Damping liquid crystal screen with floating surface cover

Abstract

The invention discloses a damping liquid crystal screen with a floating surface cover, which comprises a frame shell (1), a screen mounting cavity (3) is arranged in the middle of the frame shell (1), and a liquid crystal screen main body is mounted in the screen mounting cavity (3); the floating surface cover (2) is installed on the upper end face of the frame shell (1), and when the frame shell (1) and the liquid crystal screen main body are covered relative to the equipment host (100), the floating surface cover (2) protruding out of the upper end face of the frame shell (1) serves as a buffering piece. According to the damping liquid crystal screen, the stirring piece is utilized, so that when the damping liquid crystal screen with the floating face cover is opened, the damping performance can be greatly reduced, the driving extrusion force applied to the screen is reduced, the service life of the liquid crystal screen is prolonged, and the probability that a rotating shaft part is damaged is reduced; the heat dissipation performance of the display screen can be effectively improved, and meanwhile the buffering purpose can be achieved when the display screen is folded and closed.

Description

Technical Field

[0001] The invention relates to the field of damping liquid crystal screens with floating cover, in particular to a damping liquid crystal screen with floating cover. Background Art

[0002] With the rapid development of mobile computing devices, such as laptops, tablets and other foldable screen devices, the portability, durability and user experience of the devices are becoming more and more important. Among them, the LCD screen is a key component of these devices. Its folding function not only provides portability, but also poses new technical challenges.

[0003] In the prior art, in order to ensure that the LCD screen can be maintained at a suitable use angle after opening, a damping structure is usually set at the hinged parts of the host device on both sides of the screen. This structure can keep the screen at any angle during the opening process to adapt to the viewing habits of different users. However, this design also requires a large force to open the screen, especially when the user only applies force on one side, which will cause stress concentration, causing the screen to open eccentrically. The hinged parts on both sides are easily damaged due to the unbalanced force due to long-term unbalanced force, which in turn affects the display effect of the screen and even reduces the service life of the LCD screen. Moreover, if you open the LCD screen with your finger on one side, since the LCD screen is integrated, opening the LCD screen eccentrically on one side will cause unbalanced force on the screen, causing deformation of the screen after long-term use, resulting in damage to the material. Since the screen has poor anti-bending ability, the service life of the entire screen is greatly reduced; In addition, in order to prevent the LCD screen from colliding with the host device after being folded and closed, a rubber buffer block is usually added to the contact surface to reduce the impact force. However, this protruding buffer block design increases the gap of the device in the closed state to a certain extent, which not only affects the overall appearance of the device, but also may allow dust and moisture to enter during the carrying process, causing friction between the display screen and the host surface of the device, damaging the device. Moreover, since the buffer block is mostly fixed by bonding, it is easy to fall off after long-term use, affecting the protective effect of the device. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a damping LCD screen with a floating cover, which can cancel the damping of the damping LCD screen with a floating cover and the device host when opened, and can utilize the linked floating cover to effectively solve many deficiencies mentioned in the prior art.

[0005] The present invention is realized by the following technical scheme: a damping liquid crystal screen with a floating cover, comprising a frame shell, wherein a screen installation cavity is provided in the middle of the frame shell, and a liquid crystal screen body is installed in the screen installation cavity; A floating cover is installed on the upper end surface of the frame shell. When the frame shell and the LCD screen body are covered with the device host, the floating cover protruding from the upper end surface of the frame shell serves as a buffer. When the floating cover contacts the device host, it retracts into the frame shell. At this time, the frame shell and the device host are completely fitted. A toggle member is rotatably mounted on the opening and closing end of the frame shell, the frame shell is far from the toggle member as the rotating end, the rotating end of the frame shell is rotatably connected to the device host, the rotating end of the frame shell is provided with a rotating shaft, a telescopic damping assembly is installed in the rotating shaft, the frame shell is rotatably connected to the device host through the rotating shaft and the damping assembly, and a pulling mechanism is provided between the damping assembly and the toggle member; When the toggle member is rotated, the pulling mechanism pulls the damping assembly, and the damping assembly is retracted into the rotating shaft. At this time, the frame shell loses the damping force with the device host, and the pulling mechanism drives the floating surface cover to protrude from the upper end surface of the frame shell.

