CN219975936U - Lifting system for lifting display screen - Google Patents

Abstract

The utility model belongs to the technical field of lifting display screens, and relates to a lifting system for lifting the display screen, which comprises a mounting shell, wherein a mounting cavity is formed in the mounting shell, and a lifting access opening is formed in the top of the mounting shell and is communicated with the mounting cavity and used for allowing the display screen to enter and exit the mounting cavity; the lifting mechanism is positioned in the mounting cavity, comprises a lifting assembly, a middle connecting piece and at least one counterweight assembly, wherein the lifting assembly, the middle connecting piece and the counterweight assembly are all arranged on the mounting shell, the lifting assembly comprises a lifting frame and a first driving assembly, the first driving assembly is arranged in the mounting cavity, and the lifting frame is arranged in the mounting cavity in a sliding manner and is connected with the display screen and the output end of the first driving assembly; one end of the middle connecting piece is connected with the lifting frame, and the other end of the middle connecting piece is connected with the counterweight assembly, so that dynamic balance is formed between the counterweight assembly and the display screen, and the counterweight assembly can assist the display screen to ascend through self gravity when the lifting frame is driven by the first driving assembly to move.

Description

Lifting system for lifting display screen

Technical Field

The utility model relates to the technical field of lifting display screens, in particular to a lifting system for lifting a display screen.

Background

With the rapid development of the intelligent process, in shops and stores, a display screen is often used to play video advertisements so as to introduce storefronts in the shops and products in the stores.

The existing lifting display screen is generally driven by a motor directly, namely, the display screen is driven by the motor to lift, and the gravity effect of the display screen is overcome when the display screen lifts, so that the load of the motor-driven display screen when the display screen lifts is easily caused to be large, and the work load of the motor-driven display screen when the display screen lifts is increased.

Disclosure of Invention

The embodiment of the utility model aims to effectively solve the technical problems of high power load and high cost of the existing lifting display screen.

In order to solve the above technical problems, an embodiment of the present utility model provides a lifting system for lifting a display screen, which adopts the following technical scheme:

this a lift system for display screen goes up and down includes: the installation shell is internally provided with an installation cavity, and the top of the installation shell is provided with a lifting access; the lifting access opening is communicated with the mounting cavity and used for allowing the display screen to enter and exit the mounting cavity; the lifting mechanism is positioned in the mounting cavity and comprises a lifting assembly, a middle connecting piece and at least one counterweight assembly, wherein the lifting assembly and the counterweight assembly are both arranged on the mounting shell, the lifting assembly comprises a lifting frame and a first driving assembly, the first driving assembly is arranged on the mounting shell and positioned in the mounting cavity, and the lifting frame is slidably arranged in the mounting cavity and is connected with a display screen and an output end of the first driving assembly; the middle connecting piece is arranged on the installation shell and located in the installation cavity, one end of the middle connecting piece is connected with the lifting frame, the other end of the middle connecting piece is connected with the counterweight assembly, so that dynamic balance is formed between the counterweight assembly and the display screen, and the counterweight assembly ascends through self gravity to assist the display screen when the lifting frame is driven by the first driving assembly to move.

In the lifting system for lifting the display screen according to an embodiment of the present utility model, the intermediate connecting member is a flexible connecting member.

In the lifting system for lifting the display screen according to an embodiment of the utility model, the first driving component comprises a flexible transmission part and first lifting fixing blocks, the flexible transmission part is arranged at two sides of the first driving component, the first lifting fixing blocks are arranged on the lifting frame along the extending direction of the flexible transmission part, the flexible transmission part is inserted into the lifting frame, and the lifting frame drives the display screen to lift through the flexible transmission part of the first driving component.

In the lifting system for lifting the display screen according to an embodiment of the utility model, 2 to 3 weight assemblies are provided, and each weight assembly is located in the installation cavity and is arranged on the installation shell.

In the lifting system for lifting the display screen according to an embodiment of the present utility model, the counterweight assembly includes a guide slide rail and a counterweight, and the guide slide rail is disposed in the installation housing along the lifting direction of the display screen; the balancing weight is arranged on the guide sliding rail in a sliding manner along the length direction of the guide sliding rail, is connected with the other end of the middle connecting piece and is positioned at the top end of the guide sliding rail; when the display screen is lifted, the balancing weight slides along the guide sliding rail and in the opposite direction with the display screen.

