A lifting device and a display equipment bracket

Abstract

This utility model discloses a lifting device and a display device bracket, belonging to the technical field of lifting devices. The lifting device includes a supporting sleeve, a movable sleeve, a driving mechanism, and auxiliary components. The supporting sleeve has a moving channel inside; the movable sleeve passes through the moving channel; the driving mechanism is connected to the movable sleeve and is used to drive the movable sleeve to move up and down along the moving channel; the auxiliary components are disposed between the driving mechanism and the movable sleeve, and can provide a lifting force to the movable sleeve along the lifting direction of the movable sleeve; wherein, the driving mechanism has an accommodating space extending along the lifting direction of the movable sleeve, and the auxiliary components are partially inserted into the accommodating space. This display device bracket, equipped with the above-mentioned lifting device, achieves the effects of fast lifting speed, high space utilization, and good economy.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, and in particular to a lifting device and a display device bracket. Background Technology

[0002] In modern life and work scenarios, lifting brackets are used to fix external devices such as monitors or televisions to the panel and have a practical lifting function to meet people's different height requirements when using the monitor or television. The lifting function is mainly achieved through electric lifting and manual lifting.

[0003] Traditional electric lifting platforms primarily employ methods such as motor-driven lead screws, motor-driven telescopic rods, and motors in conjunction with racks and pinions to achieve lifting. However, in practical use, these traditional electric lifting platforms have relatively slow lifting speeds, failing to quickly meet users' immediate needs for height adjustment.

[0004] To increase the lifting speed, the conventional approach is to increase the motor power and speed. This not only requires a simultaneous increase in power supply, which significantly reduces the economic efficiency of the lifting bracket and increases operating costs, but also necessitates more space and volume to accommodate the new power equipment, thus reducing the space utilization rate of the lifting bracket. Utility Model Content

[0005] The purpose of this utility model is to provide a lifting device and a display equipment bracket to solve the technical problem that existing lifting brackets are difficult to achieve both high lifting speed and high space utilization.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] On the one hand, this utility model provides a lifting device, including:

[0008] The support sleeve has an internal moving channel;

[0009] A movable sleeve is inserted into the moving channel;

[0010] A drive mechanism, connected to the movable sleeve, is used to drive the movable sleeve to move up and down along the moving channel;

[0011] An auxiliary component, disposed between the drive mechanism and the movable sleeve, is capable of providing a lifting force to the movable sleeve along the lifting direction of the movable sleeve;

[0012] The drive mechanism has a receiving space extending along the lifting direction of the movable sleeve, and a portion of the auxiliary component passes through the receiving space.

[0013] Preferably, at least one of the connections between the auxiliary component and the drive mechanism, and between the auxiliary component and the movable sleeve, is a rotatable connection.

[0014] Preferably, the auxiliary component is elastic, and the movable sleeve can compress the auxiliary component during the lifting process, so that the auxiliary component applies an elastic lifting force to the movable sleeve in the lifting direction.

[0015] Preferably, the auxiliary component is a gas spring, which includes an outer cylinder and a piston rod, with the outer cylinder sleeved on the piston rod; one of the outer cylinder and the piston rod is connected to the movable sleeve, and the other of the outer cylinder and the piston rod is connected to the drive mechanism;

[0016] Alternatively, the auxiliary component may be a mechanical spring.

[0017] Preferably, the driving mechanism includes a driving member and a threaded rod. The output end of the driving member is connected to the threaded rod and can drive the threaded rod to rotate around its own axis. The movable sleeve is connected to the outer periphery of the threaded rod through a threaded engagement.

[0018] The support sleeve and the movable sleeve are anti-rotationally fitted in the circumferential direction.

[0019] Preferably, a nut sleeve is provided inside the movable sleeve, the nut sleeve is connected to the inner wall of the movable sleeve, and the inner circumference of the nut sleeve is threaded to the outer circumference of the threaded rod; when the threaded rod rotates, it drives the nut sleeve and the movable sleeve to rise or fall.

[0020] Preferably, the accommodating space is formed by the threaded rod extending axially inside itself.

[0021] The threaded rod is provided with a limiting sleeve inside, the limiting sleeve is sleeved on the outer periphery of the auxiliary component and abuts against the inner wall of the threaded rod; and / or, the threaded rod is provided with a limiting sleeve outside, the limiting sleeve is sleeved on the outer periphery of the threaded rod and abuts against the inner wall of the movable sleeve.

[0022] The outer periphery of the threaded rod is provided with a limiting element, which is used to provide radial limiting for the threaded rod. The limiting element and the threaded rod are connected by a bearing structure, and the limiting element provides axial support to the threaded rod.

[0023] The limiting sleeve is fitted onto the upper part of the threaded rod for the insertion of the auxiliary component; the limiting component is fitted onto the lower part of the threaded rod.

[0024] Preferably, the drive mechanism further includes an adapter, the input end of which is connected to the output end of the drive member, and the output end of which is connected to the threaded rod.

