CN109159703B

CN109159703B - Fill electric pile with limit for length function

Info

Publication number: CN109159703B
Application number: CN201811209835.2A
Authority: CN
Inventors: 付振天
Original assignee: Jiangxi Zhonglv Beidou Technology Holding Co ltd
Current assignee: Jiangxi Zhonglv Beidou Technology Holding Co.,Ltd.
Priority date: 2018-10-17
Filing date: 2018-10-17
Publication date: 2020-07-31
Anticipated expiration: 2038-10-17
Also published as: CN109159703A

Abstract

The invention discloses a charging pile with a length limiting function, relates to the field of new energy, and mainly solves the problem that the maximum extending length of a cable cannot be limited by the existing charging pile, so that the cable and a power interface are easy to loosen; the charging pile comprises a pile body, a winding wheel and a cable, wherein the winding wheel is rotatably connected with the pile body through a first rotating shaft; a driving gear is sleeved on the periphery of the shaft body of the first rotating shaft, and a driven gear meshed with the driving gear is arranged above the driving gear; the driven gear is rotatably connected inside the pile body through a second rotating shaft, and a convex column is eccentrically arranged on the end face of the driven gear; the wall of the pile body is provided with a sliding hole, and the convex column is slidably clamped in the sliding hole; the maximum distance between the limiting block and the convex column is smaller than the maximum unreeling length of the cable, and the maximum extending length of the cable can be effectively limited by the device, so that the cable and a power interface are prevented from loosening.

Description

Fill electric pile with limit for length function

Technical Field

The invention relates to the field of new energy, in particular to a charging pile with a length limiting function.

Background

Along with the popularization of new energy vehicles, the charging pile also begins to appear in each corner of a city, the function of the charging pile is similar to that of an oiling machine in a gas station, the charging pile can be fixed on the ground or on the wall, and the charging pile is installed in public buildings (public buildings, markets, public parking lots and the like) and residential area parking lots or charging stations and can charge various types of electric vehicles according to different voltage grades. The input end of the charging pile is directly connected with an alternating current power grid, and the output end of the charging pile is provided with a charging plug for charging the electric automobile. Fill electric pile and generally provide two kinds of charging methods of conventional charging and quick charge, people can use specific charging card to swipe the card and use on the human-computer interaction operation interface that fills electric pile and provide, carry out operations such as corresponding charging method, charging time, expense data printing, fill electric pile display screen and can show data such as the charge volume, expense, charging time.

Traditional electric pile's that fills cable conductor is exposed outside, is damaged easily, has certain potential safety hazard, and for solving this problem, patent No. CN206389142U discloses a fill electric pile, collects the cable in filling electric pile to can pull out or withdraw the cable as required, and then reduced the impaired possibility of cable insulation skin, reduced the risk of electric leakage. However, the patent has a drawback that the winding line is designed to be hidden, so that a user cannot observe the unwinding condition, and the maximum extending length of the cable is unknown, so that when the cable is pulled to the limit length capable of extending, the cable and the power interface are tightened, if the cable is continuously pulled, the cable and the power interface are loosened, and poor contact can be caused for a long time.

Disclosure of Invention

The invention aims to provide a charging pile with a length limiting function so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a charging pile with a length limiting function comprises a pile body, a winding wheel arranged in the pile body and a cable wound on the winding wheel, wherein the winding wheel is rotatably connected with the pile body through a first rotating shaft, one end of the cable is connected with a power supply interface, and the other end of the cable extends out of the pile body and is connected with a charging gun; a driving gear is sleeved on the periphery of the shaft body of the first rotating shaft, and a driven gear meshed with the driving gear is arranged above the driving gear; the driven gear is rotatably connected inside the pile body through a second rotating shaft, and a convex column is eccentrically arranged on the end face of the driven gear; the wall of the pile body is provided with a sliding hole which is in a incomplete circle and has the curvature radius the same as the rotation radius of the convex column, and the convex column is clamped in the sliding hole in a sliding way; a limiting block is arranged in the sliding hole, and the maximum distance between the limiting block and the convex column is smaller than the maximum unreeling length of the cable.

As a further scheme of the invention: the convex column and the driven gear are integrally formed.

As a further scheme of the invention: one end of the limiting block extends out of the sliding hole and is fixed with a connecting plate, a fastening bolt is connected to the connecting plate in a threaded fit mode, and the fastening bolt is abutted to the outer wall of the pile body.

As a further scheme of the invention: the bottom of the pile body is also fixed with a base, and the base is provided with a bolt hole.

