attraction effect, when the electromagnet is not electrified, the attraction effect between the iron core and the magnetic block is smaller than the acting force of the elastic piece on the wedge block, and the wedge block can push the magnetic block away to be clamped into the card slot. When the IC card is inserted into the card slot, the wedge block is gradually pushed into the sliding groove, the resistance between the magnetic block and the iron core is reduced, the magnetic block gradually slides to be close to the electromagnet, and then the IC card is fixed in the card slot.

When the pressure signal at the pressure sensor disappears, the second controller controls the electromagnet to be electrified, the attraction between the electromagnet and the magnetic block is greatly enhanced, and the IC card is prevented from being taken out or sliding out in the charging process. After the completion of charging, only will charge in the rifle inserts the jack, pressure sensor senses pressure signal and just can make the electro-magnet outage, otherwise can't take off the IC-card, avoids the user to charge the condition that the rifle was placed at will after finishing using and takes place, and then reduces electricity stealing and electric leakage risk.

Further, the winding roller cavity sets up, and the winding roller inner wall is equipped with the helicla flute, hangs the stock internal fixation and has a piston barrel, and sliding connection has the piston in the piston barrel, is fixed with the piston rod on the piston, and the tip sliding connection of piston rod is in the helicla flute, and the intercommunication has the gasbag on the piston barrel, and the gasbag is located between piston barrel terminal surface and the winding roller terminal surface, and one side that the gasbag is close to the winding roller is fixed with the friction pad.

Has the advantages that: similar cam structure is constituteed to helicla flute and piston rod, when the winding roller rotated, the piston rod slides in the helicla flute, the piston rod drives the piston and slides to being close to the gasbag direction, the inside gas of piston cylinder fills in the gasbag, the gasbag expands gradually, make the friction pad be close to the winding roller gradually, until friction pad and winding roller contact, the resistance increase that the winding roller rotated and received, also make the torsional spring drive the resistance increase of winding roller reversal simultaneously, avoid charging the rifle in the use, the torsional spring reversal leads to charging the interface of rifle and is not hard up. In addition, the situation that the cable is broken due to overlarge reverse acting force of the torsion spring and overlarge pulling force on the cable is avoided, and the electric leakage risk caused by damage of the cable is reduced.

In this scheme, when electric automobile is nearer apart from filling electric pile, the cable number of turns that need loosen is less, and the winding roller rotates the number of turns less promptly, and the torsional spring energy storage is also less this moment, even not increase frictional resistance, can not take place the condition of torsional spring reversal yet. And when electric automobile apart from filling electric pile far away, the number of turns that the winding roller needs to rotate is more, and the winding roller rotates the number of turns more, can fill the gas in the gasbag also more, and the expanded big more of gasbag, gasbag support on the winding roller, and the frictional resistance that causes the winding roller is also big more. That is to say, as the energy storage of the torsion spring is more and more, the resistance to the winding roller is also more and more, and the torsion spring can be better prevented from reversing in the use process.

In addition, the stroke of the piston cylinder is limited, after the gas in the piston cylinder is completely discharged into the air bag, the piston is abutted against the end face of the piston cylinder, the piston cannot move continuously, the piston rod cannot slide continuously, a limiting effect is further formed on the winding roller, and the winding roller cannot rotate continuously. The maximum number of turns of the winding roller can be controlled, and the phenomenon that the winding roller rotates too much to exceed the deformation capacity of the torsion spring is avoided.

Furthermore, both ends of the piston cylinder are sealed, an air inlet hole and an air outlet hole are formed in one side, away from the air bag, of the piston cylinder, an air inlet check valve is installed in the air inlet hole, an air outlet check valve is installed in the air outlet hole, the air outlet hole is communicated with an air blowing cover, and the opening of the air blowing cover faces the winding roller.

Has the advantages that: when the winding roller is reversely reset, the gas exhausted from the piston cylinder is blown to the winding roller through the blowing cover, and impurities such as dust and the like adhered to the cable are blown off.

Furthermore, snap rings are fixed at two ends of the winding roller, and the outer diameter of each snap ring is larger than that of the winding roller.

Has the advantages that: carry on spacingly to winding roller both ends through the snap ring, break away from the winding roller when avoiding the cable winding.

Furthermore, a groove is arranged on the snap ring, and a clamping rod capable of being inserted into the groove is fixed on the baffle plate.

