Hanging type rocker arm mechanism of charging pile

Abstract

The utility model relates to a hanging type rocker arm mechanism of a charging pile, aiming at solving the technical problems that the existing similar products are inconvenient to use, and particularly the similar products are lack of reset structures and positioning structures. The rocker arm mechanism comprises a base and a take-up device, a rotating shaft of the take-up device is driven by a coil spring transmission assembly and a ratchet wheel braking assembly of the base below the rotating shaft to freely swing and reset, a wiring harness in the take-up device extends out through a pipe fitting with one side serving as a rocker arm for use, and the rocker arm and the take-up device are connected into a whole. According to the key points, a coil spring transmission assembly is arranged in a lower fixing seat of the base, a ratchet wheel braking assembly is arranged in an upper fixing seat at the top of the lower fixing seat, the rotating shaft is sequentially connected with a driving gear of the coil spring transmission assembly, a ratchet wheel of the ratchet wheel braking assembly and a rocker arm on one side of the take-up device at the same time, and a nut is arranged at one end of the rotating shaft at the joint. A square head at the other end of the rotating shaft is fixed to a square hole in the center of the driving gear, and the lower fixing base and the upper fixing base are connected into a whole through a screw on one side of the top of the upper fixing base.

Description

Technical Field

[0001] The utility model relates to a charging pile for new energy vehicles, and is a hanging rocker arm mechanism for a charging pile. Background Art

[0002] New energy vehicles refer to vehicles that use unconventional vehicle fuels as power sources and integrate advanced technologies in vehicle power control and drive, forming vehicles with advanced technical principles, new technologies, and new structures; they are divided into pure electric vehicles, range-extended electric vehicles, hybrid vehicles, hydrogen engine vehicles, etc. according to different power sources. Among them, the charging pile is the main power supply method for pure electric and hybrid new energy vehicles. Generally, it charges by means of a charging gun, and some others charge by means of a hanging rocker arm structure of the charging pile. Although this kind of hanging rocker arm structure of the charging pile is set at the top to save space, it involves the winding and unwinding of wire harnesses. For example, the application number disclosed in the Chinese patent document is 202321633402.6, the authorization announcement date is January 9, 2024, and the utility model name is "An Electric Vehicle Charging Device"; another example is the application number disclosed in the Chinese patent document is 202221092152.5, the authorization announcement date is January 31, 2023, and the utility model name is "A Hanging Charging Device"; however, the above products and similar products have no reset structure, resulting in users having to move and reset themselves, which is very inconvenient for customers to use; at the same time, there is no positioning structure, resulting in the free swing of the rocker arm, which will affect the use. Summary of the Invention

[0003] To overcome the above deficiencies, the purpose of the utility model is to provide a hanging rocker arm mechanism for a charging pile to the art, so as to solve the technical problems that the existing similar products are relatively inconvenient to use, specifically, the lack of a reset structure and a positioning structure in similar products. Its purpose is achieved through the following technical solutions.

[0004] A hanging rocker arm mechanism for a charging pile, the rocker arm mechanism includes a base and a wire reel. The rotating shaft of the wire reel is driven to swing freely and reset by a torsion spring transmission component and a ratchet braking component of the lower base below. The wire harness inside the wire reel extends out through a pipe fitting on one side as a rocker arm. The rocker arm is integrated with the wire reel. The base is arranged on the top of the charging pile main body or a rocker column on one side of the charging pile main body. The key point of its structural design is that a torsion spring transmission component is arranged in the lower fixed seat of the base, and a ratchet braking component is arranged in the upper fixed seat on the top of the lower fixed seat. The rotating shaft is sequentially connected to the driving gear of the torsion spring transmission component, the ratchet of the ratchet braking component, and the rocker arm on one side of the wire reel or the bottom of the wire reel at the same time. A nut is arranged at the end of one end of the rotating shaft at the connection, and the square head at the other end of the rotating shaft is fixed in the square hole at the center of the driving gear. The lower fixed seat and the upper fixed seat are integrated by a screw on one side of the top of the upper fixed seat. The above wire reel is provided with a housing according to the required outer diameter, and the wire reel is pulled out according to the principle of the existing automatic rope pulling mechanism and automatically retracted when pulled again.

