A multi-directional moving device for projection display device

Abstract

A multi-directional mobile device for projection display device, the present invention relates to the field of projection display technology, a plurality of mounting screws are screwed on the chassis, a suspension rod is fixed on the lower surface of the chassis, the lower end of the suspension rod is fixed on the slider, the slider is slidably arranged on the guide rail, the guide rail is fixed on the bottom plate, a No. 1 magnetic bead is fixed on the lower surface of both ends of the bottom plate, the No. 1 magnetic bead is movably clamped in a circular groove opened on the upper surface of the mounting ring, a screw seat is fixed on both ends of the guide rail, the two ends of the screw rod are screwed in the screw seat by bearings, and one end of the screw rod passes through the lower end of the suspension rod and the screw seat on one side in turn, and is connected to the output shaft of the motor. It can meet the use of different display screens within multiple distances, has strong adjustability, and increases the scope of application.

Description

Technical Field

[0001] The invention relates to the technical field of projection display, and in particular to a multi-directional moving device for a projection display device. Background Art

[0002] A projection display device generally includes a projector and a display screen. Currently, the distance between a suspended projector and the display screen is fixed to ensure that the content projected onto the display screen has good brightness, resolution, and uniformity. Therefore, generally, after a projector is installed and fixed in position, it is only applicable to a display screen at a distance that matches it. It cannot be applied to display screens at multiple distances, which limits its scope of application. Summary of the invention

[0003] The purpose of the present invention is to provide a reasonably designed multi-directional mobile device for projection display device in view of the defects and shortcomings of the prior art, which can meet the use of different display screens within multiple distances, has strong adjustability, and increases the scope of application.

[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: it comprises mounting screws, a chassis, a suspension rod, a motor, a motor bracket, a mounting ring, a slider, a projector mounting frame, a base plate, a screw seat, a guide rail, a screw rod, a cross bar, a No. 1 magnet bead, a No. 2 magnet bead and a battery; a plurality of mounting screws are screwed on the chassis, a suspension rod is fixed on the lower surface of the chassis, the lower end of the suspension rod is fixed on the slider, the slider is slidably arranged on the guide rail, the guide rail is fixed on the base plate, a No. 1 magnet bead is fixed on the lower surface of both ends of the base plate, and the No. 1 magnet bead is movably clamped on the upper surface of the mounting ring. In the circular groove, both ends of the guide rail are fixed with screw seats, both ends of the screw are screwed in the screw seats by bearings, and one end of the screw passes through the lower end of the suspension rod and the screw seat on one side in turn, and is connected to the output shaft of the motor, the screw thread is screwed in the lower end of the suspension rod, the motor is fixed to the base plate by the motor bracket, the motor is electrically connected to the battery, and the battery is fixed to the base plate; an annular groove is provided on the inner ring wall of the mounting ring, and No. 2 magnet beads are fixed at both ends of the cross bar, and the No. 2 magnet beads are slidably clamped in the annular groove, and the lower surface of the cross bar is movably connected to the projector by the projector mounting frame.

[0005] Furthermore, the boom is composed of a fixed boom, a movable boom and an electric telescopic rod No. 1; the upper end of the fixed boom is fixed on the bottom wall of the chassis, and an electric telescopic rod No. 1 is embedded in the lower end of the fixed boom, the output end of the electric telescopic rod No. 1 is connected to the upper end of the movable boom, the lower end of the movable boom is fixed on the slider, and the electric telescopic rod No. 1 is electrically connected to the battery.

[0006] Furthermore, the mounting screw is detachably connected to a universal wheel, an internally threaded sleeve rod is fixed to the mounting seat of the universal wheel, and the internally threaded sleeve rod is threadedly connected to the mounting screw.

[0007] Furthermore, a sealing strip is movably embedded in the circular groove.

[0008] Furthermore, a controller with a wireless transceiver is fixed on the outer wall of the mounting ring, and the controller is electrically connected to the motor and the No. 1 electric telescopic rod respectively, and the controller utilizes the wireless transceiver therein to remotely control the controller with an external remote controller.

[0009] Furthermore, the bottom surface of the base plate and the bottom surface of the cross bar are both provided with pull rods, and the pull rods are composed of a No. 2 electric telescopic rod, an outer rod, an inner rod, a torsion spring and a magnet block; a magnet block is fixed to the top wall of the No. 2 electric telescopic rod, and the No. 2 electric telescopic rod is detachably connected to the cross bar and the bottom surface of the base plate by means of the magnet block, the output end of the No. 2 electric telescopic rod is connected to the outer rod, the axial hole at the lower end of the outer rod is inserted and rotated with the rotating shaft at the end of the inner rod, and a torsion spring is sleeved on one of the rotating shafts of the inner rod, one end foot of the torsion spring is fixed to the shaft, and the other end angle of the torsion spring is fixed to the inner wall of the axial hole, the above-mentioned No. 2 electric telescopic rod is electrically connected to the battery, and the No. 2 electric telescopic rod is electrically connected to the controller.

