Charging pile and snow removal system

Abstract

A charging pile and a snow removal system. The charging pile is applied to a mating device having a charging module. The charging pile comprises a power supply assembly, a charging mechanism, a telescopic mechanism and a fixing seat, wherein the charging mechanism comprises a charging head connected to the power supply assembly, the charging head being configured to come into electrical contact with the charging module; the telescopic mechanism is fixedly connected to the charging head and used for driving the charging head to come into contact with the charging module in a horizontal direction; and the fixing seat is used for fixing the telescopic mechanism.

Description

Charging piles and snow removal systems

[0001] Priority information

[0002] This application claims priority and benefits of the invention patent application filed with the State Intellectual Property Office of China on July 25, 2023, with patent application number 202310921113.4 and entitled Charging Pile and Snow Removal System, and the entire text of which is incorporated herein by reference. Technical Field

[0003] The present application relates to the field of robotics technology, and in particular to a charging pile and a snow-clearing system. Background Art

[0004] With the rapid development of robotics, robots for daily use have become ubiquitous in our daily lives. A snowplow robot, a type of snowplow, consists of a snowplow mechanism and a vehicle that tows the snowplow around the yard. The vehicle is typically wheeled or tracked. The snowplow mechanism primarily consists of a snowroller and a snowthrower. The snowroller gathers snow from the ground into a snowroller chamber, which is then thrown into a designated direction by the snowthrower.

[0005] In pursuit of low-carbon, environmentally friendly, energy-saving, and emission-reduction strategies, traditional fuel-powered snowplows are gradually being phased out. Current developments are primarily focused on battery-powered electric structures. However, charging existing snowplows primarily relies on manual labor, limiting their continued operational capacity. Without human intervention, the snowplows will become inoperable upon depleting their battery.

[0006] Summary of the Invention

[0007] The present application provides a charging station for use with a peer device equipped with a charging module. The charging station includes a power supply assembly, a charging mechanism, a retractable mechanism, and a fixed base. The charging mechanism includes a charging head connected to the power supply assembly, which is configured to electrically contact the charging module. The retractable mechanism is fixedly connected to the charging head and is configured to drive the charging head horizontally into contact with the charging module. The fixed base is configured to secure the retractable mechanism.

[0008] Another embodiment of the present application proposes a snow-clearing system, which includes a charging pile and a snow-clearing robot. The charging pile is applied to a counterpart device with a charging module. The charging pile includes a power supply assembly. The charging pile also includes a charging mechanism, a telescopic mechanism, and a fixed seat. The charging mechanism includes a charging head connected to the power supply assembly, and the charging head is used to electrically contact the charging module. The telescopic mechanism is fixedly connected to the charging head and is used to drive the charging head to contact the charging module in a horizontal direction. The fixed seat is used to fix the telescopic mechanism. A charging module is provided on the side of the snow-clearing robot. The charging module includes a pole piece. The charging pile is electrically in contact with the pole piece through the charging head to achieve docking between the charging pile and the charging module. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0010] FIG1 is a schematic diagram of the overall structure of a charging pile in a non-charging state provided in an embodiment of the present application;

[0011] FIG2 is a schematic diagram of the internal structure of a charging pile in a charging state according to an embodiment of the present application;

[0012] Figure 3 is an enlarged view of point A in Figure 2;

[0013] FIG4 is an assembly diagram of a charging pile provided in an embodiment of the present application.

[0014] Figure numbers and corresponding meanings: Charging pile 100; charging head 1; substrate 10; probe 11; needle head 111; needle tail 112; reset device 12; spring 121; through hole 13; pole piece 2; telescopic mechanism 3; telescopic frame 30; first telescopic unit 31; first telescopic rod 311; second telescopic rod 312; first cross bar 321; second cross bar 322; push rod 33; first pulley 34; second telescopic unit 35; third telescopic rod 351; fourth telescopic rod 352; second pulley 36; third telescopic unit 37; fixed seat 4; cavity 40; first wheel groove 41; second wheel groove 42; window 43; cover 44. DETAILED DESCRIPTION

[0015] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0017] The present application provides a snow-clearing system, as shown in Figures 1-4 . The snow-clearing system includes a snow-clearing robot (not shown) and a charging station 100 for charging the snow-clearing robot. The snow-clearing robot includes a snow-clearing device and a vehicle body for towing the snow-clearing device. A charging module (not shown) is provided on the side or rear of the vehicle body. A battery is provided inside the snow-clearing robot. The charging module includes a pole piece 2 electrically connected to the battery.

