Computer display screen angle adjustment mechanism

Abstract

The invention discloses an angle adjustment mechanism for a computer display screen, comprising a base, wherein mounting plates are symmetrically arranged on the upper end surface of the base, an inner support arm is rotatably installed between the mounting plates via a rotating shaft, an end of the inner support arm away from the base is rotatably connected to an outer support arm, an adjustment mechanism for adjusting the radial angle of the inner support arm is arranged on the upper end surface of the base, a sensing mechanism for driving the adjustment mechanism to operate is arranged on the lower side of the outer support arm, a positioning panel for installing a display is rotatably connected to the end of the outer support arm, and a controller is also arranged on the upper end surface of the base; the invention has a simple structure and a reasonable design, and realizes precise control of the torque of the support arm, and a user can independently and precisely adjust the specific height and radial angle of the display screen by using a relatively small thrust, and can also quickly match display screens of different weights and sizes by adjusting the current size of the electromagnet ring, and has stronger adaptability.

Description

Technical Field

[0001] The invention relates to the technical field of display bracket equipment, in particular to an angle adjustment mechanism for a computer display screen. Background Art

[0002] With the rapid development of information technology, computers have become an indispensable tool in modern life and work. As an important interface for human-computer interaction, the angle and height adjustment functions of computer display screens are crucial to the user's visual experience and health protection. In order to improve the user experience, a variety of computer display screen angle adjustment mechanisms have emerged on the market, aiming to provide users with a more flexible and convenient display screen adjustment method.

[0003] The traditional device has the following shortcomings:

[0004] Most of the computer display screen angle adjustment mechanisms in the prior art use a spring damping structure to support and adjust the display screen. Specifically, these mechanisms usually include a fixed base, one or more support arms, and a display screen installation panel connected to the end of the support arm. A spring damper is provided inside the support arm. In actual application, after the display screen is installed, the user needs to hold the display screen with one hand and use a screwdriver with the other hand to adjust the tension of the spring according to the weight of the display screen to ensure that the weight of the display screen and the tension of the spring are balanced so that it can be lifted up. Only then can the height of the display screen be rotated and adjusted. However, this structure has obvious defects. First of all, in this process, the adjustment operation of the spring tension is relatively complicated, and it is difficult for the user to accurately adjust the spring tension by hand perception. Repeated attempts and adjustments are required to achieve the ideal state. The whole process takes a long time, and it is also more laborious to adjust the height and angle of the display screen in the later stage. Secondly, since the tension of the spring is completely dependent on the deformation, a larger space is required to meet the adjustment requirements. In actual application, the spring is installed in the support arm, and it is difficult to provide enough space to meet the deformation requirements. As a result, the conventional adjustment mechanism can bear a limited range of weight. For larger or smaller display screens, it is difficult to match the weight if it exceeds the load-bearing range. Summary of the invention

[0005] The object of the present invention is to provide a computer display screen angle adjustment mechanism to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a computer display screen angle adjustment mechanism, comprising a base, the upper end surface of the base is symmetrically provided with mounting plates, an inner support arm is rotatably installed between the mounting plates via a rotating shaft, one end of the inner support arm away from the base is rotatably connected to an outer support arm, an adjustment mechanism for adjusting the radial angle of the inner support arm is arranged on the upper end surface of the base, a sensing mechanism for driving the adjustment mechanism to operate is arranged on the lower side of the outer support arm, a positioning panel for mounting a display is rotatably connected to the end of the outer support arm, and a controller is also arranged on the upper end surface of the base;

[0007] The regulating mechanism comprises:

[0008] A control groove, the control groove is opened at the rotating shaft of the end of the inner support arm, a hydraulic cylinder is arranged on the upper end surface of the base and located inside the control groove, the cylinder neck of the hydraulic cylinder is a tubular arc and the center of the circle is on the axis of the rotating shaft of the inner support arm, a control rod is slidably sealed in the cylinder neck of the hydraulic cylinder, and the control rod is used to push the end of the inner support arm to adjust the angle of the display;

[0009] A mounting ring, the mounting ring is arranged at the lower end of the hydraulic cylinder, an electromagnet ring is arranged in a slot on the mounting ring, an adjustment block is slidably and sealably connected above the electromagnet ring in the hydraulic cylinder, and a permanent magnet block matching the electromagnet ring is arranged in a slot at the lower end of the adjustment block;

[0010] Hydraulic oil, which is filled in a hydraulic cylinder and located between the adjustment block and the control rod to drive the control rod to move;

[0011] The locking assembly is arranged on the cylinder neck of the hydraulic cylinder and is used to locate the position of the control rod and the angle of the inner support arm.

