Universal floating docking device for charging head of new energy automobile charging pile

Abstract

The invention relates to the technical field of charging piles, in particular to a universal floating docking device for a charging head of a new energy automobile charging pile, which comprises a mounting seat, a sliding plate is slidably mounted on the surface of the mounting seat, reset springs are arranged at two ends of the sliding plate, and a movable plate is arranged on one side of the sliding plate; a hollow shaft is movably connected to an inner cavity of the guide cylinder in a penetrating mode. A charging head is arranged on the outer side of the hollow seat. A threaded cylinder is fixed to one side of the surface of the hollow ball, and the charging head is fixedly connected with the hollow ball in a threaded mode. The beneficial effects are that the inner cavity of the hollow seat is movably provided with the hollow ball, the outer side of the middle part of the hollow ball is movably sleeved with the annular cover, the annular cover is fixed with the inner wall of the hollow seat, and the elastic telescopic rod is arranged between the sleeve plate and the inner wall of the hollow seat, so that when the charging wire falls under the action of gravity, the charging head can rotate and move along with the charging wire; therefore, the charging head is prevented from being broken and damaged due to the fact that the gravity of the charging wire generates bending force on the charging head.

Description

Technical Field

[0001] The present invention relates to the technical field of charging piles, and in particular to a universal floating docking device for a charging head of a new energy vehicle charging pile. Background Art

[0002] Charging piles are an important part of the new energy vehicle ecosystem. A long charging cable is usually connected to the charging gun, which increases the extended area of the charging gun during use. Charging ports in different positions on different models can be connected to the charging pile very smoothly.

[0003] In the prior art, Chinese invention publication number CN116454683A discloses a floating docking mechanism for an AGV charger plug, which achieves a flexible connection between the AGV and the charger during docking, and has a reasonable layout, a simple and compact structure, and low cost.

[0004] Currently, after the charging head is docked, the charging cable naturally hangs down under the action of gravity, creating a certain angle between the charging cable and the charging head. The charging cable exerts a vertical bending force on the charging head due to its own gravity, causing the charging head to break and damage over time, thus shortening its service life. To address this problem, the present invention proposes a universal floating docking device for charging heads of new energy vehicle charging piles to solve this problem. Summary of the Invention

[0005] The purpose of the present invention is to provide a universal floating docking device for a charging head of a new energy vehicle charging pile, so as to solve the problem in the above background technology that the charging head is easily damaged by bending force after docking.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a universal floating docking device for a charging head of a new energy vehicle charging pile, comprising: A mounting seat, a sliding plate is slidably mounted on the surface of the mounting seat, a return spring is provided at both ends of the sliding plate, and one end of the return spring is fixed to the mounting seat, a movable plate is provided on one side of the sliding plate, a gap is left between the movable plate and the sliding plate, and a support spring is provided between the two; A guide cylinder, the guide cylinder is fixed to the surface of the movable plate, the inner cavity of the guide cylinder is movably connected to a hollow shaft, the outer side of the hollow shaft is sleeved with a protective cover, and one end of the hollow shaft is fixed to one end of the protective cover, one end of the protective cover is fixedly provided with a hollow seat, and the outer side of the hollow seat is provided with a charging head; The hollow ball is rotatably mounted in the inner cavity of the hollow seat. A threaded barrel is fixed on one side of the surface of the hollow ball, and the charging head and the hollow ball are fixedly connected by threads.

[0007] Preferably, a reset plate is movably provided in the inner cavity of the hollow seat, a tooth groove 1 is provided on the other side of the surface of the hollow sphere, a tooth groove 2 is provided on the surface of the reset plate, and the tooth groove 2 is engaged with the tooth groove 1 correspondingly, a strip groove is provided at the edge of the reset plate, and a sleeve plate corresponding to the strip groove is slidably provided at the edge of the reset plate, an elastic telescopic rod is fixed on the sleeve plate, and the end of the elastic telescopic rod is fixed to the inner wall of the hollow seat.

[0008] Preferably, the reset plate and the hollow seat are both arranged in a square structure, and the side length of the hollow seat is greater than the side length of the reset plate. One end of the hollow seat is provided with an opening, and a flexible layer is provided at the opening. The middle part of the flexible layer is bonded and fixed to the surface of the hollow ball.

