Portable fault diagnosis electrician instrument

Abstract

The invention relates to the technical field of electrical instruments and meters, and discloses a portable fault diagnosis electrical instrument and meter, which comprises a box body, an instrument main body is fixedly connected in the box body, a box cover is rotatably connected to the outer surface of the box body, a top rib plate is fixedly connected to the outer surface of the box cover, and a bottom rib plate is fixedly connected to the outer surface of the box body. The outer surface of the box body is rotatably connected with a buckle, the outer surface of the box cover is fixedly connected with a portable mechanism and a plane mechanism, the lower surface of a bottom rib plate is fixedly connected with a lock catch mechanism, and the portable mechanism can flexibly adjust the position of a rotating handrail and close the box body to prevent shaking; the convenient mechanism can accurately adjust the position and the height of the handrail, and the stability and the controllability are improved; the plane mechanism enables the box cover to form an additional working surface and adjusts the supporting position along with the portable mechanism; the box cover is locked by the lock catch mechanism to adapt to different supporting surfaces, and stable operation of the instrument is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical instruments and meters, and particularly to a portable fault diagnosis electrical instrument and meter. Background Art

[0002] With the continuous expansion of the scale of modern power systems, whose coverage extends from the dense urban power grids to the transmission lines in remote areas, the number and complexity of electrical equipment are also continuously increasing; as a powerful assistant for power operation and maintenance personnel, portable fault diagnosis electrical instruments and meters can quickly and accurately detect the operating status of electrical equipment on-site and timely discover potential fault hazards, thus playing an irreplaceable role in the fields of power system operation and maintenance, electrical equipment maintenance, etc.

[0003] The patent application with the application number CN202221679907.1 discloses a portable electrical instrument and meter, including an instrument main body. A dashboard is fixedly installed on the top of the instrument main body, a display panel is fixedly installed on the top of the instrument main body, two connecting plates are fixedly connected to the outer surface of one side of the instrument main body, a lifting handle is fixedly connected between the outer surfaces of one sides of the two connecting plates, a storage room is opened inside the instrument main body, and a storage mechanism is slidably connected between the inner surfaces of both sides of the storage room.

[0004] However, this patent also has the following deficiencies. That is, the carrying method of traditional portable fault diagnosis electrical instruments and meters is single, only a fixed handle is provided. When in a narrow space or during long-distance transportation, it is difficult to adjust the holding position, the operation is inconvenient and easy to cause fatigue; there is no extra working plane for on-site operation, and the support structure cannot adapt to complex terrains, which limits the scope of use and efficiency. In view of this situation, a portable fault diagnosis electrical instrument and meter is specifically proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a portable fault diagnosis electrical instrument and meter to solve the problems raised in the above background art.

[0006] To solve the above technical problems, the present invention provides the following technical solution: A portable fault diagnosis electrical instrument and meter, including a box body. A meter main body is fixedly connected inside the box body, a box cover is rotatably connected to the outer surface of the box body, a top rib plate is fixedly connected to the outer surface of the box cover, a bottom rib plate is fixedly connected to the outer surface of the box body, a buckle is rotatably connected to the outer surface of the box body, a portable mechanism and a plane mechanism are fixedly connected to the outer surface of the box cover, and a lock mechanism is fixedly connected to the lower surface of the bottom rib plate. The portable mechanism includes: Bevel roller, a groove column one is fixedly connected to the outer surface of the bevel roller, a first spring is fixedly connected to the inner surface of the groove column one, a top plate clamping column is fixedly connected to the outer surface of the first spring, a notch sliding rod is clamped to the outer surface of the top plate clamping column, a clamping groove rib plate one is fixedly connected to the outer surface of the box cover, a clamping groove rib plate two is fixedly connected to the outer surface of the box body, a through hole one is opened in the interior of the clamping groove rib plate one, and the top plate clamping column is used for fixing the notch sliding rod.

[0007] According to the above technical solution, the portable mechanism further includes a rotating bent plate one, the rotating bent plate one is rotatably connected to the notch sliding rod, a first rotating rod is rotatably connected to the interior of the rotating bent plate one, a rotating bent plate two is rotatably connected to the outer surface of the first rotating rod, a rotating handrail is rotatably connected to the outer surface of the first rotating rod, and the rotating handrail is used for pulling the instrument body.

