Portable direct-current high-voltage generator

Abstract

The utility model provides a portable direct-current high-voltage generator, which relates to the technical field of high-voltage test equipment and comprises a box body, a voltage-multiplying cylinder, a control host, a microammeter and a cable are arranged in the box body, a base is mounted at the lower end of the voltage-multiplying cylinder in a sliding manner, a plurality of guide holes are uniformly distributed in the side wall of the base, and a plurality of supporting legs are mounted on the base in a sliding manner. A guide block is fixedly installed at one end of each supporting leg, a through groove is formed in each guide block, the other end of each supporting leg penetrates through the corresponding guide hole and extends out of the base, a compression spring is arranged between each guide block and the inner wall of the base, and a push rod is fixedly installed at the bottom of the pressure-multiplying cylinder. According to the pressure-multiplying barrel, the supporting legs can automatically stretch out of the base through the gravity of the pressure-multiplying barrel and the matching of the guide rollers and the guide grooves, the pressure-multiplying barrel can be rapidly and stably placed, and the supporting legs can be automatically folded through the arrangement of the compression springs.

Description

Technical Field

[0001] This utility model relates to the field of high voltage testing equipment technology, and in particular to a portable DC high voltage generator. Background Technology

[0002] Portable DC high-voltage generators are mainly used in the power departments of power, mining, and metallurgical enterprises to conduct DC withstand voltage tests on high-voltage electrical equipment such as zinc oxide surge arresters, power cables, and transformers. Existing portable DC high-voltage generators include a housing, which houses a voltage multiplier cylinder, the generator body, a microammeter, and cables. Most existing voltage multiplier cylinders have a thin cylindrical structure with a small bottom support area. When the voltage multiplier cylinder is removed and placed on the ground, it is easy for it to tip over. To improve the stability of the voltage multiplier cylinder, existing voltage multiplier cylinders have several support legs that rotate at the bottom. Before placing the voltage multiplier cylinder, the support legs are rotated out and then placed on the ground. However, after each test, the support legs must be retracted before it can be placed back into the housing. When the working position needs to be frequently moved, the support legs need to be manually retracted and extended frequently, which is cumbersome and affects the testing efficiency.

[0003] Therefore, a portable DC high voltage generator is needed to solve the above problems. Utility Model Content

[0004] This utility model proposes a portable DC high voltage generator. Through the cooperation of the multiplier cylinder's own gravity, guide rollers, and guide grooves, the support legs automatically extend from the base, realizing the rapid and stable placement of the multiplier cylinder. The support legs are automatically retracted through the setting of compression springs.

[0005] The technical solution of this utility model is implemented as follows:

[0006] A portable DC high-voltage generator includes a housing with a cover hinged to one side. Inside the housing are a voltage multiplier, a control unit, a microammeter, and cables. A base is slidably mounted vertically on the lower end of the voltage multiplier. Several guide holes are evenly distributed circumferentially on the side wall of the base. Several support legs are slidably mounted horizontally on the base. A guide block is fixedly mounted at one end of each support leg. The guide blocks are all located inside the base, and each guide block has a through groove. The other end of each support leg passes through the corresponding guide hole and extends out of the base. A compression spring is provided between each guide block and the inner wall of the base, and each compression spring is respectively sleeved on the corresponding support leg. Several push rods are fixedly mounted at the bottom of the voltage multiplier for pushing the corresponding guide blocks towards the guide holes. A guide roller is rotatably mounted on each push rod, and each guide roller is horizontally positioned and extends into the corresponding through groove.

[0007] As a preferred technical solution, each of the through slots includes a vertical slot, an inclined slot and a horizontal slot connected in sequence, the vertical slot is disposed above the horizontal slot, and each of the push rods is vertically disposed.

[0008] As a preferred technical solution, the box body is provided with an inner liner, the inner liner is provided with a placement groove adapted to the pressure multiplier cylinder, the placement groove is provided with a top protrusion adapted to the base, and the placement groove is provided with a limiting groove for limiting the support leg.

[0009] As a preferred technical solution, each of the push rods has a support portion at its lower end, and when the support leg extends out of the base, the support portion abuts against the bottom of the base.

