Lifting force value adjusting mechanism and display support

Abstract

The utility model discloses a lifting force value adjusting mechanism which comprises a sliding assembly capable of moving relatively and a tooth set component connected with the sliding assembly so as to adjust the lifting force of the sliding assembly. The tooth set component comprises a gear movably connected with the sliding assembly and a rack meshed with the gear and arranged in the moving direction of the sliding assembly. The gear abuts against the surface of the sliding assembly. According to the lifting force value adjusting mechanism, the gear and the rack meshed with the gear are arranged, so that the friction force of the sliding assembly can be adjusted by adjusting the rolling force value of the gear, the lifting force of the sliding assembly is adjusted, meanwhile, the gear rolls at a constant speed, the lifting function is smooth, and the display support comprises the lifting force value adjusting mechanism. The adjusting mode is simple, operation is convenient, the structure is simple, cost is low, the specification problem that the same support is matched with various screen weights is solved, the situation that the lifting function is not smooth due to friction force adjustment is solved, and the use function of the product is greatly expanded.

Description

Technical Field

[0001] The utility model belongs to the technical field of display brackets, and in particular relates to a lifting force value adjustment mechanism and a display bracket. Background Art

[0002] The monitor includes a monitor body and a monitor stand supporting the monitor body; currently in the industry, when more monitors are to be used with the same monitor stand, the lifting function will use a friction block to adjust the friction force. The friction block is usually made of plastic material. When the friction block is subjected to excessive force, the friction block will be quickly damaged, thereby causing the force value of the lifting function to exceed the specification; the structure of the friction block is usually to directly contact the column cavity under force. When the surface of the column cavity and the friction block are not parallel, the lifting function will be jammed. Utility Model Content

[0003] The purpose of the utility model is to provide a lifting force value adjustment mechanism and a display bracket to solve the above-mentioned technical problems. Gears and racks meshing with the gears are provided, so that the friction force of the sliding assembly can be adjusted by adjusting the rolling force value of the gears, thereby adjusting the lifting force of the sliding assembly. At the same time, the gears roll at a constant speed to make the lifting function smooth. This adjustment method is simple and easy to operate. Its structure is simple and the cost is low. It solves the problem of the same bracket being compatible with various screen weights and the problem of the lifting function not being smooth due to the adjustment of the friction force, thereby greatly expanding the product's usage function.

[0004] In order to achieve the above utility model purpose, the technical solution adopted by the utility model is as follows:

[0005] A lifting force value adjustment mechanism includes a relatively movable sliding component and a toothed component connected to the sliding component to adjust the lifting force of the sliding component; the toothed component includes a gear movably connected to the sliding component and a rack meshing with the gear and arranged along the moving direction of the sliding component. The gear is in conflict with the surface of the sliding component; the gear and the rack meshing with the gear are arranged, so that the friction of the sliding component can be adjusted by adjusting the rolling force value of the gear, thereby adjusting the lifting force of the sliding component, and the gear rolls at a uniform speed, so that the lifting function is smooth. This adjustment method is simple and easy to operate, and its structure is simple and low in cost. It solves the problem of the same bracket matching the specifications of various screen weights, and solves the problem of the lifting function not being smooth due to the adjustment of the friction force, which greatly expands the use function of the product.

[0006] Preferably, the gear assembly also includes an adjustment part for adjusting the rolling force value of the gear, and the adjustment part is arranged at one end of the gear. The adjustment part for adjusting the rolling force value of the gear is arranged, wherein the adjustment part is arranged at one end of the gear, and the resistance to the gear is adjusted by twisting the adjustment part, thereby adjusting the rolling force value of the gear. This adjustment method is simple and easy to operate, and its structure is simple and low in cost. It solves the problem of the same bracket matching multiple screen weight specifications, solves the problem of the lifting function not being smooth due to the adjustment of friction, and greatly expands the use function of the product.

[0007] Preferably, the adjustment part includes a connecting shaft connected to the sliding assembly, and a nut that is threadedly connected to the connecting shaft and adjusts the rolling force value of the gear by adjusting its torque; the connecting shaft passes through the gear, and the gear is arranged between the nut and the sliding assembly. The nut is in conflict with the gear; the gear force value is adjusted by turning the nut to adjust the lifting force of the sliding assembly, and the nut and the connecting shaft are in a threaded state, which has a self-locking function. After being turned and adjusted to the required rolling force value, the rolling force value of the gear is kept constant because the connecting shaft and the nut are in a threaded state, thereby improving the stability of the lifting operation. This adjustment method is simple and easy to operate, has a simple structure, and is low in cost. It solves the problem of the same bracket matching the specifications of various screen weights, solves the problem of the lifting function not being smooth due to the adjustment of friction, and greatly expands the use function of the product.

