New energy charging pile with cable end protection structure

Abstract

The invention relates to the technical field of cable protection, in particular to a new energy charging pile with a cable end protection structure, which comprises a charging pile and a cable mounted in the charging pile, a ventilation slot is mounted at the lower end of the charging pile, one end of the cable penetrates through the interior of the ventilation slot to be connected with the charging pile, and the other end of the cable is connected with the cable end protection structure. According to the invention, when a cable is stretched to a critical length, a plurality of groups of friction blocks can automatically form gradual clamping on the outer wall of the cable, so that the cable is self-adaptively protected during use, and the cable can be prevented from being damaged by the friction blocks, so that the cable is prevented from being damaged, and the service life of the cable is prolonged. And meanwhile, the friction force of the friction block is gradually increased along with the over-stretching length of the cable, so that the risk that the cable rebounds or a user is injured due to pulling caused by instant rigid locking is prevented, and the cable is prevented from being continuously stretched.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cable protection, in particular to a new energy charging pile with cable end protection structure. BACKGROUND

[0002] Behind the vigorous development of new energy vehicles, charging pile cables are facing many severe challenges, which not only affect the normal operation of the charging pile, but also relate to the safety and experience of new energy vehicle users. When the existing charging pile is used by the user to stretch the cable to charge the vehicle, it often causes the cable to be stretched instantaneously due to the long distance, which not only causes friction damage between the outer wall of the cable and the charging pile, but also causes the end of the cable to be damaged due to the stretching force, thereby affecting the subsequent use of the cable. SUMMARY

[0003] When the cable is stretched to the critical length, the multiple friction blocks automatically form a gradual clamping on the outer wall of the cable, so that the cable is self-adapted and protected during use, preventing the cable from being damaged due to excessive stretching, such as end joint disbonding or insulation layer tearing, and the friction force of the friction blocks gradually increases with the length of the cable being stretched too much, preventing the cable from rebounding or the user from being injured due to instantaneous rigid locking, and preventing the cable from continuing to stretch.

[0004] To achieve the above purpose, the present application provides the following technical scheme: a new energy charging pile with a cable end protection structure, comprising a charging pile and a cable installed inside the charging pile, a ventilation slot is installed at the lower end of the charging pile, one end of the cable penetrates through the inside of the ventilation slot and is connected with the charging pile, two groups of rotating shafts are rotatably arranged on both sides of the ventilation slot, a fan blade is fixedly connected to one end of each of the two groups of rotating shafts, a flow guide pipe is arranged on the outer side of each of the two groups of rotating shafts, a plurality of spiral fan blades driven by the rotating shaft are rotatably arranged in the inside of each of the two groups of flow guide pipes, a gas bag is communicated with one end of each of the flow guide pipes, and a plurality of air injection ports are installed at one end of each of the gas bags. A fixing buckle is fixedly connected to the outer side of the cable, a plurality of friction blocks are fixedly connected to one end of the fixing buckle, a guide pipe is arranged on the outer side of each of the plurality of friction blocks, and each of the plurality of friction blocks slides in the inside of the guide pipe through the fixing buckle. A piston rod is connected to both sides of the fixing buckle, a piston pipe is slidably connected to one end of the piston rod, a gas bag is communicated with one end of the piston pipe, and the other end of the gas bag is communicated with the inside of the guide pipe.

[0005] Preferably, a rotor is installed in the inside of the ventilation slot, and the rotor is connected to both groups of rotating shafts at both ends.

[0006] Preferably, the guide pipe is fixedly connected to the inner wall of the ventilation slot, and the multiple sets of spiral fan blades are fixedly connected to the rotating shaft. One end of the guide pipe is connected to a connecting pipe A, and the other end of the connecting pipe A is connected to the airbag.

[0007] Preferably, the airbag is located outside the cable and is fixedly connected to the ventilation slot, with the air nozzle located at one end of the airbag near the guide tube.