In the lifting system for lifting the display screen according to an embodiment of the present utility model, the counterweight assembly further includes a second lifting fixing block; the second lifting fixing block is arranged on the lifting frame along the extending direction of the middle connecting piece, is inserted with the middle connecting piece, and fixes the middle connecting piece on the lifting frame.

In the lifting system for lifting the display screen according to an embodiment of the utility model, the lifting mechanism further comprises a support plate, and the support plate is located in the installation cavity, is arranged on the installation shell, and is fixed below the lifting frame.

In the lifting system for lifting the display screen according to an embodiment of the utility model, the lifting mechanism further includes a limiting elastic member, and the limiting elastic member is disposed in the installation shell and located between the lifting frame and the support plate, so as to assist the lifting of the display screen by means of a rebound force when the display screen is lifted.

In the lifting system for lifting the display screen according to an embodiment of the utility model, the lifting system further comprises a protection frame, and the protection frame is located in the installation cavity and is arranged on the lifting frame, so as to accommodate and protect the display screen.

In the lifting system for lifting the display screen according to an embodiment of the utility model, the lifting system comprises a touch screen, and the touch screen is located in the installation cavity and is arranged on the lifting frame and used for controlling the display content of the display screen.

Compared with the prior art, the lifting system for lifting the display screen has the following main beneficial effects:

this a lift system for display screen goes up and down utilizes the counter weight subassembly in the elevating system, forms dynamic balance through intermediate junction spare and display screen to when first drive assembly drive crane removes, make counter weight subassembly through self gravity auxiliary display screen rise, when first drive assembly drive display screen rises from this, first drive assembly's work load can be reduced, and then is favorable to guaranteeing that the power load when this lift system rises is less.

Drawings

For a clearer description of the solution of the utility model, a brief description will be given below of the drawings that are needed in the description of the embodiments, which are some embodiments of the utility model, and from which, without the inventive effort, further drawings can be obtained for a person skilled in the art, in which:

FIG. 1 is a schematic elevational view of a lift system for lifting a display screen in accordance with one embodiment of the present utility model, with a main vision panel of a mounting case removed;

FIG. 2 is a schematic view of the lift mechanism of the lift system for lifting a display screen of FIG. 1 with intermediate connectors and counterweight assemblies removed;

FIG. 3 is a schematic view of the elevation mechanism of the lift system for lifting the display of FIG. 1;

FIG. 4 is a schematic view of the right side ejection mechanism of the lift system for lifting the display of FIG. 1;

fig. 5 is a schematic view of the intermediate connector and counterweight assembly of the lift system for lifting a display screen of fig. 1.

The reference numerals in the drawings are as follows:

100. the lifting system is used for lifting the display screen; 200. a display screen;

2. a mounting shell; 21. lifting the access opening; 22. a protective frame; 23. a rotating shaft; 24. a roll-over door;

3. a lifting mechanism; 31. a lifting assembly; 311. a first drive assembly; 3111. a driving source; 3112. a driving wheel; 3113. driven wheel; 3114. a flexible transmission member; 3115. a first lifting fixing block; 3116. a tensioning wheel; 312. a lifting frame; 313. a first fixing frame; 314. a laser lift sensor; 315. a slide rail; 316. a guide block; 32. an intermediate connection; 33. a counterweight assembly; 331. balancing weight; 332. a second lifting fixing block; 333. a third lifting fixing block; 334. a guide rail; 34. a support plate; 35. a limit elastic member;

4. an elevation mechanism; 41. an elevation assembly; 411. a second drive assembly; 412. a transmission link; 413. the second fixing frame; 42. a laser elevation sensor;

5. an ejection mechanism; 51. an ejection assembly; 511. an electric cylinder; 512. a first slide rail; 5121. a first limiting block; 513. a second slide rail; 5131. a second limiting block; 52. ejecting a connecting rod; 521. a connecting rod; 522. an ejector rod; 523. a backing plate; 5231. a guide limit groove;

6. a touch screen.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs; the terms used in the specification are used herein for the purpose of describing particular embodiments only and are not intended to limit the present utility model, for example, the orientations or positions indicated by the terms "length", "width", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are orientations or positions based on the drawings, which are merely for convenience of description and are not to be construed as limiting the present utility model.

