Height regulating system of projector

Height regulating system of projector

  • CN 1,477,442 A
  • Filed: 08/22/2002
  • Published: 02/25/2004
  • Est. Priority Date: 08/22/2002
  • Status: Active Application
First Claim
Patent Images

1. bolt lock mechanism that is used for height adjustment system includes:

  • One first housing, it includes;

    One bottom surface has a central opening and is used for allowing a height adjusting link pass through;

    One pillar is arranged on this bottom surface near this central opening place, and it is consistent with the pole face of this height adjusting link to be formed with a supporting surface along the periphery of this central opening, in order to support this height adjusting link;

    One first surface and second surface are arranged at respectively on first edge and second edge of this first housing;

    AndOne the 3rd surface is arranged on the 3rd edge of this first housing;

    One internal module slidably is arranged in this first housing, and this internal module includes;

    One centre have one first perforate, and this pillar is arranged in this first perforate, and this supporting surface of this pillar is towards a surface of contact of this first perforate;

    One first ear and second ear, first edge and second edge by this centre extends out respectively, and is arranged at respectively on a first surface and the second surface;

    AndOne third ear portion is extended out by the 3rd edge in this centre, and is arranged on one the 3rd surface;

    One second housing can be fixed on this first housing, and this centre of covered section at least, and this second housing has the central opening that a central opening corresponds to this first housing;

    Wherein when this centre is in a primary importance, this surface of contact of this first perforate is pressed to this height adjusting link, make this height adjusting link prop up this arc supporting surface, and this height adjusting link is stuck in a fixed position, and when this centre is in a second place, this surface of contact of this first perforate can separate with this supporting surface, and makes this height adjusting link slide between this surface of contact and this supporting surface.

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