[0008] Preferably, the inside of the guide tube is inclined, and one end of the fixing buckle is fixedly connected to multiple sets of connecting rods A, the other end of each set of connecting rods A is connected to a friction block, and one end of each set of friction blocks is fixedly connected to a protrusion.

[0009] Preferably, a connecting rod B is fixedly connected to both sides of the fixing buckle, and the other end of the connecting rod B extends through the ventilation groove and into the ventilation groove to connect with the piston rod.

[0010] Preferably, one end of the piston tube is connected to a connecting pipe B, and the other end of the connecting pipe B is connected to a storage tank, wherein the storage tank is fixedly connected to the inner wall of the ventilation slot.

[0011] Preferably, one end of the storage tank is connected to a connecting pipe C, and the other end of the connecting pipe C extends through the ventilation slot and the guide pipe into the interior of the guide pipe.

[0012] Compared with the prior art, the beneficial effects of the present invention are: When the cable is stretched to a critical length, multiple sets of friction blocks automatically form a progressive clamping on the outer wall of the cable, enabling the cable to self-protect during use and preventing damage such as unsoldering of the end joints or tearing of the insulation layer caused by excessive stretching. At the same time, the friction force of the friction blocks gradually increases with the length of the cable that has been stretched excessively, which not only prevents the risk of cable rebound or injury to the user caused by instantaneous rigid locking, but also forms sufficient locking force when the protection threshold is reached to prevent the cable from stretching further.

[0013] This invention uses multiple jet nozzles to spray gas into the guide tube, forming a targeted airflow purging area. This cleans the contact surface between the friction block and the cable in real time, maintaining the cleanliness of the friction contact surface and ensuring that the friction force when the friction block contracts is always within the design threshold range. At the same time, the airflow ejected from the jet nozzles can not only remove dust but also carry away moisture inside the guide tube, reducing the risk of corrosion in humid environments, reducing the wear rate of the friction block, and extending the service life of the friction block and the guide tube.

[0014] This invention utilizes a waterproofing agent to form a protective layer on the cable surface, creating a water-repellent barrier that blocks moisture from penetrating into the cable, preventing insulation degradation and conductor corrosion. Simultaneously, this protective layer acts as a buffer, effectively reducing the wear rate between the cable and friction blocks, preventing scratches or damage to the insulation layer due to frequent friction, thus reducing the frequency of cable failure due to wear and tear, and lowering the replacement costs of charging pile components. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is one of the internal structural diagrams of the ventilation slot of the present invention; Figure 3 This is the second internal structural diagram of the ventilation slot of the present invention; Figure 4 This is the third internal structural diagram of the ventilation slot of the present invention; Figure 5 This is one of the partial structural cross-sectional views of the present invention; Figure 6 This is a second partial structural cross-sectional view of the present invention; Figure 7 This is a partial structural plan view of the present invention.

[0016] In the diagram: 1. Charging pile; 2. Cable; 3. Ventilation slot; 4. Rotor; 5. Rotating shaft; 6. Fan blade; 7. Guide pipe; 8. Spiral fan blade; 9. Connecting pipe A; 10. Airbag; 11. Air nozzle; 12. Guide pipe; 13. Fixing buckle; 14. Connecting rod A; 15. Friction block; 16. Protrusion; 17. Connecting rod B; 18. Piston rod; 19. Piston tube; 20. Connecting pipe B; 21. Storage tank; 22. Connecting pipe C. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0018] according to Figures 1 to 7As shown, the present invention provides a new energy charging pile with a cable end protection structure, including a charging pile 1 and a cable 2 installed inside the charging pile 1. A ventilation groove 3 is installed at the lower end of the charging pile 1. One end of the cable 2 passes through the ventilation groove 3 and is connected to the charging pile 1. Two sets of rotating shafts 5 are rotatable on both sides of the ventilation groove 3. A fan blade 6 is fixedly connected to one end of each set of rotating shafts 5. A guide pipe 7 is provided on the outside of each set of rotating shafts 5. Multiple sets of spiral fan blades 8 driven by the rotating shafts 5 rotate inside each set of guide pipes 7. One end of the guide pipe 7 is connected to an airbag 10. Multiple sets of air nozzles 11 are installed at one end of the airbag 10. A fixing buckle 13 is fixedly connected to the outside of the cable 2. Multiple sets of friction blocks 15 are fixedly connected to one end of the fixing buckle 13. A guide tube 12 is provided on the outside of the multiple sets of friction blocks 15. The multiple sets of friction blocks 15 slide inside the guide tube 12 through the fixing buckle 13. Piston rods 18 are connected to both sides of the fixing buckle 13. One end of the piston rod 18 is slidably connected to a piston tube 19. One end of the piston tube 19 is connected to an airbag 10. The other end of the airbag 10 is connected to the inside of the guide tube 12.

