Projection assembly for a projection lamp and projection lamp

Abstract

The utility model relates to optical technology field, concretely relates to a projection assembly and projection lamp for projection lamp, include: optical projection unit, projection tray and drive assembly, optical projection unit detachably fixed in projection tray, optical projection unit includes lens group and dynamic drive assembly, and lens group includes along the same optical axis setting dynamic projection piece group and static projection piece group, dynamic drive assembly includes drive assembly and with the coaxial setting of optical axis's rotating disc, and dynamic projection piece group fixed mounting is on the rotating disc, and drive assembly provides power to drive rotating disc rotates around the optical axis, to make dynamic projection piece group relative rotation relative to static projection piece group, through detachable optical projection unit and rotating disc drive dynamic projection piece group, realize dynamic projection high -efficient stability, and the structure is simple, three modularization's engagement structure supports user bare hands quick dismounting and replacement, and promotion maintenance and scene adaptation.

Description

Technical Field

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

[0002] Projection lights, widely used optical devices for creating ambiance, advertising displays, and entertainment decoration, primarily function to project specific patterns or images onto a target surface through an optical system. Traditional projection lights typically employ fixed projection components, with internal optical elements (such as the projection sheet) often being integrated into a single unit or a static structure. This presents several technical limitations: In most existing projection lights, the optical projection unit is fixedly installed inside the lamp body. Changing the projected content often requires disassembling the entire lamp body or using specialized tools, a cumbersome process that can easily damage delicate optical components, failing to meet the need for rapid switching between different scenarios. Furthermore, the housing, drive components, and optical units of existing projection components are often rigidly connected or integrally packaged. If the optical components become contaminated or damaged, or the drive components malfunction, repairs often require replacing the entire module, resulting in high maintenance costs and low resource utilization.

[0003] Therefore, there is an urgent need to develop a projection component and projection lamp that allows for easy replacement of projection content, convenient disassembly and maintenance, and can achieve dynamic projection effects. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a projection component and a projection lamp for a projection lamp, so as to solve at least one of the above-mentioned problems.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides a projection assembly for a projection lamp, the projection assembly comprising: an optical projection unit, a projection tray, and a driving assembly, wherein,

[0008] The projection tray has a fixing groove for fixing the optical projection unit, and the optical projection unit is detachably fixed in the fixing groove.

[0009] The optical projection unit includes a lens group and a dynamic driving component. The lens group includes a dynamic projection sheet group and a static projection sheet group arranged along the same optical axis.

[0010] The dynamic drive assembly includes a drive component and a rotating disk coaxially arranged with the optical axis. The dynamic projection sheet group is fixedly mounted on the rotating disk. The drive component provides power to drive the rotating disk to rotate around the optical axis, so that the dynamic projection sheet group rotates relative to the static projection sheet group.

[0011] Preferably, the optical projection unit further includes an upper housing and a lower housing spliced ​​together, with a receiving cavity formed between the upper housing and the lower housing, and a notch provided on the lower housing, the notch exposing part of the space of the receiving cavity to the outside of the housing;

[0012] The rotating disk is disc-shaped and rotatably disposed within the receiving cavity, with the edge of the rotating disk exposed to the outside of the housing through the notch;

[0013] The dynamic projection sheet group is parallel to the disk surface direction of the rotating disk and is fixedly disposed on the rotating disk. It rotates together with the rotating disk. When the exposed part of the rotating disk is moved by the driving component, the rotating disk rotates within the receiving cavity.

[0014] The static projection sheet group is fixed inside the housing, and the static projection sheet group and the dynamic projection sheet group 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.

[0015] Preferably, the projection assembly further includes a base, on which a receiving groove is provided to fix the projection tray, the projection tray being detachably fixed within the receiving groove.

[0016] Preferably, the drive assembly includes a drive motor and a gear. The fixed end of the drive motor is fixed to the base, and the drive output end of the drive motor is connected to the gear. The edge of the rotating disk has protruding teeth that mesh with the gear.

[0017] Preferably, the inner wall of the receiving groove of the base has a protruding tenon, and the projection tray has a groove that matches the tenon.

[0018] 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.

[0019] 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 outline center of the movable projection sheet and the backing glass sheets coincides with the rotation center axis of the rotating disk. The static projection sheet group is disposed on the upper housing or the lower housing, and the static projection sheet group includes a static projection sheet. The outline center of the static projection sheet coincides with the rotation center axis of the rotating disk.

[0020] Preferably, the lower housing has a protruding bayonet on its edge, and the inner wall of the fixing groove of the projection tray has a buckle that matches the shape of the bayonet.