[0008] Preferably, the adjustment part also includes a flat gasket and a spring gasket arranged between the nut and the gear, and the nut, spring gasket, flat gasket, gear, and sliding assembly are arranged in sequence. The connecting shaft passes through the gear, flat gasket, and spring gasket; the flat gasket and the spring gasket are arranged between the nut and the gear, so that the interference state between the nut and the gear is more stable, and the adjusted gear rolling force value is more stable, avoiding the problem that the nut directly contacts the gear surface and the contact surface is small, which affects the stability of the gear rolling force value. This adjustment method is simple and easy to operate. It has a simple structure and low cost. It solves the problem of the same bracket matching the specifications of various screen weights, solves the problem of the lifting function not being smooth due to the adjustment of friction, and greatly expands the use function of the product.

[0009] Preferably, a slot is provided on the side of the gear facing the nut, and the flat gasket and spring gasket are provided in the slot. The slot is provided so that both the flat gasket and the spring gasket are provided in the slot, so as to avoid a large volume occupied by the adjustment part and improve the compactness of the overall structure.

[0010] A display stand including any of the above lifting force value adjustment mechanisms, wherein the sliding assembly includes a column and a pulley that can move relative to the column, one end of the tooth assembly is connected to the column, and the other end of the tooth assembly is connected to the pulley. A tooth assembly with adjustable rolling force value is arranged between the pulley and the column, and the rolling cooperation of the gear and the rack is adopted to increase the friction force of the lifting function. The gear rolls at a constant speed, so that the lifting function is smooth. By adjusting the torque of the nut, the rolling force value of the gear is increased. Since the cooperation between the gear and the rack is not direct surface-to-surface cooperation, the friction consumption rate is slow, and the life test of the lifting function can pass normally. This adjustment method is simple and easy to operate, and its structure is simple and low in cost. It solves the problem of the same bracket matching multiple screen weight specifications, solves the problem of the lifting function not being smooth due to the adjustment of friction, and greatly expands the use function of the product.

[0011] Preferably, the pulley is connected to a friction block, and the column is provided with a friction surface that contacts the friction block, and the friction surface is arranged along the moving direction of the pulley. The friction block is provided on one side of the tooth group component. Specifically, the friction block and the connecting shaft are fixed on the same plane of the pulley, and the axis of the shaft body of the connecting shaft faces the side of the friction block, and the tooth surface of the gear is in the same direction as the friction block, wherein the setting direction of the connecting shaft is perpendicular to the contact direction of the friction block. A tooth group component with adjustable rolling force value is provided, and a friction block is provided in coordination therewith, and a small gap is maintained between the friction block and the column, so that the lifting mechanism will not be tilted due to the rolling of the gear. Through the coordination of the gear and the rack, the situation in which the friction of the friction block is not smooth due to the change in the size of the inner cavity of the column is improved.

[0012] Preferably, the pulley is fixedly connected to a spring that causes the friction block to continuously contact the friction surface, and the end of the spring is connected to one side of the friction block;

[0013] The pulley is provided with a limit structure for limiting the travel of the friction block, and the limit structure includes a limit block and a limit groove provided below the limit block; the friction block includes a friction block body, an extension arm provided on one side of the friction block body and extending into the limit groove, and a limit portion is provided at the end of the extension arm for limiting the position by contacting with the inner surface of the limit block. The connecting shaft is fixedly provided on one of the limit blocks; the extension arms are provided in groups, wherein the friction block body is provided with a connection portion connected to the end of the spring between the extension arms. A spring is provided so that the friction block can continuously contact the friction surface, wherein the extension arm is provided in the limit groove so that the friction block can move outward along the inner cavity of the limit groove, and at the same time, a limit block and a limit portion that can contact each other for limiting are provided to limit the maximum travel of the friction block, thereby avoiding the problem of the friction block escaping from the pulley.

[0014] Preferably, a slide rail module is connected between the pulley and the column, and the slide rail module includes a first slide rail fixedly connected to the pulley, and a second slide rail slidably connected to the first slide rail and fixedly arranged in the column; the first slide rail and the second slide rail are both arranged along the extension direction of the column. The first slide rail is partially arranged in the second slide rail, and the two are slidably connected. The connecting surface of the first slide rail and the connecting surface of the friction block are perpendicular to each other; the first slide rail is fixedly connected to the pulley by a flat head screw. The second slide rail is fixedly connected to the column by a flat head screw. The first slide rail and the second slide rail that can slide relative to each other are provided to limit the moving direction of the pulley relative to the column, thereby improving the stability of the pulley movement.

