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 coil spring is arranged in the base, and the outer end of the coil spring is connected with the base; the main shaft comprises a first part located in the base and a second part extending out of the base, the first part is connected with the inner end of the coil spring, and the main shaft is configured to drive the coil spring to be tightened or to be driven by the restoring force of the coil spring to rotate in the second direction when rotating in the first direction; and the swing arm is connected with the second part of the main shaft, and when the swing arm swings towards the first direction, the swing arm drives the main shaft to rotate towards the first direction, or when the restoring force of the coil spring drives the main shaft to rotate towards the second direction, the swing arm is driven to swing towards the second direction. According to the charging pile swing arm device, after the swing arm is used, the swing arm can automatically reset under the action of the winding force of the coil spring, and a gun line is prevented from being abraded on the ground.

Description

Technical Field

[0001] The present application relates to the technical field of charging pile wire-receiving devices, and in particular to a charging pile swing arm device and a charging pile. Background Art

[0002] The gun line assist recovery system refers to a user-friendly structural device that assists the pulling and recovery of the gun line due to its heavy weight and long length. At present, auxiliary devices such as coil spring balancers and swing arms are commonly used in the market. This adjustment method has several disadvantages: 1) The coil spring balancer has obvious disadvantages for heavy and long gun lines due to the growth of the coil spring force and the influence of the coil spring's own material. When the balancer rope is pulled out to the end, the user will be subjected to a large pulling force, which cannot achieve the purpose of improving the user experience. In addition, the pull-out rope length of the coil spring balancer is limited, which is not friendly to the gun line manufacturer; 2) Most of the swing arms on the market do not have a reset function. After the gun line is pulled out, the gun line cannot be recovered to the starting point. The gun line is easily dragged and worn on the ground. At the same time, most of the existing swing arms are less than 1 meter long, resulting in a large waste of gun line length.

[0003] Therefore, it is hoped to provide a charging pile swing arm device and a charging pile, in which the gun line and the swing arm can automatically reset after use, thereby preventing the gun line from wearing on the ground and improving the user experience. Summary of the invention

[0004] The technical problem to be solved by the present application is that the swing arm device currently on the market does not have an automatic reset function, and the gun line is easily worn on the ground after being pulled out.

[0005] An embodiment of the present application provides a charging pile swing arm device, comprising: a base; a coil spring, which is arranged inside the base, and the outer end of the coil spring is connected to the base; a main shaft, the main shaft comprising a first part located inside the base and a second part extending from the base, the first part is connected to the inner end of the coil spring, and the main shaft is configured to drive the coil spring to tighten when rotating in a first direction or to be driven by the restoring force of the coil spring to rotate in a second direction; a swing arm, the swing arm is connected to the second part of the main shaft, and when the swing arm swings in the first direction, it drives the main shaft to rotate in the first direction, or when the restoring force of the coil spring drives the main shaft to rotate in the second direction, it drives the swing arm to swing in the second direction.

[0006] In some embodiments of the present application, the first portion and the second portion of the main shaft each include a main body and an end portion, and a diameter of the end portion is smaller than a diameter of the main body.

[0007] In some embodiments of the present application, the ends of the first part and the second part of the main shaft are respectively provided with a first bearing and a second bearing.

[0008] In some embodiments of the present application, the base includes a fixing bracket extending from one side of the top of the base to above the top, and the fixing bracket fixes the second bearing.

[0009] In some embodiments of the present application, a bearing seat for accommodating and fixing the first bearing is provided at the bottom of the base.

[0010] In some embodiments of the present application, the outer ring of the first bearing contacts the bottom surface of the bearing seat, the inner ring of the first bearing does not contact the bottom surface of the bearing seat, the outer ring of the second bearing contacts the bottom surface of the fixed bracket, and the inner ring of the second bearing does not contact the bottom surface of the fixed bracket.

[0011] In some embodiments of the present application, a first buffer block is provided between the fixed bracket and the swing arm.

[0012] In some embodiments of the present application, the swing arm is connected to the main body of the second part of the main shaft, and the inner end of the coil spring is connected to the main body of the first part of the main shaft.

