Display support

Abstract

The displayer support comprises a supporting assembly, an adjusting support body and a limiting assembly, the adjusting support body comprises an upper supporting arm, a lower supporting arm, a rotating base and a connecting base, one end of the upper supporting arm and one end of the lower supporting arm are rotationally connected with the rotating base, and the other end of the upper supporting arm and the other end of the lower supporting arm are rotationally connected with the connecting base; the upper supporting arm, the lower supporting arm, the rotating seat and the connecting seat jointly form a parallel four-connecting-rod structure; the limiting assembly comprises a limiting piece arranged on the adjusting frame body or the supporting assembly, and when the adjusting frame body rotates downwards to the lowest stroke position, the limiting piece can limit movement of the parallel four-connecting-rod structure, so that the connecting base is limited, and therefore the bottom of a displayer on the displayer hanging frame does not make contact with the top face of the table board. The displayer support can effectively prevent the bottom of a displayer from colliding with a table top.

Description

Technical Field

[0001] This application relates to the field of display mounting technology, specifically to a display bracket. Background Technology

[0002] A monitor stand is a stand specifically designed for computer monitors and flat-screen TVs. It is typically mounted on a desktop, tabletop, or wall. The monitor or flat-screen TV can be adjusted for horizontal and vertical angles relative to its support via the monitor stand, allowing the user to choose the optimal viewing angle.

[0003] Taking a desktop computer monitor stand as an example, its structure includes a stand body, one end of which is connected to a fixed base fixed to the desktop, and the other end is connected to a connecting base connected to the monitor. The stand body includes a rotating arm rotatably connected to the fixed base and an adjusting frame rotatably connected to the rotating arm. The connecting base is rotatably connected to the adjusting frame, wherein the adjusting frame can achieve angle adjustment in the height direction. As disclosed in the monitor stand of the applicant in the prior Chinese patent applications with publication numbers CN209977669U and CN210165147U, its adjusting frame includes an upper arm, a lower arm, a rotating base, and a connecting base. The first ends of the upper arm and the lower arm are respectively hinged to the rotating base, and the second ends of the upper arm and the lower arm are respectively hinged to the connecting base. The upper arm, the lower arm, the rotating base, and the connecting base form a parallel four-bar structure. Therefore, when adjusting the vertical height of the monitor, the upper arm and the lower arm rotate relative to the rotating base or the connecting base, so that the monitor can only be raised and lowered in the vertical direction without displacement in the front and back direction, thereby keeping the horizontal distance between the monitor and the user constant.

[0004] The monitor stands mentioned above have the following drawbacks in actual use: the height adjustment of the parallel four-bar structure consisting of the upper arm, lower arm, rotating base, and connecting base of the adjustable stand has a large range of motion, while the height of the support components of the adjustable stand is limited. When adjusting the height of the monitor downwards, there is a risk of collision with the desktop, which may cause damage to the bottom of the monitor. Summary of the Invention

[0005] The technical problem to be solved by this application is to overcome the defects of the above-mentioned related technologies and provide a monitor stand that can effectively prevent the bottom of the monitor from colliding with the desktop.

[0006] The technical solution of this application is to provide a monitor bracket having the following structure: including... Support components that are attached to or placed on a tabletop; The adjustable frame includes an upper support arm, a lower support arm, a rotating seat connected to the support assembly, and a connecting seat connected to the monitor bracket. One end of the upper support arm and the lower support arm are rotatably connected to the rotating seat, and the other end is rotatably connected to the connecting seat. The upper support arm, the lower support arm, the rotating seat, and the connecting seat together form a parallel four-bar structure. The limiting component includes a limiting member disposed on the adjusting frame or the supporting component. When the adjusting frame is rotated downward to the lowest travel position, the limiting member can restrict the movement of the parallel four-bar structure, thereby limiting the connecting seat and preventing the bottom of the monitor on the monitor mount from contacting the top surface of the table.

[0007] In some embodiments, a limiting pin is connected to one end of the lower support arm near the connecting seat. The limiting pin forms the limiting member. When the adjusting frame rotates downward to the lowest stroke position, the connecting seat abuts against the limiting pin to limit the movement of the parallel four-bar linkage structure.

[0008] In some embodiments, the lower support arm has at least one insertion hole at one end near the connecting seat, and the limiting pin is movably inserted into the insertion hole.

