Hanging type rocker arm mechanism of charging pile

Abstract

The invention relates to a hanging type rocker arm mechanism of a charging pile, and aims to solve the technical problems that 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 invention relates to a charging pile for a new energy vehicle, in particular to a hanging rocker arm mechanism for the charging pile. 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 products and similar products have no reset structure, resulting in users having to move and reset them by themselves, which is very inconvenient for customers; at the same time, there is no positioning structure, causing the rocker arm to swing freely, which will affect its use. Summary of the invention

[0003] In order to overcome the above shortcomings, the purpose of the present invention is to provide a charging pile hanging rocker mechanism to the art, so as to solve the technical problem that the existing similar products are inconvenient to use, specifically the lack of reset structure and positioning structure of similar products. The purpose is achieved through the following technical solution.

[0004] A charging pile hanging rocker mechanism, the rocker mechanism includes a base and a wire take-up device, the rotating shaft of the wire take-up device is driven to swing freely and reset through a coil spring transmission component and a ratchet brake component of the lower base, the wire harness in the wire take-up device is extended through a pipe fitting as a rocker arm on one side, the rocker arm and the wire take-up device are connected as a whole, and the base is arranged on the top of the charging pile body or the rocker column on one side of the charging pile body. The key points of its structural design are that a coil spring transmission component is arranged in the lower fixed seat of the base, a ratchet brake component is arranged in the upper fixed seat on the top of the lower fixed seat, the rotating shaft is sequentially connected with the driving gear of the coil spring transmission component, the ratchet of the ratchet brake component, and the rocker arm on one side of the wire take-up device or the bottom of the wire take-up device, 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 to the square hole in the center of the driving gear, and the lower fixed seat and the upper fixed seat are connected as a whole through a screw on one side of the top of the upper fixed seat. 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] A key pin with a rectangular cross-section is provided in the first pin groove on one side of the rotating shaft, and one side of the key pin protruding out of the first pin groove at the rotating shaft is simultaneously engaged with the lower gear limiting sleeve, the ratchet, the upper gear limiting sleeve, and the second pin groove on the inner diameter of the shaft hole at the T-shaped shaft sleeve in sequence. The lower gear limiting sleeve and the lower shaft sleeve are sleeved and connected to be arranged in the shaft hole at the lower fixed seat, the upper gear limiting sleeve and the upper shaft sleeve are sleeved and connected to be arranged in the shaft hole at the upper fixed seat, the T-shaped shaft sleeve is arranged in the shaft hole at the rocker arm, and the wiring harness in the rocker arm is pulled out or retracted through the outer diameter of the T-shaped shaft sleeve in the rocker arm; one side of the driving gear of the gear assembly of the coil spring transmission assembly is meshed with one side of the driven gear, and a coil spring is provided in the lower fixed seat below the driven gear, the center end of the coil spring is fixed to the central axis at the bottom of the driven gear, and the other end of the outer diameter of the coil spring is fixed to the coil spring fixing pin in the lower fixed seat; a bearing is provided at the inner diameter of the shaft hole of the upper fixed seat, and an oil cup is provided on the top side of the upper fixed seat at the bearing. The above is a specific structural embodiment of the coil spring transmission component of the rocker mechanism, that is, the specific design of the reset structure of the rocker mechanism, which realizes its automatic reset and steering use through the cooperation of the coil spring and the gear; the above-mentioned key pin enables the corresponding components to be further connected as a whole for rotation and reset.

[0006] A shift fork is provided on one side of the ratchet wheel in the upper fixed seat of the ratchet brake assembly, and the claw head at one end of the shift fork meshes with the tooth edge of one side of the outer diameter of the ratchet wheel. The pin at the center hole of the other end of the shift fork is fixedly arranged in the upper fixed seat, and a tension spring is provided on the unlocking side between the two ends of the shift fork, one end of the tension spring is fixed to the unlocking side of the shift fork, and the other end of the tension spring is fixed to the tension spring fixing pin in the upper fixed seat. The above is a specific structural embodiment of the ratchet brake assembly of the rocker mechanism, that is, the specific design of the positioning structure of the rocker mechanism, and the clutch switching is realized by the meshing of the ratchet wheel and the shift fork.

[0007] The third pin slot is symmetrically arranged on the inner diameter of the shaft hole on the other side of the second pin slot of the ratchet wheel, and the outer diameter of the ratchet wheel on the side of the shift fork is symmetrically arranged with the third pin slot on the inner diameter of the shaft hole on the other side, and the outer diameters of the two sides between the tooth edge of the ratchet wheel on the side of the shift fork and the tooth edge of the outer diameter of the ratchet wheel on the other side are symmetrically arranged with special-shaped teeth that are higher than the outer diameter tooth edge. The above structure facilitates the tooth edge of either side of the ratchet wheel to be used as the brake of the pawl head of the shift fork, which facilitates the assembly and production of the ratchet wheel.

[0008] The T-shaped shaft sleeve is limited to one end of the step at the middle protrusion 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 protrusion of the rotating shaft. The above structure is convenient for assembling the rotating shaft and fixing the corresponding parts.

