Power detection device for power installation

The power testing equipment, with its lifting support and wall-mounted fixing mode, solves the problem of handheld operation of traditional equipment in high-altitude and confined spaces, achieving stable testing and improved safety.

CN122193647APending Publication Date: 2026-06-12STATE GRID SHANDONG ELECTRIC POWER CO JUYE POWER SUPPLY CO
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
STATE GRID SHANDONG ELECTRIC POWER CO JUYE POWER SUPPLY CO
Filing Date
2026-04-14
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Traditional power testing equipment is prone to shaking and poor contact when operated by hand in high altitudes and confined spaces, which affects the accuracy and safety of the test data. In addition, the fixing method is limited and cannot be flexibly adapted to different testing scenarios.

Method used

It employs fixed components, fixing mechanisms, and support components to achieve two modes: lifting support and wall-mounted fixation. Combined with a return spring and magnetic structure, it ensures stable fixation of the equipment and avoids hand operation.

Benefits of technology

It improves the accuracy and security of test data, reduces the labor intensity of operators, avoids the risk of equipment falling, and adapts to the testing needs of different heights and complex scenarios.

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Abstract

The application discloses a power detection equipment for power installation and belongs to the technical field of power detection equipment. The power detection equipment for power installation comprises a detection main body, one end of the detection main body is connected with a fixing assembly, the lower end of the fixing assembly is connected with a height adjusting assembly, and the one end of the fixing assembly is connected with fixing mechanisms on the two sides. The fixing assembly, the fixing mechanisms and the supporting assembly can be used to flexibly switch between the lifting supporting mode and the wall-hanging fixing mode, the operation personnel need not hold the equipment for operation, handheld shaking during high-altitude and narrow-space detection is effectively avoided, the rectangular groove formed by the L-shaped connecting block and the detection frame body can be stably clamped to the hanging surface under the wall-hanging mode, the reinforcing effect of the L-shaped telescopic block is combined, the equipment deviation caused by the shaking of the hanging surface can be effectively prevented, meanwhile, the probe can be stably aligned to the measured point, the detection data drift and error are greatly reduced, and the accurate and reliable detection result is ensured.
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Description

Technical Field

[0001] This invention relates to the field of power testing equipment technology, and more specifically, to a power testing device for power installation. Background Technology

[0002] During the installation and construction of power lines, power distribution devices and electrical equipment, power testing is a key step to ensure installation quality and avoid potential electrical safety hazards. It is necessary to use specialized power testing equipment to accurately test core power parameters such as line insulation performance, grounding resistance, voltage and current, phase sequence, etc., to ensure that the equipment installation complies with industry specifications and safety standards.

[0003] Currently, traditional testing equipment mostly relies on manual operation by operators. When testing at heights or in confined spaces, such as inside electrical cabinets or next to cable trays, problems such as hand wobbling and poor contact between the probe and the test point are prone to occur, resulting in data drift and large errors, affecting the accuracy and reliability of the test results. At the same time, the existing equipment has a single fixing method, mostly only able to be placed on the ground, and cannot be flexibly hung on electrical cabinet doors, cable trays, or other structures. When testing at heights, operators must hold the equipment by hand, which is labor-intensive and poses a risk of falling. Summary of the Invention

[0004] The purpose of this invention is to provide a power testing device for power installation, so as to solve the problems mentioned in the background art.

[0005] A power testing device for power installation includes a testing body, a fixing component connected to one end of the testing body, a height adjustment component connected to the lower end of the fixing component, fixing mechanisms connected to both sides of one end of the fixing component, and support components connected to the four corners of the lower end of the testing body. The detection body includes a detection frame, a connecting groove is provided on the rear surface of the detection frame, and circular holes are provided at the four corners of the lower end of the detection frame. The height adjustment component, the fixing component and the fixing mechanism are all installed in the inner cavity of the connecting groove. The fixing component includes an L-shaped connecting block, with circular connecting rods connected to both front sides of the L-shaped connecting block. Each circular connecting rod has a second connecting groove on its upper side facing one end of the L-shaped connecting block, and a first rectangular connecting block is connected to the lower front side of the L-shaped connecting block. Several circular fixing blocks are connected to the end of the first rectangular connecting block away from the circular connecting rods, and the circular connecting rods are fixed in the inner cavity of the detection frame. The height adjustment component includes a second rectangular connecting block, a plurality of circular fixing holes are provided on the outer surface of the second rectangular connecting block, and a third rectangular connecting block is connected to the lower end of the second rectangular connecting block. The fixing mechanism includes a fixing block, a circular guide rod connected to the end of the fixing block away from the fixing component, a first reset spring sleeved on the outer side of the circular guide rod, and a pull rod connected to the end of the circular guide rod away from the fixing block, and the pull rod is connected to the circular guide rod through the detection frame.

