Projection equipment and projection system

Abstract

The utility model provides projection equipment and a projection system, and relates to the technical field of projection, the projection system comprises the projection equipment, and the projection equipment comprises a projection host; the rotating assembly comprises a first driving part and a rotating part which are in transmission connection, and the projection host is connected with the rotating part; the first driving part is used for driving the rotating part to rotate so as to drive the projection host to rotate; the telescopic assembly comprises a second driving part and a moving part which are in transmission connection, and the rotating assembly is connected with the moving part; the second driving part is used for driving the moving part to move so as to drive the rotating assembly to move. According to the projection equipment and the projection system provided by the invention, the position of the projection host is convenient to adjust, so that the projection effect of the projection host on the projection screen is ensured.

Description

Technical Field

[0001] The present application relates to the field of projection technology, and in particular to a projection device and a projection system. Background Art

[0002] Projection equipment is increasingly used in people's work and life, and the projection host of the projection equipment can project a relatively large-sized projection picture on the projection screen.

[0003] In the prior art, in order to ensure the normal display of the projection image, the projection host and the projection screen need to maintain a suitable positional relationship, for example, the distance between the projection host and the projection screen needs to be kept moderate, and the projection host needs to be placed upright.

[0004] However, during use of the existing projection equipment, the position of the projection host is inconvenient to adjust, which affects the projection effect of the projection host on the projection screen. Utility Model Content

[0005] In view of the above problems, the present application provides a projection device and a projection system, which are convenient for adjusting the position of the projection host, thereby ensuring the projection effect of the projection host on the projection screen.

[0006] In order to achieve the above objectives, this application provides the following technical solutions:

[0007] A first aspect of the present application provides a projection device, comprising:

[0008] Projection host;

[0009] The rotating assembly includes a first driving member and a rotating member which are in transmission connection, and the projection host is connected to the rotating member; the first driving member is used to drive the rotating member to rotate, so as to drive the projection host to rotate;

[0010] The telescopic component comprises a second driving member and a moving member which are transmission-connected, and the rotating component is connected to the moving member; the second driving member is used for driving the moving member to move, so as to drive the rotating component to move.

[0011] The beneficial effect of the present application is that in the projection device provided by the present application, the rotating component can automatically drive the projection host to rotate relative to the projection screen, and the telescopic component can automatically drive the projection host to telescope relative to the projection screen. Thus, through the mutual cooperation of the rotating component and the telescopic component, it is convenient to adjust the position of the projection host relative to the projection screen, thereby ensuring the projection effect of the projection host on the projection screen.

[0012] In a possible implementation, the rotating assembly further includes a first mounting member, the first mounting member is connected to the moving member; the first driving member is connected to the first mounting member, and the rotating member is rotatably mounted on the first mounting member.

[0013] In a possible implementation, the rotating assembly further includes a thrust bearing;

[0014] The projection host is directly connected to the rotating member, and the thrust bearing is arranged between the projection host and the first mounting member; or, the rotating assembly also includes a support plate, the support plate is connected to the rotating member, the projection host is installed on the plate surface of the support plate away from the first mounting member, and the thrust bearing is arranged between the first mounting member and the support plate.

[0015] In a possible implementation, the transmission structure between the first driving member and the rotating member is one of a rack and pinion transmission, a worm gear transmission and a bevel gear transmission.

[0016] In a possible implementation manner, the first driving member has a first rotating shaft, and the extension directions of the first rotating shaft and the rotating shaft of the rotating member are perpendicular to each other.

[0017] In a possible implementation, the telescopic assembly includes a second mounting member, a second driving member is connected to the second mounting member, and the movable member is slidably mounted on the second mounting member; the second driving member is used to drive the movable member to slide relative to the second mounting member.

[0018] In a possible implementation, the second driving member is a screw motor assembly, the second driving member has a screw and a slider that are transmission-connected, the extension direction of the screw is consistent with the sliding direction of the moving member, and the slider is connected to the moving member.

[0019] In a possible implementation, the second driving member has a telescopic rod, the telescopic direction of the telescopic rod is consistent with the sliding direction of the moving member, and the telescopic rod is connected to the moving member.

