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Self-positioning centerline ruler

A self-positioning, mid-line technology, applied in measuring devices, instruments, surveying and navigation, etc., can solve the problems of cumbersome and inconvenient operation

Pending Publication Date: 2021-04-16
NORTHWEST UNIVERSITY FOR NATIONALITIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a self-positioning centerline ruler, which solves the problems of cumbersome and inconvenient operations in existing methods for measuring the centerlines of components such as concrete beams and steel beams

Method used

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  • Self-positioning centerline ruler
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  • Self-positioning centerline ruler

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0032] Please refer to figure 1 , figure 2 and image 3 ,in, figure 1 A schematic structural view of the first embodiment of the self-positioning midline ruler provided by the present invention; figure 2 for figure 1 Top view of the measurement board shown; image 3 It is a structural schematic diagram in use of the present invention. Self-positioning centerline ruler, including:

[0033] Measuring board 1;

[0034] A limiting plate 3, the limiting plate 3 is connected to the left side of the measuring plate 1 by rotating the hinge shaft 2;

[0035] A nut with a hole 5, the nut with a hole 5 is fixed in the middle of the front of the measuring board 1;

[0036] Nylon rope 6, described nylon rope 6 is fixed on the described nut with hole 5;

[0037] Nylon rope 6 passes the hole on the nut with hole 5, and is tied on the nut with hole 5, and nylon rope 6 also can use other material ropes, and the length of nylon rope 6 is specifically set according to usage conditions...

no. 2 example

[0051] Please refer to Figure 4 , Figure 5 , Figure 6 and Figure 7 , based on the self-positioning midline ruler provided in the first embodiment of the present application, the second embodiment of the present application proposes another self-positioning midline ruler. The second embodiment is only a preferred mode of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0052] Specifically, the difference of the self-positioning midline ruler provided in the second embodiment of the present application is that, in the self-positioning midline ruler, one end of the nylon rope 6 is fixedly connected with a connecting ring 13 .

[0053] A semicircular baffle 9 is fixedly connected to the top of the center limiting plate 3 .

[0054] The cutting surface of the semicircular baffle 9 is located on the side of the measuring plate 1 .

[0055] The measuring plate 1 is provided with a ...

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PUM

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Abstract

The invention provides a self-positioning centerline ruler. The self-positioning centerline ruler comprises a measuring plate, a limiting plate which is rotatably connected to the left side of the measuring plate through a rotary hinge shaft, a nut with a hole which is fixed in the middle of the front surface of the measuring plate, a nylon rope which is fixed on the nut with the hole, a fixed shaft which is fixed on the right side of the measuring plate, and scale marks which are arranged on the front surface of the measuring plate. Through holes are formed in the connecting positions of the limiting plate and the measuring plate, the through holes are in clearance fit with the rotating hinge shaft, zero scale in the scale marks is located in the middle of the front face of the measuring plate, the limiting plate is located on the back face of the measuring plate, and the nut with the hole is located in the middle of the measuring plate. The self-positioning centerline ruler provided by the invention has the advantages of being flexible to disassemble, simple in structure, firm, durable, low in cost, small and exquisite in storage, convenient to carry and high in practical popularization value.

Description

technical field [0001] The invention relates to the field of engineering detection auxiliary equipment, in particular to a self-positioning midline ruler. Background technique [0002] In the field of engineering testing, there are many occasions where it is necessary to measure the centerline of concrete beams, steel beams and other components, and then measure parameters such as horizontal deflection. Beams are generally cuboid, such as steel beams used on railways. [0003] The traditional measurement method is to first find the center line of the width of the beam at both ends, mark it with a marker pen, and then connect the center line at both ends with a cord to determine the center line. Engineering measurements are unreliable. [0004] Therefore, it is necessary to provide a self-positioning center line ruler to solve the above technical problems. Contents of the invention [0005] The invention provides a self-positioning centerline ruler, which solves the probl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C15/08
Inventor 姜艳军
Owner NORTHWEST UNIVERSITY FOR NATIONALITIES