Projection component

Abstract

The utility model discloses a projection component, comprising a pedestal comprising a spacing hole; the motor assembly is mounted on the base and comprises a motor shaft which is formed by extending upwards; the projection disc comprises a positioning part formed by extending downwards and a positioning hole formed in the positioning part, the positioning part downwards penetrates through the limiting hole to be buckled to the base, the projection disc comprises an upper disc and a lower disc which are matched with each other and a pattern piece located between the upper disc and the lower disc, the positioning part is formed on the lower disc, and the pattern piece is arranged on the positioning part. The motor shaft protrudes upwards and extends into the positioning hole, a movable gap exists between the motor shaft and the hole wall of the positioning hole, and the motor shaft drives the projection disc to rotate; the lamplight assembly is located below the projection disc; and the lens group is installed on the base, and light emitted by the lamplight assembly sequentially penetrates through the projection disc and the lens group to prevent the projection disc from deflecting up and down.

Description

[Technical field]

[0001] The utility model relates to the technical field of projection, in particular to a projection component which rotates smoothly. [Background technology]

[0002] An existing projection component includes a housing, a motor assembly mounted on the housing, an imaging disk fixed to the motor assembly, and a lens assembly located above the imaging disk. The housing includes a receiving space and a projection port connected to the receiving space from top to bottom, the motor assembly is received in the receiving space and includes a motor shaft extending upward, the imaging disk is fixed to the motor shaft, and the lens assembly is exposed upward from the projection port.

[0003] Since the imaging disk in the above structure is fixed to the motor shaft, the motor shaft has rotational tolerance and may shake left and right or up and down, causing the imaging disk to swing up and down or left and right, changing the original focal length, and causing the projected pattern to be blurred, which cannot meet usage requirements. [Contents of the utility model]

[0004] In view of the problems faced by the background technology, the utility model provides a projection component in which a motor shaft and an imaging disk are loosely matched to achieve a smooth driving of the imaging disk.

[0005] In order to achieve the above purpose, the utility model adopts the following technical means:

[0006] A projection component comprises: a base, comprising a limiting hole; a motor assembly, mounted on the base and comprising a motor shaft extending upward; a projection disc, comprising a positioning portion extending downward and a positioning hole formed on the positioning portion, the positioning portion passing downward through the limiting hole and snapping into the base, the projection disc comprising an upper disc and a lower disc cooperating with each other, and a pattern sheet located therebetween, the positioning portion being formed on the lower disc, the motor shaft protruding upward into the positioning hole, a movable gap being formed between the motor shaft and the hole wall of the positioning hole, the motor shaft driving the projection disc to rotate; a light assembly, located below the projection disc; a lens group, exposed upward at the projection port, the light emitted by the light assembly passing through the projection disc and the lens group in sequence.

[0007] Furthermore, the base includes a base body and a support base fixed above the base body, the limiting hole is formed in the base body, the base body includes a limiting portion surrounding the limiting hole and arranged toward the projection disk, the lens group is installed on the support base, the support base includes a limiting portion extending downward, and the limiting portion and the limiting portion jointly limit the up and down deflection of the projection disk.

[0008] Furthermore, the upper plate includes a main body and a positioning portion extending downward from the main body, the positioning portion passes downward through the lower plate, a portion of the positioning portion is connected to the main body, and another portion forms a clearance space with the main body.

[0009] Furthermore, a portion of the motor shaft contacts the hole wall of the positioning hole, and another portion forms a gap with the hole wall of the positioning hole.

[0010] Furthermore, the motor shaft includes a step portion, which is recessed downward from the top of the motor shaft. The positioning portion includes a stopper extending from the hole wall of the positioning hole. The stopper is located above the step portion, and there is a movable gap between the stopper and the step portion in the up and down directions.

[0011] Furthermore, the motor shaft includes two arc surfaces arranged opposite to each other and two vertical surfaces connecting the two arc surfaces, the step portion connects the vertical surfaces, a movable gap is formed between the hole wall of the positioning hole and the two arc surfaces, and the hole wall of the positioning hole is in at least partial contact with the two vertical surfaces.

