Folding charging gun assisting mechanism

Abstract

The invention relates to a power-assisted mechanism of a folding charging gun, and aims to solve the technical problems that the existing similar products are inconvenient to mount, occupy a large space, are difficult to apply to a folding suspension arm or folding rocker arm structure of the charging gun, are difficult to fold and assist in use, and are lack of structural design for preventing the charging gun from falling off. The mechanism comprises a large and small arm assembly and an automatic reset assembly. One end of a wire harness of the mechanism is connected with a charging cable of a charging gun through a charging cable ring. The key point is that the other end of the wire harness is connected with a take-up device after being guided and turned by an automatic reset assembly at the top of the large and small arm assembly, the outer diameter of the take-up device is provided with a shell, the take-up device is arranged on one side of the base, and the large and small arm assembly is arranged on the other symmetrical side of the base. A big arm profile, a small arm fixing sleeve and a small arm profile of the big and small arm assembly are connected in sequence and are arranged on one side of the base in an n shape in a folded state through an automatic reset assembly; the take-up device is pulled to stretch out according to the principle of an automatic rope pulling mechanism, and is pulled again to automatically retract.

Description

Technical Field

[0001] The invention relates to a power assist mechanism of a charging gun for a new energy vehicle, in particular to a foldable charging gun power assist mechanism. Background Art

[0002] New energy vehicles refer to vehicles that use unconventional automotive fuels as a power source and integrate advanced technologies in vehicle power control and drive to form advanced technical principles, new technologies, and new structures. According to their power sources, they are divided into pure electric vehicles, extended-range electric vehicles, hybrid vehicles, hydrogen engine vehicles, etc. Among them, charging piles are the main power supply method for pure electric and hybrid new energy vehicles. They are generally charged by charging guns, while others are charged by charging pile hanging rocker structures. Although this type of charging pile hanging rocker arm structure is set at the top to save space, it involves the retraction and release of the wiring harness, such as the application number 202321633402.6 disclosed in the Chinese patent document, the authorization announcement date is 2024.01.09, and the utility model name is "A kind of electric vehicle charging device"; another example is the application number 202221092152.5 disclosed in the Chinese patent document, the authorization announcement date is 2023.01.31, and the utility model name is "A kind of hanging charging device"; but the above-mentioned hanging arm structure adopts a folding structure design, which occupies a large space, is inconvenient to operate, is difficult to use as a rocker arm, and has less power for the charging gun, and the charging gun is easy to fall to the ground and be damaged during use. Summary of the invention

[0003] In order to overcome the above shortcomings, the purpose of the present invention is to provide a folding charging gun power-assisting mechanism in the art, so as to solve the technical problems that the existing similar products are inconvenient to install, occupy a large space, are inconvenient to operate, are difficult to apply to the folding arm or folding rocker arm structure of the charging gun, are difficult to fold and use with power assistance, and lack the design of the structure to prevent the charging gun from falling. The purpose is achieved through the following technical solution.

[0004] A folding charging gun assist mechanism, the mechanism includes a large and small arm assembly and an automatic reset assembly, one end of the wiring harness of the mechanism is connected to the charging cable of the charging gun through a charging wire ring, and the base of the mechanism is installed on the top or one side of the charging cabinet of the new energy vehicle through the bottom skirt; the key point of its structural design is that the other end of the wiring harness is connected to the wire take-up device after the guide change of the automatic reset assembly on the top of the large and small arm assembly, the outer diameter of the wire take-up device is provided with a shell, the wire take-up device is arranged on one side of the base, and the large and small arm assembly is arranged on the other side of the base symmetrically, and the large and small arm assembly The large arm profile, the small arm fixing sleeve, and the small arm profile are connected in sequence and are arranged on one side of the base in a folded state in a "J" shape through the automatic reset assembly. The above-mentioned wire take-up device is provided with a shell according to the required outer diameter, and the wire take-up device is pulled out according to the principle of the existing automatic rope pulling mechanism, and is automatically retracted when pulled again.

