CN113954670B

CN113954670B - Stake of charging of double gun

Info

Publication number: CN113954670B
Application number: CN202111367496.2A
Authority: CN
Inventors: 王春晓; 张世伟; 葛晓凤; 葛风格
Original assignee: Tibet Shifeng Gaoke Energy Technology Co ltd
Current assignee: Tibet Shifeng Gaoke Energy Technology Co ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2023-04-14
Anticipated expiration: 2041-11-18
Also published as: CN113954670A

Abstract

The utility model provides a stake of charging of rush-harvesting and rush-harvesting, including setting up the subaerial pile body perpendicularly, the subaerial excavation has the foundation ditch, it is equipped with pile foundation support pipe assembly to be equipped with pile body bottom in the foundation ditch, the pile body bottom is equipped with the easy installation elastic component of inflation formula, the easy installation elastic component of inflation formula is fixed to be set up inside pile foundation support pipe assembly, be equipped with between pile body bottom and the pile foundation support pipe assembly top and support the elastic sealing component, the inside intercommunication of pile body and pile foundation support pipe assembly is and be equipped with ventilation formula temperature regulation system, be equipped with the cooling heat dissipation system who is used for making the charging rifle and corresponds the inside cooling of charging cable who connects in the pile body, be equipped with the adsorbable safe charging rain blocking device that is used for sheltering from the charging mouth on the surface of the vehicle body in the rifle of charging rifle. The anti-collision device is convenient to install, easy to maintain, good in environmental adaptability and capable of achieving a certain anti-collision effect, the temperature inside the pile body can be conveniently adjusted, the charging gun can be cooled when in work, and potential safety hazards caused by the fact that water flows into a charging port when the charging gun is charged in rainy days are avoided.

Description

Stake of charging of rush-harvesting and rush-planting

Technical Field

The invention belongs to the technical field of new energy vehicles, and particularly relates to a double-gun charging pile.

Background

Along with new energy automobile's increase year by year, the electric pile that fills that charges for new energy automobile also increases thereupon, fills the tanker aircraft of electric pile function similar to the filling machine of filling station inside, installs in charging station, public parking area and residential quarter, fills the input and the alternating current network lug connection of electric pile, and the output passes through the charging cable and connects the charging plug and be used for charging for new energy steam. The existing charging pile has the following problems or defects: 1) The charging pile installed on the ground has no unified standard when being fixed on the ground, is complex to install and is not firm in fixation; 2) When a novice driver scratches or collides with the charging pile, the conventional charging pile is usually fixedly connected and has no buffer property, so that the charging pile is damaged due to slight impact; 3) Due to large climate difference in various regions of China, the interior of the existing charging pile cannot be subjected to temperature regulation according to temperature conditions, and in regions which are severe cold in winter and extremely hot in summer, the service life of components in the charging pile can be shortened, and meanwhile, certain potential safety hazards are caused; 4) Two guns that charge of present double gun charging pile are when charging simultaneously, and the head that charges and the charging cable that charges generate heat great, have great potential safety hazard. 5) When the charging plug of the charging gun is inserted into a charging port of an automobile, if rain falls, rainwater can flow into the charging port along the side surface of the automobile body, and great potential safety hazards are also provided.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides the double-gun charging pile which is convenient to install, can bear slight impact, can adjust the temperature according to the weather temperature, can cool the heating of a charging gun and is safe to charge in rainy days.

The double-gun charging pile comprises a pile body vertically arranged on the ground, the exterior of the pile body is respectively connected with a charging gun through two charging cables, a foundation pit is excavated below the ground, a pile foundation support pipe assembly is arranged at the bottom of the pile body in the foundation pit, an expansion type easily-installed elastic assembly is arranged at the bottom of the pile body and fixedly arranged in the pile foundation support pipe assembly, a supporting elastic sealing assembly is arranged between the bottom of the pile body and the top of the pile foundation support pipe assembly, the pile body and the pile foundation support pipe assembly are communicated with each other and are provided with a ventilation type temperature adjusting system, a cooling and heat dissipating system used for cooling the charging gun and the charging cables correspondingly connected with the charging gun is arranged in the pile body, and a safe charging rain shielding device which can be adsorbed on the surface of a vehicle body and is used for shielding a charging port is arranged in the gun head of the charging gun.

The pile foundation support pipe assembly comprises a base, a plurality of vertical pipes and a cover plate, wherein the base and the cover plate are square and are arranged horizontally, the base is horizontally arranged at the bottom of a foundation pit, all the vertical pipes are vertically arranged on the upper surface of the base, one vertical pipe is vertically arranged at the center of the upper surface of the base, the other vertical pipes are arranged along the circumference of the central vertical pipe in an array mode, the upper part of the inner circle of each vertical pipe is provided with a limiting structure, the inner circle of the limiting structure is a conical arc surface with a thin upper part and a thick lower part, the upper surface of the base is provided with a lower positioning convex column which extends into the lower port of each vertical pipe and is used for positioning the position of each vertical pipe, the cover plate is horizontally arranged on the upper end surface of each vertical pipe, the lower surface of the cover plate is provided with an upper positioning convex column which extends into the upper port of each vertical pipe, the upper positioning convex column on the cover plate is provided with an upper through hole and a lower through hole, the lower positioning convex column at the center of the base is internally provided with a central air hole with an opening at the top, the lower positioning convex column at the edge of the base is internally provided with an edge air hole with an open at the top, and a radial air hole for connecting the central air hole with the edge of the central air hole and the radial direction of the edge of the base; and concrete is poured in the foundation pit to connect all the vertical pipes into a whole.

Each expansion type easily-installed elastic component is provided with a set of expansion type easily-installed elastic component in each vertical pipe, each expansion type easily-installed elastic component comprises a central pipe which is coaxially arranged in each vertical pipe in the same direction, the excircle of the lower end of each central pipe is in threaded connection with a fixed connecting sleeve, the excircle of the upper end of each central pipe is in sliding connection with a movable connecting sleeve and a pressing sleeve which is positioned on the upper portion of each movable connecting sleeve, the diameters of the fixed connecting sleeve and the movable connecting sleeve are smaller than the inner diameter of a through hole in a cover plate and the inner diameter of the uppermost port of a limiting structure, a plurality of spring steel bars are arranged between the fixed connecting sleeve and the movable connecting sleeve, and all the spring steel bars are uniformly arranged in the circumferential direction of the central pipes; the upper end of the central tube upwards penetrates through a through hole in the cover plate and a bottom plate of the pile body in sequence, and then is connected with a fastening nut in a threaded manner, the fastening nut is screwed, the central tube moves upwards, the lower end of the fastening nut is in compression joint with the upper surface of the bottom plate of the pile body, the lower surface of the bottom plate of the pile body is in compression joint with a pressing sleeve, the lower end of the pressing sleeve is in compression joint with the upper end of a movable connecting sleeve, the distance between the movable connecting sleeve and a fixed connecting sleeve is gradually reduced, all spring steel bars expand outwards to form an ellipsoid shape along the radial direction of the central tube simultaneously, until all the spring steel bars are in compression joint with the inner wall of the vertical tube, and meanwhile, the conical arc surface of the upper limiting structure of the inner wall of the vertical tube is in compression joint with the outer side of the upper part of the spring steel bars.

A lower annular groove with an open top is formed in the fixed connecting sleeve, lower elastic positioning blocks equal to the spring steel bars are fixedly arranged on the fixed connecting sleeve on the outer side wall of an upper port of the lower annular groove, the lower elastic positioning blocks are uniformly arranged along the circumferential direction of the lower annular groove, the cross section of each lower elastic positioning block is L-shaped, the outer end of a horizontal section of each lower elastic positioning block is fixedly connected with the outer side wall of an upper port of the lower annular groove, a vertical section of each lower elastic positioning block extends downwards into the lower annular groove, a lower accommodating cavity is formed between the lower end of each lower elastic positioning block and the bottom of the lower annular groove, a lower inserting annular channel is formed by the vertical section of each lower elastic positioning block and the inner side wall of the lower annular groove, a lower limiting guide rib protruding downwards in the lower inserting annular channel is arranged at the lower end of each lower elastic positioning block, and the distance between the lower limiting guide rib and the inner side wall of the lower annular groove is gradually reduced from top to bottom; lower limiting arc-shaped bulges which are contacted with two sides of the lower elastic positioning block are arranged on the inner side wall of the lower circular groove and on two sides of the lower inserting annular channel;

an upper annular groove with an open bottom is formed in the movable connecting sleeve, an upper elastic positioning block which is in one-to-one correspondence with the lower elastic positioning block is fixedly arranged on the outer side wall of a lower port of the upper annular groove on the movable connecting sleeve, the cross section of the upper elastic positioning block is L-shaped, the outer end of the horizontal section of the upper elastic positioning block is fixedly connected with the outer side wall of the lower port of the upper annular groove, the vertical section of the upper elastic positioning block upwards extends into the upper annular groove, an upper accommodating cavity is formed between the upper end of the upper elastic positioning block and the bottom of the upper annular groove, an upper inserting annular channel is formed by the upper elastic positioning block and the inner side wall of the upper annular groove, an upper limiting guide protruding edge protruding upwards in the inserting annular channel is arranged at the upper end of the upper elastic positioning block, and the distance between the upper limiting guide protruding edge and the inner side wall of the upper annular groove is gradually increased from top to bottom; the inner side wall of the upper circular groove is provided with upper limiting arc bulges which are contacted with two sides of the upper elastic positioning block on two sides of the upper inserting annular channel.

