Laser projection device

Abstract

The embodiment of the application discloses a kind of laser projection equipment, belong to projection technical field.The laser projection equipment includes: receiving part, with light transmission area;Laser projection host computer is located in receiving part, and the light beam of emission can be transmitted through light transmission area;Slip cover;First drive mechanism includes first limiting component and first adjusting component, first limiting component is fixed in receiving part, and first adjusting component is connected with first limiting component.In the embodiment of the application, under the limiting effect of first limiting component to slip cover, the horizontal moving distance of slip cover is adjusted by first adjusting component, to ensure the accuracy of the position of slip cover after horizontal movement, so as to reduce the gap between slip cover and the edge of light transmission area when slip cover shields light transmission area, avoid dirty into receiving part, and improve the beauty of the overall appearance of laser projection equipment.In addition, by the adjustment of first adjusting component, the processing requirement of first drive mechanism is reduced, and the processing difficulty is reduced.

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 unit, 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 unit is located inside the housing. The laser beam emitted by the laser projector unit 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.

[0004] However, in related technologies, in order to ensure that the sliding cover effectively blocks the light-transmitting area while maintaining the overall aesthetic appearance of the laser projection device, the processing precision of the first drive mechanism is usually increased, which undoubtedly increases the processing difficulty of the first drive mechanism. Summary of the Invention

[0005] This application provides a laser projection device that can reduce the machining precision of the driving components while maintaining overall aesthetics. The technical solution is as follows:

[0006] A laser projection device, the laser projection device comprising:

[0007] Storage section, wherein the storage section has a light-transmitting area;

[0008] 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;

[0009] Sliding cover;

[0010] A first driving mechanism, used to drive the sliding cover to switch between blocking the light-transmitting area and being housed within the storage section, includes:

[0011] The first limiting component is fixed inside the storage part and is used to limit the horizontal movement of the sliding cover;

[0012] The first adjustment component is connected to the first limiting component and is used to adjust the horizontal movement distance of the sliding cover.

[0013] The beneficial effects of the technical solutions provided in this application include at least the following:

[0014] In this embodiment, under the limiting effect of the first limiting component on the sliding cover, the horizontal movement distance of the sliding cover is adjusted by the first adjusting component to ensure the accuracy of the position after the sliding cover moves horizontally. This reduces the gap between the edge of the sliding cover and the light-transmitting area when the sliding cover blocks the light-transmitting area, preventing dirt from entering the storage part and ensuring the effectiveness of the sliding cover in blocking the light-transmitting area. It also improves the overall aesthetics of the laser projection device. Furthermore, the adjustment of the first adjusting component reduces the processing requirements of the first driving mechanism and decreases the processing difficulty. Attached Figure Description

[0015] 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.

[0016] 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;

[0017] Figure 2 This is a cross-sectional structural diagram of a laser projection device in use, provided in an embodiment of this application.

[0018] Figure 3 This is a cross-sectional structural diagram of a sliding cover limiting device provided in an embodiment of this application;

[0019] Figure 4 This is a cross-sectional structural diagram of another laser projection device in use, provided in an embodiment of this application;

[0020] Figure 5 This is a cross-sectional structural diagram of another laser projection device in the off state provided in an embodiment of this application;

[0021] Figure 6 This is a cross-sectional structural diagram of another laser projection device in use, provided in an embodiment of this application;

[0022] Figure 7 This is a cross-sectional structural diagram of another laser projection device in the off state provided in the embodiments of this application;

[0023] Figure 8 This is a side view of the mounting structure of a first drive mechanism provided in an embodiment of this application;

[0024] Figure 9This is a side view cross-sectional structural diagram of a laser projection device provided in an embodiment of this application;

[0025] Figure 10 This is a cross-sectional structural diagram of another laser projection device in use provided in the embodiments of this application;

[0026] 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;

[0027] Figure 12 This is a front view structural diagram of a laser projection device in use, provided in an embodiment of this application.

[0028] Figure 13 This is a schematic diagram of the internal front view of a laser projection device provided in an embodiment of this application;

[0029] 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;

[0030] 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;

[0031] Figure 16 This is a schematic diagram of the frame structure of a storage section provided in an embodiment of this application.

