Power frequency magnetic field antenna support device and power frequency magnetic field test system

Abstract

The utility model discloses a power frequency magnetic field antenna support device and a power frequency magnetic field testing system, and relates to the technical field of vehicle part testing, and the support device comprises a pedestal which is provided with two first adjusting assemblies and is used for adjusting the height of a power frequency magnetic field antenna; the lifting direction of the first adjusting assembly is perpendicular to the surface of the base. The first adjusting assembly is provided with a first connecting end; each second adjusting assembly is provided with a second connecting end and a third connecting end; the second connecting ends are connected with the first connecting ends in a one-to-one correspondence manner; a mounting space is formed between the two third connecting ends and is used for mounting a power frequency magnetic field antenna; the second adjusting assembly is used for driving the power frequency magnetic field antenna to rotate around the first axis to a required angle; the first axis is an extension line of a connecting line of the two third connecting ends, is perpendicular to the lifting direction of the first adjusting assembly and is parallel to the surface of the base. The overall movement range of the support is enlarged, different test arrangement requirements are better met, and the test efficiency is effectively improved.

Description

Technical Field

[0001] The present application generally relates to the technical field of vehicle component testing, and specifically relates to an industrial frequency magnetic field antenna bracket device and an industrial frequency magnetic field testing system. Background Art

[0002] In the field of automotive parts testing, power frequency magnetic field antennas are mainly used to detect the anti-interference ability and electromagnetic compatibility (EMC) of automotive electronic components in a power frequency (usually 50Hz or 60Hz, depending on the local power grid standard) magnetic field environment.

[0003] During use, existing power-frequency magnetic field antennas must be mounted on a bracket, and the sample under test must be placed on a test table according to the test layout requirements. Because different test samples have different test layout requirements, a single-size traditional test table and bracket cannot meet these diverse test layout requirements, limiting their scope of use and reducing test efficiency. Therefore, we propose a power-frequency magnetic field antenna bracket device and power-frequency magnetic field test system to address these issues. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a power frequency magnetic field antenna bracket device and a power frequency magnetic field testing system that improve test efficiency, have strong versatility, save manpower and are easy to operate.

[0005] In a first aspect, the present application provides a power frequency magnetic field antenna support device, comprising:

[0006] A base, wherein the base is provided with two first adjustment components for adjusting the height of the power frequency magnetic field antenna; the lifting direction of the first adjustment components is perpendicular to the surface of the base; the first adjustment components have a first connection end;

[0007] Two second adjustment components, each having a second connection end and a third connection end; the second connection end is connected to the first connection end in a one-to-one correspondence; an installation space is formed between the two third connection ends for installing the power frequency magnetic field antenna; the second adjustment component is used to drive the power frequency magnetic field antenna to rotate around the first axis to a desired angle; the first axis is an extension line of the line connecting the two third connection ends, which is arranged perpendicular to the lifting direction of the first adjustment component and parallel to the base surface.

[0008] According to the technical solution provided in this application, the first adjustment component includes:

[0009] A support rod, the support rod being vertically arranged on the base; the support rod being provided with a plurality of mounting through holes evenly distributed along its axis;

[0010] An adjusting sleeve, the adjusting sleeve being sleeved on the support rod; an end of the adjusting sleeve relatively far from the support rod being the first connecting end; a fixing through hole being formed on a side wall of the adjusting sleeve relatively close to the support rod;

[0011] The locking pin passes through the fixing through hole and the installation through hole to lock the current height of the power frequency magnetic field antenna.

