A reeling device for a charging gun cable

Abstract

The utility model relates to charging pile technical field, concretely is a kind of take-up device of charging gun cable, including charging pile, cable, charging gun head, take-up component, installation box and clamping assembly. Take-up component is driven to retractable traction rope by winding roller and torsion spring, realize cable automatic take-up and pay-off;Clamping assembly is realized the clamping and quick release of cable by the cooperation of lateral guide plate, positioning pin and compression spring. The device can avoid cable scattering, reduce abrasion, improve use convenience and safety, lateral guide plate and fixed horizontal plate are matched with rectangular hole II and slide, positioning pin and positioning hole are engaged to realize positioning, compression spring I and compression spring II provide stable elastic force, ensure the stability and reliability of entire take-up device in working process, can long-time stably realize take-up and clamping block operation function.

Description

Technical Field

[0001] This utility model relates to the field of charging pile technology, and in particular to a cable winding device for a charging gun. Background Technology

[0002] With the increasing popularity of electric vehicles, charging stations, as an important supporting facility, are being used more and more frequently. In the current use of charging stations, the charging gun cable usually hangs directly outside the charging station without an effective cable retraction device. This has led to a series of problems. The cables are scattered haphazardly, making the area around the charging stations look messy and disorganized, affecting the overall aesthetics and failing to meet the requirements for cleanliness in public places.

[0003] Scattered cables are easily trampled by pedestrians, run over by vehicles, and scratched by external objects, which can damage the cable sheath and expose the internal wiring. This not only affects the normal use of the cable but may also cause safety hazards.

[0004] When using the charging gun, users need to manually tidy up the scattered cables, which is quite cumbersome. After use, users also need to spend time and effort to put the cables back in place, which reduces the user experience.

[0005] Therefore, developing a charging gun cable reel-up device that can effectively solve the above problems is of great practical significance. Utility Model Content

[0006] The purpose of this utility model is to solve the problem of cables being scattered haphazardly in existing technologies, making the environment around charging stations look messy and affecting the overall aesthetics, which also fails to meet the requirements of cleanliness in public places. Scattered cables are easily trampled by pedestrians, run over by vehicles, and scratched by external objects, resulting in damage to the cable sheath and exposure of the internal wiring. This not only affects the normal use of the cables but may also cause safety hazards. When users use the charging gun, they need to manually tidy up the scattered cables, which is cumbersome; after use, they also need to spend time and effort to put the cables back in place, reducing the user experience. Therefore, this utility model proposes a cable winding device for charging guns.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A cable winding device for a charging gun includes a charging pile with two cables on one side, one end of which is fixedly mounted with a charging gun head. The cable take-up assembly is fixedly installed on one side of the outer wall of the charging pile, including two limiting discs and a winding roller that rotates through them. The limiting discs are provided with torsion springs, and the outer wall of the winding roller is wound with a traction rope. The mounting box is fixedly connected to one end of the traction rope, and the other end of the traction rope is fixedly connected to the outer wall of the winding roller. A clamping assembly, located inside the mounting box, is used to clamp the cable. When the charging gun head is pulled, the traction rope drives the winding roller to rotate and causes the torsion spring to store energy. After being released, the torsion spring drives the winding roller to reverse and achieve automatic cable winding.

[0008] In one possible design, the clamping assembly includes a fixed horizontal plate fixedly mounted to the inner wall of the mounting box, and two symmetrically arranged side guide plates slidably connected to the outer wall of the fixed horizontal plate; The side guide plate has a rectangular hole II inside, and the fixed cross plate passes through the rectangular hole II. A compression spring I is installed between one side of the side guide plate and the inner wall of the mounting box, and a clamping block is fixedly installed on one side of the side guide plate.

[0009] In one possible design, the side guide plate has an clearance groove on one side and a protrusion fixedly installed on the other side. The side guide plate has two symmetrical positioning holes inside.

[0010] In one possible design, a sliding cross plate is slidably connected between the inner walls on both sides of the mounting box, and the two ends of the sliding cross plate respectively abut against the two clearance grooves; A compression spring II is installed between one side of the sliding horizontal plate and the fixed horizontal plate; The top of the sliding cross plate is fixedly equipped with a positioning pin that engages with the positioning hole.

