Multifunctional projection device based on digital media

Abstract

The invention discloses a multifunctional projection device based on digital media, which comprises a shell cover, a projector and a hanging bracket, and comprises a taking and replacing component: the bottom of the shell cover is slidably provided with a stand for supporting the projector in a matched manner, the inner side of a frame plate is rotatably connected with a bent frame, and a buckling groove for buckling the bent frame in a matched manner is formed in the projector; the front side of the shell cover is rotatably connected with a cover plate, and the rotary arm controls plugging of the plug through a transmission part during rotation. According to the invention, firstly, the lens of the projector is shielded by the cover plate, dust is prevented from covering the outer side of the lens when the projector is idle, in the process that the lens is shielded by the cover plate, the plug is disconnected from the projector, the power-off protection of the projector is realized, and meanwhile, the power consumption is reduced; and the clamping state of the projector is released, so that a worker can conveniently maintain, take and replace the projector.

Description

Technical Field

[0001] This invention relates to the field of projection equipment technology, and in particular to a multifunctional projection device based on digital media. Background Technology

[0002] A projector is a device that projects images or videos onto a screen and is widely used in homes, offices, schools, and entertainment venues.

[0003] In schools, projectors used for teaching are mostly mounted on the walls above the classroom ceiling. This mounting method improves the utilization of classroom space and avoids interference from people walking around. However, because the projector is installed at a high position, when the projector malfunctions and needs to be replaced or maintained, or when the dust on the projector lens needs to be wiped regularly, staff need to use a ladder to reach the appropriate operating height. This makes the operation cumbersome and inconvenient for staff to maintain and repair the projector.

[0004] In existing technologies, to address the cumbersome maintenance of projectors in suspended states, most methods utilize height-adjustable stands and extended power cables. This allows maintenance personnel to perform repairs on level ground by lowering the stand's height. However, to accommodate the projector's height adjustment, the power cable needs to be extended. Once the projector reaches projection height, the excess cable dangles in mid-air, obstructing movement. Furthermore, in existing technologies, if the power plug remains plugged in when the projector is idle, it results in power loss. Moreover, prolonged power supply while the projector is idle poses a fire hazard should a short circuit occur in its internal circuitry.

[0005] To address the aforementioned shortcomings, a multifunctional projection device based on digital media is provided. Summary of the Invention

[0006] The purpose of this invention is to provide a multifunctional projection device based on digital media in order to solve the above-mentioned problems.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a multi-functional projection device based on digital media, comprising a housing, a projector, and a bracket mounted on the housing, including:

[0008] Replacement component: The bottom of the housing is slidably provided with a platform for mounting the projector. The housing is provided with a traction component that drives the platform to move vertically. The bottom of the platform is fixed with a frame plate. The inner side of the frame plate is rotatably connected to a bending frame that is clamped to the projector. The projector has a locking groove for the bending frame to engage. The bottom of the housing is provided with a guide component. When the platform moves vertically, the guide component controls the opening and closing of the bending frame.

[0009] Protective components: A cover plate that shields the projector lens is rotatably connected to the front side of the housing. A rotating arm is rotatably connected to the outer side of the housing. A spinning member is provided inside the housing. When the rotating arm rotates, the spinning member controls the opening and closing of the cover plate. A motor that controls the rotation of the rotating arm is mounted on the front end of the housing via an equipment frame. A housing sleeve is fixed to the rear side of the housing. A plug that connects to the projector is slidably embedded on the inner side of the housing. A transmission member is provided on the housing. When the rotating arm rotates, the transmission member controls the insertion and removal of the plug.

[0010] Preferably, a tripod is fixed at the bottom of the platform, the traction component includes a second transmission arm rotatably connected between the housing and the tripod, a connecting frame is slidably provided on the upper side of the housing, a side connecting frame is fixed at the side end of the connecting frame, a support arm is rotatably connected between the side connecting frame and the second transmission arm, and a mechanism for controlling the lateral movement and telescopic movement of the connecting frame is installed at the upper end of the housing.

