A projection device with adjustment function

Abstract

The utility model relates to the technical field of projection devices, and proposes a projection device with an adjustment function, comprising a mounting block, wherein an adjustment box is fixedly connected to the bottom of the mounting block, and a groove is provided at the bottom of the adjustment box. Through the mutual cooperation of a support plate, a servo motor, a worm, a worm wheel, a threaded tube, a threaded rod, a movable plate and a connecting column, the height of a projector body can be adjusted to improve the use effect of the device. Through the mutual cooperation of a load-bearing plate, a driving motor, an active bevel gear, a driven bevel gear, a transmission rod, an incomplete gear, a rack plate, a half gear, a straight rod, a cleaning plate, a Velcro thorn-like surface, a Velcro hair-like surface and a cleaning cotton, the rack plate can be reciprocated left and right under the limitation of a first slide groove and a first slide block, and dust on the surface of a lens of the projector body can be cleaned by the cleaning cotton, thereby improving the projection effect of the device.

Description

Technical Field

[0001] The utility model relates to the technical field of projection devices, in particular to a projection device with an adjustment function. Background Art

[0002] A projector, also known as a projector, is a device that can project images or videos onto a screen. It can be connected to computers, VCDs, DVDs, BDs, game consoles, DVs, etc. through different interfaces to play corresponding video signals.

[0003] After searching, the existing patent (Announcement No. CN210979123U) discloses a multimedia classroom projection device with an adjustment device, including a main body, an external device box of the main body, the upper and lower sides of the main body are symmetrically fixed with a rotating shaft, and the rotating shaft is rotatably connected to the box through a bearing, and the outer wall of the rotating shaft is fixedly sleeved with a turbine, and one side of the turbine is meshed with a worm, and the bottom of the worm runs through the box. The multimedia classroom projection device with an adjustment device, through the cooperation of the turbine and the worm, can facilitate users to easily and quickly adjust the projection angle of the projection device and fix it, eliminating the operation of users manually turning the device for rotation adjustment, and also avoiding the situation that the rotating joint is often loosened after being turned. Through the cooperation of multiple compression springs and top rods, when the device shakes after adjustment, it can quickly absorb the vibration to stop the device from shaking, avoiding the long-term shaking of the projection picture affecting the user's use.

[0004] Most of the projectors in the classroom are installed at high places. When used for a long time, dust is easily accumulated on the projection lens, but the existing device is not easy to clean it, thereby reducing the projection effect of the device.

[0005] In view of this, the utility model provides a projection device with an adjustment function. Utility Model Content

[0006] The utility model provides a projection device with an adjustment function, which solves the above problem.

[0007] The technical solution of the utility model is as follows: a projection device with an adjustment function, comprising a mounting block, an adjustment box is fixedly connected to the bottom of the mounting block, a groove is provided at the bottom of the adjustment box, a fixed adjustment mechanism is provided in the inner cavity of the groove, a fixed frame is provided at the bottom of the adjustment box, a connecting plate is fixedly connected to the top of the inner cavity of the fixed frame near the rear side, a projector body is installed at the bottom of the inner cavity of the fixed frame, and a cleaning mechanism is provided on the front side of the projector body;

[0008] The cleaning mechanism comprises a load-bearing plate, the load-bearing plate is fixedly connected to the left side of the fixed frame near the middle position, the driving motor is fixedly connected to the top middle position of the load-bearing plate, the first bearing is fixedly connected to the left side of the inner cavity of the fixed frame near the top, the shaft end of the drive motor power output shaft passes through the inner cavity of the first bearing and is fixedly connected to an active bevel gear, the front side of the active bevel gear is meshed with a driven bevel gear, a transmission rod is penetrated at the front center of the driven bevel gear, the rear end of the transmission rod is movably connected to the front side of the connecting plate, the front end of the transmission rod is fixedly connected to an incomplete gear, the bottom of the incomplete gear is meshed with a rack plate, the top of the rack plate is meshed with a half gear near the right side, a straight rod is fixedly connected to the rear center of the half gear, the rear end of the straight rod is movably connected to the front side of the connecting plate, the bottom of the rack plate is fixedly connected to a cleaning plate, and a cleaning cotton is provided on the rear side of the cleaning plate.