[0019] In an optional embodiment, a rotor 4 is installed inside the ventilation slot 3, and both ends of the rotor 4 are connected to two sets of rotating shafts 5. After the charging pile 1 is installed, its rotor 4 is in a constant rotation state. When the rotor 4 rotates, it will synchronously drive two sets of rotating shafts 5 to rotate. When the two sets of rotating shafts 5 rotate, they will synchronously drive two sets of fan blades 6 to rotate. The two sets of fan blades 6 are one set of forward blades and one set of reverse blades. Thus, when the two sets of fan blades 6 rotate, they will promote the airflow inside the ventilation slot 3 and prevent the growth of mold.

[0020] In an optional embodiment, the guide pipe 7 is fixedly connected to the inner wall of the ventilation slot 3, and multiple sets of spiral fan blades 8 are fixedly connected to the rotating shaft 5. One end of the guide pipe 7 is connected to the connecting pipe A9, and the other end of the connecting pipe A9 is connected to the airbag 10. As described above, when the two sets of rotating shafts 5 rotate, they will synchronously drive the multiple sets of spiral fan blades 8 inside the guide tube 7 to rotate synchronously. When the multiple sets of spiral fan blades 8 rotate, they will draw airflow into the guide tube 7. After the airflow enters the guide tube 7, it will form a vortex through the spiral fan blades 8. After the multiple sets of spiral fan blades 8 draw airflow into the guide tube 7, the airflow will form a relatively fast vortex after passing through the multiple sets of guide tubes 7. After the airflow enters the guide tube 7, it will flow into the connecting pipe A9. After the airflow enters the connecting pipe A9, it will transport the airflow into the airbag 10. After the airflow enters the airbag 10, it will cause the airbag 10 to inflate. After the airbag 10 inflates, it will fill the gap between the cable 2 and the ventilation slot 3, preventing the friction between the cable 2 and the ventilation slot 3 from damaging the surface of the cable 2.

[0021] In an optional embodiment, the airbag 10 is located outside the cable 2 and is fixedly connected to the ventilation slot 3, with the jet nozzle 11 located at one end of the airbag 10 near the guide tube 12. As described above, after the airflow enters the airbag 10, the airflow will be ejected outward through multiple sets of jet nozzles 11 at one end of the airbag 10.

