Display support

Abstract

The utility model discloses a display support which comprises a rotating shaft seat and a U-shaped connector, the rotating shaft seat is hinged to the U-shaped connector through a second rotating shaft, two torsion springs are sleeved outside the second rotating shaft, a bottom cover covers the bottom of the rotating shaft seat, the bottom cover is in threaded connection with the rotating shaft seat through a locking screw, and an adjusting bolt, a first adjusting block and a positioning nut are arranged in the rotating shaft seat. One side edge of the first adjusting block is provided with an arc-shaped stopping face. One end of the torsion spring abuts against the lower portion of the arc-shaped stopping face. The two sides of a second shaft hole of the rotating shaft base are each provided with a first gasket. One face of each first gasket is provided with a damping piece. The face, away from the corresponding first gasket, of each damping piece is provided with a conical part. Conical surface grooves clamped with the conical part are formed in the two sides of the second shaft hole, and a limiting notch for clamping a hook part at the other end of the torsional spring is formed in one side edge of the gasket. The structure can improve damping performance and further achieve head lowering prevention.

Description

Technical Field

[0001] This utility model relates to the technical field of monitor stands, and specifically to a monitor stand. Background Technology

[0002] Monitor stands can help solve various technical problems people encounter when using computers at home or in commercial offices. Their ergonomic design can prevent health problems caused by work fatigue, improve work efficiency, and create an ideal space for living and working.

[0003] When a monitor is mounted on a stand, the stress on the stand increases suddenly, especially with large monitors. This can cause the monitor to quickly tilt downwards, causing the stand to sag rapidly. This increases the risk of the monitor colliding with external objects and potentially injuring installers. Therefore, to prevent monitors from tilting downwards, anti-tilt structures have been designed, such as those described in patent public account CN 221592381. The monitor stand disclosed by U uses a torsion spring fitted onto the rotating shaft between the hinge and the connector. The torsion spring is designed to provide support and cushioning. Simultaneously, flat friction pads and friction gaskets on the sides provide damping and clamping, ultimately preventing the user from tilting their head down. However, this structure has several problems: 1. Because the friction pads are flat and need to be fitted onto the hinge, the contact area with the side of the hinge is too small, resulting in insufficient friction and poor damping, which limits the fixation of the monitor. Also, the torsion spring is directly clamped onto the hinge, making it impossible to adjust the torsion spring's torque. After prolonged use, the torsion spring is prone to fatigue, and the torque decreases, making it easier to tilt the head down. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this utility model is to provide a monitor stand to solve the problems mentioned in the background art, such as insufficient friction strength between the pivot seat and the connector, poor damping effect, and inability to adjust the torsion spring torque.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a monitor bracket, comprising a base, a cantilever, a pivot seat, a U-shaped connector, and a panel assembly. The panel assembly is connected to the U-shaped connector. The pivot seat has a second through-hole, and the U-shaped connector has a third hole concentric with the second hole. The pivot seat and the U-shaped connector are rotatably connected by a second pivot. The second pivot passes through the second hole and the third hole. Two torsion springs with their ends abutting each other are sleeved on the second pivot. A bottom cover is fitted onto the bottom of the pivot seat. The bottom cover is threadedly connected to the pivot seat by a locking screw. An adjusting bolt, an adjusting block, and a positioning nut are provided inside the pivot seat. The adjusting bolt rotates through the bottom cover and engages with the positioning nut. The adjusting block is fixedly connected to the adjusting bolt and can move up and down as the adjusting bolt rotates. One side of the adjusting block is provided with an arc-shaped stop surface. One end of the torsion spring is elastically abutted against the lower part of the arc-shaped stop surface. Two shims are provided on both sides of the second shaft hole of the rotating shaft seat. The two shims are located on the outside of the two torsion springs. A damping element is provided on the side of the shim facing the torsion spring. The side of the damping element away from the shim is provided with a tapered part. A tapered groove is provided on both sides of the second shaft hole. The tapered part is locked in the tapered groove. A limiting notch is provided on the side of each shim. The other end of the torsion spring is locked in the limiting notch and placed in the U-shaped notch on the side of the U-shaped connector.