[0012] According to the technical solution provided in this application, the first adjustment component includes:

[0013] A telescopic rod, the telescopic rod being vertically arranged on the base; a side wall of the telescopic rod away from the base being provided with an elastic protrusion;

[0014] a plurality of telescopic tubes, each of which is sleeved on the telescopic rod; all of the telescopic tubes are coaxially arranged with the telescopic rod, and the diameters of all of the telescopic tubes increase from a side relatively close to the telescopic rod to a side away from the telescopic rod; a side wall of the telescopic tube away from the base is provided with an elastic protrusion, and a side wall of the telescopic tube close to the base is provided with a mating hole; an end of the telescopic tube relatively far from the telescopic rod and away from the base is the first connecting end;

[0015] By moving the telescopic tube along the axial direction of the telescopic rod, the elastic protrusion can be engaged with the corresponding matching hole, thereby adjusting the height of the power frequency magnetic field antenna.

[0016] According to the technical solution provided in this application, the second adjustment component includes:

[0017] a chassis, the chassis being arranged on the first connection end; the second connection end being formed on the bottom surface of the chassis;

[0018] Two support plates, each of which is vertically arranged on the chassis; a receiving space is formed between the two support plates for receiving a mounting rod; one end of the mounting rod abuts against the chassis, and the other end serves as the third connecting end; a fixing hole is provided on a side of the mounting rod close to the chassis;

[0019] A fixed chute, the fixed chute is provided on the support plate, the fixed chute is arc-shaped and two fixed chute are provided corresponding to the fixed hole;

[0020] A fixing pin passes through the fixing slot and the fixing hole to fix the current angle of the power frequency magnetic field antenna.

[0021] According to the technical solution provided in the present application, a limiting groove is provided on a surface of the chassis away from the first adjustment assembly, and the limiting groove abuts against an end of the mounting rod close to the chassis.

[0022] According to the technical solution provided in the present application, an auxiliary support member is provided in the fixed slide groove to assist the fixed pin in limiting the relative position of the mounting rod.

[0023] According to the technical solution provided in this application, the bottom surface of the base is provided with a plurality of evenly arranged rollers.

[0024] In a second aspect, the present application provides a power frequency magnetic field testing system, comprising: a test table and the above-mentioned power frequency magnetic field antenna support device;

[0025] The test table is used to place the sample to be tested, and the power frequency magnetic field antenna support device is used in conjunction with the test table to adjust the position of the power frequency magnetic field antenna, thereby testing the performance of the sample to be tested in a power frequency magnetic field environment.

[0026] It can be seen from the above technical solution that this application has at least the following beneficial effects:

[0027] The present application discloses a power frequency magnetic field antenna bracket device, which includes: a base, on which two first adjustment components are provided, which are used to adjust the height of the power frequency magnetic field antenna, and the first adjustment component has a first connection end; the bracket device also includes: two second adjustment components, the second adjustment components have a second connection end and a third connection end, wherein the second connection end and the first connection end are connected one-to-one, and an installation space is formed between the two third connection ends for installing the power frequency magnetic field antenna; the second adjustment component is used to drive the power frequency magnetic field antenna to rotate around a first axis to a desired angle, this first axis is an extension line of the line connecting the two third connection ends, and it is arranged perpendicular to the lifting direction of the first adjustment component and parallel to the base surface.

[0028] The present application designs a first adjustment component and a second adjustment component for use together on the base, and an industrial frequency magnetic field antenna is installed between the two second adjustment components. The first adjustment component is used to adjust the industrial frequency magnetic field antenna to the required height, and the second adjustment component is used to drive the industrial frequency magnetic field antenna to rotate to the required angle, so that the industrial frequency magnetic field antenna has the function of free adjustment in width and height, thereby increasing the overall range of movement of the bracket, being more adaptable to different test layout requirements, and being easy to operate, effectively improving test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Other features, objects and advantages of the present application will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings.

[0030] Figure 1 This is a schematic diagram of the first structure of the power frequency magnetic field antenna bracket device.

[0031] Figure 2 for Figure 1 Enlarged view of part A.

[0032] Figure 3 It is a schematic diagram of the front view structure of the second adjustment component.

[0033] Figure 4 Schematic diagram of the top structure of the second adjustment component.

