Heavy display support

Abstract

The utility model belongs to the technical field of displayer supports, and particularly discloses a heavy displayer support which comprises a fixing base, a supporting arm and a connecting assembly which are sequentially connected, the supporting arm comprises a first arm, a second arm, a first connecting block and a second connecting block, and the first arm and the second arm are arranged in parallel up and down. One end of the first arm and one end of the second arm are rotationally connected with the first connecting block, the other end of the first arm and the other end of the second arm are rotationally connected with the second connecting block, the first connecting block is rotationally connected with the fixing base, the connecting assembly is connected with the second connecting block, and pneumatic springs are arranged in the first arm and the second arm. The two ends of the pneumatic spring are rotationally connected with the first connecting block and the second connecting block correspondingly, the pneumatic spring is detachably connected with the first connecting block and the second connecting block, and a window for disassembling the pneumatic spring is formed in the upper portion of the first arm. According to the displayer support, the pneumatic spring is detached and replaced directly through the window detaching bolt, and the displayer support is more convenient and faster to use.

Description

Technical Field

[0001] The utility model relates to the technical field of display brackets, and particularly discloses a heavy-duty display bracket. Background Art

[0002] A monitor stand is a device used to support and fix a monitor. It can provide different heights, tilt angles, and rotation functions to help users adjust to the most comfortable viewing position. Choosing a suitable monitor stand can improve work efficiency and reduce stress on the neck and back. As the monitor stand is used for a longer period of time, the pneumatic spring inside it will gradually fail due to fatigue, overload, gas leakage, etc., which will cause the monitor to be unable to remain stably in the appropriate position.

[0003] For example, patent No. CN213712480U, published on July 16, 2021, discloses a labor-saving adjustment mechanism for a monitor stand, which includes a rolling bearing connected to a threaded slider of the monitor stand. The axial direction of the rolling bearing is arranged to be perpendicular to the axial direction of the screw. The outer rolling surface of the rolling bearing contacts the lower connecting piece, so that when the threaded slider is adjusted up and down by the screw, the rolling bearing rolls along the lower connecting piece. The labor-saving adjustment mechanism for the monitor stand and the corresponding monitor stand generate very little friction, which can achieve easy adjustment of the monitor stand force arm.

[0004] A shortcoming of existing display stands including the above-mentioned patent is that when the pneumatic spring fails, the structure of the stand corresponding to the position of the pneumatic spring needs to be completely disassembled, which is inconvenient to operate. Utility Model Content

[0005] The utility model aims to provide a heavy-duty display bracket which is convenient for replacing a pneumatic spring.

[0006] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0007] A heavy-duty display stand includes a fixing base, a support arm and a connecting assembly connected in sequence. The support arm includes a first arm, a second arm, a first connecting block and a second connecting block. The first arm and the second arm are arranged side by side up and down. One end of the first arm and the second arm are both rotatably connected to the first connecting block, and the other end of the first arm and the second arm are both rotatably connected to the second connecting block. The first connecting block is rotatably connected to the fixing base, and the connecting assembly is connected to the second connecting block. Pneumatic springs are provided inside the first arm and the second arm, and both ends of the pneumatic springs are rotatably connected to the first connecting block and the second connecting block respectively. The pneumatic springs are detachably connected to the first connecting block and the second connecting block. A window for disassembling the pneumatic spring is provided on the upper part of the first arm.

[0008] The above-mentioned display bracket has a first shaft fixedly connected inside the first connecting block, and a first ring is rotatably connected to the first shaft. A second shaft is fixedly connected inside the second connecting block, and a second ring is rotatably connected to the second shaft. One end of the pneumatic spring is detachably connected to the first ring, and the other end of the pneumatic spring is detachably connected to the second ring.

[0009] The display stand has a protective shell attached to the outside of the first arm, which covers the window.

[0010] The above-mentioned display bracket has limiting members on both the first connecting block and the second connecting block. The two limiting members are driven to lock the two ends of the first arm respectively so that the first arm cannot rotate relative to the first connecting block and the second connecting block.

[0011] The above-mentioned display bracket has a third shaft fixedly connected to the first connecting block, the second shaft and the third shaft extend to the outside of the second connecting block and the first connecting block respectively, the two ends of the first arm are rotatably connected to the second shaft and the third shaft respectively, and the limiting member includes a fixed part installed on the second shaft or the third shaft and a movable part installed on the inner wall of the first arm, and the movable part is driven to move toward the fixed part and engage with the fixed part.

