A damping LCD screen with a floating cover

Abstract

The present invention discloses a damping liquid crystal screen with a floating surface cover, comprising 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); and a floating surface cover (2) 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 surface cover (2) protruding from the upper end surface of the frame shell (1) serves as a buffer. By utilizing a toggle member, the present invention can greatly reduce the damping property of the damping liquid crystal screen with the floating surface cover when it is opened, reduce the driving extrusion force applied to the screen, increase the service life of the liquid crystal screen, and reduce the probability of damage to the rotating shaft part. At the same time, the toggle member can make the floating panel protrude from the upper end surface of the frame shell, effectively increasing the heat dissipation performance of the display screen, and also playing a buffering role 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 devices with flip screens, portability, durability, and user experience are becoming increasingly important. As a key component of these devices, the flip function of LCD screens not only provides portability but also presents new technical challenges.

[0003] In the prior art, to ensure that the LCD screen can maintain a suitable viewing angle after opening, a damping structure is usually installed on both sides of the display screen's hinged portion with the host device. This structure allows the screen to remain at any angle during the opening process, adapting to different users' viewing habits. However, this design also requires a greater force to open the screen, especially when the user only applies force on one side, which leads to stress concentration, causing the screen to open off-center. The long-term unbalanced force can easily damage the hinged portions on both sides due to the unbalanced force, thus affecting the display quality and even reducing the lifespan of the LCD screen.

[0004] 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 the screen to deform after long-term use, resulting in damage to the material. Due to the poor bending resistance of the screen, the service life of the entire screen is greatly reduced;

[0005] Furthermore, to prevent the LCD screen from colliding with the main device when folded closed, rubber bumpers are often added to the contact surface to reduce impact. However, this protruding bumper design increases the gap between the device and the main device when closed, which not only affects the overall appearance of the device but also allows dust and moisture to enter during transportation, causing friction between the display and the main device surface, potentially damaging the device. Furthermore, since the bumpers are often secured by adhesive, they are prone to falling off after long-term use, compromising the device's protective effect. Summary of the Invention

[0006] In order to solve the above problems, the present invention provides a damping LCD screen with a floating cover, which can eliminate the damping properties of the damping LCD screen with the 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.

[0007] The present invention is realized by the following technical solutions: a damping liquid crystal screen with a floating cover, comprising a frame shell, 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;

[0008] A floating cover is mounted on the upper end surface of the frame housing. When the frame housing and the LCD screen body are covered relative to the device host, the floating cover protruding from the upper end surface of the frame housing acts as a buffer. When in contact with the device host, the floating cover retracts into the frame housing. At this time, the frame housing and the device host are completely in contact.

[0009] A toggle member is rotatably mounted on the opening and closing end of the frame shell, the frame shell being distal to the toggle member as a rotating end, the rotating end of the frame shell being rotatably connected to the device host, the rotating end of the frame shell being provided with a rotating shaft, a telescopic damping assembly being installed in the rotating shaft, the frame shell being rotatably connected to the device host via the rotating shaft and the damping assembly, and a pulling mechanism being provided between the damping assembly and the toggle member;

[0010] 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.

[0011] 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;

[0012] The damping assembly includes 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;

[0013] An ejection spring is also installed in the mounting 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 and supports 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.

[0014] 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. 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. The floating face cover is floated and installed at the opening position of the wiring groove of the frame shell.

[0015] As a preferred technical solution, the movable end of the frame shell is provided with a mounting protrusion, a toggle cavity is opened on the mounting protrusion, the toggle member is rotatably installed in the toggle cavity, and toggle shaft holes are respectively provided on both sides of the toggle cavity, and the toggle shafts on both sides of the toggle member are rotatably installed in the toggle shaft holes.

[0016] As a preferred technical solution, when the toggle member rotates relative to the frame shell, an angle smaller than 90 degrees is formed between the toggle member and the frame shell.

[0017] As a preferred technical solution, the device main body is provided with a rotating shaft mounting hole on one side relative to the rotating shaft, and a damping positioning hole is provided on the bottom surface of the rotating shaft mounting hole. The frame shell is installed in the rotating shaft mounting hole through the rotating shaft. When the damping shaft of the damping assembly is pushed out to the outside of the rotating shaft, the damping shaft damper is installed in the damping positioning hole.

[0018] 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.

[0019] As a preferred technical solution, the face cover driving mechanism includes a driving fixed block fixedly mounted on the pulling wire, an elastic metal sheet is provided 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 provided at the bottom of the floating face cover corresponding to the position of each driving fixed block;

[0020] 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 into contact with the driving contact block, and the floating surface cover protrudes from the upper end surface of the frame shell.