[0006] As a preferred technical solution, a mounting cavity is provided in the rotating shaft, and the damping assembly is movably mounted in the mounting cavity; The damping assembly comprises a damping shaft and a sliding sleeve, wherein the sliding sleeve is slidably mounted in the mounting cavity of the rotating shaft, the damping shaft is embedded in the sliding sleeve, and a portion of the damping shaft extends out of the sliding sleeve; An ejection spring is also installed in the installation cavity of the rotating shaft, one end of the ejection spring is in contact with the rotating shaft support, and the other end of the ejection spring is in contact with the sliding sleeve support and elastically ejects the sliding sleeve and the damping shaft. At this time, the damping shaft is ejected to the outside of the rotating shaft. When the toggle member is rotated, the sliding sleeve and the damping shaft are pulled by the pulling mechanism, and the damping shaft is retracted into the interior of the rotating shaft. At this time, the damping shaft is separated from the device host.

[0007] As a preferred technical solution, the pulling mechanism includes a pulling steel wire and a plurality of guide rollers, and the pulling steel wire and the plurality of guide rollers are arranged in the wiring groove of the frame shell. A face cover driving mechanism is also provided on the pulling steel wire. One end of the pulling steel wire passes through the first wire hole on the end face of the rotating shaft and is fixedly connected to the end face of the damping assembly, and the other end of the pulling steel wire passes through the second wire hole on the frame shell and is wound and connected with the toggle shafts on both sides of the toggle member. When the toggle member rotates, the toggle shaft rotates and causes the pulling steel wire to be wound on the toggle shaft, and the floating face cover is floatedly installed at the opening position of the wiring groove of the frame shell.

[0008] As a preferred technical solution, the movable end of the frame shell is provided with a mounting protrusion, a shifting cavity is opened on the mounting protrusion, the shifting piece is rotatably installed in the shifting cavity, and shifting shaft holes are respectively provided on both sides of the shifting cavity, and the shifting shafts on both sides of the shifting piece are rotatably installed in the shifting shaft holes.

[0009] As a preferred technical solution, when the toggle member rotates relative to the frame shell, an angle less than 90 degrees is formed between the toggle member and the frame shell.

[0010] As a preferred technical solution, a shaft mounting hole is provided on one side of the device main body opposite to the rotating shaft, a damping positioning hole is provided on the bottom surface of the shaft mounting hole, the frame shell is installed in the shaft mounting hole through the shaft, and when the damping shaft of the damping assembly is ejected to the outside of the rotating shaft, the damping shaft damper is installed in the damping positioning hole.

[0011] As a preferred technical solution, the opening of the damping positioning hole is in the shape of a trumpet opening, and the head of the damping shaft is in the shape of a cone.

[0012] As a preferred technical solution, the face cover driving mechanism comprises a driving fixed block fixedly mounted on the pulling wire, an elastic metal sheet is arranged on the driving fixed block, an angle less than 90 degrees is formed between the elastic metal sheet and the driving fixed block, and a driving contact block is arranged at the bottom of the floating face cover corresponding to the position of each driving fixed block; The position of the driving contact block relative to the elastic metal sheet forms a first inclined contact surface, and the elastic metal sheet forms a second inclined contact surface on the side corresponding to the first inclined contact surface. When the pulling wire is pulled, the elastic metal sheet is squeezed and contacted with the driving contact block, and the floating surface cover protrudes from the upper end surface of the frame shell.

[0013] As a preferred technical solution, both sides of the floating surface cover are in frictional contact with the inner wall surface of the wiring groove, and a plurality of protruding heat dissipation guide rods are provided on the contact surface between the floating surface cover and the wiring groove. A guide slide groove is provided on the inner wall surface of the wiring groove corresponding to the position of each heat dissipation guide rod. The floating surface cover is installed in the guide slide groove of the wiring groove by guiding the heat dissipation guide rods on both sides. When the floating surface cover protrudes from the upper end surface of the frame shell, the friction force between the two sides of the floating surface cover and the wiring groove keeps the floating surface cover continuously protruding from the upper end surface of the frame shell.

[0014] As a preferred technical solution, screen positioning installation grooves are provided on both sides of the screen installation cavity, and both sides of the LCD screen body are inserted into the screen positioning installation grooves. The screen positioning installation grooves are connected to the wiring grooves, and the heat of the LCD screen body is transferred to the wiring grooves and dissipated by the metal floating cover.