[0018] In some embodiments, the charging pile 100 includes a charging mechanism adapted to the charging module. The charging mechanism is provided with a charging head 1 , and the charging pile 100 is connected to the charging module by electrical contact between the charging head 1 and the electrode 2 .

[0019] The charging pile 100 also includes a telescopic mechanism 3 and a fixed base 4 for mounting the telescopic mechanism 3. The telescopic mechanism 3 is fixedly connected to the charging head 1. In the charging state, the telescopic mechanism 3 drives the charging head 1 to extend outward from the fixed base 4, thereby achieving electrical contact with the electrode 2. In the non-charging state, the telescopic mechanism 3 drives the charging head 1 to retract into the fixed base 4.

[0020] In some embodiments, a positioning device is further provided within the mounting base 4. This positioning device is coupled to the snow-clearing robot and provides the coordinates of the snow-clearing robot's parking position when charging. It also controls the snow-clearing robot's posture and position to fine-tune when docked with the charging station 100. The positioning device is state-of-the-art and will not be described in detail here.

[0021] The charging pile 100 provided in the embodiment of the present application guides the snow-clearing robot to the charging position through a positioning device, and drives the charging head 1 to perform telescopic movement through the telescopic mechanism 3 to complete the electrical contact between the charging pile 100 and the charging module. When the charging head 1 is docked with the charging module, the snow-clearing robot automatically enters the charging mode. After charging is completed, the telescopic mechanism 3 drives the charging head 1 to retract to the fixed seat 4, thereby completing the automatic charging of the snow-clearing robot. Automatic switching between the charging state and the working state can be achieved without human intervention, thereby realizing intelligent management of the entire process.

[0022] When the snow-clearing robot is docked with the charging station 100, as the snow-clearing robot approaches the charging station 100, the pressure between the needle 111 and the electrode 2 gradually increases. This requires very high positioning accuracy between the snow-clearing robot and the charging station 100. If the distance between the two is too close, the probe 11 and the electrode 2 will be excessively squeezed and damaged. If the distance is slightly greater, the probe 11 and the electrode 2 will not contact each other and charging will not be possible.

[0023] To address this issue, as shown in Figures 2 and 3, the charging head 1 includes a substrate 10, a probe 11 disposed on the substrate 10, and a reset device 12 located between the probe 11 and the substrate 10. Exemplarily, the probe 11 is a cylindrical conductor that is movably connected to the substrate 10 in a direction perpendicular to the substrate 10. The probe 11 includes a needle head 111 and a needle tail 112. The needle head 111 extends to the front side of the substrate 10 (the side facing away from the fixing base 4), and the needle tail 112 is located on the back side of the substrate 10. The probe 11 can move within a limited range relative to the surface of the substrate 10 in a direction perpendicular to the surface.

[0024] In some embodiments, the reset device 12 is disposed between the needle 111 and the substrate 10. When the needle 111 retracts toward the back of the substrate 10 under pressure, the reset device 12 generates a restoring force to resist the pressure. When the pressure is eliminated, under the action of the reset device 12, the needle 111 rebounds toward the front in a direction perpendicular to the substrate 10 and resets.

[0025] In some embodiments, the restoring device 12 is a spring 121 disposed between the needle 111 and the substrate 10 . The spring 121 always provides a restoring force to cause the needle 111 to bounce toward the front of the substrate 10 during the movement of the probe 11 .

[0026] Due to the movable connection between the needle 111 and the substrate 10, the needle 111 retracts to a certain extent under the pressure of the electrode 2, so that the rigid contact between the probe 11 and the electrode 2 is changed to elastic contact, which plays a buffering role, avoids damage to the equipment during docking, and reduces the requirements for positioning accuracy.

[0027] In addition, with the presence of the reset device 12, the probe 11 always maintains a restoring force to pop out from the front of the substrate 10, so that the needle 111 and the electrode 2 always maintain close contact, avoiding poor contact and resulting in charging interruption.

