Adjustable support

By using a balancing assembly that works in coordination with multiple elastic elements and a transmission mechanism, the problem of large size and high cost of constant force elastic components in existing adjustable brackets is solved, achieving stable adjustment and cost reduction in narrow spaces.

CN122041018APending Publication Date: 2026-05-15NINGBO TUOTUO RIVER DESIGN CO
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NINGBO TUOTUO RIVER DESIGN CO
Filing Date
2026-04-03
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing adjustable brackets with constant force elastic components are large in size, occupy a lot of space, and are costly, which limits their portability and applicability.

Method used

A balancing assembly employs multiple elastic elements and a transmission mechanism to work in coordination. The elastic elements are indirectly connected to the base via a connecting seat, and the transmission mechanism is used for force transmission and synthesis to ensure that the force applied by the component is balanced with the load force.

Benefits of technology

It achieves stable adjustment in narrow spaces, reduces the thickness of the base, improves adjustment accuracy and applicability, and reduces costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides an adjustable support. The adjustable support comprises a base, a force application part and a balance assembly, the balance assembly comprises a plurality of elastic parts and a transmission mechanism, the transmission mechanism is functionally coupled to the base and can move relative to the base, the elastic parts comprise the first elastic part and the second elastic part, and the force application part is used for applying force to the first elastic part. Each of the plurality of elastic pieces can apply a corresponding elastic acting force to the transmission mechanism; the force applying piece can apply load acting force to the transmission mechanism, and when the force applying piece is operated, the force applying piece or the elastic pieces drive the transmission mechanism to move to a target position; when the transmission mechanism is located at the target position, the elastic acting force and the load acting force are balanced, so that the transmission mechanism and the force application piece are in a stress balance state. The adjustable support can solve the problems that a constant force elastic assembly of an existing adjustable support is large in size, large in occupied space and high in cost.
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Description

Technical Field

[0001] This invention relates to the field of equipment support technology, and more specifically, to an adjustable support. Background Technology

[0002] Adjustable stands can be used for monitors, medical equipment, office furniture, and various other applications requiring height and angle adjustment. The use of adjustable stands not only enhances the flexibility and ergonomic design of the equipment but also significantly improves user comfort and work efficiency. To achieve smooth, stepless height adjustment, existing adjustable stands generally employ constant-force elastic components as key components. As the name suggests, constant-force elastic components maintain a nearly constant output force during stretching or compression. This characteristic is crucial for maintaining stable positioning of the equipment in any location, while also ensuring ease of operation and safety.

[0003] However, traditional adjustable stands often use constant-force elastic components embedded in the columns to achieve stepless height adjustment. These components are typically large, such as a combination of a coil spring and a tower-shaped winding reel, taking up considerable space. This is especially problematic when dealing with heavy display devices, requiring further increases in the size or number of these components to achieve stepless height adjustment, thus limiting the portability and applicability of adjustable stands. Furthermore, the manufacturing and installation of constant-force elastic components present challenges such as increased costs and structural complexity. These factors, to some extent, restrict further optimization of the performance and effective cost control of adjustable stands. Summary of the Invention

[0004] The main objective of this invention is to provide an adjustable bracket that can solve the problems of large size, large space occupation, and high cost of the constant force elastic component of existing adjustable brackets.

[0005] To achieve the above objectives, according to one aspect of the present invention, an adjustable support is provided, comprising a base, a force-applying element, and a balancing assembly, wherein: the balancing assembly includes a plurality of elastic elements and a transmission mechanism, the transmission mechanism being functionally coupled to the base and capable of moving relative to the base; the plurality of elastic elements includes a first elastic element and a second elastic element, each of the plurality of elastic elements being capable of applying a corresponding elastic force to the transmission mechanism; the force-applying element is capable of applying a load force to the transmission mechanism, and when the force-applying element is operated, the force-applying element or the plurality of elastic elements drives the transmission mechanism to move to a target position; when the transmission mechanism is in the target position, the elastic force and the load force are balanced, so that the transmission mechanism and the force-applying element are in a state of force balance.

[0006] Furthermore, the first end of the first elastic element and the first end of the second elastic element are both connected to the base, and the second end of the first elastic element and the second end of the second elastic element are both connected to the transmission mechanism; the base is provided with a first connecting seat and a second connecting seat, the first end of the first elastic element is fixedly connected to the first connecting seat or rotatably connected, and the first end of the second elastic element is rotatably connected to the second connecting seat.

[0007] Furthermore, a bolt is provided on the first connecting seat, and the first end of the first elastic element is connected to the first connecting seat by the bolt. When the bolt is rotated, the distance between the first end of the first elastic element and the first connecting seat increases or decreases, so as to change the elastic force provided by the first elastic element.

[0008] Furthermore, the direction of the load force extends along the first direction; the direction of the elastic force applied by at least one of the multiple elastic elements extends along the first direction and is opposite to the direction of the load force; the direction of the elastic force applied by at least another of the multiple elastic elements extends along the first direction and is the same as the direction of the load force.

[0009] Furthermore, the transmission mechanism includes a transmission chain or transmission belt; a transmission wheel is provided on the base, and the transmission chain or transmission belt is in transmission cooperation with the transmission wheel; or, a transmission wheel and a first reversing member are provided on the base, the transmission chain or transmission belt is in transmission cooperation with the transmission wheel, and the transmission chain or transmission belt passes around the first reversing member; the direction of the load force extends along a first direction, which is the length extension direction of the transmission mechanism.

[0010] Furthermore, a transmission wheel and a first reversing member are provided on the base. One end of the transmission mechanism passes around the transmission wheel and is connected to the second elastic member, and the other end of the transmission mechanism passes around the first reversing member and is connected to the first elastic member. When the transmission mechanism includes a transmission chain, the transmission wheel is a sprocket, and the first reversing member is a sprocket, a pulley, or a tensioner with an arc-shaped guide surface. Alternatively, when the transmission mechanism includes a transmission belt, the transmission wheel is a gear, and the first reversing member is a gear or a pulley. The transmission mechanism meshes with the transmission wheel.

[0011] Furthermore, the transmission wheel is located in the central region of the base, and the first elastic element and the second elastic element are distributed on both sides of the transmission wheel at intervals, and the restoring forces generated by the first elastic element and the second elastic element are in different directions.

[0012] Furthermore, the balancing assembly also includes a first transmission member, one end of which is connected to the transmission mechanism, and the other end of which is connected to the second elastic member. The first transmission member can transmit the force of the second elastic member to the transmission mechanism. When in a state of force balance, the torque of the second elastic member acting on the first transmission member is equal to and opposite in direction to the torque of the transmission mechanism acting on the first transmission member.

[0013] Furthermore, the first transmission member is hinged to the base and forms a rotation center at the hinge position. The first transmission member includes a first connecting part and a second connecting part. The first connecting part is connected to the transmission mechanism, and the second connecting part is connected to the second elastic member. The first connecting part, the second connecting part, and the rotation center are arranged in a triangular distribution.

[0014] Furthermore, the transmission mechanism includes a slider, the direction of the load force extends along a first direction, and the trajectory of the transmission mechanism relative to the base is parallel to the first direction; wherein, a slide rail is provided on the base, and the transmission mechanism is slidably connected to the slide rail; or, a slide rail is provided on the transmission mechanism, and the slide rail is slidably connected to the base; one of the transmission mechanism and the first connecting part is provided with a sliding groove, and the other of the transmission mechanism and the first connecting part is provided with a sliding connection part, wherein when the transmission mechanism rotates, the sliding connection part can slide along the sliding groove and push the transmission mechanism to move relative to the base; the slider is provided with a rack part, and the rack part meshes with a transmission wheel provided on the base, wherein the transmission wheel is a gear.

[0015] Furthermore, the balancing assembly also includes a winding assembly rotatably mounted on the base, and a force-applying component that is flexible. The force-applying component is connected to the winding assembly, and a portion of the force-applying component can be wound around the outer periphery of the winding assembly. The winding assembly is connected to a transmission mechanism and is configured such that the rotation of the winding assembly is synchronized with the movement of the transmission mechanism.

[0016] Furthermore, the flexible component extends along the length direction, is capable of transmitting tensile force along the length direction, and is capable of bending in a direction at an angle to the length direction, wherein the flexible component is selected from at least one of rope, chain, and belt.

[0017] Furthermore, the adjustable bracket also includes a column, which is mounted on the base. The force-applying component includes a second transmission component, one end of which is located inside the column, and the other end of which is wound around a winding assembly. The winding assembly is connected to and rotates synchronously with a transmission wheel mounted on the base.

[0018] Furthermore, the adjustable bracket also includes a column mounted on the base and a panel assembly movably connected to the upper part of the column, wherein: one end of a force-applying member is functionally coupled to the panel assembly, and the position of the panel assembly relative to the base is adjustable in at least one second direction; when the panel assembly is operated in the forward direction of any second direction, thereby moving from its current position to a first target position relative to the base, the first end of the force-applying member is wound around a winding assembly for an increased length; when the panel assembly is operated in the reverse direction of any second direction, thereby moving from its current position to a second target position relative to the base, the first end of the force-applying member is wound around a winding assembly for a decreased length; at least one second direction includes a lifting direction and / or a tilting direction; the panel assembly is used to mount a display device, and the height and / or tilt position of the panel assembly relative to the column is adjustable.