[0020] In a possible implementation, the telescopic assembly further includes an auxiliary support member, which is slidably mounted on the second mounting member, and a sliding direction of the auxiliary support member is consistent with a sliding direction of the moving member; and the rotating assembly is connected to the auxiliary support member.

[0021] In a possible implementation, the second mounting member has an accommodating cavity inside, and at least part of the second driving member and the moving member are located in the accommodating cavity.

[0022] In a possible implementation manner, the bottom of the projection host has a support surface, and the rotation plane of the rotating member is parallel to the support surface of the projection host.

[0023] In a possible implementation manner, the moving direction of the rotating component is consistent with the projection direction of the projection host.

[0024] A second aspect of the present application provides a projection device, comprising:

[0025] Projection host;

[0026] The rotating assembly is used to provide a first driving member and a rotating member in transmission connection, and the projection host is used to be connected to the rotating member; the first driving member is used to drive the rotating member to rotate, so as to drive the projection host to rotate;

[0027] The telescopic component is used to provide a second driving member and a moving member in transmission connection, and the rotating component is used to be connected to the moving member; the second driving member is used to drive the moving member to move, so as to drive the rotating component to move.

[0028] A third aspect of the present application provides a projection system, comprising a projection screen and a projection device in any of the above implementations, wherein the projection device is used to project a projection picture onto the projection screen.

[0029] When the projection device provided by the present application is in use, when the projection host is placed crookedly, resulting in deformation of the projection picture, the rotating component can automatically drive the projection host to rotate relative to the projection screen, so that the position of the projection host is corrected and the projection picture can be normally displayed on the projection screen. When the distance between the projection host and the projection screen is too large or too small, resulting in the projection picture being too large or too small, the telescopic component can automatically drive the projection host to move relative to the projection screen, so that the projection host and the projection screen can maintain a suitable distance, thereby ensuring the normal display of the projection picture. Therefore, the projection device provided by the present application can automatically drive the projection host to rotate and telescope relative to the projection screen through the mutual cooperation of the rotating component and the telescopic component, so as to facilitate the adjustment of the position of the projection host relative to the projection screen, thereby ensuring the projection effect of the projection host on the projection screen.

[0030] The structure of the present application and its other inventive objectives and beneficial effects will be more clearly understood through the description of the specific implementation methods in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1 A first stereoscopic diagram of a projection device provided in an embodiment of the present application;

[0033] Figure 2 for Figure 1 The view after removing the projection host;

[0034] Figure 3 for Figure 2 View after removing the support plate;

[0035] Figure 4 for Figure 3 A structural view of the remaining telescopic assembly after the rotating assembly is removed;

[0036] Figure 5 for Figure 3 A structural view of the remaining rotating assembly after the telescopic assembly is removed;

[0037] Figure 6 A three-dimensional diagram of a rotating assembly provided in an embodiment of the present application from another perspective;

[0038] Figure 7 for Figure 6 A top view of

[0039] Figure 8 for Figure 7 Sectional view at AA in the middle;

[0040] Fig. 9 A second stereoscopic image of the projection device provided in an embodiment of the present application;

[0041] Fig.10 Another transmission structure diagram between the first driving member and the rotating member provided in an embodiment of the present application;

[0042] Fig.11 A diagram of another transmission structure between the first driving member and the rotating member provided in an embodiment of the present application;

[0043] Fig.12 A schematic diagram of the projection device provided in an embodiment of the present application when projecting onto a projection screen.

[0044] Description of reference numerals:

[0045] 100-projection host; 110-support surface;

[0046] 120-projection lens; 200-rotation assembly;

[0047] 210-first driving member; 211-first rotating shaft;

[0048] 220-rotating member; 230-first mounting member;

[0049] 240-thrust bearing; 250-support plate;

[0050] 251-limiting hole; 260-rotating bearing;

[0051] 270-guide rail; 280-limit rod;

[0052] 291-gear member; 292-rack;

[0053] 293-worm wheel; 294-worm;

[0054] 295-bevel gear; 300-telescopic assembly;

[0055] 310-second driving member; 311-screw rod;

[0056] 312-slider; 320-moving member;

[0057] 330-second mounting member; 331-accommodating cavity;