[0021] As a preferred technical solution, the two sides of the floating surface cover are in frictional contact with the inner wall of the wiring groove, and the contact surface between the floating surface cover and the wiring groove is provided with a plurality of protruding heat dissipation guide rods. The inner wall of the wiring groove is provided with a guide groove corresponding to the position of each heat dissipation guide rod. The floating surface cover is installed in the guide 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.

[0022] As a preferred technical solution, screen positioning mounting grooves are provided on both sides of the screen mounting cavity, and both sides of the LCD screen body are installed into the screen positioning mounting grooves. The screen positioning mounting 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.

[0023] 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 opened, thereby achieving an easier opening operation, greatly reducing the force required by the user to apply when opening the display screen, and further reducing the stress on the hinged end and contact end position 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 open and close the display screen, and can ensure that the device maintains good performance during long-term use.

[0024] Secondly, the present invention provides a linked floating cover. When the display screen is in use, the floating cover is slightly raised above the frame housing, which not only helps 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 raised floating cover effectively resists damage that may be caused by impact during the closing process, thereby enhancing the impact resistance of the damping LCD screen with the floating cover, thereby further improving the durability of the damping LCD screen with the floating cover.

[0025] 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

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 any creative work.

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of the present invention after removing the floating cover;

[0029] Figure 3 For the present invention Figure 2 A partial enlarged view of point A in the middle;

[0030] Figure 4 For the present invention Figure 2 A partial enlarged view of point B in the middle;

[0031] Figure 5 It is a side cross-sectional schematic diagram of the present invention;

[0032] Figure 6 For the present invention Figure 5 A partial enlarged view of point C in the middle;

[0033] Figure 7 This is the usage state of the toggle member of the present invention after rotation;

[0034] Figure 8 For the present invention Figure 7 A partial enlarged view of point D in the middle;

[0035] Figure 9 A diagram showing the use state of the toggle member of the present invention after rotation from another perspective;

[0036] Description of reference numerals:

[0037] 1. Frame shell; 2. Floating surface cover; 3. Screen mounting cavity; 4. Mounting 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. Mounting cavity; 15. First wire hole; 16. Rotating shaft mounting 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 mounting groove; 100. Equipment host. DETAILED DESCRIPTION

[0038] All features disclosed in this specification, or all steps in the disclosed methods or processes, except mutually exclusive features and / or steps, can be combined in any manner.

[0039] Any feature disclosed in this specification (including any appended claims, abstract, and drawings), unless otherwise stated, may be replaced by other equivalent or similar features. In other words, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0040] like Figure 1 As shown, a damping LCD screen with a floating cover of the present invention includes a frame housing 1, wherein the frame housing 1 has a screen mounting cavity 3 in the middle thereof, and the LCD screen body is mounted in the screen mounting cavity 3. In this embodiment, the frame housing 1 can be any type of housing and can be made of plastic, and the LCD screen body is mounted in the middle thereof;

[0041] The device further comprises a floating cover 2, which is mounted on the upper end surface of the frame shell 1. When the frame shell 1 and the LCD 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 acts 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 fitted together. 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 LCD screen, the floating cover 2 can be raised from the frame shell 1.

[0042] 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 assembly 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 assembly. A pulling mechanism is provided between the damping assembly and the toggle member 5. The pulling mechanism is used to cancel the damping effect of the damping assembly, so that when the frame shell 1 is flipped, it no longer has damping properties and is more lightweight. At the same time, the pulling mechanism can be used to make the floating surface cover 2 protrude from the upper end surface of the frame shell 1.

[0043] 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 easy. Only a lighter force is needed to open the damping LCD screen with the floating surface cover. It is no longer necessary to overcome its damping force to open the frame shell 1. The damping LCD screen with the floating surface cover is used. After opening, the toggle member 5 is reset to allow the rotating end of the frame shell 1 to obtain the damping effect again, and then it can be used at any angle position.

[0044] 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;

[0045] The damping assembly includes a damping shaft 6 and a sliding sleeve 12. The sliding sleeve 12 is slidably mounted within the mounting cavity 14 of the rotating shaft 7. The damping shaft 6 is embedded within the sliding sleeve 12, and a portion of the damping shaft 6 extends outside the sliding sleeve 12. A guide slider can be provided on the outside of the sliding sleeve 12, and a corresponding guide slot can be provided within the mounting cavity 14. During installation, the sliding sleeve 12 slides into the guide slot via the guide slider, allowing the sliding sleeve 12 to be guided and extended within the rotating shaft 7.

