Adjustable pay-off mechanism of charging pile cable take-up and pay-off device

Abstract

The utility model belongs to the field of charging piles, and particularly relates to an adjustable pay-off mechanism of a charging pile cable take-up and pay-off device, which comprises a fixing frame, a driving wheel and a cable pressing wheel, the driving wheel is rotatably arranged on the fixing frame and is in linkage fit with a driving mechanism of the cable take-up and pay-off device, and the cable pressing wheel is arranged on the fixing frame. A cable pressing cavity allowing a cable to penetrate through is formed between the cable pressing wheel and the driving wheel, an adjusting piece used for driving the cable pressing wheel to move is arranged on the fixing frame, the driving force of the adjusting piece enables the cable pressing wheel to move, and adjustment of the size of the cable pressing cavity in the horizontal direction is achieved; the wire pressing wheel is driven by the adjusting piece to move, so that the size of the wire clamping cavity is adjusted, the wire diameter change or tightness requirement can be met, the use requirements of round and flat cables can be met, and the universality is higher. And the adjusting piece adopts a bolt structure design, so that the cost is lower and the adjustment is more convenient.

Description

Technical Field

[0001] This utility model belongs to the field of charging pile technology, specifically relating to an adjustable cable delivery mechanism for a charging pile cable delivery and take-up device. Background Technology

[0002] Charging stations, also known as electric vehicle charging stations or electric vehicle power supply equipment, are devices that provide electrical energy to electric vehicles, enabling them to store enough electricity to support their operation. When charging an electric vehicle, the charging gun needs to be pulled out of the charging station's mounting box. Because the car's charging interface is low to the ground, using the charging gun requires dragging the charging cable. The charging cable is long and heavy, making this time-consuming, laborious, and difficult to operate. Furthermore, each time the cable is charged, its insulation layer rubs against the ground, causing damage and shortening its lifespan, potentially leading to safety hazards. Therefore, charging stations with electric cable retraction mechanisms have emerged on the market.

[0003] The existing charging pile's electric cable reeling and unloading device has a cable diameter adjustment function, but it cannot adapt to round and flat charging cables, resulting in poor versatility. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings and deficiencies of the existing technology and to provide an adjustable cable delivery mechanism for a charging pile cable delivery device that can adapt to both round and flat charging cables.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: An adjustable cable delivery mechanism for a charging pile cable delivery device includes a fixed frame, a drive wheel, and a pressure wheel. The drive wheel is rotatably mounted on the fixed frame and is linked with the drive mechanism of the cable delivery device. The pressure wheel is mounted on the fixed frame, and a pressure cavity for the cable to pass through is formed between the pressure wheel and the drive wheel. An adjustment component for driving the pressure wheel to move is provided on the fixed frame. The driving force of the adjustment component causes the pressure wheel to move, thereby adjusting the horizontal size of the pressure cavity.

[0006] In some embodiments, the fixing frame includes two fixing plates and a fixing shaft disposed between the two fixing plates, the driving wheel and the pressing wheel are respectively disposed between the two fixing plates, and the pressing cavity is formed between the two fixing plates and the driving wheel and the pressing wheel.

[0007] In some embodiments, a positioning shaft is provided between the two fixed plates, and the pressure wheel is rotatably mounted on the positioning shaft. The two ends of the positioning shaft are respectively inserted into the two adjustment holes of the two fixed plates. The adjustment component includes two adjustment bolts respectively mounted on the two fixed plates and two nuts respectively mounted on the two fixed plates at the corresponding two adjustment bolts. The two adjustment bolts pass through the two bolts and abut against one side of the two ends of the positioning shaft. The pressure wheel moves with the positioning shaft and abuts against the outer peripheral wall of the cable.

[0008] In some embodiments, a bearing is provided between the positioning shaft and the pressure wheel.

[0009] In some embodiments, a retaining ring is provided on the fixed shaft above one of the fixed plates, and a washer is provided on the fixed shaft between the retaining ring and one of the fixed plates.