[0006] Preferably, to allow the U-shaped connector to stop freely at different heights relative to the base when moving upwards or downwards, parallel upper and lower connecting arms are provided between the base and the cantilever. A quadrilateral structure is formed between the hinge points of the upper and lower connecting arms, the cantilever and lower connecting arm, the lower connecting arm and base, and the upper connecting arm and base. A mechanical spring is provided between the upper and lower connecting arms. A hinge shaft is provided inside the cantilever. One end of the mechanical spring is hinged to the hinge shaft, and the other end of the mechanical spring is hinged to an adjusting block. The adjusting block is connected to... An adjusting screw is threadedly connected. The adjusting screw includes an internal hexagon head, a threaded rod, and a smooth rod. The threaded rod is located between the internal hexagon head and the smooth rod. A clamp is fixed inside the cantilever by a countersunk screw. The countersunk screw passes through the cantilever and is threadedly connected to the clamp. The clamp has a semi-circular groove 1. The cantilever has a semi-circular groove 2 that mates with the semi-circular groove 1. The semi-circular groove 1 and the semi-circular groove 2 mate to form a through hole. The smooth rod and the threaded rod of the adjusting screw pass through the base from above and are locked in the through hole. When the internal hexagon head is operated to drive the threaded rod to rotate, the adjusting block 2 moves up and down along the threaded rod.

[0007] Preferably, in order to achieve the purpose of quiet operation when rotating the pivot seat, the cantilever is provided with a vertically penetrating first shaft hole, the pivot seat is provided with a first rotating shaft that mates with the first shaft hole, the first rotating shaft is covered with a plastic gasket located between the pivot seat and the cantilever, the lower surface of the plastic gasket is provided with a circular boss, square protrusions are provided on both sides of the circular boss, a circular groove is provided above the first shaft hole that engages with the circular boss, and a locking groove is provided in the circular groove that mates with the square protrusions.

[0008] Preferably, in order to limit the damping component and achieve a certain connection between the damping component and the first gasket, each first gasket has one or more U-shaped limiting grooves on its side, and the side of the damping component facing the first gasket has a limiting boss, which is engaged in the U-shaped limiting groove.

[0009] Preferably, for ease of disassembly, the second rotating shaft includes a screw and a first internal thread portion that is threadedly connected to the screw, and the first internal thread portion is integrally formed with the U-shaped connector. The screw passes through a washer, a damping element, and a torsion spring.

[0010] Preferably, for ease of disassembly, one or more locking screws are inserted into each side of the U-shaped connector. All locking screws on the same side of the U-shaped connector pass through the U-shaped connector and the washer in sequence and are then threaded into the damping component.

[0011] Preferably, to achieve quick disassembly and assembly, the panel assembly includes a base plate and a panel. The panel has one or more mounting through holes, a hook is provided on the top of the panel, a hook groove that mates with the hook is provided on the base plate, a second internal thread is provided on the bottom of the panel, and a locking knob that is threadedly connected to the second internal thread is provided on the bottom of the base plate. The base plate is connected to a U-shaped connector.

[0012] In order to limit the vertical rotation angle of the display, a positioning screw is symmetrically arranged on the front and rear sides of the U-shaped connector, and a fan-shaped notch is provided on the front and rear sides of the pivot seat. The shank of the positioning screw is placed in the fan-shaped notch and can move along the trajectory of the fan-shaped notch.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This structure expands the friction area of ​​the hinged part of the rotating shaft seat and the U-shaped connector by using inclined friction, further improving the damping force to achieve clamping, and further avoiding the problem of the U-shaped connector tilting down due to the excessive weight of the display. At the same time, by adding a torsion spring and coordinating the adjustment of the torsion spring torque for compensation, a double insurance against tilting down is achieved. Attached Figure Description

[0014] Figure 1A three-dimensional monitor stand as disclosed in Embodiment 1 Figure 1 ;

[0015] Figure 2 A three-dimensional monitor stand as disclosed in Embodiment 1 Figure 2 ;

[0016] Figure 3 A three-dimensional monitor stand as disclosed in Embodiment 1 Figure 3 ;

[0017] Figure 4 This is a schematic diagram of the structure of a monitor bracket in Embodiment 1 when the panel, internal thread part and other components are separated;

[0018] Figure 5 This is a schematic diagram showing the connection of the pivot seat, U-shaped connector, and panel assembly in Example 1;

[0019] Figure 6 for Figure 5 Exploded view;

[0020] Figure 7 This is a schematic diagram of the damping component.

