A new energy vehicle charging pile with automatic power-off upon abnormality

Abstract

The present invention discloses an abnormal self-power-off type new energy vehicle charging pile, which belongs to the field of charging pile technology, and includes a pile column, a toggle mechanism and a pneumatic locking mechanism. The upper end of the pile column supports a rear shell, and the front side of the rear shell is provided with a front cover, and the front cover is installed with a display screen. An emergency stop button is installed through the side of the pile column, and the emergency stop button is connected to the electronic control equipment in the rear shell. A toggle mechanism is installed in the rear shell, and the toggle mechanism is provided above the emergency stop button part in the rear shell. The emergency stop button part in the rear shell is connected with a pneumatic locking mechanism for locking the rear shell and the front cover. The invention can automatically press the emergency stop button, so that when the voltage is too high, the power can be automatically cut off, avoiding the loss of the car battery and safety hazards caused by high voltage. In addition, when maintenance personnel are repairing, the charging pile is ensured to be in a power-off state, which is conducive to the maintenance personnel to carry out operations safely.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy charging piles, and in particular to an abnormal self-power-off charging pile for new energy vehicles. Background Art

[0002] To address climate change, many countries and regions have set timetables for banning the sale of fuel-powered vehicles. Furthermore, to encourage consumers to purchase new energy vehicles, governments have introduced policies such as vehicle purchase subsidies and tax exemptions. This has led to an increasing number of new energy vehicles on the road. To meet the charging demand brought about by the increase in new energy vehicles, a large number of charging stations need to be built to prevent traffic and safety problems caused by the shortage of charging stations.

[0003] Although the popularity of new energy vehicle charging piles can solve the problem of difficulty in charging new energy vehicles, it is necessary to pay attention to safety issues during the use of charging piles. Therefore, charging piles are generally equipped with emergency stop devices to actively and promptly cut off power when an abnormality occurs to avoid safety problems.

[0004] The existing new energy vehicle charging piles still have the following technical problems when in use, such as:

[0005] 1. When using existing new energy vehicle charging piles, the main abnormalities include charging gun failure, display screen failure, circuit failure, etc. Among them, charging gun failure and display screen failure generally lead to charging failure, and circuit failure is mainly divided into three categories. One is open circuit, which will directly lead to charging failure, and the other two are low voltage and high voltage. When the voltage is too low, the charging speed will slow down, and when the voltage is too high, the car battery will be damaged and may overheat and cause fire. Therefore, when the voltage is too high, it is necessary to cut off the power in time to avoid accidents. The existing emergency stop device is generally manual and needs to be pressed manually. When the car is charging, the owner generally does not stay by the car, so it is impossible to cut off the power in time, which makes the car have a safety hazard when charging;

[0006] 2. Existing new energy vehicle charging piles need to be powered off before maintenance. However, if the maintenance personnel forget to power off during maintenance, safety accidents are likely to occur. Existing charging piles cannot be guaranteed to be in a powered-off state during maintenance. In addition, the existing charging piles are cumbersome to disassemble, which is not conducive to the maintenance personnel's quick disassembly and assembly.

[0007] Therefore, a new energy vehicle charging pile with an abnormal self-power-off function is needed to solve the above problems. Summary of the Invention

[0008] The purpose of the present invention is to provide a new energy vehicle charging pile with automatic power-off in the event of an abnormality, so as to solve the problem in the above background technology that the existing new energy vehicle charging pile requires manual pressing of the emergency stop device, thereby posing a safety hazard during charging and failing to ensure that the power is off during maintenance.

[0009] To achieve the above object, the present invention provides the following technical solutions:

[0010] A new energy vehicle charging pile with automatic power-off in the event of an abnormality, comprising a pile column, a toggle mechanism and a pneumatic locking mechanism. The upper end of the pile column supports a rear shell, and a front cover is provided on the front side of the rear shell. A display screen is installed on the front cover. An emergency stop button is installed through the side of the pile column, and the emergency stop button is connected to an electronic control device in the rear shell. A toggle mechanism is installed in the rear shell, and the toggle mechanism is provided above the emergency stop button part in the rear shell. A pneumatic locking mechanism is connected to the emergency stop button part in the rear shell for locking the rear shell and the front cover.

