A charging pile automatic testing device and a method of using the same

Abstract

The present invention belongs to the technical field of testing equipment, and in particular, relates to an automatic testing equipment for a charging pile and a method for using the same. The automatic testing equipment for the charging pile comprises a fixed shell, the bottom surface of the fixed shell is fixedly connected to a bottom plate, the top surface of the fixed shell is fixedly connected to an annular plate, one side of the fixed shell is provided with an opening, a movable shell is movably connected to a position of the opening between the bottom plate and the annular plate, a positioning assembly is provided on the movable shell, a circular ring plate is rotatably connected inside the annular plate, a rotation adjustment assembly for adjusting the rotation of the circular ring plate is provided on the top surface of the annular plate, a height adjustment assembly is provided on the circular ring plate, a mounting ring is fixedly connected to the bottom end of the height adjustment assembly, a plurality of multifunctional detection assemblies are installed on the mounting ring, and a protective assembly is provided on the bottom surface of the circular ring plate. The present invention can adapt to the testing tasks of charging piles of different models and different functional requirements through rational design, thereby improving the testing efficiency and accuracy.

Description

Technical Field

[0001] The present invention belongs to the technical field of testing equipment, and in particular relates to a charging pile automatic testing device and a use method thereof. Background Art

[0002] With the rapid development of the electric vehicle market, the number and distribution range of charging piles, as the energy supply infrastructure for electric vehicles, are constantly expanding. The quality and performance of charging piles are directly related to the charging safety and efficiency of electric vehicles. Therefore, it is crucial to conduct comprehensive, accurate and efficient testing of charging piles.

[0003] Traditional charging pile testing methods mostly rely on manual operations and have many limitations. First, manual testing is inefficient and requires a lot of time and manpower costs. In large-scale charging pile construction and maintenance scenarios, it is difficult to meet the needs of rapid testing, which can easily lead to extended deployment and operation cycles of charging piles. Second, the accuracy of manual testing is difficult to guarantee, and there are differences in the operating standards and judgment abilities of different testers, which may lead to problems such as inaccurate test data and missing test items, thus affecting the quality assessment of the charging piles. Summary of the invention

[0004] The main technical problem to be solved by the present invention is to provide an automatic charging pile testing device which can adapt to the testing tasks of charging piles of different models and different functional requirements and has high testing efficiency and accuracy.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A charging pile automatic testing device comprises a fixed shell, the bottom surface of the fixed shell is fixedly connected to a bottom plate, the top surface of the fixed shell is fixedly connected to an annular plate, one side of the fixed shell is provided with an opening, a movable shell is movably connected to a position of the opening between the bottom plate and the annular plate, a positioning component is provided on the movable shell, a circular ring plate is rotatably connected inside the annular plate, a rotation adjustment component for adjusting the rotation of the circular ring plate is provided on the top surface of the annular plate, a height adjustment component is provided on the circular ring plate, a mounting ring is fixedly connected to the bottom end of the height adjustment component, a plurality of multifunctional detection components are installed on the mounting ring, and a protective component is provided on the bottom surface of the circular ring plate.

[0007] The following is a further optimization of the above technical solution by the present invention:

[0008] The rotation adjustment assembly includes a side plate, which is fixedly connected to the top surface of the annular plate. A first rotating shaft is rotatably connected between the side plate and the annular plate. A first motor is installed on the side plate. The output shaft of the first motor is transmission-connected to the first rotating shaft. A first gear is fixedly connected to the first rotating shaft. A ring gear is fixedly connected to the side wall of the annular plate. The first gear is meshingly connected to the ring gear.

[0009] Further optimization: the height adjustment component includes a rack, an eccentric through groove is opened on the top surface of the circular ring plate, the rack is slidably connected to the through groove, two vertical plates are fixedly connected to the circular ring plate near the through groove, the two vertical plates are arranged in parallel with a certain distance, a second rotating shaft is rotatably connected between the two vertical plates, a second gear is fixedly connected to the second rotating shaft, the second gear is meshingly connected to the rack, a second motor is installed on any one of the vertical plates, and the output shaft of the second motor is drivingly connected to the second rotating shaft.