[0010] The working principle of the present invention is as follows: the chassis is installed on the indoor ceiling by using the installation screws, the motor is started, the screw rod is driven to rotate, thereby driving the slider to slide relative to the guide rail, so as to adjust the distance between the installation ring and the projection screen; the installation ring is rotated, the bottom plate is located on the installation ring with the No. 1 magnetic bead at the bottom and rotated to a suitable angle, and is positioned by magnetic adsorption; then the cross bar is rotated, the No. 2 magnetic beads at both ends of the cross bar are located in the installation ring and rotated to a suitable angle, and are positioned by magnetic adsorption; the installation ring and the cross bar are combined and rotated with each other to achieve the adjustment of different projection angles of the projector on the horizontal plane.

[0011] After adopting the above structure, the beneficial effect of the present invention is: the present invention provides a multi-directional moving device for a projection display device, which can meet the use of different display screens within multiple distances, has strong adjustability, and increases the scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the present invention.

[0013] Figure 2 yes Figure 1 Top view of the .

[0014] Figure 3 yes Figure 2 AA section view.

[0015] Figure 4 It is a schematic diagram of the structure of the cross bar and the second magnetic bead in the present invention.

[0016] Figure 5 It is a structural schematic diagram of the outer rod in the present invention.

[0017] Figure 6 It is a structural schematic diagram of the inner rod in the present invention.

[0018] Figure 7 It is a structural schematic diagram of the universal wheel in the present invention.

[0019] Figure 8 It is a schematic structural diagram of an embodiment.

[0020] Description of reference numerals:

[0021] Mounting screws 1, chassis 2, suspension rod 3, fixed suspension rod 3-1, movable suspension rod 3-2, motor 4, motor bracket 5, mounting ring 6, circular groove 6-1, annular groove 6-2, slider 7, projector mounting frame 8, base plate 9, screw seat 10, guide rail 11, screw rod 12, cross bar 13, No. 1 electric telescopic rod 14, No. 1 magnet bead 15, No. 2 magnet bead 16, internal threaded sleeve rod 17, universal wheel 18, projector 19, battery 20, controller 21, sealing strip 22, pull rod 23, No. 2 electric telescopic rod 23-1, outer rod 23-2, inner rod 23-3, torsion spring 23-4, magnet block 23-5. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] like Figure 1-Figure 7As shown, this specific embodiment adopts the following technical scheme: it includes mounting screws 1, chassis 2, suspension rod 3, motor 4, motor bracket 5, mounting ring 6, slider 7, projector mounting frame 8, base plate 9, screw seat 10, guide rail 11, screw rod 12, cross bar 13, No. 1 magnet bead 15, No. 2 magnet bead 16 and battery 20; four mounting screws 1 are screwed on the chassis 2, and the suspension rod 3 is composed of a fixed suspension rod 3-1, a movable suspension rod 3-2 and a No. 1 electric telescopic rod 14; the upper end of the fixed suspension rod 3-1 is welded and fixed to the bottom wall of the chassis 2, and a No. 1 electric telescopic rod is embedded in the lower end of the fixed suspension rod 3-1 and fixed by screws and rivets. The output end of the No. 1 electric telescopic rod 14 is fixed to the upper end of the movable suspension rod 3-2 by screw riveting, and the lower end of the movable suspension rod 3-2 is welded and fixed to the slider 7. The No. 1 electric telescopic rod 14 is electrically connected to the battery 20. The shell of the battery 20 is fixed to the bottom plate 9 by screw connection. The slider 7 is slidably arranged on the guide rail 11. The two ends of the guide rail 11 are fixed to the bottom plate 9 by screw riveting. The lower surfaces of the two ends of the bottom plate 9 are glued and fixed with No. 1 magnetic beads 15. The No. 1 magnetic beads 15 are movably clamped in the circular groove 6-1 opened on the upper surface of the mounting ring 6. A sealing strip 22 (sealing adhesive) is movably embedded in the circular groove 6-1. The setting of the strip 22 avoids the accumulation of dust in the circular groove 6-1 during long-term use). The two ends of the guide rail 11 are welded and fixed with a screw seat 10. The two ends of the screw rod 12 are screwed into the screw seat 10 by bearings, and one end of the screw rod 12 passes through the lower end of the suspension rod 3 and the screw seat 10 on one side in turn, and is connected to the output shaft of the motor 4. The screw rod 12 is screwed into the lower end of the suspension rod 3. The motor 4 is fixed to the base plate 9 by the motor bracket 5, and the motor 4 is electrically connected to the battery 20; an annular groove 6-2 is opened on the inner ring wall of the mounting ring 6, and No. 2 magnet beads 16 are glued and fixed at both ends of the cross bar 13. The No. 2 magnet The bead 16 is slidably mounted in the annular groove 6-2, and the lower surface of the crossbar 13 is movably connected to the projector 19 by means of the projector mounting frame 8; a controller 21 with a wireless transceiver is fixed on the outer wall of the mounting ring 6, and the controller 21 is electrically connected to the motor 4 and the No. 1 electric telescopic rod 14 respectively, and the controller 21 is remotely controlled by an external remote controller by means of the wireless transceiver therein; a pull rod 23 is provided on the bottom surface of the bottom plate 9 and the bottom surface of the crossbar 13, and the pull rod 23 is composed of the No. 2 electric telescopic rod 23-1, the outer rod 23-2, the inner rod 23-3, the torsion spring 23-4 and the magnet block 23-5;The top wall of the second electric telescopic rod 23-1 is fixed with a magnet block 23-5 by screw connection. The second electric telescopic rod 23-1 is detachably connected to the bottom surface of the cross bar 13 and the bottom plate 9 by the magnet block 23-5. The output end of the second electric telescopic rod 23-1 is connected with an outer rod 23-2 by screws. The shaft hole at the lower end of the outer rod 23-2 is inserted and rotated with the rotating shaft at the end of the inner rod 23-3, and a torsion spring 23-4 is sleeved on one of the rotating shafts of the inner rod 23-3. One end foot of the torsion spring 23-4 is fixed to the shaft, and the other end angle of the torsion spring 23-4 is fixed to the inner wall of the shaft hole. The second electric telescopic rod 23-1 is electrically connected to the battery 20, and the second electric telescopic rod 23-1 is electrically connected to the controller 21. ;

