Projector

Abstract

The utility model relates to a projector, which ensures accurate control and stable operation of a rotating seat in a rotating process through a transmission mode that a gear ring is matched with a driving gear. And meanwhile, the tight connection between the buckling part and the mounting hole further enhances the stability of the whole rotating system, and reduces the problems of vibration and noise caused by mechanical gaps. Furthermore, the rotating seat is correspondingly mounted in the movable groove, and the buckling part is clamped on the hole wall of the mounting hole, so that the assembly of the rotating device and the upper cover is completed; and during disassembly, the rotating seat can be disassembled by withdrawing the buckling part from the mounting hole, so that the product is very convenient to disassemble and assemble, and the production and assembly efficiency of the product is improved.

Description

Technical Field

[0001] The utility model relates to the field of projection, in particular to a projector. Background Art

[0002] With the development of multimedia display technology, projectors have become an indispensable tool in education, business presentations, and entertainment. However, these dynamic projection devices still face some technical and practical challenges:

[0003] First, the rotating base on the projector in the related art rotates less smoothly and stably, affecting projection quality. Furthermore, existing projectors often use a complex assembly structure, which not only increases manufacturing costs but also leads to low production and assembly efficiency. Furthermore, projectors with a rotating function are more susceptible to physical damage during daily use, such as axis deviation caused by collisions. In the event of a malfunction, the complex assembly structure makes the product difficult to repair. Utility Model Content

[0004] The technical problem to be solved by the present invention is to provide a projector that can solve the problems of low running stability, high manufacturing cost, low assembly production efficiency and great maintenance difficulty.

[0005] The utility model provides a projector, which includes:

[0006] Mounting seat;

[0007] An upper cover is disposed on the mounting base, the upper cover and the mounting base jointly define a receiving cavity, the upper cover is provided with a movable groove, and a plurality of buckle parts are provided in the movable groove; and

[0008] The rotating device includes a rotating seat, a ring gear, a motor and a driving gear. The rotating seat is provided with a mounting hole at the center. The rotating seat is rotatably arranged in the movable groove. Each of the buckle parts is inserted and clamped in the mounting hole. The ring gear is arranged on the rotating seat. The motor is arranged in the accommodating cavity. The motor is driven and connected to the driving gear, and the driving gear is engaged with the ring gear.

[0009] Preferably, a convex edge is provided on the hole wall of the mounting hole, and each of the buckle parts is snapped onto the convex edge.

[0010] Preferably, the buckle portions are distributed in a circular array along the center of the movable slot.

[0011] Preferably, the gear ring is integrally formed and arranged on the rotating seat.

[0012] Preferably, the rotating device further comprises a projection cylinder, which is detachably mounted on the rotating seat and has a projection layer disposed on it.

[0013] Preferably, a plug-in buckle is provided at the bottom of the projection tube, and a plug-in hole is provided on the rotating seat. The plug-in hole has a wide end and a narrow end. The wide end is for the plug-in buckle to be inserted, and the narrow end is for the plug-in buckle to be clamped.

[0014] Preferably, the rotating seat is further provided with an alignment ring groove, the projection tube is inserted into the alignment ring groove, and the insertion hole is located on the groove wall of the alignment ring groove.

[0015] Preferably, a positioning step and a plurality of connecting columns are provided in the mounting seat, and a plurality of countersunk holes are opened in the upper cover. The positioning step is supported on the peripheral side wall of the mounting seat, and each of the countersunk holes is aligned one by one with each of the connecting columns, and each of the countersunk holes is provided for bolts to pass through and be screwed to each of the connecting columns.

[0016] Preferably, the projector also has a control device, which includes a circuit board, a connection port and a plurality of buttons. The circuit board is arranged in the accommodating cavity, and a plurality of switches are arranged on the circuit board. The connection port is arranged on the circuit board, and the connection port is exposed on the peripheral side wall of the mounting seat. Each of the buttons is movably arranged on the mounting seat, and each of the buttons corresponds to each of the switches.

[0017] Preferably, the projector further comprises a light board, on which a plurality of light-emitting elements are provided;

[0018] A fixing column is provided in the movable groove, and the fixing column passes through the lamp board, and the lamp board covers the mounting hole.

[0019] Preferably, a speaker groove and a plurality of first mounting convex walls are provided in the mounting base, a plurality of sound-permeable holes are provided at the bottom of the speaker groove, and a plurality of second mounting convex walls are provided on the upper cover;

[0020] The projector also includes a battery and a speaker. Both the battery and the speaker are located in the accommodating cavity. The battery is supported by each of the first mounting protrusions and each of the second mounting protrusions, thereby limiting the position of the battery in the accommodating cavity. The speaker is arranged in the speaker groove.