[0032] Figure label:

[0033] 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;

[0034] 11: First receiving part; 12: Second receiving part; 13: Main housing; 14: Intermediate partition;

[0035] 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;

[0036] 121: Opening;

[0037] 31: Screen panel; 32: Roll-up assembly; 33: Third lifting assembly;

[0038] 401: Guide rod; 402: First pallet assembly; 403: First drive assembly; 404: First lifting assembly; 405: Second pallet assembly; 406: Second drive assembly; 407: Second 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;

[0039] 4011: First guide rod; 4012: Second guide rod;

[0040] 4021: First support plate; 4022: First sliding sleeve; 4023: Second sliding sleeve;

[0041] 4031: Drive motor; 4032: Conveyor assembly;

[0042] 40321: First pulley; 40322: Second pulley; 40323: Conveyor belt;

[0043] 4041: First rotating lifting component;

[0044] 51: First sub-slider; 52: Second sub-slider. Detailed Implementation

[0045] 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.

[0046] 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; a laser projection host 2 located inside the storage section 1, and the light beam emitted by the laser projection host 2 can pass through the light-transmitting area 111.

[0047] 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 used to drive the sliding cover 5 to switch between blocking the light-transmitting area 111 and being housed in the storage section 1. The first drive mechanism 4 is fixed inside the storage section 1 and is connected to the sliding cover 5.

[0048] In this way, when the laser projection device is not in use, the sliding cover 5 is moved horizontally to directly below the light-transmitting area 111 by the first drive mechanism 4, thereby blocking the light-transmitting area 111 and protecting the laser projector 2, preventing dirt from entering the storage unit 1 from the light-transmitting area 111. When the laser projection device is in use, the sliding cover 5 is moved horizontally into the storage unit 1 by the first drive mechanism 4, thereby accommodating the sliding cover 5 and ensuring that the beam emitted by the laser projector 2 can pass through the light-transmitting area 111.

[0049] 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.

[0050] In this embodiment of the application, when the first driving mechanism 4 drives the sliding cover 5 to block the light-transmitting area 111, in order to reduce the gap between the sliding cover 5 and the edge of the light-transmitting area 111, the first driving mechanism 4 further includes a first limiting component, which is fixed in the storage part 1 and is used to limit the horizontal movement of the sliding cover 5; and a first adjusting component 413, which is connected to the first limiting component and is used to adjust the horizontal movement distance of the sliding cover 5.

[0051] In this way, under the limiting action of the first limiting component on the sliding cover 5, the horizontal movement distance of the sliding cover 5 is adjusted by the first adjusting component 413 to ensure the accuracy of the position of the sliding cover 5 after horizontal movement. This reduces the gap between the sliding cover 5 and the edge of the light-transmitting area 111 when the sliding cover 5 blocks the light-transmitting area 111, preventing dirt from entering the storage part 1 and ensuring the effectiveness of the sliding cover 5 in blocking the light-transmitting area 111. At the same time, it improves the overall aesthetics of the laser projection device. In addition, the adjustment of the first adjusting component 413 reduces the processing requirements of the first driving mechanism 4 and reduces the processing difficulty.

[0052] In some embodiments, the first limiting component includes a first blocking member 112, which is fixed inside the receiving portion 1 and is used to limit the horizontal movement of the sliding cover 5.

[0053] Optionally, the sliding cover 5 has an extension in the direction away from the light-transmitting area 111. For example, the sliding cover 5 is T-shaped, and the first blocking member 112 blocks the extension, thereby blocking the sliding cover 5 and limiting the sliding cover during the horizontal movement of the sliding cover 5.

[0054] The first adjustment component 413 is fixedly connected to the first blocking member 112 or the extension, thereby adjusting the distance between the first blocking member 112 and the extension to adjust the horizontal movement distance of the sliding cover 5.

[0055] In other embodiments, such as Figure 3 As shown, the first limiting component includes a first blocking member 112 and a first limiting member 409. The first blocking member 112 is fixed inside the storage part 1, and the first limiting member 409 is fixedly connected to the first blocking member 112 or the sliding cover 5. The first blocking member 112 and the first limiting member 409 cooperate to limit the horizontal movement of the sliding cover 5.

[0056] When the first limiting member 409 is fixedly connected to the sliding cover 5, optionally, the first adjusting component 413 is fixed on the side of the first limiting member 409 facing the first blocking member 112. That is, when limiting the sliding cover 5, the first adjusting component 413 is located between the first limiting member 409 and the first blocking member 112. The first adjusting component 413 is used to adjust the distance between the first limiting member 409 and the first blocking member 112. In this way, when the first blocking member 112 blocks the first limiting member 409, the distance between the first limiting member 409 and the first blocking member 112 can be adjusted by the first adjusting block, thereby adjusting the horizontal movement distance of the sliding cover 5. Alternatively, the first adjusting component 413 can be fixed on the side of the first limiting member 409 facing away from the first blocking member 112, that is, as shown in the image. Figure 3 When the sliding cover 5 is limited as shown, the first adjustment component 413 is located between the first limiting member 409 and the sliding cover 5. The first adjustment component 413 is used to adjust the horizontal movement distance of the sliding cover 5.

