Quick charging safety isolation protection device for electric vehicle charging pile

Abstract

The invention discloses an electric vehicle charging pile rapid charging safety isolation protection device which comprises a supporting base, a charging pile body, a connecting assembly and a charging gun body, the charging pile body is fixedly installed at the upper end of the supporting base, and the connecting assembly is used for connecting the charging pile body and the charging gun body; a U-shaped groove is formed in the upper end of the supporting seat, and an air curtain isolation assembly is installed in the hollow U-shaped groove and used for forming an isolation air curtain on the periphery of the charging pile body when a fire accident happens to the charging pile body. When the charging pile body is on fire, an electromagnetic pulse valve is opened, so that compressed carbon dioxide in a first fire extinguishing agent tank is quickly input into an outer U-shaped pipe and a side pipe through a first connecting pipe, a first telescopic pipe, a branch pipe and the like, and is sprayed out from a first vertical nozzle and a second vertical nozzle; therefore, a carbon dioxide air curtain can be formed on the periphery of the charging pile body to prevent fire from spreading and avoid larger fire accidents.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicle charging piles, and particularly to a fast charging safety isolation and protection device for electric vehicle charging piles. Background Art

[0002] With the strong promotion of the environmental protection concept and the continuous innovation of battery technology, the market share of electric vehicles has been continuously expanding. Correspondingly, the construction of electric vehicle charging piles has also shown a rapid development trend.

[0003] Although the fast charging mode has significantly shortened the charging time of electric vehicles and remarkably optimized the user experience, it has also given rise to a series of safety problems that urgently need to be solved. The strong current during fast charging is likely to cause electrical fires and pose a potential threat to the surrounding environment. This problem is particularly prominent for charging stations. In the charging station site, a large number of charging piles are usually densely distributed, and many cars are parked around waiting to be charged or being charged. Once a charging pile catches fire due to electrical faults, overload, short circuit, etc., if effective fire extinguishing and isolation measures cannot be taken immediately, the fire will quickly spread to the surrounding charging piles and vehicles. This will not only cause a large number of equipment damages and huge economic losses, but also endanger the lives of on-site personnel and lead to catastrophic consequences. In view of this, this application proposes a fast charging safety isolation and protection device for electric vehicle charging piles. Summary of the Invention

[0004] The purpose of the present invention is to solve the disadvantages existing in the prior art, and to propose a fast charging safety isolation and protection device for electric vehicle charging piles.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions: A fast charging safety isolation and protection device for electric vehicle charging piles, including a support base, a charging pile body, a connection component and a charging gun body. The charging pile body is fixedly installed at the upper end of the support base, and the connection component is used to connect the charging pile body and the charging gun body; The upper end of the support base is provided with a U-shaped groove, and an air curtain isolation component is installed in the U-shaped groove. The air curtain isolation component is used to form an isolation air curtain around the charging pile body in case of a fire accident of the charging pile body. The air curtain isolation component includes a hollow U-shaped frame, a first fire extinguishing agent tank, a first connecting pipe, a branch pipe, a first telescopic pipe, an outer U-shaped pipe and a plurality of first vertical nozzles. The hollow U-shaped frame is slidably arranged in the U-shaped groove, the outer U-shaped pipe is fixedly installed inside the hollow U-shaped frame, and a plurality of first vertical nozzles are fixedly connected to the side wall of the outer U-shaped pipe and communicate with the inside of the outer U-shaped pipe. Each of the first vertical nozzles is arranged vertically downward. One end of the first connecting pipe communicates with the first fire extinguishing agent tank, the other end of the first connecting pipe communicates with the first telescopic pipe, and the first telescopic pipe also communicates with the outer U-shaped pipe. An electromagnetic pulse valve is installed in the first connecting pipe. One end of the branch pipe communicates with the first connecting pipe, the other end of the branch pipe is communicated with a side pipe, the side pipe is fixedly installed at the upper end of the support base, and a plurality of second vertical nozzles are fixedly connected and communicated on the side pipe. Each of the second vertical nozzles is arranged vertically upward.

