Charging pile swing arm device and charging pile

Abstract

The utility model provides a charging pile swing arm device and a charging pile, the charging pile swing arm device comprises a base, the top surface of the base is provided with a first bearing; the first end of the main shaft is connected with the base, and the main shaft is configured to rotate in the base; the coil spring balancer is connected with the second end of the main shaft, and an abutting structure abutting against the first bearing is arranged at the bottom of the coil spring balancer; and the swing arm is connected with the coil spring balancer, and when the swing arm swings, the coil spring balancer is driven to rotate so as to drive the main shaft to rotate. According to the charging pile swing arm device and the charging pile, the coil spring balancer is arranged at the second end of the main shaft, the coil spring balancer can increase the effective length of the gun line, waste of the length of the gun line is reduced, and the user experience is improved.

Description

Technical Field

[0001] This application relates to the technical field of charging pile cable retraction devices, and in particular to a charging pile swing arm device and a charging pile. Background Technology

[0002] A charging cable assisted retrieval system is a user-friendly structural device that assists in pulling out and retrieving the charging cable, which is necessary due to its weight and length. Currently, the market commonly uses single auxiliary devices such as spring balancers or swing arms. These devices share several common drawbacks: a single spring balancer or swing arm mechanism is sufficient for short charging cables, but inconvenient for longer cables; due to the weight of the charging cable and the height limitations of the charging station, a single spring balancer can only handle the cable's extension and retraction lengths, and excessively long cables will rub against the ground, affecting its lifespan; when the charging cable is far from the charging station, a large amount of force is required, impacting the user experience.

[0003] Therefore, it is desirable to provide a charging pile swing arm device that can automatically reset the charging cable and swing arm after use, thereby avoiding wear and tear on the charging cable on the ground, reducing waste of charging cable length, and improving user experience. Utility Model Content

[0004] The technical problem this application aims to solve is that: currently available swing arm devices do not have an automatic reset function, and the gun wire is prone to wear on the ground after being pulled out.

[0005] This application provides a charging pile swing arm device, including: a base, on the top surface of which a first bearing is provided; a main shaft, the first end of which is connected to the base and configured to rotate within the base; a coil spring balancer, the second end of which is connected to the main shaft and has an abutment structure at its bottom that abuts against the first bearing; and a swing arm, which is connected to the coil spring balancer, and when the swing arm swings, it drives the coil spring balancer to rotate, thereby driving the main shaft to rotate.

[0006] In some embodiments of this application, a second bearing is provided at the first end of the spindle.

[0007] In some embodiments of this application, the bottom of the base includes a bearing housing for accommodating the second bearing.

[0008] In some embodiments of this application, the coil spring balancer includes a housing, inside which a first coil spring is disposed. The outer ring hook of the first coil spring is hung on the balancer winding spool, and the inner ring hook of the first coil spring is hung on the balancer fixed shaft.

[0009] In some embodiments of this application, the bottom of the housing of the coil spring balancer is sleeved with the second end of the main shaft, and the bottom of the housing of the coil spring balancer and the second end of the main shaft are fixedly connected by a fixing connector.

[0010] In some embodiments of this application, the second end of the spindle has an extension that extends outwards, and the bottom of the housing of the coil spring balancer is nested with the extension of the second end of the spindle and fixedly connected by a fixing connector.

[0011] In some embodiments of this application, the abutment structure at the bottom of the housing of the coil spring balancer is located below the extension of the second end of the main shaft, and the fixed connector passes through the extension and the abutment structure to achieve a fixed connection.

[0012] In some embodiments of this application, the balancer fixing shaft extends out of the housing of the coil spring balancer and is axially embedded into the main shaft from the second end of the main shaft and fixedly connected to the main shaft.

[0013] In some embodiments of this application, the first end of the swing arm is connected to the housing of the coil spring balancer along the tangential direction of the housing, and the second end of the swing arm is provided with a pulley assembly.

[0014] In some embodiments of this application, the outer shell of the coil spring balancer is provided with a connecting portion in the tangential direction to accommodate the first end of the swing arm, and the first end of the swing arm is sleeved on the connecting portion and then fixed from the side wall by a fastener.