[0057] 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 horizontal movement distance of the first limiting member 409.

[0058] Optionally, the sliding cover 5 has a flat structure, and the first limiting member 409 is L-shaped. At this time, one side of the first limiting member 409 is opposite to the side of the sliding cover 5 facing away from the light-transmitting area 111, and the other side of the first limiting member 409 cooperates with the first blocking member 112.

[0059] Optionally, such as Figure 3As shown, the sliding cover 5 has a U-shaped structure, and the first limiting member 409 is a right-angled Z-shape. In this configuration, one end of the first limiting member 409 is fixedly connected to the inner wall of the sliding cover 5, and the other end engages with the first blocking member 112; alternatively, one end of the first limiting member 409 is fixedly connected to the first blocking member 112, and the other end engages with the inner wall of the sliding cover 5. In this way, the translational distance of the sliding cover 5 can be limited, and the first limiting member 409 can also prevent the sliding cover 5 from rising to the area where the light-transmitting area 111 is located.

[0060] In this embodiment of the application, after adjusting the horizontal movement distance of the sliding cover 5 by the first adjustment component 413, if the sliding cover 5 does not move to the direct 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 it has moved and the corresponding position directly below the light-transmitting area 111, so as to further adjust the horizontal movement distance of the sliding cover 5, so as to ensure that the sliding cover 5 can be located directly below the light-transmitting area 111 after it has moved according to the adjusted horizontal movement distance.

[0061] 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 a first side plate, a second side plate, and a connecting rod. The first side plate and the second side plate are arranged opposite to each other, and both the first side plate and the second side plate are connected to the connecting rod. The distance between the first side plate and the second side plate is adjustable. In this way, the distance between the first side plate and the second side plate can be adjusted according to the distance difference, thereby adjusting the thickness of the first adjusting component 413.

[0062] Optionally, multiple connecting rods are used to connect the first side plate and the second side plate to ensure the stability of the connection between the two side plates. For example, the connecting rod includes a double-ended bolt, with two nuts connected to each end of the bolt. The first side plate is tightened between the two nuts at one end. Thus, the position of the first side plate can be adjusted by screwing in the two nuts, thereby adjusting the distance between the two side plates.

[0063] In other embodiments, the first adjustment component 413 with different thicknesses can be replaced according to the determined distance difference, so as to continue to adjust the horizontal movement distance of the sliding cover 5 by using the first adjustment component 413 with different thicknesses. In this case, the first adjustment component 413 is detachably fixed to the first limiting member 409. For example, the first adjustment component 413 is an adjustment block.

[0064] In this embodiment of the application, the first driving mechanism 4 drives the sliding cover 5 to move horizontally to directly below the light-transmitting area 111, so as to block the light-transmitting area 111 with the sliding cover 5; or the first driving mechanism 4 drives the sliding cover 5 to move to the area where the light-transmitting area 111 is located, so as to block the light-transmitting area 111 with the sliding cover 5.

[0065] When the sliding cover 5 is directly below the light-transmitting area 111, the first drive mechanism 4 also includes a first translation component. The first translation component is connected to the sliding cover 5. The first translation component 5 drives the sliding cover 5 to switch between being housed in the storage part 1 and being directly below the light-transmitting area 111. At the same time, through the cooperation of the first limiting component and the first adjusting component, it is ensured that the sliding cover 5 is directly below the light-transmitting area 111.

[0066] When the sliding cover 5 blocks the area where the light-transmitting 111 is located, such as Figure 4 and Figure 5 As shown, the first drive mechanism 4 also includes a first translation component, a first lifting component 404, and a second adjustment component 414. The first translation component is fixed inside the storage section 1. The first lifting component 404 connects the sliding cover 5 and the first translation component. The second adjustment component 414 is connected to either the first translation component or the first lifting component 404 and is used to adjust the height of the sliding cover 5. Thus, through the adjustment of the second adjustment component 414, the upper surface of the sliding cover 5 can be flush with the outer surface of the storage section 1 after it is raised, thereby further ensuring the aesthetic appearance of the laser projection device.

[0067] The structure of the second adjustment component 414 can refer to the structure of the first adjustment component 413 described in the above embodiment, and this application embodiment does not limit it. Furthermore, considering the first limiting component described above includes a first blocking member 112, in order to reduce the lifting resistance of the sliding cover 5, the first blocking member 112 is a roller, which is rotatably fixed inside the storage portion 1. Thus, when the first lifting component 404 lifts the sliding cover 5, the sliding cover 5 has an upward tendency, and under the action of this upward tendency, the sliding cover 5 drives the roller to rotate, thereby reducing the friction between the sliding cover 5 and the roller, and thus reducing the resistance to the upward movement of the sliding cover 5.

