CN105759393B - Projector lens Quick assembling-disassembling structure - Google Patents

Abstract

A projector lens quick assembly and disassembly structure, including a positioning deadbolt plate and a lock buckle tensioning mechanism, characterized in that: the positioning deadbolt plate is fixed on the lens, and the two ends of the positioning deadbolt plate have locking notches, Lens positioning hole; the lock tightening mechanism includes a mechanism positioning plate, a rotating shaft, a lock handle, and a lock pull ring. There are fixed screw holes and mechanism positioning holes on the mechanism positioning plate, and the mechanism positioning plate passes through the rotating shaft and the lock handle. There is a lock pull ring on the lock handle, and there are mechanism positioning pins and lock screw holes on both sides of the optical engine body. The mechanism positioning plate fixes the two lock buckle tensioning mechanisms on the Both sides of the optical engine fuselage; after the lens is positioned, the lock pull ring is buckled at the locking notch of the positioning bolt plate; the beneficial effect is: the projector lens can be quickly disassembled and assembled, the operation is simple, the time is short, and there is Conducive to mass production.

Description

Projector lens quick assembly and disassembly structure

technical field

The invention relates to a projector, in particular to a quick assembly and disassembly structure of a projector lens.

Background technique

At present, the general fixing method of the projector lens is to position the lens closely on the precise positioning surface of the optical engine, and then lock the screw along the lens axis to fasten the lens to the optical engine body (as shown in Figure 1). However, when using an ultra-short focal length lens, because the outer diameter of the front group of the ultra-short focal length lens will be relatively large, when the locking screw 5 is tightened axially, it is very difficult to operate due to insufficient operating space; The nearby space can’t be made very large, therefore, the locking screws generally use hexagon socket screws, and the hexagonal wrench is used to tighten the locking screws bit by bit, which takes a lot of time to operate. And in the process of use, when it is necessary to replace the lens for maintenance or remove the lens for dust removal maintenance, the operation will be more complicated, it will take more time, and it is not conducive to mass production.

Contents of the invention

The object of the present invention is to provide a projector lens quick assembly and disassembly structure in order to overcome the deficiencies of the prior art.

In order to achieve the above object, the technical solution adopted by the present invention is: a projector lens quick assembly and disassembly structure, including a positioning bolt plate and a lock buckle tensioning mechanism, characterized in that: the positioning bolt plate is fixed on the lens, There are locking notches and lens positioning holes at both ends of the positioning deadbolt plate; the lock tightening mechanism includes a mechanism positioning plate, a rotating shaft, a lock handle, and a lock ring, and the mechanism positioning plate has a fixing screw hole and a mechanism The positioning hole, the mechanism positioning plate is connected with the lock handle through the rotating shaft. There is a lock pull ring on the lock handle. There are mechanism positioning pins and locking screw holes on both sides of the optical engine body. The mechanism positioning plate is through the locking screw and locking screw. The screw holes fix the two sets of lock tensioning mechanisms on both sides of the optical engine body; after the lens is positioned, the lock pull ring is buckled in the locking notch of the positioning bolt plate. When the lock handle is pressed down, the lock ring will tighten and fix the lens.

Compared with the prior art, the beneficial effect of the present invention is: the projector lens can be quickly disassembled and assembled under the premise of ensuring the positioning accuracy, which is simple, convenient and practical. Simple, short time, conducive to mass production.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings.

Fig. 1 is a schematic diagram of the positioning and fixing method of a projector lens in the prior art;

Fig. 2 is the structural representation of the embodiment of the present invention;

Fig. 3 is a schematic diagram of installation in Fig. 2;

Fig. 4 is a schematic diagram of the working principle of the present invention;

Fig. 5 is a partial schematic view of the tensed and fixed state of the lens of the present invention.

Icon description: 1. Lens; 2. Optical engine body; 3. Positioning panel; 4. Lens positioning hole; 5. Locking screw; 6. Positioning bolt plate; Positioning plate; 9. Lock handle; 10. Lock ring; 11. Shaft; 12. Locking notch; 13. Fixing screw hole; 14. Mechanism positioning hole; 15. Mechanism positioning pin.

detailed description

Fig. 1 is a schematic diagram of the positioning and fixing method of the projector lens in the prior art, the lens 1 is positioned on the optical engine body 2, the lens 1 is fixed on the positioning panel 3, and the lens positioning hole 4 is arranged on the positioning panel 3, through the axial lock Pay screws and 5 locks to pay for fastening.

Fig. 2 is a schematic structural diagram of an embodiment of the present invention, and Fig. 3 is a schematic diagram of installation in Fig. 2, a quick assembly and disassembly structure of a projector lens of the present invention, including a positioning bolt plate 6, a lock tensioning mechanism 7, and the positioning lock The tongue plate 6 is fixed on the lens 1, which is consistent with the way that the positioning panel 3 is fixed on the lens in the prior art; the two ends of the positioning lock tongue plate 6 have locking notches 12 and lens positioning holes 4; the lock buckle is tightened The mechanism 7 includes a mechanism positioning plate 8, a rotating shaft 11, a lock handle 9, and a lock ring 10. The mechanism positioning plate 8 has a fixed screw hole 13 and a mechanism positioning hole 14. The mechanism positioning plate 8 is connected to the lock handle 9 through the rotating shaft 11. Connect, lock pull ring 10 is arranged on the lock handle 9, there are mechanism positioning pin 15, locking screw hole 16 on both sides of the optical engine body 2, and mechanism positioning plate 8 connects the two by locking screw 5 and locking screw hole 16. The secondary lock tensioning mechanism 7 is fixed on both sides of the optical engine body 2; when the lens is installed, the lens positioning hole 4 on the positioning deadbolt plate 6 is aligned with the positioning pin on the optical engine body 2, and after the lens is positioned, Buckle the buckle pull ring 10 on the locking notch 12 of the positioning deadbolt plate 6. Figure 4 is a schematic diagram of the working principle of the present invention. In the state before the buckle handle 9 is pressed down, the lock buckle handle 9 is pressed down, and the lock buckle pulls. The ring 10 is about to tighten and fix the lens. FIG. 5 is a partial schematic diagram of the tightened and fixed state of the lens of the present invention. On the contrary, when the lens is disassembled, the lock handle 9 is pulled up, the lock pull ring 10 is loosened, and the lens can be removed.

The invention has the advantages of simple operation for installing and dismounting the lens, short time and favorable batch production.

Claims (1)

1. A projector lens quick assembly and disassembly structure, comprising a positioning deadbolt plate and a lock buckle tensioning mechanism, characterized in that: the positioning deadbolt plate is fixed on the lens, and the two ends of the positioning deadbolt plate have locking recesses mouth, lens positioning hole; the lock tightening mechanism includes a mechanism positioning plate, a rotating shaft, a lock handle, and a lock pull ring. There are fixed screw holes and mechanism positioning holes on the mechanism positioning plate. The buckle handle is connected. There is a lock ring on the lock handle. There are mechanism positioning pins and lock screw holes on both sides of the optical engine body. It is fixed on both sides of the optical engine body; after the lens is positioned, the locking ring is buckled in the locking notch of the positioning bolt plate.