[0013] In some embodiments of the present application, a first bearing is provided at the end of the first part of the main shaft, a second bearing located in the main body of the first part of the main shaft is provided at the top inner part of the base, and the second part of the main shaft is connected to the swing arm through a fixed connecting member.

[0014] In some embodiments of the present application, a first buffer block bracket and a first buffer block arranged on the first buffer block bracket are also provided on the top of the base.

[0015] In some embodiments of the present application, a first buffer block bracket and a first buffer block arranged on the first buffer block bracket are also provided on the top of the base.

[0016] In some embodiments of the present application, a connection position between the first part and the second part has an annular protrusion, and the annular protrusion is clamped on the top surface of the base to limit the axial position of the swing arm.

[0017] In some embodiments of the present application, a first annular gasket is arranged between the swing arm and the annular protrusion, and a first special-shaped gasket is arranged between the swing arm and the second bearing. The first special-shaped gasket contacts the inner ring of the second bearing but not other positions of the second bearing.

[0018] In some embodiments of the present application, a coil spring installation compartment is provided inside the base, a clamping groove is provided on the inner wall of the coil spring installation compartment, and the outer end of the coil spring is hung on the clamping groove.

[0019] In some embodiments of the present application, the swing arm includes a main arm connected to the second portion of the main shaft and a secondary arm connected to the main arm, and the secondary arm is configured to swing around the main arm.

[0020] In some embodiments of the present application, the auxiliary arm is connected to the main arm through a secondary shaft, and a third bearing and a fourth bearing are respectively provided at the first end and the second end of the secondary shaft.

[0021] In some embodiments of the present application, the third bearing is fixedly installed in the bearing hole of the main arm, and the fourth bearing is fixed by a raised portion located on the secondary shaft and a bearing baffle.

[0022] In some embodiments of the present application, the outer ring of the third bearing contacts the bottom surface of the bearing hole, the inner ring of the third bearing does not contact the bottom surface of the bearing hole, the outer ring of the fourth bearing contacts the bottom surface of the bearing baffle plate, the inner ring of the fourth bearing does not contact the bottom surface of the bearing baffle plate, and the raised portion supports the inner ring of the fourth bearing.

[0023] In some embodiments of the present application, the auxiliary arm is connected to the main arm via a torsion spring, the torsion spring is sleeved on the auxiliary arm, and two ends of the torsion spring are respectively connected to the main arm and the auxiliary arm.

[0024] In some embodiments of the present application, a second buffer block is provided between the auxiliary arm and the main arm.

[0025] In some embodiments of the present application, the swing arm includes a main body portion and a connecting portion located at at least one end of the main body portion, and the connecting portion is used to connect to the main shaft.

[0026] In some embodiments of the present application, a portion of the connecting portion extends into the main body portion and is fixed by a cylindrical pin located on a side wall of the main body portion, and the connecting portion and the end portions of the main body portion are welded.

[0027] The present application also provides a charging pile, comprising: a charging pile body; a charging pile swing arm device as described above, installed on the charging pile body; a charging gun, the gun line of the charging gun is flexibly connected to the free end of the swing arm of the charging pile swing arm device through a cable clamp that clamps one end of the gun line.

[0028] The charging pile swing arm device provided in the embodiment of the present application has a coil spring arranged on the first part of the main shaft. When the swing arm swings, it drives the main shaft to rotate and then drives the coil spring to tighten or relax. After use, the swing arm can automatically reset under the action of the coil spring, thereby avoiding gun line wear and improving user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The following figures describe in detail the exemplary embodiments disclosed in this application. The same reference numerals represent similar structures in several views of the drawings. Those skilled 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 this application. Other embodiments may also accomplish the application intent in this application. It should be understood that the drawings are not drawn to scale.

