Notebook computer screen expansion device

Abstract

The utility model relates to a notebook computer screen expanding device, in particular to an adjustable notebook computer screen expanding device. The first auxiliary screen and the second auxiliary screen are the same in structure and are symmetrically and movably arranged on the two sides of the clamping mechanism, a clamping pulling plate mechanism is movably arranged on one side of the clamping mechanism, the clamping mechanism comprises a panel and a bottom shell, the panel is fixedly connected with the bottom shell, a pulling plate is arranged in the clamping pulling plate mechanism, and a main body part of the pulling plate is arranged in the bottom shell; a plurality of springs are arranged in the bottom shell and connected with the pulling plate, a control mainboard is further arranged in the bottom shell and electrically connected with the first auxiliary screen and the second auxiliary screen, and the detachable expansion device can be clamped and assembled with an original screen, can also be independently placed for use and can be assembled with screens of different sizes for use. And the multi-angle rotation of the two secondary screens can bring better use experience to a user.

Description

Technical Field

[0001] The utility model relates to a notebook computer screen expansion device, in particular to an adjustable notebook computer screen expansion device. Background Art

[0002] People often need to use a notebook computer for work or entertainment in daily life. Most of the existing notebook computers have a single display screen structure, with a small interface, which is inconvenient when more content needs to be browsed. And when the display content needs to be shared, the computer needs to be rotated constantly, or the computer needs to be connected to an external display device for sharing, which is rather inconvenient to use.

[0003] To expand the display interface of the notebook computer and improve the sharing convenience, various expansion schemes have been adopted in the prior art. For example, a dual-display screen structure has been designed, with one being the main display screen and the other being a secondary display screen for operation. The secondary display screen can be used as a display screen, a keyboard, or can be connected to an external keyboard to improve the operation convenience. However, since the rotation angle of the display screen is limited during sharing, the sharing effect is restricted. Therefore, a secondary screen scheme directly cooperating with the main display screen has also been proposed in the prior art. The patented technology with the publication number CN212112279U discloses a computer split-screen device installed on a notebook computer. The notebook computer has a hinge structure and is divided into a screen page and a keyboard page. The device includes a fixed sleeve, a storage frame, an expansion screen, and a keyboard. Multiple fixing clips are provided on the fixed sleeve, and the fixed sleeve is detachably installed on the back of the screen page of the notebook computer through the fixing clips. The storage frame is installed on the back of the fixed sleeve, and a first accommodation cavity and a second accommodation cavity communicating with the first accommodation cavity are provided on the storage frame. The expansion screen is placed with the screen facing outwards and is hinged to one side of the storage frame, and the expansion screen has a first position for being stored in the second accommodation cavity and a second position for being pulled out from the second accommodation cavity. The keyboard is hinged to the bottom side of the storage frame and has a first state for being stored in the first accommodation cavity to cover the expansion screen and a second state for being pulled out from the first accommodation cavity for use. However, in this scheme, the expansion screen cannot be separated from the main screen, and the best sharing effect can only be obtained when the screen is kept vertical during shared use with them, and there is a certain lack in the use experience. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a notebook computer screen expansion device aiming at the defects or deficiencies in the prior art. The detachable expansion device can not only be clamped and assembled with the original screen, but also be placed and used alone, and can be assembled and used with screens of different sizes. The multi-angle rotation of the two secondary screens can bring a better use experience to the user.

[0005] To achieve the above object, the following technical solutions are adopted in the utility model: It includes a clamping mechanism 1, a first secondary screen 2, and a second secondary screen 3. The first secondary screen 2 and the second secondary screen 3 have the same structure and are symmetrically and movably arranged on both sides of the clamping mechanism 1. A clamping pull plate mechanism 6 is movably arranged on one side of the clamping mechanism 1. The clamping mechanism 1 includes a panel 4 and a bottom case 5, and the panel 4 is fixedly connected to the bottom case 5. A pull plate 7 is arranged in the clamping pull plate mechanism 6, and the main part of the pull plate 7 is arranged in the bottom case 5. A plurality of springs 8 are arranged in the bottom case 5 and connected to the pull plate 7. A control main board 10 is also arranged in the bottom case 5 and is electrically connected to the first secondary screen 2 and the second secondary screen 3.

[0006] Further, a pull ear 61 is arranged in the middle of the outer side of the clamping pull plate mechanism 6, and a fixed ear 101 is arranged on the side of the clamping mechanism 1 opposite to the clamping pull plate mechanism 6.

[0007] Further, a wire groove 74 is arranged in the middle of the pull plate 7, and a wire 9 is arranged in the wire groove 74. One end of the wire 9 is electrically connected to the first secondary screen 2, and the other end is electrically connected to the control main board 10.