[0021] Preferably, the periphery of the fixing groove matches the outer contour of the housing, and the bottom of the fixing groove is provided with a positioning plane that fits against the bottom surface of the lower housing.

[0022] This utility model also provides a projection lamp, including a lamp body and a projection component as described above. The lamp body is provided with an optical path structure for projecting images onto the projection component.

[0023] (III) Beneficial Effects

[0024] This invention relates to a projection assembly for a projection lamp, and within the projection lamp itself, a detachable optical projection unit and a rotating disk drive a dynamic projection sheet assembly, achieving efficient and stable dynamic projection with a simplified structure. The three-level modular snap-fit ​​structure allows for quick manual disassembly and replacement by the user, improving maintainability and scene adaptability. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a projection component for a projection lamp according to the present invention;

[0026] Figure 2 for Figure 1 A three-dimensional schematic diagram of the projection component used for the projection lamp from another perspective;

[0027] Figure 3 for Figure 1 An exploded view of the projection component used for the projection lamp;

[0028] Figure 4 This is a front view schematic diagram of an optical projection unit for a projection assembly of a projection lamp according to the present invention;

[0029] Figure 5 for Figure 4 A rear view schematic diagram of the optical projection unit of the projection assembly used for the projection lamp;

[0030] Figure 6 for Figure 4 A side view schematic diagram of the optical projection unit of the projection assembly used for the projection lamp;

[0031] Figure 7 for Figure 4 A schematic diagram of a half-section along the middle AA;

[0032] Figure 8 for Figure 4 An exploded view of the optical projection unit of the projection assembly used for the projection lamp;

[0033] Figure 9 This is a perspective view of a base for a projection assembly of a projection lamp according to the present invention.

[0034] Figure 10 This is a perspective view of a projection tray for a projection assembly of a projection lamp according to the present invention.

[0035] [Explanation of Labels in the Attached Image]

[0036] 100: Optical projection unit;

[0037] 10: Lens group; 11: Dynamic slide group; 12: Static slide group;

[0038] 111: Moving slide; 112: Glass backing slide; 121: Still slide;

[0039] 13: Upper housing; 14: Lower housing; 15: Rotating disk; 141: Bayonet;

[0040] 200: Projection tray;

[0041] 21: Fixing slot; 22: Buckle; 23: Slot;

[0042] 300: Base;

[0043] 31: Receiving groove; 32: Locking tenon;

[0044] 400: Driver component;

[0045] 41: Gear; 42: Drive motor. Detailed Implementation

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] See details Figures 1 to 10 This utility model discloses a projection assembly for a projection lamp, the projection assembly comprising: an optical projection unit 100, a projection tray 200, and a driving assembly 400, wherein...

[0051] The projection tray 200 has a fixing groove 21 for fixing the optical projection unit 100. The optical projection unit 100 is detachably fixed in the fixing groove 21.

[0052] The optical projection unit 100 includes a lens group 10 and a dynamic driving component 400. The lens group 10 includes a dynamic projection sheet group 11 and a static projection sheet group 12 arranged along the same optical axis.

[0053] The dynamic drive assembly 400 includes a drive assembly 400 and a rotating disk 15 coaxially arranged with the optical axis. The dynamic projection sheet group 11 is fixedly mounted on the rotating disk 15. The drive assembly 400 provides power to drive the rotating disk 15 to rotate around the optical axis, so that the dynamic projection sheet group 11 rotates relative to the static projection sheet group 12.

[0054] The optical projection unit 100 is detachably fixed to the projection tray 200 via the fixing slot 21, which facilitates the user to quickly replace or maintain the optical projection unit 100 and improves the flexibility and practicality of the component; the relative rotation of the dynamic projection sheet group 11 relative to the static projection sheet group 12 is achieved by the drive component 400 and the rotating disk 15, which can generate dynamic images and enhance the visual appeal and interest of the projection without the need for a complicated external mechanism.

[0055] Preferably, the optical projection unit 100 further includes an upper housing 13 and a lower housing 14 spliced ​​together, with a receiving cavity formed between the upper housing 13 and the lower housing 14, and a notch provided on the lower housing 14, the notch exposing part of the space of the receiving cavity to the outside of the housing;

[0056] The rotating disk 15 is disc-shaped and rotatably disposed within the receiving cavity, with the edge of the rotating disk 15 exposed to the outside of the housing through the notch;

[0057] The dynamic projection sheet group 11 is parallel to the disk surface direction of the rotating disk 15 and is fixedly disposed on the rotating disk 15. It rotates together with the rotating disk 15. When the exposed part of the rotating disk 15 is moved by the driving component 400, the rotating disk 15 rotates in the receiving cavity.