Has the advantages that: when the baffle blocks and hangs the stack of arms, the kelly blocks the winding roller, avoids the winding roller to rotate by oneself and causes the cable loose, and when the baffle slides and keeps away from hanging the stack of arms, the kelly breaks away from the recess along with the baffle slides, and the winding roller can rotate according to the cable atress effect.

Further, the mounting includes the ejector pad of sliding connection on the lateral wall of one side of card slot slope, lies in the relative one side of ejector pad on the baffle and is equipped with the passageway of breathing in, and the passageway of breathing in communicates with card slot, hangs the rifle seat inner wall and is equipped with the interface channel with the passageway of breathing in intercommunication, and the inlet opening department intercommunication has the cover of breathing in, and the cover of breathing in keeps away from the one end and the interface channel intercommunication of inlet opening.

Has the advantages that: when the winding roller rotates forwards, the piston rod drives the piston to slide rightwards, the space of the right part of the piston cylinder is increased, the right part of the piston cylinder sucks air inwards through the air suction cover, air enters the air suction cover through the connecting channel and the air suction channel, negative pressure is formed at the opening of the air suction channel, the IC card is adsorbed in the card insertion slot, the IC card is tightly attached to the side wall of the card insertion slot, and the IC card is difficult to take out.

In this scheme, come to fix the IC-card through the negative pressure that gaseous formation, reduce in the card slot and set up magnetic part, and then reduce the influence of magnetic force to IC-card discernment.

Furthermore, a magnetic block is fixed above the card slot on the baffle, an electromagnet for adsorbing the magnetic block is fixed above the IC card inductor on the gun hanging seat, a pressure sensor is installed on the bottom wall of the jack, and the pressure sensor is electrically connected with a second controller for controlling the on-off state of the electromagnet.

Has the advantages that: when the pressure signal at the pressure sensor disappears, the second controller controls the electromagnet to be electrified, the attraction between the electromagnet and the magnetic block is greatly enhanced, and the baffle is fixed at the position. After the completion of charging, only will charge in the rifle inserts the jack, pressure sensor senses pressure signal and just can make the electro-magnet outage, otherwise can't close the baffle, and the baffle is difficult to slide, just also can't take off the IC-card, and then avoids the user to take place the condition that the rifle was placed at will charging after finishing using.

Drawings

FIG. 1 is an isometric view of an embodiment of the invention.

Fig. 2 is a front partial sectional view of an embodiment of the present invention.

FIG. 3 is an enlarged view of portion B of FIG. 2;

FIG. 4 is a sectional view taken along line A-A in FIG. 2 (example 1);

FIG. 5 is a sectional view taken along line A-A in FIG. 2 (example 2);

fig. 6 is an enlarged view of a portion C in fig. 5.

In the figure: the device comprises a gun hanging seat 1, a baffle plate 2, a card inserting groove 3, a wedge block 4, a charging gun 5, a cable 6, a winding roller 7, a clamping ring 8, a piston cylinder 9, a piston 10, a piston rod 11, an air bag 12, an air blowing cover 13, a friction pad 14, an IC card 15, a magnetic block 16, an electromagnet 17, an IC card inductor 18, a sliding groove 19, an air suction cover 20, a connecting channel 21, an air suction channel 22, a push block 23 and a groove 24.

Detailed Description

The invention is further described in detail below with reference to the accompanying drawings, and specific embodiments are given.

Example 1

As shown in fig. 1, the anti-creeping system based on the charging pile comprises a box-shaped hanging gun seat and a baffle 2 transversely connected to the opening of the hanging gun seat 1 in a sliding manner, wherein the longitudinal section area of the baffle 2 is larger than the area of the opening of the hanging gun seat 1, namely, the baffle 2 can completely shield the opening of the hanging gun seat 1.

Referring to fig. 2, the lower portion of the gun hanging seat 1 is rotatably connected with a winding roller 7 for winding a cable 6, two ends of the winding roller 7 are respectively fixed with a snap ring 8, and the outer diameter of the snap ring 8 is larger than that of the winding roller 7. The right end of the winding roller 7 is rotatably connected to the right side wall of the gun hanging seat 1, and a torsion spring is arranged between the right end of the winding roller 7 and the gun hanging seat 1. The end face of the clamping ring 8 on the left side of the winding roller 7 is provided with a groove 24, the baffle 2 is fixedly provided with a clamping rod, the clamping rod penetrates through the left side wall of the gun hanging seat 1 and can transversely slide relative to the left side wall of the gun hanging seat 1, and the right end of the clamping rod is in clearance fit with the groove 24.

