Charging pile swing arm device and charging pile

Abstract

The invention 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 wire retracting devices, and particularly to a charging pile swing arm device and a charging pile. Background Art

[0002] The gun line assisting recovery system refers to a user-friendly structural device that assists in pulling out and retracting the gun line due to the large self-weight and long length of the gun line. Currently, single auxiliary devices such as a coil spring balancer or a swing arm are commonly used in the market. These auxiliary devices have several common points: a single coil spring balancer or swing arm auxiliary mechanism is suitable for use when the charging line is short, but it is inconvenient to use when the gun line is long; due to the weight of the gun line and the height limitation of the charging pile, when the coil spring balancer alone retracts the outgoing line length, the gun line will rub against the ground when the gun line is too long, affecting its service life; when the charging line is far from the charging pile, a large force is required, affecting the user experience.

[0003] Therefore, it is desirable to provide a charging pile swing arm device that can automatically reset after the gun line and the swing arm are used, avoid the gun line from wearing on the ground, reduce the waste of the gun line length, and improve the user experience. Summary of the Invention

[0004] The technical problem to be solved by this application is that the swing arm devices on the market currently do not have an automatic reset function, and the gun line is prone to wear on the ground after being pulled out.

[0005] An embodiment of this application provides a charging pile swing arm device, including: a base, on the top surface of the base is provided a first bearing; a main shaft, the first end of the main shaft is connected to the base, and the main shaft is configured to rotate in the base; a coil spring balancer, the coil spring balancer is connected to the second end of the main shaft, and a contact structure that contacts the first bearing is provided at the bottom of the coil spring balancer; a swing arm, the swing arm is connected to the coil spring balancer, and when the swing arm swings, it drives the coil spring balancer to rotate and further drives the main shaft to rotate.

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

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

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

[0009] In some embodiments of the present 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 is fixedly connected to the second end of the main shaft through a fixing connector.

[0010] In some embodiments of the present application, the second end of the main shaft has an extension portion extending around, and the bottom of the housing of the coil spring balancer is nested with the extension portion of the second end of the main shaft and then fixedly connected through a fixing connector.

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

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

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

[0014] In some embodiments of the present application, a connecting portion for accommodating the first end of the swing arm is provided in the tangent direction of the housing of the coil spring balancer, and the first end of the swing arm is sleeved on the connecting portion and then fixed from the side wall through a fixing member.

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

[0016] In some embodiments of the present application, the swing arm is hollow inside, and the cord for hanging the charging gun cable is hung on the plurality of pulleys and passes through the swing arm to be connected to the balancer winding disc.

[0017] In some embodiments of the present application, the plurality of pulleys have grooves for accommodating the cord.

[0018] In some embodiments of the present application, the side wall of the main shaft has a stepped structure, and the protruding portion of the stepped structure is located inside the third bearing and is supported by the inside of the third bearing.

[0019] In some embodiments of the present application, the swing arm includes a main arm connected to the main shaft and a sub-arm connected to the main arm. A first connecting member is provided on the main arm, and a second connecting member is provided on the sub-arm. The first connecting member is connected to the second connecting member through a joint shaft, and the second connecting member is configured to rotate around the main arm by rotating through the joint shaft and drive the sub-arm to rotate around the main arm.

[0020] In some embodiments of the present application, the first connecting member includes a first annular body and a second annular body sleeved on the joint shaft.

[0021] In some embodiments of the present application, a pulley structure is further sleeved on the joint shaft, and the pulley structure is sleeved on the joint shaft through a seventh bearing.

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

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

[0024] The present application also provides a charging pile, including: a charging pile body; the charging pile swing arm device as described above, installed on the charging pile body; a charging gun, and the gun line of the charging gun is connected to the rope of the charging pile swing arm device through a cable clip that clamps one end of the gun line.