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

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

[0011] The invention has reasonable structural design, convenient production and assembly, and convenient use and installation, especially good positioning and resetting effects; it is suitable for use as a hanging rocker arm mechanism for charging piles, as well as a structural improvement of similar products. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the explosion structure of the first embodiment of the present invention, and the framed part in the figure is an enlarged structure of the ratchet part.

[0013] Figure 2 yes Figure 1 Schematic diagram of the sectional structure after assembly.

[0014] Figure 3 yes Figure 1 Schematic diagram of the three-dimensional structure after assembly, in which the dotted line is a schematic diagram of the internal structure.

[0015] Figure 4 yes Figure 3 The schematic diagram of the structure of the internal dotted line part is shown in the figure, where the dotted line is a schematic diagram of the internal structure of the lower fixed seat.

[0016] Figure 5 yes Figure 1 Schematic diagram of the structure in the assembled usage state.

[0017] Figure 6 It is a schematic cross-sectional structural diagram of embodiment 2 of the present invention.

[0018] Serial number and name of the accompanying drawings: 1. Base, 2. Coil spring, 3. Gear assembly, 301. Driving gear, 302. Driven gear, 4. Lower gear limit sleeve, 5. Lower shaft sleeve, 6. Rotating shaft, 601. First pin groove, 602. Step, 7. Key pin, 8. Lower fixed seat, 9. Ratchet, 901. Special-shaped teeth, 10. Upper gear limit sleeve, 11. Upper shaft sleeve, 12. Upper fixed seat, 13. Screw, 14. Oil cup, 15. Nut, 16. Rocker arm, 17. Wire take-up device, 18. T-shaped shaft sleeve, 19. Wiring harness, 20. Tension spring fixing pin, 21. Tension spring, 22. Pin, 23. Fork, 24. Coil spring fixing pin, 25. Buffer block, 26. Charging pile body, 27. End. Implementation

[0019] Now, the structure and use of the present invention will be further described in conjunction with the accompanying drawings. Figure 1-Figure 5In the first embodiment shown, the rocker mechanism includes a base 1 and a wire take-up device 17. The rotating shaft 6 of the wire take-up device is driven to swing freely and reset through the coil spring transmission assembly and the ratchet brake assembly of the lower base. The wire harness 19 in the wire take-up device extends out through one side as a pipe fitting of the rocker arm 16. The rocker arm and the wire take-up device are connected as a whole, and the base is arranged on the top of the charging pile body 26; a coil spring transmission assembly is provided in the lower fixed seat 8 of the base, and a ratchet brake assembly is provided in the upper fixed seat 12 at the top of the lower fixed seat. The rotating shaft 6 is connected to the driving gear 301 of the coil spring transmission assembly, the ratchet 9 of the ratchet brake assembly, and the rocker arm 16 on one side of the wire take-up device in sequence. A nut 15 is provided 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 to the square hole in the center of the driving gear. The lower fixed seat and the upper fixed seat are connected as a whole by a screw 13 on one side of the top of the upper fixed seat. A key pin 7 with a rectangular cross section is provided in the first pin groove 601 on one side of the rotating shaft. The key pin side protruding out of the first pin groove at the rotating shaft is simultaneously buckled with the second pin groove of the inner diameter of the shaft hole at the lower gear limit sleeve 4, the ratchet, the upper gear limit sleeve 10, and the T-type shaft sleeve 18 in sequence. The lower gear limit sleeve and the lower shaft sleeve 5 are sleeved and connected to the shaft hole at the lower fixed seat, the upper gear limit sleeve and the upper shaft sleeve 11 are sleeved and connected to the shaft hole at the upper fixed seat, the T-type shaft sleeve is arranged at the shaft hole at the rocker arm, and the inner diameter of the rocker arm The wire harness is wrapped around the outer diameter of the T-shaped shaft sleeve in the rocker arm and pulled out or put in; one side of the driving gear at the gear assembly 3 of the coil spring transmission assembly is meshed with one side of the driven gear 302, and a coil spring 2 is provided in the lower fixed seat below the driven gear, and one end of the center of the coil spring is fixed to the central axis at the bottom of the driven gear, and the other end of the outer diameter of the coil spring is fixed to the coil spring fixing pin 24 in the lower fixed seat; a bearing is provided at the inner diameter of the shaft hole of the upper fixed seat, and an oil cup 14 is provided on the top side of the upper fixed seat at the bearing.

[0020] A shift fork 23 is provided on one side of the ratchet in the upper fixed seat of the ratchet brake assembly. The claw head at one end of the shift fork meshes with the tooth edge on one side of the outer diameter of the ratchet. The pin 22 at the center hole of the other end of the shift fork is fixed in the upper fixed seat. A tension spring 21 is provided on the unlocking side between the two ends of the shift fork. One end of the tension spring is fixed to the unlocking side of the shift fork, and the other end of the tension spring is fixed to the tension spring fixing pin 20 in the upper fixed seat. A third pin groove is symmetrically provided on the inner diameter of the shaft hole on the other side of the second pin groove of the inner diameter of the ratchet. Special-shaped teeth 901 that are higher than the outer diameter tooth edge are symmetrically provided on both sides of the outer diameter between the tooth edge of the ratchet on this side of the shift fork and the tooth edge of the outer diameter of the ratchet on the other side that is symmetrically arranged. The T-shaped shaft sleeve is limited at one end of the step 602 at the middle protrusion 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 at the other end of the step at the middle protrusion of the rotating shaft. The pipe fitting of the rocker arm is a square pipe, and the pipe diameter of the square pipe at the T-shaped sleeve is larger than the pipe diameter of the square pipe in front of the sleeve.

