A network information display device capable of being adjusted in multiple directions

Abstract

The utility model discloses a kind of network information display equipment that can be conveniently adjusted in many ways, it is related to display equipment technical field, including display main body and mechanical arm. The joint of the mechanical arm is equipped with controllable damping mechanism, and capacitive touch sensor is equipped on the display main body. The utility model passes through the double-hand contact signal of capacitive touch sensor induction user, and damping force or brake force of controllable damping mechanism is controlled accordingly: when user double-hand contact, damping force reduces, and it is convenient to flexibly adjust display pose;When user releases double hand, damping force instantaneously increases, and display is firmly locked. The equipment effectively solves the contradiction that traditional display equipment adjustment operation is complicated and locking stability is insufficient, realizes the convenient and stable multidirectional adjustment function that hand touch is loose, hand is locked.

Description

Technical Field

[0001] This utility model relates to the field of display device technology, specifically to a network information display device that can be easily adjusted in multiple directions. Background Technology

[0002] With the rapid development of information technology, network information display devices (such as advertising machines, query machines, and conference tablets) have been widely used in offices, businesses, and public places. In order to adapt to different users' heights, viewing habits, and diverse installation environments, these display devices usually need to have the function of multi-directional angle adjustment.

[0003] Currently, most adjustable display devices on the market use robotic arm structures. Their joints typically achieve positioning and fixation through mechanical methods such as tightening friction plates, spring preload, or gear locking. Alternatively, some devices use fixed dampers (such as friction dampers or hydraulic dampers) at the joints to provide resistance, attempting to offer tactile feedback during adjustment and maintain position after release. However, these existing solutions have significant shortcomings: for joints with fixed damping, the damping coefficient cannot be changed once set, leading to difficult and inconvenient angle adjustment when the damping is too high; conversely, insufficient damping results in insufficient locking force, causing the display to sag or wobble after positioning, compromising stability. Traditional mechanical locking structures often require users to manually loosen the locking knob or wrench on the joint before adjusting and then retightening, a cumbersome process that is prone to wear and tear over time, exacerbating the decrease in locking force. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a network information display device that can be easily adjusted in multiple directions, thus solving the problems mentioned above.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a network information display device that can be easily adjusted in multiple directions, including a display body and a mechanical arm for supporting the display body, wherein the mechanical arm includes at least one joint composed of a rotating shaft;

[0008] The main body of the display is provided with a sensing module for sensing the contact of the user's hands, and the joint is provided with a controllable damping mechanism.

[0009] The controllable damping mechanism is configured to: reduce the damping force or braking force of the controllable damping mechanism when the sensing module detects contact with the user's hands; and increase the damping force or braking force of the controllable damping mechanism when the sensing module does not detect contact with the user's hands; this control method is automatically controlled by the control unit.

[0010] Preferably, the sensing module is a capacitive touch sensor disposed on the side bezels of the display body.

[0011] Preferably, the controllable damping mechanism is a current-controlled electromagnetic brake or a rotary magnetorheological damper.

[0012] Preferably, the controllable damping mechanism is an electromagnetic brake; the electromagnetic brake includes a fixed shell fixed to the joint housing, and a connecting sleeve, a brake plate, a spring, and an electromagnetic coil housed inside the fixed shell; the connecting sleeve is rotatably disposed within the fixed shell and rotates synchronously with the joint's shaft via a key connection; the brake plate is keyed to the connecting sleeve and can move axially; the spring applies pressure to the brake plate, causing it to press against the connecting sleeve under normal conditions to generate braking force; the electromagnetic coil is disposed within the fixed shell; when the electromagnetic coil is energized, the magnetic force it generates overcomes the pressure of the spring, driving the brake plate to separate from the connecting sleeve, thereby releasing the brake.

[0013] Preferably, there are two brake plates, which are symmetrically arranged on the outer wall of the connecting sleeve. The pressure generated by the spring drives the brake plates to press the connecting sleeve, thereby braking the connecting sleeve, that is, braking the rotating shaft on the robotic arm.