[0058] 340- auxiliary support member; 350- slide rod;

[0059] 400-projection screen; 500-laser light;

[0060] 600-movement direction; 700-rotation direction. DETAILED DESCRIPTION

[0061] During the use of existing projection equipment, the projection host and the projection screen need to maintain a suitable positional relationship. For example, the distance between the projection host and the projection screen needs to be kept moderate. If the distance between the projection host and the projection screen is too large, the projection image on the projection screen will appear small; if the distance between the projection host and the projection screen is too small, the projection image on the projection screen will appear large and exceed the projection screen. In addition, the projection host also needs to be placed upright. If the projection host is placed crookedly, the projection light will also be crooked when projected onto the projection screen, and the projection image will be deformed. If the position of the existing projection host changes unexpectedly, the user needs to manually adjust the position of the projection host. The manual adjustment process is inconvenient and affects the projection effect of the projection host on the projection screen.

[0062] Based on the above problems, the embodiment of the present application provides a projection device and a projection system, wherein the projection system has a projection device, and the projection device includes a projection host, a rotating component, and a telescopic component, wherein the rotating component includes a first driving member and a rotating member connected by transmission, and the projection host is connected to the rotating member; the first driving member is used to drive the rotating member to rotate, so as to drive the projection host to rotate; and the telescopic component includes a second driving member and a moving member connected by transmission, and the rotating component is connected to the moving member; the second driving member is used to drive the moving member to move, so as to drive the rotating component to move. Thus, through the mutual cooperation of the rotating component and the telescopic component, the projection host can be automatically driven to telescope and rotate relative to the projection screen, so as to facilitate the adjustment of the position of the projection host, thereby ensuring the projection effect of the projection host on the projection screen.

[0063] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0064] The following specific embodiments are used to describe in detail the technical solution of the present application and how the technical solution of the present application solves the above technical problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

[0065] The following combination Figures 1 to 12 , the structure of the projection device provided in the embodiment of the present application is described in detail.

[0066] The projection device provided in the embodiment of the present application includes:

[0067] like Figures 1 to 6 As shown, the projection device provided by the present application includes:

[0068] The projection host 100; the housing of the projection host 100 has a cavity inside, and various optical components of the projection host 100 are located in the cavity, and the laser light 500 can be transmitted between these optical components; in addition, Figure 1 and Fig.12 As shown, the projection lens 120 of the projection host 100 is exposed on the housing surface, and the laser light 500 can eventually pass through the projection lens 120 and be projected onto the projection screen 400 .

[0069] Rotating assembly 200, such as Figure 1 and Figure 6 As shown, the rotating assembly 200 includes a first driving member 210 and a rotating member 220 which are in transmission connection, and the projection host 100 is connected to the rotating member 220; the first driving member 210 is used to drive the rotating member 220 to rotate, so as to drive the projection host 100 to rotate. Therefore, after the projection host 100 is installed on the rotating assembly 200, the rotating assembly 200 can drive the projection host 100 to rotate relative to the projection screen 400.

[0070] Telescopic assembly 300, such as Figure 3 and Figure 4As shown, the telescopic assembly 300 includes a second driving member 310 and a moving member 320 that are transmission-connected, and the rotating assembly 200 is connected to the moving member 320; the second driving member 310 is used to drive the moving member 320 to move, so as to drive the rotating assembly 200 to move. Therefore, after the rotating assembly 200 is installed on the telescopic assembly 300, the telescopic assembly 300 can drive the rotating assembly 200 to telescope relative to the projection screen 400, and then drive the projection host 100 to telescope relative to the projection screen 400.

[0071] Thus, when the projection host 100 is tilted, causing the projection image to be deformed, the rotating assembly 200 can automatically drive the projection host 100 to rotate relative to the projection screen 400, so that the projection host 100 is positioned correctly and the projection image can be normally displayed on the projection screen 400. When the distance between the projection host 100 and the projection screen 400 is too large or too small, causing the projection image to be too large or too small, the telescopic assembly 300 can automatically drive the projection host 100 to move relative to the projection screen 400, so that the projection host 100 and the projection screen 400 can maintain a suitable distance, thereby ensuring the normal display of the projection image.