[0008] Further, movable connection shafts 15 are arranged on both the clamping mechanism 1 and the clamping pull plate mechanism 6, and the movable connection shafts 15 are movably connected to the first secondary screen 2 and the second secondary screen 3.

[0009] Further, the movable connection shaft 15 includes a connection housing 151 and a connection shaft 152. There are two connection shafts 152 in total. The main part is a cylindrical shaft and is movably arranged in the connection housing 151. The end is a fixed part in the shape of a rectangular block. One end is fixed to the clamping mechanism 1 and the clamping pull plate mechanism 6, and the other is fixed in the corresponding fixed seats of the first secondary screen 2 and the second secondary screen 3.

[0010] Further, movable shaft fixing holes 71 are arranged at both ends of the pull plate 7. One side of the movable shaft fixing hole 71 is recessed inward to form a movable shaft groove 72. The movable shaft groove 72 is matched with the movable connection shaft 15. A plurality of guide grooves 73 are horizontally arranged on the main part of the pull plate 7. A spring connection hole 75 is also arranged at the end of the main part of the pull plate 7, and the spring connection hole 75 is connected to the spring 8.

[0011] Further, a pull hook 62 is arranged on one side of the clamping pull plate mechanism 6, and the pull hook 62 is clamped with the end of the guide groove 73.

[0012] Further, a limit post 12 is arranged on one side of the bottom case 5, and the limit post 12 is located in the guide groove 73.

[0013] Further, two limit blocks 11 are symmetrically arranged on the top of the bottom case 5. A charging port 13 and a signal port 14 are arranged at the bottom of the bottom case 5, and the charging port 13 and the signal port 14 are electrically connected to the control main board 10.

[0014] Furthermore, a telescopic support frame 16 is provided on the back of the bottom case 5. The top of the telescopic support frame 16 is movably connected to the bottom case 5, the bottom of the telescopic support frame 16 is snap-connected to the bottom case 5, and a tooth structure with a spring button is provided inside the telescopic support frame 16.

[0015] After adopting the above technical solution, the beneficial effects of the present utility model are as follows: The detachable expansion device can be clamped and assembled with the original screen, can also be placed and used alone, and can be assembled and used with screens of different sizes. The multi-angle rotation of the two sub-screens can bring a better user experience to the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 is a schematic structural diagram of the present utility model;

[0018] Figure 2 is Figure 1 the second angle view of

[0019] Figure 3 is a schematic structural diagram of the clamping mechanism 1 in the present utility model;

[0020] Figure 4 is a schematic internal structural diagram of the clamping mechanism 1 in the present utility model;

[0021] Figure 5 is a schematic structural diagram of the clamping pull plate mechanism 6 in the present utility model;

[0022] Figure 6 is a schematic structural diagram of the pull plate 7 in the present utility model;

[0023] Figure 7 is a schematic structural diagram of the movable connection shaft 15 in the present utility model;

[0024] Figure 8 is a schematic internal structural diagram of the telescopic support frame 16 in the present utility model;

[0025] Figure 9 is a schematic diagram of the connection state between the present utility model and a notebook computer.

[0026] Description of reference numerals: clamping mechanism 1, first secondary screen 2, second secondary screen 3, panel 4, bottom case 5, clamping pull plate mechanism 6, pull plate 7, spring 8, wire 9, control main board 10, limit stop 11, limit post 12, charging port 13, signal port 14, movable connection shaft 15, telescopic support frame 16, pull ear 61, hook 62, movable shaft fixing hole 71, movable shaft groove 72, guide groove 73, wire groove 74, spring connection hole 75, fixed ear 101. Detailed implementation manners

[0027] Refer to Figures 1 - 9 As shown, the technical solution adopted in this detailed implementation manner is as follows: It includes a clamping mechanism 1, a first secondary screen 2, and a second secondary screen 3. The first secondary screen 2 and the second secondary screen 3 have the same structure and are symmetrically and movably arranged on both sides of the clamping mechanism 1. A clamping pull plate mechanism 6 is movably arranged on one side of the clamping mechanism 1. The clamping mechanism 1 includes a panel 4 and a bottom case 5. The panel 4 and the bottom case 5 are fixedly connected. A pull plate 7 is arranged inside the clamping pull plate mechanism 6, and the main part of the pull plate 7 is arranged inside the bottom case 5. A plurality of springs 8 are arranged inside the bottom case 5 and connected to the pull plate 7. A control main board 10 is also arranged inside the bottom case 5 and electrically connected to the first secondary screen 2 and the second secondary screen 3. In this embodiment, two identical movable secondary screens are provided and symmetrically arranged on both sides of the clamping mechanism. The clamping mechanism can be matched with laptop computer screens of different sizes through the combination of the clamping pull plate mechanism and the pull plate, and the screen can be clamped, so that the entire expansion device can be installed on the laptop computer, and more content can be displayed. The bilateral display method not only facilitates the use by one user, but also facilitates the display of relevant content from three direction dimensions when there are many people. Different content can be displayed on different screens according to needs, which can better meet the needs of different users. When not spliced with the computer, the two secondary screens can be rotated to form a bracket structure with the clamping mechanism and be placed at any position for use, which can adapt to more usage scenarios and is more user-friendly.