[0019] Furthermore, the panel assembly includes a lifting assembly, a tilting assembly, and a mounting panel, wherein: the lifting assembly includes a first mounting member and a second mounting member connected to the first mounting member, the first mounting member being disposed within a column, and the second mounting member extending from the column; the tilting assembly includes a third mounting member and a fourth pulley disposed on the third mounting member, the third mounting member being connected to the mounting panel, and the third mounting member and the second mounting member being pivotally connected at a pivot point; a force-applying member passes around the fourth pulley, and when in a state of force equilibrium, the force-applying member supports the fourth pulley to maintain the posture of the mounting panel; one end of the force-applying member is connected to the lifting assembly and is capable of moving with the lifting assembly.

[0020] Furthermore, a first pulley is provided on the column, a second pulley is provided on the base, and a third pulley is provided on the lifting assembly. The force-applying component passes around the first, second, and third pulleys. The first and second pulleys are used to define a first extension direction of the force-applying component located within the column, and the third and fourth pulleys are used to define a second extension direction of the force-applying component located outside the column. There is an angle between the first and second extension directions. A guide portion extending along the height direction is provided inside the column, and a first mounting component is provided on the guide portion and can move up and down along the guide portion. A through slot is provided on the column, through which the second mounting component and the force-applying component pass out of the column.

[0021] Furthermore, the panel assembly includes a lifting assembly and a mounting panel, wherein: the lifting assembly includes an inner mounting assembly and an outer mounting assembly, the inner mounting assembly further includes a first mounting member disposed inside the column and an inner adsorption part disposed on the first mounting member, the outer mounting assembly further includes a second mounting member sleeved outside the column and an outer adsorption part disposed on the second mounting member, wherein the inner adsorption part and the outer adsorption part cooperate through magnetic force so that the outer mounting assembly can follow the inner mounting assembly to move along the column; when the panel assembly is in a suspended state, the inner adsorption part and the outer adsorption part keep the panel assembly in position relative to the column.

[0022] Furthermore, a first pulley is provided on the column, and a second pulley is provided on the base. The force-applying component passes around the first and second pulleys. The first and second pulleys are used to limit the first extension direction of the force-applying component located within a portion of the column. A limiting component is also provided on the column. The limiting component is located below the lifting assembly and is used to limit the extreme position of the descent of the lifting assembly.

[0023] By applying the technical solution of this invention, multiple elastic elements work together to provide the required elastic force, which interacts with the force-applying element to achieve balance. When the force-applying element is connected to the adjustable object, the adjustable object can be suspended at the desired height or posture. The use of multiple elastic elements also offers advantages such as flexible layout and better adaptability. For example, the size of the balancing component is reduced to accommodate narrow installation spaces, allowing for a significant reduction in base thickness, thereby reducing the space occupied by the base in the height direction. Therefore, the base of the adjustable bracket in the above technical solution is particularly suitable for flat and narrow installation scenarios. Specifically, the force-applying element connects the mounting panel of the adjustable bracket and its external load to the balancing component, thus transmitting the gravity of the mounting panel and its external load, along with the external forces acting upon it, as a load force to the transmission mechanism. As a force transmission structure, the transmission mechanism connects the transmission component and the force-applying component, thereby realizing the transmission, direction or synthesis of force. When the force-applying component is operated, the force-applying component or elastic component can drive the transmission mechanism to move to the target position. At this position, the sum of the elastic forces generated by multiple elastic components is balanced with the load force applied by the force-applying component, so that the transmission mechanism and the force-applying component maintain a stable force state. Attached Figure Description

[0024] The accompanying drawings, which form part of this specification, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0025] Figure 1 A schematic diagram of the overall structure of the adjustable bracket of the present invention is shown;

[0026] Figure 2 A schematic diagram of the first state of the balancing assembly of an embodiment of the adjustable bracket of the present invention is shown;

[0027] Figure 3 A schematic diagram of the second state of the balancing assembly of an embodiment of the adjustable support of the present invention is shown;

[0028] Figure 4 A schematic diagram of the overall structure of the balancing assembly of an embodiment of the adjustable support of the present invention is shown;

[0029] Figure 5A schematic diagram of the first state of the balancing assembly of a second embodiment of the adjustable bracket of the present invention is shown;

[0030] Figure 6 A schematic diagram of the second state of the balancing assembly of a second embodiment of the adjustable bracket of the present invention is shown;

[0031] Figure 7 A schematic diagram of the first state of the balancing assembly of a third embodiment of the adjustable bracket of the present invention is shown;

[0032] Figure 8 A schematic diagram of the second state of the balancing assembly of a third embodiment of the adjustable bracket of the present invention is shown;

[0033] Figure 9 A schematic diagram of the internal structure of the balancing assembly in a first state of a third embodiment of the adjustable support of the present invention is shown.

[0034] Figure 10 A schematic diagram of the internal structure of the balancing assembly in a second state of a third embodiment of the adjustable support of the present invention is shown.

[0035] Figure 11 A cross-sectional view of the adjustable bracket of the present invention is shown;

[0036] Figure 12 It shows Figure 11 A magnified view of part A in the middle;

[0037] Figure 13 A schematic diagram of the overall structure of another adjustable bracket according to the present invention is shown;

[0038] Figure 14 It shows Figure 13 A magnified view of part B in the middle section;

[0039] Figure 15 A cross-sectional view of a first state of another adjustable bracket according to the present invention is shown;

[0040] Figure 16 It shows Figure 15 A magnified view of part C in the middle;

[0041] Figure 17 A cross-sectional view of a second state of another adjustable bracket according to the present invention is shown;

[0042] Figure 18 It shows Figure 17 A magnified view of part D in the middle;

[0043] Figure 19 A schematic diagram of another adjustable bracket according to the present invention is shown.

[0044] The above figures include the following reference numerals:

[0045] 1. Base; 111. First connecting seat; 112. Second connecting seat; 113. Bolt; 12. Second reversing element; 13. Through hole; 2. Balancing assembly; 21. Elastic element; 211. First elastic element; 212. Second elastic element; 22. Transmission mechanism; 221. Slide groove; 222. Rack; 223. Transmission wheel; 224. First reversing element; 23. Slide rail; 24. First transmission element; 241. First connecting part; 242. Second connecting part; 243. Rotation center; 244. Sliding connection 26. Winding assembly; 3. Column; 31. Second transmission component; 311. First connecting section; 312. Second connecting section; 32. First pulley; 33. Guide part; 4. Panel assembly; 41. Inner mounting assembly; 411. First mounting component; 412. Inner adsorption part; 413. First channel; 42. Outer mounting assembly; 421. Second mounting component; 422. Outer adsorption part; 423. Third pulley; 424. Fourth pulley; 43. Mounting panel; 441. Third mounting component; 442. Pivot point. Detailed Implementation

[0046] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0047] See also Figures 1 to 19 As shown, the present invention provides an adjustable support, including a base 1, a force-applying component, and a balancing component 2, wherein: the balancing component 2 includes a plurality of elastic elements 21 and a transmission mechanism 22, the transmission mechanism 22 is functionally coupled to the base 1 and can move relative to the base 1, the plurality of elastic elements 21 includes a first elastic element 211 and a second elastic element 212, each of the plurality of elastic elements 21 can apply a corresponding elastic force to the transmission mechanism 22; the force-applying component can apply a load force to the transmission mechanism 22, and when the force-applying component is operated, the force-applying component or the plurality of elastic elements 21 drives the transmission mechanism 22 to move to a target position; when the transmission mechanism 22 is in the target position, the elastic force and the load force are balanced, so that the transmission mechanism 22 and the force-applying component are in a state of force balance.

[0048] In the above technical solution, the force-applying component is also used to connect the adjustment object. When the position and / or posture of the adjustment object changes, the drive transmission mechanism 22 moves relative to the base 1, thereby changing the position of one end of the elastic component. At this time, the restoring force of the elastic component changes, and compensation is achieved through the cooperation of multiple elastic components 21. Thus, the balance can still be maintained after the state of the elastic component in the balance assembly changes, thereby maintaining the position and / or posture of the adjustment object.

[0049] Furthermore, in the aforementioned technical solution, the use of multiple flexible components allows for flexibility in the installation position and spatial layout of each component in the balancing assembly. For example, when the base 1 has a relatively thin structure, the components in the balancing assembly can be roughly unfolded along an installation plane to adapt to flat and narrow installation scenarios, thereby reducing the space occupied by the base 1 in the height direction. As another example, when the base 1 has a width limitation in a certain direction, the components in the balancing assembly can be selectively stacked vertically or arranged close together without interference, thus achieving a compact layout structure. Therefore, the balancing assembly has better adaptability to meet different spatial installation requirements.

[0050] Specifically, the base 1 provides a closed or semi-closed housing space and mounting foundation for the balancing assembly 2. The force-applying component connects the mounting panel of the adjustable bracket and its external load to the balancing assembly 2, thus transmitting the weight of the mounting panel and its external load, along with the external forces acting upon it, as a load force to the transmission mechanism 22. The transmission mechanism, as a force transmission structure, connects the transmission component and the force-applying component, thereby realizing the transmission, direction, or synthesis of forces. When the force-applying component is operated, the force-applying component or elastic component 21 can drive the transmission mechanism 22 to a target position. At this position, the sum of the elastic forces generated by the multiple elastic components 21 balances the load force applied by the force-applying component, maintaining a stable force state for the transmission mechanism 22 and the force-applying component.