The terms "comprising" and "having" and any variations thereof in the description of the utility model and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion; the terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order. The meaning of "a plurality of" is two or more, unless specifically defined otherwise.

In the description of the utility model and the claims and the above figures, when an element is referred to as being "fixed" or "mounted" or "disposed" or "connected" to another element, it can be directly or indirectly on the other element. For example, when an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element.

Furthermore, references herein to "an embodiment" mean that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present utility model. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments, it being understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

An embodiment of the present utility model provides a lifting system 100 for lifting a display screen, as shown in fig. 1 to 5, the lifting system 100 for lifting a display screen includes a mounting shell 2, a lifting mechanism 3 and a roll-over door 24, wherein a mounting cavity (not shown) is formed in the mounting shell 2, and a lifting access 21 (see fig. 2) is formed at the top of the mounting shell, and the lifting access 21 is communicated with the mounting cavity for allowing the display screen 200 to enter and exit the mounting cavity.

It should be noted that, in this embodiment, the display screen 200 and the lifting mechanism 3 may be installed in the installation cavity, and the display screen 200 may be lifted out of the installation housing 2 through the lifting access 21 or enter the installation housing 2 by the driving of the lifting mechanism 3, and in short, the display screen 200 may be moved into and out of the installation cavity through the lifting access 21.

As shown in fig. 1, 2 and 5, the lifting mechanism 3 includes a lifting assembly 31, an intermediate connector 32 and at least one counterweight assembly 33, and the lifting assembly 31 and the counterweight assembly 33 are both located in the mounting cavity and disposed on the mounting shell 2. The lifting assembly 31 includes a lifting frame 312 and a first driving assembly 311; the first driving component 311 is arranged on the mounting shell 2 and is positioned in the mounting cavity; the lifting frame 312 is slidably disposed in the mounting cavity and is connected to the display screen 200 and the output end of the first driving assembly 311. As can be appreciated, the lifting frame 312 is driven by the first driving component 311 to drive the display screen 200 to perform lifting motion.

As shown in fig. 1, 2 and 5, the middle connecting piece 32 is located in the installation cavity and is arranged on the installation shell 2, one end of the middle connecting piece 32 is connected with the lifting frame 312, the other end is connected with the counterweight assembly 33, so that dynamic balance is formed between the counterweight assembly 33 and the display screen, and when the first driving assembly 311 drives the lifting frame 32 to move, the counterweight assembly 33 can ascend through self gravity to assist the display screen.

In summary, compared with the prior art, the lifting system 100 for lifting a display screen has at least the following advantages:

the lifting system 100 for lifting the display screen utilizes the counterweight assembly 33 in the lifting mechanism 3 to form dynamic balance with the display screen 200 through the middle connecting piece 32, so that when the first driving assembly 311 drives the lifting frame 312 to move, the counterweight assembly 33 can assist the display screen 200 to lift through self gravity, thus when the first driving assembly 311 drives the display screen 200 to lift, the work load of the first driving assembly 311 can be reduced, and the lifting system 100 is beneficial to ensuring that the power load is smaller when the lifting system 100 lifts.

In order to better understand the solution of the present utility model by those skilled in the art, the following description will clearly and completely describe the solution of the embodiment of the present utility model with reference to fig. 1 to 5.

Further, as shown in fig. 1 to 5, a top plate (not shown) of the installation housing 2 is provided with a lift gate 21, wherein the lift gate 21 is a square hole, the lift gate 21 is vertically aligned with the display screen 200, and the display screen 200 passes through the lift gate 21 to perform a lifting motion inside and outside the installation housing 2. Of course, in other embodiments, the lift gate 21 may be a hole with other shapes.

