Portable power equipment detection device and detection method thereof

Abstract

The invention relates to a portable power equipment detection device and a detection method thereof, and relates to the technical field of portable power equipment detection devices.The portable power equipment detection device comprises a box body, the side face of the box body is movably connected with a cover body through a hinge, and a reinforcing plate is arranged in the box body. Through the telescopic box, the rotating shaft, the threaded rod, the threaded cylinder and other structures, independent adjustment of the supporting height of the box body can be achieved, then the gradienter is matched to observe the horizontal state of the box body in real time, it can be ensured that the box body is placed stably, and the situation that the box cover inclines and shakes to affect stable placement and data reading of small equipment is avoided; according to the structure of the hollow plate and the light supplementing lamp on the cover body, the angle of the hollow plate can be adjusted through the fastening bolt in the dark light environment, the light supplementing lamp provides illumination, an illumination tool does not need to be additionally carried, the workload can be reduced, the operation smoothness can be improved, the rotating block and the auxiliary adjusting rod in the auxiliary frame can further assist in fixing the angle of the cover body, and the operation is convenient. And a more stable supporting environment can be provided for detection operation.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of portable power equipment detection devices, in particular to a portable power equipment detection device and a detection method thereof. BACKGROUND

[0002] The portable power automation detection device is an outdoor power construction equipment that is convenient for construction personnel to carry, and is mostly in the form of a suitcase, with equipment devices arranged inside the box.

[0003] The existing patent (publication number: CN217836741U) discloses a portable power automation detection device, which comprises a box body and a box cover. An accommodation groove is formed in the inner side surface of the box cover. A connecting block is slidably connected to the inner side surface of the accommodation groove. A protruding block is fixedly connected to the outer surface of the connecting block. An extrusion spring is fixedly connected to the inner side surface of the box cover. A protruding rod is fixedly connected to the outer portion of the extrusion spring. A support plate is rotatably connected to the outer surface of the connecting block. A return spring is fixedly connected to the inner side surface of the support plate. Through the cooperation between the support plate, the return spring, the bottom plate, the torsion spring, the protective pad, the helical gear and the positioning rod, the box cover can be stably supported when the suitcase is opened for use, so that the box cover can support small equipment and be easily taken and used by the user for data viewing, thereby improving the applicability of the detection device in actual use.

[0004] Although the device in the above-mentioned comparative document can place small equipment and other devices in the box cover, it is inconvenient for the operator to take them, and the operator cannot directly observe the values displayed on the small equipment, thereby causing certain limitations in the actual use of the detection device. However, the device has a single function, such as supporting the box cover during outdoor work. If the ground is not flat, the box cover may tilt or even shake, affecting the stable placement of the small equipment and the accuracy of data reading. In addition, the existing device lacks lighting function during use. In a dark outdoor environment or at night, the operator often needs to carry additional lighting tools, which not only increases the carrying burden, but also may affect the smoothness of the detection operation due to improper placement of the lighting tools. In order to solve the above-mentioned problems, a portable power equipment detection device and a detection method thereof are proposed. SUMMARY

[0005] (I) Technical problems solved

[0006] The purpose of this application is to provide a portable power equipment testing device and its testing method, which has a box support function and a lighting function. It solves the problem that the box cover tilts and shakes due to uneven ground when the existing testing device is operating outdoors, which affects the stable placement of the device and the accuracy of data reading. At the same time, it solves the problem that in low light environments, it is necessary to carry additional lighting tools, which increases the burden and affects the smoothness of operation.