[0006] Preferably, the front end of the L-shaped connecting block has a third circular hole on both sides, and a second return spring is connected to the inner cavity of each third circular hole. A connecting block is connected to the front end of each second return spring, and a first connecting block is connected to both sides of the end of the L-shaped connecting block away from the circular connecting rod. A fixing groove is provided on the end of each first connecting block facing the fixing mechanism.

[0007] Preferably, a fourth circular hole is provided in the middle part of the L-shaped connecting block, a second circular guide rod is connected in the inner cavity of the fourth circular hole, a third return spring is sleeved on the outer side of the second circular guide rod, and a rectangular sliding block is connected to the end of the third return spring away from the circular connecting rod.

[0008] Preferably, the rectangular sliding block has L-shaped grooves on both sides of the end away from the second circular guide rod, and an L-shaped telescopic block is connected in the inner cavity of the L-shaped groove. The outer surfaces of both ends of the L-shaped connecting block have rectangular sliding grooves, and a fourth return spring is connected in the inner cavity of the L-shaped telescopic block. The upper surface of the rectangular sliding block has a first hole, and the fixing bolt coincides with the first hole by passing through the L-shaped connecting block.

[0009] Preferably, a detection device is connected to the front inner cavity of the detection frame, a protective cover is rotatably connected to the front surface of the detection frame, rectangular guide blocks are connected to both ends of the inner cavity of the connecting groove, a first magnetic block is connected to the outer surface of the protective cover, and a handle is connected to the top of the detection frame, with a second magnetic block connected to the front surface of the handle. When the protective cover is at a 180-degree angle to the detection frame, the first magnetic block and the second magnetic block will be magnetically attracted together.

[0010] Preferably, the support assembly includes a circular frame, a circular support rod is slidably connected to the inner cavity of the circular frame, a plurality of second circular holes are opened on the surface of the circular support rod, and circular fixing rods pass through the upper and lower ends of the circular frame.

[0011] Preferably, the third rectangular connecting block has several first circular holes on both sides, and a rectangular frame is slidably connected to the outer side of the second rectangular connecting block. The lower end of the rectangular frame is penetrated by a first circular connecting rod, and the first circular connecting rod fits into the first circular holes. The rectangular frame is fixed to the inner surface of the detection frame.

[0012] Preferably, the connecting groove fits into the connecting block, the initial position of the fixing block coincides with the fixing groove, and the rectangular slide groove fits into the rectangular guide block.

[0013] Compared with the prior art, the advantages of this invention are: In this invention, the fixed components, fixed mechanism, and support components allow for flexible switching between lifting support and wall-mounted fixing modes. This eliminates the need for operators to hold the equipment, effectively preventing hand-held shaking during testing in high-altitude or confined spaces. In wall-mounted mode, the rectangular groove formed by the L-shaped connecting block and the testing frame can stably engage the mounting surface. Combined with the reinforcement effect of the L-shaped telescopic block, this effectively prevents equipment displacement caused by shaking of the mounting surface. At the same time, the probe can be stably aligned with the test point, significantly reducing test data drift and errors, and ensuring accurate and reliable test results.

[0014] In this invention, the support component adopts a sliding fit between a circular frame and a circular support rod, and is fixed by a circular fixing rod, which can realize the initial adjustment and fine adjustment of the detection height. The operation is simple. In the wall-mounted mode, the height adjustment component can quickly adjust the hanging height of the detection body through the sliding fit between the rectangular frame and the third rectangular connecting block. It can quickly adapt to the tested lines or equipment of different heights and improve the detection efficiency.

[0015] In this invention, each component of the device adopts a reset spring and a limit fixing structure design, which can achieve automatic reset and fixation in the initial state. After the test is completed, the reset operation is simple and does not require complicated steps. The protective cover is fixed by a magnetic structure, which not only avoids shaking and obstructing the field of vision during the test, but also provides good protection for the test device. In this way, the whole device can be retracted and reset, with a small size, which is easy to carry, store and reuse, reducing the cost of equipment maintenance and storage.