[0011] In one possible design, a rectangular hole I is provided on one side of the mounting box; A trapezoidal wedge is fixedly installed on one side of the sliding cross plate, and the inclined surface of the trapezoidal wedge cooperates with the protrusion. A push plate that mates with the rectangular hole I is fixedly installed on one side of the trapezoidal wedge.

[0012] In one possible design, an L-shaped fixing block is fixedly installed on one side of the charging pile, which is used to place the charging gun head.

[0013] In one possible design, an extension plate is fixedly installed on one side of the limiting plate, and a U-shaped positioning block is fixedly installed on one side of the extension plate. The two U-shaped positioning blocks cooperate with each other to guide and limit the traction rope.

[0014] In this application, during use, two clamping blocks are fastened to the outside of the cable. When the user uses the cable, the charging gun head can be lifted from the L-shaped fixing block and the cable can be pulled. The cable will cause the clamping blocks to extend together. At this time, the clamping blocks will cause the mounting box and the external traction rope to be stretched together. The traction rope extends out inside the two U-shaped positioning blocks. At this time, the winding roller rotates inside the limiting plate and twists the torsion spring inside the limiting plate. When the user puts it back, the traction rope is retracted under the action of the torsion spring, which can help the cable to be wound up. When it is necessary to detach the clamping block from the cable, the push plate can be pressed. The push plate drives the trapezoidal wedge to move laterally, which in turn drives the sliding horizontal plate to move laterally. The sliding horizontal plate then drives the positioning pin to move laterally, at which point the positioning pin moves out of the positioning hole, releasing the braking state of the side guide plate. Subsequently, the inclined surface of the trapezoidal wedge abuts against the protrusion, and the two protrusions drive the side guide plate away from each other. The side guide plate compresses the compression spring I and slides on the outer wall of the fixed horizontal plate. At this point, the side guide plate drives the two clamping blocks to move away from each other, allowing the clamping block and cable to be detached.

[0015] Beneficial effects: This cable retraction device, through the setting of components such as a winding roller, torsion spring, and traction rope, allows the traction rope to be stretched under the action of the rotating winding roller when the user uses the charging gun and pulls the cable, while simultaneously torturing the torsion spring. When the user puts the charging gun back, the torsion spring returns to its original deformation, causing the winding roller to rotate in the opposite direction, and the traction rope to be retracted. This helps to automatically retract the cable, preventing it from falling apart and making the environment around the charging station cleaner and more orderly. At the same time, it reduces the wear and tear that the cable may suffer from long-term scattering, extending the cable's service life.

[0016] By designing a structure including trapezoidal wedges, sliding cross plates, positioning pins, and side guide plates, when it is necessary to detach the clamping block from the cable, simply press the push plate. This will release the braking state of the side guide plates through a series of linked actions, causing the two side guide plates to move away from each other. This, in turn, causes the two clamping blocks to move away from each other, achieving quick and convenient detachment of the clamping block from the cable. This facilitates maintenance and replacement of the cable or clamping block, improving the overall flexibility and ease of maintenance of the device.

[0017] The side guide plate and the fixed cross plate slide together through rectangular hole II. The positioning pin engages with the positioning hole to achieve positioning. Compression spring I and compression spring II provide stable elastic force, ensuring the stability and reliability of the entire take-up device during operation. It can stably perform the functions of take-up and clamping block operation for a long time. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of a cable take-up device for a charging gun proposed in this utility model. Figure 2A three-dimensional structural diagram of the mounting box and limiting plate in a charging gun cable take-up device proposed in this utility model. Figure 3 An exploded view of the mounting box and clamping block in a cable take-up device for a charging gun cable proposed in this utility model. Figure 4 This is an exploded view of the side guide plate and the fixed cross plate in the cable winding device for a charging gun cable proposed in this utility model.

