A projection video device capable of automatically adjusting the projection area for smart office meetings

Abstract

The present invention discloses a projection video device for smart office meetings that can automatically adjust the projection area, comprising a fixed frame, a support frame mounted on the left side of the upper end of the fixed frame, self-locking universal wheels fixedly installed at the four corners of the lower end of the fixed frame, a transmission mechanism arranged in the fixed frame, a steering mechanism inserted and connected to the right side of the upper end of the fixed frame, the steering mechanism movably installed with the fixed frame through a bearing and connected to the transmission mechanism by transmission, a driving mechanism slidably installed on the left side of the front end of the steering mechanism, an angle adjustment mechanism movably installed in the upper part of the steering mechanism through a bearing, and the angle adjustment mechanism is connected to the driving mechanism by transmission, and a projector is detachably installed on the upper end of the angle adjustment mechanism. The projection video device for smart office meetings that can automatically adjust the projection area of ​​the present invention can fix projectors of different specifications, is easy to disassemble and install, and can realize projection of projectors at different angles and orientations, with precise adjustment and stable transmission.

Description

Technical Field

[0001] The present invention relates to the field of projection technology, and in particular to a projection video device capable of automatically adjusting a projection area for smart office meetings. Background Art

[0002] A projection device is an optical instrument that uses optical elements to magnify the object to be projected, such as an image or video, and project it onto a screen. Some projection devices can be connected to computers, VCDs, DVDs, BDs, game consoles, DVs, etc. through different interfaces to play corresponding video signals. Other projection devices can be connected to WiPlug, and then the computer, mobile phone or pad can be connected to the same WIFI as WiPlug, and then the content on your computer, mobile phone or pad can be synchronously displayed on the screen of the projection device. Therefore, projection devices are currently widely used in homes, offices, schools, entertainment venues, etc.

[0003] At present, the projection devices on the market have the following disadvantages during use: 1. It is inconvenient to install and disassemble the projector, and maintenance is difficult; 2. The projection angle and direction of the projection image cannot be adjusted. If you want to adjust the projection direction of the projection image, you need to move the projection device itself, which is not a good user experience. Therefore, we propose a projection video device that can automatically adjust the projection area for smart office meetings. Summary of the invention

[0004] The main purpose of the present invention is to provide a projection video device for smart office meetings that can automatically adjust the projection area, which can effectively solve the problems in the background technology.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A projection video device capable of automatically adjusting the projection area for use in a smart office meeting, comprising a fixed frame, a support frame mounted on the left side of the upper end of the fixed frame, self-locking universal wheels fixedly mounted at the four corners of the lower end of the fixed frame, a transmission mechanism arranged in the fixed frame, a handle fixedly mounted on the upper left end of the support frame, a steering mechanism inserted and connected to the right side of the upper end of the fixed frame, the steering mechanism movably mounted on the fixed frame through a bearing and transmission-connected with the transmission mechanism, a driving mechanism slidably mounted on the left side of the front end of the steering mechanism, an angle adjustment mechanism movably mounted on the upper inner part of the steering mechanism through a bearing, and the angle adjustment mechanism is transmission-connected with the driving mechanism, a No. 1 slide bar is fixedly welded on both the front and rear sides of the upper end of the steering mechanism, a protective cover is slidably mounted between the two No. 1 slide bars, and a projector is detachably mounted on the upper end of the angle adjustment mechanism;

[0007] The angle adjustment mechanism includes a mounting rod, on which a fixed platform and two limit stop rings are fixedly mounted, and the two limit stop rings are respectively located at the front and rear sides of the mounting rod, a transmission rod is fixedly mounted at the front end of the mounting rod, and a slider is fixedly mounted on the side of the front end of the transmission rod away from the mounting rod, movable grooves are opened on the left and right sides of the upper end of the fixed platform, two clamping assemblies are slidably mounted between the two movable grooves, and the two clamping assemblies are symmetrically distributed front and back, and the projector is detachably mounted on the upper end of the fixed platform through the two clamping assemblies.

[0008] As a further improvement of the above scheme, the transmission mechanism includes a forward and reverse motor, which is fixedly installed in a fixed frame. A rotating rod is fixedly installed on the output end of the forward and reverse motor. The upper end of the rotating rod is movably installed with the upper end of the fixed frame through a bearing, and a driving gear is fixedly installed on the upper part of the rotating rod.

