Lifting device and display

Abstract

The utility model provides a lifting device and a displayer. The lifting device comprises a sliding rail, a power assembly, a transmission assembly and a connecting piece. The power assembly comprises a fixing frame, a mandrel, an elastic piece and a first transmission wheel, the fixing frame is connected to the sliding rail, the mandrel is rotatably connected to the fixing frame, the elastic piece is wound around the mandrel and used for providing constant force for the mandrel, one end of the elastic piece is connected with the mandrel, the other end of the elastic piece is connected with the fixing frame, and the first transmission wheel is connected to the mandrel; the transmission assembly comprises a mounting frame, a one-way rotating mechanism and a second transmission wheel, the mounting frame is slidably mounted on the sliding rail and located at one end of the power assembly, and the one-way rotating mechanism is in transmission connection with the second transmission wheel and used for driving the second transmission wheel to rotate in one direction and limiting reverse rotation of the second transmission wheel; one end of the connecting piece is connected to the first transmission wheel, the other end of the connecting piece is connected to the second transmission wheel, and the connecting piece can be wound around the periphery of the first transmission wheel and used for driving the first transmission wheel to rotate through rotation of the second transmission wheel or stretching of the connecting piece.

Description

Technical Field

[0001] The present application relates to the technical field of display lifting and adjusting, and in particular to a lifting device and a display. Background Art

[0002] Most monitor lifting structures use a constant force spring, one end of which is connected to the monitor. The constant force spring provides tension to the monitor to offset the gravity on the monitor, so that the monitor is in a balanced state and remains in the same position after being adjusted to different heights. However, during the lifting process of the monitor, the constant force spring will be stretched longer, resulting in more space occupied by the monitor when installing the constant force spring. Utility Model Content

[0003] The present application provides a lifting device and a display to solve the problem of complicated assembly and disassembly procedures of two side panels of the display in the prior art.

[0004] In a first aspect, the present application provides a lifting device, comprising a slide rail, a power assembly, a transmission assembly and a connecting member, wherein the power assembly comprises a fixed frame, a spindle, an elastic member, and a first transmission wheel, wherein the fixed frame is connected to one end of the slide rail, the spindle is rotatably connected to the fixed frame, and the elastic member is wound around the spindle to provide a constant force on the spindle; one end of the elastic member is connected to the spindle, and the other end thereof is connected to the fixed frame, and the first transmission wheel is connected to the spindle; the transmission assembly comprises a mounting frame, a one-way rotation mechanism, and a second transmission wheel, wherein the mounting frame is slidably mounted on the slide rail and is located at one end of the power assembly, and the one-way rotation mechanism is transmission-connected to the second transmission wheel to drive the second transmission wheel to rotate in one direction and limit the second transmission wheel from reversing; one end of the connecting member is connected to the first transmission wheel, and the other end thereof is connected to the second transmission wheel, and the connecting member can be wound around the outer periphery of the first transmission wheel to drive the first transmission wheel to rotate by rotating the second transmission wheel or stretching the connecting member.

[0005] In a possible implementation, the lifting device has a descending state and a rising state;

[0006] The descending state is set to be a state in which the transmission assembly is away from the power assembly and the first transmission wheel unwinds the connecting member;

[0007] The raised state is set as a state in which the transmission assembly is close to the power assembly and the connecting member is wound around the first transmission wheel.

[0008] In a possible implementation manner, the lifting device has a pre-tightened state, and the pre-tightened state is set as a state in which the one-way rotation mechanism drives the first transmission wheel to rotate and the connecting member is wound around the first transmission wheel.

[0009] In a possible embodiment, the one-way rotation mechanism includes a worm wheel, a worm, and a transmission shaft. The worm is rotatably mounted on the mounting frame and is transmission-connected to the worm wheel. The transmission shaft is rotatably mounted on the mounting frame. The worm wheel and the second transmission wheel are both fixed to the transmission shaft, and the worm wheel, the second transmission wheel and the transmission shaft are coaxially arranged.

[0010] In a possible implementation, there are two slide rails, the two slide rails are parallel and spaced apart, the power assembly is fixed to one end of the two slide rails, the mounting frame is located between the two slide rails and is slidably connected to the two slide rails, respectively.

[0011] In a possible implementation, the transmission assembly further includes a sliding member, one end of which is connected to the mounting frame, and the other end of which is slidably connected to the slide rail.