[0009] Preferably, the outer movable sleeve in the middle of the hollow ball is provided with an annular cover, and the annular cover is fixedly connected to the inner wall of the hollow seat, and there are multiple tooth grooves 1 and 2, multiple tooth grooves 1 are concentrically arranged on the surface of the hollow ball, and the diameters increase successively, and multiple tooth grooves 2 are concentrically arranged on the surface of the reset plate, and the diameters increase successively.

[0010] Preferably, a circular hole corresponding to the hollow shaft is opened in the middle of the movable plate, a main spring is sleeved on the outer side of the hollow shaft, annular seats are provided at both ends of the main spring, and the surfaces of the guide cylinder and an annular seat that are in contact with each other are respectively provided with annular teeth one and annular teeth two, and the two are engaged with each other.

[0011] Preferably, a retaining ring is fixed to the other end of the hollow shaft, and the inner wall of the guide cylinder is provided with a plurality of limit slots distributed in a circular array and a plurality of guide slots distributed in a circular array, and the limit slots and guide slots are distributed in sequence at intervals, and the surface of the hollow shaft is movably plugged with blocks corresponding to the plurality of limit slots.

[0012] Preferably, an inner boss is fixed to the inner wall of the hollow shaft, a receiving groove is opened on the surface of the hollow shaft, and a clamping block is slidably installed in the inner cavity of the receiving groove, one end of the clamping block is set into a rounded "<" shape structure, and a limiting rod is fixed to the other end of the clamping block, and a thrust spring located in the inner cavity of the receiving groove is sleeved on the outer side of the middle part of the limiting rod, and one end of the limiting rod is movable through the inner wall of the inner boss and is fixedly connected with a nut.

[0013] Preferably, an annular plate is provided on the side of the reset plate away from the hollow ball, and a gap is left between the annular plate and the reset plate. The annular plate and the reset plate are fixedly connected by a convex ring. A limiting ring is provided on the outer side of the annular plate, and a hollow groove is opened inside the limiting ring. The edge of the annular plate is slidably installed in the inner cavity of the hollow groove, and the limiting ring is fixedly connected to the hollow seat by bolts.

[0014] Preferably, a guide rail is fixed on the surface of the mounting seat, a guide slider corresponding to the guide rail is fixed on the surface of the sliding plate, and the guide slider is slidingly connected to the guide rail, and four support springs are provided and respectively located at the four corners of the sliding plate.

[0015] Preferably, the inner cavity of the support spring is provided with a short pin shaft, one end of the short pin shaft is fixed to the sliding plate, and the other end of the short pin shaft is movably passed through the hole opened on the movable plate, and the aperture of the hole opened on the movable plate is larger than the diameter of the short pin shaft, and the inner cavity of the reset spring is plugged with a long pin shaft, one end of the long pin shaft is fixed to the sliding plate, and the other end of the long pin shaft is movably passed through and connected with the vertical plate on the mounting seat.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention is characterized in that a hollow ball is movably arranged in the inner cavity of the hollow seat, an annular cover is movably sleeved on the outer middle part of the hollow ball, and the annular cover is fixed to the inner wall of the hollow seat, a threaded cylinder is fixed to the surface of one side of the hollow ball, and the charging head and the hollow ball are fixedly connected by a thread, a tooth groove one is provided on the surface of the other side of the hollow ball, a reset plate is provided in the inner cavity of the hollow seat, and a tooth groove two is provided on the surface of the reset plate that matches the tooth groove one, a sleeve plate is slidably connected to the edge of the reset plate, and an elastic telescopic rod is provided between the sleeve plate and the inner wall of the hollow seat, the charging head can rotate freely in any direction with the hollow ball within a certain angle range, and after the charging head is docked, when the charging line drops under the action of gravity, the charging head can rotate and move accordingly to ensure that the two are in the same straight line as much as possible, thereby avoiding the gravity of the charging line generating a bending force on the charging head, which may cause the charging head to break or be damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the separation of the sliding plate and the mounting seat structure of the present invention; Figure 3 This is a schematic diagram of the interior of the protective cover structure of the present invention; Figure 4 This is a schematic diagram of the separation of the hollow ball and the reset plate structure of the present invention; Figure 5 This is a schematic diagram of the separation of the reset plate and the limit ring structure of the present invention; Figure 6 This is a schematic diagram of the separation of the annular seat and the guide cylinder structure of the present invention; Figure 7 This is a schematic diagram of the internal structure of the guide cylinder and hollow shaft of the present invention; Figure 8 It is a side sectional schematic diagram of the guide cylinder and hollow shaft structure of the present invention; Figure 9 It is a three-dimensional schematic diagram of the limit slot and guide slot structure of the present invention; Figure 10 This is a schematic diagram of the installation of the card block structure of the present invention.

