CN211694254U - Case with automatic display screen lifting function - Google Patents

Abstract

The utility model discloses a quick-witted case with display screen automatic rising function, the power distribution box comprises a box body, it stretches out the mouth to have seted up the display screen in the box upper end, still including locating the automatic elevating system of display screen in the box, and locate the display screen that the display screen stretches out the mouth on the automatic elevating system of display screen and can follow the display screen and stretch out, the automatic elevating system of display screen includes the vertical lifting rack of locating in the box, locate the lifting support in the box, locate in the box and with the lift support connection lift driving motor, and locate on lift driving motor's the output shaft and with lifting rack engaged with lift drive gear, the display screen is located on the lifting support. The utility model discloses can realize that the automatic rising of display screen stretches out the outside use of box, and automatic decline withdraws the interior collection of box, whole process, degree of automation is high, and the operation is stable, convenient to use, and the practicality is strong, does not occupy the desktop position after the use, can keep the desktop neat pleasing to the eye, can carry out the guard action to the display screen, prolongs its life.

Description

Case with automatic display screen lifting function

Technical Field

The utility model relates to a quick-witted case especially relates to a quick-witted case with display screen automatic rising function.

Background

With the continuous development and progress of electronic equipment and science and technology, a computer display screen is adopted to assist the speech, and the computer display screen is widely applied to places such as meeting rooms, education institutions, training institutions and the like. Currently, there are three general situations:

(1) the computer display screen is placed on a desktop for a long time for use, and cannot be folded after being used, so that dust can be accumulated on the computer display screen, the service life is shortened, and the position of the desktop is occupied, so that the tidiness and the attractiveness of the desktop are influenced;

(2) the projection screen is directly hung on the wall for display, so that dust can be accumulated on the projection screen, and the service life of the telephone is influenced;

(3) the notebook computer is troublesome to use when being carried each time.

SUMMERY OF THE UTILITY MODEL

In view of the above, an object of the utility model is to provide a quick-witted case with display screen automatic rising function can realize that the automatic rising of display screen stretches out the outside use of box, uses the back, and the automatic decline is withdrawed and is collected in the box, at whole in-process, and degree of automation is high, and the operation is stable, convenient to use, the practicality is strong, does not occupy the desktop position after the use, can keep the desktop neat pleasing to the eye, can carry out the guard action to the display screen, plays dustproof and waterproof's effect, prolongs its life.

The utility model discloses a reach the technical scheme that above-mentioned purpose adopted and be:

the utility model provides a quick-witted case with automatic raising and lowering functions of display screen, including a box, it stretches out the mouth to have seted up a display screen in this box upper end, a serial communication port, still including setting up a display screen automatic lifting mechanism in the box, and set up on display screen automatic lifting mechanism and can stretch out a display screen that the mouth stretches out from the display screen, this display screen automatic lifting mechanism includes vertical a lifting rack that sets up in the box, set up a lifting support in the box, set up in the box and a lift driving motor who is connected with lifting support, and set up on lift driving motor's output shaft and with a lift drive gear that lifting rack meshes mutually, the display screen sets up on lifting support.

As a further improvement, the automatic lifting mechanism of the display screen further comprises a vertical at least one lifting guide rod arranged in the box body, an at least one lifting guide slide seat is movably sleeved on the lifting guide rod, and the back of the lifting support is fixedly connected with the lifting guide slide seat.

As a further improvement of the present invention, two ends of the lifting support are respectively provided with an automatic display screen swing angle assembly, the automatic display screen swing angle assembly comprises a swing angle linkage plate rotatably arranged at the end part of the lifting support and at least one reset spring connected between the swing angle linkage plate and the side edge of the lifting support, and the display screen is arranged on the swing angle linkage plate at two ends of the lifting support; meanwhile, a swinging ejection piece for ejecting the lower part of the swinging angle linkage plate is arranged on the inner wall of the box body.