[0021] Figure 8 A schematic diagram of a structure in which two torsion springs are installed on the second rotating shaft, and each torsion spring has a washer and a damping component on both sides;

[0022] Figure 9 This is a schematic diagram of the connection structure between the base and the cantilever.

[0023] Figure 10 for Figure 9 Exploded view;

[0024] Figure 11 This is a schematic diagram of the connection structure between the mechanical spring, the cantilever, and the second adjusting block.

[0025] Figure 12 This is a schematic diagram of the installation structure of the base and clamps;

[0026] Figure 13 This is a schematic diagram of the clamp structure;

[0027] Figure 14 This is a schematic diagram of the adjusting screw.

[0028] Figure 15 This is a schematic diagram of the connection structure between the U-shaped connector and the second rotating shaft;

[0029] Figure 16 This is an exploded view of the U-shaped connector and screw.

[0030] In the diagram: 1. Base; 2. Cantilever; 3. Shaft seat; 4. U-shaped connector; 401. Protective cover; 5. Panel assembly; 5. Base plate; 501. Panel; 502. Mounting through hole; 503. Hook; 504. Hook groove; 505. Second internal thread; 506. Locking knob; 507. First shaft hole; 6. First shaft; 7. Second shaft hole; 8. Third shaft hole; 10. Second shaft; 9. Torsion spring; 11. Bottom cover; 12. Locking screw; 13. Adjusting bolt; 14. Adjusting block one; 15. Positioning nut; 16. Arc-shaped stop surface; 151. Washer one; 17. Damping element; 18. Conical part; 181. Conical groove; 19. Limiting... Notch 20, U-shaped notch 301, upper connecting arm 21, lower connecting arm 22, mechanical spring 23, hinge shaft 24, adjusting block two 25, adjusting screw 26, internal hex head 261, threaded rod 262, smooth rod part 263, countersunk screw 27, clamp 28, semi-circular groove one 281, semi-circular groove two 29, plastic gasket 30, circular boss 31, square boss 32, circular groove 33, positioning groove 34, U-shaped limiting groove 35, limiting boss 36, first internal thread part 37, screw one 38, locking screw 39, positioning screw 40, fan-shaped notch 41. Detailed Implementation

[0031] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0032] Example 1:

[0033] Please see Figure 1-14This embodiment discloses a monitor bracket, including a base 1, a cantilever 2, a pivot 3, a U-shaped connector 4, and a panel assembly 5. The panel assembly 5 is connected to the U-shaped connector 4. The pivot 3 has a second through-hole 8, and the U-shaped connector 4 has a third through-hole 10 concentric with the second through-hole 8. The pivot 3 and the U-shaped connector 4 are rotatably connected by a second pivot 9. The second pivot 9 passes through the second through-hole 8 and the third through-hole 10, and has two sleeves at one end. A torsion spring 11 with surfaces abutting each other is provided. A bottom cover 12 is fitted onto the bottom of the rotating shaft seat 3. The bottom cover 12 is threadedly connected to the rotating shaft seat 3 by a locking screw 13. An adjusting bolt 14, an adjusting block 15, and a positioning nut 16 are provided inside the rotating shaft seat 3. The adjusting bolt 14 rotates through the bottom cover 12 and is fixedly connected to the positioning nut 16. The upper end face of the positioning nut 16 abuts against the inner top surface of the rotating shaft seat 3, so that when the adjusting bolt 14 rotates, the upper end face of the positioning nut 16 is held in place, preventing the adjusting bolt 14 from rotating. 4. The adjustment block 15 is threadedly connected to the adjustment bolt 14 and can move up and down as the adjustment bolt 14 rotates. The adjustment block 15 has an arc-shaped stop surface 151 on its side. One end of the torsion spring 11 elastically abuts against the lower part of the arc-shaped stop surface 151. A washer 17 is provided on both sides of the second shaft hole 8 of the rotating shaft seat 3. The two washer 17s are located outside the two torsion springs 11. The side of the washer 17 facing the torsion spring 11 has a... A damping element 18 is provided with a tapered portion 181 on the side away from the gasket 17. A tapered groove 19 is provided on both sides of the second shaft hole 8. The tapered portion 181 is engaged in the tapered groove 19. A limiting notch 20 is provided on the side of each gasket 17. The hook of the other end of the torsion spring 11 is engaged in the limiting notch 20 and placed in the U-shaped notch 301 on the side of the U-shaped connector 4. The damping element 18 is made of plastic and the gasket 17 is made of iron.