[0015] The beneficial effects of the present invention are as follows: the present invention temporarily cancels the damping effect of the hinged end damping assembly by arranging a toggle member, and the present invention makes the damping LCD screen with a floating cover no longer subject to damping restrictions when it is turned on, thereby achieving an easier opening operation, greatly reducing the force that the user needs to apply when turning on the display screen, and further reducing the stress on the hinged end and contact end of the damping LCD screen with a floating cover, effectively extending the service life of the display screen, which is particularly important for devices that frequently need to turn the display screen on and off, and can ensure that the device maintains good performance during long-term use.

[0016] Secondly, the present invention sets a linked floating cover. When the display screen is in use, the floating cover is slightly convex from the frame shell, which not only helps to dissipate heat and maintain the working performance of the display screen, but also plays a buffering role when the damping LCD screen with the floating cover contacts the device host. The convex floating cover effectively resists the damage that may be caused by the impact during the closing process, enhances the impact resistance of the damping LCD screen with the floating cover, and further improves the durability of the damping LCD screen with the floating cover. Moreover, the damping LCD screen with a floating cover can achieve a tighter fit with the device host after being folded and closed, which not only reduces the gap when the device is closed, reduces the risk of dust and moisture intrusion, but also improves the overall aesthetics and portability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention after removing the floating cover; Figure 3 For the present invention Figure 2 A partial enlarged view of the middle A; Figure 4 For the present invention Figure 2 A partial enlarged view of point B in the middle; Figure 5 It is a side cross-sectional schematic diagram of the present invention; Figure 6 For the present invention Figure 5 A partial enlarged view of point C in the middle; Figure 7 This is the use state of the toggle member of the present invention after rotation; Figure 8 For the present invention Figure 7 A partial enlarged view of point D in the middle; Fig. 9 A diagram showing the use state of the toggle member of the present invention after rotation from another viewing angle; Description of reference numerals: 1. Frame shell; 2. Floating cover; 3. Screen installation cavity; 4. Installation protrusion; 5. Toggle member; 6. Damping shaft; 7. Rotating shaft; 8. Toggle cavity; 9. Pulling wire; 10. Wiring groove; 11. Damping positioning hole; 12. Sliding sleeve; 13. Ejection spring; 14. Installation cavity; 15. First wire hole; 16. Rotating shaft installation hole; 17. Guide roller; 18. Toggle shaft; 19. Toggle shaft hole; 20. Second wire hole; 21. Drive contact block; 22. First inclined contact surface; 23. Drive fixing block; 24. Elastic metal sheet; 25. Screen positioning installation groove; 100. Equipment host. DETAILED DESCRIPTION

[0019] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0020] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0021] like Figure 1As shown, a damping liquid crystal screen with a floating cover of the present invention comprises a frame shell 1, wherein the frame shell 1 has a screen installation cavity 3 in the middle, and the liquid crystal screen body is installed in the screen installation cavity 3. In this embodiment, the frame shell 1 can be any kind of shell, and the material can be plastic, and the liquid crystal screen body is installed in the middle; It also includes a floating cover 2, which is installed on the upper end surface of the frame shell 1. When the frame shell 1 and the liquid crystal screen body are covered relative to the device host 100, the floating cover 2 protruding from the upper end surface of the frame shell 1 is used as a buffer, and when contacting the device host 100, the floating cover 2 is retracted into the frame shell 1. At this time, the frame shell 1 and the device host 100 are completely fitted. When the floating cover 2 is covered relative to the device host 100, the floating cover 2 is flush with the upper end surface of the frame shell 1. When the frame shell 1 is opened to use the liquid crystal screen, the floating cover 2 can be raised from the frame shell 1. like Figure 1 and Figure 2 As shown, it also includes a toggle member 5, which is rotatably mounted on the opening and closing end of the frame shell 1. The far end of the frame shell 1 from the toggle member 5 is the rotating end. The rotating end of the frame shell 1 is rotatably connected to the device host 100. The rotating end of the frame shell 1 is provided with a rotating shaft 7. A telescopic damping component is installed in the rotating shaft 7. The frame shell 1 is rotatably connected to the device host 100 through the rotating shaft 7 and the damping component. A pulling mechanism is provided between the damping component and the toggle member 5. The damping effect of the damping component is cancelled by the pulling mechanism, so that when the frame shell 1 is flipped, it no longer has damping properties and is more lightweight. At the same time, the floating surface cover 2 can be raised from the upper end surface of the frame shell 1 by the pulling mechanism. When the toggle member 5 is rotated, the damping assembly is pulled by the pulling mechanism, and the damping assembly is retracted into the rotating shaft 7. At this time, the frame shell 1 loses the damping force with the device host 100, and the floating surface cover 2 is driven by the pulling mechanism to protrude from the upper end surface of the frame shell 1. Due to the loss of the damping effect, when the frame shell 1 is closed relative to the device host 100 and opened, it can be very light. Only a lighter force is needed to open the damping LCD screen with the floating surface cover, and it is no longer necessary to overcome its damping force to open the frame shell 1. When using the damping LCD screen with the floating surface cover, after opening, reset the toggle member 5 to allow the rotating end of the frame shell 1 to obtain the damping effect again, and then stay at any angle position for use.