[0012] The above-mentioned display bracket, the fixed part includes a first gear mounted on the second shaft or the third shaft, the movable part includes a second gear installed on the inner wall of the first arm, and the second gear has a locking position engaged with the first gear and an unlocking position staggered with the first gear along its own axial direction.

[0013] In the above-mentioned display bracket, the first gear and the second gear are both bevel gears.

[0014] In the above-mentioned display bracket, a telescopic rod is fixedly connected to the position of the second gear on the inner wall of the first arm, and the second gear is fixed to the corresponding telescopic rod. An adjustment spring is mounted on the telescopic rod to maintain the second gear in a locked position. An extrusion piece is provided on the inner side of the protective shell at the position corresponding to the second gear. When the protective shell is clamped to the outside of the first arm and the second arm, the extrusion piece pushes the second gear to separate from the first gear.

[0015] The above-mentioned display bracket, the extrusion part includes an extrusion rod fixed to the top wall of the protective shell, the end of the extrusion rod away from the protective shell is wedge-shaped, an adjustment rod is fixed to the second gear, and the end of the adjustment rod away from the second gear extends between the extrusion rod and the inner wall of the side of the protective shell.

[0016] The two extrusion rods of the display bracket are in contact with two ends of the window respectively.

[0017] In the above technical solution, the display bracket provided by the utility model has a window opened on the first arm, and a first axis is set in the first connecting block, and a second axis is set in the second connecting block, and a first ring and a second ring are respectively mounted on the first axis and the second axis, and the two ends of the pneumatic spring are respectively connected to the first ring and the second ring by bolts. When the pneumatic spring fails, the connection between the pneumatic spring and the first ring and the second ring can be cancelled by directly removing the bolts through the window. The pneumatic spring can be replaced without completely disassembling the first arm and the second arm, which is more convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 A schematic diagram of the front structure of a display stand provided by an embodiment of the present utility model;

[0020] Figure 2 A partial cross-sectional view of a display stand provided by an embodiment of the present utility model;

[0021] Figure 3 A top view of the protective shell and the second arm provided in an embodiment of the present utility model;

[0022] Figure 4 A cross-sectional view of the protective shell and the first arm in a connected state according to an embodiment of the present invention;

[0023] Figure 5 A schematic structural diagram of a protective shell provided in an embodiment of the present utility model;

[0024] Figure 6 A cross-sectional view provided for an embodiment of the present utility model;

[0025] Figure 7 The embodiment of the present utility model provides Figure 2 A in the middle is an enlarged schematic diagram;

[0026] Figure 8 The embodiment of the present utility model provides Figure 3 Enlarged schematic diagram of point B in the middle.

[0027] Description of reference numerals:

[0028] 1. Fixed seat; 2. Support arm; 21. First arm; 211. Window; 22. Second arm; 23. First connecting block; 231. First axis; 232. First ring; 24. Second connecting block; 241. Second axis; 242. Second ring; 25. Third axis; 3. Connecting assembly; 4. Pneumatic spring; 5. Protective shell; 51. Extrusion rod; 6. Limiting member; 61. First gear; 62. Second gear; 63. Telescopic rod; 64. Adjustment spring; 65. Adjustment rod. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0030] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inside", "outside", "front end", "rear end", "head", "tail", etc. indicate directions or positional relationships based on the directions 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 direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] like Figures 1-8 As shown, the heavy-duty display stand provided by the embodiment of the present invention includes a fixing base 1, an arm 2 and a connecting assembly 3 connected in sequence, wherein the arm 2 includes a first arm 21, a second arm 22, a first connecting block 23 and a second connecting block 24, and the first arm 21 and the second arm 22 are arranged in parallel up and down, as shown in FIG. Figure 1 and Figure 2 As shown, one end of the first arm 21 and the second arm 22 is Figure 1 and Figure 2 The right end in the figure is connected to the first connecting block 23, and the other end of the first arm 21 and the second arm 22 is also connected to the first connecting block 23. Figure 1 and Figure 2 The left ends in the view are both rotatably connected to the second connecting block 24, the rotation axes of the first arm 21 and the second arm 22 at the connection positions with the first connecting block 23 and the second connecting block 24 are both in a horizontal state, the first connecting block 23 is rotatably connected to the fixing seat 1, and the rotation axis of the first connecting block 23 is vertically arranged, as shown in FIG. Figure 1 and Figure 2 As shown, the first connecting block 23 is approximately cylindrical. Optionally, the lower end of the first connecting block 23 has a smaller diameter. The fixing base 1 is provided with a socket (not shown in the figure) that matches the lower end of the first connecting block 23. The connecting assembly 3 is connected to the second connecting block 24. Figure 1 and Figure 2 As shown, the connecting component 3 includes a plate connected to the display housing and a connecting column plugged into the second connecting block 24. The plate is detachably connected to the connecting column through the mounting block. The structure of the connecting component 3 and the connection between the structures are all existing technologies and can be directly applied without further explanation. In addition, a pneumatic spring 4 is provided inside the first arm 21 and the second arm 22. The two ends of the pneumatic spring 4 are rotatably connected to the first connecting block 23 and the second connecting block 24 respectively, and the pneumatic spring 4 is detachably connected to the first connecting block 23 and the second connecting block 24. A window 211 for disassembling the pneumatic spring 4 is provided on the upper part of the first arm 21.