[0072] Therefore, the projection device provided in the present application can automatically drive the projection host 100 to rotate and telescope relative to the projection screen 400 through the mutual cooperation of the rotating component 200 and the telescopic component 300, so as to facilitate the adjustment of the position of the projection host 100 relative to the projection screen 400, thereby ensuring the projection effect of the projection host 100 on the projection screen 400.

[0073] It should be noted that the projection device provided by the present application has both automatic retractable function and automatic rotation function. The automatic retractable function can solve the pain point problem of the projection host protruding from the cabinet. For example, when the projection host 100 is not in use, the projection host 100 can be retracted into the cabinet to save space. In addition, the automatic rotation function of the projection device can also be combined with the existing geometric correction function. For example, when the projection host 100 is hit and the host displacement problem and the screen offset problem occur, the projection screen can be adjusted by the automatic rotation function. At the same time, the geometric correction function of the projection host 100 can also be used to further adjust and correct the position of the projection screen to ensure the display effect of the projection screen on the projection screen 400.

[0074] In addition, the projection host 100 can be detachably mounted on the rotating assembly 200 , so that projection hosts 100 of different sizes and models can be installed on the rotating assembly 200 according to different needs of users.

[0075] In the embodiments of the present application, Figures 3 to 6As shown, the rotating assembly 200 further includes a first mounting member 230, which is connected to the moving member 320; the first driving member 210 is connected to the first mounting member 230, and the rotating member 220 is rotatably mounted on the first mounting member 230. The existence of the first mounting member 230 can provide mounting support for other components of the rotating assembly 200; when the moving member 320 can drive the first mounting member 230 to move, it can then drive the rotating assembly 200 to move. Specifically, the first mounting member 230 can be a thin-walled shell.

[0076] Further, such as Figure 2 and Figure 3 As shown, the rotating assembly 200 further includes a thrust bearing 240, and the thrust bearing 240 assembly can withstand the load in the direction of gravity; in a specific embodiment, as Fig. 9 As shown, the projection host 100 is directly connected to the rotating member 220, and the thrust bearing 240 is arranged between the projection host 100 and the first mounting member 230, so that part of the load formed by the projection host 100 can be transmitted to the first mounting member 230 through the thrust bearing 240, thereby reducing the load on the rotating member 220, so that the rotating member 220 can drive the projection host 100 to rotate more stably.

[0077] In another specific implementation, Figure 7 and Figure 8 As shown, the rotating assembly 200 further includes a support plate 250, which is connected to the rotating member 220. The projection host 100 is mounted on the plate surface of the support plate 250 on the side away from the first mounting member 230, and the thrust bearing 240 is arranged between the first mounting member 230 and the support plate 250. The projection host 100 is indirectly connected to the rotating member 220 through the support plate 250. The existence of the support plate 250 facilitates the installation of the projection host 100 on the rotating assembly 200; in addition, part of the load formed by the projection host 100 can be transmitted to the first mounting member 230 through the support plate 250 and the thrust bearing 240 in sequence, thereby reducing the load borne by the rotating member 220.

[0078] In addition, if Figure 2 As shown, a limiting hole 251 is provided on the support plate 250, and a limiting rod 280 is installed on the first mounting member 230, at least part of the limiting rod 280 is passed through the limiting hole 251, and when the support plate 250 rotates relative to the first mounting member 230, the limiting rod 280 can abut against the hole wall of the limiting hole 251 to limit the further rotation of the support plate 250.

[0079] In addition, when the thrust bearing 240 is disposed between the projection host 100 and the first mounting member 230, a ball groove may be provided at the bottom of the projection host 100, and the ball groove may play a guiding role, and the ball of the thrust bearing 240 may roll in the ball groove, and form an embedded avoidance design; specifically, the ball groove may be provided on the bottom iron plate of the projection host 100, or the ball groove may be provided on the bottom shell of the projection host 100. In addition, when the thrust bearing 240 is disposed between the first mounting member 230 and the support plate 250, a ball groove may be provided at the bottom of the support plate 250.