[0008] According to the above technical solution, the buckle is clamped to the outer surface of the box cover, the bevel roller is slidably connected to the top rib plate, the groove column one is slidably connected to the top plate clamping column, the notch sliding rod is slidably connected to the clamping groove rib plate one, the outer surface of the clamping groove rib plate one is in contact with the outer surface of the clamping groove rib plate two, the notch sliding rod is slidably connected to the clamping groove rib plate two, and the clamping groove rib plate one and the clamping groove rib plate two are used for adjusting the notch sliding rod.

[0009] According to the above technical solution, the outer surface of the rotating bent plate one is in contact with the outer surface of the clamping groove rib plate one, the outer surface of the rotating bent plate two is in contact with the outer surface of the rotating bent plate one, the outer surface of the rotating handrail is in contact with the outer surface of the rotating bent plate two, and the notch sliding rod is used for driving the rotating handrail.

[0010] According to the above technical solution, the planar mechanism includes a clamping groove column, the outer surface of the clamping groove column is fixedly connected to the upper surface of the box cover, a first clamping block is clamped to the interior of the clamping groove column, a groove column two is fixedly connected to the upper surface of the first clamping block, a threaded column is threadedly connected to the interior of the groove column two, a rotating plate is fixedly connected to the outer surface of the threaded column, an arc-shaped frame is rotatably connected to the outer surface of the threaded column, a first sliding rod is fixedly connected to the outer surface of the groove column two, a through hole connecting block is fixedly connected to the outer surface of the first rotating rod, a telescopic baffle is fixedly connected to the outer surface of the first clamping block, and the first sliding rod is used for pushing the arc-shaped frame.

[0011] According to the above technical solution, the outer surface of the clamping groove column is in contact with the outer surfaces of the top rib plate and the bottom rib plate, the through hole connecting block is slidably connected to the first sliding rod, the outer surface of the telescopic baffle is fixedly connected to the outer surface of the clamping groove column, and the telescopic baffle is used for protecting the clamping groove column.

[0012] According to the above technical solution, the latch mechanism includes a second sliding rod. A push plate and a clamping plate are fixedly connected to the outer surface of the second sliding rod. The clamping plate is clamped with the outer surface of the bottom rib plate. A second spring is fixedly connected to the outer surface of the clamping plate. A through-hole block is fixedly connected to the outer surface of the second spring. A sliding plate is clamped inside the bottom rib plate. A rubber elastic sheet is fixedly connected to the outer surface of the sliding plate. A groove column three is fixedly connected to the outer surface of the arc-shaped frame, and the groove column three is used to fix the second sliding rod.

[0013] According to the above technical solution, the through-hole block is slidably connected to the second sliding rod. The groove column three is clamped with the second sliding rod. The outer surface of the rubber elastic sheet is fixedly connected to the outer surface of the bottom rib plate, and the rubber elastic sheet is used to pull the sliding plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. For this portable fault diagnosis electrical instrument, by setting up the portable mechanism, the position adjustment of the rotating armrest can be flexibly achieved. Whether it is horizontally pulled, or vertically or obliquely pulled in special scenarios, it can be easily adapted to meet the portable needs of different positions. It also has a unique function that can act on the opening and closing part of the box body during the pulling process, making the box body tightly closed, effectively avoiding damage to the instrument caused by shaking, and comprehensively ensuring the safety and convenient use of the instrument.

[0015] 2. For this portable fault diagnosis electrical instrument, by setting up the convenient mechanism, the position adjustment of the rotating armrest can be accurately achieved. Whether it is moving forward and backward, left and right in the horizontal direction, it can be easily achieved. The height of the rotating armrest can also be flexibly adjusted. By lowering the height of the rotating armrest, the overall center of gravity of the instrument is reduced. When carrying it by hand, the stability is greatly improved, and the controllability is also more excellent, bringing a smoother and safer operation experience to the user.

[0016] 3. For this portable fault diagnosis electrical instrument, by setting up the planar mechanism, when the working space needs to be expanded, the box cover can be in a parallel position with the help of this planar mechanism, providing an additional and practical working surface for the operation of the instrument. It cooperates with the portable mechanism, and the box cover can follow the movement of the portable mechanism. Whether it is in different workstations indoors or in complex outdoor sites, the flexible adjustment of the support position can be easily achieved, greatly improving the convenience and adaptability of the instrument use.