[0022] In an optional embodiment, the inside of the guide tube 12 is inclined, and one end of the fixing buckle 13 is fixedly connected to multiple sets of connecting rods A14. The other end of each set of connecting rods A14 is connected to a friction block 15, and one end of each set of friction blocks 15 is fixedly connected to a protrusion 16. When a user charges cable 2, if the stretched length is too long and the portion of cable 2 inside the ventilation slot 3 is pulled out, cable 2 will simultaneously move the fixing buckle 13. As the fixing buckle 13 moves, it will simultaneously pull multiple sets of friction blocks 15 inside the guide tube 12 via the connecting rod A14. Because the inside of the guide tube 12 is inclined, as the multiple sets of friction blocks 15 move, the protrusion 16 contacts the inside of the guide tube 12. As the friction blocks 15 move, simultaneously causing the protrusion 16 to move, the protrusion 16 will gradually contract due to the inclined surface of the inner wall of the guide tube 12. When the protrusion 16 contracts, it will simultaneously cause the friction blocks 15 to contract. When the friction blocks 15 contract, it will affect the cable 2. The outer wall gradually applies a large frictional force, thereby locking the cable 2 and preventing the user from stretching the cable 2 too long, which would damage the connection end between the cable 2 and the charging pile 1. When the cable 2 is stretched to the critical length, multiple sets of friction blocks 15 will automatically form a progressive clamping on the outer wall of the cable 2, so that the cable 2 can self-protect during use and prevent damage such as unsoldering of the end joint or tearing of the insulation layer caused by excessive stretching of the cable 2. At the same time, the frictional force of the friction blocks 15 gradually increases with the length of the cable 2 that is excessively stretched, which not only prevents the cable 2 from rebounding or the user from being pulled and injured due to instantaneous rigid locking, but also forms sufficient locking force when the protection threshold is reached to prevent the cable 2 from continuing to stretch. As described above, when gas is ejected through multiple sets of nozzles 11, the output ends of the multiple sets of nozzles 11 are directed towards the inside of the guide tube 12. Consequently, the gas ejected from the multiple sets of nozzles 11 acts on the inside of the guide tube 12 and the surface of the cable 2, thereby reducing the adhesion of dust on the friction block 15 and the surface of the cable 2. This prevents problems such as friction failure due to excessive dust. By ejecting gas into the inside of the guide tube 12 through the multiple sets of nozzles 11, a targeted airflow purging area is formed, which cleans the contact surface between the friction block 15 and the cable 2 in real time, maintains the cleanliness of the friction contact surface, and ensures that the friction force when the friction block 15 contracts is always within the design threshold range. At the same time, the airflow ejected from the nozzles 11 can not only remove dust, but also remove moisture from the inside of the guide tube 12, reduce the risk of corrosion in humid environments, reduce the wear rate of the friction block 15, and extend the service life of the friction block 15 and the guide tube 12.

[0023] In an optional embodiment, a connecting rod B17 is fixedly connected to both sides of the fixing buckle 13, and the other end of the connecting rod B17 extends through the ventilation groove 3 and into the ventilation groove 3 to connect with the piston rod 18. As described above, when the fixed buckle 13 moves, it will simultaneously drive the two sets of connecting rods B17 to move. When the two sets of connecting rods B17 move, they will simultaneously pull the two sets of piston rods 18 into the two sets of piston tubes 19.

[0024] In an optional embodiment, one end of the piston tube 19 is connected to a connecting tube B20, and the other end of the connecting tube B20 is connected to a storage tank 21. The storage tank 21 is fixedly connected to the inner wall of the ventilation slot 3. The connecting tube B20 contains a waterproofing agent. After the two sets of piston rods 18 enter the two sets of piston tubes 19, the two sets of piston rods 18 will compress gas into the connecting tube B20. After the gas enters the connecting tube B20, the gas will compress the waterproofing agent inside the connecting tube B20 into the connecting tube C22.

[0025] In an optional embodiment, one end of the storage tank 21 is connected to a connecting pipe C22, and the other end of the connecting pipe C22 extends through the ventilation slot 3 and the guide pipe 12 into the interior of the guide pipe 12. The connecting tube C22 delivers the waterproofing agent into the guide tube 12. As the waterproofing agent flows out through the connecting tube C22, it flows onto the surface of the cable 2. At this time, in conjunction with the gas sprayed from the air jet 11, the air jet 11 quickly dries the waterproofing agent on the surface of the cable 2. After the waterproofing agent dries, a protective layer is formed on the surface of the cable 2, thereby reducing the corrosion of the humid environment and reducing the wear on the surface of the cable 2. Thus, the protective layer formed by the waterproofing agent on the surface of the cable 2 can form a water-repellent barrier, blocking the path of water penetration into the interior of the cable 2, preventing the degradation of insulation performance and conductor corrosion. At the same time, the protective layer formed by the waterproofing agent can also act as a buffer layer, effectively reducing the wear rate between the cable 2 and the friction block 15, preventing the insulation layer from being scratched or damaged due to frequent friction, reducing the frequency of cable 2 being scrapped due to wear, and reducing the replacement cost of consumables for the charging pile 1.