As a further improvement of the utility model, the upper part of the swing angle linkage plate is rotatably arranged on the lifting support, the lower part of the swing angle linkage plate is provided with a slide hole, and a slide shaft inserted into the slide hole is arranged on the side edge of the lifting support; meanwhile, a protruding part facing one side of the swinging ejection piece is convexly arranged at the lower part of the swinging angle linkage plate; one end of the reset spring is connected to the upper part of the swing angle linkage plate, and the other end of the reset spring is connected to the lower part of the side edge of the lifting support.

As a further improvement of the utility model, the end part of the lifting bracket is upwards arranged on a connecting block, and the upper part of the swing angle linkage plate is rotationally connected with the connecting block through a bolt; the swinging ejection piece mainly comprises a bearing seat arranged on the inner wall of the box body and at least one bearing rotatably arranged on the bearing seat.

As a further improvement, the utility model also includes a flip cover arranged on the extending opening of the display screen and an automatic opening and closing mechanism arranged in the box and connected to at least one flip cover of the flip cover, wherein the automatic opening and closing mechanism of the flip cover comprises a fixed seat arranged on the lower part of the inner side of the box, a slide plate connected between the pull plate and the fixed seat and a buffer spring connected between the slide plate and the pull plate.

As a further improvement of the present invention, a fixed seat chute is formed on the fixed seat, a pull plate lower chute is formed on the pull plate, at least one middle positioning sliding member extending into the pull plate lower chute is arranged at the upper end of the sliding plate, and a lower positioning sliding member extending into the fixed seat chute is arranged at the lower end of the sliding plate; an upper pull plate sliding groove is formed in the pull plate, and an upper positioning sliding piece extending into the upper pull plate sliding groove is arranged on the inner wall of the box body; and a pushing arm positioned right above the lower positioning sliding part extends and is arranged on the side edge of the automatic display screen lifting mechanism.

As a further improvement of the utility model, the upper chute of the pulling plate is an arc chute, and the lower chute of the pulling plate and the chute of the fixing seat are both strip chutes; the upper positioning sliding part, the middle positioning sliding part and the lower positioning sliding part are all screws or bolts.

As a further improvement of the utility model, the arm-tie lower part side is provided with an arm-tie couple the slide side is provided with a slide couple, buffer spring one end is colluded and is established on the arm-tie couple, and the other end is colluded and is established on the slide couple.

As a further improvement, the flip is rotatably arranged on the inner wall of the box body through a connecting plate, and the upper end of the pulling plate is rotatably connected with the connecting plate.

The utility model has the advantages that:

(1) through with the display screen integration in the box to combine together through the automatic elevating system of display screen that has special structural design and the automatic mechanism that opens and shuts of flip, with control flip automatic opening and shutting and the automatic lift of display screen, structural design is reasonable, and the precision is high, realizes that the automatic rising of display screen stretches out the outside use of box, and after the use, automatic decline withdraws the box and collects. In the whole process, the automatic degree is high, the operation is stable and stable, the noise is small, the use is convenient, the practicability is high, the display screen is collected in the box body after the display screen is used, the position of the desktop is not occupied, the desktop is kept neat and attractive, meanwhile, the collection and the protection of the display screen can be realized, the dustproof and waterproof effects are achieved, and the service life of the display screen is prolonged.

(2) Through the special structural design of the automatic flip cover opening and closing mechanism, the automatic flip cover opening and closing mechanism is reasonable in structural design and high in precision, can realize automatic opening and closing of the flip cover so as to be matched with the extending use and withdrawing collection of a display screen, and is high in automation degree; meanwhile, the buffer spring is combined with the sliding groove, so that the hand clamping prevention effect is achieved.

(3) Through the automatic angle of oscillation subassembly of display screen by the lifting support both ends, can realize carrying out automatic angle of oscillation to the display screen, reach the purpose of slope display screen, convenient to use person obtains the viewing angle that is most suitable for watching the content that shows on the display screen.

The above is an overview of the technical solution of the present invention, and the present invention is further explained with reference to the accompanying drawings and the detailed description.