[0010] Further optimization: The multifunctional detection component includes a connecting plate, a mounting ring fixedly connected to the bottom end of the rack, a plurality of top grooves are opened on the top surface of the mounting ring, the connecting plate is slidably connected to the corresponding top grooves, an electric push rod is fixedly connected to the side wall of the connecting plate, the telescopic rod of the electric push rod is fixedly connected to the mounting ring, a top shell is fixedly connected to the top surface of the connecting plate, a splint is slidably connected in the top shell, the cross-section of the splint is an "L"-shaped structure, and a visual device is fixedly connected to the top surface of the splint.

[0011] Further optimization: a second spring is arranged in the top shell, one end of the second spring is fixedly connected to the top shell, and the other end of the second spring is fixedly connected to the clamping plate.

[0012] Further optimization: the positioning assembly includes two annular grooves, which are respectively opened on the sides of the bottom plate and the annular plate close to each other, and movable rings are movably connected in the annular grooves, and the two movable rings are respectively fixedly connected to the upper and lower ends of the movable shell.

[0013] Further optimization: a mounting plate is fixedly connected to the annular plate, a positioning rod is slidably connected inside the mounting plate, the end of the positioning rod away from the annular plate is fixedly connected to the circular plate, a positioning groove is provided on the side wall of the movable ring close to the annular plate, the positioning rod and the positioning groove are arranged correspondingly, a first spring is sleeved on the positioning rod, one end of the first spring is fixedly connected to the circular plate, and the other end of the first spring is fixedly connected to the mounting plate.

[0014] Further optimization: The protection component includes a flat plate, which is arranged below the circular plate and fixedly connected to the circular plate through multiple vertical rods, and multiple fire sprinklers are installed on the bottom surface of the flat plate.

[0015] Further optimization: a plurality of fixing plates are fixedly connected to the bottom surface of the circular ring plate, a groove is provided at one end of the fixing plate away from the circular ring plate, and a groove wheel is rotatably connected in the groove.

[0016] Further optimization: The present invention also discloses a method for using a charging pile automatic test device, based on the above charging pile automatic test device, comprising the following steps:

[0017] S1: Install a specified number of multifunctional detection components on the mounting ring according to the test items and the number of test equipment, then install the equipment for charging pile testing on the top surface of the connecting plate, and connect the test equipment to the circuit. The end of the circuit away from the test equipment passes through the fixing plate and passes through the device from the circular plate, and the connection between the test equipment and the external control equipment is completed through the wire;

[0018] S2: Place the charging pile to be tested in the center of the fixed shell. The operator pulls the movable shell, which drives the movable ring to move in the annular groove. When the movable shell rotates to the position of closing the opening, the positioning rod is inserted into the positioning groove on the side wall of the movable ring under the action of the first spring to position the movable shell. At this time, the movable shell and the fixed shell are used to complete the closing operation of the charging pile.

[0019] S3: Start the test equipment through an external control device, start the second motor, the second motor drives the second shaft to rotate, the second shaft drives the second gear to rotate, the second gear meshes with the rack to move, the rack drives the mounting ring to move toward one side of the charging pile, and the real-time image of the charging pile is acquired through the visual device, and the mounting ring is moved to a specified height position around the charging pile. The second motor stops, and the first motor is started. The first motor drives the first shaft to rotate, the first shaft drives the first gear to rotate, the first gear meshes with the ring gear to rotate, and the ring gear drives the circular ring plate to rotate, so as to use the rack to drive the mounting ring to rotate together. Through image analysis of the visual device, the test equipment on the mounting ring is rotated to a specified position around the charging pile, and the rotation of the first motor is stopped;

[0020] S4: Start the electric push rod, which drives the connecting plate to move, so that the connecting plate moves toward the side of the charging pile. The test equipment on the connecting plate is connected to the circuit of the charging pile. The test equipment is started through an external control device, and the test equipment is used to realize the automatic test operation of the charging pile. The test data of the test equipment is transmitted to the external device through the wire to realize the collection of the test data.