[0022] like Figure 2 and Figure 3 As shown, a mounting cavity 14 is provided in the rotating shaft 7, and the damping assembly is movably mounted in the mounting cavity 14; The damping assembly includes a damping shaft 6 and a sliding sleeve 12, wherein the sliding sleeve 12 is slidably mounted in the mounting cavity 14 of the rotating shaft 7, the damping shaft 6 is embedded in the sliding sleeve 12, and a portion of the damping shaft 6 extends out of the sliding sleeve 12. A guide slider may be provided outside the sliding sleeve 12, and a guide slot may be correspondingly provided in the mounting cavity 14. During installation, the sliding sleeve 12 is slidably mounted in the guide slot through the guide slider, so that the sliding sleeve 12 can be guided and retracted in the rotating shaft 7.

[0023] In order to allow the damping shaft 6 and the sliding sleeve 12 to have a reset capability, in the present embodiment, an ejection spring 13 is further installed in the mounting cavity 14 of the rotating shaft 7, one end of the ejection spring 13 is in contact with the rotating shaft 7 support, and the other end of the ejection spring 13 is in contact with the sliding sleeve 12 to support and elastically eject the sliding sleeve 12 and the damping shaft 6, at which time the damping shaft 6 is ejected to the outside of the rotating shaft 7, when the toggle member 5 is rotated, the sliding sleeve 12 and the damping shaft 6 are pulled by the pulling mechanism, and the damping shaft 6 is retracted into the rotating shaft 7, at which time the damping shaft 6 is separated from the device host 100, and the entire ejection spring 13 is in a compressed state, once the toggle member 5 is reset, the pulling force of the pulling wire 9 disappears, and under the action of the ejection spring 13, the sliding sleeve 12 and the damping shaft 6 are reset, thereby regaining the damping effect.

[0024] Please continue to read Figure 3 The pulling mechanism includes a pulling wire 9 and a plurality of guide rollers 17, the pulling wire 9 and the plurality of guide rollers 17 are arranged in the wiring groove 10 of the frame shell 1, one side of the pulling wire 9 is in contact with the guide roller 17, and when the pulling wire 9 is pulled, it can be guided by the guide roller 17, and a cover driving mechanism is also provided on the pulling wire 9, one end of the pulling wire 9 passes through the first wire hole 15 on the end face of the rotating shaft 7 and is fixedly connected with the end face of the damping component, and the other end of the pulling wire 9 passes through the second wire hole 20 on the frame shell 1 and is wound and connected with the toggle shaft 18 on both sides of the toggle member 5, as shown in FIG. Figure 4 As shown, when the toggle member 5 rotates, the toggle shaft 18 rotates and causes the pulling wire 9 to be wound around the toggle shaft 18. The floating cover 2 is floated and installed at the opening position of the wiring groove 10 of the frame shell 1. Therefore, when the toggle member 5 rotates, the toggle shafts 18 on both sides will rotate accordingly. Since one end of the pulling wire 9 is connected to the damping component and the other end is wound around the toggle shaft 18, once the toggle member 5 rotates, the pulling wire 9 can be wound around the toggle shaft 18, so that the damping component content, and then the damping shaft 6 is retracted and separated from the device host 100, so that the damping effect between the frame shell 1 and the device host 100 is lost, making the folding of the frame shell 1 easier.