[0007] The portable power equipment testing device and testing method provided in this application adopt the following technical solution: it includes a box, a cover is movably connected to the side of the box via a hinge, a reinforcing plate is provided inside the box, the internal space of the reinforcing plate is divided into a sliding groove and a mounting groove by a partition, a testing instrument body is installed and connected inside the mounting groove, and a level is provided on the top of the testing instrument body;

[0008] Two shrink boxes are fixedly connected to opposite sides of the box. A rotating shaft is tightly nested inside the top of each shrink box via a bearing. A threaded rod is fixedly connected to the bottom of the rotating shaft. A threaded cylinder is threaded onto the surface of the threaded rod, and a support rod is fixedly connected to the surface of the threaded cylinder. A transmission rod is tightly nested inside the side of each shrink box via a bearing. One end of the transmission rod rotates through the side of the shrink box and is fixedly connected to a knob. A worm gear is fixedly connected to the surface of the rotating shaft, and a worm is fixedly connected to the surface of the transmission rod. The worm gear and worm mesh with each other. Two hollow plates are movably connected to the inside of the cover via fastening bolts. A supplementary light is fixedly connected to the side of each hollow plate. An auxiliary frame is fixedly connected to opposite sides of the top of the cover. A rotating block is movably connected inside the auxiliary frame via fastening bolts, and an auxiliary adjustment rod is fixedly connected to one side of each rotating block.

[0009] By adopting the above technical solution, and through the structure of shrink box, rotating shaft, threaded rod, threaded cylinder, and knob, the support height of the box can be independently adjusted. When the outdoor ground is uneven, the operator can turn the knob to drive the transmission rod and worm gear to rotate. Through the meshing transmission of the worm gear and worm wheel, the rotating shaft and threaded rod can be rotated synchronously, and the threaded cylinder can be moved up and down on the surface of the threaded rod, thereby adjusting the extension length of the corresponding support rod. Then, by using a level to observe the level of the box in real time, the box can be placed stably, avoiding the device tilting and shaking, which would affect the stable placement of the equipment and data reading. At the same time, the hollow plate and supplementary light structure on the cover can adjust the angle of the hollow plate by tightening the bolts in low light environments, and provide illumination through the supplementary light, eliminating the need to carry additional lighting tools, reducing the workload and improving the smoothness of operation. The rotating block and auxiliary adjustment rod in the auxiliary frame can further help fix the angle of the cover, providing a more stable support environment for the testing operation.

[0010] Preferably, the auxiliary adjustment rod is fixedly connected to protrusions on both sides, and the auxiliary frame is provided with recesses on both sides inside;

[0011] By adopting the above technical solution, and through the engaging structure of the protrusion and the concave hole, the position of the auxiliary adjustment rod can be stably kept within the auxiliary frame when the auxiliary adjustment rod is stored.

[0012] Preferably, limit blocks are fixedly connected to both opposite sides of the support rod;

[0013] By adopting the above technical solution, the limit block can guide and limit the up and down movement of the support rod, preventing the support rod from shifting or rotating during adjustment and ensuring that it always extends and contracts stably in the vertical direction.

[0014] Preferably, a handle is provided on the side of the cover, the surface of the handle is provided with an anti-slip pad, a sponge pad is provided on the inner side of the cover, and the supplementary light is electrically connected to the main body of the testing instrument.

[0015] By adopting the above technical solutions and by setting handles and anti-slip pads, a more stable grip can be provided when carrying the device, which can prevent the device from being accidentally dropped due to slippage. The sponge pad inside the cover can form a flexible buffer protection for the instrument body, which can prevent the device from being damaged by collisions during movement. At the same time, the electrical connection design between the supplementary light and the instrument body allows the supplementary light to be directly powered by the instrument body, without the need for an additional power supply, simplifying the device structure and improving ease of use.

[0016] Preferably, a first sealing strip is provided on the top of the box body, and a second sealing strip is provided on the side of the cover body;

[0017] By adopting the above technical solution and setting the first and second sealing strips, a double sealing structure can be formed when the cover is closed. This can prevent external dust, moisture and other impurities from entering the interior of the box, and can prevent impurities from corroding the instrument body or interfering with the detection accuracy.