As a further scheme of the invention: and a guide wheel is arranged at a position higher than the reel in the pile body, and the guide wheel is arranged on a bracket fixed on the pile body.

As a further scheme of the invention: the periphery cover of first pivot is equipped with the clockwork spring that resets, and the one end of the clockwork spring that resets is fixed in first pivot, and the other end is fixed on the fixed block of connecting in the pile body.

As a further scheme of the invention: and a soft cushion is also arranged on the outer wall of the pile body corresponding to the position of the charging gun.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, through the arrangement of the driving gear, the driven gear, the convex column, the sliding hole and the limiting block, when the charging gun is used, a user holds the charging gun to draw out the cable from the pile body, the reel rotates in the process so as to drive the driving gear to rotate and further drive the driving gear to rotate, the convex column slides in the sliding hole in the rotating process of the driving gear, and the convex column can be in contact with the convex column before the cable is pulled to the limit length capable of extending, so that the driven gear is limited to rotate continuously, the cable is prevented from being unreeled continuously, and looseness caused by pulling between the cable and a power interface is avoided.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of a charging pile with a length limiting function.

Fig. 2 is an enlarged schematic view of a in fig. 1.

Fig. 3 is a schematic structural diagram of a sliding hole in a charging pile with a length limiting function.

Fig. 4 is a schematic structural diagram of a charging pile with a length limiting function according to a second embodiment.

Fig. 5 is a schematic structural diagram of a charging pile with a length limiting function according to a third embodiment.

In the figure: 1-pile body, 11-sliding hole, 12-fixing block, 2-reel, 21-first rotating shaft, 211-driving gear, 212-reset spring, 3-cable, 31-charging gun, 4-driven gear, 41-second rotating shaft, 42-convex column, 5-limiting block, 51-connecting plate, 511-fastening bolt, 6-base, 61-bolt hole, 7-guide wheel and 71-bracket.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1 to 3, in an embodiment of the present invention, a charging pile with a length limiting function includes a pile body 1, a reel 2 disposed inside the pile body 1, and a cable 3 wound on a winding line 2, wherein the reel 2 is rotatably connected to the pile body 1 through a first rotating shaft 21, one end of the cable 3 is connected to a power interface, and the other end of the cable extends out of the pile body 1 and is connected to a charging gun 31;

the driving gear 211 is sleeved on the periphery of the shaft body of the first rotating shaft 21, and the driven gear 4 meshed with the driving gear 211 is arranged above the driving gear 211, so that when a user pulls a cable outwards, the driven gear 4 can rotate along with the driving gear 211, and it should be noted that the number of rotating turns of the reel 2 in the unreeling process is greater than 1, so that the transmission ratio between the driving gear 211 and the driven gear 4 should be increased as much as possible in the design process;

the driven gear 4 is rotatably connected inside the pile body 1 through a second rotating shaft 41, a convex column 42 is eccentrically arranged on the end face of the driven gear 4, and the convex column 42 and the driven gear 4 are integrally formed; a sliding hole 11 is formed in the shell wall of the pile body 1, the sliding hole 11 is in a incomplete circle shape, the curvature radius of the sliding hole is the same as the rotation radius of the convex column 42, and the convex column 42 is slidably clamped in the sliding hole 11; a limiting block 5 is arranged in the sliding hole 11, the maximum distance between the limiting block 5 and the convex column 42 (i.e. the distance between the convex column 42 and the limiting block 5 when the cable 3 is completely retracted into the pile body 1) is smaller than the maximum unwinding length of the cable 3, i.e. before the cable 3 is pulled to the limit length capable of extending out, the convex column 42 can be in contact with the convex column 42, so that the driven gear 4 is limited to continue rotating, the cable 3 is prevented from continuing unwinding, and the cable 3 and a power interface are prevented from loosening due to pulling;

further, in order to improve the flexibility of the use of the whole device, the limiting block 5 is designed to be adjustable in this embodiment, specifically, one end of the limiting block 5 extends out of the sliding hole 11 and is fixed with a connecting plate 51, the connecting plate 51 is connected with a fastening bolt 511 through thread fit, and the fastening bolt 511 abuts against the outer wall of the pile body 1, so that the position of the limiting block 5 in the sliding hole 11 can be adjusted by loosening the fastening bolt 511, and the maximum distance between the limiting block 5 and the convex column 42 is changed;

further, the bottom of the pile body 1 is also fixed with a base 6, and the base 6 is provided with a bolt hole 61 for fixing the whole device on the ground.