[0051] In one embodiment of the present invention, the first end of the first elastic member 211 and the first end of the second elastic member 212 are both connected to the base 1, and the second end of the first elastic member 211 and the second end of the second elastic member 212 are both connected to the transmission mechanism 22; the base 1 is provided with a first connecting seat 111 and a second connecting seat 112, the first end of the first elastic member 211 is fixedly connected to the first connecting seat 111 or rotatably connected, and the first end of the second elastic member 212 is rotatably connected to the second connecting seat 112.

[0052] In the above technical solution, by adding an independent connecting seat structure to the base 1, the elastic elements such as the first elastic element 211 and the second elastic element 212 are no longer directly rigidly connected to the base, but are indirectly connected through the connecting seat. This allows the elastic elements to be given rotational freedom at the connection point while transmitting elastic force, enabling them to adapt to the position changes of the transmission mechanism 22. This ensures that the elastic force can be stably and accurately transmitted to the transmission mechanism 22. Through the transmission mechanism 22's transmission and synthesis of force, the elastic force and load force of the force-applying element can be precisely balanced during the movement, thereby improving the stability and positioning accuracy of the bracket adjustment.

[0053] In one embodiment of the present invention, a bolt 113 is provided on the first connecting seat 111, and the first end of the first elastic member 211 is connected to the first connecting seat 111 by the bolt 113. When the bolt 113 is rotated, the distance between the first end of the first elastic member 211 and the first connecting seat 111 increases or decreases, so as to change the elastic force provided by the first elastic member 211.

[0054] In some embodiments, the first connecting seat 111 is provided with a threaded hole, through which the bolt 113 passes and is threadedly engaged. When the bolt 113 rotates, the bolt 113 moves relative to the first connecting seat 111. One end of the bolt 113 is connected to the first elastic element 211, and the two are rotatably engaged. That is, when the bolt 113 rotates, the spring does not rotate with it. With this configuration, when the bolt 113 moves relative to the first connecting seat 111, the first end of the first elastic element 211 moves synchronously, changing the degree of tension or compression of the first elastic element 211, thereby changing the elastic force provided by the first elastic element 211.

[0055] In some embodiments, the first connecting seat 111 is provided with a connecting hole, through which the bolt 113 passes and can rotate relative to the first connecting seat 111 about its own axis. Simultaneously, the bolt 113 is axially confined within the first connecting seat 111, thus restricting the axial movement of the bolt 113 relative to the first connecting seat 111. The bolt 113 may optionally be configured with a first limiting portion and / or a second limiting portion. The first limiting portion may be located on a first side of the first connecting seat 111, and the second limiting portion may be located on a second side of the first connecting seat 111. It is readily understood that, for example, when the first elastic member 211 is a tension spring, only the first limiting portion may be configured to be located on the side of the first connecting seat 111 opposite to the first elastic member 211; when the first elastic member 211 is a compression spring, only the second limiting portion may be configured to be located on the side of the first connecting seat 111 closest to the first elastic member 211. One end of the bolt 113 is connected to the first elastic element 211, and the two are threaded together. When the bolt 113 rotates, the first end of the first elastic element 211 is driven to move along the axial direction of the bolt 113, thereby changing the degree of tension or compression of the first elastic element 211 and thus changing the elastic force provided by the first elastic element 211. The synchronous rotation of the first elastic element 211 and the bolt 113 can be restricted by connecting it to the transmission mechanism 22, or a limiting structure can be provided between the first elastic element 211 and the base 1 to restrict the synchronous rotation of the first elastic element 211 and the bolt 113.

[0056] In the above technical solution, the first end of the first elastic element 211 is connected to the first connecting seat 111 by a bolt 113. When the bolt 113 is rotated, the first end of the first elastic element 211 is displaced axially relative to the first connecting seat 111, thereby changing the preload length of the first elastic element 211 and adjusting the elastic force it generates. Since the second end of the first elastic element 211 is connected to the transmission mechanism 22, and the transmission mechanism 22 is functionally coupled to the base 1 and can move relative to the base 1, the elastic force output of the first elastic element 211 in a balanced state can be precisely controlled by adjusting the bolt position, so that it matches the load force applied by the force-applying component. Different load requirements can be adapted without replacing the elastic element, significantly improving the adjustment accuracy and applicability of the bracket. When the transmission mechanism 22 uses a chain, the first elastic element 211 transmits the force to the first transmission element 24 through the chain. Because the chain and transmission gear are accurately matched during transmission, the gear can limit the chain, preventing it from twisting and thus preventing the first elastic element 211 from rotating. However, when the transmission mechanism 22 uses a belt, the transmission wheel cannot stop the belt's torsional movement, causing the belt to easily twist during operation, resulting in uneven stress distribution and accelerated fatigue fracture. To avoid these problems, a separate limiting structure is needed to prevent belt twisting. This limiting structure can be achieved by setting a slide rail and a slider between the first elastic element 211 and the first connecting seat 111. On one hand, this can limit the twisting of the first elastic element 211, preventing the belt connected to it from twisting along with it. On the other hand, it can guide the extension and retraction of the first elastic element 211, allowing it to still adjust the output elastic force. Furthermore, components such as bolts can be used to allow relative rotation between the first elastic element 211 and the first connecting seat 111, eliminating the need for limiting structures like slide rails and sliders. This allows the first elastic element 211 to rotate in conjunction with the belt, thereby eliminating the belt's torsional force and preventing belt twisting. Specifically, the rotatable connection between the first elastic element 211 and the first connecting seat 111 can be achieved in two ways: first, one end of the bolt is threaded into the first connecting seat 111, and the other end is rotatably connected to the first elastic element 211; second, one end of the bolt is rotatably connected to the first connecting seat 111, and the other end is threaded into the first elastic element 211. Both methods allow for adjustment of the preload length of the first elastic element 211 via bolts, while also enabling the first elastic element 211 to rotate in conjunction with the belt to eliminate the belt's torsional force and prevent belt twisting, thus improving the stability and lifespan of the transmission mechanism 22.

[0057] In one embodiment of the present invention, the direction of the load force extends along a first direction; the direction of the elastic force applied by at least one of the plurality of elastic elements 21 extends along the first direction and is opposite to the direction of the load force; the direction of the elastic force applied by at least another elastic element 21 of the plurality of elastic elements 21 extends along the first direction and is the same as the direction of the load force.

[0058] In the above technical solution, by setting multiple elastic elements 21, at least one elastic element 21 applies an elastic force to the transmission mechanism 22 in the opposite direction to the load force, while at least another elastic element 21 applies an elastic force to the transmission mechanism 22 in the same direction as the load force. The two work together to ensure that the transmission mechanism 22 can maintain a dynamic balance between the elastic force and the load force in the first direction when the position or posture of the load changes, thus ensuring that the support can be stably suspended at any target position.

[0059] In one embodiment of the present invention, the transmission mechanism 22 includes a transmission chain or a transmission belt; a transmission wheel 223 is provided on the base 1, and the transmission chain or transmission belt is in transmission cooperation with the transmission wheel 223; or, the base 1 is provided with a transmission wheel 223 and a first reversing member 224, the transmission chain or transmission belt is in transmission cooperation with the transmission wheel 223, and the transmission chain or transmission belt passes around the first reversing member 224; the direction of the load force extends along a first direction, which is the length extension direction of the transmission mechanism.

[0060] In the above technical solution, the transmission mechanism 22 includes transmission elements such as a transmission chain or transmission belt. The transmission chain or transmission belt can connect the elastic element and the transmission element. A transmission wheel 223 is provided on the base 1. The transmission wheel 223 cooperates with the transmission chain or transmission belt to enable the force-applying element to transmit the load force to the first transmission element 24 through the transmission wheel 223 and the transmission mechanism 22. When the transmission mechanism 22 is further configured with a first reversing element 224, the transmission chain or transmission belt bypasses the first reversing element 224. This allows for flexible reversal of the direction of the elastic force without changing the coupling relationship between the elastic element 21 and the first transmission element 24, thereby optimizing the spatial layout of the overall structure and ensuring that the elastic element can provide sufficient elastic force within the limited internal space of the base 1 to achieve a force balance state under high load conditions, further improving the load range applicable to the balancing component.

[0061] It should be understood that when the transmission mechanism 22 is a transmission chain or transmission belt, it can transmit force along its length. At the same time, when it passes around a certain component, it is subjected to force in the shear direction and can bend. In this case, the first direction is not necessarily constant at different positions of the transmission mechanism 22. For example, when the transmission mechanism 22 is bent at the corner formed by passing around the transmission wheel 223 and the first reversing member 224, the first direction is circumferential at any position of the corner. The first direction is unchanged at any position of the straight section tensioned between the transmission wheel 223 and the first reversing member 224.

[0062] In one embodiment of the present invention, a transmission wheel 223 and a first reversing member 224 are provided on the base 1. One end of the transmission mechanism 22 passes around the transmission wheel 223 and is connected to the second elastic member 212. The other end of the transmission mechanism 22 passes around the first reversing member 224 and is connected to the first elastic member 211. When the transmission mechanism 22 includes a transmission chain, the transmission wheel 223 is a sprocket, and the first reversing member 224 is a sprocket, a pulley, or a tensioner with an arc-shaped guide surface. Alternatively, when the transmission mechanism 22 includes a transmission belt, the transmission wheel 223 is a gear, and the first reversing member 224 is a gear or a pulley. The transmission mechanism 22 meshes with the transmission wheel 223.

