Equipment for carrying out direct current insulation test on electrical equipment

Abstract

The utility model discloses a device for carrying out a direct current insulation test on electrical equipment, which comprises a voltage-multiplying cylinder, and the surface of the voltage-multiplying cylinder is provided with a power connection port. The adjusting ring is rotated by pulling the handle, at the moment, the adjusting ring can descend at the position of a threaded layer arranged on the surface of the voltage-multiplying barrel, meanwhile, the main supporting rod is driven to rotate by a certain angle along a top-layer round hole, at the moment, the auxiliary supporting rod can rotate and unfold around a bottom-layer round hole, and the receding hole can slide on the surface of the main supporting rod to support the main supporting rod; when the main supporting rod rotates around the receding hole, the top of the auxiliary supporting rod rotates around the receding hole synchronously, auxiliary supporting is conducted on the auxiliary supporting rod till the main supporting rod stably supports the voltage-multiplying barrel, the situation that the supporting structure needs to be reinstalled and disassembled every time can be avoided through rapid opening or storage of the main supporting rod and the auxiliary supporting rod, and compared with other storage supporting structures, the supporting structure is convenient to use. The device can be rapidly opened in a linkage mode for supporting, supporting does not need to be opened one by one, efficiency is improved, and flexibility and reliability of the device are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of direct current insulation testing, in particular to a device for performing direct current insulation testing on electrical equipment. Background Art

[0002] With the development of power engineering, some power-related equipment has also been manufactured one after another, such as zinc oxide lightning arresters, power cables, transformers, generators and other high-voltage electrical equipment. DC high-voltage generators are tools specifically used to perform DC withstand voltage tests on these high-voltage electrical equipment to detect the electrical insulation strength and leakage current of power devices. During the use of the voltage doubler on the DC high-voltage generator, the voltage doubler needs to be placed vertically, but most of the existing voltage doublers are provided with supporting feet at the bottom to assist the voltage doubler to stand upright. After use, the supporting feet often need to be removed and placed separately, and then installed again when used next time. Although some devices have storage supporting feet, they are still troublesome to deploy during use and need to be placed one by one, which is not convenient to use and affects work efficiency. For this reason, we propose a device for performing DC insulation tests on electrical equipment. Utility Model Content

[0003] The utility model aims to solve one of the technical problems existing in the prior art or related technology.

[0004] To this end, the technical solution adopted in this utility model is:

[0005] A device for performing DC insulation test on electrical equipment comprises a voltage multiplier cylinder, the surface of which is provided with an electrical connection port, a microammeter is movably installed on the voltage multiplier cylinder, a threaded layer is provided in the middle of the voltage multiplier cylinder, an adjustment ring is threadedly connected to the surface of the threaded layer, a first connecting piece is clamped on the surface of the adjusting ring, a handle is fixedly installed on the top of the adjusting ring, a top circular hole is provided on the surface of the first connecting piece, a main support rod is fitted inside the top circular hole, a first core shaft is sleeved inside the top circular hole, a sliding piece is slidably connected in the middle of the main support rod, a clearance hole is provided on the surface of the sliding piece, an auxiliary support rod is fitted inside the clearance hole, a second core shaft is sleeved inside the clearance hole, the bottom bolt of the voltage multiplier cylinder is connected to the second connecting piece, a bottom circular hole is provided on the surface of the second connecting piece, a third core shaft is sleeved inside the bottom circular hole.

[0006] Preferably, a cable is fixedly connected to the middle of the power port, and one end of the cable is fixedly connected to a control box.

[0007] Preferably, an upper sleeve is fixedly connected to the pressure multiplier cylinder near the top of the threaded layer, and a lower sleeve is fixedly connected to the pressure multiplier cylinder near the bottom of the threaded layer.

[0008] Preferably, a first limiting hole is formed at the top of the main support rod, and the interior of the first limiting hole is sleeved with the first core shaft.

[0009] Preferably, a second limiting hole is formed at the top of the auxiliary support rod, and the interior of the second limiting hole is sleeved with the second core shaft.

[0010] Preferably, a third limiting hole is formed at the bottom of the auxiliary support rod, and the interior of the third limiting hole is sleeved with the third core shaft.