[0012] In a possible embodiment, along the extension direction of the slide rail, the slide rail is provided with a plurality of first limiting protrusions at intervals, the sliding member is provided with a second limiting protrusion, the second limiting protrusion is located between two adjacent first limiting protrusions, and the plurality of first limiting protrusions are used to resist the second limiting protrusion.

[0013] In a possible embodiment, the slide rail includes a track portion and a shell portion, the sliding member is slidably connected to the track portion, the shell portion is provided with a receiving cavity, the receiving cavity receives the track portion, the sliding member, the first transmission wheel and the second transmission wheel, and the power assembly is fixed to one end of the shell portion.

[0014] In a possible implementation, a first winding groove is provided around the outer circumference of the first transmission wheel, a second winding groove is provided around the outer circumference of the second transmission wheel, one end of the connecting member is wound in the first winding groove, and the other end thereof is connected to the groove wall of the second winding groove.

[0015] In a second aspect, an embodiment of the present application further provides a display, comprising a connecting seat, a display body, and the above-mentioned lifting device, wherein one end of the connecting seat is connected to a mounting frame, and the other end thereof is connected to the display body.

[0016] The lifting device of the present application rotates the second transmission wheel through a one-way rotation mechanism, and the second transmission wheel then rotates the first transmission wheel through a connecting member, and then the first transmission wheel drives the mandrel to rotate, so that the elastic member is wound on the mandrel, and the elastic member can provide a constant force on the mandrel to balance the self-gravity of the transmission assembly, so that the transmission assembly can maintain the same position when it moves to any position relative to the power assembly. At the same time, during the process of the one-way rotation mechanism rotating the first transmission wheel, the connecting member will be continuously wound on the first transmission wheel. Subsequently, in the process of driving the transmission assembly away from or close to the power assembly, the connecting member will unwind or rewind accordingly to adjust the elongation of the connecting member to adapt to the transmission assembly that needs to move to different positions. Compared with the technical solution of using the elongation or shortening of the end of the elastic member to adapt to the transmission assembly that needs to move to different positions, the elastic member in the present application does not need to be stretched too long, reducing the space required for the elastic member. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the lifting device of the present application in one embodiment.

[0018] Figure 2 for Figure 1 An exploded schematic diagram of the lifting device in one embodiment.

[0019] Figure 3 for Figure 2 A partial enlarged schematic diagram of the lifting device corresponding to area A.

[0020] Figure 4 for Figure 1 A schematic structural diagram of a lifting device in a pre-tightened state in one embodiment.

[0021] Figure 5 for Figure 1 A schematic structural diagram of the lifting device in one embodiment in a descending state.

[0022] Figure 6 for Figure 2 A partial enlarged schematic diagram of the lifting device corresponding to area B.

[0023] Figure 7 FIG. 1 is a schematic three-dimensional diagram of a display according to an embodiment of the present application.

[0024] Figure 8 for Figure 7 FIG. 1 is a schematic diagram of a partial exploded structure of a display in one embodiment.

[0025] Description of main component symbols:

[0026] Display 200

[0027] Lifting device 100

[0028] First direction X

[0029] Second direction Y

[0030] The third direction Z

[0031] Slide 10

[0032] Shell 11

[0033] Accommodation chamber 111

[0034] Guide groove 112

[0035] Track 12

[0036] Chute 121

[0037] The first limiting protrusion 122

[0038] Power Components 20

[0039] Fixed frame 21

[0040] First mounting plate 211

[0041] Second mounting plate 212

[0042] Second cavity 213

[0043] Second protective shell 214

[0044] Mandrel 22

[0045] Elastic member 23

[0046] First transmission wheel 24

[0047] The first winding groove 241

[0048] First connecting hole 242

[0049] Transmission assembly 30

[0050] Mounting frame 31

[0051] Main body 311

[0052] Extension 312

[0053] First cavity 313

[0054] Rotating groove 314

[0055] First protective shell 315

[0056] One-way rotation mechanism 32

[0057] Drive shaft 321

[0058] Worm gear 322

[0059] Worm 323

[0060] Second transmission wheel 33

[0061] The second winding groove 331

[0062] The second connecting hole 332

[0063] Slider 34

[0064] Connecting protrusion 341

[0065] The second limiting protrusion 342

[0066] Connector 40

[0067] Display main body 50

[0068] Connecting seat 60

[0069] Base 70

[0070] Fastener 80

[0071] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0072] The following description will refer to the accompanying drawings to more fully describe the content of the present application. Shown in the accompanying drawings are exemplary embodiments of the present application. However, the present application can be implemented in many different forms and should not be construed as being limited to the exemplary embodiments set forth herein. These exemplary embodiments are provided to make the present application thorough and complete, and to fully convey the scope of the present application to those skilled in the art. Similar reference numerals represent identical or similar components.