[0019] In the diagram: 1. Charging pile; 2. Clamping block; 3. Cable; 4. Charging gun head; 5. L-shaped fixing block; 6. Mounting box; 7. Traction rope; 8. U-shaped positioning block; 9. Extension plate; 10. Limiting plate; 11. Winding roller; 12. Side guide plate; 13. Sliding horizontal plate; 14. Rectangular hole I; 15. Fixing horizontal plate; 16. Trapezoidal wedge; 17. Push plate; 18. Positioning pin; 19. Protrusion; 20. Positioning hole; 21. Compression spring I; 22. Clearance groove; 23. Rectangular hole II; 24. Compression spring II. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] In one embodiment: Refer to Figure 1-4 A cable reeling device is provided. The main body of the charging pile 1 is made of metal to ensure the stability of the overall structure. Two cables 3 are installed on one side of the charging pile 1. The cables 3 are wear-resistant and tensile-resistant cables that meet charging standards. One end of each cable is fixedly installed with a charging gun head 4, which meets industry standards and has good conductivity and safety.

[0022] Two cable winding assemblies are bolted to one side of the outer wall of the charging pile 1. These assemblies are housed within a metal casing, with a through-hole for cable routing on the lower side of the casing. Within each cable winding assembly, two circular metal limiting discs 10 are securely connected to the outer wall of the charging pile 1 via welding or bolting. The two limiting discs 10 rotate through the same winding roller 11, a smooth cylindrical metal rod for easy winding of the traction rope 7. A torsion spring is installed inside each limiting disc 10. When the winding roller 11 rotates, the torsion spring is twisted, generating elastic potential energy to help the winding roller 11 return to its original position.

[0023] Specifically, the winding roller 11 and the limiting plate 10 can be rotatably connected by bearings to ensure that the winding roller 11 rotates smoothly without axial movement, thus improving the stability of the winding process. The torsion spring is used to provide the reset power for the traction rope 7. When the charging gun head 4 is pulled out for use, the traction rope 7 is pulled out along with the cable 3, and the torsion spring is twisted to store energy. When the charging gun head 4 is no longer in use, the torsion spring releases its elastic potential energy, causing the winding roller 11 to rotate in the opposite direction. The traction rope 7 pulls the clamping block 2 to reset, thereby automatically retracting the cable 3.

[0024] The torsion spring is specifically connected in such a way that the inner end of the torsion spring is fixedly connected to the winding roller 11, and the outer end abuts against the protrusion on the inner wall of the limiting disk 10. When the winding roller 11 rotates, the torsion spring rotates outward to generate torque, ensuring that the cable can stably store energy and achieve automatic rewinding after being pulled out.

[0025] A traction rope 7 is tightly wound around the outer wall of the winding roller 11. The traction rope 7 is made of high-strength, wear-resistant nylon rope, which is strong enough to withstand the weight of the mounting box 6 and the clamping block 2. One end of the traction rope 7 is fixed to the surface of the winding roller 11, and the other end of the traction rope 7 passes through a pre-set hole in the charging pile 1 and is fixedly installed on the mounting box 6. The mounting box 6 is a rectangular metal box with a hollow interior, used to install the clamping components.

[0026] In the clamping assembly, the fixing horizontal plate 15 is a rectangular metal plate, which is fixedly installed on the inner wall of the mounting box 6 by welding. Two symmetrical side guide plates 12 are slidably fitted on the outer wall of the fixing horizontal plate 15. The lower end of the side guide plate 12 has a rectangular hole II 23 through which the fixing horizontal plate 15 passes. The fixing horizontal plate 15 is inserted into the rectangular hole II 23 to achieve a sliding fit. The same compression spring I 21 is fixedly installed between the opposite sides of the two side guide plates 12 and the inner wall of the mounting box 6. The compression spring I 21 provides elastic force when the side guide plates 12 move, so that they can return to their original position. A clearance groove 22 is provided on one side of the side guide plate 12 for sliding engagement with the sliding cross plate 13; a protrusion 19 is fixedly installed on the upper end of the side guide plate 12, and the protrusion 19 extends towards the middle of the two side guide plates 12; the protrusion 19 has a through positioning hole 20 in the length direction of the side guide plate 12, and each protrusion has two symmetrical positioning holes 20. The positioning holes 20 are circular holes, which are used to lock the two side guide plates 12 with the positioning pin 18 on the sliding cross plate 13.