Referring to fig. 3, the winding roller 7 is hollow, a spiral groove is formed in the inner wall of the winding roller 7, a piston cylinder 9 with two closed ends is fixed on the left side wall of the gun hanging seat 1, a piston 10 is connected in the piston cylinder 9 in a transverse sliding mode, a piston rod 11 is fixed on the piston 10, and the right end portion of the piston rod 11 extends into the winding roller 7 and is connected in the spiral groove in a sliding mode.

An air bag 12 is communicated with the right end surface of the piston cylinder 9, and a friction pad 14 is fixed on one side of the air bag 12 close to the winding roller 7. An air inlet hole and an air outlet hole are formed in the left part of the piston cylinder 9, an air inlet one-way valve is installed in the air inlet hole, and when the air pressure of the left part of the piston cylinder 9 is reduced, external air is supplemented into the left part of the piston cylinder 9 through the air inlet one-way valve; and an air outlet one-way valve is arranged in the air outlet hole, and when the air pressure at the left part of the piston cylinder 9 is increased, the air at the left part of the piston cylinder 9 is discharged through the air outlet one-way valve. The air outlet hole is communicated with an air blowing cover 13, and the opening of the air blowing cover 13 faces the winding roller 7.

As shown in fig. 4, the right side of the baffle 2 is provided with a card slot 3, the cross section of the card slot 3 is a right trapezoid, and the left side of the card slot 3 is the bevel edge of the right trapezoid. The right end of the gun hanging seat 1 is provided with a sliding groove 19, a wedge block 4 is connected in the sliding groove 19 in a sliding mode, a spring is fixed between the wedge block 4 and the bottom of the sliding groove 19, the cross section of the wedge block 4 is consistent with the cross section of the slot 3, and the wedge block 4 is in clearance fit with the slot 3.

A fixing member for fixing the IC card 15 is provided in the card slot 3, in this embodiment, the fixing member includes a magnetic block 16 slidably connected to a left side wall of the card slot 3, and an electromagnet 17 for attracting the magnetic block 16 and a power supply for energizing the electromagnet 17 are fixed on a right side wall of the card slot 3. Pressure sensor is installed to the jack diapire, and pressure sensor electricity is connected with and is used for controlling the second controller that electro-magnet 17 switched on or off, and is specific, and after the pressure signal of pressure sensor department disappeared, the second controller control electro-magnet 17 circular telegram, and pressure sensor senses pressure signal, and second controller control electro-magnet 17 cuts off the power supply.

Hang and lie in the left end on rifle seat 1 and install IC-card inductor 18, install the electromagnetic lock in the jack, hang and install the first controller of being connected with IC-card inductor 18 electricity in rifle seat 1, first controller is used for controlling opening and close of electromagnetic lock, and is concrete, IC-card inductor 18 discernment IC-card 15 signal, the unblock of first controller control electromagnetic lock, when IC-card 15 does not respond to IC-card 15 signal, first controller control electromagnetic lock is closed, fixes rifle 5 that charges in the jack.

Fill electric pile out of work the time, in rifle 5 inserts the jack of hanging rifle seat 1 that charges, the electromagnetic lock will charge rifle 5 locks in the jack, and cable 6 winding is on winding

roller

7, and 2 right side sliding block of baffle keep hanging rifle seat 1's opening, and at this moment, 4 IC-cards 15 of voussoir are gone into card slot 3 in, and voussoir 4 has limiting displacement to baffle 2 on horizontal for baffle 2 can't be slided on a left side. Baffle 2 keeps off in the rifle 5 outsidess that charges, carries out preliminary protection to the rifle 5 that charges, avoids the solarization to drench, avoids someone to take out the rifle 5 that charges to a certain extent simultaneously and places at will.

When need use and fill electric pile, insert IC-card 15 in card slot 3, when IC-card 15 is inserting card slot 3, promote voussoir 4 and slide in the spout 19, baffle 2 can left side slide, and along with voussoir 4 slides gradually in spout 19, magnetic path 16 slides out gradually and offsets with IC-card 15, avoid IC-card 15 to drop, when IC-card 15 slides to IC-card inductor 18 along with baffle 2 and locates, IC-card inductor 18 reads IC-card 15 signal, the unblock of first controller control electromagnetic lock.

