Folding device for protecting charging gun line of lifting and transverse moving stereo parking garage

Abstract

The utility model discloses a folding device for protecting a charging gun line of a lifting and transverse moving three-dimensional parking garage. The device is internally provided with a groove used for laying the charging gun line, and each charging gun line comprises a fixed end and a follow-up end. Wherein the fixed end is directly or indirectly fixedly connected with a top layer garage steel framework or a middle layer transverse moving framework of the three-dimensional parking garage, and the follow-up end is directly or indirectly fixedly connected with the lifting vehicle carrying tray. The cross-layer drag chain can effectively prevent the cross-layer drag chain from being too long or drooping to extend into the transverse moving channel of the adjacent lower-layer parking area to collide with a frame or an object, and has the advantages of preventing the charging gun line from drooping and colliding, improving the equipment reliability and reducing the maintenance cost, so that safe and stable operation of the charging line of the stereo parking garage is guaranteed; the service life of the cable and the drag chain is obviously prolonged, the design occupies a small space, the installation and maintenance are simple and convenient, the shutdown maintenance frequency of the system is reduced, and the overall operation efficiency and reliability are improved.

Description

Technical Field

[0001] This application relates to the field of charging and swapping of new energy vehicles, and in particular to a folding device for protecting the charging gun cable in a vertical and horizontal moving multi-level parking garage. Background Technology

[0002] As a type of mechanical multi-level parking garage, lift-and-slide automated parking systems have been widely adopted with the modernization of cities and the rapid growth of car ownership. These systems allow for multi-level vehicle storage and retrieval within limited space, maximizing vertical space utilization and significantly alleviating the problem of insufficient ground-level parking spaces. Existing lift-and-slide systems are controlled by PLCs, achieving a high level of automation and low-noise operation, while also offering advantages such as energy saving, environmental friendliness, and ease of operation.

[0003] Currently, mechanical automated parking systems mainly include various forms such as lift-and-slide, lane stacking, vertical lifting, horizontal circulation, multi-level circulation, and circular horizontal circulation systems. Among them, the lift-and-slide automated parking system combines vertical lifting and horizontal sliding mechanisms, which can flexibly adapt to different site heights and parking space requirements, and is one of the most common modular design solutions on the market.

[0004] Specifically, existing lift-and-slide automated parking systems consist of three parts: a bottom parking area (where only the lateral frame moves back and forth along the horizontal beams to allow vehicles to enter and exit), an intermediate parking area (where both the lift-carrying pallets move up and down along the longitudinal guide rails and the lateral movement device moves left and right on the horizontal beams), and a top parking area (where only the lift-carrying pallets are used for vertical movement). Empty parking spaces must be reserved in the bottom and intermediate levels to allow for vehicle lifting mechanism exchanges. The system is driven by sprockets, chains (or steel cables), etc., using longitudinal guide rails to lift the pallets and horizontal beams to move them laterally. Vehicles on each level move laterally to their designated parking spaces or passageways after reaching their designated level. The number of levels and rows can be freely set according to the site height, offering flexible configuration, low failure rate, and fast entry and exit speeds.

[0005] To meet the charging needs of new energy vehicles, our company previously designed a charging device and a lifting and sliding vertical warehouse (CN222346791U) for use in such warehouses. The charging piles and charging gun holders on each pallet are wired through components such as cable brackets, cable chains, and guide channels. After the cables are led out from the ground charging piles, they pass through the guide channel fixing frame and guide channels, and are then wrapped by cable chains and cable brackets before finally being fixed to the charging gun holders on the lifting vehicle pallet, so as to ensure that the power supply lines move with the pallet and are not exposed.

[0006] However, for a two-story automated storage and retrieval system (AS / RS), although the cable carriers containing cables will not sag, the highest point of the load on the ground floor's transverse frame may touch the cables on the second floor. Furthermore, considering that for high-story AS / RS, when the cable carriers (containing cables) are laid across multiple floors, excessively long chain links may cause the sagping cable carriers to easily extend into the transverse channels of adjacent floors, colliding with and / or snagging on the longitudinal beams of the transverse frame or the highest point of the load, limit screws, or photoelectric switches, which could lead to damage to the cable insulation and jamming of the pallet transverse movement. The higher the number of floors in the AS / RS, the greater the potential hazard, and in severe cases, it may even cause safety failures.