[0011] Preferably, a barrier is fixed at the bottom of the frame, and a horizontal shaft passing through the barrier is fixed at the free ends of the two second transmission arms. The guide includes a strip plate slidably disposed within the barrier, and a pressing component is disposed on the strip plate to drive the bending frame to rotate. A sliding sleeve for driving the strip plate to move is slidably sleeved on the outer side of the horizontal shaft.

[0012] Preferably, the inner end of the sliding sleeve is formed with a second protrusion, and the side wall of the transverse shaft is formed with a sliding track that cooperates with the second protrusion to slide.

[0013] Preferably, a bracket is fixedly provided at the side end of the sliding sleeve, a round block is fixedly provided at the upper end of the bracket, and a strip groove is formed inside the strip plate to cooperate with the sliding of the round block.

[0014] Preferably, the pressing assembly includes a driven frame fixed to the side end of the strip plate, a guide plate fixed to the end of the driven frame away from the strip plate, an opening groove formed inside the bending frame, an inner extension block fixed in the opening groove, and a vertical groove formed on the side wall of the guide plate to cooperate with the sliding of the inner extension block.

[0015] Preferably, the housing is rotatably connected to a rotating shaft that is coaxially fixed with the cover plate, the spinning component includes a slider that is slidably sleeved on the outside of the rotating shaft, and the housing has an inner groove that cooperates with the slider to slide.

[0016] Preferably, a first protrusion is formed inside the slider, a slide rail is formed on the side wall of the rotating shaft to slide in conjunction with the first protrusion, a protrusion is fixed at the inner end of the rotating arm, and a recessed groove is formed in the slider to slide in conjunction with the protrusion.

[0017] Preferably, the plug is fixedly provided with a support rod that penetrates the housing, and a first sliding groove is formed in the housing to allow the support rod to slide through. The transmission component includes a sliding bracket that is slidably disposed on the outside of the housing, and a second sliding groove is formed in the sliding bracket to allow the sliding bracket to slide.

[0018] Preferably, a first transmission arm is rotatably connected between the housing and the sliding frame, and a shaft penetrating the housing is coaxially fixed between the first transmission arm and the rotating arm.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0020] 1. In this application, the projector is driven downward from the housing by the traction component control platform. When the projector descends to a safe height, the bending frame will automatically rotate and open under the action of the guide component. When the bending frame disengages from the inner groove, it will release the clamping state on the projector, thereby facilitating the maintenance and replacement of the projector by the staff. When the projector moves vertically, the plug and the projector are in a non-connected state, so there is no need to lengthen the plug cable.

[0021] 2. In this application, after the projector is used, the lens of the projector is covered by a cover plate to prevent dust from covering the outside of the lens when the projector is idle. During the process of rotating the cover plate to cover the lens, the plug will move outward along the shell under the action of the transmission component until the electrical connection with the projector is disconnected, thereby realizing power-off protection for the projector when it is idle, and reducing power consumption. Attached Figure Description

[0022] Figure 1 A perspective view of a projection device provided according to an embodiment of the present invention is shown;

[0023] Figure 2 A schematic diagram of the bottom structure of a projection device provided according to an embodiment of the present invention is shown;

[0024] Figure 3 A schematic diagram of the mating structure between the horizontal shaft and the sliding sleeve provided according to an embodiment of the present invention is shown;

[0025] Figure 4 A schematic diagram of the mating structure of the projector and the plug according to an embodiment of the present invention is shown;

[0026] Figure 5An exploded side view of the projection device provided according to an embodiment of the present invention is shown.

[0027] Figure 6 An exploded rear view of the projection device provided according to an embodiment of the present invention is shown.