[0012] Furthermore, the two step portions are located on the left and right sides of the motor shaft, and the two stoppers are located above the two step portions in a one-to-one correspondence.

[0013] Furthermore, the projection component also includes a lens group installed between the lighting assembly and the projection disk, the lens group includes two light-transmitting mirrors with different convex curvatures, defined as a first light-transmitting mirror and a second light-transmitting mirror, the distance between the lighting assembly and the first light-transmitting mirror is less than 1 times the focal length of the first light-transmitting mirror, and the second light-transmitting mirror is located above the first light-transmitting mirror.

[0014] Furthermore, the refraction angle of the light emitted by the lighting component after passing through the first light-transmitting mirror is less than 90°, and expands outward in a direction away from the axis of the lighting component, and the refraction angle of the refracted light after passing through the first light-transmitting mirror becomes smaller after passing through the second light-transmitting mirror.

[0015] Furthermore, the projection setting also includes a projection assembly, which includes a light source assembly, a projection film located above the light source assembly, and a projection lens located above the projection film, the projection lens includes a lens group and a dustproof part located above the lens group, the dustproof part includes a light blocking part arranged around the lens group, the dustproof part includes a light transmitting part and the light blocking part arranged around the light transmitting part, and the light blocking part can be a light blocking coating applied to the light transmitting part or a light blocking film.

[0016] Compared with the prior art, the projection component of the utility model has the following beneficial effects:

[0017] The base includes a limiting hole; the projection disk includes a positioning portion extending downward and a positioning hole formed in the positioning portion; the motor shaft of the motor assembly protrudes upward into the positioning hole, and there is a movable gap between the motor shaft and the hole wall of the positioning hole, and the motor shaft drives the projection disk to rotate; the lighting assembly is located below the projection disk; the lens group is exposed upward at the projection port of the housing, and the light emitted by the lighting assembly passes through the projection disk and the lens group in sequence. By setting the clearance between the motor shaft and the positioning hole, the rotation tolerance of the motor shaft is offset, so as to avoid the motor shaft causing the projection disk to swing left and right or up and down when rotating, thereby affecting the clarity of the projection.

Brief Description of the Drawings

[0018] Figure 1 A three-dimensional diagram of the projection component of the utility model;

[0019] Figure 2 for Figure 1 A three-dimensional diagram of the central base, imaging assembly, and projection assembly;

[0020] Figure 3 for Figure 2 The three-dimensional exploded view with the support base and lens assembly removed;

[0021] Figure 4 for Figure 2 3D exploded view of the center support and lens assembly;

[0022] Figure 5 for Figure 2 A top view of

[0023] Figure 6 for Figure 5 A partial enlarged view of a;

[0024] Figure 7 for Figure 5 A cross-sectional view taken along line BB;

[0025] Figure 8 for Figure 7 A partial enlarged view of middle c;

[0026] Fig. 9 for Figure 1 A three-dimensional exploded view of the middle shell and the sound cavity seat;

[0027] Fig.10 for Fig. 9 3D exploded view of the midrange cavity seat;

[0028] Fig.11 This is a three-dimensional exploded view of the frame and speaker 10.

[0029] Description of the accompanying drawings of the specific embodiments:

[0030]

[0031] [Specific implementation method]

[0032] In order to facilitate a better understanding of the purpose, structure, characteristics and functions of the present invention, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods.

[0033] like Figures 1 to 11 As shown, the projection component 100 of the present invention comprises a housing 1, a base 2 mounted on the housing 1, an imaging component 3, a projection component 4, a sound cavity seat 5 and a control panel.

[0034] like Figure 1 , Figure 2 and Fig. 9 As shown, the housing 1 includes a receiving cavity 13 and a first shell 11 and a second shell 12 constituting the receiving cavity 13, the receiving cavity 13 formed by the first shell 11 and the second shell 12, and an opening 14 connected to the receiving cavity 13 in the front-to-back direction. The first shell 11 includes a main projection groove 111 and an auxiliary projection groove 112 that penetrate through its upper and lower surfaces. The opening 14 is formed by extending in the horizontal direction. In this embodiment, the first shell 11 and the second shell 12 are fixed by screws. The housing 1 also includes a window 15 formed by the first shell 11 and the second shell 12, a guide groove 16 arranged around the window 15, and fixed columns 217 located on the left and right sides of the window 15. The first shell 11 and / or the second shell 12 are provided with a guide groove 16. The first shell 11 or the second shell 12 includes a block formed by extending from the groove wall of the guide groove 16. The auxiliary projection hole is defined as a projection port.