The installation shell 2 is mainly used for supporting the protection display screen 200, a protection frame 22 is arranged in the installation shell 2, and a rotating shaft 23 is arranged at the bottom end of the protection frame 22; the display screen 200 is arranged inside the protective frame 22, and the protective frame 201 is used for preventing the display screen 200 from being damaged due to collision in the lifting process; the installation shell 2 further comprises a roll-over door 24, wherein the roll-over door 24 is rotatably arranged on the top plate of the installation shell 2 and embedded at the lifting access opening 21 on the top plate of the installation shell 2 so as to cover the lifting access opening 21 on the top plate of the installation shell 2.

As shown in fig. 1 and 2, the lifting mechanism 3 includes a lifting assembly 31, and the lifting assembly 31 includes a first driving assembly 311 and a lifting frame 312; the first driving component 311 is located in the installation cavity and is arranged on the installation shell 2, the first driving component 311 is in driving connection with the lifting frame 312, the lifting frame 312 is located below the display screen 200 and is arranged on the installation shell 2 in a sliding mode, the top end of the lifting frame is connected with the bottom end of the protection frame 22, the two sides of the lifting frame are in rotating connection with the rotating shaft 23, and the lifting frame 312 can lift under the driving of the first driving component 311 and drives the display screen 200 to lift.

Specifically, as shown in fig. 1 and 5, the lifting assembly 31 further includes a first fixing frame 313, a laser lifting sensor 314, and a sliding rail 315; the first fixing frame 313, the laser lifting sensor 314 and the sliding rail 35 are all positioned in the mounting cavity, the first fixing frame 33 is arranged on the bottom plate of the mounting shell 2, the laser lifting sensor 314 and the sliding rail 35 are arranged on the mounting shell 2, and the lifting frame 312 is arranged on the sliding rail 315 in a sliding manner; the laser lifting sensor 314 can sense the real-time lifting position of the display screen 200, and feed information back to the control main board in real time (the control main board is in the prior art, and can be arranged at a suitable position according to actual needs in the present utility model in an electrical connection manner, so that specific description is not made in this example), so as to control the first driving component 311 in real time to drive the lifting frame 312 to drive the display screen 200 to lift or descend to a preferred display height.

Further, as shown in fig. 1 and 5, the first driving assembly 311 includes a driving source 3111, a driving wheel 3112, a driven wheel 3113, a flexible transmission member 3114, a first lifting fixing block 3115 and a tensioning wheel 3116, wherein the driving source 3111, the driving wheel 3112 and the tensioning wheel 3118 are all disposed on the first fixing frame 313, the driven wheel 3113 is disposed on an inner top plate of the mounting housing 2, the tensioning wheel 3118 is disposed between the driving wheel 3112 and the driven wheel 3113, and the flexible transmission member 3114 is disposed between the driving wheel 3112, the driven wheel 3113 and the tensioning wheel 3118 and disposed on two sides of the first driving assembly 311; the first lifting fixing block 3115 is disposed on the lifting frame 312 along the extending direction of the flexible transmission member 3114, and is inserted with the flexible transmission member 3114, and fixes the flexible transmission member 3114 on the lifting frame 312, and the lifting frame 312 drives the display screen 200 to lift through the flexible transmission member 3114 of the first driving assembly 311; the output end of the driving source 3111 is in driving connection with a driving wheel 3112, and the driving wheel 3112 is in driving connection with a tensioning wheel 3118 and a driven wheel 3113 in sequence through a flexible driving piece 3114.

In addition, as shown in fig. 1, 2 and 5, the middle connecting piece 32 is a flexible connecting piece, 2 to 3 weight assemblies 33 are provided, each weight assembly 33 is located in the installation cavity and is arranged on the installation shell 2, and the distance between each weight assembly 33 is the same; the counterweight assembly 33 comprises a counterweight 331, a second lifting fixed block 332, a third lifting fixed block 333 and a guide sliding rail 334, wherein the guide sliding rail 334 is arranged in the installation 2 shells along the lifting direction of the display screen 200; the balancing weight 331 is slidably disposed on the guide sliding rail 334 along the length direction of the guide sliding rail 334, and is connected with the other end of the intermediate connecting piece 32 and is located at the top end of the guide sliding rail 334; when the display screen is lifted, the balancing weight 331 slides along the guide sliding rail 334 in the opposite direction to the display screen; the second lifting fixing block 332 is disposed on the lifting frame 312 along the extending direction of the intermediate connecting piece 32, is inserted with the intermediate connecting piece 32, and fixes the intermediate connecting piece 32 on the lifting frame 312, the third lifting fixing block 333 is disposed on the balancing weight 331 along the extending direction of the intermediate connecting piece 32, and fixes the intermediate connecting piece 32 on the lifting frame 312, and the balancing weight assembly 33 forms dynamic balance with the display screen 200 through the intermediate connecting piece 32.

