Lifting device and electronic equipment

Abstract

The embodiment of the utility model discloses a lifting device and electronic equipment, the lifting device comprises a telescopic pipe, the telescopic pipe comprises an upper pipe and a lower pipe which can move relatively, the telescopic pipe is fixedly connected with the upper pipe through a sliding support, and the lower end of the sliding support extends into the lower pipe; the connecting lever is adopted to operate the clamping block to enable the clamping block to be meshed with the rack to achieve height locking, the buffering assembly is arranged to be connected between the sliding support and the lower pipe so as to buffer relative movement of the upper pipe and the lower pipe, and therefore the lifting adjusting mechanism is simple in structure, stable and reliable. And meanwhile, through the arrangement of the buffer assembly, the upper pipe can be prevented from rapidly falling under the action of gravity in the adjusting process, and the use safety and convenience are improved.

Description

[0001] This application claims priority to Chinese Patent Application No. 202520053277.4, filed on January 9, 2025, entitled "Lifting Device and Electronic Equipment", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This utility model relates to the field of electronic equipment technology, and more specifically, to a lifting device and an electronic device. Background Technology

[0003] With the rapid development of information technology, screen products such as computer monitors and televisions have become an indispensable part of people's daily lives. However, traditional screen installation methods are usually fixed and cannot meet users' needs for adjusting the viewing angle and height. To solve these problems, various screen products with height-adjustable stands have emerged on the market, allowing users to flexibly adjust the screen height according to personal preferences and specific application scenarios. However, some existing lifting devices have high structural complexity, leading to increased costs and inconvenience in maintenance. Therefore, providing a reliable and easy-to-use height adjustment device has become a development trend in the screen-related electronic product industry. Utility Model Content

[0004] In view of this, the present invention provides a lifting device and an electronic device, which helps to solve at least some of the problems existing in the prior art.

[0005] In a first aspect, this utility model provides a lifting device, including a telescopic tube, a sliding bracket, a locking assembly, and a buffer assembly; the telescopic tube includes an upper tube and a lower tube, the upper end of the lower tube being movably inserted into the upper tube; the sliding bracket is fixedly connected to the upper tube, the lower end of the sliding bracket extending into the lower tube; the locking assembly includes a rack, a connecting lever, and a locking block, the rack being fixed inside the lower tube and having a plurality of slots arranged parallel to the telescopic tube, the connecting lever having a locking end and an operating end opposite to each other, the locking block corresponding to the slots and located at the locking end, the connecting lever having a rotating shaft in the middle, the rotating shaft being connected to the sliding bracket; the buffer assembly is connected between the sliding bracket and the lower tube to buffer the relative movement of the upper tube and the lower tube.

[0006] Optionally, the buffer assembly includes: a tension spring, a pulley system, and a pull wire; the tension spring is arranged along the extension direction of the telescopic tube, and the lower end of the tension spring is connected to the lower tube; the pulley system includes a pulley bracket, a fixed pulley, and a movable pulley, the movable pulley is located at the upper end of the tension spring, the pulley bracket is fixed relative to the lower tube, the axis of the fixed pulley is perpendicular to the telescopic tube and fixed relative to the pulley bracket, and the fixed pulley is located above the movable pulley; one end of the pull wire is connected to the sliding bracket, and the other end passes through the fixed pulley and the movable pulley in sequence before being connected to the pulley bracket; wherein, when the sliding bracket moves towards the bottom of the lower tube, the tension spring is pulled to extend through the pull wire and the pulley system.

[0007] Optionally, the sliding bracket has a first clearance groove and a second clearance groove. The first clearance groove avoids the movement path of the fixed pulley relative to the sliding bracket. A pull wire fixing seat is provided in the first clearance groove, and one end of the pull wire is fixed to the pull wire fixing seat. The second clearance groove is spaced above the first clearance groove. The connecting lever is at least partially provided in the second clearance groove. An opening is provided on the side wall of the second clearance groove opposite to the rack. The locking block is slidably disposed in the opening.