[0035] like Figure 1 , Figure 2 and Figure 3As shown, the base 2 includes an upper body 21 and a lower body 22 that are interlocked, a slot 23 formed by the upper body 21 and the lower body 22, and a support base 24 fixed to the upper body 21. In this embodiment, the upper body 21 and the lower body 22 are defined as a base. The upper body 21 includes a limiting hole 211 that passes through its upper and lower surfaces, a plurality of clamping arms 212 that constitute the limiting hole 211, a limiting portion 213 that is arranged around the limiting hole 211, a light-transmitting hole 214 that passes through upward, a light-transmitting hole 215, and a plurality of support columns 216. In this embodiment, three clamping arms 212 surround the limiting hole 211, and each clamping arm 212 is a free end. Each of the clamping arms 212 includes an elastic neck 2121 and a clamping portion 2122 extending from the neck 2121. Each of the clamping portions 2122 is an arc structure. Three of the clamping portions 2122 surround one of the limiting holes 211, and there is a gap between two adjacent clamping portions 2122. The light-transmitting hole 214 passes through the limiting portion 213 upward. The light-transmitting hole 215 is located at the rear side of the limiting hole 211. A plurality of support columns 216 are arranged around the light-transmitting hole 214. The connecting line of the plurality of support columns 216 is arranged in a roughly triangular shape. The lower seat body 22 includes an auxiliary plate 221, and the auxiliary plate 221 includes an arc-shaped stopper portion 2211 and a retaining hole. The slot 23 penetrates the base 2 outward in the horizontal direction, and the slot 23 is aligned with the opening 14 in the front-to-back direction. The support seat 24 is fixed to the plurality of support columns 216. The support seat 24 includes a base plate 241, a fixing portion 242 extending upward from the base plate 241, a limiting portion 243 located on the side of the base plate 241 away from the fixing portion 242, and a plurality of positioning columns 244 arranged around the fixing portion 242. The fixing portion 242 includes a mounting hole 2421 penetrating upward, and the mounting hole 2421 penetrates downward from the base plate 241. The mounting hole 2421 is arranged to be aligned with the light-transmitting hole 214 in the upper and lower directions. The limiting portion 243 is formed by protruding downward from the bottom surface of the base plate 241 and is arranged around the mounting hole 2421. In the present embodiment, the limiting portion 243 is a circular ring structure surrounding the mounting hole 2421. The plurality of positioning columns 244 are fixedly matched with the support columns 216 in a one-to-one correspondence.

