Sunken new energy vehicle charging pile

Abstract

The application discloses a sunken new energy automobile charging pile and belongs to the technical field of charging piles. The application has the advantages that the charging pile body and the charging gun are both installed in the foundation pit, the space above the ground is not occupied, the intensive use of land resources is facilitated, and the damage of equipment caused by accidental collision of vehicles is effectively prevented; and in the non-use state, the charging pile is isolated from the outside world through the cover plate, the sealing ring and other structures, long-term wind blowing, rain and sunshine are avoided, the aging of the shell and internal components is significantly slowed down, the maintenance frequency is reduced, and the service life is prolonged.

Description

Technical Field

[0001] This invention relates to the field of vehicle charging pile technology, and in particular to a sunken new energy vehicle charging pile. Background Technology

[0002] New energy vehicles, with their significant advantages such as environmental friendliness, energy efficiency, portability, and safety, can effectively alleviate the energy crisis and environmental pollution problems. Therefore, to meet the needs of building a resource-conserving society, the widespread adoption of electric vehicles has become an inevitable trend. Based on this, to adapt to the rapid development of the electric vehicle industry, a large number of charging stations need to be built.

[0003] For example, Chinese invention patent CN115958984B discloses a charging pile, which includes: a support frame, a moving mechanism, and a door structure; the moving mechanism is movably connected to the support frame, the door structure is disposed on the support frame, and the moving mechanism has a charging cable outlet; the door structure has a window for the moving mechanism. This technical solution achieves a movable design for the charging cable outlet, allowing it to move between the inside and outside of the device. In the idle state, the charging cable can be stored inside the device, avoiding excessive exposure, thereby achieving effective protection for the charging cable.

[0004] However, the charging piles disclosed in the aforementioned patents, as well as most charging piles currently on the market, are typically installed directly outdoors in the open air. This installation method not only occupies a large amount of ground space, affecting the aesthetics of the urban environment and the intensive use of land resources, but also makes the equipment susceptible to damage from accidental collisions with vehicles. In addition, long-term exposure to harsh natural environments such as wind, rain, and sun accelerates the aging of the charging pile's outer shell and internal components, reduces its sealing performance, and leads to electrical faults, leakage, and other safety hazards. This results in increased equipment maintenance frequency, significantly shortened service life, and increased operation and maintenance costs. Therefore, a sunken new energy vehicle charging pile is proposed to solve the above problems. Summary of the Invention

[0005] (a) Purpose of the invention

[0006] To address the technical problems existing in the background art, this invention proposes a sunken new energy vehicle charging pile, which has the advantages of not occupying ground space, not being easily damaged, and being easy to pull out, as well as active dehumidification and heat dissipation and rainwater recycling. It effectively solves the problems of existing charging piles being easily damaged, aging quickly, requiring frequent maintenance, and occupying ground space when installed outdoors.

[0007] (II) Technical Solution

[0008] This invention provides a sunken charging pile for new energy vehicles, comprising:

[0009] Foundation pit; main body of charging pile, installed inside the foundation pit;

[0010] The installation compartment is installed on one side of the charging pile body;

[0011] The charging gun is installed inside the installation compartment, and is electrically connected to the main body of the charging pile via a cable.

[0012] The support and guide mechanism is installed in the installation chamber. It is used to connect and support the charging gun, and to support and guide the charging gun to be raised and lowered outside the pit for use by personnel. It also drives and guides the cable between the charging gun and the charging pile body.

[0013] A drying chamber is installed on one side of the installation chamber; a dehumidifier is installed inside the drying chamber.

[0014] A pair of conductive connection compartments are installed on the inner top wall of the foundation pit to connect the foundation pit with the outside world and to filter and collect rainwater;

[0015] The fan, installed on the drying chamber, is used to draw air to dissipate heat and dehumidify the charging pile body and dehumidifier;

[0016] The conveying pipe fitting is installed between a pair of conductive connecting compartments, a dehumidifier, a water storage tank, the charging pile body, and the fan, and is used to guide the air used by the fan for dehumidification and heat dissipation.

[0017] The water storage tank is installed on the inner bottom wall of the foundation pit and fixed to the lower end of the installation tank and the drying tank. It is used to store rainwater filtered by the conveying pipe guide and connection tank.

[0018] Preferably, the support and guiding mechanism includes a lifting frame slidably mounted on the side of the charging pile body near the installation compartment. A connecting frame is fixedly connected to one side of the lifting frame. A support spring is installed on the side of the connecting frame away from the water storage tank. A mounting plate is fixedly connected to the side of the support spring away from the connecting frame. A gun holder is fixedly connected to the mounting plate. The charging gun is inserted into the gun holder. A guide cylinder penetrating the connecting frame is fixedly connected to the side of the mounting plate near the connecting frame. A guide motor is fixedly connected to the inner wall of the lifting frame. The output shaft of the guide motor penetrates the lifting frame. A support shaft is rotatably connected to the side of the lifting frame near the connecting frame. Guide wheels are fixedly connected to both the output shaft of the guide motor and the support shaft. A pair of auxiliary wheels are installed inside the connecting frame. A touch switch located below the lifting frame is installed on the inner wall of the installation compartment.

[0019] Furthermore, the inner wall of the connecting frame is equipped with an adjustment component that drives a pair of auxiliary wheels to adjust horizontally forward and backward;

[0020] The output shaft and support shaft of the guide motor are equipped with transmission components;

[0021] The inner wall of the lifting frame is equipped with a lifting component for driving the lifting frame to rise and fall.

[0022] Preferably, the support and guiding mechanism further includes a cover plate hinged to the top wall of the pit, and the cover plate is located directly above the charging gun. The top wall of the pit has an opening for the cover plate to pass through. A servo motor is fixedly installed on the side of the inner wall of the installation chamber away from the lifting frame. A threaded block is slidably connected to the side of the inner wall of the installation chamber away from the lifting frame. A threaded rod passing through the threaded block is fixedly connected to the output shaft of the servo motor. A drive rod with one end hinged to the cover plate is hinged to the side of the threaded block near the charging gun.

[0023] Preferably, the cover plate is convex in shape, and an annular sealing ring is fixedly connected to the outer edge of the convex end of the cover plate and the side of the mounting plate away from the lifting frame. A sealing gasket located inside the sealing ring is fixedly connected to the side of the mounting plate away from the lifting frame. Both the sealing gasket and the mounting plate are provided with a wire hole for the charging gun tail cable to pass through. A circular hole is provided on the inner top wall of the connecting frame for the guide cylinder to pass through, and a sealing strip located above the circular hole is fixedly connected to the guide cylinder.

[0024] Preferably, the lifting assembly includes a lifting motor fixedly connected to the inner wall of the lifting frame, and the output shaft of the lifting motor passes through the lifting frame. A gear is fixedly connected to the output shaft of the lifting motor. A long rack is installed on the side of the inner wall of the installation compartment away from the servo motor, and the rack meshes with the gear.

