Charging pile assembly insulation test device
By designing a hub pole, wheel, and connecting rod structure, the problem of wire tangling in the charging pile insulation testing device is solved, achieving orderly wire storage and protection of the testing port, thus improving the portability and safety of the equipment.
Patent Information
- Application Number
- CN202422776570.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2034-11-14
AI Technical Summary
During use, the wires of existing charging pile insulation testing devices are prone to tangling and becoming difficult to untangle, and they are also prone to tangling when being retracted, affecting the portability and safety of the equipment.
The design incorporates components such as a cable gathering rod, pulleys, belts, and reciprocating lead screws. The cable gathering rod is driven by a motor to rotate, enabling the orderly winding and storage of wires. Combined with a linkage structure, the detection port is protected to prevent debris and moisture from entering.
It enables the orderly storage of wires, avoids tangling, improves the portability and safety of the equipment, ensures the protection of the detection port, and reduces electrical safety risks.
Smart Images

Figure CN223966658U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of insulation testing devices, and in particular to an insulation testing device for charging pile components. Background Technology
[0002] The widespread adoption of electric vehicles has become a significant global trend. This change not only involves technological advancements but also reflects the growing global demand for environmental protection, energy transition, and smart mobility.
[0003] With the increasing number of electric vehicles, charging stations are becoming more widespread and their numbers are rising rapidly. Regular insulation testing is one of the standard procedures for the maintenance and management of charging stations. When repairing and inspecting charging stations, it is important to test their insulation performance. Charging stations with poor insulation performance pose significant electrical safety risks and fire hazards, which can lead to damage to electric vehicle equipment and even endanger users.
[0004] During use, charging pile insulation testing devices often require additional wires to connect to the testing connectors. Since charging piles are widely distributed, the wires need to be extended for testing. When the wires are too long, they become tangled and difficult to untangle. Furthermore, the wires are prone to tangling when being retracted, making them impossible to store inside the device. Therefore, an insulation testing device for charging pile components is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides an insulation testing device for charging pile components, which aims to improve the problem of wires easily getting tangled when pulled out and retracted in the prior art.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] An insulation testing device for charging pile components includes a housing with a plurality of slots inside. A drive assembly is fixedly connected to the bottom of the slots. A cable collector is rotatably connected inside the drive assembly. A wheel is fixedly connected to the outer side of one end of the cable collector. A belt is coupled to the outer side of the wheel. The inner side of the belt is coupled to the outer side of two wheels. An ascending block is fixedly connected to the bottom of the slots. The ascending block has a hole. A reciprocating screw is rotatably connected to the hole of two ascending blocks. The outer side of the reciprocating screw is rotatably connected to the inner side of the hole of the two ascending blocks. The outer side of the reciprocating screw is fixedly connected to the inner side of the wheel. A sliding block is threadedly connected to the outer side of the reciprocating screw. A limit rod is fixedly connected to the inner side of the two ascending blocks. A sliding ring is sleeved on the outer side of the limit rod. The inner side of the sliding ring is slidably connected to the outer side of the limit rod. The top end of the sliding ring is fixedly connected to the bottom of the sliding block.
[0008] As a further description of the above technical solution:
[0009] The drive assembly includes a motor, a cable collector rod is rotatably connected inside the motor, the outer side of the cable collector rod is rotatably connected to the inner side of the motor, and a sleeve is fixedly connected to one end of the cable collector rod;
[0010] As a further description of the above technical solution:
[0011] The top end of the sliding ring is fixedly connected to the bottom of the sliding block. A wire is sleeved on the outside of the wire gathering rod. The outside of the wire is slidably connected to the inside of the sliding block. A detection needle is fixedly connected to the top end of the wire. A wire clamp is fixedly connected to the rear side of the housing. A wire is sleeved on the inside of the wire clamp. The outside of the wire is slidably connected to the inside of the wire clamp.
[0012] As a further description of the above technical solution:
[0013] The outer side of the outer shell has a groove, and a connecting plate is fixedly connected to the groove. A rotating shaft is fixedly connected to each end of the connecting plate. A short rod is sleeved on the outer side of the rotating shaft, and the outer side of the short rod is rotatably connected to the outer side of the rotating shaft. A second short rod is sleeved on the outer side of the rotating shaft, and the outer side of the second short rod is rotatably connected to the outer side of the rotating shaft. A rotating shaft is fixedly connected to the top end of the first short rod and the inner side of the middle section of the second short rod. An inner rod is rotatably connected to the outer side of the rotating shaft. A rotating shaft is fixedly connected to the top end of the second short rod, and an outer rod is sleeved on the outer side of the rotating shaft. The inner side of the outer rod is rotatably connected to the outer side of the rotating shaft. The inner side of the other end of the outer rod is rotatably connected to the outer side of the rotating shaft.