[0011] Preferably, the toggle mechanism includes a conical ring, a circular toggle frame, a gear, a double-headed tube and a spring. The conical ring is coaxially keyed to the outside of the emergency stop button part in the rear shell. The inner top surface and inner side surface of the rear shell are respectively fixedly connected with a support frame and a support bar, and the two support bars are slidably connected to the two sides of the circular toggle frame. The circular toggle frame is movably arranged through the oblique slot, and the oblique slot is arranged on both sides of the middle part of the double-headed tube. The inner side of the upper end of the double-headed tube is movably extended into the lower end of the limiting rod, and the upper end of the limiting rod is fixedly connected to the inner top surface of the rear shell. A spring is arranged between the lower end of the limiting rod and the inside of the upper end of the double-headed tube. The lower end of the double-headed tube The upper end of the push rod is movably extended, and a spring is provided between the middle and upper part of the push rod and the lower end of the double-headed tube. The middle and lower part of the push rod is provided with a ratchet, and the ratchet is contacted and connected to the upper surface of the limit frame, and the two end parts of the limit frame are movably extended to one end of the two connecting pipes, and the other end of the connecting pipe is fixedly connected to the inner side surface of the rear shell body. The limit frame and the return toggle frame are both provided with L-shaped tooth plates, and the two L-shaped tooth plates are respectively meshed and connected to the upper and lower sides of the gear, and the shaft end bearing of the gear is connected to the support frame, and the support frame and the L-shaped tooth plate at the top are fixedly connected with electromagnets, and the two electromagnets are relatively arranged.

[0012] Preferably, the position of the push rod corresponds to the position of the conical ring, and the axis of the push rod intersects the axis of the conical ring vertically, ensuring that the push rod stably squeezes the conical ring after falling.

[0013] Preferably, the structural shape of the limit frame is an "X" shape, and the maximum spacing between the two ratchets is between the maximum spacing and the minimum spacing inside the limit frame, so that after the two ratchets move to their maximum spacing range relative to the limit frame, the limit frame no longer limits the push rod on which the ratchets are set.

[0014] Preferably, the two L-shaped tooth plates are arranged symmetrically about the axis of the gear.

[0015] Preferably, the opposing surfaces of the two electromagnets are poles of the same name, and the two electromagnets are connected in series, and the two electromagnets are connected in parallel with the charging gun of the charging pile.

[0016] Preferably, the pneumatic locking mechanism includes a circular tube, a positioning rod, a limit strip and an air supply pipe, the circular tube is installed on the inner side of the rear shell body, and piston parts are provided at the four corners of the circular tube, the positioning rod and the limit strip are fixedly connected to the rear side of the front cover, and there are four groups of positioning rods and limit strips, which are respectively arranged at the four corners of the rear side of the front cover, and positioning blocks are installed at the four corners of the rear shell body, and the positioning blocks are provided with through holes for convenient passage of the corresponding positioning rods, and the limit strips are also provided with through holes for convenient passage of the corresponding limiting protrusions connected to the corresponding piston parts, the circular tube is connected to the piston tube through the air supply pipe, and the piston tube is installed on the outside of the electronic control equipment in the rear shell body, the inner side of the open end of the piston tube is seamlessly slidably connected to one end of the piston rod, and the other end of the piston rod is fixedly connected to one end of the drive plate, and the other end of the drive plate is connected to the outside of the emergency stop button part in the rear shell body by a bearing.

[0017] Preferably, the four corners of the circular tube are each provided with a raised tube body structure, and one end of the piston is seamlessly and slidingly connected to the inner side of the opening section of the tube body structure, the other end of the piston is connected to one end of the sheet structure, and a limiting protrusion is provided at the other end of the sheet structure.

[0018] Preferably, shielding plates are provided at the front and rear sides of the toggle mechanism, and the shielding plates are fixedly connected to the inner side of the rear shell body to improve the neatness of the interior of the rear shell body.