[0009] In some embodiments, there are two insertion holes at different heights on the lower support arm, and the axis of the insertion hole is parallel to the rotation axis of the lower support arm and the connecting seat.

[0010] In some embodiments, the limiting pin is positioned closer to the rotating seat relative to the rotation axis between the lower support arm and the connecting seat.

[0011] In some embodiments, a limiting rod is connected to the connecting seat, the limiting rod forms the limiting member, and the free end of the limiting rod extends to form a limiting end between the upper support arm and the lower support arm. When the adjusting frame rotates downward to the lowest stroke position, the limiting rod rotates with the connecting seat until the limiting end abuts against the lower support arm or the abutment on the lower support arm to limit the movement of the parallel four-bar linkage structure.

[0012] In some embodiments, the connecting seat is provided with a connecting hole that is inclined toward the upper support arm, the limiting rod is threaded into the connecting hole, and the outer end of the limiting rod is provided with a knob.

[0013] In some embodiments, a support rod is rotatably connected to one end of the lower support arm or the upper support arm near the support assembly. The support assembly has a sliding hole along the height direction, and a sliding rod is slidably connected in the sliding hole. The support rod is rotatably connected to the sliding rod. When the adjusting frame rotates downward to the lowest stroke position, the sliding rod abuts against the lower end of the sliding hole to limit the movement of the parallel four-bar linkage structure.

[0014] In some embodiments, there are two support rods, and the upper ends of the two support rods are rotatably connected to the end of the lower support arm near the support assembly, and the lower ends of the two support rods are rotatably connected to the sliding rod.

[0015] In some embodiments, the support assembly includes a clamping seat fixedly connected to the tabletop and a rotating arm rotatably connected to the clamping seat. The rotating seat is rotatably connected to one end of the rotating arm away from the clamping seat, and the sliding hole is provided at the end of the rotating arm away from the clamping seat.

[0016] In some embodiments, a gas spring is also included, which is connected to the adjusting frame body to counteract or partially counteract the load on the adjusting frame body, so that the adjusting frame body remains at any height position.

[0017] In some embodiments, the rotating seat is provided with a groove along the height direction, a first support seat is slidably connected in the groove, an adjusting screw arranged along the height direction is rotatably connected to the rotating seat, and the adjusting screw is threadedly connected to the first support seat; a second support seat is fixedly connected to the upper support arm, one end of the gas spring is hinged to the first support seat and the other end is hinged to the second support seat.

[0018] In summary, compared with related technologies, the monitor stand of this application has the following advantages: The monitor stand is equipped with a limiting member on the adjusting frame or support assembly. This limiting member restricts the movement of the parallel four-bar structure when the adjusting frame is rotated downwards to its lowest travel position, preventing further downward rotation of the adjusting frame and keeping the distance between the connecting seat and the rotating seat fixed. This avoids collision between the bottom of the monitor and the top surface of the desktop. Therefore, when adjusting the monitor height downwards, this monitor stand effectively prevents the bottom of the monitor from colliding with the desktop. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of a monitor bracket according to an embodiment of this application.

[0020] Figure 2 This is a side view of a monitor bracket according to an embodiment of the present application.

[0021] Figure 3 This is a cross-sectional structural schematic diagram of a monitor bracket according to an embodiment of this application.

[0022] Figure 4 This is a schematic diagram of another angle of a display bracket embodiment according to this application.

[0023] Figure 5 This is a schematic diagram of the assembly structure of a monitor bracket according to an embodiment of this application.

[0024] Figure 6 This is a structural schematic diagram of a second embodiment of a monitor bracket according to this application.

[0025] Figure 7 This is a cross-sectional structural schematic diagram of a second embodiment of a display bracket according to this application.

[0026] Figure 8 This is a structural schematic diagram of a third embodiment of a monitor bracket according to this application.

[0027] Figure 9 This is a side view of a third embodiment of a monitor bracket according to this application.

