Lens rotation adjusting mechanism and projection device

Abstract

A lens rotation adjusting mechanism and a projection device, the lens rotation adjusting mechanism comprises a face shell and a lens assembly, the face shell is provided with a mounting groove, the mounting groove is internally provided with a first sliding part, the first sliding part is distributed in an arc shape, and the arc shape arches towards the direction of the lens assembly; the lens assembly is provided with a second sliding part; and the second sliding part can be clamped and slide along the first sliding part, so that one end, far away from the surface shell, of the lens assembly rotates around the surface shell. According to the lens rotation adjusting mechanism provided by the utility model, the first sliding part bent towards the lens assembly is arranged in the mounting groove preset on the surface shell, and the second sliding part is arranged on the lens assembly, so that one end of the lens assembly back to the surface shell rotates around the surface shell, and the purpose of rotatably adjusting the angle of the lens assembly is achieved.

Description

Technical Field

[0001] The utility model relates to the field of projection machinery, in particular to a lens rotation adjustment mechanism and a projection device. Background Art

[0002] Projection devices, such as projection lamps and projectors, are usually used in entertainment scenes, or used to decorate the environment and create a personalized atmosphere.

[0003] However, the lenses of the projection devices currently available on the market are fixed. When the projection direction of light and shadow needs to be adjusted, it can usually only be adjusted by swinging the entire projection device.

[0004] Based on this, it is necessary to provide a lens rotation adjustment mechanism and a projection device. Summary of the Invention

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions:

[0006] A lens rotation adjustment mechanism includes a face shell 2, a lens assembly 1 movably connected to the face shell 2, a mounting groove 21 provided on the face shell 2, a first sliding portion 22 provided in the mounting groove 21, the first sliding portion 22 being distributed in an arc shape, and the arc arches toward the lens assembly 1; a second sliding portion 12 is provided on the lens assembly 1; the second sliding portion 12 can be clamped with the first sliding portion 22 and slide along the first sliding portion 22, thereby causing the end of the lens assembly 1 away from the face shell 2 to rotate around the face shell 2.

[0007] Furthermore, the first sliding portion 22 is an arc-shaped guide groove or an arc-shaped guide rail distributed on the side wall of the mounting groove 21, and the second sliding portion 12 is an arc-shaped guide sliding block that cooperates with the guide groove or a guide sliding mouth that cooperates with the arc-shaped guide rail, and the lens assembly 1 extends into the face shell 2 and is connected to the first sliding portion 22.

[0008] In some other embodiments, the mounting groove 21 is provided in the lens assembly 1, the second sliding portion 12 is an arc-shaped guide groove or an arc-shaped guide rail distributed on the side wall of the mounting groove 21, the arc-shaped guide groove or the arc-shaped guide rail is arched toward the direction of the face shell 2, the first sliding portion 22 is a guide sliding block cooperating with the arc-shaped guide groove or a guide sliding mouth cooperating with the arc-shaped guide rail, and the face shell 2 component portion extends into the lens assembly 1 and is connected to the second sliding portion 12.

[0009] Furthermore, a guide sliding surface 121 is provided on the guide sliding block or the guide sliding opening, which is suitable for fitting with the arc-shaped guide groove or the arc-shaped guide rail.

[0010] Furthermore, the lens assembly 1 includes a mounting frame and a lens barrel 11 connected to the mounting frame; the mounting frame has a pinch plate 14 ; and the second sliding portion 12 is connected to the pinch plate 14 .

[0011] Furthermore, a guide surface 122 is provided on the outer side of the guide sliding block or the guide sliding opening, suitable for guiding the second sliding portion 12 to be inserted into the first sliding portion 22 .

[0012] Furthermore, the mounting frame includes a curved panel 13; the lens barrel 11 is connected to the curved panel 13; a guide arc surface 23 is provided in the mounting groove 21 and is in contact with the curved panel 13, and both ends of the curved panel 13 are always located in the mounting groove 21 during the rotation of the lens assembly 1.

[0013] Furthermore, a mounting hole 131 is provided on the curved panel 13; a limiting groove 111 is provided on the outer wall of the lens barrel 11; and a limiting member 3 is also included. After the lens barrel 11 passes through the mounting hole 131, the limiting member 3 is snapped into the limiting groove 111, thereby limiting one end of the lens barrel 11 on the inner side of the curved panel 13.

