A charging pile swing arm device

Abstract

The application discloses a charging pile swing arm device, and belongs to the technical field of new energy charging piles. The device comprises a rotating disc applied to a charging pile, and further comprises a support assembly for cable support, a fixed arm fixedly arranged on the rotating disc, and a rotating arm hingedly arranged on the fixed arm. The fixed arm and the rotating arm are both provided with a track penetrating each other. A sliding block is slidably arranged in the track, and a guide ring for cable movement and guidance is fixedly arranged at the bottom of the sliding block. A limiting assembly comprises a vertical air bag fixedly arranged on the fixed arm. When the sliding block moves to the end of the fixed arm, the length of the vertical air bag is shortened. When the sliding block is located at one end of the inner side of the rotating arm, the cable can slide along the inner diameter of the guide ring, further supporting the cable, ensuring the safety and stability of the cable during use, and preventing scratching of the vehicle.

Description

Technical Field

[0001] This invention belongs to the field of new energy charging pile technology, and in particular relates to a charging pile swing arm device. Background Technology

[0002] With the increasing popularity of new energy vehicles, the frequency of use of public charging stations has increased significantly, leading to a growing imbalance between the supply and demand of charging spaces and frequent instances of illegal parking. Some users fail to park in their designated charging spaces or exceed the designated area, resulting in adjacent spaces being occupied and subsequent vehicles needing to cross spaces to connect to charging stations. The existing charging pile swing arms have design limitations in supporting cables. Due to limitations in material strength and structural load-bearing capacity, the swing arms can only support cables within the normal parking distance. When pulling across parking spaces, the support is insufficient. Furthermore, the swing arm's swing range and adjustment freedom are limited. In scenarios involving crossing parking spaces, cables are prone to detaching from the support. Due to their own weight, they form a significant sag, and the drooping cables will come into contact with the surface of the vehicle below. Although there is no high-speed relative motion, external forces such as cable tension, a slight breeze, or human contact will cause them to continuously rub against the vehicle's paint and body parts. Long-term or frequent friction will cause scratches on the paint and damage to the protective layer. In severe cases, it can scratch the metal parts of the vehicle body, leading to vehicle damage. Summary of the Invention

[0003] To address the problems existing in the prior art, this invention provides a charging pile swing arm device, which solves the problem that existing swing arms cannot adjust the cable support according to different vehicle spans, leading to easy wear and scratches on the cable to the vehicle.

[0004] This invention is implemented as follows: a charging pile swing arm device includes a turntable applied to the charging pile, and further includes: A support assembly for cable support includes a fixed arm fixedly mounted on a turntable and a rotating arm hinged to the fixed arm. Both the fixed arm and the rotating arm have interconnected tracks. A slider is slidably mounted in the track, and a guide ring for guiding cable movement is fixedly mounted at the bottom of the slider. The cable is movably mounted in the guide ring. A limiting component for adjusting cable length is mounted on a fixed arm. The limiting component includes a vertical airbag fixedly mounted on the fixed arm. When the slider moves to the end of the fixed arm, the length of the vertical airbag becomes shorter. When the slider is located at one end of the inner side of the rotating arm, the cable can slide along the inner diameter of the guide ring.

[0005] As a preferred embodiment of the present invention, a bending assembly for driving the rotating arm to rotate is provided between the rotating arm and the fixed arm. The bending assembly includes an arc-shaped guide frame fixedly mounted on the fixed arm, and a movable frame is slidably mounted inside the guide frame. The guide frame is based on the rotation axis of the rotating arm and the fixed arm.

[0006] As a preferred embodiment of the present invention, an arc-shaped airbag for driving the moving frame is provided inside the guide frame, and two wedge-shaped airbags for supplying air to the arc-shaped airbag are symmetrically arranged inside the fixed arm, and the two wedge-shaped airbags are arranged in a V-shape, with locking elements provided on the two wedge-shaped airbags.