[0025] Preferably, the adjustment assembly includes an electric push rod fixedly connected to the inner wall of the connecting frame, and a push block fixedly connected to the output shaft of the electric push rod. A telescopic rod is installed between the side of the push block near the auxiliary wheel and the inner wall of the connecting frame, and a stop block is fixedly connected to the telescopic end of the telescopic rod. A support plate is slidably connected to the inner wall of the connecting frame, and a contact spring is fixedly connected between the stop block and the support plate. A pair of auxiliary wheels are symmetrically rotated and connected to the side of the support plate near the guide wheel via a rotating shaft, and the front and rear positions of each guide wheel correspond to each auxiliary wheel. A pressure sensor for contacting the stop block is installed on the push block.

[0026] Preferably, level gauges are fixedly installed on both the inner top wall and the inner bottom wall of the water storage tank, with the bottom level gauge being a low-level level gauge and the top level gauge being a high-level level gauge. A temperature sensor is installed on the inner top wall of the water storage tank, and a sealed chamber is installed on one side of the inner wall of the water storage tank. At least one heater is installed on the inner wall of the sealed chamber and extends through the sealed chamber.

[0027] Preferably, a cooling chamber is also fixedly installed on the inner wall of the water storage tank. A coil is fixedly installed on the inner wall of the cooling chamber, and the air inlet end of the coil is fixedly connected to the air outlet end of the dehumidifier through a pipe fitting. A water pump is fixedly installed on one side of the cooling chamber, and the liquid outlet end of the water pump is fixedly connected to the cooling chamber through a pipe fitting. The liquid inlet end of the water pump is fixedly connected to a water pumping pipe. The air outlet end of the coil is fixedly connected to a ventilation pipe that passes through the installation chamber and is fixedly connected to one side of the charging pile body. The end of the ventilation pipe connected to the charging pile body is fixedly connected to a ventilation port through a three-way valve.

[0028] Preferably, the conveying pipe includes an air inlet pipe fixedly connected between the air inlet end of the fan and a one-sided conductive connection chamber; the air outlet end of the fan and the air inlet end of the dehumidifier are fixedly connected through the pipe; a guide pipe with one end penetrating the water storage chamber and fixedly connected to the sealing chamber is fixedly connected to the air inlet pipe through a three-way valve; an exhaust pipe is fixedly connected between the side of the charging pile body away from the drying chamber and the other side conductive connection chamber; a connecting pipe with one end fixedly connected to the exhaust pipe is fixedly connected to the guide pipe through a three-way valve; the guide pipe and the exhaust pipe are also fixedly connected through a three-way valve; an exhaust pipe is fixedly connected to the guide pipe through a three-way valve; an exhaust port is fixedly connected to the exhaust pipe through a three-way valve; and a return pipe with one end fixedly connected to the back of the installation chamber is fixedly connected to the middle of the exhaust pipe through a three-way valve.

[0029] The lower end of the connecting chamber on the other side is fixedly connected to a first drain pipe, one end of which is fixedly connected to the back of the water storage tank. The side of the connecting chamber on one side near the drying chamber is fixedly connected to a second drain pipe that penetrates and extends into the water storage tank. The ends of the first drain pipe and the second drain pipe near the connecting chamber are both fixedly connected to auxiliary drain pipes, and the upper ends of the auxiliary drain pipes are fixedly connected to their corresponding connecting chambers.

[0030] Preferably, a filter screen is fixedly installed at the upper end of the connecting compartment, and a ventilation hole is opened in the inner top wall of the pit for the filter screen to pass through. A partition is fixedly connected to the middle of the inner bottom wall of each connecting compartment, and a pair of baffles is fixedly connected to the inner wall of each connecting compartment. The end of each pair of baffles away from the inner wall of the connecting compartment is located on both sides of the corresponding partition.

[0031] Compared with the prior art, the above-mentioned technical solution of the present invention has the following beneficial technical effects:

[0032] 1. This sunken new energy vehicle charging pile, by installing the main body of the charging pile and the charging gun in the pit, does not occupy the space above ground. This is conducive to the intensive use of land resources and can effectively prevent equipment damage caused by accidental vehicle collisions. In the non-use state, the charging pile is isolated from the outside world by the cover plate, sealing ring and other structures, avoiding long-term wind, rain and sun exposure, significantly slowing down the aging of the shell and internal components, reducing the frequency of maintenance and extending the service life.

[0033] 2. This sunken new energy vehicle charging pile can automatically raise and lower the charging gun through a support and guide mechanism. In cooperation with the guide wheel and auxiliary wheel, an upward driving force is applied to the cable when the gun is pulled out, making the operation easy and labor-saving and improving the user experience.

[0034] 3. This sunken new energy vehicle charging pile, through dehumidifier, fan and multiple circulation modes (internal and external circulation), can automatically switch according to the ambient temperature and humidity to cool down the main body of the charging pile, effectively prevent electrical faults caused by excessive temperature and improve operational reliability.

[0035] 4. This sunken new energy vehicle charging pile has a conductive connection compartment that can filter and collect rainwater and store it in a water storage tank. This water can be used to assist in cooling the air, reducing energy consumption and achieving energy conservation and environmental protection. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0037] Figure 2 This is a schematic diagram of the supporting and guiding mechanism structure of the present invention.

[0038] Figure 3 This is a schematic diagram of the adjustment component structure of the present invention.

[0039] Figure 4 This is a schematic diagram of the conveying pipe structure of the present invention.

[0040] Figure 5 This is a side view of the conveying pipe structure of the present invention;

[0041] Figure 6 This is a schematic diagram showing the connection between the delivery pipe and the main structure of the charging pile of the present invention.

