CN212009265U - Multi-image projection mechanism and projection lamp provided with same - Google Patents

Abstract

The invention provides a multi-image projection mechanism, which comprises a projection lens with multiple projection effects, a rack for mounting the projection lens, a driving piece for driving the projection lens to rotate, and a light source corresponding to different positions of the projection lens to switch the multi-image projection effects. The utility model has the advantages that: according to the invention, the multi-image projection lens with a plurality of projection effects is preset, the lens is designed to be rotatable, the pattern to be projected is preset on the projection lens, and when the projection effect needs to be changed, the projection lens is shifted to the position of the required projection pattern, so that the switching of the projection effect can be realized, and the projection switching is convenient and fast.

Description

Multi-image projection mechanism and projection lamp provided with same

Technical Field

The utility model belongs to the technical field of the projection lamp, especially, relate to a projection mechanism that can a plurality of patterns of projection.

Background

The projection lamp is generally used for single-pattern projection in the existing projection lamp, the structure is simple, only the projection lens of the projection lamp needs to be aligned to a light source to be installed, the projection lens is fixed or clamped inside the projection lamp, the projection lamp needs to be detached when the projection effect needs to be replaced, the projection lens in the projection lamp replaces the projection lens needed, and the projection lamp is large in limitation due to the fact that only one type of effect can be projected and is difficult to meet the social requirement.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that how realize that single projection mechanism can project out the many pictures projection mechanism of a plurality of different effects.

The utility model discloses a realize through following technical scheme:

the utility model provides a many pictures projection mechanism, is including the projection lens that is equipped with multiple projection effect and the frame that supplies the projection lens installation, and projection lens swing joint rotates along a connecting point in the frame, still includes drive projection lens pivoted driving piece, and the driving piece drives the projection lens and rotates and make the different positions of projection lens correspond the light source and switch over many pictures projection effect.

A plurality of projection areas are distributed on the projection lens along the connection point annular array.

The driving piece is a disc, the disc is movably connected with the rack, a through hole matched with the projection area of the projection lens is formed in the disc, and the projection lens is in linkage fit with the disc.

The disc is provided with an embedded groove for embedding the projection lens, the projection lens is embedded into the embedded groove, the projection lens is provided with a positioning notch, and the corresponding disc is provided with a positioning lug which is clamped into the positioning notch.

The projection lens fixing device further comprises a pressing plate for fixing the projection lens in the disc embedding groove, and a clamping groove for clamping the positioning lug is formed in the end side of the pressing plate.

The connecting point is a rotating shaft which is arranged on the rack and used for rotating the projection lens, and the projection lens, the disc and the pressing plate are all sleeved on the rotating shaft and can rotate along the rotating shaft.

The side end face of the circumference of the disc is provided with a dentate structure.

A rotary positioning mechanism is arranged between the frame and the disk, and the rotary positioning mechanism is positioned in a state that the disk rotates to the projection area and is aligned with the light source.

The rotary positioning mechanism comprises a positioning column and a spring, wherein a mounting hole for the spring and the positioning column to be embedded is formed in the rack, the end of the positioning column protrudes out of the surface of the rack when the spring and the positioning column are installed in the rack in an expansion state, a plurality of clamping holes for the end of the positioning column to be clamped in are formed in the end face, located at one end of the rack, of the disc, the number of the clamping holes is the same as that of projection areas of projection lenses, and the position of each clamping hole, the position of each through hole and the position of the mounting hole and the position of the.

A projection lamp provided with the multi-image projection mechanism comprises a shell, a power supply part and a light source, wherein a disc partially extends to the outside of the shell, and a light intensifying lens is arranged in the shell.

The utility model has the advantages that: according to the invention, the multi-image projection lens with a plurality of projection effects is preset, the lens is designed to be rotatable, the pattern to be projected is preset on the projection lens, and when the projection effect needs to be changed, the projection lens is shifted to the position of the required projection pattern, so that the switching of the projection effect can be realized, and the projection switching is convenient and fast.