[0032] Optionally, to facilitate the disassembly and replacement of the pneumatic spring 4, a first shaft 231 is fixedly connected to the inside of the first connecting block 23, and a first ring 232 is rotatably connected to the first shaft 231. A second shaft 241 is fixedly connected to the inside of the second connecting block 24, and a second ring 242 is rotatably connected to the second shaft 241. One end of the pneumatic spring 4 is detachably connected to the first ring 232, and the other end of the pneumatic spring 4 is detachably connected to the second ring 242. Figure 7 As shown, both ends of the pneumatic spring 4 are detachably connected to the first ring 232 or the second ring 242 by bolts, so that the pneumatic spring 4 can be removed and replaced from the inside of the first arm 21 and the second arm 22 through the window 211 without disassembling the first arm 21 and the second arm 22.

[0033] When the monitor stand is in use, the fixing base 1 is fixed to the edge of the desktop, the first connecting block 23 is rotatably mounted on the fixing base 1, and the connecting column of the connecting component 3 is plugged into the second connecting block 24 to achieve quick disassembly and assembly of the connecting column and the second connecting block 24. The monitor is mounted on the plate of the connecting component 3. When the monitor needs to be adjusted up and down, the angle can be adjusted up and down by simply holding the monitor and lifting it up or pressing it down. When adjusting the angle up and down, the ends of the first arm 21 and the second arm 22 rotate relative to the first connecting block 23 and the second connecting block 24 respectively, and the pneumatic spring 4 extends or shortens to adapt to the angle change of the first arm 21 and the second arm 22 after adjustment and keep the monitor in a stable state after adjustment. When adjusting the horizontal position, hold the monitor and swing it left and right to cause the first connecting block 23 to rotate relative to the fixing base 1, so that the monitor can be adjusted left and right. In specific implementation, a rubber pad can be provided at the connection between the first connecting block 23 and the fixing base 1 to increase the friction between the first connecting block 23 and the fixing base 1, ensuring that the monitor can maintain the adjusted angle after each left and right angle adjustment.

[0034] The display bracket provided by the embodiment of the present invention has a window 211 opened on the first arm 21, and a first shaft 231 is set in the first connecting block 23, and a second shaft 241 is set in the second connecting block 24, and a first ring 232 and a second ring 242 are respectively mounted on the first shaft 231 and the second shaft 241, and the two ends of the pneumatic spring 4 are respectively connected to the first ring 232 and the second ring 242 by bolts. When the pneumatic spring 4 fails, the connection between the pneumatic spring 4 and the first ring 232 and the second ring 242 can be canceled by directly removing the bolts through the window 211. The pneumatic spring 4 can be replaced without completely disassembling the first arm 21 and the second arm 22, which is more convenient and quick.

[0035] Furthermore, a protective shell 5 is clamped to the outside of the first arm 21, and the protective shell 5 covers the window 211. Preferably, the length of the protective shell 5 is smaller than the length of the first arm 21 and the second arm 22 to prevent the rotation of the first arm 21 and the second arm 22 from being affected by the protective shell 5, and the protective shell 5 is clamped to the outside of the first arm 21 and extends to the outside of the second arm 22.