[0014] Preferably, the fixed housing is provided with a limiting rod to restrict the circumferential rotation of the brake plate. One end of the limiting rod is fixed to the brake plate, and the other end is slidably connected to the fixed housing. The movement trajectory of the brake plate is restricted by the limiting rod.

[0015] Preferably, the robotic arm has a multi-segment structure, which includes at least two joints, and each joint is provided with a controllable damping mechanism. The rotation axes of each joint are arranged in an interlaced manner to form a multi-degree-of-freedom kinematic chain. By adjusting the rotation angle of each joint, the display body can be adjusted in multiple directions and angles in space, including lifting, tilting, and horizontal rotation.

[0016] Regarding the specific implementation of the controllable damping mechanism: when an electromagnetic brake is used, the electromagnetic brake is fixed on the first connecting arm of the robotic arm joint, and the connecting sleeve of the electromagnetic brake is synchronously connected to the rotating shaft through a keyway structure, while the rotating shaft is fixedly connected to the second connecting arm of the joint.

[0017] When the controllable damping mechanism adopts a rotary magnetorheological damper, the stator of the rotary magnetorheological damper is fixed to the first connecting arm of the robotic arm joint by a mounting bracket, and its rotor is synchronously connected to the rotating shaft by a coupling or keyway structure. The rotating shaft is then fixedly connected to the second connecting arm of the joint.

[0018] (III) Beneficial Effects

[0019] This utility model provides a network information display device that can be easily adjusted from multiple angles. It has the following beneficial effects:

[0020] By using sensor modules on both sides of the monitor to detect the user's operating intentions, an intelligent control logic is achieved that releases when the hand is touched and locks when the hand is released. Users no longer need to find and operate separate locking components; they can make all-round adjustments by naturally holding both sides of the monitor with both hands, and the monitor will automatically stabilize after being released, greatly improving the intuitiveness and convenience of operation.

[0021] By integrating a controllable damping mechanism into the joints of the robotic arm, the contradiction between flexibility and stability is fundamentally resolved. During adjustment, the damping force or braking force is actively reduced, making the adjustment process light and smooth. After the adjustment is completed, the damping force or braking force is instantly restored, firmly locking the display in the target position and effectively eliminating shaking and sagging during use.

[0022] Two core controllable damping mechanism implementation schemes are proposed: the scheme using an electromagnetic brake has the advantages of compact structure, large braking force, self-locking upon power failure, and relatively low cost; while the scheme using a rotary magnetorheological damper can achieve stepless and precise control of damping force, not only possessing basic locking function, but also providing users with a smooth and controlled feel during the adjustment process, achieving high-quality slow fine-tuning, and meeting the needs of high-end application scenarios. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the installation state of the electromagnetic brake in this utility model;

[0025] Figure 3 This is a schematic diagram of the internal structure of the electromagnetic brake in this utility model;

[0026] Figure 4 for Figure 3 Enlarged view of part A;

[0027] Figure 5 This is a schematic diagram of the installation state of the rotary magnetorheological damper in this utility model.

[0028] In the diagram: 1. Display body; 2. Capacitive touch sensor; 3. Robotic arm; 31. Rotary shaft; 4. Controllable damping mechanism; 5. Electromagnetic brake; 6. Rotary magnetorheological damper; 51. Fixed shell; 52. Bearing; 53. Connecting sleeve; 54. Brake plate; 55. Limiting rod; 56. Spring; 57. Electromagnetic coil. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0030] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] Example 1: Implementation based on electromagnetic brake

[0032] Reference Figures 1 to 4 This utility model provides a network information display device that can be easily adjusted in multiple directions, including a display body 1, a robotic arm 3, and capacitive touch sensors 2 disposed on the side bezels of the display body 1; the robotic arm 3 has a multi-segment structure, shown in this embodiment as having two joints, each joint consisting of a pivot 31. The base of the robotic arm 3 is used to fix it to a desktop or wall;

[0033] In this embodiment, the capacitive touch sensor 2 is implemented using surface capacitive sensing technology known in the art. It includes a sensing electrode covered under the display bezel and a capacitive sensing integrated circuit (IC) connected thereto. The integrated circuit is responsible for detecting minute changes in capacitance caused by human contact and outputting corresponding switching signals to the control unit. Its specific circuit structure, layout method and signal processing flow are mature existing technologies in the art and will not be described in detail here.