[0021] The implementation of this utility model has the following beneficial effects:

[0022] This utility model relates to a projector that utilizes a transmission method in which a ring gear cooperates with a drive gear to ensure precise control and smooth operation of a rotating base during rotation. Furthermore, the tight connection between the snap portion and the mounting hole further enhances the stability of the entire rotating system and reduces vibration and noise issues caused by mechanical play.

[0023] Furthermore, when the rotating seat is installed in the movable groove, the snap-on portion will be snapped onto the wall of the mounting hole, completing the assembly of the rotating device and the upper cover; when disassembling, the snap-on portion can be withdrawn from the mounting hole to remove the rotating seat. The disassembly and assembly of the product is very convenient, thereby improving the production and assembly efficiency of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0025] Figure 1 is a schematic structural diagram of a projector in some embodiments of the present invention;

[0026] Figure 2 is an exploded view of a projector in some embodiments of the present invention;

[0027] Figure 3 From another perspective Figure 2 Exploded view of the projector shown;

[0028] Figure 4 is another exploded view of the projector in some embodiments of the present invention;

[0029] Figure 5 is a schematic diagram of the internal structure of a projector in some embodiments of the present invention;

[0030] Figure 6 It is a partial structural diagram of a projector in some embodiments of the present utility model. DETAILED DESCRIPTION

[0031] The following describes embodiments of the present invention in more detail with reference to the accompanying drawings. Although the accompanying drawings illustrate embodiments of the present invention, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0032] It should be understood that although the terms "first", "second", "third", etc. may be used in the present invention to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the present invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0033] In the description of the present invention, 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 present invention 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 present invention.

[0034] Unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," and the like should be interpreted broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0035] Figure 1 A projector 10 is shown, comprising a mounting base 1, an upper cover 2, and a rotating device 3. The upper cover 2 is mounted on the mounting base 11, and the rotating device 3 is rotatably mounted on the mounting base 1. As can be understood, the mounting base 1 serves to mount and support the remaining components. The upper cover 2 is used to support the rotating device 3 for rotation. Rotation of the rotating device 3 causes the projected image to move.

[0036] like Figures 1 to 6 As shown, the upper cover 2 is disposed on the mounting base 1 , and the upper cover 2 and the mounting base 1 jointly define a receiving cavity 111 . The upper cover 2 is provided with a movable groove 21 , and a plurality of buckle portions 211 are disposed in the movable groove 21 .

[0037] It can be understood that the accommodating cavity 111 is used to provide space required for the installation of other components. The movable groove 21 is used to provide space required for the rotation of the rotating device 3.

[0038] The rotating device 3 includes a rotating base 31, a ring gear 32, a motor 33 and a driving gear 34. The rotating base 31 has a mounting hole 311 at the center. The rotating base 31 is rotatably set in the movable groove 21. Each snap-fit ​​portion 211 is inserted and clamped in the mounting hole 311. The ring gear 32 is set on the rotating base 31, and the motor 33 is set in the accommodating cavity 111. The motor 33 is driven and connected to the driving gear 34, and the driving gear 34 is engaged with the ring gear 32.

[0039] It is understood that the rotation of the rotating base 31 will cause the projected image to rotate accordingly. The ring gear 32 is used to receive torque. The motor 33 is used to output torque during operation. The drive gear 34 is used to transmit the torque of the motor 33 to the ring gear 32.

[0040] It should be noted that when the motor 33 is powered, it drives the drive gear 34 to rotate, which in turn drives the ring gear 32 to rotate, and the ring gear 32 drives the rotating base 31 to rotate. The rotation of the rotating base 31 drives the structure through which light passes to form a projection, thereby causing the projected image to change position even when the position of the light source remains unchanged.

[0041] It should also be noted that the ring gear 32 is fixed to the rotating base 31 and tightly meshes with the drive gear 34, thereby ensuring that the torque output by the motor 33 can be evenly and accurately transmitted to the rotating base 31. The drive gear 34 and the ring gear 32 are meshed to transmit power, avoiding vibration and noise caused by excessive transmission clearance.

[0042] The plurality of latches 211 within the movable slot 21 are inserted into and snap-fitted into the mounting hole 311 at the center of the rotating base 31. This not only simplifies the assembly process but also ensures that the rotating base 31 is accurately positioned within the movable slot 21. The latches 211 and the mounting hole 311 employ an interference fit or elastic snap connection, effectively preventing any loosening during rotation, thereby maintaining the stability of the entire rotating system.

