New energy charging pile wiring harness with safety protection

Abstract

The present invention relates to a new energy charging pile wiring harness with safety protection, comprising a wire body and a control device. The wire body comprises: an outer layer; an inner core comprising a conductive wire and a liquid-fillable inner layer; an interlayer formed between the inner core and the outer layer, the interlayer communicating with the inner layer, and capable of being filled with liquid to prevent the conductive wire from being squeezed; the wire body can be wound around the control device, and the control device can press liquid into the inner layer and the interlayer, and can also extract the liquid from the interlayer. The advantage of the present invention is that by providing a liquid-fillable inner layer and an interlayer within the wire body, and providing a control device, the wire body outside the control device can be filled with liquid when the wire body is pulled out, thereby protecting the core within the wire body.

Description

Technical Field

[0001] The present invention relates to the field of charging pile wiring harnesses, and in particular to a new energy charging pile wiring harness with safety protection. Background Art

[0002] As new energy vehicle manufacturing technology matures, new energy vehicles are gradually entering people's daily lives. In order to better serve new energy vehicles, new energy charging piles are set up in many locations in the city. The charging cables of the charging piles have been scattered outside, which will cause wear and tear on the wires. In order to protect the wires, we need to set up charging pile wiring harnesses. The existing new energy charging pile wiring harnesses have certain disadvantages when in use:

[0003] 1. The current charging pile wiring harnesses are all set long, and the wiring harnesses are often dragged on the ground, which can easily cause the wiring harness surface to wear and crack, posing a safety hazard;

[0004] 2. During use, the wiring harness is easily squeezed by wheels or stepped on by people, causing leakage accidents;

[0005] 3. When not in use, there is no unified storage method for the wire harnesses, and they are scattered outside, which can easily cause problems such as entanglement, curling, and breakage. Summary of the Invention

[0006] Based on this, it is necessary to provide a new energy charging pile wiring harness with safety protection to address the above problems.

[0007] The present invention discloses a new energy charging pile wiring harness with safety protection, which includes: a wire body and a control device. The wire body includes: an outer layer; an inner core, the inner core includes a wire and a liquid-filled inner layer, an interlayer is formed between the inner core and the outer layer, the interlayer is connected to the inner layer, and the interlayer can be filled with liquid to prevent the wire from being squeezed; the wire body can be wound around the control device, and the control device can press liquid into the inner layer and the interlayer, and can extract the liquid in the interlayer.

[0008] In one embodiment, the control device includes a first shell, a second shell, a connecting shaft and a rope drum, the first shell is fixedly connected to the second shell, and the second shell is located at the lower end of the first shell, the connecting shaft is rotatably set in the first shell and a conductor is arranged inside, a wire pulling opening is opened on the second shell, the rope drum is rotatably set in the second shell, the upper end of the connecting shaft can be connected to the cable and the lower end is clamped with the rope drum, the wire body is wound on the rope drum, the conductor can connect the cable and the wire, and when the wire body is pulled out through the wire pulling opening, it can drive the rope drum to rotate, thereby driving the connecting shaft to rotate.

[0009] In one embodiment, a cavity is formed between the first shell and the connecting shaft, and the control device further includes a first baffle and a second baffle, which are slidably arranged on the connecting shaft and divide the cavity into a first cavity, a second cavity and a control cavity, a flow channel is provided on the rope drum, and a first through hole and a second through hole are provided on the inner layer, the control cavity is filled with liquid, the flow channel connects the control cavity and the first through hole to connect the control cavity and the inner layer, and the second through hole connects the inner layer and the interlayer, and the first baffle slides downward to reduce the control cavity, so that the liquid in the control cavity can enter the inner layer through the flow channel and the first through hole in turn, and the liquid in the inner layer can enter the interlayer through the second through hole.

[0010] In one embodiment, the control device also includes a screw, a threaded sleeve, a first gear and a second gear. The first gear is fixedly connected to the connecting shaft and meshes with the second gear. The second gear is rotatably connected to the first housing. A threaded sleeve is fixedly provided on the second gear. The screw is threadedly connected to the threaded sleeve, and the lower end is fixedly connected to the first baffle. The forward rotation of the connecting shaft can drive the first gear to rotate, thereby driving the second gear to rotate. The rotation of the second gear can drive the threaded sleeve to rotate, so that the screw moves downward and drives the first baffle to slide downward, thereby squeezing the control chamber and pressing the liquid into the line body.

