Flexible wire dragging device and method for stereo garage charging pile

Abstract

The invention relates to the field of charging piles, in particular to a flexible wire dragging device and method for a stereo garage charging pile. Comprising a charging pile side rotating shaft column arranged on the ground and a connecting chain connected with the charging pile side rotating shaft column, the other end of the connecting chain is connected with a parking space side fixing head, and the two ends of the connecting chain are connected with the charging pile side rotating shaft column and the parking space side fixing head through end assemblies respectively; the connecting chains comprise at least one long-distance chain and at least one short-distance chain, the number of the long-distance chains and the number of the short-distance chains are increased or decreased according to the swing amplitude requirement of the garage car carrying plate, and then the connecting chains with different lengths are combined. When the device is actually applied, the length of the cable between the charging pile and the vehicle carrying plate can be effectively reduced, the material cost is reduced, the weight of the cable is reduced, the layout of the whole charging system is simple and efficient, unnecessary length waste is reduced, and the cost is effectively controlled while the charging efficiency is ensured.

Description

Technical Field

[0001] The present invention relates to the field of charging piles, and in particular to a flexible cable dragging device and method for a charging pile in a stereo garage. Background Art

[0002] With the increasing number of electric vehicles, stereo garages with charging functions are becoming increasingly popular. One end of the charging gun in the stereo garage is fixedly connected to the charging pile, and the other end is fixed to the garage loading plate to charge electric vehicles. In order to facilitate the storage of cars in the garage and improve the utilization rate of the stereo garage, the loading plate needs to be moved left and right frequently, causing the cable between the charging pile and the loading plate to frequently swing left and right, causing wear on this section of the cable, and posing a leakage hazard to the equipment and operators. At the same time, with the popularity of fast charging piles, the diameter of the gun wire also increases with the increase in current carrying capacity. For example, the diameter of the gun wire of the fast charging pile with more than 200A on the market is generally greater than 25mm. The cost of thick cables cannot be ignored, and the cable length needs to be controlled to reduce the cost of charging piles.

[0003] like Figure 1 As shown, in the existing stereo garage, the cable between the charging pile and the vehicle loading plate is generally placed in a drag chain installed in a transverse movement, and moves with the vehicle loading plate in the matching drag chain track. Since the drag chain stroke needs to meet the lateral movement distance of the vehicle loading plate, the length of the drag chain needs to be greater than 2 times the lateral movement distance of the vehicle loading plate to ensure the lateral movement of the vehicle loading plate, which in turn causes the length of the cable installed inside the drag chain to also need to be greater than 2 times the lateral movement distance of the vehicle loading plate, which results in a long cable length. In addition, the bending radius of the cable usually needs to be greater than 6 times the cable diameter, especially the charging pile liquid cooling cable that has appeared in recent years, which has a larger bending radius and needs to be greater than 8 times the gun line diameter. The height dimension of the drag chain structure will be greater than the height of the bottom of the vehicle from the ground, and there is a risk of the car hitting the drag chain. The drag chain is installed in the guide rail. When foreign objects enter the guide rail or enter the gap inside the drag chain, it is easy to get stuck and cause the drag chain function to fail. Summary of the invention

[0004] In response to the problems mentioned in the prior art, the present invention proposes a flexible cable towing device and method for a charging pile in a stereoscopic garage. The shorter cable length can solve the problems of lateral swing of the vehicle loading plate and wear of the cable when dragging on the ground. At the same time, the structure is simple and occupies less space, further improving the space utilization of the stereoscopic garage.

[0005] In order to achieve the above object, the present invention adopts the following technical solution: The present invention discloses a flexible towing wire device for a charging pile in a three-dimensional parking garage, comprising a charging pile side rotating shaft column arranged on the ground and a connecting chain connected to the charging pile side rotating shaft column, wherein the other end of the connecting chain is connected to a parking space side fixed head, wherein the two ends of the connecting chain are respectively connected to the charging pile side rotating shaft column and the parking space side fixed head through an end head assembly; The connecting chain includes at least one long-distance chain and at least one short-distance chain. The number of the long-distance chains and the short-distance chains is increased or decreased according to the swing amplitude requirement of the garage loading plate, thereby combining them into connecting chains of different lengths.