[0028] Legend:

[0029] 1. Housing; 101. Inner groove; 2. Hanger; 3. Housing sleeve; 301. First slide groove; 4. Plug; 5. Support rod; 6. Sliding bracket; 601. Second slide groove; 7. First transmission arm; 8. Shaft; 9. Rotary arm; 10. Protrusion; 11. Equipment frame; 12. Motor; 13. Rotating shaft; 1301. Slide rail; 14. Cover plate; 15. Slider; 1501. Notch; 16. First protrusion; 17. Stand; 18. Tripod; 19. Second transmission arm ; 20. Support arm; 21. Connecting frame; 22. Side connecting frame; 23. Telescopic mechanism; 24. Enclosure; 25. Horizontal axis; 2501. Slide rail; 26. Sliding sleeve; 27. Second protrusion; 28. Bracket; 29. ​​Round block; 30. Strip plate; 3001. Strip groove; 31. Driven frame; 32. Guide plate; 3201. Vertical groove; 33. Shelf plate; 34. Bending frame; 3401. Opening groove; 35. Inner extension block; 36. Projector; 3601. Buckle groove. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figure 1-6 The present invention provides a technical solution: a multi-functional projection device based on digital media, comprising a housing 1, a projector 36, and a bracket 2 mounted on the housing 1, including:

[0032] Replacement components: A platform 17 for mounting the projector 36 is slidably mounted on the bottom of the housing 1; a vertical rod slidably connected to the housing 1 should be provided on the platform 17, so that the platform 17 remains horizontal when it moves vertically under the action of the traction member, which is beneficial to the stable mounting of the projector 36; the vertical rod can be replaced by a multi-stage telescopic sleeve rod, which can increase the vertical range of the platform 17; a traction member is provided on the housing 1 to drive the platform 17 to move vertically, and a frame plate 33 is fixed at the bottom of the platform 17. A bending frame 34 for clamping the projector 36 is rotatably connected to the inner side of the frame plate 33, and the projector 36 forms a fitting bending frame 34. The snap-in groove 3601 is fitted into the housing 1, and a guide is provided at the bottom of the housing 1. When the platform 17 moves vertically, the opening and closing of the bending frame 34 is controlled by the guide. The housing 1 is installed on the top of the wall by the hanger 2. When the user needs to replace or maintain the projector 36 fixed on the platform 17, the platform 17 is controlled by the traction component to drive the projector 36 downward to detach from the housing 1. When the projector 36 descends to a safe height, the bending frame 34 will automatically rotate and open under the action of the guide. When the bending frame 34 is disengaged from the inner groove 101, it will release the clamping state on the projector 36, thereby facilitating the maintenance and replacement of the projector 36 by the staff.

[0033] Protective components: A cover plate 14 is rotatably connected to the front of the housing 1 to shield the lens of the projector 36. A rotating arm 9 is rotatably connected to the outside of the housing 1. A spinning member is provided inside the housing 1. When the rotating arm 9 rotates, the spinning member controls the opening and closing of the cover plate 14. A motor 12 for controlling the rotation of the rotating arm 9 is mounted on the front end of the housing 1 via a device frame 11. A housing sleeve 3 is fixed to the rear of the housing 1. A plug 4 for connecting to the projector 36 is slidably embedded on the inner side of the housing sleeve 3. A transmission member is provided on the housing 1. When the rotating arm 9 rotates, the transmission member controls the insertion and removal of the plug 4. After using the projector 36, the motor 12 is started to control the rotating arm 9 to rotate, so that the cover plate 14 rotates under the action of the spinning member to cover the lens of the projector 36, thereby preventing dust from covering the outside of the lens during the use of the projector 36 and affecting the normal use of the projector 36; during the process of the cover plate 14 rotating to cover the lens, the plug 4 will move outward along the housing 3 under the action of the transmission member until the electrical connection with the projector 36 is disconnected, thereby realizing the power-off protection of the projector 36 when the projector 36 is idle.