Drawings

FIG. 1 is a schematic view of the overall internal structure of the first embodiment;

FIG. 2 is a schematic overall external structure diagram according to the first embodiment;

FIG. 3 is a schematic structural diagram of an automatic lifting mechanism of a display panel according to an embodiment;

fig. 4 is a schematic structural view illustrating the automatic display screen tilt angle assembly disposed on the lifting bracket according to the second embodiment;

fig. 5 is a schematic structural view of an automatic flip opening and closing mechanism in the third embodiment;

fig. 6 is a schematic structural view illustrating the automatic flip cover opening and closing mechanism in the third embodiment of the present invention disposed in the box body;

FIG. 7 is a block diagram of the driving principle of the primary screen, the secondary screen and the touch screen;

fig. 8 is a driving schematic diagram of the main screen and the sub screen.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose, the following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings and preferred embodiments.

The first embodiment is as follows:

referring to fig. 1 to 3, the present embodiment provides a chassis with an automatic display screen lifting function, including a box body 1, and a display screen extending opening 11 is formed at an upper end of the box body 1. This embodiment has quick-witted case of display screen automatic rising function still including set up in a display screen automatic rising mechanism 2 in box 1 and set up on display screen automatic rising mechanism 2 and can stretch out a display screen 3 that mouthful 11 stretches out from the display screen, can drive display screen 3 by display screen automatic rising mechanism 2 and be elevating movement to display screen 3 can stretch out mouthful 11 from the display screen and stretch out the use. Specifically, as shown in fig. 3, the display screen automatic lifting mechanism 2 includes a lifting rack 21 and at least one lifting guide rod 22 vertically disposed in the box 1, a lifting support 23 disposed in the box 1 and slidably disposed on the lifting guide rod 22, a lifting driving motor 24 disposed in the box 1 and connected to the lifting support 23, and a lifting transmission gear 25 disposed on an output shaft of the lifting driving motor 24 and engaged with the lifting rack 21, wherein the display screen 3 is disposed on the lifting support 23. The lifting driving motor 24 provides driving force to drive the lifting transmission gear 25 to rotate, and the lifting transmission gear 25 is fixed in the box body, so that when the lifting transmission gear 25 rotates, the lifting transmission gear must move up and down along the lifting rack 21, and the lifting support 23 and the display screen 3 are driven to do lifting movement. For example, when the lifting transmission gear 25 rotates clockwise, the lifting bracket 23 and the display screen 3 move up, and conversely, the lifting bracket 23 and the display screen 3 move down.

In the embodiment, the lifting rack 21 is meshed with the lifting transmission gear 25, so that the lifting motion is realized, the noise is low, the operation is stable and stable, and the service life is long.

Simultaneously, in order to improve lifting support 23 when being elevating movement, can not take place the slope, this embodiment is in movable sleeve is equipped with an at least lift direction slide 26 on the lift guide bar 22, lifting support 23 back and lift direction slide 26 fixed connection for lifting support 23 is vertical motion along lift guide bar 22 under lift driving motor 24's drive, can not appear the slope phenomenon, improves lifting support 23 and is elevating movement's stability and accuracy with display screen 3.

In this embodiment, the box body 1 is made of aluminum alloy, so that the box body 1 has strong anti-interference capability; and the box body 1 is an integrated structure formed by one-time die casting, and has no screw on the whole appearance and beautiful appearance.

The case with the display screen automatic lifting function provided by the embodiment is particularly suitable for being installed in places such as meeting rooms, education institutions and training institutions. When the multifunctional cabinet is installed specifically, the cabinet with the automatic display screen lifting function can be integrally embedded into a desk, and the upper end face of the cabinet body 1 is flush with the desktop. By using the case with the display screen automatic lifting function provided by the embodiment, paperless office work can be realized.

Example two:

the main difference between the present embodiment and the first embodiment is that, as shown in fig. 3 and fig. 4, two ends of the lifting bracket 23 are respectively provided with an automatic display screen swinging angle assembly 27, the automatic display screen swinging angle assembly 27 includes a swinging angle linkage plate 271 rotatably disposed at the end of the lifting bracket 23, and at least one return spring 272 connected between the swinging angle linkage plate 271 and the side edge of the lifting bracket 23, and the display screen 3 is disposed on the swinging angle linkage plate 271 at two ends of the lifting bracket 23; meanwhile, a swing ejecting member 16 for ejecting the lower part of the swing angle linkage plate 271 is arranged on the inner wall of the box body 1.