[0025] See also Figure 1, Figure 2 as well as Figure 4 A mounting protrusion 4 is provided at the movable end of the frame shell 1, a toggle cavity 8 is provided on the mounting protrusion 4, the toggle member 5 is rotatably installed in the toggle cavity 8, and toggle shaft 18 holes are respectively provided on both sides of the toggle cavity 8, and the toggle shafts 18 on both sides of the toggle member 5 are rotatably installed in the toggle shaft 18 holes.

[0026] When the toggle member 5 rotates relative to the frame shell 1, an angle a less than 90 degrees is formed between the toggle member 5 and the frame shell 1. Figure 7 As shown, when it is necessary to open and use the damping LCD screen with a floating cover, it is only necessary to manually flip over the frame shell 1 of the damping LCD screen with a floating cover. When flipping, first hold the toggle member 5 with your hand to rotate the toggle member 5 to a certain angle, and then open the frame shell 1. At this time, since the damping shaft 6 is retracted and separated from the device host 100, it is very easy to open the frame shell 1 without damping. After the frame shell 1 is opened to the required use angle, the toggle member 5 can be reset to regain the damping effect.

[0027] Please continue to refer to 1 and Figure 3 A shaft mounting hole 16 is provided on one side of the device host 100 relative to the rotating shaft 7, and a damping positioning hole 11 is provided on the bottom surface of the shaft mounting hole 16. The frame shell 1 is installed in the shaft mounting hole 16 through the shaft. When the damping shaft 6 of the damping assembly is ejected to the outside of the rotating shaft 7, the damping shaft 6 is damped and installed into the damping positioning hole 11. When the damping shaft 6 is installed into the damping positioning hole 11, due to the damping effect of the damping shaft 6, the entire damping LCD screen with a floating cover has friction resistance when it rotates relative to the device host 100, and can stay at any use angle.

[0028] In order to facilitate the resetting of the damping shaft 6 , in this embodiment, the opening of the damping positioning hole 11 is in the shape of a trumpet opening, and the head of the damping shaft 6 is in a cone shape.

[0029] See also Figure 5 as well as Figure 6 The cover driving mechanism includes a driving fixed block 23 fixedly mounted on the pulling wire 9, an elastic metal sheet 24 is arranged on the driving fixed block 23, an angle less than 90 degrees is formed between the elastic metal sheet 24 and the driving fixed block 23, and a driving contact block 21 is arranged at the bottom of the floating cover 2 corresponding to the position of each driving fixed block 23; The position of the driving contact block 21 relative to the elastic metal sheet 24 forms a first inclined contact surface 22, and the elastic metal sheet 24 forms a second inclined contact surface on the side corresponding to the first inclined contact surface 22. When the pulling wire 9 is pulled, the elastic metal sheet 24 is squeezed and contacted with the driving contact block 21, and the floating surface cover 2 is raised from the upper end surface of the frame shell 1. When the toggle member 5 is manually rotated, since the frame shell 1 is in a closed state with the device host 100, the floating surface cover 2 cannot be raised from the upper end surface of the frame shell 1. At this time, the elastic metal sheet 24 will only be deformed after the pulling wire 9 is pulled and moved, and cannot The floating cover 2 is pushed upward and protrudes from the upper end surface of the frame shell 1. When the damping shaft 6 is retracted and the damping force between the frame shell 1 and the device host 100 disappears, the frame shell 1 can be lifted. At this time, the toggle member 5 remains in a rotating state, and the elastic metal sheet 24 and the driving contact block 21 remain unchanged in the length direction of the pulling wire 9. Since the elastic metal sheet 24 contacts the driving contact block 21 after the pulling wire 9 is pulled and elastically deforms, after the frame shell 1 is opened, the floating cover 2 will be pushed up under the elastic deformation restoring force of the elastic metal sheet 24. At this time, the floating cover 2 will protrude from the frame shell 1 and form a protrusion height h, as shown in FIG. Figure 7 and Figure 8 As shown, at this time, the entire damping LCD screen with a floating cover is in a normal use state, and the floating cover 2 remains in a raised state without being reset.