[0009] Preferably, a Velcro thorn-like surface is fixedly connected to the rear side of the cleaning plate, a Velcro hair-like surface is attached to the rear side of the Velcro hair-like surface, and the rear side of the Velcro hair-like surface is fixedly connected to the cleaning cotton.

[0010] Preferably, a first slider is fixedly connected to the rear side of the rack plate, and a mounting plate is fixedly connected to the inner cavity of the fixed frame on the opposite side near the middle position. A first sliding groove is opened on the front side of the mounting plate, and the first slider is movably connected to the inner cavity of the first sliding groove.

[0011] Preferably, the adjustment mechanism includes a support plate, which is fixedly connected to the front side of the adjustment box near the top, and the top of the support plate is connected to a servo motor, and the end of the power output shaft of the servo motor is fixedly connected to a worm gear, and the inner cavity of the adjustment box is fixedly connected to second bearings at both the front and rear sides near the top, and the rear end of the worm gear passes through the inner cavity of the adjacent second bearing and is inserted into the inner cavity away from the second bearing.

[0012] Preferably, a worm wheel is meshed on the left side of the worm near the front and rear ends, a threaded tube is penetrated at the top center of the two worm wheels, the top ends of the two threaded tubes are movably connected to the top of the inner cavity of the adjusting box, the inner cavities of the two worm wheels are threadedly connected to threaded rods, the bottom ends of the two threaded rods are commonly fixedly connected to a movable plate, the bottom of the movable plate is fixedly connected to a plurality of connecting columns, and the plurality of connecting columns are fixedly connected to the fixed frame.

[0013] Preferably, a plurality of the connecting posts are arranged in a rectangular array with the bottom of the movable plate as the center.

[0014] Preferably, two second sliders are fixedly connected to the front and rear sides of the movable plate, and the two second sliders are arranged front and rear. Second sliding grooves are opened on the front and rear sides of the inner cavity of the adjustment box near the left and right sides, and several second sliders are movably connected to the inner cavities of adjacent second sliding grooves.

[0015] Preferably, a plurality of mounting holes are opened on the top of the mounting block, and the plurality of mounting holes are arranged in a rectangular array with the top of the mounting block as the center.

[0016] The working principle and beneficial effects of the utility model are:

[0017] 1. In the utility model, the supporting plate, the servo motor, the worm, the worm gear, the threaded tube, the threaded rod, the movable plate and the connecting column cooperate with each other, so that the movable plate can move downward under the limit of the adjacent second slide groove and the second slider, and the fixed frame can be moved downward by connecting a plurality of connecting columns fixed on the movable plate, so as to facilitate the adjustment of the height of the projector body and improve the use effect of the device;

[0018] 2. In the utility model, through the mutual cooperation of the load-bearing plate, the driving motor, the active bevel gear, the driven bevel gear, the transmission rod, the incomplete gear, the rack plate, the half gear, the straight rod, the cleaning plate, the Velcro thorn-like surface, the Velcro hair-like surface and the cleaning cotton, the rack plate can be reciprocated left and right under the limitation of the first slide groove and the first slider, and the dust on the surface of the projector body lens can be cleaned by the cleaning cotton, thereby improving the projection effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] Figure 1 It is a three-dimensional diagram of the utility model;

[0021] Figure 2 It is a cross-sectional view of the utility model;

[0022] Figure 3 It is a cross-sectional view of the fixing frame of the utility model;

[0023] Figure 4 It is a partial three-dimensional diagram of the cleaning plate, Velcro thorn-like surface, Velcro hair-like surface and cleaning cotton of the utility model;

[0024] Figure 5 For the utility model Figure 2 Enlarged view of point A in the middle.