[0011] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0012] In the utility model, the adjusting ring is rotated by pulling the handle, and the adjusting ring will drop to the position of the threaded layer opened on the surface of the pressure-doubling cylinder, and at the same time drive the main support rod to rotate a certain angle along the top circular hole. At this time, the auxiliary support rod will rotate and unfold around the bottom circular hole, and the clearance hole will slide on the surface of the main support rod to support the main support rod, and the top of the auxiliary support rod will rotate around the clearance hole synchronously to provide auxiliary support to the auxiliary support rod until the main support rod stably supports the pressure-doubling cylinder. Through the rapid opening or storage of the main and auxiliary support rods, the need to reinstall and disassemble the support structure each time can be avoided. Compared with other storage support structures, the present device can quickly realize the linkage opening for support, without the need to open the supports one by one, thereby improving efficiency and realizing the flexibility and reliability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the utility model;

[0014] Figure 2 This is a schematic diagram of a main support rod according to an embodiment of the utility model;

[0015] Figure 3 This is a schematic diagram of a pressure multiplier cylinder according to an embodiment of the utility model;

[0016] Figure 4 This is a schematic diagram of an adjustment ring according to an embodiment of the utility model;

[0017] Figure 5 This is a schematic diagram of a first connecting member according to an embodiment of the utility model;

[0018] Figure 6 This is a schematic diagram of a second connecting member according to an embodiment of the present utility model.

[0019] Reference numerals:

[0020] 1. Voltage multiplier cylinder; 2. Power connection port; 3. Cable; 4. Control box; 5. Microammeter; 6. Upper collar; 7. Threaded layer; 8. Lower collar; 9. Adjusting ring; 10. First connecting piece; 11. Handle; 12. Top layer round hole; 13. Main support rod; 1301. First limiting hole; 14. First mandrel; 15. Sliding piece; 16. Relief hole; 17. Auxiliary support rod; 1701. Second limiting hole; 1702. Third limiting hole; 18. Second mandrel; 19. Second connecting piece; 20. Bottom layer round hole; 21. Third mandrel. Detailed implementation manners

[0021] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with the specific implementation manners and with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present utility model and the features in the embodiments may be combined with each other.

[0022] The following describes some embodiments of the present utility model with reference to the accompanying drawings, which provide a device for performing a DC insulation test on electrical equipment.

[0023] Embodiment:

[0024] Combined with Figure 1-6 As shown in the figure, the present utility model provides a device for performing a DC insulation test on electrical equipment, including a voltage multiplier cylinder 1. A power connection port 2 is provided on the surface of the voltage multiplier cylinder 1. A cable 3 is fixedly connected in the middle of the power connection port 2. One end of the cable 3 is fixedly connected to a control box 4. The control box 4 mainly transmits commands and electrical energy to the voltage multiplier cylinder 1 through the cable 3 for detecting electrical equipment. In addition, when the device is not in use, the cable 3 and the voltage multiplier cylinder 1 can be manually disassembled and the voltage multiplier cylinder 1 and the cable 3 can be placed inside the control box 4 for storage to avoid inconvenience in carrying. A microammeter 5 is movably installed on the voltage multiplier cylinder 1 to display the detection data for convenient observation and recording.

[0025] Among them, the microammeter 5 can be disassembled for easy carrying. A threaded layer 7 is provided in the middle of the voltage multiplier cylinder 1. An upper ring 6 is fixedly sleeved near the top position of the threaded layer 7 of the voltage multiplier cylinder 1, and a lower ring 8 is fixedly sleeved near the bottom position of the threaded layer 7 of the voltage multiplier cylinder 1. The upper ring 6 and the lower ring 8 are respectively sleeved on the two ends of the threaded layer 7 to limit the threaded position of the threaded layer 7 to prevent parts from slipping and falling off in the threaded layer 7, which makes it difficult to support the voltage multiplier cylinder 1. An adjusting ring 9 is threadedly connected to the surface of the threaded layer 7. When the adjusting ring 9 is rotated, the adjusting ring 9 can rise or fall on the surface of the threaded layer 7 to adjust the position and realize the linkage with subsequent parts. A first connecting piece 10 is clamped on the surface of the adjusting ring 9. Since a clamping ring sleeve is provided on the outer side of the adjusting ring 9, the first connecting piece 10 is clamped, so that when the adjusting ring 9 rotates and moves, it will synchronously bring The first connecting member 10 is moved up or down, and a handle 11 is fixedly installed on the top of the adjusting ring 9. The function of the handle 11 is to facilitate the staff to rotate the adjusting ring 9 to achieve quick position adjustment. A top circular hole 12 is provided on the surface of the first connecting member 10, and the interior of the top circular hole 12 is fitted with a main support rod 13, and the interior of the top circular hole 12 is sleeved with a first core shaft 14. A first limiting hole 1301 is provided on the top of the main support rod 13, and the interior of the first limiting hole 1301 is sleeved with the first core shaft 14, that is, under the action of the first core shaft 14, the top circular hole 12 and the first limiting hole 1301 are sleeved and limited by the first core shaft 14, and the main support rod 13 can rotate around the first core shaft 14 by a certain angle, and since there are four main support rods 13, the multiplier cylinder 1 can be better fixed on the ground to avoid falling due to shaking.