[0046] In order to enable the damping shaft 6 and the sliding sleeve 12 to have a reset capability, in this 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, 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 inside of the rotating shaft 7. At this time, the damping shaft 6 is separated from the device host 100. At this time, 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. Under the action of the ejection spring 13, the sliding sleeve 12 and the damping shaft 6 are reset, thereby regaining the damping effect.

[0047] Please continue to see Figure 3The pulling mechanism includes a pulling wire 9 and a plurality of guide rollers 17, and 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. When the pulling wire 9 is pulled, it can be guided by the guide roller 17. A surface 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 to the end face of the damping component. 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, so 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 is contained, 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.

[0048] 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, and a toggle cavity 8 is opened 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. The toggle shafts 18 on both sides of the toggle member 5 are rotatably installed in the toggle shaft 18 holes.

[0049] 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, 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 is reset to regain the damping effect.

[0050] Please continue to refer to 1 and Figure 3A 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 usage angle.

[0051] 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 the shape of a cone.

[0052] 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 provided on the driving fixed block 23, and an angle less than 90 degrees is formed between the elastic metal sheet 24 and the driving fixed block 23. A driving contact block 21 is provided at the bottom of the floating cover 2 corresponding to the position of each driving fixed block 23;

[0053] 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 be deformed. 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 drive contact block 21 remain unchanged in the length direction of the pulling wire 9. Since the elastic metal sheet 24 contacts the drive 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 the floating cover is in normal use, and the floating cover 2 remains in the raised state and does not reset.

[0054] Among them, in order to keep the floating surface cover 2 in a raised state and not reset, the two sides of the floating surface cover 2 are in frictional contact with the inner wall 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 of the wiring groove 10 is provided with a guide slide groove corresponding to each heat dissipation guide rod. 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. The heat of the damping LCD screen with a 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, further improving the heat dissipation capacity of the display screen. 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.

[0055] like Figure 9 As shown, screen positioning 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 mounting grooves 25. The screen positioning 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 closed relative to the device host 100, when it contacts the device host 100, the raised floating surface cover 2 contacts the device host 100. 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 with the device host 100, reduce the gap, and no additional rubber parts are required for buffering.

[0056] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection defined in the claims.

Claims

1. A damping liquid crystal screen with a floating cover, characterized in that: include: A frame shell (1), wherein the frame shell (1) has a screen installation cavity (3) in the middle, 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 relative to 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 distal end of the frame shell (1) from the toggle member (5) is a rotating end; the rotating end of the frame shell (1) is rotatably connected to the device host (100); a rotating shaft (7) is provided at the rotating end of the frame shell (1); a telescopic damping assembly is installed in the rotating shaft (7); the frame shell (1) is rotatably connected to the device host (100) via the rotating shaft (7) and the damping assembly; a pulling mechanism is provided between the damping assembly and the toggle member (5); 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 pulling mechanism drives the floating surface cover (2) to protrude from the upper end surface of the frame shell (1); 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 outside 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 interior of the rotating shaft (7). At this time, the damping shaft (6) is separated from the device host (100); The pulling mechanism includes a pulling wire (9) and a plurality of guide rollers (17), and the pulling wire (9) and the plurality of guide rollers (17) are arranged in the wiring groove (10) of the frame shell (1). A face 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 to 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). When the toggle member (5) rotates, the toggle shaft (18) rotates and causes the pulling wire (9) to be wound on the toggle shaft (18), and the floating face cover (2) is floatingly installed at the opening position of the wiring groove (10) of the frame shell (1).

2. The damping liquid crystal display 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.

3. The damping liquid crystal display 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 smaller than 90 degrees is formed between the toggle member (5) and the frame shell (1).

4. The damping liquid crystal display with a 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 relative to the rotating shaft (7), and 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).

5. The damping liquid crystal display with a floating cover according to claim 4, 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.

6. The damping liquid crystal display with a floating cover according to claim 1, characterized in that: The cover driving mechanism comprises a driving fixed block (23) fixedly mounted on the pulling wire (9), an elastic metal sheet (24) is provided 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 provided 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 squeezed into contact with the driving contact block (21), and the floating surface cover (2) is raised from the upper end surface of the frame shell (1).

7. The damping liquid crystal display with a floating cover according to claim 1, 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) is raised above the upper end surface of the frame shell (1), the friction 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).

8. The damping liquid crystal display with a floating cover according to claim 1, characterized in that: Screen positioning installation grooves (25) are provided 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).

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