[0010] In some embodiments, the fixed shaft has two locking protrusions at both ends that cooperate with the mechanism frame of the cable winding device. The base plate and partition plate of the mechanism frame are respectively provided with two locking holes that cooperate with the two locking protrusions. The two locking protrusions are respectively inserted into the two locking holes.

[0011] In some embodiments, a drive shaft is linked to the drive wheel, and two positioning holes that cooperate with the drive shaft are respectively provided on the two fixed plates. The drive shaft passes through the two positioning holes and forms a rotational connection between the drive shaft and the two fixed plates.

[0012] In some embodiments, the upper end of the drive shaft passes through the partition of the mechanism frame and is linked to a transmission gear. The transmission gear is linked to the drive mechanism of the cable winding and unwinding device. The transmission gear causes the drive shaft to rotate, and the drive wheel rotates with the drive shaft and drives the cable to move.

[0013] In some embodiments, the lower end of the drive shaft has a frustum portion that cooperates with the mechanism frame, the base plate of the mechanism frame is provided with a limiting hole that engages with the frustum portion, and a bushing is provided between the frustum portion and the limiting hole.

[0014] In some embodiments, the diameter of the drive wheel is larger than the diameter of the pressure wheel, and both the drive wheel and the pressure wheel have arc-shaped grooves on their outer peripheral walls that contact the cable.

[0015] The beneficial effects of this utility model are as follows: By adjusting the displacement of the wire clamping wheel driven by the adjusting component, the size of the wire clamping cavity can be adjusted to adapt to changes in wire diameter or tightness requirements, thus making it suitable for the use of round and flat cables, and thus more versatile. The adjusting component adopts a bolt structure design, which reduces costs and makes adjustment more convenient. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of this utility model.

[0017] Figure 1 This is a perspective view of the charging pile cable retraction device of this utility model;

[0018] Figure 2 This is an assembly drawing of the wire feeding mechanism and the drive mechanism according to an embodiment of the present utility model;

[0019] Figure 3 This is a perspective view of the wire feeding mechanism according to an embodiment of the present utility model;

[0020] Figure 4 This is an exploded view of the wire feeding mechanism according to an embodiment of the present invention. Detailed Implementation

[0021] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0023] The directional and positional terms used in this utility model, such as up, down, front, back, left, right, inside, outside, top, bottom, side, etc., are only for reference to the accompanying drawings. Therefore, the directional and positional terms used are for the purpose of explaining and understanding this utility model, and not for limiting the scope of protection of this utility model.

[0024] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments:

[0025] like Figures 1-3As shown, an adjustable cable delivery mechanism for a charging pile cable reel includes a fixed frame 1, a drive wheel 2, and a clamping wheel 3. The drive wheel 2 is rotatably mounted on the fixed frame 1 and is linked to the drive mechanism 41 of the cable reel 4. The clamping wheel 3 is mounted on the fixed frame 1, and a clamping cavity 30 for the cable 5 to pass through is formed between the clamping wheel 3 and the drive wheel 2. An adjusting component 6 is provided on the fixed frame 1 for driving the clamping wheel 3 to move. The driving force of the adjusting component 6 causes the clamping wheel 3 to move, thereby adjusting the size of the clamping cavity 30 in the horizontal direction. By driving the clamping wheel to move through the adjusting component, the size of the clamping cavity can be adjusted to adapt to changes in wire diameter or tightness requirements, thus adapting to the usage requirements of round and flat cables, making it more versatile. The adjusting component adopts a bolt structure design, which reduces costs and makes adjustment more convenient.