[0030] in:

[0031] Figure 1 is a schematic diagram of the overall structure of a charging pile swing arm device according to some embodiments of the present application;

[0032] Figure 2 is a partial cross-sectional view of a charging pile swing arm device according to some embodiments of the present application;

[0033] Figure 3 is a schematic diagram of the overall structure of a charging pile swing arm device according to other embodiments of the present application;

[0034] Figure 4 is a partial cross-sectional view of a charging pile swing arm device according to other embodiments of the present application;

[0035] Figure 5 is a partial stereoscopic diagram of a charging pile swing arm device according to other embodiments of the present application;

[0036] Figure 6 and Figure 7 It is a schematic diagram of the connection structure of the main arm and the auxiliary arm of the charging pile swing arm device according to some embodiments of the present application;

[0037] Figure 8 is a schematic diagram of the torsion spring structure of the charging pile swing arm device according to some embodiments of the present application;

[0038] Fig. 9 , Fig.10 and Fig.11 is a schematic diagram of the structure of a swing arm of a charging pile swing arm device according to some embodiments of the present application;

[0039] Fig.12 It is a schematic diagram of the structure of a charging pile according to some embodiments of the present application. DETAILED DESCRIPTION

[0040] The following description provides specific application scenarios and requirements of the present application, with the purpose of enabling those skilled in the art to make and use the content in the present application. It will be apparent to those skilled in the art that various local modifications to the disclosed embodiments are apparent, and the general principles defined herein may 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 embodiments shown, but to the widest scope consistent with the claims.

[0041] The technical solution of the present application is described in detail below with reference to the embodiments and drawings.

[0042] Figure 1 It is a schematic diagram of the overall structure of a charging pile swing arm device according to some embodiments of the present application. Figure 2 It is a partial cross-sectional view of a charging pile swing arm device according to some embodiments of the present application.

[0043] refer to Figure 1 and Figure 2 As shown, some embodiments of the present application provide a charging pile swing arm device, comprising: a base 01; a coil spring 04, which is arranged inside the base 01, and the outer end of the coil spring 04 is connected to the base 01; a main shaft 02, the main shaft 02 comprises a first part located inside the base 01 and a second part extending from the base 01, the first part of the main shaft 02 is connected to the inner end of the coil spring 04, and the main shaft 02 is configured to drive the coil spring 04 to tighten when rotating in a first direction or to be driven by the restoring force of the coil spring 04 to rotate in a second direction; a swing arm 03, the swing arm 03 is connected to the second part of the main shaft 02, and when the swing arm 03 swings in the first direction, it drives the main shaft 02 to rotate in the first direction, or when the restoring force of the coil spring 04 drives the main shaft 02 to rotate in the second direction, it drives the swing arm 03 to swing in the second direction.

[0044] refer to Figure 2 As shown, the base 01 is a special-shaped part, and a coil spring installation compartment is provided inside the base 01. The inner wall of the coil spring installation compartment is provided with a slot, and the outer end of the coil spring 04 is hung on the slot to limit rotation. The inner end of the coil spring 04 is hook-connected to the first part of the main shaft 02, and the main shaft 02 is rotated to adjust the preload force of the coil spring 04. Specifically, by rotating the main shaft 02, the coil spring 04 generates a preload torque, so that the free end of the swing arm pulling the gun line generates a corresponding preload force.

[0045] In some embodiments of the present application, a bearing seat for accommodating and fixing the first bearing 021 is disposed at the bottom of the base 01 .

[0046] The working process of the charging pile swing arm device is as follows: when the charging gun is not in use, since the coil spring 04 is provided with an initial preload force, specifically, since the coil spring 04 is provided with an initial preload torque, the swing arm 03 with the gun line suspended at the free end is limited by the initial preload torque to the initial position defined by the positioning block or the buffer block. 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 main shaft 02 to rotate and then driving the coil spring 04 to tighten; after the charging gun is used, the coil spring 04 relaxes under the action of the force, driving the main shaft 02 to rotate and then driving the swing arm 03 to swing to achieve automatic resetting of the swing arm 03.

[0047] 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 recovered to the starting point, and the gun line is easily dragged on the ground and worn. The technical solution of this application realizes the automatic reset of the swing arm and the gun line through the cooperation of the coil spring and the main shaft, which has more options in space utilization and gun line layout. In addition, the structure can set the preload force by rotating the main shaft before use, and pre-adjust the reset force for gun lines of different lengths and weights, so that the gun line can automatically reset to the starting point after being pulled out and used, ensuring that the gun line is hung in an orderly manner on site.