[0034] The core improvement is that a controllable damping mechanism 4 is provided at each joint. In this embodiment, the controllable damping mechanism 4 is an electromagnetic brake 5.

[0035] The specific structure of the electromagnetic brake 5 is as follows:

[0036] The device includes a fixed shell 51 fixed to the outer shell of the joint; a connecting sleeve 53 is rotatably disposed inside the fixed shell 51 via a bearing 52, and the connecting sleeve 53 is connected to the rotating shaft 31 of the joint via a key to achieve synchronous rotation; two brake plates 54 that can move axially are sleeved on the outside of the connecting sleeve 53; a limit rod 55 is also slidably disposed inside the fixed shell 51, and the limit rod 55 is fixed to the outer end of the brake plate 54, thereby restricting the brake plate 54 to move only axially and not rotate circumferentially; a spring 56 is disposed between the two sets of brake plates 54 and between the brake plate 54 and the inner wall of the fixed shell 51, and the spring 56 is used to apply pressure to the brake plate 54 so that it presses against the outer surface of the connecting sleeve 53 under normal conditions (i.e., when the electromagnetic coil 57 is not energized), thereby generating braking force through friction and locking the rotating shaft 31; the electromagnetic coil 57 is disposed in the inner wall of the fixed shell 51.

[0037] The working process and principle of this utility model are as follows:

[0038] When a user needs to adjust the position and angle of the monitor, they can hold both sides of the monitor body 1 with both hands at the same time, with their fingers naturally covering the capacitive touch sensors 2 on both sides.

[0039] Two capacitive touch sensors 2 simultaneously detect the capacitive signal of the human body and send the signal to the control unit of the device; the control unit is implemented using a conventional microcontroller (MCU), which provides electrical connection and signal processing between the controllable damping mechanism 4 and the sensing module 2, which is a well-known technology in the field;

[0040] Upon receiving the signal, the control unit immediately supplies power to the electromagnetic coil 57 of the electromagnetic brake 5. The energized electromagnetic coil 57 generates a strong magnetic field, and the electromagnetic force generated by this field overcomes the pressure of the spring 56, attracting the brake plate 54 and causing it to separate from the connecting sleeve 53. At this point, the connecting sleeve 53 and the rotating shaft 31 can rotate freely, and the joint is in the unlocked state.

[0041] The user can easily push or pull the main body of the display 1, and the joints of the robotic arm 3 will rotate flexibly, so as to smoothly adjust the display to any desired position and angle.

[0042] Once the adjustment is complete and the user releases their hands, the capacitive touch sensor 2 detects no signal, and the control unit immediately cuts off the power supply to the electromagnetic coil 57. With the electromagnetic force gone, the pressure of the spring 56 immediately presses the brake plate 54 back onto the connecting sleeve 53, generating a huge frictional torque that instantly brakes the rotating shaft 31, stabilizing the entire robotic arm 3 and the display in the adjusted position.

[0043] Example 2: Implementation based on a rotating magnetorheological damper

[0044] Reference Figure 1and Figure 5 The main difference between this embodiment and embodiment 1 lies in the specific form of the controllable damping mechanism 4; in this embodiment, the controllable damping mechanism 4 adopts a rotary magnetorheological damper 6.

[0045] The stator of the rotary magnetorheological damper 6 is fixed to the first connecting arm of the joint of the robotic arm 3; its rotor is synchronously connected to the rotating shaft 31 of the joint; the rotating shaft 31 is supported by bearings and fixed to the second connecting arm of the joint.