[0021] When in use, pull out the wiring harness and turn the rocker arm mechanism, which will automatically position itself; then, connect the charging gun, or connect the charging head at the end of the wiring harness to the charging port of the new energy vehicle to start charging; release the wiring harness, the wiring harness will be automatically retracted through the wire take-up device, and the rocker arm mechanism will automatically reset.

[0022] According to the above structure and usage characteristics, further, Figure 6 As shown, the wire harness extends out from one side of the bottom of the end through the end 27 of the pipe end at the rocker arm; the rotating shaft is connected to the driving gear of the coil spring transmission assembly, the ratchet of the ratchet brake assembly, and the bottom of the wire take-up device in sequence.

[0023] In summary, this mechanism is a rocker arm for charging piles, which involves the technical field of charging gun assist mechanism. Through gear connection, the coil spring provides restoring torque to achieve automatic reset. This mechanism has the following characteristics: 1. The rocker arm and the cable take-up device are integrated; 2. The coil spring is used as a torque energy storage structure, and the torque is increased by matching large and small gears; 3. The ratchet fork limiting structure is used to achieve multi-angle positioning.

Claims

1. A charging pile hanging rocker mechanism, the rocker mechanism comprising a base (1) and a wire take-up device (17), the rotating shaft (6) of the wire take-up device being driven to swing freely and reset by a coil spring transmission component and a ratchet brake component of the base below, the wire harness (19) in the wire take-up device extending through a pipe fitting on one side as a rocker arm (16) for use, the rocker arm and the wire take-up device being connected as a whole, the base being arranged on the top of a charging pile body (26) or a rocker column on one side of the charging pile body; characterized in that A coil spring transmission assembly is arranged in the lower fixed seat (8) of the base (1), a ratchet brake assembly is arranged in the upper fixed seat (12) on the top of the lower fixed seat, a rotating shaft (6) is sequentially connected to a driving gear (301) of the coil spring transmission assembly, a ratchet (9) of the ratchet brake assembly, and a rocker arm (16) on one side of the wire take-up device (17) or the bottom of the wire take-up device, a nut (15) is arranged at the end of one end of the rotating shaft at the connection, 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 fixed seat and the upper fixed seat are connected as a whole by a screw (13) on one side of the top of the upper fixed seat.

2. The charging pile hanging rocker arm mechanism according to claim 1 is characterized in that A key pin (7) with a rectangular cross section is provided in a first pin groove (601) on one side of the rotating shaft (6); one side of the key pin protruding out of the first pin groove at the rotating shaft is simultaneously engaged with the lower gear limit sleeve (4), the ratchet (9), the upper gear limit sleeve (10), and the second pin groove of the inner diameter of the shaft hole at the T-shaped shaft sleeve (18) in sequence; the lower gear limit sleeve and the lower shaft sleeve (5) are sleeved and connected to the shaft hole at the lower fixed seat (8); the upper gear limit sleeve and the upper shaft sleeve (11) are sleeved and connected to the shaft hole at the upper fixed seat (12); the T-shaped shaft sleeve is arranged on the rocker arm (16). The shaft hole is located at the rocker arm, and the wire harness (19) in the rocker arm is wound through the outer diameter of the T-shaped shaft sleeve in the rocker arm and pulled out or retracted; the gear assembly (3) of the coil spring transmission assembly meshes with one side of the driven gear (302), and a coil spring (2) is provided in the lower fixed seat below the driven gear, and the center end of the coil spring is fixed to the center axis at the bottom of the driven gear, and the other end of the outer diameter of the coil spring is fixed to the coil spring fixing pin (24) in the lower fixed seat; a bearing is provided at the inner diameter of the shaft hole of the upper fixed seat, and an oil cup (14) is provided on one side of the top of the upper fixed seat at the bearing.

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

4. The charging pile hanging rocker arm mechanism according to claim 3 is characterized in that A third pin groove is symmetrically arranged on the inner diameter of the shaft hole on the other side of the ratchet (9), and symmetrically arranged special-shaped teeth (901) are arranged on the outer diameters of the two sides between the tooth edge of the ratchet on the side of the shift fork (23) and the tooth edge of the outer diameter of the ratchet on the other side.

5. The charging pile hanging rocker arm mechanism according to claim 2, characterized in that The T-shaped shaft sleeve (18) is limited at 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 sequentially limited at the other end of the step at the middle protrusion of the rotating shaft.

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

7. The charging pile hanging rocker arm mechanism according to claim 1 is characterized in that The wiring harness (19) is directed through the end head (27) at the end of the pipe at the rocker arm (16) and extends from one side of the bottom of the end head.

Images