[0007] As a preferred embodiment of the present invention, the locking component includes a magnetic absorbing piece disposed on the wedge-shaped airbag, and another magnetic absorbing piece is disposed on the inner wall of the fixing arm. The two magnetic absorbing pieces are magnetically attracted to each other, and an inclined paddle for separating the two magnetic absorbing pieces is disposed on both sides of the slider.

[0008] In a preferred embodiment of the present invention, one end of the vertical airbag is fixed to a cable and the other end is fixed to a fixed arm. A guide spring for guiding the movement of the vertical airbag is provided between the cable and the fixed arm, and a retractable guide rod is provided inside the guide spring. An air supply assembly for supplying air to the vertical airbag is also provided between the rotating arm and the fixed arm.

[0009] As a preferred embodiment of the present invention, the air supply assembly includes a piston tube hinged to a fixed arm and a piston tube hinged to a rotating arm, with the piston rod slidably disposed inside the piston tube, and the piston tube communicating with the vertical airbag.

[0010] As a preferred embodiment of the present invention, a traction component for cable traction is provided inside the guide ring. The traction component includes two friction wheels symmetrically rotatably disposed inside the guide ring. A reversing gearbox is provided inside the guide ring and is connected to one of the friction wheels in a transmission manner. A drive motor is provided at the input end of the reversing gearbox. A compression spring is fixedly disposed on one side of the slider, and an electrode plate is disposed inside the compression spring. The electrode plate includes a positive electrode and a negative electrode, which are respectively disposed at both ends of the compression spring.

[0011] As a preferred embodiment of the present invention, a reset spring is fixedly provided on the other side of the slider, and one end of the reset spring is fixedly provided on one side of the inner wall of the track.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention extends the cable into a serpentine shape by extending the vertical airbag, effectively increasing the cable length and reducing cable winding, thus preventing overheating during charging. During use, the fixed and rotating arms work together to move the cable, suspending it and preventing wear. When the charging span is large, the fixed and rotating arms form a unified support, preventing the cable from rubbing against the vehicle surface and causing damage, further improving the stability and safety of the equipment. The vertical airbag and the serpentine shape of the fixed arm effectively lift the charging head, eliminating the need for manual insertion into the charging station and preventing damage due to improper charging head storage. This further enhances the practicality and ease of use of the equipment, while also extending its lifespan. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the front view structure of the present invention; Figure 2 This is a schematic diagram of the structure from the lower side view of the present invention; Figure 3 This is a schematic diagram of the structure from a partial upper view of the present invention; Figure 4 This is a schematic diagram of the structure from a partial lower view of the present invention; Figure 5 This is a partial top-view cross-sectional structural diagram of the present invention; Figure 6 This is a schematic diagram of the internal structure of the invention from a partial right-side view. Figure 7 This is a schematic diagram of the cross-sectional structure from a partial right-side perspective of the present invention; Figure 8 This is a schematic diagram of the workflow of the present invention.

[0014] In the picture: 1. Turntable; 2. Support assembly; 21. Fixed arm; 22. Rotating arm; 23. Track; 3. Slider; 4. Guide ring; 5. Bending assembly; 51. Guide frame; 52. Moving frame; 53. Arc-shaped airbag; 54. Wedge-shaped airbag; 55. Magnetic suction plate; 56. Paddle; 6. Limiting assembly; 61. Vertical airbag; 62. Guide spring; 7. Air supply assembly; 71. Piston tube; 72. Piston rod; 8. Traction assembly; 81. Friction wheel; 82. Drive motor; 83. Reversing gearbox; 84. Compression spring; 85. Electrode plate; 9. Return spring. Detailed Implementation

[0015] To further understand the invention's content, features, and effects, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0016] The structure of the present invention will now be described in detail with reference to the accompanying drawings.