[0018] Preferably, a storage drawer is slidably connected inside the slide rail, the storage drawer is provided with multiple storage slots inside, and multiple straps are provided inside two of the storage slots;

[0019] By adopting the above technical solution and setting up storage drawers and multiple storage slots, tools and accessories of different specifications required during the testing process can be classified and stored, avoiding tool confusion and inconvenience in retrieval. The straps set in the storage slots can firmly fix some specific tools, preventing tools from shaking and colliding and causing damage when the device is moved.

[0020] Preferably, the box body is provided with handles on both sides, and protective pads are provided at the four corners of the top and bottom of the box body and the four corners of the cover.

[0021] By adopting the above technical solution and setting two symmetrical handles, it is easy for operators to carry the device from different angles. By setting protective pads on the top, bottom and four corners of the lid, the elastic cushioning effect of the protective pads can reduce the impact force when the device is accidentally dropped or hit, and can prevent the corners of the box and lid from being deformed and damaged by direct impact.

[0022] This application also provides a detection method for the aforementioned portable power equipment testing device, the method comprising the following steps:

[0023] Step 1: Preparation stage. Open the cover by rotating the handle on the side of the cover, then take out the testing tool from the storage drawer, and at the same time check the power of the testing instrument and whether each interface is normal.

[0024] Step Two: Adjustment Stage. Based on the height requirements of the testing environment, rotate the knob on the side of the shrink box to drive the transmission rod and the worm gear on the surface to rotate. Through the meshing of the worm gear and worm wheel, the rotating shaft and threaded rod rotate, thereby driving the threaded cylinder and support rod to move down along the inner wall of the shrink box until the box reaches a stable placement state. Then, rotate the fastening bolt on the side of the auxiliary frame to move the auxiliary adjustment rod out of the auxiliary frame. Adjust the rotation angle of the auxiliary adjustment rod according to the usage situation, and then adjust the length of the auxiliary adjustment rod. After the adjustment is completed, tighten the fastening bolt to fix it. At the same time, observe the level to ensure that the box is in a horizontal state.

[0025] Step 3: During the testing phase, connect the electrical equipment to be tested to the interface of the testing instrument body, operate the testing instrument body to perform parameter testing, and when supplementary lighting is needed, rotate the fastening bolts on the side of the hollow plate to unscrew the hollow plate from the cover, then turn on the supplementary light switch to ensure that the light is evenly irradiated on the testing area, and supplementary lighting can be performed.

[0026] Step 4: Storage stage. After the test is completed, turn off the supplementary light, put the testing tools back into the storage drawer, then rotate the knob in the opposite direction to retract the support rod into the shrink box, and then close the cover. At this time, the first sealing strip and the second sealing strip are tightly fitted to achieve a seal. At the same time, the sponge pad can form a buffer protection for the testing instrument body.

[0027] (ii) Beneficial effects

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. This invention provides a portable power equipment testing device and its testing method. Through the design of a shrink box, rotating shaft, threaded rod, threaded cylinder, and knob, the height of the housing support can be independently adjusted. When the outdoor ground is uneven, the operator can rotate the knob to drive the transmission rod and worm gear to rotate. Through the meshing transmission of the worm gear and worm wheel, the rotating shaft and threaded rod can rotate synchronously, allowing the threaded cylinder to move up and down on the surface of the threaded rod, thereby adjusting the extension length of the corresponding support rod. Then, by using a level to observe the housing's levelness in real time, the device can be placed stably, preventing tilting and shaking that could affect stable placement and data reading. Simultaneously, the hollow plate and supplementary lighting structure on the cover allow for adjustment of the hollow plate angle via tightening bolts in low-light environments, and the supplementary lighting provides illumination, eliminating the need for additional lighting tools, reducing workload, and improving operational smoothness. The rotating block and auxiliary adjustment rod within the auxiliary frame further assist in fixing the cover angle, providing a more stable support environment for the testing operation. Attached Figure Description

[0030] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0031] Figure 2 This is a side-view three-dimensional structural schematic diagram of the present invention;

[0032] Figure 3 This is a schematic diagram of the protective pad structure in this invention;

[0033] Figure 4 This is a schematic diagram of the box structure in this invention;

[0034] Figure 5 This is a schematic diagram of the cross-sectional structure of the box in this invention;

[0035] Figure 6 This is a schematic diagram of the storage drawer in this invention;

[0036] Figure 7 for Figure 1 A magnified cross-sectional view of the structure at point A in the middle.

