Projection sheet assembly for projection lamp, projection tray and projection lamp

Abstract

The utility model relates to the technical field of optics, in particular to a projection sheet assembly for a projection lamp, a projection tray and the projection lamp. The screen sheet assembly comprises a shell, a rotating disc and a lens group, the lens group comprises a dynamic screen sheet group and a static screen sheet group, the dynamic screen sheet group rotates along with the rotating disc, and a pattern of a dynamic screen sheet in the dynamic screen sheet group is overlapped with a pattern of a static screen sheet in the static screen sheet group after the dynamic screen sheet is projected by a light source to form a dynamic light and shadow effect; meanwhile, the edge of the shell is provided with the buckle which is matched with the groove and the bayonet of the projection tray in the utility model, so that the projection tray can be quickly assembled and disassembled without screws, and the operation convenience of a user is improved.

Description

Technical Field

[0001] This utility model relates to the field of optical technology, specifically to a projection sheet assembly, projection tray, and projection lamp for a projection lamp. Background Technology

[0002] Traditional projectors generally use a fixed projection sheet structure, whose static imaging characteristics limit the presentation of dynamic visual effects; existing dynamic projection sheets are often separated from static elements, making it difficult to achieve synchronous superposition projection of the two, which limits the expression of creativity; in terms of installation structure, most projection sheets are fixed by screws or other methods, making it difficult for users to replace them. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a projection sheet assembly, a projection tray and a projection lamp for a projection lamp, so as to solve at least one of the above-mentioned problems.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides a projection sheet assembly for a projection lamp, the projection sheet assembly comprising a housing, a rotating disk, and a lens group;

[0007] The housing includes an upper housing and a lower housing joined together, with a receiving cavity formed between the upper housing and the lower housing. The housing has a notch that exposes part of the receiving cavity to the outside of the housing.

[0008] The rotating disk is disc-shaped and rotatably disposed within the receiving cavity. The edge of the rotating disk is exposed to the outside of the housing through the notch. When the exposed part of the rotating disk is moved, the rotating disk rotates within the receiving cavity.

[0009] The lens assembly includes a dynamic projection lens assembly and a static projection lens assembly. The dynamic projection lens assembly is parallel to the surface of the rotating disk and is fixedly mounted on the rotating disk, rotating together with the rotating disk. The static projection lens assembly is fixed inside the housing, and the static projection lens assembly and the dynamic projection lens assembly are stacked in the direction of the projection beam. The upper housing and the lower housing are provided with corresponding projection holes for light to pass through.

[0010] Preferably, the rotating disk has an annular enclosure protruding towards the lower housing, and the lower housing has a groove corresponding to the outer diameter of the annular enclosure. The annular enclosure is nested in the groove to provide a rotation axis for the rotating disk. The dynamic projection sheet group is disposed within the area surrounded by the annular enclosure, and the center of the groove has a through hole for light to pass through, so as to project the content of the dynamic projection sheet group.

[0011] Preferably, the edge of the rotating disk has teeth evenly distributed along the circumferential direction.

[0012] Preferably, the dynamic projection sheet group includes two backing glass sheets and a movable projection sheet located between the backing glass sheets. The movable projection sheet is parallel to the backing glass sheets, and the center of the contour of the movable projection sheet and the backing glass sheets coincides with the rotation center axis of the rotating disk.

[0013] Preferably, the static projection sheet group is disposed on the upper housing or the lower housing, and the static projection sheet group includes static projection sheets, the outline center of which coincides with the rotation center axis of the rotating disk.

[0014] Preferably, the edge of the housing has protruding buckles for securing it to an external tray.

[0015] This utility model also provides a projection tray for a projection lamp, including a tray and a projection sheet assembly as described above. The tray has a groove that matches the shape of the projection sheet assembly, and the inner sidewall of the groove has a snap-fit ​​corresponding to the buckle.

[0016] Preferably, the periphery shape of the groove matches the outer contour of the housing of the projection sheet assembly, and the bottom of the groove is provided with a positioning plane that fits against the bottom surface of the lower housing of the projection sheet assembly.