[0018] In the figure: 1. Mounting seat; 11. Guide rail; 2. Sliding plate; 21. Movable plate; 22. Support spring; 23. Reset spring; 24. Guide slider; 3. Guide cylinder; 31. Ring gear 1; 32. Limiting slot; 33. Guide slot; 4. Hollow shaft; 41. Main spring; 42. Ring seat; 421. Ring gear 2; 43. Retaining ring; 44. Block; 45. Inner boss; 46. Receiving slot; 47. Limiting rod; 48. Thrust spring; 5. Protective cover; 51. Hollow seat; 52. Flexible layer; 6. Charging head; 7. Hollow ball; 71. Ring cover; 72. Tooth groove 1; 8. Reset plate; 81. Tooth groove 2; 82. Strip groove; 83. Sleeve plate; 84. Elastic telescopic rod; 85. Ring plate; 9. Limiting ring; 91. Hollow groove. DETAILED DESCRIPTION

[0019] In order to clearly and completely describe the objectives and technical solutions of the present invention and make the advantages more clearly understood, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figures 1 to 10 , the present invention provides a technical solution: Embodiment 1, a universal floating docking device for a charging head of a new energy vehicle charging pile, includes: a mounting seat 1, a guide cylinder 3 and a hollow ball 7.

[0021] Specifically, a sliding plate 2 is slidably mounted on the surface of the mounting seat 1. Return springs 23 are provided at both ends of the sliding plate 2, and one end of the return spring 23 is fixed to the mounting seat 1. Figure 1 and Figure 2 As shown, the sliding plate 2 can slide up and down along its own length direction. When the sliding plate 2 slides, the return springs 23 at both ends of the sliding plate 2 are elastically deformed at the same time and can reset the sliding of the sliding plate 2. A movable plate 21 is provided on one side of the sliding plate 2. A gap is left between the movable plate 21 and the sliding plate 2, and a support spring 22 is provided between the two. The setting of the support spring 22 enables the movable plate 21 and the sliding plate 2 to move closer to or away from each other. At the same time, the movable plate 21 itself can also tilt within a certain angle range. The support spring 22 can be used to reset the movable plate 21. Secondly, the guide cylinder 3 is fixed to the surface of the movable plate 21, and the inner cavity of the guide cylinder 3 is movably connected with a hollow shaft 4. The hollow shaft 4 can only slide along the length direction of the guide cylinder 3, and when the guide cylinder 3 tilts together with the movable plate 21, the hollow shaft 4 can also tilt accordingly. A protective cover 5 is sleeved on the outside of the hollow shaft 4, and one end of the hollow shaft 4 is fixed to one end of the protective cover 5, with a gap between the protective cover 5 and the hollow shaft 4. A hollow seat 51 is fixedly provided at one end of the protective cover 5, and a charging head 6 is provided on the outside of the hollow seat 51. The charging head 6 is used for charging docking, and the cable on the charging head 6 can pass through the inner cavity of the hollow seat 51 and the inner cavity of the hollow shaft 4 in sequence; Furthermore, the hollow ball 7 is rotatably mounted in the inner cavity of the hollow seat 51, a threaded barrel is fixed on one side of the surface of the hollow ball 7, and the charging head 6 and the hollow ball 7 are fixedly connected by threads, as shown in FIG. Figure 4 and Figure 3 As shown, the charging head 6 and the hollow ball 7 maintain a relatively fixed connection. Since the hollow ball 7 can rotate freely around its own center within a certain angle range, the inclination angle of the charging head 6 itself can be adjusted arbitrarily. When the charging head 6 is docked, the charging head 6 can be tilted due to the gravity of the charging line, thereby ensuring that the connection between the charging head 6 and the charging line can be kept in the same straight line as much as possible, thereby reducing the bending force generated by the gravity of the charging line on the charging head 6, and avoiding the charging head 6 from breaking or being damaged after long-term and multiple uses.