[0043] like Figures 2 to 6 As shown, in some implementations of the projector 10 , a protruding edge 312 is provided on the hole wall of the mounting hole 311 , and each of the locking portions 211 is locked to the protruding edge 312 .

[0044] It can be understood that the protrusion 312 is a continuous protrusion structure on the wall of the mounting hole 311. In this way, when the snap-on portion 211 is snapped onto the protrusion 312, the snap-on portion 211 can maintain a snap-on state with the protrusion 312 when the rotating seat 31 is rotated to any angle, thereby maintaining a stable clamping state of the rotating seat 31.

[0045] like Figures 2 to 6As shown, in some implementations of the projector 10 , the buckling portions 211 are distributed in a circular array along the center of the movable slot 21 .

[0046] It can be understood that by evenly distributing the latch portions 211 along the center of the movable slot 21, a more stable connection between the rotating base 31 and the upper cover 2 can be ensured. This symmetrical and even distribution helps maintain the balance of the rotating base 31, avoids deflection or shaking caused by local uneven force, and thus improves the structural stability of the entire device.

[0047] like Figures 2 to 6 As shown, in some implementations of the projector 10 , the ring gear 32 is integrally formed on the rotating base 31 .

[0048] As can be understood, by integrally molding the ring gear 32 and the rotating base 31, the connection strength between them is significantly enhanced. This approach avoids the assembly gaps and looseness that can occur with traditional separate configurations, thereby improving the structural rigidity and overall stability of the entire rotating device. Furthermore, the integrated molding eliminates the need for separate machining and assembly of the ring gear 32, streamlining the production process and thus reducing manufacturing costs while improving production efficiency. Furthermore, by reducing the number of parts, the likelihood of errors or quality issues during assembly is greatly reduced.

[0049] like Figures 2 to 6 As shown, in some implementations of the projector 10 , the rotating device 3 further includes a projection tube 35 . The projection tube 35 is detachably mounted on the rotating base 31 , and a projection layer is disposed on the projection tube 35 .

[0050] As can be understood, the projection tube 35 is configured as a cylindrical structure with one end open for connection to the rotating base 31 and the other end closed or equipped with a lens assembly to achieve image projection. Of course, the peripheral sidewalls of the projection tube 35 can also be configured as a light-transmitting structure to allow light to pass through, thereby achieving a projection effect. A projection layer is installed on the surface or inside of the projection tube 35 to carry the image to be projected.

[0051] like Figures 2 to 6 As shown, in some embodiments of the projector 10, a plug-in buckle 351 is provided at the bottom of the projection tube 35, and a plug-in hole 313 is opened on the rotating base 31. The plug-in hole 313 has a wide end 3131 and a narrow end 3132. The wide end 3131 is for the plug-in buckle 351 to be inserted, and the narrow end 3132 is for the plug-in buckle 351 to be clamped.

[0052] As can be understood, the wide end 3131 is designed to facilitate the smooth insertion of the plug-in buckle 351. This wide end ensures that the plug-in buckle 351 can easily enter the insertion hole 313, reducing resistance during installation. Once the plug-in buckle 351 enters the insertion hole 313 through the wide end 3131, it can slide to the narrow end 3132 and be locked. The narrow end provides sufficient friction and a locking effect, ensuring that the projection tube 35 is firmly fixed to the rotating base 31, preventing accidental disengagement during use.

[0053] It should be noted that the cooperation between the plug buckle 351 and the plug hole 313 allows the user to easily install and remove the projection tube 35. No tools are required, and the operation can be completed by simply pushing in and pulling out, which improves the user's convenience.

[0054] like Figures 2 to 6 As shown, in some implementations of the projector 10 , the rotating base 31 further defines an alignment ring groove 314 , the projection tube 35 is inserted into the alignment ring groove 314 , and the insertion hole 313 is located on the groove wall of the alignment ring groove 314 .

[0055] It is understood that the alignment groove 314 is generally an annular groove located on the top or side of the rotating base 31, and its shape and size match the bottom of the projection tube 35. The alignment groove 314 not only provides a positioning reference for the projection tube 35, but also increases the contact area, thereby improving the stability of the installation.

[0056] like Figures 2 to 6 As shown, in some embodiments of the projector 10, a positioning step 112 and a plurality of connecting columns 113 are provided in the mounting base 1, and a plurality of countersunk holes 22 are opened in the upper cover 2. The positioning step 112 is supported on the peripheral side wall of the mounting base 1, and each countersunk hole 22 is aligned with each connecting column 113 one by one, and each countersunk hole 22 is for a bolt to pass through and be screwed to each connecting column 113.