[0014] As a further description of the above technical solution:
[0015] The top end of the outer rod is rotatably connected to a connecting plate, the top end of the inner rod is rotatably connected to a connecting plate, the bottom of the connecting plate is fixedly connected to a detection port cover, and one side of the detection port cover is fixedly connected to the bottom of the connecting plate.
[0016] As a further description of the above technical solution:
[0017] A fast charging detection port is fixedly connected to the left side groove of the outer casing, a slow charging detection port is fixedly connected to the left side groove of the outer casing, and the right side of the slow charging detection port is fixedly connected to the left side of the fast charging detection port.
[0018] As a further description of the above technical solution:
[0019] A display screen is fixedly connected to the front side of the housing, a power switch is rotatably connected to the front side of the housing, the bottom of the display screen is fixedly connected to the front side of the housing, and the outside of the power switch is rotatably connected to the front side of the housing.
[0020] As a further description of the above technical solution:
[0021] A slot is provided on the left side of the outer casing, and an accessory box is slidably connected in the slot on the left side of the outer casing. A button is fixedly connected to the left side of the outer casing.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, the outer shell drives the cable gathering rod to rotate, so that the wires wound on the cable gathering rod can be pulled out or retracted. Two sets of wheels are connected by a belt, which drives the reciprocating screw and sliding block to move, so that the wires are wound at equal distances. This allows longer wires to be bundled in the outer shell. The appropriate length can be pulled out according to the height of the charging pile, and they are not easy to get tangled together, avoiding the problem of being difficult to untangle after they are tangled together.
[0024] 2. In this utility model, by rotating the short rod one and short rod two connected to the connecting plate, the inner rod and the outer rod also rotate. The outer rod and the inner rod drive the detection port cover connected to them to move. This series of linkage structures can realize the flipping of the detection port cover, so that when either the fast charging detection port or the slow charging detection port is working, the other port is protected from the entry of debris and moisture, thus ensuring the safety of the equipment. Attached Figure Description
[0025] Figure 1 This is a three-dimensional schematic diagram of an insulation testing device for a charging pile component proposed in this utility model.
[0026] Figure 2 This is a schematic diagram of the accessory box of the insulation testing device for charging pile components proposed in this utility model;
[0027] Figure 3 This is a schematic diagram of the structure of the detection needle of the insulation testing device for charging pile components proposed in this utility model;
[0028] Figure 4 This is a schematic diagram of the reciprocating lead screw of an insulation testing device for charging pile components proposed in this utility model;
[0029] Figure 5 This is a schematic diagram of the connecting plate of an insulation testing device for charging pile components proposed in this utility model.
[0030] Legend:
[0031] 1. Outer casing; 2. Motor; 3. Cable manifold; 4. Gear; 5. Belt; 6. Reciprocating screw; 7. Heightening block; 8. Sliding block; 9. Limiting rod; 10. Sliding ring; 11. Wire; 12. Detection needle; 13. Connecting plate; 14. Shaft; 15. Inner rod; 16. Outer rod; 17. Short rod one; 18. Short rod two; 19. Detection port cover; 20. Fast charging detection port; 21. Slow charging detection port; 22. Power switch; 23. Display screen; 24. Accessory box; 25. Button; 26. Cable clamp. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] Reference Figures 1 to 4 This utility model provides an embodiment of a charging pile component insulation testing device, comprising a housing 1. The housing 1 is the main supporting structure of the entire charging pile component insulation testing device, and is made of durable materials with good insulation properties, such as engineering plastics like ABS and PVC, or metal materials, to support the internal components and ensure safety. The housing 1 has many grooves inside, and a drive component is fixedly connected to the bottom of each groove. A cable gathering rod 3 is rotatably connected inside the drive component. The cable gathering rod 3 can orderly wind up the cables, preventing them from becoming tangled after use due to improper placement or storage, thus avoiding inconvenience during subsequent use. A sleeve wheel 4 is fixedly connected to the outer side of one end of the cable gathering rod 3. The outer side of the sleeve wheel 4 has grooves, allowing for tight coupling with subsequent components, thereby achieving smooth power transmission and ensuring smooth and noiseless operation of the testing device. A belt 5 is coupled to the outer side of the sleeve wheel 4, transmitting the rotational movement of the cable gathering rod 3 and transferring force to other components. The belt 5 is made of materials such as rubber and polyurethane, providing good tensile strength and wear resistance.