[0073] The terms used herein are only used for the purpose of describing specific exemplary embodiments and are not intended to limit the present application. As used herein, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to also include the plural forms. In addition, when used herein, "including" and / or "comprising" and / or "having", integers, steps, operations, components and / or components, but do not exclude the existence or addition of one or more other features, regions, integers, steps, operations, components and / or groups thereof.

[0074] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which this application belongs. In addition, unless explicitly defined herein, terms such as those defined in general dictionaries should be interpreted as having a meaning consistent with their meaning in the relevant technology and the content of this application, and will not be interpreted as an idealized or overly formal meaning.

[0075] The specific implementation methods of the present application are further described in detail below with reference to the accompanying drawings.

[0076] like Figures 1 to 3 As shown, this embodiment provides a lifting device 100 , including a slide rail 10 , a power assembly 20 , a transmission assembly 30 and a connecting member 40 .

[0077] For the convenience of subsequent reading, the present application introduces a first direction X, a second direction Y, and a third direction Z to describe the embodiments of the present application. The first direction X, the second direction Y, and the third direction Z may be three non-parallel linear directions in space; further, the first direction X, the second direction Y, and the third direction Z may be three mutually perpendicular directions in a three-dimensional coordinate system (three-dimensional Cartesian coordinate system). In the subsequent embodiments, the first direction X is the X-axis direction of the coordinate axis of the three-dimensional coordinate system, the second direction Y is the Y-axis direction of the coordinate axis of the three-dimensional coordinate system, and the third direction Z is the Z-axis direction of the coordinate axis of the three-dimensional coordinate system.

[0078] There are two slide rails 10. The two slide rails 10 are arranged at intervals along the first direction X. The extension directions of the two slide rails 10 are both parallel to the third direction Z.

[0079] The power assembly 20 includes a fixing frame 21 , a spindle 22 , an elastic member 23 , and a first transmission wheel 24 .

[0080] The fixing frame 21 is located between the two slide rails 10 and connected to the top ends of the two slide rails 10. The axial direction of the core shaft 22 is parallel to the first direction X, and the core shaft 22 is rotatably connected to the fixing frame 21.

[0081] The elastic member 23 is a constant force spring, and its structural form includes but is not limited to a coil spring, which is used to provide a constant tension. The elastic member 23 is wound around the axis of the core shaft 22 and the outer peripheral surface of the core shaft 22, and one end of the elastic member 23 is connected to the core shaft 22, and the other end is connected to the fixed frame 21, so as to provide a constant force on the core shaft 22 through the elastic member 23. The size of the force is set to depend on the gravity of the power assembly 20 and other structures installed on the power assembly 20. The gravity of the power assembly 20 and other structures installed on the power assembly 20 is balanced by the force, ensuring that the power assembly 20 can maintain a balanced state when sliding to any state.

[0082] It is understandable that the force applied by the elastic member 23 to the core shaft 22 can be changed by replacing the elastic member 23 with a different model or adjusting the winding state of the elastic member 23 when storing energy.

[0083] The first transmission wheel 24 is connected to the core shaft 22 and is coaxially disposed with the core shaft 22 , and the first transmission wheel 24 and the core shaft 22 rotate synchronously.

[0084] The transmission assembly 30 includes a mounting frame 31 , a one-way rotation mechanism 32 , and a second transmission wheel 33 .

[0085] The mounting frame 31 is located between the two slide rails 10 , and opposite ends of the mounting frame 31 are slidably mounted on the two slide rails 10 along the first direction X. Along the third direction Z, the mounting frame 31 is located below the fixing frame 21 and can move relative to the fixing frame 21 .