[0034] Figure 5 This is a schematic diagram of the second structure of the power frequency magnetic field antenna bracket device.

[0035] Figure 6 Schematic diagram of the guide groove and guide structure.

[0036] Figure 7 Schematic diagram of the structure of the existing bracket.

[0037] Numbers in the figure: 1. Base; 2. Power frequency magnetic field antenna; 3. Support rod; 4. Mounting hole; 5. Adjusting sleeve; 6. Locking pin; 7. Telescopic rod; 8. Elastic protrusion; 9. Telescopic tube; 10. Guide groove; 11. Chassis; 12. Support plate; 13. Mounting rod; 14. Fixed slide; 15. Fixed pin; 16. Limiting groove; 17. Auxiliary support; 18. Roller; 19. Connecting sleeve; 20. Locking bolt; 21. Fixed block; 22. Guide structure; 23. Guide rod; 24. Base. DETAILED DESCRIPTION

[0038] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the relevant invention and are not intended to limit the invention. It should also be noted that, for ease of description, only portions relevant to the invention are shown in the accompanying drawings.

[0039] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0040] To make the description of the following embodiments clear and concise, a brief introduction to the related technologies is first given:

[0041] In the field of automotive parts testing, power frequency magnetic field testing is mainly used to test components such as on-board chargers and charging guns that are connected to the power grid. The test is usually carried out using the standard GB / T 17626.8-2006 "Electromagnetic compatibility test and measurement technology power frequency magnetic field immunity test". Figure 7As shown, existing brackets generally include a base 24 with two parallel guide rods 23 vertically mounted on the base 24. Connecting structures are mounted on either side of the power frequency magnetic field antenna 2. The connecting structures are slidably connected to the guide rods 23. The height of the power frequency magnetic field antenna 2 is adjusted by synchronously moving the connecting structures on the two guide rods 23. When the power frequency magnetic field antenna 2 is moved to the desired height, the connecting structures are fixed in place with bolts, thereby locking the current position of the power frequency magnetic field antenna 2. When the power frequency magnetic field antenna 2 needs to be adjusted, the bolts are tightened to allow the connecting structures to move along the guide rods 23, thereby changing the height of the power frequency magnetic field antenna 2. Existing brackets can only meet height adjustment requirements. However, the test layout requirements for different test samples vary, limiting their scope of use and resulting in low test efficiency.

[0042] In view of this, the present application proposes a power frequency magnetic field antenna bracket device to solve the above-mentioned defects.

[0043] In order to make the power frequency magnetic field antenna support device provided in the embodiment of the present application clearer and easier to understand, the support device is described below with reference to the accompanying drawings. Figure 1 As shown, this figure is a schematic diagram of the first structure of the power frequency magnetic field antenna support device provided in an embodiment of the present application, and the support device includes:

[0044] Base 1, two first adjustment components are provided on base 1 for adjusting the height of power frequency magnetic field antenna 2; the lifting direction of the first adjustment component is perpendicular to the surface of base 1; the first adjustment component has a first connection end;

[0045] It should be noted that the base 1 is the basic supporting component of the bracket device. Two first adjustment components are installed on the upper surface of the base 1. The two first adjustment components are used to adjust the height of the power frequency magnetic field antenna 2. The height here refers to the height of the power frequency magnetic field antenna 2 relative to the surface of the base 1. The lifting direction of the first adjustment component is, for example, Figure 1 Specifically, if Figure 1 As shown, the first adjustment component includes:

[0046] Support rod 3 is vertically mounted on base 1. Support rod 3 is provided with multiple mounting holes 4 evenly spaced along its axis. Bolts allow support rod 3 to be connected to base 1, facilitating assembly and disassembly of support rods 3 of varying diameters and lengths. This allows the power-frequency magnetic field antenna 2 to have varying height adjustment ranges to meet diverse test setup requirements. Providing the greatest number of mounting holes 4 along the axis of support rod 3 maximizes the height adjustment range of the power-frequency magnetic field antenna 2.