[0016] 4. In this invention, the lifting support mode can realize ground and low-altitude detection, while the wall-mounted fixing mode can hang the equipment on the door panel of the power distribution cabinet, cable tray and other structures, which is suitable for complex detection scenarios such as high altitude and narrow space. It eliminates the need for operators to hold the equipment at high altitudes, which reduces the labor intensity of operators and avoids the safety hazard of the equipment falling, thus improving the safety of power installation and detection. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a side view of the structure of the present invention; Figure 3 This is a schematic diagram of the internal structure of the present invention; Figure 4 This is a partial structural schematic diagram of the present invention; Figure 5 This is a schematic diagram of the fixed component structure of the present invention; Figure 6 This is a schematic diagram of the internal structure of the fixing component of the present invention; Figure 7 This is a schematic diagram of the height adjustment component structure of the present invention; Figure 8 This is a schematic diagram of the fixing mechanism structure of the present invention; Figure 9 This is a schematic diagram of the detection main structure of the present invention; Figure 10 This is a side view of the detection body structure of the present invention; Figure 11 This is a schematic diagram of the support component structure of the present invention.

[0018] Explanation of the numbers in the diagram: 1. Detection body; 101. Detection frame; 102. Connecting groove; 103. Circular hole; 104. Detection device; 105. Protective cover; 106. Rectangular guide block; 2. Fixing assembly; 201. L-shaped connecting block; 202. Circular connecting rod; 203. Second connecting groove; 204. First rectangular connecting block; 205. Circular fixing block; 206. Third circular hole; 207. Second return spring; 208. Connecting block; 209. First connecting block; 210. Fixing groove; 211. Fourth circular hole; 212. Second circular guide rod; 213. Third... 214. Position spring; 215. Rectangular sliding block; 216. L-shaped groove; 217. L-shaped telescopic block; 218. Rectangular slide groove; 3. Height adjustment assembly; 301. Second rectangular connecting block; 302. Circular fixing hole; 303. Third rectangular connecting block; 304. First circular hole; 305. Rectangular frame; 306. First circular connecting rod; 4. Fixing mechanism; 401. Fixing block; 402. Circular guide rod; 403. First return spring; 404. Pull rod; 5. Support assembly; 501. Circular frame; 502. Circular support rod; 503. Second circular hole; 504. Circular fixing rod. Detailed Implementation

[0019] Example: Please refer to Figure 1 , Figure 2 and Figure 3 A power testing device for power installation includes a testing body 1, a fixing component 2 connected to one end of the testing body 1, a height adjustment component 3 connected to the lower end of the fixing component 2, a fixing mechanism 4 connected to both sides of one end of the fixing component 2, and a support component 5 connected to the four corners of the lower end of the testing body 1. Please see Figure 9 and Figure 10The detection body 1 includes a detection frame 101. A connecting groove 102 is provided on the rear surface of the detection frame 101, and a circular hole 103 is provided at each of the four corners at the lower end of the detection frame 101. The height adjustment component 3, the fixing component 2 and the fixing mechanism 4 are all installed in the inner cavity of the connecting groove 102. Please see Figure 5 and Figure 6 The fixing component 2 includes an L-shaped connecting block 201. Circular connecting rods 202 are connected to the front two sides of the L-shaped connecting block 201. A second connecting groove 203 is opened on the upper side surface of one end of each circular connecting rod 202 facing the L-shaped connecting block 201. A first rectangular connecting block 204 is connected to the lower side surface of the front of the L-shaped connecting block 201. A plurality of circular fixing blocks 205 are connected to the end surface of the first rectangular connecting block 204 away from the circular connecting rods 202. The circular connecting rods 202 are fixed in the inner cavity of the detection frame 101. Please see Figure 7 The height adjustment component 3 includes a second rectangular connecting block 301, a plurality of circular fixing holes 302 are provided on the outer surface of the second rectangular connecting block 301, and a third rectangular connecting block 303 is connected to the lower end of the second rectangular connecting block 301. Please see Figure 8 The fixing mechanism 4 includes a fixing block 401. A circular guide rod 402 is connected to one end of the fixing block 401 away from the fixing component 2. A first reset spring 403 is sleeved on the outer side of the circular guide rod 402. A pull rod 404 is connected to one end of the circular guide rod 402 away from the fixing block 401. The pull rod 404 is connected to the circular guide rod 402 through the detection frame 101.

