Angle adjustment components and monitor stand arm

Abstract

This utility model discloses an angle adjustment component and a monitor stand arm, relating to the field of monitor stand technology. The angle adjustment component includes a drive unit. A fixed frame has a mounting side adjacent to the front, and the drive unit is located on the mounting side. The drive unit includes a turntable, a push shaft, a connecting rod, and a power component. One end of the connecting rod has an elongated hole and is slidably connected to the fixed frame; the other end of the connecting rod is rotatably connected to a mounting plate. The turntable is rotatably mounted on the fixed frame. The power component is located on the fixed frame and driven by the turntable. The push shaft is located on the turntable and is eccentrically positioned to the center of the turntable. The end of the push shaft away from the turntable is slidably located in the elongated hole and drives the connecting rod to slide, causing the mounting plate to rotate relative to the connecting bracket. The technical solution provided by this utility model automates monitor angle adjustment.

Description

Technical Field

[0001] This utility model relates to the field of monitor bracket technology, and in particular to an angle adjustment component and a monitor bracket arm. Background Technology

[0002] With the increasing popularity of monitors, users have placed higher demands on their installation methods. Currently, monitors are mainly installed using monitor arms, with the monitor mounted on a VESA adapter plate on the monitor arm. Monitor arms typically have an angle adjustment component, and the VESA adapter plate is mounted to the support body of the monitor arm via this component. The angle adjustment component allows adjustment of the VESA adapter plate's angle to achieve monitor angle adjustment.

[0003] Most existing monitor arm angle adjustment components use a single hinge structure, with the hinges connected by hexagonal screws. Adjusting the screws adjusts the hinge pressure, and manually adjusting the VESA adapter plate rotates to adjust the monitor angle. Existing angle adjustment components require manual operation, which is inconvenient and cannot automate the angle adjustment process. Utility Model Content

[0004] The main purpose of this invention is to provide an angle adjustment component and a monitor support arm, which aims to automate the adjustment of the monitor angle.

[0005] To achieve the above objectives, the present invention proposes an angle adjustment component for adjusting the angle of a mounting plate, comprising:

[0006] A fixing frame is located on one side of the mounting plate, and the fixing frame has a front facing the mounting plate;

[0007] The connecting bracket is fixed to the fixed frame and rotates with the mounting plate; and

[0008] The drive unit includes a fixed frame with an installation side adjacent to the front side. The installation side is equipped with the drive unit, which includes a turntable, a push shaft, a connecting rod, and a power component. One end of the connecting rod has an elongated hole and is slidably connected to the fixed frame. The other end of the connecting rod is rotatably connected to the mounting plate. The turntable is rotatably mounted on the fixed frame. The power component is mounted on the fixed frame and is driven by the turntable. The push shaft is mounted on the turntable and is eccentrically positioned to the center of the turntable. The end of the push shaft away from the turntable is slidably mounted in the elongated hole and drives the connecting rod to slide, causing the mounting plate to rotate relative to the connecting bracket.

[0009] In one embodiment, two connecting brackets are provided, located at opposite ends of the front side, and the two connecting brackets and the drive unit are arranged in a triangular support layout.

[0010] In one embodiment, each of the connecting brackets includes:

[0011] The first bracket, one end of which is fixed to the front; and

[0012] The second bracket has one end fixed to the mounting plate, and the other end of the second bracket is rotatably connected to the other end of the first bracket.

[0013] In one embodiment, each of the connecting brackets further includes:

[0014] The connecting shaft has through holes at the ends of both the first and second brackets that are close to each other, and the connecting shaft movably passes through both through holes; and

[0015] The connecting shaft is provided with a limiting member at each of its opposite ends. The two limiting members abut against the opposite sides of the first bracket and the second bracket to restrict the connecting shaft at the through hole.

[0016] In one embodiment, one of the first bracket and the second bracket is provided with an annular protrusion, and the other of the first bracket and the second bracket is provided with an annular groove. The annular protrusion can be embedded in the annular groove and rotate along the groove wall of the annular groove.

[0017] In one embodiment, the driving unit further includes:

[0018] A circuit board is disposed on the fixed frame and located on the side of the turntable opposite to the elongated hole; the circuit board is electrically connected to the power component.

