Positioning ruler for wall pendant
A positioning ruler and pendant technology, which is applied in the direction of measuring devices, instruments, surveying and mapping, and navigation, etc., can solve the problems of difficulty in determining distances and troubles
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[0022] The present invention will be further described below in conjunction with the accompanying drawings.
[0023] A positioning ruler for wall hangings, such as Figure 1 to Figure 6 As shown, it includes a ruler plate 1, a level bubble 2 and a positioning slider 3, the front of the ruler plate 1 is marked with a scale, and the ruler plate 1 is provided with an observation hole 11, and the level bubble 2 is embedded in the observation hole. In the hole 11, and can rotate in the observation hole 11, so that the vial 2 can always be in a horizontal or vertical state conveniently, and the positioning slider 3 is slidably connected to the ruler plate 1. There is friction between the positioning slider 3 and the ruler plate 1. When the positioning slider 3 is moved to a certain position of the ruler plate 1, the positioning slider 3 will only move under the thrust of more than 3N, so that It is convenient to locate the slider 3 on the ruler plate 1.
[0024] Through the settin...
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