[0026] Furthermore, a sliding member 15 is slidably connected in the middle of the main support rod 13, and the sliding member 15 can slide freely within a certain distance on the surface of the main support rod 13, so that the linked parts will not get stuck when the main support rod 13 is adjusted. A clearance hole 16 is provided on the surface of the sliding member 15, and an auxiliary support rod 17 fits inside the clearance hole 16. A second core shaft 18 is sleeved inside the clearance hole 16, and a second limiting hole 1701 is provided on the top of the auxiliary support rod 17. The inside of the second limiting hole 1701 is sleeved with the second core shaft 18. The principle is the same as the connection method between the main support rod 13 and the top circular hole 12 mentioned above. The auxiliary support rod 17 is consistent with the second core shaft 18, and the auxiliary support rod 17 can rotate under the action of the second core shaft 18. The bottom bolt of the pressure multiplier cylinder 1 is connected with the second connecting piece 19. The surface of the second connecting piece 19 is provided with a bottom circular hole 20. The inside of the bottom circular hole 20 is sleeved with the third core shaft 21. The bottom of the auxiliary support rod 17 is provided with a third limiting hole 1702, and the inside of the third limiting hole 1702 is sleeved with the third core shaft 21. The principle is consistent with the connection method of the top circular hole 12 and the main support rod 13, that is, the auxiliary support rod 17 can rotate under the action of the third limiting hole 1702 to provide auxiliary support to the main support rod 13.

[0027] Working principle and usage process of the present utility model: First, the staff needs to hold the handle 11 and rotate around the voltage multiplier cylinder 1, that is, the adjusting ring 9 will displace at the position of the thread layer 7 opened in the middle of the voltage multiplier cylinder 1. At this time, under the action of external force, the handle 11 drives the adjusting ring 9 to rotate and descend by a certain angle. Synchronously, the main support rod 13 will be driven to displace downward. At this time, the main support rod 13 will rotate by a certain angle around the first core shaft 14 until the first connecting piece 10 stops descending. And while the main support rod 13 is descending, the third core shaft 21 sleeved on the surface of the main support rod 13 starts to slide. Limited by the third core shaft 21, at this time, the auxiliary support rod 17 rotates by a certain angle, and synchronously the second limiting hole 1701 rotates by a certain angle around the third core shaft 21, so that the main support rod 13 stably supports the voltage multiplier cylinder 1 on the ground.

[0028] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A device for performing a DC insulation test on an electrical device, comprising a voltage multiplier (1), characterized in that: The surface of the voltage multiplier cylinder (1) is provided with an electrical connection port (2), a microammeter (5) is movably installed on the voltage multiplier cylinder (1), a threaded layer (7) is provided in the middle of the voltage multiplier cylinder (1), an adjustment ring (9) is threadedly connected to the surface of the threaded layer (7), a first connecting member (10) is clamped on the surface of the adjustment ring (9), a handle (11) is fixedly installed on the top of the adjustment ring (9), a top circular hole (12) is provided on the surface of the first connecting member (10), a main support rod (13) is fitted inside the top circular hole (12), and the top circular hole (12) is provided with a plurality of threaded holes (13) and a plurality of threaded holes (13) are provided on the top circular hole (12). The first core shaft (14) is sleeved inside the main support rod (12), a sliding member (15) is slidably connected in the middle of the main support rod (13), a clearance hole (16) is provided on the surface of the sliding member (15), an auxiliary support rod (17) is fitted inside the clearance hole (16), a second core shaft (18) is sleeved inside the clearance hole (16), the bottom bolt of the multiplier cylinder (1) is connected to a second connecting member (19), a bottom circular hole (20) is provided on the surface of the second connecting member (19), and a third core shaft (21) is sleeved inside the bottom circular hole (20).

2. A device for performing a DC insulation test on an electrical device according to claim 1, characterized in that: A cable (3) is fixedly connected in the middle of the power connection port (2), and one end of the cable (3) is fixedly connected to a control box (4).

3. The device for performing DC insulation test on electrical equipment according to claim 1, characterized in that: An upper sleeve (6) is fixedly sleeved on the pressure multiplier cylinder (1) near the top of the threaded layer (7), and a lower sleeve (8) is fixedly sleeved on the pressure multiplier cylinder (1) near the bottom of the threaded layer (7).

4. The device for performing DC insulation test on electrical equipment according to claim 1, characterized in that: A first limiting hole (1301) is provided at the top of the main support rod (13), and the interior of the first limiting hole (1301) is sleeved with the first core shaft (14).

5. The device for performing DC insulation test on electrical equipment according to claim 1, characterized in that: A second limiting hole (1701) is provided at the top of the auxiliary support rod (17), and the interior of the second limiting hole (1701) is sleeved with the second core shaft (18).

6. The device for performing DC insulation test on electrical equipment according to claim 1, characterized in that: A third limiting hole (1702) is provided at the bottom of the auxiliary support rod (17), and the interior of the third limiting hole (1702) is sleeved with the third core shaft (21).

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