[0021] S5: When one of the test devices completes the automated test operation on the charging pile, the electric push rod runs in the reverse direction, so that the test device is separated from the charging pile, and the position adjustment of the remaining test devices is realized based on the control of the first motor and the second motor by the visual device, and then the electric push rod at the specified position is used to push the corresponding test device to realize the automated test operation of multiple items of the charging pile;

[0022] S6: If a short circuit or fire occurs during the test, the external control device controls the first motor, the second motor and the electric push rod to reset, reset the mounting ring to the uppermost position, and start the fire sprinkler at the same time, and use the fire sprinkler to extinguish the fire on the charging pile to reduce the occurrence of dangerous situations during the test;

[0023] S7: After the charging pile is tested, the external control device controls the first motor, the second motor and the electric push rod to reset, so that the mounting ring is separated from the charging pile, and the movable shell is pushed to move to the side of the fixed shell, so that the charging pile that has been tested can be easily taken out.

[0024] The present invention is provided with a height adjustment component, a rotation adjustment component and a visual device. By driving the first motor, the first gear can be meshed with the ring gear to rotate, thereby adjusting the position of the test device on the mounting ring. By driving the second motor, the second gear can be meshed with the rack to move, and the height of the test device on the mounting ring can be adjusted. The detection device can be quickly and accurately positioned at various key parts of the charging pile according to a preset program, and multiple parameters can be accurately measured, which greatly improves the test efficiency and accuracy, reduces human errors, and can achieve all-round and automated testing of the charging pile based on the synergistic effect of the visual device.

[0025] The present invention is provided with a mounting ring and a multifunctional test component. Different numbers and types of multifunctional detection components can be flexibly installed on the mounting ring according to the test requirements, so as to adapt to the charging pile test tasks of different models and different functional requirements. The position of the detection device can be conveniently adjusted through the cooperation of the electric push rod and the top groove, so as to realize the targeted test of different parts of the charging pile, and conveniently realize the automated test of the charging pile.

[0026] The present invention is provided with a protective component. When a dangerous situation such as a short circuit and fire occurs during the test, the fire sprinkler can be quickly started to extinguish the fire, thereby effectively reducing the safety risk. At the same time, the design of the movable shell and the positioning component can seal the charging pile during the test, reduce the interference of external factors on the test process, and provide a certain degree of safety isolation for the test personnel.

[0027] The present invention is further described below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall three-dimensional structure of an embodiment of the present invention;

[0029] Figure 2 It is a schematic diagram of a cross-sectional three-dimensional structure of an embodiment of the present invention;

[0030] Figure 3 It is a schematic diagram of the internal three-dimensional structure of an embodiment of the present invention;

[0031] Figure 4 A schematic diagram of the three-dimensional structure of the interior of an embodiment of the present invention from another perspective;

[0032] Figure 5 is a schematic diagram of the three-dimensional structure of the rotation adjustment assembly in an embodiment of the present invention;

[0033] Figure 6 is a schematic diagram of the three-dimensional structure of a positioning component in an embodiment of the present invention;

[0034] Figure 7 It is a schematic diagram of the three-dimensional structure of the multifunctional detection component in an embodiment of the present invention;

[0035] Figure 8 It is a schematic diagram of the three-dimensional structure of the mounting ring in an embodiment of the present invention.

[0036] In the figure: 1-fixed shell; 2-bottom plate; 3-annular plate; 4-movable shell; 5-positioning assembly; 6-circular plate; 7-rotation adjustment assembly; 8-height adjustment assembly; 9-mounting ring; 10-top groove; 11-multi-function detection assembly; 12-protection assembly; 13-circular groove; 14-movable ring; 15-positioning groove; 16-positioning rod; 17-mounting plate; 18-circular plate; 19-first spring; 20-side plate; 21-first electric machine; 22-first rotating shaft; 23-first gear; 24-ring gear; 25-rack; 26-second gear; 27-second rotating shaft; 28-second motor; 29-vertical plate; 30-connecting plate; 31-electric push rod; 32-top shell; 33-second spring; 34-clamp; 35-visual device; 36-vertical rod; 37-flat plate; 38-fire sprinkler; 39-fixing plate; 40-groove wheel; 41-round shell; 42-bolt. DETAILED DESCRIPTION

