Charging pile cable anti-crushing self-protection retractor

By designing a limiting component, the cable is double-limited and fixed using a dual-axis motor and gear transmission system, which solves the problem of the charging pile cable becoming loose after winding, ensuring that the cable is stable and easy to use.

CN224279418UActive Publication Date: 2026-05-26JIANGSU KING POWER TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU KING POWER TECH CO LTD
Filing Date
2025-07-29
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing charging pile cables are prone to loosening after being wound, lacking effective limiting and fixing, which affects their performance.

Method used

The cable is double-limited and fixed by a limiting component, including a support frame, a dual-axis motor, a bevel gear and a gear transmission system. The dual-axis motor drives the lead screw and push rod to push the limiting plate and the fixing plate to ensure that the cable does not loosen after winding.

Benefits of technology

This design ensures the cable remains securely wound and does not loosen, facilitating quick removal for future use and improving both performance and quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of cable winding technology and discloses a self-protective cable winding device for preventing crushing of charging pile cables. It solves the problem that current self-protective cable winding devices for preventing crushing of charging pile cables are inconvenient for limiting and fixing the wound cable, easily leading to cable loosening and affecting use. It includes a mounting base with a winding port at one end and a charging gun placement slot on one side. A winding roller is rotatably connected to one side inside the mounting base, and openings are provided on both sides of the winding roller. This utility model, through the setting of a limiting component, uses a dual-axis motor to limit and fix the inner side of the wound cable with a limiting plate. The limiting slot fits against the outer side of the cable, and a fixing plate fixes the outer side of the cable. Under this double limiting and fixing, it effectively ensures that the cable will not loosen after winding, facilitating quick extraction for the next use and ensuring performance and quality.
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Description

Technical Field

[0001] This utility model belongs to the field of cable winding technology, specifically a self-protecting cable winding device for charging piles that prevents crushing. Background Technology

[0002] Charging piles, also known as electric vehicle charging stations or electric vehicle power supply equipment, are devices that provide electrical energy to electric vehicles, enabling them to store enough electricity to support their operation. With the widespread use of new energy electric vehicles, the frequency of use of charging piles is increasing. Therefore, most charging pile cables have an automatic cable reel function to protect them. However, the automatic reel device typically only winds the cable up. When the cable is wound around the outside of the reel, it is prone to loosening, requiring rewinding during the next extraction. Such self-protective cable reels for charging piles, designed to prevent crushing, do not effectively limit and fix the wound cable, easily leading to cable loosening and affecting its use. Utility Model Content

[0003] In view of the above situation and to overcome the defects of the prior art, this utility model provides a charging pile cable anti-crushing self-protection retractor, which effectively solves the problem that the current charging pile cable anti-crushing self-protection retractor is not convenient for limiting and fixing the cable after winding, which easily leads to the cable loosening and affects its use.

[0004] This utility model provides the following technical solution: a charging pile cable anti-crushing self-protection retractor, including a mounting base, one end of which is provided with a retractor opening, a charging gun placement groove is provided on one side of the mounting base, a winding roller is rotatably connected to one side inside the mounting base, through openings are provided on both sides of the outer side of the winding roller, and sliding grooves are symmetrically provided at both ends of the outer and inner sides of the winding roller, and a limit component is connected to one side inside the winding roller;

[0005] The limiting component includes a support frame installed inside one side of the take-up roller. One end of the support frame is connected to a dual-axis motor. The output shafts at both ends of the dual-axis motor are fixedly connected to a first bevel gear. Both sides of one end of the support frame are connected through a lead screw. One end of the lead screw is rotatably connected to both sides of the inner wall of the take-up roller. A second bevel gear is fixedly sleeved on the outside of the lead screw. Gears are fixedly sleeved on both sides of the outside of the lead screw.

[0006] Optionally, both sides of the lead screw are threadedly connected to a movable disk, one end of which is rotatably connected to a push rod, and one end of which is rotatably connected to a limit plate.

[0007] Optionally, the limiting plate is located inside the opening, and an arc-shaped groove is provided at one end of the limiting plate.

[0008] Optionally, a toothed plate meshes with one side of the gear, and telescopic rods are connected to both sides of one end of the toothed plate. A support plate is connected to one end of the telescopic rod, and one end of the support plate is connected to one side of the inner wall of the take-up roller.

[0009] Optionally, one end of the toothed plate is connected to a sliding plate, one end of the sliding plate extends through into the interior of the slide groove, and one end of the sliding plate is connected to a sliding rod, both ends of which are connected to the inner walls of the slide groove.

[0010] Optionally, a movable plate is connected to one end of the slide plate, an elastic flexible rod is connected to the inner side of the movable plate, and a fixed plate is connected to one end of the elastic flexible rod.