[0007] If the wiring is damaged, such as by scratches or pressure causing the insulation layer to break, it will affect the safety of the power supply. If the equipment jams and the cable chain gets stuck in the guide groove of the transverse frame, the pallet will not be able to complete the horizontal displacement normally. It may be necessary for maintenance personnel to manually climb the frame to inspect and disassemble the cable chain, which increases the difficulty of maintenance and safety risks; and even requires machine shutdown to troubleshoot, affecting the overall parking garage entry and exit efficiency.

[0008] To address the aforementioned issues, existing technologies urgently need improvement. Utility Model Content

[0009] To address at least one of the problems existing in the prior art described above, this application provides a folding device for protecting the charging gun cable in a vertical parking garage. The vertical parking garage includes at least two parking areas. The bottom parking area is equipped with a horizontal frame, the top parking area is equipped with a lifting vehicle pallet, and the middle parking area is equipped with both a horizontal frame and a lifting vehicle pallet. The lifting vehicle pallet moves vertically along the longitudinal direction, while the horizontal frame only moves laterally to make way for vehicles exiting the upper level. A charging gun holder is provided on the lifting vehicle pallet, and a charging gun is provided on the charging gun holder. The charging gun cable is led from the charging pile on the ground to the lifting vehicle pallet on the corresponding level, and then laid sequentially through the folding device before finally being placed on the charging gun holder.

[0010] The non-bottom parking area is equipped with a folding device, which has a groove inside for laying the charging gun cable. The folding device includes a fixed end and a follower end. The fixed end is directly or indirectly fixedly connected to the steel frame of the top floor garage or the transverse frame of the middle floor of the multi-level parking garage, and the follower end is directly or indirectly fixedly connected to the lifting vehicle pallet.

[0011] In the folding device for protecting the charging gun line of the lifting and traversing multi-level parking garage as described above, optionally, the fixed end of the folding device is connected to the steel frame of the top floor garage or the traversing frame of the middle floor of the multi-level parking garage through a first transition unit, and the follower end is connected to the lifting vehicle pallet through a second transition unit.

[0012] In the folding device for protecting the charging gun cable in the lifting and traversing three-dimensional parking garage described above, the first transition unit is optionally a rigid connecting arm with a groove inside for laying the charging gun cable.

[0013] In the folding device for protecting the charging gun wire in the lifting and traversing three-dimensional parking garage as described above, the second transition unit is optionally a longitudinal flexible drag chain, which is used to lay the charging gun wire inside.

[0014] As the follower end moves upward, the lowest point of the second transition unit in the folded and closed state of the folding device is always higher than the highest point of the transverse frame or its load in the next parking area.

[0015] In the folding device for protecting the charging gun cable in the lifting and traversing three-dimensional parking garage as described above, optionally, one end of the longitudinal flexible drag chain is connected to the follower end through a force transmission auxiliary unit, and the other end is fixedly connected to the lifting vehicle pallet; when the longitudinal flexible drag chain moves upward with the lifting vehicle pallet, it provides an additional lifting force in the folding and retraction direction to the folding device.

[0016] In the folding device for protecting the charging gun line in the lifting and traversing three-dimensional parking garage as described above, optionally, the folding device includes at least two and an even number of connecting units, and the sum of the lengths of the plurality of connecting units is greater than the height from the ground floor to the parking level.

[0017] Each adjacent connection unit is movably connected to the other, and every two connection units form a first-level folded layer.

[0018] In the folding device for protecting the charging gun cable in the lifting and traversing three-dimensional parking garage as described above, optionally, each adjacent connecting unit is movably connected by a multi-axis synchronous hinge; wherein, the multi-axis synchronous hinge supports synchronous folding of multi-level folding mechanisms, has a built-in limit slot, and limits the maximum folding angle to 180° to prevent over-expansion.