[0022] In order to reset the charging head 6, the present application also has a reset plate 8 movably provided in the inner cavity of the hollow seat 51, and the reset plate 8 can slide in any direction on the plane where it is located. A tooth groove 1 72 is provided on the other side of the surface of the hollow ball 7, and a tooth groove 2 81 is provided on the surface of the reset plate 8, and the tooth groove 2 81 is engaged with the tooth groove 1 72 corresponding to each other. When the hollow ball 7 rotates, the hollow ball 7 can drive the reset plate 8 to slide accordingly through the engagement transmission between the tooth groove 1 72 and the tooth groove 2 81. A strip groove 82 is provided at the edge of the reset plate 8, and a sleeve plate 83 corresponding to the strip groove 82 is slidably sleeved on the edge of the reset plate 8. An elastic telescopic rod 84 is fixed on the sleeve plate 83, and the end of the elastic telescopic rod 84 is fixed to the inner wall of the hollow seat 51. The elastic telescopic rod 84 has a built-in spring. When the reset plate 8 slides, it will compress the elastic telescopic rod 84, and the elastic telescopic rod 84 can be used to reset the reset plate 8, thereby realizing the reset of the hollow ball 7 and the charging head 6.

[0023] In order to prevent dust and water from entering the inner cavity of the hollow seat 51, the reset plate 8 and the hollow seat 51 of the present application are both arranged in a square structure, and the side length of the hollow seat 51 is greater than the side length of the reset plate 8. The reset plate 8 can only slide in the inner cavity of the hollow seat 51. An opening is provided at one end of the hollow seat 51, and a flexible layer 52 is provided at the opening. The middle part of the flexible layer 52 is bonded and fixed to the surface of the hollow ball 7. Figure 3As shown, the flexible layer 52 is mainly used to seal the inner cavity of the hollow seat 51 to prevent external dust and rainwater from entering the inner cavity of the hollow seat 51. At the same time, the flexible layer 52 itself is flexible and will not cause movement interference with the rotation and tilt of the charging head 6.

[0024] In order to facilitate the resetting of the hollow ball 7, the present application also has an annular cover 71 movably sleeved on the outer middle part of the hollow ball 7, and the annular cover 71 is fixedly connected to the inner wall of the hollow seat 51, the inner wall of the annular cover 71 is an arc-shaped structure and fits the surface of the hollow ball 7, and the annular cover 71 is used to position the hollow ball 7 to ensure that the hollow ball 7 can only rotate around its own center without position displacement. There are multiple tooth grooves 72 and tooth grooves 81. Multiple tooth grooves 72 are concentrically arranged on the surface of the hollow ball 7, and the diameters increase successively. Multiple tooth grooves 81 are concentrically arranged on the surface of the reset plate 8, and the diameters increase successively. Figure 4 As shown, the plurality of tooth grooves 72 and the plurality of tooth grooves 81 are all circular structures and meshed one by one, thereby ensuring that the hollow ball 7 can always drive the reset plate 8 to move accordingly during the rotation process. Conversely, when the reset plate 8 is reset by the elastic telescopic rod 84, it can drive the hollow ball 7 to automatically reset.

[0025] In order to prevent the protective cover 5 and the guide cylinder 3 from easily rotating relative to each other, the present application also has a circular hole corresponding to the hollow shaft 4 in the middle of the movable plate 21. The hollow shaft 4 can slide along its own length direction without being hindered by the movable plate 21. A main spring 41 is sleeved on the outside of the hollow shaft 4. An annular seat 42 is provided at both ends of the main spring 41. The surfaces of the guide cylinder 3 and an annular seat 42 that fit each other are respectively provided with an annular tooth 1 31 and an annular tooth 2 421, and the two are meshed with each other. The setting of the main spring 41 is mainly used for air The sliding of the central shaft 4 resets the hollow shaft 4 and the protective cover 5 so that the hollow shaft 4 and the protective cover 5 always tend to move away from the guide cylinder 3. The engagement between the annular tooth 2 421 and the annular tooth 1 31 can prevent the annular seat 42 from rotating. When the user rotates the hollow seat 51 and the protective cover 5, relative rotation will occur between the protective cover 5 and the guide cylinder 3. At this time, the main spring 41 is torsionally deformed (acting as a torsion spring). After the user releases the hollow seat 51, the protective cover 5 and the hollow seat 51 can automatically reset under the torsion of the main spring 41.

