Screen lifting and rotating device

Abstract

The utility model relates to a screen lifting and rotating device, which is mounted between a screen of a notebook computer and a base and comprises a fixed sheet, a rotating sheet, a rotating shaft, a rotating shaft, a rotating shaft and a rotating shaft, and is characterized in that the fixed sheet is arranged in the base and is provided with a rack; the displacement block is slidably connected to one side of the fixing piece. The driven shaft is provided with a gear and a driven rod, the gear is contained in the displacement block and meshed with the rack, and the driven rod is provided with a driven cam; the driving shaft is provided with a driving part and a driving rod, the driving part penetrates through the outer side of the displacement block and is connected with the screen, and the driving rod is provided with a driving cam linked with the driven cam; when the screen is turned over, the driving cam of the driving shaft drives the driven cam of the driven shaft to rotate synchronously, then the gear of the driven shaft is driven to move upwards along the rack of the fixing piece, a gap is generated between the screen and the base, and mutual interference between the screen and the base is avoided when the screen is opened and closed.

Description

Technical Field

[0001] This utility model relates to the technical field of lifting and rotating devices, and in particular to a screen lifting and rotating device for a laptop computer. Background Technology

[0002] With the advancement of technology, laptops, with their integrated screen and base, not only allow consumers to directly operate the keyboard by opening the screen while working, but also offer the convenience of portability. See CN108397474B "Hinge Module and Electronic Device Using It", CN117267252A "Large-Angle Pivot with Reciprocating Lifting Function", and TWM652882 "Dual-Axis Hinge Capable of Translation", all of which disclose a hinge device between the screen and the base, providing the screen with a reciprocating rotational travel that allows it to open or close relative to the base. However, some hinge devices may interfere with the base when the screen is opened or closed, affecting the smoothness of use and potentially causing damage or breakage to the screen or base. Utility Model Content

[0003] The main purpose of this utility model is to provide a screen lifting and rotating device.

[0004] To achieve the above objectives and effects, this utility model provides a screen lifting and rotating device, installed between a base and a screen, allowing the screen to be lifted relative to the base. It includes: a fixing plate, installed inside the base and having a longitudinal side plate with a rack; a displacement block, slidably connected to one side of the longitudinal side plate, with an opening on the side corresponding to the rack; a driven shaft, having a gear and a driven rod connecting the gear, the gear being housed inside the displacement block and meshing with the rack through the opening, the driven rod having a synchronously rotating driven cam; and a driving shaft, having a driving part and a driving rod, the driving shaft passing through the displacement block and coaxially arranged with the driven shaft, the driving part being exposed on one side of the displacement block and installed inside the screen, the driving rod having a synchronously rotating driving cam linked to the driven cam. When the screen is lifted upwards, the driving cam of the driving shaft drives the driven cam of the driven shaft to rotate, thereby causing the gear of the driven shaft to climb upwards along the rack of the fixing plate, and causing the displacement block to move upwards synchronously, allowing the screen to avoid interference from the base when lifted.

[0005] The longitudinal side plate of the fixed plate is further provided with a pivot groove, and the displacement block has a pivot part that is pivotally connected to the pivot groove, so that the displacement block and the fixed plate form a pivot group, and the displacement block can be moved upward relative to the fixed plate.

[0006] The pivot part has a first pivot hole, and the pivot groove has a second pivot hole corresponding to the first pivot hole. The pivot member is pivotally provided with the pivot part and the pivot groove, so that the displacement block moves upward relative to the fixed piece.

[0007] The displacement block has a driven through hole inside for accommodating the gear of the driven shaft. The driven through hole is connected to the opening. The displacement block also has an active through hole adjacent to the driven through hole. The active through hole allows the active part of the active shaft to pass through and be exposed on the outside of the displacement block.

[0008] The driven cam has a driven stop ring with a driven concave arc portion on its surface, and the driving cam has a driving stop ring corresponding to the driven stop ring with a driving concave arc portion on its surface. When the screen is lifted upward, one end of the driving concave arc portion abuts against the driven concave arc portion and rotates, thereby driving the driven shaft to rotate by an angle.

[0009] The driven cam also has a driven shank, and the driving cam also has a driving shank corresponding to the driven shank. The surface of the driving stop ring is recessed with a driving concave arc corresponding to the driven concave arc. When the screen is lifted up, the driving shank and the driven shank mesh and drive the driven shaft to rotate by that angle.

[0010] This further includes: a torque assembly, which is sleeved on the driven rod and the driving rod.

[0011] The driven cam is sleeved on the driven rod. The outer diameter of the driven rod has a first cut surface, and the inner side of the driven cam has a second cut surface. The first cut surface fits into the second cut surface, so that the driven cam and the driven rod rotate synchronously.