The lower end of the spring steel bar is provided with a lower inserting barb, and the lower inserting barb extends into the lower accommodating cavity along the lower inserting annular channel to be clamped and matched with the lower limiting guide convex edge; the upper end of the spring steel bar is provided with an upper inserting barb which extends into the upper accommodating cavity along the upper inserting annular channel to be matched with the upper limiting guide convex edge in a clamping manner.

The supporting elastic sealing assembly comprises a first compression spring, a second compression spring, a sealing base plate and a rubber sealing plate, wherein the first compression spring and the sealing base plate are sleeved on the vertical pipe, the sealing base plate plugs the through hole in the cover plate, the upper end and the lower end of the first compression spring are respectively in compression joint with the bottom plate of the pile body and the sealing base plate, the upper end of the second compression spring is fixedly arranged on the lower surface of the bottom plate of the pile body, and the lower end of the second compression spring is in compression joint with the upper surface of the cover plate; the rubber seal plate is equipped with four, and four rubber seal plates set up respectively in pile body side lower part, and rubber seal plate medial surface bonds and fixes as an organic whole through the screw with the pile body side, and the side forms tang seal structure with the apron side under the rubber seal plate.

The pile body is internally provided with four layers of clapboards from top to bottom, each layer of clapboard is provided with a plurality of air holes, and the inner cavity of the pile body is sequentially divided into a first mounting cavity, a second mounting cavity, a third mounting cavity, a fourth mounting cavity and a fifth mounting cavity from top to bottom by the four layers of clapboards;

the ventilation type temperature adjusting system comprises a ventilation temperature sensor, an exhaust fan, a first exhaust pipe, a second exhaust pipe, a third exhaust pipe, a fourth exhaust pipe, a first semiconductor refrigerating sheet, a second semiconductor refrigerating sheet and an air filter element; the ventilation temperature sensor is arranged in the third mounting cavity;

the exhaust fan is arranged in the fifth mounting cavity, an exhaust opening of the exhaust fan is connected with an upper end opening of a central tube in the central vertical tube through a connecting hose, an exhaust opening is formed in the side part of the fifth mounting cavity on the pile body, a dust screen is arranged on the inner wall of the exhaust opening, the air outlet of the exhaust fan is connected with two air heat exchangers through a three-way pipeline, and outlets of the two air heat exchangers are connected with the exhaust opening through exhaust pipes; the first exhaust pipe, the second exhaust pipe, the third exhaust pipe and the fourth exhaust pipe are respectively vertically arranged at the edges and corners in the pile body, the lower ends of the first exhaust pipe, the second exhaust pipe, the third exhaust pipe and the fourth exhaust pipe are respectively connected with the upper ports of other four central pipes in a one-to-one correspondence manner through hose elbows, the upper port of the first exhaust pipe is positioned in the first mounting cavity, the upper port of the second exhaust pipe is positioned in the second mounting cavity, the upper port of the third exhaust pipe is positioned in the third mounting cavity, and the upper port of the fourth exhaust pipe is positioned in the fourth mounting cavity; the top of the pile body is provided with a sunshade rain shed, the air filter element is arranged at the center of the top surface of the pile body below the sunshade rain shed, and the top of the pile body is provided with a plurality of air holes below the air filter element.

The top and the peripheral side walls of the pile body are of three-layer structures, the middle layer is a heat insulation layer, the outer layer is made of aluminum alloy, and the inner layer is made of PPS plastic; the inner layer and the middle layer of the left side wall of the first installation cavity are provided with a left installation groove, the first semiconductor refrigeration piece is arranged in the left installation groove, and the refrigeration surface of the first semiconductor refrigeration piece is in contact with the inner surface of the outer layer; the inner layer and the middle layer of the right side wall of the first mounting cavity are provided with right mounting grooves, the second semiconductor refrigerating sheet is arranged in the right mounting groove, and the heating surface of the second semiconductor refrigerating sheet is in contact with the inner surface of the outer layer;

a left air deflector with a lower left and a higher right and a right air deflector with a higher left and a lower right are arranged in the first mounting cavity, the right side edge of the left air deflector and the left side edge of the right air deflector are butted and connected to the top of the pile body at the same time, one half of air holes are positioned above the left air deflector, the other half of air holes are positioned above the right air deflector, a hot air flow gap is formed between the left side edge of the left air deflector and the upper part of the heating surface on the right side of the first semiconductor refrigerating sheet, and a cold air flow gap is formed between the right side edge of the right air deflector and the upper part of the refrigerating surface on the left side of the second semiconductor refrigerating sheet;

a left electric push rod is arranged on the inner wall of the top of the pile body above the left air deflector and connected with a left valve plate for opening and closing the left air hole; the inner wall of the top of the pile body is provided with a right electric push rod above the right air deflector, and the right electric push rod is connected with a right valve plate for opening and closing the right air hole.

The cooling system includes the oil pump, coil pipe radiator and the temperature sensor that charges, the temperature sensor that charges establishes in the rifle head of rifle that charges, the oversheath of the cable that charges is inside to be equipped with a plurality of groups honeycomb ducts along the circumferencial direction, every group honeycomb duct includes a feed liquor pipe and one returns the liquid pipe, be equipped with the annular chamber in the insulating bush of the rifle head excircle of rifle that charges, the one end of every group honeycomb duct all communicates with the annular chamber, the entrance point of the feed liquor pipe of every group honeycomb duct is through the exit linkage of first collecting pipe with coil pipe radiator, the exit end of the liquid pipe that returns of every group honeycomb duct is through the access linkage of second collecting pipe with the oil pump, the access linkage of oil pump through a section high-pressure hose with coil pipe radiator, oil pump and coil pipe radiator set up in the pile body, the lateral wall outside heat dissipation that the pile body is hugged closely to the coil pipe radiator.

The safe charging rain shielding device comprises a storage box arranged at the top of a gun head of a charging gun, a roller is rotatably arranged in the storage box, a torsion spring is arranged between a roller center shaft and the storage box, a waterproof cloth is wound on the excircle of the roller after being folded, the movable end outside the waterproof cloth is connected with two flexible rubber plates, the waterproof cloth is connected with one side of each flexible rubber plate, a handle is arranged on the upper side of each flexible rubber plate, the other side of each flexible rubber plate is of a plane structure used for adsorbing a shell above a charging port of an automobile, the two flexible rubber plates are connected through hinges, a plurality of small magnet pieces are uniformly embedded in the flexible rubber plates, when the two flexible rubber plates are unfolded through the hinges, the waterproof cloth connected with the flexible rubber plates also forms an arc cover shape with high middle and low two sides along with the unfolding, a groove used for placing the folded flexible rubber plates is arranged at the top of the storage box, a channel used for passing through the waterproof cloth is arranged at the bottom of the groove, an iron piece used for adsorbing the small magnet pieces is arranged in the storage box when the flexible rubber plates are placed in the groove, a box cover used for covering the groove is arranged at the top of the storage box, and a rainwater drain hole used for draining the storage box is arranged at the bottom of the storage box.