[0026] In order to facilitate the docking of the charging head 6, the present application also has a retaining ring 43 fixed on the other end of the hollow shaft 4. The retaining ring 43 is set to limit the sliding of the hollow shaft 4 and prevent the hollow shaft 4 from separating from the guide cylinder 3 under the elastic force of the main spring 41. A plurality of limiting card grooves 32 distributed in an annular array and a plurality of guide slide grooves 33 distributed in an annular array are provided on the inner wall of the guide cylinder 3, and the limiting card grooves 32 and the guide slide grooves 33 are distributed in sequence. The surface of the hollow shaft 4 is movably plugged with a card block 44 corresponding to the plurality of limiting card grooves 32. Figure 8 As shown, the number of the limiting card slots 32, the guide slots 33 and the card blocks 44 is the same, and the multiple card blocks 44 can only be located in the inner cavities of the multiple limiting card slots 32, or in the inner cavities of the multiple guide slots 33. By rotating the hollow shaft 4, the card blocks 44 can be controlled to correspond to the limiting card slots 32, or the card blocks 44 can be controlled to correspond to the guide slots 33. Figure 9 As shown, when the block 44 corresponds to the limit slot 32, the hollow shaft 4 and the guide cylinder 3 cannot slide relative to each other. When the block 44 corresponds to the guide slot 33, the hollow shaft 4 and the guide cylinder 3 can slide relative to each other. The advantage of this design is that before the user needs to dock the charging head 6, he first rotates the hollow seat 51 to drive the protective cover 5 and the hollow shaft 4 to rotate accordingly until the block 44 corresponds to the limit slot 32. At this time, the hollow shaft 4 will not slide relative to the guide cylinder 3, which makes it easy for the charging head 6 to dock. Then release the hollow seat 51, and the main spring 41 automatically resets the rotation of the hollow shaft 4 under the action of torsion until the block 44 corresponds to the guide slot 33. At this time, relative sliding can occur between the hollow shaft 4 and the guide cylinder 3, so as to facilitate the adjustment of the position of the hollow shaft 4.

[0027] In order to accommodate the card block 44, the present application also has an inner boss 45 fixed on the inner wall of the hollow shaft 4, a receiving groove 46 is opened on the surface of the hollow shaft 4, and the card block 44 is slidably installed in the inner cavity of the receiving groove 46. The setting of the receiving groove 46 is mainly used to accommodate the card block 44. One end of the card block 44 is set to a rounded "<" shape structure, and the other end of the card block 44 is fixed with a limiting rod 47. The outer side of the middle part of the limiting rod 47 is provided with a thrust spring 48 located in the inner cavity of the receiving groove 46. One end of the limiting rod 47 movably passes through the inner wall of the inner boss 45 and is fixedly connected with a nut, such as Figure 10 As shown, the elastic force of the thrust spring 48 itself pushes the block 44 to always have a tendency to move away from the inner cavity of the inner boss 45, but the limit rod 47 and the nut at one end of the limit rod 47 can limit the sliding of the block 44 to ensure that the block 44 will not completely detach from the receiving groove 46.

[0028] In order to prevent the hollow ball 7 from separating from the reset plate 8, the present application also has an annular plate 85 provided on the side of the reset plate 8 away from the hollow ball 7, and a gap is left between the annular plate 85 and the reset plate 8, the annular plate 85 and the reset plate 8 are fixedly connected by a convex ring, a limiting ring 9 is provided on the outer side of the annular plate 85, a hollow groove 91 is opened inside the limiting ring 9, the edge of the annular plate 85 is slidably installed in the inner cavity of the hollow groove 91, and the limiting ring 9 is fixedly connected to the hollow seat 51 by bolts, as shown in FIG. Figure 5 As shown, the annular plate 85 can only slide in the inner cavity of the hollow groove 91, and the distance between the reset plate 8 and the limiting ring 9 is always kept unchanged. By positioning the limiting ring 9, the position of the reset plate 8 can be limited, so that the reset plate 8 and the hollow ball 7 are always kept in contact with each other, and the two will not be separated from each other, resulting in the tooth groove 1 72 and the tooth groove 2 81 being unable to maintain engagement.