[0012] Preferably, the sensing mechanism comprises:

[0013] A mounting column, wherein the mounting column is arranged on the lower end surface of the outer support arm, an extension rod is arranged at the lower end of the mounting column, and an induction sheet is arranged on the extension rod;

[0014] A sliding sleeve, wherein the sliding sleeve is slidably connected in a sliding groove on the outer wall of the mounting column, and an end of the sliding sleeve is slidably connected to the extension rod through a through hole, and positioning springs are arranged on both upper and lower sides of the sensing sheet in the sliding sleeve, and the positioning springs are sleeved on the extension rod;

[0015] A proximity sensor, which is arranged on the inner wall of the sliding sleeve and located on the upper and lower sides of the sensing sheet (the model of the proximity sensor is: NJK-8001A);

[0016] A slider is slidably connected in a slide groove on one side of the sliding sleeve, and a support rod group is movably arranged on one side of the slider.

[0017] Preferably, the locking assembly comprises:

[0018] An installation groove, the installation groove is provided at the end of the hydraulic cylinder neck, a positioning block is slidably connected in the installation groove, a return spring for lifting the positioning block is provided between the installation groove and the positioning block, and teeth matching each other are provided on the end surfaces of the positioning block and the control rod;

[0019] A check plate, wherein the check plate is slidably connected to the cylinder neck of the hydraulic cylinder and is located on one side of the mounting groove, and a slot matching the check plate is provided above the positioning block;

[0020] The permanent magnet blocks are respectively arranged in the cylinder wall of the hydraulic cylinder and at the end of the non-return plate. The permanent magnet blocks always exert a repulsive force on the non-return plate through the action of the magnetic field.

[0021] Preferably, the support rod group includes:

[0022] A first support rod, one end of which is rotatably connected to one side of the slider, and the other end of which is rotatably connected to a second support rod;

[0023] A folding groove is provided on the lower end surface of the outer support arm, and the second support rod is foldably installed in the folding groove.

[0024] Preferably, the ends of the slider and the second support rod are both provided with mounting shafts, the first support rod is sleeved on the mounting shaft by opening a through hole, the end of the mounting shaft is provided with a compression spring for clamping the first support rod, positioning holes are opened on the end side walls of the slider and the second support rod, and positioning pins matching the positioning holes are opened on the two end side walls of the first support rod.

[0025] Preferably, mutually matching magnet sheets are arranged on the rod wall and in the folding groove of the second support rod for folding and positioning the second support rod.

[0026] Preferably, the mounting ring is mounted in suspension at the lower end of the hydraulic cylinder, and a vent hole is provided at the lower end of the hydraulic cylinder.

[0027] Preferably, the controller is electrically connected to the electromagnet ring and the proximity sensor via a wire.

[0028] Preferably, a limiting groove matching the contour of the end of the inner support arm is provided on the upper end surface of the base.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] The present invention realizes precise control of the torsion of the support arm by providing an adjustment mechanism. Compared with the spring damping of the traditional display screen bracket, the operation process is simple and convenient, so that the display screen can be in a balanced suspended state with the outer support arm and the inner support arm after installation. At this time, the user can break the balance with a small thrust, and then independently and accurately adjust the specific height and radial angle of the display screen, thereby improving the comfort, accuracy and efficiency of adjustment. In addition, for display screens of different weights and sizes, the current size of the electromagnet ring can also be adjusted to quickly match, and the adaptability is stronger. Not only the upper and lower limit ranges of the load-bearing capacity are expanded, but also the adjustable angle range is expanded, which is more in line with the actual use needs of current users.

[0031] The present invention is provided with a sensing mechanism, which can quickly feed back the stress of the support rod group to the controller, actively adjust the current of the electromagnet ring, so that the display screen, the outer support arm and the inner support arm quickly reach a balanced state, and after the display screen is suspended in the air, the current of the electromagnet ring can be further actively adjusted by pushing and pulling the sliding sleeve up and down to adjust the radial angle of the display screen. The entire adjustment process is labor-saving and simple and quick to operate. For display screens of different specifications and weights, the adjustment method and adjustment force are also consistent, and the adjustment process is linearly controllable, which is more user-friendly for female users.

[0032] The present invention realizes effective locking of the control rod by providing a locking assembly, so that the display screen can maintain balance without relying on the electromagnet ring during the later use, which significantly improves the stability of the display screen. In addition, the hydraulic cylinder does not need to maintain a high pressure state during the later use of the display screen, and the overall service life of the equipment is also improved, and the use cost is reduced.