[0080] In addition, if Figure 8 As shown, when the rotating member 220 is rotatably mounted on the first mounting member 230, a rotation bearing 260 may be provided between the rotating member 220 and the first mounting member 230. The existence of the rotation bearing 260 can ensure the stability of the rotating member 220 when rotating on the first mounting member 230. The rotation bearing 260 may be made of nylon, copper or other materials, and may also be a standard bearing.

[0081] For example, Figure 6 and Figure 7 As shown, the transmission structure between the first driving member 210 and the rotating member 220 is a gear rack transmission; specifically, the rack 292 is connected to the first driving member 210, the gear member 291 and the rotating member 220 are integrally arranged, and a guide rail 270 is provided on the first mounting member 230, and the rack 292 is slidably arranged on the guide rail 270; thus, the first driving member 210 can drive the rack 292 to slide on the guide rail 270, and the rack 292 can drive the gear member 291 and the rotating member 220 to rotate during the sliding process.

[0082] For example, Fig.10 As shown, the transmission structure between the first driving member 210 and the rotating member 220 is a worm gear transmission; specifically, the worm 294 is connected to the first driving member 210, and the worm wheel 293 is integrally arranged with the rotating member 220, so that the first driving member 210 can drive the worm 294 to rotate, and the rotation of the worm 294 can drive the worm wheel 293 and the rotating member 220 to rotate.

[0083] For example, Fig.11 As shown, the transmission structure between the first driving member 210 and the rotating member 220 is a bevel gear transmission; specifically, the first bevel gear 295 is connected to the first driving member 210, and the second bevel gear 295 is integrally arranged with the rotating member 220, so that the first driving member 210 can drive the first bevel gear 295 to rotate, and the rotation of the first bevel gear 295 can drive the other bevel gear 295 and the rotating member 220 to rotate.

[0084] In addition, when the first driving member 210 and the rotating member 220 are connected by gear transmission, the gear transmission may include parallel axis gear transmission, intersecting axis gear transmission, and staggered axis gear transmission mechanisms; specifically, the parallel axis gear transmission may be a cylindrical gear transmission; the intersecting axis gear transmission may be one of a spur bevel gear transmission, a curved bevel gear transmission, and a helical bevel gear transmission; the staggered axis gear transmission may be one of a quasi-hyperbolic bevel gear transmission and an arc gear transmission.

[0085] Specifically, Figure 6 and Figure 7 As shown, the first driving member 210 has a first rotating shaft 211, and the extending directions of the first rotating shaft 211 and the rotating shaft of the rotating member 220 are perpendicular to each other. In this way, when the first rotating shaft 211 and the rotating shaft of the rotating member 220 are perpendicular to each other, it is convenient to install the first driving member 210 and the rotating member 220. Specifically, the first driving member 210 can be a driving motor, and the rotating member 220 can be a rotating block.

[0086] In the embodiments of the present application, Figure 4 As shown, the telescopic assembly 300 includes a second mounting member 330, a second driving member 310 is connected to the second mounting member 330, and a moving member 320 is slidably mounted on the second mounting member 330; the second driving member 310 is used to drive the moving member 320 to slide relative to the second mounting member 330. In this way, the second mounting member 330 can provide mounting support for other components on the telescopic assembly 300. Specifically, the second mounting member 330 can be a thin-walled shell.

[0087] In a specific embodiment, Figure 4 As shown, the second driving member 310 is a screw motor assembly, and the second driving member 310 has a screw 311 and a slider 312 that are transmission-connected, the extension direction of the screw 311 is consistent with the sliding direction of the moving member 320, and the slider 312 is connected to the moving member 320. In this way, when the motor drives the screw 311 to rotate, the slider 312 will move along the extension direction of the screw 311, thereby driving the moving member 320 to slide on the second mounting member 330, and then driving the rotating assembly 200 to extend and retract. The screw motor assembly is low in cost and easy to assemble.

[0088] In another specific embodiment, the second driving member 310 has a telescopic rod, the telescopic direction of the telescopic rod is consistent with the sliding direction of the moving member 320, and the telescopic rod is connected to the moving member 320. In this way, the telescopic rod of the second driving member 310 can directly drive the moving member 320 to slide on the second mounting member 330, and then drive the rotating assembly 200 to extend and retract. Specifically, the second driving member 310 is a linear motor.