[0034] Specifically, such as Figure 1-6As shown, a tripod 18 is fixedly installed at the bottom of the platform 17. The traction component includes a second transmission arm 19 rotatably connected between the housing 1 and the tripod 18. A connecting frame 21 is slidably installed on the upper side of the housing 1. A side connecting frame 22 is fixedly installed at the side end of the connecting frame 21. A support arm 20 is rotatably connected between the side connecting frame 22 and the second transmission arm 19. A telescopic mechanism 23 for controlling the lateral movement of the connecting frame 21 is installed at the upper end of the housing 1. The second transmission arm 19 is composed of multiple rods rotatably connected. The telescopic mechanism 23 adopts an existing pneumatic or hydraulic transmission method. The transmission end of the telescopic mechanism 23 is fixedly connected to the connecting frame 21. The telescopic mechanism 23 controls the connecting frame 21 to move horizontally. The side connecting frame 22 fixed to the connecting frame 21 will act on the second transmission arm 19 through the support arm 20, driving the second transmission arm 19 to pull the platform 17 to move vertically.

[0035] A barrier 24 is fixedly installed at the bottom of the frame 17. A horizontal shaft 25, penetrating the barrier 24, is fixedly installed at the free ends of the two second transmission arms 19. The guiding component includes a strip plate 30 slidably disposed within the barrier 24. A pressing assembly for driving the bending frame 34 to rotate is installed on the strip plate 30. A sliding sleeve 26 for driving the strip plate 30 to move is slidably sleeved on the outer side of the horizontal shaft 25. A second protrusion 27 is formed at the inner end of the sliding sleeve 26, and a slide rail 2501 is formed on the side wall of the horizontal shaft 25 to slide in conjunction with the second protrusion 27. A slide rail 2501 is provided to slide in conjunction with the second protrusion 27. The slide rail 2501 is spirally distributed on the side wall of the horizontal shaft 25. When the horizontal shaft 25 rotates, it will act on the second protrusion 27 through the slide rail 2501, driving the sliding sleeve 26 fixed to the second protrusion 27 to slide along the horizontal shaft 25. A bracket 28 is fixed to the side end of the sliding sleeve 26, and a round block 29 is fixed to the upper end of the bracket 28. A strip groove 3001 is formed inside the strip plate 30 to slide in conjunction with the round block 29. When the folding state of the second transmission arm 19 changes under the action of the support arm 20, the free end of the second transmission arm 19 is fixed. The fixed horizontal axis 25 will rotate along the tripod 18. During this process, the horizontal axis 25 will act on the second protrusion 27 through the slide rail 2501 on its side wall, causing the sliding sleeve 26 fixed to the second protrusion 27 to move horizontally. At this time, the bracket 28 fixed on the sliding sleeve 26 will drive the circular block 29 to slide along the strip groove 3001. The strip groove 3001 is composed of a first straight segment and a second straight segment, and the first straight segment and the second straight segment form a bent structure. During the process of the platform 17 driving the projector 36 to begin to descend, the circular block 29 will first slide along the first straight segment. The strip plate 30 is stationary relative to the stand 17. The bending frame 34 will maintain the clamping state of the projector 36, thereby ensuring the safety of the projector 36 during the process of moving down from a height. As the projector 36 descends to a safe height, the circular block 29 will slide from the first straight segment into the second straight segment. Through the pressure transmission of the circular block 29 on the second straight segment, the strip plate 30 will be driven to move laterally through the driven frame 31 and the guide plate 32. At this time, the guide plate 32 will act on the inner extension block 35 through the vertical groove 3201, driving the bending frame 34 to rotate and open, releasing the clamping state of the projector 36.

[0036] The pressing assembly includes a driven frame 31 fixed to the side of the strip plate 30. A guide plate 32 is fixed to the end of the driven frame 31 away from the strip plate 30. An opening groove 3401 is formed inside the bending frame 34. An inner extension block 35 is fixed in the opening groove 3401. A vertical groove 3201 is formed on the side wall of the guide plate 32 to cooperate with the sliding of the inner extension block 35. When the strip plate 30 moves laterally by driving the guide plate 32 through the driven frame 31, it will act on the inner extension block 35 through the vertical groove 3201, driving the bending frame 34 to rotate along the frame plate 33. The clamping state of the projector 36 on the frame 17 is controlled by controlling the opening and closing of the bending frame 34. When the strip plate 30 slides laterally by driving the guide plate 32 through the driven frame 31, it will act on the inner extension block 35 through the vertical groove 3201 on its side wall, driving the bending frame 34 to rotate along the frame plate 33.