[0063] In the above technical solution, the transmission wheel 223 serves as the connection node between the force-applying component and the balancing component, transmitting the load force on the force-applying component to the transmission mechanism 22, ensuring that the load force and the balancing force can interact and achieve force balance. The first reversing component 224 is used to reverse the path at the other end of the transmission mechanism 22, allowing the first elastic component 211 to be placed in a more spacious area, thereby providing sufficient elastic force to achieve a force balance state, optimizing the internal spatial layout of the base 1, and increasing the load range applicable to the balancing component.

[0064] When the transmission mechanism 22 uses a transmission chain, the transmission wheel 223 can be a sprocket that matches the transmission chain, thereby achieving precise meshing transmission. The first reversing member 224 uses a sprocket, pulley, or tensioner with an arc-shaped guide surface to guide the transmission chain to turn and maintain its tension, thereby ensuring that the force of the second elastic member 212 can be stably and reliably transmitted to the first transmission member 24. When the transmission mechanism 22 uses a transmission belt, the transmission wheel 223 can be a gear that matches the transmission belt, and the two mesh together for transmission. The first reversing member 224 uses a gear or a pulley to guide the transmission belt to change direction. Specifically, when the first reversing member 224 uses a gear, the meshing transmission between the first reversing member 224 and the transmission belt can prevent the transmission belt from slipping, ensuring accurate and stable force transmission. When the first reversing member 224 uses a pulley, the smooth pulley surface and the transmission belt can reduce the friction between the transmission belt and the pulley. Compared with the gear and transmission belt connection, stress concentration can be avoided, thereby effectively reducing the probability of belt cracking and tooth wear. At the same time, the force of the first transmission member 24 is smoothly reversed along the transmission belt, thereby improving the service life and reliability of the first reversing member 224 and the transmission belt.

[0065] In one embodiment of the present invention, the transmission wheel 223 is disposed in the middle region of the base 1, and the first elastic member 211 and the second elastic member 212 are distributed at intervals on both sides of the transmission wheel 223, and the restoring forces generated by the first elastic member 211 and the second elastic member 212 are in different directions.

[0066] In the above technical solution, the structure enables the transmission wheel 223 to be subjected to the load force applied by the force-applying component, so that the first elastic element 211 and the second elastic element 212 can provide elastic counteracting forces in opposite directions from both sides, thereby effectively eliminating the off-center load or tilting phenomenon caused by the transmission mechanism 22 being subjected to force on one side, ensuring that the transmission chain or transmission belt runs smoothly on the transmission wheel 223, and improving the stability and response accuracy of the overall motion.

[0067] When the number of multiple elastic elements 21 is two, for example, when a first elastic element 211 and a second elastic element 212 are provided, the relationship between the first elastic force F1 applied by the first elastic element 211 to the transmission mechanism 22, the second elastic force F2 applied by the second elastic element 212 to the transmission mechanism 22, and the load force FL applied by the force-applying element to the transmission mechanism 22, in equilibrium, satisfies: F1 = FL + F2. For ease of understanding, the example of providing a first elastic element 211 and a second elastic element 212 is used for explanation. The force-applying element is used to provide support for the adjustment object. The load force FL originates from the adjustment object, and when the adjustment object remains unchanged without the action of external forces, the load force FL also remains unchanged. When the position or posture of the adjustment object changes, the force-applying element moves, and the transmission mechanism 22 also moves synchronously. At this time, the first elastic element 211 and the second elastic element 212 undergo elastic deformation, so that the ends of the two elastic elements connected to the transmission mechanism 22 produce corresponding displacements. Those skilled in the art will readily understand that when the first elastic element 211 and the second elastic element 212 undergo elastic deformation, the elastic restoring force they generate also changes accordingly. Thus, the first elastic force F1 and the second elastic force F2 applied to the transmission mechanism 22 also change synchronously. Among them, the magnitude of the change in the force values ​​of the first elastic force F1, which is opposite to the direction of the load force FL, and the second elastic force F2, which is in the same direction as the load force FL, is the same, so it can still satisfy: F1=FL+F2, thereby maintaining the state of force balance.

[0068] For example, when the user lifts the adjustable object, the load force FL decreases, breaking the original equilibrium state of the balancing mechanism. The force-applying component, transmission mechanism 22, and each elastic component all undergo corresponding displacement / movement. Once the target position is reached and the user is removed from the adjustable object, the load force FL recovers. At this point, the magnitude of the force changes between the elastic forces in different directions caused by the aforementioned displacement / movement is the same, restoring the equilibrium state. When the user presses down on the adjustable object, the load force FL increases, and the process is similar. Once the target position is reached and the user is removed from the adjustable object, the equilibrium state is restored. It is easy to understand that the adjustment action is not limited to lifting / pressing down. As long as the adjustment action introduces an external force applied by the user, and this external force changes the magnitude of the load force FL, the mechanical system of the balancing component 2 can undergo displacement / movement, and the balancing component 2 can restore its equilibrium state after the external force disappears.

[0069] The above exemplarily describes the operation when two elastic elements are provided. It should be understood that the number of elastic elements 21 can be set to more, for example, two parallel first elastic elements 211 and two parallel second elastic elements 212; or, more elastic elements 21 can be provided, and at least some of the elastic elements 21 are connected at one end to different positions of the transmission mechanism. This embodiment will not elaborate on the operation process of setting more than two elastic elements, and its principle is the same as that of setting two elastic elements. Among the various elastic forces applied to the transmission mechanism 22 by multiple elastic elements 21, the elastic forces opposite to the direction of the load force can form a first elastic resultant force Fs1, and the elastic forces in the same direction as the load force can form a second elastic resultant force Fs2. It is sufficient to satisfy that the various elastic forces applied to the transmission mechanism 22 by these spring elements and the load force applied to the transmission mechanism 22 by the force-applying elements can achieve force balance, that is, satisfy: Fs1=FL+Fs2.

[0070] In some embodiments, the elastic element is preferably a helical spring. It should be understood that in other embodiments, the elastic element may also be selected from other types of springs, or configured as a combination of multiple springs of the same type or different types of springs.

[0071] In some embodiments, the elastic element is preferably configured in a stretched state during operation, i.e., configured as a tension spring. In other embodiments, the elastic element may also be configured in a compressed state during operation, i.e., configured as a compression spring. It should be understood that the operating state of the elastic element correspondingly determines the direction of its restoring force, but this application does not limit this; furthermore, the restoring force generated by each elastic element may be the same as or different from the elastic force applied by the elastic element to the transmission mechanism 22, wherein the directions of the restoring force and the elastic force may be the same or different, and the magnitudes of the restoring force and the elastic force may be the same or different. For example, when the transmission mechanism 22 is configured to move along a straight line relative to the base 1, and an elastic element is arranged parallel to this straight line, and the restoring force generated by the elastic element is parallel to the straight line, the restoring force generated by the elastic element and the elastic force applied by the elastic element to the transmission mechanism 22 are in the same direction and have the same magnitude. When the aforementioned elastic element is arranged at an angle to the straight line, the restoring force generated by the elastic element and the elastic force applied by the elastic element to the transmission mechanism 22 are in different directions. In this case, the elastic force is a component of the restoring force. For example, when an elastic element is connected to the transmission mechanism 22 using a flexible connection, such as a chain or belt, the direction of the restoring force output by the elastic element along the transmission path can be changed. In this case, the elastic force and the restoring force are in different directions but have the same magnitude. When an elastic element is connected to the transmission mechanism 22 through a transmission component such as a rod structure, the direction and magnitude can be modulated by the lever arm formed by the rod, so that the magnitude and direction of the restoring force generated by the elastic element and the elastic force applied by the elastic element to the transmission mechanism 22 can be different. Thus, it is easy to understand that in the various deformable embodiments of this application, the connection method between each elastic element and the transmission mechanism 22 is not limited, and can be direct connection, indirect connection, transmission connection, or any other alternative method.

[0072] In one embodiment of the present invention, the balancing component 2 further includes a first transmission member 24, one end of which is connected to the transmission mechanism 22, and the other end of which is connected to the second elastic member 212. The first transmission member 24 can transmit the force of the second elastic member 212 to the transmission mechanism 22. When in a state of force balance, the torque of the second elastic member 212 acting on the first transmission member 24 is equal to and opposite in direction to the torque of the transmission mechanism 22 acting on the first transmission member 24.

[0073] In some embodiments, the first transmission member 24 is connected between the second elastic member 212 and the transmission mechanism 22, and transmits force between them. The end of the first transmission member 24 connected to the second elastic member 212 forms a first lever arm, and the end of the first transmission member 24 connected to the transmission mechanism 22 forms a second lever arm. Balance is achieved through these two lever arms, i.e., the force output by the second elastic member 212 is amplified. (Reference) Figures 7-10 The load force of the force-applying component is transmitted to the transmission mechanism 22. If the force-applying component is moved from the transmission mechanism 22 by the user's operation, the force can be transferred to the transmission mechanism 22. Figure 7 The status shown has switched to Figure 8 When the first elastic element 211 is further stretched, the first elastic force F1 increases. At this time, even if the stretching degree of the second elastic element 212 decreases, that is, the second elastic element 212 is in a state where... Figure 8 The corresponding state is relative to Figure 7 The corresponding state shortens, and the restoring force of the second elastic element 212 decreases slightly. However, with the force amplification effect of the aforementioned first transmission element 24, a balanced state can still be achieved. For the overall balancing mechanism, the restoring force of the second elastic element 212 is amplified after being transmitted through the first transmission element 24. Therefore, the second elastic force F2 applied to the transmission mechanism 22 also increases, thereby enabling the first elastic force F1 and the second elastic force F2 to increase simultaneously. Conversely, they can also decrease simultaneously.