Adopt above-mentioned technical scheme, when the installation fills electric pile, the subaerial foundation ditch of digging certain degree of depth of present assigned position, pour one deck mortar in the foundation ditch bottom and make the foundation ditch bottom keep the level, then place base (prefabricated reinforced concrete structure) on the mortar layer of foundation ditch bottom, place the riser on the base perpendicularly, lower location projection stretches into in the riser lower port, the riser keeps vertical state, then use the baffle to shelter from every riser upper port, avoid falling into debris in the riser, then pour the concrete in the foundation ditch, until the concrete of pouring flushes with the riser upper end, guarantee the straightness that hangs down of every riser when the compaction concrete, make all risers and foundation ditch solidification be connected as an organic whole, take off the baffle after that, place the apron on all risers, the last location projection of apron lower surface stretches into in the riser upper port, can inject the stability of apron in the horizontal direction like this. Then the upper end of the assembled expansion type easily-installed elastic component is connected with a bottom plate of a pile body, one or more door bodies for opening and closing five installation cavities are arranged on the side portion of the pile body, the door bodies are opened, a sealing cushion plate and a first compression spring are sleeved outside a pressing sleeve on the excircle of the vertical pipe, the upper end of the central pipe penetrates through an installation hole reserved on the bottom plate and extends into a fifth installation cavity, the upper end portion of the central pipe is screwed with a fixing nut to prevent the whole expansion type easily-installed elastic component from sliding downwards, then the lower ends of the central pipes of all the expansion type easily-installed elastic components penetrate through a through hole on a cover plate and extend into the vertical pipe, a fixing connecting sleeve and a spring steel bar also enter into the vertical pipe until the lower surface of the bottom plate is pressed on the first compression spring, the lower end of the first spring presses the sealing cushion plate to the upper surface of the cover plate, the sealing cushion plate seals the through hole on the cover plate, and the lower end of a second compression spring fixedly connected with the lower surface of the bottom plate is pressed with the upper surface of the cover plate, then, screwing all the fastening nuts in sequence, enabling a central tube in threaded connection with the fastening nuts to move upwards, enabling the central tube to drive a fixed connecting sleeve at the lower end to move upwards, enabling the lower end of a pressing sleeve to press against a movable connecting sleeve, limiting the movable connecting sleeve to be incapable of moving upwards, enabling the distance between the fixed connecting sleeve and the movable connecting sleeve to gradually decrease, enabling a spring steel bar to be compressed and expand along the radial direction until the spring steel bar expands to be pressed against the inner wall of the vertical tube, enabling the outer side of the upper portion of the spring steel bar to be blocked by a limiting structure at the upper portion of the inner circle of the vertical tube, not screwing the fastening nuts, screwing the rest fastening nuts in the same mode to enable the height of the threaded connection position of the fastening nuts and the vertical tube to be consistent, enabling the first compression spring and the second compression spring to be compressed to a certain degree, enabling the lower side edges of the four rubber sealing plates to be in pressure connection with the cover plate and form a spigot sealing structure with the upper side edge of the cover plate, rain water is prevented from entering between the cover plate and the bottom plate. And then, an air suction opening of the exhaust fan is connected with the upper end opening of the central pipe in the central vertical pipe through a connecting hose, and the lower ends of the first air suction pipe, the second air suction pipe, the third air suction pipe and the fourth air suction pipe are respectively connected with the upper end openings of the other four central pipes in a one-to-one correspondence mode through hose elbows.

When a novice driver drives a car and scratches or slightly impacts the pile body, due to the arrangement of the spring steel bar, the first compression spring and the second compression spring, a certain buffering effect is achieved on the impact on the pile body, the pile body can incline at a certain angle, and the safety and reliability of the pile body and internal electric elements are effectively protected. The rubber sealing plate can be replaced after being damaged by impact force.

The second installation cavity, the third installation cavity and the fourth installation cavity in the pile body are used for installing electrical elements such as an incoming line breaker, a surge protector, a charging module, a cooling fan, a controller, a vacuum contactor, a relay and a fuse, and are arranged in different installation cavities according to installation positions.

In cold winter, especially in northern areas of China, for example, when a set ventilation temperature sensor monitors that the temperature in a pile body is lower than-10 ℃, a controller sends a signal to instruct a right electric push rod to extend to drive a right valve plate to close a right air hole, a left electric push rod to contract to drive a left valve plate to close a left air hole, meanwhile, a first semiconductor refrigeration sheet and an exhaust fan are electrified to start, cold air is filtered by an air filter element and then enters a first installation cavity through the air holes, air flow is blown to a heating surface of the first semiconductor refrigeration sheet under the flow guide of a left air deflector, the air is heated and then enters each installation cavity downwards through air holes in four layers of partition plates, hot air in each installation cavity then enters a central pipe downwards through each exhaust pipe, then enters an edge air hole and a radial air hole in a base, finally is collected to a central air hole, then enters the exhaust fan upwards from a central pipe in a central vertical pipe, then is sent to two air heat exchangers through the exhaust fan, the air exchangers absorb heat, and then the cold air is discharged through exhaust ports. The heat that air heat exchanger gived off is inside the fifth installation cavity, because the air intake that all is equipped with the exhaust column in four installation cavities above, therefore the inside hot-air of fifth installation cavity can upwards get into the fourth installation cavity through the gas pocket on the baffle of lower floor, and three installation cavity above reentrant reaches the circulation flow of hot-air in the pile body. Thereby realizing the heating of the interior of the pile body.

In hot summer, for example, when a ventilation temperature sensor is set to monitor that the temperature in the pile body is higher than 45 ℃, the controller sends a signal to instruct the left electric push rod to extend to drive the left valve plate to close the air holes on the left side, the right electric push rod to contract to drive the right valve plate to open the air holes on the right side, meanwhile, the second semiconductor refrigerating sheet and the exhaust fan are electrified to start, external air is filtered by the air filter element and then enters the first mounting cavity through the air holes, air flow blows the surface of the refrigerating surface of the second semiconductor refrigerating sheet under the guide of the right air deflector, the air is cooled and then enters the mounting cavities through the air holes in the four layers of partition plates, the air in the mounting cavities downwards enters the central pipe through the exhaust pipes, then enters the edge air holes and the radial air holes in the base, finally is collected to the central air hole, then enters the exhaust fan upwards through the central pipe in the central vertical pipe, and then is sent into the two air heat exchangers through the exhaust fan, and the air heat exchangers exchange the hot air in the fifth mounting cavity with the low-temperature air in the interior and exhaust port to exhaust the air. The low-temperature air after the heat exchange of the air heat exchanger is arranged in the fifth mounting cavity, and the air inlets of the exhaust pipes are arranged in the four mounting cavities, so that the low-temperature air in the fifth mounting cavity can upwards enter the fourth mounting cavity through the air holes in the lowest partition plate and then enter the three mounting cavities, and the circulating flow of the low-temperature air in the pile body is achieved. Thereby realizing the cooling of the inner space of the pile body.

The charging gun is provided with two charging guns, two new energy vehicles can be charged simultaneously, the gun head and the charging cable of the charging gun have larger heat productivity in the charging process, if the charging temperature sensor monitors that the gun head of the charging gun reaches a set value (such as 50 ℃), the charging temperature sensor transmits a signal to the controller, the controller sends a signal for starting the oil pump, heat conduction oil circularly flows in the flow guide pipe inside the outer sheath of the charging cable, the heat conduction oil takes away heat in the annular cavity in the outer circle insulating sleeve of the gun head of the charging gun, and after heat dissipation of the coil pipe radiator, low-temperature heat conduction oil circularly enters the charging cable and the gun head of the charging gun, so that circulation is realized, the cooling of the gun head of the charging cable and the charging gun can be realized, and the safety of charging operation is ensured.

When charging in rainy day, in order to avoid the rainwater to flow to the mouth that charges along car body side, open the lid, take out the flexible rubber board in the recess of storage box top, flexible rubber board pulls out the waterproof cloth from the storage box simultaneously, expand flexible rubber board, the waterproof cloth is also expanded simultaneously, the car shell surface of mouthful top that charges is placed to two flexible rubber boards that will expand, a plurality of little magnet pieces that the flexible rubber board inside inlayed adsorb the car shell, just so shelter from the mouth that charges, simultaneously because flexible rubber board has certain pliability, car shell at different cambered surfaces, all can ensure between flexible rubber board and the car shell surface seamless, thereby both sides around can the item after the rainwater flows through flexible rubber board are passed. The rainwater flows into the storage box through the channel of the waterproof cloth and can be discharged through the drain holes at the lower side part of the storage box. When the end of charging withdraws the safe rain gear that charges, handheld handle takes off two flexible rubber boards from the car shell, and two flexible rubber boards are in the articulated fifty percent discount of hinge, and the also fifty percent discount of waterproof cloth simultaneously, then under the effect of torsional spring, on the waterproof cloth twined the roller, in the recess was placed to the flexible rubber board after will folding at last, the iron sheet in little magnet piece and the storage box adsorbs, then covers the lid. Because the size restriction of rifle charges, consequently keep off the rain and lay and twine on the roller after the fifty percent discount, adopt two flexible rubber boards to adopt hinge articulated mode simultaneously, expand when using, more the large tracts of land shelters from the mouth that charges, folds when receiving, reduces the volume, conveniently deposits.

According to the invention, a plurality of (eight) spring steel bars are uniformly arranged outside the central tube, the spring steel bars are in a vertical state in a natural state, and have stronger compressive strength after being bent into an arc shape according to the mechanical characteristics and the arrangement characteristics of the spring steel bars, the central tube can be well supported by the fixed connecting sleeve and the movable connecting sleeve, and when the central tube is subjected to impact force in the horizontal direction, the spring steel bars have good elasticity and good buffering effect, and can be quickly reset after the impact force is eliminated.

