Electrical equipment detection instrument

Abstract

The utility model relates to the technical field of electrical equipment detection, in particular to an electrical equipment detection instrument, which comprises a universal meter and connectors, a plurality of interfaces are arranged on the upper surface of the universal meter, the connectors are connected with the interfaces in an inserted mode, symmetrical sliding grooves are arranged on two sides of the universal meter, and movable grooves are arranged on the inner walls of the sliding grooves. Compared with the prior art, by arranging the sliding block, the sliding groove, the movable rod, the first spring and the pressing rod, the pressing rod is pushed to enable the sliding block to drive the movable rod to move, the movable rod stretches the first spring, then the connector is connected with the connector in an inserted mode, the first spring rebounds, the pressing rod abuts against the upper surface of the connector, and the connector is limited; when a connector needs to be installed and a connector needs to be replaced, a pressing rod is pushed to be separated from the connector, then the connector is replaced, the structure can be fixed through the pressing rod by adjusting a limiting mechanism, meanwhile, a worker can replace the structure conveniently, and fixing and replacing of the connector are more convenient and faster.

Description

Technical Field

[0001] This utility model relates to the field of power equipment testing technology, specifically to power equipment testing instruments. Background Technology

[0002] Electrical equipment mainly includes two categories: power generation equipment and power supply equipment. Power generation equipment mainly includes power plant boilers, steam turbines, gas turbines, water turbines, generators, transformers, etc. Power supply equipment mainly includes transmission lines of various voltage levels, instrument transformers, and contactors. Among them, the multimeter is one of the electrical equipment testing instruments. It is used to detect whether there is leakage in the electrical equipment. Generally, a multimeter can measure DC current, DC voltage, AC current, AC voltage, resistance, and audio level, etc. Some multimeters can also measure AC current, capacitance, inductance, and some parameters of semiconductors.

[0003] The prior art, disclosed in CN217787169U, discloses a testing instrument for power equipment maintenance, comprising a multimeter, a clamping mechanism, and test leads. Each test lead has a connector at its end, which is installed in an interface on the upper surface of the multimeter, facilitating connection between the test leads and the multimeter for easy leakage current detection of electrical equipment. The clamping mechanism is installed between the multimeter and the connector, further increasing the tightness of the connection and reducing the likelihood of poor contact due to external forces affecting the testing process, thus improving the safety and stability of leakage current detection. By combining the multimeter, clamping mechanism, and test leads, this invention further increases the tightness of the connection between the connector and the multimeter without affecting the multimeter's leakage current detection capabilities, reducing the likelihood of loosening and poor contact due to external forces during electrical equipment testing, and minimizing factors affecting the test leads' ability to detect leakage current in electrical equipment.

[0004] Through the above configuration, the existing testing instrument, by combining the multimeter, clamping mechanism, and test leads, can further increase the tightness of the connection between the connector and the multimeter without affecting the multimeter's ability to detect leakage current in electrical equipment. This reduces the probability of loosening and poor contact due to external force during the testing process, and minimizes factors affecting the test leads' ability to detect leakage current in electrical equipment. However, the existing testing instrument has the following drawbacks during operation:

[0005] In the existing testing instruments, the pressure plate is tightened by rotating the limit bolts to fix the joint. However, when it is necessary to install the joint or change the interface, the bolts must be turned to loosen the pressure plate in order to adjust the joint. Usually, tools are needed to fix the limit bolts, which is very inconvenient and cumbersome. Utility Model Content

[0006] The present invention aims to provide a power equipment testing instrument, which is mainly used to solve the technical problem that the existing technology is very troublesome to tighten the limit bolts and requires the use of tools for fixing.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0008] The electrical equipment testing instrument includes a multimeter and a connector. The multimeter has multiple interfaces on its upper surface, and the connector is plugged into the interfaces. The multimeter has symmetrical sliding grooves on both sides, and the inner wall of the sliding groove has a movable groove. A first spring is fixed to one end of the inner wall of the movable groove, and a movable rod is fixed to the other end of the first spring. A slider is fixed to the end of the movable rod away from the first spring. The slider is slidably connected to the inner wall of the sliding groove. A pressure rod is fixed between two sliders, and the lower surface of the pressure rod contacts the upper surface of the connector. The inner wall of the sliding groove has a vertical groove, and a limit mechanism is installed inside the vertical groove.

[0009] The working principle and beneficial effects of this utility model:

[0010] 1. Working principle: When it is necessary to fix the connector, first push the pressure rod, so that the pressure rod drives the slider to move, the slider drives the movable rod to move, the movable rod stretches the first spring, so that the slider moves to the limit rod, and the limit groove on the slider is engaged with the limit rod. Then, insert the connector into the interface, and then adjust the limit mechanism so that the limit rod disengages from the limit groove. Under the action of the first spring, the slider drives the pressure rod to move, so that the pressure rod moves to the upper surface of the connector and contacts it, thus completing the fixation.

