Lifting device

Abstract

The utility model provides a lifting device. The lifting device comprises a first mounting seat; a second mounting seat; the adjusting mechanism comprises a limiting structure and at least two elastic pieces, the limiting structure is provided with at least two limiting positions, and the number of the elastic pieces in limiting fit with the limiting structure is increased or decreased between every two adjacent limiting positions. The limiting structure is in limiting fit with the second end of at least one elastic piece, and under the action of external force, the first end of the elastic piece moves along with the second mounting base in the vertical direction, and the elastic piece is elongated or shortened, so that the second mounting base can be suspended on the first mounting base. According to the technical scheme, the lifting device can solve the problems that due to the fact that the numerical value of force provided by an adjusting mechanism of an existing displayer support is relatively fixed and the force value cannot be adjusted, the displayer support cannot be matched with displayers of different weights, and applicability is poor.

Description

Technical Field

[0001] The utility model relates to the technical field of mounting brackets, in particular to a lifting device. Background Art

[0002] With the development of science and technology, people have higher and higher requirements for the comfort of using electronic products such as computers and notebooks. For monitors, in order to meet the viewing needs of users, the monitors need to be installed on lifting brackets to facilitate the adjustment of the height of the monitors. In order to meet the height adjustment requirements, the monitor brackets in the prior art are generally provided with an adjustment mechanism for adjusting the height of the monitor. However, the force value that the adjustment mechanism can provide is relatively fixed, and the force value is not adjustable, resulting in the monitor bracket being unable to adapt to monitors of various weights and having poor applicability. Utility Model Content

[0003] The main purpose of the utility model is to provide a lifting device that can solve the problem that the force value that can be provided by the adjustment mechanism of the existing display stand is relatively fixed and the force value is not adjustable, resulting in the display stand being unable to adapt to a variety of monitors of different weights and having poor applicability.

[0004] In order to achieve the above-mentioned purpose, a lifting device is provided, including: a first mounting seat; a second mounting seat, movably arranged on the first mounting seat; an adjusting mechanism, including a limiting structure and at least two elastic members, the limiting structure is installed on the first mounting seat, the first end of each elastic member is connected to the second mounting seat, the second end of each elastic member can form a limiting fit with the limiting structure in the vertical direction, the limiting structure has at least two limiting positions, between two adjacent limiting positions, the number of elastic members forming a limiting fit with the limiting structure increases or decreases, when the limiting structure is in any limiting position, the limiting structure forms a limiting fit with the second end of at least one elastic member, and under the action of external force, the first end of the elastic member moves along the vertical direction with the second mounting seat, and the elastic member stretches or shortens, so that the second mounting seat can hover on the first mounting seat.

[0005] Furthermore, the limiting structure can be rotatably or slidably arranged on the first mounting seat to switch to different limiting positions.

[0006] Furthermore, the adjustment mechanism also includes an adjustment member, a first end of the adjustment member is rotatably connected to the top of the first mounting seat, and the limiting structure is installed at the second end of the adjustment member and can rotate with the adjustment member.

[0007] Furthermore, an in-position indication structure is provided on the adjusting member, and the in-position indication structure includes a mounting body and a telescopic structure arranged in the mounting body. At least two grooves are provided on the top of the first mounting seat, and the at least two grooves are arranged at intervals along the circumference of the adjusting member. The at least two grooves are arranged in a one-to-one correspondence with at least two limit positions, and the telescopic structure has an extended state inserted into the groove and a retracted state disengaged from the groove.

[0008] Furthermore, the adjustment mechanism also includes a rotation limit member, which is installed on the top of the first mounting seat. The limiting structure and the rotation limit member are both mounted on the outer circumference of the adjusting member. The limiting structure is located below the rotation limit member. Along the circumference of the adjusting member, at least a portion of the outer circumference of the adjusting member is rotationally matched with the inner circumference of the rotation limit member. A stop structure is provided at one end of the rotation limit member away from the limiting structure, and a stop block is provided on the adjusting member that can form a stop match with the stop structure, so that the adjusting member can rotate at a preset angle relative to the first mounting seat.