[0048] Continue to refer Figure 2 As shown, in some embodiments of the present application, the first part and the second part of the main shaft 02 both include a main body and an end, and the diameter of the end is smaller than the diameter of the main body. Figure 2 As shown, the end portions are respectively located at two ends of the main shaft 02, and the main body is integrally connected with the corresponding end portions.

[0049] In some embodiments of the present application, a connecting position between the first part and the second part has an annular protrusion 022 , and the annular protrusion 022 is clamped on the top surface of the base 01 and cooperates with the fixing bracket 011 to axially limit the swing arm 03 .

[0050] In some embodiments of the present application, the ends of the first part and the second part of the main shaft 02 are respectively provided with a first bearing 021 and a second bearing 029. The technical solution of the present application installs two bearings (the first bearing 021 and the second bearing 029) at both ends of the main shaft 02 to limit the axial and radial displacements of the main shaft 02. This dual-bearing structure can withstand a large load without affecting the smoothness of the rotation.

[0051] Continue to refer Figure 2 As shown, in some embodiments of the present application, the base 01 includes a fixing bracket 011 extending from one side of the top of the base 01 to above the top, and the fixing bracket 011 fixes the second bearing 029 .

[0052] refer to Figure 2 As shown, the outer ring of the first bearing 021 contacts the bottom surface of the bearing seat to obtain support, the inner ring of the first bearing 021 does not contact the bottom surface of the bearing seat to reduce the friction force on the inner ring when rotating, the outer ring of the second bearing 029 contacts the bottom surface of the fixed bracket 011 to be limited and fixed, and the inner ring of the second bearing 029 does not contact the bottom surface of the fixed bracket 011 to reduce the friction force on the inner ring when rotating. It should be noted that the bearing structure is a common part structure in the mechanical field, and all bearings in this application can be bearing structures commonly used in this field. The bearing structure generally includes an outer ring and an inner ring in a concentric circle structure, and balls are arranged between the outer ring and the inner ring, and the inner ring can rotate through the balls.

[0053] Continue to refer Figure 2 As shown, in some embodiments of the present application, the swing arm 03 is connected to the main body of the second part of the main shaft 02 , and the inner end of the coil spring 04 is connected to the main body of the first part of the main shaft 02 .

[0054] refer to Figure 2 As shown, a first annular gasket 018 is arranged between the swing arm 03 and the annular protrusion 022, and a first special-shaped gasket 028 is arranged between the swing arm 03 and the second bearing 029. The first special-shaped gasket 028 contacts the inner ring of the second bearing 029 but does not contact other positions of the second bearing 029.

[0055] Continue to refer Figure 1 As shown, in some embodiments of the present application, the swing arm 03 includes a main arm 031 connected to the second portion of the main shaft 02 and a secondary arm 032 connected to the main arm 031 , and the secondary arm 032 is configured to swing around the main arm 031 .

[0056] The charging pile swing arm device of the present application has a multi-stage swing arm (the present application only uses a two-stage swing arm as a demonstration, and in other embodiments, it may have multiple auxiliary arms). The multi-stage swing arm design makes the overall length larger and reduces the waste of gun line length. The swing angle of the main arm 031 of the present application can reach 180 degrees, and the swing angle of the auxiliary arm 032 is 90 degrees. The main arm 031 of the present application can achieve automatic reset, and the auxiliary arm 032 can also achieve automatic reset.

[0057] Continue to refer Figure 2 As shown, one end of the main arm 031 of the swing arm 03 is fixedly sleeved on the main body of the second part of the main shaft 02, and a first buffer block 014 is also included between the main arm 031 and the fixed bracket 011. The position where the main arm 031 is connected to the main shaft 02 is also provided with a gasket, a shaft shoulder, a shaft ring, etc. to limit the axial movement of the main arm.

[0058] Figure 3 It is a schematic diagram of the overall structure of a charging pile swing arm device according to other embodiments of the present application. Figure 4 It is a partial cross-sectional view of a charging pile swing arm device according to other embodiments of the present application. Figure 5 It is a partial stereoscopic view of a charging pile swing arm device according to other embodiments of the present application.