[0020] Specifically, the device can flexibly switch between lifting support and wall-mounted fixing modes through the fixing component 2, fixing mechanism 4 and support component 5. This eliminates the need for operators to hold the device, effectively avoiding hand-held shaking during testing in high-altitude or confined spaces. In wall-mounted mode, the rectangular groove formed by the L-shaped connecting block 201 and the testing frame 101 can stably engage the mounting surface. Combined with the reinforcement effect of the L-shaped telescopic block 216, it can effectively prevent the device from shifting due to shaking of the mounting surface. At the same time, the probe can be stably aligned with the test point, greatly reducing test data drift and errors, and ensuring the accuracy and reliability of the test results.

[0021] Please see Figure 5 and Figure 6The front end of the L-shaped connecting block 201 has a third circular hole 206 on both sides. The inner cavity of each third circular hole 206 is connected to a second return spring 207. The front end of each second return spring 207 is connected to a connecting block 208. The two sides of the end of the L-shaped connecting block 201 away from the circular connecting rod 202 are connected to a first connecting block 209. The surface of each first connecting block 209 facing the fixing mechanism 4 has a fixing groove 210.

[0022] Please see Figure 5 and Figure 6 The L-shaped connecting block 201 has a fourth circular hole 211 in the middle. A second circular guide rod 212 is connected in the inner cavity of the fourth circular hole 211. A third return spring 213 is sleeved on the outer side of the second circular guide rod 212. A rectangular sliding block 214 is connected to the end of the third return spring 213 away from the circular connecting rod 202.

[0023] Specifically, the support component adopts a sliding engagement between a circular frame 501 and a circular support rod 502, and is limited and fixed by a circular fixing rod 504. This allows for initial and fine-tuning of the detection height, making operation simple. In wall-mounted mode, the height adjustment component 3 can quickly adjust the mounting height of the detection body through a sliding engagement between a rectangular frame 305 and a third rectangular connecting block 303. This allows for rapid adaptation to test lines or equipment of different heights, improving detection efficiency.

[0024] Please see Figure 4 , Figure 5 and Figure 6 The rectangular sliding block 214 has L-shaped grooves 215 on both sides of the end away from the second circular guide rod 212. An L-shaped telescopic block 216 is connected in the inner cavity of the L-shaped groove 215. The outer surfaces of both ends of the L-shaped connecting block 201 have rectangular sliding grooves 217. A fourth reset spring is connected in the inner cavity of the L-shaped telescopic block 216. The upper surface of the rectangular sliding block 214 has a first hole. The fixing bolt coincides with the first hole by passing through the L-shaped connecting block 201.

[0025] Please see Figure 9 and Figure 10 A detection device 104 is connected to the front end cavity of the detection frame 101. A protective cover 105 is rotatably connected to the front end surface of the detection frame 101. Rectangular guide blocks 106 are connected to both ends of the inner cavity of the connecting groove 102. A first magnetic block is connected to the outer surface of the protective cover 105. A handle is connected to the top of the detection frame 101. A second magnetic block is connected to the front end surface of the handle. When the protective cover 105 is at 180 degrees to the detection frame 101, the first magnetic block and the second magnetic block will be magnetically attracted together.

[0026] Please see Figure 11The support component 5 includes a circular frame 501, and a circular support rod 502 is slidably connected to the inner cavity of the circular frame 501. The surface of the circular support rod 502 is provided with a plurality of second circular holes 503. Circular fixing rods 504 pass through the upper and lower ends of the circular frame 501. The circular fixing rod 504 passing through the upper end of the circular frame 501 serves to fix the circular frame 501, while the circular fixing rod 504 passing through the lower end serves to fix the circular support rod 502.

[0027] Specifically, each component of the equipment adopts a reset spring and limit fixing structure design, which can achieve automatic reset and fixation in the initial state. After the test is completed, the reset operation is simple and does not require complicated steps. The protective cover 105 is fixed by a magnetic structure, which not only avoids shaking and obstructing the field of vision during the test, but also provides good protection for the test device 104. In this way, the entire equipment can be retracted and reset, with a small size, which is easy to carry, store and reuse, reducing the equipment maintenance and storage costs.