[0011] Optionally, the flexible rod is made of rubber, and one end of the fixing plate is arranged in an arc shape.

[0012] In summary, this application includes at least one of the following beneficial technical effects:

[0013] This invention, through the setting of a limiting component, uses a dual-axis motor to limit and fix the inner side of the wound cable with a limiting plate, while the limiting groove fits against the outer side of the cable and the fixing plate fixes the outer side of the cable. Under the double limiting and fixing, it effectively ensures that the cable will not loosen after winding, making it easy to quickly pull out the cable when used again, thus ensuring the performance and quality of use. Attached Figure Description

[0014] Figure 1 This is a structural diagram of a charging pile cable anti-crushing self-protection retractor;

[0015] Figure 2 This is a schematic diagram of the installation structure of the take-up roller;

[0016] Figure 3 This is a schematic diagram of the opening structure of the passage;

[0017] Figure 4 This is a schematic diagram of the limit component;

[0018] Figure 5 This is a schematic diagram of the connection structure of the fixed plate.

[0019] In the diagram: 1. Mounting base; 2. Take-up port; 3. Take-up roller; 4. Through port; 5. Slide groove; 6. Limiting component; 7. Charging gun placement slot; 61. Support frame; 62. Dual-axis motor; 63. First bevel gear; 64. Lead screw; 65. Second bevel gear; 66. Gear; 67. Moving plate; 68. Push rod; 69. Limiting plate; 610. Arc groove; 611. Toothed plate; 612. Telescopic rod; 613. Support plate; 614. Slide plate; 615. Slide rod; 616. Moving plate; 617. Flexible rod; 618. Fixing plate. Detailed Implementation

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

[0021] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0022] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Example

[0026] Reference Figures 1-3 As shown, the charging pile cable anti-crushing self-protection retractor proposed in this utility model includes a mounting base 1. One end of the mounting base 1 has a retracting port 2, which facilitates the cable to pass through. A charging gun placement groove 7 is provided on one side of the mounting base 1, which facilitates the placement and fixing of the charging gun head. A winding roller 3 is rotatably connected to one side inside the mounting base 1. The winding roller 3 is electrically connected to an external power device, so that the winding roller 3 rotates automatically to wind up the cable. Both sides of the outer side of the winding roller 3 have openings 4, which facilitate the placement of the limiting plate 69. Both the outer and inner ends of the winding roller 3 have symmetrically provided sliding grooves 5. A limiting component 6 is connected to one side inside the winding roller 3.

[0027] Reference Figure 4 As shown, the limiting component 6 includes a support frame 61 installed inside one side of the take-up roller 3. The support frame 61 installs and supports the motor, so that the motor is fixedly installed inside the take-up roller 3. One end of the support frame 61 is connected to a dual-axis motor 62. The output shafts at both ends of the dual-axis motor 62 are fixedly connected to a first bevel gear 63. Both sides of one end of the support frame 61 are connected through a lead screw 64. The external thread direction of the lead screw 64 is symmetrical about the center. When the lead screw 64 rotates, it drives the moving disk 67 to move towards the center. One end of the lead screw 64 is rotatably connected to both sides of the inner wall of the take-up roller 3. A second bevel gear 65 is fixedly sleeved on the outside of the lead screw 64. The second bevel gear 65 meshes with the first bevel gear 63. When the first bevel gear 63 rotates, it drives the second bevel gear 65 to rotate, which in turn drives the lead screw 64 to rotate.

[0028] Among them, gears 66 are fixedly sleeved on both sides of the lead screw 64, and movable disks 67 are threadedly connected to both sides of the lead screw 64. A push rod 68 is rotatably connected to one end of the movable disk 67. The push rod 68 moves to one side under the drive of the movable disk 67, thereby pushing the limiting plate 69 to the cable side. The limiting plate 69 is rotatably connected to one end of the push rod 68. The limiting plate 69 is located inside the through port 4. An arc-shaped groove 610 is opened at one end of the limiting plate 69. The arc-shaped groove 610 facilitates the fit with the cable and ensures the fixing effect of the cable.

[0029] Reference Figure 5 As shown, a gear 66 meshes with a toothed plate 611 on one side. The rotation of the gear 66 drives the toothed plate 611 to move to one side. Telescopic rods 612 are connected to both sides of one end of the toothed plate 611. The telescopic rods 612 retract under the action of the toothed plate 611, ensuring that the toothed plate 611 moves in a straight line during the movement. A support plate 613 is connected to one end of the telescopic rod 612, which supports the telescopic rod 612. One end of the support plate 613 is connected to one side of the inner wall of the take-up roller 3. A slide plate 614 is connected to one end of the toothed plate 611. The slide plate 614 slides along the outside of the slide rod 615. Under the sliding limit of the slide rod 615, the slide plate 614 will not detach from the slide groove 5. One end of the slide plate 614 extends through into the interior of the slide groove 5, and the slide rod 615 is connected through the slide plate 614.