[0059] refer to Figure 3 , Figure 4 and Figure 5 As shown, in some other embodiments of the present application, a first bearing 021 is disposed at the end of the first portion of the main shaft 02, a second bearing 029 for fixing the main body of the first portion of the main shaft 02 is disposed at the top of the base 01, and the second portion of the main shaft 02 is connected to the swing arm 03 via a fixed connector 017. A first buffer block bracket 015 and a first buffer block 014 disposed on the first buffer block bracket 015 are also disposed on the top of the base 01.

[0060] In some other embodiments of the present application, the first portion has an annular protrusion 022, and the annular protrusion 022 is clamped under the second bearing 029 and on the upper surface of the coil spring 04 to limit the axial position of the swing arm 03.

[0061] In some embodiments of the present application, the outer ring of the first bearing 021 contacts the bottom surface of the bearing seat to obtain support, the inner ring of the first bearing 021 does not contact the bottom surface of the bearing seat to reduce the friction force on the inner ring when rotating, the outer ring of the second bearing 029 contacts the inner top surface of the base 01 to be limited and fixed, the inner ring of the second bearing 029 does not contact the inner top surface of the base 01 to reduce the friction force on the inner ring when rotating, and the annular protrusion 022 supports the inner ring of the second bearing 029.

[0062] Figures 3 to 5 The charging pile swing arm device shown is Figure 1 and Figure 2 The main differences of the charging pile swing arm device shown are as follows. Figure 1 and Figure 2 In the charging pile swing arm device shown, the main shaft 02 is fixed by the bearing seat and the fixing bracket; Figures 3 to 5 In the charging pile swing arm device shown, the main shaft 02 is fixed by the bearing seat and the second bearing 029. Figure 1 and Figure 2 In the charging pile swing arm device shown, the swing arm 03 is limited in axial movement by a gasket, a shoulder, a collar, etc. provided at the position where the main arm 031 is connected to the main shaft 02; and Figures 3 to 5In the charging pile swing arm device shown, the swing arm 03 is restricted in axial movement by a fixed connector 017 .

[0063] Figure 6 and Figure 7 It is a schematic diagram of the connection structure of the main arm and auxiliary arm of the charging pile swing arm device shown in some embodiments of the present application.

[0064] refer to Figure 6 and Figure 7 As shown, in some embodiments of the present application, the auxiliary arm 032 is connected to the main arm 031 through the auxiliary shaft 033, and the first end and the second end of the auxiliary shaft 033 are respectively provided with a third bearing 035 and a fourth bearing 016, the third bearing 035 is fixedly installed in the main arm 031, the fourth bearing 016 is fixed by a raised portion 040 located on the auxiliary shaft 033 and a bearing baffle 036, and the auxiliary arm 032 is connected to the main arm 031 through a torsion spring 034. The auxiliary arm 032 and the main arm 031 are also driven by a bearing, and a torsion spring 034 is provided on the auxiliary arm 032, which is used to reset the auxiliary arm 032 to form a fixed angle with the main arm 031, and the outer side of the fourth bearing 016 is completely eliminated by locking screws of the bearing baffle 036.

[0065] In some embodiments of the present application, the outer ring of the third bearing 035 contacts the bottom surface of the bearing hole to be supported, the inner ring of the third bearing 035 does not contact the bottom surface of the bearing hole and is suspended in the air to reduce friction during rotation, the outer ring of the fourth bearing 016 contacts the bottom surface of the bearing baffle 036 to be axially limited, the inner ring of the fourth bearing 016 does not contact the bottom surface of the bearing baffle 036 to reduce friction during rotation, and the raised portion 040 supports the inner ring of the fourth bearing 016.

[0066] In some embodiments of the present application, a second buffer block 019 is provided between the auxiliary arm 032 and the main arm 031 .

[0067] The charging pile swing arm device of the present application is provided with a bearing hole for accommodating the third bearing 035 on the main arm 031, and the third bearing 035 is fixedly installed in the bearing hole. After the secondary shaft 033 passes through the secondary arm 032 and the third bearing 035, the fourth bearing 016 is sleeved on the secondary shaft 033, and then the bearing baffle 036 is installed and locked to fully limit the axial direction. The torsion spring 034 is directly pre-installed on the secondary arm 032.

