Electric vehicle charging pile gun wire retracting device

By designing convenient assembly components and limiting structures, the problem of difficult disassembly of the cover plate of the existing electric vehicle charging pile automatic retraction device has been solved, enabling convenient internal maintenance and improving the maintainability of the device.

CN224159176UActive Publication Date: 2026-04-24SHANGHAI CHENGXI ELECTRICAL EQUIPMENT CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI CHENGXI ELECTRICAL EQUIPMENT CO LTD
Filing Date
2025-05-06
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

The existing automatic retraction device for electric vehicle charging station cables has a cover plate that is fixed to the housing with multiple screws. This makes it inconvenient to disassemble the cover plate for repair when the internal chassis, coil spring, and retraction disc are damaged, thus affecting normal use.

Method used

An electric vehicle charging station cable retraction device was designed, comprising a housing, a retraction mechanism, and assembly components. The device releases the constraint of the pull rod by a limiting member, pulls the pull rod to retract the spring-loaded part, moves the pin away from the docking part, and allows the cover plate to be rotated by hand to open the inside of the housing for easy maintenance of the internal structure.

Benefits of technology

It enables convenient disassembly and repair of internally damaged retraction mechanisms, avoiding problems caused by the way the cover plate is fixed, and improving maintenance efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224159176U_ABST
    Figure CN224159176U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of take-up devices, in particular to an electric automobile charging pile gun wire retracting device which comprises a shell, a retracting mechanism and an assembling component, the assembling component comprises an opening and closing piece, a cover plate, a pulling handle, a butt joint piece, a butt joint frame, a pull rod, a springback piece, a plug pin and a limiting piece, and when the retracting mechanism in the shell is damaged, the opening and closing piece is closed. The limiting piece is operated to loosen the pull rod to lose limitation on the pull rod, then the pull rod is pulled to enable the rebounding piece to contract, then the plug pin is far away from the butt joint piece, the pulling handle is held by hand to support the cover plate to rotate through the opening and closing piece so as to open the interior of the shell, and then the contracting mechanism in the shell is maintained. Therefore, the problem that according to an existing electric vehicle charging pile gun line automatic retracting device, after a cover plate is fixed to a shell through a plurality of screws, when an internal chassis, a coil spring and a retracting disc are damaged, the cover plate is inconvenient to disassemble to maintain the internal structure, and then subsequent normal use is affected is solved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of cable retractor technology, and in particular to a cable retraction device for electric vehicle charging piles. Background Technology

[0002] Charging guns at charging stations are mostly external. When using them, you simply drag the cable to the appropriate length to charge the car. However, with these external charging guns, the wires are easily crushed when placed haphazardly, so they need to be retracted. Existing wire retraction devices require manual retraction of the wire harness.

[0003] The prior art (CN217969261U) discloses an automatic retraction device for electric vehicle charging station cables, including a housing, a cover plate, a chassis, and a fixed shaft. The retraction disc and the lower coil spring are an integral structure, and the retraction disc and the coil spring are sleeved on the fixed shaft. A rolling bearing is provided in the through hole of the retraction disc to reduce the rotational friction between the coil spring and the retraction disc, thereby improving the cable retraction efficiency. The cover plate covers the retraction disc, the coil spring, the fixed shaft, and the rolling bearing in the housing with multiple screws. The retraction disc and the coil spring are an integral structure. When charging, pulling the cable will cause the wire rope to drive the retraction disc and the coil spring to rotate. The coil spring stores energy. After charging is completed, the energy of the coil spring is automatically released, and the cable is retracted to the front of the charging station.

[0004] However, with the above method, since the cover plate is fixed to the housing with multiple screws, it is inconvenient to disassemble the cover plate to repair the internal structure when the internal chassis, coil spring and retraction disc are damaged, which will affect the normal use thereafter. Utility Model Content

[0005] The purpose of this utility model is to provide an electric vehicle charging station cable retraction device, which aims to solve the problem that in existing electric vehicle charging station cable automatic retraction devices, the cover plate is fixed to the housing with multiple screws, making it inconvenient to disassemble the cover plate for internal structure repair when the internal chassis, coil spring and retraction disc are damaged, thus affecting subsequent normal use.