[0028] Please see Figure 7 The third rectangular connecting block 303 has several first circular holes 304 on both sides, and a rectangular frame 305 is slidably connected to the outer side of the second rectangular connecting block 301. The lower end of the rectangular frame 305 is penetrated by a first circular connecting rod 306, and the first circular connecting rod 306 fits into the first circular hole 304. The rectangular frame 305 is fixed on the inner surface of the detection frame 101.

[0029] The connecting groove 102 fits into the connecting block 208, the initial position of the fixing block 401 coincides with the fixing groove 210, and the rectangular slide 217 fits into the rectangular guide block 106.

[0030] Specifically, the lifting support mode enables ground and low-altitude testing, while the wall-mounted mode allows the equipment to be hung on structures such as distribution cabinet doors and cable trays, making it suitable for complex testing scenarios such as high altitudes and confined spaces. This eliminates the need for operators to hold the equipment while working at heights, reducing the labor intensity of operators and avoiding the safety hazard of the equipment falling, thus improving the safety of power installation and testing.

[0031] Working principle: First, move the detection body 1 next to the equipment that needs to be tested for power, and then open the door of the equipment. At this time, determine whether the detection body 1 needs to be in lifting mode or wall-mounted mode according to the height of the equipment and the position of the line being tested. If the lifting mode is used, several circular fixing rods 504 penetrating the lower end of the circular frame 501 in the support components 5 need to be pulled out to release the fixing operation of the circular support rod 502. Then, the detection body 1 is pulled upward by the handle until the detection body 1 reaches the predetermined height. Then, the circular fixing rods 504 are reset to fix the circular support rod 502. Then, the detection device 104 is used to detect the circuit. If the top of the circular support rod 502 reaches the surface of the lower inner cavity of the circular frame 501, the detection... If the height of the main body 1 has not reached the predetermined height, the circular fixing rods 504 that pass through the upper and lower ends of the circular frame 501 are pulled out until the main body 1 reaches the predetermined height. Then, the circular fixing rods 504 at the upper and lower ends fix the circular frame 501 and the circular support rod 502 respectively. Then, the protective cover 105 is opened and rotated. When the protective cover 105 is at 180 degrees with the detection frame 101, the first magnetic block and the second magnetic block will be magnetically attracted together. At this time, the power detection operation of the device is performed through the detection device 104. In wall-mounted mode, pulling the pull rods 404 connected to both sides of the detection frame 101 outward causes the first reset spring 403 to retract, thereby moving the circular guide rod 402 and the fixing block 401 away from the fixing component 2 until the fixing block 401 separates from the fixing groove 210. When the fixing block 401 separates from the fixing groove 210, the second reset spring 207 performs a reset operation, moving away from one end of the detection frame 101, thereby generating a pushing force on the L-shaped connecting block 201, thus causing the L-shaped connecting block 201 and the first rectangular connecting block to... 204 and the circular fixing block 205 move along the circular connecting rod 202 toward the end away from the detection frame 101 until the circular connecting rod 202 separates from the L-shaped connecting block 201. At this time, the circular fixing block 205 coincides with the circular fixing hole 302, and the L-shaped connecting block 201 and the detection frame 101 form a rectangular groove. At this time, the detection body 1 is moved upward by the handle until the rectangular groove coincides with the upper end of the door of the equipment, so that the detection body 1 is hung on the door. If the door of the equipment is easy to shake, the fixing bolt connected to the upper end of the L-shaped connecting block 201 is pulled out. When the fixing bolt connected to the upper end of the L-shaped connecting block 201 is pulled out, the third return spring 213 performs a reset operation, thereby driving the rectangular sliding block 214 to move away from the circular connecting rod 202. Then, depending on which side of the door the detection body 1 is hanging on, the L-shaped telescopic block 216 in that position is pulled outward, so that one end of the L-shaped telescopic block 216 contacts the edge of the equipment, thereby fixing the door and preventing it from shaking. After the door is fixed, the first circular connecting rod 306 is pulled out and then moved downward. The detection body 1 is tested until it moves to the predetermined position. Then, the first circular connecting rod 306 is reset, thereby fixing the third rectangular connecting block 303 and the rectangular frame 305 together. At this time, the protective cover 105 is opened and rotated. When the protective cover 105 is at 180 degrees to the detection frame 101, the first magnetic block and the second magnetic block will be magnetically attracted together. At this time, the power detection operation of the device is performed through the detection device 104. When the power detection operation is completed, all components are returned to their original positions, and all operations are ended.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A power testing device for power installation, comprising a testing body (1), characterized in that: One end of the detection body (1) is connected to a fixing component (2), the lower end of the fixing component (2) is connected to a height adjustment component (3), and both sides of one end of the fixing component (2) are connected to fixing mechanisms (4), and the four corners of the lower end of the detection body (1) are connected to support components (5). The detection body (1) includes a detection frame (101), a connecting groove (102) is provided on the rear surface of the detection frame (101), and a circular hole (103) is provided at each of the four corners at the lower end of the detection frame (101). The fixing component (2) includes an L-shaped connecting block (201), and circular connecting rods (202) are connected to the front two sides of the L-shaped connecting block (201). Each circular connecting rod (202) has a second connecting groove (203) on the upper side of one end facing the L-shaped connecting block (201). A first rectangular connecting block (204) is connected to the lower side of the front end of the L-shaped connecting block (201). A plurality of circular fixing blocks (205) are connected to the end surface of the first rectangular connecting block (204) away from the circular connecting rods (202). The height adjustment component (3) includes a second rectangular connecting block (301), a plurality of circular fixing holes (302) are provided on the outer surface of the second rectangular connecting block (301), and a third rectangular connecting block (303) is connected to the lower end of the second rectangular connecting block (301). The fixing mechanism (4) includes a fixing block (401), and a circular guide rod (402) is connected to one end of the fixing block (401) away from the fixing component (2). A first reset spring (403) is sleeved on the outside of the circular guide rod (402), and a pull rod (404) is connected to one end of the circular guide rod (402) away from the fixing block (401).