[0015] In some embodiments of this application, the pulley assembly includes a pulley mounting plate and a plurality of pulleys disposed on the pulley mounting plate. The pulley mounting plate is fixedly connected to a fourth bearing at the second end of the swing arm via a mounting portion, and the mounting portion is configured to rotate via the fourth bearing.

[0016] In some embodiments of this application, the swing arm is hollow inside, and the cable for suspending the charging gun cable is hung on the several pulleys and passes through the swing arm to connect with the balancer winding reel.

[0017] In some embodiments of this application, the plurality of pulleys have grooves for receiving the rope.

[0018] In some embodiments of this application, the sidewall of the spindle has a stepped structure, and the protruding portion of the stepped structure is located on the inner side of the third bearing and is supported by the inner side of the third bearing.

[0019] In some embodiments of this application, the swing arm includes a main arm connected to the main shaft and a secondary arm connected to the main arm. The main arm is provided with a first connector, and the secondary arm is provided with a second connector. The first connector is connected to the second connector via a joint axis, and the second connector is configured to rotate via the joint axis and drive the secondary arm to rotate around the main arm.

[0020] In some embodiments of this application, the first connector includes a first annular body and a second annular body fitted onto the joint shaft.

[0021] In some embodiments of this application, a pulley structure is also sleeved on the joint shaft, and the pulley structure is sleeved on the joint shaft via a seventh bearing.

[0022] In some embodiments of this application, the pulley structure is located between the first annular body and the second annular body.

[0023] In some embodiments of this application, a bearing cover plate for fixing the joint shaft is provided on the top of the joint shaft.

[0024] This application also provides a charging pile, including: a charging pile body; a charging pile swing arm device as described above, installed on the charging pile body; a charging gun, wherein the gun wire of the charging gun is connected to the cable of the charging pile swing arm device through a cable clamp holding one end of the gun wire.

[0025] The charging pile swing arm device provided in this application embodiment has a coil spring balancer set at the second end of the main shaft. The coil spring balancer can increase the effective length of the charging cable, reduce the waste of the charging cable length, and improve the user experience. Attached Figure Description

[0026] The following accompanying drawings describe in detail the exemplary embodiments disclosed in this application. The same reference numerals denote similar structures in several views of the drawings. Those skilled in the art will understand that these embodiments are non-limiting and exemplary, and the drawings are for illustrative purposes only and are not intended to limit the scope of this application. Other embodiments may similarly fulfill the intent of this application. It should be understood that the drawings are not drawn to scale.

[0027] in:

[0028] Figure 1 This is a schematic diagram of the overall structure of the charging pile swing arm device according to some embodiments of this application;

[0029] Figure 2 This is a longitudinal cross-sectional view of the base and coil spring balancer of the charging pile swing arm device according to some embodiments of this application;

[0030] Figure 3This is a schematic diagram of the base structure of the charging pile swing arm device according to some embodiments of this application;

[0031] Figure 4 This is a schematic diagram of the second end structure of the swing arm of the charging pile swing arm device according to some embodiments of this application;

[0032] Figure 5 This is an exploded view of the second end structure of the swing arm of the charging pile swing arm device according to some embodiments of this application;

[0033] Figure 6 This is a schematic diagram of the structure of a charging pile according to some embodiments of this application;

[0034] Figure 7 This is a schematic diagram of the overall structure of the charging pile swing arm device according to other embodiments of this application;

[0035] Figure 8 This is a schematic diagram of the connection structure between the main arm and the auxiliary arm of the charging pile swing arm device according to other embodiments of this application. Detailed Implementation

[0036] The following description provides specific application scenarios and requirements for this application, intended to enable those skilled in the art to make and use the content of this application. Various partial modifications to the disclosed embodiments will be apparent to those skilled in the art, and the general principles defined herein can be applied to other embodiments and applications without departing from the spirit and scope of this application. Therefore, this application is not limited to the embodiments shown, but rather to the widest scope consistent with the claims.

