Laser projection equipment
Patent Information
- Application Number
- CN202110496051.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-05-07
- Publication Date
- 2026-09-01
- Estimated Expiration
- 2041-05-07
Smart Images
Figure CN115308980B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of projection technology, and in particular to a laser projection device. Background Technology
[0002] With the continuous development of technology, laser projection equipment is increasingly being used in people's work and daily life. Currently, laser projection equipment mainly consists of a housing, a laser projector, and a projection screen. The housing has a light-transmitting area and a sliding cover that can switch between blocking and avoiding the light-transmitting area. The laser projector is located inside the housing. The laser beam emitted by the laser projector passes through the light-transmitting area to the projection screen, which receives the beam to display the image.
[0003] In related technologies, a first driving mechanism is fixed inside the housing and connected to the sliding cover. Thus, when it is necessary to block the light-transmitting area, the first driving mechanism drives the sliding cover to move below the light-transmitting area to block it; or the first driving mechanism drives the sliding cover to move inside the housing to avoid the light-transmitting area. Summary of the Invention
[0004] This application provides a laser projection device that simplifies the structure of the driving components included in the laser projection device. The technical solution is as follows: A laser projection device, the laser projection device comprising: Storage section, wherein the storage section has a light-transmitting area; The laser projection host is located inside the storage unit, and the light beam emitted by the laser projection host can pass through the light-transmitting area; The first driving structure includes a plurality of guide rods and a first tray assembly. The plurality of guide rods are fixed inside the storage part. The first tray assembly is slidably sleeved on the plurality of guide rods. The first guide rod among the plurality of guide rods limits the first tray assembly radially, and the second guide rod among the plurality of guide rods limits the first tray assembly circumferentially. A sliding cover, which is connected to the first tray assembly, and is capable of switching between blocking the light-transmitting area and being housed within the storage section.
[0005] The beneficial effects of the technical solutions provided in this application include at least the following: In this embodiment, when the first guide rod and the second guide rod among the multiple guide rods limit the first pallet assembly, the second guide rod only needs to limit the first pallet assembly in the circumferential direction. That is, the second guide rod has a movable gap in the direction close to or far from the first guide rod, thereby reducing the number of limiting directions of the second guide rod on the first pallet assembly, avoiding the phenomenon of over-positioning of the first pallet assembly, and reducing the parallelism requirement of the first guide rod and the second guide rod. Attached Figure Description
[0006] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0007] Figure 1 This is a cross-sectional structural diagram of a laser projection device in the off state provided in an embodiment of this application; Figure 2 This is a cross-sectional structural diagram of a laser projection device in use, provided in an embodiment of this application. Figure 3 This is a side view cross-sectional structural diagram of a laser projection device provided in an embodiment of this application; Figure 4 This is a side view of the mounting structure of a first drive mechanism provided in an embodiment of this application; Figure 5 This is a cross-sectional structural diagram of another laser projection device in use, provided in an embodiment of this application; Figure 6 This is a cross-sectional structural diagram of another laser projection device in use, provided in an embodiment of this application; Figure 7 This is a cross-sectional structural diagram of another laser projection device in use provided in the embodiments of this application; Figure 8 This is a cross-sectional structural diagram of another laser projection device in the off state provided in the embodiments of this application; Figure 9 This is a cross-sectional structural diagram of another laser projection device in the off state provided in the embodiments of this application; Figure 10 This is a cross-sectional structural diagram of another laser projection device in the off state provided in the embodiments of this application; Figure 11 This is a cross-sectional structural diagram of another laser projection device in the off state provided in the embodiments of this application; Figure 12This is a front view structural diagram of a laser projection device in use, provided in an embodiment of this application. Figure 13 This is a schematic diagram of the internal front view of a laser projection device provided in an embodiment of this application; Figure 14 This is a schematic diagram of the front view structure of a laser projection device in the off state provided in an embodiment of this application; Figure 15 This is a schematic diagram of the internal main view structure of another laser projection device provided in an embodiment of this application; Figure 16 This is a schematic diagram of the frame structure of a storage section provided in an embodiment of this application.
[0008] Figure label: 1: Storage compartment; 2: Laser projector main unit; 3: Projection screen; 4: First drive mechanism; 5: Sliding cover; 6: Second drive mechanism; 7: Cover plate; 8: Audio equipment; 11: First receiving part; 12: Second receiving part; 13: Main housing; 14: Intermediate partition; 111: Light-transmitting area; 112: First blocking element; 113: Second blocking element; 114: Third blocking element; 115: Fourth blocking element; 116: First partition plate; 117: Second partition plate; 118: Shelf plate; 119: Reinforcing rib; 121: Opening; 31: Screen panel; 32: Roll-up assembly; 33: Lifting assembly; 401: Guide rod; 402: First pallet assembly; 403: First drive assembly; 404: First rotary lifting assembly; 405: Second pallet assembly; 406: Second drive assembly; 407: Second rotary lifting assembly; 408: First connecting plate; 409: First limiting member; 410: Second limiting member; 411: Third limiting member; 412: Fourth limiting member; 413: First adjusting assembly; 414: Second adjusting assembly; 415: Third adjusting assembly; 416: Fourth adjusting assembly; 4011: First guide rod; 4012: Second guide rod; 4021: First support plate; 4022: First sliding sleeve; 4023: Second sliding sleeve; 4031: Drive motor; 4032: Conveyor assembly; 40321: First pulley; 40322: Second pulley; 40323: Conveyor belt; 4041: First rotating lifting component; 4042: Protrusion; 51: First sub-slider; 52: Second sub-slider. Detailed Implementation
[0009] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.
[0010] Figure 1 This application provides a schematic diagram illustrating the structure of a laser projection device in its off-state, according to an embodiment of the present application. Figure 2 A schematic diagram illustrating the usage state of a laser projection device according to an embodiment of this application is shown. Figure 1 and Figure 2 As shown, the laser projection device includes a storage section 1 with a light-transmitting area 111; and a laser projection host 2 located inside the storage section 1, wherein the light beam emitted by the laser projection host 2 can pass through the light-transmitting area 111.
[0011] In the embodiments of this application, such as Figure 1 or Figure 2 As shown, the laser projection device also includes a first drive mechanism 4 and a sliding cover 5. The first drive mechanism 4 is fixed inside the storage part 1 and connected to the sliding cover 5. The first drive mechanism 4 is used to drive the sliding cover 5 to switch between blocking the light-transmitting area 111 and being housed inside the storage part 1.
[0012] In this way, when the laser projection device is not in use, the sliding cover 5 is moved to the position of the light-transmitting area 111 by the first drive mechanism 4, thereby blocking the area where the light-transmitting area 111 is located, thus protecting the laser projection host 2 and preventing dirt from entering the storage part 1 from the light-transmitting area 111. When the laser projection device is in use, the sliding cover 5 is moved into the storage part 1 by the first drive mechanism 4, thereby accommodating the sliding cover 5 and ensuring that the beam emitted by the laser projection host 2 can pass through the light-transmitting area 111.