[0008] Optionally, the lifting device further includes a rack mounting base, at least partially disposed in the lower tube, the rack mounting base having a mounting hole, the rack being fixed to the inner wall of the mounting hole; wherein, the lower end of the sliding bracket is slidably disposed in the mounting hole.

[0009] Optionally, the inner wall of the mounting hole is provided with a guide groove, the guide groove is spaced apart from the rack, and the outer wall of the sliding bracket is provided with a plurality of guide blocks, the guide blocks being slidably disposed in the guide groove.

[0010] Optionally, the outer wall of the rack mounting base has a limiting boss that abuts against the upper end face of the lower tube. The rack mounting base also has a protrusion that protrudes from the lower tube and extends into the upper tube.

[0011] Optionally, there is a cable receiving space between the bottom of the rack mounting base and the bottom of the lower tube, the outer wall of the rack mounting base has a first cable passage groove, and the outer side of the sliding bracket has a second cable passage groove.

[0012] Optionally, the lifting device further includes a cable with a spiral section in the middle, the spiral section being disposed in the cable receiving space, and one end of the cable passing through the cable receiving space and sequentially passing through the first cable groove and the second cable groove.

[0013] Optionally, the locking assembly further includes a button and a reset element, the button being connected to the operating end; the reset element being elastically connected between the sliding bracket and the locking block and configured to press the locking block against the rack; wherein the side wall of the upper tube has a button hole, and the button protrudes from the button hole.

[0014] Secondly, this utility model also provides an electronic device, including a lifting device as described in the first aspect and a display screen, the display screen being connected to the sliding bracket.

[0015] This utility model provides a lifting device and an electronic device. The lifting device includes a telescopic tube, which comprises an upper tube and a lower tube that can move relative to each other. A sliding bracket is fixedly connected to the upper tube, and the lower end of the sliding bracket extends into the lower tube. A connecting lever is used to operate a locking block to engage the locking block and the rack and pinion to achieve height locking. A buffer assembly is provided between the sliding bracket and the lower tube to buffer the relative movement of the upper and lower tubes. This provides a simple, stable and reliable lifting adjustment mechanism. At the same time, the buffer assembly can prevent the upper tube from falling rapidly under the action of gravity during the adjustment process, improving the safety and convenience of use. Attached Figure Description

[0016] The above and other objects, features and advantages of the present invention will become clearer from the following description of embodiments of the present invention with reference to the accompanying drawings, in which:

[0017] Figure 1 This is a three-dimensional structural diagram of a lifting device according to an embodiment of the present invention;

[0018] Figure 2 This is an exploded structural diagram of a lifting device according to an embodiment of the present invention;

[0019] Figure 3 This is a cross-sectional view of a lifting device according to an embodiment of the present invention;

[0020] Figure 4 This is a partially enlarged schematic diagram of section A of the lifting device according to an embodiment of the present invention;

[0021] Figure 5 This is a partially enlarged schematic diagram of section B of a lifting device according to an embodiment of the present invention;

[0022] Figure 6 This is a schematic diagram of the connection between the rack mounting base and the rack according to one embodiment of the present invention;

[0023] Figure 7 This is a schematic diagram of the cable routing on the rack mounting base and sliding bracket according to one embodiment of the present invention;

[0024] Figure 8 This is a three-dimensional structural diagram of an electronic device according to an embodiment of the present invention.