[0028] More specifically, a pull ear 61 is arranged in the middle of the outer side of the clamping pull plate mechanism 6, and a fixed ear 101 is arranged on the side of the clamping mechanism 1 opposite to the clamping pull plate mechanism 6. The setting of the pull ear and the fixed ear can better clamp the computer screen and is more convenient for the lateral pulling out of the clamping pull plate mechanism to match a larger size screen.

[0029] More specifically, a wire groove 74 is provided in the middle of the pull plate 7. A wire 9 is arranged in the wire groove 74. One end of the wire 9 is electrically connected to the first secondary screen 2, and the other end is electrically connected to the control main board 10. Activity connection shafts 15 are provided on both the clamping mechanism 1 and the clamping pull plate mechanism 6. A total of four activity connection shafts are provided. The activity connection shafts 15 are movably connected to the first secondary screen 2 and the second secondary screen 3. In this embodiment, one end of the wire 9 is a fixed end arranged on the bottom case and electrically connected to the control main board, and the other end is a free end, passing through the activity connection shaft and being electrically connected to the secondary screen.

[0030] More specifically, the activity connection shaft 15 includes a connection housing 151 and connection shafts 152. A total of two connection shafts 152 are provided. The main body part is a cylindrical shaft and is movably arranged in the connection housing 151. The end is a fixed part in the shape of a rectangular block. One of the ends is fixed to the clamping mechanism 1 and the clamping pull plate mechanism 6, and the other is fixed in the corresponding fixed seats of the first secondary screen 2 and the second secondary screen 3. Two connection shafts are arranged in the connection housing, and the distance between the two connection shafts matches the thickness of the secondary screen, so that the secondary screen can be smoothly stacked on both sides of the clamping mechanism during 360-degree rotation, facilitating the storage of the secondary screen.

[0031] More specifically, activity shaft fixing holes 71 are provided at both ends of the pull plate 7. One side of the activity shaft fixing hole 71 is recessed inward to form an activity shaft groove 72. The activity shaft groove 72 matches the activity connection shaft 15. A plurality of guide grooves 73 are horizontally arranged in the main body part of the pull plate 7. A spring connection hole 75 is also provided at the end of the main body of the pull plate 7. The spring connection hole 75 is connected to the spring 8. A hook 62 is provided on one side of the clamping pull plate mechanism 6. The hook 62 is clamped with the end of the guide groove 73. A limit post 12 is provided on one side of the bottom case 5. The limit post 12 is located in the guide groove 73. In this embodiment, in order to ensure the smooth movement of the pull plate, the guide groove 73 is provided, and a hook is provided on the clamping pull plate mechanism to limit the pull plate. When the clamping pull plate mechanism is pulled open, the hook will drive the pull plate to move synchronously. At the same time, the limit post can prevent the pull plate from shaking during the movement. Due to the cooperation of the spring connection hole and the spring, the restoring force generated by the spring after the pull plate is pulled out enables the pull ear to clamp the screen, thereby fixing the entire expansion device.

[0032] More specifically, two limit blocks 11 are symmetrically arranged at the top of the bottom case 5. The limit blocks are used for top limit of the computer screen, making it more convenient to clamp and connect with the screen. A charging port 13 and a signal port 14 are provided at the bottom of the bottom case 5. The charging port 13 and the signal port 14 are electrically connected to the control main board 10. After the devices are spliced, the power cord and the data signal line can be connected, and then the two secondary screens can be used.

[0033] More specifically, a telescopic support frame 16 is provided on the back of the bottom case 5. The top of the telescopic support frame 16 is movably connected to the bottom case 5, and the bottom of the telescopic support frame 16 is snap-connected to the bottom case 5. Moreover, a toothed structure with a spring button is provided inside the telescopic support frame 16. In this embodiment, a toothed structure and a spring button structure are provided inside the telescopic support frame to achieve the telescoping of the support frame. The spring button is a seesaw structure. When pressed, the button teeth are separated from the support slot, and the support can be pulled out. When the button is released, the teeth snap back into the slot to limit the support. Thus, after being spliced with the computer screen, different lengths can be extended for better support, ensuring the use effect of the device.