[0025] In the figure: 1. mounting block; 2. adjustment box; 3. fixing frame; 4. projector body; 5. connecting plate; 6. supporting plate; 7. servo motor; 8. worm; 9. worm gear; 10. threaded tube; 11. threaded rod; 12. moving plate; 13. connecting column; 14. load-bearing plate; 15. driving motor; 16. active bevel gear; 17. driven bevel gear; 18. transmission rod; 19. incomplete gear; 20. rack plate; 21. half gear; 22. straight rod; 23. cleaning plate; 24. Velcro thorn surface; 25. Velcro hairy surface; 26. cleaning cotton. DETAILED DESCRIPTION

[0026] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Example 1

[0028] The preferred embodiment of the projection device with adjustment function provided by the utility model is as follows Figures 1 to 5 As shown: a projection device with an adjustment function, comprising a mounting block 1, an adjustment box 2 is fixedly connected to the bottom of the mounting block 1, a groove is provided at the bottom of the adjustment box 2, a fixed adjustment mechanism is provided in the inner cavity of the groove, a fixing frame 3 is provided at the bottom of the adjustment box 2, a connecting plate 5 is fixedly connected to the top of the inner cavity of the fixing frame 3 near the rear side, a projector body 4 is installed at the bottom of the inner cavity of the fixing frame 3, and a cleaning mechanism is provided on the front side of the projector body 4;

[0029] The cleaning mechanism includes a load-bearing plate 14, which is fixedly connected to the left side of the fixed frame 3 near the middle position, and a driving motor 15 is fixedly connected to the top middle position of the load-bearing plate 14. A first bearing is fixedly connected to the left side of the inner cavity of the fixed frame 3 near the top, and the end of the power output shaft of the driving motor 15 passes through the inner cavity of the first bearing and is fixedly connected to an active bevel gear 16. The front side of the active bevel gear 16 is meshed with a driven bevel gear 17, and the front center of the driven bevel gear 17 passes through a A transmission rod 18, the rear end of the transmission rod 18 is movably connected to the front side of the connecting plate 5, the front end of the transmission rod 18 is fixedly connected to an incomplete gear 19, the bottom of the incomplete gear 19 is meshed with a rack plate 20, the top of the rack plate 20 is meshed with a half gear 21 near the right side, a straight rod 22 is fixedly connected to the rear center of the half gear 21, the rear end of the straight rod 22 is movably connected to the front side of the connecting plate 5, the bottom of the rack plate 20 is fixedly connected to a cleaning plate 23, and a cleaning cotton 26 is provided on the rear side of the cleaning plate 23.

[0030] In this embodiment, the rear side of the cleaning plate 23 is fixedly connected to a Velcro thorny surface 24, the rear side of the Velcro thorny surface 24 is adhered to a Velcro furry surface 25, and the rear side of the Velcro furry surface 25 is fixedly connected to the cleaning cotton 26, which facilitates the replacement of the cleaning cotton 26 and improves the cleaning effect of the device.

[0031] In this embodiment, a first slider is fixedly connected to the rear side of the rack plate 20, and a mounting plate is fixedly connected to the inner cavity of the fixed frame 3 on the opposite side near the middle position. A first sliding groove is provided on the front side of the mounting plate, and the first slider is movably connected to the inner cavity of the first sliding groove, so as to limit the rack plate 20 when it moves.

[0032] Example 2

[0033] On the basis of Example 1, a preferred embodiment of the projection device with adjustment function provided by the present invention is as follows: Figures 1 to 5 As shown:

[0034] In this embodiment, the adjustment mechanism includes a support plate 6, which is fixedly connected to the front side of the adjustment box 2 near the top. The top of the support plate 6 is connected to a servo motor 7, and the end of the power output shaft of the servo motor 7 is fixedly connected to a worm 8. The inner cavity of the adjustment box 2 is fixedly connected to second bearings at both the front and rear sides near the top. The rear end of the worm 8 passes through the inner cavity of the adjacent second bearing and is inserted into the inner cavity away from the second bearing, so as to facilitate the rotation of the worm 8 and facilitate the adjustment work.