[0068] The first lifting component 404 in the embodiments of this application will be explained in detail below.

[0069] In this embodiment, the sliding cover 5 can be raised or lowered by the first lifting component 404 alone, or the sliding cover 5 can be raised or lowered by the cooperation of the first translation component and the first lifting component 404.

[0070] When the sliding cover 5 is raised or lowered solely by the first lifting assembly 404, the first lifting assembly 404 is an electric lifting frame, which is fixed to the first translation assembly, and the sliding cover 5 is fixed to the electric lifting frame. In this case, the first translation assembly needs to drive the electric lifting frame and the sliding cover 5 to move synchronously, and the electric lifting frame needs to drive the sliding cover 5 to rise or fall, thus retracting the sliding cover 5 and blocking the light-transmitting area 111. The specific structure of the electric lifting frame can be found in related technologies, and this embodiment does not limit its application.

[0071] At this time, the second adjustment component 414 is located between the electric lifting frame and the sliding cover 5, that is, the second adjustment component 414 is fixed on the electric lifting frame, and the sliding cover 5 is supported on the second adjustment component 414. In this way, when the electric lifting frame lifts the sliding cover 5, the lifting height of the sliding cover 5 is adjusted by the second adjustment component 414 to ensure the accuracy of the lifting height of the sliding cover 5.

[0072] When the sliding cover 5 is raised or lowered through the cooperation of the first translation component and the first lifting component 404, as follows: Figure 6 or Figure 7 As shown, the first lifting assembly 404 includes a plurality of first rotating lifting members 4041. Each first rotating lifting member 4041 has two ends rotatably connected to the sliding cover 5 and the first translation assembly, respectively. The first translation assembly can cause the plurality of first rotating lifting members 4041 to rotate, thereby causing the sliding cover 5 to rise or fall. Thus, when the sliding cover 5 remains stationary in the translation direction, it rises or falls with the rotation of the first rotating lifting members 4041, thereby maintaining the same length of the first rotating lifting members 4041.

[0073] At this time, the second adjustment component 414 is fixed on the first translation component and is used to adjust the rotation angle of the plurality of first rotating lifting components 4041. In this way, by adjusting the rotation angle of the first rotating lifting components 4041, the lifting height of the sliding cover 5 can be adjusted.

[0074] 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.

[0075] 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 translation assembly, 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 translation assembly, respectively.

[0076] Optionally, in addition to including multiple first rotating lifting members 4041, the first lifting assembly 404 also includes multiple connecting rods. Each connecting rod connects to at least two of the multiple first rotating lifting members 4041, thereby enabling the linkage of multiple first rotating lifting members 4041 through multiple connecting rods, so as to achieve synchronous rotation of multiple first rotating lifting members 4041 and realize the balance of the sliding cover 5 during the lifting process.

[0077] The first translation component in the embodiments of this application will be explained in detail below.

[0078] In the embodiments of this application, such as Figure 8 As shown, the first translation component includes a guide rod 401 and a first pallet assembly 402; the guide rod 401 is fixed inside the storage part 1, the first pallet assembly 402 is slidably limited on the guide rod 401, the sliding cover 5 is located above the first pallet assembly 402, and the first lifting component 404 connects the sliding cover 5 and the first pallet assembly 402.

[0079] When the first lifting assembly 404 is an electric lifting frame, the first electric lifting frame is fixed on the first pallet assembly 402; when the first lifting assembly 404 includes a first rotating lifting member 4041, both ends of each first rotating lifting member 4041 are rotatably connected to the sliding cover 5 and the first pallet assembly 402, respectively.

[0080] In some embodiments, there is one guide rod 401, and the cross-section of the guide rod 401 is polygonal. The guide rod 401 is used to limit the radial and circumferential movement of the first pallet assembly 402, that is, the first pallet assembly 402 can only slide along the length of the guide rod 401.

[0081] In other embodiments, there are multiple guide rods 401, which are fixed parallel to each other within the receiving portion 1. In this case, as... Figure 9 As shown, the guide rod 401 has a circular cross-section. This allows multiple guide rods 401 to limit the movement of the first pallet assembly 402, preventing its rotation. Furthermore, the circular shape of the guide rods 401 reduces the frictional resistance between the first pallet assembly 402 and the guide rods 401 during sliding. Of course, the cross-section of the guide rod 401 can also be other shapes; for example, it can be rectangular.

[0082] When there are multiple guide rods 401, taking two guide rods 401 as an example, to avoid over-positioning of the first pallet assembly 402 on the two guide rods 401, such as... Figure 9As shown, the first guide rod 4011 of the two guide rods 401 limits the first pallet assembly 402 in the radial direction, and the second guide rod 4012 of the two guide rods 401 limits the first pallet assembly 402 in the circumferential direction of the first guide rod 4011.

