Rotating mechanism and projection equipment

Abstract

The utility model discloses a rotating mechanism and a projection device, the rotating mechanism is used for bearing a projector, the projector comprises a housing, the rotating mechanism comprises a driving assembly, a rotating chassis assembly and a transmission member, the transmission member is connected between the driving assembly and the rotating chassis assembly, and the driving assembly is fixedly arranged in the housing and is used for driving the transmission member to rotate; the rotating base plate assembly is arranged at the bottom of the shell, and the rotating base plate assembly partially extends into the shell to be clamped into the position, deviating from the rotating center, of the transmission piece so that the transmission piece can drive the rotating base plate assembly to synchronously rotate when rotating. According to the rotating mechanism and the projection equipment provided by the utility model, the azimuth angle of the projector can be automatically adjusted so as to adapt to the requirements of users.

Description

Technical Field

[0001] The utility model relates to the technical field of projection equipment, in particular to a rotating mechanism and projection equipment. Background Art

[0002] Existing projection devices are usually directly fixed at a preset position, but in actual use, there may be scenarios where the azimuth angle of the projection device needs to be automatically adjusted. For example, a projection device with a display screen on the outer shell, the orientation of the display screen depends on the azimuth angle of the projection device, but the azimuth angle of a general projection device needs to be manually adjusted by the user, such as manually turning the projection device so that the display screen on the device faces the user's expected position. However, in actual use, the user's position in the normal use scenario of the projection device is often not fixed, and is generally variable, resulting in the user being unable to observe the display content on the display screen in some positions. Therefore, how to automatically adjust the azimuth angle of the projection device to meet the needs of the user is one of the problems that urgently need to be solved in the intelligent design process of the projection device. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a rotating mechanism and a projection device, which can automatically adjust the azimuth angle of the projector to meet the needs of users.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] In the first aspect, the utility model discloses a rotating mechanism for carrying a projector, wherein the projector comprises a shell, and the rotating mechanism comprises a driving assembly, a rotating chassis assembly and a transmission member, wherein the transmission member is connected between the driving assembly and the rotating chassis assembly, and the driving assembly is fixedly disposed in the shell and is used to drive the transmission member to rotate; the rotating chassis assembly is disposed at the bottom of the shell, and the rotating chassis portion extends into the shell to engage in a position of the transmission member that deviates from the rotation center, so that when the transmission member rotates, it can drive the rotating chassis assembly to rotate synchronously.

[0006] Preferably, a positioning block is provided at the end of the rotating chassis assembly extending into the shell; a positioning groove is formed on the transmission member at a position deviating from the rotation center; and the positioning block is inserted into the positioning groove.

[0007] Preferably, the driving assembly includes a driving motor and an output gear, the driving motor is fixed to the inner wall of the shell, the output gear is connected to the output end of the driving motor, and the transmission member includes a transmission gear, and the output gear and the transmission gear are meshed with each other.

[0008] Preferably, the rotating chassis assembly includes a rotating chassis and a fixed column protruding from the rotating chassis, a through hole is provided at the bottom of the shell, and the fixed column is inserted into the interior of the shell through the through hole from the bottom of the shell; the transmission gear is fixedly connected to the top of the fixed column.

[0009] Preferably, a positioning block, a fastener and a first fixing hole are provided on the top of the fixing column, a positioning groove and a second fixing hole are provided in the axial direction of the transmission gear, the positioning block is inserted into the positioning groove, and the first fixing hole is opposite to the second fixing hole; the fastener passes through the second fixing hole and extends into and is fixed in the first fixing hole to fix the transmission gear to the fixing column.

[0010] Preferably, the rotating mechanism further comprises a retaining spring, a retaining groove is formed on a side wall of the fixing column extending into a section of the interior of the shell, and the retaining spring abuts against an inner wall of the shell and is engaged in the retaining groove.

[0011] Preferably, the rotating chassis assembly further comprises a bearing, the rotating chassis surrounds the fixed column to form a bearing groove, the bearing is arranged in the bearing groove, and the bearing is connected to the bottom of the shell and the bottom of the bearing groove through a ball.

[0012] Preferably, the rotating chassis assembly further includes a gasket, a gasket groove is provided on the rotating chassis, the gasket is arranged in the gasket groove, and the rotating chassis abuts against the bottom of the shell through the gasket.

[0013] Preferably, the fixing column is protrudingly disposed at the center of the rotating chassis, and the through hole is opened at the center of the bottom of the shell, and the axial directions of the transmission gear and the output gear are perpendicular to each other.