[0013] When the sliding cover 5 blocks the area where the light-transmitting area 111 is located, the sliding cover 5 is located directly below the light-transmitting area 111, or the sliding cover 5 overlaps with the area where the light-transmitting area 111 is located. When the sliding cover 5 is housed in the storage part 1, there is no overlap between the projection of the sliding cover 5 on the plane where the light-transmitting area 111 is located and the light-transmitting area 111. Of course, there may be partial overlap between the projection of the sliding cover 5 on the plane where the light-transmitting area 111 is located and the light-transmitting area 111, as long as it does not affect the light beam emitted by the laser projection host 2 from passing through the light-transmitting area 111.
[0014] In the embodiments of this application, such as Figure 1 and Figure 3As shown, the first driving mechanism 4 includes multiple guide rods 401 and a first tray assembly 402; the multiple guide rods 401 are fixed inside the storage part 1; the first tray assembly 402 is slidably sleeved on the multiple guide rods 401, the first guide rod 4011 of the multiple guide rods 401 radially limits the first tray assembly 402, and the second guide rod 4012 of the multiple guide rods 401 circumferentially limits the first tray assembly 402; the sliding cover 5 is connected to the first tray assembly 402. In this way, under the action of external force, the first tray assembly 402 can be slid along the first guide rod 4011, and then the sliding cover 5 can be moved through the first tray assembly 402 to realize the switching of the sliding cover 5 between the light-blocking area 111 and the storage part 1.
[0015] When the first guide rod 4011 and the second guide rod 4012 limit the first pallet assembly 402, the second guide rod 4012 only needs to limit the first pallet assembly 402 along the circumferential direction of the first guide rod 4011. That is, the second guide rod 4012 has a movable gap in the direction close to or away from the first guide rod 4011, thereby reducing the number of limiting directions of the second guide rod 4012 on the first pallet assembly 402, avoiding the phenomenon of over-positioning of the first pallet assembly 402, and reducing the parallelism requirement of the first guide rod 4011 and the second guide rod 4012.
[0016] Here, both radial and circumferential directions refer to directions relative to the same guide rod 401. For example, radial direction refers to the radial direction of the first guide rod 4011, and circumferential direction refers to the circumferential direction of the first guide rod 4011. The sliding cover 5 is located above the first tray assembly 402, thereby preventing the first tray assembly 402 from being exposed when the sliding cover 5 blocks the light-transmitting area 111.
[0017] In this embodiment of the application, in order to realize the sliding of the first pallet assembly 402 along the first guide rod 4011, the first pallet assembly 402 can be pushed manually to slide, or the first pallet assembly 402 can be pushed electrically to slide.
[0018] When manually pushed, the first pallet assembly 402 has a push rod, and the side wall of the receiving part 1 has a guide groove. The length direction of the guide groove is parallel to the length direction of the first guide rod 4011, and the end of the push rod extends into the guide groove. In this way, a force can be applied to the push rod to make it slide along the guide groove, thereby realizing the sliding of the first pallet assembly 402 along the first guide rod 4011.
[0019] When electric propulsion is achieved, such as Figure 4As shown, the first driving mechanism 4 also includes a first driving component 403, which is fixed inside the storage part 1 and connected to the first tray assembly 402. The first driving component 403 is used to drive the first tray assembly 402 to slide along the first guide rod 4011. In this way, the first tray assembly 402 can be driven to slide along the first guide rod 4011 under the driving action of the first driving component 403.
[0020] The laser projection device also includes a controller, which is electrically connected to the first drive component 403. When the controller receives a control signal, it can send a control command to the first drive component 403 to drive the first tray component 402 to slide.
[0021] In this embodiment of the application, when the light-transmitting area 111 is blocked by the sliding cover 5, in order to ensure the blocking effect of the sliding cover 5, such as Figure 5 As shown, the first driving mechanism 4 also includes a first rotating and lifting assembly 404. The sliding cover 5 and the first tray assembly 402 are both rotatably connected to the first rotating and lifting assembly 404. When the first tray assembly 402 slides, it can drive the first rotating and lifting assembly 404 to rotate, thereby driving the sliding cover 5 to rise and fall. Thus, when the first tray assembly 402 moves the sliding cover 5 to directly below the light-transmitting area 111, the sliding cover 5 can be driven to rise to a height flush with the outer surface of the storage section 1 by the first rotating and lifting assembly 404 as the first tray assembly 402 continues to slide. This ensures the blocking effect of the sliding cover 5 on the light-transmitting area 111 while maintaining the aesthetics of the storage section 1. In other words, the two-dimensional movement of the sliding cover 5 can be achieved through the one-dimensional movement of the first tray assembly 402, thereby simplifying the structure of the first driving mechanism.
[0022] In conjunction with the first pallet assembly 402, the first drive assembly 403, and the first rotary lifting assembly 404 described above, in actual implementation, the first drive assembly 403 drives the first pallet assembly 402 to slide along the first guide rod 4011, thereby causing the first rotary lifting assembly 404 and the sliding cover 5 to move synchronously. When the sliding cover 5 has moved and is positioned directly below the light-transmitting area 111, the first pallet assembly 402 continues to slide to drive the first rotary lifting assembly 404 to rotate while the sliding cover 5 remains stationary in the horizontal direction. At this time, the first rotary lifting assembly 404 lifts the sliding cover. The first drive assembly 403 drives the first support plate assembly 402 to slide in the opposite direction along the first guide rod 4011, so that the first rotating lifting assembly 404 rotates when the light-transmitting area 111 limits the sliding cover 5. At this time, the first rotating lifting assembly 404 drives the sliding cover 5 to descend directly below the light-transmitting area 111. Then the first support plate assembly 402 continues to slide, so that the first rotating lifting assembly 404 and the sliding cover 5 move synchronously into the storage part 1, thereby realizing the folding of the sliding cover 5.
[0023] The components of the first drive mechanism 4 will be explained next.
[0024] In some embodiments, the guide rod 401 has a circular cross-section, which reduces the frictional resistance between the first pallet assembly 402 and the guide rod 401 when the first pallet assembly 402 slides. Of course, the cross-section of the guide rod 401 can also be other shapes; for example, the cross-section of the guide rod 401 can be rectangular, etc.
[0025] When the first tray assembly 402 slides along the guide rod 401 in the direction away from the light-transmitting area 111, a buffer pad is also provided on the guide rod 401 to prevent the first tray assembly 402 from colliding with other structures, thereby blocking the first tray assembly 402. The buffer pad is provided at the end of the guide rod 401.
[0026] In some embodiments, the first pallet assembly 402 includes a first pallet 4021, which has a first through hole and a second through hole along the length of the guide rod 401. The first guide rod 4011 passes through the first through hole, and the second guide rod 4012 passes through the second through hole. The first through hole has a circular cross-section, and the second through hole has an oblong cross-section. The length direction of the second through hole's cross-section is perpendicular to the length direction of the first guide rod 4011 and the length direction of the second guide rod 4012.