[0019] A Hall effect switch is located on the side of the circuit board facing the turntable and is electrically connected to the circuit board; and

[0020] A magnetic component is disposed on the side of the turntable facing the circuit board and opposite to the push shaft. When the turntable drives the magnetic component to rotate to be opposite the Hall switch, the circuit board controls the power component to stop running.

[0021] In one embodiment, a Hall switch is provided at each of the opposite ends of the circuit board, and the two Hall switches are spaced apart along the axial direction of the connecting rod. The turntable drives the magnetic component to move between the two Hall switches.

[0022] In one embodiment, the driving unit further includes:

[0023] A fixing block is provided on the mounting side, and the fixing block has a through hole, through which the connecting rod is movably inserted.

[0024] In one embodiment, the driving unit further includes:

[0025] A ball head is located at one end of the connecting rod facing the mounting plate, and the ball head is rotatably connected to the mounting plate.

[0026] This utility model also proposes a display support arm, including a mounting plate and an angle adjustment assembly as described in any of the above embodiments.

[0027] The technical solution of this utility model involves setting a fixed frame, a connecting bracket, and a driving unit in the angle adjustment component. The fixed frame is located on one side of the mounting plate and has a front facing the mounting plate. The connecting bracket is fixed to the fixed frame and rotates with the mounting plate. The fixed frame has a mounting side adjacent to the front, and the mounting side is equipped with a driving unit. The driving unit includes a turntable, a push shaft, a connecting rod, and a power component. One end of the connecting rod has an elongated hole and is slidably connected to the fixed frame, while the other end of the connecting rod is rotatably connected to the mounting plate. The turntable is rotatably mounted on the fixed frame, and the power component is mounted on the fixed frame and driven by the turntable. The push shaft is mounted on the turntable and is eccentrically positioned relative to the center of the turntable. The end of the push shaft away from the turntable is slidably mounted in the elongated hole and drives the connecting rod to slide, causing the mounting plate to rotate relative to the connecting bracket. Compared to the manually adjustable angle adjustment components in the prior art, the technical solution of this utility model is equipped with a drive unit. By using a power component to drive the turntable to rotate, the push shaft moves along the elongated hole toward or away from the mounting plate. The push shaft pushes against the wall of the elongated hole, thereby driving the connecting rod to slide toward or away from the mounting plate, so that the mounting plate rotates relative to the connecting bracket, thus realizing the automation of the mounting plate angle adjustment, and thus realizing the automation of the display angle adjustment. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0029] Figure 1 A schematic diagram of an embodiment of the angle adjustment component provided by this utility model;

[0030] Figure 2 for Figure 1 A schematic diagram of the structure of an embodiment from another perspective;

[0031] Figure 3 for Figure 1 A cross-sectional view of one embodiment;

[0032] Figure 4 for Figure 1 An exploded view of one embodiment of the connecting bracket.

[0033] Explanation of icon numbers:

[0034] 10. Angle adjustment assembly; 20. Mounting plate; 30. Connecting plate;

[0035] 100. Fixing frame; 110. Mounting side; 120. Wire hole;

[0036] 200. Connecting bracket; 210. First bracket; 211. Annular protrusion; 220. Second bracket; 221. Annular groove; 231. Connecting shaft; 232. Limiting component;

[0037] 310 Turntable; 320 Push shaft; 330 Connecting rod; 331 Long hole; 340 Ball head; 350 Power component; 360 Circuit board; 361 Hall switch; 370 Fixing block; 380 Mounting base.

[0038] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0039] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0040] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0041] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0042] With the increasing popularity of monitors, users have placed higher demands on their installation methods. Currently, monitors are mainly installed using monitor arms, with the monitor mounted on a VESA adapter plate on the monitor arm. Monitor arms typically have an angle adjustment component, and the VESA adapter plate is mounted to the support body of the monitor arm via this component. The angle adjustment component allows adjustment of the VESA adapter plate's angle to achieve monitor angle adjustment.

[0043] Most existing monitor arm angle adjustment components use a single hinge structure, with the hinges connected by hexagonal screws. Adjusting the screws adjusts the hinge pressure, and manually adjusting the VESA adapter plate rotates to adjust the monitor angle. Existing angle adjustment components require manual operation, which is inconvenient and cannot automate the angle adjustment process.

[0044] This invention proposes an angle adjustment component and a monitor support arm to automate monitor angle adjustment.