[0026] Working principle: After the charging pile 1 is installed, its rotor 4 is in a constant rotation state. When the rotor 4 rotates, it will synchronously drive two sets of rotating shafts 5 to rotate. When the two sets of rotating shafts 5 rotate, they will synchronously drive two sets of fan blades 6 to rotate. The two sets of fan blades 6 are one set of forward blades and one set of reverse blades. Thus, when the two sets of fan blades 6 rotate, they will promote the airflow inside the ventilation slot 3. When the two sets of rotating shafts 5 rotate, they will synchronously drive the multiple sets of spiral fan blades 8 inside the guide tube 7 to rotate synchronously. When the multiple sets of spiral fan blades 8 rotate, they will draw the airflow into the guide tube 7. After the airflow enters the guide tube 7, it will form a vortex through the spiral fan blades 8. After the multiple sets of spiral fan blades 8 draw the airflow into the guide tube 7, the airflow will form a relatively fast vortex after passing through the multiple sets of guide tubes 7. After the airflow enters the guide tube 7, it will flow into the connecting pipe A9. After the airflow enters the connecting pipe A9, it will transport the airflow into the airbag 10. After the airflow enters the airbag 10, it will cause the airbag 10 to inflate. After the airbag 10 inflates, it will fill the gap between the cable 2 and the ventilation slot 3. After the airflow enters the airbag 10, it will be ejected outward through the multiple sets of jet nozzles 11 at one end of the airbag 10. When the user charges the cable 2, if the cable 2 is stretched too far and the part of the cable 2 inside the ventilation slot 3 is pulled out, the cable 2 will move the fixing buckle 13 in sync. When the fixing buckle 13 moves, it will pull multiple sets of friction blocks 15 to move inside the guide tube 12 in sync through the connecting rod A14. Since the inside of the guide tube 12 is inclined, when the multiple sets of friction blocks 15 move, the protrusion 16 will contact the inside of the guide tube 12. As the friction blocks 15 move, they will move in sync with the protrusion 16. The protrusion 16 will gradually shrink due to the inclined surface of the inner wall of the guide tube 12. When the protrusion 16 shrinks, it will simultaneously cause the friction blocks 15 to shrink. When the friction blocks 15 shrink, they will gradually apply a large friction force to the outer wall of the cable 2, thereby locking the cable 2. When the gas is ejected through multiple sets, the output ends of the multiple sets of jet nozzles 11 are directed toward the inside of the guide tube 12. As a result, the gas ejected from the multiple sets of jet nozzles 11 will act on the inside of the guide tube 12 and the surface of the cable 2, thereby reducing the adhesion of dust on the friction block 15 and the surface of the cable 2. When the fixing buckle 13 moves, it will simultaneously drive the two sets of connecting rods B17 to move. When the two sets of connecting rods B17 move, they will simultaneously pull the two sets of piston rods 18 into the two sets of piston tubes 19. After the two sets of piston rods 18 enter the two sets of piston tubes 19, they will compress gas into the connecting tube B20. After the gas enters the connecting tube B20, it will compress the waterproofing agent inside the connecting tube B20 into the connecting tube C22. The connecting tube C22 will deliver the waterproofing agent into the guide tube 12. When the waterproofing agent flows out through the connecting tube C22, it will flow to the surface of the cable 2. At this time, in conjunction with the gas sprayed from the above-mentioned air jet 11, the air jet 11 will quickly dry the waterproofing agent on the surface of the cable 2. After the waterproofing agent dries, a protective layer will be formed on the surface of the cable 2.