[0033] The present invention is provided with a support rod group, and the support rods can be folded and stored after the display screen, the outer arm and the inner arm are balanced, so that the user cannot contact the table top when finely adjusting the angle of the display screen, and no interference will be caused. In the later stage, when the display screen is used normally, it will not occupy the desktop space and affect the neatness and appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a first-view overall stereoscopic schematic diagram of the present invention;

[0035] Figure 2 It is a second perspective overall stereoscopic schematic diagram of the present invention;

[0036] Figure 3 It is the overall front view of the present invention;

[0037] Figure 4 For the present invention Figure 3 A magnified schematic diagram of the internal structure at A;

[0038] Figure 5It is a schematic diagram of the internal structure of the regulating mechanism of the present invention;

[0039] Figure 6 For the present invention Figure 5 The enlarged schematic diagram at B in FIG.

[0040] Figure 7 For the present invention Figure 5 The enlarged schematic diagram at C in FIG.

[0041] Figure 8 It is a schematic diagram of the support rod assembly of the present invention;

[0042] Fig. 9 For the present invention Figure 8 A magnified schematic diagram of the internal structure at D in FIG.

[0043] Fig.10 It is an overall right side view of the present invention;

[0044] Fig.11 It is a schematic diagram of the preparation state of the present invention;

[0045] Fig.12 It is a working schematic diagram of the adjustment mechanism and locking assembly of the present invention.

[0046] In the figure: 1, base; 2, mounting plate; 3, inner arm; 4, outer arm; 5, adjustment mechanism; 501, control slot; 502, hydraulic cylinder; 503, control rod; 504, mounting ring; 505, electromagnet ring; 506, adjustment block; 507, permanent magnet block; 508, hydraulic oil; 509, locking assembly; 5091, mounting slot; 5092, positioning block; 5093, return spring; 5094, teeth; 5095, check plate; 5096, permanent magnet block; 6, Sensing mechanism; 601, mounting column; 602, extension rod; 603, sensing sheet; 604, sliding sleeve; 605, positioning spring; 606, proximity sensor; 607, slider; 608, support rod group; 6081, first support rod; 6082, second support rod; 6083, folding groove; 6084, mounting shaft; 6085, compression spring; 6086, positioning hole; 6087, positioning pin; 6088, magnet sheet; 7, positioning panel; 8, controller; 9, limit groove. DETAILED DESCRIPTION

[0047] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0048] It should be noted that when an element is referred to as being "fixed", "mounted", "connected" or "disposed" with another element, it may be directly on the other element or indirectly on the other element. It should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying 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 operate in a specific orientation in the specification, and therefore cannot be understood as limiting the present invention.

[0049] As a further improvement of the present invention, the terms "first", "second", "third", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0050] See also Figure 1-12 As shown, the present invention provides a technical solution for an angle adjustment mechanism of a computer display screen: an angle adjustment mechanism of a computer display screen, comprising a freely rotatable base 1, a mounting plate 2 is symmetrically fixedly installed on the upper end surface of the base 1, an inner arm 3 is rotatably installed between the mounting plates 2 through a rotating shaft, an end of the inner arm 3 away from the base 1 is rotatably connected to an outer arm 4, an adjustment mechanism 5 for adjusting the radial angle of the inner arm 3 is installed on the upper end surface of the base 1, a sensing mechanism 6 for driving the adjustment mechanism 5 to operate is installed on the lower side of the outer arm 4, a positioning panel 7 for installing a display is rotatably connected to the end of the outer arm 4, the positioning panel 7 is generally a quick-release structure, in actual use, the positioning panel 7 is first connected to the screw hole on the back of the display screen by screws, and then the positioning panel 7 is sleeved on the end of the outer arm 4 to achieve installation, and a controller 8 is also installed on the upper end surface of the base 1;