[0045] Please see Figures 1 to 3In one embodiment, the angle adjustment assembly 10 includes a fixed frame 100, a connecting bracket 200, and a drive unit. The fixed frame 100 is located on one side of the mounting plate 20 and has a front facing the mounting plate 20. The connecting bracket 200 is fixed to the fixed frame 100 and rotates with the mounting plate 20. The fixed frame 100 has a mounting side 110 adjacent to the front, and the mounting side 110 is provided with a drive unit. The drive unit includes a turntable 310, a push shaft 320, a connecting rod 330, and a power component 350. One end of the rod 330 is provided with an elongated hole 331 and is slidably connected to the fixed frame 100. The other end of the connecting rod 330 is rotatably connected to the mounting plate 20. The turntable 310 is rotatably mounted on the fixed frame 100. The power component 350 is mounted on the fixed frame 100 and is drivenly connected to the turntable 310. The push shaft 320 is mounted on the turntable 310 and is eccentrically set with respect to the center of the turntable 310. The end of the push shaft 320 away from the turntable 310 is slidably mounted in the elongated hole 331 and drives the connecting rod 330 to slide so that the mounting plate 20 rotates relative to the connecting bracket 200.

[0046] Angle adjustment component 10 is used to adjust the angle of mounting plate 20. The angle adjustment component 10 is located on one side of mounting plate 20, and the other side of mounting plate 20 is used to mount a monitor. The angle adjustment component 10 adjusts the angle of the monitor by adjusting the angle of mounting plate 20. Mounting plate 20 is typically a VESA adapter board; however, this is not a limitation.

[0047] The fixing frame 100 serves as a support and mounting base for the angle adjustment assembly 10. The mounting plate 20 is located on one side of the fixing frame 100, with the side of the fixing frame 100 facing the mounting plate 20 being the front. In the initial state, the mounting plate 20 is vertical, meaning the plane of the mounting plate 20 is parallel to the front. In one embodiment, a connecting plate 30 is provided on the side of the fixing frame 100 away from the mounting plate 20. The connecting plate 30 is used for fixed connection to the support body of the display bracket arm, thereby mounting the fixing frame 100 onto the support body. Specifically, in one embodiment, the connecting plate 30 has multiple mounting holes for mounting the connecting plate 30 onto the support body using fasteners such as bolts or rivets. Of course, in other embodiments, the connecting plate 30 can also be welded or snapped to the support body, or the fixing frame 100 can be directly connected to the support body; no limitation is imposed here.

[0048] The connecting bracket 200 is used to achieve a rotatable connection between the fixed frame 100 and the mounting plate 20. In one embodiment, one end of the connecting bracket 200 is fixed to the fixed frame 100, and the other end of the connecting bracket 200 is rotatably connected to the mounting plate 20. The mounting plate 20 can rotate relative to the connecting bracket 200 so that the plane on which the mounting plate 20 is located is tilted relative to the front.

[0049] The drive unit drives the mounting plate 20 to rotate relative to the connecting bracket 200, thereby causing the mounting plate 20 to rotate relative to the fixed frame 100, thus achieving angle adjustment. In one embodiment, the plane of the mounting side 110 is perpendicular to the front surface, and the drive unit is located on the mounting side 110 to achieve angle adjustment of the mounting plate 20 in two directions. Specifically, in one embodiment, the mounting side 110 is located at the upper or lower end of the front surface, and the connecting bracket 200 is located near the left and / or right end of the front surface, so that the drive unit can be used to swing the mounting plate 20 in the vertical direction, thereby achieving forward tilting or backward tilting of the mounting plate 20. In another embodiment, the mounting side 110 is located at the left or right end of the front surface, and the connecting bracket 200 is located near the upper and / or lower end of the front surface, so that the drive unit can be used to swing the mounting plate 20 in the horizontal direction, thereby achieving leftward tilting or rightward tilting of the mounting plate 20. Here, no limitation is made. The following description uses the mounting side 110 located at the upper end of the front surface as an example.