Drawings

Fig. 1 is a perspective view of the projection mechanism of the present invention;

FIG. 2 is an exploded view of the projection mechanism;

FIG. 3 is a schematic structural view of a disk;

FIG. 4 is a schematic view of a projection lamp;

fig. 5 is an exploded view of a projection lamp.

Detailed Description

The present invention will be further described with reference to the following examples.

Examples

The projection lamp with the multi-image projection mechanism shown in fig. 1-5 includes a projection mechanism, a housing 1, a power supply portion 2, and a light source 3, in this embodiment, the light source 3 is a lighting source 3 such as a common light or LED, a light intensifying lens 4 is installed in the housing 1, in this embodiment, the light intensifying lens 4 is fixed at an end of the housing 1 and is disposed opposite to the light source 3, the projection mechanism includes a projection lens 5 with multiple projection effects and a frame 6 for installing the projection lens 5, the projection lens 5 is movably connected to the frame 6 and rotates along a connection point on the frame 6, and the projection lamp further includes a driving member for driving the projection lens 5 to rotate, and the driving member drives the projection lens 5 to rotate so that the projection lens 5 switches the multi-image projection effects at different positions corresponding to the light source 3. A plurality of projection areas are distributed on the projection lens 5 along the connection point annular array.

In the present embodiment, the driving member is preferably designed as a disk 7, in order to facilitate the poking of the disk 7, the disk 7 is partially extended to the outside of the housing 1, and a side end surface of the disk 7 in the circumferential direction is provided with a tooth-shaped structure. Disc 7 and 6 swing joint of frame are equipped with the through-hole with projection lens 5's projection area position assorted on the disc 7, and projection lens 5 and disc 7 linkage cooperation rotate together with following projection lens 5 when stirring disc 7.

In order to realize the linkage matching of the projection lens 5 and the disc 7, an embedded groove 71 for embedding the projection lens 5 is arranged on the disc 7, the projection lens 5 is embedded into the embedded groove 71, in order to prevent the projection lens 5 from rotating in the circumferential direction in the disc 7, preferably, a positioning notch 51 is arranged on the projection lens 5, a positioning lug 72 for clamping the positioning notch 51 is arranged on the corresponding disc 7, the projection lens 5 is clamped in the disc 7 and cannot move in the circumferential direction relative to the disc 7 through the arrangement of the positioning lug 72 and the positioning notch 51, and the linkage of the projection lens 5 and the disc 7 is ensured.

In order to prevent the projection lens 5 from moving axially, the projection lens system further comprises a pressing plate 8 for fixing the projection lens 5 in the embedding groove 71 of the disc 7, a clamping groove 81 for clamping the positioning protrusion 72 is formed in the end side of the pressing plate 8, and the angles of the pressing plate clamping groove 81, the positioning notch 51 of the projection lens 5 and the positioning protrusion 72 of the disc 7 can be kept consistent when the three are installed, so that the projection area of the disc 7 can be aligned to the light source 3 in the rotating process, namely, the projection area is aligned to the lamp hole 61 in the rack 6.

In order to enable the disk 7 to rotate on the frame 6, the connecting point is a rotating shaft 62 which is arranged on the frame 6 and used for rotating the projection lens 5, holes for the rotating shaft 62 to pass through are formed in the projection lens 5, the pressing plate 8 and the disk 7, the projection lens 5, the disk 7 and the pressing plate 8 are all sleeved on the rotating shaft 62 and can rotate along the rotating shaft 62, the disk 7 is integrally sleeved on the rotating shaft 62 of the frame 6 after the projection lens 5 and the pressing plate 8 are placed, screws or nuts or clamp springs can be connected to the end portion of the rotating shaft 62 under the condition that the rotation of the disk 7 is not affected, and the disk 7, the projection lens 5 and the pressing plate 8 are prevented from falling off.