[0006] Preferably, two guide plates are fixedly connected to the side wall of the hollow U-shaped frame, two guide rods are fixedly connected to the inner bottom of the U-shaped groove, and each of the guide rods slidably penetrates through the adjacent guide plate. The two guide rods are fixedly connected together by a limiting plate.

[0007] Preferably, two warning bell covers are fixedly connected to the lower end of the limiting plate, and an impact ball is fixedly connected to the upper end of the hollow U-shaped frame.

[0008] Preferably, an inner U-shaped pipe is also fixedly installed in the hollow U-shaped frame. A plurality of transverse nozzles are fixedly connected to the side wall of the inner U-shaped pipe. The inner U-shaped pipe communicates with a second telescopic pipe. One end of the second telescopic pipe away from the inner U-shaped pipe communicates with a second connecting pipe. One end of the second connecting pipe away from the inner U-shaped pipe communicates with a second fire extinguishing agent tank. An electromagnetic control valve is installed in the second connecting pipe.

[0009] Preferably, receiving grooves are formed on both opposite sides of the support base. The first fire extinguishing agent tank is stored in one of the receiving grooves, and the second fire extinguishing agent tank is stored in the other receiving groove. A baffle is slidably arranged in each of the receiving grooves, and the baffle slidably penetrates through the side wall of the support base.

[0010] Preferably, a plurality of first springs are fixedly connected to the lower end of the hollow U-shaped frame, and the lower end of each first spring is fixedly connected to the inner bottom of the U-shaped groove.

[0011] Preferably, the connection component includes a connection cylinder, a connection head, a connection wire, a first connection plate, and a second connection plate. The connection head is slidably disposed within the connection cylinder. The connection cylinder is connected to the charging pile body, and a plurality of charging jacks are provided within the connection cylinder. A plurality of charging terminals are provided on the side wall of the connection head. The connection wire is fixedly connected to the side wall of the connection head and connected to the charging terminals. The charging terminals are inserted into the charging jacks to transmit the electrical energy of the charging pile body to the charging gun body via the charging jacks, charging terminals, and connection wires.

[0012] Preferably, the first connection plate is fixedly connected to the side wall of the connection head, the second connection plate is fixedly connected to the side wall of the connection cylinder, the upper end of the hollow U-shaped frame is fixedly connected with a limiting rod, and the limiting rod sequentially slides through the first connection plate and the second connection plate from top to bottom.

[0013] Preferably, a second spring is fixedly connected to the inner wall of the connection cylinder, and a top plate is fixedly connected to the end of the second spring away from the connection cylinder.