[0005] A key pin with a rectangular cross-section is provided in the first pin slot on one side of the rotating shaft. One side of the key pin protruding from the first pin slot of the rotating shaft is sequentially buckled to the second pin slots in the inner diameters of the shaft holes at the lower gear limiting sleeve, ratchet, upper gear limiting sleeve, and T-shaped bushing. The lower gear limiting sleeve and the lower bushing are sleeved and connected to the shaft hole at the lower fixed seat, the upper gear limiting sleeve and the upper bushing are sleeved and connected to the shaft hole at the upper fixed seat, the T-shaped bushing is arranged in the shaft hole of the rocker arm, and the wire harness inside the rocker arm is pulled out or retracted by winding around the outer diameter of the T-shaped bushing inside the rocker arm; on one side of the driving gear of the gear assembly of the coil spring transmission assembly, it meshes with one side of the driven gear. A coil spring is provided inside the lower fixed seat below the driven gear. One central end of the coil spring is fixed to the central shaft at the bottom of the driven gear, and the other outer diameter end of the coil spring is fixed to the coil spring fixing pin inside the lower fixed seat; a bearing is provided in the inner diameter of the shaft hole of the upper fixed seat, and an oil cup is provided on one side of the top of the upper fixed seat at the bearing. The above is a specific structural embodiment of the coil spring transmission assembly of the rocker arm mechanism, that is, the specific design of the reset structure of the rocker arm mechanism. It realizes its automatic reset and steering use through the cooperation of the coil spring and the gear; the above key pin further connects the corresponding components into one body for rotation and reset.

[0006] A fork is provided on one side of the ratchet inside the upper fixed seat of the ratchet braking assembly. The claw head at one end of the fork meshes with the tooth edge on one side of the outer diameter of the ratchet. A pin is fixedly arranged at the central hole at the other end of the fork inside the upper fixed seat. A tension spring is provided on the unlocking side between the two ends of the fork. One end of the tension spring is fixed to the unlocking side of the fork, and the other end of the tension spring is fixed to the tension spring fixing pin inside the upper fixed seat. The above is a specific structural embodiment of the ratchet braking assembly of the rocker arm mechanism, that is, the specific design of the positioning structure of the rocker arm mechanism. It realizes the clutch switching through the meshing of the ratchet and the fork.

[0007] A third pin slot is symmetrically provided in the inner diameter of the shaft hole on the other side of the inner diameter of the shaft hole of the ratchet. On both sides of the outer diameter between the tooth edge of the fork on this side of the ratchet and the tooth edge of the outer diameter of the symmetrically arranged other ratchet, there are special-shaped teeth higher than the outer diameter tooth edge. The above structure facilitates any side of the ratchet to be used as the tooth edge for the claw head of the fork to brake, which is convenient for the assembly and production of the ratchet.

[0008] The T-shaped bushing is limited to one end of the step at the middle protrusion of the rotating shaft, and the upper gear limiting sleeve, upper bushing, ratchet, lower bushing, and lower gear limiting sleeve are sequentially limited to the other end of the step at the middle protrusion of the rotating shaft. The above structure facilitates the assembly of the rotating shaft and the fixation of the corresponding components.

[0009] The pipe fitting of the rocker arm is a square pipe, and the pipe diameter at the T-shaped bushing of the square pipe is larger than the pipe diameter at the square pipe in front of the bushing.

[0010] The wire harness extends out from one side of the bottom of the end through the end of the pipe fitting at the rocker arm.