[0015] Preferably, a through hole is provided on the surface of the column, and the through hole is provided on the moving route of the center of the gear. In this embodiment, the through hole is provided at the top, and can also be provided at other positions as required, and the torque of the nut can be adjusted by extending into the through hole and screwing the nut accordingly, thereby adjusting the rolling force value of the gear to achieve the effect of adjusting the lifting force value.

[0016] This application has achieved beneficial technical effects:

[0017] The utility model is provided with a gear and a rack meshing with the gear, so that the friction force of the sliding component can be adjusted by adjusting the rolling force value of the gear, thereby adjusting the lifting force of the sliding component, and at the same time the gear rolls at a uniform speed, so that the lifting function is smooth. This adjustment method is simple and easy to operate, and its structure is simple and the cost is low. It solves the problem of the same bracket being compatible with various specifications of screen weights, and solves the problem of the lifting function not being smooth due to the adjustment of the friction force, thereby greatly expanding the use function of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Shown is a schematic diagram of the structure of the utility model;

[0019] Figure 2 Shown is a schematic diagram of the assembly structure of the utility model;

[0020] Figure 3 Shown is a side structural schematic diagram of the assembly structure of the utility model;

[0021] Figure 4 Shown Figure 3 BB-direction cross-sectional structural diagram;

[0022] Figure 5 Shown Figure 3 AA section structural diagram;

[0023] Figure 6 Shown Figure 3 Schematic diagram of CC-section structure;

[0024] Figure 7 Shown is a schematic diagram of explosion decoupling of the utility model;

[0025] Figure 8 Shown is another exploded structure schematic diagram of the utility model;

[0026] Fig. 9 Shown is a schematic diagram of the structure of the gear set components;

[0027] Fig.10 Another schematic diagram of the structure of the gear set components is shown;

[0028] Fig.11 Shown is a perspective structural diagram of the pulley rising to the top of the column;

[0029] Fig.12 Shown is a perspective structural diagram of the pulley lowered to the bottom of the column.

[0030] Reference numerals

[0031] 1-sliding assembly; 21-gear; 22-rack; 23-adjusting part; 231-connecting shaft; 232-nut; 233 flat gasket; 234-spring gasket; 211-trough body; 11-column; 12-pulley; 3-friction block; 111-friction surface; 121-spring; 122-limiting block; 123-limiting groove; 31-friction block body; 32-extension arm; 33-limiting part; 4-slide rail module; 41-first slide rail; 42-second slide rail; 113-through hole; 114-upper anti-collision gasket; 115-lower anti-collision gasket. DETAILED DESCRIPTION

[0032] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0033] The technical solution of the utility model is described in detail below with specific embodiments.

[0034] Reference Figures 1 to 12, a lifting force value adjustment mechanism, including a relatively movable sliding component 1 and a toothed component connected to the sliding component 1 to adjust the lifting force of the sliding component 1; the toothed component includes a gear 21 movably connected to the sliding component 1, and a rack 22 meshing with the gear 21 and arranged along the moving direction of the sliding component 1. The gear 21 is in conflict with the surface of the sliding component 1; the gear 21 and the rack 22 meshing with the gear 21 are arranged, so that the friction force of the sliding component 1 can be adjusted by adjusting the rolling force value of the gear 21, thereby adjusting the lifting force of the sliding component 1, and the gear 21 rolls at a uniform speed, so that the lifting function is smooth. This adjustment method is simple and easy to operate, with a simple structure and low cost. It solves the problem of the same bracket matching the specifications of various screen weights, solves the problem of the lifting function not being smooth due to the adjustment of the friction force, and greatly expands the use function of the product.

[0035] The gear assembly also includes an adjustment portion 23 for adjusting the rolling force value of the gear 21, and the adjustment portion 23 is disposed at one end of the gear 21. The adjustment portion 23 for adjusting the rolling force value of the gear 21 is disposed, wherein the adjustment portion 23 is disposed at one end of the gear 21, and the resistance to the gear 21 is adjusted by twisting the adjustment portion 23, thereby adjusting the rolling force value of the gear 21. This adjustment method is simple and easy to operate, and has a simple structure and low cost. It solves the problem of the same bracket matching multiple screen weight specifications, solves the problem of the lifting function not being smooth due to the adjustment of friction, and greatly expands the use function of the product.