The upper end and the lower end of the spring steel bar are respectively in inserting and clamping fit with the movable connecting sleeve and the fixed connecting sleeve, the installation is convenient, and the purpose of positioning and connecting the spring steel bar can be achieved only by pushing the inserting barb at the end of the spring steel bar into the inserting annular channel and finally extending into the accommodating cavity to be in clamping fit with the limiting guide convex edge. Go up spacing arc arch and limit down the arch and prescribe a limit to spring billet upper end and lower extreme respectively in the position of circumferencial direction, effectively with spring billet rigidity, can prevent the radial expansion inefficacy that the spring billet position confusion caused.

When the charging pile is installed, a foundation pit is dug under the ground, a base and a vertical pipe are arranged in the foundation pit, and when the pile body of the charging pile is maintained or even replaced, the expansion type easily-installed elastic assembly can be taken out from the vertical pipe only by loosening a nut in threaded connection with the upper end of the central pipe and extending the spring steel bar, so that the operation is very convenient.

The invention adopts the vertical pipe and the channel inside the base to circulate the airflow, has novel structure, reduces the structure of arranging pipelines in the pile body, has stronger universality and improves the use efficiency of the space inside the pile body.

The air flow circulation in the invention adopts upper air inlet heating or refrigeration in the pile body, and adopts the semiconductor refrigeration piece to perform heating or refrigeration, and the semiconductor refrigeration piece is directly arranged on the side wall of the pile body, so the structure is compact, and the space is saved. The heated or refrigerated gas flows downwards in the pile body, the heated or refrigerated gas is pumped into the fifth mounting cavity at the lowest part by the exhaust fan, then the cold air or the hot air is further utilized by the air heat exchanger, and then the air flow moves upwards, so that the mixing of the upper air flow and the lower air flow is realized, and the working efficiency of the internal temperature of the ventilation regulation state is improved.

According to the invention, the charging cable and the gun head of the charging gun are cooled in a heat conduction oil circulation mode, and on the basis of safety and reliability, the charging reliability is improved, and the service life of the charging gun is prolonged.

Take out safe rain device that keeps off that charges and shelter from the mouth that charges rainy day, the modern design, the convenience is hidden, and easily operation has improved the security of charging.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a top view of the base of the present invention;

FIG. 3 is an enlarged view at A in FIG. 1;

FIG. 4 is a schematic view of the structure of the charging gun according to the present invention;

FIG. 5 is a schematic cross-sectional view of an internal draft tube of the charging cable;

FIG. 6 is a cross-sectional view of the spring steel strip and the center tube of FIG. 3;

fig. 7 is an enlarged view of the fixed connection sleeve of fig. 3;

FIG. 8 is a top view of FIG. 7;

FIG. 9 is an enlarged view of the movable connecting sleeve in FIG. 4;

FIG. 10 is a bottom view of FIG. 9;

fig. 11 is a right side view of two flexible rubber sheets of fig. 4.

Detailed Description

As shown in fig. 1-11, the dual-gun charging pile of the present invention includes a pile body 1 vertically disposed on the ground, the exterior of the pile body 1 is respectively connected with a charging gun 3 through two charging cables 2, a foundation pit is excavated under the ground, a pile foundation support pipe assembly 4 is disposed at the bottom of the pile body 1 in the foundation pit, an expansion type easily-installed elastic assembly 5 is disposed at the bottom of the pile body 1, the easily-installed elastic assembly 5 is fixedly disposed inside the pile foundation support pipe assembly 4, a supporting elastic sealing assembly 6 is disposed between the bottom of the pile body 1 and the top of the pile foundation support pipe assembly 4, the pile body 1 and the pile foundation support pipe assembly 4 are internally communicated and provided with a ventilation type temperature regulating system, a cooling and heat dissipating system for cooling the interior of the charging gun 3 and the charging cable 2 correspondingly connected is disposed in the pile body 1, and a safe charging rain shielding device which can be attached to the surface of the vehicle body for shielding the charging port is disposed in the head of the charging gun 3. The cooling heat dissipation system and the safe charging rain-shielding device are respectively provided with one set for each charging gun 3.

The pile foundation support pipe assembly 4 comprises a base 7, a plurality of vertical pipes 8 and a cover plate 9, wherein the base 7 and the cover plate 9 are square and are arranged horizontally, the base 7 is horizontally arranged at the bottom of a foundation pit, all the vertical pipes 8 are vertically arranged on the upper surface of the base 7, one vertical pipe 8 is vertically arranged at the center of the upper surface of the base 7, the rest vertical pipes 8 are arranged in a circumferential array along the central vertical pipe 8, a limiting structure 10 is arranged at the upper part of the inner circle of each vertical pipe 8, the inner circle of the limiting structure 10 is a conical arc surface with a thin upper part and a thick lower part, a lower positioning convex column 11 extending into the lower port of each vertical pipe 8 and used for positioning the position of the vertical pipe 8 is arranged on the upper surface of the base 7, the cover plate 9 is horizontally arranged on the upper end surfaces of all the vertical pipes 8, an upper positioning convex column 12 extending into the upper port of each vertical pipe 8 is arranged on the lower surface of the cover plate 9, a through hole is formed in the upper positioning convex column 12, a central air hole 13 with an opening at the top is arranged inside the lower positioning convex column 11 at the center in the base 7, an opening at the top is arranged inside the lower positioning convex column 11 at the edge of the base 7, and an opening 14 at the top is arranged in the edge along the radial direction and is arranged on the edge of the base 7 and used for connecting the air hole 14; concrete is poured in the foundation pit to connect all the vertical pipes 8 into a whole.

Each expansion type easy-to-install elastic component 5 is provided with one set in each vertical pipe 8, each expansion type easy-to-install elastic component 5 comprises a central pipe 16 which is coaxially arranged in each vertical pipe 8, the excircle of the lower end of the central pipe 16 is in threaded connection with a fixed connecting sleeve 17, the excircle of the upper end of the central pipe 16 is in sliding connection with a movable connecting sleeve and a pressing sleeve 19 which is positioned at the upper part of the movable connecting sleeve 18, the diameters of the fixed connecting sleeve 17 and the movable connecting sleeve 18 are smaller than the inner diameter of a through hole in the cover plate 9 and the inner diameter of the uppermost port of the limiting structure 10, a plurality of spring steel bars 20 pass through between the fixed connecting sleeve 17 and the movable connecting sleeve 18, and all the spring steel bars 20 are uniformly arranged along the circumferential direction of the central pipe 16; the upper end of the central tube 16 sequentially penetrates through the through hole in the cover plate 9 and the bottom plate of the pile body 1 upwards, and then is connected with a fastening nut 21 through threads, the fastening nut 21 is screwed, the central tube 16 moves upwards, the lower end of the fastening nut 21 is in press connection with the upper surface of the bottom plate 22 of the pile body 1, the lower surface of the bottom plate 22 of the pile body 1 is in press connection with a pressing sleeve 19, the lower end of the pressing sleeve 19 is in press connection with the upper end of a movable connecting sleeve 18, the distance between the movable connecting sleeve 18 and a fixed connecting sleeve 17 gradually decreases, all spring steel bars 20 simultaneously expand outwards along the radial direction of the central tube 16 to form an ellipsoid shape until all the spring steel bars 20 are in press connection with the inner wall of the stand tube 8, and meanwhile, the conical cambered surface of the upper limiting structure 10 of the inner wall of the stand tube 8 is in press connection with the outer side of the upper part of the spring steel bars 20.

A lower circular groove 23 with an open top is formed in the fixed connecting sleeve 17, lower elastic positioning blocks 24 with the number equal to that of the spring steel bars 20 are fixedly arranged on the fixed connecting sleeve 17 on the outer side wall of an upper end opening of the lower circular groove 23, the lower elastic positioning blocks 24 are uniformly arranged along the circumferential direction of the lower circular groove 23, the cross section of each lower elastic positioning block 24 is L-shaped, the outer end of a horizontal section of each lower elastic positioning block 24 is fixedly connected with the outer side wall of the upper end opening of the lower circular groove 23, a vertical section of each lower elastic positioning block 24 extends downwards into the corresponding lower circular groove 23, a lower accommodating cavity 25 is formed between the lower end of each lower elastic positioning block 24 and the bottom of the corresponding lower circular groove 23, a lower inserting annular channel 26 is formed by the vertical section of each lower elastic positioning block 24 and the inner side wall of the corresponding lower circular channel 26, a lower limiting guiding protruding ridge 27 protruding downwards is formed at the lower end of each lower elastic positioning block 24, and the distance between the lower guiding ridge 27 and the inner side wall of the corresponding lower circular groove 23 is gradually reduced from top to bottom; the inner side wall of the lower circular groove 23 is provided with lower limiting arc-shaped bulges 28 which are contacted with two sides of the lower elastic positioning block 24 at two sides of the lower inserting annular channel 26;

an upper annular groove 29 with an open bottom is formed in the movable connecting sleeve 18, an upper elastic positioning block 30 which is vertically and one-to-one corresponding to the lower elastic positioning block 24 is fixedly arranged on the outer side wall of the lower port of the upper annular groove 29 on the movable connecting sleeve 18, the cross section of the upper elastic positioning block 30 is L-shaped, the outer end of the horizontal section of the upper elastic positioning block 30 is fixedly connected with the outer side wall of the lower port of the upper annular groove 29, the vertical section of the upper elastic positioning block 30 upwards extends into the upper annular groove 29, an upper accommodating cavity 31 is formed between the upper end of the upper elastic positioning block 30 and the bottom of the upper annular groove 29, an upper inserting annular channel 32 is formed by the upper elastic positioning block 30 and the inner side wall of the upper annular groove 29, an upper limiting guide rib 33 which protrudes upwards into the inserting annular channel 32 is arranged at the upper end of the upper elastic positioning block 30, and the distance between the upper limiting guide rib 33 and the inner side wall of the upper annular groove 29 is gradually increased from top to bottom; the inner side wall of the upper circular groove 29 is provided with upper limiting arc-shaped protrusions 34 which are contacted with two sides of the upper elastic positioning block 30 at two sides of the upper inserting annular channel 32.