[0074] In some embodiments, the number of elastic elements 21 is provided in multiple ways, and the number of elastic elements 21 in which the direction of the applied elastic force is the same as the direction of the load force can also be provided in multiple ways. For example, multiple second elastic elements 212 are provided, wherein multiple second elastic elements 212 can be selectively connected to the first transmission element 24, in which case these second elastic elements 212 can be regarded as an elastic element combination, or each second elastic element 212 can be selectively connected to the transmission mechanism 22 through a corresponding first transmission element 24.

[0075] Referring to the above embodiments, it should be understood that the specific structure and shape of the first transmission member 24 are not limited in the embodiments of this application. Besides the methods described in this application, any other structure with the same function can be used. It should be understood that when the user operates and thus changes the load force applied to the transmission mechanism 22 by the force-applying member, each elastic member will correspondingly move. If the elastic members providing elastic force opposite to the direction of the load force and the elastic members providing elastic force in the same direction as the load force exhibit the same trend of change in the aforementioned actions—that is, all further elongate or all further shorten—then the first transmission member 24, which realizes the amplification / reduction of force, is optional. That is, the first transmission member 24 can be provided or not provided. At the same time, it should be understood that when each elastic element generates a corresponding action, if the elastic elements that provide elastic force in the opposite direction to the load force and the elastic elements that provide elastic force in the same direction as the load force have different trends in the aforementioned action, then optionally, at least some elastic elements can be connected to the transmission mechanism 22 through the first transmission element 24. With this configuration, even if the restoring force of some elastic elements increases and the restoring force of other elastic elements decreases, it can be compensated by the force amplification / reduction mechanism, thereby satisfying the aforementioned relationship F1=FL+F2 or the aforementioned relationship Fs1=FL+Fs2.

[0076] In the above technical solution, when the balancing component 2 includes a first transmission component 24, and one end of the first transmission component 24 is connected to the transmission mechanism 22 and the other end is connected to the second elastic component 212, the elastic force generated by the second elastic component 212 is transmitted to the transmission mechanism 22 through the first transmission component 24 as a torque transmission medium. This makes the torque of the second elastic component 212 acting on the first transmission component 24 equal in magnitude and opposite in direction to the torque of the transmission mechanism 22 acting on the first transmission component 24 under the force balance state, thereby constructing a stable torque coupling balance mechanism, which significantly improves the stability and adjustment accuracy of the support at the target position. This structural design allows the elastic characteristics of the second elastic component 212 to be independently optimized through the geometry and installation position of the first transmission component 24. The same balance effect can be achieved without increasing the volume of the elastic component or increasing the material stiffness, thereby achieving the technical advantages of compact space and reduced cost.

[0077] In one embodiment of the present invention, the first transmission member 24 is hinged to the base 1 and forms a rotation center 243 at the hinge position. The first transmission member 24 includes a first connecting part 241 and a second connecting part 242. The first connecting part 241 is connected to the transmission mechanism 22, and the second connecting part 242 is connected to the second elastic member 212. The first connecting part 241, the second connecting part 242 and the rotation center 243 are triangularly distributed.

[0078] Alternatively, the first transmission member 24 can be a V-shaped structure, a triangular structure, or other polygonal structures. Alternatively, the first transmission member 24 can be a lever mechanism composed of connecting rods, or an existing force conversion mechanism composed of multi-links, such as a toggle mechanism, a four-bar linkage, etc.

[0079] In the above technical solution, the first transmission component 24 can be an integral structure or a linkage structure. Specifically, the first connecting part 241 and the second connecting part 242 form a V-shaped structure, a triangular structure, or other polygonal structures around the rotation center 243, or a lever mechanism composed of linkages. The main purpose is to amplify, reduce, or change the direction of the elastic force through the torque change formed by the geometric structure design or lever mechanism design, thereby forming a stable torque balance system. The elastic force generated by the second elastic component 212 is applied to the first transmission component 24 through the second connecting part 242 and then transmitted to the first connecting part 241 with the rotation center 243 as the fulcrum. The first connecting part 241 then accurately transmits the torque to the transmission mechanism 22, ensuring that the torque transmission path between the second elastic component 212 and the transmission mechanism 22 is stable and without deviation. This significantly improves the force balance accuracy of the transmission mechanism 22 at the target position, avoids balance failure or position drift caused by unstable lever arm or force transmission dispersion, and achieves a thin and light balance structure while ensuring constant force support.

[0080] In one embodiment of the present invention, the transmission mechanism 22 includes a slider, the direction of the load force extends along a first direction, and the trajectory of the transmission mechanism 22 relative to the base 1 is parallel to the first direction; wherein, a slide rail 23 is provided on the base 1, and the transmission mechanism 22 is slidably connected to the slide rail 23; or, a slide rail 23 is provided on the transmission mechanism 22, and the slide rail 23 is slidably connected to the base 1; one of the transmission mechanism 22 and the first connecting part 241 is provided with a groove 221, and the other of the transmission mechanism 22 and the first connecting part 241 is provided with a sliding connecting part 244. When the transmission mechanism 22 rotates, the sliding connecting part 244 can slide along the groove 221 and push the transmission mechanism 22 to move relative to the base 1; the slider is provided with a rack part 222, and the rack part 222 meshes with a transmission wheel 223 provided on the base 1, wherein the transmission wheel 223 is a gear.

[0081] In the above technical solution, the transmission mechanism 22 adopts a slider structure, and its motion trajectory is limited to a first direction parallel to the direction of the load force, ensuring the linearity and stability of the force transmission. A slide rail 23 is provided on the base 1, and the transmission mechanism 22 is connected to the slide rail 23 through a sliding fit, or the transmission mechanism 22 integrates the slide rail 23 itself and forms a sliding fit with the base 1, thereby achieving high-precision guidance and constraint of the linear motion of the transmission mechanism 22. Simultaneously, a matching groove 221 and a sliding connection part 244 are provided between the transmission mechanism 22 and the first connecting part 241. When the first transmission member 24 rotates about the rotation center 243 as the fulcrum, the sliding connection part 244 slides along the groove 221, converting the rotational motion into linear displacement of the transmission mechanism 22 along the first direction. Furthermore, the slider of the transmission mechanism 22 integrates a rack portion 222, and the transmission wheel 223 has a gear structure. The rack portion 222 meshes with the transmission wheel 223 mounted on the base 1. Through this meshing relationship, the rotational motion of the transmission wheel 223 driven by the force-applying component is converted into linear motion of the transmission mechanism 22, effectively suppressing displacement deviations and vibrations caused by structural loosening or gaps during transmission. Through the combined action of the above structures, the transmission mechanism 22 achieves precise positioning, smooth operation, and high-fidelity torque transmission during the rotation-linear conversion process, significantly improving the position control accuracy and motion reliability of the overall balance assembly 2.

[0082] In one embodiment of the present invention, the balancing component 2 further includes a winding component 26 rotatably disposed on the base 1, and the force-applying component is a flexible component, wherein the force-applying component is connected to the winding component 26, and a portion of the force-applying component can be wound around the outer periphery of the winding component 26; the winding component 26 is connected to the transmission mechanism 22 and is configured such that the rotation of the winding component 26 is synchronized with the movement of the transmission mechanism 22.

[0083] In the above technical solution, the winding assembly 26 is used to store or release the force-applying component. Simultaneously, the winding assembly 26, as a force transmission structure, can transmit the load force on the force-applying component to the transmission mechanism 22. When the force-applying component bears an external load, its flexible structure stores and releases displacement through the rotation of the winding assembly 26, avoiding the linear expansion and contraction space required by traditional rigid structures. The winding assembly 26 rotates under force, synchronously driving the transmission mechanism 22 to move relative to the base 1 to the target position. At this position, the elastic force applied by multiple elastic elements 21 balances the load force transmitted by the force-applying component. The flexible force-applying component maintains the force balance of the system due to the stability of the winding state. When the force-applying component is released from the load or adjusted, the winding assembly 26 rotates in the opposite direction, and the traction transmission mechanism 22 synchronously resets. While ensuring that the force-applying component can be retracted and extended from the winding assembly 26 along with the movement of the panel assembly 4, the overall structure, especially in the height direction, is significantly reduced in space.

[0084] In some embodiments, the winding component 26 is semi-circular or fan-shaped, thus forming an arcuate wall on the winding component 26. One end of the flexible component is fixed to the winding component 26 and can be wound up onto the winding component 26 along the arcuate wall. It is easy to understand that the winding component 26 can also be configured with other shapes. For example, a polygonal wall can be formed on the winding component 26, and the flexible component can be wound up onto the winding component 26 along the polygonal wall.

[0085] In one embodiment of the present invention, the flexible component extends along the length direction, is capable of transmitting tensile force along the length direction, and is capable of bending in a direction at an angle to the length direction, wherein the flexible component is selected from at least one of rope, chain, and belt.