[0006] As a further improvement of the present invention, the charging pile side rotating shaft column includes a rotating shaft column body and a first bearing assembly arranged on the rotating shaft column body, and a first limit pin is also arranged on the inner wall of the rotating shaft column body.

[0007] As a further improvement of the present invention, the long-distance chain body includes a long-distance chain body, a top cover is connected to the top of the long-distance chain, and a universal wheel is provided at the bottom, wherein second bearing assemblies are provided at both ends of the long-distance chain body, and a second limit pin is also provided on the side of the long-distance chain body facing the second bearing assembly.

[0008] As a further improvement of the present invention, the short-spacing chain includes a short-spacing chain body and a second protective cover connected to the short-spacing chain body. A second pin is symmetrically arranged at the bottom of the short-spacing chain body, and the short-spacing chain body is connected to the second protective cover by screws; and protective strips are also arranged on both sides of the second protective cover to prevent the cable from being scratched.

[0009] As a further improvement of the present invention, the parking space side fixing head includes an upper main body and a lower main body which are detachably connected, wherein a cable bearing is provided at one end of the lower main body, and a third bearing assembly and a third limit pin are installed at the other end; wherein one end of the lower main body on which the third bearing assembly is installed is also connected to a fixing head cover.

[0010] As a further improvement of the present invention, the lower body is provided with a semicircular groove for connecting with the cable bearing bush, and the cable bearing bush can rotate in the groove.

[0011] As a further improvement of the present invention, the terminal assembly includes a terminal body and a first protective cover connected to the terminal body. A first pin is symmetrically provided at the bottom of the terminal body, and the terminal body and the first protective cover are connected by screws; protective strips are also provided on both sides of the first protective cover to prevent scratches on the cable.

[0012] As a further improvement of the present invention, limit grooves are also provided on the end body and the short-distance chain for limiting the rotation angles of the rotating shaft column on the charging pile side, the long-distance chain, the short-distance chain, and the fixed head on the parking space side.

[0013] As a further improvement of the present invention, the slotting angle of the limiting slot is α, and the range of α is 20° to 180°.

[0014] A method for a flexible towing wire device for a stereo garage charging pile comprises the following steps: This device is assembled between the charging pile and the vehicle loading plate, wherein the charging pile side rotating shaft column close to the charging pile side is fixed on the ground near the charging pile, and the parking space side fixing head is installed on the vehicle loading plate. When the vehicle loading plate moves laterally, it drives the parking space side fixing head fixed thereon to move. The cable is inside this device and is used to charge the vehicle parked on the vehicle loading plate.

[0015] Compared with the prior art, the present invention has achieved the following technical effects: When used in practice, this device can effectively reduce the cable length between the charging pile and the vehicle loading plate, which not only reduces the material cost, but also reduces the weight of the cable, making the layout of the entire charging system simple and efficient, reducing unnecessary length waste, and effectively controlling costs while ensuring charging efficiency.

[0016] The overall height of the device is relatively low, so that the cables on the vehicle loading plate side can fully utilize the space at the bottom of the vehicle, avoiding the waste of space resources and effectively improving the space utilization rate.

[0017] The height of the device is designed to be lower than the bottom height of most vehicles, effectively avoiding the risk of collision that may occur during driving or parking of the car. It not only protects the cables from physical damage, but also extends the service life of the device and reduces the maintenance costs caused by accidental collisions.

[0018] The device adopts universal wheel auxiliary support, so that the flexible towing device can flexibly adapt to various terrain conditions without the need for additional guide rails, which not only improves the adaptability and flexibility of the device but also reduces the installation cost.

