A charging pile swing arm device and a charging pile

Abstract

This application provides a charging pile swing arm device and a charging pile. The charging pile swing arm device includes: a base; a main shaft, the main shaft including a first part and a second part, the first part being connected to the base, and the main shaft being configured to rotate within the base; a coil spring balancer, the coil spring balancer being connected to the second part of the main shaft; and a swing arm, the swing arm being connected to the coil spring balancer, the swing arm swinging to drive the coil spring balancer to rotate, thereby driving the main shaft to rotate. The charging pile swing arm device and charging pile provided in this application embodiment have a coil spring balancer provided at the second end of the main shaft. The coil spring balancer can increase the effective length of the charging cable, reduce cable waste, and improve the user experience.

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 cable-assisted retrieval system is a user-friendly structural device that assists in pulling out and retrieving cables due to their large weight and length. Currently, commonly used auxiliary devices on the market include spring balancers and swing arms. However, this adjustment method has several drawbacks: 1) Spring balancers, due to the increasing force of the spring and the influence of the spring material itself, have significant disadvantages for heavy and long cables. When the balancer rope is pulled out to the end, the user experiences considerable tension, failing to achieve the goal of improving user experience. Furthermore, the pull-out rope length of spring balancers is limited, which is unfriendly to cable manufacturers; 2) Most swing arms on the market do not have a reset function, preventing the cable from being retrieved to the starting point after being pulled out. The cable is prone to dragging and wearing down on the ground. Additionally, most existing swing arms are less than 1 meter long, resulting in significant waste of cable length; 3) The length of the swing arm rope on the market is fixed, limiting the effective length of the cable used when pulled out.

[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; a main shaft, the main shaft including a first part and a second part, the first part being connected to the base, the main shaft being configured to rotate in the base; a coil spring balancer, the coil spring balancer being connected to the second part of the main shaft; and a swing arm, the swing arm being connected to the coil spring balancer, the swing arm swinging to drive the coil spring balancer to rotate, thereby driving the main shaft to rotate.

[0006] In some embodiments of this application, a bearing is provided on the first part of the spindle, and a retaining ring is provided on the second part of the spindle.

[0007] In some embodiments of this application, the bottom of the base includes a bearing seat for accommodating the bearing, and the top of the interior of the base is provided with a fixing groove for accommodating the fixing ring.

[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 part of the main shaft, and the bottom of the housing of the coil spring balancer and the second part of the main shaft are fixedly connected by a fixing connector.

[0010] In some embodiments of this application, the balancer fixing shaft extends out of the housing of the coil spring balancer and is axially embedded in the second part of the main shaft and fixedly connected to the second part of the main shaft.

[0011] 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.

[0012] 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 bearing at the second end of the swing arm via a mounting shaft, and the mounting shaft is configured to rotate in the bearing.

[0013] 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.

[0014] 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.

[0015] 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

[0016] 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.

[0017] in:

[0018] 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;

[0019] Figure 2 This is an exploded view of a charging pile swing arm device according to some embodiments of this application;

[0020] Figure 3 This is an exploded view of the base and coil spring balancer of the charging pile swing arm device according to some embodiments of this application;

[0021] Figure 4 This is a first longitudinal section view of the base and coil spring balancer of the charging pile swing arm device according to some embodiments of this application;

[0022] Figure 5 This is a second longitudinal section view of the base and coil spring balancer of the charging pile swing arm device according to some embodiments of this application;

[0023] Figure 6 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;

[0024] Figure 7 This is an exploded view of the pulley assembly of the charging pile swing arm device according to some embodiments of this application;

[0025] Figure 8 This is a schematic diagram of the structure of a charging pile according to some embodiments of this application. Detailed Implementation

[0026] 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.

[0027] The technical solution of this application will be described in detail below with reference to the embodiments and accompanying drawings.

[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. Figure 2 This is an exploded view of a charging pile swing arm device according to some embodiments of this application. Figure 3 This is an exploded view of the base and coil spring balancer of the charging pile swing arm device according to some embodiments of this application. Figure 4This is a first longitudinal section view of the base and coil spring balancer of the charging pile swing arm device according to some embodiments of this application. Figure 5 This is a second longitudinal section view of the base and coil spring balancer of the charging pile swing arm device according to some embodiments of this application.

[0029] refer to Figures 1 to 5 As shown, some embodiments of this application provide a charging pile swing arm device, including: a base 01; 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, the main shaft 02 including a first part and a second part, the first part of the main shaft 02 being 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 when rotating in a first direction or to be driven to rotate in a second direction by the restoring force of the second coil spring 04; a coil spring balancer 05, the coil spring balancer 05 being connected to the second part of the main shaft 02; a swing arm 03, the swing arm 03 being connected to the coil spring balancer 05, the swing arm 03 swinging in the first direction causing the coil spring balancer 05 to drive the main shaft 02 to rotate in the first direction, or the restoring force of the second coil spring 04 driving the main shaft 02 to rotate in the second direction causing the coil spring balancer 05 and the swing arm 03 to swing in the second direction.

[0030] refer to Figure 3 and Figure 4 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 hook-connected to the first part of 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's traction gun line.

[0031] In some embodiments of this application, the diameter of the first portion of the spindle 02 is smaller than the diameter of the second portion of the spindle 02.