[0014] In a second aspect, the utility model discloses a projection device, including a projector and the rotating mechanism described in the first aspect, wherein the projector includes a projector body and a projection bracket, wherein the projector body is rotatably connected to the projection bracket, and the projection bracket includes the shell.

[0015] Compared with the prior art, the beneficial effect of the present invention lies in: the rotating mechanism and projection equipment proposed by the present invention, in which a driving assembly is fixedly arranged on the shell of the projector, the driving assembly drives the transmission member, and further drives the rotating chassis assembly connected to the transmission member, so that the projector can rotate relative to the rotating chassis assembly, thereby realizing automatic adjustment of the azimuth angle of the projector to meet the needs of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a projection device according to a preferred embodiment of the utility model;

[0017] Figure 2 yes Figure 1 A schematic diagram of the internal structure of the housing of the projection device;

[0018] Figure 3 yes Figure 2 The enlarged schematic diagram of point A in the middle;

[0019] Figure 4 yes Figure 1 Schematic diagram of the exploded structure of the rotating mechanism of the projection device;

[0020] Figure 5 yes Figure 4 The enlarged schematic diagram of point B in the middle;

[0021] Figure 6 yes Figure 4 Enlarged schematic diagram of point C in the middle. DETAILED DESCRIPTION

[0022] The following is a detailed description of the implementation of the utility model. It should be emphasized that the following description is only exemplary and is not intended to limit the scope and application of the utility model.

[0023] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. In addition, connection can be used for both fixing and circuit / signal communication.

[0024] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the utility model and simplifying the description, and do not indicate or imply 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 utility model.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0026] like Figure 1As shown, the preferred embodiment of the utility model discloses a rotating mechanism 10 and a projection device, the projection device includes the rotating mechanism 10 and a projector 20, the rotating mechanism 10 is used to carry the projector 20, the projector 20 includes a housing 201, Figures 2 to 6 The rotating mechanism 10 includes a driving assembly 11, a rotating chassis assembly 12 and a transmission member 13. The transmission member 13 is connected between the driving assembly 11 and the rotating chassis assembly 12. The driving assembly 11 is fixedly arranged in the housing 201 and is used to drive the transmission member 13 to rotate. The rotating chassis assembly 12 is arranged at the bottom of the housing 201. The rotating chassis assembly 12 partially extends into the housing 201 to be inserted into the part of the transmission member 13 that deviates from the rotation center, so that when the transmission member 13 rotates, it can drive the rotating chassis assembly 12 to rotate synchronously. The rotation center is the area where the rotation axis of the transmission member 13 passes through the transmission member 13.

[0027] The end of the rotating chassis component 12 extending into the housing 201 is provided with a positioning block 1221; the transmission member 13 is provided with a positioning groove 1311 at a position deviated from the rotation center; the positioning block 1221 is inserted into the positioning groove 1311. That is, the rotation axis of the transmission member 13 does not pass through the positioning groove 1311. In this way, when the transmission member 13 is driven to rotate by the driven component 11, the transmission member 13 can generate an effective torque on the positioning block 1221 through the positioning groove 1311, so that the rotating chassis component 12 can rotate synchronously with the transmission member 13.

[0028] The driving assembly 11 includes a driving motor 111 and an output gear 112. The driving motor 111 is fixed to the inner wall of the housing 201. The transmission member 13 includes a transmission gear 131. The output gear 112 and the transmission gear 131 are meshed with each other. In this embodiment, the axial directions of the output gear 112 and the transmission gear 131 are perpendicular to each other. In other embodiments, the axial directions of the output gear 112 and the transmission gear 131 may not be perpendicular to each other. In this embodiment, the transmission member 13 is the transmission gear 131. The transmission gear 131 has a circularly symmetrical structure, and the rotation center is located at the center of the transmission gear 131.

[0029] The rotating chassis assembly 12 includes a rotating chassis 121 and a fixing column 122 protruding from the rotating chassis 121. A through hole 2011 is provided at the bottom of the housing 201. The fixing column 122 is inserted into the interior of the housing 201 from the bottom of the housing 201 through the through hole 2011; the transmission gear 131 is fixedly connected to the top of the fixing column 122. Preferably, the fixing column 122 is protruding from the center of the rotating chassis 121, and the through hole 2011 is opened at the center of the bottom of the housing 201, so that the rotating chassis assembly 12 is located at the center of the bottom of the housing 201.

