Projector lens adjusting structure

Abstract

The utility model aims to disclose a projector lens adjusting structure, which relates to the technical field of ceiling lamps and comprises an upper cover, a lower cover, a projector component, a fixing plate and a lifting component. A motor, a first gear and a second gear are arranged on the fixing plate, the first gear is meshed with the second gear, and a lead screw is arranged in the middle of the second gear; a first L-shaped plate and a second L-shaped plate are fixedly arranged at the bottom of the projector assembly, the first L-shaped plate is provided with a first chute, and the second L-shaped plate is provided with a second chute; a first circular rod and a second circular rod are arranged on the two sides of the top of the lead screw respectively, the first circular rod is matched with the first inclined groove, and the second circular rod is matched with the second inclined groove. The lead screw ascends and descends to drive the first round rod and the second round rod to slide along the first inclined groove and the second inclined groove respectively, so that the working angle of the projector assembly is directly pushed to be adjusted, the working angle adjusting range is large, and flexibility is high.

Description

Technical Field

[0001] The utility model relates to the technical field of ceiling lamps, in particular to a projector lens adjustment structure. Background Art

[0002] A projection ceiling lamp is formed by installing a small projector in a ceiling lamp, which can enrich the purpose and use effect of the ceiling lamp. At present, due to the heavy projector component and limited space in the ceiling lamp, it requires greater torque to drive the shaft directly to rotate the drive motor, and the adjustment angle of the projector is limited.

[0003] In view of this, it is necessary to develop a new projector lens adjustment structure to overcome the above defects. Summary of the invention

[0004] The utility model aims to disclose a projector lens adjustment structure, which converts the linear motion of a screw rod into the rotation of a projector component, requires a small torque and has a larger rotation angle.

[0005] In order to achieve the above-mentioned invention object, the utility model provides a projector lens adjustment structure, including an upper cover, a lower cover, a projector assembly, a fixing plate and a lifting assembly;

[0006] A motor, a first gear and a second gear are arranged on the fixing plate, the first gear is meshed with the second gear, and a screw rod is arranged in the middle of the second gear;

[0007] A first L-shaped plate and a second L-shaped plate are fixedly arranged at the bottom of the projector assembly, the first L-shaped plate is provided with a first oblique groove, and the second L-shaped plate is provided with a second oblique groove;

[0008] A first round rod and a second round rod are respectively arranged on both sides of the top of the screw rod, the first round rod is matched with the first inclined groove, and the second round rod is matched with the second inclined groove.

[0009] Preferably, fixing pins are respectively provided at the four vertex corners of the fixing plate, and the motor is provided between the four fixing pins.

[0010] Preferably, a cover is provided on the top of the fixing plate, the cover covers the first gear and the second gear, and the screw rod passes through the cover.

[0011] Preferably, the angle between the first inclined groove and the horizontal plane is 18°-26°.

[0012] Preferably, a lens hole is provided in the lower cover, and a lens of the projector assembly is installed in the lens hole.

[0013] Preferably, a first heat dissipation housing and a second heat dissipation housing are respectively provided on both sides of the projector assembly, a first L-shaped fixing piece is installed on the first heat dissipation housing, and a second L-shaped fixing piece is installed on the second heat dissipation housing;

[0014] One end of the first L-shaped fixing member is fixed to the lower cover, and the other end of the first L-shaped fixing member is rotatably connected to the first heat dissipation housing;

[0015] One end of the second L-shaped fixing piece is fixed to the lower cover, and the other end of the second L-shaped fixing piece is rotatably connected to the second heat dissipation shell.

[0016] Preferably, a silicone sleeve is provided between the lens and the lens hole.

[0017] Preferably, disc teeth and a driving motor are arranged on the outer side of the lens.

[0018] Preferably, a travel switch is arranged at the bottom end of the projector assembly close to the lens.

[0019] Preferably, the projector assembly is installed at an angle.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] Start the motor, and drive the lead screw to rise and fall through the transmission of the first gear and the second gear. The lifting of the lead screw drives the first round rod and the second round rod to slide along the first inclined groove and the second inclined groove respectively, thereby directly promoting the working angle adjustment of the projector assembly. The working angle adjustment range is 18-26°. The adjustment range is large and the lifting assembly is arranged at the bottom of the inclined projector assembly, without occupying additional space, and the space utilization rate is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural diagram of the projector lens adjustment structure of the utility model.

[0023] Figure 2 It is a partially enlarged schematic diagram of the lens adjustment structure of the projector of the utility model.

[0024] Figure 3 The utility model is a cross-sectional schematic diagram of the projector lens adjustment structure.