[0011] In one embodiment, a spring is further provided in the second cavity, and a clamping joint is provided at the upper end of the rope drum. The clamping joint enters the second cavity and is clamped with the connecting shaft. One end of the spring abuts against the wall of the second cavity, and the other end abuts against the second baffle. The lower end surface of the second baffle abuts against the rope drum. When the liquid flows back from the wire body into the control cavity, it can push the second baffle to overcome the spring and move downward, thereby driving the clamping joint to separate from the connecting shaft and cut off the power.

[0012] In one embodiment, a bottom cover is provided at the lower end of the second shell, a threaded groove is provided on the inner wall of the lower end of the second shell, a protrusion is provided on the side of the bottom cover, and the protrusion is slidably provided in the threaded groove, a pawl is provided inside the bottom cover, and a ratchet cooperating with the pawl is provided inside the bottom of the rope drum, so that the rope drum can be driven to rotate when the wire is pulled out. At this time, the bottom cover remains stationary due to the reverse braking action of the ratchet and the pawl. When the bottom cover contacts the ground, under the action of gravity, the protrusion rotates in the threaded groove, driving the rope drum to continue rotating and the pawl drives the ratchet to rotate, so that a section of the wire can be automatically pulled out.

[0013] In one embodiment, the control device also includes a motor and a third gear, the motor is connected to the third gear, the third gear is engaged with the first gear, the motor can drive the third gear to rotate, the rotation of the third gear drives the first gear to rotate in the opposite direction, the reverse rotation of the first gear drives the threaded sleeve to rotate in the opposite direction, thereby driving the screw to move upward, and then driving the first baffle to move upward, the control chamber is enlarged so that the liquid in the interlayer is extracted, and at the same time, the reverse rotation of the first gear drives the connecting shaft to rotate in the opposite direction, and then drives the rope drum to rotate in the opposite direction to reel in the line.

[0014] In one embodiment, a slider is further provided on the first shell.

[0015] In one embodiment, a plurality of second through holes are evenly arranged in parallel on the inner layer along the extension direction of the inner layer.

[0016] The advantages of the present invention are:

[0017] 1. By providing a liquid-filled inner layer and interlayer in the filament and providing a control device, the filament outside the control device is filled with liquid when the filament is pulled out, thereby protecting the core of the filament;

[0018] 2. A control chamber and a sliding baffle are provided within the control device. Driven by gears and screws, the rotation of the rope drum during the wire pulling process is converted into movement of the screw, which drives the baffle downward, changing the size of the control chamber. This forces the liquid in the chamber into the pulled wire to protect the inner core.

[0019] 3. By arranging a second baffle and a spring in the control chamber, and with the lower end of the second baffle abutting against the rope drum, when the pulled-out wire is squeezed, the backflow of liquid can drive the second baffle to move and drive the rope drum downward, so that the clamping joint on the rope drum is separated from the connecting shaft and the power is cut off, making it safer to use;

[0020] 4. By setting a motor in the control device, after the filament is pulled out, the motor drives the gear to rotate in the opposite direction, driving the screw to rise, so that the volume of the control chamber increases, the liquid in the filament is drawn back, and at the same time, the gear drives the rope drum to rotate in the opposite direction, and the filament is retracted into the control device;

[0021] 5. By setting a protrusion on the bottom cover and cooperating with the threaded groove on the shell, and setting a pawl and ratchet structure, when the bottom cover touches the ground, the rope drum can continue to rotate, automatically pulling out a section of the wire body, so that the wire body can fall to the ground reasonably. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a line stereogram of the present invention;

[0023] Figure 2A perspective view of the control device of the present invention;

[0024] Figure 3 This is an exploded view of the control device of the present invention;

[0025] Figure 4 A cross-sectional view of the control device of the present invention;

[0026] Figure 5 A cross-sectional view of the control device of the present invention in a second working state;

[0027] Figure 6 A cross-sectional view of the control device of the present invention in a third working state;

[0028] Figure 7 For the present invention Figure 6 Cross-sectional view in the AA direction;

[0029] Figure 8 For the present invention Figure 6 Cross-sectional view in the middle BB direction;

[0030] Figure 9 It is a three-dimensional diagram of the bottom cover of the control device of the present invention.