[0037] The technical solution of this application will be described in detail below with reference to the embodiments and accompanying drawings.

[0038] Figure 1 This is a schematic diagram of the overall structure of the charging pile swing arm device according to some embodiments of this application. Figure 2 This is a longitudinal cross-sectional view of the base and coil spring balancer of the charging pile swing arm device according to some embodiments of this application. Figure 3 This is a schematic diagram of the base structure of the charging pile swing arm device according to some embodiments of this application.

[0039] refer to Figures 1 to 3As shown, some embodiments of this application provide a charging pile swing arm device, including: a base 01, the top surface of which is provided with a top cover 02 and a first bearing 011 located on the outer ring of the top cover 012; a second coil spring 04, disposed inside the base 01, the outer end of the second coil spring 04 being connected to the base 01; a main shaft 02, a portion of which is connected to the inner end of the second coil spring 04, the main shaft 02 being configured to drive the second coil spring 04 to tighten or be controlled by the second coil spring 04 when rotating in a first direction. The restoring force of the second spring 4 drives the main shaft 02 to rotate in the second direction; the spring balancer 05 is connected to the second end of the main shaft 02; the swing arm 03 is connected to the spring balancer 05. When the swing arm 03 swings in the first direction, it drives the spring balancer 05 and thus drives the main shaft 02 to rotate in the first direction, or when the restoring force of the second spring 04 drives the main shaft 02 to rotate in the second direction, it drives the spring balancer 05 and the swing arm 03 to swing in the second direction.

[0040] Figure 7 This is a schematic diagram of the overall structure of the charging pile swing arm device according to other embodiments of this application. Figure 8 This is a schematic diagram of the connection structure between the main arm and the auxiliary arm of the charging pile swing arm device according to other embodiments of this application.

[0041] Figure 1 The examples shown are some implementations with only a single-stage swing arm. Figure 7 and Figure 8 These are some other embodiments featuring a two-stage swing arm. Specifically, refer to... Figure 7 and Figure 8 As shown, the swing arm 03 includes a main arm 061 connected to the main shaft and a secondary arm 062 connected to the main arm 061. A first connecting member 07 is provided on the main arm 061, and a second connecting member 08 is provided on the secondary arm 062. The first connecting member 07 is connected to the second connecting member 08 through a joint shaft 071. The second connecting member 08 is configured to rotate through the joint shaft 071 and drive the secondary arm 062 to rotate around the main arm 061, with a rotation angle range of 0-180 degrees.

[0042] In other embodiments of this application, a fifth bearing 081 and a sixth bearing 082 are respectively provided at the first and second ends of the joint shaft 071, and the fifth bearing 081 and the sixth bearing 082 are respectively disposed at the upper and lower ends of the second connecting member 08. The joint shaft 071 is fixed and achieves rotation function by the fifth bearing 081 and the sixth bearing 082.

[0043] In some other embodiments of this application, a bearing cover plate 063 is provided on the top of the joint shaft 071 to fix the joint shaft 071 and the fifth bearing 081. The bearing cover plate 063 can be installed on the second connector 08 by screws.

[0044] In some other embodiments of this application, the first connector 07 includes a first annular body 084 and a second annular body 085 sleeved on the joint shaft 071. The first connector 07 is fixedly connected to the joint shaft 071 through the first annular body 084 and the second annular body 085.

[0045] In some other embodiments of this application, a pulley structure 073 is also fitted onto the joint shaft 071, and the pulley structure 073 is fitted onto the joint shaft 071 via a seventh bearing 083. The pulley structure 073 is used for passing ropes. The ropes passing through the main arm 061 and the auxiliary arm 062 are wound around the pulley structure 073 for easy cable routing. The pulley structure 073 has a groove for accommodating the ropes.

[0046] In some other embodiments of this application, the pulley structure 073 is positioned between the first annular body 084 and the second annular body 085, thereby limiting the axial displacement of the rope.