[0006] To achieve the above objectives, this utility model provides an electric vehicle charging station cable retraction device, including a housing, a retraction mechanism, and assembly components.

[0007] The assembly components include opening and closing parts, cover plates, pull handles, docking parts, docking frames, pull rods, spring-loaded parts, pins, and limiting parts;

[0008] The opening and closing component is disposed on one side of the housing; the cover plate is fixedly connected to the opening and closing component and is located on one side of the opening and closing component; the pull handle is fixedly connected to the cover plate and is located on one side of the cover plate; the docking component is disposed on one side of the cover plate; the docking frame is fixedly connected to the housing and is located on one side of the housing; the pull rod is slidably connected to the docking frame and is located on one side of the docking frame; the spring-loaded component is disposed on one side of the pull rod; the pin is fixedly connected to the pull rod and is located on one side of the pull rod; the limiting component is disposed on one side of the pull rod.

[0009] The opening and closing component includes an opening and closing frame, a rotating shaft, and a connecting block. The opening and closing frame is fixedly connected to the housing and located on one side of the housing. The rotating shaft is rotatably connected to the opening and closing frame and located on one side of the opening and closing frame. The connecting block is fixedly connected to the rotating shaft and to the cover plate, and located on one side of the rotating shaft.

[0010] The docking component includes a connecting part and a docking block. The connecting part is fixedly connected to the cover plate and is located on one side of the cover plate. The docking block is fixedly connected to the connecting part and is located on one side of the connecting part.

[0011] The spring-loaded component includes a spring-loaded plate, a first rod, a second rod, and a return spring. The spring-loaded plate is fixedly connected to the pull rod and located on one side of the pull rod. The first rod is fixedly connected to the spring-loaded plate and located on one side of the spring-loaded plate. The second rod is slidably connected to the first rod and fixedly connected to the docking frame, and located on one side of the first rod. The return spring is fixedly connected to both the spring-loaded plate and the docking frame, and located between the spring-loaded plate and the docking frame.

[0012] The limiting component includes a limiting block, a locking screw, and a fixing seat. The limiting block is fixedly connected to the pull rod and is located on one side of the pull rod. The locking screw is threadedly connected to the limiting block and is located on one side of the limiting block. The fixing seat is fixedly connected to the housing and is located on one side of the housing.

[0013] This utility model discloses an electric vehicle charging station cable retraction device. When the retraction mechanism inside the housing is damaged, the limiting member is operated to release the pull rod, thus removing the restriction on the pull rod. Then, the pull rod is pulled to retract the spring member, and the pin moves away from the docking member. The pull handle is held by hand, and the cover plate is rotated through the opening and closing member to open the inside of the housing. Then, the retraction mechanism inside the housing can be repaired. This solves the problem in existing electric vehicle charging station cable automatic retraction devices where, because the cover plate is fixed to the housing with multiple screws, it is inconvenient to disassemble the cover plate to repair the internal structure when the internal chassis, coil spring, and retraction disc are damaged, thus affecting subsequent normal use. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a side view of the entire utility model.

[0017] Figure 3 This is a cross-sectional view of the entire utility model.

[0018] Figure 4 This is a cross-sectional view of the docking frame, tie rod, spring-loaded component, limiting component, and pin of this utility model.

[0019] 101-Housing shell, 102-Retraction mechanism, 103-Opening and closing part, 104-Cover plate, 105-Pull handle, 106-Matching part, 107-Matching frame, 108-Pull rod, 109-Rebound part, 110-Pin, 111-Limiting part, 112-Opening and closing frame, 113-Rotating shaft, 114-Connecting block, 115-Connecting part, 116-Matching block, 117-Rebound plate, 118-First rod, 119-Second rod, 120-Reset spring, 121-Limiting block, 122-Locking screw, 123-Fixing seat. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0021] Please see Figures 1-4 ,in, Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 2 This is a side view of the entire utility model. Figure 3 This is a cross-sectional view of the entire utility model. Figure 4 This is a cross-sectional view of the docking frame, tie rod, spring-loaded component, limiting component, and pin of this utility model.