[0051] The adjustment mechanism 5 includes a control groove 501, a mounting ring 504, hydraulic oil 508 and a locking assembly 509. The control groove 501 is opened at the rotating shaft at the end of the inner arm 3. A hydraulic cylinder 502 is installed on the upper end surface of the base 1 and located inside the control groove 501. The cylinder neck of the hydraulic cylinder 502 is a tubular arc and the center of the circle is on the axis of the rotating shaft of the inner arm 3. When the inner arm 3 rotates, the inner arm 3 will not interfere with the hydraulic cylinder 502 through the action of the control groove 501. A control rod 503 is connected to the cylinder neck of the hydraulic cylinder 502 in a sliding seal. The end of the control rod 503 is pressed against the slot at the end of the inner arm 3. The control rod 503 pushes the end of the inner arm 3 to rotate by telescoping in the cylinder neck of the hydraulic cylinder 502, thereby realizing the angle adjustment of the display. The mounting ring 504 is fixedly mounted on the lower end of the hydraulic cylinder 502, and the mounting ring 504 is slotted with an electromagnet ring 505. Both the mounting ring 504 and the electromagnet ring 505 are hollow structures. An adjustment block 506 is slidably connected above the electromagnet ring 505 in the hydraulic cylinder 502. The outer wall of the adjustment block 506 and the end of the control rod 503 are both slidably sealed with the inner wall of the hydraulic cylinder 502 by the Gley ring sealing method. The lower end of the adjustment block 506 is slotted with a permanent magnet block 507 that matches the electromagnet ring 505. Hydraulic oil 508 is filled in the hydraulic cylinder 502 between the adjustment block 506 and the control rod 503 to drive the control rod 503 to move. The electromagnet ring 505 is energized to generate a repulsive force on the permanent magnet block 507, thereby driving the adjustment block 506 to push the hydraulic oil 508, and pushing the control rod 503 out from the end of the hydraulic cylinder 502. The controller 8 adjusts the current of the electromagnet ring 505 to change the thrust output of the control rod 503. The locking assembly 509 is installed on the neck of the hydraulic cylinder 502 to locate the position of the control rod 503 and the angle of the inner arm 3.

[0052] After the base 1 is fixed on the table or work area, the sensing mechanism 6 is first turned on to support the outer arm 4, the controller 8 is turned on, and the display screen is set at the end of the outer arm 4 through the positioning panel 7. Then, after the controller 8 receives the information feedback from the sensing mechanism 6, it controls the electromagnet ring 505 to generate repulsive force on the permanent magnet block 507 and the adjustment block 506, and applies thrust to the end of the inner arm 3 through the hydraulic oil 508 and the control rod 503. As the current increases, the thrust gradually increases until the thrust feedback from the sensing mechanism 6 and the gravity of the display screen are balanced, and the sensing mechanism 6 can be recovered. At this time, the display screen, the outer arm 4 and the inner arm 3 are all in a balanced state. If the user needs to further adjust the radial angle or height of the display screen, just push and pull the display screen body directly. Since the display screen is in a balanced state at this time, only a very small force needs to be applied to break the balance, and the display screen is driven to move upward or downward according to the direction of the applied force. After moving to the specified angle and height, press the locking component 509 to lock it.

[0053] Through the adjustment mechanism 5, precise control of the torque of the support arm is achieved. Compared with the spring damping of the traditional display screen bracket, the operation process is simple and convenient, so that the display screen can be in a balanced suspended state with the outer support arm 4 and the inner support arm 3 after installation. At this time, the user can use a smaller thrust to break the balance, and then independently and accurately adjust the specific height and radial angle of the display screen, thereby improving the adjustment comfort. In addition, for display screens of different weights and sizes, the current size of the electromagnet ring 505 can be adjusted to quickly match them, which has stronger adaptability, not only expanding the upper and lower load-bearing limits, but also expanding the adjustable angle range, which is more in line with the actual usage needs of current users.

[0054] The sensing mechanism 6 includes a mounting column 601, a sleeve 604, a proximity sensor 606 and a slider 607. The mounting column 601 is fixedly mounted on the lower end surface of the outer support arm 4, and an extension rod 602 is mounted on the lower end of the mounting column 601, and a sensing sheet 603 is mounted on the extension rod 602. The sleeve 604 is slidably connected in the slide groove on the outer wall of the mounting column 601, and the end of the sleeve 604 is slidably connected to the extension rod 602 by opening a through hole. Positioning springs 605 are movably mounted on both upper and lower sides of the sensing sheet 603 in the sleeve 604, and the positioning springs 605 are sleeved on the extension rod 602. The proximity sensor 606 is arranged on the inner wall of the sleeve 604, and is located on both upper and lower sides of the sensing sheet 603. The position of the sleeve 604 is adjusted by the tension of the upper and lower positioning springs 605, so that the sensing sheet 603 is located between the upper and lower proximity sensors 606 and keeps balance. The slider 607 is slidably connected in a slide groove on one side of the sliding sleeve 604 , and a support rod group 608 is movably installed on one side of the slider 607 .