[0019] A cover is provided on the top of the device as a whole, which can completely cover the cables, effectively preventing foreign objects from falling into the device, thereby avoiding the risk of cable failure due to jamming. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 It is a schematic diagram of the prior art structure; Figure 2 A connection diagram for use in the present invention; Figure 3 It is a schematic diagram of the overall structure of the present invention; Figure 4 This is a schematic diagram of the side shaft column structure of the charging pile of the present invention; Figure 5 It is a schematic diagram of the structure of the terminal assembly of the present invention; Figure 6 This is a schematic diagram of the long-distance chain structure of the present invention; Figure 7 It is a schematic diagram of the short-distance chain structure of the present invention; Figure 8 This is a schematic diagram of the parking space side fixing head structure of the present invention; Fig. 9This is an exploded view of the parking space side fixing head structure of the present invention; Fig.10 This is a schematic diagram of the cable bearing structure of the present invention; Fig.11 It is a schematic diagram of the limiting groove of the terminal assembly of the present invention; Fig.12 This is a schematic diagram of the limiting groove of the present invention from another angle; Fig.13 Schematic diagram of the present invention in use.

[0020] Figure markings: 2-1, charging pile; 2-2, flexible towing device; 2-3, vehicle loading plate; 2-4, cable; 3-1, charging pile side shaft column; 3-2, terminal assembly; 3-3, long-distance chain; 3-4, short-distance chain; 3-5, parking space side fixed head; 4-1, shaft column body; 4-2, first bearing assembly; 4-3, first limit pin; 5-1, terminal body; 5-2, first protective cover; 5-3, first pin shaft; 6-1, long-distance chain body; 6-2, second bearing assembly; 6-3, universal wheel; 6-4, top cover; 6-5, second limit pin; 7-1, short-distance chain body; 7-2, second pin shaft; 7-3, second protective cover; 8-1, lower body; 8-2, upper body; 8-3, fixed head cover; 8-4, third bearing assembly; 8-5, third limit pin; 8-6, cable bearing. DETAILED DESCRIPTION

[0021] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, 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 the present invention can be understood according to specific circumstances.

[0025] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0026] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0027] It should also be understood that the terms used in the present specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the present specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0028] It should be further understood that the term "and / or" used in the present description and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0029] Various structural schematic diagrams of the embodiments disclosed in the present invention are shown in the accompanying drawings. These figures are not drawn to scale, and some details are magnified and some details may be omitted for the purpose of clear expression. The shapes of various regions and layers shown in the figures and the relative sizes and positional relationships therebetween are only exemplary, and may deviate in practice due to manufacturing tolerances or technical limitations, and those skilled in the art may additionally design regions / layers with different shapes, sizes, and relative positions according to actual needs.

[0030] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0031] Figure 1 The figure shows a schematic diagram of the structure of the prior art. The disadvantages of the prior art have been explained in the background technology and will not be elaborated here.

[0032] Figure 2 and Figure 3 As shown, the present invention provides a flexible towing line device for a charging pile in a stereo garage, comprising a charging pile side rotating shaft column 3-1 arranged on the ground and a connecting chain connected to the charging pile side rotating shaft column 3-1, and the other end of the connecting chain is connected to a parking space side fixed head 3-5, wherein both ends of the connecting chain are respectively connected to the charging pile side rotating shaft column 3-1 and the parking space side fixed head 3-5 through an end head assembly 3-2; the connecting chain comprises at least one long-distance chain 3-3 and at least one short-distance chain 3-4, and the number of the long-distance chain 3-3 and the short-distance chain 3-4 is increased or decreased according to the swing amplitude requirement of the garage loading plate 2-3, thereby combining into connecting chains of different lengths.

[0033] The charging pile side rotating shaft column 3-1 in the embodiment is close to the charging pile 2-1 and is set on the ground, and the parking space side fixed head 3-5 is fixed on the vehicle loading plate 2-3, and can move left and right with the vehicle loading plate 2-3. The cable 2-4 connected to the charging pile 2-1 passes through this device and is used to charge the vehicle parked on the vehicle loading plate 2-3; the long-distance chain 3-3 and the short-distance chain 3-4 in the embodiment can be configured and installed in different quantities according to the swing amplitude of the vehicle loading plate 2-3 to form flexible towing line devices 2-2 of different lengths.