[0037] like Figure 1-8 As shown, a charging pile automatic testing device includes a fixed shell 1, the bottom surface of the fixed shell 1 is fixedly connected to a bottom plate 2, the top surface of the fixed shell 1 is fixedly connected to an annular plate 3, one side of the fixed shell 1 is provided with an opening, a movable shell 4 is movably connected between the bottom plate 2 and the annular plate 3 at the position of the opening, and a positioning assembly 5 is provided on the movable shell 4.

[0038] The positioning assembly 5 includes two annular grooves 13 , which are respectively formed on the sides of the bottom plate 2 and the annular plate 3 close to each other. A movable ring 14 is movably connected in each of the annular grooves 13 , and the two movable rings 14 are respectively fixedly connected to the upper and lower ends of the movable shell 4 .

[0039] A mounting plate 17 is fixedly connected to the annular plate 3, and the cross-section of the mounting plate 17 is an "L"-shaped structure. A positioning rod 16 is slidably connected inside the mounting plate 17, and a circular plate 18 is fixedly connected to the end of the positioning rod 16 away from the annular plate 3. A positioning groove 15 is opened on the side wall of the movable ring 14 close to the annular plate 3, and the positioning rod 16 is correspondingly arranged to the positioning groove 15.

[0040] A first spring 19 is sleeved on the positioning rod 16 . One end of the first spring 19 is fixedly connected to the circular plate 18 , and the other end of the first spring 19 is fixedly connected to the mounting plate 17 .

[0041] The first spring 19 is a tension spring.

[0042] With this design, when the operator pulls the movable shell 4, the movable shell 4 drives the movable ring 14 to move in the annular groove 13. The annular groove 13 and the movable ring 14 play a guiding role in the movement of the movable shell 4. When the movable shell 4 rotates to a position on one side of the fixed shell 1, the positioning rod 16 is inserted into the positioning groove 15 on the side wall of the movable ring 14 under the action of the first spring 19 to position the movable shell 4. At this time, the movable shell 4 and the fixed shell 1 are used to complete the closing operation of the charging pile, which reduces the interference of external factors on the test process and provides a certain degree of safety isolation for the testers.

[0043] A circular ring plate 6 is rotatably connected inside the annular plate 3 , and a rotation adjustment component 7 for adjusting the rotation of the circular ring plate 6 is provided on the top surface of the annular plate 3 .

[0044] The rotation adjustment assembly 7 includes a side plate 20, which is fixedly connected to the top surface of the annular plate 3. The cross-section of the side plate 20 is an "L"-shaped structure. A first rotating shaft 22 is rotatably connected between the side plate 20 and the annular plate 3. A first motor 21 is installed on the side plate 20, and the output shaft of the first motor 21 is transmission-connected to the first rotating shaft 22.

[0045] A first gear 23 is fixedly connected to the first rotating shaft 22 , and a ring gear 24 is fixedly connected to the side wall of the ring plate 3 . The first gear 23 is meshingly connected to the ring gear 24 .

[0046] In this design, by starting the first motor 21, the first motor 21 drives the first shaft 22 to rotate, the first shaft 22 drives the first gear 23 to rotate, the first gear 23 engages the ring gear 24 to rotate, and the ring gear 24 drives the annular plate 6 to rotate.

[0047] A height adjustment assembly 8 is provided on the annular plate 6 .

[0048] The height adjustment assembly 8 includes a rack 25, and a through groove is eccentrically opened on the top surface of the circular ring plate 6. The rack 25 is slidably connected to the through groove. Two vertical plates 29 are fixedly connected to the circular ring plate 6 near the through groove. The two vertical plates 29 are arranged in parallel with a certain distance. A second rotating shaft 27 is rotatably connected between the two vertical plates 29, and a second gear 26 is fixedly connected to the second rotating shaft 27. The second gear 26 is meshingly connected to the rack 25.