[0009] As a further improvement of the above scheme, the steering mechanism includes a movable frame, a support plate is fixedly installed on the lower front end of the movable frame, two No. 2 slide bars are fixedly installed on the left front end of the movable frame, a transmission gear is movably installed on the lower end of the movable frame through a rotating shaft, and the No. 1 slide bar is fixedly installed on the upper end of the movable frame.

[0010] As a further improvement of the above solution, the transmission gear is located in the fixing frame and is located in the same plane as the driving gear. The transmission gear is meshed with the driving gear to connect the steering mechanism with the transmission mechanism.

[0011] As a further improvement of the above scheme, the driving mechanism includes a movable plate, and sliding grooves are opened on both sides of the left and right sides of the rear end of the movable plate, and electric telescopic rods are fixedly installed on both sides of the left and right sides of the lower front end of the movable plate. A transmission plate is detachably installed on the front end of the movable plate, and a limit groove that passes through the front and rear is opened on the right side of the front end of the transmission plate.

[0012] As a further improvement of the above scheme, the structure of the slide groove is compatible with the structure of the second slide bar and the position corresponds to that of the second slide bar. The slide groove is slidably installed on the corresponding second slide bar and the lower ends of the two electric telescopic rods are fixedly installed on the upper end of the support plate.

[0013] As a further improvement of the above solution, the mounting rod is movably mounted on the movable frame via a bearing, and the sliding block is slidably connected in the limiting groove to transmission-connect the angle adjustment mechanism with the driving mechanism.

[0014] As a further improvement of the above scheme, the clamping assembly includes a clamping plate, and movable blocks are integrally formed on the left and right sides of the lower end of the clamping plate, and fastening screws are inserted and connected on the left and right sides of the upper end of the clamping plate. The movable blocks are slidably installed in the corresponding movable grooves and the clamping plate is fixedly installed on the upper end of the fixed platform by the fastening screws.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In the present invention, the movable block slides in the corresponding movable groove to make the clamping plate slide on the upper end of the fixed platform, and the projector is clamped and fixed by the cooperation of the two clamping plates, and then the clamping plate is fixed by the fastening screw. The operation is convenient, and projectors of different specifications can be fixed, and the projector can be conveniently disassembled and installed. The setting of the protective cover can protect the projector, avoid collision and dust adhesion, and extend the service life.

[0017] 2. In the present invention, the driving mechanism and the angle adjustment mechanism cooperate with each other, the electric telescopic rod is extended, and slides on the corresponding No. 2 slide bar through the slide groove, so that the transmission plate moves upward. At this time, the slider slides in the limit groove to drive the slider to rotate the transmission rod, so that the transmission rod drives the installation rod to rotate the fixed platform, and then drives the projector fixedly installed on the upper end of the fixed platform to rotate, so as to adjust the angle of the projector, realize projection of different angles of the projector, and have stable transmission.

[0018] 3. In the present invention, the transmission mechanism is connected with the steering mechanism, the forward and reverse motors drive the rotating rod to rotate the driving gear, and the driving gear and the transmission gear are engaged to drive the movable frame to rotate, so that the movable frame drives the angle adjustment mechanism to rotate, so as to realize projection of the projector in different directions, and the angle adjustment is realized by gear engagement, with compact structure, stable transmission and precise adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0020] Figure 1 A schematic diagram of a storage state of a projection video device capable of automatically adjusting the projection area for a smart office meeting according to the present invention;

[0021] Figure 2 A schematic diagram of the use status of a projection video device capable of automatically adjusting the projection area for a smart office meeting according to the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of a driving mechanism of a projection video device capable of automatically adjusting the projection area for a smart office meeting of the present invention;

[0023] Figure 4It is a structural schematic diagram of a steering mechanism of a projection video device capable of automatically adjusting the projection area for a smart office meeting of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of a driving mechanism of a projection video device capable of automatically adjusting the projection area for a smart office meeting of the present invention;

[0025] Figure 6 It is a structural schematic diagram of an angle adjustment mechanism of a projection video device capable of automatically adjusting the projection area for a smart office meeting of the present invention;

[0026] Figure 7 The present invention is a schematic structural diagram of a clamping assembly of a projection video device capable of automatically adjusting the projection area for smart office meetings.