[0058] The static projection sheet group 12 is fixed inside the housing, and the static projection sheet group 12 and the dynamic projection sheet group 11 are stacked in the direction of the projection beam; the upper housing 13 and the lower housing 14 are provided with corresponding projection holes for light to pass through.

[0059] The upper housing 13 and the lower housing 14 are joined together to form a sealed receiving cavity, providing mechanical support and protection. Meanwhile, a notch on the side of the lower housing 14 exposes the edge of the rotating disk 15 to the outside. The user rotates the exposed rotating disk 15 using the drive assembly 400, driving the rotating disk 15 to rotate within the receiving cavity, thereby rotating the dynamic projection sheet assembly 11. The dynamic projection sheet assembly 11 is fixed to the rotating disk 15, and the dynamic projection sheets are mounted parallel to the disk surface, rotating synchronously with the rotating disk 15. When the projector lamp light passes through the dynamic projection sheets on the rotating disk 15, its rotational motion causes the projected pattern to dynamically change on the external imaging surface.

[0060] Preferably, the projection assembly further includes a base 300, on which a receiving groove 31 is provided to fix the projection tray 200, and the projection tray 200 is detachably fixed in the receiving groove 31.

[0061] The base 300 provides a fixed platform, and the projection tray 200 is embedded in the receiving slot 31 as an independent module, forming a three-level detachable structure of "base 300 → projection tray 200 → optical projection unit 100", which enhances the modularity of the system and facilitates separate maintenance or replacement. The receiving slot 31 provides precise positioning and physical limit for the projection tray 200, ensuring the stability of the optical axis direction of the optical projection unit 100, reducing offset or vibration during the projection process, and improving imaging consistency.

[0062] Preferably, the drive assembly 400 includes a drive motor 42 and a gear 41. The fixed end of the drive motor 42 is fixed to the base 300, and the drive output end of the drive motor 42 is connected to the gear 41. The edge of the rotating disk 15 has protruding teeth that mesh with the gear 41.

[0063] Gear 41 directly meshes with tooth cam. When the motor drives gear 41 to rotate, the rotating disk 15 rotates around the optical axis through the meshing relationship between gear 41 and tooth cam. At the same time, the meshing transmission between gear 41 and tooth cam has no intermediate links, reducing power loss and improving the response speed and positioning accuracy of the dynamic projection panel group 11.

[0064] Preferably, the inner wall of the receiving groove 31 of the base 300 has a tenon 32 protruding from it, and the projection tray 200 has a groove 23 that matches the tenon 32.

[0065] The matching design of the latch 32 and the slot 23 ensures that the projection tray 200 does not shift or shake within the receiving groove 31, preventing the optical projection unit 100 from deviating from the optical axis due to vibration and ensuring projection stability. The latch 32 and the slot 23 are purely mechanical locking structures that do not require tools or complex operations, which improves the speed of installation and disassembly and greatly enhances maintenance efficiency.

[0066] Preferably, the rotating disk 15 has an annular enclosure protruding towards the lower housing 14, and the lower housing 14 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 15. The dynamic projection sheet group 11 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 11.

[0067] The annular enclosure protruding from the rotating disk 15 and the groove of the lower housing 14 form a rotatable fit, which not only restricts the radial offset of the rotating disk 15, 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 15 from moving up and down, ensuring that the dynamic projection sheet is always within the focal plane of the projection light path.

[0068] Preferably, the dynamic projection sheet group 11 includes two backing glass sheets 112 and a movable projection sheet 111 located between the backing glass sheets 112. The movable projection sheet 111 is parallel to the backing glass sheets 112, and the outline center of the movable projection sheet 111 and the backing glass sheets 112 coincides with the rotation center axis of the rotating disk 15. The static projection sheet group 12 is disposed on the upper housing 13 or the lower housing 14. The static projection sheet group 12 includes a static projection sheet 121, and the outline center of the static projection sheet 121 coincides with the rotation center axis of the rotating disk 15.

[0069] The movable slide 111 is sandwiched between two backing glass sheets 112, forming a "sandwich" structure. The backing glass sheets 112 prevent the movable slide 111 from bending or wrinkling due to external forces, ensuring a flat projected image. At the same time, the backing glass sheets 112 can also suppress the deformation of the movable slide 111, preventing it from curling due to humidity changes and maintaining projection clarity over a long period.

[0070] The static projection sheet 121 is fixed to the upper housing 13 and is physically separated from the rotating dynamic sheet group. The static pattern is projected directly through the projection hole, while the dynamic pattern is generated by rotating the dynamic sheet group. 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 sheet 121 coincides with the central axis of the rotating disk 15, ensuring that there is no relative offset between the static pattern and the dynamic effect on the projection surface.