[0009] Furthermore, the adjustment mechanism also includes a rotation limit member, which is installed on the top of the first mounting seat. The limiting structure and the rotation limit member are both mounted on the outer circumference of the adjusting member. The limiting structure is located below the rotation limit member. Along the circumference of the adjusting member, at least a portion of the outer circumference of the adjusting member is rotationally matched with the inner circumference of the rotation limit member. A stop structure is provided at one end of the rotation limit member away from the limiting structure, and a stop block is provided on the mounting body that can form a stop match with the stop structure, so that the adjusting member can rotate at a preset angle relative to the first mounting seat.

[0010] Furthermore, the second mounting seat includes a first movable split body and a second movable split body connected to the first movable split body, at least one elastic member is provided on the first movable split body, and at least one elastic member is provided on the second movable split body. The second ends of all elastic members installed on the first movable split body are fixedly connected to the top of the first mounting seat, and at least one of all elastic members installed on the second movable split body can selectively form a limiting fit with the limiting structure.

[0011] Furthermore, the lifting device also includes a movable limiting member, and the second end of each elastic member installed on the second movable split body is connected to a movable limiting member, and the movable limiting member is constructed to be able to abut or connect with the limiting structure in the limiting position.

[0012] Furthermore, a side of the second movable body facing away from the first movable body is slidably matched with the first mounting seat.

[0013] Furthermore, the movable limiting member includes a first plate segment and a second plate segment, the second plate segment is bent relative to the first plate segment, the first plate segment is connected to the second end of the elastic member, the limiting structure is a plate structure, and when the limiting structure is in the limiting position, the second plate segment abuts against the plate structure to limit the second end of the elastic member in the vertical direction; and / or, a slideway is provided on the first mounting seat, the lifting device also includes a first locking member, the second end of the elastic member installed on the second movable split body is provided with a first connecting hole, and the movable limiting member is provided with a second connecting hole corresponding to the first connecting hole, the first locking member is penetrated in the slideway and passes through the first connecting hole and the second connecting hole in sequence to connect the elastic member and the movable limiting member.

[0014] The technical solution of the utility model is applied, and a first mounting seat, a second mounting seat and an adjustment mechanism are provided, and the adjustment mechanism includes a limiting structure and at least two elastic members, and the limiting structure has at least two limiting positions. When the limiting structure is in any limiting position, the limiting structure forms a limiting match with the second end of at least one elastic member in the vertical direction. At this time, under the action of the gravity of the display and the gravity of the second mounting seat, the first end of the elastic member moves with the movement of the second mounting seat, and the length of the elastic member changes and generates an elastic restoring force, and the elastic restoring force generated by the elastic member can be balanced with the gravity of the display, the gravity of the second mounting seat, and the friction between the second mounting seat and the first mounting seat, so that the display can be suspended at any position of the first mounting seat. Between two adjacent limiting positions, the number of elastic members that form a limiting match with the limiting structure increases or decreases, that is, when the limiting structure is in different limiting positions, the number of elastic members that form a limiting match with the limiting structure in the vertical direction is different, thereby enabling the lifting device to adapt to displays of different weights, and having high applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0016] In the figure:

[0017] Figure 1 An exploded view of a lifting device according to an embodiment of the present utility model is shown;

[0018] Figure 2 A partial structural schematic diagram of a lifting device according to an embodiment of the utility model is shown;

[0019] Figure 3 A partial structural schematic diagram of a lifting device according to an embodiment of the utility model is shown;

[0020] Figure 4A partial structural schematic diagram of a lifting device according to an embodiment of the utility model is shown;

[0021] Figure 5 An exploded view of a second mounting base according to an embodiment of the utility model is shown;

[0022] Figure 6 A partial structural schematic diagram of a lifting device according to an embodiment of the utility model is shown;

[0023] Figure 7 A partial structural schematic diagram of a lifting device according to an embodiment of the utility model is shown;

[0024] Figure 8 A partial structural schematic diagram of a lifting device according to an embodiment of the utility model is shown;

[0025] Fig. 9 A partial structural schematic diagram of a lifting device according to an embodiment of the utility model is shown;

[0026] Fig.10 The schematic diagram of the structure of the lifting device of the embodiment of the utility model is shown.