[0019] Compared with the prior art, the present invention has the following beneficial effects: the abnormal self-power-off new energy vehicle charging pile can automatically press the emergency stop button, so that when the voltage is too high, it can automatically cut off the power, avoiding the loss of the vehicle battery and safety hazards caused by high voltage. In addition, when maintenance personnel are repairing, the charging pile is ensured to be in a power-off state, which is conducive to the maintenance personnel to carry out their work safely:

[0020] 1. Through the two electromagnets, when the charging voltage increases, the repulsive force between the two electromagnets increases, which in turn causes the distance between the two electromagnets to increase, thereby causing the return toggle frame to move relative to the inclined slot, causing the double-headed tube to move downward, squeezing spring 1, and generating elastic potential energy. In the above process, the movement of the upper L-shaped toothed plate drives the gear to rotate, thereby driving the lower L-shaped toothed plate to move in the opposite direction. When the lower L-shaped toothed plate drives the limit frame to move to a certain distance, the two ratchet teeth are between the maximum spacing on the inner side of the limit frame. The elastic potential energy of spring 1 is released, pushing the rod downward, thereby squeezing the conical ring, causing the emergency stop button to move, thereby achieving the purpose of pressing the emergency stop button. When the voltage is too high, the power can be automatically cut off, avoiding high voltage-induced battery loss and safety hazards in the car.

[0021] 2. After the emergency stop button is pressed, when it moves, it will drive the piston rod to move through the drive plate, and then the piston rod can be moved into the piston tube, so that the gas in the piston tube enters the ring-shaped tube through the gas pipe. The gas entering the ring-shaped tube will increase the air pressure in the ring-shaped tube, and then push the piston part at the corner to move outward, so that the limit protrusion is no longer connected to the limit bar. At this time, the front cover can be directly removed to repair the charging pile. This means that if the maintenance personnel want to remove the front cover to repair the charging pile, they must press the emergency stop button, so as to ensure that the power is off during maintenance to avoid safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the separation structure of the rear housing and the front cover of the present invention;

[0024] Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure of point A;

[0025] Figure 4 For the present invention Figure 2 A schematic diagram of the enlarged structure of point B;

[0026] Figure 5 It is a partial cross-sectional structural diagram of the rear housing of the present invention;

[0027] Figure 6 For the present invention Figure 5 Schematic diagram of the enlarged structure of point C in the middle;

[0028] Figure 7 It is a schematic diagram of the partial structure of the present invention when viewed from above;

[0029] Figure 8 For the present invention Figure 7 The enlarged structural diagram of point D in the middle;

[0030] Figure 9 This is a schematic diagram of the connection structure between the emergency stop button and the circular tube of the present invention;

[0031] Figure 10 This is a rear view diagram of the connection structure of the toggle mechanism of the present invention;

[0032] Figure 11 It is a partial cross-sectional structural diagram of the toggle mechanism of the present invention;

[0033] Figure 12 For the present invention Figure 11 Schematic diagram of the enlarged structure at point E.

[0034] In the figure: 1. pile; 2. rear shell; 3. front cover; 4. display screen; 5. emergency stop button; 6. circular tube; 7. positioning rod; 8. limit strip; 9. positioning block; 10. piston member; 11. limit protrusion; 12. conical ring; 13. connecting tube; 14. limit frame; 15. support bar; 16. circular toggle frame; 17. L-shaped gear plate; 18. gear; 19. support frame; 20. electromagnet; 21. push rod; 22. ratchet; 23. spring 1; 24. double-headed tube; 25. inclined groove; 26. limit rod; 27. piston tube; 28. piston rod; 29. ​​drive plate; 30. gas pipe; 31. spring 2. DETAILED DESCRIPTION

[0035] 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.

[0036] See also Figures 1-12 , the present invention provides the following technical solutions:

[0037] Embodiment 1: In order to solve the problem that the emergency stop device cannot be pressed in time when the voltage of the new energy vehicle charging pile is too high, which easily leads to vehicle battery loss or safety hazards, the following technical solution is provided, specifically, an abnormal self-power-off new energy vehicle charging pile, including a pile column 1, a toggle mechanism and a pneumatic locking mechanism. The upper end of the pile column 1 supports the rear shell 2, and the front side of the rear shell 2 is provided with a front cover 3, and a display screen 4 is installed on the front cover 3. An emergency stop button 5 is installed through the side of the pile column 1, and the emergency stop button 5 is connected to the electronic control equipment in the rear shell 2. A toggle mechanism is installed in the rear shell 2, and the toggle mechanism is arranged above the emergency stop button 5 part in the rear shell 2. The electronic control equipment is existing technology. By pressing the emergency stop button 5, the electronic control equipment cuts off the circuit of the charging pile, thereby achieving the purpose of power off.