[0027] A sliding horizontal plate 13 is slidably connected between the inner walls of both sides of the mounting box 6. The sliding horizontal plate 13 is a rectangular metal plate, with its two ends abutting against two clearance grooves 22 to ensure stable horizontal sliding. A compression spring II 24 is fixedly installed between the lower side of the sliding horizontal plate 13 and the upper side of the fixed horizontal plate 15. The compression spring II 24 provides an elastic force to the sliding horizontal plate 13 toward the push plate 17. Multiple positioning pins 18 are fixedly installed on the top of the sliding horizontal plate 13. The size and position of the positioning pins 18 are adapted to the positioning holes 20. The positioning pins 18 are cylindrical metal rods. When the sliding horizontal plate 13 moves upward under the elastic force of the compression spring II 24, the positioning pins 18 pass through the positioning holes 20 on the two side guide plates 12, so that the two side guide plates 12 are constrained in the length direction of the fixed horizontal plate 15.

[0028] A rectangular hole I14 is opened on one side of the mounting box 6. A trapezoidal wedge 16 is fixedly installed on one side of the sliding horizontal plate 13. The inclined surface of the trapezoidal wedge 16 abuts against the protrusion 19. A push plate 17 is fixedly installed on one side of the trapezoidal wedge 16. The push plate 17 is a rectangular metal plate that works in conjunction with the rectangular hole I14. The user can move the trapezoidal wedge 16 by pushing the push plate 17.

[0029] Specifically, the trapezoidal wedge 16 can be fixed to the sliding horizontal plate 13 by bolts or welding, and is located on the side of the sliding horizontal plate 13 with the positioning pin 18. The two inclined surfaces of the trapezoidal wedge 16 are set opposite to the protrusion 19, and the distance between the inclined surfaces and the sliding horizontal plate 13 is farther away from the protrusion 19 as it gets closer to the protrusion 19. This is so that when the trapezoidal wedge 16 is pressed to move the sliding horizontal plate 13 toward the fixed horizontal plate 15, the two inclined surfaces will exert a force on the protrusions 19 of the guide plates 12 on both sides away from the sliding horizontal plate 13.

[0030] Furthermore, to avoid motion interference, the two inclined surfaces of the trapezoidal wedge 16 do not contact the protrusion 19 before the locating pin 18 leaves the locating hole 20.

[0031] like Figure 3 As shown, a clamping block 2 is fixed on the side of each of the two side guide plates 12 away from the rectangular hole I 14. The two clamping blocks 2 form a circular ring, and the size of the ring is adapted to the diameter of the cable 3, so that when the two side guide plates 12 move closer to the center and are positioned by the positioning pin 18 and the positioning hole 20, the two clamping blocks 2 form a ring that is fixedly sleeved on the outside of the cable 3.

[0032] Furthermore, an elastic pad can be fixed inside the clamping block 2 to increase the clamping force and protect the outside of the cable 3.

[0033] In practical use, the two clamping blocks 2 are fastened to the outside of the cable 3, and the clamping blocks 2 are connected to the mounting box 6. When the user needs to use the charging gun, the charging gun head 4 is lifted from the L-shaped fixing block 5 and the cable 3 is pulled. The cable 3 drives the clamping blocks 2 to extend together, and the clamping blocks 2 drive the mounting box 6 and the external traction rope 7 to stretch together.

[0034] The traction rope 7 extends inside the two U-shaped positioning blocks 8, and the winding roller 11 rotates inside the limiting plate 10, simultaneously torsioning the torsion spring inside the limiting plate 10. When the user finishes using the device and returns the charging gun head 4, the torsion spring returns to its original shape, causing the winding roller 11 to rotate in the opposite direction. The traction rope 7 retracts under the action of the torsion spring, thus helping to reel in the cable 3, preventing the cable 3 from scattering randomly, keeping the area around the charging station 1 clean and orderly, reducing wear on the cable 3, lowering safety hazards, improving the user experience, and facilitating regular inspection and maintenance of the cable 3.

[0035] When it is necessary to detach the clamping block 2 from the cable 3, the user presses the push plate 17, the push plate 17 drives the trapezoidal wedge block 16 to move laterally, the trapezoidal wedge block 16 drives the sliding horizontal plate 13 to move laterally, the sliding horizontal plate 13 drives the positioning pin 18 to move laterally, the positioning pin 18 moves out from the positioning hole 20, and releases the braking state of the opposite guide plate 12.

[0036] Subsequently, the inclined surface of the trapezoidal wedge 16 abuts against the protrusion 19, and the two protrusions 19 drive the side guide plate 12 away from each other. The side guide plate 12 slides against the wall, and at this time, the side guide plate 12 drives the two clamping blocks 2 away from each other, realizing the separation of the clamping block 2 and the cable 3, which facilitates maintenance, replacement and other operations of the cable 3 or the clamping block 2.