[0024] The working principle of this specific embodiment is as follows: the chassis 2 is installed on the indoor ceiling by means of the installation screws 1. The operator stands on the ground and uses the remote control to start the motor 4 to drive the screw rod 12 to rotate, thereby driving the slider 7 to slide relative to the guide rail 11, so as to adjust the distance between the installation ring 6 and the projection screen; the installation ring 6 is rotated, and the bottom plate 9 is rotated to a suitable angle on the installation ring 6 by means of the No. 1 magnetic bead 15 at the bottom, and is positioned by magnetic adsorption; the cross bar 13 is then rotated, and the No. 2 magnetic beads 16 at both ends of the cross bar 13 are located in the installation ring 6 and rotated to a suitable angle, and are positioned by magnetic adsorption; the installation ring 6 and the cross bar 13 are rotated in combination with each other to adjust the different projection angles of the projector 19 on the horizontal plane; using The No. 1 electric telescopic rod 14 controls the adjustment of the installation height of the mounting ring 6 and all the components thereon; when the mounting ring 6 or the cross bar 13 needs to be rotated and adjusted, the No. 2 electric telescopic rod 23-1 is extended by the remote control, so that the operator can touch the outer rod 23-2 after stepping on it, and then straighten the inner rod 23-2, so as to use the pull rod 23 to drive the rotation of the mounting ring 6 or the cross bar 13 (the magnetic adsorption force of the magnet block 23-5 is greater than the torque force of the torsion spring 23-5). When the adjustment is completed, the inner rod 23-3 is released, and the inner rod 23-3 is retracted and fits with the outer rod 23-2 under the action of the torsion spring 23-4, and then the No. 2 electric telescopic rod 23-1 is retracted to retract the outer rod 23-2 and the inner rod 23-3 together.

[0025] After adopting the above structure, the beneficial effects of this specific implementation are as follows:

[0026] 1. The mounting ring and the crossbar rotate in combination with each other to achieve mobile projection of the projector in different directions;

[0027] 2. The bottom plate is movably connected to the guide rail to adjust the position of the projection screen at different distances to meet the projection of the screen at different distances;

[0028] 3. Use the No. 1 electric telescopic rod to control the rise and fall of the mounting ring, thereby controlling the height adjustment of the projector projection;

[0029] 4. Use the remote control to achieve wireless control, avoiding the need for workers to operate at heights, which is safer.

[0030] Example:

[0031] See also Figure 8 In this embodiment, a universal wheel 18 is detachably connected to the mounting screw 1, and an internal threaded sleeve rod 17 is fixed to the mounting seat of the universal wheel 18. The internal threaded sleeve rod 17 is threadedly connected to the mounting screw 1. When in use, the whole is rotated 180° and stood on the inside. The motor 4 drives the suspension rod 3 to move to the middle of the base plate 9 to ensure the overall balance.