[0014] The present invention has the following beneficial effects: 1. By providing a hollow U-shaped frame, laying an outer U-shaped pipe and a plurality of first vertical nozzles inside the hollow U-shaped frame, and simultaneously providing a side pipe and a plurality of second vertical nozzles at the upper end of the support base, when the charging pile body catches fire, the electromagnetic pulse valve can be opened, so that the compressed carbon dioxide in the first fire extinguishing agent tank quickly passes through the first connecting pipe, the first telescopic pipe, the branch pipe, etc. and enters the outer U-shaped pipe and the side pipe, and is ejected from each first vertical nozzle and the second vertical nozzle. In this way, a carbon dioxide gas curtain can be formed around the charging pile body to prevent the spread of fire and avoid causing a larger fire accident. 2. By providing an electromagnetic pulse valve, after the charging body catches fire, the electromagnetic pulse valve can be opened and closed at a certain frequency. In this way, the first vertical nozzle and the second vertical nozzle can intermittently eject carbon dioxide gas in a pulsed manner. In this way, under the combined action of the recoil of the gas and the first spring, the hollow U-shaped frame can be continuously lifted and lowered. At the same time, the compressed carbon dioxide in the second fire extinguishing agent tank is ejected from each transverse nozzle, so that the entire charging pile body can be continuously sprayed with carbon dioxide from top to bottom to extinguish the fire in a timely manner and quickly handle the fire situation to avoid a fire. 3. By setting a connection assembly consisting of a connection tube, a connection head, a connection wire, a first connection plate, a second connection plate and other components, in a normal state, the limit rod on the hollow U-shaped frame can be inserted into the first connection plate and the second connection plate, so that the connection head and the connection tube are firmly connected together for normal charging. In the event of a fire, the hollow U-shaped frame is pushed upward by the gas, which can drive the limit rod to separate from the first connection plate and the second connection plate. At this time, the second spring quickly pushes the top plate to move, so that the connection head can be pushed away from the inside of the connection tube to perform mechanical power off, which is safer and more effective when combined with the disconnection of the internal circuit of the charging pile body; 4. By arranging an impact ball on the upper side of the hollow U-shaped frame and arranging a warning bell cover on the lower side of the upper limit plate, the impact ball can be continuously driven to hit the warning bell cover when the hollow U-shaped frame moves up and down, and an alarm can be sounded to notify nearby personnel to cooperate in handling. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the electric vehicle charging pile fast charging safety isolation protection device proposed by the present invention; Figure 2 It is a front structural schematic diagram of the support base and the air curtain isolation assembly on its upper side when it is started; Figure 3 It is a schematic diagram of the back structure of the support seat and the air curtain isolation assembly on its upper side when the support seat and the air curtain isolation assembly on its upper side are started; Figure 4 It is a schematic diagram of the connection structure of the inner U-shaped tube, the outer U-shaped tube, the first telescopic tube, the second telescopic tube, the plurality of first vertical nozzles and the plurality of second horizontal nozzles in the present invention; Figure 5 for Figure 1 A schematic diagram of the structure enlargement at point A; Figure 6 for Figure 1 A schematic diagram of the structure at B in FIG. Figure 7 It is a schematic diagram of the structure when the connection components in the present invention are separated; Figure 8 It is a schematic diagram of the internal structure of the connecting tube in the present invention.

[0016] In the figure: 1 support base, 2 charging pile body, 3 guide rod, 4 limit plate, 5 charging gun body, 6 connecting wire, 7 receiving groove, 8 first fire extinguishing agent tank, 9 baffle plate, 10 U-shaped groove, 11 hollow U-shaped frame, 12 horizontal nozzle, 13 first vertical nozzle, 14 first spring, 15 impact ball, 16 first telescopic tube, 17 guide plate, 18 branch pipe, 19 second vertical nozzle, 20 side pipe, 21 first connecting pipe, 22 second fire extinguishing agent tank, 23 second connecting pipe, 24 second telescopic tube, 25 inner U-shaped pipe, 26 outer U-shaped pipe, 27 connector, 28 first connecting plate, 29 connecting cylinder, 30 top plate, 31 second spring, 32 second connecting plate, 33 charging terminal, 34 charging jack, 35 limit rod, 36 warning bell cover. Specific implementation mode

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0018] Embodiment 1: Refer to Figure 1-3 , a fast charging safety isolation and protection device for an electric vehicle charging pile, including a support base 1, a charging pile body 2, a connection component and a charging gun body 5. It is characterized in that the charging pile body 2 is fixedly installed at the upper end of the support base 1, and the connection component is used to connect the charging pile body 2 and the charging gun body 5; A U-shaped groove 10 is opened at the upper end of the support base 1, and an air curtain isolation component is installed in the U-shaped groove 10. The air curtain isolation component is used to form an isolation air curtain around the charging pile body 2 when a fire accident occurs in the charging pile body 2. The air curtain isolation component includes a hollow U-shaped frame 11, a first fire extinguishing agent tank 8, a first connecting pipe 21, a branch pipe 18, a first telescopic tube 16, an outer U-shaped pipe 26 and a plurality of first vertical nozzles 13. Among them, the hollow U-shaped frame 11 is slidably arranged in the U-shaped groove 10, the outer U-shaped pipe 26 is fixedly installed inside the hollow U-shaped frame 11, and a plurality of first vertical nozzles 13 are fixedly connected to the side wall of the outer U-shaped pipe 26 and communicate with the inside of the outer U-shaped pipe 26. Each first vertical nozzle 13 is arranged vertically downward. One end of the first connecting pipe 21 communicates with the first fire extinguishing agent tank 8, the other end of the first connecting pipe 21 communicates with the first telescopic tube 16, and the first telescopic tube 16 also communicates with the outer U-shaped pipe 26. An electromagnetic pulse valve is installed in the first connecting pipe 21. One end of the branch pipe 18 communicates with the first connecting pipe 21, and the other end of the branch pipe 18 is connected to a side pipe 20. The side pipe 20 is fixedly installed at the upper end of the support base 1, and a plurality of second vertical nozzles 19 are fixedly installed and communicated on the side pipe 20, and each second vertical nozzle 19 is arranged vertically upward.