[0027] The diameter of the first through hole is equal to the diameter of the first guide rod 4011. When the first guide rod 4011 passes through the first through hole, the first pallet assembly 402 is limited in the direction perpendicular to the length direction of the first guide rod 4011, that is, limited in the radial direction of the first guide rod 4011. The width of the second through hole is equal to the diameter of the second guide rod 4012. When the second guide rod 4012 passes through the second through hole, the first pallet assembly 402 is limited in the width direction of the second through hole, that is, limited in the circumferential direction of the first guide rod 4011.
[0028] In other embodiments, such as Figure 3 As shown, the first tray assembly 402 includes a first tray 4021, at least one first sliding sleeve 4022, and at least one second sliding sleeve 4023; at least one first sliding sleeve 4022 is fitted onto the first guide rod 4011, and at least one second sliding sleeve 4023 is fitted onto the second guide rod 4012, and at least one second sliding sleeve 4023 is movable toward or away from the first guide rod 4011; the first tray 4021 is fixed to at least one first sliding sleeve 4022 and at least one second sliding sleeve 4023, and the sliding cover 5 is connected to the first tray 4021.
[0029] When the first drive mechanism 4 includes a first drive assembly 403, the first drive assembly 403 is fixedly connected to the first pallet 4021, thereby driving the first pallet 4021 to slide along the first guide rod 4011 under the limiting of the first sliding sleeve 4022 and the second sliding sleeve 4023. When the first drive mechanism 4 includes a first rotary lifting assembly 404, both the first pallet 4021 and the sliding cover 5 are rotatably connected to the first rotary lifting assembly 401. The sliding cover 5 is located above the first pallet 4021, thereby preventing the first pallet 4021 from being exposed when the sliding cover 5 blocks the light-transmitting area 111.
[0030] Optionally, the first sliding sleeve 4022 has a circular hole, or as... Figure 5 As shown, the first sliding sleeve 4022 has a 3 / 4 circular hole so that after the first sliding sleeve 4022 is fitted onto the first guide rod 4011, the first sliding sleeve 4022 will not wobble in the radial direction of the first guide rod 4011, so as to achieve the radial positioning of the first sliding sleeve 4022 on the first guide rod 4011.
[0031] Optionally, such as Figure 5 As shown, the second sliding sleeve 4023 has a U-shaped groove, and the opening of the U-shaped groove faces or is away from the first guide rod 4011.
[0032] The bottom of the U-shaped groove is either arc-shaped or planar. The width of the U-shaped groove is equal to the diameter of the second guide rod 4012. After the second sliding sleeve 4023 is fitted onto the second guide rod 4012, the second guide rod 4012 can be limited in the width direction of the U-shaped groove. In the depth direction of the U-shaped groove, the second guide rod 4012 has room for movement, thus cooperating with the first sliding sleeve 4022 to position the first pallet assembly 402 while avoiding over-positioning of the first pallet assembly 402.
[0033] Optionally, the second sliding sleeve 4023 has an elongated hole, and the length direction of the elongated hole, the length direction of the first guide rod 4011, and the length direction of the second guide rod 4012 are coplanar.
[0034] The width of the elongated hole is equal to the diameter of the second guide rod 4012. After the second sliding sleeve 4023 is fitted onto the second guide rod 4012, the second guide rod 4012 can be limited in the width direction of the elongated hole. In the length direction of the elongated hole, the second guide rod 4012 has room for movement, thus cooperating with the first sliding sleeve 4022 to position the first pallet assembly 402 while avoiding over-positioning of the first pallet assembly 402.
[0035] It should be noted that, in addition to limiting the second guide rod 4012 along the circumferential direction of the first guide rod 4011 through a U-shaped groove or an oblong hole, the second sliding sleeve 4023 can also limit the second guide rod 4012 along the circumferential direction of the first guide rod 4011 through other structures. This application embodiment does not limit this.
[0036] In some embodiments, the first drive assembly 403 is an electric telescopic rod, which is fixed inside the storage portion 1, and the extended end of the electric telescopic rod is fixedly connected to the first tray assembly 402. In this way, the first tray assembly 402 can be driven to slide along the first guide rod 4011 by the extension or retraction of the electric telescopic rod.
[0037] The electric telescopic rod is fixed to the side wall of the storage part 1 to ensure that the direction of extension or retraction of the electric telescopic rod is parallel to the length direction of the first guide rod 4011.
[0038] In other embodiments, such as Figure 4 As shown, the first drive assembly 403 includes a drive motor 4031 and a transmission assembly 4032; the drive motor 4031 is fixed inside the storage part 1, and the transmission assembly 4032 is connected to the output shaft of the drive motor 4031 and the first pallet assembly 402.
[0039] Based on the above description, the laser projection device includes a controller that is electrically connected to a drive motor 4031, and the drive motor 4031 is started when it receives a control command, so as to drive the first pallet assembly 402 to slide along the first guide rod 4011 via the transmission component 4032.
[0040] Among them, the drive motor 4031 is a geared motor to avoid the drive motor 4031 rotating too fast, thereby reducing the sliding speed of the first pallet assembly 402 and thus avoiding the situation where the first pallet assembly 402 causes the first rotating lifting assembly 404 to rotate too much, resulting in excessive impact on the first rotating lifting assembly 404.
[0041] The conveying direction of the conveying component 4032 is parallel to the length direction of the first guide rod 4011 to avoid jamming when the conveying component 4032 drives the first pallet component 402 to move.
[0042] Optionally, the first pallet assembly 402 has a rack, the length direction of which is parallel to the length direction of the first guide rod 4011; the transmission assembly 4032 is a transmission gear, which is fixedly connected to the output shaft of the drive motor 4031, and the transmission gear meshes with the rack. In this way, when the drive motor 4031 drives the transmission gear to rotate, the first pallet assembly 402 can be driven through the meshing of the transmission gear and the rack.
[0043] The transmission gear is a reduction gear set to further reduce the sliding speed of the first support plate assembly 402. The length direction of the rack is parallel to the length direction of the first guide rod 4011.
[0044] Optionally, such as Figure 6 As shown, the conveying assembly 4032 includes a first pulley 40321, a second pulley 40322, and a conveyor belt 40323. The first pulley 40321 and the second pulley 40322 are rotatably fixed inside the housing 1. The conveyor belt 40323 is fitted onto the first pulley 40321 and the second pulley 40322. The first pulley 40321 is fixedly connected to the output shaft of the drive motor 4031, and the conveyor belt 40323 is fixedly connected to the first pallet assembly 402. Thus, when the drive motor 4031 drives the first pulley 40321 to rotate, the first pallet assembly 402 can be driven through the conveyor belt.
[0045] The conveying direction of the conveyor belt 40323 is parallel to the length direction of the first guide rod 4011, that is, the axial direction of the first pulley 40321 and the axial direction of the second pulley 40322 are both perpendicular to the length direction of the first guide rod 4011.