[0025] Explanation of reference numerals in the attached figures:

[0026] 01-Lifting device; 1-Telescopic tube; 11-Upper tube; 111-Button hole; 12-Lower tube; 121-Cable accommodating space; 2-Sliding bracket; 21-First clearance groove; 211-Pull wire fixing seat; 22-Second clearance groove; 23-Guide block; 24-Second wire passage groove; 3-Locking component; 31-Rack; 311-Card slot; 32-Connecting lever; 321-Locking end; 322-Operating end; 323-Rotating shaft; 33-Card block; 4-Buffer component; 41-Tension spring; 42-Pulley block; 421-Pulley bracket; 422-Fixed pulley; 423-Moving pulley; 43-Pull wire; 5-Rack mounting seat; 51-Mounting hole; 52-Guide groove; 53-Limiting boss; 54-Protrusion; 55-First wire passage groove; 6-Cable; 61-Helical segment; 7-Button; 8-Reset component; 9-Display screen. Detailed Implementation

[0027] The present application is described below based on embodiments, but it is not limited to these embodiments. In the detailed description of the present application below, certain specific details are described in detail. Those skilled in the art can fully understand the present application without these details. To avoid obscuring the substance of the present application, well-known methods, processes, flows, elements, and circuits are not described in detail.

[0028] Furthermore, those skilled in the art should understand that the accompanying drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale.

[0029] Unless the context explicitly requires it, words such as "including" or "contains" throughout the application should be interpreted as including rather than exclusive or exhaustive; that is, meaning "including but not limited to".

[0030] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0031] This utility model embodiment relates to a lifting device 01. Figures 1-7 This is a schematic diagram of the lifting device 01 according to an embodiment of the present invention, wherein... Figure 4 yes Figure 3 A magnified view of part A in the diagram. Figure 5 yes Figure 4A magnified view of section B in the diagram. (Refer to...) Figures 1-5 The lifting device 01 includes a telescopic tube 1, a sliding bracket 2, and a locking assembly 3. The telescopic tube 1 includes an upper tube 11 and a lower tube 12 nested together. The upper end of the lower tube 12 is movably inserted into the upper tube 11. By adjusting the length of the lower tube 12 inserted into the upper tube 11, the length of the telescopic tube 1 can be changed. Equipment requiring height adjustment can be connected to the upper tube 11, and the height of the equipment can be adjusted by extending and retracting the telescopic tube 1. The sliding bracket 2 is fixedly connected to the upper tube 11, and its lower end also extends into the lower tube 12. The sliding bracket 2 can extend and retract relative to the upper tube 11 and the lower tube 12. The length of the sliding bracket 2 can be set relatively long to allow for greater overlap between the sliding bracket 2 and the lower tube 12, enhancing the stability of the lifting device 01. The locking assembly 3 is used to lock the relative position of the upper tube 11 and the lower tube 12, locking the height after the height adjustment of the lifting device 01 is completed.

[0032] The locking assembly 3 includes a rack 31, a connecting lever 32, and a locking block 33. The rack 31 is fixed inside the lower tube 12 and has multiple slots 311 arranged parallel to the telescopic tube 1. The connecting lever 32 has a locking end 321 and an operating end 322 arranged opposite to each other. The locking block 33 corresponds to the slots 311 and is located on the locking end 321. After the locking block 33 is connected to the slots 311, the length of the lifting device 01 can be fixed. The connecting lever 32 has a pivot 323 in the middle, which is connected to the sliding bracket 2. Thus, the connecting lever 32 can rotate around the pivot 323. When the operating end 322 is operated, the locking block 33 on the locking end 321 can be moved closer to or away from the rack 31. When the locking block 33 moves away from the rack 31, the telescopic tube 1 can be extended or retracted by the user; after the extension or retraction between the upper tube 11 and the lower tube 12 is adjusted, the locking block 33 is connected to the corresponding slot 311, which can lock the length of the telescopic tube 1.

[0033] In this embodiment of the utility model, reference is made to Figure 2 , Figure 3 and Figure 5 The lifting device 01 also includes a buffer assembly 4, which is connected between the sliding bracket 2 and the lower tube 12. It is used to buffer the movement of the upper tube 11 and the lower tube 12 during the relative movement, so as to prevent the upper tube 11 and the sliding bracket 2 from falling too fast due to gravity after the locking block 33 leaves the locking slot 311.