[0028] Explanation of reference numerals in the attached figures: 1. Tabletop; 2. Support assembly; 200. Clamping seat; 201. Rotating arm; 202. Sliding hole; 3. Adjustable frame; 300. Upper support arm; 301. Lower support arm; 302. Rotating seat; 303. Connecting seat; 304. Insertion hole; 305. First shaft; 306. Second shaft; 307. Third shaft; 308. Fourth shaft; 309. Slide groove; 310. First support seat; 311. Adjusting screw; 312. Second support seat; 4. Monitor bracket; 5. Monitor; 6. Limit pin; 600. Limit rod; 601. Limit end; 602. Knob; 603. Support rod; 604. Sliding rod; 7. Gas spring. Detailed Implementation

[0029] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0030] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0031] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0033] Example 1: See Figures 1-5 As shown in the illustration, this application discloses a monitor stand, which is installed on a tabletop 1 and used to mount a computer monitor 5. The monitor stand includes a support component 2, an adjustable frame 3, and a monitor mount 4. The support component 2 can be fixedly connected to or placed on the tabletop 1 and is located on the side of the tabletop 1 away from the user. The adjustable frame 3 is rotatably connected to the support component 2, and the monitor mount 4 is installed on the end of the adjustable frame 3 away from the support component 2. The monitor mount 4 can be used to mount the monitor 5. The adjustable frame 3 can swing left and right in the horizontal direction relative to the support component 2 to adjust its horizontal position. The adjustable frame 3 can be adjusted in height or tilt angle relative to the support component 2. The monitor mount 4 can be rotated relative to the adjustable frame 3 to adjust its angle. Therefore, this monitor stand allows the monitor to be adjusted in the horizontal, vertical, and front-back directions to meet the user's viewing needs.

[0034] Furthermore, in this embodiment, the support assembly 2 includes a clamping seat 200 fixedly connected to the tabletop 1 and a rotating arm 201 rotatably connected to the clamping seat 200, as detailed below. Figure 1 and Figure 2As shown, the clamping base 200 includes a base, a support plate connected to the base and extending downward, and a clamping screw threaded onto the support plate. The base is placed on top of the tabletop 1, and a clamping part for clamping the tabletop 1 is formed between the base and the clamping screw. Rotating the clamping screw can clamp the clamping part onto the tabletop 1, thereby fixing the support assembly 2 onto the tabletop 1. The top of the base of the support assembly 2 is provided with a vertically upward support shaft. One end of the rotating arm 201 is rotatably connected to the upper end of the support shaft, and the other end of the rotating arm 201 is rotatably connected to the adjusting frame 3. The rotating arm 201 is horizontally positioned.

[0035] In some embodiments, the support component 2 may also be a column, and the lower end of the column is fixedly connected to a clamping seat 200 fixedly connected to the table 1, and the adjusting frame 3 is rotatably connected to the column. That is, in this embodiment, the rotating arm 201 can be removed from the support component 2.

[0036] In other embodiments, the support component 2 may also remove the clamping seat 200 and replace it with a support placed on the top of the table 1. That is, the support component 2 can be placed on the table 1, and a rotating arm 201 is rotatably connected to the support. The free end of the rotating arm 201 is rotatably connected to the adjustment frame 3.

[0037] Further in this embodiment, the adjustment frame 3 includes an upper support arm 300, a lower support arm 301, a rotating seat 302 rotatably connected to the rotating arm 201 of the support assembly 2, and a connecting seat 303 connected to the monitor bracket 4. One end of the upper support arm 300 and the lower support arm 301 are rotatably connected to the rotating seat 302, and the other end is rotatably connected to the connecting seat 303. The upper support arm 300, the lower support arm 301, the rotating seat 302, and the connecting seat 303 together form a parallel four-bar structure. When the height and distance of the connecting seat 303 relative to the rotating seat 302 are adjusted, the upper support arm 300 and the lower support arm 301 rotate relative to the rotating seat 302 and the connecting seat 303. Since the upper support arm 300, the lower support arm 301, the rotating seat 302, and the connecting seat 303 together form a parallel four-bar structure, when adjusting the height of the monitor bracket 4 on the connecting seat 303, the monitor 5 on the monitor bracket 4 can always remain in a vertical state.