In the process that the lifting bracket 23 rises, the swing angle linkage plate 271 rises, and when the swing angle linkage plate 271 does not rise to the side edge of the swing ejection piece 16, the swing angle linkage plate 271 drives the display screen 3 to vertically rise along with the lifting bracket 23 and extend out of the display screen extension opening 11; when the swing angle linkage plate 271 rises to the positive side of the swing ejection member 16, the swing ejection member 16 contacts with the lower portion of the swing angle linkage plate 271, and the swing ejection member 16 pushes the lower portion of the swing angle linkage plate 271 outwards, so that the upper portion of the swing angle linkage plate 271 swings inwards by a certain angle and drives the display screen 3 to swing by a corresponding angle, thereby achieving the purpose of tilting the display screen 3, facilitating the user to view the content displayed on the display screen 3, and at this time, the reset spring 272 deforms. In the process that the swing angle linkage plate 271 drives the display screen 3 to descend along with the lifting support 23 and retract into the box body 1, the swing angle linkage plate 271 continuously descends, after the lower portion of the swing angle linkage plate 271 gradually breaks away from the swing ejecting piece 16, the swing ejecting piece 16 releases acting force on the lower portion of the swing angle linkage plate 271, under the action of elastic restoring force of the restoring spring 272, the swing ejecting piece 16 drives the display screen 3 to reversely swing and reset, and finally vertically descends and retracts into the box body 1.

Specifically, the upper part of the swing angle linkage plate 271 is rotatably disposed on the lifting bracket 23, a sliding hole 2711 is formed at the lower part of the swing angle linkage plate 271, and a sliding shaft 231 inserted into the sliding hole 2711 is disposed on the side edge of the lifting bracket 23; meanwhile, a protrusion 2712 protruding toward the swing ejector 16 is protruded at the lower portion of the swing angle linkage plate 271. Meanwhile, the end of the lifting bracket 23 is upwardly arranged on a connecting block 232, and the upper part of the swing angle linkage plate 271 is rotatably connected with the connecting block 232 through a bolt 273.

When the swing angle linkage plate 271 moves up to the positive side of the swing ejecting member 16, the swing ejecting member 16 contacts with the protrusion 2712 of the swing angle linkage plate 271, and the protrusion 2712 is pushed outward by the swing ejecting member 16, so that the sliding hole 2711 of the swing angle linkage plate 271 slides along the sliding shaft 231 with the bolt 273 at the upper part of the swing angle linkage plate 271 as the center point, thereby swinging for a certain angle. The combination of the sliding hole 2711 and the sliding shaft 231 defines the swing path and angle of the swing angle linkage plate 271, so that the stability and accuracy of the swing angle linkage plate 271 during swinging are improved, and the phenomenon of random swinging is avoided.

Specifically, one end of the return spring 272 is connected to the upper portion of the swing angle linkage plate 271, and the other end is connected to the lower portion of the side of the lifting bracket 23. In the process that the swing angle linkage plate 271 swings with the bolt 273 at the upper part as the central point, the upper part of the swing angle linkage plate 271 drives the display screen 3 to swing at a corresponding angle, the return spring 272 is stretched to generate corresponding deformation, and after the acting force generated by the swinging action disappears, the return spring 272 provides a restoring acting force to reset.

Specifically, the swinging ejector 16 mainly comprises a bearing seat 161 disposed on the inner wall of the box 1, and at least one bearing 162 rotatably disposed on the bearing seat 161. When the swing angle linkage plate 271 rises to the lower part of the protrusion 2712 to contact with the lower edge of the bearing 162, the swing angle linkage plate 271 continues to rise, the protrusion 2712 and the bearing 162 generate a relative acting force, the protrusion 2712 drives the bearing 162 to rotate until the swing angle linkage plate 271 rises to the positive side of the protrusion 2712, and in the process, the bearing 162 pushes the protrusion 2712 outwards to rotate the swing angle linkage plate 271. Therefore, the rotation of the rotatable bearing 162 provides an auxiliary function for the swing angle linking plate 271 to ascend, and prevents the influence of excessive resistance on the swing angle linking plate 271 from continuously ascending when the protrusion 2712 is just in contact with the bearing 162.