After the electromagnetic lock unblock, can take out rifle 5 that charges, rifle 5 that charges takes out the back, and pressure sensor no longer accepts pressure signal, and second controller control electro-magnet 17 circular telegram attracts the very big enhancement of effect between electro-magnet 17 and the magnetic path 16, avoids taking out IC-card 15 or IC-card 15 roll-off in charging process.

After the IC card 15 slides along with the baffle plate 2 and is separated from the groove 24, the winding roller 7 can rotate. By pulling the cable 6, the winding roller 7 is stressed to rotate forwards, so that the cable 6 is loosened on the winding roller 7 for use. The helicla flute rotates along with winding roller 7, similar cam structure is constituteed to helicla flute and piston rod 11, when winding roller 7 corotation, piston rod 11 receives the effect of helicla flute to slide right, piston rod 11 drives piston 10 and slides right, the gas that the piston cylinder 9 the right side fills in gasbag 12, gasbag 12 expands gradually, make friction pad 14 be close to winding roller 7 gradually, until friction pad 14 and winding roller 7 contact, the resistance that winding roller 7 rotated and received increases, also make the torsional spring drive the resistance increase of 7 reversals of winding roller simultaneously, avoid charging rifle 5 in the use, the torsional spring reversal leads to charging rifle 5's the interface that charges to become flexible.

After charging is completed, the charging gun 5 is inserted into the jack, and the electromagnet 17 is powered off after the pressure sensor receives a pressure signal. At this time, the tension of the charging gun 5 on the cable 6 disappears, the torsion spring overcomes the resistance of the friction pad 14 to drive the winding roller 7 to rotate reversely and reset, the cable 6 is wound back on the winding roller 7 again, in the process, the piston rod 11 drives the piston 10 to move leftwards, the gas discharged from the left part of the piston cylinder 9 is blown to the winding roller 7 through the blowing cover 13, and impurities such as dust and the like adhered to the cable 6 are blown off. Finally, slide the baffle 2 to the right, so that the baffle 2 blocks the lance holder 1 again.

When the baffle 2 slides to the wedge 4, the right end of the baffle 2 pushes the wedge surface of the wedge 4 to slide, so that the wedge 4 slides into the sliding groove 19, when the card slot 3 slides to the wedge 4, the wedge 4 is pushed into the card slot 3 by the IC card 15 under the action of the spring, the IC card 15 is pushed out, and the situation that a user forgets to take out the IC card 15 is avoided.

Example 2

As shown in fig. 5 and fig. 6, the present embodiment differs from embodiment 1 in that: the setting of mounting and second controller is different. Concretely, the mounting includes the ejector pad 23 of horizontal sliding connection on the left side wall of card slot 3, and the right side is equipped with the passageway of breathing in 22 on baffle 2, and the passageway of breathing in 22 and card slot 3 intercommunication, the internal wall of the stock seat of hanging 1 is equipped with the interface channel 21 with the passageway of breathing in 22 intercommunication, and the air inlet department intercommunication has the cover of breathing in 20, and the cover of breathing in 20 keeps away from the one end and the interface channel 21 intercommunication of inlet port.

Lie in card slot 3 tops on baffle 2 and be fixed with the magnetic path (not shown in the figure), it is fixed with the electro-magnet (not shown in the figure) that is used for adsorbing the magnetic path and the power of supplying power magnet circular telegram to be located IC-card inductor 18 top on rifle seat 1 to hang, pressure sensor is installed to the jack diapire, pressure sensor electricity is connected with the second controller that is used for controlling the electro-magnet circular telegram, and is concrete, the pressure signal of pressure sensor department disappears the back, the circular telegram of second controller control electro-magnet, pressure sensor senses pressure signal, the circular telegram of second controller control electro-magnet.

