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Non-contact current detection device for building fire fighting equipment

A technology of current detection device and fire-fighting equipment, applied in the direction of measurement device, measurement device shell, and only current measurement, can solve the problems of Rogowski coil being unable to contact stably, unstable measurement results, affecting measurement results, etc., to achieve convenient measurement and connection. Good stability and accurate measurement results

Active Publication Date: 2021-09-24
邹婕
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (1) The clamping device is located on one side of the Rogowski coil, and there is a certain distance between the clamping device and the Rogowski coil. When the cable passes through the clamping device and then passes through the Rogowski coil, the cable may be bent. The cable cannot be guaranteed to be at the axis of the Rogowski coil, resulting in unstable measurement results
[0007] (2) One side of the upper casing is connected to the lower casing through a rotating device, and the other side of the upper casing is connected through a clamping block, a lower fixing block, an adjustment cavity, a clamping cavity, a support rod, a rotating rod, a pulling rod, and a pulling rod. Slots, sliding slots, auxiliary rods, limit blocks, snap-in blades and return springs are connected with the other side of the lower housing, and the simple functions are not practical through complex structures. In addition, the upper The shell is connected to the lower shell, there is a hidden danger that the Rogowski coil on the upper shell and the Rogowski coil on the lower shell cannot be in stable contact, which will affect the measurement results

Method used

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  • Non-contact current detection device for building fire fighting equipment
  • Non-contact current detection device for building fire fighting equipment
  • Non-contact current detection device for building fire fighting equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Depend on Figure 1-Figure 8 Given, a non-contact current detection device for building fire-fighting equipment, including a semi-circular lower housing 1 and an upper housing 2 matched with the lower housing 1, the side walls at both ends of the lower housing 1 pass through The connecting device 4 is connected to the side walls at both ends of the upper casing 2, wherein:

[0037]The connection device 4 includes a fixed block a408 integrally arranged on the side walls at both ends of the upper housing 2, and a fixed block b409 is integrally arranged on the side walls at both ends of the lower housing 1, and a notch 401 is arranged on the fixed block a408, and the notch 401 The inner rotation is connected with a rotating shaft 402, the outer wall of the rotating shaft 402 is fixedly sleeved with a bolt 403, the fixed block b409 is provided with a gap 407 corresponding to the bolt 403, the outer wall of the bottom of the bolt 403 is threaded with a handle nut 406, and th...

Embodiment 2

[0048] On the basis of Embodiment 1, both sides of the lower housing 1 are fixedly connected with a support plate 6, the top of the support plate 6 is fixedly connected with a support block 9, and two sliders 12 are slidably connected to the support block 9. One side of 9 is provided with the sliding port corresponding to slide block 12, and the support block 9 is connected with two-way threaded rod 10 in rotation, and one end of two-way thread rod 10 runs through support block 9 and extends to the top of support block 9, and slide block 12 threads Sleeved on the outer wall of the bidirectional threaded rod 10, the slider 12 is fixedly connected with a clamping piece 13, and the opposite sides of the two clamping pieces 13 are provided with arc-shaped grooves, and the two clamping pieces 13 are connected with the support The plates 6 are arranged in parallel.

[0049] By clamping and fixing the cable on both sides of the housing, the cable passing through the Rogowski coil can...

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Abstract

The invention discloses a non-contact current detection device for building fire-fighting equipment and relates to the technical field of fire-fighting detection. The non-contact current detection device comprises a semi-annular lower shell and an upper shell matched with the lower shell, wherein side walls of two ends of the lower shell are connected with side walls of two ends of the upper shell through connecting devices. According to the device, the supporting plates are arranged at the two ends of the lower shell, the clamping devices are arranged at the tops of the supporting plates, and the cable is clamped at the two sides of the lower shell, so the cable passing through the Rogowski coil can be ensured to be always located at the axis of the Rogowski coil, and accuracy of a measurement result is improved; problems that an existing clamping device is located on one side of the Rogowski coil, a certain distance exists between the clamping device and the Rogowski coil, when the cable penetrates through the clamping device and then penetrates through the Rogowski coil, the cable has the possibility of bending, it cannot be guaranteed that the cable is located at the axis of the Rogowski coil, and consequently the measurement result is unstable are solved.

Description

technical field [0001] The invention relates to the technical field of fire detection, in particular to a non-contact current detection device for building fire protection equipment. Background technique [0002] With the continuous development of the power industry, not only the cities are dissatisfied with a large number of cables and wires, but also various complicated cables and wires are distributed in large factories, and the number of fire-fighting equipment in large-scale factories is also relatively large. Whether the lines of fire-fighting equipment It is also very important to be able to run normally, so it is necessary to regularly detect the current of the line of the fire protection equipment. The traditional current detection prevents the need to connect one end of the cable to the detection device for detection, which not only affects the normal use of the power supply, but also has great safety Hidden dangers, and in modern power system testing, Rogowski coi...

Claims

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Application Information

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IPC IPC(8): G01R19/00G01R15/18G01R1/04
CPCG01R19/0092G01R15/181G01R1/04G01R1/0408
Inventor 邹婕王强
Owner 邹婕