[0010] As a preferred technical solution, the outer circumferential surface of the pressure multiplier cylinder is provided with two guide protrusions, and the inner circumferential surface of the base is provided with two guide grooves vertically arranged. The two guide grooves are symmetrically arranged, and each guide protrusion is slidably installed in the corresponding guide groove.

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

[0012] Since the portable DC high voltage generator includes a voltage multiplier, during the placement of the voltage multiplier, the bottom of the base is in contact with the ground. Under the action of gravity, the bottom of the voltage multiplier moves relative to the base in the vertical direction, the guide roller moves downward, and the guide block moves towards the guide hole under the action of the guide groove. That is, the support leg extends out of the guide hole and supports the voltage multiplier. In this utility model, through the cooperation of the voltage multiplier itself, the guide roller and the guide groove, the support leg automatically extends out of the base, realizing the rapid and stable placement of the voltage multiplier, reducing the preparation time required in the early stage of the test and improving the test efficiency.

[0013] When the test is completed and the pressure multiplier needs to be stored in the box, the pressure multiplier can be manually lifted. The guide block is not affected by the weight of the pressure multiplier. Under the action of the compression spring, the guide block returns to its original position, and the support leg retracts into the base, so that the pressure multiplier can be stored in the box. In this utility model, the automatic retraction of the support leg is realized by the setting of the compression spring. The operation is simple and makes the storage of the pressure multiplier more convenient.

[0014] Because the guide block is provided with a guide groove, which includes a vertical groove, an inclined groove and a horizontal groove connected in sequence, when the lower end of the pressure multiplier cylinder extends into the base under the action of gravity, the guide roller moves in the vertical direction and moves from the vertical groove to the inclined groove, and finally moves into the horizontal groove, so that the guide roller pushes the guide block to move in the direction of the guide hole, thereby realizing the automatic extension of the support leg from the base.

[0015] Because a push rod is fixedly installed at the bottom of the pressure multiplier, and a support is provided at the lower end of the push rod, when the pressure multiplier is placed on the ground, the support leg extends under the cooperation of the pressure multiplier's own weight, guide roller and guide groove. At this time, the support abuts against the bottom of the base. The setting of the support provides a lower limit for the displacement of the pressure multiplier in the vertical direction, making the pressure multiplier placed on the ground more stable. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the pressure multiplier cylinder.

[0019] Figure 3 Reference image showing the supporting leg extended;

[0020] Figure 4 This is a schematic diagram of the base structure;

[0021] Figure 5 This is a top view of the pressure multiplier cylinder;

[0022] Figure 6 This is a schematic diagram of the limiting groove.

[0023] The components are as follows: 1. Box body; 2. Box cover; 3. Pressure multiplier cylinder; 4. Control host; 5. Microammeter; 6. Cable; 7. Base; 8. Guide hole; 9. Support leg; 10. Guide block; 11. Through groove; 12. Compression spring; 13. Push rod; 14. Guide roller; 15. Vertical groove; 16. Inclined groove; 17. Horizontal groove; 18. Liner; 19. Placement groove; 20. Top protrusion; 21. Limiting groove; 22. Support part; 23. Guide protrusion; 24. Guide groove; 25. Bottom support foot; 26. Ground. Detailed Implementation

[0024] 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.

[0025] like Figures 1-6 As shown, the portable DC high-voltage generator includes a housing 1, with a cover 2 hinged to one side of the housing 1. Inside the housing 1 are a voltage multiplier cylinder 3, a control unit 4, a microammeter 5, and cables 6. A base 7 is slidably mounted vertically on the lower end of the voltage multiplier cylinder 3. Several guide holes 8 are slidably mounted horizontally on the side wall of the base 7. Several support legs 9 are evenly distributed circumferentially on the base 7. A guide block 10 is fixedly mounted at one end of each support leg 9. The guide blocks 10 are all located inside the base 7. Each of the 0 has a through groove 11. The other end of each support leg 9 passes through the corresponding guide hole 8 and extends out of the base 7. A compression spring 12 is provided between each guide block 10 and the inner wall of the base 7. Each compression spring 12 is respectively sleeved on the corresponding support leg 9. Several push rods 13 for pushing the corresponding guide block 10 toward the guide hole 8 are fixedly installed at the bottom of the pressure multiplier cylinder 3. A guide roller 14 is rotatably installed on each push rod 13. Each guide roller 14 is horizontally set and extends into the corresponding through groove 11.