The scheme of the embodiment is different from the scheme of the embodiment 1 in the using process that: after the charging gun 5 is taken down, the second controller controls the electromagnet to be electrified, the electromagnet attracts the magnetic block to fix the baffle 2 at the position, and the air suction channel 22 and the connecting channel 21 are aligned and communicated. When the winding roller 7 rotates forwards, the piston rod 11 drives the piston 10 to slide rightwards, the space of the right part of the piston cylinder 9 is enlarged, the right part of the piston cylinder 9 sucks air inwards through the air suction cover 20, air enters the air suction cover 20 after passing through the connecting channel 21 and the air suction channel 22, negative pressure is formed at the opening of the air suction channel 22, the IC card 15 is adsorbed in the card slot 3, the IC card 15 is tightly attached to the side wall of the card slot 3, and the IC card 15 is difficult to take out. When the charging gun 5 is inserted into the jack, the pressure sensor senses a pressure signal to enable the electromagnet to be powered off, the baffle 2 can be slid to the right, the air suction channel 22 is communicated with the outside after the baffle 2 slides, the negative pressure state at the position is damaged, and the IC card 15 can be taken out conveniently.

In this embodiment, compared to embodiment 1, the magnetic material is less provided in the card insertion slot 3, and the influence of the magnetic force on the identification of the IC card 15 is further reduced.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims

1. Anticreep system based on fill electric pile is equipped with the rifle male jack that supplies to charge in hanging the rifle seat including the rifle seat that hangs that is the box form, its characterized in that: the gun hanging seat is rotatably connected with a winding roller, and a torsion spring is arranged between the winding roller and the inner wall of the gun hanging seat; the baffle is provided with a card slot, the cross section of the card slot is in a right trapezoid shape, and a fixing part for fixing an IC card is arranged in the card slot; the gun hanging seat is provided with a sliding chute, a wedge block which can be clamped into the card slot is connected in the sliding chute in a sliding mode, and an elastic part is fixed between the wedge block and the sliding chute; an IC card sensor is arranged at one end, far away from the wedge block, of the gun hanging seat, an electromagnetic lock is arranged in the jack, a first controller electrically connected with the IC card sensor is arranged in the gun hanging seat, and the first controller is used for controlling the opening and closing of the electromagnetic lock;

the winding roller is arranged in a hollow mode, a spiral groove is formed in the inner wall of the winding roller, a piston cylinder is fixed in the gun hanging seat, a piston is connected in the piston cylinder in a sliding mode, a piston rod is fixed on the piston, the end portion of the piston rod is connected in the spiral groove in a sliding mode, an air bag is communicated with the piston cylinder and is located between the end face of the piston cylinder and the end face of the winding roller, and a friction pad is fixed on one side, close to the winding roller.

2. The charging pile-based anti-creeping system according to claim 1, wherein: the fixing piece comprises a magnetic block which is connected to the side wall of one inclined side of the card slot in a sliding mode, and an electromagnet for attracting the magnetic block is fixed on the side wall, opposite to the magnetic block, of the card slot; and a pressure sensor is installed on the bottom wall of the jack and electrically connected with a second controller for controlling the on-off of the electromagnet.

3. The charging pile-based anti-creeping system according to claim 1, wherein: both ends of the piston cylinder are sealed, an air inlet hole and an air outlet hole are formed in one side, away from the air bag, of the piston cylinder, an air inlet check valve is installed in the air inlet hole, an air outlet check valve is installed in the air outlet hole, the air outlet hole is communicated with an air blowing cover, and the opening of the air blowing cover faces the winding roller.

4. The charging pile-based anti-creeping system according to claim 1, wherein: clamping rings are fixed at two ends of the winding roller, and the outer diameter of each clamping ring is larger than that of the winding roller.

5. The charging pile-based anti-creeping system according to claim 4, wherein: the clamping ring is provided with a groove, and a clamping rod capable of being inserted into the groove is fixed on the baffle.

6. The charging pile-based anti-creeping system according to claim 3, wherein: the fixing piece comprises a push block which is connected to the side wall of one side, inclined to the insertion groove, of the sliding block, an air suction channel is arranged on one side, opposite to the push block, of the baffle and communicated with the insertion groove, a connecting channel communicated with the air suction channel is arranged on the inner wall of the gun hanging seat, an air suction cover is communicated with the air inlet hole, and one end, far away from the air inlet hole, of the air suction cover is communicated with the connecting channel.

7. The charging pile-based anti-creeping system according to claim 6, wherein: a magnetic block is fixed above the card insertion slot on the baffle, an electromagnet used for adsorbing the magnetic block is fixed above the IC card inductor on the gun hanging seat, a pressure sensor is installed on the bottom wall of the insertion hole, and the pressure sensor is electrically connected with a second controller used for controlling the on-off state of the electromagnet.