[0029] In order to slide the sliding plate 2, the present application also has a guide rail 11 fixed on the surface of the mounting seat 1, a guide slider 24 corresponding to the guide rail 11 fixed on the surface of the sliding plate 2, and the guide slider 24 is slidably connected to the guide rail 11, such as Figure 2 As shown, the guide rail 11 is used to guide the sliding of the guide slider 24, and then limit and guide the sliding of the sliding plate 2. Four support springs 22 are provided and are respectively located at the four corners of the sliding plate 2. By tilting the movable plate 21, the support springs 22 at different positions of the corners of the movable plate 21 will undergo different degrees of elastic deformation, but the movable plate 21 and the sliding plate 2 always remain corresponding to each other and will not separate from each other.

[0030] In order to avoid damage to the support spring 22 and the return spring 23, the present application also has a short pin shaft provided in the inner cavity of the support spring 22, one end of the short pin shaft is fixed to the sliding plate 2, and the other end of the short pin shaft is movable through the hole opened on the movable plate 21, and the hole diameter of the hole opened on the movable plate 21 is larger than the diameter of the short pin shaft, and the other end of the short pin shaft is provided with a circular plate with a larger diameter to prevent the movable plate 21 from detaching from it. Since the inner diameter of the hole opened on the movable plate 21 is larger than the diameter of the short pin shaft itself, the movable plate 21 itself will not detach from the short pin shaft when it is tilted. Interference occurs between the axes. The setting of the short pin shaft can be used to avoid the support spring 22 from bending, thereby preventing the movable plate 21 from being misaligned with the sliding plate 2, and at the same time avoiding the movable plate 21 and the sliding plate 2 from being too far away from each other, which causes the support spring 22 to be overstretched and deformed, and damaged. A long pin shaft is inserted into the inner cavity of the reset spring 23, one end of the long pin shaft is fixed to the sliding plate 2, and the other end of the long pin shaft is movably connected with the vertical plate on the mounting seat 1. The setting of the long pin shaft can be used to avoid the reset spring 23 from bending and deforming, which causes the reset spring 23 to be damaged.

[0031] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A universal floating docking device for a charging head of a new energy vehicle charging pile, characterized by: include: A mounting seat (1), wherein a sliding plate (2) is slidably mounted on the surface of the mounting seat (1), a return spring (23) is provided at both ends of the sliding plate (2), and one end of the return spring (23) is fixed to the mounting seat (1), a movable plate (21) is provided on one side of the sliding plate (2), a gap is left between the movable plate (21) and the sliding plate (2), and a support spring (22) is provided between the two; A guide cylinder (3), the guide cylinder (3) being fixed to the surface of the movable plate (21), the inner cavity of the guide cylinder (3) being movably connected to a hollow shaft (4), the outer side of the hollow shaft (4) being sleeved with a protective cover (5), one end of the hollow shaft (4) being fixed to one end of the protective cover (5), one end of the protective cover (5) being fixedly provided with a hollow seat (51), and a charging head (6) being provided on the outer side of the hollow seat (51); A hollow ball (7) is rotatably mounted in the inner cavity of the hollow seat (51), a threaded barrel is fixed on one side of the surface of the hollow ball (7), and the charging head (6) and the hollow ball (7) are threadedly fixedly connected.

2. The universal floating docking device for a charging head of a new energy vehicle charging pile according to claim 1 is characterized in that: A reset plate (8) is movably provided in the inner cavity of the hollow seat (51), a tooth groove (72) is provided on the other side of the surface of the hollow ball (7), a tooth groove (81) is provided on the surface of the reset plate (8), and the tooth groove (81) and the tooth groove (72) are meshed with each other, a strip groove (82) is provided at the edge of the reset plate (8), and a sleeve plate (83) corresponding to the strip groove (82) is slidably provided at the edge of the reset plate (8), an elastic telescopic rod (84) is fixed on the sleeve plate (83), and the end of the elastic telescopic rod (84) is fixed to the inner wall of the hollow seat (51).