[0034] Preferably, to allow the U-shaped connector 4 to stop freely at different heights relative to the base when moving upwards or downwards, an upper connecting arm 21 and a lower connecting arm 22 are provided parallel to each other between the base 1 and the cantilever 2. A quadrilateral structure is formed between the hinge points of the upper connecting arm 21 and the cantilever 2, the cantilever 2 and the lower connecting arm 22, the lower connecting arm 22 and the base 1, and the upper connecting arm 21 and the base 1. A mechanical spring 23 is provided between the upper connecting arm 21 and the lower connecting arm 22. A hinge shaft 24 is provided inside the cantilever 2. One end of the mechanical spring 23 is hinged to the hinge shaft 24. The other end of 23 is hinged to an adjusting block 25. The adjusting block 25 is threadedly connected to an adjusting screw 26. The adjusting screw 26 includes an internal hexagon head 261, a threaded rod 262, and a smooth rod 263. The threaded rod 262 is located between the internal hexagon head 261 and the smooth rod 263. A clamp 28 is fixed inside the cantilever 2 by a countersunk screw 27. The countersunk screw 27 passes through the cantilever 2 and is threadedly connected to the clamp 28. The clamp 28 is provided with a semi-circular groove 281. The cantilever 2 is provided with a semi-circular groove 29 that mates with the semi-circular groove 281. The semi-circular groove 281 and the semi-circular groove 29 mate to form a through hole. The adjusting screw 2... The smooth rod 263 and threaded rod 262 of the 6-type connector 1 pass into the base 1 from above, with the smooth rod 263 engaging in the through hole. This allows the adjusting block 25 to move up and down along the threaded rod 262 when the internal hexagonal head 261 is operated to drive the threaded rod 262 to rotate. For protection, a protective cover 401 is fitted over the U-shaped connector 4. With this structure, the internal hexagonal head 261 is the operating end, and the smooth rod 263 is rotatably mounted within the base 1. This allows force to be applied to the internal hexagonal head 261 to drive the rotation of the threaded rod 262. When the internal hexagonal head 263 is operated to drive the threaded rod 262 to rotate, the adjusting block 25 moves up and down along the threaded rod 262. The adjustment block 25 is movable along the threaded rod 262, allowing it to move between the highest and lowest ends of the threaded rod 262. The entire structure adjusts the position of the adjustment block 25 on the threaded rod 262 according to the weight of the display on the panel assembly 5 at the front end of the U-shaped connector 4, so that when the U-shaped connector 4 is moved up or down, the U-shaped connector 4 can be freely stopped at different heights relative to the base 1. Moreover, in this structure, the hinge position of one end of the mechanical spring 23 forms a third point on the hinge axis 24 between the hinge point between the upper connecting arm 21 and the cantilever 2 and the hinge point between the cantilever 2 and the lower connecting arm 22, ensuring that installation is more convenient and that there is no mutual interference.Additionally, the other end of the mechanical spring 23 is hooked onto an adjusting block 25, which is threaded onto an adjusting screw 26. The head of one end of the adjusting screw 26 is confined within the base 1. The smooth rod 263 below the adjusting screw 26 is engaged in the through hole formed by the semi-circular groove 281 and semi-circular groove 29 of the clamp 28. The clamp 28 is locked within the cantilever 2 by a countersunk screw 27. Once locked, the adjusting screw 26 can only rotate within the base 1 and cannot be removed. This structure, by utilizing the clamp 28 to limit the lower end of the adjusting screw 26, provides a more stable locking mechanism compared to directly using a nut to limit the adjusting screw 26.

[0035] Preferably, in order to achieve the purpose of quiet operation when rotating the pivot seat 3, the cantilever 2 is provided with a vertically penetrating first shaft hole 6, and the pivot seat 3 is provided with a first rotating shaft 7 that mates with the first shaft hole 6. The first rotating shaft 7 is fitted with a plastic gasket 30 located between the pivot seat 3 and the cantilever 2. The lower surface of the plastic gasket 30 is provided with a circular boss 31, and square protrusions 32 are provided on both sides of the circular boss 31. A circular groove 33 is provided above the first shaft hole 6 that engages with the circular boss 31, and a locking groove 34 that mates with the square protrusions 32 is provided in the circular groove 33. By providing a plastic gasket 30 at the hinge of the cantilever 2 and the pivot seat 3, better lubrication is ensured, and at the same time, the noise reduction effect is achieved.