[0046] The working process and principle of this embodiment are as follows:

[0047] Its sensing and control logic is similar to that of Embodiment 1, but it implements more advanced functions;

[0048] Fully unlocked state (low damping): When the user touches the capacitive touch sensor 2 with both hands, the control unit can cut off the current flowing to the coil of the rotary magnetorheological damper 6; at this time, its internal magnetic field disappears, the magnetorheological fluid returns to a liquid state, the damping force is reduced to the minimum, and the joint is in a state of almost "resistance-free" free rotation, which is convenient for quick and wide-range adjustment of the display position.

[0049] Adjustable resistance state: As a preferred embodiment, the control unit can be configured such that when the user touches the sensor with both hands, the current is not completely cut off, but a low preset current is output to the rotary magnetorheological damper 6; this current generates a moderate magnetic field, so that the magnetorheological fluid is in a semi-fluid state, thereby providing a smooth and perceptible damping force for joint rotation.

[0050] This adjustable damping force provides users with excellent feel and control when adjusting the monitor; it effectively prevents the monitor from falling too quickly due to its own weight or moving too fast in the horizontal direction, achieving smooth, controlled, and precise slow fine-tuning, enhancing the high-end feel of the device and the user experience.

[0051] Full Lock-in State (High Damping): When the user releases both hands, the signal from the capacitive touch sensor 2 disappears, and the control unit immediately outputs the maximum rated operating current to the rotary magnetorheological damper 6; the coil generates a strong magnetic field, causing the magnetorheological fluid to instantly become a near-solid state, generating extremely high damping force, which firmly locks the joint at the current angle, ensuring the absolute stability of the display.

[0052] In summary, this embodiment utilizes the characteristic that the damping force of the rotary magnetorheological damper 6 is proportional to the magnitude of the input current to achieve stepless and programmable control of the motion resistance of the robotic arm 3. This enables the present invention not only to achieve locking upon release, but also to provide multiple working modes from free adjustment to slow fine-tuning, adapting to the preferences and fine adjustment needs of different users, demonstrating higher technical flexibility and advancement than Embodiment 1.

Claims

1. A network information display device that can be easily adjusted in multiple directions, comprising a display body (1) and a robotic arm (3) for supporting the display body (1), the robotic arm (3) including at least one joint formed by a pivot (31), characterized in that: The display body (1) is provided with a sensing module for sensing the user's hands in contact, and the joint is provided with a controllable damping mechanism (4); The controllable damping mechanism (4) is configured to: reduce the damping force or braking force of the controllable damping mechanism (4) when the sensing module detects that the user's hands are in contact; and increase the damping force or braking force of the controllable damping mechanism (4) when the sensing module does not detect that the user's hands are in contact.

2. The network information display device that can be easily adjusted in multiple directions according to claim 1, characterized in that: The sensing module is a capacitive touch sensor (2) disposed on both sides of the display body (1).

3. The network information display device that can be easily adjusted in multiple directions according to claim 1, characterized in that: The controllable damping mechanism (4) is a current-controlled electromagnetic brake (5) or a rotary magnetorheological damper (6).

4. A network information display device that can be easily adjusted in multiple directions according to claim 3, characterized in that: include: A fixing shell (51) is fixed to the joint shell; A connecting sleeve (53) is rotatably disposed inside the fixed housing (51) and keyed to the rotating shaft (31); Brake plate (54) for braking the rotation of the connecting sleeve (53); A spring (56) for applying pressure to the brake plate (54); And an electromagnetic coil (57) disposed within the fixed housing (51); When the electromagnetic coil (57) is energized, the magnetic force it generates overcomes the pressure of the spring (56) and drives the brake plate (54) to separate from the connecting sleeve (53).

5. A network information display device that can be easily adjusted in multiple directions according to claim 4, characterized in that: Two brake plates (54) are provided and are symmetrically arranged on the outer wall of the connecting sleeve (53).

6. A network information display device that can be easily adjusted in multiple directions according to claim 4, characterized in that: The fixed housing (51) is provided with a limiting rod (55) to restrict the circumferential rotation of the brake plate (54).

7. A network information display device that can be easily adjusted in multiple directions according to claim 1, characterized in that: The robotic arm (3) has a multi-segment structure, which includes at least two joints, and each joint is provided with the controllable damping mechanism (4).

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