[0046] Since the conveyor belt 40323 is fitted onto the pulley, the edge of the pulley protrudes from the conveyor belt 40323. To facilitate the connection between the conveyor belt 40323 and the first pallet assembly 402, as follows... Figure 4 and Figure 6 As shown, the first drive mechanism 4 also includes a first connecting plate 408, the two ends of which are fixedly connected to the conveyor belt 40323 and the first pallet assembly 402, respectively.
[0047] Optionally, the width of the first connecting plate 408 is less than or equal to the width of the conveyor belt 40323, and the first connecting plate 408 is in a right-angled Z-shape. Of course, the width of the first connecting plate 408 can also be greater than the width of the conveyor belt 40323, and the first connecting plate 408 can also be in other shapes; this embodiment of the application does not limit this.
[0048] In some embodiments, such as Figure 7 or Figure 8 As shown, the first rotary lifting assembly 404 includes a plurality of first rotary lifting members 4041, and the two ends of each first rotary lifting member 4041 are rotatably connected to the sliding cover 5 and the first pallet assembly 402, respectively.
[0049] In this way, when the sliding cover 5 is stationary in the translational direction, as the first support plate assembly 402 slides, the end of the first rotating lifting member 4041 connected to the first support plate assembly 402 moves synchronously, realizing the rotation of the first rotating lifting member 4041, and thus realizing the lifting and lowering of the sliding cover 5 while the length of the first rotating lifting member 4041 remains unchanged.
[0050] Among them, multiple first rotating lifting members 4041 form a polygon, so that while the first rotating lifting members 4041 cause the sliding cover 5 to rise and fall, they can also provide stable support for the sliding cover 5.
[0051] Optionally, the first rotating lifting member 4041 has a straight structure, in which case its two ends are rotatably connected to the lower surface of the sliding cover 5 and the upper surface of the first pallet assembly 402, respectively. Of course, the first rotating lifting member 4041 can also have other shapes besides a straight structure. For example, the first rotating lifting member 4041 has a U-shaped structure, in which case its two ends are rotatably connected to the side of the sliding cover 5 and the side of the first pallet assembly 402, respectively.
[0052] Optionally, the first rotary lifting assembly 404 includes not only a plurality of first rotary lifting members 4041, but also a plurality of connecting rods. Each connecting rod connects to at least two of the plurality of first rotary lifting members 4041, thereby enabling the linkage of the plurality of first rotary lifting members 4041 through the plurality of connecting rods, so as to enable the synchronous rotation of the plurality of first rotary lifting members 4041 and achieve balance during the lifting and lowering process of the sliding cover 5.
[0053] In this embodiment, the first driving mechanism 4 includes a plurality of first elastic elements, each of which is connected at both ends to the sliding cover 5 and the first support plate assembly 402. Thus, the first elastic elements can buffer the lifting and lowering of the sliding cover 5, and simultaneously facilitate the lowering of the sliding cover 5 under the elastic force generated by the first elastic elements.
[0054] In this embodiment, when the first pallet assembly 402 drives the first rotary lifting assembly 404 to rotate, the rotation angle of the first rotary lifting assembly 404 determines the lifting height of the sliding cover 5. When the first rotary lifting assembly 404 rotates, it may over-rotate, causing the sliding cover 5 to rise and then fall again, thus preventing the sliding cover 5 from blocking the area where the light-transmitting area 111 is located.
[0055] In some embodiments, such as Figure 7 or Figure 8 As shown, the first rotary lifting assembly 404 includes a first rotary lifting member 4041 whose side wall has a protrusion 4042. When the first rotary lifting member 4041 rotates, the protrusion 4042 can abut against the sliding cover 5 or the first pallet assembly 402. In this way, the abutment of the protrusion 4042 against the sliding cover 5 or the first pallet assembly 402 can prevent the first rotary lifting member 4041 from rotating excessively.
[0056] Specifically, if the protrusion 4042 abuts against the sliding cover 5 when the sliding cover 5 is raised, the protrusion 4042 is located on the side of the first rotating lifting member 4041 facing away from the first driving assembly 403; if the protrusion 4042 abuts against the first pallet assembly 402 when the sliding cover 5 is raised, the protrusion 4042 is located on the side of the first rotating lifting member 4041 facing the first driving assembly 403.
[0057] In other embodiments, such as Figure 9 As shown, the first drive mechanism 4 includes a third limiting member 411, which is fixedly connected to the first pallet assembly 402. The storage part 1 has a third blocking member 114 that cooperates with the third limiting member 411. By blocking the third limiting member 411 with the third blocking member 114, the maximum sliding distance of the first pallet assembly 402 is limited, thereby limiting the rotation angle of the first rotating lifting member 4041 and preventing the first rotating lifting member 4041 from over-rotating.
[0058] Optionally, such as Figure 9 As shown, the third limiting member 411 is L-shaped. At this time, one side of the third limiting member 411 is fixedly connected to the upper or lower surface of the first tray assembly 402, and the other side of the third limiting member 411 cooperates with the third blocking member 114. Of course, the third limiting member 411 can also be other structures, and this embodiment does not limit it.
[0059] In some other embodiments, the sidewall of any one of the multiple guide rods 401 has a limiting block, which is used to block the first pallet assembly 402 to limit the maximum sliding distance of the first pallet assembly 402, thereby limiting the rotation angle of the first rotating lifting member 4041 and avoiding the first rotating lifting member 4041 from over-rotating.
[0060] Of course, in this application embodiment, at least two of the above three embodiments can be combined to limit the rotation angle of the first rotating lifting member 4041 and avoid the first rotating lifting member 4041 from rotating excessively. This application embodiment does not limit this.
[0061] In this embodiment, when the first pallet assembly 402 moves the sliding cover 5, to ensure the accuracy of the position of the sliding cover 5 after translation, the machining precision of each moving part is usually improved to ensure that the sliding cover 5 is directly below the light-transmitting area 111. However, this undoubtedly increases the machining difficulty of each part. Therefore, in this embodiment, as... Figure 9 or Figure 10As shown, the first driving mechanism 4 also includes a first limiting member 409 and a first adjusting component 413. The storage part 1 has a first blocking member 112. The first limiting member 409 is fixedly connected to the sliding cover 5. When the sliding cover 5 moves horizontally, the first blocking member 112 is used to block the first limiting member 409 to limit the maximum horizontal movement distance of the sliding cover 5. The first adjusting component 413 is fixed on the first limiting member 409. The first adjusting component 413 is used to adjust the maximum horizontal movement distance of the sliding cover 5 to limit the sliding cover 5 directly below the light-transmitting area 111.