[0036] Preferably, in order to limit the damping element 18 and achieve a certain connection between the damping element 18 and the gasket 17, each gasket 17 has one or more U-shaped limiting grooves 35 on its side. The damping element 18 has a limiting boss 36 on the side facing the gasket 17. The limiting boss 36 is engaged in the U-shaped limiting groove 35. With the above structure, since the gasket 17 and the damping element 18 do not simply rely on the lower locking screw 39 to press together for synchronous action, the two are connected by a limiting connection, which ultimately ensures better synchronization of the action of the gasket 17 and the damping element 18.

[0037] like Figure 15 , Figure 16 As shown, preferably, for ease of disassembly, the second rotating shaft 9 includes a screw 38 and a first internal thread portion 37 that is threadedly connected to the screw 38. The first internal thread portion 37 is integrally formed with the U-shaped connector 4. The screw 38 passes through the washer 17, the damping element 18, and the torsion spring 11. The second rotating shaft 9 is connected to the first internal thread portion 37 by the screw 38, which enables rotation and facilitates disassembly.

[0038] Preferably, for easy disassembly, one or more locking screws 39 are inserted into each side of the U-shaped connector 4. All locking screws 39 on the same side of the U-shaped connector 4 pass through the U-shaped connector 4 and the washer 17 in sequence and are threadedly connected to the damping member 18. In this embodiment, by locking the locking screws 39, the locking and pressing between the U-shaped connector 4, the washer 17 and the damping member 18 is ensured. The locking is achieved by the locking screws 39 pressing the washer 17, and then the washer 17 pressing the damping member 18. When locking, the washer 17 and the damping member 18 can generate an inward locking force. At the same time, when rotating, a damping force is generated between the conical part 181 and the conical groove 19, and the conical surface of the conical part 181 generates a damping force value.

[0039] Preferably, for quick disassembly and assembly, the panel assembly 5 includes a base plate 501 and a panel 502. The panel 502 has one or more mounting through holes 503. A hook 504 is located on the top of the panel 502. The base plate 501 has a hook groove 505 that mates with the hook 504. A second internal thread portion 506 is located at the bottom of the panel 502. The second internal thread portion 506 can be formed by directly riveting a nut into the panel 502 using existing riveting technology to create an integrated structure, or by tapping the corresponding position on the panel 502 to create an internal thread. A locking knob 507, threadedly connected to the second internal thread portion 506, is located at the bottom of the base plate 501. The base plate 501 and the U-shaped connector 4... In this embodiment, the base plate 501 and the panel 502 can be quickly disassembled and installed. When installing the monitor on the panel 502, simply unscrew the locking knob 507 below to ensure that the threaded rod on the locking knob 507 is separated from the second internal thread 506. At this time, the entire panel 502 can be removed from the base plate 501. Then, by passing a screw through the mounting through hole 503 on the panel 502 and connecting it to the threaded hole on the back of the display screen, the panel 502 and the monitor can be locked together. Then, the hook 504 on the back of the panel 502 is hooked into the hook groove 505. Finally, by threading the threaded rod on the locking knob 507 to the second internal thread 506, the monitor can be quickly installed onto the monitor stand.

[0040] To limit the vertical rotation angle of the display, a positioning screw 40 is symmetrically arranged on both the front and rear sides of the U-shaped connector 4. A fan-shaped notch 41 is provided on both the front and rear sides of the pivot seat 3. The rod of the positioning screw 40 is placed within the fan-shaped notch 41 and can move along its trajectory. After the entire component is assembled, the positioning screw 40 is positioned within the fan-shaped notch 41. As the vertical angle of the U-shaped connector 4 is adjusted, when the positioning screw 40 rotates to the lowest position of the fan-shaped notch 41 and engages with the lowest boss surface of the fan-shaped notch 41, the positioning screw 40 is limited and cannot continue to rotate downwards. Similarly, when the positioning screw 40 rotates to the highest position of the fan-shaped notch 41 and engages with the highest boss surface of the fan-shaped notch 41, the positioning screw 40 is limited and cannot continue to rotate upwards. Therefore, this structure can limit the highest tilt position and the lowest downward position of the U-shaped connector 4.