[0019] In the folding device for protecting the charging gun wire in the lifting and traversing three-dimensional parking garage described above, the cross-section of the connecting unit is optionally U-shaped or C-shaped, used for laying the charging gun wire.

[0020] In the folding device for protecting the charging gun line of the lifting and traversing multi-level parking garage as described above, the fixed end may optionally be directly or indirectly fixed to the middle section of the traversing frame of the top floor garage steel frame or the middle floor of the multi-level parking garage.

[0021] In the folding device for protecting the charging gun line of the lifting and traversing multi-level parking garage as described above, the fixed end may optionally be directly or indirectly fixed to the side of the traversing frame of the top floor garage steel frame or the middle floor of the multi-level parking garage.

[0022] This application provides a folding device for protecting charging gun cables in a vertically moving automated parking garage. This device effectively prevents excessively long or sagging cable carriers from colliding with the frame or loads in the lateral movement channel of adjacent lower parking areas. It offers advantages such as preventing charging gun cable sagging and collisions, improving equipment reliability, and reducing maintenance costs, thereby ensuring the safe and stable operation of the charging lines. The built-in grooves and multi-stage folding structure reduce repeated friction and pulling of the cables during pallet lifting, significantly extending the service life of the cables and cable carriers. The design is space-saving and easy to install and maintain, reducing the frequency of system downtime for maintenance and improving overall operating efficiency and reliability.

[0023] The following will further explain the concept, specific structure and technical effects of this application in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of this application. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of an embodiment of a folding device for protecting the charging gun cable in a vertical and horizontal moving parking garage according to this application;

[0026] Figure 2 yes Figure 1 A three-dimensional schematic diagram of the folding device for protecting the charging gun cable in a vertical and horizontal moving parking garage.

[0027] Figure 3 yes Figure 1 A top-view side view of the structure of the folding device for protecting the charging gun cable in a vertically moving parking garage;

[0028] Figure 4 This is a schematic diagram of another embodiment of a folding device for protecting the charging gun cable in a vertical and horizontal moving parking garage according to this application;

[0029] Figure 5 yes Figure 1 and Figure 4 A schematic diagram of the folding device.

[0030] Figure 6 This is a schematic diagram of a two-stage folding device structure;

[0031] Figure 7 yes Figure 5 A schematic diagram of the structure in which the fixed end of the middle folding device is located on the side of the middle layer transverse frame;

[0032] Figure 8 yes Figure 7 A three-dimensional schematic diagram of the structure.

[0033] Figure label:

[0034] 1- Lateral sliding frame;

[0035] 2-Lifting vehicle pallet; 21-Charging gun holder; 22-Charging gun cable;

[0036] 3-Folding device; 31-Fixed end; 32-Follower end;

[0037] 4-First Transition Unit;

[0038] 5-Second transition unit. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0040] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this application can produce, should still fall within the scope of the technical content disclosed in this application.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only to distinguish one entity or operation from another, and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or any such actual relationship or order between these entities or operations. For any single technical feature described or implied in the embodiments mentioned herein, or any single technical feature shown or implied in the accompanying drawings, this application still allows for any combination or deletion of these technical features (or their equivalents) without any technical obstacle, and therefore these further embodiments according to this application should also be considered within the scope of this description.

[0042] Terms such as “comprising” and “including” indicate that, in addition to the components that are directly and explicitly stated in the specification and claims, the technical solution of this utility model does not exclude the presence of other components that are not directly or explicitly stated.

[0043] It should also be noted that the terms "upper," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0044] Furthermore, the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0045] A real-world multi-level parking garage can include at least two parking areas. The bottom parking area is equipped with a lateral sliding frame 1, and the top parking area is equipped with a lifting vehicle pallet 2. A multi-level parking garage with at least three parking areas will have an intermediate parking area. The intermediate parking area will have both the lateral sliding frame 1 and the lifting vehicle pallet 2. The lifting vehicle pallet 2 moves vertically, while the lateral sliding frame 1 only moves laterally to make way for vehicles exiting from the upper level.