[0027] In the figure: 1. fixed frame; 2. self-locking universal wheel; 3. transmission mechanism; 4. steering mechanism; 5. driving mechanism; 6. angle adjustment mechanism; 7. No. 1 slide bar; 8. protective cover; 9. support frame; 10. handle; 11. projector; 31. forward and reverse motor; 32. rotating rod; 33. driving gear; 41. movable frame; 42. support plate; 43. No. 2 slide bar; 44. transmission gear; 51. movable plate; 52. slide groove; 53. electric telescopic rod; 54. transmission plate; 55. limiting groove; 61. mounting rod; 62. fixed table; 63. limiting retaining ring; 64. transmission rod; 65. slider; 66. clamping assembly; 67. movable groove; 661. clamping plate; 662. movable block; 663. fastening screw. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0029] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the 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 limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The technical solution of the present invention is further described below in conjunction with the accompanying drawings.

[0032] Example

[0033] A projection video device capable of automatically adjusting the projection area for use in smart office meetings, such as Figure 1-2 As shown, it includes a fixing frame 1, a supporting frame 9 mounted on the left side of the upper end of the fixing frame 1, self-locking universal wheels 2 are fixedly installed at the four corners of the lower end of the fixing frame 1, a transmission mechanism 3 is arranged inside the fixing frame 1, a handle 10 is fixedly installed on the upper left end of the supporting frame 9, a steering mechanism 4 is inserted and connected on the right side of the upper end of the fixing frame 1, the steering mechanism 4 is movably installed with the fixing frame 1 through a bearing and is transmission-connected with the transmission mechanism 3, a driving mechanism 5 is slidably installed on the left side of the front end of the steering mechanism 4, an angle adjustment mechanism 6 is movably installed on the upper part of the steering mechanism 4 through a bearing, and the angle adjustment mechanism 6 is transmission-connected with the driving mechanism 5, a No. 1 slide bar 7 is fixedly welded on both the front and rear sides of the upper end of the steering mechanism 4, a protective cover 8 is slidably installed between the two No. 1 slide bars 7, and a projector 11 is detachably installed on the upper end of the angle adjustment mechanism 6.

[0034] like Figure 3-4 As shown, a rotating rod 32 is fixedly installed at the output end of the forward and reverse motor 31, and the upper end of the rotating rod 32 is movably installed with the upper end of the fixed frame 1 through a bearing, and a driving gear 33 is fixedly installed on the upper part of the rotating rod 32; the steering mechanism 4 includes a movable frame 41, a support plate 42 is fixedly installed at the lower front end of the movable frame 41, two No. 2 slide bars 43 are fixedly installed on the left side of the front end of the movable frame 41, and a transmission gear 44 is movably installed at the lower end of the movable frame 41 through a rotating shaft, and the No. 1 slide bar 7 is fixedly installed with the upper end of the movable frame 41; the transmission gear 4 4 is located in the fixed frame 1 and is located in the same plane as the driving gear 33. The transmission gear 44 is engaged with the driving gear 33 to connect the steering mechanism 4 with the transmission mechanism 3. The forward and reverse motor 31 drives the rotating rod 32 to rotate the driving gear 33, and the driving gear 33 is engaged with the transmission gear 44 to drive the movable frame 41 to rotate, so that the movable frame 41 drives the angle adjustment mechanism 6 to rotate, so as to realize the projection of the projector 11 in different directions. The angle adjustment is realized by the gear engagement, and the structure is compact, the transmission is stable, and the adjustment is precise.