[0027] The above drawings include the following reference numerals:

[0028] 10. First mounting seat; 11. Groove; 12. Slideway; 13. Slide rail; 14. Top plate; 15. Slider; 16. Mounting groove; 17. Limiting groove; 18. Mounting plate section; 20. Second mounting seat; 21. First movable body; 22. Second movable body; 221. Fourth connecting hole; 30. Limiting structure; 40. Elastic member; 421. First connecting hole; 50. Adjusting member; 60. In-position indicating structure; 61. Mounting body; 611. Mounting cavity; 612. Columnar connecting part; 613. Indicating convex 1. a first plate segment; 2. a second plate segment; 3. a first locking member; 4. a bolt; 5. a screw; 6. a first sleeve; 7. a first pin; 8. a second sleeve; 9. a second pin; 10. a first slide; 11. a second slide; 12. a second slide; 13. a second slide; 14. a second slide; 15. a second slide; 16. a second slide; 17. a second slide; 18. a second slide; 19. a second slide; 20. a second slide; 21. a second slide; 22. a second slide; 23. a second slide; 24. a second slide; 25. a second slide; 26. a second slide; 27. a second slide; 28. a second slide; 29. ​​a second slide; 30. a second slide; 31. a second slide; 32. a second slide; 33. a second slide; 34. a second slide; 35. a second slide; 36. a second slide; 37. a second slide; 38. a second slide; 39. a second slide; 40. a second slide; 41. a second slide; 42. a second slide; 43. a second slide; 44. a second slide; 45. a second slide; 46. a second slide; 47. a second slide; 48. a second slide; 49. a first slide; 50. a second slide; 51. a second slide; 52. a second slide; 53. a second slide; 54. a second slide; 55. a first slide; 56. a first slide; 57. a second slide; 58. a second slide; 59. a first slide; 60. a first slide; 61. a second slide; 62. a telescopic structure; 70. a rotation limiter; 71. a stopper structure; 72. DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] See also Figures 1 to 10As shown, the utility model provides a lifting device, which includes: a first mounting seat 10; a second mounting seat 20, which is movably arranged on the first mounting seat 10; an adjusting mechanism, including a limiting structure 30 and at least two elastic members 40, the limiting structure 30 is installed on the first mounting seat 10, the first end of each elastic member 40 is connected to the second mounting seat 20, and the second end of each elastic member 40 can form a limiting fit with the limiting structure 30 in the vertical direction, the limiting structure 30 has at least two limiting positions, between two adjacent limiting positions, the number of elastic members 40 that form a limiting fit with the limiting structure 30 increases or decreases, when the limiting structure 30 is in any limiting position, the limiting structure 30 forms a limiting fit with the second end of at least one elastic member 40, and under the action of external force, the first end of the elastic member 40 moves along the vertical direction with the second mounting seat 20, and the elastic member 40 stretches or shortens, so that the second mounting seat 20 can hover on the first mounting seat 10.

[0031] In this embodiment, the second mounting seat 20 is used to mount the display 200. The first end of each elastic member 40 is wound on the second mounting seat 20, and after the second end of the elastic member 40 forms a limiting fit with the limiting structure 30 in the vertical direction, when the second mounting seat 20 moves relative to the first mounting seat 10, the first end of the elastic member 40 is released or rolled up, and at this time, the elastic member 40 is extended or shortened.

[0032] When the limiting structure 30 is in any limiting position, the limiting structure 30 forms a limiting fit with the second end of at least one elastic member 40 in the vertical direction. At this time, under the action of the gravity of the display and the gravity of the second mounting seat 20, the first end of the elastic member 40 moves with the movement of the second mounting seat 20, the length of the elastic member 40 changes and generates an elastic restoring force, and the elastic restoring force generated by the elastic member 40 can be balanced with the gravity of the display, the gravity of the second mounting seat 20, and the friction between the second mounting seat 20 and the first mounting seat 10, so that the display can be suspended at any position of the first mounting seat 10. Between two adjacent limiting positions, the number of elastic members 40 that form a limiting fit with the limiting structure 30 increases or decreases, that is, when the limiting structure 30 is in different limiting positions, the number of elastic members 40 that form a limiting fit with the limiting structure 30 in the vertical direction is different. From the above, it can be seen that the lifting device of the present application can change the number of elastic parts 40 that form a limiting fit with the limiting structure 30 in the vertical direction by adjusting the limiting position of the limiting structure 30, so that the lifting device can adapt to displays 200 of different weights and has high applicability.

[0033] In one embodiment, the elastic member 40 is a coil spring.