[0083] In this way, the second guide rod 4012 limits the first pallet assembly 402 along the circumferential direction surrounding the first guide rod 4011. That is, the second guide rod 4012 has a movement gap in the direction close to or far 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.

[0084] It should be noted that when the first tray assembly 402 slides along the guide rod 401 toward the light-transmitting area 111, it can be limited by the first limiting component. When the first tray assembly 402 slides along the guide rod 401 away from the light-transmitting area 111, a buffer pad is also fitted on the guide rod 401 to prevent the first tray assembly 402 from colliding with other structures. This buffer pad then acts as a barrier against the first tray assembly 402. The buffer pad is fitted onto the end of the guide rod 401.

[0085] 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.

[0086] 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.

[0087] In other embodiments, such as Figure 9As shown, the first pallet assembly 402 includes a first pallet 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 capable of moving towards or away from the first guide rod 4011; the first pallet 4021 is fixed on at least one first sliding sleeve 4022 and at least one second sliding sleeve 4023, and is connected to the first drive assembly 403; the sliding cover 5 is located above the first pallet 4021, and both the sliding cover 5 and the first pallet 4021 are connected to the first lifting assembly 404.

[0088] Optionally, the first sliding sleeve 4022 has a circular hole, or as... Figure 9 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.

[0089] Optionally, such as Figure 9 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.

[0090] 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.

[0091] 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.

[0092] 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.

[0093] 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.

[0094] In this embodiment of the application, in order to realize the sliding of the first pallet assembly 402 along the guide rod 401, the first pallet assembly 402 can be pushed manually to slide, or the first pallet assembly 402 can be pushed electrically to slide.

[0095] 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 guide rod 401, 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 guide rod 401.

[0096] When electric propulsion is achieved, such as Figure 3 or Figure 8 As shown, the first translation component also includes a first drive component 403, which is fixed inside the storage part 1 and connected to the first tray assembly 402. The first drive component 403 is used to drive the first tray assembly 402 to slide along the guide rod 401. 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 drive component 403.

[0097] It should be noted that 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.

[0098] 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.

[0099] 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.

[0100] In other embodiments, such as Figure 8As 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.

[0101] 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.

[0102] Among them, the drive motor 4031 is a geared motor to avoid the drive motor 4031 rotating too fast and reduce the sliding speed of the first pallet assembly 402.

[0103] 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.

[0104] 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.

[0105] 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.

[0106] Optionally, such as Figure 10 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 40323.

[0107] 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.

[0108] 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 or Figure 10 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.

[0109] 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, and the first connecting plate 408 can also be in other shapes; this application embodiment does not limit this.

[0110] In this embodiment, the first translation component further 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. The first elastic elements are tension springs or other elastic structural components. Thus, the first elastic elements can buffer the raising and lowering of the sliding cover 5, and facilitate the lowering of the sliding cover 5 under the elastic force generated by the first elastic elements.

[0111] In this embodiment, when the first lifting assembly 404 includes a first rotating lifting member 4041, and considering the structure of the first translation assembly, the sliding distance of the first pallet assembly 402 determines the rotation angle of the first rotating lifting member 4041, and the rotation angle of the first rotating lifting member 4041 determines the lifting height of the sliding cover 5. Therefore, the sliding distance of the first pallet assembly 402 can be adjusted by the second adjusting assembly 414 to adjust the lifting height of the sliding cover 5, thereby ensuring the accuracy of the lifting height of the sliding cover 5.

[0112] Optionally, the second adjustment component 414 is fixed on the guide rod to adjust the sliding distance of the first pallet assembly 402, thereby adjusting the rotation angle of the first rotating lifting member 4041.

[0113] Optionally, the first drive mechanism 4 further includes a second limiting component, which is fixed inside the storage portion 1 and used to limit the horizontal movement of the first pallet assembly 402. A second adjusting component 414 is connected to the second limiting component and is used to adjust the sliding distance of the first pallet assembly 402. Thus, through the cooperation of the second adjusting component 414 and the second limiting component, the sliding distance of the first pallet assembly 402 is adjusted, thereby adjusting the rotation angle of the first rotating lifting member 4041.

[0114] The structure of the second limiting component is the same as or similar to that of the first limiting component described in the above embodiments, and this application does not limit it.

[0115] For example, such as Figure 5 As shown, the second limiting component includes a second blocking member 113 and a second limiting member 410. The second blocking member 113 is fixed inside the storage part 1, and the second limiting member 410 is fixedly connected to the second blocking member 113. The second blocking member 113 and the second limiting member 410 cooperate to limit the horizontal movement of the sliding cover 5.