[0035] like Figure 5-6 As shown, the angle adjustment mechanism 6 includes a mounting rod 61, on which a fixed platform 62 and two limit rings 63 are fixedly installed, and the two limit rings 63 are respectively located at the front and rear sides of the mounting rod 61, a transmission rod 64 is fixedly installed at the front end of the mounting rod 61, and a slider 65 is fixedly installed on the side of the front end of the transmission rod 64 away from the mounting rod 61, and the upper end of the fixed platform 62 is provided with movable grooves 67 on both sides, and two clamping assemblies 66 are slidably installed between the two movable grooves 67, and the two clamping assemblies 66 are symmetrically distributed front and back, and the projector 11 is detachably mounted on the upper end of the fixed platform 62 through the two clamping assemblies 66; the transmission mechanism 3 includes a forward and reverse motor 31, and the forward and reverse motor 31 is fixedly installed in the fixed frame 1; the driving mechanism 5 includes a moving plate 51, and the left and right sides of the rear end of the moving plate 51 are provided with slide grooves 52, and the left and right sides of the lower front end of the moving plate 51 are fixedly installed with electric telescopic rods 53, and the front end of the moving plate 51 is detachably installed with a transmission plate 54, and the front end of the transmission plate 54 The right side of the end is provided with a limit groove 55 that passes through the front and back; the structure of the slide groove 52 is adapted to the structure of the second slide bar 43 and the position corresponds to that of the slide groove 52, the slide groove 52 is slidably installed on the corresponding second slide bar 43 and the lower ends of the two electric telescopic rods 53 are fixedly installed on the upper end of the support plate 42; the mounting rod 61 is movably installed with the movable frame 41 through a bearing, and the slider 65 is slidably connected in the limit groove 55 to transmit and connect the angle adjustment mechanism 6 with the driving mechanism 5; through the cooperation between the driving mechanism 5 and the angle adjustment mechanism 6, the electric telescopic rod 53 is extended, and the slide groove 52 slides on the corresponding second slide bar 43, so that the transmission plate 54 moves upward, at this time, the slider 65 slides in the limit groove 55 so that the slider 65 drives the transmission rod 64 to rotate, thereby driving the mounting rod 61 through the transmission rod 64 to rotate the fixed platform 62, and then driving the projector 11 fixedly installed on the upper end of the fixed platform 62 to rotate, so as to adjust the angle of the projector 11, and realize the projection of the projector 11 at different angles, and the transmission is stable.

[0036] like Figure 7 As shown, the clamping assembly 66 includes a clamping plate 661, and movable blocks 662 are integrally formed on the left and right sides of the lower end of the clamping plate 661, and fastening screws 663 are inserted and connected on the left and right sides of the upper end of the clamping plate 661. The movable block 662 is slidably installed in the corresponding movable groove 67 and the clamping plate 661 is fixedly installed on the upper end of the fixed platform 62 by the fastening screw 663; the movable block 662 slides in the corresponding movable groove 67 to make the clamping plate 661 slide on the upper end of the fixed platform 62, and the projector 11 is clamped and fixed by the cooperation of the two clamping plates 661, and then the clamping plate 661 is fixed by the fastening screw 663. The operation is convenient, and projectors 11 of different specifications can be fixed, and the projector 11 is convenient to disassemble and install.

[0037] In the specific use process of this embodiment, the projector 11 is placed on the upper end of the fixed platform 62, and the movable block 662 slides in the corresponding movable groove 67 to make the clamping plate 661 slide on the upper end of the fixed platform 62. The projector 11 is clamped and fixed by the cooperation of the two clamping plates 661, and then the clamping plate 661 is fixed by the fastening screw 663. The operation is convenient, and projectors 11 of different specifications can be fixed, and the projector 11 can be conveniently disassembled and installed. The driving mechanism 5 and the angle adjustment mechanism 6 cooperate with each other, and the electric telescopic rod 53 is extended, and the slide groove 52 slides on the corresponding No. 2 slide bar 43 to make the transmission plate 54 move upward. At this time, the slider 65 slides in the limit groove 55 to drive the slider 65 to drive the transmission rod 64 The projector 11 is fixedly mounted on the upper end of the fixed platform 62, and the projector 11 is rotated to achieve the adjustment of the angle of the projector 11. The projection of the projector 11 at different angles can be achieved. The transmission is stable. The transmission mechanism 3 is connected to the steering mechanism 4 through the transmission. When the projection orientation of the projector 11 needs to be adjusted, the forward and reverse motors 31 are turned on. The forward and reverse motors 31 drive the rotating rod 32 to rotate the driving gear 33. The driving gear 33 is engaged with the transmission gear 44 to drive the movable frame 41 to rotate, so that the movable frame 41 drives the angle adjustment mechanism 6 to rotate, so that the projection of the projector 11 at different orientations can be achieved. The angle adjustment is achieved through gear meshing. The structure is compact, the transmission is stable, and the adjustment is precise.

