Charging pile with self-protection function

Abstract

The invention belongs to the technical field of new energy charging piles, and particularly discloses a charging pile with a self-protection function, which is mounted between a charging pile body and a fixed seat and comprises an upper support and a lower support, the upper wall of the upper support is fixed on the charging pile body, and the lower support is fixed on the fixed seat. A self-adjusting buffer mechanism is arranged between the upper support and the lower support, the self-adjusting buffer mechanism comprises a damping connecting body, a self-adaptive buffer assembly, a self-weight damping transmission assembly and a self-weight reverse damping assembly, the damping connecting body is arranged between the upper support and the lower support, and the self-adaptive buffer assembly is arranged in the damping connecting body. The linear motion of the connecting sliding block in the upper sliding groove and the linear motion of the sliding aluminum block in the lower sliding groove are converted into rotation of the upper rotating disc and the lower rotating disc, so that the damping effect in the collision direction is ensured, triple damping of the charging pile is achieved through eddy current damping, the spring and the self weight, and the risk of damage to the charging pile is reduced to the maximum extent.

Description

Technical Field

[0001] The present invention belongs to the technical field of new energy charging piles, and specifically refers to a charging pile with a self-protection function. Background Art

[0002] New energy vehicles, also known as alternative fuel vehicles, need to be charged by charging piles, which can be fixed on the ground or wall and can charge various types of electric vehicles according to different voltage levels. The input end of the charging pile is directly connected to the AC power grid, and the output end is equipped with a charging plug for charging electric vehicles.

[0003] The existing charging pile supports have small buffering capacity, small energy absorption, and single shock absorption effect. When a collision occurs, the collision may occur in any direction. The existing shock-absorbing supports cannot provide targeted shock absorption according to the direction of the collision, and the shock absorption effect is poor.

[0004] Therefore, a charging pile with a self-protection function is needed to solve the above problems. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a charging pile with a self-protection function, which converts the linear motion of the connecting slider in the upper sliding groove and the sliding aluminum block in the lower sliding groove into the rotation of the upper rotating disk and the lower rotating disk, thereby ensuring the shock absorption effect in the collision direction, and utilizing eddy current damping, springs and deadweight to achieve triple shock absorption of the charging pile, thereby minimizing the risk of damage to the charging pile.

[0006] The technical solution adopted by the present invention is as follows: The present invention proposes a charging pile with a self-protection function, which is installed between a charging pile body and a fixed seat, and comprises an upper support and a lower support. The upper wall of the upper support is fixed on the charging pile body, and the lower support is fixed on the fixed seat. A self-adjusting buffer mechanism is arranged between the upper support and the lower support. The self-adjusting buffer mechanism comprises a shock-absorbing connector, an adaptive buffer component, a self-weight shock-absorbing transmission component and a self-weight reverse shock-absorbing component. The shock-absorbing connector is arranged between the upper support and the lower support, and the adaptive buffer component is arranged in the shock-absorbing connector. The self-weight shock-absorbing transmission component is arranged on the outer wall of the lower support around the axis line of the lower support, and the self-weight reverse shock-absorbing component is arranged in an array on the upper array of the self-weight shock-absorbing transmission component, and the self-weight reverse shock-absorbing component acts on the shock-absorbing connector.

[0007] Furthermore, the shock-absorbing connecting body includes an upper connecting body, a lower connecting body and a limiting column, the lower connecting body is arranged on the lower support, the lower connecting body is a cylindrical structure, the middle inner wall of the lower connecting body is provided with a lower annular support plate, the upper wall edge of the lower connecting body is provided with lifting holes around the axis array, the limiting column is arranged in the lifting hole for sliding up and down, the upper connecting body is a cylindrical structure, the lower end inner wall of the upper connecting body is provided with an upper annular support plate, and the lower wall of the upper connecting body is arranged at the upper end of the limiting column.