Example three:

the main difference between this embodiment and the first or second embodiment is: as shown in fig. 5 and fig. 6, the case of this embodiment further includes a flip cover 10 disposed on the display screen extension opening 11, and at least one flip cover automatic opening and closing mechanism 4 disposed in the case 1 and connected to the flip cover 10, where the flip cover automatic opening and closing mechanism 4 includes a fixed seat 41 disposed at the lower portion of the inner side of the case 1, a pull plate 42 rotatably connected to the flip cover 10, a sliding plate 43 slidably connected between the pull plate 42 and the fixed seat 41, and a buffer spring 44 connected between the sliding plate 43 and the pull plate 42. When the slide plate 43 is stressed to pull the pull plate 42 to move downwards along the interior of the box body, the buffer spring 44 is stretched, and because the pull plate 42 is rotationally connected with the flip cover 10, the pull plate 42 drives the flip cover 10 to swing towards the direction of the display screen extension opening 11, so that the display screen extension opening 11 is sealed, namely the flip cover 10 is closed, and the display screen 3 is conveniently and hermetically accommodated in the box body; when the sliding plate 43 is stressed and disappears, under the elastic restoring force of the buffer spring 44, the sliding plate 43 moves upwards to reset, and the pulling plate 42 is pushed to move upwards along the inside of the box body, because the pulling plate 42 is rotatably connected with the flip cover 10, the pulling plate 42 drives the flip cover 10 to swing towards the side edge of the display screen extension opening 11, so that the display screen extension opening 11 is opened, and the display screen 3 can be conveniently extended out of the display screen extension opening 11.

Specifically, a fixed seat sliding groove 411 is formed on the fixed seat 41, a pulling plate lower sliding groove 421 is formed on the pulling plate 42, at least one middle positioning sliding member 431 extending into the pulling plate lower sliding groove 421 is arranged at the upper end of the sliding plate 43, and a lower positioning sliding member 432 extending into the fixed seat sliding groove 411 is arranged at the lower end of the sliding plate 43. Specifically, the pull plate lower chute 421 and the fixing seat chute 411 are both bar-shaped chutes, and the middle positioning sliding member 431 and the lower positioning sliding member 432 are both screws or bolts. The middle positioning sliding member 431 can slide up and down along the pull plate lower sliding groove 421, and the lower positioning sliding member 432 can slide up and down along the fixed seat sliding groove 411. By combining the pull plate lower chute 421 with the fixed seat chute 411, not only a vertical guiding function can be provided for the up-and-down movement of the sliding plate 43, but also the up-and-down sliding range of the sliding plate 43 can be limited, so as to ensure that the opening and closing strokes of the flip cover 10 are the same each time.

Meanwhile, in order to prevent the pulling plate 42 from tilting left and right in the process of moving up and down to drive the flip cover 10 to swing, in this embodiment, an upper pulling plate sliding slot 422 is formed on the pulling plate 42, and specifically, the upper pulling plate sliding slot 422 is an arc-shaped sliding slot; an upper positioning sliding part 14 extending into the upper sliding groove 422 of the pulling plate is arranged on the inner wall of the box body 1, and specifically, the upper positioning sliding part 14 is a screw or a bolt. Therefore, under the limit of the upper sliding chute 422 of the pulling plate and the upper positioning sliding part 14, the pulling plate 42 does not incline leftwards and rightwards in the process of moving up and down, and the stability of moving up and down of the pulling plate 42 is improved. Meanwhile, the slide groove 422 on the pulling plate is an arc-shaped slide groove, which provides a motion track for the pulling plate 42 to drive the flip cover 10 to swing, thereby improving the accuracy of the whole motion process.

Meanwhile, in order to enable the sliding plate 43 to be reset after being operated, in this embodiment, a sliding plate hook 423 is disposed on a side edge of the lower portion of the sliding plate 42, a sliding plate hook 433 is disposed on a side edge of the sliding plate 43, one end of the buffer spring 44 is hooked on the sliding plate hook 423, and the other end of the buffer spring is hooked on the sliding plate hook 433.