[0034] In one embodiment of the present invention, the limiting structure 30 is rotatably or slidably disposed on the first mounting seat 10 to switch to different limiting positions.

[0035] Through the above arrangement, the limiting structure 30 can be switched to different limiting positions.

[0036] It should be noted that when the limiting structure 30 is slidably set on the first mounting seat 10, at least two elastic members 40 are arranged in sequence along the sliding direction of the limiting structure 30, and the limiting structure 30 slides relative to the first mounting seat 10 to change the number of elastic members 40 that form a limiting fit with the limiting structure 30 in the vertical direction, that is, to achieve switching of different limiting positions.

[0037] See also Figures 1 to 10 As shown, in one embodiment of the utility model, the adjustment mechanism also includes an adjustment member 50, a first end of the adjustment member 50 is rotatably connected to the top of the first mounting seat 10, and the limiting structure 30 is installed at the second end of the adjustment member 50 and can rotate with the adjustment member 50.

[0038] Through the above arrangement, the limiting structure 30 can be rotated relative to the first mounting seat 10, and the limiting structure 30 can be switched to different limiting positions.

[0039] See also Figures 1 to 10 As shown, in one embodiment of the utility model, an in-position indication structure 60 is provided on the adjusting member 50, and the in-position indication structure 60 includes a mounting body 61 and a telescopic structure 62 arranged in the mounting body 61. At least two grooves 11 are provided on the top of the first mounting seat 10, and the at least two grooves 11 are arranged at intervals along the circumference of the adjusting member 50. The at least two grooves 11 are arranged in a one-to-one correspondence with at least two limit positions, and the telescopic structure 62 has an extended state of being inserted into the groove 11 and a retracted state of being disengaged from the groove 11.

[0040] In this embodiment, the adjustment member 50 rotates to drive the installation body 61 to rotate. When the installation body 61 rotates to the limit position, the telescopic structure 62 is inserted into the groove 11 and is in the extended state. The moment the telescopic structure 62 is inserted into the groove 11, a sound is emitted, which can serve as a sound prompt to remind the operator that the installation body 61 has been adjusted to the limit position. When the installation body 61 needs to be further rotated to the next limit position, the adjustment member 50 is continued to be rotated, and the telescopic structure 62 can be disengaged from the groove 11 and rotated with the installation body 61 until the telescopic structure 62 is inserted into the groove 11 corresponding to the next limit position. The telescopic structure 62 is also emitted when it is inserted into the groove 11 corresponding to the next limit position, prompting the operator that it has switched to another limit position.

[0041] See also Figures 1 to 10As shown, in one embodiment of the present invention, the installation body 61 has an installation cavity 611 , and the telescopic structure 62 is installed in the installation cavity 611 .

[0042] In one embodiment, the installation body 61 includes a columnar connection portion 612 and an indicating protrusion 613, one end of the indicating protrusion 613 is connected to the columnar connection portion 612, and the other end of the indicating protrusion 613 extends in a direction away from the columnar connection portion 612, and the telescopic structure 62 is installed in the indicating protrusion 613. Therefore, when the installation body 61 rotates to the limit position, the indicating protrusion 613 also rotates to the limit position, and the telescopic structure 62 is inserted into the groove 11 corresponding to the limit position. Through the above arrangement, not only can the sound prompt be realized when the limit position is reached, but the operator can also know the current limit position of the limit structure 30 according to the position of the indicating protrusion 613.

[0043] See also Figures 1 to 10 As shown, in one embodiment of the utility model, the adjustment mechanism also includes a rotation limit member 70, which is installed on the top of the first mounting seat 10, and the limiting structure 30 and the rotation limit member 70 are both sleeved on the outer periphery of the adjusting member 50, and the limiting structure 30 is located below the rotation limit member 70. Along the circumference of the adjusting member 50, at least a portion of the outer peripheral surface of the adjusting member 50 is rotationally matched with the inner peripheral surface of the rotation limit member 70, and a stop structure 71 is provided at one end of the rotation limit member 70 away from the limiting structure 30, and a stop block capable of forming a stop cooperation with the stop structure 71 is provided on the adjusting member 50, so that the adjusting member 50 can rotate relative to the first mounting seat 10 by a preset angle.

[0044] Through the above arrangement, the adjusting member 50 can rotate relative to the first mounting seat 10 by a preset angle, and the adjusting member 50 can drive the limiting structure 30 to rotate relative to the first mounting seat 10 by a preset angle, so that the limiting structure 30 switches to different limiting positions.