[0036] In another embodiment of the present invention, a limiting member 6 is provided on both the first connecting block 23 and the second connecting block 24. The two limiting members 6 are driven to lock the two ends of the first arm 21 respectively so that the first arm 21 cannot rotate relative to the first connecting block 23 and the second connecting block 24.

[0037] Optionally, a third shaft 25 is also fixedly connected to the first connecting block 23, and the second shaft 241 and the third shaft 25 extend to the outside of the second connecting block 24 and the first connecting block 23 respectively. The two ends of the first arm 21 are rotatably connected to the second shaft 241 and the third shaft 25 respectively. The limiter 6 includes a fixed part installed on the second shaft 241 or the third shaft 25 and a movable part installed on the inner wall of the first arm 21. The movable part is driven to move toward the fixed part and engage with the fixed part.

[0038] Furthermore, the fixed part includes a first gear 61 mounted on the second shaft 241 or the third shaft 25, and the movable part includes a second gear 62 installed on the inner wall of the first arm 21. The second gear 62 has a locking position engaged with the first gear 61 and an unlocking position staggered with the first gear 61 along its own axial direction.

[0039] Specifically, when the pneumatic spring 4 is disassembled and replaced, through the cooperation between the first gear 61 and the second gear 62, the second gear 62 in the locked position can clamp the first gear 61 and prevent it from rotating, thereby limiting the first arm 21 and the second arm 22 to remain stable in their current state. That is, when the pneumatic spring 4 is disassembled and replaced, the first arm 21 in the locked state can still support the display, and there is no need to disassemble the display and then replace the pneumatic spring 4.

[0040] Preferably, the first gear 61 and the second gear 62 are both bevel gears. With such a configuration, when the second gear 62 moves toward the first gear 61 and contacts the first gear 61, it will not be blocked and unable to move. Instead, it will drive the first gear 61 to rotate a certain angle until the second gear 62 can engage with the first gear 61, making it easier to adjust the second gear 62 to a locked position engaged with the first gear 61.

[0041] Furthermore, a telescopic rod 63 is fixed to the position of the second gear 62 on the inner wall of the first arm 21, and the second gear 62 is fixed to the corresponding telescopic rod 63. The telescopic rod 63 is provided with an adjustment spring 64 for maintaining the second gear 62 in a locked position. The telescopic rod 63 includes a first rod and a second rod. The first rod is mounted on the outside of the second rod, and the second rod can only be retracted toward the inside of the first rod along the axial direction of the first rod. In this way, the second gear 62 cannot rotate relative to the telescopic rod 63 and can only move horizontally in conjunction with the retraction of the second rod toward the inside of the first rod. An extrusion piece is provided on the inner side of the protective shell 5 at the position corresponding to the second gear 62. When the protective shell 5 is clamped to the outside of the first arm 21 and the second arm 22, the extrusion piece pushes the second gear 62 to separate from the first gear 61.

[0042] Furthermore, the extrusion member includes an extrusion rod 51 fixed to the top wall of the protective shell 5, and the end of the extrusion rod 51 away from the protective shell 5 is wedge-shaped. An adjustment rod 65 is fixed to the second gear 62, and the end of the adjustment rod 65 away from the second gear 62 extends between the extrusion rod 51 and the inner wall of the side of the protective shell 5.

[0043] Specifically, such as Figures 4 to 6 As shown, when the protective shell 5 is clamped to the outside of the first arm 21, the extrusion rod 51 extends into the interior of the first arm 21 through the window 211, and after contacting the adjustment rod 65 fixed to the second gear 62, it can squeeze the adjustment rod 65 to move toward the side wall of the first arm 21. At this time, the adjustment rod 65 drives the second gear 62 to move synchronously, so that the telescopic rod 63 contracts, and the second gear 62 is adjusted from the locked position to the unlocked position. During this process, the adjustment spring 64 is squeezed and contracted by the second gear 62; when the protective shell 5 is removed, as the extrusion rod 51 moves outward, the adjustment spring 64 pushes the second gear 62 from the unlocked position to the locked position, thereby locking the first arm 21.