[0036] like Figure 3 , Figure 5 , Figure 6 and Figure 8As shown, the imaging assembly 3 includes a light assembly 31, a motor assembly 32, a projection disk 33 fixed to the motor assembly 32, and a lens group 335 located on the projection disk 33. The light assembly 31 is fixed to the lower seat 22. The imaging assembly also includes a lens group installed between the light assembly 31 and the projection disk 33, and the lens group focuses the light of the light assembly so that the illuminated area of ​​the light assembly after passing through the lens group is greater than or equal to the imaging area of ​​the projection film, and less than or equal to 1.5 times the imaging area of ​​the projection film. In this embodiment, the lens group includes two light-transmitting mirrors with different convex curvatures, which are defined as a first light-transmitting mirror and a second light-transmitting mirror. The distance between the light assembly 31 and the first light-transmitting mirror is less than 1 times the focal length of the first light-transmitting mirror, and the second light-transmitting mirror is located above the first light-transmitting mirror. The lens group includes two light-transmitting mirrors with different convex curvatures, which are defined as a first light-transmitting mirror and a second light-transmitting mirror. The distance between the light assembly and the first light-transmitting mirror is less than 1 times the focal length of the first light-transmitting mirror, and the second light-transmitting mirror is located above the first light-transmitting mirror. The motor assembly 32 is fixed to the lower seat 22 and includes a motor shaft 321 that protrudes upward from the limiting hole 211. The width of the motor shaft 321 is smaller than the aperture of the limiting hole 211. The motor shaft 321 protrudes upward into the positioning hole 3312, and there is a movable gap between the motor shaft 321 and the hole wall of the positioning hole 3312. The motor shaft 321 of the motor assembly 32 does not abut the projection disk 33 upward. In this embodiment, the motor shaft 321 is exposed upward from the projection disk 33. The motor shaft 321 includes a step portion 3211 formed by being recessed downward from the top surface thereof, and two step portions 3211 are located at the left and right sides of the motor shaft 321. The motor shaft 321 also includes two arc surfaces 3212 arranged opposite to each other and two vertical surfaces 3213 connecting the two arc surfaces 3212, and the step portion 3211 connects the vertical surfaces 3213. The plurality of projection holes 334 are located directly above the limiting portion 213 or the distance between the limiting portion 213 and the motor shaft 321 of the motor assembly 32 is greater than or equal to the minimum distance between the projection holes 334 and the motor shaft 321 of the motor 32. It can also be said that the limiting portion 213 is located between 1 / 2R and R of the projection disk. The limiting portion 243 limits the upward displacement of the projection disk 33, and the limiting portion 213 limits the downward displacement of the projection disk 33 to ensure the focal length of the pattern sheet 333 and the lens group 335. The clearance between the limiting portion 213 and the projection disk 33 in the vertical direction is less than or equal to 0.1 mm and / or the clearance between the limiting portion 213 and the projection disk 33 in the vertical direction is less than or equal to 0.1 mm. The projection disk 33 is movably connected to the base 2. The limiting portion 213 is a circular ring structure surrounding the limiting hole 211.The projection plate 33 includes an upper plate 331, a lower plate 332, a pattern sheet 333 fixed between the upper plate 331 and the lower plate 332, and a plurality of projection holes 334 penetrating the upper plate 331 and the lower plate 332. The upper plate 331 includes a main body, a positioning portion 3311 extending downward from the main body, and a positioning hole 3312 formed inside the positioning portion 3311. A portion of the positioning portion 3311 is connected to the main body, and a clearance space 3315 is formed between the other portion and the main body, that is, the positioning portion 3311 is connected to the main body through a connecting portion 3314, and two connecting portions 3314 are located on the left and right sides of the positioning portion 3311, and each connecting portion 3314 is provided with a through-cutting groove 3315 on the left and right sides to reduce the influence of the positioning portion 3311 on the main body when rotating. The upper plate 331 also includes a plurality of stoppers 3313 extending from the hole wall of the positioning hole 3312, two of the stoppers 3313 are located on the left and right sides of the motor shaft 321, and the two stoppers 3313 are located one by one above the two step portions 3211, and there is a movable gap between the stoppers 3313 and the step portions 3211 in the up and down directions. The main body is formed along a horizontal extension, the positioning portion 3311 is approximately located in the middle of the main body, the positioning hole 3312 penetrates the main body upward, and a plurality of projection holes 334 are arranged around the positioning portion 3311, and the positioning portion 3311 includes a base connected to the main body and a hook horizontally protruding relative to the base. In this embodiment, the projection plate is provided with 8 projection holes 334. The positioning hole 3312 includes first walls parallel to each other and two arc-shaped portions connecting the two first walls. One part of the motor shaft 321 contacts the hole wall of the positioning hole 3312, and the other part forms a gap P with the hole wall of the positioning hole 3312, or there is a gap P between the contour of the motor shaft 321 and the hole wall of the positioning hole in the horizontal direction. In this embodiment, a movable gap is formed between the arc portion of the positioning hole 3312 and the two arc surfaces 3212, and the first wall of the positioning hole 3312 is at least partially in contact with the two vertical surfaces 3213. When the motor shaft 321 rotates, it drives the projection disk 33 to rotate. The upper plate 331 and the lower plate 332 are interlocked, and the lower plate 332 includes a through hole 3321 passing through the upper and lower surfaces thereof. The positioning portion 3311 passes through the through hole 3321 and protrudes downward into the limiting hole 211. The multiple clamping portions 2122 block the positioning portion 3311 from moving upward, that is, the through hole 3321 and the limiting hole 211 are arranged around the base, and the clamping portion 2122 blocks the hook from moving upward, that is, the hook is upwardly buckled with the multiple clamping portions 2122.There is a gap between the base and each of the clamping parts 2122 in the horizontal direction, that is, the width of the base in the horizontal direction is smaller than the aperture of the limiting hole 211. When the positioning part 3311 is inserted into the limiting hole 211, the plurality of clamping arms 212 are elastically deformed in the up-down direction. The pattern sheet 333 is exposed on the upper and lower sides of the plurality of projection holes 334, and different forms of meteor structures are arranged between the pattern sheets 333 exposed in at least two of the projection holes 334. The pattern sheet 333 can be a slide or a glass sheet. The pattern sheet 333 includes a light-transmissive meteor structure and a light-shielding part arranged around the meteor structure, wherein the number of meteor structures on the pattern sheets 333 exposed in at least two of the projection holes 334 is not equal and / or the size of the meteor structures is different and / or the color of the meteor structures is inconsistent. The pattern sheet 333 inside one of the projection holes 334 may include a plurality of meteor structures of different sizes and / or different colors. During one rotation of the projection disk 33, the lens group 335 forms meteors of inconsistent numbers and / or sizes and / or colors. The lens group 335 is fixed to the mounting hole 2421 and is exposed upward from the auxiliary projection slot 112. The control panel is electrically connected to the motor 32 and the light assembly 31. When the projection component 100 starts working, the control panel controls the light assembly 31 and the motor 32 to start working at the same time or the light assembly 31 randomly lights up during the operation of the motor 32, so that dynamic meteors can be projected when the meteor function is started. During one rotation of the projection disk 33, the light assembly 31 randomly lights up, and meteors of various forms can be randomly projected. For example, when the meteor switch key is pressed, the lens group 335 can project A dynamic single meteor, two meteors, a meteor shower or a half meteor is projected, or the light emitted by the lighting component 31 passes through the meteor structure, and dynamic meteors with inconsistent quantities and / or sizes and / or colors can be projected. During the start-up of the meteor function, the control panel controls the motor 32 to pause for an interval of 30 seconds, 60 seconds, 2 minutes or 5 minutes, etc., wherein the time for the motor 32 to rotate one circle is 5 seconds to 15 seconds, and the lighting time of the lighting component 31 is 1 second to 8 seconds, preferably 2 seconds.