[0049] A second motor 28 is installed on any one of the vertical plates 29 , and an output shaft of the second motor 28 is drivingly connected to the second rotating shaft 27 .

[0050] With this design, when the second motor 28 is started, the second motor 28 drives the second rotating shaft 27 to rotate, the second rotating shaft 27 drives the second gear 26 to rotate, and the second gear 26 engages with the rack 25 to move.

[0051] The bottom end of the rack 25 is fixedly connected with a mounting ring 9 , and a plurality of multifunctional detection components 11 are mounted on the mounting ring 9 .

[0052] The multifunctional detection component 11 includes a connecting plate 30, and a plurality of top grooves 10 are opened on the top surface of the mounting ring 9. The connecting plate 30 is slidably connected to its corresponding top grooves 10. An electric push rod 31 is fixedly connected to the side wall of the connecting plate 30, and the telescopic rod of the electric push rod 31 is fixedly connected to the mounting ring 9.

[0053] A top shell 32 is fixedly connected to the top surface of the connecting plate 30 , a clamping plate 34 is slidably connected inside the top shell 32 , the cross section of the clamping plate 34 is an “L”-shaped structure, and a visual device 35 is fixedly connected to the top surface of the clamping plate 34 .

[0054] A second spring 33 is disposed in the top shell 32 . One end of the second spring 33 is fixedly connected to the top shell 32 , and the other end of the second spring 33 is fixedly connected to the clamping plate 34 .

[0055] The second spring 33 is a tension spring.

[0056] This design makes it convenient to place the equipment for testing the charging pile on the top surface of the connecting plate 30. The second spring 33 pulls the clamp 34 so that the clamp 34 fixes the test equipment on the connecting plate 30, and the electric push rod 31 is started to facilitate the test equipment to approach or move away from the charging pile.

[0057] The second motor 28 is started, and the second motor 28 drives the rack 25 to move downward, and the rack 25 drives the mounting ring 9 to move toward one side of the charging pile, so as to facilitate the adjustment of the test equipment to the specified height of the charging pile and facilitate the use of automated testing.

[0058] The first motor 21 is started to drive the annular plate 6 to rotate, thereby driving the mounting ring 9 to rotate, so as to adjust the circumferential position of the test device, thereby facilitating the realization of automated test operations.

[0059] Different numbers and types of test equipment can be flexibly installed on the mounting ring 9 according to the test requirements, which can adapt to the charging pile test tasks of different models and different functional requirements, and can conveniently realize the automated test of the charging pile.

[0060] A plurality of round shells 41 are fixedly connected to the outer wall of the mounting ring 9 , and the round shells 41 are arranged corresponding to the top grooves 10 . The telescopic rod of the electric push rod 31 is inserted into the round shells 41 and connected by bolts 42 , so as to facilitate the installation connection between the telescopic rod of the electric push rod 31 and the mounting ring 9 .

[0061] A protection component 12 is arranged on the bottom surface of the annular plate 6 .

[0062] The protection assembly 12 includes a flat plate 37 , which is disposed below the circular plate 6 and fixedly connected to the circular plate 6 via a plurality of vertical rods 36 , and a plurality of fire sprinklers 38 are mounted on the bottom surface of the flat plate 37 .

[0063] With this design, when a dangerous situation such as a short circuit and fire occurs during the test, the fire sprinkler 38 can be quickly activated to extinguish the fire, which effectively reduces the safety risk and improves the safety of the test. The fire sprinkler 38 is connected to the fire-fighting equipment.

[0064] A plurality of fixing plates 39 are fixedly connected to the bottom surface of the circular ring plate 6. A groove is provided at one end of the fixing plate 39 away from the circular ring plate 6. A groove wheel 40 is rotatably connected in the groove, so that the wires of the test equipment can pass through the groove. The groove wheel 40 is convenient for guiding the wires, avoiding damage to the wires and affecting the test, and has a good use effect.