[0068] The torsion spring is used between the main arm and the auxiliary arm of the charging pile swing arm device of the present application, so that an interaction force is added between the two arms, so that the swing arm and the gun line can automatically reset to the starting point after the gun line is pulled out and used, thereby improving the utilization rate of the on-site space and ensuring the orderly suspension of the on-site gun line. A double bearing structure is also used on the secondary shaft to increase the load-bearing capacity of the auxiliary arm. One of the bearings of the auxiliary arm uses a bearing baffle to limit the position, and the axial clearance is completely eliminated by locking the bolt, so that the design achieves the purpose of no shaking.

[0069] Figure 8 It is a schematic diagram of the torsion spring structure of the charging pile swing arm device according to some embodiments of the present application.

[0070] refer to Figure 8 As shown, the torsion spring 034 is designed according to the actual rotation angle and the need for reset. A pre-tightening force is required during installation. During operation, because the two ends of the torsion spring are respectively fixed on the main arm and the auxiliary arm, a torsion force is formed between the two arms. This torsion force enables the two arms to return to the initial position state and realize automatic reset. The torsion spring 034 is sleeved on the auxiliary arm 032, and the two ends of the torsion spring 034 are respectively connected to the main arm 031 and the auxiliary arm 032. Specifically, a hole slot is provided on the auxiliary arm 032, and one end of the torsion spring 034 ( Figure 8 The other end of the torsion spring 034 ( Figure 8 The horizontal end of the middle arm 031 abuts against the main arm 031.

[0071] Fig. 9 , Fig.10 and Fig.11 It is a schematic diagram of the structure of the swing arm of the charging pile swing arm device according to some embodiments of the present application.

[0072] refer to Fig. 9 and Fig.10 As shown, in some embodiments of the present application, the swing arm 03 includes a main body portion 037 and a connecting portion 038 located at at least one end of the main body portion 037, and the connecting portion 038 is used to connect the main shaft 02. The main body portion 037 and the connecting portion 038 are not connected in an integral manner. Specifically, when the swing arm 03 is a single-arm structure, the end of the main body portion 037 connected to the main shaft 02 is provided with a connecting portion 038. When the swing arm 03 is a multi-stage arm structure, one end of the last connected auxiliary arm is provided with a connecting portion 038, and the other auxiliary arms and both ends of the main arm are provided with connecting portions 038.

[0073] This application uses a two-stage swing arm as a demonstration. Fig. 9 The end of the main arm connected to the main shaft. Fig.10 The connecting part 038 is one end of the main arm connected to the auxiliary arm. The connecting part 038 includes a mounting hole for mounting the main shaft or the auxiliary shaft.

[0074] In some embodiments of the present application, the main body 037 is formed by an extrusion process, and the connecting portion 038 is formed by an extrusion process or a die-casting process. Both the main body 037 and the connecting portion 038 can be formed by an extrusion process, with high consistency in appearance and material, and high welding strength. The material of the main body 037 and the connecting portion 038 is, for example, aluminum.

[0075] In some embodiments of the present application, the connecting portion 038 is connected to the main body portion 037 by welding.

[0076] In some embodiments of the present application, the connecting portion 038 and the main body portion 037 are fixed by a plurality of cylindrical pins 039. The number of the cylindrical pins 039 can be set according to actual needs.

[0077] In some embodiments of the present application, the main body portion 037 is a hollow structure, a portion of the connecting portion 038 extends into the main body portion 037 and is connected and fixed by a cylindrical pin 039 located on the side wall of the main body portion 037, and the contact surfaces of the connecting portion 038 and the end of the main body portion 037 are welded.

[0078] refer to Fig.11 As shown, in some embodiments of the present application, reinforcing ribs 0310 are further provided inside the main body portion 037 .

[0079] The swing arm in the charging pile swing arm device of the present application is formed by an extrusion process, with high precision and good surface quality. The connection parts 038 at both ends of the main part 037 are welded aluminum parts to ensure strength. The interior of the main part 037 can be freely designed with reinforcing ribs of different structures to increase the bending resistance. Due to the characteristics of the production method, the swing arm can be cut at any position, and after one mold opening, it has the ability to quickly mass-produce swing arms of different lengths, and the cost is low.