[0005] One end of the big arm profile of the big and small arm assembly is hinged and fixed to one side of the base through the big arm rotating shaft, and the other end of the big arm profile is hinged and fixed to one end of the small arm fixing sleeve through the pulley rotating shaft. At the same time, the other end of the small arm fixing sleeve is hinged and fixed to one end of the small arm profile through the small arm rotating shaft, and the end of the small arm profile is inserted into the sleeve body fixed in the small arm fixing sleeve. The other end of the small arm profile is provided with a protruding harness, and the small arm rotating shaft and the big arm rotating shaft are respectively provided with bearings. The above is a specific structural embodiment of the big and small arm assembly.

[0006] When the small arm profile of the large and small arm assembly is folded, a hook is arranged on the outside. The above structure is convenient for hanging and placing the charging gun.

[0007] In the folded state, the forearm profile of the forearm assembly and the base are respectively provided with anti-collision blocks on both sides of the hinged fixing point. The above structure prevents collision and plays a role of limiting.

[0008] The automatic reset assembly at the top of the large and small arm assembly includes a torsion spring, a connecting rod, a roller and a pulley. After one end of the wire harness extending from the wire take-up device is guided and changed in direction through the large arm shaft extending from the top of the base, it is guided and changed in direction again through the pulley shaft at the top of one end of the extended small arm fixing sleeve, and then enters the small arm shaft hinge at the top of the other end of the small arm fixing sleeve to continue to guide and change in direction, and finally extends out from the roller at the top of the other end of the small arm profile after being guided and changed in direction. The roller is vertically arranged in the roller bracket, and the pulley is horizontally arranged on the pulley shaft; a connecting rod is arranged between the roller bracket and a flange at the top of the small arm shaft, and another connecting rod is arranged between the other flange at the top of the large arm shaft and the top of the pulley shaft. The large arm shaft and the small arm shaft are respectively provided with torsion springs, and the small arm shaft at the top of the flange and the end of the large arm shaft are respectively provided with nuts. The above is a specific structural embodiment of the automatic reset assembly, which is mainly used for guiding and changing the direction of the wire harness and automatic reset of large and small arm assemblies.

[0009] One end of the torsion spring at the boom shaft and the forearm shaft is fixed to the through hole at the corresponding flange, and the through holes are equidistantly arranged on the flange ring surface. The other end of the torsion spring is fixed to the support cover at the corresponding boom shaft or forearm shaft below the torsion spring. The extended ends of the boom shaft and the forearm shaft below the support cover are provided with baffles, and the wire harness at the boom shaft and the forearm shaft is guided and changed to the gap between the baffle and the support cover. The gap between the baffle and the support cover on the outside of the wire harness is provided with a limiting column; the top of the forearm fixing sleeve at the outer end corner of the pulley is provided with a positioning screw. The above structure facilitates the fixing of the two ends of the torsion spring and the adjustment of the torque, that is, one end of the torsion spring can be hooked on the through holes at different flanges, and at the same time, the wire harness is prevented from falling out, and the guide direction is stably changed.

[0010] A custom angle assembly is provided at the extension portion of the wire harness of the forearm profile, and the wire harness passes through a wire sleeve at the top of the gun head of the custom angle assembly at the end of the forearm profile and through a wire buckle at one side of the bottom of the gun head.

[0011] The inner wire harness of the gun head and the forearm profile of the large and small arm components form an angle of 45 degrees. The above angle is not limited to 45 degrees and can be customized according to the needs of use.

[0012] The wiring harness is a nylon wiring harness in an automatically shrinking form, thereby further improving the automatic tightening force of the wiring harness.

[0013] The skirt plate at the bottom of the base is mounted on the slide rail of the charging cabinet, so that the mechanism can be easily moved by means of the slide rail.

[0014] The present invention has reasonable structural design, convenient installation, simple operation, and small space occupation, and is particularly convenient for the arm to be lifted or swung for self-recovery, thereby preventing the charging gun from falling to the ground; the present invention is suitable for use as a folding charging gun assisting mechanism, as well as a structural improvement of similar products. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the present invention.

