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Cable length metering device in tunnel construction

A cable length, measuring device technology, applied in the direction of measuring devices, testing dielectric strength, instruments, etc., can solve the problems of complex equipment, difficult cable length measurement, etc., to achieve the effect of simple structure

Pending Publication Date: 2022-04-05
CHINA RAILWAY TUNNEL GROUP CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of difficult cable length measurement and complex equipment in tunnel construction in the prior art

Method used

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  • Cable length metering device in tunnel construction
  • Cable length metering device in tunnel construction
  • Cable length metering device in tunnel construction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A cable length measuring device in tunnel construction, see Figure 1 to Figure 9 , including at least one spherical or cylindrical shell, the shell includes an upper cover 1 and a lower seat 2 that are hingedly connected, the center position of the upper cover 1 and the lower seat 2 is provided with a cable through hole 4, and the upper cover 1 is provided with There is a top pressure roller 5 tangential to the cable, and a bottom top roller 6 is arranged inside the lower seat 2, and the bottom top roller 6 is connected to a meter counter for recording its rotational speed; the size of the cable through hole 4 is larger than the outer surface of the tested cable. Diameter; at least one of the top pressure roller 5 or the bottom top roller 6 is an anti-drum shape with an outer diameter increasing from the center to both sides to realize the cable limit; the shell is provided with anti-slip lines and a display screen 7, and the display screen 7 is connected to the control...

Embodiment 2

[0044] The principle of this embodiment is the same as that of Embodiment 1, the specific difference is that the light strip is replaced by a light strip installed in the upper cover 1 , and a light-transmitting slit is provided in the shape and size between the upper cover 1 and the lower cover. This design can be used as a signal light ball in the tunnel environment with poor lighting conditions. Its light source power is low, but it can guide the staff. One is to indicate the position of the cable to prevent bumping, and the other is to mark the cable itself for convenience Handover of work information during shifts between teams.

Embodiment 3

[0046] The principle of this embodiment is the same as that of Embodiment 1, and the specific difference is that an electric pen original 17 is respectively provided before and after the cable through hole 4 of the lower base 2, and the electric pen original 17 is in the shape of an open fish mouth as a whole. Fixed on the lower seat 2, the upper part 14 and the lower part 15 are fixed to form an annular ring through a hinged connection, and an annular wire 16 forming a circumference is arranged in the annular ring, and an electric pen circuit is arranged on the upper part 14, and the electric pen circuit and the annular wire 16 phase connections.

[0047] The outer surfaces of the top pressure roller 5 and the bottom top roller 6 are attached with a water-absorbing layer, and the central axes of the top pressure roller 5 and the bottom pressure roller are made of insulating materials. The electric pen is externally connected to the flexible signal rod 18 suspended in the air,...

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Abstract

The invention relates to the field of measuring equipment in tunnel construction, in particular to a cable length metering device in tunnel construction. The problems that cable length measurement is difficult and equipment is numerous and jumbled in tunnel construction at the present stage are solved. The device comprises at least one spherical or cylindrical shell, the shell comprises an upper cover and a lower base which are hinged and connected, cable through holes are formed in the center positions of the upper cover and the lower base, a top pressing roller tangent to a cable is arranged in the upper cover, a bottom top roller is arranged in the lower base, and the bottom top roller is connected with a meter counter for recording the rotating speed of the bottom top roller. The device has the advantages that the whole device serves as a handheld device, is small in size, convenient to carry and diversified in function, and can have multiple functions in tunnel construction occasions.

Description

technical field [0001] The invention relates to the field of measuring equipment suitable for tunnel construction, in particular to a cable length measuring device for tunnel construction. Background technique [0002] Length measuring devices are very common in construction production operations. They are mostly used for measurement of product design, acceptance of construction sites and verification during construction. They are common tools in the construction field. [0003] For the improvement of length measurement devices, most of them focus on the improvement of measurement methods. For example, in the current meter counting method, most of them use rotation to convert angular displacement into linear displacement, and then simply measure the linear displacement, and then use the circuit The device and the background software system perform calculations to form results. In this method, the measurement of angular displacement can be through infrared sensors or travel s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/02G01R31/12G01R31/52
Inventor 崔乐健丁振吕林兵张东向军胡波张继超曾垂刚周建军李凤远周洋黄志肃黄奕程杨振兴翟乾智
Owner CHINA RAILWAY TUNNEL GROUP CO LTD
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