[0038] The toggle mechanism includes a conical ring 12, a return toggle frame 16, a gear 18, a double-headed tube 24 and a spring 231. The conical ring 12 is coaxially keyed to the outside of the emergency stop button 5 in the rear shell 2. The inner top surface and inner side surface of the rear shell 2 are fixedly connected with a support frame 19 and a support bar 15, respectively, and the two support bars 15 are slidably connected to the two sides of the return toggle frame 16. The return toggle frame 16 is movably arranged through the inclined groove 25, and the inclined groove 25 is arranged on both sides of the middle part of the double-headed tube 24. The inner side of the upper end of the double-headed tube 24 is movably extended into the lower end of the limiting rod 26, and the upper end of the limiting rod 26 is fixedly connected to the inner top surface of the rear shell 2. A spring 231 is arranged between the lower end of the limiting rod 26 and the inside of the upper end of the double-headed tube 24. The lower end of the double-headed tube 24 is movably extended. The upper end of the push rod 21 is inserted, and a spring 23 is provided between the middle and upper part of the push rod 21 and the lower end of the double-headed tube 24. The middle and lower part of the push rod 21 is provided with a ratchet 22, and the ratchet 22 is in contact with the upper surface of the limit frame 14, and the two ends of the limit frame 14 are respectively movably extended into one end of the two connecting tubes 13, and the other end of the connecting tube 13 is fixedly connected to the inner side of the rear shell 2. The limit frame 14 and the return toggle frame 16 are both provided with L-shaped tooth plates 17, and the two L-shaped tooth plates 17 are respectively meshed and connected to the upper and lower sides of the gear 18. The shaft end bearing of the gear 18 is connected to the support frame 19, and the support frame 19 and the L-shaped tooth plate 17 at the top are both fixedly connected with an electromagnet 20. The two electromagnets 20 are relatively arranged, and the charging During the charging process of the pile, if the voltage is too high, the repulsive force between the two electromagnets 20 will increase, causing the two to continue to move away from each other. In the process of the two electromagnets 20 continuing to move away from each other, the upper L-shaped toothed plate 17 will be driven to move. When the upper L-shaped toothed plate 17 moves, the gear 18 causes the lower L-shaped toothed plate 17 to move in the opposite direction, thereby moving the limit frame 14. When the upper L-shaped toothed plate 17 moves, it will also drive the return-shaped toggle frame 16 to move, thereby causing the return-shaped toggle frame 16 to move in the inclined slot 25, so that the double-headed tube 24 moves downward. Since the two ratchet teeth 22 have not moved to the maximum spacing range in the limit frame 14, the push rod 21 cannot move downward, so the spring 1 23 is compressed. This causes the elastic potential energy of the spring 1 23 to gradually increase. When the two ratchets 22 move relative to the limit frame 14 to within the maximum spacing range inside the limit frame 14, the elastic potential energy of the spring 1 23 is released. At this time, the push rod 21 moves downward, thereby squeezing the conical ring 12, achieving the purpose of pressing the emergency stop button 5. At this time, the power can be cut off to avoid further charging, so as to avoid damage to the car battery and safety hazards. The position of the push rod 21 corresponds to the position of the conical ring 12, and the axis of the push rod 21 intersects the axis of the conical ring 12 at right angles to ensure that the push rod 21 stably squeezes the conical ring 12 after falling. The structural shape of the limit frame 14 is a "J" shape, and the maximum spacing of the two ratchets 22 is between the maximum spacing and the minimum spacing inside the limit frame 14.After the two ratchets 22 move to their maximum spacing relative to the limit frame 14, the limit frame 14 no longer limits the push rod 21 on which the ratchets 22 are set. The two L-shaped tooth plates 17 are symmetrically arranged about the axis of the gear 18. The opposing surfaces of the two electromagnets 20 have the same magnetic poles, and the two electromagnets 20 are connected in series. The two electromagnets 20 are also connected in parallel with the charging gun of the charging pile. Shields are provided at the front and rear of the toggle mechanism. The shields are fixedly connected to the inside of the rear housing 2 to improve the cleanliness of the interior of the rear housing 2.