[0008] Furthermore, the adaptive buffer assembly includes an upper rotating disk, an upper rolling wheel, a lower rotating disk, a lower rolling wheel, a main hydraulic cylinder, a main hydraulic push rod, a connecting slider, a buffer spring, a sliding aluminum block and a fixed magnetic strip. The upper rotating disk is arranged on the upper wall of the upper annular support plate in the upper connecting body, the outer wall array of the upper rotating disk is provided with an upper rolling wheel, and the upper rolling wheel rolls on the inner wall of the upper connecting body. The lower rotating disk is arranged on the upper wall of the lower annular support plate in the lower connecting body, the outer wall array of the lower rotating disk is provided with a lower rolling wheel, and the lower rolling wheel rolls on the inner wall of the lower connecting body. The upper rotating disk is provided with an upper sliding groove along the diameter direction, and the connecting slider is slidably arranged on In the upper sliding groove, the upper end of the connecting slide block is fixedly connected to the lower wall of the upper support, the buffer spring is symmetrically arranged on both sides of the connecting slide block, one end of the buffer spring is arranged on the inner end surface of the upper sliding groove, and the other end of the buffer spring is arranged on the connecting slide block, the upper end of the main hydraulic push rod is arranged at the center of the lower wall of the connecting slide block, the lower rotating disk is penetrated with a lower sliding groove along the diameter direction, the sliding aluminum block is slidably arranged in the lower sliding groove, and the inner side wall of the lower sliding groove is provided with a fixed magnetic strip, the main hydraulic cylinder is a cylindrical structure with an open upper end, the lower end of the main hydraulic cylinder is penetrated and arranged on the sliding aluminum block, and the lower end of the main hydraulic push rod is slidably arranged in the main hydraulic cylinder.

[0009] Furthermore, the self-weight shock-absorbing transmission assembly includes a fixed rib, a fixed platform, a support tube, a lifting sleeve, a connecting oil pipe and a connecting head. The fixed rib is arranged on the outer wall of the lower support in an axial array around the lower support, the fixed platform is arranged at the end of the fixed rib, the lower end of the support tube is arranged at the upper end of the fixed platform, the lifting sleeve is sleeved on the support tube, the connecting head is arranged at the lower end of the main hydraulic cylinder, the connecting head is communicated with the main hydraulic cylinder, one end of the connecting oil pipe is connected to the lower end of the support tube, and the other end of the connecting oil pipe is connected to the connecting head.

[0010] Furthermore, the self-weight type reverse shock absorbing assembly includes a lower pressure plate, a transmission rack, a transmission gear, a gear frame, a gear shaft, a swing arm and a pressure wheel. A lower slot is provided on the lower side of the outer wall of the lower connecting body. The transmission rack is provided on the side wall of the lifting sleeve. The lower pressure plate is provided at the lower end of the transmission rack. The lower pressure plate is provided in the lower slot. The gear frame is provided on the fixed rib plate. The transmission gear is provided on the gear frame through the rotation of the gear shaft. Both ends of the gear shaft pass through the gear frame. The transmission rack is provided on the outer side of the transmission gear. The transmission rack is meshed with the transmission gear. The swing arm is provided at the end of the gear shaft. The pressure wheel is provided at the end of the swing arm.

[0011] Furthermore, the two inner side walls of the lower sliding groove are symmetrically provided with limiting sliding grooves, and the two side walls of the sliding aluminum block are symmetrically provided with limiting sliding bars, and the limiting sliding bars are slidably arranged in the limiting sliding grooves.

[0012] Furthermore, the connecting oil pipe passes through the lower slot.

[0013] Furthermore, the upper sliding groove and the lower sliding groove are arranged correspondingly.