[0019] Two guide plates 17 are fixedly connected to the side walls of the hollow U-shaped frame 11, and two guide rods 3 are fixedly connected to the inner bottom of the U-shaped groove 10. Each guide rod 3 slidably penetrates through the adjacent guide plate 17, and the two guide rods 3 are fixedly connected together by a limiting plate 4. Specifically, by providing the guide plates 17 and the guide rods 3, the hollow U-shaped frame 11 can be limited, so that the hollow U-shaped frame 11 can stably move vertically up and down along the guide rods 3.

[0020] In this embodiment, when the charging pile body 2 catches fire, the electromagnetic pulse valve can be opened through the relevant controller. At this time, the compressed carbon dioxide in the first fire extinguishing agent tank 8 can be discharged through the first connecting pipe 21 and conveyed to the first telescopic pipe 16, and then conveyed to the outer U-shaped pipe 26 by the first telescopic pipe 16. After the compressed carbon dioxide is conveyed into the outer U-shaped pipe 26, it will be discharged from each first vertical nozzle 13 facing vertically downward. In this way, a vertically upward reaction force can be provided to the hollow U-shaped frame 11, so as to lift the hollow U-shaped frame 11. In addition, the compressed carbon dioxide discharged from the first connecting pipe 21 will also be conveyed to the side pipe 20 above the support base 1 through the branch pipe 18. After the compressed carbon dioxide is conveyed to the side pipe 20, it will also be sprayed out through each second vertical nozzle 19 facing vertically upward. Then, the carbon dioxide gas columns sprayed out from each first vertical nozzle 13 and the second vertical nozzle 19 can form four carbon dioxide gas curtains around the charging pile body 2, which can prevent the fire of the charging pile body 2 from spreading outward and avoid causing a larger fire accident.

[0021] Embodiment Two: Compared with Embodiment One, an inner U-shaped pipe 25 is fixedly installed in the hollow U-shaped frame 11 in this embodiment. A plurality of transverse nozzles 12 are fixedly connected to the side wall of the inner U-shaped pipe 25. Specifically, as Figure 2-4 shown, the transverse nozzles 12 are horizontally arranged and face the circumferential side wall of the charging pile body 2, so that the carbon dioxide gas sprayed out from the transverse nozzles 12 can blow towards and cover the charging pile body 2. In addition, as Figure 4 shown, the three transverse nozzles 12 on the rightmost side of the inner U-shaped pipe 25 are inclined, so that the gas sprayed out from the transverse nozzles 12 at this position can blow towards the side of the charging pile body 2 where the charging gun body 5 is provided.

[0022] The inner U-shaped pipe 25 is communicated with a second telescopic pipe 24. One end of the second telescopic pipe 24 away from the inner U-shaped pipe 25 is communicated with a second connecting pipe 23. One end of the second connecting pipe 23 away from the inner U-shaped pipe 25 is communicated with a second fire extinguishing agent tank 22. An electromagnetic control valve is installed in the second connecting pipe 23. Specifically, by providing the first telescopic pipe 16 and the second telescopic pipe 24, not only can carbon dioxide gas be conveyed, but also it can expand and contract to cooperate with the lifting action of the hollow U-shaped frame 11.