[0035] In this embodiment, a worm wheel 9 is meshed on the left side of the worm 8 near the front and rear ends, a threaded tube 10 is penetrated at the center of the top of the two worm wheels 9, the top ends of the two threaded tubes 10 are movably connected to the top of the inner cavity of the adjustment box 2, the inner cavities of the two worm wheels 9 are threadedly connected with threaded rods 11, the bottom ends of the two threaded rods 11 are commonly fixedly connected to a movable plate 12, the bottom of the movable plate 12 is fixedly connected with a plurality of connecting columns 13, and the plurality of connecting columns 13 are fixedly connected to the fixed frame 3, which is convenient for moving the fixed frame 3 downward, and then convenient for adjusting the height of the projector body 4, thereby improving the use effect of the device.

[0036] In this embodiment, a plurality of connection posts 13 are arranged in a rectangular array with the bottom of the movable plate 12 as the center, so as to improve the connection stability of the fixed frame 3 .

[0037] In this embodiment, two second sliders are fixedly connected to the front and rear sides of the movable plate 12, and the two second sliders are arranged front and rear. Second sliding grooves are opened on the front and rear sides of the inner cavity of the adjustment box 2 near the left and right sides, and several second sliders are movably connected to the inner cavities of adjacent second sliding grooves, so as to limit the movable plate 12 when it moves.

[0038] In this embodiment, a plurality of mounting holes are provided on the top of the mounting block 1 , and the plurality of mounting holes are arranged in a rectangular array with the top of the mounting block 1 as the center, so as to facilitate the installation between the mounting block 1 and the wall.

[0039] The working principle and use process of the utility model are as follows: first, through the several mounting holes opened on the mounting block 1, the mounting block 1 is conveniently installed on the wall through the use of external tools and the several mounting holes, and the projector body 4 is installed on the bottom of the inner cavity of the fixed frame 3. When the angle of the projector body 4 needs to be adjusted, the servo motor 7 is started at this time, and the rotation of the power output shaft of the servo motor 7 drives the worm 8 fixed on the shaft end of the power output shaft of the servo motor 7 to rotate, thereby rotating the two worm wheels 9 meshing with the worm 8, thereby rotating the adjacent threaded tubes 10, and the threaded rods 11 threadedly connected in the inner cavities of the adjacent threaded tubes 10 jointly move the movable plate 12 downward under the limit of the second slide groove and the second slider, and are connected with several connecting columns 13 fixed on the movable plate 12, so as to facilitate the height adjustment of the projector body 4 and improve the use effect of the device. After the projector body 4 has been used for a period of time, the external power supply of the drive motor 15 is turned on, and the drive motor The rotation of the power output shaft 15 drives the active bevel gear 16 fixed on the shaft end of the power output shaft of the driving motor 15 to rotate, thereby rotating the driven bevel gear 17 meshing therewith, thereby rotating the transmission rod 18, thereby rotating the incomplete gear 19 fixed on the transmission rod 18, so that the rack plate 20 meshing with the incomplete gear 19 moves to the left under the limit of the first slide groove and the first slider. When the rack plate 20 moves to the left, the half gear 21 rotates. When the incomplete gear 19 rotates to the moving degree, the half gear 21 rotates counterclockwise, thereby moving the rack plate 20 to the right under the limit of the first slide groove and the first slider. In summary, the rack plate 20 reciprocates left and right, and the dust on the surface of the lens of the projector body 4 is cleaned by the cleaning cotton 26 to improve the projection effect of the device. The Velcro thorn-like surface 24 and the Velcro hair-like surface 25 are provided to facilitate the disassembly and replacement of the cleaning cotton 26 to avoid the residual dust on the surface of the cleaning cotton 26 after cleaning, which affects the effect of subsequent cleaning.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A projection device with an adjustment function, comprising a mounting block (1), characterized in that: The bottom of the mounting block (1) is fixedly connected to an adjustment box (2), the bottom of the adjustment box (2) is provided with a groove, the inner cavity of the groove is provided with a fixed adjustment mechanism, the bottom of the adjustment box (2) is provided with a fixed frame (3), the top of the inner cavity of the fixed frame (3) is fixedly connected with a connecting plate (5) near the rear side, the bottom of the inner cavity of the fixed frame (3) is installed with a projector body (4), and the front side of the projector body (4) is provided with a cleaning mechanism; The cleaning mechanism comprises a load-bearing plate (14), the load-bearing plate (14) being fixedly connected to a left side of the fixed frame (3) near the middle position, a driving motor (15) being fixedly connected to a top middle position of the load-bearing plate (14), a first bearing being fixedly connected to a left side of the inner cavity of the fixed frame (3) near the top, a power output shaft end of the driving motor (15) passing through the inner cavity of the first bearing and being fixedly connected to a driving bevel gear (16), a driven bevel gear (17) being meshed at the front side of the driving bevel gear (16), and a transmission rod (18) passing through the center of the front side of the driven bevel gear (17) The rear end of the transmission rod (18) is movably connected to the front side of the connecting plate (5), the front end of the transmission rod (18) is fixedly connected to an incomplete gear (19), the bottom of the incomplete gear (19) is meshed with a rack plate (20), the top of the rack plate (20) is meshed with a half gear (21) near the right side, the rear center of the half gear (21) is fixedly connected to a straight rod (22), the rear end of the straight rod (22) is movably connected to the front side of the connecting plate (5), the bottom of the rack plate (20) is fixedly connected to a cleaning plate (23), and the rear side of the cleaning plate (23) is provided with a cleaning cotton (26).