In particular, in this embodiment, as shown in fig. 1, 2 and 5, in order to implement the lifting function of the lifting mechanism 3, when the driving source 3111 is started, the driving source 3111 outputs driving force from the output end to the driving wheel 3112, the driving wheel 3112 sequentially transmits the driving force to the tensioning wheel 3118 and the driven wheel 3113 through the flexible transmission member 3114, at this time, the flexible transmission member 3114 moves along with rotation of the driving wheel 3112, the driven wheel 3113 and the tensioning wheel 3118, the flexible transmission member 3114 is fixed to the lifting frame 32 by the first lifting fixing block 3115, the lifting frame 312 lifts along with movement of the flexible transmission member 3114 and drives the display screen 200 to lift, at this time, the weight assembly 33 is in a dynamic balance state with the display screen 200 through the intermediate connection member 32, and when the display screen 200 performs lifting movement, the weight assembly 33 simultaneously performs relative movement, and the display screen 200 is lifted by self gravity; wherein, after the flexible transmission piece 3114 works for a period of time, deformation is easy to occur, at this time, the tensioning wheel 3118 can adjust the initial tension of the flexible transmission piece 3114 in time, and transmission of driving force is ensured.

Further, the lifting mechanism 3 further comprises a supporting plate 34 and a limiting elastic piece 35, wherein the supporting plate 34 is positioned in the mounting cavity, is arranged on the mounting shell 2 and is fixed below the lifting frame 312; the limiting elastic member 35 is disposed in the installation shell 2 and located between the lifting frame 312 and the supporting plate 34, the limiting elastic member 35 is connected with the lifting frame 312, the other end of the limiting elastic member is connected with the supporting plate 34, and the limiting elastic member 35 is in a compressed state in a normal state, so that when the display screen 200 rises, the display screen 200 is assisted to rise by means of self-rebound force.

Still further, the lifting system 100 for lifting a display screen further includes a touch screen 6, where the touch screen 6 is located in the installation cavity and is disposed on the lifting frame 312, and is used for controlling the display content of the display screen; the lifting assembly 31 further comprises a guide block 316, wherein the guide block 316 is arranged on the lifting frame 312 along the extending direction of the sliding rail 315, and is inserted with the sliding rail 315; the guide block 316 limits the movement direction of the lifting frame 312 on the sliding rail 315 and the maximum distance the lifting frame 312 can be lifted or lowered.

As shown in fig. 3, the elevation mechanism 4 includes an elevation assembly 41, and the elevation assembly 41 is disposed on the lifting frame 312; the elevation angle assembly 41 comprises a second driving assembly 411, a transmission connecting rod 412 and a second fixing frame 413, wherein the second driving assembly 411 and the transmission connecting rod 412 are arranged on the lifting frame 312, the second driving assembly 411 is connected with the bottom end of the transmission connecting rod 412, and the top end of the transmission connecting rod 412 is connected with the display screen 200; the transmission link 412 rotates under the driving of the second driving component 411 to drive the display screen 200 to adjust the display angle.

Specifically, the second fixing frame 413 is disposed at a middle position of the lifting frame 312 in a penetrating manner, the second driving component 411 is disposed at one side of the second fixing frame 413 and penetrates the lifting frame 312, and the transmission link 412 is disposed at the other side of the second fixing frame 413; the output end of the second driving component 411 penetrates through the second fixing frame 413 and is in driving connection with the transmission connecting rod 412, the top end of the transmission connecting rod 412 is fixedly connected with the rotating shaft 23 at the bottom end of the protection frame 22, the output end of the second driving component 411 transmits driving force to the transmission connecting rod 412 to drive the transmission connecting rod 412 to rotate, the transmission connecting rod 412 drives the rotating shaft 23 to rotate, and the rotating shaft 23 simultaneously drives the display screen 200 wrapped and protected by the protection frame 22 to rotate so as to achieve a preferred display angle of the display screen 200.