[0031] In the figure, the wire body 1, the conductor 11, the inner layer 12, the second through hole 122, the interlayer 13, the outer layer 14, the screw 22, the threaded sleeve 23, the first gear 241, the second gear 242, the third gear 243, the connecting shaft 24, the control chamber 25, the first cavity 26, the second cavity 27, the spring 28, the first baffle 291, the second baffle 292, the first shell 2, the slider 21, the second shell 3, the wire pulling port 31, the threaded groove 33, the rope drum 32, the ratchet 321, the clamping joint 322, the flow channel 324, the bottom cover 4, the pawl 41, and the protrusion 42. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component. When a component is considered to be "fixed to" another component, it may be directly fixed to the other component or there may be a central component.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0035] like Figures 1 to 9 As shown, the present invention discloses a new energy charging pile wiring harness with safety protection, the new energy charging pile wiring harness with safety protection includes: a wire body 1 and a control device, such as Figure 1 As shown, the wire body 1 includes: an outer layer 14; an inner core, the inner core includes a conductor 11 and a liquid-filled inner layer 12, an interlayer 13 is formed between the inner core and the outer layer 14, the interlayer 13 is connected to the inner layer 12, and the interlayer 13 can be filled with liquid to prevent the conductor 11 from being squeezed; the wire body 1 can be wound around the control device, and the control device can press the liquid into the inner layer 12 and the interlayer 13, and can extract the liquid in the interlayer 13.

[0036] It can be understood that by filling the wire body 1 with liquid, the wire 11 can be effectively protected and prevented from being damaged by compression.

[0037] Preferably, the control device includes a first shell 2, a second shell 3, a connecting shaft 24 and a rope drum 32. The first shell 2 is fixedly connected to the second shell 3, and the second shell 3 is located at the lower end of the first shell 2. The connecting shaft 24 is rotatably set in the first shell 2 and a conductor is arranged inside. A wire pulling opening 31 is opened on the second shell 3, and the rope drum 32 is rotatably set in the second shell 3. The upper end of the connecting shaft 24 can be connected to the cable and the lower end is clamped with the rope drum 32. The wire body 1 is wound on the rope drum 32, and the conductor can connect the cable and the wire 11. When the wire body 1 is pulled out through the wire pulling opening 31, the rope drum 32 can be driven to rotate, thereby driving the connecting shaft 24 to rotate.

[0038] It can be understood that a threaded groove is provided on the rope drum 32, the wire body 1 can be stuck into the threaded groove, and the second shell 3 fits with the wall of the rope drum 32. When the wire body 1 is wound in the rope drum 32, the interlayer 13 is squeezed and fits tightly with the outer layer 14.

[0039] Preferably, a cavity is formed between the first shell 2 and the connecting shaft 24, and the control device also includes a first baffle 291 and a second baffle 292, which are slidably arranged on the connecting shaft 24 and divide the cavity into a first cavity 26, a second cavity 27 and a control cavity 25, a flow channel 324 is provided on the rope drum 32, and a first through hole and a second through hole 122 are provided on the inner layer 12, and the control cavity 25 is filled with liquid, the flow channel 324 connects the control cavity 25 and the first through hole so as to connect the control cavity 25 and the inner layer 12, and the second through hole 122 connects the inner layer 12 and the interlayer 13, and the first baffle 291 slides downward to reduce the control cavity 25, so that the liquid in the control cavity 25 can enter the inner layer 12 through the flow channel 324 and the first through hole in turn, and the liquid in the inner layer 12 can enter the interlayer 13 through the second through hole 122.