[0017] 4. The portable fault diagnosis electrical instrument and meter, by setting a latch mechanism, when the box cover is smoothly rotated to the parallel position with the help of a relevant planar mechanism and becomes an additional working surface, the latch mechanism can quickly play a role and firmly lock the box cover to ensure that the working surface is in a stable state, avoid interference with the instrument operation due to shaking, and the latch mechanism has excellent flexibility. For different support positions, whether on a flat table or on a slightly inclined outdoor ground, it can automatically adapt and firmly fix the box cover to ensure the stable operation of the instrument. Brief Description of the Drawings

[0018] Figure 1 Schematic diagram of the main structure of the present invention; Figure 2 Cross-sectional view of the main structure of the present invention; Figure 3 Schematic diagram of the portable mechanism of the present invention; Figure 4 Partial mechanism cross-sectional view of the portable mechanism of the present invention; Figure 5 For Figure 4 Enlarged cross-sectional view of the structure at A in Figure 6 Cross-sectional view of the planar mechanism of the present invention; Figure 7 For Figure 6 Enlarged cross-sectional view of the structure at B in Figure 8 Cross-sectional view of the latch mechanism of the present invention; Figure 9 For Figure 8 Enlarged cross-sectional view of the structure at C in

[0019] In the figure: 1, box body; 2, instrument main body; 3, portable mechanism; 301, inclined plane roller; 302, groove column 1; 303, first spring; 304, top plate clamping column; 305, notch sliding rod; 306, clamping groove rib plate 1; 307, clamping groove rib plate 2; 308, through hole 1; 309, rotating bent plate 1; 310, rotating bent plate 2; 311, first rotating rod; 312, rotating handrail; 4, box cover; 5, top rib plate; 6, planar mechanism; 601, clamping groove column; 602, first clamping block; 603, groove column 2; 604, threaded column; 605, rotating plate; 606, arc-shaped frame; 607, first sliding rod; 608, through hole connecting block; 609, telescopic baffle; 7, bottom rib plate; 8, buckle; 9, latch mechanism; 901. Second sliding rod; 902. Push plate; 903. Clamping plate; 904. Second spring; 905. Through-hole block; 906. Sliding plate; 907. Rubber elastic sheet; 908. Grooved column three. Detailed implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0021] Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0022] In the present invention, unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Embodiment 1: Refer to Figures 1-5 , the present invention provides a technical solution: a portable fault diagnosis electrical instrument, including a box body 1, a meter main body 2 is fixedly connected inside the box body 1, a box cover 4 is rotatably connected to the outer surface of the box body 1, a top rib plate 5 is fixedly connected to the outer surface of the box cover 4, a bottom rib plate 7 is fixedly connected to the outer surface of the box body 1, a buckle 8 is rotatably connected to the outer surface of the box body 1, a portable mechanism 3 and a planar mechanism 6 are fixedly connected to the outer surface of the box cover 4, and a lock mechanism 9 is fixedly connected to the lower surface of the bottom rib plate 7. The portable mechanism 3 includes: An inclined surface roller 301, a grooved column one 302 is fixedly connected to the outer surface of the inclined surface roller 301, a first spring 303 is fixedly connected to the inner surface of the grooved column one 302, a top plate clamping column 304 is fixedly connected to the outer surface of the first spring 303, a notch sliding rod 305 is clamped to the outer surface of the top plate clamping column 304, a first card slot rib plate 306 is fixedly connected to the outer surface of the box cover 4, a second card slot rib plate 307 is fixedly connected to the outer surface of the box body 1, a through hole one 308 is opened inside the first card slot rib plate 306, and the top plate clamping column 304 is used to fix the notch sliding rod 305.

[0024] The portable mechanism 3 further includes a first rotating bent plate 309. The first rotating bent plate 309 is rotatably connected to the notch sliding rod 305. A first rotating rod 311 is rotatably connected inside the first rotating bent plate 309. A second rotating bent plate 310 is rotatably connected to the outer surface of the first rotating rod 311. A rotating handrail 312 is rotatably connected to the outer surface of the first rotating rod 311. The rotating handrail 312 is used to pull the instrument body 2.