[0062] In this way, when the first tray assembly 402 moves the sliding cover 5 horizontally, the first adjustment assembly 413 adjusts the maximum horizontal movement distance of the sliding cover 5 to ensure the accuracy of the position of the sliding cover 5 after horizontal movement. As a result, after the sliding cover 5 rises to the area where the light-transmitting area 111 is located, the gap between the edge of the sliding cover 5 and the edge of the light-transmitting area 111 is minimized, improving the integration of the sliding cover 5 and the storage part 1, thereby enhancing the aesthetics of the storage part 1 when the sliding cover 5 blocks the light-transmitting area 111.
[0063] After adjusting the maximum translation distance of the sliding cover 5 by the first adjustment component 413, if the sliding cover 5 does not move directly below the light-transmitting area 111, the thickness of the first adjustment component 413 can be adjusted according to the distance difference between the position of the sliding cover 5 after moving the maximum translation distance and the corresponding position directly below the light-transmitting area 111, thereby further adjusting the maximum translation distance of the sliding cover 5 to ensure that the sliding cover 5 is located directly below the light-transmitting area 111 after moving according to the maximum translation distance.
[0064] In some embodiments, the thickness of the first adjusting component 413 is adjustable, in which case the first adjusting component 413 is non-removably fixed to the first limiting member 409. Optionally, the first adjusting component 413 includes two side plates and a plurality of connecting members, the two side plates are arranged opposite to each other, each connecting member connects to the two side plates, and the length of the connecting member between the two side plates is adjustable. In this way, the length of the connecting member between the two side plates can be adjusted according to the distance difference to adjust the distance between the two side plates, thereby realizing the adjustment of the thickness of the first adjusting component 413.
[0065] For example, the connector includes a double-ended bolt, with two nuts attached to each end of the bolt, and a side plate fastened between the two nuts.
[0066] In other embodiments, the first adjusting block with a different thickness can be replaced according to the determined distance difference, so that the maximum translation distance of the sliding cover 5 can be further adjusted by using the first adjusting block with a different thickness. In this case, the first adjusting component 413 is detachably fixed to the first limiting member 409. For example, the first adjusting component 413 is an adjusting block.
[0067] Optionally, the first adjusting component 413 is fixed to the first limiting member 409 on the side facing the first blocking member 112. The first adjusting component 413 is used to adjust the minimum distance between the first limiting member 409 and the first blocking member 112. In this way, by adjusting the maximum translational distance of the first limiting member 409 via the first adjusting block, the maximum translational distance of the sliding cover 5 can be adjusted. Or as... Figure 9 or Figure 10 As shown, the first adjustment component 413 is fixed on the side of the first limiting member 409 facing away from the first blocking member 112. The first adjustment component 413 is used to adjust the minimum distance between the first limiting member 409 and the sliding cover 5. The sliding cover 5 has a U-shaped structure, so the maximum translation distance of the sliding cover 5 can be directly adjusted by the first adjustment block.
[0068] Of course, besides fixing the first adjusting component 413 in the manner described above, other methods can also be used to fix the first adjusting component 413, and this application embodiment does not limit this. For example, the first adjusting component 413 is fixed on the first blocking member 112 to adjust the maximum translational distance of the first limiting member 409.
[0069] Optionally, the first blocking member 112 is a roller, which is rotatably fixed inside the storage part 1. In this way, when the first rotating lifting assembly 404 lifts the sliding cover 5, the sliding cover 5 has a tendency to translate and a tendency to rise. Under the action of the rising trend, the sliding cover 5 drives the roller to rotate through the first limiting member 409, thereby reducing the friction between the first limiting member 409 and the roller, so as to reduce the resistance to the rise of the sliding cover 5.
[0070] To prevent the first limiting member 409 from obstructing the sliding cover 5 from rising to the area where the light-transmitting zone 111 is located, when the sliding cover 5 has a flat structure, the first limiting member 409 is L-shaped. In this case, one side of the first limiting member 409 is fixedly connected to the side of the sliding cover 5 facing the first support plate assembly 402, and the other side of the first limiting member 409 cooperates with the first blocking member 112. When the sliding cover 5 has a U-shaped structure, the first limiting member 409 is straight or right-angled Z-shaped. In this case, one end of the first limiting member 409 is fixedly connected to the inner wall of the sliding cover 5, and the other end of the first limiting member 409 cooperates with the first blocking member 112.
[0071] In this embodiment, when the first pallet assembly 402 continues to slide to lift the sliding cover 5 via the first rotary lifting assembly 404, in order to ensure that the surface of the sliding cover 5 is flush with the outer surface of the storage part 1, the machining accuracy of each moving part is usually increased. However, this undoubtedly increases the machining difficulty of each part. Therefore, in this embodiment, as... Figure 11 As shown, the first drive mechanism 4 also includes a third adjustment component 415, which is used to adjust the maximum sliding distance of the first pallet assembly 402.
[0072] In conjunction with the second method of limiting the first pallet assembly 402 described above, such as Figure 11 As shown, the third adjustment component 415 is fixedly connected to the third limiting member 411, and the positional relationship and connection method between the third adjustment component 415 and the third limiting member 411 are the same as or similar to the positional relationship and connection method between the first adjustment component 413 and the first limiting member 409 described in the above embodiment. This application embodiment does not limit this aspect.
[0073] In conjunction with the third method of limiting the first pallet assembly 402 described above, the third adjusting component 415 is fixedly connected to the limiting block, and the third adjusting block is located on the side of the limiting block facing the first pallet assembly 402. The connection method between the third adjusting component 415 and the third limiting member 411 is the same as or similar to the connection method between the first adjusting component 413 and the first limiting member 409 described in the above embodiments, and this application embodiment does not limit this aspect.
[0074] In this way, by adjusting the maximum sliding distance of the first tray assembly 402 through the third adjustment component 415, the rotation angle of the first rotating lifting assembly 404 can be adjusted to achieve the adjustment of the lifting height of the sliding cover 5, so as to ensure the accuracy of the height of the sliding cover 5 after it is lifted. Thus, after the sliding cover 5 is lifted, the height difference between the upper surface of the sliding cover 5 and the outer surface of the storage part 1 is minimized to the maximum extent, further improving the integration of the sliding cover 5 and the storage part 1, thereby enhancing the aesthetics of the storage part 1 when the sliding cover 5 blocks the light-transmitting area 111.
[0075] In this embodiment, when the sliding cover 5 blocks the light-transmitting area 111, in order to limit the sliding cover 5 to be directly below the light-transmitting area 111, in some embodiments, the sliding cover 5 is a single piece. In this case, the storage part 1 has a first blocking member 112, and the first driving mechanism 4 also includes a first limiting member 409. The first limiting member 409 is fixedly connected to the sliding cover 5. When the sliding cover 5 moves horizontally, the first blocking member 112 blocks the first limiting member 409 to limit the sliding cover 5 to be directly below the light-transmitting area 111. In this way, when the first tray assembly 402 continues to slide, the sliding cover 5 can be limited by the action of the first blocking member 112, thereby ensuring the rotation of the first rotating lifting assembly 404.