[0036] The adjustment part 23 includes a connecting shaft 231 connected to the sliding assembly 1, and a nut 232 which is threadedly connected to the connecting shaft 231 and adjusts the rolling force value of the gear 21 by adjusting its torque; the connecting shaft 231 passes through the gear 21, and the gear 21 is arranged between the nut 232 and the sliding assembly 1. The nut 232 is in conflict with the gear 21; the force value of the gear 21 is adjusted by turning the nut 232 to adjust the lifting force of the sliding assembly 1, and the nut 232 and the connecting shaft 231 are in a threaded state, and have a self-locking function. After turning and adjusting to the required rolling force value, the rolling force value of the gear 21 is kept constant due to the threaded state of the connecting shaft 231 and the nut 232, thereby improving the stability of the lifting operation. This adjustment method is simple and easy to operate, has a simple structure, and is low in cost. It solves the problem of the same bracket matching the specifications of various screen weights, solves the problem of the lifting function not being smooth due to the adjustment of friction, and greatly expands the use function of the product.

[0037] The adjustment part 23 also includes a flat gasket 233 and a spring gasket 234 arranged between the nut 232 and the gear 21. The nut 232, spring gasket 234, flat gasket 233, gear 21, and sliding assembly 1 are arranged in sequence. The nut 232, spring gasket 234, flat gasket 233, gear 21, and pulley are arranged in sequence. The connecting shaft 231 passes through the gear 21, the flat gasket 233, and the spring gasket 234; the flat gasket 233 and the spring gasket 234 are arranged between the nut 232 and the gear 21, so that the conflicting state between the nut 232 and the gear 21 is more stable, and the rolling force value of the adjusted gear 21 is more stable, so as to avoid the problem that the nut 232 directly contacts the surface of the gear 21 and the contact surface is small, which affects the stability of the rolling force value of the gear 21. This adjustment method is simple and easy to operate. It has a simple structure and low cost. It solves the problem of using the same bracket to match various screen weights and the problem of lifting and lowering problems caused by adjusting friction, greatly expanding the product's usage functions.

[0038] A slot body 211 is provided on one side of the gear 21 facing the nut 232, and the flat gasket 233 and the spring gasket 234 are provided in the slot body 211. The slot body 211 is provided so that both the flat gasket 233 and the spring gasket 234 are provided in the slot body 211, thereby avoiding a large volume occupied by the adjustment part and improving the compactness of the overall structure.

[0039] A display stand including the lifting force value adjustment mechanism as described above, wherein the sliding assembly 1 includes a column 11, a pulley 12 movable relative to the column 11, one end of the tooth assembly component is connected to the column 11, and the other end of the tooth assembly component is connected to the pulley 12. The gear 21 is arranged between the nut 232 and the pulley 12; the pulley 12 is arranged inside the column 11, specifically, the connecting shaft 231 is fixedly arranged on the pulley 12, and the rack 22 is fixedly arranged on the column 11 and arranged along the extension direction of the column 11, that is, the moving direction of the pulley 12. The rack 22 is fixedly connected to the column 11 by a flat screw; a tooth group component with adjustable rolling force value is arranged between the pulley 12 and the column 11, and the rolling cooperation of the gear 21 and the rack 22 is adopted to increase the friction force of the lifting function. The gear rolls at a uniform speed, so that the lifting function is smooth. By adjusting the torque of the nut 232, the rolling force value of the gear 21 is increased. Since the cooperation between the gear 21 and the rack 22 is not direct surface-to-surface cooperation, the friction consumption rate is slow, and the life test of the lifting function can be passed normally; this adjustment method is simple and easy to operate, and its structure is simple and low in cost. It solves the problem of the same bracket matching multiple screen weight specifications and the problem of the lifting function not being smooth due to the adjustment of friction force, which greatly expands the use function of the product.