[0025] Figure 4 It is a three-dimensional structural diagram of the projector lens adjustment structure of the utility model.

[0026] Figure 5 It is a top view schematic diagram of the projector lens adjustment structure of the utility model.

[0027] Figure 6 For this utility model Figure 3 A is an enlarged schematic diagram of the structure.

[0028] Among them, 1. upper cover; 2. lower cover; 21. lens hole; 22. silicone sleeve; 3. projector assembly; 31. first L-shaped plate; 311. first inclined groove; 32. second L-shaped plate; 33. lens; 331. disc teeth; 332. drive motor; 34. first heat dissipation shell; 35. second heat dissipation shell; 4. fixing plate; 41. fixing pin; 42. cover body; 5. fixing plate; 51. motor; 52. first gear; 53. second gear; 54. screw; 541. first round rod; 6. first L-shaped fixing piece; 7. second L-shaped fixing piece; 8. travel switch. DETAILED DESCRIPTION

[0029] The present invention is described in detail below in conjunction with the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods, or structures made by ordinary technicians in the field based on these embodiments are all within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0031] The specific implementation process of the present utility model is described below through multiple embodiments.

[0032] Example 1

[0033] See also Figures 1 to 6 , this embodiment discloses a specific implementation of a projector lens adjustment structure.

[0034] See also Figures 1 to 6The projector lens adjustment structure includes an upper cover 1, a lower cover 2, a projector assembly 3, a fixing plate 4 and a lifting assembly 5. The upper cover 1 and the lower cover 2 form a space for accommodating the projector assembly 3. The projector assembly 3 is installed tilted. The four vertex corners of the fixing plate 4 are respectively provided with fixing pins 41, and the fixing pins 41 are installed on the lower cover 2. The motor is arranged between the four fixing pins, so that the installation space of the fixing plate 4 is fully utilized and the design is compact. The fixing plate 4 is provided with a motor 51, a first gear 52 and a second gear 53, the first gear 52 meshes with the second gear 53, the first gear 52 is a driving gear, the second gear 53 is a passive gear, a screw rod 54 is arranged in the middle of the second gear 53, and the motor 51 , a first gear 52, a second gear 53 and a screw rod 54 form a lifting assembly 5, a cover body 42 is arranged on the top of the fixed plate 4, the cover body 42 covers the first gear 52 and the second gear 53, and the screw rod 54 passes through the cover body 42; a first L-shaped plate 31 and a second L-shaped plate 32 are fixedly arranged on the bottom of the projector assembly 3, the first L-shaped plate 31 is provided with a first inclined groove 311, and the second L-shaped plate 32 is provided with a second inclined groove; a first round rod 541 and a second round rod are respectively arranged on both sides of the top of the screw rod 54, the first round rod 541 cooperates with the first inclined groove 311, and the second round rod cooperates with the second inclined groove, and the second round rod and the second inclined groove are blocked by the first L-shaped plate 31 and are not shown.

[0035] Specifically, the projector assembly 3 is installed at an angle, a lens hole 21 is opened in the lower cover 2, a lens 33 of the projector assembly 3 is installed in the lens hole 21, and a silicone sleeve 22 is arranged between the lens 33 and the lens hole 21; a first heat dissipation shell 34 and a second heat dissipation shell 35 are respectively arranged on both sides of the projector assembly 3, the first heat dissipation shell 34 and the second heat dissipation shell 35 are helpful for heat dissipation of the projector assembly 3, and using the first heat dissipation shell 34 and the second heat dissipation shell 35 as the rotation center is helpful for realizing a compact design, the first heat dissipation shell 34 is installed with a first L-shaped fixing piece 6, and the second heat dissipation shell 35 is installed with a second L-shaped fixing piece 7; one end of the first L-shaped fixing piece 6 is fixed to the lower cover 2, and the other end of the first L-shaped fixing piece 6 is rotatably connected to the first heat dissipation shell 34; one end of the second L-shaped fixing piece 7 is fixed to the lower cover 2, and the other end of the second L-shaped fixing piece 7 is rotatably connected to the second heat dissipation shell 35; when adjusting the projection angle of the projector assembly 3, the motor 51 is rotated forward and reversely to drive the screw rod 54 to rise and fall, and the screw rod 54 is driven The first round rod 541 and the second round rod on both sides of the top thereof are driven to rise and fall. Since the first round rod 541 slides along the first inclined groove 311, and the second round rod slides along the second inclined groove, and in view of the first heat dissipation shell 34 and the second heat dissipation shell 35 on both sides of the projector assembly 3 are respectively rotatably connected to the first L-shaped fixing member 6 and the second L-shaped fixing member 7, the first heat dissipation shell 34 and the first L-shaped fixing member 6 are connected through the first rotating shaft, and the second heat dissipation shell 35 and the second L-shaped fixing member 7 are connected through the second rotating shaft, the lifting and lowering of the screw rod 54 is converted into the swing of the projector assembly 3 with the first rotating shaft and the second rotating shaft as the center, thereby driving the lens 33 to swing. When the lens 33 swings, the deformation of the silicone sleeve 22 is overcome to achieve a large-angle swing; it can be seen that through this embodiment, the linear lifting and lowering motion of the screw rod 54 is converted into driving the projector assembly 3 to swing with the first rotating shaft and the second rotating shaft as the center, thereby driving the lens 33 to swing, and achieving a large-angle swing under low torque conditions. At the same time, the projector assembly 3 is installed tilted, and the lifting assembly 5 is arranged at the bottom of the tilted projector assembly 3, without occupying additional space, and the space utilization rate is high.