[0022] This utility model provides a retractable charging cable device for electric vehicle charging piles: It includes a housing 101, a retractable mechanism 102, and an assembly assembly. The assembly assembly includes an opening / closing component 103, a cover plate 104, a pull handle 105, a connecting component 106, a connecting frame 107, a pull rod 108, a spring-loaded component 109, a pin 110, and a limiting component 111. The opening / closing component 103 includes an opening / closing frame 112, a rotating shaft 113, and a connecting block 114. The connecting component 106 includes a connecting part 115 and a connecting block 116. The spring-loaded component... Component 109 includes a spring plate 117, a first rod 118, a second rod 119, and a return spring 120. The limiting component 111 includes a limiting block 121, a locking screw 122, and a fixing seat 123. The aforementioned solution solves the problem in existing electric vehicle charging pile automatic retraction devices where, after the cover plate 104 is fixed to the housing 101 with multiple screws, it is inconvenient to disassemble the cover plate 104 to repair the internal structure when the internal chassis, coil spring, and retraction disc are damaged, thus affecting subsequent normal use.

[0023] In this specific embodiment, the housing 101 is used to support the assembly of the retraction mechanism 102, which is used to retract the charging pile's charging cable. The retraction mechanism 102 is prior art, such as the retraction disc, rolling bearing, coil spring, chassis, wire rope, grooved wheel, protective ring, fixed shaft, and grooved wheel mounting bracket described in the patent document with reference to publication number CN217969261U.

[0024] The opening / closing component 103 is disposed on one side of the housing 101; the cover plate 104 is fixedly connected to the opening / closing component 103 and is located on one side of the opening / closing component 103; the pull handle 105 is fixedly connected to the cover plate 104 and is located on one side of the cover plate 104; the docking component 106 is disposed on one side of the cover plate 104; the docking frame 107 is fixedly connected to the housing 101 and is located on one side of the housing 101; the pull rod 108 is slidably connected to the docking frame 107 and is located on one side of the docking frame 107; the spring-loaded component 109 is disposed on one side of the pull rod 108; the pin 110 is fixedly connected to the pull rod 108 and is located on one side of the pull rod 108; and the limiting component 111 is disposed on the pull rod 108. On one side, the limiting member 111 is operated to release the pull rod 108, thus removing the restriction on the pull rod 108. Then, the pull rod 108 is pulled to retract the spring member 109, and the pin 110 moves away from the docking member 106. The pull handle 105 is held and the cover plate 104 is rotated through the opening and closing member 103 to open the interior of the housing 101. Then, the retraction mechanism 102 inside the housing 101 is repaired. This solves the problem that in the existing electric vehicle charging pile automatic retraction device, the cover plate 104 is fixed to the housing 101 with multiple screws. When the internal chassis, coil spring and retraction plate are damaged, it is inconvenient to disassemble the cover plate 104 to repair the internal structure, which affects the subsequent normal use.

[0025] Secondly, the opening and closing frame 112 is fixedly connected to the housing 101 and located on one side of the housing 101; the rotating shaft 113 is rotatably connected to the opening and closing frame 112 and located on one side of the opening and closing frame 112; the connecting block 114 is fixedly connected to the rotating shaft 113 and the cover plate, and located on one side of the rotating shaft 113. The opening and closing frame 112 is used to support the rotation of the rotating shaft 113, the rotating shaft 113 is used to drive the connecting block 114 to rotate, and the connecting block 114 is used to support the opening and closing of the cover plate 104.

[0026] Meanwhile, the connecting part 115 is fixedly connected to the cover plate 104 and is located on one side of the cover plate 104; the docking block 116 is fixedly connected to the connecting part 115 and is located on one side of the connecting part 115. The connecting part 115 is used to support the assembly of the docking block 116, and the docking block 116 is used to be inserted into the docking frame 107 to cooperate with the pin 110 for fixation.

[0027] Additionally, the spring plate 117 is fixedly connected to the pull rod 108 and located on one side of the pull rod 108; the first rod 118 is fixedly connected to the spring plate 117 and located on one side of the spring plate 117; the second rod 119 is slidably connected to the first rod 118 and fixedly connected to the docking frame 107 and located on one side of the first rod 118; the return spring 120 is fixedly connected to the spring plate 117 and the docking frame 107 respectively and located between the spring plate 117 and the docking frame 107. The spring plate 117, in conjunction with the return spring 120 in the first rod 118 and the second rod 119, supports the pull rod 108 to drive the pin 110 to spring back, so that the pin 110 can be inserted into the docking block 116.