[0047] Adjusting sleeve 5, the adjusting sleeve 5 is sleeved on the support rod 3; the end of the adjusting sleeve 5 relatively far away from the support rod 3 is the first connecting end; a fixing through hole is opened on the side wall of the adjusting sleeve 5 relatively close to the support rod 3; wherein, the adjusting sleeve 5 can move relative to the support rod 3, thereby changing the height of the power frequency magnetic field antenna 2; the locking pin 6 is a separately arranged component. When the power frequency magnetic field antenna 2 is adjusted to the required height, the locking pin 6 passes through the fixing through hole and the mounting through hole 4 to lock the current height of the power frequency magnetic field antenna 2.

[0048] In addition, if Figure 5 As shown, the specific structure of the first adjustment component can also be:

[0049] The telescopic rod 7 is vertically arranged on the base 1; the side wall of the telescopic rod 7 away from the base 1 is provided with an elastic protrusion 8; wherein, the telescopic rod 7 can be an internal hollow structure, when the elastic protrusion 8 is compressed, it is placed inside the telescopic rod 7, when the elastic protrusion 8 loses pressure, it pops out from the telescopic rod 7; the telescopic rod 7 can also be a solid structure, with an opening on the telescopic rod 7, and the elastic protrusion 8 is installed at the opening position, the elastic protrusion 8 can be retracted into the opening, and can also pop out from the opening.

[0050] Multiple telescopic tubes 9 are sleeved on the telescopic rod 7; all telescopic tubes 9 are coaxially arranged with the telescopic rod 7, and the diameters of all telescopic tubes 9 increase from the side relatively close to the telescopic rod 7 to the side away from the telescopic rod 7; the side wall of the telescopic tube 9 away from the base 1 is provided with an elastic protrusion 8, and the side wall of the telescopic tube 9 close to the base 1 is provided with a matching hole; the end of the telescopic tube 9 relatively away from the telescopic rod 7 away from the base 1 is the first connecting end; wherein, the telescopic tube 9 and the telescopic rod 7 are sleeved and installed in a "nesting doll" installation manner.

[0051] And, as Figure 6 As shown, the side wall of the telescopic rod 7 is provided with two symmetrically arranged guide grooves 10 arranged along its axis, and the guide grooves 10 are connected to both ends of the telescopic rod 7; the side wall of the telescopic tube 9 is provided with a guide structure 22, and the guide structure 22 can be formed by the side wall of the telescopic tube 9 being recessed into the inside of the telescopic tube 9. At this time, the guide structure 22 has both a guiding and limiting function and a sliding support function. Figure 6As shown, the guide structure 22 of the telescopic tube 9 relatively close to the support rod 7 is slidably connected to the guide groove 10, while the remaining two adjacent telescopic tubes 9 are slidably connected via the guide structure 22. By moving the telescopic tube 9 along the axis of the telescopic rod 7, the elastic protrusion 8 can be engaged with the corresponding mating hole, thereby adjusting the height of the power frequency magnetic field antenna 2. Specifically, when the guide structure 22 of the telescopic tube 9 slides along the guide groove 10 of the telescopic rod 7 or along the guide structure 22 of the corresponding telescopic tube 9, the height of the power frequency magnetic field antenna 2 can be adjusted. When the corresponding mating hole and the elastic protrusion 8 engage, the current position of the power frequency magnetic field antenna 2 is locked. In this case, if the height of the power frequency magnetic field antenna 2 is to be further adjusted, the telescopic tube 9 relatively far from the base 1 applies a pushing force toward the base 1, causing the telescopic tubes 9 to move one by one closer to the base 1, simultaneously pushing the corresponding elastic protrusion 8 away from the mating hole, releasing the current position restriction, and then moving the telescopic tube 9 again to engage the corresponding mating hole and the elastic protrusion 8, so that the power frequency magnetic field antenna 2 reaches the new desired height.