[0025] In the charging pile swing arm device provided by the embodiments of the present application, a coil spring balancer is provided at the second end of the main shaft. The coil spring balancer can increase the effective length of the gun line, reduce the waste of the gun line length, and improve the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The following drawings detail the exemplary embodiments disclosed in the present application. Wherein the same reference numerals represent similar structures in several views of the drawings. Those of ordinary skill in the art will understand that these embodiments are non-limiting, exemplary embodiments, and the drawings are only for the purpose of illustration and description, and are not intended to limit the scope of the present application. Embodiments in other ways may also achieve the application intention in the present application. It should be understood that the drawings are not drawn to scale.

[0027] Wherein:

[0028] Figure 1 is a schematic diagram of the overall structure of the charging pile swing arm device shown in some embodiments of the present application;

[0029] Figure 2 is a longitudinal sectional view of the base and the coil spring balancer of the charging pile swing arm device shown in some embodiments of the present application;

[0030] Figure 3It is a schematic structural view of the base of the charging pile swing arm device shown in some embodiments of the present application;

[0031] Figure 4 It is a schematic structural view of the second end of the swing arm of the charging pile swing arm device shown in some embodiments of the present application;

[0032] Figure 5 It is an exploded view of the structure of the second end of the swing arm of the charging pile swing arm device shown in some embodiments of the present application;

[0033] Figure 6 It is a schematic structural view of the charging pile shown in some embodiments of the present application;

[0034] Figure 7 It is a schematic overall structural view of the charging pile swing arm device shown in some other embodiments of the present application;

[0035] Figure 8 It is a schematic structural view of the connection between the main arm and the auxiliary arm of the charging pile swing arm device shown in some other embodiments of the present application. Detailed implementation manners

[0036] The following description provides specific application scenarios and requirements of the present application, aiming to enable those skilled in the art to manufacture and use the content of the present application. For those skilled in the art, various partial modifications to the disclosed embodiments are obvious, and the general principles defined here can be applied to other embodiments and applications without departing from the spirit and scope of the present application. Therefore, the present application is not limited to the shown embodiments, but has the broadest scope consistent with the claims.

[0037] The technical solution of the present application will be described in detail below in conjunction with the embodiments and the drawings.

[0038] Figure 1 It is a schematic overall structural view of the charging pile swing arm device shown in some embodiments of the present application. Figure 2 It is a longitudinal sectional view of the base and the spring balancer of the charging pile swing arm device shown in some embodiments of the present application. Figure 3 It is a schematic structural view of the base of the charging pile swing arm device shown in some embodiments of the present application.

[0039] Reference Figures 1 to 3As shown in the figure, some embodiments of the present application provide a charging pile swing arm device, including: a base 01, on the top surface of the base 01, there is a top cover 02 and a first bearing 011 located outside the outer ring of the top cover 012; a second coil spring 04, arranged inside the base 01, and the outer end of the second coil spring 04 is connected to the base 01; a main shaft 02, a part of the main shaft 02 is connected to the inner end of the second coil spring 04, and the main shaft 02 is configured to drive the second coil spring 04 to tighten when rotating in a first direction or 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 is connected to the second end of the main shaft 02; a swing arm 03, the swing arm 03 is connected to the coil spring balancer 05, when the swing arm 03 swings in the first direction, it drives the coil spring balancer 05, and then drives the main shaft 02 to rotate in the first direction, or when the restoring force of the second coil spring 04 drives the main shaft 02 to rotate in the second direction, it drives the coil spring balancer 05 and the swing arm 03 to swing in the second direction.

[0040] Figure 7 Fig. is the overall structural schematic diagram of the charging pile swing arm device according to some other embodiments of the present application. Figure 8 Fig. is the connection structural schematic diagram of the main arm and the sub-arm of the charging pile swing arm device according to some other embodiments of the present application.

[0041] Figure 1 Some embodiments shown are those with only one-stage swing arms. Figure 7 and Figure 8 Some other embodiments shown are those with two-stage swing arms. Specifically, referring to Figure 7 and Figure 8 As shown, the swing arm 03 includes a main arm 061 connected to the main shaft and a sub-arm 062 connected to the main arm 061. A first connecting member 07 is arranged on the main arm 061, and a second connecting member 08 is arranged on the sub-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 sub-arm 062 to rotate around the main arm 061, and the rotation angle range is 0 - 180 degrees.