Meanwhile, the buffer spring 44, the pull plate lower chute 421 and the fixed seat chute 411 are combined to play a role of buffering and preventing hands from being clamped, and particularly, after the display screen 3 is driven by the display screen automatic lifting mechanism 2 to descend and be accommodated in the box body, the flip cover 10 needs to be closed; therefore, the slide plate 43 pulls the pull plate 42 to move downwards along the inside of the box body, the pull plate 42 drives the flip cover 10 to swing towards the direction of the display screen extension opening 11, and at this time, if a hand is placed in the display screen extension opening 11, if the buffer spring 44, the pull plate lower sliding groove 421 and the fixed seat sliding groove 411 do not exist, the swing closing action of the flip cover 10 can apply a large acting force to the hand, the hand clamping phenomenon occurs, and the hand injury is serious. Due to the existence of the buffer spring 44, the lower sliding groove 421 of the pulling plate and the sliding groove 411 of the fixing seat in the embodiment, a good buffering effect is achieved, the acting force when the flip cover 10 touches the hand of a person is weakened, the time when the flip cover 10 touches the hand of the person is shortened, and therefore the injury degree of the hand of the person is reduced.

Specifically, the flip cover 10 of the present embodiment is rotatably disposed on the inner wall of the box body 1 through a connecting plate 45, and the upper end of the pulling plate 42 is rotatably connected to the connecting plate 45. Namely, the flip cover 10 swings inside the box body 1 to open and close the display screen extension opening 11.

How the slide plate 43 is triggered by the automatic display screen lifting mechanism 2 in the embodiment. Specifically, a pushing arm 20 located right above the lower positioning sliding part 432 extends from the side of the lifting bracket 23 of the automatic display screen lifting mechanism 2. When the automatic display screen lifting mechanism 2 drives the display screen 3 to descend and completely enter the box body 1, the pushing arm 20 synchronously pushes the lower positioning sliding part 432 downwards, thereby driving the sliding plate 43 to move downwards so as to close the flip cover 10. When the automatic display screen lifting mechanism 2 drives the display screen 3 to ascend, the lifting support 23 ascends along with the ascending, so that the pushing arm 20 releases the acting force on the lower positioning sliding part 432, the sliding plate 43 moves upwards to reset under the elastic restoring force of the buffer spring 44, and the pulling plate 42 is pushed to move upwards along the inside of the box body, and then the pulling plate 42 drives the flip cover 10 to swing towards the side edge of the display screen extension opening 11, so that the display screen extension opening 11 is opened, and the display screen 3 can be conveniently extended from the display screen extension opening 11.

In the first to third embodiments, the display screen 3 mainly comprises a main screen on the front side and a sub screen on the back side, that is, the display screen 3 is a dual screen, and the driving principle of the main screen and the sub screen is as shown in fig. 7 and 8, thereby realizing the dual screen display function. For example, when a speaker performs speech using the main screen, information such as the name and identity of the speaker can be displayed on the sub-screen so that the viewer can directly know the identity of the speaker.

Meanwhile, at least one of the main screen and the auxiliary screen is a touch screen, namely, the touch screen function is realized. And for the driving principle of the touch screen, as shown in fig. 7.

It should be noted that, the utility model discloses a quick-witted case with display screen automatic rising function to structural component such as its inside display screen 3, lift driving motor 24, all can be the parts that general standard component or skilled person know, and its structure and principle are that technical person knows or learn through conventional experimental method through the technical manual for the skilled person.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that other structures obtained by adopting the same or similar technical features as the above embodiments of the present invention are all within the protection scope of the present invention.

Claims (10)

1. The utility model provides a quick-witted case with automatic raising and lowering functions of display screen, including a box, it stretches out the mouth to have seted up a display screen in this box upper end, a serial communication port, still including setting up a display screen automatic lifting mechanism in the box, and set up on display screen automatic lifting mechanism and can stretch out a display screen that the mouth stretches out from the display screen, this display screen automatic lifting mechanism includes vertical a lifting rack that sets up in the box, set up a lifting support in the box, set up in the box and a lift driving motor who is connected with lifting support, and set up on lift driving motor's output shaft and with a lift drive gear that lifting rack meshes mutually, the display screen sets up on lifting support.