[0042] Reference numerals: 1. Excavation pit; 2. Charging pile body; 3. Charging gun; 4. Support and guide mechanism; 41. Lifting frame; 42. Rack; 43. Lifting motor; 44. Gear; 45. Support spring; 46. Mounting plate; 47. Gun holder; 48. Guide wheel; 49. Transmission assembly; 410. Support plate; 411. Servo motor; 412. Threaded rod; 413. Slide groove; 414. Threaded block; 415. Drive rod; 416. Cover plate; 417. Guide cylinder; 418. Guide motor; 419. Touch switch; 420. Support shaft; 421. Abutment spring; 422. Auxiliary wheel; 423. Push block; 424. Telescopic rod; 425. Pressure sensor; 426. Sliding assembly; 4 27. Support block; 428. Electric push rod; 429. Connecting frame; 5. Drying chamber; 6. Dehumidifier; 7. Water storage tank; 71. Sealing chamber; 72. Heater; 73. Liquid level gauge; 74. Temperature sensor; 8. Cooling chamber; 81. Coil; 82. Water pump; 83. Ventilation duct; 84. Ventilation outlet; 85. Water extraction pipe; 9. Conveying pipe fittings; 91. Air inlet duct; 92. Air guide duct; 93. Exhaust duct; 94. Return duct; 95. Connecting pipe; 96. Exhaust duct; 97. Exhaust outlet; 98. First drain pipe; 99. Second drain pipe; 910. Auxiliary drain pipe; 10. Conductive connection chamber; 101. Baffle; 102. Partition; 103. Filter screen; 11. Fan; 12. Installation chamber. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0044] In the description of the invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0045] In the description of the invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, such as welding, riveting, or bonding; it can also be a detachable connection, such as threaded connection, keyed connection, or pin connection; or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0046] like Figure 1-6 As shown, the present invention proposes a sunken new energy vehicle charging pile, comprising:

[0047] Pit 1; Charging pile body 2, installed inside pit 1;

[0048] The installation compartment 12 is installed on one side of the charging pile body 2;

[0049] The charging gun 3 is installed inside the installation chamber 12, and the charging gun 3 is electrically connected to the charging pile body 2 via a cable.

[0050] The support and guide mechanism 4 is installed in the installation chamber 12. It is used to connect and support the charging gun 3, and to support and guide the charging gun 3 to be raised and lowered outside the pit 1 for use by personnel, as well as to drive and guide the cable between the charging gun 3 and the charging pile body 2.

[0051] Drying chamber 5 is installed on one side of installation chamber 12; dehumidifier 6 is installed inside drying chamber 5;

[0052] A pair of conductive connection chambers 10 are installed on the inner top wall of the foundation pit 1 to connect the foundation pit 1 with the outside world and to filter and collect rainwater;

[0053] Fan 11 is installed on drying chamber 5 and is used to draw air to heat up and dehumidify the charging pile body 2 and dehumidifier 6.

[0054] The conveying pipe 9 is installed between a pair of conductive connection chambers 10, dehumidifier 6, water storage tank 7, charging pile body 2, and fan 11, and is used to guide the air used by the fan 11 for dehumidification and heat dissipation.

[0055] The water storage tank 7 is installed on the inner bottom wall of the foundation pit 1 and fixed to the lower end of the installation tank 12 and the drying tank 5. It is used to store rainwater filtered by the guide and connection tank 10 of the conveying pipe fitting 9.

[0056] In this invention, the support and guiding mechanism 4 lifts the charging gun 3 from the installation compartment 12 to the outside of the pit 1 for the user to remove and use; after use, it is returned to the compartment. Simultaneously, this mechanism also provides auxiliary drive for the cable connecting the charging gun 3 to the charging pile body 2, making removing and dragging the gun easier; the fan 11 draws air from the outside or inside the pit through the conveying pipe 9 and a pair of conductive connecting compartments 10. The air is first dried by the dehumidifier 6, then flows through the charging pile body 2 for heat dissipation, and finally discharged or returned through the pipes. The dehumidifier 6 itself can also be regenerated and dried by hot air; the pair of conductive connecting compartments 10 are installed on the top wall inside the pit 1, which can both conduct air between the inside and outside and filter and collect rainwater. The collected rainwater is guided through the conveying pipe 9 and stored in the water storage tank 7, which can be used for subsequent auxiliary cooling of the dissipated air.

[0057] It should be noted that the inner top wall of the foundation pit 1 is sealed by cement cover plates or steel plates to block and seal the charging pile body 2, installation chamber 12 and conductive connection chamber 10 in sequence. At the same time, after sealing, inspection wells and inspection entrances should be reserved for operators to enter the equipment in the foundation pit 1 for maintenance.

[0058] In an optional embodiment, the support guide mechanism 4 includes a lifting frame 41 slidably mounted on the side of the charging pile body 2 near the installation compartment 12. A connecting frame 429 is fixedly connected to one side of the lifting frame 41. A support spring 45 is installed on the side of the connecting frame 429 away from the water storage tank 7, and a mounting plate 46 is fixedly connected to the side of the support spring 45 away from the connecting frame 429. A gun holder 47 is fixedly connected to the mounting plate 46, and the charging gun 3 is inserted into the gun holder 47. The side of the mounting plate 46 near the connecting frame 429 is fixed. A guide cylinder 417 is connected to the connecting frame 429. A guide motor 418 is fixedly connected to the inner wall of the lifting frame 41, and the output shaft of the guide motor 418 passes through the lifting frame 41. A support shaft 420 is rotatably connected to the side of the lifting frame 41 near the connecting frame 429. Guide wheels 48 are fixedly connected to both the output shaft of the guide motor 418 and the support shaft 420. A pair of auxiliary wheels 422 are installed inside the connecting frame 429. A touch switch 419 located below the lifting frame 41 is installed on the inner wall of the installation chamber 12.

[0059] Furthermore, the inner wall of the connecting frame 429 is provided with an adjustment component that drives a pair of auxiliary wheels 422 to adjust horizontally and backward.

[0060] A transmission assembly 49 is provided on the output shaft of the guide motor 418 and the support shaft 420;

[0061] The inner wall of the lifting frame 41 is provided with a lifting component for driving the lifting frame 41 to rise and fall.

[0062] In this embodiment, the lifting frame 41 is driven by the lifting assembly to slide up and down along the side of the charging pile body 2. When the lifting frame 41 rises, it drives the connecting frame 429, the support spring 45, the mounting plate 46, and the charging gun 3 on the gun holder 47 to rise together. When the lifting frame 41 touches the touch switch 419 on the inner wall of the mounting chamber 12, it stops rising and the charging gun 3 is exposed to the ground for use. When it descends, it moves in the opposite direction and the charging gun 3 is retracted into the mounting chamber 12. Before the user removes the gun, the adjusting assembly drives a pair of auxiliary wheels 422 to move horizontally and clamp the cable together with the guide wheel 48. The guide motor 418 drives the two guide wheels 48 to rotate synchronously through the transmission assembly 49. The auxiliary wheels 422 apply an upward driving force to the cable, making it easy and effortless to remove the gun. After the charging gun 3 is removed, the support spring 45 can make the mounting plate 46 elastically return to its original position, and the guide cylinder 417 plays a stable guiding role.

[0063] It should be noted that the lifting frame 41 is fixedly connected to a number of no less than a pair of sliders on the side away from the connecting frame 429, and each pair of sliders is symmetrically distributed front and back. On the side of the inner wall of the installation chamber 12 close to the lifting frame 41, a pair of guide rails are fixedly connected, which are symmetrically distributed front and back and pass through the sliders. Each guide rail is slidably connected to its corresponding slider, so that the lifting frame 41 can slide and rise stably on the inner wall of the installation chamber 12.