[0023] Receiving grooves 7 are provided on both opposite sides of the support base 1. The first fire extinguishing agent tank 8 is stored in one of the receiving grooves 7, and the second fire extinguishing agent tank 22 is stored in the other receiving groove 7. A baffle 9 is slidably provided in each receiving groove 7, and the baffle 9 slidably penetrates through the side wall of the support base 1. A plurality of first springs 14 are fixedly connected to the lower end of the hollow U-shaped frame 11, and the lower ends of the first springs 14 are fixedly connected to the inner bottom of the U-shaped groove 10. The first springs 14 are in a compressed state in the initial state and can pull the hollow U-shaped frame 11 to be located on the upper surface of the support base 1, which can greatly reduce the occupied space and facilitate the charging operation. The first fire extinguishing agent tank 8 and the second fire extinguishing agent tank 22 are both tanks with compressed carbon dioxide stored inside.

[0024] In this embodiment, the electromagnetic pulse valve in the first embodiment can be intermittently opened and closed in a pulsed form. Then, whenever the electromagnetic pulse valve is opened, the compressed carbon dioxide gas in the first fire extinguishing agent tank 8 can finally be ejected downward from the first vertical nozzle 13. The recoil force generated by the gas discharge can be used to push the hollow U-shaped frame 11 upward. When the electromagnetic pulse valve is closed, the first vertical nozzle 13 stops exhausting gas, and the first spring 14 can pull the hollow U-shaped frame 11 to move downward and reset. As the electromagnetic pulse valve continuously opens and closes intermittently, the hollow U-shaped frame 11 can move up and down reciprocally under the combined action of the first spring 14. At the same time, the electromagnetic control valve in the second connecting pipe 23 is opened, so that the compressed carbon dioxide in the second fire extinguishing agent tank 22 can be transported to the second connecting pipe 23 and then to the inner U-shaped pipe 25 in the hollow U-shaped frame 11 through the second telescopic pipe 24. The compressed carbon dioxide gas input into the inner U-shaped pipe 25 can be discharged from each transverse nozzle 12. As the hollow U-shaped frame 11 moves up and down reciprocally, it will drive the inner U-shaped pipe 25 inside it to move up and down synchronously. In this way, the carbon dioxide gas ejected from each transverse nozzle 12 can be blown towards and cover the entire charging pile body 2, enabling timely fire extinguishing treatment for the charging pile body 2 to prevent fire accidents.

[0025] Embodiment Three: Compared with the first embodiment and the second embodiment, referring to Figure 1 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 , the connection assembly includes a connection cylinder 29, a connection head 27, a connection wire 6, a first connecting plate 28, and a second connecting plate 32. The connection head 27 is slidably arranged in the connection cylinder 39. The connection cylinder 29 is connected to the charging pile body 2, and a plurality of charging jacks 34 are provided in the connection cylinder 29. A plurality of charging terminals 33 are provided on the side wall of the connection head 27. The connection wire 6 is fixedly connected to the side wall of the connection head 27 and is connected to the charging terminals 33. The charging terminals 33 are inserted into the charging jacks 34, and the electric energy of the charging pile body 2 can be transported to the charging gun body 5 through the charging jacks 34, the charging terminals 33, and the connection wire 6.

[0026] The first connecting plate 28 is fixedly connected to the side wall of the connector head 27, and the second connecting plate 32 is fixedly connected to the side wall of the connecting cylinder 29. The upper end of the hollow U-shaped frame 11 is fixedly connected with a limiting rod 35, and the limiting rod 35 sequentially slides through the first connecting plate 28 and the second connecting plate 32 from top to bottom. Specifically, when the limiting rod 35 penetrates through the first connecting plate 28 and the second connecting plate 32, as Figure 5 shown, the first connecting plate 28 and the second connecting plate 32 can be connected together, so that the connector head 27 and the connecting cylinder 29 are tightly connected together.