[0040] Preferably, the control device also includes a screw 22, a threaded sleeve 23, a first gear 241 and a second gear 242. The first gear 241 is fixedly connected to the connecting shaft 24 and meshes with the second gear 242. The second gear 242 is rotatably connected to the first shell 2. The second gear 242 is fixedly provided with a threaded sleeve 23. The screw 22 is threadedly connected to the threaded sleeve 23, and the lower end is fixedly connected to the first baffle 291. The forward rotation of the connecting shaft 24 can drive the first gear 241 to rotate, thereby driving the second gear 242 to rotate. The rotation of the second gear 242 can drive the threaded sleeve 23 to rotate, so that the screw 22 moves downward, driving the first baffle 291 to slide downward, thereby squeezing the control chamber 25 and pressing the liquid into the line body 1.

[0041] It is understandable that by pulling out the wire body 1 , the rope drum 32 can be driven to rotate, thereby driving the connecting shaft 24 to rotate, and then driving the first baffle 291 to slide downward, pressing the liquid into the wire body 1 .

[0042] It is worth mentioning that, due to the squeezing effect of the rope drum 32 on the interlayer 13, the pressed liquid can just be completely filled into the pulled wire body 1, playing a protective role.

[0043] Preferably, a spring 28 is further provided in the second cavity 27, and a clamping joint 322 is provided at the upper end of the rope drum 32. The clamping joint 322 enters the second cavity 27 and is clamped with the connecting shaft 24. One end of the spring 28 abuts against the second cavity wall, and the other end abuts against the second baffle 292. The lower end surface of the second baffle 292 abuts against the rope drum 32. When the liquid flows back from the line body 1 into the control cavity 25, it can push the second baffle 292 to overcome the spring 28 and move downward, thereby driving the clamping joint 322 to separate from the connecting shaft 24 and cut off the power.

[0044] It is understandable that when the wire body 1 pulled out of the rope drum 32 is accidentally squeezed, the filled liquid will flow back. Similarly, due to the squeezing effect of the rope drum 32 on the interlayer 13, the refluxed liquid will reversely enter the control chamber 25, thereby pushing the second baffle 292 to move downward, driving the card connector 322 to separate from the connecting shaft 24 and cut off the power.

[0045] It is worth mentioning that when the squeezing disappears, the second baffle 292 is reset under the action of the spring 28, pushing the liquid in the control chamber 25 back into the line body 1, and at the same time the card connector 322 is reconnected to the connecting shaft 24 to restore power supply.

[0046] Preferably, Figure 7 and Figure 9 As shown, a bottom cover 4 is provided at the lower end of the second shell 3, and a threaded groove 33 is provided on the inner wall of the lower end of the second shell 3. A protrusion 42 is provided on the side of the bottom cover 4, and the protrusion 42 is slidably set in the threaded groove 33. A pawl 41 is provided inside the bottom cover 4, and a ratchet 321 cooperating with the pawl 41 is provided inside the bottom of the rope drum 32. When the wire body 1 is pulled out, the rope drum 32 can be driven to rotate. At this time, due to the reverse braking action of the ratchet 321 and the pawl 41, the bottom cover 4 remains stationary. When the bottom cover 4 contacts the ground, under the action of gravity, the protrusion 42 rotates in the threaded groove 33, driving the rope drum 32 to continue to rotate and the pawl 41 drives the ratchet 321 to rotate, which can automatically pull out a section of the wire body 1.

[0047] It can be understood that the control device is suspended on the charging pile. When the pulled out wire 1 is connected to the device that needs to be charged, the control device is lowered to the ground. At this time, the bottom cover 4 contacts the ground and automatically pulls out a section of wire 1 under the action of gravity, so that the wire 1 can fall to the ground.

[0048] Preferably, the control device also includes a motor and a third gear 243, the motor is connected to the third gear 243, the third gear 243 is engaged with the first gear 241, the motor can drive the third gear 243 to rotate, the rotation of the third gear 243 drives the first gear 241 to rotate in the opposite direction, the reverse rotation of the first gear 241 drives the threaded sleeve 23 to rotate in the opposite direction, thereby driving the screw 22 to move upward, and then driving the first baffle 291 to move upward, the control chamber 25 is enlarged so that the liquid in the interlayer 13 is extracted, and at the same time, the reverse rotation of the first gear 241 drives the connecting shaft 24 to rotate in the opposite direction, thereby driving the rope drum 32 to rotate in the opposite direction for winding.