[0089] In addition, if Figure 4As shown, the telescopic assembly 300 also includes an auxiliary support member 340, which is slidably mounted on the second mounting member 330, and the sliding direction of the auxiliary support member 340 is consistent with the sliding direction of the moving member 320; the rotating assembly 200 is connected to the auxiliary support member 340; the auxiliary support member 340 can share the load on the moving member 320 to ensure the smooth movement of the moving member 320. Specifically, the auxiliary support member 340 can be a block, and the auxiliary support member 340 is provided on both sides of the second mounting member 330 along the sliding direction perpendicular to the auxiliary support member 340; in addition, the second mounting member 330 is also provided with a slide bar 350, and the auxiliary support member 340 and the moving member 320 are both slidably arranged on the slide bar 350. Therefore, when the second driving member 310 drives the moving member 320 to slide relative to the slide bar 350, the moving member 320 can drive the rotating assembly 200 to move, and the rotating assembly 200 can drive the auxiliary support member 340 to slide relative to the slide bar 350.

[0090] For example, Figure 4 As shown, the second mounting member 330 has a receiving cavity 331 inside, and at least part of the second driving member 310 and the moving member 320 are located in the receiving cavity 331. In this way, the existence of the receiving cavity 331 facilitates the installation of the second driving member 310 and the moving member 320, and can provide protection for the second driving member 310 and the moving member 320.

[0091] For example, Figure 1 and Fig. 9 As shown, the bottom of the projection host 100 has a support surface 110, and the rotation plane of the rotating member 220 is parallel to the support surface 110 of the projection host 100. The figure shows the rotation direction 700 of the projection host 100, and the rotating member 220 can drive the projection host 100 to rotate clockwise or counterclockwise. The existence of the support surface 110 facilitates the installation and positioning of the projection host 100.

[0092] For example, Fig.12 As shown, the moving direction of the rotating component 200 is consistent with the projection direction of the projection host 100. When the rotating component 200 moves, it can also drive the projection host 100 to move. The figure shows the moving direction 600 of the projection host 100. The projection host 100 can move in the direction close to the projection screen 400 or in the direction away from the projection screen 400, so as to adapt to different adjustment needs.

[0093] On the basis of the above embodiments, the present application further provides a projection system, including a projection host 100, a rotating assembly 200 and a telescopic assembly 300, wherein the rotating assembly 200 is used to provide a first driving member 210 and a rotating member 220 connected in transmission, and the projection host 100 is used to be connected to the rotating member 220; the first driving member 210 is used to drive the rotating member 220 to rotate, so as to drive the projection host 100 to rotate; the telescopic assembly 300 is used to provide a second driving member 310 and a moving member 320 connected in transmission, and the rotation assembly 200 is used to be connected to the moving member 320; the second driving member 310 is used to drive the moving member 320 to move, so as to drive the rotation assembly 200 to move. Thus, the mutual cooperation of the rotating assembly 200 and the telescopic assembly 300 can automatically drive the projection host 100 to rotate and telescope relative to the projection screen 400, so as to adjust the position of the projection host 100, and then ensure the projection effect of the projection host 100 on the projection screen 400.

[0094] On the basis of the above embodiments, the present application further provides a projection system, including a projection screen 400 and a projection device in any of the above embodiments, wherein the projection device is used to project a projection picture onto the projection screen 400 .

[0095] Specifically, Figure 1 As shown, the projection device includes a projection host 100, a rotating assembly 200 and a telescopic assembly 300. The telescopic assembly 300 can be installed on a support plane of a mounting carrier, and the support plane can be a mounting plane on a cabinet, or the support plane can also be a wall surface; the rotating assembly 200 is installed on the telescopic assembly 300, and the projection host 100 is installed on the rotating assembly 200. Fig.12 As shown in the figure, a scene diagram when the projection device is projecting on a projection screen 400 is shown. The projection screen 400 is located obliquely above the projection host 100. The projection screen 400 can be set on a flat installation carrier such as a wall to ensure the flatness of the projection screen 400; the laser light 500 reflected by the light component in the projection device can be directed to the projection lens 120, and the laser light 500 directed to the projection lens 120 can pass through the projection lens 120 and form an image on the projection screen 400.