[0026] Each through slot 11 includes a vertical slot 15, an inclined slot 16 and a horizontal slot 17 connected in sequence. The vertical slot 15 is located above the horizontal slot 17, and each push rod 13 is vertically arranged.

[0027] In addition, the housing 1 is provided with an inner liner 18, the inner liner 18 is provided with a placement groove 19 adapted to the pressure multiplier cylinder 3, the placement groove 19 is provided with a top protrusion 20 adapted to the base 7, and the placement groove 19 is provided with a limiting groove 21 for limiting the support leg 9.

[0028] In this utility model, four support legs 9 are provided, such as... Figure 6 As shown, there are four corresponding limiting grooves 21, three of which are located on the side wall and bottom of the placement groove 19, and one of which is located on the box cover 2.

[0029] In this utility model, when the pressure multiplier 3 is located in the placement groove 19, the base 7 rests against the top protrusion 20. At this time, the support leg 9 extends out from the base 7 and is limited by the limiting groove 21, so that the pressure multiplier 3 is in a limited state in the placement groove 19, thus preventing the pressure multiplier 3 from shaking and shifting during transportation.

[0030] like Figure 3 As shown, each push rod 13 has a support part 22 at its lower end. When the support leg 9 extends out of the base 7, the support part 22 abuts against the bottom of the base 7, and at this time the bottom surface of the base 7 abuts against the ground 26.

[0031] Secondly, two guide protrusions 23 are provided on the outer circumferential surface of the pressure multiplier cylinder 3, and two guide grooves 24 are vertically provided on the inner circumferential surface of the base 7. The two guide grooves 24 are symmetrically arranged, and each guide protrusion 23 is slidably installed in the corresponding guide groove 24.

[0032] Each support leg 9 has its free end passing through a corresponding guide hole 8 and is fixedly mounted with a bottom support foot 25.

[0033] The weight of the pressure multiplier 3 can cause the compression spring 12 to deform.

[0034] In summary, this utility model utilizes the weight of the pressure multiplier cylinder itself, the cooperation of the guide roller and the guide groove to enable the support leg to automatically extend from the base, thus achieving rapid and stable placement of the pressure multiplier cylinder. The automatic retraction of the support leg is achieved through the setting of the compression spring.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 portable DC high-voltage generator, comprising a housing, wherein a housing cover is hinged to one side of the housing, characterized in that, The housing contains a pressure multiplier cylinder, a control unit, a microammeter, and cables. A base is slidably mounted vertically on the lower end of the pressure multiplier cylinder. Several guide holes are evenly distributed circumferentially on the side wall of the base. Several support legs are slidably mounted horizontally on the base. A guide block is fixedly mounted at one end of each support leg. Each guide block is located inside the base and has a through groove. The other end of each support leg passes through the corresponding guide hole and extends out of the base. A compression spring is provided between each guide block and the inner wall of the base, and each compression spring is sleeved on the corresponding support leg. Several push rods are fixedly mounted at the bottom of the pressure multiplier cylinder to push the corresponding guide blocks closer to the guide holes. A guide roller is rotatably mounted on each push rod, and each guide roller is horizontally positioned and extends into the corresponding through groove.

2. The portable DC high-voltage generator according to claim 1, characterized in that, Each of the aforementioned through slots includes a vertical slot, an inclined slot, and a horizontal slot connected in sequence, with the vertical slot positioned above the horizontal slot, and each of the aforementioned push rods being vertically positioned.

3. The portable DC high-voltage generator according to claim 1, characterized in that, The box is provided with an inner liner, and the inner liner is provided with a placement groove adapted to the pressure multiplier cylinder. The placement groove is provided with a top protrusion adapted to the base, and the placement groove is provided with a limiting groove for limiting the support leg.

4. The portable DC high-voltage generator according to claim 1, characterized in that, Each of the push rods has a support at its lower end, and when the support leg extends out of the base, the support abuts against the bottom of the base.

5. The portable DC high-voltage generator according to claim 1, characterized in that, Two guide protrusions are provided on the outer circumferential surface of the pressure multiplier cylinder, and two guide grooves are vertically provided on the inner circumferential surface of the base. The two guide grooves are symmetrically arranged, and each guide protrusion is slidably installed in the corresponding guide groove.

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