[0036] See also Figure 6, the angle between the first inclined groove and the horizontal plane is 18°-26°, the motor 51 drives the first round rod 541 to slide to different positions of the first inclined groove 311 through the screw rod 54 according to the preset number of rotations, when the first round rod 541 is at the lowest position, the angle between the lens 33 and the horizontal plane is the smallest, and the angle between the first inclined groove 311 and the horizontal plane is 18°; when the first round rod 541 is at the highest position, the angle between the lens 33 and the horizontal plane is the largest, and the angle between the first inclined groove 311 and the horizontal plane is 26°; by sliding the first round rod 541 between the lowest position and the highest position of the first inclined groove 311, the swing range of the lens 33 is 18°-26°, the swing angle range reaches 8°, and the swing range is increased; a travel switch 8 is set at the bottom end of the projector assembly 4 close to the lens 33, and the travel switch is used to control the swing range of the lens 33.

[0037] See also Figure 3 and Figure 4 A disc tooth 331 and a driving motor 332 are disposed on the outer side of the lens 33. The driving motor 332 engages with the disc tooth 331 through a gear. The rotation of the driving motor 332 drives the disc tooth 331 to rotate, thereby driving the lens 33 to rotate along its axis to achieve focusing.

Claims

1. A projector lens adjustment structure, characterized in that: It includes an upper cover, a lower cover, a projector assembly, a fixing plate and a lifting assembly; A motor, a first gear and a second gear are arranged on the fixing plate, the first gear is meshed with the second gear, and a screw rod is arranged in the middle of the second gear; A first L-shaped plate and a second L-shaped plate are fixedly arranged at the bottom of the projector assembly, the first L-shaped plate is provided with a first oblique groove, and the second L-shaped plate is provided with a second oblique groove; A first round rod and a second round rod are respectively arranged on both sides of the top of the screw rod, the first round rod is matched with the first inclined groove, and the second round rod is matched with the second inclined groove.

2. The projector lens adjustment structure according to claim 1, characterized in that: The four vertices of the fixing plate are respectively provided with fixing pins, and the motor is arranged between the four fixing pins.

3. The projector lens adjustment structure according to claim 2, characterized in that: A cover is provided on the top of the fixing plate, the cover covers the first gear and the second gear, and the screw rod passes through the cover.

4. The projector lens adjustment structure according to any one of claims 1 to 3, characterized in that: The angle between the first inclined groove and the horizontal plane is 18°-26°.

5. The projector lens adjustment structure according to claim 4, characterized in that: A lens hole is provided in the lower cover, and a lens of the projector assembly is installed in the lens hole.

6. The projector lens adjustment structure according to claim 5, characterized in that: A first heat dissipation housing and a second heat dissipation housing are respectively provided on both sides of the projector assembly, a first L-shaped fixing piece is installed on the first heat dissipation housing, and a second L-shaped fixing piece is installed on the second heat dissipation housing; One end of the first L-shaped fixing member is fixed to the lower cover, and the other end of the first L-shaped fixing member is rotatably connected to the first heat dissipation housing; One end of the second L-shaped fixing piece is fixed to the lower cover, and the other end of the second L-shaped fixing piece is rotatably connected to the second heat dissipation shell.

7. The projector lens adjustment structure according to claim 5 or 6, characterized in that: A silicone sleeve is arranged between the lens and the lens hole.

8. The projector lens adjustment structure according to claim 7, characterized in that: Disc teeth and a driving motor are arranged on the outer side of the lens.

9. The projector lens adjustment structure according to claim 7, characterized in that: A travel switch is arranged at the bottom end of the projector assembly close to the lens.

10. The projector lens adjustment structure according to claim 7, wherein: The projector assembly is installed at an angle.

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