[0026] like Figure 1 , 3As shown in Figure 4, the fixing frame 1 includes two fixing plates 11 and a fixing shaft 12 disposed between the two fixing plates 11. The drive wheel 2 and the pressure wheel 3 are respectively disposed between the two fixing plates 11, and a pressure cavity 30 is formed between the two fixing plates 11 and the drive wheel 2 and the pressure wheel 3. The fixing frame adopts a double fixing plate structure design, which facilitates the assembly of the drive wheel, the pressure wheel and the fixing frame, and improves assembly efficiency. A positioning shaft 13 is disposed between the two fixing plates 11. The pressure wheel 3 is rotatably disposed on the positioning shaft 13. The two ends of the positioning shaft 13 are respectively inserted into the two adjustment holes 110 of the two fixing plates 11. The adjustment component 6 includes two adjusting bolts 61 respectively disposed on the two fixing plates 11 and two nuts 62 respectively disposed on the two fixing plates 11 at the corresponding positions of the two adjusting bolts 61. The two adjusting bolts 61 pass through the two bolts 62 and respectively abut against one side of the two ends of the positioning shaft 13. The pressure wheel 3 moves with the positioning shaft 13 and abuts against the outer peripheral wall of the cable 5. Two adjusting bolts push the positioning shaft to move, which in turn moves the pressure roller, thus adjusting the position of the pressure roller. This design is simpler, lower in cost, and more convenient to adjust. It allows for adjustment of the clamping cavity size to accommodate changes in wire diameter or tightness. A bearing 14 is installed between the positioning shaft 13 and the pressure roller 3. The bearing reduces friction and maintains operational accuracy, thereby improving the reliability of the pressure roller's rotation. A retaining spring 15 is installed on the fixed shaft 12 above one of the fixed plates 11, and a washer 16 is installed between the retaining spring 15 and one of the fixed plates 11. The retaining spring prevents loosening, facilitating the assembly of the fixed shaft and the fixed plate and improving assembly efficiency. The fixed shaft 12 has two locking bosses 121 at both ends that mate with the mechanism frame 42 of the cable winding device 4. The base plate 421 and partition plate 422 of the mechanism frame 42 are respectively provided with two locking holes 423 that mate with the two locking bosses 121. The two locking bosses 121 are respectively inserted into the two locking holes 423. The locking bosses at both ends of the fixed shaft are respectively engaged with the base plate and partition plate of the mechanism frame. The fixed shaft provides support, which helps to improve the overall strength of the fixed frame and facilitates the assembly of the fixed shaft and the mechanism frame, resulting in higher assembly efficiency.

[0027] like Figure 1 and 4As shown, a drive shaft 17 is linked to the drive wheel 2. Two positioning holes 111 are respectively provided on the two fixed plates 11 to mate with the drive shaft 17. The drive shaft 17 passes through the two positioning holes 111, forming a rotational connection between the drive shaft 17 and the two fixed plates 11. The drive wheel passes through the positioning holes of the two fixed plates via the drive shaft, facilitating the assembly of the drive shaft with the two fixed plates. The upper end of the drive shaft 17 passes through the partition plate 422 of the mechanism frame 42 and is linked to a transmission gear 7. The transmission gear 7 is linked to the drive mechanism 41 of the cable winding device 4. The transmission gear 7 causes the drive shaft 17 to rotate, and the drive wheel 2 rotates with the drive shaft 17, causing the cable 5 to move. The drive shaft adopts a gear transmission structure design, which ensures more reliable transmission between the drive shaft and the drive mechanism. The lower end of the drive shaft 17 has a frustum 171 that mates with the frame 42. The base plate 421 of the frame 42 has a limiting hole 4211 that engages with the frustum 171. A bushing 18 is positioned between the frustum 171 and the limiting hole 4211. The drive shaft engages with the limiting hole in the base plate via the frustum, facilitating assembly between the drive shaft and the frame, making assembly more convenient. The diameter of the drive wheel 2 is larger than that of the pressure wheel 3, and both the drive wheel 2 and the pressure wheel 3 have arc-shaped grooves 60 on their outer peripheral walls that contact the cable 6. The larger diameter design of the drive wheel increases the contact area between the drive wheel and the cable, improves friction, ensures effective transmission of traction force, prevents slippage, and enhances the reliability of the cable feeding mechanism.

[0028] The above description is only one embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model; the scope of protection of the present utility model is defined by the claims in the claims, and all equivalent changes and modifications made in accordance with the utility model are within the scope of protection of the present utility model patent.