[0064] The lifting assembly includes a lifting motor 43 fixedly connected to the inner wall of the lifting frame 41, and the output shaft of the lifting motor 43 passes through the lifting frame 41. A gear 44 is fixedly connected to the output shaft of the lifting motor 43. A long rack 42 is installed on the inner wall of the mounting compartment 12 away from the servo motor 411. The rack 42 meshes with the gear 44. The gear 44 and the rack 42 are located between each pair of symmetrically distributed sliders. When the starting lifting motor 43 drives the gear 44 on its output shaft to rotate, the rack 42 meshes with it, and the sliders and guide rails guide the lifting frame 41 to drive the lifting frame 41 to adjust its position stably along the vertical and horizontal plane.

[0065] It should be noted that a support ring is installed at the connection between the connecting frame 429 and the support spring 45, and a pressure sensor is also installed between the support ring and the connecting frame 429. When the mounting plate 46 is subjected to resistance, the support spring 45 can drive the support to squeeze the corresponding pressure sensor. When the corresponding pressure sensor reaches the set threshold, the lifting motor 43 stops running.

[0066] Furthermore, the adjustment assembly includes an electric push rod 428 fixedly connected to the inner wall of the connecting frame 429, and a push block 423 fixedly connected to the output shaft of the electric push rod 428. A telescopic rod 424 is installed between the side of the push block 423 near the auxiliary wheel 422 and the inner wall of the connecting frame 429, and a stop block 427 is fixedly connected to the telescopic end of the telescopic rod 424. A support plate 410 is slidably connected to the inner wall of the connecting frame 429, and a stop spring 421 is fixedly connected between the stop block 427 and the support plate 410. A pair of auxiliary wheels 422 are symmetrically rotated and connected to the side of the support plate 410 near the guide wheel 48 through a rotating shaft, and the front and rear positions of each guide wheel 48 and each auxiliary wheel 422 correspond to each other. A pressure sensor 425 that abuts the stop block 427 is installed on the push block 423.

[0067] When the output end of the electric push rod 428 drives the push block 423 to move horizontally towards the side close to the guide wheel 48, the auxiliary wheel 422 can be driven to approach the guide wheel 48 and cooperate with the guide wheel 48 to clamp the cable connecting the charging gun 3 and the charging pile body 2. After the start of the guide motor 418 drives the two guide wheels 48 to rotate synchronously through the transmission component 49, it can cooperate with the auxiliary wheel 422 to transport the cable at the tail end of the charging gun 3 from bottom to top, making it easier for the operator to pull out the charging gun 3 and drag the charging gun 3.

[0068] The telescopic rod 424 consists of a sleeve rod and a sliding rod, which are slidably connected. The sliding rod is L-shaped, and the end of the sliding rod away from the sleeve rod is fixed to the inner wall of the connecting frame 429, while the end of the sleeve rod away from the sliding rod is fixed to the abutment block 427. Since the abutment block 427 and the support plate 410 are elastically supported by the abutment spring 421, when the electric push rod 428 pushes the telescopic rod 424 horizontally through the push block 423, the telescopic rod 424 is in a retracted state when the auxiliary wheel 422 and the guide wheel 48 clamp the tail cable of the charging gun 3. At the same time, the pressure sensor 425 will abut against the abutment block 427 and be subjected to force. When the elastic force generated by the compression and reset of the abutment spring 421 acts on the pressure sensor 425 through the abutment block 427 and reaches the threshold set by the pressure sensor 425, it indicates that the tail cable of the charging gun 3 is in a clamped state, and the electric push rod 428 stops driving.

[0069] It should be noted that a sliding assembly 426 is provided between the support plate 410 and the inner wall of the connecting frame 429. The sliding assembly 426 is supported by a guide block and a slide rail. The slide rail is installed on the inner wall of the connecting frame 429 and passes through the guide block. The guide block is fixed to the support plate 410 and is slidably connected to the slide rail, so that the support plate 410 can slide stably and horizontally on the inner wall of the connecting frame 429 through the sliding support of the slide rail and the guide block.

[0070] Furthermore, the transmission assembly 49 consists of a pair of pulleys and a transmission belt. The pair of pulleys are fixedly connected to the output shaft of the guide motor 418 and the support shaft 420, respectively, while the transmission belt is sleeved on the two pulleys, so that when the output shaft of the guide motor 418 rotates, it can drive the support shaft 420 to rotate synchronously through the two pulleys and the transmission belt.

[0071] In an optional embodiment, the support guide mechanism 4 further includes a cover plate 416 hinged to the inner top wall of the pit 1, and the cover plate 416 is located directly above the charging gun 3. The inner top wall of the pit 1 has an opening through which the cover plate 416 passes. A servo motor 411 is fixedly installed on the side of the inner wall of the installation chamber 12 away from the lifting frame 41. A threaded block 414 is slidably connected on the side of the inner wall of the installation chamber 12 away from the lifting frame 41. The output shaft of the servo motor 411 is fixedly connected to a threaded rod 412 that passes through the threaded block 414. A drive rod 415 with one end hinged to the cover plate 416 is hinged to the side of the threaded block 414 near the charging gun 3.

[0072] In this embodiment, after the servo motor 411 is started and drives the threaded rod 412 to rotate axially, the threaded rod 412 drives the threaded block 414 to lift and adjust. The threaded block 414 can drive the drive rod 415 to push and pull the cover plate 416 to open or close on the opening of the pit 1. When the cover plate 416 is opened on the opening of the pit 1, space can be left for the charging gun 3 to rise and move out of the pit 1.

[0073] The inner wall of the installation chamber 12, away from the lifting frame 41, is fixedly connected to a sliding groove 413 that passes through the threaded block 414, and the sliding groove 413 is slidably connected to the threaded block 414.

[0074] It should be noted that the cover plate 416 is convex in shape. Annular sealing rings are fixedly connected to the outer edge of the convex end of the cover plate 416 and the side of the mounting plate 46 away from the lifting frame 41. When the cover plate 416 is closed at the opening, the sealing rings fit against the opening of the pit 1, which can increase the airtightness between the cover plate 416 and the opening of the pit 1. At the same time, when the mounting plate 46 is raised, the sealing rings on the mounting plate 46 fit against the inner top wall of the pit 1, which can also increase the airtightness of the mounting plate 46 fitting against the opening of the inner top wall of the pit 1.