[0011] The structure design of the utility model is reasonable, convenient for production, assembly, use and installation, especially with good positioning and resetting effects; it is suitable for use as a hanging swing arm mechanism of a charging pile and the structural improvement of similar products. Brief Description of the Drawings

[0012] Figure 1 FIG. 1 is an exploded structural schematic diagram of the first embodiment of the utility model, and the framed part in the figure is an enlarged view of the structure at the ratchet wheel.

[0013] Figure 2 is Figure 1 the sectional structural schematic diagram after assembly.

[0014] Figure 3 is Figure 1 the three-dimensional structural schematic diagram after assembly, and the dotted line in the figure is the schematic diagram of the internal structure.

[0015] Figure 4 is Figure 3 the schematic diagram of the internal dotted line part, and the dotted line in the figure is the schematic diagram of the internal structure of the lower fixing seat.

[0016] Figure 5 is Figure 1 the structural schematic diagram of the use state after assembly.

[0017] Figure 6 FIG. 2 is the sectional structural schematic diagram of the second embodiment of the utility model.

[0018] Reference Numerals and Names of the Drawings: 1. Base, 2. Torsion Spring, 3. Gear Assembly, 301. Driving Gear, 302. Driven Gear, 4. Lower Gear Limiting Sleeve, 5. Lower Bush, 6. Rotating Shaft, 601. First Pin Slot, 602. Step, 7. Key Pin, 8. Lower Fixing Seat, 9. Ratchet Wheel, 901. Special-shaped Tooth, 10. Upper Gear Limiting Sleeve, 11. Upper Bush, 12. Upper Fixing Seat, 13. Screw, 14. Oil Cup, 15. Nut, 16. Swing Arm, 17. Wire Reel, 18. T-shaped Bush, 19. Wiring Harness, 20. Torsion Spring Fixing Pin, 21. Torsion Spring, 22. Pin, 23. Fork, 24. Torsion Spring Fixing Pin, 25. Buffer Block, 26. Charging Pile Main Body, 27. End. Embodiment

[0019] Now, in combination with the drawings, the structure and use of the utility model will be further described. As Figures 1 - 5Embodiment 1 shown. The rocker arm mechanism includes a base 1 and a wire reel 17. The rotating shaft 6 of the wire reel is driven by a torsion spring transmission assembly and a ratchet braking assembly of the lower base to swing freely and reset. The wire harness 19 inside the wire reel extends out through a pipe fitting that serves as a rocker arm 16 on one side. The rocker arm is integrated with the wire reel, and the base is arranged on the top of the charging pile main body 26. A torsion spring transmission assembly is provided in the lower fixing seat 8 of the base, and a ratchet braking assembly is provided in the upper fixing seat 12 on the top of the lower fixing seat. The rotating shaft 6 is sequentially connected to the driving gear 301 of the torsion spring transmission assembly, the ratchet 9 of the ratchet braking assembly, and the rocker arm 16 on one side of the wire reel. A nut 15 is provided at the end of one end of the rotating shaft at the connection. The square head at the other end of the rotating shaft is fixed in the square hole at the center of the driving gear. The lower fixing seat and the upper fixing seat are integrated by a screw 13 on one side of the top of the upper fixing seat. A key pin 7 with a rectangular cross-section is provided in the first pin slot 601 on one side of the rotating shaft. The side of the key pin protruding from the first pin slot of the rotating shaft is sequentially buckled in the second pin slots of the inner diameters of the shaft holes of the lower gear limiting sleeve 4, the ratchet, the upper gear limiting sleeve 10, and the T-shaped shaft sleeve 18. The lower gear limiting sleeve and the lower shaft sleeve 5 are sleeved and connected to the shaft hole at the lower fixing seat. The upper gear limiting sleeve and the upper shaft sleeve 11 are sleeved and connected to the shaft hole at the upper fixing seat. The T-shaped shaft sleeve is arranged in the shaft hole of the rocker arm. The wire harness inside the rocker arm is pulled out or taken in by winding around the outer diameter of the T-shaped shaft sleeve in the rocker arm. One side of the driving gear of the gear assembly 3 of the torsion spring transmission assembly meshes with one side of the driven gear 302. A torsion spring 2 is provided in the lower fixing seat below the driven gear. One central end of the torsion spring is fixed to the central shaft at the bottom of the driven gear, and the outer diameter end of the torsion spring is fixed to the torsion spring fixing pin 24 in the lower fixing seat. A bearing is provided in the inner diameter of the shaft hole of the upper fixing seat, and an oil cup 14 is provided on one side of the top of the upper fixing seat at the bearing.