[0041] This structure adds a damping element 18, with a tapered portion 181 on the side of the damping element 18, and a tapered groove 19 on the rotating shaft seat 3 that mates with the tapered portion 181. This increases the contact area between the rotating part of the rotating shaft seat 3 and the U-shaped connector 4, achieving inclined surface friction and thus improving damping performance. After installation, when the U-shaped connector 4, the gasket 17, and the damping element 18 are locked together, the gasket 17 and the damping element 18 can generate an inward locking force. At the same time, when rotating, a greater damping force is generated between the tapered portion 181 and the tapered groove 19. The inclined surface friction of the tapered portion 181 generates a greater frictional force than the planar friction, thereby increasing the damping force value and ultimately making the damping effect stronger.

[0042] This structure also adds two torsion springs 11, with one end of each spring 11 inserted into the limiting notch 20 and placed within the U-shaped notch 301 on the side of the U-shaped connector 4, and the other end inserted into an adjusting block 15. The adjusting block 15 is screwed onto the adjusting bolt 14, and the screw of the adjusting bolt 14 is locked and fixed with the positioning nut 16. The shaft seat 3 is hollow inside with an opening at the bottom. The bottom cover 12, in conjunction with two locking screws 13, is locked into the opening at the bottom of the shaft seat 3, thus closing the hollow part inside the shaft seat 3. This structural design facilitates the later disassembly of the adjusting bolt 14 and the removal of the adjusting block 15. During installation, one end of the torsion spring 11 is in the... When under stress, the adjusting block 15 will be pushed upwards, and the adjusting block 15 will also push the positioning nut 16 upwards, thus preventing the adjusting bolt 14 from falling down. During operation, rotating the adjusting bolt 14 left and right will cause the adjusting block 15 to move up and down. Ultimately, the arc-shaped stop surface 151 on the side of the adjusting block 15 will also move up and down, which will eventually cause one end of the torsion spring 11 to loosen or tighten up or down to adjust the torque of the torsion spring 11. When the arc-shaped stop surface 151 presses down on the torsion spring 11, one end of the torsion spring 11 tightens. At this time, the head of the entire monitor stand is tighter and can better play the role of preventing head tilting (i.e. preventing sagging).

[0043] Therefore, this structure uses inclined plane friction to increase the friction area of ​​the hinge joint of the pivot seat 3 and the U-shaped connector 4, further improving the damping force to achieve clamping, and further preventing the U-shaped connector 4 from tilting down due to the excessive weight of the display. At the same time, by adding a torsion spring 11 and adjusting the torque of the torsion spring 11 for compensation, a double insurance against tilting is achieved.

[0044] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A display bracket, comprising a pivot seat (3), a U-shaped connector (4), and a panel assembly (5), wherein the panel assembly (5) is connected to the U-shaped connector (4), the pivot seat (3) is provided with a transversely penetrating second shaft hole (8), the U-shaped connector (4) is provided with a third shaft hole (10) concentric with the second shaft hole (8), the pivot seat (3) and the U-shaped connector (4) are rotatably connected by a second pivot shaft (9), the second pivot shaft (9) being sleeved with two torsion springs (11) whose one end faces abut against each other, characterized in that: The bottom of the rotating shaft seat (3) is covered by a bottom cover (12), which is threadedly connected to the rotating shaft seat (3) by a locking screw (13). The rotating shaft seat (3) is provided with an adjusting bolt (14), an adjusting block (15), and a positioning nut (16). The adjusting bolt (14) rotates through the bottom cover (12) and is fixedly connected to the positioning nut (16). The adjusting block (15) is threadedly connected to the adjusting bolt (14) and can move up and down as the adjusting bolt (14) rotates. The side of the adjusting block (15) is provided with an arc-shaped stop surface (151). One end of the torsion spring (11) is elastically abutted against the bottom of the arc-shaped stop surface (151). A washer (17) is provided on both sides of the shaft hole (8). The two washers (17) are located on the outside of the two torsion springs (11). A damping element (18) is provided on the side of the washer (17) facing the torsion spring (11). A tapered part (181) is provided on the side of the damping element (18) away from the washer (17). A tapered groove (19) is provided on both sides of the second shaft hole (8). The tapered part (181) is locked in the tapered groove (19). A limiting notch (20) is provided on the side of each washer (17). The hook of the other end of the torsion spring (11) is locked in the limiting notch (20) and placed in the U-shaped notch (301) on the side of the U-shaped connector (4).