[0076] In other embodiments, the sliding cover 5 is larger in size. To ensure the balanced rise of the sliding cover 5, such as... Figure 9 or Figure 10 As shown, the sliding cover 5 is divided into a first sub-sliding cover 51 and a second sub-sliding cover 52, that is, the sliding cover 5 includes a first sub-sliding cover 51 and a second sub-sliding cover 52.
[0077] When the first sub-sliding cover 51 and the second sub-sliding cover 52 are housed in the storage part 1, the first sub-sliding cover 51 and the second sub-sliding cover 52 are located on opposite sides of the light-transmitting area 111, respectively; when the light-transmitting area 111 is blocked, the first sub-sliding cover 51 and the second sub-sliding cover 52 move towards each other, and after the first sub-sliding cover 51 and the second sub-sliding cover 52 come into contact, the first sub-sliding cover 51 and the second sub-sliding cover 52 can be mutually limited to be directly below the light-transmitting area 111.
[0078] Of course, besides achieving mutual limiting through the abutment of the first sub-sliding cover 51 and the second sub-sliding cover 52, the limiting of the first sub-sliding cover 51 and the second sub-sliding cover 52 can also be achieved by setting a limiting member as described in the above embodiments; or by combining the above two methods to achieve the limiting of the first sub-sliding cover 51 and the second sub-sliding cover 52. This application embodiment does not limit this. For example, as... Figure 9 or Figure 10 As shown, the first driving mechanism 4 includes a first limiting member 409 and a second limiting member 410. The first limiting member 409 is fixedly connected to the first sub-sliding cover 51, and the second limiting member 410 is fixedly connected to the second sub-sliding cover 52. Correspondingly, the storage part 1 has a first blocking member 112 and a second blocking member 113. The first sub-sliding cover 51 is limited by the first blocking member 112 blocking the first limiting member 409, and the second sub-sliding cover 52 is limited by the second blocking member 113 blocking the second limiting member 410.
[0079] Among them, such as Figure 9 or Figure 10 As shown, the first sub-sliding cover 51 is located above the first pallet assembly 402 and is rotatably connected to the first rotary lifting assembly 404. When the first pallet assembly 402 slides, it causes the first rotary lifting assembly 404 and the first sub-sliding cover 51 to translate. After the first sub-sliding cover 51 is limited, the first pallet assembly 402 continues to slide to cause the first rotary lifting assembly 404 to rotate, thereby realizing the lifting and lowering of the first sub-sliding cover 51.
[0080] In order to achieve the switching between the second sub-slider 52 being retracted and blocking the light-transmitting area 111, such as Figure 9 or Figure 10 As shown, the first drive mechanism 4 also includes a second pallet assembly 405, a second drive assembly 406, and a second rotary lifting assembly 407; the second pallet assembly 405 is slidably sleeved on a plurality of guide rods 401, the second drive assembly 406 is fixed in the storage part 1 and connected to the second pallet assembly 405, the second drive assembly 406 is used to drive the second pallet assembly 405 to slide, the second sub-sliding cover 52 is located above the second pallet assembly 405, and both the second sub-sliding cover 52 and the second pallet assembly 405 are rotatably connected to the second rotary lifting assembly 407.
[0081] In this way, the second drive assembly 406 can drive the second pallet assembly 405 to slide along the guide rod 401, thereby driving the second rotary lifting assembly 407 and the second sub-sliding cover 52 to move synchronously. After the second sub-sliding cover 52 is limited, the second pallet assembly 405 continues to slide, thereby causing the second rotary lifting assembly 407 to rotate, thus realizing the lifting and lowering of the second sub-sliding cover 52.
[0082] To avoid over-positioning of the second pallet assembly 405 by the multiple guide rods 401, and to ensure the parallelism of the first guide rod 4011 and the second guide rod 4012 among the multiple guide rods 401, the first guide rod 4011 limits the second pallet assembly 405 in a direction perpendicular to its own length direction, and the second guide rod 4012 limits the second pallet assembly 405 in a circumferential direction surrounding the first guide rod 4011; or the second guide rod 4012 limits the second pallet assembly 405 in a direction perpendicular to its own length direction, and the first guide rod 4011 limits the second pallet assembly 405 in a circumferential direction surrounding the second guide rod 4012.
[0083] It should be noted that as the length of the guide rod 401 increases, the distance caused by the parallel error between the two parallel guide rods 401 will also increase. Therefore, when the sliding cover 5 includes a first sub-sliding cover 51 and a second sub-sliding cover 52, each guide rod 401 in the first drive mechanism 4 includes two guide rod segments 401. The first pallet assembly 402 is fitted onto the first guide rod segment 401, and the second pallet assembly 405 is fitted onto the second guide rod segment 401. In this way, by reducing the length of the guide rod 401 corresponding to the pallet assembly, the parallelism between the two guide rods 401 can be reduced, thereby reducing processing requirements and processing difficulty.
[0084] In this embodiment of the application, when the sliding cover 5 includes a first sub-sliding cover 51 and a second sub-sliding cover 52, in order to ensure the accuracy of the position of the first sub-sliding cover 51 and the second sub-sliding cover 52 after translation, such as Figure 9 or Figure 10 As shown, the first drive mechanism 4 includes a first adjustment component 413 and a second adjustment component 414. The first adjustment component 413 is fixedly connected to the first limiting member 409 to adjust the maximum translation distance of the first sub-sliding cover 51. The second adjustment component 414 is fixedly connected to the second limiting member 410 to adjust the maximum translation distance of the second sub-sliding cover 52.
[0085] The structure of the second limiting member 410, the structure of the second adjusting component 414, and the positional relationship between the second adjusting component 414 and the second limiting member 410 can all be referred to the structure of the first limiting member 409, the structure of the first adjusting component 413, and the positional relationship between the first adjusting component 413 and the first limiting member 409 in the above embodiments. This application embodiment will not elaborate on these aspects.
[0086] In summary, by ensuring the accuracy of the position of the first sub-sliding cover 51 and the second sub-sliding cover 52 after translation, it can be ensured that the first sub-sliding cover 51 and the second sub-sliding cover 52 are located directly below the light-transmitting area 111, thereby ensuring the aesthetics of the storage part 1 after the first sub-sliding cover 51 and the second sub-sliding cover 52 are raised.
[0087] In this embodiment, the sliding cover 5 includes a first sub-sliding cover 51 and a second sub-sliding cover 52. The maximum sliding distance of the first pallet assembly 402 can be limited by the three methods described in the above embodiments to avoid over-rotation of the first rotary lifting assembly 404, thereby limiting the lifting height of the first sub-sliding cover 51. For the second sub-sliding cover 52, the maximum sliding distance of the second pallet assembly 402 can be limited by the same or similar methods as described in the above embodiments to avoid over-rotation of the second rotary lifting assembly 407, thereby limiting the lifting height of the second sub-sliding cover 52.