[0055] Before installing the display, Fig.11 As shown, first open the support rod set 608 to prop up the outer support arm 4. After the display screen is set up at the end of the outer support arm 4, the gravity of the display screen is completely supported by the support rod group 608. The induction sheet 603 is moved downward by the gravity of the display screen to overcome the elastic force of the positioning spring 605 and trigger the proximity sensor 606 below. After receiving the electrical signal from the proximity sensor 606, the controller 8 controls the electromagnet ring 505 to energize to generate a repulsive force on the permanent magnet block 507 and gradually increase the current. As the current increases, the supporting force of the outer support arm 4 and the inner support arm 3 on the display screen gradually increases, and the gravity of the display screen borne by the support rod group 608 gradually decreases. When the gravity of the display screen is completely transferred to the outer support arm 4 and the inner support arm 3, the support rod group 608 is no longer subjected to force, and the current on the electromagnet ring 505 remains constant. At this time, the support rod group 608 can be folded and recovered, that is, the display screen, the outer support arm 4 and the inner support arm 3 are all in a balanced state, the display screen remains suspended, and the induction sheet 603 is also stabilized between the upper and lower proximity sensors 606 under the action of the positioning spring 605.

[0056] When the user needs to further accurately adjust the height or radial angle of the display screen, the user holds the sliding sleeve 604 with his hand. When the display screen needs to move upward or downward, the sliding sleeve 604 is pushed upward or pulled downward. After the sliding sleeve 604 is subjected to force, the balance of the display screen is broken, and the display screen is first driven to move up and down. Since the positions of the control rod 503, the outer support arm 4, the inner support arm 3 and the adjustment block 506 are changed during the movement of the display screen, the size of the repulsive force between the electromagnet ring 505 and the permanent magnet block 507 also changes accordingly. At this time, part of the gravity of the display screen is transferred to the sensor sheet 603, the sliding sleeve 604 and the positioning spring 605, breaking the balance inside the sliding sleeve 604. After the proximity sensor 606 is triggered, the controller 8 actively adjusts the repulsive force of the electromagnet ring 505 on the permanent magnet block 507, thereby achieving the effect of actively adjusting the height and radial angle of the display screen.

[0057] For example, when the user pushes the sliding sleeve 604 upward, the display screen moves upward. When the repulsive force of the electromagnet ring 505 is constant, the end of the inner support arm 3 rotates away from the control rod 503, and the control rod 503 is pushed out under the pressure of the hydraulic oil 508 to keep in contact with the inner support arm 3. At this time, although the control rod 503 is still in contact with the inner support arm 3, the pressure of the hydraulic oil 508 decreases, and the adjustment block 506 also moves upward. The supporting force of the inner support arm 3 and the outer support arm 4 on the display screen is reduced. At this time, the excess gravity of the display screen is reversed. The electric signal is fed to the sensing sheet 603, the sliding sleeve 604 and the positioning spring 605, and the balance of the three is also broken. The sliding sleeve 604 overcomes the elastic force of the positioning spring 605 under the gravity of the display screen, so that the proximity sensor 606 on the lower side contacts the sensing sheet 603. After receiving the electric signal, the controller 8 increases the current on the electromagnet ring 505, and the display screen can be actively raised at this time. The slight force applied by the user to the sliding sleeve 604 is only used to break the balance in the sliding sleeve 604 to trigger the proximity sensor 606 and send an electric signal to the controller 8. On the contrary, when the sliding sleeve 604 is pulled downward, the proximity sensor 606 on the upper side will be triggered, and the controller 8 will also control to reduce the current on the electromagnet ring 505 and thus reduce the repulsive force on the adjustment block 506, so as to achieve the effect of actively lowering the display screen.

[0058] Through the sensing mechanism 6, the stress condition of the support rod group 608 can be quickly fed back to the controller 8, and the current of the electromagnet ring 505 can be actively adjusted, so that the display screen, the outer support arm 4 and the inner support arm 3 can quickly reach a balanced state. After the display screen is suspended in the air, the current of the electromagnet ring 505 can be further actively adjusted by pushing and pulling the sliding sleeve 604 up and down to adjust the radial angle of the display screen. The entire adjustment process is relatively labor-saving and the operation is simple and quick. For display screens of different specifications and weights, the adjustment method and adjustment force are also consistent. The adjustment process is linearly controllable, and it is also more friendly to female users.