[0028] As shown in Figures 2 to 4, the charging mechanism includes two probes 11, and two through holes 13 are correspondingly provided on the surface of the substrate 10. The inner diameter of the through hole 13 is larger than the diameter of the needle tail 112, but smaller than the diameter of the needle head 111. The through hole 13 can allow the bottom of the probe 11 to pass through, so that the needle tail 112 can pass through the through hole 13, but the needle head 111 cannot pass through the through hole 13.

[0029] In some embodiments, a certain gap exists between the probe 11 and the through-hole 13, allowing the probe 11 to tilt at a certain angle relative to the substrate 10. This creates a conical space around the through-hole 13, allowing the needle 111 to move within a circular range parallel to the substrate 10. A spring 121 is sleeved onto the probe 11, with one end of the spring 121 abutting the needle 111 and the other end abutting the front surface of the substrate 10. The needle tail 112 is provided with a stopper to prevent the needle tail 112 from falling out of the through-hole 13 under the action of the spring 121.

[0030] In some embodiments, the limiting member is a limiting nut. In other embodiments of the present application, the limiting member may also be a limiting structure such as a retaining spring or a retaining pin.

[0031] By leaving a certain gap between the probe 11 and the inner diameter of the through hole, the needle 111 can move arbitrarily within a circular range, thereby expanding the range that the needle 111 can cover, so that the electrode 2 and the probe 11 can achieve electrical contact even when they are not facing each other, reducing the requirements for positioning accuracy and improving the stability and reliability of the equipment's operation.

[0032] In order to further improve the convenience of connecting the needle 111 with the electrode 2, in some embodiments, the area of ​​the electrode 2 is larger than that of the needle 11. In this way, as long as the needle 111 and the electrode 2 are partially in contact, the electrical connection between the two can be achieved.

[0033] As shown in Figures 2 to 4, the telescopic mechanism 3 includes a telescopic frame 30 fixed to the side wall of the fixed base 4, and a power device for driving the telescopic frame 30 to extend and retract. The telescopic frame 30 is a scissor-type telescopic structure that extends and retracts in the horizontal direction.

[0034] Exemplarily, the telescopic frame 30 includes a first telescopic unit 31 connected to the fixing base 4, a second telescopic unit 35 fixedly connected to the charging head 1, and a plurality of third telescopic units 37 connected between the first telescopic unit 31 and the second telescopic unit 35. The first telescopic unit 31 includes two first telescopic rods 311 parallel to each other, and second telescopic rods 312 intersecting and hingedly connected to the two first telescopic rods 311.

[0035] A first crossbar 321 is connected between the two first telescopic rods 311, and a second crossbar 322 is provided between the two second telescopic rods 312. The power device is a push rod 33, the output end of which is hinged to the first crossbar 321, and the fixed end of which is hinged to the second crossbar 322. The push rod 33 can be a hydraulic push rod, a pneumatic push rod, or an electric push rod. A first pulley 34 is provided at the end of the first telescopic rod 311, which can slide along the side of the fixed base 4. The bottom of the fixed base 4 has a first wheel groove 41 that is compatible with the first pulley 34.

[0036] Correspondingly, the second telescopic unit 35 includes two parallel third telescopic rods 351 and a fourth telescopic rod 352 that intersects and is hingedly connected to the two third telescopic rods 351. The ends of the third telescopic rods 351 are provided with second pulleys 36 that can slide along the side of the fixed base 4. The bottom of the fixed base 4 is provided with a second wheel groove 42 that is compatible with the second pulley 36.

[0037] As shown in Figures 2 and 4, a cavity 40 for accommodating the charging head 1 and the telescopic mechanism 3 is provided in the fixing base 4, and the second telescopic rod 312 is arranged on a side wall of the cavity 40 of the fixing base 4. A window 43 is provided on the other side wall of the cavity 40 opposite to the side wall. The charging head 1 and the telescopic frame 30 can enter and exit the cavity 40 through the window 43 to realize the extension and retraction of the charging head 1.

[0038] In the non-charging state, the charging head 1 is retracted into the cavity 40 under the drive of the telescopic frame 30, so as to prevent the charging head 1 from being exposed to the external environment and causing dirt and corrosion.