[0037] like Figure 3 and Figure 4As shown, the projection assembly 4 includes a light source assembly 41, a tray 43, an imaging disc 44 mounted on the tray 43, a driving assembly 42 for driving the imaging disc 44 to rotate, and a projection lens 45 located above the imaging disc 44. The imaging disc 44 can be movably inserted and removed from the slot 23, and the tray 43 is exposed outwardly from the opening 14. The driving assembly 42 includes a gear, and the shifting portion 2211 limits the gear ring from shifting forward. The light source assembly 41 includes a lamp bead and a lens group located above the lamp bead, and the lens group at least partially protrudes upward into the holding hole to limit the left and right swing of the lens group. The projection lens 45 is exposed upward from the main projection slot 111. The projection lens 45 includes a lens group and a dustproof member 452 located above the lens group 451. The dustproof member 452 includes a light-blocking portion 4522 arranged around the lens group 4521. The dustproof member 452 includes a light-transmitting portion 4521 and a light-blocking portion 4522 arranged around the light-transmitting portion. The light-shielding portion 4522 is arranged around the lens group 451. The light-shielding portion 4522 can be a light-shielding coating applied to the light-transmitting portion 4522 or an independent light-shielding sheet. The imaging disc 44 includes a mounting slot and a projection sheet accommodated in the mounting slot. The projection sheet is provided with an anti-mistake portion to prevent the projection sheet from being mistakenly installed in the mounting slot. In this embodiment, the anti-mistake portion is a missing angle structure. The control board is electrically connected to the light source assembly 41 and the driving assembly 42. The light source assembly 41 can work alone or simultaneously with the lighting assembly 31. The light emitted by the light source assembly 41 passes through the imaging disk 44 and the projection lens 45 in sequence to form a starry sky pattern, which can be rotating or static. The light emitted by the lighting assembly 31 passes through the meteor structure to form a dynamic meteor effect that slides across a static or dynamic starry sky pattern.