[0027] A second spring 31 is fixedly connected to the inner wall of the connecting cylinder 29, and one end of the second spring 31 away from the connecting cylinder 29 is fixedly connected with a top plate 30. It should be noted that when the connector head 27 is inserted into the connecting cylinder 29, the connector head 27 can abut against the top plate 30 and force the second spring 31 to be in a compressed state. The lower end of the limiting plate 4 is fixedly connected with two warning bell covers 36, and the upper end of the hollow U-shaped frame 11 is fixedly connected with an impact ball 15.

[0028] In this embodiment, in the initial normal state, as Figure 5 shown, the connector head 27 is inserted into the connecting cylinder 29, and each charging terminal 33 is inserted into the corresponding charging jack 34. The limiting rod 35 sequentially passes through the first connecting plate 28 and the second connecting plate 32 from top to bottom. The first connecting plate 28 and the second connecting plate 32 can be used to firmly connect the connector head 27 and the connecting cylinder 29 together. The electric energy of the charging pile body 2 can be transmitted to the charging terminal 33 through the charging jack 34 in the connecting cylinder 29, and then transmitted to the charging gun body 5 through the charging terminal 33 and the connecting wire 6, and charging can be carried out.

[0029] When the charging pile body 2 catches fire, in addition to disconnecting the internal charging circuit of the charging pile body 2 in the traditional mode, the upward movement of the hollow U-shaped frame 11 as in Embodiment 1 and Embodiment 2 will also occur. When the hollow U-shaped frame 11 moves upward, it can drive the limiting rod 35 to move upward, and the limiting rod 35 will disengage from the first connecting plate 28 and the second connecting plate 32, and the connection between the first connecting plate 28 and the second connecting plate 32 can be released. At this time, the second spring 31 inside the connecting cylinder 29 will quickly stretch and push the top plate 30 to move outward, so as to push the connector head 27 out of the connecting cylinder 29, separate the charging terminal 33 from the charging jack 34, and mechanical power-off can be carried out, which is more safe and effective in combination with the disconnection of the internal circuit of the charging pile body.

[0030] In addition, when the hollow U-shaped frame 11 moves up and down, the impact ball 15 on the upper side drives it to continuously impact the warning bell cover 36 on the lower side of the limiting plate 4, and an alarm sound can be emitted to notify the nearby personnel to cooperate with the treatment.

[0031] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, shall be covered by the protection scope of the present invention.

Claims

1. A safety isolation protection device for rapid charging of an electric vehicle charging pile, comprising a support seat (1), a charging pile body (2), a connecting component and a charging gun body (5), characterized in that: The charging pile body (2) is fixedly mounted on the upper end of the support seat (1), and the connecting assembly is used to connect the charging pile body (2) and the charging gun body (5); The upper end of the support seat (1) is provided with a U-shaped groove (10), and an air curtain isolation component is installed in the U-shaped groove (10). The air curtain isolation component is used to form an isolation air curtain around the charging pile body (2) when a fire accident occurs in the charging pile body (2). The air curtain isolation component comprises a hollow U-shaped frame (11), a first fire extinguishing agent tank (8), a first connecting pipe (21), a branch pipe (18), a first telescopic pipe (16), an outer U-shaped pipe (26) and a plurality of first vertical nozzles (13), wherein the hollow U-shaped frame (11) is slidably arranged in the U-shaped groove (10), the outer U-shaped pipe (26) is fixedly installed in the hollow U-shaped frame (11), and the plurality of first vertical nozzles (13) are fixedly connected to the side wall of the outer U-shaped pipe (26) and The first connecting pipe (21) is connected to the interior of the outer U-shaped pipe (26), each of the first vertical nozzles (13) is arranged vertically downward, one end of the first connecting pipe (21) is connected to the first fire extinguishing agent tank (8), the other end of the first connecting pipe (21) is connected to the first telescopic pipe (16), and the first telescopic pipe (16) is also connected to the outer U-shaped pipe (26), wherein an electromagnetic pulse valve is installed in the first connecting pipe (21), one end of the branch pipe (18) is connected to the first connecting pipe (21), and the other end of the branch pipe (18) is connected to a side pipe (20), the side pipe (20) is fixedly installed on the upper end of the support seat (1), and a plurality of second vertical nozzles (19) are fixed and connected to the side pipe (20), and each of the second vertical nozzles (19) is arranged vertically upward.