[0030] The slide bar 615 is connected to both ends of the inner wall of the slide groove 5. The slide plate 614 is connected to a movable plate 616 at one end. The movable plate 616 is connected to an elastic soft rod 617 on its inner side. The elastic soft rod 617 provides support to the fixed plate 618, so that the fixed plate 618 can fix the cable without damaging the cable. The fixed plate 618 is connected to one end of the elastic soft rod 617. The fixed plate 618 fixes the cable to the outside and prevents the cable from loosening after winding. The elastic soft rod 617 is made of rubber. The fixed plate 618 has an arc-shaped structure at one end.

[0031] The implementation principle of the charging pile cable anti-crushing self-protection take-up device in this application embodiment is as follows: During use, after the cable is taken up, it is wound around the outside of the take-up roller 3. At this time, the first bevel gear 63 is rotated by the dual-shaft motor 62. Under the meshing transmission of the first bevel gear 63 and the second bevel gear 65, the screw 64 drives the gear 66 and the moving disk 67 to rotate simultaneously. The moving disk 67 is threadedly connected to the screw 64. Under the drive of the screw 64, the moving disk 67 moves towards the center. The movement of the moving disk 67 drives the push rod 68 to move. The push rod 68 pushes the moving plate 616 to limit and fix the inner side of the wound cable. The rotation of the gear 66 drives the toothed plate 611 to move. The toothed plate 611 drives the moving plate 616 to move, so that the moving plate 616 drives the fixing plate 618 to fix the outside of the cable. The double limit fixation ensures that the cable will not loosen after it is taken up, which would affect the next use of the cable.

[0032] Dual-axis motors are existing technology and widely used in society. The specific model of a dual-axis motor can be selected according to actual production needs and cost budget, so it will not be described in detail. All electrical components mentioned in this application are connected to an external power supply and control switch during use.

[0033] The above specific embodiments are merely optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A charging pile cable anti-crushing self-protection retractor, comprising a mounting base (1), wherein one end of the mounting base (1) is provided with a take-up port (2), one side of the mounting base (1) is provided with a charging gun placement slot (7), and a take-up roller (3) is rotatably connected to one side inside the mounting base (1), characterized in that: The take-up roller (3) has openings (4) on both sides of its outer side, and grooves (5) are symmetrically opened at both ends of its outer inner side. A limit assembly (6) is connected to one side of the inside of the take-up roller (3). The limiting component (6) includes a support frame (61) installed inside one side of the take-up roller (3). One end of the support frame (61) is connected to a dual-axis motor (62). The output shafts of the dual-axis motor (62) are fixedly connected to a first bevel gear (63). Both sides of one end of the support frame (61) are connected through a lead screw (64). One end of the lead screw (64) is rotatably connected to both sides of the inner wall of the take-up roller (3). A second bevel gear (65) is fixedly sleeved on the outside of the lead screw (64). Gears (66) are fixedly sleeved on both sides of the outside of the lead screw (64).

2. The charging pile cable anti-crushing self-protection retractor according to claim 1, characterized in that: The lead screw (64) is threaded to both sides of a movable disk (67). One end of the movable disk (67) is rotatably connected to a push rod (68), and one end of the push rod (68) is rotatably connected to a limit plate (69).

3. The charging pile cable anti-crushing self-protection retractor according to claim 2, characterized in that: The limiting plate (69) is located inside the opening (4), and an arc-shaped groove (610) is provided at one end of the limiting plate (69).

4. The charging pile cable anti-crushing self-protection retractor according to claim 1, characterized in that: The gear (66) is meshed with a toothed plate (611) on one side. Both sides of one end of the toothed plate (611) are connected to telescopic rods (612). One end of the telescopic rod (612) is connected to a support plate (613). One end of the support plate (613) is connected to one side of the inner wall of the take-up roller (3).

5. The charging pile cable anti-crushing self-protection retractor according to claim 4, characterized in that: One end of the toothed plate (611) is connected to a sliding plate (614), one end of the sliding plate (614) extends through to the inside of the slide groove (5), and one end of the sliding plate (614) is connected to a sliding rod (615), both ends of the sliding rod (615) are connected to the two sides of the inner wall of the slide groove (5).

6. The charging pile cable anti-crushing self-protection retractor according to claim 5, characterized in that: One end of the slide plate (614) is connected to a movable plate (616), the inner side of the movable plate (616) is connected to an elastic flexible rod (617), and one end of the elastic flexible rod (617) is connected to a fixed plate (618).

7. The charging pile cable anti-crushing self-protection retractor according to claim 6, characterized in that: The elastic flexible rod (617) is made of rubber, and one end of the fixing plate (618) is set with an arc-shaped structure.