[0012] The active cam is sleeved on the active rod. The outer diameter of the active rod has a third slit, and the inner side of the active cam has a fourth slit. The third slit fits into the fourth slit, so that the active cam and the active rod rotate synchronously.

[0013] The active perforation is provided with a first stop surface, and the active part is provided with a second stop surface in the radial direction corresponding to the first stop surface. When the screen is opened to the maximum angle, the first stop surface abuts against the second stop surface. Attached Figure Description

[0014] Figure 1 This is an exploded perspective view of the present invention.

[0015] Figure 2 This is a three-dimensional composite diagram of the present invention.

[0016] Figure 3 This is a three-dimensional composite view of the present invention from another perspective.

[0017] Figure 4 This is a schematic diagram of the present invention installed on the screen and the base in a closed state.

[0018] Figure 5 For the present utility model Figure 4 Sectional view of V-V.

[0019] Figure 6 For the present utility model Figure 4 Sectional view of VI-VI.

[0020] Figure 7 For the present utility model Figure 4 Sectional view of VII-VII.

[0021] Figure 8 This is a schematic diagram of the present invention installed on the screen and the base in a semi-open state.

[0022] Figure 9 For the present utility model Figure 8 Sectional view of IX-IX.

[0023] Figure 10 For the present utility model Figure 8 Sectional view of X-X.

[0024] Figure 11 For the present utility model Figure 8 XI-XI sectional view.

[0025] Figure 12 This is a schematic diagram of the present invention installed on the screen and base in a fully open state.

[0026] Figure 13 For the present utility model Figure 12 Sectional view of XIII-XIII.

[0027] Figure 14 For the present utility model Figure 12 Sectional view of XIV-XIV.

[0028] Figure 15 For the present utility model Figure 12 XV-XV sectional view.

[0029] Figure 16 For the present utility model Figure 12 XVI-XVI sectional view.

[0030] In the picture:

[0031] Fixed plate: 1; Longitudinal side plate: 10; Rack: 100; Pivot groove: 101; First pivot hole: 102; Base: 2; Displacement block: 3; Driven through hole: 30;

[0032] Active perforation: 31; First stop surface: 311; Opening: 32; Pivot part: 33; Second pivot hole: 330; Driven shaft: 4; Gear: 40; Driven rod: 41;

[0033] First cut surface: 411; Driven cam: 42; Driven ratchet: 420; Driven stop ring: 421; Driven concave arc portion: 422; Second cut surface: 423;

[0034] Drive shaft: 5; Drive unit: 50; Second stop surface: 501; Drive rod: 51; Third cut surface: 511; Drive cam: 52; Drive ratchet: 520;

[0035] Active stop ring: 521; Active concave arc portion: 522; Fourth slit: 523; Screen: 6; Torque assembly: 7; Pivot T. Detailed Implementation

[0036] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention. Please refer to... Figures 1 to 16 As shown, the screen lifting and rotating device of this utility model is installed between the base 2 and the screen 6, so that the screen 6 can be lifted relative to the base 2. It mainly includes a fixing plate 1, a displacement block 3, a driven shaft 4, a driving shaft 5 and a torque component 7.

[0037] The fixing piece 1 is installed inside the base 2 and has a longitudinal side piece 10. It is made of iron sheet and is L-shaped. The flat part is fixedly assembled on the base 2, and the vertical part is the longitudinal side piece 10. One side of it is provided with a rack 100 and an adjacent position is provided with a pivot groove 101. The top and bottom of the pivot groove 101 are respectively provided with a first pivot hole 102.

[0038] The displacement block 3 is slidably connected to the longitudinal side plate 10 of the fixing plate 1. Preferably, the displacement block 3 is pivotally assembled to the longitudinal side plate 10 of the fixing plate 1. The displacement block 3 has a coaxial driven through hole 30 and an active through hole 31 inside. The active through hole 31 has a first stop surface 311. The displacement block 3 has an opening 32 and a pivot part 33 on one side corresponding to the rack 100 and pivot groove 101 of the fixing plate 1, respectively. The opening 32 communicates with the driven through hole 30. The pivot part 33 has a second pivot hole 330 corresponding to the first pivot hole 102. When the pivot part 33 is pivotally mounted in the pivot groove 101, the pivot member T is pivotally mounted in the first pivot hole 102 and the second pivot hole 330, so that the displacement block 3 and the fixing plate 1 form a pivotal relationship, and the displacement block 3 can move upward relative to the fixing plate 1.