[0025] The buckle 8 is snap-connected to the outer surface of the box cover 4. The inclined surface roller 301 is slidably connected to the top rib plate 5. The first groove column 302 is slidably connected to the top plate column 304. The notch sliding rod 305 is slidably connected to the first groove rib plate 306. The outer surface of the first groove rib plate 306 is in contact with the outer surface of the second groove rib plate 307. The notch sliding rod 305 is slidably connected to the second groove rib plate 307. The first groove rib plate 306 and the second groove rib plate 307 are used to adjust the notch sliding rod 305. The outer surface of the first rotating bent plate 309 is in contact with the outer surface of the first groove rib plate 306. The outer surface of the second rotating bent plate 310 is in contact with the outer surface of the first rotating bent plate 309. The outer surface of the rotating handrail 312 is in contact with the outer surface of the second rotating bent plate 310. The notch sliding rod 305 is used to drive the rotating handrail 312. Through holes 308 are provided inside both the first groove rib plate 306 and the second groove rib plate 307, enabling the position where the box body 1 and the box cover 4 are snap-connected to be pulled, and the box cover 4 at the horizontal position can also be pulled. Multiple through holes are symmetrically arranged at the horizontal position of the through hole 308, enabling the height and fixation of the first rotating rod 311 to be adjusted. After the two notch sliding rods 305 are fixed, they cooperate with the first rotating bent plate 309 and the second rotating bent plate 310 to achieve triangular fixation and ensure the stability of the structure.

[0026] The working principle of this embodiment is as follows: when the portable fault diagnosis electrical instrument is used, when the instrument is moved, the box body 1 and the box cover 4 are clamped together by the buckle 8, so that the instrument body 2 is fixed, and at the same time, the inclined roller 301 is pushed to slide inside the top rib plate 5 by the top plate clamping column 304, so that it coincides with the axis of the through hole 1 308. At this time, the top plate clamping column 304 is pushed by the first spring 303 to clamp the notch sliding rod 305, and the notch sliding rod 305 is fixed through the through hole 1 308. At this time, the other end of the notch sliding rod 305 is fixed by the symmetrically arranged top plate clamping column 304, and at the same time, the other notch sliding rod 305 is fixed by the symmetrically arranged portable mechanism 3, so that the rotating bent plate 1 309 and the rotating bent plate 1 309 are connected. The bent plate 2 310 is fixed in position, and at this time, the rotating armrest 312 is driven to rotate around the first rotating rod 311 and pull the instrument body 2. If it is necessary to adjust the position of the rotating armrest 312, the top plate clamping column 304 can be pushed outward in the opposite direction to disengage it from the clamping connection with the slot sliding rod 305, and the position of the slot sliding rod 305 can be adjusted, and the inclined roller 301 can be made to slide on the top rib plate 5 and the bottom rib plate 7, and the clamping connection of the slot sliding rod 305 is achieved through the above-mentioned movement process, thereby achieving the position adjustment of the rotating armrest 312. If it is necessary to adjust the height of the first rotating rod 311, the slot sliding rod 305 is moved inward and clamped through multiple groups of through holes 1 308 to adjust the height of the first rotating rod 311.

[0027] Example 2: Please refer to Figures 6-9 On the basis of the first embodiment, the present invention provides a technical solution: the plane mechanism 6 includes a slot column 601, the outer surface of the slot column 601 is fixedly connected to the upper surface of the box cover 4, the interior of the slot column 601 is clamped with a first clamping block 602, the upper surface of the first clamping block 602 is fixedly connected with a slot column 2 603, the internal thread of the slot column 2 603 is connected with a threaded column 604, the outer surface of the threaded column 604 is fixedly connected with a rotating plate 605, the outer surface of the threaded column 604 is rotatably connected with an arc frame 606, the outer surface of the slot column 2 603 is fixedly connected with a first sliding rod 607, the outer surface of the first rotating rod 311 is fixedly connected with a through-hole connecting block 608, the outer surface of the first clamping block 602 is fixedly connected with a telescopic baffle 609, and the first sliding rod 607 is used to push the arc frame 606.

[0028] The outer surface of the card slot column 601 is in contact with the outer surfaces of the top rib plate 5 and the bottom rib plate 7. The through-hole connecting block 608 is slidably connected to the first sliding rod 607. The outer surface of the telescopic baffle 609 is fixedly connected to the outer surface of the card slot column 601. The telescopic baffle 609 is used to protect the card slot column 601. When the through-hole connecting block 608 is slidably connected to the first sliding rod 607 and the position of the rotating armrest 312 needs to be adjusted, the clamping connection between the notch sliding rod 305 and the top plate clamping post 304 is released, so that the notch sliding rod 305 slides inside the card slot rib plate one 306 and the card slot rib plate two 307, while the symmetrically arranged notch sliding rods 305 remain fixed, causing the first rotating rod 311 to rise, thereby driving the through-hole connecting block 608 to rise, releasing the sliding connection with the first sliding rod 607, and enabling the portable mechanism 3 to move.