[0038] For example, see Figure 3 , Figure 4 and Figure 5As shown, the adjusting frame 3 includes an upper support arm 300 and a lower support arm 301 formed by bending sheet metal. The upper support arm 300 is located above the lower support arm 301, and the cross-sections of both the upper support arm 300 and the lower support arm 301 are U-shaped. The openings of the upper support arm 300 and the lower support arm 301 are arranged opposite each other to form a space between them. The rotating seat 302 is rotatably connected to the free end of the rotating arm 201 via a rotating shaft at its bottom. The rotating seat 302 is rotatably connected from top to bottom to a first shaft 305 and a second shaft 306. The connecting seat 303 is rotatably connected from top to bottom to a third shaft 307 and a fourth shaft 308. The distance between the first axis 305 and the second axis 306 is equal to the distance between the third axis 307 and the fourth axis 308. The first ends of the upper support arm 300 and the lower support arm 301 are rotatably connected to the first axis 305 and the second axis 306, respectively, and the second ends of the upper support arm 300 and the lower support arm 301 are rotatably connected to the third axis 307 and the fourth axis 308, respectively. The distance between the first axis 305 and the third axis 307 is equal to the distance between the second axis 306 and the fourth axis 308. Therefore, the upper support arm 300, the lower support arm 301, the rotating base 302, and the connecting base 303 together form a parallelogram rotating structure, also known as a parallel four-bar structure. When adjusting the vertical height of the monitor, the upper support arm 300 and the lower support arm 301 rotate relative to the rotating base 302 or the connecting base 303, allowing the monitor to rise and fall only in the vertical direction without displacement in the front-back direction, thus maintaining a constant horizontal distance between the monitor and the user.

[0039] It is understandable that the parallelogram rotating structure, composed of the upper support arm 300, lower support arm 301, rotating seat 302, and connecting seat 303, has a large adjustment stroke during height adjustment. However, the height of the support component 2 or rotating arm 201 is limited. When adjusting the monitor height downwards, the bottom of the monitor is prone to colliding with the desktop, causing damage to the bottom of the monitor. Therefore, in this embodiment, the monitor bracket also includes a limiting component, which includes a limiting member disposed on the adjusting frame 3 or support component 2. When the adjusting frame 3 rotates downwards to the lowest stroke position, the limiting member can restrict the movement of the parallelogram structure, thereby limiting the connecting seat 303 and preventing the bottom of the monitor on the monitor bracket 4 from contacting the top surface of the desktop 1. In this embodiment, the monitor bracket has a limiting member on the adjusting frame 3 or the support assembly 2. This limiting member restricts the movement of the parallel four-bar linkage when the adjusting frame 3 rotates downwards to its lowest travel position, preventing further downward rotation and keeping the distance between the connecting seat 303 and the rotating seat 302 fixed. This prevents the bottom of the monitor on the monitor holder 4 from colliding with the top surface of the tabletop 1. Therefore, when adjusting the height of the monitor 5 downwards, the monitor bracket effectively prevents the bottom of the monitor 5 from colliding with the desktop.

[0040] It is easy to understand that the setting of this limiting component ensures that the distance between the bottom of the monitor and the tabletop 1 remains at a safe gap when the adjusting frame 3 is rotated downwards, thus preventing the bottom of the monitor from colliding with the tabletop 1. For example, this safe gap can be set between 20 and 50 millimeters, which can both prevent the bottom of the monitor from colliding with the tabletop 1 and prevent fingers from being pinched. In this embodiment, the limiting element of this limiting component is set as a limiting pin 6. Specifically, see [link to documentation]. Figure 3 , Figure 4 and Figure 5 As shown, the limiting pin 6 is connected to the end of the lower support arm 301 near the connecting seat 303. When the adjusting frame 3 rotates downward to the lowest stroke position, the connecting seat 303 abuts against the limiting pin 6 to limit the movement of the parallel four-bar linkage. When the connecting seat 303 at the outer end of the adjusting frame 3 adjusts its height downward relative to the rotating seat 302, the upper support arm 300 and the lower support arm 301 rotate downward relative to the rotating seat 302. At the same time, the rotation angle between the lower support arm 301 and the connecting seat 303 gradually decreases until the adjusting frame 3 rotates downward to the lowest stroke position. At this point, the connecting seat 303 abuts against the limiting pin 6 on the lower support arm 301 to limit the movement, thereby preventing the adjusting frame 3 from rotating further downward and fixing the distance between the connecting seat 303 and the rotating seat 302. In other words, the minimum travel position of the adjustable bracket 3 when rotating downward can be set according to the safety gap between the bottom of the monitor and the top of the desktop. Then, the position of the limit pin 6 on the lower support arm 301 is set according to the rotation angle between the lower support arm 301 and the connecting seat 303 at the minimum travel position. When the adjustable bracket 3 rotates downward to the limit position, the connecting seat 303 and the limit pin 6 are exactly abutted, thereby preventing the adjustable bracket 3 from rotating downward further, thus preventing the bottom of the monitor on the monitor bracket 4 from colliding with the top surface of the desktop 1.