[0038] like Fig. 9 , Fig.10 as well as Fig.11As shown, the sound cavity seat 5 is accommodated in the accommodating cavity 13. The sound cavity seat 5 includes a cavity 51, a frame 52 and a cover 53 constituting the cavity 51, a speaker 54 protruding into the cavity 51, and a speaker cover 56 installed corresponding to the speaker 54. The frame 52 includes a through groove 521 running through its surface, a positioning groove 522 arranged around the through groove 521, a limiting groove 523 running through its upper and lower surfaces, and a locking portion 524 arranged around the limiting groove 523. The through groove 521 is arranged in communication with the cavity 51, and the positioning groove 522 is formed from the side of the frame 52 toward the cavity 51. The two limiting grooves 523 are located on the left and right sides of the frame 52, each of the fixing columns 217 passes through one of the limiting grooves 523 upward, and the two locking portions 524 are fixed to the housing by screws. The cover 53 includes a through hole 531 arranged in communication with the cavity 51. The speaker 54 is installed in the through slot 521. The speaker 54 includes a speaker basin 541, a soft rubber ring 542 arranged around the speaker basin 541, a speaker membrane 543 attached to the speaker basin 541, and a soft rubber pad 544 sealed and connected to the speaker basin 541 and the speaker membrane 543. The speaker basin 541 includes a speaker body 54 and a holding portion protruding relative to the speaker body 54. The speaker body 54 protrudes into the cavity 51, and the holding portion is clamped on the outer side of the through slot 521. The soft rubber ring 542 is accommodated in the positioning groove 522 and is sealed to connect the frame 52 and the holding portion. The frame 52 and the holding portion are sealed to connect. The holding portion, the soft rubber pad 544 and the soft rubber ring 542 are aligned in the left-right direction. The holding portion, the soft rubber pad 544 and the soft rubber ring 542 are aligned in the left-right direction. The retaining portion and the soft rubber ring 542 are fixed to the frame 52 by fasteners. The speaker membrane 543 is arranged toward the speaker cover 56. The diaphragm 55 is installed on the through hole 531, and the diaphragm 55 and the speaker membrane 543 are staggered in the front-to-back direction. The speaker cover 56 includes a first portion 561 and a second portion protruding relative to the first portion 561, a plurality of speaker holes 562 are provided in the first portion 561, and the second portion is installed on the first shell 11 along the guide groove 16. The second portion includes a positioning groove, and the blocking block protrudes into the positioning groove, and the speaker cover 56 abuts against the soft rubber pad 544 along the direction of the cover body 53. A plurality of speaker holes 562 are arranged to cover the speaker membrane 543.

[0039] In summary, the projection component of the utility model has the following beneficial effects:

[0040] (1) The base 2 includes a limiting hole 211; the motor assembly 32 is installed on the housing 1 and includes a motor shaft 321 extending upward; the projection disk 33 includes a positioning portion 3311 extending downward and a positioning hole 3312 formed in the positioning portion 3311, the positioning portion 3311 passes downward through the limiting hole 211 and is engaged with the base 2; the motor shaft 321 protrudes upward into the positioning hole 3312, and there is a movable gap between the motor shaft 321 and the hole wall of the positioning hole 3312, and the motor shaft 321 drives the projection disk 33 to rotate; the light assembly 31 is located below the projection disk 33; the lens group 335 is upwardly exposed to the projection port 112 of the housing 1, and the light emitted by the light assembly 31 passes through the projection disk 33 and the lens group 335 in sequence. By setting a clearance fit between the motor shaft 321 and the positioning hole 3312, the rotation tolerance of the motor shaft 321 is offset to prevent the projection disk 33 from swinging left and right or up and down when the motor shaft 321 rotates, thereby affecting the clarity of the projection.