[0052] like Figure 1 or Figure 5 As shown, there are two second adjustment components, and the second adjustment components have a second connection end and a third connection end; the second connection end is connected to the first connection end in a one-to-one correspondence; an installation space is formed between the two third connection ends for installing the power frequency magnetic field antenna 2; the second adjustment component is used to drive the power frequency magnetic field antenna 2 to rotate around the first axis to a desired angle; the first axis is an extension line of the line connecting the two third connection ends, which is perpendicular to the lifting direction of the first adjustment component and parallel to the surface of the base 1.

[0053] It should be noted that if Figure 2 As shown, the second adjustment component specifically includes:

[0054] The chassis 11 is arranged on the first connection end; the bottom surface of the chassis 11 is formed with a second connection end; wherein the chassis 11 has a boss, and the boss serves as the second connection end.

[0055] Two support plates 12 are vertically mounted on the chassis 11. A space is formed between the two support plates 12 to accommodate a mounting rod 13. One end of the mounting rod 13 abuts the chassis 11, and the other end serves as a third connection end. A fixing hole is provided on the side of the mounting rod 13 near the chassis 11. The support plates 12 and chassis 11 can be integrally formed. The mounting rod 13 can swing relative to the chassis 11. When the mounting rod 13 swings to the desired position, a fixing pin 15 is inserted through the fixing hole to secure the mounting rod 13 in its current position. The swing angle range of the mounting rod 13 is 0°-180°.

[0056] like Figure 2 and Figure 3As shown, a fixed slot 14 is provided on the support plate 12. The fixed slot 14 is arc-shaped, and two fixed slots 14 are arranged corresponding to the fixing holes. A fixing pin 15 penetrates the fixed slot 14 and the fixing hole to fix the current angle of the power frequency magnetic field antenna 2. Specifically, when the mounting rod 13 swings to the desired position, the fixing pin 15 penetrates the fixed slot 14 and the fixing hole on the mounting rod 13 to fix the current position. In addition, the end of the fixing pin 15 has an extension plate, which contacts the support plate 12, indirectly increasing the contact area between the mounting rod 13 and the support plate 12, and more stably fixing the current position. Here, the angle of the power frequency magnetic field antenna 2 refers to the angle between the extension line of the axis of the mounting rod 13 and the extension line of the chassis 11, with the opening of this angle facing the test sample. In addition, the test sample refers to components and products connected to the power grid, such as on-board chargers and charging guns in the automotive field.

[0057] Furthermore, if Figure 4 As shown, a limiting groove 16 is provided on the surface of the chassis 11 away from the first adjustment component, and the limiting groove 16 abuts against the end of the mounting rod 13 near the chassis 11. When the angle of the power frequency magnetic field antenna 2 needs to be adjusted, the contact position between the limiting groove 16 and the end of the mounting rod 13 supports the mounting rod 13, enabling the mounting rod 13 to swing relative to the chassis 11. Here, the limiting groove 16 is hemispherical in shape, and the end of the mounting rod 13 is spherical in shape. This not only stably supports the swinging of the mounting rod 13, but also limits the end of the mounting rod 13 when fixing the angle of the power frequency magnetic field antenna 2, preventing the mounting rod 13 from being misaligned on the chassis 11, causing the power frequency magnetic field antenna 2 to fall, and causing damage to the entire bracket device.

[0058] Furthermore, if Figure 3 As shown, an auxiliary support member 17 is provided within the fixed chute 14 to assist the fixed pin 15 in limiting the relative position of the mounting rod 13. Here, the auxiliary support member 17 is, for example, an elastic rubber strip. When the fixed pin 15 is assembled, the auxiliary support member 17 is inserted into the remaining space in the fixed chute 14. The auxiliary support member 17 can assist in supporting the fixed pin 15, preventing minor displacement of the fixed pin 15 that could affect the accuracy of the test. Furthermore, the auxiliary support member 17 can be inserted on both sides of the fixed pin 15, or only on the side of the fixed pin 15 corresponding to the mounting rod 13 that has a tendency to tilt.