[0037] The components include: 1. Housing; 101. Reinforcing plate; 102. Partition; 103. Slide groove; 104. Mounting groove; 105. Handle; 106. First sealing strip; 2. Cover; 201. Sponge pad; 202. Fastening bolt; 203. Hollow board; 204. Supplementary light; 205. Handle; 206. Anti-slip pad; 207. Second sealing strip; 3. Testing instrument body; 4. Storage drawer; 40 1. Storage compartment; 402. Strap; 5. Shrink box; 501. Shaft; 502. Threaded rod; 503. Threaded cylinder; 504. Support rod; 505. Limiting block; 506. Worm gear; 507. Transmission rod; 508. Worm; 509. Knob; 6. Auxiliary frame; 601. Rotating block; 602. Auxiliary adjusting rod; 603. Protrusion; 604. Concave hole; 7. Protective pad; 8. Level. Detailed Implementation

[0038] The following is in conjunction with the appendix Figure 1 - Appendix Figure 7 This application will be described in further detail below.

[0039] Example 1: A portable power equipment testing device and its testing method, referring to... Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 7 The device includes a housing 1, a cover 2 that is movably connected to the side of the housing 1 via a hinge, a reinforcing plate 101 that is installed inside the housing 1, and a partition 102 that divides the internal space of the reinforcing plate 101 into a sliding groove 103 and a mounting groove 104. The mounting groove 104 is equipped with a testing instrument body 3, and a level 8 is installed on the top of the testing instrument body 3.

[0040] Two shrink boxes 5 are fixedly connected to opposite sides of the housing 1. A rotating shaft 501 is tightly nested inside the top of each shrink box 5 via a bearing. A threaded rod 502 is fixedly connected to the bottom of the rotating shaft 501. A threaded cylinder 503 is threadedly connected to the surface of the threaded rod 502. A support rod 504 is fixedly connected to the surface of the threaded cylinder 503. A transmission rod 507 is tightly nested inside the side of each shrink box 5 via a bearing. One end of the transmission rod 507 rotates through the side of the shrink box 5 and is fixedly connected to a knob 509. A worm gear 506 is fixedly connected to the surface of the rotating shaft 501. A worm gear 508 is fixedly connected to the surface of rod 507, and a worm wheel 506 meshes with the worm gear 508. Two hollow plates 203 are movably connected to the inner side of the cover 2 via fastening bolts 202. A supplementary light 204 is fixedly connected to the side of the hollow plate 203. Auxiliary frames 6 are fixedly connected to opposite sides of the top of the cover 2. A rotating block 601 is movably connected to the inside of the auxiliary frame 6 via fastening bolts 202. An auxiliary adjusting rod 602 is fixedly connected to one side of the rotating block 601. The structure is connected via a shrink box 5, a rotating shaft 501, a threaded rod 502, and a threaded cylinder. Structures such as 503 and knob 509 allow for independent adjustment of the support height of the housing 1. When the outdoor ground is uneven, the operator can rotate knob 509 to rotate the transmission rod 507 and worm gear 508. Through the meshing transmission of worm gear 508 and worm wheel 506, the rotating shaft 501 and threaded rod 502 can rotate synchronously, allowing the threaded cylinder 503 to move up and down on the surface of threaded rod 502, thereby adjusting the extension length of the corresponding support rod 504. Then, by using a level 8 to observe the levelness of the housing 1 in real time, the stable placement of the housing 1 can be ensured. This design avoids the device from tilting and shaking, which could affect the stable placement of the equipment and data reading. At the same time, the hollow plate 203 and the supplementary light 204 structure on the cover 2 can adjust the angle of the hollow plate 203 by tightening the bolts 202 in low-light environments, and provide illumination through the supplementary light 204. There is no need to carry additional lighting tools, which can reduce the workload and improve the smoothness of operation. The rotating block 601 and the auxiliary adjustment rod 602 in the auxiliary frame 6 can further help to fix the angle of the cover 2, providing a more stable support environment for the detection operation.