[0049] Preferably, a slider 21 is further provided on the first housing 2 .

[0050] It is understandable that a straight groove is further provided on the charging pile, and the slider 21 can slide along the straight groove. When the control device of the charging pile is released, the control device can slide down to the ground along the straight groove.

[0051] Preferably, a plurality of second through holes 122 are evenly arranged in parallel on the inner layer 12 along the extending direction of the inner layer 12 .

[0052] The working mode of the present invention is as follows: Figure 1 and Figure 2 As shown, the present invention is hung on a new energy charging pile, the cable is connected to the line body 1 through the connecting shaft 24, the slider 21 on the first shell 2 enters the straight groove, all the line bodies 1 are accommodated in the second shell 3, and the liquid in the control chamber 25 enters the inner layer 12. Due to the squeezing of the groove on the rope drum 32, the interlayer 13 and the outer layer 14 are tightly fitted, and there is almost no liquid filling inside the interlayer 13.

[0053] When the present invention is needed to charge the device, a section of wire 1 is pulled out from the wire pulling port 31. Since the rope drum 32 can be driven to rotate when the wire 1 is pulled out, the connecting shaft 24 is driven to rotate in the forward direction. The forward rotation of the connecting shaft 24 drives the first gear 241 to rotate, thereby driving the second gear 242 and the threaded sleeve 23 to rotate in the forward direction, so that the screw 22 moves downward, driving the first baffle 291 to slide downward, thereby squeezing the control chamber 25 and pressing the liquid into the pulled wire 1 to protect the wire 1. At this time, the bottom cover 4 remains stationary due to the reverse braking action of the ratchet 321 and the pawl 41.

[0054] When the pulled-out wire 1 is just connected to the device, the charging pile is controlled to release the control device. At this time, the slider 21 drives the control device to slide down the straight groove to the ground, and the bottom cover 4 contacts the ground. Under the action of gravity, the protrusion 42 rotates in the threaded groove 33, driving the rope drum 32 to continue to rotate and the pawl 41 drives the ratchet 321 to rotate, which is enough to automatically pull out a section of the wire 1 so that the wire 1 falls to the ground.

[0055] When the pulled-out wire body 1 is severely squeezed, the liquid filled in the interlayer 13 flows back into the control chamber 25, pushing the second baffle 292 to move downward, driving the card connector 322 to separate from the connecting shaft 24 and cut off the power. When the squeezing disappears, the second baffle 292 is reset under the action of the spring 28, pushing the liquid in the control chamber 25 to re-enter the wire body 1, and at the same time the card connector 322 is reconnected to the connecting shaft 24 to restore power.

[0056] When the device is charged and disconnected, the motor is started to drive the third gear 243 to rotate. The rotation of the third gear 243 drives the first gear 241 to rotate in the opposite direction, thereby driving the screw 22 to move upward, and then driving the first baffle 291 to move upward. The control chamber 25 is enlarged so that the liquid in the interlayer 13 is extracted through the inner layer 12. At the same time, the reverse rotation of the first gear 241 drives the connecting shaft 24 to rotate in the opposite direction, and then drives the rope drum 32 to rotate in the opposite direction, and the line body 1 is re-stored into the second shell 3.

[0057] It should be noted that the present invention is installed on a charging pile, and a first chute and a second chute are provided on the charging pile in the vertical direction, respectively cooperating with the two sliders on the present invention, so that the control device can slide in the vertical direction. The upper end of the first shell 2 is connected to the winding mechanism via a cable. When the wire body is pulled out, the winding mechanism lowers the present invention to the ground and contacts the ground. The winding mechanism consists of a motor and a reel, and is a conventional mechanism.