[0086] The one-way rotation mechanism 32 is connected to the second transmission wheel 33 for driving the second transmission wheel 33 to rotate in one direction and restricting the second transmission wheel 33 from reversing. The connecting member 40 is a wire material with high tensile strength such as a steel wire rope or a nylon rope. One end of the connecting member 40 is connected to the first transmission wheel 24, and the other end is connected to the second transmission wheel 33. The connecting member 40 can be wound around the outer periphery of the first transmission wheel 24, and is used to drive the first transmission wheel 24 to rotate through the rotation of the second transmission wheel 33 or the stretching of the connecting member 40.

[0087] In this way, the second transmission wheel 33 is rotated by the one-way rotation mechanism 32, and the second transmission wheel 33 further rotates the first transmission wheel 24 through the connecting member 40, and then the first transmission wheel 24 drives the core shaft 22 to rotate, so that the elastic member 23 is wound on the core shaft 22. The elastic member 23 can provide a constant force on the core shaft 22 to balance the self-weight of the transmission assembly 30, so that when the transmission assembly 30 moves to any position relative to the power assembly 20, the transmission assembly 30 can maintain the same position. At the same time, when the one-way rotation mechanism 32 rotates the first transmission wheel 24, the connecting member 40 will be continuously wound on the first transmission wheel 24. Later, in the process of driving the transmission assembly 30 away from or close to the power assembly 20, the connecting member 40 will be unwound or rewound accordingly to adjust the elongation of the connecting member 40 to adapt to the transmission assembly 30 that needs to move to different positions. Compared to the technical solution of extending or shortening the end of the elastic member 23 to adapt the transmission assembly 30 that needs to move to different positions, the elastic member 23 in the present application does not need to be stretched too long, thereby reducing the space required for the elastic member 23 .

[0088] Please combine again Figures 2 to 5 In one embodiment, the lifting device 100 has a pre-tensioned state, a descending state and a raised state.

[0089] The pre-tightening state is set as a state in which the one-way rotating mechanism 32 drives the first transmission wheel 24 to rotate, and the connecting member 40 is wound around the first transmission wheel 24. When the lifting device 100 is in the pre-tightening state, the second transmission wheel 33 rotates continuously in one direction under the drive of the one-way rotating mechanism 32. At the same time, since the two ends of the connecting member 40 are respectively connected to the first transmission wheel 24 and the second transmission wheel 33, during the rotation of the second transmission wheel 33, the second transmission wheel 33 pulls the first transmission wheel 24 to rotate through the connecting member 40, and during the rotation of the first transmission wheel 24, the connecting member 40 will be continuously wound around the first transmission wheel 24. In addition, when the first transmission wheel 24 rotates, it will drive the mandrel 22 connected thereto to rotate synchronously, and during the rotation of the mandrel 22, it will drive the elastic member 23 wound around the outer periphery of the mandrel 22 to be wound tightly on the mandrel 22 until the degree of tightness of the elastic member 23 relative to the mandrel 22 reaches the expected state. In the expected state, the force provided by the elastic member 23 to the first transmission wheel 24 through the core shaft 22 can balance the force applied to the first transmission wheel 24 by the transmission assembly 30 and other structures installed thereon through the connecting member 40 under the action of their own gravity, so that the first transmission wheel 24 will not rotate in this balanced state to wind or unwind the connecting member 40.

[0090] It is worth noting that the one-way rotation mechanism 32 is used to drive the second transmission wheel 33 to rotate, so that the second transmission wheel 33 cannot rotate in the opposite direction. When the elastic member 23 is wound tightly on the core shaft 22, the elastic member 23 will not drive the second transmission wheel 33 to reverse through the core shaft 22, the first transmission wheel 24 and the connecting member 40 to release the force stored in the elastic member 23.

[0091] The descending state is set as a state where the transmission assembly 30 is away from the power assembly 20, and the first transmission wheel 24 unwinds the connecting member 40. When the lifting device 100 is in the descending state, the transmission assembly 30 moves downward under the action of an external force, thereby pulling the first transmission wheel 24 to unwind the connecting member 40, so that the connecting member 40 is stretched until the transmission assembly 30 moves downward to the expected position. At this time, the connecting member 40 is in a straightened state, and the force applied by the elastic member 23 to the first transmission wheel 24 is the same as the force applied by the transmission assembly 30 to the first transmission wheel 24, so that the first transmission wheel 24 does not rotate to perform a winding or unwinding action, the length of the connecting member 40 remains unchanged, and the transmission assembly 30 maintains balance under the tension provided by the connecting member 40, thereby maintaining the position of the transmission assembly 30 that has descended to the expected position unchanged.