[0041] When adjusting the frame 3 to the lowest stroke position of downward rotation, in order to facilitate the connection seat 303 to abut against the limit pin 6, the limit pin 6 is set at a position closer to the rotating seat 302 relative to the rotation axis between the lower support arm 301 and the connection seat 303.

[0042] Furthermore, in this embodiment, due to the different sizes of the monitors, the distance between the bottom of the monitor and the top of the desktop varies when the adjustment bracket 3 is rotated downwards to its lowest travel position. Therefore, in this embodiment, the lower support arm 301 is provided with at least one insertion hole 304 near the connecting base 303, and the limiting pin 6 is movably inserted into the insertion hole 304. For details in this embodiment, see [link to relevant documentation]. Figure 3 and Figure 4As shown, there are two sockets 304, and the two sockets 304 are at different heights on the lower support arm 301. The axis of the socket 304 is parallel to the rotation axis of the lower support arm 301 and the connecting seat 303. Therefore, depending on the size of the monitor, the limiting pin 6 can be inserted into the sockets 304 at different heights, so that when the adjustment frame 3 is rotated downward to the lowest travel position, the distance between the bottom of the monitor 5 and the top of the desktop is kept within a safe clearance range to avoid collision with the top surface of the tabletop 1.

[0043] In some embodiments, the limiting pin 6 can also be configured as a protrusion integrally formed with the lower support arm 301, that is, a protrusion protruding downward from the center line of the lower support arm 301 is provided on the inner wall of the end of the lower support arm 301 near the connecting seat 303. When the adjusting frame 3 rotates downward to the lowest stroke position, the connecting seat 303 abuts against the protrusion to limit the movement. Alternatively, the limiting pin 6 can also be configured as a limiting plate or the like connected to the inner wall of the end of the lower support arm 301 near the connecting seat 303. The limiting member is not limited to a specific shape. Any structure such as a pin, shaft, protrusion, plate, or step connected to the lower support arm 301 can abut against the connecting seat 303 when the adjusting frame 3 rotates downward to the lowest stroke position, so as to limit the movement of the parallel four-bar structure and prevent the adjusting frame 3 from continuing to rotate downward.

[0044] Furthermore, in this embodiment, the display bracket also includes a gas spring 7, which is a constant-force elastic component used to provide a stable output force. In this embodiment, the gas spring 7 is connected inside the adjustment frame 3 to offset or partially offset the load-bearing capacity of the adjustment frame 3, so that the adjustment frame 3 stays at any height position.

[0045] For example, see Figure 3 and Figure 5As shown, the rotating base 302 has a sliding groove 309 along the height direction. A first support base 310 is slidably connected within the sliding groove 309. An adjusting screw 311, arranged along the height direction, is rotatably connected to the rotating base 302. The adjusting screw 311 is threadedly connected to the first support base 310. Rotating the adjusting screw 311 allows the first support base 310 to slide along the height direction of the sliding groove 309 to adjust its position. A second support base 312 is fixedly connected to the inner top wall of the upper support arm 300. A gas spring 7 is arranged along the length direction of the adjusting frame 3 in the space between the upper support arm 300 and the lower support arm 301, with one end of the gas spring 7 hinged to the first support base 310 and the other end hinged to the second support base 312. When the height of the adjusting frame 3 is adjusted, the gas spring 7 can expand or contract accordingly. The supporting force it provides allows the adjusting frame 3 to remain stationary after height adjustment, thus allowing the adjusting frame 3 to stay at any height position. In addition, the user can adjust the height of the first support base 310 by adjusting the screw 311, thereby adjusting the tilt angle between the gas spring 7 and the adjustment frame 3, and thus adjusting the vertical component of the force applied by the gas spring 7 to the upper support arm 300, so that the force provided by the gas spring 7 can more stably support the load-bearing capacity of the adjustment frame 3.

[0046] Example 2: See Figures 6-7 As shown, this application discloses a monitor bracket. The difference between this embodiment and the first embodiment is the structure of the limiting component. Specifically, in this embodiment, the limiting member of the limiting component is a limiting rod 600 connected to the connecting seat 303. The free end of the limiting rod 600 extends to form a limiting end 601 between the upper support arm 300 and the lower support arm 301. When the adjusting frame 3 rotates downward to the lowest stroke position, the limiting rod 600 rotates with the connecting seat 303 until the limiting end 601 abuts against the lower support arm 301 or the abutment on the lower support arm 301 to limit the movement of the parallel four-bar linkage structure.