[0032] In this embodiment, the whole body is placed on the ground by using universal wheels 18, which expands the application range of the projector and facilitates the movement and transportation of the whole body.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. 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 multi-directional mobile device for projection display device, characterized in that: It comprises mounting screws (1), a chassis (2), a suspension rod (3), a motor (4), a motor bracket (5), a mounting ring (6), a slider (7), a projector mounting frame (8), a base plate (9), a screw seat (10), a guide rail (11), a screw rod (12), a cross bar (13), a No. 1 magnet bead (15), a No. 2 magnet bead (16) and a battery (20); a plurality of mounting screws (1) are screwed on the base plate (2), a suspension rod (3) is fixed on the lower surface of the base plate (2), the lower end of the suspension rod (3) is fixed on the slider (7), the slider (7) is slidably arranged on the guide rail (11), the guide rail (11) is fixed on the base plate (9), and a plurality of lower surfaces of both ends of the base plate (9) are fixed. A magnet bead (15) is provided, wherein the magnet bead (15) is movably mounted in a circular groove (6-1) formed on the upper surface of the mounting ring (6). A screw seat (10) is fixed at both ends of the guide rail (11). Both ends of the screw rod (12) are screwed into the screw seat (10) by means of bearings. One end of the screw rod (12) passes through the lower end of the suspension rod (3) and the screw seat (10) on one side in sequence, and is connected to the output shaft of the motor (4). The screw rod (12) is screwed into the lower end of the suspension rod (3). The motor (4) is fixed to the bottom plate (9) by means of a motor bracket (5). The motor (4) is electrically connected to a battery (20), and the battery (20) is fixed to the bottom plate (9). The annular wall is provided with an annular groove (6-2), two ends of the cross bar (13) are fixed with a second magnetic bead (16), the second magnetic bead (16) is slidably clamped in the annular groove (6-2), and the lower surface of the cross bar (13) is movably connected with a projector (19) by means of a projector mounting frame (8); the suspension rod (3) is composed of a fixed suspension rod (3-1), a movable suspension rod (3-2) and a first electric telescopic rod (14); the upper end of the fixed suspension rod (3-1) is fixed to the bottom wall of the chassis (2), the lower end of the fixed suspension rod (3-1) is embedded with a first electric telescopic rod (14), the output end of the first electric telescopic rod (14) is connected to the upper end of the movable suspension rod (3-2), and the lower end of the movable suspension rod (3-2) is fixed On the slider (7), the No. 1 electric telescopic rod (14) is electrically connected to the battery (20); the mounting screw (1) is detachably connected to a universal wheel (18), an internal threaded sleeve rod (17) is fixed to the mounting seat of the universal wheel (18), and the internal threaded sleeve rod (17) is threadedly connected to the mounting screw (1); a sealing strip (22) is movably embedded in the circular groove (6-1); a controller (21) with a wireless transceiver is fixed on the outer wall of the mounting ring (6), the controller (21) is electrically connected to the motor (4) and the No. 1 electric telescopic rod (14), and the controller (21) is remotely connected to an external remote controller using the wireless transceiver therein;The bottom surface of the bottom plate (9) and the bottom surface of the cross bar (13) are both provided with a pull rod (23), and the pull rod (23) is composed of a No. 2 electric telescopic rod (23-1), an outer rod (23-2), an inner rod (23-3), a torsion spring (23-4) and a magnet block (23-5); the top wall of the No. 2 electric telescopic rod (23-1) is fixed with a magnet block (23-5), and the No. 2 electric telescopic rod (23-1) is detachably connected to the cross bar (13) and the bottom surface of the bottom plate (9) by means of the magnet block (23-5). The output end of the second electric telescopic rod (23-1) is connected to the outer rod (23-2), the shaft hole at the lower end of the outer rod (23-2) is inserted and rotated with the rotating shaft at the end of the inner rod (23-3), and a torsion spring (23-4) is sleeved on one of the rotating shafts of the inner rod (23-3), one end foot of the torsion spring (23-4) is fixed to the shaft, and the other end angle of the torsion spring (23-4) is fixed to the inner wall of the shaft hole. The second electric telescopic rod (23-1) is electrically connected to the battery (20), and the second electric telescopic rod (23-1) is electrically connected to the controller (21); the chassis (2) is installed on the indoor ceiling using the installation screws (1), and the motor (4) is started. The screw rod (12) is driven to rotate, thereby driving the slider (7) to slide relative to the guide rail (11), thereby adjusting the distance between the mounting ring (6) and the projection screen; the mounting ring (6) is rotated, and the bottom plate (9) is located on the mounting ring (6) using the No. 1 magnetic bead (15) at the bottom and rotated to a suitable angle, and is positioned by magnetic adsorption; the cross bar (13) is then rotated, and the No. 2 magnetic beads (16) at both ends of the cross bar (13) are located in the mounting ring (6) and rotated to a suitable angle, and are positioned by magnetic adsorption; the mounting ring (6) and the cross bar (13) are combined and rotated with each other to achieve the adjustment of different projection angles of the projector (19) on the horizontal plane. ;

Images