[0045] In one embodiment, at least a portion of the outer circumference of the adjusting member 50 is threadedly engaged with the inner circumference of the rotating limit member 70, so as to realize the rotation of the adjusting member 50 relative to the rotating limit member 70 through threaded engagement. The limiting structure 30 is fixedly sleeved on the outer circumference of the adjusting member 50. Since at least a portion of the outer circumference of the adjusting member 50 is threadedly engaged with the inner circumference of the rotating limit member 70, the adjusting member 50 can only rotate counterclockwise or clockwise to a certain angle relative to the rotating limit member 70. At the same time, the adjusting member 50 can only drive the limiting structure 30 to rotate to a certain angle.

[0046] See also Figures 1 to 10As shown, in one embodiment of the utility model, the adjustment mechanism also includes a rotation limit member 70, which is installed on the top of the first mounting seat 10, and the limiting structure 30 and the rotation limit member 70 are both sleeved on the outer periphery of the adjusting member 50, and the limiting structure 30 is located below the rotation limit member 70. Along the circumference of the adjusting member 50, at least a portion of the outer peripheral surface of the adjusting member 50 is rotationally matched with the inner peripheral surface of the rotation limit member 70, and a stop structure 71 is provided at one end of the rotation limit member 70 away from the limiting structure 30, and a stop block that can form a stop match with the stop structure 71 is provided on the mounting body 61, so that the adjusting member 50 can rotate relative to the first mounting seat 10 by a preset angle.

[0047] Through the above arrangement, the adjusting member 50 can rotate relative to the first mounting seat 10 by a preset angle, and the adjusting member 50 can drive the limiting structure 30 to rotate relative to the first mounting seat 10 by a preset angle, so that the limiting structure 30 switches to different limiting positions.

[0048] See also Figures 1 to 10 As shown, in one embodiment of the utility model, the first mounting seat 10 includes a top plate 14, which is arranged on the top of the first mounting seat 10, and the adjusting structure also includes a nut 102, a rotation limit member 70, a limit structure 30 and a nut 102, which are sequentially sleeved on the outer periphery of the adjusting member 50, and the limit structure 30 is located between the rotation limit member 70 and the nut 102, and a mounting groove 16 and a limit groove 17 are provided on the top plate 14, and a protrusion structure 72 is provided on the stop structure 71, the stop structure 71 is installed in the mounting groove 16, and the protrusion structure 72 is installed in the limit groove 17, and then the rotation limit member 70 and the limit structure 30 are limited by the nut 102 to prevent the rotation limit member 70 and the limit structure 30 from falling off from the adjusting member 50.

[0049] Through the above arrangement, the rotation limiting member 70 can be installed on the top plate 14 .

[0050] See also Figures 1 to 10 As shown, in one embodiment of the utility model, the second mounting seat 20 includes a first movable split body 21 and a second movable split body 22 connected to the first movable split body 21, at least one elastic member 40 is provided on the first movable split body 21, and at least one elastic member 40 is provided on the second movable split body 22. The second ends of all the elastic members 40 installed on the first movable split body 21 are fixedly connected to the top of the first mounting seat 10, and at least one of all the elastic members 40 installed on the second movable split body 22 can selectively form a limiting fit with the limiting structure 30.

[0051] In this embodiment, the second ends of all elastic members 40 installed on the first movable split body 21 are fixedly connected to the top of the first mounting seat 10. At this time, the lifting device can adapt to a display of a certain weight and realize the lifting and lowering of a display of a certain weight, and at least one of all elastic members 40 installed on the second movable split body 22 can selectively form a limiting fit with the limiting structure 30. At this time, by adjusting the limiting position of the limiting structure 30, the number of elastic members 40 on the second movable split body 22 that form a limiting fit with the limiting structure 30 in the vertical direction is changed, so that the lifting device can adapt to displays 200 of different weights.

[0052] See also Figures 1 to 10 As shown, in one embodiment of the utility model, the lifting device also includes a movable limiting member 80, and the second end of each elastic member 40 installed on the second movable split body 22 is connected to a movable limiting member 80, and the movable limiting member 80 is constructed to be able to abut or connect with the limiting structure 30 in the limiting position.