[0047] In some other embodiments of this application, the auxiliary arm 062 is connected to the main arm 061 via a torsion spring 072. The torsion spring 072 is nested in the second annular body 085 of the first connecting member 07 of the main arm 061, and the two ends of the torsion spring 072 are respectively connected to the main arm 061 and the auxiliary arm 062. When the auxiliary arm 062 rotates, it causes the torsion spring 072 to tighten, and when not in use, it returns to its original position under the action of the elastic force of the torsion spring 072.

[0048] The above illustrates two embodiments of the technical solution of this application, one with a primary swing arm and the other with a secondary swing arm. However, those skilled in the art should understand that the technical solution of this application is not limited to these embodiments, and the swing arm may have more stages.

[0049] refer to Figure 2 and Figure 3 As shown, the base 01 is an irregularly shaped part. The base 01 has a spring mounting compartment inside, and the inner wall of the spring mounting compartment has a slot. The outer end of the second spring 04 is hooked onto the slot to restrict rotation. The inner end of the second spring 04 is hooked to the main shaft 02. The rotation of the main shaft 02 adjusts the preload of the second spring 04. Specifically, rotating the main shaft 02 causes the second spring 04 to generate a preload torque, thereby generating a corresponding preload at the free end of the swing arm pulling the gun line. The inner wall of the base 01 extends inward to form an extension section.

[0050] In some embodiments of this application, a second bearing 021 is provided at the first end of the main shaft 02, and the main shaft 02 rotates via the second bearing 021. A third bearing 022 is also provided on the side wall of the main shaft 02, which also assists in the rotation of the main shaft 02. The bottom outer side of the third bearing 022 is supported by an extension extending from the inner wall of the base 01.

[0051] In some embodiments of this application, the sidewall of the spindle 02 has a stepped structure 023, and the protruding portion of the stepped structure 023 is located on the inner side of the third bearing 022 and is supported by the inner side of the third bearing 022.

[0052] In some embodiments of this application, the bottom of the base 01 includes a bearing seat for accommodating the second bearing 021.

[0053] The working process of the charging pile swing arm device is as follows: When the charging gun is not in use, the second coil spring 04 is set with an initial preload, specifically, the second coil spring 04 is set with an initial preload torque. The swing arm 03, with the charging gun cable suspended at its free end, is restricted to an initial position defined by the positioning block or buffer block by this initial preload torque. When the user uses the charging gun, since the charging gun cable is connected to the swing arm 03 of the charging pile swing arm device, using the charging gun will cause the swing arm 03 to swing, thereby causing the coil spring balancer 05 and the main shaft 02 to rotate, which in turn causes the second coil spring 04 to tighten. After the charging gun is used, the second coil spring 04 relaxes under the action of the tightening force, causing the main shaft 02 to rotate, which in turn causes the coil spring balancer 05 and the swing arm 03 to swing, thereby achieving the automatic reset of the swing arm 03.

[0054] Most swing arms currently on the market lack a reset function, preventing the cable from retracting after being extended, leading to cable dragging and wear on the ground. The technical solution presented in this application achieves automatic reset of the swing arm and cable through the cooperation of a coil spring and a main shaft, offering greater flexibility in space utilization and cable arrangement. Furthermore, the structure allows for pre-tensioning by rotating the main shaft before use, enabling the reset force to be pre-adjusted for cables of different lengths and weights, ensuring the cable automatically returns to its starting point after use and guaranteeing orderly cable suspension on site.

[0055] refer to Figure 3 As shown, in some embodiments of this application, the base 01 is provided with an installation structure 013 for mounting the base 01 onto the charging pile body.

[0056] refer to Figure 3 As shown, in some embodiments of this application, the base 01 is provided with a limiting structure 014 for limiting the rotation angle of the coil spring balancer 05.

[0057] refer to Figure 2As shown, in some embodiments of this application, the coil spring balancer 05 includes a housing 051; a second coil spring 052 is disposed inside the housing 051, the outer ring hook of the second coil spring 052 is hung on the balancer winding reel 054, and the inner ring hook of the second coil spring 052 is hung on the balancer fixing shaft 053. A wire 056 for connecting the gun wire is wound and connected on the balancer winding reel 054.