[0025] The auxiliary component is mounted on the adapter or the threaded rod via a first bearing, or the auxiliary component is mounted on the adapter or the threaded rod in an anti-rotation manner.

[0026] The bottom of the support sleeve is provided with a connecting seat, which provides support to the limiting member and the adapter; the adapter or the threaded rod provides support to the auxiliary member.

[0027] Preferably, one end of the auxiliary component is fixedly connected to the movable sleeve, and the other end of the auxiliary component is rotatably connected to the drive mechanism; or...

[0028] One end of the auxiliary component is rotatably connected to the movable sleeve, and the other end of the auxiliary component is fixedly or rotatably connected to the drive mechanism; or...

[0029] The auxiliary component is a gas spring, which includes an outer cylinder and a piston rod. The outer cylinder is sleeved on the piston rod, and the end of the piston rod away from the outer cylinder is rotatably connected to the movable sleeve. The threaded rod is integrally formed on the outer wall of the outer cylinder.

[0030] Preferably, the outer wall of the movable sleeve is provided with a sliding member, which is slidably connected to the inner wall of the supporting sleeve;

[0031] And / or, the movable sleeve is provided with a rolling element on the outside, and the rolling element is rotatably connected to the inner wall of the support sleeve;

[0032] Wherein: when only the slider or only the rolling element is provided, the number of the slider or the rolling element is set to multiple; when both the slider and the rolling element are provided, the number of the slider is set to one or more, and the number of the rolling element is set to one or more.

[0033] At least one of the sliding members or at least one of the rolling members is attached to one end of the movable sleeve that is retractably fitted with the supporting sleeve; at least one of the sliding members or at least one of the rolling members is attached to one end of the supporting sleeve that is retractably fitted with the movable sleeve.

[0034] Preferably, a buffer element is provided inside the support sleeve, and one end of the movable sleeve can abut against the buffer element; the driving mechanism is electric or manual.

[0035] On the other hand, this utility model also provides a display device bracket, including a support mechanism and the above-mentioned lifting device. The support mechanism is connected to the movable sleeve. The support mechanism is used to install the display device. The movable sleeve can adjust the height of the display device by driving the support mechanism to lift and lower.

[0036] The beneficial effects of this utility model are:

[0037] The lifting device proposed in this utility model provides support and guidance for the lifting movement of the movable sleeve through a moving channel set inside the support sleeve, effectively ensuring the stability and straightness of the movable sleeve during the lifting process and preventing swaying or jamming. The auxiliary component located between the drive mechanism and the movable sleeve provides additional lifting force along the lifting direction of the movable sleeve, thus superimposing on the driving force generated by the drive mechanism and acting together on the movable sleeve. This effectively improves the lifting speed and response efficiency of the movable sleeve, enabling it to quickly reach the predetermined height and meeting the user's need for instant height adjustment. Simultaneously, the accommodating space extending along the lifting direction inside the drive mechanism allows partial insertion of the auxiliary component. This structural layout utilizes the internal space of the drive mechanism itself to accommodate part of the auxiliary component, rather than simply stacking auxiliary components on the outside, thereby avoiding an increase in the overall volume and external dimensions of the device due to the addition of auxiliary components, achieving efficient utilization of the internal space of the device. In summary, the lifting device of this utility model combines the advantages of increasing lifting speed and maintaining structural compactness. It does not require increasing motor power and speed to achieve speed increase, thus avoiding the need for larger power supply and larger installation space. It achieves the effects of fast lifting speed, high space utilization and good economy. Attached Figure Description

[0038] Figure 1 This is a first exploded structural diagram of the lifting device provided in Embodiment 1 of this utility model;

[0039] Figure 2 This is a second exploded structural diagram of the lifting device provided in Embodiment 1 of this utility model;

[0040] Figure 3 This is a cross-sectional view of the lifting device provided in Embodiment 1 of this utility model;

[0041] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0042] Figure 5 yes Figure 3 Enlarged view of point B in the middle;

[0043] Figure 6This is a schematic diagram of the structure of the movable sleeve and the rolling element provided in Embodiment 1 of this utility model;

[0044] Figure 7 This is a schematic diagram of the structure of the movable sleeve and sliding member in Embodiment 1 of this utility model;

[0045] Figure 8 This is an exploded structural diagram of the display device bracket provided in Embodiment 2 of this utility model;

[0046] Figure 9 This is a schematic diagram of the structure of the display device bracket provided in Embodiment 2 of this utility model.