[0096] In the description of this application, it should be noted that the descriptions of the positions such as "top" and "bottom" are relative to Figure 1 With respect to the stereoscopic diagram of the projection device, the positive direction of the Z axis is the “top” orientation, and the negative direction of the Z axis is the “top” orientation, which should not be understood as a limitation to the present application.

[0097] In the description of the present application, it should be understood that, in addition, the terms "including" and "having" and any variations thereof are intended to cover but not exclude inclusion. The orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0098] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

[0099] For ease of explanation, the above description has been made in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or limit the embodiments to the specific forms disclosed above. Based on the above teachings, various modifications and variations can be obtained. The selection and description of the above embodiments are intended to better explain the principles and practical applications, so that those skilled in the art can better use the embodiments and various different variations of the embodiments suitable for specific use considerations.

Claims

1. A projection device, characterized in that: include: Projection host; A rotating assembly, comprising a first driving member and a rotating member in transmission connection, wherein the projection host is connected to the rotating member; The first driving member is used to drive the rotating member to rotate, so as to drive the projection host to rotate; The telescopic assembly comprises a second driving member and a moving member which are transmission-connected, and the rotating assembly is connected to the moving member; the second driving member is used to drive the moving member to move, so as to drive the rotating assembly to move.

2. The projection device according to claim 1, characterized in that: The rotating assembly also includes a first mounting member, which is connected to the moving member; the first driving member is connected to the first mounting member, and the rotating member is rotatably mounted on the first mounting member.

3. The projection device according to claim 2, characterized in that: The rotating assembly also includes a thrust bearing; The projection host is directly connected to the rotating member, and the thrust bearing is arranged between the projection host and the first mounting member; or, the rotating assembly also includes a support plate, the support plate is connected to the rotating member, the projection host is installed on the plate surface of the support plate away from the first mounting member, and the thrust bearing is arranged between the first mounting member and the support plate.

4. The projection device according to any one of claims 1 to 3, characterized in that: The transmission structure between the first driving member and the rotating member is one of a gear rack transmission, a worm gear transmission and a bevel gear transmission; And / or, the first driving member has a first rotating shaft, and the extension direction of the first rotating shaft and the rotating shaft of the rotating member are perpendicular to each other.

5. The projection device according to any one of claims 1 to 3, characterized in that: The telescopic assembly includes a second mounting member, the second driving member is connected to the second mounting member, and the moving member is slidably mounted on the second mounting member; the second driving member is used to drive the moving member to slide relative to the second mounting member.

6. The projection device according to claim 5, characterized in that: The second driving member is a screw motor assembly, the second driving member has a screw and a slider which are transmission-connected, the extension direction of the screw is consistent with the sliding direction of the moving member, and the slider is connected to the moving member; Alternatively, the second driving member has a telescopic rod, the telescopic direction of the telescopic rod is consistent with the sliding direction of the moving member, and the telescopic rod is connected to the moving member.

7. The projection device according to claim 5, characterized in that: The telescopic assembly further comprises an auxiliary support member, the auxiliary support member is slidably mounted on the second mounting member, and the sliding direction of the auxiliary support member is consistent with the sliding direction of the moving member; the rotating assembly is connected to the auxiliary support member; And / or, the second mounting member has an accommodating cavity inside, and at least part of the second driving member and the moving member are located in the accommodating cavity.

8. The projection device according to any one of claims 1 to 3, characterized in that: The bottom of the projection host has a support surface, and the rotation plane of the rotating member is parallel to the support surface of the projection host; And / or, the moving direction of the rotating component is consistent with the projection direction of the projection host.

9. A projection device, characterized in that: include: Projection host; A rotating assembly, used for providing a first driving member and a rotating member in transmission connection, wherein the projection host is used for connecting with the rotating member; The first driving member is used to drive the rotating member to rotate, so as to drive the projection host to rotate; The telescopic component is used to provide a second driving member and a moving member with transmission connection, and the rotating component is used to be connected to the moving member; the second driving member is used to drive the moving member to move, so as to drive the rotating component to move.

10. A projection system, characterized in that: It comprises a projection screen and the projection device according to any one of claims 1 to 9, wherein the projection device is used to project a projection picture onto the projection screen.

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