[0020] On one side of the ratchet in the upper fixing seat of the above-mentioned ratchet braking assembly, there is a fork 23. The claw head at one end of the fork meshes with one side tooth edge of the outer diameter of the ratchet. A pin 22 is fixedly arranged in the central hole at the other end of the fork in the upper fixing seat. A tension spring 21 is provided on the unlocking side between the two ends of the fork. One end of the tension spring is fixed to the unlocking side of the fork, and the other end of the tension spring is fixed to the tension spring fixing pin 20 in the upper fixing seat. A third pin slot is symmetrically provided on the inner diameter of the shaft hole on the other side of the second pin slot on the inner diameter of the shaft hole of the ratchet. On both sides of the outer diameter between the tooth edge of the fork on this side of the ratchet and the tooth edge of the outer diameter of the symmetrically arranged ratchet on the other side, there are special-shaped teeth 901 that are higher than the outer diameter tooth edge. The T-shaped shaft sleeve is limited to one end of the step 602 at the middle convex part of the rotating shaft, and the upper gear limiting sleeve, the upper shaft sleeve, the ratchet, the lower shaft sleeve, and the lower gear limiting sleeve are sequentially limited to the other end of the step at the middle convex part of the rotating shaft. The pipe fitting of the rocker arm is a square pipe, and the pipe diameter at the T-shaped shaft sleeve of the square pipe is larger than the pipe diameter of the square pipe in front of the shaft sleeve.

[0021] During use, pull out the wire harness and rotate the rocker arm mechanism, which will be automatically positioned. Then, connect the charging gun or insert the charging head at the end of the wire harness into the charging port of the new energy vehicle to start charging. Release the wire harness, and it will be automatically retracted by the wire winder, and the rocker arm mechanism will automatically reset.

[0022] According to the above structure and usage characteristics, further, as Figure 6 shown, the wire harness extends out from one side at the bottom of the end through the end 27 at the end of the pipe fitting at the rocker arm. The rotating shaft is sequentially connected to the driving gear of the torsion spring transmission assembly, the ratchet of the ratchet brake assembly, and the bottom of the wire winder at the same time.

[0023] In summary, this mechanism is a rocker arm for an application charging pile, which relates to the technical field of a charging gun assisting mechanism. It realizes automatic reset through gear connection and a torsion spring providing restoring torque. This mechanism has the following characteristics: 1. The rocker arm and the wire winder are integrated; 2. A torsion spring is used as the torsion energy storage structure, and the torsion is increased through the matching of large and small gears; 3. A ratchet fork limiting structure is adopted to achieve multi-angle positioning.

Claims

1. A hanging swing arm mechanism for a charging pile. The swing arm mechanism includes a base (1) and a wire reel (17). The rotating shaft (6) of the wire reel is driven by a spiral spring transmission assembly and a ratchet braking assembly under the base to swing freely and reset. The wire harness (19) inside the wire reel extends out through a pipe fitting that serves as a swing arm (16) on one side. The swing arm is integrated with the wire reel, and the base is arranged on the top of the charging pile main body (26) or on a rocker column on one side of the charging pile main body; characterized in that A coiled spring transmission assembly is provided inside the lower fixing base (8) of the base (1). A ratchet braking assembly is provided inside the upper fixing base (12) at the top of the lower fixing base. The rotating shaft (6) is successively and simultaneously connected to the driving gear (301) of the coiled spring transmission assembly, the ratchet (9) of the ratchet braking assembly, and the rocker arm (16) on one side of the wire winder (17) or the bottom of the wire winder. A nut (15) is provided at the end of one end of the rotating shaft at the connection. The square head at the other end of the rotating shaft is fixed in the square hole at the center of the driving gear. The lower fixing base and the upper fixing base are integrated by a screw (13) on one side at the top of the upper fixing base.