[0042] In some other embodiments of the present application, a fifth bearing 081 and a sixth bearing 082 are respectively arranged at the first end and the second end of the joint shaft 071. The fifth bearing 081 and the sixth bearing 082 are respectively arranged at the upper and lower ends of the second connecting member 08. The joint shaft 071 is fixed through the fifth bearing 081 and the sixth bearing 082 to achieve the rotation function.

[0043] In some other embodiments of the present application, a bearing cover plate 063 for fixing the joint shaft 071 and the fifth bearing 081 is provided at the top of the joint shaft 071. The bearing cover plate 063 can be installed on the second connecting member 08 by screws.

[0044] In some other embodiments of the present application, the first connecting member 07 includes a first annular body 084 and a second annular body 085 sleeved on the joint shaft 071. The first connecting member 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 the present application, a pulley structure 073 is further sleeved on the joint shaft 071. The pulley structure 073 is sleeved on the joint shaft 071 through a seventh bearing 083. The pulley structure 073 is used for passing a wire rope. The wire rope passing through the main arm 061 and the sub-arm 062 is wound around the pulley structure 073 to facilitate wire routing. The pulley structure 073 has a groove for accommodating the wire rope.

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

[0047] In some other embodiments of the present application, the sub-arm 062 is connected to the main arm 061 through 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. The two ends of the torsion spring 072 are respectively connected to the main arm 061 and the sub-arm 062. When the sub-arm 062 rotates, it drives the torsion spring 072 to tighten, and when not in use, it resets under the action of the elastic force of the torsion spring 072.

[0048] The above respectively show two embodiments with a first-level swing arm and a second-level swing arm in the technical solution of the present application. However, those skilled in the art should understand that the technical solution of the present application is not limited thereto, and the swing arm can have more levels.

[0049] Refer to Figure 2 and Figure 3 As shown, the base 01 is a special-shaped part. A spring winding installation chamber is provided inside the base 01. A clamping groove is provided on the inner wall of the spring winding installation chamber. The outer end of the second coil spring 04 is hung on the clamping groove to limit rotation. The inner end of the second coil spring 04 is connected to the main shaft 02 in a hook-like manner. The main shaft 02 rotates to adjust the pre-tightening force of the second coil spring 04. Specifically, by rotating the main shaft 02, a pre-tightening moment is generated on the second coil spring 04, so that a corresponding pre-tightening force is generated at the free end of the swing arm for pulling the gun line. An extension part extends inwards from the inner wall of the base 01.

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

[0051] In some embodiments of the present application, the side wall of the main shaft 02 has a stepped structure 023, and the protruding portion of the stepped structure 023 is located inside the third bearing 022 and is supported by the inner side of the third bearing 022.

[0052] In some embodiments of the present 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, since the second torsion spring 04 is provided with an initial pre-tightening force, specifically, since the second torsion spring 04 is provided with an initial pre-tightening torque, the swing arm 03 with the gun line suspended at its free end is restricted to the initial position defined by the positioning block or the buffer block by this initial pre-tightening torque. When the user uses the charging gun, since the gun line of the charging gun is connected to the swing arm 03 of the charging pile swing arm device, the use of the charging gun will drive the swing arm 03 to swing, thereby driving the spring balancer 05 and the main shaft 02 to rotate, and further driving the second torsion spring 04 to tighten; after the charging gun is used up, the second torsion spring 04 relaxes under the action of the received force, driving the main shaft 02 to rotate, and further driving the spring balancer 05 and the swing arm 03 to swing to realize the automatic reset of the swing arm 03.

[0054] Most of the swing arms on the market currently do not have a reset function. After the gun line is pulled out, the gun line cannot be retracted to the starting point, and the gun line is easily dragged and worn on the ground. However, the technical solution of the present application realizes the automatic reset of the swing arm and the gun line through the cooperation of the torsion spring and the main shaft, and has more selectivity in space utilization and gun line layout. In addition, the pre-tightening force can be set by rotating the main shaft before using this structure. The reset force is pre-adjusted for gun lines of different lengths and weights, so that the gun line can be automatically reset to the starting point after being pulled out and used, ensuring the orderly suspension of the gun line on site.