[0037] Specifically, such as Figure 1-6 As shown, a rotating shaft 13, coaxially fixed to a cover plate 14, is rotatably connected to the housing 1. The spinning component includes a slider 15 slidably sleeved on the outside of the rotating shaft 13. An inner groove 101 is formed in the housing 1 to cooperate with the sliding of the slider 15. A first protrusion 16 is formed inside the slider 15, and a slide rail 1301 is formed on the side wall of the rotating shaft 13 to cooperate with the sliding of the first protrusion 16. The slide rail 1301 has a spiral structure. The pressure of the first protrusion 16 on the slide rail 1301 drives the cover plate 14 fixed to the rotating shaft 13 to rotate. 4. Rotation is performed; a protrusion 10 is fixedly provided at the inner end of the rotating arm 9, and a recessed groove 1501 is formed in the slider 15 to cooperate with the sliding of the protrusion 10; the motor 12 is started to control the rotation of the rotating arm 9, so that the protrusion 10 fixed on the rotating arm 9 drives the slider 15 to slide along the inner groove 101 through the action of the recessed groove 1501. During this process, the first protrusion 16 fixed on the inner wall of the slider 15 will drive the cover plate 14 fixed to the rotating shaft 13 to rotate through the action of the slide rail 1301, thereby controlling the opening and closing of the cover plate 14.

[0038] A support rod 5 is fixedly mounted on the plug 4, penetrating the housing 3. A first sliding groove 301 is formed in the housing 3 to allow the support rod 5 to slide through. The transmission component includes a sliding bracket 6 slidably disposed on the outside of the housing 3. A second sliding groove 601 is formed in the sliding bracket 6 to allow the sliding bracket 6 to slide. When the sliding bracket 6 slides along the outside of the housing 3, it will act on the support rod 5 through the second sliding groove 601, driving the plug 4, which is fixed to the support rod 5, to slide along the housing 3, thereby realizing the connection relationship between the control plug 4 and the projector 36.

[0039] A first transmission arm 7 is rotatably connected between the housing 1 and the sliding bracket 6. A shaft 8, which passes through the housing 1, is coaxially fixed between the first transmission arm 7 and the rotating arm 9. When the rotating arm 9 rotates to control the cover 14 to rotate and unfold, it will drive the first transmission arm 7 to rotate synchronously through the shaft 8, so that the sliding bracket 6, which is rotatably connected to the first transmission arm 7, slides along the housing 1. At this time, the plug 4 will slide inward under the action of the sliding bracket 6 until it is plugged into the projector 36, so as to control the power supply of the projector 36. When the cover 14 is rotated to close under the action of the rotating arm 9, the two sliding brackets 6 will move synchronously in opposite directions under the action of the first transmission arm 7 until the plug 4 is disconnected from the power supply of the projector 36, so that the projector 36 is in a non-powered state when idle.

[0040] The above description of the embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multi-functional projection device based on digital media, comprising a housing (1), a projector (36), and a bracket (2) mounted on the housing (1), characterized in that, include: Replacement component: The bottom of the housing (1) is slidably provided with a platform (17) for mounting the projector (36). The housing (1) is provided with a traction member that drives the platform (17) to move vertically. The bottom of the platform (17) is fixed with a frame plate (33). The inner side of the frame plate (33) is rotatably connected with a bending frame (34) that is clamped to the projector (36). The projector (36) has a snap-fit ​​groove (3601) that is engaged with the bending frame (34). The bottom of the housing (1) is provided with a guide member. When the platform (17) moves vertically, the guide member controls the opening and closing of the bending frame (34). Protective components: The front side of the housing (1) is rotatably connected to a cover plate (14) that blocks the lens of the projector (36). The outer side of the housing (1) is rotatably connected to a rotating arm (9). A spinning member is provided in the housing (1). When the rotating arm (9) rotates, the spinning member controls the opening and closing of the cover plate (14). The front end of the housing (1) is equipped with a motor (12) that controls the rotation of the rotating arm (9) via an equipment frame (11). The rear side of the housing (1) is fixedly provided with a housing sleeve (3). The inner side of the housing sleeve (3) is slidably embedded with a plug (4) that connects to the projector (36). A transmission member is provided on the housing (1). When the rotating arm (9) rotates, the transmission member controls the insertion and removal of the plug (4).