[0039] Example 2: In order to solve the problem that the charging piles of new energy vehicles cannot be kept in the power-off state during maintenance, which makes safety accidents prone to occur, the following technical solution is provided. Specifically, a pneumatic locking mechanism is connected to the part of the emergency stop button 5 in the rear shell 2, which is used to lock the rear shell 2 and the front cover 3.

[0040] The pneumatic locking mechanism includes a circular tube 6, a positioning rod 7, a limit strip 8 and an air supply pipe 30. The circular tube 6 is installed on the inner side of the rear shell 2, and piston parts 10 are provided at the four corners of the circular tube 6. The positioning rod 7 and the limit strip 8 are fixedly connected to the rear side of the front cover 3, and there are four groups of positioning rods 7 and limit strips 8, which are respectively arranged at the four corners of the rear side of the front cover 3. Positioning blocks 9 are installed at the four corners of the rear shell 2, and the positioning blocks 9 are provided with through holes for the corresponding positioning rods 7 to pass through. The limit strip 8 is also provided with through holes for the corresponding limit protrusions 11 connected to the piston parts 10 to pass through. The circular tube 6 is connected to the piston tube 27 through the air supply pipe 30, and the piston tube 27 is installed on the outside of the electronic control device in the rear shell 2. One end of the piston rod 28 is seamlessly slidably connected to the inside of the open end of the piston tube 27, and the other end of the piston rod 28 is fixedly connected to one end of the drive plate 29. The drive plate 29 The other end bearing is connected to the outer side of the emergency stop button 5 in the rear shell 2. When the charging pile needs to be repaired, it is necessary to press the emergency stop button 5 first, so that the emergency stop button 5 drives the drive plate 29 to move, and then drives the piston rod 28 to move into the piston tube 27, so that the gas in the piston tube 27 enters the circular tube 6 through the gas supply pipe 30, thereby increasing the air pressure in the circular tube 6. The increase in air pressure in the circular tube 6 will cause the piston member 10 at the corner of the circular tube 6 to move outward, and then cause the limiting protrusion 11 connected to the piston member 10 to no longer penetrate the through hole on the limiting strip 8, so that the front cover 3 can be directly removed from the rear shell 2, so as to facilitate the maintenance of the charging pile. The four corners of the circular tube 6 are provided with a raised tube structure, and the inner side of the opening section of the tube structure is seamlessly slidably connected to one end of the piston member 10, and the other end of the piston member 10 is connected to one end of the sheet structure, and the limiting protrusion 11 is provided at the other end of the sheet structure.