[0014] Furthermore, a mounting platform 16 is provided on the curved panel 13, and a card slot 161 is provided at one end of the mounting platform 16, and a fixing slot 162 is provided at the other end; it also includes a cover plate 15, one end of which is snapped into the card slot 161, and the other end is snapped into the fixing slot 162 or connected to the fixing slot 162 through a fastener, so that the lens barrel 11 is fixed between the cover plate 15 and the limit member 3.

[0015] Furthermore, it also includes a stop block 17, which is connected to the mounting bracket; a stop portion 24 is provided in the mounting groove 21 to limit the stop block 17, so that the stop block 17 is always located in the mounting groove 21.

[0016] The present invention also provides a projection device, comprising a lens rotation adjustment mechanism as described in any one of the above items; a bottom shell 4, which cooperates with the surface shell 2 to form an installation space; a circuit board, which is loaded with a circuit system; and a lens group, a light source unit and a film arranged in the lens barrel 11, wherein the light source unit is electrically connected to the circuit system.

[0017] The utility model discloses a lens rotation adjustment mechanism, by arranging a first sliding portion bent toward the lens assembly in a mounting groove preset on a face shell, arranging a second sliding portion on the lens assembly, clamping the second sliding portion with the first sliding portion and sliding along the first sliding portion, so that the end of the lens assembly facing away from the face shell rotates around the face shell, thereby achieving the purpose of rotating and adjusting the angle of the lens assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 The present invention discloses a schematic structural diagram of a projection device with a lens rotation adjustment mechanism according to an embodiment of the present invention.

[0020] Figure 2 for Figure 1 Schematic diagram of the structure of the lens rotation adjustment mechanism.

[0021] Figure 3 for Figure 2 Schematic diagram of part of the explosion structure.

[0022] Figure 4 Schematic diagram of the structure of the lens assembly.

[0023] Figure 5 for Figure 4 Schematic diagram of the explosion structure.

[0024] Figure 6 for Figure 1 Schematic diagram of the explosion structure

[0025] Description of reference numerals:

[0026] 1. Lens assembly;

[0027] 11. Lens barrel; 12. Second sliding portion; 13. Arc plate; 14. Clamp plate; 15. Cover plate; 16. Mounting platform; 17. Stop block; 111. Limiting groove; 121. Guide sliding surface;

[0028] 122, guide surface; 131, mounting hole; 161, slot; 162, fixing slot;

[0029] 2. Surface shell; 21. Mounting groove; 22. First sliding portion; 23. Arc guide surface; 24. Stopper; 212. Opening;

[0030] 3. Limiting parts;

[0031] 4. Bottom shell. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments and drawings. It should be noted that the embodiments described below in conjunction with the reference drawings are exemplary and are intended to be used to explain the present invention, and should not be understood as limiting the present invention.

[0033] For example, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one such feature; "plurality" means at least two, for example, two, three, etc., unless otherwise specifically specified.

[0034] Terms such as "installed", "connected", "connected", "fixed" etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined.

[0035] For example, the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like indicate positions or location relationships based on the positions or location relationships shown in the accompanying drawings, and are intended only to facilitate description of the technical solutions of the present invention, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. For example, when a first feature is "up" or "down" a second feature, it means that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium; when a first feature is "above," "above," or "above" a second feature, it means that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature is at a higher level than the second feature; when a first feature is "below," "below," or "below" a second feature, it means that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is at a lower level than the second feature.

[0036] Example

[0037] like Figure 1-5As shown, the present invention provides a preferred embodiment of a lens rotation adjustment mechanism, which includes a face shell 2, a lens assembly 1 movably connected to the face shell 2, a mounting groove 21 provided on the face shell 2, and a first sliding portion 22 provided on the side groove wall in the mounting groove 21. The first sliding portion 22 is distributed in an arc shape, and the arc is arched toward the lens assembly 1; a second sliding portion 12 is provided on the lens assembly 1; the second sliding portion 12 can be clamped with the first sliding portion 22 and slide along the first sliding portion 22, so that the end of the lens assembly 1 away from the face shell 2 rotates around the face shell 2, ultimately achieving the purpose of adjusting the lens angle.