2. The chassis with automatic display screen lifting function according to claim 1, wherein the automatic display screen lifting mechanism further comprises at least one lifting guide rod vertically disposed in the box body, at least one lifting guide sliding seat is movably sleeved on the lifting guide rod, and the back of the lifting bracket is fixedly connected with the lifting guide sliding seat.

3. The chassis with the automatic display screen lifting function according to claim 1, wherein an automatic display screen swinging angle assembly is respectively arranged at two ends of the lifting support, the automatic display screen swinging angle assembly comprises a swinging angle linkage plate rotatably arranged at the end part of the lifting support and at least one reset spring connected between the swinging angle linkage plate and the side edge of the lifting support, and the display screen is arranged on the swinging angle linkage plate at two ends of the lifting support; meanwhile, a swinging ejection piece for ejecting the lower part of the swinging angle linkage plate is arranged on the inner wall of the box body.

4. The chassis with the automatic display screen lifting function according to claim 3, wherein the upper part of the swing angle linkage plate is rotatably disposed on the lifting bracket, a sliding hole is formed at the lower part of the swing angle linkage plate, and a sliding shaft inserted into the sliding hole is disposed on the side edge of the lifting bracket; meanwhile, a protruding part facing one side of the swinging ejection piece is convexly arranged at the lower part of the swinging angle linkage plate; one end of the reset spring is connected to the upper part of the swing angle linkage plate, and the other end of the reset spring is connected to the lower part of the side edge of the lifting support.

5. The chassis with the automatic display screen lifting function according to claim 4, wherein a connecting block is arranged upwards at the end of the lifting bracket, and the upper part of the swing angle linkage plate is rotatably connected with the connecting block through a bolt; the swinging ejection piece mainly comprises a bearing seat arranged on the inner wall of the box body and at least one bearing rotatably arranged on the bearing seat.

6. The chassis with the automatic display screen lifting function according to any one of claims 1 to 5, further comprising a flip cover disposed on the display screen extending opening, and at least one flip cover automatic opening and closing mechanism disposed in the box and connected to the flip cover, wherein the flip cover automatic opening and closing mechanism comprises a fixed seat disposed at the lower portion of the inner side of the box, a pull plate rotatably connected to the flip cover, a sliding plate slidably connected between the pull plate and the fixed seat, and a buffer spring connected between the sliding plate and the pull plate.

7. The chassis with the automatic display screen lifting function according to claim 6, wherein a fixed seat sliding groove is formed on the fixed seat, a pulling plate lower sliding groove is formed on the pulling plate, at least one middle positioning sliding member extending into the pulling plate lower sliding groove is arranged at the upper end of the sliding plate, and a lower positioning sliding member extending into the fixed seat sliding groove is arranged at the lower end of the sliding plate; an upper pull plate sliding groove is formed in the pull plate, and an upper positioning sliding piece extending into the upper pull plate sliding groove is arranged on the inner wall of the box body; and a pushing arm positioned right above the lower positioning sliding part extends and is arranged on the side edge of the automatic display screen lifting mechanism.

8. The chassis with the automatic display screen lifting function according to claim 7, wherein the pull plate upper chute is an arc chute, and the pull plate lower chute and the fixed seat chute are both strip chutes; the upper positioning sliding part, the middle positioning sliding part and the lower positioning sliding part are all screws or bolts.

9. The chassis with automatic display screen lifting function according to claim 6, wherein a pull plate hook is provided at a lower side edge of the pull plate, a slide plate hook is provided at a side edge of the slide plate, and one end of the buffer spring is hooked on the pull plate hook, and the other end of the buffer spring is hooked on the slide plate hook.

10. The chassis with automatic display screen lifting function according to claim 6, wherein the flip cover is rotatably disposed on the inner wall of the box body through a connecting plate, and the upper end of the pulling plate is rotatably connected to the connecting plate.

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