[0065] The present invention also provides a method for using the automatic testing device for a charging pile, comprising the following steps:

[0066] S1: Install a specified number of multifunctional detection components 11 on the mounting ring 9 according to the test items and the number of test equipment, then install the equipment for charging pile testing on the top surface of the connecting plate 30, and connect the test equipment to the circuit. The end of the circuit away from the test equipment passes through the fixing plate 39 and passes through the device from the circular plate 6, and the connection between the test equipment and the external control equipment is completed through the wire;

[0067] S2: The charging pile to be tested is placed in the center of the fixed shell 1. The operator pulls the movable shell 4, and the movable shell 4 drives the movable ring 14 to move in the annular groove 13. When the movable shell 4 rotates to the position of closing the opening, the positioning rod 16 is inserted into the positioning groove 15 on the side wall of the movable ring 14 under the action of the first spring 19 to realize the positioning of the movable shell 4. At this time, the movable shell 4 and the fixed shell 1 are used to complete the closing operation of the charging pile.

[0068] S3: Start the test equipment through an external control device, start the second motor 28, the second motor 28 drives the second shaft 27 to rotate, the second shaft 27 drives the second gear 26 to rotate, the second gear 26 engages the rack 25 to move, the rack 25 drives the mounting ring 9 to move toward the side of the charging pile, and the real-time image of the charging pile is acquired through the visual device 35, and the mounting ring 9 is moved to a specified height position around the charging pile. The second motor 28 stops, and the first motor 21 is started. The first motor 21 drives the first shaft 22 to rotate, the first shaft 22 drives the first gear 23 to rotate, the first gear 23 engages the ring gear 24 to rotate, and the ring gear 24 drives the annular plate 6 to rotate, so that the rack 25 drives the mounting ring 9 to rotate together, and through the image analysis of the visual device 35, the test equipment on the mounting ring 9 is rotated to the specified position around the charging pile, and the rotation of the first motor 21 is stopped;

[0069] S4: Start the electric push rod 31, the electric push rod 31 drives the connecting plate 30 to move, so that the connecting plate 30 moves to one side of the charging pile, the test equipment on the connecting plate 30 is connected to the circuit of the charging pile, the test equipment is started by the external control device, the test equipment is used to realize the automatic test operation of the charging pile, and the test data of the test equipment is transmitted to the external device through the wire to realize the collection of the test data;

[0070] S5: When one of the test devices completes the automated test operation on the charging pile, the electric push rod 31 runs in the reverse direction, so that the test device is separated from the charging pile, and based on the control of the first motor 21 and the second motor 28 by the visual device 35, the position adjustment of the remaining test devices is realized, and then the electric push rod 31 at the specified position is used to push the corresponding test device to realize the automated test operation of multiple items of the charging pile;

[0071] S6: If a short circuit or fire occurs during the test, the external control device controls the first motor 21, the second motor 28 and the electric push rod 31 to reset, reset the mounting ring 9 to the uppermost position, and start the fire sprinkler 38 at the same time, and use the fire sprinkler 38 to extinguish the fire on the charging pile, thereby reducing the occurrence of dangerous situations during the test;

[0072] S7: After the charging pile test is completed, the external control device controls the first motor 21, the second motor 28 and the electric push rod 31 to reset, so that the mounting ring 9 is separated from the charging pile, and by pushing the movable shell 4, the movable shell 4 moves to the side of the fixed shell 1, so that the charging pile that has been tested can be easily taken out.

[0073] For those skilled in the art, according to the teachings of the present invention, without departing from the principles and spirit of the present invention, changes, modifications, substitutions and variations made to the implementation methods are still within the protection scope of the present invention.