[0092] The elevated state is set as a state in which the transmission assembly 30 is close to the power assembly 20, and the connecting member 40 is wound around the first transmission wheel 24. When the lifting device 100 is in the elevated state, the transmission assembly 30 moves upward under the action of an external force, and the distance between the transmission assembly 30 and the power assembly 20 is reduced, causing the connecting member 40 to bend and no longer straighten. At this time, the transmission assembly 30 cannot apply a force to the first transmission wheel 24 through the connecting member 40, resulting in the first transmission wheel 24 being only subjected to the winding force applied to it by the elastic member 23 through the core shaft 22, causing the first transmission wheel 24 to rotate and wind the connecting member 40 thereon, until the connecting member 40 located between the transmission assembly 30 and the power assembly 20 is in a straightened state. At this time, the force applied by the elastic member 23 to the first transmission wheel 24 is the same as the force applied by the transmission assembly 30 to the first transmission wheel 24, so that the first transmission wheel 24 will not rotate to perform the winding or unwinding action, and the length of the connecting member 40 remains unchanged. The transmission assembly 30 maintains balance under the pulling force provided by the connecting member 40, thereby maintaining the position of the transmission assembly 30 that has been raised to the expected position unchanged.

[0093] Please combine again Figures 2 to 5 In one embodiment, the mounting frame 31 includes a main body portion 311 and an extension portion 312 .

[0094] The main body 311 is a substantially square structure, and has two extensions 312 , both of which are connected to the top of the main body 311 . Along the first direction X, the two extensions 312 are arranged in parallel and spaced apart to form a first cavity 313 between the two extensions 312 .

[0095] The one-way rotation mechanism 32 is installed in the first cavity 313. Specifically, the one-way rotation mechanism 32 includes a worm wheel 322, a worm 323, and a transmission shaft 321.

[0096] The axis of the worm 323 extends in a direction parallel to the second direction Y. A rotation slot 314 is provided at the top of the main body 311, and the rotation slot 314 is connected to the first cavity 313. The worm 323 is rotatably received in the rotation slot 314, and along the third direction Z, the two ends of the worm 323 are rotatably connected to opposite sides of the main body 311. In particular, the end of the worm 323 extends out of the main body 311, and a connection slot is provided, so that after another element is inserted into the connection slot, the user holds the element and rotates it to drive the worm 323 to rotate.

[0097] The worm wheel 322 is located above the worm 323 and is transmission-connected to the worm 323, and the worm wheel 322 is driven to rotate by the worm 323. The axial direction of the worm wheel 322 is parallel to the first direction X, and the transmission shaft 321 passes through the worm wheel 322 and is fixedly connected to the worm wheel 322, so that the transmission shaft 321 and the worm wheel 322 rotate synchronously. The two ends of the transmission shaft 321 are rotatably connected to the two extensions 312, and the two ends of the transmission shaft 321 pass through the extensions 312, so that the two second transmission wheels 33 are respectively fixed to the two ends of the transmission shaft 321 passing through the extensions 312, so that the two second transmission wheels 33 are both located outside the mounting frame 31, and the two second transmission wheels 33 rotate synchronously with the transmission shaft 321.

[0098] In particular, the worm gear 322 , the second transmission wheel 33 and the transmission shaft 321 are coaxially arranged.

[0099] Furthermore, the mounting frame 31 further includes two first protective shells 315 . Along the second direction Y, the two first protective shells 315 are respectively disposed on opposite sides of the main body 311 .

[0100] Please combine again Figures 2 to 5 In one embodiment, the fixing frame 21 includes a first mounting plate 211 and a second mounting plate 212. There are two first mounting plates 211, and along the first direction X, the two first mounting plates 211 are arranged in parallel and spaced apart to form a second cavity 213 between the two first mounting plates 211.

[0101] The mandrel 22 is located in the second cavity 213, and the two ends of the mandrel 22 are rotatably connected to the two first mounting plates 211. The two ends of the mandrel 22 pass through the two first mounting plates 211, and the two ends of the mandrel 22 passing through the first mounting plates 211 are fixed with first transmission wheels 24. The first transmission wheel 24 is coaxially arranged with the mandrel 22, and the two rotate synchronously.