[0058] refer to Figure 2 As shown, the bottom of the outer shell 051 of the coil spring balancer 05 is sleeved with the second end of the main shaft 02, and the bottom of the outer shell 051 of the coil spring balancer 05 is fixedly connected to the second end of the main shaft 02 by a fixing connector 012. The fixing connector 012 is, for example, a screw. Specifically, the second end of the main shaft 02 has an extension that extends outwards, making the main shaft 02 generally T-shaped (the horizontal parts on both sides of the T are the extensions). The fixing connector 012 passes through the extension of the second end of the main shaft 02 and the bottom of the coil spring balancer 05. The bottom of the outer shell of the coil spring balancer 05 is nested with the extension of the second end of the main shaft 02 and then fixedly connected by the fixing connector 012. Specifically, the abutment structure 055 at the bottom of the housing of the coil spring balancer 05 is located below the extension of the second end of the main shaft 02 and fits against the extension (the bottom of the housing of the coil spring balancer 05 is fitted with the extension through the abutment structure 055), and the fixed connector 012 passes through the extension and the abutment structure to achieve a fixed connection.

[0059] refer to Figure 2 As shown, in some embodiments of this application, the balancer fixing shaft 053 extends out of the housing 051 of the coil spring balancer 05 and is axially embedded in the main shaft 02 from the second end of the main shaft 02 and fixedly connected to the main shaft 02.

[0060] refer to Figure 2 As shown, in some embodiments of this application, the bottom of the coil spring balancer 05 is provided with an abutment structure 055 that abuts against the first bearing 011. A portion of the abutment structure 055 abuts against the first bearing 011, and another portion abuts against the top of the bottom 01. The coil spring balancer 05 is connected to the first bearing 011 through the abutment structure 055 and rotates relative to the base 01 through the first bearing 011. In the technical solution of this application, the base 01 supports the coil spring balancer 05 through the second end of the main shaft 02 and the first bearing 011, resulting in a large bearing area, a more stable structure, and smoother rotation of the coil spring balancer 05.

[0061] refer to Figure 1 and Figure 2As shown, in some embodiments of this application, the first end of the swing arm 03 is sleeved with the outer shell 051 of the coil spring balancer 05 along the tangential direction of the outer shell. Specifically, a connecting portion 059 for accommodating the first end of the swing arm 03 is provided along the tangential direction of the outer shell of the coil spring balancer 05. The first end of the swing arm 03 is sleeved on the connecting portion 059 and then fixed from the side wall by a fastener. The connection of the swing arm 03 with the outer shell of the coil spring balancer 05 along the tangential direction of the outer shell ensures that the direction of the swing arm 03 is always parallel to the direction of the line exiting the coil spring balancer 05 without any auxiliary mechanisms, thereby reducing the loss of tension when the line is pulled back. It should be noted that conventional connecting components between the surface of the base shell and the surface of the coil spring balancer shell, such as washers and screws, are common knowledge in the art and are therefore omitted here without detailed description. However, those skilled in the art can install the surface of the base shell and the surface of the coil spring balancer shell using common knowledge.

[0062] Figure 4 This is a schematic diagram of the second end structure of the swing arm of the charging pile swing arm device according to some embodiments of this application. Figure 5 This is an exploded view of the second end structure of the swing arm of the charging pile swing arm device according to some embodiments of this application.

[0063] refer to Figure 1 and Figure 4 As shown, in some embodiments of this application, a pulley assembly 031 is provided at the second end of the swing arm 03. The pulley assembly 031 is detachably connected to the swing arm 03, facilitating repair and replacement.

[0064] In some embodiments of this application, the pulley assembly 031 includes a pulley mounting plate 032 and a plurality of pulleys 034 disposed on the pulley mounting plate 032. The pulley mounting plate 032 is fixedly connected to a fourth bearing 036 at the second end of the swing arm 03 via a mounting part 033. The mounting part 033 is configured to rotate in the fourth bearing 036.