[0030] Among them, in order to keep the floating surface cover 2 in a raised state and not reset, both sides of the floating surface cover 2 are in frictional contact with the inner wall surface of the wiring groove 10, and the contact surface between the floating surface cover 2 and the wiring groove 10 is provided with a plurality of protruding heat dissipation guide rods, and the inner wall surface of the wiring groove 10 is provided with a guide slide groove at a position corresponding to each heat dissipation guide rod, and the floating surface cover 2 is guided and installed in the guide slide groove of the wiring groove 10 by the heat dissipation guide rods on both sides. When the floating surface cover 2 is raised above the upper end surface of the frame shell 1, the friction force between the two sides of the floating surface cover 2 and the wiring groove 10 keeps the floating surface cover 2 continuously raised above the upper end surface of the frame shell 1, and the heat of the damping LCD screen with the floating surface cover can be transferred to the metal floating surface cover 2. Since the heat dissipation guide rods are provided on both sides of the floating surface cover 2, the contact area with the air can be greatly increased, and the heat dissipation capacity of the display screen can be further improved. At the same time, since the two sides of the floating surface cover 2 are frictionally assembled with the frame shell 1, the floating surface cover 2 can maintain a raised state even if the toggle member 5 is reset.

[0031] like Fig. 9As shown, screen positioning and mounting grooves 25 are provided on both sides of the screen mounting cavity 3, and both sides of the LCD screen body are installed in the screen positioning and mounting grooves 25, and the screen positioning and mounting grooves 25 are communicated with the wiring grooves 10, and the heat of the LCD screen body is transferred to the wiring grooves 10 and dissipated by the metal floating surface cover 2. When the frame shell 1 is folded and covered relative to the device host 100, when it contacts the device host 100, the raised floating surface cover 2 contacts the device host 100, and even if there is an impact force, it can be absorbed by the raised floating surface cover 2. At this time, the floating surface cover 2 is retracted into the wiring groove 10 to absorb the impact force. This method can better make the frame shell 1 fit the device host 100, reduce the gap, and no additional rubber parts are required for buffering.

[0032] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope defined in the claims.

Claims

1. A damping liquid crystal screen with a floating cover, characterized in that: include: A frame shell (1), wherein a screen installation cavity (3) is provided in the middle of the frame shell (1), and a liquid crystal screen body is installed in the screen installation cavity (3); A floating cover (2) is mounted on the upper end surface of the frame shell (1). When the frame shell (1) and the liquid crystal screen body are covered with the device host (100), the floating cover (2) protruding from the upper end surface of the frame shell (1) serves as a buffer. When the floating cover (2) contacts the device host (100), the floating cover (2) retracts into the frame shell (1). At this time, the frame shell (1) and the device host (100) are completely in contact. A toggle member (5) is rotatably mounted on the opening and closing end of the frame shell (1); the end of the frame shell (1) far from the toggle member (5) is the rotation end; the rotation end of the frame shell (1) is rotationally connected to the device host (100); a rotation shaft (7) is provided at the rotation end of the frame shell (1); a telescopic damping component is installed in the rotation shaft (7); the frame shell (1) is rotationally connected to the device host (100) via the rotation shaft (7) and the damping component; a pulling mechanism is provided between the damping component and the toggle member (5); When the toggle member (5) is rotated, the pulling mechanism pulls the damping assembly, and the damping assembly is retracted into the rotating shaft (7). At this time, the frame shell (1) loses the damping force with the device host (100), and the pulling mechanism drives the floating surface cover (2) to protrude from the upper end surface of the frame shell (1).

2. The damping liquid crystal screen with a floating cover according to claim 1, characterized in that: A mounting cavity (14) is provided in the rotating shaft (7), and the damping assembly is movably mounted in the mounting cavity (14); The damping assembly comprises a damping shaft (6) and a sliding sleeve (12), wherein the sliding sleeve (12) is slidably mounted in a mounting cavity (14) of the rotating shaft (7), the damping shaft (6) is embedded in the sliding sleeve (12), and a portion of the damping shaft (6) extends out of the sliding sleeve (12); An ejection spring (13) is also installed in the installation cavity (14) of the rotating shaft (7), one end of the ejection spring (13) is in contact with the rotating shaft (7), and the other end of the ejection spring (13) is in contact with the sliding sleeve (12) to support and elastically eject the sliding sleeve (12) and the damping shaft (6). At this time, the damping shaft (6) is ejected to the outside of the rotating shaft (7). When the toggle member (5) is rotated, the sliding sleeve (12) and the damping shaft (6) are pulled by the pulling mechanism, and the damping shaft (6) is retracted into the rotating shaft (7). At this time, the damping shaft (6) is separated from the device host (100).