[0059] Furthermore, the bottom surface of the base 1 is provided with a plurality of rollers 18 arranged evenly; Figure 1 or Figure 5 As shown, the number of rollers 18 is, for example, four, which are evenly distributed on the bottom surface of the base 1 , making it easier to move the bracket device to a desired location and improving the moving efficiency of the power frequency magnetic field antenna 2 .

[0060] It should be noted that the connection method of the power frequency magnetic field antenna 2 and the mounting rod 13 is not limited. In the embodiment of the present application, for example, a mounting assembly is used for connection. Figure 2 As shown, the mounting assembly specifically includes: a connecting sleeve 19, which is sleeved on the mounting rod 13; a threaded hole is provided on one side of the connecting sleeve 19, and the central axis of the threaded hole is perpendicular to the axis of the mounting rod 13; a locking bolt 20 is connected to the threaded hole, and the end of the locking bolt 20 can pass through the threaded hole and rest on the side wall of the mounting rod 13; here, the threaded hole and the locking bolt 20 are located on the same side as the fixing pin 15; a fixing block 21 is also provided on the connecting sleeve 19, which is symmetrically arranged with the threaded hole, and a through hole is provided on the fixing block 21 for mounting the power frequency magnetic field antenna 2; based on the above-mentioned mounting assembly structure, the connection between the power frequency magnetic field antenna 2 and the mounting rod 13 can be achieved. In addition, since the mounting rod 13 has a certain length, by rotating the locking bolt 20, the end of the locking bolt 20 is separated from the side wall of the mounting rod 13, allowing the connecting sleeve 19 to move along the mounting rod 13. When it moves to the desired position, the locking bolt 20 is rotated again so that its end abuts against the side wall of the mounting rod 13, thereby realizing the connection between the power frequency magnetic field antenna 2 and the mounting rod 13 and fine-tuning the height of the power frequency magnetic field antenna 2.

[0061] The present application designs a first adjustment component and a second adjustment component for use on the base 1, and an industrial frequency magnetic field antenna 2 is installed between the two second adjustment components. The first adjustment component is used to adjust the industrial frequency magnetic field antenna 2 to the required height, and the second adjustment component is used to drive the industrial frequency magnetic field antenna 2 to rotate to the required angle, so that the industrial frequency magnetic field antenna 2 has the function of free adjustment in width and height, thereby increasing the overall range of movement of the bracket, being more adaptable to different test layout requirements, and being easy to operate, effectively improving test efficiency.

[0062] The present application also provides a power frequency magnetic field testing system, comprising: a test table and the above-mentioned power frequency magnetic field antenna support device;

[0063] The test table is used to place the sample under test. The power frequency magnetic field antenna bracket device is used in conjunction with the test table to adjust the position of the power frequency magnetic field antenna 2, thereby testing the performance of the sample under test in the power frequency magnetic field environment.

[0064] The power frequency magnetic field test system has the functions and advantages of the above-mentioned power frequency magnetic field antenna bracket device, which will not be described in detail here.

[0065] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the invention herein is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the inventive concept. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features having similar functions disclosed in this application.

Claims

1. A power frequency magnetic field antenna support device, characterized in that: include: A base (1), wherein the base (1) is provided with two first adjustment components for adjusting the height of the power frequency magnetic field antenna (2); The lifting direction of the first adjustment component is arranged perpendicular to the surface of the base (1); the first adjustment component has a first connecting end; Two second adjustment components, each of the second adjustment components having a second connection end and a third connection end; the second connection end is connected to the first connection end in a one-to-one correspondence; an installation space is formed between the two third connection ends for installing the power frequency magnetic field antenna (2); the second adjustment component is used to drive the power frequency magnetic field antenna (2) to rotate around a first axis to a desired angle; the first axis is an extension line of a line connecting the two third connection ends, which is perpendicular to the lifting direction of the first adjustment component and parallel to the surface of the base (1).