[0080] The charging pile swing arm device provided in the embodiment of the present application has a coil spring arranged on the first part of the main shaft. When the swing arm swings, it drives the main shaft to rotate and then drives the coil spring to tighten or relax. After use, the swing arm can automatically reset under the action of the coil spring, thereby avoiding the gun line from wearing on the ground and improving the user experience.

[0081] Fig.12 It is a schematic diagram of the structure of a charging pile according to some embodiments of the present application.

[0082] This application also provides a charging pile, reference Fig.12As shown, 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, the top); a charging gun, and the gun line 300 of the charging gun is flexibly connected to the free end of the swing arm of the charging pile swing arm device 200 (for example, the free end of the last-stage auxiliary arm) through a cable clamp 400 that clamps one end of the gun line.

[0083] The charging pile provided in the embodiment of the present application adopts the charging pile swing arm device described in the embodiment of the present application. When the user uses the charging gun to drive the gun line and then drives the swing arm to swing, it will drive the main shaft to rotate and then drive the coil spring to tighten or relax. After use, the swing arm can automatically reset under the action of the coil spring's force, thereby avoiding the gun line from wearing on the ground and improving the user experience.

[0084] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only for example and does not constitute a limitation of this specification. Although not explicitly stated here, 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, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of this application.

[0085] It should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", and "fix" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a rotating connection or a sliding connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood in combination with specific circumstances.

[0086] In addition, when terms such as "first", "second", and "third" are used in the specification of this application to describe various features, these terms are only used to distinguish these features and cannot be understood as indicating or implying the relationship between the features, the relative importance, or implicitly indicating the number of features indicated.

[0087] In addition, the present specification describes exemplary embodiments by reference to idealized exemplary cross-sectional views and / or plan views and / or stereograms. Therefore, differences from the illustrated shapes due to, for example, manufacturing techniques and / or tolerances are foreseeable. Therefore, the exemplary embodiments should not be interpreted as being limited to the shapes of the regions shown herein, but should include deviations in shapes caused by, for example, manufacturing. Therefore, the regions shown in the figures are schematic in nature, 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.

[0088] At the same time, the present application uses specific words to describe the embodiments of this specification. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more in different positions in the present application does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0089] Similarly, it should be noted that in order to simplify the description of the disclosure of this application and thus help understand one or more application embodiments, in the above description of the embodiments of this application, multiple features are sometimes merged into one embodiment, figure or description thereof. However, this disclosure method does not mean that the features required by the object of this application are more than the features mentioned in the claims. In fact, the features of the embodiments are less than all the features of the single embodiment disclosed above.

[0090] Finally, it should be understood that the embodiments described in this 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, as an example and not a limitation, the alternative configurations of the embodiments of the present application may 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: include: Base; A coil spring is arranged inside the base, and an outer end of the coil spring is connected to the base; A main shaft, the main shaft comprising a first portion located inside the base and a second portion extending out of the base, the first portion being connected to the inner end of the coil spring, the main shaft being configured to drive the coil spring to tighten when rotating in a first direction or to be driven by the restoring force of the coil spring to rotate in a second direction; A swing arm is connected to the second part of the main shaft, and when the swing arm swings in the first direction, it drives the main shaft to rotate in the first direction, or when the restoring force of the coil spring drives the main shaft to rotate in the second direction, it drives the swing arm to swing in the second direction.

2. The charging pile swing arm device according to claim 1, characterized in that: The first part and the second part of the main shaft each include a main body and an end portion, wherein a diameter of the end portion is smaller than a diameter of the main body.

3. The charging pile swing arm device according to claim 2, characterized in that: The ends of the first part and the second part of the main shaft are respectively provided with a first bearing and a second bearing.

4. The charging pile swing arm device according to claim 3, characterized in that: The base includes a fixing bracket extending from one side of the top of the base to above the top, and the fixing bracket fixes the second bearing.

5. The charging pile swing arm device according to claim 4, characterized in that: A bearing seat for accommodating and fixing the first bearing is arranged at the bottom of the base.