[0086] In the above technical solution, the flexible component extends along its length and can transmit tensile force along that direction. Simultaneously, it possesses bending capability in directions at an angle to its length, allowing the flexible component to naturally conform to the curvature changes of the winding path when wound around the outer periphery of the winding component 26, avoiding interference or stress concentration caused by rigid structures. The flexible component is selected from at least one of rope, chain, and belt. Its material properties and structural form together ensure good flexibility and fatigue resistance during tensile force transmission. Combined with the synchronous rotation of the winding component 26, the force-applying component can adapt to multi-angle paths without additional guiding structures during movement, significantly reducing rigid constraints on the installation space, improving the overall mechanism's layout flexibility and movement reliability within limited spaces, while reducing wear and noise caused by structural rigidity, thus improving user experience and service life.

[0087] In one embodiment of the present invention, the adjustable bracket further includes a column 3, which is disposed on the base 1. The force-applying component includes a second transmission component 31, one end of which is disposed inside the column 3, and the other end of which is wound on a winding assembly 26. The winding assembly 26 is connected to and rotates synchronously with a transmission wheel 223 disposed on the base 1.

[0088] In the above technical solution, the column 3 is mounted on the base 1, and the force-applying component includes a second transmission component 31, one end of which is embedded in the inner cavity of the column 3, and the other end is wound around the outer periphery of the winding assembly 26. The movement path of the second transmission component 31 is constrained within the inner cavity of the column 3 and extends approximately along the axial direction (i.e., the height direction) of the column 3, so that it maintains stable guidance during extension and winding, avoiding deviation or winding disorder caused by the free swing of the flexible structure. When the force-applying component is subjected to external force, the second transmission component 31 moves axially along the inner cavity of the column 3, driving the winding assembly 26 to rotate synchronously. The winding assembly 26 is mechanically coupled to the transmission wheel 223. Synchronous rotation is achieved, and the transmission wheel 223 drives the transmission mechanism 22 to move to the target position. At this time, the elastic force generated by multiple elastic elements 21 is balanced with the load force transmitted by the second transmission element 31, so that the whole system is in a stable force state. By storing the second transmission element 31 in the inner cavity of the column 3 and directly connecting it to the winding assembly 26, the internal guidance and centralized storage of the force-applying element are realized, which effectively reduces the external space occupation, improves the structural compactness and motion reliability, and avoids the problems of easy wear and jamming when the traditional flexible components are exposed and wound. This enhances the stability and durability of the adjustable bracket in long-term use.

[0089] In some embodiments, the winding assembly 26 and the drive wheel 223 are coaxially mounted and rotate synchronously. It is readily understood that in other embodiments, the winding assembly 26 and the drive wheel 223 are spaced apart and indirectly connected by a transmission component such as gears, thus enabling them to rotate synchronously.

[0090] In some embodiments, the radius or width of the winding assembly 26 is greater than that of the drive wheel 223. Depending on the range of motion allowed by the installation space, the radius or width of the winding assembly 26 can be set to be several times greater than that of the drive wheel 223. In this way, when the rotation angles of the two are the same, the linear displacement of the wall of the winding assembly 26 that is in contact with the force-applying member to wind up the force-applying member in the circumferential direction is relatively large, and thus a larger length of the force-applying member can be wound up or released with a smaller angle change.

[0091] In one embodiment of the present invention, the adjustable bracket further includes a column 3 disposed on a base 1, and a panel assembly 4 movably connected to the upper part of the column 3, wherein: one end of a force-applying member is functionally coupled to the panel assembly 4, and the position of the panel assembly 4 relative to the base 1 is adjustable in at least one second direction; when the panel assembly 4 is operated in the forward direction of any second direction, thereby moving from its current position to a first target position relative to the base 1, the length of the first end of the force-applying member wound around the winding assembly 26 increases; when the panel assembly 4 is operated in the reverse direction of any second direction, thereby moving from its current position to a second target position relative to the base 1, the length of the first end of the force-applying member wound around the winding assembly 26 decreases; at least one second direction includes a lifting direction and / or a tilting direction; the panel assembly 4 is used to mount a display device, and the height position and / or tilt position of the panel assembly 4 relative to the column 3 is adjustable.

[0092] In the above technical solution, the column 3 on the base 1 provides a stable support structure for the panel assembly 4. The panel assembly 4 is installed on the upper part of the column 3 via a movable connection, allowing its position to be adjusted in the lifting or tilting direction. One end of the force-applying component is functionally coupled to the panel assembly 4. When the panel assembly 4 is operated and moved to the first target position in the lifting or tilting direction, the first end of the force-applying component is wound around the winding assembly 26. For example, when the user adjusts the height of the panel assembly to raise it or adjusts its tilt angle, the force-applying component moves around the fixed pulley at the top of the column towards the winding assembly and is wound and stored on the winding assembly 26. Conversely, when the panel assembly 4 is operated and moved to the second target position in the opposite direction, the first end of the force-applying component is released from the winding assembly 26. For example, when the user adjusts the height of the panel to lower it or adjusts its tilt angle in the opposite direction, the panel assembly 4 pulls the force-applying component outward from the winding assembly 26. After the user adjusts the panel to any height or tilt angle and maintains stability, the force-applying component transmits the load force of the panel assembly to the balancing component. The balancing force of the balancing component allows the panel assembly and its external devices, such as the display, to hover at any height or tilt angle. The transmission mechanism 22 automatically adjusts to a balanced position between the elastic force provided by multiple elastic elements 21 and the load force of the force-applying component, ensuring the panel assembly 4 remains stable at any adjusted height or tilt angle. This direct linkage mechanism between the change in winding length and the balance of elastic force significantly reduces the overall space occupied and lowers manufacturing costs, while simultaneously achieving reliable support and precise positioning of the panel assembly 4 for the display device.

[0093] In one embodiment of the present invention, a second reversing member 12 and a through hole 13 are also provided on the base 1. The base 1 is connected to the column 3 through the through hole 13. The second reversing member 12 can be a sprocket, a pulley or a tensioner with an arc-shaped guide surface. One end of the force-applying member is wound around the winding sleeve assembly, and the other end passes around the second reversing member 12 and enters the column 3 through the through hole 13, so that it can be connected to the panel assembly 4 provided on the column 3, ensuring that the load force generated by the panel assembly 4 can be smoothly transmitted to the balance assembly, thereby realizing the stepless suspension of the panel assembly 4 through the balance assembly.

[0094] In one embodiment of the present invention, the panel assembly 4 includes a lifting assembly, a tilting assembly, and a mounting panel 43, wherein: the lifting assembly includes a first mounting member 411 and a second mounting member 421 connected to the first mounting member 411, the first mounting member 411 being disposed inside a column, and the second mounting member 421 extending from the column 3; the tilting assembly includes a third mounting member 441 and a fourth pulley 424 disposed on the third mounting member 441, the third mounting member 441 being connected to the mounting panel 43, and the third mounting member 441 or the mounting panel 43 being pivotally connected to the second mounting member 421 at a pivot point 442; a force-applying member passes around the fourth pulley 424, and when in a state of force equilibrium, the force-applying member supports the fourth pulley 424 to maintain the posture of the mounting panel 43; one end of the force-applying member is connected to the lifting assembly and can move with the lifting assembly.

[0095] In the above technical solution, the panel assembly 4 can achieve multi-functional adjustment of the mounting panel 43 and the display device thereon through the lifting assembly and the tilt assembly. The first mounting member 411 is disposed inside the column 3, and the second mounting member 421 is connected to the first mounting member 411 and extends outward from the column 3, so that the lifting movement is completed inside the column 3, avoiding external interference. The third mounting member 441 in the tilt assembly is fixedly connected to the mounting panel 43 and rotatably connected to the second mounting member 421 through a pivot point 442, allowing the mounting panel 43 to independently adjust its tilt angle while maintaining its lifting state. The force-applying component passes around the fourth pulley 424, with one end connected to the lifting assembly and moving synchronously with the second mounting component 421. When the force-applying component is subjected to force, its tension is redirected through the fourth pulley 424 and applied to the third mounting component 441, ensuring that the tension path of the force-applying component remains stable during the lifting process and is not affected by pitch rotation. During pitch adjustment, the third mounting component 441 rotates around the pivot point 442, and the force-applying component adjusts its direction by sliding through the fourth pulley 424, maintaining the force balance relationship with the transmission mechanism 22. Thus, without increasing the complexity of the force-applying component, the decoupled adjustment of the two degrees of freedom of lifting and pitch is achieved, improving the adjustment accuracy and force balance stability.

[0096] In one embodiment of the present invention, a first pulley 32 is provided on the column 3, a second pulley is provided on the base 1, and a third pulley 423 is provided on the lifting assembly. The force-applying member passes around the first pulley 32, the second pulley, and the third pulley 423. The first pulley 32 and the second pulley are used to define a first extension direction of the force-applying member located in a portion inside the column, and the third pulley 423 and the fourth pulley 424 are used to define a second extension direction of the force-applying member located in a portion outside the column. There is an angle between the first extension direction and the second extension direction. A guide portion 33 extending along the height direction is provided inside the column 3. A first mounting member 411 is provided on the guide portion 33 and can move up and down along the guide portion 33. A through groove is provided on the column 3, and the second mounting member 421 and the force-applying member pass through the through groove and exit the column 3.