[0034] The charging pile side shaft column 3-1 includes a shaft column body 4-1 and a first bearing assembly 4-2 arranged on the shaft column body 4-1. The inner wall of the shaft column body 4-1 is also provided with a first limit pin 4-3. Figure 4 As shown, the shaft column body 4-1 is preferably made of sheet metal. The shaft column body 4-1 includes a base and a cylinder arranged on the base. Long circular holes are provided at both ends of the base, and screws or bolts are used to fix the shaft column on the side of the charging pile 2-1 to the ground. A first bearing assembly 4-2 is provided in the cylinder, and a first limit pin 4-3 is provided on the inner wall of the cylinder. The first limit pin 4-3 is used to be connected to the limit structure.

[0035] The terminal assembly 3-2 includes a terminal body 5-1 and a first protective cover 5-2 connected to the terminal body 5-1. A first pin shaft 5-3 is symmetrically arranged at the bottom of the terminal body 5-1. The terminal body 5-1 and the first protective cover 5-2 are connected by screws. Guard strips are also arranged on both sides of the first protective cover 5-2 to prevent scratches on the cable 2-4.

[0036] Implementation example Figure 5 As shown, the terminal body 5-1 is preferably made of sheet metal, the two ends of the terminal body 5-1 are arranged as arcs, and the bottom of the two ends is provided with a first pin 5-3 at the center of the arc. The terminal body 5-1 is installed with a first protective cover 5-2 by screws, and the first protective cover 5-2 is used to protect the cable 2-4. Figure 5 In the embodiment, the edges of both sides of the first protective cover 5-2 are also equipped with protective strips to prevent the edges from scratching the cables 2-4.

[0037] When connecting, the end assembly 3-2 of this embodiment is installed between the rotating shaft column 3-1 on the charging pile side and the long-distance chain 3-3, and between the long-distance chain 3-3 and the fixed head 3-5 on the parking space side; when connecting specifically, taking the connection between the rotating shaft column 3-1 on the charging pile side and the long-distance chain 3-3 as an example, the first pin shaft 5-3 on the left side of the end assembly 3-2 is inserted into the first bearing assembly 4-2 in the rotating shaft column on the charging pile 2-1 side, and the first pin shaft 5-3 on the right side of the end assembly 3-2 is inserted into the second bearing assembly 6-2 in the long-distance chain 3-3 to achieve the connection.

[0038] like Figure 5 , Fig.11 and Fig.12 As shown, the edges of the arc parts at both ends of the end body 5-1 are provided with limit grooves, which are used to limit the rotation angles of the charging pile side rotating shaft column 3-1, the long distance chain 3-3, and the parking space side fixed head 3-5; taking the connection of the charging pile side rotating shaft column 3-1 and the long distance chain 3-3 as an example, when the end head assembly 3-2 connects the charging pile side rotating shaft column 3-1 with the long distance chain 3-3, the first limit pin 4-3 in the charging pile side rotating shaft column 3-1 will be set in the limit groove (as shown in FIG. Fig.11 As shown), the second limiting axis in the long-distance chain 3-3 is also arranged in the limiting groove. When the first limiting pin 4-3 or the second limiting pin 6-5 contacts the edge of the limiting groove, the end body 5-1 will be prevented from continuing to rotate, thereby playing an angle limiting role.

[0039] Fig.12 The slotting angle of the middle limit slot is α, and α can be set to different slotting angle ranges according to different actual usage scenarios. Generally, the angle range of α is 20° to 180°, and the preferred embodiment is 120°.

