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Leveling disc

A technology of leveling and datum plate, used in height/level measurement, measuring devices, instruments, etc., can solve the problem of easy wear and tear of laser level, and achieve the effect of simple structure, lower production cost, and easy manufacturing and production.

Inactive Publication Date: 2008-10-22
沈建明
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a leveling plate in view of the existing background technology, which can not only maintain the advantages of quickness and convenience of fixing the laser level with magnets, and high measurement accuracy, but also overcome the high-precision reference plane that is easily damaged by the laser level. The defect that the ruler is easy to wear, the rotation is easy and fast, and the measurement accuracy is high

Method used

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Embodiment Construction

[0014] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0015] Such as figure 1 , 2 As shown, this kind of level plate includes main components such as a base 3, a center plate 2, a reference plate 5, an adjustment hand wheel 4, and a ball cage 6, wherein the center plate 2 is connected and fixed on the base 3 through the adjustment hand wheel 4 In this way, the user can adjust the level of the laser level by turning the adjustment handwheel. The specific structure of the adjustment handwheel is that three hollow cylinders 10 are formed and distributed on the bottom surface of the center plate 2, and they are distributed in an equi-triangular shape, and a metal insert 26 is embedded in the cavity 11 of the cylinder, and the metal insert 26 Threaded, so that there are screw holes in the hollow cylinder 10, correspondingly equipped with three adjustment handwheels 4, the adjustment handwheel 4 is a...

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Abstract

A leveling instrument consists of base, central disc, reference disc and regulating hand wheel. It is featured as having reference ring fixed on central disc, setting ball retainer on top-end surface of reference ring, setting reference disc on ball retainer, inserting rod support disc for fixing the reference disc into shaft hole of central disc through its central shaft and fixing and support disc on central disc in rotating means by screw, pad and elastic element at bottom end of central shaft.

Description

technical field [0001] The invention relates to the technical field of a level plate used for fixing a laser level and performing a rotary measurement movement in a measuring tool. Background technique [0002] We know that on construction sites or installation sites, workers often need to use laser levels to measure or scan horizontal or vertical lines. In order to make the laser level measure quickly and correctly, a level disc (also called a rotary disc) is generally required. Make the bottom bracket of the laser level, so that the laser level can be installed on the level plate and leveled. For example, the Chinese patent "rotary disk" with the patent number of 00208328.0 discloses a rotary disk, which is characterized in that the rotary disk includes a rotary disk, a locking block, a bolt, an adjusting bolt, a base, a chassis, a locking bolt, and a foot, Wherein the central shaft on the lower surface of the turntable is inserted into the central hole on the chassis, a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C5/00
Inventor 沈建明张海云
Owner 沈建明
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