[0014] The beneficial effects achieved by the present invention using the above structure are as follows: 1. The charging pile body drives the upper support and the connecting slider to move. The connecting slider slides in the upper sliding groove, thereby driving the upper rotating disk to rotate, so that the upper sliding groove is consistent with the collision direction. The connecting slider drives the main hydraulic push rod and the main hydraulic cylinder to move. The main hydraulic cylinder moves with the sliding aluminum block. The sliding aluminum block moves between the fixed magnetic strips. Similarly, the sliding aluminum block drives the lower rotating disk to rotate, so that the lower sliding groove is consistent with the collision direction, thereby ensuring the shock absorption effect in the collision direction; 2. When the sliding aluminum block moves between the fixed magnetic strips, an eddy current is formed in the sliding aluminum block. Under the action of the magnetic field of the fixed magnetic strips, an Ampere force is generated to hinder the movement of the sliding aluminum block, thereby playing a role of buffering and shock absorption in the lateral direction. The buffer springs connecting the two sides of the slider also play a role of buffering and shock absorption; 3. When the collision drives the charging pile body to move, the charging pile body drives the upper support to move, and the upper support pushes the clamping wheel in the corresponding direction, thereby driving the swing arm to rotate counterclockwise. The swing of the swing arm must overcome the force of the charging pile body's own weight, thereby automatically realizing the buffering and shock-absorbing effect of the charging pile body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the installation of a charging pile with a self-protection function proposed by the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of a charging pile with a self-protection function proposed by the present invention; Figure 3 It is a three-dimensional structural schematic diagram of a self-weight shock-absorbing transmission component and a self-weight reverse shock-absorbing component; Figure 4 It is a schematic diagram of the front three-dimensional structure of the adaptive buffer component and the shock-absorbing connector; Figure 5 It is a schematic diagram of the bottom three-dimensional structure of the adaptive buffer component and the shock-absorbing connector; Figure 6 is a schematic diagram of the three-dimensional structure of the shock-absorbing connector; Figure 7 Schematic diagram of the three-dimensional structure of the upper rotating disk; Figure 8 It is a schematic diagram of the three-dimensional structure of the lower rotating disk; Fig. 9 for Figure 8 Enlarged view of part A; Fig.10 for Figure 2 Enlarged view of part B.

[0016] Among them, 1. Charging pile body, 2. Fixed seat, 3. Upper support, 4. Lower support, 5. Limit slide, 6. Limit slide, 7. Self-adjusting buffer mechanism, 8. Shock-absorbing connector, 9. Adaptive buffer assembly, 10. Self-weight shock-absorbing transmission assembly, 11. Self-weight reverse shock-absorbing assembly, 12. Upper connector, 13. Lower connector, 14. Limit column, 15. Lower annular support plate, 16. Lifting hole, 17. Upper annular support plate, 18. Upper rotating disk, 19. Upper rolling wheel, 20. Lower rotating disk, 21. Rolling wheel, 22. Main hydraulic cylinder, 23. Main hydraulic push rod, 24. Connecting slider, 25. Buffer spring, 26. Sliding aluminum block, 27. Fixed magnetic strip, 28. Lower pressure plate, 29. Lower slot, 30. Upper sliding slot, 31. Lower sliding slot, 32. Fixed rib plate, 33. Fixed platform, 34. Support tube, 35. Lifting sleeve, 36. Connecting oil pipe, 37. Connecting head, 38. Transmission rack, 39. Transmission gear, 40. Gear rack, 41. Gear shaft, 42. Swing arm, 43. Clamping wheel.

[0017] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0018] 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 described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0020] like Figure 1 , Figure 2 As shown, the present invention proposes a charging pile with a self-protection function, which is installed between a charging pile body 1 and a fixed seat 2, and includes an upper support 3 and a lower support 4. The upper wall of the upper support 3 is fixed on the charging pile body 1, and the lower support 4 is fixed on the fixed seat 2. A self-adjusting buffer mechanism 7 is provided between the upper support 3 and the lower support 4. The self-adjusting buffer mechanism 7 includes a shock-absorbing connector 8, an adaptive buffer component 9, a self-weight shock-absorbing transmission component 10 and a self-weight reverse shock-absorbing component 11. The shock-absorbing connector 8 is provided between the upper support 3 and the lower support 4, and the adaptive buffer component 9 is provided in the shock-absorbing connector 8. The self-weight shock-absorbing transmission component 10 is arranged on the outer wall of the lower support 4 around the axis of the lower support 4. A self-weight reverse shock-absorbing component 11 is arranged in an array on the self-weight shock-absorbing transmission component 10, and the self-weight reverse shock-absorbing component 11 acts on the shock-absorbing connector 8.