2. The charging pile hanging rocker arm mechanism according to claim 1, characterized in that A key pin (7) with a rectangular cross-section is provided in the first pin slot (601) on one side of the rotating shaft (6). One side of the key pin protruding from the first pin slot of the rotating shaft is successively engaged with the second pin slots in the inner diameters of the shaft holes at the lower gear limiting sleeve (4), the ratchet (9), the upper gear limiting sleeve (10), and the T-shaped shaft sleeve (18). The lower gear limiting sleeve and the lower shaft sleeve (5) are sleeved and connected to the shaft hole at the lower fixing base (8). The upper gear limiting sleeve and the upper shaft sleeve (11) are sleeved and connected to the shaft hole at the upper fixing base (12). The T-shaped shaft sleeve is provided in the shaft hole of the rocker arm (16). The wire harness (19) inside the rocker arm is pulled out or retracted by winding around the outer diameter of the T-shaped shaft sleeve inside the rocker arm. On one side of the driving gear (301) of the gear assembly (3) of the coiled spring transmission assembly, it meshes with one side of the driven gear (302). A coiled spring (2) is provided inside the lower fixing base below the driven gear. The central end of the coiled spring is fixed to the central shaft at the bottom of the driven gear, and the outer diameter end of the coiled spring is fixed to the coiled spring fixing pin (24) inside the lower fixing base. The inner diameter of the shaft hole at the upper fixing base is provided with a bearing, and an oil cup (14) is provided on one side at the top of the upper fixing base at the bearing.

3. The charging pile hanging rocker arm mechanism according to claim 2, characterized in that A fork (23) is provided on one side of the ratchet (9) inside the upper fixing base (12) of the ratchet braking assembly. The claw head at one end of the fork meshes with one side tooth edge of the outer diameter of the ratchet. A pin (22) is fixedly provided in the central hole at the other end of the fork inside the upper fixing base. A tension spring (21) is provided on the unlocking side between the two ends of the fork. One end of the tension spring is fixed to the unlocking side of the fork, and the other end of the tension spring is fixed to the tension spring fixing pin (20) inside the upper fixing base.

4. The charging pile hanging swing arm mechanism according to claim 3, characterized in that The second pin slot in the inner diameter of the shaft hole at the ratchet (9) is symmetrically provided with a third pin slot on the inner diameter of the shaft hole on the other side. On both sides of the outer diameter between the tooth edge of the fork (23) on this side of the ratchet and the tooth edge of the outer diameter of the symmetrically arranged ratchet on the other side, there are special-shaped teeth (901) protruding above the outer diameter tooth edge.

5. The charging pile hanging swing arm mechanism according to claim 2, wherein The T-shaped shaft sleeve (18) is limited to one end of the step (602) at the middle protrusion of the rotating shaft (6), and the upper gear limiting sleeve (10), the upper shaft sleeve (11), the ratchet (9), the lower shaft sleeve (5), and the lower gear limiting sleeve (4) are successively limited to the other end of the step at the middle protrusion of the rotating shaft.

6. The charging pile hanging swing arm mechanism according to claim 2, wherein The pipe fitting of the rocker arm (16) is a square pipe, and the pipe diameter at the T-shaped shaft sleeve (18) of the square pipe is larger than the pipe diameter of the square pipe in front of the shaft sleeve.

7. The hanging swing arm mechanism of the charging pile according to claim 1, characterized in that The wire harness (19) is directed to extend from one side at the bottom of the end head (27) at the end of the pipe fitting at the rocker arm (16).

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