Portable test instrument for electric power overhaul

Abstract

The utility model discloses a portable test instrument for electric power overhaul, and belongs to the technical field of electric power overhaul. A portable test instrument for electric power overhaul comprises a box body, an insulation resistance tester is arranged in the box body, the top of the box body is rotatably connected with a box cover, and the top of the box cover is rotatably connected with two straight rods. According to the portable testing instrument for electric power overhaul, a user rotates a straight rod in the direction away from a cushion block, a second sliding rod is extruded by a second sliding groove in the process, the second sliding rod pulls a movable rod towards the outer portion of the straight rod, the movable rod drives a sleeve and a bent rod to rotate through a first sliding groove and a first sliding rod, and after the straight rod rotates by 180 degrees, the bent rod is driven to rotate. The bent rod on the straight rod rotates by 90 degrees, a user can hang the box body in front of the chest of the user through the bent rod, the box body does not need to be held by one hand, the portable purpose is achieved, the user can conveniently hold other devices by hand, and resetting can be achieved by reversely rotating the straight rod.

Description

Technical Field

[0001] The utility model relates to the technical field of power maintenance, and more specifically to a portable testing instrument for power maintenance. Background Art

[0002] Electric power maintenance is mainly divided into the following maintenance parts: power generation part, power supply part, substation part and distribution part. Each part is managed by specialized personnel, who are mainly responsible for daily equipment installation and maintenance, troubleshooting, line inspection, etc. It is a profession that maintains the power grid and its ancillary equipment, and requires high professionalism.

[0003] The insulation resistance tester, also known as the megohmmeter, is a measuring instrument commonly used by electricians. It is mainly used to check the insulation resistance of electrical equipment, household appliances or electrical lines to the ground and between phases to ensure that these equipment, appliances and lines are working in normal condition and avoid accidents such as electric shock injuries and equipment damage.

[0004] Most existing insulation resistance testers are installed in a box and protected by a box cover. A rotatable handle is provided on the outside of the box to facilitate the user to carry it. However, when the user transfers the insulation resistance tester by the handle, one hand will always be occupied. If the user needs to carry other equipment, there will be great limitations, and the purpose of portability cannot be achieved. Utility Model Content

[0005] The purpose of the utility model is to provide a portable test instrument for power maintenance to solve the problems raised in the above background technology:

[0006] Most existing insulation resistance testers are installed in a box and protected by a box cover. A rotatable handle is provided on the outside of the box to facilitate the user to carry it. However, when the user transfers the insulation resistance tester by the handle, one hand will always be occupied. If the user needs to carry other equipment, there will be great limitations, and the purpose of portability cannot be achieved.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A portable test instrument for power maintenance, comprising a box, an insulation resistance tester is arranged inside the box, the model of the insulation resistance tester is PX2008, the top of the box is rotatably connected to a box cover, the top of the box cover is rotatably connected to a straight rod, there are two straight rods, the two straight rods are symmetrically distributed, the inside of the straight rod is rotatably connected to a sleeve, the outside of the sleeve is fixedly connected to a bent rod, the diameter of the straight rod is the same as the diameter of the bent rod, the bent rod can be hung on the shoulder of the user, the inside of the sleeve is slidably connected to a movable rod, the movable rod The rod is slidably connected to the straight rod, and a first sliding groove is provided on the inner wall of the sleeve, and a first sliding rod is slidably connected inside the first sliding groove, and the first sliding rod is fixedly connected to the movable rod. A second sliding groove is provided on the upper surface of the box cover, and a second sliding rod is slidably connected inside the second sliding groove, and the second sliding rod is fixedly connected to the movable rod. The second sliding groove includes a large arc groove, a small arc groove and a strip groove. The large arc groove is cocentrically arranged with the rotation axis of the straight rod, the small arc groove is eccentrically arranged with the rotation axis of the straight rod, and the strip groove is on the tangent of the large arc groove and the small arc groove.

[0009] Preferably, a groove is provided inside the straight rod, and a limiting rod is slidably connected inside the groove. A spring is provided between the limiting rod and the groove, one end of the spring is fixedly connected to the straight rod, and the other end of the spring is fixedly connected to the limiting rod. A limiting groove is provided on the upper surface of the box cover, and the limiting groove is used in conjunction with the limiting rod. The limiting groove is provided with two limiting rods, and when the limiting groove is engaged with the limiting groove, the straight rod can be positioned after rotation.

[0010] Preferably, an annular plate is sleeved on the outside of the sleeve, and the annular plate is fixedly connected to the sleeve. An annular groove is opened inside the straight rod, and the annular groove is used in conjunction with the annular plate. The annular groove and the annular plate limit the sleeve to prevent the sleeve from detaching from the straight rod.

[0011] Preferably, the first slide groove is a spiral structure, and when the movable rod slides, the movable rod squeezes the inner wall of the first slide groove through the first slide rod, driving the sleeve to rotate ninety degrees, and the sleeve then drives the bent rod to rotate ninety degrees.

[0012] Preferably, the outer wall of the movable rod fits with the inner wall of the sleeve, which can prevent the movable rod from shaking in the sleeve.