2. The power testing equipment for power installation according to claim 1, characterized in that: The front end of the L-shaped connecting block (201) is provided with a third circular hole (206) on both sides. The inner cavity of each third circular hole (206) is connected to a second return spring (207). The front end of each second return spring (207) is connected to a connecting block (208). The two sides of the end of the L-shaped connecting block (201) away from the circular connecting rod (202) are connected to a first connecting block (209). The surface of each first connecting block (209) facing the fixing mechanism (4) is provided with a fixing groove (210).

3. The power testing equipment for power installation according to claim 2, characterized in that: The L-shaped connecting block (201) has a fourth circular hole (211) in the middle. A second circular guide rod (212) is connected in the inner cavity of the fourth circular hole (211). A third return spring (213) is sleeved on the outer side of the second circular guide rod (212). A rectangular sliding block (214) is connected to the end of the third return spring (213) away from the circular connecting rod (202).

4. The power testing equipment for power installation according to claim 3, characterized in that: The rectangular sliding block (214) has L-shaped grooves (215) on both sides of the end away from the second circular guide rod (212). An L-shaped telescopic block (216) is connected in the inner cavity of the L-shaped groove (215). Rectangular sliding grooves (217) are formed on the outer surfaces of both ends of the L-shaped connecting block (201).

5. The power testing equipment for power installation according to claim 4, characterized in that: A detection device (104) is connected to the inner cavity of the front end of the detection frame (101), and a protective cover plate (105) is rotatably connected to the front surface of the detection frame (101). Rectangular guide blocks (106) are connected to the two ends of the inner cavity of the connecting groove (102).

6. The power testing equipment for power installation according to claim 5, characterized in that: The support assembly (5) includes a circular frame (501), and a circular support rod (502) is slidably connected to the inner cavity of the circular frame (501). The surface of the circular support rod (502) is provided with a plurality of second circular holes (503), and circular fixing rods (504) pass through the upper and lower ends of the circular frame (501).

7. The power testing equipment for power installation according to claim 6, characterized in that: The third rectangular connecting block (303) has several first circular holes (304) on both sides, and a rectangular frame (305) is slidably connected to the outer side of the second rectangular connecting block (301), with a first circular connecting rod (306) passing through the lower end of the rectangular frame (305).

8. The power testing equipment for power installation according to claim 7, characterized in that: The connecting groove (102) fits into the connecting block (208), the initial position of the fixing block (401) coincides with the fixing groove (210), and the rectangular slide (217) fits into the rectangular guide block (106).