[0034] In one embodiment, continue to refer to Figure 2 , Figure 3 and Figure 5The buffer assembly 4 includes a tension spring 41, a pulley block 42, and a pull wire 43. The pulley block 42 includes a pulley bracket 421, a fixed pulley 422, and a movable pulley 423. The pulley bracket 421 is fixed relative to the lower tube 12. The axis of the fixed pulley 422 is perpendicular to the telescopic tube 1 and fixed relative to the pulley bracket 421. The fixed pulley 422 is located above the movable pulley 423. The tension spring 41 is arranged along the telescopic direction of the telescopic tube 1. The lower end of the tension spring 41 is connected to the lower tube 12, and the movable pulley 423 is located at the upper end of the tension spring 41. One end of the pull wire 43 is connected to the sliding bracket 2, and the other end passes sequentially around the fixed pulley 422 and the movable pulley 423 before connecting to the pulley bracket 421. When the sliding bracket 2 moves to the bottom of the lower tube 12, it pulls the pull wire 43 and the movable pulley 423, causing the movable pulley 423 to rise. This, in turn, stretches the tension spring 41. The elastic force of the tension spring 41 can offset the weight of the upper tube 11 and the sliding bracket 2 and other equipment connected to it, thus buffering the descent of the upper tube 11. When it is necessary to extend the telescopic tube 1, the sliding bracket 2 rises, and the elastic force of the tension spring 41 when it retracts can also provide auxiliary force for the user to lift the upper tube 11, making it convenient for the user. Furthermore, this method of setting the buffer component 4 is simple and reliable in structure, with a low failure rate, which helps to reduce costs. The use of the tension spring 41 also makes it easier to set a larger height adjustment range for the lifting device 01.

[0035] Reference Figure 2 Optionally, the sliding bracket 2 has a first clearance groove 21 and a second clearance groove 22. During the extension and retraction of the telescopic tube 1, the fixed pulley 422 also moves relative to the sliding bracket 2. The first clearance groove 21 is positioned to avoid the movement path of the fixed pulley 422 relative to the sliding bracket 2. A pull wire fixing seat 211 is also provided in the first clearance groove 21, and one end of the pull wire 43 is fixed to the pull wire fixing seat 211. The second clearance groove 22 is spaced above the first clearance groove 21, and the connecting lever 32 is at least partially located in the second clearance groove 22. Further, an opening is provided on the side wall of the second clearance groove 22 opposite to the rack 31, and the locking block 33 can slide in the opening under the action of the connecting lever 32. With this arrangement, the structure of the lifting device 01 can be made more compact, and the sliding bracket 2 can also protect the pulley group 42, the connecting lever 32 and the locking block 33.

[0036] In some embodiments, refer to Figure 4The locking component 3 also includes a button 7, which is connected to the operating end 322. The side wall of the upper tube 11 has a button hole 111, through which the button 7 protrudes for the user to press. The locking component 3 also includes a reset element 8, which is elastically connected between the sliding bracket 2 and the locking block 33, and is used to press the locking block 33 against the rack 31. The rack 31 is located on the side opposite to the button hole 111. When the button 7 is pressed, the locking block 33 can be driven away from the slot 311 through the connecting lever 32, thereby allowing the telescopic tube 1 to extend or retract. After the user has adjusted the length of the telescopic tube 1, the button 7 is released, and the reset element 8 can reset the locking block 33, so that the locking block 33 is connected and fixed to the slot 311 on the rack 31, thereby locking the length of the telescopic tube 1. At the same time, the locking block 33 drives the button 7 to pop out of the button hole 111 through the connecting lever 32. The reset element 8 can be a spring, a spring sheet, a magnetic attraction device, etc. For example, in this embodiment, the reset member 8 is a spring, which is disposed at the end of the locking block 33 away from the rack 31.