[0047] In the picture:

[0048] 100. Display devices;

[0049] 1. Bearing mechanism;

[0050] 2. Movable sleeve; 211. Sliding component; 212. Rolling component; 213. Limiting sleeve; 22. Drive mechanism; 221. Drive component; 222. Adapter; 2221. Motor support base; 2222. Bearing pressure plate; 2223. Motor transmission connecting rod; 2224. Gas spring lower fixing base; 223. Threaded rod; 2231. Accommodating space; 224. Limiting component; 225. Bearing structure; 23. Nut sleeve;

[0051] 3. Auxiliary components; 31. Outer cylinder; 32. Piston column; 33. First bearing;

[0052] 4. Support sleeve; 41. Moving channel; 42. Buffer; 43. Connecting seat;

[0053] 5. Moving components; 51. Support base; 52. Casters. Detailed Implementation

[0054] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0055] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0056] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0057] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0058] Example 1

[0059] See Figures 1 to 7 The lifting device provided in this embodiment of the utility model includes a support sleeve 4, a movable sleeve 2, a drive mechanism 22, and an auxiliary component 3. The support sleeve 4 has a moving channel 41 inside; the movable sleeve 2 passes through the moving channel 41; the drive mechanism 22 is connected to the movable sleeve 2 and is used to drive the movable sleeve 2 to move up and down along the moving channel 41; the auxiliary component 3 is disposed between the drive mechanism 22 and the movable sleeve 2, and can provide a lifting force to the movable sleeve 2 along the lifting direction of the movable sleeve 2; the drive mechanism 22 has an accommodating space 2231 extending along the lifting direction of the movable sleeve 2, and a portion of the auxiliary component 3 passes through the accommodating space 2231.

[0060] The lifting device proposed in this utility model provides support and guidance for the lifting movement of the movable sleeve 2 through the moving channel 41 set inside the support sleeve 4, effectively ensuring the stability and straightness of the movable sleeve 2 during the lifting process and preventing swaying or jamming. The auxiliary component 3 set between the drive mechanism 22 and the movable sleeve 2 can provide additional lifting force along the lifting direction of the movable sleeve 2, thereby superimposing with the driving force generated by the drive mechanism 22 and acting together on the movable sleeve 2, effectively improving the lifting speed and response efficiency of the movable sleeve 2, enabling the movable sleeve 2 to quickly reach the predetermined height and meet the user's need for instant height adjustment. At the same time, the accommodating space 2231 extending along the lifting direction inside the drive mechanism 22 allows a portion of the auxiliary component 3 to pass through it. This structural layout utilizes the internal space of the drive mechanism 22 itself to accommodate part of the auxiliary component 3, rather than simply stacking auxiliary components on the outside, thereby avoiding the increase in the overall volume and external dimensions of the device caused by adding auxiliary components, and realizing the efficient use of the internal space of the device. In summary, the lifting device of this utility model combines the advantages of increasing lifting speed and maintaining structural compactness. It does not require increasing motor power and speed to achieve speed increase, thus avoiding the need for larger power supply and larger installation space. It achieves the effects of fast lifting speed, high space utilization and good economy.

[0061] The specific structure and working principle of the lifting device will be described in detail below.

[0062] The support sleeve 4 is fixedly installed on the external panel or base, and the support sleeve 4 has a vertically extending moving channel 41 inside. The movable sleeve 2 passes through the moving channel 41 and can move up and down in the moving channel 41.

[0063] To achieve circumferential limiting of the movable sleeve 2 and prevent it from rotating during lifting, a circumferential anti-rotation fit structure is provided between the support sleeve 4 and the movable sleeve 2.

[0064] In one specific implementation of this embodiment, the circumferential anti-rotation fit structure can be that both the support sleeve 4 and the movable sleeve 2 are square tubes with a rectangular radial cross section. After the two square tubes are sleeved together, the inner wall of one square tube and the outer wall of the other square tube directly or indirectly form an abutment limit, ensuring that the movable sleeve 2 can only move linearly up and down along the moving channel 41 and cannot rotate circumferentially.

[0065] In other embodiments, the circumferential anti-rotation fit structure may also have a guide protrusion extending axially on the outer wall of the movable sleeve 2, and correspondingly, a guide groove adapted to the guide protrusion is formed on the inner wall of the moving channel 41 of the supporting sleeve 4. The guide protrusion is slidably embedded in the guide groove, thereby ensuring that the movable sleeve 2 can only move linearly up and down along the direction of the guide groove, i.e., the vertical direction, and cannot rotate circumferentially.

[0066] The drive mechanism 22 provides the active driving force required for the lifting and lowering of the movable sleeve 2. The drive mechanism 22 includes a drive element 221 and a threaded rod 223. In this embodiment, the drive element 221 is preferably a motor, and the output end of the drive element 221 is connected to the threaded rod 223, thereby enabling the threaded rod 223 to rotate around its own axis.

[0067] The threaded rod 223 is arranged vertically, and its interior is provided with a receiving space 2231 that extends through it along its axial direction, i.e. the lifting direction of the movable sleeve 2. The receiving space 2231 can be used to accommodate part of the structure of the auxiliary component 3.

[0068] The movable sleeve 2 and the threaded rod 223 are connected by a threaded engagement. Specifically, a nut sleeve 23 is fixedly installed inside the movable sleeve 2. The nut sleeve 23 can be connected to the inner wall of the movable sleeve 2 by means of, for example, snap-fit, interference fit, or screw connection. The inner circumferential wall of the nut sleeve 23 is machined with internal threads, which mesh with the external threads machined on the outer circumferential wall of the threaded rod 223 to form a threaded transmission pair.