[0057] It can be understood that the positioning step 112 is located on the peripheral side wall of the mounting base 1, and its function is to provide a clear positioning reference for the upper cover 2. When the upper cover 2 is placed on the mounting base 1, the positioning step 112 can support the edge of the upper cover 2 to prevent the upper cover 2 from moving in the horizontal direction. The connecting column 113 is arranged inside the mounting base 1, used to align with the countersunk hole 22 on the upper cover 2 and be fixed by bolts. The number and position of the connecting column 113 can be designed according to actual needs to ensure uniform force and stable connection between the upper cover 2 and the mounting base 1. The countersunk holes 22 opened on the upper cover 2 correspond one-to-one to the connecting column 113. The setting of the countersunk hole 22 allows the bolt head to sink into the surface of the upper cover 2, thereby maintaining a flat and beautiful appearance. At the same time, the countersunk hole 22 also provides sufficient depth so that the bolt can be firmly screwed into the connecting column 113.

[0058] like Figures 2 to 6 As shown, in some embodiments of the projector 10, the projector 10 also includes a control device 4, which includes a circuit board 41, a connection port 42 and a plurality of buttons 43. The circuit board 41 is arranged in the accommodating cavity 111, and a plurality of switches 411 are arranged on the circuit board 41. The connection port 42 is arranged on the circuit board 41, and the connection port 42 is exposed on the peripheral side wall of the mounting base 1. Each button 43 is movably arranged on the mounting base 1, and each button 43 is correspondingly supported on each switch 411.

[0059] It is understandable that the circuit board 41 is disposed in the accommodating cavity 111 defined by the mounting base 1 and the upper cover 2. The circuit board 41 is the core of the entire control device, integrating the electronic components and circuits required to control various functions of the projector; the circuit board 41 is prior art.

[0060] A plurality of switches 411 are provided on the circuit board 41, and these switches are used to respond to user operations through the buttons 43. Each switch 411 corresponds to a specific function or operation, such as power on / off, mode switching, light intensity, rotation speed, etc.

[0061] The connection port 42 is also provided on the circuit board 41 and exposed on the peripheral side wall of the mounting base 1. The connection port 42 may include a variety of interfaces, such as a USB interface, an HDMI interface, a TYPE-C interface or other data transmission interfaces, for connecting external devices or performing data transmission.

[0062] The buttons 43 are movably arranged on the mounting base 1, and each button 43 is correspondingly pressed against the switch 411 on the circuit board 41. The design of the buttons 43 allows the user to directly trigger the corresponding switch by pressing the button, thereby achieving various control operations on the projector.

[0063] like Figures 2 to 6 As shown, in some implementations of the projector 10 , the projector 10 further includes a lamp board 5 , on which a plurality of light-emitting components are provided; a fixing column 23 is provided in the movable groove 21 , the fixing column 23 passes through the lamp board 5 , and the lamp board 5 covers the mounting hole 311 .

[0064] As will be understood, the light board 5 is equipped with several light-emitting components (such as LEDs) that provide the light source required for projection. The light board 5 is located within the movable groove 21 and is positioned and secured by fixing posts 23. Fixing posts 23 extend through the light board 5 to ensure that the light board 5 is precisely positioned and firmly fixed within the movable groove 21, thereby preventing the light board 5 from shifting or loosening during use.

[0065] like Figures 2 to 6As shown, in some embodiments of the projector 10, a speaker groove 114 and a plurality of first mounting protrusions 115 are provided in the mounting base 1, a plurality of sound-permeable holes 1141 are provided at the bottom of the speaker groove 114, and a plurality of second mounting protrusions 24 are provided on the upper cover 2;

[0066] The projector 10 further includes a battery 6 and a speaker. Both the battery 6 and the speaker are located in the accommodating cavity 111 . The battery 6 is supported by the first mounting protrusions 115 and the second mounting protrusions 24 , thereby limiting the position of the battery 6 in the accommodating cavity 111 . The speaker is disposed in the speaker groove 114 .

[0067] As can be understood, the speaker slot 114 is located within the mounting base 1 and accommodates a speaker. The bottom of the speaker slot 114 is provided with a number of sound-transmitting holes 1141. These holes allow sound to be transmitted from the speaker while maintaining isolation from the external environment, reducing the effects of dust and moisture. A first mounting protrusion 115 is provided within the mounting base 1 to define the position of the battery 6. A second mounting protrusion 24 is provided on the upper cover 2 and, in conjunction with the first mounting protrusion 115, secures the battery 6, ensuring its stable position within the accommodating cavity 111. Both the first mounting protrusion 115 and the second mounting protrusion 24 position and secure the battery 6 through physical contact. The battery 6 is positioned within the accommodating cavity 111, supported by the first mounting protrusion 115 and the second mounting protrusion 24, thereby defining its position within the accommodating cavity 111 and preventing the battery from moving or becoming loose during use. The speaker is located within the speaker slot 114 and transmits sound to the outside through the sound-transmitting holes 1141.

