Turnover display screen device driven by double motors

Abstract

The utility model discloses a double-motor-driven turnover display screen device which comprises a top plate, a display screen hovering mechanism and a display screen locking mechanism, the display screen hovering mechanism is installed on the lower side of the end face of the top plate, and the display screen hovering mechanism is provided with a display screen panel, an installation back plate and a worm and gear encoder motor. Wherein the worm and gear encoder motors are distributed on the two sides of the mounting back plate, the two worm and gear encoder motors are connected with the synchronizing shaft through the couplings, the bearing seats are arranged at the two ends of the synchronizing shaft, the mounting back plate is fixedly arranged on the synchronizing shaft, and the display screen panel is arranged on the mounting back plate; lock tongue hasps are mounted on two sides of the front end of the mounting back plate and can be matched with the display screen locking mechanism when the display screen panel rotates backwards along with the worm and gear encoder motor, so that the display screen panel is locked to be in a horizontal state. According to the utility model, the display screen can be suspended at any angle and position, and the display screen can be firmly and reliably locked without shaking gaps.

Description

Technical Field

[0001] The utility model relates to the field of display screen hovering and flipping, in particular to a double-motor-driven flipping display screen device. Background Art

[0002] With the development of electronic information technology, display screens are more and more widely used on various machines. In many cases, the display screen not only serves as a window for information display, but also plays a role in interactive feedback.

[0003] In the prior art, display screens are all installed horizontally or vertically, and must be observed and operated at a specific angle or height, which causes great inconvenience to users during use. To achieve multi-angle display of the display screen, some manufacturers use a single motor drive or gear structure to achieve angle adjustment. However, this structural design causes shaking after stopping at a certain angle (not completely locked due to the inability to eliminate the mechanism clearance), and the shaking of the display screen when viewed by users will cause discomfort, especially in a bumpy environment such as a running vehicle.

[0004] Based on this background, the utility model uses two worm and worm gear encoder motors to drive the display screen. After the two motors drive the display screen to rotate to a certain target angle, one motor rotates the display screen in a different direction from the other motor, or one motor stops and the other motor reverses to drive the display screen to rotate in the opposite direction, so as to offset the backlash between the worm and the worm gear inside the worm and worm gear encoder motor. And when the motor current exceeds the threshold value, the motor is stopped to rotate, so that the two worm and worm gear encoder motors hold the display screen tightly, so that the display screen hovers firmly without shaking. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a double-motor-driven flipping display screen device to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A double-motor-driven flipping display screen device, including a top plate, a display screen hovering mechanism and a display screen locking mechanism. The display screen hovering mechanism is installed on the lower side of the end face of the top plate. The display screen hovering mechanism has a display screen panel, a mounting back plate and worm and worm gear encoder motors. The worm and worm gear encoder motors are distributed on both sides of the mounting back plate. Both worm and worm gear encoder motors are connected to a synchronous shaft through couplings. Bearing seats are arranged at both ends of the synchronous shaft. The mounting back plate is fixedly installed on the synchronous shaft. A display screen panel is installed on the mounting back plate. Lock tongue buckles are installed on both sides of the front end of the mounting back plate. The lock tongue buckles can cooperate with the display screen locking mechanism to lock the display screen panel in the horizontal state when the two worm and worm gear encoder motors drive the display screen panel to rotate to the horizontal position (0 degrees).

[0007] Preferably, the display screen locking mechanism is installed on the upper side of the end face of the top plate. The display screen locking mechanism has a 0-degree limit switch, a silica gel pad, and a lock tongue assembly. The lock tongue assembly is used to lock the display screen panel after the display screen panel is closed.

[0008] Preferably, the 0-degree limit switch is installed in the middle of the top side of the top plate. Silica gel pads are provided on both sides of the 0-degree limit switch to play a buffering role when the lock tongue assembly locks the display screen panel.

[0009] Preferably, the lock tongue assembly has a lock tongue driving motor, a cam, a hexagonal steel, and a mechanical lock. The lock tongue driving motor is connected to the hexagonal steel through a coupling. A cam and a lock tongue forward and backward limit switch are arranged on the hexagonal steel. The cam can rotate with the hexagonal steel and toggle the lock tongue forward and backward limit switch.