[0044] During the use of the protective shell 5, the protective shell 5 can cover the window 211, thereby improving the aesthetics of the support arm 2, and because the second gear 62 needs to squeeze the adjustment rod 65 toward the inner wall of the first arm 21 through the wedge-shaped surface at the lower part of the extrusion rod 51 when adjusting from the unlocked position to the locked position, the extrusion rod 51 can be subjected to the friction force from the adjustment rod 65 at this time. In specific implementation, the friction between the extrusion rod 51 and the adjustment rod 65 can be improved by coating an anti-slip layer on the outer walls of both the extrusion rod 51 and the adjustment rod 65, thereby improving the firmness of the connection between the protective shell 5 and the first arm 21.

[0045] Preferably, the two extrusion rods 51 are in contact with the two ends of the window 211 respectively. The two ends of the window 211 restrict the two extrusion rods 51 to position the installation of the protective shell 5, so that the protective shell 5 has only one installation angle and position, while also ensuring that the extrusion rod 51 can be in a position that matches the adjustment rod 65 every time.

[0046] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A heavy-duty display stand comprising a fixing base, an arm and a connecting assembly connected in sequence, characterized in that: The support arm includes a first arm, a second arm, a first connecting block and a second connecting block. The first arm and the second arm are arranged side by side up and down, one end of the first arm and the second arm are rotatably connected to the first connecting block, and the other end of the first arm and the second arm are rotatably connected to the second connecting block. The first connecting block is rotatably connected to the fixed seat, and the connecting assembly is connected to the second connecting block. Pneumatic springs are arranged inside the first arm and the second arm, and the two ends of the pneumatic springs are rotatably connected to the first connecting block and the second connecting block respectively, and the pneumatic springs are detachably connected to the first connecting block and the second connecting block. A window for disassembling the pneumatic spring is provided on the upper part of the first arm.

2. The heavy-duty display stand according to claim 1, characterized in that: A first shaft is fixedly connected inside the first connecting block, and a first ring is rotatably connected to the first shaft. A second shaft is fixedly connected inside the second connecting block, and a second ring is rotatably connected to the second shaft. One end of the pneumatic spring is detachably connected to the first ring, and the other end of the pneumatic spring is detachably connected to the second ring.

3. The heavy-duty display stand according to claim 1 or 2, characterized in that: A protective shell is clamped on the outside of the first arm, and the protective shell covers the window.

4. The heavy-duty display stand according to claim 3, characterized in that: Limiting members are provided on both the first connecting block and the second connecting block. The two limiting members are driven to lock the two ends of the first arm respectively so that the first arm cannot rotate relative to the first connecting block and the second connecting block.

5. The heavy-duty display stand according to claim 4, characterized in that: A third shaft is also fixedly connected to the first connecting block, and the second shaft and the third shaft extend to the outside of the second connecting block and the first connecting block respectively. The two ends of the first arm are rotatably connected to the second shaft and the third shaft respectively. The limiter includes a fixed part installed on the second shaft or the third shaft and a movable part installed on the inner wall of the first arm. The movable part is driven to move toward the fixed part and engage with the fixed part.

6. The heavy-duty display stand according to claim 5, characterized in that: The fixed part includes a first gear sleeved on the second shaft or the third shaft, and the movable part includes a second gear installed on the inner wall of the first arm. The second gear has a locking position meshing with the first gear and an unlocking position staggered with the first gear along its own axial direction.

7. The heavy-duty display stand according to claim 6, wherein: The first gear and the second gear are both bevel gears.

8. The heavy-duty display stand according to claim 6, wherein: A telescopic rod is fixed to the position of the second gear on the inner wall of the first arm, and the second gear is fixed to the corresponding telescopic rod. An adjustment spring is mounted on the telescopic rod to maintain the second gear in a locked position. An extrusion piece is provided on the inner side of the protective shell at the position corresponding to the second gear. When the protective shell is clamped to the outside of the first arm and the second arm, the extrusion piece pushes the second gear to separate from the first gear.

9. The heavy-duty display stand according to claim 8, wherein: The extrusion piece includes an extrusion rod fixed to the top wall of the protective shell, the end of the extrusion rod away from the protective shell is wedge-shaped, an adjustment rod is fixed to the second gear, and the end of the adjustment rod away from the second gear extends between the extrusion rod and the inner wall of the side of the protective shell.

10. The heavy-duty display stand according to claim 9, wherein: The two extrusion rods are in contact with two ends of the window respectively.

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