[0102] There are two second mounting plates 212 , and along the third direction Z, the two second mounting plates 212 are respectively covered at opposite ends of the two first mounting plates 211 and connect the two first mounting plates 211 . In addition, the two second mounting plates 212 are both fixed to the slide rail 10 .

[0103] The elastic member 23 is received in the second cavity 213 and is wound around the outer circumference of the core shaft 22. One end of the elastic member 23 is fixed to the outer circumference of the core shaft 22, and the other end of the elastic member 23 is fixed to the second mounting plate 212 located above.

[0104] Furthermore, the fixing frame 21 further includes a second protective shell 214. The second protective shell 214 is a "U"-shaped structure and is disposed on both sides of the second cavity 213.

[0105] Please combine again Figure 6 , and see Figure 2 and Figure 3 In one embodiment, the two slide rails 10 each include a track portion 12 and a shell portion 11 .

[0106] The extension direction of the shell 11 is parallel to the third direction Z. The two shells 11 are arranged in parallel and spaced apart along the first direction X. The tops of the two shells 11 are each provided with a receiving cavity 111, which extends downward from the top of the shell 11 along the third direction Z. The fixing frame 21 is fixed to the tops of the two shells 11.

[0107] A guide groove 112 is provided on the adjacent side of the two shells 11, and the guide groove 112 is connected to the receiving cavity 111. The track portion 12 is fixed in the receiving cavity 111, and the extension length of the track portion 12 is less than the extension length of the shell 11. A slide groove 121 is provided on the adjacent side of the two track portions 12.

[0108] The transmission assembly 30 further includes a sliding member 34, and there are two sliding members 34. Connecting protrusions 341 are provided on opposite sides of the main body 311 along the first direction X. The connecting protrusions 341 pass through the guide grooves 112 and extend into the receiving cavity 111. The sliding member 34 is fixed to the end of the connecting protrusion 341 extending into the receiving cavity 111, and is slidably received in the slide groove 121 to slide relative to the track portion 12.

[0109] Furthermore, the receiving cavity 111 also receives the first transmission wheel 24 and the second transmission wheel 33 , so as to hide the first transmission wheel 24 , the second transmission wheel 33 and the connecting member 40 in the shell 11 , thereby improving the aesthetics.

[0110] Please combine again Figure 6 , and see Figure 2 and Figure 3 In one embodiment, along the third direction Z, the rail portion 12 is provided with a plurality of first limiting protrusions 122 at intervals, and the plurality of first limiting protrusions 122 are located in the slide groove 121. The sliding member 34 is provided with a second limiting protrusion 342, which is located at the bottom end of the sliding member 34 and slides between two adjacent first limiting protrusions 122. The plurality of first limiting protrusions 122 are used to abut against the second limiting protrusion 342 to limit the sliding range of the second limiting protrusion 342, thereby limiting the lifting range of the transmission assembly 30.

[0111] The manner in which the multiple first limiting protrusions 122 are arranged at intervals can adjust the lifting area of ​​the transmission assembly 30 .

[0112] Please combine again Figures 3 to 5In one embodiment, a first winding groove 241 is formed around the outer circumference of the first transmission wheel 24, and a second winding groove 331 is formed around the outer circumference of the second transmission wheel 33. One end of the connecting member 40 is wound in the first winding groove 241 and fixed to the bottom wall of the first winding groove 241. The other end of the connecting member 40 is connected to the bottom wall of the second winding groove 331.

[0113] Furthermore, a first connecting hole 242 is formed in the side wall of the first winding groove 241, and a second connecting hole 332 is formed in the side wall of the second winding groove 331. The first connecting hole 242 is connected to the first winding groove 241, and the second connecting hole 332 is connected to the second winding groove 331, so that the two ends of the connecting member 40 are respectively inserted into the first connecting hole 242 and the second connecting hole 332, and then surround the side walls of the first winding groove 241 and the second winding groove 331 once, and then are respectively fixed to the first transmission wheel 24 and the second transmission wheel 33.

[0114] like Figure 7 and Figure 8 See Figure 3 The embodiment of the present application also provides a display 200. The display 200 includes a connection base 60, a display body 50, and the lifting device 100. One end of the connection base 60 is connected to the mounting frame 31, and the other end is connected to the display body 50. The end of the display body 50 away from the connection base 60 is used to install a display screen (not shown in the figure).