[0016] Figure 2 yes Figure 1 Schematic diagram of the rear structure, with the outer shell omitted.

[0017] Figure 3 yes Figure 1 A schematic diagram of the top structure, in which AA and BB sections are shown.

[0018] Figure 4 yes Figure 3 AA cross-sectional structure diagram, the dotted line in the figure is the slide rail structure on the top of the charging cabinet.

[0019] Figure 5 yes Figure 3 Schematic diagram of the BB cross-sectional structure.

[0020] Serial number and name of the attached drawings: 1. Base, 101. Skirt, 2. Shell, 3. Upper arm profile, 4. Lower arm fixing sleeve, 401. Sleeve, 402. Positioning screw, 5. Lower arm profile, 6. Hook, 7. Gun head, 701. Wire buckle, 8. Nylon wire harness, 9. Charging wire ring, 10. Baffle, 11. Support cover, 12. Torsion spring, 13. Flange, 14. Connecting rod, 15. Roller, 16. Roller bracket, 17. Wire sleeve, 18. Wire take-up device, 19. Pulley, 20. Anti-collision block, 21. Charging cabinet. DETAILED DESCRIPTION

[0021] Now, the structure and use of the present invention will be further described in conjunction with the accompanying drawings. Figure 1-Figure 5As shown, the mechanism includes an arm assembly, an automatic reset assembly and a customized angle assembly. One end of the wiring harness 8 of the mechanism is connected to the charging cable of the charging gun through a charging wire ring 9, and the base 1 of the mechanism is installed on the top or one side of the charging cabinet 21 of the new energy vehicle through a bottom skirt 101; the other end of the wiring harness is connected to the wire take-up device 18 after the guide deflection of the automatic reset assembly on the top of the arm assembly, and the outer diameter of the wire take-up device is provided with a shell 2, the wire take-up device is arranged on one side of the base, and the arm assembly is arranged on the other side of the base symmetrically. The arm profile 3, the forearm fixing sleeve 4, and the forearm profile 5 of the arm assembly are connected in sequence and are arranged in a "J" shape on one side of the base in a folded state through the automatic reset assembly. Its specific structure is as follows: one end of the upper arm profile of the above-mentioned large and small arm assemblies is hinged and fixed to one side of the base through the upper arm rotating shaft, and the other end of the upper arm profile is hinged and fixed to one end of the small arm fixing sleeve through the pulley rotating shaft. At the same time, the other end of the small arm fixing sleeve is hinged and fixed to one end of the small arm profile through the small arm rotating shaft. At the same time, the end of the small arm profile is inserted into the sleeve body 401 fixed in the small arm fixing sleeve, and the other end of the small arm profile is provided with a protruding harness, and the small arm rotating shaft and the upper arm rotating shaft are respectively provided with bearings. At the same time, the outer side of the small arm profile of the large and small arm assemblies is provided with a hook 6 in the folded state; the two sides of the hinged fixing place of the small arm profile of the large and small arm assemblies and the base in the folded state are respectively provided with anti-collision blocks 20.