[0037] In some embodiments, the lifting device 01 further includes a rack mounting seat 5, which is at least partially disposed in the lower tube 12 and fixed relative to the lower tube 12. Figure 6 This is a schematic diagram showing the connection between the rack mounting base 5 and the rack 31. (Refer to...) Figure 3 and Figure 6 The rack mounting base 5 has a mounting hole 51, the rack 31 is fixed to the inner wall of the mounting hole 51, and the lower end of the sliding bracket 2 is slidably disposed in the mounting hole 51.

[0038] Reference Figure 2 and Figure 6 The inner wall of the mounting hole 51 is provided with a guide groove 52, which is spaced apart from the rack 31. The outer wall of the sliding bracket 2 is provided with multiple guide blocks 23, which are slidably disposed in the guide groove 52. Optionally, two sets of guide blocks 23 can be provided, which are respectively disposed on two opposite outer walls of the sliding bracket 2, and two guide grooves 52 are correspondingly provided on the inner wall of the mounting hole 51. Each set of guide blocks 23 may include two or more spaced guide blocks 23, thereby providing a stable guiding effect for the relative sliding between the sliding bracket 2 and the rack mounting seat 5.

[0039] In some embodiments, refer to Figure 2 and Figure 6 The outer wall of the rack mounting base 5 has a limiting boss 53, which abuts against the upper end face of the lower tube 12. The rack mounting base 5 also has a protrusion 54, which protrudes from the upper end face of the lower tube 12 and extends into the upper tube 11. This ensures that when the telescopic tube 1 is extended to its maximum length, there is a certain overlap between the rack mounting base 5 and the upper tube 11, thus ensuring the stability of the lifting device 01.

[0040] like Figure 3 As shown, there is a certain gap between the bottom of the rack mounting base 5 and the bottom of the lower tube 12, forming a cable receiving space 121 capable of accommodating the cable 6. Optionally, the lifting device 01 also includes the cable 6, the middle of which has a helical section 61, which is disposed in the cable receiving space 121. (Refer to...) Figure 7 The outer wall of the rack and pinion mounting base 5 has a first wire-passing groove 55, and the outer side of the sliding bracket 2 has a second wire-passing groove 24, for the cable 6 to pass through. One end of the cable 6 exits from the cable receiving space 121 and passes through the first wire-passing groove 55 and the second wire-passing groove 24 in sequence. A helical section 61 is provided on the cable 6, which allows the cable 6 to adapt to the expansion and contraction of the telescopic tube 1. When the telescopic tube 1 is shortened, the helical section 61 can retract the cable 6 into the cable receiving space 121 under the action of elastic force.

[0041] In another aspect of the embodiments of this utility model, an electronic device is also described, with reference to... Figure 8 The electronic device includes the lifting device 01 described in at least some of the embodiments above, which serves as a support structure. In some application scenarios, such as Figure 8 As shown, the electronic device also includes a display screen 9, which is connected to the sliding bracket 2, thereby enabling the display screen 9 to be raised and lowered to adapt to the user's needs in different scenarios. By adopting the lifting device 01 in the above embodiment, a stable and reliable support and height adjustment method can be provided for the display screen 9. Optionally, the electronic device can be implemented as a smart screen, which can be used to play images and videos, and can install applications to realize screen projection, video conferencing, games and other functions.

[0042] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A lifting device, characterized in that, include: Telescopic tube (1) includes an upper tube (11) and a lower tube (12), wherein the upper end of the lower tube (12) is movably inserted into the upper tube (11); A sliding bracket (2) is fixedly connected to the upper tube (11), and the lower end of the sliding bracket (2) extends into the lower tube (12); The locking assembly (3) includes a rack (31), a connecting lever (32), and a locking block (33). The rack (31) is fixed inside the lower tube (12) and has a plurality of slots (311) arranged in a direction parallel to the telescopic tube (1). The connecting lever (32) has a locking end (321) and an operating end (322) disposed opposite to each other. The locking block (33) corresponds to the slots (311) and is disposed on the locking end (321). The connecting lever (32) has a pivot (323) in the middle, and the pivot (323) is connected to the sliding bracket (2). A buffer assembly (4) is connected between the sliding bracket (2) and the lower tube (12) to buffer the relative movement of the upper tube (11) and the lower tube (12).