[0053] Through the above arrangement, the limiting structure 30 and the second end of the elastic member 40 can be matched in the vertical direction.

[0054] See also Figures 1 to 10 As shown, in one embodiment of the present invention, a side of the second movable body 22 facing away from the first movable body 21 is slidably matched with the first mounting seat 10 .

[0055] In this embodiment, the first movable split body 21 slides with the first mounting seat 10, the second movable split body 22 is connected to the first movable split body 21 on the side facing the first movable split body 21, and the second movable split body 22 slides with the first mounting seat 10 on the side facing away from the first movable split body 21, thereby ensuring the structural stability of the second mounting seat 20 when it slides relative to the first mounting seat 10.

[0056] See also Figures 1 to 10 As shown, in one embodiment of the present utility model, the lifting device further includes two bolts 91 , and the first movable body 21 is fixedly connected to the second movable body 22 via the two bolts 91 .

[0057] See also Figures 1 to 10 As shown, in one embodiment of the utility model, the lifting device also includes a screw 92, a slide rail 13 is provided on the first mounting seat 10, a slider 15 slidably matched therewith is provided on the slide rail 13, and the first movable split body 21 is connected to the slider 15 by the screw 92, so that the first movable split body 21 can slide relative to the first mounting seat 10.

[0058] See also Figures 1 to 10As shown, in one embodiment of the utility model, the movable limiting member 80 includes a first plate segment 81 and a second plate segment 82, the second plate segment 82 is bent relative to the first plate segment 81, the first plate segment 81 is connected to the second end of the elastic member 40, and the limiting structure 30 is a plate structure. When the limiting structure 30 is in the limiting position, the second plate segment 82 abuts against the plate structure to limit the second end of the elastic member 40 in the vertical direction.

[0059] Through the above arrangement, the limiting structure 30 and the second end of the elastic member 40 can be matched in the vertical direction.

[0060] See also Figures 1 to 10 As shown, in one embodiment of the utility model, a slide 12 is provided on the first mounting seat 10, the lifting device also includes a first locking member 90, the second end of the elastic member 40 installed on the second movable split body 22 is provided with a first connecting hole 421, and the movable limiting member 80 is provided with a second connecting hole 801 corresponding to the first connecting hole 421. The first locking member 90 is penetrated in the slide 12 and passes through the first connecting hole 421 and the second connecting hole 801 in sequence to connect the elastic member 40 and the movable limiting member 80.

[0061] In this embodiment, the first locking member 90 is disposed in the slideway 12 and passes through the first connection hole 421 and the second connection hole 801 in sequence, and can connect the movable limiting member 80 with the second end of the elastic member 40. In addition, the first locking member 90 is disposed in the slideway 12 and can slide along the length extension direction of the slideway 12. When the second end of the elastic member 40 connected to the movable limiting member 80 does not form a limiting match with the limiting structure 30 in the vertical direction, when the second movable split body 22 moves relative to the first mounting seat 10, the movable limiting member 80 can move together with the elastic member 40.

[0062] See also Figures 1 to 10 As shown, in one embodiment of the utility model, the first mounting seat 10 includes a mounting plate section 18, and the lifting device also includes a first slide 99, a second slide 100 and a connecting piece 101. The first slide 99, the second slide 100 and the connecting piece 101 are all provided with a third connecting hole, the connecting piece 101 is located between the first slide 99 and the second slide 100, the second slide 100 is located on the side of the mounting plate section 18 facing the second mounting seat 20, the first slide 99 and the connecting piece 101 are located on the side of the mounting plate section 18 away from the second mounting seat 20, and the first locking member 90 is sequentially penetrated by the third connecting hole on the first slide 99, the third connecting hole on the connecting piece 101, the slideway 12, the third connecting hole on the second slide 100, the first connecting hole 421 provided at the second end of the elastic member 40 and the second connecting hole 801 on the movable limiting member 80 to connect the elastic member 40 and the movable limiting member 80.