[0071] Preferably, the lower housing 14 has a bayonet 141 protruding from its edge, and the inner wall of the fixing groove 21 of the projection tray 200 is provided with a buckle 22 that matches the shape of the bayonet 141.

[0072] Preferably, the periphery shape of the fixing groove 21 matches the outer contour of the housing, and the bottom of the fixing groove 21 is provided with a positioning plane that fits against the bottom surface of the lower housing 14.

[0073] The lower housing 14 has a latch 141 on its edge. When inserted into the groove of the projection tray 200, the inner wall of the projection tray 200 undergoes elastic deformation, causing the latch 22 on the inner wall to engage and return to its original shape, forming a mechanical lock. This achieves tool-free fixing. During disassembly, the user can pull the edge of the lower housing 14 to remove the entire optical projection unit 100.

[0074] This utility model also provides a projection lamp, including a lamp body and a projection component as described above. The lamp body is provided with an optical path structure for projecting images onto the projection component.

[0075] The lamp housing integrates a light source. After being focused, the light evenly illuminates the projection sheet, passes through the projection sheet, and is magnified by the lens before being projected onto an external imaging surface. The rotating disk 15 rotates through a mechanism within the lamp housing, causing the dynamic projection sheet assembly 11 to move, generating a continuous dynamic projection, which is superimposed on the content of the static projection sheet 121 to form a composite image.

[0076] 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 projection assembly for a projection lamp, characterized in that, The projection assembly includes: an optical projection unit, a projection tray, and a driving assembly, wherein... The projection tray has a fixing groove for fixing the optical projection unit, and the optical projection unit is detachably fixed in the fixing groove. The optical projection unit includes a lens group and a dynamic driving component. The lens group includes a dynamic projection sheet group and a static projection sheet group arranged along the same optical axis. The dynamic drive assembly includes a drive component and a rotating disk coaxially arranged with the optical axis. The dynamic projection sheet group is fixedly mounted on the rotating disk. The drive component provides power to drive the rotating disk to rotate around the optical axis, so that the dynamic projection sheet group rotates relative to the static projection sheet group.

2. The projection assembly as described in claim 1, characterized in that, The optical projection unit also includes an upper housing and a lower housing that are spliced ​​together. A receiving cavity is formed between the upper housing and the lower housing. A notch is provided on the lower housing, and the notch exposes part of the space of the receiving cavity to the outside of the housing. The rotating disk is disc-shaped and rotatably disposed within the receiving cavity, with the edge of the rotating disk exposed to the outside of the housing through the notch; The dynamic projection sheet group is parallel to the disk surface direction of the rotating disk and is fixedly disposed on the rotating disk. It rotates together with the rotating disk. When the exposed part of the rotating disk is moved by the driving component, the rotating disk rotates within the receiving cavity. The static projection sheet group is fixed inside the housing, and the static projection sheet group and the dynamic projection sheet group 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.

3. The projection assembly as described in claim 2, characterized in that, The projection assembly also includes a base with a receiving groove for fixing the projection tray, which is detachably fixed in the receiving groove.

4. The projection assembly as described in claim 3, characterized in that, The drive assembly includes a drive motor and a gear. The fixed end of the drive motor is fixed to the base, and the drive output end of the drive motor is connected to the gear. The edge of the rotating disk has protruding teeth that mesh with the gear.

5. The projection assembly as described in claim 3, characterized in that, The base has a tenon protruding from the inner wall of the receiving groove, and the projection tray has a slot that matches the tenon.

6. The projection assembly as described in claim 2, 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.

7. The projection assembly as described in claim 2, characterized in that, 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 outline center of the movable projection sheet and the backing glass sheets coincides with the rotation center axis of the rotating disk. The static projection sheet group is disposed on the upper housing or the lower housing. The static projection sheet group includes a static projection sheet, and the outline center of the static projection sheet coincides with the rotation center axis of the rotating disk.

8. The projection assembly as claimed in claim 2, characterized in that, The lower housing has a protruding bayonet on its edge, and the inner wall of the fixing groove of the projection tray has a buckle that matches the shape of the bayonet.

9. The projection assembly as claimed in claim 2, characterized in that, The periphery of the fixing groove matches the outer contour of the housing, and the bottom of the fixing groove is provided with a positioning plane that fits against the bottom surface of the lower housing.

10. A projection lamp, comprising a lamp body and a projection component as described in any one of claims 1-9, wherein the lamp body is provided with an optical path structure for projecting an image onto the projection component.

Images