Claims

1. A charging pile automatic testing device, comprising a fixed shell (1), characterized in that: The bottom surface of the fixed shell (1) is fixedly connected to a bottom plate (2), the top surface of the fixed shell (1) is fixedly connected to an annular plate (3), one side of the fixed shell (1) is provided with an opening, a movable shell (4) is movably connected between the bottom plate (2) and the annular plate (3) at the position of the opening, a positioning component (5) is provided on the movable shell (4), a circular ring plate (6) is rotatably connected inside the annular plate (3), a rotation adjustment component (7) for adjusting the rotation of the circular ring plate (6) is provided on the top surface of the annular plate (3), a height adjustment component (8) is provided on the circular ring plate (6), a mounting ring (9) is fixedly connected to the bottom end of the height adjustment component (8), a plurality of multifunctional detection components (11) are mounted on the mounting ring (9), and a protection component (12) is provided on the bottom surface of the circular ring plate (6); The height adjustment assembly (8) comprises a rack (25), a through slot is eccentrically formed on the top surface of the circular plate (6), the rack (25) is slidably connected to the through slot, two vertical plates (29) are fixedly connected to the circular plate (6) at a position close to the through slot, the two vertical plates (29) are arranged in parallel at a certain distance, a second rotating shaft (27) is rotatably connected between the two vertical plates (29), a second gear (26) is fixedly connected to the second rotating shaft (27), and the second gear (26) is meshingly connected to the rack (25).

2. The automatic testing device for charging pile according to claim 1, characterized in that: The rotation adjustment assembly (7) comprises a side plate (20), the side plate (20) being fixedly connected to the top surface of the annular plate (3), a first rotating shaft (22) being rotatably connected between the side plate (20) and the annular plate (3), a first motor (21) being mounted on the side plate (20), an output shaft of the first motor (21) being transmission-connected to the first rotating shaft (22), a first gear (23) being fixedly connected to the first rotating shaft (22), a ring gear (24) being fixedly connected to the side wall of the annular plate (3), and the first gear (23) being meshingly connected to the ring gear (24).

3. The automatic testing device for charging pile according to claim 2 is characterized in that: A second motor (28) is mounted on any one of the vertical plates (29), and an output shaft of the second motor (28) is drivingly connected to the second rotating shaft (27).

4. The automatic testing device for charging pile according to claim 3 is characterized in that: The multifunctional detection assembly (11) comprises a connecting plate (30), a mounting ring (9) fixedly connected to the bottom end of the rack (25), a plurality of top grooves (10) being provided on the top surface of the mounting ring (9), the connecting plate (30) being slidably connected to the corresponding top grooves (10), an electric push rod (31) being fixedly connected to the side wall of the connecting plate (30), a telescopic rod of the electric push rod (31) being fixedly connected to the mounting ring (9), a top shell (32) being fixedly connected to the top surface of the connecting plate (30), a clamping plate (34) being slidably connected inside the top shell (32), the cross section of the clamping plate (34) being an "L"-shaped structure, and a visual device (35) being fixedly connected to the top surface of the clamping plate (34).

5. The automatic testing equipment for charging pile according to claim 4 is characterized in that: A second spring (33) is disposed in the top shell (32); one end of the second spring (33) is fixedly connected to the top shell (32), and the other end of the second spring (33) is fixedly connected to the clamping plate (34).

6. The automatic testing device for charging pile according to claim 5, characterized in that: The positioning assembly (5) comprises two annular grooves (13), the two annular grooves (13) being respectively formed on mutually adjacent side surfaces of the bottom plate (2) and the annular plate (3), and movable rings (14) being movably connected in the annular grooves (13), and the two movable rings (14) being respectively fixedly connected to the upper and lower ends of the movable shell (4).

7. The automatic testing device for charging pile according to claim 6, characterized in that: The annular plate (3) is fixedly connected to a mounting plate (17), a positioning rod (16) is slidably connected inside the mounting plate (17), one end of the positioning rod (16) away from the annular plate (3) is fixedly connected to a circular plate (18), a positioning groove (15) is provided on the side wall of the movable ring (14) close to the annular plate (3), the positioning rod (16) and the positioning groove (15) are arranged correspondingly, a first spring (19) is sleeved on the positioning rod (16), one end of the first spring (19) is fixedly connected to the circular plate (18), and the other end of the first spring (19) is fixedly connected to the mounting plate (17).