3. The damping liquid crystal screen with a floating cover according to claim 1, characterized in that: The pulling mechanism comprises a pulling steel wire (9) and a plurality of guide rollers (17). The pulling steel wire (9) and the plurality of guide rollers (17) are arranged in the wiring groove (10) of the frame shell (1). A cover driving mechanism is also arranged on the pulling steel wire (9). One end of the pulling steel wire (9) passes through a first wire hole (15) on the end face of the rotating shaft (7) and is fixedly connected to the end face of the damping component. The other end of the pulling steel wire (9) passes through a second wire hole (20) on the frame shell (1) and is wound and connected to the toggle shafts (18) on both sides of the toggle member (5). When the toggle member (5) rotates, the toggle shaft (18) rotates and causes the pulling steel wire (9) to be wound on the toggle shaft (18). The floating cover (2) is floatingly installed at the opening position of the wiring groove (10) of the frame shell (1).

4. The damping liquid crystal screen with a floating cover according to claim 1, characterized in that: The movable end of the frame shell (1) is provided with a mounting protrusion (4), a toggle cavity (8) is provided on the mounting protrusion (4), the toggle member (5) is rotatably mounted in the toggle cavity (8), and toggle shaft (18) holes are respectively provided on both sides of the toggle cavity (8), and the toggle shafts (18) on both sides of the toggle member (5) are rotatably mounted in the toggle shaft (18) holes.

5. The damping liquid crystal screen with a floating cover according to claim 1, characterized in that: When the toggle member (5) rotates relative to the frame shell (1), an angle less than 90 degrees is formed between the toggle member (5) and the frame shell (1).

6. The damping liquid crystal screen with floating cover according to claim 1, characterized in that: The device main body (100) is provided with a rotating shaft mounting hole (16) on one side opposite to the rotating shaft (7); a damping positioning hole (11) is provided on the bottom surface of the rotating shaft mounting hole (16); the frame shell (1) is mounted in the rotating shaft mounting hole (16) via the rotating shaft; when the damping shaft (6) of the damping assembly is pushed out to the outside of the rotating shaft (7), the damping shaft (6) is damped and installed in the damping positioning hole (11).

7. The damping liquid crystal screen with a floating cover according to claim 6, characterized in that: The opening of the damping positioning hole (11) is in the shape of a trumpet opening, and the head of the damping shaft (6) is in the shape of a cone.

8. The damping liquid crystal screen with floating cover according to claim 3, characterized in that: The cover driving mechanism comprises a driving fixed block (23) fixedly mounted on the pulling steel wire (9), an elastic metal sheet (24) is arranged on the driving fixed block (23), an angle less than 90 degrees is formed between the elastic metal sheet (24) and the driving fixed block (23), and a driving contact block (21) is arranged at the bottom of the floating cover (2) corresponding to the position of each driving fixed block (23); The driving contact block (21) forms a first inclined contact surface (22) at a position relative to the elastic metal sheet (24), and the elastic metal sheet (24) forms a second inclined contact surface on a side corresponding to the first inclined contact surface (22). When the pulling wire (9) is pulled, the elastic metal sheet (24) is pressed into contact with the driving contact block (21), and the floating surface cover (2) is raised above the upper end surface of the frame shell (1).

9. The damping liquid crystal screen with floating cover according to claim 3, characterized in that: The two sides of the floating surface cover (2) are in frictional contact with the inner wall surface of the wiring groove (10); the contact surface between the floating surface cover (2) and the wiring groove (10) is provided with a plurality of protruding heat dissipation guide rods; the inner wall surface of the wiring groove (10) is provided with a guide slot at a position corresponding to each heat dissipation guide rod; the floating surface cover (2) is guided and installed in the guide slot of the wiring groove (10) by the heat dissipation guide rods on both sides; when the floating surface cover (2) protrudes from the upper end surface of the frame shell (1), the friction force between the two sides of the floating surface cover (2) and the wiring groove (10) keeps the floating surface cover (2) continuously protruding from the upper end surface of the frame shell (1).

10. The damping liquid crystal screen with floating cover according to claim 1, characterized in that: Screen positioning installation grooves (25) are arranged on both sides of the screen installation cavity (3), and both sides of the liquid crystal screen body are installed in the screen positioning installation grooves (25). The screen positioning installation grooves (25) are communicated with the wiring grooves (10), and the heat of the liquid crystal screen body is transferred to the wiring grooves (10) and dissipated by the metal floating cover (2).

Images