[0040] The long-distance chain 3-3 comprises a long-distance chain body 6-1, a top cover 6-4 is connected to the top of the long-distance chain body 6-1, a universal wheel 6-3 is arranged at the bottom, and second bearing assemblies 6-2 are arranged at both ends of the long-distance chain body 6-1, and a second limit pin 6-5 is also arranged on the side of the long-distance chain body 6-1 facing the second bearing assembly 6-2. Figure 6 As shown, the long-distance chain body 6-1 is preferably made of sheet metal, and both ends of the long-distance chain body 6-1 are arranged as arcs, and the second bearing components 6-2 are respectively arranged at the centers of the arcs at both ends. Figure 6 As shown, the second bearing assembly 6-2 can be used to connect with the first pin 5-3 in the end assembly 3-2 or the second pin 7-2 in the short-distance chain 3-4; a top cover 6-4 is installed on the top of the long-distance chain body 6-1 by screws, and the top cover 6-4 is used to protect the cable 2-4. The edges of both sides of the top cover 6-4 are also equipped with guard strips to prevent the edges from scratching the cable 2-4.

[0041] In the embodiment, the arc parts at both ends of the long-distance chain body 6-1 are arranged lower than the middle of the long-distance chain body 6-1, and a second limit pin 6-5 is provided on the sunken surface of the arc in the middle of the long-distance chain body 6-1 and at both ends of the long-distance chain body 6-1, and the first limit pin 4-3 matches the limit groove on the end head assembly 3-2 and the limit groove on the short-distance chain 3-4; there is also a universal wheel 6-3 at the bottom of the long-distance chain body 6-1, and the universal wheel 6-3 facilitates the device to move back and forth.

[0042] The short-distance chain 3-4 includes a short-distance chain body 7-1 and a second protective cover 7-3 connected to the short-distance chain body 7-1. A second pin shaft 7-2 is symmetrically arranged at the bottom of the short-distance chain body 7-1. The short-distance chain body 7-1 is connected to the second protective cover 7-3 by screws; guard strips are also arranged on both sides of the second protective cover 7-3 to prevent scratches on the cable 2-4.

[0043] like Figure 7 As shown, in the embodiment, the short-distance chain body 7-1 is preferably made of sheet metal, and both ends of the short-distance chain body 7-1 are arranged in arcs, and the two ends are respectively provided with second pins 7-2 at the centers of the arcs, and the second pins 7-2 are used to connect with the second bearing assembly 6-2 in the long-distance chain 3-3. Figure 7 As shown, the second pin shaft 7-2 located on the left is inserted into the second bearing assembly 6-2 of one of the long-distance chains 3-3, and the second pin shaft 7-2 located on the right is inserted into the second bearing assembly 6-2 of the other long-distance chain 3-3 to achieve connection.

[0044] In the embodiment, a second protective cover 7-3 is installed on the top of the short-distance chain body 7-1 by screws. The second protective cover 7-3 is used to protect the cable 2-4. The edges of the two sides of the top cover 6-4 are also equipped with protective strips to prevent the edges from scratching the cable 2-4.

[0045] Figure 7 Limiting grooves are provided on the edges of the arc parts at both ends of the medium and short-distance chain main body 7-1, which are used to limit the rotation angle of the long-distance chain 3-3; when the long-distance chain 3-3 is connected with the short-distance chain 3-4, the second limiting pin 6-5 in the long-distance chain 3-3 will be set in the limiting groove on the short-distance chain 3-4. When the second limiting pin 6-5 contacts the edge of the limiting groove, it will prevent the long-distance chain 3-3 from continuing to rotate, thereby playing an angle limiting role.

[0046] The parking space side fixed head 3-5 comprises an upper body 8-2 and a lower body 8-1 which are detachably connected. One end of the lower body 8-1 is provided with a cable bearing 8-6, and the other end is provided with a third bearing assembly 8-4; wherein one end of the lower body 8-1 provided with the third bearing assembly 8-4 is also connected to a fixed head cover 8-3. The lower body 8-1 is provided with a semicircular slot for connecting with the cable bearing 8-6, and the cable bearing 8-6 can rotate in the slot.