In addition, the elevation mechanism 4 further includes a laser elevation sensor 42, where the laser elevation sensor 42 is disposed on the lifting frame 312, and the laser elevation sensor 42 can sense a real-time lifting position of the display screen 200 and feed information back to a control main board in real time (because the control main board belongs to the prior art and can be disposed at a suitable position according to actual needs in the present utility model in an electrically connected manner, which is not specifically described in this example), the control main board can control the transmission link 412 to rotate, and the transmission link 412 drives the rotation shaft 23 to rotate, and the rotation shaft 23 simultaneously drives the display screen 200 wrapped and protected by the protection frame 22 to adjust a pitch angle so as to achieve a preferred display angle of the display screen 200.

As shown in fig. 4, the ejection mechanism 5 includes an ejection assembly 51, the ejection assembly 51 is disposed in the installation shell 2 and is located at the periphery of the protection frame 22 of the display screen 200, the ejection assembly 51 includes two electric cylinders 511, a first sliding rail 512 and a second sliding rail 513, the electric cylinders 511 are respectively disposed at left and right sides of the installation shell 2, the first sliding rail 512 and the second sliding rail 513 are also respectively disposed at left and right sides of the installation shell 2, and the upper and lower ends of the first sliding rail 512 and the second sliding rail 513 are respectively provided with a first limiting block 5121 and a second limiting block 5131; the two electric cylinders 511 are respectively arranged on the first slide rail 512 and the second slide rail 513 in a sliding way, and the top ends of the two electric cylinders 511 are respectively connected with the left side and the right side of the lifting frame 312; the electric cylinder 511 is driven by the first driving component 311 to lift along the first sliding rail 512 and the second sliding rail 513.

In this embodiment, as shown in fig. 4, in order to realize the automatic ejection function of the ejection mechanism 5, the ejection mechanism 5 further includes two ejection links 52, the two ejection links 52 are respectively disposed on the left and right sides of the inside of the installation shell 2, and one side of the ejection link 52 is fixedly connected with the electric cylinder 511; the ejector connecting rod 52 comprises a connecting rod 521, an ejector rod 522 and a base plate 523, wherein the connecting rod 521 and the ejector rod 522 are respectively arranged at the left side and the right side of the inside of the installation shell 2, the base plate 523 is arranged between the connecting rod 521 and the ejector rod 522 and is fixedly connected at the left side and the right side of the inside of the installation shell 2, a guide limit groove 5231 is formed in the base plate 523, the guide limit groove 5231 is arranged at a bearing connection position between the connecting rod 521 and the ejector rod 522, the top end of the connecting rod 521 and the bottom end of the ejector rod 522 are both inserted into the guide limit groove 5231, the bottom end of the connecting rod 521 is fixedly connected with the electric cylinder 511, the top end of the ejector rod 522 is connected with the bottom end of the ejector rod 522 through a bearing, and the top end of the ejector rod 522 is fixedly connected with the roll-over door 24; when the display screen 200 moves up and down along with the lifting frame 312, the electric cylinders 511 move up and down along with the lifting frame 312 on the first sliding rail 512 and the second sliding rail 513, the electric cylinders 511 drive the connecting rods 521 to move up and down together, the connecting rods 521 drive the ejector rods 522 to perform ejection movement in the guide limit grooves 5231 formed in the base plates 523, and the top ends of the ejector rods 522 are propped against the turnover doors 24 and enable the turnover doors 24 to be opened, or the propped against the turnover doors 24 are released to enable the turnover doors 24 to be closed.