[0075] A sealing gasket located inside the sealing ring is fixedly connected to the side of the mounting plate 46 away from the lifting frame 41 to increase the airtightness between the charging gun 3 tail cable and the mounting plate 46. Both the sealing gasket and the mounting plate 46 have through holes for the charging gun 3 tail cable to pass through. The inner top wall of the connecting frame 429 has a round hole for the guide cylinder 417 to pass through, and a sealing strip located above the round hole is fixedly connected to the guide cylinder 417. Since the mounting plate 46 and the connecting frame 429 are elastically supported by the support spring 45, when the mounting plate 46 is raised, it will adhere to and squeeze the inner top wall of the pit 1 opening. The mounting plate 46 squeezed by the inner top wall of the pit 1 will drive the guide cylinder 417 to descend, so that the sealing strip on the guide cylinder 417 abuts against the connecting frame 429 to increase the airtightness between the guide cylinder 417 and the connecting frame 429.

[0076] In the above embodiments, the electrical connection cables of the electronic components all pass through one side of the charging pile body 2 and extend into the charging pile body 2, and are electrically connected to the control components inside the charging pile body 2. A mounting hole for the cable to pass through is opened on one side of the charging pile body 2, and the mounting hole is sealed with sealant.

[0077] In an optional embodiment, level gauges 73 are fixedly installed on both the inner top wall and the inner bottom wall of the water storage tank 7, with the bottom level gauge 73 being a low level gauge 73 and the top level gauge 73 being a high level gauge 73. A temperature sensor 74 is installed on the inner top wall of the water storage tank 7, and a sealing chamber 71 is installed on one side of the inner wall of the water storage tank 7. At least one heater 72 is installed on the inner wall of the sealing chamber 71 and extends through the sealing chamber 71.

[0078] In this embodiment, the liquid level flowing into the water storage tank 7 is monitored by the liquid level gauge 73 in the water storage tank 7, while the temperature sensor 74 monitors the temperature in the water storage tank 7. In case the water stored in winter is prone to freezing or the temperature is too low to affect the flow, the heater 72 is activated to heat the water stored in the water storage tank 7.

[0079] It should be noted that the side of the water storage tank 7 away from the main body 2 of the charging pile is connected to at least one drain pipe, and a solenoid valve is installed on the drain pipe. Through the cooperation of the solenoid valve and the level gauge 73, when the water stored in the water storage tank 7 reaches the monitoring height, the solenoid valve on the drain pipe opens to discharge the water in the water storage tank 7, so as to prevent the water in the water storage tank 7 from being stored too much, which would prevent the delivery pipe 9 from continuing to discharge water. At the same time, the outlet of the drain pipe is connected to the municipal pipe network.

[0080] In an optional embodiment, a cooling chamber 8 is also fixedly installed on the inner wall of the water storage tank 7. A coil 81 is fixedly installed on the inner wall of the cooling chamber 8, and the air inlet end of the coil 81 is fixedly connected to the air outlet end of the dehumidifier 6 through a pipe fitting. A water pump 82 is fixedly installed on one side of the cooling chamber 8, and the liquid outlet end of the water pump 82 is fixedly connected to the cooling chamber 8 through a pipe fitting. The liquid inlet end of the water pump 82 is fixedly connected to a water pumping pipe 85. The air outlet end of the coil 81 is fixedly connected to a ventilation pipe 83 that penetrates the installation chamber 12 and is fixedly connected to one side of the charging pile body 2. The end of the ventilation pipe 83 that is connected to the charging pile body 2 is fixedly connected to a ventilation port 84 through a three-way valve.

[0081] In this embodiment, the water, after being dehumidified and dried by the dehumidifier 6, is discharged into the coil 81 through pipes. At this time, the water pump 82, which is activated, can pump the water in the water storage tank 7 into the cooling chamber 8 to cool the air flowing through the coil 81. The cooled air is then transported to the lower part of the inner cavity of the charging pile body 2 through the ventilation pipe 83 and blown from bottom to top to dissipate heat from the charging pile body 2. At the same time, the ventilation port 84 on the ventilation pipe 83 is fixedly connected by a three-way valve. Therefore, after the three-way valve is switched on, the low-temperature dry air transported by the ventilation pipe 83 can also be discharged through the ventilation port 84 to dehumidify and dissipate heat from the installation chamber 12.

[0082] It should be noted that the cooling chamber 8 has a water outlet on the side away from the water pump 82, and a one-way valve is installed on the water outlet to discharge the water delivered to the cooling chamber 8. The pipe connecting the air outlet of the dehumidifier 6 and the coil 81 is T-shaped, and the T-end connection is fixedly connected by a three-way valve. By switching the three-way valve, the air dried by the dehumidifier 6 is discharged. The end of the T-shaped pipe that passes through the drying chamber 5 also passes through the pit 1 and is connected to the outside. A one-way valve is installed at the end that passes through the drying chamber 5.

[0083] The installation chamber 12 is conical at one end near the water storage chamber 7, and a water outlet is provided at the conical end of the installation chamber 12. A one-way valve is installed on the water outlet so that when the charging gun 3 is raised and used in rainy weather, less rainwater will flow into the water storage chamber 7 through the conical end of the installation chamber 12.

[0084] In an optional embodiment, the conveying pipe 9 includes an air inlet pipe 91 fixedly connected between the air inlet end of the fan 11 and the one-sided conductive connection chamber 10. The air outlet end of the fan 11 and the air inlet end of the dehumidifier 6 are fixedly connected through the pipe. A guide pipe 92, which passes through the water storage chamber 7 and is fixedly connected to the sealing chamber 71, is fixedly connected to the air inlet pipe 91 through a three-way valve. An exhaust pipe 96 is fixedly connected between the side of the charging pile body 2 away from the drying chamber 5 and the other side conductive connection chamber 10. A connecting pipe 95, which is fixedly connected to the exhaust pipe 96, is fixedly connected to the guide pipe 92 through a three-way valve. The guide pipe 92 and the exhaust pipe 96 are also fixedly connected through a three-way valve. An exhaust pipe 93 is fixedly connected to the guide pipe 92 through a three-way valve. An exhaust port 97 is fixedly connected to the exhaust pipe 96 through a three-way valve. A return pipe 94, which is fixedly connected to the back of the installation chamber 12, is fixedly connected to the middle of the exhaust pipe 96 through a three-way valve.

[0085] The lower end of the other side of the connecting chamber 10 is fixedly connected to a first drain pipe 98, one end of which is fixedly connected to the back of the water storage chamber 7. The side of the connecting chamber 10 near the drying chamber 5 is fixedly connected to a second drain pipe 99 that penetrates and extends into the water storage chamber 7. The ends of the first drain pipe 98 and the second drain pipe 99 near the connecting chamber 10 are both fixedly connected to an auxiliary drain pipe 910, and the upper ends of the auxiliary drain pipes 910 are fixedly connected to their corresponding connecting chambers 10.

[0086] In this embodiment, through the air inlet pipe 91 between the air inlet end of the fan 11 and the one-sided conductive connection chamber 10, the air outside the pit 1 can be drawn into the dehumidifier 6. After drying, it is transported to the cooling chamber 8 for cooling and heat dissipation of the charging pile body 2. Then it is discharged through the exhaust pipe 96 and the other side conductive connection chamber 10, forming an external circulation heat dissipation method for the charging pile body 2.