[0055] Reference Figure 3 As shown, in some embodiments of the present application, an installation structure 013 for installing the base 01 on the charging pile body is provided on the base 01.

[0056] Reference Figure 3 As shown, in some embodiments of the present application, a limit structure 014 for limiting the rotation angle of the spring balancer 05 is provided on the base 01.

[0057] Reference Figure 2As shown, in some embodiments of the present application, the coil spring balancer 05 includes a housing 051; a second coil spring 052 is disposed inside the housing 051. The outer hook of the second coil spring 052 is hung on the balancer winding disc 054, and the inner hook of the second coil spring 052 is hung on the balancer fixed shaft 053. A cord 056 for connecting the gun line is wound and connected to the balancer winding disc 054.

[0058] Reference Figure 2 As shown, the bottom of the housing 051 of the coil spring balancer 05 is sleeved on the second end of the main shaft 02, and the bottom of the housing 051 of the coil spring balancer 05 and the second end of the main shaft 02 are fixedly connected 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 extending around, so that the main shaft 02 is integrally in a T shape (the horizontal parts on both sides of the T are the extensions). The fixing connector 012 penetrates through the extension of the second end of the main shaft 02 and the bottom of the coil spring balancer 05. After the bottom of the housing of the coil spring balancer 05 and the extension of the second end of the main shaft 02 are nested, they are fixedly connected by the fixing connector 012. Specifically, the abutting 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 with the extension (the bottom of the housing of the coil spring balancer 05 sleeves the extension through the abutting structure 055), and the fixing connector 012 penetrates through the extension and the abutting structure to achieve a fixed connection.

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

[0060] Reference Figure 2 As shown, in some embodiments of the present application, the bottom of the coil spring balancer 05 is provided with an abutting structure 055 for abutting against the first bearing 011. A part of the abutting structure 055 abuts against the first bearing 011, and the other part abuts against the top of the bottom 01. The coil spring balancer 05 is connected to the first bearing 011 through the abutting structure 055 and rotates relative to the base 01 through the first bearing 011. In the technical solution of the present application, the base 01 bears the coil spring balancer 05 through the second end of the main shaft 02 and the first bearing 011, with a large bearing area, a more stable structure, and a smoother rotation of the coil spring balancer 05.

[0061] Reference Figure 1 and Figure 2As shown, in some embodiments of the present application, the first end of the swing arm 03 is sleeved on the outer shell 051 of the coil spring balancer 05 along the tangent direction of the outer shell of the coil spring balancer 05. Specifically, a connecting portion 059 for accommodating the first end of the swing arm 03 is provided in the tangent 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 through a fixing member. The connection of the swing arm 03 to the outer shell of the coil spring balancer 05 along the tangent direction of the outer shell of the coil spring balancer 05 enables the direction of the swing arm 03 to always be parallel to the direction of the wire coming out of the coil spring balancer 05 without any auxiliary mechanism, thereby reducing the loss of pulling force when the gun wire is pulled back. It should be noted that the conventional connection components between the surface of the base shell and the surface of the coil spring balancer shell, such as gaskets, screws, etc., are common knowledge in the art, so they are 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 in combination with common knowledge.

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

[0063] Reference Figure 1 and Figure 4 As shown, in some embodiments of the present 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, which is convenient for repair and replacement.

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

[0065] Specifically, reference Figure 5As shown, the plurality of pulleys 034 are mounted on the pulley mounting plate 032 by means of screw assemblies 0341 used in pairs. Pulley bushings 0342 are provided on both sides of each pulley 034 to prevent the pulley 034 from sliding axially. The screw assembly 0341 passes through the pulley bushing 0342 and the pulley 034. The fourth bearing 036 is mounted on the bearing seat 035. The mounting portion 033 has a thread, and after passing through the fourth bearing 036, the mounting portion 033 is fixed by a fixing ring 037 having a thread on its inner wall. The bearing seat 035 is mounted on the second end of the swing arm 03 by a plurality of screws 0351. The fourth bearing 036 is also limited by a bearing gasket 038. The bearing gasket 038 is mounted on the bearing seat 035 by a plurality of screws 0381.