[0097] In the above technical solution, the first pulley 32 on the column 3 and the second pulley on the base 1 together define the first extension direction of the force-applying component located inside the column 3, so that the force-applying component is stably guided along a preset path inside the column 3, avoiding increased friction and stress concentration caused by path deviation. At the same time, the third pulley 423 on the lifting assembly and the fourth pulley 424 on the pitch assembly work together to define the second extension direction of the force-applying component located outside the column 3. An angle is formed between the first extension direction and the second extension direction, so that the force-applying component can smoothly turn when passing through the through groove on the column 3, effectively mitigating wear and tension changes caused by sudden changes in direction. The guide part 33 provided along the height direction inside the column 3 provides precise linear guidance for the first mounting part 411, ensuring that it maintains a stable posture during lifting and avoiding swaying. The second mounting component 421 and the force-applying component pass through the column 3 via a slot, thereby enabling them to connect with the lifting and / or pitching components located outside the column 3. When the adjustable bracket is equipped with both lifting and pitching adjustment components, the same force-applying component passes through the column 3 via the slot and is connected in series with the lifting and pitching adjustment components. The overall structure achieves the adjustment of the panel assembly height and pitch angle while maintaining the dynamic balance between elastic force and load force through the same force-applying component, allowing the panel assembly to be suspended at any height and pitch angle position, significantly improving the stability, durability and control accuracy of the system operation.

[0098] In some embodiments, the guide portion 33 is a guide rod fixed inside the column 3, extending along the height direction, and spaced apart from the inner wall of the column 3. The first mounting member 411 is slidably engaged with the guide rod or slidably fitted onto the outer side of the guide rod. In other embodiments, the guide portion 33 is a guide rail fixed to the inner wall of the column 3, extending along the height direction, and the first mounting member 411 is slidably engaged with the guide rail. In still other embodiments, the guide portion 33 may also be formed by the inner wall of the column 3, with the first mounting member 411 slidably engaged with the inner wall of the column 3 in the height direction.

[0099] In one embodiment of the present invention, the panel assembly 4 includes a lifting assembly and a mounting panel 43, wherein: the lifting assembly includes an inner mounting assembly 41 and an outer mounting assembly 42, the inner mounting assembly 41 further includes a first mounting member 411 disposed inside the column 3 and an inner adsorption part 412 disposed on the first mounting member 411, the outer mounting assembly 42 further includes a second mounting member 421 sleeved outside the column 3 and an outer adsorption part 422 disposed on the second mounting member 421, wherein the inner adsorption part 412 and the outer adsorption part 422 cooperate by magnetic force so that the outer mounting assembly 42 can follow the inner mounting assembly 41 to move along the column 3; when the panel assembly 4 is in a suspended state, the inner adsorption part 412 and the outer adsorption part 422 keep the panel assembly 4 in a position relative to the column 3.

[0100] In the above technical solution, the inner mounting component 41 and the outer mounting component 42 of the column 3 can be connected in a non-contact manner through magnetic attraction. The synchronous lifting of the inner and outer transmission structures of the column 3 can be achieved without machining through slots on the column body. This solution significantly simplifies the manufacturing process of the column 3 and improves the overall structural integrity and aesthetic appearance of the product. Specifically, the inner mounting component 41 further includes a first mounting member 411 disposed inside the column 3 and an inner adsorption part 412 disposed on the first mounting member 411. The outer mounting component 42 further includes a second mounting member 421 sleeved outside the column 3 and an outer adsorption part 422 disposed on the second mounting member 421. The first mounting member 411 is used to provide a mounting base for the inner adsorption part 412, and the second mounting member 421 is used to provide a mounting base for the outer adsorption part 422. The inner adsorption part 412 and the outer adsorption part 422 are attracted and cooperate with each other through magnetic force, so that the outer mounting component 42 can move along the column 3 with the inner mounting component 41. When the panel component 4 is in a suspended state, the adsorption cooperation of the inner adsorption part 412 and the outer adsorption part 422 keeps the panel component 4 in a position relative to the column 3.

[0101] In one embodiment of the present invention, a first pulley 32 is provided on the column 3, and a second pulley is provided on the base 1. The force-applying member passes around the first pulley 32 and the second pulley. The first pulley 32 and the second pulley are used to limit the first extension direction of the force-applying member located in a portion of the column. A limiting member is also provided on the column 3. The limiting member is located below the lifting assembly and is used to limit the extreme position of the descent of the lifting assembly.

[0102] In the above technical solution, a first pulley 32 is provided on the column 3, and a second pulley is provided on the base 1. The force-applying component passes around the first pulley 32 and the second pulley, so that the first extension direction of the force-applying component inside the column 3 is precisely constrained. This avoids the offset, entanglement, or uneven force caused by the free extension of the force-applying component during movement, thereby significantly improving the stability and reliability of force transmission. At the same time, a limit component is also provided on the column 3, and the limit component is located below the lifting component. When the lifting component moves downward to the limit position due to gravity or external force, the limit component can directly block its continued downward movement, effectively preventing the lifting component from causing impact damage or structural failure to the transmission mechanism 22, elastic component 21, or support structure due to overtravel. This ensures that the entire system operates stably within the safe travel range, achieving dual protection of the controllability of the force transmission path of the force-applying component and the precise limitation of the travel of the lifting component.

[0103] In one embodiment of the present invention, a first pulley 32 is provided at the top of the column 3, and the force-applying component includes a second transmission component 31, which is wound around the first pulley 32. The second transmission component 31 includes a first connecting section 311 located on one side of the first pulley 32 and a second connecting section 312 located on the other side of the first pulley 32. At least one passageway is provided on the first mounting component 411, and the first connecting section 311 can pass through the passageway to the first mounting component 411 and be connected to the balancing component 2. The end of the second connecting section 312 away from the first pulley 32 is fixedly connected to the first mounting component 411. The panel assembly 4 is used to install a display device.

[0104] In the above technical solution, a first pulley is provided at the top of the column, and the force-applying component includes a second transmission component. The second transmission component is wound around the first pulley to form a surrounding structure. The second transmission component includes a first connecting section located on one side of the first pulley and a second connecting section located on the other side of the first pulley. At least one passageway is provided on the first mounting component, so that the first connecting section can pass through the first mounting component without obstruction and connect to the balancing component. The end of the second connecting section away from the first pulley is directly fixed to the first mounting component. Thus, when the first mounting component moves up and down along the column, the second connecting section synchronously drives the first mounting component to move. At the same time, the first connecting section transmits the balancing force applied by the balancing component to the first mounting component without interference through the passageway, ensuring that the load force and the balancing force always maintain dynamic balance during the lifting process. This structure avoids setting rigid transmission components or connecting mechanisms inside the column and relies entirely on a flexible transmission path to achieve force transmission. It does not damage the free sliding performance of the first mounting component in the column, nor does it affect the magnetic cooperation between the inner adsorption part and the outer adsorption part. This allows the panel component to maintain a stable position when suspended at any height, improving the simplicity, reliability and appearance integrity of the overall structure.

[0105] In one embodiment of the present invention, the passageway includes a first channel 413, and a first connecting segment 311 can pass through the first mounting member 411 and be connected to the balancing assembly 2 via the first channel 413.

[0106] In the above technical solution, the first channel 413 is a longitudinal through hole opened on the first mounting member 411, which is dedicated to guiding the first connecting section 311 of the balancing component 2 to extend upward from the inside of the column 3 and pass through the first mounting member 411 to reliably connect with the fixed end of the spring assembly. This channel allows the first connecting section 311 to be completely hidden inside the structure without having to pass through the outer wall of the column 3, maintaining the integrity and aesthetics of the outer surface of the column 3; at the same time, it provides a guiding path for flexible transmission components such as wire ropes, preventing them from deviating, tangling, or interfering with other components of the inner mounting component 41 during movement, ensuring that the spring tension is efficiently and without damage transmitted to the inner mounting component 41, and improving the transmission reliability and system response consistency.

[0107] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects: The base 1 provides a space for accommodating the balancing component 2 and a mounting foundation. The force-applying component can connect the mounting panel of the adjustable bracket and its external load to the balancing component 2, thus transmitting the gravity of the mounting panel and its external load, as well as the external force it receives, as a load force to the transmission mechanism 22. The transmission mechanism, as a force transmission structure, connects the transmission component and the force-applying component, thereby realizing the transmission, direction, or synthesis of force. When the force-applying component is operated, the force-applying component or the elastic component 21 can drive the transmission mechanism 22 to move to the target position. At this position, the sum of the elastic forces generated by the multiple elastic components 21 balances the load force applied by the force-applying component, so that the transmission mechanism 22 and the force-applying component maintain a stable force state.

[0108] Obviously, the embodiments described above are merely some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0109] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0110] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An adjustable bracket, characterized in that, The system includes a base (1), a force-applying component, and a balancing component (2), wherein: the balancing component (2) includes a plurality of elastic elements (21) and a transmission mechanism (22), the transmission mechanism (22) is functionally coupled to the base (1) and is movable relative to the base (1), the plurality of elastic elements (21) includes a first elastic element (211) and a second elastic element (212), each of the plurality of elastic elements (21) is capable of applying a corresponding elastic force to the transmission mechanism (22); the force-applying component is capable of applying a load force to the transmission mechanism (22), and when the force-applying component is operated, the force-applying component or the plurality of elastic elements (21) drives the transmission mechanism (22) to move to a target position; when the transmission mechanism (22) is at the target position, the elastic force is balanced with the load force, so that the transmission mechanism (22) and the force-applying component are in a state of force balance.

2. The adjustable bracket according to claim 1, characterized in that, The first end of the first elastic element (211) and the first end of the second elastic element (212) are both connected to the base (1), and the second end of the first elastic element (211) and the second end of the second elastic element (212) are both connected to the transmission mechanism (22); The base (1) is provided with a first connecting seat (111) and a second connecting seat (112). The first end of the first elastic member (211) is fixedly connected to the first connecting seat (111) or rotatably connected, and the first end of the second elastic member (212) is rotatably connected to the second connecting seat (112).