[0069] Its working principle is as follows: When the drive component 221 is activated, it drives the threaded rod 223 to rotate around its own axis. Due to the circumferential anti-rotation fit structure between the support sleeve 4 and the movable sleeve 2, their relative rotation is restricted, and the nut sleeve 23 fixed to the movable sleeve 2 cannot rotate either. Therefore, under the action of threaded transmission, the rotating threaded rod 223 drives the nut sleeve 23 to move along the moving channel 41 of the support sleeve 4, thereby driving the entire movable sleeve 2 to move linearly upward or downward along the moving channel 41 of the support sleeve 4, thus realizing the lifting function.

[0070] The mating structure between the threaded rod 223 and the auxiliary component 3 is further described in detail in this embodiment. The interior of the threaded rod 223 extends along its own axial direction to form an accommodating space 2231. This design allows the threaded rod 223 to perform its transmission function while also providing accommodating space for the auxiliary component 3, resulting in a compact structure.

[0071] To ensure the stability of the auxiliary component 3 within the accommodating space 2231 and reduce its wobbling during operation, a limiting sleeve 213 is provided inside the threaded rod 223. The limiting sleeve 213 is fitted onto the outer periphery of the auxiliary component 3, while the outer circumferential surface of the limiting sleeve 213 abuts against the inner wall of the threaded rod 223. Through this interference fit or tight clearance fit, the limiting sleeve 213 effectively restricts the radial movement of the auxiliary component 3 relative to the threaded rod 223, providing good alignment and guidance.

[0072] It is understood that the location of the limiting sleeve 213 is not limited to inside the threaded rod 223. In another optional embodiment, the limiting sleeve 213 can also be located outside the threaded rod 223. In this case, the limiting sleeve 213 is fitted around the outer periphery of the threaded rod 223, and its outer circumferential surface abuts against the inner wall of the movable sleeve 2. This arrangement can also limit the relative radial movement between the threaded rod 223 and the movable sleeve 2, thereby enhancing transmission stability. Those skilled in the art can choose to set both the inner and outer limiting sleeves 213 according to the actual structural layout requirements.

[0073] A limiting member 224 is provided on the outer periphery of the threaded rod 223 near its lower end. The limiting member 224 is connected to the threaded rod 223 via a bearing structure 225. The limiting member 224 can be a bearing housing fixed to the bottom of the support sleeve 4 or an internal bracket. The bearing structure 225 is preferably a combined bearing capable of simultaneously withstanding radial and axial forces, such as a combination of a thrust ball bearing and a deep groove ball bearing, or a composite bearing. The inner ring of the bearing structure 225 is interference-fitted with the threaded rod 223, and the outer ring is fixed to the limiting member 224. Through the above arrangement, the limiting member 224, via the bearing structure 225, provides radial support for the high-speed rotating threaded rod 223, limiting its radial runout, and also provides reliable axial support, bearing the axial force generated during lifting and lowering, thus ensuring transmission accuracy and smoothness.

[0074] In summary, in the preferred embodiment, the limiting sleeve 213 is fitted onto the upper region of the threaded rod 223 for the insertion of the auxiliary component 3, primarily guiding and limiting the auxiliary component 3; while the limiting component 224 is fitted onto the lower part of the threaded rod 223 via the bearing structure 225, primarily undertaking the radial and axial positioning functions of the threaded rod 223. This upper and lower partitioned support and limiting design jointly ensures the rigidity and operational stability of the entire lifting transmission system.

[0075] To achieve better torque transmission and speed matching, the drive mechanism 22 also includes an adapter 222. The input end of the adapter 222 is connected to the output shaft of the drive member 221, and the output end of the adapter 222 is coaxially connected to one end of the threaded rod 223.

[0076] In some embodiments, when the rotation axis of the output end of the drive member 221 extends in the horizontal direction, the adapter 222 can convert the rotation of the horizontal axis of the output end of the drive member 221 into the rotation of the vertical axis of the threaded rod 223.

[0077] The lower end of the auxiliary component 3 is mounted on the adapter 222 or the threaded rod 223 via a first bearing 33. Specifically, a bearing housing can be provided inside the housing of the adapter 222, in which the first bearing 33 is installed, and the journal at the lower end of the auxiliary component 3 is tightly fitted with the inner ring of the first bearing 33. This arrangement allows relative rotation between the auxiliary component 3 and the adapter 222, thereby effectively preventing the auxiliary component 3 from twisting when the threaded rod 223 rotates, ensuring that the auxiliary component 3 provides lifting force only along the axial direction.

[0078] It is understood that the support and anti-rotation methods of the auxiliary component 3 are not limited to this. In another embodiment, the auxiliary component 3 can also be mounted anti-rotationally on the adapter 222 or the threaded rod 223. For example, the lower end of the auxiliary component 3 can engage with a corresponding keyway on the adapter 222 via a sliding key or spline, allowing the auxiliary component 3 to move relative to the threaded rod 222 in the axial direction, but being completely restricted in the circumferential direction, thereby achieving anti-rotation. This anti-rotation mounting can also achieve the purpose of preventing the auxiliary component 3 from rotating with the threaded rod 223.