2. The lifting device according to claim 1, characterized in that, The buffer component (4) includes: A tension spring (41) is provided along the extension and retraction direction of the telescopic tube (1), and the lower end of the tension spring (41) is connected to the lower tube (12); A pulley block (42) includes a pulley bracket (421), a fixed pulley (422), and a movable pulley (423). The movable pulley (423) is located at the upper end of the tension spring (41). The pulley bracket (421) is fixed relative to the lower tube (12). The axis of the fixed pulley (422) is perpendicular to the telescopic tube (1) and fixed relative to the pulley bracket (421). The fixed pulley (422) is located above the movable pulley (423). A pull wire (43) is connected at one end to the sliding bracket (2), and at the other end, it passes through the fixed pulley (422) and the movable pulley (423) in sequence before being connected to the pulley bracket (421); When the sliding bracket (2) moves toward the bottom of the lower tube (12), the tension spring (41) is stretched by the pull wire (43) and the pulley group (42).

3. The lifting device according to claim 2, characterized in that, The sliding bracket (2) has a first clearance groove (21) and a second clearance groove (22). The first clearance groove (21) avoids the movement path of the fixed pulley (422) relative to the sliding bracket (2). A pull wire fixing seat (211) is provided in the first clearance groove (21). One end of the pull wire (43) is fixed to the pull wire fixing seat (211). The second clearance groove (22) is spaced above the first clearance groove (21). The connecting lever (32) is at least partially provided in the second clearance groove (22). An opening is provided on the side wall of the second clearance groove (22) opposite to the rack (31). The locking block (33) is slidably disposed in the opening.

4. The lifting device according to claim 1, characterized in that, Also includes: A rack mounting base (5) is at least partially disposed in the lower tube (12), the rack mounting base (5) has a mounting hole (51), and the rack (31) is fixed to the inner wall of the mounting hole (51); The lower end of the sliding bracket (2) is slidably disposed in the mounting hole (51).

5. The lifting device according to claim 4, characterized in that, The inner wall of the mounting hole (51) is provided with a guide groove (52), the guide groove (52) is spaced apart from the rack (31), and the outer wall of the sliding bracket (2) is provided with a plurality of guide blocks (23), the guide blocks (23) are slidably disposed in the guide groove (52).

6. The lifting device according to claim 4, characterized in that, The outer side wall of the rack mounting base (5) has a limiting boss (53), which abuts against the upper end face of the lower tube (12). The rack mounting base (5) also has a protrusion (54), which protrudes from the lower tube (12) and extends into the upper tube (11).

7. The lifting device according to claim 4, characterized in that, The bottom of the rack mounting base (5) and the bottom of the lower tube (12) have a cable receiving space (121), the outer side wall of the rack mounting base (5) has a first cable passage groove (55), and the outer side of the sliding bracket (2) has a second cable passage groove (24).

8. The lifting device according to claim 7, characterized in that, The lifting device (01) also includes a cable (6), the middle of which has a spiral section (61), the spiral section (61) is disposed in the cable receiving space (121), one end of the cable (6) passes out from the cable receiving space (121) and passes through the first wire guide groove (55) and the second wire guide groove (24) in sequence.

9. The lifting device according to claim 1, characterized in that, The locking component (3) also includes: Button (7), which is connected to the operation terminal (322); and A reset member (8) is elastically connected between the sliding bracket (2) and the locking block (33) and is configured to press the locking block (33) against the rack (31); The upper tube (11) has a button hole (111) on its side wall, and the button (7) protrudes from the button hole (111).

10. An electronic device, characterized in that, include: The lifting device (01) as described in any one of claims 1-9; as well as The display screen (9) is connected to the sliding bracket (2).

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