[0087] When it rains or the outside temperature of the foundation pit 1 is higher than the temperature inside the foundation pit 1, the air inlet pipe 91 is switched to connect with the air guide pipe 92 through the three-way valve, and the air guide pipe 92 is switched to connect with the exhaust pipe 93 through the three-way valve, so that the air drawn by the fan 11 is the air inside the foundation pit 1. After dehumidification and cooling and heat dissipation of the charging pile body 2, it is discharged into the foundation pit 1 through the exhaust pipe 96 and the exhaust port 97 connected by the three-way valve, thus forming a circulating heat dissipation method for the charging pile body 2.

[0088] Meanwhile, when the dehumidifier 6 needs to be dried after a period of use, the air duct 92 switches to an L-shaped connection with the connecting pipe 95 or a T-shaped connection with the connecting pipe 95 via a three-way valve. This allows the hot air discharged from the charging pile body 2 to be drawn back into the air inlet pipe 91 through the connecting pipe 95 and delivered to the dehumidifier 6 to dry the water molecule filter structure inside the dehumidifier 6. If the air temperature discharged from the charging pile body 2 is insufficient, the heater 72 is activated, allowing the air duct 92 to draw in the air heated by the heater 72 in the sealed chamber 71. This air is then mixed with the hot air discharged from the charging pile body 2 to dry the dehumidifier 6, maintaining its dehumidification effect. The T-shaped pipe connecting the air outlet of the dehumidifier 6 to the coil 81 is then switched via a three-way valve to discharge the air dried by the dehumidifier 6 into the drying chamber 5.

[0089] It should be noted that ventilation holes that are connected to each other are fixedly opened between the side of the sealed chamber 71 away from the air guide pipe 92 and the inner wall of the water storage chamber 7. A temperature sensor is installed inside the wall of the exhaust pipe 96 to monitor the temperature of the air discharged from the charging pile body 2, thereby controlling the heat dissipation time.

[0090] In an optional embodiment, a filter screen 103 is fixedly installed on the upper end of the connecting chamber 10, and a ventilation hole for the filter screen 103 to pass through is opened on the inner top wall of the pit 1. A partition 102 is fixedly connected to the middle of the inner bottom wall of each connecting chamber 10, and a pair of baffles 101 are fixedly connected to the inner wall of each connecting chamber 10. The end of each pair of baffles 101 away from the inner wall of the connecting chamber 10 is located on both sides of its corresponding partition 102.

[0091] In this embodiment, the foundation pit 1 is connected to the outside world through the connecting chamber 10, and the connecting chamber 10 can collect rainwater. After being blocked and guided by the baffle 101, the rainwater is guided into the water storage tank 7 through the first drainage pipe 98, the second drainage pipe 99 and the auxiliary drainage pipe 910 for storage. At the same time, the filter screen 103 on the connecting chamber 10 can filter the collected rainwater.

[0092] It should be noted that temperature and humidity sensors, not shown in the figure, are installed inside one of the baffles 101 and inside the wall of the exhaust pipe 93. This allows the connecting chamber 10 and the exhaust pipe 93 to monitor the temperature and humidity inside the pit 1 and outside the pit 1, respectively. The three-way valves on the air inlet pipe 91 and the air duct 92 can be switched to allow the fan 11 to draw air from the connecting chamber 10 or the pit 1.

[0093] The baffle 101 is L-shaped, and the L end of the baffle 101 is inclined. The ends of the two baffles 101 in each conductive connection compartment 10 are located on one side and the other side of the partition 102, respectively.

[0094] The working principle in the above embodiments is as follows:

[0095] Initial state: The charging pile is in standby state, the charging gun 3 is plugged into the gun holder 47, and the whole is located in the installation chamber 12. The cover plate 416 is closed on the opening at the top of the pit 1, and the annular sealing ring on it ensures isolation from the external environment and prevents rainwater and debris from entering.

[0096] The process of raising and guiding the charging gun:

[0097] When the user needs to charge, the control system is activated. First, the servo motor 411 starts and drives the threaded rod 412 on its output shaft to rotate. The threaded rod 412 drives the threaded block 414 to slide down along the slide groove 413. The threaded block 414 pulls the cover plate 416 around its hinge point and flips it open by driving the drive rod 415 that is hinged to it, making room for the charging gun 3 to rise.

[0098] After the cover plate 416 is opened, the lifting assembly starts to work. The lifting motor 43 on the inner wall of the lifting frame 41 starts and drives the gear 44 on its output shaft to rotate. Since the gear 44 meshes with the long rack 42 fixed on the inner wall of the installation chamber 12, and the lifting frame 41 is limited by the cooperation of the slider and the guide rail, the rotation of the gear 44 will drive the entire lifting frame 41 and the components connected to it to rise smoothly in the vertical direction.

[0099] As the lifting frame 41 rises, the charging gun 3 inserted into the gun holder 47 also rises synchronously. When the lifting frame 41 rises to the point where the support spring 45 is squeezed to the set threshold, it indicates that the charging gun 3 has risen to the predetermined height. At the same time, the annular sealing ring above the mounting plate 46 will fit against the inner top wall of the pit 1 to form a seal, preventing rainwater from seeping into the pit 1 from the opening. At this time, the gripping part of the charging gun 3 is exposed above the ground for users to take.

[0100] Gun cable guide:

[0101] When the user needs to pull out the charging gun 3, the support guide mechanism 4 provides assistance. First, the electric push rod 428 on the inner wall of the connecting frame 429 is activated, driving the push block 423 to move horizontally towards the guide wheel 48. The push block 423 pushes the support plate 410 closer to the guide wheel 48 through the telescopic rod 424 and the abutment block 427, so that a pair of auxiliary wheels 422 on the support plate 410 gradually approach and clamp the cable between the charging gun 3 and the charging pile body 2. During this process, the abutment spring 421 is compressed, and the elastic force generated by it acts on the pressure sensor 425 through the abutment block 427. When the pressure reaches the set threshold, the electric push rod 428 stops, indicating that the cable has been properly clamped.

[0102] At the same time, the guide motor 418 starts, and the guide wheel 48 on its output shaft drives another guide wheel 48 on the support shaft 420 to rotate synchronously through the transmission component 49. Under the coordinated action of the two guide wheels 48 and the two auxiliary wheels 422, the cable is driven upward. The user only needs to use a small amount of force to pull out, lift and drag the charging gun 3. When dragging the charging gun 3 for charging, the cable is transported smoothly and with very little effort. After the charging gun 3 is pulled out.