[0046] It should be noted that the accompanying drawings of this application only show a schematic diagram of the architecture of the intermediate parking area, but are not intended to limit the scope of protection of this application.

[0047] like Figures 1 to 8 As shown, a charging gun holder 21 is provided on the lifting vehicle pallet 2, and a charging gun is provided on the charging gun holder 21. The charging gun line 22 is led from the charging pile on the ground to the lifting vehicle pallet 2 on the same floor, and then laid through the folding device 3 before finally being placed in the charging gun holder 21.

[0048] A folding device 3 is installed in the parking area that is not on the ground floor (above the second floor). The folding device 3 has a groove inside for laying the charging gun cable 22. The folding device 3 may include a fixed end 31 and a follower end 32.

[0049] The folding device 3 is a mechanical component that can fold or unfold through its own structure to accommodate the displacement of the lifting vehicle pallet 2. The fixed end 31 is the stationary part of the folding device 3 that is directly or indirectly fixedly connected to the steel frame of the top floor of the multi-level parking garage or the transverse frame 1 of the intermediate floor. The moving end 32 is the movable part that is directly or indirectly fixedly connected to and linked with the lifting vehicle pallet 2.

[0050] To further improve folding efficiency, one end of the longitudinal flexible cable chain can be connected to the follower end 32 via a force transmission auxiliary unit, while the other end is fixedly connected to the lifting vehicle pallet 2. When the longitudinal flexible cable chain moves upward with the lifting vehicle pallet 2, it provides an additional lifting force in the folding and shrinking direction to the folding device 3. This additional lifting force, in conjunction with the folding mechanism of the folding device 3 itself, enables the folding device 3 to shrink more tightly.

[0051] In optional embodiments, such as Figure 1 , Figure 2 , Figure 4 , Figure 7 , Figure 8 As shown, the fixed end 31 of the folding device 3 can be connected to the steel frame of the top floor garage or the transverse frame 1 of the middle floor of the three-dimensional parking garage through the first transition unit 4, and the follower end 32 can be connected to the lifting vehicle pallet 2 through the second transition unit 5.

[0052] In other alternative embodiments, such as Figure 4 As shown, the first transition unit 4 can be a longitudinal flexible cable chain. However, this may mean that the cable chain also has a certain degree of mobility at the fixed end. Due to the mobility between the links, it is impossible to maintain a fixed folding angle or direction, resulting in inconsistent folding directions of different links and the overall structure being biased to one side. In addition, if the installation position of the fixed end is not stable enough, or if the structural design of the cable chain itself is insufficient to maintain symmetry during folding, it may also lead to eccentricity, causing the folding path to deviate from the expected direction during folding, resulting in asymmetry or positional shift, which may in turn cause collisions or structural instability.

[0053] Therefore, in order to further stabilize the fixed end 31, the first transition unit 4 is designed as follows: Figure 1 , Figure 2 , Figure 5 , Figure 7 , Figure 8The rigid connecting arm shown has internal grooves for laying the charging gun cable 22. The rigid connecting arm can be made of metal, possessing sufficient strength and rigidity to withstand the weight of the folding device 3 and the stress during movement. The rigid connecting arm can be bolted to the top-floor garage steel frame or the intermediate-level transverse frame 1, and the longitudinal flexible cable chain can be connected to the lifting vehicle pallet 2 via clips or bolts. This connection method ensures both stability and ease of disassembly and maintenance.

[0054] In this embodiment, the second transition unit 5 is a longitudinal flexible cable chain, which is used to lay the charging gun cable 22. The longitudinal flexible cable chain can be composed of multiple links, each of which is connected by hinges, allowing it to bend freely in the vertical direction.

[0055] During the folding process, the connection point between the second transition unit 5 and the follower end 32 moves synchronously with the lifting vehicle tray 2. At this time, the connection point between the first transition unit 4 and the fixed end 31 remains stationary. The relative movement between the two (fixed end 31 and follower end 32) is achieved through the deformation compensation of the transition unit and the unfolding and folding state of the folding device 3 to realize the interference-free unfolding and retraction of the charging gun cable 22.