[0063] See also Figures 1 to 10 As shown, in one embodiment of the utility model, a fourth connecting hole 221 is provided on the second movable split 22, the first mounting seat 10 includes a mounting plate section 18, and the lifting device also includes a first slide 99, a second slide 100 and a connecting piece 101. The first slide 99, the second slide 100 and the connecting piece 101 are all provided with a third connecting hole, the connecting piece 101 is located between the first slide 99 and the second slide 100, the second slide 100 is located on the side of the mounting plate section 18 facing the second mounting seat 20, the first slide 99 and the connecting piece 101 are located on the side of the mounting plate section 18 away from the second mounting seat 20, and the first locking member 90 is sequentially penetrated by the third connecting hole on the first slide 99, the third connecting hole on the connecting piece 101, the slideway 12, the third connecting hole on the second slide 100 and the fourth connecting hole 221 on the second movable split 22 to achieve sliding cooperation between the second movable split 22 and the mounting plate section 18.

[0064] See also Figures 1 to 10 As shown, in one embodiment of the utility model, the number of elastic members 40 is three, and the lifting device further includes a first mounting structure and a second mounting structure, wherein one elastic member 40 is mounted on the first movable sub-body 21 through the first mounting structure. The remaining two elastic members 40 are mounted on the second movable sub-body 22 through the second mounting structure. Among them, the first mounting structure includes a first sleeve 95, a first pin shaft 96 and two washers 94, a washer 94 is provided at both ends of the first pin shaft 96 and is connected to the first movable sub-body 21 through a screw 92, the first sleeve 95 is sleeved on the outer periphery of the first pin shaft 96 and can rotate relative to the first pin shaft 96, and the first end of the elastic member 40 is wound around the outer periphery of the first sleeve 95. The second mounting structure includes a second sleeve 97, a second pin shaft 98 and two washers 94. A washer 94 is provided at both ends of the second pin shaft 98 and is connected to the second movable split body 22 by a screw 92. The second sleeve 97 is sleeved on the outer periphery of the second pin shaft 98 and can rotate relative to the second pin shaft 98. The first ends of the two elastic members 40 are respectively arranged on the opposite ends of the second sleeve 97.

[0065] See also Figures 1 to 10 As shown, in one embodiment of the present invention, the lifting device further includes a shell 201 , and the shell 201 is sleeved on the outer periphery of the first mounting seat 10 .

[0066] From the above description, it can be seen that the above embodiment of the utility model achieves the following technical effects: a first mounting seat, a second mounting seat and an adjustment mechanism are provided, the adjustment mechanism includes a limiting structure and at least two elastic members, and the limiting structure has at least two limiting positions. When the limiting structure is in any limiting position, the limiting structure forms a limiting match with the second end of at least one elastic member in the vertical direction. At this time, under the action of the gravity of the display and the gravity of the second mounting seat, the first end of the elastic member moves with the movement of the second mounting seat, the length of the elastic member changes and generates an elastic restoring force, and the elastic restoring force generated by the elastic member can be balanced with the gravity of the display, the gravity of the second mounting seat and the friction between the second mounting seat and the first mounting seat, so that the display can be suspended at any position of the first mounting seat. Between two adjacent limiting positions, the number of elastic members that form a limiting match with the limiting structure increases or decreases, that is, when the limiting structure is in different limiting positions, the number of elastic members that form a limiting match with the limiting structure in the vertical direction is different, thereby enabling the lifting device to adapt to displays of different weights, and having high applicability.

[0067] Obviously, the embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0068] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0069] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A lifting device, characterized in that: include: A first mounting seat (10); A second mounting seat (20) is movably arranged on the first mounting seat (10); The adjustment mechanism comprises a limiting structure (30) and at least two elastic members (40), wherein the limiting structure (30) is mounted on the first mounting seat (10), the first end of each elastic member (40) is connected to the second mounting seat (20), the second end of each elastic member (40) can form a limiting fit with the limiting structure (30) in the vertical direction, the limiting structure (30) has at least two limiting positions, and between two adjacent limiting positions, the number of the elastic members (40) forming a limiting fit with the limiting structure (30) increases or decreases, and when the limiting structure (30) is in any of the limiting positions, the limiting structure (30) forms a limiting fit with the second end of at least one of the elastic members (40), and under the action of an external force, the first end of the elastic member (40) moves along the vertical direction with the second mounting seat (20), and the elastic member (40) stretches or shortens, so that the second mounting seat (20) can be suspended on the first mounting seat (10).

2. The lifting device according to claim 1, characterized in that: The limiting structure (30) is rotatably or slidably arranged on the first mounting seat (10) to switch to different limiting positions.