[0021] like Figure 2 , Figure 4 , Figure 5 , Figure 6 As shown, the shock-absorbing connecting body 8 includes an upper connecting body 12, a lower connecting body 13 and a limiting column 14. The lower connecting body 13 is arranged on the lower support 4. The lower connecting body 13 is a cylindrical structure. The middle inner wall of the lower connecting body 13 is provided with a lower annular support plate 15. The upper wall edge of the lower connecting body 13 is provided with lifting holes 16 around the axis array. The limiting column 14 is slidable up and down in the lifting hole 16. The upper connecting body 12 is a cylindrical structure. The lower end inner wall of the upper connecting body 12 is provided with an upper annular support plate 17. The lower wall of the upper connecting body 12 is arranged at the upper end of the limiting column 14.

[0022] like Figure 2 , Figure 4 , Figure 6 , Figure 7 , Figure 8As shown, the adaptive buffer component 9 includes an upper rotating disk 18, an upper rolling wheel 19, a lower rotating disk 20, a lower rolling wheel 21, a main hydraulic cylinder 22, a main hydraulic push rod 23, a connecting slider 24, a buffer spring 25, a sliding aluminum block 26 and a fixed magnetic strip 27. The upper rotating disk 18 is arranged on the upper wall of the upper annular support plate 17 in the upper connecting body 12, and the outer wall array of the upper rotating disk 18 is provided with an upper rolling wheel 19, and the upper rolling wheel 19 rolls on the inner wall of the upper connecting body 12. The lower rotating disk 20 is arranged on the upper wall of the lower annular support plate 15 in the lower connecting body 13, and the outer wall array of the lower rotating disk 20 is provided with a lower rolling wheel 21, and the lower rolling wheel 21 rolls on the inner wall of the lower connecting body 13. The upper rotating disk 18 is penetrated by an upper sliding groove 30 along the diameter direction, and the connecting slider 24 slides The connecting slider 24 is rotatably arranged in the upper sliding groove 30, the upper end of the connecting slider 24 is rotatably connected to the lower wall of the upper support 3 through an axis, the buffer spring 25 is symmetrically arranged on both sides of the connecting slider 24, one end of the buffer spring 25 is arranged on the inner end surface of the upper sliding groove 30, and the other end of the buffer spring 25 is arranged on the connecting slider 24, the upper end of the main hydraulic push rod 23 is arranged at the center of the lower wall of the connecting slider 24, the lower rotating disk 20 is penetrated by a lower sliding groove 31 along the diameter direction, the sliding aluminum block 26 is slidably arranged in the lower sliding groove 31, and the inner side wall of the lower sliding groove 31 is provided with a fixed magnetic strip 27, the main hydraulic cylinder 22 is a cylindrical structure with an open upper end, the lower end of the main hydraulic cylinder 22 is penetrated by the sliding aluminum block 26, and the lower end of the main hydraulic push rod 23 is slidably arranged in the main hydraulic cylinder 22.

[0023] like Figure 2 , Figure 3 , Figure 5 As shown, the self-weight shock-absorbing transmission assembly 10 includes a fixed rib 32, a fixed platform 33, a support tube 34, a lifting sleeve 35, a connecting oil pipe 36 and a connecting head 37. The fixed rib 32 is arranged on the outer wall of the lower support 4 in an array around the axis of the lower support 4, the fixed platform 33 is arranged at the end of the fixed rib 32, the lower end of the support tube 34 is arranged at the upper end of the fixed platform 33, the lifting sleeve 35 is sleeved on the support tube 34, the connecting head 37 is arranged at the lower end of the main hydraulic cylinder 22, the connecting head 37 is connected to the main hydraulic cylinder 22, one end of the connecting oil pipe 36 is connected to the lower end of the support tube 34, and the other end of the connecting oil pipe 36 is connected to the connecting head 37.