[0059] The locking assembly 509 includes a mounting groove 5091, a check plate 5095 and a permanent magnet 5096. The mounting groove 5091 is provided at the end of the cylinder neck of the hydraulic cylinder 502, a positioning block 5092 is slidably connected in the mounting groove 5091, a return spring 5093 for lifting the positioning block 5092 is provided between the mounting groove 5091 and the positioning block 5092, and teeth 5094 matching each other are provided on the end faces of the positioning block 5092 and the control rod 503, and when the teeth 5094 on the positioning block 5092 are engaged with the control rod 503, the control rod 503 can be locked, and a positioning piece is also provided on the rod wall of the control rod 503 away from the teeth 5094 and the end of the cylinder neck of the hydraulic cylinder 502, so as to ensure that the control rod 503 can only rotate in the hydraulic cylinder 502 and cannot slide, and the positioning piece can be a matching notch. The check piece 5095 is slidably connected to the cylinder neck of the hydraulic cylinder 502 on one side of the installation groove 5091. A slot matching the check piece 5095 is provided above the positioning block 5092. A paddle is provided at the upper end of the check piece 5095. The paddle passes through the through slot on the hydraulic cylinder 502 and is arranged on the outer side of the hydraulic cylinder 502 to facilitate the user to paddle the check piece 5095 to reset it later. The permanent magnet block 5096 is respectively installed in the cylinder wall of the hydraulic cylinder 502 and at the end of the check piece 5095. The permanent magnet block 5096 always exerts a repulsive force on the check piece 5095 through the action of the magnetic field.

[0060] When it is necessary to lock the control rod 503, the user presses the positioning block 5092, and the positioning block 5092 overcomes the elastic force of the return spring 5093 and moves toward the control rod 503 until the teeth 5094 of the two are engaged with each other. At this time, the slot above the positioning block 5092 corresponds to the check plate 5095, and the check plate 5095 is inserted into the slot above the positioning block 5092 under the repulsive force of the permanent magnet block 5096. At this time, the control rod 503 is locked, the electromagnet ring 505 can be powered off, and the display screen, outer arm 4 and inner arm 3 can all remain stable. When it is necessary to unlock the control rod 503 and readjust the display screen at a later stage, the electromagnet ring 505 is energized again or the inner arm 3 is lifted up, so that the control rod 503 and the positioning block 5092 are in a relatively loose state, and the paddle on the check plate 5095 is moved to overcome the repulsive force of the permanent magnet block 5096 and drive the check plate 5095 to reset. At this time, the positioning block 5092 is separated from the control rod 503 under the action of the reset spring 5093, and the control rod 503 is unlocked.

[0061] Through the locking assembly 509, the control rod 503 is effectively locked, so that the display screen does not need to rely on the electromagnet ring 505 to maintain balance during later use, which significantly improves the stability of the display screen. In addition, the hydraulic cylinder 502 does not need to maintain a high pressure state during the later use of the display screen. The overall service life of the equipment is also improved, and the cost of use is reduced.

[0062] The support rod assembly 608 includes a first support rod 6081 and a folding groove 6083. One end of the first support rod 6081 is rotatably connected to one side of the slider 607, and the other end of the first support rod 6081 is rotatably connected to the second support rod 6082. The folding groove 6083 is provided on the lower end surface of the outer arm 4, and the second support rod 6082 is foldably installed in the folding groove 6083. At this time, the slider 607 should be located in the middle of the sliding groove on the side wall of the sliding sleeve 604, so that when the user pushes or pulls the sliding sleeve 604 upward or downward, sufficient space can be reserved for the sliding sleeve 604 to move up and down relative to the slider 607.

[0063] The ends of the slider 607 and the second support rod 6082 are both installed with a mounting shaft 6084, the first support rod 6081 is sleeved on the mounting shaft 6084 by opening a through hole, and the end of the mounting shaft 6084 is installed with a compression spring 6085 for clamping the first support rod 6081, and positioning holes 6086 are opened on the end side walls of the slider 607 and the second support rod 6082, and positioning pins 6087 matching the positioning holes 6086 are opened on the side walls at both ends of the first support rod 6081.

[0064] When the first support rod 6081 and the second support rod 6082 need to be opened or folded, the elastic force of the compression spring 6085 is overcome to push the end of the first support rod 6081 away from the slider 607 or the second support rod 6082 until the positioning pin 6087 at that location is separated from the positioning hole 6086, and the joint at that location can be rotated to open or fold. The positions of the positioning pin 6087 and the positioning hole 6086 are set, and only when the first support rod 6081 and the second support rod 6082 are fully opened or folded, the positioning pin 6087 is just inserted into the positioning hole 6086 to achieve a locking effect.

[0065] Matching magnet sheets 6088 are attached on the rod wall of the second support rod 6082 and in the folding groove 6083 for folding positioning of the second support rod 6082. When the first support rod 6081 and the second support rod 6082 are in a folded state, the second support rod 6082 is attracted to the folding groove 6083 by the magnet sheet 6088 to prevent it from slipping.