[0039] In some embodiments, the fixing base 4 is further provided with a cover 44, which can be movably connected to the window 43. In the non-charging state, the cover 43 closes the window 43, thereby preventing external snow from entering the fixing base 4 and causing the charging head 1 and the telescopic frame 30 to freeze or be blocked by snow.

[0040] The charging pile 100 and snow-clearing system provided in the embodiment of the present application drive the charging head 1 to move through the telescopic machine 3, so that the charging head 1 automatically contacts the charging module, thereby realizing automatic charging of the snow-clearing robot; the probe 11 can be inclined at a certain angle in the through hole 13, increasing the degree of freedom of the probe 11, reducing the positioning accuracy required to complete the docking of the probe 11 with the pole piece 2, and improving the charging efficiency; the charging mechanism and the telescopic mechanism 3 can be stored in the fixed seat 4 to prevent the equipment from being exposed to the external environment, causing corrosion and pollution of the equipment, thereby extending the service life of the product.

[0041] To further illustrate the inventive spirit of the present application, some embodiments of the present application are described below with examples.

[0042] In some embodiments, a charging station 100 is used for a peer device with a charging module. The charging station 100 includes a power supply assembly, a charging mechanism, a telescopic mechanism 3, and a fixing base 4. The charging mechanism includes a charging head 1 connected to the power supply assembly, and the charging head 1 is configured to electrically contact the charging module. The telescopic mechanism 3 is fixedly connected to the charging head 1 and is configured to drive the charging head 1 horizontally into contact with the charging module. The fixing base 4 is configured to secure the telescopic mechanism 3.

[0043] The charging pile 100 drives the charging head 1 to perform telescopic movement through the telescopic mechanism to complete electrical contact with the charging module, thereby realizing automatic charging of the snow-clearing robot.

[0044] In some embodiments, the charging head 1 includes a substrate 10 and a probe 11 arranged on the substrate 10. The probe 11 is a columnar conductor. The probe 11 is movably connected to the substrate 10. The spring needle includes a needle head 111 and a needle tail 112. The charging head 1 is also provided with a reset device 12 for keeping the needle head 111 popped up in a direction perpendicular to the substrate 10.

[0045] In this way, the reset device 12 keeps the needle 111 of the probe 11 always bounced in a direction perpendicular to the substrate 10. When the probe 11 contacts the charging module, the probe 11 and the electrode 2 of the charging module are kept in close contact to ensure good electrical contact between the two.

[0046] In some embodiments, the resetting device 12 includes a spring 121 disposed between the needle 111 and the base plate 10 .

[0047] The spring 121 structure is used as the reset device 12, which has a simple structure, low cost, stable structure and low failure rate.

[0048] In some embodiments, the spring 121 is sleeved on the probe 11, and the surface of the substrate 10 is provided with a through hole 13 for the bottom of the probe 11 to pass through. The diameter of the needle 111 is larger than the inner diameter of the through hole 13. One end of the spring 121 abuts against the needle 111, and the other end abuts against the substrate 10. The needle tail 112 is provided with a limiter to prevent it from escaping from the through hole 13.

[0049] In this way, the spring 121 is set between the needle 111 and the substrate 10. When the needle 111 is subjected to pressure, the probe 11 retracts in the through hole 13. Under the action of the spring 121, the probe 11 always maintains the rebound force during the retraction process, so that the needle 111 and the charging module are always tightly fitted and maintain good contact.

[0050] In some embodiments, the limiting member is a limiting nut, a retaining spring, or a retaining pin.

[0051] In some embodiments, the inner diameter of the through hole 13 is larger than the diameter of the probe 11 , so that the probe 11 can be tilted at a certain angle in the through hole 13 .

[0052] The inner diameter of the through hole 13 is larger than the diameter of the probe 11. In this way, when the probe 11 contacts the charging module, under the action of friction, the probe 11 will tilt at a certain angle. Even if there is a slight deviation in the position of the charging module and the probe 11, the electrical connection between the two can be achieved through the tilt of the probe 11, thereby reducing the positioning accuracy requirements and improving the charging efficiency.

[0053] In some embodiments, there is a gap between the probe 11 and the through hole 13 .