[0047] like Figure 8 As shown, the upper body 8-2 and the lower body 8-1 of the embodiment are both made of sheet metal, the lower body 8-1 is arranged in a stepped manner, the right end of the lower body 8-1 is arranged higher than the left end, the left end of the lower body 8-1 is used to connect with the terminal assembly 3-2, a third bearing assembly 8-4 is provided at the arc center of the left end of the lower body 8-1, the third bearing assembly 8-4 is used to connect with the first pin shaft 5-3, a third limit pin 8-5 is provided on the sunken surface at the left end of the lower body 8-1 and the middle of the lower body 8-1, and the third limit pin 8-5 matches the limit groove in the terminal assembly 3-2; a fixed head cover 8-3 is also provided at the left end of the lower body 8-1 by screws, and the fixed head cover 8-3 is used to protect the cable 2-4.

[0048] like Fig. 9 As shown, a semi-circular slot is provided on the right side of the lower body 8-1, and a semi-circular slot is also provided on the right side of the upper body 8-2. The two slots can form a complete circular slot, which is used to connect with the cable bushing 8-6; Fig.10 As shown, the cable bearing 8-6 is composed of a pair of symmetrical semicircular bearings, the outer ends of the semicircular bearing have flanges, the inner circle has a corrugated structure to increase the friction with the cable 2-4, and chamfers are left at the arcs on both sides of the inner circle to prevent the edges from damaging the cable 2-4; the cross-section of the semicircular bearing has a snap nail on one side and a matching snap groove on the other side. The two semicircular bearings are assembled in pairs on the outer wall of the cable 2-4 by snapping, and the cable 2-4 is squeezed and fixed by the corrugated structure of the inner wall.

[0049] In this embodiment, the cable bearing 8-6 is clamped in the groove formed by the lower main body 8-1 and the upper main body 8-2 through the flange on the outer circle to prevent friction between the cable 2-4 and the lower main body 8-1 and the upper main body 8-2. The cable bearing 8-6 can rotate freely coaxially in the groove to prevent stress concentration during the movement of the cable 2-4, thereby protecting the cable 2-4.

[0050] In the embodiment, the facades of the lower body 8-1 and the upper body 8-2 are turned over and aligned, and through holes are provided on the facades, through which screws can pass to fix the parking space side fixing head 3-5 on the vehicle loading plate 2-3.

[0051] like Fig.13 As shown, when in use, the flexible towing line device 2-2 is assembled between the charging pile 2-1 and the vehicle loading plate 2-3, wherein the charging pile side rotating shaft column 3-1 close to the charging pile 2-1 is fixed on the ground near the charging pile 2-1, and the parking space side fixing head 3-5 is installed on the vehicle loading plate 2-3. In order to shorten the length of the cable 2-4, the charging pile 2-1 and the charging pile side rotating shaft column 3-1 in the flexible towing line device 2-2 can be optionally installed on the central axis of the travel position of the vehicle loading plate 2-3.

[0052] Use the cable bearing 8-6 to clamp the cable 2-4 and fix it in the slot of the fixed head 3-5 on the parking space side, and place the cable 2-4 between the vehicle loading plate 2-3 and the charging pile 2-1 inside the top cover 6-4, the second protective cover 7-3, the fixed head cover 8-3 and the first protective cover 5-2.

[0053] When the vehicle loading plate 2-3 moves horizontally, the parking space side fixed head 3-5 fixed thereon moves, and then the flexible towing wire device 2-2 moves left and right following the vehicle loading plate 2-3; In this device, the first limit pin 4-3 in the rotating shaft column 3-1 on the charging pile side, the limit groove in the end assembly 3-2, the second limit pin 6-5 in the long-distance chain 3-3, the limit groove of the short-distance chain 3-4 and the third limit pin 8-5 in the fixed head 3-5 on the parking space side cooperate with each other to limit the rotation angle of each connected component, thereby limiting the minimum bending radius of the cable 2-4 to prevent the cable 2-4 from being damaged by excessive bending.

[0054] The universal wheel 6-3 on the long-distance chain 3-3 is in contact with the ground, so that the flexible towing device 2-2 is separated from the ground, the cable 2-4 is prevented from rubbing against the ground, and the flexible towing device 2-2 can be easily moved.