[0088] For example, such as Figure 11 As shown, the first drive mechanism 4 includes a fourth limiting member 412, which is fixedly connected to the second pallet assembly 405. The storage part 1 has a fourth blocking member 115 that cooperates with the fourth limiting member 412. By blocking the fourth limiting member 412 with the fourth blocking member 115, the maximum sliding distance of the second pallet assembly 405 is limited, thereby limiting the rotation angle of the second rotating lifting member and preventing the second rotating lifting member from over-rotating.
[0089] In addition, to ensure the accuracy of the rising height of the first sub-sliding cover 51 and the second sub-sliding cover 52, and to ensure that the upper surfaces of the first sub-sliding cover 51, the second sub-sliding cover 52, and the outer surface of the storage part 1 are flush, such as... Figure 11 As shown, in addition to the third adjustment component 415, the first drive mechanism 4 also includes a fourth adjustment component 416. The third adjustment component 415 is used to adjust the maximum sliding distance of the first pallet assembly 402, and the fourth adjustment component 416 is used to adjust the maximum sliding distance of the second pallet assembly 405.
[0090] The structure and installation position of the fourth adjustment component 416 are similar to those of the third adjustment component 415 in the above embodiments, and will not be described again in this application embodiment. Thus, the maximum sliding distance of the first support plate assembly 402 can be adjusted by the third adjustment component 415, thereby adjusting the lifting height of the first sub-sliding cover 51. Similarly, the maximum sliding distance of the second support plate assembly 405 can be adjusted by the fourth adjustment component 416, thereby adjusting the lifting height of the second sub-sliding cover 52, ensuring the accuracy of the positions of the first and second sub-sliding covers 51 and 52 after they are raised.
[0091] In this embodiment of the application, when the sliding cover 5 includes a first sub-sliding cover 51 and a second sub-sliding cover 52, a first elastic member is connected between the first sub-sliding cover 51 and the first support plate assembly 402, so that the first elastic member can buffer the lifting and lowering of the first sub-sliding cover 51, and at the same time, the elastic force generated by the first elastic member facilitates the lowering of the first sub-sliding cover 51.
[0092] In addition, the first drive mechanism 4 also includes multiple second elastic elements, each of which is connected at both ends to the second sub-sliding cover 52 and the second support plate assembly 405. The second elastic elements are tension springs or other elastic structural components. Thus, the second elastic elements can buffer the raising and lowering of the second sub-sliding cover 52, and the elastic force generated by the second elastic elements facilitates the lowering of the second sub-sliding cover 52.
[0093] In the embodiments of this application, such as Figure 12 As shown, the laser projection device also includes a projection screen 3, which receives the laser beam emitted by the laser projector 1 to display an image. The housing 1 includes a first housing 11 and a second housing 12. A light-transmitting area 111 is located on the first housing 11, and the laser projector 2 is located inside the first housing 11. A first drive mechanism 4 is fixed inside the first housing 11. The second housing 12 has an opening 121, and the projection screen 3 is fixed inside the second housing 12 and can be housed within the second housing 12, or pass through the opening 121 and unfold. In this way, by housing the projection screen 3 through the second housing 12, the integrated design of the laser projector 2 and the projection screen 3 is ensured, avoiding changes in the relative positions between the laser projector 2 and the projection screen 3.
[0094] Optionally, such as Figure 13As shown, the projection screen 3 includes a screen 31, a roll-up assembly 32, and a lifting assembly 33. The roll-up assembly 32 is rotatably limited within the cavity of the second receiving portion 12. The first end of the lifting assembly 33 is fixed within the second receiving portion 12. The first side of the screen 31 is fixedly connected to the roll-up assembly 32. The roll-up assembly 32 can rotate along its own circumference to control the screen 313 to retract. The second side of the screen 31 is fixedly connected to the lifting assembly 33. The lifting assembly 33 can drive the second side of the screen to rise to control the screen 31 to unfold.
[0095] The structures of the curling assembly 32 and the lifting assembly 33 can be referenced from related technologies, and are not limited in this embodiment. For example, the lifting assembly 33 includes a lifting motor and a lifting frame. The connection method between the lifting motor and the lifting frame can be referenced from related technologies, and will not be elaborated further in this embodiment.
[0096] In this embodiment, when the projection screen 3 extends out of the opening 121 and unfolds, it receives the laser beam emitted by the laser projector 2 to display an image. However, when the projection screen 3 is retracted into the second receiving portion 12, to prevent dirt from entering the second receiving portion 12 along the opening 121 and causing damage to the projection screen 3 after repeated raising and lowering, such as... Figure 13 and Figure 14 As shown, the laser projection device also includes a second drive mechanism 6 and a cover plate 7. The second drive mechanism 6 is fixed inside the second receiving portion 12 and is pulsatorically connected to the cover plate 7. The second drive mechanism 6 is used to drive the cover plate 7 to switch between blocking the opening 121 and being received inside the second receiving portion 12. In this way, when the laser projection device is not in use, the second drive mechanism 6 drives the cover plate 7 to block the area where the opening 121 is located, thereby preventing the projection screen 3 from being exposed and providing effective protection for the projection screen 3.
[0097] The specific positions of the cover plate 7 when it blocks the opening 121 and when it is housed in the second accommodating part 12 can be referred to the positions of the sliding cover 5 when it blocks the light-transmitting area 111 and when it is housed in the first accommodating part 11 as described in the above embodiments. This application embodiment does not limit this.
[0098] Optionally, the second drive mechanism 6 is a lifting push rod. The fixed end of the lifting push rod is fixed in the second accommodating part 12. The lifting end of the lifting push rod is rotatably connected to the first side along the long side of the cover plate 7. Both ends of the second side along the long side of the cover plate 7 have limiting posts. The side wall of the second accommodating part 12 corresponding to the end of the cover plate 7 has a sliding groove. The limiting posts are movably limited in the sliding groove.
[0099] In this way, when the lifting push rod is raised and lowered, it can drive the first side of the upper long side of the cover plate 7 to rise and fall synchronously. At this time, the second side of the upper long side of the cover plate 7 slides along the slide groove based on the limiting post, thereby realizing that the cover plate 7 is retracted into the second receiving part 12, or the cover plate 7 is blocked in the area where the opening 121 is located.
[0100] The lifting rod is fixed vertically within the second receiving portion 12, meaning that the lifting direction of the lifting rod is perpendicular to the plane containing the opening 121. Of course, the lifting direction of the lifting rod can also form a certain angle with the vertical direction; this embodiment does not limit this.
[0101] The slide is straight, and its length direction is not perpendicular to the plane containing the opening 121. For example, the length direction of the slide is parallel to the plane containing the opening 121. Alternatively, the slide is arc-shaped, and the opening 121 of the slide faces away from the lifting push rod.
[0102] In this embodiment, in addition to the laser projection host 2 and the projection screen 3, the laser projection device also includes an audio device 8, which is electrically connected to the laser projection host 2. In this way, when the laser projection host 2 emits a laser beam to display the image on the projection screen 3, the audio data is played synchronously through the audio device 8.