[0017] like Figures 1 to 8 As shown, an embodiment of the present invention provides a charging pile swing arm device, including a turntable 1 applied to a charging pile, and further comprising: The support assembly 2 for cable support includes a fixed arm 21 fixedly mounted on the turntable 1 and a rotating arm 22 hinged to the fixed arm 21. The fixed arm 21 and the rotating arm 22 are both provided with interconnected tracks 23. A slider 3 is slidably mounted in the track 23, and a guide ring 4 for guiding the movement of the cable is fixedly mounted at the bottom of the slider 3. The cable is movably mounted in the guide ring 4. A limiting component 6 for adjusting cable length is provided on the fixed arm 21. The limiting component 6 includes a vertical airbag 61 fixedly provided on the fixed arm 21. When the slider 3 moves to the end of the fixed arm 21, the length of the vertical airbag 61 becomes shorter. When the slider 3 is located at one end of the inner side of the rotating arm 22, the cable can slide along the inner diameter of the guide ring 4. refer to Figure 8 and Figure 2 In the initial state of the equipment, the rotating arm 22 is set at a certain angle based on the fixed arm 21, and the cable and the guide ring 4 are relatively fixed. When the vehicle approaches the charging pile and the cable charging head, the cable charging head can be pulled to make the cable control slider 3 slide in the track 23. By sliding the slider 3, the position of the guide ring 4 can be effectively changed, and the length of the cable end can be changed, so that the vehicle can be fully charged. For example, when a tall truck is parked at a charging station, or when vehicles are parked on both sides and the charging vehicle is parked at the far side, the end of the cable can be continuously pulled to rotate the fixed arm 21 to a certain angle. Since the fixed arm 21 is relatively short, the truck can prevent it from obstructing the rotation. The slider 3 then continues to move within the track 23. When the slider 3 reaches the end of the fixed arm 21, if the cable is still too far from the vehicle, the slider 3 can be pulled further via the cable. As the slider 3 moves within the track 23, the rotating arm 22 rotates based on the fixed arm 21, creating a lateral support between the fixed arm 21 and the rotating arm 22, effectively extending the length of the fixed arm 21. The lateral distance is such that it forms a support, and the fixed arm 21 will not be unable to rotate due to the height of the truck. After being extended, it can support the cable and reduce the curvature of the cable. When the slider 3 moves into the track 23 inside the rotating arm 22, the length of the vertical airbag 61 gradually shortens as the rotating arm 22 rotates. At this time, the overall outward length of the cable increases, which can effectively adapt to the position of the vehicle. At the same time, the rotating arm 22 and the fixed arm 21 form an integral support, which can effectively support the cable. When charging across the vehicle, it can avoid the cable contacting the vehicle due to the sag of the cable, which would cause the cable to scratch the vehicle and thus damage the vehicle. This invention extends the cable into a serpentine shape by elongating the vertical airbag 61, effectively increasing the cable length and reducing cable winding, thus preventing overheating during charging. During use, the fixed arm 21 and rotating arm 22 work together to move the cable, keeping it suspended and preventing wear. When the charging span is large, the fixed arm 21 and rotating arm 22 form a unified support, preventing the cable from rubbing against the vehicle surface and causing damage, further improving the stability and safety of the equipment. The serpentine shape formed by the vertical airbag 61 and the fixed arm 21 effectively lifts the charging head, eliminating the need for manual insertion into the charging station and preventing damage due to improper charging head storage. This further enhances the practicality and ease of use of the equipment, while also extending its lifespan.

[0018] As a preferred embodiment of the present invention, a bending component 5 for driving the rotating arm 22 to rotate is provided between the rotating arm 22 and the fixed arm 21. The bending component 5 includes an arc-shaped guide frame 51 fixedly mounted on the fixed arm 21. A movable frame 52 is slidably mounted inside the guide frame 51, and the guide frame 51 is based on the rotation axis of the rotating arm 22 and the fixed arm 21. refer to Figure 4 and Figure 6When the slider 3 moves to the end of the fixed arm 21, that is, the fixed arm 21 can no longer meet the cable length requirements during charging, the moving frame 52 gradually slides within the guide frame 51. At this time, the moving frame 52 and the guide frame 51 gradually extend into a semi-circular shape. Through the sliding of the moving frame 52 within the guide frame 51, the rotating arm 22 can be effectively driven to rotate on the fixed arm 21, so that the rotating arm 22 and the fixed arm 21 gradually become on the same horizontal plane. At this time, the slider 3 can gradually move from the fixed arm 21 into the rotating arm 22, thereby realizing the continuous extension of the cable span. At this time, the rotating arm 22 and the fixed arm 21 form an integral support to prevent the cable from sag during charging, which could cause wear to the vehicle.