2. A monitor stand according to claim 1, characterized in that: It also includes a base (1) and a cantilever (2). A parallel upper connecting arm (21) and a lower connecting arm (22) are provided between the base (1) and the cantilever (2). A quadrilateral structure is formed between the hinge point between the upper connecting arm (21) and the cantilever (2), the hinge point between the cantilever (2) and the lower connecting arm (22), the hinge point between the lower connecting arm (22) and the base (1), and the hinge point between the upper connecting arm (21) and the base (1). The upper connecting arm (21)... A mechanical spring (23) is provided between the cantilever (2) and the lower connecting arm (22). A hinge shaft (24) is provided inside the cantilever (2). One end of the mechanical spring (23) is hinged to the hinge shaft (24), and the other end of the mechanical spring (23) is hinged to an adjusting block (25). The adjusting block (25) is threadedly connected to an adjusting screw (26). The adjusting screw (26) includes an internal hexagon head (261), a threaded rod (262), and... The smooth rod (263) and the threaded rod (262) are located between the internal hexagon head (261) and the smooth rod (263). A clamp (28) is fixed inside the cantilever (2) by a countersunk screw (27). The countersunk screw (27) passes through the cantilever (2) and is threaded to the clamp (28). A semi-circular groove (281) is provided on the clamp (28). A semi-circular groove (281) is provided inside the cantilever (2) to cooperate with the semi-circular groove (281). The second slot (29) and the first semicircular slot (281) and the second semicircular slot (29) cooperate to form a through hole. The smooth rod (263) and the threaded rod (262) of the adjusting screw (26) pass through the base (1) from above and are locked in the through hole. When the internal hexagon head (261) is operated to drive the threaded rod (262) to rotate, the second adjusting block (25) moves up and down along the threaded rod (262).

3. A monitor stand according to claim 2, characterized in that: The cantilever (2) is provided with a vertically penetrating first shaft hole (6), and the pivot seat (3) is provided with a first pivot (7) that cooperates with the first shaft hole (6). The first pivot (7) is covered with a plastic gasket (30) located between the pivot seat (3) and the cantilever (2). The lower surface of the plastic gasket (30) is provided with a circular boss (31), and square protrusions (32) are provided on both sides of the circular boss (31). A circular groove (33) that engages with the circular boss (31) is provided above the first shaft hole (6), and a locking groove (34) that cooperates with the square protrusion (32) is provided in the circular groove (33).

4. A monitor stand according to claim 1 or 2, characterized in that: Each gasket (17) has one or more U-shaped limiting grooves (35) on its side. The damping member (18) has a limiting boss (36) on the side facing the gasket (17). The limiting boss (36) is engaged in the U-shaped limiting groove (35).

5. A monitor stand according to claim 1 or 2, characterized in that: The second rotating shaft (9) includes a screw (38) and a first internal thread (37) that is threaded to the screw (38). The first internal thread (37) is integrally formed with the U-shaped connector (4). The screw (38) passes through the washer (17), the damping element (18), and the torsion spring (11).

6. A monitor stand according to claim 1 or 2, characterized in that: One or more locking screws (39) are inserted into each side of the U-shaped connector (4). All locking screws (39) on the same side of the U-shaped connector (4) pass through the U-shaped connector (4) and the washer (17) in sequence and are threaded into the damping component (18).

7. A monitor stand according to claim 1 or 2, characterized in that: The panel assembly (5) includes a base plate (501) and a panel (502). The panel (502) is provided with one or more mounting through holes (503). A hook (504) is provided on the top of the panel (502). A hook groove (505) that cooperates with the hook (504) is provided on the base plate (501). A second internal thread (506) is provided on the bottom of the panel (502). A locking knob (507) that is threadedly connected to the second internal thread (506) is provided on the bottom of the base plate (501). The base plate (501) is connected to a U-shaped connector (4).

8. A monitor stand according to claim 1 or 2, characterized in that: A positioning screw (40) is symmetrically arranged on the front and rear sides of the U-shaped connector (4), and a fan-shaped notch (41) is provided on both the front and rear sides of the rotating shaft seat (3). The rod of the positioning screw (40) is placed in the fan-shaped notch (41) and can move along the trajectory of the fan-shaped notch (41).

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