[0037] This application can be used in the field of charging piles, or in other fields applicable to this application.

[0038] In another embodiment: Reference Figure 1-4 A charging gun cable winding device is disclosed, which is used in the field of charging piles. An L-shaped fixing block 5 is fixedly installed on one side of the charging pile 1 by bolts. The L-shaped fixing block 5 is used to place the charging gun head 4, so that the charging gun head 4 can be neatly arranged when not in use. An extension plate 9 is welded to one side of the limiting plate 10. The extension plate 9 is a rectangular metal plate, and a U-shaped positioning block 8 is fixedly installed on the other side. The U-shaped positioning block 8 is made of metal. The two U-shaped positioning blocks 8 cooperate with each other to limit the traction rope 7 and prevent the traction rope 7 from deviating during the stretching and retraction process.

[0039] However, as is well known to those skilled in the art, the working principles and wiring methods of the charging pile 1, the charging gun head 4, and the cable 3 are all conventional methods or common knowledge, and will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cable winding device for a charging gun, characterized in that, include: The charging pile (1) has two cables (3) on one side, and a charging gun head (4) is fixedly installed at one end of the cable (3). The cable winding assembly is fixedly installed on one side of the outer wall of the charging pile (1), including multiple limiting discs (10) and a winding roller (11) that rotates through them. The limiting discs (10) are provided with torsion springs inside, and the outer wall of the winding roller (11) is wound with a traction rope (7). The mounting box (6) is fixedly connected to one end of the traction rope (7), and the other end of the traction rope (7) is fixedly connected to the winding roller (11); The clamping assembly is located inside the mounting box (6) and is used to clamp the cable (3). When the charging gun head (4) is pulled, the traction rope (7) drives the winding roller (11) to rotate and the torsion spring to store energy. After being released, the torsion spring drives the winding roller (11) to reverse and realize automatic winding.

2. The take-up device according to claim 1, characterized in that, The clamping assembly includes a fixed horizontal plate (15) fixedly installed on the inner wall of the mounting box (6), and two symmetrically arranged side guide plates (12) are slidably connected to the outer wall of the fixed horizontal plate (15). The side guide plate (12) has a rectangular hole II (23) through the plate body at one end, and the fixed cross plate (15) passes through the rectangular hole II (23). A compression spring I (21) is installed between one side of the side guide plate (12) and the inner wall of the mounting box (6), and a clamping block (2) is fixedly installed on the side of the side guide plate (12) extending out of the mounting box (6).

3. The take-up device according to claim 2, characterized in that, The side guide plate (12) has a clearance groove (22) on the opposite side and a protrusion (19) is fixedly installed thereon. The side guide plate (12) is provided with positioning holes (20).

4. The take-up device according to claim 3, characterized in that, A sliding horizontal plate (13) is slidably connected between the inner walls on both sides of the mounting box (6), and the two ends of the sliding horizontal plate (13) respectively abut against the two clearance grooves (22); A compression spring II (24) is installed between one side of the sliding horizontal plate (13) and the fixed horizontal plate (15); The top of the sliding cross plate (13) is fixedly installed with a positioning pin (18) that engages with the positioning hole (20).

5. The take-up device according to claim 4, characterized in that, A rectangular hole I (14) is provided on one side of the mounting box (6); A trapezoidal wedge (16) is fixedly installed on one side of the sliding cross plate (13), and the inclined surface of the trapezoidal wedge (16) cooperates with the protrusion (19); A push plate (17) that mates with the rectangular hole I (14) is fixedly installed on one side of the trapezoidal wedge (16).

6. The take-up device according to claim 1, characterized in that, An L-shaped fixing block (5) is fixedly installed on one side of the charging pile (1), and the L-shaped fixing block (5) is used to place the charging gun head (4).

7. The take-up device according to claim 1, characterized in that, An extension plate (9) is fixedly installed on one side of the limiting plate (10), and a U-shaped positioning block (8) is fixedly installed on one side of the extension plate (9). The two U-shaped positioning blocks (8) cooperate with each other to guide and limit the traction rope (7).

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