[0116] The second limiting member 410 is L-shaped. One side of the second limiting member 410 is fixedly connected to the upper or lower surface of the first tray assembly 402, and the other side of the second limiting member 410 cooperates with the second blocking member 113. Of course, the second limiting member 410 can also have other structures, and this embodiment does not limit them.

[0117] It should be noted that, in conjunction with the aforementioned limiting of the sliding distance of the first pallet assembly 402, the situation of the first rotating lifting member 4041 rotating excessively can also be avoided, thereby preventing the sliding cover 5 from rising and then falling again.

[0118] In some embodiments of this application, when the sliding cover 5 blocks the light-transmitting area 111, the sliding cover 5 is a single piece of structure. In this case, the sliding cover 5 can be moved and lifted by the cooperation of the first translation component and the first lifting component 404, thereby switching between being housed in the storage part 1 and blocking the area where the light-transmitting area 111 is located.

[0119] In other embodiments, the sliding cover 5 is larger in size. To ensure the balanced rise of the sliding cover 5, the sliding cover 5 is divided into a first sub-sliding cover 51 and a second sub-sliding cover 52, that is, as shown below. Figure 5 or Figure 11 As shown, the sliding cover 5 includes a first sub-sliding cover 51 and a second sub-sliding cover 52. Both the first sub-sliding cover 51 and the second sub-sliding cover 52 are connected to the first driving mechanism 4. The first driving mechanism 4 is used to drive the first sub-sliding cover 51 and the second sub-sliding cover 52 to switch positions between blocking the light-transmitting area 111 and being housed in the storage part 1.

[0120] 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 first sub-sliding cover 51 and the second sub-sliding cover 52 block the light-transmitting area 111, the first sub-sliding cover 51 and the second sub-sliding cover 52 move towards each other, and then rise to the area where the light-transmitting area 111 is located after moving directly below the light-transmitting area 111, so as to block the light-transmitting area 111.

[0121] Based on the above description, the first limiting component is used to limit the horizontal movement of the first sub-sliding cover 51, and the first adjusting component 413 is used to adjust the horizontal movement distance of the first sub-sliding cover 51, thereby achieving the accuracy of the position of the first sub-sliding cover 51 after horizontal movement. To ensure the accuracy of the position of the second sub-sliding cover 52 after horizontal movement, the first driving mechanism 4 also includes a third limiting component and a third adjusting component 415. The third limiting component is fixed inside the storage part 1 and is used to limit the horizontal movement of the second sub-sliding cover 52. The third adjusting component 415 is connected to the second limiting component and is used to adjust the horizontal movement distance of the second sub-sliding cover 52. Thus, the accuracy of the position of the second sub-sliding cover 52 after horizontal movement can be achieved through the third limiting component and the third adjusting component 415.

[0122] The structure of the third limiting component, the structure of the third adjusting component 415, and the positional relationship between the third limiting component and the third adjusting component 415 can all be referred to the structure of the first limiting component, the structure of the first adjusting component 413, and the positional relationship between the first adjusting component 413 and the first limiting component in the above embodiments. The embodiments of this application will not elaborate on these aspects.

[0123] For example, such as Figure 5 or Figure 11 As shown, the third limiting component includes a third blocking member 114 and a third limiting member 411. The third blocking member 114 is fixed inside the storage part 1, and the third limiting member 411 is fixedly connected to the third blocking member 114 or the second sub-sliding cover 52. The third blocking member 114 and the third limiting member 411 cooperate to limit the horizontal movement of the second sub-sliding cover 52.

[0124] In summary, by ensuring the accuracy of the position of the first sub-slider 51 and the second sub-slider 52 after translation, it can be guaranteed that the first sub-slider 51 and the second sub-slider 52 are located directly below the light-transmitting area 111.

[0125] In this embodiment, to achieve the translation and lifting of the first sub-sliding cover 51, the first driving mechanism 4 includes the first translation component (guide rod 401, first support plate component 402, first driving component 403) and the first lifting component 404 as described in the above embodiments, and as follows: Figure 5 or Figure 11 As shown, the first sub-sliding cover 51 is located above the first support plate assembly 402, and both the first support plate assembly 402 and the first sub-sliding cover 51 are connected to the first lifting assembly 404. In this way, the translation and lifting of the first sub-sliding cover 51 can be achieved through the first support plate assembly 402 and the first lifting assembly 404. Simultaneously, the horizontal movement distance and lifting height of the first sub-sliding cover 51 can be adjusted through the first adjusting assembly 413 and the second adjusting assembly 414 to ensure the accuracy of the position of the first sub-sliding cover 51 after translation and lifting.