[0115] A fastener 80 is fixed to the front side of the main body 311 along the second direction Y. The fastener 80 is a bolt or a screw. One end of the connecting seat 60 is fixed to the fastener 80 to make the display body 50 and the mounting frame 31 relatively fixed and then slide synchronously with the mounting frame 31 .

[0116] The display 200 further includes a base 70 , and the bottom ends of the two shell parts 11 are detachably connected to the top end of the base 70 .

[0117] In the above, the specific embodiments of the present application are described with reference to the accompanying drawings. However, those skilled in the art will appreciate that various changes and substitutions may be made to the specific embodiments of the present application without departing from the scope of the present application. These changes and substitutions are all within the scope defined by the present application.

Claims

1. A lifting device, characterized in that: include: Slide rails; A power assembly, comprising a fixed frame, a core shaft, an elastic member, and a first transmission wheel, wherein the fixed frame is connected to one end of the slide rail, the core shaft is rotatably connected to the fixed frame, the elastic member is wound around the core shaft, and is used to provide a constant force to the core shaft, one end of the elastic member is connected to the core shaft, and the other end thereof is connected to the fixed frame, and the first transmission wheel is connected to the core shaft; A transmission assembly, comprising a mounting frame, a one-way rotation mechanism, and a second transmission wheel, wherein the mounting frame is slidably mounted on the slide rail and is located at one end of the power assembly, and the one-way rotation mechanism is transmission-connected to the second transmission wheel to drive the second transmission wheel to rotate in one direction and to limit the second transmission wheel from reversing; A connecting member, one end of which is connected to the first transmission wheel, and the other end of which is connected to the second transmission wheel. The connecting member can be wound around the outer circumference of the first transmission wheel to drive the first transmission wheel to rotate through the rotation of the second transmission wheel or the stretching of the connecting member.

2. The lifting device according to claim 1, characterized in that: The lifting device has a descending state and a rising state; the descending state is set as the state in which the transmission component is away from the power component and the first transmission wheel unwinds the connecting member; the rising state is set as the state in which the transmission component is close to the power component and the connecting member is wound around the first transmission wheel.

3. The lifting device according to claim 1, characterized in that: The lifting device has a pre-tightened state, and the pre-tightened state is set as a state in which the one-way rotation mechanism drives the first transmission wheel to rotate and the connecting member is wound around the first transmission wheel.

4. The lifting device according to claim 1, characterized in that: The one-way rotation mechanism includes a worm wheel, a worm, and a transmission shaft. The worm is rotatably mounted on the mounting frame and is transmission-connected to the worm wheel. The transmission shaft is rotatably mounted on the mounting frame. The worm wheel and the second transmission wheel are both fixed to the transmission shaft, and the worm wheel, the second transmission wheel and the transmission shaft are coaxially arranged.

5. The lifting device according to claim 1, characterized in that: There are two slide rails, which are parallel and spaced apart. The power assembly is fixed to one end of the two slide rails. The mounting frame is located between the two slide rails and is slidably connected to the two slide rails, respectively.

6. The lifting device according to claim 1, characterized in that: The transmission assembly also includes a sliding member, one end of which is connected to the mounting frame, and the other end of which is slidably connected to the slide rail.

7. The lifting device according to claim 6, characterized in that: Along the extension direction of the slide rail, the slide rail is provided with a plurality of first limiting protrusions at intervals, the sliding member is provided with a second limiting protrusion, the second limiting protrusion is located between two adjacent first limiting protrusions, and the plurality of first limiting protrusions are all used to resist the second limiting protrusion.

8. The lifting device according to claim 6, characterized in that: The slide rail includes a track portion and a shell portion, the sliding member is slidably connected to the track portion, the shell portion is provided with a receiving cavity, the receiving cavity receives the track portion, the sliding member, the first transmission wheel and the second transmission wheel, and the power assembly is fixed to one end of the shell portion.

9. The lifting device according to claim 1, characterized in that: The first transmission wheel is provided with a first winding groove on its outer circumference, the second transmission wheel is provided with a second winding groove on its outer circumference, one end of the connecting member is wound in the first winding groove, and the other end thereof is connected to the groove wall of the second winding groove.

10. A display, characterized in that: It comprises a connecting seat, a display body, and a lifting device as claimed in any one of claims 1 to 9, wherein one end of the connecting seat is connected to the mounting frame, and the other end thereof is connected to the display body.

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