In order to realize the positioning after the projection area rotates to the set position when the disk 7 rotates, a rotation positioning mechanism is arranged between the frame 6 and the disk 7, and the rotation positioning mechanism is positioned in the state when the disk 7 rotates to the state that the projection area is aligned with the light source 3. The design of the rotary positioning mechanism preferably includes a positioning column 9 and a spring 10, a mounting hole 63 for the spring 10 and the positioning column 9 to be embedded is arranged on the frame 6, the ends of the positioning column 9 protrude out of the surface of the frame 6 when the spring 10 and the positioning column 9 are installed in the frame 6 and the spring 10 is in an unfolded state, a plurality of clamping holes 73 for the ends of the positioning column 9 to be clamped are arranged on the end face of the disc 7 at one end of the frame 6, the number of the clamping holes 73 is the same as that of projection areas of the projection lens 5, and the positions of each group of the clamping holes 73 and the through holes on the disc 7 are matched with the positions of the mounting hole 63 and the. In this embodiment, the clamping hole 73 of the disc 7 is a hemispherical hole, and the end of the positioning column 9 is of a hemispherical structure, so that the positioning column 9 can play a positioning role, and the disc 7 can continue to rotate after the end of the positioning column 9 is clamped into the clamping hole 73.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that simple modifications and substitutions by those skilled in the art are within the scope of the present invention without departing from the spirit and scope of the present invention.

Claims (7)

1. A multi-image projection mechanism is characterized in that: the multi-image projection device comprises a projection lens with multiple projection effects, a rack for mounting the projection lens, a driving piece for driving the projection lens to rotate, and a switching piece for switching the multi-image projection effects by driving the projection lens to rotate so that the projection lens corresponds to light sources at different positions; a plurality of projection areas are distributed on the projection lens along the connection point annular array; the driving piece is a disc, the disc is movably connected with the rack, a through hole matched with the projection area of the projection lens is formed in the disc, and the projection lens is in linkage fit with the disc; the disc is provided with an embedded groove for embedding the projection lens, the projection lens is embedded into the embedded groove, the projection lens is provided with a positioning notch, and the corresponding disc is provided with a positioning lug which is clamped into the positioning notch.

2. A multi-image projection arrangement according to claim 1, wherein: the projection lens fixing device further comprises a pressing plate for fixing the projection lens in the disc embedding groove, and a clamping groove for clamping the positioning lug is formed in the end side of the pressing plate.

3. A multi-image projection arrangement according to claim 2, wherein: the connecting point is a rotating shaft which is arranged on the rack and used for rotating the projection lens, and the projection lens, the disc and the pressing plate are all sleeved on the rotating shaft and can rotate along the rotating shaft.

4. A multi-image projection arrangement according to claim 3, wherein: the side end face of the circumference of the disc is provided with a dentate structure.

5. A multi-image projection arrangement according to claim 3, wherein: a rotary positioning mechanism is arranged between the frame and the disk, and the rotary positioning mechanism is positioned in a state that the disk rotates to the projection area and is aligned with the light source.

6. A multi-image projection arrangement according to claim 5, wherein: the rotary positioning mechanism comprises a positioning column and a spring, wherein a mounting hole for the spring and the positioning column to be embedded is formed in the rack, the end of the positioning column protrudes out of the surface of the rack when the spring and the positioning column are installed in the rack in an expansion state, a plurality of clamping holes for the end of the positioning column to be clamped in are formed in the end face, located at one end of the rack, of the disc, the number of the clamping holes is the same as that of projection areas of projection lenses, and the position of each clamping hole, the position of each through hole and the position of the mounting hole and the position of the.

7. A projection lamp provided with the multi-picture projection mechanism of any one of claims 1 to 4, comprising a housing, a power supply section, and a light source, wherein: the disc partially extends to the outside of the shell, and the intensifying lens is arranged in the shell.

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