[0034] The working principle of the present utility model: There are mainly two ways to use the expansion device. One is to connect and assemble it with the original computer screen to form an integral wide screen. Connect the computer and the clamping mechanism 1 with a data cable, and then connect the power cable to the clamping mechanism 1 to supply power and transmit signals to the two secondary screens. Pull open the clamping pull plate mechanism 6, place the computer screen in the middle of the clamping mechanism 1, release the clamping pull plate mechanism 6, and the pull ear 61 and the fixed ear 101 clamp the screen. At this time, the two secondary screens and the original screen are at the same height position. According to needs, the angles of the two secondary screens can also be adjusted to obtain the best viewing effect. At this time, the telescopic support frame 16 can be pulled out to support the device and prevent the device from tilting due to unstable center of gravity; the second way of use is not to splice with the computer screen. Rotate the two secondary screens and the clamping mechanism 1 to form a bracket structure, which can be directly placed on a plane. Connect the computer with a data cable, and the two secondary screens can be used for display and viewing at any position. Moreover, the secondary screens can rotate 360 degrees and can be rotated to any angle according to the use needs.

[0035] The above is only used to illustrate the technical solution of the present utility model and not to limit it. Any other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solution of the present utility model should be covered within the scope of the claims of the present utility model as long as they do not depart from the spirit and scope of the technical solution of the present utility model.

Claims

1. A laptop screen expansion device, characterized in that: It includes a clamping mechanism (1), a first secondary screen (2), and a second secondary screen (3). The first secondary screen (2) and the second secondary screen (3) have the same structure and are symmetrically and movably arranged on both sides of the clamping mechanism (1). A clamping pull plate mechanism (6) is movably arranged on one side of the clamping mechanism (1). The clamping mechanism (1) includes a panel (4) and a bottom shell (5), and the panel (4) is fixedly connected to the bottom shell (5). A pull plate (7) is arranged inside the clamping pull plate mechanism (6), and the main part of the pull plate (7) is arranged inside the bottom shell (5). A number of springs (8) are arranged inside the bottom shell (5) and are connected to the pull plate (7). A control main board (10) is also arranged inside the bottom shell (5) and is electrically connected to the first secondary screen (2) and the second secondary screen (3).

2. The laptop screen expansion device according to claim 1, characterized in that: A pull ear (61) is arranged in the middle on the outer side of the clamping pull plate mechanism (6), and a fixed ear (101) is arranged on the side of the clamping mechanism (1) opposite to the clamping pull plate mechanism (6).

3. The laptop screen expansion device according to claim 1, wherein: A wire groove (74) is arranged in the middle of the pull plate (7), and a wire (9) is arranged inside the wire groove (74). One end of the wire (9) is electrically connected to the first secondary screen (2), and the other end is electrically connected to the control main board (10).

4. A laptop screen expansion device according to claim 1, characterized in that: Movable connection shafts (15) are arranged on both the clamping mechanism (1) and the clamping pull plate mechanism (6), and the movable connection shafts (15) are movably connected to the first secondary screen (2) and the second secondary screen (3).

5. A laptop screen expansion device according to claim 4, characterized in that: The movable connection shaft (15) includes a connection housing (151) and a connection shaft (152). There are two connection shafts (152) in total. The main part is a cylindrical shaft and is movably arranged inside the connection housing (151). The ends are fixed parts in the shape of rectangular blocks. One end is fixed on the clamping mechanism (1) and the clamping pull plate mechanism (6), and the other is fixed inside the corresponding fixed seats of the first secondary screen (2) and the second secondary screen (3).

6. The laptop screen expansion device according to claim 1, wherein: Movable shaft fixing holes (71) are arranged at both ends of the pull plate (7). One side of the movable shaft fixing hole (71) is recessed inward to form a movable shaft groove (72). The movable shaft groove (72) matches the movable connection shaft (15). A number of guide grooves (73) are horizontally arranged on the main part of the pull plate (7). A spring connection hole (75) is also arranged at the end of the main part of the pull plate (7), and the spring connection hole (75) is connected to the spring (8).

7. The screen expansion device for a laptop computer according to claim 1, wherein: A pull hook (62) is arranged on one side of the clamping pull plate mechanism (6), and the pull hook (62) is clamped with the end of the guide groove (73).

8. The laptop screen expansion device according to claim 1, wherein: A limit post (12) is arranged on one side of the bottom shell (5), and the limit post (12) is located inside the guide groove (73).

9. The screen expansion device for a notebook computer according to claim 1, wherein: Two limit blocks (11) are symmetrically arranged on the top of the bottom shell (5). A charging port (13) and a signal port (14) are arranged at the bottom of the bottom shell (5), and the charging port (13) and the signal port (14) are electrically connected to the control main board (10).

10. A laptop screen expansion device according to claim 1, characterized in that: A telescopic support frame (16) is arranged on the back of the bottom shell (5). The top of the telescopic support frame (16) is movably connected to the bottom shell (5), and the bottom of the telescopic support frame (16) is clamped with the bottom shell (5). A toothed structure with a spring button is arranged inside the telescopic support frame (16).

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