[0040] The pulley 12 is connected to the friction block 3, and the column 11 is provided with a friction surface 111 that contacts the friction block 3, and the friction surface 111 is arranged along the moving direction of the pulley 12. The friction block 3 is arranged on one side of the gear assembly component, specifically, the friction block 3 and the connecting shaft 231 are fixed on the same plane of the pulley 12, and the axis of the connecting shaft 231 faces the side of the friction block 3, the tooth surface of the gear 21 is in the same direction as the friction block 3, and the setting direction of the connecting shaft 231 is perpendicular to the contact direction of the friction block 3. The friction surface 111 and the rack 22 are arranged on the same side of the column, and the column 11 is provided with a mounting groove 112 for mounting the rack 22 on one side of the friction surface 111, so that the end surface of the rack 22 is nearly flush with the friction surface 111. The gear set component with adjustable rolling force value is provided and the friction block 3 is provided in cooperation, the force value of the friction block 3 will not be adjusted greatly, and a small gap is maintained between the friction block 3 and the column, so that the lifting mechanism will not be tilted due to the rolling of the gear 21. Through the cooperation of the gear 21 and the rack 22, the friction of the friction block 3 caused by the change of the inner cavity size of the column 11 is improved.

[0041] The pulley 12 is fixedly connected to a spring 121 which enables the friction block 3 to continuously contact the friction surface 111, and the end of the spring 121 is connected to one side of the friction block 3;

[0042] The pulley 12 is provided with a limit structure for limiting the travel of the friction block 3, and the limit structure includes a limit block 122 and a limit groove 123 provided below the limit block 122; the friction block 3 includes a friction block body 31, an extension arm 32 provided on one side of the friction block body 31 and extending into the limit groove 123, and a limit portion 33 is provided at the end of the extension arm 32 for contacting with the inner surface of the limit block 122 for limiting. The connecting shaft 231 is fixedly provided on one of the limit blocks 122; the extension arms 32 are provided in groups, wherein the friction block body 31 is provided with a connection portion connected to the end of the spring 121 between the extension arms 32. Specifically, the limit block 122 and the limit groove 123 are symmetrically arranged in a group, and the limit block 122 and the limit groove 123 are symmetrically arranged with the position where the spring 121 is arranged as the axis of symmetry. The end of the spring 121 is connected to the side of the friction block 3 away from the friction surface 111. The spring 121 is arranged so that the friction block 3 can continuously resist the friction surface 111, wherein the extension arm 32 is arranged in the limit groove 123, so that the friction block 3 can move outward along the inner cavity of the limit groove 123. At the same time, the limit block 122 and the limit part 33 that can resist each other for limiting are arranged to limit the maximum stroke of the friction block 3 and avoid the problem of the friction block 3 falling out of the pulley 12.

[0043] The slide rail module 4 is connected between the pulley 12 and the column 11, and the slide rail module 4 includes a first slide rail 41 fixedly connected to the pulley 12, and a second slide rail 42 slidably connected to the first slide rail 41 and fixedly arranged in the column 11; the first slide rail 41 and the second slide rail 42 are both arranged along the extension direction of the column 11. The first slide rail 41 is partially arranged in the second slide rail 42, and the two are slidably connected. The connecting surface of the first slide rail 41 and the connecting surface of the friction block 3 are perpendicular to each other; the first slide rail 41 is fixedly connected to the pulley 12 by a flat head screw. The second slide rail 42 is fixedly connected to the column 11 by a flat head screw. The first slide rail 41 and the second slide rail 42 that can slide relative to each other are provided to limit the moving direction of the pulley 12 relative to the column 11, thereby improving the stability of the movement of the pulley 12.

[0044] The surface of the column 11 is provided with a through hole 113, and the through hole 113 is provided on the moving path of the center of the gear 21. In this embodiment, the through hole is provided at the top, and can also be provided at other positions as required, and the torque of the nut 232 can be adjusted by screwing the nut 232 correspondingly through the through hole 113, thereby adjusting the rolling force value of the gear 21, so as to achieve the effect of adjusting the lifting force value.

[0045] A constant force spring is arranged inside the pulley 12; an upper anti-collision gasket 114 and a lower anti-collision gasket 115 are arranged above and below the inside of the column 11 respectively; the upper anti-collision gasket 114 corresponds to the upper surface of the pulley 12, and the lower anti-collision gasket 115 corresponds to the lower surface of the pulley 12.

[0046] The adjustment mechanism of gear 21 and rack 22 is:

[0047] 1. The rack 22 is fixed on the column and fixed with screws.

[0048] 2. The gear 21 is fixed to the pulley 12 through the connecting shaft. A flat gasket and a spring gasket are assembled on the connecting shaft 231, and then a nut is fastened and fixed. The force value of the gear rolling is adjusted by adjusting the torque of the nut.

[0049] 3. When the lifting force value does not meet the specification, the nut torque can be directly adjusted through the through hole on the side of the column.