[0066] In some embodiments of the present application, the swing arm 03 is hollow inside, and a cord 056 for hanging the charging gun cable is hung on the plurality of pulleys 032 and passes through the swing arm 03 to be connected to the balancer winding disc 054. The plurality of pulleys 034 have grooves for accommodating the cord to prevent the cord from falling off.

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

[0068] A coil spring balancer 05 is provided in the charging pile swing arm device of the present application. The cord 056 for hanging the gun cable is connected to the coil spring balancer 05, and the coil spring balancer 05 controls the pay-out length, so that the cord 056 can pay out to connect the vehicle and the gun cable according to the needs of the user, and the cord 056 automatically resets after the gun cable is disconnected from the vehicle after charging is completed. The coil spring balancer 05 can pre-adjust the reset force according to the actual length and weight of the gun cable used before use, so that the pay-out length can automatically reset to the initial pay-out length after the gun cable is pulled out and used, ensuring the orderly hanging of the gun cable on the site. The cord 056 can pre-adjust the position of the cord installed on the gun cable and the initial pay-out length of the cord according to the actual length and weight of the gun cable used before use.

[0069] Figure 6 It is a schematic structural diagram of a charging pile shown in some embodiments of the present application.

[0070] The present application also provides a charging pile, refer to Figure 6As shown in the figure, it includes: a charging pile body 100; the charging pile swing arm device 200 as described above, which is installed on the charging pile body 100 (specifically, for example, on the top); a charging gun (not shown in the figure), and the cable of the charging gun is connected to the cord 056 of the charging pile swing arm device 200 through a cable clip that clamps one end of the cable.

[0071] The charging pile provided by the embodiment of the present application adopts the charging pile swing arm device described in the embodiment of the present application. The cord 056 for hanging the cable is connected to the torsion spring balancer 05 and the torsion spring balancer 05 controls the length of the released cable, so that the cord 056 can release the cable to the vehicle according to the needs of the user for connection with the cable, and automatically reset after the cable is disconnected from the vehicle after charging is completed. The torsion spring balancer 05 can pre-adjust the reset force according to the actual length and weight of the cable used before use, so that the released cable length can automatically reset to the initial released cable length after the cable is pulled out and used, ensuring the orderly hanging of the cable on site. The cord 056 can pre-adjust the position of the cord installed on the cable and the initial released cable length according to the actual length and weight of the cable used before use.

[0072] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only an example and does not constitute a limitation to this specification. Although not explicitly stated here, those skilled in the art may make various modifications, improvements, and corrections to the present application. Such modifications, improvements, and corrections are proposed in this specification, so such modifications, improvements, and corrections still belong to the spirit and scope of the exemplary embodiments of the present application.

[0073] It should be noted that in the description of the present application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be a rotational connection or a sliding connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood in combination with specific situations.

[0074] In addition, when terms such as "first", "second", and "third" are used in the description of this specification to describe various features, these terms are only used to distinguish these features and cannot be understood as indicating or implying the relevance, relative importance, or implicitly indicating the number of the indicated features.

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

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

[0077] Similarly, it should be noted that, in order to simplify the presentation of the disclosure of the present application and thus help the understanding of one or more embodiments of the application, in the foregoing description of the embodiments of the present application, multiple features are sometimes grouped into one embodiment, drawing, or description thereof. However, this method of disclosure does not mean that the features required by the subject matter of the present application are more than those mentioned in the claims. In fact, the features of the embodiments are fewer than all the features of the individual embodiments disclosed above.

[0078] Finally, it should be understood that the embodiments described in the present application are only used to illustrate the principles of the embodiments of the present application. Other variations may also fall within the scope of the present application. Therefore, by way of example and not limitation, alternative configurations of the embodiments of the present application can be considered to be consistent with the teachings of the present application. Accordingly, the embodiments of the present application are not limited to the embodiments explicitly introduced and described in the present application.

