Laser plumbing and leveling instrument which adjusting height of horizontal line

• US 6,782,034 B2
• Filed: 11/06/2002
• Issued: 08/24/2004
• Est. Priority Date: 12/29/1999
• Status: Expired due to Fees

• Current Assignee: Chuying Li
• Original Assignee: Chuying Li
• Inventors: Li, Chuying
• Primary Examiner(s): Wong, Don
• Assistant Examiner(s): FORDE, DELMA ROSA
• Application Number:
  US10/169,539
• Publication Number:
  US 20030101606A1
• Time in Patent Office: 657 Days
• Field of Search: 372/101, 372/109, 332/81, 332/83, 332/86, 332/91, 332/75, 332/85, 332/82, 332/90
• US Class Current: 372/109
• CPC Class Codes: G01C 15/004 Reference lines, planes or sectors

Abstract

The present invention discloses a laser-plumbing leveler with adjustable height of the horizontal line, which comprises a laser emitting device, a laser line (plane) projecting optical system, and a laser line (plane) rotating and/or moving unit, wherein the laser line (plane) projecting optical system comprises a horizontal laser unit, a vertical laser unit and/or inclined laser unit and so forth. The laser-plumbing leveler according to the invention can be used in building decoration or the like for positioning at different height in horizontal, vertical and inclined directions, and has the advantages of easy use, reliable leveling, simple construction and low price.

Claims

1. A laser-plumbing leveler with adjustable height of the horizontal line, comprising:

a pedestal unit;

a base unit mounted on said pedestal unit;

a lateral axle unit mounted on a pillar unit of said based unit, and an axis thereof being substantively horizontal;

a rotating portion unit supported by said lateral axle unit and capable of pivoting about said axis of said lateral axle unit;

a horizontal laser unit for projecting a horizontal laser line, said horizontal laser unit being mounted on said rotating portion unit so as to project the horizontal laser line whose height is changed along with the rotation of said rotating portion unit, and comprising a laser tube, a positive lens and a cylindrical lens, in which the positive lens is disposed between the laser tube and the cylindrical lens;

a vertical laser unit for projecting a vertical laser line, said vertical laser unit being mounted on said rotating portion unit and adjacent to said horizontal laser unit, so that the vertical laser line being orthogonal to said horizontal laser line, the vertical laser unit comprising a laser tube, a positive lens and a cylindrical lens, in which the positive lens is disposed between the laser tube and the cylindrical lens; and

a power supply for supplying power to said horizontal laser unit and said vertical laser unit.

2. The laser-plumbing leveler with adjustable height of the horizontal line according to the claim 1, wherein said horizontal laser unit an said vertical laser unit are juxtaposed to each other on said rotating portion unit, primary optic axes of said horizontal laser unit and said vertical laser unit, which are formed by connecting centers of said laser tube, said positive lens and said cylindrical lens of said horizontal laser unit and said vertical laser unit respectively, are both intersected and orthogonal to said axis of said lateral axle unit.

3. The laser-plumbing leveler with adjustable height of the horizontal line according to the claim 2, further comprising an inclined line accessory mounted on a top of said pillar unit and power-supplied by said power supply, said inclined line accessory includes an inclined laser unit for projecting an inclining laser line and an angle adjuster for adjusting an inclination of the inclining laser line projected by the inclined laser unit, the inclined laser unit having a laser tube, a positive lens and a cylindrical lens, in which the positive lens is disposed between the laser tube and the cylindrical lens.

4. The laser-plumbing leveler with adjustable height of the horizontal line according to the claim 1 or 2, further comprising a horizontal leveler mounted on said base unit and used for determining whether said base unit and said axis of said lateral axle unit are horizontal so as to determine whether said projected horizontal laser line is horizontal;

and a leveling screw for adjusting level of said base unit.

5. The laser-plumbing leveler with adjustable height of the horizontal line according to the claim 4, further comprising a zero position leveler for determining whether said primary optic axes of said horizontal laser unit and said vertical laser unit are horizontal, said zero position leveler being mounted in said rotation portion unit, when said horizontal leveler and said zero position leveler are all indicated to be level, said horizontal laser unit emits a horizontal laser plane and said vertical laser unit emits a vertical laser plane.

6. The laser-plumbing leveler with adjustable height of the horizontal line according to the claim 5, wherein said lateral axle unit comprises a fixed bush, an intermediate bush, a fluororubber gasket an a main lateral axle, in which the intermediate bush is mounted between the fixed bush and the main axle, the fixed bush is fixed to said pillar unit, the fluororubber gasket is fit over the main axle fixed to said rotation portion unit, an inclined inching screw is mounted on the intermediate bush, when the inclined inching screw is adjusted, the intermediate bush can be rotated so as to rotate the rotation portion unit slightly.

7. The laser-plumbing leveler with adjustable height of the horizontal line according to the claim 1, further comprising a power supply switch for controlling power supplying from said power supply to said horizontal laser unit and said vertical laser unit.

8. The laser-plumbing leveler with adjustable height of the horizontal line according to the claim 1, wherein said base unit is connected to said pedestal unit via a supporting member and a tension spring, wherein said power supply is mounted in said base unit and wherein said pedestal unit is provided with fulcrums on bottom surface thereof.

9. A laser-plumbing leveler with adjustable height of the horizontal line, comprising:

a pedestal unit having a pillar and an absorbing magnet;

a universal magnetic joint consisted of a steel ball and an intensified magnet, said intensified magnet being seated on said steel ball, and said steel ball is connected to said pedestal unit;

an instrument body connected to said magnet of said universal magnetic joint and capable of rotating in an arbitrary direction around said magnetic joint, said magnet of the universal magnetic joint can be mounted on said pedestal unit or said pillar, and said steel ball being mounted on the instrument body provided with an inching mechanism;

a horizontal laser unit for projecting a horizontal laser line, said horizontal laser unit being mounted on said instrument body and comprising a laser tube, a positive lens and a cylindrical lens, in which the positive lens is disposed between the laser tube and the cylindrical lens;

a vertical laser unit for projecting a vertical laser line, said vertical laser unit being mounted on said instrument body and adjacent to said horizontal laser unit, so that the vertical laser line being orthogonal to said horizontal laser line, the vertical laser unit comprising a laser tube, a positive lens and a cylindrical lens, in which the positive lens is disposed between the laser tube and the cylindrical lens; and

a power supply for supplying power to said horizontal laser unit and said vertical laser unit.

10. The laser-plumbing leveler with adjustable height of the horizontal line according to the claim 9, further comprising a power supply switch for controlling power supplying from said power supply to said horizontal laser unit and said vertical laser unit.

11. The laser-plumbing leveler with adjustable height of the horizontal line according to the claim 9, further comprising a horizontal leveler and a zero position leveler mounted on said instrument body, wherein when the horizontal leveler rotates to any position around an axis thereof, it can indicate whether the axis is horizontal, the axis thereof is orthogonal to a main optical axis of said horizontal laser unit and parallel to a laser plane emitted by said horizontal laser unit so as to determine whether a laser line projected by said horizontal laser unit is horizontal, the main optical axis is a line connecting centers of said laser tube, said positive lens and said cylindrical lens of said horizontal laser unit, and an axis of said zero position leveler is parallel to the main optical axis of said horizontal laser unit so as to determine together with the horizontal leveler whether a laser plane emitted by the horizontal laser unit is horizontal.