[0038] Specifically, the first sliding portion 22 is an arc-shaped guide groove or an arc-shaped guide rail distributed on the side wall of the mounting groove 21, and the arc-shaped arch is toward the outside of the mounting groove 21, that is, it is bent toward the direction of the lens; the second sliding portion 12 is an arc-shaped guide sliding block that cooperates with the guide groove or a guide sliding mouth that cooperates with the arc-shaped guide rail, and the lens assembly 1 extends into the face shell 2 and is connected to the first sliding portion 22; for example, in this embodiment, the first sliding portion 22 is an arc-shaped guide groove, and the second sliding portion 12 is a guide sliding block, and the portion of the lens assembly 1 having the second sliding portion 12 extends into the face shell 2, that is, the mounting groove 21, and then is snapped into the arc-shaped guide groove serving as the first sliding portion 22; as one of the simple replacement solutions, the first sliding portion 22 can be set as an arc-shaped guide rail, and the second sliding portion 12 can be set as a guide groove, and the lens assembly 1 is also installed in the way that it extends into the face shell 2.

[0039] In other embodiments, the mounting groove 21 can be provided in the lens assembly 1, with the face shell 2 partially extending into the lens assembly 1 for assembly. The second sliding portion 12 can be a curved guide groove or curved guide rail distributed on the sidewall of the mounting groove 21, the curved guide groove or curved guide rail arching toward the face shell 2. The first sliding portion 22 can be a guide slider or a guide opening that cooperates with the curved guide groove. The face shell 2 assembly can partially extend into the lens assembly 1 and connect to the second sliding portion 12. For example, the second sliding portion 12 can be a curved guide groove, and the first sliding portion 22 can be a guide slider. The portion of the face shell 2 assembly having the first sliding portion 22 extends into the lens assembly 1, namely, into the mounting groove 21, and then engages the curved guide groove serving as the second sliding portion 12. As a simple alternative, the second sliding portion 12 can be provided as a curved guide rail, and the first sliding portion 22 can be provided as a guide groove, with the face shell 2 similarly extending into the lens assembly 1 for installation.

[0040] A guide surface 121 is provided on the guide slider or guide opening, adapted to engage with an arcuate guide groove or arcuate guide rail. In this embodiment, the first sliding portion 22 is a guide groove in the shape of a circular arc segment, and the second sliding portion 12 is a guide slider. The guide surface 121 is provided on the end of the guide slider facing away from the mounting groove 21, engaging with the sidewall of the guide groove. The diameter of the imaginary circle encompassing the guide surface 121 is the same as, or substantially the same as, the diameter of the imaginary circle encompassing the arc segment of the guide groove.

[0041] Furthermore, the lens assembly 1 includes a mounting frame and a lens barrel 11 connected to the mounting frame. The mounting frame has a pinch plate 14. The second sliding portion 12 is connected to the end of the pinch plate 14 away from the mounting frame body. In this embodiment, a pinch plate 14 is provided on each side of the mounting frame. Because one end of the pinch plate 14 is connected to the mounting frame body, a guide slider or guide opening is provided at the end of the pinch plate 14. Due to the elasticity of the pinch plate 14 material, the guide slider has a certain range of elastic travel, thereby facilitating its engagement with the guide groove of the first sliding portion 22.

[0042] A guide surface 122 is provided on the outer side of the guide slider or the guide slot, adapted to guide the second sliding portion 12 into snapping into the first sliding portion 22. In this embodiment, the guide surface 122 is an inclined surface, and under the guidance of the inclined surface, the guide slider and the pinch plate 14 can be snapped into place with minimal deformation until the guide slider snaps into the guide slot.

[0043] Furthermore, the mounting frame includes a curved panel 13; the lens barrel 11 is connected to the curved panel 13, and the buckle plates 14 are located on both sides of the lens barrel 11; a guide arc surface 23 is provided in the mounting groove 21 to fit with the curved panel 13, and both ends of the curved panel 13 are always located in the mounting groove 21 during the rotation of the lens assembly 1, thereby further guiding the rotation adjustment of the lens barrel 11, and avoiding the misalignment between the mounting frame and the mounting groove 21 and the loss of part of the adjustable angle range due to external forces such as falling during later use, thereby ensuring the smoothness of the rotation adjustment and the structural stability.

