Positioning assistive device and hollow beam provided with positioning assistive device
A technology of auxiliary equipment and empty beams, which is applied in the direction of erecting/assembling bridges, bridges, measuring devices, etc., can solve the problems of large measurement or calculation errors, delayed construction period, low precision, etc., to reduce measurement errors, save manpower and material resources, The effect of improving work efficiency
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[0036] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all of them. Based on the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present application.
[0037] see Figure 1~4 As shown, the embodiment of the present application provides a positioning aid, including:
[0038] subject1;
[0039] a prism 3, which is arranged on the main body 1;
[0040] Two sliding cavities 10 arranged on the same side of the main body 1, the two sliding cavities 10 are respectively arranged on the left...
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