Leveling device

A kind of equipment and leveling technology, applied in the direction of artificial level, active optical measurement device, etc., can solve the problems of no longer sealing effect, high manufacturing cost, narrow and other problems, and achieve the effect of high sealing effect, accurate twistability and simple structure

Active Publication Date: 2018-02-06
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, conventional sealing by means of O-rings produces too high a friction at the required rotational speed and / or the required rotational precision, and overlapping housing edges must be avoided in order to avoid parasitic grinding effects and to ensure a smooth and precise rotatability with such a high gap size that an adequate sealing effect is no longer obtained
Conversely, sealing by means of multi-stage labyrinth seals would require prohibitively high production costs due to the tight tolerances to be observed.

Method used

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Examples

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Embodiment Construction

[0031] figure 1 The leveling device 100 is shown with a housing 110 having an upper part 120 and a lower part 130 , wherein the upper part 120 is designed to be freely rotatable relative to the lower part 130 about a longitudinal center axis 112 . The lower part 130 is connected here by way of example to three telescopic support feet 132 , 134 , 136 , by means of which the leveling device 100 rests on a base (not shown). The three telescopic support feet 132 , 134 , 136 are preferably configured in the manner of a tripod or so-called tripod.

[0032] A signal unit 150 for generating an optical signal 152 is preferably arranged on the upper part 120 of the housing 110 of the leveling device 100 . Signal unit 150 can be connected to upper part 120 by the user, preferably without tools, and can be detached again if necessary. The signal unit 150 is preferably designed to emit the optical signal 152 in a self-levelling manner, ie the optical signal 152 is always emitted parallel...

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Abstract

The invention relates to a leveling device (100) with a housing (110). The housing has an upper part (120). A signal unit (150) for generating an optical signal (152) is arranged on the upper part. The upper part (120) can rotate relative to a lower part (130) that is connected to at least one support leg (132, 134, 136). The signal unit (150) can irradiate the optical signal (152) in a self leveling mode. A floating ring (180) for sealing and reducing the radial gap is arranged between the lower part (130) and the upper part (120).

Description

technical field [0001] The invention relates to a leveling device with a housing having an upper part on which a signal unit for generating an optical signal is arranged, wherein the upper part is rotatable relative to a lower part connected to at least one support foot ground, and wherein the signal unit can be designed for self-leveling radiation of the optical signal. Background technique [0002] Many leveling devices are known from the prior art, in which a laser beam generated by means of a laser source is projected, for example, onto a wall. Such leveling devices are often subjected to relatively harsh conditions of use, as they are found on construction sites inside or outside buildings. Correspondingly sensitive, precision mechanical and optical components of the leveling device must therefore be reliably protected against the penetration of liquids and foreign particles, in particular water and dust. Housing parts that are immovable relative to each other can be ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C15/14
CPCG01C15/14G01C15/002
Inventor 黄世棋
Owner ROBERT BOSCH GMBH
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