[0024] like Figure 2 , Figure 3 , Fig.10As shown, the self-weight reverse shock absorbing assembly 11 includes a lower pressure plate 28, a transmission rack 38, a transmission gear 39, a gear frame 40, a gear shaft 41, a swing arm 42 and a clamping wheel 43. A lower slot 29 is provided on the lower side of the outer wall of the lower connecting body 13. The transmission rack 38 is arranged on the side wall of the lifting sleeve 35. The lower pressure plate 28 is arranged at the lower end of the transmission rack 38. The lower pressure plate 28 is arranged in the lower slot 29. The gear frame 40 is arranged on the fixed rib 32. The transmission gear 39 is rotatably arranged on the gear frame 40 through the gear shaft 41. Both ends of the gear shaft 41 pass through the gear frame 40. The transmission rack 38 is arranged on the outside of the transmission gear 39. The transmission rack 38 is meshed with the transmission gear 39. The swing arm 42 is arranged at the end of the gear shaft 41. The clamping wheel 43 is arranged at the end of the swing arm 42.

[0025] like Figure 8 , Fig. 9 As shown, the two inner side walls of the lower sliding groove 31 are symmetrically provided with limiting sliding grooves 5, and the two side walls of the sliding aluminum block 26 are symmetrically provided with limiting sliding bars 6, and the limiting sliding bars 6 are slidably arranged in the limiting sliding grooves 5.

[0026] like Figure 2 , Figure 4 , Figure 5 , Fig.10 As shown, the connecting oil pipe 36 passes through the lower slot 29 .

[0027] like Figure 4 As shown, the upper sliding groove 30 and the lower sliding groove 31 are arranged correspondingly.

[0028] When in use, the self-adjusting buffer mechanism 7 can be buried underground, and the fixing seat 2 plays the role of fixing the self-adjusting buffer mechanism 7. The lower support 4 is fixed on the fixing seat 2, and the charging pile body 1 is fixed on the upper support 3. When a collision in a certain direction occurs, the charging pile body 1 will move along this direction. At this time, there will be a relative movement between the charging pile body 1 and the fixing seat 2. The charging pile body 1 drives the upper support 3 to move, and the upper support 3 drives the connecting slider 24 to move. The connecting slider 24 slides in the upper sliding groove 30, thereby driving the upper rotating disk 18 to rotate, so that the upper sliding groove 30 is consistent with the collision direction, and the connecting slider 24 drives The main hydraulic push rod 23 and the main hydraulic cylinder 22 move, and the main hydraulic cylinder 22 moves with the sliding aluminum block 26. The sliding aluminum block 26 moves between the fixed magnetic strips 27. Similarly, the sliding aluminum block 26 drives the lower rotating disk 20 to rotate, so that the lower sliding groove 31 is consistent with the collision direction. When the sliding aluminum block 26 moves between the fixed magnetic strips 27, an eddy current is formed in the sliding aluminum block 26. Under the action of the magnetic field of the fixed magnetic strips 27, an Ampere force is generated to hinder the movement of the sliding aluminum block 26, thereby playing a role of buffering and shock absorption in the lateral direction. The buffer springs 25 connecting the two sides of the slider 24 also play a role of buffering and shock absorption. The charging pile body 1 acts on the upper support 3, pressing the upper support 3 downward, the upper support 3 presses the upper connector 12 downward, the upper connector 12 drives the limit column 14 to enter the lifting hole 16, the upper connector 12 presses the main hydraulic push rod 23 downward, the main hydraulic push rod 23 presses the hydraulic oil in the main hydraulic cylinder 22 downward, the hydraulic oil enters the support pipe 34 through the connecting oil pipe 36, and then the hydraulic oil enters the lifting sleeve 35, the lifting sleeve 35 is pushed upward, the lifting sleeve 35 drives the transmission rack 38 to move upward, the transmission rack 38 drives the lower pressure plate 28 to move upward, and the lower pressure plate 28 presses upward. The bottom wall of the lower slot 29 is tightened, and the transmission rack 38 drives the transmission gear 39 to rotate clockwise, and the transmission gear 39 drives the gear shaft 41 to move clockwise, and the gear shaft 41 drives the swing arm 42 to rotate clockwise, and the swing arm 42 drives the clamping wheel 43 to press on the outer wall of the upper support 3. When the collision drives the charging pile body 1 to move, the charging pile body 1 drives the upper support 3 to move, and the upper support 3 pushes the clamping wheel 43 in the corresponding direction, thereby driving the swing arm 42 to rotate counterclockwise. The swing of the swing arm 42 must overcome the force of the deadweight of the charging pile body 1, thereby automatically realizing the buffering and shock absorption effect of the charging pile body 1.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0030] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