2. The multifunctional projection device based on digital media according to claim 1, characterized in that, The bottom of the platform (17) is fixedly provided with a tripod (18). The traction component includes a second transmission arm (19) rotatably connected between the housing (1) and the tripod (18). A connecting frame (21) is slidably provided on the upper side of the housing (1). A side connecting frame (22) is fixedly provided on the side end of the connecting frame (21). A support arm (20) is rotatably connected between the side connecting frame (22) and the second transmission arm (19). A control mechanism (23) for the lateral movement and telescopic movement of the connecting frame (21) is installed on the upper end of the housing (1).

3. A multifunctional projection device based on digital media according to claim 2, characterized in that, The bottom of the frame (17) is fixedly provided with a barrier (24), and the free ends of the two second transmission arms (19) are fixedly provided with a horizontal shaft (25) that passes through the barrier (24). The guide includes a strip plate (30) that is slidably disposed in the barrier (24). The strip plate (30) is provided with a pressing component that drives the bending frame (34) to rotate. The outer side of the horizontal shaft (25) is slidably sleeved with a sliding sleeve (26) that drives the strip plate (30) to move.

4. A multifunctional projection device based on digital media according to claim 3, characterized in that, The inner end of the sliding sleeve (26) is formed with a second protrusion (27), and the side wall of the transverse shaft (25) is formed with a slide (2501) that slides in conjunction with the second protrusion (27).

5. A multifunctional projection device based on digital media according to claim 4, characterized in that, The side end of the sliding sleeve (26) is fixed with a bracket (28), the upper end of the bracket (28) is fixed with a round block (29), and the inside of the strip plate (30) is formed with a strip groove (3001) that cooperates with the round block (29) to slide.

6. A multifunctional projection device based on digital media according to claim 5, characterized in that, The compression assembly includes a driven frame (31) fixed to the side end of the strip plate (30), a guide plate (32) fixed to the end of the driven frame (31) away from the strip plate (30), an opening groove (3401) is formed inside the bending frame (34), an inner extension block (35) is fixed in the opening groove (3401), and a vertical groove (3201) is formed on the side wall of the guide plate (32) to cooperate with the sliding of the inner extension block (35).

7. A multifunctional projection device based on digital media according to claim 1, characterized in that, The housing (1) is rotatably connected to a rotating shaft (13) that is coaxially fixed with the cover plate (14). The spinning component includes a slider (15) that is slidably sleeved on the outside of the rotating shaft (13). The housing (1) has an inner groove (101) that cooperates with the slider (15) to slide.

8. A multifunctional projection device based on digital media according to claim 7, characterized in that, The slider (15) has a first protrusion (16) inside, and the side wall of the rotating shaft (13) has a slide rail (1301) that slides with the first protrusion (16). The inner end of the rotating arm (9) is fixed with a protrusion (10), and the slider (15) has a notch (1501) that slides with the protrusion (10).

9. A multifunctional projection device based on digital media according to claim 8, characterized in that, The plug (4) is fixed with a support rod (5) that penetrates the housing (3). The housing (3) has a first sliding groove (301) that slides through the support rod (5). The transmission component includes a sliding bracket (6) that is slidably disposed on the outside of the housing (3). The sliding bracket (6) has a second sliding groove (601) that slides through the sliding bracket (6).

10. A multifunctional projection device based on digital media according to claim 9, characterized in that, The housing (1) is rotatably connected to the sliding frame (6) by a first transmission arm (7), and the first transmission arm (7) and the rotating arm (9) are coaxially fixed with a shaft (8) that passes through the housing (1).

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