[0044] A mounting hole 131 is provided on the curved panel 13; a limiting groove 111 is provided on the outer wall of the lens barrel 11; and a limiting member 3 is also included. After the lens barrel 11 passes through the mounting hole 131, the limiting member 3 is snapped into the limiting groove 111, thereby limiting one end of the lens barrel 11 on the inner side of the curved panel 13, thereby achieving the purpose of installing the lens into the mounting groove 21 of the face shell 2.

[0045] Furthermore, it is preferred that the arc panel 13 is an arc-shaped panel with an inner angle greater than 180 degrees, that is, the inner angle of the imaginary circle occupied by the arc-shaped panel is greater than 180 degrees.

[0046] A mounting platform 16 is provided on the arc panel 13, and a clamping groove 161 is provided at one end of the mounting platform (16), and a fixing groove 162 is provided at the other end; and a cover plate 15 is further provided, and one end of the cover plate is clamped into the clamping groove (161), and the other end is clamped into the fixing groove 162, or connected to the fixing groove 162 through a fastener, so that the lens barrel 11 is fixed between the cover plate 15 and the limiting member 3, and the lens barrel 11 is fixed on the face shell 2 under the joint action of the cover plate 15, the limiting member 3, the limiting groove 111, and the mounting hole 131. In this embodiment, the mounting platform 16 is formed by two left and right mounting columns, which are respectively located on both sides of the mounting hole 131. The card slot 161 is located on one side of the mounting column, and its opening is set laterally and distributed toward the other mounting column. The fixing slot 162 is set on the mounting column on the other side. The fastener is preferably a screw, and the cover plate 15 is fixedly connected to the fixing slot 162 by the screw; a card block is set at one end of the cover plate 15 to cooperate with the card slot 161, and an ear block is set at the other end to cooperate with the fixing slot 162.

[0047] Furthermore, the panel 13 includes a stopper 17 connected to the mounting bracket. A stopper 24 is provided within the mounting slot 21 to engage with the stopper 17, thereby ensuring that the stopper 17 remains within the mounting slot 21. In this embodiment, the stopper 17 is provided at one end of the curved panel 13, and the stopper 24 is provided on the arc-guiding surface 23 on the corresponding side. In other embodiments, the stopper 17 may be provided at each end of the curved panel 13, and similarly, a stopper 24 may be provided on the rear side of the arc-guiding surface 23 on both sides of the mounting slot 21.

[0048] Furthermore, on the outside of the mounting groove 21, that is, on the side facing away from the face shell 2, an opening 212 extends from the mouth of the mounting groove 21, so that the lens barrel 11 assembly is lower than the outer surface of the entire face shell 2, or the lens barrel 11 assembly is prevented from protruding from the outer surface of the face shell 2 as much as possible. The above-mentioned opening 212 provides space for the movement of the lens barrel 11 and the operation of the lens barrel 11.

[0049] like Figure 1 、 6 As shown, the present invention also provides a projection device comprising the lens rotation adjustment mechanism described above; a bottom housing 4, which cooperates with the top housing 2 to form an installation space suitable for accommodating a lens barrel 11, a mounting bracket, and other components, in part or in whole; a circuit board having a circuit system; and a lens assembly, a light source unit, and film disposed within the lens barrel 11, the light source unit being electrically connected to the circuit system. The circuit system can be powered by an internal or external power source. It should be noted that the innovation of the present invention focuses on the lens rotation adjustment mechanism; the composition, assembly, or construction of the remaining lens components, as well as the circuit system, all employ existing technologies and are not described in detail here.

[0050] The utility model discloses a lens rotation adjustment mechanism, by arranging a first sliding portion bent toward the lens assembly in a mounting groove preset on a face shell, arranging a second sliding portion on the lens assembly, clamping the second sliding portion with the first sliding portion and sliding along the first sliding portion, so that the end of the lens assembly facing away from the face shell rotates around the face shell, thereby achieving the purpose of rotating and adjusting the angle of the lens assembly.

[0051] The above embodiments only express part of the implementation methods of the invention. Based on the embodiments of the invention, certain modifications, substitutions and improvements made by those skilled in the art without creative work without departing from the concept of the invention are still within the scope of protection of the invention.