[0022] The automatic reset assembly at the top of the above-mentioned large and small arm assemblies includes a torsion spring 12, a connecting rod 14, a roller 15 and a pulley 19. After one end of the wire harness extending out of the wire take-up is guided and changed direction at the large arm shaft extending out of the top of the base, it is guided and changed direction again by the pulley shaft at the top of one end of the extended small arm fixing sleeve, and then enters the small arm shaft hinge at the top of the other end of the small arm fixing sleeve to continue to be guided and changed direction. After the roller is finally guided and changed direction, it extends out from the top of the other end of the small arm profile. The roller is vertically arranged in the roller bracket 16, and the pulley is horizontally arranged on the pulley shaft; a connecting rod is provided between the roller bracket and a flange 13 at the top of the small arm shaft, and another connecting rod is provided between another flange at the top of the large arm shaft and the top of the pulley shaft. The large arm shaft and the small arm shaft are respectively provided with torsion springs, and nuts are respectively provided at the ends of the small arm shaft and the large arm shaft at the top of the flange. One end of the torsion spring at the boom shaft and the forearm shaft is fixed to the through hole at the corresponding flange, and the through hole is equidistantly arranged on the ring surface of the flange. The other end of the torsion spring is fixed to the support cover 11 at the corresponding boom shaft or forearm shaft below the torsion spring. The protruding ends of the boom shaft and the forearm shaft below the support cover are provided with baffles 10, and the wiring harness at the boom shaft and the forearm shaft is respectively guided and redirected to the gap between the baffle and the support cover. The gap between the baffle and the support cover on the outside of the wiring harness is provided with a limiting column; the top of the forearm fixing sleeve at the outer end corner of the pulley is provided with a positioning screw 402. A customized angle assembly is provided at the protruding part of the wiring harness of the forearm profile, and the wiring harness passes through the wire sleeve 17 at the top of the gun head 7 of the customized angle assembly at the end of the forearm profile and passes through the wire buckle 701 on the bottom side of the gun head; the wiring harness in the gun head forms a 45-degree angle with the forearm profile of the large and small arm assemblies.

[0023] When in use, the forearm profile is opened in the opposite direction according to the folding direction of the large and small arm components of the mechanism, and the forearm profile can open the large arm profile through the forearm fixing sleeve, and the large arm profile is further rotated and opened according to the large arm rotating shaft. In the above process, the corresponding torsion spring is deformed and generates torque, and the wire harness is pulled out, and the wire harness is automatically retracted through the wire take-up device when it is pulled again. At the same time, the forearm profile is released, and the forearm profile and the large arm profile are automatically retracted to the initial folding state through the corresponding torsion spring.

[0024] According to the above structure and usage characteristics, further, the above wiring harness is an automatically shrinking nylon wiring harness; the skirt plate 101 at the bottom of the base is installed on the slide rail of the charging cabinet.

[0025] In summary, the current market requires charging piles to be foldable, thin, and have a self-reset function; there are few products that solve these two problems, and this mechanism can better solve the above customer pain points. This mechanism is a folding charging gun assist mechanism, which involves the technical field of foldable charging gun assist mechanisms used in charging piles. It is connected by large and small arms, and the wire collector provides power to assist the charging gun. The mechanism has the following characteristics: 1. The mechanism can be folded or installed in the charging cabinet in the form of a slide rail to reduce space occupancy; 2. The mechanism is in the form of automatic reset to reduce manual operation; 3. The wiring harness of the mechanism extends at a certain angle to make the wiring harness more smooth; 4. The charging cable of the charging gun is fixed on the wiring harness, which not only prevents the charging gun from being thrown directly to the ground, but also reduces the weight of the charging cable, making it easier for people to move the charging cable; 5. The wiring harness is a nylon wiring harness in an automatically shrinking form. After charging, the wiring harness automatically tightens to further prevent the charging gun from falling to the ground.

Claims

1. A foldable charging gun assist mechanism, the mechanism comprising a large and small arm assembly and an automatic reset assembly, one end of the wiring harness (8) of the mechanism is connected to the charging cable of the charging gun through a charging wire ring (9), and the base (1) of the mechanism is installed on the top or one side of the charging cabinet (21) of the new energy vehicle through a bottom skirt (101); characterized in that The other end of the wire harness (8) is connected to a wire take-up device (18) after being guided and redirected by an automatic reset assembly at the top of the large and small arm assemblies. The outer diameter of the wire take-up device is provided with a housing (2). The wire take-up device is arranged on one side of the base (1). The large and small arm assemblies are arranged on the other side of the base symmetrically. The large and small arm assemblies have a large arm profile (3), a small arm fixing sleeve (4), and a small arm profile (5) connected in sequence and arranged on one side of the base in a "J" shape in a folded state through the automatic reset assembly.