[0041] Please see Figure 2 and Figure 7 The auxiliary adjustment rod 602 is fixedly connected to protrusions 603 on both sides. The auxiliary frame 6 has recesses 604 on both sides inside. Through the engaging structure of the protrusions 603 and the recesses 604, the position of the auxiliary adjustment rod 602 can be stabilized in the auxiliary frame 6 when it is stored. The support rod 504 is fixedly connected to limit blocks 505 on both sides. The limit blocks 505 can guide and limit the up and down movement of the support rod 504, preventing the support rod 504 from shifting or rotating during adjustment, and ensuring that it always extends and retracts stably in the vertical direction.

[0042] Please see Figure 1 and Figure 2 The cover 2 has a handle 205 on its side, and an anti-slip pad 206 on its surface. The inside of the cover 2 has a sponge pad 201. The supplementary light 204 is electrically connected to the main body of the testing instrument 3. By setting the handle 205 and the anti-slip pad 206, a more stable grip can be provided when carrying the device, which can prevent the device from being accidentally dropped due to slippage. The sponge pad 201 inside the cover 2 can form a flexible buffer protection for the main body of the testing instrument 3, which can prevent the device from being damaged by collision during movement. At the same time, the electrical connection design between the supplementary light 204 and the main body of the testing instrument 3 allows the supplementary light 204 to be directly powered by the instrument body without the need for an additional power supply, simplifying the device structure and improving ease of use.

[0043] Please see Figure 1 , Figure 3 , Figure 4 and Figure 6 The top of the housing 1 is equipped with a first sealing strip 106, and the side of the cover 2 is equipped with a second sealing strip 207. By setting the first sealing strip 106 and the second sealing strip 207, a double sealing structure can be formed when the cover 2 is closed, preventing external dust, moisture, and other impurities from entering the housing 1. This avoids impurities from corroding the instrument body 3 or interfering with the detection accuracy. A storage drawer 4 is slidably connected inside the slide groove 103. The storage drawer 4 has multiple storage slots 401 inside, and multiple straps 402 are installed inside two storage slots 401. By setting the storage drawer 4 and multiple storage slots 401, tools and accessories of different specifications required during the detection process can be classified and stored, avoiding... To prevent tools from becoming cluttered and inconvenient to access, the straps 402 inside the storage compartment 401 can securely hold certain tools in place, preventing damage from shaking or collisions when the device is moved. Each side of the housing 1 has a handle 105, and protective pads 7 are provided at the four corners of the top and bottom of the housing 1 and the four corners of the lid 2. The two symmetrical handles 105 allow operators to easily lift the device from different angles. The protective pads 7 at the top, bottom, and four corners of the lid 2 provide elastic cushioning to reduce impact when the device is accidentally dropped or struck, preventing deformation and damage to the corners of the housing 1 and lid 2 from direct impact.

[0044] Reference Figure 1 - Figure 7 This application also provides a detection method for a portable power equipment testing device, the method comprising the following steps:

[0045] Step 1: Preparation stage. Open the cover 2 by rotating the handle 205 on the side of the cover 2, then take out the testing tool from the storage drawer 4, and at the same time check the power of the testing instrument body 3 and whether each interface is normal.