[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A new energy charging pile with cable end protection structure, comprising a charging pile (1) and a cable (2) installed in the charging pile (1), characterized in that, The lower end of the charging pile (1) is provided with a ventilation slot (3), one end of the cable (2) penetrates through the inside of the ventilation slot (3) and is connected with the charging pile (1), two groups of rotating shafts (5) are rotatably arranged on the two sides of the ventilation slot (3), one end of each of the two groups of rotating shafts (5) is fixedly connected with a fan blade (6), a flow guide pipe (7) is arranged on the outer side of each of the two groups of rotating shafts (5), a plurality of spiral fan blades (8) driven by the rotating shaft (5) are rotatably arranged in the inside of each of the two groups of flow guide pipes (7), and the flow guide pipe (7) is communicated with an air bag (10) at one end. The outer side of the cable (2) is fixedly connected with a fixed buckle (13), one end of the fixed buckle (13) is fixedly connected with a plurality of friction blocks (15), the outer side of each of the plurality of friction blocks (15) is provided with a guide pipe (12), and each of the plurality of friction blocks (15) slides in the inside of the guide pipe (12) through the fixed buckle (13). The two sides of the fixed buckle (13) are connected with a piston rod (18), one end of the piston rod (18) is slidably connected with a piston pipe (19), the piston pipe (19) is communicated with the air bag (10) at one end, and the other end of the air bag (10) is communicated with the inside of the guide pipe (12).

2. The new energy charging pile with cable end protection structure according to claim 1, characterized in that, The inside of the ventilation slot (3) is provided with a rotor (4), and the two ends of the rotor (4) are connected with the two groups of rotating shafts (5).

3. The new energy charging pile with cable end protection structure according to claim 1, characterized in that, The flow guide pipe (7) is fixedly connected with the inner wall of the ventilation slot (3), each of the plurality of spiral fan blades (8) is fixedly connected with the rotating shaft (5), and one end of the flow guide pipe (7) is communicated with a connecting pipe A (9), and the other end of the connecting pipe A (9) is communicated with the air bag (10).

4. The new energy charging pile with cable end protection structure according to claim 1, characterized in that, The air bag (10) is located on the outer side of the cable (2), and the air bag (10) is fixedly connected with the ventilation slot (3), and the air jet (11) is located at one end of the air bag (10) close to the guide pipe (12).

5. The new energy charging pile with cable end protection structure according to claim 1, characterized in that, The inside of the guide pipe (12) is a slope, one end of the fixed buckle (13) is fixedly connected with a plurality of connecting rods A (14), the other end of each of the plurality of connecting rods A (14) is connected with the friction block (15), and one end of each of the plurality of friction blocks (15) is fixedly connected with a protruding block (16).

6. The new energy charging pile with cable end protection structure according to claim 1, characterized in that, The two sides of the fixed buckle (13) are fixedly connected with a connecting rod B (17), and the other end of the connecting rod B (17) penetrates through the ventilation slot (3) and extends into the inside of the ventilation slot (3) and is connected with the piston rod (18).

7. The new energy charging pile with cable end protection structure according to claim 1, characterized in that, One end of the piston pipe (19) is communicated with a connecting pipe B (20), the other end of the connecting pipe B (20) is communicated with a storage tank (21), and the storage tank (21) is fixedly connected with the inner wall of the ventilation slot (3).

8. The new energy charging pile with cable end protection structure according to claim 7, characterized in that, One end of the storage tank (21) is communicated with a connecting pipe C (22), the other end of the connecting pipe C (22) penetrates through the ventilation slot (3) and the guide pipe (12) and extends into the inside of the guide pipe (12).

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