[0065] Specifically, refer to Figure 5As shown, the plurality of pulleys 034 are mounted on the pulley mounting plate 032 by paired screw assemblies 0341. Each pulley 034 has a pulley bushing 0342 on both sides to prevent axial sliding. The screw assembly 0341 passes through the pulley bushing 0342 and the pulley 034. The fourth bearing 036 is mounted on a bearing housing 035. The mounting portion 033 has threads and is fixed by a retaining ring 037 with threads on its inner wall after passing through the fourth bearing 036. The bearing housing 035 is mounted to the second end of the rocker arm 03 by a plurality of screws 0351. The fourth bearing 036 is also limited by a bearing washer 038. The bearing washer 038 is mounted to the bearing housing 035 by a plurality of screws 0381.

[0066] In some embodiments of this application, the swing arm 03 is hollow inside, and the cable 056 for suspending the charging gun cable is hung on the plurality of pulleys 032 and passes through the swing arm 03 to connect with the balancer winding reel 054. The plurality of pulleys 034 have grooves to accommodate the cable and prevent the cable from falling off.

[0067] In the technical solution of this application, by pulling the cord 056, the balancer winding disc 054 can overcome the resistance of the second coil spring 052 and rotate around the balancer fixed shaft 053. When the cord 056 is released, the cord 056 can automatically wind back to the initial position through the elastic force of the second coil spring 052.

[0068] The charging pile swing arm device of this application is equipped with a coil spring balancer 05. The cable 056 suspending the charging gun is connected to the coil spring balancer 05 and the coil spring balancer 05 controls the cable length, allowing the cable 056 to be laid out to connect the vehicle and the charging gun according to the user's needs. After charging is completed and the charging gun is disconnected from the vehicle, the cable 056 automatically returns to its original position. Before use, the coil spring balancer 05 can be pre-adjusted with a return force based on the actual length and weight of the charging gun, ensuring that the cable length automatically returns to the initial length after use, guaranteeing orderly suspension of the charging gun on site. Before use, the position of the cable installed on the charging gun and the initial length of the cable can be pre-adjusted based on the actual length and weight of the charging gun.

[0069] Figure 6 This is a schematic diagram of the structure of a charging pile according to some embodiments of this application.

[0070] This application also provides a charging pile, for reference. Figure 6As shown, it includes: a charging pile body 100; a charging pile swing arm device 200 as described above, installed on the charging pile body 100 (specifically, for example, the top); a charging gun (not shown in the figure), the gun wire of the charging gun being connected to the cable 056 of the charging pile swing arm device 200 through a cable clamp holding one end of the gun wire.

[0071] The charging pile provided in this application embodiment adopts the charging pile swing arm device described in this application embodiment. The cable 056 for suspending the charging gun is connected to the coil spring balancer 05, and the coil spring balancer 05 controls the cable length. This allows the cable 056 to be laid out to connect the vehicle and the charging gun according to the user's needs, and the cable 056 automatically returns to its original position after the charging gun is disconnected from the vehicle. Before use, the coil spring balancer 05 can be pre-adjusted with a return force based on the actual length and weight of the charging gun, so that the cable length can automatically return to the initial length after use, ensuring orderly suspension of the charging gun on site. Before use, the position of the cable installed on the charging gun and the initial length of the cable can be pre-adjusted based on the actual length and weight of the charging gun.

[0072] The basic concepts have been described above. Obviously, for those skilled in the art, the detailed disclosure above is merely illustrative and does not constitute a limitation of this specification. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this application. Such modifications, improvements, and corrections are suggested in this specification, and therefore remain within the spirit and scope of the exemplary embodiments of this application.

[0073] It should be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; a mechanical connection or an electrical connection; a rotating connection or a sliding connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application in light of the specific circumstances.

[0074] Furthermore, when the terms "first," "second," "third," etc., are used in this application specification to describe various features, these terms are only used to distinguish these features and should not be construed as indicating or implying the correlation or relative importance between features or implicitly indicating the number of features indicated.