[0013] Preferably, a cushion block is fixedly connected to the top of the box cover and between the two straight rods. When the user hangs the box on the chest through the curved rod, the cushion block will support the box to prevent the straight rods from directly pressing on the user's chest and causing discomfort.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1) When the portable test instrument for power maintenance is in use, the user rotates the straight rod in the direction away from the pad. During the process, the second slide bar will be squeezed by the second slide groove, so that the second slide bar pulls the movable rod to the outside of the straight rod, and the movable rod drives the sleeve and the bent rod to rotate through the first slide groove and the first slide bar. After the straight rod rotates 180 degrees, the bent rod on the straight rod rotates 90 degrees. The user can hang the box on his chest through the bent rod, and no longer needs to occupy one hand to carry the box, which achieves the purpose of portability and is also convenient for users to carry other equipment. The straight rod can be reset by rotating it in the opposite direction.

[0016] 2) When the portable test instrument for power maintenance is in use, after the straight rod is rotated outward to unfold or rotated inward to fold, the limit rod on the straight rod will engage with the corresponding limit groove due to the elastic force of the spring. After the limit rod engages with the limit groove, the straight rod can be positioned to prevent the straight rod from automatically rotating when the bent rod is hung on the user's shoulder, thereby ensuring the overall stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the bent rod of the utility model after being unfolded;

[0018] Figure 2 It is a structural schematic diagram of the bending rod of the utility model before it is unfolded;

[0019] Figure 3 It is a structural schematic diagram of the second chute of the utility model;

[0020] Figure 4 It is a cross-sectional schematic diagram of the straight rod of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the first chute of the utility model;

[0022] Figure 6 It is a structural schematic diagram of the first sliding rod of the utility model;

[0023] Figure 7 It is a structural schematic diagram of the limit rod of the utility model.

[0024] Explanation of the numbers in the figure: 1. Box body; 2. Box cover; 3. Straight rod; 4. Sleeve; 5. Bent rod; 6. Movable rod; 7. First slide groove; 8. First slide rod; 9. Second slide groove; 10. Second slide rod; 11. Groove; 12. Limit rod; 13. Spring; 14. Limit groove; 15. Annular plate; 16. Annular groove; 17. Pad. DETAILED DESCRIPTION

[0025] Most existing insulation resistance testers are installed in a box and protected by a box cover. A rotatable handle is provided on the outside of the box to facilitate the user to carry it. However, when the user transfers the insulation resistance tester by the handle, one hand will always be occupied. If the user needs to carry other equipment, there will be great limitations and the purpose of portability cannot be achieved. The following solution is used to solve this problem.

[0026] See also Figures 1 to 7 A portable test instrument for power maintenance includes a box body 1, an insulation resistance tester is arranged inside the box body 1, and the model of the insulation resistance tester is PX2008. The insulation resistance tester is mainly used to measure the insulation resistance of electrical equipment to evaluate the insulation state of the equipment and ensure safe operation. The above is the existing known technology and will not be described in detail. The top of the box body 1 is rotatably connected to a box cover 2, and the top of the box cover 2 is rotatably connected to a straight rod 3. There are two straight rods 3, and the two straight rods 3 are symmetrically distributed. The inside of the straight rod 3 is rotatably connected to a sleeve 4, and the outside of the sleeve 4 is fixedly connected to a bent rod 5. The diameter of the straight rod 3 is the same as the diameter of the bent rod 5, and the bent rod 5 can be hung on On the user's shoulder, the inner part of the sleeve 4 is slidably connected with a movable rod 6, and the movable rod 6 is slidably connected to the straight rod 3. The inner side wall of the sleeve 4 is provided with a first sliding groove 7, and the inner part of the first sliding groove 7 is slidably connected with a first sliding rod 8, and the first sliding rod 8 is fixedly connected to the movable rod 6. The upper surface of the box cover 2 is provided with a second sliding groove 9, and the inner part of the second sliding groove 9 is slidably connected with a second sliding rod 10, and the second sliding rod 10 is fixedly connected to the movable rod 6. The second sliding groove 9 includes a large arc groove, a small arc groove and a strip groove. The large arc groove is cocentrically arranged with the rotation axis of the straight rod 3, the small arc groove is eccentrically arranged with the rotation axis of the straight rod 3, and the strip groove is on the tangent of the large arc groove and the small arc groove.

[0027] A groove 11 is provided inside the straight rod 3, and a limiting rod 12 is slidably connected inside the groove 11. A spring 13 is provided between the limiting rod 12 and the groove 11. One end of the spring 13 is fixedly connected to the straight rod 3, and the other end of the spring 13 is fixedly connected to the limiting rod 12. A limiting groove 14 is provided on the upper surface of the box cover 2, and the limiting groove 14 is used in conjunction with the limiting rod 12. There are two limiting grooves 14, which are distributed on opposite sides of the rotation axis of the straight rod 3. When the elastic force of the spring 13 drives the limiting rod 12 to engage with the limiting groove 14, the rotated straight rod 3 can be positioned.