[0019] As a preferred embodiment of the present invention, an arc-shaped airbag 53 for driving the moving frame 52 is provided inside the guide frame 51, and two wedge-shaped airbags 54 for supplying air to the arc-shaped airbag 53 are symmetrically provided inside the fixed arm 21, and the two wedge-shaped airbags 54 are arranged in a V-shape, and locking elements are provided on the two wedge-shaped airbags 54. refer to Figure 5 and Figure 6 When slider 3 gradually moves to the end of fixed arm 21, it means that the length of the cable can no longer meet the existing charging conditions. At this time, as slider 3 moves, slider 3 will gradually squeeze wedge-shaped airbag 54, thereby squeezing out the gas in wedge-shaped airbag 54. When the gas in wedge-shaped airbag 54 is squeezed out, the gas in wedge-shaped airbag 54 gradually enters arc-shaped airbag 53, causing arc-shaped airbag 53 to gradually expand. When arc-shaped airbag 53 expands, arc-shaped airbag 53 can effectively push the moving frame 52 out of the guide frame 51, thereby realizing the rotation of rotating arm 22 based on fixed arm 21, and then forming an integral support, making the equipment more convenient to use, adapting to the charging of vehicles in different positions, further improving the convenience of the equipment during use, and realizing adjustment as needed. At the same time, the length of the cable can be controlled according to the adjustment position, which can ensure the charging length of the cable and avoid the cable dragging on the ground.

[0020] As a preferred embodiment of the present invention, the locking component includes a magnetic absorbing piece 55 disposed on the wedge-shaped airbag 54, and another magnetic absorbing piece 55 disposed on the inner wall of the fixing arm 21. The two magnetic absorbing pieces 55 are magnetically attracted to each other, and an inclined paddle 56 for separating the two magnetic absorbing pieces 55 is disposed on both sides of the slider 3. refer to Figure 5 and Figure 6As the slider 3 continuously compresses the wedge-shaped airbag 54, when the gas inside the wedge-shaped airbag 54 is expelled, the magnetic plates 55 on the wedge-shaped airbag 54 gradually attract the magnetic plates 55 on the inner wall of the fixed arm 21. This attraction keeps the wedge-shaped airbag 54 in a deflated state. When the wedge-shaped airbag 54 is deflated, the gas is located inside the arc-shaped airbag 53, meaning the moving frame 52 remains extended, further ensuring the sliding of the slider 3 and supporting the cable. When the slider 3 resets, the lever 56 on the slider 3 inserts into the two magnetic plates 55 from one side. The two magnetic suction plates 55 gradually separate. When the magnetic suction plates 55 separate from each other, a reset torsion spring (not shown in the figure) is provided between the rotating arm 22 and the fixed arm 21. The reset torsion spring is set on the connecting shaft of the rotating arm 22 and the fixed arm 21, and its two ends are fixed on the rotating arm 22 and the fixed arm 21 respectively. Therefore, the rotating arm 22 will rotate in the opposite direction based on the fixed arm 21. At this time, the gas in the arc-shaped airbag 53 is squeezed back into the wedge-shaped airbag 54, causing the wedge-shaped airbag 54 to expand again. The rotating arm 22 will then be at a certain angle to the fixed arm 21 again, so that the equipment can be deployed again.