Claims

1. An adjustable cable delivery mechanism for a charging pile cable reeling and delivery device, characterized in that: The device includes a fixed frame, a drive wheel, and a wire pressing wheel. The drive wheel is rotatably mounted on the fixed frame and is linked to the drive mechanism of the cable take-up and take-down device. The wire pressing wheel is mounted on the fixed frame, and a wire pressing cavity is formed between the wire pressing wheel and the drive wheel for the cable to pass through. The fixed frame is provided with an adjustment component for driving the displacement of the wire pressing wheel. The driving force of the adjustment component causes the wire pressing wheel to move, thereby adjusting the size of the horizontal direction of the wire pressing cavity.

2. The adjustable cable delivery mechanism of the charging pile cable winding and unwinding device according to claim 1, characterized in that: The fixing frame includes two fixing plates and a fixing shaft disposed between the two fixing plates. The driving wheel and the pressing wheel are respectively disposed between the two fixing plates, and the pressing cavity is formed between the two fixing plates and the driving wheel and the pressing wheel.

3. The adjustable cable delivery mechanism of the charging pile cable winding and unwinding device according to claim 2, characterized in that: A positioning shaft is provided between the two fixed plates. The pressure wheel is rotatably mounted on the positioning shaft. The two ends of the positioning shaft are respectively inserted into the two adjustment holes of the two fixed plates. The adjustment components include two adjustment bolts respectively mounted on the two fixed plates and two nuts respectively mounted on the two fixed plates at the corresponding two adjustment bolts. The two adjustment bolts pass through the two bolts and respectively abut against one side of the two ends of the positioning shaft. The pressure wheel moves with the positioning shaft and abuts against the outer wall of the cable.

4. The adjustable cable delivery mechanism of the charging pile cable winding and unwinding device according to claim 3, characterized in that: A bearing is provided between the positioning shaft and the pressure wheel.

5. The adjustable cable delivery mechanism of the charging pile cable winding and unwinding device according to claim 2 or 3, characterized in that: A retaining ring is provided on the fixed shaft above one of the fixed plates, and a washer is provided on the fixed shaft between the retaining ring and one of the fixed plates.

6. The adjustable cable delivery mechanism of the charging pile cable winding and unwinding device according to claim 5, characterized in that: The fixed shaft has two locking protrusions at both ends that cooperate with the mechanism frame of the cable winding and unwinding device. The base plate and partition plate of the mechanism frame are respectively provided with two locking holes that cooperate with the two locking protrusions. The two locking protrusions are respectively inserted into the two locking holes.

7. The adjustable cable delivery mechanism of the charging pile cable winding and unwinding device according to claim 2 or 3, characterized in that: The drive wheel is equipped with a drive shaft, and the two fixed plates are respectively provided with two positioning holes that cooperate with the drive shaft. The drive shaft passes through the two positioning holes and forms a rotational connection between the drive shaft and the two fixed plates.

8. The adjustable cable delivery mechanism of the charging pile cable winding and unwinding device according to claim 7, characterized in that: The upper end of the drive shaft passes through the partition of the mechanism frame and is linked with a transmission gear. The transmission gear is linked with the drive mechanism of the cable winding and unwinding device. The transmission gear causes the drive shaft to rotate, and the drive wheel rotates with the drive shaft and drives the cable to move.

9. The adjustable cable delivery mechanism of the charging pile cable winding and unwinding device according to claim 8, characterized in that: The lower end of the drive shaft has a frustum portion that cooperates with the mechanism frame. The base plate of the mechanism frame is provided with a limiting hole that engages with the frustum portion. A bushing is provided between the frustum portion and the limiting hole.

10. The adjustable cable delivery mechanism of the charging pile cable winding and unwinding device according to claim 1 or 2, characterized in that: The diameter of the drive wheel is larger than that of the pressure wheel, and both the drive wheel and the pressure wheel have arc-shaped grooves on their outer peripheral walls that contact the cable.

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