[0068] The implementation of this utility model has the following beneficial effects:

[0069] This utility model relates to a projector that utilizes a transmission method in which a ring gear cooperates with a drive gear to ensure precise control and smooth operation of a rotating base during rotation. Furthermore, the tight connection between the snap portion and the mounting hole further enhances the stability of the entire rotating system and reduces vibration and noise issues caused by mechanical play.

[0070] Furthermore, when the rotating seat is installed in the movable groove, the snap-on portion will be snapped onto the wall of the mounting hole, completing the assembly of the rotating device and the upper cover; when disassembling, the snap-on portion can be withdrawn from the mounting hole to remove the rotating seat. The disassembly and assembly of the product is very convenient, thereby improving the production and assembly efficiency of the product.

[0071] The scheme of the present invention has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have their own emphases. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. Those skilled in the art should also be aware that the actions and modules involved in the description are not necessarily required for the present invention. In addition, it can be understood that the steps in the method of the embodiment of the present invention can be adjusted in sequence, merged and deleted according to actual needs, and the modules in the device of the embodiment of the present invention can be merged, divided and deleted according to actual needs.

[0072] While various embodiments of the present invention have been described above, the above descriptions are illustrative and non-exhaustive, and are not intended to be limiting of the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or improvements to existing technologies, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A projector, characterized in that: include: Mounting seat; An upper cover is disposed on the mounting base, the upper cover and the mounting base jointly define a receiving cavity, the upper cover is provided with a movable groove, and a plurality of buckle parts are provided in the movable groove; and The rotating device includes a rotating seat, a ring gear, a motor and a driving gear. The rotating seat is provided with a mounting hole at the center. The rotating seat is rotatably arranged in the movable groove. Each of the buckle parts is inserted and clamped in the mounting hole. The ring gear is arranged on the rotating seat. The motor is arranged in the accommodating cavity. The motor is driven and connected to the driving gear, and the driving gear is engaged with the ring gear.

2. The projector according to claim 1, wherein A convex edge is provided on the hole wall of the mounting hole, and each of the buckle parts is clamped on the convex edge.

3. The projector according to claim 2, wherein: The buckle portions are distributed in a circular array along the center of the movable groove.

4. The projector according to claim 1, wherein The gear ring is integrally formed and arranged on the rotating seat.

5. The projector according to claim 1, wherein The rotating device further comprises a projection cylinder, which is detachably arranged on the rotating seat and has a projection layer arranged on the projection cylinder.

6. The projector according to claim 5, wherein: The bottom of the projection tube is provided with a plug-in buckle, and the rotating seat is provided with a plug-in hole. The plug-in hole has a wide end and a narrow end. The wide end is for the plug-in buckle to be inserted, and the narrow end is for the plug-in buckle to be clamped.

7. The projector according to claim 1, wherein The projector further comprises a lamp board, on which a plurality of light-emitting elements are arranged; A fixing column is provided in the movable groove, and the fixing column passes through the lamp board, and the lamp board covers the mounting hole.

8. The projector according to claim 1, wherein A positioning step and a plurality of connecting columns are provided in the mounting seat, and a plurality of countersunk holes are opened in the upper cover. The positioning step is supported on the peripheral side wall of the mounting seat, and each of the countersunk holes is aligned with each of the connecting columns one by one, and each of the countersunk holes is for a bolt to pass through and be screwed to each of the connecting columns.

9. The projector according to claim 1, wherein The projector also has a control device, which includes a circuit board, a connection port and a plurality of buttons. The circuit board is arranged in the accommodating cavity, and a plurality of switches are arranged on the circuit board. The connection port is arranged on the circuit board, and the connection port is exposed on the peripheral side wall of the mounting seat. Each of the buttons is movably arranged on the mounting seat, and each of the buttons corresponds to each of the switches.

10. The projector according to claim 1, wherein The mounting base is provided with a speaker groove and a plurality of first mounting protrusions, the bottom of the speaker groove is provided with a plurality of sound-permeable holes, and the upper cover is provided with a plurality of second mounting protrusions; The projector also includes a battery and a speaker. Both the battery and the speaker are located in the accommodating cavity. The battery is supported by each of the first mounting protrusions and each of the second mounting protrusions, thereby limiting the position of the battery in the accommodating cavity. The speaker is arranged in the speaker groove.

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