3. The lifting device according to claim 2, characterized in that: The adjustment mechanism further comprises an adjustment member (50), a first end of the adjustment member (50) being rotatably connected to the top of the first mounting seat (10), and the limiting structure (30) being mounted on the second end of the adjustment member (50) and being capable of rotating with the adjustment member (50).

4. The lifting device according to claim 3, characterized in that: The adjusting member (50) is provided with an in-position indicating structure (60), the in-position indicating structure (60) comprising a mounting body (61) and a telescopic structure (62) arranged in the mounting body (61); at least two grooves (11) are arranged at intervals along the circumference of the adjusting member (50); at least two grooves (11) are arranged in a one-to-one correspondence with at least two limit positions; the telescopic structure (62) has an extended state of being inserted into the groove (11) and a retracted state of being released from the groove (11).

5. The lifting device according to claim 3, characterized in that: The adjustment mechanism further comprises a rotation limiting member (70), wherein the rotation limiting member (70) is mounted on the top of the first mounting seat (10), the limiting structure (30) and the rotation limiting member (70) are both sleeved on the outer circumference of the adjustment member (50), the limiting structure (30) is located below the rotation limiting member (70), and along the circumferential direction of the adjustment member (50), at least a portion of the outer circumferential surface of the adjustment member (50) is rotationally matched with the inner circumferential surface of the rotation limiting member (70), and a stop structure (71) is provided at one end of the rotation limiting member (70) away from the limiting structure (30), and a stop block capable of forming a stopper match with the stop structure (71) is provided on the adjustment member (50), so that the adjustment member (50) can rotate at a preset angle relative to the first mounting seat (10).

6. The lifting device according to claim 4, characterized in that: The adjustment mechanism further comprises a rotation limiting member (70), wherein the rotation limiting member (70) is mounted on the top of the first mounting seat (10), the limiting structure (30) and the rotation limiting member (70) are both sleeved on the outer circumference of the adjustment member (50), the limiting structure (30) is located below the rotation limiting member (70), and along the circumferential direction of the adjustment member (50), at least a portion of the outer circumferential surface of the adjustment member (50) is rotationally matched with the inner circumferential surface of the rotation limiting member (70), and a stop structure (71) is provided at one end of the rotation limiting member (70) away from the limiting structure (30), and a stop block capable of forming a stop match with the stop structure (71) is provided on the mounting body (61), so that the adjustment member (50) can rotate at a preset angle relative to the first mounting seat (10).

7. The lifting device according to any one of claims 1 to 6, characterized in that: The second mounting seat (20) comprises a first movable sub-body (21) and a second movable sub-body (22) connected to the first movable sub-body (21); at least one elastic member (40) is provided on the first movable sub-body (21); at least one elastic member (40) is provided on the second movable sub-body (22); the second ends of all the elastic members (40) installed on the first movable sub-body (21) are fixedly connected to the top of the first mounting seat (10); and at least one of all the elastic members (40) installed on the second movable sub-body (22) can selectively form a limiting fit with the limiting structure (30).

8. The lifting device according to claim 7, characterized in that: The lifting device further comprises a movable limiting member (80), the second end of each elastic member (40) mounted on the second movable split body (22) being connected to a movable limiting member (80), and the movable limiting member (80) being configured to be capable of abutting or connecting with the limiting structure (30) at the limiting position.

9. The lifting device according to claim 7, characterized in that: The side of the second movable sub-body (22) facing away from the first movable sub-body (21) is in sliding cooperation with the first mounting seat (10).

10. The lifting device according to claim 8, characterized in that: The movable limiting member (80) comprises a first plate segment (81) and a second plate segment (82), the second plate segment (82) being bent relative to the first plate segment (81), the first plate segment (81) being connected to the second end of the elastic member (40), the limiting structure (30) being a plate structure, and when the limiting structure (30) is in the limiting position, the second plate segment (82) abuts against the plate structure to limit the second end of the elastic member (40) in the vertical direction; and / or a slideway ( 12), the lifting device also includes a first locking member (90), the second end of the elastic member (40) mounted on the second movable body (22) is provided with a first connecting hole (421), the movable limiting member (80) is provided with a second connecting hole (801) corresponding to the first connecting hole (421), the first locking member (90) is inserted into the slideway (12) and passes through the first connecting hole (421) and the second connecting hole (801) in sequence to connect the elastic member (40) and the movable limiting member (80).

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