[0050] One end of the extension rod is slidably connected to the mounting side 110, and the other end is rotatably connected to the mounting plate 20. The connection between the extension rod and the mounting plate 20 is near the upper end of the mounting plate 20. A turntable 310 is rotatably mounted on the mounting side 110, located between the extension rod and the mounting side 110 and opposite to the elongated hole 331. A push shaft 320 is located on the side of the turntable 310 facing the elongated hole 331 and is eccentrically positioned to ensure that the rotation of the turntable 310 can drive the push shaft 320 to rotate around the center of the turntable 310 and move along the elongated hole 331. The extension direction of the elongated hole 331 is perpendicular to the axial direction of the connecting rod 330. The output shaft of the power component 350 is connected to the center of the turntable 310 to drive the turntable 310 to rotate around its own axial direction. The power component 350 can be configured as a motor or cylinder, etc., and is not limited here.

[0051] In the initial state, the push shaft 320 is located at the end of the elongated hole 331, which coincides with the center of the turntable 310. The power component 350 drives the turntable 310 to rotate around its own axis in the first direction, causing the push shaft 320 to move away from the mounting plate 20. The push shaft 320 pushes against the wall of the elongated hole 331 and moves along the wall of the elongated hole 331, causing the extension rod to move away from the mounting plate 20. The extension rod pulls the mounting plate 20, causing the mounting plate 20 to rotate relative to the connecting bracket 200. The upper end of the mounting plate 20 tilts towards the fixed frame 100, achieving the backward tilting of the mounting plate 20. The power component 350 can also drive the turntable 310 to rotate around its own axis in the second direction, causing the push shaft 320 to move towards the mounting plate 20. The push shaft 320 pushes against the wall of the elongated hole 331 and moves along the wall of the elongated hole 331, causing the extension rod to move towards the mounting plate 20. The extension rod pushes the mounting plate 20, causing the mounting plate 20 to rotate relative to the connecting bracket 200. The upper end of the mounting plate 20 tilts away from the fixed frame 100, achieving a forward tilt of the mounting plate 20. The first direction and the second direction are respectively clockwise and counterclockwise, and the first direction is opposite to the second direction; however, this is not a limitation.

[0052] The technical solution of this utility model involves setting a fixed frame 100, a connecting bracket 200, and a driving unit in the angle adjustment component 10. The fixed frame 100 is located on one side of the mounting plate 20 and has a front facing the mounting plate 20. The connecting bracket 200 is fixed to the fixed frame 100 and rotates with the mounting plate 20. The fixed frame 100 has a mounting side 110 adjacent to the front, and the mounting side 110 is equipped with a driving unit, which includes a turntable 310, a push shaft 320, a connecting rod 330, and a power component 350. One end of the connecting rod 330 is provided with an elongated hole 331 and is slidably connected to the fixed frame 100. The other end of the connecting rod 330 is rotatably connected to the mounting plate 20. The turntable 310 is rotatably mounted on the fixed frame 100. The power component 350 is mounted on the fixed frame 100 and is drivenly connected to the turntable 310. The push shaft 320 is mounted on the turntable 310 and is eccentrically set with respect to the center of the turntable 310. The end of the push shaft 320 away from the turntable 310 is slidably mounted in the elongated hole 331 and drives the connecting rod 330 to slide so that the mounting plate 20 rotates relative to the connecting bracket 200. Compared to the manually adjustable angle adjustment component 10 in the prior art, the technical solution of this utility model is provided with a drive unit. By using the power component 350 to drive the turntable 310 to rotate, the push shaft 320 is driven to move along the elongated hole 331 in a direction closer to or away from the mounting plate 20. The push shaft 320 pushes against the hole wall of the elongated hole 331, thereby driving the connecting rod 330 to slide in a direction closer to or away from the mounting plate 20, so that the mounting plate 20 rotates relative to the connecting bracket 200, realizing the automation of the angle adjustment of the mounting plate 20, and thus realizing the automation of the display angle adjustment.

[0053] Please see Figure 1 and Figure 2 In one embodiment, there are two connecting brackets 200, which are located at opposite ends of the front side, and the two connecting brackets 200 and the drive unit are arranged in a triangular support layout.