3. The adjustable bracket according to claim 2, characterized in that, A bolt is provided on the first connecting seat (111), and the first end of the first elastic element (211) is connected to the first connecting seat (111) by the bolt. When the bolt is rotated, the distance between the first end of the first elastic element (211) and the first connecting seat (111) increases or decreases, so as to change the elastic force provided by the first elastic element (211).

4. The adjustable bracket according to claim 1, characterized in that, The direction of the load force extends along the first direction; The direction of the elastic force applied by at least one of the plurality of elastic elements (21) extends along the first direction and is opposite to the direction of the load force; The direction of the elastic force applied by at least one of the plurality of elastic elements (21) extends along the first direction and is the same as the direction of the load force.

5. The adjustable bracket according to claim 1, characterized in that, The transmission mechanism (22) includes a transmission chain or a transmission belt; A transmission wheel (223) is provided on the base (1), and the transmission chain or the transmission belt is in transmission cooperation with the transmission wheel (223); or, the base (1) is provided with a transmission wheel (223) and a first reversing member (224), the transmission chain or the transmission belt is in transmission cooperation with the transmission wheel (223), and the transmission chain or the transmission belt bypasses the first reversing member (224). The load force extends along a first direction, which is the length extension direction of the transmission mechanism.

6. The adjustable bracket according to claim 5, characterized in that, When the base (1) is provided with a transmission wheel (223) and a first reversing member (224), one end of the transmission mechanism (22) passes around the transmission wheel (223) and is connected to the second elastic member (212), and the other end of the transmission mechanism (22) passes around the first reversing member (224) and is connected to the first elastic member (211). When the transmission mechanism (22) includes a transmission chain, the transmission wheel (223) is a sprocket, and the first reversing member (224) is a sprocket, a pulley, or a tensioner with an arc-shaped guide surface; or, when the transmission mechanism (22) includes a transmission belt, the transmission wheel (223) is a gear, and the first reversing member (224) is a gear or a pulley; The transmission mechanism (22) meshes with the transmission wheel (223).

7. The adjustable bracket according to claim 5, characterized in that, The transmission wheel (223) is disposed in the middle region of the base (1), and the first elastic element (211) and the second elastic element (212) are distributed on both sides of the transmission wheel (223) at intervals, and the restoring forces generated by the first elastic element (211) and the second elastic element (212) are in different directions.

8. The adjustable bracket according to claim 1, characterized in that, The balancing component (2) further includes a first transmission component (24), one end of which is connected to the transmission mechanism (22), and the other end of which is connected to the second elastic component (212). The first transmission component (24) can transmit the force of the second elastic component (212) to the transmission mechanism (22). When in a state of force balance, the torque of the second elastic component (212) acting on the first transmission component (24) is equal to and opposite in direction to the torque of the transmission mechanism (22) acting on the first transmission component (24).

9. The adjustable bracket according to claim 8, characterized in that, When one of the first elastic element (211) and the second elastic element (212) extends, the other shortens.

10. The adjustable bracket according to claim 8, characterized in that, The first transmission member (24) is hinged to the base (1) and forms a rotation center (243) at the hinge position. The first transmission member (24) includes a first connecting part (241) and a second connecting part (242). The first connecting part (241) is connected to the transmission mechanism (22), and the second connecting part (242) is connected to the second elastic member (212). The first connecting part (241), the second connecting part (242) and the rotation center (243) are triangularly distributed.

11. The adjustable bracket according to claim 10, characterized in that, The transmission mechanism (22) includes a slider, the direction of the load force extends along a first direction, and the trajectory of the transmission mechanism (22) relative to the base (1) is parallel to the first direction; The base (1) is provided with a slide rail (23), and the transmission mechanism (22) is slidably connected to the slide rail (23); or, the transmission mechanism (22) is provided with a slide rail (23), and the slide rail (23) is slidably connected to the base (1). One of the transmission mechanism (22) and the first connecting part (241) is provided with a sliding groove (221), and the other of the transmission mechanism (22) and the first connecting part (241) is provided with a sliding connecting part. When the transmission mechanism (22) rotates, the sliding connecting part can slide along the sliding groove (221) and push the transmission mechanism (22) to move relative to the base (1). The slider is provided with a rack part (222), and the rack part (222) meshes with a transmission wheel (223) provided on the base (1), wherein the transmission wheel (223) is a gear.

12. The adjustable bracket according to claim 1, characterized in that, The balancing component (2) further includes a winding component (26) rotatably disposed on the base (1). The force-applying component is a flexible component, wherein the force-applying component is connected to the winding component (26), and a portion of the force-applying component can be wound around the outer periphery of the winding component (26). The winding component (26) is connected to the transmission mechanism (22) and is configured such that the rotation of the winding component (26) is synchronized with the movement of the transmission mechanism (22).

13. The adjustable bracket according to claim 12, characterized in that, The flexible component extends along the length direction, is capable of transmitting tensile force along the length direction, and is capable of bending in a direction at an angle to the length direction, wherein the flexible component is selected from at least one of rope, chain, and belt.

14. The adjustable bracket according to claim 12, characterized in that, The adjustable bracket also includes a column (3), which is disposed on the base (1). The force-applying component includes a second transmission component (31), one end of which is disposed inside the column (3), and the other end of which is wound around the winding assembly (26). The winding assembly (26) is connected to and rotates synchronously with a transmission wheel (223) disposed on the base (1).

15. The adjustable bracket according to any one of claims 1 to 11, characterized in that, The adjustable bracket further includes a column (3) disposed on the base (1) and a panel assembly (4) movably connected to the upper part of the column (3). When the balancing assembly (2) further includes a winding assembly (26) rotatably disposed on the base (1), wherein: One end of the force-applying member is functionally coupled to the panel assembly (4), the position of the panel assembly (4) relative to the base (1) being adjustable in at least one second direction; when the panel assembly (4) is operated in the positive direction of any second direction, and thus moves from the current position to a first target position relative to the base (1), the length of the first end of the force-applying member wound around the winding assembly (26) increases; when the panel assembly (4) is operated in the opposite direction of any second direction, and thus moves from the current position to a second target position relative to the base (1), the length of the first end of the force-applying member wound around the winding assembly (26) decreases; The at least one second direction includes a vertical direction and / or a pitch direction; The panel assembly (4) is used to mount the display device, and the height position and / or pitch position of the panel assembly (4) relative to the column (3) are adjustable.

16. The adjustable bracket according to claim 15, characterized in that, The panel assembly (4) includes a lifting assembly, a tilting assembly, and a mounting panel (43), wherein: The lifting assembly includes a first mounting member (411) and a second mounting member (421) connected to the first mounting member (411). The first mounting member (411) is disposed inside the column, and the second mounting member (421) extends out from the column (3). The pitch assembly includes a third mounting member (441) and a fourth pulley (424) disposed on the third mounting member (441). The third mounting member (441) is connected to the mounting panel (43). The third mounting member (441) or the mounting panel (43) is pivotally connected to the second mounting member (421) at a pivot point (442). When the force-applying member passes around the fourth pulley (424) and is in the force balance state, the force-applying member supports the fourth pulley (424) to maintain the posture of the mounting panel (43); One end of the force-applying component is connected to the lifting assembly and can move with the lifting assembly.

17. The adjustable bracket according to claim 16, characterized in that, The column (3) is provided with a first pulley (32), the base (1) is provided with a second pulley, and the lifting assembly is provided with a third pulley (423). The force-applying member passes around the first pulley (32), the second pulley, and the third pulley (423). The first pulley (32) and the second pulley are used to define a first extension direction of the force-applying member located inside the column. The third pulley (423) and the fourth pulley (424) are used to define a second extension direction of the force-applying member located outside the column. There is an angle between the first extension direction and the second extension direction. The column (3) is provided with a guide part (33) extending along the height direction. The first mounting part (411) is mounted on the guide part (33) and can move up and down along the guide part (33). The column (3) has a through groove, through which the second mounting component (421) and the force-applying component pass out of the column (3).

18. The adjustable bracket according to claim 16, characterized in that, The panel assembly (4) includes a lifting assembly and a mounting panel (43), wherein: The lifting assembly includes an inner mounting assembly (41) and an outer mounting assembly (42). The inner mounting assembly (41) further includes a first mounting member (411) disposed inside the column (3) and an inner adsorption part (412) disposed on the first mounting member (411). The outer mounting assembly (42) further includes a second mounting member (421) sleeved outside the column (3) and an outer adsorption part (422) disposed on the second mounting member (421). The inner adsorption part (412) and the outer adsorption part (422) cooperate through magnetic force so that the outer mounting assembly (42) can follow the inner mounting assembly (41) to move along the column (3). When the panel assembly (4) is in a suspended state, the inner adsorption part (412) and the outer adsorption part (422) keep the panel assembly (4) in a position relative to the column (3).

19. The adjustable bracket according to claim 18, characterized in that, The column (3) is provided with a first pulley (32), the base (1) is provided with a second pulley, the force-applying member passes around the first pulley (32) and the second pulley, the first pulley (32) and the second pulley are used to define the first extension direction of the force-applying member located in a part of the column; The column (3) is also provided with a limiting member, which is located below the lifting assembly and is used to limit the extreme position of the lifting assembly's descent.