The lower end of the spring steel bar 20 is provided with a lower insertion barb 35, and the lower insertion barb 35 extends into the lower accommodating cavity 25 along the lower insertion annular channel 26 to be in clamping fit with the lower limiting guide rib 27; the upper end of the spring steel bar 20 is provided with an upper insertion barb 36, and the upper insertion barb 36 extends into the upper accommodating cavity 31 along the upper insertion annular channel 32 to be in clamping fit with the upper limiting guide protruding rib 33.

The supporting elastic sealing assembly 6 comprises a first compression spring 37, a second compression spring 38, a sealing cushion plate 39 and a rubber sealing plate 40, wherein the first compression spring 37 and the sealing cushion plate 39 are sleeved on the vertical pipe 8, the sealing cushion plate 39 plugs a through hole on the cover plate 9, the upper end and the lower end of the first compression spring 37 are respectively in press fit with the bottom plate 22 and the sealing cushion plate 39 of the pile body 1, the upper end of the second compression spring 38 is fixedly arranged on the lower surface of the bottom plate 22 of the pile body 1, and the lower end of the second compression spring 38 is in press fit with the upper surface of the cover plate 9; the rubber seal plate 40 is equipped with four, and four rubber seal plates 40 set up respectively in 1 side lower part of pile body, and rubber seal plate 40 medial surface bonds and passes through the screw fastening as an organic whole with 1 side of pile body, and rubber seal plate 40 lower side forms tang seal structure with apron 9 side.

The vertical pipe 8 is provided with five vertical pipes, wherein one vertical pipe 8 is positioned at the center of the base 7 and the cover plate 9, the other four vertical pipes 8 are arranged at the four corners of the base 7 and the cover plate 9, four layers of clapboards 41 are arranged in the pile body 1 from top to bottom, each layer of clapboard 41 is provided with a plurality of air holes, and the four layers of clapboards 41 divide the inner cavity of the pile body 1 into a first installation cavity 42, a second installation cavity 43, a third installation cavity 44, a fourth installation cavity 45 and a fifth installation cavity 46 from top to bottom in sequence;

the ventilation type temperature regulating system comprises a ventilation temperature sensor 47, an exhaust fan 48, a first exhaust pipe 49, a second exhaust pipe 50, a third exhaust pipe 51, a fourth exhaust pipe (not shown), a first semiconductor refrigeration sheet 52, a second semiconductor refrigeration sheet 53 and an air filter element 54; a ventilation temperature sensor 47 is arranged in the third mounting cavity 44;

the exhaust fan 48 is arranged in the fifth installation cavity 46, an exhaust opening of the exhaust fan 48 is connected with the upper port of the central pipe 16 in the central vertical pipe 8 through a connecting hose, an air outlet 56 is formed in the side part of the fifth installation cavity 46 on the pile body 1, the inner wall of the air outlet 56 is provided with a dust screen, an air outlet of the exhaust fan 48 is connected with two air heat exchangers 58 through a three-way pipeline 57, and outlets of the two air heat exchangers 58 are both connected with the air outlet 56 through an air outlet pipe 59; the first exhaust pipe 49, the second exhaust pipe 50, the third exhaust pipe 51 and the fourth exhaust pipe are vertically arranged at the edges in the pile body 1 respectively, the lower ends of the first exhaust pipe 49, the second exhaust pipe 50, the third exhaust pipe 51 and the fourth exhaust pipe are correspondingly connected with the upper ports of the other four central pipes 16 through hose elbows 60 respectively, the upper port of the first exhaust pipe 49 is positioned in the first installation cavity 42, the upper port of the second exhaust pipe 50 is positioned in the second installation cavity 43, the upper port of the third exhaust pipe 51 is positioned in the third installation cavity 44, and the upper port of the fourth exhaust pipe is positioned in the fourth installation cavity 44; the top of the pile body 1 is provided with a sunshade rain-proof shed 61, the air filter element 54 is arranged at the center of the top surface of the pile body 1 below the sunshade rain-proof shed 61, and the top of the pile body 1 is provided with a plurality of air holes below the air filter element 54.

The top and the peripheral side walls of the pile body 1 are of a three-layer structure, the middle layer is a heat insulation layer, the outer layer is made of aluminum alloy, and the inner layer is made of PPS plastic; the inner layer and the middle layer of the left side wall of the first mounting cavity 42 are provided with left mounting grooves, the first semiconductor refrigeration sheet 52 is arranged in the left mounting grooves, and the refrigeration surface of the first semiconductor refrigeration sheet 52 is in contact with the inner surface of the outer layer; the inner layer and the middle layer of the right side wall of the first mounting cavity 42 are provided with right mounting grooves, the second semiconductor refrigerating sheet 53 is arranged in the right mounting groove, and the heating surface of the second semiconductor refrigerating sheet 53 is in contact with the inner surface of the outer layer;

a left air deflector 62 with a lower left side and a higher right side and a right air deflector 63 with a higher left side and a lower right side are arranged in the first mounting cavity 42, the right side edge of the left air deflector 62 and the left side edge of the right air deflector 63 are butted and simultaneously connected to the top of the pile body 1, half of the air holes are positioned above the left air deflector 62, the other half of the air holes are positioned above the right air deflector 63, a hot air flow gap 64 is formed between the left side edge of the left air deflector 62 and the upper part of the heating surface on the right side of the first semiconductor refrigerating sheet 52, and a cold air flow gap 65 is formed between the right side edge of the right air deflector 63 and the upper part of the refrigerating surface on the left side of the second semiconductor refrigerating sheet 53;

a left electric push rod 66 is arranged on the upper part of the left air deflector 62 on the inner wall of the top of the pile body 1, and the left electric push rod 66 is connected with a left valve plate 67 for opening and closing a left air vent; the inner wall of the top of the pile body 1 is provided with a right electric push rod 68 above the right air deflector 63, and the right electric push rod 68 is connected with a right valve plate 69 for opening and closing the right air vent.

The cooling and heat dissipation system comprises an oil pump 70, a coil radiator 71 and a charging temperature sensor (not shown), the charging temperature sensor is arranged in a gun head of the charging gun 3, a plurality of groups of guide pipes are arranged inside an outer sheath of the charging cable 2 along the circumferential direction, each group of guide pipes comprises a liquid inlet pipe 73 and a liquid return pipe 74, an annular cavity 75 is arranged in an insulating sleeve of the excircle of the gun head of the charging gun 3, one end of each group of guide pipes is communicated with the annular cavity 75, the inlet end of the liquid inlet pipe 73 of each group of guide pipes is connected with an outlet of the coil radiator 71 through a first confluence pipe, the outlet end of the liquid return pipe 74 of each group of guide pipes is connected with an inlet of the oil pump 70 through a second confluence pipe, an inlet of the oil pump 70 is connected with an inlet of the coil radiator 71 through a high-pressure hose, the oil pump 70 and the coil radiator 71 are arranged in the pile body 1, and the coil radiator 71 is tightly attached to the side wall of the pile body 1 to dissipate heat outwards.