[0126] In order to achieve the translation and lifting of the second sub-sliding cover 52, such as Figure 5 or Figure 11 As shown, the first drive mechanism 4 also includes a second translation component (a second pallet assembly 405, a second drive component 406, and a second lifting component 407). The second pallet assembly 405 is slidably limited on the guide rod 401. The second drive component 406 is fixed inside the storage portion 1 and connected to the second pallet assembly 405. The second drive component 406 is used to drive the second pallet assembly 405 to slide along the guide rod 401. The second sub-sliding cover 52 is located above the second pallet assembly 405, and both the second pallet assembly 405 and the second sub-sliding cover 52 are connected to the second lifting component 407. The second lifting component 405 is used to drive the second sub-sliding cover 52 to rise and fall, so as to switch its position between being housed in the storage portion 1 and blocking the area where the light-transmitting area 111 is located. In this way, the translation and lifting of the second sub-sliding cover 52 can be realized through the cooperation of the second pallet assembly 405, the second drive component 406, and the second lifting component 407.

[0127] The structure of the second pallet assembly 405 is the same as or similar to that of the first pallet assembly 402, the structure of the second drive assembly 406 is the same as or similar to that of the first drive assembly 403, and the structure of the second lifting assembly 407 is the same as or similar to that of the first lifting assembly 404. The embodiments of this application will not be described in detail here.

[0128] It should be noted that when there are multiple guide rods 401, to avoid over-positioning of the second pallet assembly 405 on the two guide rods 401, the first guide rod 4011 of the two guide rods 401 radially limits the second pallet assembly 405, and the second guide rod 4012 of the two guide rods 401 limits the second pallet assembly 405 circumferentially along the first guide rod 4011. Furthermore, since the longer the guide rod 401, the greater the distance caused by the parallel error between the two parallel guide rods 401, each guide rod 401 includes two sections. The first pallet assembly 402 is fitted onto the first section of the guide rod 401, and the second pallet assembly 405 is fitted onto the second section of the guide rod 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 simplifying the processing.

[0129] In this embodiment, the second sub-sliding cover 52 can be adjusted in the same or similar manner as the method for controlling the accuracy of the lifting height of the sliding cover 5 described in the above embodiments.

[0130] For example, the first drive mechanism 4 includes a fourth limiting component and a fourth adjusting component. The fourth limiting component is fixed inside the storage part 1 and is used to limit the horizontal movement of the second tray assembly 405. The fourth adjusting component 416 is connected to the fourth limiting component and is used to adjust the sliding distance of the second tray assembly 405. In this way, through the cooperation of the fourth adjusting component 416 and the fourth limiting component, the sliding distance of the second tray assembly 405 is adjusted, thereby adjusting the rotation angle of the second rotating lifting member and ensuring the accuracy of the lifting height of the second sub-sliding cover 52.

[0131] The structure of the fourth limiting component is the same as or similar to that of the second limiting component described in the above embodiments, and this application does not limit it.

[0132] For example, such as Figure 5 As shown, the fourth limiting component includes a fourth blocking member 115 and a fourth limiting member 412. The fourth blocking member 115 is fixed inside the storage part 1, and the fourth limiting member 412 is fixedly connected to the fourth blocking member 115. The fourth blocking member 115 and the fourth limiting member 412 cooperate to adjust the horizontal movement of the second tray assembly 405, thereby adjusting the lifting height of the second sub-sliding cover 52.

[0133] The fourth limiting member 412 is L-shaped. One side of the fourth limiting member 412 is fixedly connected to the upper or lower surface of the second tray assembly 405, while the other side of the fourth limiting member 412 engages with the fourth blocking member 115. Of course, the fourth limiting member 412 can also have other structures, and this embodiment does not limit its application.

[0134] 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.

[0135] In addition, the second translation assembly 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.

[0136] In the embodiments of this application, such as Figure 12As 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.

[0137] Optionally, such as Figure 13 As shown, the projection screen 3 includes a screen 31, a roll-up assembly 32, and a third 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 third 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, and 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 third lifting assembly 33, and the third lifting assembly 33 can drive the second side of the screen to rise to control the screen 31 to unfold.

[0138] The structures of the curling component 32 and the third lifting component 33 can be referenced from related technologies, and are not limited in this embodiment. For example, the third lifting component 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.

[0139] 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.

[0140] The specific positions of the cover plate 7 blocking the opening 121 and the position of the cover plate 7 when it is housed in the second receiving part 12 can be referred to the positions of the sliding cover 5 blocking the light-transmitting area 111 and the position of the cover plate 5 when it is housed in the receiving part 1 as described in the above embodiments. This application embodiment does not limit this.