[0054] By leaving a certain gap between the probe 11 and the inner diameter of the through hole 13, the needle 111 can move arbitrarily within a circular range, thereby expanding the range that the needle 111 can cover, so that the electrode 2 and the probe 11 can achieve electrical contact even when they are not facing each other, reducing the requirements for positioning accuracy and improving the stability and reliability of the equipment's operation.

[0055] In some embodiments, the fixing seat 4 is provided with a cavity 40 for accommodating the telescopic mechanism 3 , and a window 43 communicating with the cavity 40 is provided on the side of the fixing seat 4 , and the charging head 1 can be extended or retracted into the window 43 under the drive of the telescopic mechanism 3 .

[0056] With this structure, when not charging, the charging head 1 and the telescopic mechanism 3 are stored in the fixing seat 4, avoiding exposure to the external environment and being contaminated and corroded, thereby reducing the failure rate of the equipment and extending the service life of the equipment.

[0057] In some embodiments, the telescopic mechanism 3 includes a telescopic frame 30 and a power device for driving the telescopic frame 30 to move.

[0058] In some embodiments, the telescopic frame 30 is a scissor-type structure, and the power device is a push rod 33 fixedly connected to the telescopic frame 30 .

[0059] In some embodiments, the telescopic frame 30 includes a first telescopic unit 31, a second telescopic unit 35 and at least one third telescopic unit 37, the first telescopic unit 31 is connected to the fixing seat 4, the second telescopic unit 35 is connected to the charging head 1, and the third telescopic unit 37 is connected between the first telescopic unit 31 and the second telescopic unit 35.

[0060] In some embodiments, the first telescopic unit 31 includes two first telescopic rods 311 parallel to each other, and a second telescopic rod 312 that crosses and is hinged to the two first telescopic rods 311 respectively. The end of the first telescopic rod 311 is provided with a first pulley 34 that slides along the side of the fixed seat 4, and the bottom of the fixed seat 4 is provided with a first wheel groove 41 that is adapted to the first pulley 34.

[0061] In some embodiments, the second telescopic unit 35 includes two third telescopic rods 351 parallel to each other, and a fourth telescopic rod 352 that crosses and is hinged to the two third telescopic rods 351 respectively. The end of the third telescopic rod 351 is provided with a second pulley 36 that slides along the side of the fixed seat 4, and the bottom of the fixed seat 4 is provided with a second wheel groove 42 that is compatible with the second pulley 36.

[0062] In some embodiments, the push rod 33 is a hydraulic push rod, a pneumatic push rod, or an electric push rod.

[0063] In some embodiments, the fixing seat 4 further includes a cover 44 for closing the window 43 , and the cover 44 is movably connected to the window 43 .

[0064] The cover 44 can seal the fixing seat 4 in the non-charging state to prevent snow from accumulating in the fixing seat 4 and protect the charging mechanism and the telescopic mechanism 3.

[0065] In some embodiments, a snow-clearing system includes a charging station 100 and a snow-clearing robot provided in any of the above embodiments. A charging module is provided on the side of the snow-clearing robot. The charging module includes a pole piece 2. The charging station 100 is electrically connected to the pole piece 2 via a charging head 1 to achieve docking between the charging station 100 and the charging module.

[0066] The telescopic mechanism 3 drives the charging head 1 to perform telescopic movement to complete the electrical contact between the charging pile 100 and the charging module. When the charging head 1 is docked with the charging module, the snow-clearing robot automatically enters the charging mode. After charging is completed, the telescopic mechanism 3 drives the charging head 1 to retract to the fixed seat 4, thereby completing the automatic charging of the snow-clearing robot. Automatic switching between the charging state and the working state can be achieved without human intervention, realizing intelligent management of the entire process.

[0067] In some embodiments, the charging head 1 includes a probe 11 , the probe 11 includes a needle head 111 and a needle tail 112 , and the area of ​​the pole piece 2 is larger than the needle head 111 .

[0068] In this way, as long as the needle 111 is in partial contact with the electrode 2, electrical connection between the two can be achieved.

[0069] In this disclosure, unless otherwise specified or limited, terms such as "mounted" and "connected" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, integral connections, or transmission connections; they can be direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this disclosure based on the specific circumstances.