The safe charging rain shielding device comprises a storage box 76 arranged at the top of a gun head of a charging gun 3, a roller 77 is rotationally arranged in the storage box 76, a torsion spring is arranged between a central shaft of the roller 77 and the storage box 76, a folded waterproof cloth 78 is wound on the outer circle of the roller 77, the movable end of the outer side of the waterproof cloth 78 is connected with two flexible rubber plates 79, the waterproof cloth 78 is connected with one side of each flexible rubber plate 79, a handle 82 is arranged on the upper side of each flexible rubber plate 79, the other side of each flexible rubber plate 79 is of a plane structure used for adsorbing a shell above a charging port of an automobile, the two flexible rubber plates 79 are connected through hinges, a plurality of small magnet pieces are uniformly embedded in the flexible rubber plates 79, when the two flexible rubber plates 79 are unfolded through hinges 81, the waterproof cloth 78 connected with the flexible rubber plates 79 is unfolded to form an arc cover shape with high middle and low two sides, a groove 72 used for placing the folded flexible rubber plates 79 is arranged at the top of the storage box 76, a channel used for penetrating through the waterproof cloth 78 is arranged at the bottom of the storage box 76, when the flexible rubber plates 79 are placed in the groove 72, an iron piece used for adsorbing the small magnet pieces is arranged in the storage box 76, a drain hole 80 arranged at the top of the storage box 76, and a drain hole 80 used for draining hole 80 arranged at the bottom of the storage box cover 76 used for draining the storage box cover 76 and used for draining the storage box cover 76.

When the installation fills electric pile, dig the foundation ditch of certain degree of depth on the subaerial of present assigned position, pour one deck mortar in the foundation ditch bottom and make the foundation ditch bottom keep the level, then place base 7 (prefabricated reinforced concrete structure) on the mortar layer of foundation ditch bottom, place riser 8 on base 7 perpendicularly, lower location projection 11 stretches into riser 8 lower port, riser 8 keeps the vertical condition, then use the baffle to shelter from every riser 8 upper port, avoid falling into debris in the riser 8, then pour concrete in the foundation ditch, it flushes to the concrete of pouring with riser 8 upper end, guarantee the straightness that hangs down of every riser 8 when the compaction concrete, make all risers 8 solidify with the foundation ditch and be connected as an organic whole, take off the baffle after that, place apron 9 on all risers 8, the last location projection 12 of apron 9 lower surface stretches into in riser 8 upper port, can inject apron 9 stability in the horizontal direction like this. Then, the upper end of the assembled expansion type easily-installed elastic component 5 is firstly connected with a bottom plate 22 of the pile body 1, one or more door bodies for opening and closing five installation cavities are arranged on the side portion of the pile body 1, the door bodies are opened, a sealing cushion plate 39 and a first compression spring 37 are sleeved outside a pressing sleeve 19 on the excircle of the vertical pipe 8, the upper end of a central pipe 16 penetrates through an installation hole reserved on the bottom plate 22 and extends into a fifth installation cavity 46, a fixing nut 21 is screwed on the upper end portion of the central pipe 16 to prevent the whole expansion type easily-installed elastic component 5 from sliding downwards, then the lower ends of the central pipes 16 of all expansion type easily-installed elastic components 5 penetrate through a through hole on a cover plate 9 and extend into the vertical pipe 8, a fixing connection sleeve 17 and a spring steel bar 20 enter into the vertical pipe 8 until the lower surface of the bottom plate 22 is pressed on the first compression spring 37, the lower end of the first spring is pressed and connected with the sealing cushion plate 39 on the upper surface of the cover plate 9, the sealing cushion plate 39 plugs the through hole on the cover plate 9, the lower end of the second compression spring 38 fixedly connected with the lower surface of the bottom plate 22 is in pressure connection with the upper surface of the cover plate 9, then all the fastening nuts 21 are sequentially screwed, the central tube 16 in threaded connection with the fastening nuts 21 moves upwards, the central tube 16 drives the fixed connecting sleeve 17 at the lower end to move upwards, the lower end of the pressing sleeve 19 presses the movable connecting sleeve 18 to limit the movable connecting sleeve 18 not to move upwards, the distance between the fixed connecting sleeve 17 and the movable connecting sleeve 18 gradually decreases, the spring steel bar 20 is compressed to expand along the radial direction until the spring steel bar 20 expands to be pressed against the inner wall of the vertical tube 8, meanwhile, the outer side of the upper part of the spring steel bar 20 is blocked by the limiting structure 10 at the upper part of the inner circle of the vertical tube 8, the fastening nuts 21 are not screwed, the rest of the fastening nuts 21 are screwed according to ensure that the height of the threaded connection position of the fastening nuts 21 and the vertical tube 8 is consistent, at this time, the first compression spring 37 and the second compression spring 38 are compressed to a certain degree, the lower sides of the four rubber sealing plates 40 are also in pressure connection with the cover plate 9, and a spigot sealing structure is formed between the lower sides of the four rubber sealing plates and the upper side of the cover plate 9, so that rainwater is prevented from entering between the cover plate 9 and the bottom plate 22. Then, an air suction opening of the air suction fan 48 is connected with the upper ports of the central tubes 16 in the central vertical tube 8 through a connecting hose 55, and the lower ends of the first air suction tube 49, the second air suction tube 50, the third air suction tube 51 and the fourth air suction tube are respectively connected with the upper ports of the other four central tubes 16 through hose elbows 60 in a one-to-one correspondence manner.

When a novice driver drives a car and scratches or slightly impacts the pile body 1, due to the arrangement of the spring steel bar 20, the first compression spring 37 and the second compression spring 38, a certain buffering effect is achieved on the impact on the pile body 1, the pile body 1 can be tilted at a certain angle, and the safety and reliability of the pile body 1 and internal electrical elements are effectively protected. The rubber sealing plate 40 is replaceable after being damaged by impact force.

Second installation cavity 43, third installation cavity 44 and fourth installation cavity 45 in pile body 1 are used for installing electrical components such as inlet wire circuit breaker, surge protector, the module of charging, radiator fan, controller, vacuum contactor, relay and fuse, set up in the installation cavity of difference according to the mounted position.

In cold winter, especially in northern areas of China, for example, when the set ventilation temperature sensor 47 detects that the temperature in the pile body 1 is lower than-10 ℃, the controller sends a signal to instruct the right electric push rod 68 to extend to drive the right valve plate 69 to close the right air vent, the left electric push rod 66 to contract to drive the left valve plate 67 to close the left air vent, meanwhile, the first semiconductor refrigeration sheet 52 and the exhaust fan 48 are powered on, cold air is filtered by the air filter element 54 and then enters the first mounting cavity 42 through the air vents, airflow blows the heating surface of the first semiconductor refrigeration sheet 52 under the conduction of the left air deflector 62, the air is heated and then enters the mounting cavities through the air holes in the four layers of partition plates 41, hot air in the mounting cavities then enters the central pipe 16 through the exhaust pipes, then enters the edge air holes 14 and the radial air holes 15 in the base 7 and finally converges to the central air hole 13, then enters the exhaust fan 48 through the central pipe 16 in the central vertical pipe 8 and then enters the two air heat exchangers 58 through the exhaust fan 48, and the air absorbs heat and then exhausts the cold air through the heat exchangers 58. The heat emitted by the air heat exchanger 58 is inside the fifth installation cavity 46, and because the air inlets of the exhaust pipes are arranged in the upper four installation cavities, the hot air inside the fifth installation cavity 46 can upwards enter the fourth installation cavity 45 through the air holes in the lowest partition plate 41 and then enter the upper three installation cavities, so that the hot air circularly flows in the pile body 1. Thereby realizing the heating of the interior of the pile body 1.

In hot summer, for example, when the temperature in the pile body 1 monitored by the set ventilation temperature sensor 47 is higher than 45 ℃, the controller sends a signal to instruct the left electric push rod 66 to extend to drive the left valve plate 67 to close the air vents on the left side, the right electric push rod 68 to contract to drive the right valve plate 69 to open the air vents on the right side, meanwhile, the second semiconductor refrigeration sheets 53 and the exhaust fan 48 are electrified and started, external air is filtered by the air filter element 54 and then enters the first installation cavity 42 through the air vents, air flow blows to the surface of the second semiconductor refrigeration sheets 53 under the guide of the right air guide plate 63, after being cooled, the air enters the installation cavities through the air holes in the four layers of partition plates 41 downwards, the air in the installation cavities then enters the central tube 16 downwards through the exhaust pipes, then enters the edge air holes 14 and the radial air holes 15 in the base 7, finally is collected to the central air hole 13, then enters the exhaust fan 48 upwards through the central tube 16 in the central stand pipe 8, and then is sent into the two air exchangers 58, and the air heat exchanger 58 exchanges heat with the hot air in the fifth installation cavity 46 with low-temperature air in the interior, and then discharges the air through the exhaust port. The low-temperature air after the heat exchange of the air heat exchanger 58 is in the fifth installation cavity 46, and because the air inlets of the exhaust pipes are arranged in the four installation cavities, the low-temperature air in the fifth installation cavity 46 can upwards enter the fourth installation cavity 45 through the air holes in the lowest partition plate 41 and then enter the three installation cavities, and the circulating flow of the low-temperature air in the pile body 1 is achieved. Thereby realizing the cooling of the inner space of the pile body 1.