[0028] Furthermore, the limiting block 121 is fixedly connected to the pull rod 108 and is located on one side of the pull rod 108; the locking screw 122 is threadedly connected to the limiting block 121 and is located on one side of the limiting block 121; the fixing seat 123 is fixedly connected to the housing 101 and is located on one side of the housing 101. Twisting the locking screw 122 on the limiting block 121 inserts it into the fixing seat 123, thereby limiting the position of the pull rod 108.

[0029] When using this utility model, twisting the locking screw 122 loosens the fixing seat 123, thus removing the restriction on the pull rod 108. Then, pulling the pull rod 108 causes the first rod 118 and the second rod 119 to retract the return spring 120, and the pin 110 moves away from the docking block 116. Holding the pull handle 105, the connecting block 114 is driven by the rotating shaft 113 on the opening and closing frame 112 to support the cover plate 104 to rotate, thereby opening the interior of the housing 101. Then, the retraction mechanism 102 inside the housing 101 is repaired. This solves the problem in existing electric vehicle charging pile automatic retraction devices where, because the cover plate 104 is fixed to the housing 101 with multiple screws, it is inconvenient to disassemble the cover plate 104 to repair the internal structure when the internal chassis, coil spring, and retraction disc are damaged, thus affecting subsequent normal use.

[0030] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that implementing all or part of the above embodiments and making equivalent changes in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A retractable charging cable device for electric vehicle charging piles, comprising a housing and a retractable mechanism, characterized in that, It also includes assembly components; The assembly components include opening and closing parts, cover plates, pull handles, docking parts, docking frames, pull rods, spring-loaded parts, pins, and limiting parts; The opening and closing component is disposed on one side of the housing; the cover plate is fixedly connected to the opening and closing component and is located on one side of the opening and closing component; the pull handle is fixedly connected to the cover plate and is located on one side of the cover plate; the docking component is disposed on one side of the cover plate; the docking frame is fixedly connected to the housing and is located on one side of the housing; the pull rod is slidably connected to the docking frame and is located on one side of the docking frame; the spring-loaded component is disposed on one side of the pull rod; the pin is fixedly connected to the pull rod and is located on one side of the pull rod; the limiting component is disposed on one side of the pull rod.

2. The electric vehicle charging station cable retraction device as described in claim 1, characterized in that, The opening and closing component includes an opening and closing frame, a rotating shaft, and a connecting block. The opening and closing frame is fixedly connected to the housing and located on one side of the housing. The rotating shaft is rotatably connected to the opening and closing frame and located on one side of the opening and closing frame. The connecting block is fixedly connected to the rotating shaft and to the cover plate, and located on one side of the rotating shaft.

3. The electric vehicle charging station cable retraction device as described in claim 2, characterized in that, The docking component includes a connecting part and a docking block. The connecting part is fixedly connected to the cover plate and is located on one side of the cover plate. The docking block is fixedly connected to the connecting part and is located on one side of the connecting part.

4. The electric vehicle charging station cable retraction device as described in claim 3, characterized in that, The spring-loaded component includes a spring-loaded plate, a first rod, a second rod, and a return spring. The spring-loaded plate is fixedly connected to the pull rod and located on one side of the pull rod. The first rod is fixedly connected to the spring-loaded plate and located on one side of the spring-loaded plate. The second rod is slidably connected to the first rod and fixedly connected to the docking frame, and located on one side of the first rod. The return spring is fixedly connected to both the spring-loaded plate and the docking frame, and located between the spring-loaded plate and the docking frame.

5. The electric vehicle charging station cable retraction device as described in claim 4, characterized in that, The limiting component includes a limiting block, a locking screw, and a fixing seat. The limiting block is fixedly connected to the pull rod and is located on one side of the pull rod. The locking screw is threadedly connected to the limiting block and is located on one side of the limiting block. The fixing seat is fixedly connected to the housing and is located on one side of the housing.

Citation Information

Patent Citations

  • Charging pile gun wire retracting device

    CN217969261U