[0066] Through the support rod group 608, the support rod can be folded and stored after the display screen, the outer arm 4 and the inner arm 3 are balanced, so that the user cannot contact the table when fine-tuning the angle of the display screen, and there will be no interference. Later, when the display screen is used normally, it will not occupy desktop space and affect the neatness and aesthetics.

[0067] The mounting ring 504 is suspended at the lower end of the hydraulic cylinder 502 . A vent hole is provided at the lower end of the hydraulic cylinder 502 . When the adjusting block 506 moves up and down, the air at the lower end of the hydraulic cylinder 502 flows through the vent hole, keeping the atmospheric pressure below the hydraulic cylinder 502 constant without interfering with the adjusting block 506 .

[0068] The controller 8 is electrically connected to the electromagnet ring 505 and the proximity sensor 606 through a wire. The controller 8 determines the relative position of the induction sheet 603 and the sliding sleeve 604 by receiving the electrical signal of the proximity sensor 606 , thereby adjusting the current of the electromagnet ring 505 accordingly.

[0069] A limiting groove 9 matching the profile of the end of the inner arm 3 is provided on the upper end surface of the base 1 . The limiting groove 9 can limit the maximum rotation angle of the inner arm 3 , which generally does not exceed 90 degrees.

[0070] Working principle: When the base 1 is fixed on the table or work area, Fig.11 As shown, the first support rod 6081 and the second support rod 6082 are opened to prop up the outer support arm 4. Then the controller 8 is turned on, and the display screen is set at the end of the outer support arm 4 through the positioning panel 7. At this time, the gravity of the display screen is completely supported by the support rod group 608, and the induction sheet 603 is moved downward by the gravity of the display screen to overcome the elastic force of the positioning spring 605, and triggers the proximity sensor 606 below. After receiving the electrical signal of the proximity sensor 606, the controller 8 controls the electromagnet ring 505 to generate a repulsive force on the permanent magnet block 507, and gradually increases the current. As the current increases, the support force of the outer support arm 4 and the inner support arm 3 on the display screen is gradually strengthened, until the gravity of the display screen is completely transferred to the outer support arm 4 and the inner support arm 3, the support rod group 608 is no longer stressed, and the current on the electromagnet ring 505 remains constant. At this time, the first support rod 6081 and the second support rod 6082 can be folded and recovered, that is, the display screen, the outer support arm 4 and the inner support arm 3 are all in a balanced state, and the display screen remains suspended.

[0071] If the user needs to further adjust the radial angle or height of the display screen, the user holds the sliding sleeve 604, and when the display screen needs to move up or down, the sliding sleeve 604 is pushed up or pulled down. After the sliding sleeve 604 is subjected to force, the current balance of the display screen is broken, and the display screen is first driven up and down. As the position of the sliding sleeve 604 changes, the balance of the sensor sheet 603, the sliding sleeve 604 and the positioning spring 605 is also broken, triggering the proximity sensor 606, and then the controller 8 starts to actively adjust the current on the electromagnet ring 505, thereby actively adjusting the radial angle of the display screen. If the left and right viewing angles of the display screen need to be adjusted, it can be directly rotated, and the connection parts of the inner support arm 3 and the outer support arm 4, as well as the base 1 can directly meet the adjustment requirements.