[0056] As the follower end 32 moves upward into position, the lowest point of the second transition unit 5 in the folded and closed state of the folding device 3 is always higher than the highest point of the transverse frame 1 or its load in the next parking area, so as to avoid the drag chain (containing the charging gun line 22) in the high-rise (three or more floors) parking area from drooping and affecting the transverse movement of the next floor or causing a collision, or to avoid the potential danger of friction between the drag chain in the second-floor parking area and the load carried by the transverse frame 1 on the ground floor.

[0057] In an optional embodiment, the fixed end 31 can be directly or indirectly fixed to the middle or side of the steel frame of the top floor garage or the transverse frame 1 of the middle floor of the multi-level parking garage.

[0058] Preferably, a side-mounted design is used in parking areas above the fourth floor, and a mid-mounted design is used in parking areas below the third floor.

[0059] The folding device 3 of this embodiment may include at least two, and an even number, connecting units 33. The even number of connecting units is configured to form a symmetrical folding structure, and the sum of the lengths of the multiple connecting units 33 is greater than the height from the ground floor to the parking level. Furthermore, each adjacent connecting unit 33 is movably connected to each other, and every two connecting units 33 constitute one folding level. Figure 5 This shows the case of a first-level folded layer. Figure 6The situation of the secondary folding layer is shown. As the follower end 32 moves downward, the primary folding device can naturally unfold to form a V-shaped suspended section, and as the follower end 32 moves downward, the secondary folding device can naturally unfold to form a W-shaped suspended section, and so on.

[0060] Preferably, the folding device in a parking area with more than four floors can adopt a folding design with two or more levels.

[0061] Specifically, Figures 1 to 4 The situation where the fixed end 31 of the folding device 3 is at the middle position of the middle section of the transverse frame 1 of the middle layer is shown. Assuming the length of a single connection unit 33 is a and the width of the tray is b, when using the middle position design, it is required that 2a < b.

[0062] Figure 7 and Figure 8 The situation where the fixed end 31 of the folding device 3 is on the side of the middle layer of the transverse frame 1 is shown. Assuming the length of a single connection unit 33 is c and the width of the tray is b, when using the side design, it is required that c < b. That is, the length c of a single connection unit 33 in the side design can be longer than the length a of a single connection unit 33 in the middle position design, so that the height from the ground to the layer where it is located can be more efficiently covered when the folding device 3 is unfolded.

[0063] In this embodiment, each adjacent connection unit 33 can be movably connected by a multi-axis synchronous hinge. When the lifting and loading tray 2 rises, the folding layer structure gradually folds up level by level. That is, when the follower end 32 rises with the tray, the connection unit 33 folds up gradually towards the fixed end 31 direction, and the movement interference between the folding layers is eliminated by the rotation of the hinge. Among them, the multi-axis synchronous hinge supports the synchronous folding of the multi-level folding mechanism, with built-in limit card slots, limiting the maximum folding angle to 180° to prevent over-expansion.

[0064] Specifically, the connection unit 33 can be made of aluminum alloy profiles, with a U-shaped or C-shaped cross-section, and a groove for laying the charging gun line 22 is provided inside. The charging gun line 22 can be tied to the connection unit 33 by a tie strap, stably placed and not easy to fall off. The contact area between the cable and the inner wall of the connection unit 33 is evenly distributed to reduce local friction.