[0054] Specifically, in one embodiment, two connecting brackets 200 are respectively located at the left and right ends of the front side. The ends of the two connecting brackets 200 facing the fixing frame 100 are fixed to the front side, and the ends of the two brackets away from the fixing frame 100 are rotatably connected to the mounting plate 20. The connection points of the two brackets and the mounting plate 20 are respectively close to the left and right ends of the mounting plate 20. The two connecting brackets 200 and the drive unit located at the upper end of the front side form a triangular support layout. Of course, in other embodiments, the ends of the connecting brackets 200 facing the fixing frame 100 can also be fixed to the side wall of the fixing frame 100, and the adjacent two ends of the side wall are respectively connected to the mounting side 110 and the front side; or, only one connecting bracket 200 can be provided, with one connecting bracket 200 located at the left or right end of the front side. Here, there is no limitation.

[0055] The technical solution of this utility model embodiment, by setting two connecting brackets 200, not only realizes the rotatable connection between the mounting plate 20 and the fixed frame 100, but also cooperates with the drive unit to provide triangular support for the mounting plate 20, thus ensuring the connection stability between the mounting plate 20 and the fixed frame 100.

[0056] Please see Figure 3 and Figure 4 In one embodiment, each connecting bracket 200 includes a first bracket 210 and a second bracket 220. One end of the first bracket 210 is fixed to the front side; one end of the second bracket 220 is fixed to the mounting plate 20, and the other end of the second bracket 220 is rotatably connected to the other end of the first bracket 210.

[0057] In one embodiment, both the first bracket 210 and the second bracket 220 are configured as L-shaped brackets, making the connecting bracket 200 U-shaped, further improving the connection stability. Of course, in other embodiments, the first bracket 210 and the second bracket 220 may also be configured as plate-like structures, etc., and no limitation is made here.

[0058] Specifically, in one embodiment, each connecting bracket 200 further includes a connecting shaft 231 and a limiting member 232. The first bracket 210 and the second bracket 220 are provided with through holes at their respective close ends, and the connecting shaft 231 movably passes through the two through holes. A limiting member 232 is provided at each of the opposite ends of the connecting shaft 231, and the two limiting members 232 abut against the opposite sides of the first bracket 210 and the second bracket 220 respectively, so as to restrict the connecting shaft 231 at the through hole.

[0059] In one embodiment, the outer diameter of the connecting shaft 231 is smaller than the inner diameter of the through hole to ensure that the through hole can move relative to the connecting shaft 231; the outer diameters of the two limiting members 232 are both larger than the inner diameters of the two through holes, and at least one limiting member 232 is detachably connected to the connecting shaft 231 to achieve a detachable connection between the first bracket 210 and the second bracket 220. In one embodiment, the connecting shaft 231 is equipped with a screw, one limiting member 232 being the head of the screw, and the other limiting member 232 being a nut. Specifically, the head of the screw has a groove in the shape of an internal hexagon or a cross to facilitate adjusting the connection tightness of the first bracket 210 and the second bracket 220 using external tools, thereby changing the magnitude of the force required to rotate the second bracket 220 relative to the first bracket 210. When the screw passes through the two through holes, the nut is screwed to the tail of the screw, and the nut and the head of the screw abut against the two through holes respectively to restrict the screw at the through holes. In one embodiment, one of the first bracket 210 and the second bracket 220 is provided with a nut groove, which is coaxially arranged and connected to one of the through holes. The nut groove is designed to fit the shape of a nut, which can be a hexagonal nut or a square nut, etc., without limitation. Of course, in other embodiments, the connecting shaft 231 may also be configured with a shaft body with threads at both ends, and both limiting members 232 are configured as nuts to be screwed to the two ends of the shaft body, without limitation.

[0060] The technical solution of this utility model embodiment, by setting the connecting bracket 200 as a first bracket 210 and a second bracket 220, provides more space for the sliding of the connecting rod 330 relative to the fixed frame 100. Furthermore, the rotatable connection between one end of the first bracket 210 and the second bracket 220 increases the rotation range of the mounting plate 20 and expands the adjustable angle range. By setting the connecting shaft 231 and the limiting member 232, the rotatable connection between the first bracket 210 and the second bracket 220 is achieved, while also enabling quick assembly and disassembly of the first bracket 210 and the second bracket 220, improving ease of use.

[0061] Please see Figure 4 In one embodiment, one of the first bracket 210 and the second bracket 220 is provided with an annular protrusion 211, and the other of the first bracket 210 and the second bracket 220 is provided with an annular groove 221. The annular protrusion 211 can be embedded in the annular groove 221 and rotate along the groove wall of the annular groove 221.