[0047] In this embodiment, the connecting seat 303 has a connecting hole that is inclined upward and faces the upper support arm 300. The connecting hole has an internal thread. The limiting rod 600 is essentially a threaded rod, which is threaded into the connecting hole. The outer end of the limiting rod 600 has a knob 602, and the inner end of the limiting rod 600 extends to form a limiting end 601 between the upper support arm 300 and the lower support arm 301. When the height of the adjusting frame 3 is adjusted downward, the limiting rod 600 rotates synchronously with the connecting seat 303. When the adjusting frame 3 rotates downward to the lowest stroke position, the limiting end 601 of the limiting rod 600 abuts against the inner wall of the upper support arm 300 or the abutment part on the inner wall of the upper support arm 300, thereby limiting the movement of the parallel four-bar linkage structure, preventing the adjusting frame 3 from rotating further downward, and preventing the bottom of the display 5 from colliding with the top surface of the tabletop 1.

[0048] In this embodiment, the second support base 312 connected to the gas spring 7 forms a stop where the limiting end 601 of the limiting rod 600 abuts against it. That is, when the adjusting frame 3 rotates downward to the lowest stroke position, the limiting end 601 of the limiting rod 600 abuts against the second support base 312 for limitation. This avoids direct contact with the inner wall of the upper support arm 300, thus preventing the upper support arm 300 from being crushed and damaged.

[0049] In some embodiments, the abutment may also be formed by a protrusion integrally formed with the upper support arm 300.

[0050] Understandably, users can adjust the length of the limit end 601 by rotating the knob 602 of the limit lever 600, thereby adjusting the lowest travel position of the adjustment frame 3 so that the distance between the bottom of monitors of different sizes and the top of the desktop can be kept within a safe clearance range to avoid collision with the desktop.

[0051] The other technical solutions in this embodiment are the same as those in Embodiment 1 above, so they will not be described again.

[0052] Example 3: See Figures 8-9 As shown, this application discloses a monitor bracket. The difference between this embodiment and the first embodiment mentioned above lies in the structure of the limiting component. Specifically, in this embodiment, the limiting component is a support rod 603. The support rod 603 is rotatably connected to one end of the lower support arm 301 near the support component 2. The support component 2 has a sliding hole 202 along the height direction. A sliding rod 604 is slidably connected in the sliding hole 202. The support rod 603 and the sliding rod 604 are rotatably connected. When the adjustable frame 3 rotates downward to the lowest stroke position, the sliding rod 604 abuts against the lower end of the sliding hole 202 to limit the lower support arm 301 from continuing to rotate downward, thereby restricting the movement of the parallel four-bar linkage structure. In this embodiment, when the height of the adjustable frame 3 is adjusted, the lower support arm 301 drives the support rod 603 to move synchronously, so that the sliding rod 604 on the support rod 603 slides in the sliding hole 202 of the support component 2. When the lower support arm 301 drives the support rod 603 to slide down until the sliding rod 604 abuts against the lower end of the sliding hole 202, the downward rotation of the lower support arm 301 is restricted, thereby restricting the movement of the parallel four-bar linkage structure. The distance between the connecting seat 303 and the rotating seat 302 remains fixed, thereby preventing the adjustable frame 3 from rotating further down and preventing the bottom of the monitor from colliding with the top surface of the tabletop 1.

[0053] It is understood that in this embodiment, the height of the lower end of the sliding hole 202 and the length of the support rod 603 determine the lowest stroke position of the adjustment frame 3, so that the height of the lower end of the sliding hole 202 and the length of the support rod 603 can be set as needed to adapt to displays of different sizes.

[0054] In this embodiment, see Figure 8 As shown, there are two support rods 603, and the upper ends of the two support rods 603 are rotatably connected to the end of the lower support arm 301 near the support assembly 2, and the lower ends of the two support rods 603 are rotatably connected to the sliding rod 604. The support of the two support rods 603 on the lower support arm 301 makes the support stability of the adjusting frame 3 better when it is at its lowest stroke position.

[0055] In some embodiments, the upper end of the support rod 603 can also be rotatably connected to the end of the upper support arm 300 near the rotating seat 302. When the adjustment frame 3 rotates downward to the lowest stroke position, the support rod 603 supports the upper support arm 300, which also serves to limit the adjustment frame 3 from continuing to rotate downward, thus preventing a collision between the bottom of the monitor and the top surface of the tabletop 1 when the gap is less than the safety gap.