[0103] Dehumidification, heat dissipation, and air circulation:

[0104] External circulation mode: When the temperature outside the pit 1 is suitable and the humidity is low, the system switches the three-way valve to connect the air inlet pipe 91 with the connecting chamber 10 on one side. The fan 11 draws in fresh air from the outside through the filter screen 103. The air enters the dehumidifier 6 through the air inlet pipe 91. After the dehumidifier 6 dries the air, the dry air enters the coil 81 in the cooling chamber 8 through the pipe. If auxiliary cooling is required at this time, the water pump 82 will draw the filtered rainwater from the water storage tank 7 through the water pump pipe 85 and send it into the cooling chamber 8 to perform heat exchange and cooling on the air in the coil 81. The dry and cold air after dehumidification and cooling enters the charging pile body 2 through the ventilation pipe 83 and blows it upward from the low position to effectively dissipate heat from the internal electronic components. The air carrying heat is finally discharged to the outside of the pit 1 through the exhaust pipe 96 and the connecting chamber 10 on the other side.

[0105] Internal circulation mode: When the external environment is harsh, such as rain or high temperature and humidity, the system switches the three-way valve to disconnect the air inlet pipe 91 from the conductive connection chamber 10, and instead connect it to the exhaust pipe 93 through the air guide pipe 92. At this time, the fan 11 draws in the air inside the pit 1. After the air undergoes the same dehumidification and cooling, if necessary, it will dissipate heat for the charging pile body 2. However, at this time, the air carrying heat will not be discharged to the outside, but will be switched through the three-way valve on the exhaust pipe 96 and discharged back into the pit 1 from the exhaust port 97 to form an internal circulation, so as to avoid the harsh external environment from affecting the internal environment.

[0106] Dehumidifier regeneration: When the drying structure inside the dehumidifier 6 is saturated, the system will regenerate it. At this time, the hot air discharged from the charging pile body 2 or the hot air generated by the heater 72 is utilized. The three-way valve is switched to connect the air duct 92 and the connecting pipe 95. The hot air discharged from the charging pile body 2 or the air mixed with the air heated by the heater 72 in the sealed chamber 71 is re-drawn into the air inlet pipe 91 through the connecting pipe 95 and sent into the dehumidifier 6. The high-temperature air will take away the moisture in the drying structure of the dehumidifier 6, restoring its drying capacity. The exhaust gas with moisture is switched through the three-way valve on the T-shaped pipe at the air outlet of the dehumidifier 6 and directly discharged outside the pit 1.

[0107] Rainwater harvesting and utilization:

[0108] When it rains, rainwater is filtered through the filter screen 103 at the top opening of the foundation pit 1 and then enters the connecting chamber 10. Inside the connecting chamber 10, after being blocked by the baffle 101 and guided by the partition 102, the rainwater smoothly collects at the bottom of the chamber and flows into the water storage tank 7 through the first drain pipe 98, the second drain pipe 99, and the auxiliary drain pipe 910 for storage. The level gauge 73 in the water storage tank 7 monitors the water level. When the water level is too high, the drain pipe controlled by the solenoid valve automatically opens to discharge the excess water into the municipal pipe network. When the water temperature is too low or freezing occurs in winter, the temperature sensor 74 detects this and activates the heater 72 in the sealed chamber 71 to heat the water in the water storage tank 7 to prevent freezing. In addition to being used as a cooling medium for cooling the air, the stored rainwater can also be used for other maintenance purposes.

[0109] Charging gun recycling:

[0110] After charging is complete, the user inserts the charging gun 3 back into the gun holder 47. At this time, the system reverses the above process. The electric push rod 428 drives the auxiliary wheel 422 to reset, the cable is released, the lifting motor 43 reverses, and drives the lifting frame 41 and the charging gun 3 to descend back into the installation chamber 12 through the gear 44 and rack 42. When the installation plate 46 descends to the point of contacting the touch switch 419, the lifting motor 43 stops running, the servo motor 411 reverses, and pulls the cover plate 416 to close through the threaded block 414 and the drive rod 415, resealing the opening of the pit 1 and completing a complete work cycle.

[0111] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sunken charging pile for new energy vehicles, characterized in that, include: Excavation pit (1); charging pile body (2), installed inside the excavation pit (1); The installation compartment (12) is installed on one side of the charging pile body (2); The charging gun (3) is installed in the installation compartment (12), and the charging gun (3) is electrically connected to the charging pile body (2) via a cable; The support and guide mechanism (4) is installed in the installation chamber (12) for connecting the support charging gun (3), and for supporting and guiding the charging gun (3) to rise and fall outside the pit (1) for use by the user, as well as for driving and guiding the cable between the charging gun (3) and the charging pile body (2). A drying chamber (5) is installed on one side of the mounting chamber (12); a dehumidifier (6) is installed inside the drying chamber (5); A pair of conductive connection chambers (10) are installed on the inner top wall of the foundation pit (1) to connect the foundation pit (1) with the outside world and to filter and collect rainwater; A fan (11) is installed on the drying chamber (5) to draw air to heat up and dehumidify the charging pile body (2) and the dehumidifier (6); The conveying pipe (9) is installed between a pair of conductive connection chambers (10), dehumidifier (6), water storage tank (7), charging pile body (2) and fan (11) to guide the air used by the fan (11) for dehumidification and heat dissipation; The water storage tank (7) is installed on the inner bottom wall of the pit (1) and fixed to the lower end of the installation tank (12) and the drying tank (5) for storing rainwater filtered by the conveying pipe fitting (9) and the guide and connecting tank (10).

2. The sunken new energy vehicle charging pile according to claim 1, characterized in that, The support and guiding mechanism (4) includes a lifting frame (41) slidably mounted on the side of the charging pile body (2) near the installation compartment (12). A connecting frame (429) is fixedly connected to one side of the lifting frame (41). A support spring (45) is installed on the side of the connecting frame (429) away from the water storage tank (7). A mounting plate (46) is fixedly connected to the side of the support spring (45) away from the connecting frame (429). A gun holder (47) is fixedly connected to the mounting plate (46). The charging gun (3) is inserted into the gun holder (47). A connecting frame (47) is fixedly connected to the side of the mounting plate (46) near the connecting frame (429). A guide cylinder (417) passes through the connecting frame (429). A guide motor (418) is fixedly connected to the inner wall of the lifting frame (41), and the output shaft of the guide motor (418) passes through the lifting frame (41). A support shaft (420) is rotatably connected to the side of the lifting frame (429) near the connecting frame (429). Guide wheels (48) are fixedly connected to both the output shaft of the guide motor (418) and the support shaft (420). A pair of auxiliary wheels (422) are installed inside the connecting frame (429). A touch switch (419) located below the lifting frame (41) is installed on the inner wall of the installation chamber (12). Furthermore, the inner wall of the connecting frame (429) is provided with an adjustment component that drives a pair of auxiliary wheels (422) to adjust horizontally back and forth; The output shaft of the guide motor (418) and the support shaft (420) are provided with transmission components (49). The inner wall of the lifting frame (41) is provided with a lifting component for driving the lifting frame (41) to lift.