[0010] Preferably, a lock tongue is provided on the mechanical lock. The hexagonal steel passes through the hexagonal hole structure of the mechanical lock and rotates to pull the lock tongue forward and backward.

[0011] Preferably, the lock tongue can extend into the lock tongue buckle when the display screen panel is in a 0-degree horizontal state, and the lock tongue can be used as a support to lock the display screen panel.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] The present utility model can realize hovering the display screen at any angular position, and can firmly and reliably lock the display screen without shaking clearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic three-dimensional structure diagram when the display screen of the present utility model hovers;

[0015] Figure 2 is a schematic plan structure diagram when the display screen of the present utility model is locked.

[0016] In the figure: 1. Top plate; 2. Display screen panel; 3. Installation back plate; 4. Worm and worm gear encoder motor; 5. Lock tongue buckle; 6. 0-degree limit switch; 7. Silica gel pad; 8. Lock tongue driving motor; 9. Cam; 10. Lock tongue forward and backward limit switch; 11. Hexagonal steel; 12. Mechanical lock; 13. Lock tongue. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0018] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "vertical", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0019] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "coupled" should be understood in a broad sense. For example, it 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0020] Please refer to Figure 1-2 , the present utility model provides a technical solution: a double-motor-driven flip display device, including a top plate 1, a display hovering mechanism and a display locking mechanism. The display hovering mechanism is installed on the lower side of the end face of the top plate 1. The display hovering mechanism has a display panel 2, a mounting back plate 3 and a worm and worm gear encoder motor 4. The worm and worm gear encoder motors 4 are distributed on both sides of the mounting back plate 3. Both worm and worm gear encoder motors 4 are connected to a synchronous shaft through couplings. Bearing seats are arranged at both ends of the synchronous shaft. The mounting back plate 3 is fixedly installed on the synchronous shaft. A display panel 2 is installed on the mounting back plate 3; locking tongue buckles 5 are installed on both sides of the front end of the mounting back plate 3. The locking tongue buckles 5 can cooperate with the display locking mechanism when the display panel 2 rotates backward with the worm and worm gear encoder motor 4.

[0021] In this embodiment, the display locking mechanism is installed on the upper side of the end face of the top plate 1. The display locking mechanism has a 0-degree limit switch 6, a silica gel pad 7, and a locking tongue assembly. The locking tongue assembly is used to lock the display panel 2 after the display panel 2 is closed.

[0022] In this embodiment, the 0-degree limit switch 6 is installed in the middle of the top side of the top plate 1. Silica gel pads 7 for buffering are arranged on both sides of the 0-degree limit switch 6 when the locking tongue assembly locks the display panel 2.

[0023] In this embodiment, the locking tongue assembly has a locking tongue driving motor 8, a cam 9, a hexagonal steel 11 and a mechanical lock 12. The locking tongue driving motor 8 is connected to the hexagonal steel 11 through a coupling. A cam 9 and a locking tongue forward and backward limit switch 10 are arranged on the hexagonal steel 11. The cam 9 can rotate with the hexagonal steel 11 and toggle the locking tongue forward and backward limit switch 10.

[0024] In this embodiment, a locking tongue 13 is provided on the mechanical lock 12. The hexagonal steel 11 passes through the hexagonal hole structure of the mechanical lock 12 and rotates to pull the locking tongue 13 forward and backward.

[0025] In this embodiment, it is common knowledge technology for the mechanical lock to realize the rotation motion to linear motion by itself. The structure and principle thereof will not be elaborated herein. The rotation of the motor can drive the locking tongue 13 to move forward and backward, and the forward and backward limit switch 10 installed beside is used to ensure that the locking tongue 13 moves forward and backward in place.

[0026] In this embodiment, when the display screen panel 2 is in the 0-degree horizontal state, the locking tongue 13 can extend into the locking tongue buckle 5, and the locking tongue 13 can be used as a support to lock the display screen panel 2.

[0027] In this embodiment, the core principle of the device for hovering and holding the display screen at any opening angle: The worm and worm gear belong to a self-locking device. After receiving the hovering instruction, two worm and worm gear encoder motors drive the display screen to rotate in different directions, or one motor stops and the other motor rotates in reverse to drive the display screen to rotate in the opposite direction to offset the backlash of the worm and worm gear. And when the motor current is detected to exceed the threshold, the motor stops rotating, so that the two worm and worm gear encoder motors hold the synchronous shaft tightly, so that the display screen hovers firmly without shaking clearance.