Claims

1. A charging pile swing arm device, characterized in that, Comprising: 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 the main shaft is configured to rotate in the base; A spring balancer, which is connected to the second end of the main shaft, and a contact structure for contacting the first bearing is provided at the bottom of the spring balancer; An oscillating arm, which is connected to the spring balancer, and when the oscillating arm swings, it drives the spring balancer to rotate and further 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 2, characterized in that, The bottom of the base includes a bearing seat for accommodating the second bearing.

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

5. The charging pile swing arm device according to claim 4, wherein, The bottom of the housing of the spring balancer is sleeved with the second end of the main shaft, and the bottom of the housing of the spring balancer and the second end of the main shaft are fixedly connected by a fixing connector.

6. The charging pile swing arm device according to claim 5, characterized in that The second end of the main shaft has an extension portion extending around, and the bottom of the housing of the spring balancer and the extension portion of the second end of the main shaft are nested and then fixedly connected by a fixing connector.

7. The charging pile swing arm device according to claim 6, characterized in that, The contact structure at the bottom of the housing of the spring balancer is located below the extension portion of the second end of the main shaft, and the fixing connector penetrates through the extension portion and the contact structure to achieve fixed connection.

8. The charging pile swing arm device according to claim 5, characterized in that, The balancer fixed shaft extends out of the housing of the spring balancer and axially penetrates into the main shaft from the second end of the main shaft and is fixedly connected to the main shaft.

9. The charging pile swing arm device according to claim 5, characterized in that, The first end of the oscillating arm is connected to the housing of the spring balancer along the tangent direction of the housing of the spring balancer, and a pulley assembly is provided at the second end of the oscillating arm.

10. The charging pile swing arm device according to claim 9, wherein, A connecting portion for accommodating the first end of the oscillating arm is provided in the tangent direction of the housing of the spring balancer, and the first end of the oscillating arm is sleeved on the connecting portion and then fixed from the side wall by a fixing member.

11. The charging pile swing arm device according to claim 10, wherein The pulley assembly includes a pulley mounting plate and a plurality of pulleys provided on the pulley mounting plate, the pulley mounting plate is fixedly connected to the fourth bearing at the second end of the oscillating arm through a mounting portion, and the mounting portion is configured to rotate through the fourth bearing.

12. The charging pile swing arm device according to claim 11, wherein The inside of the oscillating arm is hollow, and a cord for hanging the charging gun cable is hung on the plurality of pulleys and passes through the oscillating arm and is connected to the balancer winding disc.

13. The charging pile swing arm device according to claim 12, characterized in that, The plurality of pulleys have grooves for accommodating the cord.

14. The charging pile swing arm device according to claim 1, characterized in that, The side wall of the main shaft has a stepped structure, and the protruding portion of the stepped structure is located inside the third bearing and is supported by the inner top of the third bearing.

15. The charging pile swing arm device according to claim 1, characterized in that, The oscillating arm includes a main arm connecting the main shaft and a sub-arm connecting the main arm, a first connecting member is provided on the main arm, a second connecting member is provided on the sub-arm, the first connecting member is connected to the second connecting member through a joint shaft, and the second connecting member is configured to rotate through the joint shaft and drive the sub-arm to rotate around the main arm.

16. The charging pile swing arm device according to claim 15, characterized in that, The first connecting member includes a first annular body and a second annular body sleeved on the joint shaft.

17. The charging pile swing arm device according to claim 16, characterized in that, A pulley structure is also sleeved on the joint shaft, and the pulley structure is sleeved on the joint shaft through a seventh bearing.

18. The charging pile swing arm device according to claim 17, characterized in that, The pulley structure is located between the first annular body and the second annular body.

19. The charging pile swing arm device according to claim 15, characterized in that, A bearing cover plate for fixing the joint axis is provided at the top of the joint axis.

20. A charging pile, characterized in that, Comprising: A charging pile body; The charging pile swing arm device according to any one of claims 1-19, mounted on the charging pile body; A charging gun, and a wire of the charging gun is connected to a cord of the charging pile swing arm device through a cable clip that clamps one end of the wire.

Images