[0070] In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as a specific reference or special structure. The description of the term "some embodiments" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in the embodiments or examples of the present invention. In the present invention, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in an appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present invention and the features of the different embodiments or examples, unless they are contradictory.

[0071] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention, and should all be included in the scope of protection of the present invention.

Claims

1. A charging pile, characterized in that: Applied to a peer device with a charging module, the charging pile includes a power supply component, and the charging pile also includes: A charging mechanism, comprising a charging head connected to the power supply assembly, the charging head being used for electrically contacting the charging module; A telescopic mechanism, fixedly connected to the charging head, and used to drive the charging head to contact the charging module in a horizontal direction; A fixing seat is used to fix the telescopic mechanism.

2. The charging pile according to claim 1, characterized in that: The charging head includes a substrate and a probe arranged on the substrate. The probe is a columnar conductor and is movably connected to the substrate. The probe includes a needle head and a needle tail. The charging head is also provided with a reset device for keeping the needle head popped up in a direction perpendicular to the substrate.

3. The charging pile according to claim 2, characterized in that: The resetting device comprises a spring arranged between the needle head and the substrate.

4. The charging pile according to claim 3, characterized in that: The spring is sleeved on the probe, a through hole is provided on the surface of the substrate for the bottom of the probe to pass through, the diameter of the needle head is larger than the inner diameter of the through hole, one end of the spring abuts against the needle head, and the other end abuts against the substrate, and the needle tail is provided with a limiter to prevent it from escaping from the through hole.

5. The charging pile according to claim 4, characterized in that: The limiting member is a limiting nut, a retaining spring or a retaining pin.

6. The charging pile according to claim 4 or 5, characterized in that: The inner diameter of the through hole is greater than the diameter of the probe, so that the probe can be inclined at a certain angle in the through hole.

7. The charging pile according to claim 4 or 5, characterized in that: There is a gap between the probe and the through hole.

8. The charging pile according to any one of claims 1 to 7, characterized in that: The fixing seat is provided with a cavity for accommodating the telescopic mechanism, and a window communicating with the cavity is provided on a side of the fixing seat, and the charging head can extend out or retract into the window driven by the telescopic mechanism.

9. The charging pile according to any one of claims 1 to 8, characterized in that: The telescopic mechanism comprises a telescopic frame and a power device for driving the telescopic frame to move.

10. The charging pile according to claim 9, characterized in that: The telescopic frame is a scissor-type telescopic structure, and the power device is a push rod fixedly connected to the telescopic frame.

11. The charging pile according to claim 10, characterized in that: The push rod is a hydraulic push rod, a pneumatic push rod or an electric push rod.

12. The charging pile according to claim 9, characterized in that: The telescopic frame includes a first telescopic unit, a second telescopic unit and a plurality of third telescopic units, the first telescopic unit is connected to the fixing seat, the second telescopic unit is connected to the charging head, and the third telescopic unit is connected between the first telescopic unit and the second telescopic unit.

13. The charging pile according to claim 12, characterized in that: The first telescopic unit includes two first telescopic rods parallel to each other, and second telescopic rods respectively crossing and hinged with the two first telescopic rods, the end of the first telescopic rod is provided with a first pulley sliding along the side of the fixed seat, and the bottom of the fixed seat is provided with a first wheel groove adapted to the first pulley.

14. The charging pile according to claim 12, characterized in that: The second telescopic unit includes two third telescopic rods parallel to each other, and a fourth telescopic rod respectively crossing and hinged with the two third telescopic rods, the end of the third telescopic rod is provided with a second pulley sliding along the side of the fixed seat, and the bottom of the fixed seat is provided with a second wheel groove adapted to the second pulley.

15. The charging pile according to claim 8, characterized in that: The fixing seat comprises a cover for closing the window, and the cover is movably connected to the window.

16. A snow removal system, characterized in that: include: The charging pile according to any one of claims 1 to 15; A snow-clearing robot, wherein the charging module is provided on the side of the snow-clearing robot, wherein the charging module comprises a pole piece, and the charging pile is in electrical contact with the pole piece through the charging head to achieve docking between the charging pile and the charging module.

17. The snow removal system according to claim 16, characterized in that: The charging head includes a probe, and the probe includes a needle head and a needle tail. The area of ​​the pole piece is larger than that of the needle head.

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