3. A sunken new energy vehicle charging pile according to claim 2, characterized in that, The support and guide mechanism (4) also includes a cover plate (416) hinged to the top wall of the pit (1), and the cover plate (416) is located directly above the charging gun (3). The top wall of the pit (1) has an opening for the cover plate (416) to pass through. A servo motor (411) is fixedly installed on the side of the inner wall of the installation chamber (12) away from the lifting frame (41). A threaded block (414) is slidably connected on the side of the inner wall of the installation chamber (12) away from the lifting frame (41). The output shaft of the servo motor (411) is fixedly connected to a threaded rod (412) that passes through the threaded block (414). A drive rod (415) with one end hinged to the cover plate (416) is hinged to the side of the threaded block (414) near the charging gun (3).

4. A sunken new energy vehicle charging pile according to claim 3, characterized in that, The cover plate (416) is convex in shape. An annular sealing ring is fixedly connected to the outer edge of the convex end of the cover plate (416) and the side of the mounting plate (46) away from the lifting frame (41). A sealing gasket located inside the sealing ring is fixedly connected to the side of the mounting plate (46) away from the lifting frame (41). Both the sealing gasket and the mounting plate (46) are provided with a wire hole for the charging gun (3) tail cable to pass through. The inner top wall of the connecting frame (429) is provided with a round hole for the guide cylinder (417) to pass through. A sealing strip located above the round hole is fixedly connected to the guide cylinder (417).

5. A sunken new energy vehicle charging pile according to claim 4, characterized in that, The lifting assembly includes a lifting motor (43) fixedly connected to the inner wall of the lifting frame (41), and the output shaft of the lifting motor (43) passes through the lifting frame (41). A gear (44) is fixedly connected to the output shaft of the lifting motor (43). A long rack (42) is installed on the side of the inner wall of the installation chamber (12) away from the servo motor (411), and the rack (42) meshes with the gear (44).

6. A sunken new energy vehicle charging pile according to claim 5, characterized in that, The adjustment assembly includes an electric push rod (428) fixedly connected to the inner wall of the connecting frame (429), and a push block (423) fixedly connected to the output shaft of the electric push rod (428). A telescopic rod (424) is installed between the side of the push block (423) near the auxiliary wheel (422) and the inner wall of the connecting frame (429). A stop block (427) is fixedly connected to the telescopic end of the telescopic rod (424). A support plate (410) is slidably connected to the inner wall of the connecting frame (429). A stop spring (421) is fixedly connected between the stop block (427) and the support plate (410). A pair of auxiliary wheels (422) are symmetrically connected to the side of the support plate (410) near the guide wheel (48) via a rotating shaft. Each guide wheel (48) corresponds to the front and rear positions of each auxiliary wheel (422). A pressure sensor (425) for the stop block (427) is installed on the push block (423).

7. A sunken new energy vehicle charging pile according to claim 1, characterized in that, The water storage tank (7) is fixedly equipped with level gauges (73) on its inner top and bottom walls. The bottom level gauge (73) is a low level gauge (73), while the top level gauge (73) is a high level gauge (73). The water storage tank (7) is equipped with a temperature sensor (74) on its inner top wall. A sealing chamber (71) is installed on one side of the inner wall of the water storage tank (7). The inner wall of the sealing chamber (71) is equipped with at least one heater (72) that extends through the sealing chamber (71).

8. A sunken new energy vehicle charging pile according to claim 1, characterized in that, A cooling chamber (8) is also fixedly installed on the inner wall of the water storage tank (7). A coil (81) is fixedly installed on the inner wall of the cooling chamber (8). The air inlet of the coil (81) is fixedly connected to the air outlet of the dehumidifier (6) through a pipe fitting. A water pump (82) is fixedly installed on one side of the cooling chamber (8). The liquid outlet of the water pump (82) is fixedly connected to the cooling chamber (8) through a pipe fitting. The liquid inlet of the water pump (82) is fixedly connected to a water pumping pipe (85). The air outlet of the coil (81) is fixedly connected to a through-installation chamber (12) and a ventilation pipe (83) is fixedly connected to one side of the charging pile body (2). The end of the ventilation pipe (83) connected to the charging pile body (2) is fixedly connected to a ventilation port (84) through a three-way valve.

9. A sunken new energy vehicle charging pile according to claim 1, characterized in that, The conveying pipe (9) includes an air inlet pipe (91) fixedly connected between the air inlet end of the fan (11) and a one-sided conductive connection chamber (10). The air outlet end of the fan (11) and the air inlet end of the dehumidifier (6) are fixedly connected by the pipe. A guide pipe (92) with one end passing through the water storage chamber (7) and fixedly connected to the sealing chamber (71) is fixedly connected by a three-way valve on the air inlet pipe (91). An exhaust pipe is fixedly connected between the side of the charging pile body (2) away from the drying chamber (5) and the other side conductive connection chamber (10). 96), the air duct (92) is fixedly connected to a connecting pipe (95) with one end fixedly connected to the exhaust pipe (96) by a three-way valve, and the air duct (92) and the exhaust pipe (96) are also fixedly connected by a three-way valve. The air duct (92) is fixedly connected to an exhaust pipe (93) by a three-way valve. The exhaust pipe (96) is fixedly connected to an exhaust port (97) by a three-way valve. The middle part of the exhaust pipe (96) is fixedly connected to a return pipe (94) with one end fixedly connected to the back of the installation chamber (12) by a three-way valve. The lower end of the connecting chamber (10) on the other side is fixedly connected to a first drain pipe (98) that is fixedly connected to the back of the water storage chamber (7). The side of the connecting chamber (10) on one side near the drying chamber (5) is fixedly connected to a second drain pipe (99) that penetrates and extends into the water storage chamber (7). The ends of the first drain pipe (98) and the second drain pipe (99) near the connecting chamber (10) are both fixedly connected to an auxiliary drain pipe (910). The upper ends of the auxiliary drain pipes (910) are fixedly connected to their corresponding connecting chambers (10).

10. A sunken new energy vehicle charging pile according to claim 1, characterized in that, A filter screen (103) is fixedly installed at the upper end of the connecting chamber (10), and a ventilation hole for the filter screen (103) to pass through is opened on the inner top wall of the pit (1). A partition (102) is fixedly connected to the middle of the inner bottom wall of each connecting chamber (10), and a pair of baffles (101) are fixedly connected to the inner wall of each connecting chamber (10), and the end of each pair of baffles (101) away from the inner wall of the connecting chamber (10) is located on both sides of the corresponding partition (102).

Images