[0079] To provide a stable mounting base for the entire drive mechanism 22, a connecting seat 43 is provided at the bottom of the support sleeve 4. The connecting seat 43 can be fixed to the bottom of the support sleeve 4 by welding or bolting. As a common support platform, the connecting seat 43 provides support and fixation for both the limiting member 224 and the adapter 222, thereby ensuring the relative positional accuracy and structural rigidity of the entire transmission chain, including the drive member 221, the adapter 222, the threaded rod 223, and the limiting member 224.

[0080] Similarly, the adapter 222 or the threaded rod 223 also serves to provide radial support and even axial support to the auxiliary component 3, enabling the auxiliary component 3 to stably perform its auxiliary lifting function and work in coordination with the drive mechanism 22 to achieve rapid and smooth lifting of the movable sleeve 2.

[0081] Specifically, the adapter 222 mainly includes a motor support 2221, a bearing pressure plate 2222, a motor drive connecting rod 2223, and a gas spring lower fixing seat 2224.

[0082] The motor support 2221 is fixed to the bottom connecting seat 43 of the support sleeve 4, providing a stable mounting base for the drive component 221. The drive component 221 is placed horizontally, and its output shaft passes through the through hole on the motor support 2221.

[0083] The motor drive connecting rod 2223 is arranged vertically. Its lower end is connected to the horizontal output shaft of the drive component 221 through a pair of bevel gears or a worm gear pair, thereby realizing a 90-degree change in the direction of motion, converting the rotation of the horizontal axis into the rotation of the vertical axis. The upper end of the motor drive connecting rod 2223 is coaxially connected to the lower end of the threaded rod 223 through a coupling.

[0084] The lower gas spring mounting base 2224 is fixedly sleeved on the outside of the motor drive connecting rod 2223, or fixedly connected to the upper end of the motor drive connecting rod 2223. The lower gas spring mounting base 2224 is used to fix the lower end of the auxiliary component 3, that is, the bottom end of the outer cylinder 31, or the bottom end of the piston column 32.

[0085] The bearing pressure plate 2222 is installed above the lower fixing seat 2224 of the gas spring, and a first bearing 33 is press-fitted inside it. The inner ring of the first bearing 33 is tightly fitted onto the lower journal of the piston column 32 of the auxiliary component 3. Through the synergistic action of the bearing pressure plate 2222 and the lower fixing seat 2224 of the gas spring, reliable fixation and rotatable support of the lower end of the auxiliary component 3 are achieved.

[0086] The specific structure, connection method, and interaction between the auxiliary component 3 and the movable sleeve 2 are key to achieving efficient assisted lifting in this embodiment. Specifically, at least one connection between the auxiliary component 3 and the drive mechanism 22, and between the auxiliary component 3 and the movable sleeve 2, is a rotatable connection. For example, in a preferred embodiment, the lower end of the auxiliary component 3 is rotatably connected to the adapter 222 via a first bearing 33. This allows the lower support point of the auxiliary component 3 to remain relatively static or allow for slight angular changes when the threaded rod 223 rotates, thereby preventing the auxiliary component 3 from being twisted due to the rotation of the transmission components and ensuring that the force transmission path always extends axially.

[0087] Furthermore, the auxiliary component 3 itself is constructed to be elastic. During the lifting and lowering process of the movable sleeve 2, when the movable sleeve 2 descends, it can compress the auxiliary component 3, allowing the auxiliary component 3 to accumulate elastic potential energy; while when the movable sleeve 2 rises, the compressed auxiliary component 3 releases its elastic potential energy, thereby continuously applying an elastic lifting force along its lifting and lowering direction to the movable sleeve 2. This elastic lifting force, combined with the active driving force provided by the drive mechanism 22, works together to improve the lifting and lowering response speed and overall motion efficiency.

[0088] Regarding the flexible implementation of auxiliary component 3, this embodiment provides two typical and optional implementation schemes:

[0089] In a preferred embodiment, auxiliary component 3 is a gas spring. The gas spring mainly includes a sealed outer cylinder 31 and a piston rod 32 that can reciprocate within the outer cylinder 31. The outer cylinder 31 is fitted over the piston rod 32, and the two together form a sealed air chamber. In actual installation, one of the outer cylinder 31 and the piston rod 32 is connected to the movable sleeve 2, while the other is connected to the adapter 222 or threaded rod 223 of the drive mechanism 22. The gas spring is filled with inert gas at a predetermined pressure. When the movable sleeve 2 descends, it compresses the gas spring, increasing its internal pressure and storing energy; when it needs to rise, the inert gas expands, releasing a strong elastic lifting force, which assists the drive mechanism 22 in quickly pushing the movable sleeve 2 up.

