Portable multifunctional resistance meter

Abstract

The utility model discloses a portable multifunctional resistance meter. When a traditional resistor is adopted for verification, verification is tedious, equipment is heavy, carrying is not easy, operation is not convenient, adjustment is troublesome, errors are prone to occurring, if a wiring position is loosened, measurement is not accurate, and the progress of the whole overhaul period is affected. The device comprises a shell (10), a selector switch (2), an input quick connector (3) and an output quick connector (6) are installed in the shell, an output line of the selector switch is connected with the input quick connector, a plurality of sets of fixed resistors (4) are connected between the output quick connector and the output quick connector, and the fixed resistors (4) are connected with the selector switch. And the output quick connector is connected with a grounding wire (7). The verification device is used for verification of the DC grounding line selection device.

Description

Technical Field

[0001] The utility model relates to a portable multifunctional resistance meter. Background Art

[0002] The calibration of DC grounding line selection device is divided into two voltage levels: 110V and 220V. Since there are many measuring points and different voltage levels in the DC grounding line selection device, the traditional resistor calibration is cumbersome, the equipment is heavy, not easy to carry, inconvenient to operate, and the adjustment is troublesome, prone to errors. If the wiring is loose, it will cause inaccurate measurement and affect the progress of the entire maintenance cycle. Utility Model Content

[0003] The purpose of the utility model is to solve the above-mentioned technical problems and provide a portable multifunctional resistance meter.

[0004] The above purpose is achieved through the following technical solutions:

[0005] A portable multifunctional resistance meter comprises: a shell, in which a selector switch, an input quick connector and an output quick connector are installed, the output line of the selector switch is connected to the input quick connector, multiple groups of fixed resistors are connected between the output quick connectors, and the output quick connector is connected to a ground wire.

[0006] The portable multifunctional resistance meter, the input quick connector includes an input block, the input block is provided with four slots, a first fixed copper plate is fixed in each of the slots, a first adjusting bolt is threadedly connected to each of the slots, and the end of the first adjusting bolt is rotatably connected to the first movable copper plate.

[0007] The portable multifunctional resistance meter, the output quick connector includes an output block, the output block is provided with a comb tooth groove, a second fixed copper plate is fixed in the comb tooth groove, each of the tooth grooves is threadedly connected with a second adjusting bolt, and the end of the second adjusting bolt is rotatably connected to the second movable copper plate.

[0008] The portable multifunctional resistor meter, the fixed resistor comprises a fixed resistor, and both ends of the fixed resistor are respectively connected with wiring. Beneficial Effects

[0009] 1. The utility model adopts a variety of fixed resistance resistor modes for the calibration work of the DC grounding line selection device. At the same time, the device is light and easy to carry. The fixed resistor connection of the device is connected through a quick connector, and the tightness of the wiring can be adjusted at any time to prevent the wiring from loosening. During the calibration process, the system is more stable and reliable, and short circuits or inaccurate data caused by poor contact can be prevented.

[0010] 2. The utility model adopts the form of input quick connector and output quick connector to realize quick connection with the fixed resistor, so that the fixed resistor can be changed as needed. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Attached Figure 1 It is a structural schematic diagram of the utility model;

[0012] Attached Figure 2 This is a schematic diagram of the structure of the input quick connector;

[0013] Attached Figure 3 Yes Figure 2 AA section view;

[0014] Attached Figure 4 This is a schematic diagram of the structure of the output quick connector;

[0015] Attached Figure 5 Yes Figure 4 BB section view;

[0016] In the figure: 1. test point wiring; 2. selector switch; 3. input quick connector; 4. fixed resistor; 5. fixed resistor; 6. output quick connector; 7. ground wire; 8. input terminal wiring; 9. output terminal wiring; 10. housing; 31. slot; 32. input block; 33. first fixed copper plate; 34. first movable copper plate; 35. first adjusting bolt; 61. first fixed copper plate; 62. output block; 63. comb groove; 64. second movable copper plate; 65. second adjusting bolt. DETAILED DESCRIPTION

[0017] Reference Figure 1-Figure 5 A portable multifunctional resistance meter comprises: a housing 10, in which a selector switch 2, an input quick connector 3 and an output quick connector 6 are installed, the selector switch selects a selector switch commonly used on the market, the input end of the selector switch is connected to a test point wiring 1, the selector switch has four output points, each output point is respectively connected to the first fixed copper plate in each slot of the input quick connector through wiring, the output line of the selector switch is connected to the input quick connector, a plurality of fixed resistors 4 are connected between the output quick connector and the output quick connector, and the output quick connector is connected to a grounding wire 7.

[0018] The input quick connector includes an input block 32, which is provided with four slots 31, each of which is a square slot. A first fixed copper plate 33 is fixed in each of the slots, and a first adjusting bolt 35 is threadedly connected to each of the slots. The end of the first adjusting bolt is rotatably connected to the first movable copper plate 34.

[0019] The output quick connector includes an output block 62, which is provided with a comb tooth groove 63, in which a second fixed copper plate 61 is fixed, and each of the tooth grooves is threadedly connected with a second adjusting bolt 65, and the end of the second adjusting bolt is rotatably connected to the second movable copper plate 64.

[0020] The fixed resistor comprises a fixed resistor 5 , both ends of which are connected with wirings, one end of the fixed resistor is connected with an input terminal wiring 8 , and the other end is connected with an output terminal wiring 9 .

[0021] Working principle: When in use, the selector switch has one input terminal and four output terminals. Each output terminal is connected to the first fixed copper plate of the corresponding input block connector through wiring, thus forming a four-way switching form. Four fixed resistors are connected between the input quick connector and the output quick connector. The connection form of the fixed resistor is that the input terminal wiring is inserted between the first fixed copper plate and the first movable copper plate, and then the first adjusting bolt is turned to move the first movable copper plate to clamp the input terminal wiring, and the output terminal wiring is inserted between the second fixed copper plate and the second movable copper plate, and then the second adjusting bolt is turned to move the second movable copper plate, so that the second movable copper plate moves to clamp the output terminal wiring, realizing the wiring connection of the fixed resistor, and then testing can be carried out. The fixed resistor can be replaced according to test requirements through the input quick connector and the output quick connector.

Claims

1. A portable multifunctional resistance meter, comprising: The housing is characterized in that a selector switch, an input quick connector and an output quick connector are installed in the housing, the output line of the selector switch is connected to the input quick connector, multiple groups of fixed resistors are connected between the output quick connectors, and the output quick connector is connected to a ground wire.

2. The portable multifunctional resistance meter according to claim 1, characterized in that: The input quick connector includes an input block, which is provided with four slots, each of which is fixed with a first fixed copper plate, each of which is threadedly connected with a first adjusting bolt, and the end of the first adjusting bolt is rotatably connected to the first movable copper plate.

3. The portable multifunctional resistance meter according to claim 2, characterized in that: The output quick connector includes an output block, which is provided with a comb tooth groove, in which a second fixed copper plate is fixed, each of the tooth grooves is threadedly connected with a second adjusting bolt, and the end of the second adjusting bolt is rotatably connected to the second movable copper plate.

4. The portable multifunctional resistance meter according to claim 3 is characterized in that: The fixed resistor comprises a fixed resistor, and both ends of the fixed resistor are respectively connected with wiring.

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