Example 2

Referring to fig. 4, in this embodiment, a guide wheel 7 is further preferably arranged at a position higher than the reel 2 inside the pile body 1 based on embodiment 1, the guide wheel 7 is mounted on a bracket 71 fixed to the pile body 1, and when in use, the cable 3 is laid on the guide wheel 7, so that friction between the cable 3 and the reel 2 in the winding and unwinding processes can be avoided, and the cable can be effectively protected.

Example 3

Referring to fig. 5, this embodiment is further optimized based on embodiment 2, mainly to improve the convenience of winding and unwinding the cable 3, specifically, a reset spring 212 is sleeved on the periphery of the first rotating shaft 21, one end of the reset spring 212 is fixed to the first rotating shaft 21, and the other end of the reset spring 212 is fixed to a fixing block 12 connected to the pile body 1, so that when the cable 3 is pulled outward, the reel 2 drives the first rotating shaft 21 to rotate, the reset spring 212 starts to accumulate force, and after the cable 3 is loosened, the reel 2 is reset under the effect of the reset spring 212 restoring force, so that the cable 3 is retracted into the pile body 1;

correspondingly, still be provided with cushion 13 on the outer wall of pile body 1 corresponding charging gun 31's the position, avoid charging gun 31 to take place hard striking with pile body 1 when the rolling of cable 3, form effective protection.

The working principle of the invention is as follows:

when the cable unwinding device is used, a user holds the charging gun 31 by hand to pull out the cable 3 from the pile body 1, the reel 3 rotates in the process to drive the driving gear 211 to rotate and further drive the driving gear 4 to rotate, the convex column 42 slides in the sliding hole 11 in the rotating process of the driving gear 4, and before the cable 3 is pulled to the limit length capable of extending, the convex column 42 can be in contact with the convex column 42 to limit the driven gear 4 to continue rotating, so that the cable 3 is prevented from continuing unwinding, and looseness between the cable 3 and a power interface due to pulling is avoided.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A charging pile with a length limiting function comprises a pile body (1), a winding wheel (2) arranged inside the pile body (1) and a cable (3) wound on the winding wheel (2), wherein the winding wheel (2) is rotatably connected with the pile body (1) through a first rotating shaft (21), one end of the cable (3) is connected with a power supply interface, and the other end of the cable extends out of the pile body (1) and is connected with a charging gun (31);

the driving gear mechanism is characterized in that a driving gear (211) is sleeved on the periphery of a shaft body of the first rotating shaft (21), and a driven gear (4) meshed with the driving gear (211) is arranged above the driving gear (211); the driven gear (4) is rotatably connected inside the pile body (1) through a second rotating shaft (41), and a convex column (42) is eccentrically arranged on the end face of the driven gear (4); the wall of the pile body (1) is provided with a sliding hole (11), the sliding hole (11) is in a incomplete circle shape, the curvature radius of the sliding hole is the same as the rotation radius of the convex column (42), and the convex column (42) is slidably clamped in the sliding hole (11); a limiting block (5) is arranged in the sliding hole (11), and the maximum distance between the limiting block (5) and the convex column (42) is smaller than the maximum unreeling length of the cable (3).

2. Charging pile with length-limiting function according to claim 1, characterized in that the stud (42) is formed integrally with the driven gear (4).

3. The charging pile with the length limiting function according to claim 2, wherein one end of the limiting block (5) extends out of the sliding hole (11) and is fixed with a connecting plate (51), a fastening bolt (511) is connected to the connecting plate (51) in a threaded fit manner, and the fastening bolt (511) abuts against the outer wall of the pile body (1).

4. The charging pile with the length limiting function according to claim 3, wherein a base (6) is further fixed to the bottom of the pile body (1), and a bolt hole (61) is formed in the base (6).

5. The charging pile with length limiting function according to claim 4, characterized in that a guide wheel (7) is arranged in the pile body (1) at a position higher than the reel (2), and the guide wheel (7) is mounted on a bracket (71) fixed on the pile body (1).

6. The charging pile with the length limiting function according to any one of claims 1 to 5, wherein a reset spring (212) is sleeved on the periphery of the first rotating shaft (21), one end of the reset spring (212) is fixed on the first rotating shaft (21), and the other end of the reset spring is fixed on a fixing block (12) connected to the pile body (1).

7. The charging pile with the length limiting function according to claim 6, wherein a soft cushion (13) is further arranged on the outer wall of the pile body (1) at a position corresponding to the charging gun (31).