[0072] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0073] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A computer display screen angle adjustment mechanism, comprising a base (1), wherein a mounting plate (2) is symmetrically arranged on the upper end surface of the base (1), characterized in that: An inner support arm (3) is rotatably mounted between the mounting plates (2) via a rotating shaft; an end of the inner support arm (3) away from the base (1) is rotatably connected to an outer support arm (4); an adjustment mechanism (5) for adjusting the radial angle of the inner support arm (3) is provided on the upper end surface of the base (1); a sensing mechanism (6) for driving the adjustment mechanism (5) to operate is provided on the lower side of the outer support arm (4); an end of the outer support arm (4) is rotatably connected to a positioning panel (7) for mounting a display; and a controller (8) is also provided on the upper end surface of the base (1); The regulating mechanism (5) comprises: A control groove (501), the control groove (501) being opened at the rotating shaft of the end of the inner support arm (3), a hydraulic cylinder (502) being arranged on the upper end surface of the base (1) and located inside the control groove (501), the cylinder neck of the hydraulic cylinder (502) being a tubular arc and the center of the circle being on the axis of the rotating shaft of the inner support arm (3), a control rod (503) being slidably sealedly connected inside the cylinder neck of the hydraulic cylinder (502), the control rod (503) being used to push the end of the inner support arm (3) to adjust the angle of the display; A mounting ring (504), the mounting ring (504) being arranged at the lower end of the hydraulic cylinder (502), the mounting ring (504) being provided with an electromagnet ring (505) in a slot, an adjustment block (506) being slidably and sealingly connected above the electromagnet ring (505) in the hydraulic cylinder (502), the lower end of the adjustment block (506) being provided with a permanent magnet block (507) matching the electromagnet ring (505); Hydraulic oil (508), the hydraulic oil (508) is filled in the hydraulic cylinder (502) and is located between the adjustment block (506) and the control rod (503) to drive the control rod (503) to move; A locking assembly (509), wherein the locking assembly (509) is arranged on the neck of the hydraulic cylinder (502) and is used to locate the position of the control rod (503) and the angle of the inner support arm (3); The sensing mechanism (6) comprises: A mounting column (601), the mounting column (601) being arranged on the lower end surface of the outer support arm (4), an extension rod (602) being arranged at the lower end of the mounting column (601), and a sensing sheet (603) being arranged on the extension rod (602); A sliding sleeve (604), wherein the sliding sleeve (604) is slidably connected to a sliding groove on the outer wall of the mounting column (601), and an end of the sliding sleeve (604) is slidably connected to the extension rod (602) via a through hole, and positioning springs (605) are provided on both upper and lower sides of the sensing sheet (603) in the sliding sleeve (604), and the positioning springs (605) are sleeved on the extension rod (602); A proximity sensor (606), the proximity sensor (606) being arranged on the inner wall of the sliding sleeve (604) and located on the upper and lower sides of the sensing sheet (603); A sliding block (607) is slidably connected in a sliding groove on one side of the sliding sleeve (604), and a support rod group (608) is movably provided on one side of the sliding block (607).

2. The computer display screen angle adjustment mechanism according to claim 1, characterized in that: The locking assembly (509) comprises: An installation groove (5091), the installation groove (5091) being provided at the end of the cylinder neck of the hydraulic cylinder (502), a positioning block (5092) being slidably connected in the installation groove (5091), a return spring (5093) for lifting the positioning block (5092) being provided between the installation groove (5091) and the positioning block (5092), and teeth (5094) matching each other being provided on the end surfaces of the positioning block (5092) and the control rod (503); A check plate (5095), the check plate (5095) being slidably connected to the cylinder neck of the hydraulic cylinder (502) at one side of the mounting groove (5091), and a slot matching the check plate (5095) being provided above the positioning block (5092); A permanent magnet block (5096) is disposed in the cylinder wall of the hydraulic cylinder (502) and at the end of the check plate (5095), respectively. The permanent magnet block (5096) always applies a repulsive force to the check plate (5095) through the action of a magnetic field.

3. The computer display screen angle adjustment mechanism according to claim 2, characterized in that: The support rod assembly (608) comprises: A first support rod (6081), one end of the first support rod (6081) being rotatably connected to one side of the slider (607), and the other end of the first support rod (6081) being rotatably connected to a second support rod (6082); A folding groove (6083), wherein the folding groove (6083) is provided on the lower end surface of the outer support arm (4), and the second support rod (6082) is folded and installed in the folding groove (6083).

4. The computer display screen angle adjustment mechanism according to claim 3, characterized in that: The ends of the slider (607) and the second support rod (6082) are both provided with mounting shafts (6084); the first support rod (6081) is sleeved on the mounting shaft (6084) by opening a through hole; the end of the mounting shaft (6084) is provided with a compression spring (6085) for pressing the first support rod (6081); positioning holes (6086) are opened on the side walls of the ends of the slider (607) and the second support rod (6082); and positioning pins (6087) matching the positioning holes (6086) are opened on the side walls at both ends of the first support rod (6081).

5. The computer display screen angle adjustment mechanism according to claim 4, characterized in that: Mutually matching magnet sheets (6088) are arranged on the rod wall of the second support rod (6082) and in the folding groove (6083) for folding and positioning the second support rod (6082).

6. The computer display screen angle adjustment mechanism according to claim 1, characterized in that: The mounting ring (504) is suspended and mounted on the lower end of the hydraulic cylinder (502); a vent hole is provided on the lower end of the hydraulic cylinder (502).

7. The computer display screen angle adjustment mechanism according to claim 2, characterized in that: The controller (8) is electrically connected to the electromagnet ring (505) and the proximity sensor (606) via a wire.

8. The computer display screen angle adjustment mechanism according to claim 1, characterized in that: A limiting groove (9) matching the profile of the end of the inner support arm (3) is provided on the upper end surface of the base (1).

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