[0141] 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.

[0142] 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.

[0143] 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.

[0144] 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.

[0145] In this embodiment of the application, the laser projection device includes, in addition to the laser projection host 2 and the projection screen 3, such as Figure 15 As shown, 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.

[0146] In some embodiments, the storage portion 1 and the second accommodating portion 12 form a T-shaped storage portion 1, and the length of the storage portion 1 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.

[0147] In other embodiments, the storage portion 1 and the second accommodating portion 12 form a rectangular overall structure. The length of the storage portion 1 is equal to the length of the second accommodating portion 12. In this case, the audio equipment 8 included in the laser projection device is located within the storage portion 1.

[0148] Optionally, such as Figure 16As 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, so as to obtain the storage part 1 with a first cavity and the second accommodating part 12 with a second cavity.

[0149] 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 of the storage section 1. A first mounting cavity is formed between the first partition plate 116 and the adjacent side plate of the storage section 1. A second mounting cavity is formed between the second partition plate 117 and the adjacent side plate of the second accommodating section 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 has a shelf plate 118. At this time, as... Figure 15 As 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.

[0150] 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.

[0151] 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.

[0152] 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; Sliding cover; A first driving mechanism, used to drive the sliding cover to switch between blocking the light-transmitting area and being housed within the storage section, includes: The first limiting component is fixed inside the storage part and is used to limit the horizontal movement of the sliding cover; The first adjustment component is connected to the first limiting component and is used to adjust the horizontal movement distance of the sliding cover; The first translation component is fixed inside the storage section; The first lifting assembly includes a plurality of first rotating lifting members; each of the first rotating lifting members is rotatably connected at both ends to the first translation assembly and the sliding cover, respectively; the first translation assembly can cause the plurality of first rotating lifting members to rotate, so as to cause the sliding cover to rise and fall. The second adjustment component is fixed to the first translation component and is used to adjust the rotation angle of the plurality of the first rotating lifting components.

2. The laser projection device of claim 1, wherein, The first limiting component includes a first blocking member and a first limiting member; The first blocking member is fixed inside the storage part, and the first limiting member is fixedly connected to the first blocking member or the sliding cover. The first blocking member cooperates with the first limiting member to limit the horizontal movement of the sliding cover.

3. The laser projection device of claim 2, wherein, The first adjustment component is fixed on the side of the first limiting member facing the first blocking member, and the first adjustment component is used to adjust the distance between the first limiting member and the first blocking member.

4. The laser projection device of claim 2, wherein, The first adjustment component is fixed on the side of the first limiting member facing away from the first blocking member, and the first adjustment component is used to adjust the horizontal movement distance of the sliding cover.

5. The laser projection device of any one of claims 1-4, wherein, The first adjustment assembly includes a first side plate, a second side plate, and a connecting rod; The first side plate and the second side plate are arranged opposite to each other, and both the first side plate and the second side plate are connected to the connecting rod. The distance between the first side plate and the second side plate is adjustable.

6. The laser projection device of claim 1, wherein, The first translation component includes a guide rod, a first support plate assembly, and a first drive assembly; The guide rod is fixed inside the storage part, the first pallet assembly is slidably limited on the guide rod, the first drive assembly is fixed inside the storage part and connected to the first pallet assembly, the first drive assembly is used to drive the first pallet assembly to slide along the guide rod, the sliding cover is located above the first pallet assembly, and both ends of each first rotating lifting member are rotatably connected to the sliding cover and the first pallet assembly respectively.

7. The laser projection device of claim 6, wherein, The first drive mechanism also includes a second limiting component; The second limiting component is fixed inside the storage part and is used to limit the horizontal movement of the first tray assembly. The second adjusting component is connected to the second limiting component and is used to adjust the sliding distance of the first tray assembly.

8. The laser projection device of claim 7, wherein, The sliding cover includes a first sub-sliding cover and a second sub-sliding cover, and the first driving mechanism further includes a third limiting component and a third adjusting component; Both the first sub-sliding cover and the second sub-sliding cover are connected to the first driving mechanism. The first driving mechanism is used to drive the first sub-sliding cover and the second sub-sliding cover to switch positions between blocking the light-transmitting area and being housed in the storage part. The first limiting component is used to limit the horizontal movement of the first sub-sliding cover, and the first adjusting component is used to adjust the horizontal movement distance of the first sub-sliding cover; The third limiting component is fixed inside the storage part. The third limiting component is used to limit the horizontal movement of the second sub-sliding cover. The third adjusting component is connected to the second limiting component and is used to adjust the horizontal movement distance of the second sub-sliding cover.

Images