[0017] This utility model also provides a projection lamp, including a lamp body and the projection tray described above. The lamp body is provided with an optical path structure for projecting images onto the projection sheet assembly.

[0018] (III) Beneficial Effects

[0019] This invention relates to a projection sheet for a projection lamp, in which a dynamic projection sheet assembly is fixed on a rotatable rotating disk. Dynamic light and shadow effects are achieved by externally driving a toothed convex shape to rotate. The housing edge is equipped with snap-fit ​​devices that match the tray groove and bayonet, allowing for quick assembly and disassembly without screws, thus improving user convenience. Attached Figure Description

[0020] Figure 1 This is a front view schematic diagram of a projection sheet assembly for a projection lamp according to the present invention;

[0021] Figure 2 for Figure 1 A left-side schematic diagram of a slide assembly for a projection lamp;

[0022] Figure 3 for Figure 1 A rear view schematic diagram of a projection sheet assembly for a projection lamp;

[0023] Figure 4 for Figure 1 sectional view along section line AA;

[0024] Figure 5 for Figure 1 An exploded view of a projection panel assembly for a projection lamp;

[0025] Figure 6 for Figure 1 A three-dimensional schematic diagram of a projection sheet assembly used in a projection lamp;

[0026] Figure 7 for Figure 6 A three-dimensional schematic diagram from another perspective of a slide assembly used in a projection lamp;

[0027] Figure 8 This is a front view schematic diagram of a projection tray for a projection lamp according to the present invention;

[0028] Figure 9 for Figure 8 A right-side view of a projection tray used for a projection lamp;

[0029] Figure 10 for Figure 8 A rear view schematic diagram of a projection tray used for a projection lamp;

[0030] Figure 11 for Figure 8 A stereoscopic view of a projection tray used for a projection lamp;

[0031] Figure 12 for Figure 11 A three-dimensional schematic diagram of a projection tray used for a projection lamp from another perspective;

[0032] Figure 13 This is a front view schematic diagram of the combined state of a projection tray for a projection lamp and a projection sheet for a projection lamp according to the present invention.

[0033] Figure 14 for Figure 13 A three-dimensional schematic diagram of a projection tray for a projection lamp and a projection sheet for a projection lamp in combination.

[0034] [Explanation of Labels in the Attached Image]

[0035] 100: Slide assembly; 200: Projection tray;

[0036] 1: Rotating disk; 21: Upper housing; 22: Lower housing; 3: Lens assembly

[0037] 301: Dynamic slide group; 302: Static slide group

[0038] 31: Glass slide; 32: Moving slide; 33: Still slide

[0039] 4: Buckle; 5: Buckle opening. Detailed Implementation

[0040] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0041] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0042] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; "connection" can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] See details Figures 1-7 The present invention provides a projection sheet assembly 100 for a projection lamp, comprising a housing, a rotating disk 1, and a lens assembly 3.

[0045] The housing includes an upper housing 21 and a lower housing 22 that are spliced ​​together. A receiving cavity is formed between the upper housing 21 and the lower housing 22. The housing has a notch that exposes part of the receiving cavity to the outside of the housing.

[0046] The rotating disk 1 is disc-shaped and rotatably disposed in the receiving cavity. The edge of the rotating disk 1 is exposed to the outside of the housing through the notch. When the exposed part of the rotating disk 1 is moved, the rotating disk 1 rotates in the receiving cavity.

[0047] The lens group 3 includes a dynamic projection sheet group 301 and a static projection sheet group 302. The dynamic projection sheet group 301 is parallel to the disk surface of the rotating disk 1 and is fixedly disposed on the rotating disk 1, rotating together with the rotating disk 1. The static projection sheet group 302 is fixed inside the housing, and the static projection sheet group 302 and the dynamic projection sheet group 301 are stacked in the direction of the projection beam. The upper housing 21 and the lower housing 22 are provided with corresponding projection holes for light to pass through.