[0034] The inner side of the belt 5 is coupled to the outer side of the two pulleys 4. A riser block 7 is fixedly connected to the bottom of the groove in the outer casing 1. The riser block 7 has holes and is made of metal or sturdy plastic to ensure its load-bearing capacity and pressure resistance. Lubricating oil is applied inside the holes to reduce wear caused by the rotation of subsequent components within the holes. A reciprocating screw 6 is rotatably connected to the holes of the two riser blocks 7. The reciprocating screw 6 has a threaded design, allowing subsequent components to achieve precise linear displacement by rotating the screw, enabling reciprocating linear motion. The outer side of the reciprocating screw 6 is rotatably connected to the inner side of the holes of the two riser blocks 7 and fixedly connected to the inner side of the pulley 4. A sliding block 8 is threadedly connected to the outer side of the reciprocating screw 6, allowing it to move along the reciprocating screw 6 to complete the required reciprocating motion during testing. The sliding block 8 has an internal guide rail structure to ensure smooth movement on the reciprocating screw 6.
[0035] Limiting rods 9 are fixedly connected to the inner sides of the two raising blocks 7. The limiting rods 9 restrict the movement range of the sliding block 8, ensuring that the movement of the device does not exceed the preset range and preventing damage. A sliding ring 10 is sleeved on the outer side of the limiting rod 9. The sliding ring 10 also serves a limiting function and is connected to the sliding block 8 to prevent it from shifting or rotating during movement. The inner side of the sliding ring 10 is slidably connected to the outer side of the limiting rod 9, and the top end of the sliding ring 10 is fixedly connected to the bottom of the sliding block 8.
[0036] The drive assembly includes a motor 2, with a hub 3 rotatably connected inside the motor 2. The outer side of the hub 3 is rotatably connected to the inner side of the motor 2. A sleeve wheel 4 is fixedly connected to one end of the hub 3. The drive assembly is used to drive the hub 3 and other related mechanisms to ensure the realization of reciprocating and rotational motion during the insulation test.
[0037] Reference Figure 1 , Figure 3 and Figure 5 A wire 11 is sleeved on the outer side of the charging rod 3. The wire 11 is used to transmit current and information and can extend from the housing 1. It is wrapped around the outer side of the charging rod 3 and can be extended or retracted. The outer side of the wire 11 is slidably connected to the inner side of the sliding block 8. A detection needle 12 is fixedly connected to the top of the wire 11. The detection needle 12 is used to perform insulation and electrical tests on the charging pile. It is a metal product with an insulating coating on its surface to prevent current leakage, while also ensuring the stability and accuracy of electrical contact. A wire clamp 26 is fixedly connected to the rear side of the housing 1. The wire clamp 26 fixes the wire 11. One side of the wire clamp 26 has a certain elastic design to ensure that the wire 11 is stable and does not loosen during operation. It is made of high temperature resistant and pressure resistant material to ensure that it will not be damaged under high load conditions. The wire 11 is sleeved on the inner side of the wire clamp 26, and the outer side of the wire 11 is slidably connected to the inner side of the wire clamp 26.
[0038] A groove is formed on the outer side of the outer casing 1, and a connecting plate 13 is fixedly connected to the groove. The connecting plate 13 is used to fix subsequent components and provides connection and support. A rotating shaft 14 is fixedly connected to each end of the connecting plate 13. The rotating shaft 14 is used to support and enable the object or component to rotate or turn, preventing it from falling off or being damaged. A short rod 17 is sleeved on the outer side of the rotating shaft 14. The short rod 17 is used to transmit rotational force, and it will rotate under force, changing its angle and direction. The outer side of the short rod 17 is rotatably connected to the outer side of the rotating shaft 14. A second short rod 18 is sleeved on the outer side of the rotating shaft 14. The second short rod 18 is used to transmit rotational force, and it will rotate under force, changing its angle and direction.