[0050] The rolling cooperation of the gear and the rack is used to increase the friction of the lifting function, and the gear rolls at a constant speed, so that the lifting function is smooth. And by adjusting the torque of the nut, the rolling force value of the gear is increased. Because the cooperation between the gear and the rack is not a direct surface-to-surface cooperation, the friction consumption rate is slow, and the life test of the lifting function can pass normally. At the same time, in order to make the lifting function smooth, the structure of the friction block is retained synchronously, the force value of the friction block will not be adjusted too much, and a small gap is maintained with the inner cavity of the column, so that the lifting mechanism will not be tilted due to the rolling of the gear. Through the cooperation of the gear and the rack, the friction of the friction block caused by the change of the size of the inner cavity of the column is improved.

[0051] This technical solution has a simple structure, is easy to operate, and is low in cost. It solves the problem of using the same bracket to match various screen weight specifications and the problem of lifting and lowering function problems caused by adjusting friction, greatly increasing the product's usability.

[0052] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

[0054] The above is a detailed description of an embodiment of a lifting force value adjustment mechanism and a display bracket provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiment is only used to help understand the core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A lifting force value adjustment mechanism, characterized in that: The invention comprises a relatively movable sliding assembly (1) and a tooth assembly component connected to the sliding assembly (1) to adjust the lifting force of the sliding assembly (1); the tooth assembly component comprises a gear (21) movably connected to the sliding assembly (1) and a rack (22) meshing with the gear (21) and arranged along the moving direction of the sliding assembly (1).

2. The lifting force value adjustment mechanism according to claim 1, characterized in that: The tooth assembly component further comprises an adjustment portion (23) for adjusting the rolling force value of the gear (21); the adjustment portion (23) is arranged at one end of the gear (21).

3. The lifting force value adjustment mechanism according to claim 2, characterized in that: The adjusting portion (23) comprises a connecting shaft (231) connected to the sliding assembly (1), and a nut (232) threadedly connected to the connecting shaft (231) and capable of adjusting the rolling force value of the gear (21) by adjusting the torque thereof; the connecting shaft (231) passes through the gear (21), and the gear (21) is arranged between the nut (232) and the sliding assembly (1).

4. The lifting force value adjustment mechanism according to claim 3, characterized in that: The adjustment part (23) further comprises a flat washer (233) and a spring washer (234) which are arranged between the nut (232) and the gear (21); the nut (232), the spring washer (234), the flat washer (233), the gear (21), and the sliding assembly (1) are arranged in sequence.

5. The lifting force value adjustment mechanism according to claim 4, characterized in that: A groove body (211) is provided on the side of the gear (21) facing the nut (232), and the flat plate gasket (233) and the spring gasket (234) are arranged in the groove body (211).

6. A display stand comprising a lifting force value adjustment mechanism as claimed in any one of claims 1 to 5, characterized in that: The sliding assembly (1) comprises a column (11) and a pulley (12) movable relative to the column (11); one end of the tooth assembly component is connected to the column (11), and the other end of the tooth assembly component is connected to the pulley (12).

7. The display stand according to claim 6, characterized in that: The pulley (12) is connected to the friction block (3), and the column (11) is provided with a friction surface (111) that contacts the friction block (3), and the friction surface (111) is arranged along the moving direction of the pulley (12).

8. The display stand according to claim 7, characterized in that: The pulley (12) is fixedly connected to a spring (121) which enables the friction block (3) to continuously contact the friction surface (111), and the end of the spring (121) is connected to one side of the friction block (3); The pulley (12) is provided with a limit structure for limiting the travel of the friction block (3), and the limit structure comprises a limit block (122) and a limit groove (123) arranged below the limit block (122); the friction block (3) comprises a friction block body (31), and an extension arm (32) arranged on one side of the friction block body (31) and extending into the limit groove (123), and a limit portion (33) is provided at the end of the extension arm (32) for contacting with the inner surface of the limit block (122) for limiting.

9. The display stand according to claim 8, characterized in that: A slide rail module (4) is connected between the pulley (12) and the column (11), and the slide rail module (4) comprises a first slide rail (41) fixedly connected to the pulley (12), and a second slide rail (42) slidably connected to the first slide rail (41) and fixedly arranged in the column (11); the first slide rail (41) and the second slide rail (42) are both arranged along the extension direction of the column (11).

10. The display stand according to claim 6, characterized in that: A through hole (113) is arranged on the surface of the column (11), and the through hole (113) is arranged on the moving route of the center of the gear (21).

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