[0048] The upper and lower housings 22 are joined to form a sealed cavity, providing mechanical support and protection. Meanwhile, a notch on the side of the housing exposes the edge of the rotating disk 1 to the outside. The user can rotate the exposed rotating disk 1 using an external power source (e.g., manually turning the rotating disk 1 or using a gear transmission assembly), driving the rotating disk 1 to rotate within the cavity, thus rotating the dynamic projection sheet assembly 301. The dynamic projection sheet assembly 301 is fixed to the rotating disk 1, and the dynamic projection sheets are mounted parallel to the disk surface, rotating synchronously with the rotating disk 1. When the projector light passes through the dynamic projection sheets on the rotating disk 1, its rotational motion causes the projected pattern to dynamically change on the external imaging surface.

[0049] Preferably, the rotating disk 1 has an annular enclosure protruding towards the lower housing 22, and the lower housing 22 has a groove corresponding to the outer diameter of the annular enclosure. The annular enclosure is nested in the groove to provide a rotation axis for the rotating disk 1. The dynamic projection sheet group 301 is disposed within the area surrounded by the annular enclosure, and the center of the groove has a through hole for light to pass through, so as to project the content of the dynamic projection sheet group.

[0050] The annular enclosure protruding from the rotating disk 1 to the lower housing 22 forms a rotatable fit with the groove of the lower housing 22, which not only restricts the radial offset of the rotating disk 1 but also allows it to rotate freely. This replaces the traditional bearing structure, simplifies the mechanical design, and the height of the annular enclosure matches the groove to prevent the rotating disk 1 from moving up and down, ensuring that the dynamic projection sheet is always within the focal plane of the projection light path.

[0051] Preferably, the edge of the rotating disk 1 has teeth evenly distributed along the circumferential direction.

[0052] Using a motor or other power source to drive gears, when the gears mesh, the motor can control the creation of scenes with preset dynamic effects.

[0053] Preferably, the dynamic projection sheet group 301 includes two backing glass sheets 31 and a movable projection sheet 32 ​​located between the backing glass sheets 31. The movable projection sheet 32 ​​is parallel to the backing glass sheets 31, and the outline center of the movable projection sheet 32 ​​and the backing glass sheets 31 coincides with the rotation center axis of the rotating disk 1.

[0054] The movable slide 32 is sandwiched between two backing glass sheets 31, forming a "sandwich" structure. The backing glass sheets 31 prevent the movable slide 32 from bending or wrinkling due to external forces, ensuring a flat projected image. At the same time, the backing glass sheets 31 can also suppress the deformation of the movable slide 32, preventing it from curling due to humidity changes and maintaining projection clarity over a long period.

[0055] Preferably, the static projection sheet group 302 is disposed on the upper housing 21 or the lower housing 22, and the static projection sheet group 302 includes a static projection sheet 33, the outline center of which coincides with the rotation center axis of the rotating disk 1.

[0056] The static projection panel 302 is fixed to the housing and physically separated from the rotating dynamic panel. The static pattern is projected directly through the projection hole, while the dynamic pattern is generated by rotating the dynamic panel. The two optical paths are coaxially superimposed to form a composite image. Coaxial alignment is ensured: the center of the outline of the static projection panel 33 coincides with the central axis of the rotating disk 1, ensuring that there is no relative offset between the static pattern and the dynamic effect on the projection surface.

[0057] Preferably, the edge of the housing has a protruding buckle 4, which is used to fix it to an external tray.

[0058] See details Figures 8-14 The present invention also provides a projection tray 200 for a projection lamp, including a tray and a projection sheet assembly 100 as described above. The tray is provided with a groove that matches the shape of the projection sheet assembly 100, and the inner sidewall of the groove is provided with a snap 5 corresponding to the buckle 4.

[0059] Preferably, the periphery shape of the groove matches the outer contour of the housing of the projection sheet assembly 100, and the bottom of the groove is provided with a positioning plane that fits against the bottom surface of the lower housing 22 of the projection sheet assembly 100.

[0060] The buckle 4, protruding from the edge of the housing, is an elastic cantilever beam with a protrusion at the end. After being inserted into the groove of the projection tray 200, the barb engages with the latch 5 on the inner wall of the groove, forming a mechanical lock. During installation, the buckle 4 is compressed and elastically bends inward. After entering the groove, it returns to its original shape, and the protrusion engages with the latch 5, achieving tool-free fixation. During disassembly, the user presses the release end of the buckle 4 to bend it and remove it from the latch 5.