[0039] The outer side of short rod 18 is rotatably connected to the outer side of shaft 14. The top of short rod 17 and the inner side of the middle section of short rod 18 are fixedly connected to shaft 14. An inner rod 15, slightly shorter in length, is rotatably connected to the outer side of shaft 14. It controls the movement angle of subsequent components, rotates under force, and transmits the rotational force. The top of short rod 18 is fixedly connected to shaft 14. An outer rod 16, slightly longer in length, is sleeved on the outer side of shaft 14. It controls the movement angle of subsequent components, rotates under force, and transmits the rotational force. The inner side of outer rod 16 is rotatably connected to the outer side of shaft 14, and the inner side of the other end of outer rod 16 is rotatably connected to the outer side of shaft 14.
[0040] A connecting plate 13 is rotatably connected to the top of the outer rod 16, and a connecting plate 13 is rotatably connected to the top of the inner rod 15. A detection port cover 19 is fixedly connected to the bottom of the connecting plate 13. The detection port cover 19 is used to protect the unused port during testing to prevent foreign objects and moisture from entering the port and affecting subsequent testing. One side of the detection port cover 19 is fixedly connected to the bottom of the connecting plate 13.
[0041] A fast charging test port 20 is fixedly connected to the left side slot of the outer casing 1, and a slow charging test port 21 is fixedly connected to the left side slot of the outer casing 1. The fast charging test port 20 and the slow charging test port 21 are used to connect different types of charging devices to perform insulation tests under different charging modes. These test ports have high electrical safety to ensure that electrical faults will not be caused by external environment or improper operation. The right side of the slow charging test port 21 is fixedly connected to the left side of the fast charging test port 20.
[0042] A display screen 23 is fixedly connected to the front of the housing 1. The display screen 23 is used to display insulation test data in real time, such as voltage, current, and insulation status, facilitating operator monitoring of the device's operation. A power switch 22 is rotatably connected to the front of the housing 1. The power switch 22 is used to control the start and stop of the equipment, ensuring that the equipment can be safely shut down when not in operation. The bottom of the display screen 23 is fixedly connected to the front of the housing 1, and the outside of the power switch 22 is rotatably connected to the front of the housing 1.
[0043] A slot is provided on the left side of the outer casing 1, and an accessory box 24 is slidably connected to the slot. The accessory box 24 is detachable, allowing users to easily replace accessories during testing. It is lined with foam for shock absorption, preventing vibration from damaging the stored replacement accessories. A button 25 is fixedly connected to the left side of the outer casing 1. The button 25 is used to control the start and stop of the motor 2, precisely controlling the length of the power cord 11. It is waterproof and dustproof, preventing external environmental influences on its performance.
[0044] Working principle: When insulation testing is required, first press the power switch 22 to start the device, then insert the charging gun into the slow charging test port 21 to perform insulation testing on its circuit. To prevent debris and moisture from entering the unconnected fast charging test port 20 during testing and affecting its subsequent testing, the connecting plate 13 fixed on the outer shell 1 and the subsequent connecting shaft 14, inner rod 15, outer rod 16 and other linkage mechanisms are rotated, so that the test port cover 19 is flipped 180 degrees to cover the surface of the fast charging test port 20 and protect the fast charging test port 20. Similarly, when the fast charging test port 20 is being tested, the test port cover 19 can be covered to protect the surface of the slow charging test port 21 through a series of linkages.
[0045] When the insulation test of the charging pile fails, the charging pile needs to be opened and a detailed inspection is carried out using the test needle 12. At this time, the test needle 12 is removed from the wire clamp 26, and the button 25 is pressed. The motor 2 starts to run. The start of the motor 2 causes the cable gathering rod 3 to rotate, extending the wire 11 wrapped on the cable gathering rod 3, thereby achieving the purpose of extending the wire 11, saving the space occupied by the wire 11, and preventing it from being messy and tangled. After the test is completed, the button 25 can be pressed again to reverse the motor 2 and retract the wire 11. In this way, the testing device is portable and does not require carrying extra wires 11, so that the wires 11 are not messy and not exposed.