The charging gun is provided with two charging guns 3, two new energy vehicles can be charged simultaneously, the gun heads of the charging guns 3 and the charging cable 2 have larger heat productivity in the charging process, if the charging temperature sensor monitors that the gun heads of the charging guns 3 reach a set value (such as 50 ℃), the charging temperature sensor transmits a signal to the controller, the controller sends a signal for starting the oil pump 70, heat conduction oil circularly flows in the flow guide pipes in the outer sheaths of the charging cable 2, the heat conduction oil takes away heat in the annular cavities 75 in the outer circle insulating sleeves of the gun heads of the charging guns 3, and after heat dissipation through the coil pipe radiator 71, low-temperature heat conduction oil circularly enters the gun heads of the charging cable 2 and the charging gun 3, so that how to circulate the heat conduction oil can cool the gun heads of the charging cable 2 and the charging gun 3, and the safety of charging operation is ensured.

When charging in rainy days, in order to avoid rainwater flowing into the charging port along the side surface of the vehicle body, the box cover 80 is opened, the flexible rubber plate 79 in the groove 72 at the top of the storage box 76 is taken out, meanwhile, the rainproof cloth 78 is pulled out of the storage box 76 by the flexible rubber plate 79, the flexible rubber plate 79 is unfolded, meanwhile, the rainproof cloth 78 is also unfolded, the two unfolded flexible rubber plates 79 are placed on the surface of the vehicle shell above the charging port, a plurality of small magnet pieces embedded in the flexible rubber plate 79 adsorb the vehicle shell, so that the charging port is shielded, meanwhile, as the flexible rubber plate 79 has certain flexibility, no gap can be ensured between the flexible rubber plate 79 and the surface of the vehicle shell at different cambered surfaces, and therefore, the front side and the rear side of the rainwater can bypass after flowing through the flexible rubber plate 79. The rainwater flows into the storage box 76 through the passage of the waterproof cloth 78 and is discharged through the drain holes at the lower side of the storage box 76. When the safe charging rain shield device is retracted after charging, the two flexible rubber plates 79 are taken down from the car shell by the handheld handle 82, the two flexible rubber plates 79 are folded at the hinged position of the hinge 81, meanwhile, the waterproof cloth 78 is also folded, then under the action of the torsion spring, the waterproof cloth 78 is wound on the roller 77, finally, the folded flexible rubber plates 79 are placed in the groove 72, the small magnet pieces are adsorbed with the iron pieces in the storage box 76, and then the box cover 80 is covered. Because the size restriction of rifle 3 charges, consequently keep off the waterproof cloth 78 design and twine on roller 77 for the fifty percent discount back, adopt two flexible rubber boards 79 to adopt hinge 81 articulated modes simultaneously, expand when using, more large tracts of land shelters from the mouth that charges, folds when receiving, reduces the volume, conveniently deposits.

According to the invention, a plurality of (eight) spring steel bars 20 are uniformly arranged outside the central tube 16, the spring steel bars 20 are in a vertical state in a natural state, and have stronger compressive strength after being bent into an arc shape according to the mechanical characteristics and the arrangement characteristics of the spring steel bars 20, the central tube 16 can be well supported by the fixed connecting sleeve 17 and the movable connecting sleeve 18, and when the central tube 16 is impacted in the horizontal direction, the spring steel bars 20 have good elasticity and good buffering effect, and can be quickly reset after the impact force is eliminated.

The upper end and the lower end of the spring steel bar 20 are respectively inserted into the movable connecting sleeve 18 and the fixed connecting sleeve 17 to be clamped and matched, so that the installation is convenient, and the purpose of positioning and connecting the spring steel bar 20 can be achieved only by pushing the inserting barb at the end of the spring steel bar 20 into the inserting annular channel and finally extending into the accommodating cavity to be clamped and matched with the limiting guide convex edge. Go up spacing arc-shaped protrusion 34 and limit the position of spring billet 20 upper end and lower extreme in the circumferencial direction respectively with lower limit arch, effectively with spring billet 20 rigidity, can prevent the radial expansion inefficacy that the confusion of spring billet 20 position caused.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a stake of charging is filled to double gun, includes the perpendicular pile body that sets up subaerial, and the pile body is outside to be connected with a rifle that charges, its characterized in that respectively through two charging cables: a foundation pit is excavated underground, a pile body bottom is provided with a pile foundation support pipe assembly, an expansion type easily-installed elastic assembly is arranged at the bottom of the pile body and fixedly arranged inside the pile foundation support pipe assembly, a supporting elastic sealing assembly is arranged between the bottom of the pile body and the top of the pile foundation support pipe assembly, the pile body and the pile foundation support pipe assembly are communicated internally and are provided with a ventilation type temperature adjusting system, a cooling and heat dissipating system used for cooling the charging gun and the charging cable correspondingly connected is arranged in the pile body, and a safe charging rain shielding device which can be adsorbed on the surface of a vehicle body and used for shielding a charging port is arranged in a gun head of the charging gun;

the pile foundation support pipe assembly comprises a base, a plurality of vertical pipes and a cover plate, wherein the base and the cover plate are square and are uniformly arranged horizontally, the base is horizontally arranged at the bottom of a foundation pit, all the vertical pipes are vertically arranged on the upper surface of the base, one vertical pipe is vertically arranged at the center of the upper surface of the base, the rest vertical pipes are arranged along the circumference of the central vertical pipe in an array manner, the upper part of the inner circle of each vertical pipe is provided with a limiting structure, the inner circle of the limiting structure is a conical arc surface which is thin at the top and thick at the bottom, the upper surface of the base is provided with a lower positioning convex column which extends into a lower port of the vertical pipe and is used for positioning the vertical pipe, the cover plate is horizontally arranged on the upper end surface of all the vertical pipes, the lower surface of the cover plate is provided with an upper positioning convex column which extends into the upper positioning convex column, the upper positioning convex column of the cover plate is provided with a through hole which is through from top to bottom, a central air hole which is opened at the top is arranged inside the lower positioning convex column at the center of the base, the lower positioning convex column at the edge of the base is provided with an edge air hole at the top, and the base is provided with a radial air hole which is opened at the top inside, and the base is arranged in the base along the radial direction; pouring concrete in the foundation pit to connect all the vertical pipes into a whole;

each expansion type easily-installed elastic component is provided with a set of expansion type easily-installed elastic component in each vertical pipe, each expansion type easily-installed elastic component comprises a central pipe which is coaxially arranged in each vertical pipe in the same direction, the excircle of the lower end of each central pipe is in threaded connection with a fixed connecting sleeve, the excircle of the upper end of each central pipe is in sliding connection with a movable connecting sleeve and a pressing sleeve which is positioned on the upper portion of each movable connecting sleeve, the diameters of the fixed connecting sleeve and the movable connecting sleeve are smaller than the inner diameter of a through hole in a cover plate and the inner diameter of the uppermost port of a limiting structure, a plurality of spring steel bars are arranged between the fixed connecting sleeve and the movable connecting sleeve, and all the spring steel bars are uniformly arranged in the circumferential direction of the central pipes; the upper end of the central tube sequentially penetrates through a through hole in the cover plate and a bottom plate of the pile body upwards and then is connected with a fastening nut in a threaded mode, the fastening nut is screwed, the central tube moves upwards, the lower end of the fastening nut is in compression joint with the upper surface of the bottom plate of the pile body, the lower surface of the bottom plate of the pile body is in compression joint with a pressing sleeve, the lower end of the pressing sleeve is in compression joint with the upper end of a movable connecting sleeve, the distance between the movable connecting sleeve and a fixed connecting sleeve is gradually reduced, all spring steel bars expand outwards along the radial direction of the central tube simultaneously to form an ellipsoidal shape until all the spring steel bars are in compression joint with the inner wall of the vertical tube, and meanwhile, a conical cambered surface of an upper limiting structure of the inner wall of the vertical tube is in compression joint with the outer side of the upper part of each spring steel bar;

a lower annular groove with an open top is formed in the fixed connecting sleeve, lower elastic positioning blocks equal to the spring steel bars are fixedly arranged on the fixed connecting sleeve on the outer side wall of an upper port of the lower annular groove, the lower elastic positioning blocks are uniformly arranged along the circumferential direction of the lower annular groove, the cross section of each lower elastic positioning block is L-shaped, the outer end of a horizontal section of each lower elastic positioning block is fixedly connected with the outer side wall of an upper port of the lower annular groove, a vertical section of each lower elastic positioning block extends downwards into the lower annular groove, a lower accommodating cavity is formed between the lower end of each lower elastic positioning block and the bottom of the lower annular groove, a lower inserting annular channel is formed by the vertical section of each lower elastic positioning block and the inner side wall of the lower annular groove, a lower limiting guide rib protruding downwards in the lower inserting annular channel is arranged at the lower end of each lower elastic positioning block, and the distance between the lower limiting guide rib and the inner side wall of the lower annular groove is gradually reduced from top to bottom; lower limiting arc-shaped bulges which are contacted with two sides of the lower elastic positioning block are arranged on the inner side wall of the lower circular groove on two sides of the lower inserting annular channel;