[0031] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A charging pile with a self-protection function, installed between a charging pile body (1) and a fixing seat (2), characterized in that: The invention comprises an upper support (3) and a lower support (4), wherein the upper wall of the upper support (3) is fixed on the charging pile body (1), and the lower support (4) is fixed on the fixing seat (2). A self-adjusting buffer mechanism (7) is provided between the upper support (3) and the lower support (4), and the self-adjusting buffer mechanism (7) comprises a shock absorbing connector (8), an adaptive buffer component (9), a self-weight shock absorbing transmission component (10) and a self-weight reverse shock absorbing component (11). The shock absorbing connector (8) is provided between the upper support (3) and the lower support (4), the adaptive buffer component (9) is provided in the shock absorbing connector (8), the self-weight shock absorbing transmission component (10) is arranged in an array on the outer wall of the lower support (4) around the axis of the lower support (4), and a self-weight reverse shock absorbing component (11) is arranged in an array on the upper side of the self-weight shock absorbing transmission component (10), and the self-weight reverse shock absorbing component (11) acts on the shock absorbing connector (8).

2. A charging pile with self-protection function according to claim 1, characterized in that: The shock-absorbing connecting body (8) comprises an upper connecting body (12), a lower connecting body (13) and a limiting column (14); the lower connecting body (13) is arranged on the lower support (4); the lower connecting body (13) is a cylindrical structure; a lower annular supporting plate (15) is arranged on the inner wall of the middle part of the lower connecting body (13); a lifting hole (16) is arranged in an array around an axis at the edge of the upper wall of the lower connecting body (13); the limiting column (14) is arranged in the lifting hole (16) for upward and downward sliding; the upper connecting body (12) is a cylindrical structure; an upper annular supporting plate (17) is arranged on the inner wall of the lower end of the upper connecting body (12); and the lower wall of the upper connecting body (12) is arranged on the upper end of the limiting column (14).

