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Bevel gauge for adjusting angle

An adjustable and protractor technology, applied in the field of measuring tools, can solve problems such as the inability to use horizontal and vertical methods, high precision requirements for sample production, waste of manpower and material resources, etc., and achieve the effect of simple structure, low cost and easy production

Active Publication Date: 2011-07-27
HUDONG ZHONGHUA SHIPBUILDINGGROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to improve the construction quality and reduce the construction cost, the single-chamfer and double-chamfer construction techniques are commonly used in the shipbuilding industry, but this also brings new contradictions to the actual operation: that is, the installation components have a certain inclination angle and cannot be installed horizontally. and vertical installation, but can only be installed through the angle template made according to the surface of the installation component and the base surface (hyperboloid) of the installation place
In this way, it is necessary to make a considerable number of special included angle templates of the specified size in advance. The templates with different angles can only be used at one time, which wastes a lot of manpower and material resources. Moreover, the precision of the templates is required to be high. Once there is a slight difference, the pool will be Incalculable damage to the base installation

Method used

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  • Bevel gauge for adjusting angle
  • Bevel gauge for adjusting angle
  • Bevel gauge for adjusting angle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The angle-adjustable protractor in this embodiment consists of the first disc 11 on the first rotating arm 1, which is a stainless steel disc with a 360-degree scale engraved on its edge, which is divided into 360 equal parts, and each grid represents one degree. The first arm body 12 is made of I-shaped steel to ensure its strength. However, in order to reduce the inconvenience caused by the increase of the overall weight of the protractor by using the I-beam, two lightening holes 14 are specially provided in the groove of the I-beam to reduce its weight. The cross section is as follows Figure 4 shown. In addition, in order to keep the first rotating arm 1 in a horizontal state when used as a reference, a horizontal pipe 13 is embedded in the first arm body 12 . There is a blister in the horizontal tube 13. When the first arm body 12 is placed horizontally, the blister is in the middle of the horizontal tube 13. If it is not horizontal, it is at the edge. At this tim...

Embodiment 2

[0030] The structure of the protractor in this embodiment is basically the same as in Embodiment 1, the difference is:

[0031] A horizontal tube is also provided on the second arm body 2, so that the application range of the protractor can be expanded to meet the use requirements of different occasions. Both the first rotating arm 1 can be used as the horizontal reference to adjust the second rotating arm 2 to rotate at any angle, and the second rotating arm 2 can be used as the horizontal reference to adjust the first rotating arm 1 to rotate at any angle.

[0032] In this embodiment, the connecting head 21 on the second rotating arm 2 is designed as a second disc similar to the first disc 11 . But the radius of the second disc 24 is smaller than the radius of the first disc 11 , and the outer edge of the second disc is engraved with a scale similar to that of the first disc 11 . In this way, the scale plate on the first disc 11 and the scale plate on the second disc form t...

Embodiment 3

[0034] The structure in this embodiment is basically the same as in Embodiment 2, the difference is:

[0035]The second disk on the second rotating arm 2 has the same size as the first disk 11 on the first rotating arm 1, but it is made of transparent material, and the center of the circle of the second disk is the center to be provided with a cross line, the cross The four extension lines of the line are covered on the scale of the first disc 11, so that when the two discs overlap, they rotate relative to each other to control the angle more precisely.

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Abstract

The invention relates to an angle gauge whose angle can be adjusted, which comprises a first pivoted arm, a second pivoted arm and a fastening piece which is used for connecting the first pivoted arm and the second pivoted arm, wherein one end of the first pivoted arm is a first collar plate, a first arm body is extended along a tangential line of the collar plate, a circle central portion of thefirst collar plate is a fixed hole, the edge of the plate surface of the first collar plate is provided with scale marks, a connecting joint is extended from one end of a second arm body of the second pivoted arm, the connecting joint is provided with a fixed hole, the two fixed hole is overlapped through stacking the connecting joint of the second pivoted arm on the first collar plate of the first pivoted arm, the outer edge of the second arm body is tangent with the first collar plate, the fastening piece penetrates through the two overlapped fixed hole to fix the first pivoted arm with thesecond pivoted arm, and the first pivoted arm and the second pivoted arm is rotated around the fastening piece which is used as a circle center. The invention can achieve an installing accuracy when a component is installed in any inclined angle, which also has the advantages of simple structure, simple and convenient manufacture, precise accuracy, low cost and convenient operation.

Description

technical field [0001] The invention relates to a measuring tool, in particular to an angle-adjustable protractor, which is used in the manufacture of steel structures and the installation of structural members of ship hulls, especially in the manufacture and installation of beams and columns of large steel structures. Background technique [0002] At present, in shipbuilding, steel structure, construction and other industries, the positioning installation of product components includes general horizontal positioning installation and vertical positioning installation, and the construction methods adopted are similar. The horizontal positioning installation uses a horizontal pipe, spirit level or laser level to level the positioning; the vertical positioning installation uses a gravity pendant or a laser theodolite to draw a vertical line for positioning and installation. For the installation of inclined components with a specified angle, the manufacturing process and auxilia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C1/00G01C9/00G01C9/24
Inventor 金戈天刘集善
Owner HUDONG ZHONGHUA SHIPBUILDINGGROUP
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