[0075] In addition, this application specification describes exemplary embodiments by referring to idealized exemplary cross-sectional views and / or plan views and / or perspective views. Therefore, differences from the illustrated shapes are foreseeable due to factors such as manufacturing techniques and / or tolerances. Therefore, exemplary embodiments should not be construed as limited to the shapes of the regions shown herein, but should include deviations in shape caused, for example, by manufacturing processes. Thus, the regions shown in the figures are substantially schematic, and their shapes are not intended to illustrate the actual shapes of the regions of the device, nor to limit the scope of the exemplary embodiments.

[0076] Furthermore, this application uses specific terms to describe embodiments of this specification. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic related to at least one embodiment of this application. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this application do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this application can be appropriately combined.

[0077] Similarly, it should be noted that, in order to simplify the description of the present application and thus aid in the understanding of one or more embodiments, the foregoing description of the embodiments of the present application sometimes combines multiple features into a single embodiment, drawing, or description thereof. However, this disclosure method does not imply that the subject matter of the present application requires more features than those mentioned in the claims. In fact, the embodiments contain fewer features than all the features of the single embodiments disclosed above.

[0078] Finally, it should be understood that the embodiments described in this application are merely illustrative of the principles of the embodiments of this application. Other modifications may also fall within the scope of this application. Therefore, alternative configurations of the embodiments of this application are considered as examples and not limitations, and are regarded as consistent with the teachings of this application. Accordingly, the embodiments of this application are not limited to the embodiments explicitly described and illustrated in this application.

Claims

1. A charging pile swing arm device, characterized in that, include: A base, wherein a first bearing is provided on the top surface of the base; A spindle, the first end of which is connected to the base, the spindle being configured to rotate within the base; A coil spring balancer is connected to the second end of the main shaft, and the bottom of the coil spring balancer is provided with an abutment structure that abuts against the first bearing. The swing arm is connected to the coil spring balancer. When the swing arm swings, it drives the coil spring balancer to rotate, which in turn drives the main shaft to rotate.

2. The charging pile swing arm device according to claim 1, characterized in that, A second bearing is provided at the first end of the main shaft.

3. The charging pile swing arm device according to claim 1, characterized in that, The coil spring balancer includes a housing, inside which a first coil spring is provided. The outer ring hook of the first coil spring is hung on the balancer winding spool, and the inner ring hook of the first coil spring is hung on the balancer fixed shaft.

4. The charging pile swing arm device according to claim 3, characterized in that, The bottom of the outer shell of the coil spring balancer is sleeved with the second end of the main shaft, and the bottom of the outer shell of the coil spring balancer is fixedly connected to the second end of the main shaft by a fixed connector.

5. The charging pile swing arm device according to claim 4, characterized in that, The second end of the main shaft has an extension that extends outwards. The bottom of the housing of the coil spring balancer is nested with the extension of the second end of the main shaft and then fixedly connected by a fixing connector.

6. The charging pile swing arm device according to claim 4, characterized in that, The balancer fixed shaft extends out of the housing of the coil spring balancer and is axially embedded into the main shaft from the second end of the main shaft, and is fixedly connected to the main shaft.

7. The charging pile swing arm device according to claim 4, characterized in that, The first end of the swing arm is connected to the housing of the coil spring balancer along the tangential direction of the housing, and the second end of the swing arm is provided with a pulley assembly.

8. The charging pile swing arm device according to claim 7, characterized in that, The pulley assembly includes a pulley mounting plate and a plurality of pulleys disposed on the pulley mounting plate. The pulley mounting plate is fixedly connected to a fourth bearing at the second end of the swing arm via a mounting part, and the mounting part is configured to rotate via the fourth bearing.

9. The charging pile swing arm device according to claim 1, characterized in that, The sidewall of the spindle has a stepped structure, and the protruding part of the stepped structure is located on the inner side of the third bearing and is supported by the top of the inner side of the third bearing.

10. A charging pile, characterized in that, include: The charging pile itself; The charging pile swing arm device as described in any one of claims 1-9 is installed on the charging pile body; The charging gun has its charging cable connected to the cable of the charging pile swing arm device via a cable clamp that holds one end of the charging cable.

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