[0041] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0042] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An abnormal self-power-off type new energy vehicle charging pile, comprising a pile column (1), a toggle mechanism and a pneumatic locking mechanism, characterized in that: The upper end of the pile column (1) supports the rear shell (2), and the front side of the rear shell (2) is provided with a front cover (3), and the front cover (3) is installed with a display screen (4). The side of the pile column (1) is penetrated by an emergency stop button (5), and the emergency stop button (5) is connected to the electric control device in the rear shell (2). A toggle mechanism is installed in the rear shell (2), and the toggle mechanism is arranged above the emergency stop button (5) part in the rear shell (2). The toggle mechanism includes a conical ring (12), a circular toggle frame (16), a gear (18), a double-headed tube (24) and a spring (31). The conical ring (12) is coaxially keyed to the outside of the emergency stop button (5) part in the rear shell (2). The inner top surface of the rear shell (2) The inner side surface is fixedly connected with a support frame (19) and a support bar (15), and the two support bars (15) are respectively slidably connected to the two sides of the return-shaped toggle frame (16), the return-shaped toggle frame (16) is movably extended through the inclined groove (25), and the inclined groove (25) is provided on both sides of the middle part of the double-headed tube (24), the inner side of the upper end of the double-headed tube (24) is movably extended into the lower end of the limiting rod (26), and the upper end of the limiting rod (26) is fixedly connected to the inner top surface of the rear shell (2), a spring 2 (31) is provided between the lower end of the limiting rod (26) and the inner part of the upper end of the double-headed tube (24), the lower end of the double-headed tube (24) is movably extended into the upper end of the push rod (21), and the middle and upper part of the push rod (21) is in contact with the double-headed tube (24) ) is provided with a spring (23) between the lower ends of the two connecting tubes (13) and the lower end of the two connecting tubes (13). A ratchet (22) is provided at the middle and lower part of the push rod (21). The ratchet (22) is in contact with the upper surface of the limit frame (14), and the two ends of the limit frame (14) are respectively movably extended into one end of the two connecting tubes (13). The other end of the connecting tube (13) is fixedly connected to the inner side of the rear shell (2). The limit frame (14) and the return-shaped toggle frame (16) are both provided with L-shaped tooth plates (17), and the two L-shaped tooth plates (17) are respectively meshed and connected to the upper and lower sides of the gear (18). The shaft end bearing of the gear (18) is connected to the support frame (19), and the support frame (19) and the L-shaped tooth plate (17) located above are both fixedly connected. There is an electromagnet (20), two of the electromagnets (20) are arranged relative to each other, the position of the push rod (21) corresponds to the position of the conical ring (12), and the axis of the push rod (21) intersects the axis of the conical ring (12) vertically, ensuring that the push rod (21) stably squeezes the conical ring (12) after it falls, the structural shape of the limit frame (14) is a "J" shape, and the maximum spacing of the two ratchets (22) is between the maximum spacing and the minimum spacing inside the limit frame (14), so that after the two ratchets (22) move to their maximum spacing range relative to the limit frame (14), the limit frame (14) no longer limits the push rod (21) on which the ratchets (22) are set, and a pneumatic locking mechanism is connected to the part of the emergency stop button (5) in the rear shell (2).The pneumatic locking mechanism is used for locking the rear shell (2) and the front cover (3), and comprises a circular tube (6), a positioning rod (7), a limiting strip (8) and an air supply pipe (30). The circular tube (6) is installed on the inner side of the rear shell (2), and piston members (10) are provided at the four corners of the circular tube (6). The positioning rod (7) and the limiting strip (8) are fixedly connected to the rear side of the front cover (3), and the positioning rod (7) and the limiting strip (8) are provided in four groups, which are respectively provided at the four corners of the rear side of the front cover (3). The four corners of the rear shell (2) are installed with positioning blocks (9), and the positioning blocks (9) are provided with The through hole is convenient for the corresponding positioning rod (7) to pass through, and the limit bar (8) is also provided with a through hole, which is convenient for the limit protrusion (11) connected to the corresponding piston member (10) to pass through. The circular tube (6) is connected to the piston tube (27) through the air supply pipe (30), and the piston tube (27) is installed on the outside of the electric control device in the rear shell (2). The inner side of the open end of the piston tube (27) is seamlessly slidably connected to one end of the piston rod (28), and the other end of the piston rod (28) is fixedly connected to one end of the drive plate (29). The other end of the drive plate (29) is connected to the outside of the emergency stop button (5) in the rear shell (2) by a bearing.

2. The abnormal self-power-off charging pile for new energy vehicles according to claim 1, characterized in that: The two L-shaped tooth plates (17) are symmetrically arranged about the axis of the gear (18).

3. The abnormal self-power-off charging pile for new energy vehicles according to claim 2, characterized in that: The opposing surfaces of the two electromagnets (20) are magnetic poles of the same name, and the two electromagnets (20) are connected in series, and the two electromagnets (20) are connected in parallel with the charging gun of the charging pile.

4. The abnormal self-power-off charging pile for new energy vehicles according to claim 3 is characterized by: The four corners of the circular tube (6) are all provided with a raised tube structure, and one end of the piston member (10) is seamlessly slidably connected to the inner side of the opening section of the tube structure, the other end of the piston member (10) is connected to one end of the sheet structure, and a limiting protrusion (11) is provided at the other end of the sheet structure.

5. The abnormal self-power-off charging pile for new energy vehicles according to claim 4 is characterized in that: Shielding plates are provided at the front and rear of the toggle mechanism, and the shielding plates are fixedly connected to the inner side of the rear shell (2) to improve the neatness of the interior of the rear shell (2).

Images