[0062] In one embodiment, the first support 210 has an annular protrusion 211 protruding on the side facing the second support 220, and the second support 220 has an annular groove 221 recessed on the side facing the first support 210. Both the annular protrusion 211 and the annular groove 221 are coaxially arranged with the through hole. The annular protrusion 211 is arranged along the periphery of the through hole, and the annular groove 221 communicates with the through hole. When the first support 210 and the second support 220 are connected, the annular protrusion 211 is embedded in the annular groove 221, and the outer peripheral surface of the annular protrusion 211 fits against the groove wall of the annular groove 221. The annular protrusion 211 can rotate along the groove wall of the annular groove 221. Of course, in another embodiment, the first support 210 may also have an annular groove 221, and the second support 220 may have an annular protrusion 211; this is not a limitation.

[0063] The technical solution of this utility model embodiment, by setting an annular protrusion 211 and an annular groove 221, can prevent the first bracket 210 and the second bracket 220 from shaking when they rotate relative to each other, thereby improving the connection stability between the mounting plate 20 and the fixed frame 100.

[0064] Please see Figures 1 to 3 In one embodiment, the drive unit further includes a circuit board 360, a Hall switch 361, and a magnetic component. The circuit board 360 is disposed on the fixed frame 100 and located on the side of the turntable 310 opposite to the elongated hole 331. The circuit board 360 is electrically connected to the power component 350. The Hall switch 361 is disposed on the side of the circuit board 360 facing the turntable 310 and is electrically connected to the circuit board 360. The magnetic component (not shown) is disposed on the side of the turntable 310 facing the circuit board 360 and is disposed opposite to the push shaft 320. When the turntable 310 drives the magnetic component to rotate to be opposite to the Hall switch 361, the circuit board 360 controls the power component 350 to stop running.

[0065] In one embodiment, the fixing frame 100 has an internal receiving groove, and the front and mounting side 110 are both outer walls of the receiving groove. The fixing frame 100 also has a connection port communicating with the receiving groove, and the power component 350 is disposed in the receiving groove, with the output shaft of the power component 350 passing through the connection port to connect with the center of the turntable 310. In one embodiment, the circuit board 360 is configured as a disc-shaped structure, and the center of the circuit board 360 has a clearance hole. The inner diameter of both the clearance hole and the connection port is larger than the outer diameter of the output shaft of the power component 350, and the output shaft of the power component 350 passes through the connection port and the clearance hole in sequence. Further, in one embodiment, the fixing frame 100 has a mounting groove, the circuit board 360 is disposed in the mounting groove, and the fixing frame 100 also has a wire hole 120 communicating with the receiving groove, so that the wires can be electrically connected to the circuit board 360 and the power component 350 through the wire hole 120. Of course, in other embodiments, the circuit board 360 may also be configured as a rectangle or an irregular shape, etc., which is not limited here.

[0066] Hall switch 361 is located on the side of circuit board 360 facing turntable 310 and near the end of circuit board 360. Hall switch 361 is located along the axis of connecting rod 330. Hall switch 361 can sense the strength of magnetic field. When the magnetic component is opposite to Hall switch 361, the magnetic field strength sensed by Hall switch 361 is the strongest. At this time, Hall switch 361 will output a level signal to circuit board 360. After receiving the level signal, circuit board 360 controls the power component 350 to stop running.

[0067] Please see Figures 1 to 3 In one embodiment, a Hall switch 361 is provided at each of the opposite ends of the circuit board 360. The two Hall switches 361 are spaced apart along the axial direction of the connecting rod 330, and the turntable 310 drives the magnetic component to move between the two Hall switches 361.

[0068] Since the extension direction of the elongated hole 331 is perpendicular to the axial direction of the connecting rod 330, and in the initial state, the push shaft 320 is located at the end of the elongated hole 331, and the center of the elongated hole 331 coincides with that of the turntable 310, when the push shaft 320 moves along the wall of the elongated hole 331 in the first or second direction to the axial direction of the connecting rod 330, the moving distance of the connecting rod 330 relative to the fixed frame 100 is at its maximum, that is, the mounting plate 20 is at its maximum adjustable angle; at this time, the magnetic component is opposite to one of the Hall switches 361.