[0055] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0056] In addition, it should be understood that although this specification is described in accordance with the implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art. The above content is only to illustrate the technical idea of ​​the present invention, and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution according to the technical idea proposed by the present invention shall fall within the protection scope of the claims of the present invention.

Claims

1. A flexible cable-pulling device for a stereo garage charging pile, characterized in that: It includes a charging pile side shaft column arranged on the ground and a connecting chain connected to the charging pile side shaft column, the other end of the connecting chain is connected to the parking space side fixed head, wherein the two ends of the connecting chain are respectively connected to the charging pile side shaft column and the parking space side fixed head through the end head assembly; The connecting chain includes at least one long-distance chain and at least one short-distance chain. The number of the long-distance chains and the short-distance chains is increased or decreased according to the swing amplitude requirement of the garage loading plate, thereby combining them into connecting chains of different lengths.

2. According to claim 1, a flexible cable-pulling device for a charging pile in a stereo garage is characterized in that: The charging pile side rotating shaft column includes a rotating shaft column body and a first bearing assembly arranged on the rotating shaft column body, and a first limiting pin is also arranged on the inner wall of the rotating shaft column body.

3. According to claim 1, a flexible cable-pulling device for a charging pile in a stereo garage is characterized in that: The long-distance chain comprises a long-distance chain body, a top cover is connected to the top of the long-distance chain body, a universal wheel is arranged at the bottom, second bearing assemblies are arranged at both ends of the long-distance chain body, and a second limiting pin is also arranged on the side of the long-distance chain body facing the second bearing assembly.

4. According to claim 1, a flexible towing wire device for a stereo garage charging pile is characterized in that: The short-distance chain comprises a short-distance chain body and a second protective cover connected to the short-distance chain body, a second pin is symmetrically arranged at the bottom of the short-distance chain body, and the short-distance chain body and the second protective cover are connected by screws; Guard strips are also provided on both sides of the second protective cover to prevent the cables from being scratched.

5. According to claim 1, a flexible cable-pulling device for a charging pile in a stereo garage is characterized in that: The parking space side fixing head comprises an upper body and a lower body which are detachably connected, one end of the lower body is provided with a cable bearing bush, and the other end is provided with a third bearing assembly and a third limit pin; The lower body is installed with a third bearing assembly and one end is also connected with a fixed head cover.

6. According to claim 5, a flexible cable-pulling device for a charging pile in a stereo garage is characterized in that: The lower body is provided with a semicircular slot for connecting with the cable bearing bush, and the cable bearing bush can rotate in the slot.

7. According to claim 1, a flexible cable-pulling device for a charging pile in a stereo garage is characterized in that: The terminal assembly includes a terminal body and a first protective cover connected to the terminal body, a first pin is symmetrically arranged at the bottom of the terminal body, and the terminal body and the first protective cover are connected by screws; Guard strips are also provided on both sides of the first protective cover to prevent the cables from being scratched.

8. According to claim 1, a flexible cable-pulling device for a charging pile in a stereo garage is characterized in that: Limiting grooves are also provided on the end body and the short-distance chain to limit the rotation angles of the rotating shaft column on the charging pile side, the long-distance chain, the short-distance chain, and the fixed head on the parking space side.

9. A flexible cable-pulling device for a charging pile in a stereo garage according to claim 8, characterized in that: The slotting angle of the limiting slot is α, and the range of α is 20° to 180°.

10. A method for a flexible towing wire device for a charging pile in a stereo garage according to any one of claims 1 to 9, characterized in that: The following steps are involved: This device is assembled between the charging pile and the vehicle loading plate, wherein the charging pile side rotating shaft column close to the charging pile side is fixed on the ground near the charging pile, and the parking space side fixing head is installed on the vehicle loading plate. When the vehicle loading plate moves laterally, it drives the parking space side fixing head fixed thereon to move. The cable is inside this device and is used to charge the vehicle parked on the vehicle loading plate.

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