[0021] As a preferred embodiment of the present invention, one end of the vertical airbag 61 is fixed to the cable and the other end is fixed to the fixed arm 21. A guide spring 62 for guiding the movement of the vertical airbag 61 is also provided between the cable and the fixed arm 21. A retractable guide rod is provided inside the guide spring 62. An air supply assembly 7 for supplying air to the vertical airbag 61 is also provided between the rotating arm 22 and the fixed arm 21. refer to Figure 3 When the vertical airbag 61 inflates, there are at least two guide springs 62. At this time, the guide springs 62 will gradually stretch along the expansion direction of the vertical airbag 61. Since the guide springs 62 are also equipped with telescopic guide rods, the expansion direction and expansion angle of the vertical airbag 61 can be guaranteed, thereby effectively pushing the cable to arrange in a serpentine pattern. This effectively ensures that the cable can be extended to its maximum length, further ensuring the cable's stretching length and preventing the cable from being too long and dragging on the ground. When the vertical airbag 61 shortens, the guide springs 62 shorten at the same time, thereby effectively releasing the cable so that it can adapt to the charging position.

[0022] As a preferred embodiment of the present invention, the air supply assembly 7 includes a piston tube 71 hinged to the fixed arm 21 and a piston tube 71 hinged to the rotating arm 22, and the piston rod 72 is slidably disposed in the piston tube 71, and the piston tube 71 communicates with the vertical airbag 61. refer to Figure 3The piston rod 72 slides inside the piston tube 71, and a piston plate is provided at the end of the piston rod 72. Therefore, when the rotating arm 22 rotates based on the fixed arm 21, the piston rod 72 slides inside the piston tube 71. At this time, the piston rod 72 forms a suction state relative to the piston tube 71. Since the piston tube 71 is interconnected with the vertical airbag 61, when the piston rod 72 slides and suctions, the gas in the vertical airbag 61 can be extracted, making the length of the vertical airbag 61 shorter. Since the length of the vertical airbag 61 is shortened, and due to the movement of the guide ring 4, the usable length of the cable gradually increases, thereby adapting to charging of vehicles with different spans. At the same time, it prevents the cable from sagging and falling during the charging process, further improving the stability of the equipment and ensuring the safety of the equipment.

[0023] As a preferred embodiment of the present invention, a traction component 8 for cable traction is provided inside the guide ring 4. The traction component 8 includes two friction wheels 81 symmetrically rotatably disposed inside the guide ring 4. A reversing gearbox 83 is provided inside the guide ring 4 and is connected to one of the friction wheels 81 in a transmission manner. A drive motor 82 is provided at the input end of the reversing gearbox 83. A compression spring 84 is fixedly disposed on one side of the slider 3, and an electrode plate 85 is provided inside the compression spring 84. The electrode plate 85 includes a positive electrode and a negative electrode, which are respectively disposed at both ends of the compression spring 84. refer to Figure 7 and Figure 8 Initially, the drive motor 82 is locked, and the two friction wheels 81 are relatively fixed and attached to the surface of the cable, maintaining their fixation. Therefore, when the cable is pulled, the slider 3 can be moved. When the rotating arm 22 and the fixed arm 21 are on the same horizontal plane, and the slider 3 moves to the rightmost side of the rotating arm 22, if the cable length is still insufficient, the slider 3 can be pulled continuously to make one end of the compression spring 84 contact one end of the inner wall of the track 23. At the same time, as the slider 3 compresses the compression spring 84, the positive and negative electrodes in the electrode plate 85 can contact each other. At this time, the drive motor 82 can be controlled to drive the reversing gearbox 83 and the friction wheels 81 to rotate. When the friction wheels 81 During rotation, the cable can move between the two friction wheels 81, thus maximizing the cable length. Supported by the slider 3, the cable is kept from sagging, preventing contact with the vehicle. When the positive and negative electrodes in the electrode plate 85 separate, the friction wheels 81 are locked again. When the slider 3 returns to the leftmost position of the fixed arm 21, the rotating arm 22 rotates based on the fixed arm 21. At this time, the vertical airbag 61 inflates and lengthens. Simultaneously, the existing PLC controller controls the drive motor 82 to rotate in the opposite direction, which in turn drives the friction wheels 81 to rotate in the opposite direction, allowing the cable to be retracted and the charging head to be lifted, thus preventing damage caused by the charging head not being retracted.