[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A charging pile assembly insulation test device comprising a housing (1), characterized in that: The inside of the shell (1) is provided with a plurality of grooves, the bottom of the shell (1) groove is fixedly connected with a drive assembly, the inside of the drive assembly is rotatably connected with a collection rod (3), one end of the collection rod (3) is fixedly connected with a sleeve wheel (4), the outer side of the sleeve wheel (4) is coupled with a belt (5), the inner side of the belt (5) is coupled with the outer side of two sleeve wheels (4), the bottom of the shell (1) groove is fixedly connected with a raised block (7), the raised block (7) is provided with a hole, the hole of two raised blocks (7) is rotatably connected with a reciprocating screw rod (6), the outer side of the reciprocating screw rod (6) is rotatably connected with the inner side of two raised blocks (7), the outer side of the reciprocating screw rod (6) is fixedly connected with the inner side of the sleeve wheel (4), the outer side of the reciprocating screw rod (6) is threadedly connected with a sliding block (8), the inner side of two raised blocks (7) is fixedly connected with a limiting rod (9), the outer side of the limiting rod (9) is sleeved with a sliding ring (10), the inner side of the sliding ring (10) is slidably connected with the outer side of the limiting rod (9).
2. The charging pile assembly insulation test device according to claim 1, characterized in that: The drive assembly comprises a motor (2), the inside of the motor (2) is rotatably connected with a collection rod (3), the outer side of the collection rod (3) is rotatably connected with the inside of the motor (2), one end of the collection rod (3) is fixedly connected with a sleeve wheel (4).
3. The charging pile assembly insulation test device according to claim 1, characterized in that: The top end of the sliding ring (10) is fixedly connected with the bottom of the sliding block (8), the outer side of the collection rod (3) is sleeved with a wire (11), the inner side of the wire (11) is slidably connected with the outer side of the sliding block (8), the top end of the wire (11) is fixedly connected with a detection needle (12), the rear side of the shell (1) is fixedly connected with a wire clamp (26), the inner side of the wire clamp (26) is sleeved with a wire (11), the outer side of the wire (11) is slidably connected with the inner side of the wire clamp (26).
4. The charging pile assembly insulation test device according to claim 1, characterized in that: The outer side of the shell (1) is provided with a groove, the groove of the shell (1) is fixedly connected with a connecting plate (13), the both ends of the connecting plate (13) are respectively fixedly connected with a rotating shaft (14), the outer side of the rotating shaft (14) is sleeved with a short rod one (17), the outer side of the short rod one (17) is rotatably connected with the outer side of the rotating shaft (14), the outer side of the rotating shaft (14) is sleeved with a short rod two (18), the outer side of the short rod two (18) is rotatably connected with the outer side of the rotating shaft (14), the top end of the short rod one (17) and the inner side of the middle segment of the short rod two (18) are fixedly connected with a rotating shaft (14), the outer side of the rotating shaft (14) is rotatably connected with an inner rod (15), the top end of the short rod two (18) is fixedly connected with a rotating shaft (14), the outer side of the rotating shaft (14) is sleeved with an outer rod (16), the inner side of the outer rod (16) is rotatably connected with the outer side of the rotating shaft (14), the other end of the outer rod (16) is rotatably connected with the outer side of the rotating shaft (14).
5. The charging pile assembly insulation test device according to claim 4, characterized in that: The top end of the outer rod (16) is rotationally connected with a connecting plate (13), the top end of the inner rod (15) is rotationally connected with a connecting plate (13), the bottom of the connecting plate (13) is fixedly connected with a detection port cover (19), one side of the detection port cover (19) is fixedly connected to the bottom of the connecting plate (13).
6. The charging pile assembly insulation test device according to claim 1, characterized in that: The left side groove of the shell (1) is fixedly connected with a fast charging detection port (20), the left side groove of the shell (1) is fixedly connected with a slow charging detection port (21), and the right side of the slow charging detection port (21) is fixedly connected to the left side of the fast charging detection port (20).
7. The charging pile assembly insulation test device according to claim 1, characterized in that: The front side of the shell (1) is fixedly connected with a display screen (23), the front side of the shell (1) is rotationally connected with a power switch (22), the bottom of the display screen (23) is fixedly connected to the front side of the shell (1), and the outer side of the power switch (22) is rotationally connected to the front side of the shell (1).
8. The charging pile assembly insulation test device according to claim 1, characterized in that: The left side of the shell (1) is provided with a groove, the left side of the shell (1) is slidably connected with a accessory box (24), and the left side of the shell (1) is fixedly connected with a button (25).