[0030] The rotating chassis assembly 12 is fixed to the shell 201 by a retaining spring 123. The retaining spring 123 is located inside the shell 201. The retaining spring 123 clamps a section of the rotating chassis assembly 12 that extends into the shell 201 through the through hole 2011. After the retaining spring 123 clamps the rotating chassis assembly 12, it is partially mounted on the edge of the through hole 2011 on one side of the shell 201, so that the rotating chassis assembly 12 cannot be separated from the shell 201.

[0031] The rotating chassis assembly 12 also includes a bearing 124 and a washer 125. The fixing column 122 has a slot 1224 on the side wall extending into the inner part of the housing 201. When the fixing column 122 is inserted into the inner part of the housing 201 from the bottom of the housing 201 through the through hole 2011, the retaining spring 123 abuts against the inner wall of the housing 201 and is engaged in the slot 1224, thereby pre-fixing the rotating chassis 121 on the housing 201, which is convenient for the subsequent installation of other accessories, such as the installation of the transmission member 13. The slot 1224 is an annular groove. The bearing 124 is arranged between the rotating chassis 121 and the bottom surface of the housing 201. Specifically, the rotating chassis 121 surrounds the fixing column 122 to form a bearing groove 1213. The bearing 124 is arranged in the bearing groove 1213. The bearing 124 is connected to the bottom of the housing 201 and the bottom of the bearing groove 1213 through a ball. The fixing column 122 passes through the center of the bearing 124. A washer groove 1214 is provided on the rotating chassis 121, and the washer groove 1214 is located on the periphery of the bearing groove 1213. The washer 125 is provided in the washer groove 1214, and the rotating chassis 121 is abutted against the bottom of the shell 201 through the washer 125. The washer 125 achieves a supporting function to prevent the shell 201 from tilting relative to the rotating chassis 121, wherein the washer 125 is preferably made of a hard and smooth material.

[0032] A positioning block 1221, a fastener 1222 and a first fixing hole 1223 are provided at the top of the fixing column 122. A positioning groove 1311 and a second fixing hole 1312 are axially provided on the transmission gear 131. The positioning block 1221 is inserted into the positioning groove 1311, and the first fixing hole 1223 is opposite to the second fixing hole 1312. The fastener 1222 passes through the second fixing hole 1312 and extends into and is fixed in the first fixing hole 1223 to fix the transmission gear 131 to the fixing column 122. Specifically, the positioning block 1221 includes two rectangular blocks protruding upward from the top of the fixing column 122, and the distribution of the blocks at the top of the fixing column 122 is a non-circularly symmetrical structure, so that when the driving motor 111 drives the output gear 112 to rotate, and the output gear 112 drives the transmission gear 131 to rotate, the groove wall of the positioning groove 1311 of the transmission gear 131 can transmit the force to the positioning block 1221, so that the projector 20 rotates relative to the rotating chassis assembly 12; the fastener 1222 is a screw, and the first fixing hole 1223 is a threaded hole and is opened between the two blocks; correspondingly, the positioning groove 1311 is a rectangular groove, and the second fixing hole 1312 is a circular through hole formed in the middle of the rectangular groove. After the transmission gear 131 is placed on the top of the pre-fixed fixing column 122, the two clamping blocks on the fixing column 122 are respectively inserted into the rectangular clamping groove of the transmission gear 131, and the screws are passed through the circular through holes on the transmission gear 131 and locked into the threaded holes on the fixing column 122 to fix the transmission gear 131 and the fixing column 122. When the transmission gear 131 is driven by the output gear 112, the rotational torque of the transmission gear 131 can be transmitted to the rotating chassis 121 through the two clamping blocks, driving the rotating chassis 121 to rotate.

[0033] The preferred embodiment of the utility model provides a rotating mechanism 10 and a projection device, wherein the rotating mechanism 10 is connected to the housing 201 of the projector 20, so that the projector 20 can rotate relative to the rotating chassis assembly 12 with the vertical direction as the axis, thereby automatically adjusting the azimuth angle of the projector 20 to meet the needs of the user.

[0034] The housing 201 of the projector 20 connected with the rotating mechanism 10 may be a housing at the bottom of the projector body, or a housing at the bottom of a projection bracket (eg, a projector 20 including a projector body and a projection bracket).

[0035] Furthermore, in this specific embodiment, the projector 20 includes a projector body 21 and a projection bracket 22, the projection bracket 22 is used to support the projector body 21 provided with a display screen 211, and a reflector 221 is provided on the projection bracket 22. The projector body 21 is connected to the projection bracket 22 and can be rotated relative to the projection bracket 22 to switch between a folded posture and an unfolded posture; wherein, in the folded posture, the reflector 221 is opposite to the light sensor 212 of the projector body 21 to change the detection direction of the light sensor 212, and at this time the display screen 211 is facing the detection direction.