[0061] This utility model also provides a projection lamp, including a lamp body and the projection tray 200 described above. The lamp body is provided with an optical path structure for projecting images onto the projection sheet assembly 100.

[0062] The lamp body integrates a light source module (such as a condenser lens group, a projection tray interface, and a projection lens). After being focused, the light evenly illuminates the projection sheet, passes through the projection sheet, and is magnified by the lens and projected onto an external imaging surface. The rotating disk 1 rotates through a mechanism inside the lamp body, driving the dynamic projection sheet group 301 to move, generating continuous dynamic projection, which is superimposed with the content of the static projection sheet 33 to form a composite image.

[0063] It should be understood that the above description of the specific embodiments of this utility model is only for illustrating the technical route and features of this utility model, and its purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. However, this utility model is not limited to the specific embodiments described above. All changes or modifications made within the scope of the claims of this utility model should be covered by the protection scope of this utility model.

Claims

1. A slide assembly for a projection lamp, characterized in that, The projection panel assembly includes a housing, a rotating disk, and a lens group; The housing includes an upper housing and a lower housing joined together, with a receiving cavity formed between the upper housing and the lower housing. The housing has a notch that exposes part of the receiving cavity to the outside of the housing. The rotating disk is disc-shaped and rotatably disposed within the receiving cavity. The edge of the rotating disk is exposed to the outside of the housing through the notch. When the exposed part of the rotating disk is moved, the rotating disk rotates within the receiving cavity. The lens assembly includes a dynamic projection lens assembly and a static projection lens assembly. The dynamic projection lens assembly is parallel to the surface of the rotating disk and is fixedly mounted on the rotating disk, rotating together with the rotating disk. The static projection lens assembly is fixed inside the housing, and the static projection lens assembly and the dynamic projection lens assembly are stacked in the direction of the projection beam. The upper housing and the lower housing are provided with corresponding projection holes for light to pass through.

2. The projector assembly as claimed in claim 1, characterized in that, The rotating disk has an annular enclosure protruding towards the lower housing. The lower housing has a groove corresponding to the outer diameter of the annular enclosure. The annular enclosure is nested in the groove to provide a rotation axis for the rotating disk. The dynamic projection sheet group is disposed within the area surrounded by the annular enclosure. The center of the groove has a through hole for light to pass through, so as to project the content of the dynamic projection sheet group.

3. The projector assembly as claimed in claim 2, characterized in that, The edge of the rotating disk has teeth evenly distributed along the circumferential direction.

4. The projector assembly as claimed in claim 1, characterized in that, The dynamic projection panel group includes two backing glass plates and a movable projection panel located between the backing glass plates. The movable projection panel is parallel to the backing glass plates, and the center of the contour of the movable projection panel and the backing glass plates coincides with the rotation center axis of the rotating disk.

5. The projector assembly as claimed in claim 4, characterized in that, The static projection sheet assembly is disposed on the upper housing or the lower housing, and the static projection sheet assembly includes a static projection sheet, the outline center of which coincides with the rotation center axis of the rotating disk.

6. The projector assembly as claimed in claim 1, characterized in that, The housing edge has protruding buckles for securing it to an external tray.

7. A projection tray for a projection lamp, characterized in that, The device includes a tray and a slide assembly as described in claim 6, wherein the tray has a groove that matches the shape of the slide assembly, and the inner sidewall of the groove has a latch corresponding to the buckle.

8. The projection tray as described in claim 7, characterized in that, The periphery shape of the groove matches the outer contour of the housing of the projection panel assembly, and the bottom of the groove is provided with a positioning plane that fits against the bottom surface of the lower housing of the projection panel assembly.

9. A projection lamp, characterized in that, It includes a lamp body and a projection tray as described in claim 8, wherein the lamp body is provided with an optical path structure for projecting images onto the projection sheet assembly.

Images