[0011] 2. Beneficial effects:

[0012] Existing technology, by combining a multimeter, a clamping mechanism, and test leads, can further enhance the tightness of the connection between the connector and the multimeter without affecting the multimeter's ability to detect leakage current in electrical equipment. This reduces the probability of loosening and poor contact due to external forces during electrical equipment testing, and minimizes factors affecting the test leads' ability to detect leakage current. However, existing testing instruments use a limit bolt to tighten the clamping plate, thus fixing the connector. But when installing a connector or changing the interface, the bolt must be loosened to loosen the clamping plate before the connector can be adjusted. Tools are usually required to adjust the limit bolt. The traditional method of fixing the connector is inconvenient and requires tools, making the process cumbersome. This solution addresses this by using a slider, groove, movable rod, first spring, and pressure rod. Pushing the pressure rod causes the slider to move the movable rod, which in turn stretches the first spring. After the connector and interface are inserted, the first spring rebounds, causing the pressure rod to abut against the upper surface of the connector, thus limiting its position. When it's necessary to install the connector or replace the interface, pushing the pressure rod disengages it from the connector, allowing for easy replacement. Adjusting the limiting mechanism allows the pressure rod to fix the structure, facilitating structural replacement and making connector fixing and replacement much more convenient and efficient.

[0013] Preferably, the limiting mechanism includes a limiting rod that is slidably connected to the inner wall of the vertical groove. A second spring is fixedly connected to one end of the inner wall of the vertical groove, and the other end of the second spring is fixedly connected to the limiting rod. A toothed groove is formed on one side of the limiting rod, and a rotating groove is formed on the inner wall of the vertical groove. A gear is rotatably connected to the inner wall of the rotating groove, and the gear meshes with the toothed groove. A rotating rod is fixedly connected to one side of the gear, and the rotating rod passes through the outer wall of the multimeter and is rotatably connected to it. A rotating block is fixedly connected to the end of the rotating rod away from the gear. A limiting groove is formed on the lower surface of the slider, and the limiting rod is inserted into the limiting groove. By setting the limiting mechanism, the pressure rod can be fixed, avoiding the need to push the pressure rod by hand when changing the connector, thus freeing up the hands and facilitating the replacement of the connector.

[0014] Preferably, a transmission rod is fixedly connected to one side of each of the two gears away from the rotating rod, and the transmission rod is rotatably connected inside the multimeter. By setting the transmission rod, rotating one rotating block will cause the other rotating block to rotate along with it, facilitating the adjustment of the limit mechanism.

[0015] Preferably, multiple fixing plates are fixed to the lower surface of the pressure rod, with the opposite sides of the fixing plates contacting the outer wall of the joint. By setting the fixing plates, the joint can be fixed, preventing the joint from rotating left or right and avoiding damage to the joint.

[0016] Preferably, one end of the limiting rod away from the tooth groove has a slope. By setting the slope, the slider can easily press the limiting rod, causing the limiting rod to retract into the vertical groove and allowing the limiting rod to insert into the limiting groove.

[0017] Preferably, the outer wall of the rotating block has anti-slip texture. By setting the anti-slip texture, the friction between the fingers and the rotating block can be increased, preventing slippage. Attached Figure Description

[0018] Figure 1 This is a structural diagram of the present utility model patent;

[0019] Figure 2 This is a side sectional view of the structure of this utility model patent;

[0020] Figure 3 This is a front cross-sectional view of the structure of this utility model patent;

[0021] Figure 4 This utility model patent Figure 2 Structural diagram at point A in the middle.

[0022] The reference numerals in the accompanying drawings of the instruction manual include: 1. Multimeter; 2. Connector; 3. Slide groove; 4. Movable groove; 5. First spring; 6. Movable rod; 7. Slider; 8. Pressure rod; 9. Interface; 10. Vertical groove; 11. Limiting rod; 12. Second spring; 13. Gear groove; 14. Rotary groove; 15. Gear; 16. Rotating rod; 17. Rotating block; 18. Limiting groove; 19. Transmission rod; 20. Fixing plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1-4As shown, the power equipment testing instrument includes a multimeter 1 and a connector 2. The upper surface of the multimeter 1 has multiple interfaces 9, and the connector 2 is plugged into the interfaces 9. Symmetrical sliding grooves 3 are formed on both sides of the multimeter 1. A movable groove 4 is formed on the inner wall of the sliding groove 3. A first spring 5 is fixedly connected to one end of the inner wall of the movable groove 4, and a movable rod 6 is fixedly connected to the other end of the first spring 5. A slider 7 is fixedly connected to the end of the movable rod 6 away from the first spring 5. The slider 7 is slidably connected to the inner wall of the sliding groove 3. A pressure rod 8 is fixedly connected between two sliders 7. The lower surface of the pressure rod 8 contacts the upper surface of the connector 2. Multiple fixing plates 20 are fixedly connected to the lower surface of the pressure rod 8. The opposite sides of the fixing plates 20 contact the outer wall of the connector 2. A vertical groove 10 is formed on the inner wall of the sliding groove 3. A limit mechanism is installed inside the vertical groove 10. The positioning mechanism includes a limiting rod 11, which is slidably connected to the inner wall of the vertical groove 10. A second spring 12 is fixedly connected to one end of the inner wall of the vertical groove 10, and the other end of the second spring 12 is fixedly connected to the limiting rod 11. A toothed groove 13 is provided on one side of the limiting rod 11. A rotating groove 14 is provided on the inner wall of the vertical groove 10. A gear 15 is rotatably connected to the inner wall of the rotating groove 14. The gear 15 meshes with the toothed groove 13. A rotating rod 16 is fixedly connected to one side of the gear 15. The rotating rod 16 passes through the outer wall of the multimeter 1 and is rotatably connected to it. A rotating block 17 is fixedly connected to the end of the rotating rod 16 away from the gear 15. A limiting groove 18 is provided on the lower surface of the slider 7. The limiting rod 11 is inserted into the limiting groove 18. A transmission rod 19 is fixedly connected to one side of the two gears 15 away from the rotating rod 16. The transmission rod 19 is rotatably connected inside the multimeter 1.