2. The projection device with adjustment function according to claim 1, characterized in that: The rear side of the cleaning plate (23) is fixedly connected with a Velcro thorn-shaped surface (24), the rear side of the Velcro thorn-shaped surface (24) is attached with a Velcro fur-shaped surface (25), and the rear side of the Velcro fur-shaped surface (25) is fixedly connected with a cleaning cotton (26).

3. The projection device with adjustment function according to claim 1, characterized in that: A first sliding block is fixedly connected to the rear side of the rack plate (20), and a mounting plate is fixedly connected to the inner cavity of the fixed frame (3) at a position near the middle on the opposite side thereof. A first sliding groove is provided on the front side of the mounting plate, and the first sliding block is movably connected to the inner cavity of the first sliding groove.

4. The projection device with adjustment function according to claim 1, characterized in that: The adjustment mechanism comprises a support plate (6), the support plate (6) is fixedly connected to the front side of the adjustment box (2) near the top, the top of the support plate (6) is fixedly connected to a servo motor (7), the end of the power output shaft of the servo motor (7) is fixedly connected to a worm (8), the front and rear sides of the inner cavity of the adjustment box (2) near the top are fixedly connected to second bearings, and the rear end of the worm (8) passes through the inner cavity of the adjacent second bearing and is inserted into the inner cavity away from the second bearing.

5. The projection device with adjustment function according to claim 4, characterized in that: The left side of the worm (8) is meshed with a worm wheel (9) near the front and rear ends, and a threaded tube (10) is penetrated at the center of the top of the two worm wheels (9). The top ends of the two threaded tubes (10) are movably connected to the top of the inner cavity of the adjustment box (2). The inner cavities of the two worm wheels (9) are threadedly connected with threaded rods (11). The bottom ends of the two threaded rods (11) are fixedly connected to a movable plate (12). The bottom of the movable plate (12) is fixedly connected to a plurality of connecting columns (13), and the plurality of connecting columns (13) are fixedly connected to the fixed frame (3).

6. The projection device with adjustment function according to claim 5, characterized in that: A plurality of the connecting columns (13) are arranged in a rectangular array with the bottom of the moving plate (12) as the center.

7. The projection device with adjustment function according to claim 5, characterized in that: The movable plate (12) is fixedly connected to two second sliding blocks on both the front and rear sides. The two second sliding blocks are arranged front and rear. Second sliding grooves are provided on both the front and rear sides of the inner cavity of the adjustment box (2) near the left and right sides. A plurality of the second sliding blocks are movably connected to the inner cavities of adjacent second sliding grooves.

8. The projection device with adjustment function according to claim 1, characterized in that: A plurality of mounting holes are provided on the top of the mounting block (1), and the plurality of mounting holes are arranged in a rectangular array with the top of the mounting block (1) as the center.

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