[0041] The above detailed description is only an explanation of the preferred embodiment of the utility model, and does not limit the patent scope of the utility model. Therefore, all equivalent technical changes made by using the description and illustrations of this creation are included in the patent scope of this creation.

Claims

1. A projection component, characterized in that: include: The base includes a limiting hole; A motor assembly is mounted on the base and includes a motor shaft extending upward; The projection disk includes a positioning portion extending downward and a positioning hole formed in the positioning portion, the positioning portion passes downward through the limiting hole and is buckled with the base, the projection disk includes an upper disk and a lower disk that cooperate with each other, and a pattern sheet located therebetween, the positioning portion is formed on the lower disk, the motor shaft protrudes upward into the positioning hole, there is an active gap between the motor shaft and the hole wall of the positioning hole, and the motor shaft drives the projection disk to rotate; A lighting assembly, located below the projection disk; The lens group is installed on the support seat of the base, and the light emitted by the lighting assembly passes through the projection disk and the lens group in sequence.

2. The projection component according to claim 1, characterized in that: The base includes a base body and a support base fixed above the base body, the limiting hole is formed in the base body, the base body includes a limiting portion surrounding the limiting hole and arranged toward the projection disk, the lens group is installed on the support base, the support base includes a limiting portion extending downward, and the limiting portion and the limiting portion jointly limit the up and down deflection of the projection disk.

3. The projection component according to claim 1, characterized in that: The upper plate includes a main body and a positioning portion extending downward from the main body, the positioning portion passes downward through the lower plate, a portion of the positioning portion is connected to the main body, and a clearance space is formed between the other portion and the main body.

4. The projection component according to any one of claims 1 to 3, characterized in that: A portion of the motor shaft contacts the hole wall of the positioning hole, and another portion forms a gap with the hole wall of the positioning hole.

5. The projection component according to claim 4, characterized in that: The motor shaft includes a step portion, which is recessed downward from the top of the motor shaft. The positioning portion includes a stopper extending from the hole wall of the positioning hole. The stopper is located above the step portion, and there is a movable gap between the stopper and the step portion in the up and down directions.

6. The projection component according to claim 5, characterized in that: The motor shaft includes two arc surfaces arranged opposite to each other and two vertical surfaces connecting the two arc surfaces, the step portion connects the vertical surfaces, a movable gap is formed between the hole wall of the positioning hole and the two arc surfaces, and the hole wall of the positioning hole is in at least partial contact with the two vertical surfaces.

7. The projection component according to claim 6, characterized in that: The two step portions are located on the left and right sides of the motor shaft, and the two stoppers are located above the two step portions in a one-to-one correspondence.

8. The projection component according to any one of claims 1 to 3, characterized in that: The projection component also includes a lens group installed between the light assembly and the projection disk, the lens group includes two light-transmitting mirrors with different convex curvatures, defined as a first light-transmitting mirror and a second light-transmitting mirror, the distance between the light assembly and the first light-transmitting mirror is less than 1 times the focal length of the first light-transmitting mirror, and the second light-transmitting mirror is located above the first light-transmitting mirror.

9. The projection component according to claim 8, characterized in that: The refraction angle of the light emitted by the lighting component after passing through the first light-transmitting mirror is less than 90°, and expands outward in a direction away from the axis of the lighting component. The refraction angle of the refracted light after passing through the first light-transmitting mirror becomes smaller after passing through the second light-transmitting mirror.

10. The projection component according to any one of claims 1 to 3, characterized in that: The projection setting also includes a projection assembly, which includes a light source assembly, a projection film located above the light source assembly, and a projection lens located above the projection film. The projection lens includes a lens group and a dustproof member located above the lens group. The dustproof member includes a light blocking portion arranged around the lens group. The dustproof member includes a light transmitting portion and the light blocking portion arranged around the light transmitting portion. The light blocking portion may be a light-shielding coating applied to the light transmitting portion or a light-shielding film.

Images