[0038] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A projection video device capable of automatically adjusting the projection area for use in a smart office meeting, comprising a fixing frame (1), and a support frame (9) mounted on the left side of the upper end of the fixing frame (1), characterized in that: Self-locking universal wheels (2) are fixedly mounted at the four corners of the lower end of the fixing frame (1), a transmission mechanism (3) is arranged inside the fixing frame (1), a handle (10) is fixedly mounted on the upper left end of the support frame (9), a steering mechanism (4) is inserted and connected to the right side of the upper end of the fixing frame (1), the steering mechanism (4) is movably mounted on the fixing frame (1) through a bearing and is transmission-connected to the transmission mechanism (3), a driving mechanism (5) is slidably mounted on the left side of the front end of the steering mechanism (4), an angle adjustment mechanism (6) is movably mounted on the upper inner part of the steering mechanism (4) through a bearing, and the angle adjustment mechanism (6) is transmission-connected to the driving mechanism (5), a No. 1 slide bar (7) is fixedly welded on both front and rear sides of the upper end of the steering mechanism (4), a protective cover (8) is slidably mounted between the two No. 1 slide bars (7), and a projector (11) is detachably mounted on the upper end of the angle adjustment mechanism (6); The angle adjustment mechanism (6) comprises a mounting rod (61), a fixing platform (62) and two limit retaining rings (63) are fixedly mounted on the mounting rod (61), and the two limit retaining rings (63) are respectively located at the front and rear sides of the mounting rod (61), a transmission rod (64) is fixedly mounted on the front end of the mounting rod (61), a sliding block (65) is fixedly mounted on the front end of the transmission rod (64) away from the mounting rod (61), and movable grooves (67) are formed on both left and right sides of the upper end of the fixing platform (62), and two clamping assemblies (66) are slidably mounted between the two movable grooves (67), and the two clamping assemblies (66) are symmetrically distributed frontward and rearward, and the projector (11) is detachably mounted on the upper end of the fixing platform (62) via the two clamping assemblies (66); The transmission mechanism (3) comprises a forward and reverse motor (31), the forward and reverse motor (31) being fixedly mounted in a fixing frame (1), a rotating rod (32) being fixedly mounted on an output end of the forward and reverse motor (31), an upper end of the rotating rod (32) being movably mounted on an upper end of the fixing frame (1) via a bearing, and a driving gear (33) being fixedly mounted on an upper portion of the rotating rod (32); The steering mechanism (4) comprises a movable frame (41), a support plate (42) is fixedly mounted at the lower front end of the movable frame (41), two No. 2 slide bars (43) are fixedly mounted on the left side of the front end of the movable frame (41), a transmission gear (44) is movably mounted on the lower end of the movable frame (41) via a rotating shaft, and the No. 1 slide bar (7) is fixedly mounted on the upper end of the movable frame (41); The driving mechanism (5) comprises a moving plate (51), the rear end of the moving plate (51) is provided with sliding grooves (52) on both left and right sides, the lower front end of the moving plate (51) is provided with electric telescopic rods (53) fixedly mounted on both left and right sides, the front end of the moving plate (51) is provided with a transmission plate (54) detachably mounted on the front end of the moving plate (51), and the front end of the transmission plate (54) is provided with a limiting groove (55) penetrating forward and backward on the right side.

2. According to claim 1, a projection video device capable of automatically adjusting the projection area for smart office meetings is characterized by: The transmission gear (44) is located in the fixing frame (1) and is located in the same plane as the driving gear (33); the transmission gear (44) is meshed with the driving gear (33) to transmit and connect the steering mechanism (4) and the transmission mechanism (3).

3. According to claim 1, a projection video device capable of automatically adjusting the projection area for use in smart office meetings is characterized in that: The structure of the slide groove (52) is compatible with the structure of the second slide bar (43) and the position thereof corresponds to that of the second slide bar (43). The slide groove (52) is slidably mounted on the corresponding second slide bar (43) and the lower ends of the two electric telescopic rods (53) are fixedly mounted on the upper end of the support plate (42).

4. According to claim 1, a projection video device capable of automatically adjusting the projection area for use in smart office meetings, characterized in that: The mounting rod (61) is movably mounted via a bearing and a movable frame (41), and the sliding block (65) is slidably connected in the limiting groove (55) to transmission-connect the angle adjustment mechanism (6) to the driving mechanism (5).

5. According to claim 1, a projection video device capable of automatically adjusting the projection area for use in smart office meetings, characterized in that: The clamping assembly (66) comprises a clamping plate (661), wherein movable blocks (662) are integrally formed on both left and right sides of the lower end of the clamping plate (661), and fastening screws (663) are inserted and connected on both left and right sides of the upper end of the clamping plate (661), wherein the movable blocks (662) are slidably mounted in corresponding movable grooves (67) and the clamping plate (661) is fixedly mounted on the upper end of the fixed platform (62) by means of the fastening screws (663).

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