8. The automatic testing device for charging pile according to claim 7, characterized in that: The protection assembly (12) comprises a flat plate (37), which is arranged below the circular plate (6) and fixedly connected to the circular plate (6) via a plurality of vertical rods (36), and a plurality of fire sprinklers (38) are mounted on the bottom surface of the flat plate (37).

9. The automatic testing device for charging pile according to claim 8, characterized in that: A plurality of fixing plates (39) are fixedly connected to the bottom surface of the circular ring plate (6), and a groove is formed at one end of the fixing plate (39) away from the circular ring plate (6), and a groove wheel (40) is rotatably connected in the groove.

10. A method for using a charging pile automatic test device, based on the charging pile automatic test device according to claim 9, characterized in that: The following steps are involved: S1: A specified number of multifunctional detection components (11) are installed on the mounting ring (9) according to the test items and the number of test equipment, and then the equipment for testing the charging pile is installed on the top surface of the connecting plate (30), and the test equipment is connected to the line, the end of the line away from the test equipment passes through the fixing plate (39) and passes through the device from the circular plate (6), and the connection between the test equipment and the external control equipment is completed through the wire; S2: The charging pile to be tested is placed at the center position inside the fixed shell (1), and the operator pulls the movable shell (4), so that the movable shell (4) drives the movable ring (14) to move in the annular groove (13). When the movable shell (4) rotates to a position where the opening is closed, the positioning rod (16) is inserted into the positioning groove (15) on the side wall of the movable ring (14) under the action of the first spring (19), thereby positioning the movable shell (4). At this time, the closing operation of the charging pile is completed using the movable shell (4) and the fixed shell (1); S3: The test device is started by an external control device, the second motor (28) is started, the second motor (28) drives the second rotating shaft (27) to rotate, the second rotating shaft (27) drives the second gear (26) to rotate, the second gear (26) engages the rack (25) to move, the rack (25) drives the mounting ring (9) to move toward the side of the charging pile, the real-time image of the charging pile is acquired by the visual device (35), the mounting ring (9) is moved to a specified height position around the charging pile, and the second motor (28) is stopped. The first motor (21) is started, the first motor (21) drives the first rotating shaft (22) to rotate, the first rotating shaft (22) drives the first gear (23) to rotate, the first gear (23) meshes with the ring gear (24) to rotate, the ring gear (24) drives the circular ring plate (6) to rotate, thereby using the rack (25) to drive the mounting ring (9) to rotate together, and through image analysis of the visual device (35), the test device on the mounting ring (9) is rotated to a specified position around the charging pile, and the rotation of the first motor (21) is stopped; S4: starting the electric push rod (31), the electric push rod (31) drives the connecting plate (30) to move, so that the connecting plate (30) moves toward one side of the charging pile, the test equipment on the connecting plate (30) is connected to the circuit of the charging pile, the test equipment is started through an external control device, the test equipment is used to implement an automated test operation on the charging pile, and the test data of the test equipment is transmitted to the external device through a wire, so that the test data is collected; S5: When one of the test devices completes the automated test operation on the charging pile, the electric push rod (31) runs in the reverse direction, so that the test device is separated from the charging pile, and based on the control of the first motor (21) and the second motor (28) by the visual device (35), the position of the remaining test devices is adjusted, and then the electric push rod (31) at the specified position is used to push the corresponding test device, so as to realize the automated test operation of multiple items on the charging pile; S6: If a short circuit and fire occur during the test, the external control device controls the first motor (21), the second motor (28) and the electric push rod (31) to reset, reset the mounting ring (9) to the uppermost position, and start the fire sprinkler (38) at the same time, and use the fire sprinkler (38) to extinguish the fire on the charging pile, thereby reducing the occurrence of dangerous situations during the test; S7: After the charging pile is tested, the external control device controls the first motor (21), the second motor (28) and the electric push rod (31) to reset, so that the mounting ring (9) is separated from the charging pile, and the movable shell (4) is pushed so that the movable shell (4) moves to the side of the fixed shell (1), and the charging pile that has been tested is taken out.

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