[0065] The preferred embodiments of this application have been described in detail above, illustrating only a few implementation methods, and should not be construed as limiting the scope of the patent. The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments have been described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. It should be understood that those skilled in the art can make many modifications and variations based on the concept of this application without creative effort. Therefore, without departing from the concept of this application, any technical solution that can be obtained by those skilled in the art based on the concept of this application through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A folding device for protecting charging gun cables in a vertically sliding multi-level parking garage, the multi-level parking garage comprising at least two parking areas, a bottom parking area equipped with a horizontally sliding frame (1), a top parking area equipped with a lifting vehicle pallet (2), and an intermediate parking area equipped with both the horizontally sliding frame (1) and the lifting vehicle pallet (2), wherein the lifting vehicle pallet (2) moves vertically along the longitudinal direction, and the horizontally sliding frame (1) moves only laterally to make way for vehicles exiting the upper level, characterized in that, A charging gun seat (21) is provided on the lifting vehicle pallet (2). A charging gun is provided on the charging gun seat (21). The charging gun line (22) is led from the charging pile on the ground to the lifting vehicle pallet (2) on the same floor, and then laid through the folding device (3) and finally placed on the charging gun seat (21). The non-bottom parking area is equipped with a folding device (3), the folding device (3) has a groove inside for laying the charging gun line (22), the folding device (3) includes a fixed end (31) and a follower end (32); wherein, the fixed end (31) is directly or indirectly fixedly connected to the steel frame of the top floor garage or the transverse frame (1) of the middle floor of the three-dimensional parking garage, and the follower end (32) is directly or indirectly fixedly connected to the lifting vehicle pallet (2).

2. The folding device for protecting the charging gun cable in a lifting and traversing three-dimensional parking garage according to claim 1, characterized in that, The fixed end (31) of the folding device (3) is connected to the horizontal moving frame (1) of the top floor garage steel frame or the middle floor of the three-dimensional parking garage through the first transition unit (4), and the follower end (32) is connected to the lifting vehicle pallet (2) through the second transition unit (5).

3. The folding device for protecting the charging gun cable in a lifting and traversing three-dimensional parking garage according to claim 2, characterized in that, The first transition unit (4) is a rigid connecting arm with a groove inside for laying the charging gun wire (22).

4. The folding device for protecting the charging gun cable in a lifting and traversing three-dimensional parking garage according to claim 2, characterized in that, The second transition unit (5) is a longitudinal flexible drag chain, which is used to lay the charging gun wire (22) inside; As the follower end (32) moves upward, the lowest point of the second transition unit (5) in the folded and closed state of the folding device (3) is always higher than the highest point of the transverse frame (1) or its load in the next parking area.

5. The folding device for protecting the charging gun cable in a lifting and traversing three-dimensional parking garage according to claim 4, characterized in that, One end of the longitudinal flexible drag chain is connected to the follower end (32) through a force transmission auxiliary unit, and the other end is fixedly connected to the lifting vehicle pallet (2); when the longitudinal flexible drag chain moves upward with the lifting vehicle pallet (2), it provides additional lifting force in the folding and shrinking direction to the folding device (3).

6. The folding device for protecting the charging gun cable in a lifting and traversing three-dimensional parking garage according to claim 1, characterized in that, The folding device (3) includes at least two and an even number of connecting units (33), the sum of the lengths of the plurality of connecting units (33) being greater than the height from the ground floor to the parking level. Each adjacent connecting unit (33) is movably connected to each other, and every two connecting units (33) constitute a first-level folded layer.

7. The folding device for protecting the charging gun cable in a lifting and traversing three-dimensional parking garage according to claim 6, characterized in that, Each adjacent connecting unit (33) is movably connected by a multi-axis synchronous hinge; wherein the multi-axis synchronous hinge supports synchronous folding of a multi-level folding mechanism, and has a built-in limiting slot to limit the maximum folding angle to 180° to prevent over-expansion.

8. The folding device for protecting the charging gun cable in a lifting and traversing three-dimensional parking garage according to claim 6, characterized in that, The cross-section of the connecting unit (33) is U-shaped or C-shaped, and it is used to lay the charging gun wire (22).

9. The folding device for protecting the charging gun cable in a lifting and traversing three-dimensional parking garage according to claim 1, characterized in that, The fixed end (31) is directly or indirectly fixed to the middle section of the transverse frame (1) of the top floor steel frame or the middle layer of the multi-level parking garage.

10. The folding device for protecting the charging gun cable in a lifting and traversing three-dimensional parking garage according to claim 1, characterized in that, The fixed end (31) is directly or indirectly fixed to the side of the transverse frame (1) of the top floor garage steel frame or the middle floor of the multi-level parking garage.

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