3. The universal floating docking device for a charging head of a new energy vehicle charging pile according to claim 2 is characterized in that: The reset plate (8) and the hollow seat (51) are both arranged in a square structure, and the side length of the hollow seat (51) is greater than the side length of the reset plate (8). An opening is provided at one end of the hollow seat (51), and a flexible layer (52) is provided at the opening. The middle portion of the flexible layer (52) is bonded and fixed to the surface of the hollow ball (7).

4. The universal floating docking device for a charging head of a new energy vehicle charging pile according to claim 3 is characterized in that: The outer movable sleeve of the middle part of the hollow ball (7) is provided with an annular cover (71), and the annular cover (71) is fixedly connected to the inner wall of the hollow seat (51). The tooth grooves 1 (72) and the tooth grooves 2 (81) are both provided in plurality. The plurality of tooth grooves 1 (72) are concentrically arranged on the surface of the hollow ball (7) and their diameters increase successively. The plurality of tooth grooves 2 (81) are concentrically arranged on the surface of the reset plate (8) and their diameters increase successively.

5. The universal floating docking device for a charging head of a new energy vehicle charging pile according to claim 4 is characterized in that: A circular hole corresponding to the hollow shaft (4) is provided in the middle of the movable plate (21), a main spring (41) is sleeved on the outer side of the hollow shaft (4), and an annular seat (42) is provided at both ends of the main spring (41), and the surfaces of the guide cylinder (3) and an annular seat (42) that are in contact with each other are respectively provided with an annular tooth 1 (31) and an annular tooth 2 (421), and the two are meshed with each other.

6. The universal floating docking device for a charging head of a new energy vehicle charging pile according to claim 5, characterized in that: A retaining ring (43) is fixed to the other end of the hollow shaft (4), and the inner wall of the guide cylinder (3) is provided with a plurality of limit slots (32) distributed in an annular array and a plurality of guide slots (33) distributed in an annular array, and the limit slots (32) and the guide slots (33) are distributed in sequence and at intervals, and a card block (44) corresponding to the plurality of limit slots (32) is movably inserted on the surface of the hollow shaft (4).

7. The universal floating docking device for a charging head of a new energy vehicle charging pile according to claim 6, characterized in that: An inner boss (45) is fixed to the inner wall of the hollow shaft (4), a receiving groove (46) is opened on the surface of the hollow shaft (4), and a clamping block (44) is slidably installed in the inner cavity of the receiving groove (46), one end of the clamping block (44) is set into a rounded "<"-shaped structure, and the other end of the clamping block (44) is fixed to a limiting rod (47), and a thrust spring (48) located in the inner cavity of the receiving groove (46) is sleeved on the outer side of the middle part of the limiting rod (47), and one end of the limiting rod (47) is movable through the inner wall of the inner boss (45) and fixedly connected with a nut.

8. The universal floating docking device for a charging head of a new energy vehicle charging pile according to claim 7, characterized in that: An annular plate (85) is provided on the side of the reset plate (8) away from the hollow ball (7), and a gap is left between the annular plate (85) and the reset plate (8). The annular plate (85) and the reset plate (8) are fixedly connected via a convex ring. A limiting ring (9) is provided on the outer side of the annular plate (85), and a hollow groove (91) is provided inside the limiting ring (9). The edge of the annular plate (85) is slidably mounted in the inner cavity of the hollow groove (91), and the limiting ring (9) is fixedly connected to the hollow seat (51) via bolts.

9. The universal floating docking device for a charging head of a new energy vehicle charging pile according to claim 1, characterized in that: A guide rail (11) is fixed on the surface of the mounting seat (1), a guide slider (24) corresponding to the guide rail (11) is fixed on the surface of the sliding plate (2), and the guide slider (24) is slidably connected to the guide rail (11), and four support springs (22) are provided and respectively located at the four corners of the sliding plate (2).

10. The universal floating docking device for a charging head of a new energy vehicle charging pile according to claim 9, characterized in that: The inner cavity of the support spring (22) is provided with a short pin shaft, one end of the short pin shaft is fixed to the sliding plate (2), and the other end of the short pin shaft is movably passed through the hole opened on the movable plate (21), and the hole diameter of the hole opened on the movable plate (21) is larger than the diameter of the short pin shaft, and the inner cavity of the reset spring (23) is plugged with a long pin shaft, one end of the long pin shaft is fixed to the sliding plate (2), and the other end of the long pin shaft is movably passed through and connected with the vertical plate on the mounting seat (1).

Images