2. The electric vehicle charging pile fast charging safety isolation protection device according to claim 1 is characterized in that: Two guide plates (17) are fixedly connected to the side walls of the hollow U-shaped frame (11), two guide rods (3) are fixedly connected to the bottom of the U-shaped groove (10), and each guide rod (3) slides through an adjacent guide plate (17), and the two guide rods (3) are fixedly connected together via a limit plate (4).

3. The electric vehicle charging pile fast charging safety isolation protection device according to claim 2 is characterized in that: Two warning bell covers (36) are fixedly connected to the lower end of the limit plate (4), and an impact ball (15) is fixedly connected to the upper end of the hollow U-shaped frame (11).

4. The electric vehicle charging pile fast charging safety isolation protection device according to claim 1, characterized in that: An inner U-shaped tube (25) is also fixedly installed in the hollow U-shaped frame (11); a plurality of lateral nozzles (12) are fixedly connected to the side wall of the inner U-shaped tube (25); the inner U-shaped tube (25) is connected to a second telescopic tube (24); an end of the second telescopic tube (24) away from the inner U-shaped tube (25) is connected to a second connecting tube (23); an end of the second connecting tube (23) away from the inner U-shaped tube (25) is connected to a second fire extinguishing agent tank (22); and an electromagnetic control valve is installed in the second connecting tube (23).

5. The electric vehicle charging pile fast charging safety isolation protection device according to claim 4 is characterized in that: Receiving grooves (7) are provided on opposite sides of the support seat (1), the first fire extinguishing agent tank (8) is stored in one of the receiving grooves (7), and the second fire extinguishing agent tank (22) is stored in the other receiving groove (7), and a baffle (9) is slidably provided in each of the receiving grooves (7), and the baffle (9) slidably penetrates the side wall of the support seat (1).

6. The electric vehicle charging pile fast charging safety isolation protection device according to claim 1, characterized in that: A plurality of first springs (14) are fixedly connected to the lower end of the hollow U-shaped frame (11), and the lower end of each of the first springs (14) is fixedly connected to the inner bottom of the U-shaped groove (10).

7. The electric vehicle charging pile fast charging safety isolation protection device according to claim 1, characterized in that: The connection assembly comprises a connection cylinder (29), a connection head (27), a connection wire (6), a first connection plate (28), and a second connection plate (32); the connection head (27) is slidably arranged in the connection cylinder (39); the connection cylinder (29) is connected to the charging pile body (2); a plurality of charging sockets (34) are arranged in the connection cylinder (29); a plurality of charging terminals (33) are arranged on the side wall of the connection head (27); the connection wire (6) is fixedly connected to the side wall of the connection head (27) and connected to the charging terminal (33); the charging terminal (33) is inserted into the charging socket (34) and can transmit the electric energy of the charging pile body (2) to the charging gun body (5) via the charging socket (34), the charging terminal (33), and the connection wire (6).

8. The electric vehicle charging pile fast charging safety isolation protection device according to claim 7, characterized in that: The first connecting plate (28) is fixedly connected to the side wall of the connecting head (27), the second connecting plate (32) is fixedly connected to the side wall of the connecting tube (29), the upper end of the hollow U-shaped frame (11) is fixedly connected to a limiting rod (35), and the limiting rod (35) slides through the first connecting plate (28) and the second connecting plate (32) in sequence from top to bottom.

9. The electric vehicle charging pile fast charging safety isolation protection device according to claim 8, characterized in that: A second spring (31) is fixedly connected to the inner wall of the connecting tube (29), and an end of the second spring (31) away from the connecting tube (29) is fixedly connected to a top plate (30).

Images