Claims

1. A lens rotation adjustment mechanism, comprising a face shell (2), a lens assembly (1) movably connected to the face shell (2), characterized in that: A mounting groove (21) is provided on the face shell (2), and a first sliding portion (22) is provided in the mounting groove (21). The first sliding portion (22) is distributed in an arc shape, and the arc is arched toward the lens assembly (1); A second sliding portion (12) is provided on the lens assembly (1); The second sliding portion (12) can be engaged with the first sliding portion (22) and slide along the first sliding portion (22), thereby causing the end of the lens assembly (1) away from the face shell (2) to rotate around the face shell (2).

2. The lens rotation adjustment mechanism according to claim 1, characterized in that: The first sliding portion (22) is an arc-shaped guide groove or an arc-shaped guide rail distributed on the side wall of the installation groove (21). The second sliding portion (12) is an arc-shaped guide sliding block matched with the guide groove or a guide sliding opening matched with the arc-shaped guide rail. The lens assembly (1) extends into the face shell (2) and is connected to the first sliding portion (22); or, The mounting groove (21) is provided on the lens assembly (1); the second sliding portion (12) is an arc-shaped guide groove or an arc-shaped guide rail distributed on the side wall of the mounting groove (21); the arc-shaped guide groove or the arc-shaped guide rail is arched toward the face shell (2); The first sliding portion (22) is a guide sliding block that cooperates with the arc-shaped guide groove or a guide sliding opening that cooperates with the arc-shaped guide rail. The face shell (2) component portion extends into the lens assembly (1) and is connected to the second sliding portion (12).

3. The lens rotation adjustment mechanism according to claim 2, characterized in that: A guide sliding surface (121) is provided on the guide sliding block or the guide sliding opening, which is suitable for fitting with the arc-shaped guide groove or the arc-shaped guide rail.

4. The lens rotation adjustment mechanism according to claim 2 or 3, characterized in that: The lens assembly (1) comprises a mounting frame and a lens barrel (11) connected to the mounting frame; The mounting frame has a gusset plate (14); The second sliding portion (12) is connected to the buckle plate (14).

5. The lens rotation adjustment mechanism according to claim 4, characterized in that: A guide surface (122) is provided on the outer side of the guide sliding block or the guide sliding opening, which is suitable for guiding the second sliding part (12) to be clamped into the first sliding part (22).

6. The lens rotation adjustment mechanism according to claim 5, characterized in that: The mounting frame includes a curved panel (13); The lens barrel (11) is connected to the arc panel (13); An arc guide surface (23) in contact with the arc panel (13) is provided in the installation groove (21), and both ends of the arc panel (13) are always located in the installation groove (21) during the rotation of the lens assembly (1).

7. The lens rotation adjustment mechanism according to claim 6, characterized in that: The arc panel (13) is provided with a mounting hole (131); A limiting groove (111) is provided on the outer wall of the lens barrel (11); It also includes a limiting member (3), and after the lens barrel (11) passes through the mounting hole (131), the limiting member (3) is snapped into the limiting groove (111), thereby limiting one end of the lens barrel (11) to the inner side of the arc panel (13).

8. The lens rotation adjustment mechanism according to claim 7, characterized in that: A mounting platform (16) is provided on the arc panel (13), and a clamping groove (161) is provided at one end of the mounting platform (16) and a fixing groove (162) is provided at the other end; It also includes a cover plate (15), one end of which is clamped into the clamping slot (161) and the other end of which is clamped into the fixing slot (162) or connected to the fixing slot (162) via a fastener, thereby fixing the lens barrel (11) between the cover plate (15) and the limiting member (3).

9. The lens rotation adjustment mechanism according to any one of claims 5 to 8, characterized in that: It also includes a stop block (17), wherein the stop block (17) is connected to the mounting frame; A stop portion (24) is provided in the installation groove (21) and is limitedly matched with the stop slide (17), so that the stop slide (17) is always located in the installation groove (21).

10. A projection device, characterized in that: comprising the lens rotation adjustment mechanism according to any one of claims 1 to 9; A bottom shell (4) cooperates with the surface shell (2) to form an installation space; A circuit board, loaded with circuit systems; And a lens group, a light source unit and a film are arranged in the lens barrel (11), and the light source unit is electrically connected to the circuit system.

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