[0056] The other technical solutions in this embodiment are the same as those in Embodiment 1 above, so they will not be described again.

[0057] In the description of the embodiments of this application, it should be noted that the terms "inner" and "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0058] In the description of this application, the references to terms such as "an embodiment," "some embodiments," "in this embodiment," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0059] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A monitor stand, characterized in that: include Support components that are attached to or placed on a tabletop; The adjustable frame includes an upper support arm, a lower support arm, a rotating seat connected to the support assembly, and a connecting seat connected to the monitor bracket. One end of the upper support arm and the lower support arm are rotatably connected to the rotating seat, and the other end is rotatably connected to the connecting seat. The upper support arm, the lower support arm, the rotating seat, and the connecting seat together form a parallel four-bar structure. The limiting component includes a limiting member disposed on the adjusting frame or the supporting component. When the adjusting frame is rotated downward to the lowest travel position, the limiting member can restrict the movement of the parallel four-bar structure, thereby limiting the connecting seat and preventing the bottom of the monitor on the monitor mount from contacting the top surface of the table.

2. The monitor stand according to claim 1, characterized in that: The lower support arm is connected to a limit pin at one end near the connecting seat. The limit pin forms the limiting element. When the adjusting frame rotates downward to the lowest stroke position, the connecting seat and the limit pin abut against each other to limit the movement of the parallel four-bar linkage structure.

3. The monitor stand according to claim 2, characterized in that: The lower support arm has at least one insertion hole at one end near the connecting seat, and the limiting pin is movably inserted into the insertion hole.

4. The monitor stand according to claim 3, characterized in that: There are two insertion holes, which are at different heights on the lower support arm, and the axis of each insertion hole is parallel to the rotation axis of the lower support arm and the connecting seat.

5. The monitor stand according to claim 3, characterized in that: The limiting pin is positioned closer to the rotating seat relative to the rotation axis between the lower support arm and the connecting seat.

6. The monitor stand according to claim 1, characterized in that: A limiting rod is connected to the connecting seat, the limiting rod forms the limiting member, and the free end of the limiting rod extends to the space between the upper support arm and the lower support arm to form a limiting end. When the adjusting frame rotates downward to the lowest stroke position, the limiting rod rotates with the connecting seat until the limiting end abuts against the lower support arm or the abutment on the lower support arm to limit the movement of the parallel four-bar linkage structure.

7. The monitor stand according to claim 6, characterized in that: The connecting seat is provided with a connecting hole that is inclined toward the upper support arm, the limiting rod is threaded into the connecting hole, and the outer end of the limiting rod is provided with a knob.

8. The monitor stand according to claim 1, characterized in that: A support rod is rotatably connected to one end of the lower support arm or the upper support arm near the support assembly. The support assembly has a sliding hole along the height direction, and a sliding rod is slidably connected in the sliding hole. The support rod is rotatably connected to the sliding rod. When the adjusting frame rotates downward to the lowest stroke position, the sliding rod abuts against the lower end of the sliding hole to limit the movement of the parallel four-bar linkage structure.

9. The monitor stand according to claim 8, characterized in that: There are two support rods, and the upper ends of the two support rods are rotatably connected to the end of the lower support arm near the support assembly, and the lower ends of the two support rods are rotatably connected to the sliding rod.

10. The monitor stand according to claim 1, characterized in that: The support assembly includes a clamping seat fixedly connected to the tabletop and a rotating arm rotatably connected to the clamping seat. The rotating seat is rotatably connected to the end of the rotating arm away from the clamping seat, and the sliding hole is provided at the end of the rotating arm away from the clamping seat.

11. The monitor stand according to any one of claims 1 to 10, characterized in that: It also includes a gas spring connected to the adjusting frame body to counteract or partially counteract the load on the adjusting frame body, so that the adjusting frame body stays at any height position.

12. The monitor stand according to claim 11, characterized in that: The rotating base is provided with a sliding groove along the height direction, and a first support base is slidably connected in the sliding groove. An adjusting screw is rotatably connected to the rotating base along the height direction, and the adjusting screw is threadedly connected to the first support base. A second support base is fixedly connected to the upper support arm, and one end of the gas spring is hinged to the first support base and the other end is hinged to the second support base.

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