[0090] As a simple alternative, auxiliary component 3 can also be a mechanical spring, such as a large compression or tension spring. Its connection method is similar to that of a gas spring, with both ends of the spring connected to the support points of the movable sleeve 2 and the drive mechanism 22, respectively. The required elastic lifting force is generated through the compression or tension of the spring itself.

[0091] The specific connection relationship between the auxiliary component 3, the movable sleeve 2, and the drive mechanism 22 is crucial for the effective transmission of force and the coordination of the mechanism's movement. Alternatively, one end of the auxiliary component 3 can be fixedly connected to the movable sleeve 2, and the other end can be rotatably connected to the drive mechanism 22; or, one end of the auxiliary component 3 can be rotatably connected to the movable sleeve 2, and the other end can be either fixedly or rotatably connected to the drive mechanism 22.

[0092] Specifically, when the auxiliary component 3 is a gas spring, this invention also provides a highly integrated preferred embodiment. Specifically, the end of the gas spring's piston rod 32 furthest from the outer cylinder 31 is rotatably connected to the movable sleeve 2. The innovative design lies in the fact that the threaded rod 223 in the drive mechanism 22 is not a separate part, but is integrally formed on the outer wall of the gas spring's outer cylinder 31. That is, the threaded portion of the threaded rod 223 is machined on the outer surface of the gas spring's outer cylinder 31, giving it the dual functions of both the outer cylinder 31 and the threaded rod 223. At this time, the drive component 221 drives the rotation of this outer cylinder 31, which also functions as the threaded rod 223, through the adapter 222. This integrated design simplifies the structure, reduces the number of parts, and makes the device more compact.

[0093] Its operation is as follows: Drive unit 221 starts, driving the entire outer cylinder 31 of the gas spring to rotate via adapter 222. Since the piston rod 32 is rotatably connected to the movable sleeve 2, the rotating outer cylinder 31 drives the integrated threaded rod 223 to engage with the nut sleeve 23, driving the movable sleeve 2 to rise. Simultaneously, as the movable sleeve 2 rises, it pulls the piston rod 32 out of the outer cylinder 31, causing the internal pressure gas of the gas spring to expand, generating a strong auxiliary lifting force. This lifting force acts directly on the movable sleeve 2 through the connection point between the outer cylinder 31 and the movable sleeve 2.

[0094] To ensure smoother and more stable vertical movement of the movable sleeve 2 within the moving channel 41 of the supporting sleeve 4, and to effectively reduce wear and noise, this invention further optimizes the mating structure between the two. See also Figure 6 and Figure 7 Specifically, this is achieved by setting a sliding pair and / or a rolling pair between the movable sleeve 2 and the support sleeve 4.

[0095] In one embodiment, a sliding member 211 is provided on the outer wall of the movable sleeve 2. The sliding member 211 is directly slidably connected to the inner wall of the supporting sleeve 4, forming sliding friction. This sliding guiding method has a simple structure, low cost, and low operating noise.

[0096] In another embodiment, to achieve lower motion resistance and higher precision, a rolling element 212 is provided on the outside of the movable sleeve 2. This rolling element 212 can be a ball bearing mounted on the outer wall of the movable sleeve 2. The rolling element 212 is rolled against the inner wall of the supporting sleeve 4, generating rolling friction, which reduces motion resistance and makes lifting operations easier.

[0097] The quantity and layout of the slider 211 and the rolling element 212 are as follows:

[0098] When only the sliding member 211 is provided, its quantity is set to multiple, for example, at least two, and preferably evenly distributed along the circumference of the movable sleeve 2 to ensure the stability of the guide.

[0099] When only rolling elements 212 are provided, their number is also set to multiple and they are evenly arranged along the circumference of the movable sleeve 2 to provide stable rolling support.

[0100] When both sliders 211 and rollers 212 are provided, the number of sliders 211 can be set to one or more, and the number of rollers 212 can also be set to one or more. This hybrid configuration can balance cost and performance, for example, using rollers 212 to bear the main load and using sliders 211 to provide auxiliary guidance and anti-tipping.

[0101] Furthermore, at least one sliding element 211 or at least one rolling element 212 is attached to the end of the movable sleeve 2 that is retractably fitted with the support sleeve 4. Alternatively, at least one sliding element 211 or at least one rolling element 212 is attached to the end of the support sleeve 4 that is retractably fitted with the movable sleeve 2 (i.e., the open end of the support sleeve 4). This arrangement ensures that the movable sleeve 2 obtains effective and stable guiding effect and radial support throughout the entire lifting stroke, whether it is in the retracted, intermediate, or fully extended state, minimizing the risk of swaying and jamming that may occur due to the cantilever effect, thereby ensuring the smoothness and reliability of the lifting process.