[0058] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A new energy charging pile wiring harness with safety protection, characterized in that: The new energy charging pile wiring harness with safety protection includes a wire body and a control device, and the wire body includes: outer layer; An inner core, the inner core comprising a conductive wire and a liquid-fillable inner layer, a sandwich formed between the inner core and the outer layer, the sandwich communicating with the inner layer, and capable of being filled with liquid to prevent the conductive wire from being squeezed; The wire can be wound around the control device, and the control device can press the liquid into the inner layer and the interlayer, and can extract the liquid in the interlayer. The control device includes a first shell, a second shell, a connecting shaft and a rope drum, the first shell is fixedly connected to the second shell, and the second shell is located at the lower end of the first shell, the connecting shaft is rotatably arranged in the first shell and a conductor is arranged inside, a wire pulling opening is opened on the second shell, and the rope drum is rotatably arranged in the second shell, the upper end of the connecting shaft can be connected to the cable and the lower end is clamped with the rope drum, the wire body is wound on the rope drum, the conductor can connect the cable and the wire, and when the wire body is pulled out through the wire pulling opening, the rope drum can be driven to rotate, thereby driving the connecting shaft to rotate. A cavity is formed between the first shell and the connecting shaft, and the control device further includes a first baffle and a second baffle, the first baffle and the second baffle are slidably arranged on the connecting shaft and divide the cavity into a first cavity, a second cavity and a control cavity, a flow channel is provided on the rope drum, a first through hole and a second through hole are provided on the inner layer, the control cavity is filled with liquid, the flow channel connects the control cavity and the first through hole so as to connect the control cavity and the inner layer, the second through hole connects the inner layer and the interlayer, the first baffle slides downward to reduce the control cavity, so that the liquid in the control cavity can enter the inner layer through the flow channel and the first through hole in turn, and the liquid in the inner layer can enter the interlayer through the second through hole, The control device also includes a screw, a threaded sleeve, a first gear and a second gear. The first gear is fixedly connected to the connecting shaft and meshes with the second gear. The second gear is rotatably connected to the first housing. The second gear is fixedly provided with a threaded sleeve. The screw is threadedly connected to the threaded sleeve, and the lower end is fixedly connected to the first baffle. The positive rotation of the connecting shaft can drive the first gear to rotate, thereby driving the second gear to rotate. The rotation of the second gear can drive the threaded sleeve to rotate, so that the screw moves downward and drives the first baffle to slide downward, thereby squeezing the control chamber and pressing the liquid into the line body. A spring is further provided in the second cavity, and a clamping joint is provided at the upper end of the rope drum. The clamping joint enters the second cavity and is clamped with the connecting shaft. One end of the spring abuts against the wall of the second cavity, and the other end abuts against the second baffle. The lower end surface of the second baffle abuts against the rope drum. When the liquid flows back from the line into the control cavity, the second baffle can be pushed to overcome the spring and move downward, thereby driving the clamping joint to separate from the connecting shaft and cut off the power. The control device also includes a motor and a third gear. The motor is connected to the third gear, and the third gear is engaged with the first gear. The motor can drive the third gear to rotate. The rotation of the third gear drives the first gear to rotate in the opposite direction. The reverse rotation of the first gear drives the threaded sleeve to rotate in the opposite direction, thereby driving the screw to move upward, and then driving the first baffle to move upward. The control chamber is enlarged so that the liquid in the interlayer is extracted. At the same time, the reverse rotation of the first gear drives the connecting shaft to rotate in the opposite direction, and then drives the rope drum to rotate in the opposite direction to reel in the line.

2. The new energy charging pile wiring harness with safety protection according to claim 1 is characterized in that: A bottom cover is provided at the lower end of the second shell, a threaded groove is provided on the inner wall of the lower end of the second shell, a protrusion is provided on the side of the bottom cover, the protrusion is slidably provided in the threaded groove, a pawl is provided inside the bottom cover, and a ratchet cooperating with the pawl is provided inside the bottom of the rope drum. When the wire body is pulled out, the rope drum can be driven to rotate. At this time, the bottom cover remains stationary due to the reverse braking action of the ratchet and the pawl. When the bottom cover contacts the ground, under the action of gravity, the protrusion rotates in the threaded groove, driving the rope drum to continue rotating and the pawl drives the ratchet to rotate, which can automatically pull out a section of the wire body.

3. The new energy charging pile wiring harness with safety protection according to claim 1 is characterized in that: The first shell is also provided with a slider.

4. The new energy charging pile wiring harness with safety protection according to claim 1 is characterized in that: A plurality of second through holes are evenly arranged in parallel on the inner layer along the extending direction of the inner layer.

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