[0069] The power unit 350 drives the turntable 310 to move the push shaft 320 and the magnetic component between two Hall switches 361. The two Hall switches 361 cooperate with the magnetic component to control the power unit 350, so that when the mounting plate 20 tilts forward or backward to its maximum angle, the power unit 350 can stop driving the connecting rod 330 in time. When the turntable 310 drives the push shaft 320 and the magnetic component to rotate in the first direction, and the magnetic component is opposite to a Hall switch 361 further away from the mounting plate 20, it indicates that the mounting plate 20 has tilted backward to its maximum angle. The Hall switch 361 outputs a level signal to the circuit board 360 to control the power unit 350 to stop operating. When the turntable 310 drives the push shaft 320 and the magnetic component to rotate in the second direction, and the magnetic component is opposite to a Hall switch 361 closer to the mounting plate 20, it indicates that the mounting plate 20 has tilted forward to its maximum angle. The Hall switch 361 outputs a level signal to the circuit board 360 to control the power unit 350 to stop operating. Specifically, in one embodiment, the travel range of the power component 350 driving the turntable 310 to rotate in the first or second direction is one-quarter or one-half of the circumference of the turntable 310 each time, so that the mounting plate 20 can be adjusted from the initial state to the maximum angle of forward tilt or backward tilt, or the mounting plate 20 can be changed from the maximum angle of forward tilt to the maximum angle of backward tilt. Of course, in other embodiments, the travel range can be flexibly set according to actual needs, and there is no limitation here.

[0070] The technical solution of this utility model embodiment, by setting a Hall switch 361 and a magnetic component in the drive unit, enables the power component 350 to stop running in time when the mounting plate 20 is adjusted to the maximum angle, thereby realizing intelligent angle adjustment and further improving the reliability of the angle adjustment component 10.

[0071] Please see Figures 1 to 3 In one embodiment, the drive unit further includes a fixing block 370 disposed on the mounting side 110. The fixing block 370 has a through hole, through which the connecting rod 330 movably passes. In one embodiment, the fixing block 370 includes two limiting parts, one side of which is fixed to the fixing frame 100, and the other side is detachably connected to the other limiting part. Both limiting parts have arc-shaped grooves on their adjacent sides, and the two arc-shaped grooves together form the through hole. In another embodiment, a through hole is directly provided at the center of the fixing block 370. The through hole is coaxial with the connecting rod 330, and the inner diameter of the through hole is slightly larger than the outer diameter of the connecting rod 330 to ensure that the connecting rod 330 can slide relative to the through hole.

[0072] The technical solution of this utility model embodiment, by setting a fixing block 370 in the driving unit, ensures that the connecting rod 330 slides along the fixing frame 100 while restricting the connecting rod 330 to the fixing frame 100, so as to constrain the connecting rod 330 to always perform linear reciprocating motion relative to the fixing frame 100, thereby ensuring installation reliability.

[0073] Please see Figure 3 In one embodiment, the drive unit further includes a ball head 340, which is located at one end of the connecting rod 330 facing the mounting plate 20, and the ball head 340 is rotatably connected to the mounting plate 20.

[0074] Specifically, in one embodiment, the drive unit further includes a mounting base 380 disposed on the mounting plate 20. Two mounting bases 380 are symmetrically arranged with respect to the axis of the connecting rod 330. The two mounting bases 380 are detachably connected. Each mounting base 380 has a hemispherical concave surface on its adjacent side. The hemispherical concave surfaces of the two mounting bases 380 together form a spherical groove. The ball head 340 is mostly movably disposed in the spherical groove. The spherical groove and the ball head 340 are concentrically arranged. The diameter of the groove opening is smaller than the outer diameter of the ball head 340. That is, the center of the ball head 340 is located in the spherical groove. Since the diameter of the groove opening is smaller than the outer diameter of the ball head 340, the ball head 340 can be confined within the spherical groove. Further, in one embodiment, the end of the ball head 340 facing the mounting plate 20 is cut with a vertical surface to reduce the contact area between the ball head 340 and the spherical groove, thereby reducing the frictional resistance when the mounting plate 20 rotates relative to the ball head 340. Of course, in other embodiments, the side of the extension rod facing the mounting plate 20 may also be rotatably connected to the mounting plate 20 via a pivot or the like, and this is not a limitation.