[0029] The lock mechanism 9 includes a second sliding rod 901. A push plate 902 and a clamping plate 903 are fixedly connected to the outer surface of the second sliding rod 901. The clamping plate 903 is clamped to the outer surface of the bottom rib plate 7. A second spring 904 is fixedly connected to the outer surface of the clamping plate 903. A through-hole clamping block 905 is fixedly connected to the outer surface of the second spring 904. A sliding plate 906 is clamped inside the bottom rib plate 7. A rubber elastic sheet 907 is fixedly connected to the outer surface of the sliding plate 906. A groove post three 908 is fixedly connected to the outer surface of the arc-shaped frame 606. The groove post three 908 is used to fix the second sliding rod 901.

[0030] The through-hole clamping block 905 is slidably connected to the second sliding rod 901. The groove post three 908 is clamped to the second sliding rod 901. The outer surface of the rubber elastic sheet 907 is fixedly connected to the outer surface of the bottom rib plate 7. The rubber elastic sheet 907 is used to pull the sliding plate 906. A telescopic plate is arranged on the outer surface of the through-hole clamping block 905 and is fixedly connected to the outer surface of the clamping plate 903, enabling it to protect the second spring 904 and the second sliding rod 901. At the same time, when it is necessary to release the parallel fixation of the box cover 4, the second sliding rod 901 can be driven to move through the push plate 902 to achieve the release of the parallel fixation of the box cover 4.

[0031] The working principle of this embodiment is as follows: When using this portable fault diagnosis electrical instrument, during use, the first rotating rod 311 drives the second groove column 603 to move, and makes the first clamping block 602 slide inside the clamping groove column 601, thereby adjusting the position of the arc-shaped frame 606. The rotation of the rotating plate 605 drives the threaded column 604 to rotate inside the second groove column 603, causing the arc-shaped frame 606 to move upward, and the symmetrically arranged threaded columns 604 support the arc-shaped frame 606. When the axis of the third groove column 908 coincides with the axis of the second sliding rod 901, the rotation of the rotating plate 605 stops. After the box cover 4 rotates, the lower surface of its arc-shaped frame 606 is flush with the lower surface of the box body 1, realizing the horizontal support for the box cover 4. The movement of the first rotating rod 311 drives the through-hole connecting block 608 to move, thereby driving the second groove column 603 to move. At the same time, the telescopic baffle 609 protects the clamping groove column 601. At the same time, the sliding plate 906 is pulled outwards, and the second spring 904 drives the second sliding rod 901 to slide inside the through-hole clamping block 905, making the second sliding rod 901 engage with the third groove column 908, realizing the fixation of the horizontal position of the box cover 4. The length of the second sliding rod 901 adapts to the movement of the arc-shaped frame 606 relative to the third groove column 908, thereby realizing the fixation of the arc-shaped frame 606 at different positions and adapting to different environments.

[0032] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0033] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A portable fault diagnosis electrical instrument, comprising a box body (1), an instrument main body (2) is fixedly connected inside the box body (1), a box cover (4) is rotatably connected to the outer surface of the box body (1), a top rib plate (5) is fixedly connected to the outer surface of the box cover (4), a bottom rib plate (7) is fixedly connected to the outer surface of the box body (1), a buckle (8) is rotatably connected to the outer surface of the box body (1), a portable mechanism (3) and a planar mechanism (6) are fixedly connected to the outer surface of the box cover (4), and a lock mechanism (9) is fixedly connected to the lower surface of the bottom rib plate (7), characterized in that, The portable mechanism (3) includes: An inclined plane roller (301), a first grooved column (302) is fixedly connected to the outer surface of the inclined plane roller (301), a first spring (303) is fixedly connected to the inner surface of the first grooved column (302), a top plate clamping column (304) is fixedly connected to the outer surface of the first spring (303), a grooved opening sliding rod (305) is clamped to the outer surface of the top plate clamping column (304), a first grooved rib plate (306) is fixedly connected to the outer surface of the box cover (4), a second grooved rib plate (307) is fixedly connected to the outer surface of the box body (1), a first through hole (308) is formed inside the first grooved rib plate (306), and the top plate clamping column (304) is used for fixing the grooved opening sliding rod (305).