[0025] As can be seen from the above, the specific embodiments of this utility model are as follows:

[0026] When it is necessary to fix the connector 2, first push the pressure rod 8, so that the pressure rod 8 drives the slider 7 to move. The slider 7 drives the movable rod 6 to move. The movable rod 6 stretches the first spring 5, so that the slider 7 moves to the limiting rod 11 and the limiting groove 18 on the slider 7 engages with the limiting rod 11. Then, insert the connector 2 into the interface 9. Then rotate the rotating block 17, so that the rotating block 17 drives the rotating rod 16 to move. The rotating rod 16 drives the gear 15 to rotate. The rotation of the gear 15 drives the transmission rod 19 to rotate. The transmission rod 19 drives another gear 15 to rotate. The rotation of the gear 15 drives the limiting rod 11 to move, so that the limiting rod 11 squeezes the second spring 12 and retracts into the vertical groove 10. At the same time, the limiting rod 11 disengages from the limiting groove 18. At this time, the slider 7 is driven by the elastic force of the first spring 5 to move the pressure rod 8, so that the pressure rod 8 moves to the upper surface of the connector 2 and contacts it, thus completing the fixation.

[0027] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A power equipment testing instrument, comprising a multimeter (1) and a connector (2), characterized in that, The upper surface of the multimeter (1) is provided with multiple interfaces (9). The connector (2) is plugged into the interface (9). Symmetrical slide grooves (3) are provided on both sides of the multimeter (1). The inner wall of the slide groove (3) is provided with a movable groove (4). One end of the inner wall of the movable groove (4) is fixedly connected to a first spring (5). The other end of the first spring (5) is fixedly connected to a movable rod (6). The end of the movable rod (6) away from the first spring (5) is fixedly connected to a slider (7). The slider (7) is slidably connected to the inner wall of the slide groove (3). A pressure rod (8) is fixedly connected between the two sliders (7). The lower surface of the pressure rod (8) is in contact with the upper surface of the connector (2). The inner wall of the slide groove (3) is provided with a vertical groove (10). A limit mechanism is installed inside the vertical groove (10).

2. The power equipment testing instrument according to claim 1, characterized in that: The limiting mechanism includes a limiting rod (11), which is slidably connected to the inner wall of the vertical groove (10). A second spring (12) is fixedly connected to one end of the inner wall of the vertical groove (10), and the other end of the second spring (12) is fixedly connected to the limiting rod (11). A toothed groove (13) is provided on one side of the limiting rod (11), and a rotating groove (14) is provided on the inner wall of the vertical groove (10). A gear (15) is rotatably connected to the inner wall of the rotating groove (14), and the gear (15) meshes with the toothed groove (13). A rotating rod (16) is fixedly connected to one side of the gear (15), and the rotating rod (16) passes through the outer wall of the multimeter (1) and is rotatably connected to it. A rotating block (17) is fixedly connected to the end of the rotating rod (16) away from the gear (15). A limiting groove (18) is provided on the lower surface of the slider (7), and the limiting rod (11) is inserted into the limiting groove (18).

3. The power equipment testing instrument according to claim 2, characterized in that: One side of the two gears (15) away from the rotating rod (16) is fixed to a transmission rod (19), which is located inside the multimeter (1) and rotated.

4. The power equipment testing instrument according to claim 1, characterized in that: Multiple fixing plates (20) are fixed to the lower surface of the pressure rod (8), and the opposite sides of the fixing plates (20) are in contact with the outer wall of the joint (2).

5. The power equipment testing instrument according to claim 2, characterized in that: One end of the limiting rod (11) away from the tooth groove (13) has a slope.

6. The power equipment testing instrument according to claim 2, characterized in that: The outer wall of the rotating block (17) is provided with anti-slip texture.

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