[0039] Driven shaft 4 passes through displacement block 3. One end of driven shaft 4 has gear 40 and driven rod 41 connected to gear 40. Gear 40 is housed in driven through hole 30 and meshes with rack 100 through opening 32. Driven rod 41 is fitted with driven cam 42, or is integrally formed with driven cam 42. When driven cam 42 is fitted on driven rod 41, a first cut surface 411 is provided on the outer diameter of driven rod 41, and a second cut surface 423 is provided on the inner side of driven cam 42. The first cut surface 411 fits against the second cut surface 423, so that driven cam 42 and driven rod 41 rotate synchronously. The surface of driven cam 42 has driven ratchet 420 and driven stop ring 421. Driven stop ring 421 has driven concave arc portion 422. The driven cam 42 may be provided with a driven stop ring 421 having a driven concave arc portion 422, or may be provided with a driven thorn 420 and a driven stop ring 421 having a driven concave arc portion 422 at the same time.

[0040] The drive shaft 5 passes through the displacement block 3. One end of the drive shaft 5 has a drive part 50 and a drive rod 51 connected to the drive part 50. The drive shaft 5 passes through the drive hole 31 of the displacement block 3 and is coaxially arranged with the driven shaft 4. The drive part 50 of the drive shaft 5 is exposed on one side of the displacement block 3 and is fixedly installed inside the screen 6 and rotates synchronously with the screen 6. The drive rod 51 is exposed on the other side of the displacement block 3. The drive rod 51 is fitted with a drive cam 52 that can move with the driven cam 42, or with the drive cam 5... 2. The active cam 52 is integrally formed. When the active rod 51 is fitted with the active cam 52, the outer diameter of the active rod 51 has a third cut surface 511, and the inner side of the active cam 52 has a fourth cut surface 523. The third cut surface 511 fits against the fourth cut surface 523, causing the active cam 52 to rotate synchronously with the active rod 51. The active cam 52 has an active ratchet 520 and an active stop ring 521 corresponding to the driven ratchet 420 and the driven stop ring 421, respectively. The surface of the active stop ring 521 is recessed with an active concave arc portion 522. The active cam 52 can be provided with an active stop ring 521 with an active concave arc portion 522 alone, or simultaneously with an active ratchet 520 and an active stop ring 521 with an active concave arc portion 522. The active part 50 has a second stop surface 501 corresponding to the first stop surface 311 on its radial direction. When the screen 6 is tilted upwards to its maximum angle, the first stop surface 311 abuts against the second stop surface 501.

[0041] Torque assembly 7 is installed inside base 2 and sleeved on driven rod 41 of driven shaft 4 and drive rod 51 of drive shaft 5, providing torque when screen 6 is flipped up.

[0042] For usage, please refer to the following: Figures 4 to 7The diagram shows the state of the screen 6 covering the base 2. In this state, if the screen 6 is opened directly with the drive shaft 5 as the rotation center, it will interfere with the base 2. At this time, the gear 40 of the driven shaft 4 meshes with the lower side of the rack 100 of the fixed plate 1, and the drive ratchet 520 of the drive cam 52 and the driven ratchet 420 of the driven cam 42 mesh with each other. The drive concave arc portion 522 of the drive stop ring 521 and the driven concave arc portion 422 of the driven stop ring 421 are in a non-contact state.

[0043] Please refer to the following: Figures 8 to 11 The diagram shows the screen 6 and base 2 in a semi-open state. When the screen 6 is lifted upwards, the active ratchet 520 of the active shaft 5 drives the driven ratchet 420 of the driven shaft 4 to rotate, which in turn drives the gear 40 of the driven shaft 4 to climb upwards a certain distance along the rack 100 of the fixed plate, and drives the displacement block 3 to move upwards synchronously, so that the screen 6 can avoid interference from the base 2 when it is lifted. The number of ratchet teeth of the active ratchet 520 and the driven ratchet 420 can be adjusted according to the required distance to avoid interference between the screen and the base.

[0044] In another embodiment, the active concave arc portion 522 of the active stop ring 521 and the driven concave arc portion 422 of the driven stop ring 421 can be provided separately, without the need for the active thorn 520 and the driven thorn 420. When the screen 6 is lifted upwards, the lower end of the active concave arc portion 522 gradually contacts and abuts against the driven concave arc portion 422 during rotation, and drives the driven shaft 4 to rotate at a certain angle as the active shaft 5 continues to rotate, thereby driving the displacement block 3 to move upwards synchronously, so that the screen 6 can avoid interference from the base 2 when it is lifted. In addition, after the outer periphery of the active stop ring 521 gradually enters the driven concave arc portion 422, it no longer drives the driven shaft 4 to rotate.