[0075] The technical solution of this utility model embodiment achieves a rotatable connection between the extension rod and the mounting plate 20 by setting the ball head 340, and also achieves spherical contact between the extension rod and the mounting plate 20, making the rotation of the mounting plate 20 relative to the extension rod more flexible and improving operational flexibility.

[0076] This utility model also proposes a display stand arm, including a mounting plate 20 and an angle adjustment component 10 as described in the above embodiments. The specific structure of the angle adjustment component 10 is as described in the above embodiments. Since this angle adjustment component 10 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here.

[0077] In one embodiment, the mounting plate 20 is provided with connection holes for connection to the display using fasteners such as screws or rivets. The display and the angle adjustment assembly 10 are located on opposite sides of the mounting plate 20. Of course, in other embodiments, the mounting plate 20 and the display can also be connected by snap-fit ​​or magnetic attraction, etc., and this is not limited here.

[0078] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. An angle adjustment assembly for adjusting the angle of a mounting plate, characterized by, include: A fixing frame is located on one side of the mounting plate, and the fixing frame has a front facing the mounting plate; A connecting bracket is fixed to the fixed frame and rotates with the mounting plate; as well as The drive unit includes a fixed frame with an installation side adjacent to the front side. The installation side is equipped with the drive unit, which includes a turntable, a push shaft, a connecting rod, and a power component. One end of the connecting rod has an elongated hole and is slidably connected to the fixed frame. The other end of the connecting rod is rotatably connected to the mounting plate. The turntable is rotatably mounted on the fixed frame. The power component is mounted on the fixed frame and is driven by the turntable. The push shaft is mounted on the turntable and is eccentrically positioned to the center of the turntable. The end of the push shaft away from the turntable is slidably mounted in the elongated hole and drives the connecting rod to slide, causing the mounting plate to rotate relative to the connecting bracket.

2. The angular adjustment assembly of claim 1, wherein, Two connecting brackets are provided, located at opposite ends of the front side, and the two connecting brackets and the drive unit are arranged in a triangular support layout.

3. The angular adjustment assembly of claim 2, wherein, Each of the aforementioned connecting brackets includes: The first bracket, one end of which is fixed to the front; and The second bracket has one end fixed to the mounting plate, and the other end of the second bracket is rotatably connected to the other end of the first bracket.

4. The angle adjustment component as described in claim 3, characterized in that, Each of the aforementioned connecting brackets further includes: The connecting shaft has through holes at the ends of both the first and second brackets that are close to each other, and the connecting shaft movably passes through both through holes; and The connecting shaft is provided with a limiting member at each of its opposite ends. The two limiting members abut against the opposite sides of the first bracket and the second bracket to restrict the connecting shaft at the through hole.

5. The angle adjustment component as described in claim 3, characterized in that, One of the first bracket and the second bracket is provided with an annular protrusion, and the other of the first bracket and the second bracket is provided with an annular groove. The annular protrusion can be embedded in the annular groove and rotate along the groove wall of the annular groove.

6. The angle adjustment component as described in claim 1, characterized in that, The drive unit further includes: A circuit board is disposed on the fixed frame and located on the side of the turntable opposite to the elongated hole; the circuit board is electrically connected to the power component. A Hall effect switch is located on the side of the circuit board facing the turntable and is electrically connected to the circuit board; and A magnetic component is disposed on the side of the turntable facing the circuit board and opposite to the push shaft. When the turntable drives the magnetic component to rotate to be opposite the Hall switch, the circuit board controls the power component to stop running.

7. The angle adjustment component as described in claim 6, characterized in that, A Hall switch is provided at each of the opposite ends of the circuit board. The two Hall switches are spaced apart along the axial direction of the connecting rod. The turntable drives the magnetic component to move between the two Hall switches.

8. The angle adjustment component as described in claim 1, characterized in that, The drive unit further includes: A fixing block is provided on the mounting side, and the fixing block has a through hole, through which the connecting rod is movably inserted.

9. The angle adjustment component as described in claim 1, characterized in that, The drive unit further includes: A ball head is located at one end of the connecting rod facing the mounting plate, and the ball head is rotatably connected to the mounting plate.

10. A monitor stand arm, characterized in that, It includes a mounting plate and an angle adjustment assembly as described in any one of claims 1 to 9.

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