[0036] The light sensor 212 may be a depth detection sensor (Time offlight, TOF) disposed on the front face of the projector body 21, or may be a camera disposed on the front face of the projector body 21. In the folded posture, for example, the projector body 21 is rotated to an upright state relative to the projection bracket 22, the light sensor 212 faces the reflector 221, and the display screen 211 faces the front of the projection bracket 22; the reflector 221 uses a metal mirror to reflect the infrared light of TOF or receives ambient light and reflects it to the camera; when the light sensor 212 is TOF, the reflector 221 may also use an infrared reflective film disposed on the surface to reflect the infrared light of TOF.

[0037] The projection bracket 22 further includes a base 222, a bracket 223 and a rotating member 224. The bracket 223 is fixed to the base 222. The reflector 221 is disposed on the base 222 and / or the bracket 223. The rotating member 224 is rotatably connected to the bracket 223. The rotating member 224 is used to connect the projector body 21 so that the projector body 21 can rotate relative to the bracket 223 along with the rotating member 224, and the axial direction of the rotating member 224 relative to the bracket 223 is parallel to the reflective surface of the reflector 221. In this specific embodiment, the base 222 serves as the housing 201 of the projector 20 connected to the rotating mechanism 10.

[0038] In this embodiment, the bracket 223 includes a bracket arm 2231 and a connecting arm 2232, the bracket arm 2231 is connected to the base 222, the rotating member 224 is rotatably connected to the bracket arm 2231, and the connecting arm 2232 is connected to the side of the bracket arm 2231 away from the base 222. The reflector 221 includes a second reflector, which is arranged on a side of the connecting arm 2232 close to the base 222, and the reflective surface of the second reflector is arranged to face downward. Further, the side of the connecting arm 2232 facing the projector body 21 is an inclined surface 22321, and the inclined surface 22321 is a reflective surface as a whole to form the second reflector, or, only at the position corresponding to the light sensor 212 (TOF or camera) on the front end surface of the projector body 21, it is a reflective surface to form the second reflector.

[0039] In other embodiments, the reflector 221 may include a first reflector, which is disposed on the top of the base 222, and the reflective surface of the first reflector is tilted upward. Specifically, the reflective surface of the first reflector is disposed at an angle of 45° to the bottom surface of the base 222.

[0040] In which, when the bracket 223 includes a connecting arm 2232, the reflector 221 may only include a first reflector arranged on the top of the base 222, or only include a second reflector arranged on a side of the connecting arm 2232 close to the base 222, or may include both the first reflector and the second reflector.

[0041] In some embodiments, the reflector 221 is detachably mounted on the base 222 and / or the bracket 223 . For example, the first reflector is detachably disposed on the top of the base 222 , and the second reflector is detachably disposed on a side of the connecting arm 2232 close to the base 222 .

[0042] With the help of the reflective element 221, the projector body 21 can detect the spatial information in front of the projection bracket 22 through the light sensor 212 (TOF or camera) even in the upright folded posture; wherein, when the projector body 21 is in the upright folded posture, the propagation direction of the infrared light of the TOF reflected by the reflective element 221 or the direction of the ambient light received by the camera through the reflective element 221 is consistent with the orientation of the display screen 211, thereby further being able to determine through TOF or the camera whether the user is at the position where the display screen 211 is facing.

[0043] Based on the fact that TOF or a camera can be used to determine whether the user is at the position where the display screen 211 is facing, a processor (such as a control chip) is further provided in the projector body 21, and the processor is electrically connected to the light sensor 212 (TOF or camera) and the drive motor 111 at the same time. The processor obtains the position of the user in the depth detection image or the captured image detected by the TOF or camera, determines the orientation (left or right) relative to the vertical center line of the depth detection image or the captured image, and then outputs an instruction to the drive motor 111 to gradually rotate the projector body 21 in the above orientation direction (left or right) until the user is at the vertical center position of the depth detection image or the captured image, so as to ensure that the display screen 211 is facing the user. This function can be run in real time and follow the user's movement in real time; or it can be executed after the user triggers the instruction through voice, remote control buttons, etc., so that the user is in the middle of the depth detection image or the captured image.