[0045] Please refer to the following: Figures 12 to 16 The diagram shows the screen 6 in its fully open state with the base 2. In this state, the outer edge of the active stop ring 521 of the active cam 52 abuts against the driven concave arc portion 422 of the driven cam 42, preventing the driven shaft 4 from rotating and preventing the gear 40 of the driven shaft 4 from disengaging from the rack 100 of the fixing plate. In other words, the abutting relationship between the active cam 52 and the driven cam 42 prevents the driven shaft 4 from continuing to rotate, thus avoiding interference between the screen 6 and the base 2 when the screen 6 is closed. Furthermore, when the screen 6 is opened to its maximum angle, the first stop surface 501 abuts against the second stop surface 311, fixing the screen 6 at its maximum angle.

[0046] It is worth mentioning that when the screen 6 is opened or closed, the drive shaft 5 drives the driven shaft 4 to rotate, and the torque component 7 on the driven rod 41 and the drive rod 51 generates torque, providing a torque feel such as light opening and heavy closing.

[0047] The above-described embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. A screen lifting and rotating device, installed between a base and a screen, enabling the screen to be lifted relative to the base, characterized in that, include: A fixing piece is installed inside the base and has a longitudinal side piece, the longitudinal side piece being provided with a toothed rack; A displacement block is slidably connected to one side of the longitudinal side plate, and the displacement block has an opening on the side corresponding to the rack. A driven shaft has a gear and a driven rod. The gear is housed inside the displacement block and meshes with the rack through the opening. The driven rod has a driven cam that rotates synchronously. as well as A drive shaft has a drive part and a drive rod. The drive shaft passes through the interior of the displacement block and is arranged coaxially with the driven shaft. The drive part is exposed on one side of the displacement block and installed inside the screen. The drive rod has a drive cam that rotates synchronously and is linked to the driven cam. When the screen is lifted upwards, the active cam of the active shaft drives the driven cam of the driven shaft to rotate, which in turn drives the gear of the driven shaft to climb upwards along the rack of the fixed plate, and drives the displacement block to move upwards synchronously, so that the screen avoids interference from the base when it is lifted.

2. The screen lifting and rotating device as described in claim 1, characterized in that, The longitudinal side plate of the fixing plate is further provided with a pivot groove, and the displacement block has a pivot part pivotally connected to the pivot groove, so that the displacement block and the fixing plate form a pivot assembly, and the displacement block can be displaced upward relative to the fixing plate.

3. The screen lifting and rotating device as described in claim 2, characterized in that, The pivot portion has a first pivot hole, and the pivot groove has a second pivot hole corresponding to the first pivot hole. A pivot member pivotally connects the pivot portion and the pivot groove, causing the displacement block to move upward relative to the fixed piece.

4. The screen lifting and rotating device as described in claim 1, characterized in that, The displacement block has a driven through hole inside for accommodating the gear of the driven shaft. The driven through hole communicates with the opening. The displacement block also has an active through hole adjacent to the driven through hole. The active through hole allows the active part of the active shaft to pass through and be exposed on the outside of the displacement block.

5. The screen lifting and rotating device as described in claim 1, characterized in that, The driven cam has a driven stop ring, and the surface of the driven stop ring is recessed with a driven concave arc portion. The driving cam has a driving stop ring corresponding to the driven stop ring, and the surface of the driving stop ring is recessed with a driving concave arc portion corresponding to the driven concave arc portion. When the screen is lifted upward, one end of the driving concave arc portion abuts against the driven concave arc portion and rotates, thereby driving the driven shaft to rotate by an angle.

6. The screen lifting and rotating device as described in claim 5, characterized in that, The driven cam also has a driven shank, and the driving cam also has a driving shank corresponding to the driven shank. The surface of the driving stop ring is recessed with a driving concave arc portion corresponding to the driven concave arc portion. When the screen is lifted upward, the driving shank engages with the driven shank, driving the driven shaft to rotate by the angle.

7. The screen lifting and rotating device as described in claim 1, characterized in that, Further includes: A torque assembly is sleeved on the driven rod and the driving rod.

8. The screen lifting and rotating device as described in claim 1, characterized in that, The driven cam is sleeved on the driven rod. The driven rod has a first cut surface on its outer diameter and a second cut surface on its inner side. The first cut surface fits into the second cut surface, so that the driven cam and the driven rod rotate synchronously.

9. The screen lifting and rotating device as described in claim 1, characterized in that, The active cam is sleeved on the active rod. The active rod has a third slit on its outer diameter and a fourth slit on its inner side. The third slit fits against the fourth slit, so that the active cam and the active rod rotate synchronously.

10. The screen lifting and rotating device as described in claim 4, characterized in that, The active perforation is provided with a first stop surface, and the active part is provided with a second stop surface radially upward corresponding to the first stop surface. When the screen is opened to the maximum angle, the first stop surface abuts against the second stop surface.

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