2. The power frequency magnetic field antenna support device according to claim 1, characterized in that: The first adjustment component includes: A support rod (3), the support rod (3) being vertically arranged on the base (1); the support rod (3) being provided with a plurality of mounting through holes (4) evenly distributed along its axial direction; An adjusting sleeve (5), the adjusting sleeve (5) being sleeved on the support rod (3); an end of the adjusting sleeve (5) relatively far from the support rod (3) being the first connecting end; a fixing through hole is provided on a side wall of the adjusting sleeve (5) relatively close to the support rod (3); The current height of the power frequency magnetic field antenna (2) is locked by passing a locking pin (6) through the fixing through hole and the mounting through hole (4).

3. The power frequency magnetic field antenna support device according to claim 1, characterized in that: The first adjustment component includes: A telescopic rod (7), the telescopic rod (7) being vertically arranged on the base (1); a side wall of the telescopic rod (7) away from the base (1) being provided with an elastic protrusion (8); A plurality of telescopic tubes (9), wherein the telescopic tubes (9) are sleeved on the telescopic rod (7); all the telescopic tubes (9) are coaxially arranged with the telescopic rod (7), and the diameters of all the telescopic tubes (9) increase from a side relatively close to the telescopic rod (7) to a side away from the telescopic rod (7); a side wall of the telescopic tube (9) away from the base (1) is provided with an elastic protrusion (8), and a side wall of the telescopic tube (9) close to the base (1) is provided with a matching hole; an end of the telescopic tube (9) away from the base (1) relatively far from the telescopic rod (7) is the first connecting end; By moving the telescopic tube (9) along the axial direction of the telescopic rod (7), the elastic protrusion (8) can be engaged with the corresponding matching hole, thereby adjusting the height of the power frequency magnetic field antenna (2).

4. The power frequency magnetic field antenna support device according to claim 1, characterized in that: The second adjustment component includes: A chassis (11), the chassis (11) being arranged on the first connection end; the second connection end being formed on the bottom surface of the chassis (11); Two support plates (12), the support plates (12) being vertically arranged on the chassis (11); a receiving space being formed between the two support plates (12) for receiving a mounting rod (13); one end of the mounting rod (13) being in contact with the chassis (11), and the other end being the third connecting end; a fixing hole being provided on a side of the mounting rod (13) close to the chassis (11); A fixed slide groove (14), wherein the fixed slide groove (14) is provided on the support plate (12), the fixed slide groove (14) is arc-shaped, and two fixed slide grooves (14) are provided corresponding to the fixed holes; A fixing pin (15) passes through the fixing slot (14) and the fixing hole to fix the current angle of the power frequency magnetic field antenna (2).

5. The power frequency magnetic field antenna support device according to claim 4, characterized in that: A limiting groove (16) is provided on a surface of the chassis (11) away from the first adjustment component, and the limiting groove (16) abuts against an end of the mounting rod (13) close to the chassis (11).

6. The power frequency magnetic field antenna support device according to claim 4, characterized in that: An auxiliary support member (17) is provided in the fixed sliding groove (14) for assisting the fixed pin (15) in limiting the relative position of the mounting rod (13).

7. The power frequency magnetic field antenna support device according to claim 1, characterized in that: The bottom surface of the base (1) is provided with a plurality of rollers (18) that are evenly arranged.

8. A power frequency magnetic field testing system, characterized in that: include: A test table and a power frequency magnetic field antenna support device according to any one of claims 1 to 7; The test table is used to place the sample to be tested, and the power frequency magnetic field antenna support device is used in conjunction with the test table to adjust the position of the power frequency magnetic field antenna (2), thereby testing the performance of the sample to be tested in a power frequency magnetic field environment.

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