[0102] To further improve the service life, safety, and user experience of the lifting device, this invention includes a buffer element 42 inside the support sleeve 4. The buffer element 42 is preferably made of an elastic material, such as rubber, polyurethane, or silicone. It can be fixedly installed at the bottom of the inner cavity of the support sleeve 4 by adhesive bonding or snap-fitting. When the movable sleeve 2 descends to its lowest position, the end of the movable sleeve 2 closest to the drive mechanism 22 (i.e., the bottom end) abuts against the buffer element 42. This design prevents the movable sleeve 2 from rigidly colliding with the hard bottom of the support sleeve 4 at the end of its stroke. Instead, the elastic deformation of the buffer element 42 absorbs and dissipates impact energy, effectively providing cushioning, shock absorption, and noise reduction, protecting the internal structure and components of the device, and improving the quietness of operation.

[0103] It is understood that in this embodiment, the drive mechanism 22 includes a drive component 221 and related transmission components (such as an adapter 222 and a threaded rod 223). The drive component 221 is a motor or other related electrical equipment. This electric drive method is simple to operate and easy to automate.

[0104] Meanwhile, this utility model also covers a manual drive method. In this embodiment, the drive mechanism 22 can be manual. For example, the motor can be omitted, and a hand crank mechanism can be connected to the input end of the threaded rod 223 or the adapter 222. The user can manually rotate the hand crank to transmit human power to the threaded rod 223, thereby driving the movable sleeve 2 to rise and fall. This manual solution has a simple structure, requires no electricity, and has higher economy and reliability. It is suitable for occasions where automation requirements are not high or where it is necessary to ensure normal operation in an environment without electricity.

[0105] Example 2

[0106] like Figure 8 and Figure 9As shown, this utility model embodiment also provides a display device bracket, which includes a support mechanism 1 and a lifting device provided in Embodiment 1. For the sake of simplicity, the same or corresponding parts as in Embodiment 1 are referred to by the same reference numerals as in Embodiment 1 in the following description.

[0107] This display stand is designed to solve the problems of inconvenient height adjustment, slow speed, and large space occupation of existing display devices such as monitors or televisions.

[0108] The specific structure, connection relationship, and working principle of the lifting device are the same as in Embodiment 1, and will not be repeated here. Its core components include the support sleeve 4, the movable sleeve 2, the drive mechanism 22, and the auxiliary components 3.

[0109] Preferably, the bottom of the support sleeve 4 is provided with a moving component 5, which includes a bearing base 51 and a moving wheel 52. The support sleeve 4 is fixed to the bearing base 51, and the bottom of the bearing base 51 is provided with a moving wheel 52, which is used to drive the bearing base 51 to move in the horizontal plane.

[0110] The movable sleeve 2 can be stably raised and lowered within the moving channel 41 of the supporting sleeve 4 under the coordinated drive of the drive mechanism 22 and the auxiliary component 3. The bearing mechanism 1 is connected to the upper end of the movable sleeve 2. The bearing mechanism 1 is used to directly or indirectly mount and fix the display device 100, such as an LCD monitor, a television, or a touch screen all-in-one machine.

[0111] The support mechanism 1 can be implemented in various ways. For example, it can be a simple mounting plate that is connected to a standard interface on the back of the display device 100 by bolts.

[0112] In a more preferred embodiment, the support mechanism 1 may further include one or more adjustable arm assemblies. The arm assemblies may include a first arm and a second arm connected to each other via hinge shafts, thereby allowing the display device 100 to perform multi-dimensional posture adjustments in addition to height adjustment, such as tilt angle, left and right rotation, and even landscape / portrait switching, to meet the user's optimal viewing angle.

[0113] The working process is as follows: When the user needs to adjust the height of the display device 100, the drive mechanism 22 of the lifting device is activated. The drive mechanism 22 drives the movable sleeve 2 to rise and fall, and the movable sleeve 2 directly drives the support mechanism 1 fixed to it to move together. Since the display device 100 is mounted on the support mechanism 1, its height is adjusted precisely and quickly. The fast response and smooth operation characteristics provided by the lifting device in Embodiment 1 are fully demonstrated here, enabling the user to easily and efficiently adjust the display device 100 to a comfortable height.

[0114] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A lifting device, characterized in that include: Support sleeve (4) with a moving channel (41) inside. The movable sleeve (2) is inserted into the moving channel (41); A drive mechanism (22) is connected to the movable sleeve (2) and is used to drive the movable sleeve (2) to move up and down along the moving channel (41); An auxiliary component (3) is disposed between the drive mechanism (22) and the movable sleeve (2), and is capable of providing a lifting force to the movable sleeve (2) along the lifting direction of the movable sleeve (2); The drive mechanism (22) has a receiving space (2231) extending along the lifting direction of the movable sleeve (2), and a portion of the auxiliary component (3) passes through the receiving space (2231).

2. The lift device of claim 1, wherein, At least one of the connections between the auxiliary component (3) and the drive mechanism (22) and between the auxiliary component (3) and the movable sleeve (2) is a rotatable connection.

3. The lift device of claim 1, wherein, The auxiliary component (3) is elastic, and the movable sleeve (2) can compress the auxiliary component (3) during the lifting process so that the auxiliary component (3) applies an elastic lifting force to the movable sleeve (2) in the lifting direction.