6. The charging pile swing arm device according to claim 5, characterized in that: The outer ring of the first bearing contacts the bottom surface of the bearing seat, while the inner ring of the first bearing does not contact the bottom surface of the bearing seat; the outer ring of the second bearing contacts the bottom surface of the fixed bracket, while the inner ring of the second bearing does not contact the bottom surface of the fixed bracket.

7. The charging pile swing arm device according to claim 4, characterized in that: A first buffer block is arranged between the fixing bracket and the swing arm.

8. The charging pile swing arm device according to claim 2, characterized in that: The swing arm is connected to the main body of the second part of the main shaft, and the inner end of the coil spring is connected to the main body of the first part of the main shaft.

9. The charging pile swing arm device according to claim 2, characterized in that: A first bearing is arranged at the end of the first part of the main shaft, a second bearing located in the main body of the first part of the main shaft is arranged at the top inner side of the base, and the second part of the main shaft is connected to the swing arm via a fixed connector.

10. The charging pile swing arm device according to claim 9, characterized in that: A first buffer block bracket and a first buffer block arranged on the first buffer block bracket are also arranged on the top of the base.

11. The charging pile swing arm device according to claim 9, characterized in that: A first buffer block bracket and a first buffer block arranged on the first buffer block bracket are also arranged on the top of the base.

12. The charging pile swing arm device according to claim 3, characterized in that: The connection position between the first part and the second part is provided with an annular protrusion, and the annular protrusion is clamped on the top surface of the base to limit the swing arm in the axial direction.

13. The charging pile swing arm device according to claim 12, characterized in that: A first annular gasket is arranged between the swing arm and the annular protrusion, and a first special-shaped gasket is arranged between the swing arm and the second bearing. The first special-shaped gasket contacts the inner ring of the second bearing but does not contact other positions of the second bearing.

14. The charging pile swing arm device according to claim 1, characterized in that: A coil spring installation chamber is provided inside the base, a clamping groove is provided on the inner wall of the coil spring installation chamber, and the outer end of the coil spring is hung on the clamping groove.

15. The charging pile swing arm device according to claim 1, characterized in that: The swing arm includes a main arm connected to the second portion of the main shaft and a secondary arm connected to the main arm, wherein the secondary arm is configured to swing around the main arm.

16. The charging pile swing arm device according to claim 15, characterized in that: The auxiliary arm is connected to the main arm through a secondary shaft, and a third bearing and a fourth bearing are respectively provided at a first end and a second end of the secondary shaft.

17. The charging pile swing arm device according to claim 16, characterized in that: The third bearing is fixedly installed in the bearing hole of the main arm, and the fourth bearing is fixed by a raised portion located on the secondary shaft and a bearing baffle.

18. The charging pile swing arm device according to claim 17, characterized in that: The outer ring of the third bearing contacts the bottom surface of the bearing hole, the inner ring of the third bearing does not contact the bottom surface of the bearing hole, the outer ring of the fourth bearing contacts the bottom surface of the bearing baffle plate, the inner ring of the fourth bearing does not contact the bottom surface of the bearing baffle plate, and the raised portion supports the inner ring of the fourth bearing.

19. The charging pile swing arm device according to claim 15, characterized in that: The auxiliary arm is connected to the main arm through a torsion spring, the torsion spring is sleeved on the auxiliary arm, and two ends of the torsion spring are respectively connected to the main arm and the auxiliary arm.

20. The charging pile swing arm device according to claim 15, characterized in that: A second buffer block is arranged between the auxiliary arm and the main arm.

21. The charging pile swing arm device according to claim 1, characterized in that: The swing arm includes a main body portion and a connecting portion located at at least one end of the main body portion, and the connecting portion is used to connect the main shaft.

22. The charging pile swing arm device according to claim 21, characterized in that: A portion of the connecting portion extends into the main body portion and is fixed by a cylindrical pin located on the side wall of the main body portion, and the connecting portion and the end portions of the main body portion are welded.

23. A charging pile, characterized in that: include: Charging pile body; The charging pile swing arm device according to any one of claims 1 to 22, mounted on the charging pile body; A charging gun, wherein a gun line of the charging gun is flexibly connected to the free end of the swing arm of the charging pile swing arm device through a cable clamp that clamps one end of the gun line.

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