an upper annular groove with an opening at the bottom is formed in the movable connecting sleeve, an upper elastic positioning block which is vertically in one-to-one correspondence with the lower elastic positioning block is fixedly arranged on the outer side wall of the lower port of the upper annular groove on the movable connecting sleeve, the cross section of the upper elastic positioning block is L-shaped, the outer end of the horizontal section of the upper elastic positioning block is fixedly connected with the outer side wall of the lower port of the upper annular groove, the vertical section of the upper elastic positioning block upwards extends into the upper annular groove, an upper accommodating cavity is formed between the upper end of the upper elastic positioning block and the bottom of the upper annular groove, an upper inserting annular channel is formed by the upper elastic positioning block and the inner side wall of the upper annular groove, an upper limiting guide convex edge protruding into the upper inserting annular channel is arranged at the upper end of the upper elastic positioning block, and the distance between the upper limiting guide convex edge and the inner side wall of the upper annular groove is gradually increased from top to bottom; the inner side wall of the upper circular groove is provided with upper limiting arc bulges which are contacted with two sides of the upper elastic positioning block on two sides of the upper inserting annular channel.

2. The dual-gun charging pile according to claim 1, characterized in that: the lower end of the spring steel bar is provided with a lower inserting barb, and the lower inserting barb extends into the lower accommodating cavity along the lower inserting annular channel to be clamped and matched with the lower limiting guide convex edge; the upper end of the spring steel bar is provided with an upper inserting barb which extends into the upper accommodating cavity along the upper inserting annular channel to be matched with the upper limiting guide convex edge in a clamping manner.

3. The dual-gun charging pile according to claim 1, characterized in that: the supporting elastic sealing assembly comprises a first compression spring, a second compression spring, a sealing base plate and a rubber sealing plate, wherein the first compression spring and the sealing base plate are sleeved on the vertical pipe, the sealing base plate plugs the through hole in the cover plate, the upper end and the lower end of the first compression spring are respectively in compression joint with the bottom plate of the pile body and the sealing base plate, the upper end of the second compression spring is fixedly arranged on the lower surface of the bottom plate of the pile body, and the lower end of the second compression spring is in compression joint with the upper surface of the cover plate; the rubber seal plate is equipped with four, and four rubber seal plates set up respectively in pile body side lower part, and rubber seal plate medial surface bonds and fixes as an organic whole through the screw with the pile body side, and the side forms tang seal structure with the apron side under the rubber seal plate.

4. The dual-gun charging pile according to claim 1, characterized in that: the pile body is internally provided with four layers of clapboards from top to bottom, each layer of clapboard is provided with a plurality of air holes, and the inner cavity of the pile body is sequentially divided into a first mounting cavity, a second mounting cavity, a third mounting cavity, a fourth mounting cavity and a fifth mounting cavity from top to bottom by the four layers of clapboards;

the ventilation type temperature adjusting system comprises a ventilation temperature sensor, an exhaust fan, a first exhaust pipe, a second exhaust pipe, a third exhaust pipe, a fourth exhaust pipe, a first semiconductor refrigeration piece, a second semiconductor refrigeration piece and an air filter element; the ventilation temperature sensor is arranged in the third mounting cavity;

the exhaust fan is arranged in the fifth installation cavity, an exhaust opening of the exhaust fan is connected with an upper end opening of a central pipe in the central vertical pipe through a connecting hose, an air outlet is formed in the side part of the fifth installation cavity on the pile body, a dust screen is arranged on the inner wall of the air outlet, the air outlet of the exhaust fan is connected with two air heat exchangers through a three-way pipeline, and outlets of the two air heat exchangers are connected with the air outlet through exhaust pipes; the first exhaust pipe, the second exhaust pipe, the third exhaust pipe and the fourth exhaust pipe are vertically arranged at the edges and corners in the pile body respectively, the lower ends of the first exhaust pipe, the second exhaust pipe, the third exhaust pipe and the fourth exhaust pipe are connected with the upper ports of other four central pipes in a one-to-one correspondence mode through hose elbows respectively, the upper port of the first exhaust pipe is located in the first installation cavity, the upper port of the second exhaust pipe is located in the second installation cavity, the upper port of the third exhaust pipe is located in the third installation cavity, and the upper port of the fourth exhaust pipe is located in the fourth installation cavity; the top of the pile body is provided with a sunshade rain shed, the air filter element is arranged at the center of the top surface of the pile body below the sunshade rain shed, and the top of the pile body is provided with a plurality of air holes below the air filter element.

5. The dual-gun charging pile according to claim 4, characterized in that: the top and the peripheral side walls of the pile body are of three-layer structures, the middle layer is a heat insulation layer, the outer layer is made of aluminum alloy, and the inner layer is made of PPS plastic; the inner layer and the middle layer of the left side wall of the first mounting cavity are provided with left mounting grooves, the first semiconductor refrigeration piece is arranged in the left mounting groove, and the refrigeration surface of the first semiconductor refrigeration piece is in contact with the inner surface of the outer layer; the inner layer and the middle layer of the right side wall of the first mounting cavity are provided with right mounting grooves, the second semiconductor refrigerating sheet is arranged in the right mounting groove, and the heating surface of the second semiconductor refrigerating sheet is in contact with the inner surface of the outer layer;

a left air deflector with a lower left side and a higher right side and a right air deflector with a higher left side and a lower right side are arranged in the first mounting cavity, the right side edge of the left air deflector and the left side edge of the right air deflector are butted and are simultaneously connected to the top of the pile body, one half of the air holes are positioned above the left air deflector, the other half of the air holes are positioned above the right air deflector, a hot air flow gap is formed between the left side edge of the left air deflector and the upper part of the heating surface on the right side of the first semiconductor refrigerating piece, and a cold air flow gap is formed between the right side edge of the right air deflector and the upper part of the refrigerating surface on the left side of the second semiconductor refrigerating piece;

a left electric push rod is arranged on the inner wall of the top of the pile body above the left air deflector and connected with a left valve plate for opening and closing the left air vent; the inner wall of the top of the pile body is provided with a right electric push rod above the right air deflector, and the right electric push rod is connected with a right valve plate for opening and closing the right air hole.

6. The dual-gun charging pile according to claim 1, characterized in that: the cooling and heat dissipation system comprises an oil pump, a coil radiator and a charging temperature sensor, the charging temperature sensor is arranged in a gun head of a charging gun, a plurality of groups of guide pipes are arranged inside an outer sheath of a charging cable along the circumferential direction, each group of guide pipes comprises a liquid inlet pipe and a liquid return pipe, an annular cavity is arranged in an insulating sleeve of an excircle of the gun head of the charging gun, one end of each group of guide pipes is communicated with the annular cavity, the inlet end of the liquid inlet pipe of each group of guide pipes is connected with an outlet of the coil radiator through a first collecting pipe, the outlet end of the liquid return pipe of each group of guide pipes is connected with an inlet of the oil pump through a second collecting pipe, the inlet of the oil pump is connected with the inlet of the coil radiator through a high-pressure hose, the oil pump and the coil radiator are arranged in a pile body, and the coil radiator tightly clings to the side wall of the pile body to radiate heat outwards.

7. The dual-gun charging pile according to claim 1, characterized in that: the safe charging rain shielding device comprises a storage box arranged at the top of a gun head of a charging gun, a roller is arranged in the storage box in a rotating mode, a torsion spring is arranged between a roller center shaft and the storage box, rain-proof cloth folded in half is wound on the outer circle of the roller, two flexible rubber plates are connected to the movable end outside the rain-proof cloth, the rain-proof cloth is connected with one side face of each flexible rubber plate, a handle is arranged on the upper side edge of each flexible rubber plate, the other side face of each flexible rubber plate is of a plane structure used for adsorbing a shell above a charging opening of an automobile, the two flexible rubber plates are connected through hinges, a plurality of small magnet pieces are uniformly embedded in the flexible rubber plates, when the two flexible rubber plates are unfolded through hinges, the rain-proof cloth connected with the flexible rubber plates also forms an arc cover shape with the middle height and the two sides being low along with the unfolding, a groove used for placing the folded flexible rubber plates is formed in the top of the storage box, a channel used for passing through the rain-proof cloth is arranged at the bottom of the groove, an iron piece used for adsorbing the small magnet piece is arranged in the storage box when the flexible rubber plates are placed in the groove, a box cover used for covering the groove, and a drain hole used for draining the lower side of the storage box is arranged in the storage box.