4. The lift device of claim 3, wherein, The auxiliary component (3) is a gas spring, which includes an outer cylinder (31) and a piston rod (32). The outer cylinder (31) is sleeved on the piston rod (32). One of the outer cylinder (31) and the piston rod (32) is connected to the movable sleeve (2), and the other of the outer cylinder (31) and the piston rod (32) is connected to the drive mechanism (22). Alternatively, the auxiliary component (3) may be a mechanical spring.

5. The lift device of claim 1, wherein, The drive mechanism (22) includes a drive member (221) and a threaded rod (223). The output end of the drive member (221) is connected to the threaded rod (223) and can drive the threaded rod (223) to rotate around its own axis. The movable sleeve (2) is connected to the outer periphery of the threaded rod (223) through a threaded engagement. The support sleeve (4) and the movable sleeve (2) are anti-rotationally fitted in the circumferential direction.

6. The lift device of claim 5, wherein, The movable sleeve (2) is provided with a nut sleeve (23), which is connected to the inner wall of the movable sleeve (2). The inner circumference of the nut sleeve (23) is threaded to the outer circumference of the threaded rod (223). When the threaded rod (223) rotates, it drives the nut sleeve (23) and the movable sleeve (2) to rise or fall.

7. The lift device of claim 5, wherein, The threaded rod (223) extends along its own axial direction to form the accommodating space (2231). The threaded rod (223) is provided with a limiting sleeve (213) inside, the limiting sleeve (213) is sleeved on the outer periphery of the auxiliary part (3) and abuts against the inner wall of the threaded rod (223); and / or, the threaded rod (223) is provided with a limiting sleeve (213) outside, the limiting sleeve (213) is sleeved on the outer periphery of the threaded rod (223) and abuts against the inner wall of the movable sleeve (2); The threaded rod (223) is provided with a limiting member (224) on its outer periphery. The limiting member (224) is used to provide radial limiting for the threaded rod (223). The limiting member (224) and the threaded rod (223) are connected by a bearing structure (225) and provide axial support to the threaded rod (223). The limiting sleeve (213) is fitted onto the upper part of the threaded rod (223) for the insertion of the auxiliary component (3); the limiting component (224) is fitted onto the lower part of the threaded rod (223).

8. The lift device of claim 7, wherein, The drive mechanism (22) further includes a converter (222), the input end of which is connected to the output end of the drive member (221), and the output end of which is connected to the threaded rod (223); The auxiliary component (3) is mounted on the adapter (222) or the threaded rod (223) via a first bearing (33), or the auxiliary component (3) is mounted on the adapter (222) or the threaded rod (223) in an anti-rotation manner. The bottom of the support sleeve (4) is provided with a connecting seat (43), which provides support to the limiting member (224) and the adapter (222); the adapter (222) or the threaded rod (223) provides support to the auxiliary member (3).

9. The lift device of claim 5, wherein, One end of the auxiliary component (3) is fixedly connected to the movable sleeve (2), and the other end of the auxiliary component (3) is rotatably connected to the drive mechanism (22); or, One end of the auxiliary component (3) is rotatably connected to the movable sleeve (2), and the other end of the auxiliary component (3) is fixedly or rotatably connected to the drive mechanism (22); or, The auxiliary component (3) is a gas spring, which includes an outer cylinder (31) and a piston column (32). The outer cylinder (31) is sleeved on the piston column (32). The end of the piston column (32) away from the outer cylinder (31) is rotatably connected to the movable sleeve (2). The threaded rod (223) is integrally formed on the outer wall of the outer cylinder (31).

10. The lift device of claim 1, wherein, The outer wall of the movable sleeve (2) is provided with a sliding member (211), which is slidably connected to the inner wall of the support sleeve (4); And / or, the movable sleeve (2) is provided with a rolling element (212) on the outside, and the rolling element (212) is rotatably connected to the inner wall of the support sleeve (4); Wherein: when only the slider (211) or only the roller (212) is provided, the number of the slider (211) or the roller (212) is set to multiple; when both the slider (211) and the roller (212) are provided, the number of the slider (211) is set to one or more, and the number of the roller (212) is set to one or more. At least one of the sliding elements (211) or at least one of the rolling elements (212) is attached to one end of the movable sleeve (2) that is retractably fitted with the support sleeve (4); at least one of the sliding elements (211) or at least one of the rolling elements (212) is attached to one end of the support sleeve (4) that is retractably fitted with the movable sleeve (2).

11. Lift according to any of claims 1-10, characterized in that The support sleeve (4) is provided with a buffer (42), and one end of the movable sleeve (2) can abut against the buffer (42); the drive mechanism (22) is electric or manual.

12. A display device support, characterized in that The device includes a support mechanism (1) and a lifting device as described in any one of claims 1-11, wherein the support mechanism (1) is connected to the movable sleeve (2), the support mechanism (1) is used to install the display device (100), and the movable sleeve (2) can adjust the height of the display device (100) by driving the support mechanism (1) to lift.

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