2. The portable fault diagnosis electrical instrument according to claim 1, characterized in that: The portable mechanism (3) further includes a first rotating bent plate (309), the first rotating bent plate (309) is rotatably connected to the grooved opening sliding rod (305), a first rotating rod (311) is rotatably connected inside the first rotating bent plate (309), a second rotating bent plate (310) is rotatably connected to the outer surface of the first rotating rod (311), a rotating handrail (312) is rotatably connected to the outer surface of the first rotating rod (311), and the rotating handrail (312) is used for pulling the instrument main body (2).

3. The portable fault diagnosis electrical instrument according to claim 1, characterized in that: The buckle (8) is clamped to the outer surface of the box cover (4), the inclined plane roller (301) is slidably connected to the top rib plate (5), the first grooved column (302) is slidably connected to the top plate clamping column (304), the grooved opening sliding rod (305) is slidably connected to the first grooved rib plate (306), the outer surface of the first grooved rib plate (306) is in contact with the outer surface of the second grooved rib plate (307), the grooved opening sliding rod (305) is slidably connected to the second grooved rib plate (307), and the first grooved rib plate (306) and the second grooved rib plate (307) are used for adjusting the grooved opening sliding rod (305).

4. The portable fault diagnosis electrical instrument according to claim 2, wherein: The outer surface of the first rotating bent plate (309) is in contact with the outer surface of the first grooved rib plate (306), the outer surface of the second rotating bent plate (310) is in contact with the outer surface of the first rotating bent plate (309), the outer surface of the rotating handrail (312) is in contact with the outer surface of the second rotating bent plate (310), and the grooved opening sliding rod (305) is used for driving the rotating handrail (312).

5. The portable fault diagnosis electrical instrument according to claim 2, characterized in that: The planar mechanism (6) includes a slot column (601), the outer surface of the slot column (601) is fixedly connected to the upper surface of the box cover (4), a first clamping block (602) is clamped inside the slot column (601), a second slot column (603) is fixedly connected to the upper surface of the first clamping block (602), a threaded column (604) is threadedly connected inside the second slot column (603), a rotating plate (605) is fixedly connected to the outer surface of the threaded column (604), an arc-shaped frame (606) is rotatably connected to the outer surface of the threaded column (604), a first sliding rod (607) is fixedly connected to the outer surface of the second slot column (603), a through-hole connecting block (608) is fixedly connected to the outer surface of the first rotating rod (311), a telescopic baffle (609) is fixedly connected to the outer surface of the first clamping block (602), and the first sliding rod (607) is used to push the arc-shaped frame (606).

6. The portable fault diagnosis electrician instrument according to claim 5, wherein: The outer surface of the slot column (601) is in contact with the outer surfaces of the top rib plate (5) and the bottom rib plate (7), the through-hole connecting block (608) is slidably connected to the first sliding rod (607), the outer surface of the telescopic baffle (609) is fixedly connected to the outer surface of the slot column (601), and the telescopic baffle (609) is used to protect the slot column (601).

7. The portable fault diagnosis electrical instrument according to claim 5, characterized in that: The lock mechanism (9) includes a second sliding rod (901), a push plate (902) and a clamping plate (903) are fixedly connected to the outer surface of the second sliding rod (901), the clamping plate (903) is clamped to the outer surface of the bottom rib plate (7), a second spring (904) is fixedly connected to the outer surface of the clamping plate (903), a through-hole clamping block (905) is fixedly connected to the outer surface of the second spring (904), a sliding plate (906) is clamped inside the bottom rib plate (7), a rubber elastic sheet (907) is fixedly connected to the outer surface of the sliding plate (906), a third slot column (908) is fixedly connected to the outer surface of the arc-shaped frame (606), and the third slot column (908) is used to fix the second sliding rod (901).

8. The portable fault diagnosis electrical instrument according to claim 7, characterized in that: The through-hole clamping block (905) is slidably connected to the second sliding rod (901), the third slot column (908) is clamped to the second sliding rod (901), the outer surface of the rubber elastic sheet (907) is fixedly connected to the outer surface of the bottom rib plate (7), and the rubber elastic sheet (907) is used to pull the sliding plate (906).

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