In an alternative implementation, the working procedure of this embodiment is: when the display 200 is required to be lifted up due to use, the control main board controls the start-up driving source 3111, the driving source 3111 outputs driving force from an output end to the driving wheel 3112, the driving wheel 3112 sequentially transmits the driving force to the driven wheel 3113 through the flexible transmission member 3114, at this time, the flexible transmission member 3114 moves with rotation of the driving wheel 3112 and the driven wheel 3113, since the flexible transmission member 3114 is fixed to the lifting frame 312 by the first lifting fixing block 3117, the lifting frame 312 rises with movement of the flexible transmission member 3114, the electric cylinders 511 rise together with the lifting frame 312 on the first slide rail 512 and the second slide rail 513, the electric cylinder 511 drives the connecting rod 521 to ascend together, the connecting rod 521 drives the ejector rod 522 to perform ejection movement in the guide limit groove 5231 formed on the base plate 523, the top end of the ejector rod 522 abuts against the overturning door 24 and enables the overturning door 24 to be opened, in the process, the lifting frame 312 drives the display screen 200 to ascend from the installation shell 2 at the same time, when the laser lifting sensor 34 senses that the display screen 200 ascends to a preset height, a signal is transmitted to the control main board, the control main board controls the driving source 3111 to be closed, the first driving component 311 stops driving the lifting frame 312 to ascend, and at the moment, the display screen 200 reaches the preferable display height and is fixed; in this process, since the weight assembly 33 is in a dynamic balance state with the display screen 200 through the intermediate connecting member 32, when the display screen 200 moves up, the weight assembly 33 simultaneously moves relatively and assists the display screen 200 to rise by self-gravity, and the limiting elastic member 35 assists the display screen 200 to rise by self-rebound force while the display screen 200 rises.

When the display height of the display screen is required to be adjusted due to display, the process is repeated again only through the control main board; when the display angle of the display screen 200 needs to be adjusted due to display, the control main board controls and starts the second driving component 411, the second driving component 411 outputs driving force from the output end to the transmission connecting rod 412 to drive the transmission connecting rod 412 to rotate, the transmission connecting rod 412 drives the rotating shaft 23 to rotate, the rotating shaft 23 drives the display screen 200 wrapped and protected by the protection frame 22 to rotate simultaneously, when the laser elevation sensor 42 senses that the display screen 200 rotates to a preset display angle along with the rotation of the transmission connecting rod 412, the laser elevation sensor 42 transmits signals to the control main board, the control main board controls and stops driving the transmission connecting rod 412 to rotate, at the moment, the display screen 200 reaches a better display angle and is fixed, and when the display angle of the display screen needs to be adjusted due to display, the process is repeated again only through the control main board.

When the display screen 200 is not required to be lowered, the control main board controls the starting driving source 3111 again, the driving source 3111 drives the driving wheel 3112 and the driven wheel 3113 to rotate again, the flexible transmission piece 3114 moves along with the rotation of the driving wheel 3112 and the driven wheel 3113, at this time, the lifting frame 312 descends along with the movement of the flexible transmission piece 3114, the electric cylinder 511 jointly descends along with the lifting frame 312, the electric cylinder 511 simultaneously drives the connecting rod 521 to descend together, the connecting rod 521 drives the ejector rod 522 to rebound in the guiding limit groove 5231 formed in the base plate 523, the top end of the ejector rod 522 is released to abut against the turnover door 24 to enable the turnover door 24 to be closed, in the process, the lifting frame 312 simultaneously drives the display screen 200 to descend, as the display screen 200 descends, the laser lifting sensor 34 transmits signals to the control main board when the laser lifting sensor 34 senses that the display screen 200 descends to the initial height, the control main board controls the driving source 3111 to be closed, the first driving component 311 stops driving the lifting frame 312 to descend, and the display screen 200 returns to the initial position inside the installation shell to be fixed.

The working principle of the utility model is as follows: in the process that the first driving component 311 drives the display screen 200 to ascend, the driving force required to be provided by the first driving component 311 can be reduced through the gravity action of the first driving component 311 when the balancing weight 311 descends, namely, the driving force provided by the first driving component 311 and the gravity of the balancing weight 331 overcome the gravity of the display screen 200 together and enable the display screen 200 to ascend, so that the effect of reducing the workload when the first driving component 311 drives the display screen 200 to ascend is achieved.