[0028] An annular plate 15 is sleeved on the outside of the sleeve 4, and the annular plate 15 is fixedly connected to the sleeve 4. An annular groove 16 is opened inside the straight rod 3, and the annular groove 16 is used together with the annular plate 15. The annular groove 16 and the annular plate 15 limit the sleeve 4 to prevent the sleeve 4 from detaching from the straight rod 3, and can also ensure the stability of the sleeve 4 when rotating.

[0029] The first slide groove 7 is a spiral structure. When the movable rod 6 slides, the movable rod 6 will squeeze the inner wall of the first slide groove 7 through the first slide rod 8. Since the first slide groove 7 is a spiral structure, the sliding movable rod 6 can drive the sleeve 4 to rotate ninety degrees, and the sleeve 4 then drives the bent rod 5 to rotate ninety degrees.

[0030] The outer wall of the movable rod 6 fits with the inner wall of the sleeve 4 , which can ensure the stability of the movable rod 6 when sliding in the sleeve 4 and prevent the movable rod 6 from shaking in the sleeve 4 .

[0031] A cushion block 17 is fixedly connected to the top of the box cover 2 and between the two straight rods 3. When the user hangs the box 1 on the chest through the curved rod 5, the cushion block 17 will be placed between the user's chest and the box 1, thereby supporting the box 1 and preventing the straight rods 3 from directly pressing on the user's chest and causing discomfort.

[0032] The use steps of the utility model: when the portable test instrument for power maintenance is in use, generally, the straight rod 3 and the bent rod 5 are stored in the upper surface of the box cover 2, and the user can directly rotate the straight rod 3 in the direction away from the cushion block 17, and the straight rod 3 drives the movable rod 6 to rotate at the same time. At this time, the second slide bar 10 at the bottom of the movable rod 6 is located in the large arc groove of the second slide groove 9. With the rotation of the straight rod 3, the second slide bar 10 will enter the strip groove of the second slide groove 9. At this time, the second slide bar 10 will be squeezed by the strip groove, so that the second slide bar 10 pulls the movable rod 6 toward the outside of the straight rod 3. In the process, the movable rod 6 will drive the first slide bar 8 to squeeze the sleeve The inner wall of the first slide groove 7 on the tube 4, since the first slide groove 7 is a spiral structure, the movable rod 6 will drive the sleeve 4 to rotate through the first slide groove 7 and the first slide rod 8, so that the sleeve 4 drives the curved rod 5 to rotate. When the second slide rod 10 on the movable rod 6 enters the small arc groove of the second slide groove 9, the movable rod 6 is no longer pulled. At this time, the straight rod 3 rotates 180 degrees, and the curved rod 5 on the straight rod 3 rotates 90 degrees. The user can hang the box 1 on his chest through the curved rod 5, and no longer needs to occupy one hand to carry the box 1, thereby achieving the purpose of portability. It is also convenient for the user to carry other equipment, and the straight rod 3 can be reset by rotating it in the opposite direction.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A portable test instrument for power maintenance, comprising a box (1), an insulation resistance tester is arranged inside the box (1), and a box cover (2) is rotatably connected to the top of the box (1), characterized in that: The top of the box cover (2) is rotatably connected to a straight rod (3), there are two straight rods (3), and the two straight rods (3) are symmetrically distributed. The straight rod (3) is rotatably connected to a sleeve (4) inside, and a bent rod (5) is fixedly connected to the outside of the sleeve (4). The sleeve (4) is slidably connected to a movable rod (6) inside, and the movable rod (6) is slidably connected to the straight rod (3). The inner side wall of the sleeve (4) is provided with a first sliding groove (7), and the first sliding rod (8) is slidably connected inside the first sliding groove (7), and the first sliding rod (8) is fixedly connected to the movable rod (6). The upper surface of the box cover (2) is provided with a second sliding groove (9), and the second sliding groove (9) is slidably connected to a second sliding rod (10), and the second sliding rod (10) is fixedly connected to the movable rod (6).

2. A portable test instrument for power maintenance according to claim 1, characterized in that: A groove (11) is provided inside the straight rod (3), and a limiting rod (12) is slidably connected inside the groove (11). A spring (13) is provided between the limiting rod (12) and the groove (11), and one end of the spring (13) is fixedly connected to the straight rod (3), and the other end of the spring (13) is fixedly connected to the limiting rod (12). A limiting groove (14) is provided on the upper surface of the box cover (2), and the limiting groove (14) is used in conjunction with the limiting rod (12).

3. A portable test instrument for power maintenance according to claim 1, characterized in that: The outer part of the sleeve (4) is provided with an annular plate (15), and the annular plate (15) is fixedly connected to the sleeve (4). The inner part of the straight rod (3) is provided with an annular groove (16), and the annular groove (16) is used in conjunction with the annular plate (15).

4. A portable test instrument for power maintenance according to claim 1, characterized in that: The first sliding groove (7) is a spiral structure.

5. The portable test instrument for power maintenance according to claim 1, characterized in that: The outer side wall of the movable rod (6) is in contact with the inner side wall of the sleeve (4).

6. A portable test instrument for power maintenance according to claim 1, characterized in that: A cushion block (17) is fixedly connected to the top of the box cover (2) and located between the two straight rods (3).

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