[0046] Step 2: Adjustment stage. According to the height requirements of the testing environment, rotate the knob 509 on the side of the shrink box 5 to drive the transmission rod 507 and the worm gear 508 on the surface to rotate. Through the meshing of the worm gear 508 and the worm wheel 506, the rotating shaft 501 and the threaded rod 502 are rotated, which in turn drives the threaded cylinder 503 and the support rod 504 to move down along the inner wall of the shrink box 5 until the box 1 reaches a stable placement state. Then, rotate the fastening bolt 202 on the side of the auxiliary frame 6 to move the auxiliary adjustment rod 602 out of the auxiliary frame 6. Adjust the rotation angle of the auxiliary adjustment rod 602 according to the usage situation, and then adjust the length of the auxiliary adjustment rod 602. After the adjustment is completed, tighten the fastening bolt 202 to fix it. At the same time, observe the level 8 to ensure that the box 1 is in a horizontal state.

[0047] Step 3: During the testing phase, connect the electrical equipment to be tested to the interface of the testing instrument body 3, operate the testing instrument body 3 to perform parameter testing, and when supplementary lighting is required, rotate the fastening bolt 202 on the side of the hollow plate 203 to unscrew the hollow plate 203 from the cover 2, and then turn on the supplementary light 204 switch to ensure that the light is evenly irradiated on the testing area, and supplementary lighting can be performed.

[0048] Step 4: Storage stage. After the test is completed, turn off the supplementary light 204, put the test tools back into the storage drawer 4, then rotate the knob 509 in the opposite direction to retract the support rod 504 into the shrink box 5, and then close the cover 2. At this time, the first sealing strip 106 and the second sealing strip 207 are tightly attached to achieve a seal. At the same time, the sponge pad 201 can form a buffer protection for the test instrument body 3.

[0049] The implementation principle of this application embodiment is as follows: In actual use, the operator can drive the worm gear 508 and worm wheel 506 to quickly extend and retract the support rod 504 by rotating the knob 509. Then, in conjunction with the level 8, it can accurately ensure that the box 1 is placed horizontally, which can avoid the problem of instrument tilting due to uneven ground and ensure the accuracy of the test data. At the same time, the supplementary light 204 on the cover 2 can flexibly adjust the angle according to the light conditions, eliminating the need to carry additional lighting equipment and reducing the burden of outdoor operations.

[0050] The storage drawer 4 features multi-sized storage slots 401 and straps 402, which can classify and fix the testing tools, making them easy to access and preventing damage from shaking. The double sealing design enhances the dustproof and waterproof performance of the housing 1, while the protective pad 7 and handle 105 further improve the portability and drop resistance of the device. The overall structural design fully considers the actual needs of outdoor power testing scenarios, improving the efficiency and safety of testing operations.

Claims

1. A portable power equipment testing device, comprising a housing (1), characterized in that: The box (1) is connected to the cover (2) by hinges on the side. The box (1) is provided with a reinforcing plate (101). The internal space of the reinforcing plate (101) is divided into a sliding groove (103) and a mounting groove (104) by a partition (102). The mounting groove (104) is connected to the detection instrument body (3). The top of the detection instrument body (3) is provided with a level (8). Two shrink boxes (5) are fixedly connected to each other on both sides of the box (1). A rotating shaft (501) is tightly nested inside the top of the shrink box (5) via a bearing. A threaded rod (502) is fixedly connected to the bottom of the rotating shaft (501). A threaded cylinder (503) is threadedly connected to the surface of the threaded rod (502). A support rod (504) is fixedly connected to the surface of the threaded cylinder (503). A transmission rod (507) is tightly nested inside the side of the shrink box (5) via a bearing. One end of the transmission rod (507) rotates through the side of the shrink box (5) and is fixedly connected to a knob (509). The surface of the rotating shaft (501) A worm gear (506) is fixedly connected, and a worm (508) is fixedly connected to the surface of the transmission rod (507). The worm gear (506) and the worm (508) mesh with each other. Two hollow plates (203) are movably connected to the inner side of the cover (2) by fastening bolts (202). A supplementary light (204) is fixedly connected to the side of the hollow plate (203). An auxiliary frame (6) is fixedly connected to both opposite sides of the top of the cover (2). A rotating block (601) is movably connected to the inside of the auxiliary frame (6) by fastening bolts (202). An auxiliary adjusting rod (602) is fixedly connected to one side of the rotating block (601).