[0103] In some embodiments, the first accommodating portion 11 and the second accommodating portion 12 form a storage portion 1 with an overall T-shaped structure, and the length of the first accommodating portion 11 is less than the length of the second accommodating portion 12. In this case, the audio device 8 is located outside the storage portion 1.
[0104] In other embodiments, such as Figure 15 As shown, the first accommodating part 11 and the second accommodating part 12 form a rectangular storage part 1, and the length of the first accommodating part 11 is equal to the length of the second accommodating part 12. At this time, the audio equipment 8 included in the laser projection device is located inside the first accommodating part 11.
[0105] Optionally, such as Figure 16 As shown, the storage part 1 includes a main housing 13 and a middle partition 14. The middle partition 14 is fixed inside the main housing 13 and divides the inner cavity of the main housing 13 into two cavities along the length direction of the main housing 13 to obtain a first accommodating part 11 with a first cavity and a second accommodating part 12 with a second cavity.
[0106] Optionally, such as Figure 15 or Figure 16 As shown, a first partition plate 116 and a second partition plate 117 are sequentially distributed along the length direction within the first accommodating portion 11. A first mounting cavity is formed between the first partition plate 116 and the adjacent side plate of the first accommodating portion 11. A second mounting cavity is formed between the second partition plate 117 and the adjacent side plate of the second accommodating portion 12. A third mounting cavity is formed between the first partition plate 116 and the second partition plate 117. Each of the first, second, and third mounting cavities contains a support plate 118. At this time, as... Figure 15As shown, a pair of audio devices 8 are located on the rack 118 in the first and second mounting cavities, respectively, and the laser projection host 2 is located on the rack 118 in the third mounting cavity.
[0107] In addition, due to the large weight of the laser projector host 2, in order to ensure the stability of the support provided by the third mounting cavity frame plate 118 for the laser projector host 2, such as Figure 15 or Figure 16 As shown, a reinforcing rib 119 supports the lower part of the third mounting cavity inner frame plate 118.
[0108] In this embodiment, the integrated structure of the laser projector and the projection screen is achieved through the first and second accommodating portions of the housing, avoiding the possibility of changes in the relative positions of the laser projector and the projection screen during use. When using the laser projection device, the first driving mechanism can achieve two-dimensional movement of the cover plate through one-dimensional motion, thus simplifying the structure of the first driving mechanism. Simultaneously, when the first driving mechanism drives the sliding cover, the accuracy of the sliding cover's translation and rising position can be adjusted through the first and second adjusting components, improving the integration of the sliding cover and the first accommodating portion, which in turn improves the aesthetics of the first accommodating portion when the sliding cover blocks the light-transmitting area. Furthermore, only the first and second adjusting components need to be adjusted to achieve the integration of the sliding cover and the first accommodating portion, reducing the requirements for the processing precision of other moving parts and lowering the processing difficulty.
[0109] The above description is merely an illustrative embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present application should be included within the protection scope of the present application.
Claims
1. A laser projection device, characterized by, The laser projection device includes: Storage section, wherein the storage section has a light-transmitting area; The laser projection host is located inside the storage unit, and the light beam emitted by the laser projection host can pass through the light-transmitting area; The first driving mechanism includes a plurality of guide rods and a first tray assembly. The plurality of guide rods are fixed inside the storage part. The first tray assembly is slidably sleeved on the plurality of guide rods. The first guide rod among the plurality of guide rods limits the first tray assembly radially, and the second guide rod among the plurality of guide rods limits the first tray assembly circumferentially. A sliding cover, which is connected to the first tray assembly and is capable of switching between blocking the light-transmitting area and being housed within the storage section; The first driving mechanism further includes a first driving component, which is fixed inside the storage part and connected to the first tray assembly. The first driving component is used to drive the first tray assembly to slide along the first guide rod. The first drive mechanism further includes a first rotary lifting assembly, which connects the sliding cover and the first pallet assembly. When the first pallet assembly slides, it can drive the first rotary lifting assembly to rotate, thereby driving the sliding cover to rise and fall.
2. The laser projection device of claim 1, wherein, The first pallet assembly includes a first pallet, at least one first sliding sleeve, and at least one second sliding sleeve; The at least one first sliding sleeve is fitted onto the first guide rod, and the at least one second sliding sleeve is fitted onto the second guide rod, and the at least one second sliding sleeve is capable of moving toward or away from the first guide rod; The first tray is fixed to at least one first sliding sleeve and at least one second sliding sleeve, and the sliding cover is connected to the first tray.
3. The laser projection device as described in claim 2, characterized in that, The second sliding sleeve has a U-shaped groove, and the opening of the U-shaped groove faces or is away from the first guide rod.
4. The laser projection device as described in claim 2, characterized in that, The second sliding sleeve has an elongated hole, and the length direction of the elongated hole, the length direction of the first guide rod, and the length direction of the second guide rod are coplanar.
5. The laser projection device as described in claim 1, characterized in that, The first drive component includes a drive motor and a transmission component; The drive motor is fixed inside the storage section, and the conveying assembly is connected to the output shaft of the drive motor and the first tray assembly.
6. The laser projection device as described in claim 5, characterized in that, The first pallet assembly has a rack, the length direction of which is parallel to the length direction of the first guide rod; The transmission component is a transmission gear, which is fixedly connected to the output shaft of the drive motor and meshes with the rack.
7. The laser projection device as described in claim 5, characterized in that, The conveying assembly includes a first pulley, a second pulley, and a conveyor belt; The first pulley and the second pulley are rotatably fixed inside the receiving part, the conveyor belt is sleeved on the first pulley and the second pulley, the first pulley is fixedly connected to the output shaft of the drive motor, and the conveyor belt is fixedly connected to the first pallet assembly.
8. The laser projection device as described in claim 7, characterized in that, The first drive mechanism further includes a first connecting plate, the two ends of which are fixedly connected to the conveyor belt and the first pallet assembly, respectively.
9. The laser projection device as described in claim 1, characterized in that, The first rotary lifting assembly includes a plurality of first rotary lifting components, each of which is rotatably connected at both ends to the sliding cover and the first pallet assembly.
10. The laser projection device as described in claim 9, characterized in that, The side wall of the end of the first rotary lifting member has a protrusion, which can abut against the sliding cover or the first pallet assembly when the first rotary lifting member rotates.
11. The laser projection device as described in claim 1, characterized in that, The first drive mechanism further includes a plurality of first elastic elements, each of which is connected at both ends to the sliding cover and the first tray assembly.
12. The laser projection device as described in claim 1, characterized in that, The sliding cover includes a first sub-sliding cover and a second sub-sliding cover, and the first drive mechanism further includes a second support plate assembly; The first sub-sliding cover is connected to the first tray assembly, and the second tray assembly is slidably fitted onto the plurality of guide rods, with the second sub-sliding cover connected to the second tray assembly.
Citation Information
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