[0024] As a preferred embodiment of the present invention, a reset spring 9 is fixedly provided on the other side of the slider 3, and one end of the reset spring 9 is fixedly provided on one side of the inner wall of the track 23. refer to Figure 4 When slider 3 moves to the right, the return spring 9 is gradually stretched. When the cable is charging, since the charging head is connected to the vehicle, the return spring 9 can always be kept in a stretched state. When the device is finished, the charging head is disconnected from the vehicle. At this time, the return spring 9 gradually controls slider 3 to move, which can help the user to drag the cable to the charging station. This can effectively reduce the manual effort required and further improve the ease of use of the device.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A charging pile swing arm device, comprising a turntable (1) applied to a charging pile, characterized in that: Also includes: A support assembly (2) for cable support includes a fixed arm (21) fixedly mounted on a turntable (1) and a rotating arm (22) hinged to the fixed arm (21). The fixed arm (21) and the rotating arm (22) are provided with interconnected tracks (23). A slider (3) is slidably mounted in the track (23), and a guide ring (4) for cable movement is fixedly mounted at the bottom of the slider (3). The cable is movably mounted in the guide ring (4). A limiting component (6) for adjusting cable length is provided on the fixed arm (21). The limiting component (6) includes a vertical airbag (61) fixedly provided on the fixed arm (21). When the slider (3) moves to the end of the fixed arm (21), the length of the vertical airbag (61) becomes shorter. When the slider (3) is located at one end of the inner side of the rotating arm (22), the cable can slide along the inner diameter of the guide ring (4). A bending assembly (5) for driving the rotating arm (22) to rotate is provided between the rotating arm (22) and the fixed arm (21). The bending assembly (5) includes an arc-shaped guide frame (51) fixedly mounted on the fixed arm (21). A movable frame (52) is slidably mounted inside the guide frame (51), and the guide frame (51) is based on the rotation axis of the rotating arm (22) and the fixed arm (21). The guide frame (51) is provided with an arc-shaped airbag (53) for driving the moving frame (52) to move. The fixed arm (21) is symmetrically provided with two wedge-shaped airbags (54) for supplying air to the arc-shaped airbag (53). The two wedge-shaped airbags (54) are arranged in a V-shape. Locking elements are provided on the two wedge-shaped airbags (54). One end of the vertical airbag (61) is fixed to the cable, and the other end is fixed to the fixed arm (21). A guide spring (62) for guiding the movement of the vertical airbag (61) is also provided between the cable and the fixed arm (21). A telescopic guide rod is provided inside the guide spring (62). An air supply assembly (7) for supplying air to the vertical airbag (61) is also provided between the rotating arm (22) and the fixed arm (21). The guide ring (4) is provided with a traction component (8) for cable traction. The traction component (8) includes two friction wheels (81) symmetrically rotated in the guide ring (4). The guide ring (4) is provided with a reversing gearbox (83) that is connected to one of the friction wheels (81) in a transmission. The input end of the reversing gearbox (83) is provided with a drive motor (82). A compression spring (84) is fixedly provided on one side of the slider (3). An electrode plate (85) is provided in the compression spring (84). The electrode plate (85) includes a positive electrode and a negative electrode. The negative electrode and the positive electrode are respectively provided at both ends of the compression spring (84).

2. The charging pile swing arm device as described in claim 1, characterized in that: The locking component includes a magnetic absorbing piece (55) disposed on the wedge-shaped airbag (54), and another magnetic absorbing piece (55) disposed on the inner wall of the fixing arm (21). The two magnetic absorbing pieces (55) are magnetically attracted to each other, and an inclined paddle (56) for separating the two magnetic absorbing pieces (55) is disposed on both sides of the slider (3).

3. The charging pile swing arm device as described in claim 1, characterized in that: The air supply assembly (7) includes a piston tube (71) hinged to a fixed arm (21) and a piston tube (71) hinged to a rotating arm (22), and a piston rod (72) is slidably disposed inside the piston tube (71). The piston tube (71) communicates with the vertical airbag (61).

4. The charging pile swing arm device as described in claim 1, characterized in that: A reset spring (9) is fixedly installed on the other side of the slider (3), and one end of the reset spring (9) is fixedly installed on one side of the inner wall of the track (23).

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