In summary, compared with the prior art, the technical scheme provided by the embodiment of the utility model can have the following beneficial effects:

the lifting system 100 for lifting the display screen utilizes the counterweight assembly 33 in the lifting mechanism 3 to form dynamic balance with the display screen 200 through the middle connecting piece 32, so that when the first driving assembly 311 drives the lifting frame 312 to move, the counterweight assembly 33 can assist the display screen 200 to lift through self gravity, thereby being beneficial to improving the defect that the lifting system 100 for lifting the display screen has larger load when the first driving assembly 311 drives the display screen 200 to lift, and reducing the workload when the first driving assembly 311 drives the display screen 200 to lift.

In the description of the present utility model, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, as well as, for example, fixedly coupled, detachably coupled, or integrally coupled, unless otherwise specifically indicated and defined. Either mechanically or electrically. Can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The foregoing description is only of the preferred embodiments of the utility model and is not intended to limit the utility model. Various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the scope of the claims of the present utility model.

Claims (10)

1. A lifting system for lifting a display screen, the lifting system comprising:

the installation shell is internally provided with an installation cavity, and the top of the installation shell is provided with a lifting access; the lifting access opening is communicated with the mounting cavity and used for allowing the display screen to enter and exit the mounting cavity;

the lifting mechanism is positioned in the mounting cavity and comprises a lifting assembly, a middle connecting piece and at least one counterweight assembly, wherein the lifting assembly and the counterweight assembly are arranged on the mounting shell, the lifting assembly comprises a lifting frame and a first driving assembly, the first driving assembly is arranged on the mounting shell and positioned in the mounting cavity, and the lifting frame is slidably arranged in the mounting cavity and is connected with a display screen and an output end of the first driving assembly;

the middle connecting piece is arranged on the mounting shell and located in the mounting cavity, one end of the middle connecting piece is connected with the lifting frame, the other end of the middle connecting piece is connected with the counterweight assembly, dynamic balance is formed between the counterweight assembly and the display screen, and when the first driving assembly drives the lifting frame to move, the counterweight assembly is enabled to ascend through self gravity to assist the display screen.

2. The lifting system for lifting a display screen of claim 1, wherein the intermediate connector is a flexible connector.

3. The lifting system for lifting a display screen according to claim 1, wherein the first driving assembly comprises a flexible transmission member and first lifting fixing blocks, the flexible transmission member is arranged on two sides of the first driving assembly, the first lifting fixing blocks are arranged on the lifting frame along the extending direction of the flexible transmission member, the flexible transmission member is inserted into the lifting frame, and the lifting frame drives the display screen to lift through the flexible transmission member of the first driving assembly.

4. The lifting system for lifting a display screen according to claim 1, wherein 2-3 weight assemblies are provided, each weight assembly being located in the mounting cavity and disposed on the mounting shell.

5. The lifting system for lifting a display screen according to any one of claims 1 to 4, wherein the weight assembly includes a guide rail and a weight block, the guide rail being disposed in the mounting case in a lifting direction of the display screen; the balancing weight is arranged on the guide sliding rail in a sliding manner along the length direction of the guide sliding rail, is connected with the other end of the middle connecting piece and is positioned at the top end of the guide sliding rail; when the display screen is lifted, the balancing weight slides along the guide sliding rail and in the opposite direction with the display screen.

6. The lift system for lifting a display screen of claim 5, wherein the counterweight assembly further comprises a second lifting fixture; the second lifting fixing block is arranged on the lifting frame along the extending direction of the middle connecting piece, is inserted with the middle connecting piece, and fixes the middle connecting piece on the lifting frame.

7. The lift system for lifting a display screen of any one of claims 1 to 4, further comprising a support plate positioned within the mounting cavity and disposed on the mounting housing and secured below the lift frame.

8. The lifting system for lifting a display screen according to claim 7, wherein the lifting mechanism further comprises a limiting elastic member disposed in the mounting case and located between the lifting frame and the support plate to assist in lifting the display screen by means of a rebound force when the display screen is lifted.

9. The lifting system for lifting a display screen according to any one of claims 1 to 4, further comprising a protective frame located within the mounting cavity and disposed on the lifting frame for receiving and protecting the display screen.

10. The lifting system for lifting a display screen according to any one of claims 1 to 4, wherein the lifting system comprises a touch screen located in the installation cavity and disposed on the lifting frame for manipulating the display content of the display screen.