2. The folding charging gun assist mechanism according to claim 1, characterized in that One end of the upper arm profile (3) of the upper and lower arm assemblies is hingedly fixed to one side of the base (1) via the upper arm rotating shaft, and the other end of the upper arm profile is hingedly fixed to one end of the lower arm fixing sleeve (4) via the pulley rotating shaft. The other end of the lower arm fixing sleeve is hingedly fixed to one end of the lower arm profile (5) via the lower arm rotating shaft. At the same time, the end of the lower arm profile is inserted into a sleeve body (401) fixed in the lower arm fixing sleeve. The other end of the lower arm profile is provided with a protruding wire harness (8), and bearings are respectively provided at the lower arm rotating shaft and the upper arm rotating shaft.

3. The folding charging gun assist mechanism according to claim 2, characterized in that The forearm profile (5) of the forearm and arm assembly is provided with a hook (6) on the outer side when in a folded state.

4. The folding charging gun assist mechanism according to claim 2, characterized in that Anti-collision blocks (20) are respectively provided on both sides of the hinged fixing point of the forearm profile (5) and the base (1) of the forearm assembly in the folded state.

5. The folding charging gun assist mechanism according to claim 2, characterized in that The automatic reset assembly at the top of the large and small arm assemblies comprises a torsion spring (12), a connecting rod (14), a roller (15) and a pulley (19). One end of the wire harness (8) extending from the wire take-up device (18) is guided and changed in direction through the large arm shaft extending from the top of the base (1), and then guided and changed in direction again through the pulley shaft at the top of one end of the extended small arm fixing sleeve (4). Then, the wire harness enters the small arm shaft hinge at the top of the other end of the small arm fixing sleeve and continues to be guided and changed in direction. Then, the wire harness is finally guided and changed in direction and extends out from the top of the other end of the small arm profile (5). The roller is vertically arranged in the roller bracket (16), and the pulley is horizontally arranged on the pulley shaft. A connecting rod is arranged between the roller bracket and a flange (13) at the top of the small arm shaft, and another connecting rod is arranged between another flange at the top of the large arm shaft and the top of the pulley shaft. The large arm shaft and the small arm shaft are respectively provided with torsion springs, and nuts are respectively arranged at the ends of the small arm shaft and the large arm shaft at the top of the flange.

6. The folding charging gun assist mechanism according to claim 5, characterized in that One end of the torsion spring (12) at the boom shaft and the forearm shaft is respectively fixed to the through hole at the corresponding flange (13), and the through holes are equidistantly arranged on the ring surface of the flange. The other end of the torsion spring is respectively fixed to the support cover (11) at the corresponding boom shaft or forearm shaft below the torsion spring. The extended ends of the boom shaft and the forearm shaft below the support cover are respectively provided with baffles (10). The wiring harness (8) at the boom shaft and the forearm shaft is respectively guided and redirected to the gap between the baffle and the support cover. A limiting column is provided in the gap between the baffle and the support cover on the outside of the wiring harness; a positioning screw (402) is provided on the top of the forearm fixing sleeve (4) at the outer end corner of the pulley (19).

7. The folding charging gun assist mechanism according to claim 2, characterized in that A custom angle assembly is provided at the protruding portion of the wire harness (8) of the forearm profile (5), and the wire harness passes through a wire sleeve (17) at the top of the gun head (7) of the custom angle assembly at the end of the forearm profile and through a wire buckle (701) at one side of the bottom of the gun head.

8. The folding charging gun assist mechanism according to claim 7, characterized in that The wire harness (8) inside the gun head (7) and the forearm profile (5) of the forearm and arm assemblies form an angle of 45 degrees.

9. The folding charging gun assist mechanism according to claim 1, characterized in that The wiring harness (8) is a nylon wiring harness in an automatically shrinkable form.

10. The folding charging gun assist mechanism according to claim 1, characterized in that The skirt plate (101) at the bottom of the base (1) is mounted on a slide rail of the charging cabinet (21).

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