3. A charging pile with self-protection function according to claim 2, characterized in that: The adaptive buffer component (9) comprises an upper rotating disk (18), an upper rolling wheel (19), a lower rotating disk (20), a lower rolling wheel (21), a main hydraulic cylinder (22), a main hydraulic push rod (23), a connecting slider (24), a buffer spring (25), a sliding aluminum block (26) and a fixed magnetic strip (27); the upper rotating disk (18) is arranged on the upper wall of an upper annular support plate (17) in an upper connecting body (12); an array of upper rolling wheels (19) are arranged on the outer wall of the upper rotating disk (18); the upper rolling wheels (19) roll on the inner wall of the upper connecting body (12); the lower rotating disk (20) is arranged on the upper wall of a lower annular support plate (15) in a lower connecting body (13); an array of lower rolling wheels (21) are arranged on the outer wall of the lower rotating disk (20); the lower rolling wheels (21) roll on the inner wall of the lower connecting body (13); an upper sliding groove (30) is penetrated through the upper rotating disk (18) along a diameter direction; the connecting slider (24) is slidably arranged in the upper sliding groove (30), the upper end of the connecting slide block (24) is rotatably connected to the lower wall of the upper support (3) through an axis, the buffer spring (25) is symmetrically arranged on both sides of the connecting slide block (24), one end of the buffer spring (25) is arranged on the inner end surface of the upper sliding groove (30), and the other end of the buffer spring (25) is arranged on the connecting slide block (24), and the upper end of the main hydraulic push rod (23) is arranged in the lower wall of the connecting slide block (24). At the center, the lower rotating disk (20) is provided with a lower sliding groove (31) penetrating along the diameter direction, the sliding aluminum block (26) is slidably arranged in the lower sliding groove (31), and the inner side wall of the lower sliding groove (31) is provided with a fixed magnetic strip (27), the main hydraulic cylinder (22) is a cylindrical structure with an open upper end, the lower end of the main hydraulic cylinder (22) is penetrated on the sliding aluminum block (26), and the lower end of the main hydraulic push rod (23) is slidably arranged in the main hydraulic cylinder (22).

4. The charging pile with self-protection function according to claim 3, characterized in that: The deadweight damping transmission assembly (10) comprises a fixed rib plate (32), a fixed platform (33), a support pipe (34), a lifting sleeve (35), a connecting oil pipe (36) and a connecting head (37); the fixed rib plate (32) is arranged on the outer wall of the lower support (4) in an array around the axis of the lower support (4); the fixed platform (33) is arranged at the end of the fixed rib plate (32); the lower end of the support pipe (34) is arranged at the upper end of the fixed platform (33); the lifting sleeve (35) is sleeved on the support pipe (34); the connecting head (37) is arranged at the lower end of the main hydraulic cylinder (22); the connecting head (37) is connected to the main hydraulic cylinder (22); one end of the connecting oil pipe (36) is connected to the lower end of the support pipe (34); and the other end of the connecting oil pipe (36) is connected to the connecting head (37).

5. The charging pile with self-protection function according to claim 4, characterized in that: The self-weight reverse shock absorbing assembly (11) comprises a transmission rack (38), a lower pressure plate (28), a transmission gear (39), a gear frame (40), a gear shaft (41), a swing arm (42) and a clamping wheel (43); a lower slot (29) is provided on the lower side of the outer wall of the lower connecting body (13); the transmission rack (38) is provided on the side wall of the lifting sleeve (35); the lower pressure plate (28) is provided at the lower end of the transmission rack (38); and the lower pressure plate (28) is provided in the lower slot (29). The gear frame (40) is arranged on the fixed rib plate (32), the transmission gear (39) is rotatably arranged on the gear frame (40) through a gear shaft (41), both ends of the gear shaft (41) pass through the gear frame (40), the transmission rack (38) is arranged on the outside of the transmission gear (39), the transmission rack (38) is meshed with the transmission gear (39), the swing arm (42) is arranged at the end of the gear shaft (41), and the clamping wheel (43) is arranged at the end of the swing arm (42).

6. The charging pile with self-protection function according to claim 5, characterized in that: The two inner side walls of the lower sliding groove (31) are symmetrically provided with limiting sliding grooves (5), and the two side walls of the sliding aluminum block (26) are symmetrically provided with limiting sliding bars (6), and the limiting sliding bars (6) are slidably arranged in the limiting sliding grooves (5).

7. The charging pile with self-protection function according to claim 6, characterized in that: The connecting oil pipe (36) passes through the lower slot (29).

8. The charging pile with self-protection function according to claim 7, characterized in that: The upper sliding groove (30) and the lower sliding groove (31) are arranged correspondingly.

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