[0044] In this specific embodiment, a display screen 211 is provided on the top surface of the projector body 21. When the projector body 21 is erected, the display screen 211 faces forward. A reflector 221 is provided on the projection bracket 22 to cooperate with the depth detection module (TOF) or camera on the front face of the projector body 21, so that when the projector body 21 is erected, the depth detection module (TOF) or camera on the front face can also detect the depth information or image information of the front environment; an automatic rotating mechanism 10 is provided on the projection bracket 22, and the rotating mechanism 10 is driven by a driving motor 111, and can automatically rotate according to the user position detected by the TOF or camera, so that the user is always located in the center of the TOF or camera detection area, and the display screen 211 can always face the user. Therefore, this specific embodiment provides a projection device and a projection bracket that can automatically face the user position, so that the user can easily see the content on the display screen on the projector body in different directions relative to the projection device, thereby improving the user experience.

[0045] The background section of the utility model may contain background information about the problem or environment of the utility model, rather than describing the prior art by others. Therefore, the content contained in the background technology section is not an admission of the applicant to the prior art.

[0046] The above content is a further detailed description of the utility model in combination with specific / preferred embodiments, and it cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, it can also make several substitutions or modifications to these described embodiments, and these substitutions or modifications should be regarded as belonging to the protection scope of the utility model. In the description of this specification, the description of the reference terms "an embodiment", "some embodiments", "preferred embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily target the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, in the absence of mutual contradiction, the technical personnel in this field can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples. Although the embodiments of the present invention and its advantages have been described in detail, it should be understood that various changes, substitutions and alterations can be made herein without departing from the scope defined by the appended claims.

Claims

1. A rotating mechanism, characterized in that: Used to carry a projector, the projector includes a shell, the rotating mechanism includes a driving assembly, a rotating chassis assembly and a transmission member, the transmission member is connected between the driving assembly and the rotating chassis assembly, the driving assembly is fixedly arranged in the shell and is used to drive the transmission member to rotate; the rotating chassis assembly is arranged at the bottom of the shell, and the rotating chassis assembly partially extends into the shell to be clamped in the position of the transmission member that deviates from the rotation center, so that the transmission member can drive the rotating chassis assembly to rotate synchronously when rotating; The driving assembly includes a driving motor and an output gear, wherein the driving motor is fixed to the inner wall of the shell, and the output gear is connected to the output end of the driving motor. The transmission member includes a transmission gear, and the output gear and the transmission gear are meshed with each other. The rotating chassis assembly includes a rotating chassis and a fixing column protruding from the rotating chassis. A through hole is provided at the bottom of the shell, and the fixing column is inserted into the interior of the shell through the through hole from the bottom of the shell. The transmission gear is fixedly connected to the top of the fixing column.

2. The rotating mechanism according to claim 1, characterized in that: A positioning block is provided at the end of the rotating chassis assembly extending into the shell; a positioning groove is formed at a position deviating from the rotation center of the transmission member; and the positioning block is inserted into the positioning groove.

3. The rotating mechanism according to claim 1, characterized in that: A positioning block, a fastener and a first fixing hole are provided on the top of the fixing column. A positioning groove and a second fixing hole are axially provided on the transmission gear. The positioning block is inserted into the positioning groove. The first fixing hole is directly opposite to the second fixing hole. The fastener passes through the second fixing hole and extends into and is fixed in the first fixing hole to fix the transmission gear to the fixing column.

4. The rotating mechanism according to claim 1, characterized in that: It also includes a clamping spring. A clamping groove is formed on a side wall of the fixing column that extends into a section of the interior of the shell. The clamping spring abuts against the inner wall of the shell and is clamped in the clamping groove.

5. The rotating mechanism according to claim 1, characterized in that: The rotating chassis assembly also includes a bearing. The rotating chassis surrounds the fixed column to form a bearing groove. The bearing is arranged in the bearing groove. The bearing is connected to the bottom of the shell and the bottom of the bearing groove through a ball.

6. The rotating mechanism according to claim 1, characterized in that: The rotating chassis assembly also includes a gasket. A gasket groove is provided on the rotating chassis. The gasket is arranged in the gasket groove. The rotating chassis abuts against the bottom of the shell through the gasket.

7. The rotating mechanism according to claim 1, characterized in that: The fixing column is protrudingly disposed at the center of the rotating chassis, and the through hole is opened at the center of the bottom of the shell, and the axial directions of the transmission gear and the output gear are perpendicular to each other.

8. A projection device, characterized in that: The invention comprises a projector and the rotating mechanism according to any one of claims 1 to 7, wherein the projector comprises a projector body and a projection bracket, the projector body is rotatably connected to the projection bracket, and the projection bracket comprises the shell.

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