2. The portable power equipment testing device according to claim 1, characterized in that: The auxiliary adjustment rod (602) is fixedly connected to protrusions (603) on both sides, and the auxiliary frame (6) has recesses (604) on both sides inside.

3. The portable power equipment testing device according to claim 1, characterized in that: Limiting blocks (505) are fixedly connected to both sides of the support rod (504).

4. The portable power equipment testing device according to claim 1, characterized in that: The cover (2) is provided with a handle (205) on its side, and the surface of the handle (205) is provided with an anti-slip pad (206). The inside side of the cover (2) is provided with a sponge pad (201). The supplementary light (204) is electrically connected to the main body (3) of the detection instrument.

5. A portable power equipment testing device according to claim 1, characterized in that: The top of the box (1) is provided with a first sealing strip (106), and the side of the cover (2) is provided with a second sealing strip (207).

6. A portable power equipment testing device according to claim 1, characterized in that: The slide (103) is slidably connected to a storage drawer (4), and the storage drawer (4) is provided with multiple storage slots (401), and multiple straps (402) are provided inside the two storage slots (401).

7. A portable power equipment testing device according to claim 1, characterized in that: The box (1) is provided with handles (105) on both sides, and protective pads (7) are provided at the top four corners and bottom four corners of the box (1) and the four corners of the cover (2).

8. A testing method for a portable power equipment testing device according to any one of claims 1-7, characterized in that: The method includes the following steps: Step 1: Preparation stage. Open the cover (2) by rotating the handle (205) on the side of the cover (2), then take out the testing tool in the storage drawer (4), and at the same time check the power of the testing instrument body (3) and whether each interface is normal. Step 2: Adjustment stage. According to the height requirements of the testing environment, rotate the knob (509) on the side of the shrink box (5) to drive the transmission rod (507) and the worm gear (508) on the surface to rotate. Through the meshing of the worm gear (508) and the worm wheel (506), the rotating shaft (501) and the threaded rod (502) are rotated, which in turn drives the threaded cylinder (503) and the support rod (504) to move down along the inner wall of the shrink box (5) until the box (1) reaches a stable placement state. Then rotate the fastening bolt (202) on the side of the auxiliary frame (6) to rotate the auxiliary adjustment rod (602) out of the auxiliary frame (6). Adjust the rotation angle of the auxiliary adjustment rod (602) according to the usage. Then adjust the length of the auxiliary adjustment rod (602). After the adjustment is completed, tighten the fastening bolt (202) to fix it. At the same time, observe the level (8) to ensure that the box (1) is in a horizontal state. Step 3: During the testing phase, connect the electrical equipment to be tested to the interface of the testing instrument body (3), operate the testing instrument body (3) to perform parameter testing, and when supplementary lighting is needed, rotate the fastening bolt (202) on the side of the hollow plate (203) to unscrew the hollow plate (203) from the cover (2), and then turn on the supplementary light (204) switch to ensure that the light is evenly irradiated on the testing area, and supplementary lighting can be performed; Step 4: Storage stage. After the test is completed, turn off the supplementary light (204), put the test tool back into the storage drawer (4), and then rotate the knob (509) in the opposite direction to make the support rod (504) retract into the shrink box (5). Then close the cover (2). At this time, the first sealing strip (106) and the second sealing strip (207) are tightly attached to achieve a seal. At the same time, the sponge pad (201) can form a buffer protection for the test instrument body (3).

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