[0032] In some embodiments of this application, a bearing 021 is provided on the first part of the spindle 02, and a retaining ring 011 is provided on the second part of the spindle 02. The bearing 021 and the retaining ring 011 together fix the spindle 02.

[0033] In some embodiments of this application, the bottom of the base 01 includes a bearing seat for accommodating the bearing 021, and the top of the interior of the base 01 is provided with a fixing groove for accommodating the fixing ring 011.

[0034] 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.

[0035] 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.

[0036] refer to Figure 3 and Figure 4 As 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 rope 055 for connecting the gun wire is wound and connected on the balancer winding reel 054.

[0037] refer to Figure 4 As shown, the bottom of the outer shell 051 of the coil spring balancer 05 is sleeved with the second part of the main shaft 02, and the bottom of the outer shell 051 of the coil spring balancer 05 and the second part of the main shaft 02 are fixedly connected by a fixing connector 012. The fixing connector 012 is, for example, a screw that passes radially through the outer shell 051 and the main shaft 02.

[0038] refer to Figure 4 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 second part of the main shaft 02 from the second part of the main shaft 05 and is fixedly connected to the second part of the main shaft 02.

[0039] refer to Figure 4 and 5As 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 of the coil spring balancer 05 and fixed by the fixing member 039 (specifically, the outer shell 051 is provided with a connecting part to accommodate the first end of the swing arm 03, and the first end of the swing arm 03 is sleeved on the connecting part and then fixed from the side wall by the fixing member 039). The connection between the swing arm 03 and the outer shell of the coil spring balancer 05 along the tangential direction of the outer shell of the coil spring balancer 05 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 mechanism, thereby reducing the loss of tension when the line is pulled back. It should be noted that the conventional connecting parts 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.

[0040] Figure 6 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 7 This is an exploded view of the pulley assembly of the charging pile swing arm device according to some embodiments of this application.

[0041] refer to Figure 6 and Figure 7 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.

[0042] 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 bearing 036 at the second end of the swing arm 03 via a mounting shaft 033. The mounting shaft 033 is configured to rotate in the bearing 036.

[0043] Specifically, 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 bearing 036 is mounted on a bearing housing 035. The mounting shaft 033 has threads and passes through the bearing 036 before being fixed by a retaining ring 037 with threads on its inner wall. The bearing housing 035 is mounted to the second end of the rocker arm 03 by a plurality of screws 0351. The 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.

[0044] In some embodiments of this application, the swing arm 03 is hollow inside, and the cable 055 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.

[0045] In the technical solution of this application, by pulling the cord 055, the balancer winding disc 054 can overcome the resistance of the second coil spring 052 and rotate around the balancer fixed shaft 053, and when the cord 055 is released, the cord 055 can automatically wind back to the initial position by the elastic force of the second coil spring 052.

[0046] The charging pile swing arm device of this application is equipped with a coil spring balancer 05. The cable 055 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 055 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 055 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 cable 055 can be pre-adjusted with a position on the charging gun and an initial cable length based on the actual length and weight of the charging gun.

[0047] Figure 8 This is a schematic diagram of the structure of a charging pile according to some embodiments of this application.

[0048] This application also provides a charging pile, for reference. Figure 8 As 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, the charging gun's gun wire 300 being connected to the charging pile swing arm device 200's wire 055 via a cable clamp 400 that holds one end of the gun wire 300.

[0049] The charging pile provided in this application embodiment adopts the charging pile swing arm device described in this application embodiment. The cable 055 suspending the charging gun is connected to the coil spring balancer 05, and the coil spring balancer 05 controls the cable length, so that the cable 055 can be laid out to connect the vehicle and the charging gun according to the user's needs, and the cable 055 automatically returns to its original position after the charging gun is disconnected from the vehicle after charging is completed. The coil spring balancer 05 can be pre-adjusted with a return force according to the actual length and weight of the charging gun before use, so that the cable length can be automatically returned to the initial length after the charging gun is pulled out, ensuring that the charging gun is suspended in an orderly manner on site. The cable 055 can be pre-adjusted with a position on the charging gun and an initial cable length according to the actual length and weight of the charging gun before use.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] 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: Base; A spindle, the spindle comprising a first part and a second part, the first part being connected to the base, the spindle being configured to rotate within the base; A coil spring balancer, wherein the coil spring balancer is connected to the second part of the main shaft; 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 bearing is provided on the first part of the main shaft, and a retaining ring is provided on the second part of the main shaft.

3. The charging pile swing arm device according to claim 2, characterized in that, The base includes a bearing seat at the bottom for accommodating the bearing, and a fixing groove for accommodating the fixing ring is provided at the top inside the base.

4. 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.

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

6. The charging pile swing arm device according to claim 5, characterized in that, The balancer fixed shaft extends out of the housing of the coil spring balancer and is axially embedded in the second part of the main shaft, and is fixedly connected to the second part of the main shaft.

7. The charging pile swing arm device according to claim 5, 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 bearing at the second end of the swing arm via a mounting shaft, and the mounting shaft is configured to rotate within the bearing.

9. The charging pile swing arm device according to claim 8, characterized in that, The swing arm is hollow inside, and the cable for suspending the charging gun cable is hung on several pulleys and passes through the swing arm to connect with the balancer winding reel.

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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