[0028] In the embodiment, the reason for using a single synchronous shaft to connect the display screen is that the machining accuracy, concentricity at both ends and stiffness of a single synchronous shaft are relatively high, which can effectively reduce the mechanical movement friction noise caused by directly installing the display screen (such as non-concentricity at both ends or structural deformation, etc.).

[0029] Working principle:

[0030] When the user presses the opening switch, the locking tongue driving motor 8 rotates to make the locking tongue 13 retract, disengaging from the locking tongue buckle 5. The two worm and worm gear encoder motors 4 rotate to drive the display screen to open. At any allowable opening angle position, when the user presses the hovering switch, the worm and worm gear encoder motors 4 immediately perform the hovering and holding action to make the display screen hover without shaking clearance.

[0031] When the user presses the closing switch, the worm and worm gear encoder motors 4 rotate to drive the display screen to close. When the display screen reaches the proximity switch position, the locking tongue driving motor 8 rotates to make the locking tongue 13 retract, disengaging from the buckle to ensure that the display screen does not collide with the locking tongue 13. Correspondingly, the rotation of the worm and worm gear encoder motors 4 is decelerated to make the display screen smoothly return to the 0-degree horizontal position. After the 0-degree limit switch 6 receives the signal, the locking tongue driving motor 8 rotates to make the locking tongue 13 advance into the buckle to lock the display screen.

[0032] It should be noted that the entire device is controlled through the total control button. Since the devices matched with the control button are common devices and belong to the existing mature technologies, the electrical connection relationships and specific circuit structures thereof will not be elaborated herein.

[0033] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-motor-driven flip display device, characterized in that, It includes a top plate (1), a display hovering mechanism and a display locking mechanism. The display hovering mechanism is installed on the lower side of the end face of the top plate (1). The display hovering mechanism has a display panel (2), a mounting back plate (3) and a worm and worm gear encoder motor (4). The worm and worm gear encoder motors (4) are distributed on both sides of the mounting back plate (3). Both worm and worm gear encoder motors (4) are connected to a synchronous shaft through couplings. Bearing seats are arranged at both ends of the synchronous shaft. The mounting back plate (3) is fixedly installed on the synchronous shaft. A display panel (2) is installed on the mounting back plate (3); on both sides of the front end of the mounting back plate (3), there are installed lock tongue latches (5). The lock tongue latches (5) can cooperate with the display locking mechanism when the display panel (2) rotates backward with the worm and worm gear encoder motor (4) to lock the display panel (2) in a horizontal state.

2. The dual-motor-driven flip display device according to claim 1, characterized in that: The display locking mechanism is installed on the upper side of the end face of the top plate (1). The display locking mechanism has a 0-degree limit switch (6), a silica gel pad (7), and a lock tongue assembly. The lock tongue assembly is used to lock the display panel (2) after the display panel (2) is closed.

3. The dual-motor-driven flip display device according to claim 2, wherein: The 0-degree limit switch (6) is installed in the middle of the top side of the top plate (1). Silica gel pads (7) for buffering are arranged on both sides of the 0-degree limit switch (6) when the lock tongue assembly locks the display panel (2).

4. A dual-motor-driven flip display device according to claim 2, characterized in that: The lock tongue assembly has a lock tongue drive motor (8), a cam (9), a hexagonal steel (11) and a mechanical lock (12). The lock tongue drive motor (8) is connected to the hexagonal steel (11) through a coupling. A cam (9) and a lock tongue forward and backward limit switch (10) are arranged on the hexagonal steel (11). The cam (9) can rotate with the hexagonal steel (11) and toggle the lock tongue forward and backward limit switch (10).

5. A dual-motor-driven flip display device according to claim 4, characterized in that: The mechanical lock (12) is provided with a lock tongue (13). The hexagonal steel (11) passes through the hexagonal hole structure of the mechanical lock (12) and rotates to pull the lock tongue (13) forward and backward.

6. The dual-motor-driven flip display device according to claim 5, characterized in that: The lock tongue (13) can extend into the lock tongue latch (5) when the display panel (2) is in a 0-degree horizontal state. The lock tongue (13) can be used as a support to lock the display panel (2).

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