Multifunctional straight ruler
A multi-functional, straightedge technology, applied in the field of surveying and mapping tools, can solve the problems of inability to measure the angle or inclination of the plane, the ruler has few functions, and the structure is complicated, and achieves the effect of simple structure, multiple functions, and convenient operation
Active Publication Date: 2018-06-29
HUNAN INST OF TECH
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
In actual use, in order for teachers or surveyors to complete and standardize the ideal graphics, they usually need to carry all the above tools with them, which is very inconvenient
[0003] At present, some technicians in the industry have improved ordinary rulers. Some rulers can draw straight lines and circles according to the needs of users, and can also perform size positioning and measure lengths, which brings certain convenience to users. , but the function of this kind of ruler is still less, it cannot measure the angle in the plane or the inclination of the plane, and the structure is more complicated
Method used
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[0031] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the embodiments and accompanying drawings, and the contents mentioned in the embodiments are not intended to limit the present invention.
[0032] In describing the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device Or elements must have a certain orientation, be constructed and operate in a certain orientation, and thus should not be construed as limiting the invention.
[0033] In the description of the present invention...
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The invention provides a multifunctional straight ruler, which comprises two straight ruler bodies, two guide rails arranged on the inner sides of the straight ruler bodies, a first sliding block anda second sliding block. The first sliding block is fixed to the left ends of the guide rails; a pressable positioning nail is arranged on the first slide block; the positioning nail is pressed, so that the end parts of the positioning nail can stretch out from the bottom parts of the straight ruler bodies; the second sliding block is located on the right side of the first sliding block; a screw rod is in threaded connection onto the second sliding block; an angle measuring disc is connected to the top end of the screw rod; a pen refill is connected to the bottom end of the screw rod; the straight ruler bodies further comprise two fixing pieces; one fixing piece is used for tightly fixing the left ends of the two straight ruler bodies; the other fixing piece is used for tightly fixing the right ends of the two straight ruler bodies; scale lines for measuring lengths are marked on the straight ruler bodies; a scale line for measuring an angle is marked on the upper surface of the angle measuring disc; a half volume of colored liquid is further packaged into the angle measuring disc; and the straight ruler bodies, the second sliding block, the guide rails and the angle measuring discare made of transparent plastics.
Description
technical field [0001] The invention relates to the technical field of surveying and mapping tools, in particular to a multifunctional ruler. Background technique [0002] For teachers and surveyors, rulers, isosceles right-angled triangles, compasses, protractors, etc. are commonly used surveying and mapping tools. These tools are independent of each other and have different functions. Among them, the ruler is used to measure the length of a straight line and draw a straight line. Compasses are used to draw circles, while protractors are used to measure angles and aid in drawing specific angles. In actual use, in order for teachers or surveyors to complete and standardize the ideal graphics, they usually need to carry all the above tools with them, which is very inconvenient. [0003] At present, some technicians in the industry have improved ordinary rulers. Some rulers can draw straight lines and circles according to the needs of users, and can also perform size position...
Claims
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IPC IPC(8): B43L7/00B43L9/00G01B3/56
CPCB43L7/005B43L9/007G01B3/56
Inventor 董勇阿克交力·克外尹兰
Owner HUNAN INST OF TECH